Automobile wire harness and automobile wire harness inspection device

Abstract

This utility model relates to the technical field of automotive wiring harnesses and automotive wiring harness testing devices, solving the problem that the clamping force of the wiring harness clamping and positioning structure is not adjustable, which may lead to insufficient clamping force causing the wiring harness to loosen or excessive clamping force damaging the surface of the wiring harness. Specifically, the automotive wiring harness and automotive wiring harness testing device includes an operating table. The bottom surface of the operating table is provided with support feet distributed in a rectangular array, and the top surface is fixedly connected to a tension structure. The top surface of the tension structure is symmetrically fixedly connected to two tension gauges. The ends of the two tension gauges are respectively connected to positioning components. The positioning components include an L-shaped plate fixedly connected to the tension gauges. A horizontal extension plate is fixedly connected to the side of the L-shaped plate. A liftable screw rod is threadedly connected to the extension plate. The bottom end of the screw rod is connected to a pressure sensor through a bearing. The bottom surface of the pressure sensor is provided with a rubber pad. The top of the L-shaped plate is provided with a device box containing a processing structure and a display structure.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive wiring harness testing devices, specifically automotive wiring harness testing devices. Background Technology

[0002] The wire harness tensile testing device disclosed in CN210719958U includes a base plate. A peak tensile gauge is fixed to one side of the top of the base plate by bolts. The pull rod of the peak tensile gauge is connected to a first clamping mechanism. Bearing seats are symmetrically installed on the other side of the top of the base plate by bolts. A reciprocating lead screw is rotatably connected inside the bearing seats. A slider is slidably connected to the reciprocating lead screw. A second clamping mechanism is fixed to the top of the slider by bolts. A reducer connected to the reciprocating lead screw is fixed to one side of the bearing seats by bolts. The input end of the reducer is connected to a stepper motor mounted on the reducer. A rotary encoder is installed on the output end of the stepper motor. An electrical control box is connected to one side of the base plate by wires. A touch screen is fixed to the electrical control box by bolts.

[0003] In fact, the new structure is novel and ingeniously designed, which can apply a uniform tension to the wire harness and effectively improve the accuracy of wire harness tension testing.

[0004] The technical solution in the prior art has the effect of uniformly pulling the wire harness, but the clamping force of the wire harness clamping and positioning structure is not adjustable, which may lead to insufficient clamping force causing the wire harness to loosen or excessive clamping force damaging the surface of the wire harness. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automotive wiring harness detection device, which solves the problem that the clamping force of the wiring harness clamping and positioning structure is not adjustable, which may lead to insufficient clamping force causing the wiring harness to loosen or excessive clamping force damaging the surface of the wiring harness.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automotive wiring harness testing device, including an operating table, the bottom surface of which is provided with support feet arranged in a rectangular array, and the top surface is fixedly connected to a tension structure, the top surface of which is symmetrically fixedly connected to two tension gauges, the ends of which are respectively connected to positioning components;

[0007] The output end of the drive motor of the tension structure is connected to the positive and negative lead screws. The two ends of the positive and negative lead screws are symmetrically threaded to two sliders. The bottom surface of the sliders slides with the surface of the operating table, and the top surface is fixed to the corresponding tension gauge. Both ends of the positive and negative lead screws are rotatably connected to limit blocks, and the limit blocks are fixedly connected to the surface of the operating table.

[0008] The positioning component includes an L-shaped plate fixed to the tension gauge, a horizontal extension plate fixed to the side of the L-shaped plate, a liftable screw rod threaded onto the extension plate, a pressure sensor connected to the bottom end of the screw rod via a bearing, a rubber pad on the bottom surface of the pressure sensor, and a device box containing a processing structure and a display structure on the top of the L-shaped plate.

[0009] In a specific embodiment, the threads at both ends of the positive and negative lead screws are in opposite directions, and the two sliders move synchronously towards or away from each other along the surface of the operating table under the drive of the drive motor.

