A durability testing device

Abstract

This application discloses a durability testing device, relating to the technical field of automotive parts testing equipment. It includes a frame with a testing platform mounted on it; several contour jigs mounted on the testing platform for installing anti-pinch strips on automotive tailgates; a load assembly slidably mounted on the frame and mounted above the contour jigs, the load assembly including several sets of loading components, each contour jig equipped with at least one set of loading components, each loading component including a loading end and a load end, the loading end for applying pressure to the anti-pinch strips fixed to the contour jigs, and the load end having adjustable weight; and a drive assembly mounted on the frame, connected to the load assembly, for driving the load assembly to rise or fall. This durability testing device can simultaneously apply load to anti-pinch strips fixed to contour jigs, enabling durability testing of multiple anti-pinch strips in a single loading operation, effectively improving testing efficiency.

Description

Technical Field

[0001] This application relates to the field of automotive parts testing equipment technology, and in particular to a durability testing device. Background Technology

[0002] With the trend of automotive electrification, electric tailgates are becoming increasingly widespread. With the large-scale application of electric tailgates, the requirement for anti-pinch protection has increased accordingly. This is because the most common safety risk in the daily use of electric tailgates is injury from being pinched. Therefore, the anti-pinch function of the tailgate is essential. The effectiveness of this function is closely related to the performance of the anti-pinch strip. The durability test of the tailgate simulates the state of the electric tailgate in use, testing the deformation and failure parameters of the anti-pinch strip under specific frequency, specific environment, and specific time duration. This test requires the fabrication of specific tooling. Utility Model Content

[0003] This application aims to solve one of the aforementioned technical problems in the prior art. Therefore, embodiments of this application provide a durability testing device.

[0004] According to an embodiment of this application, a durability testing device is provided, including a frame on which a testing platform is provided; Several contouring fixtures are set on the test platform, and the contouring fixtures are used for installing the anti-pinch strip on the tailgate of a car; A load assembly is slidably disposed on the frame and mounted above the contour jig. The load assembly includes several sets of loading components. Each contour jig is equipped with at least one set of the loading components. Each loading component includes a loading end and a load end. The loading end is used to pressurize the anti-pinch strip of the car tailgate fixed to the contour jig. The weight of the load end is adjustable. A drive component is disposed on the frame and connected to the load component. The drive component is used to drive the load component to rise or fall.

[0005] The aforementioned durability testing device has at least the following beneficial effects: the multiple profiling fixtures can be used to position and fix multiple car tailgate anti-pinch strips, and by setting multiple sets of loading components, at least one set of loading components can be used to perform load loading tests on the car tailgate anti-pinch strips positioned and fixed to the profiling fixtures. Since the load components are slidably set on the frame and connected to the drive components, the loading components on the load components can simultaneously apply loads to the car tailgate anti-pinch strips positioned and fixed to the profiling fixtures under the drive of the drive components, so as to complete the durability test of multiple car tailgate anti-pinch strips in one loading, and can also obtain the deformation failure parameters of multiple products at the same time, effectively improving the testing efficiency.

[0006] According to the durability testing device described in the embodiments of this application, the load assembly further includes a mounting frame and a mounting component. The loading component is disposed on the mounting frame via the mounting component, and a floating structure is provided between the mounting component and the loading component so that the loading component can be adjusted by floating in the vertical direction.

[0007] According to the durability testing device described in the embodiments of this application, the loading member includes a mounting rod, which is inserted into the mounting component to enable the mounting rod to move in the vertical direction, and the floating structure is used to limit the range of motion of the mounting rod in the vertical direction.

[0008] According to the durability testing device described in the embodiments of this application, the mounting rod is provided with a sliding groove arranged in a vertical direction, the mounting component is provided with a limiting component, the limiting component passes through the sliding groove, and the limiting component cooperates with the sliding groove to form the floating structure.

