Full-automatic high-speed detection equipment for battery case
By combining a turret and a horizontal conveyor line with an AI-powered visual appearance defect detection device, the problems of insufficient battery casing inspection speed and production capacity have been solved, achieving efficient and accurate battery casing inspection.
Patent Information
- Application Number
- CN202422383697.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Existing battery casing inspection equipment is insufficient in terms of inspection speed and capacity, and it is difficult to accurately control the position of the battery casing, resulting in poor imaging quality.
A combination of a turret and a horizontal conveyor line is adopted, the turret is used for stable and efficient conveying, and the self-rotation detection of the battery shell in the recess is designed. Combined with the AI visual appearance defect detection device, fully automatic and high-speed inspection of the battery shell is achieved.
The detection speed has been increased to 240 samples per minute, improving detection capacity, and the accuracy and efficiency of detection have been enhanced through AI vision devices.
Smart Images

Figure CN223485996U_ABST
Abstract
Description
Technical Field
[0001] This invention is a fully automatic high-speed testing device for battery casings, which can be used to test the casings of civilian AA and AAA batteries. Background Technology
[0002] In the production and manufacturing process of existing civilian battery cases, it is inevitable that some products with poor appearance will be produced, such as water stains, dents, scratches and other defects.
[0003] Currently, when inspecting the outer bottom surface of battery casings, the casings are typically placed horizontally on a conveyor belt, with industrial cameras positioned on either side for imaging. However, because the battery casings are cylindrical, they are prone to swaying during conveyor belt operation, making precise position control difficult and resulting in low image quality from the industrial cameras. Chinese patent application CN105910645A, published on August 31, 2016, discloses an automated inspection line method for 18650 lithium batteries. This method includes a lithium battery appearance and size inspection module and an automatic transfer device. The lithium batteries pass sequentially through various inspection stations under the action of the transfer device. The PLC controls the synchronous and coordinated actions of each inspection station to achieve surface inspection of the lithium batteries. However, this requires a transfer device to change between inspection stations, resulting in low efficiency and low inspection capacity. Furthermore, when inspecting the circumferential surface of the battery casing, a rolling fixture is required, complicating the equipment design.
[0004] Therefore, it is necessary to design a new high-speed battery casing testing device to improve testing speed, enhance testing capabilities, and increase testing capacity. Utility Model Content
[0005] The purpose of this invention is to provide a fully automated high-speed battery casing testing device to improve testing capacity.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a fully automatic high-speed battery casing testing device, including a battery casing turret mechanism and a battery casing horizontal conveying mechanism; the battery casing turret mechanism includes a rotating support turret, with a feeding station above the turret connected to the battery casing feeding mechanism, and the battery casing horizontal conveying mechanism below the turret, so that the turret is connected to the battery casing horizontal conveying mechanism.
[0007] The outer periphery of the turret is provided with recesses for inserting battery housings, and the turret is provided with a negative pressure chamber connected to each of the recesses; a turret roller is provided on each side of each recess, and the battery housing is supported by the turret roller. One end of each turret roller extends out of the axial end face of the turret and is connected to a pulley, and the pulleys of each turret roller are on the same plane.
[0008] The turret is also provided with a circumferential surface inspection station; when the turret rotates, each recess rotates between the feeding station and the circumferential surface inspection station.
[0009] After a belt is tensioned by passing over the pulleys on the turret rollers on both sides of the recess of the circumferential surface inspection station, it is driven by a drive wheel connected to a servo motor to drive the battery case in the recess of the circumferential surface inspection station to rotate.
[0010] The circumferential surface inspection station is equipped with a circumferential surface line scan inspection device facing the outer side of the battery casing to perform line scan inspection on the outer circumferential surface of the battery casing.
[0011] In the above scheme, a bottom inspection station is also provided corresponding to the turret. A first bottom inspection device is provided on the bottom surface of the battery case at the bottom inspection station to inspect the bottom surface of the battery case. The belt also passes around the pulleys on the turret rollers on both sides of the recess of the bottom inspection station to drive the battery case in the recess of the bottom inspection station to rotate.
[0012] In the above scheme, the outer bottom inspection station and the circumferential surface inspection station are set up adjacent to each other.