[0010] In one specific embodiment, the extension plate extends horizontally along the side of the L-shaped plate to form a cantilever structure, and its end is provided with a threaded through hole that matches the screw rod. The bearing at the bottom of the screw rod enables the pressure sensor to remain vertically raised and lowered when the screw rod is rotated.

[0011] In one specific embodiment, the processing structure inside the device box is electrically connected to the display structure, and the display structure is embedded on the outer surface of the device box for real-time display of pressure data detected by the pressure sensor.

[0012] In one specific embodiment, the pressure sensor is connected to the processing structure via a signal line, and the processing structure controls the numerical display and alarm prompts of the display structure based on the pressure sensor signal.

[0013] In one specific embodiment, the drive motor is electrically connected to the processing structure, and the processing structure controls the start, stop, and forward / reverse rotation of the drive motor according to a preset program to adjust the moving speed and spacing of the two sliders.

[0014] An automotive wiring harness, the automotive wiring harness being used for testing by the aforementioned automotive wiring harness testing device.

[0015] Compared with the prior art, the present invention provides an automotive wiring harness testing device, which has the following advantages:

[0016] In the technical solution disclosed in this utility model, the pressure sensor and rubber pad are driven by the liftable screw rod set in the positioning component to press the wire harness vertically downward. The pressure data is processed in real time by the processing structure in the equipment box, and the clamping force value is intuitively fed back by the display structure. The operator can accurately adjust the screw rod insertion depth according to the display value to avoid the wire harness loosening due to insufficient clamping force or damage to the wire harness surface due to excessive clamping force.

[0017] The positioning component of this invention has an L-shaped plate that is fixedly connected to a tension gauge. The horizontal extension plate on the side of the L-shaped plate has a threaded through hole at its end, which engages with the threaded screw rod. The bottom end of the screw rod is connected to a pressure sensor via a bearing, so that when the screw rod is rotated, the pressure sensor and the rubber pad at the bottom only move vertically up and down. The equipment box at the top of the L-shaped plate has a built-in processing structure that receives the real-time pressure signal from the pressure sensor via a signal line and converts it into a numerical value, which is dynamically displayed by a display structure embedded in the surface of the equipment box. The operator can adjust the screw rod's screwing depth according to the displayed value to control the clamping force of the wire harness. At the same time, the processing structure triggers an alarm when the pressure exceeds the limit to avoid excessive clamping force damaging the surface of the wire harness. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the positioning component structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the tensile structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of this utility model.

[0023] In the diagram: 1. Control panel; 2. Support leg; 3. Tensioning structure; 31. Drive motor; 32. Positive and negative lead screws; 33. Slider; 34. Limit block; 4. Force gauge; 5. Positioning assembly; 51. L-shaped plate; 52. Extension plate; 53. Tightening rod; 54. Bearing; 55. Pressure sensor; 56. Rubber pad; 57. Equipment box; 58. Processing structure; 59. Display structure. Detailed Implementation

[0024] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] Figures 1-4 In one embodiment of this utility model, an automotive wiring harness testing device includes an operating table 1. The bottom surface of the operating table 1 is provided with support feet 2 arranged in a rectangular array, and the top surface is fixedly connected to a tension structure 3. The top surface of the tension structure 3 is symmetrically fixedly connected to two tension gauges 4, and the ends of the two tension gauges 4 are respectively connected to positioning components 5.

[0026] The specific problem addressed in this embodiment is to solve the issue that the non-adjustable clamping force of the wire harness clamping and positioning structure may lead to insufficient clamping force causing the wire harness to loosen or excessive clamping force damaging the wire harness surface. This invention utilizes a liftable screw rod 53 located in the positioning component 5 to drive the pressure sensor 55 and rubber pad 56 to vertically press down on the wire harness. The processing structure 58 within the device box 57 processes the pressure data in real time, and the display structure 59 provides intuitive feedback on the clamping force value. The operator can precisely adjust the screw rod 53's insertion depth based on the displayed value, avoiding insufficient clamping force causing the wire harness to loosen or excessive clamping force damaging the wire harness surface.

