Sealing detection device for lithium battery processing

Abstract

The invention provides a sealing detection device for lithium battery processing, and relates to the technical field of sealing detection, the sealing detection device comprises a conveying table, the outlet end of the conveying table is provided with a supporting frame, the surface of the supporting frame is provided with five buckle frames at equal intervals, a plurality of aluminum shell batteries are placed in the buckle frames at equal intervals, and the sides, facing the conveying table, of the two ends of the buckle frames are provided with openings; a plurality of aluminum shell batteries are evenly stacked on the supporting frame, the buckling frame is arranged on the top of the supporting frame, a transmission assembly is arranged at the position, corresponding to each aluminum shell battery, of the top of the buckling frame, each transmission assembly comprises a penetrating opening, and a penetrating opening is formed in the middle of the top of the buckling frame. The batteries are separately placed on the bottom plate at equal intervals, are uniformly put into water to be soaked and are taken out, and the displacement change of the bottom plate at the bottom is observed, so that whether the batteries bulge and deform or not is judged, the detection is more accurate, the efficiency is higher, and the sealing performance of a plurality of batteries can be detected at one time.

Description

Technical Field

[0001] The present invention relates to the technical field of seal detection, and particularly to a seal detection device for lithium battery processing. Background Art

[0002] Lithium batteries are a very important type of battery and are widely used in fields such as mobile devices, electric vehicles, and energy storage systems. The seal of a lithium battery is one of the important guarantees for its safety and reliability. The seal refers to the isolation performance between the outer shell of the lithium battery and the inside of the battery, and its main function is to prevent the leakage of the electrolyte inside the battery and the entry of external impurities, thereby ensuring the normal operation of the battery.

[0003] Among them, the seal detection of lithium batteries is carried out during the processing. The seal detection of lithium batteries is usually carried out after the battery packaging is completed to ensure the reliability and safety of the battery in various environments. The detection methods include airtightness testing, soaking detection, gas detection, leakage detection, and appearance detection, etc. Soaking detection: The battery is placed in water, and whether bubbles are generated is observed to detect the sealing performance. The main principle of this part is that if the battery has poor sealing performance, water vapor will enter the battery interior, and water will react with the electrolyte and the negative electrode inside the battery, continuously generating gas, resulting in the swelling of the case of the square aluminum shell battery and the bulging of the square soft-pack battery, so as to achieve the detection of the battery seal. However, the existing detection methods mostly involve putting a single battery into water for soaking detection, which is relatively slow in detection efficiency during production and processing, and it is necessary to check one by one whether there is a bulging or deformation situation, which is time-consuming and laborious. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a seal detection device for lithium battery processing to solve the problems raised in the above background art. The structure of the present invention is novel. Multiple aluminum shell batteries are evenly stacked on the support frame, and the batteries are limited by the buckling frame, the top plate and the side plate, and each battery is placed separately on the bottom plate at the same distance, and then uniformly put into water for soaking. After taking out, by observing the displacement change of the bottom plate, it is more accurate and efficient to determine whether the battery has a bulging or deformation situation, and the sealing performance of multiple batteries can be detected at one time.

[0005] To achieve the above object, the present invention is realized by the following technical solutions: A sealing detection device for lithium battery processing, including a conveying table, a supporting frame is provided at the outlet end of the conveying table, five buckling frames are equidistantly arranged on the surface of the supporting frame, and a plurality of aluminum shell batteries are equidistantly placed inside the buckling frames. Openings are provided on both ends of the buckling frame facing the conveying table, and transmission components are provided at positions corresponding to each aluminum shell battery on the top of the buckling frame. The transmission component includes an insertion opening. An insertion opening is formed at the middle position of the top of the buckling frame. A top plate is provided at the position corresponding to each aluminum shell battery in the insertion opening, and side plates are fixed to the bottoms on both sides of the top plate. The top plate and the side plates are respectively in contact with the top and both ends of the aluminum shell battery. A bottom plate is provided at the bottom of the supporting frame corresponding to each aluminum shell battery, and the aluminum shell battery is placed on the bottom plate. A water tank is provided at the bottom of the supporting frame. A pressure detection gauge is installed on the outer surface of the water tank, and a cover plate is fixed to the top of the supporting frame. The supporting frame can enter the water tank together with the cover plate. A first electric push rod is fixed at the bottom of the conveying table corresponding to each buckling frame, and a push plate is fixed to the extending end of the first electric push rod. The push plate can penetrate into the interior of the buckling frame.

