Forge ahead for four years to compose brilliant

2021-06-05

Numerical control (English name: Numerical Control, abbreviation: NC) technology refers to a technology that uses digital instructions composed of numbers, characters and symbols to control the motion of one or more mechanical equipment. Numerical control generally uses general-purpose or special-purpose computers to realize digital program control. Therefore, numerical control is also called Computerized Numerical Control (Computerized Numerical Control), or CNC for short. It is generally called CNC abroad, and the concept of NC is rarely used.

Forge ahead for four years to compose brilliant(图1)

What it controls is usually the position, angle, speed and other mechanical quantities and the switch quantity related to the flow of mechanical energy. The generation of numerical control relies on the emergence of data carriers and binary data operations. In 1908, a perforated sheet metal 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 conducted rapid data calculation and transmission at the Massachusetts Institute of Technology in the United States. Laid the foundation of modern computers, including computer digital control systems. Numerical control technology is developed in close combination with 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