Tool for vehicle door strength test

Abstract

The utility model discloses a tool for a vehicle door strength test, which comprises a test assembly, the test assembly comprises a mounting plate, a hydraulic telescopic cylinder, a pull pressure gauge, sleeves and a force application rod, the hydraulic telescopic cylinder is fixed on the upper surface of the mounting plate, the pull pressure gauge is fixed at the output end of one side of the hydraulic telescopic cylinder, the sleeves are fixed on two sides of the hydraulic telescopic cylinder, and the force application rod is fixed on the mounting plate. The force application rods are fixed to the two sides of the hydraulic telescopic cylinder and penetrate through the interiors of the corresponding sleeves, the force application rod on one side is fixedly connected to one side of the pull pressure gauge, a bottom plate is fixed to the lower surface of the mounting plate, a lifting table is fixed to the lower surface of the bottom plate, and a rubber block is fixed to one end of each force application rod and makes contact with the automobile door. A supporting ring is fixed to one side of the sleeve, and the lower end of the supporting ring is fixed to the upper surface of the mounting plate. The device has the advantages that the testing process is more efficient due to automatic control, the manual operation time is shortened, the labor intensity is reduced, and the testing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing technology, and in particular to tooling for testing the strength of car doors. Background Technology

[0002] The door strength testing fixture is a specialized device used to evaluate and test the strength and durability of a vehicle side door when subjected to external force.

[0003] Existing door strength testing devices typically require manual pressure application during testing, necessitating sufficient operating space. Furthermore, the required pressure is substantial, making it time-consuming, labor-intensive, and posing safety hazards. Secondly, since the widths of vehicles tested vary, existing testing devices are insufficient for all widths, often necessitating the preparation of multiple sets to accommodate different vehicle widths, resulting in resource waste. Thirdly, the placement of the device on the door is critical, requiring measurements from multiple directions for confirmation, which is time-consuming and inefficient. Therefore, a door testing device that is applicable to vehicles of varying widths and offers high safety performance is needed to improve testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for testing the strength of car doors, addressing the issues raised in the background section. Existing car door strength testing devices typically require manual pressure application to the door, necessitating sufficient operating space. Furthermore, the required pressure is substantial, making the process time-consuming, labor-intensive, and posing safety hazards. Secondly, existing testing devices are ill-suited for all vehicle widths due to varying vehicle widths, often necessitating the preparation of multiple sets to accommodate different widths, leading to resource waste. Thirdly, the placement of the device on the door is critical, requiring measurements from multiple directions for confirmation, resulting in time-consuming and inefficient testing.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a tooling for testing the strength of car doors, comprising:

[0007] The test assembly includes a mounting plate, a hydraulic telescopic cylinder, a tension / compression gauge, a sleeve, and a force-applying rod. The hydraulic telescopic cylinder is fixed to the upper surface of the mounting plate, the tension / compression gauge is fixed to one output end of the hydraulic telescopic cylinder, the sleeve is fixed to both sides of the hydraulic telescopic cylinder, and the force-applying rod is fixed to both sides of the hydraulic telescopic cylinder.

[0008] Furthermore, the two force-applying rods pass through the corresponding sleeves, and one of the force-applying rods is fixedly connected to one side of the tension / compression gauge.

[0009] Furthermore, a base plate is fixed to the lower surface of the mounting plate, and a lifting platform is fixed to the lower surface of the base plate.

[0010] Furthermore, a rubber block is fixed to one end of the force-applying rod, and the rubber block is in contact with the car door. A support ring is fixed to one side of the sleeve, and the lower end of the support ring is fixed to the upper surface of the mounting plate.

[0011] Furthermore, it also includes a measuring component, which includes a fixed frame, a circular hole, a threaded rod, and clamping blocks. The fixed frame extends through the outside of the force-applying rod, the circular hole is opened at the center of the upper and lower sides of the fixed frame, two threaded rods are threaded through the corresponding circular holes, and two clamping blocks are fixed to one end of the corresponding threaded rod, and the clamping blocks are in contact with the outer surface of the force-applying rod.

