| With the development and expansion of CNC (Computerized Numerical Control), the bad compatibility and extensibility of the traditional close-end architecture control system has been more apparent. The open CNC technology has been developed and become the tendency. The objective of open CNC system is to make it constructed at an open platform which has the specialty of expanding, transplantation, interchange, mutual operation. Users can integrate, change or extend the function of system according to requirement to adopt rapid change of market.Develops a kind of open CNC system composed by Windows 2000 operating system, IPC machine and etc with module technology based on COM(Component Object Model), including:1. Analysis the development, tendency, and present researching condition domestically and abroad, discovers the shortcoming of domestic CNC research and points out the necessarily of doing open CNC technology researching.2. Discusses the concept, character and estimation standard of open CNC system, associates with researching here and overseas of open CNC system, analysis open grain degree of three modes.3. Based on comparing popular module, enunciate concept, character and actualizing principle of COM systematically, analysis the feasibility and advantage of developing open CNC system with COM module technology.4. According to the specification of module software, designs a kind of open CNC system platform, analysis the function and internal architecture of CNC system comprehensively, divides the system module reasonably, discusses the relationship between modules, designs and evaluates the key module. So to develop a print board CNC drill-milling machine on the basis of the "IPC + NC" mode, and verify the open-end capability. |