Helium detection mechanism

Abstract

The utility model relates to the technical field of battery detection, in particular to a helium detection mechanism which comprises a bottom plate, a top plate fixedly arranged at the top of the bottom plate and a linear module. The output end of the linear module is connected with a mobile platform; a floating platform is arranged at the top of the moving platform in a lifting floating manner; a lower detection jig is arranged at the top of the floating platform; an upper detection jig matched with the lower detection jig is movably arranged at the bottom of the top plate in a lifting manner; a supporting block is arranged at the bottom of the floating platform; the top of the bottom plate is provided with a supporting column abutting against the supporting block. After the lower detection jig and the upper detection jig are assembled, the floating platform is continuously pushed to move downwards, so that the supporting blocks at the bottom of the floating platform abut against the supporting columns of the bottom plate, and in the pressure maintaining process, the pressure maintaining force is always applied to the bottom plate through the supporting blocks and the bottom plate; and the pressure-maintaining force cannot be conducted between the linear module and the moving platform, so that the service life of the linear module can be effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, specifically to a helium testing mechanism. Background Technology

[0002] In the battery manufacturing industry, helium testing is a crucial process for detecting battery sealing. It involves placing the product in a sealed mold and filling it with helium gas, utilizing helium's high permeability to detect any leaks. Currently, to achieve automated loading, most helium testing equipment employs a linear module-driven lower mold design. The specific workflow is as follows: During the loading phase, the linear module moves the lower mold along a straight track away from the upper mold, providing ample space for manual or robotic arm placement of the battery. After loading is complete, the linear module then drives the lower mold to move directly beneath the upper mold, after which the upper mold moves vertically downwards to close, forming a sealed testing space.

[0003] However, the existing mold-closing structure based on linear modules has significant drawbacks. During the mold-closing process, the large closing force generated by the downward pressure of the upper mold is directly transmitted to the linear module through the lower mold. Since the linear module is mainly designed to bear the weight of the lower mold and the relatively small translational driving force, its mechanical strength is insufficient to withstand the continuous impact loads and pressures during the mold-closing process. Under long-term use, the linear module is prone to wear, deformation, and even breakage, resulting in decreased transmission accuracy and deterioration of equipment operating stability. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a helium detection mechanism.

[0005] The objective of this utility model is achieved through the following technical solution: a helium detection mechanism, comprising a base plate, a top plate fixedly disposed on the top of the base plate, and a linear module disposed between the base plate and the top plate; the output end of the linear module is connected to a mobile platform;

[0006] The top of the mobile platform is equipped with a floating platform that can be raised and lowered; the top of the floating platform is equipped with a lower detection fixture; the bottom of the top plate is equipped with an upper detection fixture that cooperates with the lower detection fixture.

[0007] The bottom of the floating platform is provided with a support block; the top of the base plate is provided with a support column that abuts against the support block.

[0008] The present invention is further configured such that the mobile platform is provided with a guide groove; the bottom of the floating platform is provided with a guide rod; and a sliding sleeve is provided between the guide groove and the guide rod.

[0009] The present invention is further provided with a floating spring between the top of the mobile platform and the bottom of the floating platform.

[0010] The present invention is further configured such that the mobile platform is provided with a limiting hole; the bottom of the floating platform is provided with a limiting rod; the limiting rod passes through the limiting hole and is connected to a limiting ring; the radius of the limiting ring is greater than the radius of the limiting hole; and the radius of the limiting rod is less than the radius of the limiting hole.

[0011] The present invention is further configured such that both ends of the support block are provided with guide slopes.

[0012] The present invention is further configured such that a mold-closing cylinder is provided on the top of the top plate; the output end of the mold-closing cylinder is connected to the upper detection fixture.

[0013] The present invention is further configured such that a confluence block is provided at one end of the floating platform; the confluence block is provided with a first interface; the lower detection fixture is provided with a second interface that cooperates with the first interface; and the bottom of the confluence block is provided with a confluence port that communicates with the first interface.

[0014] The present invention is further configured such that the base plate is connected to a detection seat; the detection seat is movably connected to a connecting seat; the connecting seat is provided with a transfer platform; the top of the transfer platform is provided with a first air port that cooperates with the confluence port; and the side of the transfer platform is provided with a second air port that communicates with the first air port.

[0015] The present invention is further configured such that a detection cylinder is provided at the bottom of the detection seat; the output end of the detection cylinder is connected to the connecting seat; and a buffer spring is provided between the connecting seat and the transfer platform.

[0016] The present invention is further configured such that a sealing ring is provided around the first air port on the top of the transfer platform.

