Large permanent magnet motor assembly tool

By introducing an adjustment and flatness detection mechanism into the assembly fixture of large permanent magnet motors, the problems of low assembly accuracy and efficiency have been solved, ensuring the stable operation and service life of the motor.

CN224204947UActive Publication Date: 2026-05-05ZHENGZHOU SHANG DIAN DIANJI SCI & TECH DEV C
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU SHANG DIAN DIANJI SCI & TECH DEV C
Filing Date
2025-05-09
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The assembly of bearings in large permanent magnet motors is difficult. Traditional assembly tooling lacks flexible adjustment mechanisms and flatness detection, resulting in low assembly accuracy, low efficiency, and easy generation of vibration and noise.

Method used

An assembly fixture including an adjustment mechanism and a flatness detection mechanism was designed. The adjustment mechanism achieves precise adjustment of the bearing through a support plate, roller and rotating rod, and the flatness detection mechanism monitors the flatness of the mating surface in real time through side wall and circumferential detection parts.

Benefits of technology

This enabled precise bearing installation, reduced assembly deviations, improved assembly efficiency and motor operational stability, and reduced vibration and noise.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of motor assembling, in particular to a large permanent magnet motor assembling tool which comprises a tool support, an adjusting mechanism is installed on the tool support and comprises a supporting plate, a roller and two rotating rods, and the two rotating rods are rotationally arranged on the two sides of the tool support. The two supporting plates are fixedly connected to the side wall of the rotating rod, and the rollers are rotationally arranged on the supporting plates; the side wall of the tool support is provided with a flatness detection mechanism, and the flatness detection mechanism is divided into a side wall detection member and a circumference detection member. The beneficial effects of the utility model are that the tool can be accurately adjusted according to bearings with different specifications and shapes by using the adjusting mechanism; it is ensured that the bearing can be smoothly positioned in the installation process, and the problems of vibration and noise caused by assembly deviation are solved. And meanwhile, the adjusting process is simplified by introducing the jack, and the assembling efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of motor assembly, specifically relating to a large permanent magnet motor assembly fixture. Background Technology

[0002] In the manufacturing of large permanent magnet motors, precise bearing assembly is a crucial step in ensuring smooth motor operation and reducing vibration and noise. However, due to the large size of large permanent magnet motors, the required bearing specifications also increase accordingly, which undoubtedly increases the difficulty and complexity of assembly. Traditional assembly methods mostly rely on manual operation, which is not only inefficient but also makes it difficult to guarantee assembly accuracy and consistency.

[0003] To address this issue, various large permanent magnet motor assembly fixtures have emerged on the market. However, these fixtures often suffer from numerous structural and functional shortcomings. For example, some fixtures lack flexible adjustment mechanisms, making it impossible to precisely adjust them according to the size and shape of the bearings, resulting in improper bearing installation or deviations during assembly. Furthermore, while some fixtures possess adjustment functions, their adjustment mechanisms are complex in design and cumbersome to operate, increasing assembly time and reducing assembly efficiency.

[0004] In terms of inspection, traditional assembly tooling often lacks effective flatness testing mechanisms. During bearing assembly, if the mating surfaces between the bearing and the motor shaft or bearing housing are uneven, it will cause vibration and noise during motor operation, and may even damage the motor. However, most existing tooling equipment is not equipped with flatness testing mechanisms, or its testing mechanisms are not accurate enough to detect and correct deviations in the assembly process in a timely manner. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art, which fails to fully meet the requirements due to the inflexible adjustment mechanism and lack of flatness detection mechanism, thereby realizing a large permanent magnet motor assembly fixture.

[0006] To achieve the above-mentioned objectives, the technical solution of this utility model is: a large permanent magnet motor assembly fixture, comprising: a fixture support, on which an adjustment mechanism is mounted, the adjustment mechanism comprising a support plate, a roller and a rotating rod, two rotating rods being rotatably disposed on both sides of the fixture support, two support plates being respectively fixedly connected to the side walls of the rotating rods, and the roller being rotatably disposed on the support plate;

[0007] The tooling bracket is equipped with a flatness detection mechanism on its side wall, which is divided into a side wall detection component and a circumferential detection component.

