A lithium ion battery pole piece detection device

Abstract

The utility model provides a kind of lithium ion battery pole piece detection device.It relates to lithium ion battery pole piece field, lithium ion battery pole piece detection device includes symmetrically arranged in the left and right sides of mounting bracket and is conveyed, detects and pushes away component, and the right clamping block is rotated by the motor drive pivot being equipped at mounting bracket top, right clamping block is hinged with left clamping block and forms clamping groove, and it is equipped with rubber block buffering protection pole piece, the lithium ion battery pole piece detection device provided by the utility model has the advantages that pole piece overturning is automatically completed, after completing front detection in one side, it is overturned to the other side and carries out reverse detection, realizes the advantage of double-sided full detection.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion battery electrodes, and in particular to a lithium-ion battery electrode testing device. Background Technology

[0002] Lithium-ion batteries, as the mainstream electrochemical energy storage devices, are widely used in new energy vehicles, consumer electronics, energy storage systems, and other fields. Their performance, safety, and cycle life largely depend on the uniformity of electrode materials and the precision of manufacturing processes. In the battery manufacturing process, the electrodes (including positive and negative electrodes) are core components, and their surface quality, coating thickness, edge alignment, presence of cracks or foreign matter, and other parameters directly affect the battery's capacity consistency, internal resistance distribution, and thermal stability. Currently, the inspection of lithium-ion battery electrodes mainly relies on manual visual inspection or traditional optical inspection equipment.

[0003] A lithium-ion battery electrode detection device, as disclosed in utility model patent application CN218067688U, includes a frame and a detection camera. A display screen is fixedly connected to the frame, and a conveyor belt is provided on the frame. An X-axis drive mechanism for moving the detection camera is provided on one side of the frame. A movable frame is connected to the X-axis drive mechanism, and a Y-axis drive mechanism for moving the detection camera is provided on the movable frame. A fixed rod is connected to the Y-axis drive mechanism, and a connecting seat is fixedly connected to the fixed rod. The detection camera is fixedly connected to the connecting seat. A baffle for positioning the battery electrode is provided on the other side of the frame, and a push mechanism is provided on the same side of the frame, with a push plate connected to the push mechanism.

[0004] The aforementioned device uses a fixed camera and light source combination, which lacks the ability to simultaneously detect both sides of the electrode, potentially affecting the accuracy of detecting the battery electrode.

[0005] Therefore, it is necessary to provide a new lithium-ion battery electrode detection device to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a lithium-ion battery electrode detection device.

[0007] The lithium-ion battery electrode testing device provided by this utility model includes a conveying assembly, a testing assembly fixedly connected to the top of the conveying assembly, and a pushing assembly fixedly connected to the top end of the conveying assembly. Two conveying assemblies, a testing assembly, and a pushing assembly are symmetrically arranged on the left and right sides of a flipping assembly. The flipping assembly includes a mounting frame, a motor, a mounting groove, a rotating shaft, a left clamping block, a right clamping block, a stop block, and a clamping groove. Two conveying assemblies, a testing assembly, and a pushing assembly are symmetrically arranged on the left and right sides of the mounting frame. A mounting bracket is located at the top center of the mounting frame. In slot two, one end of the mounting bracket is fixedly connected to one end of the motor, the output end of the motor is fixedly connected to one end of the rotating shaft, the other end of the rotating shaft extends to one side of the mounting slot, the outer wall of the rotating shaft is rotatably connected to the inner wall of the mounting bracket, the outer wall of the rotating shaft is fixedly connected to the inner wall of the right clamping block, one side of the right clamping block is rotatably connected to one side of the left clamping block, the side of the right clamping block facing the left clamping block is fixedly connected to one side of the abutment block, and a clamping groove is opened at one end of both the right clamping block and the left clamping block, and rubber blocks are fixedly connected to the top and bottom of the clamping groove.

[0008] Preferably, the two left clamping blocks, right clamping blocks, abutment blocks, and clamping grooves are symmetrically arranged at both ends of the mounting groove two.

[0009] Preferably, the conveying assembly includes a bracket, support legs, and a conveyor belt. A detection component is fixedly connected to the top of the bracket, a pushing component is fixedly connected to the top end of the bracket, a conveyor belt is fixedly connected to both sides of the inner wall of the bracket, and multiple support legs are fixedly connected to the bottom of the bracket.

