Shaded pole motor support positioning groove riveting equipment based on limiting device

The riveting equipment with a positioning groove for the shaded pole motor bracket using a limiting device solves the problems of uneven riveting depth and unstable restoring torque, thereby improving the stability and cost-effectiveness of the riveting process.

CN223970798UActive Publication Date: 2026-03-06KELI MOTOR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The existing riveting process for the positioning slot of the shaded pole motor bracket relies on pressure and time parameters for control, resulting in uneven riveting depth, poor stability of the restoring torque, high scrap rate of some products, and increased production costs.

Method used

The riveting equipment for the positioning groove of the shaded pole motor bracket, which adopts a limiting device, achieves stable fixation of the bracket positioning groove and consistent control of the riveting depth through the combination of the limiting tube and the upper riveting head.

Benefits of technology

It improves the stability of the riveting process, reduces the scrap rate, ensures the consistency of the riveting depth, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor part manufacturing, and discloses a shaded pole motor support positioning groove riveting device based on a limiting device, which comprises an upper riveting head module, a bearing sleeve is fixedly mounted on the upper riveting head module, a coil is fixedly mounted on the inner wall of the bearing sleeve, a riveting lower die holder module is mounted below the upper riveting head module in a penetrating manner, and a riveting lower die holder module is mounted below the riveting lower die holder module. A support positioning groove is formed in the upper portion of the riveting lower die base module, and an upper fixing mechanism is installed above the support positioning groove and connected with the riveting lower die base module through the support positioning groove. During riveting, the bearing sleeve and the platform on the lower die base are closed to form a stable closed space, the closed height is ensured to be constant, scrapped parts are reduced, the closed height can be rapidly calibrated according to different materials or rivet sizes through the joint face of the upper portion of the bearing sleeve and the upper rivet head and the attachment of the fine adjustment gasket, and the riveting efficiency is improved. And the bearing sleeve and the platform on the lower die holder are matched with the fine adjustment gasket, so that the riveting point depth consistency control is realized.
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Description

Technical Field

[0001] This utility model relates to the field of motor component manufacturing technology, specifically to a riveting device for positioning grooves of shaded pole motor brackets based on a limiting device. Background Technology

[0002] Shaded-pole motors, also known as shaded-pole electric motors, are a type of single-phase AC motor, typically using a squirrel-cage type cast aluminum rotor with skewed slots. Based on the different stator shapes and structures, they are further divided into salient-pole shaded-pole motors and non-salient-pole shaded-pole motors.

[0003] The existing riveting process for the positioning slots of shaded-pole motor brackets mainly relies on pressure and time parameter control. However, due to deviations in wall thickness and height at the riveting position during the manufacturing of the positioning slots, the deformation of the positioning slots varies under the same pressure. When the equipment pressure output is unstable, the riveting depth is prone to being too deep or too shallow, resulting in uneven riveting depth, poor stability of the restoring torque of the positioning slots, and severe deformation of the positioning slots (affecting motor assembly). Some products are scrapped due to excessive or insufficient restoring torque and deformation of the riveted positioning slots, which increases production costs and results in a high scrap rate. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a riveting device for the positioning groove of a shaded-pole motor bracket based on a limiting device. This solves the problem mentioned in the background art, where the riveting process for the positioning groove of a shaded-pole motor bracket mainly relies on pressure and time parameter control. However, due to deviations in wall thickness and height at the riveting position during the manufacturing of the positioning groove, the deformation of the positioning groove varies under the same pressure. When the equipment pressure output is unstable, the riveting depth is prone to being too deep or too shallow, resulting in uneven riveting depth, poor stability of the restoring torque of the positioning groove, and severe deformation of the positioning groove (affecting motor assembly). Some products are scrapped due to excessive or insufficient restoring torque and deformation of the riveted positioning groove, thereby increasing production costs and resulting in high scrapping efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a riveting device for a shaded pole motor bracket positioning groove based on a limiting device, comprising an upper riveting head module, a bearing sleeve fixedly installed above the upper riveting head module, a coil fixedly installed on the inner wall of the bearing sleeve, a riveting lower die base module penetratingly installed below the upper riveting head module, a bracket positioning groove provided above the riveting lower die base module, and the bracket positioning groove placed in the positioning groove.

