Leakage-proof battery steel shell sealing performance detection device

Abstract

A leakproofness detection device for an anti-leakage battery steel shell comprises a rack and an air pump. A workbench is arranged on the rack; a plurality of detection positions are arranged on the working table, each detection position is composed of a clamp and a detection assembly, and the detection device further comprises an air extracting device and an air charging device which are communicated with the air pump, and a sensing device communicated with the air extracting device; mounting grooves are formed in the tops of the clamps; the air extracting device comprises an air extracting cover and a first driving device, and the air extracting cover can be driven by the first driving device to horizontally move up and down so as to be far away from or close to the clamp; the air charging device comprises an air charging connector located on one side of the clamp, an air charging channel is formed in the clamp, an air outlet of the air charging channel is located at the bottom of the mounting groove, an air inlet of the air charging channel is located on the side edge of the clamp, and the air charging connector is connected to an air inlet of the air charging channel; the utility model provides an automatic detection device which realizes accurate and rapid detection of the sealing performance of a battery steel shell.

Description

Technical Field

[0001] The utility model relates to the field of battery steel shell detection equipment, and particularly relates to a sealing detection equipment for a leak-proof battery steel shell. Background Technique

[0002] A battery refers to a part of a cup, tank or other container or composite container that contains an electrolyte solution and metal electrodes to generate current, and is a device that can convert chemical energy into electrical energy; it has positive and negative electrodes; with the progress of technology, a battery generally refers to a small device that can generate electrical energy; the main performance parameters of a battery are electromotive force, capacity, specific energy and resistance; by using a battery as an energy source, a current with a stable voltage, stable current, long-term stable power supply and little influence from the outside can be obtained, and the battery has a simple structure, is easy to carry, and the charging and discharging operations are simple and easy to perform, and it is not affected by the outside climate and temperature, and has stable and reliable performance, and plays a great role in all aspects of modern social life.

[0003] The main components of a battery are its external steel shell and internal positive and negative electrode materials and electrolyte. Among them, some of the positive and negative electrode materials and electrolyte inside the battery contain liquid. For example, in a zinc-manganese battery, the zinc-manganese battery is a primary battery with manganese dioxide as the positive electrode, zinc as the negative electrode, and an aqueous ammonium chloride solution as the main electrolyte; for the above-mentioned batteries with liquid inside, the requirement for its sealing performance will be improved to ensure that the liquid inside the battery does not leak.

[0004] As disclosed in the Chinese patent with the patent number ZL202320655932.4: "A zinc-manganese dry battery with a leak-proof structure includes a zinc cylinder, a copper cap, a graphite rod, a plastic sealing ring and an electrolyte. The copper cap covers the upper end of the zinc cylinder, the graphite rod is inserted into the zinc cylinder and connected to the copper cap, the electrolyte is filled in the zinc cylinder, the plastic sealing ring is fixedly arranged in the zinc cylinder and above the electrolyte, the zinc-manganese dry battery further includes a reinforcing shell matching with the zinc cylinder, the zinc cylinder is arranged in the reinforcing shell, the bottom of the reinforcing shell has an installation groove, a negative electrode hole runs through the center of the bottom of the reinforcing shell, a negative electrode conductive block supported in the installation groove is arranged in the negative electrode hole, and the negative electrode conductive block is connected to the lower end of the zinc cylinder. The upper edge of the reinforcing shell is bent inward to form a sealing edge, and the four edges of the copper cap abut against the lower surface of the sealing edge. By arranging the zinc cylinder in the reinforcing shell, through the protection of the reinforcing shell, the anti-extrusion and anti-impact performance of the zinc-manganese dry battery is enhanced, and it is not easy to cause the damage of the zinc cylinder, thereby further preventing liquid leakage."

[0005] As described in the above patents, there is a problem with the leak-proof batteries in the prior art. That is, in the production process of the existing leak-proof batteries, generally, the steel shell is first produced, and then the positive and negative electrode materials and electrolyte are filled in the steel shell. After that, the opening at one end of the steel shell is closed by installing an end cap. However, during the production process of the steel shell, cracks may appear on some of the steel shells, and these cracked steel shells cannot meet the sealing requirements of the leak-proof battery. Therefore, these defective steel shells need to be screened out and scrapped during the production process.

