2015, Volume 1, Issue 2
Engineering >> 2015, Volume 1, Issue 2 doi: 10.15302/J-ENG-2015054
CPS Modeling of CNC Machine Tool Work Processes Using an Instruction-Domain Based Approach
National Numerical Control System Engineering Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
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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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