Disassembling and positioning clamp for maintenance of battery pack of electric vehicle

By designing a disassembly and positioning fixture for electric vehicle battery pack repair, and utilizing a stepper motor-driven sprocket transmission and an electric torque wrench, the problem of inconvenient battery pack disassembly was solved, the efficiency of battery pack disassembly and assembly/disassembly was improved, and the stability of the battery pack was ensured.

CN224115560UActive Publication Date: 2026-04-14CHANGZHOU BIHU NEW ENERGY VEHICLE SERVICE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the existing battery pack disassembly process, the bolt positions between the upper and lower shells of the battery pack are inconsistent, resulting in inconvenient disassembly and low disassembly efficiency.

Method used

A disassembly and positioning fixture for electric vehicle battery pack maintenance has been designed, including a support platform, a clamping assembly, an ejection assembly, and a disassembly and adjustment mechanism. A stepper motor drives a sprocket to move the disassembly assembly. Combined with an electric torque wrench and a clamping plate, it enables convenient bolt removal. The sliding assembly reduces friction and improves the loading and unloading efficiency of the battery pack.

Benefits of technology

It enables convenient disassembly of the upper and lower shell bolts of the battery pack, improving the initial disassembly and loading/unloading efficiency of the battery pack, and ensuring the stability and convenience of the battery pack during the disassembly process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224115560U_ABST
    Figure CN224115560U_ABST
Patent Text Reader

Abstract

The utility model discloses a disassembly positioning fixture for electric vehicle battery pack maintenance, which relates to the technical field of electric vehicle battery pack maintenance and comprises a bearing table, two groups of symmetrically arranged clamping components are arranged at the upper end of the bearing table, a push-out component is arranged on the rear side of the middle of the upper end of the bearing table, and a slide-out component is arranged at the front end of the bearing table. A dismounting adjusting mechanism is arranged at the upper end of the bearing table and arranged on the upper portions of the pushing-out assembly and the clamping assembly, the dismounting adjusting mechanism comprises a movable dismounting assembly, the movable dismounting assembly comprises a fixing plate, a strip hole is formed in the upper end of the fixing plate, and the upper end face of the fixing plate is slidably connected with a limiting plate. A lifting column is slidably connected to the surface of the limiting plate and penetrates through the limiting plate, an electric torque wrench is arranged at the lower end of the lifting column, and a movable sleeve is fixedly connected to the right side of the outer end of the lifting column. According to the utility model, the bolts for fixing the battery pack upper shell and the battery pack lower shell can be conveniently disassembled, and the preliminary disassembly efficiency of the battery pack is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle battery pack repair technology, specifically a disassembly and positioning fixture for electric vehicle battery pack repair. Background Technology

[0002] A battery pack is a modular energy device that can supply power independently, formed by combining multiple individual batteries in series and parallel and integrating auxiliary components such as a battery management system, thermal management system, and structural shell.

[0003] Existing technologies have the problem that when disassembling the battery pack, there are bolts in different positions between the upper and lower shells of the battery pack, which makes it inconvenient to remove the bolts and ultimately results in low disassembly efficiency. To address this, we propose a disassembly and positioning fixture for electric vehicle battery pack repair. Utility Model Content

[0004] The purpose of this utility model is to provide a disassembly and positioning fixture for electric vehicle battery pack repair, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a disassembly and positioning fixture for electric vehicle battery pack repair, comprising a support platform, two sets of symmetrically arranged clamping components on the upper end of the support platform, a push-out component on the rear side of the middle part of the upper end of the support platform, a sliding component on the front end of the support platform, and a disassembly adjustment mechanism on the upper end of the support platform. The disassembly adjustment mechanism is located above the push-out component and the clamping component, and includes a movable disassembly component. The movable disassembly component includes a fixed plate, a slotted hole on the upper end of the fixed plate, a limit plate slidably connected to the upper end surface of the fixed plate, a lifting column slidably connected to the surface of the limit plate and penetrating the limit plate, an electric torque wrench at the lower end of the lifting column, a movable sleeve fixedly connected to the right side of the outer end of the lifting column, a movable column slidably connected to the surface of the movable sleeve and penetrating the movable sleeve, a base plate fixedly connected to the lower end of the movable column, a spring fixedly connected to the upper end of the base plate, a top plate fixedly connected to the upper end of the movable column, and a fixed plate fixedly connected to the end of the top plate near the fixed plate.

