What are the key factors to consider in the design of fan motor progressive die?

The fan motor progressive die is an important tool for producing fan motor components. It is widely used in the stamping processing of motor cores, end covers, rotors and other parts. The progressive die improves production efficiency and part accuracy by gradually completing different processing steps. Designing an efficient, accurate and durable fan motor progressive die is the key to ensuring production quality and reducing manufacturing costs. In the design process, multiple factors must be considered comprehensively to achieve ideal production results and economic benefits. The following are several key factors that need to be considered in the design of fan motor progressive dies:

1. Material selection
Material selection is a crucial factor in the design of fan motor progressive dies. The material of the die directly affects its service life, processing accuracy and durability. Generally, the material of the progressive die needs to have the following characteristics:

High strength and wear resistance: Progressive dies are often subjected to high impact and friction, so high-strength and wear-resistant steels need to be selected. High-hardness die steels (such as DC53, SKD11, etc.) or steels with good heat treatment properties are usually used.
Good fatigue resistance: The mold is susceptible to fatigue damage during long-term use, so the mold material must have good fatigue resistance to ensure the service life of the mold.
Good processability: The mold material needs to have good processability so that it can be precisely processed and trimmed during the manufacturing process.
Selecting the right material can improve the durability of the mold and reduce downtime and replacement costs caused by material fatigue or wear.

2. Mold structure design
The structural design of the fan motor progressive die directly affects the production efficiency and the processing quality of the parts. The following are a few points that need special attention:

Mold segmentation design: The core advantage of the progressive die is to gradually complete the forming of parts through multiple stamping steps. Therefore, a reasonable segmentation design is crucial. Each stamping step needs to be precisely docked in design to ensure the gradual forming of the parts and avoid unnecessary stress or deformation.
Stamping sequence and positioning: A reasonable stamping sequence can effectively reduce the deformation of the parts and ensure the position accuracy of each step in the processing process. The positioning device of the mold needs to be precise to ensure that each component always maintains the correct position during the stamping process.
Strength and stability of the mold: The mold is under great pressure during the working process, so the strength and stability of the mold must be guaranteed. The forces generated by each stamping step must be considered during design to prevent deformation or damage to the mold.
3. Parts quality requirements
The parts of fan motors usually need to meet the requirements of high precision and high surface quality. For example, the shape of the motor core and end cover requires a high degree of symmetry and precision, and the surface finish is required to be high. In order to meet these requirements, designers need to optimize in the following aspects:

Precision control: The progressive die design needs to ensure that the parts have the required dimensional accuracy after each step of stamping. The design should fully consider the mold matching clearance, the shape of the punch and the die to ensure the processing accuracy.
Surface quality: The mold design also needs to consider the surface finish of the parts during the stamping process. Avoiding defects such as scratches, burrs or unevenness on the surface of parts can be achieved by properly designing the stamping process and optimizing the mold surface.
Waste management: Waste management is also a key factor affecting part quality. When designing, it is necessary to consider how to reduce the generation of waste, and the waste treatment method should be easy to recycle and clean up to avoid affecting production efficiency.
4. Maintenance and repair of molds
Fan motor progressive molds usually need to run for a long time, so mold maintenance and repair are also important factors to be considered during design. A well-designed mold can simplify the maintenance process and extend its service life. Specifically:

Easy to maintain design: When designing the mold, the mold should be as easy to disassemble, clean and inspect as possible. Reasonable structural design can reduce the workload during maintenance and ensure the rapid recovery of the mold.
Durability: By selecting high-quality materials and reasonable design, ensure that the mold can maintain a long life in high-frequency use. Avoid frequent failures due to material loss or structural problems.
Mold repairability: Progressive molds will inevitably have some wear or damage after long-term use, so the repairability of the mold needs to be considered during design. For example, some replaceable parts or repair areas can be designed to quickly repair the mold when it is damaged to avoid production stoppage.
5. Production efficiency and cost control
The design of the fan motor progressive mold needs to consider the balance between production efficiency and cost control:

Improve production efficiency: One of the core goals of progressive mold design is to improve production efficiency. Reasonable mold design can improve production efficiency by reducing mold change time, reducing waste and optimizing stamping sequence, thereby reducing the production cost of each unit product.
Cost control: Mold design must control the production cost of the mold while ensuring quality and efficiency. When designing, try to avoid too many complex structures and choose cost-effective materials to ensure that the production cost is within the budget.
6. Process and automation design
With the continuous development of production technology, automation plays an increasingly important role in the production of fan motor progressive molds. When designing, consider how to combine automation technology to optimize the production process:

Automated feeding and discharging system: Automated feeding and discharging can improve production efficiency, reduce manual intervention, and reduce labor costs.
CNC technology: The application of CNC technology can improve the accuracy of mold design and achieve more flexible production adjustments, so that the mold can adapt to the production of parts of different sizes and specifications.