Battery airtightness detection machine

Abstract

The utility model relates to the technical field of battery air tightness detection, in particular to a battery air tightness detection machine, which comprises a machine table, a control box, a fixed seat, a switching sliding seat, a translation driving mechanism, a fixed clamping plate, two groups of clamping mechanisms, a side pressure positioning mechanism, a mounting plate, a lifting seat, a lifting driving mechanism, a plurality of air tightness detection heads and an air tightness detection device, one air tightness detection head is communicated with the air tightness detection device through one air pipe, the fixed clamping plate is provided with two groups of battery placing structures, each group of battery placing structures comprises a plurality of placing holes concavely formed in the fixed clamping plate, and the clamping mechanism is used for clamping batteries in the placing holes of the battery placing structures; the plurality of placing holes of the battery placing structure are used for being in one-to-one correspondence with the plurality of airtightness detection heads. According to the air tightness detection device, the batteries are alternately conveyed to the detection position through the two battery placing structures, the air tightness detection efficiency of the batteries is greatly improved, the position precision of the batteries is high, the stability is good, and air tightness detection of the batteries of different specifications can be met.

Description

Technical Field

[0001] This utility model relates to the field of battery airtightness testing technology, and in particular to a battery airtightness testing machine. Background Technology

[0002] In the battery manufacturing process, the airtightness of the battery directly affects its quality, thus requiring airtightness testing. Existing patents, such as Chinese patent application number 202322854988.5, disclose a battery airtightness testing device, including a testing box, a clamping mechanism, a gas extraction and injection mechanism, and a testing component. The testing box contains a sealed testing chamber; the clamping mechanism includes a drive assembly, a first clamping plate, and guide members. The first clamping plate is spaced apart from the first cavity wall of the testing chamber to form a placement position. The drive assembly is drively connected to the first clamping plate to drive it to clamp or release the battery. Two guide members are spaced apart along a first direction within the testing chamber to guide and limit the movement of the first clamping plate. The gas extraction and injection mechanism connects to the battery's electrolyte injection hole; and the testing component detects the presence of a detection gas within the testing chamber. This patent requires stopping the airtightness test when loading or unloading the battery, resulting in a longer testing cycle and lower efficiency. Therefore, the shortcomings are significant, necessitating a solution. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a battery airtightness testing machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A battery airtightness testing machine includes a machine base, a control box mounted on the machine base, a fixed base mounted on the control box, a switching slide horizontally slidably connected to the fixed base, a translation drive mechanism mounted on the control box and / or the fixed base and drivenly connected to the switching slide, a fixed clamping plate disposed on the top surface of the switching slide, two sets of clamping mechanisms mounted opposite to each other on the fixed base, a side-pressure positioning mechanism mounted on the control box and located on the front side of the fixed base, a mounting plate located on the rear side of the fixed base, a lifting seat slidably connected to the mounting plate, a lifting drive mechanism mounted on the mounting plate and used to drive the lifting seat to rise and fall, multiple airtightness testing heads mounted on the lifting seat, an airtightness testing device mounted on the machine base and / or the control box, and an airtightness testing... The device is connected to a vacuum pumping unit. An airtightness detection head is connected to the airtightness detection device via an air pipe. A side pressure positioning mechanism is correspondingly set with multiple airtightness detection heads. The fixed clamping plate has two sets of battery discharge structures in the length direction. Two sets of clamping mechanisms are respectively set with the two sets of battery discharge structures. Each set of battery discharge structures includes multiple placement holes recessed in the fixed clamping plate. The multiple placement holes are arranged along the length direction of the fixed clamping plate. The clamping mechanism is used to clamp the battery in the placement holes of the battery discharge structure. The multiple placement holes of the battery discharge structure are respectively set with multiple airtightness detection heads. As the switching slide moves back and forth, the two sets of battery discharge structures alternately move to the bottom of multiple airtightness detection heads.

