Battery cell appearance detection device

Abstract

The utility model relates to a battery cell appearance detection device which comprises a feeding assembly used for transporting a battery cell to a detection position; the detection assembly can be movably arranged at the detection position along the extension direction of the battery cell, and the detection assembly can detect two adjacent side surfaces of the battery cell at the same time; and the clamping assembly has an overturning function, is arranged at the detection position and is used for receiving the battery cell conveyed by the feeding assembly and driving the battery cell to overturn along the axis so as to replace the detection surface of the battery cell. The feeding assembly transports the battery cell to the detection position, the clamping assembly receives the battery cell, the detection assembly moves in the extending direction of the battery cell and can detect the two adjacent side faces of the battery cell at the same time, after detection is completed, the clamping assembly drives the battery cell to turn over along the axis to replace the detection face, and the detection assembly moves again to complete detection of the two remaining side faces. And the four side surfaces of the battery cell can be detected only twice, so that the detection efficiency is improved while the cost is saved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery cell detection, and in particular, to a battery cell appearance detection device. Background Art

[0002] At present, lithium-ion batteries are increasingly used in mobile phones, notebooks, electric vehicles, etc., forming a huge industrial cluster. Among them, the battery cell is an intermediate product of various forms of lithium batteries, which can be assembled into batteries of different specifications through the pack process, such as lithium batteries for electric bicycles and lithium batteries for electric cars. Since the shell of the battery cell is a composite material with a relatively soft texture, many quality problems are reflected in the appearance of the battery cell after the battery cell is produced. Therefore, in the production process of the battery cell, it is necessary to take photos of the appearance of the battery cell. However, in the related technology, either only one camera device is set, although the cost is low, but the battery cell needs to be tested multiple times, which is inefficient; or four sets of camera devices are set, although the efficiency is fast, but the cost is high and cannot meet the current needs. Utility Model Content

[0003] The purpose of the present disclosure is to provide a battery cell appearance inspection device, which can solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a battery cell appearance inspection device, including: a loading assembly, used to transport the battery cell to an inspection position; a detection assembly, which can be movably arranged at the inspection position along the extension direction of the battery cell, and the detection assembly can simultaneously detect two adjacent side surfaces of the battery cell; and a clamping assembly with a flipping function, which is arranged at the inspection position and is used to receive the battery cell transported by the loading assembly and drive the battery cell to flip along the axis to replace the inspection surface of the battery cell.

[0005] Optionally, the detection component has an initial position and a stop position after completing one detection, and the detection component can reciprocate between the initial position and the stop position so that the detection component can be retested when it is reset from the stop position to the initial position.

[0006] Optionally, the detection component can be rotatably disposed at the detection position along the circumferential direction of the battery core, and the detection component and the clamping component can be flipped simultaneously.

[0007] Optionally, the flipping directions of the clamping assembly and the detection assembly are opposite and the flipping angles are both 90°.

[0008] Optionally, the detection assembly includes a first drive module, a mounting plate, a detection member, an arc-shaped guide rail, an arc-shaped slider and a first drive device, the first drive module extends in the same direction as the battery cell and the first drive module drives the mounting plate to move, the detection member is arranged on the mounting plate and the detection member is provided with two groups to respectively detect two adjacent side surfaces of the battery cell, the mounting plate is slidably connected to the arc-shaped guide rail through the arc-shaped slider, the arc-shaped guide rail extends along the circumference of the battery cell, the arc-shaped slider is provided with teeth, the first drive device is arranged on the arc-shaped guide rail and a gear meshing with the teeth is provided on the driving end of the first drive device.

[0009] Optionally, the clamping assembly includes a second driving device, a transmission shaft, a first connecting member, a second connecting member and an openable and closable clamping member, the second driving device is connected to the transmission shaft through the first connecting member, the clamping members are provided at both ends of the transmission shaft, and the transmission shaft is connected to the clamping member through the second connecting member to drive the two clamping members to rotate synchronously.

[0010] Optionally, the clamping assembly further includes a second driving module extending in the same direction as the transmission shaft, and the second driving module drives the clamping member to move toward and away from the battery core.

[0011] Optionally, the clamping assembly also includes a mounting seat for mounting the clamping member and a ball spline connected to the transmission shaft, the second connecting member includes a spline sleeve rotatably connected to the mounting seat for acting as a driving pulley, a driven pulley rotatably connected to the mounting seat and connected to the clamping member, and a transmission belt for connecting the driving pulley and the driven pulley, the spline shaft of the ball spline passes through the spline sleeve and the mounting seat so that the mounting seat can move linearly along the spline shaft and can drive the spline sleeve to rotate.

