The basic definition of CNC machining

numerical control machining (numerical control machining) refers to a process method of machining parts on numerical control machine tools. Numerical control machine tool machining and traditional machine tool machining process rules are generally consistent, but have also undergone obvious changes. A machining method that uses digital information to control the displacement of parts and tools. It is an effective way to solve the problems of variable parts variety, small batch, complex shape and high precision, and to realize high efficiency and automatic processing.

Numerical control processing refers to the processing by the control system issued instructions to make the tool meet the requirements of various movements, in the form of numbers and letters to indicate the shape and size of the workpiece and other technical requirements and processing technology requirements. It generally refers to the process of machining parts on CNC machine tools.

CNC machine tool is a machine tool controlled by a computer, which is used to control the computer of the machine tool, whether it is a special computer or a general computer, it is called a CNC system. The movements and auxiliary actions of CNC machine tools are controlled by the instructions issued by the CNC system. The instructions of the CNC system are prepared by the programmer according to the material of the workpiece, the processing requirements, the characteristics of the machine tool and the instruction format (CNC language or symbol) specified by the system. Numerical control system according to the program instructions to the servo device and other functional components to send running or termination information to control the various movements of the machine tool. When the machining process of the part is finished, the machine will automatically stop. Any kind of CNC machine tool, if there is no input program instruction in its CNC system, the CNC machine tool can not work. The controlled operation of the machine tool includes the starting and stopping of the machine tool. Spindle start and stop, rotation direction and speed change; Direction, speed and mode of feed movement; Tool selection, length and radius compensation; Tool replacement, coolant on and off, etc.