A method for processing and controlling deformation of a double-half-tube mandrel-type knockout mold

Abstract

The invention provides a machining and deformation control method of a double-half-tube mandrel type knock detection die. The method is characterized in that the special machining process of the double-half-tube mandrel type knock detection die is introduced, a stress release control step and a step for eliminating deformation generated in machining are added after a step for removing a large number of materials and a thermal processing step, and the final deformation of the tool is controlled to be in a range of + / -0.05mm. The method has the advantages that the problem that a tool fitting face is uncoordinated with a tool profile due to the fact that an original process adds an additional block and removes the additional block after the machining is solved; compared with the original method, the method can reduce machining errors to 1 / 3, can satisfy yield requirements, can reduce needed machining material and can greatly lower cost.

Description

technical field [0001] The invention relates to a method for processing and controlling deformation of a double-half-pipe mandrel-type knocking and inspection mold. This type of tooling is used for knocking, repairing, processing and inspection of half-pipe parts. Background technique [0002] Such as figure 1 and figure 2 As shown, this type of knocking mold is composed of 01# carcass I and 02# carcass II. When using it, it is used as a processing tool to knock and repair the corresponding 01# part I and 02# part II respectively. After the processing is completed, assemble the 01# carcass I and the 02# carcass II together to check the correctness of the part shape and outer contour, and also check whether the processed part I and part II can match. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a more reasonable processing scheme, reduce the torsion and warpage of the double-half-tube mandrel type knocking d...

AI Technical Summary

Problems solved by technology

Due to the stress release and heat treatment in the process of processing, the tooling will cause various trends of deformation, such as warping, torsion, etc., making it impossible for the two parts of the tooling to fit together when using the inspection function. Although the supplementary bottom plane can meet the processing function of a single part, However, it cannot meet the positional relationship between the fitting surface and the profile surface, and can only perform a rough inspection function with limited accuracy, which cannot meet the accuracy requirements of the new generation of products.

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