Auxiliary mechanism for assembling carbon brush inductor assembly

By combining gear transmission mechanism and worm gear transmission component, the problem of positioning fixture shaking during inductor assembly is solved, realizing stable centering and clamping of inductor components and improving assembly accuracy.

CN224254648UActive Publication Date: 2026-05-19CHUZHOU JINGJU IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHUZHOU JINGJU IND CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the existing inductor assembly process, the wobbling of the positioning fixture leads to assembly instability, affecting the fixing and clamping effect of the inductor assembly.

Method used

The movement of the slider is controlled by a gear transmission mechanism and a worm gear transmission component to ensure that the inductor assembly is centered and clamped. The start and stop of the gear transmission mechanism are controlled by the worm gear transmission component, which has self-locking properties to prevent shaking.

Benefits of technology

This improves the stability of inductor assembly, ensuring that the positioning block does not wobble during clamping, thus enhancing assembly stability and precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of inductance component assembling, and particularly discloses a carbon brush inductance component assembling auxiliary mechanism which comprises a supporting cylinder, a positioning disc is arranged at the upper end of the supporting cylinder, a cross-shaped sliding groove is formed in the upper end of the positioning disc, four sliding blocks are arranged in the cross-shaped sliding groove in a sliding mode, and the sliding blocks are fixedly connected with positioning blocks arranged at the upper end of the positioning disc. A mounting disc is arranged on the inner side of the supporting cylinder, a gear transmission mechanism for controlling the sliding blocks to get close to the axis of the positioning disc is arranged at the upper end of the mounting disc, and a worm and gear transmission piece for controlling starting and stopping of the gear transmission mechanism is arranged at the lower end of the mounting disc. The gear transmission mechanism controls all the sliding blocks to get close to the axis direction of the positioning disc, the inductance assembly placed at the upper end of the positioning disc is centered and clamped, starting and stopping of the gear transmission mechanism are controlled through the worm and gear transmission part, the worm and gear transmission part has the self-locking performance, it can be guaranteed that the positioning blocks cannot shake in the assembly clamping process, and the positioning efficiency is improved. And the assembling stability of the inductor assembly is improved.
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Description

Technical Field

[0001] This utility model relates to the field of inductor assembly technology, and in particular to an auxiliary mechanism for assembling carbon brush inductors. Background Technology

[0002] When assembling the motor cover, the inductor and carbon brush need to be assembled into the cover, and then the inductor and carbon brush in the cover are welded. During the assembly process, the operator will use positioning fixtures to position the cover and the inductor assembly.

[0003] Patent application CN202320456251.5 discloses a mounting base for an inductor. The base includes a base body with downward-facing convex grooves at the center of both sides of its top. Convex plates are longitudinally inserted into the interior of each groove, and mounting protrusions are longitudinally attached to the outer surfaces of each plate. A positioning plate is longitudinally mounted at the center of the top side of each mounting protrusion. This mounting base for the inductor uses a threaded rod to rotate through the holes in the threaded sleeve and positioning plate, causing the corresponding fixing plates to move and thus securing the inductor. During assembly, the base may wobble, causing the screw to rotate and affecting the clamping of the fixing plates on the inductor assembly, thus impacting assembly stability. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes an auxiliary mechanism for assembling carbon brush inductor components, thereby overcoming the shortcomings of existing methods.

[0005] To achieve the purpose of this utility model, the utility model is achieved through the following technical solution: a carbon brush inductor assembly auxiliary mechanism, including a support cylinder, a positioning plate at the upper end of the support cylinder, and the positioning plate being fixedly connected to the support cylinder;

[0006] The upper end of the positioning disk is provided with a cross groove, and four sliders are slidably arranged in the cross groove. The sliders are fixedly connected to the positioning blocks located on the upper end of the positioning disk, and the positioning blocks are evenly arranged in the circumferential direction of the positioning disk axis.

[0007] The support cylinder has a mounting plate inside, which is fixedly connected to the support cylinder. The upper end of the mounting plate has a gear transmission mechanism that controls each slider to move closer to the axis of the positioning plate, and the lower end of the mounting plate has a worm gear transmission component for controlling the start and stop of the gear transmission mechanism.

[0008] A further improvement is that the gear transmission mechanism includes a rotating shaft, which is rotatably mounted at the lower end of the positioning plate. Two gears are sleeved on the outer side of the rotating shaft. Each gear has a toothed plate on its left and right sides. The four toothed plates are fixedly connected to the four gears respectively. Each toothed plate is tangent to the gear and meshes with the gear.