[0009] According to the durability testing device described in the embodiments of this application, the mounting rod is provided with a limiting part, which divides the mounting rod into two sections. The loading component further includes several counterweights, which are sleeved on one section of the mounting rod, and the other section of the mounting rod is inserted into the mounting component.

[0010] According to the durability testing device described in the embodiments of this application, the end of the mounting rod is provided with a mounting part, and the mounting part is provided with a detachable single-point clamping block or a sheet-like clamping block to form the loading end. The contact area between the single-point clamping block and the anti-pinch strip of the car tailgate is smaller than the contact area between the sheet-like clamping block and the anti-pinch strip of the car tailgate.

[0011] According to the durability testing device described in the embodiments of this application, the mounting frame is slidably disposed on the frame body via guide rods and guide sleeves.

[0012] According to the durability testing device described in the embodiments of this application, the mounting frame is made of aluminum profile, and a T-slot is provided on the outer surface of the aluminum profile along the length direction. The screws passing through the mounting component are threadedly connected to the nuts provided in the T-slot to fix the mounting component to the aluminum profile.

[0013] According to the durability testing device described in the embodiments of this application, the driving assembly includes a motor, a reducer, and a drive screw. The motor is fixed to the frame, the output shaft of the motor is connected to the reducer, the output end of the reducer is connected to the drive screw, and the screw nut of the drive screw is fixedly connected to the mounting frame.

[0014] According to the durability testing device described in the embodiments of this application, the profiling fixture includes a positioning part, a positioning pin, and a locking pin. The positioning part is used to position the main body of the anti-pinch strip of the car tailgate. The positioning pin is used to position the first pin hole of the anti-pinch strip of the car tailgate. The locking pin passes through the second pin hole of the anti-pinch strip of the car tailgate and is inserted and connected to the positioning part.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The present application will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the structure of the anti-pinch strip for the tailgate of a car according to an embodiment of this application; Figure 2 This is a schematic diagram of the durability testing device in an embodiment of this application. Figure 1 ; Figure 3 This is a schematic diagram of the durability testing device in an embodiment of this application. Figure 2 ; Figure 4 yes Figure 3 A cross-sectional view along the AA direction; Figure 5 This is a schematic diagram of the structure of the loading component in this embodiment of the application. Figure 1 ; Figure 6 This is a schematic diagram of the structure of the loading component in this embodiment of the application. Figure 2 ; Figure 7 yes Figure 6 A cross-sectional view along the BB direction; Figure 8 This is a schematic diagram of the durability testing device under load working state in an embodiment of this application; Figure 9 This embodiment of the application illustrates the loading process of the loading component and the working state of the anti-pinch strip on the tailgate. Figure 1 ; Figure 10 This embodiment of the application illustrates the loading process of the loading component and the working state of the anti-pinch strip on the tailgate. Figure 2 ; Figure 11 This is a schematic diagram of the contour jig structure in the embodiments of this application; Figure 12 This is a schematic diagram of the structure of the anti-pinch strip on the tailgate of a car installed on a contour jig in an embodiment of this application.

[0017] Reference numerals: 100 for anti-pinch strip on tailgate, 110 for first pin hole, 120 for second pin hole, 200 for frame, 300 for contour jig, 310 for positioning part, 320 for positioning pin, 330 for locking pin, 400 for load assembly, 401 for guide rod, 410 for mounting frame, 420 for mounting rod, 421 for slide groove, 422 for limiting part, 430 for counterweight, 440 for mounting part, 441 for sheet-like clamping block, 450 for mounting component, 451 for limiting component, 500 for drive assembly, 510 for motor, 520 for reducer, 530 for drive screw. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0019] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0022] Figure 1 The tailgate anti-pinch strip 100 of this application embodiment is to be durable, wherein the outer surface of the tailgate anti-pinch strip 100 is provided with a first pin hole 110 and a second pin hole 120 for positioning.