[0027] The positioning component 5 includes an L-shaped plate 51 fixedly connected to the tension gauge 4. A horizontal extension plate 52 is fixedly connected to the side of the L-shaped plate 51. A liftable screw rod 53 is threadedly connected to the extension plate 52. The bottom end of the screw rod 53 is connected to a pressure sensor 55 through a bearing 54. A rubber pad 56 is provided on the bottom surface of the pressure sensor 55. The top of the L-shaped plate 51 is provided with a device box 57 containing a processing structure 58 and a display structure 59. In this specific embodiment, the threads at both ends of the positive and negative screw rods 32 are turned in opposite directions, and the two sliders 33 move synchronously towards or away from each other along the surface of the operating table 1 under the drive of the drive motor 31. The L-shaped plate 51 of the positioning component 5 is fixedly connected to the tension gauge 4. The end of the horizontal extension plate 52 on the side of the L-shaped plate 51 is provided with a threaded through hole, which is threadedly engaged with the rotatable screw rod 53. The bottom end of the screw rod 53 is connected to the pressure sensor 55 through the bearing 54, so that when the screw rod 53 is rotated, the pressure sensor 55 and the rubber pad 56 at the bottom only move vertically up and down. The equipment box 57 at the top of the L-shaped plate 51 has a built-in processing structure 58, which receives the real-time pressure signal from the pressure sensor 55 through the signal line and converts it into a value. The value is dynamically displayed by the display structure 59 embedded on the surface of the equipment box 57. The operator adjusts the screwing depth of the screw rod 53 according to the displayed value to control the clamping force of the wire harness. At the same time, the processing structure 58 triggers an alarm when the pressure exceeds the limit to avoid damage to the surface of the wire harness due to excessive clamping force.

[0028] In this specific embodiment, the extension plate 52 extends horizontally along the side of the L-shaped plate 51 to form a cantilever structure. Its end is provided with a threaded through hole that matches the screw rod 53. The bearing 54 at the bottom of the screw rod 53 keeps the pressure sensor 55 vertically raised and lowered when the screw rod 53 is rotated. This structure provides clamping space through the cantilever extension plate 52. The threaded through hole and the screw rod 53 cooperate to achieve linear adjustment of clamping force. The bearing 54 eliminates the torque interference on the pressure sensor 55 when the screw rod 53 is rotated, ensuring that the rubber pad 56 vertically presses the wire harness and avoids clamping deviation that could damage the surface of the wire harness.

[0029] In this specific embodiment, the processing structure 58 inside the device box 57 is electrically connected to the display structure 59. The display structure 59 is embedded on the outer surface of the device box 57 and is used to display the pressure data detected by the pressure sensor 55 in real time. Its beneficial effect is that the processing structure 58 converts the analog signal of the pressure sensor 55 into a digital signal and drives the display structure 59 to dynamically display the clamping force value. The operator can accurately control the screwing depth of the screw rod 53 according to the real-time data to prevent the clamping force from being overloaded or insufficient.

[0030] In this specific embodiment, the pressure sensor 55 is connected to the processing structure 58 via a signal line. The processing structure 58 controls the numerical display and alarm prompts of the display structure 59 based on the signal from the pressure sensor 55. Its beneficial effect is that when the pressure sensor 55 detects that the clamping force exceeds the preset threshold, the processing structure 58 triggers the alarm prompts of the display structure 59, such as flashing or beeping, and at the same time automatically locks the further action of the drive motor 31, thus providing double protection for the wiring harness from damage caused by excessive clamping or tensile forces.

