How to make a metal bending machine

How to make a sheet metal bending machine with your own hands

Nowadays, sheet metal rolling is gaining momentum. More and more often, one or another person has a brand new fence made of metal profile sheets.

The question arises, what kind of machine creates this wonderful and necessary building product for humanity.

Plate bending machine

This is a specially created device with which you can bend sheets of galvanized metal of a certain thickness. This miracle machine is usually used for production purposes.

Such a device never became widespread among skilled craftsmen. However, nowadays there are people who were able to reproduce the prototype of the production module and make their own sheet bending machine.

This thing is quite easy to do with your own hands; it will not take up much space in your garage or workshop.

Direction of application

It would seem that this is quite simple equipment, but it covers a huge industry. This invention is capable of producing products in the following fields of activity:

Widest scope of application

This is construction. It is in this area that you can find a huge selection of corrugated sheets, metal profiles, metal tiles and their components. Also metal siding - it is used for interior decoration of houses and buildings. Ventilation shafts are also produced using sheet benders.

Mechanical engineering and aviation

And also shipbuilding. This area is very expanded, as various parts for bodies, aircraft skins, and also skins for shipping equipment are created.

Electronics

Not everyone knows that sheet bending machines are used to create housings for household appliances (microwave ovens, ovens, refrigerator and washing machine housings, computer housings, and much more).

Furniture manufacture

In this area, boxes, lockers for changing rooms, lockers for storing things, etc. are created.

Many areas were covered in the operation of a sheet bending plant. Each of the above areas is very common among the population.

Types of sheet bending devices

Like many other machines, sheet bending machines differ according to one of the most important criteria - this is the type of drive action.

Consider these types:

Manual drive action

This type is used mainly in everyday life. These include homemade inventions. It is with the help of this device that you can make any devices from galvanization for your home or garden. And if you correctly install support beams and staples on a manual sheet bender to the required bend radius, this will allow you to create complex elements.

Mechanical impact

Such units belong to stationary machines. The acting force is distributed from the flywheel. This design has limitations in its use. The fact is that the device is equipped with a special lever, through which the sheet is folded. The downside is that it requires physical force.

Electromechanical option

Electromechanical drives have received widespread approval among their owners. This is because this machine is very convenient and versatile. The process begins with laying galvanization on the surface of the matrix.

After pressing the start key, the punch, pusher and the gearbox itself come into force. Due to this, the galvanized sheet bends or bends with the necessary parameters.

The force produced by such a machine is at least 100-200 kilograms; in some cases, this characteristic can reach up to one ton.

Electromagnetic drive action

Electromagnetic machines, nowadays, are mainly used in the metal rolling industry. The percentage of use of such equipment in mechanical engineering is 70%. It has only one advantage. Small dimensions, high productivity (this device is capable of producing about several hundred parts in just one minute), it is completely silent.

Hydraulic drive

This category belongs to the category of press brakes. Presses with hydraulics are used in the serial production of parts. They are very productive, high quality, fully automated, and have control over the bending angle of the sheets.

Zig machine

This device has a very important side. They are used in the manufacture of components. Using a zig machine, you can make flanging of galvanized sheets, corrugating edges, rolling connecting bends and much more.

Making a sheet bending machine with your own hands

If you look at it, detailing a sheet metal bender is not that difficult.

Bending beam

Due to it, the metal sheet is bent at an angle from 0 to 180 degrees.

Pressure beam

This part holds the sheet with clamping force and prevents it from sliding.

Goniometer disc

A special disk that displays all the necessary angle dimensions.

Disc knife

A sharp, sharpened blade made from high-strength steel that cuts steel without problems.

Back table

It consists of a through structure with a flat, top surface on which the galvanized workpiece will move.

Clamping handle

Due to it, the pressure beam is brought into readiness and action.

Stretching device

Allows you to select the position and shape of beams to produce high-quality bending of rolled metal products.

Development of a technical device

Advice: Before you get ready to draw drawings, look for various details for your future brainchild, it is very important to make a choice, choose what is most suitable for you. It is also important to take into account the area in which your homemade module will be used.

During the design process, it is important to assemble it in a way that is comfortable for you. So that the entire load is distributed to the most enduring muscles of your body and to the support posts of the device.

When developing a unit that you want to create with your own hands, it is important to consider the following parameters:

• The width of the galvanization should not exceed one meter.
• The bend angle should not be less than 120 degrees.
• The number of continuous production cycles should not exceed 1200 units.
• The use of various alloys of steel and other metals as workpieces is strictly prohibited.
• Permitted thickness of the following metals:
• Aluminum - permissible thickness 0.7 millimeters.
• Galvanization - the optimal thickness is 0.66 millimeters.
• Copper - a thickness of one millimeter is allowed.

When all the necessary criteria are taken into account, you can safely assemble your instrument.

This is what sheets of steel and metal will look like when they are bent and passed through rollers. In addition, the figure shows in what ways the sheets can be bent to obtain the desired shape.

Variety of folding galvanized sheets

Drawings of a sheet bending machine

Drawing of a bending machine made from simple parts.

The drawings of any device are considered the basis of your invention. After all, it will indicate the dimensions and location of a particular part. When you have everything you need

dimensions and sketches, then assembling the device will certainly end in success. Nowadays, there are a huge number of different drawings with dimensions . As they say, the choice is yours! Below we will look at one of the simplest drawings.

This variety is quite productive and successful model.

Selection of materials

All materials for this machine can be easily found in your garage. So, let's look at what these materials are:

Wooden insert

Indicated in the drawing by the number “1”, it is created from a simple wooden block.

Metal channel

Size 100x120 mm will fit well into the base design.

Right cheek

It is made from steel sheet, 6-8mm thick.

Iron corners

60mm and 80mm will serve for the manufacture of a pressure beam.

Punch axis

Can be created from an iron pin with a diameter of 10 mm.

The punch itself can be created from an iron angle 80x100 mm, or you can use a channel.

Steel rod

10 mm in diameter is suitable for creating a punch lever.

Tip: To create a punch, it is best to choose a channel rather than a metal corner. This is because the channel can withstand much more bending than the corner.

Detailing and assembly process

The assembly process is presented to your attention, as well as the description and location of the parts. A welding machine will certainly help you during assembly. The seams after welding must be processed so that the seams are flush with the plane of the part on which the seam is located.

So, let's look at the parts indicated on the assembly diagram:

Location of parts during assembly.

• A medium-sized clamp (the M 10 screw has a knob on one side and a heel on the other), located in a corner measuring 40x60 mm.
• The cheek is made of sheet steel, 8 mm thick.
• The base is made of channel 100x120 mm.
• Angle bracket 110x110 mm.
• Pressure beam made from angle 60x60 mm and 80x80 mm.
• The punch axis is made of 10 mm rod.
• The punch itself is made from an angle 80x100 mm.

