WHAT IS A SERVO MOTOR? STRUCTURE, PRINCIPLES OF OPERATION AND APPLICATION OF SERVO MOTOR IN INDUSTRY

Have you ever wondered or thought about how to control a robot (in military applications we often see robots holding bombs, defusing bombs,...); or more simply, robotic arms in industrial chain systems; or cnc cutting machines with precise movement capabilities to mill, turn or bend metal or antenna positioning systems that control accuracy in azimuth and elevation, how do they work? Why can they move so precisely?

You will answer the above questions through this article. Servo motor applications are commonly used in closed-loop systems, for precise position control that we often see in industrial applications. industrial applications and at exhibitions and displays.

WHAT IS A SERVO MOTOR?

In today's automated production line systems, Servo is indispensable.

Servo motor, in the word itself, we get a complete explanation of the function. Servo motor = Servo + Motor. Here, servo means closed loop. The servo motor is a closed loop mechanism that combines position and feedback to control the rotation speed position, it has a feedback sensor to adjust the action. It is a part of the control system, providing the necessary moving force for mechanical equipment during operation.

For example, when you ask to control the robot arm to an exact location on the production line and stop, pick up goods on the line and continue to move accurately to another location to load goods. shelves, then continue another closed loop of returning to the old position to pick up goods on the conveyor belt and arrange them on the shelves again.... Servo motor is an electric motor capable of self-control that rotates a machine with high efficiency and high accuracy at an angle with a specific position and speed. That is an action that conventional engines cannot do.

In the manufacturing industry, servo motors are used in all types of automation solutions, such as printer roll control, additive manufacturing methods in plastics manufacturing technology or in any form. What kind of robot?

Common types of Servo motors

Servo motors are currently being used a lot and are classified into two main types of Servos: DC Servo motors and AC Servo motors.

• AC Servo is a motor that allows it to handle high currents, so it is often used in industrial machinery.
• DC Servo is a motor that is only suitable for small applications, as it cannot handle high currents.

STRUCTURE AND OPERATION PRINCIPLES OF SERVO MOTORS

Now that we know what a servo motor is and where it is used and how it works, let's look at its construction and operating principle:

• The servo motor consists of two windings, the stator and rotor windings. The motor includes two bearings on the front and rear to allow the shaft to move freely.
• The stator winding is wound on the stationary part of the motor and this winding is also known as the field winding of the motor. The stator acts as a magnet that attracts a magnetic field, supporting the motor's operation. When electric current is conducted through wound coils placed inside the steel core, it will create an electromagnetic induction force to convert electrical energy into mechanical energy.
• The rotor winding is wound on the rotating part of the motor and this winding is also called the armature winding of the motor. The rotor is a permanent magnet, a moving part in the electromagnetic system of an electric motor. The interaction force between the coils and the magnetic fields creates a torque around the rotor's rotation axis.
• The encoder is responsible for approximate sensing to determine the rotation speed and rotation position of the motor.

Servo motor as introduced in the structure section is made up of a closed loop system. The output signal of the Servo will be connected to the control circuit. When the motor rotates continuously, the speed and position will be fed back and transmitted to this circuit.

The way servo motors work offers a lot of flexibility, precision and reliability at a high cost efficiency. It can operate and hold position, torque and speed precisely and in just a fraction of a second. This allows for complex machine operations, also making it possible to carry out difficult production processes and is therefore particularly suitable for automation and robotics solutions.

APPLICATIONS OF SERVO MOTORS IN INDUSTRY

Fields of use include most sectors of the processing industry, manufacturing, packaging, assembly and many other demanding applications of robotics, CNC machinery or automated manufacturing such as:

• In radio controlled aircraft: control of elevator position and movement.
• In robotics: control the robot's movements because of its smooth switching and precise positioning.
• In the aerospace industry: maintaining hydraulic fluid in hydraulic systems.
• In electronic devices such as DVD or Blue-ray Disc players: expansion or playback of disc trays.
• In a car: maintain the vehicle's speed...

As a level I agent in Vietnam, Jade M Tech Co., Ltd. will always have the benefits of an agent from As a level I agent in Vietnam, Jade M Tech Co., Ltd. will always have the benefits of an agent from PMI, we will always update customers with the most effective policies and information.

• Always get price support
• Always provided with advertising materials, product introductions, technical documents, and catalogs
• Receive product technical consulting support from PMI experts
• Regularly updated information about new technology and new products.
• In addition, PMI also has enough documents for users to be completely assured about the quality of the product

+ Import and Export Documents (C/O),

+ International Quality Certificate (C/Q)

In addition, as a level I agent in Vietnam, Jade M tech Co., Ltd. currently owns a large warehouse with a complete, diverse and rich range of PMI products. Ensuring that all customers are always available. quantity of orders requested by customers and quick delivery.

We guarantee that when you come to Jade M tech, you will find and own quality PMI product lines to solve your needs.

With all the efforts and efforts of Jade M Tech Co., Ltd. to provide customers with products that are stable in quality and competitive in price.

For further information, please contact: Jade M Tech Co., Ltd

Email: [email protected] or Phone number/Zalo: 0935136236

Thank you very much!, we will always update customers with the most effective policies and information.

