Automatic feeding and discharging equipment for battery cells and burn-in boards

Abstract

The invention discloses automatic battery cell and burn-in board feeding and discharging equipment, and relates to the technical field of battery production. The shaping rotary tables are symmetrically and respectively driven to keep circumferential rotation, and the tab shaping mechanism is used for carrying out pressing and traction shaping on tabs of a plurality of battery cells on the shaping rotary tables one by one by simulating manual actions; the burn-in board feeding and discharging mechanisms are symmetrically distributed about the center of the battery cell transfer table and are used for conveying burn-in boards in the x-axis direction; the battery cell carrying robot comprises a four-axis robot, a first lifting air cylinder is fixedly installed at the output end of the four-axis robot, a first sponge suction cup is fixedly installed at the output end of the first lifting air cylinder, and the battery cell carrying robot is used for placing battery cells on the shaping rotary disc; and the battery cell NG box is used for bearing the battery cells delivered by the battery cell carrying robot. According to the invention, automatic processing of the battery cell and the burn-in board is realized.

Description

Technical Field

[0001] This invention relates to the field of battery production technology, specifically to an automatic loading and unloading equipment for battery cells and aging plates. Background Technology

[0002] In the manufacturing process of pouch lithium batteries, the cell formation and testing processes play a decisive role in the final performance and consistency of the battery. As battery manufacturers continue to demand higher space utilization and faster production cycles, vertical clamping machines for pouch cells have gradually become the mainstream production equipment due to their significant advantages in space efficiency, pressure uniformity, and ease of changeover.

[0003] However, the aging plates of mainstream vertical clamping machines currently use a drawer-type structure, and the number of battery cells that need to be picked up and put in a single layer often exceeds 10. This manual picking and putting operation mode is not only inefficient and difficult to match the needs of large-scale automated production, but it is also very easy to cause problems such as bent battery cell tabs and deviations in the insertion position due to human operation errors, which directly affects the consistency of the overall quality of the battery cells. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic loading and unloading device for battery cells and aging boards to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic loading and unloading device for battery cells and aging boards, comprising a main unit, wherein the following are fixedly installed:

[0006] A battery cell transfer station includes symmetrically arranged shaping turntables that are driven to maintain circumferential rotation, and a tab shaping mechanism for pressing and pulling the tabs of multiple battery cells located on the shaping turntables one by one through simulated manual actions.

[0007] The aging board loading and unloading mechanism is symmetrically distributed around the center of the battery cell transfer station and transports aging boards along the x-axis direction.

[0008] A battery cell handling robot, including a four-axis robot, has a first lifting cylinder fixedly installed at its output end, and a first sponge suction cup fixedly installed at the output end of the first lifting cylinder. The battery cell handling robot is used to place battery cells on the shaping turntable.

[0009] A cell NG box, used to receive cells delivered by the cell handling robot;

[0010] The aging board transport line includes an aging board support plate that is driven to move along the y-axis, a positioning cylinder for pushing and fixing the aging boards placed on the aging board support plate, and an aging board transport mechanism.

[0011] The blister tray feeding mechanism is used to supply blister trays loaded with battery cells to be tested;

[0012] A blister tray buffer mechanism includes a base and a blister tray support plate. An adjusting motor is fixedly installed on the base. An adjusting screw is driven to the output end of the adjusting motor. The blister tray support plate is slidably assembled with the base via a guide rod fixedly installed thereon, and is pushed upward by a lifting motor fixedly installed on the base. The adjusting screw is threaded with symmetrically distributed second positioning baffles, the ends of which extend into the waist grooves opened on the blister tray support plate. The two second positioning baffles are driven to approach each other to clamp the blister tray. A detection sensor is fixedly installed on the second positioning baffles.

[0013] A blister pack handling mechanism includes a handling module and a bracket slidably mounted on the slide table of the handling module. The bracket includes a horizontal part, which is driven to move up and down by a second lifting cylinder fixedly mounted on the bracket. A non-marking suction cup is fixedly mounted on the horizontal part. The handling module is a linear slide table module.

[0014] A blister tray unloading mechanism is used to supply empty blister trays for loading tested battery cells that have been removed from the aging board by the battery cell transfer robot.

[0015] A cell testing camera is used to collect the execution status of the battery cell;

[0016] An aging board transport trolley is used to hold aging boards loaded with battery cells or empty aging boards.

[0017] An aging board clamping mechanism includes relatively distributed drive cylinders and pressure bars for the drive cylinders to drive the aging boards closer to each other for clamping.

[0018] An aging plate detection camera is used to collect data on the operating status of the two pressure bars.

[0019] Preferably, the blister tray loading mechanism and / or the blister tray unloading mechanism include:

[0020] A lifting screw arranged vertically;

[0021] A lifting motor that meshes with the lifting screw via gear transmission;

[0022] A support plate is slidably assembled in the vertical direction and threadedly assembled with the lifting screw. A blister tray feeding support plate that moves in the horizontal direction is slidably mounted on the support plate. The blister tray feeding support plate is used to support stacked blister trays.

[0023] A tail material insert cylinder is fixedly installed above the sliding high position of the support insert, and a tail material insert is fixedly installed on its output shaft.

[0024] A first positioning baffle is distributed opposite to the tail material insert cylinder, and the tail material insert moves relative to the first positioning baffle to clamp the stacked blister trays.

[0025] A fixedly installed positioning cylinder is on the same horizontal plane as the tail material insert cylinder, with its output end facing downwards to apply pressure to the top of the upward-moving blister tray stack.

[0026] Preferably, the blister tray loading mechanism and / or the blister tray unloading mechanism further include:

[0027] The limiting aluminum channel plate is distributed on both sides of the supporting insert plate, and includes a stainless steel smooth panel that slides with the side of the blister tray.

[0028] The limit-position variable pitch motor has a bidirectional lead screw fixedly mounted on its output shaft, while two limit aluminum slot plates are threaded onto the bidirectional lead screw to maintain relative movement.

[0029] Preferably, the battery cell transfer platform is symmetrically rotatably provided with shaping turntables distributed and driven to rotate near the loading and unloading mechanism of the aging plate, and a tab shaping mechanism distributed between the two shaping turntables, wherein:

[0030] The shaping turntable is provided with at least three stations for fixing battery cells;

[0031] The electrode shaping mechanism is used to shape the electrodes of the battery cell.

