Full-automatic formation testing machine for capacitive lithium battery

Abstract

The invention relates to a full-automatic formation testing machine for capacitive lithium batteries in the field of capacitive lithium batteries, which comprises a cabinet and a workbench arranged at the top of the cabinet, and an annular conveying line surrounding to form a closed loop is arranged at the top of the workbench. A feeding device, a first righting testing mechanism, a first defect eliminating mechanism, a formation cabinet, a second righting testing mechanism, a second defect eliminating mechanism, a capacity testing mechanism, a third righting testing mechanism, a good product pin shearing discharging device, a third defect eliminating mechanism and a fourth defect eliminating mechanism are sequentially arranged on the workbench along the conveying path of the annular conveying line. According to the full-automatic production test line, the processes of feeding, formation, multi-channel righting and testing, defective product elimination, capacity testing, pin cutting and discharging and the like are highly integrated and mechanically and synchronously linked by taking an annular conveying line as a core, the full-automatic production test line for the capacitive lithium battery, which is full-automatic, continuous and compact in beat, is constructed, full-process automatic production is realized, and the production efficiency is improved. And the production efficiency of formation and testing is improved.

Description

Technical Field

[0001] This invention relates to the field of capacitive lithium batteries, and more specifically to a fully automated testing machine for capacitive lithium batteries. Background Technology

[0002] Lithium-ion capacitors (also known as supercapacitors or lithium-ion capacitors) are a new type of battery technology with wide applications in consumer electronics, transportation, energy storage, and other technological fields. However, with the increasingly stringent requirements for energy density and consistency in downstream applications, the manufacturing process of lithium-ion capacitors faces unprecedented challenges, especially in the "activation" and "testing" stages before batteries leave the factory. Traditional technologies are showing signs of fatigue and are struggling to keep pace with the rapid development of this high-tech industry.

[0003] Existing capacitive lithium battery formation testing machines essentially still use the traditional binary separation architecture of "formation" and "capacity testing". In actual operation, after the battery is assembled, it must first be sent to a high-temperature negative pressure environment formation cabinet for initial charging activation, where a solid electrolyte interphase (SEI) film is built on the surface of the negative electrode using a small current. Subsequently, these batteries often need to be manually or semi-automatically transferred to a capacity testing cabinet for multiple rounds of charge-discharge cycles to determine their actual capacity, thus completing the formation test of the capacitive battery.

[0004] However, existing technologies for the formation and testing of capacitive batteries still have certain shortcomings. Specifically, due to the physical separation between formation and testing, it is difficult to achieve fully automated integration of the entire process. The handling and clamping of batteries between different workstations heavily relies on manual labor or simple robotic arms, but there are significant physical isolations and time breaks between each process. The current operating model not only occupies a huge amount of factory space but also lengthens the entire production cycle. Furthermore, during battery transfer, uncontrollable interference factors can easily be introduced due to changes in contact impedance or human error, making it difficult to meet the cycle time requirements of large-scale mass production. Therefore, there is an urgent need to develop a fully automated testing equipment for capacitive lithium battery formation and testing to improve the level of automation and testing efficiency. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned defects and provide a fully automated formation and testing machine for capacitive lithium batteries. This invention aims to solve the technical problems of low automation and low testing efficiency in the formation and testing of existing capacitive batteries as described in the background.

[0006] The objective of this invention is achieved through the following means:

[0007] A fully automated forming and testing machine for capacitive lithium batteries includes a cabinet and a workbench mounted on the cabinet. The workbench is equipped with a closed-loop conveyor line. Along the conveying path of the closed-loop conveyor line, the workbench is arranged with the following stations in sequence: a feeding station, a first straightening test station, a first defect removal station, a formation station, a second straightening test station, a second defect removal station, a capacity test station, a third straightening test station, a good product shearing and feeding station, a third defect removal station, and a fourth defect removal station.

[0008] The loading station is equipped with a loading device for loading materials onto the circular conveyor line;

[0009] The formation station is equipped with a formation cabinet, the opening of which extends toward the circular conveyor line, so that the formation cabinet can clamp the battery into the cabinet for formation and then place it back onto the circular conveyor line.

[0010] The first, second, and third straightening test stations are respectively equipped with a first straightening test mechanism, a second straightening test mechanism, and a third straightening test mechanism. The first, second, and third straightening test mechanisms are used to straighten the batteries on the circular conveyor line and perform tests.

[0011] The first defect removal station, the second defect removal station, the third defect removal station, and the fourth defect removal station are respectively equipped with a first defect removal mechanism, a second defect removal mechanism, a third defect removal mechanism, and a fourth defect removal mechanism. The first defect removal mechanism is used to remove defective batteries tested by the first straightening test mechanism, the second defect removal mechanism is used to remove defective batteries tested by the second straightening test mechanism, and the third and fourth defect removal mechanisms are used to classify and remove defective batteries tested by the third straightening test mechanism.

[0012] The capacity testing station is equipped with a capacity testing mechanism, which includes three or more sets of clamping components arranged alternately along the circumference and test components that match the number of clamping components. This allows the three or more sets of clamping components to alternately clamp and remove the battery from the circular conveyor line, test it through the test components, and then place it back on the circular conveyor line.

[0013] The good-quality shearing foot feeding station is equipped with a good-quality shearing foot feeding device, which is used to clamp the batteries on the circular conveyor line and cut the positive and negative leads of the batteries and unload the finished products.

[0014] The circular conveyor line is connected to a main drive mechanism for driving its rotation. The feeding device is connected to the main drive mechanism through a first transmission mechanism, and the good product shearing device is connected to the main drive mechanism through a second transmission mechanism. The main drive mechanism can drive the circular conveyor line, the feeding device, and the good product shearing device to work synchronously.

[0015] The beneficial effects of this invention are:

[0016] By setting up a main drive mechanism connected to the circular conveyor line, and connecting the feeding device via the first transmission mechanism and the good product shearing device via the second transmission mechanism to the main drive mechanism, the circular conveyor line, the feeding action, and the unloading action are synchronized and linked. By highly integrating and mechanically synchronizing the processes of feeding, formation, multi-stage straightening and testing, defective product rejection, capacity testing, and shearing unloading with the circular conveyor line as the core, a fully automated, continuous, and tightly-paced fully automated production and testing line for capacitive lithium batteries is constructed. This allows the entire process of capacitive lithium batteries from start to finish to be completed on a tightly connected path, achieving fully automated production and improving the production efficiency of capacitive lithium battery formation and testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0018] Figure 2 This is a schematic diagram of the formation cabinet in this embodiment;

[0019] Figure 3 This is a schematic diagram of the connection structure between the circulating conveyor line and the clamping bar in this embodiment;

[0020] Figure 4 for Figure 3 A magnified view of part A in the diagram;

[0021] Figure 5 This is a partial structural diagram of this embodiment;

[0022] Figure 6 This is a schematic diagram of the connection of the ring conveyor line in this embodiment;

[0023] Figure 7 This is a schematic diagram showing the connection and drive of the circular conveyor line and the main drive mechanism in this embodiment;

[0024] Figure 8 This is a schematic diagram of the drive mechanism, the feeding device, and the good product shearing foot feeding device in this embodiment;

[0025] Figure 9 This is a schematic diagram of the main drive mechanism and the first and second transmission mechanisms in this embodiment.

[0026] Figure 10 This is a schematic diagram showing the connection between the feeding device and the main drive mechanism in this embodiment;

[0027] Figure 11 This is a schematic diagram of the structure of the first clamping and feeding mechanism in this embodiment;

[0028] Figure 12 This is a schematic diagram showing the connection between the feeding assembly and the first transmission mechanism in this embodiment;

[0029] Figure 13 This is a schematic diagram of the feeding device in this embodiment;

[0030] Figure 14 This is a schematic diagram illustrating the clamping and releasing states of the clamping claw in this embodiment.