[0006] Further, an inclined panel is fixed at the outlet end of the conveying table, and the bottom of the inclined panel corresponds to the inlet end of the supporting frame. Partition plates are equidistantly fixed on the surfaces of the conveying table and the inclined panel. The distance between adjacent partition plates is the same as the distance between the buckling frames, and the distance between the partition plates and the buckling frames both match the width of the aluminum shell battery.

[0007] Further, through holes are formed on the surface of the inclined panel corresponding to each group of first electric push rods, and the extending end of the first electric push rod and the push plate can extend out from the through holes and penetrate into the interior of the buckling frame.

[0008] Further, vertical grooves are formed on both sides of the supporting frame away from the conveying table, and sliders are slidably connected inside the vertical grooves. A first spring is fixed between the top of the slider and the inner wall of the vertical groove. A connecting plate is fixed on the outer surface of the slider. A cross plate is fixed to the tops of the two connecting plates, and the cross plate is fixedly connected to the top of each buckling frame.

[0009] Further, a convex plate is fixed on the outer side of the cross plate, a convex strip is fixed on the inner wall of the water tank corresponding to the convex plate, and the top of the convex strip can be in pressing contact with the bottom of the convex plate.

[0010] Further, a second electric push rod is fixed on one side of the top of the push plate, and a moving notch is formed on the top surface of the buckling frame corresponding to the second electric push rod. The second electric push rod can move along the notch.

[0011] Further, the transmission assembly further includes a mounting seat. The mounting seat is fixed to the side of each top plate, and a first gear is rotatably connected to the side of the mounting seat facing the moving gap through a bearing. A first toothed plate is installed at a position corresponding to the first gear inside the moving gap, and the first toothed plate is meshed with the first gear. Sliding grooves are formed in the inner walls on both sides of the moving gap along the moving path of the first toothed plate, and the first toothed plate slides horizontally along the inside of the sliding grooves.

[0012] Further, a second gear is rotatably installed on the other side of the mounting seat through a bearing, and the second gear is meshed with the first gear. A second toothed plate is fixed to the bottom of the top plate, and the second gear is meshed with the second toothed plate.

[0013] Further, the supporting frame is provided with vacancy grooves corresponding to the positions of each aluminum shell battery, and the bottom plate is filled inside the vacancy grooves. Spring telescopic plates are fixed to the inner walls on both sides of the vacancy grooves, and the extended ends of the spring telescopic plates are fixed to the bottom plate.

[0014] Further, cylinders are fixed to the outer walls on both sides of the water tank, and the extended ends of the cylinders are fixed to the cover plate. Fixing plates are fixed to both sides of the supporting frame, and the tops of the fixing plates are fixed to the cover plate. There is a certain distance between the buckling frame and the cover plate.

[0015] Advantages of the present invention:

[0016] 1. When the present invention receives a new battery, the cylinder raises the position of the supporting frame to be flush with the bottom of the inclined panel, which is convenient for the first electric push rod to push the aluminum shell battery into the buckling frame. When detecting the sealing performance after soaking, the cylinder raises the supporting frame to the highest position, and then the position of the bottom plate is observed manually. If the bottom plate does not remain flat with the bottom of the supporting frame, it indicates that the aluminum shell battery above has deformed, that is, it is a product with poor sealing performance. The battery is directly taken out by pulling down the bottom plate, and the batteries in the area are sent out through the front end of the supporting frame, so as to more conveniently check the sealing performance detection result of the aluminum shell battery.

[0017] 2. Since the buckling frame is slidably connected to the supporting frame through a cross plate in the present invention, after the detection is completed, the buckling frame can be manually pulled up to release the restriction on a row of batteries. Then, the aluminum shell battery is pushed out by the first electric push rod. During the return process, the direction of the buckling frame can be adjusted first, and then the first toothed plate is driven to move in a certain direction by the second electric push rod, so as to raise the top plate and the side plate, which is convenient for the feeding of the next group of batteries. When the buckling frame is sent into the water tank, the convex plate on the outside of the cross plate will be in extrusion contact with the convex strip on the inner wall of the water tank, so that the convex strip will push the buckling frame upward, which is convenient for the battery to be fully immersed in water.