[0010] Preferably, a partition plate is installed at the top center of the conveyor belt, a conveying groove is opened at the end of the partition plate, and a collection box is placed at the end of the conveyor belt.

[0011] Preferably, the pushing assembly includes a mounting groove, a mounting plate, a cylinder, and a push plate. The top end of the bracket has a mounting groove, which is located on the side of the output groove. One side of the mounting groove is fixedly connected to one side of the mounting plate, the top of the mounting plate is fixedly connected to the bottom of the cylinder, and the output end of the cylinder is fixedly connected to one side of the push plate.

[0012] Preferably, the detection assembly includes an L-shaped frame, a slide rail, a slider, a fixing plate, a second cylinder, a second mounting plate, and an image acquisition device. The top of the bracket is fixedly connected to the bottom of the L-shaped frame, the bottom of the slide rail is fixedly connected to the top of the L-shaped frame, the top of the slide rail is slidably connected to the bottom of the slider, the top of the slider is fixedly connected to the bottom of the fixing plate, the top of the fixing plate is fixedly connected to the bottom of the second cylinder, the output end of the second cylinder is fixedly connected to the bottom of the second mounting plate, and the top of the second mounting plate is fixedly connected to the bottom of the image acquisition device.

[0013] Compared with related technologies, the lithium-ion battery electrode inspection device provided by this utility model has the following beneficial effects: The electrode is automatically flipped by the flipping assembly (the rotating shaft is driven by a motor to rotate, which in turn drives the right clamping block and the left clamping block to rotate. The left clamping block and the right clamping block are connected by rotation to form an openable clamping structure. Rubber blocks are provided in the clamping groove to provide flexible clamping force and prevent metal contact from scratching the electrode coating. The abutment block is used for limiting and ensuring that the electrode does not fall off or shift during the flipping process). After the front inspection is completed on one side, it is flipped to the other side for the reverse inspection, realizing double-sided full inspection. Two conveying assemblies, inspection assemblies and pushing assemblies are symmetrically arranged on both sides of the flipping assembly. After inspection at the left station, the electrode is flipped to the right station for inspection. While one station is inspecting, the other station is preparing the next electrode, forming an efficient process of "inspection, flipping, and re-inspection". Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the lithium-ion battery electrode detection device provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the conveying assembly. Figure 3 for Figure 1 The diagram shows the structure of the pushing component; Figure 4 for Figure 1 The diagram shows the structure of the detection component. Figure 5 for Figure 1 The diagram shows the structure of the flipping component; Figure 6 for Figure 1 The diagram shows the structure of the clamping assembly. The following are the labels in the diagram: 1. Bracket; 2. Support leg; 3. Conveyor belt; 4. Divider plate; 5. Conveying trough; 6. Collection box; 7. Mounting slot one; 8. Mounting plate one; 9. Cylinder one; 10. Push plate; 11. L-shaped frame; 12. Slide rail; 13. Slider; 14. Fixing plate; 15. Cylinder two; 16. Mounting plate two; 17. Image acquisition device; 18. Mounting frame; 19. Motor; 20. Mounting slot two; 21. Rotating shaft; 22. Left clamping block; 23. Right clamping block; 24. Abutment block; 25. Clamping groove. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 ,in, Figure 1 A schematic diagram of a preferred embodiment of the lithium-ion battery electrode detection device provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the conveying assembly. Figure 3 for Figure 1 The diagram shows the structure of the pushing component; Figure 4 for Figure 1 The diagram shows the structure of the detection component. Figure 5 for Figure 1 The diagram shows the structure of the flipping component; Figure 6 for Figure 1 The diagram shows the structure of the clamping assembly.

