The Research Of The NC Machine Tools's Integrative Network Technology In Manufacturing Workshop

The NC machine tools's integrative network can improve greatly workshop's production and management,and enhance the utilization ration of the NC machine tools,and enlarge the machining capability.Its emphasis is integration of the information stream,and it has the characteristic of small inrvestment and fastly take effect. It is the most important step for a compant to carry out its incorporate CAD/CAM and one of the sixty-four-dollar question to solve for informationization in manufacturing.The DNC has be regard as a simple feasible mode for modern manufacture automatization. This issue based on the fact of ZhenJiang LanBaoShi electron industrial corporation and its request and successfully implemented the machine tools's integrative network in manufacturing workshop.At the beginning,the thesis introduce the status of machine tools's integrative network in two aspect:DNC system structure and DNC control softwate. Then ,it detailedly discuss the model of NC machine tools's integrative network in broad and home:point to point control mode, multi-serial ports board control mode,control mode based on fieldbus, control mode based on ethernet network transfer serial server,and analyse their merit and shortcoming and applied place.Based on this and the the actual circus of ZhenJiang LanBaoShi electron industrial corporation,the blue print of integrative network of ethernet network transfer serial server is setted up.Then,based on the demand of ZhenJiang LanBaoShi electron industrial corporation,deeply research the file and the file format for Siemens 840D NC system,set up the hardware of computer contol,and successfully empolder a computer control software.Finally,the model that based on ethernet network transfer serial server of NC machine tools's integrative network is setted up, obtained all the NC machine tools's communication protocol by serial port debugging and serial sniffer, how the hardwares are connected in the project is particularly introduced and successfully empolderred the DNC control software.In this DNC system,the communication between DNC host compute and the NC machine toos has been implemented Based on TCP/IP protocol and C/S model and used Microsoft's sockets technology. All the programming work is done with Visual C++6.0.