[0018] 3. When the present invention feeds each battery inside the buckle frame through the conveying table and the inclined panel, the extending end of the first electric push rod drives the push plate to move, arranging the aluminum shell batteries in sequence from the farthest to the nearest according to their positions. And when the push plate moves to the position before the current position where the aluminum shell battery needs to be placed, the extending end of the second electric push rod extends out, squeezes and contacts the first toothed plate at the corresponding position, drives the first toothed plate to slide along the moving notch and the chute, and meshes with the first gear. The second gear rotates synchronously and meshes with the second toothed plate, driving the top plate and the side plates to descend, inserting into the top and both sides of the aluminum shell battery, limiting it, and keeping a certain expansion space between each group of batteries.

[0019] 4. Through the arrangement of the partition plates on the conveying table and the inclined panel of the present invention, it is convenient to feed the aluminum shell batteries into the buckle frame under the pushing action of the first electric push rod and the push plate, detect multiple aluminum shell batteries simultaneously, and limit them individually to prevent the movement of the aluminum shell batteries. The distance between the partition plates and the internal space size of the buckle frame can be selected to be adapted to the size of the aluminum shell batteries for use.

[0020] 5. Compared with the prior art, the present invention evenly stacks multiple aluminum shell batteries on the supporting frame, limits the batteries through the buckle frame, the top plate and the side plates, places each battery separately on the bottom plate at the same distance, and uniformly puts them into water for soaking. After taking them out, by observing the displacement change of the bottom bottom plate, it is more accurate and efficient to determine whether the battery has bulging deformation, and the sealing performance of multiple batteries can be detected at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a sealing detection device for lithium battery processing according to the present invention;

[0022] Figure 2 It is a schematic diagram of the connection between the supporting frame and the conveying table of a sealing detection device for lithium battery processing according to the present invention;

[0023] Figure 3 It is a schematic diagram of the installation position of the first electric push rod of a sealing detection device for lithium battery processing according to the present invention;

[0024] Figure 4 It is a schematic diagram of the outer end structure of the supporting frame of a sealing detection device for lithium battery processing according to the present invention;

[0025] Figure 5 It is a schematic diagram of the transmission component structure of a sealing detection device for lithium battery processing according to the present invention;

[0026] Figure 6 It is a schematic diagram of the installation positions of the top plate and the side plates of a sealing detection device for lithium battery processing according to the present invention;

[0027] Figure 7Schematic diagram of the internal structure of the water tank of a sealing detection device for lithium battery processing according to the present invention;

[0028] Figure 8 Schematic diagram of the bottom structure of the support frame of a sealing detection device for lithium battery processing according to the present invention.

[0029] In the figure: 1, conveying table; 11, partition board; 12, inclined panel; 13, through hole; 2, water tank; 21, pressure detection meter; 22, cover plate; 23, cylinder; 24, fixed plate; 25, convex strip; 3, support frame; 31, buckle frame; 32, bottom plate; 33, vertical groove; 34, first spring; 35, slider; 36, connecting plate; 37, cross plate; 38, convex plate; 39, moving notch; 310, vacant groove; 311, spring telescopic plate; 4, transmission assembly; 41, mounting seat; 42, first gear; 43, first toothed plate; 44, second gear; 45, second toothed plate; 46, top plate; 47, side plate; 48, insertion opening; 49, chute; 5, first electric push rod; 51, push plate; 52, second electric push rod; 6, aluminum shell battery. Detailed implementation manners

