Fatigue resistance test device for automobile sealing strip

Abstract

The utility model relates to an automobile sealing strip fatigue resistance test device, the test device is used for carrying out fatigue resistance test on a sealing strip on an automobile window assembly, and the automobile sealing strip fatigue resistance test device comprises a test bench; the fixing mechanism is arranged on the test board and is used for fixing the vehicle window assembly; the pressing and releasing mechanism comprises a driving assembly and a profiling part connected with the driving assembly, the driving assembly can drive the profiling part to repeatedly press the sealing strip, and the profiling part is provided with a profiling face matched with the surface of the sealing strip. According to the fatigue resistance test device for the automobile sealing strip, through cooperative arrangement of the test bench, the fixing mechanism and the pressing and releasing mechanism, the fatigue resistance test can be performed on the sealing strip on the automobile window assembly in a low-cost and high-efficiency manner, and the fatigue resistance test device has relatively good universality and compatibility.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment, and in particular to a fatigue resistance testing device for automobile sealing strips. Background Art

[0002] At present, more and more car rear side windows and the overlap between the rear triangular windows and rear doors are designed with sealing strips with tongue structures to improve the noise reduction and sound insulation performance of the car.

[0003] Due to the shape structure, material properties and assembly error of the sealing strip, the car door will squeeze the sealing strip at the corresponding position during long-term opening and closing, which may cause cracking and severe wear of the sealing strip at the corresponding position, affecting the functional stability of the sealing strip. Therefore, it is necessary to conduct fatigue resistance tests (door opening and closing tests) on car doors with sealing strips before mass production to test the functional stability of the sealing strips in advance.

[0004] In the related technology, the OEM usually directly conducts the opening and closing test on the vehicle door. Before the OEM conducts the fatigue test (door opening and closing test) on the corresponding vehicle door, it is necessary to customize the body sheet metal, door, etc. according to the body size of each vehicle model to assemble them into test tooling. After the fatigue test (door opening and closing test) is completed, the corresponding tooling is immediately scrapped, resulting in a large test cost and material waste, high test cost, long test cycle, and poor compatibility and universality. Utility Model Content

[0005] The embodiment of the present application aims to solve at least one of the technical problems existing in the prior art. To this end, the embodiment of the present application provides a fatigue test device for automobile sealing strips, which can perform fatigue test on sealing strips on automobile window assemblies in a low-cost and high-efficiency manner, and has good universality and compatibility.

[0006] The embodiment of the present application provides a vehicle sealing strip fatigue test device, which is used to perform fatigue test on the sealing strip on the vehicle window assembly. The vehicle sealing strip fatigue test device includes:

[0007] Test bench;

[0008] A fixing mechanism, provided on the test bench, for fixing the vehicle window assembly;

[0009] The pressing and releasing mechanism comprises a driving assembly and a profiling member connected to the driving assembly, wherein the driving assembly can drive the profiling member to repeatedly press the sealing strip, and the profiling member has a profiling surface matched with the surface of the sealing strip.

[0010] The automotive sealing strip fatigue resistance test device according to the embodiment of the present application has at least the following beneficial effects:

[0011] The automobile sealing strip fatigue test device of the embodiment of the present application, through the coordinated arrangement of the test bench, the fixing mechanism and the pressing and releasing mechanism, does not need to customize corresponding test tooling for window assemblies of different specifications, and can implement fatigue tests on the sealing strips of window assemblies of different specifications, thereby reducing the test cost and test cycle of fatigue tests on the sealing strips of window assemblies, and can perform fatigue tests on the sealing strips on automobile window assemblies in a low-cost and high-efficiency manner, and has good universality and compatibility.

[0012] In some embodiments, the driving assembly is configured to drive the contoured member to swing relative to the vehicle window assembly so that the contoured surface presses against or disengages from the surface of the sealing strip.

[0013] In some embodiments, the driving assembly includes a rotary driving member and a rotating shaft, the output end of the rotary driving member is connected to the rotating shaft, the contour member is detachably connected to the rotating shaft, and the connection position of the contour member and the rotating shaft is adjustable.

[0014] In some embodiments, the driving assembly also includes a connecting member arranged on the rotating shaft and a first fastener arranged on the connecting member, the connecting member has a plurality of first strip holes spaced apart along its length direction, the contoured member has a plurality of first connecting holes along its length direction, the first fastener passes through the first strip hole and is detachably connected to the first connecting hole.