[0009] A further improvement is that a rubber plug is provided on the side of the positioning block near the axis of the positioning disk, the rubber plug engages with a groove opened on the side of the positioning block, and a positioning device is provided at the engagement point between the rubber plug and the groove.

[0010] A further improvement is that the positioning device includes a fixing bolt mounted on the upper end of the positioning block, the fixing bolt being screwed into the groove and threadedly connected to the bolt hole opened on the upper end of the rubber plug.

[0011] A further improvement is that the upper and lower ends of the rubber stopper are provided with guide ridges A, and the guide ridges A are slidably connected with the guide grooves A opened inside the groove.

[0012] A further improvement is that: guide ribs B are provided on the left and right sides of the slider, and the guide ribs B are slidably connected to the guide groove B opened inside the cross groove.

[0013] A further improvement is that the worm gear transmission component includes a worm, a worm wheel, and a motor. The motor is fixedly mounted on the outside of the support cylinder, the worm wheel is rotatably mounted on the lower end of the mounting plate, and the worm wheel is fixedly connected to the rotating shaft. The worm is rotatably mounted on the inside of the support cylinder, and the worm meshes with the worm wheel. The output end of the motor is fixedly connected to the worm.

[0014] A further improvement is that a limiting groove is provided at the upper end of the mounting plate, and the lower end of the slider is inserted into the limiting groove, with the slider and the limiting groove being slidably connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The gear transmission mechanism controls each slider to move closer to the axis of the positioning disk, aligning and clamping the inductor assembly placed on the upper end of the positioning disk. The start and stop of the gear transmission mechanism are controlled by the worm gear transmission component, which has self-locking properties to ensure that the positioning block does not wobble during the clamping process, thus improving the assembly stability of the inductor assembly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the positioning disk in this utility model.

[0019] Figure 2 This is a structural diagram of the support cylinder in this utility model.

[0020] Figure 3 This is a structural diagram of the toothed plate in this utility model.

[0021] Figure 4 This is a structural diagram of the mounting disk in this utility model.

[0022] The components include: 1. Support cylinder; 2. Positioning plate; 3. Cross groove; 4. Positioning block; 5. Slider; 6. Groove; 7. Fixing bolt; 8. Rubber plug; 9. Mounting plate; 10. Worm gear transmission component; 11. Gear transmission mechanism; 12. Limiting groove; 13. Rotating shaft; 14. Gear plate; 15. Gear; 16. Worm; 17. Worm gear; 18. Motor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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, 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.

[0024] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes an auxiliary mechanism for assembling a carbon brush inductor assembly, including a support cylinder 1, a positioning disk 2 at the upper end of the support cylinder 1, and the positioning disk 2 being fixedly connected to the support cylinder 1.

[0025] The upper end of the positioning disk 2 is provided with a cross groove 3, and four sliders 5 are slidably arranged in the cross groove 3. The sliders 5 are fixedly connected to the positioning blocks 4 located on the upper end of the positioning disk 2. Each positioning block 4 is evenly arranged in the circumferential direction of the axis of the positioning disk 2.

[0026] The support cylinder 1 has an inner side with a mounting plate 9, which is fixedly connected to the support cylinder 1. The upper end of the mounting plate 9 is equipped with a gear transmission mechanism 11 that controls each slider 5 to move closer to the axis of the positioning plate 2. The lower end of the mounting plate 9 is equipped with a worm gear transmission component 10 for controlling the start and stop of the gear transmission mechanism 11.

[0027] Before assembly, the inductor assembly to be assembled is placed on the upper end of the positioning plate 2. The gear transmission mechanism 11 on the upper end of the mounting plate 9 will be activated, controlling each slider 5 to move closer to the axis of the positioning plate 2. The positioning block 4 fixed on the upper end of the slider 5 will also move synchronously, centering and clamping the inductor assembly placed on the upper end of the positioning plate 2. The start and stop of the gear transmission mechanism 11 is controlled by the worm gear transmission component 10. The worm gear transmission component 10 has self-locking properties, which can ensure that the positioning block 4 will not wobble during the clamping process, thus improving the assembly stability of the inductor assembly.

