A harness pull test device

Abstract

The utility model discloses a kind of wire harness tension testing device, it is related to cable technical field, the utility model includes workbench, clamping component, mounting assembly, test component and drive assembly, first sleeve block is movably installed in the inside of workbench, the clamping component includes the support table of fixed mounting in the top of first sleeve block, two second sleeve blocks are movably installed in the inside of support table, and the top of two second sleeve blocks is fixedly installed with moving frame. Advantage lies in: through the collaborative design of arc clamping plate and two-way screw rod, by the second motor drive second sleeve block relative movement, different specifications cable can be quickly clamped, cooperate inside rubber non-slip mat, both increase the friction force of cable and clamping surface, effectively avoid cable sliding or displacement in testing, also can reduce the damage of clamping to cable surface, improve clamping stability and security.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a wire harness tensile testing device. Background Technology

[0002] During assembly and use, wire harnesses need to withstand a certain amount of tensile force. If the tensile strength of the connection is insufficient, it is easy to loosen, break, or cause equipment shutdown, signal interruption, or even safety accidents.

[0003] To address this need, various tensile testing devices have been developed in the prior art. For example, Chinese Patent No. CN210198890U discloses a "tensile testing device for cable production"; this device typically includes a frame, clamps for fixing both ends of the cable, and a drive mechanism for applying tensile force; its clamps often employ simple mechanical clamping blocks, including flat clamping blocks or V-grooves with fixed angles, to clamp the cable.

[0004] However, the aforementioned comparative documents use clamps with fixed clamping surfaces to hold and fix cables, which is difficult to adapt to cables of different diameters. This can easily lead to poor contact with the cable, small contact area, and uneven pressure. Under tension, the cable can easily slip or rotate within the clamp, resulting in the inaccurate transmission of tension and introducing measurement errors. Secondly, over-tightening the clamp to prevent slippage can damage the cable insulation or conductor, causing unexpected damage and affecting the judgment of its true tensile strength. Furthermore, the locking structure of this type of clamp is relatively simple. When subjected to continuous or impact tension, the clamping force may decrease due to vibration or slight deformation of structural components. The lack of a secondary locking mechanism leads to unstable clamping conditions during testing, further affecting the reliability and repeatability of the test results. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a wire harness tensile testing device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wire harness tensile testing device includes a worktable, a clamping assembly, a mounting assembly, a testing assembly, and a driving assembly. A first set of blocks is movably mounted inside the worktable. The clamping assembly includes a support platform fixedly mounted on the top of the first set of blocks. Two second set of blocks are movably mounted inside the support platform. A movable frame is fixedly mounted on the top of each of the two second set of blocks. A mounting plate is movably mounted inside the movable frame. An arc-shaped clamping plate is fixedly mounted on the inner side of the mounting plate. Bidirectional screws are threaded into the internal parts of the two second set of blocks. A second motor is fixedly mounted on the front of the support platform, and the output end of the second motor is fixedly connected to the bidirectional screws.

[0008] Furthermore, the drive assembly includes a screw threadedly fitted inside the first sleeve block, one end of the screw penetrating the interior of the worktable, a first motor fixedly mounted on the right side of the worktable, a drive gear fixedly mounted on the output end of the first motor, and one end of the drive gear movably mounted inside the worktable, a driven gear fixedly mounted on one end of the screw, and the driven gear meshing with the drive gear.

[0009] Furthermore, the mounting assembly includes a first limiting post fixedly mounted on the top of the mounting plate, a second limiting post fixedly mounted on the top of the movable frame, a limiting workpiece movably mounted on the outer surface of the second limiting post, and a groove at one end of the limiting workpiece engaging with the outer surface of the first limiting post. A push rod is fixedly mounted on the outer side of the limiting workpiece.

[0010] Furthermore, the testing assembly includes a vertical plate fixedly installed on the top of the workbench, a hook fixedly installed on the inner side of the vertical plate, and a push-pull force gauge movably installed inside the hook.

[0011] Furthermore, an anti-slip pad is fixedly installed on the inner side of the arc-shaped clamping plate, and the anti-slip pad is made of rubber.

[0012] Furthermore, a support base is fixedly installed on the right side of the workbench, and the groove inside the support base fits the outer surface of the first motor.

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

[0014] 1: Through the coordinated design of the arc-shaped clamping plate and the bidirectional screw, the second set of blocks can be moved relative to each other by the second motor, which can quickly clamp cables of different specifications. With the inner rubber anti-slip pad, the friction between the cable and the clamping surface is increased, which can effectively prevent the cable from sliding or displacing during the test, and can also reduce the damage to the cable surface caused by clamping, thereby improving the clamping stability and safety.

[0015] 2: By pushing the push rod, the workpiece is moved along the second limiting post and locked into the first limiting post, thus achieving double limiting reinforcement of the mounting plate, preventing the clamping assembly from loosening and deforming under tension, and ensuring the structural stability during the test process.

