ARTICULATED ARM TYPE INDUSTRIAL LASER ROBOT.

摘要

This invention relates to articulated arm type industrial laser robot equipped with at least two robot arms (24:26, 44:46, 82:84) of a joint coupling type that are held by robot base (21, 41, 81) either directly or through a swivel drum (42) and laser beam emission robot wrists (48, 86) held by the foremost tip (46a) of these robot arms (24:26, 44:46, 82:84). This laser robot further includes laser beam passage means (31, 50, 96) having a hollow ball spline shaft (30, 54, 94) and a ball spline nut (28, 52, 92) and extending and contracting between the two robot arms ((24:26, 44:46, 82:84) in accordance with their relative swivel motion so as to guide the laser beam introduced from outside the robot machine body to the robot wrist (48, 86).