Lithium battery pole piece coating thickness detection device
By designing a lithium battery electrode coating thickness detection device, automated feeding detection and rapid sorting and collection of lithium battery electrodes were achieved, solving the problem of low detection efficiency in existing technologies and improving detection efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-17
AI Technical Summary
Existing technologies cannot achieve automated feeding, inspection, and rapid sorting and collection of lithium battery electrode sheets, resulting in low inspection efficiency.
A lithium battery electrode coating thickness detection device was designed, comprising a detection platform, a lithium battery transfer mechanism, a positioning mechanism, and a thickness detection mechanism. The device achieves automated feeding, positioning detection, and collection of qualified products through a laser thickness detector.
It has enabled automated feeding, inspection, and rapid sorting and collection of lithium battery electrode sheets, improving inspection efficiency and accuracy, and reducing production losses.
Smart Images

Figure CN224004387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery testing technology, specifically a lithium battery electrode coating thickness testing device. Background Technology
[0002] In the international context of energy conservation and emission reduction, countries around the world are making great efforts to develop and apply green energy. Lithium-ion batteries, as a high-performance rechargeable green battery with high energy density, long cycle life, good rate performance, and environmental friendliness and pollution-free properties, have been increasingly used in various electronic products due to their advantages such as high single-cell voltage, large capacity, small size, light weight, and wide operating temperature range. The research and development of lithium-ion power batteries has received high attention.
[0003] Chinese patent document CN208282785U discloses a lithium battery testing device, particularly a lithium battery electrode coating thickness testing device. The device includes a reciprocating lead screw, a linear guide device, a laser sensor, a frame, and a motor. The two ends of the reciprocating lead screw are fixed to the frame via bearing seats. A sliding seat on the reciprocating lead screw is connected to a fixed seat, which is mounted on the linear guide device. The fixed seat is equipped with a laser sensor. The reciprocating lead screw, linear guide device, fixed seat, and laser sensor are symmetrically located on the upper and lower surfaces of the lithium battery electrode. The motor is fixed to the outside of the frame and has two driving pulleys. The driving pulleys are connected to driven pulleys via belts, and the driven pulleys are mounted on one end of the reciprocating lead screw. This utility model provides a lithium battery electrode coating thickness testing device that can detect coating quality in real time, provides indirect measurement, has no impact on the electrode, causes no production loss, has high measurement accuracy, fast measurement speed, is easy to use, and is low in cost.
[0004] The existing technologies mentioned above cannot automate the feeding and inspection of lithium battery electrode sheets, nor can they quickly sort and collect qualified products. Therefore, it is necessary to develop a lithium battery electrode sheet coating thickness detection device. Utility Model Content
[0005] The purpose of this utility model is to provide a lithium battery electrode coating thickness detection device to solve the problem mentioned in the background art that the prior art cannot perform automated feeding and detection of lithium battery electrodes and cannot quickly sort and collect qualified products.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery electrode coating thickness detection device, comprising a detection machine, a lithium battery transfer mechanism mounted on the upper surface of the detection machine, a lithium battery storage tray mounted on one side of the lithium battery transfer mechanism, a qualified product collection box mounted on the other side of the lithium battery transfer mechanism, a positioning mechanism mounted on the upper surface of the detection machine, and a thickness detection mechanism mounted on one side of the positioning mechanism.
[0007] Preferably, the lithium battery transfer mechanism is used to transfer the lithium batteries stored on the lithium battery storage tray to the positioning mechanism for testing.
[0008] Preferably, the thickness detection mechanism is used to perform thickness detection on the lithium battery on the positioning mechanism, and the lithium battery transfer mechanism is used to transfer the qualified lithium battery to the qualified product collection box for storage.
[0009] Preferably, a fixed suction cup is installed on the lithium battery transfer mechanism, a drive motor is installed above the fixed suction cup, and the output end of the drive motor is connected to a control frame through a first rotating shaft.
[0010] Preferably, the upper end of the control frame is connected to a robotic arm via a second rotating shaft, the robotic arm is equipped with a fixing fixture, the front end of the fixing fixture is equipped with a cylinder assembly, and the output end of the cylinder assembly is connected to a fixing suction cup via a telescopic rod.
[0011] Preferably, a fixed frame is installed on the positioning mechanism, a positioning cylinder is installed on the fixed frame, and the output end of the positioning cylinder is fixedly connected to a pusher frame via a pusher rod.