[0032] Preferably, the shaping turntable includes

[0033] A fixed battery cell adsorption platform is used to adsorb and fix battery cells.

[0034] A hollow rotating platform is fixedly installed on the shaping turntable, and at least one fixed cylinder is fixedly installed on its crossbeam. A clamping block that moves relative to the battery cell adsorption platform is fixedly installed at the output end of the fixed cylinder.

[0035] A fixedly installed lifting electric cylinder has an upwardly movable electrode support block fixedly installed at its output end. The electrode support block and the clamping block maintain a predetermined distance, and the predetermined distance is equal to the thickness of the electrode.

[0036] An anti-collision sensor is fixedly installed on the crossbeam, which is used to detect the lifting height of the tab support block.

[0037] Preferably, the tab shaping mechanism includes a shaping module, which includes a sliding platform and a base plate slidably mounted on the sliding platform. The base plate is rotatably connected to a lead screw driven by a motor on the sliding platform, wherein:

[0038] The right-side cell lifting module and the left-side cell lifting module are symmetrically fixedly mounted on the substrate.

[0039] A first sliding plate and a second sliding plate that move in the vertical direction are slidably mounted on the substrate.

[0040] The transmission screw on the right cell lifting module is connected to the first sliding plate, and the transmission screw on the left cell lifting module is connected to the second sliding plate.

[0041] A negative electrode tab adjustment module is fixedly installed on the first sliding plate, and the output end of the negative electrode tab adjustment module is fixedly connected to a roller floating spring that is slidably installed on the first sliding plate.

[0042] A positive electrode tab adjustment module is fixedly installed on the second sliding plate, and the output end of the positive electrode tab adjustment module is fixedly connected to a roller floating spring that is slidably installed on the second sliding plate.

[0043] At least two rollers that cooperate with the rollers on the roller floating spring are fixedly mounted on the substrate, and the two are used to roll and shape the positive and negative tabs of the battery cell.

[0044] Preferably, the aging board loading and unloading mechanism includes symmetrically distributed linear guides, a rack distributed between two linear guides, and a translation platform slidably mounted on the linear guides.

[0045] An aging board picking and placing mechanism is slidably arranged on the translation platform. The aging board picking and placing mechanism is connected to a translation screw that is rotatably arranged on the translation platform. The translation screw is fixedly connected to the output shaft of a translation motor that is fixedly installed on the translation platform.

[0046] The moving path of the aging board picking and placing mechanism is perpendicular to the moving path of the translation platform;

[0047] A first drive motor with a gear fixedly mounted on its output end is fixedly installed on the translation platform, and the gear is meshed with the rack.

[0048] Preferably, the aging board handling mechanism includes:

[0049] The fixed plate is fixedly installed, and guide components are fixedly installed on its opposite sides;

[0050] The second drive motor is fixedly installed at the bottom of the fixed plate, and the translation plate is slidably assembled on the top of the fixed plate. It also includes a gear-rack transmission pair, which includes a gear and a rack. The gear fixedly installed at the output end of the second drive motor extends out of the waist groove opened on the translation plate and meshes with the rack fixedly installed on the translation plate.

[0051] The pick-and-place base plate, which is slidably mounted on the translation plate, also includes a timing belt-pulley assembly, which includes a pulley fixed to the output end of the second drive motor and a pulley rotatably mounted on the pick-and-place base plate, and the two pulleys are connected by a timing belt.

[0052] Preferably, the aging board handling mechanism includes symmetrically distributed lifting cylinders and a crossbeam plate fixedly installed at the output end of the lifting cylinders, and a handling module is fixedly installed on the crossbeam plate.

[0053] The transport module is a support platform assembled at the output end of the cylinder;

[0054] It also includes support members symmetrically distributed about the center of the crossbeam plate, and support bases for supporting the aging board, which are symmetrically distributed at equal intervals on the support members.

[0055] Preferably, the cell transfer robot includes a four-axis robot, the output end of which is fixedly mounted with an installation platform, and variable pitch cylinders are symmetrically fixedly mounted on the installation platform. A third lifting cylinder is fixedly mounted on the output end of each variable pitch cylinder.

[0056] The third lifting cylinder is arranged vertically, and a sponge suction cup is fixedly installed at its output end.

[0057] In the above technical solution, the automatic loading and unloading equipment for battery cells and aging boards provided by the present invention has the following beneficial effects: First, in terms of product quality and production safety, the equipment replaces manual operation with fully automated mechanical operation, which greatly improves the consistency and accuracy of battery cell clamping. It not only effectively eliminates clamping errors caused by human operation mistakes, but also avoids physical damage to the battery cells during subsequent formation testing, thereby significantly reducing quality risks such as poor formation and internal short circuits.

[0058] Secondly, in terms of production efficiency, the equipment operates at a stable and controllable pace, enabling continuous 24-hour operation. Its production capacity is completely unaffected by subjective factors such as human skill level and fatigue, making capacity planning and forecasting more accurate and reliable.

[0059] Secondly, regarding labor costs and intensity, this equipment significantly reduces the operational difficulty and workload for on-site personnel. Operators only need to handle auxiliary tasks such as loading and unloading blister packs, changing frames, and equipment inspection, thus optimizing manpower allocation. Furthermore, in terms of system integration and production line expansion, this equipment has excellent interfaces and expandability, facilitating integration with upstream and downstream equipment to form a large-scale fully automated production line. It can also be further connected to AGV carts and various conveyor lines, providing a foundation for building an intelligent, unmanned factory. Attached Figure Description

[0060] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0061] Figure 1 The diagram provided for this embodiment of the invention is a schematic representation of the external structure.

[0062] Figure 2 The structural schematic diagram provided for this embodiment of the invention is a top view of the entire machine;

[0063] Figure 3 The provided diagram is a structural schematic of the entire machine from an axial perspective, as shown in the embodiment of the present invention.