[0006] Furthermore, the clamping mechanism includes a clamping driver mounted on the switching slide and / or the fixed clamping plate, and two translation plates stacked on top of each other. The ends of the two translation plates are respectively fixedly connected to the two clamping ends of the clamping driver. The clamping driver is used to drive the two translation plates to reciprocate in opposite directions. The translation plates are provided with multiple clamping blocks in the length direction. The clamping blocks of the two translation plates are spaced apart on the same straight line. One clamping block on one translation plate cooperates with one clamping block on the other translation plate to clamp the battery in the placement hole.

[0007] Furthermore, the fixed clamping plate has a sliding groove that passes through multiple placement holes. The two translation plates of each clamping mechanism are stacked and slidably disposed in the sliding groove, and the clamping block can extend into the placement hole.

[0008] Furthermore, both ends of the switching slide are equipped with limiting members, and the fixed seat is located between the two limiting members. The limiting members are used to abut against the side wall of the fixed seat.

[0009] Furthermore, the side pressure positioning mechanism includes a telescopic driver, a swing plate, and a pressure plate. The telescopic driver is inclined, one end of which is hinged to the control box, and the other end of which is hinged to the middle of the swing plate. The bottom end of the swing plate is hinged to the control box. The pressure plate is located at the top of the swing plate and is movably located in front of the fixed clamping plate.

[0010] Furthermore, the side pressure positioning mechanism also includes an elastic buffer assembly. The pressure plate has a protruding rotating ear, which is rotatably connected to the top of the swing plate. One end of the elastic buffer assembly is fixedly connected to the side wall of the swing plate, and the other end of the elastic buffer assembly is connected to the middle of the pressure plate.

[0011] Furthermore, the elastic buffer assembly includes an adjusting bolt, a fixing block, and a spring. A through hole is provided in the middle of the pressure plate. The stud of the adjusting bolt passes through the through hole and is threadedly connected to the fixing block. The fixing block is installed on the side wall of the swing plate. The spring is sleeved on the stud of the adjusting bolt, and the two ends of the spring elastically abut against the pressure plate and the fixing block, respectively.

[0012] Furthermore, the airtightness detection head includes a suction cup, a connecting member, a sealing ring, and a locking plate. The lifting base is coaxially provided with an insert hole, a through hole, and a mounting hole from top to bottom. A straight tube is connected to the bottom end of the connecting member. The top of the suction cup is inserted into the mounting hole, and the connecting member is embedded in the insert hole. The straight tube passes through the through hole and is inserted into the center hole of the suction cup. The locking plate is installed on the lifting base and is used to limit the connecting member to the insert hole. The sealing ring is set between the locking plate and the top surface of the connecting member. The sealing ring is set around the top end of the connecting member. The locking plate has an insertion hole that communicates with the connecting member. One end of the air tube is inserted into the insertion hole. The peripheral wall of the straight tube is in close contact with the inner wall of the center hole of the suction cup.

[0013] Furthermore, the airtightness testing device includes a frame mounted on the machine base and / or control box, an outer cover mounted on the frame, multiple vacuum gauges embedded in the outer surface of the outer cover, and multiple vacuum valves installed inside the outer cover. The multiple vacuum valves, multiple airtightness testing heads, and multiple vacuum gauges are arranged in a one-to-one correspondence. Each vacuum gauge is connected to an air pipe via a vacuum valve, and each vacuum valve is connected to an airtightness testing head via an air pipe. All vacuum valves are connected to a vacuum pumping device.

[0014] Furthermore, the airtightness detection device also includes multiple indicator lights embedded in the outer surface of the outer cover, and each indicator light is electrically connected to a corresponding vacuum gauge.

