What is it? CNC numerical control technology for CNC machining? “CNC” Is English Computerized Numerical Control CNC technology, often referred to simply as CNC, represents a significant advancement over traditional machining methods. In the past, mechanical machining relied on manual operation of conventional machine tools: workers manually turned crank handles to feed cutting tools into metal workpieces and used tools like calipers and rulers to measure the precision of the finished products. Today, however, modern industry has long since adopted computer-numerically controlled machine tools. CNC machines can automatically process any product or component directly according to programs pre-written by technicians.

It is a method that uses digitized information to control machine tool movements and the machining process. Machine tools that employ CNC technology for machining control—or, in other words, machine tools equipped with CNC systems—are referred to as CNC machines. (NC) Machine tools. Among these, the CNC system comprises components such as the CNC controller, programmable logic controller, spindle drive, and feed drive units. CNC machine tools are highly integrated products that combine mechanical, electrical, hydraulic, pneumatic, and optical technologies. To achieve control over the machine tool, it is necessary to use geometric information to describe the relative motion between the cutting tool and the workpiece, as well as process information to specify certain process parameters required for machining, such as feed rate, spindle speed, spindle rotation direction (forward or reverse), tool changes, and coolant on/off operations. This information is organized into processing files according to a specific format. ( That is, the CNC machining program commonly referred to. ) Stored on an information carrier ( Such as disks, punched paper tapes, magnetic tapes, etc. ) Then, the numerical control system on the machine tool reads the data either by importing it directly or by entering it via the NC system’s keyboard, or by receiving it through a communication interface. After decoding this data, the machine tool performs the corresponding actions and processes the workpiece. . Modern CNC machine tools are typical examples of electromechanical integration. , It serves as the technological foundation for next-generation manufacturing technologies and computer-integrated manufacturing systems.

The current development trends in modern CNC machine tools are high speed, high precision, high reliability, multi-functionality, integration, intelligence, and open architecture. The major development directions include the research and development of intelligent, fully functional, general-purpose CNC systems that feature both open hardware and software architectures. CNC technology is the foundation of automated machining and represents the core technology of CNC machine tools. The level of this technology directly affects a country's strategic position and reflects its overall national strength. It continues to evolve alongside advancements in information technology, microelectronics, automation, and measurement technologies.

A CNC machining center is a numerically controlled machine tool equipped with a tool magazine that enables automatic tool changes, allowing it to perform various machining operations on workpieces within a certain range. The key feature of machining parts on a machining center is that, after the workpiece is clamped once, the CNC system can automatically select and change tools according to different machining procedures, adjust the spindle speed, feed rate, tool path relative to the workpiece, and activate other auxiliary functions—all in a continuous manner. This allows the machining center to automatically carry out multiple processes on all surfaces of the workpiece, including drilling, countersinking, reaming, boring, tapping, and milling.

Because machining centers can perform multiple operations in a centralized and automated manner, they eliminate human-induced operational errors, reduce the time spent on workpiece clamping, measurement, machine tool adjustments, as well as the time required for workpiece handling, transportation, and storage, thereby significantly improving both processing efficiency and accuracy, and thus delivering excellent economic benefits. Machining centers can be classified according to the spatial position of their spindles into vertical machining centers and horizontal machining centers.