Anti-pinch force test system and vehicle tail door multi-position anti-pinch force test bench

Abstract

The invention discloses an anti-pinch force test system and a vehicle tail gate multi-position anti-pinch force test bench, and relates to the technical field of anti-pinch testing, and the vehicle tail gate multi-position anti-pinch force test bench comprises a tail gate base; an impact block is arranged on the periphery of the tail door frame; the first driving part is used for driving the tail door frame to rotate around the tail door base and simulating the opening and closing movement of the actual vehicle tail door; the rotation center of the anti-pinch arm mechanism and the rotation center of the tail door frame are concentrically distributed, and the anti-pinch arm mechanism is arranged on the periphery of the tail door frame in a sleeving mode; a force measuring system; the driving end of the second driving piece is connected with one side of the anti-clamping arm mechanism so as to drive the other end of the anti-clamping arm mechanism to rotate along the arc-shaped track and enable the anti-clamping arm mechanism to stop at any position; and the first driving piece, the force measuring system and the second driving piece are all connected with the control device. The device can dynamically detect the anti-pinch force under different tail door opening and closing angles, and ensures the accuracy of anti-pinch force detection.

Description

Technical Field

[0001] The present invention relates to the field of anti-pinch test technology, and more specifically, to a vehicle tailgate multi-position anti-pinch force test bench. Furthermore, the present invention also relates to an anti-pinch force test system including the vehicle tailgate multi-position anti-pinch force test bench. Background Art

[0002] As demand for automobiles continues to grow, consumers are increasingly concerned about vehicle safety. Tailgate anti-pinch features are particularly important for protecting users' personal safety. However, existing tailgate anti-pinch test benches still suffer from technical deficiencies, which hinder the effectiveness of anti-pinch testing. Furthermore, test equipment needs to be reusable and portable to accommodate different vehicle tailgate configurations. Specifically, existing tailgate test benches are unable to dynamically measure anti-pinch forces at different tailgate opening and closing angles.

[0003] In summary, how to provide an anti-pinch force test bench that can dynamically detect the anti-pinch force at different tailgate opening and closing angles and accurately detect the anti-pinch force is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a vehicle tailgate multi-position anti-pinch force test bench that can dynamically detect the anti-pinch force at different tailgate opening and closing angles and ensure the accuracy of the anti-pinch force detection.

[0005] Another object of the present invention is to provide an anti-pinch force testing system including the vehicle tailgate multi-position anti-pinch force testing bench.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A vehicle tailgate multi-position anti-pinch force test bench, comprising:

[0008] a tailgate base with a curved track on one side;

[0009] A tailgate frame, one end of which is rotatably mounted on the other side of the tailgate base, the other end of which is a free end, and an impact block is provided on the outer periphery of the tailgate frame;

[0010] a first driving member disposed on the tailgate base, wherein a driving end of the first driving member is connected to one side of the tailgate frame to drive the tailgate frame to rotate around the tailgate base to simulate the opening and closing movement of an actual vehicle tailgate;

[0011] an anti-pinch arm mechanism, one end of which is rotatably disposed on the other side of the tailgate base, the rotation center of the anti-pinch arm mechanism being concentrically distributed with the rotation center of the tailgate frame, and the anti-pinch arm mechanism being sleeved on the outer periphery of the tailgate frame;

[0012] a force measuring system, which is provided at the inner edge of the anti-pinch arm mechanism, and the force measuring system and the impact block are correspondingly arranged so that the impact block vertically impacts the force measuring system;

[0013] a second driving member, which is provided on the tailgate base, wherein a driving end of the second driving member is connected to one side of the anti-pinch arm mechanism to drive the other end of the anti-pinch arm mechanism to rotate along the arc track and stop the anti-pinch arm mechanism at any position;

[0014] A control device is provided, wherein the first driving member, the force measuring system and the second driving member are all connected to the control device.

