Helium returning and nailing testing machine for cylindrical battery

Abstract

The utility model discloses a cylindrical battery helium returning and nailing testing machine which comprises a machine table, a battery remodeling jig, a nail feeding mechanism, a nail feeding butt joint mechanism, a nail pre-pressing and sucking mechanism, a helium returning and nailing mechanism and a driving mechanism, and the battery remodeling jig, the nail feeding butt joint mechanism and the nail feeding mechanism are sequentially arranged at the top end of the machine table from left to right. The driving mechanism is arranged at the top end of the machine table and located behind the battery remodeling jig and the nail feeding butt joint mechanism, and the helium returning nailing mechanism and the nail pre-pressing and sucking mechanism are sequentially arranged on the side, close to the battery remodeling jig and the nail feeding butt joint mechanism, of the driving mechanism from left to right. And the two positioning mechanisms are positioned above the battery remodeling jig and the nail feeding and butting mechanism. According to the automatic nailing machine, the nailing efficiency is improved, the labor cost is reduced, batch nailing work can be achieved, and the use requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a cylindrical battery helium return nailing test machine. Background Technology

[0002] For aluminum-cased cylindrical batteries produced during the experimental phase, after secondary electrolyte filling, it is typically necessary to apply a sealing nail (with three circumferentially spaced grooves on the outer wall of the sealing nail) to the center of the top of the aluminum casing to seal the filling port. Currently, this sealing is usually done manually. This manual method reduces nailing efficiency, increases labor costs, and cannot be used for batch processing, thus failing to meet usage requirements. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides a cylindrical battery helium recharge nailing test machine, which improves nailing efficiency, reduces labor costs, and enables batch nailing work, thus meeting the usage requirements.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A cylindrical battery helium-return nailing test machine includes a machine base, a battery replacement fixture, a nail feeding mechanism, a nail feeding docking mechanism, a pre-compression nail suction mechanism, a helium-return nailing mechanism, and a drive mechanism. The battery replacement fixture, the nail feeding docking mechanism, and the nail feeding mechanism are sequentially arranged from left to right at the top of the machine base. The drive mechanism is located at the top of the machine base and behind the battery replacement fixture and the nail feeding docking mechanism. The helium-return nailing mechanism and the pre-compression nail suction mechanism are sequentially arranged from left to right on the side of the drive mechanism closest to the battery replacement fixture and the nail feeding docking mechanism, and are both located above the battery replacement fixture and the nail feeding docking mechanism. The battery replacement fixture is used to hold the cylindrical battery, and the nail feeding mechanism is used to feed the sealant nails to the battery replacement fixture and the pre-compression nail suction mechanism. The nail feeding and docking mechanism includes a driving mechanism that drives the pre-pressed nail suction mechanism and the helium return nailing mechanism to move left and right. The pre-pressed nail suction mechanism is used to pick up the sealing nail from the nail feeding and docking mechanism and to pre-press the picked-up sealing nail into the electrolyte inlet of the cylindrical battery, so as to partially drive the sealing nail into the electrolyte inlet of the cylindrical battery. The helium return nailing mechanism is used to evacuate the inside of the cylindrical battery through the recessed groove of the pre-pressed sealing nail in the electrolyte inlet and the electrolyte inlet of the cylindrical battery, return helium, and after the helium return is completed, further press the pre-pressed sealing nail into the electrolyte inlet of the cylindrical battery, so as to drive all the portion of the sealing nail located outside the electrolyte inlet into the electrolyte inlet of the cylindrical battery.

[0006] The beneficial effects of this utility model are as follows: This utility model, through the setting of a machine platform, battery changing fixture, nail feeding mechanism, nail feeding docking mechanism, pre-press nail suction mechanism, helium return nailing mechanism and drive mechanism, can realize the automatic application of sealant nails to the liquid injection port of cylindrical batteries. Compared with the existing technology that uses manual methods, it greatly improves the nailing efficiency, reduces labor costs, and can realize batch nailing work, thus meeting the needs of use. Attached Figure Description

[0007] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0008] Figure 1 This is a schematic diagram of the structure of a cylindrical battery helium reversion nailing test machine at a first angle according to an embodiment of the present invention;

[0009] Figure 2 yes Figure 1 The diagram shows the second angle of the cylindrical battery helium reversion nailing test machine.

[0010] Figure 3 yes Figure 1 The diagram shows the structure of the battery replacement fixture of the cylindrical battery helium reversion nailing test machine at the first angle.

[0011] Figure 4 yes Figure 3 A schematic diagram of the battery replacement fixture from the second angle;

[0012] Figure 5 yes Figure 3 The diagram shows the structure of the battery replacement fixture after a cylindrical battery has been placed in it.

[0013] Figure 6 yes Figure 3 A top view of the battery replacement fixture shown.

[0014] Figure 7 yes Figure 1 The diagram shows the structure of the nail feeding mechanism and the nail feeding docking mechanism of the cylindrical battery helium recharge nailing test machine.

[0015] Figure 8 This is a structural diagram of the sealing glue nail;

[0016] Figure 9 yes Figure 7 The diagram shows the structure of the nail feeding and docking mechanism.

[0017] Figure 10 yes Figure 1 The diagram shows the structure of the pre-pressure nail suction mechanism, the eccentric liquid injection port calibration fixture, and the first angle of the helium return nailing mechanism of the cylindrical battery helium return nailing test machine.

[0018] Figure 11 yes Figure 10 The diagram shows the second angle of the pre-compression nail suction mechanism, the eccentric liquid injection port calibration fixture, and the helium return nailing mechanism.

[0019] Figure 12 yes Figure 10 The diagram shows the structure of the helium return nailing mechanism after removing the first nailing cylinder.

[0020] Figure 13 yes Figure 10 The diagram shown is a cross-sectional view of the helium recirculation nailing mechanism after removing the first nailing cylinder, the second nailing cylinder, and the nailing connecting plate.

[0021] Figure 14 yes Figure 1 The diagram shows the structure of the cleaning tank of the cleaning mechanism of the cylindrical battery helium recharge nail tester at the first angle.

[0022] Figure 15 yes Figure 14 A schematic diagram of the second angle of the cleaning tank shown;

[0023] Figure 16 yes Figure 14 A cross-sectional view of the cleaning tank.

[0024] Figure label:

[0025] 10. Machine base; 11. Fixture mounting plate; 12. Module bracket; 13. Machine base mounting plate; 14. Indicator light; 15. Fan bracket;

[0026] 20. Battery replacement fixture; 21. Fixture base plate; 23. Fixture mounting component; 231. V-groove; 2311. Groove; 24. Placement platform; 251. Pull block; 252. Positioning block; 253. Pull rod; 254. Fixture linear bearing; 255. Fixture elastic component; 2551. First connecting block; 2552. Second connecting block;

[0027] 30. Nail feeding mechanism; 31. Vibrator; 311. Feed trough; 32. Ionizing fan;

[0028] 40. Nail feeding and docking mechanism; 41. Docking bracket; 42. Docking platform; 421. Sensor bracket; 43. Air tube; 44. Docking sensor;

[0029] 50. Pre-stressed nail suction mechanism; 51. Nail suction seat; 511. Slider; 512. Slide rail; 52. Nail suction connecting plate; 521. Nail suction connector; 53. Nail suction mounting plate; 531. Pointer; 54. Nail suction nozzle; 55. Nail suction cylinder; 56. Scale plate; 561. Scale; 57. Nail suction base; 58. Hydraulic buffer;

[0030] 60. Helium-return nailing mechanism; 61. First nailing cylinder; 62. Nail-driving connecting plate; 63. Second nailing cylinder; 631. Guide block; 632. Cylinder seat; 641. First nailing seat; 6411. Nailing seat through cavity; 6412. Nail-driving connector; 6413. Bottom bushing; 6414. Top bushing; 6418. Nail-driving channel; 642. Second nailing seat; 6421. Mounting cavity; 6 422. Clearance hole; 6423. Nail-driving elastic element; 6424. First mounting block; 6425. Second mounting block; 643. Nail-driving pressure block; 6431. Pressure block through cavity; 6432. Pressure block sealing ring; 6433. Annular groove; 64331. Connecting channel; 6434. First sealing ring; 6417. Second sealing ring; 644. Nail-driving pressure rod; 6441. Pressure head; 6443. Connecting sleeve;