[0006] Preferably, the upper end of the support platform is fixedly connected to a plurality of evenly distributed support columns, the upper end of the support columns is fixedly connected to a fixed ring plate, the lower left rear side of the fixed ring plate is fixedly connected to a stepper motor, the output end of the stepper motor is fixedly connected to a first rotating shaft, the outer end of the first rotating shaft is fixedly connected to a first sprocket, the inner side of the first sprocket is driven by a chain, each corner of the inner side of the chain is driven by a second sprocket, each surface of the second sprocket is fixedly connected to a second rotating shaft and the second rotating shaft passes through the second sprocket, and the lower end of the fixed plate is fixedly connected to the upper end of the chain.

[0007] Preferably, the clamping assembly includes a second side plate fixedly connected to the support platform, and two second side plates are fixedly connected to a second electric push rod at one end close to each other, and a clamping plate is fixedly connected to the output end of each second electric push rod.

[0008] Preferably, the ejection assembly includes a first side plate fixedly connected to the rear side of the upper end of the support platform, a first electric push rod fixedly connected to the center of the front end of the first side plate, and a push plate fixedly connected to the output end of the first electric push rod.

[0009] Preferably, the sliding assembly includes a triangular pyramidal plate fixedly connected to the front end of the support platform, and the surface of the triangular pyramidal plate is provided with a plurality of evenly distributed sliding rollers.

[0010] Preferably, the spring is fitted with a movable column, and the upper end of the spring is fixedly connected to the movable sleeve.

[0011] Preferably, the output end of the first rotating shaft passes through the fixed ring plate, the lower end of the first rotating shaft is rotatably connected to the fixed ring plate through a bearing, and the lower end of the second rotating shaft is rotatably connected to the fixed ring plate through a bearing.

[0012] Preferably, the clamping plate is disposed on the upper part of the support platform, and the push plate is disposed on the upper part of the support platform.

[0013] Preferably, an L-shaped operating handle is fixedly connected to the upper end of the lifting column, and a control button is provided at the upper end of the L-shaped operating handle. The control button is electrically connected to an electric torque wrench.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Equipped with a support platform and a disassembly and adjustment mechanism, the stepper motor is powered by an external power source. The stepper motor output drives the first shaft to rotate, which in turn drives the first sprocket. The first sprocket drives the chain, which in turn drives the second sprocket. The second sprocket then drives the second shaft to rotate, and the chain moves the disassembly assembly. When disassembling the bolts sequentially distributed on the battery pack, the operator can hold an L-shaped handle. Moving the L-shaped handle moves the lifting column within the slot, causing the lifting column to move the limiting plate to a fixed position. The upper part of the plate slides. When the electric torque wrench is aligned with the bolt, the control button can be pressed to control the electric torque wrench. Next, the L-shaped operating handle can be pressed down. The L-shaped operating handle moves the lifting column downward, causing the moving sleeve to slide relative to the moving column. The moving sleeve compresses the spring, and the lifting column moves the electric torque wrench downward to disassemble the corresponding bolt. The stepper motor stops running each time a bolt is disassembled. This utility model enables convenient disassembly of the bolts fixing the upper and lower shells of the battery pack, improving the initial disassembly efficiency of the battery pack.

[0016] 2. Equipped with a support platform, a sliding assembly, and an ejection assembly, the battery pack disassembly is completed. At this time, the first electric push rod can be powered by an external power source. The output end of the first electric push rod drives the push plate to move forward. The push plate then moves the battery pack forward. When the battery pack moves to the sliding assembly, the sliding roller contacts the lower end of the battery pack, thereby reducing the friction between the battery pack and the sliding roller and improving the efficiency of battery pack unloading.

[0017] 3. Equipped with a support platform and clamping components, when the battery pack is placed on the support platform, the second electric push rod can be powered by an external power source. At this time, the output end of the second electric push rod drives the clamping plates to move closer to each other. Once the two symmetrically arranged clamping plates clamp the battery pack, the power supply to the second electric push rod can be stopped, which improves the stability of the battery pack on the support platform. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembly and adjustment mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the movable disassembly component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the sliding component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the clamping assembly structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the component structure of this utility model.

