Helium testing equipment and assembly line

Abstract

This application provides a helium detection device and assembly line. The helium detection device includes a base and a top sealing module. The top sealing module is disposed opposite to the base and can be close to or away from the base. The top sealing module has a gas supply channel, one end of which has a gas outlet facing the base. The top sealing module includes a first sealing member and a first mounting base. The first sealing member extends towards the base. The end of the first sealing member away from the base is connected to the first mounting base. The gas supply channel is disposed on the first mounting base, and the connection position of the first sealing member and the first mounting base is fixed relative to the gas supply channel. This helium detection device can improve the detection accuracy of helium detection fixtures.

Description

Technical Field

[0001] This application relates to the field of workpiece assembly technology, and more specifically, to a helium inspection device and assembly production line for thermal management workpieces in the fields of vehicles, energy storage, and air conditioning. Background Technology

[0002] Some workpieces need to undergo sealing tests on the production line. To the inventor’s knowledge, helium testing equipment can be used to introduce helium gas into the interface of the workpiece to measure its airtightness.

[0003] As the inventors know, in some workpieces with multiple interfaces, during the use of helium testing equipment, it is necessary to use a sealing component to seal one part of the workpiece's interface and connect the gas supply channel to another part of the interface. The gas supply channel introduces helium into the workpiece's flow channel to achieve the workpiece's airtightness detection.

[0004] However, as the inventors know, the helium gas delivery head on the device has a large degree of freedom. The helium gas delivery head can move to match the position of the gas delivery interface of different workpieces. The helium gas delivery head may have a large range of movement to accommodate a large number of workpieces. However, precisely because the helium gas delivery head has a large range of movement, the three-axis movement to achieve universal matching of the gas delivery head position for different products results in low matching accuracy. The gas delivery head is prone to deviation from the position of the gas delivery interface, and leakage is very likely to occur at the mating point between the gas delivery head and the gas delivery interface, affecting the accuracy of the workpiece airtightness test. Utility Model Content

[0005] This application provides a helium detection equipment and assembly line, which can improve the detection accuracy of the helium detection equipment.

[0006] This application provides a helium detection device, including a base and a top sealing module. The top sealing module is disposed opposite to the base and can be close to or away from the base. The top sealing module has a gas supply channel, one end of which has a gas outlet facing the base. The top sealing module includes a first sealing member extending towards the base. The top sealing module also includes a first mounting base, with the end of the first sealing member facing away from the base connected to the first mounting base. The gas supply channel is disposed on the first mounting base, and the connection position of the first sealing member and the first mounting base is fixed relative to the position of the gas supply channel on the first mounting base.

[0007] In this application, the top sealing module has a gas supply channel with its outlet facing the base. The top sealing module includes a first sealing member, the relative position of which is fixed. Thus, when the top sealing module moves closer to the base, and the base accommodates the product containing the gas supply port and the sealing port, the outlet aligns with the corresponding gas supply port, and the first sealing member aligns with the corresponding sealing port. The fixed relative position of the first sealing member and the outlet adapts to the relatively fixed positions of the gas supply port and the sealing port on the product, improving the alignment accuracy between the outlet and the gas supply port, reducing helium leakage at the mating point between the top sealing module and the gas supply port, and improving the gas seal detection accuracy. Attached Figure Description

[0008] Figure 1 This application provides schematic diagrams of the structure of an assembly production line for some embodiments. Figure 2 This is a schematic diagram of the structure of the product under test provided in some embodiments of this application; Figure 3 This is a schematic diagram of the structure of a helium detection device provided in some embodiments of this application; Figure 4 for Figure 3 A magnified view of a portion of region A in the middle; Figure 5 Exploded views of helium detection equipment provided in some embodiments of this application; Figure 6 Schematic diagrams of the structure of a helium detection device provided in some embodiments of this application; Figure 7 Exploded views of helium detection equipment provided in some embodiments of this application; Figure 8 This is a schematic diagram of the structure of a helium detection device provided in some embodiments of this application; Figure 9 A schematic diagram of the structure of a helium detection device provided for some embodiments of this application (showing a first buffer located between a second mounting base and a second sealing element); Figure 10 A schematic diagram of the structure of a helium detection device provided in some embodiments of this application (showing the connection between the first drive assembly and the second mounting base); Figure 11 A schematic diagram of the structure of a helium detection device provided in some embodiments of this application (showing the connection between the second drive assembly and the abutment). Figure 12 This is an assembly diagram of the third drive component and the top sealing module in some embodiments of this application; Figure 13 This is a schematic diagram of the assembly of the third buffer and the first mounting base in some embodiments of this application; Figure 14A schematic diagram of the structure of a helium detection device provided in some embodiments of this application (showing the connection between the second locking accessory and the base plate). Figure 15 for Figure 14 A magnified view of a portion of region B in the middle.

[0009] icon: 1-Base; 11-Base plate; 12-First positioning block; 13-Second positioning block; 14-Third positioning block; 15-Locking hole; 16-Snap fastener; 2-Top sealing module; 21-First mounting base; 211-Third mounting hole; 212-First mounting hole; 22-Gas supply component; 221-Gas supply channel; 2211-Gas outlet; 222-First pipe section; 223-Second pipe section; 2231-Main body; 2232-Conical part; 23-First sealing component; 24-Third drive assembly; 241-Third mating component; 242-Third telescopic component; 243-Third base; 25-Second buffer component; 26-Third buffer component; 3-Side sealing module; 31-Second mounting base ; 311-Second mounting hole; 32-Second sealing component; 33-First buffer component; 34-First drive assembly; 341-First mating component; 342-First telescopic component; 343-First base; 4-First lock accessory; 5-Abutting component; 6-Second drive assembly; 61-Second mating component; 62-Second telescopic component; 63-Second base; 7-Second lock accessory; 71-Helium detection equipment; 72-Rod; 73-Gasket; 731-Notch; 10-Helium detection equipment; 20-Product to be tested; 201-Interface; 202-Internal channel; 100-Helium detection station; 200-Welding station; 1000-Assembly production line; Z-First direction; X-Second direction; Y-Third direction. Detailed Implementation

[0010] Helium leak detectors are used to test the airtightness of workpieces. The workpieces can be components with internal channels, such as pipes.

[0011] The following description, in conjunction with the accompanying drawings, illustrates the helium detection equipment and the assembly line for using it: Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of an assembly production line 1000 provided in some embodiments of this application; Figure 2 This is a schematic diagram of the structure of the product under test 20 provided in some embodiments of this application. Embodiments of this application provide an assembly production line 1000, including a welding station 200 and a helium inspection station 100. The helium inspection station 100 is located downstream of the welding station 200, and is equipped with a helium inspection device 10.

