An automated testing device for electrical equipment electronic connectors

Abstract

The application relates to the technical field of connector testing devices, and discloses an automatic testing device for electronic connectors of electrical equipment, which comprises a testing platform, a female connector and a male connector. Two supports are fixedly arranged on the upper surface of the testing platform, a detection table is rotatably arranged between the two supports, and a plug-in and pull-out testing assembly for plug-in and pull-out operation of the female connector and the male connector is arranged on the detection table. The plug-in and pull-out testing assembly and an underwater vibration testing assembly are integrated, repeated plug-in and pull-out abrasion simulation can be completed, the connector is immersed in water, multi-directional vibration excitation is applied through a multi-axis vibration table, a real leakage scene of micro-motion of the connector during operation of aviation and vehicle-mounted equipment is restored, the problem that a traditional rigid clamping device cannot simulate a vibration water seepage working condition and the deviation between a test result and actual use is large is solved, and the sealing durability performance of the connector in a vibration water environment can be accurately evaluated.

Description

Technical Field

[0001] This invention relates to the field of connector testing equipment technology, specifically to an automated testing device for electronic connectors of electrical equipment. Background Technology

[0002] Connectors are fundamental interconnecting components in electrical equipment that enable the transmission of electrical energy and signals. They can be categorized in various ways according to their structural form, with rectangular connectors being an important type. Rectangular connectors are approximately rectangular in shape, featuring rectangular mating surfaces. They are multi-contact pair low-frequency connectors, and their rectangular cross-section facilitates high-density arrangement of the contact pairs. They come in a wide variety of specifications and have a broad range of applications.

[0003] Rectangular connectors mainly consist of female and male connectors. The male connector has an array of pins, and the female connector has a matching array of sockets. Electrical connection is achieved by inserting the pins and sockets to complete the transmission of power and signals. Rectangular connectors are widely used in aviation, aerospace and other equipment fields. Under harsh working conditions, they have high requirements for waterproof and dustproof sealing performance. The sealing performance directly affects the reliability and service life of the equipment. Therefore, finished connectors need to undergo sealing performance testing.

[0004] During frequent insertion and removal, the mating parts of rectangular connectors are prone to wear and cumulative contact deformation, which leads to a decrease in sealing performance or even failure. Traditional testing methods have low automation levels and poor testing efficiency and consistency. Therefore, there is an urgent need to develop automated testing devices for electrical equipment electronic connectors to achieve automated testing of connector sealing performance.

[0005] There are already relevant solutions for specialized devices for testing the waterproof seal of rectangular connectors, such as a rectangular connector connection testing device disclosed in CN118011282B. This solution is equipped with a test water tank, a lifting mechanism, a translation frame and a flipping frame, and a fixed clamp group and a mating clamp group to clamp and position the rectangular connectors. It can complete the immersion seal test in batches, and can also realize the temperature change waterproof test and the waterproof test after insertion and removal fatigue. By relying on translation and flipping, the connector as a whole is stirred by water, which enhances the flushing effect of water flow on the sealing surface.

[0006] However, the existing devices have significant limitations: they rigidly lock and fix the male and female connectors of the rectangular connector using clamps and elastic sleeves, ensuring no relative displacement or slight wobbling during immersion. This only simulates the overall impact of water flow on the equipment and cannot reproduce the micro-movements and gap opening / closing phenomena caused by vibration and bumps during equipment operation. In actual aviation, vehicle, and marine equipment operation, continuous vibration causes slight reciprocating wobbling of the rectangular connector's male and female connectors, leading to repeated compression and loosening of the sealing gaskets. This allows moisture to more easily seep in along the mating gap, a key cause of on-site seal failure. Existing testing devices rigidly clamp the connector throughout the process, completely avoiding the wobbling conditions at the mating interface. The test conditions deviate significantly from the actual usage environment, and the test results cannot accurately reflect the sealing durability performance of the connector under vibration and wobbling conditions, resulting in insufficient test evaluation accuracy. Summary of the Invention

