| 三次B样条插补在足底矫形器加工平台的应用 |
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| 引用本文： | 宣伯凯,杨鹏,孙昊,冀云. 三次B样条插补在足底矫形器加工平台的应用[J]. 河北工业大学学报, 2008, 37(5) |
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| 作者姓名： | 宣伯凯 杨鹏 孙昊 冀云 |
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| 作者单位： | 河北工业大学,电气与自动化学院,天津,300130 |
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| 摘 要： | 由工业PC机 运动控制卡组成的数控平台具有多轴联动功能,能够完成具有复杂曲面的足底矫形器的加工.为提高足底矫形器的加工质量,将三次B样条的方法引入加工过程.B样条方法能很好的表示自由曲线曲面的形状.通过反算控制顶点的方法,使构造的轮廓曲线能精确控制到模型每个数据点,还原曲线的原形.在教据点间进行插值,计算容易曲线光滑.为提高生产效率,在加工过程中采用连续插补的方式.多点加工一次完成减少了运行过程中电机的起停频率,不仅缩短运行时间而且能减小系统震荡.
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| 关 键 词： | 足底矫形器 三次B样条 反算 控制顶点 连续插补 |
The Cubic B-spline Interpolation Method Used in Machining Platform of the Foot Orthosis |
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| XUAN Bo-kai,YANG Peng,SUN Hao,JI Yun. The Cubic B-spline Interpolation Method Used in Machining Platform of the Foot Orthosis[J]. Journal of Hebei University of Technology, 2008, 37(5) |
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| Authors: | XUAN Bo-kai YANG Peng SUN Hao JI Yun |
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| Affiliation: | XUAN Bo-kai,YANG Peng,SUN Hao,JI Yun (School of Electrical Engineering , Automation,Hebei University of Technology,Tianjin 300130,China) |
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| Abstract: | The NC (numerical control) platform based on Industrial Computer + Motion Control Card can achieve multi-spindle linkage and machine complex curved surface object. To raise the machining quality, the Cubic B-Spline interpolation method is applied in machining of the foot orthosis. B-Spline method is a good solution to represent free-form curve and surface. The cubic B-Spline curve can pass the data points by inverse caculating and is returned to original shape.It is not complicated to interpolate between da... |
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| Keywords: | the foot orthosis the cubic b-spline interpolation inverse caculating data points contidrive |
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