Automatic detection and cleaning operation line and method for lithium battery liquid injection port

Abstract

The invention discloses a lithium battery liquid injection port automatic detection and cleaning operation line and method, and relates to the technical field of lithium battery liquid injection port glue nail detection and cleaning automation equipment, and the lithium battery liquid injection port automatic detection and cleaning operation line comprises a feeding assembly line, an intelligent 3D camera, a cleaning assembly, a transfer wiping assembly, a discharging assembly line, a blow-drying assembly, an outer guardrail and the like; a supplied material assembly line, a transferring and wiping assembly and a discharging assembly line are arranged according to a lithium battery supplied material operation process, and all the assemblies are matched with one another to jointly complete the operation processes such as lithium battery glue nail detection, lithium battery liquid injection opening cleaning and blow-drying operation. By means of lithium battery rubber nail detection and liquid injection opening automatic wiping operation, lithium battery rubber nails are automatically detected, the detection accuracy is high, the efficiency is high, NG products are effectively removed, the liquid injection opening is automatically wiped and dried, cleaning and drying are thorough, the lithium battery production quality and efficiency are improved, the automation level of lithium battery operation is improved, and the production cost is reduced. The production takt is improved, and manpower occupation is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automated equipment for detecting, cleaning and wiping plastic nails at a lithium battery filling port, and in particular to an automatic detection and cleaning operation line and method for a lithium battery filling port. Background Art

[0002] With the continuous development of new energy vehicles, the production demand and safety quality of lithium batteries are increasing. In the production process of lithium batteries, after the battery cell is encapsulated into the battery shell and the electrolyte is injected, the injection hole needs to be blocked with glue nails, and the sealing nails are welded with lasers to achieve isolation between the inside of the battery and the external environment. After the injection is completed, the remaining electrolyte crystallization around the injection hole is easy to cause poor laser welding and needs to be cleaned.

[0003] The existing lithium battery glue nail inspection and liquid injection port wiping are often handled manually, with a poor degree of automation. At the same time, manual visual inspection of the glue nails is prone to cause NG products to flow out. After the liquid injection is completed, the liquid injection port is often wiped manually. The manual wiping work efficiency is low. In addition, during mass production, the labor cost increases and manual wiping is prone to omissions, affecting the subsequent welding quality.

[0004] Patent document with application number 202320019119.8 discloses a battery injection hole glue nail detection device, including: a base, a glue nail detection mechanism, a scanning mechanism and a dripping mechanism. While the scanning mechanism scans and identifies the battery, the dripping mechanism is used to drip around the glue nail of the battery, so as to pre-dissolve the solid residue around the injection hole before the battery enters the cleaning process, so that the residue can be cleaned and removed more easily. However, the solution also has the following problems: single function, unable to perform automatic cleaning and drying operations, and low degree of automation. Summary of the invention

[0005] In view of the above-mentioned problems, the purpose of the present invention is to provide an automatic detection and cleaning operation line and method for lithium battery filling ports, so as to detect lithium battery glue nails, transfer NG products, clean and dry and transfer OK products, and realize the automated operation of lithium battery glue nail detection and filling port wiping.

[0006] The purpose of the present invention can be achieved by the following technical solution: A lithium battery filling port automatic detection and cleaning operation line, comprising:

[0007] Incoming material assembly line, used to transport lithium batteries after installing plastic nails;

[0008] The intelligent 3D camera is fixed on the incoming material assembly line to detect the glue nails of the lithium batteries conveyed by the incoming material assembly line;

[0009] Cleaning components, cleaning the lithium batteries that have passed the inspection on the incoming material assembly line;

[0010] Transfer and wipe components, transfer unqualified lithium batteries to the NG area, wipe the bottom of qualified lithium batteries after cleaning, and transfer them to the discharge line;

[0011] Blow dry components and blow dry the lithium batteries on the discharge line.

[0012] As a further solution of the present invention, it also includes:

[0013] External guardrails are used to protect the working line and ensure working safety.

[0014] As a further solution of the present invention, the cleaning component includes a cleaning robot, a detachable scrubbing head is connected to the end of the clamping arm of the cleaning robot, and a cleaning tank is provided on the side of the incoming material assembly line, and the cleaning tank is used to clean the scrubbing head.

