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Adapt To The Development Of New Technologies
Jul 09, 2018

The DNC system is a functional unit based on the CORBA shop floor control system. Today's enterprises are faced with a changing demand environment, so the processing tasks faced by the shop floor control system are also changeable. Such changes include variations in the variety, type, size, throughput, and delivery time of the parts produced, as well as changes in the processing route as a function of production. This requires a shop floor control system architecture that is open in both time and space to run in heterogeneous computer systems in different hardware environments, while adapting to the development of new technologies and accommodating new equipment.

In the CORBA-based shop floor control system, the construction of the common platform for plant information integration and sharing is one of the core issues. We use a distributed control platform based on the client/server structure (such as Orbix) to enable traditional hierarchical control. The structure is transformed into a distribution or control structure that is more suitable for information integration, and can be adapted to uniform production management and organizational requirements in different product manufacturing processes (discrete manufacturing or continuous manufacturing).

DNC system functions include 1NC program and data transfer, communication function with some communication protocol (such as Philip532); 2 machine state acquisition and reporting; 3 automatic assignment of NC program and data to the corresponding machine according to process plan; 4 tool data Distribution and delivery; 5NC program unified management and traceability; 6 workshop data intelligent sharing.

The functional model of the DNC system software, in which the main function of the NC data management is to manage the numerical control data, mainly including the display, insertion, modification, deletion, update, locking (not allowed to change) and printing operations of the numerical control data; NC data execution The main functions are: the transfer of CNC data between the computer and the machine tool, the deletion of the CNC data on the machine tool, the start of the NC program on the machine tool, the obtaining of the working status information from the machine tool at any time and storage in the database, as the operation data acquisition module evaluation processing The basis of the process; the DNC communication interface establishes the connection between the unit control system and the CNC through the DNC protocol and the data link protocol.


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