Gluing test tool and gluing equipment

Abstract

The utility model discloses a gluing test tool and gluing equipment, relates to the related technical field of gluing test tools, and is used for solving the problem that the trial-manufacture verification period cannot be met due to the fact that poor sealing of sealant is found in the real vehicle trial-manufacture stage. The gluing test tool provided by the utility model has a first direction, the gluing test tool comprises a base, and the base is provided with a test surface perpendicular to the first direction; the test plate is detachably connected to the test surface, a first lap joint step is formed between the test plate and the test surface, and the first lap joint step is used for simulating a first lap joint seam of two sheet metal parts in a vehicle body and is configured to be used for coating a sealant. The sheet metal part gluing test tool is used for simulating the gluing state of the sheet metal part in the vehicle body data development stage, discovering problems in advance and optimizing the problems.

Description

Technical Field

[0001] The present application relates to the technical field related to glue coating test tooling, and in particular to a glue coating test tooling and glue coating equipment. Background Art

[0002] During vehicle manufacturing, after two or three layers of sheet metal are welded together, the overlapping welds are sealed with sealant. If sealant failure is discovered during the trial production phase, and on-site adjustments to process parameters and materials fail to resolve the issue, the vehicle body structure must be redesigned, requiring modifications to molds and fixtures related to the structure. This can be costly and time-consuming, potentially preventing the trial production verification period from being met.

[0003] Therefore, there is an urgent need to provide a gluing test tooling and gluing equipment, which can simulate the gluing state of sheet metal parts through the gluing test tooling, so as to discover problems in advance and optimize them before the actual vehicle trial production stage. Utility Model Content

[0004] This application provides a glue coating test fixture and glue coating equipment that can solve the problem of poor sealing of sealant discovered during the actual vehicle trial production stage. If the poor sealing problem cannot be solved through on-site improvements in process parameters, materials, etc., it is necessary to make design changes to the vehicle body structure, which will involve changes to molds and fixtures related to the vehicle body structure. This requires high costs and a long modification cycle, which in turn leads to the problem of not being able to meet the trial production verification cycle.

[0005] To achieve the above-mentioned purpose, on the one hand, the present application provides a gluing test tool for performing a gluing test, wherein the gluing test tool has a first direction and comprises:

[0006] a base having a test surface perpendicular to the first direction;

[0007] The test plate is detachably connected to the test surface and forms a first overlapping step with the test surface. The first overlapping step is used to simulate a first overlapping seam between two sheet metal parts in a vehicle body and is configured to be used for applying sealant.

[0008] In some embodiments of the present application, the glue coating test tool has a second direction intersecting with the first direction, the test plates include a plurality, and the plurality of test plates are arranged at intervals along the second direction, and two adjacent test plates have a first spacing L1 in the second direction, and the first spacing L1 is greater than or equal to 5 cm.

[0009] In some embodiments of the present application, the glue coating test fixture has a second direction intersecting with the first direction, the test plate includes a plurality, at least two of the test plates are stacked along the first direction, and a second overlapping step is formed between two side walls of two adjacent test plates located on the same side in the second direction. The second overlapping step is used to simulate a second overlapping seam between two sheet metal parts in a car body and is configured for applying sealant.

[0010] In some embodiments of the present application, among the at least two test plates arranged in a stacked manner, the size of the test plate closer to the test surface in the second direction is larger than the size of the test plate farther from the test surface in the second direction, and a second distance L2 is present between two side walls of two adjacent test plates located on the same side in the second direction, and the second distance L2 is greater than or equal to 3 mm.

[0011] In some embodiments of the present application, the glue coating test tool has a first direction, a second direction and a third direction that intersect each other, the test plate has an observation surface facing away from the test surface, and the observation surface is provided with a plurality of scale lines on at least one side of the third direction, and the plurality of scale lines are arranged at intervals along the second direction.

[0012] In some embodiments of the present application, the glue coating test fixture has a second direction intersecting with the first direction, and the glue coating test fixture also includes an adjustment connection structure, which connects the base and the test plate and is capable of adjusting the relative positions of the base and the test plate in the second direction.

[0013] In some embodiments of the present application, the adjustment connection structure includes a fastener, a connecting hole and a waist-shaped hole. The connecting hole is provided on the base and passes through the base along the first direction. The waist-shaped hole is provided on the test plate and extends along the second direction. The fastener is passed through the connecting hole and the waist-shaped hole to fix the test plate to the base. The waist-shaped hole is configured to adjust the relative position of the test plate and the base in the second direction.