[0015] As a further solution of the present invention, the transport and wiping assembly includes a transport robot, and the end of the clamping arm of the transport robot is connected to four groups of driving cylinders, and the driving cylinders are used to clamp and transport lithium batteries.

[0016] As a further solution of the present invention, the drying component includes a blowing pipe, and the blowing pipe is used to blow dry the top surface of the lithium battery.

[0017] A method for automatically detecting and cleaning the lithium battery filling port of the above-mentioned operation line, the method steps are as follows:

[0018] S1, convey lithium batteries through the flow channel of the incoming material assembly line;

[0019] S2. Conduct glue nail inspection on lithium batteries on the incoming material assembly line;

[0020] S3. Transfer the unqualified lithium batteries to the NG area, and perform immersion cleaning on the qualified lithium batteries;

[0021] S4, after wiping the bottom of the lithium battery that has passed the inspection and cleaning, transfer it to the discharge line;

[0022] S5. Blow dry and wipe the lithium battery on the discharging line and transport it to the next process.

[0023] As a further solution of the present invention, the qualified lithium battery is subjected to immersion cleaning in said S2, comprising the steps of:

[0024] S21, using a blocking cylinder to extend a blocking plate to block the lithium batteries on the incoming material assembly line;

[0025] S22, using a dripping tube to drip liquid into the blocked lithium battery;

[0026] S23, the blocking cylinder shrinks to release the soaked lithium battery;

[0027] S24. Using a cleaning robot to clean the released lithium batteries.

[0028] As a further solution of the present invention, the bottom of the lithium battery after being cleaned and tested as qualified is wiped and then transferred to the discharge line in S4, which includes the steps of:

[0029] S41, the transfer robot grabs the lithium battery pack to the wiping belt and hovers there, and uses the wiping belt to roll and wipe the bottom of the lithium battery;

[0030] S42, the transfer robot grabs the lithium battery group and transfers it to the variable distance area, and uses the distance adjustment component to adjust the distance between a group of lithium batteries;

[0031] S43, push the lithium battery pack with adjusted spacing onto the discharging assembly line.

[0032] As a further solution of the present invention, the step of drying and wiping the lithium battery on the discharge line in S5 comprises the following steps:

[0033] S51, blocking the lithium battery pack on the discharging line;

[0034] S52, performing a blowing operation on the intercepted lithium battery pack to dry the lithium battery;

[0035] S53, release the dried lithium battery pack on the discharging line.

[0036] Beneficial effects of the present invention:

[0037] 1. The present invention uses a lithium battery glue nail detection and liquid injection port automatic wiping operation line to automatically detect lithium battery glue nails and exclude NG products with high detection accuracy and efficiency. The liquid injection port is automatically wiped and dried, and the cleaning and drying are thorough, thereby improving the quality and efficiency of lithium battery production, improving the automation level of lithium battery operation generation, increasing production rhythm, and greatly reducing manpower occupation.

[0038] 2. The present invention detects the presence and length of glue nails by using different light beams emitted by the 3D smart camera laser transmitter, thereby accurately judging whether the current lithium battery is NG, replacing manual visual inspection, with high detection accuracy, and reducing poor welding caused by unqualified glue nails.

[0039] 3. In the scrubbing mechanism of the present invention, the dropper drips the DMC solution onto the injection port, and the solution is pre-wetted to dissolve the solution in advance, thereby effectively removing the solid residue and making the residue easier to be cleaned and removed. The cleaning robot is used, which has strong operation flexibility, and the injection port is cleaned thoroughly and efficiently, thereby improving the degree of automation of cleaning.

[0040] 4. The present invention adopts a transfer robot to participate in the wiping and transfer of lithium batteries, which effectively connects the incoming material assembly line and the outgoing material assembly line, has a fast response speed, makes the program flow logic smoother, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the structure of the automatic detection and cleaning line for the lithium battery filling port of the present invention;

[0042] Figure 2 This is a schematic diagram of the structure of the intelligent 3D camera and its configuration components of the present invention;

[0043] Figure 3 It is a schematic diagram of the structure of the transport wiping component and the configuration component of the present invention;

[0044] Figure 4 It is a schematic diagram of the structure of the drying component and the configuration component of the present invention;

[0045] Figure 5 The present invention is a schematic flow chart of the automatic detection and cleaning method of the lithium battery filling port.