[0031] 70. Drive mechanism; 71. Linear module;

[0032] 80. Eccentric injection port calibration fixture; 81. Fixture base; 811. Fixture vertical plate; 8111. Placement slot; 82. Calibration rod; 82a. Head of calibration rod; 821. Limiting rod; 83. Fixture linear bearing;

[0033] 90. Cleaning mechanism; 91. Cleaning tank; 9111. First flow channel; 91111. Third flow channel; 911. Cleaning support; 912. Cleaning chamber; 9121. Second flow channel; 913. Liquid inlet connector; 914. Liquid outlet connector; 915. Groove; 916. Residual liquid channel; 917. Residual liquid connector; 92. Storage tank; 921. First pipeline; 922. Fluid control two-way valve; 923. Liquid level sensor; 93. Residual liquid tank;

[0034] 200, Cylindrical battery; 201, Liquid filling port; 300, Sealing nail; 303, Recessed groove. Detailed Implementation

[0035] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0036] Please refer to Figure 1and Figure 2 An embodiment of this utility model provides a cylindrical battery helium return nailing test machine, which includes a machine base 10, a battery changing fixture 20, a nail feeding mechanism 30, a nail feeding docking mechanism 40, a pre-compression nail suction mechanism 50, a helium return nailing mechanism 60, and a drive mechanism 70.

[0037] The battery replacement fixture 20, the nail feeding and docking mechanism 40, and the nail feeding mechanism 30 are arranged sequentially from left to right at the top of the machine base 10. The drive mechanism 70 is located at the top of the machine base 10 and behind the battery replacement fixture 20 and the nail feeding and docking mechanism 40. The helium return nailing mechanism 60 and the pre-compression nail suction mechanism 50 are arranged sequentially from left to right on the side of the drive mechanism 70 closest to the battery replacement fixture 20 and the nail feeding and docking mechanism 40, with both mechanisms located above them. The battery replacement fixture 20 is used to hold the cylindrical battery 200. The nail feeding mechanism 30 is used to feed the sealant nail 300 to the nail feeding and docking mechanism 40. Figure 8 As shown, the outer wall of the sealing nail 300 is provided with three recessed grooves 303 spaced circumferentially. The pre-pressing nail suction mechanism 50 is used to pick up the sealing nail 300 from the nail feeding docking mechanism 40 and to pre-press the picked-up sealing nail 300 into the liquid filling port 201 of the cylindrical battery 200, so as to partially drive the sealing nail 300 into the liquid filling port 201 of the cylindrical battery 200. The helium return and nailing mechanism 60 is used to evacuate and return helium to the interior of the cylindrical battery 200 through the recessed groove 303 of the pre-pressed sealing nail 300 in the liquid injection port 201 of the cylindrical battery 200, and after the helium return is completed, to further press the pre-pressed sealing nail 300 into the liquid injection port 201 of the cylindrical battery 200, so as to drive all the part of the sealing nail 300 located outside the liquid injection port 201 into the liquid injection port 201 of the cylindrical battery 200. The drive mechanism 70 is used to drive the pre-pressed nail suction mechanism 50 and the helium return and nailing mechanism 60 to move left and right. During the movement of the pre-pressed nail suction mechanism 50 and the helium return and nailing mechanism 60 driven by the drive mechanism 70, when the pre-pressed nail suction mechanism 50 is directly above the nail feeding docking mechanism 40, the helium return and nailing mechanism 60 is directly above the battery changing fixture 20.

[0038] In this embodiment, the driving mechanism 70 includes a linear module 71. A module support 12 is provided behind the battery changing fixture 20 and the nail feeding and docking mechanism 40. The module support 12 is located at the top of the machine base 10. The linear module 71 is located on the side of the module support 12 near the battery changing fixture 20 and the nail feeding and docking mechanism 40. The helium return nailing mechanism 60 and the pre-press nail suction mechanism 50 are both located on the side of the linear module 71 near the battery changing fixture 20 and the nail feeding and docking mechanism 40. The linear module 71 is used to drive the helium return nailing mechanism 60 and the pre-press nail suction mechanism 50 to move left and right.

[0039] Combination Figures 3 to 6 As shown, the battery replacement fixture 20 includes a fixture base plate 21, a T-shaped fixture mounting component 23, a placement platform 24 for placing the cylindrical battery 200, and a clamp. The top of the machine base 10 is provided with a fixture mounting plate 11 (see...). Figure 1 The fixture base plate 21 is located at the top of the fixture mounting plate 11. The fixture mounting member 23 is located at the top of the fixture base plate 21, and a V-groove 231 is provided on the side of the fixture mounting member 23 near the drive mechanism 70. The V-groove 231 is used to mate with the cylindrical battery 200. The placement platform 24 is located at the top of the fixture base plate 21 and behind the fixture mounting member 23, with part of the placement platform 24 extending into the V-groove 231. In this embodiment, the bottom end of the V-groove 231 has a groove 2311 corresponding to the placement platform 24 (see...). Figure 4 The distance between the top of the placement platform 24 and the top of the fixture mounting part 23 is less than the height of the cylindrical battery 200.

[0040] The fixture includes a pull block 251, a positioning block 252, and two pull rods 253. The pull block 251 and positioning block 252 are arranged opposite each other, and both are inclined upwards relative to the fixture mounting member 23. The fixture mounting member 23 is located between the pull block 251 and the positioning block 252. The two pull rods 253 are spaced apart horizontally, with the pull rod 253 closer to the nail feeding docking mechanism 40 positioned above the pull rod 253 farther from the nail feeding docking mechanism 40. The two pull rods 253 pass through two through holes in the fixture mounting member 23, with one end of each pull rod 253 connected to the pull block 251 and the other end connected to the positioning block 252. A V-groove 231 is located between the two pull rods 253. A linear bearing 254 is installed inside the through hole. The linear bearing 254 is sleeved on the outer circumference of the corresponding pull rod 253. A fixture elastic element 255 is provided between the linear bearing 254 and the pull block 251. The fixture elastic element 255 is arranged around the outer circumference of the corresponding pull rod 253. One end of the fixture elastic element 255 is connected to the pull block 251, and the other end is connected to the linear bearing 254. The fixture elastic element 255 is a compression spring.

[0041] In this embodiment, one end of the elastic element 255 of the fixture is provided with a first connecting block 2551, and the other end is provided with a second connecting block 2552. The first connecting block 2551 is connected to the pulling block 251, and the second connecting block 2552 is connected to the linear bearing 254 of the fixture. The first connecting block 2551 and the second connecting block 2552 are both arranged around the outer periphery of the corresponding pull rod 253.

[0042] Combination Figure 7 and Figure 9 As shown, the nail feeding mechanism 30 includes a vibrator 31 and an ion fan 32. The vibrator 31 is located at the top of the machine base 10. The vibrator 31 is a conventional linear feeding vibrator, and its structure will not be described in detail here. The discharge end of the feeding trough 311 of the vibrator 31 faces the nail feeding docking mechanism 40. The feeding trough 311 is used to place the sealing nails 300. The width of the feeding trough 311 is slightly larger than the outer diameter of the sealing nails 300. In practical applications, multiple sealing nails 300 can be sequentially placed into the feeding trough 311 from the inlet end. When placing the sealing nails 300 into the feeding trough 311, the head of the sealing nails 300 should face the discharge end of the feeding trough 311.

[0043] A fan bracket 15 is provided at the top of the machine base 10. The fan bracket 15 is located behind the vibrator 31 and the nail feeding docking mechanism 40. An ion fan 32 is installed at the top of the fan bracket 15 and faces the vibrator 31. The ion fan 32 is used to blow charged ionized air into the feeding trough 311 of the vibrator 31 to remove static electricity generated between the sealing nail 300 and the vibrator 31. Since the sealing nail 300 is made of rubber and the vibrator 31 is made of metal, static electricity will be generated between the sealing nail 300 and the vibrator 31, causing the sealing nail 300 to adhere to the feed trough 311. The ion fan 32 blows charged air into the feed trough 311 of the vibrator 31. The charged ions in the air neutralize the charged ions of opposite polarity on the sealing nail 300 and the vibrator 31, thereby removing the static electricity generated between the sealing nail 300 and the vibrator 31. This prevents the sealing nail 300 from adhering to the feed trough 311. Under the vibration of the vibrator 31, the sealing nail 300 can move in the feed trough 311 in the direction close to the discharge end of the feed trough 311.

