This paper introduced the basic principle of off senter rotary polishing,analysed the force beteen grinding block and workpieces,inertia force under the basic machining principle.

• 通过改变辅具的结构形状，可以改变这些力的方向与磨块与工件间的作用方式，从而可完成对不同形状、尺寸、加工要求零件的高效去笔刺和光整加工。