[0007] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes an automated testing device for electronic connectors of electrical equipment.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an automated testing device for electronic connectors of electrical equipment, comprising a testing platform, a female connector, and a male connector. Supports are fixedly mounted on both sides of the upper surface of the testing platform, and a testing table is rotatably mounted between the two supports. The testing table is equipped with a plugging and unplugging testing assembly for performing plugging and unplugging operations on the female and male connectors. A water tank is positioned below the plugging and unplugging testing assembly, and a vibration testing assembly is provided within the water tank for applying vibration to the connector immersed in the water. By adopting the above technical solution, this device can first connect the connector to the signal path and place it on the test platform. Relying on the push-pull mechanism, it can perform multiple reciprocating insertion and removal to simulate the actual frequent insertion and removal conditions. After completing the insertion and removal durability test, the positive connector is clamped by the fixture, and the test platform is flipped to immerse the connector in the water tank. The water leakage situation is initially judged by the circuit continuity and short circuit. Then, the multi-axis vibration table in the water tank is used to drive the underwater connector to apply multi-axis vibration excitation, which restores the real working condition of the connector micro-movement and repeated squeezing and loosening of the sealing gasket caused by the vibration and bump of the equipment operation. The sealing durability performance of the connector in the vibration coupled water environment is accurately assessed.

[0009] The insertion and removal test assembly includes a push-pull mechanism for driving the male connector to reciprocate to achieve repeated insertion and removal. The push-pull mechanism is provided with a clamp for holding the male connector. The vibration testing assembly includes a multi-axis vibration table, and an elastic sealing membrane is fixed between the outer edge of the multi-axis vibration table and the water tank.

[0010] Preferably, the wire harness connector ends of the female connector and the male connector are respectively threaded with threaded caps, and limit grooves are respectively opened on both sides of the threaded caps. A spraying machine is provided on one side of the test platform, and the spraying machine is used to spray a water-sensitive color-changing coating on the insertion sealing surface of the male connector.

[0011] Preferably, the push-pull mechanism includes an electric push cylinder 1 mounted on the testing platform, the drive end of the electric push cylinder 1 is fixedly connected to a mounting frame 1, a mounting frame 2 fixedly connected to the testing platform is provided on one side of the mounting frame 1, and two sets of clamping plates 1 are fixedly provided on the surfaces of the mounting frame 1 and the mounting frame 2 respectively.

[0012] Preferably, the multi-axis vibration table has an opening at its center, and a flexible hose and a piston cylinder are fixedly installed below the opening from top to bottom. The piston cylinder is fixedly connected to the test platform. An electric push cylinder II is fixedly installed at the bottom of the piston cylinder. A piston plate is fixedly installed at the drive end of the electric push cylinder II. Several flow holes are opened on the surface of the piston plate, and a one-way valve is fixedly installed in the flow holes. An electromagnetic valve end is fixedly installed at the bottom of the piston cylinder.

[0013] Preferably, the test platform is provided with a connecting component, which includes two sets of soft ropes fixedly connected to the multi-axis vibration table and two sets of electric slides fixedly connected to the test platform. The top end of the soft rope is fixed with a guide rod, and the surface of the threaded cap has a through hole for the guide rod to pass through.

[0014] Preferably, an upper electric push cylinder and a lower electric push cylinder are respectively provided on both sides of the guide rod from top to bottom. The driving ends of the upper electric push cylinder and the lower electric push cylinder are respectively fixed with arc-shaped clamps. The slider of the electric slide table is fixed with a U-shaped connector. The two connectors are respectively fixedly connected to the upper electric push cylinder and the lower electric push cylinder on the outside of the two guide rods.

[0015] Preferably, the test platform is equipped with a drying component, which dries the connector in the water tank after the test is completed.

[0016] Preferably, a detection component is provided above the test platform, which is used to identify coating changes on the sealing mating surface of the positive connector after testing.

[0017] Preferably, a motor is fixedly mounted on the upper side wall of one of the brackets, the drive end of the motor passes through the bracket and is fixedly connected to one end of the testing platform, and fixed ears are rotatably connected to both sides of one end of the electric push cylinder through a shaft, the fixed ears being fixedly connected to the bracket, and a motor is fixedly mounted on the surface of one of the fixed ears, the drive end of the motor being fixedly connected to the shaft of the electric push cylinder.

[0018] Preferably, the clamp includes a connecting frame fixedly installed on both sides of the mounting frame, and an electric push cylinder is fixedly provided on the surface of the connecting frame.

