A multi-point parallel test device for harness continuity test
By designing an automatic clamping and sorting wire harness continuity testing device, the problem of manual sorting after wire harness testing in the prior art has been solved, realizing automatic sorting and classification of wire harnesses and improving testing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SHENGHAIHUI ELECTRONICS CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-26
AI Technical Summary
Existing multi-point parallel wire harness continuity testing devices are not convenient for automatically classifying qualified and unqualified wire harnesses after testing, requiring manual sorting.
A multi-point parallel testing device for wire harness continuity testing was designed. It utilizes a stepper motor and a threaded shaft structure to achieve automatic clamping and sorting of wire harnesses. The controller controls the motor rotation to achieve automatic sorting of qualified and unqualified wire harnesses, which then fall into different storage boxes.
It enables automatic classification of wire harnesses, avoiding subsequent manual sorting steps and improving testing efficiency and accuracy.
Smart Images
Figure CN224405791U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of wire harness continuity testing devices, and particularly relates to a multi-point parallel testing device for wire harness continuity testing. Background Technology
[0002] A wire harness continuity tester is a device specifically designed to test the continuity performance of wire harnesses. It is mainly used to check whether the wires in the wire harness are connected, whether there are short circuits, open circuits, or poor contacts. Some complex wire harnesses are composed of multiple wires, and each wire needs to be tested. Therefore, a multi-point parallel wire harness continuity tester is used.
[0003] Currently, existing multi-point parallel wire harness continuity testing devices mark the wire harness surface after testing to distinguish between qualified and unqualified wire harnesses. This classification method is very inconvenient, and workers still need to sort them afterward.
[0004] To address this issue, we propose a multi-point parallel testing device for wire harness continuity testing. Utility Model Content
[0005] The purpose of this application is to solve the problem in the prior art that it is inconvenient to classify the wire harnesses after testing, and to propose a multi-point parallel testing device for wire harness continuity testing.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A multi-point parallel testing device for wire harness continuity testing includes a rectangular frame. Two storage boxes are slidably connected inside the rectangular frame. A rotating shaft is rotatably connected to the inner wall of the rectangular frame. A rotating plate is fixedly connected to the outer surface of the rotating shaft. A first stepper motor is located on the right side of the rotating shaft. A protective frame is located on the right side of the rectangular frame. A controller is fixedly connected to the inner wall of the protective frame. A rectangular plate is fixedly connected to the upper surface of the rectangular frame. A second stepper motor is located on the right side of the rectangular plate. A threaded shaft is fixedly connected to the output end of the second stepper motor. The outer surface of the threaded shaft is rotatably connected to the inner wall of the rectangular plate. The outer surface of the rectangular plate is threaded with a movable plate. Inside the movable plate, two drive shafts are slidably connected. Bullseye bearings are fixedly connected to the ends of the two drive shafts that are far apart from each other. Clamping plates are fixedly connected to the ends of the two drive shafts that are close to each other. Two force springs are fixedly connected to the inner wall of the movable plate. Rubber pads are fixedly connected to the sides of the two clamping plates that are close to each other. Two guide plates are fixedly connected to the left side of the rectangular plate. The outer surface of each guide plate is in contact with the outer surface of the bullseye bearing. A square plate is fixedly connected to the left side of the rectangular plate. Two placement blocks are fixedly connected to the upper surface of the square plate.
[0008] Preferably, the bottom surface of the first stepper motor is fixedly connected to a first support plate, and the left side of the first support plate is fixedly connected to the right side of the rectangular frame.
[0009] Preferably, the right side of the protective frame has two slots, each slot having a locking block inside, and the right ends of the two locking blocks are fixedly connected to a protective plate.
[0010] Preferably, a second support plate is fixedly connected to the bottom surface of the second stepper motor, and the left side of the second support plate is fixedly connected to the right side of the rectangular plate.
[0011] Preferably, the inner wall of the rectangular plate is fixedly connected to a first test head and a second test head, and the output end of the first stepper motor is fixedly connected to the right end of the rotating shaft.