After all of the above parts are in place and secured, you should prepare your machine for operation. To do this, you simply need to remove all construction debris that remains after assembly.

Rules and safety precautions during operation

Everyone has long known that safety is the key to health and longevity. And also a chance not to remain disabled. This machine, in its category, is extremely dangerous. The thing is that the machine itself can cause a huge number of injuries. In addition, the material itself that will be used on it is very sharp.

Therefore, it is important to take into account the simplest rules in order to avoid danger:

• If your machine is purchased, then it is important to check all components of the device for serviceability.
• Before work, it is necessary to tighten all clothes so that a hanging jacket does not stick out, a belt or lace does not dangle, etc.
• When working with a purchased or homemade machine, you need to purchase safety glasses and thick gloves that will be comfortable to work in.
• Check the condition of the installation fasteners to ensure that everything is tight and nothing is loose.
• All workpieces must be placed near the machine so that it is convenient to pick them up with your hands.
• Ensure sufficient lighting in the workplace.
• The workplace must be cleared and have free passage within a radius of one meter.
• The frame must be grounded if an electric drive is present.
• If you work with electricity, it is strictly necessary to have a rubber mat at your workplace.
• It is unacceptable to put various materials into the machine that are not intended for this work.

When these rules are followed, you don't have to worry about your safety.

Advice: Due to the fact that the work will be carried out with iron, it is imperative to protect access to the machine from children and not leave the workplace unattended! Also, always be on your guard, as metal is an unpredictable thing!

Overview of homemade machine assembly

Source: https://stanki-info.ru/gibochnyj-dlya-listovogo-metalla-svoimi-rukami.html

Homemade sheet bending machines (sheet benders)

Many products are made from sheet metal - drainage systems, shaped parts for roof cladding covered with corrugated sheets or metal tiles, flashings for plinths, corners for structures made of corrugated sheets, etc. All this can be done by a special bending machine for sheet metal. We’ll talk about how to make a sheet bending machine with your own hands in this article.

Types of sheet benders

There are three types of sheet metal bending machines:

• Simple manual ones, in which metal bending occurs when force is applied in a certain place. These units make it possible to bend sheet material in a straight line at any angle - from several degrees to almost 360°. For bending sheet metal
• Hydraulic machines in which sheet metal is bent to the shape of a matrix using impact. The matrix can be straight or curved. This equipment is professional, used in medium and high-power enterprises.
• Roller or roller bending machines. In them, the sheet of metal is not bent in a straight line but is rounded. Using this equipment, you can make pipes or other similar products yourself. To obtain radial bending of a metal sheet

All these devices are classified as sheet bending machines. The easiest way to make one with your own hands is the unit of the first group, a little more difficult - the third (rollers for sheet metal). So we’ll talk about them - from how to make a sheet bending machine with your own hands.

Simple manual

Shaped metal parts cost a lot of money. Even more than corrugated sheeting or metal tiles, therefore it makes sense to make a simple machine for bending sheet metal, and with its help make as many corners, ebbs and other similar parts as you need, and exclusively to your own dimensions.

Drawing of a bending machine for sheet metal Sheet bender - side view Another model

If you're worried about appearance, you shouldn't be. On sale today there is sheet metal not only galvanized, but also painted. In all designs, the sheet is fixed tightly, so that when working it does not slide on the table, which means that the paint does not rub off or get scratched. It is also not damaged in places of bending. So the products will look quite decent. If you try, they will look even better than what they sell on the market.

Powerful sheet bending machine from brands

This sheet bending machine will require a flat surface (table), preferably metal, three corners with a shelf width of at least 45 mm, and a metal thickness of at least 3 mm. If you plan to bend long workpieces (more than a meter), it is advisable to take wider shelves and thicker metal. You can use brands, but this is for bending metal sheets of large thickness and length.

You will also need metal door hinges (two pieces), two large diameter screws (10-20 mm), wings on them, and a spring. You will also need a welding machine - weld the hinges and make holes (or a drill with a metal drill bit).

For a homemade sheet bender, a 70 mm brand was used - three pieces of 2.5 m each, two bolts of 20 mm in diameter, a small piece of metal 5 mm thick (for cutting jibs), a spring. Here's the procedure:

1. Two brands are folded, and grooves are cut into them at both ends for hinges. The edges of the recesses are beveled at 45°. The third tee is cut in the same way, only the depth of the recess is made a little larger - this will be the clamping bar, so it should move freely.

   Cutting notches for hinges

2. Weld the loops on both sides (weld on the front and back).

   Boil the loops well

3. Two jibs on each side are welded to one of the brands (the one farthest from you, if you “open” them). They are needed so that you can install the clamping bar clamp bolt on them.

   Such jibs

4. Weld the bolt nut to the jibs.

   Weld the nut

5. Install the clamping bar (third cut tee), weld metal plates with a hole in the middle in the upper part. The diameter of the hole is slightly larger than the diameter of the bolt. Center the holes so that they are on the same vertical line with the welded nut. Weld.

   Center, weld

6. Cut the spring so that it raises the pressure bar by 5-7 mm. Pass the bolt into the “ear” of the clamping bar, put on the spring, and tighten the nut. After installing the same spring on the other side, the clamping bar rises on its own when unscrewed.

   Little things left

7. Weld two pieces of reinforcement to the screw head to serve as handles for tightening.

   Weld pieces of reinforcement to the bolt head

8. Weld a handle to the movable (closest to you) brand. That's it, you can work.

   Homemade sheet bender in progress

This option is very powerful - you can bend long workpieces and sheets of considerable thickness. Such scales are not always in demand, but they can always be reduced. The video suggests a similar design of a smaller size, but with a different fastening of the clamping bar. By the way, no one bothers you to also install a spring on the screw - it will be easier to raise the bar. What’s interesting about this design is that you can make beading on it, something that such devices usually cannot do.

This model is welded from a thick-walled angle, the frame is made like an ordinary construction sawhorse, which is welded from the same angle. The handle is from a luggage trolley. The design of the screws is interesting - they are long, the handle is curved in the shape of the letter “L”. Convenient to unscrew/screw.

Small manual sheet bender for DIY production

This homemade sheet metal bending machine has many features:

• The corners are not arranged with shelves facing each other, but are directed in one direction. Because of this, attaching the loop is not the most convenient, but it can be done. Features
• On the bend of the far (fixed) corner, small stop plates for the pressure strip are welded on both sides.
• The screw nut is welded on the same strip (on both sides).

Pressure bar

Now let's move on to the design of the clamping bar (pictured above). It is also made from a corner, but is laid on the machine with an upward bend. To ensure that the bar does not bend during operation, reinforcement is welded on - metal jumpers. Small metal platforms are welded at both ends of the strip, in which holes are drilled for bolts.

Another important point is that the edge that faces the bend is cut off to obtain a sharper bend angle.

