Automobile wire harness tensile detection device with adjusting mechanism

By introducing a chuck and gripper structure into the automotive wiring harness tensile strength testing device, the problem of cable size and connector differences has been solved, achieving adaptation to wiring harnesses of different thicknesses and improving testing results.

CN224176253UActive Publication Date: 2026-04-28HUBEI JUNDE ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI JUNDE ELECTRONICS CO LTD
Filing Date
2025-04-08
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing automotive wiring harness tensile strength testing devices lack adjustment components, resulting in significant differences in cable size and connectors, making them unsuitable for wiring harnesses of different thicknesses and affecting testing results.

Method used

A tensile strength testing device for automotive wiring harnesses with an adjustment mechanism was designed, including a chuck, a locking button, and a gripper structure. The chuck has openings of different sizes, the locking button is used to fix the wiring harness, the gripper achieves clamping and stretching through a linkage structure, a servo motor precisely controls the stretching force, and a display screen is equipped to display data in real time.

Benefits of technology

It enables adaptation to wire harnesses of different thicknesses, improves the versatility of the testing device and the accuracy of testing, and ensures the stability and reliability of the testing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile wire harness tensile detection device with an adjusting mechanism, and relates to the technical field of automobile wire harness tensile detection devices, the automobile wire harness tensile detection device comprises a detection bench, a display screen, a locking button, a chuck and a second clamping jaw, the side surface of the detection bench is provided with the display screen, and the bottom of the detection bench is provided with a gasket. A guide plate is arranged above the detection table, a locking button, a spring and a positioning plate are installed on the side face of the guide plate, a chuck is installed on the side face of the locking button, a guide groove, a lead screw and a motor are arranged above the guide plate, a traction block is installed above the lead screw, and a first connecting rod is installed on the side face of the traction block. A second connecting rod, a third connecting rod, a first clamping jaw and a second clamping jaw are arranged on the side face of the first connecting rod, a fixing block is arranged below the second clamping jaw, openings of different sizes are formed in the chuck, and a locking button is designed, so that the automobile wire harness detection device can be conveniently and rapidly adapted to automobile wire harnesses of various thicknesses, and the universality of the detection device is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of automotive wiring harness tensile strength testing devices, specifically an automotive wiring harness tensile strength testing device with an adjustment mechanism. Background Technology

[0002] An automotive wiring harness tensile strength testing device is used to test the tensile strength of automotive wiring harnesses. It is primarily used in automotive manufacturing and wiring harness production to ensure that automotive wiring harnesses can withstand certain tensile forces during use without damage or performance degradation. However, existing automotive wiring harness tensile strength testing devices have some shortcomings, such as:

[0003] The cable tensile strength testing device described in application number CN202323223327.9 has the following drawbacks: because the device does not have an adjustment component and instead fixes the cable by clamping, the cable size and the connector are too different, making it impossible to clamp and use. Utility Model Content

[0004] The purpose of this utility model is to provide an automotive wiring harness tensile strength testing device with an adjustment mechanism, in order to solve the problem mentioned in the background art that the existing market devices, which fix the cable by clamping instead of setting adjustment components, result in the cable size being too different from the connector, making it impossible to clamp and use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tensile strength testing device for automotive wiring harnesses with an adjustment mechanism, comprising a testing platform, a display screen, a locking button, a chuck, and a second gripper;

[0006] A display screen is provided on the side of the testing platform, and a pad is provided at the bottom of the testing platform;

[0007] A guide plate is provided above the testing platform. A locking button, a spring, and a positioning plate are installed on the side of the guide plate. A chuck is installed on the side of the locking button. A guide groove, a lead screw, and a motor are provided above the guide plate. A traction block is installed above the lead screw. A first connecting rod is installed on the side of the traction block. A second connecting rod, a third connecting rod, a first gripper, and a second gripper are provided on the side of the first connecting rod. A fixing block is provided below the second gripper.

[0008] As a preferred technical solution of this utility model, the display screen is fixedly connected to the side surface of the testing platform, the gasket is fixedly connected to the lower surface of the testing platform, and there are four gaskets arranged in a rectangular shape.

[0009] Using the above technical solution, a display screen is provided on the side of the testing platform to display the testing data in real time. The bottom of the testing platform is provided with four pads arranged in a rectangular shape to stabilize and support the testing platform and reduce vibration interference during the testing process.

[0010] As a preferred technical solution of this utility model, the guide plate is fixedly connected to the upper surface of the testing platform. The guide plate has an oval structure, and a pair of guide grooves are opened on the upper surface of the guide plate. A square through groove is opened at the center line of the guide groove. The lead screw is rotatably connected to the center line of the guide plate. The motor is fixedly connected to the right side of the lead screw. The motor is embedded and fixed inside the guide plate.

[0011] Using the above technical solution, a guide plate is installed above the testing platform. The guide plate has an oval structure and is fixedly connected to the upper surface of the testing platform. A pair of guide grooves are opened on the upper surface of the guide plate, and a square through groove is opened at the center line of the guide grooves. A lead screw is rotatably connected to the center line of the guide plate, and a motor is fixedly connected to the right side of the lead screw and embedded in the inner side of the guide plate. The motor drives the lead screw to rotate, providing power for the testing.