[0006] However, there is no equipment in the prior art that can be applied to detect the sealing performance of the battery steel shell. Since the cracks on the surface of the battery steel shell are generally invisible to the naked eye, it is not practical to select them manually. Therefore, there is an urgent need to develop a device for detecting the sealing performance of the battery steel shell. Summary of the Invention

[0007] In order to overcome the deficiency of the lack of automated equipment for detecting battery steel shells in the prior art, the utility model provides a sealing performance detection device for leak-proof battery steel shells.

[0008] The technical solution for the utility model to solve its technical problems is: a sealing performance detection device for leak-proof battery steel shells, including:

[0009] A frame on which a workbench is provided;

[0010] An air pump located inside the frame;

[0011] A number of detection positions are arranged on the workbench, and each detection position is composed of a fixture and a detection component. The detection component further includes an air extraction device and an air inflation device connected to the air pump, and an induction device connected to the air extraction device;

[0012] A fixture with an installation groove at the top for inserting the battery steel shell;

[0013] The air extraction device includes an air extraction hood and a first driving device. The air extraction hood can move up and down under the drive of the first driving device to move away from or close to the fixture;

[0014] The air inflation device includes an air inflation joint located on one side of the fixture. An air inflation channel is provided inside the fixture. The air outlet of the air inflation channel is located at the bottom of the installation groove, and the air inlet of the air inflation channel is located on the side of the fixture. The air inflation joint is connected to the air inlet of the air inflation channel.

[0015] Further, a vacuum chamber and an air extraction channel are provided inside the air extraction hood. The air inlet of the air extraction channel is connected to the vacuum chamber, and the air outlet of the air extraction channel is located on the side of the air extraction hood.

[0016] Furthermore, the vacuum chamber further includes an opening located at the bottom of the air extraction hood, and the battery steel shell on the fixture can enter or leave the vacuum chamber through the opening;

[0017] The air extraction hood has at least an abutting position state and a separating position state relative to the fixture;

[0018] When the air extraction hood is in the abutting position state relative to the fixture, the bottom of the air extraction hood abuts against the top of the fixture. At this time, the air extraction hood covers above the installation groove, so that the battery steel shell on the installation groove is located in the vacuum chamber;

[0019] When the air extraction hood is in the separating position state relative to the fixture, the bottom of the air extraction hood is separated from the bottom of the fixture. At this time, the air extraction hood is away from the installation groove, so that the battery steel shell on the installation groove is separated from the vacuum chamber and the lower part of the air extraction hood is exposed.

[0020] Furthermore, a plurality of fixing columns protrude downward from the top of the vacuum chamber. When the air extraction hood is in the abutting position state relative to the fixture, the fixing columns can form an abutting fit with the battery steel shell located in the vacuum chamber, thereby preventing the battery steel shell from moving relative to the vacuum chamber.

[0021] Furthermore, a sealing ring is fixed at the bottom edge of the air extraction hood. When the air extraction hood is in the abutting position state relative to the fixture, the sealing ring abuts tightly against the top of the fixture.

[0022] Furthermore, a slider is connected to the lower side of the fixture. A slide rail and a second driving device located at one end of the slide rail are also provided on the workbench. The fixture can slide along the slide rail under the drive of the second driving device, so as to move away from or close to the detection component.

[0023] Furthermore, the induction device is a pressure sensor connected to the air extraction hood. A detection hole communicating with the vacuum chamber is also opened on the air extraction hood, and the head of the pressure sensor passes through the detection hole and extends into the vacuum chamber.

[0024] Furthermore, an air extraction solenoid valve and an inflation solenoid valve are arranged in the frame. The air extraction solenoid valve is arranged on the air path between the air extraction device and the air pump; the inflation solenoid valve is arranged on the air path between the inflation device and the air pump.

[0025] Further, both the first driving device and the second driving device are provided as cylinders, and the first driving device and the second driving device are also in communication with an air pump; a first driving solenoid valve and a second driving solenoid valve are further provided in the frame; the first driving solenoid valve is disposed on the air path between the first driving device and the air pump; the second driving solenoid valve is disposed on the air path between the second driving device and the air pump.

[0026] Further, a display screen is provided on the frame; each of the detection positions further includes an indicator light group located on the frame, and the indicator light group includes a qualified indicator light and a defective product indicator light.