[0044] The nail feeding and docking mechanism 40 includes a docking bracket 41, a docking platform 42, an air pipe 43, and a docking sensor 44. The docking bracket 41 is located at the top of the machine base 10, and the docking platform 42 is located at the top of the docking bracket 41. The air pipe 43 passes through a through hole in the docking platform 42 and is fixedly connected to the through hole. The first end of the air pipe 43 is located above the docking platform 42, and the second end of the air pipe 43 is located inside the discharge end of the feed trough 311 of the vibrator 31. The inner diameter of the air pipe 43 is slightly larger than the outer diameter of the sealing nail 300. The docking sensor 44 is a capacitive sensor. An L-shaped sensor bracket 421 is provided at the bottom of the docking platform 42. The capacitive sensor passes through a through hole in the sensor bracket 421, and one end of the capacitive sensor is in contact with the air pipe 43. The capacitive sensor is used to detect whether there is a sealing nail 300 at the position corresponding to the capacitive sensor inside the air pipe 43. In practical applications, as the sealing nail 300 moves along the direction close to the discharge end of the feeding trough 311, under the vibration of the vibrator 31, the first sealing nail 300 in the feeding trough 311 can enter the air pipe 43 through the second end of the air pipe 43. Under the continuous vibration of the vibrator 31, the second sealing nail 300 in the feeding trough 311 can enter the air pipe 43 through the second end of the air pipe 43, and push the first sealing nail 300 to move along the direction close to the first end of the air pipe 43 in the air pipe 43. This process is repeated to allow multiple sealing nails 300 to be sequentially fed into the air pipe 43 until a capacitive sensor can detect that there is a sealing nail 300 at the position corresponding to the capacitive sensor in the air pipe 43. In this way, the sealing nail 300 is sent to the nail feeding docking mechanism 40. If the capacitive sensor does not detect the sealing nail 300, the vibrator 31 is activated to vibrate until the sealing nail 300 is detected at the position corresponding to the capacitive sensor in the trachea 43. This allows the pre-pressing nail suction mechanism 50 to extract the sealing nail 300 from the first end of the trachea 43.

[0045] Combination Figure 10 and Figure 11As shown, the pre-pressed nail suction mechanism 50 includes a nail suction seat 51, a nail suction connecting plate 52, a nail suction mounting plate 53, a hollow nail suction nozzle 54, and a nail suction cylinder 55. The nail suction seat 51 is located on the side of the linear module 71 of the drive mechanism 70 near the battery replacement fixture 20 and the nail feeding docking mechanism 40. The nail suction connecting plate 52 is slidably located on the side of the nail suction seat 51 away from the drive mechanism 70, and part of the nail suction connecting plate 52 protrudes from the bottom end of the nail suction seat 51. Specifically, a slider 511 is provided on the side of the nail suction seat 51 away from the drive mechanism 70, and a slide rail 512 is provided on the side of the nail suction connecting plate 52 near the nail suction seat 51. The length direction of the slide rail 512 is the same as the height direction of the nail suction connecting plate 52, and the slide rail 512 slides in cooperation with the slider 511. The nail suction mounting plate 53 is located at the bottom end of the nail suction connecting plate 52. The suction nozzle 54 is used to pick up the sealant nails 300. The inner diameter of the suction nozzle 54 is smaller than the outer diameter of the sealant nails 300. The suction nozzle 54 is located below the suction nail mounting plate 53. The tail end of the suction nozzle 54 passes through the through hole of the suction nail mounting plate 53 and is set in the mounting hole at the bottom of the suction nail connecting plate 52. A suction nail connector 521 is provided on the side of the suction nail connecting plate 52 away from the suction nail seat 51. The suction nail connecting plate 52 has a suction nail channel, which communicates with the interior of the suction nail connector 521 and the suction nozzle 54. The suction nail connector 521 is used to connect to a suction nail vacuuming device. In practical applications, the suction nail vacuuming device can achieve vacuuming of the interior of the suction nozzle 54 through the suction nail connector 521 and the suction nail channel, thereby enabling the suction nozzle 54 to pick up the sealant nails 300. The nail-suction cylinder 55 is located at the top of the nail-suction seat 51 and behind the nail-suction connecting plate 52. The end of the output shaft of the nail-suction cylinder 55 passes through the through hole of the nail-suction seat 51 and is connected to the nail-suction mounting plate 53. The nail-suction cylinder 55 is used to drive the nail-suction mounting plate 53 to move up and down, thereby driving the nail-suction connecting plate 52 and the nail-suction nozzle 54 to move up and down. When the cylindrical battery 200 is placed on the battery changing fixture 20 and the pre-pressing nail-suction mechanism 50 is located directly above the battery changing fixture 20, the nail-suction nozzle 54 corresponds to the liquid injection port 201 of the cylindrical battery 200. When the pre-pressing nail-suction mechanism 50 is located directly above the nail feeding docking mechanism 40, the nail-suction nozzle 54 corresponds to the first end of the air pipe 43.

[0046] Furthermore, the bottom end of the nail-collecting base 51 is provided with a scale plate 56. A scale 561 is provided on the side of the scale plate 56 away from the helium return nail-driving mechanism 60. A pointer 531 is provided on the side of the nail-collecting mounting plate 53 away from the helium return nail-driving mechanism 60. The pointer 531 is located above the scale 561, and part of the pointer 531 contacts the side of the scale plate 56 away from the helium return nail-driving mechanism 60. The bottom end of the scale plate 56 is provided with a nail-collecting base 57, through which a hydraulic buffer 58 is provided. The up-and-down movement of the nail-collecting mounting plate 53 can drive the pointer 531 to move up and down. The tip of the pointer 531 is used to indicate the scale 561 on the scale plate 56, and the hydraulic buffer 58 provides cushioning and support for the nail-collecting mounting plate 53.

[0047] Combination Figures 10 to 13 As shown, the helium return nailing mechanism 60 includes a first nailing cylinder 61, a nailing connecting plate 62, a second nailing cylinder 63, and a nailing assembly. The first nailing cylinder 61 is located on the side of the linear module 71 of the drive mechanism 70 near the battery replacement fixture 20 and the nail feeding docking mechanism 40. The nailing connecting plate 62 is located on the side of the first nailing cylinder 61 away from the drive mechanism 70. The first nailing cylinder 61 is used to drive the nailing connecting plate 62 to move up and down. The second nailing cylinder 63 is located on the side of the nailing connecting plate 62 away from the first nailing cylinder 61 via a cylinder seat 632. A guide block 631 is provided on the side of the nailing connecting plate 62 away from the first nailing cylinder 61. The guide block 631 is located below the cylinder seat 632, and the output shaft of the second nailing cylinder 63 passes through the through hole of the guide block 631. The guide block 631 guides the extension and retraction of the output shaft of the second nailing cylinder 63.

[0048] The nailing assembly includes a first nailing seat 641, a second nailing seat 642, a nailing pressure block 643, and a T-shaped nailing pressure rod 644. The first nailing seat 641 is located on the side of the nailing connecting plate 62 away from the first nailing cylinder 61, and a portion of the first nailing seat 641 protrudes from the bottom end of the nailing connecting plate 62. The up-and-down movement of the nailing connecting plate 62 can drive the second nailing cylinder 63 and the first nailing seat 641 to move up and down. The first nailing seat 641 has a nailing seat through cavity 6411 extending through its top and bottom ends. The second nailing seat 642 is located at the top of the first nailing seat 641 and below the output shaft of the second nailing cylinder 63. The second nailing seat 642 has a mounting cavity 6421 extending through its bottom end, and the mounting cavity 6421 communicates with the nailing seat through cavity 6411. The top of the second nailing seat 642 is provided with a clearance hole 6422 communicating with the mounting cavity 6421, and the clearance hole 6422 corresponds to the output shaft of the second nailing cylinder 63. A nailing pressure block 643 is located at the bottom end of the first nailing seat 641. The nailing pressure block 643 has a pressure block through cavity 6431 penetrating its top and bottom ends, and the pressure block through cavity 6431 communicates with the nailing seat through cavity 6411. A pressure block sealing ring 6432 is provided at the bottom end of the nailing pressure block 6433, and the interior of the pressure block sealing ring 6432 communicates with the pressure block through cavity 6431. The inner diameter of the pressure block sealing ring 6432 is larger than the inner diameter of the pressure block through cavity 6431. In practical applications, the inner diameter of the pressure block through cavity 6431 is larger than the inner diameter of the liquid injection port 201 of the cylindrical battery 200.

