Glue pressing mechanism and glue pressing equipment

Abstract

The utility model discloses a glue pressing mechanism and glue pressing equipment, the glue pressing mechanism is used for pressing a glue film on a workpiece, the glue pressing mechanism comprises a frame body, and the frame body comprises a frame body opening penetrating through a first side and a second side of the frame body; the glue pressing assembly is arranged on the first side, the glue pressing assembly comprises a glue pressing part, and the glue pressing part can stretch out and draw back in the direction perpendicular to the extending direction of the opening of the frame body; and the detection assembly is arranged on the second side and comprises a detection part, and the detection part can stretch out and draw back in the direction perpendicular to the extending direction of the opening of the frame body. According to the embodiment of the invention, the adhesive pressing assembly and the detection assembly are integrated on the frame body, and the adhesive pressing part of the adhesive pressing assembly is responsible for effectively pressing an adhesive film on a workpiece, so that the adhesive film and a tab are firmly fixed; meanwhile, the detection part of the detection assembly is used for evaluating the insulation performance of the workpiece and finding out the short circuit problem in the stacked core in time. The design not only improves the quality and efficiency in the battery production process, but also enhances the safety and reliability of the battery.

Description

Technical Field

[0001] This disclosure generally relates to the field of lithium battery manufacturing technology. More specifically, this disclosure relates to a bonding mechanism. Furthermore, this disclosure also relates to a bonding device. Background Technology

[0002] In lithium battery production, after the electrodes / separators are stacked in a Z-shape, the battery cells are placed in a pressing fixture using a synchronous belt unloading clamp for U-shaped adhesive application. The positive and negative foil tabs on the battery cells are then welded to the external tabs, and adhesive is applied and pressed at the solder joints to protect the solder marks. Existing tab adhesive application mechanisms cannot ensure sufficient contact and adhesion between the upper and lower surfaces of the positive and negative tab solder joints, leading to a risk of the solder protective adhesive detaching after electrolyte immersion, thus affecting battery safety.

[0003] In addition, before lithium batteries leave the factory, the insulation performance and internal resistance of the cells need to be tested to ensure the safety and performance of the batteries. However, under normal circumstances, the short-circuit test of the cells usually needs to be performed separately and cannot be carried out in conjunction with other steps, resulting in a complicated process.

[0004] In view of this, there is an urgent need to provide a pressing mechanism and pressing equipment so that the solder protective adhesive on the upper and lower sides of the electrode can fully contact and fix the electrode, while also detecting short circuits inside the stacked core, saving process steps and improving the quality and efficiency of lithium battery production. Utility Model Content

[0005] In order to solve at least one or more of the technical problems mentioned above, this disclosure proposes a pressing mechanism and pressing equipment in several aspects. This solution can not only fix the tabs more firmly, but also monitor the short circuit inside the stacked core in a timely manner, thereby improving the production quality and efficiency of the battery.

[0006] In a first aspect, this disclosure provides a pressing mechanism for pressing an adhesive film on a workpiece, comprising: a frame including a first side and a second side disposed opposite to each other in a first direction, a frame opening penetrating the first side and the second side, the workpiece being able to partially extend into the frame opening along the first direction, and the workpiece having an attachment plane for the adhesive film, the first direction being parallel to the attachment plane of the adhesive film; a pressing assembly disposed on the first side, the pressing assembly including a pressing portion facing the adhesive film, the pressing portion being extendable and retractable along a second direction to approach or move away from the adhesive film, the second direction being perpendicular to the attachment plane of the adhesive film; and a detection assembly disposed on the second side, the detection assembly including a detection portion facing the workpiece, the detection portion being extendable and retractable along the second direction to approach or move away from the workpiece and detect performance parameters of the workpiece.

[0007] In some embodiments, the adhesive pressing portion includes an adjustment block extending along a third direction and a plurality of adhesive pressing blocks. The plurality of adhesive pressing blocks are spaced apart along the third direction, and the spacing between two adjacent adhesive pressing blocks is adjustable on the adjustment block. The third direction is parallel to the adhesion plane of the adhesive film and perpendicular to the first direction.

[0008] In some embodiments, the adjusting block has an elongated through hole extending along the third direction, the pressing block includes a pressing sheet and an adjusting sheet, and the pressing sheet has a pressing surface facing the adhesive film, the pressing surface being close to the adhesive film to press it onto the workpiece, the adjusting sheet passing through the elongated through hole, and at least one end of the adjusting sheet passing through the elongated through hole being detachably connected to the pressing sheet.