[0064] Figure 4 This is a schematic diagram of the structure of the blister tray feeding mechanism provided in an embodiment of the present invention;

[0065] Figure 5 This is a schematic diagram of the blister pack buffer mechanism provided in an embodiment of the present invention;

[0066] Figure 6 This is a schematic diagram of the structure of the blister tray handling mechanism provided in an embodiment of the present invention;

[0067] Figure 7 The provided embodiment of the present invention provides a structural schematic diagram of a battery cell handling robot;

[0068] Figure 8 The provided embodiment of the present invention provides a schematic diagram of the structure of the battery cell transfer station;

[0069] Figure 9 The provided embodiment of the present invention is a schematic diagram of the structure of the battery cell turntable;

[0070] Figure 10 This is a schematic diagram of the electrode shaping mechanism provided in an embodiment of the present invention;

[0071] Figure 11 The provided diagram illustrates the structure of the aging board loading and unloading mechanism in an embodiment of the present invention.

[0072] Figure 12 This is a schematic diagram of the aging board handling mechanism provided in an embodiment of the present invention;

[0073] Figure 13 The flowchart provided for the aging board handling line is shown in the embodiment of the present invention.

[0074] Figure 14 The provided embodiment of the present invention provides a structural schematic diagram of the aging board handling mechanism;

[0075] Figure 15 This is a schematic diagram of the aging board clamping mechanism provided in an embodiment of the present invention;

[0076] Figure 16 The diagram provided in this embodiment of the invention is a structural schematic of a battery cell transfer robot.

[0077] Explanation of reference numerals in the attached figures:

[0078] 1. Aging board loading and unloading mechanism;

[0079] 1.1 First drive motor; 1.2 Linear guide rail; 1.3 Rack; 1.5 Translation motor; 1.6 Translation lead screw;

[0080] 1.4. Aging board handling mechanism;

[0081] 1.4.1 Second drive motor; 1.4.2 Pick-up and drop base plate; 1.4.3 Gear-rack transmission pair; 1.4.4 Translation plate; 1.4.5 Aging plate guide; 1.4.6 Synchronous belt-puller assembly.

[0082] 2. Battery cell transfer station;

[0083] 2.1 Shaping turntable; 2.1.1 Hollow rotating platform; 2.1.2 Battery cell adsorption platform; 2.1.3 Compression spring; 2.1.4 Fixing cylinder; 2.1.5 Anti-collision sensor; 2.1.6 Compression block; 2.1.7 Electrode support block; 2.1.8 Lifting cylinder;

[0084] 2.2, Ear reshaping mechanism;

[0085] 2.2.1, Shaping mechanism translation module; 2.2.2, Positive electrode tab adjustment module; 2.2.3, Roller floating spring; 2.2.4, Right side cell lifting module; 2.2.5, Left side cell lifting module; 2.2.6, Negative electrode tab adjustment module; 2.2.7, Ceramic roller.

[0086] 3. Cell NG box;

[0087] 4. Battery cell handling robot;

[0088] 4.1 Four-axis robot; 4.2 First lifting cylinder; 4.3 First sponge suction cup.

[0089] 5. Blister tray feeding mechanism;

[0090] 5.1 Suction support plate; 5.2 Double-acting lead screw; 5.3 Lifting motor; 5.4 Limiting variable pitch motor; 5.5 Pushing cylinder; 5.6 Support plate; 5.7 Lifting lead screw; 5.8 Tail insert plate; 5.9 Tail insert plate cylinder; 5.10 Positioning cylinder; 5.11 First positioning baffle; 5.12 Limiting aluminum channel plate.

[0091] 6. Blister tray buffer mechanism;

[0092] 6.1 Adjustment motor; 6.2 Lifting motor; 6.3 Adjustment screw; 6.4 Positioning baffle; 6.5 Detection sensor; 6.6 Support plate.

[0093] 7. Blister tray handling mechanism;

[0094] 7.1 Handling module; 7.2 Second lifting cylinder; 7.3 Non-marking suction cup.

[0095] 8. Blister tray unloading mechanism;

[0096] 9. Battery cell testing camera;

[0097] 10. Transport line;

[0098] 10.1 Aging board support plate; 10.3 Positioning cylinder;

[0099] 10.2. Handling mechanism;

[0100] 10.2.1 Handling module; 10.2.2 Support component; 10.2.3 Lifting cylinder.

[0101] 11. Transport trolley;

[0102] 12. Battery cell transfer robot;

[0103] 12.1 Four-axis robot; 12.2 Variable pitch cylinder; 12.3 Third lifting cylinder; 12.4 Second sponge suction cup.

[0104] 13. Clamping mechanism;

[0105] 13.1 Drive cylinder; 13.2 Pressure bar; 15. Aging board.

[0106] 14. Inspect the camera;

[0107] 15. Aging board;

[0108] 16. Host computer. Detailed Implementation

[0109] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0110] Please see Figure 1-16 This invention provides a technical solution: an automated loading and unloading device for battery cells and aging boards, comprising a main unit 16 serving as the supporting frame and protective shell for the entire device. Inside the main unit 16, multiple collaborative functional modules are fixedly installed according to the process flow layout, specifically including: a battery cell transfer table 2, an aging board loading and unloading mechanism 1, a battery cell handling robot 4, a battery cell NG box 3, an aging board handling line 10, a blister tray loading mechanism 5, a blister tray buffer mechanism 6, a blister tray handling mechanism 7, a blister tray unloading mechanism 8, a battery cell inspection camera 9, an aging board transport trolley 11, an aging board clamping mechanism 13, an aging board inspection camera 14, and a battery cell transfer robot 12. These modules coordinate their actions through a precise control system to jointly realize the automated loading and unloading, transfer, shaping, and inspection of battery cells and aging boards throughout the entire process.

[0111] like Figure 1 , Figure 2 , Figure 8 As shown, the cell transfer station 2 includes two symmetrically distributed shaping turntables 2.1 and a tab shaping mechanism 2.2 located between the two shaping turntables 2.1. The two shaping turntables 2.1 are controlled by independent drive devices and can maintain intermittent circumferential rotation. Each shaping turntable 2.1 has at least three stations along the circumferential direction for fixing the cells, enabling continuous cell flow. The tab shaping mechanism 2.2 is used to shape the tabs of multiple cells located on the shaping turntables 2.1 one by one. Its action simulates manually smoothing the tabs, using pressing and pulling to flatten the tabs and ensure good contact during subsequent formation testing.

