Forming device and forming process of axle housing of automobile drive axle

Abstract

The invention discloses a device and a process for forming an axle housing of an automobile drive axle, and relates to the field of machining of the axle housing of the automobile drive axle. By adopting sold particles as formation mediums, the device is simple in sealing and can be formed through thermal expansion; the outer side wall of a pipe blank is adhered with the inner side walls of a leftstraight arm forming cavity and a right straight arm forming cavity; the inner side wall of the pipe blank is adhered with the outer side wall of a material transferring tube; an upper discharging hole and a lower discharging hole are formed in the side wall of the material transferring tube; the upper discharging hole is opposite to an upper half-arc concave cavity of a pipa-shaped bag forming cavity; the lower discharging hole is opposite to a lower half-arc concave cavity of the pipa-shaped bag forming cavity; and because an upper discharging hole and a lower discharging hole of the material transferring tube are arranged in the way, the solid particles only participate in formation of a pipa-shaped bag, so that the excessive thinning phenomenon of a straight arm part as well as frontand rear cover parts of the axle housing can be effectively avoided.

Description

technical field [0001] The invention relates to the field of processing and manufacturing of automobile drive axle housings, in particular to a forming device and a forming process for automobile drive axle housings. Background technique [0002] The axle housing of the automobile drive axle is the basic part for installing the main reducer, differential, half shaft, wheel hub and suspension. Its main function is to support and protect the main reducer, differential and half shaft. At the same time, the axle housing of the automobile drive axle is one of the main components of the driving system and a key component to ensure the normal driving of the automobile. The traditional casting axle housing has a large total weight, low bending strength and impact strength, complicated process and low production efficiency. There are many weld seams in stamped and welded axle housings, and there are many defects in the weld seams, and the performance cannot be controlled. In recent...

AI Technical Summary

Problems solved by technology

However, solid particles are used instead of hydraulic oil as the forming medium to form the automobile drive axle housing. During the forming process, under the action of solid particles, the straight arm part of the axle housing and the front and rear cover parts will appear transitional thinning phenomenon.

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