Harness plug-in terminal contact reliability detection device
The wire harness insertion terminal contact reliability testing device uses a servo motor and cylinder to drive the threaded rod and movable plate to automatically insert and remove terminals, solving the problem of high labor intensity for inspectors in existing technologies and improving testing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG YUDIANMING COMMUNICATION TECHNOLOGY CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-07-14
Smart Images

Figure CN224500680U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing device technology, and in particular to a testing device for the reliability of wire harness insertion terminal contact. Background Technology
[0002] Wiring harness insertion terminals are the basic unit of automotive wiring harness connection points. During the wiring harness assembly process, the terminals need to be inserted into the testing device for testing to ensure that the terminals are not loosely connected and are functioning normally, so as to avoid electrical malfunctions that could lead to accidents.
[0003] The existing terminal insertion testing is basically done manually. During testing, the terminal needs to be connected to the testing interface manually, and after the test is completed, the terminal needs to be manually pulled out of the interface by pressing the buckle again. Since there are a lot of terminals to be tested, the terminals need to be repeatedly inserted and removed manually, resulting in a high labor intensity for the testers. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for testing the contact reliability of wire harness insertion terminals.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A wire harness insertion terminal contact reliability testing device includes a detector body and an interface provided on the side wall of the detector body. A wire harness terminal is inserted into the interface, and a buckle is fixedly installed on the wire harness terminal. A movable plate is provided on the outer side of the detector body corresponding to the interface. A clamping groove is opened on the movable plate corresponding to the interface. A pressure plate is provided at the top of the clamping groove. Connecting plates are fixedly installed on both sides of the movable plate. A servo motor is fixedly installed on the side wall of the detector body corresponding to the connecting plates. A threaded rod is fixedly installed on the output end of the servo motor. The tail end of the connecting plate is threadedly connected to the threaded rod. A controller is fixedly installed on the side wall of the detector body.
[0007] As a further embodiment of this utility model, a slider is fixedly installed on the side of the connecting plate near the detector body, and a groove is provided on the detector body corresponding to the position of the slider, so that the slider can be movably inserted into the groove.
[0008] As a further embodiment of this utility model, a cylinder is fixedly installed on the movable plate, and a push rod is fixedly installed on the cylinder, with the top end of the push rod being fixedly connected to the top of the pressure plate.
[0009] As a further embodiment of this utility model, a limiting groove is provided on the inner wall of the clamping groove, and the two sides of the pressure plate can be movably locked in the limiting groove.
[0010] As a further embodiment of this utility model, a display screen is provided on the top of the detector body, and an indicator light is provided below the display screen, with the indicator lights arranged in a manner corresponding to the positions of the interfaces.
[0011] As a further embodiment of this invention, anti-slip pads are fixedly installed on the four corners of the bottom of the detector body.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, the controller activates the cylinder, which drives the push rod downwards. The push rod then pushes the pressure plate downwards, causing the pressure plate to press down on the clip on the wire harness terminal. At this point, the top of the clip disengages from the slot in the interface. As the pressure plate moves downwards, it engages with the movable plate to clamp the wire harness terminal. Subsequently, the servo motor drives the threaded rod to rotate, which in turn pushes the connecting plate to move to the right. The connecting plate then moves the movable plate, and as the movable plate moves to the right, it engages with the pressure plate to pull the wire harness terminal out of the interface. This allows the inspector to simply insert the wire harness terminal without needing to remove it after the inspection is passed, greatly reducing the operator's workload and improving inspection efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the wire harness insertion terminal contact reliability testing device proposed in this utility model.
[0015] Figure 2 This is a partially disassembled structural diagram of the wire harness insertion terminal contact reliability testing device proposed in this utility model;
[0016] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0017] Figure 4 This utility model Figure 2 Enlarged view of section B in the middle.
