Performance improvement of machine tool by high accuracy calibration of built-in rotary encoders

Nobuyuki Ishii, Kayoko Taniguchi, Kazuo Yamazaki, Hideki Aoyama

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

In response to the demand for high accuracy and high resolution of angular positioning and movement of CNC machine tools, the demand for rotary encoder systems has also increased for the detection of ultraprecise angular position and movement. Authors had developed a new principle of self-calibration with multiple detecting head which enables detection of the error components of higher order with the less number of detecting heads. In this study, the angular accuracy of the rotary encoder for servo control inside a machine tool was examined with reference to the self-calibration of the rotary encoder using the proposed method. Measured data of the accuracy of that were also utilized to generate the calibration data of the rotary encoder, and the rotary encoder was calibrated with the calibration data. The measured accuracy showed a resolution of 1/236. It was confirmed that the angular positioning accuracy was improved because of the calibration.

Original languageEnglish
DOIs
Publication statusPublished - 2017 Nov 13
Event9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017 - Hiroshima City, Japan
Duration: 2017 Nov 132017 Nov 17

Other

Other9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017
CountryJapan
CityHiroshima City
Period17/11/1317/11/17

Keywords

  • Calibration
  • Machine tool
  • Positioning accuracy
  • Rotary encoder
  • Ultra precision

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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  • Cite this

    Ishii, N., Taniguchi, K., Yamazaki, K., & Aoyama, H. (2017). Performance improvement of machine tool by high accuracy calibration of built-in rotary encoders. Paper presented at 9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017, Hiroshima City, Japan. https://doi.org/10.1299/jsmelem.2017.9.020