[0015] In one embodiment, a plurality of the force measuring systems are provided at intervals on the inner edge of the anti-pinch arm mechanism, and a plurality of the impact blocks are provided on the outer edge of the tailgate frame corresponding to the force measuring systems.

[0016] In one embodiment, the force measuring system includes a mounting base and a force gauge disposed on the mounting base, the mounting base is slidably disposed on a slide rail of the anti-pinch arm mechanism, and the mounting base is fixed to the slide rail via a locking member.

[0017] In one embodiment, the tailgate frame is rotatably arranged on the tailgate base via a hinge shaft, and the first driving member includes two driving motors arranged on both sides of the tailgate base and a support rod connected to the driving end of the driving motor, and the two support rods are respectively connected to the two sides of the tailgate frame to drive the tailgate frame to rotate around the hinge shaft.

[0018] In one embodiment, the anti-pinch arm mechanism is rotatably mounted on the tailgate base via a rotating shaft.

[0019] In one embodiment, the second driving member includes a self-locking worm gear reduction box, which is connected to the anti-pinch arm mechanism through an output shaft to drive one end of the anti-pinch arm mechanism to rotate around the rotating shaft, and the other end of the anti-pinch arm mechanism to move along the arc track.

[0020] In one embodiment, a handwheel is provided at the end of the self-locking worm gear reducer.

[0021] In one embodiment, a universal wheel is provided at the bottom of the tailgate base.

[0022] In one embodiment, a degree value is provided on one side of the arc track, and the anti-pinch arm mechanism is provided with an angle sensor for detecting the rotation angle of the anti-pinch arm mechanism, and the angle sensor is connected to the control device.

[0023] An anti-pinch force testing system comprises any one of the vehicle tailgate multi-position anti-pinch force testing benches described above.

[0024] When using the multi-position anti-pinch force test bench for vehicle tailgates provided by the present invention, the anti-pinch arm mechanism's rotation center is concentric with the tailgate frame's rotation center. The anti-pinch arm mechanism is sleeved onto the outer periphery of the tailgate frame. Furthermore, a force measuring system is provided on the inner edge of the anti-pinch arm mechanism, while an impact block is provided on the outer edge of the tailgate frame. The force measuring system and the impact block are arranged in a corresponding manner. Therefore, when the tailgate frame rotates to a position flush with the anti-pinch arm mechanism, the impact block strikes the force measuring system perpendicularly, ensuring that the force measuring system accurately detects the anti-pinch force and improving the accuracy of anti-pinch force detection.

[0025] During use, first, the control device can control the operation of the second driving member, and the driving end of the second driving member drives the anti-pinch arm mechanism to rotate along the arc track. In addition, the second driving member can stop the anti-pinch arm mechanism at any position, that is, the anti-pinch arm mechanism is used to move along the arc track to create anti-pinch conditions, and the anti-pinch arm mechanism can remain stationary at any position, meeting the requirements of test accuracy, and can detect the anti-pinch force under different tailgate opening and closing angles. Then, the control device controls the operation of the first driving member, and the driving end of the first driving member drives the tailgate frame to rotate around the tailgate base to simulate the opening and closing movement of the actual vehicle tailgate. When the tailgate frame rotates to a position flush with the anti-pinch arm mechanism, the impact block vertically impacts the force measuring system, and the force measuring system accurately detects the anti-pinch force, effectively improving the accuracy of the anti-pinch force detection.

[0026] In this application, the force measurement system and the tailgate frame are independent of each other. The installation position of the force measurement system can be adjusted or the corresponding sensor module can be replaced according to different test requirements. Therefore, when the project is changed, there is no need to modify the tailgate frame and anti-pinch arm mechanism, which helps to improve the reusability of the test bench, realize rapid transplantation across models and projects, shorten the test calibration cycle, improve R&D efficiency, and reduce repetitive manufacturing costs.

[0027] In summary, the vehicle tailgate multi-position anti-pinch force test bench provided by the present invention can dynamically detect the anti-pinch force at different tailgate opening and closing angles, and ensure the accuracy of the anti-pinch force detection.

