What does a CNC machining center do?

CNC is the abbreviation of computer numerical control.

Direct is computer numerical control, which is a processing technology widely used in manufacturing industry at present. It can also be said that it is a symbol of the current manufacturing industry. CNC can easily realize multi-axis linkage machining, such as surface machining. Without numerical control, it is almost impossible to process with ordinary machine tools.

In addition, CNC can easily realize flexible manufacturing system. In fact, it is not difficult to learn CNC. It can be said that as long as you can play mobile phones, you will use CNC. But before learning numerical control, it is best to learn the machining principle of ordinary machine tools, as well as the basic knowledge of mechanical manufacturing such as drawing and tolerance, and then talk about the effect. To put it simply, ordinary machine tools are directly controlled by people for processing, while numerical control is to control the machine tools by controlling the numerical control system, so as to realize more complex and higher-speed processing.

Numerical control machining refers to the machining in which the control system issues instructions to make the cutter make various movements that meet the requirements, and the technical requirements such as the shape and size of the workpiece and the machining process requirements are expressed in the form of numbers and letters. Generally refers to the process of machining parts on CNC machine tools.

CNC machine tool is a kind of machine tool controlled by computer. Computers used to control machine tools, whether special computers or general computers, are collectively referred to as numerical control systems. The movement and auxiliary actions of CNC machine tools are controlled by instructions issued by CNC system. The instructions of CNC system are written by programmers according to the material of workpiece, processing requirements, the characteristics of machine tools and the instruction format (CNC language or symbol) specified by the system. According to the program instructions, the numerical control system sends operation or termination information to the servo device and other functional components to control various movements of the machine tool.

When the machining process of the parts is completed, the machine tool will automatically stop. Any kind of numerical control machine tool can't work without inputting program instructions in its numerical control system. The controlled action of the machine tool roughly includes the start and stop of the machine tool; Start and stop of spindle, change of rotation direction and speed; Direction, speed and mode of feed movement; Tool selection, length and radius compensation; Tool replacement, startup and shutdown of coolant, etc.