[0015] The beneficial effects of this invention are as follows: In practical applications, multiple airtightness detection heads and side pressure positioning mechanisms are in the detection position. There is a loading / unloading position on each side of the detection position. The translation drive mechanism drives the switching slide, along with the fixed clamping plate and two sets of clamping mechanisms, to move horizontally and reciprocally. This causes the two sets of battery placement structures on the fixed clamping plate to alternately move to the detection position. When one set of battery placement structures and one set of clamping mechanisms are in the detection position, the other set of battery placement structures and another set of clamping mechanisms are in the loading / unloading position. Each of the multiple placement holes in the battery placement structure at the detection position contains a battery. The corresponding clamping mechanism clamps multiple batteries within the battery placement structure. The side-pressure positioning mechanism's side-pressure end laterally abuts against the battery's sidewall inside the placement hole. The obstruction of the battery by the inner wall of the placement hole and the side-pressure positioning mechanism's side-pressure end positions the battery within the placement hole, ensuring its positional accuracy and stability. Then, the lifting drive mechanism drives the lifting seat, along with multiple airtightness detection heads, to descend until the multiple airtightness detection heads are tightly fitted over the electrolyte inlets of the multiple batteries. Finally, the airtightness detection device performs an airtightness test on each battery. Because one airtightness detection... The head is connected to the airtightness testing device via an air tube, allowing for simultaneous and independent airtightness testing of each battery. Simultaneously, the clamping mechanism in the loading / unloading position releases the batteries from the corresponding battery placement holes, allowing operators or external machines to remove the tested batteries. Then, the battery to be tested is placed into the placement hole of the same battery placement structure. After the battery is placed, the corresponding clamping mechanism clamps it. Once the equipment completes the airtightness testing of a group (multiple batteries), the translation drive mechanism drives the switching slide connection. The battery placement structure, equipped with a fixed clamping plate and two sets of clamping mechanisms, moves to the loading / unloading position, carrying the battery that has completed the airtightness test. The battery placement structure carrying the battery to be tested moves to the testing position. The two sets of battery placement structures alternately transport the battery to the testing position, greatly improving the efficiency of airtightness testing. In addition, because the clamping mechanism and the side pressure positioning mechanism work together to position the battery in the placement hole, the battery position accuracy is high and the stability is good. It can also meet the airtightness testing requirements of batteries of different specifications, making it versatile and practical. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the hidden machine platform of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the switching slide, fixing clamp, and clamping mechanism of this utility model.

[0019] Figure 4This is an exploded structural diagram of the switching slide, fixing clamp, and clamping mechanism of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the side pressure positioning mechanism of this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the lifting drive mechanism, lifting seat, mounting plate, and airtightness detection head of this utility model.

[0022] Figure 7 This is a cross-sectional view of the lifting seat and airtightness detection head of this utility model.

[0023] Figure 8 This is a three-dimensional structural diagram of the frame, control box, and airtightness detection device of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Machine base; 2. Control box; 3. Translation drive mechanism; 4. Fixed clamping plate; 5. Clamping mechanism; 6. Side pressure positioning mechanism; 7. Mounting plate; 8. Lifting seat; 9. Lifting drive mechanism; 10. Air tightness detection head; 11. Air tightness detection device; 12. Battery placement structure; 13. Placement hole; 14. Clamping driver; 15. Translation plate; 16. Clamping block; 17. Slide groove; 18. Limiting component; 19. Telescopic driver; 20. Swinging plate; 21. 21. Pressure plate; 22. Elastic buffer assembly; 23. Adjusting bolt; 24. Fixing block; 25. Spring; 26. Through hole; 27. Suction cup; 28. Connecting component; 29. ​​Sealing ring; 30. Locking plate; 31. Insertion hole; 32. Through hole; 33. Mounting hole; 34. Straight pipe; 35. Insertion hole; 36. Frame; 37. Outer cover; 38. Vacuum gauge; 39. Vacuum valve; 40. Indicator light; 41. Protective pad; 42. Fixing base; 43. Switching slide. Detailed Implementation