[0009] In some embodiments, the elongated through hole extends through the adjusting block along the first direction, the pressure plate and the adjusting plate are integrally formed and arranged in a U-shape opposite each other along the second direction, the pressure plate part further includes adjusting bolts that are simultaneously connected to the extension ends of the pressure plate and the adjusting plate, the adjusting bolts are respectively connected to the extension ends of the pressure plate and the adjusting plate to lock the pressure plate and the adjusting plate relative to each other.

[0010] In some embodiments, the detection unit includes a limiting block extending along the third direction and a plurality of probes, the plurality of probes being spaced apart along the third direction, and the spacing between two adjacent probes being adjustable within the limiting block.

[0011] In some embodiments, the second side is provided with a support platform extending along the third direction. The support platform is located at the middle of the frame opening along the second direction to support the workpiece extending into the frame opening. The second side is also provided with a first detection camera and a second detection camera arranged opposite to each other along the second direction. The first detection camera and the second detection camera are respectively located at both ends of the frame opening along the second direction to capture images of the upper and lower surfaces of the workpiece.

[0012] In some embodiments, the system further includes a first lighting component and a second lighting component disposed on the first side and disposed opposite to each other along the second direction. The first lighting component and the second lighting component are respectively disposed at both ends of the frame opening along the second direction. The first lighting component includes a first lighting bracket extending outward from the first side relative to the frame and a first lighting element disposed at the distal end of the first lighting bracket. The second lighting component includes a second lighting bracket extending outward from the first side relative to the frame and a second lighting element disposed at the distal end of the second lighting bracket. The light emitted by the first lighting element and the second lighting element is directed toward the workpiece.

[0013] In some embodiments, the adhesive pressing assembly includes an upper adhesive pressing portion and a lower adhesive pressing portion disposed at both ends of the frame opening along the second direction. The upper adhesive pressing portion and the lower adhesive pressing portion are movable relative to each other along the second direction to abut against the adhesive film from the upper and lower sides of the workpiece, respectively.

[0014] In some embodiments, the adhesive pressing mechanism includes a plurality of driving members, one of which drives the detection part to extend and retract along the second direction, and another driving member drives the adhesive pressing part to extend and retract along the second direction.

[0015] In a second aspect, this disclosure provides a pressure bonding apparatus, the pressure bonding apparatus including a film applicator and the aforementioned pressure bonding apparatus, the film applicator being used to apply the adhesive film to the workpiece on the pressure bonding apparatus.

[0016] The adhesive pressing mechanism and equipment described above, in this embodiment, by setting an adhesive pressing assembly on the frame, allows the adhesive film on the workpiece to be pressed tightly by the pressing part on the assembly. Additionally, the frame is equipped with a detection assembly, the detection part of which can detect the insulation performance of the workpiece. This solution not only secures the adhesive film and electrode tabs more firmly but also allows for timely monitoring of short circuits within the stacked core, improving battery production quality and efficiency. Furthermore, in some embodiments, by setting a first detection camera and a second detection camera, the presence or absence of protective adhesive and misalignment of the adhesive tape on the workpiece can be detected. Attached Figure Description

[0017] The above and other objects, features, and advantages of exemplary embodiments of this disclosure will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0018] Figure 1 A schematic diagram of the adhesive bonding mechanism disclosed herein is shown;

[0019] Figure 2 A schematic diagram of the structure of the first side of the adhesive bonding mechanism disclosed herein is shown;

[0020] Figure 3 This diagram shows a partial enlarged view of the structure of the adhesive bonding mechanism in this disclosure, where no battery cell is installed on the first side.

[0021] Figure 4 A schematic diagram of the structure of the second side of the adhesive bonding mechanism disclosed herein is shown;

[0022] Figure 5 A partial enlarged view of the detection component on the second side of the adhesive bonding mechanism disclosed herein is shown. Detailed Implementation

[0023] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0024] It should be understood that the terms “comprising” and “including” used in this disclosure and claims indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0025] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure. As used in this disclosure and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this disclosure and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0026] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0027] The specific embodiments disclosed herein will now be described in detail with reference to the accompanying drawings.