[0008] Furthermore, the upper fixing mechanism is connected to the riveting lower mold base module through the bracket positioning groove.

[0009] Furthermore, the riveting lower die base module includes a lower die base, an upper buckle integrally welded to the upper part of the lower die base, and a base installed at the lower end of the lower die base.

[0010] Furthermore, the upper end of the lower mold base is connected to the upper riveting head module through an upper buckle, and the outer wall of the upper buckle fits into the positioning groove of the bracket.

[0011] Furthermore, a rubber gasket is fixedly attached to the lower surface of the base.

[0012] Furthermore, the upper fixing mechanism includes an upper rivet head, with a fine-adjustment shim attached to the outer wall of the upper rivet head, and multiple sets of riveting teeth fixedly installed on the lower outer wall of the upper rivet head. A limit tube is sleeved on the outer wall of the upper rivet head, with a connecting hole opened above the limit tube, and a limit block fixedly installed below the limit tube.

[0013] Furthermore, the fine-tuning shim is made of silicone.

[0014] Furthermore, the upper riveting head is connected to the lower mold base via riveting teeth, the limiting tube is fastened to the bracket positioning groove via a limiting block, and the limiting tube is connected to the upper riveting head through a connecting hole.

[0015] (III) Beneficial Effects

[0016] This utility model provides a riveting device for the positioning groove of a shaded pole motor bracket based on a limiting device, which has the following advantages:

[0017] The upper rivet head module is installed above the upper buckle on the lower mold base. The bracket positioning groove is fixed by the riveting teeth below the upper rivet head. The upper rivet head is sleeved by the limiting tube and the limiting block on the outer wall of the limiting tube is used for limiting and fixing, thereby improving stability, ensuring a constant closing height, and reducing scrap parts.

[0018] By attaching the upper part of the limiting tube to the fine-tuning shim, the closing height can be quickly calibrated according to different materials or rivet sizes. The lower part of the limiting tube, in conjunction with the fine-tuning shim, allows for consistent control of the rivet depth. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the riveting lower die base module in this utility model;

[0021] Figure 3 This is a schematic diagram of the upper fixing mechanism in this utility model.

[0022] In the diagram: 1. Upper riveting head module; 2. Bearing sleeve; 3. Riveting lower die base module; 31. Lower die base; 32. Upper buckle; 33. Base; 4. Bracket positioning groove; 5. Upper fixing mechanism; 51. Upper riveting head; 52. Fine-tuning shim; 53. Riveting teeth; 54. Limiting tube; 55. Connecting hole; 56. Limiting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 3 This utility model provides a technical solution: a riveting device for a shaded pole motor bracket positioning groove based on a limiting device, including an upper riveting head module 1, a bearing sleeve 2 fixedly installed above the upper riveting head module 1, a coil 3 fixedly installed on the inner wall of the bearing sleeve 2, a riveting lower die base module 4 installed through the lower part of the upper riveting head module 1, a bracket positioning groove 5 provided above the riveting lower die base module 4, an upper fixing mechanism 6 installed above the bracket positioning groove 5, and the upper fixing mechanism 6 connected to the riveting lower die base module 4 through the bracket positioning groove 5.

[0025] The riveting lower die base module 4 includes a lower die base 41. An upper buckle 42 is integrally welded to the upper part of the lower die base 41. A base 43 is installed at the lower end of the lower die base 41. The upper end of the lower die base 41 is connected to the upper riveting head module 1 through the upper buckle 42. The outer wall of the upper buckle 42 fits against the bracket positioning groove 5. A rubber gasket is fixedly attached to the lower surface of the base 43.

