Forming equipment for axle head of drive axle housing

Abstract

The invention relates to a forming method and a forming device for an axle head of a driving axle housing. The forming method comprises heating two ends of a metal tube blank, and then upsetting the two ends of the tube blank to thicken local tube walls of the two ends of the tube blank; after the upset tube blank is cooled, performing once reducing on both ends of the tube blank, wherein the once reducing comprises: after heating the two ends of the tube blank to a preset temperature field, driving a first mold core with a predetermined shape to predetermined positions in the two ends of the pipe blank; pushing an once reducing die to extrude the two ends of the tube blank, such that the two ends of the tube blank are reduced to form predetermined shape profiles; pulling the first mold core out of the two ends of the tube blank, wherein the first mold core can perform inner cavity shaping on the two ends of the tube blank; and withdrawing the once reducing die. Under a premise of ensuring that the axle head and the axle housing are integrated, an inner cavity of the axle head is through and flat, a die attaching property of an appearance of the axle head is improved, a metal streamline of the inner cavity of the axle head is combed, and the shape and size precision and mechanical property of the axle housing are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of non-cutting processing and forming of metal profiles, and more specifically, relates to a forming method and forming equipment for the axle head of an integral drive axle housing, that is, it involves making seamless steel pipes through upsetting under the condition of variable temperature field. , extrusion, internal shaping and other processes to complete the processing method of the axle heads at both ends of the overall drive axle housing of the automobile and the forming equipment used for processing. Background technique [0002] The drive axle is one of the three major assemblies of the car that is comparable to the engine and the cab. It bears the full spring load of the car and the plumb force, longitudinal force, and lateral force given by the ground through the wheels, frame or load-bearing body through the suspension. Forces and their moments as well as shock loads; the transaxle also transmit...

AI Technical Summary

Problems solved by technology

However, the shape of the shaft head with variable cross-section and stepped shaft shape and the straightness of the inner cavity often make it difficult to guarantee the shape and dimensional accuracy of the shaft head

Especially the inner cavity of the shaft head, the existing solutions often make the inner cavity appear a little undulating surface, which is not completely straight through and straight, and subsequent machining is still required to eliminate defects

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