[0012] In this embodiment, the product under test 20 may have an internal channel 202, which may be one or more. The outer wall of the product under test 20 may have multiple interface portions 201, which communicate with the internal channel 202. In an embodiment where there is only one internal channel 202, all interface portions 201 are connected to it. In an embodiment where there are multiple internal channels 202, each internal channel 202 is connected to multiple interface portions 201. Multiple interface portions 201 may be located on the same side of the product under test 20. Alternatively, some interface portions 201 may be located on one side of the product under test 20, while others may be located on the other side.

[0013] The helium testing station 100 is located downstream of the welding station 200. After welding, the product 20 to be tested passes through the helium testing station 100, and the helium testing equipment 10 tests the airtightness of the product 20 to be tested.

[0014] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of a helium detection device 10 provided in some embodiments of this application. Embodiments of this application provide a helium detection device 10, including a base 1 and a top sealing module 2. The top sealing module 2 is disposed opposite to the base 1, and has a gas supply channel 221. One end of the gas supply channel 221 has a gas outlet 2211, which faces the base 1. The top sealing module 2 includes a first sealing member 23, which extends towards the base 1, allowing the top sealing module 2 to be close to or away from the base 1. The top sealing module 2 includes a first mounting base 21, and the end of the first sealing member 23 facing away from the base 1 is connected to the first mounting base 21. The gas supply channel 221 is disposed on the first mounting base 21, and the connection position of the first sealing member 23 and the first mounting base 21 is fixed relative to the gas supply channel 221 on the first mounting base 21.

[0015] In this application, the gas delivery channel 221 is disposed on the first mounting base 21. At least a portion of the gas delivery channel 221 may be located inside the first mounting base 21, or it may be located outside the first mounting base 21. In some embodiments, such as those described in subsequent specific embodiments, at least a portion of the gas delivery channel 221 is located within the gas delivery component 22, which is mounted on the first mounting base 21.

[0016] The base 1 supports the product under test (DUT) 20, thus restricting its position. The top sealing module 2 seals the interface 201 of the DUT 20 on the side facing away from the base 1. The top sealing module 2 is positioned opposite the base 1, and the DUT 20 can be placed between the top sealing module 2 and the base 1 to facilitate the assembly of the DUT 20 and the helium detection equipment 10. After the DUT 20 is installed on the base 1, the first sealing member 23 and the outlet 2211 of the gas supply channel 221 face the base 1, so that the first sealing member 23 and the outlet 2211 of the gas supply channel 221 can seal the interface 201 of the DUT 20.

[0017] The outlet 2211 of the gas supply channel 221 is used to connect to the interface 201 and supply gas to the internal channel 202 of the product under test 20 through the interface 201. The number of gas supply channels 221 can be one, with one gas supply channel 221 supplying gas to one internal channel 202; the number of gas supply channels 221 can also be multiple, with multiple gas supply channels 221 supplying gas to the same internal channel 202; or multiple gas supply channels 221 supplying gas to multiple internal channels 202.

[0018] The first sealing element 23 is used to connect to the interface 201 to seal the interface 201. There can be one or more first sealing elements 23. In embodiments where there are multiple first sealing elements 23, each first sealing element 23 seals one interface 201.

[0019] Both the first sealing element 23 and the gas delivery channel 221 are integrated into the top sealing module 2. When the top sealing module 2 moves, the first sealing element 23 moves along with the top sealing module 2. During the assembly of the product under test 20, after the product under test 20 is assembled onto the base 1, the top sealing module 2 moves to the assembly position so that the outlet 2211 of the gas delivery channel 221 aligns with a portion of the interface 201, and the first sealing element 23 moves to the position of sealing the other portion of the interface 201.

[0020] In this embodiment, a gas delivery channel 221 is provided in the top sealing module 2, and the top sealing module 2 includes a first sealing element 23. The top sealing module 2 can integrate the gas delivery channel 221 and the first sealing element 23. After the product under test 20 is installed on the base 1, the gas delivery channel 221 and the first sealing element 23 can move together to the assembly position to realize the assembly work of helium testing of the product under test 20. After the helium testing of the product under test 20 is completed, the first mounting base 21 can also drive the gas delivery channel 221 and the first sealing element 23 to detach from the product under test 20, realizing the disassembly of the helium testing equipment 10. In this helium testing device 10, on the one hand, the gas supply channel 221 and the first sealing component 23 can be assembled and disassembled together, improving the assembly and disassembly efficiency of the helium testing device 10; on the other hand, the relatively fixed positions of the gas supply channel 221 and the first sealing component 23 can improve the fitting accuracy and stability of the interface 201 between the gas supply channel 221 and the first sealing component 23 and the product under test 20, reducing the risk of leakage due to misalignment between the first sealing component 23 and the interface 201 and between the gas supply channel 221 and the interface 201, and improving the detection accuracy of the airtightness test of the product under test 20.

[0021] In some embodiments, please continue to refer to Figure 3 And further refer to Figure 4 , Figure 4 for Figure 3 A partial enlarged view of area A in the middle. The top sealing module 2 includes a first mounting base 21 and an air supply component 22. Both the air supply component 22 and the first sealing component 23 are mounted on the first mounting base 21. The air supply component 22 extends toward the base 1. At least a portion of the air supply channel 221 is located inside the air supply component 22. The air outlet 2211 is located at the end of the air supply component 22 facing the base 1.

[0022] The number of gas supply components 22 can be one or more. Both the gas supply component 22 and the first sealing component 23 are mounted on the first mounting base 21. The gas supply component 22 can be fixedly connected to the first mounting base 21, for example, by welding. Alternatively, the gas supply component 22 can be detachably connected to the first mounting base 21, for example, by fasteners such as bolts or rivets. Similarly, the first sealing component 23 can be fixedly connected to the first mounting base 21, for example, by welding. Alternatively, the first sealing component 23 can be detachably connected to the first mounting base 21, for example, by fasteners such as bolts or rivets. The connection position of the first sealing component 23 and the first mounting base 21 is fixed relative to the gas transmission channel 221 at the position of the first mounting base 21. It can be that the welding position or fastener connection position of the first sealing component 23 and the first mounting base 21 is fixed relative to the fastener connection position or welding position of the gas transmission component 22 and the first mounting base 21.

[0023] The entire gas supply passage 221 may be located within the gas supply component 22. Alternatively, a portion of the gas supply passage 221 may be located within the first mounting base 21, while another portion may be located within the gas supply component 22.