[0015] In some embodiments, the automobile sealing strip fatigue resistance testing device further includes a pressure sensor, and the pressure sensor is configured to detect the pressure value applied to the sealing strip when the contoured member presses the sealing strip.

[0016] In some embodiments, the automobile sealing strip fatigue resistance testing device further includes a distance sensor, and the distance sensor is configured to detect the deformation amount of the sealing strip when the contoured member presses the sealing strip.

[0017] In some embodiments, the fixing mechanism includes a support column and a clamping head, the support column is used to support the vehicle window assembly, and the clamping head can be aligned with the support column up and down to clamp the vehicle window assembly between the support column and the clamping head.

[0018] In some embodiments, the fixing mechanism further includes a mounting seat and a first rotating rod hinged to the mounting seat, and the clamping head is disposed on the first rotating rod.

[0019] In some embodiments, the fixing mechanism also includes a second rotating rod and a limit block, the second rotating rod is hinged to the mounting seat, the two ends of the limit block are respectively rotatably connected to the second rotating rod and the first rotating rod, and the limit block has a stop portion that abuts against the first rotating rod.

[0020] In some embodiments, the top end of the support column has a support arc surface, and the support arc surface is used to contact and cooperate with the vehicle window assembly.

[0021] In some embodiments, there are at least three fixing mechanisms, all of which are spaced apart along the circumferential direction, and the distance between two adjacent fixing mechanisms can be adjusted.

[0022] In some embodiments, the fixing mechanism is provided with a second fastener and a second strip hole, a plurality of second connecting holes are spaced apart on the test bench, and the second fastener passes through the second strip hole and is detachably connected to the second connecting hole.

[0023] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0025] Figure 1 This is a schematic structural diagram of a vehicle sealing strip fatigue resistance testing device according to an embodiment of the present application.

[0026] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0027] Figure 3 Another structural schematic diagram of the automobile sealing strip fatigue resistance testing device according to an embodiment of the present application.

[0028] Figure 4 This is a schematic diagram of the matching structure of the automobile sealing strip fatigue resistance testing device and the vehicle window assembly according to an embodiment of the present application.

[0029] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0030] Figure 6Schematic diagram of the structure of the fixing mechanism of the embodiment of the present application.

[0031] Figure 7 Another structural schematic diagram of the fixing mechanism of an embodiment of the present application.

[0032] Explanation of the reference numerals: test bench 100; second connecting hole 110; mounting block 120; fixing mechanism 200; supporting column 210; supporting arc surface 211; clamping head 220; mounting seat 230; second strip hole 231; first rotating rod 240; first hollow avoidance cavity 241; second rotating rod 250; second hollow avoidance cavity 251; limiting block 260; stopper 261; pressing and releasing mechanism 300; driving assembly 310; rotating driving member 311; rotating shaft 312; connecting member 313; first strip hole 3131; profiling member 320; profiling surface 321; sealing strip 400; vehicle window assembly 500; pressure sensor 600; distance sensor 700. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 the present application.

[0035] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0039] At present, more and more car rear side windows and the overlap between the rear triangular windows and rear doors are designed with sealing strips with tongue structures to improve the noise reduction and sound insulation performance of the car.

[0040] Due to the shape structure, material properties and assembly error of the sealing strip, the car door will squeeze the sealing strip at the corresponding position during long-term opening and closing, which may cause cracking and severe wear of the sealing strip at the corresponding position, affecting the functional stability of the sealing strip. Therefore, it is necessary to conduct fatigue resistance tests (door opening and closing tests) on car doors with sealing strips before mass production to test the functional stability of the sealing strips in advance.

[0041] In the related technology, the OEM usually directly conducts the opening and closing test on the vehicle door. Before the OEM conducts the fatigue test (door opening and closing test) on the corresponding vehicle door, it is necessary to customize the body sheet metal, door, etc. according to the body size of each vehicle model to assemble them into test tooling. After the fatigue test (door opening and closing test) is completed, the corresponding tooling is immediately scrapped, resulting in a large test cost and material waste, high test cost, long test cycle, and poor compatibility and universality.

[0042] Based on this, see Figure 1 , Figure 2 and Figure 3 The embodiment of the present application provides a vehicle sealing strip fatigue resistance test device, which is used to perform fatigue resistance test on the sealing strip 400 on the vehicle window assembly 500. The vehicle sealing strip fatigue resistance test device includes a test bench 100, a fixing mechanism 200 and a pressing mechanism 300.