[0014] In some embodiments of the present application, the waist-shaped hole includes two arc segments arranged opposite to each other in the second direction, and a straight line segment connecting the two arc segments, and the length L3 of the straight line segment in the second direction is not less than 10 mm.

[0015] In some embodiments of the present application, the base has a placement surface arranged opposite to the test surface in the first direction, and the glue coating test tool also includes a placement platform, which is provided with an avoidance hole, and the part of the fastener extending out of the placement surface extends into the avoidance hole.

[0016] In some embodiments of the present application, the glue coating test tool also includes a placement platform, the base has a placement surface arranged opposite to the test surface in the first direction, and a positioning structure is provided between the placement surface and the placement platform, and the positioning structure can limit the relative movement of the base and the placement platform in a plane perpendicular to the first direction.

[0017] In some embodiments of the present application, a thickness D of the test plate in the first direction is less than or equal to 2.5 mm and greater than or equal to 0.65 mm.

[0018] On the other hand, the present application also provides a glue coating device, comprising:

[0019] Gluing device;

[0020] And, in the glue coating test tool as described in any of the above technical solutions, the glue coating device is used to apply sealant at the first overlapping step of the glue coating test tool.

[0021] The above technical solution of this application has at least the following beneficial effects:

[0022] This application uses the first overlapping step to simulate the first overlapping seam of two sheet metal parts in the car body. Thus, in the stage of car body data development, the sheet metal parts on the car body digital model can be subjected to physical verification of gluing through the gluing test fixture. During the physical verification process, the first overlapping step is glued, and the wet film of the sealant and the dry film state after baking are observed. If the sealant has problems such as collapse and cracking, it is necessary to scrape the sealant and adjust the process parameters of the gluing device (such as pressure, flow, etc.), and test again until it is observed that the sealant can completely cover the first overlapping step without quality problems. Thus, in the stage of car body data development, the gluing state of the sheet metal parts can be simulated through the gluing test fixture, and problems can be found in advance and optimized. Thus, in the stage of actual vehicle trial production, the gluing device can use the adjusted process parameters to gluing the first overlapping seam of the two sheet metal parts in the car body, so as to avoid the discovery of poor gluing in the stage of actual vehicle trial production, which leads to the need to change the design of the car body structure, thereby affecting the delivery deadline of the product and failing to meet the trial production verification cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1This is a three-dimensional diagram of the gluing test tooling in the embodiment of the present application;

[0025] Figure 2 This is a structural diagram of an arrangement of test plates in a glue coating test tooling in an embodiment of the present application;

[0026] Figure 3 This is a structural diagram of another arrangement of the test plates in the glue coating test tooling in the embodiment of the present application;

[0027] Figure 4 This is a structural diagram of another arrangement of the test plates in the glue coating test tooling in the embodiment of the present application;

[0028] Figure 5 1 is a top view of a test plate in a glue coating test fixture in an embodiment of the present application;

[0029] Figure 6 1 is a top view of the base in the gluing test tooling in the embodiment of the present application;

[0030] Figure 7 This is a three-dimensional diagram of the glue coating test tooling including the placement platform in the embodiment of the present application.

[0031] The main reference numerals in the drawings of this application specification are described as follows:

[0032] 1-base; 11-test surface; 12-placement surface;

[0033] 2-test plate; 21-first overlapping step; 22-second overlapping step; 23-observation surface; 231-scale line;

[0034] 3- Sealant;

[0035] 4-adjustable connection structure; 41-fastener; 42-connection hole; 43-waist-shaped hole;

[0036] 5-Placement platform; 51-Avoidance hole;

[0037] Z-first direction; X-second direction; Y-third direction. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0039] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0040] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0042] The present application provides a gluing test fixture and a gluing device, both of which are described in detail below. It should be noted that the order of description of the following embodiments does not limit the preferred order of the embodiments of the present application. In addition, in the following embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in one embodiment, please refer to the relevant description of other embodiments.

[0043] After a car body is welded together from two or three layers of sheet metal, the overlapped welds need to be sealed with glue. Due to the varying thickness of the sheet metal, sealant can cause some welds to collapse, develop holes, or crack. This can lead to a poor seal, leaks, NVH issues, and substandard performance.

