Air tightness detection clamp tool

Abstract

The utility model discloses an air tightness detection clamp tool. The air tightness detection clamp tool comprises a base, a supporting frame arranged on the base, a pressing assembly and a plugging assembly, wherein the pressing assembly and the plugging assembly are located on the periphery of the supporting frame. A sealing structure is arranged in the supporting frame, a battery box is inversely arranged in the supporting frame and is supported by the sealing structure, and a sealing detection cavity is formed between the battery box and the supporting frame; the downward pressing assembly comprises a rotary driving piece, a downward pressing driving piece connected with the rotary driving piece and a downward pressing block connected with the downward pressing driving piece. The plugging assembly comprises a telescopic piece and a plugging block connected with the telescopic piece. According to the scheme, the downward pressing assembly, the plugging assembly and the sealing structure are arranged, it is guaranteed that the detection cavity is in a sealed state, then detection of the air tightness in the battery box is achieved, the downward pressing assembly and the plugging assembly can automatically achieve fixing of the battery box and hole plugging, manpower is saved, the auxiliary time can be shortened, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fixtures and tooling, and more specifically, to a fixture and tooling for airtightness testing. Background Technology

[0002] The air pressure method is a commonly used method for testing air tightness. It mainly determines whether a leak exists by monitoring changes in air pressure within a sealed container. Its principle and operation are relatively simple, and it is suitable for a variety of different application scenarios.

[0003] The airtightness test of the battery box is to ensure that it remains sealed during use, preventing the entry of external substances (such as moisture, dust, and gases) or internal gas leakage, thereby improving the safety, stability, and lifespan of the battery box. Airtightness testing is commonly used for quality control in battery box design and manufacturing, especially in applications requiring high standards of waterproofing, dustproofing, and explosion-proofing, such as electric vehicles, power tools, and energy storage systems.

[0004] Before testing, the battery box needs to be secured. Traditional manual clamps require employees to have good arm strength and endurance to perform the work, which is difficult for most male employees to maintain for extended periods. Furthermore, the securing accuracy is not always high. Additionally, the battery box has certain holes that need to be sealed during testing. However, the location of these holes varies between different battery box models, and improper sealing can lead to air leaks, thus affecting the accuracy of the test. Utility Model Content

[0005] The purpose of this utility model is to provide an airtightness testing fixture to solve the technical problems existing in the background art.

[0006] This utility model provides an airtightness testing fixture, including a base, a support frame disposed on the base, a pressing component and a sealing component located on the outer periphery of the support frame;

[0007] A sealing structure is provided inside the support frame. The battery box is inverted inside the support frame and supported by the sealing structure. A sealed detection cavity is formed between the battery box and the support frame.

[0008] The pressing assembly includes a rotary drive, a pressing drive connected to the rotary drive, and a pressing block connected to the pressing drive; the sealing assembly includes a telescopic member and a sealing block telescopically connected to the telescopic member.

[0009] In a preferred embodiment, the downward driving component includes a downward cylinder, the bottom of which is provided with a mounting plate, which is connected to the rotary driving component.

[0010] In a preferred embodiment, the pressure block is configured as a U-shape, and the pressure block is connected to the output end of the pressure cylinder.

[0011] In a preferred embodiment, the rotary drive includes a drive motor, a transmission wheel, a belt, and a tensioning wheel assembly, with a transmission wheel connected to the bottom of each mounting plate.

[0012] In a preferred embodiment, the telescopic component includes a telescopic cylinder, the output end of which is connected to a mounting base, and the sealing block is movably disposed on the mounting base.

[0013] In a preferred embodiment, the mounting base is provided with a guide groove, the sealing block is slidably connected to the mounting base, and a hand-tightening fastener is provided on the back of the mounting base, the hand-tightening fastener passing through the mounting base and pressing against the sealing block.

[0014] In a preferred embodiment, the sealing block includes a substrate and a rubber plate disposed on the substrate.