[0023] like Figures 2 to 4 The durability testing device of this application embodiment includes a frame 200, a plurality of contour jigs 300, a load component 400, and a drive component 500. The contour jigs 300, the load component 400, and the drive component 500 are all disposed on the frame 200.

[0024] A test platform is set on the frame 200, and several contour jigs 300 are spaced apart on the test platform. The contour jigs 300 are used for the installation and positioning of the anti-pinch strip 100 of the car tailgate, which facilitates the subsequent load-bearing durability test.

[0025] The load assembly 400 is slidably mounted on the frame 200. The load assembly 400 is positioned above the contour jig 300 and can move closer to or further away from the contour jig 300. The load assembly 400 includes several sets of loading components. Each contour jig 300 is equipped with at least one set of loading components. These at least one set of loading components are used to perform a load durability pressure test on the car tailgate anti-pinch strip 100 fixed to the contour jig 300. Each loading component includes a loading end and a load end. The loading end is used to apply pressure to the car tailgate anti-pinch strip 100 fixed to the contour jig 300, while the weight of the load end is adjustable, allowing for different loading weights to be adjusted according to different testing needs.

[0026] The drive component 500 is connected to the load component 400. The drive component 500 provides the load component 400 with a driving force for vertical adjustment. During the durability test, the drive component 500 drives the load component 400 to adjust its position so that the loading component can accurately apply the load to the anti-pinch strip 100 of the car tailgate.

[0027] In the durability testing device of this application, multiple contour jigs 300 are provided to position and fix multiple car tailgate anti-pinch strips 100. By setting multiple sets of loading components, at least one set of loading components is used to perform load loading tests on the car tailgate anti-pinch strips 100 positioned and fixed in the contour jigs 300. Since the load component 400 is slidably set on the frame 200 and the load component 400 is connected to the drive component 500, the loading component on the load component 400 can simultaneously apply load to the car tailgate anti-pinch strips 100 positioned and fixed in the contour jigs 300 under the drive of the drive component 500. This enables the durability test of multiple car tailgate anti-pinch strips 100 to be completed in one loading, and the deformation failure parameters of multiple products can be obtained at the same time, effectively improving the testing efficiency.

[0028] In some embodiments, such as Figures 5 to 7 As shown, the load assembly 400 also includes a mounting frame 410 and a mounting member 450. The loading member is mounted on the mounting frame 410 via the mounting member 450. A floating structure is provided between the mounting member 450 and the loading member so that the loading member can be adjusted by floating in the vertical direction.

[0029] The floating structure prevents rigid stress on parts of the tailgate anti-pinch strip 100 due to different contact points or times between the loading components and the tailgate anti-pinch strip 100 during the lifting process. In addition, the floating structure can eliminate the test point errors of multiple sets of loading components, protecting the tailgate anti-pinch strip 100 while making the test points more accurate.

[0030] Specifically, such as Figure 6 and Figure 7 As shown, the loading component includes a mounting rod 420, which is inserted into the mounting member 450 so that the mounting rod 420 can move in the vertical direction. The floating structure is used to limit the range of motion of the mounting rod 420 in the vertical direction, so that within the adjustment range, the loading components at each point can synchronously press against the anti-pinch strip 100 of the car tailgate, which facilitates subsequent synchronous loading durability testing.

[0031] Among them, such as Figure 7 As shown, the mounting rod 420 is provided with a vertically oriented sliding groove 421, and the mounting component 450 is provided with a limiting component 451. The limiting component 451 passes through the sliding groove 421, and the limiting component 451 and the sliding groove 421 cooperate to form a floating structure. The cooperation between the limiting component 451 and the sliding groove 421 restricts the vertical movement range of the mounting rod 420, thereby forming a floating adjustment of the mounting rod 420. This ensures that the loading components at each point are in flexible contact with the anti-pinch strip 100 of the car tailgate during the loading process, rather than in rigid contact.

