High-precision punching mould processing technology

Abstract

The invention relates to a high-precision punching mould processing technology. The high-precision punching mould processing technology includes the following steps: (1), performing semi-finishing on knife edges of a mould and a mould core through a machine tool, and performing finish machining on guide post holes through the machine tool; (2), arranging the mould core on a mould base; (3), arranging guide posts in the guide post holes; (4) performing finish machining on the knife edges of the mould and the mould core through the machine tool to obtain a high-precision punching mould. Compared with the prior art, the high-precision punching mould processing technology can narrow an installation error of a mould positioning reference, can improve the positioning precision, and can prolong the service life of the knife edges.

Description

technical field [0001] The invention relates to a mold processing technology, in particular to a high-precision punching mold processing technology. Background technique [0002] Punching dies are often used in the mold industry, such as sheet metal forming dies, felt forming dies, felt dies and so on. However, at present, there are certain positioning references (guide pillars, guide sleeves, fine positioning) and punching knife edge positioning in the manufacturing process of such molds, which are not accurate enough, or there are problems such as secondary positioning errors, multiple positioning and assembly engineering. The positioning reference of the punching die, (guide post and guide sleeve, fine positioning) has two problems in the traditional process. One is the process arrangement. The traditional process arrangement method is: mold base, mold core, guide post and guide sleeve respectively Machining is done and then assembled. The second is the processing metho...

AI Technical Summary

Problems solved by technology

However, at present, there are certain positioning references (guide pillars, guide sleeves, fine positioning) and punching knife edge positioning in the manufacturing process of such molds, which are not accurate enough, or there are problems such as secondary positioning errors, multiple positioning and assembly engineering. The positioning reference of the punching die, (guide post and guide sleeve, fine positioning) has two problems in the traditional process. One is the process arrangement. The traditional process arrangement method is: mold base, mold core, guide post and guide sleeve respectively Finished, then assembled

The second is the processing method of the positioning reference: the hole of the guide post and guide bush is processed through the boring process. It is not difficult to see the problem in the above. There is an installation error in this way, and the existence of the error leads to the matching of the knife edge of the mold. First, there is an uneven knife edge fit, that is, the force of the knife edge is unbalanced when the mold is closed, resulting in uneven contact gap of the knife edge. Uniformity, which makes the edge of the die-cut product at the edge of the die not uniform, affecting the quality of the edge of the product

At the same time, it also greatly reduces the expected life of the tool

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