[0012] Furthermore, a first measuring ruler is fixed on all four sides of the fixed frame, and a telescopic groove is provided on one side of the first measuring ruler, with a second measuring ruler slidably installed inside the telescopic groove.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] I. This utility model, through its set test components, allows for the following process during testing: First, the operator places the test device inside the vehicle, centered on both side doors. Then, the height of the lifting platform is adjusted so that the force-applying rods on both sides are centered on the doors. Next, the operator simply activates the hydraulic telescopic cylinder via an external controller. The hydraulic telescopic cylinder drives the force-applying rods at both ends to push to both sides until the tension gauge displays a 2000N thrust applied to the door. If the door does not experience structural failure or excessive deformation, the doors are considered to have passed the test. Automated control makes the testing process more efficient, reduces manual operation time and labor intensity, improves testing efficiency, and enhances testing safety.

[0015] Second, based on the first beneficial effect, the measuring components ensure that the force-applying rod is centered on the car door during the installation of the testing device. During installation, the operator simply rotates the threaded rod to bring the clamping block into contact with the force-applying rod, fixing the fixing frame to one side of the force-applying rod. Then, the operator moves the second measuring scale from inside the telescopic groove, causing the lengths of the first and second measuring scales to extend and retract. This allows for quick measurement of whether the force-applying rod is centered on the car door. Ensuring the force-applying rod is centered guarantees that the force is applied evenly to the car door, avoiding localized stress concentration and thus improving the accuracy and reliability of the test. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view schematic diagram of the experimental components of this utility model;

[0018] Figure 2 This is a second-view schematic diagram of the experimental components of this utility model;

[0019] Figure 3 This is an exploded view of the measuring component of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 11. Lifting platform; 12. Base plate; 13. Mounting plate; 14. Hydraulic telescopic cylinder; 15. Tension / compression gauge; 16. Sleeve; 17. Force rod; 18. Rubber block; 19. Support ring;

[0022] 21. Fixed frame; 22. Circular hole; 23. Threaded rod; 24. Clamping block; 25. First measuring ruler; 251. Telescopic groove; 26. Second measuring ruler. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Please see Figures 1 to 3 As shown, this embodiment is a tooling for testing the strength of a car door, including:

[0028] The test assembly includes a mounting plate 13, a hydraulic telescopic cylinder 14, a tension / compression gauge 15, a sleeve 16, and a force rod 17. The hydraulic telescopic cylinder 14 is fixed on the upper surface of the mounting plate 13, the tension / compression gauge 15 is fixed on one output end of the hydraulic telescopic cylinder 14, the sleeve 16 is fixed on both sides of the hydraulic telescopic cylinder 14, and the force rod 17 is fixed on both sides of the hydraulic telescopic cylinder 14.

[0029] Mounting plate 13 serves as the main support structure for fixing and supporting other test components. Hydraulic telescopic cylinder 14 is powered by a hydraulic system to achieve the telescopic movement of force bar 17. Tension gauge 15 is a measuring tool used to monitor and record the force applied to the door in real time.

[0030] Two force-applying rods 17 pass through the corresponding sleeves 16, and one force-applying rod 17 is fixedly connected to one side of the tension gauge 15. A base plate 12 is fixed to the lower surface of the mounting plate 13, and a lifting platform 11 is fixed to the lower surface of the base plate 12. A rubber block 18 is fixed to one end of the force-applying rod 17, and the rubber block 18 contacts the car door. A support ring 19 is fixed to one side of the sleeve 16, and the lower end of the support ring 19 is fixed to the upper surface of the mounting plate 13.

[0031] The mounting plate 13 has support rings 19 on both sides, which can effectively ensure that the sleeve 16 always remains horizontal. The force rod 17 is telescopic, and the end of the force rod 17 is a circular rubber block 18. The rubber block 18 has a buffer pad on the contact surface with the car door. The lifting platform 11 is a component for adjusting the height of the test assembly so that the force rod 17 can be accurately aligned with the center of the car door.

[0032] Working principle:

[0033] During the test, the staff first placed the test device inside the vehicle and positioned it in the center of both doors. Then, the height of the lifting platform 11 was adjusted so that the force rods 17 on both sides were in the center of the doors. Then, the staff only needed to activate the hydraulic telescopic cylinder 14 through the external controller. The hydraulic telescopic cylinder 14 drove the force rods 17 at both ends to push to both sides until the tension gauge 15 showed that a thrust of 2000N was applied to the door. If the door did not suffer structural failure or excessive deformation, the two doors were considered to have passed the test.