[0024] In this embodiment, both the gas supply component 22 and the first sealing component 23 are installed on the first mounting base 21. Both the gas supply component 22 and the first sealing component 23 can move with the first mounting base 21 to achieve synchronous assembly of the gas supply component 22 and the first sealing component 23. This improves the assembly efficiency of the gas supply component 22 and the first sealing component 23, reduces the risk of misalignment and leakage between the interface 201 of the gas supply component 22 and the product under test 20, and between the interface 201 of the first sealing component 23 and the product under test 20, and improves the detection accuracy of the helium detection fixture.

[0025] In some embodiments, please continue to refer to Figure 4 The first mounting base 21 is provided with a first mounting hole 212, and the gas supply component 22 passes through the first mounting hole 212. The diameter of the portion of the gas supply component 22 located in the first mounting hole 212 is smaller than the diameter of the first mounting hole 212. The first sealing component 23 is installed on the first mounting base 21, and the installation position of the first sealing component 23 on the first mounting base 21 is fixed to the position of the first mounting hole 212.

[0026] The diameter of the portion of the gas supply component 22 located only within the first mounting hole 212 may be smaller than the diameter of the first mounting hole 212. Alternatively, the diameters of both the portion of the gas supply component 22 located within the first mounting hole 212 and at least the portion located outside the first mounting hole 212 may be smaller than the diameter of the first mounting hole 212. After the end of the gas supply component 22 facing away from the base 1 passes through the first mounting hole 212, it can be connected to a gas supply device, which can supply gas to the gas supply component 22.

[0027] The first sealing member 23 is fixed at the mounting position on the first mounting base 21 and the position of the first mounting hole 212, so that the first sealing member 23 and the gas delivery member 22 installed in the first mounting hole 212 can move synchronously.

[0028] In this embodiment, the diameter of the portion of the gas supply component 22 located within the first mounting hole 212 is smaller than the diameter of the first mounting hole 212. This allows the portion of the gas supply component 22 located within the first mounting hole 212 to move within the first mounting hole 212, thereby facilitating the adjustment of the position of the gas supply component 22. This makes it easier to fine-tune the position of the gas supply component 22 to match the interface portion 201, reducing the difficulty of docking the gas supply component 22 with the interface portion 201.

[0029] In some embodiments, please continue to refer to Figure 4The gas transmission component 22 includes a first pipe section 222 and a second pipe section 223. The first pipe section 222 is connected to the second pipe section 223. The gas transmission channel 221 passes through the first pipe section 222 and the second pipe section 223. The first pipe section 222 passes through the first mounting hole 212. The second pipe section 223 is located on the side of the first mounting base 21 facing the base 1. The diameter of the first pipe section 222 is smaller than the diameter of the first mounting hole 212, and the diameter of the second pipe section 223 is larger than the diameter of the first mounting hole 212.

[0030] A portion of the first pipe segment 222 passes through the first mounting hole 212, while another portion is located on the side of the first mounting base 21 facing away from the base 1. The portion of the first pipe segment 222 outside the first mounting base 21 can be connected to the air pipe of the gas delivery device via an air pipe connector. When the diameter of the air pipe connector is larger than the diameter of the first mounting hole 212, it can restrict the movement of the first pipe segment 222 towards the base 1. The second pipe segment 223 is connected to the first pipe segment 222 and extends towards the base 1. At least a portion of the diameter of the second pipe segment 223 is larger than the diameter of the first mounting hole 212, thereby restricting the second pipe segment 223 from passing through the first mounting hole 212. When the gas delivery component 22 abuts against the internal channel 202 opening of the product under test 20, the side of the first mounting base 21 facing the base 1 abuts against the second pipe segment 223 to press the second pipe segment 223 tightly against the internal channel 202 opening of the product under test 20.

[0031] In this embodiment, the diameter of the first pipe segment 222 is smaller than the diameter of the first mounting hole 212. The first pipe segment 222 can move within the first mounting hole 212 to fine-tune the mating position of the gas supply component 22 and the interface portion 201, reducing the risk of air leakage between the gas supply component 22 and the interface portion 201. The diameter of the second pipe segment 223 is larger than the diameter of the first mounting hole 212. The side of the first mounting base 21 facing the base 1 can abut against the second pipe segment 223 to press the second pipe segment 223 tightly into the internal channel 202 opening of the product under test 20, reducing the assembly difficulty of the gas supply component 22.

[0032] In some embodiments, please continue to refer to Figure 4 The second pipe section 223 includes a main body 2231 and a tapered section 2232. One end of the main body 2231 is connected to the first pipe section 222, and the other end of the main body 2231 is connected to the tapered section 2232. The outer diameter of the tapered section 2232 gradually decreases from the main body 2231 toward the air outlet 2211.

[0033] The tapered portion 2232 guides the second pipe section 223 into the interface portion 201, thereby reducing the difficulty of fitting the second pipe section 223 and the interface portion 201 and reducing collisions between the gas delivery component 22 and the product under test 20. When the tapered portion 2232 guides the second pipe section 223 to move, the outer diameter of the first pipe section 222 is smaller than the outer diameter of the first mounting hole 212, allowing the first pipe section 222 to be finely adjusted within the first mounting hole 212, providing room for movement between the tapered portion 2232 and the interface portion 201, and improving the adaptability of the gas delivery component 22.

[0034] In some embodiments, please refer to Figure 5 , Figure 5 This is an exploded view of a helium detection device 10 provided in some embodiments of this application. The helium detection device 10 includes a side sealing module 3, which is located on the side of the base 1. The side sealing module 3 includes a second mounting base 31 and a second sealing member 32. The second sealing member 32 is mounted on the second mounting base 31. A first sealing member 23 extends along a first direction Z, and a second sealing member 32 extends along a second direction X, which intersects with the first direction Z.

[0035] The side sealing module 3 is located on the side of the base 1. When the product under test 20 is placed on the base 1, the side sealing module 3 can block the interface portion 201 located on the side of the product under test 20 along the second direction X. The number of second sealing members 32 can be one or more. In embodiments where there are multiple second sealing members 32, multiple second sealing members 32 can block multiple interface portions 201 communicating with the same internal channel 202; or multiple second sealing members 32 can block multiple interface portions 201 communicating with multiple internal channels 202.

[0036] The first direction Z can be parallel to the arrangement direction of the top sealing module 2 and the base 1, and the second direction X can be parallel to the arrangement direction of the product under test 20 and the side sealing module 3. For example, the first direction Z is perpendicular to the second direction X.

