A wiring harness continuity test device

Abstract

The present invention relates to the technical field of wire harness continuity testing, and discloses a wire harness continuity testing device, comprising a machine base, a driving component and a testing component arranged on the machine base, an assembly component arranged on the testing component, and a positioning mechanism arranged on the assembly component; the testing component comprises an upper test base fixedly assembled on the driving component, and a lower test base fixedly assembled on the machine base. The wire harness continuity testing device can effectively ensure the consistency of each operation through this testing method, and ensure that the force, angle, speed and other parameters during the plugging and unplugging of the wire harness connector are always consistent. In traditional testing methods, manual plugging and unplugging operations are easily affected by human factors, resulting in unstable test results. The standardized operation method of the present application avoids human errors, improves the repeatability and reliability of test results, effectively reduces product quality risks, and improves the overall quality level of the product.

Description

Technical Field

[0001] The invention belongs to the technical field of wire harness continuity testing, and in particular relates to a wire harness continuity testing device. Background Art

[0002] As a key component for signal and power transmission between various electronic components, equipment or systems, the reliability of the wiring harness's conductivity is directly related to whether the entire electronic and electrical system can operate normally. Whether it is the complex wiring harness network connecting the engine control unit, sensors and actuators in automobile manufacturing, or the wiring harness components that ensure the stable operation of the flight control system and communication system in the aerospace field, or the wiring harness layout used for signal interaction and power supply between equipment on the industrial automation production line, the conductivity of the wiring harness is the basic element to ensure the functional integrity and safety of the system; once the wiring harness has a conductivity fault, such as open circuit, short circuit or poor contact, it may cause the electronic equipment to fail, the system to operate abnormally, and even cause serious safety accidents, resulting in huge economic losses and safety hazards; therefore, accurate and efficient conductivity testing of the wiring harness is an important link to ensure the quality of electronic and electrical products and improve system reliability, and it has a necessity and urgency that cannot be ignored.

[0003] At present, in the existing wire harness continuity test technology, the traditional wire harness continuity test device mainly relies on manual plugging and unplugging operations to achieve the connection and disconnection between the wire harness and the test equipment, and then complete the continuity detection process; however, this manual operation method has the following shortcomings and deficiencies. There are serious human error problems in manual plugging and unplugging operations, and it is difficult to ensure the consistency of each operation. Due to the differences in parameters such as force, angle, and speed when different operators plug and unplug the wire harness, these human factors can easily cause inaccuracy. Excessive plugging and unplugging force may cause damage to the wire harness interface, and too little force may cause poor contact. At the same time, the plugging and unplugging angle deviation may make the wire harness and the test terminal unable to be properly aligned, affecting the stability of signal transmission. Unstable plugging and unplugging speed may also interfere with the accuracy of the test results. These inaccurate operations will directly lead to deviations in the test results, and cannot truly reflect the conductivity performance of the wire harness, thereby reducing the reliability of the test results and increasing product quality risks. Therefore, there are deficiencies and cannot meet the manufacturer's detection and use needs. Therefore, it is necessary to further improve.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a wiring harness continuity test device is provided to achieve a more practical purpose. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a wiring harness continuity test device, which is achieved by the following specific technical means:

[0006] A wire harness continuity test device includes a base, a driving assembly and a testing assembly arranged on the base, an assembly assembly arranged on the testing assembly, and a positioning mechanism arranged on the assembly assembly;

[0007] The test assembly includes an upper test base fixedly assembled on the drive assembly, and a lower test base fixedly assembled on the machine base, and the lower test base is located directly below the upper test base;

[0008] The assembly component includes an assembly seat fixedly assembled on the upper test base, and the assembly seat is provided with a socket for inserting the wiring harness connector, the positioning mechanism includes a positioning shell fixedly assembled on the assembly seat, an adaptive elastic positioning component is arranged inside the positioning shell, a positioning plate for positioning the wiring harness interface is fixedly installed on one side of the adaptive elastic positioning component, a self-cleaning component is fixedly connected between the two sides of the adaptive elastic positioning component and the inner wall of the positioning shell, and a marking component is arranged on the upper and lower sides of the self-cleaning component, when the wiring harness interface is positioned by the positioning plate, the adaptive elastic positioning component can push the self-cleaning component to jet clean the wiring harness connector, and drive the marking component to test mark the wiring harness connector.

