A zinc ion battery tab welding inspection device

Abstract

The application belongs to the technical field of battery processing, and particularly discloses a zinc ion battery tab welding, detecting and assembling device, which comprises a conveying channel for conveying the battery; a point bottom welding mechanism, a gasket assembling mechanism and a port forming mechanism are sequentially arranged along the conveying direction of the conveying channel; the point bottom welding mechanism is used for welding the lower tab of the battery and the bottom of the shell; the gasket assembling mechanism is used for punching and assembling the insulating gasket into the battery shell; the port forming mechanism comprises a port rolling groove and an inner wall glue coating; the zinc ion battery tab welding, detecting and assembling device further comprises a detecting and sorting mechanism. The key processes such as tab welding, point bottom welding, multi-channel online detection, insulating gasket assembly and port forming are integrated in the continuous automatic assembly line, which helps to optimize the production rhythm, reduce the material turnover and waiting time between processes, and thus supports realizing higher production efficiency and capacity output in a compact space.

Description

Technical Field

[0001] This invention relates to the field of battery cell processing technology, and in particular to a zinc ion battery cell tab welding and inspection equipment. Background Technology

[0002] In the manufacturing of cylindrical zinc-ion batteries, after the cell is encased, multiple processes are required, including tab welding, safety testing, insulating pad assembly, and port forming. Currently, production mainly relies on multiple independent machines operating in segments, forming a discrete layout. This model results in lengthy production lines, large floor space, and the need for cells to be transferred and repositioned repeatedly between different machines, which is not only inefficient but also prone to cumulative errors and impact damage, affecting product consistency and yield. Crucially, core tests that determine battery safety (such as welding strength and internal insulation) are usually relegated to downstream or offline processes in this model, unable to be linked to the manufacturing process in real time. Defective cells are difficult to remove in a timely manner, posing quality and safety risks. Therefore, existing technologies face significant shortcomings in terms of production efficiency, precision control, and safety assurance. Summary of the Invention

[0003] Therefore, it is necessary to provide a zinc ion battery cell tab welding and inspection equipment to solve at least one of the technical problems in the background art.

[0004] A zinc ion battery cell tab welding and inspection equipment includes a conveying channel for conveying battery cells; along the conveying direction of the conveying channel, a spot welding mechanism, a gasket assembly mechanism, and a port forming mechanism are sequentially arranged. The bottom welding mechanism is used for welding the lower electrode tab of the battery cell to the bottom of the casing; The gasket assembly mechanism is used to punch out insulating gaskets and assemble them into the cell housing; The port forming mechanism includes a grooving assembly and a dispensing assembly for grooving the port and applying adhesive to the inner wall; The zinc ion battery cell tab welding and inspection equipment also includes: an inspection and sorting mechanism, used to inspect and screen defective products during the processing.

[0005] Preferably, the spot welding mechanism includes two identical spot welding components arranged in parallel. Each spot welding component includes a welding needle, a welding needle drive cylinder, and a slag adsorption component. The welding needle drive cylinder is used to drive the welding needle to rise and fall. The slag adsorption component is arranged adjacent to the welding needle. The two spot welding components are set to work alternately.

[0006] Preferably, the gasket assembly mechanism includes a double-reel feeding assembly and a blanking assembly. The double-reel feeding assembly includes a gasket unloading tray and a waste recycling tray, which are connected by gasket rolls. The blanking assembly includes a stamping needle, a circular blanking die, and a blanking drive. The stamping needle and the circular blanking die are arranged adjacent to each other and are both driven by the blanking drive. A waste adsorption component is also provided on the side of the blanking assembly.

[0007] Preferably, the grooving assembly of the port forming mechanism includes a lateral positioning component, an upper pressing component, a first rotary motor, a roller cutter, and a cam drive component; the lateral positioning component is disposed on the side of the conveying path, the upper pressing component is disposed above the conveying path, the first rotary motor is disposed below the conveying path, the cam drive component is used to drive the roller cutter to push the battery cell housing, and the grooving assembly is also provided with a waste adsorption component; the dispensing assembly includes a dispensing head and a second rotary motor, the second rotary motor is used to drive the battery cell to rotate and cooperate with the dispensing head to apply sealant to the inner wall of the battery cell port.

[0008] Preferably, the detection and sorting mechanism specifically includes: The through-hole inspection component, installed before the spot welding mechanism, is used to inspect the patency of the center hole of the battery cell. The pull-out force detection component, located after the spot welding mechanism, is used to test the welding strength. A short-circuit detection component is installed before the gasket assembly mechanism to test the insulation performance between the cell casing and the electrode tab. The sensing and detection component, located after the gasket assembly mechanism, is used to detect the presence or absence of insulating gaskets. The vision inspection component, located after the dispensing assembly, is used for the final inspection of the battery cell. And, a first diversion component, a second diversion component and a third diversion component are sequentially arranged along the conveying path of the conveying channel; The first diversion component is located after the pull-out force detection component; the second diversion component is located after the sensing detection component; and the third diversion component is located after the vision detection component.

[0009] Preferably, the first diversion assembly, the second diversion assembly, and the third diversion assembly all include a defective product channel and a defective product pusher cylinder; The first and second diversion components are each independently equipped with two sets of defective product channels and defective product push cylinders; the third diversion component is equipped with one set of defective product channels and defective product push cylinders; each set of defective product channels and defective product push cylinders are located on the side of the conveying channel, and the defective product push cylinders are correspondingly set with the defective product channels.

[0010] Preferably, the equipment further includes a feeding mechanism located at the beginning of the conveying channel. The feeding mechanism includes a feeding push cylinder and a feeding conveyor line. The feeding push cylinder is used to push the battery cell into the feeding conveyor line.

[0011] Preferably, an electrode tab welding mechanism is also provided between the feeding conveyor line and the spot welding mechanism; the electrode tab welding mechanism includes a first correction component, a pre-welding component and a first clamping component arranged sequentially along the conveying direction; the first correction component includes a rotating component and a photoelectric sensing component, the rotating component and the photoelectric sensing component are respectively arranged on both sides of the conveying channel, the pre-welding component includes a clamping component and a welding component, the clamping component and the welding component are respectively used to clamp and weld the electrode tabs on the top of the battery cell, and the first clamping component is used to clamp and flatten the welded electrode tabs.

[0012] Preferably, the conveying channel includes a turntable conveying section that connects to the good product outlet of the first diversion component; the turntable conveying section has a ring structure and multiple cell fixing positions are provided on it; Along the circular conveying direction of the turntable conveying section, a second correction component, a cell pressing component, and a second clamping component are sequentially arranged on the outer side of the turntable conveying section. The second correction component, the cell pressing component, and the second clamping component are used to perform secondary positioning and calibration of the cell tabs, press the cell body and the outer shell together, and clamp and flatten the tabs again, respectively. The gasket assembly mechanism is located after the cell pressing assembly along the circular conveying direction, and the good product outlet of the turntable conveying section is connected to the port forming mechanism.

[0013] Preferably, the equipment further includes a discharge mechanism located at the end of the conveying channel; the discharge mechanism includes a discharge pushing cylinder and a discharge conveying line, the discharge pushing cylinder being used to push the battery cell into the discharge conveying line.

