仿形法存在着升角大小及在切点处速度不均问题。为此本文提出三元运动合成法,让零件对刀具既移动同时又转动。它的运动方法与数控机床相反,但从满足加工对运动与机构传动的要求上是合理的。 Surveying there is the size of the angle of elevation and uneven speed at the point of tangency problems. To this end, the paper proposes a three-element motion synthesis method, which allows the part to move both the tool and the tool at the same time. Its method of movement is the opposite of a numerically controlled machine, but it is reasonable to meet the machining requirements for motion and mechanism drive.