Torsion spring forming process

Abstract

The invention relates to the technical field of spring manufacture, in particular to an irregular torsion spring forming process which solves problems of complex working procedures and large energy consumption caused by multiple heating forming or multiple working procedure forming of a torsion spring not capable of being formed in one time. In the torsion spring forming process, continuous operation of all torsion spring structural elements including camber front end forming and winding section forming are conducted through blanking, unique devices and process, defects of material degradation and large energy consumption caused by multiple heating and multiple working procedure forming of large-specification torsion springs are overcome, and the purpose of high forming accuracy of torsion spring head and tail ends and production efficiency is achieved.

Description

technical field [0001] The invention relates to the technical field of spring manufacturing, in particular to a torsion spring forming process. Background technique [0002] Generally, the first and last ends of the torsion spring are equipped with auxiliary ends such as gear levers and limit sections. Small-sized torsion springs can be processed at one time, while the processing of large-size torsion springs and special-shaped torsion springs requires multiple processes. Generally, the winding part is formed first, and then the auxiliary ends at both ends are shaped separately. During this period, multiple times of heating are required. After many times of helpless heat treatment, the material changes and the energy consumption increases greatly. Most of the existing torsion spring processing equipment and devices are suitable for the forming of small-sized torsion springs or cannot avoid the above-mentioned defects in the manufacture of large-sized torsion springs, and the...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of complex process and high energy consumption caused by repeated heating or multi-process forming of the torsion spring that cannot be formed at one time, and to provide a torsion spring forming process with reasonable process design. The fixed mandrel in the inner hole and the front-end swing mold in the auxiliary device form the ends of various shapes of the torsion spring first, and then enter the winding section for forming, and the process is completed in one go.

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