An automated production line for performing cylindrical battery processes

Abstract

The application relates to an automatic production line for performing a cylindrical battery process, and belongs to the technical field of battery production and manufacturing. The automatic production line mainly comprises a flat-belt conveying line base, a flat-belt conveying line, a cup-shaped carrier, a clamping jaw carrier, a shell entering device, a rolling groove device, a negative electrode welding device, a positive electrode cover welding device, a liquid injection device, a sealing device, a squat sealing device and a tray loading device. The sequence of the cylindrical battery process is shell entering, rolling groove, negative electrode welding, positive electrode cover welding, liquid injection, sealing, squat sealing and tray loading. The application improves the traditional battery manufacturing process and integrates the cylindrical battery process into the automatic production line. In addition to placing the cylindrical battery shell into the designated position of the flat-belt conveying line for continuous processing according to the manufacturing degree, the detection mechanism is arranged to detect in real time to eliminate unqualified semi-finished products, so that low labor demand, low production cost waste, high production efficiency and uniform product quality are realized.

Description

Technical Field

[0001] This invention belongs to the field of battery manufacturing technology and relates to an automated production line for performing cylindrical battery manufacturing processes. Background Technology

[0002] Battery manufacturing has always been fraught with challenges, leading early companies to rely on manual labor. However, manual operation not only significantly increased labor costs but also raised the error rate due to human error, severely impacting product yield, production efficiency, and consistency. While advancements in technology and equipment have resulted in numerous automated systems designed and implemented, many problems remain, such as low efficiency, product non-compliance, and the inability of systems to promptly detect defects in semi-finished products, leading to further waste of time, manpower, and production materials. Summary of the Invention

[0003] In view of this, the object of the present invention is to provide an automated production line for performing cylindrical battery manufacturing processes.

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

[0005] An automated production line for cylindrical battery manufacturing mainly includes a flat belt conveyor base, a flat belt conveyor, a cup-shaped carrier, a gripper carrier, a casing insertion device, a grooving device, a negative electrode welding device, a positive electrode cap welding device, a liquid injection device, a sealing device, a squat sealing device, and a tray loading device.

[0006] The flat belt conveyor base is set below the flat belt conveyor and at least one cup-shaped carrier is placed there;

[0007] The shell insertion device, negative electrode welding device, grooving device, positive electrode cap welding device, liquid injection device, sealing device, squatting sealing device and tray loading device are arranged in sequence along the conveying direction of the flat belt conveyor line;

[0008] The flat belt conveyor first transports the cup-shaped carrier containing the battery cells to the casing device, and then transports the cylindrical battery casings to the negative electrode welding device, the grooving device, the positive electrode cap welding device, the liquid injection device, the sealing device, and the squat sealing device in sequence, and finally enters the tray loading device to finally produce cylindrical batteries.

[0009] Each of the casing insertion device, grooving device, positive electrode cap welding device, sealing device, and squatting sealing device is equipped with at least one gripper carrier to transport the cylindrical battery casing into the device for processing.

[0010] The steps for performing the cylindrical battery manufacturing process are as follows:

[0011] Step 1: The casing installation device uses CCD image sensing technology to screen qualified cylindrical battery empty casings and sequentially installs the negative electrode insulating pad and the battery cell. The cylindrical battery casings that have been installed are transferred to a flat belt conveyor line and transported to the negative electrode welding device.

[0012] Step 2: The grooving device grooves the cylindrical battery casing and applies adhesive to the top of the cylindrical battery casing. Finally, height detection and visual inspection are carried out to check the grooving results and reject defective products. Cylindrical battery casings that pass the inspection will be transferred to a flat belt conveyor line and sent to the grooving device.

[0013] Step 3: The negative electrode welding device performs spot welding on the cylindrical battery casing. The cylindrical battery casing with the negative electrode welding completed will be transferred to the flat belt conveyor line and sent to the positive electrode cap welding device.

[0014] Step 4: The positive electrode cap welding device presses the positive electrode cap onto the tab of the cell inside the cylindrical battery case to perform positive electrode cap welding. The cylindrical battery case with the positive electrode cap welded is then transferred to a flat belt conveyor line and sent to the liquid injection device.

[0015] Step 5: The liquid injection device injects battery fluid into the cylindrical battery case, and then the front and back weights of the cylindrical battery case are weighed to screen out defective products. The cylindrical battery cases that pass the test are transferred to the flat belt conveyor line and sent to the sealing device.

[0016] Step 6: The sealing device will press the positive electrode cap, which is welded to the tab on the cylindrical battery case, into the cylindrical battery case. Then, it will work with the battery mold to seal the cylindrical battery case. Finally, the voltage and internal resistance of the cylindrical battery will be tested to eliminate defective products. Cylindrical batteries that pass the test will be transferred to the flat belt conveyor line and sent to the squat sealing device.

[0017] Step 7: The squatting sealing device applies anti-rust oil to the top of the cylindrical battery for basic maintenance, then squats and seals the top of the cylindrical battery to ensure that the height of the cylindrical battery meets the specifications. Finally, the height of the cylindrical battery is measured to eliminate defective products. Cylindrical batteries that pass the inspection are transferred to the flat belt conveyor line and sent to the tray loading device.

[0018] Step 8: The tray loading device will lift the empty box to one side of the flat belt conveyor, and then push the cylindrical battery on the flat belt conveyor into the box. This completes all the implementation steps of this automated production line.

[0019] The gripper carrier includes an unlocking cylinder, two unlocking blocks, two pins, and two grippers I;

[0020] The unlocking cylinder has two telescopic ends on the same side, each fixed to an unlocking block and controlled separately;

[0021] The unlocking block is U-shaped, with its opening facing away from the unlocking cylinder.

[0022] The gripper I consists of a left gripper arm and a right gripper arm. The center of the left gripper arm and the right gripper arm are respectively hinged to the pin in a scissor shape. The pin is fitted with an elastic element so that the left gripper arm and the right gripper arm can be reset when there is no external force. The end of the two arms near the unlocking cylinder corresponds to the extension end of the unlocking cylinder, which drives the extension of the unlocking block at both ends. The unlocking cylinder drives the unlocking block to push the left gripper arm and the right gripper arm to rotate to open the gripper I, and closes the gripper I when the unlocking cylinder retracts the unlocking block.

[0023] The shell insertion device further includes a ring conveyor line A, a shell vibratory plate, a shell transfer mechanism, a shell detection mechanism, a negative electrode insulating pad punching mechanism, a negative electrode insulating pad shell insertion mechanism, a negative electrode insulating pad pressing mechanism, a shell insertion transfer mechanism, and a separation mechanism.

[0024] At least one set of gripper carriers is installed on the circular conveyor line A and numbered to distinguish them;

[0025] The flat belt conveyor line is connected to the gripper carrier on the ring conveyor line A through a hollow transfer mechanism;

[0026] The empty shell transfer mechanism, empty shell detection mechanism, negative electrode insulating pad insertion mechanism, negative electrode insulating pad pressing mechanism, and insertion and transfer mechanism are sequentially arranged on the conveying route of the circular conveyor line A along the conveying direction of the gripper carrier.

[0027] The empty shell vibratory plate is connected to the gripper carrier set on the circular conveyor line A through the empty shell transfer mechanism, so as to transfer the cylindrical battery shell in the empty shell vibratory plate into the gripper carrier.

[0028] The negative electrode insulating pad punching mechanism is connected to the gripper carrier set on the annular conveyor line A through the negative electrode insulating pad inserting mechanism, so as to put the negative electrode insulating pad punched by the negative electrode insulating pad punching mechanism into the cylindrical battery case inside the gripper carrier.

[0029] The separation mechanism is located at the edge of the flat belt conveyor line, close to the shell transfer mechanism, so as to send the cup-shaped carrier on the flat belt conveyor line out in a separation after the transfer is completed.

[0030] The hollow shell vibrating plate is controlled by the principle of electromagnet energizing and de-energizing. The cylindrical battery shells inside the hollow shell vibrate up and down to adjust the posture of the cylindrical battery shells and make them evenly arranged and delivered to supply the cylindrical battery shells required by the hollow shell transfer mechanism.

[0031] The empty shell transfer mechanism is a cantilever structure, which includes a transfer drive AI, a gripper cylinder A, and a gripper AII;

[0032] The transfer drive AI, as the end of the cantilever structure, is fixed above the gripper cylinder A and moves between the hollow vibratory plate and the annular conveyor line A.

[0033] The gripper AII is located below the gripper cylinder A. The gripper cylinder A controls the gripper AII to pick up the cylindrical battery shells provided by the empty shell vibratory plate and then transfer them to the gripper carrier on the circular conveyor line A. After the gripper carrier clamps the cylindrical battery shells, the gripper AII is released and reset.

[0034] The empty shell detection mechanism further includes a motor AI, a rocker A, and a CCD image sensor A;

[0035] One end of the rocker A is fixed to the rotating shaft of the motor AI, and the other end is fixed to the CCD image sensor A;

[0036] The motor AI controls the rocker arm A to move horizontally, thereby driving the CCD image sensor A to perform multi-position detection of the cylindrical battery shell in the gripper carrier;

[0037] Empty cylindrical battery casings that fail inspection will be discarded and released from the gripper carrier.

[0038] The negative electrode insulating pad insertion mechanism is a cylindrical structure, including a lifting drive A, a pitch drive, a rotating module A, and at least two suction nozzles;

[0039] The lifting drive A is fixed above the rotating module A, and the pitch drive is fixed to the side, which is used to control the lifting, rotation and pitch movement of at least two suction nozzles fixed below the pitch drive.

[0040] After the suction nozzle picks up the punched negative electrode insulating pad, it moves to the corresponding position in conjunction with the lifting drive A, the rotation module A and the pitch drive. The negative electrode insulating pad is released through the suction nozzle and falls into the cylindrical battery case, completing the reset of the negative electrode insulating pad after it enters the case.

[0041] The negative electrode insulating pad pressing mechanism is a flat plate structure, including a pressing cylinder A and a pressing head A;

[0042] The lower cylinder A serves as the top of the flat plate structure and is fixedly connected to the top of the pressure head A;

[0043] After the cylindrical battery case is transported to the corresponding position, the pressing cylinder A pushes the pressing head A to press the negative electrode insulating pad inside the cylindrical battery case to the bottom of the cylindrical battery case, thus completing the pressing of the negative electrode insulating pad.

[0044] The shell transfer mechanism is a cantilever structure, including transfer drive AII, gripper III cylinder A, gripper AIII, gripper AIV cylinder, and gripper AIV;

[0045] The transfer drive AII, as the end of the cantilever structure, is fixed above the gripper III cylinder A and the gripper AIV cylinder, and moves between the annular conveyor line A and the flat belt conveyor line.

[0046] The gripper AIII is fixed below the gripper cylinder A. The gripper AIII is controlled by the gripper cylinder A to pick up the battery cell to be put into the casing from the cup-shaped carrier on the flat belt conveyor line, put it into the cylindrical battery casing in the gripper carrier on the annular conveyor line A, and then reset.

[0047] The gripper AIV is fixed below the gripper AIV cylinder. The gripper AIV is controlled by the gripper AIV cylinder to pick up the cylindrical battery case with the battery cell already inserted from the gripper carrier on the annular conveyor line A when the casing transfer mechanism is reset, and put it into the cup-shaped carrier on the flat belt conveyor line.

[0048] The separation mechanism further includes a motor AII and a screw;

[0049] The motor AII is arranged along the direction of the flat belt conveyor line;

[0050] The screw is fixed to the shaft of motor AII;

[0051] The rotating screw of motor AII divides the cup-shaped carriers on the flat belt conveyor line into equal intervals.

[0052] The grooving device further includes a ring conveyor line B, a handling device B, a grooving mechanism, a dispensing mechanism, a height detection mechanism, and a vision inspection device.

[0053] At least one set of gripper carriers is installed on the circular conveyor line B and numbered to distinguish them;

[0054] The flat belt conveyor is connected to the gripper carrier on the circular conveyor B via the handling device B;

[0055] The conveying device B, at least one grooving mechanism, at least one dispensing mechanism, height detection mechanism, and vision detection device are sequentially arranged on the conveying route of the circular conveyor line B along the conveying direction of the gripper carrier.

[0056] The conveying device B is a cantilever structure with a central support and two arms that extend forward to the left and right. It includes two vertical drive BI, two horizontal drive BI, at least one gripper cylinder B and at least one gripper BII.

[0057] The two horizontal drive BIs are respectively the ends of the two arms of the cantilever structure, fixed to the side of the vertical drive BI, and move horizontally and vertically between the flat belt conveyor line and the ring conveyor line B.

[0058] The gripper cylinder B is fixed below the vertical drive BI, and the gripper BII is located below the gripper cylinder B. The gripper cylinder B controls the gripper BII to pick up the cylindrical battery case to be grooved from the cup-shaped carrier on the flat belt conveyor line to the circular conveyor line B. After the gripper carrier on the circular conveyor line B clamps the cylindrical battery case, the gripper BII is released and, upon resetting, picks up the cylindrical battery case that has passed the test from the gripper carrier on the circular conveyor line B and places it in the cup-shaped carrier on the flat belt conveyor line.

[0059] The grooving mechanism is a hollow square column structure, comprising a rotary drive B, a vertical drive BII, a descending drive B, a horizontal drive BII, a support head B, a roller, a rotating shaft BII, a support rod BII, and a lifting drive BII.

[0060] The descent drive B, as the top side of the hollow square column structure, is fixed above the support head B.

[0061] The lifting drive BI serves as the bottom of the hollow square column structure and is fixed to the bottom of the support rod BI, on the same side as the lowering drive B.

[0062] The descent drive B, in conjunction with the lifting drive BI, respectively pushes the support head B and the support rod BI to descend and lift, thereby positioning the cylindrical battery case from the top and bottom.

[0063] The vertical drive BII, as the top side of the square column hollow structure, is fixed above the horizontal drive BII, on the opposite side of the descending drive B.

[0064] The horizontal drive BII is fixed to the roller in the direction of the lifting drive BII, and works with the vertical drive BII to control the horizontal and vertical movement of the roller to reach the position where the cylindrical battery case needs to be grooved.

[0065] The rotary drive B is located below the horizontal drive BII, and drives the rotating shaft BII, which is located above the support rod BII, to rotate.

[0066] Rotary drive B works in conjunction with horizontal drive BII to groove the cylindrical battery casing at the desired location and depth using rollers.

[0067] The dispensing mechanism is a hollow square column structure, comprising a rotating shaft drive B, a vertical drive BIII, a horizontal drive BIII, a support rod BII, a lifting drive BII, a pressure head drive B, a pressure head B, a dispensing module, and a rotating shaft BII.

[0068] The pressure head drive B is fixed to the top side of the hollow square column structure.

[0069] The lifting drive BII serves as the bottom of the hollow square column structure and is fixed to the bottom of the support rod BII, on the same side as the pressure head drive B.

[0070] The pressure head drive B, in conjunction with the lifting drive BII, respectively pushes the pressure head B and the support rod BII to descend and lift, thereby positioning the cylindrical battery case from the top and bottom.

[0071] The vertical drive BIII, as the top side of the square column hollow structure, is fixed above the horizontal drive BIII, on the opposite side of the pressure head drive B.

[0072] The horizontal drive BIII is fixed to the dispensing module in the direction of the pressure head drive B, and works with the vertical drive BIII to control the horizontal and vertical movement of the dispensing module to reach the position where the cylindrical battery case needs to be dispensed.

[0073] The rotating shaft drive B is located below the horizontal drive BIII, and drives the rotating shaft BII, which is located above the support rod BII, to rotate.

[0074] The rotating shaft drive B works in conjunction with the horizontal drive BIII to apply adhesive to the cylindrical battery casing at the location where adhesive needs to be applied, using the dispensing module.

[0075] The height detection mechanism is a square column structure, comprising at least one detection drive B, at least one position sensor B, at least one slider B, at least one pressure block B, an overall vertical drive B, and a horizontal drive BIV.

[0076] The horizontal drive BIV serves as the bottom of the square column structure and is located below the overall vertical drive B, driving the overall height detection mechanism to move horizontally.

[0077] The overall vertical drive B is positioned above the horizontal drive BIV, driving the entire height detection mechanism, excluding the horizontal drive BIV, to move vertically.

[0078] The detection drive B, as the top of the square column structure, pushes the slider B fixed below it to slide, so that the pressure block B fixed on the slider B stops after hitting the top of the cylindrical battery case. At the same time, the position sensor B set above the slider B detects whether the height of the cylindrical battery case is qualified.

[0079] Empty shells that fail the inspection will be discarded and released from the gripper carrier.

[0080] The visual inspection device further includes a horizontal drive BV, a CCD image sensor B, and a light source B;

[0081] The horizontal drive BV is fixed to the light source B and the CCD image sensor B, and drives the light source B and the CCD image sensor B to move horizontally together.

[0082] The CCD image sensor B performs visual inspection of the cylindrical battery casing in the gripper carrier to check the grooving results.

[0083] Cylindrical battery casings that fail inspection will be discarded and released from the gripper carrier.

[0084] The negative electrode welding device further includes a conveying device and a spot welding mechanism;

[0085] The flat belt conveyor line is connected to the spot welding mechanism via a handling device;

[0086] The transport device transports the cylindrical battery case from the flat belt conveyor to the spot welding mechanism, and after the negative electrode welding is completed, it transports the cylindrical battery case back from the spot welding mechanism to the flat belt conveyor.

