Modularized helium detection jig for battery cover plate

Abstract

The utility model discloses a modularized battery cover plate helium detection jig, comprising a lower main body structure which comprises a first sealing ring, a bottom plate and a plurality of lower inserts arranged in the bottom plate; a detection groove for placing a battery cover plate and an air guide hole for conducting the detection groove are formed in the lower insert; the first sealing ring is arranged on the air guide hole in a sleeving manner and is positioned between the detection groove and the battery cover plate; the upper main body structure is arranged above the lower main body structure and is used for pressing the battery cover plate in the detection groove, so that the battery cover plate acts on the first sealing ring to seal the air guide hole; the jacking mechanism is arranged in a concave hole in the bottom of the detection groove; the jacking mechanism comprises at least one material touching body and an elastic reset piece making contact with the material touching body. According to the technical scheme provided by the utility model, the problem that the battery cover plate cannot be taken smoothly due to the fact that the battery cover plate and the sealing ring are easy to adhere to each other when the conventional helium detection jig is actually matched for use can be solved.

Description

Technical Field

[0001] The utility model relates to the field of battery cover plate detection jig design, and in particular to a modular battery cover plate helium detection jig. Background Art

[0002] Poor airtightness of existing battery covers can directly impact the reliability of the entire battery and pose a potential safety risk. To ensure battery quality and safety during use, existing manufacturers typically perform airtightness tests on battery covers using helium testing equipment.

[0003] Although the jigs in traditional airtightness testing equipment can effectively cooperate to complete the test, the following problems exist in the actual production process: First, after the battery cover is pressed onto the sealing ring on the lower insert, there is usually adhesion between them, that is, when the battery cover is tested and the external robot takes it out, the battery cover and the sealing ring are adhered to each other, which makes it difficult for the robot to take it out smoothly, affecting production efficiency; second, some existing jigs have an air pipe corresponding to the bottom of the battery cover on the lower body, which is used to blow air to lift the battery cover upward and separate it from the sealing ring to prevent adhesion, but this method can usually only perform single blowing on a single battery cover, such as multiple The battery covers are blown synchronously, but it is difficult to achieve the effect of being blown up synchronously and the moving position cannot be guaranteed. It is difficult for the robot to grasp it accurately, and the effect is unstable. It is not suitable for helium testing of multiple battery covers at the same time. Moreover, since the battery covers are usually thin, the battery covers are easily deformed by blowing, affecting product quality. Thirdly, the lower inserts and the bottom plates of some fixtures are usually integrally formed or difficult to disassemble. During long-term use, some scraps are inevitably left on the lower inserts or the bottom plate, which is extremely inconvenient when maintenance and cleaning are required. Moreover, the lower inserts are difficult to quickly adapt to other types of battery covers. The entire set of fixtures can only be replaced, affecting production efficiency and increasing costs.

[0004] In summary, the existing battery cover helium inspection fixture still needs to be further improved to meet actual usage needs. Utility Model Content

[0005] The utility model provides a modular helium inspection fixture for battery cover, which can solve the problem that the battery cover and the sealing ring are easily adhered to each other when the existing helium inspection fixture is actually used together, making it difficult to remove the battery cover smoothly. The utility model mainly adopts the following technical solutions:

[0006] and a plurality of lower inserts arranged in the bottom plate; the lower insert is formed with a detection groove for placing the battery cover and an air guide hole connected to the detection groove; the first sealing ring is sleeved on the air guide hole and is located between the detection groove and the battery cover; an upper main structure is provided above the lower main structure to press the battery cover into the detection groove so that the battery cover acts on the first sealing ring to close the air guide hole; a lifting mechanism is provided in a concave hole at the bottom of the detection groove; the lifting mechanism includes at least one bumper and an elastic reset member in contact with the bumper; when the battery cover is subjected to pressure, the battery cover acts on the bumper, and the elastic reset member is compressed in conjunction with the bumper, so that the bumper moves toward the concave hole; when the battery cover loses pressure, the bumper resets and lifts the battery cover upward by a certain distance.

[0007] Preferably, the elastic return member is located below the bumper body; when the bumper body moves toward the concave hole, the bumper body is flush with the height of the first sealing ring.

[0008] Preferably, the bumping body is in the shape of a "sphere", and a reset spring is provided in the elastic reset member.

