Airtightness test equipment

Abstract

The utility model relates to an air tightness test device comprising a test platform which is provided with a positioning seat used for placing a product to be tested; the downward pressing mechanism is erected above the positioning seat and comprises a downward pressing driving part and a downward pressing assembly, and the downward pressing driving part is configured to drive the downward pressing assembly to vertically move so as to be close to or away from the positioning seat; and the at least one sealing assembly is arranged on the inner side and / or the outer side of the positioning seat, the sealing assembly comprises a driving unit and a plugging piece, and the driving unit is configured to drive the plugging piece to seal a through hole, communicating the inside and the outside, in the product. According to the utility model, the structure is simple and reasonable, the automatic positioning of the product and the automatic sealing of the through hole of the product can be realized, and the test efficiency and precision can be improved.

Description

Technical Field

[0001] This utility model relates to the field of batteries, and more specifically, to an airtightness testing device. Background Technology

[0002] In the manufacturing process of battery products, airtightness testing is a critical quality control step to ensure product safety and reliability. In existing technologies, product casings typically have multiple through-hole structures for electrical connections, and these through-holes need to be effectively sealed during testing. Currently, the industry commonly uses manual sealing, where operators manually install matching sealing components according to the size and shape of the through-holes. This traditional method suffers from low efficiency, making it difficult to meet the high-speed requirements of modern production lines. Furthermore, due to variations in operator skill levels, the installation position and clamping force of the sealing components are inconsistent, affecting the accuracy of the test results. Utility Model Content

[0003] The purpose of this utility model is to provide an airtightness testing device with a simple and reasonable structure, which can realize automatic positioning of products and automatic sealing of product through holes, thereby improving the efficiency and accuracy of testing.

[0004] An airtightness testing device includes: a testing platform with a positioning seat for placing a product to be tested; a pressing mechanism mounted above the positioning seat, including a pressing drive and a pressing assembly, the pressing drive being configured to drive the pressing assembly to move vertically to move closer to or away from the positioning seat; and at least one sealing assembly disposed inside and / or outside the positioning seat, the sealing assembly including a driving unit and a sealing member, the driving unit being configured to drive the sealing member to seal a through hole on the product that connects the inside and outside.

[0005] In the above technical solution, the positioning seat can position the product, and the pressing mechanism can press the product down from top to bottom, thereby ensuring the accuracy and stability of the product's position during testing. The drive unit controls the movement of the sealing component, ensuring accurate alignment between the sealing component and the through-hole, while also improving the automation level of the test, effectively avoiding the problems of low efficiency and poor consistency of manual operation, thus improving the efficiency and accuracy of the test.

[0006] Furthermore, the driving unit includes a first driving member, the output end of which is connected to the sealing member, and the first driving member is configured to drive the sealing member to move linearly.

[0007] In the above technical solution, the first driving component can realize the linear advance and retreat of the sealing component, eliminate the angular deviation that is easy to occur in manual operation, ensure the repeatability accuracy of the vertical pressing of the sealing component, and maintain the constant clamping force of the sealing component during the test.

[0008] Furthermore, the driving unit includes a first driving member and a second driving member, and there are two sealing members arranged opposite to each other. The first driving member is configured to drive the two sealing members to move linearly to approach or move away from the product, and the second driving member is configured to drive the two sealing members to approach or move away from each other.

[0009] In the above technical solution, the dual driving components work together to simultaneously seal two through holes facing opposite directions. Specifically, the first driving component controls the linear movement of the sealing components, so that the two sealing components are respectively aligned with the two through holes facing opposite directions. The second driving component controls the two sealing components to move towards each other, thereby achieving simultaneous sealing of the two through holes. The structure is reasonable, ensuring the repeatability and accuracy of the seal.

[0010] Furthermore, the sealing element is formed in the shape of a column or plate, and a sealing layer is provided on the surface of the sealing element.

[0011] In the above technical solution, the columnar or plate-shaped sealing element can match the corresponding through hole, ensuring the sealing performance while providing support for the sealing element. The sealing layer can fit with the plane of the through hole, further improving the sealing effect.

