Abstract:For machining curved surface parts with existing three axis magnetic grinding equipment, because of the changes of the surface normal vector and magnetic axes, the grinding is uneven, so surface roughness of parts is not consistent, affecting grinding effect. An effective method to solve this problem was to optimize the grinding method, the grinding head was adjusted according to the change of surface curvature direction, so the pole axis and the surface normal could be coincidence or maintain a fixed angle, so as to ensure the parts surface wear uniform, improve grinding efficiency, improve grinding quality. Examples show that this method is feasible and effective.