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Network CNC is an inevitable requirement for the development of the manufacturing industry, it has become one of the important means for enterprises to improve competitiveness. DNC has developed into a workshop CNC information integration and the main form of device integration, has been employed in many enterprises. This article is based on full analysis of the issue of the use of CNC equipment, combined with the actual situation of the workshop equipment, designed a collection of communications, monitoring, statistics and management the DNC network system in one. DNC networking technology in the design and development process, using a combination of multi-threading technology, programming techniques, database development, and other means, the ultimate realization of the five major objectives of the system: 1. System to achieve different CNC systems, different manufacturers, different era, NC machine tools (machining centers), network management; CNC equipment for two-way communication, remote call server in the device side of the CNC program; CNC machine tools, CNC program can also be transmitted to the server; 3. acquisition equipment a variety of processing information, such as the workpiece information, tool information, the time of the switch machine and the processing completion time; statistics of the total standby time and the total processing time of each device within a certain time, the number of workpieces, and the calculated use of equipment rate; NC program can edit, review, approval, curing process, design technology department and workshop design CNC programming a different management style, the initial design of the program and modify the program can be compared ; 5. types of CNC workshop information classification management, including device management, parts management. The system consists of three parts: network communications, database, software system. Network communication structure, using protocol conversion networking programs and to convert CNC machine tools for Ethernet node, and then multilayer switches CNC machine tools, client and server network connection through the serial port server and RS-232 communication port, the formation of the DNC network hardware base; database stores all the NC program information, work process, machine status information, the program to transmit information; software system using C / S architecture, a total of four sub-modules, server and client data transmission services calculating operation to effectively alleviate the problem of a network overload, the software according to the user's request one-way operation, automatic data collection. After the practical application prove that the system can effectively improve the utilization and the level of automation of the workshop CNC equipment to facilitate enterprise management to make the right decisions, improve production efficiency. And system scalability, portability, for later laid a good foundation for further integration with other systems.
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