Visual inspection device for battery shell

Abstract

The utility model provides a battery case visual inspection device which comprises a first conveying line, a second conveying line, a third conveying line, a visual mechanism, a first material moving mechanism and a second material moving mechanism, the first conveying line and the second conveying line are arranged in the same direction and are partially parallel in the horizontal direction, the visual mechanism comprises a first visual assembly, and the third conveying line comprises a second visual assembly. The first material moving mechanism is used for moving the battery shells among the first conveying line, the first visual assembly and the second conveying line, and the second material moving mechanism is used for taking and placing the battery shells from the second conveying line to the third conveying line. By means of the arrangement, man-made misjudgment is reduced, and the detection accuracy and the detection efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of automated detection, in particular to a battery shell visual detection device. Background Art

[0002] The battery case in new energy vehicles is a key component that protects the battery pack from external impact. Defects in the battery case will affect the function and performance of the battery. For example, defects inside the mouth, such as burrs and notches, will affect the subsequent battery life and even cause short circuits, leading to safety issues. Therefore, strict quality control must be carried out before leaving the factory, so effective detection of appearance defects is particularly important. At present, the power battery market is dominated by square aluminum shells with light weight and high energy density. The detection of their appearance defects is still mainly based on manual visual inspection, which has problems such as low detection efficiency and high missed detection rate, making it difficult to meet the needs of automated production. Manual measurement and judgment may also be affected by human factors such as the subjective will, emotions, and visual fatigue of the inspectors, resulting in large errors and slow speed in the detection results.

[0003] Therefore, it is necessary to design a battery shell visual inspection device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a battery shell visual inspection device which improves inspection efficiency, reduces human misjudgment and improves inspection accuracy.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a battery shell visual inspection device, which includes a first conveyor line, a second conveyor line, a third conveyor line, a visual mechanism, a first material moving mechanism and a second material moving mechanism. The first conveyor line and the second conveyor line are arranged in the same direction and are partially parallel in the horizontal direction. The visual mechanism includes a first visual component. The first material moving mechanism is used to move the battery shell between the first conveyor line, the first visual component and the second conveyor line. The second material moving mechanism is used to take and place the battery shell from the second conveyor line to the third conveyor line.

[0006] As a further improved technical solution of the present invention, the parts parallel to the first conveyor line and the second conveyor line are defined as the first parallel section and the second parallel section respectively, the first visual component is located on one side of the second parallel section, and the first material moving mechanism moves between the first parallel section, above the second parallel section and the detection position of the first visual component.

[0007] As a further improved technical solution of the present invention, the first material moving mechanism includes an XYZ three-axis moving component and a plurality of rotary material picking and placing components arranged on the XYZ three-axis moving component, and the rotation axis of the rotary material picking and placing component is arranged along the vertical direction.

[0008] As a further improved technical solution of the present invention, multiple rotating material picking and placing components are arranged side by side along the conveying direction of the first conveyor line, and the number of the first visual components is the same as the number of the rotating material picking and placing components, and they correspond one to one.

[0009] As a further improved technical solution of the present invention, the rotary material picking and unloading assembly includes a rotating motor, a transmission part, a bracket, and multiple vacuum suction cups arranged at the lower end of the bracket. The bracket and the vacuum suction cup can be placed in the battery casing and adsorb its internal bottom surface. The first visual component is used to detect the outer side surface and outer bottom edge of the battery casing.

[0010] As a further improved technical solution of the present invention, the transmission member includes a driving wheel and a driven wheel arranged on the output shaft of the rotating motor, a transmission belt connecting the driving wheel and the driven wheel, and a rotating shaft arranged at the top end of the bracket, the rotating shaft is arranged on the driven wheel and coaxially with the driven wheel, and the rotating shaft rotates synchronously with the driven wheel.

[0011] As a further improved technical solution of the present invention, the third conveyor line is located below the second conveyor line, and the conveying direction of the third conveyor line is perpendicular to the conveying direction of the second conveyor line.

[0012] As a further improved technical solution of the present invention, the second material moving mechanism includes a gantry spanning the second conveyor line, a moving assembly provided on the gantry, and a suction cup assembly driven by the moving assembly.