[0019] This invention provides an automated testing device for electronic connectors in electrical equipment. It offers the following advantages: 1. This invention integrates a plug-in / plug-out testing component and an underwater vibration testing component. It can first simulate the wear of repeated plugging and unplugging of the connector, and then immerse the connector in water and apply multi-directional vibration excitation through a multi-axis vibration table to restore the real leakage scenario of connector micro-movement during operation of aviation and vehicle equipment. This solves the problem that traditional rigid clamping equipment cannot simulate vibration and water leakage conditions and the test results deviate greatly from actual use. It can accurately evaluate the sealing durability performance of the connector in a vibrating water environment.

[0020] 2. The equipment of this invention integrates a complete set of automated mechanisms for automatic spraying of water-sensitive color-changing coating, underwater vibration transfer, drying, and visual recognition for leak detection. It supports two detection modes: power-on short circuit detection and color-changing coating imaging to locate leak points, and is suitable for semi-finished samples without conductive circuits. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the insertion and removal test assembly structure of the present invention; Figure 3 This is a schematic diagram of the vibration testing assembly structure of the present invention; Figure 4 This is a schematic diagram of the female connector and male connector structure of the present invention; Figure 5 This is a schematic diagram of the push-pull mechanism and clamp structure of the present invention; Figure 6 This is a schematic diagram of the connecting component structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A; Figure 8 This is another structural schematic diagram of the vibration testing component of the present invention; Figure 9 This is a schematic diagram of the drying component structure of the present invention; Figure 10 This is a schematic diagram of the detection component structure of the present invention.

[0022] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0023] The components include: 1. Test platform; 2. Negative connector; 3. Positive connector; 5. Support; 6. Testing station; 7. Insertion / removal test assembly. 71. Push-pull mechanism; 7101. Electric push cylinder one; 7102. Mounting bracket one; 7103. Clamping plate one; 7104. Mounting bracket two; 72. Fixture; 721. Connecting frame; 722. Electric push cylinder five; 8. Pool; 9. Vibration testing assembly; 901. Multi-axis vibration table; 902. Elastic sealing diaphragm; 903. Hoses; 904. Piston cylinder; 905. Electric pusher cylinder II; 906. Piston plate; 907. Check valve; 908. Solenoid valve end; 10. Threaded cap; 11. Limiting groove; 12. Connecting assembly; 1201. Soft rope; 1202. Guide rod; 1203. Upper electric push cylinder; 1204. Lower electric push cylinder; 1205. Clamping plate; 1206. Electric slide table one; 1207. Connecting parts; 13. Drying assembly; 1301. Electric pusher cylinder three; 1304. Housing; 1305. Air inlet; 1306. Air outlet; 1307. Pressure relief valve; 1308. Push rod; 14. Detection components; 1401. Electric slide table II; 1402. Frame; 1403. Vision recognition module; 1404. Electric push cylinder IV; 1405. Card plate II; 15. Motor 1; 16. Fixing lug; 17. Motor 2. Detailed Implementation

[0024] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1, please refer to the appendix. Figure 1 - Appendix Figure 2This invention provides an automated testing device for electronic connectors of electrical equipment, including a testing platform 1, a female connector 2, and a male connector 3. Both the female connector 2 and the male connector 3 are equipped with wire harness connectors to form a connector, connecting wire harnesses. Once a circuit is established, electrical signals are transmitted through the wire harnesses. Supports 5 are fixedly mounted on both sides of the upper surface of the testing platform 1, and a testing table 6 is rotatably mounted between the two supports 5. Insertion / removal testing components 7 are respectively mounted above and below the testing table 6. A water tank 8 is located below the insertion / removal testing components 7 and is fixedly connected to the testing platform 1. A vibration testing component 9 is installed inside the water tank 8. The insertion / removal testing component 7 includes a push-pull mechanism 71. The push-pull mechanism 71 is located... The test platform 6 drives the negative connector 2 and positive connector 3 to repeatedly insert and withdraw. The push-pull mechanism 71 is equipped with a clamp 72 for holding the positive connector 3. The vibration test assembly 9 includes a multi-axis vibration table 901. An elastic sealing membrane 902 is fixed between the outer edge of the multi-axis vibration table 901 and the water pool 8. The elastic sealing membrane 902 connects the inner wall of the water pool 8 and the outer wall of the multi-axis vibration table 901, blocking the water above. It can deform when the multi-axis vibration table 901 is tilted. The multi-axis vibration table 901 includes a table body and multiple electric push rods that are distributed in a ring at equal intervals. The two ends of the electric push rods are respectively hinged to the table body and the test platform 1. The vibration mode of the multi-axis vibration table 901 is the prior art and will not be described in detail here.

