A multi-sheet inspection device and an inspection system suitable for panoramic inspection of sheet materials.

Abstract

This application relates to the field of battery manufacturing technology, specifically disclosing a wafer inspection device and an inspection system suitable for panoramic wafer inspection. The wafer inspection device includes a wafer picking mechanism and an inspection table. The picking mechanism is equipped with a picking hand; the inspection table has an inspection station. The picking hand is used to pick up wafers and transfer them to the inspection station. A first pair of testing holes is provided in the middle of the picking hand; a second pair of testing holes is provided on the inspection table. When the picking hand is at the inspection station, the first and second pairs of testing holes are aligned along their axis, allowing sound waves to pass through them. In this solution, the picking hand can transfer the wafers to the inspection station after picking them up, achieving rapid connection between the wafers and the inspection table. When needed, the inspection mechanism can directly inspect the middle area of ​​the wafers through the first and second pairs of testing holes, reducing inspection errors and the risk of missed detections.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a multi-sheet inspection device and an inspection system suitable for panoramic inspection of multi-sheet materials. Background Technology

[0002] In the battery production process, electrode sheets and other materials need to be processed, cut, and stacked. During these processes, the materials need to undergo visual inspection and re-sheet inspection to avoid defects or duplicate sheets.

[0003] Among these, duplicate electrode inspection refers to detecting the number of electrodes before stacking, preventing the material handling mechanism from acquiring two or more electrodes at once. Since the tabs are located on the outer periphery of the electrode, inspection at the tabs is convenient; therefore, existing inspection methods generally inspect the tabs of the electrode. For example, ultrasonic testing involves emitting ultrasonic waves at the tabs and determining the number of electrodes based on the received signals, as illustrated in patent application CN206059550U.

[0004] However, the tab volume is small relative to the electrode volume, resulting in a small overall size and thus a large error. This is especially true for some small-sized electrodes, where the small tab volume increases the risk of missed detections. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a duplicate sheet inspection device and an inspection system suitable for panoramic inspection of sheet materials, so as to solve the problem of large errors in existing duplicate sheet inspection methods.

[0006] To achieve the above-mentioned technical objectives, the first aspect of this application provides a duplicate film inspection device, comprising: a material handling mechanism and an inspection table;

[0007] The material handling mechanism is equipped with a material handling hand;

[0008] The testing platform is equipped with testing stations;

[0009] The material handling hand is used to acquire the material sheet and to transfer the material sheet to the inspection station;

[0010] The material handling hand is provided with a first pair of measuring holes in the middle;

[0011] The testing platform is provided with a second pair of testing holes;

[0012] When the material handling hand is located at the detection station, the first pair of measuring holes and the second pair of measuring holes are aligned along the hole axis, so that the detection sound wave can pass through the first pair of measuring holes and the second pair of measuring holes to form the detection of the thickness of the material sheet.

[0013] Furthermore, it also includes dust removal mechanisms;

[0014] The dust removal mechanism includes an adsorption port;

[0015] The adsorption port is located at the detection station.

[0016] Furthermore, the dust removal mechanism also includes: a slide rail, a support member, an adsorption tube, and a dust removal drive component;

[0017] The adsorption port is located in the adsorption tube;

[0018] The adsorption tube is disposed on the support member;

[0019] The support member is slidably mounted on the slide rail;

[0020] The output end of the dust removal drive is connected to the support member, so as to drive the adsorption tube to slide over the material sheet.

[0021] Furthermore, the testing platform includes: a first lifting drive component, a platform body, a base, and a telescopic column;

[0022] The telescopic column is disposed on the base, and the telescopic column can extend and retract in the vertical direction;

[0023] The platform is mounted on the telescopic column, and the testing station is mounted on the platform.

[0024] The first lifting drive component is disposed on the base, and the output end of the first lifting drive component is connected to the platform.

[0025] Furthermore, the material handling mechanism includes: a material handling frame and a rotary drive component;

[0026] The material handling hand is rotatably mounted on the material handling frame;

[0027] The rotary drive is disposed on the material handling frame, and the output end of the rotary drive is connected to the material handling hand.

[0028] Furthermore, the material handling mechanism includes: a second lifting drive component, a second base, and a second telescopic column;

[0029] The second telescopic column is disposed on the second base, and the second telescopic column can extend and retract in the vertical direction;

[0030] The material handling rack is mounted on the second telescopic column;

[0031] The second lifting drive is disposed on the second base, and the output end of the second lifting drive is connected to the material picker.