[0044] Therefore, the PVC coating process is an indispensable process for today's automobiles. Its main functions are sealing, reinforcement, corrosion protection, NVH, noise, rain and water exposure, and aesthetics. With the increasing demand for new energy vehicles, fierce industry competition, and the gradual shortening of manufacturing cycles by automobile companies, we need to carry out process optimization work during the body design stage to meet the trial production and verification cycle.

[0045] In order to quickly identify and optimize post-manufacturing risks in advance, the present application provides a gluing test tool, namely a gluing device.

[0046] Reference Figure 1 and Figure 2 The glue coating test fixture provided in this application has a first direction Z, a second direction X, and a third direction Y that intersect each other. The glue coating test fixture includes a base 1 and a test plate 2. The base 1 has a test surface 11 perpendicular to the first direction Z. The test plate 2 is detachably connected to the test surface 11 and forms a first overlapping step 21 between the test surface 11 and the test surface 11.

[0047] The first overlapping step 21 is used to simulate the first overlapping seam between two sheet metal parts in the vehicle body, and is also configured to be used for applying sealant 3. The sealant 3 can be peeled off from the first overlapping step 21 after the coating test is completed.

[0048] In this technical solution, the first overlapping step 21 is used to simulate the first overlapping seam of two sheet metal parts in the car body. Therefore, during the car body data development stage, the sheet metal parts on the car body digital model can be physically verified by the glue coating test fixture. During the physical verification process, the first overlapping step 21 is glued, and the wet film state of the sealant 3 and the dry film state after baking are observed. If the sealant 3 has problems such as collapse or cracking, it is necessary to scrape the sealant 3 and adjust the process parameters of the glue coating device (such as pressure, flow, etc.), and conduct the test again until it is observed that the sealant 3 can completely cover the first overlapping step 21 without quality problems. Therefore, during the car body data development stage, the glue coating test fixture can be used to simulate the glue coating state of the sheet metal parts, and problems can be discovered and optimized in advance. Therefore, during the actual vehicle trial production stage, the gluing device can use the adjusted process parameters to apply glue to the first lap joints of the two sheet metal parts in the car body, so as to avoid poor gluing during the actual vehicle trial production stage, which would require design changes to the car body structure, thereby affecting the product delivery deadline and failing to meet the trial production verification cycle.

[0049] Furthermore, this setup prevents issues during the trial production phase, such as welds with excessively large holes due to thick material, requiring manual application of glue after application to ensure a complete seal. Operators would then need to wipe and adjust any unsatisfactory PVC coating with a rag, making it impossible to measure the sealant quality and ensuring operational consistency, which in turn impacts the quality of the final vehicle.

[0050] like Figure 2As shown, the test panels 2 include a plurality of test panels 2, and the plurality of test panels 2 are arranged at intervals along the second direction X. Adjacent test panels 2 have a first spacing L1 in the second direction X, and the first spacing L1 is greater than or equal to 5 cm. Thus, by limiting the minimum value of the first spacing L1 of the two adjacent test panels 2 in the second direction X to 5 cm, the mutual interference between the two adjacent test panels 2 can be reduced. Specifically, when performing the glue coating test, it is possible to prevent the bonding area between the two sealant 3 structures at the two side walls of the two adjacent test panels 2 facing each other in the second direction X and the test surface 11 from being too small. That is, the bonding area between the two sealant 3 structures at the two side walls of the two adjacent test panels 2 facing each other in the second direction X and the test surface 11 is ensured to be appropriate, thereby ensuring the accuracy and reliability of the glue coating test results. In addition, the sealant 3 is prevented from overflowing from the first spacing between the adjacent test panels 2 during the glue coating process, so as to avoid excessive or uneven glue coating, reduce interference between the test panels 2, and ensure the accuracy of the test results.

[0051] It will be understood that the two opposing side walls of each test panel 2 in the second direction X form a first overlapping step 21 with the test surface 11 of the base 1. The two opposing side walls of each test panel 2 in the third direction Y do not need to undergo the glue coating test. Furthermore, the side walls of each test panel 2 in the second direction X are larger than the side walls of the test panel 2 in the third direction Y. In other words, the test panel 2 is rectangular, with its long side extending along the third direction Y.

