Advanced NC-programming of parallel machine tool structures using workspace models and NC-simulation systems

This paper describes new concepts and prototype software developments for the NC-programming of parallel machine tools. Important characteristics of the system are the integration of a machine workspace model with the CAM system and the integration of a NC-simulation system with the postprocessor. During tool path generation, each tool posture is checked for feasibility by a fast interrogation of the workspace model. The workspace model stores all possible tool postures (in terms of x,y,z,i,j,k) the parallel machine can reach. During postprocessing, each machine configuration is checked for collision and in case collisions occurs, the system applies an appropriate collision avoidance algorithm.