摘要
将曲面与曲面之间的接触原理应用在数控加工中,可解决园柱凸轮,圆锥凸轮等空间凸轮的加工问题。该方法是将凸轮展开后,通过凸轮的轴向坐标、周向坐标和转角的几何关系及其曲线方程,解算出凸轮的切向矢量,进而求出圆柱型铣刀接触点的法向矢量及其接触点的坐标。这样,即完成了凸轮转角与刀具轴向移动间的对应关系——刀具轨迹计算,实现凸轮的数控加工。
The contact principle of the surface is applied into the NC machining of the spatial cams, solved the problem of precise machining of the cylinder cam, and bevel cam. This method by developing the cam onto plane, find the geometrical relationship between the axial coordination, the peripheral coordination, and the rotational angel, and the tangential vector. Than, find out the normal vector and coordination of the contact point on the miller, so as fulfilled the calculation of the correspond relation between the rotate of the cam and the transplant movement of the cutter, and the NC machining of the spatial cams was realized.
出处
《兵工自动化》
2003年第3期19-20,共2页
Ordnance Industry Automation
