CNC little knowledge
Release time:
2020-08-12
Numerical control (English name: Numerical Control abbreviation: NC) technology refers to the use of numbers, text and symbols composed of digital instructions to achieve one or more mechanical equipment action control technology. Numerical control is generally the use of general-purpose or special-purpose computer to achieve digital program control, so numerical control is also called computer numerical control (Computer Numerical Control ), referred to as CNC, foreign countries are generally called CNC, rarely use the concept of NC.
It is usually controlled by the position, angle, speed and other mechanical quantities and mechanical energy flow related to the switch. The generation of numerical control relies on the emergence of data carriers and data operations in binary form. In 1908, the perforated metal sheet interchangeable data carrier came out; at the end of the 19th century, a control system with paper as a data carrier and auxiliary functions was invented; in 1938, Shannon carried out rapid data operation and transmission at the Massachusetts Institute of Technology in the United States, laying the foundation for modern computers, including computer digital control systems. Numerical control technology is closely combined with the development of machine tool control. In 1952, the first CNC machine tool came out, which became an epoch-making event in the history of the world machinery industry and promoted the development of automation.
Now, numerical control technology is also called computer numerical control technology (CNC,Compute Numerical Control), at present it is the use of computer to achieve digital program control technology. This technique uses a computer to perform a sequential logic control function of the motion trajectory of the device and the operation of the peripheral device in accordance with a previously stored control program. As a result of the use of computer to replace the original hardware logic circuit composed of numerical control device, so that the input operation instruction storage, processing, operation, logic judgment and other control functions, can be completed by computer software, processing the generated micro-instructions transmitted to the servo drive drive motor or hydraulic actuators to drive the equipment to run.
Numerical control technology is a technology that uses digital information to control mechanical movement and working process. Numerical control equipment is a mechatronics product formed by the penetration of new technologies represented by numerical control technology to traditional manufacturing industries and emerging manufacturing industries, namely the so-called digital equipment, such as numerical control 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.
Numerical control technology and equipment is the development of emerging high-tech industries and cutting-edge industry enabling technology and the most basic equipment. Numerical control technology is widely used in the information industry, biological industry, aviation, aerospace and other defense industries in the world to improve the manufacturing capacity and level, and improve the adaptability and competitiveness of the market. Industrially developed countries also list numerical control technology and numerical control equipment as national strategic materials. They not only vigorously develop their own numerical control technology and its industry, but also implement blockade and restriction policies on China in terms of "high-precision" numerical control key technology and equipment. Therefore, vigorously developing advanced manufacturing technology with numerical control technology as the core has become an important way for developed countries to accelerate economic development and improve comprehensive national strength and national status.
Previous Page
Mobile Website
WeChat Applet
CopyRight © 2024 Dongguan Yongfei Hardware Products Co., Ltd. All rights reserved