[0027] The detection process of the present utility model:

[0028] 1. First, the battery steel shell processed in the previous production process is transported to the detection device of the present utility model. The piston rod of the second driving device is pushed out to drive the fixture to move away from the detection assembly along the slide, so as to facilitate the manipulator to place the battery steel shell to be detected on the mounting groove of the fixture. After the battery steel shell is placed, the piston rod of the second driving device retracts, driving the fixture to move close to the detection assembly and reach directly below the detection assembly;

[0029] 2. The piston rod of the first driving device is pushed out to drive the air extraction hood to move downward, so that the air extraction hood is switched from the separated position state to the abutting position state relative to the fixture. Then the air pump is started to extract air through the air extraction channel, so that the vacuum chamber is in a vacuum state. Then the air pump is started again to inflate through the inflation channel, and the inflated gas enters the battery steel shell through the mounting groove;

[0030] 3. The pressure sensor senses the pressure change in the vacuum chamber; if the pressure sensor senses that the pressure in the vacuum chamber has risen significantly, it means that gas has entered the vacuum chamber through the crack on the battery steel shell. At this time, the defective product indicator light on the corresponding detection position will light up to indicate that the battery steel shell is a defective product; if the pressure sensor does not sense a change in the pressure in the vacuum chamber, it means that no gas has leaked into the vacuum chamber, so the battery steel shell is intact. At this time, the qualified indicator light on the corresponding detection position will light up to indicate that the battery steel shell is a qualified product;

[0031] 4. After the detection of each detection position is completed, the piston rod of the first driving device retracts to drive the air extraction hood to move upward, so that the air extraction hood is switched from the abutting position state to the separated position state relative to the fixture. Finally, the piston rod of the second driving device is pushed out to drive the fixture to move away from the detection assembly along the slide, so as to facilitate the manipulator to take away the detected battery steel shell and place the next round of battery steel shell to be detected.

[0032] The beneficial effects of the present utility model are as follows:

[0033] 1. An automated detection device is provided. The air extraction hood covers the battery steel shell and extracts air to create a vacuum environment. After inflating the battery steel shell, the induction device senses the change of the vacuum environment to determine whether there is a crack in the battery steel shell causing air leakage, thus realizing accurate and rapid detection of the sealing performance of the battery steel shell.

[0034] 2. A fixed column is arranged inside the air extraction hood to restrict the movement of the battery steel shell, and a sealing ring at the bottom of the air extraction hood is used to enhance the sealing between the air extraction hood and the fixture, thereby precisely controlling various external factors during the detection process, effectively avoiding the influence of these factors on the detection results, and making the detection results more reliable.

[0035] 3. A slider is also connected to the bottom of the fixture. By relying on the sliding of the slider relative to the slide rail on the workbench, the fixture can be driven to move closer to or away from the detection component, so that the fixture can drive the battery steel shell thereon to move, facilitating the production manipulator to pick up and place the battery steel shell on the fixture. This not only makes the automation degree of this device higher, but also can be better applied to the entire automated production line of batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic structural view of the present utility model.

[0037] Figure 2 is a schematic view of the internal structure of the frame of the present utility model.

[0038] Figure 3 is a schematic structural view of the detection position in the present utility model.

[0039] Figure 4 is an exploded view of the detection position in the present utility model.

[0040] Figure 5 is a schematic structural view of the air extraction hood in the present utility model.

[0041] Figure 6 is a schematic view of the state when the air extraction hood is in the abutting position relative to the fixture in the present utility model.

[0042] Figure 7 is a schematic view of the state when the air extraction hood is in the separated position relative to the fixture in the present utility model.

[0043] Reference numerals in the figure: 1, frame; 2, workbench; 3, air pump; 4, fixture; 5, air extraction device; 6, inflation device; 7, induction device; 8, installation groove; 9, air extraction hood; 10, first driving device; 11, inflation joint; 12, inflation channel; 13, vacuum chamber; 14, air extraction channel; 15, opening; 16, fixed column; 17, sealing ring; 18, slider; 19, slide rail; 20, second driving device; 21, detection hole; 22, air extraction solenoid valve; 23, inflation solenoid valve; 24, first driving solenoid valve; 25, second driving solenoid valve; 26, display screen; 27, qualified indicator light; 28, defective product indicator light; 29, sealing groove; 30, air source processor; 100, battery steel shell; a, abutting position state; b, separating position state. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] It should be understood that although the terms up, middle, down, top, one end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for easy understanding, rather than to define any limitation in direction or order.