[0037] In some other embodiments, based on the extension of this application, the angle between the first direction Z and the second direction X can also be an acute angle or an obtuse angle.

[0038] In this embodiment, a side sealing module 3 is provided, and the second sealing member 32 of the side sealing module 3 can seal the interface portion 201 on the side of the product under test 20. The second sealing member 32 is disposed on the second mounting base 31, so that the second sealing member 32 and the product under test 20 can be assembled by moving the second mounting base 31, which reduces the assembly difficulty of the helium detection equipment 10 and improves the detection efficiency of the helium detection equipment 10.

[0039] In some embodiments, please refer to Figure 6 and Figure 7 , Figure 6Schematic diagram of the structure of the helium detection device 10 provided in some embodiments of this application; Figure 7 This is an exploded view of a helium detection device 10 provided in some embodiments of this application. The helium detection device 10 includes a first locking attachment 4, which is locked to a base 1; a second mounting base 31 is provided with a second mounting hole 311, which extends through the second mounting base 31 along a second direction X, allowing the first locking attachment 4 to pass through the second mounting hole 311 for pre-installation and positioning of the side sealing module 3; the base 1 includes a base plate 11 and a first positioning block 12, which is mounted on the side of the base plate 11 facing the first mounting base 21, and the first positioning block 12 and the second mounting base 31 are arranged opposite each other along the second direction X.

[0040] The first lock accessory 4 can be a bolt, a snap-fit ​​block, etc. For example, the base 1 is provided with a buckle, and the first lock accessory 4 is a snap-fit ​​block, which passes through the second mounting hole 311 and snaps into the buckle.

[0041] The first positioning block 12 and the second mounting base 31 are respectively disposed on both sides of the mounting position of the product under test 20, so that the first positioning block 12 and the second mounting base 31 are arranged opposite each other along the second direction X. The first positioning block 12 can be fixedly connected to the base plate 11, for example, the first positioning block 12 is welded to the base plate 11. The first positioning block 12 can also be detachably connected to the base plate 11, for example, the first positioning block 12 is bolted to the base plate 11.

[0042] The first positioning block 12 has a positioning surface, which can abut against the outer wall of the product to be tested 20 to achieve positioning of the product to be tested 20 by the first positioning block 12.

[0043] In this embodiment, the first locking attachment 4 passes through the second mounting hole 311 and is locked to the base 1. The first locking attachment 4 can fix the position of the second mounting base 31 and the base 1, thereby making the sealing of the interface 201 of the product under test 20 by the second sealing member 32 more stable. A first positioning block 12 is provided on the base plate 11, and the first positioning block 12 is positioned opposite to the second mounting base 31. On the one hand, the first positioning block 12 can stabilize the position of the product under test 20 along the second direction X, improving the positional stability of the product under test 20 on the base plate 11. On the other hand, the first positioning block 12 can restrict the product under test 20 from moving further from the second mounting base 31 toward the first positioning block 12, thereby improving the sealing effect of the second sealing member 32 on the interface 201 of the side of the product under test 20 and improving the sealing stability of the interface 201 of the product under test 20 by the second sealing member 32.

[0044] In some embodiments, please continue to refer to Figure 7The base 1 includes a second positioning block 13 and a third positioning block 14, both of which are mounted on the side of the base plate 11 facing the first mounting seat 21. The second positioning block 13 and the third positioning block 14 are arranged opposite each other along a third direction Y, with the first direction Z, the second direction X, and the third direction Y being perpendicular to each other. At least one of the second positioning block 13 and the third positioning block 14 is provided with a locking hole 15 that mates with the first locking accessory 4. The first mounting seat 21 is provided with a third mounting hole 211, which extends along the first direction Z. The first direction Z is parallel to the extension direction of the first sealing member 23. The helium detection device 10 includes a second locking accessory 7, which is locked and connected to the base 1. The second locking accessory 7 can pass through the third mounting hole 211.

[0045] The first positioning block 12, the second positioning block 13, and the third positioning block 14 can be arranged circumferentially on the outside of the product under test 20. Both the second positioning block 13 and the third positioning block 14 have positioning surfaces, and the positioning surface of either the second positioning block 13 or the third positioning block 14 can contact the outer wall of the product under test 20 to position it. In positioning the product under test 20, one of the second positioning block 13 and the third positioning block 14, the first positioning block 12, and the base plate 11 can position the product under test 20. In actual positioning of the product under test 20, only one of the second positioning block 13 and the third positioning block 14, the first positioning block 12, and the base plate 11 are needed to achieve positioning.

[0046] It is permissible that only one of the second positioning block 13 and the third positioning block 14 is provided with a locking hole 15 that mates with the first lock accessory 4. Alternatively, it is permissible that both the second positioning block 13 and the third positioning block 14 are provided with locking holes 15 that mate with the first lock accessory 4.

[0047] In this embodiment, the second positioning block 13 and the third positioning block 14 are arranged opposite each other along the third direction Y. One of the second positioning block 13 and the third positioning block 14, the base plate 11, and the first positioning block 12 can limit the position of the product under test 20, thereby achieving the positioning of the product under test 20. In this way, on the one hand, the second positioning block 13 and the third positioning block 14 can be used for positioning the product under test 20; on the other hand, the second positioning block 13 and the third positioning block 14 can be used to fix the second mounting base 31, reducing the installation difficulty of the second mounting base 31 and improving the performance of the second positioning block 13 and the third positioning block 14.

[0048] In some embodiments, please continue to refer to Figure 7The base 1 includes a latching member 16. The latching member 16 is rotatably mounted on the base plate 11. The latching member 16 has a first position and a second position. In the first position, the latching member 16 can hold the product under test 20 to restrict the product under test 20 from moving away from the base plate 11 in a first direction Z. In the second position, the latching member 16 can avoid the product under test 20 to allow the product under test 20 to be mounted onto the base plate 11 or to allow the product under test 20 to be detached from the base plate 11.

[0049] In some embodiments, please refer to Figure 8 and Figure 9 , Figure 8 This is a schematic diagram of the structure of the helium detection device 10 provided in some embodiments of this application; Figure 9 A schematic diagram of the structure of a helium detection device 10 provided in some embodiments of this application (showing a first buffer 33 located between a second mounting base 31 and a second sealing member 32). The second sealing member 32 is movably mounted on the second mounting base 31 along a second direction X. The side sealing module 3 includes the first buffer 33, which is disposed between the second mounting base 31 and the second sealing member 32.