[0046] 100. Incoming material assembly line;

[0047] 200, intelligent 3D camera; 210, camera bracket; 220, module mounting plate;

[0048] 300, cleaning assembly; 310, cleaning robot; 320, scrubbing head; 330, cleaning tank; 340, blocking frame; 350, blocking cylinder; 351, blocking plate; 360, drip tube;

[0049] 400, transfer and wiping assembly; 410, transfer robot; 411, driving cylinder; 412, gripper; 420, distance-adjusting cylinder; 430, wiping assembly; 431, wiping belt; 432, wiping bracket; 433, roller device; 441, pushing cylinder; 442, distance-adjusting base;

[0050] 500, blow-drying assembly; 510, blow pipe; 520, lifting cylinder; 530, arresting frame; 540, blow pipe frame;

[0051] 600, discharging line;

[0052] 700. External guardrail. DETAILED DESCRIPTION

[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0054] like Figure 1 As shown, the present invention discloses an automatic detection and cleaning operation line for a lithium battery filling port, comprising an incoming material assembly line 100, an intelligent 3D camera 200, a cleaning component 300, a transfer and wiping component 400, a discharging material assembly line 600, a drying component 500 and an outer guardrail 700, etc.

[0055] Among them, according to the lithium battery incoming material operation process, the incoming material assembly line 100, the transfer wiping component 400 and the discharging assembly line 600 are arranged in sequence, and an external guardrail 700 is arranged on the periphery. The intelligent 3D camera 200 is installed on the incoming material assembly line 100, the cleaning component 300 is installed on the side of the incoming material assembly line 100, the transfer wiping component 400 is installed between the incoming material assembly line 100 and the discharging assembly line 600, and the blow-drying component 500 is installed on the discharging assembly line 600. The components cooperate with each other to complete the operation processes such as lithium battery glue nail detection, lithium battery filling port cleaning and blow-drying operations.

[0056] Specifically, Figure 2 As shown, the incoming material assembly line 100 can be in the form of a plate chain line, with a large pitch special bent plate chain as the transmission medium, driving the plastic panel to run back and forth to realize the lithium battery assembly line operation; a camera bracket 210 is installed on the incoming material assembly line 100, and the camera bracket 210 is fixed with a module mounting plate 220, and the smart 3D camera 200 is fixed on the module mounting plate 220, and the lens range of the smart 3D camera 200 covers the lithium battery glue nails.

[0057] The 3D smart camera can emit laser through the laser transmitter, and the laser will form a straight line. When the laser is projected onto the surface of the nail, it will form a reflection. Under the design of the optical system, the reflected light will be captured by the lens and finally reflected through the lens to the photosensitive chip. The photosensitive chip selected is a high-precision CMOS chip.

[0058] The intelligent 3D camera 200 detects the length of the lithium battery nails and the presence of the nails through photoelectric sensing, and determines whether it is a NG product based on the process standards. Once it is determined to be a NG product, the robot installed in the reserved position can be used to transfer the unqualified lithium battery NG products to the NG product area for NG product process processing.

[0059] The cleaning component 300 includes an infiltration component and a cleaning robot 310, wherein the infiltration component includes a blocking cylinder 350 and a drip tube 360, a blocking frame 340 is installed on the incoming material assembly line 100, the blocking cylinder 350 is fixed on the blocking frame 340, and the telescopic rod of the blocking cylinder 350 is connected to the blocking plate 351. The blocking cylinder 350 is telescopically operated to achieve blocking or releasing of lithium batteries.

[0060] For lithium batteries that have passed the inspection, the blocking cylinder 350 extends out of the blocking plate 351 to block the lithium batteries. The blocking frame 340 is also connected to a dripping tube 360, which is located above the lithium battery injection port. The dripping tube 360 ​​drips out the DMC solution to wet the area near the lithium battery injection port, which can facilitate subsequent cleaning operations. After soaking, the blocking cylinder 350 retracts the blocking plate 351 to release the lithium battery, and the lithium battery enters the cleaning area.