[0017] In the specific implementation process, such as Figure 1-4 As shown, this utility model provides a lithium-ion battery electrode detection device including a conveying assembly. The conveying assembly includes a bracket 1, support legs 2, and a conveyor belt 3. A detection assembly is fixedly connected to the top of the bracket 1, and a pushing assembly is fixedly connected to the top end of the bracket 1. The conveyor belt 3 is fixedly connected to both sides of the inner wall of the bracket 1, and multiple support legs 2 are fixedly connected to the bottom of the bracket 1. A partition plate 4 is installed at the top center of the conveyor belt 3, and a conveying groove 5 is opened at the end of the partition plate 4. A collection box 6 is placed at the end of the conveyor belt 3. The pushing assembly includes a mounting groove 7, a mounting plate 8, a cylinder 9, and a push plate 10. The mounting groove 7 is opened at the top end of the bracket 1 and is located on the side of the output groove. One side of the mounting groove 7 is fixedly connected to one side of the mounting plate 8, and the top of the mounting plate 8 is fixedly connected to the cylinder. At the bottom of cylinder 19, the output end of cylinder 19 is fixedly connected to one side of push plate 10. The detection assembly includes L-shaped frame 11, slide rail 12, slider 13, fixed plate 14, cylinder 2 15, mounting plate 2 16 and image acquisition device 17. The top of bracket 1 is fixedly connected to the bottom of L-shaped frame 11. The bottom of the top of L-shaped frame 11 is fixedly connected to the bottom of slide rail 12. The top of slide rail 12 is slidably connected to the bottom of slider 13. The top of slider 13 is fixedly connected to the bottom of fixed plate 14. The top of fixed plate 14 is fixedly connected to the bottom of cylinder 2 15. The output end of cylinder 2 15 is fixedly connected to the bottom of mounting plate 2 16. The top of mounting plate 2 16 is fixedly connected to the bottom of image acquisition device 17. Two conveying assemblies, detection assemblies and pushing assemblies are symmetrically arranged on the left and right sides of flipping assembly. It should be noted that the image acquisition device 17 includes an industrial camera, lens, and ring LED light source; the sensor triggers the cylinder 15 to press down, and the image is analyzed by the processor after acquisition; the conveyor trough 5 is used to guide the unqualified electrode sheets after processing and analysis into the other side of the conveyor belt 3, and finally fall into the collection box 6 at the end of the conveyor belt 3; the slide rail 12 is horizontally installed on the top of the crossbeam of the L-shaped frame 11, and the slider 13 drives the vertical column to connect to the fixed plate 14; the cylinder 15 drives the mounting plate 16 to move up and down to adjust the height of the image acquisition device 17 to adapt to electrode sheets of different thicknesses or to avoid the conveying process; the cylinder 9 pushes the push plate 10 to send the unqualified electrode sheets after processing and analysis into the other side of the conveyor belt 3; a photoelectric sensor is provided at the end of the conveyor belt 3 to detect the electrode sheet arrival signal and trigger the pushing and detection actions; the image acquisition device 17 is connected to the image processing unit to automatically identify defects such as edge burrs, coating defects, and foreign objects on the electrode sheets; after the left side inspection is completed, the flipping component flips the electrode sheet 180° and sends it to the right side station for reverse inspection, realizing double-sided full inspection.

[0018] In the specific implementation process, refer to Figure 5-6 As shown, this utility model provides a lithium-ion battery electrode detection device. The flipping assembly includes a mounting frame 18, a motor 19, a second mounting groove 20, a rotating shaft 21, a left clamping block 22, a right clamping block 23, a stop block 24, and a clamping groove 25. Two conveying components, a detection component, and a pushing component are symmetrically arranged on the left and right sides of the mounting frame 18. The mounting frame 18 has a second mounting groove 20 at the top center. One end of the mounting frame 18 is fixedly connected to one end of the motor 19, and the output end of the motor 19 is fixedly connected to one end of the rotating shaft 21. The other end of the rotating shaft 21 extends to the mounting plate. On one side of the groove, the outer wall of the rotating shaft 21 is rotatably connected to the inner wall of the mounting bracket 18, the outer wall of the rotating shaft 21 is fixedly connected to the inner wall of the right clamping block 23, one side of the right clamping block 23 is rotatably connected to one side of the left clamping block 22, and the side of the right clamping block 23 facing the left clamping block 22 is fixedly connected to one side of the abutment block 24. A clamping groove 25 is provided at one end of both the right clamping block 23 and the left clamping block 22. Rubber blocks are fixedly connected to the top and bottom of the clamping groove 25. The two left clamping blocks 22, the right clamping block 23, the abutment block 24 and the clamping groove 25 are symmetrically arranged at both ends of the mounting groove 20. It should be noted that the rotating shaft 21 is rotatably connected to the inner wall of the mounting bracket 18 via bearings to ensure smooth rotation; the left clamping block 22 and the right clamping block 23 are hinged together by a hinge shaft to form an openable clamping structure; the clamping groove 25 is a vertical through groove used to clamp the edges of both ends of the electrode sheet, and the rubber block provides flexible clamping force; the stop block 24 is used to limit the rotation angle of the left clamping block 22 to ensure that the clamping is in place and to prevent the electrode sheet from slipping off; when the electrode sheet is delivered to the position, the motor 19 starts and drives the rotating shaft 21 to rotate 180°, and the left clamping block 22 and the right clamping block 23 close and clamp, completing the automatic flipping; the rubber block on the inner wall of the clamping groove 25 effectively prevents the metal clamping block from scratching the electrode sheet coating or substrate, and is suitable for aluminum foil or copper foil electrode sheets; after the front inspection is completed at the left station, the flipping component flips the electrode sheet and sends it to the right station for reverse inspection, realizing fully automatic double-sided inspection; the motor 19 is controlled by a PLC controller and is linked with the conveyor belt, the pushing cylinder, and the image acquisition equipment to realize full-process automation.