[0028] like Figure 1As shown, this disclosure provides a pressing mechanism for pressing an adhesive film on a workpiece, comprising: a frame opening 62 extending through the first and second sides disposed opposite each other in a first direction, the workpiece being able to partially extend into the frame opening 62 along the first direction, and the workpiece having an attachment plane for the adhesive film, the first direction being parallel to the attachment plane of the adhesive film; a pressing assembly 10 disposed on the first side, the pressing assembly 10 including a pressing portion facing the adhesive film, the pressing portion being extendable and retractable along a second direction to approach or move away from the adhesive film, the second direction being perpendicular to the attachment plane of the adhesive film; and a detection assembly 20 disposed on the second side, the detection assembly 20 including a detection portion facing the workpiece, the detection portion being extendable and retractable along the second direction to approach or move away from the workpiece and detect the performance parameters of the workpiece.

[0029] In this solution, the adhesive pressing mechanism includes a frame 60, and an adhesive pressing assembly 10 and a detection assembly 20 mounted on the frame 60. Specifically, the frame 60 is a plate-like structure with a preset thickness, including a first side and a second side disposed opposite to each other in a first direction. Furthermore, a frame opening 62 is provided in the middle region of the plate-like structure, penetrating the first and second sides of the frame 60. In use, the workpiece can be partially inserted into the frame opening 62 along the first direction. The workpiece in this solution has an adhesive film attachment plane, and the first direction is parallel to the adhesive film attachment plane.

[0030] Additionally, a pressure-adhesion assembly 10 is fixedly mounted on the surface of the first side of the frame 60. The pressure-adhesion assembly 10 includes a pressure-adhesion portion facing the adhesive film on the workpiece. The pressure-adhesion portion can extend perpendicularly to the frame opening 62 and retract along a second direction to approach or move away from the adhesive film, wherein the second direction is perpendicular to the adhesion plane of the adhesive film, i.e., the second direction is perpendicular to the first direction. A detection assembly 20 is fixedly mounted on the surface of the second side of the frame 60. The detection assembly 20 includes a detection portion facing the workpiece. The detection portion can retract along the second direction to approach or move away from the workpiece, thereby detecting the performance parameters of the workpiece.

[0031] It is worth noting that the frame 60 in this solution is a vertically placed plate-like structure with a preset extension thickness and a preset extension height. The first direction refers to the extension direction of the thickness of the frame 60, the second direction refers to the extension direction of the height of the frame 60, and the third direction refers to the extension direction of the width of the frame 60.

[0032] In this design, the workpiece refers to the tab 90 on the battery cell. During use, the battery cell is moved to this station via a turntable clamp. The turntable clamps the battery cell body, and the exposed portion of the welding tab 90 extends into the frame opening 62 along a first direction. The adhesive pressing assembly 10 controls the adhesive pressing part to move along a second direction toward the frame opening 62, pressing the protective adhesive pre-applied or attached to the welding area of ​​the battery cell tab 90 firmly, ensuring full adhesion to the tab 90. After the operation is completed, the adhesive pressing assembly 10 controls the adhesive pressing part to move along the second direction away from the frame opening 62, thus returning to its initial position. Additionally, in this design, the detection assembly 20 can also control the detection part to move along the second direction toward the frame opening 62 to contact the tab 90 and detect the insulation resistance value inside the battery cell. After the detection is completed, the detection assembly 20 controls the detection part to move along the second direction away from the frame opening 62, thus returning to its initial position.

[0033] The adhesive pressing mechanism disclosed herein not only enables full contact and bonding between the solder protective adhesive and the cell tab 90, improving the battery's sealing and safety, but also detects short circuits inside the stacked cells, saving process steps and improving the quality and efficiency of lithium battery production.

[0034] Those skilled in the art will understand that the above solution is only an example of using tab 90 as a clamping workpiece. In other solutions, the workpiece can be other structures that need to be clamped and pasted.

[0035] In one specific implementation, the adhesive pressing mechanism also includes a support base with a mounting groove, and one end of the frame 60 is inserted into the mounting groove and thus fixed to the support base.

[0036] like Figure 2 and Figure 3 As shown, in a specific embodiment, the adhesive pressing part includes an adjustment block 12 extending along a third direction and a plurality of adhesive pressing blocks 13. The plurality of adhesive pressing blocks 13 are spaced apart along the third direction, and the spacing between two adjacent adhesive pressing blocks 13 is adjustable on the adjustment block 12. The third direction is parallel to the adhesion plane of the adhesive film and perpendicular to the first direction.

[0037] Specifically, the adjusting block 12 has an elongated through hole 121 extending along the third direction, the pressing block 13 includes a pressing sheet 132 and an adjusting sheet 131, and the pressing sheet 132 has a pressing surface facing the adhesive film, the pressing surface is close to the adhesive film to press it onto the workpiece, the adjusting sheet 131 passes through the elongated through hole 121, and at least one end of the adjusting sheet 131 passing through the elongated through hole 121 is detachably connected to the pressing sheet 132.

