Question 2: What are the systems of CNC machine tools? Germany's Siemens and Heidenham, Spain's Fage, Japan's Fanuc and Mitsubishi, there are many in China, but they are all low-end. For example, Guangzhou Digital, Beijing Kaiendi, Shanghai Open, Wuhan Huazhong and Huaxing, Chengdu Guang Tai, Shenzhen Satellite, Aerospace Century Star and other well-known machine tool manufacturers have their own dedicated systems, such as Haas and Heck in the United States, and more in Japan, such as Madzak, Mu Ye and Dawei.
Question 3: What is a numerical control system? Numerical Control System is the abbreviation of numerical control system, and its English name is numerical control system. In the early days, it was called hard NC, which was composed of hardware circuits. After1970s, hardware circuit components were gradually replaced by special computers and became computer numerical control systems.
Computer numerical control system is a system that uses computer to control machining function and realize numerical control. According to the control program stored in computer memory, CNC system performs some or all numerical control functions, and is equipped with a special computer system with interface circuit and servo drive device.
The numerical control system consists of numerical control program, input device, output device, computer numerical control device (CNC device), programmable logic controller (PLC), spindle drive device and feed (servo) drive device (including detection device).
The core of numerical control system is numerical control device. Because of the use of computer, the system has software function. Using PLC instead of the traditional logic control device of machine tool electrical appliances makes the system smaller, more flexible, universal and reliable, easy to realize complex numerical control functions, convenient to use and maintain, and has the functions of connecting with upper computer and remote communication.
Question 4: What are the well-known CNC system companies at home and abroad? At present, there are nearly 30 major CNC system manufacturers in China. It has formed the layout of Japanese FANUC Company and Mitsubishi Company outside East (Shanghai Kai, Nanjing Huaxing, Nanjing Xinfangda, Jiangsu Renhe), South (guangzhou cnc, Shenzhen Xing Shan), West (Chengdu Guang Tai, Mianyang Shengwei), North (Beijing Kaiendi, Shenyang Gaojing, Dalian Yangguang, Beijing Aerospace, Dalian Dasen, Beijing Cage) and Central (Wuhan Huazhong CNC).
Question 5: What kinds of CNC machine tool systems (1) are there?
The hardware of this CNC system is developed by the manufacturer of CNC system, which has strong specificity. After a long period of use, the quality and performance are stable and reliable, and it still occupies most of the manufacturing market. However, because it adopts a completely closed architecture, it often has the following shortcomings:
A. The user's application, maintenance and operator training completely depend on the manufacturer of the numerical control system, and the system maintenance cost is high;
B. The expansion and update of system functions completely depends on the technical level of the company, and the cycle is relatively long;
C. A large number of cheap general-purpose hardware and software on the market can't be used in special numerical control systems, and their functions are relatively simple.
Therefore, with the continuous development of open architecture CNC system, the market of this traditional dedicated CNC system is being challenged, and its market share has been gradually decreasing.
(2) Open CNC system with 2)PC embedded in CNC structure.
Such as Fanuc 16i/ 18i, Siemens 840d, Numio 60 and other numerical control systems. Compared with the traditional special CNC system, this kind of CNC system is open in structure and powerful in function, but the hardware and software structure of the system is very complicated and the price of the system is very expensive, which is beyond the reach of ordinary small and medium-sized CNC machine tool manufacturers.
(3) Open CNC system, in which NC is embedded in PC structure.
The hardware part of the numerical control system consists of an open motion control card and a PC. Motion control card usually uses high-speed DSP as CPU, which has strong motion control and PLC control ability. For example, Mazatorl 640CNC built by Japanese MAZAK Company with mitsubishi electric's MELDASMAGIC 64. This kind of numerical control system has good openness and is convenient for function perfection. The control function of the system is mainly realized by the motion control card. When the hardware of the machine tool changes, it is only necessary to modify the corresponding control software. The system has a high cost performance and can meet the needs of most CNC machine tool manufacturers.
(4) Full-software open CNC system
This is a new type of open CNC system. All CNC functions (including interpolation and position control) are realized by computer software. Compared with the previous CNC system, the full software open CNC system has the highest cost performance, so it has the most vitality.
Question 6: What are the high-end CNC systems in China and what are they? Almost all domestic high-end CNC systems are occupied by foreign brands, such as Siemens, Fanuc, Heidenham and Fag. Domestic CNC system manufacturers mainly occupy the low-end market with high cost performance, and the well-known brands include Beijing Kanedi, guangzhou cnc and Huazhong CNC.
Numerical Control System is the abbreviation of digital control system, and its English name is (numerical control system). According to the control program stored in the computer memory, it performs some or all numerical control functions, and is equipped with a special computer system with interface circuit and servo drive device. Through the use of digital instructions composed of numbers, characters and symbols, the action control of one or more mechanical devices is realized, usually controlling mechanical quantities such as position, angle, speed and switch value.
Question 7: What are the operating systems of CNC lathes? The CNC operating system I know is FANUC CNC system; Siemens numerical control system; Huazhong numerical control system; Century star numerical control system; Mitsubishi CNC system, etc.
FANUC CNC system is relatively stable, while Siemens CNC system is friendly and easy to use.