• Always get price support
• Always provided with advertising materials, product introductions, technical documents, and catalogs

Receive product technical consulting support from As a level I agent in Vietnam, Jade M Tech Co., Ltd. will always have the benefits of an agent from PMI, we will always update customers with the most effective policies and information.

• Always get price support
• Always provided with advertising materials, product introductions, technical documents, and catalogs
• Receive product technical consulting support from PMI experts
• Regularly updated information about new technology and new products.
• In addition, PMI also has enough documents for users to be completely assured about the quality of the product

+ Import and Export Documents (C/O),

+ International Quality Certificate (C/Q)

In addition, as a level I agent in Vietnam, Jade M tech Co., Ltd. currently owns a large warehouse with a complete, diverse and rich range of PMI products. Ensuring that all customers are always available. quantity of orders requested by customers and quick delivery.

We guarantee that when you come to Jade M tech, you will find and own quality PMI product lines to solve your needs.

With all the efforts and efforts of Jade M Tech Co., Ltd. to provide customers with products that are stable in quality and competitive in price.

For further information, please contact: Jade M Tech Co., Ltd

Email: [email protected] or Phone number/Zalo: 0935136236

• Thank you very much! experts
• Regularly updated information about new technology and new products.

In addition, As a level I agent in Vietnam, Jade M Tech Co., Ltd. will always have the benefits of an agent from PMI, we will always update customers with the most effective policies and information.

• Always get price support
• Always provided with advertising materials, product introductions, technical documents, and catalogs
• Receive product technical consulting support from PMI experts
• Regularly updated information about new technology and new products.
• In addition, PMI also has enough documents for users to be completely assured about the quality of the product

+ Import and Export Documents (C/O),

+ International Quality Certificate (C/Q)

In addition, as a level I agent in Vietnam, Jade M tech Co., Ltd. currently owns a large warehouse with a complete, diverse and rich range of PMI products. Ensuring that all customers are always available. quantity of orders requested by customers and quick delivery.

We guarantee that when you come to Jade M tech, you will find and own quality PMI product lines to solve your needs.

With all the efforts and efforts of Jade M Tech Co., Ltd. to provide customers with products that are stable in quality and competitive in price.

For further information, please contact: Jade M Tech Co., Ltd

Email: [email protected] or Phone number/Zalo: 0935136236

• Thank you very much! also has enough documents for users to be completely assured about the quality of the product

+ Import and Export Documents (C/O),

+ International Quality Certificate (C/Q)

In addition, as a level I agent in Vietnam, Jade M tech Co., Ltd. currently owns a large warehouse with a complete, diverse and rich range of As a level I agent in Vietnam, Jade M Tech Co., Ltd. will always have the benefits of an agent from PMI, we will always update customers with the most effective policies and information.

• Always get price support
• Always provided with advertising materials, product introductions, technical documents, and catalogs
• Receive product technical consulting support from PMI experts
• Regularly updated information about new technology and new products.
• In addition, PMI also has enough documents for users to be completely assured about the quality of the product

+ Import and Export Documents (C/O),

+ International Quality Certificate (C/Q)

In addition, as a level I agent in Vietnam, Jade M tech Co., Ltd. currently owns a large warehouse with a complete, diverse and rich range of PMI products. Ensuring that all customers are always available. quantity of orders requested by customers and quick delivery.

We guarantee that when you come to Jade M tech, you will find and own quality PMI product lines to solve your needs.

With all the efforts and efforts of Jade M Tech Co., Ltd. to provide customers with products that are stable in quality and competitive in price.

For further information, please contact: Jade M Tech Co., Ltd

Email: [email protected] or Phone number/Zalo: 0935136236

Thank you very much! products. Ensuring that all customers are always available. quantity of orders requested by customers and quick delivery.

We guarantee that when you come to Jade M tech, you will find and own quality As a level I agent in Vietnam, Jade M Tech Co., Ltd. will always have the benefits of an agent from PMI, we will always update customers with the most effective policies and information.

• Always get price support
• Always provided with advertising materials, product introductions, technical documents, and catalogs
• Receive product technical consulting support from PMI experts
• Regularly updated information about new technology and new products.
• In addition, PMI also has enough documents for users to be completely assured about the quality of the product

+ Import and Export Documents (C/O),

+ International Quality Certificate (C/Q)

In addition, as a level I agent in Vietnam, Jade M tech Co., Ltd. currently owns a large warehouse with a complete, diverse and rich range of PMI products. Ensuring that all customers are always available. quantity of orders requested by customers and quick delivery.

We guarantee that when you come to Jade M tech, you will find and own quality PMI product lines to solve your needs.

With all the efforts and efforts of Jade M Tech Co., Ltd. to provide customers with products that are stable in quality and competitive in price.

For further information, please contact: Jade M Tech Co., Ltd

Email: [email protected] or Phone number/Zalo: 0935136236

Thank you very much! product lines to solve your needs.

With all the efforts and efforts of Jade M Tech Co., Ltd. to provide customers with products that are stable in quality and competitive in price.

For further information, please contact: Jade M Tech Co., Ltd

Email: [email protected] or Phone number/Zalo: 0935136236

Thank you very much!