[0028] In addition, the present invention also provides an anti-pinch force testing system including the above-mentioned vehicle tailgate multi-position anti-pinch force testing bench. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0030] Figure 1 This is a schematic structural diagram of the vehicle tailgate multi-position anti-pinch force test bench provided by the present invention;

[0031] Figure 2 This is a partial enlarged view of the force measurement system, hinge axis and rotating shaft;

[0032] Figure 3 for Figure 1 The main view;

[0033] Figure 4 for Figure 1 side view.

[0034] Figure 1-Figure 4 middle:

[0035] 1 is the tailgate frame, 2 is the force measuring system, 3 is the anti-pinch arm mechanism, 4 is the self-locking worm gear reducer, 5 is the tailgate base, 6 is the hinge shaft, 7 is the rotating shaft, 8 is the slide rail, 9 is the mounting base, 10 is the support rod, 11 is the dynamometer, 12 is the universal wheel, 13 is the limit baffle, 14 is the limit block, 15 is the impact block, 16 is the curved track, and 17 is the handwheel. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] The core of this invention is to provide a vehicle tailgate multi-position anti-pinch force test bench that can dynamically detect anti-pinch force at different tailgate opening and closing angles while ensuring the accuracy of anti-pinch force detection. Another core of this invention is to provide an anti-pinch force testing system that includes this vehicle tailgate multi-position anti-pinch force test bench.

[0038] Please refer to 1. Figure 3 as well as Figure 4 This specific embodiment provides a vehicle tailgate multi-position anti-pinch force test bench, comprising:

[0039] The tailgate base 5 has a curved track 16 on one side;

[0040] The tailgate frame 1 has one end rotatably mounted on the other side of the tailgate base 5, and the other end of the tailgate frame 1 is a free end. A striker 15 is provided on the outer periphery of the tailgate frame 1;

[0041] A first driving member is provided on the tailgate base 5, and a driving end of the first driving member is connected to one side of the tailgate frame 1 to drive the tailgate frame 1 to rotate around the tailgate base 5, simulating the opening and closing movement of the actual vehicle tailgate;

[0042] An anti-pinch arm mechanism 3, one end of which is rotatably mounted on the other side of the tailgate base 5. The rotation center of the anti-pinch arm mechanism 3 is concentric with the rotation center of the tailgate frame 1. The anti-pinch arm mechanism 3 is sleeved on the outer periphery of the tailgate frame 1.

[0043] The force measuring system 2 is provided at the inner edge of the anti-pinch arm mechanism 3, and the force measuring system 2 and the impact block 15 are correspondingly provided so that the impact block 15 vertically impacts the force measuring system 2;

[0044] A second driving member is provided on the tailgate base 5, and a driving end of the second driving member is connected to one side of the anti-pinch arm mechanism 3 to drive the other end of the anti-pinch arm mechanism 3 to move along the arc track 16 and stop the anti-pinch arm mechanism 3 at any position;

[0045] The control device, the first drive member, the force measuring system 2 and the second drive member are all connected to the control device.

[0046] It should be noted that the tailgate base 5 is a rectangular parallelepiped frame structure made of aluminum profiles, and two relatively distributed curved tracks 16 can be set on the left side of the tailgate base 5. The tailgate frame 1 and the anti-pinch arm mechanism 3 can both be configured as rectangular frame structures, with the right sides of the tailgate frame 1 and the anti-pinch arm mechanism 3 both rotatably mounted on the right side of the tailgate base 5. The tailgate frame 1 is used to simulate the tailgate mechanism. When the first driving member drives the tailgate frame 1 to rotate around the tailgate base 5, it can effectively simulate the opening and closing movement of an actual vehicle tailgate. The second driving member is used to drive the anti-pinch arm mechanism 3 to move along the curved track 16 and can stop the anti-pinch arm mechanism 3 at any position.

