Automobile wire harness detection tool

Abstract

The utility model discloses an automobile wire harness detection tool, which comprises a base, a fixed plate, a first mounting table and a slide rail are fixedly arranged on the base, a screw rod is rotatably arranged on the fixed plate, a second mounting table is slidably arranged on the slide rail through a slide block, and a nut is arranged on the second mounting table and sleeves the screw rod. The screw rod is rotated to drive the second mounting table to move so as to adjust the distance between the two mounting tables; the two mounting tables are detachably provided with a detection tool plate, the base is provided with a distance marking assembly, the mounting tables are provided with conical marking rods extending towards the marking ruler, the fixing plate is provided with a buffer pad, the screw end is provided with a hand wheel with a handle, and the bottom face of the base is provided with supporting legs. According to the tool, stepless distance adjustment is achieved through screw transmission, the distance is visually read through the marking assembly and the marking rod, and the tool has the advantages of being flexible in adjustment, accurate in measurement, convenient and fast to operate, stable in structure and the like and is suitable for efficient detection of automobile wire harnesses of different lengths.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a testing fixture for automotive wiring harnesses. Background Technology

[0002] As the "nerve cord" of a vehicle's electrical system, transmitting power and signals, the quality of automotive wiring harnesses directly affects the vehicle's safety, reliability, and functionality, thus requiring rigorous testing. This is because problems such as open circuits, short circuits, and insulation damage in the wiring harness can lead to not only malfunctions like headlight failure and electronic device failures, but also potential safety hazards such as electrical leakage and spontaneous combustion. Furthermore, testing is a necessary step to meet automotive manufacturing industry standards and regulations, ensuring product quality consistency and avoiding recall risks. In addition, testing verifies the stability of the wiring harness under complex conditions such as vibration and temperature changes, improving overall vehicle durability, reducing after-sales maintenance costs, and playing a crucial role in ensuring safe vehicle operation and enhancing brand reputation.

[0003] In the prior art, a tooling device for detecting the length of automotive wiring harnesses, disclosed in publication number "CN221571304U", aims to solve the technical problems of current automotive wiring harness detection methods that rely on comparison methods and caliper measurements, which are unstable, complex to operate, and have poor error prevention. The device includes a base plate, with a lamp head module at one end of the upper surface of the base plate. A slide rail is fixedly connected to the surface of the base plate, and a limit plate is fixedly connected to the other end of the slide rail. A connector module is provided on one side of the lamp head module, and the connector module is slidably connected to the slide rail. Several baffles are provided along the side of the lamp head module on the upper surface of the base plate. This invention involves placing one end of the lamp head assembly to be tested into the placement slot A in the lamp head module, then straightening the wiring harness and checking whether the connector end can be placed into the placement slot B in the connector module. A fixed-length tooling is used for wiring harness length detection. The lamp head module is a detachable and replaceable design, and different product markings are provided on the base plate. By replacing the detection module, it can be used to detect the length of wiring harnesses for various products.

[0004] However, existing technologies still have significant shortcomings, such as:

[0005] Traditional automotive wiring harness testing fixtures often use fixed gears or segmented adjustment structures, which cannot achieve continuous stepless adjustment of the spacing. They are difficult to accurately adapt to non-standard length wiring harnesses or diverse testing needs, and the adjustment process requires frequent disassembly and assembly of components, which is time-consuming and labor-intensive. Utility Model Content

[0006] The purpose of this invention is to provide an automotive wiring harness testing fixture to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An automotive wiring harness testing fixture includes a support base plate, on which a fixed vertical plate, a first mounting platform, and several slide rails are fixedly mounted. A screw is rotatably mounted on the fixed vertical plate, and a sliding block is slidably mounted on the slide rails. A second mounting platform is fixedly mounted on the sliding block, and a nut is fixedly mounted on the second mounting platform. The nut is sleeved on the screw. By rotating the screw, the nut and the second mounting platform can be moved on the slide rails, thereby adjusting the distance between the first and second mounting platforms. The testing fixture plate is detachably mounted on the first and second mounting platforms.

[0009] The support seat is also equipped with a distance marking component.

[0010] Preferably, the distance marking component includes a marking fixing frame fixedly mounted on the support base, a marking ruler slidably mounted in the marking fixing frame, and a locking bolt provided on the side wall of the marking fixing frame.

[0011] Preferably, the first mounting platform and the second mounting platform are fixedly provided with indicator rods.

