Cnc System Based On The Windows2000 Open System Development

Computer Numeric Control (CNC) is core of modern manufacture technology and important symbol of a nation's level of manufacture industry. In contrast with traditional closed NC, the CNC system of Open Architecture has flexible software and hardware. It is convenient to be renewed and therefore suitable for FMS and CIMS circumstance, which represents the orientation of CNC technology.The paper studies the design idea of PC-based CNC system and the hardware system. And mainly studied the design of position control module. We put forward the new idea of Reconfigurable CNC System, which based on the theories and methods of software reuse, modularization and component. It can improve the reusability and interchangeability of CNC softwares. This CNC system is based on Windows 2000 which has friendly interface, convenient operation and abundant applications. Using VxD technology, the paper advances the method to resolve the real time interrupts in the Windows 2000 environmentThis paper is composed of seven chapters:Chapter one simply introduces the principle of NC, the study status inside and outside of the country, and the thoughts of Reconfigurable CNC System. Chapter two studies the framework of the CNC system of Open Architecture and the realization.Chapter three analyses the hardware system, and emphasizes on the design of position control module.Chapter four simply introduces the Object Oriented theory and design method of software reuse.Chapter five studies real time capability of Windows 2000 environment and puts forward the method to resolve the real time interrupts.Chapter seven summarizes the whole paper and predicts the future work.