[0047] During actual use, the shape, structure, type, material, etc. of the tailgate base 5, tailgate frame 1, first drive member, anti-pinch arm mechanism 3, force measuring system 2, second drive member and control device can be determined according to actual conditions and actual needs.

[0048] When using the vehicle tailgate multi-position anti-pinch force test bench provided by the present invention, the anti-pinch arm mechanism 3 is concentrically positioned with the rotation center of the tailgate frame 1. The anti-pinch arm mechanism 3 is sleeved onto the outer periphery of the tailgate frame 1. Furthermore, a force measuring system 2 is provided on the inner edge of the anti-pinch arm mechanism 3, and a striker 15 is provided on the outer edge of the tailgate frame 1. The force measuring system 2 and striker 15 are positioned in correspondence. Therefore, when the tailgate frame 1 rotates to a position flush with the anti-pinch arm mechanism 3, the striker 15 strikes the force measuring system 2 perpendicularly, ensuring that the force measuring system 2 accurately detects the anti-pinch force and improving the accuracy of anti-pinch force detection.

[0049] During use, first, the control device can control the operation of the second driving member, and the driving end of the second driving member drives the anti-pinch arm mechanism 3 to rotate along the curved track 16. In addition, the second driving member can stop the anti-pinch arm mechanism 3 at any position, that is, the anti-pinch arm mechanism 3 is used to move along the curved track 16 to create an anti-pinch condition, and the anti-pinch arm mechanism 3 can remain stationary at any position, meeting the requirements of test accuracy, and can detect the anti-pinch force under different tailgate opening and closing angles. Then, the control device controls the operation of the first driving member, and the driving end of the first driving member drives the tailgate frame 1 to rotate around the tailgate base 5 to simulate the opening and closing movement of the actual vehicle tailgate. When the tailgate frame 1 rotates to a position flush with the anti-pinch arm mechanism 3, the impact block 15 vertically impacts the force measuring system 2, and the force measuring system 2 accurately detects the anti-pinch force, effectively improving the accuracy of the anti-pinch force detection.

[0050] In this application, the force measuring system 2 and the tailgate frame 1 are independent of each other. The installation position of the force measuring system 2 can be adjusted or the corresponding sensor module can be replaced according to different test requirements. Therefore, when the project is replaced, there is no need to modify the tailgate frame 1 and the anti-pinch arm mechanism 3, which helps to improve the reusability of the test bench, realize rapid transplantation across vehicle models and projects, shorten the test calibration cycle, improve R&D efficiency, and reduce repetitive manufacturing costs.

[0051] In summary, the vehicle tailgate multi-position anti-pinch force test bench provided by the present invention can dynamically detect the anti-pinch force at different tailgate opening and closing angles, and ensure the accuracy of the anti-pinch force detection.

[0052] In one embodiment, if Figure 1 As shown, a plurality of force measuring systems 2 are provided at intervals on the inner edge of the anti-pinch arm mechanism 3 , and a plurality of impact blocks 15 are provided on the outer edge of the tailgate frame 1 corresponding to the force measuring systems 2 to achieve multi-point force measurement operation.

[0053] In one embodiment, if Figure 2 As shown, the force measuring system 2 includes a mounting base 9 and a force gauge 11 provided on the mounting base 9. The mounting base 9 is slidably provided on the slide rail 8 of the anti-pinch arm mechanism 3, and the mounting base 9 is fixed on the slide rail 8 by a locking member.

[0054] It should be noted that a slide rail 8 can be provided on the anti-pinch arm mechanism 3, and multiple mounting bases 9 can be evenly spaced on the slide rail 8 to collect anti-pinch force thresholds at different points. When the position of the dynamometer 11 needs to be adjusted, the locking member can be loosened to allow the dynamometer 11 to move along the slide rail 8 via the mounting base 9. When the dynamometer 11 is moved to the desired position, the mounting base 9 can be secured to the slide rail 8 using the locking member. Therefore, each dynamometer 11 can be fixed at any position on the anti-pinch arm mechanism 3 according to usage requirements, ensuring continuous adjustment of the force measurement point, which facilitates dynamic detection of the tailgate anti-pinch force.

