| The quick development of Internet technology brings the huge transformation to the traditional manufacturing industry, in modern times, the market has been changing from bargainor to purchaser, which requests enterprise has flexible production and management mode, traditional manufacturing industry has could not accommodate the change heavily. the network manufacture is a kind of advanced manufacture pattern, which is produced under this kind of environment. It provides the production and management methods to enterprise during the Internet environment, which enhances the enterprise the working efficiency, strengthens the ability of developing new product, reduces the market cycle, expands the market sale space, thus enhances the market competition ability.The key points of our research includes controlling and communicating of machine tool, which is the executant of network manufacturing. As above reasons, combining the project of HFUT technology-rebuilding project of DNC net system, this text researchs the use of numerical control machine tool DNC communication in workshop network manufacturing. At first, the signification and development of traditional DNC is introduced, the composing and the use principles of DNC are introduced too; Secondly, the DNC communication technology (for example: serial communication, communication protocol of NC equipment)in workshop is analyzed detailedly, the composing of DNC based on Internet and the model of TCP/IP are analyzed amply; The soft composing of DNC and the database is designed .the model of DNC function is given, the key parts are realized; Ultimately, based on the actual project, the process and scheme of actualizing integrating network manufacturing with NC machining is introduced, the software and hardware of the project are analyzed too, the result substantiates the rationality and feasibility of the software and hardware, the project procures a favorable effect in actual use.
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