CNC Technology And CNC Machine

1, What is CNC technology?

Numerical control technology, referred to as numerical control (Numerical Control-NC), is a method of using digital information to control mechanical movement and processing.  Since modern numerical control is controlled by computer, it can also be called (computerized numerical control CNC).

In order to carry out digital information control of mechanical movement and processing, it is necessary to have corresponding hardware and components. The hardware and software used to realize digital information control become the numerical control system (Numerical Control System), and the core of the numerical control system is the numerical control device (Numerical Controller).

2, What is CNC Machine?

Machine tools controlled by numerical control technology are called CNC machine tools (NC machine tools). It is a typical mechatronic product that comprehensively applies advanced technologies such as computer technology, automatic control technology, precision measurement technology and machine tool design, and is the basis of modern manufacturing technology. Controlling machine tools is also the earliest and most widely used field of CNC technology. Therefore, the level of CNC machine tools represents the performance, level and development direction of current CNC technology.

3, The basic composition of CNC system.

The CNC system is the core of all CNC equipment. The main control object of the CNC system is the displacement of the coordinate axis (including moving speed, direction, position, etc.), and its control information mainly comes from CNC machining or motion control programs. Therefore, as the most basic composition of the numerical control system, it should include: the input/output device of the program, the numerical control device, and the servo drive. 

The role of the input/output device is to input and output data such as CNC machining or motion control programs, machining and control data, machine parameters, coordinate axis positions, and detection switch states. Keyboard and display are the most basic input/output devices necessary for any CNC equipment. In addition, depending on the numerical control system, it can also be equipped with a photoelectric reader, a tape drive or a floppy disk drive.

The numerical control device is the core of the numerical control system, which consists of input/output interface lines, controllers, arithmetic units and memories. The function of the numerical control device is to compile, calculate and process the data input by the input device through the internal logic circuit or control software, and output various information and instructions to control each part of the machine tool to perform specified actions.