[0024] In the diagram: 1. Support platform; 2. Sliding assembly; 21. Triangular cone plate; 22. Sliding roller; 3. Push-out assembly; 31. First side plate; 32. First electric push rod; 33. Push plate; 4. Clamping assembly; 41. Second side plate; 42. Second electric push rod; 43. Clamping plate; 5. Disassembly and adjustment mechanism; 51. Support column; 52. Fixing ring plate; 53. Stepper motor; 54. First rotating shaft; 55. First sprocket; 56. Chain; 57. Second sprocket; 58. Second rotating shaft; 59. Moving disassembly assembly; 591. Fixing plate; 592. Slot hole; 593. Lifting column; 594. Limiting plate; 595. Electric torque wrench; 596. L-shaped operating handle; 597. Control button; 598. Moving sleeve; 599. Moving column; 5910. Base plate; 5911. Spring; 5912. Top plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 6This utility model provides a technical solution: a disassembly and positioning fixture for electric vehicle battery pack repair, including a support platform 1. Two sets of symmetrically arranged clamping components 4 are provided on the upper end of the support platform 1. A push-out component 3 is provided on the rear side of the middle of the upper end of the support platform 1. A sliding component 2 is provided at the front end of the support platform 1. A disassembly adjustment mechanism 5 is provided on the upper end of the support platform 1, located above the push-out component 3 and the clamping components 4. The disassembly adjustment mechanism 5 includes a movable disassembly component 59, which includes a fixed plate 591. A slot 592 is provided on the upper end of the fixed plate 591, and a limiter is slidably connected to the upper surface of the fixed plate 591. Plate 594, a lifting column 593 is slidably connected to the surface of the limiting plate 594 and the lifting column 593 passes through the limiting plate 594, an electric torque wrench 595 is provided at the lower end of the lifting column 593, a movable sleeve 598 is fixedly connected to the right side of the outer end of the lifting column 593, a movable column 599 is slidably connected to the surface of the movable sleeve 598 and the movable column 599 passes through the movable sleeve 598, a base plate 5910 is fixedly connected to the lower end of the movable column 599, a spring 5911 is fixedly connected to the upper end of the base plate 5910, a top plate 5912 is fixedly connected to the upper end of the movable column 599, and the end of the top plate 5912 near the fixed plate 591 is fixedly connected to the fixed plate 591.

[0027] In this embodiment, a plurality of evenly distributed support columns 51 are fixedly connected to the upper end of the support platform 1. A fixed ring plate 52 is fixedly connected to the upper end of the support column 51. A stepper motor 53 is fixedly connected to the lower left rear side of the fixed ring plate 52. A first rotating shaft 54 ​​is fixedly connected to the output end of the stepper motor 53. A first sprocket 55 is fixedly connected to the outer end of the first rotating shaft 54. A chain 56 is driven to the inner side of the first sprocket 55. A second sprocket 57 is driven to each corner of the inner side of the chain 56. A second rotating shaft 58 is fixedly connected to the surface of each second sprocket 57 and the second rotating shaft 58 passes through the second sprocket 57. The lower end of the fixed plate 591 is fixedly connected to the upper end of the chain 56.

[0028] Specifically, the stepper motor 53 is powered by an external power source. The output of the stepper motor 53 drives the first shaft 54 ​​to rotate, which in turn drives the first sprocket 55 to rotate. The first sprocket 55 drives the chain 56 to drive the chain, which in turn drives the second sprocket 57 to rotate, which in turn drives the second shaft 58 to rotate.

[0029] In this embodiment, the clamping assembly 4 includes a second side plate 41 fixedly connected to the support platform 1. Two second side plates 41 are fixedly connected to a second electric push rod 42 at one end close to each other. Each output end of the second electric push rod 42 is fixedly connected to a clamping plate 43.

[0030] Specifically, the clamping assembly 4 enables the second electric push rod 42 to be powered by an external power source when the battery pack is placed on the support platform 1. The output end of the second electric push rod 42 drives the clamping plates 43 to move closer to each other. Once the two symmetrically arranged clamping plates 43 clamp the battery pack, the power supply to the second electric push rod 42 can be stopped, thus improving the stability of the battery pack on the support platform 1.

[0031] In this embodiment, the ejection component 3 includes a first side plate 31 fixedly connected to the rear side of the upper end of the support platform 1, a first electric push rod 32 fixedly connected to the middle of the front end of the first side plate 31, and a push plate 33 fixedly connected to the output end of the first electric push rod 32.