[0032] Furthermore, the material handling mechanism includes: a horizontal drive component;

[0033] The output end of the horizontal drive component is connected to the second base, and is used to drive the second base to move in the horizontal direction.

[0034] Furthermore, the material handling hand is equipped with several vacuum suction cups.

[0035] Furthermore, an ultrasonic transmitter is provided inside the second pair of measuring holes;

[0036] An ultrasonic receiver is installed inside the first pair of measuring holes.

[0037] The second aspect of this application provides a detection system suitable for panoramic inspection of sheet materials, comprising: an appearance inspection device and a sheet material inspection device as described in any one of the above claims;

[0038] The appearance inspection device includes a support platform and an appearance inspection device;

[0039] The appearance inspection device is mounted on the support platform and can be moved to the inspection station in the sheet inspection device to perform appearance inspection on the sheet at the inspection station.

[0040] As can be seen from the above technical solutions, this application provides a duplicate sheet inspection device and an inspection system suitable for panoramic inspection of sheet materials; wherein, the duplicate sheet inspection device includes: a material picking mechanism and an inspection table; the material picking mechanism is provided with a material picking hand; the inspection table is provided with an inspection station; the material picking hand is used to pick up sheet materials and to transfer the sheet materials to the inspection station; a first pair of measuring holes is provided in the middle of the material picking hand; a second pair of measuring holes is provided on the inspection table; when the material picking hand is located at the inspection station, the first pair of measuring holes and the second pair of measuring holes are aligned along the hole position axis, so that the detection sound wave can pass through the first pair of measuring holes and the second pair of measuring holes.

[0041] In this solution, the material handler can transfer the material sheet to the testing station after acquiring it, achieving rapid docking between the material sheet and the testing table. When needed, the testing mechanism can inspect the center of the material sheet through the first and second pairs of testing holes. Compared to the method of inspecting the tab area, this solution reduces testing errors and the risk of missed detections by increasing the area to be inspected. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A schematic diagram of the testing table and dust removal mechanism of a duplicate film testing device provided in an embodiment of this application;

[0044] Figure 2 Another schematic diagram of the testing table and dust removal mechanism of a duplicate film testing device provided in this application embodiment;

[0045] Figure 3 This is a schematic diagram of the material handling mechanism of a multi-piece inspection device provided in an embodiment of this application;

[0046] Figure 4 Another schematic diagram of the material handling mechanism of a duplicate film inspection device provided in this application embodiment;

[0047] In the picture:

[0048] 10. Material handling mechanism; 11. Material handling hand; 111. Vacuum suction cup; 12. First pair of measuring holes; 13. Material handling frame; 14. Rotary drive component; 15. Second lifting drive component; 16. Second base; 17. Second telescopic column; 18. Horizontal drive component

[0049] 20. Testing table; 21. Testing station; 22. Second pair of testing holes; 23. First lifting drive component; 24. Table body; 25. Base; 26. Telescopic column;

[0050] 30. Dust removal mechanism; 31. Adsorption port; 32. Slide rail; 33. Support component; 34. Adsorption tube; 35. Dust removal drive component. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0052] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0054] Please see Figures 1 to 4 In the first aspect of this application, a replica testing device is provided, including a material handling mechanism 10 and a testing table 20.

[0055] The material handling mechanism 10 is equipped with a material handling hand 11; the inspection table 20 is equipped with an inspection station 21; the material handling hand 11 is used to pick up the material sheet and to transfer the material sheet to the inspection station 21; a first pair of measuring holes 12 is provided in the middle of the material handling hand 11; a second pair of measuring holes 22 is provided on the inspection table 20; when the material handling hand 11 is located at the inspection station 21, the first pair of measuring holes 12 and the second pair of measuring holes 22 are aligned, so that the detection sound wave can pass through the first pair of measuring holes 12 and the second pair of measuring holes 22. The alignment of the first pair of measuring holes 12 and the second pair of measuring holes 22 means that their hole axes coincide.

[0056] In the embodiments provided in this application, the sheet inspection device can be applied to existing sheet inspection equipment, and the inspection support structure in the existing equipment can be replaced with the inspection table 20 in this embodiment.

[0057] In this embodiment, the material handling hand 11 can be used solely for the feeding function, or it can be used in conjunction with the inspection table 20 to perform both feeding and inspection functions. During feeding, the material handling hand 11 can acquire the material sheet and transfer it to the inspection station 21 of the inspection table 20 or other devices capable of placing the material sheet. As one implementation, the material handling hand 11 is equipped with several vacuum suction cups 111. The vacuum suction cups 111 are connected to a vacuum generator via flexible hoses, allowing the vacuum suction cups 111 to move with the material handling hand 11 and acquire the material sheet by suction.