[0014] The beneficial effects of this invention are as follows: 1. By integrating key processes such as tab welding, spot welding, multi-channel online inspection, insulating pad assembly, and port forming into a continuous automated production line, and adopting a dual-channel parallel layout, it helps to optimize production cycle time, reduce material turnover and waiting time between processes, thereby supporting high production efficiency and capacity output in a compact space.

[0015] 2. The equipment incorporates multi-dimensional online detection nodes in the processing flow, including through-hole detection, welding strength, and insulation resistance, forming a quality closed loop in conjunction with the subsequent defective product diversion mechanism. The diversion component can guide various defective products to independent physical channels for separation based on different upstream detection results. This design facilitates the immediate interception and classification of defective products during production, providing convenience for quality traceability and analysis.

[0016] 3. The spot welding mechanism adopts a dual-station alternating operation design, which allows one spot welding component to perform welding while the other spot welding component performs welding pin maintenance, which helps to reduce machine downtime caused by routine process maintenance; at the same time, the whole machine coordinates the operation of each mechanism and data acquisition through a unified control system, which helps to ensure process stability and support the monitoring and continuous operation of the production process. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall device according to an embodiment of the present invention.

[0018] Figure 2 This is a partial three-dimensional schematic diagram of the feeding mechanism in one embodiment of the present invention.

[0019] Figure 3 This is a three-dimensional schematic diagram of the tab welding mechanism, the bottom spot welding mechanism, and the first shunt assembly in one embodiment of the present invention.

[0020] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle.

[0021] Figure 5 This is a perspective view of a turntable conveyor section and some components in one embodiment of the present invention.

[0022] Figure 6 This is a three-dimensional schematic diagram of a gasket assembly mechanism according to an embodiment of the present invention.

[0023] Figure 7 This is a three-dimensional schematic diagram of the port forming mechanism in one embodiment of the present invention.

[0024] Figure 8 This is a partially exploded view of the grooving assembly in one embodiment of the present invention.

[0025] Figure 9 for Figure 7 A magnified view of a portion of point C.

[0026] Figure 10 for Figure 1 A magnified view of a portion of point A in the middle.

[0027] Figure 11 This is a partial three-dimensional schematic diagram of the discharge mechanism in one embodiment of the present invention.

[0028] In the diagram: 100, conveying channel; 110, turntable conveying section; 111, cell fixing position; 200. Spot welding mechanism; 210. Spot welding assembly; 211. Welding needle; 212. Welding needle drive cylinder; 213. Welding slag adsorption component; 300. Gasket assembly mechanism; 310. Double reel feeding assembly; 311. Gasket unloading tray; 312. Scrap material collection tray; 320. Punching assembly; 321. Punching needle; 322. Circular punching die; 323. Punching drive component; 324. Scrap material adsorption component; 330. Second correction assembly; 340. Battery cell clamping assembly; 350. Second clamping assembly; 400. Port forming mechanism; 410. Grooving assembly; 411. Lateral positioning component; 412. Pressing component; 413. First rotary motor; 414. Roller cutter; 415. Cam drive component; 416. Waste adsorption component; 420. Dispensing assembly; 421. Dispensing head; 422. Second rotary motor; 430. Third correction assembly; 440. Third clamping assembly; 500. Detection and sorting mechanism; 510. Through-hole detection assembly; 520. Pull-out force detection assembly; 530. Short circuit detection assembly; 540. Vision inspection assembly; 550. Sensor detection assembly; 560. First diversion assembly; 570. Second diversion assembly; 580. Third diversion assembly; 581. Defective product channel; 582. Defective product pusher cylinder; 600. Electrode welding flattening mechanism; 610. First correction component; 611. Rotating component; 612. Photoelectric sensing component; 620. Pre-welding component; 621. Clamping component; 622. Welding component; 630. First clamping flattening component; 700. Feeding mechanism; 710. Feeding push cylinder; 720. Feeding conveyor line; 730. Distributing cylinder; 800. Discharge mechanism; 810. Discharge push cylinder; 820. Discharge conveyor line; 830. Collection pipe port. Detailed Implementation

[0029] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0030] In the description of this invention, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 invention 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 invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] like Figure 1 As shown, a zinc ion battery cell tab welding and inspection equipment includes a conveying channel 100 for conveying battery cells; along the conveying direction of the conveying channel 100, a spot welding mechanism 200, a gasket assembly mechanism 300 and a port forming mechanism 400 are arranged in sequence. The bottom welding mechanism 200 is used for welding the lower electrode tab of the battery cell to the bottom of the casing; The gasket assembly mechanism 300 is used to punch insulating gaskets and assemble them into the cell housing; The port forming mechanism 400 includes: a grooving assembly 410 and a dispensing assembly 420, for port grooving and inner wall adhesive application; The zinc ion battery cell tab welding and inspection equipment also includes: a detection and sorting mechanism 500, used to detect and screen defective products during the processing.

[0033] This application provides a zinc-ion battery cell tab welding and inspection equipment, which is a highly integrated automated workstation specifically designed to complete a series of key processes for cylindrical lithium-ion battery cells after they are packaged. The core architecture of the equipment is based on at least one (preferably two parallel ones to increase production capacity) continuous conveyor channel 100. After the battery cell is fed from the inlet, it flows along the conveyor channel 100 sequentially through all stations, including tab processing, welding, multi-dimensional inspection, insulation component assembly, and shell preforming, and finally exits the line as a qualified semi-finished product. The various functional mechanisms are linearly arranged along the conveyor path and achieve precise timing coordination and data interaction through a unified control system, forming a smooth and continuous manufacturing unit.

[0034] like Figure 1 As shown, in some embodiments, the equipment includes two parallel conveying channels 100, which synchronously convey battery cells. Along the conveying direction of each conveying channel 100, various processing mechanisms are sequentially arranged, allowing the battery cells to be continuously and synchronously conveyed and processed on the two conveying channels 100. Specifically, along the battery cell conveying direction of the conveying channel 100, the equipment sequentially connects and arranges a feeding mechanism 700, a tab welding mechanism 600, a spot welding mechanism 200, a detection and sorting mechanism 500, a turntable conveyor section 110, a gasket assembly mechanism 300, a port forming mechanism 400, and a discharge mechanism 800. The conveying channel 100 is a linear conveying structure, with the middle section using a turntable conveying section 110 to achieve a smooth transition in the direction of battery cell conveying and continuous processing at multiple stations. It should be noted that multiple components of the detection and sorting mechanism 500 are distributed along the conveying path, thus running through each core processing step to form a closed-loop control of "processing-detection-sorting". The equipment is equipped with a PLC central control system, which achieves synchronous coordination of the actions of each mechanism through preset programs to ensure precise matching of processing cycle time.

[0035] Furthermore, the central control system integrates a human-machine interface, which can display the operating status of each mechanism, detection data, and defective product statistics in real time, facilitating operator monitoring and parameter adjustment. The inner wall of the conveyor channel 100 is coated with a wear-resistant coating to reduce frictional damage during cell transport, which is particularly suitable for processing cylindrical cells with softer outer shells. Guide transition structures are set at the connection points between each mechanism and the conveyor channel 100, such as multiple push cylinders on the side of the conveyor channel 100, to prevent the cells from jamming or shifting during process switching, ensuring smooth transport. In this embodiment, through an integrated layout design, the dispersed processing and inspection processes are integrated into the same equipment. Compared with traditional decentralized equipment, the footprint is reduced, the production process connection time is shortened, and production efficiency is significantly improved.

