中国机械工程 ›› 2011, Vol. 22 ›› Issue (4): 419-423.

• 信息技术 • 上一篇    下一篇

一种实时轮廓误差估算方法

李培新1;马跃2;于东2;王志成1,2;韩旭3
  

  1. 1.中国科学院研究生院,北京,100049
    2.中国科学院沈阳计算技术研究所高档数控国家工程研究中心,沈阳,110171
    3.沈阳高精数控技术有限公司,沈阳,110171
  • 出版日期:2011-02-25 发布日期:2011-03-15
  • 基金资助:
    国家科技重大专项(2011ZX04016-071)
    National Science and Technology Major Project ( No. 2011ZX04016-071)

A Method of Real-time Estimation of Contouring Errors

Li Peixin1;Ma Yue2;Yu Dong2;Wang Zhicheng1,2;Han Xu3
  

  1. 1.Graduate School of Chinese Academy of Sciences,Beijing,100049
    2.National Engineering Research Centre for High-end CNC,Shenyang Institute of Computing Technology, Chinese Academy of Sciences,Shenyang,110171
    3.Shenyang Golding NC Tech. Co., Ltd.,Shenyang,110171
  • Online:2011-02-25 Published:2011-03-15
  • Supported by:
    National Science and Technology Major Project ( No. 2011ZX04016-071)

摘要:

在分析离线轮廓误差计算方法的基础上,针对高档数控系统实时任务的要求,提出了一种在线实时估算轮廓误差的方法。该方法克服了对于任意加工曲线,轮廓误差计算过程复杂、计算量大、难以应用到实时任务的缺点。双轴运动实验证明,该算法计算量极小,能够满足实时计算的要求,估算的轮廓误差具有很高的精度,可以指导当前控制参数的选取并可实时查看轮廓误差的控制效果。

关键词:

Abstract:

Based on the study of contour error calculation methods detailed, a novel approach for estimating the contour errors in real-time was proposed for the
requirements of real-time task in high-end CNC.This method solved the problems which, for free-form curve, the contour error calculation process is complex and needs
large computations. Experimental results for a biaxial motion system show that the proposed approach has very small amount of computation and owns very high calculation accuracy in real-time tasks and it can guide the selection of the current control parameters and observe the control effects of the contour errors.

Key words: control precision, contour error, real-time task, biaxial motion system

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