[0031] Figure 15 This is a schematic diagram of the foot-feet testing mechanism in this embodiment;

[0032] Figure 16 This is a schematic diagram showing the connection between the foot testing mechanism and the second transmission mechanism in this embodiment;

[0033] Figure 17 This is a schematic diagram of the foot-feet testing mechanism in this embodiment;

[0034] Figure 18 This is a schematic diagram of the entire foot assembly in this embodiment;

[0035] Figure 19 This is a schematic diagram of the capacity testing mechanism in this embodiment;

[0036] Figure 20 This is a schematic diagram showing the connection between the rotating base, the clamping assembly, and the testing assembly in this embodiment;

[0037] Figure 21 This is a schematic diagram showing the connection between the opening / closing driver and the clamping assembly in this embodiment;

[0038] Figure 22 This is a schematic diagram of the clamping component in this embodiment;

[0039] Figure 23 for Figure 22 A magnified view of part B in the diagram;

[0040] Figure 24 This is a schematic diagram showing the connection between the good product shearing foot feeding device and the second transmission mechanism in this embodiment;

[0041] Figure 25 This is a schematic diagram showing the connection between the good product shearing foot feeding device and the second transfer drive in this embodiment;

[0042] Figure 26 This is a schematic diagram of the structure of the second transfer drive in this embodiment;

[0043] Figure 27 This is a schematic diagram of the good product shearing foot feeding device in this embodiment;

[0044] Figure 28 This is a schematic diagram of the structure of the first, second, and third straightening test mechanisms in this embodiment;

[0045] Figure 29 This is a schematic diagram of the second, third, and fourth defect elimination mechanisms in this embodiment;

[0046] The reference numerals in the figure are as follows:

[0047] 100 - Circular conveyor line, 101 - Battery clamp, 102 - Conveyor rotating wheel, 103 - Conveyor shaft, 104 - Conveyor linkage wheel;

[0048] 200 - Feeding device; 201 - Feeding vibratory feeder;

[0049] 202-First clamping and feeding mechanism, 2021-Support base, 2022-Guide component, 2023-Transfer base, 2024-Clamping claw, 20241-First transfer claw, 20242-Second transfer claw, 20243-Opening and closing teeth, 2025-Drive plate, 2026-First opening drive rod;

[0050] 203-Feet alignment test mechanism, 2031-Clamping plate, 2032-Pin assembly, 20321-Pin clamping seat, 20322-Pin block, 2033-Feet assembly, 20331-First foot aligning seat, 20332-Second foot aligning seat, 20333-Feet alignment plate, 20334-Feet aligning clamping block, 20335-Push foot plate, 2034-Detection assembly, 20341-First pin detection seat, 20342-Second pin detection seat, 20343-Pressure foot detection plate, 20344-Detection sensor, 2035-Steering assembly, 20351-Steering motor, 20352-Opening and closing gripper, 2036-Feet alignment drive lever;

[0051] 204-Feeding assembly, 2041-Feeding gripper, 2042-Rotary drive component, 2043-Opening drive rod, 2044-Lifting rod;

[0052] 205 - Clamping drive component; 206 - Transfer rod;

[0053] 300-Main drive mechanism, 301-Drive shaft, 302-Main drive motor, 303-Drive bevel gear, 304-Conveyor drive wheel;

[0054] 400-First transmission mechanism, 401-First transmission shaft, 402-Foot-driving cam, 403-Feeding drive cam, 404-Clamping drive cam, 405-Loading drive cam, 406-First transmission bevel gear, 407-First transfer drive component, 4071-First transfer plate, 4072-First rotary transmission shaft, 4073-First transmission wheel, 4074-Rotary bevel gear;

[0055] 500 - Second transmission mechanism, 501 - Second transmission shaft, 502 - Unloading drive cam, 503 - Second transmission bevel gear, 504 - Second transfer drive component, 5041 - Second transfer plate, 5042 - Second rotary transmission shaft, 5043 - Second transmission wheel, 5044 - Feeding pull rod;

[0056] 600 - Formation cabinet, 601 - Formation machine chassis, 602 - Circulating conveyor line, 603 - Clamping bar, 604 - Clamping drive unit;

[0057] 700 - Capacity testing mechanism; 701 - Clamping assembly; 7011 - Substrate; 7012 - Connecting block; 7013 - Opening shaft; 70131 - Clamping contact part; 70132 - Opening contact part; 7014 - Upper jaw; 7015 - Lower jaw; 7016 - Upper support; 7017 - Lower support; 7018 - Upper connecting frame; 7019 - Lower connecting frame; 702 - Testing assembly; 7021 - Support plate. 7022-Test circuit board, 7023-Cooling fan, 703-Opening and closing driver, 7031-Bearing housing, 7032-Rack, 7033-Drive gear, 7034-Opening and closing rotating block, 7035-Drive cylinder, 7036-Plug-in slot, 704-Rotating shaft, 705-Rotating seat, 706-Rotating control component, 707-Electric slip ring, 708-Roller, 709-Connecting seat, 710-Mounting seat;

[0058] 800-Good product shearing foot feeding device, 801-Feeding component, 8011-Feeding gripper, 8012-Rotating component, 802-Second clamping and feeding mechanism, 803-Shearing mechanism, 8031-Base, 8032-Shearing block, 8033-Cutter, 8034-Shearing drive component, 804-Good product export component, 8041-Good product export gripper, 8042-Steering drive component, 805-Second opening drive rod;

[0059] 900 - First defect elimination mechanism; 901 - Pusher cylinder;

[0060] 10a - Second defect removal mechanism; 11a - Defect clamping cylinder; 12a - Defect conveyor belt; 13a - Lifting drive component; 10b - Third defect removal mechanism; 10c - Fourth defect removal mechanism;

[0061] 20a - First straightening test mechanism; 20b1 - Support block; 20b2 - Upper rotating shaft; 20b3 - Lower rotating shaft; 20b4 - Upper straightening gripper; 20b5 - Lower straightening gripper; 20b6 - Upper test gripper; 20b7 - Lower test gripper; 20b8 - Test block; 20b9 - Upper gear; 20b10 - Lower gear; 20b11 - Straightening test drive component; 20b - Second straightening test mechanism; 20c - Third straightening test mechanism. Detailed Implementation

[0062] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0063] To make the technical problem to be solved, the technical solution and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0064] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0065] In this embodiment, refer to Figures 1-29 The fully automated lithium-ion battery forming and testing machine implemented in this project integrates the processes of feeding, forming, multiple alignment and testing, defective product rejection, capacity testing, and shearing feeding with a circular conveyor line 100 as the core, and links them with mechanical synchronization. This creates a fully automated, continuous, and tightly-paced fully automated production and testing line for lithium-ion batteries. The entire process of lithium-ion batteries from loading to unloading is completed on a closely connected path, achieving fully automated production and improving the production efficiency of lithium-ion battery forming and testing.

[0066] Specifically, refer to Figure 1 , Figure 5 and Figure 6The fully automated forming and testing machine for capacitive lithium batteries of the present invention includes a cabinet and a workbench set on the top of the cabinet. The top of the workbench is provided with a closed-loop annular conveyor line 100. Along the conveying path of the annular conveyor line 100, a feeding device 200, a first straightening test mechanism 20a, a first defect removal mechanism 900, a formation cabinet 600, a second straightening test mechanism 20b, a second defect removal mechanism 10a, a capacity test mechanism 700, a third straightening test mechanism 20c, a good product shearing device 800, a third defect removal mechanism 10b, and a fourth defect removal mechanism 10c are arranged sequentially on the workbench.

[0067] The circular conveyor 100 is connected to a main drive mechanism 300 for driving the circular conveyor 100 to rotate. The feeding device 200 is connected to the main drive mechanism 300 through a first transmission mechanism 400. The good product shearing foot feeding device 800 is connected to the main drive mechanism 300 through a second transmission mechanism 500. The main drive mechanism 300 drives the circular conveyor 100, the feeding device 200 and the good product shearing foot feeding device 800 to move in a synchronous manner.

[0068] Reference Figures 7-10 The main drive mechanism 300 includes a drive shaft 301, a main drive motor 302, and a plurality of drive bevel gears 303 coaxially connected to the drive shaft 301. The output end of the main drive motor 302 is coaxially connected to one end of the drive shaft 301. A conveying drive wheel 304 is connected to the drive shaft 301. The conveying drive wheel 304 is connected to the annular conveyor line 100 through a conveying drive assembly.

[0069] Reference Figures 5-7 The circular conveyor line 100 includes a circular toothed belt and a plurality of battery clamps 101, which are arranged at equal intervals around the periphery of the circular toothed belt. Preferably, the conveying drive assembly includes a conveying rotating wheel 102, a conveying shaft 103, and a conveying linkage wheel 104 for mating and connecting the circular toothed belt. The conveying rotating wheel 102 is mounted on one end of the conveying shaft 103 and is mated and driven by the conveying drive wheel 304. The conveying linkage wheel 104 is mounted on the other end of the conveying shaft 103 and is driven by the circular toothed belt.

[0070] The main drive mechanism, the circular conveyor line, and its conveyor drive components constitute the core of the power delivery system for transporting batteries. A single main drive motor drives the drive shaft, which in turn drives the circular toothed belt and the battery clamps on it in a cyclical motion via the drive bevel gear, the conveyor drive wheel, and the conveyor drive components, thus achieving the physical connection of all workstations on a continuous closed-loop conveyor line.