[0008] In the aforementioned large permanent magnet motor assembly fixture, the bottom of the fixture support is provided with a moving track, and the bottom of the fixture support is provided with a sliding groove for sliding on the moving track.

[0009] In the aforementioned large permanent magnet motor assembly fixture, the adjustment mechanism further includes a sliding rod, a sliding sleeve, a support rod, and a jack. The sliding rod is symmetrically and fixedly connected to one side of the fixture support. The sliding sleeve is slidably sleeved on the outer surface of the sliding rod. The two ends of the support rod are respectively fixed to the two sliding sleeves.

[0010] In the aforementioned large permanent magnet motor assembly fixture, a jack is fixed to the side wall of the fixture support. The top of the jack is fixedly connected to the middle position of the bottom of the support rod. Adjusting rods are hinged to both ends of the support rod via pins. A transmission plate is hinged to the adjusting rod via pins. The end of the transmission plate away from the adjusting rod is fixed to the rotating rod.

[0011] In the aforementioned large permanent magnet motor assembly fixture, the side wall detection component and the circumferential detection component are sequentially fixedly connected to the side wall of the fixed block from top to bottom. Both the side wall detection component and the circumferential detection component include a connecting rod, a pressure gauge, a sliding block, a fixed block, a roller, and a telescopic rod. The fixed block is fixedly connected to the side wall of the fixed block, and the connecting rod is rotatably connected to one side of the fixed block. The side wall of the fixed block is provided with bolts for fixing the connecting rod. The sliding block is slidably sleeved on the outer surface of the connecting rod, and the side wall of the sliding block is provided with bolts for fixing its own sliding.

[0012] In the aforementioned large permanent magnet motor assembly fixture, the pressure gauge is connected to the sliding block by bolts, and a telescopic rod is installed on the pressure gauge. A roller is rotatably connected to the end of the telescopic rod away from the pressure gauge.

[0013] In the aforementioned large permanent magnet motor assembly fixture, the pressure gauge, roller, and telescopic rod on the side wall detection component are arranged horizontally, while the pressure gauge, roller, and telescopic rod on the circumferential detection component are arranged vertically.

[0014] Compared with the prior art, the large permanent magnet motor assembly fixture of this utility model has at least the following beneficial effects:

[0015] This utility model discloses a large permanent magnet motor assembly fixture. Through the use of an adjustment mechanism, the fixture can be precisely adjusted to accommodate bearings of different specifications and shapes, ensuring smooth positioning of the bearings during installation and reducing vibration and noise problems caused by assembly deviations. Simultaneously, the introduction of a jack simplifies the adjustment process and improves assembly efficiency.

[0016] The flatness detection mechanism, including side wall detection components and circumferential detection components, enables the tooling to monitor the flatness of the mating surfaces of the bearing and the motor shaft or bearing housing in real time during the assembly process, promptly detect and correct assembly deviations, thereby ensuring the operational stability and service life of the motor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front view schematic diagram of the adjustment mechanism of this utility model;

[0019] Figure 3 This is a front view schematic diagram of the flatness detection mechanism of this utility model;

[0020] Figure 4 This is a side view schematic diagram of the flatness detection mechanism of this utility model.