[0058] When testing is required, the material handler 11 transfers the sheet to the testing station 21, at which point the first pair of measuring holes 12 and the second pair of measuring holes 22 are aligned, allowing the testing mechanism to test the center of the sheet through the first pair of measuring holes 12 and the second pair of measuring holes 22. The testing mechanism can employ existing testing equipment, such as ultrasonic testing equipment, enabling the duplicate sheet testing device provided in this embodiment to be directly applied to existing equipment.

[0059] In one implementation, the ultrasonic testing device may include an ultrasonic transmitter and an ultrasonic receiver. The ultrasonic transmitter may be disposed within the testing stage 20; the ultrasonic receiver may be disposed directly above the second pair of measuring holes 22, specifically such that when the first pair of measuring holes 12 and the second pair of measuring holes 22 are aligned, the ultrasonic signal emitted by the ultrasonic transmitter can pass through the material sheet and be received by the ultrasonic receiver. The ultrasonic receiver can determine the thickness of the material sheet based on the strength of the received ultrasonic signal, and thus determine the number of layers in the material sheet, thereby determining whether the material sheet exhibits a layered phenomenon. Specifically, the method for calculating the number of material sheet layers based on the received ultrasonic signal is prior art and will not be elaborated upon in this embodiment.

[0060] As described above, the duplicate sheet inspection device provided in this embodiment enables rapid feeding of sheets to the inspection station and allows for duplicate sheet inspection of the middle portion of the sheet in conjunction with the inspection mechanism. Compared to methods that inspect tabs, which have a small volume proportion at the edge of the sheet, this solution improves inspection efficiency and accuracy by increasing the area of ​​the inspection region. Specifically, the inspection mechanism has low alignment and signal acquisition accuracy for small-volume objects such as tabs, and there is a risk of missed detection due to the small size of the tabs in duplicate sheets. In contrast, in this solution, the inspection mechanism can directly pass through the first pair of test holes 12 and the second pair of test holes 22, allowing the signal to pass through the middle of the sheet. This reduces the alignment process between the inspection mechanism and the inspected object, thus improving inspection efficiency. Furthermore, the increased inspection area improves inspection accuracy and reduces the risk of missed detection.

[0061] In one embodiment, the ultrasonic transmitter may be disposed within the second pair of measuring holes 22; and the ultrasonic receiver may be disposed within the first pair of measuring holes 12.

[0062] In one embodiment, it further includes a dust removal mechanism 30; the dust removal mechanism 30 includes an adsorption port 31; the adsorption port 31 is disposed at the detection station 21.

[0063] The inventors discovered in application that even if the sheet material undergoes a dust removal process beforehand, dust and other adsorbents may still adhere to it after it is loaded onto the testing station 21. These adsorbents can interfere with the testing results. Therefore, in this embodiment, the dust removal mechanism 30 can remove dust from the sheet material at the testing station 21 to further improve the accuracy of the duplicate sheet testing.

[0064] As one implementation method, please refer to Figure 1 and Figure 2The dust removal mechanism 30 also includes: a slide rail 32, a support member 33, an adsorption tube 34, and a dust removal drive member 35; the adsorption port 31 is disposed on the adsorption tube 34; the adsorption tube 34 is disposed on the support member 33; the support member 33 is slidably disposed on the slide rail 32; the output end of the dust removal drive member 35 is connected to the support member 33 so as to drive the adsorption tube 34 to slide over the material sheet.

[0065] The adsorption tube 34 can be provided with multiple adsorption ports 31, which are evenly spaced. The dust removal drive component 35 can be, for example, a cylinder, a motor, and a lead screw. For example, the dust removal drive component 35 can be a cylinder mounted on the slide rail 32 or the base 25 described below, which can drive the support component 33 to slide along the slide rail 32. Alternatively, the dust removal drive component 35 can include a rotary motor and a lead screw; the rotary motor is mounted on the slide rail 32 or the base 25, and its output end is fixedly connected to the lead screw; the lead screw is engaged with the support component 33; through the guiding effect of the slide rail 32 on the support component 33, when the rotary motor drives the lead screw to rotate, the support component 33 can slide along the slide rail 32.

