Press machine air pad ascending and descending control device and method based on power failure protection

Abstract

The invention relates to a press machine air pad ascending and descending control device based on power failure protection, and belongs to the technical field of a plate material forming press machine. The press machine air pad ascending and descending control device comprises an air pad jacking cylinder, an air storage tank and a control air source, wherein a high-pressure air inlet air path and a low-pressure air inlet air path are connected between an air outlet of the air storage tank and a lower cavity of the air pad jacking cylinder; a high-pressure air inlet valve is arranged on the high-pressure air inlet air path; a low-pressure air inlet valve is arranged on the low-pressure air inlet air path; the control air source is respectively connected with the high-pressure air inlet valve and the low-pressure air inlet valve through a high-pressure air inlet control valve and a low-pressure air inlet control valve, and the low-pressure air inlet control valve is a two-position five-way double-electric-control self-maintaining electromagnetic valve. The invention also discloses a press machine air pad ascending and descending control method based on power failure protection. The device and the method have the advantages that an air pad is enabled to be always in an ascending jacking state in the mold debugging process, and the misoperation possibility of the air pad is reduced to minimum, and the potential safety hazards in the mold debugging process can be eliminated, and the safety of the mold debugging personnel is ensured.

Description

technical field [0001] The invention relates to a sheet material forming press, in particular to a press air cushion lifting control device and method based on power failure protection. Background technique [0002] At present, in the manufacturing and debugging process of press molds, most mold manufacturers use hydraulic presses for mold factory commissioning, and molds are used for mechanical presses in actual production after they leave the factory. There are great differences in working conditions such as working speed and working speed. Therefore, the mold must be debugged on-site before normal production. In addition, the automatic production press does not allow personnel to carry out mold debugging, inspection and other operations in the slider, and automobile manufacturers also need to re-adjust the mold to meet the introduction of new models. Under the existing conditions, the basic workflow adopted by automobile manufacturers for mold debugging is as follows: st...

AI Technical Summary

Problems solved by technology

It takes a long time to prepare for mold debugging with this method, and there are the following safety risks: During the mold debugging process, the air cushion may accidentally drop due to various reasons, resulting in injury to the mold debugging personnel; after the mold debugging is completed, if the work error is not taken out of the lower molding material ring The jack between the mold bottom plate and the mold will cause pressure damage to the mold and cause major economic losses

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