Design and Simulation Analysis of Pipe Welding Robot Scheme Based on Robotstudio

In view of the current situation that all-position welding of pipeline circumferential seams relies on manual welding and automatic welding, this paper proposes four automatic robot operation schemes suitable for the welding of oil and gas pipelines in mountainous areas. According to the layout of the robot, it can be divided into: floor-mounted scheme, pipe-holding mounted scheme, ceiling mounted scheme and arc track mounted scheme. Through SolidWorks, 3D models of the four schemes are established, to import Robotstudio simulation software and perform path simulation, automatically convert the 3D model curve of the workpiece into the welding trajectory of the welding robot, and design the motion path and simulation of the welding robot. The changes of joint angle, welding torch speed, acceleration, total motor power and energy consumption during the welding operation of each scheme were analyzed. The results show that the small change of the joint angle of the arc track scheme can avoid dead spots, the small speed and acceleration of the welding torch ensure the stability and safety of the robot operation, and the small energy loss of the motor can save energy and improve work efficiency.