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Proceedings Paper

Method for the straightness measurement of vertical guideways of machine tools using capacitive and inductive sensors
Author(s): Yan-Fen Zang; Xiang-Yang Liu; Guoxiong Zhang
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Paper Abstract

In this paper a new method for the straightness error measurement of vertical guideways of machine tools is presented. A taut wire which is hung near the vertical guideway is used as the datum line for measuring the vertical guideway. The capacitive and inductive sensors are fixed on the spindle box of the machine tool which can move up and down along vertical guideways. The difference between the spindle box and the taut wire measured by the capacitive sensor indicates the straightness error motion of the spindle box. The influence of the straightness of the taut wire can be eliminated by using reversal method. The relative error between the spindle box and the vertical guideway is measured by the inductive sensor. The straightness of the vertical guideway can be obtained by calculating the difference of the measured error motion and the relative error. The measurement error by this method in our measurement is less than 3 m.

Paper Details

Date Published: 22 September 1993
PDF: 5 pages
Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156303
Show Author Affiliations
Yan-Fen Zang, Tianjin Univ. (China)
Xiang-Yang Liu, Tianjin Institute of Technology (China)
Guoxiong Zhang, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 2101:
Measurement Technology and Intelligent Instruments
Li Zhu, Editor(s)

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