[0038] The elongated through hole 121 extends through the adjusting block 12 along the first direction. The pressing sheet 132 and the adjusting piece 131 are integrally formed and arranged in a U-shape opposite each other along the second direction. The pressing part also includes an adjusting bolt 133 that is connected to the extension end of the pressing sheet 132 and the extension end of the adjusting piece 131. The adjusting bolt 133 connects the extension ends of the pressing sheet 132 and the adjusting piece 131 respectively to lock the pressing sheet 132 and the adjusting piece 131 relative to each other.

[0039] In this plan, please refer to Figure 1 The adhesive pressing mechanism includes multiple driving components, one of which drives the connected detection unit to extend and retract along the second direction. Specifically, the driving component is a cylinder 11 mounted on the first side of the frame 60, and the cylinder 11 includes two cylinder rods.

[0040] The adhesive pressing section in this design includes an adjusting block 12 and multiple adhesive pressing blocks 13. Specifically, the adjusting block 12 extends along a third direction and is fixedly connected to two cylinder rods. The multiple adhesive pressing blocks 13 are spaced apart on the adjusting block 12 along the third direction, and the position of each adhesive pressing block 13 on the adjusting block 12 is adjustable.

[0041] More specifically, the adjusting block 12 is a cuboid with a long through hole 121 extending along the third direction in the middle. The opening direction of the long through hole 121 is the same as the direction of the frame opening 62 on the frame 60. The pressure block 13 is U-shaped and includes a pressure plate 132 and an adjusting plate 131 spaced apart. One end of the pressure plate 132 and the adjusting plate 131 are connected by a connecting part, and the other extended end is connected by an adjusting bolt 133. During installation, the adjusting plate 131 of the pressure block 13 is inserted into the long through hole 121, and the adjusting bolt 133 locks the pressure plate 132 and the adjusting plate 131 relative to each other, thus fixing the pressure block 13 onto the adjusting block 12. When replacing or removing the pressure block 13, the adjusting bolt 133 can be opened to remove the pressure block 13 from the adjusting block 12. In addition, the pressure block 13 in this solution can also move along the length direction of the adjustment block 12, thereby adjusting the spacing between multiple pressure blocks 13, wherein the length direction of the adjustment block 12 is the third direction.

[0042] The pressure plate 132 in this design has a pressure surface facing the adhesive film, which is close to the adhesive film to press it firmly onto the workpiece. During use, the extension and retraction of the cylinder rod drives the adjusting block 12 to move up and down, allowing the pressure plate 132 on the pressure block 13 to contact the battery electrode tab 90. When the cylinder rod extends, the adjusting block 12 moves downward, and the pressure plate 132 on the pressure block 13 descends accordingly, its pressure surface contacting the adhesive film and pressing it firmly onto the electrode tab 90. Conversely, when the cylinder rod retracts, the adjusting block 12 moves upward, and the pressure plate 132 rises accordingly, causing the pressure block 13 to separate from the electrode tab 90, releasing the electrode tab 90 from its pressed state. This design allows the pressure assembly 10 to precisely control the contact between the pressure block 13 and the electrode tab 90, achieving efficient pressure application and subsequent release.

[0043] In this solution, since the spacing between the positive tab 91 and the negative tab 92 on different batches of battery cells is different, the spacing between the adhesive blocks 13 can be adjusted to accommodate tabs 90 with different spacings, making it more adaptable and improving the user experience.

[0044] In one specific embodiment, the adhesive pressing part includes an upper adhesive pressing part and a lower adhesive pressing part disposed at both ends of the frame opening 62 along the second direction. The upper adhesive pressing part and the lower adhesive pressing part are movable relative to each other along the second direction to abut against the adhesive film from the upper side and the lower side of the workpiece, respectively.

[0045] In this design, the adhesive bonding assembly 10 includes an upper adhesive bonding assembly and a lower adhesive bonding assembly disposed at both ends of the frame opening 62 along a second direction. The upper adhesive bonding assembly includes a cylinder fixed to the surface of the frame 60 above the frame opening 62, and an upper adhesive bonding section. The cylinder includes two cylinder rods, and the upper adhesive bonding section includes an adjusting block 12 and multiple adhesive bonding blocks 13, with the cylinder rods fixedly connected to the adjusting block 12. The lower adhesive bonding assembly includes a cylinder fixed to the surface of the frame 60 below the frame opening 62, and a lower adhesive bonding section. The cylinder also includes two cylinder rods, and the lower adhesive bonding section includes an adjusting block 12 and multiple adhesive bonding blocks 13, with the cylinder rods fixedly connected to the adjusting block 12. In use, the tabs 90 are placed between the upper and lower adhesive bonding sections. The two cylinders control the relative movement of the upper and lower adhesive bonding sections, squeezing the tabs 90 from the upper and lower sides, making the tabs 90 adhere more firmly.