[0026] Specifically, before testing, the connectors are assembled into the test signal circuit via wire harnesses. The wire harness connector of the male connector 3 can be connected to the signal transmitting end, while the wire harness connector of the female connector 2 can be connected to the signal receiving end, maintaining a connection path. The connectors are placed on the testing platform 6, and the insertion / removal testing assembly 7 performs the test. The push-pull mechanism 71 drives the female connector 2 and the male connector 3 to repeatedly insert and remove, simulating the sealing performance of the connector after frequent insertion and removal. After the test, the male connector 3 is clamped by the clamp 72. After flipping the connector face down on the flipping testing platform 6, the clamped male connector 3 is placed in the water tank 8 to check for short circuits. If there is no short circuit, the vibration testing assembly 9 performs the test. The multi-axis vibration table 901 drives the connector to vibrate in the water, testing the sealing durability of the connector under vibration and shaking conditions. The insertion / removal testing assembly 7 on the testing platform 6 can also perform insertion / removal testing on another set of connectors. Pull-out test: This device can first connect the connector to the signal path and place it on the test platform 6. Relying on the push-pull mechanism 71, it can perform multiple reciprocating insertion and removal to simulate the actual frequent insertion and removal conditions. After completing the insertion and removal durability test, the positive connector 3 is clamped by the clamp 72, and the test platform 6 is flipped to immerse the connector in the water tank 8. The leakage situation is initially judged by the circuit continuity and short circuit. Then, the multi-axis vibration table 901 in the water tank 8 drives the underwater connector to apply multi-axis vibration excitation, which restores the real working condition of the connector micro-movement and repeated squeezing and loosening of the sealing gasket caused by the vibration and bump of the equipment operation. It accurately assesses the sealing durability performance of the connector in the vibration coupled water environment. At the same time, the test platform 6 can simultaneously carry two sets of insertion and removal test components 7 to realize the parallel operation of one set of underwater vibration test of connector and the other set of insertion and removal fatigue test of connector, which greatly improves the overall testing efficiency and makes up for the shortcomings of traditional rigid clamping test equipment that cannot simulate the underwater vibration micro-movement leakage scenario of connector, the large deviation between the test conditions and actual use, and the insufficient evaluation accuracy.

[0027] Example 2, in conjunction with Example 1, please refer to the appendix. Figure 4 The wire harness connector ends of the female connector 2 and the male connector 3 are respectively threaded with threaded caps 10. The threaded caps 10 can be prevented from loosening by adding a locking washer, or by using a double nut to lock the nuts and bolts together to prevent loosening during vibration testing. Limiting grooves 11 are opened on both sides of the threaded caps 10. A spraying machine (not shown in the figure) is set on one side of the test platform 1. The spraying machine is used to spray a water-sensitive color-changing coating on the insertion sealing surface of the male connector 3. The coating can be made of water-sensitive color-changing ink. Insertion and removal tests are performed first, and then the coating is applied to avoid wear of the coating during testing.

[0028] Specifically, unlike Embodiment 1, this embodiment does not detect water leakage and short circuits through a test signal circuit. Instead, before testing, the threaded cap 10 is connected to the wire harness connector ends of the female connector 2 and the male connector 3 for sealing. Then, the insertion and removal test assembly 7 is used for insertion and removal testing. After insertion and removal, a water-sensitive color-changing coating is sprayed onto the insertion sealing surface of the male connector 3 using a spraying machine. Then, it is immersed in a water tank 8 for testing. The insertion and removal test assembly 7 and the vibration test assembly 9 can be performed sequentially or separately. Finally, after drying the water on the surface of the connector, the male connector 3 is opened. The color change of the coating on the insertion sealing surface of the male connector 3 can reflect the sealing effect of the connector. Compared to the method of determining leakage by checking the continuity of the power-on detection circuit, the solution of applying a rain-sensitive color-changing coating inside the connector and relying on visual observation of leakage has multiple advantages: First, it eliminates the need to build supporting signal test circuits, wiring harnesses, and continuity monitoring equipment, saving the steps of sample wiring and circuit debugging, greatly simplifying the equipment structure and pre-test preparation process, and reducing tooling and electrical support costs; Second, it can accurately locate minute leakage points. The power-on method can only determine whether the overall system has failed due to water ingress, but cannot distinguish between minor water seepage at the sealing surface and leakage at the wiring harness end. The color-changing coating can intuitively show the water seepage path, leakage point location, and water seepage level, making it easy to accurately trace the root cause of connector sealing failure; Third, it is suitable for sampling inspection of semi-finished connectors that are not powered on and have no conductive circuit, and is not limited by whether the sample has a complete conductive path, expanding the applicable testing scenarios; Fourth, there is no risk of short circuits or water damage to the connector sample, and the electrical components of the tested device will not be damaged due to water leakage. After testing, the sample can be reused for other performance verifications, reducing sample loss.