[0050] The second sealing member 32 is movable along the second direction X, allowing it to move closer to or further away from the product under test 20 mounted on the base 1. The second mounting base 31 may have a first mounting cavity, with one end of the second sealing member 32 passing through the first mounting cavity and the other end extending out, capable of engaging with the interface portion 201 of the product under test 20. The second sealing member 32 has an annular protrusion, and a first buffer member 33 is disposed between the annular protrusion and the bottom wall of the first mounting cavity of the second mounting base 31, allowing the first buffer member 33 to buffer the movement of the second sealing member 32 along the second direction X. The first buffer member 33 may be a spring, elastic rubber, or the like.

[0051] In this embodiment, the first buffer 33 is disposed between the second mounting base 31 and the second sealing member 32. The first buffer 33 can buffer the movement of the second sealing member 32 along the second direction X, thereby reducing the risk of the second sealing member 32 damaging the product under test 20 when it moves along the second direction X.

[0052] In some embodiments, please refer to Figure 10 , Figure 10 This is a schematic diagram of the structure of a helium detection device 10 provided in some embodiments of this application (showing the connection between a first drive assembly 34 and a second mounting base 31). The helium detection device 10 includes a first drive assembly 34, and a second mounting base 31 is connected to the output end of the first drive assembly 34. The first drive assembly 34 is configured to drive the second mounting base 31 to move along a second direction X.

[0053] The first drive assembly 34 is used to drive the second mounting base 31 to move along the second direction X. The drive source of the first drive assembly 34 can be a motor, a telescopic rod, etc., for example, Figure 8 As shown, the first drive assembly 34 includes a first mating member 341, a first telescopic member 342, and a first base 343. The first telescopic member 342 is mounted on the first base 343. The power output end of the first telescopic member 342 is connected to the first mating member 341. The first mating member 341 is used to mate with the second mounting base 31. The power output end of the first telescopic member 342 extends and retracts along the second direction X, so that the first mating member 341 drives the second mounting base 31 to move along the second direction X.

[0054] In this embodiment, the first driving component 34 drives the second mounting base 31 to move along the second direction X, which reduces the difficulty for the second mounting base 31 to drive the second sealing member 32 to seal the interface portion 201 along the second direction X or to disengage from the interface portion 201 along the second direction X. Furthermore, the first driving component 34 drives the second mounting base 31 to move, which improves the stability of the movement of the second mounting base 31 and enhances the positional accuracy of the second mounting base 31.

[0055] In some embodiments, please refer to Figure 11 , Figure 11 This is a schematic diagram of the structure of a helium detection device 10 provided in some embodiments of this application (showing the connection between the second drive assembly 6 and the abutment 5). The helium detection device 10 includes an abutment 5 and a second drive assembly 6. The abutment 5 is connected to the output end of the second drive assembly 6. The abutment 5 and the second mounting base 31 are disposed opposite each other along the second direction X. The second drive assembly 6 can drive the abutment 5 to move along the second direction X.

[0056] The second drive assembly 6 is used to drive the abutment 5 to move along the second direction X. The drive source of the second drive assembly 6 can be a motor, a telescopic rod, etc., for example, Figure 9 As shown, the second drive assembly 6 includes a second mating member 61, a second telescopic member 62, and a second base 63. The second telescopic member 62 is mounted on the second base 63. The power output end of the second telescopic member 62 is connected to the second mating member 61. The second mating member 61 is used to cooperate with the abutment member 5. The power output end of the second telescopic member 62 extends and retracts along the second direction X. The second mating member 61 drives the abutment member 5 to move along the second direction X.

[0057] In this embodiment, abutment 5 is provided, which can restrict the movement of the product under test 20 along the second direction X. When the second sealing member 32 abuts against the interface portion 201 of the product under test 20 along the second direction X, the abutment 5 can abut against the product under test 20, thereby improving the sealing effect of the second sealing member 32 on the interface portion 201. A second driving component 6 is provided to drive the abutment 5 to move along the second direction X. The second driving component 6 can adjust the position of the abutment 5 along the second direction X, so that the abutment 5 can restrict the movement of the product under test 20 along the second direction X at different positions, thereby improving the performance of the abutment 5.

[0058] In some embodiments, please refer to Figure 12 , Figure 12 This is a schematic diagram of the assembly of the third drive assembly 24 and the top sealing module 2 in some embodiments of this application. The top sealing module 2 includes the third drive assembly 24, and the first mounting base 21 is connected to the output end of the third drive assembly 24. The third drive assembly 24 can drive the first mounting base 21 to move along the first direction Z, which is parallel to the extension direction of the first sealing member 23.

[0059] The third drive assembly 24 is used to drive the abutment 5 to move along the first direction Z. The drive source of the third drive assembly 24 can be a motor, a telescopic rod, etc. For example, Figure 14 As shown, the third drive assembly 24 includes a third mating member 241, a third telescopic member 242, and a third base 243. The third telescopic member 242 is mounted on the third base 243. The power output end of the third telescopic member 242 is connected to the third mating member 241. The third mating member 241 is used to mate with the first mounting base 21. The power output end of the third telescopic member 242 extends and retracts along the first direction Z. The third mating member 241 drives the first mounting base 21 to move along the first direction Z.

[0060] In this embodiment, a third driving component 24 is provided to drive the first mounting base 21 to move along the first direction Z, which reduces the assembly difficulty of the top sealing module 2 and the base 1.

[0061] In some embodiments, please continue to refer to Figure 12 And further refer to Figure 13 , Figure 13 This is a schematic diagram of the assembly of the third buffer 26 and the first mounting base 21 in some embodiments of this application. The gas supply component 22 and the first sealing component 23 are both movably mounted on the first mounting base 21 along the first direction Z. The top sealing module 2 includes a second buffer 25 and a third buffer 26. The second buffer 25 is disposed between the first mounting base 21 and the gas supply component 22, and the third buffer 26 is disposed between the first mounting base 21 and the first sealing component 23. The first direction Z is parallel to the extension direction of the first sealing component 23.

[0062] The air delivery component 22 is movable along the first direction Z, allowing it to move closer to or further away from the product under test 20 mounted on the base 1. The first mounting base 21 may have a second mounting cavity, with one end of the air delivery component 22 passing through the second mounting cavity and the other end extending out, capable of engaging with the interface portion 201 of the product under test 20. The air delivery component 22 has a first annular protrusion, and a second buffer 25 is disposed between the first annular protrusion and the bottom wall of the second mounting cavity of the first mounting base 21, allowing the second buffer 25 to buffer the movement of the air delivery component 22 along the first direction Z. The second buffer 25 may be a spring, elastic rubber, or the like.