[0013] As a further improved technical solution of the present invention, the visual mechanism also includes a second visual component, a third visual component, a fourth visual component, a fifth visual component and a sixth visual component arranged along the first conveyor line, the second visual component is used to detect the port appearance of the battery shell, the third visual component is used to detect the inner bottom surface of the battery shell, the fourth visual component is used to detect the inner side surface of the battery shell, the fifth visual component is used to detect the outer bottom surface of the battery shell, and the sixth visual component is used to detect the port burrs of the battery shell.

[0014] As a further improved technical solution of the present invention, the first material moving mechanism, the first visual component and the second conveyor line are respectively divided into two groups, and the two groups of the first material moving mechanism, the first visual component and the second conveyor line are symmetrically arranged on both sides of the first conveyor line.

[0015] It can be seen from the above technical solution that the battery shell visual inspection device of the utility model realizes the automatic inspection process of the battery shell by integrating the first conveyor line, the second conveyor line, the third conveyor line, the first material moving mechanism, the second material moving mechanism and the visual mechanism, thereby reducing manual intervention and improving production efficiency and accuracy; through precise visual inspection, it can ensure that only battery shells that meet the quality standards can enter the next production link, thereby improving the overall quality of the final product; the design of the first material moving mechanism and the second material moving mechanism enables the battery shells to be efficiently transferred between different conveyor lines, optimizing the inspection process; in addition, through the cooperation of the first conveyor line and the second conveyor line, the upstream and downstream of the device can be flexibly integrated with the production line, and the production line can be easily upgraded without changing the existing infrastructure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a top view of a battery casing visual inspection device according to one embodiment of the present invention.

[0017] Figure 2 for Figure 1 Schematic diagram of the positions of the first conveyor line, the second conveyor line and the third conveyor line.

[0018] Figure 3 for Figure 1 A three-dimensional diagram of the material transfer mechanism.

[0019] Figure 4 for Figure 3 A three-dimensional view of the rotating loading and unloading component. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Please refer to Figure 1 As shown, the utility model provides a battery shell visual inspection device, which includes a first conveyor line 10, a second conveyor line 40, a third conveyor line 60, a visual mechanism 20, a first material moving mechanism 30 and a second material moving mechanism 50.

[0022] The first conveyor line 10 is used to convey the battery shell to the detection position of the visual mechanism 20. Figure 2As shown, the first conveyor line 10 and the second conveyor line 40 are arranged in the same direction. In the horizontal direction, the first conveyor line 10 and the second conveyor line 40 are partially parallel. The parallel parts of the first conveyor line 10 and the second conveyor line 40 are defined as the first parallel section 12 and the second parallel section 41, that is, the first conveyor line 10 is divided into the upstream conveying section 11 and the downstream first parallel section 12, and the second conveying section 40 is divided into the upstream second parallel section 41 and the downstream conveying section 42.

[0023] The visual mechanism 20 includes a first visual component 21, a second visual component 22, a third visual component 23, a fourth visual component 24, a fifth visual component 25, and a sixth visual component 26. Since the battery case is a rectangular parallelepiped with an opening at the top, the parts that need to be inspected include: the port, the inner side surface, the inner bottom surface, the outer side surface, the outer bottom surface, and the outer bottom edge.

[0024] Based on this, a first visual component 21 is provided for detecting the outer side surface and outer bottom surface edge of the battery casing. The first visual component 21 is located on one side of the second parallel section 41. The first material moving mechanism 30 is used to move the battery casing between the first conveyor line 10, the first visual component 21 and the second conveyor line 40. Specifically, when the battery casing is conveyed to the preset position of the first parallel section 12 by the first conveyor line 10, the first conveyor line 10 stops, and the battery casing is moved to the detection position of the first visual component 21 by the first material moving mechanism 30. Further, after completing the detection of the outer side surface and outer bottom surface edge, the first material moving mechanism 30 moves the battery casing to the second parallel section 41, and is conveyed downstream by the second conveyor line 40.