[0009] Preferably, the material-impacting body and the elastic reset member are provided in plurality, and they are respectively located in a plurality of recessed holes at the bottom of the detection groove and close to the inner peripheral groove wall of the detection groove.

[0010] Preferably, an air guide channel is formed inside the bottom plate. When the lower insert is arranged in the bottom plate, the air guide channel is communicated with the air guide hole. A second sealing ring is provided between the lower insert and the bottom plate.

[0011] Preferably, at least one limiting mechanism is further included, and the limiting mechanism is located on the side of the bottom plate to constrain the lower insert in the bottom plate and enable the lower insert to be abutted against the second sealing ring on the bottom plate.

[0012] Preferably, the limiting mechanism includes a hook provided on the lower insert and an elastic puller provided on the side of the base plate; the elastic puller is hung on the hook and applies a downward force to the hook to drive the lower insert to move toward the base plate, so that the second sealing ring is compressed and deformed.

[0013] Preferably, the elastic pull member includes a spring base and a pull rod mounted in cooperation with the spring base, and the pull rod moves downward by the elastic force applied by the spring base.

[0014] Preferably, the limiting mechanism includes a plurality of limiting pins and a plurality of limiting holes provided on the side wall of the bottom plate, and the limiting pins are correspondingly inserted through the limiting holes to constrain the lower insert in the bottom plate.

[0015] Preferably, the upper main structure includes a top plate and upper inserts provided on the top plate and corresponding to the lower inserts.

[0016] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention provides a modular helium inspection jig for battery covers, which can solve the problem that when the existing helium inspection jig is actually used together, the battery cover and the sealing ring are easily adhered to each other, resulting in the battery cover being unable to be picked up smoothly. The technical solution of the present invention, by providing a lifting mechanism to replace the existing blowing lifting method, can efficiently separate the battery cover from the sealing ring, making it convenient for subsequent external manipulators to smoothly pick up the battery cover without worrying about deformation of the battery cover, thereby ensuring product quality; even if multiple battery covers need to be operated at the same time, the subsequent lifting mechanism can also synchronously lift each battery cover upward, with stable functional effects and guaranteed production efficiency.

[0018] (2) In this technical solution, the lower insert and the base plate are installed separately; in this way, when the lower insert needs to be adapted to different battery covers or other products, the lower insert can be quickly disassembled and replaced to achieve the desired effect; and the overall design of the fixture is modular, so when residual scraps are left during the cleaning process, the lower insert can be quickly disassembled and installed for cleaning, or the entire module fixture can be directly replaced and quickly replaced with another fixture to cooperate with the operation, thereby ensuring a certain level of production efficiency and saving production costs.

[0019] (3) In this technical solution, the elastic reset member is located below the bumper body, and the bumper body can move toward the recessed hole until it is flush with the height of the first sealing ring, thereby effectively flattening and deforming the entire first sealing ring to ensure the sealing between the battery cover and the lower insert.

[0020] (4) In the present technical solution, there are multiple bumping bodies and elastic reset members. The arrangement of multiple bumping bodies can lift up the entire battery cover plate instead of just lifting up a part of it, so that the entire battery cover plate can be disconnected from the first sealing ring, thereby preventing local adhesion.

[0021] (5) In the present technical solution, the setting of the limiting mechanism ensures the sealing between the lower insert and the base plate, that is, the limiting mechanism can drive the lower insert to be pressed onto the base plate, so that the second sealing ring can be effectively deformed to achieve the sealing effect between the lower insert and the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 for Figure 1 A partial enlarged view of portion A shown;

[0025] Figure 3 This is a schematic diagram of the structure of the lower insert placed in front of the base plate according to an embodiment of the utility model;

[0026] Figure 4 for Figure 3 A partial enlarged view of portion B shown;

[0027] Figure 5 This is a structural diagram of the main structure and battery cover of an embodiment of the present utility model;

[0028] Figure 6 for Figure 5 A partial enlarged view of portion C is shown;

[0029] Figure 7 This is a schematic overall cross-sectional view of an embodiment of the present utility model;

[0030] Figure 8 for Figure 7 A partial enlarged view of portion D is shown.

