Positioning clamp applied to automatic welding equipment for inner seams of drive axle housing rear cover

Abstract

The invention discloses a positioning clamp applied to automatic welding equipment for inner seams of a drive axle housing rear cover. The positioning clamp comprises a base, four positioning air cylinder assemblies which are fixedly mounted on the base and are uniformly distributed along the periphery of the base, four jacking air cylinders, a rear cover positioning ring assembly arranged on the base, and a fixing mechanism arranged on the base for preliminarily fixing the drive axle housing rear cover; axle centers of the four positioning air cylinder assemblies are at equal altitude for guaranteeing height of the inner seams of the drive axle housing rear cover to be consistent; the rear cover positioning ring assembly is used for guaranteeing positions of the inner seams of the drive axle housing rear cover and concentricity of the rear cover; and the four jacking air cylinders and the four positioning air cylinder assemblies are arranged in a spaced mode. The positioning clamp is reasonable in design, is simple in structure, can be used for clamping and positioning the drive axle housing rear cover, realizes manual workpiece loading and unloading, automatically positions and clamps the workpieces, meets consistency of positions of welding seams of the rear cover after the workpieces are clamped, and has a very good practical effect and a very good commercial value.

Description

technical field [0001] The invention relates to the field of automatic welding equipment for the inner seam of the rear cover of the drive axle case, in particular to a positioning fixture applied to the automatic welding equipment for the inner seam of the rear cover of the drive axle case. Background technique [0002] In medium and heavy vehicles, the drive axle housing is the carrier that supports the load of the vehicle, bears the reaction force and moment from the road surface transmitted by the wheels, and transmits it to the frame (or body) through the suspension. It plays an important role, and its manufacturing quality has a direct impact on the quality of the whole bridge and even the whole vehicle. The oil leakage and oil seepage phenomenon of the welding seam of the rear cover of the drive axle has always been one of the common problems in the manufacture of the axle housing. Due to oil leakage and oil leakage from the welding seam of the rear cover of the axle...

AI Technical Summary

Problems solved by technology

[0004] 1) Welding quality problems caused by unclean workpiece surface or welding torch angle deviation;

[0005] 2) Welding quality problems caused by unreasonable welding process parameters;

[0006] 3) Welding quality problems caused by the inconcentricity of the workpiece reinforcement ring and the back cover;

Therefore, in view of the above problems, the automatic welding equipment for the inner seam of the rear cover of the drive axle case is designed. The automatic welding equipment for the inner seam of the rear cover of the drive axle case needs to position the rear cover of the drive axle case during welding, and the positioning is required to be accurate and guaranteed. The concentricity between the inner seam position of the back cover and the back cover, the existing equipment cannot meet this requirement

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