[0021] In the diagram: 1. Tooling bracket; 2. Moving track; 3. Roller; 4. Adjusting mechanism; 401. Sliding rod; 402. Sliding sleeve; 403. Support rod; 404. Jack; 405. Adjusting rod; 406. Transmission plate; 407. Support plate; 408. Rotating rod; 5. Flatness detection mechanism; 501. Fixed plate; 502. Connecting rod; 503. Pressure gauge; 504. Sliding block; 505. Fixed block; 506. Roller; 507. Telescopic rod. Detailed Implementation

[0022] The assembly fixture for the large permanent magnet motor of this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] This embodiment discloses a large permanent magnet motor assembly fixture, which fails to fully meet the requirements due to the inflexibility of the adjustment mechanism and the lack of a flatness detection mechanism. Referring to... Figure 1-4The fixture mainly includes a tooling bracket 1, on which an adjusting mechanism 4 is mounted. The adjusting mechanism 4 includes a support plate 407, a roller 3, and rotating rods 408. Two rotating rods 408 are rotatably mounted on both sides of the tooling bracket 1, and two support plates 407 are respectively fixedly connected to the side walls of the rotating rods 408. The roller 3 is rotatably mounted on the support plate 407. A flatness detection mechanism 5 is installed on the side wall of the tooling bracket 1. The flatness detection mechanism 5 is divided into a side wall detection component and a circumferential detection component. A moving track 2 is provided at the bottom of the tooling bracket 1, and a groove is provided at the bottom of the tooling bracket 1 for sliding on the moving track 2.

[0025] The side wall of the tooling bracket 1 is equipped with a flatness detection mechanism 5, which is divided into a side wall detection component and a circumferential detection component. It can monitor the flatness of the mating surface between the bearing and the motor shaft or bearing housing in real time, ensuring no deviation during assembly and improving the running stability and service life of the motor.

[0026] To facilitate the movement and positioning of the tooling, a moving track 2 is provided at the bottom of the tooling bracket 1, and a sliding groove is provided at the bottom of the tooling bracket 1 for sliding on the moving track 2, so that the tooling can be easily moved and positioned on the production line, thereby improving production efficiency.

[0027] Reference Figure 1-2 The adjusting mechanism 4 also includes a sliding rod 401, a sliding sleeve 402, a support rod 403, and a jack 404. The sliding rod 401 is symmetrically fixedly connected to one side of the tooling bracket 1. The sliding sleeve 402 is slidably sleeved on the outer surface of the sliding rod 401. The two ends of the support rod 403 are respectively fixed to the two sliding sleeves 402. The jack 404 is fixedly fixed to the side wall of the tooling bracket 1. The top of the jack 404 is fixedly connected to the middle position of the bottom of the support rod 403. The two ends of the support rod 403 are hinged to adjusting rods 405 by pins. The adjusting rod 405 is hinged to a transmission plate 406 by pins. The end of the transmission plate 406 away from the adjusting rod 405 is fixed to a rotating rod 408.

[0028] The sliding rod 401 is symmetrically fixed to one side of the tooling bracket 1, providing a stable support base for the entire adjustment mechanism. The sliding sleeve 402 is slidably sleeved on the outer surface of the sliding rod 401, and can move freely on the sliding rod 401, thereby realizing flexible adjustment of the position of the support rod 403. The two ends of the support rod 403 are fixed to the two sliding sleeves 402 respectively, forming a stable support structure.

[0029] To further enhance the stability and adjustment capability of the adjustment mechanism, a jack 404 is fixed to the side wall of the tooling bracket 1. The top of the jack 404 is fixedly connected to the middle position of the bottom of the support rod 403. Through the extension and retraction of the jack, the overall position of the support rod 403 can be precisely adjusted. This design not only improves the stability of the adjustment mechanism but also makes the adjustment process simpler and faster.

[0030] Furthermore, both ends of the support rod 403 are hinged to adjusting rods 405 via pins, and the adjusting rods 405 are in turn hinged to a transmission plate 406 via pins. The end of the transmission plate 406 furthest from the adjusting rod 405 is fixed to the rotating rod 408. This design allows for precise adjustment of the position of the rotating rod 408 and the roller 3 on the support plate 407 through the coordinated action of the support rod 403, adjusting rod 405, and transmission plate 406 when the jack extends or retracts. This adjustment method is not only flexible and convenient but also ensures the stability and accuracy of the bearing during assembly.

