Paper Title:
Geometric Errors Sensitivity Analysis of Precision Vertical Machining Center Based on Multi-Body System Theory
  Abstract

Parts of geometric error coupled into space error is the main reason that affects machining accuracy of machine tools; therefore, how to determine the effect of geometric error to the machining accuracy and then assigning geometry precision of parts economically is a difficult problem in machine tool designing process. Therefore, based on multi-body system theory, a sensitivity analysis method of geometric error is put forward in this paper. Let’s take precision vertical machining center for an example. Firstly, an accuracy model of machining center is established based on multi-body system theory, and with 21 geometric errors obtained through experimental verification, key error sources affecting the machining accuracy are finally identified by sensitivity analysis. The example analysis shows that the proposed method can effectively identify the main geometric errors of parts that have great influence on volumetric error of machine tool, and thus provides important theoretical basis to improve the accuracy of machine tool economically.

  Info
Periodical
Chapter
Chapter 1: Materials Science and Mechanical Engineering
Edited by
Barry Tan
Pages
61-66
DOI
10.4028/www.scientific.net/AMM.108.61
Citation
Q. Cheng, D. S. Xuan, J. Sun, Z. F. Liu, "Geometric Errors Sensitivity Analysis of Precision Vertical Machining Center Based on Multi-Body System Theory", Applied Mechanics and Materials, Vol. 108, pp. 61-66, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Peng Zheng, Xin Bao, Fang Cui
Abstract:The thermal deformation error that is the biggest error of effecting the machining precision of Direct-drive A/C Bi-rotary Milling Head was...
59
Authors: Sheng Bao, Fu Zhang, Xi Zhang
Abstract:The random errors exist in measuring with touch trigger probe. These errors are directly introduced into workpiece coordinate system with...
11
Authors: Rong Bo Shi, Ji Ming Yan, Zhi Ping Guo, Zhi Yong Song, Zhi Jun Peng
Chapter 1: Material Section
Abstract:Five axis linkage CNC machine tools, with its high speed, high precision characteristics, are widely used in large aircraft structure part...
161
Authors: Wei Qing Wang, Huan Qin Wu
II. Advanced Manufacturing Technology and Processes
Abstract:Abstract: In order to determine that the effect of geometric error to the machining accuracy is an important premise for the error...
493
Authors: Yong Chao Zhang, Song Lin Wu, Jun Feng Zhang
Chapter 5: Advanced NC Techniques and Equipment
Abstract:The precision of its processes is affected by static error and dynamic error. This paper focuses on modeling about dynamic errors and...
1277