[0009] As a further description of the above technical solution: the upper test base drives the wiring harness connector to be inserted into the detection socket on the lower test base to realize the conductivity test of the wiring harness. This testing method can effectively ensure the consistency of each operation and ensure that the force, angle, speed and other parameters during the wiring harness connector plugging and unplugging process are always consistent. In traditional testing methods, manual plugging and unplugging operations are easily affected by human factors, resulting in unstable test results. The standardized operation method of this application avoids human errors, improves the repeatability and reliability of test results, effectively reduces product quality risks, and improves the overall quality level of the product.

[0010] Furthermore, the driving assembly includes a test frame fixedly mounted on the machine base, a driving cylinder fixedly mounted on the test frame, the bottom of the driving cylinder fixedly connected to the driving plate by a piston rod, and a stabilizing sleeve fixedly mounted on the test frame, a stabilizing slide rod slidably mounted on the inner side of the stabilizing sleeve, and the lower end of the stabilizing slide rod is fixedly connected to the driving plate.

[0011] As a further description of the above technical solution: the provision of a stabilizing sleeve and a stabilizing slide bar is helpful to improve the stability of the movement of the upper test base.

[0012] Furthermore, the assembly component also includes a limiting ring fixedly mounted on the assembly seat for limiting the wiring harness plug, an air inlet nozzle for absorbing external airflow is fixedly mounted on the upper side of the assembly seat, and an air nozzle for jet cleaning of the wiring harness connector is fixedly mounted on the lower side of the assembly seat.

[0013] As a further description of the above technical solution: the air flow ejected by the air nozzle is used to blow and clean the tiny dust and impurities attached to the surface of the wiring harness connector. The setting of the air inlet nozzle can absorb the external air flow, thereby ensuring that there is sufficient air flow in the cleaning cylinder for blowing and cleaning during the subsequent wiring harness conductivity test.

[0014] Furthermore, the adaptive elastic positioning assembly includes a fixed slide rail fixedly assembled inside the positioning shell, two symmetrical movable sliders are slidably mounted on the fixed slide rail, and movable blocks are fixedly mounted on the two movable sliders. An elastic plate is fixedly connected between the two movable blocks, and one side of the elastic plate is fixedly connected to the positioning plate;

[0015] Wherein, a first inclined block is fixedly installed on the opposite sides of the two movable blocks.

[0016] As a further description of the above technical solution: the elastic pressure of the elastic plate continuously acts on the wiring harness connector to clamp and position the wiring harness connector, thereby ensuring that the wiring harness connector is firmly in the best position to be tested, preparing for subsequent conductivity testing.

[0017] Furthermore, the self-cleaning assembly includes a cleaning cylinder fixedly mounted on the inner wall of the positioning shell, and an inner cavity is formed inside the cleaning cylinder, an elastic corrugated rubber ring is fixedly connected between the cleaning cylinder and the movable block, a movable rod is slidably mounted on the cleaning cylinder, an end of the movable rod away from the cleaning cylinder is fixedly connected to the movable block, and a first return spring is sleeved on the outer periphery of the movable rod;

[0018] A piston plate is provided in the inner cavity of the cleaning cylinder, one end of the movable rod extends into the inner cavity of the cleaning cylinder and is fixedly connected to the piston plate, a rubber ring is fixedly installed on the outer periphery of the piston plate, and the outer wall of the rubber ring is in close contact with the inner cavity wall of the cleaning cylinder.

[0019] As a further description of the above technical solution: This setting can be used to blow away the tiny dust and impurities attached to the surface of the wiring harness connector, effectively removing interference factors that may affect the test results, thereby improving the test accuracy of the wiring harness continuity test and improving the reliability of the test results.

[0020] Furthermore, a ventilation pipe is opened on the inner wall of the cleaning cylinder, and a one-way air inlet valve and a one-way air outlet valve are provided in the ventilation pipe. The one-way air inlet valve is fixedly connected to the air inlet nozzle through the ventilation pipe, and the one-way air outlet valve is fixedly connected to the air nozzle through the ventilation pipe.

[0021] As a further description of the above technical solution: the provision of a one-way air outlet valve and a one-way air inlet valve is conducive to the ejection and replenishment of the cleaning airflow in the cavity inside the cleaning cylinder.

