Battery pack gluing verification tool

Abstract

The utility model provides a kind of battery pack gluing verification tool, it is related to power battery tool technical field, including rack, gluing assembly, profiling piece and glue pressing mechanism, gluing assembly includes substrate, gluing sheet and annular limit strip, substrate is fixed in rack, gluing sheet is detachably set in substrate, limit strip and gluing sheet form gluing area by enclosing;Profiling piece size weight matching real battery cell group, outer contour adapts limit strip inner profile, vertical direction uses transparent material, side wall is equipped with ranging element;Glue pressing mechanism is pressed to the top surface of profiling piece.The tool eliminates the distortion of glue layer form caused by film laying operation on the inner bottom surface of box through transparent profiling piece and gluing sheet, realizes nondestructive observation;Simulate battery cell group working condition using the self-weight of profiling piece, replace real box with substrate, break through material dependence and shorten cycle;Integrated glue pressing force and thickness monitoring, complete gluing area, thickness and pressure parameter closed-loop verification in single tool, radically solve the problem of complicated operation, precision distortion and long cycle.

Description

Technical Field

[0001] This utility model relates to the field of power battery tooling technology, and in particular to a battery pack adhesive coating verification tooling. Background Technology

[0002] In the field of power battery technology, as the CTP (Cell to Pack) structure gradually becomes mainstream, the modular design of battery packs is becoming increasingly popular. This design eliminates the traditional multi-layered structure where cells are first assembled into small modules and then integrated into a battery pack. Instead, a large number of cells are directly stacked and extruded into a large module, which is then installed into a housing. In this structure, the bottom of the cells is fixed to the housing with adhesive. The quality of the adhesive bonding directly affects the structural stability, vibration and shock resistance, and thermal management efficiency of the battery pack. Therefore, the verification of the adhesive coating process—including the adhesive coating area, uniformity, and thickness control—has become a key step in ensuring the reliability of the battery pack.

[0003] Currently, industry-wide verification of adhesive application on the bottom of large-module battery cells generally suffers from complex operations, insufficient precision, and low efficiency. A common practice is to directly assemble modules using actual battery cells for verification. However, after pressing the actual battery module into the housing and applying adhesive, the cells are difficult to remove without damage due to structural constraints, making it impossible to directly observe the actual state of the adhesive layer. Forced disassembly not only damages the adhesive layer morphology and affects data accuracy but also further increases the workload by cleaning residual adhesive. To prevent adhesive from adhering to the bottom of the battery cells and being difficult to clean, a thin film or tape is usually laid flat on the bottom surface of the housing, adhesive is applied, and then another film is placed on top, with the adhesive layer positioned between the two films. While this method avoids adhesive contamination, the process is cumbersome, labor-intensive, and time-consuming, and there is a risk of distortion in the adhesive layer morphology due to uneven coating or wrinkles.

[0004] On the other hand, adhesive application validation needs to be conducted under different pressure conditions to simulate the actual pressing process and determine the optimal pressing parameters. Different pressures significantly affect the adhesive spreading area and final thickness, thus requiring multiple sets of repeatable experiments. Traditional validation methods often rely on multiple dedicated tooling or temporary devices, resulting in numerous process interruptions. Furthermore, they typically can only be implemented after the actual materials such as the casing and battery cells are in place, severely impacting the development cycle. Utility Model Content

[0005] In view of this, this utility model proposes a battery pack adhesive coating verification fixture to solve the technical problems in the prior art, such as the distortion of adhesive layer shape due to the cumbersome film winding operation, and the excessively long verification cycle due to the reliance on actual boxes and cells.

[0006] The technical solution of this utility model is implemented as follows: This utility model provides a battery pack adhesive coating verification fixture, comprising: frame; The adhesive coating assembly includes a substrate, an adhesive coating sheet, and a limiting strip. The substrate is fixedly mounted on a frame. The adhesive coating sheet is detachably and horizontally mounted on the upper surface of the substrate. The limiting strip has a ring-shaped structure and is fixedly mounted on the top surface of the adhesive coating sheet, forming an adhesive coating area together with the adhesive coating sheet. The contouring part is square, and its size and weight are configured to match the battery cell assembly. The outer contour of the contouring part is adapted to the inner contour of the limiting strip. The vertical direction of the contouring part is made of transparent material, and the side wall of the contouring part is provided with a ranging element. The pressure bonding mechanism, mounted on the frame, is used to apply pressure to the top surface of the conformal part.