[0026] The upper fixing mechanism 6 includes an upper riveting head 61, with a fine-tuning shim 62 attached to the outer wall of the upper riveting head 61. Multiple sets of riveting teeth 63 are fixedly installed on the lower outer wall of the upper riveting head 61. A limiting tube 64 is sleeved on the outer wall of the upper riveting head 61. A connecting hole 65 is opened above the limiting tube 64. A limiting block 66 is fixedly installed below the limiting tube 64. The fine-tuning shim 62 is made of silicone. The upper riveting head 61 is connected to the lower mold base 41 through the riveting teeth 63. The limiting tube 64 is fastened to the bracket positioning groove 5 through the limiting block 66. The limiting tube 64 is connected to the upper riveting head 61 through the connecting hole 65.

[0027] The detailed description of known functions and components is omitted in this disclosure. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of commercially available instruments.

[0028] In summary, the operation steps of the riveting equipment for the positioning slot of the shaded pole motor bracket based on the limiting device are as follows;

[0029] In use, the upper rivet head module 1 is installed above the upper rivet head module 1 via the upper buckle 42 above the lower mold base 41. The bracket positioning groove 5 is fixed by the riveting teeth 63 below the upper rivet head 61. The upper rivet head 61 is sleeved by the limiting tube 64, and the limiting block 66 on the outer wall of the limiting tube 64 is used for limiting and fixing, thereby improving stability, ensuring a constant closing height, and reducing scrap parts. The closing height can be quickly calibrated according to different materials or rivet sizes by the upper part of the limiting tube 64 is attached to the fine-tuning shim 62. The rivet point depth consistency control is achieved by using the limiting block 66 below the limiting tube 64 in conjunction with the fine-tuning shim 62.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cage motor bracket positioning slot riveting equipment based on a limiting device, comprising an upper riveting head module (1), characterized in that: The upper riveting head module (1) is fixedly installed with a bearing sleeve (2) above, the inner wall of the bearing sleeve (2) is fixedly installed with a coil (3), the upper riveting head module (1) is installed with a riveting lower die seat module (4) below, the riveting lower die seat module (4) is provided with a support positioning groove (5) above, and the support positioning groove (5) is installed with an upper fixing mechanism (6) above.

2. The bracket positioning slot riveting equipment of the limit device based shield motor, according to claim 1, characterized in that: The upper fixing mechanism (6) is connected with the riveting lower die seat module (4) through the support positioning groove (5).

3. The cage motor bracket positioning slot riveting equipment based on the limiting device according to claim 2, characterized in that: The riveting lower die seat module (4) comprises a lower die seat (41), the upper end of the lower die seat (41) is integrally welded with an upper buckle (42), and the lower end of the lower die seat (41) is installed with a base (43).

4. The cage motor bracket positioning slot riveting equipment based on the limiting device according to claim 3, characterized in that: The upper end of the lower die seat (41) is connected with the upper riveting head module (1) through the upper buckle (42), and the outer wall of the upper buckle (42) is attached to the support positioning groove (5).

5. The cage motor bracket positioning slot riveting equipment based on the limiting device according to claim 3, characterized in that: The lower surface of the base (43) is fixedly attached with a rubber gasket.

6. The bracket positioning slot riveting equipment of the position-limiting device-based shield machine, according to claim 1, characterized in that: The upper fixing mechanism (6) comprises an upper riveting head (61), the outer wall of the upper riveting head (61) is attached with a fine adjustment gasket (62), the lower end of the outer wall of the upper riveting head (61) is fixedly installed with a plurality of riveting teeth (63), the outer wall of the upper riveting head (61) is sleeved with a limiting tube (64), the limiting tube (64) is provided with a connecting hole (65) above, and the limiting tube (64) is fixedly installed with a limiting block (66) below.

7. The cage motor bracket positioning slot riveting equipment based on the limiting device according to claim 6, characterized in that: The fine adjustment gasket (62) is made of silica gel material.

8. The bracket positioning slot riveting equipment of the field-oriented motor based on the limiting device, according to claim 6, characterized in that: The upper riveting head (61) is connected with the lower die seat (41) through the riveting teeth (63), the limiting tube (64) is buckled with the support positioning groove (5) through the limiting block (66), and the limiting tube (64) is connected with the upper riveting head (61) through the connecting hole (65).