[0030] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0031] Please refer to Figures 1 to 8, the present invention provides a technical solution: a sealing detection device for lithium battery processing, including a conveying table 1. At the outlet end of the conveying table 1, there is a supporting frame 3. On the surface of the supporting frame 3, five buckling frames 31 are equidistantly arranged. And inside the buckling frames 31, a plurality of aluminum shell batteries 6 are equidistantly placed. At both ends of the buckling frame 31, there are openings towards the side of the conveying table 1. And at the position corresponding to each aluminum shell battery 6 on the top of the buckling frame 31, there is a transmission component 4. The transmission component 4 includes an insertion opening 48. An insertion opening 48 is opened at the middle position on the top of the buckling frame 31. At the position corresponding to each aluminum shell battery 6 in the insertion opening 48, there is a top plate 46. And at the bottom of both sides of the top plate 46, there are side plates 47 fixed. The top plate 46 and the side plates 47 are respectively in contact with the top and both ends of the aluminum shell battery 6. At the bottom corresponding to each aluminum shell battery 6 of the supporting frame 3, there is a bottom plate 32. And the aluminum shell battery 6 is placed on the bottom plate 32. At the bottom of the supporting frame 3, there is a water tank 2. On the outer surface of the water tank 2, a pressure detection meter 21 is installed. And on the top of the supporting frame 3, a cover plate 22 is fixed. The supporting frame 3 can enter the inside of the water tank 2 together with the cover plate 22. At the bottom of the conveying table 1, corresponding to each buckling frame 31, a first electric push rod 5 is fixed. And at the extending end of the first electric push rod 5, a push plate 51 is fixed. The push plate 51 can penetrate into the inside of the buckling frame 31. When using the device, the aluminum shell batteries 6 to be detected are placed at each conveying position of the conveying table 1. Through the guidance of the inclined panel 12 and the push of the push plate 51, they are sent into the inside of the buckling frame 31. And through the top plate 46 and the side plates 47 of the transmission component 4, the aluminum shell batteries 6 are limited in position, keeping the same distance between the batteries. Then the supporting frame 3 is sent into the inside of the water tank 2. After the aluminum shell batteries 6 are soaked for a period of time, the tightness of the aluminum shell batteries 6 is checked. The batteries with better tightness are sent out from the other side of the supporting frame 3.

[0032] In this embodiment, at the outlet end of the conveying table 1, an inclined panel 12 is fixed. And the bottom of the inclined panel 12 corresponds to the inlet end of the supporting frame 3. On the surfaces of the conveying table 1 and the inclined panel 12, partition plates 11 are equidistantly fixed. The distance between adjacent partition plates 11 is the same as the distance between the buckling frames 31. And the distance between the partition plates 11 and the buckling frames 31 both match the width of the aluminum shell battery 6. On the surface of the inclined panel 12, at the position corresponding to each group of first electric push rods 5, through holes 13 are opened. And the extending end of the first electric push rod 5 and the push plate 51 can extend out from the through holes 13 and penetrate into the inside of the buckling frame 31. Through the arrangement of the partition plates 11 on the conveying table 1 and the inclined panel 12, it is convenient to send the aluminum shell batteries 6 into the inside of the buckling frame 31 under the push of the first electric push rod 5 and the push plate 51. Multiple aluminum shell batteries 6 are detected simultaneously, and they are individually limited in position to prevent the movement of the aluminum shell batteries 6. The distance between the partition plates 11 and the internal space size of the buckling frame 31 can be selected to be adapted to the size of the aluminum shell battery 6 for use.

[0033] In this embodiment, a second electric push rod 52 is fixed to one side of the top of the push plate 51, and a moving notch 39 is formed on the top surface of the buckle frame 31 corresponding to the second electric push rod 52. The second electric push rod 52 can move along the notch. The transmission assembly 4 further includes a mounting seat 41. The mounting seat 41 is fixed to the side of each top plate 46 where the buckle frame 31 is located. A first gear 42 is rotatably connected to one side of the mounting seat 41 facing the moving notch 39 through a bearing. A first tooth plate 43 is installed at a position corresponding to the first gear 42 inside the moving notch 39, and the first tooth plate 43 is meshed with the first gear 42. Chutes 49 are formed on both inner walls of the moving notch 39 along the moving path of the first tooth plate 43, and the first tooth plate 43 slides horizontally along the inside of the chutes 49. A second gear 44 is rotatably installed on the other side of the mounting seat 41 through a bearing, and the second gear 44 is meshed with the first gear 42. A second tooth plate 45 is fixed to the bottom of the top plate 46, and the second gear 44 is meshed with the second tooth plate 45. At the initial stage, the positions of each top plate 46 and side plate 47 in the buckle frame 31 are located at the top of the insertion opening 48. Subsequently, when the batteries are sent into each buckle frame 31 by the conveying table 1 and the inclined panel 12, the extended end of the first electric push rod 5 drives the push plate 51 to move, arranging the aluminum shell batteries 6 in order from the farthest to the nearest according to the positions. And when the push plate 51 moves to the position before the current position where the aluminum shell battery 6 needs to be placed, the extended end of the second electric push rod 52 extends out and squeezes and contacts the corresponding first tooth plate 43, driving the first tooth plate 43 to slide along the moving notch 39 and the chute 49 and mesh with the first gear 42. The second gear 44 rotates synchronously and meshes with the second tooth plate 45, driving the top plate 46 and the side plate 47 to descend and be inserted into the top and both sides of the aluminum shell battery 6 to limit it, and maintaining a certain expansion space between each group of batteries.

