• CN:11-2187/TH
  • ISSN:0577-6686

›› 2001, Vol. 37 ›› Issue (6): 15-18.

• 论文 • 上一篇    下一篇

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并联机床插补算法与原理性插补误差预估

王洋;倪雁冰;黄田;张玉明   

  1. 天津大学机械工程学院
  • 发布日期:2001-06-15

INTERPOLATION ALGORITHM AND ITS ERROR PREDICTION FOR THE PARALLEL MACHINE TOOLS

Wang Yang;Ni Yanbing;Huang Tian;Zhang Yuming   

  1. Tianjin University
  • Published:2001-06-15

摘要: 以一种可实现3平动自由度并联机床为例,提出粗、精插补策略与算法,并构造出由PVT和虚实非线性映射造成的原理性插补误差的预估模型。结果表明,若机床在中低速下运行,则原理性插补误差对精度的影响可忽略不计。

关键词: 并联机床, 插补, 精度预估

Abstract: The NC interpolation algorithm for the parallel machine tools is investigated. The algorithm which can be implemented by two steps, i . e . the rough interpolation in the Cartesian space and the precise interpolation in the actuator space. The upper bound of the theoretical error due to the PVT algorithm in the precise interpolation and nonlinear mappling is analyzed. Analyzed. It concludes that this error is negligible provided that the machine operates at low and middle speed.

Key words: Error prediction, Interpolation, Parallel machine tools

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