[0043] The fixing mechanism 200 is disposed on the test bench 100, and is used to fix the vehicle window assembly 500. The pressing mechanism 300 includes a driving assembly 310 and a contoured member 320 connected to the driving assembly 310, and the driving assembly 310 can drive the contoured member 320 to repeatedly press the sealing strip 400, and the contoured member 320 has a contoured surface 321 adapted to the surface of the sealing strip 400.

[0044] It should be noted that in the embodiments of the present application, the vehicle window assembly 500 can also be understood as a vehicle window glass assembly of a vehicle. For example, in one embodiment, the vehicle window assembly 500 is a rear side window of a vehicle (including a sealing strip). For another example, in another embodiment, the vehicle window assembly 500 is a rear triangular window of a vehicle and a lap joint structure with a rear door. The vehicle window assembly 500 includes a vehicle window glass and a sealing strip 400 connected to the side edge of the vehicle window glass. The sealing strip 400 is constructed as a tongue structure, that is, the surface of the sealing strip 400 has a certain curvature.

[0045] Correspondingly, the shape of the profiling surface 321 of the profiling member 320 is consistent with the surface of the sealing strip 400, so that the profiling surface 321 of the profiling member 320 can match and fit on the surface of the sealing strip 400. The profiling member 320 can be manufactured by 3D printing technology according to the shape of the sealing strip 400 on the actual vehicle window assembly 500, so that the profiling surface 321 on the profiling member 320 is accurately matched with the surface of the sealing strip 400 to be tested, highly simulating the use environment of the vehicle window assembly 500, and improving the accuracy of fatigue resistance test on the sealing strip 400.

[0046] It is not difficult to understand that when the automobile sealing strip fatigue test device of the embodiment of the present application needs to perform fatigue test on the sealing strip 400 on the vehicle window assembly 500, the vehicle window assembly 500 to be tested can be placed on the fixing mechanism 200 and fixed by the fixing mechanism 200, so that the sealing strip 400 on the vehicle window assembly 500 is close to the pressing mechanism 300 and keeps the position fixed. Then, the driving component 310 drives the profiling member 320 to repeatedly press the sealing strip 400 at a certain frequency and force, so that the profiling surface 321 on the profiling member 320 repeatedly fits and squeezes the surface of the sealing strip 400, accurately simulating the repeated pressing and releasing action of the automobile sealing strip during the closing process of the automobile door, so that the sealing strip 400 is worn, thereby realizing the fatigue test of the sealing strip 400 on the vehicle window assembly 500.

[0047] It should be noted that the structure of the sealing strip 400 on the vehicle window assembly 500 and the rationality of the assembly design can be identified by observing the fracture cracks and wear conditions on the surface of the sealing strip 400 .

[0048] Obviously, the automobile sealing strip fatigue test device of the embodiment of the present application can realize fatigue test on the sealing strips 400 of window assemblies 500 of different specifications through the coordinated arrangement of the test bench 100, the fixing mechanism 200 and the pressing mechanism 300, without the need to customize corresponding test tooling for window assemblies 500 of different specifications, thereby reducing the test cost and test cycle of fatigue test on the sealing strips 400 of the window assembly 500, and can perform fatigue test on the sealing strips 400 on the automobile window assembly in a low-cost and high-efficiency manner, and has good universality and compatibility.

[0049] See also Figure 1 , Figure 2 and Figure 3 In some embodiments of the present application, the driving assembly 310 is configured to drive the contoured member 320 to swing relative to the vehicle window assembly 500 so that the contoured surface 321 presses against the surface of the sealing strip 400 or disengages from the surface of the sealing strip 400 .

[0050] It is not difficult to understand that the driving component 310 can drive the profiling member 320 to swing back and forth at a certain angle, frequency and speed relative to the vehicle window assembly 500, so that the profiling surface 321 of the profiling member 320 repeatedly fits and extrude the surface of the sealing strip 400, accurately simulating the repeated pressing and releasing action of the automobile sealing strip during the closing process of the automobile door. The driving component 310 drives the profiling member 320 to repeatedly press and hold the sealing strip 400 in a swinging manner, which also well simulates the action of the automobile door rotating to open or close, thereby improving the test accuracy of the fatigue resistance test on the automobile sealing strip.

