关键词: 五轴数控加工, 平滑插补, 高速高精加工, 最小二乘法

Abstract:

For the traditional five-axis NC machining methods in the processing of the part free-form curves which had large radius but little change in curvature will result in grooves,a smooth interpolation algorithm was proposed for five-axis CNC system.This algorithm used least square method of numerical calculation and applied it to the five-axis CNC system for machining trajectory finishing.Finally,by making the five-axis CNC machining path smooth,and restoring the original outline of smooth curves,it achieves completing interpolation curve on the smooth curve.The process simulation of round table was presented to validate the efficiency of the algorithm by VERICUT. 

Key words: five-axis CNC machining, smooth interpolation, high-speed high precision machining, least square method