The utility model relates to a device for leading a robot to trace a designated route highly precisely the device is a processing system of the robot for carrying out route tracking and deviation compensation so as to comprehensively utilize a coaxial visual sensing system and a welding seam position sensing system. The device comprises a robot body, a position correcting device, a control system and the like the control system comprises a welding seam position signaling processing unit for receiving measuring data of a welding seam position measuring sensor in a laser processing-head unit a coaxial visual signaling processing unit for receiving the measuring data of a coaxial visual video camera in the laser processing-head unit a robot control unit which stores control procedures of a user is communicated with a main control unit for controlling the movement of the robot body the main control unit storing main control procedures carries out synchronous processing to the measuring data of the welding seam position signaling processing unit and the coaxial visual signaling processing unit, thus further driving the position correcting device and realizing the tracing and compensation of the welding seams. The device can be widely applied to the occasions needing to improve the precision of moving route of the robot.