[0032] like Figure 7 As shown in the embodiment of this application, a limiting part 422 is provided on the mounting rod 420, which divides the mounting rod 420 into two sections. The loading component also includes several counterweights 430. The counterweights 430 are fitted onto one section of the mounting rod 420. The number of counterweights 430 can be adjusted according to the required load to meet the required load verticality. The other section of the mounting rod 420 is inserted into the mounting piece 450. The limiting part 422 can support the counterweights 430 and also position the mounting rod 420 on the mounting piece 450, which is convenient for subsequent durability loading tests.

[0033] In some other embodiments, such as Figures 8 to 10 As shown, the end of the mounting rod 420 is provided with a mounting part 440, and a detachable single-point clamping block or a sheet-like clamping block 441 is provided on the mounting part 440 to form a loading end. The contact area between the single-point clamping block and the anti-pinch strip 100 of the car tailgate is smaller than the contact area between the sheet-like clamping block 441 and the anti-pinch strip 100 of the car tailgate.

[0034] The clamping block on the mounting part 440 can be replaced with a single-point clamping block or a sheet-like clamping block 441 as needed to meet the load conditions of the car tailgate anti-pinch strip 100 under different installation conditions. In order to facilitate the disassembly and assembly of the clamping block, the mounting part 440 is provided with a slot, and the single-point clamping block or sheet-like clamping block 441 is provided with a locking block that cooperates with the slot. Quick installation is achieved through the cooperation of the locking block and the slot.

[0035] In some other embodiments, the mounting frame 410 is slidably mounted on the frame 200 via guide rods 401 and guide sleeves. Specifically, the guide rods 401 are fixed to the mounting frame 410, and guide sleeves are fixed on the frame 200. The guide rods 401 are inserted into the guide sleeves. The arrangement of multiple guide rods 401 makes the sliding of the mounting frame 410 more stable and smooth, and also ensures that the position of the mounting frame 410 at each price increase is controllable.

[0036] In this embodiment, the mounting frame is made of aluminum profile, and a T-slot is provided on the outer surface of the aluminum profile along its length. A screw passing through the mounting component 450 is threadedly connected to a nut located within the T-slot to fix the mounting component 450 to the aluminum profile. Through the combined use of the T-slot, screw, and nut, the horizontal position of the mounting component 450 on the mounting frame 410 is adjustable, facilitating adjustment of the load test position according to different models of the automotive tailgate anti-pinch strip 100.

[0037] In some other embodiments, the drive assembly 500 includes a motor 510, a reducer 520, and a drive screw 530. The motor 510 is fixed to the frame 200 and hidden below the test platform. The output shaft of the motor 510 is connected to the reducer 520 to increase the output torque of the motor 510. The output end of the reducer 520 is connected to the drive screw 530. The screw nut of the drive screw 530 is fixedly connected to the mounting frame 410. Through the cooperation of the reducer 520 and the drive screw 530, the lifting position of the mounting frame 410 is controllable and the position of each lifting adjustment can be precisely controlled.

[0038] like Figure 11 and Figure 12As shown, to facilitate the rapid installation and positioning of the car tailgate anti-pinch strip 100, the contour jig 300 includes a positioning part 310, a positioning pin 320, and a locking pin 330. The positioning part 310 is used to position the main body of the car tailgate anti-pinch strip 100. The outer surface of the positioning part 310 is similar to the mounting groove of the car tailgate anti-pinch strip 100 to facilitate rapid positioning of the car tailgate anti-pinch strip 100. The positioning pin 320 is used to position the first pin hole 110 of the car tailgate anti-pinch strip 100. The locking pin 330 passes through the second pin hole 120 of the car tailgate anti-pinch strip 100 and is inserted into the positioning part 310, thereby enabling rapid positioning and fixing of the car tailgate anti-pinch strip 100 and preventing the car tailgate anti-pinch strip 100 from shifting during testing.

