Servo motor is a high-precision and high-efficiency motor, which is widely used in robots, CNC machine tools and other fields. Its high-precision control principle is to control the speed of the motor to achieve precise control of robots, equipment, etc. In this article, we will introduce the high-precision control principle of servo motor in detail.
1.Working principle of servo motor
Servo motor is a motor that can achieve position control. It can control the position of the motor by controlling the speed and direction of the motor. Servo motor usually consists of a motor and a closed-loop control system. The closed-loop control system controls the position of the motor by feedback of the motor position information.
The working principle of servo motor is: the motor drives the load to move by rotating the bearing, and the position information of the motor is fed back in real time through the encoder. The closed-loop control system adjusts the speed and direction of the motor according to the position information fed back by the encoder, thereby controlling the load position.
2.High-precision control principle of servo motor
The high-precision control principle of servo motor is to control the speed of the motor to achieve high-precision control of the load. High-precision control of servo motor mainly involves the following aspects:
1.Control the speed of the motor
Controlling the speed of the motor is one of the keys to achieve high-precision control of servo motor. The speed of the motor is achieved by controlling the voltage and current of the motor. When the motor receives the control signal, the speed of the motor is controlled.
2.Control the direction of the motor
Controlling the direction of the motor is also one of the keys to achieve high-precision control of the servo motor. The direction of the motor is achieved by controlling the voltage and current of the motor and changing the direction of the motors magnetic field. Thus, the direction of the motors magnetic field is changed to achieve the direction of the motor.
3.Control the position of the load
Controlling the position of the load is one of the cores of high-precision control of the servo motor. The position of the load is controlled by the motor position information fed back in real time by the encoder. Thus, the speed and direction of the motor are controlled, thereby controlling the position of the load.
3.Advantages of high-precision control of servo motors
The high-precision control of servo motors has the following advantages:
1.High-precision control capability
Servo motors can achieve high-precision control of the load position, and can meet the application requirements of robots, CNC machine tools and other fields with high precision requirements.
2.High efficiency
Servo motors can achieve fast response and high-efficiency motion control, which can improve the production efficiency of robots, CNC machine tools and other fields.
3.Good stability
Servo motors can achieve stable motion control and ensure the operational stability and reliability of robots, CNC machine tools and other fields.
Servo motors are high-precision, high-efficiency motors. Their high-precision control principle is to achieve high-precision control of the load by controlling the motor speed. The high-precision control of servo motors has the advantages of high-precision control capability, high efficiency and good stability. They have been widely used in robots, CNC machine tools and other fields.
Source:https://stepper123.blog4ever.com/high-precision-principle-of-servo-motor