[0016] 3: The drive gear of the first motor meshes with the driven gear at one end of the screw, and the screw and the first sleeve are connected by a threaded connection, so as to realize the smooth and uniform movement of the clamping component and the cable, ensure that the tension is applied evenly and controllably, and guarantee the stability during the cable test. Attached Figure Description

[0017] Figure 1This is a front three-dimensional structural diagram of a wire harness tensile testing device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional appearance structure in frontal cross-section;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the support platform;

[0021] Figure 5 This is a schematic diagram of the exploded structure of the limiting workpiece;

[0022] Figure 6 This is a schematic diagram of the exploded structure of the mounting plate.

[0023] In the diagram: 1. Workbench; 2. Vertical plate; 3. Hook; 4. Push-pull force gauge; 5. Screw; 6. First motor; 7. Support base; 8. First sleeve block; 9. Support platform; 10. Drive gear; 11. Driven gear; 12. Moving frame; 13. Second motor; 14. Bidirectional screw; 15. Arc-shaped clamping plate; 16. Second sleeve block; 17. Mounting plate; 18. Anti-slip pad; 19. First limiting post; 20. Limiting workpiece; 21. Second limiting post; 22. Push rod. Detailed Implementation

[0024] Example, refer to Figures 4-6 A wire harness tensile testing device includes a workbench 1, a clamping assembly, a mounting assembly, a testing assembly, and a driving assembly. A first set of blocks 8 is movably mounted inside the workbench 1, and the clamping assembly includes a support platform 9 fixedly mounted on the top of the first set of blocks 8.

[0025] The drive component moves the first block 8 and support platform 9 precisely, and the test component detects the tensile data in real time. The overall structure is easy to operate and has precise positioning, which reduces the difficulty of operation for staff and significantly improves the accuracy and reliability of tensile test data, meeting the needs of high efficiency and precision in wire harness tensile testing.

[0026] The support platform 9 has two second sleeve blocks 16 that are movably installed inside. The top of each of the two second sleeve blocks 16 is fixedly installed with a movable frame 12. The movable frame 12 has a mounting plate 17 that is movably installed inside. The inner side of the mounting plate 17 is fixedly installed with an arc-shaped clamping plate 15. The two second sleeve blocks 16 are threaded with bidirectional screws 14. The front of the support platform 9 is fixedly installed with a second motor 13, and the output end of the second motor 13 is fixedly connected to the bidirectional screws 14.

[0027] The motor model is Y80M1-2, and its working principle is based on the electromagnetic induction principle to convert electrical energy into mechanical energy: after the power is turned on, the stator winding generates an alternating magnetic field, and the rotor cuts the magnetic field lines under the action of the magnetic field force to form electromagnetic torque and rotate; the current is adjusted by the commutator or frequency converter to precisely control the speed and torque, providing power for the water pump equipment.

[0028] The drive component moves the first block 8 and support platform 9 precisely, and the test component detects the tensile data in real time. The overall structure is easy to operate and has precise positioning, which reduces the difficulty of operation for staff and significantly improves the accuracy and reliability of tensile test data, meeting the needs of high efficiency and precision in wire harness tensile testing.

[0029] The mounting assembly includes a first limiting post 19 fixedly mounted on the top of the mounting plate 17, a second limiting post 21 fixedly mounted on the top of the movable frame 12, a limiting workpiece 20 movably mounted on the outer surface of the second limiting post 21, and one end of the limiting workpiece 20 being grooved into the outer surface of the first limiting post 19. A push rod 22 is fixedly mounted on the outer side of the limiting workpiece 20, and an anti-slip pad 18 is fixedly mounted on the inner side of the arc-shaped clamping plate 15, and the anti-slip pad 18 is made of rubber.

[0030] In this embodiment, the cable is first placed between the two arc-shaped clamping plates 15 on the support platform 9 of the workbench 1. The second motor 13 is started, and its output end drives the bidirectional screw 14 to rotate, so that the two second sleeve blocks 16 threaded on the screw move relative to each other, thereby driving the moving frame 12 to move closer. The rubber anti-slip pads 18 on the inner side of the arc-shaped clamping plates 15 clamp the cable, enhancing the clamping stability.

[0031] Then push the push rod 22 to move the limiting workpiece 20 along the second limiting post 21. One end of the workpiece 20 is grooved and engaged with the first limiting post 19 to limit and reinforce the mounting plate 17. After clamping, the drive assembly drives the first set of blocks 8 and the support platform 9 to move. The test assembly works synchronously to detect the tension of the cable in real time. During the test, the anti-slip pad 18 prevents the cable from sliding, and the limiting structure ensures the stability of the clamping assembly and ensures the accuracy of the tension test data.

[0032] Example, refer to Figures 1-3 A wire harness tensile testing device includes a drive assembly comprising a screw 5 fixedly threaded inside a first sleeve block 8, one end of the screw 5 penetrating the interior of a workbench 1, a first motor 6 fixedly mounted on the right side of the workbench 1, a drive gear 10 fixedly mounted on the output end of the first motor 6, and one end of the drive gear 10 movably mounted inside the workbench 1, and a driven gear 11 fixedly mounted on one end of the screw 5, with the driven gear 11 meshing with the drive gear 10.

