Structural Design Of Welding Robot

Since the designed welding robot works in a quasi-plane and narrow space environment, in order to ensure that the robot can track the weld automatically according to the deviation information of the arc sensor, the designed robot should be compact in structure, flexible in movement and stable in operation. In view of the characteristics of narrow space, this paper develops a small mobile welding robot. According to the motion characteristics of each structure of the robot, the modular design method is used to divide the robot mechanism into three parts: wheeled mobile platform, welding torch adjustment mechanism and arc sensor. Among them, the wheeled mobile platform mainly performs rough tracking of the weld due to its large inertia and slow response. The welding torch adjustment mechanism is responsible for precise tracking of the weld, and the arc sensor completes the real-time identification of the weld deviation. In addition, the robot controller and motor driver are integrated and installed on the robot mobile platform to make it smaller. At the same time, in order to reduce the impact of dust on moving parts in harsh welding environments, a fully enclosed structure is adopted to improve its system reliability.