Cold bending compressing method and compressing device for implementing method

Abstract

The invention discloses a cold bending compressing method and a compressing device for implementing the method. When a board is cut off, a lower mold cannot be located at the compressing position, after the board is cut off, the lower mold ascends to the compressing position, then, compressing work is carried out, different heights of the lower mold can be controlled through a servo motor, and the lower mold has different compressing positions and also corresponds to the different compressing shapes, so that the mold can be suitable for compressing production of products in various shapes, and the compressing method has the beneficial effect of being high in generality.

Description

technical field [0001] The invention relates to a cold bending and pressing method and a pressing device for implementing the method. Background technique [0002] At present, the end cutting and forming technology used in the cold bending industry has the following defects: the box-shaped parts on the cold bending production line generally adopt the cutting and flanging mode. This kind of shape is simple, and the notch is usually punched first. Direct flanging, the height of the flanging is a fixed size; if the end is pressed, generally one shape is pressed by one mold. Although it can have several widths, it can only press one shape. If there are too many types and the shape When there are more, more pressing molds are needed, and the economy is poor; when the lower mold needs to drop, it is mostly driven by an air cylinder or an oil cylinder, the stroke is not adjustable, and the pressing height is a fixed value. [0003] Chinese patent document CN 202507489 U discloses ...

AI Technical Summary

Problems solved by technology

[0002] At present, the end cutting and forming technology used in the cold bending industry has the following defects: the box-shaped parts on the cold bending production line generally adopt the cutting and flanging mode. This kind of shape is simple, and the notch is usually punched first. Direct flanging, the height of the flanging is a fixed size; if the end is pressed, generally one shape is pressed by one mold. Although it can have several widths, it can only press one shape. If there are too many types and the shape When there are many, more molding dies are needed, and the economy is poor; when the lower die needs to fall, it is mostly driven by an air cylinder or oil cylinder, the stroke is not adjustable, and the molding height is a fixed value

In this kind of shearing device, although the wedge surface cooperation between the lower die and the inclined wedge can improve the lifting accuracy of the lower die, the lifting stroke of the lower die is still uncontrollable due to the low linear expansion and contraction accuracy of the hydraulic cylinder, so that The upward movement of the lower mold is only to cut off the workpiece better, so the pressing position between the lower mold and the upper mold is relatively fixed, and the shape of the pressed product is also relatively fixed

Images