Abstract
The data communication technology has the obvious advantage to the numerical control machine tool, for the application technology of numerical control machine tool, the data communication network is the most important basic technology to realize the online information exchange. According to the requirements of different application fields, the numerical control machine tool to realize the data communication also has some differences, the type of DNC, mainly includes serial DNC, Ethernet DNC and other types. In addition, the development trend of the DNC can be divided into three aspects including network scheduling system, centralized storage and management, and real-time monitoring and introduction.
Keywords: numerical control machine tool; data communication; DNC; serial DNC; Ethernet DNC
Introduction
With the rapid development of industrialization in China, the demand for numerical control machine tools is increasing, and the efficiency of numerical control machine tools is also rising. To improve the performance of the numerical control machine tool, the data communication technology is needed to carry out information exchange among a large number of numerical control machine tools, which is known as the network numerically controlled machine tool. This kind of numerical control machine tool can be connected to the online information exchange system through the data communication network, and the data communication technology can be divided into the DNC (Data Numerical Control device), which generally refers to the online data communication between the numerical control machine tool and the control room or CNC system.
At present, some numerical control machine tools in China are carried out the data communication, the most used DNC is to link the numerical control machine tool with DNC by the serial communication interface such as RS232. With the development of Internet technology, Ethernet is gradually becoming the preferred communication interface for DNC. Compared with the serial DNC, the Ethernet DNC is more reliable and easier to use, and can provide higher communication speed and more efficient data transmission. The Ethernet DNC has been widely used in abroad, but the research and development of Ethernet DNC technology in China is relatively lagging behind.
The development trend of DNC
With the rapid development of numerical control machine tools, more intelligent automatic devices have been developed for human-machine dialogue and machine learning, and the development trend of DNC technology can be divided into three aspects: network scheduling system; centralized storage and management; and real-time monitoring.
1. Network Scheduling System
The DNC scheduling system is an information transfer system used to group and manage the resources of the DNC network, so as to facilitate the information communication of the DNC network in the process of achieving the required functions. With the development of computer technology, the DNC scheduling system can provide a function-rich system architecture, with high efficiency, low cost and easy implementation. By using this system, the DNC network of the machine tool can be managed and configured more easily, so as to improve the overall efficiency of data communication.
2. Centralized Storage and Management
The distributed information of DNC brings great convenience to the management and use of data. The discussion of the centralized storage and management shows the information technology of data storage and the wisdom of data transmission, which promotes the development of DNC technology from the point of view of collection and application. By using the centralized storage and management technology of DNC, the DNC network of the machine tool can be managed and salvaged efficiently, and the management and use of data can be conducted more safe.
3.Real-time Monitoring
The real-time monitoring technology of DNC provides the active information communication and feedback system for the evaluation of DNC technology. The application of real-time monitoring technology in the development of DNC technology can promote the real-time dynamic stability control and monitoring of DNC network, so as to ensure the reliability and smoothness of data communication.
Conclusion
The data communication network is an important part of the design, development and operation of the numerical control machine tool, and the application of data communication technology is the inevitable trend of the current numerical control machine tool. The development trend of DNC technology in China can be divided into three aspects, namely, network scheduling system, centralized storage and management, and real-time monitoring. The application and development of these aspects will further promote the progress of numerical control machine tool and the development of the manufacturing industry, so as to make the numerical control machine tool become more intelligent and powerful.