[0012] Preferably, two positioning shafts are fixedly connected to the left side of the rectangular plate, and the inside of the movable plate is slidably connected to the outer surface of the two positioning shafts. Two T-shaped grooves are opened on the inner wall of the movable plate, and a T-shaped slider is slidably connected inside each T-shaped groove. The bottom surface of each T-shaped slider is fixedly connected to the upper surface of the clamping plate. The ends of the two force-bearing springs that are close to each other are respectively fixedly connected to the sides of the two clamping plates that are far apart from each other. The controller is electrically connected to the first stepper motor, the second stepper motor, the first test head, and the second test head through wires.
[0013] In summary, the technical effects and advantages of this application are as follows:
[0014] By incorporating a placement block, the wire harness to be tested can be temporarily supported. Then, the second stepper motor is controlled to operate, transmitting power to a threaded shaft. Utilizing the threaded connection between the shaft and the moving plate, the moving plate moves towards the rectangular plate. As the moving plate moves, it pushes the bullseye bearing and drive shaft to move synchronously. Because the bullseye bearing contacts the surface of the guide plate, the guide plate pushes the bullseye bearing and drive shaft to press against the clamping plate. At this point, the clamping plate clamps and fixes the wire harness to be tested placed on the placement block surface. As the moving plate continues to move, the wire harness is inserted into the first and second test heads for testing. If the wire harness is qualified, the first and second test heads transmit electrical signals to the controller via wires. The controller then controls the first stepper motor to rotate 45 degrees clockwise, causing qualified wire harnesses to fall into the front storage box. Conversely, if a defective wire harness appears, the first stepper motor rotates 45 degrees counterclockwise, causing the defective wire harness to fall into the rear storage box. This achieves automatic sorting, avoiding the need for subsequent manual sorting. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the threaded shaft of this utility model;
[0016] Figure 2 This is a right-side three-dimensional structural schematic diagram of the first stepper motor of this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the second stepper motor of this utility model;
[0018] Figure 4 This is a right-side stereoscopic structural diagram of the controller of this utility model.
[0019] In the diagram: 1. Rectangular frame; 2. Storage box; 3. Rotating shaft; 4. Rotating plate; 5. Moving plate; 6. Guide plate; 7. First test head; 8. Positioning shaft; 9. Second stepper motor; 10. Threaded shaft; 11. Second test head; 12. Square plate; 13. Rectangular plate; 14. Bullseye bearing; 15. Drive shaft; 16. T-shaped slider; 17. Force spring; 18. Clamping plate; 19. Rubber pad; 20. T-shaped slide; 21. Placement block; 22. Second support plate; 23. First support plate; 24. First stepper motor; 25. Controller; 26. Protective frame; 27. Slot; 28. Locking block; 29. Protective plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-4 A multi-point parallel testing device for wire harness continuity testing includes a rectangular frame 1. Two storage boxes 2 are slidably connected inside the rectangular frame 1. A rotating shaft 3 is rotatably connected to the inner wall of the rectangular frame 1. A rotating plate 4 is fixedly connected to the outer surface of the rotating shaft 3. A first stepper motor 24 is arranged on the right side of the rotating shaft 3. A first support plate 23 is fixedly connected to the bottom surface of the first stepper motor 24. The left side of the first support plate 23 is fixedly connected to the right side of the rectangular frame 1. By setting the first support plate 23, the first stepper motor 24 can be supported, making the first stepper motor 24 run more stably.
[0022] A protective frame 26 is provided on the right side of the rectangular frame 1. Two slots 27 are provided on the right side of the protective frame 26. Each slot 27 has a locking block 28 inside. The right ends of the two locking blocks 28 are fixedly connected to the protective plate 29. By providing the protective frame 26, slots 27 and locking blocks 28, and by using the relationship between the locking blocks 28 and the slots 27, the protective plate 29 can be removed.
[0023] A controller 25 is fixedly connected to the inner wall of the protective frame 26. A rectangular plate 13 is fixedly connected to the upper surface of the rectangular frame 1. A second stepper motor 9 is provided on the right side of the rectangular plate 13. A second support plate 22 is fixedly connected to the bottom surface of the second stepper motor 9. The left side of the second support plate 22 is fixedly connected to the right side of the rectangular plate 13. By providing the second support plate 22, the second support plate 22 can provide support for the second stepper motor 9.