[0012] Furthermore, the pressing assembly includes a movable plate, and the surface of the movable plate facing the positioning seat is provided with a plurality of elastic pressing units.

[0013] In the above technical solution, the movable plate is equipped with multiple elastic clamping units, which can form multi-point clamping to ensure the stability of the product position. Each elastic clamping unit floats independently, which can automatically compensate for the height difference of the product assembly surface, ensure uniform pressure distribution, and avoid local overpressure deformation caused by traditional rigid pressure plates.

[0014] Furthermore, the elastic clamping unit includes a pressure block, a telescopic rod, and an elastic element. The two ends of the telescopic rod are respectively connected to the movable plate and the pressure block, and the elastic element is sleeved on the outer periphery of the telescopic rod.

[0015] In the above technical solution, the elastic element can generate a continuous pressure toward the product surface, ensuring the pressing effect on the product, while also having a buffering effect to prevent excessive pressure from damaging the product.

[0016] Furthermore, the test platform is equipped with a mounting plate, the downward driving component is located on the mounting plate, and a number of guide rods are provided between the movable plate and the mounting plate.

[0017] In the above technical solution, the guide rod can guide the movement of the movable plate, and in conjunction with the mounting plate, it can ensure the stable movement of the pressing mechanism and ensure precise alignment with the product during the pressing process.

[0018] Furthermore, the mounting plate is provided with a negative pressure device, and the bottom of the positioning seat is provided with a plurality of negative pressure holes, and the negative pressure device is connected to the negative pressure holes.

[0019] In the above technical solution, the negative pressure device can draw a vacuum into the product through the negative pressure hole, and the sensor can sense the vacuum state inside the product to determine the airtightness of the product.

[0020] Furthermore, the positioning seat includes a plurality of positioning blocks, which are arranged to form a space for placing the product.

[0021] In the above technical solution, the positioning blocks can form a space that matches the product's outline, thereby positioning the product. Each positioning block can be independently adjusted or replaced, thus quickly adapting to products of different sizes.

[0022] Furthermore, the positioning seat is provided with a flexible support pad that matches the contour of the product.

[0023] In the above technical solution, the flexible support pad can support the product, which can protect the product and prevent the product from rigidly contacting the positioning seat. On the other hand, it can improve the airtightness of the lower end of the product and ensure the test accuracy.

[0024] Compared with existing technologies, the advantages of this invention are: the positioning seat can position the product, and the pressing mechanism can press the product down from top to bottom, thereby ensuring the accuracy and stability of the product position during testing. The drive unit controls the movement of the sealing component, ensuring accurate matching between the sealing component and the through hole, while also improving the automation level of testing, effectively avoiding the problems of low efficiency and poor consistency of manual operation, thus improving the efficiency and accuracy of testing. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the airtightness testing device according to an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the sealing assembly according to the first embodiment of the present invention.

[0027] Figure 3 This is a schematic diagram of the sealing assembly according to the second embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the pressure component in an embodiment of the present invention.

[0029] Figure 5 This is a schematic diagram of the positioning seat according to an embodiment of the present utility model.

[0030] Explanation of icon numbers:

[0031] Test platform 1, positioning seat 11, negative pressure hole 111, positioning block 112, flexible support pad 113, mounting plate 12, guide rod 13, pressing mechanism 2, pressing drive component 21, pressing assembly 22, movable plate 221, elastic clamping unit 222, pressure block 2221, telescopic rod 2222, elastic component 2223, sealing assembly 3, driving unit 31, first driving component 311, second driving component 312, sealing component 32, sealing layer 321, negative pressure device 4. Detailed Implementation

[0032] 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, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] Please refer to Figure 1 In a preferred embodiment, the airtightness testing equipment of this utility model mainly includes a testing platform 1, a pressing mechanism 2, and at least one sealing component 3. The testing platform 1 is provided with a positioning seat 11 for placing the product to be tested. The pressing mechanism 2 is mounted above the positioning seat 11 and includes a pressing drive 21 and a pressing component 22. The pressing drive 21 is configured to drive the pressing component 22 to move vertically towards or away from the positioning seat 11. The sealing component 3 is located inside and / or outside the positioning seat 11. The sealing component 3 includes a driving unit 31 and a sealing element 32. The driving unit 31 is configured to drive the sealing element 32 to seal the through-holes connecting the inside and outside of the product.