[0026] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0027] like Figures 1 to 8As shown, the present invention provides a battery airtightness testing machine, which includes a machine base 1, a control box 2 mounted on the machine base 1, a fixed base 42 mounted on the control box 2, a switching slide 43 horizontally slidably connected to the fixed base 42, a translation drive mechanism 3 mounted on the control box 2 and / or the fixed base 42 and drivenly connected to the switching slide 43, a fixed clamping plate 4 disposed on the top surface of the switching slide 43, two sets of clamping mechanisms 5 respectively mounted on the fixed base 42, a side pressure positioning mechanism 6 mounted on the control box 2 and located on the front side of the fixed base 42, a mounting plate 7 located on the rear side of the fixed base 42, a lifting seat 8 slidably connected to the mounting plate 7, a lifting drive mechanism 9 mounted on the mounting plate 7 and used to drive the lifting seat 8 to rise and fall, multiple airtightness testing heads 10 mounted on the lifting seat 8, and an airtightness testing device 11 mounted on the machine base 1 and / or the control box 2. A vacuuming device connected to the airtightness detection device 11 is provided. An airtightness detection head 10 is connected to the airtightness detection device 11 via an air pipe. A side pressure positioning mechanism 6 is correspondingly arranged with multiple airtightness detection heads 10. The fixed clamping plate 4 is provided with two sets of battery discharge structures 12 in the length direction. Two sets of clamping mechanisms 5 are respectively arranged one-to-one with the two sets of battery discharge structures 12. Each set of battery discharge structures 12 includes multiple placement holes 13 recessed in the fixed clamping plate 4. The multiple placement holes 13 are arranged along the length direction of the fixed clamping plate 4. The clamping mechanism 5 is used to clamp the battery in the placement hole 13 of the battery discharge structure 12. The multiple placement holes 13 of the battery discharge structure 12 are respectively arranged one-to-one with multiple airtightness detection heads 10. As the switching slide 43 moves back and forth, the two sets of battery discharge structures 12 move alternately to the bottom of multiple airtightness detection heads 10.

[0028] In practical applications, multiple airtightness detection heads 10 and side pressure positioning mechanisms 6 are in the detection position. There is a loading / unloading position on both sides of the detection position. The translation drive mechanism 3 drives the switching slide 43, along with the fixed clamping plate 4 and two sets of clamping mechanisms 5, to move horizontally back and forth. This causes the two sets of battery placement structures 12 on the fixed clamping plate 4 to move alternately to the detection position. When one set of battery placement structures 12 and one set of clamping mechanisms 5 are in the detection position, the other set of battery placement structures 12 and the other set of clamping mechanisms 5 are in the loading / unloading position. Each of the multiple placement holes 13 of the battery placement structure 12 in the detection position contains a battery, and the corresponding clamping... Mechanism 5 clamps multiple batteries within the battery placement structure 12. The side-pressing end of the side-pressing positioning mechanism 6 laterally abuts against the side wall of the battery within the placement hole 13. The obstruction of the battery by the inner wall of the placement hole 13 and the side-pressing end of the side-pressing positioning mechanism 6 positions the battery within the placement hole 13, ensuring the battery's positional accuracy and stability. Then, the lifting drive mechanism 9 drives the lifting seat 8, along with multiple airtightness detection heads 10, to descend until the multiple airtightness detection heads 10 are tightly fitted over the electrolyte inlets of the multiple batteries. Finally, the airtightness detection device 11 performs an airtightness test on each battery. Since one airtightness detection head 10... The battery 0 is connected to the airtightness testing device 11 via an air tube, allowing for simultaneous and independent airtightness testing of each battery. Simultaneously, the clamping mechanism 5, positioned at the loading / unloading position, releases the battery from the corresponding placement hole 13 of the battery placement structure 12. The operator or external machine can then remove the tested battery and place the battery to be tested into the placement hole 13 of the battery placement structure 12. After the battery is placed, the corresponding clamping mechanism 5 clamps it. Once the equipment completes the airtightness testing of a group of batteries (multiple batteries), the translation drive mechanism 3 drives the switching slide... The base 43, along with the fixed clamping plate 4 and two sets of clamping mechanisms 5, moves to move the battery placement structure 12 carrying the battery that has completed the airtightness test to the loading and unloading position, and the battery placement structure 12 carrying the battery to be tested to the testing position. The two sets of battery placement structures 12 alternately transport the battery to the testing position, which greatly improves the efficiency of airtightness testing of the battery. In addition, since the clamping mechanism 5 and the side pressure positioning mechanism 6 work together to position the battery in the placement hole 13, the battery position accuracy is high and the stability is good. It can also meet the airtightness testing of batteries of different specifications, and has good versatility and strong practicality.

