What is the difference between NC and CNC systems of CNC machine tools?

CNC machine tool is the abbreviation of CNC machine tool. 1. ), referred to as CNC machine tools. In the national standard GB 8 129- 1997, the numerical control of machine tools is defined as: the device using numerical data (referred to as numerical control device) continuously attracts numerical data during operation, so as to realize automatic control of a certain production process, which is called numerical control. The core of traditional numerical control system is numerical control device: it is a random logic circuit composed of various logic elements and storage elements, and adopts a fixed wiring hardware structure to realize numerical control function through hardware. This numerical control system is called hardware numerical control. With the development of semiconductor technology and the decline in the price of microprocessors and microcomputers, digital control devices have developed into computer digital control devices, that is, CNC (Computer Manual Control) devices. It can be seen that the "CNC machine tool" is actually a "computer CNC machine tool", which is caused by historical reasons, but it will not cause any misunderstanding, so it has been used all the time. Refer to C.com in detail.