[0035] For example, the test platform 1 is mounted on a frame and has a horizontal surface, on which the positioning seat 11 is located. A mounting plate 12 is mounted on the test platform 1, and a pressing drive 21 is fixedly mounted on the mounting plate 12. The pressing drive 21 can be an existing linear drive device, such as a linear cylinder. A pressing assembly 22 is movably located below the mounting plate 12 and connected to the output end of the pressing drive 21. The pressing drive 21 can drive the pressing assembly 22 to move vertically, thereby pressing the product placed on the positioning seat 11 or separating it from the upper end of the product. A sealing assembly 3 can be located inside and / or outside the positioning seat 11, and can be configured according to the position and number of through holes in the product.

[0036] As can be seen from the above technical solution, the positioning seat 11 can position the product, and the pressing mechanism 2 can press the product from top to bottom, thereby ensuring the accuracy and stability of the product position during testing. The drive unit 31 controls the movement of the sealing component 32, ensuring the accurate fit between the sealing component 32 and the through hole, while improving the automation level of testing, effectively avoiding the problems of low efficiency and poor consistency of manual operation, and thus improving the efficiency and accuracy of testing.

[0037] Please refer to Figure 2 In the first embodiment of this utility model, the driving unit 31 includes a first driving member 311. The output end of the first driving member 311 is connected to the sealing member 32. The first driving member 311 is configured to drive the sealing member 32 to move linearly. For example, the first driving member 311 can be an existing linear drive device, such as a cylinder, which is fixedly installed on the test platform 1 or the positioning seat 11. Its output end is connected to the sealing member 32. The first driving member 311 can realize the linear advance and retreat of the sealing member 32, so that the sealing member 32 extends linearly into the corresponding through hole, eliminating the angle deviation that is easy to occur in manual operation, ensuring the repeatability accuracy of the vertical pressing of the sealing member 32, and maintaining the constant clamping force of the sealing member 32 during the test.

[0038] Please refer to Figure 3 The second embodiment of this utility model differs from the first embodiment in that the driving unit 31 includes a first driving member 311 and a second driving member 312, and two sealing members 32 arranged opposite to each other. The first driving member 311 is configured to drive the two sealing members 32 to move linearly closer to or away from the product, and the second driving member 312 is configured to drive the two sealing members 32 to move closer to or away from each other. For example, the first driving member 311 can be an existing linear drive device, such as a cylinder, and the second driving member 312 can be a clamping cylinder. The output end of the first driving member 311 is connected to a movable seat, and the second driving member 312 is disposed on the movable seat with its output end connected to the two sealing members 32. During sealing, the first driving member 311 drives the second driving member 312 and the sealing members 32 closer to the product, so that the two sealing members 32 are respectively opposite to two through holes facing opposite directions. The second driving member 312 controls the two sealing members 32 to move towards each other, thereby simultaneously sealing the two through holes.

[0039] The sealing element 32 can be formed in the shape of a column or a plate, and a sealing layer 321 is provided on the surface of the sealing element 32. Specifically, the sealing layer 321 can be made of rubber or silicone. The columnar or plate-shaped sealing element 32 can match the corresponding through hole, ensuring the sealing performance while providing support for the sealing element 32. The sealing layer 321 can fit against the plane of the through hole, further improving the sealing effect.

[0040] Please refer to Figure 1 and Figure 4 The pressing assembly 22 includes a movable plate 221, and the surface of the movable plate 221 facing the positioning seat 11 is provided with a plurality of elastic pressing units 222. The movable plate 221, equipped with multiple elastic pressing units 222, can form multi-point pressing, ensuring the stability of the product position. Each elastic pressing unit 222 floats independently, automatically compensating for height differences in the product assembly surface, ensuring uniform pressure distribution, and avoiding localized overpressure deformation caused by traditional rigid pressure plates.

