Application of serial server in NC machine tool

Project background:

With the development of electronic information technology, the world machine tool has entered the electromechanical integration era with digital manufacturing technology as the core, among which CNC machine tool is one of the representative products. Numerical control machine tool is the main machine of manufacturing industry and the important foundation of national economy. It provides equipment and means for each department of national economy, and has infinite amplified economic and social effects. At present, Europe, the United States, Japan and other industrialized countries have completed the process of CNC machine tool industrialization, and China started from the 1980s, is still in the stage of development.

Program features:

The DNC network system of CNC machine group can be composed of several DNC subnetworks. The subnetwork is connected to the host via Ethernet. This scheme is characterized by using a multi-serial device server to realize the connection of multiple NC devices. Any computer in the enterprise LAN can directly control any machine tool in the network. This method realizes the connection between the traditional serial machine tool and the high-speed industrial Ethernet without distance limitation, so that the information network of the workshop and the whole enterprise and the communication network of the numerical control system can be unified, so as to achieve the resource sharing, and adapt to the needs of network manufacturing.

Advantages:

Low cost of network construction.

◇ Good flexibility, machine tool equipment can be according to the need of any grouping, by different computers to control different numbers of machine tools.

◇ Photoelectric isolator is used to connect the serial port of the machine tool to convert RS232 signals into current ring signals for transmission. It can realize effective electrical isolation of machine tools and network to prevent electromagnetic interference. Greatly increased the transmission distance.

Using TCP/IP network for remote control can solve the problem that the dispersion distance of some machine tools is too far and save some front computers. Using serial communication server can add multiple serial ports without considering the system load of the control computer