[0061] A detachable scrubbing head 320 is installed at the front end of the cleaning robot 310. The cleaning robot 310 uses the scrubbing head 320 to clean the lithium batteries released after being soaked. The cleaning robot 310 can use a three-axis or four-axis robotic arm. The cleaning robot 310 is installed on a support on the side of the assembly line. A cleaning tank 330 is provided on one side of the incoming material assembly line 100. The cleaning tank 330 can be fixedly installed on the bracket of the incoming material assembly line 100. The wiping position of the liquid injection port is located in the working area of ​​the cleaning robot 310. The cleaning robot 310 is used to perform cleaning and wiping operations. The scrubbing head 320 is immersed in the cleaning tank 330 when idle, and the scrubbing head 320 can be washed and cleaned.

[0062] After cleaning, lithium batteries enter the transfer area and are grouped and transferred, such as Figure 3 As shown, a group of four can be used.

[0063] After the lithium battery is cleaned and enters the transfer area, the surface and bottom of the lithium battery are stained with a lot of cleaning liquid. The lithium battery needs to be dried. First, the bottom of the lithium battery is wiped, and then it is transferred. The transfer wiping component 400 can be used to complete it. Specifically:

[0064] The transport wiping assembly 400 includes a wiping belt 431, a transport robot 410 and a distance adjustment assembly, etc., wherein:

[0065] The transfer robot 410 can be a three-axis or four-axis mechanical arm, and the transfer robot 410 can be installed on a support on the side of the assembly line, such as Figure 3 As shown, the end of the clamping arm of the transfer robot 410 is connected to the driving cylinder 411 through a transmission mechanism. The driving cylinder 411 is composed of four groups corresponding to one lithium battery pack. The clamping claw 412 of the driving cylinder 411 is composed of two clamping arms. The clamping claw 412 is made of insulating rubber material to avoid scratches on the surface of the lithium battery during operation. The clamping arms are moved relatively by the movement of the cylinder to achieve the clamping of the lithium battery, so that the driving cylinder 411 can be used to complete the clamping and transportation of the lithium battery pack.

[0066] A wiping assembly 430 is arranged between the incoming material assembly line 100 and the outgoing material assembly line 600. The wiping assembly 430 includes a wiping bracket 432, a wiping belt 431 and a roller device 433. The roller device 433 is installed on the wiping bracket 432. The wiping belt 431 is a roller unwinding type. The roller device 433 is used to drive the wiping belt 431 to roll, which is also convenient for regular replacement of the wiping cloth in the later stage. The wiping belt 431 can be made of absorbent cloth.

[0067] The wiping bracket 432 is also connected to a distance adjustment component, which includes a distance-changing slider, a distance-adjusting cylinder 420 , a pushing cylinder 441 , a distance-changing base 442 , and the like.

[0068] When in use, the transfer robot 410 first grabs the lithium battery pack and hovers at the wiping belt 431, and uses the wiping belt 431 to roll and wipe the bottom of the lithium battery to remove the cleaning liquid at the bottom of the lithium battery.

[0069] The transfer robot 410 then continues to grab the lithium battery pack and transfer it to the variable distance area, placing each lithium battery in a variable distance base 442. Because the spacing between the lithium batteries in the lithium battery pack is inconsistent with the spacing required by the blow-drying component 500 on the discharge assembly line 600, the spacing of the lithium batteries needs to be adjusted.

[0070] Specifically, the pitch of the pitch-variable base 442 is adjusted by using a pitch-variable slider, which adopts synchronous pitch variation. The pitch-variable slider is driven by the pitch-adjusting cylinder 420 to control the active shaft to rotate forward and reverse to control multiple pitch-variable sliders to make linear motion on the guide rail, thereby realizing the adjustment of the spacing between the lithium batteries in the lithium battery pack.

[0071] After the spacing adjustment is completed, the pitch-variable base 442 is pushed by the pushing cylinder 441 to push a group of lithium batteries onto the discharging assembly line 600 and separate them by the partition fence.