[0087] The spot welding mechanism is a hollow cylindrical structure, including battery fixing, welding needle driving, lower electrode and welding needle;

[0088] The battery is fixed as the side of the columnar structure, which is used to position the cylindrical battery casing at the lower electrode position from both sides.

[0089] The welding needle drive is the top of a columnar structure, fixed above the welding needle, and is used to push the welding needle, which serves as the upper electrode, through the small hole in the center of the cell to the bottom of the cylindrical battery case to weld the negative electrode tab to the bottom of the cylindrical battery case.

[0090] The positive electrode cap welding device includes a ring conveyor line C, a conveying device C, an electrode ear induction mechanism, a positive electrode cap vibrating plate, and a positive electrode cap welding mechanism.

[0091] At least one set of gripper carriers is installed on the circular conveyor line C and numbered to distinguish them;

[0092] The flat belt conveyor is connected to the gripper carrier on the circular conveyor C via the handling device C;

[0093] The conveying device C, the electrode induction mechanism, and the positive electrode cap welding mechanism are sequentially arranged on the conveying route of the circular conveyor line C along the conveying direction of the gripper carrier.

[0094] The positive electrode cap vibratory plate is connected to a gripper carrier set on the circular conveyor line C through a positive electrode cap welding mechanism, so as to provide the positive electrode cap in the positive electrode cap vibratory plate to the positive electrode cap welding mechanism to complete the positive electrode cap welding.

[0095] The conveying device C is a cantilever structure with a central support and two arms that extend forward to the left and right. It includes two vertical drive CIs, two horizontal drive CIs, at least one gripper cylinder C, and at least one gripper CII.

[0096] The two horizontal drive CIs are respectively the ends of the two arms of the cantilever structure, fixed to the side of the vertical drive CI, and move horizontally and vertically between the flat belt conveyor line and the ring conveyor line C.

[0097] The gripper cylinder C is fixed below the vertical drive CI, and the gripper CII is located below the gripper cylinder C. The gripper CII is controlled by the gripper cylinder C to pick up the cylindrical battery case to be welded with the positive electrode cap from the cup-shaped carrier on the flat belt conveyor and put it into the circular conveyor C. After the gripper carrier on the circular conveyor C clamps the cylindrical battery case, the gripper CII is released and, upon resetting, picks up the cylindrical battery case with the positive electrode cap welded from the gripper carrier on the circular conveyor C and places it into the cup-shaped carrier on the flat belt conveyor.

[0098] The electrode sensing mechanism is divided into upper and lower parts. The lower part is a hollow columnar structure, which includes a rotation drive C, a square shaft C, an unlocking drive C, a slider C, a fork, a push rod C, a swing rod C and a gripper CIII. The upper part includes a blocking sensor.

[0099] The rotary drive C serves as the bottom of the lower hollow column and is fixed to the lower part of the square shaft C.

[0100] The slider C is a hollow structure with a square hole in the lower part for inserting the square shaft C from the top. When the unlocking drive C is unlocked, the upper part of the slider C can be synchronized with the lower part of the slider C through the fork to cooperate with the rotation drive C to rotate.

[0101] The unlocking drive C is located on the side of the lower hollow column, and the fork is fixed above it. When unlocked, the fork is located in the hollow area of ​​the slider, causing the lower part of the slider C to rotate freely without synchronizing with the upper part of the slider C. When unlocked, the fork is pushed to move along the square axis C to synchronize with the upper part of the slider C, which drives the top rod C fixed above the slider C to move and rotate synchronously.

[0102] The swing arm C is positioned above the top rod C, and controls the gripper CIII positioned above the swing arm C to clamp the cylindrical battery case and rotate in coordination with the rotation drive C.

[0103] The blocking part of the blocking sensor is located at the position of the cylindrical battery tab. When the cylindrical battery case is rotated, the tab will first block the blocking sensor. Once the sensor is turned on, the tab has been rotated to the required position.

[0104] The positive electrode cap vibratory feeder uses the principle of electromagnet energizing and de-energizing to control the positive electrode caps inside the vibratory feeder to jump up and down, thereby adjusting the front and back of the positive electrode caps and arranging them evenly. It can continuously supply the positive electrode caps required by the positive electrode cap welding mechanism.

[0105] The positive electrode cap welding mechanism is a hollow columnar structure, including a positive electrode cap connector, a positive electrode cap material channel, an electromagnet, a sensor C, a support block C, a slide rod C, a motor C, an eccentric wheel C, an eccentric rocker C, a cylinder C, a guide rod C, a battery pressing block C, an electrode tab pressing block C, a laser channel, and a laser welding machine.

[0106] The positive electrode cap material channel, as one side of the columnar structure, is located above the positive electrode cap receiving block, providing the positive electrode cap from the positive electrode cap vibrating plate;

[0107] The sensor C is fixed to the side of the positive electrode cap block to sense whether there is an obstacle in front of the positive electrode cap block. When the positive electrode cap reaches the front of the positive electrode cap block, the sensor C will be triggered to control the electromagnet embedded in the positive electrode cap block to be magnetized so as to attract the positive electrode cap.

[0108] The motor C serves as the bottom of the columnar structure, driving the eccentric wheel C located above it to rotate, thereby causing the eccentric rocker arm C fixed inside the eccentric wheel C to rotate, so that the slide bar C hinged to the eccentric rocker arm C moves horizontally, causing the positive electrode cap block fixed to the slide bar C to magnetically attract the positive electrode cap close to the positive electrode tab.

[0109] The support block C is located at the bottom of the positive electrode cap block, corresponding to the battery pressure block C under the electrode tab pressure block C. The support block C and the battery pressure block C cooperate to fix the cylindrical battery.

[0110] The cylinder C is located on both sides of the battery pressing block C. It pushes the fixed guide rod C to drive the tab pressing block C fixed to the other end of the guide rod C. Together with the support block C and the battery pressing block C, the cylinder presses the cylindrical battery shell. At the same time, the tab pressing block C presses the tab onto the positive electrode cap.

[0111] The laser channel is located behind and below the tab block C, corresponding to the area to be welded. It contains a laser welding machine. After the cylindrical battery case is pressed together with the tab and the positive electrode cap, the positive electrode cap is welded using the laser welding machine.

[0112] The liquid injection device further includes a ring conveyor line D, a weighing mechanism I, a liquid injection tray transfer mechanism, a liquid injection mechanism, and a weighing mechanism II;

[0113] At least one liquid injection tray transfer mechanism is installed on the circular conveyor line D and is numbered to distinguish it;

[0114] The flat belt conveyor line is connected to the liquid injection tray transfer mechanism on the circular conveyor line D through weighing mechanism I and weighing mechanism II;

[0115] The weighing mechanism I, the liquid injection mechanism and the weighing mechanism II are sequentially arranged on the conveying route of the circular conveyor line D along the conveying direction of the liquid injection tray transfer mechanism.

[0116] The weighing mechanism I further includes a robotic arm I and at least one electronic scale I;

[0117] The robotic arm I is positioned between the flat belt conveyor, the weighing mechanism I, and the circular conveyor D. It transfers the cylindrical battery cases to be injected one by one from the flat belt conveyor to the weighing mechanism I, records the initial weight through the electronic scale I, and then transfers the cylindrical battery cases from the weighing mechanism I to the injection tray transfer mechanism.

[0118] The liquid injection tray transfer mechanism is a platform structure, including a liquid injection tray, a motor D, a servo motor D, a speed-multiplying chain, a lifting and positioning mechanism D, a blocking cylinder D, a slider D, and a guide rail D.

[0119] The injection tray is provided with at least one slot and is numbered to distinguish them;

[0120] The motor D is connected to a speed-multiplying chain to move the injection tray horizontally.

[0121] The servo motor D is fixed to the slider D, which is set and slides on the guide rail D to move the injection tray vertically.

[0122] The lifting and positioning D and the blocking cylinder D are respectively located at the bottom and side of the platform structure to limit the movement boundary of the liquid injection tray.

[0123] The liquid injection mechanism is a platform structure, including at least one liquid injection nozzle, at least one liquid injection controller, a horizontal drive D, a vertical drive D, and at least one proximity drive D;

[0124] The liquid injection controller, which serves as the top of the platform structure, is connected to the liquid injection nozzle via a conduit. Together with the horizontal drive D and vertical drive D, which also serve as the top of the platform structure, it drives the platform structure to move horizontally and vertically.

[0125] The near-drive D serves as the bottom of the platform structure, with the injection nozzle fixed below it;

[0126] After the injection tray is delivered to the designated injection position, it moves close to the drive D, causing the injection nozzle to move closer to the cylindrical battery casing, and then the battery fluid is injected.

[0127] The weighing mechanism II further includes a robotic arm II and at least one electronic scale II;

[0128] The robotic arm II is positioned between the flat belt conveyor, the weighing mechanism II, and the circular conveyor D. It transfers the cylindrical battery cases that have been filled with liquid from the liquid filling tray transfer mechanism on the circular conveyor D to the weighing mechanism II one by one. The final weight is recorded by the electronic scale II. The cylindrical battery cases that meet the weight requirements are transferred by the robotic arm II from the weighing mechanism II to the cup-shaped carrier on the flat belt conveyor.

[0129] Cylindrical battery cases that fail inspection will be removed when the robotic arm II transfers the cylindrical battery cases onto the electronic scale II next time.

[0130] The sealing device further includes a ring conveyor line E, a handling device E, a positive electrode pre-compression mechanism, a positive electrode pressing mechanism, a positive electrode first sealing mechanism, a positive electrode second sealing mechanism, an electrical testing module, and a finished product unloading mechanism;

[0131] At least one set of gripper carriers is installed on the circular conveyor line E and numbered to distinguish them;

[0132] The flat belt conveyor is connected to the gripper carrier on the circular conveyor line E via the handling device E;

[0133] The conveying device E, the positive electrode pre-compression mechanism, the positive electrode pressing mechanism, at least one positive electrode sealing mechanism, at least one positive electrode double sealing mechanism, the electrical testing module, and the finished product unloading mechanism are sequentially arranged on the conveying route of the circular conveyor line E along the conveying direction of the gripper carrier.

[0134] The conveying device E is a cantilever structure with a central support and two arms that extend forward to the left and right. It includes two vertical drive EIs, two horizontal drive EIs, at least one gripper cylinder E, and at least one gripper EII.

[0135] The two horizontal drive EIs serve as the ends of the two arms of the cantilever structure, and are fixed to the side of the vertical drive EI. They move horizontally and vertically between the flat belt conveyor line, the flat belt conveyor line and the ring conveyor line E.

[0136] The gripper cylinder E is fixed below the vertical drive EI, and the gripper EII is located below the gripper cylinder E. The gripper EII is controlled by the gripper cylinder E to pick up the cylindrical battery case to be sealed from the cup-shaped carrier on the flat belt conveyor line and transfer it to the annular conveyor line E. After the gripper carrier on the annular conveyor line E clamps the cylindrical battery case, the gripper EII is released.

[0137] The positive electrode pre-compression mechanism is a platform structure, divided into two sides to pre-compress the central cylindrical battery casing. The side closer to the positive electrode cap includes a rotating cylinder E, a rotating shaft E, a spring E, and a pressure roller E, while the side closer to the electrode tab includes a support block cylinder E and a support block E.

[0138] The positive electrode pressing mechanism is a platform structure with three sides for pressing the positive electrode into the central cylindrical battery casing. The side near the positive electrode cap includes a stop cylinder E and a stop block E. The side above the cylindrical battery casing includes a pressing head cylinder E and a pressing head E. The side near the tab includes a cap push block cylinder, a cap push block E, a tab push block cylinder E, and a tab push block E.

[0139] The support block cylinder E is fixedly connected to the support block E, and the support point of the support block E corresponds to the lower part of the pole tab.

[0140] The rotating cylinder E is fixedly connected to the rotating shaft E, the pressure roller E is fixedly connected to the rotating shaft E at one end near the cylindrical battery shell, and the two ends of the spring E are fixedly connected to the rotating cylinder E and the rotating shaft E.

[0141] After the support block cylinder E pushes the support block E against one side of the positive electrode tab, the rotating shaft cylinder E pushes the rotating shaft E, and the pressure roller E, which is synchronously fixed to one end of the rotating shaft E with the spring E, rotates to press the positive electrode cap down from the other side of the positive electrode tab, thus completing the positive electrode pre-compression.

[0142] The electrode pusher cylinder E is fixed to the electrode pusher E at one end near the electrode, and the pushing point of the electrode pusher E corresponds to the lower part of the electrode.

[0143] The cap pusher cylinder is fixed to the cap pusher E at one end near the electrode lug, and is fixed above the electrode lug pusher E.

[0144] The stop cylinder E is fixed to one end near the positive electrode cap, and the stop point of the stop block E corresponds to the upper part of the positive electrode cap.

[0145] The pressure head cylinder E is fixed to one end near the top of the cylindrical battery case, and the pressure point of the pressure head E corresponds to the top of the cylindrical battery case.

[0146] The stop cylinder E pushes the stop block E to restrict the movement boundary on one side of the positive electrode cap, the tab pusher cylinder E pushes the tab pusher E to fold the tab, then the cap pusher cylinder pushes the cap pusher E to push the positive electrode cap to the top of the cylindrical battery casing, and finally the pressure head cylinder E pushes the pressure head E to press the cap into the cylindrical battery casing, completing the positive electrode pressing.

[0147] The positive electrode sealing mechanism is a columnar structure, including a servo press EI, a cap press head EI, a sealing mold and a battery fixing EI;

[0148] The positive electrode double sealing mechanism is a columnar structure, including a servo press EII, a cap press head EII, a double sealing mold and a battery fixing EII;

[0149] The first sealing mold and the second sealing mold are different models, and are used to initially flatten the top of the cylindrical battery case and to press the inner circumference of the flattened cylindrical battery case to a deeper depth, respectively.

[0150] The servo press EI serves as the top of a columnar structure and is fixed above the cap press head EI.

[0151] The compression mold covers the cap pressure head EI;

[0152] The battery fixing EI serves as the bottom of the columnar structure, and the cylindrical battery casing is fixed from both sides of the cylindrical battery casing.

[0153] The servo press EI pushes the cap press head EI to drive the sealing die downwards, and together with the battery fixing EI, fixes the cylindrical battery case to complete the sealing of the battery positive terminal;

[0154] The servo press EII, as the top of the columnar structure, is fixed above the cap press head EII;

[0155] The two sealing molds cover the cap press head EII;

[0156] The battery fixing EII serves as the bottom of the columnar structure, fixing the cylindrical battery casing to both sides of the cylindrical battery casing.

[0157] The servo press EII pushes the cap press head EII to drive the second sealing mold downwards, and together with the battery fixing EII, fixes the cylindrical battery case to complete the second sealing of the battery positive electrode.

[0158] The electrical measurement module further includes probe driver I, probe I, probe driver II, and probe II;

[0159] The probe driver I serves as the top of the electrical measurement module, fixed to the probe I towards the positive electrode of the cylindrical battery case, while the probe driver II serves as the bottom of the electrical measurement module, fixed to the probe II towards the negative electrode of the cylindrical battery case.

[0160] After the cylindrical battery reaches the designated position, probe driver I and probe driver II push probe I and probe II to contact the top and bottom of the battery respectively to detect whether the battery has voltage and internal battery pack.

[0161] Cylindrical batteries that fail the inspection will be discarded and released from the gripper carrier.

[0162] The finished product unloading mechanism is a cantilever structure, including a gripper cylinder EII, at least one gripper EIII, a rotary drive E, a rotating shaft E, a belt E, and a lifting drive E.

[0163] The lifting drive E serves as the bottom of the cantilever structure, driving the entire cantilever to move up and down.

[0164] The rotating shaft E serves as the top of the cantilever structure, with a gripper cylinder EII fixedly connected to one side and a belt E fitted onto the other side to synchronously rotate the rotation drive E located below.

[0165] At least one gripper EIII is fixedly attached to the lower part of the gripper cylinder EII;

[0166] The gripper cylinder EII controls the gripper EIII to grip the cylindrical battery. After the cylindrical battery is rotated 90 degrees by the rotary drive E and the belt E, the gripper EIII is released to place the cylindrical battery on the flat belt conveyor line.

[0167] The squatting sealing device further includes a ring conveyor line F, a transfer mechanism F, an oiling mechanism, a squatting sealing mechanism, and a height detection mechanism;

[0168] At least one set of gripper carriers is installed on the circular conveyor line F and numbered to distinguish them;

[0169] The flat belt conveyor line is connected to the gripper carrier on the circular conveyor line F via the transfer mechanism F;

[0170] The transfer mechanism F, at least one oiling mechanism, at least one sealing mechanism, and height detection mechanism are sequentially arranged on the conveying route of the circular conveyor line F along the conveying direction of the gripper carrier.

[0171] The transfer mechanism F is a cantilever structure, including a gripper cylinder FII, at least one gripper FIII, a rotary drive F, a rotating shaft F, a belt F, and a lifting drive FII;

[0172] The lifting drive FI serves as the bottom of the cantilever structure, driving the entire cantilever to move up and down.

[0173] The rotating shaft F serves as the top of the cantilever structure, with a gripper cylinder FII fixed to one side and a belt F fitted on the other side to rotate synchronously with the rotation drive F located below.

[0174] The at least one gripper FIII is fixedly connected to the lower part of the gripper cylinder FII;

[0175] The gripper cylinder FII controls the gripper FIII to pick up the cylindrical battery from the flat belt conveyor line during feeding. Then, in conjunction with the rotary drive F and the belt F, the cylindrical battery is rotated 90 degrees. Finally, the gripper carrier on the annular conveyor line F clamps the cylindrical battery, and at the same time, the gripper FIII releases, completing the feeding process.