The bar is set like this

The clamping bar is placed on the machine, and a spring is placed in the place where the nut is installed. The handle is installed in place. If it does not press the bar, it is raised above the surface due to the elastic force of the spring. In this position, the workpiece is tucked under it, positioned, and pressed.

Place a spring under the hole, then a bolt

A good option for home use. It will not be possible to bend thick metal, but tin and galvanized steel can be bent without difficulty.

Sheet metal rollers or roller bender

This type of sheet bending machine can have three types of drive:

• manual;
• hydraulic;
• electric.

They make rollers for sheet metal with manual or electric drive with their own hands. Manual ones have 3 shafts, electric ones can have 3-4, but usually there are also three.

Roller bending machine

This machine needs a good solid foundation. This could be a separate bed or some kind of workbench or table. The basis of the structure is rolls. They are made the same size. The two lower ones are installed permanently, the upper one is movable, so that in the lower position it is located between the rollers. By changing the distance between the lower rollers and the upper one, the radius of curvature changes.

The machine is set in motion using a handle attached to one of the shafts. Then the torque is transmitted to other rollers through sprockets. They are selected so that the rotation speed is the same.

https://www.youtube.com/watch?v=P0_BY3qVDwM

If the equipment is intended to produce pipes, the upper roller on one side is made removable, with a quick fixation system. Once the sheet is rolled into a pipe, there is no other way to pull it out.

Source: https://stroychik.ru/tools/samodelnye-listogiby

How to make a sheet bending machine with your own hands

Various sheet bending operations are an important part of the general work on building or renovating your own home. Without the use of special equipment, it is impossible to perform them efficiently.

For one-time bending of sheet blanks, it is permissible to rent a suitable device from a neighbor or friend. But if such procedures are often performed, it is more advisable to have a manual sheet bending machine of your own making on hand.

If you have certain skills, tools and space, making a homemade sheet bender is not so bad.

Model of a homemade sheet bender

Drawing up technical specifications

Thanks to the capabilities of the Internet, you can quickly find the required set of drawings, and on the channel you can even watch advertising and informational videos about the design and operating principle of the required unit.

However, all these materials are strictly individual, and therefore were intended by their authors for specific sheet-bending operations. Therefore, before building a sheet bending machine with your own hands, you need to make the right choice of its future technical characteristics.

The main ones should be the following:

1. maximum width of bent metal, mm;
2. maximum thickness of the workpiece, mm;
3. desired range of bending angles;
4. overall dimensions of the mechanism (length, width, height);
5. required bending accuracy.

The direct choice of the limit values ​​of the listed parameters depends on the conditions of use of the machine that will bend sheet metal products. In particular, when constructing a roof, you will most likely have to deal with galvanized sheet or steel with a thickness of no more than 1 mm. When processing copper, an even thinner sheet or strip is often used, and when making fences and railings with your own hands, on the contrary, the thickness of the metal can be 2 - 3 mm.

When choosing the optimal width of a workpiece - sheet or strip - you should proceed from the fact that the width of the part will rarely exceed 1000 mm (in extreme cases, adjacent workpieces can then be joined into a fold using the same machine).

Drawing of a homemade sheet bending machine

The most difficult point in the technical specifications is considered to be the choice of the optimal range of metal bending angles. If everything is clear with the upper limit - 180°, then the lower value should be chosen very wisely. A natural consequence of bending most sheet metals in a cold state is springback - a spontaneous decrease in the actual bending angle due to the elastic properties of the deformed metal. Springing depends on:

• Plasticity of the material: for example, for low-carbon steel the maximum spring angle is 5 - 7°, and for high-carbon steel - up to 10 - 12°. Alloy steels and alloys are even more springy. In particular, for aluminum alloy AMg6, the maximum springback can be 12 - 15°;
• Thickness of the bent part: with decreasing metal thickness, springing decreases;
• Bending angle: as this angle decreases, the springback of almost all metals increases. In particular, at relatively small bending angles (up to 15 - 20°), it is generally impossible to bend a workpiece made of most types of sheet metals and alloys to a given amount in the usual way: it is necessary to use units with simultaneous longitudinal stretching of the sheet. It is impossible to make such machines with your own hands: you will need to install and debug a special hydraulic drive. Therefore, in such cases, it is easier to bend the part with the usual blows of a mallet on, for example, a wooden matrix.
• Drawing diagram of a homemade sheet bender

How to choose the kinematic diagram of a bending machine

The most accessible machines for making with your own hands are machines in which sheet metal will bend as a result of turning a movable crosshead. The operating principle of such a machine is as follows.

The workpiece to be bent is installed on the guide plane of the lower table of the machine and fixed by a stop, which is fixed to the support frame of the device (it is advisable to provide for adjustment of the stop).

In the guides of the sheet bending frame, the upper traverse moves back and forth, which, when moving downwards, clamps the bent product with its ruler.

In front of the lower table there is a rotating beam that can rotate around its axis. The rotation can be done with a handle from a lever drive, but a version with a foot drive can be made. In the latter case, the operator’s hands remain free, which makes it easier to manipulate the workpiece when it is pressed against the ruler of the upper traverse. In addition, when operating a sheet bending machine using a foot, your hands get less tired.

The set of bending tools on the top and rotary beams may vary. The easiest way for this purpose is to order a set of punches and dies with the required bending radii and standard seats. You will have to send all the details with your order - ruler, clamp, etc. – which will require qualified milling work for their production.

The bevel of the top beam will determine the largest value of the bending angle by which the sheet metal can change its axis.

To make such a unit with your own hands, you will need the following materials:

1. steel channel number 6 and above;
2. a set of steel angles intended for making your own machine support frame;
3. thick-sheet broadband steel from which the rotary, upper and lower beams will be made;
4. assorted fasteners;
5. rod for the manufacture of a manual lever drive for turning a beam.

To make work easier, you can also use a bench vice, guides from a decommissioned lathe, as well as massive hinges from steel entrance doors.

Using a similar principle, you can make a homemade sheet bender using wooden parts.

True, it will only be able to bend aluminum and thin-sheet steel (up to 1 mm in thickness), but in many cases these capabilities are quite sufficient, and the labor intensity of building a sheet bending machine with your own hands will be noticeably reduced.

In particular, there is no need for welding operations. It should be noted that the working parts of such a machine should be made only from hardwood (pine, spruce are not suitable).

Having decided on the operating principle of the sheet bender, you can look for suitable drawings. However, a person with an engineering education will be able to produce a set of drawings independently. The advantage of this option is that a number of working drawings can be quickly modified and processed to suit specific capabilities and source materials.

Drawings of the sheet bender must take into account the method of installation. For small units, for example, the bending machine can be mobile or even portable. Otherwise, you will have to use welding to make a stable base, otherwise excessive mobility of the machine will reduce the accuracy of work on it.

Once the machine is ready, it must be checked for functionality and accuracy. To do this, bend a test strip of thick cardboard of the required thickness. If the bending is performed correctly, then the height of the strip flanges will be the same, and there will be no traces left on its surface from the deforming tool.