[0034] In this embodiment, the supporting frame 3 is provided with vacant slots 310 corresponding to the positions of each aluminum shell battery 6, and the bottom plate 32 is filled inside the vacant slots 310. Spring telescopic plates 311 are fixed to the inner walls on both sides of the vacant slots 310, and the extending ends of the spring telescopic plates 311 are fixedly connected to the bottom plate 32. Vertical slots 33 are provided on both sides of the end of the supporting frame 3 away from the conveying table 1, and sliders 35 are slidably connected inside the vertical slots 33. A first spring 34 is fixed between the top of the slider 35 and the inner wall of the vertical slot 33. A connecting plate 36 is fixed to the outer surface of the slider 35. A cross plate 37 is fixed to the tops of the two connecting plates 36, and the cross plate 37 is fixedly connected to the top of each buckling frame 31. A convex plate 38 is fixed to the outside of the cross plate 37. A convex strip 25 is fixed to the inner wall of the water tank 2 corresponding to the position of the convex plate 38, and the top of the convex strip 25 can be in pressing contact with the bottom of the convex plate 38. Cylinders 23 are fixed to the outer walls on both sides of the water tank 2, and the extending ends of the cylinders 23 are fixed to the cover plate 22. Fixing plates 24 are fixed to both sides of the supporting frame 3, and the tops of the fixing plates 24 are fixedly connected to the cover plate 22. There is a certain distance between the buckling frame 31 and the cover plate 22. The supporting frame 3 is connected to the cover plate 22 through the fixing plate 24. During the soaking stage, the cylinder 23 drives the supporting frame 3 to be inserted into the water tank 2, and the cover plate 22 seals and covers the top of the water tank 2. Subsequently, in accordance with the technical method in CN216815925U, air is introduced into the water tank 2 through the air inlet pipe to increase the pressure, so that the lithium battery in the water bears a certain water pressure. When the pointer of the pressure gauge reaches a certain standard, the air valve on the air inlet pipe is closed, and the pressure is maintained for 10 - 30 minutes. Then the air valve on the exhaust pipe is opened to release the pressure. When the pointer of the pressure gauge shows the scale, it means that the pressure release is completed. At this time, the cover plate 22 can be safely opened. When receiving new batteries, the cylinder 23 raises the position of the supporting frame 3 to be flush with the bottom of the inclined panel 12, which is convenient for the first electric push rod 5 to push the aluminum shell battery 6 into the buckling frame 31. When detecting the sealing performance after soaking, the cylinder 23 raises the supporting frame 3 to the highest position, and then the position of the bottom plate 32 is observed manually. If the bottom plate 32 does not remain flat with the bottom of the supporting frame 3, it indicates that the above aluminum shell battery 6 has deformed, and it is a product with poor sealing performance. The battery is directly taken out by pulling down the bottom plate 32. The batteries in the area are sent out through the front end of the supporting frame 3, so as to more conveniently check the sealing performance detection result of the aluminum shell battery 6. Since the buckling frame 31 is slidably connected to the supporting frame 3 through the cross plate 37, after the detection is completed, the buckling frame 31 can be manually pulled up to release the restriction on a row of batteries. Subsequently, the aluminum shell battery 6 is pushed out by the first electric push rod 5. During the return process, the direction of the buckling frame 31 can be adjusted first, and then the first tooth plate 43 is driven to move in the direction by the second electric push rod 52, so as to raise the top plate 46 and the side plate 47, which is convenient for the feeding of the next group of batteries. When the buckling frame 31 is sent into the water tank 2, the convex plate 38 on the outside of the cross plate 37 will be in pressing contact with the convex strip 25 on the inner wall of the water tank 2, so that the convex strip 25 pushes the buckling frame 31 upwards, which is convenient for the battery to be fully soaked in the water.

