Autocorrection of work-piece pose for laser processing industrial robot systems

To solve the operation deviation due to rough-localization of workpieces in a computer numberical control(CNC) machining system, the coordinates of two points on the workpiece in the actual CNC coordinate system deviating from the ideal coordinate system was detected so that the robot autocalibrate. The mathematical model of the workpiece coordinate correction, algorithm design and algorithm implementation were described. 6 sets of simulation data show that the displacement error is less than 0.01mm and angle error is less than 0.02°. The correctness of the method is verified.