[0013] In the above scheme, a mouth detection station is provided corresponding to the horizontal conveying mechanism of the battery casing, and a battery casing mouth detection device is provided at the mouth detection station to detect the mouth of the battery casing.
[0014] In the above scheme, the first outsole detection device is an AI visual appearance defect detection device.
[0015] In the above scheme, a second outer bottom inspection station is also provided corresponding to the horizontal conveying mechanism of the battery casing. The second outer bottom inspection station is provided with a second outer bottom inspection device facing the outer bottom surface of the battery casing to inspect the outer bottom surface of the battery casing.
[0016] In the above scheme, a defective product rejection station is also provided corresponding to the horizontal conveying mechanism of the battery casing, and a defective product rejection device is provided at the defective product rejection station.
[0017] The advantages of this utility model are as follows:
[0018] This invention uses a combination of a turret and a horizontal conveyor line to transport battery casings. It takes advantage of the stability and efficiency of the turret, sets up the circumferential surface inspection station corresponding to the turret, and makes special designs on the turret so that the battery casings in the recessed area can rotate to cooperate with the inspection. The inspection speed reaches 240 units / min, which improves the inspection capacity. Attached Figure Description
[0019] Figure 1 This is a schematic front view of the structure of an embodiment of the present utility model;
[0020] Figure 2 This is a three-dimensional schematic diagram of the main structure of the embodiment of this utility model. Figure 1 ;
[0021] Figure 3 This is a three-dimensional schematic diagram of the main structure of the embodiment of this utility model. Figure 2 ;
[0022] Figure 4 This is a three-dimensional schematic diagram of the battery casing turret mechanism and the battery casing feeding mechanism according to an embodiment of the present utility model;
[0023] Figure 5 This is a three-dimensional schematic diagram of the battery casing feeding mechanism and turret in an embodiment of the present utility model.
[0024] Figure 6 This is a three-dimensional schematic diagram of the battery casing turret mechanism according to an embodiment of the present utility model;
[0025] Figure 7 This is a three-dimensional schematic diagram of the connection between the turret of the battery casing turret mechanism and the belt and servo motor drive in an embodiment of the present utility model.
[0026] Figure 8 This is a three-dimensional schematic diagram of the horizontal conveying mechanism for the battery casing according to an embodiment of the present utility model;
[0027] Figure 9 This is a schematic diagram of the first outsole detection device in an embodiment of the present invention.
[0028] In the attached diagrams above:
[0029] 1. Battery casing turret mechanism; 11. Turret; 111. Recess; 112. Pulley; 12. Turret drive assembly; 121. Cam divider; 122. Main drive motor;
[0030] 2. Battery casing horizontal conveying mechanism; 21. Conveyor timing belt; 22. Conveyor main drive wheel; 23. Conveyor driven wheel; 24. Conveyor belt left and right guides; 25. Conveyor belt upper guide; 26. Transmission mechanism;
[0031] 3. Belt;
[0032] 4. Servo motor; 41. Drive wheel; 42. First driven wheel; 43. Second driven wheel;
[0033] 5. First outsole detection device; 51. Camera; 52. Light source;
[0034] 6. Circumferential surface line scanning detection device;
[0035] 7. Battery casing opening detection device;
[0036] 8. Second outsole testing device;
[0037] 9. Defective product rejection device.
[0038] A1. Feeding station; A2. Outsole inspection station; A3. Circumferential surface inspection station; A4. Opening inspection station; A5. Second outsole inspection station; A6. Insole inspection station; A7. Defective product rejection station. Detailed Implementation
[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0040] The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the embodiments of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.
[0041] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.
[0042] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.
[0043] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.
[0044] The terms used herein, unless otherwise specified, generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing this case.
[0045] The terms “front,” “back,” “up,” and “down” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not used to limit the specific direction of the protection scheme and its actual implementation.
[0046] Example: A fully automated high-speed testing device for battery casings, see [link / reference] Figure 1-9 As shown:
[0047] This fully automated high-speed testing equipment for battery casings, see [link / reference]. Figure 1-3As shown, the device includes a battery casing turret mechanism 1 and a battery casing horizontal conveying mechanism 2. The battery casing turret mechanism 1 includes a rotating turret 11 with a feeding station A1 above it for connecting to a battery casing feeding mechanism, and the battery casing horizontal conveying mechanism 2 below it, so that the turret 11 is connected to the battery casing horizontal conveying mechanism 2.