[0035] When using the device, place the aluminum shell battery 6 to be detected at each conveying position of the conveying table 1. When the aluminum shell battery is sent into each buckling frame 31 by the conveying table 1 and the inclined panel 12, the extending end of the first electric push rod 5 drives the push plate 51 to move, arranging the aluminum shell batteries 6 in order from the farthest to the nearest according to their positions. And when the push plate 51 moves to the position before the current position where the aluminum shell battery 6 needs to be placed, the extending end of the second electric push rod 52 extends out and squeezes and contacts the first toothed plate 43 at the corresponding position, driving the first toothed plate 43 to slide along the moving notch 39 and the sliding groove 49 and mesh with the first gear 42. The second gear 44 rotates synchronously and meshes with the second toothed plate 45, driving the top plate 46 and the side plate 47 to descend, plugging into the top and both sides of the aluminum shell battery 6 to limit it, keeping a certain expansion space between each group of batteries. When detecting the sealing performance after soaking, the air cylinder 23 raises the supporting frame 3 to the highest position, and then observe the position of the bottom plate 32 manually. If the bottom plate 32 does not keep flat with the bottom of the supporting frame 3, it indicates that the aluminum shell battery 6 above has deformed, and it is a product with poor sealing performance. Directly pull out the battery by pulling down the bottom plate 32. The batteries in the area are sent out through the front end of the supporting frame 3, so as to more conveniently check the sealing detection result of the aluminum shell battery 6. Because the buckling frame 31 is slidably connected to the supporting frame 3 through the cross plate 37, after the detection is completed, the buckling frame 31 can be pulled up manually to release the restriction on a row of batteries. Subsequently, the aluminum shell battery 6 is pushed out by the first electric push rod 5. During the return process, the direction of the buckling frame 31 can be adjusted first, and then the first toothed plate 43 is driven to move in the direction by the second electric push rod 52, thereby raising the top plate 46 and the side plate 47 to facilitate the feeding of the next group of batteries. When the buckling frame 31 is sent into the water tank 2, the convex plate 38 on the outside of the cross plate 37 will squeeze and contact the convex strip 25 on the inner wall of the water tank 2, so that the convex strip 25 pushes the buckling frame 31 upward, facilitating the battery to be fully soaked in water.

[0036] The foregoing shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

[0037] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sealing detection device for lithium battery processing, comprising a conveying table (1), characterized in that: A support frame (3) is provided at the outlet end of the conveying table (1). Five buckle frames (31) are equidistantly arranged on the surface of the support frame (3), and a plurality of aluminum shell batteries (6) are equidistantly placed inside the buckle frames (31). Openings are provided on both ends of the buckle frames (31) facing one side of the conveying table (1), and a transmission assembly (4) is provided at the position corresponding to each aluminum shell battery (6) on the top of the buckle frames (31). The transmission assembly (4) includes an insertion opening (48). An insertion opening (48) is formed at the middle position on the top of the buckle frame (31). A top plate (46) is provided at the position corresponding to each aluminum shell battery (6) in the insertion opening (48), and side plates (47) are fixed to the bottoms on both sides of the top plate (46). The top plate (46) and the side plates (47) are respectively in contact with the top and both ends of the aluminum shell battery (6). A bottom plate (32) is provided at the bottom of the support frame (3) corresponding to each aluminum shell battery (6), and the aluminum shell battery (6) is placed on the bottom plate (32). A water tank (2) is provided at the bottom of the support frame (3). A pressure detection gauge (21) is installed on the outer surface of the water tank (2), and a cover plate (22) is fixed to the top of the support frame (3). The support frame (3) can enter the inside of the water tank (2) together with the cover plate (22). A first electric push rod (5) is fixed at the bottom of the conveying table (1) corresponding to each buckle frame (31), and a push plate (51) is fixed to the extending end of the first electric push rod (5). The push plate (51) can penetrate into the inside of the buckle frame (31).