[0012] As a preferred embodiment of this utility model, the traction block is fitted onto the outer ring of the lead screw, and the traction block is slidably connected to the guide plate;

[0013] By adopting the above technical solution, the equipment is slidably connected to the guide plate through the traction block. The guide plate can play an effective guiding role and ensure the accuracy of equipment traction.

[0014] As a preferred technical solution of this utility model, a traction block is rotatably connected below the first connecting rod, and a second connecting rod and a third connecting rod are arranged parallel to each other on the side of the first connecting rod. A first gripper and a second gripper are rotatably connected below the second connecting rod and the third connecting rod, and a fixing block is rotatably connected to one end of the second connecting rod and the third connecting rod.

[0015] Using the above technical solution, the second and third links are arranged parallel to each other on the side of the first link. The first and second grippers are rotatably connected below the second and third links, and one end of each is rotatably connected to a fixing block. A fixing block is provided below the second gripper, and the fixing block is slidably connected to the guide groove. When the traction block moves, the first and second grippers open and close through the link structure, realizing the clamping and stretching action of the wire harness.

[0016] As a preferred embodiment of this utility model, the fixing block is slidably connected to the guide groove;

[0017] The chuck is rotatably connected to the upper surface of the guide plate, and eight sets of openings of different sizes are opened on the top of the chuck. The locking button is slidably connected to the side of the chuck, and a fixing block is fixedly connected below the locking button. The spring is fixedly connected to the positioning plate below, and the positioning plate is fixedly connected to the guide plate.

[0018] Using the above technical solution, a locking button, a spring, and a positioning plate are installed on the side of the guide plate. A chuck is installed on the side of the locking button, and the chuck is rotatably connected to the upper surface of the guide plate. Eight sets of openings of different sizes are opened on the top of the chuck, allowing for selection of appropriate openings for fixing according to the thickness of the automotive wiring harness. The locking button is slidably connected to the side of the chuck, and a fixing block is fixedly connected below it. The spring is fixedly connected to the positioning plate below it, and the positioning plate is fixedly connected to the guide plate to ensure the stability of the chuck position.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The design of different sized openings and locking buttons on the chuck allows for convenient and quick adaptation to automotive wiring harnesses of various thicknesses, improving the versatility of the testing device;

[0021] 2. The servo motor precisely controls the tensile force, and the display screen shows the detection data in real time, which improves the accuracy and reliability of the detection.

[0022] 3. The anti-slip rubber pads on the grippers effectively prevent the wire harness from slipping during testing, ensuring the stability of the testing process. Attached Figure Description

[0023] Figure 1 This is a side view of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the testing platform and display screen of this utility model;

[0025] Figure 3 This is a schematic diagram of the traction block and motor structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the locking button and chuck structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the fixing block and the traction block of this utility model;

[0028] Figure 6 This is a schematic diagram of the first and second grippers of this utility model.

[0029] In the diagram: 1. Testing table; 2. Display screen; 3. Locking button; 4. Chuck; 5. Guide groove; 6. Lead screw; 7. Guide plate; 8. Gasket; 9. Fixing block; 10. Traction block; 11. Motor; 12. Positioning plate; 13. First connecting rod; 14. Second connecting rod; 15. Third connecting rod; 16. First gripper; 17. Second gripper; 18. Spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1 - Figure 6 The present invention provides a tensile strength testing device for automotive wiring harnesses with an adjustment mechanism, comprising a testing platform 1, a display screen 2, a locking button 3, a chuck 4, a guide groove 5, a lead screw 6, a guide plate 7, a gasket 8, a fixing block 9, a traction block 10, a motor 11, a positioning plate 12, a first connecting rod 13, a second connecting rod 14, a third connecting rod 15, a first gripper 16, a second gripper 17, and a spring 18.

[0032] A display screen 2 is installed on the side of the testing table 1, and a pad 8 is installed at the bottom of the testing table 1;

[0033] A guide plate 7 is provided above the testing table 1. The guide plate 7 has an oval structure and is fixedly connected to the upper surface of the testing table 1. A locking button 3, a spring 18 and a positioning plate 12 are installed on the side of the guide plate 7. A display screen 2 is fixedly connected to the side surface of the testing table 1 for real-time display of testing data. Four rectangular pads 8 are fixedly connected to the lower surface of the testing table 1 to stably support the testing table 1 and reduce vibration interference during the testing process.

[0034] The upper surface of the guide plate 7 is provided with a chuck 4, which is rotatably connected to the guide plate 7. Eight sets of openings of different sizes are opened on its upper surface to facilitate the selection of appropriate openings for fixing according to the thickness of the automotive wiring harness. The locking button 3 is slidably connected to the side of the chuck 4 and is fixedly connected to the fixing block 9 below it. The fixing block 9 is fixedly connected to the positioning plate 12, and the positioning plate 12 is fixed to the guide plate 7, thereby ensuring the stability of the chuck 4 position.