[0032] Specifically, by pushing out component 3, after the battery pack disassembly is completed, the first electric push rod 32 can be powered by an external power source. At this time, the output end of the first electric push rod 32 drives the push plate 33 to move forward, and the push plate 33 drives the battery pack to move forward.

[0033] In this embodiment, the sliding component 2 includes a triangular pyramid plate 21 fixedly connected to the front end of the support platform 1, and a plurality of uniformly distributed sliding rollers 22 are provided on the surface of the triangular pyramid plate 21.

[0034] Specifically, by using the sliding component 2, when the battery pack moves to the sliding component 2, the sliding roller 22 contacts the lower end of the battery pack, thereby reducing the friction between the battery pack and the sliding roller 22 and improving the efficiency of battery pack unloading.

[0035] In this embodiment, the spring 5911 is fitted with the movable post 599, and the upper end of the spring 5911 is fixedly connected to the movable sleeve 598.

[0036] Specifically, ensure that spring 5911 does not interfere with moving post 599.

[0037] In this embodiment, the output end of the first rotating shaft 54 ​​passes through the fixed ring plate 52, the lower end of the first rotating shaft 54 ​​is rotatably connected to the fixed ring plate 52 through a bearing, and the lower end of the second rotating shaft 58 is rotatably connected to the fixed ring plate 52 through a bearing.

[0038] Specifically, it is ensured that the first rotating shaft 54 ​​and the second rotating shaft 58 do not interfere with the fixed ring plate 52 during rotation.

[0039] In this embodiment, the clamping plate 43 is disposed on the upper part of the support platform 1, and the push plate 33 is disposed on the upper part of the support platform 1.

[0040] Specifically, ensure that the clamping plate 43 and the push plate 33 do not scrape against the support platform 1 during the movement.

[0041] In this embodiment, an L-shaped operating handle 596 is fixedly connected to the upper end of the lifting column 593, and a control button 597 is provided on the upper end of the L-shaped operating handle 596. The control button 597 is electrically connected to an electric torque wrench 595.

[0042] Specifically, a control button 597 is provided to control the electric torque wrench 595.

[0043] Working principle: First, the battery pack is placed on the support platform 1. At this time, the second electric push rod 42 can be powered by an external power source. The output end of the second electric push rod 42 drives the clamping plates 43 to move closer together. Once the two symmetrically arranged clamping plates 43 clamp the battery pack, the power supply to the second electric push rod 42 can be stopped. Next, the stepper motor 53 is powered by an external power source. The output end of the stepper motor 53 drives the first rotating shaft 54 ​​to rotate, which in turn drives the first sprocket 55 to rotate. The first sprocket 55 then drives the chain 56 for transmission. The transmission of chain 6 can then drive the rotation of the second sprocket 57. The second sprocket 57 then drives the second shaft 58 to rotate. The chain 56 then drives the movable disassembly assembly 59 to move. When disassembling the bolts sequentially distributed on the battery pack, the operator can hold the L-shaped operating handle 596. Moving the L-shaped operating handle 596 moves the lifting column 593 within the slot 592. The lifting column 593 then causes the limiting plate 594 to slide on the upper end of the fixed plate 591. When the electric torque wrench 595... When the bolt is being removed, press control button 597. Control button 597 controls the electric torque wrench 595. Next, press down on the L-shaped operating handle 596. This causes the lifting column 593 to move downwards, leading to relative sliding between the moving sleeve 598 and the moving column 599. The moving sleeve 598 compresses the spring 5911, causing the lifting column 593 to move the electric torque wrench 595 downwards, thus removing the corresponding bolt. During each bolt removal, the stepper motor 5... 3. Stop operation. After the battery pack disassembly is completed, the first electric push rod 32 can be powered by an external power source. The output end of the first electric push rod 32 drives the push plate 33 to move forward. The push plate 33 drives the battery pack to move forward. When the battery pack moves to the sliding assembly 2, the sliding roller 22 contacts the lower end of the battery pack, thereby reducing the friction between the battery pack and the sliding roller 22 and improving the efficiency of battery pack disassembly and unloading. This utility model realizes the convenient disassembly of the bolts fixing the upper and lower shells of the battery pack, improving the initial disassembly efficiency of the battery pack.