[0049] The top of the nailing block 643 is provided with an annular groove 6433, which surrounds and communicates with the block's through cavity 6431. A nailing channel 6418 is provided within the first nailing seat 641, located on one side of the nailing seat's through cavity 6411 and communicating with the annular groove 6433. A nailing connector 6412 is provided on the side of the first nailing seat 641 away from the nailing connecting plate 62, communicating with the nailing channel 6418. The nailing connector 6412 is used for connection to nailing vacuum equipment and helium filling equipment. The nailing rod 644 is disposed within the mounting cavity 6421, the nailing seat through cavity 6411, and the pressure block through cavity 6431, and is located above the pressure block sealing ring 6432. The top end of the nailing rod 644 corresponds to the clearance hole 6422, and the bottom end of the nailing rod 644 is provided with a pressure head 6441. The end of the pressure head 6441 extends into the pressure block sealing ring 6432. The nailing rod 644 can move up and down relative to the nailing pressure block 643, the first nailing seat 641, and the second nailing seat 642. The pressure head 6441 can move synchronously with the nailing rod 644. When the cylindrical battery 200 is placed in the battery changing fixture 20 and the helium return nailing mechanism 60 is located above the battery changing fixture 20, the pressure head 6441 corresponds to the liquid injection port 201 of the cylindrical battery 200. The up-and-down movement of the first nailing seat 641 can drive the second nailing seat 642, the nailing pressure block 643, the pressure block sealing ring 6432, and the nailing pressure rod 644 to move up and down.

[0050] In this embodiment, the bottom end of the nailing block 643 is provided with a block mounting hole, and the block sealing ring 6432 is disposed in the block mounting hole. A connecting channel 64331 is provided between the bottom of the annular groove 6433 and the block through cavity 6431, so that the annular groove 6433 is connected to the block through cavity 6431 through the connecting channel 64331. The number of connecting channels 64331 can be set according to the actual situation.

[0051] A connecting sleeve 6443 is fitted around the top of the nailing rod 644, and the top of the connecting sleeve 6443 abuts against the top of the mounting cavity 6421. A nailing elastic element 6423, which is a spring, is provided inside the mounting cavity 6421. The nailing elastic element 6423 is arranged around the outer periphery of the nailing rod 644. One end of the nailing elastic element 6423 has a first mounting block 6424, which is connected to the top of the first nailing seat 641. The other end of the nailing elastic element 6423 has a second mounting block 6425, which is connected to the bottom end of the connecting sleeve 6443.

[0052] In this embodiment, the bottom end of the nailing rod 644 is provided with an installation hole, and the pressure head 6441 is disposed in the installation hole.

[0053] The bottom and top ends of the nail-driving cavity 6411 are respectively provided with a T-shaped bottom bushing 6413 and a T-shaped top bushing 6414. The bottom bushing 6413 and the top bushing 6414 are respectively fitted around the outer periphery of the nail-driving pressure rod 644. The bottom end of the bottom bushing 6413 abuts against the top end of the nail-driving pressure block 643, and the top end of the top bushing 6414 abuts against the bottom end of the first mounting block 6424. Both the bottom bushing 6413 and the nail-end bushing 6414 are oil-free bushings. The bottom bushing 6413 and the top bushing 6414 play a sealing role during the process of vacuuming and helium returning to the inside of the cylindrical battery 200 through the helium return nailing mechanism 60. The top of the nailing block 643 is provided with a first mounting groove, which is arranged around the outer periphery of the annular groove 6433. A first sealing ring 6434 is provided inside the first mounting groove, and the first sealing ring 6434 abuts against the bottom end of the first nailing seat 641. The top of the first nailing seat 641 is provided with a second mounting groove. The mounting cavity 6421 and the nailing seat through cavity 6411 are located inside the second mounting groove. A second sealing ring 6417 is provided inside the second mounting groove, and the second sealing ring 6417 abuts against the bottom end of the second nailing seat 642. The first sealing ring 6434 and the second sealing ring 6417 play a sealing role during the process of vacuuming and helium returning inside the cylindrical battery 200 by the helium return nailing mechanism 60.

[0054] With the above structure, in practical application, the pull block 251 is first pushed backward, which moves the two pull rods 253 and the positioning block 252 backward, compressing the fixture elastic element 255. Then, the first cylindrical battery 200 is placed on the top of the placement platform 24, positioned between the two pull rods 253 and in contact with the two inner walls of the V-groove 231. At this time, the positioning block 252 is located behind the first cylindrical battery 200. Then, the pull block 251 is released. Under the reset action of the fixture elastic element 255, the pull block 251 can be moved forward, which in turn moves the two pull rods 253 and the positioning block 252 forward. In this way, the positioning block 252 can fix the first cylindrical battery 200 between the positioning block 252 and the two inner walls of the V-groove 231 to prevent the first cylindrical battery 200 from moving. Figure 5 As shown.

[0055] Then, multiple sealing nails 300 are sequentially placed into the feeding trough 311 of the vibrator 31 from the feed end. The ion fan 32 and vibrator 31 are then started. The ion fan 32 blows charged ionized air into the feeding trough 311 of the vibrator 31, preventing the sealing nails 300 from adhering to the feeding trough 311. The vibration of the vibrator 31 sequentially feeds the multiple sealing nails 300 into the air pipe 43 until the capacitive sensor can detect the sealing nails 300. Then, the drive mechanism 70 drives the pre-compression nail suction mechanism 50 and the helium return nailing mechanism 60 to move to the right until the pre-compression nail suction mechanism 50 is directly above the nail feeding docking mechanism 40, and the helium return nailing mechanism 60 is directly above the battery changing fixture 20. Then, the nail-suction cylinder 55 drives the nail-suction nozzle 54 downward until the head of the nozzle 54 aligns with the first end of the air pipe 43. Then, a vacuum is created inside the nozzle 54 via the nail-suction connector 521 and the nail-suction channel using a nail-suction vacuuming device. Since the nozzle 54 aligns with the first end of the air pipe 43, a vacuum can be created inside the air pipe 43. Under negative pressure, the first sealing nail 300 can be sucked out of the air pipe 43 through the nozzle 54. This achieves the extraction of the sealing nail 300 from the nail feeding and docking mechanism 40. Figure 10 and Figure 11 As shown. Then, the nail suction cylinder 55 drives the nail suction nozzle 54, nail suction mounting plate 53, pointer 531, and the first sealing nail 300 to move upward to the initial position. Then, the drive mechanism 70 drives the pre-compression nail suction mechanism 50 and the helium return nailing mechanism 60 to move to the left until the pre-compression nail suction mechanism 50 is directly above the battery changing fixture 20. Then, the nail suction cylinder 55 drives the nail suction nozzle 54, nail suction mounting plate 53, pointer 531, and the first sealing nail 300 to move downward to pre-compress the first sealing nail 300 into the liquid injection port 201 of the first cylindrical battery 200, so as to partially drive the first sealing nail 300 into the liquid injection port 201 of the first cylindrical battery 200. Then, the vacuum suction device stops the vacuum suction of the nail suction nozzle 54 through the nail suction connector 521 and the nail suction channel. Then, the nail suction cylinder 55 drives the nail suction nozzle 54, nail suction mounting plate 53, and pointer 531 to move upward to the initial position. When the first sealing nail 300 is pre-pressed into the liquid filling port 201 of the first cylindrical battery 200, the tip of the pointer 531 can indicate the scale 561 on the scale plate 56, so that the operator can know the distance the first sealing nail 300 has moved downward, that is, the depth of the first sealing nail 300 pre-pressed into the liquid filling port 201 of the first cylindrical battery 200. At the same time, the suction nail mounting plate 53 abuts against the hydraulic buffer 58, and the hydraulic buffer 58 can provide buffer support for the suction nail mounting plate 53.