Source: https://stankiexpert.ru/stanki/gibochnye-stanki/listogib-svoimi-rukami.html

Do-it-yourself homemade sheet bending machine: how to make a sheet bending machine, technical specifications

It is not difficult to make a sheet metal bending machine with your own hands, but so far few of the home craftsmen and specialists who use the necessary forms from sheet steel in their business are creating such equipment for personal needs. Meanwhile, a similar device, which is quite durable and easy to operate, will help you save a lot.

In particular, the production and use of a machine for bending sheet metal with your own hands is important for those who need to perform technological actions for bending sheet metal not every day and in large volumes, but from time to time.

Types of sheet benders and their mechanism

Before you start making a sheet bending machine with your own hands, you need to clearly establish a list of tasks for which you need it. The main purpose of such a device will depend on what scheme it will be made according to.

The most elementary is the mechanism in which sheet iron is bent using a special traverse.

Using such a device, you can easily bend a sheet of metal at an angle of 90 degrees, using only hand strength without additional devices, if the width of the sheet is not more than 0.5 meters.

The base of the sheet is fixed using clamps or a vice, and its bending is carried out due to the pressure exerted by the traverse.

In certain cases, to obtain a turning angle of exactly 90 degrees, an embedded attachment may be useful , which is an ordinary strip of metal that will help compensate for the elasticity of the sheet.

A press brake, the system of which consists of a mesh and a punch, is considered more complex in design. Sheet iron in such a device is located on a matrix, and a punch descends onto the workpiece from above, giving it the required profile. In economic conditions, a sheet bending machine is unlikely to be used, since it is quite complex and unsafe to use.

A variation of the implementation of a homemade sheet metal press, operating in tandem with a self-made hydraulic press. If you already have a press, then adding devices for bending narrow sheets of metal will not be difficult. A sheet bending machine is considered more advanced, in which bending of iron is performed due to the action of three shafts .

This type of equipment is called a pass-through. One of its main advantages is that its controlled rollers allow different bending radii. A similar apparatus for bending metal can be manually or galvanically driven, and its rollers can have a variety of designs.

1. Rollers with a smooth working surface are designed for performing many sheet metal works, which involve bending workpieces, manufacturing pipe sections with large diameters, etc.
2. Profiled rollers are needed for bending parts of roofing units (ridges, boxes, gutters, flanges, etc.).
3. The broaching machine can be equipped with a support, a clamp and a traverse, which allows it to be used for manual bending of blanks.
4. Similar machines are equipped with a set of shafts of different profiles, which can also be purchased additionally to make the machine more versatile.

Where to start production of sheet metal bending machine

To make a machine for bending sheet metal, you will need a drawing of this device or its detailed photos. In addition, it is necessary to take into account a number of significant factors, such as the force that will need to be applied to apply the structure, its weight and size (on which mobility will depend), the initial cost and availability of devices. As a result, there should be the following initial parameters:

1. The maximum width of the sheet that will need to be bent is 2 m.
2. The greatest thickness of sheet material: galvanized - 0.8 mm, aluminum - 0.8 mm, copper - 2 mm.
3. The amount of work courses that will be performed without readjustment or repair is 1300.
4. The largest bend angle of a metal profile, purchased without manual finishing, is 130 degrees.
5. It is highly undesirable to use workpieces made from specific steels (for example, stainless steel).
6. In the sheet bending system, it is necessary to avoid welded installations that do not tolerate alternating loads well.
7. It is necessary to reduce as much as possible the number of machine elements that need to be ordered externally, resorting to the help of turret or milling machine operators.
8. It is very difficult to find a drawing of a device that would satisfy all requests, but you can complete the most successful template.

The installation of a manual sheet metal bending machine can be easily improved. To build a sheet bending machine, this scheme is used:

1. Pillow made of wood;
2. The main beam is made of channel 10−130 mm;
3. Cheek, for the production of which a sheet 7-9 mm wide is used;
4. Manufacture sheet subjected to finishing;
5. A pressure beam made of 70-90 mm corners connected by welding;
6. Rod for rotating the traverse (made from an iron rod with a diameter of 11 mm);
7. The spacer itself is an angle with dimensions of 90-110 mm;
8. The handle of the device is made of a rod with a diameter of 12 mm.

The sheet bending traverse, which according to the initial drawing is planned to be made from a corner, conventionally shows an option made from a channel. Such an improvement will several times increase the endurance of the traverse, which, when using a corner, at a certain moment will certainly bend in the center and will not form a high-quality sheet bend in this place.

Replacing with a channel will allow you to do not 250 bends without straightening or replacing the provided element (which is quite a bit for more or less constructive work), but more than 1400.

The design of this home-built sheet metal bending machine can be further improved, making it more efficient and versatile.

The second option allows you to understand in more detail the installation of a homemade sheet bender:

1. A homemade clamp made from a suitable angle (50-70 mm) and a screw with a heel and a knob;
2. Cheek;
3. Beam acting as the reference point of the machine;
4. Pressure beam bracket made from 120 mm angle iron;
5. The pressing beam of the sheet bender itself;
6. Traverse rotation axis;
7. The traverse itself;
8. Strengthening the pressure beam.

Below is a diagram of increasing the pressure bar. However, if you initially use a rather powerful corner as a clamp, and you don’t plan to bend extremely thick sheets on your sheet bending machine, then you can completely do without reinforcing the clamping bar using the described method .

In order to extend the service life of the pressure beam and make it comparable to the service life of the traverse, it is necessary to increase the provided structural element, which from the very beginning according to the drawing is made of a corner, with a base made of a metal strip with dimensions of 17x90 mm.

The front edge of the provided base must be given an angle of 45 degrees in order to level its area with the plane of the pressing corner itself, and specifically the working edge of the provided element must be chamfered about 3 millimeters. These measures will allow the clamp metal to act not on bending (which is extremely inappropriate), but on compression, thereby increasing the service time without repair many times:

1. A special 61 angle bracket attached to the rear flange of the main clamp angle will keep it from bending upward.
2. You should also think about milling the lower plane of the pressure beam, which forms the bend.
3. The unevenness of the provided plane, according to generally accepted rules, should not exceed fifty percent of the thickness of the workpiece being bent.
4. Otherwise, it will not be possible to bend the blank evenly, without a swollen fold line.

It is necessary to keep in mind that you need to submit a beam for milling only when it already has all the welds, since their execution leads to a change in the geometric characteristics of the structure.

How to increase the strength of machine mounts

There is another big drawback in the sheet bending machine - the way it is attached to the work table. Clamps, which are included in the provided device, are a very unreliable type of fastening, especially considering the rapid asthenicity of welding seams. These fastening parts can, in general, be abandoned, which will also eliminate the need to use welded mountings and jaws. The following steps can be used to solve this problem:

1. Production of a support beam that will extend beyond the desktop;
2. Making U-shaped lugs at the ends of the main beam;
3. Fastening the main beam to the work table using bolts (M10) and shaped nuts with claws.

