NC simulation for adaptive look-ahead interpolator with on-line collision detection

ABSTRACTThis paper proposes a numerical control (NC) machining simulation system with adaptive look-ahead interpolator and on-line collision detection function. Adaptive collision detection between tool and machine can be executed synchronously to avoid interference during the machining process. Traditional multi-axis machines are used to process free-form surfaces. However, determining how to check whether or not the machining path is correct remains a challenge. In path planning, determining how to avoid the wrong path resulting in the waste of materials and machine damage has become an important issue in the industry. Currently, most of planning use pre- processing simulation prior to actual machining aims to eliminate the wrong path that may result in collision. In this study, the efficiency of a developed multi-axis collision detection system is based on the computational complexity of possible collision parts. Hence, during simulation, the number of collision detections is variable and depends on th...