Wire harness tension testing mechanism

Abstract

The utility model relates to the technical field of wire harness testing, in particular to a wire harness tension testing mechanism which comprises a bottom plate, an anti-skid pad is fixedly connected to the lower end of the bottom plate, a control button is arranged in the middle of the right end of the bottom plate, and sliding grooves are formed in the middle of the front end and the middle of the rear end of the bottom plate. The two sliding grooves are jointly and movably connected with two clamping devices, the outer side face of one clamping device is fixedly connected with a tension meter, and the left end of the bottom plate is fixedly connected with a driving device. According to the wire harness tension testing mechanism provided by the utility model, the tension meter is arranged, so that the tension value can be directly and accurately measured, and accurate data support is provided for testing. Moreover, the device adopts the electric telescopic rod to control the clamp to clamp the wire harness, compared with manual operation, the device can apply tension more stably and accurately, the problem of inaccurate tension control caused by human factors or instability of weight loading is avoided, and the test precision is effectively improved.

Description

Technical Field

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

[0002] Wiring harnesses are widely used in many fields, such as automobiles, electronic devices, and aerospace. In automobiles, wiring harnesses connect various electrical components, such as engine control units, headlights, and horns, ensuring their normal communication and operation. In electronic devices, wiring harnesses connect motherboards to components such as displays and batteries, enabling power transmission and signal transmission. In the aerospace field, wiring harnesses play a crucial role in information exchange and power transmission between critical systems, and their performance is directly related to flight safety.

[0003] Traditional wire harness tensile testing methods typically employ simple weight loading or manual stretching, which makes it difficult to precisely control the magnitude of the tensile force and the loading speed, resulting in inaccurate test results and failing to meet the testing requirements of high-precision wire harness products. Utility Model Content

[0004] The main objective of this invention is to provide a wire harness tensile testing mechanism that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A wire harness tensile testing mechanism includes a base plate, an anti-slip pad fixedly connected to the lower end of the base plate, a control button provided in the middle of the right end of the base plate, and sliding grooves provided in the middle of the front end and the middle of the rear end of the base plate. The two sliding grooves are movably connected to two clamping devices, and a tensile measuring device is fixedly connected to the outer side of one of the clamping devices. A driving device is fixedly connected to the left end of the base plate.

[0007] The clamping device includes a U-shaped outer frame and a lower clamp. Slide plates are fixedly connected to the lower side of the front inner wall and the lower side of the rear inner wall of the U-shaped outer frame. An electric telescopic rod is fixedly connected to the upper end of the U-shaped outer frame. The electric telescopic rod passes through the U-shaped outer frame and is fixedly connected to the upper clamp.

[0008] Preferably, the four slide plates are respectively disposed in two slide grooves, and the two U-shaped outer frames are movably connected to the front and rear ends of the base plate through the four slide plates.

[0009] By adopting the above technical solution, four sliding plates and sliding grooves allow the two U-shaped outer frames to slide smoothly on the base plate, making it easy to adjust the spacing to accommodate wire harnesses of different lengths. It also ensures that the clamping device moves smoothly and guarantees accurate tensile testing.

[0010] Preferably, the lower end of the tension meter is fixedly connected to the outer side of the lower clamp.

[0011] By adopting the above technical solution, the tensile force meter is fixedly connected to the outer side of the lower clamp, which can directly and accurately measure the tensile force on the wire harness. The installation method ensures the stability of the measurement process and obtains accurate tensile force data in real time, providing a reliable basis for wire harness tensile force testing.

[0012] Preferably, the driving device includes a rotary motor, the output end of which is fixedly connected to a bidirectional threaded rod through the base plate, and movable blocks are threadedly connected to the left and right sides of the outer surface of the bidirectional threaded rod. Limit plates are fixedly connected to the lower ends of the two movable blocks, and connecting plates are fixedly connected to the upper ends of the two movable blocks. The right end of the rotary motor is fixedly connected to the left end of the base plate.

[0013] By adopting the above technical solution: the drive device uses a rotary motor to drive a bidirectional threaded rod, causing the movable block to move in the opposite direction, thus achieving automated force application. The limit plate and connecting plate ensure stable operation and efficiently provide power for wire harness tensile testing.

[0014] Preferably, the lower ends of the two lower clamps are fixedly welded to the upper ends of the two connecting plates, respectively.