[0176] The gripper cylinder FII controls the gripper FIII to pick up the cylindrical battery from the gripper carrier on the circular conveyor line F during unloading. Then, in conjunction with the rotary drive F and the belt F, the cylindrical battery is rotated 90 degrees. Finally, the gripper FIII is released to place the cylindrical battery on the flat belt conveyor line, thus completing the unloading process.

[0177] The oiling mechanism is a cantilever structure, including a lifting drive FII, an oiling fixture cylinder, an oil inlet connector, and an oiling fixture;

[0178] The oiling fixture cylinder serves as the top of the cantilever structure, pushing the oiling fixture fixed below to perform oiling.

[0179] The oiling fixture is fixed below the oiling fixture cylinder, and an oil inlet connector is fixed to the side to supply rust-preventive oil to remove the highly corrosive electrolyte at the positive terminal of the battery and perform battery maintenance.

[0180] The lifting drive FII serves as the bottom of the cantilever structure and controls the lifting and moving of the entire cantilever.

[0181] The squatting sealing mechanism is a columnar structure, comprising a servo press F, a cap pressing head F, a squatting sealing mold, and a battery fixing F;

[0182] The servo press F serves as the top of a columnar structure and is fixed above the cap press head F;

[0183] The squatting sealing mold covers the cap pressing head F;

[0184] The battery fixing F serves as the bottom of the columnar structure, and the cylindrical battery is fixed from both sides of the cylindrical battery.

[0185] The servo press F pushes the cap press head F to drive the squat sealing mold downwards, and together with the battery fixing F, fixes the cylindrical battery case to complete the battery squat sealing.

[0186] The height detection mechanism is a plate-shaped structure, comprising a pressure head cylinder F, a pressure head F, a sliding plate cylinder F, a sliding plate F, and a position sensor F;

[0187] The pressure head cylinder F serves as the top of a plate-like structure, controlling the pressure head F located below to fix the cylindrical battery.

[0188] The pressure head F is a clamping structure used to support and fix the cylindrical battery from the top and bottom.

[0189] The position sensor F is installed below the sliding plate cylinder F, and the sliding plate cylinder F is used to move the sliding plate F to detect the height of the cylindrical battery.

[0190] The tray loading device further includes an empty box lifting mechanism and a battery box insertion mechanism;

[0191] The empty box lifting mechanism is a columnar structure, including an L-shaped carrier, a carrier cylinder, a lifting drive G, and a pin G;

[0192] The battery loading mechanism further includes a battery pusher cylinder and a battery pusher module.

[0193] Above the empty box lifting mechanism is a flat belt conveyor line, which works in conjunction with the battery box loading mechanism located next to the flat belt conveyor line to load the battery into the box.

[0194] The battery pusher plate cylinder is fixedly connected to the battery pusher plate module.

[0195] The lifting drive G serves as the bottom of the columnar structure, with a hinged pin G controlling the lifting and moving of the L-shaped carrier located above.

[0196] The carrier cylinder is fixed to the L-shaped carrier, and controls the L-shaped carrier to tilt appropriately to ensure that the battery box does not tip over.

[0197] The battery pusher module further includes an L-shaped top plate, an extension plate, a slider G, and a connecting rod.

[0198] The extension plate is located on the top of the L-shaped top plate. The bottom sides of the L-shaped top plate are respectively hinged to one end of the connecting rod, and the other end of the connecting rod is fixed to the slider G.

[0199] When the battery pusher cylinder drives the L-shaped top plate to descend, one end of the connecting rod descends simultaneously, while the other end of the connecting rod drives the slider G to move horizontally, thereby driving the extension plate to push the cylindrical battery on the flat belt conveyor line into the box.

[0200] This invention improves the traditional battery manufacturing process and integrates the cylindrical battery manufacturing process into an automated production line. In addition to allowing the cylindrical battery casing to be placed in a designated position on a flat belt conveyor for further processing based on its processing level, it also includes an inspection mechanism to detect and eliminate unqualified semi-finished products in real time, achieving low manpower requirements, low production cost waste, high production efficiency, and consistent product quality.

[0201] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0202] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0203] Figure 1 This is a flowchart of an automated production line for performing cylindrical battery manufacturing processes according to an embodiment of the present invention;

[0204] Figure 2 This is a schematic diagram of the gripper carrier in an embodiment of the present invention;

[0205] Figure 3 This is a schematic diagram of the casing device in an embodiment of the present invention;

[0206] Figure 4 This is a schematic diagram of the negative electrode insulating pad punching mechanism in an embodiment of the present invention;

[0207] Figure 5 This is a schematic diagram of the hollow shell transfer mechanism in an embodiment of the present invention;

[0208] Figure 6 (a) is a schematic diagram of the empty shell detection mechanism in an embodiment of the present invention, and (b) is a top view of (a).

[0209] Figure 7 This is a schematic diagram of the negative electrode insulating pad insertion mechanism in an embodiment of the present invention;

[0210] Figure 8 This is a schematic diagram of the negative electrode insulating pad pressing mechanism in an embodiment of the present invention;

[0211] Figure 9This is a schematic diagram of the shell transfer mechanism in an embodiment of the present invention;

[0212] Figure 10 This is a schematic diagram of the spacing mechanism in an embodiment of the present invention;

[0213] Figure 11 This is a schematic diagram of the grooving device in an embodiment of the present invention;

[0214] Figure 12 (a) is a structural schematic diagram of the conveying device B in an embodiment of the present invention, and (b) is a right view of (a);

[0215] Figure 13 (a) is a schematic diagram of the grooving mechanism in an embodiment of the present invention, and (b) is a side view of (a).

[0216] Figure 14 (a) is a schematic diagram of the dispensing mechanism in an embodiment of the present invention, and (b) is a side view of (a).

[0217] Figure 15 This is a schematic diagram of the height detection mechanism in an embodiment of the present invention;

[0218] Figure 16 This is a schematic diagram of the structure of the visual inspection device in an embodiment of the present invention;

[0219] Figure 17 This is a schematic diagram of the positive electrode cap welding device in an embodiment of the present invention;

[0220] Figure 18 (a) is a schematic diagram of the structure of the conveying device C in an embodiment of the present invention, and (b) is a right view of (a);

[0221] Figure 19 The diagram shows the structure of the electrode sensing mechanism in an embodiment of the present invention. (a) is the upper part of the electrode sensing mechanism, (b) is the left view of (a), (c) is the lower part of the electrode sensing mechanism, and (d) is the left view of (c).

[0222] Figure 20 The following are schematic diagrams of the positive electrode cap welding mechanism in an embodiment of the present invention: (a) is a top view of the positive electrode cap welding mechanism; (b1) is a partial enlarged view of one end of the eccentric rocker to the slide bar in (a); (b2) is a left view of (b1); (c) is a left view of the positive electrode cap welding mechanism; (d) is a partial enlarged view of one end of the electrode tab and the battery block in (a); (d1) is a schematic diagram of the structure of the laser channel between the electrode tab and the battery block; and (d2) is a schematic diagram of the structure of one end of the electrode tab and the battery block.

[0223] Figure 21 This is a schematic diagram of the liquid injection device and sealing device in an embodiment of the present invention;

[0224] Figure 22 This is a schematic diagram of the liquid injection tray transfer mechanism in an embodiment of the present invention;

[0225] Figure 23 This is a schematic diagram of the liquid injection mechanism in an embodiment of the present invention;

[0226] Figure 24 This is a schematic diagram of the structure of the conveying device E in an embodiment of the present invention;

[0227] Figure 25 This is a schematic diagram of the positive electrode pre-loading mechanism in an embodiment of the present invention;

[0228] Figure 26 This is a schematic diagram of the positive electrode pressing mechanism in an embodiment of the present invention;

[0229] Figure 27 This is a schematic diagram of the positive electrode sealing mechanism in an embodiment of the present invention;

[0230] Figure 28 This is a schematic diagram of the positive electrode double-sealing mechanism in an embodiment of the present invention;

[0231] Figure 29 This is a schematic diagram of the electrical measurement module in an embodiment of the present invention;

[0232] Figure 30 This is a schematic diagram of the finished product feeding mechanism in an embodiment of the present invention;

[0233] Figure 31 This is a schematic diagram of the structure of the sealing device and the tray loading device in an embodiment of the present invention;

[0234] Figure 32 This is a schematic diagram of the transfer mechanism F in an embodiment of the present invention;

[0235] Figure 33 This is a schematic diagram of the oiling mechanism in an embodiment of the present invention;

[0236] Figure 34 This is a schematic diagram of the squatting sealing mechanism in an embodiment of the present invention;

[0237] Figure 35 This is a schematic diagram of the height detection mechanism in an embodiment of the present invention;

[0238] Figure 36 This is a schematic diagram of the empty box lifting mechanism in an embodiment of the present invention;

[0239] Figure 37 (a) is a schematic diagram of the battery box insertion mechanism in an embodiment of the present invention, and (b) is a schematic diagram of the battery pusher module in an embodiment of the present invention.

[0240] Figure label:

[0241] 1- Flat belt conveyor base, 2- Flat belt conveyor,

[0242] 3-Gripper carrier, 301-Unlocking cylinder, 302-Unlocking block, 303-Pin, 304-Gripper I,

[0243] 4-Circular conveyor line A, 5-Circular conveyor line B, 6-Circular conveyor line C, 7-Circular conveyor line D, 8-Circular conveyor line E, 9-Circular conveyor line F,

[0244] A - Shell insertion device, A1 - Empty shell transfer mechanism, A101 - Transfer drive AI, A102 - Gripper cylinder A, A103 - Gripper AII, A2 - Empty shell detection mechanism, A201 - Motor AI, A202 - Rocker A, A203 - CCD image sensor A, A3 - Negative electrode insulating pad punching mechanism, A4 - Negative electrode insulating pad shell insertion mechanism, A401 - Lifting drive A, A402 - Variable pitch drive, A403 - Rotation module A, A404 - Suction Nozzle, A5 - Negative Electrode Insulating Pad Pressing Mechanism, A501 - Pressing Cylinder A, A502 - Pressing Head A, A6 - Housing Transfer Mechanism, A601 - Transfer Drive AII, A602 - Gripper III Cylinder A, A603 - Gripper AIII, A604 - Gripper AIV Cylinder, A605 - Gripper AIV, A7 - Splitting Mechanism, A701 - Motor AII, A702 - Screw, A8 - Empty Housing Vibratory Disk

[0245] B-Grooving device, B1-Transporting device B, B101-Vertical drive B102-Horizontal drive B103-Gripper cylinder B, B104-Gripper B101, B2-Grooving mechanism, B201-Rotary drive B, B202-Vertical drive B101, B203-Lowering drive B, B204-Horizontal drive B101, B205-Support head B, B206-Roller, B207-Rotating shaft B101, B208-Support rod B101, B209-Lifting drive B101, B3-Dispensing mechanism, B301-Rotating shaft drive B, B302- Vertical drive BIII, B303-Horizontal drive BIII, B304-Support rod BII, B305-Lifting drive BII, B306-Pressure head drive B, B307-Pressure head B, B308-Dispensing module, B309-Rotating shaft BII, B4-Height detection mechanism, B401-Detection drive B, B402-Position sensor B, B403-Slider B, B404-Pressure block B, B405-Integral vertical drive B, B406-Horizontal drive BIV, B5-Vision inspection device, B501-Horizontal drive BV, B502-CCD image sensor B, B503-Light source B

[0246] C-Positive electrode cap welding device, C1-Transporting device C, C101-Vertical drive CI, C102-Horizontal drive CI, C103-Gripper cylinder C, C104-Gripper CII, C2-Electrode ear sensing mechanism, C201-Rotation drive C, C202-Square shaft C, C203-Unlocking drive C, C204-Slider C, C205-Shift fork, C206-Top rod C, C207-Swing rod C, C208-Gripper CIII, C209-Blocking sensor, C3-Positive electrode cap vibratory feeder, C4-Positive electrode cap welding mechanism, C401-Positive electrode cap connector, C402-Positive electrode cap feed channel, C403-Electromagnet, C404-Sensor C, C405-Support block C, C406-Slide rod C, C407-Motor C, C408-Eccentric wheel C, C409- Eccentric joystick C, C410-Cylinder C, C411-Guide rod C, C412-Battery clamping block C, C413-Electrical tab clamping block C, C414-Laser channel,

[0247] D-Liquid Injection Device, D1-Weighing Mechanism I, D101-Robot Arm I, D102-Electronic Scale I, D2-Liquid Injection Tray Transfer Mechanism, D201-Liquid Injection Tray, D202-Motor D, D203-Servo Motor D, D204-Speed ​​Chain, D205-Lifting and Positioning D, D206-Blocking Cylinder D, D207-Slider D, D208-Guide Rail D, D3-Liquid Injection Mechanism, D301-Liquid Injection Nozzle, D302-Liquid Injection Controller, D303-Horizontal Drive D, D304-Vertical Drive D, D305-Proximity Drive D, D4-Weighing Mechanism II, D401-Robot Arm II, D402-Electronic Scale II

[0248] E-Sealing device, E1-Transporting device E, E101-Vertical drive EI, E102-Horizontal drive EI, E103-Gripper cylinder E, E104-Gripper EII, E2-Positive electrode pre-compression mechanism, E201-Rotating shaft cylinder E, E202-Rotating shaft E, E203-Spring E, E204-Pressure roller E, E205-Support block cylinder E, E206-Support block E, E3-Positive electrode pressing mechanism, E301-Stop block cylinder E, E302-Stop block E, E303-Pressure head cylinder E, E304-Pressure head E, E305-Cap pusher cylinder, E306-Cap pusher E, E307-Electrode tab pusher cylinder E, E308-Electrode tab pusher E, E4-Positive electrode Seal mechanism, E401-Servo press EI, E402-Cap press head EI, E403-Seal die, E404-Battery fixing EI, E5-Positive electrode double sealing mechanism, E501-Servo press EII, E502-Cap press head EII, E503-Double sealing die, E504-Battery fixing EII, E6-Electrical testing module, E601-Probe drive I, E602-Probe I, E603-Probe drive II, E604-Probe II, E7-Finished product unloading mechanism, E701-Grip cylinder EII, E702-Gripper EIII, E703-Rotary drive E, E704-Shaft E, E705-Belt E, E706-Lifting drive E

[0249] F-Squatting sealing device, F1-Transfer mechanism F, F101-Gripper cylinder FII, F102-Gripper FIII, F103-Rotary drive F, F104-Rotating shaft F, F105-Belt F, F106-Lifting drive FII, F2-Oil coating mechanism, F201-Lifting drive FII, F202-Oil coating fixture cylinder, F203-Oil inlet connector, F204-Oil coating fixture, F3-Squatting sealing mechanism, F301-Servo press F, F302-Cap pressing head F, F303-Squatting sealing die, F304-Battery fixing F, F4-Height detection mechanism, F401-Pressure head cylinder F, F402-Pressure head F, F403-Sliding plate cylinder F, F404-Sliding plate F, F405-Position sensor F.

[0250] G-Packing device, G1-Empty box lifting mechanism, G101-L-type carrier, G102-Carrier cylinder, G103-Lifting drive G, G104-Pin shaft G, G2-Battery box insertion mechanism, G201-Battery push plate cylinder, G202-Battery push plate module, G20201-L-type top plate, G20202-Extension plate, G20203-Slider G, G20204-Connecting rod G. Detailed Implementation

[0251] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0252] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0253] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0254] Please see Figure 1 This is an automated production line for performing cylindrical battery manufacturing processes, mainly including a flat belt conveyor base (1), a flat belt conveyor (2), a cup-shaped carrier, a gripper carrier (3), a casing device (A), a grooving device (B), a negative electrode welding device, a positive electrode cap welding device (C), a liquid injection device (D), a sealing device (E), a squat sealing device (F), and a tray loading device (G).

[0255] The flat belt conveyor base (1) is set under the flat belt conveyor (2) and at least one cup-shaped carrier is placed thereon;

[0256] The shell insertion device (A), negative electrode welding device, grooving device (B), positive electrode cap welding device (C), liquid injection device (D), sealing device (E), squatting sealing device (F) and tray loading device (G) are arranged sequentially along the conveying direction of the flat belt conveyor line (2);

[0257] The flat belt conveyor (2) first transports the cup-shaped carrier containing the battery cells to the casing device (A), and then transports the cylindrical battery casing to the negative electrode welding device, the grooving device (B), the positive electrode cap welding device (C), the liquid injection device (D), the sealing device (E), the squat sealing device (F) in sequence, and finally enters the tray loading device (G) to finally produce a cylindrical battery.

[0258] Each of the casing insertion device (A), grooving device (B), positive electrode cap welding device (C), sealing device (E) and squatting sealing device (F) is equipped with at least one gripper carrier (3) to transport the cylindrical battery casing into the device for processing;

[0259] The steps for performing the cylindrical battery manufacturing process are as follows:

[0260] Step 1: The casing device (A) uses CCD image sensing technology to screen qualified cylindrical battery empty casings and sequentially inserts negative electrode insulating pads and battery cells. The cylindrical battery casings that have been installed will be transferred to the flat belt conveyor line (2) and transported to the negative electrode welding device.

[0261] Step 2: The grooving device (B) grooves the cylindrical battery case and applies glue to the top of the cylindrical battery case. Finally, height detection and visual inspection are carried out to check the grooving results and eliminate defective products. The cylindrical battery cases that pass the inspection will be transferred to the flat belt conveyor line (2) and sent to the grooving device (B).