[0022] Furthermore, the marking assembly includes a marking shell fixedly assembled on the inner wall of the positioning shell, a movable plate is slidably installed inside the marking shell, a marking rod is fixedly installed on one side of the movable plate, an end of the marking rod away from the movable plate extends to the outside of the marking shell and is fixedly connected to the marking component, and a second return spring is fixedly connected between the side of the movable plate away from the marking rod and the inner wall of the marking shell;

[0023] An open slot is provided on the marking shell, a linkage rod is fixedly installed on one side of the movable plate, a second inclined block is fixedly installed on one end of the linkage rod away from the movable plate, and the inclined surface of the second inclined block is in contact with the inclined surface of the first inclined block.

[0024] As a further description of the above technical solution: by moving the first inclined block, the second inclined block that is in contact with its inclined surface is pushed to move. While the second inclined block moves, the linkage rod is used to drive the movable plate to slide in the marking shell. At the same time, the marking rod pushes the marking component to move toward the wiring harness connector, and the reinforcement on the marking component is in contact with the outer wall of the wiring harness connector.

[0025] Furthermore, the marking component includes a marking plate fixedly mounted on the marking rod, the marking plate is provided with four symmetrically assembled reinforcements, and the marking plate is also fixedly mounted with a marking head for testing and marking the wiring harness connector.

[0026] As a further description of the above technical solution: through this setting, on the one hand, the reinforcement is used to realize the positioning and reinforcement of the wiring harness joint, further ensuring the stability of the wiring harness joint; on the other hand, the marking head can be driven to mark the wiring harness joint, which serves as a test mark and facilitates the subsequent inspection and random inspection.

[0027] Furthermore, the lower test base is provided with a detection socket for inserting a wiring harness connector to perform a continuity test.

[0028] As a further description of the above technical solution: the wiring harness connector at the bottom of the upper test base is inserted into the detection socket on the lower test base to achieve the conduction test of the wiring harness.

[0029] Furthermore, a control panel for test operation is provided on the front side of the machine base.

[0030] As a further description of the above technical solution: the setting of the control panel is conducive to controlling the device.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] 1. This wiring harness conductivity test device drives the wiring harness connector to be inserted into the detection socket on the lower test base through the upper test base to realize the conductivity test of the wiring harness. This test method can effectively ensure the consistency of each operation and ensure that the force, angle, speed and other parameters during the wiring harness connector plugging and unplugging process are always consistent. In traditional testing methods, manual plugging and unplugging operations are easily affected by human factors, resulting in unstable test results. The standardized operation method of this application avoids human errors, improves the repeatability and reliability of test results, effectively reduces product quality risks, and improves the overall quality level of the product.

[0033] 2. This wiring harness conductivity test device causes the elastic plate to produce elastic deformation based on the force when the positioning plate contacts the wiring harness connector, and uses the elastic pressure generated by the elastic deformation of the elastic plate to clamp and position the wiring harness connector. This positioning method can accurately fix the wiring harness connector in the optimal test position, avoiding test errors caused by position offset of the wiring harness connector. Compared with traditional manual positioning methods, the positioning method of this application is more precise and reliable, effectively reducing the deviation of test results caused by inaccurate positioning, improving the accuracy and stability of product quality inspection, and reducing the defective rate caused by positioning problems.

[0034] 3. During the wiring harness connector insertion process, this wiring harness continuity test device uses the airflow ejected from the air nozzle to blow away the tiny dust and impurities attached to the surface of the wiring harness connector. This setting can effectively avoid the possibility of poor contact of the wiring harness connector due to the influence of dust and impurities, thereby improving the accuracy of the test results of the wiring harness continuity test. The automatic cleaning function can timely remove these interference factors, ensure the cleanliness of the test environment, guarantee the reliability of the test results, reduce misjudgment and rework caused by poor contact, and improve production efficiency.

[0035] 4. This wiring harness continuity test device utilizes the reinforcement on the marking component to fit in contact with the outer wall of the wiring harness connector. On the one hand, it realizes the positioning and reinforcement of the wiring harness connector, further ensuring the stability of the wiring harness connector during the test; on the other hand, it drives the marking head to dot mark the wiring harness connector. The dot mark can serve as a test mark, which is convenient for subsequent inspection and random inspection. In the production process, a large number of wiring harnesses need to be tested for continuity. The marking can quickly identify the tested and untested wiring harnesses, and record the test results, thereby improving the efficiency and accuracy of production management. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 It shows a schematic diagram of the overall three-dimensional structure provided by an embodiment of the present invention;

[0038] Figure 2 A schematic structural diagram of a drive assembly according to an embodiment of the present invention is shown;