[0024] The output end of the second stepper motor 9 is fixedly connected to a threaded shaft 10. The outer surface of the threaded shaft 10 is rotatably connected to the inner wall of the rectangular plate 13. A movable plate 5 is threadedly connected to the outer surface of the threaded shaft 10. Two drive shafts 15 are slidably connected inside the movable plate 5. Bullseye bearings 14 are fixedly connected to the ends of the two drive shafts 15 that are far apart from each other. Clamping plates 18 are fixedly connected to the ends of the two drive shafts 15 that are close to each other. Two force springs 17 are fixedly connected to the inner wall of the movable plate 5. Rubber pads 19 are fixedly connected to the sides of the two clamping plates 18 that are close to each other. Two guide plates 6 are fixedly connected to the left side of plate 13. The outer surface of each guide plate 6 is in contact with the outer surface of the bullseye bearing 14. A square plate 12 is fixedly connected to the left side of rectangular plate 13. A first test head 7 and a second test head 11 are fixedly connected to the inner wall of rectangular plate 13 respectively. The output end of the first stepper motor 24 is fixedly connected to the right end of the rotating shaft 3. By setting the first test head 7 and the second test head 11, the continuity of multiple wires in the wire harness can be tested using the first test head 7 and the second test head 11, so as to achieve the purpose of multi-point parallel testing.
[0025] Two placement blocks 21 are fixedly connected to the upper surface of the square plate 12, and two positioning shafts 8 are fixedly connected to the left side of the rectangular plate 13. The interior of the moving plate 5 is slidably connected to the outer surface of the two positioning shafts 8. Two T-shaped grooves 20 are opened on the inner wall of the moving plate 5. A T-shaped slider 16 is slidably connected inside each T-shaped groove 20. The bottom surface of each T-shaped slider 16 is fixedly connected to the upper surface of the clamping plate 18. The ends of the two force springs 17 that are close to each other are fixedly connected to the sides of the two clamping plates 18 that are far apart from each other. The controller 25 is electrically connected to the first stepper motor 24, the second stepper motor 9, the first test head 7 and the second test head 11 through wires. By setting the positioning shafts 8, the rotation of the moving plate 5 can be prevented, and the sliding characteristic of the T-shaped sliders 16 inside the T-shaped grooves 20 can limit the movement trajectory of the clamping plate 18.
[0026] The working principle of this utility model is as follows: In use, the wire harness to be tested is placed on the surface of the placement block 21. The placement block 21 provides temporary support for the wire harness. Then, the second stepper motor 9 is controlled to run, transmitting power to the threaded shaft 10. Utilizing the threaded connection between the threaded shaft 10 and the moving plate 5, the moving plate 5 can be moved towards the rectangular plate 13. As the moving plate 5 moves, it pushes the bullseye bearing 14 and the drive shaft 15 to move synchronously. Because the bullseye bearing 14 is in contact with the surface of the guide plate 6, the guide plate 6 will push the bullseye bearing 14 and the drive shaft 15 to move synchronously. 5. The clamping plate 18 is squeezed, which clamps and fixes the wire harness to be tested placed on the surface of the placement block 21, thereby driving the wire harness to move synchronously with the moving plate 5. As the moving plate 5 continues to move, the wire harness will be inserted into the first test head 7 and the second test head 11 for testing. It should be understood that the first test head 7 and the second test head 11 are each equipped with multiple test wires, which correspond one-to-one with the multiple wires in the wire harness, so that the continuity of multiple wires in the wire harness can be tested synchronously. If the wire harness is qualified, the first test head 7 and the second test head 11 will transmit an electrical signal to the control through the wires. The controller 25 controls the second stepper motor 9 to run in reverse, thereby driving the threaded shaft 10 to rotate in reverse, causing the moving plate 5 to gradually move away from the rectangular plate 13. When the moving plate 5 moves away from the inclined surface of the guide plate 6, the guide plate 6 will not restrict the bullseye bearing 14, so the force spring 17 will pull the clamping plate 18 to reset, stopping the clamping of the wire harness. However, since a rubber pad 19 is fixed on one side of the clamping plate 18, the wire harness will sink into the rubber pad 19. Therefore, the wire harness will move a small distance to the left along with the clamping plate 18 until the wire harness is no longer in contact with the upper surface of the placement block 21. The wire harness will fall downwards under the influence of gravity until it lands on the surface of the rotating plate 4. Then, the controller 25 will control the first step motor 24 to rotate 45 degrees clockwise. The first step motor 24 will rotate 45 degrees clockwise, which will drive the rotating plate 4 fixed on the surface of the rotating shaft 3 to rotate 45 degrees synchronously. Therefore, the wire harness on the surface of the rotating plate 4 will fall into the front storage box 2. Conversely, when a defective wire appears, the controller 25 will control the first step motor 24 to rotate 45 degrees counterclockwise, so that the defective wire harness falls into the rear storage box 2, thereby achieving the purpose of automatic sorting and avoiding the need for manual sorting later.
