• CN:11-2187/TH
  • ISSN:0577-6686

›› 2007, Vol. 43 ›› Issue (2): 191-195.

• 论文 • 上一篇    下一篇

单圈非重复性主轴回转精度评价

王建敏;戴一帆;李圣怡   

  1. 国防科学技术大学机电工程与自动化学院
  • 发布日期:2007-02-15

ACCESSMENT OF APERIODIC SPINDLE ERROR MOTION IN SINGLE CIRCLE

WANG Jianmin;DAI Yifan;LI Shengyi   

  1. School of Mechatronics Engineering and Automation, National University of Defence Technology
  • Published:2007-02-15

摘要: 与工件圆度的误差评价相比,实现对不具有单圈重复性的主轴回转精度的评价较为困难。在分析主轴轴线定义及理想轴心可观测性的基础上,建立单圈非重复性主轴回转精度评价的数学模型,针对该数学模型,进行主轴回转误差的集合转换,使得转换后的集合能够适应于计算机处理的误差评价方法。然后利用极差极小化的原理,建立最小区域法的误差评定统一准则和作用表面的统一判别准则。利用这两个评判准则,可以顺利实现对主轴回转误差的最小区域法评价、最小外切圆法评价和最大内接圆法评价,从而提高单圈非重复性主轴回转误差的评价精度,同时也提高误差评价的效率。

关键词: 误差分析, 误差评价准则, 主轴回转精度

Abstract: It’s more difficult to obtain the evaluation result of aperiodic spindle error motion in single circle than of work- spice roundness. The evaluation model of aperiodic spindle error motions in single circle is provided based on the analysis of the definition and the observation of spindle ideal axis. For the model, the new set can be dealt with different evaluation method based on the computer, after the spindle error motions set transformed. Then the uniform evaluation criterion of minimum zone reference circles method is established, and also the effects surface uniform evaluation criterion. It’s convenient to obtain the evaluation result by minimum zone reference cir-cles method or maximum inscribed circle method or minimum circumscribed circle method, on the base of the two criterions. Moreover the appreciation precision is improved greatly, and also the appreciation efficiency.

Key words: Error analysis, Error evaluation criterion, Spindle error motion

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