Research Of Welding Line Control System With Robot Based-on Fieldbus

This article describes the development of technology in the welding assembly line at home and abroad, analyses the layout design, performance index, function design in the welding assembly line. In terms of the welding assembly line hardware planning and the structure of control network, this article sets up the system platform, uses the industry distributed I/O control way which based on the field bus technology and the safety loop design method which based on the safety bus, these will simplify the hardware system, enhance the stability and ensure the reliability. This article analyses the working principle of commonly used equipment in welding assembly line such as fixture, lifter, locking pin, roller bed, frequency converter, robot, determines the interfaces and working modes of control module. For an example of the floor line, this article introduces the program structure and process control methods which combine the functional modules and configure the interface variables among modules through graphical language, and completes the programming of assembly line control system. Finally, this article analyses the security design and security measures of the welding assembly line.