Operation method for spot-welding flange plate tool of axel shell

Abstract

The invention discloses an operation method for a spot-welding flange plate tool of an axel shell, and belongs to the field of automotive parts. According to the method, firstly, a small flange is arranged on a welding position of an axle shell body in a sleeving mode, and is lifted to a welding tool station; then a central positioning mechanism is used to perform the center positioning on the axle shell body; a second cylinder is manually pushed to make a piston rod of the second cylinder align with a threaded hole on the small flange; a controlling button is operated to make the piston rod of the second cylinder continuously extend and pneumatically clamp the small flange; then the small flange is clamped firmly by a manual clamp; finally, a handle on a compressing mechanism is held withhands to turn over a rotating arm; an air chamber bracket of the axle shell body is compressed by a compressing block; and the small flange is welded after the positioning is completed. According tothe technical scheme, the central positioning of the axel shell body is achieved by controlling the central positioning mechanism; the positioning is accurate, simple, and convenient; and meanwhile, the welding positioning of the small flange is accurate, and the positioning efficiency of the small flange is high.

Description

technical field [0001] The invention relates to the technical field of automobile parts manufacturing, and more specifically relates to an operation method of a spot welding flange tooling for an axle housing. Background technique [0002] figure 1 Shown is a schematic diagram of an automobile axle housing (automobile transaxle housing). The automobile axle housing is one of the main load-bearing components of the automobile. Its main functions are: supporting and protecting the final drive, differential and axle shafts, etc., so that the axial relative positions of the left and right driving wheels are fixed; it is supported together with the driven axle The quality of the frame and its components. When the car is running, it bears the road surface reaction force and moment transmitted from the wheels and transmits it to the frame through the suspension. The automobile axle housing should have sufficient strength and rigidity and low mass, and it should be easy to disass...

AI Technical Summary

Problems solved by technology

[0003] The current production process methods mainly include manual positioning welding and automatic welding, but both encounter the problem of rapid positioning between the flange plate and the axle housing, which affects the production efficiency and product quality.

Moreover, the current axle housing flange spot welding tool basically maintains the technology at the end of the last century. Every time a worker clamps a product, he needs to align the semi-finished axle housing weighing about 100kg with the fixed reference position on the tooling, which is not only inefficient , and the labor intensity of the workers is high, and the deviation of the functional dimensions of the welded products is also large

[0004] After searching, the Chinese patent application number: 2018202553402, the application date: February 13, 2018, the name of the invention is: a press-fit welding device for the flange of the rear axle housing of the automobile, the application discloses a rear axle housing of the automobile The flange press-fit welding device solves the problems of many procedures in the flange press-fit process of the existing automobile rear axle housing, the installation efficiency is low, and the welding accuracy of the flange cannot be guaranteed, including the combined bed, welding mechanism and clamping The technical points of the mechanism are: the combined bed is composed of the main bed and the side bed, the middle part of the upper surface of the main bed is provided with a lifting and clamping mechanism for limiting and smoothing the rear axle housing, and a rotating mechanism with adjustable feed stroke It includes a hydraulic feed unit and a rotary drive unit. The upper surface of the side bed is equipped with a welding mechanism; the clamping mechanism includes a self-centering clamping mechanism and a lifting clamping mechanism. Adjust the lifting clamping mechanism so that the flange axis and the axle housing tube The axes are on the same centerline

Its structural design is reasonable, the process flow is simplified, the assembly positioning is accurate, and the welding deformation is easy to control. While ensuring the accuracy of the flange mounting surface, it reasonably reduces the processing cost, improves the quality of the finished product and the production efficiency, thereby ensuring driving safety. The welding device is suitable for press-fit welding of flanges, but not for spot welding and positioning of flanges on the axle housing

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