[0039] Figure 3 A schematic diagram of the installation structure of the assembly base and the air nozzle provided in an embodiment of the present invention is shown;

[0040] Figure 4 A schematic diagram of the installation structure of the assembly base and the positioning mechanism provided in an embodiment of the present invention is shown;

[0041] Figure 5 A schematic diagram of the installation structure of the assembly seat and the limiting ring provided in an embodiment of the present invention is shown;

[0042] Figure 6 The schematic diagram of the local structure of the positioning mechanism provided by the embodiment of the present invention is shown. Figure 1 ;

[0043] Figure 7 The schematic diagram of the local structure of the positioning mechanism provided by the embodiment of the present invention is shown. Figure 2 ;

[0044] Figure 8 It shows a schematic diagram of a partially deployed structure of a positioning mechanism provided in an embodiment of the present invention;

[0045] Figure 9 A schematic diagram of a partial structure of a self-cleaning component provided according to an embodiment of the present invention is shown;

[0046] Figure 10 A schematic diagram of the local structure of a marking component provided according to an embodiment of the present invention is shown.

[0047] Legend:

[0048] 10. Machine base; 11. Control panel;

[0049] 20. Drive assembly; 21. Test stand; 22. Drive cylinder; 23. Drive plate; 24. Stabilizing sleeve; 25. Stabilizing slide bar;

[0050] 30. Test assembly; 31. Upper test base; 32. Lower test base; 321. Test socket;

[0051] 40. Assembly component; 41. Assembly seat; 42. Limiting ring; 43. Air inlet nozzle; 44. Air nozzle;

[0052] 50. Positioning mechanism; 51. Positioning shell; 52. Adaptive elastic positioning assembly; 521. Fixed slide rail; 522. Movable slider; 523. Movable block; 524. Elastic plate; 525. First oblique block; 53. Positioning plate; 54. Self-cleaning assembly; 541. Cleaning cylinder; 5411. Ventilation pipe; 542. Elastic corrugated rubber ring; 543. Movable rod; 544. Piston plate; 545. Rubber ring; 546. First return spring; 547. One-way air inlet valve; 548. One-way air outlet valve; 549. Ventilation pipe; 55. Marking assembly; 551. Marking shell; 5511. Opening groove; 552. Movable plate; 553. Marking rod; 554. Marking component; 5541. Marking plate; 5542. Reinforcement member; 5543. Marking head; 555. Second return spring; 556. Linkage rod; 557. Second oblique block. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0054] See also Figures 1 to 10A wiring harness continuity test device includes a base 10, a drive assembly 20 and a test assembly 30 arranged on the base 10, an assembly assembly 40 arranged on the test assembly 30, and a positioning mechanism 50 arranged on the assembly assembly 40; the test assembly 30 includes an upper test base 31 fixedly assembled on the drive assembly 20, and a lower test base 32 fixedly assembled on the base 10, and the lower test base 32 is located directly below the upper test base 31; the assembly assembly 40 includes an assembly base 41 fixedly assembled on the upper test base 31, and the assembly base 41 is provided with a socket for inserting a wiring harness connector, and the positioning mechanism 50 The assembly includes a positioning shell 51 fixedly assembled on the assembly seat 41, an adaptive elastic positioning assembly 52 is provided inside the positioning shell 51, a positioning plate 53 for positioning the wiring harness interface is fixedly installed on one side of the adaptive elastic positioning assembly 52, and self-cleaning assemblies 54 are fixedly connected between the two sides of the adaptive elastic positioning assembly 52 and the inner wall of the positioning shell 51. Marking assemblies 55 are provided on the upper and lower sides of the self-cleaning assembly 54. When the wiring harness interface is positioned by the positioning plate 53, the adaptive elastic positioning assembly 52 can push the self-cleaning assembly 54 to jet clean the wiring harness connector and drive the marking assembly 55 to test the wiring harness connector.

[0055] The upper test base 31 drives the wiring harness connector to be inserted into the detection socket 321 on the lower test base 32 to realize the conductivity test of the wiring harness. This testing method can effectively ensure the consistency of each operation and ensure that the force, angle, speed and other parameters during the wiring harness connector plugging and unplugging process are always consistent. In traditional testing methods, manual plugging and unplugging operations are easily affected by human factors, resulting in unstable test results. The standardized operation method of this application avoids human errors, improves the repeatability and reliability of test results, effectively reduces product quality risks, and improves the overall quality level of the product.

