Motor core lamination stacking tool

By designing a motor core stacking fixture with a fan-shaped surface and positioning ribs, the problems of complex structure, inconvenient operation, and damage to the core in the existing technology are solved, achieving the effects of simplified structure, reduced weight, and improved production efficiency.

CN224481604UActive Publication Date: 2026-07-10SEC ELECTRIC MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SEC ELECTRIC MACHINERY
Filing Date
2025-08-12
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing motor core stacking fixtures are complex in structure, inconvenient to operate, and prone to damaging the core. They also have poor versatility, resulting in resource waste and low production efficiency.

Method used

The tooling adopts a structural design including first and second end faces 1 and second end face 3, and positioning ribs 2. The positioning ribs are connected to the fan-shaped surface, and deformation grooves and retaining parts are set to realize flexible deformation and disassembly connection of the tooling. This simplifies the structure of the tooling. Furthermore, by setting the first and second end faces to connect with the positioning ribs, the structure of the tooling is simplified, and the weight and operation difficulty are reduced.

Benefits of technology

This design achieves a simple tooling structure, convenient operation, reduced damage to the motor core, and improved production efficiency and resource utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a motor iron core stacking frock belongs to motor iron core manufacturing technical field, this frock includes first end surface, second end surface, the first end surface with between the second end surface is connected through the positioning rib, the first end surface outside is provided with the retaining member of detachable connection, removes the retaining member, and the positioning rib deformation contracts, and separates with motor iron core. The application controls the deformation and reset of frock through retaining member, simple structure, convenient operation, reduces the damage of stacking frock to motor iron core, improves product pass rate and production efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of motor core manufacturing technology, specifically relating to a general tooling for stacking motor stator and rotor cores. Background Technology

[0002] The motor core, comprising the stator core and rotor core, is the core component of the motor, and its manufacturing process directly affects the motor's efficiency, noise, temperature rise, and other performance characteristics. Motor cores are typically made by stamping and stacking silicon steel sheets, and tooling is often required to ensure precision during manufacturing.

[0003] Due to the diverse specifications of motor cores, existing stacking fixtures have poor versatility, requiring different stacking fixtures to meet the needs of different motor core specifications. The utilization rate of individual fixtures is low, resulting in resource waste and increased costs. During the stacking process of stator and rotor cores for motors, the outer circle of traditional stacking fixtures can easily damage the inner circle of the stator and rotor cores when they are pulled upwards, affecting product quality. In order to avoid collisions, extra care must be taken when removing the fixtures, which increases the difficulty of operation and reduces production efficiency.

[0004] Therefore, there is an urgent need for a stacking fixture that is simple in structure, easy to operate, and can be quickly arranged and removed on site without damaging the iron core. Utility Model Content

[0005] The technical problem to be solved by this application is to address the fact that the existing motor core stacking fixtures are complex in structure, inconvenient to operate, and prone to damaging the motor core.

[0006] The technical solution adopted by this application to solve its technical problem is: a motor core stacking fixture, including: a first end face and a second end face, the first end face and the second end face are connected by a positioning rib, and a detachable retaining member is provided on the outer side of the first end face. After the retaining member is removed, the positioning rib deforms and shrinks, and separates from the motor core.

[0007] Preferably, the first end face is composed of a plurality of sector-shaped surfaces, and gaps are provided between the plurality of sector-shaped surfaces, and the positioning ribs correspond one-to-one with the sector-shaped surfaces.

[0008] Preferably, the first end face is provided with a mounting groove, and the retainer is installed in the mounting groove for the positioning rib to be reset after deformation.

[0009] Preferably, the positioning rib is provided with a deformation groove for elastic deformation of the positioning rib.

[0010] Preferably, the second end face is a complete circular ring.

[0011] Preferably, the second end face is composed of a plurality of fan-shaped surfaces, and gaps are provided between the plurality of fan-shaped surfaces, and the positioning ribs correspond one-to-one with the fan-shaped surfaces.

[0012] Preferably, the second end face is provided with a mounting groove, and the retainer is installed in the mounting groove.

[0013] Preferably, the positioning rib is welded to or detachably connected to the first end face and the second end face.

[0014] The beneficial effects of this invention are as follows: by setting a first end face and a second end face and connecting them with positioning ribs, the tooling structure is simplified to the greatest extent, thereby reducing the weight of the stacking tooling; the tooling with a simple structure and lighter weight is also easier to operate; the deformation and restoration of the tooling are controlled by retaining components, resulting in a simple structure and convenient operation; the deformation of the positioning ribs allows the stacking tooling to separate from the motor core, reducing damage to the motor core when removing the stacking tooling, ensuring production quality while improving production efficiency. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present application and form part of the specification. They are used together with the embodiments of the present application to explain the application and do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is an assembly diagram of a motor core stacking fixture according to this application.

[0017] Figure 2 This is an exploded view of a motor core stacking fixture according to this application.

[0018] Figure 3 This is an exploded view of another embodiment of a motor core stacking fixture according to this application.