[0055] It should also be noted that since the force measuring system 2 is detachably connected to the anti-pinch arm mechanism 3 through the slide rail 8 and the mounting base 9, when the force measuring system 2 needs to be replaced, it is only necessary to loosen the locking piece to allow the mounting base 9 to continue to slide along the slide rail 8. When the mounting base 9 and the force gauge 11 are moved to the desired position, the locking piece can be used to fix the mounting base 9 to the slide rail 8 without disassembling the slide rail 8 and the tailgate base 5, thereby protecting the structural stability of the core components.

[0056] Furthermore, the force measuring system 2 includes multiple dynamometers 11, and the test position of each dynamometer 11 is adjustable. The force measuring system 2 and the anti-pinch arm mechanism 3 are independent of each other. Operators can adjust the installation positions of multiple dynamometers 11 or replace them with suitable dynamometers 11 according to different testing requirements. When changing projects, there is no need to modify the tailgate base 5 and the anti-pinch arm mechanism 3, thereby improving the reusability of the test bench, enabling rapid transplantation across vehicle models and projects, shortening the test calibration cycle, improving R&D efficiency, and reducing repetitive manufacturing costs. For example, the dynamometer 11 can cover a range of 0-500N, with a detection accuracy of ±0.01N. The detection signal of the dynamometer 11 is transmitted to the control device in real time, and the control device simultaneously records the anti-pinch force peak and response time.

[0057] In one embodiment, if Figure 1 and Figure 2 As shown, the tailgate frame 1 is rotatably mounted on the tailgate base 5 via a hinge shaft 6. The first driving component includes two driving motors disposed on both sides of the tailgate base 5 and a support rod 10 connected to the driving end of the driving motor. The two support rods 10 are respectively connected to both sides of the tailgate frame 1 to drive the tailgate frame 1 to rotate around the hinge shaft 6.

[0058] It should be noted that the right side of the tailgate frame 1 can be pivoted to the right side of the tailgate base 5 via the hinge axis 6. The left side of the tailgate frame 1 is a free end, and two struts 10 are connected to the front and rear sides of the tailgate frame 1, respectively. (The ends of the struts 10 are equipped with hinge blocks to better drive the rotation of the tailgate frame 1.) Therefore, when the control device controls the drive motor, the drive motor can drive the struts 10 to extend and retract. This movement of the struts 10 simultaneously drives the tailgate frame 1 to rotate about the hinge axis 6, ensuring that the tailgate frame 1 accurately simulates the opening and closing movement of an actual vehicle tailgate. In other words, the opening and closing movement of the tailgate frame 1 is driven by the struts 10 and the drive motor, achieving dynamic travel control.

[0059] It should also be noted that a limit baffle 13 can be vertically set at the bottom of the tailgate base 5, and a limit block 14 can be set at the bottom of the tailgate frame 1. When the tailgate frame 1 rotates to the lowest position, the limit block 14 is blocked by the limit baffle 13 to prevent the tailgate frame 1 from rotating excessively. Moreover, the limit block 14 can be set as an elastic structural member to prevent the tailgate frame 1 and the limit baffle 13 from being seriously damaged by collision.

[0060] In one embodiment, if Figure 1 and Figure 2 As shown, the anti-pinch arm mechanism 3 is rotatably mounted on the tailgate base 5 via a rotating shaft 7. The rotation center of the anti-pinch arm mechanism 3 (i.e., the rotating shaft 7) and the rotation center of the tailgate frame 1 (i.e., the hinge axis 6) are concentrically located. This ensures that the anti-pinch arm mechanism 3 remains parallel to the tailgate frame 1 at any opening or closing angle during impact. This ensures that the impact block 15 of the tailgate frame 1 can always apply a vertical clamping force to the force measuring system 2 of the anti-pinch arm mechanism 3, thereby improving the accuracy of anti-pinch force detection.