[0036] like Figure 1 and Figure 2 As shown, the equipment also includes a feeding mechanism 700 located at the beginning of the conveying channel 100. The feeding mechanism 700 includes a feeding push cylinder 710 and a feeding conveyor line 720. The feeding push cylinder 710 is used to push the battery cell into the feeding conveyor line 720.

[0037] The starting point of the equipment is the feeding mechanism 700, which typically connects to the incoming material from the previous process. This mechanism includes a feeding push cylinder 710 and a feeding conveyor line 720. The feeding push cylinder 710 is responsible for smoothly pushing the incoming battery cells into the feeding conveyor line 720 with a set force and posture, ensuring that the battery cells enter the main processing flow in a uniform direction and spacing. The feeding conveyor line 720 can be, but is not limited to, a belt conveyor, a chain conveyor, or a precision guide rail, providing initial conveying power and guidance for the battery cells.

[0038] like Figure 1 and Figure 2 As shown, in some embodiments, to improve efficiency, the device includes two or more parallel conveying channels 100 for synchronously conveying battery cells. Specifically, when a dual-channel parallel feeding design is adopted, the feeding mechanism 700 includes two sets of feeding push cylinders 710 and feeding conveyor lines 720. Each feeding push cylinder 710 has a feeding push block at its working end, and each feeding push block corresponds to the entrance of a feeding conveyor line 720. In addition, a distributing cylinder 730 is provided on the opposite side of the adjacent junction of the two sets of feeding conveyor lines 720. Specifically, the distributing cylinder 730 has a U-shaped distributing push block at its working end for alternately distributing the incoming material to the two independent and synchronous conveying channels 100. Furthermore, a silicone protective layer is pasted on the inner side of the feeding push block and the distributing push block to avoid scratching the battery cell shell during the pushing process, while improving the clamping stability during pushing and preventing the battery cell from shifting.

[0039] like Figure 3As shown, a tab welding mechanism 600 is also provided between the feeding conveyor line 720 and the spot welding mechanism 200; the tab welding mechanism 600 includes a first correction component 610, a pre-welding component 620 and a first clamping component 630 arranged sequentially along the conveying direction; the first correction component 610 includes a rotating component 611 and a photoelectric sensing component 612, the rotating component 611 and the photoelectric sensing component 612 are respectively arranged on both sides of the conveying channel 100, the pre-welding component 620 includes a clamping component 621 and a welding component 622, the clamping component 621 and the welding component 622 are respectively used to clamp and weld the tabs on the top of the battery cell, and the first clamping component 630 is used to clamp and flatten the welded tabs.

[0040] like Figure 3 As shown, in some embodiments, after the battery cell enters the main delivery channel 100, it first reaches the tab welding mechanism 600. This mechanism is responsible for the preliminary processing of the multi-layer tabs extending from the top of the battery cell, preparing it for subsequent bottom welding. Its workflow consists of three steps, completed sequentially by three sub-components. The specific processing procedure of the tab welding mechanism 600 is as follows: ① The first calibration component 610 operates first. It typically includes a rotating component 611 and a photoelectric sensing component 612. The rotating component 611 includes, but is not limited to, a friction wheel or gripper driven by a servo motor. A rubber anti-slip pad is provided on the upper surface of the rotating end to increase the friction between the battery cell and the rotating end, preventing the battery cell from sliding during positioning rotation. The photoelectric sensing component 612 includes, but is not limited to, an infrared photoelectric sensor. It identifies the position of the tab by detecting its edge contour, transmits the signal to the controller, and then drives the servo motor to rotate the rotating component 611, achieving precise positioning of the tab. The rotating component 611 and the photoelectric sensing component 612 are positioned opposite each other across the conveying channel 100. When the battery cell is conveyed to this station, the rotating component 611 drives the battery cell to rotate around its axis, while the photoelectric sensing component 612 scans the end face of the battery cell in real time. When the tab is detected to have rotated to a preset position that facilitates subsequent clamping and welding, the rotation immediately stops and locks, ensuring that the tabs of all battery cells are oriented in the same direction. This step eliminates the randomness of the incoming material's direction and is a prerequisite for achieving high-precision automated processing.

[0041] ② Subsequently, the pre-welding assembly 620 initially fixes the aligned tabs. This assembly includes a clamping component 621 and a welding component 622. The clamping component 621 consists of symmetrically arranged pneumatic grippers with flexible clamping surfaces on the inner side to stably limit the tabs on both sides, preventing them from shifting during welding. The welding component 622 uses a high-frequency induction welding head, which can flexibly adjust welding parameters according to the tab material to prevent overheating and deformation. The clamping component 621 clamps, gathers, and straightens the multi-layered tab pieces from both sides. Immediately afterwards, the welding component 622 performs spot welding on the ends of the tabs from both the front and rear sides, fusing the loose multi-layered tabs into a solid whole. It should be noted that this pre-welding process uses low energy, primarily to prevent the tabs from breaking or scattering during the subsequent, more intense main welding, thus providing a stabilizing effect.

[0042] ③ Finally, the first clamping assembly 630 flattens and shapes the pre-welded tabs. The first clamping assembly 630 includes symmetrically arranged flattening jaws and a drive cylinder, which, in conjunction with adjustable clamping pressure, achieves indentation-free flattening of the tabs. The heat from welding may cause slight warping of the tabs. This assembly uses a mold with a highly flat surface to apply uniform pressure to the welding area of ​​the tabs, making them flat and of uniform thickness. Flat tabs facilitate probe contact in subsequent processes and ensure a neat appearance of the final product.

[0043] The through-hole detection component 510 in the detection and sorting mechanism 500, which is located before the spot welding mechanism 200, is used to detect the unobstructedness of the center hole of the battery cell. like Figure 3 and Figure 4 As shown, in some embodiments, the device is equipped with a through-hole inspection component 510 for screening before tab bottom welding. After tab shaping is completed, the battery cell enters the through-hole inspection component 510. This component is located before the bottom welding mechanism 200, and its core function is to detect whether the central through-hole of the battery cell (usually an explosion-proof valve hole or a liquid injection hole) is unobstructed. The inspection is usually achieved using a non-contact fiber optic sensor or a contact probe in conjunction with a displacement sensor. For example, an optical fiber is aligned with the central hole from above the battery cell to detect whether there is a light signal passing through from below; or a thin probe is attempted to be inserted into the hole, and its travel is used to determine whether there is any obstruction. This inspection is crucial because the subsequent bottom welding requires the welding needle 211 to accurately pass through this hole to reach the welding surface. If the hole is blocked (e.g., due to tab material residue, foreign objects, or manufacturing defects), the welding needle 211 will not function properly, leading to welding failure, and may even damage the internal structure of the battery cell. Therefore, through-hole inspection is the first quality gate to prevent ineffective processing and potential internal short circuit risks. The battery cells that fail the test will be recorded and marked by the control system and will skip the subsequent spot welding and pull-out force test processes. When they pass through the first shunt component 560, they will enter the corresponding defective product channel 581.

