Pressure control system for multi-punching-die co-production

Abstract

The invention creatively relates to the technical fields of punching dies, and particularly relates to a pressure control system for multi-punching-die co-production. The system comprises a press machine, and a plurality of punching stations which are arranged on the press machine, wherein at least two of the punching stations are correspondingly equipped with punching dies with different pressingstrokes; an elastic element is arranged on a connecting line between each punching die and relative punching station, and the elastic ranges of the elastic elements can be adjusted, so that the punching dies can be controlled by the press machine to punch and form together. According to the system, the two-surface rigid contact between an upper die and an upper tabletop and the two-surface rigidcontact between a lower die and a lower tabletop in each punching station in an original technology is replaced by that at least one surface is in elastic contact and one surface is in rigid contact,so that the problem of high pressure fluctuation, caused by slight fluctuation of gaps, of each punching station, can be avoided, and as a result, the mutual influence among the punching stations canbe removed, and each punching station can work in a basically stable pressure range all the time; and moreover, the pressure maintaining time can be randomly controlled.

Description

technical field [0001] The invention relates to the technical field of stamping dies, in particular to a pressure control system for joint production of multiple stamping dies. Background technique [0002] At present, most of the domestic stamping die industry adopts the production mode of one press machine to produce a single part of a single set of molds or multiple sets of single parts of a mold with the same closed height of the mold. Factors such as specification errors, differences in machine tools, processing errors, and fluctuations in production conditions lead to unstable working gaps in each process, and mutual influence between stations. Stable; and the production method of multiple sets of molds with the same mold closing height will also cause the same problem due to different loads of each station, machine tool eccentric load, machine tool differences, machining errors, etc., which will result in low production efficiency. The high scrap rate and long mold r...

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Problems solved by technology

[0002] At present, most of the domestic stamping die industry adopts the production mode of one press machine to produce a single part of a single set of molds or multiple sets of single parts of a mold with the same closed height of the mold. Factors such as specification errors, differences in machine tools, processing errors, and fluctuations in production conditions lead to unstable working gaps in each process, and mutual influence between stations. Stable; and the production method of multiple sets of molds with the same mold closing height will also cause the same problem due to different loads of each station, machine tool eccentric load, machine tool differences, machining errors, etc., which will result in low production efficiency. The scrap rate is high, and the mold research and repair time is long, which causes a lot of cost waste and quality problems for mold manufacturing enterprises and automobile stamping plants

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