In modern industrial and technical applications, stepping motor is widely used in automation, robotics and precision equipment because of its high precision and controllability. Stepper Motor Core, the Core component of Stepper Motor, plays a vital role in its performance. This paper will discuss the manufacturing process of the stepping motor core and analyze how to ensure the high quality and high performance of the product.

The importance of stepper motor

Stepper motor is a kind of electric pulse into the angular displacement of the motor, its working principle is to generate rotating magnetic field through the stator winding, so as to drive the rotor by stepping rotation. This type of motor is particularly important for applications requiring precise control of position, speed and acceleration, such as 3D printers, CNC machine tools, and medical equipment.

Overview of manufacturing process

The manufacturing process of stepper motor core covers many links, each link is very important. The following are the main steps in the manufacturing process:

1. Material selection

The first step in making a stepper motor core is to choose the right material. The core components are usually made of highly conductive materials to ensure the high efficiency and stability of the motor. Common materials include:

Silicon steel sheet: with excellent magnetic properties, can effectively reduce energy loss.

High-strength plastics: for non-magnetic components, to ensure that the motor's lightweight and durability.

The choice of materials directly affects the performance of the final product, and the manufacturer usually carries out strict material inspection to ensure that it meets the technical requirements.

2. Cold rolling and stamping

After the material is ready, the next step is to cold-roll and press the silicon steel sheet. This process includes:

Cold rolling: by cold rolling process, silicon steel sheet pressed into the required thickness to improve its magnetic properties and mechanical strength.

Stamping: cold-rolled silicon steel sheets are cut into desired shapes and sizes using a precision press. This process requires high-precision molds to ensure consistency and accuracy for each component.

The quality control of cold rolling and stamping process is very important. Any small error may affect the performance of motor.

3. Magnetic processing

The silicon steel sheet after stamping needs magnetic treatment to improve its permeability. Common approaches include:

Annealing: through high temperature treatment, release the internal stress of the material, improve its magnetic properties.

Coating treatment: silicon steel sheet coated with insulating material to prevent short circuit between the winding and the core. In addition, the coating can also reduce hysteresis loss and improve motor efficiency.

The treatment process in this stage is directly related to the efficiency and stability of the motor.

4. Windings

After the core components are ready, the winding stage is entered. The winding is the key step of stepper motor core, usually including:

The production of insulation coil: the use of high-quality insulation copper wire, according to motor design requirements to make windings. The selection of insulating materials is essential to avoid overheating and short circuits.

Winding process: the insulation coil accurately wound on the core components, to ensure that each coil of the tight arrangement. This process requires high-precision equipment to ensure the uniformity and consistency of the coil.

The quality of winding directly affects the electrical performance and thermal management of the motor.

5. Assembly

After the winding is finished, it enters the assembly stage. The assembly process generally includes:

The combination of stepper motor core and winding: the winding and core components are closely combined to ensure good electrical contact.

Installation of other components: according to the design requirements, the installation of bearings, housing and other components to ensure the overall structural stability of the motor.

This stage requires a high degree of precision to ensure good fit between each component to reduce vibration and noise.

6. Testing and quality control

After assembly, the stepper motor core is subjected to rigorous testing and quality control. This process includes:

Electrical performance testing: testing motor current, voltage and power to ensure compliance with design standards.

Mechanical performance test: check the motor torque, speed and temperature rise, to ensure its reliability in the working environment.

Life test: evaluate the durability and stability of the motor by simulating long-term service conditions.

The test phase is the final hurdle to ensure product quality, and only products that pass all the tests can be put on the market.

Conclusion

The manufacturing process of stepper motor core is a complex and detailed process, which covers many links from material selection to final test. Each link has an important impact on the performance, efficiency and reliability of the motor. With the development of automation and high-precision technology, the high-quality manufacturing of stepping motor core will continue to promote the progress of all walks of life.

With the continuous improvement of technology, manufacturers are constantly exploring new materials and processes to enhance the performance of the stepper motor core. In the future, we can expect the stepper motor to be applied in a wider range of fields and create more value for mankind.

About Yuma Precision：

Product range rich: with NEMA6-NEMA34 and other series, covering different specifications and sizes of products, to provide customers with adequate model choice.

By adopting the technology of Rotary lamination, the problem of material difference between plate and plate is solved, and the parameters of product parallelism, planeness, rotor dynamic balance and runout, etc. , significantly improve the performance of the motor.

Strong R & D Capability: Stepper series continues to grow, with 9 series, 33 models and over 10,000 materials available to the market.

Extensive customer base: with its high quality products and services, more than 300 customers have chosen to establish a long-term and stable relationship with royal horse precision.

Huge production scale: the annual output of nearly 35 million sets, to meet the market demand.