[0262] Step 3: The negative electrode welding device performs spot welding on the cylindrical battery case. The cylindrical battery case with the negative electrode welding completed will be transferred to the flat belt conveyor line (2) and sent to the positive electrode cap welding device (C).

[0263] Step 4: Positive electrode cap welding device (C) presses the positive electrode cap onto the electrode tab of the cell inside the cylindrical battery case to perform positive electrode cap welding. The cylindrical battery case with the positive electrode cap welded will be transferred to the flat belt conveyor line (2) and sent to the liquid injection device (D).

[0264] Step 5: The liquid injection device (D) injects battery fluid into the cylindrical battery case, and then filters out defective products by weighing the front and back of the cylindrical battery case. The cylindrical battery cases that pass the test are transferred to the flat belt conveyor line (2) and sent to the sealing device (E).

[0265] Step 6: The sealing device (E) will press the positive electrode cap that is welded to the tab on the cylindrical battery case into the cylindrical battery case, and then complete the sealing of the cylindrical battery case with the battery mold. Finally, the voltage and internal resistance of the cylindrical battery will be tested to eliminate defective products. The cylindrical batteries that pass the test will be transferred to the flat belt conveyor line (2) and sent to the squat sealing device (F).

[0266] Step 7: The squatting sealing device (F) applies anti-rust oil to the top of the cylindrical battery to perform basic maintenance, and then squats the top of the cylindrical battery to ensure that the height of the cylindrical battery meets the specifications. Finally, the height of the cylindrical battery is measured to eliminate defective products. The cylindrical batteries that pass the inspection are transferred to the flat belt conveyor line (2) and sent to the tray loading device (G).

[0267] Step 8: The tray loading device (G) will lift the empty box to one side of the flat belt conveyor (2), and then push the cylindrical battery on the flat belt conveyor (2) into the box, thus completing all the implementation steps of this automated production line.

[0268] Please see Figure 2 The gripper carrier (3) includes an unlocking cylinder (301), two unlocking blocks (302), two pins (303) and two grippers I (304).

[0269] The unlocking cylinder (301) has two telescopic ends on the same side, each fixed to an unlocking block (302) and controlled separately;

[0270] The unlocking block is U-shaped, with its opening facing away from the unlocking cylinder (301);

[0271] The gripper I (304) is composed of a left gripper arm and a right gripper arm. The center of the left gripper arm and the right gripper arm are respectively hinged to the pin (303) in a scissor shape. The pin (303) is fitted with an elastic element so that the left gripper arm and the right gripper arm can be reset when there is no external force. The end of the two arms that is close to the unlocking cylinder (301) corresponds to the extension end in the unlocking cylinder (301) and drives the extension of the two ends of the unlocking block (302). The unlocking cylinder (301) drives the unlocking block (302) to push the left gripper arm and the right gripper arm to rotate to open the gripper I (304), and closes the gripper I (304) when the unlocking cylinder (301) retracts the unlocking block (302).

[0272] Please see Figure 3 The shell insertion device (A) further includes a ring conveyor line A (4), an empty shell vibrating plate (A8), an empty shell transfer mechanism (A1), an empty shell detection mechanism (A2), a negative electrode insulating pad punching mechanism (A3), a negative electrode insulating pad shell insertion mechanism (A4), a negative electrode insulating pad pressing mechanism (A5), a shell insertion transfer mechanism (A6), and a separation mechanism (A7).

[0273] At least one set of gripper carriers (3) are installed on the circular conveyor line A (4) and numbered to distinguish them;

[0274] The flat belt conveyor (2) is connected to the gripper carrier (3) on the ring conveyor A (4) through the empty shell transfer mechanism (A1);

[0275] The empty shell transfer mechanism (A1), the empty shell detection mechanism (A2), the negative electrode insulating pad insertion mechanism (A4), the negative electrode insulating pad pressing mechanism (A5), and the insertion and transfer mechanism (A6) are sequentially arranged on the conveying route of the circular conveyor line A (4) along the conveying direction of the gripper carrier (3);

[0276] The empty shell vibratory plate (A8) is connected to the gripper carrier (3) set on the ring conveyor line A (4) through the empty shell transfer mechanism (A1) to transfer the cylindrical battery shell in the empty shell vibratory plate (A8) to the gripper carrier (3);

[0277] The negative electrode insulating pad punching mechanism (A3) is connected to the gripper carrier (3) set on the annular conveyor line A (4) through the negative electrode insulating pad inserting mechanism (A4) to insert the negative electrode insulating pad punched by the negative electrode insulating pad punching mechanism (A3) into the cylindrical battery case inside the gripper carrier (3);

[0278] The splitting mechanism (A7) is located at the edge of the flat belt conveyor (2) and close to the shell transfer mechanism (A6) to split and send out the cup-shaped carrier on the flat belt conveyor (2) after the transfer is completed.

[0279] Please see Figure 3 The empty shell vibrating plate (A8) is controlled by the principle of electromagnet energizing and de-energizing. The cylindrical battery shells inside the empty shell vibrating plate (A8) vibrate up and down to adjust the posture of the cylindrical battery shells and make them evenly arranged and sent out to supply the cylindrical battery shells required by the empty shell transfer mechanism (A1).

[0280] Please see Figure 3 and Figure 5 The empty shell transfer mechanism (A1) is a cantilever structure, which includes a transfer drive AI (A101), a gripper cylinder A (A102), and a gripper AII (A103).

[0281] The transfer drive AI (A101) is the end of the cantilever structure, fixed above the gripper cylinder A (A102), and moves between the empty shell vibratory plate (A8) and the annular conveyor line A (4).

[0282] The gripper AII (A103) is located below the gripper cylinder A (A102). The gripper cylinder A (A102) controls the gripper AII (A103) to grip the cylindrical battery shell provided by the empty shell vibratory plate (A8) and then transfer it to the gripper carrier (3) on the circular conveyor line A (4). After the gripper AII (A103) grips the cylindrical battery shell, it is released and reset.

[0283] Please see Figure 3 and Figure 6The empty shell detection mechanism (A2) further includes a motor AI (A201), a rocker A (A202), and a CCD image sensor A (A203).

[0284] One end of the rocker arm A (A202) is fixed to the rotating shaft of the motor AI (A201), and the other end is fixed to the CCD image sensor A (A203).

[0285] The motor AI (A201) controls the rocker A (A202) to move horizontally, so as to drive the CCD image sensor A (A203) to perform multi-position detection of the cylindrical battery shell in the gripper carrier (3);

[0286] Empty cylindrical battery casings that fail the inspection will be discarded and released from the gripper carrier (3).

[0287] Please see Figure 7 The negative electrode insulating pad insertion mechanism (A4) is a cylindrical structure, including a lifting drive A (A401), a pitch drive (A402), a rotating module A (A403), and at least two suction nozzles (A404).

[0288] The lifting drive A (A401) is fixed above the rotating module A (A403), and the pitch drive (A402) is fixed to the side. It is used to control the lifting, rotation and pitch movement of at least two suction nozzles (A404) fixed below the pitch drive (A402).

[0289] After the suction nozzle (A404) picks up the punched negative electrode insulating pad, it moves to the corresponding position in conjunction with the lifting drive A (A401), the rotating module A (A403) and the variable pitch drive (A402). The negative electrode insulating pad is released through the suction nozzle (A404) and falls into the cylindrical battery case, completing the reset of the negative electrode insulating pad after it is placed in the case.

[0290] Please see Figure 8 The negative electrode insulating pad pressing mechanism (A5) is a flat plate structure, including a pressing cylinder A (A501) and a pressing head A (A502).

[0291] The lower cylinder A (A501) serves as the top of the flat plate structure and is fixedly connected to the top of the pressure head A (A502);

[0292] After the cylindrical battery case is transported to the corresponding position, the pressing cylinder A (A501) pushes the pressing head A (A502) to press the negative electrode insulating pad inside the cylindrical battery case to the bottom of the cylindrical battery case, thus completing the pressing of the negative electrode insulating pad.

[0293] Please see Figure 3 and Figure 9The shell transfer mechanism (A6) is a cantilever structure, including transfer drive AII (A601), gripper III cylinder A (A602), gripper AIII (A603), gripper AIV cylinder (A604), and gripper AIV (A605).

[0294] The transfer drive AII (A601) is the end of the cantilever structure, fixed above the gripper III cylinder A (A602) and the gripper AIV cylinder (A604), and moves between the annular conveyor line A (4) and the flat belt conveyor line (2).

[0295] The gripper AIII (A603) is fixed below the gripper III cylinder A (A602). The gripper AIII (A603) is controlled by the gripper III cylinder A (A602) to pick up the battery cell to be put into the shell from the cup-shaped carrier on the flat belt conveyor (2), put it into the cylindrical battery shell in the gripper carrier (3) on the ring conveyor A (4), and then reset.

[0296] The gripper AIV (A605) is fixed below the gripper AIV cylinder (A604). The gripper AIV (A605) is controlled by the gripper AIV cylinder (A604) to grip the cylindrical battery case with the battery cell inserted from the gripper carrier (3) on the annular conveyor line A (4) when the casing transfer mechanism (A6) is reset, and put it into the cup-shaped carrier on the flat belt conveyor line (2).

[0297] Please see Figure 3 and Figure 10 The splitting mechanism (A7) further includes a motor AII (A701) and a screw (A702).

[0298] The motor AII (A701) is arranged along the direction of the flat belt conveyor line (2);

[0299] The screw (A702) is fixed to the shaft of motor AII (A701);

[0300] The motor AII (A701) rotates the screw (A702) to equidistantly separate the cup-shaped carriers on the flat belt conveyor line (2).

[0301] Please see Figure 11 The grooving device (B) further includes a ring conveyor line B (5), a handling device B (B1), a grooving mechanism (B2), a dispensing mechanism (B3), a height detection mechanism (B4), and a vision detection device (B5).

[0302] At least one set of gripper carriers (3) are installed on the circular conveyor line B (5) and numbered to distinguish them;

[0303] The flat belt conveyor (2) is connected to the gripper carrier (3) on the circular conveyor B (5) via the handling device B (B1);

[0304] The conveying device B (B1), at least one grooving mechanism (B2), at least one dispensing mechanism (B3), height detection mechanism (B4) and vision detection device (B5) are sequentially arranged on the conveying route of the circular conveyor line B (5) along the conveying direction of the gripper carrier (3).

[0305] Please see Figure 11 and Figure 12 The conveying device B (B1) is a cantilever structure with a central support and two arms that extend forward to the left and right. It includes two vertical drive BI (B101), two horizontal drive BI (B102), at least one gripper cylinder B (B103), and at least one gripper BII (B104).

[0306] The two horizontal drive BI (B102) are respectively the ends of the two arms of the cantilever structure, fixed to the side of the vertical drive BI (B101), and move horizontally and vertically between the flat belt conveyor (2) and the ring conveyor B (5).

[0307] The gripper cylinder B (B103) is fixed below the vertical drive BI (B101), and the gripper BII (B104) is located below the gripper cylinder B (B103). The gripper cylinder B (B103) controls the gripper BII (B104) to pick up the cylindrical battery case to be grooved from the cup-shaped carrier on the flat belt conveyor (2) and put it into the annular conveyor B (5). After the gripper carrier (3) on the annular conveyor B (5) clamps the cylindrical battery case, the gripper BII (B104) is released and, upon resetting, picks up the cylindrical battery case that has passed the test from the gripper carrier (3) on the annular conveyor B (5) and places it into the cup-shaped carrier on the flat belt conveyor (2).

[0308] Please see Figure 13 The grooving mechanism (B2) is a hollow square column structure, comprising a rotary drive B (B201), a vertical drive B1 (B202), a descending drive B (B203), a horizontal drive B1 (B204), a support head B (B205), a roller (B206), a rotating shaft B1 (B207), a support rod B1 (B208), and a lifting drive B1 (B209).

[0309] The descent drive B (B203) is fixed to the top side of the hollow square column structure above the support head B (B205);

[0310] The lifting drive BI (B209) serves as the bottom of the hollow square column structure and is fixed below the support rod BI (B208), on the same side as the lowering drive B (B203).

[0311] The descent drive B (B203) works in conjunction with the lifting drive BI (B209) to push the support head B (B205) and the support rod BI (B208) to move downward and upward respectively, so as to position the cylindrical battery case from the top and bottom.

[0312] The vertical drive BII (B202) is fixed to the top side of the square column hollow structure, above the horizontal drive BII (B204), on the different side from the descending drive B (B203).

[0313] The horizontal drive BII (B204) is fixed to the roller (B206) in the direction of the lifting drive BII (B209), and works with the vertical drive BII (B202) to control the horizontal and vertical movement of the roller (B206) to reach the position where the cylindrical battery case needs to be grooved.

[0314] The rotary drive B (B201) is located below the horizontal drive BII (B204) and drives the rotating shaft BI (B207) located above the support rod BI (B208) to rotate.

[0315] The rotary drive B (B201) works in conjunction with the horizontal drive BII (B204) to use rollers (B206) to groove the cylindrical battery casing at the desired location and depth.

[0316] Please see Figure 14 The dispensing mechanism (B3) is a hollow square column structure, comprising a rotating shaft drive B (B301), a vertical drive BIII (B302), a horizontal drive BIII (B303), a support rod BII (B304), a lifting drive BII (B305), a pressure head drive B (B306), a pressure head B (B307), a dispensing module (B308), and a rotating shaft BII (B309).

[0317] The pressure head drive B (B306) is fixed to the top side of the square column hollow structure above the pressure head B (B307);

[0318] The lifting drive BII (B305) serves as the bottom of the hollow square column structure and is fixed below the support rod BII (B304), on the same side as the pressure head drive B (B306).

[0319] The pressure head drive B (B306) works in conjunction with the lifting drive BII (B305) to push the pressure head B (B307) and the support rod BII (B304) to descend and lift, respectively, so as to position the cylindrical battery case from the top and bottom.

[0320] The vertical drive BIII (B302) is fixed to the top side of the square column hollow structure, above the horizontal drive BIII (B303), on the different side from the pressure head drive B (B306).

[0321] The horizontal drive BIII (B303) is fixed to the dispensing module (B308) in the direction of the pressure head drive B (B306), and works with the vertical drive BIII (B302) to control the horizontal and vertical movement of the dispensing module (B308) to reach the position where the cylindrical battery case needs to be dispensed.

[0322] The rotating shaft drive B (B301) is located below the horizontal drive BIII (B303) and drives the rotating shaft BII (B309) located above the support rod BII (B304) to rotate.

[0323] The rotating shaft drive B (B301) works in conjunction with the horizontal drive BIII (B303) to apply adhesive at the location where the cylindrical battery case needs to be adhesived using the dispensing module (B308).

[0324] Please see Figure 11 and Figure 15 The height detection mechanism (B4) is a square column structure, comprising at least one detection drive B (B401), at least one position sensor B (B402), at least one slider B (B403), at least one pressure block B (B404), an overall vertical drive B (B405), and a horizontal drive BIV (B406).

[0325] The horizontal drive BIV (B406) serves as the bottom of the square column structure and is located below the overall vertical drive B (B405), driving the height detection mechanism (B4) to move horizontally as a whole.

[0326] The overall vertical drive B (B405) is positioned above the horizontal drive BIV (B406) and drives the entire height detection mechanism (B4) except for the horizontal drive BIV (B406) to move vertically.

[0327] The detection drive B (B401) serves as the top of the square column structure, pushing the slider B (B403) fixed below it to slide, so that the pressure block B (B404) fixed on the slider B (B403) stops after hitting the top of the cylindrical battery case. At the same time, the position sensor B (B402) located above the slider B (B403) detects whether the height of the cylindrical battery case is qualified.

[0328] Empty shells that fail the inspection will be discarded and released from the gripper carrier (3).

[0329] Please see Figure 11 and Figure 16The visual inspection device (B5) further includes a horizontal drive BV (B501), a CCD image sensor B (B502), and a light source B (B503).

[0330] The horizontal drive BV (B501) is fixed to the light source B (B503) and the CCD image sensor B (B502), and drives the light source B (B503) and the CCD image sensor B (B502) to move horizontally together;

[0331] The CCD image sensor B (B502) performs visual inspection on the cylindrical battery case in the gripper carrier (3) to check the grooving results;

[0332] Cylindrical battery casings that fail inspection will be discarded and released from the gripper carrier (3).

[0333] Please see Figure 1 The negative electrode welding device further includes a conveying device and a spot welding mechanism;

[0334] The flat belt conveyor (2) is connected to the spot welding mechanism via a handling device;

[0335] The transport device transports the cylindrical battery case from the flat belt conveyor (2) to the spot welding mechanism, and after the negative electrode welding is completed, it transports the cylindrical battery case back to the flat belt conveyor (2) from the spot welding mechanism.

[0336] The spot welding mechanism is a hollow cylindrical structure, including battery fixing, welding needle driving, lower electrode and welding needle;

[0337] The battery is fixed as the side of the columnar structure, which is used to position the cylindrical battery casing at the lower electrode position from both sides.

[0338] The welding needle drive is the top of a columnar structure, fixed above the welding needle, and is used to push the welding needle, which serves as the upper electrode, through the small hole in the center of the cell to the bottom of the cylindrical battery case to weld the negative electrode tab to the bottom of the cylindrical battery case.

[0339] Please see Figure 17 The positive electrode cap welding device (C) includes a ring conveyor line C (6), a handling device C (C1), an electrode ear induction mechanism (C2), a positive electrode cap vibrating plate (C3), and a positive electrode cap welding mechanism (C4).