[0061] In one embodiment, the second drive member includes a self-locking worm gear reducer 4, which is connected to the anti-pinch arm mechanism 3 via an output shaft to drive one end of the anti-pinch arm mechanism 3 to rotate around the rotating shaft 7, while the other end of the anti-pinch arm mechanism 3 moves along the arc track 16. The self-locking worm gear reducer 4 can adjust and control the opening and closing angles of the anti-pinch arm mechanism 3. Therefore, when the self-locking worm gear reducer 4 is in operation, the self-locking worm gear reducer 4 drives one end of the anti-pinch arm mechanism 3 to rotate around the rotating shaft 7 via the output shaft. At the same time, the other end of the anti-pinch arm mechanism 3 moves at a uniform speed along the arc track 16, providing dynamic conditions for the anti-pinch test. Moreover, the worm gear self-locking characteristic of the self-locking worm gear reducer 4 can ensure that the anti-pinch arm mechanism 3 remains stationary at any position, meeting the test accuracy requirements.

[0062] In one embodiment, a handwheel 17 is provided at the end of the self-locking worm gear reducer 4. Manually rotating handwheel 17 of the self-locking worm gear reducer 4 drives the anti-pinch arm mechanism 3 to move at a constant speed along the opening and closing trajectory of the tailgate frame 1 (i.e., the curved track 16), providing dynamic conditions for anti-pinch testing. Furthermore, the self-locking worm gear reducer 4 incorporates a built-in self-locking structure to ensure that the anti-pinch arm mechanism 3 remains stable at any angle along the curved track 16, preventing the anti-pinch arm mechanism 3 from sliding down under gravity after moving to a certain point on the curved track 16. This ensures coverage of the anti-pinch force test at various tailgate opening and closing angles.

[0063] It should be noted that the self-locking worm gear reducer 4 is a common mechanical transmission device that achieves speed reduction and self-locking functions through the unique structure of a worm wheel and worm. The main components of the self-locking worm gear reducer 4 are as follows: the worm wheel and worm, bearings, housing, and lubrication system. The worm wheel and worm are the core components of the self-locking worm gear reducer 4. The worm wheel is typically a disk with helical teeth, while the worm is similar to a cylindrical thread. When the worm rotates, it meshes with the helical teeth of the worm wheel, transmitting motion to the worm wheel, thereby achieving a speed reduction effect. Due to the unique geometry of the worm wheel and worm, this transmission has a self-locking characteristic, meaning that it is difficult for the worm wheel to actively drive the worm to rotate without external force. Bearings are used to support the worm wheel and worm, reducing friction during their rotation and ensuring smooth and efficient transmission. Therefore, the quality of the bearings directly affects the performance and lifespan of the self-locking worm gear reducer 4.

[0064] The housing is the external structure of the self-locking worm gear reducer 4. It not only protects the internal transmission components of the self-locking worm gear reducer 4, but also serves to fix and support the entire device. The design of the housing needs to take into account factors such as heat dissipation, sealing, and installation. The lubrication system is essential for the normal operation of the self-locking worm gear reducer 4. In addition, proper lubrication can reduce the friction between the worm wheel and the worm, extend the service life, and help maintain the self-locking performance. When the lubrication system is insufficiently lubricated, it may cause the self-locking performance of the self-locking worm gear reducer 4 to deteriorate, or even cause the self-locking worm gear reducer 4 to fail.