[0012] Preferably, a servo motor is installed on the thickness detection mechanism, the output end of the servo motor is connected to a lead screw via a rotating shaft, a lead screw sleeve is installed on the surface of the lead screw, and a laser thickness detector is installed on the upper surface of the lead screw sleeve.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model, by installing a lithium battery transfer mechanism, can be used to transfer lithium batteries stored on a lithium battery storage tray to a positioning mechanism for testing. The lithium batteries can be pushed and fed by the material pushing mechanism on the positioning mechanism. Then, the thickness detection mechanism uses a movable and adjustable laser thickness detector to quickly locate and detect the coating thickness of the lithium battery electrode. Finally, the lithium battery transfer mechanism transfers the qualified lithium batteries to the qualified product collection box for storage. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a side view of the present invention.
[0017] Figure 3 This is a partial structural schematic diagram of the present invention.
[0018] In the diagram: 1. Inspection machine; 2. Lithium battery storage tray; 3. Lithium battery transfer mechanism; 4. Drive motor; 5. Qualified product collection box; 6. Thickness detection mechanism; 7. Positioning mechanism; 8. Fixed suction cup; 9. Telescopic rod; 10. Cylinder assembly; 11. Fixed clamp; 12. Robotic arm; 13. Second rotating shaft; 14. Control frame; 15. First rotating shaft; 16. Fixed frame; 17. Positioning cylinder; 18. Push rod; 19. Push frame; 20. Laser thickness gauge; 21. Lead screw sleeve; 22. Lead screw; 23. Servo motor. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Please see Figure 1-3 An embodiment of this utility model provides a lithium battery electrode coating thickness detection device, including a detection machine 1, a lithium battery transfer mechanism 3 installed on the upper surface of the detection machine 1, a lithium battery storage tray 2 installed on one side of the lithium battery transfer mechanism 3, a qualified product collection box 5 installed on the other side of the lithium battery transfer mechanism 3, a positioning mechanism 7 installed on the upper surface of the detection machine 1, and a thickness detection mechanism 6 installed on one side of the positioning mechanism 7.
[0021] Furthermore, the lithium battery transfer mechanism 3 is used to transfer the lithium batteries stored on the lithium battery storage tray 2 to the positioning mechanism 7 for testing. The thickness detection mechanism 6 is used to perform thickness detection on the lithium batteries on the positioning mechanism 7. The lithium battery transfer mechanism 3 is used to transfer the qualified lithium batteries to the qualified product collection box 5 for storage.
[0022] Furthermore, a fixed suction cup 8 is installed on the lithium battery transfer mechanism 3, and a drive motor 4 is installed above the fixed suction cup 8. The output end of the drive motor 4 is connected to the control frame 14 through the first rotating shaft 15. By turning on the drive motor 4, the first rotating shaft 15 is driven to rotate the control frame 14.
[0023] Furthermore, the upper end of the control frame 14 is connected to a robotic arm 12 via a second rotating shaft 13. The second rotating shaft 13 is also driven and controlled by a motor, thereby driving and controlling the robotic arm 12 to rotate. A fixed clamp 11 is installed on the robotic arm 12. A cylinder assembly 10 is installed at the front end of the fixed clamp 11. The output end of the cylinder assembly 10 is connected to a fixed suction cup 8 via a telescopic rod 9. By opening the cylinder assembly 10, the telescopic rod 9 is driven to drive the fixed suction cup 8 to attract and fix the lithium battery electrode, which facilitates the transfer of the lithium battery electrode.
[0024] Furthermore, a fixed frame 16 is installed on the positioning mechanism 7, and a positioning cylinder 17 is installed on the fixed frame 16. The output end of the positioning cylinder 17 is fixedly connected to the pusher frame 19 through the pusher rod 18. By opening the positioning cylinder 17, the pusher rod 18 is driven to move and position the lithium battery electrode sheet.
[0025] Furthermore, a servo motor 23 is installed on the thickness detection mechanism 6. The output end of the servo motor 23 is connected to a lead screw 22 via a rotating shaft. A lead screw sleeve 21 is installed on the surface of the lead screw 22. A laser thickness detector 20 is installed on the upper surface of the lead screw sleeve 21. By turning on the servo motor 23, the lead screw sleeve 21 can be driven to move the laser thickness detector 20 horizontally along the surface of the lead screw 22, thereby facilitating the laser thickness detector 20 to perform laser positioning thickness detection on the lithium battery electrode sheet on the pusher 19.
