A stamping and stretching automatic production device and its control method

Abstract

The invention discloses a stamping and stretching automatic production device and its control method, aiming to provide a stamping and stretching full-automatic production device with strong stability, simple structure and strong practicability. The main point of the technical scheme is the first buffer The oil circuit includes a first buffer valve and a first on-off valve. The valve cavity of the first buffer valve is provided with an inner spool. The inner spool includes a table-shaped part located in the oil return chamber and a flat part located in the recompression chamber. The surface area of ​​the shaped part is smaller than that of the flat part. There are several through holes connecting the oil return chamber and the recompression chamber on the inner valve core. There is a return spring in the recompression chamber. Close the first on-off valve, at this time, the pressure on the spool in the first buffer valve from the hydraulic pump gradually decreases until the first on-off valve is closed, the first buffer valve is subjected to the force of the return spring, and the pressure on the first buffer valve is formed. The plugging effect of a buffer valve is applicable to the technical field of mechanical processing equipment.

Description

A kind of stamping and drawing automatic production device and control method thereof technical field The present invention relates to a kind of mechanical processing equipment technical field, more specifically, it relates to a kind of stamping and drawing fully automatic. Dynamic production device and control method thereof. Background technique [0002] Stretch forming is a stamping method that uses a die to form a flat blank into an open hollow part. stretch As one of the main stamping processes, it is widely used. It can be made into cylindrical, rectangular, stepped, spherical, cone shape by drawing process Shaped, parabolic and other irregularly shaped thin-walled parts, if combined with other stamping forming processes, can also produce shapes more complex parts. At present, the stamping and drawing fully automatic production device on the market includes a piston processing system, a transmission system and a group of The piston processing system consist...

AI Technical Summary

Problems solved by technology

In the production of traditional stamping and stretching automatic production equipment, it is necessary to control the hydraulic control part. How to control the hydraulic pressure, ensure the stability of processing, and ensure the accuracy of processing are all current problems. At the same time, the traditional hydraulic processing method , when the equipment is stopped or started suddenly, hydraulic shock will occur, and the shock pressure can be as high as 3-4 times the normal working pressure, which will damage the components, pipes, instruments, etc. in the hydraulic system and affect the work of the hydraulic system stability and reliability

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