[0018] In the diagram: 1. Detector body; 2. Interface; 3. Wiring harness terminal; 4. Movable plate; 5. Connecting plate; 6. Servo motor; 7. Anti-slip pad; 8. Threaded rod; 9. Clamping slot; 10. Pressure plate; 11. Limiting slot; 12. Cylinder; 13. Push rod; 14. Buckle; 15. Slider; 16. Slide groove; 17. Display screen; 18. Indicator light; 19. Controller. Detailed Implementation
[0019] 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.
[0020] 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.
[0021] 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.
[0022] Reference Figure 1 - Figure 4 A wire harness insertion terminal contact reliability testing device includes a detector body 1 and an interface 2 on the side wall of the detector body 1. A wire harness terminal 3 is inserted into the interface 2, and a buckle 14 is fixedly installed on the wire harness terminal 3. A movable plate 4 is provided on the outer side of the detector body 1 corresponding to the position of the interface 2. A clamping groove 9 is opened on the movable plate 4 corresponding to the position of the interface 2. A pressure plate 10 is provided at the top of the clamping groove 9. Connecting plates 5 are fixedly installed on both sides of the movable plate 4. A servo motor 6 is fixedly installed on the side wall of the detector body 1 corresponding to the position of the connecting plate 5. A threaded rod 8 is fixedly installed on the output end of the servo motor 6. The tail end of the connecting plate 5 is threadedly connected to the threaded rod 8. A controller 19 is fixedly installed on the side wall of the detector body 1. The servo motor 6 drives the threaded rod 8 to rotate, which pushes the connecting plate 5 to move to the right. The connecting plate 5 moves the movable plate 4. When the movable plate 4 moves to the right, it cooperates with the pressure plate 10 to pull the wire harness terminal 3 out of the interface 2. Thus, the tester only needs to insert the wire harness terminal 3, without having to pull it out after the test is passed.
[0023] In this embodiment, a cylinder 12 is fixedly installed on the movable plate 4, and a push rod 13 is fixedly installed on the cylinder 12. The top end of the push rod 13 is fixedly connected to the top of the pressure plate 10. The cylinder 12 can be started by the controller 19. The cylinder 12 will drive the push rod 13 to move downward. The push rod 13 will push the pressure plate 10 to move downward. The pressure plate 10 will press down on the buckle 14 on the wire harness terminal 3. At this time, the top end of the buckle 14 can disengage from the slot in the interface 2. When the pressure plate 10 moves downward, it will cooperate with the movable plate 4 to clamp the wire harness terminal 3.
[0024] In this embodiment, a slider 15 is fixedly installed on the side of the connecting plate 5 near the detector body 1. A groove 16 is provided on the detector body 1 at the position corresponding to the slider 15. The slider 15 can be moved into the groove 16 to prevent the slider 15 from falling off the outside of the detector body 1.
[0025] In this embodiment, a limiting groove 11 is provided on the inner wall of the clamping groove 9, and the two sides of the pressure plate 10 can be movably locked in the limiting groove 11, so that the pressure plate 10 can be limited by the limiting groove 11.
[0026] In this embodiment, a display screen 17 is provided on the top of the detector body 1, and an indicator light 18 is provided below the display screen 17. The indicator lights 18 are arranged to correspond to the positions of the interface 2. During the test, the numerical changes can be quickly observed through the display screen 17. At the same time, when a defective wire harness terminal 3 is detected, the indicator light 18 will sound an alarm. Since the positions of the indicator lights 18 are arranged to correspond to the positions of the interface 2, the faulty wire harness terminal 3 can be quickly found through the indicator lights 18, which is very convenient.
[0027] In this embodiment, anti-slip pads 7 are fixedly installed on the four corners of the bottom of the detector body 1 to prevent the detector body 1 from shifting when the operator inserts the wire harness terminal 3.
[0028] As can be seen from the above description, the above embodiments of this utility model achieve the following technical effects: When in use, the operator manually inserts the wire harness terminal 3 to be tested into the interface 2. The buckle 14 on the wire harness terminal 3 will be fixed in the interface 2. During testing, the numerical change can be quickly observed through the display screen 17. At the same time, when a non-conforming wire harness terminal 3 is detected, the indicator light 18 will sound an alarm. Since the position of the indicator light 18 corresponds to the position of the interface 2, the faulty wire harness terminal 3 can be quickly found through the indicator light 18, which is very convenient.