[0012] Preferably, one end of the indicator rod is tapered and extends toward the indicator ruler.

[0013] Preferably, a buffer pad is fixedly provided on the fixed vertical plate.

[0014] Preferably, a handwheel is fixedly provided at one end of the screw, and a handle is fixedly provided on the handwheel.

[0015] Preferably, a support foot pad is fixedly provided on the bottom surface of the support seat.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Through the threaded transmission structure of the screw and nut, combined with the guiding effect of the slide rail and slider, the distance between the first and second mounting platforms can be infinitely adjusted by turning the handwheel. There is no need to preset fixed gears, which can quickly adapt to the testing needs of automotive wiring harnesses of different lengths, significantly improving the versatility and testing efficiency of the tooling.

[0018] 2. The distance marking component on the base, in conjunction with the tapered marking rods on the first and second mounting platforms, allows for precise reading of the distance between the two mounting platforms by adjusting and locking the marking ruler reference. This design transforms abstract distance adjustment into a visual scale indication, avoiding human measurement errors and improving the accuracy and reliability of harness length detection.

[0019] 3. Each component adopts a modular layout, which facilitates future upgrades or modifications. By replacing the test fixture plates of different specifications, it can be compatible with a variety of wire harness types, enhancing the applicability and scalability of the fixture.

[0020] In use, this invention rotates a screw by turning a handwheel. The threaded transmission between the screw and the nut causes the second mounting platform, which has the nut fixed to it, to slide on a slide rail via a slider, thereby achieving stepless adjustment of the distance between the second and first mounting platforms. During adjustment, the indicator rods on the first and second mounting platforms move with the mounting platforms and indicate their positions on the distance marking component on the base. The initial zero scale reference is adjusted by loosening the locking bolt and sliding the marking ruler. After locking, the difference in scale readings of the indicator rods on the marking ruler is the distance between the two mounting platforms, thus accurately achieving size adjustment and distance measurement for wire harness detection. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the overall device of this utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the screw of this utility model;

[0023] Figure 3 This utility model Figure 1 A schematic diagram of the three-dimensional structure at point A in the diagram;

[0024] Figure 4 This is a three-dimensional structural diagram of the screw and nut mating of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the sliding rail and sliding block of this utility model.

[0026] In the diagram: 1. Support seat plate; 2. Fixed vertical plate; 3. First mounting platform; 4. Slide rail; 5. Sliding block; 6. Second mounting platform; 7. Nut; 8. Screw; 9. Handwheel; 10. Handle; 11. Inspection fixture plate; 121. Marker fixing frame; 122. Marker ruler; 123. Locking bolt; 13. Marker indicator rod; 14. Buffer pad; 15. Support foot pad. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0028] Please see Figure 1-5 This utility model provides a technical solution:

[0029] This automotive wiring harness testing fixture is composed of multiple components working together. The support base plate 1 serves as the basic support component, and its bottom surface is fixed with support pads 15 to place the fixture stably on the working surface. On the support base plate 1, the fixed vertical plate 2, the first mounting platform 3, and several slide rails 4 are fixedly installed.

[0030] A fixed vertical plate 2 is securely fixed to a support base plate 1, on which a screw 8 is rotatably mounted. The screw 8 is rotatably mounted on the fixed vertical plate 2 via a bearing, allowing it to rotate freely. A slide rail 4 is connected to the support base plate 1, and a sliding block 5 can slide smoothly on the slide rail 4. A second mounting platform 6 is fixedly connected above the sliding block 5, allowing it to move along the slide rail 4 with the sliding block 5. A nut 7 is fixedly mounted on the second mounting platform 6, tightly fitted onto the screw 8. When the screw 8 rotates, the nut 7 moves axially along the screw 8 due to the threaded engagement, thereby causing the second mounting platform 6 to slide on the slide rail 4.

[0031] One end of the screw 8 is connected to a handwheel 9, which is equipped with a handle 10. By gripping the handle 10 and turning the handwheel 9, the operator can rotate the screw 8, thereby adjusting the position of the second mounting platform 6. Both the first mounting platform 3 and the second mounting platform 6 are detachably equipped with testing fixture plates 11, facilitating the installation and fixation of the automotive wiring harness to be tested, and simplifying the replacement and maintenance of the fixture plates. The fixture plates have corresponding grooves, which are created according to the actual condition of the wiring harness terminals. The embodiments and accompanying drawings in this patent are only schematic diagrams and do not represent the actual shape and size of the wiring harness terminals.

