Research Of Reconfigurable NC Service System Based On .NET Component Technology

NC (numeric control) technology is an important part of advanced manufacturing technology and it has received great support from many countries. At present, for one hand, with the fast popularization of the INTERNET and development of WEB technology, traditional NC systems are supposed to possess networked and open trend, for another, the fast developing market demands make the NC systems have good reconfiguration ability. A reconfigurable NC service system based on .net component is studied and realized with the financial support of national natural science foundation in this paper. The system studied can not only offer non-real time NC services for many NC machines, but also has great reconfigurable ability.In the paper, a lot of relative materials are searched, the grate importance and different technologies of the subject is studied. Based on the present theories and technologies, a reconfigurable framework of the NC service system is proposed creatively in the paper, the framework is realized through bringing a controlling layer between the interface layer and business logic component layer. The business logic component of the NC service system developed under the reconfigurable framework is configurable and can be loaded whenever is needed. A totally new system can be assembled if the system's configuration file modified and its components axe reorganized.Another main task of the paper is summarizing the main functional modules that a web based NC service system must have, and how these modules are designed and realized is described in the paper. The NC code check and compile module can check out the errors in the NC code and transform the NC code to a structure that can be understood by lower computer. Using UDP, the NC machine remote operation module and coordinate dynamic display module realize sending control instructions and NC codes to lower computers and displaying the coordinates of the NC machine's different axis respectively. The NC code management module realizes the upload and download of the NC codes. The user management module can manage the system's users. The system's log and audit module can record the system's running state and the users' operation.Finally, a testing platform is build in order to do functional and performance test for the system. The test shows that the system can receive many service requests from the NC users at the same time when the network's quantity can be guaranteed. The system can offer stable NC services for many different types of NC machines and can be configured flexibly, meets the demands of NC manufacturing industry.