[0046] Embodiment

[0047] Combined with Figures 1 to 7 As shown in the figure, a sealing detection device for a leak-proof liquid battery steel shell includes a frame 1 and an air pump 3; a workbench 2 is arranged on the frame 1; the air pump 3 is located inside the frame 1; a plurality of detection positions are arranged in a row on the workbench 2, and each detection position is composed of a fixture 4 and a detection component. The detection component further includes an air extraction device 5 and an inflation device 6 that are connected to the air pump 3, and an induction device 7 that is connected to the air extraction device 5; an installation groove 8 for inserting the battery steel shell 100 is opened at the top of the fixture 4; the air extraction device 5 includes an air extraction hood 9 and a first driving device 10, and the air extraction hood 9 can be driven by the first driving device 10 to move up and down, so as to move away from or close to the fixture 4; the inflation device 6 includes an inflation joint 11 located on one side of the fixture 4, an inflation channel 12 is opened in the fixture 4, the air outlet of the inflation channel 12 is located at the bottom of the installation groove 8, the air inlet of the inflation channel 12 is located on the side of the fixture 4, and the inflation joint 11 is connected to the air inlet of the inflation channel 12.

[0048] Combined Figures 5 to 7 As shown, in this embodiment, a vacuum chamber 13 and an air extraction channel 14 are provided in the air extraction hood 9. The air inlet of the air extraction channel 14 is communicated with the vacuum chamber 13, and the air outlet of the air extraction channel 14 is located on the side of the air extraction hood 9.

[0049] Combined Figures 5 to 7 As shown, in this embodiment, the vacuum chamber 13 further includes an opening 15 at the bottom of the air extraction hood 9. The battery steel shell 100 on the fixture 4 can enter or leave the vacuum chamber 13 through the opening 15; the air extraction hood 9 has at least an abutting position state a and a separating position state b relative to the fixture 4; when the air extraction hood 9 is in the abutting position state a relative to the fixture 4, the bottom of the air extraction hood 9 abuts against the top of the fixture 4. At this time, the air extraction hood 9 covers above the installation groove 8 so that the battery steel shell 100 on the installation groove 8 is located in the vacuum chamber 13; when the air extraction hood 9 is in the separating position state b relative to the fixture 4, the bottom of the air extraction hood 9 is separated from the bottom of the fixture 4. At this time, the air extraction hood 9 is far away from the installation groove 8 so that the battery steel shell 100 on the installation groove 8 is separated from the vacuum chamber 13 and the lower part of the air extraction hood 9 is exposed.

[0050] Combined Figures 5 to 7 As shown, in this embodiment, several fixing columns 16 protrude downward from the top of the vacuum chamber 13. When the air extraction hood 9 is in the abutting position state a relative to the fixture 4, the fixing columns 16 can form an abutting fit with the battery steel shell 100 located in the vacuum chamber 13, thereby preventing the battery steel shell 100 from moving relative to the vacuum chamber 13.

[0051] Combined Figures 3 to 7 As shown, in this embodiment, a sealing ring 17 is further fixed at the bottom edge of the air extraction hood 9. When the air extraction hood 9 is in the abutting position state a relative to the fixture 4, the sealing ring 17 abuts tightly against the top of the fixture 4.

[0052] Combined Figure 4 、 Figure 6 and Figure 7 As shown, in this embodiment, a sealing groove 29 is further provided around the installation groove 8 at the top of the fixture 4. When the air extraction hood 9 is in the abutting position state a relative to the fixture 4, the bottom of the sealing ring 17 can be inserted and fitted in the sealing groove 29.

[0053] Combined Figures 1 to 4As shown, in this embodiment, a slider 18 is further connected to the lower side of the fixture 4, and a slide rail 19 and a second driving device 20 located at one end of the slide rail 19 are further provided on the workbench 2. The fixture 4 can slide along the slide rail 19 under the drive of the second driving device 20, so as to move away from or close to the detection assembly.

[0054] Combined with Figure 1 、 Figure 3 and Figure 4 As shown, in this embodiment, the induction device 7 is a pressure sensor connected to the air extraction hood 9. A detection hole 21 communicating with the vacuum chamber 13 is further opened on the air extraction hood 9. The head of the pressure sensor passes through the detection hole 21 and extends into the vacuum chamber 13.

