Automobile drive axle housing and manufacturing technology and manufacturing mold of automobile drive axle housing

Abstract

The invention belongs to the technical field of automobile manufacturing and provides an automobile drive axle housing and a manufacturing technology and a manufacturing mold of the automobile drive axle housing. The manufacturing technology comprises a blanking process, a thickening process, a shifting process, a hydraulic molding process, an aging process, a finish machining process, a welding process, a drilling process and a coating process. According to the automobile drive axle housing and the manufacturing technology and the manufacturing mold of the automobile drive axle housing, by additionally arranging the thickening process, the shifting process and the hydraulic molding process, the welding positions of the automobile drive axle housing and the juncture number of parts are reduced, so that the finish machined axle housing is of a structure formed integrally; the problems of stress concentration and cold joint caused by the welding process are avoided, the finished product sealing performance of the whole axle housing is ensured, and occurring of the oil leakage phenomenon is reduced; in addition, by means of the structure formed integrally, the strength of the automobile drive axle housing can be improved, fracture is prevented, and the reliability of the whole automobile drive axle housing is improved; accordingly, the axle housing is light in weight, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing, and in particular relates to an automobile drive axle housing, a manufacturing process and a manufacturing mold thereof. Background technique [0002] The drive axle housing is one of the main parts of the car. The drive axle housing plays the role of supporting the load of the car and transmitting the load to the wheels. The existing drive axle housing such as figure 1 As shown, it includes the first gear casing 101 and the second gear casing 102 that are interlocked with each other. There is a final drive installation hole between them, and the two end faces of the final drive installation hole are respectively connected to the final drive shell. Gasket 104, rear main reducer cover 105, and the two ends of the first gear cladding 101 are respectively connected with steel pipes 103; the existing automobile drive axle housing usually manufactures various parts through molds, and...

AI Technical Summary

Problems solved by technology

Adjacent parts of this structure are connected by welding. Since the welding process itself is prone to problems such as stress concentration and false welding, the joint may cause oil leakage or even breakage, resulting in failure of the whole vehicle; and the assembly of each part is cumbersome. , increase the process flow, and reduce assembly efficiency; at the same time, due to the large number of parts with this structure, the number of molds increases and the manufacturing cost increases

[0003] Now the hydraulic forming of the axle housing is also gradually starting to be used, but the current hydraulic forming process causes the wall thickness of the thickening section to be too thin, the strength and reliability cannot be fully guaranteed, and the life of the axle housing is short

Images