Bending machines for sheet metal: description and design, varieties and principle of action, prices

Bending or bending is a procedure, as a result of which the harvested part takes the desired shape. This is due to stretching of the outer and compression of the inner layers of the product. Only the layers retain their original dimensions, which are along the axis.

This procedure is performed by special machines, by means of which from sheets of metal it is possible to make various boxes, segments, corners, stands, various profiles and much more. Such bending machines have many varieties and areas of application. Therefore, their prices depend on the design of the equipment.

Varieties and design of bending machines

To imagine, how such equipment works, should know, what it consists of.

Design of bending machines:

1. The table of back support of the sheet is intended for placement of the processed detail, which for him will move in the right direction. exept this, on the supports of the table is a cutter and a bender.
2. The roller knife provides a cut of metal. It must be sharp and strong.
3. The front stops are designed to adjust the width of the cut.
4. The wooden stand serves as an additional support when bending products.
5. The protractor is designed to accurately set the angle.
6. Height clamps allow you to adjust the height of the product.

The working length and maximum thickness of the workpiece in each machine is individual.

Types of bending machines

Used in industry and construction structures to obtain metal products of the desired configuration and parameters are of the following types:

1. The manual machine is small in size, easily transported and used for small-scale work. With its help it is possible to bend galvanized aluminum, steel, copper sheets and details, covered with paint and varnish. You can work on such equipment without special training.
2. Mechanical structures work by transmitting energy from the flywheel, which is pre-untwisted.
3. Electromechanical machines work due to the electric motor, reducer, belts, drive chain system.
4. Hydraulic units bend the sheets with a hydraulic cylinder.
5. The pneumatic designer uses pneumatic cylinders in his work. It is intended for bending of the sheets covered with paint.
6. Electromagnetic machines are used to make segments and boxes. Metal sheets on such equipment are bent under the action of a high-power electromagnet.
7. Mobile units are compact, therefore with their help it is possible to process necessary preparations directly on the installation site. They are most often used on construction sites and in small-scale production.

Advantages and disadvantages of bending machines

Among the undeniable advantages of bending metal sheets with special equipment can be noted:

1. High strength of finished products.
2. Ability to obtain the required angle without seam.
3. Exception in the area of ​​bending corrosion.
4. Possibility to make an integral design.

The disadvantages of such equipment include:

• rather high prices of machines;
• the complexity of the process when performing work on manual machines.

However, these shortcomings of the designs are incomparable with the resulting high quality products.

The principle of operation of various sheet bending machines

Modern equipment allows you to convert sheet blanks of different sizes of the product to specific shapes.

Use of hand machines

Such structures are marked by the depth of supply of metal, its maximum thickness and length of the working bend.

Manual sheet bending works as follows:

1. A special beam is pressed against the table sheet of metal.
2. The workpiece is bent with a beam to the desired angle.
3. It is necessary to keep in mind, that the bending thickness of such equipment should be about two millimeters.

Due to that, that handheld devices have low weight, they can be used not only in the shop, but also directly on the construction site or in the workshop.

Hydraulic bending equipment

Such devices have greatly facilitated the processing of metal products. The principle of their work is as follows:

1. The energy carrier in such a device is liquid. Under pressure, it pushes the plunger out of the cylinder, due to which the movable crossbeam with a striker begins to move.
2. Emphasis is placed on the sheet located on the table, and he begins to bend.

Most often, hydraulic sheet benders are used to bend workpieces along the entire length of the table or for deep drawing of metal. Due to the precise operation of the cylinders, they are highly productive. When using such structures, you can easily control the movement, speed and stop the slider.

Areas of application of hydraulic machines: