Real-time variable feedrate parametric interpolator for CNC machining

Chung Wei Cheng, Mi Ching Tsai, Ming Yang Cheng

研究成果: Conference contribution

4 引文 斯高帕斯(Scopus)

摘要

This study explores the feasibility of variable feedrate parametric interpolators for real-time motion command generation using a digital signal processor (DSP). Most of the existing parametric interpolators are developed for a constant federate due to the computational complexity. However in certain applications, in order reduce the deterioration in accuracy of machining, feedrate commands should be performed in advance to overcome excessive acceleration/deceleration of CNC machines. The aim of this study is to develop a real-time parametric interpolator with variable federate where acceleration/deceleration planning on the feedrate command is performed before the interpolation takes place. This approach that would provide new capabilities for advanced CAD/CAM systems, can compensate for the path command error caused by the acceleration/deceleration after interpolation. To justify the performance of the real-time control interpolator, an X-Y table driven by two servomotors is controlled to track a parametric curve represented in non-uniform rational B-Spline (NURBS) form.

原文English
主出版物標題IFAC Proceedings Volumes (IFAC-PapersOnline)
編輯Gabriel Ferrate, Eduardo F. Camacho, Luis Basanez, Juan. A. de la Puente
發行者IFAC Secretariat
頁面109-114
頁數6
版本1
ISBN(列印)9783902661746
DOIs
出版狀態Published - 2002
事件15th World Congress of the International Federation of Automatic Control, 2002 - Barcelona, Spain
持續時間: 2002 七月 212002 七月 26

出版系列

名字IFAC Proceedings Volumes (IFAC-PapersOnline)
號碼1
15
ISSN(列印)1474-6670

Other

Other15th World Congress of the International Federation of Automatic Control, 2002
國家/地區Spain
城市Barcelona
期間02-07-2102-07-26

All Science Journal Classification (ASJC) codes

  • 控制與系統工程

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