[0052] like Figure 3 As shown, the test plate 2 includes a plurality of test plates 2, at least two of which are stacked along the first direction Z. A second overlapping step 22 is formed between the two side walls of the two adjacent test plates 2 located on the same side in the second direction X. The extension direction of the second overlapping step 22 is parallel to the extension direction of the first overlapping step 21, and both are parallel to the third direction Y. The second overlapping step 22 is used to simulate the second overlapping seam of two sheet metal parts in the car body, and is configured to be used for applying sealant 3. The sealant 3 can be peeled off from the second overlapping step 22. With such an arrangement, the gluing effect of the two overlapping steps (the first overlapping step 21 and the second overlapping step 22) formed by at least three layers of panels (the base 1 and the at least two test plates 2 stacked along the first direction Z) can be verified simultaneously, which is conducive to improving the test effect.

[0053] Among them, the first lap seam and the second lap seam of the two sheet metal parts in the car body can be the same lap seam or different lap seams, and this application does not make any specific limitation on this.

[0054] Based on the above embodiment, to ensure the accuracy of the glue coating test, of the at least two test panels 2 stacked together, the test panel 2 closer to the test surface 11 has a larger dimension in the second direction X than the test panel 2 farther from the test surface 11. A second spacing L2 is provided between the sidewalls of two adjacent test panels 2 located on the same side in the second direction X. The second spacing L2 is greater than or equal to 3 mm. When the second spacing L2 is greater than or equal to 3 mm, a larger contact area and better glue coating are provided for the at least two test panels 2 stacked together, helping to ensure uniform and accurate glue coating, reduce glue coating errors, and improve the accuracy of test results.

[0055] like Figure 4 As shown, in some embodiments, the test panels 2 can also be arranged in the following manner. For example, a plurality of test panels 2 are provided on the test surface 11 of the base 1. At least two of the plurality of test panels 2 are arranged at intervals along the second direction X, and at least two of the test panels 2 are arranged in a stacked manner along the first direction Z. Specifically, when at least two of the plurality of test panels 2 are arranged at intervals along the second direction X, two adjacent test panels 2 have a first spacing L1 in the second direction X, and the first spacing L1 is greater than or equal to 5 cm. When at least two test panels 2 are stacked in the first direction Z, a second overlapping step 22 is formed between two side walls of the two stacked test panels 2 located on the same side in the second direction X. The extension direction of the second overlapping step 22 is parallel to the extension direction of the first overlapping step 21, and both are parallel to the third direction Y.

[0056] It is understood that when the sealant 3 covers the first overlapping step 21, a portion of the sealant 3 will cover the test surface 11 of the base 1, a portion will cover the observation surface 23 of the test plate 2 facing away from the test surface 11, and a portion will cover the sidewall of the test plate 2 parallel to the first direction Z. Similarly, the covering structure of the sealant 3 on the second overlapping step 22 is the same as the covering structure of the sealant 3 on the first overlapping step 21.

[0057] Please refer to Figure 1 and Figure 5 The test plate 2 has an observation surface 23 facing away from the test surface 11. A plurality of scale lines 231 are provided on at least one side of the observation surface 23 in the third direction Y. The scale lines 231 are arranged at intervals along the second direction X. Thus, the scale lines 231 facilitate observation of the width of the sealant 3 covering the observation surface 23. The width of the sealant 3 in the second direction X is the width of the sealant 3.

[0058] In addition, for the embodiments that include both "at least two test plates 2 are stacked along the first direction Z" and "the test plate 2 has an observation surface 23 facing away from the test surface 11, and the observation surface 23 is provided with a plurality of scale lines 231 on at least one side in the third direction Y, and the plurality of scale lines 231 are arranged at intervals along the second direction X", the above-mentioned scale lines 231 facilitate observation of the offset distance of the two stacked test plates 2 in the second direction X, and the offset distance is used to form the second spacing L2.

[0059] In some embodiments of the present application, the glue coating test tooling also includes an adjustable connecting structure 4, which connects the base 1 and the test plate 2 and can adjust the relative position of the base 1 and the test plate 2 in the second direction X, thereby ensuring the coverage of the sealant 3 and ensuring the accuracy of the glue coating test.

[0060] Based on the above embodiment, refer to Figure 1 、 Figure 5 and Figure 6 The adjustable connection structure 4 includes a fastener 41, a connection hole 42, and a waist-shaped hole 43. The connection hole 42 is provided on the base 1 and extends through the base 1 along the first direction Z. The waist-shaped hole 43 is provided on the test board 2 and extends along the second direction X. The fastener 41 is inserted through the connection hole 42 and the waist-shaped hole 43 to secure the test board 2 to the base 1. The waist-shaped hole 43 is configured to adjust the relative position of the test board 2 and the base 1 in the second direction X.