[0044] The spot welding mechanism 200 includes two identical and parallel spot welding components 210. Each spot welding component 210 includes a welding needle 211, a welding needle drive cylinder 212, and a slag adsorption component 213. The welding needle drive cylinder 212 is used to drive the lifting and lowering of the welding needle 211. The slag adsorption component 213 is arranged adjacent to the welding needle 211. The two spot welding components 210 are configured to operate alternately.

[0045] like Figure 3 and Figure 4 As shown, in some embodiments, qualified battery cells that pass through the through-hole inspection are transported to the spot welding mechanism 200. This mechanism solves the problem of frequent downtime for maintenance due to the easy wear and tear of the welding needle 211 during the welding process by employing two identical and physically parallel spot welding assemblies 210. To facilitate the use of the spot welding mechanism 200, each spot welding assembly 210 is a complete welding unit, independently including: a high-temperature resistant welding needle 211, a welding needle drive cylinder 212 for precisely raising and lowering the welding needle 211, and a slag adsorption component 213 located beside the welding needle 211. The two assemblies operate alternately in a "one in use, one on standby" mode under the management of the control system. Specifically, the welding needle 211 is, but is not limited to, made of tungsten-copper alloy, which has excellent conductivity and wear resistance, extending the service life of the welding needle 211 and reducing the frequency of maintenance; the welding needle drive cylinder 212 is a servo electric cylinder with high-precision lifting control capability, ensuring accurate docking of the welding needle 211 with the welding point of the battery cell. The slag adsorption component 213 is a vacuum nozzle connected to a vacuum generator via a pipe. The nozzle port faces the welding area of ​​the welding needle 211, allowing for real-time adsorption of welding slag generated during the welding process, preventing slag residue from remaining inside the battery cell and affecting subsequent assembly or cell performance. Furthermore, while the welding needle 211 of the first assembly completes a full cycle of descent, welding, and ascent, the second assembly is in standby mode. Operators can take this opportunity to perform necessary grinding, cleaning, or replacement of the welding needle 211 in standby mode without interrupting the entire production line. When the welding needle 211 of the first assembly reaches the preset number of welding passes or the monitoring system indicates a decline in its condition, the control system automatically switches to the second assembly to perform the welding task, while the first assembly enters the maintenance window. This cycle enables continuous, uninterrupted spot welding operations, significantly improving the overall utilization rate of the equipment.

[0046] It should be noted that the working process of a single spot welding assembly 210 is as follows: During operation, the selected welding needle 211, driven by the welding needle drive cylinder 212, precisely passes through the verified unobstructed center hole of the battery cell until it contacts the negative electrode tab inside the battery cell. Simultaneously, a lower electrode is located at the corresponding position on the bottom of the battery cell casing. After energization, under the combined action of pressure and current, the welding needle 211 firmly welds the internal negative electrode tab to the bottom of the casing, achieving electrical connection and mechanical fixation between the battery cell and the casing. The synchronously activated slag adsorption component 213 immediately absorbs the metal vapor, spatter, and fumes generated during welding, keeping the welding area clean and preventing slag from contaminating the inside of the battery cell or affecting sensor operation.

[0047] The pull-out force detection component 520, which is located after the spot welding mechanism 200 in the detection and sorting mechanism 500, is used to test the welding strength. like Figure 5 As shown, in some embodiments, the device is equipped with a pull-out force testing component for verifying the quality of the spot welding. After the spot welding is completed, the battery cell immediately enters the pull-out force testing component 520 to quantitatively verify the weld quality. The pull-out force testing component 520 includes a tension sensor, a tab clamp for holding the tab, and a battery cell housing clamp. The battery cell housing clamp is used to fix the battery cell housing, the tab clamp is used to hold the tab on the top of the battery cell and pull it out at a uniform speed along the axial direction, and the tension sensor is used to collect pull-out force data in real time. The tab clamp adopts a flexible clamping structure to avoid damage to the tab during the pull-out process. Specifically, during the test, the tab clamp holds the tab, and the drive unit applies a continuous and uniformly increasing axial tension. The tension sensor records the force value change in real time throughout the entire stretching process. The control system analyzes the force-displacement curve. If the weld does not fall off when the tension reaches the set value, or if the tension value when the weld falls off is higher than the minimum standard, the welding strength is judged to be qualified; otherwise, it is unqualified. It should be noted that the control system can adjust the force of the tab clamp and the cell casing clamp, and continuously monitors the pressure feedback at the clamping point during the process. If abnormal fluctuations in clamping force occur due to individual cell differences or changes in the surface condition of the tab, the system can perform real-time dynamic fine-tuning to maintain a stable clamping state. Furthermore, all adjustment processes and final clamping force data are recorded and linked to the cell's production data package for process traceability and quality analysis. This adjustable intelligent clamping design significantly improves the reliability and repeatability of test results and enhances adaptability to products of different specifications. Pull-out force testing is a direct means of verifying welding reliability and can effectively screen out defective products such as incomplete or weak welds. Cells that fail the test are recorded and marked by the control system.

[0048] like Figure 1 and Figure 3As shown, the detection and sorting mechanism 500 includes a first diversion component 560, a second diversion component 570, and a third diversion component 580 arranged sequentially along the conveying path of the conveying channel 100. Each of the first diversion component 560, second diversion component 570, and third diversion component 580 in the detection and sorting mechanism 500 includes a defective product channel 581 and a defective product pusher cylinder 582 (in the attached drawings, only the first diversion component 560 is used as an example; the defective product channel 581 and the defective product pusher cylinder 582 are...). Figure 3 (Note: In the second diversion assembly 570 and the third diversion assembly 580, the markings for the defective product channel 581 and the defective product pusher cylinder 582 have been omitted.) The first diversion component 560 in the detection and sorting mechanism 500 is located after the pull-out force detection component 520; like Figure 1 and Figure 3 As shown, in some embodiments, after the pull-out force detection component 520, the equipment is equipped with a first diversion component 560 to perform the first centralized sorting. This component has an independent sorting unit for each conveying channel 100. The core of each sorting unit includes a defective product channel 581 that is parallel to or at a certain angle to the main conveying channel 100 and connected to it, and a defective product pusher cylinder 582 that is set on the side of the main conveying channel 100 and aligned with the entrance of the defective product channel 581. The sorting logic of the control system is: combining the detection results of the previous through-hole detection component 510 and pull-out force detection component 520, the defective product pusher cylinder 582 is driven to push the defective product into the corresponding defective product channel 581. For any cell that fails any test (i.e. is marked as defective), even if it has not undergone actual processing in subsequent stations (e.g., cells with unqualified through holes skip the spot welding process and the pull-out force test process), it will be allowed to continue to "run empty" forward along the main conveying channel 100. Specifically, in some embodiments, when a defective battery cell reaches the position of the first shunt assembly 560, the defective product pusher 582 on the side quickly activates upon receiving a control signal, identifies the type of defective product, and pushes it laterally away from the main conveyor channel 100, allowing it to enter the corresponding defective product channel 581 for collection or removal. Meanwhile, good battery cells that pass both tests are unaffected by the pusher and continue moving along the main conveyor channel 100 to the next processing stage—the turntable conveyor section 110.

