CNC is short for Computer number control.
The direct meaning is computer digital control, which is a processing technology widely used in the manufacturing industry at present. It can also be said that it is the symbol of the manufacturing industry now. CNC can easily realize multi axis linkage processing, such as surface processing. If you leave CNC and use an ordinary machine tool to process, it is almost impossible to complete.
In addition, CNC can easily realize the flexible manufacturing system. In fact, it is not difficult to learn CNC. It can be said that as long as you can play with mobile phones, you can use CNC. However, before learning CNC, it is better to learn the processing principle of ordinary machine tools, as well as the basic mechanical manufacturing knowledge of drawing and tolerance, and then the effect will be good. To put it simply, ordinary machine tools are directly controlled by people to process, while CNC is controlled by people to process by controlling CNC system, so as to achieve more complex and high-speed processing.
Numerical control processing refers to the processing in which the control system sends instructions to enable the cutter to make various movements that meet the requirements, and the technical requirements and processing technology requirements such as the shape and size of the workpiece are expressed in numbers and letters. It generally refers to the technological process of parts processing on CNC machine tools.
CNC machine tool is a kind of machine tool controlled by a computer. The computer used to control the machine tool, whether it is a special computer or a general computer, is collectively referred to as CNC system. The motion and auxiliary action of the NC machine tool are controlled by the instructions issued by the NC system. The instructions of the NC system are compiled by the programmer according to the material of the workpiece, processing requirements, characteristics of the machine tool and the instruction format (NC language or symbol) specified by the system. The CNC system sends out operation or termination information to the servo device and other functional components according to program commands to control various movements of the machine tool. Machining center is a highly automatic multi-function CNC machine tool with tool magazine and automatic tool change device. After the workpiece is clamped on the machining center once, it can complete multiple processes on more than two surfaces, and has a variety of tool change or tool selection functions, thus greatly improving the production efficiency. Machining centers can be divided into boring and milling and turning according to their processing procedures, and can be divided into three axis, four axis and five axis machining centers according to the number of control axes.