[0029] After the test is completed, the controller 19 can start the cylinder 12 to work. The cylinder 12 will drive the push rod 13 to move downward. The push rod 13 will push the pressure plate 10 to move downward. The pressure plate 10 will press down on the buckle 14 on the wire harness terminal 3. At this time, the top of the buckle 14 can disengage from the slot in the interface 2. When the pressure plate 10 moves downward, it will cooperate with the movable plate 4 to clamp the wire harness terminal 3. Then the servo motor 6 will drive the threaded rod 8 to rotate. The threaded rod 8 can push the connecting plate 5 to move to the right. The connecting plate 5 will move the movable plate 4. When the movable plate 4 moves to the right, it will engage with the pressure plate 10. The mechanism will pull the wire harness terminal 3 out of the interface 2, so that the inspector only needs to insert the wire harness terminal 3, without having to pull it out after the inspection is passed. This greatly increases the inspection efficiency of the wire harness terminal 3 and reduces the labor intensity of the operator. After the wire harness terminal 3 is removed from the interface 2, the servo motor 6 will drive the threaded rod 8 to reverse and control the connecting plate 5 to drive the movable plate 4 to reset. At the same time, the cylinder 12 will drive the push rod 13 to control the pressure plate 10 to move upward. When the top of the wire harness terminal 3 loses pressure, it will automatically detach from the movable plate 4 by gravity.
[0030] The control circuit in this solution can be implemented by simple programming by those skilled in the art. It is common knowledge in the field and is used without modification. Furthermore, since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.
[0031] 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 only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.
Claims
1. A wire harness insertion terminal contact reliability testing device, comprising a detector body (1) and an interface (2) provided on the side wall of the detector body (1), wherein a wire harness terminal (3) is inserted into the interface (2), and a buckle (14) is fixedly installed on the wire harness terminal (3), characterized in that, A movable plate (4) is provided on the outer side of the detector body (1) at the position corresponding to the interface (2). A clamping groove (9) is provided on the movable plate (4) at the position corresponding to the interface (2). A pressure plate (10) is provided at the top of the clamping groove (9). Connecting plates (5) are fixedly installed on both sides of the movable plate (4). A servo motor (6) is fixedly installed on the side wall of the detector body (1) at the position corresponding to the connecting plate (5). A threaded rod (8) is fixedly installed on the output end of the servo motor (6). The tail end of the connecting plate (5) is threadedly connected to the threaded rod (8). A controller (19) is fixedly installed on the side wall of the detector body (1).
2. The wire harness insertion terminal contact reliability testing device according to claim 1, characterized in that, A slider (15) is fixedly installed on the side of the connecting plate (5) near the detector body (1). A groove (16) is provided on the detector body (1) at the position corresponding to the slider (15). The slider (15) can be moved into the groove (16).
3. The wire harness insertion terminal contact reliability testing device according to claim 1, characterized in that, A cylinder (12) is fixedly installed on the movable plate (4), and a push rod (13) is fixedly installed on the cylinder (12). The top end of the push rod (13) is fixedly connected to the top of the pressure plate (10).
4. The wire harness insertion terminal contact reliability testing device according to claim 1, characterized in that, A limiting groove (11) is provided on the inner wall of the clamping groove (9), and the two sides of the pressure plate (10) can be movably locked in the limiting groove (11).
5. The wire harness insertion terminal contact reliability testing device according to claim 1, characterized in that, The detector body (1) is provided with a display screen (17) on the top, and an indicator light (18) is provided below the display screen (17). The indicator lights (18) are arranged in a manner corresponding to the position of the interface (2).
6. The wire harness insertion terminal contact reliability testing device according to claim 1, characterized in that, Anti-slip pads (7) are fixedly installed on the four corners of the bottom of the detector body (1).