[0019] The working principle of this utility model is as follows: The lithium-ion battery electrode to be tested is placed on the left side of the conveyor belt 3 of the first conveyor assembly, and the conveyor belt 3 drives the electrode to move forward; the separator 4 is used to distinguish between good and bad electrode sheets. When the electrode sheet moves to the bottom of the detection assembly, the photoelectric sensor detects the electrode sheet's positioning signal, and the control system issues a command to stop the conveyor belt, achieving precise positioning; the cylinder 15 drives the mounting plate 16 to press down, driving the image acquisition device 17 to descend vertically along the slide rail 12, and the industrial camera is assisted by a ring LED light source. The system performs high-definition imaging of the front of the electrode sheet; the image is transmitted to the image processing unit in real time; the image processing unit performs edge detection and grayscale analysis on the acquired image, and automatically identifies defects such as burrs, coating defects, and foreign objects; if it is determined to be a defective product, the system marks it and prepares for sorting; cylinder 9 pushes push plate 10 to push the electrode sheet determined to be defective into conveyor trough 5, so that the defective electrode sheet enters the right side of conveyor trough 5 and finally enters collection box 6; the electrode sheet determined to be good continues to move from conveyor belt 3 to flipping assembly. After it is in place, motor 19 starts and drives rotating shaft 21. Rotate 180° to smoothly flip the electrode; the left clamp 22 and right clamp 23 close under the action of the hinge structure and the stop block 24, and the rubber block provides flexible clamping force to prevent damage to the electrode; after flipping, the electrode is sent into the second conveyor assembly area, and automatically enters the conveyor belt 3 due to the inertia of the conveyor belt 3. When the electrode runs to the bottom of the detection assembly, the photoelectric sensor detects the electrode positioning signal, and the control system issues a command to stop the conveyor belt, achieving precise positioning; cylinder 2 15 drives the mounting plate 2 16 to press down, driving the image acquisition device 17 vertically down along the slide rail 12. The industrial camera, aided by a ring LED light source, performs high-definition imaging of the front of the electrode sheet; the image is transmitted to the image processing unit in real time; the image processing unit performs edge detection and grayscale analysis on the acquired image, and automatically identifies defects such as burrs, coating defects, and foreign objects; if it is determined to be a defective product, the system marks it and prepares for sorting; cylinder 9 pushes push plate 10, pushing the electrode sheet determined to be defective into conveyor trough 5, so that the defective electrode sheet enters the right side of conveyor trough 5 and finally enters collection box 6, while the electrode sheet determined to be good continues to be transported to the next process by conveyor belt 3.

[0020] This lithium-ion battery electrode inspection device has the following advantages: It automatically completes a 180° flip via a flipping assembly (motor 19, rotating shaft 21, left clamping block 22, right clamping block 23). The first side is inspected, then the second side is inspected, avoiding the low efficiency and missed inspection risks associated with manual flipping. It also avoids blind spots in single-sided inspection, improving battery yield and safety. After inspection, it determines whether the product is good or defective in real time. Defective products are directly pushed into the collection box 6 by the push plate 10 and the conveying trough 5, while good products continue to flow to the next process, shortening the process flow and improving the automation level of the entire line. The clamping trough 25 is equipped with rubber blocks to prevent damage to the aluminum or copper foil substrate during clamping. The abutment block 24 has a limiting hinge structure, ensuring stable clamping and preventing detachment during flipping. It is suitable for electrode sheets of different thicknesses (e.g., 50~200μm), avoiding secondary defects caused by clamping damage and ensuring product yield. The separator plate 4 not only distinguishes the paths of good and defective products, but the conveying trough 5 also guides defective products into the right-side collection area, preventing mixing and ensuring sorting accuracy.

