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author:

Chen, Jian-xiong (Chen, Jian-xiong.) [1] (Scholars:陈剑雄) | Lin, Shu-wen (Lin, Shu-wen.) [2] (Scholars:林述温) | Zhou, Xiao-long (Zhou, Xiao-long.) [3]

Indexed by:

EI Scopus SCIE

Abstract:

In this paper, a comprehensive error analysis method is proposed to discover how the geometric error propagation through every motion axis, and to find out which error parameters have greater impact on the tool posture error at the end of the kinematic chain. As the geometric error of a motion axis can be regarded as the differential movement, an error model for a four-axis machine tool is established to calculate the tool posture error with all the geometric error parameters. Then a cumulative process of the differential movements of every axis is proposed to describe the error propagation process when moving the tool to the given position. Moreover, the workspace of the machine tool is discretized into an amount of points with a uniform sampling method on the measured positions of the geometric error. Then, a Spearman rank correlation method is presented to find out how closely linked between a single error parameter and the tool posture error all over the sampling workspace. Hence, the ten key error parameters are selected according to the analysis results in the three-axis and four-axis sampling workspace. Finally, an experiment is conducted on the four-axis machine tool with a three-axis controlled trajectory to verify the effectiveness and correctness of the proposed method using a double ballbar. (C) 2016 Elsevier Ltd. All rights reserved.

Keyword:

Differential transformation Error correlation analysis Error propagation analysis Geometric error Multi-axis machine tool

Community:

  • [ 1 ] [Chen, Jian-xiong]Fuzhou Univ, Sch Mech Engn & Automat, Qi Shan Campus, Fuzhou 350002, Fujian, Peoples R China
  • [ 2 ] [Lin, Shu-wen]Fuzhou Univ, Sch Mech Engn & Automat, Qi Shan Campus, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] [Zhou, Xiao-long]Zhejiang Univ Technol, Coll Comp Sci & Technol, Hangzhou, Zhejiang, Peoples R China

Reprint 's Address:

  • 陈剑雄

    [Chen, Jian-xiong]Fuzhou Univ, Sch Mech Engn & Automat, Qi Shan Campus, Fuzhou 350002, Fujian, Peoples R China

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Source :

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE

ISSN: 0890-6955

Year: 2016

Volume: 106

Page: 56-66

3 . 9 9 5

JCR@2016

1 4 . 0 0 0

JCR@2023

ESI Discipline: ENGINEERING;

ESI HC Threshold:177

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 64

SCOPUS Cited Count: 73

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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