Processing method of riveting wire contacts in high-speed punching die

Abstract

Disclosed is a processing method of riveting wire contacts in a high-speed punching die. A multistation progressive die is adopted, and an elastic piece material strap fed into the multistation progressive die is subjected to the following processes sequentially: (1), at a first station of the multistation progressive die, punching a contact riveting hole in the elastic piece material strap which is fed in during die assembly; (2), at a second station of the multistation progressive die, feeding a contact wire into the contact riveting hole through in-die feeding during die assembly, cutting off a portion which is fed in, and preliminarily riveting on the contact riveting hole; (3), at a third station of the multistation progressive die, longitudinally riveting the contact riveting hole and the contact wire therein during die assembly; (4), at a fourth station of the multistation progressive die, transversely riveting the contact riveting hole and the contact wire therein during die assembly; (5), at a fifth station of the multistation progressive die, performing empty rivet detection on the contact riveting hole through a probe during die assembly; (6), at the rest stations of the multistation progressive die, completing elastic piece shaping through punching bending, shaping and stripping.

Description

technical field [0001] The invention relates to in-mold forming technology, in particular to a processing method for riveting wire contacts in a high-speed stamping die. Background technique [0002] Micro switches, keyboard switches, G3 waterproof switches, mouse switches, etc., often use shrapnel with riveted contacts. For the existing shrapnel, the common practice is to use a wire rod with a special-shaped cross-section as the contact material, cut it with an automatic cutting machine, and then weld it to the shrapnel material strip with punched positioning holes, and then use the stamping method to seal the shrapnel material strip. Do bending processing, the final shape is such as figure 1 Shown is the shrapnel 4 with contacts 41 . [0003] At present, the above-mentioned prior art has many processes, and it is impossible to complete the production of the shrapnel by continuous stamping on a single mold at one time, and two stampings must be done. [0004] Therefore, ...

AI Technical Summary

Problems solved by technology

[0003] At present, the above-mentioned prior art has many processes, and it is impossible to complete the production of shrapnel by continuous stamping on a single mold at one time, and two stampings must be done

[0004] Therefore, the above-mentioned prior art is prone to defects, which increases cost input, and the contacts must adopt a welding scheme, which increases power consumption and is prone to false welding

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