[0072] like Figure 4 As shown, the blow-drying component 500 is arranged on the discharging assembly line 600. Specifically, the blow-drying component 500 includes components such as a blocking frame 530, a blowing pipe frame 540 and a blowing pipe 510, wherein the blocking frame 530 is connected to a lifting cylinder 520. By raising or lowering the blocking frame 530, the lithium battery pack on the discharging assembly line 600 can be released or blocked.

[0073] The blowing pipe rack 540 is connected to the bracket of the discharging assembly line 600, and the blowing pipe 510 is installed on the top of the blowing pipe rack 540. Each blowing pipe 510 is aligned with the top surface of a lithium battery to dry the cleaning liquid on the surface of the lithium battery by blowing.

[0074] After the drying operation is completed, the arresting frame 530 is raised to release the lithium battery pack, which then proceeds to the next process.

[0075] Preferably, the cleaning robot 310 and the transfer robot 410 may be collaborative robots. Compared with traditional industrial robots, collaborative robots have flexible motion control capabilities, precise position control, and higher safety features.

[0076] Preferably, a photoelectric sensor can be arranged on the assembly line, and a reflective photoelectric sensor is selected as the photoelectric sensor. The reflective photoelectric sensor can be used to detect whether the lithium battery on the production line exists or is in the correct position.

[0077] like Figure 5 As shown, the present invention also discloses a method for automatically detecting and cleaning a lithium battery injection port, the method steps are as follows:

[0078] S1. Lithium batteries are transported through the flow channel of the incoming material assembly line 100.

[0079] S2. Perform glue nail inspection on the lithium batteries on the incoming material assembly line 100.

[0080] Includes steps:

[0081] S21, using the blocking cylinder 350 to extend the blocking plate 351 to block the lithium batteries on the incoming material assembly line 100;

[0082] S22, using the dripping tube 360 ​​to drip and infiltrate the blocked lithium battery;

[0083] S23, the blocking cylinder 350 contracts to release the soaked lithium battery;

[0084] S24, using the cleaning robot 310 to clean the released lithium batteries.

[0085] S3. The unqualified lithium batteries are transported to the NG area, and the qualified lithium batteries are immersion cleaned.

[0086] S4, after wiping the bottom of the lithium battery that has passed the inspection and cleaning, it is transferred to the discharge assembly line 600.

[0087] Includes steps:

[0088] S41, the transfer robot 410 grabs the lithium battery pack to the wiping belt 431 and hovers there, and uses the wiping belt 431 to roll and wipe the bottom of the lithium battery;

[0089] S42, the transfer robot 410 grabs the lithium battery group and transfers it to the distance adjustment area, and uses the distance adjustment component to adjust the distance between a group of lithium batteries;

[0090] S43, pushing the lithium battery pack with adjusted spacing to the discharging assembly line 600.

[0091] S5. Blow dry and wipe the lithium battery on the discharging line 600 and transport it to the next process.

[0092] Includes steps:

[0093] S51, blocking the lithium battery pack on the discharging assembly line 600;

[0094] S52, performing a blowing operation on the intercepted lithium battery pack to dry the lithium battery;

[0095] S53, releasing the dried lithium battery pack on the discharging line 600.

[0096] With the above method, the incoming material assembly line 100 conveys lithium batteries, and the intelligent 3D camera 200 is fixed on the incoming material assembly line 100. The intelligent 3D camera 200 is used to detect the glue nails of the lithium batteries conveyed by the incoming material assembly line 100. The length of the glue nails and the presence of the glue nails can be detected by photoelectric sensing. It is determined whether it is an NG product according to the process standards. After it is determined to be an NG product, the robot transports the NG lithium battery to the NG buffer area for subsequent processing. After it is determined to be a qualified OK product, it continues to flow through the incoming material assembly line to the next process.

[0097] A cleaning assembly 300 is disposed on the side of the incoming material assembly line 100. First, the lithium battery is blocked and infiltrated. Then, a photoelectric sensor can be disposed on the incoming material assembly line 100. After the photoelectric sensor senses that the lithium battery is in place, the conveyor belt is controlled to stop running. The cleaning robot 310 removes the scrubbing head 320 from the cleaning tank 330 and repeatedly cleans the lithium battery injection port.