[0007] Based on the above technical solution, preferably, the coating film is made of a transparent material, and the upper surface of the substrate is engraved with uniformly distributed grid lines.

[0008] Based on the above technical solution, preferably, the contouring component includes a top plate, a bottom plate, two end plates, and two side plates. The two end plates and two side plates surround and are fixed between the top plate and the bottom plate. The end plates and side plates are made of metal, and the top plate and bottom plate are made of transparent material.

[0009] Based on the above technical solution, preferably, it also includes a translation mechanism disposed on the frame, the translation mechanism being used to drive the adhesive pressing mechanism to translate along the width direction of the substrate.

[0010] Based on the above technical solution, preferably, a number of adhesive application components are fixedly arranged at intervals on the top of the frame along the translational direction of the adhesive pressing mechanism.

[0011] Based on the above technical solution, preferably, the pressing mechanism includes a fixed truss, a mounting frame, a pressure plate, and a lifting module. The fixed truss is horizontally slidably disposed on the upper part of the frame, the mounting frame is disposed inside the fixed truss, the lifting module is fixedly disposed on the top of the fixed truss and is used to drive the mounting frame to move up and down along the fixed truss, the pressure plate is floatingly disposed on the bottom of the mounting frame and is used to apply pressure to the top surface of the conforming part, and a pressure sensor is disposed on the bottom of the mounting frame.

[0012] Based on the above technical solution, preferably, the lifting module includes a first hand crank, a worm gear reducer, a transmission shaft, and a first lead screw. Two worm gear reducers are spaced apart at the top of the fixed truss. One end of the first lead screw is fixedly connected to the mounting frame, and the other end is connected to the worm gear reducer. The two worm gear reducers are connected by a transmission shaft. The first hand crank is connected to one of the worm gear reducers.

[0013] Based on the above technical solution, preferably, the translation mechanism includes a hand crank, a second lead screw and a nut seat. The second lead screw is horizontally rotatably mounted on the frame. The length direction of the second lead screw is consistent with the moving direction of the adhesive pressing mechanism. One end of the second lead screw extending out of the frame is fixedly connected to the hand crank. The nut seat is mounted on the second lead screw and is fixedly connected to the lower end of the fixed truss through a connecting plate.

[0014] Based on the above technical solution, preferably, each of the glue-coating components has a mounting hole on the frame corresponding to its center, and the fixed truss has a locking hole that matches the mounting hole. The mounting hole and the locking hole are fixedly connected by a positioning pin.

[0015] The present invention has the following advantages over the prior art: This utility model discloses a battery pack adhesive coating verification fixture. Through the collaborative design of the adhesive coating sheet and the transparent contoured part, it directly eliminates the problem of adhesive layer morphology distortion caused by traditional film-laying operations on the bottom surface of the box, and realizes non-destructive observation of the adhesive coating area. At the same time, by utilizing the characteristic of the contoured part matching the weight of the real battery cell assembly, combined with the substrate simulating the box environment, it completely eliminates the dependence on real materials and significantly shortens the verification cycle. With the precise reproduction of assembly conditions by the pressing mechanism and the ability to monitor the side wall thickness of the contoured part, the fixture integrates closed-loop verification of adhesive coating area, thickness and pressure parameters, fundamentally solving the technical problems of cumbersome operation, accuracy distortion and long cycle in the background technology.

[0016] By engraving evenly distributed grid lines on the upper surface of the substrate and setting the adhesive film to a transparent material, the corresponding positions of the grid lines in the adhesive area can be clearly seen through the adhesive film, which facilitates more accurate calculation of the adhesive area after pressing.