[0029] Please see the appendix Figure 3 - Appendix Figure 5 The push-pull mechanism 71 includes an electric push cylinder 7101 mounted on the testing table 6. The drive end of the electric push cylinder 7101 is fixedly connected to a mounting bracket 7102. A mounting bracket 7104 fixedly connected to the testing table 6 is provided on one side of the mounting bracket 7102. Two sets of clamping plates 7103 are fixedly mounted on the surfaces of the mounting bracket 7102 and the mounting bracket 7104, respectively.

[0030] Specifically, when placing the connector, the connector is first inserted, and then the electric push cylinder 7101 drives the mounting component 1 to move, so that the spacing between the clamping plates 7103 on the surfaces of the mounting bracket 7102 and the mounting bracket 7104 is the same as the spacing between the two ends of the connector. Then, the limiting groove 11 is inserted into the clamping plate 7103. The electric push cylinder 7101 reciprocates and extends, driving the male connector 3, which is clamped by the clamping plate 7103 on the mounting bracket 7102, to reciprocate and cooperate with the clamping plate on the connecting plate 2 and the clamped female connector 2 to perform insertion and removal tests.

[0031] Please see the appendix Figure 8A hole is opened at the center of the multi-axis vibration table 901. A flexible hose 903 and a piston cylinder 904 are fixedly installed below the hole from top to bottom. The piston cylinder 904 is fixedly connected to the test platform 1. An electric push cylinder 905 is fixedly installed at the bottom of the piston cylinder 904. A piston plate 906 is fixedly installed at the drive end of the electric push cylinder 905. Several flow holes are opened on the surface of the piston plate 906. A one-way valve 907 is fixedly installed in the flow holes. A solenoid valve end 908 is fixedly installed at the bottom of the piston cylinder 904.

[0032] Specifically, the hose 903 deforms synchronously as the multi-axis vibration table 901 moves to prevent liquid leakage. The electric pusher cylinder 905 drives the piston plate 906 to move within the piston cylinder 904, causing water in the water tank 8 to flow within the piston cylinder 904. When water needs to be delivered to the inside of the water tank 8, the piston plate 906 moves downwards, and the liquid in the piston cylinder 904 flows upwards through the flow hole and opens the one-way valve 907. When the piston plate 906 moves to the bottom of the cylinder, the solenoid valve 908 opens, allowing external airflow. Water enters the piston cylinder 904, and then the piston plate 906 moves upward to the upper region of the piston cylinder 904 to squeeze water into the water tank 8. When drying the connector in the water tank 8, the solenoid valve end 908 is closed, and the piston plate 906 moves above the multi-axis vibration table 901, so that the water flows into the piston cylinder 904, thereby separating the connector from the water phase for drying. Then the piston plate 906 descends into the piston cylinder 904, thereby isolating the piston cylinder 904 and preventing the water from evaporating due to the heat flow during drying.

[0033] Please see the appendix Figure 6 - Appendix Figure 7 The test platform 1 is equipped with a connecting component 12, which includes two sets of inelastic soft ropes 1201 fixedly connected to the multi-axis vibration table 901 and two sets of electric slides 1206 fixedly connected to the test platform 1. The top end of the soft rope 1201 is fixedly provided with a guide rod 1202. The surface of the threaded cap 10 has a through hole for the guide rod 1202 to pass through. The upper and lower ends of the through hole can be provided with horn grooves so that they can connect with the guide rod 1202 when rising along the soft rope 1201. The two sides of the guide rod 1202 are respectively provided with an upper electric push cylinder 1203 and a lower electric push cylinder 1204 from top to bottom. The driving ends of the upper electric push cylinder 1203 and the lower electric push cylinder 1204 are respectively fixedly provided with arc-shaped clamps 1205. The slider of the electric slide 1206 is fixedly provided with a U-shaped connector 1207. The two connectors 1207 are respectively fixedly connected to the upper electric push cylinder 1203 and the lower electric push cylinder 1204 on the outside of the two guide rods 1202.

