凸轮数控加工中的曲线拟合

THE CURVE FITTING IN NC MACHINING OF CAM

本文介绍一种用在数控加工中，仿造和测绘凸轮的曲线拟合方法，即正交多项式曲线拟合，并编制了FORTRAN和程序．该方法能够避免解“病态”的方程组，正交多项式的最高次数可以指定，也可以自动选取“最佳”次数，拟合精度高。

Orthogonal polynomials curve fliting,the method of curve fitting in NC maching of reproducing,surveying and drawing earn, is reported in this article,and procedure written FORTRAN is designed this method can avoid calculating ill- condition equations,and acquire better fitting accuracy through appointing the highest power or selecting automatically the best power of orthogonal polynomials. of course in can meet the demands of production.