[0340] At least one set of gripper carriers (3) are installed on the circular conveyor line C (6) and numbered to distinguish them;

[0341] The flat belt conveyor (2) is connected to the gripper carrier (3) on the circular conveyor C (6) via the handling device C (C1);

[0342] The conveying device C (C1), the electrode induction mechanism (C2), and the positive electrode cap welding mechanism (C4) are sequentially arranged on the conveying route of the circular conveyor line C (6) along the conveying direction of the gripper carrier (3);

[0343] The positive electrode cap vibratory plate (C3) is connected to the gripper carrier (3) set on the annular conveyor line C (6) through the positive electrode cap welding mechanism (C4) to provide the positive electrode cap in the positive electrode cap vibratory plate (C3) to the positive electrode cap welding mechanism (C4) to complete the positive electrode cap welding.

[0344] Please see Figure 17 and Figure 18 The conveying device C (C1) is a cantilever structure with a central support and two arms that extend forward to the left and right. It includes two vertical drive CI (C101), two horizontal drive CI (C102), at least one gripper cylinder C (C103), and at least one gripper CII (C104).

[0345] The two horizontal drive CIs (C102) are respectively the ends of the two arms of the cantilever structure, fixed to the side of the vertical drive CI (C101), and move horizontally and vertically between the flat belt conveyor (2) and the ring conveyor C (6).

[0346] The gripper cylinder C (C103) is fixed below the vertical drive CI (C101), and the gripper CII (C104) is located below the gripper cylinder C (C103). The gripper CII (C104) is controlled by the gripper cylinder C (C103) to pick up the cylindrical battery case to be welded with the positive electrode cap from the cup-shaped carrier on the flat belt conveyor (2) and put it into the annular conveyor C (6). After the gripper carrier (3) on the annular conveyor C (6) clamps the cylindrical battery case, the gripper CII (C104) is released and, when resetting, picks up the cylindrical battery case with the completed positive electrode cap welding from the gripper carrier (3) on the annular conveyor C (6) and places it into the cup-shaped carrier on the flat belt conveyor (2).

[0347] Please see Figure 19 The electrode sensing mechanism (C2) is divided into upper and lower parts. The lower part is a hollow columnar structure, which includes a rotation drive C (C201), a square shaft C (C202), an unlocking drive C (C203), a slider C (C204), a fork (C205), a push rod C (C206), a swing rod C (C207), and a gripper CIII (C208). The upper part includes an interruption sensor (C209).

[0348] The rotary drive C (C201) serves as the bottom of the lower hollow column and is fixed to the bottom of the square shaft C (C202);

[0349] The slider C (C204) has a hollow structure. The lower part of the slider C (C204) has a square hole for the square shaft C (C202) to be inserted from the top. When the unlocking drive C (C203) is unlocked, the upper part of the slider C (C204) can be synchronized with the lower part of the slider C (C204) through the fork (C205) to cooperate with the rotation drive C (C201) to rotate.

[0350] The unlocking drive C (C203) serves as the side of the lower hollow column, with the fork (C205) fixed above it. When unlocked, the fork (C205) is located in the hollow area of ​​the slider, causing the lower part of the slider C (C204) to rotate freely without synchronizing with the upper part of the slider C (C204). When unlocked, the fork (C205) is pushed to move along the direction of the square axis C (C202) to synchronize with the upper part of the slider C (C204), thereby driving the push rod C (C206) fixed above the slider C (C204) to move and rotate synchronously.

[0351] The swing arm C (C207) is positioned above the top rod C (C206), controlling the gripper CIII (C208) positioned above the swing arm C (C207) to clamp the cylindrical battery case and cooperate with the rotation drive C (C201) to rotate;

[0352] The blocking part of the blocking sensor (C209) is located at the position of the cylindrical battery tab. When the cylindrical battery case is rotated, the tab will first block the blocking sensor (C209). Once the sensor is turned on, the tab has been rotated to the required position.

[0353] Please see Figure 17 The positive electrode cap vibrating plate (C3) uses the principle of electromagnet energization and de-energization to control the positive electrode cap inside the positive electrode cap vibrating plate (C3) to jump up and down to adjust the front and back of the positive electrode cap and make them evenly arranged. It can continuously supply the positive electrode battery cap required by the positive electrode cap welding mechanism (C4).

[0354] Please see Figure 20 The positive electrode cap welding mechanism (C4) is a hollow columnar structure, comprising a positive electrode cap contact block (C401), a positive electrode cap material channel (C402), an electromagnet (C403), a sensor C (C404), a support block C (C405), a slide bar C (C406), a motor C (C407), an eccentric wheel C (C408), an eccentric rocker C (C409), a cylinder C (C410), a guide rod C (C411), a battery pressing block C (C412), an electrode tab pressing block C (C413), a laser channel (C414), and a laser welding machine;

[0355] The positive electrode cap feed channel (C402) is located on one side of a columnar structure above the positive electrode cap receiving block (C401), providing the positive electrode cap from the positive electrode cap vibrating plate (C3);

[0356] The sensor C (C404) is fixed to the side of the positive electrode cap block (C401) to sense whether there is an obstacle in front of the positive electrode cap block (C401). When the positive electrode cap reaches the front of the positive electrode cap block (C401), the sensor C (C404) will be triggered to control the electromagnet (C403) embedded in the positive electrode cap block (C401) to be magnetized so as to attract the positive electrode cap.

[0357] The motor C (C407) serves as the bottom of the columnar structure, driving the eccentric wheel C (C408) located above it to rotate, thereby causing the eccentric rocker C (C409) fixed inside the eccentric wheel C (C408) to rotate, so that the slide bar C (C406) hinged on the eccentric rocker C (C409) moves horizontally, causing the positive electrode cap block (C401) fixed on the slide bar C (C406) to magnetically attract the positive electrode cap close to the positive electrode tab;

[0358] The support block C (C405) is located at the bottom of the positive electrode cap block (C401), corresponding to the battery clamping block C (C412) under the tab clamping block C (C413). The support block C (C405) and the battery clamping block C (C412) cooperate to fix the cylindrical battery.

[0359] The cylinder C (C410) is located on both sides of the battery pressing block C (C412). It pushes the fixed guide rod C (C411) to drive the tab pressing block C (C413) fixed to the other end of the guide rod C (C411). Together with the support block C (C405) and the battery pressing block C (C412), the cylinder presses the cylindrical battery casing, while the tab pressing block C (C413) presses the tab onto the positive electrode cap.

[0360] The laser channel (C414) is located behind and below the tab pressing block C (C413), corresponding to the area to be welded. It is equipped with a laser welding machine. After the cylindrical battery case is pressed together with the tab and the positive electrode cap, the positive electrode cap is welded in conjunction with the laser welding machine.

[0361] Please see Figure 21 The liquid injection device (D) further includes a ring conveyor line D (7), a weighing mechanism I (D1), a liquid injection tray transfer mechanism (D2), a liquid injection mechanism (D3), and a weighing mechanism II (D4).

[0362] At least one injection tray transfer mechanism (D2) is installed on the circular conveyor line D (7) and numbered to distinguish it;

[0363] The flat belt conveyor (2) is connected to the liquid injection tray transfer mechanism (D2) on the ring conveyor line D (7) through weighing mechanism I (D1) and weighing mechanism II (D4);

[0364] The weighing mechanism I (D1), the liquid injection mechanism (D3) and the weighing mechanism II (D4) are sequentially arranged on the conveying route of the circular conveyor line D (7) along the conveying direction of the liquid injection tray transfer mechanism (D2).

[0365] Please see Figure 21 The weighing mechanism I (D1) further includes a robotic arm I (D101) and at least one electronic scale I (D102).

[0366] The robotic arm I (D101) is positioned between the flat belt conveyor (2), the weighing mechanism I (D1), and the circular conveyor D (7). It transfers the cylindrical battery cases to be injected from the flat belt conveyor (2) to the weighing mechanism I (D1) one by one, records the initial weight through the electronic scale I (D102), and then transfers the cylindrical battery cases from the weighing mechanism I (D1) to the injection tray transfer mechanism (D2).

[0367] Please see Figure 21 and Figure 22 The liquid injection tray transfer mechanism (D2) is a platform structure, including a liquid injection tray (D201), a motor D (D202), a servo motor D (D203), a speed-multiplying chain (D204), a lifting and positioning D (D205), a blocking cylinder D (D206), a slider D (D207), and a guide rail D (D208).

[0368] The injection tray (D201) is provided with at least one slot and is numbered to distinguish them;

[0369] The motor D (D202) is connected to a speed-multiplying chain (D204) to move the liquid injection tray (D201) horizontally.

[0370] The servo motor D (D203) is fixed to the slider D (D207), and the slider D (D207) is set and slides on the guide rail D (D208) to vertically move the liquid injection tray (D201).

[0371] The lifting positioning D (D205) and the blocking cylinder D (D206) are respectively located at the bottom and side of the platform structure to limit the movement boundary of the liquid injection tray (D201).

[0372] Please see Figure 23 The injection mechanism (D3) is a platform structure, including at least one injection nozzle (D301), at least one injection controller (D302), a horizontal drive D (D303), a vertical drive D (D304), and at least one proximity drive D (D305).

[0373] The injection controller (D302) serves as the top of the platform structure and is connected to the injection nozzle (D301) via a conduit. Together with the horizontal drive D (D303) and vertical drive D (D304), which also serve as the top of the platform structure, it drives the platform structure to move horizontally and vertically.

[0374] The near drive D (D305) serves as the bottom of the platform structure, with the injection nozzle (D301) fixed below it.

[0375] After the injection tray (D201) is delivered to the designated injection position, it moves close to the drive D (D305) to move the injection nozzle (D301) closer to the cylindrical battery case, and then the battery fluid is injected.

[0376] Please see Figure 21 The weighing mechanism II (D4) further includes a robotic arm II (D401) and at least one electronic scale II (D402).

[0377] The robotic arm II (D401) is positioned between the flat belt conveyor (2), the weighing mechanism II (D4), and the circular conveyor D (7). It transfers the cylindrical battery cases that have been filled with liquid from the liquid filling tray transfer mechanism (D2) on the circular conveyor D (7) to the weighing mechanism II (D4). The final weight is recorded by the electronic scale II (D402). The cylindrical battery cases that meet the weight requirements are transferred by the robotic arm II (D401) from the weighing mechanism II (D4) to the cup-shaped carrier on the flat belt conveyor (2).

[0378] Cylindrical battery cases that fail inspection will be removed when the robotic arm II (D401) transfers the cylindrical battery cases to the electronic scale II (D402) next time.

[0379] Please see Figure 21 The sealing device (E) further includes a ring conveyor line E (8), a handling device E (E1), a positive electrode pre-compression mechanism (E2), a positive electrode pressing mechanism (E3), a positive electrode first sealing mechanism (E4), a positive electrode second sealing mechanism (E5), an electrical testing module (E6), and a finished product unloading mechanism (E7).

[0380] At least one set of gripper carriers (3) are installed on the circular conveyor line E (8) and numbered to distinguish them;

[0381] The flat belt conveyor (2) is connected to the gripper carrier (3) on the circular conveyor line E (8) via the handling device E (E1);

[0382] The conveying device E (E1), the positive electrode pre-pressing mechanism (E2), the positive electrode pressing mechanism (E3), at least one positive electrode sealing mechanism (E4), at least one positive electrode double sealing mechanism (E5), the electrical testing module (E6), and the finished product unloading mechanism (E7) are sequentially arranged on the conveying route of the circular conveyor line E (8) along the conveying direction of the gripper carrier (3).

[0383] Please see Figure 21 and Figure 24 The conveying device E (E1) is a cantilever structure with a central support and two arms that extend forward to the left and right. It includes two vertical drive EI (E101), two horizontal drive EI (E102), at least one gripper cylinder E (E103), and at least one gripper EII (E104).

[0384] The two horizontal drive EI (E102) are respectively the ends of the two arms of the cantilever structure, fixed to the side of the vertical drive EI (E101), and move horizontally and vertically between the flat belt conveyor (2), the flat belt conveyor (2) and the ring conveyor E (8).

[0385] The gripper cylinder E (E103) is fixed below the vertical drive EI (E101), and the gripper EII (E104) is located below the gripper cylinder E (E103). The gripper cylinder E (E103) controls the gripper EII (E104) to pick up the cylindrical battery case to be sealed from the cup-shaped carrier on the flat belt conveyor (2) and transfer it to the annular conveyor E (8). After the gripper carrier (3) on the annular conveyor E (8) clamps the cylindrical battery case, the gripper EII (E104) is released.

[0386] Please see Figure 25 The positive electrode pre-compression mechanism (E2) is a platform structure with two sides for positive electrode pre-compression of the central cylindrical battery casing. The side near the positive electrode cap includes a rotating cylinder E (E201), a rotating shaft E (E202), a spring E (E203), and a pressure roller E (E204), while the side near the electrode tab includes a support block cylinder E (E205) and a support block E (E206).

[0387] Please see Figure 26 The positive electrode pressing mechanism (E3) is a platform structure with three sides for pressing the positive electrode into the central cylindrical battery casing. The side near the positive electrode cap includes a stop cylinder E (E301) and a stop block E (E302). The side above the cylindrical battery casing includes a pressing head cylinder E (E303) and a pressing head E (E304). The side near the tab includes a cap push block cylinder (E305), a cap push block E (E306), a tab push block cylinder E (E307), and a tab push block E (E308).

[0388] The support block cylinder E (E205) is fixed to the support block E (E206), and the support point of the support block E (E206) corresponds to the lower part of the pole tab;

[0389] The rotating cylinder E (E201) is fixed to the rotating shaft E (E202), the pressure roller E (E204) is fixed to the rotating shaft E (E202) at one end near the cylindrical battery shell, and the two ends of the spring E (E203) are fixed to the rotating cylinder E (E201) and the rotating shaft E (E202).

[0390] After the support block cylinder E (E205) pushes the support block E (E206) against one side of the positive electrode tab, the rotating shaft cylinder E (E201) pushes the rotating shaft E (E202), and the pressure roller E (E204) fixed to one end of the rotating shaft E (E202) in conjunction with the spring E (E203) rotates to press the positive electrode cap down from the other side of the positive electrode tab, thus completing the positive electrode pre-compression;

[0391] The electrode pusher cylinder E (E307) is fixed to the electrode pusher block E (E308) at one end near the electrode, and the push point of the electrode pusher block E (E308) corresponds to the lower part of the electrode.

[0392] The cap pusher cylinder (E305) is fixed to the cap pusher E (E306) at one end near the electrode tab, and is fixed above the electrode pusher E (E308);

[0393] The stop cylinder E (E301) is fixed to one end of the positive electrode cap with stop block E (E302), and the stop point of stop block E (E302) corresponds to the upper part of the positive electrode cap;

[0394] The pressure head cylinder E (E303) is fixed to one end of the cylinder near the top of the cylindrical battery case, and the pressure point of the pressure head E (E304) corresponds to the top of the cylindrical battery case.

[0395] The stop cylinder E (E301) pushes the stop block E (E302) to restrict the movement boundary on one side of the positive electrode cap. The tab push block cylinder E (E307) pushes the tab push block E (E308) to fold the tab. Then, the cap push block cylinder (E305) pushes the cap push block E (E306) to push the positive electrode cap above the cylindrical battery casing. Finally, the pressure head cylinder E (E303) pushes the pressure head E (E304) to press the cap into the cylindrical battery casing, completing the positive electrode pressing.

[0396] Please see Figure 27 The positive electrode sealing mechanism (E4) is a columnar structure, comprising a servo press EI (E401), a cap press head EI (E402), a sealing mold (E403), and a battery fixing EI (E404).

[0397] Please see Figure 28The positive electrode double sealing mechanism (E5) is a columnar structure, including a servo press EII (E501), a cap press head EII (E502), a double sealing mold (E503), and a battery fixing EII (E504).

[0398] The first sealing mold (E403) and the second sealing mold (E503) are different models, and are used to initially flatten the top of the cylindrical battery case and to press the inner circumference of the flattened cylindrical battery case to a deeper depth, respectively.

[0399] The servo press EI (E401) serves as the top of a columnar structure and is fixed above the cap press head EI (E402);

[0400] The compression mold (E403) covers the cap head EI (E402);

[0401] The battery fixing EI (E404) serves as the bottom of the columnar structure, fixing the cylindrical battery casing from both sides of the cylindrical battery casing.

[0402] The servo press EI (E401) pushes the cap press head EI (E402) to drive the sealing die (E403) downward, and works with the battery fixing EI (E404) to fix the cylindrical battery case to complete the sealing of the battery positive terminal;

[0403] The servo press EII (E501) serves as the top of a columnar structure and is fixed above the cap press head EII (E502);

[0404] The second sealing mold (E503) covers the cap head EII (E502);

[0405] The battery fixing EII (E504) serves as the bottom of the columnar structure, fixing the cylindrical battery casing from both sides of the cylindrical battery casing.

[0406] The servo press EII (E501) pushes the cap press head EII (E502) to drive the second sealing mold (E503) downward, and works with the battery fixing EII (E504) to fix the cylindrical battery case to complete the second sealing of the battery positive electrode.

[0407] Please see Figure 21 and Figure 29 The electrical measurement module (E6) further includes probe driver I (E601), probe I (E602), probe driver II (E603) and probe II (E604).

[0408] The probe driver I (E601) serves as the top of the electrical testing module (E6) to fix probe I (E602) towards the positive electrode of the cylindrical battery case, while the probe driver II (E603) serves as the bottom of the electrical testing module (E6) to fix probe II (E604) towards the negative electrode of the cylindrical battery case.

