| Realization Methodology of a 5-axis Spline Interpolator in an Open CNC System |
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| 作者姓名： | Wang Yongzhang Ma Xiongbo Chen Liangji Han Zhenyu |
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| 作者单位： | School of Electromechanical Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| 基金项目： | Key Development Program of Science and Technology of Heilongjiang Province, China （GB05A501） |
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| 摘 要： | By making use of the advantages of non-uniform rational B-spline （NURBS） curves to represent spatial curves, an instruction format with double NURBS curves suitable for 5-axis coordinated real-time interpolation is presented to replace the current 5-axis coordinated linear interpolation method defective in low-speed, low-accuracy and enormous numerical control （NC） files in sculptured surface machining. A generation procedure of the NC files with the presented format is introduced and the method to realize the interpolation in an open computer numerical control （CNC） system is developed by ourselves. These illustrated the feasibility of the proposed method and its capability of avoiding all the shortages of 5-axis linear interpolation method.
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| 关 键 词： | 插值 开放式电脑数值控制系统 刻纹装饰表面 五轴加工 曲面设计软件 |
| 修稿时间： | 2006-09-072007-01-15 |
Realization Methodology of a 5-axis Spline Interpolator in an Open CNC System |
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| Wang Yongzhang Ma Xiongbo Chen Liangji Han Zhenyu.Realization Methodology of a 5-axis Spline Interpolator in an Open CNC System[J].Chinese Journal of Aeronautics,2007,20(4):362-369. |
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| Authors: | Wang Yongzhang Ma Xiongbo Chen Liangji Han Zhenyu School of Electromechanical Engineering Harbin Institute of Technology Harbin China |
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| Institution: | Wang Yongzhang,Ma Xiongbo,Chen Liangji,Han Zhenyu School of Electromechanical Engineering,Harbin Institute of Technology,Harbin 150001,China |
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| Abstract: | By making use of the advantages of non-uniform rational B-spline (NURBS) curves to represent spatial curves, an instruction format with double NURBS curves suitable for 5-axis coordinated real-time interpolation is presented to replace the current 5-axis coordinated linear interpolation method defective in low-speed, low-accuracy and enormous numerical control (NC) files in sculptured surface machining. A generation procedure of the NC files with the presented format is introduced and the method to realize the interpolation in an open computer numerical control (CNC) system is developed by ourselves. These illustrated the feasibility of the proposed method and its capability of avoiding all the shortages of 5-axis linear interpolation method. |
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| Keywords: | open CNC system sculptured surface 5-axis machining NURBS interpolation |
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