Motor stator core mechanism equipped with tooth pressure plate positioning block
By using tooth plate positioning blocks during the pressing and mounting of the motor stator core, the tooth plate alignment problem is solved, and the neatness of the core groove type and the improvement of the motor production quality are achieved.
Patent Information
- Application Number
- CN202421358746.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-14
AI Technical Summary
During the pressing and assembly of the motor stator core, the tooth pressing plate cannot be accurately aligned, which affects the neatness of the core groove type, which takes a lot of time to trim, affecting the motor quality.
A motor stator core mechanism is designed to be equipped with tooth pressing plate positioning blocks. By setting positioning blocks at the tooth pressing plate and the stator punching groove type, and fixing these positioning blocks with pins, ensuring the concentricity of the tooth pressing plate and the punching plate and the groove type.
It effectively ensures the neatness of the stator core pressing, improves the loading quality, thereby improving the production quality of the motor, reducing the dressing time and labor costs.
Smart Images
Figure CN222721296U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor stator core installation and pressing, in particular to a motor stator core mechanism equipped with a tooth pressure plate positioning block. Background Art
[0002] The motor core press-fitting is to align and press a certain number of punching sheets to fix them into a whole with accurate size, neat and tight appearance. For the stator core with higher power, the motor is larger in size, and the outer circle of the stator core that produces the magnetic conductivity is large and heavy. In the process of stacking the stator core, it is necessary to ensure that the stator teeth have a clamping effect. The slot size of the tooth pressure plates at both ends of the core is larger than the slot of the stator core punching sheet. To ensure the accuracy of the slot of the tooth pressure plate, the tooth pressure plate cannot be larger than 15mm. However, in order to ensure that the tooth pressure plate has sufficient clamping effect, for large-power motors, double tooth pressure plates will be used to ensure it. However, during the pressing process, the stator punching part has a force plate to ensure the uniformity of the core slot. Since the slot size of the tooth pressure plate is larger than the slot of the punching sheet, the force plate cannot play a positioning role. Under the action of pressure, the tooth pressure plate will be misplaced, resulting in the inability to align the slot of the tooth pressure plate with the slot of the core, affecting the offline and core uniformity. After the core is pressed, it takes a lot of time to trim the slot, which not only consumes manpower and time, but the corrected iron foam will also affect the quality of the motor. Summary of the invention
[0003] In view of this, it is necessary to provide a motor stator core mechanism equipped with a tooth pressure plate positioning block.
[0004] A motor stator core mechanism equipped with a tooth pressure plate positioning block comprises a stator core punching sheet, a buckle sheet, a tooth pressure plate, a tooth pressure plate slot-type positioning block, a stator punching sheet slot-type positioning block and a pin. Pin holes are provided in the tooth pressure plate slot-type positioning block and the stator punching sheet slot-type positioning block. The pin is inserted into the pin hole, and the tooth pressure plate slot-type positioning block and the stator punching sheet slot-type positioning block are combined into one. Tooth pressure plates are equipped at both ends of the stator core punching sheet. The tooth pressure plate slot-type positioning block is located at the tooth pressure plate slot, the stator punching sheet slot-type positioning block is located at the stator punching sheet slot, and the buckle sheet is fixedly equipped at both ends of the stator core.
[0005] Preferably, the tooth pressure plate slot-type positioning block and the stator punching sheet slot-type positioning block are provided with two pin holes, and two pins are respectively inserted into the two pin holes.
[0006] Preferably, the groove-type positioning block of the tooth pressure plate is a rectangular parallelepiped structure with a thickness of 20 mm, ensuring that the thickness of the tooth pressure plate can be fixed at the same time.
[0007] Preferably, the stator punching sheet slot-shaped positioning block is a rectangular parallelepiped structure with a thickness of 20 mm, ensuring that the stator core punching sheet has a certain height to fix the slot shape.