[0066] In this embodiment, after the material picker 11 places the material sheet on the detection station 21, the dust removal drive 35 can drive the adsorption tube 34 to sweep across the upper surface of the material sheet to remove dust from the entire material sheet, and after dust removal, it moves to the side of the material sheet to avoid airflow to the detection mechanism.

[0067] In this embodiment, the adsorption tube 34 can be connected to the vacuum dust removal system via a vacuum tube.

[0068] In one implementation, the testing station 21 is located on the top surface of the testing table 20, and the testing station 21 is provided with multiple vacuum adsorption holes to more firmly fix the material sheet through the vacuum adsorption holes. Correspondingly, the vacuum adsorption holes are connected to a vacuum generator through pipelines.

[0069] In one embodiment, the testing table 20 includes: a first lifting drive 23, a table body 24, a base 25, and a telescopic column 26; the telescopic column 26 is disposed on the base 25 and can extend and retract in the vertical direction; the table body 24 is disposed on the telescopic column 26, and the testing station 21 is disposed on the table body 24; the first lifting drive 23 is disposed on the base 25, and the output end of the first lifting drive 23 is connected to the table body 24.

[0070] The first lifting drive component 23 can drive the platform 24 to rise and fall, thereby adjusting the height of the material sheet after it is placed at the detection station 21, and thus adjusting the relative position of the material sheet and the adsorption tube 34 to avoid interference between them.

[0071] In this embodiment, the first lifting drive component 23 can be a cylinder. The telescopic column 26 can be an existing telescopic column, specifically designed to provide guidance for the lifting and lowering of the platform 24.

[0072] In one embodiment, the material handling mechanism 10 includes: a material handling frame 13 and a rotary drive 14; a material handling hand 11 is rotatably disposed on the material handling frame 13; the rotary drive 14 is disposed on the material handling frame 13, and the output end of the rotary drive 14 is connected to the material handling hand 11.

[0073] Specifically, the material handling rack 13 may be equipped with a rotating shaft; the material handling hand 11 is fixedly sleeved on the rotating shaft. The rotary drive 14 may be a rotary motor and connected to the rotating shaft through a transmission mechanism such as gears, so that when the rotary drive 14 is started, it can drive the rotating shaft to rotate and drive the material handling hand 11 to rotate in the horizontal direction, so as to adjust the relative position of the material handling hand 11 and the detection table 20 in the horizontal direction.

[0074] In a further improved embodiment, the material handling mechanism 10 includes: a second lifting drive 15, a second base 16, and a second telescopic column 17; the second telescopic column 17 is disposed on the second base 16 and is capable of extending and retracting in the vertical direction; the material handling rack 13 is disposed on the second telescopic column 17; the second lifting drive 15 is disposed on the second base 16, and the output end of the second lifting drive 15 is connected to the material handling rack 13.

[0075] The second lifting drive component 15 can also be a cylinder. The second lifting drive component 15 can drive the material picker 13 to rise and fall, so as to adjust the relative position of the material picker 11 and the inspection table 20 in the vertical direction.

[0076] Furthermore, the material handling mechanism 10 includes a horizontal drive member 18; the output end of the horizontal drive member 18 is connected to the second base 16, and is used to drive the second base 16 to move in the horizontal direction.

[0077] In this embodiment, the horizontal drive 18 can drive the second base 16, the pick-up rack 13 and the pick-up hand 11 to move horizontally closer to or further away from the detection table 20.

[0078] In one implementation, the horizontal drive 18 and the rotary drive 14 can cooperate as the loading drive for the picker 11. Specifically, during material picking, the horizontal drive 18 drives the second base 16 and the picker 13 to retract to the rotating shaft aligned with the material storage area. Then, the rotary drive 14 drives the picker 11 to rotate to the material storage area to pick up the material. After that, the rotary drive 14 drives the picker 11 to rotate to the alignment inspection table. Finally, the horizontal drive 18 drives the second base 16 and the picker 13 to advance until the picker 11 is located at the inspection station 21.

[0079] The second aspect of this application provides a detection system suitable for panoramic inspection of sheet materials, including: an appearance inspection device and a sheet inspection device according to any one of the above; the appearance inspection device includes a support platform and the appearance inspection device; the appearance inspection device is disposed on the support platform, and the appearance inspection device can be moved to the inspection station 21 in the sheet inspection device to perform appearance inspection on the sheet material at the inspection station 21.