[0061] Thus, the design of fasteners 41 facilitates the installation and removal of test board 2. Specifically, by loosening fasteners 41, the position of test board 2 can be adjusted or removed from base 1, simplifying the replacement or maintenance process of test board 2 and thus saving testing time. Furthermore, the presence of waist-shaped holes 43 allows the position of test board 2 in the second direction X relative to base 1 to be adjusted, and this adjustment method is relatively simple and easy to implement.

[0062] The waist-shaped hole 43 comprises two arc segments arranged opposite each other in the second direction X, and a straight segment connecting the two arc segments. The length L3 of the straight segment in the second direction X is no less than 10 mm. This allows for a wider range of adjustment between the relative position of the test plate 2 and the base 1, providing the test plate 2 with greater flexibility to accommodate diverse testing needs and requirements. To adjust the position of the test plate 2, only the fastener 41 needs to be loosened, rather than removed. This allows the fastener 41 to serve as a guide during adjustment. After confirming the connection position of the test plate 2, the fastener 41 can be tightened again.

[0063] In other embodiments, the adjustable connection structure 4 includes a fastener 41, a connection hole 42, and a plurality of adapting holes. The connection hole 42 is provided on the base 1 and extends through the base 1 along the first direction Z. The plurality of adapting holes are provided on the test board 2 and are spaced apart along the second direction X. The fastener 41 is inserted through the connection hole 42 and any one of the adapting holes to secure the test board 2 to the base 1.

[0064] Each test board 2 is connected to the base via at least two adjustment connection structures 4 arranged at intervals along the third direction Y.

[0065] In some embodiments of the present application, reference is made to Figure 1 and Figure 7 The base 1 has a placement surface 12 arranged opposite to the test surface 11 in the first direction Z. The glue coating test tooling also includes a placement platform 5. The placement platform 5 is provided with an avoidance hole 51. The part of the fastener 41 extending out of the placement surface 12 extends into the avoidance hole 51 to ensure that the test surface 11 is always perpendicular to the first direction Z, thereby ensuring that the distance between the test surface 11 and the glue coating equipment is equal everywhere, thereby ensuring the glue coating effect and test reliability.

[0066] For example, the placement platform 5 is a grid plate, which includes a rod-like structure arranged in a horizontal and vertical staggered manner, and a plurality of hole-like structures defined by the rod-like structures arranged in a horizontal and vertical staggered manner. The hole-like structure can be used to form the above-mentioned avoidance hole 51 for the part of the fastener 41 extending out of the placement surface 12 to extend into.

[0067] In some embodiments of the present application, a placement platform 5 is further included, and the base 1 has a placement surface 12 arranged opposite to the test surface 11 in the first direction Z. A positioning structure is provided between the placement surface 12 and the placement platform 5. The positioning structure can limit the relative movement of the base 1 and the placement platform 5 in a plane perpendicular to the first direction Z, which can improve the structural stability of the glue coating test tooling, help prevent the base 1 from accidentally moving or shaking during the test, and ensure the accuracy and reliability of the test.

[0068] In which, the positioning structure includes a positioning protrusion and a positioning groove, the positioning protrusion is arranged on one of the placement surface 12 of the base 1 and the upper surface of the placement platform 5, and extends along the first direction Z toward the other of the base 1 and the placement platform 5, and the positioning groove is arranged on the other of the placement surface 12 of the base 1 and the upper surface of the placement platform 5.

[0069] It should be noted that, in some embodiments, the portion of the fastener 41 extending from the placement surface 12 may constitute the aforementioned positioning protrusion. Accordingly, it is only necessary to provide a corresponding avoidance hole 51 on the placement platform 5.

[0070] Please continue to refer to Figure 2The thickness D of each test plate 2 in the first direction Z is less than or equal to 2.5 mm and greater than or equal to 0.65 mm. The thickness of the test plate 2 and the thickness of the sheet metal can be set to the same. The glue coating test fixture is used to conduct physical verification of the glue coating. The process parameters and process methods of the glue coating are optimized in advance in the data stage, the thickness and length of the sealant 3 are adjusted, and it is determined whether the process operation is brushing glue, scraping glue, or not brushing glue after glue coating, so as to match sheet metal parts of different thicknesses and ensure the accuracy of the glue coating test.

[0071] The thickness of the test plate 2 and the sheet metal component can be set to be the same in two ways. First, the thickness of a single test plate 2 is equal to the thickness of the sheet metal component. Second, when multiple test plates 2 are of the same size and are stacked and connected to the base 1, the sum of their thicknesses is equal to the thickness of the sheet metal component. This application does not impose any specific restrictions on this.