[0049] The conveying channel 100 includes a turntable conveying section 110 that connects to the good product outlet of the first diversion component 560; the turntable conveying section 110 has a ring structure and is provided with multiple cell fixing positions 111. Along the annular conveying direction of the turntable conveying section 110, a second correction component 330, a cell pressing component 340, and a second clamping component 350 are sequentially arranged on the outer side of the turntable conveying section 110. The second correction component 330, the cell pressing component 340, and the second clamping component 350 are respectively used to perform secondary positioning calibration of the cell tabs, press the cell body and the outer shell tightly together, and clamp and flatten the tabs again. The gasket assembly mechanism 300 is located after the cell pressing assembly 340 along the annular conveying direction, and the good product outlet of the turntable conveying section 110 is connected to the port forming mechanism 400.

[0050] In the detection and sorting mechanism 500, the short circuit detection component 530 is located before the gasket assembly mechanism 300, and is further located before the cell pressing component 340 and after the second correction component 330. The sensing and detection component 550 in the detection and sorting mechanism 500 is located after the gasket assembly mechanism 300, and further located after the second clamping component 350; like Figure 5 As shown, this equipment is equipped with a turntable conveyor section 110, which is a ring structure with multiple semi-enclosed cell fixing positions 111 (such as U-shaped brackets) spaced circumferentially along its upper edge. These positions serve as a buffer, temporary storage, and secondary processing platform. In some embodiments, the turntable conveyor section 110 includes a turntable body, a turntable drive motor, and multiple cell fixing positions 111. The turntable body is made of lightweight, high-rigidity aluminum alloy, reducing drive energy consumption while ensuring rotational stability. The turntable drive motor is a stepper motor, driving the turntable body to rotate at a uniform speed. The rotation speed can be adjusted by a central control system to adapt to different processing cycle requirements. The cell fixing positions 111 are semi-enclosed concave structures, with the interior conforming to the shape of the cylindrical cell. Silicone anti-slip pads are attached to the inner wall, effectively preventing circumferential or radial displacement of the cell during turntable rotation, ensuring positioning accuracy for each processing step. After a cell is placed in a cell fixing position 111, it rotates intermittently with the turntable in a step-like manner. During the rotation, the battery cell passes through multiple stations arranged on the outside of the turntable in sequence. The specific processing steps when passing through these stations are as follows: like Figure 5 As shown, the battery cell first passes through the second correction component 330 on the turntable conveyor section 110. The structure of the second correction component 330 is basically the same as that of the first correction component 610. It achieves secondary positioning of the electrode tab through photoelectric sensing and servo rotation linkage, which can correct the electrode tab position offset caused by the battery cell after the previous processing and conveying, and ensure that the electrode tab can accurately pass through the spacer clearance hole when the spacer is assembled. The secondary positioning and calibration of the electrode tab position corrects the small angular deviation that may occur after the battery cell is conveyed over a long distance.

[0051] like Figure 5As shown, the battery cell passes through the short-circuit detection component 530 in the second step on the turntable conveyor section 110. This short-circuit detection component 530, located in the detection and sorting mechanism 500 before the pad assembly mechanism 300 and before the battery cell pressing component 340, is used to test the insulation performance between the battery cell casing and the electrode tab; this component is an important electrical safety testing station. Its test probes contact the metal casing of the battery cell (which at this time corresponds to the negative terminal of the battery) and the positive electrode tab on top, respectively, to measure the insulation resistance between them. If the resistance value is lower than the safety threshold, it indicates an external short-circuit risk, and the battery cell will be marked by the control system. Based on the result of the short-circuit detection component 530, the control system controls the second shunt component 570 to remove the unqualified battery cells. Qualified cells are then conveyed to the pad assembly mechanism 300.

[0052] like Figure 5 As shown, the battery cell passes through the battery cell clamping assembly 340 in the third step on the turntable conveyor section 110. The battery cell clamping assembly 340 includes a pneumatic pressure head and a positioning reference block. The pneumatic pressure head is positioned above the battery cell, and the positioning reference block is positioned below the battery cell. The two work together to apply axial pressure from the top of the battery cell, ensuring that the internal core and the bottom of the outer shell are tightly fitted, eliminating potential gaps. This step provides a stable internal space for the subsequent precise assembly of the insulating gasket and is a key prerequisite.

[0053] like Figure 5 As shown, the battery cell passes through the gasket assembly mechanism 300 in the fourth step on the turntable conveyor section 110. The gasket assembly mechanism 300 includes a double reel feeding assembly 310 and a punching assembly 320. The double reel feeding assembly 310 includes a gasket unloading tray 311 and a waste recycling tray 312. The gasket unloading tray 311 and the waste recycling tray 312 are connected by gasket rolls. The punching assembly 320 includes a punching needle 321, a circular punching die 322 and a punching drive 323. The punching needle 321 and the circular punching die 322 are arranged adjacent to each other and are both driven by the punching drive 323. A waste adsorption component 324 is also provided on the side of the punching assembly 320.

[0054] This equipment is equipped with a gasket assembly mechanism 300 to automate the entire process of insulating gaskets from raw materials to final assembly. Its dual-reel feeding assembly 310 includes a gasket unloading reel 311 and a waste material collection reel 312, which are connected by gasket rolls to form a continuous feeding system. The rolls are drawn to the bottom of the punching assembly 320. For example... Figure 5 and Figure 6As shown, in some embodiments, to facilitate the use of the equipment, both the gasket feeding tray 311 and the waste recycling tray 312 of the dual-reel feeding assembly 310 are equipped with tension adjustment components. A damper structure is used to stabilize the tension of the coil conveying, avoiding the stretching deformation of the coil from affecting the gasket forming accuracy. The gasket coil is made of high-temperature resistant insulating material to ensure the insulation reliability of the battery cell during subsequent use. The stamping needle 321 is used to stamp small features such as positioning holes or tab clearance holes on the gasket, and the circular blanking die 322 is used to blank out the circular shape of the gasket and cut it apart. The two are arranged sequentially along the coil conveying direction to realize the step-by-step forming of the gasket. The dimensions of the stamping needle 321 and the circular blanking die 322 are precisely matched with the gasket design dimensions to ensure that the blanked gasket can perfectly match the battery cell shell and tabs. The blanking drive 323 is a pneumatic cylinder, and the stamping frequency is precisely matched with the rotation speed of the turntable conveying section 110 to ensure that the gasket assembly and battery cell conveying are synchronized. The waste adsorption component 324 is a vacuum suction tube connected to the vacuum system via a pipe. Throughout the punching process, the waste adsorption component 324 works continuously to remove the waste generated during punching, preventing waste residue from remaining in the punching area and affecting subsequent punching accuracy, while also preventing waste from falling onto the surface of the battery cell and causing contamination. After punching, the circular insulating pad is accurately dropped onto the battery cell above the turntable conveyor section 110 via the material guide groove. The clearance hole on the pad fits through the electrode tab, completing the pad assembly.