[0055] Among them, as shown in Figure 2 In this embodiment, an air extraction solenoid valve 22 and an inflation solenoid valve 23 are provided in the frame 1. The air extraction solenoid valve 22 is arranged on the air path between the air extraction device 5 and the air pump 3; the inflation solenoid valve 23 is arranged on the air path between the inflation device 6 and the air pump 3.

[0056] Among them, as shown in Figure 2 In this embodiment, the first driving device 10 and the second driving device 20 are both arranged as cylinders, and the first driving device 10 and the second driving device 20 are also in communication with the air pump 3; a first driving solenoid valve 24 and a second driving solenoid valve 25 are further provided in the frame 1; the first driving solenoid valve 24 is arranged on the air path between the first driving device 10 and the air pump 3; the second driving solenoid valve 25 is arranged on the air path between the second driving device 20 and the air pump 3.

[0057] Among them, as shown in Figure 2 In this embodiment, an air source processor 30 is further provided on the frame 1, and the air source processor 30 is arranged on the air path between the air pump 3 and each solenoid valve.

[0058] Among them, as shown in Figure 1 In this embodiment, a display screen 26 is provided on the frame 1; each detection position further includes an indicator light group located on the frame 1, and the indicator light group includes a qualified indicator light 27 and a defective indicator light 28.

[0059] The detection process of this embodiment:

[0060] 1. First, the battery steel shell 100 processed in the previous production process is transported to the detection device of the present invention. The piston rod of the second driving device 20 is pushed out to drive the fixture 4 to move away from the detection component along the slide, so as to facilitate the manipulator to place the battery steel shell 100 to be detected on the mounting groove 8 of the fixture 4. After the battery steel shell 100 is placed, the piston rod of the second driving device retracts, driving the fixture 4 to move closer to the detection component and reach directly below the detection component;

[0061] 2. The piston rod of the first driving device 10 is pushed out to drive the air extraction hood 9 to move downward, so that the air extraction hood 9 switches from the separated position state b to the abutting position state a relative to the fixture 4. Then, the air pump 3 is started to extract air through the air extraction channel 14, so that the vacuum chamber 13 is in a vacuum state. Then, the air pump 3 is started again to inflate through the inflation channel 12, and the inflated gas enters the battery steel shell 100 through the mounting groove 8;

[0062] 3. The pressure sensor senses the pressure change in the vacuum chamber 13; if the pressure sensor senses that the pressure in the vacuum chamber 13 rises significantly, it means that gas has entered the vacuum chamber 13 through the crack on the battery steel shell 100. At this time, the defective product indicator light 28 at the corresponding detection position will light up to indicate that the battery steel shell 100 is a defective product; if the pressure sensor does not sense a change in the pressure in the vacuum chamber 13, it means that no gas leaks into the vacuum chamber 13, so the battery steel shell 100 is intact. At this time, the corresponding indicator lights at the detection position will light up to indicate that the battery steel shell 100 is a qualified product;

[0063] 4. After the detection of each detection position is completed, the piston rod of the first driving device 10 retracts to drive the air extraction hood 9 to move upward, so that the air extraction hood 9 switches from the abutting position state to the separated position state b relative to the fixture 4. Finally, the piston rod of the second driving device 20 is pushed out to drive the fixture 4 to move away from the detection component along the slide, so as to facilitate the manipulator to take away the detected battery steel shell 100 and place the next battery steel shell 100 to be detected.

[0064] The advantages of this embodiment are as follows: It provides a device that can realize the detection of battery steel shells, and each step can be completed automatically, making the automation degree of the device higher.

[0065] The above specific embodiments are only explanations of the present invention, and they are not limitations of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A leak-proof battery steel shell sealing detection device, comprising: A frame (1) on which a workbench (2) is arranged; An air pump (3) located in the frame (1); Features: A plurality of detection positions are arranged on the workbench (2), each of which is composed of a fixture (4) and a detection component, and the detection component further includes an air extraction device (5) and an air filling device (6) connected to an air pump (3), and a sensing device (7) connected to the air extraction device (5); A clamp (4) having a mounting groove (8) on the top thereof for inserting a battery steel shell (100); An exhaust device (5) comprising an exhaust hood (9) and a first drive device (10), wherein the exhaust hood (9) can be moved up and down under the drive of the first drive device (10) to move away from or closer to the clamp (4); The inflation device (6) includes an inflation connector (11) located on one side of the clamp (4), an inflation channel (12) is provided in the clamp (4), an air outlet of the inflation channel (12) is located at the bottom of the mounting groove (8), an air inlet of the inflation channel (12) is located on the side of the clamp (4), and the inflation connector (11) is connected to the air inlet of the inflation channel (12).

