Bayonet-tube type rear axle shell assembly and machining technology thereof

Abstract

The invention belongs to the technical field of micro automotive machining, and particularly relates to a bayonet-tube type rear axle shell assembly. The bayonet-tube type rear axle shell assembly comprises a rear axle cladding shell and a half-axle sleeve assembly, and the half-axle sleeve assembly comprises a first half-axle sleeve, a second half-axle sleeve and two half-axle sleeve flanges. The invention further provides a machining technology of the bayonet-tube type rear axle shell assembly, and the machining technology comprises the steps that the half-axle sleeve assembly is machined firstly, then the half-axle sleeve assembly and the rear axle cladding shell are subjected to press fitting, small attachments and a shell rear cover are welded, then bearing holes and oil seal holes of the half-axle sleeve flanges are machined, and finally the rear axle shell assembly is subjected to deburring, welding slag removing and paint spraying. The rear axle shell assembly part is regular in shape, mold shaping is easy and convenient, the half-axle sleeves at the two ends are combined with the rear axle cladding shell together through press fitting, the machining method is simple and reliable, and manufacturing and machining are easy; and the machining technology is simple, the number of adopted equipment tools is small, stamping and welding processes are few, equipment investment is greatly reduced, and the application range is wider.

Description

technical field [0001] The invention belongs to the technical field of micro-car processing, and in particular relates to a tube-type rear axle housing assembly and its processing technology. Background technique [0002] At present, the rear axle housing assemblies used in mini-cars are mostly composed of half-shaft flanges, bridge tubes, upper rear axle casings, lower rear axle casings, interface flanges, housing back covers and some axle casings. Small accessories are welded into blanks. Then the bearing holes at both ends are processed by a CNC lathe, and the middle rear axle package is processed by a machining center to become a finished product. This kind of stamping and welding type axle housing has trivial parts, difficult stamping and many molds are needed; the tooling is complicated during forming and welding, the processing procedures are many, the equipment investment is large, and the whole bridge has many welds, and the axle housing is prone to deformation and...

AI Technical Summary

Problems solved by technology

This kind of stamping and welding type axle housing has trivial parts, difficult stamping and many molds are needed; the tooling is complicated during forming and welding, the processing procedures are many, the equipment investment is large, and the whole bridge has many welds, and the axle housing is prone to deformation and leakage during production. Gas and other problems cause a large number of waste products, resulting in huge waste and loss of profits

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