Combined hub and hub machining method

Abstract

The invention discloses a combined hub which comprises a rim and a spoke which are arranged in a split mode, an insert is arranged on the inner surface of the rim in a protruding mode, the insert andthe rim are relatively fixed into a whole, the spoke is formed by casting on the basis of the rim, the insert is wrapped in the spoke, and the spoke and the rim are fixed into a whole after cooling and solidification. The rim and the spoke are independently machined, the rim is machined firstly, then the spoke is machined on the basis of the rim in a casting mode, and the integration of the rim and the spoke forms the hub. The hub of a split structure is adopted, when defects occur on the rim, the whole hub does not need to be scrapped, the rate of finished products can be increased, and compared with a welding forming mode, the number of machining procedures is reduced. By means of the hub machining method, the combined hub can be machined, and the same technical effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of wheels, and further relates to a combined wheel hub. In addition, the invention also relates to a wheel hub processing method. Background technique [0002] There are usually two kinds of processing technology for the front wheel hub of the existing electric moped, one is the cast aluminum hub, the aluminum alloy is integrally cast and formed, and the whole is made of aluminum alloy; the other is the welded iron hub, which adopts spinning Formed rims, stamped and stretched spokes, brake pads, brake bowls, pipes, etc. are welded and fixed. [0003] Due to factors such as casting pressure and molds during the production process of cast aluminum wheels, the rim is prone to problems such as porosity defects. The air hole problem can only be detected after the gold processing of the product. The small air hole can still be repaired, and the large air hole can only be scrapped, and the production cost is high...

AI Technical Summary

Problems solved by technology

[0003] Due to factors such as casting pressure and molds during the production process of cast aluminum wheels, the rim is prone to air hole defects and other problems

Pores can only be detected after metal processing of the product. Small pores can still be repaired, but large pores can only be scrapped, and the production cost is high.

[0004] The welded iron hub is composed of rims, spokes, brake pads, brake bowls, pipes and other accessories, which are independently stamped and then welded together. The production process is complicated, and all kinds of accessories need to be welded and fixed. There are many welding points in the product, which affects the appearance of the product; Residual stress will be generated after welding to affect material properties and reduce material strength

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