[0031] Working principle: During operation, the two ends of the wire harness are placed between the L-shaped plate 51 and the extension plate 52 of the two positioning components 5, respectively. The screw rods 53 on both sides are rotated to make them press down vertically through the threaded through holes, causing the pressure sensor 55 and the rubber pad 56 to contact the surface of the wire harness. The pressure sensor 55 detects the clamping force in real time and converts it into a value through the processing structure 58 in the equipment box 57, which is dynamically displayed by the display structure 59. The operator can accurately adjust the screw rod 53 to the depth of screwing according to the displayed value to ensure that the clamping force is within a safe range. After the drive motor 31 is started, the positive and negative screws 32 drive the two sliders 33 to move synchronously in opposite directions. The tension gauge 4 fixed to the top surface of the slider 33 stretches the wire harness accordingly. The tension data is processed synchronously with the pressure data through the processing structure 58. When the pressure or tension exceeds the preset threshold, the processing structure 58 triggers the alarm prompt of the display structure 59 and controls the drive motor 31 to stop or reverse. Combined with the limit blocks 34 at both ends of the positive and negative screws 32 to constrain the movement stroke of the sliders 33, the linkage control of wire harness clamping and positioning and tension testing and overload protection are realized.

[0032] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0033] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting a wiring harness of a vehicle, comprising an operating table (1), characterized in that: The bottom surface of the operating table (1) is provided with support feet (2) arranged in a rectangular array, and the top surface is fixedly connected to a tension structure (3). The top surface of the tension structure (3) is symmetrically fixedly connected to two tension gauges (4), and the ends of the two tension gauges (4) are respectively connected to positioning components (5). The output end of the drive motor (31) of the tension structure (3) is connected to the positive and negative lead screw (32). The two ends of the positive and negative lead screw (32) are symmetrically threaded to two sliders (33). The bottom surface of the slider (33) is slidably fitted with the surface of the operating table (1), and the top surface is fixedly connected to the corresponding tension gauge (4). Both ends of the positive and negative lead screw (32) are rotatably connected to the limit block (34), and the limit block (34) is fixedly connected to the surface of the operating table (1). The positioning component (5) includes an L-shaped plate (51) fixed to the tension gauge (4), a horizontal extension plate (52) fixed to the side of the L-shaped plate (51), a liftable screw rod (53) threaded onto the extension plate (52), a pressure sensor (55) connected to the bottom end of the screw rod (53) via a bearing (54), a rubber pad (56) on the bottom surface of the pressure sensor (55), and a device box (57) containing a processing structure (58) and a display structure (59) on the top of the L-shaped plate (51).

2. The automotive wire harness detection apparatus according to claim 1, characterized by: The threads at both ends of the positive and negative lead screws (32) are in opposite directions, and the two sliders (33) move synchronously towards or away from each other along the surface of the operating table (1) under the drive of the drive motor (31).

3. The automotive wire harness detection apparatus according to claim 1, characterized by: The extension plate (52) extends horizontally along the side of the L-shaped plate (51) to form a cantilever structure. Its end is provided with a threaded through hole that matches the screw rod (53). The bearing (54) at the bottom of the screw rod (53) keeps the pressure sensor (55) vertically raised and lowered when the screw rod (53) is rotated.

4. The automotive wire harness detection apparatus according to claim 1, characterized by: The processing structure (58) inside the device box (57) is electrically connected to the display structure (59). The display structure (59) is embedded on the outer surface of the device box (57) and is used to display the pressure data detected by the pressure sensor (55) in real time.

5. The automotive wiring harness testing device according to claim 1, characterized in that: The pressure sensor (55) is connected to the processing structure (58) via a signal line. The processing structure (58) controls the display structure (59) to display the values ​​and provide alarm prompts based on the signal from the pressure sensor (55).

6. The automotive wire harness detection apparatus according to claim 1, characterized by: The drive motor (31) is electrically connected to the processing structure (58). The processing structure (58) controls the start, stop and forward / reverse rotation of the drive motor (31) according to a preset program to adjust the moving speed and spacing of the two sliders (33).

7. An automotive wiring harness characterized by: The automotive wiring harness is used for testing on the automotive wiring harness testing device according to any one of claims 1-6.

Images