[0015] By adopting the above technical solution—where two lower clamps are fixedly welded to the connecting plate—the connection is secure and can effectively transmit the tensile force generated by the drive device. This ensures stable stress on the wire harness during testing, prevents loosening from affecting test results, and improves the accuracy and reliability of wire harness tensile testing.

[0016] Preferably, the lower inner wall surface of the base plate is provided with a limiting groove that is adapted to the limiting plate, and the limiting plate is disposed in the limiting groove.

[0017] By adopting the above technical solution: the bottom plate limiting groove is adapted to the limiting plate to restrict the movement direction of the movable block and prevent it from deviating when the bidirectional threaded rod rotates, so that the tension is applied more stably and the wire harness tension test is carried out accurately and orderly.

[0018] Preferably, the rotary motor is electrically connected to the control button.

[0019] By adopting the above technical solution—electrically connecting the rotary motor and control buttons—operators can easily start and stop the motor, flexibly control the start and end of the test, and adjust the tensile test process in a timely manner, greatly improving operational convenience and testing efficiency.

[0020] Preferably, the right end of the bidirectional threaded rod is movably connected to the right inner wall of the base plate via a bearing.

[0021] By adopting the above technical solution—connecting the right end of the bidirectional threaded rod to the right inner wall of the base plate via a bearing—rotational resistance is reduced, resulting in smoother and more stable rotation. This ensures precise movement of the movable block, allows for uniform force distribution on the wire harness, and improves the accuracy and reliability of tensile testing.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In this invention, traditional methods using weights or manual stretching struggle to precisely control the tensile force and loading speed. This device, however, by incorporating a tensile force meter, can directly and accurately measure the tensile force, providing accurate data support for testing. Furthermore, the device employs an electrically operated telescopic rod to control the clamping of the wire harness. Compared to manual operation, this provides a more stable and precise application of tensile force, avoiding inaccurate force control caused by human factors or the instability of weight loading. This effectively improves testing accuracy and better meets the testing requirements of high-precision wire harness products.

[0024] 2. In this invention, traditional testing methods rely heavily on manual operation, resulting in low efficiency and susceptibility to errors. This device incorporates a drive mechanism that uses a rotary motor to rotate a bidirectional threaded rod, which in turn moves a movable block to move a clamp, thus performing a tensile test on the wire harness. This reduces manual stretching operations and increases the automation level of the test. Simultaneously, the electric telescopic rod controls the up-and-down movement of the upper clamp to clamp and release the wire harness, further reducing manual intervention. This not only improves testing efficiency but also effectively avoids errors caused by differences in human operating habits, resulting in more consistent and reliable test results. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a wire harness tensile testing mechanism according to the present invention;

[0026] Figure 2 This is a partially exploded view of a wire harness tensile testing mechanism according to the present invention;

[0027] Figure 3 This is a schematic diagram showing the connection and disassembly of the clamping device of the wire harness tensile testing mechanism of this utility model;

[0028] Figure 4 This is a schematic diagram showing the connection and disassembly of the drive device of the wire harness tensile testing mechanism of this utility model.

[0029] In the diagram: 1. Base plate; 2. Anti-slip mat; 3. Control button; 4. Slide groove; 5. Clamping device; 6. Tension meter; 7. Drive device; 51. U-shaped outer frame; 52. Slide plate; 53. Electric telescopic rod; 54. Upper clamp; 55. Lower clamp; 71. Rotary motor; 72. Bidirectional threaded rod; 73. Movable block; 74. Limiting plate; 75. Connecting plate. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Please see Figure 1-4 This utility model provides a technical solution:

[0034] A wire harness tensile testing mechanism includes a base plate 1, an anti-slip pad 2 fixedly connected to the lower end of the base plate 1, a control button 3 provided in the middle of the right end of the base plate 1, and sliding grooves 4 provided in the middle of the front end and the middle of the rear end of the base plate 1. The two sliding grooves 4 are movably connected to two clamping devices 5. A tensile meter 6 is fixedly connected to the outer side of one of the clamping devices 5, and a driving device 7 is fixedly connected to the left end of the base plate 1.

