Algorithm for Inverse Kinematics Model Based on Projection Method

In order to implement the five-axis high-speed and high-accuracy machining on a computer numerically controlled (CNC) machine tools, the cutter location and orientation data need to be converted to the 5 coordinates of machine by CAD/CAM system. These data to be converted are defined with respect to the coordinate system of work-piece, and they need to be converted to the machine's control commands in machine coordinate system. The kinematics chain of a typical five-axis milling machine of table rotating and tilting type has been introduced in this paper, and then an inverse kinematics model and an efficient algorithm for the model have been presented finally. The real use has been demonstrated to validate the feasibility of the proposed method.