[0012] Optionally, the battery cell appearance inspection device further comprises a support assembly which is liftably arranged at the inspection position for receiving the battery cell, and the support assembly is provided with a vacuum suction cup for adsorbing the battery cell.

[0013] Optionally, the loading assembly includes a horizontal module and a lifting module movable along the horizontal module, and the lifting module is provided with a grabbing device for grabbing the battery cell.

[0014] Through the above technical scheme, the loading assembly transports the battery cell to the detection position, the clamping assembly arranged at the detection position receives the battery cell, and the detection assembly moves along the extension direction of the battery cell to simultaneously detect two adjacent side surfaces of the battery cell. After the detection is completed, the clamping assembly drives the battery cell to flip along the axis to replace the detection surface, and the detection assembly moves again to complete the detection of the remaining two side surfaces. It only takes two times to complete the detection of the four side surfaces of the battery cell, which saves costs and improves the detection efficiency.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a schematic structural diagram of a battery cell appearance inspection device in the present disclosure;

[0018] Figure 2 is a schematic diagram of the structure of the feeding assembly in the present disclosure;

[0019] Figure 3 is a schematic diagram of the structure of the detection component in the present disclosure;

[0020] Figure 4 is a schematic diagram of the structure of the clamping assembly in the present disclosure;

[0021] Figure 5 It is a schematic diagram of the structure of the support assembly in the present disclosure.

[0022] Description of Reference Numerals

[0023] 1. Feeding assembly; 11. Horizontal module; 111. Guide rail; 112. Transmission rod; 113. Third driving device; 12. Lifting module; 121. First lifting device; 122. Crossbeam; 13. Grasping device;

[0024] 2. Support assembly; 21. Support plate; 22. Vacuum suction cup; 23. Second lifting device;

[0025] 3. Detection assembly; 31. First drive module; 32. Mounting plate; 33. Detection member; 34. First drive device; 35. Gear; 36. Arc guide rail; 37. Arc slide block;

[0026] 4. Clamping assembly; 41. Second driving device; 42. Transmission shaft; 43. First connecting member; 44. Clamping member; 45. Mounting seat; 46. Ball spline; 47. Second connecting member; 471. Driven pulley; 472. Transmission belt; 473. Active pulley; 48. Second driving module;

[0027] 5. Battery cell. DETAILED DESCRIPTION

[0028] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0029] In the present disclosure, unless otherwise stated, the directional words used, such as "upper, lower, top, and bottom", generally refer to the upper, lower, top, and bottom of the corresponding component in the direction of gravity when in use, and "inside and outside" refer to the inside and outside relative to the outline of the component or structure itself. In addition, it should be noted that the terms used, such as "first, second, and third", etc., are used to distinguish one element from another, and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0030] like Figure 1 As shown, the present disclosure provides a battery cell appearance inspection device, including: a loading component 1, used to transport the battery cell 5 to a detection position; a detection component 3, which can be movably arranged at the detection position along the extension direction of the battery cell 5, and the detection component 3 can simultaneously detect two adjacent side surfaces of the battery cell 5; and a clamping component 4 with a flipping function, which is arranged at the detection position, and is used to receive the battery cell 5 transported by the loading component 1 and drive the battery cell 5 to flip along the axis to replace the detection surface of the battery cell 5.

[0031] Through the above technical scheme, the loading component 1 transports the battery cell 5 to the detection position, and the clamping component 4 set at the detection position receives the battery cell 5. The detection component 3 moves along the extension direction of the battery cell 5 to detect the two adjacent sides of the battery cell 5 at the same time. The battery cell 5 is a square shell battery cell. During the detection, the four sides extending in the circumferential direction of the battery cell 5 are detected. After detecting the two sides, the clamping component 4 drives the battery cell 5 to flip along the axis to replace the detection surface. At this time, the flip angle is 180°. The detection component 3 moves again to complete the detection of the remaining two sides. It only takes two times to complete the detection of the four sides of the battery cell 5, which saves costs and improves the detection efficiency. In the related technology, the clamping component 4 clamps the battery cell 5 when the battery cell 5 is incoming for detection. After the detection is completed, the clamping component 4 flips over to unload the material. That is to say, the present disclosure uses the flipping function of the clamping component 4 itself to reduce the number of detection components 3, achieving cost savings while ensuring detection efficiency.