[0065] Therefore, due to the self-locking characteristics of the self-locking worm gear reducer 4, once the transmission interface suffers a power outage or mechanical failure, the self-locking worm gear reducer 4 will self-lock, effectively preventing reversal caused by unexpected external interference. Moreover, the self-locking characteristics of the self-locking worm gear reducer 4 ensure the safety and reliability of the mechanical transmission. In the event of a failure, the transmission is immediately stopped, effectively avoiding damage to components such as the motor due to mechanical damage. Furthermore, due to the self-locking characteristics of the self-locking worm gear reducer 4, the position of the output end can be kept stable, and no external fixing device is required to prevent self-rotation, which effectively saves additional energy consumption and improves the energy efficiency of the entire system.

[0066] In one embodiment, if Figure 1 As shown, a universal wheel 12 is provided at the bottom of the tailgate base 5, and the universal wheel 12 has a locking function to achieve the overall movement and positioning of the tailgate base 5. The universal wheel 12 can be installed at the bottom of the tailgate base 5 by bolts.

[0067] In one embodiment, if Figure 1 As shown, a degree value is provided on one side of the curved track 16, and the anti-pinch arm mechanism 3 is provided with an angle sensor for detecting the rotation angle of the anti-pinch arm mechanism 3. The angle sensor is connected to the control device. Therefore, when the anti-pinch arm mechanism 3 moves along the curved track 16 under the action of the self-locking worm gear reducer 4, the angle sensor can transmit the current angular position of the anti-pinch arm mechanism 3 in real time, so that the control device can obtain angle data and anti-pinch force data.

[0068] It should also be noted that the tailgate frame 1 is used to simulate the movement trajectory of the tailgate of an actual vehicle, adjust the opening and closing angles of the anti-pinch arm mechanism 3 through the self-locking worm gear reducer 4, and control the anti-pinch arm mechanism 3 to be locked in the desired position. The force measuring system 2 provided on the anti-pinch arm mechanism 3 includes a plurality of mounting bases 9 slidingly arranged on the slide rail 8 and a dynamometer 11 provided on the mounting base 9. The dynamometer 11 is vertically impacted by the impact block 15 to achieve dynamic detection of the anti-pinch force of the tailgate. This application introduces multi-angle (the fixed angle of the anti-pinch arm mechanism 3 on the curved track 16 is adjustable) dynamic detection and multi-point (the anti-pinch arm mechanism 3 is provided with multiple dynamometers 11, and the position of the dynamometer 11 is adjustable) synchronous monitoring technology to achieve accurate anti-pinch force testing of the entire travel and edge area of ​​the tailgate, thereby improving the comprehensiveness and reliability of the test and effectively solving the problem of insufficient coverage of traditional testing methods. Based on the modular structure design of each component, the testing requirements of different projects can be met by quickly replacing the dynamometer 11 or adjusting the position layout of the dynamometer 11, thereby significantly improving the equipment reuse rate, shortening the installation time, and effectively reducing the hardware modification cost.

[0069] In addition to the above-mentioned vehicle tailgate multi-position anti-pinch force test bench, the present invention also provides an anti-pinch force testing system including the vehicle tailgate multi-position anti-pinch force test bench disclosed in the above-mentioned embodiment. For the structures of other parts of the anti-pinch force testing system, please refer to the prior art and will not be repeated herein.

[0070] It should be noted that the first driving member and the second driving member mentioned in this application document are only used to distinguish the difference in position and there is no order of precedence.

[0071] In addition, it should be noted that the orientations or positional relationships indicated by "inside and outside" in this application are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of simplifying the description and facilitating understanding, 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 the present invention.

[0072] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. Any combination of all the embodiments provided by the present invention is within the scope of protection of this invention and will not be described in detail here.

