The development trend and process of CNC machine tool technology

As the core of current advanced manufacturing technology, CNC technology has many advantages. For example, it is possible to change the way or process of information processing with software without changing mechanical and electronic equipment, to represent information with word length differences, and to calculate digital information with logic and mathematics. Therefore, CNC technology is widely used in the control of machine tools and robots.

1 The development of numerical control technology

1.1 The development of CNC system technology research process

It is generally believed that the development of CNC system card payment providers has gone through six generations: the first generation of machine tool CNC system was developed by the Massachusetts Institute of Technology in 1952, it is based on relays and electronic tubes machine tool CNC device, can be used for three coordinate vertical milling machine control, the system is known as the electronic tube CNC system, with expensive, difficult to promote the shortcomings of the second generation of the system for the transistor system. The system consists of fixed cnc milling service wiring transistor component circuit, due to the cost of high reasons, the third generation system that integrated circuit control system is born under the premise of the continuous development of integrated circuit technology, can not meet the requirements of the practicality and maintainability of the system. The emergence of the system so that the original system problems s17+ antminer have been improved, the fourth generation of the system is the computer as the core of the small computer numerical control system. It effectively solves the problem of poor practicality, flexibility and maintenance difficulties; the fifth generation is the microcomputer numerical control technology, because the core component of the system is the computer, it also belongs to the computer numerical control system, that is, the numerical control system. The sixth generation of the system is a developed CNC system, can run on different platforms, but also to achieve the function of working with other system programs. In general, the development of CNC technology has gone through six generations, divided into NC stage and CNC stage, the first three generations of electronic tubes, transistors and integrated circuits have gone through the NC stage. The next is the CNC stage.

1.2 The development process of China's CNC machine tool technology

The development of China's CNC technology can be roughly divided into three stages:The first stage was from 1958 to 1979. In this stage, due to the backwardness of China's industrial production, especially the weakness of electronic technology, coupled with the blockade of foreign technology, the development of China's CNC technology is very slow. The second stage is the sixth and seventh five-year plan period and the beginning of the eighth five-year plan. In this stage, the country from developed countries and regions to introduce advanced CNC technology, and through cooperation with them, China initially established a domestic CNC system. The third stage, from the late eighth five-year plan to the present, through technical transformation and scientific and technological research, the market competitiveness of domestic numerical control system is greatly enhanced.

1.3 China's CNC technology development economic situation

At present, in China's CNC system market, foreign products dominate, medium and high-grade CNC system is mainly foreign products, low-grade CNC system is mainly domestic CNC system. In 2009, China implemented scientific research projects, detailed planning around CNC machine tool systems, digital tool systems and other projects, and achieved remarkable results and breakthroughs. China's domestic high-grade CNC technology has achieved rapid development.