[0017] By fixing several glue-applying components at intervals along the translational direction of the glue-applying mechanism on the top of the frame, multiple glue-applying components can be used with the same contoured parts to apply different types of glue to the corresponding glue-applying areas of different glue-applying components. The translational mechanism drives the glue-applying mechanism to move sequentially above the corresponding glue-applying components, thereby completing the glue-applying operation of different glues under the same pressure environment, and observing the glue-applying area, thickness, appearance and glue consumption data of different glues. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the battery pack adhesive verification fixture disclosed in this utility model; Figure 2 This is a three-dimensional structural diagram of the adhesive coating component and the contouring part disclosed in this utility model; Figure 3 This is a three-dimensional structural diagram of the pressure bonding assembly disclosed in this utility model; Figure 4 This is a three-dimensional structural diagram of the translation mechanism disclosed in this utility model; Figure label: 1. Frame; 11. Mounting holes; 12. Positioning pins; 2. Glue coating assembly; 21. Substrate; 211. Grid lines; 212. Positioning component; 22. Glue coating sheet; 23. Limiting strip; 3. Contouring component; 31. Top plate; 32. Bottom plate; 33. End plate; 34. Side plate; G. Distance measuring element; 4. Adhesive pressing mechanism; 41. Fixed truss; 42. Mounting bracket; 43. Pressure plate; 44. Lifting module; 45. Pressure sensor; 441. First hand crank; 442. Worm gear reducer; 443. Drive shaft; 444. First lead screw; 411. Locking hole; 5. Translation mechanism; 51. Second hand crank; 52. Second lead screw; 53. Nut seat; 54. Connecting plate. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model 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 utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0027] like Figure 1 As shown, combined with Figure 2-4This utility model discloses a battery pack adhesive coating verification fixture, including a frame 1, an adhesive coating component 2, and a contouring component 3.

[0028] The frame 1 serves as the load-bearing platform for the tooling, providing stable support for the various components through a rigid structure. In some embodiments, the frame 1 can be part of a tooling trolley; for example, adding casters to the bottom of the frame 1 can form a tooling trolley for easy movement.

[0029] The adhesive application assembly 2 is used to simulate the adhesive layer area and thickness after being subjected to pressure. In this embodiment, the adhesive application assembly 2 includes a substrate 21, an adhesive sheet 22, and a limiting strip 23. The substrate 21 is horizontally fixed on the top of the frame 1, serving as the supporting foundation for the entire adhesive application assembly 2. In some embodiments, the substrate 21 is made of aluminum plate with a sandblasted and anodized surface, and is fixed to the top of the frame 1 by bolts.

[0030] The adhesive sheet 22 is used to provide an adhesive application interface. In this embodiment, the adhesive sheet 22 is detachably and horizontally disposed on the upper surface of the substrate 21. In some embodiments, four positioning members 212 can be fixedly disposed on the upper surface of the substrate 21. The positioning members 212 are L-shaped structures. The four positioning members 212 can horizontally position the square-shaped adhesive sheet 22 to prevent the adhesive sheet 22 from shifting during the adhesive application and pressing process.

[0031] The limiting strip 23 has a ring-shaped structure and is fixedly set on the top surface of the adhesive sheet. It and the adhesive sheet 22 enclose the adhesive application area. The thickness of the limiting strip 23 is greater than the thickness of the initial adhesive layer. This makes it convenient to perform adhesive application in the adhesive application area. Then, the bottom of the contouring part 3 is inserted into the inside of the limiting strip 23 to realize the pressing operation of the contouring part 3 on the adhesive layer in the adhesive application area.

[0032] In this embodiment, the contouring part 3 is square and is used to simulate the battery cell assembly formed by the arrangement of multiple individual battery cells inside the battery pack. The size and weight of the contouring part 3 are consistent with the battery cell assembly. The outer contour of the contouring part 3 is adapted to the inner contour of the limiting strip 23. Therefore, after the glue application operation is completed in the glue application area, the contouring part 3 is accurately placed inside the limiting strip 23 so that the bottom surface of the contouring part 3 presses the glue layer. The glue can spread in the glue application area after being pressed. At the same time, the limiting strip 23 serves as a boundary constraint for the glue layer to spread outward after pressing, so that the maximum glue application area after pressing does not exceed the bottom surface area of ​​the contouring part 3.

[0033] In order to achieve the adhesive pressing operation, this embodiment provides an adhesive pressing mechanism 4 on the frame 1. When the contour part 3 is placed in the adhesive application area inside the limiting strip 23, pressure can be applied to the top surface of the contour part 3 through the adhesive pressing mechanism 4.

