Tapered Surface Drawing Die in Cage Forming Process

Abstract

The invention relates to a conical surface drawing die for retainer forming technology. The conical surface drawing die comprises a base, a plurality of drawing and expansion slide blocks and a conical push block, wherein the conical push block sequentially comprises a frustum-shaped drawing and expansion part and a columnar guide part in a coaxial way; a guide hole is formed in the center of the base; a shaft of the conical push block is glidingly connected with the interior of the guide hole through the guide part; the drawing and expansion slide blocks are uniformly distributed around the guide hole in the upper end of the base along the circumference direction, and are glidingly connected with the base along the radial direction of the guide hole; one end of each drawing and expansion slide block is abutted against the drawing and expansion part of the conical push block. The conical surface drawing die has the beneficial effects that the new processing technology of a retainer is well matched, so a circular pipe-shaped workpiece can be formed into a conical pipe-shaped workpiece by one step in the new process, the workpiece can be automatically centered on the die, the operation is simple and convenient, and the efficiency is high; as the workpiece can be stably positioned and is uniformly stressed on the die, the drawn workpiece has higher processing accuracy.

Description

technical field [0001] The invention relates to a cone stretching technology in the cage forming process, in particular to a cone stretching die in the cage forming process. Background technique [0002] There are such defects in the processing method of the bearing cage. First, the material is cut into a circle, and there are many discarded scraps, which cause serious material waste and low raw material utilization rate, which is only 12-25%. The designed structure needs to be realized by cutting. It not only increases energy consumption but also increases material consumption, and also increases the occupation time of the product manufacturing process, so that the production efficiency is low and the production cost is high. [0003] If a new processing technology is provided for the improvement of the cutting shape of the raw material, the matching of the corresponding mold is required. For example, the raw material is first cut into a rectangular shape, which will great...

AI Technical Summary

Problems solved by technology

[0002] There are such defects in the processing method of the bearing cage. First, the material is cut into a circle, and there are many discarded scraps, which cause serious material waste and low raw material utilization rate, which is only 12-25%. The designed structure needs to be realized by cutting. It not only increases energy consumption and material consumption, but also increases the occupation time of the product manufacturing process, making the production efficiency low and the production cost high

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