[0071] By integrating feeding, testing, formation, capacity testing, and unloading with the circular conveyor line, the physical isolation and time breaks between each process are eliminated, enabling batteries to flow automatically and continuously on the same conveyor system. This lays a solid mechanical foundation for the full-process automation and significantly improves the continuity of production cycle and the overall space utilization efficiency of the equipment.

[0072] Specifically, in this embodiment, the battery clamp 101 includes a limiting frame, a pressure rod, and a spring. The limiting frame is connected to an annular toothed belt. The limiting frame has a material slot for clamping the battery inside, and a wire-passing opening for the battery pins is provided on the side of the limiting frame. The pressure rod is telescopically inserted into the material slot, and its other end passes through the annular toothed belt to form an unlocking end. The spring is pressed between the material slot and the pressure rod, and the spring continuously applies a force to the pressure rod to clamp the battery. When it is necessary to remove the battery from the material slot, the pressure rod overcomes the spring force by pulling the unlocking end, thereby releasing the clamping force of the pressure rod on the battery.

[0073] Specifically, in this embodiment, the workbench is equipped with a pulling mechanism for pulling the unlocking end to unlock and release the battery by pulling the pressure rod. The corresponding components 204 for feeding, 901 for pushing, 600 for formation, 10a for second defect removal, 700 for capacity testing, 20c for third straightening testing, 10b for third defect removal, and 10c for fourth defect removal are all equipped with a pulling mechanism. It should be noted that the pulling mechanism can be a telescopic cylinder or a motor-driven mechanism. As long as the pressure rod retracts against the spring force, the battery can be easily removed from the material tank.

[0074] Reference Figure 1 , Figure 9 and Figure 10 The feeding device 200 includes a feeding vibratory feeder 201, a first clamping and feeding mechanism 202 for clamping capacitive batteries, a lead-sorting testing mechanism 203 for sorting and testing the leads of capacitive batteries, and a feeding assembly 204. The feeding vibratory feeder 201 is paired with the first clamping and feeding mechanism 202 through a transmission channel, so that the feeding vibratory feeder 201 conveys batteries to the first clamping and feeding mechanism 202 through vibration.

[0075] Reference Figure 11The first clamping and feeding mechanism 202 includes a support base 2021, a guide member 2022 disposed on the support base 2021, a transfer seat 2023 mounted on the guide member 2022, five clamping claws 2024 mounted on the transfer seat 2023, and a drive plate 2025 for driving the clamping claws 2024 to open. The guide path of the guide member 2022 extends towards the battery clamp 101. The transfer seat 2023 can drive the multiple clamping claws 2024 to perform step-by-step reciprocating movement. The clamping claws 2024 include a first transfer claw 20241, a second transfer claw 20242, and an opening mechanism. The opening and closing teeth 20243 are rotatably mounted on the transfer seat 2023. One adjacent end of the first transfer jaw 20241 and the second transfer jaw 20242 forms a clamping portion, and the other end of the first transfer jaw 20241 and the second transfer jaw 20242 forms a toothed portion that meshes with the opening and closing teeth 20243. The drive plate 2025 is connected to the first transfer jaw 20241. The transfer seat 2023 is provided with a clamping drive member 205 for driving the first transfer jaw 20241 to move relative to the second transfer jaw 20242 closer to apply clamping force. (The clamping drive member 205 is composed of a telescopic cylinder.)

[0076] Preferred, refer to Figures 9-11 The first clamping and feeding mechanism 202 further includes a first opening drive rod 2026 for controlling the drive plate 2025 to move the first transfer gripper 20241. The first opening drive rod 2026 is hinged to the support base 2021. One end of the first opening drive rod 2026 extends toward and contacts the drive plate 2025, and the other end of the first opening drive rod 2026 contacts the feeding drive cam 403. Rollers are connected to both ends of the first opening drive rod 2026 and the second opening drive rod 805.

[0077] Reference Figure 9 and 12 The transfer seat 2023 is connected to a drive bevel gear 303 via a first transfer drive component 407. The first transfer drive component 407 includes a first transfer plate 4071, a first rotary drive shaft 4072, and a first drive wheel 4073. One end of the first rotary drive shaft 4072 is meshed with the drive bevel gear 303 via a rotary bevel gear 4074. A drive groove is formed on the outer side of the first rotary drive shaft 4072. The first transfer plate 4071 moves linearly via a moving component. One end of the first transfer plate 4071 is connected to the first drive wheel 4073. The first drive wheel 4073 is paired with the drive groove. The other end of the first transfer plate 4071 is connected to the transfer seat 2023 via a transfer pull rod 206.

[0078] Reference Figure 15 and 18The lead-sorting testing mechanism 203 includes a clamping plate 2031 and a set of clamping feet matched with the number of clamping claws 2024. The clamping feet set includes a pin assembly 2032, a lead assembly 2033, a detection assembly 2034 for testing the pins, and a steering assembly 2035. Two clamping plates 2031 are provided, and the two clamping plates 2031 can be close to or far apart from each other. The lead-sorting testing mechanism 203 also includes two lead-sorting drive levers 2036. The two lead-sorting drive levers 2036 are meshed with teeth, and the two lead-sorting drive levers 2036 are respectively connected to the two clamping plates 2031. The end of one lead-sorting drive lever 2036 away from the clamping plate 2031 contacts the lead-sorting drive cam 402.

[0079] Reference Figure 17 The pin assembly 2032 includes two pin holders 20321 arranged opposite to each other. The two pin holders 20321 are respectively mounted on two clamping plates 2031. One of the pin holders 20321 is connected to a pin block 20322 for separating the spacing between the two pins on the battery.

[0080] Reference Figure 16 and 18 The foot assembly 2033 includes a first foot base 20331, a second foot base 20332, a foot plate 20333, and two foot clamping blocks 20334. The first foot base 20331 and the second foot base 20332 are respectively mounted on the two clamping plates 2031. The two foot clamping blocks 20334 are hinged to both sides of the first foot base 20331. The foot plate 20333 is mounted on the side of the first foot base 20331 near the second foot base 20332 and is located between the two first and second foot bases 20332. The two foot clamping blocks 20334 clamp or open through lever movement. The second foot base 20332 is connected to a foot pusher plate 20335 for pushing the foot.

[0081] Reference Figures 15-16 The detection group 2034 includes a first pin detection seat 20341, a second pin detection seat 20342, and a presser foot detection plate 20343. The first pin detection seat 20341 and the second pin detection seat 20342 are respectively mounted on two clamping plates 2031. The presser foot detection plate 20343 is mounted on the first pin detection seat 20341. The inner side of the second pin detection seat 20342 is provided with a pressing groove that matches the presser foot detection plate 20343. The side of the first pin detection seat 20341 is provided with a detection sensor 20344 for sensing the presser foot detection plate 20343.

[0082] Reference Figure 15The steering assembly 2035 includes a steering motor 20351 and an opening and closing gripper 20352 mounted on the steering motor 20351. The output shaft of the steering motor 20351 is connected to the opening and closing gripper 20352, and the battery pin is rotated and reversed by the opening and closing gripper 20352.

[0083] Reference Figure 16 The feeding assembly 204 includes a feeding gripper 2041 and a rotary drive 2042. The rotary drive 2042 is connected to the feeding gripper 2041. The rotary drive 2042 can drive the feeding gripper 2041 to rotate by an angle, so that the rotation angle of the feeding gripper 2041 matches with the battery clamp 101 and clamps the battery pins.

[0084] The integrated feeding device achieves fully automated pre-processing of capacitive lithium batteries from disordered feeding to precise positioning, pin handling and testing through the coordinated work of the feeding vibratory feeder, the first clamping feeding mechanism, the pin sorting and testing mechanism and the feeding components.

[0085] The first clamping and feeding mechanism uses a stepping reciprocating motion combined with openable and closable grippers to achieve stable battery gripping and step-by-step transfer. The lead alignment and testing mechanism integrates lead insertion, alignment, detection, and steering functions. Before the battery enters the main line (circular conveyor line), it completes lead spacing adjustment, shaping, lead testing (positive and negative electrode length detection), and orientation correction (positive and negative electrode direction). This ensures that each battery is accurately placed on the battery holder in a standard state with correct posture and good lead condition, reducing subsequent testing errors or flow jams caused by lead problems or inaccurate positioning, and improving the stability and reliability of the entire line operation.

[0086] Preferably, the feeding assembly 204 further includes an opening drive rod 2043 and a lifting rod 2044 for driving the rotary drive component 2042 to rotate. The opening drive rod 2043 is hinged to the worktable. One end of the opening drive rod 2043 extends to the feeding gripper 2041 and can drive the feeding gripper 2041 to open. The other end of the opening drive rod 2043 contacts the clamping drive cam 404. The rotary drive component 2042 is composed of two synchronous pulleys and a synchronous belt that is connected in a closed loop around the two synchronous pulleys. One end of the lifting rod 2044 contacts the feeding drive cam 405, and the other end of the lifting rod 2044 is connected to the synchronous belt through a belt pressure block. The feeding gripper 2041 is connected to one of the synchronous pulleys, so that the rotation of the synchronous pulley can drive the feeding gripper 2041 to rotate.