[0029] In this embodiment, the clamping mechanism 5 includes a clamping driver 14 mounted on the switching slide 43 and / or the fixed clamping plate 4, and two translation plates 15 slidably arranged in a stacked manner. The ends of the two translation plates 15 are respectively fixedly connected to the two clamping ends of the clamping driver 14. The clamping driver 14 is used to drive the two translation plates 15 to reciprocate in opposite directions. The translation plates 15 are provided with a plurality of clamping blocks 16 in the length direction. The clamping blocks 16 of the two translation plates 15 are arranged at intervals on the same straight line. One clamping block 16 on one translation plate 15 cooperates with one clamping block 16 on the other translation plate 15 to clamp the battery in the placement hole 13. Specifically, the clamping driver 14 can be a finger cylinder.

[0030] In practical applications, when multiple batteries are placed in the multiple placement holes 13 of the battery placement structure 12, the clamping driver 14 of the corresponding clamping mechanism 5 drives the two translation plates 15 to move synchronously in opposite directions until the clamping blocks 16 of the two translation plates 15 cooperate to clamp the batteries; when the inspected batteries are moved to the upper and lower material positions, the clamping driver 14 of the corresponding clamping mechanism 5 drives the two translation plates 15 to move synchronously in opposite directions until the clamping blocks 16 of the two translation plates 15 release the batteries.

[0031] In this embodiment, the fixed clamping plate 4 has a sliding groove 17 that extends through multiple placement holes 13. The two translation plates 15 of each clamping mechanism 5 are slidably stacked within the sliding groove 17, and the clamping block 16 can extend into the placement hole 13. This structural design makes the fixed clamping plate 4 and the two translation plates 15 of the clamping mechanism 5 compact, and the sliding groove 17 guides the translation of the two translation plates 15, improving the stability of the movement of the translation plates 15.

[0032] In this embodiment, both ends of the switching slide 43 are equipped with limiting members 18, and the fixed seat 42 is located between the two limiting members 18. The limiting members 18 are used to abut against the side wall of the fixed seat 42. The distance between the two limiting members 18 is the translational stroke of the switching slide 43. During the reciprocating movement of the switching slide 43, the two limiting members 18 play a limiting role, thereby improving the positional accuracy of the switching slide 43.

[0033] Specifically, the limiting member 18 includes a side plate installed at the end of the switching slide 43 and a limiting bolt threaded through the side plate. Since the position of the liquid filling port of different battery specifications may vary, the limiting bolt is screwed in or out to change the effective limiting length of the limiting bolt, thereby changing the translational stroke of the switching slide 43.

[0034] In this embodiment, the side pressure positioning mechanism 6 includes a telescopic driver 19, a swing plate 20, and a pressure plate 21. The telescopic driver 19 is inclined upward. One end of the telescopic driver 19 is hinged to the control box 2, and the other end of the telescopic driver 19 is hinged to the middle of the swing plate 20. The bottom end of the swing plate 20 is hinged to the control box 2. The pressure plate 21 is disposed at the top of the swing plate 20 and is movably disposed on the front side of the fixed clamping plate 4. Specifically, the telescopic driver 19 can be a cylinder.

[0035] In practical applications, when the telescopic end of the telescopic driver 19 extends, the telescopic driver 19 drives the swing plate 20 to swing outward, and the swing plate 20, together with the pressure plate 21, swings outward; when the telescopic end of the telescopic driver 19 retracts, the telescopic driver 19 drives the swing plate 20 to swing inward, and the swing plate 20, together with the pressure plate 21, swings inward until the pressure plate 21 abuts against the battery in the placement hole 13, and achieves the positioning of the battery's front and rear positions.

[0036] Specifically, a protective pad 41 is provided at the pressing edge of the pressure plate 21. The protective pad 41 plays a buffering and protective role to prevent damage to the battery.

[0037] In this embodiment, the side-pressure positioning mechanism 6 further includes an elastic buffer assembly 22. The pressure plate 21 has a protruding rotating ear, which is rotatably connected to the top of the swing plate 20. One end of the elastic buffer assembly 22 is fixedly connected to the side wall of the swing plate 20, and the other end of the elastic buffer assembly 22 is connected to the middle of the pressure plate 21. During the process of the pressure plate 21 contacting the battery, if the pressure of the pressure plate 21 is too high or the battery specifications have tolerances, the pressure plate 21 can rotate downward relative to the swing plate 20 and compress the elastic buffer assembly 22, so that the pressure plate 21 and the battery are in elastic contact, avoiding the pressure plate 21 from making hard contact with the battery and damaging the battery. Of course, the protective pad 41 can also be replaced by a rotating roller, which is rotatably connected to the pressing edge of the pressure plate 21.

