Cavity curved surface dynamic quick construction method based on approximate curvature

Abstract

The invention discloses a cavity curved surface dynamic construction method based on approximate curvature. The input cavity curved surface is constructed by a flexible base body device; normalized parameters of a base body structure in the flexible base body device are input; the flexible base body device is composed of a plurality of base body structures, each base body structure comprises a base body top end and a base body lower end, and the base body top ends can be replaced; solving approximate curvatures of different positions on the curved surface of the cavity; and the flexible base body device is dynamically constructed according to the plane dimension and the normal dimension of the cavity curved surface, the top of the dynamically constructed flexible base body device is machined and trimmed, and the mold cavity curved surface structure is obtained. According to the method, the base body structures and the top ends of different specifications can be dynamically selected for construction according to the curvature change of the cavity curved surface, and the method has the advantages of being quick in combination and convenient to adjust and is suitable for personalized and diversified mold cavity curved surface construction requirements.

Description

technical field [0001] The invention relates to a mold curved surface construction method, in particular to a cavity curved surface dynamic construction method based on approximate curvature. Background technique [0002] Mold manufacturing is the foundation of equipment manufacturing industry. In our country, three-quarters of the rough-processed product parts, half of the finished product parts, and the vast majority of plastic products are processed by molds. And mold manufacturing is the top priority of the mold industry. In the traditional manufacturing industry, the mold manufacturing process is mainly based on mechanical processing, and its steps include mold blanking, refurbishment and assembly. The processing cycle is often long and the cost is also high. When the shape of the part targeted by the mold is relatively complex, especially the cavity surface part, the production efficiency of the mold will be reduced. [0003] At present, under the background of "Int...

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Problems solved by technology

[0005] (1) The traditional mold manufacturing process includes blanking, trimming, assembly, etc., and the production cycle is long;

[0006] (2) Defects in the manufacture of complex cavity curved surface parts cannot be completed, and the production efficiency is low;

[0007] (3) The cost of mold production is high, and it often needs to be sold in large quantities to recover the cost, which cannot be applied to small batch production and personalized production

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