[0112] Furthermore, such as Figure 9As shown, a cell adsorption platform 2.1.2 is fixedly installed on the shaping turntable 2.1. This adsorption platform uses vacuum adsorption to firmly fix the cell body in the working position. A hollow rotating platform 2.1.1 is fixedly installed at the center of the shaping turntable 2.1. This platform can achieve high-precision rotation indexing. At least one fixing cylinder 2.1.4 is fixedly installed on the crossbeam of the hollow rotating platform 2.1.1. The output end of the fixing cylinder 2.1.4 faces downward and a clamping block 2.1.6 is fixedly installed thereon. The clamping block 2.1.6 can move up and down relative to the cell adsorption platform 2.1.2 under the drive of the fixing cylinder 2.1.4 to clamp the cell from above and prevent the cell from shifting during shaping. Below the shaping turntable 2.1, corresponding to the clamping station, a lifting cylinder 2.1.8 is fixedly installed. The output end of the lifting cylinder 2.1.8 faces upwards and is fixedly mounted with a tab support block 2.1.7 for precisely supporting the tabs of the battery cell from below. To ensure coordination between clamping and support, a constant predetermined distance is maintained between the tab support block 2.1.7 and the clamping block 2.1.6. This predetermined distance is exactly equal to the thickness of one battery cell tab, thus clamping the tab between them during shaping. In addition, an anti-collision sensor 2.1.5 is fixedly installed on the crossbeam to detect the lifting height of the tab support block 2.1.7 in real time. Once abnormal lifting is detected (such as improper placement of the battery cell), a signal is immediately sent to stop the operation, preventing rigid collision between the tab support block 2.1.7 and the clamping block 2.1.6 that could damage the battery cell or equipment.

[0113] like Figure 10As shown, the tab shaping mechanism 2.2 includes a shaping module 2.2.1, which has a fixed sliding platform and a base plate slidably mounted on the sliding platform. The base plate is rotatably connected to a motor-driven lead screw on the sliding platform, allowing for precise position adjustment in the horizontal direction (Y-axis direction) to accommodate the tab positions of different battery cell specifications. A right-side battery cell lifting module 2.2.4 and a left-side battery cell lifting module 2.2.5 are symmetrically fixedly mounted on the base plate. A first sliding plate and a second sliding plate, which can move independently in the vertical direction, are also slidably mounted on the base plate. The drive lead screw of the right-side battery cell lifting module 2.2.4 is connected to the first sliding plate, and the drive lead screw of the left-side battery cell lifting module 2.2.5 is connected to the second sliding plate, allowing the first and second sliding plates to be driven to rise and fall independently to accommodate differences in the height of the battery cell tabs. A negative electrode tab adjustment module 2.2.6 is fixedly mounted on the first sliding plate, and its output end is fixedly connected to a roller floating spring 2.2.3 slidably mounted on the first sliding plate. A positive electrode tab adjustment module 2.2.2 is fixedly mounted on the second sliding plate, and its output end is fixedly connected to a roller floating spring 2.2.3 slidably mounted on the second sliding plate. On the substrate, corresponding to the position of each roller floating spring 2.2.3, at least two ceramic rollers 2.2.7 are fixedly mounted. During operation, the rollers on the roller floating springs 2.2.3 cooperate with the ceramic rollers 2.2.7 to roll and shape the positive and negative electrodes of the battery cell. The roller floating springs 2.2.3 have built-in springs to provide flexible pressure and prevent damage to the electrodes due to excessive rigid pressure.

[0114] like Figure 1 , Figure 2 , Figure 11As shown, there are two sets of aging board loading and unloading mechanisms 1, which are symmetrically distributed about the center of the battery cell transfer table 2. They are used to transport aging boards 15 along the X-axis (i.e., the length direction of the equipment) to realize the exchange of aging boards between the aging board handling line 10 and the aging board transport trolley 11. Each set of aging board loading and unloading mechanisms 1 includes symmetrically distributed linear guides 1.2, racks 1.3 parallel to each other between the two linear guides 1.2, and a translation platform slidably mounted on the linear guides 1.2. The translation platform can move along the X-axis. An aging board picking and placing mechanism 1.4 is also slidably arranged on the translation platform. The aging board picking and placing mechanism 1.4 is connected to a translation screw 1.6 rotatably mounted on the translation platform. The translation screw 1.6 is driven to rotate by a translation motor 1.5 fixedly mounted on the translation platform, thereby driving the aging board picking and placing mechanism 1.4 to move along the Y-axis (i.e., the width direction of the equipment). Therefore, the moving path (Y-axis) of the aging board picking and placing mechanism 1.4 is perpendicular to the moving path (X-axis) of the translation platform, together forming a two-dimensional moving system in the XY plane, enabling the aging board picking and placing mechanism 1.4 to accurately reach any target position on the trolley and the line. A first drive motor 1.1 is fixedly installed at the bottom of the translation platform, and a gear is fixedly installed at its output end. This gear meshes with a fixedly installed rack 1.3. By rotating the first drive motor 1.1 forward and backward, the entire translation platform can be driven to move along the X-axis.