If the improved plate bending design does not have jaws, how do you attach the crossbar to it? This issue can be solved quite simply: use butterfly door hinges, which are traditionally used for hanging heavy iron doors. These hinges, which provide fairly high precision, can be secured using countersunk screws.

You can bend many blanks on a sheet bending machine with a traverse attached to butterfly hinges, since these hinges are very strong:

1. Reinforced support beam;
2. Flywheel - threaded part;
3. Beam that provides pressing of the workpiece;
4. Tripod for attaching the installation of elements to the desktop;
5. A traverse with which you can bend the workpiece to be cut.

A zig machine (or crimping mechanism) allows you to bend stiffeners on sheet iron structures, which are called zigs. Such machines are classified as special equipment and can be made with galvanic or manual drive. Manual zig machines, also fixed with a clamp, can be quite small in size and can be carried in an ordinary bag for working tools.

Such devices make it possible to make high-quality flanging in one pass not only on convex products (the same shells of iron containers), but also on straight iron sheets. These devices are simply irreplaceable in the production of individual parts of roofing installations.

The working elements of the zig machine are rollers, and its use allows you to significantly save on the purchase of parts of the roofing structure made in the factory. If you watch a video that shows the operation of this device, it becomes clear that it can be used even at the site of direct installation of the roofing system.

Tips for choosing a bending machine

To choose the right mechanism for the production of bent elements from sheet iron, you must follow the following tips:

1. For a home craftsman who occasionally needs a sheet metal bending machine, a simple device made from improvised materials is quite suitable.
2. Those who occasionally carry out roofing installation orders will need a manual machine for bending sheet material and a simple zig machine.
3. Professionals who are involved in the long-term production of elements for roofing systems and sheet metal work need a factory-installed sheet metal bending device.
4. A manual mechanism for making corrugated sheets will be useful for those who professionally produce parts for roofing structures.

A professional installation, characterized by higher strength and durability, is considered suitable for such specialists, for example, the Russian factory sheet bender SKS-2v1, costing 64 thousand rubles.

Source: https://tokar.guru/stanki-i-oborudovanie/dlya-raboty-s-metallom/stanok-dlya-gibki-listovogo-metalla-svoimi-rukami.html

Do-it-yourself bending machines for sheet metal and reinforcement, drawings

Bending machines is an infrequent expression. Much more often they say and write “sheet bending” machines, meaning technical devices for bending sheet iron and metal profiles. Meanwhile, it is more correct to say “bending” machines, because you can bend not only sheet metal, but also metal rods - fittings, for which there is a separate type of bending machines.

Why do we need bending machines?

There is sheet metal. And there are various profiles - bent sheet metal of the most varied shapes and purposes such as gutters, ridges, cornices and other roofing profiles. The difference in cost of sheet material and finished bent parts varies several times.

Therefore, bending sheets yourself is a profitable business from an economic and professional point of view. When it is profitable not to buy, but to do it yourself - a rather rare situation in the modern technical world with the narrow specialization of any production.

Bending profiles on a machine.

Simplicity of execution, high productivity and cost-effectiveness are an excellent combination of advantages that homemade bending equipment of various types has.

Let's understand and put in order information on metal “bending” issues and ways to solve them.

What are bending machines?

Types of bending machines.

Sheet bending machines:

1. simple manual sheet bending;
2. hydraulic for profiles and sheet metal;
3. roller or roller benders.

Machines for fittings:

1. manual;
2. with mechanical drive.

Additionally, the bending machine for reinforcement can vary in size. These dimensions depend on the diameter of the metal rods for which they are intended:

• lightweight for working with rods with a diameter of up to 20 mm;
• heavy – for fittings with a diameter of 20 to 40 mm;
• extra-heavy for bending rods with a diameter of 40 to 90 mm.

Types of bending machines.

Like all equipment of this kind, bending machines can be manual, mechanical, or equipped with an electric drive. It should be said that there are a huge number of offers of high-tech versions on the market. This is especially true for sheet benders with hydraulics.

CNC bending machines, for example, are very widely represented by many foreign and domestic manufacturers.

Not leaf fallers, but leaf benders

Let's look at the different purposes of sheet bending equipment:

• Manual versions are designed to bend sheet metal in a straight line at any angle - from the sharpest to almost 360°. Manual force is applied in a specific one place. The simplest manual option is a machine for bending at an angle of 90° using a traverse.
• Hydraulic versions work on a completely different principle: the metal is deformed using hydraulic shock. Such options are not used at home; this very effective professional equipment is intended for serious industrial enterprises.
• Roller bending machines use rollers to bend around a circle rather than at an angle. Even pipes can be made on roller devices.

A homemade sheet bending machine can be made according to the first and third options. Let's take a closer look at the process of their manufacture. To make a bending machine with your own hands, you need to start with technical settings.

Manual version of the sheet bending machine

This is what you get, taking into account the muscle strength of a person of average height who is going to work stably and without rush jobs:

• The width of the sheet metal should not exceed 1 meter.
• The thickness of sheets for bending should not exceed 0.6 mm for galvanized iron, 0.7 mm for aluminum and 1.0 mm for copper.
• The durability of the device must be at least 1200 operating cycles without repair, otherwise it will be unprofitable.
• Make sure that the need for additional welding is minimal.
• The bending angle of sheet metal, which does not require manual finishing, must be at least 120°.
• Minimize various types of additional turning and milling operations.

Another important condition that affects the productivity and quality of work is compliance with the rules of ergonomics: you need to make sure that the bending machine with your own hands is convenient for you and comfortable to work with.

Now a little physics. The main material for bending equipment is traditional structural steel. The exception is the traverse, which is better replaced with a channel. The fact is that the impact on the traverse from a bent metal sheet is never uniform across its width. The recoil is greatest in the middle; at the edges, where there is no support, this recoil is minimal.

Pipe bending on a manual machine.

Secondly, the load on our unfortunate traverse, together with the pressure, “spreads” and causes stretching in distant areas. But metal has never liked stretching - it quickly gets tired of this kind of deformation. Therefore, if you do not pay attention to the problems of the traverse, the corner in the middle can quickly become deformed, and a bulge will appear in the middle of the bend.

We have reviewed the general requirements for sheet metal bending equipment, now let’s move on to specific models whose characteristics should be optimal for you and only you.

Here are the main points you need to know and consider before getting started:

1. The maximum width in millimeters of sheet metal, usually 1000 mm.
2. The maximum thickness of a sheet of metal workpiece in millimeters.
3. Allowable values ​​of bending angles, range from minimum to maximum.
4. The height, length and width of the device itself.
5. Desirable precision in bending metal sheets.