[0034] After the adhesive bonding is completed, the adhesive bonding mechanism 4 releases pressure on the contouring part 3. To facilitate observation of the adhesive coverage area on the bottom surface of the contouring part 3, the contouring part 3 in this embodiment is made of transparent material in the vertical direction. This allows for clear observation of the adhesive spreading state after bonding through the top and bottom surfaces of the contouring part 3, and also provides a general view of the adhesive spreading area. Additionally, a distance measuring element G is provided on the side wall of the contouring part 3. This element can measure the thickness of the adhesive layer after bonding by measuring the distance between itself and the adhesive sheet 22. The distance measuring element G in this embodiment can be configured as a contact distance sensor or a non-contact distance sensor.

[0035] It is worth noting that since the weight configuration of the profile part 3 is the same as that of the battery cell assembly, when the pressure is removed, the weight of the profile part 3 is the same as that of the battery cell assembly. This can effectively simulate the area, thickness and shape of the adhesive layer after pressing under a certain pressing force, thereby effectively verifying the performance of the adhesive.

[0036] Since the profiled part 3 simulates the real battery cell assembly and the adhesive film 22 simulates the bottom plate 32 of the box, during the pressing operation, the bottom surface of the profiled part 3 directly contacts the adhesive, causing the adhesive to flow between the bottom surface of the profiled part 3 and the adhesive film 22, thereby completing the spreading of the adhesive and ensuring the uniformity of the adhesive spreading.

[0037] As one implementation method, the bottom surface of the profile 3 can be coated with a release agent. In this way, after the profile 3 completes the pressing operation, it can be smoothly separated from the adhesive layer without affecting the next use of the profile 3.

[0038] As one implementation, the coating sheet 22 has a thickness of 1mm-2mm and can be used together with the limiting strip 23 to form a disposable consumable. After the glue application and pressing verification is completed, the coating sheet 22 can be removed from the substrate 21 and a new coating sheet 22 can be replaced for the next use.

[0039] Of course, in some implementations, a release agent can be evenly applied to the surface of the adhesive area, and then glue can be applied to the surface of the adhesive area. In this way, after the pressing verification is completed, the limiting strip 23 and the adhesive layer can be directly peeled off from the adhesive sheet 22, and only one limiting strip 23 needs to be pasted on the adhesive sheet 22 for reuse.

[0040] It is worth noting that when it is necessary to observe the area of ​​the adhesive layer after pressing more clearly, you can wait for the adhesive to cure and then remove the molded part from the adhesive area (the mold release agent on the bottom of the molded part will not stick to the adhesive layer). In this way, the adhesive layer will be clearly displayed in the adhesive area, making it convenient to measure the area of ​​the adhesive layer through some measurement methods.

[0041] The battery pack adhesive coating verification fixture disclosed in this utility model directly eliminates the problem of adhesive layer morphology distortion caused by traditional film laying operations on the bottom surface of the box through the collaborative design of the adhesive coating sheet 22 and the transparent contour part 3, realizing non-destructive observation of the adhesive coating area; at the same time, by utilizing the self-weight matching characteristic of the contour part 3 to match the actual battery cell assembly, combined with the substrate 21 to simulate the box environment, it completely eliminates the dependence on actual materials and significantly shortens the verification cycle; with the precise reproduction of assembly conditions by the pressure pressing mechanism 4 and the side wall thickness monitoring capability of the contour part 3, the closed-loop verification of adhesive coating area, thickness and pressure parameters is completed in a single fixture, fundamentally solving the technical problems of cumbersome operation, accuracy distortion and long cycle in the background technology.

[0042] In order to clearly and intuitively measure the adhesive area after pressing and to calculate the adhesive area, this embodiment has uniformly distributed grid lines 211 engraved on the upper surface of the substrate 21, and the adhesive sheet 22 is made of transparent material, such as PC sheet. In this way, after the adhesive cures, the contour part 3 is removed from the adhesive area, and the corresponding position of the grid lines 211 in the adhesive area can be clearly seen through the adhesive sheet 22. This makes it easier to calculate the adhesive area after pressing more intuitively and accurately.

