Numerical control (NC) machine tools have played a crucial role in modern manufacturing. The components mentioned, such as programming and program carriers, input devices, numerical control devices (CNC), servo drives, position detection, auxiliary control devices, and machine tool bodies, all contribute to the efficient and accurate operation of the machine tool.
In terms of programming and program carriers, the numerical control program is essential for instructing the CNC machine tool to process parts automatically. The program contains information about the relative positions, movement parameters, process routes, cutting parameters, and auxiliary device actions. Programming can be done manually or through advanced methods like automatic programming (APT) or CAD/CAM design.
The input device is responsible for transferring and storing the numerical control code from the program carrier into the numerical control system. This can be done through optoelectronic readers, tape drives, floppy disk drives, or manual input via keyboard. The input device must ensure that the numerical control system has access to the necessary program information either in real-time during processing or by loading the entire program into the internal memory beforehand.

The numerical control device is the core component of the NC machine tool. It fetches and processes the sections of the numerical control program received from the input device. Through logical circuits or system software, it calculates and compiles control instructions to ensure coordinated and precise movements of the machine tool. Trajectory interpolation is also performed to enable the machine tool to follow complex contour graphics by calculating intermediate points and controlling feed speed, direction, and displacement along each axis.
It's worth noting that the development and application of numerical control technology have greatly enhanced the productivity, precision, and flexibility of manufacturing processes. In China, the government encourages the adoption of advanced manufacturing technologies, including numerical control, to promote industrial upgrading and enhance competitiveness in global markets.