How is the numerical control system composed?
This article will explain in detail how the numerical control system is composed. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.
The CNC system consists of a control system, a servo system and a position measurement system. The control system interpolates according to the machining workpiece program and sends control instructions to the servo drive system; the servo drive system amplifies the control instructions, and the servo motor drives the machinery to move according to the requirements; the measuring system detects the motion position or speed of the machinery and feeds back to the control system to correct the control instructions.
Numerical control system is the abbreviation of digital control system, and its English name is (Numerical Control System). According to the control program stored in computer memory, CNC system performs some or all numerical control functions, and is equipped with interface circuit and servo drive device. The action control of one or more mechanical equipment is realized by using digital instructions composed of numbers, words and symbols, which usually controls mechanical quantities and switch quantities such as position, angle, speed and so on.
CNC system and related automation products are mainly used for CNC machine tools. CNC machine tools are mechatronics products formed by the penetration of new technologies represented by CNC systems into the traditional mechanical manufacturing industry: the machine tools equipped with CNC systems greatly improve the accuracy, speed and efficiency of parts processing. This kind of CNC working machine is one of the important material bases of national industrial modernization.
The composition of numerical control system
Generally speaking, the whole numerical control system consists of three parts, namely, control system, servo system and position measurement system.
The control system interpolates according to the machining workpiece program and sends control instructions to the servo drive system; the servo drive system amplifies the control instructions, and the servo motor drives the machinery to move according to the requirements; the measuring system detects the motion position or speed of the machinery and feeds back to the control system to correct the control instructions. These three parts are organically combined to form a complete closed-loop control CNC system.
The control system is mainly composed of bus, CPU, power supply, memory, operation panel and display screen, position control unit, programmable controller logic control unit and data input / output interface.
The latest generation of CNC system also includes a communication unit, which can complete the internal data communication of CNC and PLC and the connection of external high-order network. Servo drive system mainly includes servo drive device and motor. The position measurement system mainly adopts incremental displacement encoder with long grating or circular grating.
This is the end of the article on "how the numerical control system is composed". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.