[0015] In a preferred embodiment, the bottom of the telescopic cylinder is provided with a mounting bracket, and the base is provided with a sliding groove, wherein the mounting bracket is slidably connected to the sliding groove.

[0016] In a preferred embodiment, the sealing structure includes a support plate arranged circumferentially inside the support frame and a rubber pad disposed on the support plate.

[0017] The beneficial effects of this utility model's technical solution are:

[0018] The design of the pressing component, sealing component, and sealing structure in this solution ensures that the detection chamber is in a sealed state, thereby enabling the detection of the airtightness inside the battery box. Furthermore, the pressing component and sealing component can automatically fix the battery box and seal the holes, saving manpower, shortening auxiliary time, and improving the efficiency of the detection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the battery box after it is fixed in place according to this utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 3 This utility model Figure 2 Enlarged view of part A in the middle.

[0022] Figure 4 This is a schematic diagram of the structure of this utility model from a downward viewing angle.

[0023] Explanation of reference numerals in the attached drawings: 1. Base, 2. Support frame, 3. Support plate, 4. Rubber pad, 5. Air tightness detection mechanism, 6. Battery box, 7. Pressing assembly, 8. Pressing cylinder, 9. Mounting plate, 10. Pressing block, 11. Drive motor, 12. Transmission wheel, 13. Belt, 14. Tensioning wheel assembly, 15. Sealing assembly, 16. Telescopic cylinder, 17. Mounting seat, 18. Base plate, 19. Rubber plate, 20. Hand-tightening fastener, 21. Mounting bracket, 22. Slide groove. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0025] like Figures 1-4 As shown, this utility model provides an airtightness testing fixture, including a base 1, a support frame 2 mounted on the base 1, a pressing component 7 and a sealing component 15 located on the outer periphery of the support frame 2. A sealing structure is provided inside the support frame 2, and the battery box 6 is inverted inside the support frame 2 and supported by the sealing structure.

[0026] The battery box 6 is inverted within the support frame 2 and supported by a sealing structure. This sealing structure includes a support plate 3 arranged circumferentially inside the support frame 2 and a rubber pad 4 mounted on the support plate 3. The rubber pad 4 seals the opening of the battery box 6. Then, a pressing component 7 brings the opening of the battery box 6 into tight contact with the rubber pad 4, and a sealing component 15 seals the holes on the side of the battery box 6, creating a sealed detection cavity between the battery box 6 and the support frame 2. The airtightness detection mechanism 5 employs a constant pressure testing method. During testing, when the air volume in the detection cavity reaches a specified pressure value, it maintains constant pressure for 2 minutes. A pressure sensor detects pressure changes to determine if the leakage is acceptable. The pressing component 7, the sealing component 15, and the sealing structure ensure that the detection cavity is sealed, thus enabling the detection of the internal airtightness of the battery box 6.

[0027] The pressing assembly 7 includes a rotary drive, a pressing drive connected to the rotary drive, and a pressing block 10 connected to the pressing drive; the pressing drive includes a pressing cylinder 8, and a mounting plate 9 is provided at the bottom of the pressing cylinder 8, the mounting plate 9 being connected to the rotary drive.

[0028] In this embodiment, two sets of pressing components 7 are provided, located on both sides of the support frame 2, which can achieve double-sided pressing of the battery box 6. When the battery box 6 is placed, in order to avoid obstructing the battery box, the mounting plate 9 is driven to rotate by a rotary drive, so that the pressing block 10 is located on one side of the support frame 2. After the battery is placed, the mounting plate 9 is driven to rotate again by the rotary drive, so that the pressing block 10 is located above the battery box 6. Then, the pressing cylinder 8 drives the pressing block 10 to move downward and press it against the top of the battery box 6.