[0046] In this design, the upper and lower pressure adhesive components are completely symmetrical, and the upper and lower pressure adhesive sections of the upper and lower pressure adhesive components are also completely symmetrical. Specifically, both the upper and lower pressure adhesive sections include adjusting blocks 12 and multiple pressure adhesive blocks 13. The adjusting blocks 12 on both the upper and lower pressure adhesive sections are cuboids with a long through hole 121 in the middle. The pressure adhesive blocks 13 on both the upper and lower pressure adhesive sections are U-shaped, and include pressure adhesive sheets 132 and adjusting sheets 131 spaced apart. One end of the pressure adhesive sheet 132 and the adjusting sheet 131 are connected by a connecting part, and the other end is connected by an adjusting bolt 133.

[0047] In one specific implementation, the upper and lower adhesive pressing sections of the upper and lower adhesive pressing assemblies 10 are completely symmetrical. Both the upper and lower adhesive pressing sections include an adjustment plate, which is a cuboid and has an adjustment surface that abuts against the tabs 90. This adjustment surface has a preset extension length and is planar. The adjustment surface can accommodate tabs 90 at different intervals on the battery cell. In this embodiment, the adjustment plate is a plate-like structure without a through hole in the middle. That is, the difference between this embodiment and the above-mentioned embodiment is that an adjustment plate is used to achieve the functions of the adjustment block 12 and multiple adhesive pressing blocks 13 in the above-mentioned embodiment.

[0048] Those skilled in the art will also understand that in other embodiments, the upper and lower pressure adhesive portions of the upper and lower pressure adhesive assemblies 10 are asymmetrical structures. For example, the upper pressure adhesive portion includes an adjusting block 12 and multiple pressure adhesive blocks 13, while the lower pressure adhesive portion includes only an adjusting plate. Alternatively, the upper pressure adhesive portion includes only an adjusting plate, while the lower pressure adhesive portion includes an adjusting block 12 and multiple pressure adhesive blocks 13. This design allows the adjusting block 12 to directly apply concentrated pressure to the tab 90 for precise pressure adhesive application, while the adjusting plate provides stable load-bearing capacity for the tab 90 and the adjusting block 12, ensuring the stability of the tab 90 and the precise positioning of the pressure adhesive blocks 13 during the pressure adhesive application process.

[0049] Those skilled in the art will understand that when the adhesive pressing mechanism is equipped with only the upper adhesive pressing component 10 or the lower adhesive pressing component 10, a support plate can be added in the middle area of ​​the frame opening 62 to support the electrode 90 in order to effectively press the tab 90. In actual use, the tab 90 is placed on the support plate for adhesive pressing. When only the upper adhesive pressing component 10 is present, the upper adhesive pressing block 13 will move towards the support plate, working together with the support plate to apply pressure to the tab 90, thus squeezing the tab 90; if the lower adhesive pressing component 10 is present, the lower adhesive pressing block 13 will move towards the support plate, squeezing the tab 90 together with the support plate. This design still ensures that the tab 90 is pressed tightly, guaranteeing the stability of the adhesive pressing process and the tight bonding between the solder protective adhesive and the tab 90.

[0050] like Figure 4and Figure 5 As shown, in a specific embodiment, the detection unit includes a limiting block 22 extending along the third direction and a plurality of probes 231, the plurality of probes 231 being spaced apart along the third direction, and the spacing between two adjacent probes 231 being adjustablely disposed on the limiting block 22.

[0051] In this design, the adhesive pressing mechanism further includes a second driving member, which drives the adhesive pressing part to extend and retract along the second direction. Specifically, the second driving member is a cylinder 21 mounted on the surface of the second side of the frame 60, and the cylinder 21 includes two cylinder rods. The detection part includes a limiting block 22, a plurality of sliders 23, and a probe 231 disposed on the sliders 23, wherein the cylinder rods are fixedly connected to the limiting block 22.