[0063] The first sealing member 23 can move along the second direction X, allowing it to move closer to or further away from the product under test 20 mounted on the base 1. The second mounting base 31 may have a third mounting cavity, with one end of the first sealing member 23 passing through the third mounting cavity and the other end extending out, capable of engaging with the interface portion 201 of the product under test 20. The first sealing member 23 has a second annular protrusion, and a third buffer member 26 is disposed between the second annular protrusion and the bottom wall of the third mounting cavity of the second mounting base 31, allowing the third buffer member 26 to buffer the movement of the first sealing member 23 along the first direction Z. The third buffer member 26 may be a spring, elastic rubber, or the like.

[0064] In this embodiment, a second buffer 25 is disposed between the first mounting base 21 and the gas delivery component 22. The second buffer 25 can buffer the movement of the gas delivery component 22 along the first direction Z, reducing the risk of damage when the gas delivery component 22 comes into contact with the product under test 20. A third buffer 26 is disposed between the first mounting base 21 and the first sealing component 23. The third buffer 26 can buffer the movement of the first sealing component 23 along the first direction Z, reducing the risk of damage when the first sealing component 23 comes into contact with the product under test 20.

[0065] In some embodiments, please refer to Figure 14 , Figure 14This is a schematic diagram of the structure of a helium detection device 10 provided in some embodiments of this application (showing the connection between the second locking attachment 7 and the base plate 11). The base 1 includes a base plate 11, a first positioning block 12, a second positioning block 13, and a third positioning block 14. The base plate 11 and the first mounting base 21 are arranged opposite each other along the first direction Z. The first positioning block 12, the second positioning block 13, and the third positioning block 14 are all mounted on the side of the base plate 11 facing the first mounting base 21. The second positioning block 13 and the third positioning block 14 are arranged opposite each other along the third direction Y. The second positioning block 13 and the third positioning block 14 are located on the same side of the first positioning block 12 along the second direction X and are spaced apart from the first positioning block 12. The first direction Z, the second direction X, and the third direction Y are perpendicular to each other. The first mounting base 21 is provided with a third mounting hole 211, which extends along the first direction Z. The helium detection device 10 includes a second locking attachment 7, which can pass through the third mounting hole 211 and be locked and connected to the base 1. The first direction Z is parallel to the extension direction of the first sealing member 23.

[0066] The product under test 20 can be positioned between the base plate 11 and the first mounting base 21. The first positioning block 12, the second positioning block 13, and the third positioning block 14 are spaced apart around the circumference of the product under test 20. The second positioning block 13 and the third positioning block 14 are located on the same side of the product under test 20 along the second direction X, and the first positioning block 12 is located on the other side of the product under test 20.

[0067] The second locking accessory 7 can be a bolt, a snap-fit ​​block, etc. For example, the base 1 is provided with a buckle, and the second locking accessory 7 is a snap-fit ​​block, which passes through the third mounting hole 211 and engages with the buckle. The number of second locking accessories 7 can be one or more. In embodiments where there are multiple second locking accessories 7, the multiple second locking accessories 7 are spaced apart on the first mounting base 21.

[0068] In this embodiment, the first positioning block 12, the second positioning block 13, and the third positioning block 14 are disposed on the base plate 11. One of the second positioning blocks 13 and the third positioning block 14, and the base plate 11 of the first positioning block 12, can restrict the position of the product under test 20, thereby achieving the positioning of the product under test 20 and improving the positioning accuracy of the product under test 20. A second locking accessory 7 is disposed and locked to the base 1 through the third mounting hole 211. The second locking accessory 7 can lock the top sealing module 2 and the base 1, thereby improving the sealing stability of the gas supply component 22 and the first sealing component 23 at the interface 201 of the product under test 20, and improving the sealing effect of the helium detection equipment 10 on the interface 201.

[0069] In some embodiments, please refer to Figure 14 and Figure 15 , Figure 15 for Figure 14A partial enlarged view of area B. The second locking accessory 7 includes a head 71, a rod 72, and a washer 73. The head 71 is located at one end of the rod 72, which is locked to the base 1. The washer 73 is fitted onto the rod 72. Along the first direction Z, the head 71 is located on the side of the first mounting base 21 opposite to the base 1, and the washer 73 is located between the head 71 and the first mounting base 21. The washer 73 has a notch 731 for the rod 72 to engage. The diameter of the head 71 is smaller than the diameter of the third mounting hole 211, and the outer diameter of the washer 73 is larger than the diameter of the third mounting hole 211.

[0070] The diameter of the head 71 is larger than the diameter of the rod 72. The base 1 can be provided with a screw hole, and the rod 72 is provided with an external thread, with the rod 72 and the base 1 threadedly engaged. The inner diameter of the washer 73 is smaller than the diameter of the head 71, and the outer diameter of the washer 73 is larger than the diameter of the third mounting hole 211.

[0071] In this embodiment, a notch 731 is provided on the gasket 73 for the rod 72 to engage. During the assembly of the top sealing module 2, as the top sealing module 2 approaches the base 1, the head 71 and the rod 72, which are pre-installed on the base 1, can directly pass through the third mounting hole 211. After the top sealing module 2 reaches the preset position, the gasket 73 can enter between the head 71 and the first mounting seat 21, thereby preventing the head 71 from re-entering the third mounting hole 211 and disengaging from the first mounting seat 21. This second locking accessory 7 reduces the assembly difficulty of the top sealing module 2 and the base 1 and improves the assembly efficiency of the helium detection device 10.

[0072] This application provides an assembly production line 1000, including a welding station 200 and a helium inspection device 10 provided in any of the above embodiments, wherein the helium inspection device 10 is located downstream of the welding station 200.

