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Full compensation method of thermal error of NC machine tool based on sequence depth learning

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  • MingXun Zhu
  • Zhigang Meng

Abstract

In this paper, a full compensation method of thermal error of NC machine tools based on sequence depth learning is proposed. Firstly, the main structure of NC machine tool is analysed and the principle of thermal error compensation is determined. Then, multiple temperature test points are set at the machine body and main shaft to collect thermal error data. Secondly, the correlation degree of thermal error difference sequence is determined according to the running space state. Finally, the thermal error full compensation model is constructed with the help of RNN network algorithm in sequence depth learning, and the model is modified with the help of Lagrange function to realise full compensation. The results show that the total compensation error of thermal error of NC machine tool is less than 2%.

Suggested Citation

  • MingXun Zhu & Zhigang Meng, 2023. "Full compensation method of thermal error of NC machine tool based on sequence depth learning," International Journal of Manufacturing Technology and Management, Inderscience Enterprises Ltd, vol. 37(2), pages 138-150.
    • Handle: RePEc:ids:ijmtma:v:37:y:2023:i:2:p:138-150
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