[0087] The first transmission mechanism 400 includes a first transmission shaft 401, a lead-gripping drive cam 402 for driving the lead-gripping testing mechanism 203 to clamp the battery leads, a feeding drive cam 403 for driving the first clamping and feeding mechanism 202, a clamping drive cam 404 for driving the loading jaw 2041 to open and close, and a loading drive cam 405 for driving the rotary drive member 2042 to rotate the loading jaw 2041. Specifically, one end of the first transmission shaft 401 is meshed with at least one drive bevel gear 303 through a first transmission bevel gear 406, and the lead-gripping drive cam 402, the feeding drive cam 403, the clamping drive cam 404, and the loading drive cam 405 are mounted on the first transmission shaft 401.

[0088] The first transmission mechanism coordinates the various complex actions in the feeding device (opening and closing of the clamping plate of the foot-feeding mechanism, opening and closing of the clamping claw of the first clamping and feeding mechanism, and opening, closing and rotation of the feeding claw) with the main drive mechanism through a first transmission shaft and multiple dedicated cams on it (foot-feeding drive cam, first opening drive cam, clamping drive cam, and feeding drive cam).

[0089] This ensures that all sub-actions at the loading station coordinate with the main conveying motion of the circular conveyor line. The cam-driven mechanical linkage ensures precise and reliable timing of each action, eliminating the need for complex coordination by an additional independent control unit. This achieves automatic connection between the loading process and the main line cycle, further improving automation and consistency, and avoiding interference or waiting time that may be introduced by asynchronous electrical sensing signals from multiple drive designs.

[0090] Reference Figure 24 and 27 The good product shearing and feeding device 800 includes a feeding component 801 for removing batteries from the battery clamp 101, a second clamping and feeding mechanism 802 for holding the batteries away from the battery clamp 101, a shearing mechanism 803 for cutting the battery pins, and a good product export component 804.

[0091] The unloading assembly 801 includes an unloading gripper 8011 and a rotating component 8012. The unloading gripper 8011 is mounted on the rotating component 8012. The rotating component 8012 can drive the unloading gripper 8011 to rotate through the second transmission mechanism 500, so that the rotation angle of the unloading gripper 8011 matches with the battery clamp 101 and clamps the battery pins for unloading.

[0092] Specifically, the rotating component 8012 is a gear, a spur rack 7032, a timing pulley, and a timing belt. The unloading gripper 8011 is connected to the gear and is opened by the drive of the opening cylinder or the drive of the clamping cylinder.

[0093] It should be noted that the second clamping and feeding mechanism 802 has the same structure and operating principle as the first clamping and feeding mechanism 202, and will not be described in detail here.

[0094] The second transmission mechanism 500 includes a second transmission shaft 501, a second transfer drive member 504 for driving the second clamping and feeding mechanism 802, and a feeding drive cam 502 for driving the rotating member 8012 to rotate the feeding jaw 8011. The second transmission shaft 501 is driven by a second transmission bevel gear 503 meshing with at least one active bevel gear 303. The second clamping and feeding mechanism 802 has the same structure as the first clamping and feeding mechanism 202. The second clamping and feeding mechanism 802 also includes a second opening drive rod 805, which contacts the second opening drive cam.

[0095] The second transfer drive component 504 includes a second transfer plate 5041, a second rotary drive shaft 5042, and a second drive wheel 5043. The second rotary drive shaft 5042 is connected to the second drive shaft 501. A guide groove is formed on the outer side of the second rotary drive shaft 5042. The second transfer plate 5041 moves linearly through a sliding member. One end of the second transfer plate 5041 is connected to the second drive wheel 5043. The second drive wheel 5043 is paired with the guide groove. The other end of the second transfer plate 5041 is connected to the transfer seat 2023 of the second clamping and feeding mechanism 802 through a feeding rod 5044.

[0096] The shearing mechanism 803 includes a base 8031, two shearing blocks 8032 and two cutters 8033 disposed on the base 8031. The two shearing blocks 8032 are hinged to the base 8031 ​​and disposed opposite to each other. The two cutters 8033 are respectively mounted on the two shearing blocks 8032. The shearing blocks 8032 can drive the cutters 8033 to shear in a lever-based manner through the shearing drive member 8034 on the base 8031.

[0097] The good product export assembly 804 includes a good product export gripper 8041 and a steering drive 8042. The good product export gripper 8041 is mounted on the steering drive 8042 and can grip the cut battery, so that the steering drive 8042 can drive the battery to rotate and export through the good product export gripper 8041.

[0098] The high-quality battery shearing and feeding device integrates feeding, transfer, shearing, and export functions, realizing fully automated processing of finished batteries from the circular conveyor line to final collection. The cooperation between the feeding component and the second clamping and feeding mechanism mimics the reverse flow of the feeding process, achieving smooth transfer from the fixture to the subsequent station.

[0099] The shearing mechanism can cut the positive and negative leads of the battery. This ensures that good batteries are removed, trimmed, and exported in the correct sequence, completing the final closed loop of the production process and achieving unmanned operation from start to finish, thus improving work efficiency and consistency.

[0100] The open end of the formation cabinet 600 extends toward the circular conveyor line 100, so that the formation cabinet 600 can clamp the battery into the cabinet for formation and then place it back onto the circular conveyor line 100.

[0101] Reference Figure 2 and 4 The formation cabinet 600 includes a formation machine housing 601, a circulating conveyor line 602 disposed inside the formation machine housing 601, and a plurality of clamping racks 603 disposed on the circulating conveyor line 602. The interior of the formation machine housing 601 forms a formation cavity. The clamping racks 603 are arranged at equal intervals along the conveying path of the circulating conveyor line 602. The clamping racks 603 are opened or clamped by the drive of the clamping drive member 604.

[0102] The formation cabinet used in the formation process is directly integrated into the formation station of the circular conveyor line. Its open end faces the conveyor line, and it is equipped with a circulating conveyor line and a clamping bar inside, so that the battery on the battery clamp can be directly clamped and enter the formation chamber for formation under the rotation of the circulating conveyor line (in reverse, i.e. away from the circular conveyor line). After one cycle of formation is completed, the battery is put back into the conveyor line through the clamping bar.

[0103] This technology has transformed the traditional independent and isolated operation mode of formation equipment, enabling online and uninterrupted connection between the formation process and the preceding and following testing and transfer processes. Batteries no longer require manual handling or re-clamping after leaving the main conveyor line, preventing risks of contact impedance changes and operational errors that may be introduced by manual handling or repositioning. This significantly improves the automation level of the formation process and the continuity of the overall production flow.

[0104] Preferably, the specific structure of the clamping rack 603 can be referred to the clamping component 701 in the capacity testing mechanism 700, and the specific structure of the clamping drive 604 can be referred to the opening and closing driver 703 in the capacity testing mechanism 700. The structure of the clamping rack 603 is the same as the clamping structure of the clamping component 701, and the structure of the clamping drive 604 is the same as the structure of the opening and closing driver 703. It should be noted that the clamping and formation of the formation cabinet 600 are conventional technical means for those skilled in the art, and will not be described in detail here.

[0105] Reference Figure 28The first straightening test mechanism 20a, the second straightening test mechanism 20b, and the third straightening test mechanism 20c each include a support block 20b1, an upper rotating shaft 20b2, a lower rotating shaft 20b3, an upper straightening gripper 20b4, a lower straightening gripper 20b5, an upper test gripper 20b6, and a lower test gripper 20b7. The upper rotating shaft 20b2 and the lower rotating shaft 20b3 are rotatably connected to the support block 20b1, and both ends of the upper rotating shaft 20b2 and the lower rotating shaft 20b3 extend towards both sides of the support block 20b1. The upper straightening gripper 20b4 and the lower straightening gripper 20b5 are respectively installed at one end of the upper rotating shaft 20b2 and the lower rotating shaft, and the upper straightening gripper 20b4 and the lower straightening gripper 20b5 are arranged opposite to each other. The upper test gripper 20b6 and the lower test gripper 20b7 are respectively installed at the other end of the upper rotating shaft 20b2 and the lower rotating shaft, and the upper test gripper 20b6 and the lower test gripper 20b7 are arranged opposite to each other. A test block 20b8 is provided between the upper test gripper 20b6 and the lower test gripper 20b7.

[0106] The upper rotating shaft 20b2 and the lower rotating shaft 20b3 are driven by the meshing of the upper gear 20b9 and the lower gear 20b10. The upper rotating shaft 20b2 or the lower rotating shaft 20b3 is connected to a straightening test drive component 20b11 for rotational drive.

