Process for manufacturing steel spoke

Abstract

The invention relates to a manufacturing technique of a steel wheel rib, which adopts cylinder stock to replace the traditional sheet. The manufacturing technique adopts the technique steps that: the cylinder stock is prepared; the cylinder stock is rolled on a roll forming machine to form a cup in-process material with symmetric axial direction, big diameter at two ends and small diameter at a middle groove; the cup in-process material is cut off at the centre to form two same bowl in-process materials; the bottoms of the bowl in-process materials on a spinning machine are spin-formed to a plane, so as to ensure the whole workpiece to be a bowl intermediate product; a central technique hole is punched; a transition curved segment and a tangential path are spun; a central hole / a bolt hole and a wind-punching hole are punched; the lathe work includes central hole processing / a plane / an excircle / an end plane mounting, letter pressing and other working procedures. The cylinder stock can be directly prepared with a steel pipe, and also with a steel belt circle / welding technology. Compared with the traditional manufacturing technique, the manufacturing technique for the steel wheel rib can avoid the steel plate at the periphery of blanking disc type stock from wasting material, and reduce the waste material generated from the pre-punching central hole working procedure, thereby greatly improving the utilization ratio of the material.

Description

technical field [0001] The invention relates to the manufacturing technology of automobile wheels, which is a manufacturing process of steel wheel spokes. Background technique [0002] Steel wheels are the wheels that are widely used in automobiles, especially on trucks. Steel wheels generally consist of two parts, the rim and the spokes, which are manufactured separately and then combined and welded together. The geometric structure of the spokes is composed of a mounting plane, a transition curve segment and a straight line segment, and the mounting plane is fixed together with the hub of the automobile with bolts. The center hole and bolt hole are processed on the installation plane of the spoke, the straight section is welded with the rim, the transition curve section plays the role of connecting the installation plane and the straight section, and the transition curve section is processed with air holes. The traditional manufacturing process of wheel spokes is to use ...

AI Technical Summary

Problems solved by technology

Although after scientific layout, the material utilization rate of the blanking process is still only about 77.8% because the steel plates around the blanking disc-shaped blank become waste, and the material utilization rate is even lower when the waste generated by the pre-punching center hole process is added.

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