2. The hermeticity detection device for lithium battery processing according to claim 1, wherein: An inclined panel (12) is fixed at the outlet end of the conveying table (1), and the bottom of the inclined panel (12) corresponds to the inlet end of the support frame (3). Partition plates (11) are equidistantly fixed on the surfaces of the conveying table (1) and the inclined panel (12). The distance between adjacent partition plates (11) is the same as the distance between the buckle frames (31), and the distance between the partition plates (11) and the buckle frames (31) both match the width of the aluminum shell battery (6).

3. The hermeticity detection device for lithium battery processing according to claim 2, wherein: Through holes (13) are formed on the surface of the inclined panel (12) corresponding to each group of first electric push rods (5), and the extending end of the first electric push rod (5) and the push plate (51) can extend out from the through holes (13) and penetrate into the inside of the buckle frame (31).

4. A sealing detection device for lithium battery processing according to claim 1, characterized in that: Vertical grooves (33) are formed on both sides at the end of the support frame (3) away from the conveying table (1), and sliders (35) are slidably connected inside the vertical grooves (33). A first spring (34) is fixed between the top of the slider (35) and the inner wall of the vertical groove (33). A connecting plate (36) is fixed on the outer surface of the slider (35). Cross plates (37) are fixed to the tops of the two connecting plates (36), and the cross plates (37) are fixedly connected to the top of each buckle frame (31).

5. A sealing detection device for lithium battery processing according to claim 4, characterized in that: A convex plate (38) is fixed to the outside of the cross plate (37). A convex strip (25) is fixed to the inner wall of the water tank (2) corresponding to the convex plate (38), and the top of the convex strip (25) can be in pressing contact with the bottom of the convex plate (38).

6. A sealing detection device for lithium battery processing according to claim 1, characterized in that: On one side of the top of the push plate (51), a second electric push rod (52) is fixed, and a moving notch (39) is formed on the top surface of the buckle frame (31) corresponding to the second electric push rod (52), and the second electric push rod (52) can move along the notch.

7. A sealing detection device for lithium battery processing according to claim 6, characterized in that: The transmission component (4) further includes a mounting seat (41). The mounting seat (41) is fixed on the side of each top plate (46) where the buckle frame (31) is located. On one side of the mounting seat (41) facing the moving notch (39), a first gear (42) is rotatably connected through a bearing. A first toothed plate (43) is installed at a position corresponding to the first gear (42) inside the moving notch (39), and the first toothed plate (43) is meshed with the first gear (42). On both inner walls of the moving notch (39) corresponding to the moving path of the first toothed plate (43), sliding grooves (49) are formed, and the first toothed plate (43) slides horizontally along the inside of the sliding grooves (49).

8. A sealing detection device for lithium battery processing according to claim 7, characterized in that: On the other side of the mounting seat (41), a second gear (44) is rotatably installed through a bearing, and the second gear (44) is meshed with the first gear (42). A second toothed plate (45) is fixed to the bottom of the top plate (46), and the second gear (44) is meshed with the second toothed plate (45).

9. A hermetic detection device for lithium battery processing according to claim 8, characterized in that: The support frame (3) is provided with a vacant slot (310) at a position corresponding to each aluminum shell battery (6), and the bottom plate (32) is filled inside the vacant slot (310). Spring telescopic plates (311) are fixed to both inner walls of the vacant slot (310), and the extended ends of the spring telescopic plates (311) are fixed to the bottom plate (32).

10. A sealing detection device for lithium battery processing according to claim 1, characterized in that: Cylinders (23) are fixed on the outer walls on both sides of the water tank (2), and the extended ends of the cylinders (23) are fixed to the cover plate (22). Fixing plates (24) are fixed on both sides of the support frame (3), and the tops of the fixing plates (24) are fixed to the cover plate (22). There is a certain distance between the buckle frame (31) and the cover plate (22).

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