[0048] See Figure 3-7 As shown, the outer periphery of the turret 11 is provided with recesses 111 for inserting battery housings, and a negative pressure chamber is provided inside the turret to connect to each of the recesses 111. A turret roller is provided on each side of each recess 111 on the turret 11, supporting the battery housing. One end of each turret roller extends out of the axial end face of the turret and is connected to a pulley 112, and the pulleys 112 of all the turret rollers are on the same plane. Figure 5-7 As shown,
[0049] See Figure 1-7 As shown, the turret 11 is also provided with an outer bottom inspection station A2 and a circumferential surface inspection station A3. When the turret 11 rotates, each recess 111 rotates between the feeding station A1, the outer bottom inspection station A2 and the circumferential surface inspection station A3.
[0050] See Figure 7 As shown, a belt 3, after being tensioned by the pulleys 112 on the turret rollers on both sides of the recess 111 of the outsole inspection station A2 and the circumferential surface inspection station A3, is driven by a drive wheel 41 connected to a servo motor 4 to drive the battery casing inside the recess 111 of the outsole inspection station A2 and the circumferential surface inspection station A3 to rotate, specifically as follows: Figure 7 For example, a first driven pulley 42 and a second driven pulley 43 are also provided. The belt 3 is tensioned around the pulleys 112, the first driven pulley 42, the second driven pulley 43, and the driving pulley 41 on the turret rollers on both sides of the recess 111 of the outsole inspection station A2 and the circumferential surface inspection station A3, to ensure that the belt is in close contact with the pulleys 112 on the turret rollers on both sides of the recess 111 of the outsole inspection station A2 and the circumferential surface inspection station A3 to achieve the transmission purpose. The same transmission effect can be achieved by replacing the belt and pulleys with synchronous pulleys. Preferably, the outsole inspection station A2 and the circumferential surface inspection station A3 are arranged adjacent to each other to facilitate the design and driving of the belt 3.
[0051] See Figure 9 As shown, the outer bottom inspection station A2 is equipped with a first outer bottom inspection device 5 facing the outer bottom surface of the battery case to inspect the outer bottom surface of the battery case. Preferably, the first outer bottom inspection device 5 adopts an AI visual appearance defect detection device, which includes a camera 51 for the first outer bottom and a light source 52 for the outer bottom.
[0052] See Figure 1-3as well as Figure 8 As shown, the circumferential surface inspection station A3 is equipped with a circumferential surface line scan inspection device 6 facing the outer side of the battery case to perform line scan inspection on the outer circumferential surface of the battery case.
[0053] See Figure 1-3 As shown, the horizontal conveying mechanism 2 for the battery case is provided with an opening detection station A4, which is equipped with a battery case opening detection device 7 to detect the opening of the battery case; the horizontal conveying mechanism 2 for the battery case is also provided with a second outer bottom detection station A5, which is equipped with a second outer bottom detection device 8 facing the outer bottom surface of the battery case to detect the outer bottom surface of the battery case.
[0054] The battery casing horizontal conveying mechanism 2 is also provided with a defective product rejection station A7, which is equipped with a defective product rejection device 9.
[0055] For example, Figure 1-3 As shown, there are two sets of second outsole inspection stations A5 and second outsole inspection devices 8. One is used to detect one type of defect on the outsole of the battery case (such as dents), and the other is used to detect another type of defect on the outsole of the battery case (such as scratches). More second outsole inspection stations A5 can be designed as needed.
[0056] For example, Figure 1-3 As shown, the battery casing horizontal conveying mechanism 2 is provided with an inner bottom detection station A6, and the inner bottom detection station A6 is provided with a battery casing inner bottom detection device.
[0057] For example, Figure 1-3 As shown, there are two sets of defective product rejection stations A7 and defective product rejection devices 9. One set is located immediately after the turret and is controlled by the detection structure of the first outer bottom detection device 5 and the circumferential surface line scan detection device 6 to reject defective products into the pipeline. The other set is located at the end and is controlled by the battery case opening detection device 7 and the second outer bottom detection device 8 to reject defective products into the pipeline.