[0056] Then, the pre-compression nail suction mechanism 50 and the helium return nailing mechanism 60 are driven to move to the right by the drive mechanism 70 until the helium return nailing mechanism 60 is directly above the battery replacement fixture 20. At this time, the pre-compression nail suction mechanism 50 is directly above the nail feeding docking mechanism 40. In this way, while the helium return nailing mechanism 60 is in operation, the pre-compression nail suction mechanism 50 can pick up the second sealant nail 300 from the nail feeding docking mechanism 40 according to the aforementioned steps. The helium return nailing mechanism 60 operates as follows: First, the first nailing cylinder 61 drives the nailing block 643 and the block sealing ring 6432 to move downwards until the block sealing ring 6432 abuts against the top of the first cylindrical battery 200. At this time, the block sealing ring 6432 surrounds the outer periphery of the liquid injection port 201 of the first cylindrical battery 200, and the head 302 of the first sealing nail 300 is located inside the block sealing ring 6432. The block sealing ring 6432 plays a sealing role, so that the interior of the block sealing ring 6432 can communicate with the liquid injection port 201 of the first cylindrical battery 200 through the recessed groove 303 of the first sealing nail 300. Then, the vacuum is evacuated inside the first cylindrical battery 200 through the nailing joint 6412, nailing channel 6418, annular groove 6433, connecting channel 64331, pressure block through cavity 6431, pressure block sealing ring 6432, the recessed groove 303 of the first sealing nail 300, and the liquid injection port 201. After the vacuum level inside the first cylindrical battery 200 reaches the predetermined value, the vacuum is stopped through the nailing vacuum device through the nailing joint 6412, nailing channel 6418, annular groove 6433, connecting channel 64331, pressure block through cavity 6431, pressure block sealing ring 6432, the recessed groove 303 of the first sealing nail 300, and the liquid injection port 201. Then, helium is filled into the interior of the first cylindrical battery 200 through the helium filling device via the nailing connector 6412, nailing channel 6418, annular groove 6433, connecting channel 64331, pressing block through cavity 6431, the interior of pressing block sealing ring 6432, the recessed groove 303 of the first sealing nail 300, and the liquid injection port 201. By first evacuating the vacuum and then returning helium, the helium content inside the first cylindrical battery 200 can be guaranteed. After a predetermined time has elapsed, the helium filling device stops filling the interior of the first cylindrical battery 200 through the nailing connector 6412, nailing channel 6418, annular groove 6433, connecting channel 64331, pressing block through cavity 6431, the interior of pressing block sealing ring 6432, the recessed groove 303 of the first sealing nail 300, and the liquid injection port 201.Then, the output shaft of the second nailing cylinder 63 extends out. The end of the output shaft of the second nailing cylinder 63 passes through the clearance hole 6422 of the second nailing seat 642 and enters the connecting sleeve 6443, abutting against the top of the nailing rod 644. As the output shaft of the second nailing cylinder 63 continues to extend, it drives the nailing rod 644 downward, which in turn drives the pressure head 6441 downward. When the pressure head 6441 contacts the first sealant nail 300, as the pressure head 6441 continues to move downward, it drives the nailing rod 644 to move downward. The head 6441 can further press the first sealing nail 300 into the liquid injection port 201 of the first cylindrical battery 200, so that the part of the first sealing nail 300 located in the liquid injection port 201 is completely driven into the liquid injection port 201 of the first cylindrical battery 200. During the downward movement of the nailing rod 644, the nailing rod 644 can drive the connecting sleeve 6443 to move downward. The downward movement of the connecting sleeve 6443 can drive the second mounting block 6425 to move downward. Under the pressure of the second mounting block 6425, the nailing elastic element 6423 is compressed. Then, the output shaft of the second nailing cylinder 63 retracts to its initial position. Under the reset action of the nailing elastic element 6423, the connecting sleeve 6443 can be moved upward to its initial position via the second mounting block 6425. This, in turn, can move the nailing pressure rod 644 and the pressure head 6441 upward to their initial positions, thus achieving automatic reset of the nailing pressure rod 644 and the pressure head 6441. Then, the first nailing cylinder 61 drives the nailing pressure block 643 and the pressure block sealing ring 6432 upward to their initial positions, thus completing the nailing operation. Then, the second cylindrical battery 200 is placed in the same manner as described above, and the process is repeated in the same way. This allows for batch nailing.

[0057] This utility model, through the setup of a machine base 10, a battery changing fixture 20, a nail feeding mechanism 30, a nail feeding docking mechanism 40, a pre-press nail suction mechanism 50, a helium return nailing mechanism 60, and a drive mechanism 70, can automatically apply sealant nails 300 to the liquid injection port 201 of a cylindrical battery 200. Compared with the existing technology that uses manual methods, it greatly improves nailing efficiency, reduces labor costs, and enables batch nailing work, thus meeting the needs of users.

[0058] Combination Figure 1 , Figure 2 , Figure 10 and Figure 11As shown, this utility model also includes an eccentric injection port calibration fixture 80. The eccentric injection port calibration fixture 80 is disposed on the side of the linear module 71 of the drive mechanism 70 near the battery changing fixture 20 and the nail feeding and docking mechanism 40, and is located between the helium return nailing mechanism 60 and the pre-press nail suction mechanism 50. The eccentric injection port calibration fixture 80 is located above the battery changing fixture 20 and the nail feeding and docking mechanism 40. The eccentric injection port calibration fixture 80 is used to check the position of the eccentric injection port when the injection port 201 of the cylindrical battery 200 is an eccentric injection port. The linear module 71 of the drive mechanism 70 is used to drive the eccentric injection port calibration fixture 80 to move left and right.

[0059] Specifically, the eccentric injection port calibration fixture 80 includes a fixture base 81 and a calibration rod 82. The fixture base 81 is located on the side of the linear module 71 of the drive mechanism 70 near the battery changing fixture 20 and the nail feeding docking mechanism 40. The calibration rod 82 passes through the through hole of the fixture base 81 and can move up and down and rotate relative to the fixture base 81. The calibration rod 82 corresponds to the nail suction nozzle 54 of the pre-pressing nail suction mechanism 50. The head 82a of the calibration rod 82 is located below the fixture base 81, and the outer diameter of the head 82a of the calibration rod 82 is adapted to the inner diameter of the injection port 201 of the cylindrical battery 200. The outer diameter of the head 82a of the calibration rod 82 is smaller than the outer diameter of the rest of the calibration rod 82. The tail end of the calibration rod 82 is located above the fixture base 81 and a limit rod 821 is vertically installed thereon. The top of the fixture base 81 is provided with a fixture vertical plate 811, which is located behind the calibration rod 82. The top of the fixture vertical plate 811 is provided with a placement groove 8111, and the limit rod 821 rests on the bottom of the placement groove 8111. The bottom of the placement groove 8111 is an arc surface, which matches the outer peripheral surface of the limit rod 821. The bottom end of the fixture base 81 is provided with a fixture linear bearing 83, which is sleeved on the outer periphery of the calibration rod 82.