[0031] Reference Figure 1 and Figure 3-4 The sidewall detection component and the circumferential detection component are fixedly connected to the sidewall of the fixed block 505 from top to bottom. Both the sidewall detection component and the circumferential detection component include a connecting rod 502, a pressure gauge 503, a sliding block 504, a fixed block 505, a roller 506, and a telescopic rod 507. The fixed block 505 is fixedly connected to the sidewall of the fixed plate 1. The connecting rod 502 is rotatably connected to one side of the fixed block 505. The sidewall of the fixed block 505 is provided with bolts for fixing the connecting rod 502. The sliding block 504 is slidably sleeved on the outer surface of the connecting rod 502. The sidewall of the sliding block 504 is provided with bolts for fixing its own sliding. The pressure gauge 503 is connected to the sliding block 504 by bolts. A telescopic rod 507 is installed on the pressure gauge 503. The end of the telescopic rod 507 away from the pressure gauge 503 is rotatably connected to the roller 506. The pressure gauge 503, roller 506 and telescopic rod 507 on the side wall testing component are arranged horizontally, while the pressure gauge 503, roller 506 and telescopic rod 507 on the circumferential testing component are arranged vertically.

[0032] Both the sidewall detection component and the circumferential detection component adopt the same structural design. The connecting rod 502 is rotatably connected to one side of the fixed block 505 and is fixed by bolts on the sidewall of the fixed block 505, ensuring the stability and flexibility of the connecting rod 502. The sliding block 504 is slidably sleeved on the outer surface of the connecting rod 502 and its sliding position can be fixed by bolts on the sidewall, thereby achieving precise adjustment of the detection position.

[0033] The pressure gauge 503 is connected to the sliding block 504 by bolts, and can detect the pressure applied by the roller 506 to the assembly surface in real time and convert it into a digital signal for display. The telescopic rod 507 is connected between the pressure gauge 503 and the roller 506, and can be extended and retracted according to the shape and position of the assembly surface to ensure that the roller 506 can fit tightly against the assembly surface for testing.

[0034] The pressure gauge 503, roller 506, and telescopic rod 507 on the sidewall inspection component are arranged horizontally, mainly used to inspect the flatness of the sidewall of the assembly surface; while the pressure gauge 503, roller 506, and telescopic rod 507 on the circumferential inspection component are arranged vertically, mainly used to inspect the circumferential flatness of the assembly surface. This design allows the inspection mechanism to fully cover all parts of the assembly surface, ensuring the accuracy and reliability of the inspection results.

[0035] The working principle of this utility model's large permanent magnet motor assembly fixture is as follows: When using this device, the motor bearing is first placed on the roller 3 through an external device. The bearing can rotate on the roller 3 to adjust its direction. Depending on the size of the bearing, the jack 404 is pressed, which lifts the support rod 403. The support rod 403 drives the adjusting rod 405 to rotate, which in turn drives the transmission plate 406 to rotate. The transmission plate 406 drives the rotating rod 408 to rotate, and the rotation of the rotating rod 408 drives the support plate 407 to rotate, thereby adjusting the distance between the two rollers 3 to facilitate smoother rotation of the bearing. The rotation of the roller 3 also allows for adjustment of the bearing height, facilitating better installation of the bearing.

[0036] The pressure gauge 503, roller 506, and telescopic rod 507 on the side wall detection component are arranged horizontally, while the pressure gauge 503, roller 506, and telescopic rod 507 on the circumferential detection component are arranged vertically. After the bearing is installed on the motor, the connecting rod 502 is rotated so that the two rollers 506 are in contact with the intersection of the bearing and the motor. Then, the bearing on the roller 3 is rotated, and the side wall and outer surface of the bearing contact the two rollers 506. When encountering uneven installation, the pressure is transmitted to the pressure gauge, which is convenient for the staff to adjust. After the adjustment is completed, the bearing is fixed on the motor.

