Welding clamping mechanism of box type automobile exhaust purifier

Abstract

The invention relates to a welding clamping mechanism, particularly relates to a welding clamping mechanism of a box type automobile exhaust purifier, and belongs to the technical field of welding equipment. The mechanism comprises a chassis. Slide rails are arranged at the front end, the rear end, the left end and the right end of the lower surface of the chassis, respectively. A translation plate is slidably mounted in each slide rail. The outer end of each translation plate is connected to a positioning block through a fixed strip. Four sides of a transmission shaft are connected to the four translation plates on the four slide rails at the front end, the rear end, the left end and the right end of the lower surface of the chassis through four connecting rod mechanisms, respectively, and the four connecting rod mechanisms are uniformly distributed along the circumferential surface of the transmission shaft. The welding clamping mechanism provided by the invention is simple, compact and reasonable in structure, the box type automobile exhaust purifier in a welding process is effectively positioned and fixed, deformation of the box type automobile exhaust purifier is reduced, the welding quality is improved, and the manpower and working hours are saved.

Description

technical field [0001] The invention relates to a welding clamping mechanism, in particular to a welding clamping mechanism for a box-type automobile exhaust purifier, which belongs to the technical field of welding equipment. Background technique [0002] In the prior art, the welding work of the box-type automobile exhaust purifier is to connect eight arc-shaped positioning blocks through eight square rods, the square rods are connected with quick clamps, and the quick clamps are operated to press the positioning blocks into the rounded corner of the end cover . The following problems exist in the welding work of the box-type automobile exhaust purifier: due to the different degrees of deformation of the purifier box, the gap at the positioning position is too large during actual operation, and the positioning effect is lost; and when the fixture is turned over, the purifier box may Sliding occurs, which affects welding; at the same time, only four rounded corners are pos...

AI Technical Summary

Problems solved by technology

The following problems exist in the welding work of the box-type automobile exhaust purifier: due to the different degrees of deformation of the purifier box, the gap at the positioning position is too large during actual operation, and the positioning effect is lost; and when the fixture is turned over, the purifier box may Sliding occurs, which affects welding; at the same time, only four rounded corners are positioned on the circumference of the purifier box, and the longer straight section is not positioned; when the purifier box is welded to the end cover, there is a lot of heat at the weld Stress and thermal stress make the four sides that are not positioned near the inside of the box shrink, causing large deformation; in terms of technology, this manual positioning and tightening method cannot fix the end cover, and the end cover can only be knocked in manually in advance. The box body, and then spot welded firmly and then welded on the tooling, which consumes manpower and man-hours

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