[0055] like Figure 5 As shown, the battery cell passes through the second clamping assembly 350 (or tab pre-shaping assembly) in the fifth step on the turntable conveyor section 110: the structure of the second clamping assembly 350 is adapted to the first clamping assembly 630, and the flatness of the tab is further improved through secondary clamping, providing a good assembly foundation for the subsequent port forming process.

[0056] In the above embodiments, the annular layout of the turntable conveyor section 110 allows for simultaneous processing at multiple workstations, significantly shortening the process connection time and increasing the output per unit time. The tabs undergo secondary pre-shaping to ensure they are straight and centered, preparing them for subsequent assembly and appearance.

[0057] like Figure 5 As shown, the battery cell passes through the sensing detection component 550 in the sixth step on the turntable conveyor section 110. The sensing detection component 550, located in the detection and sorting mechanism 500 after the gasket assembly mechanism 300 and after the second clamping assembly 350, is used to detect the presence or absence of insulating gaskets. Specifically, in some embodiments, the sensing detection component 550 uses a micro-sensor to detect the presence of the gasket, thereby confirming that the insulating gasket has been correctly assembled, and the control system simultaneously records relevant information. Based on the result from the sensing detection component 550, the control system controls the second shunt assembly 570 to remove unqualified battery cells. Qualified cells are then conveyed to the port forming mechanism 400.

[0058] like Figure 5 As shown, the second diversion component 570 in the detection and sorting mechanism 500 is located after the sensing and detection component 550; In some embodiments, when the battery cell reaches the position of the second shunt assembly 570, the system retrieves the detection records of the short-circuit detection assembly 530 and the induction detection assembly 550. Upon receiving the control signal, the defective product pusher 582 on the side quickly acts to identify the type of defective product and pushes it laterally away from the main conveyor channel 100, allowing it to enter the defective product channel 581 corresponding to the defective product type, where it is collected or removed. Good battery cells that pass both tests are unaffected by the pusher and continue to advance along the main conveyor channel 100, entering the next processing stage—the port forming mechanism 400.

[0059] like Figure 7 As shown, the grooving assembly 410 of the port forming mechanism 400 includes a lateral positioning component 411, an upper pressing component 412, a first rotary motor 413, a roller cutter 414, and a cam drive component 415. The lateral positioning component 411 is disposed on the side of the conveying path, the upper pressing component 412 is disposed above the conveying path, the first rotary motor 413 is disposed below the conveying path, and the cam drive component 415 is used to drive the roller cutter 414 to push the battery cell housing. The grooving assembly 410 is also provided with a waste adsorption component 416. The dispensing assembly 420 includes a dispensing head 421 and a second rotary motor 422. The second rotary motor 422 is used to drive the battery cell to rotate and cooperate with the dispensing head 421 to apply sealant to the inner wall of the battery cell port.

[0060] The battery cell with the insulating gasket assembled then enters the port forming mechanism 400 for machining and sealing preparation of the housing. This process is divided into two steps, sequentially completed by the grooving assembly 410 and the dispensing assembly 420. In some embodiments, the specific process is as follows: like Figure 7 and Figure 8As shown, the grooving assembly 410 is responsible for rolling an annular groove (pre-rolled edge) at the outer casing port for subsequent installation of the battery top cover and sealing ring. Specifically, firstly, the lateral positioning component 411 is a dual-bearing positioning structure, which clamps and limits the side of the battery cell through two parallel deep groove ball bearings to form radial positioning. The deep groove ball bearings rotate flexibly, which can reduce the frictional resistance when the battery cell rotates. At the same time, the pressing component 412 is a telescopic pressing knife, which is driven by a pneumatic cylinder to extend downward and press against the top of the battery cell to form axial positioning. The pressing stroke can be flexibly adjusted according to the height of the battery cell to adapt to the processing requirements of battery cells of different specifications. Next, the first rotary motor 413, located below the battery cell, is started. The first rotary motor 413 is connected to the lateral positioning component 411, and under the combined action of radial and axial positioning, drives the battery cell to rotate uniformly around its axis. Simultaneously, the cam drive component 415, including a motor and a cam, drives the cam to rotate. The hob 414, located at the working end of the cam drive component 415, is precisely controlled by the cam drive component 415 to radially push against the rotating battery cell housing with a set stroke and pressure, feeding radially towards the port of the rotating battery cell housing with constant pressure and a set stroke. With each rotation of the electric spiral, the hob 414 rolls a uniform annular groove of depth and width at the port. Throughout the rolling process, the waste adsorption component 416, a vacuum suction tube located next to the grooving assembly 410, is directed towards the grooving area to remove metal waste generated during grooving in real time, preventing waste residue from remaining in the annular groove and affecting subsequent cap assembly, thus maintaining a clean processing environment.

[0061] like Figure 9 and Figure 10 As shown, after the grooving is completed, the battery cell is transferred to the dispensing assembly 420, which includes a metering dispensing head 421 and a second rotary motor 422. The second rotary motor 422 of the dispensing assembly 420 is connected to the positioning structure at the bottom of the battery cell, driving the battery cell to rotate at a constant speed. The dispensing head 421 is fixed above the battery cell by a bracket, maintaining an appropriate distance from the inner wall of the battery cell port. The dispensing head 421 is connected to the adhesive supply system and uses a needle-type dispensing nozzle, which can precisely control the amount of adhesive output. In conjunction with the rotation of the battery cell, it achieves uniform coating of annular sealant on the inner wall of the battery cell shell, providing a reliable sealing foundation for the subsequent capping process. The adhesive used is high-temperature resistant epoxy sealant to ensure the sealing performance of the battery cell during long-term use.

[0062] like Figure 9 and Figure 10As shown, to facilitate the use of the equipment, in some embodiments, a third correction component 430 and a third clamping component 440 are provided after the dispensing component 420 and before the vision inspection component 540. These two components are arranged sequentially along the conveying direction to collaboratively achieve the final precise positioning calibration and flatness optimization of the battery cell tabs after dispensing, ensuring the accuracy of subsequent vision inspection and the consistency of finished tab assembly. Specifically, the third correction component 430 includes a laser positioning sensor and symmetrical correction grippers. The laser positioning sensor is fixed above the conveying channel 100 and can accurately identify the tab position shift caused by battery cell rotation and conveying vibration after the dispensing process, and transmit the shift signal to the central control system in real time. The correction grippers are connected to a servo drive module, and the control system drives the correction grippers to perform micro-clamping correction on the tabs according to the shift signal, so that the tabs return to the preset standard positioning position. The third clamping assembly 440 includes flexible clamping blocks arranged symmetrically on the left and right and a pneumatic drive component. A high-temperature resistant silicone pad is attached to the inner side of the flexible clamping block. The pneumatic drive component drives the clamping block to flexibly clamp the electrode tabs vertically, correcting the slight bending or warping deformation of the electrode tabs caused by previous processing or transportation.

[0063] like Figure 10 As shown, the vision inspection component 540 in the inspection and sorting mechanism 500 is located after the dispensing component 420 and is used to perform final inspection on the battery cell. like Figure 10 As shown, the third diversion component 580 in the detection and sorting mechanism 500 is located after the vision detection component 540.

