The composition of the CNC system

CNC system consists of hardware and software. The understanding of CNC system architecture should be carried out from two aspects: hardware and software. Its core is computer digital control device. Through the system control software and system hardware, it reasonably organizes and manages the input, data processing, interpolation and output information of the NC system, controls the executive parts, and makes the NC machine tool process automatically according to the requirements of the operator. CNC system uses computer as the control component. Usually, some or all NC functions are realized by the NC system software resident in it, so as to control the movement of machine tool in real time. As long as the control software of CNC system is changed, a new control mode can be realized. There are many types of CNC systems, including lathes, milling machines, machining centers and other CNC systems. The CNC system of various CNC machine tools generally includes the following parts: central processing unit CPU, memory (ROM / RAM), input and output equipment (I / O), operation panel, display and keyboard, paper tape punch, programmable controller, etc. (with the rapid reduction of the performance price ratio of computer hardware and the popularization and application of graphic display, the modern CNC system does not need perforated paper tape, but is directly controlled by the computer. It uses a small general-purpose computer or personal computer to directly control a machine tool. The control program of the machine tool is stored in the memory of the computer, which is easy to modify and expand functions and has good flexibility.)