[0056] See also Figure 1 A control panel 11 for test operation is provided on the front side of the machine base 10; the setting of the control panel 11 is conducive to controlling the equipment.

[0057] See also Figure 1 The lower test base 32 is provided with a detection socket 321 for inserting the wiring harness connector for conductivity testing; the wiring harness connector at the bottom of the upper test base 31 is inserted into the detection socket 321 on the lower test base 32 to achieve the conductivity test of the wiring harness.

[0058] See also Figures 1 to 2The driving assembly 20 includes a test frame 21 fixedly assembled on the machine base 10, and a driving cylinder 22 is fixedly assembled on the test frame 21. The bottom of the driving cylinder 22 is fixedly connected to the driving plate 23 by a piston rod. A stabilizing sleeve 24 is also fixedly assembled on the test frame 21, and a stabilizing slide bar 25 is slidably installed on the inner side of the stabilizing sleeve 24, and the lower end of the stabilizing slide bar 25 is fixedly connected to the driving plate 23; by driving the driving cylinder 22 to generate kinetic energy and start running, the piston rod of the driving cylinder 22 is used to push the driving plate 23 downward. During the downward movement of the driving plate 23, the upper test base 31 and the wiring harness connector that is firmly positioned are driven to move downward synchronously, and the wiring harness connector protruding from the bottom of the upper test base 31 is inserted into the detection socket 321 on the lower test base 32 to realize the conductivity test of the wiring harness, and the setting of the stabilizing sleeve 24 and the stabilizing slide bar 25 is conducive to improving the stability of the movement of the upper test base 31.

[0059] See also Figures 3 to 5 The assembly component 40 also includes a limiting ring 42 fixedly assembled on the assembly seat 41 for limiting the wiring harness plug, an air inlet nozzle 43 for absorbing external airflow is fixedly installed on the upper side of the assembly seat 41, and an air jet nozzle 44 for jet cleaning of the wiring harness connector is fixedly installed on the lower side of the assembly seat 41; the air jet nozzle 44 uses the ejected air flow to blow away the tiny dust and impurities attached to the surface of the wiring harness connector, and the setting of the air inlet nozzle 43 can absorb the external airflow, thereby ensuring that there is sufficient airflow in the cleaning cylinder 541 for blowing and cleaning during the subsequent wiring harness conductivity test.

[0060] See also Figures 6 to 8 The adaptive elastic positioning component 52 includes a fixed slide rail 521 fixedly assembled inside the positioning shell 51, and two symmetrical movable sliders 522 are slidably installed on the fixed slide rail 521, and movable blocks 523 are fixedly installed on the two movable sliders 522. An elastic plate 524 is fixedly connected between the two movable blocks 523, and one side of the elastic plate 524 is fixedly connected to the positioning plate 53; wherein, the two movable blocks 523 are fixedly installed with a first inclined block 525 on the opposite side; the elastic pressure of the elastic plate 524 continuously acts on the wiring harness connector, clamping and positioning the wiring harness connector, thereby ensuring that the wiring harness connector is firmly in the best position to be tested, and preparing for the subsequent conduction test.

[0061] See also Figures 7 to 9The self-cleaning assembly 54 includes a cleaning cylinder 541 fixedly assembled on the inner wall of the positioning shell 51, and an inner cavity is opened inside the cleaning cylinder 541, an elastic corrugated rubber ring 542 is fixedly connected between the cleaning cylinder 541 and the movable block 523, and a movable rod 543 is slidably installed on the cleaning cylinder 541, and the end of the movable rod 543 away from the cleaning cylinder 541 is fixedly connected to the movable block 523, and a first return spring 546 is sleeved on the outer periphery of the movable rod 543; a piston plate 544 is provided in the inner cavity of the cleaning cylinder 541, one end of the movable rod 543 extends to the inner cavity of the cleaning cylinder 541 and is fixedly connected to the piston plate 544, and the outer periphery of the piston plate 544 is fixed A rubber ring 545 is installed, and the outer wall of the rubber ring 545 is in contact with the inner cavity wall of the cleaning cylinder 541; the piston plate 544 is pushed to move in the inner cavity of the cleaning cylinder 541 by the movable rod 543, so that the piston plate 544 squeezes the airflow in the inner cavity of the cleaning cylinder 541, and the airflow is transmitted to the air nozzle 44 along the one-way air outlet valve 548 and the ventilation pipe 549. The air nozzle 44 sprays the airflow toward the wiring harness connector, so as to blow and clean the tiny dust and impurities attached to the surface of the wiring harness connector, effectively removing interference factors that may affect the test results, thereby improving the test accuracy of the wiring harness conductivity test, and at the same time improving the reliability of the test results.

