A study on the computer-aided measuring integration system for the sheet metal stamping die

In this paper, based on the requirements of the design and manufacturing characteristics, a CAD-based CMM (coordinate measuring machine) software and analysis system for the sheet metal stamping die is developed. The system can analyze the NURBS die surface model in IGES format and generate the measuring program in DMIS format as well as the probe path simulation. Moreover, the proposed system has developed the window graphical interface which shows the measuring position and dimensional error through the integration of the die CAD model and measurement information. It can not only be used to diagnose the die quality, but also improve the shop floor process and provide the die polishing guidance. Real measurement of a set of industrial sheet stamping dies on a CMM validates the effectiveness of the developed system.