[0044] 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 disassembly and positioning fixture for repairing electric vehicle battery packs, comprising a support platform (1), characterized in that: Two sets of symmetrically arranged clamping assemblies (4) are provided on the upper end of the support platform (1). A push-out assembly (3) is provided on the rear side of the middle part of the upper end of the support platform (1). A sliding assembly (2) is provided on the front end of the support platform (1). A disassembly and adjustment mechanism (5) is provided on the upper end of the support platform (1). The disassembly and adjustment mechanism (5) is located on the upper part of the push-out assembly (3) and the clamping assembly (4). The disassembly and adjustment mechanism (5) includes a movable disassembly assembly (59). The movable disassembly assembly (59) includes a fixed plate (591). A slot (592) is opened on the upper end of the fixed plate (591). A limit plate (594) is slidably connected to the upper end surface of the fixed plate (591). The surface of the limit plate (594) is slidably connected to... A lifting column (593) is provided and the lifting column (593) passes through the limiting plate (594). An electric torque wrench (595) is provided at the lower end of the lifting column (593). A movable sleeve (598) is fixedly connected to the right side of the outer end of the lifting column (593). A movable column (599) is slidably connected to the surface of the movable sleeve (598) and the movable column (599) passes through the movable sleeve (598). A base plate (5910) is fixedly connected to the lower end of the movable column (599). A spring (5911) is fixedly connected to the upper end of the base plate (5910). A top plate (5912) is fixedly connected to the upper end of the movable column (599). The top plate (5912) is fixedly connected to the fixed plate (591) at the end near the fixed plate (591).

2. The disassembly and positioning fixture for electric vehicle battery pack repair according to claim 1, characterized in that: The upper end of the support platform (1) is fixedly connected to a plurality of evenly distributed support columns (51). The upper end of the support column (51) is fixedly connected to a fixed ring plate (52). The lower left rear side of the fixed ring plate (52) is fixedly connected to a stepper motor (53). The output end of the stepper motor (53) is fixedly connected to a first rotating shaft (54). The outer end of the first rotating shaft (54) is fixedly connected to a first sprocket (55). The inner side of the first sprocket (55) is connected to a chain (56). Each corner of the inner side of the chain (56) is connected to a second sprocket (57). The surface of each second sprocket (57) is fixedly connected to a second rotating shaft (58) and the second rotating shaft (58) passes through the second sprocket (57). The lower end of the fixed plate (591) is fixedly connected to the upper end of the chain (56).

3. The disassembly and positioning fixture for electric vehicle battery pack repair according to claim 1, characterized in that: The clamping assembly (4) includes a second side plate (41) fixedly connected to the support platform (1). Two second side plates (41) are fixedly connected to a second electric push rod (42) at one end close to each other. Each output end of the second electric push rod (42) is fixedly connected to a clamping plate (43).

4. The disassembly and positioning fixture for electric vehicle battery pack repair according to claim 3, characterized in that: The ejection assembly (3) includes a first side plate (31) fixedly connected to the rear side of the upper end of the support platform (1), a first electric push rod (32) fixedly connected to the front center of the first side plate (31), and a push plate (33) fixedly connected to the output end of the first electric push rod (32).

5. A disassembly and positioning fixture for electric vehicle battery pack repair according to claim 2, characterized in that: The sliding assembly (2) includes a triangular pyramidal plate (21) fixedly connected to the front end of the support platform (1), and the surface of the triangular pyramidal plate (21) is provided with a plurality of uniformly distributed sliding rollers (22).

6. The disassembly and positioning fixture for electric vehicle battery pack repair according to claim 4, characterized in that: The spring (5911) is fitted with a movable post (599), and the upper end of the spring (5911) is fixedly connected to a movable sleeve (598).

7. A disassembly and positioning fixture for electric vehicle battery pack repair according to claim 2, characterized in that: The output end of the first rotating shaft (54) passes through the fixed ring plate (52), the lower end of the first rotating shaft (54) is rotatably connected to the fixed ring plate (52) through a bearing, and the lower end of the second rotating shaft (58) is rotatably connected to the fixed ring plate (52) through a bearing.

8. A disassembly and positioning fixture for electric vehicle battery pack repair according to claim 4, characterized in that: The clamping plate (43) is located on the upper part of the support platform (1), and the push plate (33) is located on the upper part of the support platform (1).

9. A disassembly and positioning fixture for electric vehicle battery pack repair according to claim 1, characterized in that: An L-shaped operating handle (596) is fixedly connected to the upper end of the lifting column (593). A control button (597) is provided on the upper end of the L-shaped operating handle (596). The control button (597) is electrically connected to an electric torque wrench (595).