CPS Modeling of CNC Machine Tool Work Processes Using an Instruction-Domain Based Approach

Jihong Chen, Jianzhong Yang, Huicheng Zhou, Hua Xiang, Zhihong Zhu, Yesong Li, Chen-Han Lee, Guangda Xu

Engineering ›› 2015, Vol. 1 ›› Issue (2) : 247-260.

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Engineering ›› 2015, Vol. 1 ›› Issue (2) : 247-260. DOI: 10.15302/J-ENG-2015054
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CPS Modeling of CNC Machine Tool Work Processes Using an Instruction-Domain Based Approach

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Abstract

Building cyber-physical system (CPS) models of machine tools is a key technology for intelligent manufacturing. The massive electronic data from a computer numerical control (CNC) system during the work processes of a CNC machine tool is the main source of the big data on which a CPS model is established. In this work-process model, a method based on instruction domain is applied to analyze the electronic big data, and a quantitative description of the numerical control (NC) processes is built according to the G code of the processes. Utilizing the instruction domain, a work-process CPS model is established on the basis of the accurate, real-time mapping of the manufacturing tasks, resources, and status of the CNC machine tool. Using such models, case studies are conducted on intelligent-machining applications, such as the optimization of NC processing parameters and the health assurance of CNC machine tools.

Keywords

cyber-physical system (CPS) / big data / computer numerical control (CNC) machine tool / electronic data of work processes / instruction domain / intelligent machining

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Jihong Chen, Jianzhong Yang, Huicheng Zhou, Hua Xiang, Zhihong Zhu, Yesong Li, Chen-Han Lee, Guangda Xu. CPS Modeling of CNC Machine Tool Work Processes Using an Instruction-Domain Based Approach. Engineering, 2015, 1(2): 247‒260 https://doi.org/10.15302/J-ENG-2015054

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Acknowledgements

The financial support of the studies is from the National Major Scientific and Technological Special Project for “Development and comprehensive verification of complete products of open high-end CNC system, servo device and motor” (2012ZX04001012). The authors thank the R&D team of National Numerical Control System Engineering Research Center, in particular, Hao Zhou, Chifei Ma, Cong Xue, Guotao Ding, Kun Ying, et al., for their contributions and supports. The authors also thank Professor Jay Lee and Dr. Wenjing Jin of Center for Intelligent Maintenance Systems (IMS Center) of University of Cincinnati, for their assistance.
Compliance with ethics guidelines
Jihong Chen, Jianzhong Yang, Huicheng Zhou, Hua Xiang, Zhihong Zhu, Yesong Li, Chen-Han Lee, and Guangda Xu declare that they have no conflict of interest or financial conflicts to disclose.
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