基于宏域曲率吻合原则充分优化刀具参数,以鼓形刀有效特征线段上一端点与加工曲面的误差偏置面重合进行初步定位,通过调整鼓形刀具上有效特征线段端点的位置及刀具在该点绕曲面表面法矢方向和走刀方向旋转的角度以避免干涉和实现刀位优化,最终获得行宽为最大的无干涉刀位。 Based on the principle of curvature matching in the macro-domain, the parameters of the tool are optimized, and the last point of the effective characteristic line of the drum-shaped knife coincides with the error offset surface of the machined surface. By adjusting the position of the end point of the effective characteristic line on the drum- Point around the normal surface of the surface of the normal direction and the direction of rotation of the knife to avoid interference and achieve knife position optimization, and ultimately get the maximum line width interference-free tool position.