[0409] After the cylindrical battery reaches the designated position, the probe drive I (E601) and probe drive II (E603) push probe I (E602) and probe II (E604) to contact the top and bottom of the battery respectively to detect whether the battery has voltage and internal charge.

[0410] Cylindrical batteries that fail the test will be discarded and released from the gripper carrier (3).

[0411] Please see Figure 21 and Figure 30 The finished product unloading mechanism (E7) is a cantilever structure, including a gripper cylinder EII (E701), at least one gripper EIII (E702), a rotary drive E (E703), a rotating shaft E (E704), a belt E (E705), and a lifting drive E (E706).

[0412] The lifting drive E (E706) serves as the bottom of the cantilever structure, driving the entire cantilever to move up and down.

[0413] The rotating shaft E (E704) serves as the top of the cantilever structure, with a gripper cylinder EII (E701) fixed to one side and a belt E (E705) fitted on the other side to rotate synchronously with the rotary drive E (E703) located below.

[0414] At least one gripper EIII (E702) is fixed to the underside of gripper cylinder EII (E701);

[0415] The gripper cylinder EII (E701) controls the gripper EIII (E702) to grip the cylindrical battery. After the cylindrical battery is rotated 90 degrees by the rotary drive E (E703) and the belt E (E705), the gripper EIII (E702) is released to place the cylindrical battery on the flat belt conveyor line (2).

[0416] Please see Figure 31 The squatting sealing device (F) further includes a ring conveyor line F (9), a transfer mechanism F (F1), an oiling mechanism (F2), a squatting sealing mechanism (F3), and a height detection mechanism (F4).

[0417] At least one set of gripper carriers (3) are installed on the circular conveyor line F (9) and numbered to distinguish them;

[0418] The flat belt conveyor (2) is connected to the gripper carrier (3) on the ring conveyor F (9) via the transfer mechanism F (F1);

[0419] The transfer mechanism F (F1), at least one oiling mechanism (F2), at least one squatting sealing mechanism (F3), and height detection mechanism (F4) are sequentially arranged on the conveying route of the circular conveyor line F (9) along the conveying direction of the gripper carrier (3).

[0420] Please see Figure 31 and Figure 32 The transfer mechanism F (F1) is a cantilever structure, including a gripper cylinder FII (F101), at least one gripper FIII (F102), a rotary drive F (F103), a rotating shaft F (F104), a belt F (F105), and a lifting drive F (F106).

[0421] The lifting drive FI (F106) serves as the bottom of the cantilever structure, driving the entire cantilever to move up and down.

[0422] The rotating shaft F (F104) serves as the top of the cantilever structure, with a gripper cylinder FII (F101) fixed to one side and a belt F (F105) fitted on the other side to rotate synchronously with the rotation drive F (F103) located below.

[0423] The at least one gripper FIII (F102) is fixedly attached to the lower part of the gripper cylinder FII (F101);

[0424] The gripper cylinder FII (F101) controls the gripper FIII (F102) to grip the cylindrical battery from the flat belt conveyor (2) during loading. Then, in conjunction with the rotation drive F (F103) and belt F (F105), the cylindrical battery is rotated 90 degrees. Finally, the cylindrical battery is clamped by the gripper carrier (3) on the annular conveyor F (9), and the gripper FIII (F102) is released at the same time to complete the loading.

[0425] The gripper cylinder FII (F101) controls the gripper FIII (F102) to pick up the cylindrical battery from the gripper carrier (3) on the circular conveyor line F (9) during unloading. Then, in conjunction with the rotation drive F (F103) and the belt F (F105), the cylindrical battery is rotated 90 degrees. Finally, the gripper FIII (F102) is released to place the cylindrical battery on the flat belt conveyor line (2) to complete the unloading.

[0426] Please see Figure 33 The oiling mechanism (F2) is a cantilever structure, including a lifting drive FII (F201), an oiling fixture cylinder (F202), an oil inlet connector (F203), and an oiling fixture (F204).

[0427] The oiling fixture cylinder (F202) serves as the top of the cantilever structure, pushing the oiling fixture (F204) fixed below to perform oiling.

[0428] The oiling fixture (F204) is fixed below the oiling fixture cylinder (F202), and the side is fixed with an oil inlet connector (F203) to supply rust-preventive oil to remove the highly corrosive electrolyte at the positive terminal of the battery and perform battery maintenance.

[0429] The lifting drive FII (F201) serves as the bottom of the cantilever structure and controls the lifting and moving of the entire cantilever.

[0430] Please see Figure 34 The squatting sealing mechanism (F3) is a columnar structure, comprising a servo press F (F301), a cap pressing head F (F302), a squatting sealing mold (F303), and a battery fixing F (F304).

[0431] The servo press F (F301) serves as the top of a columnar structure and is fixed above the cap press head F (F302);

[0432] The squatting sealing mold (F303) covers the cap pressing head F (F302);

[0433] The battery fixing F (F304) serves as the bottom of the columnar structure, fixing the cylindrical battery from both sides of the cylindrical battery.

[0434] The servo press F (F301) pushes the cap press head F (F302) to drive the squat sealing mold (F303) downward, and works with the battery fixing F (F304) to fix the cylindrical battery case to complete the battery squat sealing.

[0435] Please see Figure 35 The height detection mechanism (F4) is a plate-shaped structure, including a pressure head cylinder F (F401), a pressure head F (F402), a sliding plate cylinder F (F403), a sliding plate F (F404), and a position sensor F (F405).

[0436] The pressure head cylinder F (F401) serves as the top of a plate-like structure, controlling the pressure head F (F402) located below to fix the cylindrical battery.

[0437] The pressure head F (F402) is a clamping structure used to support and fix the cylindrical battery from the top and bottom.

[0438] The position sensor F (F405) is installed below the sliding plate cylinder F (F403). The sliding plate cylinder F (F403) moves the sliding plate F (F404) to detect the height of the cylindrical battery.

[0439] Please see Figure 31 The tray loading device (G) further includes an empty box lifting mechanism (G1) and a battery loading mechanism (G2).

[0440] Please see Figure 36 The empty box lifting mechanism (G1) is a columnar structure, including an L-shaped carrier (G101), a carrier cylinder (G102), a lifting drive G (G103), and a pin G (G104).

[0441] Please see Figure 37 The battery insertion mechanism (G2) further includes a battery pusher cylinder (G201) and a battery pusher module (G202).

[0442] Please see Figure 31 and Figure 36 Above the empty box lifting mechanism (G1) is a flat belt conveyor (2), which works in conjunction with the battery box loading mechanism (G2) located next to the flat belt conveyor (2) to load the battery into the box.

[0443] The battery pusher cylinder (G201) is fixedly connected to the battery pusher module (G202).

[0444] The lifting drive G (G103) serves as the bottom of the columnar structure, and is hinged to the pin G (G104) to control the lifting and moving of the L-shaped carrier (G101) located above.

[0445] The carrier cylinder (G102) is fixed to the L-shaped carrier (G101) and controls the L-shaped carrier (G101) to tilt appropriately to ensure that the battery box does not tip over.

[0446] Please see Figure 37 The battery push plate module (G202) further includes an L-shaped top plate (G20201), an extension plate (G20202), a slider G (G20203), and a connecting rod (G20204).

[0447] The extension plate (G20202) is located on the top of the L-shaped top plate (G20201). The bottom sides of the L-shaped top plate (G20201) are respectively hinged to one end of the connecting rod (G20204), and the other end of the connecting rod (G20204) is fixedly connected to the slider G (G20203).

[0448] Please see Figure 31 and Figure 37 When the battery pusher cylinder (G201) drives the L-shaped top plate (G20201) to descend, one end of the connecting rod (G20204) descends at the same time, and the other end of the connecting rod (G20204) drives the slider G (G20203) to move horizontally, thereby driving the extension plate (G20202) to push the cylindrical battery on the flat belt conveyor line (2) into the box.

[0449] This invention improves the traditional battery manufacturing process and integrates the cylindrical battery manufacturing process into an automated production line. In addition to allowing the cylindrical battery casing to be placed in a designated position on a flat belt conveyor for further processing based on its processing level, it also includes an inspection mechanism to detect and eliminate unqualified semi-finished products in real time, achieving low manpower requirements, low production cost waste, high production efficiency, and consistent product quality.

[0450] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automated production line for performing cylindrical battery manufacturing processes, characterized in that, It mainly includes a flat belt conveyor base (1), a flat belt conveyor (2), a cup-shaped carrier, a gripper carrier (3), a shell-entry device (A), a grooving device (B), a negative electrode welding device, a positive electrode cap welding device (C), a liquid injection device (D), a sealing device (E), a squatting sealing device (F), and a tray loading device (G). The flat belt conveyor base (1) is set under the flat belt conveyor (2) and at least one cup-shaped carrier is placed thereon. The cup-shaped carrier can be placed on the flat belt conveyor base (1) to carry the battery cell or battery casing that is being processed. The casing insertion device (A), negative electrode welding device, grooving device (B), positive electrode cap welding device (C), liquid injection device (D), sealing device (E), squatting sealing device (F), and tray loading device (G) are arranged sequentially along the conveying direction of the flat belt conveyor line (2); each of the casing insertion device (A), grooving device (B), positive electrode cap welding device (C), sealing device (E), and squatting sealing device (F) is equipped with at least one gripper carrier (3) to transport the cylindrical battery casing into the device for processing; The gripper carrier (3) is configured in the casing device (A), the grooving device (B), the positive electrode cap welding device (C), the sealing device (E), and the squatting sealing device (F) to realize the positioning and transfer operation of the cylindrical battery; The casing insertion device (A) has a ring conveyor line A (4), an empty casing vibrating plate (A8), a CCD image sensor A (A203), a negative electrode insulating pad casing insertion mechanism (A4), a negative electrode insulating pad pressing mechanism (A5), and a casing transfer mechanism (A6), which are used to automatically complete the insertion of the battery cell and the negative electrode insulating pad and the detection and screening of qualified empty casings. The grooving device (B) includes a grooving mechanism (B2), a dispensing mechanism (B3), a height detection mechanism (B4), and a vision inspection device (B5) to realize the positioning grooving and defect detection of the battery casing. The liquid injection device (D) includes a weighing mechanism I (D1), a weighing mechanism II (D4), and a liquid injection mechanism (D3) for screening out defective products that do not meet the liquid injection standards; The sealing device (E) includes an electrical testing module (E6) for performing finished product quality inspection and rejecting defective products; The squatting sealing device (F) performs anti-rust oil coating and height dimension correction operations after the cylindrical battery is sealed; The tray loading device (G) includes an empty box lifting mechanism (G1) and a battery loading mechanism (G2) to push qualified finished products into the battery box for storage. The steps for performing the cylindrical battery manufacturing process are as follows: Step 1: The casing device (A) uses CCD image sensing technology to screen qualified cylindrical battery empty casings and sequentially inserts negative electrode insulating pads and battery cells. The cylindrical battery casings that have been installed will be transferred to the flat belt conveyor line (2) and transported to the negative electrode welding device. Step 2: The grooving device (B) grooves the cylindrical battery case and applies glue to the top of the cylindrical battery case. Finally, height detection and visual inspection are carried out to check the grooving results and eliminate defective products. The cylindrical battery cases that pass the inspection will be transferred to the flat belt conveyor line (2) and sent to the grooving device (B). Step 3: The negative electrode welding device performs spot welding on the cylindrical battery case. The cylindrical battery case with the negative electrode welding completed will be transferred to the flat belt conveyor line (2) and sent to the positive electrode cap welding device (C). Step 4: Positive electrode cap welding device (C) presses the positive electrode cap onto the electrode tab of the cell inside the cylindrical battery case to perform positive electrode cap welding. The cylindrical battery case with the positive electrode cap welded will be transferred to the flat belt conveyor line (2) and sent to the liquid injection device (D). Step 5: The liquid injection device (D) injects battery fluid into the cylindrical battery case, and then filters out defective products by weighing the front and back of the cylindrical battery case. The cylindrical battery cases that pass the test are transferred to the flat belt conveyor line (2) and sent to the sealing device (E). Step 6: The sealing device (E) will press the positive electrode cap that is welded to the tab on the cylindrical battery case into the cylindrical battery case, and then complete the sealing of the cylindrical battery case with the battery mold. Finally, the voltage and internal resistance of the cylindrical battery will be tested to eliminate defective products. The cylindrical batteries that pass the test will be transferred to the flat belt conveyor line (2) and sent to the squat sealing device (F). Step 7: The squatting sealing device (F) applies anti-rust oil to the top of the cylindrical battery to perform basic maintenance, and then squats the top of the cylindrical battery to ensure that the height of the cylindrical battery meets the specifications. Finally, the height of the cylindrical battery is measured to eliminate defective products. The cylindrical batteries that pass the inspection are transferred to the flat belt conveyor line (2) and sent to the tray loading device (G). Step 8: The tray loading device (G) will lift the empty box to one side of the flat belt conveyor (2), and then push the cylindrical battery on the flat belt conveyor (2) into the box, thus completing all the implementation steps of this automated production line.

2. The automated production line according to claim 1, characterized in that, The gripper carrier (3) includes an unlocking cylinder (301), two unlocking blocks (302), two pins (303) and two grippers I (304). The unlocking cylinder (301) has two telescopic ends on the same side, each fixed to an unlocking block (302) and controlled separately; The unlocking block is U-shaped, with its opening facing away from the unlocking cylinder (301); The gripper I (304) is composed of a left gripper arm and a right gripper arm. The center of the left gripper arm and the right gripper arm are respectively hinged to the pin (303) in a scissor shape. The pin (303) is fitted with an elastic element so that the left gripper arm and the right gripper arm can be reset when there is no external force. The end of the two arms that is close to the unlocking cylinder (301) corresponds to the extension end in the unlocking cylinder (301) and drives the extension of the two ends of the unlocking block (302). The unlocking cylinder (301) drives the unlocking block (302) to push the left gripper arm and the right gripper arm to rotate to open the gripper I (304), and closes the gripper I (304) when the unlocking cylinder (301) retracts the unlocking block (302).

3. The automated production line according to claim 1, characterized in that, The shell insertion device (A) further includes a ring conveyor line A (4), a shell vibrating plate (A8), a shell transfer mechanism (A1), a shell detection mechanism (A2), a negative electrode insulating pad punching mechanism (A3), a negative electrode insulating pad shell insertion mechanism (A4), a negative electrode insulating pad pressing mechanism (A5), a shell insertion transfer mechanism (A6), and a separation mechanism (A7). At least one set of gripper carriers (3) are installed on the circular conveyor line A (4) and numbered to distinguish them; The flat belt conveyor (2) is connected to the gripper carrier (3) on the ring conveyor A (4) through the empty shell transfer mechanism (A1); The empty shell transfer mechanism (A1), the empty shell detection mechanism (A2), the negative electrode insulating pad insertion mechanism (A4), the negative electrode insulating pad pressing mechanism (A5), and the insertion and transfer mechanism (A6) are sequentially arranged on the conveying route of the circular conveyor line A (4) along the conveying direction of the gripper carrier (3); The empty shell vibratory plate (A8) is connected to the gripper carrier (3) set on the ring conveyor line A (4) through the empty shell transfer mechanism (A1) to transfer the cylindrical battery shell in the empty shell vibratory plate (A8) to the gripper carrier (3); The negative electrode insulating pad punching mechanism (A3) is connected to the gripper carrier (3) set on the annular conveyor line A (4) through the negative electrode insulating pad inserting mechanism (A4) to insert the negative electrode insulating pad punched by the negative electrode insulating pad punching mechanism (A3) into the cylindrical battery case inside the gripper carrier (3); The splitting mechanism (A7) is located at the edge of the flat belt conveyor (2) and close to the shell transfer mechanism (A6) to split and send out the cup-shaped carrier on the flat belt conveyor (2) after the transfer is completed.

4. The automated production line according to claim 3, characterized in that, The empty shell vibrating plate (A8) is controlled by the principle of electromagnet energizing and de-energizing. The cylindrical battery shells inside the empty shell vibrating plate (A8) vibrate up and down to adjust the posture of the cylindrical battery shells and make them evenly arranged and sent out to supply the cylindrical battery shells required by the empty shell transfer mechanism (A1).

5. The automated production line according to claim 3, characterized in that, The empty shell transfer mechanism (A1) is a cantilever structure, which includes a transfer drive AI (A101), a gripper cylinder A (A102), and a gripper AII (A103). The transfer drive AI (A101) is the end of the cantilever structure, fixed above the gripper cylinder A (A102), and moves between the empty shell vibratory plate (A8) and the annular conveyor line A (4). The gripper AII (A103) is located below the gripper cylinder A (A102). The gripper cylinder A (A102) controls the gripper AII (A103) to grip the cylindrical battery shell provided by the empty shell vibratory plate (A8) and then transfer it to the gripper carrier (3) on the circular conveyor line A (4). After the gripper AII (A103) grips the cylindrical battery shell, it is released and reset.

6. The automated production line according to claim 3, characterized in that, The empty shell detection mechanism (A2) further includes a motor AI (A201), a rocker A (A202), and a CCD image sensor A (A203). One end of the rocker arm A (A202) is fixed to the rotating shaft of the motor AI (A201), and the other end is fixed to the CCD image sensor A (A203). The motor AI (A201) controls the rocker A (A202) to move horizontally, so as to drive the CCD image sensor A (A203) to perform multi-position detection of the cylindrical battery shell in the gripper carrier (3); Empty cylindrical battery casings that fail the inspection will be discarded and released from the gripper carrier (3).