[0107] The first, second, and third alignment and testing mechanisms are distributed at different key nodes on the conveyor line. Through their unique mechanical structure (upper / lower rotating shafts, gear meshing, upper / lower alignment grippers, and upper / lower test grippers linkage), they achieve a unified function of "alignment" and "testing." These alignment and testing mechanisms are located at points on the circular conveyor line where positional shifts may occur, actively and mechanically aligning the batteries to ensure accurate positioning within the battery holders. Simultaneously, after the alignment action, electrical tests (such as voltage and internal resistance) are performed using the test grippers and test blocks.

[0108] Specifically, the straightening test drive component 20b11 of the first straightening test mechanism is a swing rod connected to a cam on the drive shaft 301. The other end of the swing rod is connected to the upper gear 20b9 or the lower gear 20b10, so that when the swing rod swings under the drive of the cam, it can drive the upper gear 20b9 or the lower gear 20b10 to rotate by an angle to complete the straightening and testing.

[0109] Preferably, in this embodiment, the straightening test drive component 20b11 of the second straightening test mechanism 20b and the third straightening test mechanism 20c is a telescopic cylinder, which only needs to control the rotation of the upper gear 20b9 or the lower gear 20b10.

[0110] Specifically, the structures of the first, second, and third straightening test mechanisms in this embodiment are basically the same. As an example, only the second straightening test mechanism 20b is specifically labeled.

[0111] Specifically, the first, second, and third straightening and testing mechanisms are distributed at different key nodes of the conveyor line. Through their unique mechanical structure (upper / lower rotating shafts 20b3, gear meshing, and the linkage of upper / lower straightening grippers 20b5 and upper / lower testing grippers 20b7), they achieve the integration of "straightening" and "testing" functions. The straightening and testing mechanisms are distributed on the circular conveyor line 100. At battery pick-up and drop points (placement of the loading assembly 204, pick-up and drop of the clamping bar 603, and pick-up and drop of the clamping assembly 701), where positional deviations may occur, they actively perform mechanical straightening of the batteries, ensuring their accurate positioning within the battery clamp 101. Simultaneously, after the straightening action, electrical tests (such as voltage and internal resistance) are performed using the testing grippers and testing block 20b8.

[0112] Specifically, the first straightening test mechanism 20a is located between the first defect elimination mechanism 900 and the feeding component 204. When the battery is initially placed on the battery clamp 101 of the circular conveyor line 100, the first straightening test mechanism 20a can straighten the battery on the battery clamp 101 to ensure the accurate positioning of the battery clamp 101.

[0113] Specifically, the second straightening test mechanism 20b is located between the formation cabinet 600 and the second defect removal mechanism 10a. After the formation cabinet 600 removes the battery clamp from the circular conveyor line 100, it enters the formation chamber for formation and is then placed back on the circular conveyor line 100. The second straightening test mechanism 20b can straighten the battery on its battery clamp 101 and perform testing.

[0114] Specifically, the third straightening test mechanism 20c is located between the capacity test mechanism 700 and the unloading component 801. After the clamping component 701 clamps and removes the battery from the circular conveyor line 100, it rotates to perform the test on the test component 702 (the test time is, for example, 1.5 minutes. If five sets of clamping components 701 are used to clamp five sets of batteries at the same time, the test of the five sets of batteries will be completed within 7.5 minutes). The battery is then placed back on the circular conveyor line 100. The third straightening test mechanism 20c can straighten the battery on the battery clamp 101 and perform the test.

[0115] Specifically, the third defect elimination mechanism 10b is used to eliminate batteries with poor internal resistance, and the fourth defect elimination mechanism 10c is used to eliminate batteries that have no signal.

[0116] The first defect rejection mechanism 900 includes three sets of pusher cylinders 901, the telescopic ends of which extend toward the circular conveyor line 100. It is suitable for rejecting serious defects discovered early (such as testing for short circuits or continuity, open circuits, internal resistance, etc.).

[0117] The second defect removal mechanism 10a, the third defect removal mechanism 10b, and the fourth defect removal mechanism 10c all include a defect clamping cylinder 11a, a defect conveyor belt 12a, and a lifting drive 13a. The moving path of the lifting drive 13a extends toward the circular conveyor line 100. The defect clamping cylinder 11a is mounted on the lifting drive 13a, and the defect conveyor belt 12a is located below the defect clamping cylinder 11a, so that the defect clamping cylinder 11a can clamp the defective battery and place it on the defect conveyor belt 12a for conveying and collection through the downward drive of the lifting drive 13a.

[0118] Specifically, the second, third, and fourth defect removal mechanisms in this embodiment have the same structure; only the second defect removal mechanism is specifically described as an example. The second, third, and fourth defect removal mechanisms employ a combination of a "defect-holding cylinder + lifting drive + defect conveyor belt," which can accurately grip and transfer defective products discovered at different types or stages onto the defect conveyor belt. This achieves efficient, orderly, and categorized removal of defective products.

[0119] Specifically, in this embodiment, three sets of pusher cylinders 901 are provided. After the first straightening test mechanism 20a performs the test, the three pusher cylinders 901 are used to classify and unload defective materials (e.g., short circuit, open circuit, internal resistance, etc.). Corresponding receiving boxes are also provided on the worktable.

[0120] Preferably, the defective conveyor belt 12a has slots for pairing and holding batteries distributed along the circular conveying path, which further improves the consistency of collection and allows for manual sorting.

[0121] It should be noted that the lifting drive component 13a is composed of a lifting slide cylinder, which drives the faulty clamping cylinder 11a to move up and down. The faulty clamping cylinder 11a is composed of a finger cylinder.

[0122] The capacity testing station is equipped with a capacity testing mechanism 700. The capacity testing mechanism 700 includes five sets of clamping components 701 arranged alternately along the circumference and test components 702 that match the number of clamping components 701. This allows the five sets of clamping components 701 to be taken out of the circular conveyor line 100 in an alternating manner, tested by the test components 702, and then placed back on the circular conveyor line 100.

[0123] Reference Figure 19 and 23The capacity testing mechanism 700 further includes a rotating shaft 704, a rotating seat 705, and an opening and closing driver 703 for driving the clamping assembly 701 to perform opening and closing actions. The rotating seat 705 is paired and installed on the rotating shaft 704 so that the rotation of the rotating shaft 704 can drive the rotating seat 705 to rotate synchronously. One end of the rotating shaft 704 is connected to a rotation control component 706 for driving the rotating shaft 704 to rotate, and the other end of the rotating shaft 704 is connected to an electric slip ring 707.

[0124] The rotation control unit 706 includes a divider and a servo motor. The output end of the divider is connected to the rotation shaft 704 via a coupling, and the output shaft of the servo motor is connected to the input end of the divider.

[0125] When the servo motor starts, the rotating shaft 704 drives the clamping assembly 701 and the testing assembly 702 to rotate synchronously through the rotating seat 705. The circumferential rotation of each clamping assembly 701 passes through the opening and closing driver 703. When a set of clamping assemblies 701 rotates to match the opening and closing driver 703, the opening and closing driver 703 can drive the clamping assembly 701 to perform opening or clamping actions.

[0126] A rotating shaft drives a rotary table equipped with multiple clamping and testing components to rotate cyclically. While one set of clamping components is performing static capacity testing on a battery, a rotary drive unit propels the rotating shaft, allowing other idle clamping components to simultaneously retrieve batteries from the circular conveyor line or return tested batteries to the conveyor line. This parallel operation of overlapping testing and transfer actions significantly reduces the overall waiting time of batteries at the capacity testing station, effectively improving the testing throughput and production efficiency of the entire production line.

[0127] Specifically, the rotating seat 705 in this embodiment is composed of a decagon.

[0128] In some embodiments, the rotating base 705 is composed of other polygons such as hexagons, octagons, or decagons.

[0129] The polygonal structure of the rotating base provides a stable and precisely positioned mounting foundation for the clamping and testing components. The clamping components achieve reliable clamping through the lever principle and the opening and closing shaft, and their opening and closing action is mechanically triggered by a fixed opening and closing driver via gears, racks, and slots.

[0130] The significant technical effects and implementation data of this embodiment are as follows: By pairing five sets of clamping components 701 and five sets of testing components 702, the rotating shaft 704 drives the five sets of clamping components 701 and testing components 702 to rotate periodically, completing the testing of five sets of batteries in 7.5 minutes. One set of clamping components 701 is equipped with 45 upper jaws 7014 and lower jaws 7015, and one set of testing components 702 is equipped with 45 test circuit boards 7022. Under one cycle (7.5 minutes) of rotation, the capacity test of 225 batteries can be completed, significantly improving the testing efficiency.