[0032] As an optional embodiment, the detection component 3 has an initial position and a stop position after completing one detection. The detection component 3 can reciprocate between the initial position and the stop position so that the detection component 3 is retested again when it is reset from the stop position to the initial position, that is, the forward and backward movement of the detection component 3 are detected, the mechanism utilization rate is high, and the efficiency is relatively fast.

[0033] As an optional implementation, Figure 3 As shown, the detection component 3 can be rotatably arranged at the detection position along the circumferential direction of the battery cell 5, and the detection component 3 and the clamping component 4 can be flipped at the same time. The detection component 3 and the clamping component 4 can be flipped at the same time, which can shorten the rotation time of the battery cell 5 and improve the detection efficiency.

[0034] Optionally, the flipping directions of the clamping assembly 4 and the detection assembly 3 are opposite and the flipping angles are both 90°, which is used to replace the detection surface, that is, the clamping assembly 4 and the detection assembly 3 rotate 180° relative to each other, so that the rotation time of the battery cell 5 is shortened by half.

[0035] Optionally, the detection assembly 3 includes a first drive module 31, a mounting plate 32, a detection member 33, an arc guide rail 36, an arc slider 37 and a first drive device 34. The first drive module 31 extends in the same direction as the battery cell 5 and the first drive module 31 drives the mounting plate 32 to move. The mounting plate 32 moves along the axial direction of the battery cell 5 through the first drive module 31. The first drive module 31 can be constructed as any form of translation module as long as it can achieve the purpose of translation in the present disclosure. For example, it can be driven by a screw, a belt or a cylinder, which will not be described in detail here. For example, the detection member 33 is a 3D laser profiler, which uses laser scanning technology to measure the height difference and color depth of the surface of the battery cell 5. The detection member 33 is arranged on the mounting plate 32 and the detection member 33 is provided with two groups to respectively detect the adjacent two side surfaces of the battery cell 5, one group is used to detect the wide side of the battery cell 5, and the other group is used to detect the narrow side of the battery cell 5. In order to fully detect the wide side, two 3 can be set on the side used to detect the wide side. D laser profiler, for example, the mounting plate 32 can be constructed in an L shape, and an inclined transition plate can be added between the horizontal side and the vertical side of the L shape for easy flipping. The mounting plate 32 is slidably connected to the arcuate guide rail 36 through an arcuate slider 37, and the arcuate guide rail 36 extends along the circumference of the battery cell 5. The arcuate slider 37 is provided with teeth, and the first driving device 34 is arranged on the arcuate guide rail 36 and the driving end of the first driving device 34 is provided with a gear 35 meshing with the teeth. The first driving device 34 is a servo motor. The servo motor drives the arc-shaped slider 37 to move along the arc-shaped guide rail 36 through the gear 35 and the teeth to rotate the mounting plate 32 on which the detection component 33 is installed. The arc-shaped guide rail 36 is constructed as an arc structure with a central angle of at least 180°. It can be an integral part or can be composed of three arc-shaped tracks with a central angle of 60°. The arc-shaped slider 37 is constructed as an arc-shaped part with a central angle of at least 90° to ensure that the mounting plate 32 can rotate 90°. For example, the central angle of the arc-shaped slider 37 is 110°.

[0036] As an optional implementation, Figure 4 As shown, the clamping assembly 4 includes a second driving device 41, a transmission shaft 42, a first connecting member 43, a second connecting member 47 and an openable and closable clamping member 44. For example, the second driving device 41 is a servo motor, and the clamping member 44 is a parallel air gripper. A proximity switch is installed on the parallel air gripper to detect the presence of the battery cell 5. The parallel air gripper is wrapped with a rubber pad to prevent damage to the outer shell of the battery cell 5. The second driving device 41 is connected to the transmission shaft 42 through the first connecting member 43. Clamping members 44 are provided at both ends of the transmission shaft 42 for clamping the opposite sides of the battery cell 5 so that the battery cell 5 can be clamped more firmly. The transmission shaft 42 is connected to the clamping member 44 through the second connecting member 47 to drive the two clamping members 44 to rotate synchronously to flip the battery cell 5.

[0037] Optionally, the clamping assembly 4 also includes a second drive module 48 extending in the same direction as the transmission shaft 42, and the second drive module 48 drives the clamping member 44 to move toward and away from the battery cell 5, so as to move toward the battery cell 5 to clamp the battery cell 5 when materials are incoming, and release the battery cell 5 and move toward and away from the battery cell 5 when materials are unloaded, so as to wait for the next incoming materials. The second drive module 48 can be constructed as any form of translation module, as long as it can achieve the purpose of translation in the present disclosure, for example, it can be driven by a screw, a belt or a cylinder.