7. The automated production line according to claim 3, characterized in that, The negative electrode insulating pad housing mechanism (A4) is a cylindrical structure, including a lifting drive A (A401), a pitch drive (A402), a rotating module A (A403), and at least two suction nozzles (A404). The lifting drive A (A401) is fixed above the rotating module A (A403), and the pitch drive (A402) is fixed to the side. It is used to control the lifting, rotation and pitch movement of at least two suction nozzles (A404) fixed below the pitch drive (A402). After the suction nozzle (A404) picks up the punched negative electrode insulating pad, it moves to the corresponding position in conjunction with the lifting drive A (A401), the rotating module A (A403) and the variable pitch drive (A402). The negative electrode insulating pad is released through the suction nozzle (A404) and falls into the cylindrical battery case, completing the reset of the negative electrode insulating pad after it is placed in the case.

8. The automated production line according to claim 3, characterized in that, The negative electrode insulating pad pressing mechanism (A5) is a flat plate structure, including a pressing cylinder A (A501) and a pressing head A (A502). The lower cylinder A (A501) serves as the top of the flat plate structure and is fixedly connected to the top of the pressure head A (A502); After the cylindrical battery case is transported to the corresponding position, the pressure cylinder A (A501) pushes the pressure head A (A502) to press the negative electrode insulating pad inside the cylindrical battery case to the bottom of the cylindrical battery case, thus completing the pressing of the negative electrode insulating pad.

9. The automated production line according to claim 3, characterized in that, The loading and transfer mechanism (A6) is a cantilever structure, including a transfer drive AII (A601), a gripper III cylinder A (A602), a gripper AIII (A603), a gripper AIV cylinder (A604), and a gripper AIV (A605). The transfer drive AII (A601) is the end of the cantilever structure, fixed above the gripper III cylinder A (A602) and the gripper AIV cylinder (A604), and moves between the annular conveyor line A (4) and the flat belt conveyor line (2). The gripper AIII (A603) is fixed below the gripper III cylinder A (A602). The gripper AIII (A603) is controlled by the gripper III cylinder A (A602) to pick up the battery cell to be put into the shell from the cup-shaped carrier on the flat belt conveyor (2), put it into the cylindrical battery shell in the gripper carrier (3) on the annular conveyor A (4), and then reset. The gripper AIV (A605) is fixed below the gripper AIV cylinder (A604). The gripper AIV (A605) is controlled by the gripper AIV cylinder (A604) to grip the cylindrical battery case with the battery cell inserted from the gripper carrier (3) on the annular conveyor line A (4) when the casing transfer mechanism (A6) is reset, and put it into the cup-shaped carrier on the flat belt conveyor line (2).

10. The automated production line according to claim 3, characterized in that, The splitting mechanism (A7) further includes a motor AII (A701) and a screw (A702). The motor AII (A701) is arranged along the direction of the flat belt conveyor line (2); The screw (A702) is fixed to the shaft of motor AII (A701); The motor AII (A701) rotates the screw (A702) to equidistantly separate the cup-shaped carriers on the flat belt conveyor line (2).

11. The automated production line according to claim 1, characterized in that, The grooving device (B) further includes a circular conveyor line B (5), a handling device B (B1), a grooving mechanism (B2), a dispensing mechanism (B3), a height detection mechanism (B4), and a vision inspection device (B5). At least one set of gripper carriers (3) are installed on the circular conveyor line B (5) and numbered to distinguish them; The flat belt conveyor (2) is connected to the gripper carrier (3) on the circular conveyor B (5) via the handling device B (B1); The conveying device B (B1), at least one grooving mechanism (B2), at least one dispensing mechanism (B3), height detection mechanism (B4) and vision detection device (B5) are sequentially arranged on the conveying route of the circular conveyor line B (5) along the conveying direction of the gripper carrier (3).

12. The automated production line according to claim 11, characterized in that, The conveying device B (B1) is a cantilever structure with a central support and two arms that extend forward to the left and right. It includes two vertical drive BI (B101), two horizontal drive BI (B102), at least one gripper cylinder B (B103), and at least one gripper BII (B104). The two horizontal drive BI (B102) are respectively the ends of the two arms of the cantilever structure, fixed to the side of the vertical drive BI (B101), and move horizontally and vertically between the flat belt conveyor (2) and the ring conveyor B (5). The gripper cylinder B (B103) is fixed below the vertical drive BI (B101), and the gripper BII (B104) is located below the gripper cylinder B (B103). The gripper cylinder B (B103) controls the gripper BII (B104) to pick up the cylindrical battery case to be grooved from the cup-shaped carrier on the flat belt conveyor (2) and put it into the annular conveyor B (5). After the gripper carrier (3) on the annular conveyor B (5) clamps the cylindrical battery case, the gripper BII (B104) is released and, upon resetting, picks up the cylindrical battery case that has passed the test from the gripper carrier (3) on the annular conveyor B (5) and places it into the cup-shaped carrier on the flat belt conveyor (2).

13. The automated production line according to claim 11, characterized in that, The grooving mechanism (B2) is a hollow square column structure, comprising a rotary drive B (B201), a vertical drive B1 (B202), a descending drive B (B203), a horizontal drive B1 (B204), a support head B (B205), a roller (B206), a rotating shaft B1 (B207), a support rod B1 (B208), and a lifting drive B1 (B209). The descent drive B (B203) is fixed to the top side of the hollow square column structure above the support head B (B205); The lifting drive BI (B209) serves as the bottom of the hollow square column structure and is fixed below the support rod BI (B208), on the same side as the lowering drive B (B203). The descent drive B (B203) works in conjunction with the lifting drive BI (B209) to push the support head B (B205) and the support rod BI (B208) to move downward and upward respectively, so as to position the cylindrical battery case from the top and bottom. The vertical drive BII (B202) is fixed to the top side of the square column hollow structure, above the horizontal drive BII (B204), on the different side from the descending drive B (B203). The horizontal drive BII (B204) is fixed to the roller (B206) in the direction of the lifting drive BII (B209), and works with the vertical drive BII (B202) to control the horizontal and vertical movement of the roller (B206) to reach the position where the cylindrical battery case needs to be grooved. The rotary drive B (B201) is located below the horizontal drive BII (B204) and drives the rotating shaft BI (B207) located above the support rod BI (B208) to rotate. The rotary drive B (B201) works in conjunction with the horizontal drive BII (B204) to use rollers (B206) to groove the cylindrical battery casing at the desired location and depth.

14. The automated production line according to claim 11, characterized in that, The dispensing mechanism (B3) is a hollow square column structure, comprising a rotating shaft drive B (B301), a vertical drive BIII (B302), a horizontal drive BIII (B303), a support rod BII (B304), a lifting drive BII (B305), a pressure head drive B (B306), a pressure head B (B307), a dispensing module (B308), and a rotating shaft BII (B309). The pressure head drive B (B306) is fixed to the top side of the square column hollow structure above the pressure head B (B307); The lifting drive BII (B305) serves as the bottom of the hollow square column structure and is fixed below the support rod BII (B304), on the same side as the pressure head drive B (B306). The pressure head drive B (B306) works in conjunction with the lifting drive BII (B305) to push the pressure head B (B307) and the support rod BII (B304) to descend and lift, respectively, so as to position the cylindrical battery case from the top and bottom. The vertical drive BIII (B302) is fixed to the top side of the square column hollow structure, above the horizontal drive BIII (B303), on the different side from the pressure head drive B (B306). The horizontal drive BIII (B303) is fixed to the dispensing module (B308) in the direction of the pressure head drive B (B306), and works with the vertical drive BIII (B302) to control the horizontal and vertical movement of the dispensing module (B308) to reach the position where the cylindrical battery case needs to be dispensed. The rotating shaft drive B (B301) is located below the horizontal drive BIII (B303) and drives the rotating shaft BII (B309) located above the support rod BII (B304) to rotate. The rotating shaft drive B (B301) works in conjunction with the horizontal drive BIII (B303) to apply adhesive at the location where the cylindrical battery case needs to be adhesived using the dispensing module (B308).

15. The automated production line according to claim 11, characterized in that, The height detection mechanism (B4) is a square column structure, comprising at least one detection drive B (B401), at least one position sensor B (B402), at least one slider B (B403), at least one pressure block B (B404), an overall vertical drive B (B405), and a horizontal drive BIV (B406). The horizontal drive BIV (B406) serves as the bottom of the square column structure and is located below the overall vertical drive B (B405), driving the height detection mechanism (B4) to move horizontally as a whole. The overall vertical drive B (B405) is positioned above the horizontal drive BIV (B406) and drives the entire height detection mechanism (B4) except for the horizontal drive BIV (B406) to move vertically. The detection drive B (B401) serves as the top of the square column structure, pushing the slider B (B403) fixed below it to slide, so that the pressure block B (B404) fixed on the slider B (B403) stops after hitting the top of the cylindrical battery case. At the same time, the position sensor B (B402) located above the slider B (B403) detects whether the height of the cylindrical battery case is qualified. Empty shells that fail the inspection will be discarded and released from the gripper carrier (3).

16. The automated production line according to claim 11, characterized in that, The visual inspection device (B5) further includes a horizontal drive BV (B501), a CCD image sensor B (B502), and a light source B (B503). The horizontal drive BV (B501) is fixed to the light source B (B503) and the CCD image sensor B (B502), and drives the light source B (B503) and the CCD image sensor B (B502) to move horizontally together; The CCD image sensor B (B502) performs visual inspection on the cylindrical battery case in the gripper carrier (3) to check the grooving results; Cylindrical battery casings that fail inspection will be discarded and released from the gripper carrier (3).

17. The automated production line according to claim 1, characterized in that, The negative electrode welding device further includes a conveying device and a spot welding mechanism; The flat belt conveyor (2) is connected to the spot welding mechanism via a handling device; The transport device transports the cylindrical battery case from the flat belt conveyor (2) to the spot welding mechanism, and after the negative electrode welding is completed, it transports the cylindrical battery case back to the flat belt conveyor (2) from the spot welding mechanism. The spot welding mechanism is a hollow cylindrical structure, including battery fixing, welding needle driving, lower electrode and welding needle; The battery is fixed as the side of the columnar structure, which is used to position the cylindrical battery casing at the lower electrode position from both sides. The welding needle drive is the top of a columnar structure, fixed above the welding needle, and is used to push the welding needle, which serves as the upper electrode, through the small hole in the center of the cell to the bottom of the cylindrical battery case to weld the negative electrode tab to the bottom of the cylindrical battery case.

18. The automated production line according to claim 1, characterized in that, The positive electrode cap welding device (C) includes a ring conveyor line C (6), a handling device C (C1), an electrode ear induction mechanism (C2), a positive electrode cap vibrating plate (C3), and a positive electrode cap welding mechanism (C4). At least one set of gripper carriers (3) are installed on the circular conveyor line C (6) and numbered to distinguish them; The flat belt conveyor (2) is connected to the gripper carrier (3) on the circular conveyor C (6) via the handling device C (C1); The conveying device C (C1), the electrode induction mechanism (C2), and the positive electrode cap welding mechanism (C4) are sequentially arranged on the conveying route of the circular conveyor line C (6) along the conveying direction of the gripper carrier (3); The positive electrode cap vibratory plate (C3) is connected to the gripper carrier (3) set on the annular conveyor line C (6) through the positive electrode cap welding mechanism (C4) to provide the positive electrode cap in the positive electrode cap vibratory plate (C3) to the positive electrode cap welding mechanism (C4) to complete the positive electrode cap welding.

19. The automated production line according to claim 18, characterized in that, The conveying device C (C1) is a cantilever structure with a central support and two arms that extend forward to the left and right. It includes two vertical drive CI (C101), two horizontal drive CI (C102), at least one gripper cylinder C (C103), and at least one gripper CII (C104). The two horizontal drive CIs (C102) are respectively the ends of the two arms of the cantilever structure, fixed to the side of the vertical drive CI (C101), and move horizontally and vertically between the flat belt conveyor (2) and the ring conveyor C (6). The gripper cylinder C (C103) is fixed below the vertical drive CI (C101), and the gripper CII (C104) is located below the gripper cylinder C (C103). The gripper cylinder C (C103) controls the gripper CII (C104) to pick up the cylindrical battery case to be welded with the positive electrode cap from the cup-shaped carrier on the flat belt conveyor (2) and put it into the annular conveyor C (6). After the gripper carrier (3) on the annular conveyor C (6) clamps the cylindrical battery case, the gripper CII (C104) is released and, upon resetting, picks up the cylindrical battery case with the completed positive electrode cap welding from the gripper carrier (3) on the annular conveyor C (6) and places it into the cup-shaped carrier on the flat belt conveyor (2).

20. The automated production line according to claim 18, characterized in that, The electrode sensing mechanism (C2) is divided into upper and lower parts. The lower part is a hollow columnar structure, which includes a rotation drive C (C201), a square shaft C (C202), an unlocking drive C (C203), a slider C (C204), a fork (C205), a push rod C (C206), a swing rod C (C207), and a gripper CIII (C208). The upper part includes an interruption sensor (C209). The rotary drive C (C201) serves as the bottom of the lower hollow column and is fixed to the bottom of the square shaft C (C202); The slider C (C204) has a hollow structure. The lower part of the slider C (C204) has a square hole for the square shaft C (C202) to be inserted from the top. When the unlocking drive C (C203) is unlocked, the upper part of the slider C (C204) can be synchronized with the lower part of the slider C (C204) through the fork (C205) to cooperate with the rotation drive C (C201) to rotate. The unlocking drive C (C203) serves as the side of the lower hollow column, with the fork (C205) fixed above it. When unlocked, the fork (C205) is located in the hollow area of ​​the slider, causing the lower part of the slider C (C204) to rotate freely without synchronizing with the upper part of the slider C (C204). When unlocked, the fork (C205) is pushed to move along the direction of the square axis C (C202) to synchronize with the upper part of the slider C (C204), thereby driving the push rod C (C206) fixed above the slider C (C204) to move and rotate synchronously. The swing arm C (C207) is positioned above the top rod C (C206), controlling the gripper CIII (C208) positioned above the swing arm C (C207) to clamp the cylindrical battery case and cooperate with the rotation drive C (C201) to rotate; The blocking part of the blocking sensor (C209) is located at the position of the cylindrical battery tab. When the cylindrical battery case is rotated, the tab will first block the blocking sensor (C209). Once the sensor is turned on, the tab has been rotated to the required position.

21. The automated production line according to claim 18, characterized in that, The positive electrode cap vibrating plate (C3) uses the principle of electromagnet energization and de-energization to control the positive electrode caps inside the positive electrode cap vibrating plate (C3) to jump up and down, so as to adjust the front and back of the positive electrode caps and make them evenly arranged. It can continuously supply the positive electrode battery caps required by the positive electrode cap welding mechanism (C4).

22. The automated production line according to claim 18, characterized in that, The positive electrode cap welding mechanism (C4) is a hollow columnar structure, comprising a positive electrode cap contact block (C401), a positive electrode cap material channel (C402), an electromagnet (C403), a sensor C (C404), a support block C (C405), a slide bar C (C406), a motor C (C407), an eccentric wheel C (C408), an eccentric rocker C (C409), a cylinder C (C410), a guide rod C (C411), a battery pressing block C (C412), an electrode tab pressing block C (C413), a laser channel (C414), and a laser welding machine; The positive electrode cap feed channel (C402) is located on one side of a columnar structure above the positive electrode cap receiving block (C401), providing the positive electrode cap from the positive electrode cap vibrating plate (C3); The sensor C (C404) is fixed to the side of the positive electrode cap block (C401) to sense whether there is an obstacle in front of the positive electrode cap block (C401). When the positive electrode cap reaches the front of the positive electrode cap block (C401), the sensor C (C404) will be triggered to control the electromagnet (C403) embedded in the positive electrode cap block (C401) to be magnetized so as to attract the positive electrode cap. The motor C (C407) serves as the bottom of the columnar structure, driving the eccentric wheel C (C408) located above it to rotate, thereby causing the eccentric rocker C (C409) fixed inside the eccentric wheel C (C408) to rotate, so that the slide bar C (C406) hinged on the eccentric rocker C (C409) moves horizontally, causing the positive electrode cap block (C401) fixed on the slide bar C (C406) to magnetically attract the positive electrode cap close to the positive electrode tab; The support block C (C405) is located at the bottom of the positive electrode cap block (C401), corresponding to the battery clamping block C (C412) under the tab clamping block C (C413). The support block C (C405) and the battery clamping block C (C412) cooperate to fix the cylindrical battery. The cylinder C (C410) is located on both sides of the battery pressing block C (C412). It pushes the fixed guide rod C (C411) to drive the tab pressing block C (C413) fixed to the other end of the guide rod C (C411). Together with the support block C (C405) and the battery pressing block C (C412), the cylinder presses the cylindrical battery shell, while the tab pressing block C (C413) presses the tab onto the positive electrode cap. The laser channel (C414) is located behind and below the tab pressing block C (C413), corresponding to the area to be welded. It is equipped with a laser welding machine. After the cylindrical battery case is pressed together with the tab and the positive electrode cap, the positive electrode cap is welded in conjunction with the laser welding machine.

23. The automated production line according to claim 1, characterized in that, The liquid injection device (D) further includes a ring conveyor line D (7), a weighing mechanism I (D1), a liquid injection tray transfer mechanism (D2), a liquid injection mechanism (D3), and a weighing mechanism II (D4). At least one injection tray transfer mechanism (D2) is installed on the circular conveyor line D (7) and numbered to distinguish it; The flat belt conveyor (2) is connected to the liquid injection tray transfer mechanism (D2) on the ring conveyor line D (7) through weighing mechanism I (D1) and weighing mechanism II (D4); The weighing mechanism I (D1), the liquid injection mechanism (D3) and the weighing mechanism II (D4) are sequentially arranged on the conveying route of the circular conveyor line D (7) along the conveying direction of the liquid injection tray transfer mechanism (D2).

