Abstract: An articulatable robotic machine has a forearm and wrist unit capable of handling an internal laser beam received at the aft end of the forearm and exiting at the forward end of the forearm through the wrist unit tooling plate. A laser marker galvohead and collimator are affixed to the tooling plate of the wrist, and a laser generator is affixed to the forearm of the robot machine and provided with a laser beam system to direct a laser beam into the aft end of the laser arm. The output pattern galvohead may be manipulated to a variety of predetermined positions on a workpiece.

Abstract: A machine for program controlled working a material with laser light is provided. The machine includes first movable members for effecting changes of position of a tool centerpoint associated with a function element carried by the machine. Second movable members effect changes in attitude of the function element through the tool centerpoint. A laser light beam is focused to a focus point by a focusing element supported by one of the second members. The laser light beam is conducted to the focusing element by an articulated light pathway from a laser light source. The articulated pathway comprises tubular segments connected at joints to redirect the laser light beam from one tubular segment to another. Each segment is mounted to the joint so as to be rotatable about the longitudinal axis of the segment. Adjustable stops are provided to limit the range of rotation of tubular segments as required.

Abstract: An industrial robot carries a portable laser welder on its movable end effector. The welder has a hollow compression tube axially movable against an anvil to hold a plurality of workpieces together while welding. The laser beam is brought through the tube from a remote laser generator by means of an articulatable light pipe system connecting the compression tube and the generator.