[0019] Figure 4 This is a partial schematic diagram of another embodiment of a motor core stacking fixture according to this application. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In this specification, identical parts are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "multiple" means two or more.

[0022] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example 1: As Figure 1 , Figure 2 The illustrated motor core stacking fixture includes a first end face 1 and a second end face 3. The first end face 1 is composed of several sector-shaped surfaces 5, which can be combined to form an annular first end face 1, with gaps between the sector-shaped surfaces 5. The second end face 3 is a complete annular surface.

[0024] Several positioning ribs 2 correspond one-to-one with the sector-shaped surface 5, used to connect the sector-shaped surface 5 and the second end face 3. The positioning ribs 2, sector-shaped surface 5, and second end face 3 are welded to form an integrated tooling frame. In other embodiments, the positioning ribs 2 can also be detachably connected. The positioning ribs 2 have deformation grooves 7 in the direction close to the inner side of the stacked tooling, giving the positioning ribs 2 a unique elastic deformation function. The positioning ribs 2 undergo elastic deformation through the deformation grooves 7, thereby causing the outer diameter of the positioning ribs 2 to shrink, effectively avoiding the risk of friction and damage between the outer circle of the positioning ribs 2 and the inner circle of the stator and rotor cores.

[0025] A mounting groove 6 is provided on the outer side of the first end face 1 for mounting the retainer 4. In one embodiment, the mounting groove 6 is annular, that is, each sector surface 5 has an arc-shaped mounting groove 6, and the arc grooves of all sector surfaces 5 are assembled together to form a complete annular mounting groove 6; the retainer 4 is a corresponding annular shape and is detachably connected to the mounting groove 6. When the stacked tooling needs to be elastically contracted and deformed, the retainer 4 is removed from the mounting groove 6. When the stacked tooling needs to be reset from the elastically deformed state, the retainer 4 is simply installed in the mounting groove 6.

[0026] The stacking fixture in this embodiment has a simple structure, is flexible and convenient to operate, improves work efficiency, and reduces damage to the motor core.

[0027] Example 2 is a further optimization based on Example 1. In Example 2, the second end face 3 is improved to be composed of several fan-shaped surfaces 5, which can be combined to form a circular second end face 3, with gaps between the fan-shaped surfaces 5. Several positioning ribs 2 correspond one-to-one with the fan-shaped surfaces 5, used to connect the fan-shaped surfaces 5 of the first end face 1 and the fan-shaped surfaces 5 of the second end face 3. An installation groove 6 is provided on the outer side of the second end face 3 for installing the retaining member 4. In one embodiment, the installation groove 6 is circular, that is, each fan-shaped surface 5 has a section of arc-shaped installation groove 6, and the arc grooves of all the fan-shaped surfaces 5 are assembled together to form a complete circular installation groove 6; the retaining member 4 is detachably connected to the installation groove 6.

[0028] In Embodiment 2, each sector surface 5 of the first end face 1 corresponds one-to-one with each sector surface 5 of the second end face 3, and they are connected by positioning ribs 2. After a sector surface 5 of the first end face 1 and a sector surface 5 of the second end face 3 are connected to a positioning rib 2, they form an independent component. Each independent component can move independently. In this embodiment, there are 6 independent components. In actual use, different numbers of independent components can be set according to different motor core specifications and the size of the stacking fixture.

[0029] In this embodiment, the stacking fixture is connected to a first end face 1 with a sector surface 5 and a second end face 3 with a positioning rib 2 to form an independent component. Each independent component can be moved independently, which further improves the operational flexibility of the fixture. Moving each independent component individually can minimize damage to the motor core.

[0030] In the embodiments disclosed in this application, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0031] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A tooling for stacking motor cores, characterized in that, include: A first end face and a second end face are connected by a positioning rib. A detachable retainer is provided on the outer side of the first end face. After the retainer is removed, the positioning rib deforms and shrinks, separating from the motor core.

2. The motor core stacking fixture as described in claim 1, characterized in that: The first end face is composed of several fan-shaped surfaces, and gaps are provided between the fan-shaped surfaces. The positioning ribs correspond one-to-one with the fan-shaped surfaces.

3. The motor core stacking fixture as described in claim 2, characterized in that: The first end face is provided with a mounting groove, and the retainer is installed in the mounting groove for the positioning rib to be reset after deformation.

4. The motor core stacking fixture as described in claim 3, characterized in that: The positioning rib is provided with a deformation groove for elastic deformation of the positioning rib.

5. The motor core stacking fixture as described in claim 4, characterized in that: The second end face is a complete circular ring.

6. The motor core stacking fixture as described in claim 3, characterized in that: The second end face is composed of several fan-shaped surfaces, and gaps are provided between the fan-shaped surfaces. The positioning ribs correspond one-to-one with the fan-shaped surfaces.

7. The motor core stacking fixture as described in claim 6, characterized in that: The second end face is provided with a mounting groove, and the retainer is installed in the mounting groove.

8. The motor core stacking fixture as described in any one of claims 1-7, characterized in that: The positioning rib is welded to or detachably connected to the first end face and the second end face.