Silicon steel sheet punching die blade blocks and processing technique

Abstract

The invention discloses a stamping die edge block for silicon steel sheets and a processing technique thereof. The processing technique of the edge block comprises planning-milling and linear cutting procedures. In addition, in the whole process flow, the common dimensions of the edge block are firstly processed and then the critical dimensions of the edge block are processed. The stamping die edge block for silicon steel sheets has a wider main body in replacement of the long and narrow body of the prior edge block. In addition, the bland of the die edge block is proportioned in singe piece, thus reducing the release of the total stress and deformation correspondingly. The stamping die edge block for silicon steel sheets and the processing technique thereof can better solve the problem of stress release and ensure the machining precision of the die edge block, thereby ensuring that high quality silicon steel sheets are produced through the die edge block.

Description

technical field [0001] The invention relates to a punching die for a silicon steel sheet, more specifically, to a blade block for a punching die for a silicon steel sheet and its processing technology. Background technique [0002] In the field of stamping dies, a pair of molds is generally divided into a punch and a die. Both the punch and the die contain blades. The punch blade matches the die blade. The raw material placed on the die is stamped into parts by the cooperation of the die block and the die block. It can be seen that the machining accuracy of the die block (convex die block and die die block) is of great importance to the quality of the punched parts. It is extremely important to say. Some current motors require electrode silicon steel sheet 1 ( figure 1 As shown), the precision of the electrode silicon steel sheet 1 directly affects the quality of the motor, and the electrode silicon steel sheet 1 is punched by a stamping die, so the precision of the blade ...

AI Technical Summary

Problems solved by technology

[0003] In production practice, the above three characteristics of the mold blade block 5 and its process have shown shortcomings, which have affected its accuracy: 1) Because the material blank of the mold blade block 5 is a multi-piece series, so the early machining, transportation and heat treatment The internal stress generated during the process is not easy to release, so that the excessive stress is released together during wire cutting, which increases the deformation

2) Because the shape of the mold blade block 5 is all completed by the wire cutting machine, the stress release is irregular and easy to deform; 3) Because the shape of the mold blade block 5 is arc-shaped, the middle width is small, and the workpiece is narrow and long, the stress during processing The deformation caused by the release will be much larger than the deformation caused by the non-slender workpiece, which is difficult to solve by processing technology

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