[0035] In this embodiment, the clamping device 5 includes a U-shaped outer frame 51 and a lower clamp 55. Slide plates 52 are fixedly connected to the lower side of the front inner wall and the lower side of the rear inner wall of the U-shaped outer frame 51. An electric telescopic rod 53 is fixedly connected to the upper end of the U-shaped outer frame 51. The electric telescopic rod 53 passes through the U-shaped outer frame 51 and is fixedly connected to the upper clamp 54. Four slide plates 52 are respectively set in two sliding grooves 4. The two U-shaped outer frames 51 are movably connected to the front end and rear end of the base plate 1 through the four slide plates 52. The lower end of the tension meter 6 is fixedly connected to the outer side of the lower clamp 55. The lower ends of the two lower clamps 55 are respectively fixedly welded to the upper ends of the two connecting plates 75. The lower inner wall of the base plate 1 is provided with a limiting groove that matches the limiting plate 74, and the limiting plate 74 is set in the limiting groove.

[0036] Through the above scheme: In this wire harness tensile testing mechanism, when a wire harness tensile test is required, the operator first uses the electric telescopic rod 53 to retract, causing the upper clamp 54 to rise, placing both ends of the wire harness between the upper clamp 54 and the lower clamp 55 respectively. Then, the electric telescopic rod 53 extends, causing the upper clamp 54 to descend, thus clamping the wire harness. Afterwards, the rotary motor 71 in the drive device 7 starts, driving the bidirectional threaded rod 72 to rotate. The movable block 73 on the bidirectional threaded rod 72 moves in opposite directions due to the threaded connection. The limiting plate 74 at the lower end of the movable block 73 moves within the limiting groove on the lower inner wall of the base plate 1, ensuring stable movement of the movable block 73. The connecting plate 75 at the upper end of the movable block 73 moves accordingly. Since the lower ends of the two lower clamps 55 are fixedly welded to the upper ends of the two connecting plates 75 respectively, this drives the clamping device 5 to move. The U-shaped outer frame 51 of the clamping device 5 slides within the groove 4 of the base plate 1 via the sliding plates 52 fixedly connected to the lower sides of its front and rear inner walls, ensuring smooth movement. During the stretching process, the tension meter 6, fixedly connected to the outer side of the lower clamp 55, measures the tension force on the wire harness in real time to obtain accurate test data.

[0037] In this embodiment, the drive device 7 includes a rotary motor 71. The output end of the rotary motor 71 is fixedly connected to a bidirectional threaded rod 72 through the base plate 1. Movable blocks 73 are threadedly connected to the left and right sides of the outer surface of the bidirectional threaded rod 72. Limiting plates 74 are fixedly connected to the lower ends of the two movable blocks 73, and connecting plates 75 are fixedly connected to the upper ends of the two movable blocks 73. The right end of the rotary motor 71 is fixedly connected to the left end of the base plate 1. The rotary motor 71 is electrically connected to the control button 3. The right end of the bidirectional threaded rod 72 is movably connected to the right inner wall of the base plate 1 through a bearing.

[0038] Through the above scheme: When a wire harness tensile test is required, the operator presses control button 3. Since the rotary motor 71 is electrically connected to control button 3, the rotary motor 71 starts working. The output end of the rotary motor 71 rotates, driving the bidirectional threaded rod 72, which is fixedly connected to it, to rotate. The right end of the bidirectional threaded rod 72 is movably connected to the right inner wall of the base plate 1 through a bearing, ensuring that the bidirectional threaded rod 72 can rotate stably. Because both the left and right sides of the outer surface of the bidirectional threaded rod 72 are threadedly connected to movable blocks 73, as the bidirectional threaded rod 72 rotates, the movable blocks 73 will move linearly along the bidirectional threaded rod 72, and because the thread directions are opposite, the two movable blocks 73 move in opposite directions. The limiting plate 74, which is fixedly connected to the lower end of the movable block 73, moves within the limiting groove opened on the lower inner wall of the base plate 1, playing a limiting role and ensuring that the movable block 73 can only move stably in a straight line. At the same time, the connecting plate 75 fixedly connected to the upper end of the movable block 73 also moves together with the movable block 73. The connecting plate 75 will drive other connected components, such as the lower clamp in the clamping device, to move, thereby applying tension to the wire harness and completing the power drive and tension application process in the wire harness tension test.

