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Research on new software compensation method of static and quasi-static errors for precision motion controller

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Abstract

To reduce mechanical vibrations induced by big errors compensation, a new software compensation method based on an improved digital differential analyzer (DDA) interpolator for static and quasi-static errors of machine tools is proposed. Based on principle of traditional DDA interpolator, a DDA interpolator is divided into command generator and command analyzer. There are three types of errors, considering the difference of positions between compensation points and interpolation segments. According to the classification, errors are distributed evenly in data processing and compensated to certain interpolation segments in machining. On-line implementation results show that the proposed approach greatly improves positioning accuracy of computer numerical control (CNC) machine tools.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China

    Ren Kun, Fu Jian-zhong & Chen Zi-chen

Authors
  1. Ren Kun
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  2. Fu Jian-zhong
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  3. Chen Zi-chen
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Corresponding author

Correspondence to Fu Jian-zhong.

Additional information

Project supported by the Special Project for Key Mechatronic Equipment of Zhejiang Province (No. 2006C11067) and the Science & Technology Project of Zhejiang Province (No. 2005E10049), China

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Ren, K., Fu, Jz. & Chen, Zc. Research on new software compensation method of static and quasi-static errors for precision motion controller. J. Zhejiang Univ. - Sci. A 8, 1938–1943 (2007). https://doi.org/10.1631/jzus.2007.A1938

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  • DOI: https://doi.org/10.1631/jzus.2007.A1938

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