Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Autonomous Compensation of Thermal Deformation during Long-Time Machining Process

공작기계 장시간 가공중 열변형의 CNC 자율보정 기술

  • 김동훈 (한국기계연구원 초정밀시스템연구실) ;
  • 송준엽 (한국기계연구원 초정밀시스템연구실)
  • Received : 2014.02.11
  • Accepted : 2014.03.14
  • Published : 2014.04.01
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Abstract

The biggest factors, which lower the machining accuracy of machine, are thermal deformation and chatter vibration. In this article, we introduce the development case of a device and technology that can automatically compensate thermal deformation errors of machine during long-time processing on the machine tool's CNC (Computerized Numerical Controller) in real time. In machine processing, the data acquisition of temperature signal in real time and auto-compensation of the machine origin of machine tools depending on thermal deformation have significant influence on improving the machining accuracy and the rate of operation. Thus, we attempts to introduce the related contents of the development we have made in this article : The development of a device that embedded the acquisition part of temperature data, linear regression to get compensation value, compensation model of neural network and a system that compensates the machine origin of machine tool automatically during manufacturing process on the CNC.

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References

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