[0017] The beneficial effects of this utility model are as follows: After the lower and upper inspection fixtures are closed, the floating platform continues to move downward, so that the support block at the bottom of the floating platform abuts against the support column of the base plate. During the pressure holding process, the pressure holding pressure is always applied and transmitted to the base plate through the support block and the base plate, and will not be transmitted between the linear module and the moving platform, thereby effectively ensuring the life of the linear module. Attached Figure Description

[0018] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0021] Figure 3 This is a cross-sectional view of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the mobile platform and the floating platform of this utility model in combination;

[0023] Figure 5 This is a structural schematic diagram from another perspective showing the cooperation between the mobile platform and the floating platform of this utility model;

[0024] Figure 6 This is a cross-sectional view of the mobile platform and floating platform of this utility model in combination;

[0025] Figure 7 This is a cross-sectional view from another perspective of the cooperation between the mobile platform and the floating platform of this utility model;

[0026] Figure 8 yes Figure 1 A magnified view of part A in the middle;

[0027] The components are as follows: 1. Base plate; 11. Support column; 2. Top plate; 21. Upper inspection fixture; 22. Mold closing cylinder; 3. Linear module; 4. Moving platform; 41. Sliding sleeve; 42. Floating spring; 43. Limiting hole; 5. Floating platform; 51. Lower inspection fixture; 52. Second interface; 53. Support block; 54. Guide slope; 55. Guide rod; 56. Limiting rod; 57. Limiting ring; 6. Manifold block; 61. First interface; 62. Manifold port; 7. Inspection seat; 71. Connecting seat; 72. Inspection cylinder; 73. Buffer spring; 8. Transfer platform; 81. First air port; 82. Second air port; 83. Sealing ring. Detailed Implementation

[0028] The present invention will be further described in conjunction with the following embodiments.

[0029] Depend on Figures 1 to 8 As can be seen, the helium detection mechanism described in this embodiment includes a base plate 1, a top plate 2 fixedly disposed on the top of the base plate 1, and a linear module 3 disposed between the base plate 1 and the top plate 2; the output end of the linear module 3 is connected to a moving platform 4;

[0030] The top of the mobile platform 4 is equipped with a floating platform 5 that is raised and lowered; the top of the floating platform 5 is equipped with a lower detection fixture 51; the bottom of the top plate 2 is equipped with an upper detection fixture 21 that cooperates with the lower detection fixture 51.

[0031] The bottom of the floating platform 5 is provided with a support block 53; the top of the base plate 1 is provided with a support column 11 that abuts against the support block 53.

[0032] Specifically, in this embodiment, the helium detection mechanism moves the moving platform 4 via the linear module 3 during loading, moving the moving platform 4 away from the upper detection fixture 21, making it easier for the user to place the product in the lower detection fixture 51 of the floating platform 5. After loading, the moving platform 4 is moved by the linear module 3, moving the lower detection fixture 51 directly below the upper detection fixture 21. Then, the lower detection fixture 51 is driven to move downward. After the lower detection fixture 51 and the upper detection fixture 21 are closed, the floating platform 5 continues to move downward, so that the support block 53 at the bottom of the floating platform 5 abuts against the support column 11 of the base plate 1. During the pressure holding process, the pressure holding is always applied and transmitted to the base plate 1 through the support block 53 and the base plate 1, and will not be transmitted between the linear module 3 and the moving platform 4, thereby effectively ensuring the life of the linear module 3.

[0033] In this embodiment, a helium detection mechanism is provided, wherein the mobile platform 4 is provided with a guide groove; the bottom of the floating platform 5 is provided with a guide rod 55; and a sliding sleeve 41 is provided between the guide groove and the guide rod 55. This arrangement enables the floating platform 5 to perform stable lifting and lowering movements.

[0034] In this embodiment of the helium detection mechanism, a floating spring 42 is provided between the top of the moving platform 4 and the bottom of the floating platform 5. This arrangement allows the floating platform 5 to remain on top of the moving platform 4 and to enable the moving platform 4 to move normally.

[0035] In this embodiment, a helium detection mechanism is provided, wherein the moving platform 4 has a through-hole 43; the bottom of the floating platform 5 has a limiting rod 56; the limiting rod 56 passes through the limiting hole 43 and is connected to a limiting ring 57; the radius of the limiting ring 57 is larger than the radius of the limiting hole 43; and the radius of the limiting rod 56 is smaller than the radius of the limiting hole 43. This configuration effectively limits the movement of the floating platform 5.

[0036] In this embodiment of the helium detection mechanism, both ends of the support block 53 are provided with guide ramps 54. This arrangement allows the support block 53 to move to the bottom of the support column 11.

[0037] In this embodiment, a helium detection mechanism is provided with a mold-closing cylinder 22 on the top plate 2; the output end of the mold-closing cylinder 22 is connected to the upper detection fixture 21. This arrangement provides sufficient pressure to allow the lower detection fixture 51 and the upper detection fixture 21 to close.

