Research on laser vision tracking technology for automatic welding of thin plate

In order to solve the problem of low welding efficiency and unstable welding quality of thin plate non-structural parts, a set of automatic welding machine is developed by using weld seam tracking technology based on laser vision sensor. The mechanical system and control system of the welding machine are designed. By identifying the characteristic points of the weld seam, the position deviation between the welding torch and the weld seam is calculated and fed back to the controller to adjust the position of the welding torch, thus the adaptive and automatic welding of the butt weld of the thin plate is realized. The experimental results show that the automatic welding machine can better track and modify the welding trajectory. It can meet the needs of on-site welding construction of marine construction.