[0034] Specifically, when the connector rotates downwards, it is first clamped and fixed by the clamp 72. The operation of the upper electric push cylinder 1203 and the lower electric push cylinder 1204 causes the clamping plate 1205 to clamp the guide rod 1202. The electric slide 1206 lowers the guide rod 1202 below the connector to avoid motion interference with the rotating detection table 6. After the connector is facing downwards, the upper electric push cylinder 1203 retracts, and the electric slide 1206 drives the guide rod 1202 to rise and pass through the through hole. Then, the clamp 72 releases its grip, causing the threaded cap 10 to slide down and abut against the clamping plate 1205 connected to the lower electric push cylinder 1204. At this time, the upper electric push cylinder 1203 extends again to clamp the guide rod 1202, and the slider of the electric slide 1206 slides downwards to near the water tank 8. The lower electric push cylinder 1204 retracts, causing the threaded cap 10 to pass through the guide rod 1202 and the soft rope 12. 01. A short drop test is conducted in pool 8. After the test, the electric slide 1206 drives the guide rod 1202 to the top and straightens the soft rope 1201 to push the loose connector to re-insert. The electric push cylinder 905 extends and pushes the connector to move upward along the vertical soft rope 1201 and guide rod 1202 to reset. The clamp 72 then holds the connector, allowing it to move between the vibration test assembly 9 and the insertion / removal test assembly 7. This facilitates unidirectional insertion / removal or vibration testing of the connector, or sequential insertion / removal and vibration testing. During vibration testing, the electric slide 1206 operates to pull the deformation range of the soft rope 1201 to limit one end of the connector, simulating the sealing effect when the vibration area of ​​one end of the connector is limited by the length of the wire harness.

[0035] Please see the appendix Figure 9 The test platform 1 is equipped with a drying assembly 13. The drying assembly 13 includes two electric push cylinders 1301 located on both sides of the water tank 8 and fixedly connected to the test platform 1, and a pressure relief valve 1307 set on the upper side of the piston cylinder 904. The drive end of the electric push cylinder 1301 is fixed with a hollow shell 1304. The top of the shell 1304 is provided with an air inlet 1305. Several air outlets 1306 are opened inside the shell 1304. The top of the piston plate 906 is fixed with a push rod 1308. The air inlet 1305 is connected to the dryer through a pipe.

[0036] Specifically, after the test is completed, when it is necessary to dry the surface moisture of the connector, the liquid in the water tank 8 is first drained. Then, the electric push cylinder 1301 extends and pushes the housing 1304 against the outer wall of the water tank 8 to form a closure. Heat flow is input into the housing 1304 through the dryer. The heat flow flows to the connector through the air outlet 1306 for drying. At this time, the piston plate 906 descends to below the pressure relief valve 1307 and lifts the bottom of the connector through the push rod 1308, which helps to dry the bottom area of ​​the connector. At the same time, after the air pressure inside the housing 1304 and the water tank 8 reaches a certain critical value, the pressure relief valve 1307 is pushed open, so that the airflow can carry the moisture out smoothly.

[0037] Please see the appendix Figure 2 One of the brackets 5 has a motor 15 fixedly mounted on its upper side wall. The drive end of the motor 15 passes through the bracket 5 and is fixedly connected to one end of the testing table 6. The two sides of one end of the electric push cylinder 7101 are respectively connected to the fixing ears 16 by a shaft. The fixing ears 16 are fixedly connected to the bracket 5. One of the fixing ears 16 has a motor 2 17 fixedly mounted on its surface. The drive end of the motor 2 17 passes through the fixing ear 16 and is fixedly connected to the shaft of the electric push cylinder 7101.

[0038] Specifically, the position of the two sets of plug-in test components 7 is adjusted by rotating the test platform 6 driven by motor 15, and the position of the electric push cylinder 7101 driven by motor 217 is adjusted so that when the electric push cylinder 7101 rotates vertically upward, the positive connector 3 is vertically upward to the spraying machine for spraying.