[0052] Specifically, the limiting block 22 is a cuboid with a long through hole 121 in the middle. The opening direction of the long through hole 121 is the same as the direction of the frame opening 62 on the frame 60. The structure of the slider 23 in this solution can be the same as that of the pressure block 13, both being U-shaped parts. After one side wall of the U-shaped part extends into the long through hole 121, the open end of the slider 23 is adjusted by the adjusting bolt 133, and a probe 231 is provided on the outer surface of the other side wall. In use, the slider 23 is slidably positioned in the long through hole 121, thereby adjusting the spacing between the probes 231 so that the probes 231 are correspondingly set with the tabs 90 at different spacings.

[0053] In one specific implementation, the second side is provided with a support platform 61 extending along the third direction. The support platform 61 is located at the middle of the frame opening 62 along the second direction to support the workpiece extending into the frame opening 62. The second side is also provided with a first detection camera 41 and a second detection camera 42 arranged opposite to each other along the second direction. The first detection camera 41 and the second detection camera 42 are respectively located at both ends of the frame opening 62 along the second direction to photograph the upper and lower surfaces of the workpiece.

[0054] In this design, the second side of the frame 60 is provided with a plate-shaped support platform 61 for supporting the battery cell tab 90. The support platform 61 is vertically aligned with the detection unit. In use, the exposed portion of the tab 90 is supported on the support platform 61. The cylinder on the adhesive pressing assembly 10 controls the adhesive pressing block 13 to move up and down, pressing the exposed solder protective adhesive onto the exposed solder area to ensure adhesion. The cylinder on the adhesive pressing assembly 10 controls the limit block 22 to move down, thereby causing the probe 231 to contact the tab 90 to detect the insulation resistance of the battery cell.

[0055] Those skilled in the art will understand that when the adhesive pressing mechanism is equipped with only the upper adhesive pressing assembly 10 or the lower adhesive pressing assembly 10, the support platform 61 and the adjustment plate can be configured as an integrally formed plate-shaped part, with one end protruding from the surface of the first side and the other end protruding from the surface of the second side. That is, the protrusion at one end of the integrally formed plate-shaped part is aligned with the adhesive pressing part, and the protrusion at the other end is aligned with the detection part.

[0056] In this design, the adhesive pressing mechanism also includes a first inspection camera 41 and a second inspection camera 42 mounted on the second side of the frame 60. Specifically, the first inspection camera 41 is mounted on the frame 60 above the frame opening 62, and the second inspection camera 42 is mounted on the frame 60 below the frame opening 62. The lenses of both the first inspection camera 41 and the second inspection camera 42 are perpendicular to the frame opening 62 of the frame 60, facilitating direct imaging of the upper and lower surfaces of the workpiece.

[0057] More specifically, the first detection camera 41 is positioned in the area between the two cylinder rods, and the second detection camera 42 is positioned opposite to the first detection camera 41. In this design, since the cylinder rods are connected to the detection unit, and the detection unit is connected to probes 231, which abut against the positive electrode 91 and the negative electrode 92, the area between the probes 231 is the middle area of ​​the two electrodes 90. Positioning the first detection camera 41 directly above the middle area of ​​the electrodes 90 allows for a clearer image of the electrodes 90. This layout enables the first detection camera 41 to be directly aligned with the electrodes 90, optimizing the image capture angle and quality, thereby improving the accuracy of detecting the presence or absence of solder protective adhesive and the misalignment of the adhesive tape. This design not only ensures the efficiency of the detection process but also enhances the reliability of the detection results.

[0058] It is worth noting that the adhesive pressing block in the adhesive pressing assembly 10 may not be able to cover all areas of the tab during the pressing process, especially for the tab located on the support platform. Therefore, after the tab is placed on the support platform 61, the first detection camera 41 and the second detection camera 42 can be used to photograph the tab and detect the quality of the adhesive application. For example, whether the adhesive application is misaligned, and whether the adhesive application position correctly contacts the insulating pad of the tab. This solution, by setting the first detection camera 41 and the second detection camera 42 on the second side of the frame 60, can ensure the quality of adhesive application even in areas that the adhesive pressing block 13 cannot reach.

[0059] It is also worth noting that, in order to prevent the limiting block 22 from blocking the first inspection camera 41 from photographing the workpiece, the limiting block 22 and the slider 23 are made of transparent material (such as plastic or acrylic sheet). In addition, in order to prevent the support platform 61 from blocking the second inspection camera 42 from photographing the workpiece, the support platform 61 is made of transparent material (such as plastic or acrylic sheet).

[0060] Those skilled in the art will understand that the adjustment block 12 and the pressure block 13 can also be made of transparent materials in this solution.

