The kinematic relationship between the wheel and the cutter is analyzed.An algorithm of computing tool path for grinding helical curve cutter with CNC ginder is given.

• 分析了砂轮与刀具前刀面之间的相对位置关系，给出了数学模型，提出了数控磨削螺旋刃刀具刀位轨迹生成的实用方法。