[0073] The above is a detailed introduction to the anti-pinch force test system and the vehicle tailgate multi-position anti-pinch force test bench provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A vehicle tailgate multi-position anti-pinch force test bench, characterized in that: include: A tailgate base (5) having a curved track (16) provided on one side thereof; A tailgate frame (1), one end of which is rotatably arranged on the other side of the tailgate base (5), the other end of the tailgate frame (1) being a free end, and an impact block (15) being provided on the outer periphery of the tailgate frame (1); a first driving member, which is provided on the tailgate base (5), wherein a driving end of the first driving member is connected to one side of the tailgate frame (1) to drive the tailgate frame (1) to rotate around the tailgate base (5) to simulate the opening and closing movement of an actual vehicle tailgate; An anti-pinch arm mechanism (3), one end of which is rotatably arranged on the other side of the tailgate base (5), the rotation center of the anti-pinch arm mechanism (3) and the rotation center of the tailgate frame (1) are concentrically distributed, and the anti-pinch arm mechanism (3) is sleeved on the outer periphery of the tailgate frame (1); A force measuring system (2) is provided at the inner edge of the anti-pinch arm mechanism (3), and the force measuring system (2) and the impact block (15) are correspondingly provided so that the impact block (15) vertically impacts the force measuring system (2); a second driving member, which is provided on the tailgate base (5), wherein a driving end of the second driving member is connected to one side of the anti-pinch arm mechanism (3) to drive the other end of the anti-pinch arm mechanism (3) to rotate along the arc track (16) and to stop the anti-pinch arm mechanism (3) at any position; A control device, wherein the first drive member, the force measuring system (2) and the second drive member are all connected to the control device.

2. The vehicle tailgate multi-position anti-pinch force test bench according to claim 1, characterized in that: The inner edge of the anti-pinch arm mechanism (3) is provided with a plurality of the force measuring systems (2) at intervals, and the outer edge of the tailgate frame (1) is provided with a plurality of the impact blocks (15) corresponding to the force measuring systems (2).

3. The vehicle tailgate multi-position anti-pinch force test bench according to claim 2, characterized in that: The force measuring system (2) comprises a mounting base (9) and a force gauge (11) arranged on the mounting base (9); the mounting base (9) is slidably arranged on a slide rail (8) of the anti-clamping arm mechanism (3), and the mounting base (9) is fixed to the slide rail (8) via a locking member.

4. The vehicle tailgate multi-position anti-pinch force test bench according to any one of claims 1 to 3, characterized in that: The tailgate frame (1) is rotatably mounted on the tailgate base (5) via a hinge shaft (6). The first driving member comprises two driving motors disposed on both sides of the tailgate base (5) and a support rod (10) connected to the driving end of the driving motor. The two support rods (10) are respectively connected to both sides of the tailgate frame (1) to drive the tailgate frame (1) to rotate around the hinge shaft (6).

5. The vehicle tailgate multi-position anti-pinch force test bench according to any one of claims 1 to 3, characterized in that: The anti-pinch arm mechanism (3) is rotatably arranged on the tailgate base (5) via a rotating shaft (7).

6. The vehicle tailgate multi-position anti-pinch force test bench according to claim 5, characterized in that: The second driving member includes a self-locking worm gear reduction box (4), which is connected to the anti-pinch arm mechanism (3) via an output shaft to drive one end of the anti-pinch arm mechanism (3) to rotate around the rotating shaft (7), and the other end of the anti-pinch arm mechanism (3) to move along the arc track (16).

7. The vehicle tailgate multi-position anti-pinch force test bench according to claim 6, characterized in that: A handwheel (17) is provided at the end of the self-locking worm gear reduction box (4).

8. The vehicle tailgate multi-position anti-pinch force test bench according to any one of claims 1 to 3, characterized in that: The bottom of the tailgate base (5) is provided with a universal wheel (12).

9. The vehicle tailgate multi-position anti-pinch force test bench according to any one of claims 1 to 3, characterized in that: A degree value is provided on one side of the arc-shaped track (16), and the anti-pinch arm mechanism (3) is provided with an angle sensor for detecting the rotation angle of the anti-pinch arm mechanism (3), and the angle sensor is connected to the control device. 10.An anti-pinch force testing system, characterized in that: The vehicle tailgate multi-position anti-pinch force test bench comprises the vehicle tailgate multi-position anti-pinch force test bench according to any one of claims 1 to 9.

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