| Circular Interpolation Algorithms of 5-Axis Simultaneous CNC System |
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| 作者姓名： | ZHENG Kuijing~ |
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| 摘 要： | Spatial circular arc can be machined conveniently by a 5-axis NC machine tool.Based on the data sampling method,circular interpolation in two-dimensional plane is discussed briefly.The key is to solve the problem of circular center ex- pressed in the workpiece coordinate system by means of the transformation matrix.Circular interpolation in three-dimensional space is analyzed in detail.The method of undetermined coefficient is used to solve the center of the spatial circle and the method of coor- dinate transformation is used to transform the spatial circle into the XY-plane.Circular arc in three-dimensional space can be ma- chined by the positional 5-axis machining and the conical surface can be machined by the continuous 5-axis machining.The velocity control is presented to avoid the feedrate fluctuation.The interpolation algorithms are tested by a simulation example and the inter- polation algorithms are proved feasible.The algorithms are applied to the 5-axis CNC system software.
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Circular Interpolation Algorithms of 5-Axis Simultaneous CNC System |
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| ZHENG Kuijing.Circular Interpolation Algorithms of 5-Axis Simultaneous CNC System[J].Journal of Wuhan University of Technology,2006,28(Z2). |
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| Authors: | ZHENG Kuijing SHANG Bo |
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| Affiliation: | 1. Mechanical Engineering College,Yanshan University,Qinhuangdao 066004,China;Research and Development Center,GSK CNC Equipment Co.,Ltd.,Guangzhou 510165,China
2. Research and Development Center,GSK CNC Equipment Co.,Ltd.,Guangzhou 510165,China |
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| Abstract: | Spatial circular arc can be machined conveniently by a 5-axis NC machine tool.Based on the data sampling method,circular interpolation in two-dimensional plane is discussed briefly.The key is to solve the problem of circular center ex- pressed in the workpiece coordinate system by means of the transformation matrix.Circular interpolation in three-dimensional space is analyzed in detail.The method of undetermined coefficient is used to solve the center of the spatial circle and the method of coor- dinate transformation is used to transform the spatial circle into the XY-plane.Circular arc in three-dimensional space can be ma- chined by the positional 5-axis machining and the conical surface can be machined by the continuous 5-axis machining.The velocity control is presented to avoid the feedrate fluctuation.The interpolation algorithms are tested by a simulation example and the inter- polation algorithms are proved feasible.The algorithms are applied to the 5-axis CNC system software. |
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| Keywords: | Index Terms-Circular interpolation 5-axis CNC |
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