[0060] In practical applications, when the liquid injection port 201 of the cylindrical battery 200 is an eccentric liquid injection port 201, after the first cylindrical battery 200 is placed in the battery changing fixture 20 and before multiple sealing nails 300 are sequentially placed into the feeding trough 311 from the feed end of the vibrator 31, the first cylindrical battery 200 is rotated so that the position of the eccentric liquid injection port 201 of the first cylindrical battery 200 corresponds to the position of the nail suction nozzle 54 of the pre-pressing nail suction mechanism 50, the position of the pressure head 6441 of the helium return nailing mechanism 60, and the position of the calibration rod 82. The positions of the head 82a correspond to the positions of the eccentric injection port 201, the nail suction nozzle 54, the pressure head 6441, and the head 82a of the calibration rod 82, all located in the same vertical plane. Then, the drive mechanism 70 drives the helium return nailing mechanism 60, the eccentric injection port calibration fixture 80, and the pre-pressure nail suction mechanism 50 to move to the right until the eccentric injection port calibration fixture 80 is positioned above the battery changing fixture 20, aligning the head 82a of the calibration rod 82 with the eccentric injection port 201 of the first cylindrical battery 200. Then, the limiting rod 821 is pulled upwards, allowing the rod to be pulled upwards. Move the calibration rod 82 to separate it from the placement slot 8111. Then rotate the limiting rod 821, for example, by 90 degrees, thereby rotating the calibration rod 82 relative to the tooling linear bearing 83 by for example by 90 degrees, so that the limiting rod 821 is in front of the tooling vertical plate 811. At this time, the tooling vertical plate 811 will not obstruct the limiting rod 821. Then release the limiting rod 821, and the calibration rod 82 can move downward relative to the tooling linear bearing 83 under its own weight. The tooling linear bearing 83 can ensure the linearity of the downward movement of the calibration rod 82. If the head of the calibration rod 82... If the head 82a of the calibration rod 82 can be inserted into the eccentric injection port 201 of the first cylindrical battery 200, then the position of the first cylindrical battery 200 is correct. Then, pull the limiting rod 821 upwards and rotate it so that the limiting rod 821 is above the placement groove 8111. Then, push the limiting rod 821 downwards, thereby moving the calibration rod 82 downwards relative to the tooling linear bearing 83 until the limiting rod 821 is placed back at the bottom of the placement groove 8111. This verifies the position of the eccentric injection port 201 of the first cylindrical battery 200. If the head 82a of the calibration rod 82 cannot be inserted into the eccentric injection port 201 of the first cylindrical battery 200, repeat the above operation until the head 82a of the calibration rod 82 can be inserted into the eccentric injection port 201 of the first cylindrical battery 200. Subsequently, the pre-compression nail suction mechanism 50 is moved above the battery replacement fixture 20 by the drive mechanism 70, and the suction nozzle 54 of the pre-compression nail suction mechanism 50 is aligned with the eccentric liquid injection port 201 of the cylindrical battery 200. The helium return nailing mechanism 60 is moved above the battery replacement fixture 20 by the drive mechanism 70, and the pressure head 6441 of the helium return nailing mechanism 60 is aligned with the eccentric liquid injection port 201 of the cylindrical battery 200.The position of the eccentric injection port 201 of the cylindrical battery 200 is checked by the eccentric injection port calibration fixture 80. This ensures that when the pre-pressing nail suction mechanism 50 is directly above the cylindrical battery 200, the eccentric injection port 201 of the cylindrical battery 200 corresponds to the nail suction nozzle 54 of the pre-pressing nail suction mechanism 50. It also ensures that when the helium return nailing mechanism 60 is directly above the cylindrical battery 200, the eccentric injection port 201 of the cylindrical battery 200 corresponds to the pressure head 6441 of the helium return nailing mechanism 60. This ensures that the nailing operation can be carried out smoothly.

[0061] Furthermore, combined Figure 1 , Figure 2 , Figures 14 to 16 As shown, this utility model also includes a cleaning mechanism 90, which can clean the inner wall of the pressure block sealing ring 6432 and the pressure head 6441 of the helium return and nailing mechanism 60 to prevent electrolyte residue from remaining on the inner wall of the pressure block sealing ring 6432 and the pressure head 6441. During the process of vacuuming the inside of the cylindrical battery 200 through the helium return and nailing mechanism 60, a small amount of electrolyte may be extracted from the inside of the cylindrical battery 200. This extracted electrolyte will remain on the inner wall of the pressure block sealing ring 6432 and the pressure head 6441, so it is necessary to clean the inner wall of the pressure block sealing ring 6432 and the pressure head 6441.

[0062] Specifically, the cleaning mechanism 90 includes a cleaning tank 91, a storage tank 92, and a residual liquid container 93. The cleaning tank 91 is located at the top of the machine base 10. In this embodiment, two L-shaped cleaning supports 911 are respectively provided at both ends of the cleaning tank 91, and the two cleaning supports 911 are located at the top of the machine base 10. The cleaning tank 91 is located to the left of the battery replacement fixture 20 and below the helium return nailing mechanism 60, the pre-pressure nail suction mechanism 50, and the eccentric injection port calibration fixture 80. The top of the cleaning tank 91 is provided with a cleaning chamber 912, the side of the cleaning tank 91 near the drive mechanism 70 is provided with a liquid inlet connector 913, and the bottom of the cleaning tank 91 is provided with a liquid outlet connector 914. Both the liquid inlet connector 913 and the liquid outlet connector 914 are connected to the cleaning chamber 912. The liquid inlet connector 913 is connected to the liquid storage tank 92 via the first pipe 921. A mounting plate 13 is located at the top of the machine base 10, behind the drive mechanism 70. The liquid storage tank 92 is located at one end of the mounting plate 13 and is used to store cleaning fluid, which is a standard cleaning fluid used for cleaning electrolytes. A fluid control two-way valve 922 (see...) is installed on the first pipe 921. Figure 1 and Figure 2The flow rate of the cleaning fluid can be controlled by a fluid control two-way valve 922. The outlet connector 914 is connected to the residual liquid tank 93 via a second pipe. A switch valve is installed on the second pipe. The top of the cleaning tank 91 has a groove 915 and a residual liquid channel 916, which extends to the bottom of the cleaning tank 91. The groove 915 is connected to the cleaning chamber 912 and the residual liquid channel 916. At the bottom of the cleaning tank 91, corresponding to the residual liquid channel 916, a residual liquid connector 917 is provided. The residual liquid connector 917 is connected to the residual liquid channel 916 and, through a third pipe, to the residual liquid tank 93. The residual liquid tank 93 is located behind the machine base 10 and is used to recover the cleaning fluid. In practical applications, the liquid level in the cleaning chamber 912 is lower than the bottom of the groove 915. When the helium return nailing mechanism 60 is directly above the cleaning tank 91, the nailing block 643, the block sealing ring 6432, and the pressure head 6441 correspond to the cleaning chamber 912.

[0063] In this embodiment, the cleaning tank 91 is provided with a first flow channel 9111, the bottom of the cleaning chamber 912 is provided with a second flow channel 9121, the first flow channel 9111 is located below the second flow channel 9121, the inner wall of the first flow channel 9111 is provided with a third flow channel 91111, the first flow channel 9111 is connected to the liquid inlet connector 913, the second flow channel 9121 and the third flow channel 91111 respectively, and the liquid outlet connector 914 is connected to the third flow channel 9122.

[0064] In practical applications, when it is necessary to clean the inner wall of the pressure block sealing ring 6432 and the pressure head 6441 of the helium return nailing mechanism 60, first open the fluid control two-way valve 922, so that a predetermined amount of cleaning fluid is introduced into the cleaning chamber 912 through the storage tank 92 via the first pipe 921, the liquid inlet connector 913, the first flow channel, and the second flow channel. Then close the fluid control two-way valve 922. Then, the drive mechanism 70 drives the helium return nailing mechanism 60 to move directly above the cleaning tank 91. Then, the first nailing cylinder 61 drives the nailing pressure block 643, the pressure block sealing ring 6432, the first nailing seat 641, the second nailing seat 642, the nailing pressure rod 644, and the second nailing cylinder 63 to move downwards until the pressure block sealing ring 6432 and the nailing pressure block 643 are partially located inside the cleaning chamber 912. Figure 1As shown, the cleaning fluid can enter the interior of the pressure block sealing ring 6432 and the pressure block through cavity 6431 at this time. The pressure head 6441 is immersed in the cleaning fluid. After standing for a period of time, the electrolyte on the inner wall of the pressure block sealing ring 6432 and the electrolyte on the pressure head 6441 can be dissolved in the cleaning fluid, thus cleaning the inner wall of the pressure block sealing ring 6432 and the pressure head 6441. Then, the first nailing cylinder 61 drives the nailing pressure block 643, the pressure block sealing ring 6432, the first nailing seat 641, the second nailing seat 642, the nailing rod 644, and the second nailing cylinder 63 to move upward to the initial position and open the switch valve. In this way, the cleaning fluid in the cleaning chamber 912 can enter the residual liquid tank 93 for recycling through the second flow channel, the first flow channel, the liquid outlet connector 914, and the second pipe. During the process of driving the nailing block 643, the block sealing ring 6432, the first nailing seat 641, the second nailing seat 642, the nailing rod 644, and the second nailing cylinder 63 downwards so that the block sealing ring 6432 and the nailing block 643 are partially located in the cleaning chamber 912, the block sealing ring 6432 and the nailing block 643 will cause the liquid level in the cleaning chamber 912 to rise. When the liquid level corresponds to the groove 915 at the top of the cleaning tank 91, the cleaning fluid will flow into the residual liquid channel 916 through the groove 915, and then enter the residual liquid tank 93 through the residual liquid connector 917 and the third pipe for recycling. The groove 915, the residual liquid channel 916, the residual liquid connector 917, the third pipe and the residual liquid tank 93 can prevent the cleaning fluid from overflowing to the outside of the cleaning tank 91, thereby preventing the cleaning fluid from dripping onto the top of the machine 10 and ensuring that the machine 10 is clean.