[0037] It should be noted that, in actual implementation, the structure depicted in the accompanying drawings is not a fixed or unchanging embodiment. The components of the embodiments of this invention described and shown in these drawings can typically be arranged and designed in various different configurations. Furthermore, the accompanying drawings and abstract drawings are merely illustrative and do not represent the specific structure or actual quantity in a concrete implementation.

[0038] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "a" or "an" in this specification and claims does not necessarily indicate a limitation on quantity. Terms such as "comprising" or "including" mean that the element or component preceding the word encompasses the element or component listed following the word and its equivalents, without excluding other elements or components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0039] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed by the present invention without exceeding the protection scope of the present invention.

Claims

1. A large permanent magnet motor assembly fixture, characterized in that: include: The tooling bracket (1) is equipped with an adjustment mechanism (4). The adjustment mechanism (4) includes a support plate (407), a roller (3) and a rotating rod (408). The two rotating rods (408) are rotatably arranged on both sides of the tooling bracket (1). The two support plates (407) are respectively fixedly connected to the side walls of the rotating rods (408). The roller (3) is rotatably arranged on the support plate (407). The tooling bracket (1) is equipped with a flatness detection mechanism (5) on its side wall. The flatness detection mechanism (5) is divided into a side wall detection component and a circumferential detection component.

2. The large permanent magnet motor assembly fixture according to claim 1, characterized in that: The tooling bracket (1) is provided with a moving track (2) at its bottom, and the tooling bracket (1) is provided with a sliding groove for sliding on the moving track (2) at its bottom.

3. The large permanent magnet motor assembly fixture according to claim 1, characterized in that: The adjustment mechanism (4) further includes a sliding rod (401), a sliding sleeve (402), a support rod (403), and a jack (404). The sliding rod (401) is symmetrically fixedly connected to one side of the tooling bracket (1). The sliding sleeve (402) is slidably sleeved on the outer surface of the sliding rod (401). The two ends of the support rod (403) are respectively fixed to the two sliding sleeves (402).

4. The large permanent magnet motor assembly fixture according to claim 3, characterized in that: A jack (404) is fixed to the side wall of the tooling bracket (1). The top of the jack (404) is fixedly connected to the middle position of the bottom of the support rod (403). The two ends of the support rod (403) are hinged to the adjusting rod (405) by a pin. The adjusting rod (405) is hinged to the transmission plate (406) by a pin. The end of the transmission plate (406) away from the adjusting rod (405) is fixed to the rotating rod (408).

5. The large permanent magnet motor assembly fixture according to claim 1, characterized in that: The sidewall detection component and the circumferential detection component are fixedly connected to the sidewall of the fixed block (505) from top to bottom. The sidewall detection component and the circumferential detection component each include a connecting rod (502), a pressure gauge (503), a sliding block (504), a fixed block (505), a roller (506), and a telescopic rod (507). The fixed block (505) is fixedly connected to the sidewall of the fixed plate (1). The connecting rod (502) is rotatably connected to one side of the fixed block (505). The sidewall of the fixed block (505) is provided with bolts for fixing the connecting rod (502). The sliding block (504) is slidably sleeved on the outer surface of the connecting rod (502). The sidewall of the sliding block (504) is provided with bolts for fixing its own sliding.

6. The large permanent magnet motor assembly fixture according to claim 5, characterized in that: The pressure gauge (503) is connected to the sliding block (504) by bolts. A telescopic rod (507) is installed on the pressure gauge (503). A roller (506) is rotatably connected to the end of the telescopic rod (507) away from the pressure gauge (503).

7. The large permanent magnet motor assembly fixture according to claim 6, characterized in that: The pressure gauge (503), roller (506) and telescopic rod (507) on the side wall detection component are arranged horizontally, while the pressure gauge (503), roller (506) and telescopic rod (507) on the circumferential detection component are arranged vertically.