[0031] The following are the descriptions of the reference numerals:

[0032] 1. Lower main structure; 11. First sealing ring; 12. Bottom plate; 121. Air guide channel; 13. Lower insert; 131. Inspection slot; 131a. Concave hole; 132. Air guide hole; 2. Upper main structure; 21. Top plate; 22. Upper insert; 3. Lifting mechanism; 31. Impact body; 32. Elastic reset member; 4. Second sealing ring; 51. Hook; 52. Elastic pull member; 521. Spring base; 522. Pull rod; Y, battery cover. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is to distinguish different objects rather than to describe a specific order.

[0035] In the claims, specification and the above-mentioned drawings of the present utility model, unless otherwise expressly defined, directional words, such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present utility model.

[0036] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, if the terms "fixed connection" or "fixed connection" are used, they should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0037] In the claims, description and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0038] See Figures 1 to 8 .

[0039] This embodiment provides a modular helium inspection fixture for battery cover Y, which can solve the problem that the battery cover Y and the sealing ring are easily adhered to each other when the existing helium inspection fixture is actually used, resulting in the battery cover Y being unable to be taken away smoothly; see Figure 1 The helium inspection fixture mainly includes a lower main structure 1, an upper main structure 2 and a lifting mechanism 3; wherein,

[0040] Lower main structure 1, see Figure 5 and Figure 6, which includes a first sealing ring 11, a bottom plate 12 and a plurality of lower inserts 13 arranged in the bottom plate 12; the lower insert 13 is formed with a detection groove 131 for placing the battery cover Y, and is formed with an air guide hole 132 connected to the detection groove 131; the first sealing ring 11 is sleeved on the air guide hole 132 and is located between the detection groove 131 and the battery cover Y; see Figure 5 In this embodiment, the bottom plate 12 has four lower inserts 13 and four detection slots 131, which can simultaneously detect four battery cover plates Y at one time; Figure 7 and Figure 8 , wherein each detection slot 131 has three air guide holes 132 at the bottom wall position, and the air guide holes 132 can be connected to the air guide channel 121 in the bottom plate 12;

[0041] Upper main structure 2, see Figure 1 , which is arranged above the lower main structure 1, and includes a top plate 21, and upper inserts 22 (not shown) arranged on the top plate 21 corresponding to each lower insert 13, so as to press the battery cover Y into the detection groove 131, so that the battery cover Y acts on the first sealing ring 11 to close the air guide hole 132; in this way, see Figure 8 After the battery cover Y is placed in the detection groove 131, the first sealing ring 11 will be compressed and deformed to prevent a gap from appearing between the battery cover Y and the bottom wall of the detection groove 131, which would cause air leakage;

[0042] Lifting mechanism 3, see Figure 5 and Figure 6 , which is arranged in the concave hole 131a at the bottom of the detection groove 131; the lifting mechanism 3 includes at least one bumper 31 and an elastic return member 32 in contact with the bumper 31; when the battery cover Y is under pressure, the battery cover Y acts on the bumper 31, and the elastic return member 32 is compressed, causing the bumper 31 to move toward the concave hole 131a; when the battery cover Y loses pressure, the bumper 31 is reset to lift the battery cover Y upward by a certain distance. In this embodiment, the bumper 31 is in the shape of a "sphere", that is, it is a round bead; a return spring (not shown) is provided in the elastic return member 32. When the bumper 31 is subjected to downward pressure from the battery cover Y, the bumper 31 will touch the return spring below, driving it to compress and deform until the bumper 31 is displaced and retracted into the concave hole 131a for concealment; and when the bumper 31 is displaced, it will be flush with the height of the first sealing ring 11, that is, the sealing ring is deformed and flattened, and the height of the bumper 31 is equal to its flattened height.

[0043] In this embodiment, multiple bumpers 31 and elastic return members 32 are provided, each located within a plurality of recessed holes 131a at the bottom of the detection slot 131 and adjacent to the inner circumferential wall of the detection slot 131. That is, in this embodiment, each detection slot 131 has a recessed hole 131a at its bottom, and each bumper 31 and elastic return member 32 is located within each recessed hole 131a. When the battery cover Y is positioned within the detection slot 131, the multiple bumpers 31, under the action of the elastic return members 32, can simultaneously apply a holding force to the entire bottom surface of the battery cover Y, rather than just a localized force. When the battery cover Y is subjected to downward pressure, the multiple bumpers 31 can simultaneously move downward. In other embodiments, there can be only one bumper 31, that is, the bumper 31 is configured as a bumper plate, and the bumper 31 is also located within the movable space below the detection slot 131. When a single bumper 31 moves upward, it can simultaneously apply an upward holding force to multiple battery covers Y within the detection slots 131.

