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Bow-type press fitting machines (C-type press fitting machines) have extremely wide and crucial applications in the motor industry. Their open C-shaped structure and high-precision pressure and displacement control perfectly meet the needs of various precision press fitting, forming, and testing processes in motor assembly.Below is a sharing from Jianlong Hydraulic Technology for your reference!
1. Core Application Scenarios
Bow-type press fitting machines are mainly used in the assembly and testing of core motor components. Specific applications are shown in the table below:
Application components | typical press-fitting process | process requirements and equipment characteristics |
Stator Assembly | Pressing the stator core into the motor housing (frame) | High concentricity and perpendicularity are required to prevent core deformation. The equipment must have good rigidity and a pressing curve monitoring function. |
Rotor Assembly | Bearing press-fitting into the shaft, magnet/core press-fitting into the shaft, commutator/slip ring press-fitting | This involves precision interference fits. Pressure and displacement must be precisely controlled to prevent shaft bending, bearing clearance loss, or magnet damage. A servo press-fitting machine is preferred. |
End Cover and Assembly | Bearing is pressed into the end cover, and the end cover is pressed into the machine base. | Ensure the coaxiality of the bearing and end cover, and the end cover and machine base. The equipment must be equipped with a self-aligning floating pressure head to avoid unilateral stress. |
Other components | Terminal crimping, cooling fan crimping, housing riveting | Mostly irregularly shaped or small parts crimped. The C-shaped structure provides open operating space, facilitating multi-station mold design and manual/automatic loading/unloading. |
2. Technical Points and Selection Considerations
When selecting bow-type press fitting machines for the motor industry, the following three points are crucial:
2.1 Precision and Process Control are Core
• Process monitoring is essential: Motor performance is extremely sensitive to assembly gaps. The equipment should be able to plot and save the pressure-displacement curve in real time. By comparing it with a preset ideal curve, the press fitting quality can be automatically judged (e.g., whether there is jamming, whether the positioning is accurate), achieving 100% quality traceability.
• Recommended equipment: Servo electric or servo hydraulic press fitting machines. They can precisely control the press fitting speed, position, and pressing force, and are especially suitable for precision press fitting of bearings, magnets, etc.
2.2 Structural and Mold Adaptability
• Open Structure Advantages: The C-shaped opening facilitates operation of long, strip-shaped motor rotors, stators, and other components from the side or top.
• Customized Molds: Customized positioning fixtures and pressure heads are required for different motor models to ensure uniform force and precise positioning.
2.3 Automation and Intelligent Integration
• To improve efficiency and consistency, bow-type press fitting machines are often integrated as a workstation in automated assembly lines, combining with robotic arms, conveyor lines, and vision positioning systems to achieve unmanned production.
3. Application Trends: Integrated Intelligent Press Fitting Workstation
The most cutting-edge application is upgrading bow-type press fitting machines into intelligent workstations integrating pressing, measurement, and testing. For example, after pressing bearings, the motor's rotational torque or axial movement can be immediately detected online, achieving a closed-loop "assembly-inspection" process to ensure consistent motor performance upon delivery.
If you need to purchase an arch-type press machine, please provide more specific information about the motor type (e.g., micro motor, drive motor, large industrial motor) or press components (e.g., bearing press fitting, magnet assembly). We will provide you with more detailed technical parameters and selection suggestions. For further consultation/suggestions on arch-type press machines or to purchase other high-quality hydraulic presses, please contact us (or scan the WhatsApp QR code below). Jianlong Hydraulic Technology will provide you with personalized and customized professional solutions and is dedicated to serving you.
Contact: Miss.Li
Phone: 18822971180
Tel: 86-18822971180
Email: lifuyan78@gmail.com
Add: Guangyi Industrial Park, No. 2, Tanglip Jinfu West Road, Liaobu Town, Dongguan City, China
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