[0038] In addition, the clamping assembly 4 also includes a mounting seat 45 for mounting the clamping member 44 and a ball spline 46 connected to the transmission shaft 42. The ball spline 46 and the transmission shaft 42 can be connected through a coupling, and the ball spline 46 and the transmission shaft 42 extend in the same direction. The ball spline 46 includes a spline shaft and a spline sleeve moving on the spline shaft. The ball spline 46 is a linear motion system. When the spline sleeve uses the steel balls therein to linearly move on the spline shaft, it can also transmit torque. The second connecting member 47 includes a spline sleeve rotatably connected to the mounting seat 45 for acting as a driving pulley 473, and a spline sleeve rotatably connected to the mounting seat 45. A driven pulley 471 connected to and connected to the clamping member 44, and a transmission belt 472 used to connect the driving pulley 473 and the driven pulley 471, the spline shaft of the ball spline 46 passes through the spline sleeve and the mounting seat 45 so that the mounting seat 45 can move linearly along the spline shaft and drive the spline sleeve to rotate, the mounting seat 45 can move horizontally on the spline shaft through the spline sleeve, the transmission shaft 42 drives the spline sleeve to rotate through the spline shaft, the spline sleeve drives the driven pulley 471 to rotate through the transmission belt 472, thereby driving the clamping member 44 to rotate, the structure of the first connecting member 43 can be the same as the second connecting member 47, or it can be a gear set.

[0039] As an optional implementation, Figure 5 As shown, the battery cell appearance inspection device also includes a support component 2 that is liftably arranged at the inspection position for receiving the battery cell 5. The support component 2 is provided with a vacuum suction cup 22 for adsorbing the battery cell 5, that is, the battery cell 5 can also be received by the support component 2. At this time, the clamping component 4 is only used for flipping. The support component 2 can make the battery cell 5 more stable, and at the same time, it can also prevent the clamping component 4 from interfering with the movement of the inspection component 3. The support component 2 includes a second lifting device 23, a support plate 21 arranged on the top of the second lifting device 23, retractable guide columns arranged on both sides of the second lifting device 23, and a vacuum suction cup 22 arranged on the support plate 21. The second lifting device 23 can be an electric cylinder or a cylinder. Taking the electric cylinder as an example, the electric cylinder drives the support plate 21 to move up and down. When the battery cell 5 is incoming, the support plate 21 moves upward to contact the battery cell 5 and adsorbs the battery cell 5 through the vacuum suction cup 22. When the battery cell 5 needs to be rotated, the clamping component 4 clamps the battery cell 5, the vacuum suction cup 22 breaks the vacuum, and the electric cylinder descends.

[0040] As an optional implementation, Figure 2 As shown, the feeding assembly 1 includes a horizontal module 11 and a lifting module 12 that can move along the horizontal module 11. The lifting module 12 is provided with a grasping device 13 for grasping the battery cell 5. The grasping device 13 is a parallel air claw. The parallel air claw is wrapped with a rubber cushion to prevent damage to the battery cell 5. The horizontal module 11 adopts a single-drive dual module, that is, a third driving device 113 drives the two horizontal modules 11 to move. The third driving device 113 is a servo motor. The driving end of the servo motor is connected to a transmission rod 112. Both ends of the transmission rod 112 are respectively connected to the horizontal module 11. The horizontal module 11 includes a guide rail 111 and a guide rail 112. And a screw rod is arranged in the guide rail 111, and the transmission rod 112 is connected to the screw rod through a transmission device such as a gear set to drive the screw rod to rotate. A moving block is provided on the screw rod, and the moving block moves along the guide rail 111 inside the guide rail 111, and the moving block protrudes from the guide rail 111 and is connected to the lifting module 12. The moving block drives the lifting module 12 to move along the guide rail 111. The lifting module 12 includes a cross beam 122 connected to the two horizontal modules 11, and a first lifting device 121 arranged on the cross beam 122. The bottom of the first lifting device 121 is connected to a grasping device 13. For example, the first lifting device 121 can be an electric cylinder or a pneumatic cylinder.