[0044] In this embodiment, see Figure 5 and Figure 8 A second sealing ring 4 is provided between the lower insert 13 and the bottom plate 12, so that the sealing between the lower insert 13 and the bottom plate 12 is guaranteed, so that the air guide hole 132 and the air guide channel 121 are connected without gaps causing air leakage.

[0045] In this embodiment, see Figures 1 to 4 , further comprising at least one limiting mechanism; in this embodiment, multiple limiting mechanisms are provided, and the provision of multiple limiting mechanisms can ensure functional stability. Each limiting mechanism is located on the side of the bottom plate 12 to constrain the lower insert 13 within the bottom plate 12 and to make the lower insert 13 abut against the second sealing ring 4 on the bottom plate 12. That is, see Figure 3 and Figure 4 The limiting mechanism includes a hook 51 provided on the lower insert 13 and an elastic puller 52 provided on the side of the bottom plate 12; Figure 1 and Figure 2 The elastic pull member 52 includes a spring base 521 and a pull rod 522 mounted in conjunction with the spring base 521. The pull rod 522 moves downward due to the elastic force exerted by the spring base 521. When the pull rod 522 moves upward, the spring exerts a counter-acting downward pulling resistance. That is, in this embodiment, when the lower insert 13 is installed in the base plate 12, the pull rod 522 moves upward to be hung in the hook 51. The pulling resistance exerted on the pull rod 522 drives the lower insert 13 downward toward the base plate 12, causing the lower insert 13 to be pressed against the second sealing ring 4, causing the second sealing ring 4 to be compressed and deformed. The effective deformation of the second sealing ring 4 achieves a sealing effect between the lower insert 13 and the base plate 12.

[0046] In other embodiments, the limiting mechanism can also be configured to include a plurality of limiting pins and a plurality of limiting holes (not shown) on the side walls of the base plate 12. The limiting pins are inserted through the limiting holes to constrain the lower insert 13 in the base plate 12. This method mainly adopts rigid limiting. Compared with the flexible limiting method of the elastic puller 52 and the hook 51 adopted in this embodiment, its function is not stable enough. That is, in this embodiment, when there are other chips that are invisible to the naked eye between the lower insert 13 and the base plate 12, when the lower insert 13 is arranged in the base plate 12, the lower insert 13 is higher than the normal height, and the limiting pins can no longer accurately constrain the lower insert 13 in the base plate 12; in this embodiment, a flexible limiting method is adopted, and the variable pulling resistance of the spring base 521 can be quickly adapted and adjusted.

[0047] The working principle and use process of this utility model:

[0048] First, each lower insert 13 is placed in the bottom plate 12 accordingly; then, the control rod 522 is moved upward and hung in the hook 51, and the pulling resistance of the rod 522 drives the lower insert 13 to move downward toward the bottom plate 12, so that the lower insert 13 is pressed onto the second sealing ring 4, and the second sealing ring 4 is compressed and deformed, so that the air guide hole 132 is sealed and connected with the air guide channel 121; then, each battery cover Y is placed in each detection slot 131, so that the battery cover Y The bottom wall contacts the bumper 31 in the detection groove 131; then, the upper main structure 2 moves downward relative to the lower main structure 1, and the upper insert 22 (not shown) is pressed onto the battery cover Y, compressing and deforming the first sealing ring 11, so that the air guide hole 132 is sealed. At the same time, the battery cover Y is driven downward to act on the bumper 31, so that the spring in the elastic return member 32 below the bumper 31 is compressed, and the bumper 31 shrinks and moves into the concave hole 131a of the detection groove 131;