[0131] Reference Figure 22 The clamping assembly 701 is paired and connected to the mounting part via the mounting base 710. The clamping assembly 701 includes a base plate 7011, a connecting block 7012, an opening clamping shaft 7013, an upper clamping jaw 7014, and a lower clamping jaw 7015. The upper clamping jaw 7014 and the lower clamping jaw 7015 are symmetrically connected to the mounting base 710 via an upper bracket 7016 and a lower bracket 7017, respectively. The upper bracket 7016 and the lower bracket 7017 are hinged to the mounting base 710 via an upper connecting frame 7018 and a lower connecting frame 7019, respectively. The base plate 7011 is mounted on the side of the mounting base 710 and is located between the upper clamping jaw 7014 and the lower clamping jaw 7015. The end of the opening clamping shaft 7013 is connected to the mounting base 710, and the rotation of the opening clamping shaft 7013 can be used to drive the upper connecting frame 7018 and the lower connecting frame to open or close relative to each other.

[0132] Preferably, the ends of the upper connecting frame 7018 and the lower connecting frame 7019 near the opening clamping shaft 7013 are both connected to rollers 708 that contact the outer surface of the opening clamping shaft 7013. The outer surface of the opening clamping shaft 7013 is provided with clamping contact portion 70131 and opening contact portion 70132 that are paired with the rollers 708. One end of the opening clamping shaft 7013 extends through the mounting base 710 toward the opening and closing driver 703 to form a driving portion. When the driving portion is inserted into the opening and closing driver 703, the opening and closing driver 703 can drive the opening clamping shaft 7013 to rotate.

[0133] Reference Figure 21 The opening and closing actuator 703 includes a bearing housing 7031, a rack 7032, a drive gear 7033 meshing with the rack 7032, an opening and closing rotating block 7034, and a drive cylinder 7035. The opening and closing rotating block 7034 passes through the drive gear 7033 and is rotatably connected to the bearing housing 7031. One end of the opening and closing rotating block 7034 is provided with an insertion slot 7036 for mating and inserting the drive part. The telescopic end of the drive cylinder 7035 is connected to one end of the rack 7032, so that under the telescopic drive of the drive cylinder 7035, the drive gear 7033 can drive the opening and closing rotating block 7034 to drive the opening clamping shaft 7013 to rotate.

[0134] The test assembly 702 is paired and connected to the mounting part 2 via the connector 709. The test assembly 702 includes a support plate 7021, a plurality of test circuit boards 7022 disposed on the support plate 7021, and a cooling fan 7023. The support plate 7021 is mounted on the connector 709. The test circuit boards 7022 can be used for power-on testing with a capacitive lithium battery. The cooling fan 7023 can provide cooling airflow to the heat sink fins and the test circuit boards 7022.

[0135] Preferably, the support plate 7021 is composed of heat dissipation fins.

[0136] The test assembly integrates a test circuit board and a directional cooling fan, enabling active air cooling of the heated capacitive lithium battery and the test circuit itself during testing. This structure ensures stable and reliable battery handling during high-frequency, long-term continuous testing, effectively controls the test temperature, and guarantees the accuracy of capacity test data and the long-term stability of the test system.

[0137] Specifically, the servo motor drives the divider to rotate the rotating shaft 704, causing the five sets of clamping components 701 on the rotating shaft 704 to rotate (counterclockwise). When one set of clamping components 701 passes the opening and closing driver 703, the driving part of its opening clamping shaft 7013 is paired with the insertion slot 7036 of the opening and closing rotating block 7034. The drive cylinder 7035 drives the rack 7032 to move linearly, so that the rotation of the drive gear 7033 can drive the opening clamping shaft 7013 to rotate through the opening and closing rotating block 7034. The upper jaw 7014 and lower jaw 7015 are paired with the substrate 7011 to clamp the positive and negative terminals (i.e., the two pins) into the subsequent test circuit board 7022 for circuit capacity testing. At the same time, the next set of clamping components 701 enters the opening and closing driver 703 to pair with each other, thereby repeatedly executing the opening and closing of the clamping components 701 to clamp the battery, which greatly reduces downtime and waiting time, effectively improves testing efficiency, and can meet the needs of high-efficiency production in large-scale battery production or batch testing scenarios.

[0138] The specific working process in this embodiment is as follows:

[0139] Feeding: The feeding vibratory plate 201 conveys batteries to the first clamping feeding mechanism 202 along the conveying channel through vibration; by rotating the main drive mechanism 300, the transfer seat 2023 drives the clamping claw 2024 to move closer to the conveying channel. The clamping drive component 205 can drive the first transfer claw 20241 to move closer to the second transfer claw 20242 to apply clamping force, thereby clamping the batteries on the conveying channel; and by the transfer pull rod 206, the transfer seat 2023 can drive the clamped batteries to move in the opposite direction (away from the conveying channel) to place the batteries on the clamping claw 2024 into the corresponding pin group 2032, pin group 2033, detection group 2034 and steering group 2035.

[0140] Simultaneously, driven by the main drive mechanism 300, the foot-aligning drive lever 2036 drives the two clamping plates 2031 to move closer. After repeated execution, each of the five clamping claws 2024 clamps one claw, enabling the pin assembly 2032, the pin alignment assembly 2033, the detection assembly 2034, and the steering assembly 2035 to complete the pin alignment, detection, and steering of the four batteries. Specifically, the pin assembly 2032 separates the two pins on the battery through the pin block 20322 to adjust the spacing between the positive and negative pins; the pin alignment assembly 2033, driven by the approach of the two clamping plates 2031, uses the second pin alignment seat 20332 to press against one end of the two pin alignment clamping blocks 20334 through the extrusion block, causing the two pin alignment clamping blocks 20334 to form a clamp through lever movement, completing the pin alignment (flattening) action; the detection assembly 2034 moves towards the pressure groove through the pressure foot detection plate 20343, causing the pressure adhesive detection plate... The longer end of the battery pin is identified as either the positive or negative terminal (preferably the longer pin is the positive terminal), and feedback is provided by the detection sensor 20344. When the pin closest to the battery clamp 101 is detected as the negative terminal, the battery is clamped by the opening and closing gripper 20352 on the steering assembly 2035. The output shaft of the steering motor 20351 rotates (e.g., 180 degrees) through the opening and closing gripper 20352 to ensure that the longer positive terminal of the battery is close to the circular conveyor line 100, improving the consistency of the feeding process. The feeding gripper 2041 clamps the battery pin, and the rotation drive 2042 can drive the feeding gripper 2041 to rotate (e.g., 90 degrees) toward the battery clamp 101, so that the feeding gripper 2041 clamps the battery parallel to the battery clamp 101. With the descent of the lifting rod 2044, the battery is placed on the battery clamp 101 in conjunction with the battery clamp 101.

[0141] First alignment test: Under the rotation of the annular toothed belt, the battery clamp 101 holding the battery rotates into the first alignment test mechanism 20a. First, it passes through the alignment end, and is aligned by the upper alignment jaw 20b4 and the lower alignment jaw 20b5. Then, under the continued rotation of the annular toothed belt, the aligned battery enters the test end of the first alignment test mechanism 20a. The positive and negative ends of the battery are clamped by the upper test jaw 20b6 and the lower test jaw 20b7 for testing (e.g., voltage, internal resistance, etc.).

[0142] First defective product unloading: When the first test detects defective products (e.g., short circuit, open circuit, internal resistance) abnormalities, the battery clamp 101 is released and the battery is pushed out of the battery clamp 101 by the push cylinder 901, so that it falls into the corresponding collection box after being sorted.

[0143] Formation: Under the rotation of the circular conveyor line 100, the battery enters the formation process. The number of batteries to be held by the corresponding clamping bar 603 is set. The battery on the battery fixture 101 is clamped by the clamping bar 603 and enters the formation chamber for formation under the conveying of the circulating conveyor line 602 (that is, the battery is first charged and activated in the formation cabinet 600 in a high temperature and negative pressure environment, and a solid electrolyte interface film (i.e., SEI film) is built on the negative electrode surface by a small current). After that, the activated battery is placed back on the battery fixture 101 by the clamping bar 603.

[0144] Second alignment test: The battery clamp 101 holding the battery rotates into the second alignment test mechanism 20b. After being aligned by the alignment end, it enters the test end of the second alignment test mechanism 20b under the continued rotation of the annular toothed belt to perform positive and negative terminal tests on the battery (e.g., voltage, internal resistance, etc.).

[0145] Second defective unloading: When the second test detects defective products, the battery clamp 101 is released from the battery, and the defective battery is clamped by the defective clamping cylinder 11a on the second defective removal mechanism 10a. The battery is then placed on the defective conveyor belt 12a for transport and collection using the descent drive of the lifting drive 13a.