[0062] See also Figure 9 A ventilation pipe 5411 is provided on the inner wall of the cleaning cylinder 541, and a one-way air inlet valve 547 and a one-way air outlet valve 548 are provided in the ventilation pipe 5411. The one-way air inlet valve 547 is fixedly connected to the air inlet nozzle 43 through the ventilation pipe 549, and the one-way air outlet valve 548 is fixedly connected to the air nozzle 44 through the ventilation pipe 549; the setting of the one-way air outlet valve 548 and the one-way air inlet valve 547 is conducive to the ejection and replenishment of the cleaning airflow in the cavity inside the cleaning cylinder 541.

[0063] See also Figures 7 to 10The marking assembly 55 includes a marking shell 551 fixedly assembled on the inner wall of the positioning shell 51, a movable plate 552 is slidably installed inside the marking shell 551, a marking rod 553 is fixedly installed on one side of the movable plate 552, the end of the marking rod 553 away from the movable plate 552 extends to the outside of the marking shell 551 and is fixedly connected to the marking component 554, and a second return spring 555 is fixedly connected between the side of the movable plate 552 away from the marking rod 553 and the inner wall of the marking shell 551; an opening groove 5511 is opened on the marking shell 551, and a linkage rod 553 is fixedly installed on one side of the movable plate 552. 56. A second inclined block 557 is fixedly installed on one end of the linkage rod 556 away from the movable plate 552. The inclined surface of the second inclined block 557 is in contact with the inclined surface of the first inclined block 525. The movement of the first inclined block 525 pushes the second inclined block 557, which is in contact with its inclined surface, to move. When the second inclined block 557 moves, the linkage rod 556 is used to drive the movable plate 552 to slide in the marking shell 551. At the same time, the marking rod 553 pushes the marking component 554 to move toward the wiring harness connector, and the reinforcement 5542 on the marking component 554 is in contact with the outer wall of the wiring harness connector.

[0064] See also Figure 10 The marking component 554 includes a marking plate 5541 fixedly assembled on the marking rod 553, and four symmetrically assembled reinforcements 5542 are provided on the marking plate 5541. A marking head 5543 for test marking the wiring harness connector is also fixedly installed on the marking plate 5541; through this arrangement, on the one hand, the reinforcement 5542 is used to realize the positioning and reinforcement of the wiring harness connector, further ensuring the stability of the wiring harness connector, and on the other hand, the marking head 5543 can be driven to mark the wiring harness connector, which serves as a test mark and is convenient for subsequent inspection and random inspection.

[0065] The specific usage and function of this embodiment are as follows:

[0066] Working principle: First, insert the wiring harness connector along the socket on the assembly seat 41. During the wiring harness connector insertion process, it will first come into contact with the positioning plate 53. As the wiring harness connector continues to advance, the two opposing positioning plates 53 move away from each other under the action of the contact force, and the positioning plate 53 moves toward the positioning shell 51 after being subjected to the force, and squeezes the elastic plate 524, causing the elastic plate 524 to produce elastic deformation. The elastically deformed elastic plate 524 then pushes the two movable blocks 523 away from each other. During the movement, the movable block 523 drives the movable slider 522 to slide on the fixed slide rail 521. The sliding of the movable slider 522 on the fixed slide rail 521 effectively improves the stability of the movement of the movable block 523, ensuring the smooth performance of the positioning action.

[0067] As the wiring harness connector is inserted deeper, the limiting ring 42 begins to limit the wiring harness connector, causing the wiring harness connector to partially protrude from the assembly seat 41 and the bottom of the upper test base 31. During this process, the elastic pressure of the elastic plate 524 continuously acts on the wiring harness connector, clamping and positioning the wiring harness connector, ensuring that the wiring harness connector is firmly in the optimal position to be tested, ready for the subsequent continuity test;