[0072] In some embodiments of the present application, a gluing device is further provided, comprising a gluing apparatus and the gluing test fixture described in any of the above technical solutions, wherein the gluing apparatus is configured to apply sealant 3 to the first overlapping step 21 of the gluing test fixture. Since the gluing test fixture in the gluing device provided in the present application and the above-described gluing test fixture have the same structure, both can solve the same technical problems and achieve the same technical effects.

[0073] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0074] The above is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims. In addition, the specification uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. The content of this specification should not be understood as limiting the present application.

Claims

1. A glue coating test tool, characterized in that: The gluing test tool has a first direction, and the gluing test tool includes: a base having a test surface perpendicular to the first direction; The test plate is detachably connected to the test surface and forms a first overlapping step with the test surface. The first overlapping step is used to simulate a first overlapping seam between two sheet metal parts in a vehicle body and is configured to be used for applying sealant.

2. The glue coating test tool according to claim 1, characterized in that: The glue coating test tool has a second direction intersecting with the first direction. The test plates include multiple test plates, and the multiple test plates are arranged at intervals along the second direction. Two adjacent test plates have a first spacing L1 in the second direction, and the first spacing L1 is greater than or equal to 5 cm.

3. The glue coating test tool according to claim 1, characterized in that: The glue coating test fixture has a second direction intersecting with the first direction. The test panels include multiple panels, at least two of which are stacked along the first direction. A second overlapping step is formed between two side walls of two adjacent test panels located on the same side in the second direction. The extension direction of the second overlapping step is parallel to the extension direction of the first overlapping step. The second overlapping step is used to simulate a second overlapping seam between two sheet metal parts in a car body and is configured for applying sealant.

4. The glue coating test tool according to claim 3, characterized in that: Of the at least two test plates stacked together, a dimension of the test plate closer to the test surface in the second direction is larger than a dimension of the test plate farther from the test surface in the second direction, and a second distance L2 is present between two side walls of two adjacent test plates located on the same side in the second direction, and the second distance L2 is greater than or equal to 3 mm.

5. The glue coating test tool according to claim 1, 3 or 4, characterized in that: The glue coating test tool has a first direction, a second direction and a third direction that intersect in pairs. The test plate has an observation surface facing away from the test surface. The observation surface is provided with multiple scale lines on at least one side of the third direction, and the multiple scale lines are arranged at intervals along the second direction.

6. The glue coating test tool according to claim 1, characterized in that: The glue coating test fixture has a second direction intersecting with the first direction, and further comprises an adjustment connection structure, which connects the base and the test plate and can adjust the relative positions of the base and the test plate in the second direction.

7. The glue coating test tool according to claim 6, characterized in that: The adjustment connection structure includes a fastener, a connecting hole and a waist-shaped hole. The connecting hole is provided on the base and passes through the base along the first direction. The waist-shaped hole is provided on the test plate and extends along the second direction. The fastener is passed through the connecting hole and the waist-shaped hole to fix the test plate to the base. The waist-shaped hole is configured to adjust the relative position of the test plate and the base in the second direction.

8. The gluing test tool according to claim 7, characterized in that: The waist-shaped hole includes two arc segments arranged opposite to each other in the second direction, and a straight line segment connecting the two arc segments. The length L3 of the straight line segment in the second direction is not less than 10 mm.

9. The gluing test tool according to claim 7, characterized in that: The base has a placement surface arranged opposite to the test surface in the first direction. The glue coating test fixture also includes a placement platform. The placement platform is provided with an avoidance hole, and the portion of the fastener extending from the placement surface extends into the avoidance hole.

10. The glue coating test tool according to claim 1, characterized in that: It also includes a placement platform, the base has a placement surface arranged opposite to the test surface in the first direction, a positioning structure is provided between the placement surface and the placement platform, and the positioning structure can limit the relative movement of the base and the placement platform in a plane perpendicular to the first direction.

11. The gluing test tool according to claim 1, characterized in that: The thickness D of the test plate in the first direction is less than or equal to 2.5 mm and greater than or equal to 0.65 mm.

12. A glue coating device, characterized in that: include: Gluing device; And, according to the glue coating test tool as described in any one of claims 1 to 11, the glue coating device is used to apply sealant at the first overlapping step of the glue coating test tool.

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