OPTICAL AXIS ADJUSTING METHOD FOR LASER ROBOT AND SYSTEM THEREFOR

摘要

When an optical axis of a laser beam is adjusted in such a manner that a laser beam traveling with its course changed by reflection of light reflecting mirrors provided at articulation portions in a machine body of a laser robot can proceed correctly to a condensing device (36) at the foremost end of the machine body of the robot by use of an adjusting laser beam emitted from a laser oscillator, an optical axis position of the adjusting laser beam output from the condensing device (36) is detected by an optical sensor (46) on an optical path of the laser beam in the machine body (30) of the robot, an optical axis position of the laser beam is detected by another optical sensor (45) provided at another remote position at the upstream side of the optical path, along which the laser beam proceeds to the condensing device (36), and the centers of operations (turnings) of the articulation portions of the machine body of the robot and the optical axes of the laser beam are adjusted so as to coincide with each other at the two measuring positions, thereby setting the correct optical axis of the laser beam in the machine body (30) of the robot.