[0058] See Figure 6 As shown, the battery casing turret mechanism 1 also includes a turret drive assembly 12, which specifically consists of a cam divider 121 and a main drive motor 122, thereby driving the rotation of the turret 11.
[0059] See Figure 8 As shown, the battery casing horizontal conveying mechanism 2 is specifically a synchronous belt conveying mechanism, which includes: a conveying synchronous belt 21, a conveying main drive wheel 22, a conveying driven wheel 23, left and right guides for the conveying belt 24, an upper guide for the conveying belt 25, a strong magnet inside the pipeline, a strong magnet cover plate, and a strong magnet.
[0060] See Figure 3As shown, the main drive wheel 22 is connected to the output end of the cam divider 121 via the transmission mechanism 26, thereby driving synchronously with the turret.
[0061] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A fully automatic high-speed testing device for battery casings, characterized in that: It includes a battery casing turret mechanism (1) and a battery casing horizontal conveying mechanism (2); the battery casing turret mechanism (1) includes a rotating support turret (11), a feeding station (A1) connected to the battery casing feeding mechanism is provided above the turret (11), and the battery casing horizontal conveying mechanism (2) is provided below the turret (11), so that the turret (11) is connected to the battery casing horizontal conveying mechanism (2); The outer periphery of the turret (11) is provided with a recess (111) for inserting the battery case, and a negative pressure chamber is provided inside the turret to connect to each of the recesses (111); a turret roller is provided on each side of each recess (111) on the turret (11) to support the battery case, and one end of each turret roller extends out of the axial end face of the turret and is connected to a pulley (112), and the pulleys (112) of each turret roller are on the same plane; The turret (11) is also provided with a circumferential surface inspection station (A3); when the turret (11) rotates, each recess (111) rotates between the feeding station (A1) and the circumferential surface inspection station (A3); After a belt (3) passes over the pulleys (112) on the turret rollers on both sides of the recess (111) of the circumferential surface detection station (A3) and is tensioned, it is driven by a drive wheel (41) connected to the servo motor (4) to drive the battery case in the recess (111) of the circumferential surface detection station (A3) to rotate. The circumferential surface inspection station (A3) is equipped with a circumferential surface line scan inspection device (6) facing the outer side of the battery case to perform line scan inspection on the outer circumferential surface of the battery case.
2. The fully automatic high-speed testing equipment for battery casings according to claim 1, characterized in that: The turret (11) is also provided with an outer bottom inspection station (A2). The outer bottom inspection station (A2) is provided with a first outer bottom inspection device (5) facing the outer bottom surface of the battery case to inspect the outer bottom surface of the battery case. The belt (3) also passes around the pulleys (112) on the turret rollers on both sides of the recess (111) of the outer bottom inspection station (A2) to drive the battery case in the recess (111) of the outer bottom inspection station (A2) to rotate.
3. The fully automatic high-speed testing equipment for battery casings according to claim 2, characterized in that: The outer bottom inspection station (A2) and the circumferential surface inspection station (A3) are set up adjacent to each other.
4. The fully automatic high-speed testing equipment for battery casings according to claim 2, characterized in that: The first outsole detection device (5) is an AI visual appearance defect detection device.
5. The fully automatic high-speed testing equipment for battery casings according to claim 1, characterized in that: The battery casing horizontal conveying mechanism (2) is provided with an opening detection station (A4), and the opening detection station (A4) is provided with a battery casing opening detection device (7) to detect the opening of the battery casing.
6. The fully automatic high-speed testing equipment for battery casings according to claim 1, characterized in that: The battery casing horizontal conveying mechanism (2) is also provided with a second outer bottom inspection station (A5), and a second outer bottom inspection device (8) is provided on the outer bottom surface of the battery casing to inspect the outer bottom surface of the battery casing.
7. The fully automatic high-speed testing equipment for battery casings according to claim 1, characterized in that: The battery casing horizontal conveying mechanism (2) is also provided with a defective product rejection station (A7), which is equipped with a defective product rejection device (9).
Citation Information
Patent Citations
Type 18650 lithium ion battery's automatic detection line and the method
CN105910645A