Novel stator punching sheet skewed slot pre-tightening overlying tool

By using a new tooling with inclined positioning of tightly combined grooves during the stator punching process, the problem of insufficient limit in the stator core stacking is solved, and efficient and safe stator stacking operation is achieved, and product quality and production efficiency are improved.

CN223156915UActive Publication Date: 2025-07-25JIANGSU WEIBRUICHUANG POWER TECH CO LTD
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Patent Information

Application Number
CN202422064076.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2025-07-25
Estimated Expiration
2034-08-26

AI Technical Summary

Technical Problem

The lack of limit structure during the rolling process of existing stator cores leads to misalignment of the stator punching sheets, problems with the size of the mandrel and core sleeves, resulting in difficulty in assembly operation, low efficiency, low pass rate, and safety hazards.

Method used

A new type of pre-stitching pressing tooling for stator punching chutes is designed, including a bottom placement support assembly, a main body limit fitting placement assembly and an upper end pressing plate assembly. The inclined positioning tight combination groove is used to accurately match the stator punching plate to improve the placement accuracy and tightness and ensure structural accuracy and safety.

Benefits of technology

It improves the coordination accuracy and safety of the stator stacking process, reduces production costs, enhances the quality and processing efficiency of stator products, and reduces the cumbersomeness and safety risks of manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor stator and rotor installation, in particular to a novel stator punching skewed slot pre-tightening and laminating tool. According to the technical scheme, the device comprises a bottom containing supporting assembly, a main body limiting matching containing assembly and an upper end pressing plate assembly, and the bottom containing supporting assembly is composed of a first supporting base, a second supporting matching base and a third supporting containing limiting base which are the same in boundary dimension; and stator matching placement grooves are formed in the center positions of the third supporting placement limiting seat and the second supporting matching seat, stator punching sheets are placed in the stator matching placement grooves, and the lower end of the main body limiting matching placement assembly is connected and combined with the interior of the first supporting base. The utility model has the advantages that the tightness between the stator punching sheets is better when the stator punching sheets are integrally placed, not only is the placement operation during the lamination of stators convenient, but also the structural precision during the combination can be ensured, the product quality of the stators is better, and the production and the processing are more convenient.
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Description

Technical Field

[0001] The utility model relates to the technical field of installation of motor stators and rotors, in particular to a novel pre-tightening laminated tooling for skewed slots of stator punching sheets. Background Art

[0002] The stator core is an important part of the magnetic circuit of a motor, and the stator core is made by laminating stator punching sheets. When laminating the stator punching sheets, there is a lack of a limiting structure, resulting in misalignment of the stator punching sheets. The problems of the sizes of the mandrel and the core sleeve make the assembly operation difficult, resulting in the unsuccessful production of the stator core, low efficiency, and unqualified qualification rate. In the process of laminating the stator of the existing new energy hydrogen pump motor, in order to improve the qualification rate of stator lamination, during the stator lamination process, generally, manual lamination is first carried out, and then a simple tooling is used for fixation, and rivets are used for percussion lamination. This is not efficient, the operation is relatively cumbersome, and it is easy to cause accidental injury due to improper manual operation, and the safety during the production process cannot be guaranteed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a novel pre-tightening laminated tooling for skewed slots of stator punching sheets. It is provided with inclined positioning and tight combination grooves at the inner matching positions of the placement positions of the stator punching sheets. During use, it can be accurately limited and matched with the stator punching sheets, with higher matching precision during placement, better tightness between the stator punching sheets during overall placement, not only facilitating the placement operation during stator lamination, but also ensuring the structural precision during combination, making the product quality of the stator better, more convenient during production and processing, improving the overall safety during the processing process, and reducing the overall processing cost.

[0004] The technical solution of the utility model is as follows:

[0005] A new type of stator punching sheet skewed slot pre-tightening stacking tooling, characterized in that: it includes a bottom placement support component, a main body limit and cooperation placement component, and an upper pressing plate component. The bottom placement support component is composed of a first support base, a second support cooperation seat, and a third support placement limit seat with the same outer dimensions. The center positions of the third support placement limit seat and the second support cooperation seat are provided with stator cooperation placement grooves, and stator punching sheets are placed in the stator cooperation placement grooves. The lower end of the main body limit and cooperation placement component is connected and combined with the inside of the first support base, and the upper end of the main body limit and cooperation placement component is connected and combined with the upper pressing plate component. The upper pressing plate component is composed of a first fastening combined pressing plate and a second fastening combined pressing plate. The main body limit and cooperation placement component is composed of a core sleeve and a core shaft guide key plate. The core sleeve is composed of a semi-cylindrical first core sleeve, a second core sleeve, and a core shaft. The second core sleeve is provided with a combined placement groove that cooperates with the core shaft guide key plate. The outer side of the core shaft guide key plate is provided with a combined precise inclined notch structure, and the outer sides of the first core sleeve and the second core sleeve form a cylindrical structure.

[0006] Further, a combined guide precise cooperation structure is provided on the combined joint surface of the first core sleeve and the second core sleeve.

[0007] Further, mounting and fixing cooperation holes are provided on both the bottom placement support component and the upper pressing plate component.

[0008] Further, the lower end of the bottom placement support component is provided with an overall placement stable cooperation anti-slip groove.

