Method of manufacturing car axle case and car axle case manufactured by same

Abstract

The invention discloses a method for manufacturing a car axle case, which comprises the following steps of: A, blanking and making a flitch; B, downwardly punching the middle part of the flitch obtained in the step A; C, extruding two sides of the flitch by a hydraulic machine to upwardly bend the flitch; D, inwardly bending the end part of the upwardly bent flitch, and aligning two end parts of the bent flitch to each other; E, after aligning the two ends of the flitch to each other, cutting surplus burrs on the end parts of the flitch, and welding; F, mounting and welding spindle noses, and welding seal edges and plate spring frames; and G, obtaining the car axle case as a finished product. The method has the advantages of low manufacturing cost, simple manufacturing technology, once molding of product, few welding seams, high strength and rigidity of product, high qualification rate and small labor intensity of workers.

Description

Technical field: [0001] The invention relates to the technical field of manufacturing methods of automobile parts, in particular to a method for manufacturing an automobile axle housing and the automobile axle housing. Background technique: [0002] The automobile axle housing 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 is one of the main components of the driving system. The automobile axle housing and the driven axle bear the mass of the automobile together, and fix the axial relative positions of the left and right driving wheels. The suspension passes to the frame. [0003] The automobile axle housing should have sufficient strength and rigidity, low mass, and facilitate the disassembly and adjustment of the final drive. However, the current automobile axle housing is mostly assembled a...

AI Technical Summary

Problems solved by technology

The automobile axle housing obtained in this way has its main part welded by 7 components (2 half-bridge bodies, 4 connecting angle plates, and 1 axle housing). Type welds 9, 2 Y-shaped welds 9 are also formed on the rear view of the bridge body. In addition, a circular weld is also formed at the junction of the axle housing 7 and the bridge body 10, that is, the There are 5 welds in the main body, the manufacturing process is complicated, the steps are cumbersome, and the labor intensity is high

This structure leads to insufficient strength and rigidity of the automobile axle housing. When the finished product undergoes a pressure test, the pass rate is less than 85%, and re-welding is required. Moreover, this welding requires high technical standards for welders.

In addition, in the manufacturing method of the prior art, it is necessary to prepare multiple sets of components when blanking, resulting in the generation of leftover materials and excessive waste, resulting in waste of resources and increased production costs

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