[0043] The contouring component 3 in this embodiment includes a top plate 31, a bottom plate 32, two end plates 33 and two side plates 34. The two end plates 33 and the two side plates 34 surround and are fixed between the top plate 31 and the bottom plate 32. The end plates 33 and the side plates 34 are made of metal, while the top plate 31 and the bottom plate 32 are made of transparent material.

[0044] With the above structural configuration, the entire contouring component 3 forms a box structure, which facilitates observation of the adhesive area through the top plate 31 and bottom plate 32. In this embodiment, the end plate 33 and side plate 34 are made of metal, serving as crucial components simulating the weight of a real battery cell. During the design of the contouring component 3, the required thickness of each component can be calculated based on the weight of the actual battery cell assembly and the selected material. This ensures that the weight and dimensions of the designed contouring component 3 match those of the actual battery cell assembly, improving the reliability of adhesive bonding verification.

[0045] It is worth noting that if the weight of the profile 3 is inconsistent with the weight of the actual battery cell assembly, after the adhesive is applied and the pressure is removed from the profile 3, the weight of the profile 3 will be lighter than that of the actual battery cell assembly, and the adhesive thickness will change. For example, the adhesive thickness will become thicker, which will affect the verification of the adhesive application performance and make it impossible to truly verify the adhesive application performance.

[0046] After the pressing operation is completed, the pressing mechanism 4 needs to be removed from the contour part 3 so that the area and thickness of the glue after pressing can be observed without external force acting on the contour part 3. For this purpose, a translation mechanism 5 is provided on the frame 1. The translation mechanism 5 is used to drive the pressing mechanism 4 to translate along the width direction of the substrate 21.

[0047] With this setup, after the glue application is completed in the glue application area and the contour part 3 is placed in the glue application area, the pressing mechanism 4 is moved to directly above the contour part 3 by the translation mechanism 5. The pressing mechanism 4 is set to apply pressure to the contour part 3 to complete the glue pressing operation. After the pressing operation is completed, the pressing mechanism 4 is moved away by the translation mechanism 5. This makes it convenient to detect the glue pressing area and thickness.

[0048] By translating the adhesive pressing mechanism 4 along the width direction of the substrate 21, the travel distance of the adhesive pressing mechanism 4 can be reduced, thereby improving the working efficiency of the tooling.

[0049] In the battery pack production process, there are many types of adhesives, and it is necessary to verify the performance of the adhesives in order to understand their applicability in actual production. Different adhesives have different pressures, pressing areas, thicknesses and uses under the same environment. In order to complete the verification operation of different adhesives on the same tooling, this embodiment also sets up the following technical solution.

[0050] In this embodiment, several adhesive application components 2 are fixedly arranged at intervals on the top of the frame 1 along the translational direction of the adhesive pressing mechanism 4. With this arrangement, by setting multiple adhesive application components 2, the same contour part 3 can be used to apply different types of adhesive to the adhesive application areas corresponding to different adhesive application components 2. The translational mechanism 5 drives the adhesive pressing mechanism 4 to move sequentially above the corresponding adhesive application components 2, thereby completing the adhesive pressing operation of different adhesives under the same pressure environment, and observing the adhesive pressing area, thickness, appearance and adhesive usage data of different adhesives.

[0051] This embodiment illustrates one structural configuration of the adhesive pressing mechanism 4. Specifically, the adhesive pressing mechanism 4 includes a fixed truss 41, a mounting frame 42, a pressure plate 43, and a lifting module 44.

[0052] The fixed truss 41 is horizontally slidably mounted on the upper part of the frame 1. The fixed truss 41 has a portal-shaped structure. The lower part of the fixed truss 41 is connected to the frame 1 via a linear slide rail. When the fixed truss 41 moves on the frame 1, it can pass over each of the adhesive application components 2 in sequence. The mounting frame 42 is located inside the fixed truss 41. The lifting module 44 is fixedly mounted on the top of the fixed truss 41 and is used to drive the mounting frame 42 to move up and down along the fixed truss 41. The pressure plate 43 is floatingly mounted on the bottom of the mounting frame 42 and is used to apply pressure to the top surface of the contour part 3. A pressure sensor 45 is provided at the bottom of the mounting frame 42.

