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Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools
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| Zeitschriftentitel: | Key Engineering Materials |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Key Engineering Materials, 455, 2010, S. 599-605 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
Trans Tech Publications, Ltd.
|
| Schlagwörter: |
| author_facet |
Jin, Yong Qiao Wang, Yu Han Yang, Jian Guo Jin, Yong Qiao Wang, Yu Han Yang, Jian Guo |
|---|---|
| author |
Jin, Yong Qiao Wang, Yu Han Yang, Jian Guo |
| spellingShingle |
Jin, Yong Qiao Wang, Yu Han Yang, Jian Guo Key Engineering Materials Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools Mechanical Engineering Mechanics of Materials General Materials Science |
| author_sort |
jin, yong qiao |
| spelling |
Jin, Yong Qiao Wang, Yu Han Yang, Jian Guo 1662-9795 Trans Tech Publications, Ltd. Mechanical Engineering Mechanics of Materials General Materials Science http://dx.doi.org/10.4028/www.scientific.net/kem.455.599 <jats:p>NC tool paths of digital CAD models are currently generated as a set of discrete data points. The CNC interpolator must convert these points into continuous machine tool axis motions. In order to achieve high-speed and high-accuracy machining, the development of a real-time interpolation algorithm is really indispensable, which can deal with a large number of short blocks and still maintain smooth interpolation with an optimal speed. In this paper, a real-time local cubic B-spline interpolator with look-ahead scheme is proposed for consecutive micro-line blocks interpolation. First, the consecutive micro-line blocks that satisfy the bi-chord error constraints are fitted into a C1 continuous cubic B-spline curve. Second, machining dynamics and tool path contour constrains are taken into consideration. Third, local cubic B-spline interpolator with an optimal look-ahead scheme is proposed to generate the optimal speed profile. Simulation and experiment are performed in real-time environment to verify the effectiveness of the proposed method. Compared with the conventional interpolation algorithm, the proposed algorithm reduces the machining time by 70%.</jats:p> Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools Key Engineering Materials |
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| title |
Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_unstemmed |
Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_full |
Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_fullStr |
Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_full_unstemmed |
Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_short |
Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_sort |
real-time b-spline interpolator with look-ahead scheme for high-speed cnc machine tools |
| topic |
Mechanical Engineering Mechanics of Materials General Materials Science |
| url |
http://dx.doi.org/10.4028/www.scientific.net/kem.455.599 |
| publishDate |
2010 |
| physical |
599-605 |
| description |
<jats:p>NC tool paths of digital CAD models are currently generated as a set of discrete data points. The CNC interpolator must convert these points into continuous machine tool axis motions. In order to achieve high-speed and high-accuracy machining, the development of a real-time interpolation algorithm is really indispensable, which can deal with a large number of short blocks and still maintain smooth interpolation with an optimal speed. In this paper, a real-time local cubic B-spline interpolator with look-ahead scheme is proposed for consecutive micro-line blocks interpolation. First, the consecutive micro-line blocks that satisfy the bi-chord error constraints are fitted into a C1 continuous cubic B-spline curve. Second, machining dynamics and tool path contour constrains are taken into consideration. Third, local cubic B-spline interpolator with an optimal look-ahead scheme is proposed to generate the optimal speed profile. Simulation and experiment are performed in real-time environment to verify the effectiveness of the proposed method. Compared with the conventional interpolation algorithm, the proposed algorithm reduces the machining time by 70%.</jats:p> |
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| author | Jin, Yong Qiao, Wang, Yu Han, Yang, Jian Guo |
| author_facet | Jin, Yong Qiao, Wang, Yu Han, Yang, Jian Guo, Jin, Yong Qiao, Wang, Yu Han, Yang, Jian Guo |
| author_sort | jin, yong qiao |
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| container_title | Key Engineering Materials |
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| description | <jats:p>NC tool paths of digital CAD models are currently generated as a set of discrete data points. The CNC interpolator must convert these points into continuous machine tool axis motions. In order to achieve high-speed and high-accuracy machining, the development of a real-time interpolation algorithm is really indispensable, which can deal with a large number of short blocks and still maintain smooth interpolation with an optimal speed. In this paper, a real-time local cubic B-spline interpolator with look-ahead scheme is proposed for consecutive micro-line blocks interpolation. First, the consecutive micro-line blocks that satisfy the bi-chord error constraints are fitted into a C1 continuous cubic B-spline curve. Second, machining dynamics and tool path contour constrains are taken into consideration. Third, local cubic B-spline interpolator with an optimal look-ahead scheme is proposed to generate the optimal speed profile. Simulation and experiment are performed in real-time environment to verify the effectiveness of the proposed method. Compared with the conventional interpolation algorithm, the proposed algorithm reduces the machining time by 70%.</jats:p> |
| doi_str_mv | 10.4028/www.scientific.net/kem.455.599 |
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| imprint_str_mv | Trans Tech Publications, Ltd., 2010 |
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| spelling | Jin, Yong Qiao Wang, Yu Han Yang, Jian Guo 1662-9795 Trans Tech Publications, Ltd. Mechanical Engineering Mechanics of Materials General Materials Science http://dx.doi.org/10.4028/www.scientific.net/kem.455.599 <jats:p>NC tool paths of digital CAD models are currently generated as a set of discrete data points. The CNC interpolator must convert these points into continuous machine tool axis motions. In order to achieve high-speed and high-accuracy machining, the development of a real-time interpolation algorithm is really indispensable, which can deal with a large number of short blocks and still maintain smooth interpolation with an optimal speed. In this paper, a real-time local cubic B-spline interpolator with look-ahead scheme is proposed for consecutive micro-line blocks interpolation. First, the consecutive micro-line blocks that satisfy the bi-chord error constraints are fitted into a C1 continuous cubic B-spline curve. Second, machining dynamics and tool path contour constrains are taken into consideration. Third, local cubic B-spline interpolator with an optimal look-ahead scheme is proposed to generate the optimal speed profile. Simulation and experiment are performed in real-time environment to verify the effectiveness of the proposed method. Compared with the conventional interpolation algorithm, the proposed algorithm reduces the machining time by 70%.</jats:p> Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools Key Engineering Materials |
| spellingShingle | Jin, Yong Qiao, Wang, Yu Han, Yang, Jian Guo, Key Engineering Materials, Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools, Mechanical Engineering, Mechanics of Materials, General Materials Science |
| title | Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_full | Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_fullStr | Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_full_unstemmed | Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_short | Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| title_sort | real-time b-spline interpolator with look-ahead scheme for high-speed cnc machine tools |
| title_unstemmed | Real-Time B-Spline Interpolator with Look-Ahead Scheme for High-Speed CNC Machine Tools |
| topic | Mechanical Engineering, Mechanics of Materials, General Materials Science |
| url | http://dx.doi.org/10.4028/www.scientific.net/kem.455.599 |