Mould machining method and system

Abstract

The invention relates to the technical field of moulds and discloses a mould machining method and system. The mould machining method comprises calculating numerical control data according to the mould machining technical process; performing correction on the numerical control data according to the characteristics of changes of the profile of a mould; obtaining the mould according to the corrected numerical control data. According to the mould machining method and system, profile grinding match workloads of bench workers in the mould machining process and the error produced when the profile is manually finished can be reduced and the accuracy of the profile of the mould can be improved.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a mold processing method and system. Background technique [0002] With the development of automobile molds, the quality requirements of users for molds are constantly improving, and stamping manufacturers have higher and higher requirements for the precision of mold surfaces. The existing processing technology needs to increase a large number of manual adjustments, especially for forming. The surface of the stretching process must be manually researched and matched during debugging, and the precision of the mold is easily lost during manual research and matching. For example, there are peaks and troughs in the mold after tool machining, and due to local mutations in the machining process, the mold surface after actual machining cannot fully meet the theoretical smoothness requirements. Or the local gap is too large or too small during the blue oil inspection, resulting in uneven ...

AI Technical Summary

Problems solved by technology

[0002] With the development of automobile molds, the quality requirements of users for molds are constantly improving, and stamping manufacturers have higher and higher requirements for the precision of mold surfaces. The existing processing technology needs to increase a large number of manual adjustments, especially for forming. The surface of the stretching process must be manually researched and matched during debugging, and the precision of the mold is easily lost during manual research and matching.

For example, there are peaks and troughs in the mold after tool machining, and due to local mutations in the machining process, the mold surface after actual machining cannot fully meet the theoretical smoothness requirements. Or when the blue oil inspection occurs, the local gap is too large or too small, resulting in uneven coloring, that is, the problem of hard spots on the surface

For another example, due to the existence of elastic strain and plastic strain in the stamping process of the plate, the plate can reach the plastic strain from the elastic strain only when the external force reaches a certain limit, but there will always be some areas that cannot completely achieve plastic deformation, resulting in pressure release. After that, the shape of the part does not match the theoretical value, that is, the springback problem of the part

These problems are all caused by the fitter's manual research and matching, which affects the accuracy of the mold, and the accuracy and quality of the stamping parts are difficult to guarantee.

Moreover, due to the manual correction and lack of processing data during the later mold rectification, the second rectification will be very time-consuming and laborious, which is not conducive to ensuring the quality of the mold

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