摘要
对NURBS表达的自由曲面进行了三维模型重构,给出了自由曲面加工刀位点的计算方法,得到了自由曲面NURBS刀具路径规划策略,并将NURBS刀具路径和直线插补刀具路径进行了仿真加工对比,试验结果表明NURBS曲线刀具路径可以大大提高曲面加工的精度,改善曲面的光顺性,能够满足自由曲面数控加工的需要。
The three-dimensional model of NURBS free-form surface is reconstructed, the Calculation method for CL point of free-form surface and the NURBS tool path planning strategy have been given. In addition, simulation and machining to the free-form surface with linear interpolation tool path and NURBS tool path is given. It is proved that NURBS tool path can greatly enhance accuracy, improve the smoothing of the surface during NC machining, also can meet the needs of CNC machining on free-form
出处
《煤炭技术》
CAS
北大核心
2013年第3期40-41,共2页
Coal Technology
基金
唐山学院科学研究基金资助项目(110011B)