[0035] A pair of guide grooves 5 are provided on the upper surface of the guide plate 7. A square through groove is opened at the center line of the guide grooves 5. The lead screw 6 is rotatably connected at the center line of the guide plate 7. The motor 11 is fixed on the right side of the lead screw 6 and embedded in the inner side of the guide plate 7. The motor 11 drives the lead screw 6 to rotate, providing power for detection. A traction block 10 is mounted on the lead screw 6. The traction block 10 is slidably connected to the guide plate 7. The guide plate 7 is used to effectively guide the equipment and ensure the traction accuracy.

[0036] The first connecting rod 13 is rotatably connected to the lower side of the traction block 10. The second connecting rod 14 and the third connecting rod 15 are arranged parallel to each other on the side of the first connecting rod 13. One end of the second connecting rod 14 and the third connecting rod 15 is rotatably connected to the fixed block 9, and the other end is rotatably connected to the first clamp 16 and the second clamp 17 respectively. The fixed block 9 below the second clamp 17 is slidably connected to the guide groove 5. When the traction block 10 moves, the first clamp 16 and the second clamp 17 are driven to open and close through the connecting rod structure, so as to realize the clamping and stretching action of the wire harness.

[0037] Working principle: When using an automotive wiring harness tensile testing device with an adjustment mechanism, first press the locking button 3. According to the thickness of the automotive wiring harness, rotate the chuck 4 to select an opening of appropriate size. Pass one end of the wiring harness through the opening and fix it on the chuck 4. Then, place the other end of the wiring harness between the first jaw 16 and the second jaw 17. Start the motor 11. The motor 11 drives the lead screw 6 to rotate. The traction block 10 on the lead screw 6 begins to move along the guide groove 5 on the guide plate 7. During the movement of the traction block 10, the first connecting rod 13 drives the second connecting rod 14 and the third connecting rod 15 to move, thereby causing the first jaw 16 and the second jaw 17 to gradually clamp the wiring harness. As the traction block 10 continues to move, the wiring harness is stretched. The display screen 2 displays the tensile force data and other information during the stretching process in real time. When the wiring harness is broken or reaches the required stretching degree, stop the motor 11, record the data on the display screen 2, and complete the test.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tensile strength testing device for automotive wiring harnesses with an adjustment mechanism, comprising a testing table (1); The testing platform (1) is provided with a display screen (2) on its side and a pad (8) is provided at the bottom of the testing platform (1); Its features are: A guide plate (7) is provided above the testing table (1). A locking button (3), a spring (18) and a positioning plate (12) are installed on the side of the guide plate (7). A chuck (4) is installed on the side of the locking button (3). A guide groove (5), a lead screw (6) and a motor (11) are provided above the guide plate (7). A traction block (10) is installed above the lead screw (6). A first connecting rod (13) is installed on the side of the traction block (10). A second connecting rod (14), a third connecting rod (15), a first gripper (16) and a second gripper (17) are provided on the side of the first connecting rod (13). A fixing block (9) is provided below the second gripper (17).

2. The automotive wiring harness tensile strength testing device with an adjustment mechanism according to claim 1, characterized in that, The display screen (2) is fixedly connected to the side surface of the testing platform (1), and the gasket (8) is fixedly connected to the lower surface of the testing platform (1), and there are four gaskets (8) arranged in a rectangular shape.

3. The automotive wiring harness tensile strength testing device with an adjustment mechanism according to claim 1, characterized in that, The guide plate (7) is fixedly connected to the upper surface of the testing table (1). The guide plate (7) has an oval structure and a pair of guide grooves (5) are opened on the upper surface of the guide plate (7). A square through groove is opened at the center line of the guide groove (5). The lead screw (6) is rotatably connected to the center line of the guide plate (7). The motor (11) is fixedly connected to the right side of the lead screw (6). The motor (11) is embedded and fixed inside the guide plate (7).

4. The automotive wiring harness tensile strength testing device with an adjustment mechanism according to claim 1, characterized in that, The traction block (10) is fitted on the outer ring of the lead screw (6), and the traction block (10) is slidably connected to the guide plate (7).

5. The automotive wiring harness tensile strength testing device with an adjustment mechanism according to claim 1, characterized in that, The first link (13) is rotatably connected to the traction block (10) below. The second link (14) and the third link (15) are arranged parallel to each other on the side of the first link (13). The first gripper (16) and the second gripper (17) are rotatably connected below the second link (14) and the third link (15). One end of the second link (14) and the third link (15) is rotatably connected to the fixing block (9).

6. The automotive wiring harness tensile strength testing device with an adjustment mechanism according to claim 1, characterized in that, The fixing block (9) is slidably connected to the guide groove (5).

7. The automotive wiring harness tensile strength testing device with an adjustment mechanism according to claim 1, characterized in that, The chuck (4) is rotatably connected to the upper surface of the guide plate (7), and eight sets of openings of different sizes are opened on the upper surface of the chuck (4). The locking button (3) is slidably connected to the side of the chuck (4). A spring (18) is fixedly connected below the locking button (3). The spring (18) is fixedly connected to the positioning plate (12) below. The positioning plate (12) is fixedly connected to the guide plate (7).

Citation Information

Patent Citations

  • Cable tensile detection device

    CN221405107U