[0039] The durability testing process is as follows: Initially, the mounting frame 410 is raised to the top of the frame. According to the test requirements, the counterweight 430 is installed on the mounting rod 420. Three contour jigs 300 on each side are then installed onto the tailgate anti-pinch strip 100 and secured with pins. When the test begins, the motor 510 is started, which drives the drive screw 530 via the reducer 520 to slowly lower the mounting frame 410. The test stops when all single-point clamping blocks are pressed against the tailgate anti-pinch strip 100 and is maintained for the required test time. After the test, the mounting frame 410 is raised to release the load. The dimensional parameters of the tailgate anti-pinch strip 100 are measured, and its failure is verified.

[0040] When testing sheet loads, replace the single-point clamping block on the mounting part 440 of each group of loading components with a sheet-shaped clamping block 441, and remove the other single-point clamping blocks. Repeat the above operation for testing.

[0041] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A durability testing device, characterized in that: include A frame, on which a test platform is mounted; Several contouring fixtures are set on the test platform, and the contouring fixtures are used for installing the anti-pinch strip on the tailgate of a car; A load assembly is slidably disposed on the frame and mounted above the contour jig. The load assembly includes several sets of loading components. Each contour jig is equipped with at least one set of the loading components. Each loading component includes a loading end and a load end. The loading end is used to pressurize the anti-pinch strip of the car tailgate fixed to the contour jig. The weight of the load end is adjustable. A drive component is disposed on the frame and connected to the load component. The drive component is used to drive the load component to rise or fall.

2. The durability testing device according to claim 1, characterized in that: The load assembly also includes a mounting frame and a mounting component. The loading component is mounted on the mounting frame via the mounting component. A floating structure is provided between the mounting component and the loading component so that the loading component can be adjusted by floating in the vertical direction.

3. The durability testing device according to claim 2, characterized in that: The loading component includes a mounting rod inserted into the mounting member to allow the mounting rod to move in the vertical direction, and the floating structure is used to limit the range of motion of the mounting rod in the vertical direction.

4. The durability testing device according to claim 3, characterized in that: The mounting rod is provided with a vertically oriented sliding groove, and the mounting component is provided with a limiting component that passes through the sliding groove. The limiting component and the sliding groove cooperate to form the floating structure.

5. The durability testing device according to claim 3, characterized in that: The mounting rod is provided with a limiting part, which divides the mounting rod into two sections. The loading component also includes several counterweights, which are sleeved on one section of the mounting rod, and the other section of the mounting rod is inserted into the mounting component.

6. The durability testing device according to claim 3, characterized in that: The end of the mounting rod is provided with a mounting part, and the mounting part is provided with a detachable single-point clamping block or a sheet-like clamping block to form the loading end. The contact area between the single-point clamping block and the anti-pinch strip of the car tailgate is smaller than the contact area between the sheet-like clamping block and the anti-pinch strip of the car tailgate.

7. The durability testing device according to claim 2, characterized in that: The mounting frame is slidably mounted on the frame body via guide rods and guide sleeves.

8. The durability testing device according to claim 2, characterized in that: The mounting frame is made of aluminum profile, and a T-slot is provided on the outer surface of the aluminum profile along its length. The screws passing through the mounting component are threadedly connected to the nuts provided in the T-slot to fix the mounting component to the aluminum profile.

9. The durability testing device according to claim 2, characterized in that: The drive assembly includes a motor, a reducer, and a drive screw. The motor is fixed to the frame, the output shaft of the motor is connected to the reducer, the output end of the reducer is connected to the drive screw, and the screw nut of the drive screw is fixedly connected to the mounting frame.

10. The durability testing device according to claim 1, characterized in that: The profiling fixture includes a positioning part, a positioning pin, and a locking pin. The positioning part is used to position the main body of the anti-pinch strip of the car tailgate. The positioning pin is used to position the first pin hole of the anti-pinch strip of the car tailgate. The locking pin passes through the second pin hole of the anti-pinch strip of the car tailgate and is inserted into the positioning part.

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