[0064] In some embodiments, the vision inspection component 540 is used to perform a comprehensive visual inspection of the battery cell. Specifically, the vision inspection component 540 includes an industrial camera, a ring light source, and an image analysis system. The ring light source provides uniform illumination, the industrial camera acquires images of the battery cell's appearance from multiple angles, and the image analysis system compares the acquired images with preset standard images to comprehensively inspect indicators such as tab position, gasket assembly accuracy, port groove size, and glue dispensing uniformity, achieving final control over the quality of the finished product. This includes checks on tab condition, port groove quality, glue path integrity, and surface scratches.

[0065] Following this is the third diversion component 580, which, based on the final visual inspection results, pushes the very few defective products that do not meet the appearance standards into the defective channel via the defective pusher cylinder for final rejection. Finally, all qualified good battery cells that have passed all inspections are sent out by the discharge mechanism 800.

[0066] like Figure 1 , Figure 3 , Figure 5 and Figure 7As shown, in the detection and sorting mechanism 500, the first diversion component 560 and the second diversion component 570 are each independently equipped with two sets of defective product channels 581 and defective product pusher cylinders 582; the third diversion component 580 is equipped with one set of defective product channels 581 and defective product pusher cylinders 582; each set of defective product channels 581 and defective product pusher cylinders 582 are located on the side of the conveying channel 100, and the defective product pusher cylinders 582 are correspondingly arranged with the defective product channels 581 (in the attached drawings of the specification, only the first diversion component 560 is used as an example, the defective product channels 581 and defective product pusher cylinders 582 are located on the side of the conveying channel 100, and the defective product pusher cylinders 582 are arranged with the defective product channels 581 and defective product pusher cylinders 582). Figure 3 (Note: The markings for defective product channel 581 and defective product pusher cylinder 582 in the second diversion component 570 and the third diversion component 580 have been omitted.)

[0067] It should be noted that, in some embodiments, the number of defective product channels 581 and defective product pusher cylinders 582 configured in the diversion component of the device of this application is related to the number of types of detection components directly upstream. Specifically, the number of sets of defective product channels 581 and defective product pusher cylinders 582 set in the diversion component is the same as the number of types of detection components directly upstream; the diversion component is used to achieve refined classification and management of defective products. For example, at the position of the first diversion component 560, there are two independent detection units upstream: a through-hole detection component 510 and a pull-out force detection component 520. Therefore, the first diversion component 560 is correspondingly provided with two sets of independent defective product channels 581 and corresponding defective product pusher cylinders 582. The control system can make decisions based on the detection results of the battery cell in the two detection units: if the detection result record is marked as "through-hole defective", when the battery cell is transported to the first diversion component 560, the control system will trigger the action of the set of defective product pusher cylinders 582 corresponding to the "through-hole defective" classification, and accurately push it into the paired defective product channel 581. Similarly, if a file is marked as "poor welding strength," it triggers another set of corresponding push cylinders and channels for rejection. In this way, defective products of different types are physically separated as soon as they leave the production line, greatly facilitating subsequent rework, analysis, or scrapping, and achieving physical visualization of quality data and lean process management. All qualified products are unaffected and continue on their way. Furthermore, similarly, the second diversion component 570 is equipped with two independent defective product channels 581 and corresponding defective product pusher cylinders 582. This is also to refine the detection results of the short circuit detection component 530 and the induction detection component 550 directly upstream. Specifically, if the detection result is marked as "insulation failure", the defective pusher cylinder of the "insulation failure" group will be driven to push the defective product into the defective product channel 581 corresponding to the short circuit detection. If it is "gasket missing defect", the defective pusher cylinder of the "gasket missing defect" group will be driven to push the defective product into the defective product channel 581 corresponding to the induction detection. Good products continue to rotate with the turntable to the port forming mechanism 400. Since the third diversion component 580 only has one detection process at the front end, the visual inspection component 540, it is only equipped with one defective product channel 581 and corresponding defective product pusher cylinder 582 to collect all finished defective products that fail the visual inspection. In other embodiments, new detection components need to be added directly upstream of each diversion component, and the number of defective product channels 581 and defective product push cylinders 582 corresponding to the downstream diversion components will also increase; the related system control and the classification of the corresponding detection results are theoretically the same as those of the first diversion component 560, the second diversion component 570 and the third diversion component 580, and will not be repeated here.

[0068] like Figure 1 and Figure 11As shown, the equipment also includes a discharge mechanism 800 located at the end of the conveying channel 100; the discharge mechanism 800 includes a discharge push cylinder 810 and a discharge conveying line 820, and the discharge push cylinder 810 is used to push the battery cell into the discharge conveying line 820.

[0069] The end of the equipment is the feeding mechanism 700, and the discharging mechanism 800 typically includes a discharging push cylinder 810 and a discharging conveyor line 820. The discharging push cylinder 810 pushes the battery cell from the final station onto the discharging conveyor line 820, which then smoothly and orderly transports the battery cell to the equipment interface or collection tray of the next process, completing the entire processing flow within this equipment. The discharging conveyor line 820 can be, but is not limited to, a belt conveyor, a chain conveyor, or a precision guide rail, providing the final conveying power and guidance for the battery cell.

[0070] like Figure 11 As shown, in some embodiments, to improve efficiency, the conveying channel 100 can adopt a dual-channel parallel discharge design. In this case, the discharge mechanism 800 includes two branch discharge conveying lines 820 and a collecting pipe port 830. The two branch discharge conveying lines 820 are respectively connected to the discharge ends of the two conveying channels 100. The collecting pipe port 830 is connected to the ends of the two branch discharge conveying lines 820 and is used to collect qualified battery cells and transport them to the same subsequent equipment interface.

[0071] In some embodiments, the fully automated workflow of this device is as follows: After the battery cell is directionally pushed to the conveyor channel 100 by the feeding mechanism 700, it is first rotated, pre-welded, and flattened by the tab welding mechanism 600. Subsequently, the through-hole inspection component 510 screens the patency of the center hole of the battery cell. Qualified cells enter the bottom welding mechanism 200. This mechanism employs a dual-station alternating operation, with one welding unit performing the welding of the tab to the bottom of the casing, while the other unit performs maintenance on the welding needle 211. Welding fumes are simultaneously cleaned by an adsorption component. Immediately after welding, a pull-out force test is performed to verify strength, and the test results, along with the through-hole inspection data, are recorded by the control system. Next, the first diversion component 560, based on the above test results, pushes battery cells with poor through-hole quality or poor welding strength into two independent defective product channels 581 for classification and rejection. Qualified cells enter the turntable conveyor section 110, where, during rotation, they sequentially undergo secondary tab correction, short-circuit testing, battery cell pressing, gasket assembly, and tab pre-shaping. In the gasket assembly mechanism 300, the insulating gasket is automatically inserted into the cell housing after online punching. Following a second clamping of the cell tabs, the presence or absence of the gasket is detected by induction. Cells failing either the insulation or induction tests are rejected at the turntable exit by the second diverter assembly 570. Next, in the port forming mechanism 400, the cell housing port is first rolled and formed by the grooving assembly 410, and then a ring of sealant is applied by the dispensing assembly 420. Finally, cells passing visual inspection are output by the unloading mechanism 800, while defective cells are rejected by the third diverter assembly 580. Good cells are conveyed to the next processing equipment via the unloading conveyor mechanism, completing the entire processing flow. The entire process is controlled by a central control system, achieving continuous, closed-loop automated production.