Of course, all these limit values ​​will depend on your intentions and conditions of use of the machine. If, for example, you are going to do roofing work, you will be dealing with sheets with a thickness of 1 mm or less, and they will be made of steel or galvanized copper.

Well, if you plan to produce elements for metal fencing, then the thickness of the sheets can reach 2 or 3 millimeters.

Determining the dimensions of the bending angles will be a little more difficult. The upper limit, that is, the maximum maximum value of 180°, is understandable. But the minimum value of bending angles is affected by an interesting phenomenon called springing.

Springing is a decrease in the degree of bending angle due to the physical elasticity of the metal, which is deformed in the machine.

This phenomenon must be taken into account, and here is what it depends on:

• Properties of metal in the form of plasticity. For example, steel alloys behave very differently. High-carbon steels show a maximum springback angle of up to 12°, while low-carbon steels show a maximum springback angle of only 5° - 7°. High-alloy steels and aluminum alloys show even higher springback: 12° – 15°.
• Thickness of the metal sheet. It is clear that the thinner the sheet, the less spring it has.
• Angle of bending. The smaller the desired angle, the higher the springback of all metals. Bending metal sheets at a small angle, for example less than 20°, manually is almost impossible. It is also impossible on home bending machines - the problem is high springing. Bending of metal at small angles is carried out only in industrial conditions in combination with longitudinal stretching of sheets. If you need a small acute angle without fail, it is better to make it with a hammer. This won't work with a machine. Springing!

Here's what you need to stock up on to make a sheet metal bending machine with your own hands:

1. Wide-strip sheet steel for the manufacture of beams: bottom, top and rotary.
2. Channel made of steel with a number of at least 6 mm. Just in case: the channel is a standard profile made of black rolled steel.
3. Steel corners for the support frame.
4. A set of fasteners - screws and wings, a spring.
5. Steel rod for hand drive to turn the steel beam.
6. Bench vice.
7. Hinges from steel entrance doors.

A homemade machine for bending sheet metal is produced in the following steps:

• We put two steel sheets or brands together, after which we make identical notches in them. We set the edges of these recesses at an angle of 45°, and in the third sheet or brand, which will play the role of a clamping bar, after trimming we make a deeper recess.
• We weld hinges from steel entrance doors on both sides.
• We weld two steel triangles or jibs to one of the initial pair of brands to fasten the clamping bar to them using a special bolt-shaped fastener. The nuts of this bolt are welded directly to the jibs.
• Now we are working on the clamping bar: we weld metal blanks with a central hole with a diameter slightly larger than the diameter of the bolt to the upper part. We match the holes with the welded nut so that they are on the same line, and weld.
• The clamping bar should rise by 5 - 7 mm. This is done using a spring, which we put on the bolt in the “ear”, after which we tighten the nut tightly. We install exactly the same spring at the opposite end. If everything is correct, the clamping bar will rise on its own when unscrewed.
• Using handles for tightening, you can make pieces of reinforcement by welding them to the screw head. We also weld a handle to the movable brand. The machine is ready.

DIY reinforcement bending machine

If you pass by any construction site with concrete structures, pay attention to the equipment of this construction site. There will definitely be a manual or mechanical bending machine for reinforcement.

Concrete, which is fragile by nature, cannot do without reinforcement; this is the simplest and most effective means of strengthening any building elements made of concrete. According to building standards, all corner concrete structures must be made not just with bending, but with an overlap in each direction of no less than 0.8 meters.

The operating principle of any bending machine for reinforcing bars is absolutely the same: the bar is fixed between two rollers and then bent at an angle using a third roller. The bending radius may vary; it is adjusted by the thrust shaft. This applies to the manual version of the machine.

The main element of a mechanically driven bending machine is a disk with “fingers” that rotates and twists a rod fixed between the fingers. It’s a pleasure to work with such a device: carefully place the rod in the gap between your fingers and start rotating the disk. The rod begins to bend around the central point.

The market offers machines for bending various types of reinforcement, to suit every taste and budget. They are simple and accessible. But the reinforcement can also be bent using a basic pipe bender, which is easy to make yourself.

A bending machine for reinforcement with your own hands is limited by a single factor: the diameter of the rod should not exceed 10 - 14 mm. High productivity is also not about a homemade machine, you need to remember this.

The basis of the machine is a steel frame with a welded pin or corner. The second element is a rotating disk or platform with a lever and bending pins. It is best to place all the elements on a massive plate; the more massive it is, the more stable the machine will be and the larger the diameter of the rods can be processed.

A homemade machine for bending reinforcement is a great way to save time and money during construction work.

Source: https://tutsvarka.ru/oborudovanie/gibochnye-stanki

How to make a manual sheet bender with your own hands: drawings with step-by-step descriptions and video of work

Where do they get metal parts of various shapes? The answer is that they buy them ready-made or make them themselves. Finished metal parts are much more expensive than the cost of a metal sheet, and to make them yourself, you need a special machine. You can make a sheet bending machine with your own hands, having some tools, materials and, of course, those same “golden hands” available. and the drawings presented in our article will also be useful to you.

Isn't it easier to buy a sheet bending machine?

The most pressing issue is the price of a sheet metal bending machine . The cost of factory sheet bending equipment is high. Such an expense is only advisable if you purchase such a machine to earn money, otherwise it will not pay for itself.

In addition, most of the machines of this type are designed to bend sheets up to 3 m wide. Such a unit cannot be called universal, firstly, it will not fit into any garage, and secondly, the mechanical drive is inconvenient for delicate work, and hydraulics complex and expensive. Thirdly, the energy costs for manufacturing small parts are not worth it.

The only option left is with a manual drive, which you can make yourself!

The simplest do-it-yourself sheet metal bending machine

Building a homemade manual sheet metal bender will save you money and will be a real boon whenever you need to deal with sheet metal . Fortunately, you can find a variety of drawings with descriptions on the Internet. All offered models are different, but you can find something common in the design of all variants of any sheet bending machine:

• Clamp;
• Crimping punch;
• Lever handle;
• Grounds.

By the way, all the parts do not have to be made of metal; you can also use wood . The wood is strong enough to process thin aluminum or iron sheets. Ordinary wood for this, of course, is a bit soft; it is better to take hard wood like oak, ash, walnut, etc. But as a last resort, pine material is also suitable for the simplest garage sheet bending machine.

as a basis :

1. We strengthen the tree with metal corners or sheets of metal;
2. Where real strength is required are the hinges for the machine, with the help of which its bending link moves;
3. If the bending link is a decent size, then you won't even need a weight frame to apply the required pressure to the thin sheet of metal;
4. The crimping punch should be fixed with wing nuts, the main thing is to put washers under them;
5. To work with sheets of different thicknesses, you can make blanks of several punches with grooves of different thicknesses;
6. To bend metal sheets at 90 degrees, you need to equip a limiting surface with an inclination of about 5 degrees. Otherwise, it will be impossible to make a perfectly right angle.

