By controlling the worktable to rotate in x-y plane, the superposition between the rotary surface of the grinding wheel and the normal vector of the curve was realized.

• 该方法是在传统的曲线磨床的基础上，增加一个可以使工件相对于砂轮偏转的数控回转轴，实现砂轮对工件轮廓的法向跟踪磨削。