Spoke molding method and device

Abstract

The invention discloses a spoke molding method and a spoke molding device. The spoke molding method comprises the following steps: arranging a cylindrical blank on a mold core of spinning equipment; clamping the peripheral wall part near the bottom end of the cylindrical blank with the mold core by using a lower clamping device; inwards spinning the peripheral wall near the top end of the cylindrical blank into a spoke top wall having a flat annular structure with a central hole by using a spinning device of the spinning equipment; removing the clamping of the lower clamping device on the cylindrical blank; clamping the annular flat top wall with the mold core by using an upper clamping device of the spinning equipment; spinning the peripheral wall part from the part below the top wall tothe bottom end of the cylindrical blank into a spoke peripheral wall which meets the requirement of shape and thickness by using the spinning equipment. In the molding method, the cylindrical blank is subjected to the spinning processing of the spoke top wall and peripheral wall on the spinning equipment in turn. Compared with the prior art, the method and the device save materials and greatly improve the production efficiency.

Description

technical field [0001] The invention relates to the technical field of manufacturing spokes for automobile wheels. Background technique [0002] The existing steel wheel spoke manufacturing process uses steel plates as raw materials, and the process mainly includes: blanking of steel plates into circular pieces—punching center holes and bolt holes—spinning contours by upper spinning machine—expanding bolt holes (multi-head drill Expand hinge) - deburring (car end face), etc. Because the blanking of the steel plate into steel discs and the punching will cause a large amount of waste, the material utilization rate of the existing manufacturing process is low, and the manufacturing cost is relatively high. [0003] In addition, a steel wheel spoke manufacturing process is disclosed in the publication specification of Chinese invention patent application with the publication number CN 101269456A. ​​The process of the process includes: first rolling the cylindrical blank into a ...

AI Technical Summary

Problems solved by technology

The spoke profile forming process in the above-mentioned manufacturing process requires 5 processes, and uses the rolling machine, electric saw, spinning machine, press, and spinning machine in sequence to replace 5 processing positions, although the use of cylindrical blanks improves the material quality. The utilization rate, but the processing process is too cumbersome, labor-intensive, and production efficiency is low

[0004] In addition, the existing spinning machines for forming steel spokes are all designed for steel disc blanks with central holes, such as a vertical spinning machine disclosed in the Chinese utility model patent specification of the authorized announcement number CN 201283385Y. CNC powerful spinning machine, not suitable for processing cylindrical blanks

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