Research of four-axis intersecting line automatic welding equipment
FENG Qing-xiu，ZHOU Can，XIANG Hao，CHEN Yan
（School of Mechanical Science & Engineering，Huazhong University of Science & Technology，Wuhan 430074，China）
Abstract：Aiming at improving the reliability of the welding process and weld precision，a new type of intersection line weldingequipment was designed for the existing problems in the traditional intersection line welding equipment. After several rounds of selection and simulation， multi-axis motion control card ADT836 was chosen as the core controller intersecting line of welding done by controlling four-axis with the movement， stepper motor drives and stepper motor were mixed with encoder into a servo system and also PID control and feed forward control based on the speed and acceleration were introduced in order to increase the system accuracy. The parameters of motion control card and servo system are from several tests. The experimental results indicate that， this new type of intersecting line welding equipment could get a much more accurate weld with better stability and productivity， and the utomated welding equipment is good for intersection line welding applications.
Key words：four-axis intersection line；automatic welding；I/O control；PID