2. The leak-proof battery steel shell sealing detection device according to claim 1, characterized in that: A vacuum chamber (13) and a vacuum channel (14) are provided in the vacuum hood (9); an air inlet of the vacuum channel (14) is connected to the vacuum chamber (13); and an air outlet of the vacuum channel (14) is located on the side of the vacuum hood (9).

3. The leak-proof battery steel shell sealing detection device according to claim 2, characterized in that: The vacuum chamber (13) further comprises an opening (15) located at the bottom of the vacuum hood (9), and the battery steel shell (100) on the clamp (4) can enter or leave the vacuum chamber (13) through the opening (15); The exhaust hood (9) has at least an abutting position state (a) and a separated position state (b) relative to the clamp (4); When the exhaust hood (9) is in the abutting position state (a) relative to the clamp (4), the bottom of the exhaust hood (9) abuts against the top of the clamp (4), and at this time, the exhaust hood (9) is arranged above the mounting groove (8) so that the battery steel shell (100) on the mounting groove (8) is located in the vacuum chamber (13); When the vacuum hood (9) is in a separated position state (b) relative to the clamp (4), the bottom of the vacuum hood (9) is separated from the bottom of the clamp (4). At this time, the vacuum hood (9) is away from the mounting groove (8), so that the battery steel shell (100) on the mounting groove (8) is separated from the vacuum chamber (13) and exposed below the vacuum hood (9).

4. The leak-proof battery steel shell sealing detection device according to claim 3, characterized in that: The vacuum chamber (13) is provided with a plurality of fixing columns (16) protruding downward at the top thereof. When the vacuum hood (9) is in an abutting position state (a) relative to the clamp (4), the fixing columns (16) can form an abutting fit with the battery steel shell (100) located in the vacuum chamber (13), thereby preventing the battery steel shell (100) from moving relative to the vacuum chamber (13).

5. The leak-proof battery steel shell sealing detection device according to claim 3, characterized in that: A sealing ring (17) is also fixed at the bottom edge of the vacuum hood (9); when the vacuum hood (9) is in an abutting position state (a) relative to the clamp (4), the sealing ring (17) is tightly abutted against the top of the clamp (4).

6. The leak-proof battery steel shell sealing detection device according to claim 1, characterized in that: The lower side of the clamp (4) is also connected to a slider (18), and the workbench (2) is also provided with a slide rail (19) and a second driving device (20) located at one end of the slide rail (19). Driven by the second driving device (20), the clamp (4) can slide along the slide rail (19) to move away from or close to the detection component.

7. The leakproof battery steel shell sealing detection device according to claim 2, characterized in that: The sensing device (7) is a pressure sensor connected to the vacuum hood (9). The vacuum hood (9) is also provided with a detection hole (21) connected to the vacuum chamber (13). The head of the pressure sensor passes through the detection hole (21) and extends into the vacuum chamber (13).

8. The leak-proof battery steel shell sealing detection device according to claim 1, characterized in that: An exhaust solenoid valve (22) and an inflation solenoid valve (23) are arranged in the frame (1); the exhaust solenoid valve (22) is arranged on the air path between the exhaust device (5) and the air pump (3); and the inflation solenoid valve (23) is arranged on the air path between the inflation device (6) and the air pump (3).

9. The leak-proof battery steel shell sealing detection device according to claim 6, characterized in that: The first drive device (10) and the second drive device (20) are both configured as cylinders, and the first drive device (10) and the second drive device (20) are also connected to the air pump (3); a first drive solenoid valve (24) and a second drive solenoid valve (25) are also provided in the frame (1); the first drive solenoid valve (24) is provided on the air path between the first drive device (10) and the air pump (3); and the second drive solenoid valve (25) is provided on the air path between the second drive device (20) and the air pump (3).

10. The leakproof battery steel shell sealing detection device according to claim 1, characterized in that: The frame (1) is provided with a display screen (26); each of the detection positions also includes an indicator light group located on the frame (1), and the indicator light group includes a qualified indicator light (27) and a defective indicator light (28).

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