Briefly describe the network DNC system and the introduction of the DNC system

DNC (Distributed Numerical Control) is a commonly used manufacturing term for networked CNC machine tools. Its essence is a numerical control system distributed in the workshop composed of a computer and a machine tool group with a numerical control device using computer network technology. The system is like a unified whole for the user, the system integrates a variety of general physical and logical resources, and can dynamically allocate CNC machining tasks to any processing equipment.

It is a powerful means to improve equipment utilization and reduce production costs, and it is the development trend of the future manufacturing industry.

1.Realize the complete network management of the workshop, build a variety of workshop network systems for the production needs of different workshops, and eliminate the information islands between the CNC equipment in the workshop. Completely change the stand-alone communication mode of the previous CNC equipment, and fully realize the centralized management and control of CNC equipment.

Program management is more standardized. The DNC system has a complete program transmission process, strict user rights management, convenient program version management and good traceability, which realizes the tracking and management of the whole life cycle of NC programs.

3.Greatly improve the utilization rate of CNC equipment and reduce the preparation time of CNC equipment. The convenient, reliable and fully automatic NC program transmission function of the DNC system can maximize the effective utilization rate of CNC equipment.

4.The product quality has been further improved, and the product rejection rate has been significantly reduced. The DNC system can avoid program errors to the greatest extent, and make the product quality fundamentally guaranteed from the management methods and measures.

5.Significantly reduce the labor intensity of the staff. The server side is unmanned, and the equipment side is fully automatic remote transmission, so that the operator can complete all the work such as remote call, remote comparison and remote upload of the program without leaving the equipment, which significantly reduces the time for the operator to go back and forth in the workshop due to program transmission.

6.The workshop site is cleaner. The DNC system realizes the centralized management and centralized transmission of NC programs, and the workshop site no longer needs a large number of desktop computers, tables, chairs and benches, but is replaced by a small number of beautiful and generous on-site touch screens, and the whole workshop appears more tidy and more in line with the requirements of lean production management in the workshop.

DNC (Distributed Numerical Control) is called Distributed Numerical Control, which means direct digital control or distributed digital control. It is the link to realize the integration of CAD CAM and computer-aided production management system, and it is another form of machining automation. The earliest meaning of DNC was direct digital control, and its research began in the sixties of this century.

It refers to the direct connection of several numerical control equipment on a computer, which is responsible for the management and transmission of NC programs. At that time, the main purpose of the research was to solve a series of problems caused by the use of paper tape to input CNC machining programs in early CNC equipment (NC) and the high computational cost of early CNC equipment. The DNC system can realize the unified network management of CNC equipment and production stations in the workshop1, support the first-class processing of CNC equipment, the breakpoint continuation of NC programs, the first-class remote request and historical traceability, etc.2, and improve the production efficiency of enterprise CNC equipment.