在数控车床上加工偏置抛物线回转孔

In CNC Lathe Processing Offset Parabola Revolving Hole

在数控车床上加工抛物线内孔是一个难题,由偏置抛物线回转形成的孔结构加工难度更大。通过巧妙设计阶梯圆柱逼近法进行粗加工,微小线段逼近法进行精加工的方案,合理设置变量和走刀路线,有效解决了工艺难题。同时由于曲线的几何坐标系与工件坐标系不重合,在编程尺寸转换上需掌握方法,并合理编写宏程序。

Processing in the CNC lathe parabolic inner hole is a difficult problem,an offset parabola revolving hole structure processing is more difficult.Through the ingenious design of stepped cylindrical approximation method for rough machining and micro line segment approximation precision processing.Solve technical problems by reasonable setting variables and take the knife line.At the same time as the geometric curve coordinate system and the workpiece coordinate system is not coincidence,in the programming size conversion need to master the methods of preparation,and reasonable preparation of macro program.