[0068] When the wiring harness connector is inserted and the two movable blocks 523 are driven away from each other, the movable block 523 squeezes the elastic corrugated rubber ring 542 at the same time. Since one end of the movable rod 543 is fixedly assembled on the movable block 523, the movable block 523 will drive the movable rod 543 to move synchronously when it moves, prompting the movable rod 543 to push the piston plate 544 to move in the inner cavity of the cleaning cylinder 541, so that the piston plate 544 squeezes the airflow in the inner cavity of the cleaning cylinder 541, and the airflow is transmitted to the air nozzle 44 along the one-way air outlet valve 548 and the vent pipe 549. The air nozzle 44 sprays the airflow toward the wiring harness connector, thereby blowing and cleaning the tiny dust and impurities attached to the surface of the wiring harness connector, effectively removing interference factors that may affect the test results, thereby improving the test accuracy of the wiring harness conductivity test, and at the same time improving the reliability of the test results;

[0069] When the wiring harness connector is unplugged after the test is completed, the elastic force of the first reset spring 546 drives the movable rod 543 and the piston plate 544 to reset, and the piston plate 544 moves in the opposite direction in the inner cavity of the cleaning cylinder 541. Under the action of negative pressure, the external air flow enters the inner cavity of the cleaning cylinder 541 through the air inlet nozzle 43 and the one-way air inlet valve 547, realizing automatic inflation, ensuring that there is sufficient air flow in the cleaning cylinder 541 for blowing and cleaning during the subsequent wiring harness conductivity test, so that the air nozzle 44 can automatically blow and clean as long as the wiring harness connector is inserted for the conductivity test positioning process;

[0070] In addition, when the wiring harness connector is inserted and the two movable blocks 523 are driven away from each other, the movable block 523 simultaneously drives the first inclined block 525 to move. As the first inclined block 525 moves, the second inclined block 557, which is in contact with its inclined surface, is pushed to move. When the second inclined block 557 moves, the linkage rod 556 is used to drive the movable plate 552 to slide in the marking shell 551. At the same time, the marking rod 553 pushes the marking component 554 to move toward the wiring harness connector. The reinforcing piece 5542 on the marking component 554 is in contact with the outer wall of the wiring harness connector. Through this arrangement, on the one hand, the reinforcing piece 5542 is used to realize the positioning and reinforcement of the wiring harness connector, further ensuring the stability of the wiring harness connector. On the other hand, the marking head 5543 can be driven to mark the wiring harness connector, which serves as a test mark and is convenient for subsequent inspection and random inspection.

[0071] When the wiring harness connector is positioned, the control panel 11 is operated to drive the driving cylinder 22 to generate kinetic energy and start running, and the piston rod of the driving cylinder 22 is used to push the driving plate 23 downward. During the downward movement of the driving plate 23, the upper test base 31 and the wiring harness connector that is firmly positioned are driven to move downward synchronously, and the wiring harness connector protruding from the bottom of the upper test base 31 is inserted into the detection socket 321 on the lower test base 32 to realize the conductivity test of the wiring harness. After the test is completed, the driving cylinder 22 is used to drive the upper test base 31 and the wiring harness connector to separate from the detection socket 321 and reset them. This testing method can effectively ensure the consistency of each operation, and ensure that the force, angle, speed and other parameters during the wiring harness connector plugging and unplugging process are always consistent, thereby further improving the reliability of the test results.