[0061] In one specific embodiment, the pressing mechanism further includes a first lighting component 51 and a second lighting component 52 disposed on the first side and disposed opposite to each other along the second direction. The first lighting component 51 and the second lighting component 52 are respectively disposed at both ends of the frame opening 62 along the second direction. The first lighting component 51 includes a first lighting bracket extending outward from the first side relative to the frame 60, and a first lighting element disposed at the far end of the first lighting bracket. The second lighting component 52 includes a second lighting bracket extending outward from the first side relative to the frame 60, and a second lighting element disposed at the far end of the second lighting bracket. The light from the first lighting element and the second lighting element is directed towards the workpiece.

[0062] In this design, to improve the accuracy and efficiency of the inspection, a first lighting assembly 51 and a second lighting assembly 52 are specifically configured opposite each other on the first side of the frame 60 along the second direction. These two lighting assemblies are designed to provide sufficient light for the first inspection camera 41 and the second inspection camera 42, facilitating clear imaging and inspection of the solder protective adhesive on the battery cell tabs 90.

[0063] The first lighting assembly 51 consists of a first lighting bracket and a first lighting element. One end of the first lighting bracket is connected to the frame opening 62 of the frame 60, and the other end extends obliquely away from the first side at an angle of 45 degrees. The first lighting element is located at the far end of the first lighting bracket, and the light from the first lighting element is directed towards the workpiece to provide supplementary lighting for the detection environment below.

[0064] The second lighting assembly 52 consists of a second lighting bracket and a second lighting element. The second lighting bracket, also tilted at a 45-degree angle, is connected at one end to the frame opening 62 of the frame 60, and the other end extends away from the first side. The second lighting element is located at the far end of the second lighting bracket, and its light is directed towards the workpiece to provide supplementary lighting for the above inspection environment.

[0065] This design ensures uniform lighting for both the first and second inspection cameras 41 and 42, regardless of whether the light source is above or below. This guarantees that the presence or absence of solder protective adhesive and any misalignment of the adhesive tape can be clearly captured and identified during the inspection process. This lighting layout not only improves the accuracy of the inspection but also enhances the functionality and reliability of the entire adhesive bonding mechanism.

[0066] Those skilled in the art will understand that the design of the adhesive bonding mechanism allows for a degree of flexibility in the tilt angles of the first and second lighting brackets, and is not limited to a specific angle. This means that, in addition to 45 degrees, the tilt angles of these two lighting brackets can be adjusted according to actual testing needs and equipment layout to achieve optimal lighting effects.

[0067] The adhesive bonding mechanism disclosed herein is designed with multiple functions to improve welding quality and efficiency in the battery production process. This mechanism not only effectively adheres the solder protective adhesive to the cell tabs 90 via the adhesive bonding component 10, ensuring firmness and uniformity of the adhesion, but also integrates a detection component 20 for detecting the insulation performance of the cell, a key indicator of battery safety. Furthermore, to further ensure welding quality, the mechanism includes a first detection camera 41 and a second detection camera 42 to monitor whether the solder protective adhesive is correctly applied and whether there is any misalignment of the adhesive tape. Through this comprehensive monitoring and evaluation mechanism, the adhesive bonding mechanism can comprehensively safeguard every step of the welding process, thereby improving the overall quality and reliability of the battery.

[0068] In some embodiments, this disclosure provides a pressure bonding device, the pressure bonding device including a film application mechanism and the above-described pressure bonding mechanism, the film application mechanism being used to apply the adhesive film to the workpiece on the pressure bonding mechanism.

[0069] The bonding equipment provided in this solution optimizes the workpiece clamping operation by integrating the aforementioned bonding mechanism. This equipment not only more effectively clamps the workpiece, ensuring a tight bond between the solder protective adhesive and the cell tab 90, but also has a detection function to monitor whether the workpiece clamping degree meets preset standards. This dual-function design ensures both quality and significantly improves efficiency in the production process. Products manufactured using this equipment exhibit higher quality and faster production speeds due to its precise clamping and detection mechanisms, meeting the dual demands of high efficiency and high quality in the modern battery manufacturing industry.