[0039] It should be noted that this utility model is a wire harness tensile testing mechanism. During use, the retraction function of the electric telescopic rod 53 is used to raise the upper clamp 54, widening the distance between the upper and lower clamps 55. The two ends of the wire harness are placed between the upper and lower clamps 54 and 55 of the two clamping devices 5, respectively. The electric telescopic rod 53 is then activated to extend, causing the upper clamp 54 to descend and firmly clamp the wire harness. The rotary motor 71 is started by the control button 3. The rotary motor 71 is electrically connected to the control button 3. The output end of the rotary motor 71 drives the bidirectional threaded rod 72 to rotate. The right end of the bidirectional threaded rod 72 is movably connected to the right inner wall of the base plate 1 through a bearing to ensure smooth rotation. When the bidirectional threaded rod 72 rotates, movable blocks 73 are threadedly connected to both the left and right sides of its outer surface. Two movable blocks 73 will move in opposite directions along the bidirectional threaded rod 72. The limiting plate 74 fixedly connected to the lower end of the movable block 73 moves in the limiting groove opened on the lower inner wall of the base plate 1, which plays a limiting and guiding role to ensure the stable movement of the movable block 73. The connecting plate 75 fixedly connected to the upper end of the movable block 73 will move with the movable block 73. The lower ends of the two lower clamps 55 are fixedly welded to the upper ends of the two connecting plates 75 respectively, thereby driving the clamping device 5 to move and apply tension to the wire harness. One of the clamping devices 5 is fixedly connected to the outer side of the tension meter 6, the lower end of which is fixedly connected to the outer side of the lower clamp 55. It will measure the tension on the wire harness in real time and feed back the data. When the set test conditions are reached, the rotary motor 71 is turned off by the control button 3, and the upper clamp 54 is raised by the electric telescopic rod 53 to release the wire harness and remove the tested wire harness, thus completing one test process.

[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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wire harness tensile testing mechanism, comprising a base plate (1), characterized in that: The lower end of the base plate (1) is fixedly connected to an anti-slip pad (2), and a control button (3) is provided in the middle of the right end of the base plate (1). Slide grooves (4) are provided in the middle of the front end and the middle of the rear end of the base plate (1). The two slide grooves (4) are movably connected to two clamping devices (5). A tension meter (6) is fixedly connected to the outer side of one of the clamping devices (5). A drive device (7) is fixedly connected to the left end of the base plate (1). The clamping device (5) includes a U-shaped outer frame (51) and a lower clamp (55). The lower side of the front inner wall and the lower side of the rear inner wall of the U-shaped outer frame (51) are fixedly connected to a sliding plate (52). The upper end of the U-shaped outer frame (51) is fixedly connected to an electric telescopic rod (53). The electric telescopic rod (53) passes through the U-shaped outer frame (51) and is fixedly connected to an upper clamp (54).

2. The wire harness tensile testing mechanism according to claim 1, characterized in that: The four slide plates (52) are respectively set in the two slide grooves (4), and the two U-shaped outer frames (51) are movably connected to the front and rear ends of the base plate (1) through the four slide plates (52).

3. The wire harness tensile testing mechanism according to claim 1, characterized in that: The lower end of the tension meter (6) is fixedly connected to the outer side of the lower clamp (55).

4. The wire harness tensile testing mechanism according to claim 1, characterized in that: The driving device (7) includes a rotary motor (71). The output end of the rotary motor (71) is fixedly connected to a bidirectional threaded rod (72) through the base plate (1). Movable blocks (73) are threadedly connected to the left and right sides of the outer surface of the bidirectional threaded rod (72). Limiting plates (74) are fixedly connected to the lower ends of the two movable blocks (73). Connecting plates (75) are fixedly connected to the upper ends of the two movable blocks (73). The right end of the rotary motor (71) is fixedly connected to the left end of the base plate (1).

5. A wire harness tensile testing mechanism according to claim 1, characterized in that: The lower ends of the two lower clamps (55) are respectively fixedly welded to the upper ends of the two connecting plates (75).

6. The wire harness tensile testing mechanism according to claim 1, characterized in that: The lower inner wall of the base plate (1) is provided with a limiting groove that is compatible with the limiting plate (74), and the limiting plate (74) is disposed in the limiting groove.

7. A wire harness tensile testing mechanism according to claim 4, characterized in that: The rotary motor (71) is electrically connected to the control button (3).

8. A wire harness tensile testing mechanism according to claim 4, characterized in that: The right end of the bidirectional threaded rod (72) is movably connected to the right inner wall of the base plate (1) via a bearing.

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