[0039] Please see the appendix Figure 10 A detection component 14 is installed above the test platform 1. The detection component 14 includes an electric slide table 1401 fixed above the test platform 1. A square frame 1402 is fixed at the slider of the electric slide table 1401. Several vision recognition modules 1403 are fixed on the inner wall of the frame 1402. Electric cylinders 1404 are symmetrically fixed at the bottom of the frame 1402. A card plate 1405 is fixed at the drive end of the electric cylinders 1404. The vision recognition module 1403 adopts an industrial camera, which can collect micron-level discoloration marks on the connector sealing surface. The vision recognition module 1403 can be matched with an industrial control system. The industrial control system has a built-in multi-level standard color difference image library. Based on the image segmentation algorithm, it automatically identifies the leakage point, calculates the discoloration area, and judges the sealing status in a graded manner. The images and test parameters are digitally stored throughout the process, eliminating the subjective error caused by manual observation and accurately tracing the root cause of connector sealing failure.

[0040] Specifically, after the connector is tested and dried in water, it is reset by the connecting assembly 12 and clamped and fixed by the fixture 72. Then, motor 15 drives electric cylinder 7101 to rotate downwards vertically. Subsequently, electric slide 1401 drives frame 1402 to rise, causing clamping plate 1405 to rise to the limiting groove 11 on the female connector 2 side. Electric cylinder 1404 extends, causing clamping plate 1405 to insert into the limiting groove 11. Then, electric slide 1401 drives frame 1402 to descend, pulling female connector 2 away from male connector 3, thus allowing the view... The visual recognition module 1403 descends to the mating sealing surface of the male plug. The visual recognition module 1403 identifies the discoloration of the coating on the mating sealing surface. The visual recognition module 1403 collects complete image data of the sealing surface. The system automatically compares the data with a standard non-leakage color card to accurately identify the discolored area of ​​the coating, the leakage point and the amount of water seepage. It can intuitively determine the location and degree of seal failure. The entire process does not require manual disassembly of the connector or manual interpretation by the naked eye, reducing human observation errors. At the same time, the image detection data is retained to facilitate subsequent tracing of the cause of connector seal failure, realizing automated and digital seal performance testing.

[0041] Please see the appendix Figure 5 The clamp 72 includes a connecting frame 721 fixedly installed on both sides of the mounting frame 7102, and an electric push cylinder 722 is fixedly mounted on the surface of the connecting frame 721.

[0042] Specifically, the electric push cylinder 722 moves to press against the positive connector 3 for clamping and fixing.

[0043] Working principle: First, the threaded caps 10 of the male and female connector harnesses are tightened and clamped to the push-pull mechanism 71 clamping plate 7103. The electric push cylinder 7101 reciprocates to complete the connector insertion and removal durability test. Then, the motor 17 drives the electric push cylinder 7101 to flip so that the sealing surface of the male connector 3 faces upward. The sprayer sprays a water-sensitive color-changing coating on the sealing surface. The motor 15 drives the test table 6 to flip and lower the connector. The guide rod 1202 of the connecting component 12 passes through the threaded cap 10 to lift the connector and send it into the water tank 8. The multi-axis vibration table 901 drives the underwater connector to vibrate in multiple directions to simulate real bumpy and water seepage conditions. After the test, the piston cylinder 904 drains the water from the tank. The drying component 13 surrounds the water tank 8 and introduces hot air to dry the connector. Finally, the connecting component 12 resets the connector. The test component 14 clamps the female connector 2 and pulls down to separate the male and female connectors. The visual recognition module 1403 collects the image of the sealing surface coating and automatically determines the leakage point and sealing performance of the connector based on the color change marks.

[0044] Those skilled in the art can connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the above-described specific embodiments. The electrical connection is completed by the sequential operation of each electrical component. The detailed connection methods are well-known technologies in the art. The above mainly introduces the working principle and process, and will not describe the electrical control.

[0045] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated testing device for electronic connectors of electrical equipment, comprising a testing platform (1), a female connector (2), and a male connector (3), characterized in that: The test platform (1) has brackets (5) fixed on both sides of its upper surface. A test platform (6) is rotatably arranged between the two brackets (5). The test platform (6) is equipped with a plugging and unplugging test assembly (7) for plugging and unplugging the female connector (2) and the male connector (3). A water tank (8) is arranged below the plugging and unplugging test assembly (7). A vibration test assembly (9) for applying vibration to the connector immersed in the water is arranged in the water tank (8). The insertion and removal test assembly (7) includes a push-pull mechanism (71), which is used to drive the male connector (3) to reciprocate to achieve repeated insertion and removal. The push-pull mechanism (71) is provided with a clamp (72) for holding the male connector (3). The vibration test assembly (9) includes a multi-axis vibration table (901), and an elastic sealing membrane (902) is fixed between the outer edge of the multi-axis vibration table (901) and the water tank (8).