[0051] Further, see Figure 1 , Figure 2and Figure 3 The driving assembly 310 includes a rotating driving member 311 and a rotating shaft 312. The output end of the rotating driving member 311 is connected to the rotating shaft 312. The profiling member 320 is detachably connected to the rotating shaft 312, and the connection position of the profiling member 320 and the rotating shaft 312 can be adjusted.

[0052] Specifically, the rotating driving member 311 can be, but is not limited to, an electric motor, etc. In one embodiment, the rotating driving member 311 is a servo motor, and the rotating shaft 312 is connected to the output end of the servo motor. In this way, the rotating angle, frequency, and number of rotations of the rotating shaft 312 can be controlled by setting the rotating angle, frequency, and number of rotations of the servo motor, thereby controlling the swing angle, speed, and number of times of the contour member 320, more accurately simulating the use and stress environment of the sealing strip 400 on the vehicle window assembly 500, and further improving the test accuracy of the fatigue resistance test on the vehicle sealing strip.

[0053] In addition, by making the profiling member 320 detachably connected to the rotating shaft 312 , the profiling member 320 can be easily disassembled, assembled and replaced.

[0054] At the same time, considering that the specifications and sizes of the sealing strips 400 on the window assemblies 500 of different vehicle models are inconsistent, when the window assembly 500 is fixed by the fixing mechanism 200, the connection position of the profiling member 320 and the rotating shaft 312 can be adjusted to achieve the effect of adjusting the fitting extrusion area or width between the profiling surface 321 on the profiling member 320 and the surface of the sealing strip 400. In this way, the sealing strips 400 of different specifications and sizes can be adapted, and the test requirements for fatigue resistance tests on the sealing strips 400 on the window assemblies 500 of different vehicle models are met, thereby improving the overall compatibility and universality of the test device.

[0055] Further, see Figure 2 and Figure 3 The driving assembly 310 also includes a connecting member 313 arranged on the rotating shaft 312 and a first fastener (not shown in the figure) arranged on the connecting member 313. The connecting member 313 has a plurality of first strip holes 3131 spaced apart along its length direction. The contour member 320 has a plurality of first connecting holes along its length direction. The first fastener passes through the first strip hole 3131 and is detachably connected to the first connecting hole (not shown in the figure).

[0056] Specifically, the connecting member 313 is constructed as a plate-like structure, and the connecting member 313 can be fixed on the rotating shaft 312 by screws to facilitate disassembly and replacement. Each first strip hole 3131 on the connecting member 313 extends along the width direction of the connecting member 313, that is, the first strip hole 3131 is perpendicular to the axial direction of the rotating shaft 312, and all the first strip holes 3131 are distributed at intervals along the length direction of the connecting member 313.

[0057] Correspondingly, the contoured member 320 is also constructed as a plate-like structure, all the first connection holes on the contoured member 320 are threaded holes, and the first fasteners are bolts or screws that match the threaded holes.

[0058] It is understandable that when the tester needs to adjust the position of the profiling member 320 on the connecting member 313, the first fastener can be passed through the first strip hole 3131 at the corresponding position on the connecting member 313 and connected to the first connecting hole at the corresponding position to adjust the axial and radial positions of the profiling member 320 on the rotating shaft 312, thereby adjusting the fitting extrusion area or width between the profiling surface 321 on the profiling member 320 and the surface of the sealing strip 400. The entire adjustment process is simple and convenient to operate, and can achieve the adaptation of sealing strips 400 of different specifications and sizes, meet the test requirements of fatigue resistance test of sealing strips 400 on window assemblies 500 of different models, and improve the overall compatibility and universality of the test device.

[0059] In some embodiments of the present application, see Figure 4 and Figure 5 The automobile sealing strip fatigue resistance test device further includes a pressure sensor 600 , which is configured to detect the pressure value of the sealing strip 400 when the contoured member 320 presses the sealing strip 400 .

[0060] It should be noted that, in the present application, the sealing strip 400 on the vehicle window assembly 500 is a plastic structure, which has the ability of elastic deformation and deformation recovery.

[0061] Based on this, in one embodiment, a mounting block 120 is provided on the test bench 100, and a pressure sensor 600 is provided on the mounting block 120, and a probe of the pressure sensor 600 abuts against the bottom of the sealing strip 400. The pressure sensor 600 may be one or more. The pressure sensor 600 and the driving assembly 310 are both connected to the backend controller (not shown in the figure) by signal.