[0029] The rotary drive components include a drive motor 11, a transmission wheel 12, a belt 13, and a tensioning wheel assembly 14. Each mounting disc 9 has a transmission wheel 12 connected to its bottom. The drive motor 11 drives the transmission wheel 12 to rotate. Through the transmission of the belt 13 and the tensioning of the tensioning wheel assembly 14, the transmission wheel 12 can rotate synchronously, thereby enabling the mounting discs 9 on the same side to rotate synchronously.

[0030] The pressure block 10 is U-shaped and is connected to the output end of the pressure cylinder 8. The U-shape can increase the contact area and ensure more stable pressure.

[0031] The sealing assembly 15 includes a telescopic component and a sealing block connected to the telescopic component. The telescopic component includes a telescopic cylinder 16, the output end of which is connected to a mounting base 17. The sealing block is movably mounted on the mounting base 17. The sealing block includes a base plate 18 and a rubber plate 19 disposed on the base plate 18. The telescopic cylinder 16 drives the sealing block on the mounting base 17 to move toward the hole in the battery box 6, thereby sealing the hole.

[0032] The mounting base 17 is provided with a guide groove, and the sealing block is slidably connected to the mounting base 17. A hand-tightening fixing member 20 is provided on the back of the mounting base 17, and the hand-tightening fixing member 20 passes through the mounting base 17 and abuts against the sealing block. The base plate 18 can slide within the guide groove to achieve height adjustment of the rubber plate 19, which can meet the sealing of holes of different heights. After adjustment, the base plate 18 can be fixed by the hand-tightening fixing member 20. The bottom of the telescopic cylinder 16 is provided with a mounting bracket 21, and the base 1 is provided with a sliding groove 22. The mounting bracket 21 is slidably connected to the sliding groove 22. The mounting bracket 21 can slide within the sliding groove 22, thereby moving the sealing component 15 to the hole position, which is flexible in use.

[0033] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A fixture for airtightness testing, characterized in that: It includes a base, a support frame disposed on the base, a pressing component and a sealing component located on the outer periphery of the support frame; A sealing structure is provided inside the support frame. The battery box is inverted inside the support frame and supported by the sealing structure. A sealed detection cavity is formed between the battery box and the support frame. The pressing assembly includes a rotary drive, a pressing drive connected to the rotary drive, and a pressing block connected to the pressing drive; the sealing assembly includes a telescopic member and a sealing block telescopically connected to the telescopic member.

2. The airtightness testing fixture according to claim 1, characterized in that: The downward driving component includes a downward cylinder, and a mounting plate is provided at the bottom of the downward cylinder. The mounting plate is connected to the rotary driving component.

3. The airtightness testing fixture according to claim 2, characterized in that: The pressure block is U-shaped and is connected to the output end of the pressure cylinder.

4. The airtightness testing fixture according to claim 2, characterized in that: The rotary drive component includes a drive motor, a transmission wheel, a belt, and a tensioning wheel assembly, with a transmission wheel connected to the bottom of each mounting plate.

5. The airtightness testing fixture according to claim 1, characterized in that: The telescopic component includes a telescopic cylinder, the output end of which is connected to a mounting base, and the sealing block is movably mounted on the mounting base.

6. The airtightness testing fixture according to claim 5, characterized in that: The mounting base is provided with a guide groove, the sealing block is slidably connected to the mounting base, and a hand-tightening fixing component is provided on the back of the mounting base. The hand-tightening fixing component passes through the mounting base and presses against the sealing block.

7. The airtightness testing fixture according to claim 1, characterized in that: The sealing block includes a base plate and a rubber plate disposed on the base plate.

8. The airtightness testing fixture according to claim 5, characterized in that: The telescopic cylinder is provided with a mounting bracket at its bottom, and the base is provided with a sliding groove, with the mounting bracket slidably connected to the sliding groove.

9. The airtightness testing fixture according to claim 1, characterized in that: The sealing structure includes a support plate arranged circumferentially inside the support frame and a rubber pad disposed on the support plate.

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