Restoration of robot automatic welding locus based on laser ranging for welding of H-shaped steel corrugated web

According to the research situation of robotic welding of corrugated web at home and aboard, a new method for robot automatic welding of corrugated web was proposed based on the advantages as off-line programming and real-time data storing of industrial personal computer (IPC) system and the good accessibility of robot. A kind of interactive communication between IPC and robot was established firstly by programming. The data of corrugated web were acquired and saved by encoder, external device of sensor and capture card. The saved data were transmitted to robot after being processed by the improved amplitude-limiting filtering algorithm. Robot executed the program files to complete automatic welding of H-shaped steel corrugated web. Results show that the proposed method is feasible and practical. The purpose is to provide a reference for the future development of automatic welding of H-shaped steel corrugated web.