2. The automated testing device for electronic connectors of electrical equipment according to claim 1, characterized in that: The wire harness connector ends of the female connector (2) and the male connector (3) are respectively threaded with thread caps (10). Limiting grooves (11) are respectively opened on both sides of the thread caps (10). A spraying machine is provided on one side of the test platform (1). The spraying machine is used to spray a water-sensitive color-changing coating on the insertion sealing surface of the male connector (3).

3. The automated testing device for electronic connectors of electrical equipment according to claim 2, characterized in that: The push-pull mechanism (71) includes an electric push cylinder (7101) set on the testing table (6). The drive end of the electric push cylinder (7101) is fixedly connected to a mounting frame (7102). A mounting frame (7104) fixedly connected to the testing table (6) is provided on one side of the mounting frame (7102). Two sets of clamping plates (7103) are fixedly provided on the surfaces of the mounting frame (7102) and the mounting frame (7104).

4. The automated testing device for electronic connectors of electrical equipment according to claim 2, characterized in that: The multi-axis vibration table (901) has an opening at its center. A flexible hose (903) and a piston cylinder (904) are fixedly installed below the opening from top to bottom. The piston cylinder (904) is fixedly connected to the test platform (1). An electric push cylinder (905) is fixedly installed at the bottom of the piston cylinder (904). A piston plate (906) is fixedly installed at the drive end of the electric push cylinder (905). Several flow holes are opened on the surface of the piston plate (906), and a one-way valve (907) is fixedly installed in the flow holes. A solenoid valve end (908) is fixedly installed at the bottom of the piston cylinder (904).

5. An automated testing device for electronic connectors of electrical equipment according to claim 4, characterized in that: The test platform (1) is provided with a connecting component (12), which includes two sets of soft ropes (1201) fixedly connected to the multi-axis vibration table (901) and two sets of electric slides (1206) fixedly connected to the test platform (1). The top end of the soft rope (1201) is fixedly provided with a guide rod (1202), and the surface of the threaded cap (10) has a through hole for the guide rod (1202) to pass through.

6. The automated testing device for electronic connectors of electrical equipment according to claim 5, characterized in that: The guide rod (1202) has an upper electric push cylinder (1203) and a lower electric push cylinder (1204) respectively arranged from top to bottom on both sides. The driving ends of the upper electric push cylinder (1203) and the lower electric push cylinder (1204) are respectively fixed with arc-shaped clamps (1205). The slider of the electric slide table (1206) is fixed with a U-shaped connector (1207). The two connectors (1207) are respectively fixedly connected to the upper electric push cylinder (1203) and the lower electric push cylinder (1204) on the outside of the two guide rods (1202).

7. An automated testing device for electronic connectors of electrical equipment according to claim 4, characterized in that: The test platform (1) is equipped with a drying component (13), which dries the connector in the water tank (8) after the test is completed.

8. An automated testing device for electronic connectors of electrical equipment according to claim 1, characterized in that: A detection component (14) is provided above the test platform (1), which is used to identify the coating change on the sealing mating surface of the positive connector (3) after the test.

9. An automated testing device for electronic connectors of electrical equipment according to claim 3, characterized in that: One of the brackets (5) has a motor (15) fixedly mounted on its upper side wall. The drive end of the motor (15) passes through the bracket (5) and is fixedly connected to one end of the testing table (6). The two sides of one end of the electric push cylinder (7101) are respectively connected to fixed ears (16) by a shaft. The fixed ears (16) are fixedly connected to the bracket (5). One of the fixed ears (16) has a motor (17) fixedly mounted on its surface. The drive end of the motor (17) passes through the fixed ear (16) and is fixedly connected to the shaft of the electric push cylinder (7101).

10. An automated testing device for electronic connectors of electrical equipment according to claim 1, characterized in that: The clamp (72) includes a connecting frame (721) fixedly installed on both sides of the mounting frame (7102), and an electric push cylinder (722) is fixedly mounted on the surface of the connecting frame (721).

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