Secret! To make precise bends, you need to make a notch at the intended bend location, which will direct the process in the right direction.

Do-it-yourself manual sheet bender for thick sheets

For the manufacture of parts from thin sheet metal, the simplest option made of wood and a minimum of metal elements will do. Whereas for processing thick sheets, powerful channels and angles will be needed. The design elements are the same as in the previous bending machine: base, clamp, lever and crimping ram.

Materials

Material for manual sheet bending:

• Channel No. 6.5 or No. 8 is suitable for the base;
• For clamping we take channel No. 5;
• For the punch you need a corner No. 5 with the thickest walls;
• For a lever handle, fittings with a diameter of 15 mm are suitable;
• 10 mm rod, sheet metal for the “cheeks”.

Although the design does not differ in principle from the first option, you cannot do without a welding machine.

Sequence of work

Let's get started with the work:

1. The punch needs to be made about 5 mm shorter than the base;
2. The holes for the bolts in the clamp are drilled clearly along the axis, at a distance of 30 cm from the edges;
3. A handle-lever in the form of a bracket bends out of the reinforcement. The handle must be welded to the corners at both ends;
4. At the ends of the blanks for the punch and base, you need to chamfer the parameters 7*45°. The chamfer is made along the edge so that axles from a 10 mm rod can be welded to the punch;
5. We weld the rod to the punch so that its axis coincides with the edge of the angle;
6. The final stage is welding the “cheeks” from sheet steel. But first you need to calculate their exact location. To do this, a test assembly is carried out - the punch and the base are clamped in a vice so that the working part of the punch (from the corner) and the wall of the base (from the channel) are in the same plane, but with a gap of 1 mm using, for example, a cardboard sheet;
7. The cheeks are placed on the axes of the punch and are pinched pointwise by the welding machine. Now we carry out test bending of some thin sheet of metal. At this time, the position of the cheeks relative to the base is adjusted - now they can be thoroughly welded;
8. In the base, drill holes of about 8.5 mm using a blank with holes as a guide and apply an M10 thread. Clamping bolts will be screwed into these holes, onto which nuts are placed and immediately welded to the base;
9. Now the bolts are unscrewed and inserted into the wider (10.5 mm) clamp holes. Limit nuts are placed on them from below and welded. To make them more convenient to use, make “wings” or collars on the bolt heads.

Final processing of parts

Some people recommend simply going over the clamp with a file or, even more outlandishly, with a grinder. However, you must be aware that such processing of the clamping plane will not give ideal accuracy - the permissible unevenness of this element is only 0.2 mm . You cannot achieve such precision with a file, and if the processing is poor, your sheets will be wavy after bending.

This will still work for home use, but if you decide to do any work professionally, then this is unacceptable. There is only one way out - to send the clamp for milling, but this must be done after final assembly. When all the nuances that could appear have already appeared, then milling will really help to even everything out to a decent result.

As you can see, wonderful manual sheet metal bending machines can be made in a garage. Choose the option that you need and make with your own hands a simple machine for thin metal or a more serious machine made from channels and angles for working with thick sheets. Drawings with step-by-step descriptions and a video master class will help you. We advise you to heat the sheets at the bending points to make the work even faster and easier.

Source: https://stanok.guru/metalloobrabotka/gibka-metalla/ruchnoy-listogib-svoimi-rukami-video-i-chertezh.html

Do-it-yourself sheet bending: drawings, video, description +

Do-it-yourself sheet bending: drawings, video, description. A huge number of products can be made from sheet metal - a drainage system, shaped parts that can be used to sheathe a roof, ebb for a plinth, corners for buildings made of profiled sheets, etc.

All this can be done by a special bending machine, in other words, a sheet bender, which is not difficult to do with your own hands. Let's talk about this.

Varieties

There are three types of sheet bending machines:

• Simple manual, in this case metal bending is performed by applying force. Such devices make it possible to avoid sheet materials at any angle - from several degrees to 360.
• A hydraulic machine in which sheet metal is bent into a matrix shape using blows. The latter can be straight, sometimes curvilinear. Such equipment is recognized as professional, and is actively used in large and medium-sized enterprises.
• Roller/roller benders, in which a sheet of metal is not bent strictly in a straight line, but is rounded. Using such equipment you can make pipes or any similar products.

All described devices relate to sheet bending machines. It will be easiest to make the first type of equipment with your own hands, and the third one will be a little more difficult. We will talk about them - how to make a sheet bending machine with your own hands + video.

Simple (manual)

Metal shaped parts are expensive, even more expensive than corrugated sheets or metal tiles, so it makes sense to make the simplest machine for bending sheet metal, and with its help make any number of corners, ebbs and other parts that you require, and only to your dimensions .

And yes, don't worry about appearance. On sale if the sheet metal is not only galvanized, but also already painted. In each design, the sheet will be tightly fixed, so during work it will not slide on the table, and the paint will not be erased or scratched.

It will also not be damaged in places of bending, so the product will look decent. With proper effort, your products will look even better than those on sale.

Sheet bender from brands

To make such a machine, you will need any flat surface, for example, a table, preferably metal, as well as 3 corners with a shelf width of at least 4.5 cm, and a metal thickness of at least 0.3 cm.

If you plan to bend long workpieces (length more than 1 meter), then it is advisable to take shelves with a larger width and metal thickness. Products can be used, but this is required for bending sheets of greater length and thickness. You will also need 2 metal door hinges, as well as 2 more screws with a diameter of 1 to 2 cm, with wings and a spring on them.

You will also need welding to weld the hinges and make holes (or a drill with a drill that is suitable for working on metal).

For a sheet bender, which will be made by hand, we use a 7 cm brand - 3 pieces of 2.5 meters, another 2 bolts of 2 cm in diameter, a small piece of metal with a thickness of 0.5 cm.

The procedure is as follows:

1. The two brands should be folded, and at both ends, make recesses for the loops. The edges of the recesses should be beveled at 45 degrees, and the third tee should be cut in the same way, but the depth of the recess should be slightly greater - this will be a clamping bar, so it should move freely.
2. Weld the hinges on both sides (weld the front side and the back side).
3. Weld 2 jibs on each side to the brand furthest from you. They are required so that you can install the clamping bolt.
4. Weld a bolt nut to each jib.
5. Install the clamping bar, and weld metal plates on top, in which there will be a hole in the middle. The diameter of the hole should be slightly larger than the diameter of the bolt. The holes should be centered so that they are aligned vertically with the welded nut. Weld it.
6. Cut the spring so that it can raise the bar by 0.5-0.7 cm. After this, you need to pass the bolt into the “eye,” put on the spring and tighten the nut. After installing the same spring on the other side, the clamping bar will rise on its own when unscrewed.
7. Weld two pieces of reinforcement to the screw head - these will be the handles for tightening.
8. Weld a handle to the movable brand and you can begin.

