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Modeling and analysis of key geometric error for gravity deformation of heavy-duty CNC machine tool

  • School of Mechatronics Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Gravity has huge impact on the accuracy of heavy-duty machine tools. To investigate errors caused by gravity, it is essential to figure out the most influential factor. This paper presents a geometric error modeling for heavy-duty CNC machine tools. Regarding a machine tool as a rigid multi-body system (MBS), the geometric error model has been established by utilizing kinematics chain and homogeneous transfer matrix (HTM). By analyzing the Jacobi matrix, the influence of all the geometric error parameters has been calculated to find out the key geometric error that affect the accuracy most. It is revealed that gravity of beam and tool affect the accuracy of the machine tool most through the ANSYS simulation. It supports a theoretical basis for the further research on error compensation of the key component of a machine tool.

Original languageEnglish
Title of host publicationProcess Equipment, Mechatronics Engineering and Material Science II
PublisherTrans Tech Publications Ltd
Pages90-95
Number of pages6
ISBN (Print)9783038351030
DOIs
StatePublished - 2014
Externally publishedYes
Event2nd International Conference on Process Equipment, Mechatronics Engineering and Material Science, PEME 2014 - Wuhan, China
Duration: 28 Jun 201429 Jun 2014

Publication series

NameApplied Mechanics and Materials
Volume552
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2nd International Conference on Process Equipment, Mechatronics Engineering and Material Science, PEME 2014
Country/TerritoryChina
CityWuhan
Period28/06/1429/06/14

Keywords

  • Analysis
  • CNC machine tool
  • Geometric error modeling

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