[0115] like Figure 12As shown, the aging board picking and placing mechanism 1.4 adopts a stroke multiplication structure design to achieve a larger stroke movement within a limited space. Its specific structure includes a fixed plate, which is fixedly connected to the sliding plate on the aforementioned translation platform. Aging board guides 1.4.5 are fixedly installed on opposite sides of the fixed plate to guide and limit the aging board's movement during picking and placing, preventing positional deviation. A second drive motor 1.4.1 is fixedly installed at the bottom of the fixed plate, and a translation plate 1.4.4, movable along the Y-axis, is slidably mounted on the top of the fixed plate. Inside the mechanism is a gear-rack transmission pair 1.4.3, which includes a gear and a rack. The output shaft of the second drive motor 1.4.1 passes through the fixed plate, and the gear fixedly installed at its end extends from a groove in the translation plate 1.4.4 and meshes with the rack fixedly installed at the bottom of the translation plate 1.4.4. When the second drive motor 1.4.1 rotates, it directly drives the translation plate 1.4.4 to perform a first-stage translation on the fixed plate via gear and rack transmission. A pick-and-place base plate 1.4.2 is also slidably mounted on the translation plate 1.4.4, which is used for final support and pick-and-place of the aging plate. To achieve a second-stage translation, the mechanism also includes a synchronous belt-pulley assembly 1.4.6, which includes a driving pulley fixed to the output shaft of the second drive motor 1.4.1 and a driven pulley rotatably mounted on the pick-and-place base plate 1.4.2. The two pulleys are connected by a synchronous belt, and the synchronous belt is fixedly connected to the translation plate 1.4.4. Thus, when the second drive motor 1.4.1 drives the translation plate 1.4.4 to move, due to the motion coupling effect of the synchronous belt-pull group 1.4.6, the pick-up and place base plate 1.4.2 will generate a secondary displacement in the same direction relative to the translation plate 1.4.4, and its moving speed is twice that of the translation plate 1.4.4 (i.e., the stroke is doubled), thereby achieving a larger effective stroke in a smaller space.

[0116] like Figure 1 , Figure 2 , Figure 13 , Figure 14As shown, the aging board transport line 10 includes multiple parallel aging board support plates 10.1 that are driven to move along the Y-axis direction (i.e., the width direction of the line) to support and transport the aging boards 15. Multiple positioning cylinders 10.3 are arranged along the transport direction on the line. The output ends of these positioning cylinders 10.3 can extend to laterally push and position the aging boards 15 stationed at the workstation, ensuring their positional accuracy. The line also includes an aging board transport mechanism 10.2 for switching the aging boards between different workstations. The aging board transport mechanism 10.2 includes symmetrically distributed lifting cylinders 10.2.3 and crossbeams fixedly installed at the output ends of these lifting cylinders 10.2.3. The crossbeams can be driven by the lifting cylinders 10.2.3 to rise and fall as a whole. A transport module 10.2.1 is fixedly installed on the crossbeam. This transport module 10.2.1 can be a cylinder-driven platform or an electric slide, etc., capable of movement in the Y-axis direction. Multiple support members 10.2.2, symmetrically distributed about the center of the crossbeam, are also fixedly installed on the crossbeam plate. Each support member 10.2.2 has symmetrically distributed support seats at equal intervals. These support seats are used to lift the aging board 15 from below during transportation. During operation, the lifting cylinder 10.2.3 drives the crossbeam plate to rise, causing the support seats on the support members 10.2.2 to lift the aging board 15, completely separating it from the aging board support plate 10.1 below. Subsequently, the transportation module 10.2.1 drives the entire lifting structure (i.e., the lifted aging board 15) to move along the Y-axis. After reaching the target workstation, the lifting cylinder 10.2.3 descends, smoothly placing the aging board 15 on the aging board support plate 10.1 at that workstation, completing the transportation.

[0117] like Figure 1 , Figure 2 , Figure 4As shown, the blister tray feeding mechanism 5 is used to automatically supply blister trays loaded with battery cells to be tested. Its core structure includes a vertically arranged lifting screw 5.7, which is meshed with the output end of a lifting motor 5.3 via a gear transmission mechanism. A support plate 5.6 is slidably mounted on the guide post of the mechanism in the vertical direction and threadedly fitted to the lifting screw 5.7, thereby achieving lifting and lowering motion driven by the lifting motor 5.3. A blister tray feeding support plate 5.1, which can be pulled out horizontally, is slidably mounted on the support plate 5.6. This support plate is used for manually placing and supporting stacked blister trays. Above the high position of the sliding stroke of the support plate 5.6, a tail material insert cylinder 5.9 is fixedly installed, and a tail material insert plate 5.8 is fixedly mounted on its output shaft. Opposite to the tail material insert cylinder 5.9, a first positioning baffle 5.11 is fixedly installed. When the stack of blister packs is raised to a high position, the tail material insert cylinder 5.9 drives the tail material insert 5.8 to extend, working in conjunction with the first positioning baffle 5.11 to clamp the stacked blister packs from both sides, preventing them from tipping over. In addition, the mechanism is also fixedly equipped with a positioning cylinder 5.10, which is on the same horizontal plane as the tail material insert cylinder 5.9, with its output end facing downwards. This cylinder extends downwards from above when the stack of blister packs rises to the material-retrieving position, pressing down on the topmost blister pack for precise positioning and easy robot material retrieval.

[0118] Furthermore, such as Figure 4 As shown, the blister tray feeding mechanism 5 also includes two limiting aluminum channel plates 5.12, which are symmetrically distributed on opposite sides of the supporting insert plate 5.6. Each limiting aluminum channel plate 5.12 has a stainless steel smooth panel embedded on its inner surface, forming a sliding fit with the side of the blister tray, serving to guide and reduce friction. To achieve compatibility with blister trays of different widths, the mechanism also includes a limiting pitch motor 5.4, whose output shaft is fixedly mounted with a bidirectional lead screw 5.2 (i.e., the threads at both ends of the lead screw rotate in opposite directions). The two limiting aluminum channel plates 5.12 are respectively threaded onto the positive and negative thread sections of the bidirectional lead screw 5.2. When the limiting pitch motor 5.4 drives the bidirectional lead screw 5.2 to rotate, the two limiting aluminum channel plates 5.12 will move synchronously towards or away from each other, thereby automatically adjusting the spacing to accommodate blister trays of different sizes.

[0119] like Figure 5As shown, the blister tray buffer mechanism 6 is used to temporarily store empty blister trays to enable continuous operation without shutting down the machine. It includes a fixedly mounted base and a blister tray support 6.6 that can move up and down. An adjusting motor 6.1 is fixedly mounted on the base, and its output end is connected to an adjusting screw 6.3. The blister tray support 6.6 is slidably assembled with the base via a guide rod fixedly mounted thereon, and is driven by a lifting motor 6.2 fixedly mounted on the base via a screw or belt mechanism to achieve lifting movement. Two symmetrically distributed second positioning baffles 6.4 are threaded onto the adjusting screw 6.3. The ends of these two second positioning baffles 6.4 extend downwards, passing through a groove on the blister tray support 6.6. When the adjusting motor 6.1 drives the adjusting screw 6.3 to rotate, the two second positioning baffles 6.4 can move closer or further apart to clamp or release blister trays of different widths. Each second positioning baffle 6.4 is also fixedly equipped with a detection sensor 6.5 (such as a photoelectric sensor) to detect whether the blister tray is accurately positioned.