[0025] Please refer to Figure 3 As shown, the first material moving mechanism 30 includes an XYZ three-axis moving assembly, a bracket 34, and a plurality of rotary material pick-up and place components 35 mounted on the XYZ three-axis moving assembly via the bracket 34. The XYZ three-axis moving assembly specifically includes an X-axis linear module 31, a Y-axis linear module 32, and a Z-axis linear module 33 connected in sequence, and the bracket 34 is mounted on the Z-axis linear module 33.

[0026] Please refer to Figure 4 As shown, the rotary pick-up and discharge assembly 35 is used to grab or suck the battery shell and drive the battery shell to rotate. The rotation axis of the rotary pick-up and discharge assembly 35 is arranged in the vertical direction. Specifically, the rotary pick-up and discharge assembly 35 includes a rotary motor 351, a transmission member, a bracket 355, and a plurality of vacuum suction cups 356 provided at the lower end of the bracket 355. In this embodiment, to facilitate the detection of the outer side surface and outer bottom edge of the battery shell, the bracket 355 and the vacuum suction cup 356 are configured to be placed in the battery shell and absorb the size of its inner bottom surface. With this configuration, the rotary pick-up and discharge assembly 35 absorbs the inner bottom surface of the battery shell and rotates to complete the detection of the outer side surface and outer bottom edge, avoiding obstruction of the outer side of the battery.

[0027] The transmission member includes a driving wheel, a driven wheel 353, a transmission belt 352 connecting the driving wheel and the driven wheel 353, and a rotating shaft 354 provided at the top of the bracket 355. The rotating shaft 354 is provided on the driven wheel 353 and is coaxially arranged with the driven wheel 353. The rotating shaft 354 rotates synchronously with the driven wheel 353. A plurality of rotary pick-up and discharge components 35 are arranged side by side along the conveying direction of the first conveyor line 10. The number of first visual components 21 is the same as the number of rotary pick-up and discharge components 35, and they correspond one to one. In this embodiment, there are three first visual components 21 and three rotary pick-up and discharge components 35. Therefore, the first material transfer mechanism 30 can simultaneously absorb the three battery shells on the first conveyor line 10 and synchronously transfer them to the detection positions of the three first detection components 21 for detection. With such a configuration, the material transfer and detection efficiency is greatly improved.

[0028] Preferably, in this embodiment, the first material moving mechanism 30, the first visual component 21, and the second conveyor line 40 are respectively two groups, and the two groups of the first material moving mechanism 30, the first visual component 21, and the second conveyor line 40 are symmetrically arranged on both sides of the first conveyor line 10. Figure 1 As shown, the first material transfer mechanism 30, three side-by-side first vision modules 21, and second conveyor line 40 form a group located on one side of the first conveyor line 10; the first material transfer mechanism 30', three side-by-side first vision modules 21', and second conveyor line 40' form a group located symmetrically on the other side of the first conveyor line 10. This arrangement allows the first vision modules on both sides to independently perform inspections, doubling the inspection speed for the outer side and bottom edges of the battery casing.

[0029] Please refer to Figure 1 As shown, the second visual component 22, the third visual component 23, the fourth visual component 24, the fifth visual component 25 and the sixth visual component 26 are sequentially arranged along the first conveyor line 10, specifically located in the upstream conveying section 11. The second visual component 22 is used to detect the port appearance of the battery shell, the third visual component 23 is used to detect the inner bottom surface of the battery shell, the fourth visual component 24 is used to detect the inner side surface of the battery shell, the fifth visual component 25 is used to detect the outer bottom surface of the battery shell, and the sixth visual component 26 is used to detect the port burrs of the battery shell. Among them, the second visual component 22, the third visual component 23, the fourth visual component 24 and the sixth visual component 26 are located above the first conveyor line 10, and the fifth visual component 25 is located below the first conveyor line 10. The battery shell passes through the detection positions of the above-mentioned visual components in sequence during the transportation of the first conveyor 10 for inspection, and then is transported downstream.

