一种新型五轴加工中心误差测量装置的模型分析

上海交通大学学报（自然版） ›› 2013, Vol. 47 ›› Issue (11): 1801-1806.

一种新型五轴加工中心误差测量装置的模型分析

李亮亮，杜正春

(上海交通大学机械与动力工程学院，上海 200240)

收稿日期:2013-02-28
基金资助:
国家自然科学基金资助项目（51275305，51175343），机械系统与振动国家重点实验室基金项目（MSV201104）

Model Analysis of a Novel Error Measurement Device of Five-axis Manufacturing Center

LI Liangliang,DU Zhengchun

(School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2013-02-28

摘要/Abstract

摘要：

讨论了测量五轴加工中心几何误差的典型R-test装置的研究现状，阐述了R-test装置的工作原理及结构，建立了该新型测量装置的理想和实际结构的数学模型，推导了传感器读数和精密中心球三向位移之间的转换矩阵.采用数值分析方法对该模型进行灵敏度分析，确定了影响该机床误差测量装置的主要误差因素，并通过Monte-Carlo方法分析了该装置的整体不确定度.

关键词: 五轴加工中心, 误差模型, 蒙特卡洛模拟, 灵敏度分析

Abstract:

In order to measure the errors of a five-axis machine tool quickly and accurately, the R-test was developed. In this paper, the current research status of the R-test device worldwide and presents its typical working principle and structure were introduced and the idealistic and realistic error model of this measurement device were constructed. Besides, the transformation matrix from sensor readings and precision ball center dimensions were established, and effect of all error sources on the accuracy of the error measurement device was displayed according to sensitivity analysis. Finally, the error measurement accuracy of this error measurement device was analyzed by Monte-Carlo analysis.

Key words: 5-axis machine tool, error model, Monte-Carlo simulation, sensitivity analysis

中图分类号:

TH 701

李亮亮，杜正春. 一种新型五轴加工中心误差测量装置的模型分析[J]. 上海交通大学学报（自然版）, 2013, 47(11): 1801-1806.

LI Liangliang,DU Zhengchun. Model Analysis of a Novel Error Measurement Device of Five-axis Manufacturing Center[J]. Journal of Shanghai Jiaotong University, 2013, 47(11): 1801-1806.

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