[0038] In this embodiment, the elastic buffer assembly 22 includes an adjusting bolt 23, a fixing block 24, and a spring 25. A through hole 26 is provided in the middle of the pressure plate 21. The stud of the adjusting bolt 23 passes through the through hole 26 and is threadedly connected to the fixing block 24. The fixing block 24 is installed on the side wall of the swing plate 20. The spring 25 is sleeved on the stud of the adjusting bolt 23. The two ends of the spring 25 elastically abut against the pressure plate 21 and the fixing block 24, respectively.

[0039] In practical applications, the angle of the pressure plate 21 can be adjusted by turning the adjusting bolt 23, thereby adjusting the position of the pressure plate 21 against the battery to meet the lateral positioning of batteries of different specifications; and when the pressure plate 21 is subjected to the downward pressure of the battery, the pressure plate 21 can rotate downward relative to the swing plate 20 and compress the spring 25, which plays a certain role in buffering and protection.

[0040] Specifically, the through hole 26 is a countersunk hole, and the nut of the adjusting bolt 23 is housed in the countersunk hole. The structure is compact and the appearance is beautiful, avoiding the nut of the adjusting bolt 23 from being exposed.

[0041] In this embodiment, the airtightness detection head 10 includes a suction cup 27, a connecting member 28, a sealing ring 29, and a locking plate 30. The lifting seat 8 is coaxially provided with an insert hole 31, a through hole 32, and a mounting hole 33 from top to bottom. A straight tube 34 is connected to the bottom end of the connecting member 28. The top of the suction cup 27 is inserted into the mounting hole 33, the connecting member 28 is inserted into the insert hole 31, and the straight tube 34 passes through the through hole 32 and is inserted into the center hole of the suction cup 27. The locking plate 30 is installed on the lifting seat 8. The lowering seat 8 is used to confine the connecting member 28 within the mounting hole 31. The sealing ring 29 is installed between the locking plate 30 and the top surface of the connecting member 28. The sealing ring 29 is arranged around the top port of the connecting member 28. The sealing ring 29 can seal the connection between the locking plate 30 and the connecting member 28. The locking plate 30 has an insertion hole 35 that communicates with the connecting member 28. One end of the air tube is inserted into the insertion hole 35. The peripheral wall of the straight tube 34 is in close contact with the inner wall of the center hole of the suction cup 27.

[0042] In practical applications, the lifting drive mechanism 9 drives the lifting seat 8, along with the airtightness detection head 10, to descend until the suction cup 27 descends to make tight contact with the top surface of the battery. The suction port of the suction cup 27 is sealed and connected to the battery's electrolyte filling port. The airtightness detection device 11 performs airtightness testing on the battery via an air tube, a connecting piece 28, a straight tube 34, and the suction cup 27. The straight tube 34 strengthens the suction cup 27, preventing it from bending under pressure and ensuring airflow continuity. Furthermore, this design allows for modular assembly of the airtightness detection head 10, facilitating disassembly, assembly, and maintenance.

[0043] In this embodiment, the airtightness testing device 11 includes a frame 36 mounted on the machine base 1 and / or control box 2, an outer cover 37 mounted on the frame 36, multiple vacuum gauges 38 embedded on the outer surface of the outer cover 37, and multiple vacuum valves 39 mounted inside the outer cover 37. The multiple vacuum valves 39, multiple airtightness testing heads 10, and multiple vacuum gauges 38 are arranged in a one-to-one correspondence. Each vacuum gauge 38 is connected to a gas pipe via a vacuum valve 39. The vacuum gauge 38 is in a normally open state with the gas pipe via the vacuum valve 39. Each vacuum valve 39 is connected to an airtightness testing head 10 via a gas pipe. The frame 36 or the outer cover 37 is equipped with a vacuum pumping device, and all vacuum valves 39 are connected to the vacuum pumping device. Specifically, the vacuum gauges 38 are digital display vacuum gauges.