[0120] like Figure 6 As shown, the blister tray transport mechanism 7 is responsible for transporting the blister tray between the blister tray loading mechanism 5, the buffer mechanism 6, and the unloading mechanism 8. It includes a linear transport module 7.1 (such as a linear motor module or a lead screw slide module) and a bracket slidably mounted on the slide of the transport module 7.1. The bracket is L-shaped, including a vertical section and a horizontal section. The horizontal section is slidably connected to the vertical section of the bracket via a guide rod and is driven by a second lifting cylinder 7.2 fixedly mounted on the bracket to achieve vertical movement. Multiple non-marking suction cups 7.3 are fixedly mounted on the lower surface of the horizontal section for picking up the blister tray without leaving marks. The transport module 7.1 drives the entire bracket to move along the X-axis, thereby realizing the transfer of the blister tray between the various mechanisms.

[0121] like Figure 1 , Figure 2 As shown, the blister tray unloading mechanism 8 is used to supply empty blister trays for loading the tested battery cells that have been removed from the aging board 15 by the battery cell transfer robot 12. Its structure is exactly the same as the aforementioned blister tray loading mechanism 5, except that it is used to receive empty trays and stack blister trays full of battery cells, so its internal structure will not be described in detail here.

[0122] like Figure 1 , Figure 2 , Figure 7As shown, the battery cell handling robot 4 is a four-axis robot 4.1 (SCARA robot). A first lifting cylinder 4.2 is fixedly mounted on its end output shaft. The output end of the first lifting cylinder 4.2 faces downwards and is fixedly mounted with a first sponge suction cup 4.3. This first sponge suction cup 4.3 can be designed as multiple independently controlled small suction cups to accommodate battery cells of different sizes. The main task of the battery cell handling robot 4 is to pick up the battery cells to be tested from the blister packing mechanism 5, then transport them above the battery cell inspection camera 9 for photographic inspection. Subsequently, based on the inspection results, qualified battery cells are placed on the shaping turntable 2.1, or unqualified battery cells are placed into the battery cell NG box 3. The battery cell NG box 3 is fixedly installed inside the main unit 16 and is used to centrally collect all battery cells judged to be unqualified.

[0123] like Figure 16 As shown, the battery cell transfer robot 12 also uses a four-axis robot 12.1, with an installation platform fixedly mounted at its output end. On the installation platform, two variable-pitch cylinders 12.2 are symmetrically fixedly mounted, and a third lifting cylinder 12.3 is fixedly mounted at the output end of each variable-pitch cylinder 12.2. The third lifting cylinder 12.3 is vertically arranged with its output end facing downwards and is fixedly mounted with a sponge suction cup 12.4. The battery cell transfer robot 12 undertakes two key tasks: first, it picks up qualified battery cells after shaping on the battery cell transfer table 2 from the shaping turntable 2.1 and transfers them to the aging board 15 on the aging board transport line 10 (battery cell loading); second, it picks up battery cells that have completed formation testing and been removed from the aging board 15 and transfers them to the empty blister tray of the blister tray unloading mechanism 8 (battery cell unloading). Since the spacing between the cells on the cell transfer platform 2 may differ from the spacing between the cells in the aging board 15, a variable pitch cylinder 12.2 is installed. This cylinder can adjust the center distance between the two sponge suction cups 12.4 in real time during the robot's handling process, thereby achieving precise fitting.

[0124] like Figure 1 , Figure 2 As shown, the cell inspection camera 9 is fixedly installed inside the main unit 16 with its lens facing upwards, located on the transport path of the cell transport robot 4. When the cell transport robot 4 picks up a cell and passes over it, the cell inspection camera 9 takes a picture of the state of the cell's tabs and sends the image data to the control system to determine whether the tabs are flat, whether there are any defects such as bending, and to locate the precise position of the cell and guide the robot to place it.

[0125] The aging board inspection camera 14 is fixedly installed inside the host 16, and its lens is aimed at the working area of ​​the aging board clamping mechanism 13 to collect images of the operating status of the two pressure bars 13.2. The image recognition determines whether the aging clamp has been fully opened, ensuring that the cell transfer robot 12 will not collide when picking up and discharging the cells.

[0126] like Figure 15 As shown, the aging board clamping mechanism 13 is fixedly installed on the side of the aging board transport line 10. It includes two opposing drive cylinders 13.1, each with a pressure bar 13.2 fixedly installed at its output end. When the positioning cylinder 10.3 precisely positions the aging board 15 at the clamping station, the two drive cylinders 13.1 move synchronously, driving the two pressure bars 13.2 to move downwards and move closer to each other, pressing down on the opening mechanisms on both sides of the aging board 15, forcing the aging clamps inside the aging board to open, thereby allowing the cell transfer robot 12 to insert or remove the cells.

[0127] like Figure 1 , Figure 3 As shown, the aging board transport trolley 11 serves as a storage and turnover unit for aging boards, used to accommodate stacked aging boards 15 loaded with battery cells, or empty aging boards 15. The trolley 11 can be moved by AGV or manually, and can precisely dock with the aging board loading and unloading mechanism 1 to realize batch material flow.