This option will be the most powerful - you will be able to bend long workpieces and sheets of large thickness. Although such scales are not always in demand, they can always be reduced. In the video there is a design of a similar type, but slightly smaller and with a different fastening of the clamp bar. By the way, you can install a spring on the screw and then it will be easier to raise the bar. The design is interesting because it can be used for flanging, while standard devices cannot do this.

Angle bender with clamping bar

This model is made from a corner with thick walls, the bed is made in the form of an ordinary construction sawhorse, which is welded from a similar corner. The handle was taken from a luggage trolley, and the design of the screws is interesting in its own way - they are long, the handle is taken out in the shape of the letter “L”. It is easy to unscrew and screw into place.

It’s not difficult to make such a sheet bending machine with your own hands, but keep in mind some features:

• The corners are not shelves facing each other, but have a direction in one direction. Because of this, attaching the loop is not the most convenient.
• At the bend of the far corner, weld small stop plates for the strip on both sides.
• On the same strip, weld the screw nut (on both sides).

Now you can go directly to the clamping bar. It can also be made from a corner, but it should be laid on the machine with the bend upward. To ensure that the bar does not bend during operation, reinforcements are welded on - metal jumpers. Weld small metal pads at both ends of the strip with holes for the bolts. And one more point - the edge that is turned towards the bend is required to obtain sharp corners on the bend.

The clamping bar must be installed on the machine, and springs must be placed in the installation location. Reinstall the handle. If it does not press the bar, due to the elastic force of the spring, it will be raised above the surface. In this position, tuck the workpiece under it, align and press. This sheet bender would be a good option for use at home. You won’t be able to bend thick metal, but galvanized and tin can be easily bent.

Sheet metal rollers

This type of sheet bending machine can have three drives:

• Hydraulic.
• Manual.
• Electric.

Do-it-yourself rollers for sheet metal are made with manual or electric drives. A manual one should have 3 shafts, and an electric one may have 3-4, but according to the standard there are also only three.

Such a machine requires a good base, which can be a bed or a workbench. The basis of the structure is the rolls, which must be the same size. The two bottom ones should be stationary, and the top one should be movable.

By changing the distance between the upper and lower rollers, the radius of curvature can be changed.

Results

The machine is driven by a handle, which must be attached to one of the shafts, and then the torque will be transmitted to the remaining rollers through sprockets. They should be selected in such a way that the rotation speed is the same. If the equipment is planned to produce pipes, the upper roller must be removable on one side and have a quick locking system. Once the sheet is rolled into a tube, you will not be able to pull it out any other way.

Source: https://domsdelat.ru/instrumenty/listogib-svoimi-rukami-chertezhi-video-opisanie.html

Instructions for making a sheet bending machine with your own hands

When building a house, making your own roof ridges, ebbs, it is necessary to carry out bending operations with metal sheets. For this, manual devices or specialized machines are used. In order not to buy expensive equipment, you can make a sheet bending machine yourself.

Design of sheet bending machines

You can make a tool for bending metal workpieces only after familiarizing yourself with its internal structure and operating principle. Design of a manual sheet bender:

1. A beam clamping a metal surface.
2. A beam that bends a sheet.
3. A stable base on which the main elements are fixed.
4. An inclinometer is a device that allows you to make bends at the desired angles.
5. Desktop. Must be equipped with depth stops.
6. Handles for transmitting force to the bending beam.

The machine can be equipped with hydraulic or electric drives.

Selection of materials

Before you begin assembling homemade metal bending equipment, you need to prepare the necessary materials:

1. Metal corners - 4–6 meters.
2. Ball from the car. Must be supplied with a bracket.
3. Car stabilizer.
4. Channel for making the base.
5. Metal sheet.
6. Loops - 2 pieces.
7. Wooden block.
8. Metal pipe.

To make a homemade sheet bending machine, you will need different tools: a welding machine for connecting elements, a drill with metal drills, a grinder for cleaning seams, a large grinder.

Improving the design of the sheet bender

For a homemade sheet bending machine, you don’t need to come up with a complex design. It is enough to put together a number of homemade elements:

1. Wooden pillow.
2. Channel base.
3. Desktop made of sheet metal.
4. Corners connected by loops.
5. Handles for bending workpieces.

To improve the machine, it is necessary to make an additional pressure beam. To do this, a metal plate is welded onto the corner, which is wider than it.

DIY sheet metal bending machine

If you don’t know how to make a sheet bender, use the step-by-step instructions:

1. Initially, you need to make a drawing of the sheet bender. On it you need to mark the moving elements, fasteners, and dimensions. No need to make a complex design yourself. It is enough to assemble a simple device without additional functions.
2. Make a base from a channel. It must be stable so that there are no distortions during operation.
3. Make a softening pillow from wood.
4. Using a grinder, cut the corners into 1-meter pieces.
5. Use the stabilizer bar to support the hinges.
6. Grind off the flats on the corners for installing the axle.
7. Weld the axle shafts to the finished samples. Cylindrical elements should protrude beyond the corners by no more than 1 cm.
8. Place the corners with welded axle shafts parallel to each other.
9. Using welding, weld the hinges onto the corners so that they can move freely relative to each other. When unfolded, the corners should present a flat surface.
10. Drill holes to secure the sheet bender on a pre-prepared base with a work table.
11. Cut the metal pipe into two equal parts with a grinder. Weld them onto the corners so that they act as handles.

The dimensions of the work table are selected depending on the dimensions of the workpieces being processed. The same applies to the length of the corners.

DIY sheet metal bending machine

Safety precautions when working with a sheet metal bending machine

In factories that are equipped with machines for bending metal, there are a number of rules regarding working with the equipment:

1. Use a stopper to set the desired angles.
2. Monitor the specified parameters using a protractor.
3. Place the sheets carefully on the work surface.
4. Check the set depth before lowering the pressure beam.
5. Make a test bend to determine how accurately the angle is set.

When using a homemade sheet bender you need to be especially careful:

1. Wear protective gloves to avoid cutting your hands on the sharp edges of the sheet.
2. Do not rush to bend the corners; lower the pressure beam with both hands.
3. Check the integrity of moving elements before starting work.
4. The hand-held device is securely fixed on the work table.
5. Do not attempt to bend thick sheets.

You need to bend the workpieces slowly, checking the angle. Additionally, you can attach a knife for cutting metal to a homemade machine. When using it, you need to periodically sharpen the cutting discs.

Equipment for bending metal sheets can be purchased at a hardware store or assembled yourself.
To do this, you need to know the structural elements, the operating principle of moving mechanisms, and how to connect them. A homemade machine will not allow you to work with workpieces of large thickness, but it will be sufficient for bending skates and ebbs. Do-it-yourself sheet bending from scrap materials

Instructions for making a sheet bending machine with your own hands Link to the main publication

Source: https://metalloy.ru/obrabotka/sgibanie/listogib-svoimi-rukami