| NURBS曲线数控插补方法及误差控制 |
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| 引用本文： | 吴宇燕,彭志牛,王宇晗.NURBS曲线数控插补方法及误差控制[J].机械设计与研究,2006,22(4):75-78. |
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| 作者姓名： | 吴宇燕 彭志牛 王宇晗 |
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| 作者单位： | 上海交通大学,机械与动力工程学院,上海,200030 |
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| 摘 要： | 本文针对数控加工系统对空间自由曲线高速高精度加工的需求,讨论了已知型值点的三次NURBS曲线反算法,给出了求解齐次曲线的带权控制顶点的矩阵形式线性方程组,并提出相应的NURBS曲线插补算法。同时为了保证自由曲线插补精度要求,提出了进给速度能随曲线曲率自适应调整,实现高速高精度插补误差控制的方法。
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| 关 键 词： | NURBS曲线 反求算法 插补 精度 |
| 文章编号： | 1006-2343(2006)04-075-04 |
| 收稿时间： | 2005-12-19 |
| 修稿时间： | 2005年12月19 |
The Method of Curve Interpolation and Error Control for 3-Axis Computer Numerical Control (CNC) Machining |
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| WU Yu-yan,PENG Zhi-niu,WANG Yu-han.The Method of Curve Interpolation and Error Control for 3-Axis Computer Numerical Control (CNC) Machining[J].Machine Design and Research,2006,22(4):75-78. |
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| Authors: | WU Yu-yan PENG Zhi-niu WANG Yu-han |
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| Affiliation: | Shanghai JiaoTong University, Shanghai, 200030, China |
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| Abstract: | In order to meet the numerical control process requirements of high speed and high precision of three-dimensional curve, the converse arithmetic of known points is used. The solution for all characteristic roots of a matrix with iterative isgiven, and then corresponding NURBS interpolation arithmetic is presented. At the same time, the method which feed can be adjusted with curvature of curve to implement the control of interpolation error in high speed and high precision is found. |
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| Keywords: | NURBS converse arithmetic interpolation precision |
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