[0028] Regarding gear transmission mechanism 11:

[0029] The gear transmission mechanism 11 includes a rotating shaft 13, which is rotatably mounted on the lower end of the positioning disk 2. Two gears 15 are sleeved on the outer side of the rotating shaft 13. Each gear 15 has a toothed plate 14 on its left and right sides. The four toothed plates 14 are fixedly connected to the four gears 15 respectively. Each toothed plate 14 is tangent to the gear 15 and meshes with the gear 15.

[0030] When the shaft 13 rotates, the gear 15 fixed to the shaft 13 also rotates. During rotation, the gear 15 engages with the toothed plates 14 on both sides, causing the two toothed plates 14 to move in opposite directions along their tangents. The two gears 15 are arranged vertically, and the two sets of toothed plates 14 are staggered to ensure that there is no interference when the toothed plates 14 move. Since the toothed plates 14 are fixed to the slider 5, and the positioning blocks 4 are fixed to the slider 5, when the toothed plates 14 move synchronously, the positioning blocks 4 also move synchronously along the cross groove 3, completing the center positioning of the carbon brush inductor assembly.

[0031] To prevent the carbon brush inductor assembly, which is fixed between the four positioning blocks 4, from falling off, a rubber plug 8 is provided on the side of the positioning block 4 near the axis of the positioning disk 2. The rubber plug 8 engages with a groove 6 formed on the side of the positioning block 4, and a positioning device is provided at the engagement point between the rubber plug 8 and the groove 6. When the positioning block 4 approaches the inductor assembly, the rubber plug 8 will contact the inductor assembly first. In addition to increasing friction, the rubber plug 8 also plays a protective role for the inductor assembly.

[0032] Specifically, the positioning device includes a fixing bolt 7 mounted on the upper end of the positioning block 4. The fixing bolt 7 is screwed into the groove 6 and threadedly connected to the bolt hole opened on the upper end of the rubber stopper 8. When removing the rubber stopper 8 from the groove 6, the fixing bolt 7 can be screwed out from the bolt hole at the top of the rubber stopper 8.

[0033] It is worth explaining in detail that the upper and lower ends of the rubber stopper 8 are provided with guide ridges A, which are slidably connected to the guide groove A opened inside the groove 6. When the rubber stopper 8 is inserted into the groove 6, the guide ridges A at the upper and lower ends of the rubber stopper 8 will also be inserted into the guide groove A opened inside the groove 6. The guide groove A, by cooperating with the guide ridge A, limits the rubber stopper 8 and ensures that the rubber stopper 8 will not shift during installation.

[0034] Guide ribs B are provided on the left and right sides of the slider 5. The guide ribs B are slidably connected to the guide grooves B opened inside the cross slide groove 3. Similarly, the mating part between the cross slide groove 3 and the slider 5 is also provided with corresponding guide ribs B and guide grooves B, so as to limit the slider 5. The guide ribs B and guide grooves B are obscured in the attached drawings and will not be explained in detail here.

[0035] Regarding worm gear transmission components 10:

[0036] The worm gear transmission component 10 includes a worm 16, a worm wheel 17, and a motor 18. The motor 18 is fixedly mounted on the outside of the support cylinder 1. The worm wheel 17 is rotatably mounted on the lower end of the mounting plate 9 and is fixedly connected to the rotating shaft 13. The worm 16 is rotatably mounted on the inside of the support cylinder 1 and meshes with the worm wheel 17. The output end of the motor 18 is fixedly connected to the worm 16.

[0037] Motor 18 drives worm 16 to rotate. During rotation, worm 16 meshes with worm wheel 17, causing worm wheel 17 to rotate. Since worm wheel 17 is fixed to shaft 13, shaft 13 will also rotate when worm wheel 17 rotates. Worm gear transmission has self-locking property. When worm 16 stops rotating, shaft 13 will not rotate due to the engagement of the threads between worm 16 and worm wheel 17, thus improving the clamping stability of positioning block 4.

[0038] To further improve the stability of the horizontal movement of the slider 5, in a preferred embodiment, a limiting groove 12 is formed at the upper end of the mounting plate 9, and the lower end of the slider 5 is inserted into the limiting groove 12, with the slider 5 slidably connected to the limiting groove 12. The limiting groove 12, by cooperating with the slider 5, limits its movement from the bottom of the slider 5.