[0073] Please continue to refer to Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 14 and Figure 15This application provides a helium detection device 10, including a base 1, a top sealing module 2, a side sealing module 3, and a first sealing element 23. The top sealing module 2 includes a first mounting base 21 and a gas delivery element 22. The first mounting base 21 is disposed opposite to the base 1. Both the first sealing element 23 and the gas delivery element 22 are mounted on the first mounting base 21 and extend towards the base 1. The side sealing module 3 is located on the side of the base 1. The side sealing module 3 includes a second mounting base 31 and a second sealing element 32. The second sealing element 32 is mounted on the second mounting base 31. The first sealing element 23 extends along a first direction Z, and the second sealing element 32 extends along a second direction X. The base 1 includes a base plate 11, a first positioning block 12, a second positioning block 13, and a third positioning block 14. The base plate 11 and the first mounting base 21 are arranged opposite each other along the first direction Z. The first positioning block 12, the second positioning block 13, and the third positioning block 14 are all installed on the side of the base plate 11 facing the first mounting base 21. The second positioning block 13 and the third positioning block 14 are arranged opposite each other in the third direction Y. The second positioning block 13 and the third positioning block 14 are located on the same side of the first positioning block 12 along the second direction X, and are spaced apart from the first positioning block 12. The first direction Z, the second direction X, and the third direction Y are perpendicular to each other. The helium detection device 10 includes two first locking accessories 4. The second mounting base 31 is provided with two second mounting holes 311. The two second mounting holes 311 penetrate the second mounting base 31 along the second direction X. The two first locking accessories 4 are respectively inserted into the two second mounting holes 311 and locked and connected to the second positioning block 13 and the third positioning block 14. The first mounting base 21 is provided with a third mounting hole 211, which extends along the first direction Z. The helium detection device 10 includes a second locking accessory 7, which includes a head 71, a rod 72, and a gasket 73. The head 71 is located at one end of the rod 72, which is locked to the base 1. The gasket 73 is fitted onto the rod 72 along the first direction Z. The head 71 is located on the side of the first mounting base 21 away from the base 1, and the gasket 73 is located between the head 71 and the first mounting base 21. The gasket 73 has a notch 731 for the rod 72 to be inserted. The diameter of the head 71 is smaller than the diameter of the third mounting hole 211, and the outer diameter of the gasket 73 is larger than the diameter of the third mounting hole 211. The first mounting base 21 is also provided with a first mounting hole 212, through which a gas supply component 22 passes. The diameter of the portion of the gas supply component 22 located within the first mounting hole 212 is smaller than the diameter of the first mounting hole 212.

[0074] In this helium testing device 10, a gas delivery channel 221 is provided in the top sealing module 2, and the top sealing module 2 includes a first sealing element 23. The top sealing module 2 can integrate the gas delivery channel 221 and the first sealing element 23. After the product under test 20 is installed on the base 1, the gas delivery channel 221 and the first sealing element 23 can move together to the assembly position to realize the assembly work of helium testing of the product under test 20. After the helium testing of the product under test 20 is completed, the first mounting base 21 can also drive the gas delivery channel 221 and the first sealing element 23 to detach from the product under test 20, realizing the disassembly of the helium testing device 10. In this helium testing device 10, on the one hand, the gas supply channel 221 and the first sealing component 23 can be assembled and disassembled together, improving the assembly and disassembly efficiency of the helium testing device 10; on the other hand, the relatively fixed positions of the gas supply channel 221 and the first sealing component 23 can improve the fitting accuracy and stability of the interface 201 between the gas supply channel 221 and the first sealing component 23 and the product under test 20, reducing the risk of leakage due to misalignment between the first sealing component 23 and the interface 201 and between the gas supply channel 221 and the interface 201, and improving the detection accuracy of the airtightness test of the product under test 20. A first positioning block 12 is provided on the base plate 11, and the first positioning block 12 is positioned opposite to the second mounting base 31. On the one hand, the first positioning block 12 can stabilize the position of the product under test 20 along the second direction X, thereby improving the positional stability of the product under test 20 on the base plate 11. On the other hand, the first positioning block 12 can restrict the product under test 20 from continuing to move from the second mounting base 31 to the first positioning block 12, thereby improving the sealing effect of the second sealing member 32 on the interface portion 201 on the side of the product under test 20, and improving the sealing stability of the interface portion 201 of the product under test 20. A notch 731 is provided on the gasket 73 for the rod 72 to engage. During the assembly of the top sealing module 2, as the top sealing module 2 approaches the base 1, the head 71 and the rod 72, which are pre-installed on the base 1, can directly pass through the third mounting hole 211. After the top sealing module 2 reaches the preset position, the gasket 73 can enter between the head 71 and the first mounting seat 21, thereby preventing the head 71 from re-entering the third mounting hole 211 and disengaging from the first mounting seat 21. This second locking accessory 7 reduces the assembly difficulty of the top sealing module 2 and the base 1.

[0075] Please continue to refer to Figures 7-12This application provides a helium detection device 10, including a base 1, a top sealing module 2, and a side sealing module 3. The top sealing module 2 includes a first mounting base 21, a gas supply component 22, and a first sealing component 23. The first mounting base 21 is disposed opposite to the base 1. Both the first sealing component 23 and the gas supply component 22 are mounted on the first mounting base 21 and extend towards the base 1. The side sealing module 3 is located on the side of the base 1. The side sealing module 3 includes a second mounting base 31 and a second sealing component 32. The second sealing component 32 is mounted on the second mounting base 31. The first sealing component 23 extends along a first direction Z, and the second sealing component 32 extends along a second direction X. The side sealing module 3 includes a first driving assembly 34. The second mounting base 31 is connected to the output end of the first driving assembly 34. The first driving assembly 34 is configured to drive the second mounting base 31 to move along the second direction X. The helium detector 10 includes abutment 5 and a second drive assembly 6. Abutment 5 is connected to the output end of the second drive assembly 6. Abutment 5 and a second mounting base 31 are disposed opposite each other along a second direction X. The second drive assembly 6 is configured to drive abutment 5 to move along the second direction X. The top sealing module 2 includes a third drive assembly 24. A first mounting base 21 is connected to the output end of the third drive assembly 24. The third drive assembly 24 is configured to drive the first mounting base 21 to move along a first direction Z. The first direction Z is parallel to the extension direction of the first sealing member 23.

[0076] In this helium detection device 10, a first drive assembly 34 drives the second mounting base 31 to move along the second direction X, reducing the difficulty of the second mounting base 31 driving the second sealing member 32 to seal the interface 201 along the second direction X or to spring away from the interface 201 along the second direction X. Furthermore, the first drive assembly 34 driving the second mounting base 31 improves the stability and positional accuracy of the second mounting base 31. A third drive assembly 24 drives the first mounting base 21 to move along the first direction Z, reducing the assembly difficulty of the top sealing module 2 and the base 1. A second buffer member 25 is placed between the first mounting base 21 and the gas supply member 22, buffering the movement of the gas supply member 22 along the first direction Z, reducing the risk of damage when the gas supply member 22 comes into contact with the product under test 20. A third buffer member 26 is placed between the first mounting base 21 and the first sealing member 23, buffering the movement of the first sealing member 23 along the first direction Z, reducing the risk of damage when the first sealing member 23 comes into contact with the product under test 20.

