Research on the Control System for Automatic Pipeline Welding Based on CANopen

Automatic weld has been used frequently on pipeline projects. The productivity and reliability are most essential features of the automatic welding system. The welding system based on CANopen consists of welding carriage, master control unit, wire feeding box, welding power and welding station. The positioning system of welding carriage can detect accurately itself angle position so that welding system can weld with mated welding parameters at any position. The welding process parameters at every position are calculated with interpolation, the welding system implements that welding process parameters change continuously. The system has the network function via which the welding task data can be transmitted and the welding process data can be monitored. The system has the self diagnostic function which facilitates maintenance and repairs.