[0049] Finally, helium can be input through the air guide channel 121 for detection; after the detection is completed, the upper main structure 2 moves upward, the battery cover Y loses the downward pressure, and the spring in the elastic reset member 32 returns to normal, driving the bumping body 31 to apply an upward holding force to the battery cover Y, lifting the battery cover Y upward by a certain distance, so that the battery cover Y is separated and connected relative to the first sealing ring 11. Therefore, the utility model can solve the problem that when the existing helium detection fixture is actually used in conjunction, the battery cover Y and the sealing ring are easily adhered to each other, resulting in the battery cover Y being unable to be taken smoothly. The technical solution of the utility model, by providing a lifting mechanism 3 to replace and abandon the existing blowing and lifting method, can efficiently separate the battery cover Y from the sealing ring, facilitate the subsequent external manipulator to smoothly pick up, and there is no need to worry about the battery cover Y being deformed, thereby ensuring product quality; and even if multiple battery cover Y need to be operated at the same time, the subsequent lifting mechanism 3 can also synchronously lift each battery cover Y upward, with stable functional effects and guaranteed production efficiency.

[0050] The above description and embodiments are used to explain the scope of protection of the utility model, but do not constitute a limitation on the scope of protection of the utility model. Based on the enlightenment of the utility model or the above embodiments, modifications, equivalent replacements, or other improvements to the embodiments of the utility model or part of the technical features thereof that can be obtained by ordinary technicians in this field through logical analysis, reasoning, or limited experiments in combination with common knowledge, ordinary technical knowledge in this field and / or existing technology should be included in the scope of protection of the utility model.

Claims

1. A modular battery cover helium inspection fixture, characterized by: include The lower main body structure includes a first sealing ring, a bottom plate, and a plurality of lower inserts disposed in the bottom plate; the lower inserts are formed with a detection groove for placing the battery cover plate, and are formed with an air guide hole connected to the detection groove; The first sealing ring is sleeved on the air guide hole and is located between the detection groove and the battery cover; the upper main body structure is provided above the lower main body structure and is used to press the battery cover into the detection groove so that the battery cover acts on the first sealing ring to close the air guide hole; A lifting mechanism is provided in the concave hole at the bottom of the detection tank; the lifting mechanism includes at least one bumper and an elastic reset member in contact with the bumper; when the battery cover is subjected to pressure, the battery cover acts on the bumper, which in turn compresses the elastic reset member, causing the bumper to move toward the concave hole; When the battery cover loses pressure, the bumper body returns to its original position to lift the battery cover upward by a certain distance.

2. The modular battery cover helium inspection jig according to claim 1, characterized in that: The elastic return member is located below the bumper body; when the bumper body moves toward the concave hole, the bumper body is flush with the height of the first sealing ring.

3. The modular battery cover helium inspection jig according to claim 2, characterized in that: The bumping body is in the shape of a "sphere", and a return spring is provided in the elastic return member.

4. The modular battery cover helium inspection jig according to claim 1, characterized in that: There are multiple material-impacting bodies and elastic reset members, which are respectively located in multiple concave holes at the bottom of the detection groove and are respectively close to the inner peripheral groove wall of the detection groove.

5. A modular battery cover helium inspection jig according to any one of claims 1 to 4, characterized in that: An air guide channel is formed inside the bottom plate. When the lower insert is arranged in the bottom plate, the air guide channel is communicated with the air guide hole. A second sealing ring is provided between the lower insert and the bottom plate.

6. The modular battery cover helium inspection jig according to claim 5, characterized in that: It also includes at least one limiting mechanism, which is located on the side of the bottom plate and is used to constrain the lower insert in the bottom plate and enable the lower insert to be abutted against the second sealing ring on the bottom plate.

7. The modular battery cover helium inspection jig according to claim 6, characterized in that: The limiting mechanism includes a hook provided on the lower insert and an elastic puller provided on the side of the base plate; the elastic puller is hung on the hook and applies a downward force to the hook to drive the lower insert to move toward the base plate, so that the second sealing ring is compressed and deformed.

8. The modular battery cover helium inspection jig according to claim 7, characterized in that: The elastic pull member includes a spring base and a pull rod mounted in cooperation with the spring base, and the pull rod moves downward by the elastic force applied by the spring base.

9. The modular battery cover helium inspection jig according to claim 6, characterized in that: The limiting mechanism includes a plurality of limiting pins and a plurality of limiting holes provided on the side wall of the bottom plate. The limiting pins are correspondingly inserted through the limiting holes to constrain the lower insert in the bottom plate.

10. The modular battery cover helium inspection jig according to claim 1, characterized in that: The upper main structure includes a top plate and upper inserts arranged on the top plate and corresponding to the lower inserts.

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