[0039] How this application works:

[0040] Before assembly, the inductor assembly to be assembled is placed on the upper end of the positioning plate 2. The gear transmission mechanism 11 on the upper end of the mounting plate 9 will be activated, controlling each slider 5 to move closer to the axis of the positioning plate 2. The positioning block 4 fixed on the upper end of the slider 5 will also move synchronously, centering and clamping the inductor assembly placed on the upper end of the positioning plate 2. When the rotating shaft 13 rotates, the gear 15 fixed to the rotating shaft 13 will also rotate. During the rotation of the gear 15, it will cooperate with the toothed plates 14 on both sides, causing the two toothed plates 14 to move in opposite directions along their tangents. The two gears 15 are set up vertically, and the upper and lower sets of toothed plates 14 are staggered to ensure that there is no interference when the toothed plates 14 move. Since the toothed plates 14 are fixed to the slider 5 and the positioning block 4 is fixed to the slider 5, when each toothed plate 14 moves synchronously, each positioning block 4 will also move synchronously along the cross groove 3, completing the center positioning of the carbon brush inductor assembly.

[0041] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0042] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An auxiliary assembly mechanism for carbon brush inductors, comprising a support cylinder (1), wherein a positioning disk (2) is provided at the upper end of the support cylinder (1), and the positioning disk (2) is fixedly connected to the support cylinder (1), characterized in that: The upper end of the positioning disk (2) is provided with a cross slide groove (3), and four sliders (5) are slidably arranged in the cross slide groove (3). The sliders (5) are fixedly connected to the positioning blocks (4) provided on the upper end of the positioning disk (2). Each of the positioning blocks (4) is evenly arranged in the circumferential direction of the axis of the positioning disk (2). The support cylinder (1) is provided with an installation plate (9) on its inner side. The installation plate (9) is fixedly connected to the support cylinder (1). The upper end of the installation plate (9) is provided with a gear transmission mechanism (11) for controlling each slider (5) to move closer to the axis of the positioning plate (2). The lower end of the installation plate (9) is provided with a worm gear transmission component (10) for controlling the start and stop of the gear transmission mechanism (11).

2. A carbon brush inductor assembly assembly aid as claimed in claim 1, wherein: The gear transmission mechanism (11) includes a rotating shaft (13), which is rotatably disposed at the lower end of the positioning disk (2). Two gears (15) are sleeved on the outer side of the rotating shaft (13). Each gear (15) has a toothed plate (14) on its left and right sides. The four toothed plates (14) are fixedly connected to the four gears (15) respectively. Each toothed plate (14) is tangent to the gear (15) and meshes with the gear (15).

3. A carbon brush inductor assembly assembly aid as defined in claim 1 wherein: The positioning block (4) has a rubber plug (8) on one side near the axis of the positioning disk (2). The rubber plug (8) engages with a groove (6) on the side of the positioning block (4). A positioning device is provided at the engagement point between the rubber plug (8) and the groove (6).

4. A carbon brush inductor assembly assembly aid as claimed in claim 3, wherein: The positioning device includes a fixing bolt (7) mounted on the upper end of the positioning block (4), the fixing bolt (7) being screwed into the groove (6) and threadedly connected to the bolt hole opened on the upper end of the rubber plug (8).

5. A carbon brush inductor assembly assembly aid as defined in claim 3 wherein: The upper and lower ends of the rubber stopper (8) are provided with guide ridges A, and the guide ridges A are slidably connected to the guide groove A opened inside the groove (6).

6. A carbon brush inductor assembly assembly aid as defined in claim 1 wherein: The slider (5) is provided with guide ribs B on the left and right sides, and the guide ribs B are slidably connected to the guide groove B opened inside the cross groove (3).

7. A carbon brush inductor assembly assembly aid as defined in claim 2 wherein: The worm gear transmission component (10) includes a worm (16), a worm wheel (17), and a motor (18). The motor (18) is fixedly disposed on the outside of the support cylinder (1). The worm wheel (17) is rotatably disposed on the lower end of the mounting plate (9). The worm wheel (17) is fixedly connected to the rotating shaft (13). The worm (16) is rotatably disposed on the inside of the support cylinder (1). The worm (16) meshes with the worm wheel (17). The output end of the motor (18) is fixedly connected to the worm (16).

8. A carbon brush inductor assembly assembly aid as defined in claim 1 wherein: The upper end of the mounting plate (9) is provided with a limiting groove (12), and the lower end of the slider (5) is inserted into the limiting groove (12). The slider (5) is slidably connected to the limiting groove (12).