Based on the point that the speeds of the hob and gear are equal along the tangent line at the cutting point, which is consistent with pure rolling between the pitch curves of the hob and gear, a group of equations is set up.

• 以切削点处工件和刀具的切向速度相等(滚刀节曲线和非圆齿轮节曲线保持相互纯滚动)基本依据，推导出坐标轴联动控制的一组方程式。