[0062] In this way, when the driving component 310 drives the contour member 320 to press the sealing strip 400 with a certain force, the pressure sensor 600 detects in real time the pressure value of the sealing strip 400 exerted by the contour member 320, and the controller can display in real time the pressure value exerted on the sealing strip 400 according to the detection signal of the pressure sensor 600, thereby more accurately and intuitively performing fatigue resistance test on the sealing strip 400 on the automobile window assembly.

[0063] Of course, in other embodiments, the pressure sensor 600 can also be configured as a thin film pressure sensor. In this case, the pressure sensor 600 can be directly set on the surface where the contour member 320 contacts the sealing strip 400. When the driving component 310 drives the contour member 320 to repeatedly press the sealing strip 400 at a certain frequency and force, the pressure sensor 600 can also detect in real time the pressure value of the contour member 320 on the sealing strip 400.

[0064] Further, see Figure 4 and Figure 5 The automobile sealing strip fatigue resistance testing device further includes a distance sensor 700 , which is configured to detect the deformation of the sealing strip 400 when the contoured member 320 presses the sealing strip 400 .

[0065] It is understandable that the sealing strip 400 is roughly in a tongue structure, which has a certain curvature. Based on this, when the fixing mechanism 200 fixes the vehicle window assembly 500, the sealing strip 400 on the vehicle window assembly 500 is in the initial position, the distance sensor 700 is set just below the lowest point of the sealing strip 400, and the distance sensor 700 and the pressure sensor 600 are connected to the controller in the background. In this way, when the driving component 310 drives the profiling member 320 to press the sealing strip 400 with a certain force, the displacement of the lowest point of the sealing strip 400 detected by the distance sensor 700 is the deformation of the sealing strip 400. At this time, the pressure sensor 600 also synchronously detects the pressure value of the sealing strip 400. The controller can simultaneously obtain the detection signal of the pressure sensor 600 and the detection signal of the distance sensor 700, and then correspond the pressure value of the sealing strip 400 to the deformation amount under the pressure value, so as to accurately and intuitively feedback the rationality of the structure and assembly design of the sealing strip 400 through quantitative data, so that subsequent R&D personnel can make targeted improvements.

[0066] Of course, the pressure sensor 600, the distance sensor 700 and the drive assembly 310 are all connected to the controller in the background. The controller can control the frequency and strength of the drive assembly 310 to drive the contour member 320 to move according to the detection signals of the pressure sensor 600 and the distance sensor 700, so that the contour member 320 presses the sealing strip 400 with a predetermined frequency and strength, so as to more accurately simulate the repeated pressing and releasing action of the automobile sealing strip during the closing process of the automobile door, improve the test accuracy of the fatigue resistance test of the automobile sealing strip, and control the action of the drive assembly 310 through the detection signals fed back by the pressure sensor 600 and the distance sensor 700, so as to reduce the risk of structural damage caused by excessive pressing of the sealing strip 400 by the contour member 320.

[0067] In some embodiments of the present application, see Figure 1 , Figure 6 and Figure 7 The fixing mechanism 200 includes a support column 210 and a clamping head 220 . The support column 210 is used to support the vehicle window assembly 500 . The clamping head 220 can be aligned with the support column 210 up and down to clamp the vehicle window assembly 500 between the support column 210 and the clamping head 220 .

[0068] It is understandable that the supporting function of the support column 210 and the clamping function of the clamping head 220 fix the vehicle window assembly 500 in a suspended state, thereby preventing the sealing strip 400 and other curved protruding structures on the vehicle window assembly 500 from contacting the test bench 100, thereby preventing the vehicle window assembly 500 from being hard damaged during the fatigue test.

[0069] There can be multiple fixing mechanisms 200. When it is necessary to perform a fatigue test on the sealing strip 400 on the window assembly 500, the tester can place the window assembly 500 to be tested on the support column 210 on each fixing mechanism 200, and then hold the clamping head 220 on each fixing mechanism 200 against the upper surface of the window assembly 500. In this way, the window assembly 500 is clamped between the support column 210 and the clamping head 220 to fix the window assembly 500, thereby avoiding positional displacement of the window assembly 500 and the window assembly 500 on the window assembly 500 during the fatigue test, thereby ensuring the test accuracy of the fatigue test.

[0070] Furthermore, the top of the support column 210 has a support arc surface 211, and the support arc surface 211 is used to contact and cooperate with the vehicle window assembly 500. In this way, the support arc surface 211 at the top of the support column 210 contacts and cooperates with the lower surface of the vehicle window assembly 500 to better adapt to the arc structure of the vehicle window assembly 500, and strengthen the fixing effect of the fixing mechanism 200 on the vehicle window assembly 500.