[0032] The distance marking assembly is mounted on the support base plate 1 and consists of a marking fixing frame 121, a marking ruler 122, and locking bolts 123. The marking ruler 122 has several indexing slots, allowing for selection of a range based on the actual length and size of the wire harness. The marking fixing frame 121 is fixed to the support base plate 1, and the marking ruler 122 can slide within the marking fixing frame 121. The locking bolts 123 on the side wall of the marking fixing frame 121 are used to lock the position of the marking ruler 122. Marking indicator rods 13 are fixed on both the first mounting platform 3 and the second mounting platform 6. One end of the marking indicator rod 13 is tapered, extending towards the marking ruler 122 without contacting it, for precise position indication. Additionally, a buffer pad 14 is fixed on the fixed vertical plate 2, which buffers and dampens vibrations during tooling component movement, reducing collisions and impacts between components, extending the tooling's service life, and improving detection accuracy.

[0033] Working Principle: During use, when adjusting the distance between the first mounting platform 3 and the second mounting platform 6, the operator holds the handle 10 on the handwheel 9 and rotates it. The handwheel 9 drives the screw 8 to rotate. Due to the threaded transmission relationship between the nut 7 and the screw 8, the nut 7 moves axially along the screw 8, thereby driving the fixed second mounting platform 6 to slide on the slide rail 4 via the sliding block 5, achieving stepless adjustment of the distance between the first mounting platform 3 and the second mounting platform 6. This stepless adjustment method can meet the diverse needs of mounting platform spacing during the inspection of automotive wiring harnesses of different lengths.

[0034] During the adjustment of the distance between the first mounting platform 3 and the second mounting platform 6, the indicator rod 13 mounted on these two platforms will indicate different positions on the indicator ruler 122 as the mounting platforms move. The indicator ruler 122 can slide within the indicator fixing frame 121. When the position of the automotive wiring harness terminal on the first mounting platform 3 changes, the initial position of the indicator ruler 122 can be adjusted by loosening the locking bolt 123 on the side wall of the indicator fixing frame 121, aligning its zero mark with the corresponding reference position, and then tightening the locking bolt 123 to fix the indicator ruler 122. At this time, the difference in scale indicated by the indicator rod 13 on the indicator ruler 122 can intuitively reflect the distance between the first mounting platform 3 and the second mounting platform 6, thereby achieving more accurate and convenient detection of the automotive wiring harness length.

[0035] 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 tooling for testing automotive wiring harnesses, comprising a support plate (1), characterized in that: The support seat (1) is fixedly provided with a fixed vertical plate (2), a first mounting platform (3) and several slide rails (4). A screw (8) is rotatably provided on the fixed vertical plate (2). A sliding block (5) is slidably provided on the slide rail (4). A second mounting platform (6) is fixedly provided on the sliding block (5). A nut (7) is fixedly provided on the second mounting platform (6). The nut (7) is sleeved on the screw (8). By rotating the screw (8), the nut (7) and the second mounting platform (6) can be driven to move on the slide rail (4), thereby realizing the adjustment of the distance between the first mounting platform (3) and the second mounting platform (6). A detection fixture plate (11) is detachably provided on the first mounting platform (3) and the second mounting platform (6). The support seat (1) is also provided with a distance marking component.

2. The automotive wiring harness testing fixture according to claim 1, characterized in that: The distance marking component includes a marking fixing frame (121) fixedly mounted on the support seat plate (1), a marking ruler (122) is slidably mounted in the marking fixing frame (121), and a locking bolt (123) is provided on the side wall of the marking fixing frame (121).

3. The automotive wiring harness testing fixture according to claim 2, characterized in that: Marker rods (13) are fixedly installed on the first mounting platform (3) and the second mounting platform (6).

4. The automotive wiring harness testing fixture according to claim 3, characterized in that: One end of the indicator rod (13) is tapered and extends toward the indicator ruler (122).

5. The automotive wiring harness testing fixture according to any one of claims 1-4, characterized in that: A buffer pad (14) is fixedly installed on the fixed vertical plate (2).

6. The automotive wiring harness testing fixture according to claim 2, characterized in that: A handwheel (9) is fixedly provided at one end of the screw (8), and a handle (10) is fixedly provided on the handwheel (9).

7. The automotive wiring harness testing fixture according to claim 1, characterized in that: A support foot pad (15) is fixedly installed on the bottom surface of the support seat plate (1).

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