[0044] In practical applications, vacuum valve 39 is opened, and the vacuum pumping device evacuates the battery through vacuum valve 39, the air tube, and the airtightness detection head 10 until the battery's vacuum level reaches a preset value. Then, vacuum valve 39 is closed to disconnect the vacuum pumping device from vacuum valve 39. At this point, the vacuum level displayed on vacuum gauge 38 is observed for any change. If the vacuum level displayed on vacuum gauge 38 decreases, it indicates that the battery is leaking, meaning the battery's airtightness is unqualified. If the vacuum level displayed on vacuum gauge 38 remains unchanged, it indicates that the battery's airtightness is qualified. One vacuum gauge 38 corresponds to one battery, allowing for independent airtightness testing of each battery.

[0045] In this embodiment, the airtightness detection device 11 also includes multiple indicator lights 40 embedded in the outer surface of the outer cover 37. Each indicator light 40 is electrically connected to a corresponding vacuum gauge 38. When the vacuum level displayed by the vacuum gauge 38 decreases, the corresponding indicator light 40 illuminates red; when the vacuum level displayed by the vacuum gauge 38 remains unchanged, the corresponding indicator light 40 illuminates green. This structural design facilitates quick identification by operators of which battery has acceptable airtightness and which has unacceptable airtightness.

[0046] All technical features in this embodiment can be freely combined according to actual needs.

[0047] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A battery hermetic detection machine characterized by: The utility model relates to a battery gas tightness detection device, including platform (1), install in platform (1) control box (2), install in control box (2) fixed seat (42), horizontal sliding connection in fixed seat (42) switching slide (43), install in control box (2) or / and fixed seat (42) with switching slide (43) drive connection translation drive mechanism (3), set up in switching slide (43) the fixed clamping plate (4) of top surface, two groups of clamping mechanism (5) are oppositely installed in fixed seat (42), install in control box (2) and be located fixed seat (42) front side's side pressure positioning mechanism (6), be located fixed seat (42) rear side's mounting plate (7), lifting slide connection in mounting plate (7) lifting seat (8), install in mounting plate (7) and be used for drive lifting seat (8) lifting lifting drive mechanism (9), install in lifting seat (8) multiple gas tightness detection head (10) and install in platform (1) or / and control box (2) gas tightness detection device (11), a gas tightness detection head (10) is communicated with gas tightness detection device (11) via a gas pipe, side pressure positioning mechanism (6) is correspondingly set up with multiple gas tightness detection head (10), fixed clamping plate (4) is provided with two groups of discharge battery structure (12) in length direction, two groups of clamping mechanism (5) are set up respectively with two groups of discharge battery structure (12) one to one, every group of discharge battery structure (12) includes recessed in fixed clamping plate (4) multiple placement hole (13), multiple placement hole (13) are arranged along the length direction of fixed clamping plate (4), clamping mechanism (5) is used for clamping the battery in the placement hole (13) of discharge battery structure (12), the multiple placement hole (13) of discharge battery structure (12) is used for respectively with multiple gas tightness detection head (10) one to one set up, with the reciprocating movement of switching slide (43), two groups of discharge battery structure (12) alternately move to the below of multiple gas tightness detection head (10).

2. The battery hermeticity inspection machine of claim 1, wherein: Clamping mechanism (5) includes clamping driver (14) installed on switching slide (43) or / and fixed clamping plate (4) and two translation plates (15) arranged in layers, the ends of the two translation plates (15) are fixedly connected with the two clamping ends of the clamping driver (14), the clamping driver (14) is used for driving the two translation plates (15) to reciprocate in opposite directions, the translation plates (15) are provided with a plurality of clamping blocks (16) in the length direction, the clamping blocks (16) of the two translation plates (15) are arranged at intervals on the same straight line, and one clamping block (16) on one translation plate (15) cooperates with one clamping block (16) on the other translation plate (15) to clamp the battery in the placement hole (13).

3. The battery hermeticity inspection machine of claim 2, wherein: The fixed clamping plate (4) is provided with a sliding groove (17) penetrating through the plurality of placement holes (13), and the two translation plates (15) of each clamping mechanism (5) are arranged in layers and slide in the sliding groove (17), and the clamping blocks (16) can extend into the placement holes (13).