[0072] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A wiring harness continuity test device, comprising a base (10), a drive assembly (20) and a test assembly (30) disposed on the base (10), characterized in that: It also includes an assembly component (40) disposed on the test component (30), and a positioning mechanism (50) disposed on the assembly component (40); The test assembly (30) includes an upper test base (31) fixedly assembled on the drive assembly (20), and a lower test base (32) fixedly assembled on the machine base (10), and the lower test base (32) is located directly below the upper test base (31); The assembly component (40) includes an assembly seat (41) fixedly assembled on the upper test base (31), and a socket for inserting a wiring harness connector is provided on the assembly seat (41). The positioning mechanism (50) includes a positioning shell (51) fixedly assembled on the assembly seat (41), an adaptive elastic positioning component (52) is provided inside the positioning shell (51), a positioning plate (53) for positioning the wiring harness interface is fixedly installed on one side of the adaptive elastic positioning component (52), a self-cleaning component (54) is fixedly connected between the two sides of the adaptive elastic positioning component (52) and the inner wall of the positioning shell (51), and a marking component (55) is provided on the upper and lower sides of the self-cleaning component (54). When the wiring harness interface is positioned by the positioning plate (53), the adaptive elastic positioning component (52) can push the self-cleaning component (54) to perform jet cleaning on the wiring harness connector, and drive the marking component (55) to perform test marking on the wiring harness connector; The assembly component (40) further includes a limiting ring (42) fixedly mounted on the assembly seat (41) for limiting the position of the wiring harness plug, an air inlet nozzle (43) for absorbing external airflow is fixedly mounted on the upper side of the assembly seat (41), and an air jet nozzle (44) for jet cleaning the wiring harness connector is fixedly mounted on the lower side of the assembly seat (41); The adaptive elastic positioning assembly (52) includes a fixed slide rail (521) fixedly assembled inside the positioning shell (51), two symmetrical movable sliders (522) are slidably mounted on the fixed slide rail (521), and movable blocks (523) are fixedly mounted on the two movable sliders (522). An elastic plate (524) is fixedly connected between the two movable blocks (523), and one side of the elastic plate (524) is fixedly connected to the positioning plate (53); Wherein, a first inclined block (525) is fixedly installed on opposite sides of the two movable blocks (523); The self-cleaning assembly (54) includes a cleaning cylinder (541) fixedly mounted on the inner wall of the positioning shell (51), and an inner cavity is provided inside the cleaning cylinder (541), an elastic corrugated rubber ring (542) is fixedly connected between the cleaning cylinder (541) and the movable block (523), a movable rod (543) is slidably mounted on the cleaning cylinder (541), an end of the movable rod (543) away from the cleaning cylinder (541) is fixedly connected to the movable block (523), and a first return spring (546) is sleeved on the outer periphery of the movable rod (543); A piston plate (544) is provided in the inner cavity of the cleaning cylinder (541), one end of the movable rod (543) extends into the inner cavity of the cleaning cylinder (541) and is fixedly connected to the piston plate (544), a rubber ring (545) is fixedly installed on the outer periphery of the piston plate (544), and the outer wall of the rubber ring (545) is in close contact with the inner cavity wall of the cleaning cylinder (541); The marking assembly (55) includes a marking shell (551) fixedly mounted on the inner wall of the positioning shell (51), a movable plate (552) is slidably mounted inside the marking shell (551), a marking rod (553) is fixedly mounted on one side of the movable plate (552), an end of the marking rod (553) away from the movable plate (552) extends to the outside of the marking shell (551) and is fixedly connected to a marking component (554), and a second return spring (555) is fixedly connected between the side of the movable plate (552) away from the marking rod (553) and the inner wall of the marking shell (551); An opening slot (5511) is provided on the marking shell (551), a linkage rod (556) is fixedly mounted on one side of the movable plate (552), a second inclined block (557) is fixedly mounted on one end of the linkage rod (556) away from the movable plate (552), and the inclined surface of the second inclined block (557) is in contact with the inclined surface of the first inclined block (525); The marking component (554) comprises a marking plate (5541) fixedly mounted on a marking rod (553); four symmetrically mounted reinforcement members (5542) are provided on the marking plate (5541); and a marking head (5543) for testing and marking wiring harness connectors is also fixedly mounted on the marking plate (5541).

2. The wiring harness continuity test device according to claim 1, characterized in that: The driving assembly (20) includes a test frame (21) fixedly mounted on the machine base (10), a driving cylinder (22) fixedly mounted on the test frame (21), the bottom of the driving cylinder (22) is fixedly connected to a driving plate (23) by a piston rod, and a stabilizing sleeve (24) is also fixedly mounted on the test frame (21), a stabilizing slide bar (25) is slidably mounted on the inner side of the stabilizing sleeve (24), and the lower end of the stabilizing slide bar (25) is fixedly connected to the driving plate (23).

3. The wiring harness continuity test device according to claim 1, characterized in that: A ventilation pipe (5411) is provided on the inner wall of the cleaning cylinder (541), and a one-way air inlet valve (547) and a one-way air outlet valve (548) are provided in the ventilation pipe (5411). The one-way air inlet valve (547) is fixedly connected to the air inlet nozzle (43) via a ventilation pipe (549), and the one-way air outlet valve (548) is fixedly connected to the air nozzle (44) via the ventilation pipe (549).

4. The wiring harness continuity test device according to claim 1, characterized in that: The lower test base (32) is provided with a detection socket (321) for inserting a wiring harness connector to perform a continuity test.

5. The wiring harness continuity test device according to claim 1, characterized in that: A control panel (11) for test manipulation is provided on the front side of the machine base (10).

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