[0098] After the liquid injection port is cleaned, the transfer robot grabs the lithium battery pack and moves it to hover above the wiping assembly 430 to wipe the cleaning liquid from the bottom of the battery. After the bottom is wiped, the transfer robot 410 places the lithium battery pack in the spacing adjustment area. After the distance is changed, the push cylinder 441 extends the lithium battery pack to the drying operation position, and performs vertical and lateral drying operations on the liquid injection port.

[0099] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0100] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred components or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0101] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A lithium battery filling port automatic detection and cleaning operation line, characterized in that: include: Incoming material assembly line (100), used for conveying lithium batteries after installation of plastic nails; An intelligent 3D camera (200) is fixed on the incoming material assembly line (100) to perform glue nail detection on the lithium batteries conveyed by the incoming material assembly line (100); A cleaning component (300) is used to clean qualified lithium batteries on the incoming material assembly line (100); The transfer and wiping component (400) transfers the unqualified lithium batteries to the NG area, wipes the bottom of the qualified lithium batteries after cleaning, and transfers them to the discharge line (600); The drying component (500) performs a drying operation on the lithium batteries on the discharge line (600).

2. The automatic detection and cleaning line for lithium battery filling port according to claim 1, characterized in that: Also includes: The outer guardrail (700) is used to protect the operation line and ensure the safety of the operation.

3. The automatic detection and cleaning line for lithium battery filling port according to claim 1, characterized in that: The cleaning assembly (300) comprises a cleaning robot (310), the end of the clamping arm of the cleaning robot (310) is connected with a detachable scrubbing head (320), and a cleaning tank (330) is arranged on the side of the incoming material assembly line (100), and the cleaning tank (330) is used to clean the scrubbing head (320).

4. The automatic detection and cleaning line for lithium battery filling port according to claim 1, characterized in that: The transport wiping assembly (400) comprises a transport robot (410), and the ends of the clamping arms of the transport robot (410) are connected to four groups of driving cylinders (411), and the driving cylinders (411) are used to clamp and transport lithium batteries.

5. The automatic detection and cleaning line for lithium battery filling port according to claim 1, characterized in that: The drying component (500) comprises a blowing pipe (510), and the blowing pipe (510) is used to blow dry the top surface of the lithium battery.

6. A method for automatically detecting and cleaning the lithium battery filling port of the operation line according to any one of claims 1 to 5, characterized in that: The method steps are: S1, conveying lithium batteries through the flow channel of the incoming material assembly line (100); S2, performing a nail test on the lithium batteries on the incoming material assembly line (100); S3. Transfer the unqualified lithium batteries to the NG area, and perform immersion cleaning on the qualified lithium batteries; S4, wiping the bottom of the lithium battery after being cleaned and tested and transporting it to the discharge line (600); S5. Blow dry the wiped lithium battery on the discharging line (600) and transport it to the next process.

7. A lithium battery filling port automatic detection and cleaning method according to claim 6, characterized in that: In S2, the qualified lithium battery is subjected to immersion cleaning, including the following steps: S21, blocking lithium batteries on the incoming material assembly line (100); S22, dripping and infiltrating the intercepted lithium battery; S23, release the lithium battery after infiltration; S24. Clean the released lithium batteries.

8. The method for automatically detecting and cleaning the liquid injection port of a lithium battery according to claim 6, characterized in that: In S4, the bottom of the lithium battery that has passed the inspection and cleaning is wiped and then transferred to the discharge line, including the steps of: S41, using the transfer robot (410) to grab the lithium battery pack and place it on the wiping belt (431) to hover, and using the wiping belt (431) to roll and wipe the bottom of the lithium battery; S42, the transfer robot (410) grabs the lithium battery group and transfers it to the distance adjustment area, and uses the distance adjustment component to adjust the distance between the lithium batteries in a group; S43, pushing the lithium battery pack with adjusted spacing to the discharging assembly line (600).

9. A lithium battery filling port automatic detection and cleaning method according to claim 6, characterized in that: In S5, drying the wiped lithium battery on the discharging line (600) comprises the following steps: S51, blocking the lithium battery pack on the discharging line (600); S52, performing a blowing operation on the intercepted lithium battery pack to dry the lithium battery; S53, releasing the dried lithium battery pack on the discharging line (600).

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