Abstract: According to the geometric principle of the swinging type camshaft grinding setup, an interpolating technology of multi-constrained camshaft profile CNC grinding is proposed. The interpolation algorithm model involving the cam vector angle θ is developed. Based on foreground and background control theory, the controlling strategy with the separation of the interpolation process and real time servo are proposed. Furthermore, the precision and efficiency of the interpolation algorithm are experimentally verified. The theoretical references and criteria for developing swinging type camshaft CNC grinding machine have been established.

Key words: Camshaft, Foreground and background, Interpolate, Multi-constraint, Swinging type