[0038] In this embodiment, a helium detection mechanism is described, wherein a manifold block 6 is provided at one end of a floating platform 5; the manifold block 6 is provided with a first interface 61; the lower detection fixture 51 is provided with a second interface 52 that cooperates with the first interface 61; and the bottom of the manifold block 6 is provided with a manifold port 62 that communicates with the first interface 61. Specifically, the top of the floating platform 5 is provided with multiple lower detection fixtures 51, each of which is provided with a second interface 52. At the same time, the manifold block 6 is provided with multiple first interfaces 61. Each first interface 61 is connected to the second interface 52 of each detection fixture through a gas pipe, which facilitates the introduction of helium after the lower detection fixture 51 and the upper detection fixture 21 are closed.

[0039] In this embodiment, a helium testing mechanism is described, wherein a base plate 1 is connected to a testing seat 7; the testing seat 7 is movably connected to a connecting seat 71; the connecting seat 71 is provided with a transfer platform 8; the top of the transfer platform 8 is provided with a first gas port 81 that cooperates with a manifold 62; and the side of the transfer platform 8 is provided with a second gas port 82 that communicates with the first gas port 81. Specifically, after the lower testing fixture 51 and the upper testing fixture 21 are closed, the testing cylinder 72 drives the connecting seat 71 to move upward, so that the top of the transfer platform 8 is pressed against the bottom of the manifold 6, and the first gas port 81 is connected to the manifold 62. At this time, helium gas is introduced from the second gas port 82. The helium gas passes through the first gas port 81, the manifold 62, the first interface 61, and the second interface 52 in sequence before entering the lower testing fixture 51 and the upper testing fixture 21, thereby performing helium testing on the product.

[0040] In this embodiment, a helium detection mechanism is provided, wherein a detection cylinder 72 is provided at the bottom of the detection seat 7; the output end of the detection cylinder 72 is connected to the connecting seat 71; and a buffer spring 73 is provided between the connecting seat 71 and the transfer platform 8. The above arrangement can play a buffering role.

[0041] In the helium detection mechanism described in this embodiment, a sealing ring 83 is provided around the first gas port 81 on the top of the transfer platform 8. This arrangement ensures the airtightness between the top of the transfer platform 8 and the bottom of the manifold 6.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A helium detection mechanism, characterized by: It includes a base plate (1), a top plate (2) fixedly disposed on the top of the base plate (1), and a linear module (3) disposed between the base plate (1) and the top plate (2); the output end of the linear module (3) is connected to a moving platform (4); The top of the mobile platform (4) is equipped with a floating platform (5); the top of the floating platform (5) is equipped with a lower detection fixture (51); the bottom of the top plate (2) is equipped with an upper detection fixture (21) that cooperates with the lower detection fixture (51). The bottom of the floating platform (5) is provided with a support block (53); the top of the base plate (1) is provided with a support column (11) that abuts against the support block (53).

2. A helium leak detector according to claim 1, wherein: The mobile platform (4) is provided with a guide groove; the bottom of the floating platform (5) is provided with a guide rod (55); a sliding sleeve (41) is provided between the guide groove and the guide rod (55).

3. A helium leak detector according to claim 1, wherein: A floating spring (42) is provided between the top of the mobile platform (4) and the bottom of the floating platform (5).

4. A helium detector according to claim 1, wherein: The mobile platform (4) is provided with a limiting hole (43); the bottom of the floating platform (5) is provided with a limiting rod (56); the limiting rod (56) passes through the limiting hole (43) and is connected to a limiting ring (57); the radius of the limiting ring (57) is greater than the radius of the limiting hole (43); the radius of the limiting rod (56) is less than the radius of the limiting hole (43).

5. A helium leak detector according to claim 1, wherein: Both ends of the support block (53) are provided with guide slopes (54).

6. A helium leak detector according to claim 1, wherein: The top of the top plate (2) is provided with a mold closing cylinder (22); the output end of the mold closing cylinder (22) is connected to the upper detection fixture (21).

7. A helium leak detector according to claim 1, wherein: One end of the floating platform (5) is provided with a busbar (6); the busbar (6) is provided with a first interface (61); the lower detection fixture (51) is provided with a second interface (52) that cooperates with the first interface (61); the bottom of the busbar (6) is provided with a busbar port (62) that communicates with the first interface (61).

8. A helium leak detector according to claim 7, wherein: The base plate (1) is connected to a detection seat (7); the detection seat (7) is movably connected to a connecting seat (71); the connecting seat (71) is provided with a transfer platform (8); the top of the transfer platform (8) is provided with a first air port (81) that cooperates with the manifold (62); the side of the transfer platform (8) is provided with a second air port (82) that communicates with the first air port (81).

9. A helium leak detector according to claim 8, wherein: The bottom of the detection seat (7) is provided with a detection cylinder (72); the output end of the detection cylinder (72) is connected to the connecting seat (71); a buffer spring (73) is provided between the connecting seat (71) and the transfer platform (8).

10. A helium leak detector according to claim 8, wherein: The top of the transfer platform (8) is provided with a sealing ring (83) around the first air port (81).

Images