[0072] The zinc ion battery cell tab welding and inspection equipment in this application can achieve the following: (1) By integrating key processes such as tab welding, spot welding, multi-channel online inspection, insulating pad assembly and port forming into a continuous automated production line, and adopting a dual-channel parallel layout, it helps to optimize the production cycle, reduce material turnover and waiting time between processes, thereby supporting high production efficiency and capacity output in a compact space.

[0073] (2) The equipment incorporates online detection nodes for multiple dimensions such as through holes, welding strength, and insulation resistance in the processing flow, and works in conjunction with the subsequent defective product diversion mechanism to form a quality closed loop. The diversion component can guide various defective products to independent physical channels for separation based on different upstream detection results. This design helps to intercept defective products in real time during the production process and classify and manage them, providing convenience for quality traceability and analysis.

[0074] (3) The dual-station alternating operation design adopted by the spot welding mechanism 200 allows one spot welding component 210 to perform welding while the other spot welding component 210 performs welding, which helps to reduce the downtime of the whole machine caused by routine process maintenance. At the same time, the whole machine coordinates the operation of each mechanism and data acquisition through a unified control system, which helps to ensure process stability and support the monitoring and continuous operation of the production process.

[0075] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A zinc ion battery cell tab welding and inspection equipment, characterized in that: It includes a conveying channel for conveying battery cells; along the conveying direction of the conveying channel, a spot welding mechanism, a gasket assembly mechanism, and a port forming mechanism are sequentially arranged. The bottom welding mechanism is used for welding the lower electrode tab of the battery cell to the bottom of the casing; The gasket assembly mechanism is used to punch out insulating gaskets and assemble them into the battery cell housing. The port forming mechanism includes: a grooving assembly and a dispensing assembly, used for port grooving and inner wall adhesive application; The zinc ion battery cell tab welding and inspection equipment also includes a detection and sorting mechanism for detecting and screening defective products during the processing.

2. The zinc ion battery cell tab welding and inspection equipment according to claim 1, characterized in that: The spot welding mechanism includes two identical spot welding components arranged in parallel. Each spot welding component includes a welding needle, a welding needle drive cylinder, and a slag adsorption component. The welding needle drive cylinder is used to drive the welding needle to rise and fall. The slag adsorption component is arranged adjacent to the welding needle. The two spot welding components are configured to operate alternately.

3. The zinc ion battery cell tab welding and inspection equipment according to claim 1, characterized in that: The gasket assembly mechanism includes a double-reel feeding assembly and a blanking assembly. The double-reel feeding assembly includes a gasket unloading tray and a waste recycling tray, which are connected by gasket rolls. The blanking assembly includes a stamping needle, a circular blanking die, and a blanking drive. The stamping needle and the circular blanking die are arranged adjacent to each other and are both driven by the blanking drive. A waste adsorption component is also provided on the side of the blanking assembly.

4. The zinc ion battery cell tab welding and inspection equipment according to claim 1, characterized in that: The grooving assembly of the port forming mechanism includes a lateral positioning component, an upper pressing component, a first rotary motor, a roller cutter, and a cam drive component. The lateral positioning component is located on the side of the conveying path, the upper pressing component is located above the conveying path, the first rotary motor is located below the conveying path, and the cam drive component is used to drive the roller cutter to push the battery cell housing. The grooving assembly also includes a waste adsorption component. The dispensing assembly includes a dispensing head and a second rotary motor. The second rotary motor is used to drive the battery cell to rotate and cooperate with the dispensing head to apply sealant to the inner wall of the battery cell port.

5. The zinc ion battery cell tab welding and inspection equipment according to claim 4, characterized in that: The detection and sorting mechanism specifically includes: The through-hole detection component, located before the spot welding mechanism, is used to detect the patency of the center hole of the battery cell. A pull-out force detection component is installed after the spot welding mechanism to test the welding strength. A short-circuit detection component, located before the gasket assembly mechanism, is used to test the insulation performance between the cell casing and the electrode tab. The sensing and detection component, located after the gasket assembly mechanism, is used to detect the presence or absence of the insulating gasket. A vision inspection component, located after the dispensing assembly, is used for the final inspection of the battery cell. And, a first diversion component, a second diversion component, and a third diversion component are sequentially arranged along the conveying path of the conveying channel; The first diversion component is disposed after the pull-out force detection component; the second diversion component is disposed after the sensing detection component; and the third diversion component is disposed after the vision detection component.

6. The zinc ion battery cell tab welding and inspection equipment according to claim 5, characterized in that: The first diversion component, the second diversion component, and the third diversion component all include a defective product channel and a defective product pusher cylinder; The first diversion component and the second diversion component are each independently provided with two sets of defective product channels and defective product push cylinders; the third diversion component is provided with one set of defective product channels and defective product push cylinders; each set of defective product channels and defective product push cylinders are located on the side of the conveying channel, and the defective product push cylinders are correspondingly provided with the defective product channels.

7. The zinc ion battery cell tab welding and inspection equipment according to claim 1, characterized in that: It also includes a feeding mechanism located at the beginning of the conveying channel. The feeding mechanism includes a feeding push cylinder and a feeding conveyor line. The feeding push cylinder is used to push the battery cell into the feeding conveyor line.

8. The zinc ion battery cell tab welding and inspection equipment according to claim 7, characterized in that: A tab welding mechanism is also provided between the feeding conveyor line and the bottom welding mechanism; the tab welding mechanism includes a first correction component, a pre-welding component and a first clamping component arranged sequentially along the conveying direction; the first correction component includes a rotating component and a photoelectric sensing component, the rotating component and the photoelectric sensing component are respectively arranged on both sides of the conveying channel, the pre-welding component includes a clamping component and a welding component, the clamping component and the welding component are respectively used to clamp and weld the tabs on the top of the battery cell, and the first clamping component is used to clamp and flatten the welded tabs.

9. The zinc ion battery cell tab welding and inspection equipment according to claim 6, characterized in that: The conveying channel includes a turntable conveying section that connects to the good product outlet of the first diversion component; the turntable conveying section is a ring structure with multiple cell fixing positions on it; Along the annular conveying direction of the turntable conveying section, a second correction component, a cell pressing component, and a second clamping component are sequentially arranged on the outer side of the turntable conveying section. The second correction component, the cell pressing component, and the second clamping component are respectively used to perform secondary positioning calibration of the cell tabs, press the cell body and the outer shell tightly together, and clamp and flatten the tabs again. The gasket assembly mechanism is located after the cell pressing assembly along the annular conveying direction, and the good product outlet of the turntable conveying section is connected to the port forming mechanism.

10. The zinc ion battery cell tab welding and inspection equipment according to claim 1, characterized in that: It also includes a discharge mechanism located at the end of the conveying channel; the discharge mechanism includes a discharge pushing cylinder and a discharge conveying line, the discharge pushing cylinder being used to push the battery cell into the discharge conveying line.

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