[0070] While numerous embodiments of this disclosure have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of this disclosure. It should be understood that various alternatives to the embodiments of this disclosure described herein may be employed in the practice of this disclosure. The appended claims are intended to define the scope of this disclosure and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A pressure-adhesive mechanism for pressing an adhesive film onto a workpiece, characterized in that, include: A frame (60) includes a first side and a second side disposed opposite to each other in a first direction, a frame opening (62) penetrating the first side and the second side, the workpiece being able to partially extend into the frame opening (62) along the first direction, and the workpiece having an attachment plane for the adhesive film, the first direction being parallel to the attachment plane of the adhesive film. A pressure-adhesive assembly (10) is disposed on the first side. The pressure-adhesive assembly (10) includes a pressure-adhesive portion facing the adhesive film. The pressure-adhesive portion is capable of extending and retracting along a second direction to approach or move away from the adhesive film. The second direction is perpendicular to the attachment plane of the adhesive film. A detection component (20) is disposed on the second side. The detection component (20) includes a detection part facing the workpiece. The detection part is extendable and retractable along the second direction to approach or move away from the workpiece and detect the performance parameters of the workpiece.

2. The adhesive pressing mechanism according to claim 1, characterized in that, The adhesive pressing part includes an adjustment block (12) extending along a third direction and a plurality of adhesive pressing blocks (13). The plurality of adhesive pressing blocks (13) are spaced apart along the third direction, and the spacing between two adjacent adhesive pressing blocks (13) is adjustable on the adjustment block (12). The third direction is parallel to the adhesion plane of the adhesive film and perpendicular to the first direction.

3. The adhesive pressing mechanism according to claim 2, characterized in that, The adjusting block (12) has an elongated through hole (121) extending along the third direction. The pressing block (13) includes a pressing sheet (132) and an adjusting sheet (131). The pressing sheet (132) has a pressing surface facing the adhesive film. The pressing surface is close to the adhesive film to press it onto the workpiece. The adjusting sheet (131) passes through the elongated through hole (121). At least one end of the adjusting sheet (131) through the elongated through hole (121) is detachably connected to the pressing sheet (132).

4. The adhesive pressing mechanism according to claim 3, characterized in that, The elongated through hole (121) passes through the adjusting block (12) along the first direction. The pressing block (13) is U-shaped. The pressing part also includes an adjusting bolt (133) that is connected to the extension end of the pressing sheet (132) and the extension end of the adjusting piece (131). The adjusting bolt (133) connects the extension ends of the pressing sheet (132) and the adjusting piece (131) respectively to lock the pressing sheet (132) and the adjusting piece (131) relative to each other.

5. The adhesive pressing mechanism according to claim 2, characterized in that, The detection unit includes a limiting block (22) extending along the third direction and a plurality of probes (231), the plurality of probes (231) being spaced apart along the third direction, and the spacing between two adjacent probes (231) being adjustablely disposed on the limiting block (22).

6. The adhesive pressing mechanism according to claim 4, characterized in that, The second side is provided with a support platform (61) extending along the third direction. The support platform (61) is located at the middle of the frame opening (62) along the second direction to support the workpiece extending into the frame opening (62). The second side is also provided with a first detection camera (41) and a second detection camera (42) arranged opposite to each other along the second direction. The first detection camera (41) and the second detection camera (42) are respectively located at both ends of the frame opening (62) along the second direction to photograph the upper and lower surfaces of the workpiece.

7. The adhesive pressing mechanism according to claim 1, characterized in that, It also includes a first lighting component (51) and a second lighting component (52) disposed on the first side and disposed opposite to each other along the second direction. The first lighting component (51) and the second lighting component (52) are respectively disposed at both ends of the frame opening (62) along the second direction. The first lighting component (51) includes a first lighting bracket that extends outward from the first side relative to the frame (60) at an incline, and a first lighting element disposed at the far end of the first lighting bracket. The second lighting component (52) includes a second lighting bracket that extends outward from the first side relative to the frame (60) at an incline, and a second lighting element disposed at the far end of the second lighting bracket. The light from the first lighting element and the second lighting element is directed toward the workpiece.

8. The adhesive pressing mechanism according to claim 1, characterized in that, The adhesive pressing assembly (10) includes an upper adhesive pressing part and a lower adhesive pressing part disposed at both ends of the frame opening (62) along the second direction. The upper adhesive pressing part and the lower adhesive pressing part can move relative to each other along the second direction to abut against the adhesive film from the upper side and the lower side of the workpiece, respectively.

9. The adhesive pressing mechanism according to claim 1, characterized in that, The adhesive pressing mechanism includes multiple driving components. One driving component drives the detection unit to extend and retract along the second direction, and another driving component drives the adhesive pressing unit to extend and retract along the second direction.

10. A pressure bonding device, characterized in that, It includes a film application mechanism and an adhesive pressing mechanism according to any one of claims 1 to 9.

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