[0041] In actual use, the lifting module 12 descends and grabs the battery cell 5 through the grabbing device 13 and transports the battery cell 5 to the detection position through the horizontal module 11, the support plate 21 rises to receive the battery cell 5, the vacuum suction cup 22 draws vacuum to suck the battery cell 5, and the detection component 33 is driven by the first driving module 31 to move in the horizontal direction for the first round of detection, and detects the two adjacent side surfaces of the battery cell 5 at the same time. After the first round of detection is completed, the clamping components 44 on both sides are respectively driven by the second driving modules 48 on both sides to move to the center to clamp the battery cell 5, the clamping components 44 clamp the battery cell 5, the vacuum suction cup 22 breaks the vacuum, and the support assembly 2 is lowered. The battery cell 5 and the detection component 3 rotate 180° relative to each other, and the support component 2 rises. The support plate 21 catches the battery cell 5 again, and the vacuum suction cup 22 sucks the battery cell 5 by vacuum. The detection component 33 is driven by the first driving module 31 to reset to the initial position in the horizontal direction and perform a second round of detection to detect the remaining two side surfaces under the battery cell 5. The detection component 33 performs image processing and feeds back the detection result. If the detection result is qualified, the next process is carried out. If the detection result is unqualified, the battery cell 5 is discharged.

[0042] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0044] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A battery cell appearance inspection device, characterized in that: include: Loading assembly, used to transport the battery cells to the testing position; A detection component, which can be movably arranged at the detection position along the extension direction of the battery cell, and the detection component can detect two adjacent side surfaces of the battery cell at the same time; as well as A clamping assembly with a flipping function is arranged at the detection position, and is used to receive the battery cell transported by the loading assembly and drive the battery cell to flip along an axis to replace the detection surface of the battery cell.

2. The battery cell appearance inspection device according to claim 1, characterized in that: The detection component has an initial position and a stop position after completing one detection. The detection component can reciprocate between the initial position and the stop position so that the detection component can be re-detected when it is reset from the stop position to the initial position.

3. The battery cell appearance inspection device according to claim 1 or 2, characterized in that: The detection component can be rotatably disposed at the detection position along the circumferential direction of the battery core, and the detection component and the clamping component can be turned over simultaneously.

4. The battery cell appearance inspection device according to claim 3, characterized in that: The flipping directions of the clamping assembly and the detection assembly are opposite and the flipping angles are both 90°.

5. The battery cell appearance inspection device according to claim 4, characterized in that: The detection assembly includes a first driving module, a mounting plate, a detection member, an arcuate guide rail, an arcuate slider and a first driving device. The first driving module extends in the same direction as the battery cell and the first driving module drives the mounting plate to move. The detection member is arranged on the mounting plate and the detection member is provided with two groups to respectively detect two adjacent side surfaces of the battery cell. The mounting plate is slidably connected to the arcuate guide rail through the arcuate slider. The arcuate guide rail extends along the circumference of the battery cell. The arcuate slider is provided with teeth. The first driving device is arranged on the arcuate guide rail and a gear meshing with the teeth is provided on the driving end of the first driving device.

6. The battery cell appearance inspection device according to claim 1, characterized in that: The clamping assembly includes a second driving device, a transmission shaft, a first connecting member, a second connecting member and an openable and closable clamping member. The second driving device is connected to the transmission shaft through the first connecting member. The clamping members are provided at both ends of the transmission shaft. The transmission shaft is connected to the clamping member through the second connecting member to drive the two clamping members to rotate synchronously.

7. The battery cell appearance inspection device according to claim 6, characterized in that: The clamping assembly further includes a second driving module extending in the same direction as the transmission shaft, and the second driving module drives the clamping member to move toward and away from the battery core.

8. The battery cell appearance inspection device according to claim 7, characterized in that: The clamping assembly also includes a mounting seat for mounting the clamping member and a ball spline connected to the transmission shaft, the second connecting member includes a spline sleeve rotatably connected to the mounting seat for acting as a driving pulley, a driven pulley rotatably connected to the mounting seat and connected to the clamping member, and a transmission belt for connecting the driving pulley and the driven pulley, the spline shaft of the ball spline passes through the spline sleeve and the mounting seat so that the mounting seat can move linearly along the spline shaft and drive the spline sleeve to rotate.

9. The battery cell appearance inspection device according to claim 1, characterized in that: The battery cell appearance inspection device further comprises a support assembly which is liftably arranged at the inspection position and is used to receive the battery cell. The support assembly is provided with a vacuum suction cup for adsorbing the battery cell.

10. The battery cell appearance inspection device according to claim 1, characterized in that: The loading assembly includes a horizontal module and a lifting module that can move along the horizontal module, and the lifting module is provided with a grabbing device for grabbing the battery core.

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