[0146] Capacity testing: As the circular conveyor line 100 continues to transport the batteries, they enter the capacity testing process. Multiple batteries are clamped by the clamping assembly 701, and driven by the servo motor, the five sets of clamping assemblies 701 can alternately pick up and put down batteries for testing, reducing the waiting time of the batteries at the capacity testing station and further improving testing efficiency.

[0147] The third alignment test: After the capacity test, the battery is placed back into the battery clamp 101 and enters the third alignment test mechanism 20c. After being aligned by the alignment end, the battery enters the test end of the third alignment test mechanism 20c under the continued rotation of the annular toothed belt to perform positive and negative terminal tests (e.g., voltage, internal resistance).

[0148] Good Product Unloading: When the third test detects a good product, the rotating part 8012, driven by the second transmission mechanism 500, drives the unloading jaw 8011 to rotate, so that the unloading jaw 8011 matches with the battery clamp 101 and clamps the battery pins for unloading. Under the reverse rotation (90 degrees) of the rotating part 8012, the battery pin ends face downwards. Driven by the feeding rod 5044, the second clamping feeding mechanism 802 moves and clamps the battery on the unloading jaw 8011 into the shearing mechanism 803. The shearing drive part 8034 on the base 8031 ​​drives the shearing block 8032 to drive the cutter 8033 to shear the battery pins to the same length using the lever principle. Under the movement of the second clamping feeding mechanism 802, the sheared battery is placed in the export jaw for turning (90 degrees) and exported, thus completing the good product unloading and export.

[0149] Defective battery classification and collection: When an abnormality occurs during the third straightening test, the type of abnormality (voltage, internal resistance failure, or no signal, etc.) is detected. The abnormal battery is transported by the circular conveyor line 100 into the corresponding third or fourth defective station, where it is classified and collected by the third defective removal mechanism 10b and the fourth defective removal mechanism 10c. Specifically, the battery clamp is released by the battery clamp 101, and the defective battery is clamped by the defective clamping cylinder 11a on the third defective removal mechanism 10b or the fourth defective removal mechanism 10c. The battery is then placed on the defective conveyor belt 12a for transport and collection using the descent drive of the lifting drive component 13a.

[0150] In summary, all of these embodiments aim to design a fully automated, continuous, and tightly scheduled fully automated production and testing line for capacitive lithium batteries, thereby achieving fully automated production throughout the entire process and improving the production efficiency of formation and testing.

[0151] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A fully automated testing machine for capacitive lithium batteries, comprising a cabinet and a workbench mounted on the cabinet, characterized in that: The workbench is equipped with a circular conveyor line forming a closed loop. Along the conveying path of the circular conveyor line, the workbench is arranged with the following stations in sequence: loading station, first straightening test station, first defect removal station, formation station, second straightening test station, second defect removal station, capacity test station, third straightening test station, good product shearing and loading station, third defect removal station and fourth defect removal station. The feeding station is equipped with a feeding device for feeding materials to the circular conveyor line. The feeding device includes a feeding vibratory feeder, a first clamping feeding mechanism for clamping capacitive batteries, a lead-sorting testing mechanism for sorting and testing the leads of the capacitive batteries, and a feeding assembly. The feeding vibratory feeder is paired with the first clamping feeding mechanism through a transmission channel, so that the feeding vibratory feeder feeds the batteries to the first clamping feeding mechanism through vibration. The pin testing mechanism includes a clamping plate and a pin clamping assembly. The pin clamping assembly includes a pin assembly, a pin alignment assembly, a detection assembly for testing the pins, and a steering assembly. There are two clamping plates, which can be close to or far apart from each other. The formation station is equipped with a formation cabinet, the opening of which extends toward the circular conveyor line, so that the formation cabinet can clamp the battery into the cabinet for formation and then place it back onto the circular conveyor line. The first, second, and third straightening test stations are respectively equipped with a first straightening test mechanism, a second straightening test mechanism, and a third straightening test mechanism. The first, second, and third straightening test mechanisms are used to straighten the batteries on the circular conveyor line and perform tests. The first defect removal station, the second defect removal station, the third defect removal station, and the fourth defect removal station are respectively equipped with a first defect removal mechanism, a second defect removal mechanism, a third defect removal mechanism, and a fourth defect removal mechanism. The first defect removal mechanism is used to remove defective batteries tested by the first straightening test mechanism, the second defect removal mechanism is used to remove defective batteries tested by the second straightening test mechanism, and the third and fourth defect removal mechanisms are used to classify and remove defective batteries tested by the third straightening test mechanism. The capacity testing station is equipped with a capacity testing mechanism, which includes three or more sets of clamping components arranged alternately along the circumference and test components that match the number of clamping components. This allows the three or more sets of clamping components to alternately clamp and remove the battery from the circular conveyor line, test it through the test components, and then place it back on the circular conveyor line. The good product shearing and feeding station is equipped with a good product shearing and feeding device. The good product shearing and feeding device is used to clamp the batteries on the circular conveyor line and cut the positive and negative leads of the batteries and unload the finished products. The good product shearing and feeding device includes a feeding component for removing the batteries from the battery clamp, a second clamping and feeding mechanism for clamping the batteries away from the battery clamp, a cutting mechanism for cutting the battery leads, and a good product export component. The circular conveyor line is connected to a main drive mechanism for driving its rotation. The feeding device is connected to the main drive mechanism through a first transmission mechanism, and the good product shearing device is connected to the main drive mechanism through a second transmission mechanism. The main drive mechanism can drive the circular conveyor line, the feeding device, and the good product shearing device to work synchronously.

2. The fully automated testing machine for capacitive lithium batteries according to claim 1, characterized in that: The main drive mechanism includes a drive shaft, a main drive motor, and multiple drive bevel gears coaxially connected to the drive shaft. The output end of the main drive motor is coaxially connected to one end of the drive shaft. A conveyor drive wheel is connected to the drive shaft, and the conveyor drive wheel is connected to the annular conveyor line through a conveyor drive assembly. The circular conveyor line includes a circular toothed belt and several battery clamps, which are arranged at equal intervals around the periphery of the circular toothed belt. The conveying drive assembly includes a conveying rotating wheel, a conveying shaft, and a conveying linkage wheel for pairing and connecting an annular toothed belt. The conveying rotating wheel is installed at one end of the conveying shaft and is paired and driven by the conveying drive wheel. The conveying linkage wheel is installed at the other end of the conveying shaft and is driven by the annular toothed belt.

3. The fully automated testing machine for capacitive lithium batteries according to claim 2, characterized in that: The first clamping and feeding mechanism includes a support base, a guide member disposed on the support base, a transfer seat mounted on the guide member, multiple clamping claws mounted on the transfer seat, and a drive plate for driving the clamping claws to open. The guide path of the guide member extends to the battery clamp. The transfer seat can drive the multiple clamping claws to perform step-by-step reciprocating movement. The clamping claws include a first transfer claw, a second transfer claw, and opening and closing teeth. The opening and closing teeth are rotatably mounted on the transfer seat. One end of the first transfer claw and the second transfer claw adjacent to each other forms a clamping part, and the other end of the first transfer claw and the second transfer claw forms a toothed part that meshes with the opening and closing teeth. The drive plate is connected to the first transfer claw. The transfer seat is provided with a clamping drive member for driving the first transfer claw to move relative to the second transfer claw and approach to apply a clamping force. The transfer seat is connected to a drive bevel gear via a first transfer drive component. The first transfer drive component includes a first transfer plate, a first rotary drive shaft, and a first drive wheel. One end of the first rotary drive shaft meshes with the drive bevel gear via a rotary bevel gear. A drive groove is formed on the outer side of the first rotary drive shaft. The first transfer plate moves linearly via a moving component. One end of the first transfer plate is connected to the first drive wheel, which is paired with the drive groove. The other end of the first transfer plate is connected to the transfer seat via a transfer pull rod. The pin assembly includes two pin holders arranged opposite each other, which are respectively mounted on two clamping plates. One of the pin holders is connected to a pin block for separating the two pin pitches on the battery. The foot assembly includes a first foot base, a second foot base, a foot plate, and two foot clamping blocks. The first and second foot bases are respectively mounted on two clamping plates. The two foot clamping blocks are hinged to both sides of the first foot base. The foot plate is mounted on the side of the first foot base near the second foot base and is located between the two first and second foot bases. The two foot clamping blocks clamp or open through lever movement. The second foot base is connected to a foot-pushing plate for pushing the foot. The detection group includes a first pin detection socket, a second pin detection socket, and a presser foot detection plate. The first pin detection socket and the second pin detection socket are respectively mounted on two clamping plates. The presser foot detection plate is mounted on the first pin detection socket. The inner side of the second pin detection socket is provided with a pressing groove that matches the presser foot detection plate. The side of the first pin detection socket is provided with a detection sensor for sensing the presser foot detection plate. The steering assembly includes a steering motor and an opening and closing gripper mounted on the steering motor. The output shaft of the steering motor is connected to the opening and closing gripper, and the battery pin is rotated and reversed by the opening and closing gripper. The feeding assembly includes a feeding gripper and a rotary drive. The rotary drive is connected to the feeding gripper and can drive the feeding gripper to rotate by an angle, so that the rotation angle of the feeding gripper matches the battery clamp and clamps the battery pins.