[0026] Working principle: During use, a lithium battery transfer mechanism 3 is installed on the upper surface of the testing machine 1. A lithium battery storage tray 2 is installed on one side of the lithium battery transfer mechanism 3, and a qualified product collection box 5 is installed on the other side. A positioning mechanism 7 is installed on the upper surface of the testing machine 1, and a thickness detection mechanism 6 is installed on one side of the positioning mechanism 7. The drive motor 4 is turned on to drive the first rotating shaft 15 to rotate the control frame 14. The second rotating shaft 13 is also driven by a motor, which drives the robot arm 12 to rotate. The cylinder assembly 10 is turned on to drive the telescopic rod 9 to move the fixed suction cup 8 to attract and fix the lithium battery electrode. The lithium battery transfer mechanism 3 facilitates the transfer of lithium battery electrodes. It is used to transfer the lithium batteries stored on the lithium battery storage tray 2 to the positioning mechanism 7 for inspection. By activating the positioning cylinder 17, the control push rod 18 is driven to move the push frame 19 to transfer and position the lithium battery electrodes. By activating the servo motor 23, the control screw sleeve 21 is driven to move the laser thickness detector 20 horizontally along the surface of the screw 22, thereby facilitating the laser thickness detector 20 to perform laser positioning and thickness inspection on the lithium battery electrodes on the push frame 19. Finally, the lithium battery transfer mechanism 3 transfers the qualified lithium batteries to the qualified product collection box 5 for storage.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lithium battery pole piece coating thickness detection device, comprising a detection machine table (1), characterized in that, The upper end surface of the detection machine (1) is provided with a lithium battery transfer mechanism (3), one side of the lithium battery transfer mechanism (3) is provided with a lithium battery storage tray (2), the other side of the lithium battery transfer mechanism (3) is provided with a qualified product collection box (5), the upper end surface of the detection machine (1) is provided with a positioning mechanism (7), one side of the positioning mechanism (7) is provided with a thickness detection mechanism (6).
2. The lithium battery pole piece coating thickness detection device according to claim 1, characterized in that: The lithium battery transfer mechanism (3) is used for transferring the lithium battery stored on the lithium battery storage tray (2) to the positioning mechanism (7) for detection work.
3. The lithium battery pole piece coating thickness detection device according to claim 1, characterized in that: The thickness detection mechanism (6) is used for thickness detection work of the lithium battery on the positioning mechanism (7), and the lithium battery transfer mechanism (3) is used for transferring the lithium battery after detection to the qualified product collection box (5) for storage.
4. The lithium battery pole piece coating thickness detection device according to claim 1, characterized in that: The lithium battery transfer mechanism (3) is provided with a fixed suction cup (8), a driving motor (4) is installed above the fixed suction cup (8), and the output end of the driving motor (4) is connected with a control frame (14) through a first rotating shaft (15).
5. The lithium battery pole piece coating thickness detection device according to claim 4, characterized in that: The upper end of the control frame (14) is connected with a mechanical hand (12) through a second rotating shaft (13), the mechanical hand (12) is provided with a fixed clamp (11), the front end of the fixed clamp (11) is provided with a cylinder assembly (10), and the output end of the cylinder assembly (10) is connected with the fixed suction cup (8) through a telescopic rod (9).
6. The lithium battery pole piece coating thickness detection device according to claim 1, characterized in that: The positioning mechanism (7) is provided with a fixed rack (16), the fixed rack (16) is provided with a positioning cylinder (17), and the output end of the positioning cylinder (17) is fixedly connected with a pushing frame (19) through a pushing rod (18).
7. The lithium battery pole piece coating thickness detection device according to claim 1, characterized in that: The thickness detection mechanism (6) is provided with a servo motor (23), the output end of the servo motor (23) is connected with a lead screw (22) through a rotating shaft, the surface of the lead screw (22) is provided with a lead screw sleeve (21), and the upper end surface of the lead screw sleeve (21) is provided with a laser thickness detector (20).
Citation Information
Patent Citations
Lithium - ion battery pole pieces coating thickness detection device
CN208282785U