• Categories:Industry News
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• Time of issue:2019-08-23 16:46
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(Summary description)Numerical control (English name: Numerical Control abbreviation: NC) technology refers to the use of digital instructions composed of numbers, characters and symbols to realize the motion control of one or more mechanical devices. CNC is generally controlled by a general-purpose or special-purpose computer for digital program control. Therefore, CNC is also called Computer Numerical Control (CNC), which is called CNC in foreign countries. The concept of NC is rarely used.


        It controls the mechanical quantities such as position, angle, speed, etc. and the amount of switching related to the flow of mechanical energy. The generation of numerical control relies on the emergence of data carriers and binary form data operations. In 1908, a perforated sheet metal interchangeable data carrier was introduced; at the end of the 19th century, a control system with paper as a data carrier and an auxiliary function was invented; in 1938, Shannon conducted rapid data calculation and transmission at the Massachusetts Institute of Technology. It laid the foundation for modern computers, including computer numerical control systems. CNC technology is developed in close cooperation with machine tool control. In 1952, the first CNC machine tool came out, becoming an epoch-making event in the history of the world machinery industry, promoting the development of automation.


        Nowadays, CNC technology is also called CNC Numerical Control Technology (CNC), and it is currently a computer-based digital program control technology. This technique uses a computer to execute a sequential logic control function for the motion track of the device and the peripherals in accordance with a previously stored control program. Since the computer is used to replace the numerical control device which is originally composed of hardware logic circuit, the realization of various control functions such as storage, processing, calculation, logic judgment of the input operation instruction can be completed by computer software, and the generated micro-instruction transmission is processed. Drive the motor or hydraulic actuator to drive the device.


        CNC technology is a technology that uses digital information to control mechanical motion and work processes. CNC equipment is a mechatronic product formed by the penetration of new technologies represented by numerical control technology into traditional manufacturing industries and emerging manufacturing industries, so-called digital equipment. Such as CNC machine tools. Its technology involves many fields: (1) mechanical manufacturing technology; (2) information processing, processing, transmission technology; (3) automatic control technology; (4) servo drive technology; (5) sensor technology; (6) software technology Wait.


        CNC technology and equipment are the enabling technologies and the most basic equipment for the development of emerging high-tech industries and cutting-edge industries. National defense industries such as information industry, bio-industry, aviation, and aerospace have widely adopted numerical control technology to improve manufacturing capacity and level, and to improve their adaptability and competitiveness to the market. Industrial developed countries also listed numerical control technology and numerical control equipment as the national strategic materials, not only vigorously developing their own numerical control technology and its industry, but also implementing a blockade and restriction policy on China in terms of "high-precision" numerical control key technologies and equipment. Therefore, vigorously developing advanced manufacturing technology with CNC technology as the core has become an important way for the developed countries in the world to accelerate economic development and improve their overall national strength and national status.