[0008] When the stator core is pressed, the lower tire and inner tire of the stator core are the key to positioning and support. The outer circle of the inner tire of the stator core is the inner circle of the stator punching sheet, which can ensure the neatness of the punching sheet when the stator core is pressed. A stopper 2mm larger than the outer circle of the inner tire and 5mm deeper is designed on the lower tire, and the inner tire is dropped into the stopper of the lower tire and fixed. When assembling the stator core, since tooth pressure plates need to be installed at both ends of the core, when pressing, fix the lower tire and inner tire first, The tooth pressure plate is inserted into the inner tube and placed on the lower tube. The inner circle of the tooth pressure plate is larger than the outer circle of the inner tube, and the tooth pressure plate and the inner tube cannot be concentric. It is necessary to use the tooth pressure plate positioning block to ensure the concentricity of the inner tube and the tooth pressure plate. Then the punching sheet is put on the inner tube. To ensure that the punching sheet groove is aligned with the tooth pressure plate groove, it is necessary to combine the tooth pressure plate groove positioning block with the punching sheet groove positioning block together, which can ensure the concentricity of the tooth pressure plate and the punching sheet, and also ensure the neatness of the punching sheet groove and the tooth pressure plate groove. After the core is pressed and assembled, the buckle is inserted and welded, and the positioning block is removed. In this way, the stator core is pressed by adopting the utility model, and the punching sheet groove and the tooth pressure plate groove are completely positioned, which ensures the neatness of the stator core press-fitting, improves the press-fitting quality, and thus improves the production quality of the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a structural schematic diagram of the motor stator core mechanism equipped with a tooth pressure plate positioning block;
[0010] Figure 2 It is a schematic diagram of the structure of the superposition of the tooth pressure plate and the stator core punching sheet;
[0011] Figure 3 It is a schematic diagram of the structure after the tooth pressure plate slot-type positioning block and the stator punching sheet slot-type positioning block are combined;
[0012] Figure 4 It is a schematic diagram of the structure of the motor stator core mechanism equipped with a tooth pressure plate positioning block for pressurization;
[0013] In the figure: stator core punching sheet 1, buckle sheet 2, tooth pressure plate 3, tooth pressure plate groove positioning block 4, stator punching sheet groove positioning block 5, pin 6, tooth pressure plate groove type a, stator punching sheet groove type b, pressure tire inner tube 7, pressure tire lower tube 8. DETAILED DESCRIPTION
[0014] In order to make the technical solution of the present utility model easier to understand, the technical solution of the present utility model is now clearly and completely described in the form of specific embodiments in combination with the accompanying drawings.
[0015] Please also see Figure 1 , Figure 2 and Figure 3A motor stator core mechanism equipped with a tooth pressure plate positioning block includes a stator core punching sheet 1, a buckle sheet 2, a tooth pressure plate 3, a tooth pressure plate slot positioning block 4, a stator punching sheet slot positioning block 5 and a pin 6. Pin holes are provided in the tooth pressure plate slot positioning block 4 and the stator punching sheet slot positioning block 5. The pin 6 is inserted into the pin hole, and the tooth pressure plate slot positioning block 4 and the stator punching sheet slot positioning block 5 are combined into one. After the stator core punching sheets 1 are stacked, tooth pressure plates 3 are installed at both ends. The tooth pressure plate slot positioning block 4 is located at the tooth pressure plate slot a, and the stator punching sheet slot positioning block 5 is located at the stator punching sheet slot b. The buckle sheet 2 is fixedly mounted at both ends of the stator core.
[0016] The tooth pressure plate slot-type positioning block 4 and the stator punching sheet slot-type positioning block 5 are provided with two pin holes, and two pins 6 are respectively inserted into the two pin holes.
[0017] The tooth pressure plate slot type positioning block 4 is a rectangular parallelepiped structure with a thickness of 20mm, ensuring that the thickness of the tooth pressure plate can be fixed at the same time. The stator punching sheet slot type positioning block 5 is a rectangular parallelepiped structure with a thickness of 20mm, ensuring that the stator core punching sheet has a certain height to fix the slot type.