[0034] This step, through automated control, makes the testing process more efficient, reduces the time and labor intensity of manual operation, and improves testing efficiency.

[0035] Please see Figures 1 to 3 As shown; this embodiment, based on the above embodiment, further includes:

[0036] The measuring component includes a fixed frame 21, a circular hole 22, a threaded rod 23, and a clamping block 24. The fixed frame 21 passes through the outside of the force-applying rod 17. The circular hole 22 is opened at the center of the upper and lower sides of the fixed frame 21. Two threaded rods 23 are threaded through the corresponding circular holes 22. Two clamping blocks 24 are fixed to one end of the corresponding threaded rod 23 and are in contact with the outer surface of the force-applying rod 17. A first measuring ruler 25 is fixed on the four sides of the fixed frame 21. A telescopic groove 251 is opened on one side of the first measuring ruler 25. A second measuring ruler 26 is slidably installed inside the telescopic groove 251.

[0037] The fixed frame 21 is a structural frame used to stabilize and position the force-applying rod 17 and related measuring tools. Circular holes 22 are opened at the center of the upper and lower sides of the fixed frame 21 to accommodate the threaded rod 23. The circular holes 22 enable the threaded rod 23 to be accurately positioned and the clamping block 24 to be fixed. The second measuring ruler 26 is slidably installed inside the telescopic groove 251 and is used in conjunction with the first measuring ruler 25 to determine whether the force-applying rod 17 is located at the center of the door.

[0038] Working principle:

[0039] When installing the test device, it is necessary to ensure that the force-applying rod 17 is located in the center of the car door. During installation, the operator only needs to rotate the threaded rod 23 to make the clamping block 24 contact the force-applying rod 17 and fix the fixing frame 21 on one side of the force-applying rod 17. Then, the operator moves the second measuring ruler 26 from inside the telescopic groove 251 to extend and retract the length of the first measuring ruler 25 and the second measuring ruler 26, which can quickly measure whether the position of the force-applying rod 17 is in the center of the car door.

[0040] This step ensures that the force bar 17 is located in the center of the door, which guarantees that the force is applied evenly to the door, avoids local stress concentration, and thus improves the accuracy and reliability of the test.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tooling for testing the strength of a car door, characterized in that, include: The test assembly includes a mounting plate (13), a hydraulic telescopic cylinder (14), a tension / compression gauge (15), a sleeve (16), and a force rod (17). The hydraulic telescopic cylinder (14) is fixed on the upper surface of the mounting plate (13), the tension / compression gauge (15) is fixed on one output end of the hydraulic telescopic cylinder (14), the sleeve (16) is fixed on both sides of the hydraulic telescopic cylinder (14), and the force rod (17) is fixed on both sides of the hydraulic telescopic cylinder (14).

2. The tooling for testing the strength of a car door according to claim 1, characterized in that, The two force-applying rods (17) pass through the corresponding sleeves (16), and one of the force-applying rods (17) is fixedly connected to one side of the tension gauge (15).

3. The tooling for testing the strength of a car door according to claim 1, characterized in that, The mounting plate (13) has a base plate (12) fixed to its lower surface, and a lifting platform (11) is fixed to the lower surface of the base plate (12).

4. The tooling for testing the strength of a car door according to claim 1, characterized in that, One end of the force-applying rod (17) is fixed with a rubber block (18), and the rubber block (18) is in contact with the car door. A support ring (19) is fixed on one side of the sleeve (16), and the lower end of the support ring (19) is fixed on the upper surface of the mounting plate (13).

5. The tooling for testing the strength of a car door according to claim 4, characterized in that, It also includes a measuring component, which includes a fixed frame (21), a circular hole (22), a threaded rod (23), and a clamping block (24). The fixed frame (21) passes through the outside of the force-applying rod (17). The circular hole (22) is opened at the center of the upper and lower sides of the fixed frame (21). The two threaded rods (23) are threaded through the corresponding circular holes (22). The two clamping blocks (24) are fixed to one end of the corresponding threaded rod (23), and the clamping blocks (24) are in contact with the outer surface of the force-applying rod (17).

6. The tooling for testing the strength of a car door according to claim 5, characterized in that, The four sides of the fixed frame (21) are fixed with a first measuring ruler (25), and a telescopic groove (251) is provided on one side of the first measuring ruler (25). A second measuring ruler (26) is slidably installed inside the telescopic groove (251).

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