[0009] The beneficial effects of the present utility model:

[0010] In the present utility model, an inclined positioning and tight combination groove is provided at the inner cooperation position of the stator punching sheet placement position. During use, it can perform precise limit cooperation with the stator punching sheet, with higher cooperation accuracy during placement, better tightness between the stator punching sheets during overall placement, which not only facilitates the placement operation during stator stacking, but also can ensure the structural accuracy during combination, making the product quality of the stator better, more convenient during production and processing, improving the overall safety during the processing process, and reducing the overall processing cost. Description of the Drawings

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0012] Figure 2 It is a structural schematic diagram of the upper pressing plate component in the present utility model;

[0013] Figure 3 It is a structural schematic diagram of the main body limit and cooperation placement component in the present utility model;

[0014] Figure 4 This is a schematic structural diagram of the bottom placement support component in the present utility model;

[0015] In the figure: 1. First fastening combined pressing plate, 2. Second fastening combined pressing plate, 3. Core sleeve, 4. Core shaft guiding key plate, 5. Stator punching, 6. Third support placement limiting seat, 7. Second support fitting seat, 8. First support base, 31. First core sleeve, 32. Second core sleeve, 33. Core shaft. Specific implementation manner

[0016] As Figures 1 to 4 shown, a novel stator punching skewed slot pre-tightening stacking tooling includes a bottom placement support component, a main body limiting and fitting placement component, and an upper pressing plate component. The bottom placement support component is composed of a first support base 8, a second support fitting seat 7, and a third support placement limiting seat 6 with the same outer dimensions. When combined, they can make the operation during the processing easier, reduce the difficulty of producing this component, and make the production cost lower. A stator fitting placement groove is provided at the central positions of the third support placement limiting seat 6 and the second support fitting seat 7, and the stator punching 5 is placed in the stator fitting placement groove to ensure higher fitting accuracy of the reference structure during placement. The lower end of the main body limiting and fitting placement component is connected and combined with the inside of the first support base 8, and the upper end of the main body limiting and fitting placement component is connected and combined with the upper pressing plate component. The upper pressing plate component is composed of a first fastening combined pressing plate 1 and a second fastening combined pressing plate 2. The main body limiting and fitting placement component is composed of a core sleeve 3 and a core shaft guiding key plate 4. The core sleeve 3 is composed of a semi-cylindrical first core sleeve 31, a second core sleeve 32, and a core shaft 33. A combined placement groove that cooperates with the core shaft guiding key plate 4 is provided on the second core sleeve 32. A combined precise inclined notch structure is provided on the outer side of the core shaft guiding key plate 4, which can be precisely combined with the mating groove on the stator punching 5 during use. The inclined structure can make the placement smoothness during mating better, the fitting accuracy during stacking more reliable, the overall stacking fitting area larger, and the combined stability more reliable. The outer sides of the first core sleeve 31 and the second core sleeve 32 form a cylindrical structure. It is provided with an inclined positioning and tight combination groove at the inner mating position of the stator punching placement position, which can be precisely limited and mated with the stator punching during use, with higher fitting accuracy during placement, better tightness between the stator punchings during overall placement, which is not only convenient for the placement operation during stator stacking, but also can ensure the structural accuracy during combination, making the product quality of the stator better, more convenient during production and processing, improving the overall safety during the processing, and reducing the overall processing cost.

[0017] Preferably, a combined guiding and precise fitting structure is provided on the combined fitting surface of the first core sleeve 31 and the second core sleeve 32, so that the fitting accuracy during their combination is better, and the combination operation during fitting is more convenient.

[0018] Preferably, mounting and fixing fitting holes are provided on both the bottom placing and supporting assembly and the upper pressing plate assembly, and can be firmly connected to other components during processing as required, facilitating intelligent control operations.

[0019] Preferably, an overall placing stable fitting anti-slip groove is provided at the lower end of the bottom placing and supporting assembly, which has better stability when placed in cooperation with the workbench, and higher safety during overall processing and use.

[0020] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements or replacements can be made, and these improvements or replacements should also be regarded as the protection scope of the present invention.

Claims

1. A new type of stator punching skewed slot pre-tightening laminated tooling, characterized in that: It includes a bottom placement support component, a main body limit and fit placement component, and an upper pressing plate component. The bottom placement support component is composed of a first support base (8), a second support and fit seat (7), and a third support placement limit seat (6) with the same outer dimensions. A stator fit placement groove is provided at the central positions of the third support placement limit seat (6) and the second support and fit seat (7). A stator punching sheet (5) is placed in the stator fit placement groove. The lower end of the main body limit and fit placement component is connected and combined with the inside of the first support base (8), and the upper end of the main body limit and fit placement component is connected and combined with the upper pressing plate component. The upper pressing plate component is composed of a first fastening combined pressing plate (1) and a second fastening combined pressing plate (2). The main body limit and fit placement component is composed of a core sleeve (3) and a core shaft guide key plate (4). The core sleeve (3) is composed of a semi-cylindrical first core sleeve (31), a second core sleeve (32), and a core shaft (33). A combined placement groove that cooperates with the core shaft guide key plate (4) is provided on the second core sleeve (32). A combined precise inclined notch structure is provided on the outer side of the core shaft guide key plate (4). The outer sides of the first core sleeve (31) and the second core sleeve (32) form a cylindrical structure.

2. A novel stator punching skewed slot pre-tightening laminated tooling according to claim 1, characterized in that: A combined guide and precise fit structure is provided on the combined joint surface of the first core sleeve (31) and the second core sleeve (32).

3. A novel stator punching skewed slot pre-tightening stacking tooling according to claim 1, characterized in that: Mounting and fixing fit holes are provided on both the bottom placement support component and the upper pressing plate component.

4. A novel stator punching skewed slot pre-tightening laminated tooling according to claim 1, characterized in that: The lower end of the bottom placement support component is provided with an overall placement stable fit anti-slip groove.