[0053] When the translation mechanism 5 drives the entire pressing mechanism 4 to move directly above the contour part 3, the lifting module 44 drives the mounting frame 42 to move downward along the fixed truss 41. The mounting frame 42 drives the pressure plate 43 to move downward. When the pressure plate 43 contacts the contour part 3, pressure continues to be applied. At this time, the pressure sensor 45 and the pressure plate 43 come into contact. During the pressure application process, the current pressure value can be obtained through the pressure sensor 45. When the set pressure value is reached, the pressure is applied to the contour part 3.

[0054] The reason why the pressure plate 43 is floatingly set at the bottom of the mounting bracket 42 in this embodiment is to avoid rigid impact between the pressure plate 43 and the contour piece 3 when the pressure plate 43 moves downward, thereby protecting the contour piece 3.

[0055] This embodiment illustrates a structural configuration of the lifting module 44, which includes a first hand crank 441, a worm gear reducer 442, a transmission shaft 443, and a first lead screw 444. Two worm gear reducers 442 are spaced apart at the top of the fixed truss 41. One end of the first lead screw 444 is fixedly connected to the mounting bracket 42, and the other end is connected to the worm gear reducer 442. The two worm gear reducers 442 are connected by the transmission shaft 443. The first hand crank 441 is connected to one of the worm gear reducers 442.

[0056] The first hand crank 441 drives a single worm gear reducer 442, which in turn links another set of worm gear reducers 442 via the transmission shaft 443 to achieve synchronous operation at two points. The two sets of worm gear reducers 442 drive the first lead screw 444 to rotate, converting the rotational motion into precise linear lifting and lowering of the mounting bracket 42. The synchronous design of the dual worm gear reducers 442 effectively eliminates the risk of uneven load during large-span pressing, ensuring uniform force on the contoured part 3. The rigid linkage of the transmission shaft 443 ensures that the lifting strokes on both sides are completely consistent, preventing deviations in the adhesive layer thickness caused by the tilting of the pressure plate 43.

[0057] This embodiment illustrates one structural configuration of the translation mechanism 5. Specifically, the translation mechanism 5 includes a second hand crank 51, a second lead screw 52, ​​and a nut seat 53. The second lead screw 52 is horizontally rotatably mounted on the frame 1. The length direction of the second lead screw 52 is consistent with the moving direction of the pressure bonding mechanism 4. One end of the second lead screw 52 extending out of the frame 1 is fixedly connected to the second hand crank 51. The nut seat 53 is mounted on the second lead screw 52, ​​and the nut seat 53 is fixedly connected to the lower end of the fixed truss 41 through a connecting plate.

[0058] By rotating the second hand crank 51, the second lead screw 52 is driven to rotate, thereby driving the nut seat 53 to move horizontally along the second lead screw 52. The nut seat 53 drives the fixed truss 41 to move horizontally along the frame 1 through the connecting plate. By moving the fixed truss 41 on the frame 1, the entire glue pressing mechanism 4 can move linearly on the frame 1, and then switch to different glue application components 2.

[0059] As one implementation, each glue application component 2 has a mounting hole 11 on the frame 1 corresponding to its center, and a locking hole 411 that mates with the mounting hole 11 is provided on the fixed truss 41. The mounting hole 11 and the locking hole 411 are fixedly connected by a positioning pin 12.

[0060] With this configuration, when the pressing mechanism 4 moves directly above the corresponding glue application component 2, and the locking hole 411 and the mounting hole 11 are coaxial in the horizontal direction, the positioning pin 12 can be inserted into the locking hole 411 through the mounting hole 11, thereby fixing the position of the pressing mechanism 4 on the frame 1, preventing the pressing mechanism 4 from sliding horizontally during the pressing operation, and improving the stability of the pressing operation.