[0080] It should be noted that the appearance inspection device can be any existing device capable of visually recognizing and inspecting the appearance of the sheet material. The principle of its appearance inspection is existing technology and will not be elaborated upon in this embodiment. Similarly, the way the appearance inspection device can move can also be based on existing technology, such as using an existing horizontal rotary manipulator to drive the appearance inspection device to rotate along the horizontal plane.

[0081] In this embodiment, the appearance inspection device can move alternately with the material handling hand 11 onto the inspection table 20. Specifically, after the first pair of measuring holes 12 and the second pair of measuring holes 22 are aligned and the inspection mechanism performs a re-inspection, the material handling hand 11 can move to the clearance area, at which point the material sheet is still placed on the inspection table 20. Then, the appearance inspection device moves to the inspection station 21 to perform an overall appearance inspection of the material sheet, preventing any appearance defects.

[0082] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for detecting duplicate films, characterized in that, include: Material handling mechanism (10) and testing station (20); The material handling mechanism (10) is equipped with a material handling hand (11); The testing station (21) is provided on the testing table (20); The material handling hand (11) is used to acquire the material sheet and to transfer the material sheet to the inspection station (21). The material handling hand (11) is provided with a first pair of measuring holes (12) in the middle. The testing station (20) is provided with a second pair of testing holes (22); When the material handling hand (11) is located at the detection station (21), the first pair of measuring holes (12) and the second pair of measuring holes (22) are aligned along the hole axis, so that the detection sound wave can pass through the first pair of measuring holes (12) and the second pair of measuring holes (22) to form the detection of the thickness of the material sheet.

2. The sheet detection device according to claim 1, characterized by It also includes a dust removal mechanism (30); The dust removal mechanism (30) includes an adsorption port (31); The adsorption port (31) is located at the detection station (21).

3. The duplicate film detection device according to claim 2, characterized in that, The dust removal mechanism (30) also includes: a slide rail (32), a support (33), an adsorption tube (34), and a dust removal drive component (35); The adsorption port (31) is disposed on the adsorption tube (34); The adsorption tube (34) is disposed on the support (33); The support member (33) is slidably disposed on the slide rail (32); The output end of the dust removal drive (35) is connected to the support (33) so as to drive the adsorption tube (34) to slide over the material sheet.

4. The duplicate film inspection apparatus according to any one of claims 1 to 3, characterized in that, The testing platform (20) includes: a first lifting drive component (23), a platform body (24), a base (25), and a telescopic column (26); The telescopic column (26) is disposed on the base (25), and the telescopic column (26) can extend and retract in the vertical direction; The platform (24) is disposed on the telescopic column (26), and the testing station (21) is disposed on the platform (24). The first lifting drive (23) is disposed on the base (25), and the output end of the first lifting drive (23) is connected to the platform (24).

5. The duplicate film detection device according to claim 1, characterized in that, The material handling mechanism (10) includes: a material handling rack (13) and a rotary drive (14). The material handling hand (11) is rotatably mounted on the material handling frame (13). The rotary drive (14) is disposed on the material picker (13), and the output end of the rotary drive (14) is connected to the material picker (11).

6. The duplicate film detection device according to claim 5, characterized in that, The material handling mechanism (10) includes: a second lifting drive (15), a second base (16), and a second telescopic column (17). The second telescopic column (17) is disposed on the second base (16), and the second telescopic column (17) can extend and retract in the vertical direction; The material handling rack (13) is disposed on the second telescopic column (17); The second lifting drive (15) is disposed on the second base (16), and the output end of the second lifting drive (15) is connected to the material picker (13).

7. The duplicate film detection device according to claim 6, characterized in that, The material handling mechanism (10) includes: a horizontal drive component (18); The output end of the horizontal drive (18) is connected to the second base (16) to drive the second base (16) to move in the horizontal direction.

8. The duplicate film detection device according to claim 1, characterized in that, The material handling hand (11) is equipped with several vacuum suction cups (111).

9. The duplicate film detection device according to claim 1, characterized in that, An ultrasonic transmitter is provided inside the second pair of measuring holes (22); An ultrasonic receiver is provided inside the first pair of measuring holes (12).

10. A detection system suitable for panoramic inspection of material sheets, characterized in that, include: The appearance inspection device and the duplicate inspection device according to any one of claims 1 to 9; The appearance inspection device includes a support platform and an appearance inspection device; The appearance inspection device is set on the support platform, and the appearance inspection device can be moved to the inspection station (21) in the composite sheet inspection device to perform appearance inspection on the sheet at the inspection station (21).

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