[0071] Further, see Figure 6 and Figure 7 The fixing mechanism 200 further includes a mounting seat 230 and a first rotating rod 240 hinged to the mounting seat 230 , and the clamping head 220 is disposed on the first rotating rod 240 .

[0072] Specifically, the mounting seat 230 can be fixed on the test bench 100 by screws. The clamping head 220 can be detachably fixed on the first rotating rod 240 by screws to facilitate the disassembly, assembly and replacement of the clamping head 220. The first rotating rod 240 is hinged on the mounting seat 230 by a pin. The tester can manually rotate the first rotating rod 240 to align the clamping head 220 on the first rotating rod 240 with the support column 210 to clamp the vehicle window assembly 500 between the support column 210 and the clamping head 220. After the fatigue test of the sealing strip 400 on the vehicle window assembly 500 is completed, the tester can rotate the first rotating rod 240 again to disengage the clamping head 220 on the first rotating rod 240 from the surface of the vehicle window assembly 500, release the fixing effect on the vehicle window assembly 500, and facilitate the tester to take out the vehicle window assembly 500.

[0073] Further, see Figure 6 and Figure 7 The fixing mechanism 200 also includes a second rotating rod 250 and a limit block 260. The second rotating rod 250 is hinged to the mounting seat 230. The two ends of the limit block 260 are respectively rotatably connected to the second rotating rod 250 and the first rotating rod 240. The limit block 260 has a stop portion 261 that abuts against the first rotating rod 240.

[0074] Specifically, the end of the first rotating rod 240 away from the clamping head 220 has a first hollow avoidance cavity 241, the second rotating rod 250 has a second hollow avoidance cavity 251, the end of the first rotating rod 240 away from the clamping head 220 passes through the second hollow avoidance cavity 251 and is hinged to the mounting seat 230, the limit block 260 is in the first hollow avoidance cavity 241, and the upper and lower ends of the limit block 260 are respectively hinged to the second rotating rod 250 and the first rotating rod 240. In addition, the stopper 261 on the limit block 260 is constructed as a notch structure that abuts against the upper end surface of the first rotating rod 240.

[0075] It should be noted that when the clamping head 220 on the first rotating rod 240 and the supporting column 210 are aligned vertically, the first rotating rod 240 is in a horizontal state and the second rotating rod 250 is in a vertical state. The stopper 261 on the limit block 260 stops the first rotating rod 240, so that the first rotating rod 240 remains in a horizontal state, and the vehicle window assembly 500 is stably clamped between the clamping head 220 and the supporting column 210.

[0076] When the tester releases the fixation of the vehicle window assembly 500, the tester can rotate the first rotating rod 240 upwards. It can be understood that during the upward rotation of the first rotating rod 240, the second rotating rod 250 will be driven to rotate synchronously through the limit block 260. In this way, the clamping head 220 on the first rotating rod 240 is separated from the surface of the vehicle window assembly 500, so that the user can take out the vehicle window assembly 500 conveniently.

[0077] In some embodiments of the present application, see Figure 1 There are at least three fixing mechanisms 200, all of which are spaced apart along the circumferential direction, and the distance between two adjacent fixing mechanisms 200 can be adjusted.

[0078] For example, there are three fixing mechanisms 200, and the three fixing mechanisms 200 respectively fix three positions on the vehicle window assembly 500 to ensure the stability of the position of the vehicle window assembly 500. In addition, by adjusting the interval between two adjacent fixing mechanisms 200, the fixing position of the vehicle window assembly 500 by the fixing mechanism 200 can be changed to achieve adaptation to vehicle window assemblies 500 of different specifications and sizes, thereby improving the compatibility and adaptability of the automobile sealing strip fatigue resistance test device.

[0079] Specifically in the embodiment, see Figure 6 and Figure 7 The fixing mechanism 200 is provided with a second fastener (not shown in the figure) and a second strip hole 231. The test bench 100 is provided with a plurality of second connection holes 110 at intervals. The second fastener passes through the second strip hole 231 and is detachably connected to the second connection hole 110. The second connection hole 110 may be a threaded hole, and the second fastener is a screw or bolt threadedly connected to the threaded hole.