[0061] It is worth noting that locking holes 411 are provided on both sides of the fixed truss 41. In this way, after the positioning pin 12 is connected through the mounting hole 11 and the locking hole 411, it can withstand the vertical force of the pressing mechanism 4, and avoid the linear slide rail between the pressing mechanism 4 and the frame 1 from being deformed or worn by the force.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery pack adhesive coating verification fixture, characterized in that, include: Rack (1); The adhesive coating assembly (2) includes a substrate (21), an adhesive coating sheet (22), and a limiting strip (23). The substrate (21) is fixedly mounted on the frame (1). The adhesive coating sheet (22) is detachably and horizontally mounted on the upper surface of the substrate (21). The limiting strip (23) has a ring structure and is fixedly mounted on the top surface of the adhesive coating sheet (22), and together with the adhesive coating sheet (22) forms an adhesive coating area. The contouring part (3) is square, and its size and weight are configured to be consistent with the battery cell assembly. The outer contour of the contouring part (3) and the inner contour of the limiting strip (23) are compatible. The contouring part (3) is made of transparent material in the vertical direction. The side wall of the contouring part (3) is provided with a ranging element (G). The pressure bonding mechanism (4) is mounted on the frame (1) and is used to apply pressure to the top surface of the contour part (3).

2. The battery pack adhesive coating verification fixture as described in claim 1, characterized in that: The coated sheet (22) is made of transparent material, and the upper surface of the substrate (21) is engraved with uniformly distributed grid lines (211).

3. The battery pack adhesive coating verification fixture as described in claim 2, characterized in that: The contouring component (3) includes a top plate (31), a bottom plate (32), two end plates (33) and two side plates (34). The two end plates (33) and the two side plates (34) surround and are fixed between the top plate (31) and the bottom plate (32). The end plates (33) and the side plates (34) are made of metal, while the top plate (31) and the bottom plate (32) are made of transparent material.

4. The battery pack adhesive coating verification fixture as described in claim 1, characterized in that: It also includes a translation mechanism (5) disposed on the frame (1), the translation mechanism (5) being used to drive the adhesive pressing mechanism (4) to translate along the width direction of the substrate (21).

5. The battery pack adhesive coating verification fixture as described in claim 4, characterized in that: The top of the frame (1) is fixedly provided with several glue application components (2) at intervals along the translation direction of the glue pressing mechanism (4).

6. The battery pack adhesive coating verification fixture as described in claim 4, characterized in that: The pressing mechanism (4) includes a fixed truss (41), a mounting frame (42), a pressure plate (43), and a lifting module (44). The fixed truss (41) is horizontally slidably disposed on the upper part of the frame (1). The mounting frame (42) is disposed inside the fixed truss (41). The lifting module (44) is fixedly disposed on the top of the fixed truss (41) and is used to drive the mounting frame (42) to move up and down along the fixed truss (41). The pressure plate (43) is floatingly disposed at the bottom of the mounting frame (42) and is used to apply pressure to the top surface of the contour part (3). A pressure sensor (45) is disposed at the bottom of the mounting frame (42).

7. The battery pack adhesive coating verification fixture as described in claim 6, characterized in that: The lifting module (44) includes a first hand crank (441), a worm gear reducer (442), a transmission shaft (443), and a first lead screw (444). Two worm gear reducers (442) are spaced apart on the top of the fixed truss (41). One end of the first lead screw (444) is fixedly connected to the mounting frame (42), and the other end is connected to the worm gear reducer (442). The two worm gear reducers (442) are connected by transmission shaft (443). The first hand crank (441) is connected to one of the worm gear reducers (442).

8. The battery pack adhesive coating verification fixture as described in claim 6, characterized in that: The translation mechanism (5) includes a second hand crank (51), a second lead screw (52) and a nut seat (53). The second lead screw (52) is horizontally rotatably mounted on the frame (1). The length direction of the second lead screw (52) is consistent with the moving direction of the adhesive pressing mechanism (4). One end of the second lead screw (52) extending out of the frame (1) is fixedly connected to the second hand crank (51). The nut seat (53) is mounted on the second lead screw (52) and is fixedly connected to the lower end of the fixed truss (41) through a connecting plate.

9. The battery pack coating verification fixture as described in claim 8, characterized in that: Each of the glue-applying components (2) has a mounting hole (11) on the frame (1) corresponding to its center. The fixed truss (41) has a locking hole (411) that matches the mounting hole (11). The mounting hole (11) and the locking hole (411) are fixedly connected by a positioning pin (12).

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