[0077] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0078] The above examples illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely illustrative and are intended to aid in understanding the technical solutions and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A helium detection device (10), characterized in that, include: Base (1); A top sealing module (2) is disposed opposite to the base (1), and the top sealing module (2) can be close to or away from the base (1); the top sealing module (2) has an air supply channel (221), one end of the air supply channel (221) has an air outlet (2211), and the air outlet (2211) is disposed toward the base (1); the top sealing module (2) includes a first sealing member (23), the first sealing member (23) extends toward the base (1); the top sealing module (2) includes a first mounting base (21), one end of the first sealing member (23) away from the base (1) is connected to the first mounting base (21); the air supply channel (221) is disposed on the first mounting base (21), and the connection position of the first sealing member (23) and the first mounting base (21) is fixed relative to the air supply channel (221) on the first mounting base (21).

2. The helium detection device (10) as described in claim 1, characterized in that, The top sealing module (2) includes a first mounting base (21) and an air supply component (22). The air supply component (22) and the first sealing component (23) are both mounted on the first mounting base (21). The air supply component (22) extends toward the base (1). At least a portion of the air supply channel (221) is located inside the air supply component (22). The air outlet (2211) is located at one end of the air supply component (22) toward the base (1).

3. The helium detection device (10) as described in claim 2, characterized in that, The first mounting base (21) is provided with a first mounting hole (212), and the gas supply component (22) passes through the first mounting hole (212). The diameter of the part of the gas supply component (22) located in the first mounting hole (212) is smaller than the diameter of the first mounting hole (212). The first sealing component (23) is installed on the first mounting base (21), and the installation position of the first sealing component (23) on the first mounting base (21) is fixed with the position of the first mounting hole (212).

4. The helium detection device (10) as described in claim 3, characterized in that, The gas delivery component (22) includes a first pipe section (222) and a second pipe section (223). The first pipe section (222) is connected to the second pipe section (223). The gas delivery channel (221) passes through the first pipe section (222) and the second pipe section (223). The first pipe section (222) passes through the first mounting hole (212). The second pipe section (223) is located on the side of the first mounting base (21) facing the base (1). The outer diameter of the first pipe section (222) is smaller than the diameter of the first mounting hole (212). The outer diameter of the second pipe section (223) is larger than the diameter of the first mounting hole (212).

5. The helium detection device (10) as described in claim 4, characterized in that, The second pipe section (223) includes a main body (2231) and a tapered part (2232). One end of the main body (2231) is connected to the first pipe section (222), and the other end of the main body (2231) is connected to the tapered part (2232). The outer diameter of the tapered part (2232) gradually decreases from the main body (2231) toward the air outlet (2211).

6. The helium detection device (10) as described in any one of claims 1-5, characterized in that, The helium detection device (10) includes a side sealing module (3), which is located on the side of the base (1). The side sealing module (3) includes a second mounting base (31) and a second sealing member (32). The second sealing member (32) is mounted on the second mounting base (31). The first sealing member (23) extends along a first direction (Z), and the second sealing member (32) extends along a second direction (X). The second direction (X) intersects with the first direction (Z).

7. The helium detection device (10) as described in claim 6, characterized in that, The helium detection device (10) includes a first locking accessory (4), which is locked to the base (1); the second mounting base (31) is provided with a second mounting hole (311), which passes through the second mounting base (31) along the second direction (X), and the first locking accessory (4) can pass through the second mounting hole (311). The base (1) includes a base plate (11) and a first positioning block (12). The first positioning block (12) is installed on the side of the base plate (11) facing the top sealing module (2). The first positioning block (12) and the second mounting seat (31) are arranged opposite to each other along the second direction (X).

8. The helium detection device (10) as described in claim 7, characterized in that, The base (1) includes a second positioning block (13) and a third positioning block (14). The second positioning block (13) and the third positioning block (14) are both installed on the side of the base plate (11) facing the top sealing module (2). The second positioning block (13) and the third positioning block (14) are arranged opposite each other along the third direction (Y). The first direction (Z), the second direction (X) and the third direction (Y) are perpendicular to each other. At least one of the second positioning block (13) and the third positioning block (14) is provided with a locking hole (15) that cooperates with the first locking accessory (4); the first mounting base (21) is provided with a third mounting hole (211), the third mounting hole (211) extends along a first direction (Z), the first direction (Z) is parallel to the extension direction of the first sealing member (23), the helium detection device (10) includes a second locking accessory (7), the second locking accessory (7) is locked and connected to the base (1); the second locking accessory (7) can pass through the third mounting hole (211).

9. The helium detection device (10) as described in claim 8, characterized in that, The second lock accessory (7) includes: A head (71) and a rod (72), wherein the head (71) is disposed at one end of the rod (72), and the rod (72) is locked to the base (1); A gasket (73) is fitted onto the rod portion (72) along the first direction (Z). The head (71) is located on the side of the first mounting base (21) away from the base (1). The gasket (73) is located between the head (71) and the first mounting base (21). The gasket (73) has a notch (731) for the rod portion (72) to be inserted into. The diameter of the head (71) is smaller than the diameter of the third mounting hole (211). The outer diameter of the gasket (73) is larger than the diameter of the third mounting hole (211).

10. The helium detection device (10) as described in claim 6, characterized in that, The second sealing element (32) is movably mounted on the second mounting base (31) along the second direction (X). The side sealing module (3) includes a first buffer element (33), which is disposed between the second mounting base (31) and the second sealing element (32).

11. The helium detection device (10) as described in claim 6, characterized in that, The helium detection device (10) includes a first drive assembly (34), and a second mounting base (31) is connected to the output end of the first drive assembly (34). The first drive assembly (34) is configured to drive the second mounting base (31) to move along the second direction (X). And / or, the helium detection device (10) includes abutment (5) and a second drive assembly (6), thebutment (5) is connected to the output end of the second drive assembly (6), thebutment (5) is disposed opposite to the second mounting base (31) along the second direction (X), and the second drive assembly (6) can drive the abutment (5) to move along the second direction (X); And / or, the top sealing module (2) includes a third drive assembly (24), the top sealing module (2) is connected to the output end of the third drive assembly (24), the third drive assembly (24) is capable of driving the top sealing module (2) to move along a first direction (Z), the first direction (Z) being parallel to the extension direction of the first sealing member (23).

12. An assembly production line (1000), characterized in that, It includes a welding station (200) and a helium detection device (10) as claimed in any one of claims 1-11, the helium detection device (10) being located downstream of the welding station (200).

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