[0030] The third conveyor line 60 is used to unload products with NG test results, and qualified products flow directly out of the second conveyor line 40. There are two third conveyor lines 60, which are parallel to each other. Both third conveyor lines 60 are located below the second conveyor line 40 and are perpendicular to the conveying direction of the second conveyor line 40. The second material transfer mechanism 50 is used to pick up and place NG battery casings from the second conveyor line 40 to the third conveyor line 60. The second material transfer mechanism 50 includes a gantry spanning the second conveyor line 40, a moving component provided on the gantry, and a suction cup component driven by the moving component. Specifically, the moving component is a horizontal / vertical two-axis moving component.

[0031] Terms such as "upper" and "lower" used herein to denote relative spatial positions are used for ease of explanation to describe the relationship of one feature relative to another feature as shown in the accompanying drawings. It should be understood that, depending on the placement of the product, these terms may be intended to encompass different orientations in addition to those shown in the drawings and should not be construed as limitations on the claims.

[0032] In addition, the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in this field should understand that technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered by the scope of the claims of the present invention.

Claims

1. A battery casing visual inspection device, characterized by: It includes a first conveyor line, a second conveyor line, a third conveyor line, a visual mechanism, a first material moving mechanism and a second material moving mechanism. The first conveyor line and the second conveyor line are arranged in the same direction and are partially parallel in the horizontal direction. The visual mechanism includes a first visual component. The first material moving mechanism is used to move the battery casing between the first conveyor line, the first visual component and the second conveyor line. The second material moving mechanism is used to take and place the battery casing from the second conveyor line to the third conveyor line.

2. The battery casing visual inspection device according to claim 1, wherein: The parts parallel to the first conveyor line and the second conveyor line are defined as the first parallel section and the second parallel section respectively, the first visual component is located on one side of the second parallel section, and the first material moving mechanism moves between the first parallel section, above the second parallel section and the detection position of the first visual component.

3. The battery case visual inspection device according to claim 1, wherein: The first material moving mechanism includes an XYZ three-axis moving component and a plurality of rotary material picking and placing components arranged on the XYZ three-axis moving component, and the rotation axis of the rotary material picking and placing components is arranged along the vertical direction.

4. The battery case visual inspection device according to claim 3, wherein: The plurality of rotating material picking and placing components are arranged side by side along the conveying direction of the first conveyor line, and the number of the first visual components is the same as the number of the rotating material picking and placing components, and they correspond one to one.

5. The battery case visual inspection device according to claim 3, wherein: The rotary loading and unloading assembly includes a rotating motor, a transmission part, a bracket, and a plurality of vacuum suction cups arranged at the lower end of the bracket. The bracket and the vacuum suction cups can be placed in the battery casing and adsorb its internal bottom surface. The first visual component is used to detect the outer side surface and outer bottom edge of the battery casing.

6. The battery casing visual inspection device according to claim 5, characterized in that: The transmission member includes a driving wheel and a driven wheel provided on the output shaft of the rotating motor, a transmission belt connecting the driving wheel and the driven wheel, and a rotating shaft provided on the top end of the bracket. The rotating shaft is provided on the driven wheel and is coaxially arranged with the driven wheel. The rotating shaft rotates synchronously with the driven wheel.

7. The battery case visual inspection device according to claim 1, wherein: The third conveying line is located below the second conveying line, and a conveying direction of the third conveying line is perpendicular to a conveying direction of the second conveying line.

8. The battery casing visual inspection device according to claim 7, wherein: The second material moving mechanism includes a gantry spanning the second conveying line, a moving component arranged on the gantry, and a suction cup component driven by the moving component.

9. The battery casing visual inspection device according to claim 1, wherein: The visual mechanism also includes a second visual component, a third visual component, a fourth visual component, a fifth visual component and a sixth visual component arranged along the first conveyor line, the second visual component is used to detect the port appearance of the battery shell, the third visual component is used to detect the inner bottom surface of the battery shell, the fourth visual component is used to detect the inner side surface of the battery shell, the fifth visual component is used to detect the outer bottom surface of the battery shell, and the sixth visual component is used to detect the port burrs of the battery shell.

10. The battery casing visual inspection device according to claim 1, wherein: The first material moving mechanism, the first visual component and the second conveying line are respectively divided into two groups, and the two groups of the first material moving mechanism, the first visual component and the second conveying line are symmetrically arranged on both sides of the first conveying line.

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