[0033] The test assembly includes a vertical plate 2 fixedly installed on the top of the workbench 1, a hook 3 fixedly installed on the inner side of the vertical plate 2, and a push-pull force gauge 4 movably installed inside the hook 3.

[0034] By connecting the push-pull force gauge 4 to the hook 3 on the inside of the vertical plate 2, the cable and the test component can be quickly and securely connected. The push-pull force gauge 4 can provide real-time feedback of the tension data, making it easy for staff to obtain test results intuitively and improving the ease of operation.

[0035] The overall transmission and testing structure work together to ensure the accuracy of tensile force transmission and reduce the impact of external interference on test data, significantly improving the accuracy, reliability and efficiency of cable tensile testing and meeting the stringent requirements of professional testing scenarios.

[0036] A support base 7 is fixedly installed on the right side of the workbench 1, and the groove inside the support base 7 fits the outer surface of the first motor 6.

[0037] The groove of the support base 7 fits against the outer surface of the first motor 6, effectively suppressing the shaking of the motor during operation, ensuring the accuracy of gear transmission and structural stability, and further improving the smoothness of the testing process.

[0038] In this embodiment, one end of the cable, which is fixed by the clamping assembly, is first movably connected to the push-pull force gauge 4 on the hook 3 on the inner side of the vertical plate 2 to ensure a firm connection. Then, it is checked whether the groove of the support base 7 fits the outer surface of the first motor 6 to ensure stable motor installation. The first motor 6 is started, and its output end drives the drive gear 10 to rotate. Since the drive gear 10 meshes with the driven gear 11 at one end of the screw 5, it drives the screw 5 to rotate synchronously. Since the screw 5 is threadedly connected to the first sleeve block 8, the rotation of the screw will drive the first sleeve block 8 to move smoothly along the inside of the worktable 1, driving the clamping assembly and the cable to move synchronously, so that the cable is subjected to continuous tension.

[0039] During this process, the push-pull force gauge 4 monitors and provides feedback on the tension data of the cable in real time, the support base 7 effectively prevents the first motor 6 from shaking when it is working, and the gear transmission ensures accurate power transmission, thus ensuring that the tension test is carried out smoothly and orderly.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wire harness tensile testing device, comprising a worktable (1), a clamping assembly, a mounting assembly, a testing assembly, and a driving assembly, characterized in that, The workbench (1) has a first set of blocks (8) movably installed inside. The clamping assembly includes a support platform (9) fixedly installed on the top of the first set of blocks (8). The support platform (9) has two second sets of blocks (16) movably installed inside. The top of each of the two second sets of blocks (16) is fixedly installed with a movable frame (12). The movable frame (12) has an installation plate (17) movably installed inside. The inner side of the installation plate (17) is fixedly installed with an arc-shaped clamping plate (15). The two second sets of blocks (16) are threaded with a bidirectional screw (14). The front of the support platform (9) is fixedly installed with a second motor (13), and the output end of the second motor (13) is fixedly connected to the bidirectional screw (14).

2. The wire harness tensile testing device according to claim 1, characterized in that, The drive assembly includes a screw (5) that is fixedly threaded inside the first sleeve (8). One end of the screw (5) passes through the inside of the worktable (1). A first motor (6) is fixedly installed on the right side of the worktable (1). A drive gear (10) is fixedly installed at the output end of the first motor (6). One end of the drive gear (10) is movably installed inside the worktable (1). A driven gear (11) is fixedly installed at one end of the screw (5). The driven gear (11) and the drive gear (10) are meshed.

3. The wire harness tensile testing device according to claim 1, characterized in that, The mounting assembly includes a first limiting post (19) fixedly mounted on the top of the mounting plate (17), a second limiting post (21) fixedly mounted on the top of the movable frame (12), a limiting workpiece (20) movably mounted on the outer surface of the second limiting post (21), and a groove at one end of the limiting workpiece (20) engaging with the outer surface of the first limiting post (19), and a push rod (22) fixedly mounted on the outer side of the limiting workpiece (20).

4. The wire harness tensile testing device according to claim 1, characterized in that, The test assembly includes a vertical plate (2) fixedly installed on the top of the workbench (1), a hook (3) fixedly installed on the inner side of the vertical plate (2), and a push-pull force gauge (4) movably installed inside the hook (3).

5. The wire harness tensile testing device according to claim 1, characterized in that, An anti-slip pad (18) is fixedly installed on the inner side of the arc-shaped clamping plate (15), and the anti-slip pad (18) is made of rubber.

6. The wire harness tensile testing device according to claim 1, characterized in that, A support base (7) is fixedly installed on the right side of the workbench (1), and the groove inside the support base (7) fits the outer surface of the first motor (6).

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