24. The automated production line according to claim 23, characterized in that, The weighing mechanism I (D1) further includes a robotic arm I (D101) and at least one electronic scale I (D102). The robotic arm I (D101) is positioned between the flat belt conveyor (2), the weighing mechanism I (D1), and the circular conveyor D (7). It transfers the cylindrical battery cases to be injected from the flat belt conveyor (2) to the weighing mechanism I (D1) one by one, records the initial weight through the electronic scale I (D102), and then transfers the cylindrical battery cases from the weighing mechanism I (D1) to the injection tray transfer mechanism (D2).

25. The automated production line according to claim 23, characterized in that, The liquid injection tray transfer mechanism (D2) is a platform structure, including a liquid injection tray (D201), a motor D (D202), a servo motor D (D203), a speed-multiplying chain (D204), a lifting and positioning D (D205), a blocking cylinder D (D206), a slider D (D207), and a guide rail D (D208). The injection tray (D201) is provided with at least one slot and is numbered to distinguish them; The motor D (D202) is connected to a speed-multiplying chain (D204) to move the liquid injection tray (D201) horizontally. The servo motor D (D203) is fixed to the slider D (D207), and the slider D (D207) is set and slides on the guide rail D (D208) to vertically move the liquid injection tray (D201). The lifting positioning D (D205) and the blocking cylinder D (D206) are respectively located at the bottom and side of the platform structure to limit the movement boundary of the liquid injection tray (D201).

26. The automated production line according to claim 23, characterized in that, The injection mechanism (D3) is a platform structure, including at least one injection nozzle (D301), at least one injection controller (D302), a horizontal drive D (D303), a vertical drive D (D304), and at least one proximity drive D (D305). The injection controller (D302) serves as the top of the platform structure and is connected to the injection nozzle (D301) via a conduit. Together with the horizontal drive D (D303) and vertical drive D (D304), which also serve as the top of the platform structure, it drives the platform structure to move horizontally and vertically. The near drive D (D305) serves as the bottom of the platform structure, with the injection nozzle (D301) fixed below it. After the injection tray (D201) is delivered to the designated injection position, it moves close to the drive D (D305) to move the injection nozzle (D301) closer to the cylindrical battery case, and then the battery fluid is injected.

27. The automated production line according to claim 23, characterized in that, The weighing mechanism II (D4) further includes a robotic arm II (D401) and at least one electronic scale II (D402). The robotic arm II (D401) is positioned between the flat belt conveyor (2), the weighing mechanism II (D4), and the circular conveyor D (7). It transfers the cylindrical battery cases that have been filled with liquid from the liquid filling tray transfer mechanism (D2) on the circular conveyor D (7) to the weighing mechanism II (D4). The final weight is recorded by the electronic scale II (D402). The cylindrical battery cases that meet the weight requirements are transferred by the robotic arm II (D401) from the weighing mechanism II (D4) to the cup-shaped carrier on the flat belt conveyor (2). Cylindrical battery cases that fail inspection will be removed when the robotic arm II (D401) transfers the cylindrical battery cases to the electronic scale II (D402) next time.

28. The automated production line according to claim 1, characterized in that, The sealing device (E) further includes a ring conveyor line E (8), a handling device E (E1), a positive electrode pre-compression mechanism (E2), a positive electrode pressing mechanism (E3), a positive electrode first sealing mechanism (E4), a positive electrode second sealing mechanism (E5), an electrical testing module (E6), and a finished product unloading mechanism (E7). At least one set of gripper carriers (3) are installed on the circular conveyor line E (8) and numbered to distinguish them; The flat belt conveyor (2) is connected to the gripper carrier (3) on the circular conveyor line E (8) via the handling device E (E1); The conveying device E (E1), the positive electrode pre-pressing mechanism (E2), the positive electrode pressing mechanism (E3), at least one positive electrode sealing mechanism (E4), at least one positive electrode double sealing mechanism (E5), the electrical testing module (E6), and the finished product unloading mechanism (E7) are sequentially arranged on the conveying route of the circular conveyor line E (8) along the conveying direction of the gripper carrier (3).

29. The automated production line according to claim 28, characterized in that, The conveying device E (E1) is a cantilever structure with a central support and two arms that extend forward to the left and right. It includes two vertical drive EI (E101), two horizontal drive EI (E102), at least one gripper cylinder E (E103), and at least one gripper EII (E104). The two horizontal drive EI (E102) are respectively the ends of the two arms of the cantilever structure, fixed to the side of the vertical drive EI (E101), and move horizontally and vertically between the flat belt conveyor (2), the flat belt conveyor (2) and the ring conveyor E (8). The gripper cylinder E (E103) is fixed below the vertical drive EI (E101), and the gripper EII (E104) is located below the gripper cylinder E (E103). The gripper cylinder E (E103) controls the gripper EII (E104) to pick up the cylindrical battery case to be sealed from the cup-shaped carrier on the flat belt conveyor (2) and transfer it to the annular conveyor E (8). After the gripper carrier (3) on the annular conveyor E (8) clamps the cylindrical battery case, the gripper EII (E104) is released.

30. The automated production line according to claim 28, characterized in that: The positive electrode pre-compression mechanism (E2) is a platform structure with two sides for positive electrode pre-compression of the central cylindrical battery casing. The side closer to the positive electrode cap includes a rotating cylinder E (E201), a rotating shaft E (E202), a spring E (E203), and a pressure roller E (E204), while the side closer to the electrode tab includes a support block cylinder E (E205) and a support block E (E206). The positive electrode pressing mechanism (E3) is a platform structure with three sides for pressing the positive electrode into the central cylindrical battery casing. The side near the positive electrode cap includes a stop cylinder E (E301) and a stop block E (E302). The side above the cylindrical battery casing includes a pressing head cylinder E (E303) and a pressing head E (E304). The side near the tab includes a cap pusher cylinder (E305), a cap pusher E (E306), a tab pusher cylinder E (E307), and a tab pusher E (E308). The support block cylinder E (E205) is fixed to the support block E (E206), and the support point of the support block E (E206) corresponds to the lower part of the pole tab; The rotating cylinder E (E201) is fixed to the rotating shaft E (E202), the pressure roller E (E204) is fixed to the rotating shaft E (E202) at one end near the cylindrical battery shell, and the two ends of the spring E (E203) are fixed to the rotating cylinder E (E201) and the rotating shaft E (E202). After the support block cylinder E (E205) pushes the support block E (E206) against one side of the positive electrode tab, the rotating shaft cylinder E (E201) pushes the rotating shaft E (E202), and the pressure roller E (E204) fixed to one end of the rotating shaft E (E202) in conjunction with the spring E (E203) rotates to press the positive electrode cap down from the other side of the positive electrode tab, thus completing the positive electrode pre-compression; The electrode pusher cylinder E (E307) is fixed to the electrode pusher block E (E308) at one end near the electrode, and the push point of the electrode pusher block E (E308) corresponds to the lower part of the electrode. The cap pusher cylinder (E305) is fixed to the cap pusher E (E306) at one end near the electrode tab, and is fixed above the electrode pusher E (E308); The stop cylinder E (E301) is fixed to one end of the positive electrode cap with stop block E (E302), and the stop point of stop block E (E302) corresponds to the upper part of the positive electrode cap; The pressure head cylinder E (E303) is fixed to one end of the cylinder near the top of the cylindrical battery case, and the pressure point of the pressure head E (E304) corresponds to the top of the cylindrical battery case. The stop cylinder E (E301) pushes the stop block E (E302) to restrict the movement boundary on one side of the positive electrode cap. The tab push block cylinder E (E307) pushes the tab push block E (E308) to fold the tab. Then, the cap push block cylinder (E305) pushes the cap push block E (E306) to push the positive electrode cap above the cylindrical battery casing. Finally, the pressure head cylinder E (E303) pushes the pressure head E (E304) to press the cap into the cylindrical battery casing, completing the positive electrode pressing.

31. The automated production line according to claim 28, characterized in that: The positive electrode sealing mechanism (E4) is a columnar structure, comprising a servo press EI (E401), a cap press head EI (E402), a sealing mold (E403), and a battery fixing EI (E404). The positive electrode double sealing mechanism (E5) is a columnar structure, including a servo press EII (E501), a cap press head EII (E502), a double sealing mold (E503), and a battery fixing EII (E504). The first sealing mold (E403) and the second sealing mold (E503) are different models, and are used to initially flatten the top of the cylindrical battery case and to press the inner circumference of the flattened cylindrical battery case to a deeper depth, respectively. The servo press EI (E401) serves as the top of a columnar structure and is fixed above the cap press head EI (E402); The compression mold (E403) covers the cap head EI (E402); The battery fixing EI (E404) serves as the bottom of the columnar structure, fixing the cylindrical battery casing from both sides of the cylindrical battery casing. The servo press EI (E401) pushes the cap press head EI (E402) to drive the sealing die (E403) downward, and works with the battery fixing EI (E404) to fix the cylindrical battery case to complete the sealing of the battery positive terminal; The servo press EII (E501) serves as the top of a columnar structure and is fixed above the cap press head EII (E502); The second sealing mold (E503) covers the cap head EII (E502); The battery fixing EII (E504) serves as the bottom of the columnar structure, fixing the cylindrical battery casing from both sides of the cylindrical battery casing. The servo press EII (E501) pushes the cap press head EII (E502) to drive the second sealing mold (E503) downward, and works with the battery fixing EII (E504) to fix the cylindrical battery case to complete the second sealing of the battery positive electrode.

32. The automated production line according to claim 28, characterized in that, The electrical measurement module (E6) further includes probe driver I (E601), probe I (E602), probe driver II (E603) and probe II (E604). The probe driver I (E601) serves as the top of the electrical testing module (E6) to fix probe I (E602) towards the positive electrode of the cylindrical battery case, while the probe driver II (E603) serves as the bottom of the electrical testing module (E6) to fix probe II (E604) towards the negative electrode of the cylindrical battery case. After the cylindrical battery reaches the designated position, the probe drive I (E601) and probe drive II (E603) push probe I (E602) and probe II (E604) to contact the top and bottom of the battery respectively to detect whether the battery has voltage and internal charge. Cylindrical batteries that fail the test will be discarded and released from the gripper carrier (3).

33. The automated production line according to claim 28, characterized in that, The finished product unloading mechanism (E7) is a cantilever structure, including a gripper cylinder EII (E701), at least one gripper EIII (E702), a rotary drive E (E703), a rotating shaft E (E704), a belt E (E705), and a lifting drive E (E706). The lifting drive E (E706) serves as the bottom of the cantilever structure, driving the entire cantilever to move up and down. The rotating shaft E (E704) serves as the top of the cantilever structure, with a gripper cylinder EII (E701) fixed to one side and a belt E (E705) fitted on the other side to rotate synchronously with the rotary drive E (E703) located below. At least one gripper EIII (E702) is fixed to the underside of gripper cylinder EII (E701); The gripper cylinder EII (E701) controls the gripper EIII (E702) to grip the cylindrical battery. After the cylindrical battery is rotated 90 degrees by the rotary drive E (E703) and the belt E (E705), the gripper EIII (E702) is released to place the cylindrical battery on the flat belt conveyor line (2).

34. The automated production line according to claim 1, characterized in that, The squatting sealing device (F) further includes a ring conveyor line F (9), a transfer mechanism F (F1), an oiling mechanism (F2), a squatting sealing mechanism (F3), and a height detection mechanism (F4). At least one set of gripper carriers (3) are installed on the circular conveyor line F (9) and numbered to distinguish them; The flat belt conveyor (2) is connected to the gripper carrier (3) on the ring conveyor F (9) via the transfer mechanism F (F1); The transfer mechanism F (F1), at least one oiling mechanism (F2), at least one squatting sealing mechanism (F3), and height detection mechanism (F4) are sequentially arranged on the conveying route of the circular conveyor line F (9) along the conveying direction of the gripper carrier (3).

35. The automated production line according to claim 34, characterized in that, The transfer mechanism F (F1) is a cantilever structure, comprising a gripper cylinder FII (F101), at least one gripper FIII (F102), a rotary drive F (F103), a rotating shaft F (F104), a belt F (F105), and a lifting drive FI (F106). The lifting drive FI (F106) serves as the bottom of the cantilever structure, driving the entire cantilever to move up and down. The rotating shaft F (F104) serves as the top of the cantilever structure, with a gripper cylinder FII (F101) fixed to one side and a belt F (F105) fitted on the other side to rotate synchronously with the rotation drive F (F103) located below. The at least one gripper FIII (F102) is fixedly attached to the lower part of the gripper cylinder FII (F101); The gripper cylinder FII (F101) controls the gripper FIII (F102) to grip the cylindrical battery from the flat belt conveyor (2) during loading. Then, in conjunction with the rotation drive F (F103) and belt F (F105), the cylindrical battery is rotated 90 degrees. Finally, the cylindrical battery is clamped by the gripper carrier (3) on the annular conveyor F (9), and the gripper FIII (F102) is released at the same time to complete the loading. The gripper cylinder FII (F101) controls the gripper FIII (F102) to pick up the cylindrical battery from the gripper carrier (3) on the circular conveyor line F (9) during unloading. Then, in conjunction with the rotation drive F (F103) and the belt F (F105), the cylindrical battery is rotated 90 degrees. Finally, the gripper FIII (F102) is released to place the cylindrical battery on the flat belt conveyor line (2) to complete the unloading.

36. The automated production line according to claim 34, characterized in that, The oiling mechanism (F2) is a cantilever structure, including a lifting drive FII (F201), an oiling fixture cylinder (F202), an oil inlet connector (F203), and an oiling fixture (F204). The oiling fixture cylinder (F202) serves as the top of the cantilever structure, pushing the oiling fixture (F204) fixed below to perform oiling. The oiling fixture (F204) is fixed below the oiling fixture cylinder (F202), and the side is fixed with an oil inlet connector (F203) to supply rust-preventive oil to remove the highly corrosive electrolyte at the positive terminal of the battery and perform battery maintenance. The lifting drive FII (F201) serves as the bottom of the cantilever structure and controls the lifting and moving of the entire cantilever.

37. The automated production line according to claim 34, characterized in that, The squatting sealing mechanism (F3) is a columnar structure, comprising a servo press F (F301), a cap press head F (F302), a squatting sealing mold (F303), and a battery fixing F (F304). The servo press F (F301) serves as the top of a columnar structure and is fixed above the cap press head F (F302); The squatting sealing mold (F303) covers the cap pressing head F (F302); The battery fixing F (F304) serves as the bottom of the columnar structure, fixing the cylindrical battery from both sides of the cylindrical battery. The servo press F (F301) pushes the cap press head F (F302) to drive the squat sealing mold (F303) downward, and works with the battery fixing F (F304) to fix the cylindrical battery case to complete the battery squat sealing.

38. The automated production line according to claim 34, characterized in that, The height detection mechanism (F4) is a plate-shaped structure, comprising a pressure head cylinder F (F401), a pressure head F (F402), a sliding plate cylinder F (F403), a sliding plate F (F404), and a position sensor F (F405). The pressure head cylinder F (F401) serves as the top of a plate-like structure, controlling the pressure head F (F402) located below to fix the cylindrical battery. The pressure head F (F402) is a clamping structure used to support and fix the cylindrical battery from the top and bottom. The position sensor F (F405) is installed below the sliding plate cylinder F (F403). The sliding plate cylinder F (F403) moves the sliding plate F (F404) to detect the height of the cylindrical battery.

39. The automated production line according to claim 1, characterized in that, The tray loading device (G) further includes an empty box lifting mechanism (G1) and a battery loading mechanism (G2). The empty box lifting mechanism (G1) is a columnar structure, including an L-shaped carrier (G101), a carrier cylinder (G102), a lifting drive G (G103), and a pin G (G104). The battery loading mechanism (G2) further includes a battery pusher cylinder (G201) and a battery pusher module (G202). Above the empty box lifting mechanism (G1) is a flat belt conveyor line (2), which works in conjunction with the battery box loading mechanism (G2) located next to the flat belt conveyor line (2) to load the battery into the box. The battery pusher cylinder (G201) is fixedly connected to the battery pusher module (G202). The lifting drive G (G103) serves as the bottom of the columnar structure, and is hinged to the pin G (G104) to control the lifting and moving of the L-shaped carrier (G101) located above. The carrier cylinder (G102) is fixed to the L-shaped carrier (G101) and controls the L-shaped carrier (G101) to tilt appropriately to ensure that the battery box does not tip over.

40. The automated production line according to claim 39, characterized in that: The battery push plate module (G202) further includes an L-shaped top plate (G20201), an extension plate (G20202), a slider G (G20203), and a connecting rod (G20204). The extension plate (G20202) is located on the top of the L-shaped top plate (G20201). The bottom sides of the L-shaped top plate (G20201) are respectively hinged to one end of the connecting rod (G20204), and the other end of the connecting rod (G20204) is fixedly connected to the slider G (G20203). When the battery pusher cylinder (G201) drives the L-shaped top plate (G20201) to descend, one end of the connecting rod (G20204) descends at the same time, and the other end of the connecting rod (G20204) drives the slider G (G20203) to move horizontally, thereby driving the extension plate (G20202) to push the cylindrical battery on the flat belt conveyor line (2) into the box.

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