[0018] Please also see Figure 1 , Figure 2 , Figure 3 and Figure 4 When the stator core is pressed, the stator core pressing tire lower tire 8 and the pressing tire inner tube 7 are the key to positioning and support. The outer circle of the stator core pressing tire inner tube 7 is the inner circle of the stator core punching sheet 1, so that the uniformity of the stator core punching sheet 1 can be ensured when the stator core is pressed. A stopper 2mm larger than the outer circle of the inner tube and 5mm deep is designed on the pressing tire lower tire 8, and the inner tube falls into the stopper of the pressing tire lower tire 8 and is fixed. When assembling the stator core, since the tooth pressure plates 3 need to be installed at both ends of the core, the pressing tire lower tire 8 and the pressing tire inner tube 7 are fixed during pressurization. After setting, first put the tooth pressure plate 3 into the inner tube 7 of the pressure tire, and put it on the lower tire 8 of the pressure tire. The inner circle of the tooth pressure plate 3 is larger than the outer circle of the inner tube 7 of the pressure tire, and it is impossible to ensure that the tooth pressure plate and the inner tube are concentric. It is necessary to use the tooth pressure plate positioning block 4 to ensure the concentricity of the inner tube and the tooth pressure plate, and then put the punching sheet on the inner tube. To ensure that the punching sheet groove is aligned with the tooth pressure plate groove, it is necessary to combine the tooth pressure plate groove positioning block with the punching sheet groove positioning block together, so that the concentricity of the tooth pressure plate and the punching sheet can be ensured, and the neatness of the stator punching sheet groove b and the tooth pressure plate groove a can be ensured. After the core is pressed and the buckle 2 is inserted for welding, remove the positioning block. The stator tooth pressure plate groove positioning block 4 and the stator punching sheet groove positioning block 5 are both made using wire cutting equipment, which can fully ensure the size, so that the positioning block can play a positioning role, and the error is small. Placing 3 on the circumference of the core can play a fixing role. The diameter direction is positioned by the length of the positioning block, so that the tooth pressure plate can be ensured to be positioned correctly in both the circumferential direction and the diameter direction.
[0019] In this way, the utility model is adopted to press the stator core, and the slot type of the punching sheet and the slot type of the tooth pressure plate are completely positioned, thereby ensuring the uniformity of the stator core press-fitting, improving the press-fitting quality, and thus improving the production quality of the motor.
[0020] It should be noted that the embodiments described herein are only partial embodiments of the present invention, rather than all implementations of the present invention, and the embodiments are only exemplary, and their role is only to provide a more intuitive and clear way to understand the content of the present invention, rather than to limit the technical solutions described in the present invention. Without departing from the concept of the present invention, all other implementation methods that ordinary technicians in the field can think of without creative work, and other simple replacements and various changes to the technical solutions of the present invention, all belong to the protection scope of the present invention.
Claims
1. A motor stator core mechanism equipped with a tooth pressure plate positioning block, characterized in that: The motor stator core mechanism equipped with a tooth pressure plate positioning block includes a stator core punching sheet, a buckle plate, a tooth pressure plate, a tooth pressure plate slot-type positioning block, a stator punching sheet slot-type positioning block and a pin. Pin holes are provided in the tooth pressure plate slot-type positioning block and the stator punching sheet slot-type positioning block. The pin is inserted into the pin hole, and the tooth pressure plate slot-type positioning block and the stator punching sheet slot-type positioning block are combined into one. Tooth pressure plates are equipped at both ends of the stator core punching sheet. The tooth pressure plate slot-type positioning block is located at the tooth pressure plate slot, the stator punching sheet slot-type positioning block is located at the stator punching sheet slot, and the buckle plate is fixedly equipped at both ends of the stator core.
2. The motor stator core mechanism equipped with a tooth pressure plate positioning block as claimed in claim 1, characterized in that: The tooth pressure plate slot-type positioning block and the stator punching sheet slot-type positioning block are provided with two pin holes, and two pins are respectively inserted into the two pin holes.
3. The motor stator core mechanism equipped with a tooth pressure plate positioning block as claimed in claim 2, characterized in that: The tooth pressure plate groove type positioning block is a rectangular structure with a thickness of 20mm, ensuring that the thickness of the tooth pressure plate can be fixed at the same time.
4. The motor stator core mechanism equipped with a tooth pressure plate positioning block as claimed in claim 3, characterized in that: The stator punching slot positioning block is a rectangular structure with a thickness of 20mm, ensuring that the stator core punching has a certain height to fix the slot shape.