Hand-Eye Calibration in Robot Welding of Aero Tube
ZHANG Zongyu1,GAO Hongming1,HAN Qinglin1,HUANG Rui2 RONG Jian2,WANG Yongchao2
(1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China; 2. Aviation Industry Corporation of China, Chengdu Aircraft Industrial (Group) Co., Ltd., Chengdu 610092, China)
Abstract: Based on the current domestic situation that the welding of aero tube is mainly the manual gas tungsten arc welding, a digital welding of aero tube was proposed. The hand-eye calibration of robot involved in the system was studied. By establishing the camera coordinate system in the installation distance of META seam tracking sensor, the handeye calibration is completed using a three dimensional measuring machine. The results show that the calibration accuracy of this method is ±0.4 mm, which meets the requirement of the digital welding of aero tube.
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