Vehicle body auxiliary clamping method for assisting robot in automatic arc welding

Abstract

The invention discloses a vehicle body auxiliary clamping method for assisting a robot in automatic arc welding. Aimed at separated supplied parts existing in welding of a vehicle body, the method comprises the following steps that the resilience deformation at a welding seam position of an assembled body after welding is firstly calculated according to the manufacturing deviation of the suppliedparts, and on the premise that the value meets the design requirements of tolerance, an auxiliary tool clamp is used for clamping the supplied parts; and through deviation source data input of the manufacturing deviation of the supplied parts, clamp positioning errors and the like, a welding seam position adjustment optimization model is constructed, the optimal clamp deviation compensation amountis obtained, the welding seam position is adjusted through the auxiliary tool clamp, and the arc welding robot is guaranteed to conduct welding successfully. According to the method, the arc weldingrobot can be used for accurately performing automatic welding on a target welding seam conveniently according to a preset program, the production efficiency is improved, the manufacturing cost is reduced, and the method has excellent engineering application value.

Description

technical field [0001] The invention relates to the technical field of auxiliary welding, in particular to an auxiliary clamping method of a vehicle body for assisting automatic arc welding of a robot. Background technique [0002] In the process of automobile production and manufacturing, the welding operation is labor-intensive and the working environment is harsh. If manual welding is used, the welding quality cannot be effectively guaranteed, and the parts produced are less flexible and cannot meet the needs of modern automobile production. In this regard, compared with traditional manual welding, the application of welding robots for welding operations can improve production efficiency, optimize part quality, and improve working conditions. Under the control of the preset program, the general arc welding robot realizes the welding of the welding seam between the incoming parts in a fixed spatial position. [0003] In the trial production stage of the car body, the sam...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an auxiliary clamping method for assisting robot automatic arc welding. This method solves the problem of separation between incoming parts of the vehicle body during automatic robot arc welding, and provides clamping on both sides of the weld seam. In order to eliminate the gap between the incoming parts, at the same time, through the deviation source data such as the manufacturing deviation of the incoming parts and the positioning error of the fixture, the optimal fixture deviation compensation amount is obtained, and the position of the welding seam is adjusted to help the arc welding robot according to the preset program. Accurately perform automatic welding on target welds, improve welding quality and efficiency, and reduce manufacturing costs

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