[0065] The storage tank 92 is equipped with a liquid level sensor 923 (see Figure 1 The liquid level sensor 923 is used to detect the liquid level in the storage tank 92 so that when the liquid level is lower than a predetermined height, the operator can promptly add cleaning fluid to the storage tank 92. The liquid level sensor 923 is preferably an ultrasonic sensor. The storage tank 92 includes a tank body and a lid that closes to the open end of the tank body. The tank body is used to hold the cleaning fluid, and the liquid level sensor 923 is mounted on the tank body. By opening the lid, cleaning fluid can be added to the tank.

[0066] Furthermore, the top of the mounting plate 13 of the machine base 10 is equipped with an indicator light 14. The indicator light 14 is used to illuminate after the nailing operation is completed to remind the operator. The indicator light 14 can also be used to remind the operator in abnormal situations such as the nail suction nozzle 54 of the pre-press nail suction mechanism 50 failing to pick up the sealant nail 300, or the vacuum degree failing to reach the predetermined value when the helium return nailing mechanism 60 evacuates the internal vacuum of the cylindrical battery 200. The indicator light 14 is, for example, a three-color indicator light.

[0067] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A cylindrical battery helium reversion nail-driving test machine, characterized in that, The system includes a machine base, a battery replacement fixture, a nail feeding mechanism, a nail feeding and docking mechanism, a pre-compression nail suction mechanism, a helium return nailing mechanism, and a drive mechanism. The battery replacement fixture, nail feeding and docking mechanism, and nail feeding mechanism are sequentially arranged from left to right at the top of the machine base. The drive mechanism is located at the top of the machine base and behind the battery replacement fixture and nail feeding and docking mechanism. The helium return nailing mechanism and the pre-compression nail suction mechanism are sequentially arranged from left to right on the side of the drive mechanism closest to the battery replacement fixture and nail feeding and docking mechanism, and are both located above the battery replacement fixture and nail feeding and docking mechanism. The battery replacement fixture is used to hold cylindrical batteries, and the nail feeding mechanism is used to feed sealant nails to the nail feeding and docking mechanism. The driving mechanism is used to drive the pre-pressed nail suction mechanism and the helium return nailing mechanism to move left and right. The pre-pressed nail suction mechanism is used to pick up the sealing nail from the nail feeding and docking mechanism and to pre-press the picked-up sealing nail into the electrolyte inlet of the cylindrical battery, so as to drive part of the sealing nail into the electrolyte inlet of the cylindrical battery. The helium return nailing mechanism is used to evacuate the inside of the cylindrical battery through the recessed groove of the pre-pressed sealing nail in the electrolyte inlet and the electrolyte inlet of the cylindrical battery, return helium, and after the helium return is completed, further press the pre-pressed sealing nail into the electrolyte inlet of the cylindrical battery, so as to drive all the part of the sealing nail located outside the electrolyte inlet into the electrolyte inlet of the cylindrical battery.

2. The cylindrical battery helium reversion nail-driving test machine according to claim 1, characterized in that, During the process of driving the pre-pressed nail suction mechanism and the helium return nailing mechanism to move through the driving mechanism, when the pre-pressed nail suction mechanism is located directly above the nail feeding docking mechanism, the helium return nailing mechanism is located directly above the battery replacement fixture.

3. The cylindrical battery helium reversion nail-driving test machine according to claim 1, characterized in that, The battery replacement fixture includes a fixture base plate, a fixture mounting component, a placement platform, and a clamp. The top of the machine base is provided with a fixture mounting plate, the fixture base plate is located at the top of the fixture mounting plate, the fixture mounting component is located at the top of the fixture base plate, a V-shaped groove is provided on the side of the fixture mounting component near the drive mechanism, the placement platform is located at the top of the fixture base plate and behind the fixture mounting component, and part of the placement platform extends into the V-shaped groove. The fixture includes a pulling block, a positioning block, and two pull rods. The pulling block and the positioning block are arranged opposite each other. The fixture mounting component is located between the pulling block and the positioning block. The two pull rods are respectively arranged through two through holes of the fixture mounting component. One end of each pull rod is connected to the pulling block, and the other end of each pull rod is connected to the positioning block. The V-groove is located between the two pull rods. A fixture linear bearing is provided in the through hole. The fixture linear bearing is sleeved on the outer circumference of the corresponding pull rod. A fixture elastic element is provided between the fixture linear bearing and the pulling block. The fixture elastic element is arranged around the outer circumference of the corresponding pull rod. One end of the fixture elastic element is connected to the pulling block, and the other end of the fixture elastic element is connected to the fixture linear bearing.

4. The cylindrical battery helium reversion nail-driving test machine according to claim 1, characterized in that, The nail feeding mechanism includes a vibrator, which is disposed at the top of the machine base, with the discharge end of the feed trough of the vibrator facing the nail feeding docking mechanism. The nail feeding and docking mechanism includes a docking bracket, a docking platform, and an air pipe. The docking bracket is located at the top of the machine base, the docking platform is located at the top of the docking bracket, and the air pipe passes through the through hole of the docking platform and is fixedly connected to the through hole. The first end of the air pipe is located above the docking platform, and the second end of the air pipe is located inside the discharge end of the feed trough of the vibrator.

5. The cylindrical battery helium reversion nail-driving test machine according to claim 4, characterized in that, The nail feeding mechanism also includes an ion fan. The top of the machine base is provided with a fan bracket, which is located behind the vibrator and the nail feeding docking mechanism. The ion fan is set at the top of the fan bracket and faces the vibrator. The ion fan is used to blow charged ionized air into the feeding trough of the vibrator to remove static electricity generated between the sealing nail and the vibrator.

6. The cylindrical battery helium reversion nail-driving test machine according to claim 4, characterized in that, The nail feeding and docking mechanism also includes a docking sensor, which is a capacitive sensor. The bottom of the docking platform is provided with a sensor bracket. The capacitive sensor is installed through the through hole of the sensor bracket, and one end of the capacitive sensor is in contact with the air tube.

7. The cylindrical battery helium reversion nail-driving test machine according to claim 4, characterized in that, The pre-compression nail suction mechanism includes a nail suction seat, a nail suction connecting plate, a nail suction mounting plate, a hollow nail suction nozzle, and a nail suction cylinder. The nail suction seat is located on the side of the drive mechanism near the battery replacement fixture and the nail feeding docking mechanism. The nail suction connecting plate is slidably disposed on the side of the nail suction seat away from the drive mechanism, with a portion of the connecting plate protruding from the bottom end of the nail suction seat. The nail suction mounting plate is located at the bottom end of the connecting plate. The nail suction nozzle is located below the mounting plate, with its tail end passing through a through hole in the mounting plate and positioned within a mounting hole at the bottom end of the connecting plate. A nail suction connector is provided on the side of the connecting plate away from the nail suction seat. The nail suction connecting plate is provided with a nail suction channel, which is connected to the interior of the nail suction connector and the nail suction nozzle. The nail suction cylinder is located at the top of the nail suction seat. The end of the output shaft of the nail suction cylinder passes through the through hole of the nail suction seat and is connected to the nail suction mounting plate. The nail suction cylinder is used to drive the nail suction mounting plate to move up and down. When a cylindrical battery is placed on the battery changing fixture and the pre-compression nail suction mechanism is located directly above the battery changing fixture, the nail suction nozzle corresponds to the liquid injection port of the cylindrical battery. When the pre-compression nail suction mechanism is located directly above the nail feeding docking mechanism, the nail suction nozzle corresponds to the first end of the air pipe.