[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multi-point parallel testing device for harness continuity testing, comprising a rectangular frame (1), characterized in that: Two storage boxes (2) are slidably connected inside the rectangular frame (1). A rotating shaft (3) is rotatably connected to the inner wall of the rectangular frame (1). A rotating plate (4) is fixedly connected to the outer surface of the rotating shaft (3). A first stepper motor (24) is provided on the right side of the rotating shaft (3). A protective frame (26) is provided on the right side of the rectangular frame (1). A controller (25) is fixedly connected to the inner wall of the protective frame (26). A rectangular plate (13) is fixedly connected to the upper surface of the rectangular frame (1). A second stepper motor (9) is provided on the right side of the rectangular plate (13). A threaded shaft (10) is fixedly connected to the output end of the second stepper motor (9). The outer surface of the threaded shaft (10) is rotatably connected to the inner wall of the rectangular plate (13). A movable [device] is threadedly connected to the outer surface of the threaded shaft (10). The movable plate (5) has two drive shafts (15) slidably connected inside. Bullseye bearings (14) are fixedly connected to the ends of the two drive shafts (15) that are far apart from each other. Clamping plates (18) are fixedly connected to the ends of the two drive shafts (15) that are close to each other. Two force springs (17) are fixedly connected to the inner wall of the movable plate (5). Rubber pads (19) are fixedly connected to the sides of the two clamping plates (18) that are close to each other. Two guide plates (6) are fixedly connected to the left side of the rectangular plate (13). The outer surface of each guide plate (6) is in contact with the outer surface of the bullseye bearing (14). A square plate (12) is fixedly connected to the left side of the rectangular plate (13). Two placement blocks (21) are fixedly connected to the upper surface of the square plate (12).
2. The multi-point parallel testing device for wire harness continuity testing according to claim 1, characterized in that: The bottom surface of the first stepper motor (24) is fixedly connected to a first support plate (23), and the left side of the first support plate (23) is fixedly connected to the right side of the rectangular frame (1).
3. The multi-point parallel testing device for wire harness continuity testing according to claim 1, characterized in that: The right side of the protective frame (26) has two slots (27), and each slot (27) has a locking block (28) inside. The right ends of the two locking blocks (28) are fixedly connected to the protective plate (29).
4. The multi-point parallel testing device for wire harness continuity testing according to claim 1, characterized in that: The bottom surface of the second stepper motor (9) is fixedly connected to the second support plate (22), and the left side of the second support plate (22) is fixedly connected to the right side of the rectangular plate (13).
5. The multi-point parallel testing device for wire harness continuity testing according to claim 1, characterized in that: The inner wall of the rectangular plate (13) is fixedly connected to the first test head (7) and the second test head (11), and the output end of the first stepper motor (24) is fixedly connected to the right end of the rotating shaft (3).
6. The multi-point parallel testing device for wire harness continuity testing according to claim 5, characterized in that: Two positioning shafts (8) are fixedly connected to the left side of the rectangular plate (13). The interior of the moving plate (5) is slidably connected to the outer surface of the two positioning shafts (8). Two T-shaped grooves (20) are opened on the inner wall of the moving plate (5). A T-shaped slider (16) is slidably connected inside each T-shaped groove (20). The bottom surface of each T-shaped slider (16) is fixedly connected to the upper surface of the clamping plate (18). The ends of the two force springs (17) that are close to each other are fixedly connected to the sides of the two clamping plates (18) that are far apart from each other. The controller (25) is electrically connected to the first stepper motor (24), the second stepper motor (9), the first test head (7), and the second test head (11) through wires.