[0128] The working process of this equipment is as follows:

[0129] First, a manual person places the stacked blister trays containing the battery cells to be tested onto the blister tray feeding support plate 5.1 of the blister tray feeding mechanism 5, and pushes the support plate back into the equipment. The equipment automatically lifts the stacked blister trays to the picking station. The battery cell handling robot 4 picks up a single battery cell from the blister tray, passes it to the battery cell detection camera 9 for photographic inspection, and if the tab is unqualified, the battery cell is directly placed into the battery cell NG box 3; if qualified, the battery cell is placed into one station of the shaping turntable 2.1 of the battery cell transfer table 2. The shaping turntable 2.1 rotates, sending the battery cells sequentially to the pressing station (fixed cylinder 2.1.4 drives pressing block 2.1.6 to press the battery cell), the tab support station (lifting cylinder 2.1.8 drives tab support block 2.1.7 to support the tab), and the tab shaping station (ceramic roller 2.2.7 of the tab shaping mechanism 2.2 rolls the tab), completing the tab shaping. After shaping, the battery cells continue to rotate with the turntable to the picking position. The battery cell transfer robot 12 picks them up and, after adjusting the spacing using the variable-pitch cylinder 12.2, places them into the aging plates 15 on the aging plate transport line 10. The aging plates 15 move stepwise along the line. At each station, the aging plate clamping mechanism 13 opens the aging clamps, and the battery cell transfer robot 12 places the battery cells in. The aging plate 15, filled with battery cells, moves to the end of the line, where it is removed from the line by the aging plate loading and unloading mechanism 1 on the left and stacked in the aging plate transport trolley 11. For aging plates 15 that have completed formation testing, they are removed from another aging plate transport trolley 11 by the aging plate loading and unloading mechanism 1 on the right and returned to the aging plate transport line 10. The line transports them to the clamping station, where the aging plate clamping mechanism 13 opens the aging clamps again, and the battery cell transfer robot 12 removes the tested battery cells. If the battery cell passes the test, it is placed in the empty blister tray of the blister tray unloading mechanism 8; if it fails, it is placed in the NG box 3. When the blister tray of the blister tray unloading mechanism 8 is full, the blister tray transport mechanism 7 moves it to the blister tray buffer mechanism 6 for temporary storage, or it can be removed manually. Throughout the process, each testing camera monitors in real time, and the control system coordinates the actions of all mechanisms to achieve fully automatic, high-efficiency, and high-precision loading and unloading of battery cells and aging boards.

[0130] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic loading and unloading device for battery cells and aging boards, characterized in that, Including the main unit (16), which has the following fixedly installed inside: The battery cell transfer station (2) includes symmetrically arranged shaping turntables (2.1) that are driven to maintain circumferential rotation and a tab shaping mechanism (2.2) for pressing and pulling the tabs of multiple battery cells located on the shaping turntables (2.1) one by one through simulated manual actions. The battery cell transfer station (2) is symmetrically distributed around the center and the aging board loading and unloading mechanism (1) is used to transport aging boards along the x-axis. The battery cell handling robot (4) includes a four-axis robot (4.1), whose output end is fixedly installed with a first lifting cylinder (4.2), and the output end of the first lifting cylinder (4.2) is fixedly installed with a first sponge suction cup (4.3). The battery cell handling robot (4) is used to place the battery cell on the shaping turntable (2.1). A cell NG box (3) is used to receive the cells delivered by the cell handling robot (4); The aging board transport line (10) includes an aging board support plate (10.1) that is driven to move along the y-axis, a positioning cylinder (10.3) for pushing and fixing the aging board (15) placed on the aging board support plate (10.1), and an aging board transport mechanism (10.2). The blister tray feeding mechanism (5) is used to supply the blister tray loaded with the battery cell to be tested; The blister tray buffer mechanism (6) includes a base and a blister tray support plate (6.6) that are installed according to regulations. An adjustment motor (6.1) is fixedly installed on the base. An adjustment screw (6.3) is driven to the output end of the adjustment motor (6.1). The blister tray support plate (6.6) is slidably assembled with the base through a guide rod fixedly installed on it, and is pushed upward by a lifting motor (6.2) fixedly installed on the base. The adjustment screw (6.3) is threaded with symmetrically distributed second positioning baffles (6.4) with the ends extending out of the waist grooves opened on the blister tray support plate (6.6). The two second positioning baffles (6.4) are driven to approach each other to clamp the blister tray. A detection sensor (6.5) is fixedly installed on the second positioning baffles (6.4). The blister tray handling mechanism (7) includes a handling module (7.1) and a bracket slidably mounted on the slide of the handling module (7.1). The bracket includes a horizontal part, which is driven to move up and down by a second lifting cylinder (7.2) fixedly mounted on the bracket. A non-marking suction cup (7.3) is fixedly mounted on the horizontal part. The handling module (7.1) is a linear slide module. The blister tray unloading mechanism (8) is used to supply an empty blister tray to load the tested battery cells that have been removed from the aging board (15) by the battery cell transfer robot (12); A cell testing camera (9) is used to collect the execution status of the cell; An aging board transport trolley (11) is used to hold aging boards (15) loaded with battery cells or empty aging boards (15). The aging board clamping mechanism (13) includes relatively distributed drive cylinders (13.1) and pressure bars (13.2) for driving the drive cylinders (13.1) to clamp the aging boards (15) closer to each other. An aging plate inspection camera (14) is used to collect the operating status of the two pressure bars (13.2).

2. The automatic loading and unloading equipment for battery cells and aging boards according to claim 1, characterized in that, The blister tray loading mechanism (5) and / or the blister tray unloading mechanism (8) include: Lifting screw (5.7) arranged vertically. A lifting motor (5.3) meshes with the lifting screw (5.7) via gear transmission. A support plate (5.6) is slidably assembled in the vertical direction and threadedly assembled with the lifting screw (5.7). The support plate (5.6) is slidably mounted on a blister tray feeding support plate (5.1) that moves in the horizontal direction. The blister tray feeding support plate (5.1) is used to support stacked blister trays. A tail material insert cylinder (5.9) is fixedly installed above the sliding high position of the support insert plate (5.6), and a tail material insert plate (5.8) is fixedly installed on its output shaft. A first positioning baffle (5.11) is distributed opposite to the tail insert cylinder (5.9), and the tail insert (5.8) moves relative to the first positioning baffle (5.11) to clamp the stacked blister trays; The fixedly installed positioning cylinder (5.10) is on the same horizontal plane as the tail material insert cylinder (5.9), and its output end faces downward to apply pressure to the top of the upward-moving blister tray stack.

3. The automatic loading and unloading equipment for battery cells and aging boards according to claim 2, characterized in that, The blister tray feeding mechanism (5) and / or the blister tray unloading mechanism (8) further include: The limiting aluminum channel plate (5.12) is distributed on both sides of the supporting insert plate (5.6) and includes a stainless steel smooth panel that slides with the side of the blister tray. The limit variable pitch motor (5.4) has a bidirectional lead screw (5.2) fixedly mounted on its output shaft, while two limit aluminum slot plates (5.12) are threaded onto the bidirectional lead screw (5.2) to maintain relative movement.

