The Research On Network Monitoring System Of Cnc Equipment Based On C/S Structure

The CNC equipment's network integration can greatly improve the productivity and the management level of workshop. It is an important means of realizing manufacturing automation. It has important practical significance that how to improve our corporations'management level about CNC equipment and develop a suitable DNC system to our medium and small corporations.This paper first introduced the DNC system composition and main function, and the current CNC equipment that interfaces the main communication.By comparing a variety of network communication technologies'advantages and disadvantages, determined the industrial Ethernet as the networking. It also introduced the various of hardwares what are needed to network and designed the main functions of earch module.Based on overall planning of DNC system, it used client/server architecture as the structure of the soft running. Using Visual C++6.0 as the development tool, I write the software codes of the server and client. The software's main functions can be achieved: upload and download NC program, process management, NC program management, processing site's image acquisition and transmission, and developed the correspond data acquisition and network control software about FANUC CNC equipment ,CNC grinder and ABB IRB series robots. For the security of datas'transmission, it also using the DES algorithm to improve datas'confidentiality.Through the real-time analysis of DNC system, this paper identified the main factor that affected the system's real-time. It also has given the corresponded improvement measures. Based on the reliability analysis of DNC system, adopt the reinforcement and redundancy design network hardware and chain to ensure the reliability of the system operation. And in the light of the security of data transmission problem, adopting DES algorithm to improve data privacy.Finally, this paper had tested the software of client and server, verified the system's stability in the multi-user running state. There had a network control experiments by using MK250 CNC grind, that verified the feasibility of the network control system.