Maucher CNC Robotic uses CNC robots for high-precision applications like water jet cutting, glueing, welding, and others:
https://www.youtube.com/watch?v=AbedU2ij2Oc
Sinumerik directly controlled robot arms (no robot controller inbetween) allow the use of all the availbale CNC functions and compensatios to increase the path and positional accuracy of the robot. Also, the robot & the additional axes are programmed in G-code, same as the machine tools.