Bending machine

A bending machine is a widely used piece of equipment in the metal processing industry, primarily designed for bending thin sheets. The following is a detailed introduction to the bending machine:

I. Basic Definition and Classification

A bending machine, known as "Bending machine" in English, is a device capable of bending thin sheets. Based on different driving methods, structural forms, and application scopes, bending machines can be classified into various types, mainly including manual bending machines, hydraulic bending machines, and CNC (Computer Numerical Control) bending machines. Among them, manual bending machines can be further divided into mechanical manual bending machines and electric manual bending machines; hydraulic bending machines are classified into torsion - shaft synchronization, mechanical - hydraulic synchronization, and electro - hydraulic synchronization according to the synchronization method, and into upper - moving type and lower - moving type according to the movement mode.

II. Working Principle

The basic working principle of a bending machine is to use hydraulic pressure or servo motors to drive the slider to move up and down. By the interaction of the upper and lower dies, pressure is applied to the sheet, causing it to undergo plastic deformation according to the predetermined angle and shape. By adjusting the position of the slider and the shape of the dies, bending requirements for different angles and shapes can be met.

III. Structural Features

The main structure of a bending machine consists of a support, a workbench, and a clamping plate. The workbench is placed on the support and is composed of a base and a pressure plate. The base is connected to the clamping plate through a hinge. In addition, the base is made up of a housing, a coil, and a cover plate. The coil is placed in a recess of the housing, and the top of the recess is covered with the cover plate. When in use, the coil is energized through a wire. After being energized, it generates an attractive force on the pressure plate, thereby clamping the thin sheet between the pressure plate and the base. This electromagnetic clamping method allows the pressure plate to be made to meet various workpiece requirements and enables the processing of workpieces with sidewalls.

IV. Application Fields

Bending machines play a crucial role in multiple fields such as manufacturing, aerospace, and automotive engineering. In the manufacturing industry, they are used to make various metal components, frames, and casings; in the aerospace field, bending machines are employed to manufacture key parts such as aircraft engine components and wing structures; in the automotive engineering field, they support the manufacturing and maintenance of automobile body parts. Moreover, bending machines are also widely used in household appliances, electrical, construction, and many other fields.

V. Usage Methods and Precautions

When using a bending machine, certain steps and precautions need to be followed:

Before use, check whether the power supply, air pressure, and hydraulic pressure are sufficient, whether the machine is clean, and whether there are any obstacles in the slideway area.

Turn on the machine's power switch, start the oil pump, and set the origin of each axis correctly.

Install the dies. After installing the base, lower die, and upper die, align the dies and lock the lower die.

Read the drawings to understand the bending sequence and dimensions, and then start programming the bending machine.

During the bending process, pay attention to methods for increasing the bending speed and adjust the middle angle to make it consistent with the left and right angles. At the same time, follow the central bending principle to ensure bending accuracy.

For short - term breaks, turn off the oil pump to save electricity and time; for long - term shutdowns, lower the lower die to the lowest position, turn off the oil pump and power, and remove the dies and put them back on the die rack.

In addition, it is strictly prohibited to operate the bending machine in violation of regulations to avoid causing harm to personnel, equipment, and dies. Usually, pay attention to the cleaning and maintenance of the machine and develop good habits of taking care of the equipment and dies.