科学研究表明,从学科知识中并不能推导出实际工作过程所需的全部知识,因为有一半左右的知识属于＂工作过程知识＂（work process Knowledge）,而职业教育恰恰培养的是学生要具备完成某个＂工作过程＂的能力,所以职业教育课程必然一定程...科学研究表明,从学科知识中并不能推导出实际工作过程所需的全部知识,因为有一半左右的知识属于＂工作过程知识＂（work process Knowledge）,而职业教育恰恰培养的是学生要具备完成某个＂工作过程＂的能力,所以职业教育课程必然一定程度上与工作过程相联系。而在模具与数控的教学中以项目为载体的一体化教学模式正是将学生置于一定工作过程中的理论与实践相互结合的教学方式。展开更多
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 C...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.展开更多
文摘科学研究表明,从学科知识中并不能推导出实际工作过程所需的全部知识,因为有一半左右的知识属于＂工作过程知识＂（work process Knowledge）,而职业教育恰恰培养的是学生要具备完成某个＂工作过程＂的能力,所以职业教育课程必然一定程度上与工作过程相联系。而在模具与数控的教学中以项目为载体的一体化教学模式正是将学生置于一定工作过程中的理论与实践相互结合的教学方式。
基金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)
文摘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.