4. The fully automated testing machine for capacitive lithium batteries according to claim 3, characterized in that: The first transmission mechanism includes a first transmission shaft, a lead-gripping drive cam for driving the lead-gripping test mechanism to clamp the battery leads, a first opening drive cam, a clamping drive cam for driving the loading jaws to open and close, and a loading drive cam for driving the rotary drive component to rotate the loading jaws. One end of the first drive shaft is driven by a first drive bevel gear meshing with a drive bevel gear. The foot-driving cam, the first opening drive cam, the clamping drive cam, and the feeding drive cam are mounted on the first drive shaft. The foot-aligning test mechanism also includes two foot-aligning drive levers, which are meshed with each other by teeth and are respectively connected to two clamping plates. The end of one of the foot-aligning drive levers away from the clamping plate contacts the foot-aligning drive cam. The first clamping and feeding mechanism also includes a first opening drive rod for controlling the drive plate to drive the first transfer gripper to move. The first opening drive rod is hinged to the support base. One end of the first opening drive rod extends toward the drive plate and contacts the drive plate, and the other end of the first opening drive rod contacts the first opening drive cam. The feeding assembly also includes an opening drive rod and a lifting rod for driving the rotary drive component to rotate. The opening drive rod is hinged to the worktable. One end of the opening drive rod extends to the feeding gripper and can drive the feeding gripper to open. The other end of the opening drive rod is in contact with the clamping drive cam. The rotary drive component is composed of two synchronous pulleys and a synchronous belt. One end of the lifting rod is in contact with the feeding drive cam, and the other end of the lifting rod is connected to the synchronous belt through a belt pressure block. The feeding gripper is connected to one of the synchronous pulleys, so that the rotation of the synchronous pulley can drive the feeding gripper to rotate.

5. The fully automated testing machine for capacitive lithium batteries according to claim 3, characterized in that: The unloading assembly includes an unloading gripper and a rotating component. The unloading gripper is mounted on the rotating component. The rotating component can drive the unloading gripper to rotate through the second transmission mechanism, so that the rotation angle of the unloading gripper matches the battery clamp and clamps the battery pins for unloading. The second transmission mechanism includes a second transmission shaft, a second opening drive cam, a second transfer drive member for driving the second clamping and feeding mechanism, and a feeding drive cam for driving the rotating member to rotate the feeding jaw. The second clamping and feeding mechanism has the same structure as the first clamping and feeding mechanism. The second clamping and feeding mechanism also includes a second opening drive rod, which contacts the second opening drive cam. The second transfer drive component includes a second transfer plate, a second rotary drive shaft, and a second drive wheel. The second rotary drive shaft is connected to the second drive shaft, and a guide groove is formed on the outer side of the second rotary drive shaft. The second transfer plate moves linearly through a sliding member. One end of the second transfer plate is connected to the second drive wheel, and the second drive wheel is paired with the guide groove. The other end of the second transfer plate is connected to the transfer seat of the second clamping and feeding mechanism through a feeding rod. The shearing mechanism includes a base, two shearing blocks and two cutters mounted on the base. The two shearing blocks are hinged to the base and arranged opposite to each other. The two cutters are respectively mounted on the two shearing blocks. The shearing blocks can drive the cutters to shear using the lever principle through a shearing drive component on the base. The good product export assembly includes a good product export gripper and a steering drive unit. The good product export gripper is mounted on the steering drive unit and can hold the cut battery, so that the steering drive unit can drive the battery to rotate and export through the good product export gripper.

6. The fully automated testing machine for capacitive lithium batteries according to claim 1, characterized in that: The formation cabinet includes a formation machine box, a circulating conveyor line set inside the formation machine box, and several clamping bars set on the circulating conveyor line. The interior of the formation machine box forms a formation cavity. The clamping bars are arranged at equal intervals along the conveying path of the circulating conveyor line. The clamping bars are opened or clamped by the drive of the clamping drive component.

7. The fully automated testing machine for capacitive lithium batteries according to any one of claims 1-6, characterized in that: The first, second, and third straightening test mechanisms each include a support block, an upper rotating shaft, a lower rotating shaft, an upper straightening gripper, a lower straightening gripper, an upper test gripper, and a lower test gripper. The upper and lower rotating shafts are rotatably connected to the support block, and both ends of the upper and lower rotating shafts extend towards both sides of the support block. The upper and lower straightening grippers are respectively installed at one adjacent end of the upper and lower rotating shafts, and are arranged opposite to each other. The upper and lower test grippers are respectively installed at the other adjacent end of the upper and lower rotating shafts, and are arranged opposite to each other. A test block is provided between the upper and lower test grippers. The upper and lower rotating shafts are driven by meshing upper and lower gears, and the upper or lower rotating shaft is connected to a straightening test drive component for rotational drive.

8. The fully automated testing machine for capacitive lithium batteries according to any one of claims 1-6, characterized in that: The first defect elimination mechanism includes multiple sets of pusher cylinders, and the telescopic ends of the multiple sets of pusher cylinders all extend toward the circular conveyor line. The second, third, and fourth defective removal mechanisms all include a defective clamping cylinder, a defective conveyor belt, and a lifting drive. The moving path of the lifting drive extends toward the circular conveyor line. The defective clamping cylinder is mounted on the lifting drive, and the defective conveyor belt is located below the defective clamping cylinder, so that the defective clamping cylinder can clamp the defective battery and place it on the defective conveyor belt for conveying and collection through the descent drive of the lifting drive.

9. The fully automated testing machine for capacitive lithium batteries according to any one of claims 1-6, characterized in that: The capacity testing mechanism also includes a rotating shaft, a rotating seat, and an opening and closing driver for driving the clamping assembly to open and close. The rotating seat is paired and mounted on the rotating shaft so that the rotation of the rotating shaft can drive the rotating seat to rotate synchronously. One end of the rotating shaft is connected to a rotating drive component for driving the rotating shaft to rotate, and the other end of the rotating shaft is connected to an electric slip ring. When the rotary drive is activated, the rotary shaft drives the clamping assembly and the test assembly to rotate synchronously through the rotary seat. The circumferential rotation of each clamping assembly passes through the opening and closing driver. When a set of clamping assemblies rotates to match the opening and closing driver, the opening and closing driver can drive the clamping assembly to perform opening or clamping actions.

10. The fully automated testing machine for capacitive lithium batteries according to claim 9, characterized in that: The rotating base is fixedly connected to the rotating shaft. The rotating base is composed of polygons, and mounting parts one and two for mounting the clamping assembly and the test assembly are arranged sequentially on the side of the rotating base. The clamping assembly is paired and connected to the mounting part via the mounting base. The clamping assembly includes a base plate, a connecting block, an opening clamping shaft, an upper clamping jaw, and a lower clamping jaw. The upper clamping jaw and the lower clamping jaw are symmetrically connected to the mounting base via an upper bracket and a lower bracket, respectively. The upper bracket and the lower bracket are hinged to the mounting base via an upper connecting frame and a lower connecting frame, respectively. The base plate is mounted on the side of the mounting base and located between the upper clamping jaw and the lower clamping jaw. The end of the opening clamping shaft is connected to the mounting base, and the rotation of the opening clamping shaft can be used to drive the upper connecting frame and the lower connecting frame to open or close to each other. The opening and closing actuator includes a bearing housing, a rack, a gear meshing with the rack, an opening and closing rotating block, and a drive cylinder. The opening and closing rotating block passes through the gear and is rotatably connected to the bearing housing. One end of the opening and closing rotating block is provided with an insertion slot for mating and inserting the drive unit. The telescopic end of the drive cylinder is connected to one end of the rack, so that under the telescopic drive of the drive cylinder, the gear can drive the opening and closing rotating block to drive the opening clamp shaft to rotate. The test assembly is paired with the mounting part via a connector. The test assembly includes a support plate, several test circuit boards mounted on the support plate, and a cooling fan. The support plate is mounted on the connector. The test circuit boards can be used for power-on testing with a capacitive lithium battery. The cooling fan can provide cooling airflow to the heat sink fins and the test circuit boards.

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