4. The automatic loading and unloading equipment for battery cells and aging boards according to claim 1, characterized in that, The cell transfer platform (2) is symmetrically rotatably equipped with shaping turntables (2.1) distributed near the aging plate loading and unloading mechanism (1) and driven to rotate, and a tab shaping mechanism (2.2) distributed between the two shaping turntables (2.1), wherein: The shaping turntable (2.1) is provided with at least three stations for fixing battery cells; The tab shaping mechanism (2.2) is used to shape the tabs of the battery cell.

5. The automatic loading and unloading equipment for battery cells and aging boards according to claim 4, characterized in that, The shaping turntable (2.1) includes Fixed battery cell adsorption platform ( 2.1.2), which is used to adsorb and fix the battery cell; A hollow rotating platform (2.1.1) is fixedly installed on the shaping turntable (2.1), and at least one fixed cylinder is fixedly installed on its crossbeam. 2.1.4), the output end of the fixed cylinder (2.1.4) is fixedly installed with a clamping block (2.1.6) that moves relative to the battery cell adsorption platform (2.1.2). A fixedly installed lifting electric cylinder (2.1.8) has an upwardly movable electrode support block (2.1.7) fixedly installed at its output end. The electrode support block (2.1.7) and the clamping block (2.1.6) maintain a predetermined distance, and the predetermined distance is equal to the thickness of the electrode. Anti-collision sensors are fixedly installed on the crossbeam. 2.1.5), which is used to detect the lifting height of the tab support block (2.1.7).

6. The automatic loading and unloading equipment for battery cells and aging boards according to claim 5, characterized in that, The tab shaping mechanism (2.2) includes a shaping module (2.2.1), which includes a sliding platform and a base plate slidably mounted on the sliding platform. The base plate is rotatably connected to a lead screw driven by a motor on the sliding platform, wherein: The right-side cell lifting module (2.2.4) and the left-side cell lifting module (2.25) are symmetrically fixed on the substrate. A first sliding plate and a second sliding plate that move in the vertical direction are slidably mounted on the substrate. The drive screw on the right cell lifting module (2.2.4) is connected to the first sliding plate, and the drive screw on the left cell lifting module (2.25) is connected to the second sliding plate. A negative electrode tab adjustment module (2.2.6) is fixedly installed on the first sliding plate, and the output end of the negative electrode tab adjustment module (2.2.6) is fixedly connected to a roller floating spring (2.2.3) that is slidably installed on the first sliding plate; A positive electrode tab adjustment module (2.2.2) is fixedly installed on the second sliding plate, and the output end of the positive electrode tab adjustment module (2.2.2) is fixedly connected to a roller floating spring (2.2.3) that is slidably installed on the second sliding plate; At least two rollers (2.2.7) are fixedly mounted on the substrate and cooperate with the rollers on the roller floating spring (2.2.3). The two rollers cooperate to roll and shape the positive and negative tabs of the battery cell.

7. The automatic loading and unloading equipment for battery cells and aging boards according to claim 1, characterized in that, The aging board loading and unloading mechanism (1) includes symmetrically distributed linear guides (1.2), a rack (1.3) distributed between the two linear guides (1.2), and a translation platform slidably mounted on the linear guides (1.2); An aging board picking and placing mechanism (1.4) is slidably arranged on the translation platform. The aging board picking and placing mechanism (1.4) is connected to a translation screw (1.6) rotatably arranged on the translation platform. The translation screw (1.6) is fixedly connected to the output shaft of a translation motor (1.5) fixedly installed on the translation platform. The moving path of the aging board picking and placing mechanism (1.4) is perpendicular to the moving path of the translation platform; A first drive motor (1.1) with a gear fixedly mounted on its output end is fixedly installed on the translation platform, and the gear is meshed with the rack (1.3).

8. The automatic loading and unloading equipment for battery cells and aging boards according to claim 7, characterized in that, The aging board handling mechanism (1.4) includes: The fixed plate is fixedly installed, and guide components are fixedly installed on its opposite sides (1.4.5). The second drive motor (1.4.1) is fixedly installed at the bottom of the fixed plate, and the translation plate (1.4.4) is slidably assembled on the top of the fixed plate. It also includes a gear-rack transmission pair (1.4.3), which includes a gear and a rack. The gear fixedly installed at the output end of the second drive motor (1.4.1) extends out of the waist groove opened on the translation plate (1.4.4) and meshes with the rack fixedly installed on the translation plate (1.4.4). The pick-and-place base plate (1.4.2) slidably mounted on the translation plate (1.4.4) also includes a synchronous belt-pulley assembly (1.4.6), which includes a pulley fixed to the output end of the second drive motor (1.4.1) and a pulley rotatably mounted on the pick-and-place base plate (1.4.2), and the two pulleys are connected by a synchronous belt.

9. The automatic loading and unloading equipment for battery cells and aging boards according to claim 1, characterized in that, The aging board handling mechanism (10.2) includes symmetrically distributed lifting cylinders (10.2.3) and a crossbeam plate fixedly installed at the output end of the lifting cylinders (10.2.3). A handling module (10.2.1) is fixedly installed on the crossbeam plate. The transport module (10.2.1) is a support platform assembled at the cylinder output end; It also includes a support member (10.2.2) symmetrically distributed about the center of the crossbeam plate, and a support base for supporting the aging board (15) with symmetrically distributed at equal intervals on the support member (10.2.2).

10. The automatic loading and unloading equipment for battery cells and aging boards according to claim 1, characterized in that, The cell transfer robot (12) includes a four-axis robot (12.1), the output end of which is fixedly mounted with an installation platform, and variable pitch cylinders (12.2) are symmetrically fixedly mounted on the installation platform. The output end of the variable pitch cylinders (12.2) is fixedly mounted with a third lifting cylinder (12.3). The third lifting cylinder (12.3) is arranged vertically, and a sponge suction cup (12.4) is fixedly installed at its output end.

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