8. The cylindrical battery helium reversion nail-driving test machine according to claim 1, characterized in that, The helium return nailing mechanism includes a first nailing cylinder, a nailing connecting plate, a second nailing cylinder, and a nailing assembly; the first nailing cylinder is located on the side of the drive mechanism near the battery replacement fixture and the nail feeding docking mechanism, the nailing connecting plate is located on the side of the first nailing cylinder away from the drive mechanism, the first nailing cylinder is used to drive the nailing connecting plate to move up and down, and the second nailing cylinder is located on the side of the nailing connecting plate away from the first nailing cylinder; The nailing assembly includes a first nailing seat, a second nailing seat, a nailing pressure block, and a nailing pressure rod. The first nailing seat is located on the side of the nailing connecting plate away from the first nailing cylinder, and the first nailing seat portion protrudes from the bottom end of the nailing connecting plate. The first nailing seat has a nailing seat through cavity penetrating its top and bottom ends. The second nailing seat is located at the top end of the first nailing seat and below the output shaft of the second nailing cylinder. The second nailing seat has a mounting cavity penetrating its bottom end, and the mounting cavity communicates with the nailing seat through cavity. The top end of the second nailing seat has a clearance hole communicating with the mounting cavity, and the clearance hole corresponds to the output shaft of the second nailing cylinder. The nailing pressure block is located at the bottom end of the first nailing seat. The nailing pressure block has a pressure block through cavity penetrating its top and bottom ends, and the pressure block through cavity communicates with the nailing seat through cavity. The bottom end of the nailing pressure block has a pressure block sealing ring, and the interior of the pressure block sealing ring communicates with the pressure block through cavity. The inner diameter of the sealing ring of the pressure block is larger than the inner diameter of the through cavity of the pressure block. The top of the nailing pressure block has an annular groove that surrounds and communicates with the through cavity of the pressure block. The first nailing seat has a nailing channel that communicates with the annular groove. A nailing connector is located on the side of the first nailing seat away from the nailing connecting plate, and the nailing connector communicates with the nailing channel. The nailing rod is disposed within the mounting cavity, the through cavity of the nailing seat, and the through cavity of the pressure block, and is located within these three locations. Above the sealing ring of the pressure block, the top end of the nailing rod corresponds to the clearance hole, and the bottom end of the nailing rod is provided with a pressure head. The end of the pressure head extends into the sealing ring of the pressure block. The nailing rod can move up and down relative to the nailing block, the first nailing seat and the second nailing seat. The pressure head can move synchronously with the nailing rod. When a cylindrical battery is placed in the battery changing fixture and the helium return nailing mechanism is located above the battery changing fixture, the pressure head corresponds to the liquid injection port of the cylindrical battery.

9. The cylindrical battery helium reversion nail-driving test machine according to claim 8, characterized in that, A connecting sleeve is fitted around the top of the nailing rod, and the top of the connecting sleeve abuts against the top of the mounting cavity. A nailing elastic element is provided inside the mounting cavity, and the nailing elastic element is arranged around the outer periphery of the nailing rod. One end of the nailing elastic element is provided with a first mounting block, which is connected to the top of the first nailing seat. The other end of the nailing elastic element is provided with a second mounting block, which is connected to the bottom end of the connecting sleeve. The first mounting block and the second mounting block are respectively fitted around the outer periphery of the nailing rod.

10. The cylindrical battery helium reversion nail-driving test machine according to claim 9, characterized in that, The bottom end and top end of the through cavity of the nailing seat are respectively provided with a bottom end bushing and a top end bushing. The bottom end bushing and the top end bushing are respectively sleeved on the outer periphery of the nailing pressure rod. The bottom end of the bottom end bushing abuts against the top end of the nailing pressure block, and the top end of the top end bushing abuts against the bottom end of the first mounting block.

11. The cylindrical battery helium reversion nail-driving test machine according to claim 1, characterized in that, The cylindrical battery helium return nailing test machine also includes an eccentric injection port calibration fixture. The eccentric injection port calibration fixture is disposed on the side of the drive mechanism near the battery changing fixture and the nail feeding and docking mechanism, and is located between the helium return nailing mechanism and the pre-press nail suction mechanism. The eccentric injection port calibration fixture is located above the battery changing fixture and the nail feeding and docking mechanism. The eccentric injection port calibration fixture is used to check the position of the eccentric injection port when the injection port of the cylindrical battery is an eccentric injection port. The drive mechanism is used to drive the eccentric injection port calibration fixture to move left and right.

12. The cylindrical battery helium reversion nail-driving test machine according to claim 11, characterized in that, The eccentric injection port calibration fixture includes a fixture base and a calibration rod. The fixture base is located on the side of the drive mechanism near the battery replacement fixture and the nail feeding and docking mechanism. The calibration rod passes through a through hole in the fixture base and can move up and down and rotate relative to the through hole. The calibration rod corresponds to the nail suction nozzle of the pre-pressed nail suction mechanism. The head of the calibration rod is located below the fixture base, and the tail end of the calibration rod is located above the fixture base and has a vertical limit rod. The top of the fixture base has a fixture vertical plate, which is located behind the calibration rod and has a placement groove at its top. The limit rod rests on the bottom of the placement groove. The bottom of the fixture base has a fixture linear bearing, which is sleeved on the outer periphery of the calibration rod.

13. The cylindrical battery helium reversion nail-driving test machine according to claim 11, characterized in that, The driving mechanism includes a linear module. The top of the machine base is provided with a module support behind the battery replacement fixture and the nail feeding and docking mechanism. The linear module is located on the side of the module support near the battery replacement fixture and the nail feeding and docking mechanism. The helium return nailing mechanism, the eccentric liquid injection port calibration fixture, and the pre-pressure nail suction mechanism are all located on the side of the linear module near the battery replacement fixture and the nail feeding and docking mechanism. The linear module is used to drive the helium return nailing mechanism, the eccentric liquid injection port calibration fixture, and the pre-pressure nail suction mechanism to move left and right.

14. The cylindrical battery helium reversion nail tester according to claim 8, characterized in that, The cylindrical battery helium return nailing test machine also includes a cleaning mechanism, which comprises a cleaning tank, a storage tank, and a residual liquid bucket. The cleaning tank is located at the top of the machine base, to the left of the battery replacement fixture and below the helium return nailing mechanism. The top of the cleaning tank has a cleaning chamber, one side has an inlet connector, and the bottom has an outlet connector. Both the inlet and outlet connectors are connected to the cleaning chamber. The inlet connector is connected to the storage tank via a first pipe, and a two-way fluid control valve is installed on the first pipe. The liquid outlet connector is connected to the residual liquid tank via a second pipe. A switch valve is provided on the second pipe. The top of the cleaning tank is provided with a groove and a residual liquid channel. The residual liquid channel extends to the bottom of the cleaning tank. The groove is connected to the cleaning chamber and the residual liquid channel respectively. The bottom of the cleaning tank is provided with a residual liquid connector at the position corresponding to the residual liquid channel. The residual liquid connector is connected to the residual liquid channel and is connected to the residual liquid tank via a third pipe. When the helium return nailing mechanism is located directly above the cleaning tank, the nailing block, the block sealing ring, and the pressure head are aligned with the cleaning chamber.

15. The cylindrical battery helium reversion nail-driving test machine according to claim 14, characterized in that, The storage tank is equipped with a liquid level sensor, which is used to detect the height of the liquid level in the storage tank.

16. The cylindrical battery helium reversion nail-driving test machine according to claim 1, characterized in that, The machine is equipped with an indicator light at the top.

Images