4. The battery hermeticity inspection machine of claim 1, wherein: The two ends of the switching sliding seat (43) are provided with limiters (18), and the fixed seat (42) is located between the two limiters (18), and the limiters (18) are used for abutting against the side walls of the fixed seat (42).

5. The battery hermeticity inspection machine of claim 1, wherein: The side pressing positioning mechanism (6) comprises a telescopic driver (19), a swing plate (20) and a pressing plate (21), the telescopic driver (19) is obliquely arranged, one end of the telescopic driver (19) is hinged to the control box (2), the other end of the telescopic driver (19) is hinged to the middle part of the swing plate (20), the bottom end of the swing plate (20) is hinged to the control box (2), the pressing plate (21) is arranged at the top end of the swing plate (20), and the pressing plate (21) is movably arranged on the front side of the fixed clamping plate (4).

6. The battery hermeticity inspection machine of claim 5, wherein: The side pressing positioning mechanism (6) further comprises an elastic buffer assembly (22), the pressing plate (21) is provided with a rotating lug, the rotating lug is rotatably connected to the top end of the swing plate (20), one end of the elastic buffer assembly (22) is fixedly connected to the side wall of the swing plate (20), and the other end of the elastic buffer assembly (22) is connected to the middle part of the pressing plate (21).

7. The battery hermeticity inspection machine of claim 6, wherein: The elastic buffer assembly (22) comprises an adjusting bolt (23), a fixed block (24) and a spring (25), the middle part of the pressing plate (21) is provided with a through hole (26), the shank of the adjusting bolt (23) penetrates through the through hole (26) and is threadedly connected with the fixed block (24), the fixed block (24) is arranged on the side wall of the swing plate (20), the spring (25) is sleeved on the shank of the adjusting bolt (23), and the two ends of the spring (25) are elastically abutted against the pressing plate (21) and the fixed block (24) respectively.

8. The battery hermeticity inspection machine of claim 1, wherein: The air-tight detection head (10) comprises a suction disc (27), a connecting piece (28), a sealing ring (29) and a locking plate (30), the lifting seat (8) is coaxially provided with an embedding hole (31), a through hole (32) and a mounting hole (33) from top to bottom in sequence, the bottom end of the connecting piece (28) is continuously provided with a straight-through pipe (34), the top of the suction disc (27) is inserted into the mounting hole (33), the connecting piece (28) is embedded into the embedding hole (31), the straight-through pipe (34) penetrates through the through hole (32) and is inserted into the center hole of the suction disc (27), the locking plate (30) is arranged on the lifting seat (8) and is used for limiting the connecting piece (28) in the embedding hole (31), the sealing ring (29) is arranged between the top end face of the locking plate (30) and the connecting piece (28), the sealing ring (29) is arranged around the top end of the connecting piece (28), the locking plate (30) is provided with an insertion hole (35) in communication with the connecting piece (28), one end of the air pipe is inserted into the insertion hole (35), and the peripheral wall of the straight-through pipe (34) is in close contact with the inner wall of the center hole of the suction disc (27).

9. The battery hermeticity inspection machine of claim 1, wherein: The air tightness detection device (11) comprises a machine frame (36) arranged on the machine table (1) or / and the operation box (2), an outer cover (37) arranged on the machine frame (36), a plurality of vacuum gauges (38) embedded on the outer surface of the outer cover (37), and a plurality of vacuum valves (39) arranged in the outer cover (37), the plurality of vacuum valves (39), the plurality of air tightness detection heads (10) and the plurality of vacuum gauges (38) are arranged one by one, one vacuum gauge (38) is communicated with one air pipe through one vacuum valve (39), one vacuum valve (39) is communicated with one air tightness detection head (10) through one air pipe, and all the vacuum valves (39) are communicated with the vacuumizing device.

10. The battery hermeticity inspection machine of claim 9, wherein: The air tightness detection device (11) further comprises a plurality of indicator lamps (40) embedded on the outer surface of the outer cover (37), and the plurality of indicator lamps (40) are electrically connected with the plurality of vacuum gauges (38) one by one.

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