[0041] Specifically, the elastic clamping unit 222 includes a pressure block 2221, a telescopic rod 2222, and an elastic element 2223. The two ends of the telescopic rod 2222 are connected to the movable plate 221 and the pressure block 2221, respectively. The elastic element 2223 is sleeved on the outer periphery of the telescopic rod 2222. For example, the elastic element 2223 can be a spring, which can generate a continuous pressure towards the product surface, ensuring a clamping effect on the product while also having a buffering effect to prevent excessive pressure from damaging the product.

[0042] In this embodiment, a plurality of guide rods 13 are provided between the movable plate 221 and the mounting plate 12. The guide rods 13 can guide the movement of the movable plate 221, and cooperate with the mounting plate 12 to ensure the stable movement of the pressing mechanism 2 and ensure precise alignment with the product during the pressing process.

[0043] Please refer to Figure 1 and Figure 5 The mounting plate 12 is equipped with a negative pressure device 4, and the bottom of the positioning seat 11 is provided with several negative pressure holes 111. The negative pressure device 4 is connected to the negative pressure holes 111. It is understood that the negative pressure device 4 can be an existing one, and this application will not elaborate on it here. The negative pressure device 4 can draw a vacuum into the product through the negative pressure holes 111, and the sensor can sense the vacuum state inside the product to determine the airtightness of the product.

[0044] The positioning base 11 includes a plurality of positioning blocks 112, which are arranged to form a space for placing the product. The positioning blocks 112 can form a space that matches the contour of the product, thereby positioning the product. Each positioning block 112 can be independently adjusted in position or replaced, thereby quickly adapting to products of different sizes.

[0045] The positioning seat 11 is provided with a flexible support pad 113 that matches the contour of the product. For example, the flexible support pad 113 can be made of rubber or silicone. The flexible support pad 113 can support the product, which can protect the product and prevent the product from rigidly contacting the positioning seat 11. On the other hand, it can improve the airtightness of the lower end of the product and ensure the test accuracy.

[0046] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] 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. An airtightness testing device, characterized in that, include: The testing platform is equipped with a positioning seat for placing the product to be tested; A pressing mechanism, mounted above the positioning seat, includes a pressing drive and a pressing assembly. The pressing drive is configured to drive the pressing assembly to move vertically to move closer to or further away from the positioning seat. as well as At least one sealing assembly is disposed inside and / or outside the positioning seat, the sealing assembly including a drive unit and a sealing element, the drive unit being configured to drive the sealing element to seal a through hole in the product.

2. The airtightness testing equipment according to claim 1, characterized in that, The driving unit includes a first driving member, the output end of which is connected to the sealing member, and the first driving member is configured to drive the sealing member to move linearly.

3. The airtightness testing equipment according to claim 1, characterized in that, The driving unit includes a first driving member and a second driving member, and there are two sealing members arranged opposite to each other. The first driving member is configured to drive the two sealing members to move linearly to approach or move away from the product, and the second driving member is configured to drive the two sealing members to approach or move away from each other.

4. The airtightness testing equipment according to claim 2 or 3, characterized in that, The sealing element is formed in the shape of a column or plate, and the surface of the sealing element is provided with a sealing layer.

5. The airtightness testing equipment according to claim 1, characterized in that, The pressing assembly includes a movable plate, and the surface of the movable plate facing the positioning seat is provided with a plurality of elastic pressing units.

6. The airtightness testing equipment according to claim 5, characterized in that, The elastic clamping unit includes a pressure block, a telescopic rod, and an elastic element. The two ends of the telescopic rod are connected to the movable plate and the pressure block, respectively, and the elastic element is sleeved on the outer periphery of the telescopic rod.

7. The airtightness testing device according to claim 5, characterized in that, The test platform is equipped with a mounting plate, the downward driving component is located on the mounting plate, and a number of guide rods are provided between the movable plate and the mounting plate.

8. The airtightness testing device according to claim 7, characterized in that, The mounting plate is equipped with a negative pressure device, and the bottom of the positioning seat is provided with several negative pressure holes. The negative pressure device is connected to the negative pressure holes.

9. The airtightness testing device according to claim 1, characterized in that, The positioning base includes a plurality of positioning blocks, which are arranged to form a space for placing the product.

10. The airtightness testing device according to claim 1, characterized in that, The positioning seat is equipped with a flexible support pad that matches the product profile.

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