Forging forming process for vehicle flange type universal joint sliding sleeve blank

Abstract

The invention discloses a forging forming process for a vehicle flange type universal joint sliding sleeve blank, and belongs to the technical field of forging. According to the forging forming process for the vehicle flange type universal joint sliding sleeve blank, a pre-shearing ball net is arranged in an extrusion area of a forging coarse material of a flange structure; after reverse extrusionbarrel forming treatment is finished, the pre-shearing ball net is just positioned near the contact part of an excess material block and the forging coarse material of the flange structure, and by being matched with the operations of heating for temperature rise and quick cooling, the pre-shearing ball net can be cracked under the action of sharply increased expansion extrusion force of vaporizedwater in the pre-shearing ball net, so that a plurality of holes are formed in the joint of the excess material block and the forging coarse material of the flange structure, and the connecting strength of the excess material block and the forging coarse material is reduced. Semi-automatic falling of the excess material block can be realized after reverse extrusion barrel forming treatment by being matched with single-side knocking operation, workload for treating the excess material block in the later period is reduced, and material waste can be remarkably reduced.

Description

technical field [0001] The invention relates to the technical field of forging, and more specifically, relates to a blank forging and forming process of a flanged universal joint sliding sleeve for a vehicle. Background technique [0002] In automobile production, in order to transmit power at a constant speed, a constant velocity universal joint is required. The sliding sleeve is an important component of the slip end of the constant velocity universal joint, which is used to connect the automobile gearbox and the constant velocity drive shaft. The constant velocity universal joint is a mechanism that can transmit motion and torque when the main and driven shafts have angular displacement. The constant velocity universal joint flange in the prior art includes the shell and the flange part on the shell. Its interior is composed of an inner spherical surface and ball grooves uniformly distributed longitudinally on the spherical surface. The spherical surface forms a double e...

AI Technical Summary

Problems solved by technology

[0004] When the existing flange-type universal joint sliding sleeve is forged, the finished product always has residual material at the bottom. The residual material will not only cause material waste, but also need to be processed after forming. Cutting and grinding will virtually increase the workload of the staff, making the overall manufacturing efficiency of the flanged universal joint sliding sleeve lower

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