Axial Tracking System and Method for Linear Butt Welding Seam of Arc Welding Robot

Abstract

The invention provides an axial tracking system and method for a linear butt weld of an arc welding robot. The axial tracking system includes a six-axis mechanical arm, a laser displacement sensor, a robot control cabinet, a digital welding power supply, a welding torch and a fixture, six The welding torch is installed on the mechanical arm of the shaft, and the laser displacement sensor is installed on the welding torch through a clamp. The position of the laser point of the laser displacement sensor and the connection line of the welding wire tip are perpendicular to the welding seam; The shaft manipulator and the laser displacement sensor are connected with the robot control cabinet. The present invention can effectively solve the problem of complicated welding programming and teaching process caused by changes in the height direction of the workpiece, and can also solve the problem of inaccurate welding positions caused by individual differences in workpieces, and can change the welding process. The posture of the welding torch is of great significance for the control of welding quality.

Description

technical field [0001] The invention relates to an arc welding robot system with welding seam tracking. Specifically, a displacement sensor is used to assist in realizing the axial adjustment of a welding wire tip during robot welding, and is mainly applied to tracking of straight welding seams with height differences. Background technique [0002] Modern production puts forward requirements for welding technology to further improve efficiency, optimize quality, and improve working conditions. Welding automation is a concrete manifestation of welding workers' compliance with this requirement. Due to the influence of various factors, the actual welding conditions often change. For example, due to strong arc radiation, high temperature, smoke, spatter, groove conditions, machining errors, clamping accuracy, surface conditions and thermal deformation of the workpiece, the welding torch deviates from the weld, resulting in a decline in welding quality or even failure. Such chan...

AI Technical Summary

Problems solved by technology

The large-scale application of corrugated plates puts forward requirements for automatic welding. Due to the complex shape of the welded seam of corrugated plates, the teaching process is cumbersome, and the traditional robot welding process has high requirements for the accuracy of fixtures. It is necessary to introduce suitable sensors to simplify and optimization process

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