[0080] It is not difficult to understand that when it is necessary to adjust the spacing between two adjacent fixing mechanisms 200 or to individually adjust the installation position of the fixing mechanism 200 on the test bench 100, the installation position of the fixing mechanism 200 on the test bench 100 can be adjusted by passing the second fastener through the second strip hole 231 and connecting it to the second connecting hole 110 at the corresponding position on the test bench 100, so as to change the clamping position of the window assembly 500 by the clamping head 220 and the support column 210 on the fixing mechanism 200, so as to achieve adaptation to window assemblies 500 of different specifications and sizes.

[0081] Of course, it should also be noted that, in other embodiments, in the fixing mechanism 200, the support column 210 can be fixed on the mounting base 230, and a third strip hole can also be set on the support column 210. The third strip hole is connected to the second connecting hole 110 at the corresponding position on the test bench 100 in a coordinated manner to achieve the effect of individually adjusting the installation position of the support column 210 on the test bench 100.

[0082] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A fatigue test device for automobile sealing strips, used for fatigue testing of sealing strips on vehicle window assemblies, characterized in that: include: Test bench; A fixing mechanism, provided on the test bench, for fixing the vehicle window assembly; The pressing and releasing mechanism comprises a driving assembly and a profiling member connected to the driving assembly, wherein the driving assembly can drive the profiling member to repeatedly press the sealing strip, and the profiling member has a profiling surface matched with the surface of the sealing strip.

2. The automobile sealing strip fatigue resistance test device according to claim 1, characterized in that: The driving assembly is configured to drive the contoured member to swing relative to the vehicle window assembly so that the contoured surface presses against the surface of the sealing strip or separates from the surface of the sealing strip.

3. The automobile sealing strip fatigue resistance test device according to claim 2, characterized in that: The driving assembly comprises a rotary driving member and a rotating shaft, the output end of the rotary driving member is connected to the rotating shaft, the profiling member is detachably connected to the rotating shaft, and the connection position of the profiling member and the rotating shaft can be adjusted.

4. The automobile sealing strip fatigue resistance test device according to claim 3, characterized in that: The driving assembly also includes a connecting member arranged on the rotating shaft and a first fastener arranged on the connecting member, the connecting member has a plurality of first strip holes spaced apart along its length direction, the contoured member has a plurality of first connecting holes along its length direction, the first fastener passes through the first strip hole and is detachably connected to the first connecting hole.

5. The automobile sealing strip fatigue resistance test device according to claim 1, characterized in that: The automobile sealing strip fatigue resistance testing device further comprises a pressure sensor, which is configured to detect the pressure value applied to the sealing strip when the contoured member presses the sealing strip.

6. The automobile sealing strip fatigue resistance test device according to claim 1 or 5, characterized in that: The automobile sealing strip fatigue resistance testing device further comprises a distance sensor, which is configured to detect the deformation amount of the sealing strip when the contoured member presses the sealing strip.

7. The automobile sealing strip fatigue resistance test device according to claim 1, characterized in that: The fixing mechanism comprises a support column and a clamping head, wherein the support column is used to support the vehicle window assembly, and the clamping head can be aligned with the support column up and down to clamp the vehicle window assembly between the support column and the clamping head.

8. The automobile sealing strip fatigue resistance test device according to claim 7, characterized in that: The fixing mechanism further comprises a mounting seat and a first rotating rod hinged to the mounting seat, and the clamping head is arranged on the first rotating rod.

9. The automobile sealing strip fatigue resistance test device according to claim 8, characterized in that: The fixing mechanism also includes a second rotating rod and a limit block, the second rotating rod is hinged to the mounting seat, the two ends of the limit block are respectively rotatably connected to the second rotating rod and the first rotating rod, and the limit block has a stopper that abuts against the first rotating rod.

10. The automobile sealing strip fatigue resistance test device according to claim 7, characterized in that: The top end of the support column is provided with a support arc surface, and the support arc surface is used for contacting and cooperating with the vehicle window assembly.

11. The automobile sealing strip fatigue resistance test device according to claim 1 or 7, characterized in that: There are at least three fixing mechanisms, all of which are distributed at intervals along the circumferential direction, and the distance between two adjacent fixing mechanisms can be adjusted.

12. The automobile sealing strip fatigue resistance test device according to claim 11, characterized in that: The fixing mechanism is provided with a second fastener and a second strip hole, and the test bench is provided with a plurality of second connecting holes at intervals, and the second fastener passes through the second strip hole and is detachably connected to the second connecting hole.

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