[0021] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lithium-ion battery electrode testing device, comprising a conveying assembly, a testing assembly fixedly connected to the top of the conveying assembly, and a pushing assembly fixedly connected to the top end of the conveying assembly, wherein the two conveying assemblies, the testing assembly, and the pushing assembly are symmetrically arranged on the left and right sides of a flipping assembly, characterized in that, The flipping assembly includes a mounting frame (18), a motor (19), a second mounting slot (20), a rotating shaft (21), a left clamping block (22), a right clamping block (23), a stop block (24), and a clamping groove (25). The two conveying components, the detection components, and the pushing components are symmetrically arranged on the left and right sides of the mounting frame (18). The mounting frame (18) has a second mounting slot (20) at the top center. One end of the mounting frame (18) is fixedly connected to one end of the motor (19). The output end of the motor (19) is fixedly connected to one end of the rotating shaft (21). The rotating shaft (22) 1) The other end extends to one side of the mounting groove. The outer wall of the rotating shaft (21) is rotatably connected to the inner wall of the mounting bracket (18). The outer wall of the rotating shaft (21) is fixedly connected to the inner wall of the right clamping block (23). One side of the right clamping block (23) is rotatably connected to one side of the left clamping block (22). The side of the right clamping block (23) facing the left clamping block (22) is fixedly connected to one side of the abutment block (24). One end of the right clamping block (23) and the left clamping block (22) are both provided with clamping grooves (25). The top and bottom of the clamping grooves (25) are fixedly connected with rubber blocks.

2. The lithium-ion battery electrode testing device according to claim 1, characterized in that, The two left clamping blocks (22), right clamping blocks (23), abutment blocks (24) and clamping grooves (25) are symmetrically arranged at both ends of the mounting groove (20).

3. The lithium-ion battery electrode testing device according to claim 2, characterized in that, The conveying assembly includes a bracket (1), support legs (2) and a conveyor belt (3). A detection component is fixedly connected to the top of the bracket (1), a pushing component is fixedly connected to the top end of the bracket (1), a conveyor belt (3) is fixedly connected to both sides of the inner wall of the bracket (1), and multiple support legs (2) are fixedly connected to the bottom of the bracket (1).

4. The lithium-ion battery electrode testing device according to claim 3, characterized in that, A partition plate (4) is installed at the top center of the conveyor belt (3), a conveying groove (5) is opened at the end of the partition plate (4), and a collection box (6) is placed at the end of the conveyor belt (3).

5. The lithium-ion battery electrode testing device according to claim 4, characterized in that, The pushing assembly includes a mounting slot (7), a mounting plate (8), a cylinder (9), and a push plate (10). The top end of the bracket (1) is provided with a mounting slot (7). The mounting slot (7) is located on the side of the output slot. One side of the mounting slot (7) is fixedly connected to one side of the mounting plate (8). The top of the mounting plate (8) is fixedly connected to the bottom of the cylinder (9). The output end of the cylinder (9) is fixedly connected to one side of the push plate (10).

6. The lithium-ion battery electrode testing device according to claim 5, characterized in that, The detection assembly includes an L-shaped frame (11), a slide rail (12), a slider (13), a fixing plate (14), a second cylinder (15), a second mounting plate (16), and an image acquisition device (17). The top of the bracket (1) is fixedly connected to the bottom of the L-shaped frame (11). The bottom of the top of the L-shaped frame (11) is fixedly connected to the bottom of the slide rail (12). The top of the slide rail (12) is slidably connected to the bottom of the slider (13). The top of the slider (13) is fixedly connected to the bottom of the fixing plate (14). The top of the fixing plate (14) is fixedly connected to the bottom of the second cylinder (15). The output end of the second cylinder (15) is fixedly connected to the bottom of the second mounting plate (16). The top of the second mounting plate (16) is fixedly connected to the bottom of the image acquisition device (17).

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