A clamping device for plug detection of an automobile connector system

Abstract

This invention relates to a clamping device for testing the insertion and removal of automotive connector systems. The device includes a multi-directional vibration table, comprising a worktable, rails, an arc-shaped boss, a turntable, a threaded rod, and a sliding plate. A rotating clamping mechanism is mounted on the sliding plate. This mechanism includes a lifting plate, a rotating seat, and a worm gear transmission mechanism. A rotation angle limiting mechanism is provided on one side of the lifting plate. A connector body is fixed on the rotating seat, and a connection harness is connected to the connector body. An insertion / removal force adjustment mechanism is installed on the rear side of the worktable to apply an adjustable upward pulling force. This invention achieves multi-directional vibration simulation through the combined motion of the sliding plate and the lifting plate, adjusts the clamping direction through the worm gear and rotating seat structure, effectively limits angle changes during vibration through the rotation angle limiting mechanism, and flexibly controls the magnitude of the pulling force through the insertion / removal force adjustment mechanism. This improves the simulation of the testing environment, the stability of the clamping, and the testing accuracy.

Description

Technical Field

[0001] This invention relates to the field of automotive connector testing technology, specifically a clamping device for testing the insertion and removal of automotive connector systems. Background Technology

[0002] With the continuous development of automotive electronics technology, various connectors and joint systems have been widely used in automotive internal electrical circuits. To ensure the reliability of the connector system under different operating conditions, it is usually necessary to perform insertion and removal tests on the automotive connector system to verify its durability, contact stability, and vibration resistance.

[0003] Existing automotive connector insertion / removal testing methods mostly employ manual clamping and insertion / removal, applying external insertion / removal force and supplementing with simple vibration simulation. However, this approach has several shortcomings. Firstly, existing testing devices often use fixed brackets to simply clamp the connector body, lacking flexible angle adjustment capabilities. This prevents the adjustment of the connector body's insertion / removal direction relative to the connecting harness according to actual operating conditions, leading to discrepancies between test results and actual usage environments. Secondly, vibration simulation mechanisms typically only achieve unidirectional vibration, making it difficult to apply dynamic loads simultaneously in both horizontal and vertical directions. This results in a limited testing scenario, failing to comprehensively simulate the complex vibration environment experienced by the connector system during actual vehicle operation.

[0004] Furthermore, in some existing devices, the angle of the clamping mechanism may change due to inertia during vibration, causing positional deviations during the detection process and affecting the accuracy of the insertion and extraction force. Existing technologies lack effective angle locking mechanisms, resulting in insufficient repeatability and reliability of the detection data. Moreover, in existing structures, the adjustment of the insertion and extraction force typically relies on an electronic control system, lacking a simple physical adjustment method, making operation complex and limiting adjustment accuracy. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a clamping device for testing the insertion and removal of automotive connector systems. This device enables flexible adjustment of the connector body direction, multi-directional vibration simulation, effective locking of the rotation angle, and adjustment of the insertion and removal force through a lever structure. This solves the aforementioned problems in existing technologies and improves the stability and accuracy of the testing process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A clamping device for testing the insertion and removal of an automotive connector system includes a multi-directional vibration table. The multi-directional vibration table includes a worktable fixed to the ground. Tracks are symmetrically arranged on the upper surface of the worktable. Slide plates are slidably installed on the surfaces of two of the track plates. Fixing bolts are vertically arranged at the four corners of the upper surface of the slide plates. A rotating clamping mechanism is installed above the slide plates. The rotating clamping mechanism is used to adjust the clamping direction. The rotating clamping mechanism includes a lifting plate that slides on the surfaces of four fixing bolts. A rotating seat is installed at the top center of the lifting plate. An installation hole is opened at the center of the surface of the rotating seat. A connector body is fixed inside the installation hole. A rotation angle limiting mechanism is provided on one side of the lifting plate; The connector body has a connecting wire harness inserted into its top. The multi-directional vibration table has an insertion / extraction force adjustment mechanism installed on its rear side of its upper surface. The insertion / extraction force adjustment mechanism is used to adjust the upward pull-out force of the connecting wire harness.

[0007] Furthermore, the workbench surface is provided with an arc-shaped boss, which is placed parallel between the two track bars. A turntable is rotatably mounted on one side of the workbench surface, and the bottom of the turntable is mounted on a motor. A groove is opened on one side of the upper surface of the turntable, and a threaded rod is rotatably mounted inside the groove. A moving block is screwed onto the surface of the threaded rod.

[0008] Furthermore, a connecting rod is hinged to the surface of the moving block, and the end of the connecting rod is hinged to the slide plate. A through groove is opened in the center of the surface of the slide plate, and the through groove is placed on the arc-shaped boss. A limit plate is installed on the top of the fixing bolt, and a first spring is sleeved on the surface of the fixing bolt. The first spring is placed between the limit plate and the lifting plate.

[0009] Furthermore, a fixing column is installed at the center of the bottom of the lifting plate, the fixing column passes through the through groove, and a roller is rotatably installed at the bottom of the fixing column, the roller contacting the surface of the arc-shaped boss.

[0010] Furthermore, a convex ring is provided at the center of the surface of the lifting plate, and a housing is provided laterally on one side of the convex ring. The rotating seat rotates inside the convex ring, and a worm gear ring is provided on the outer circular surface of the rotating seat. A worm is rotatably installed inside the housing, and the worm and the worm gear ring mesh with each other.

[0011] Furthermore, pressure plates are symmetrically mounted on the upper surface of the rotating seat by bolts, with the two pressure plates respectively placed on both sides of the mounting hole. The pressure plates are used to fix the joint body.

[0012] Furthermore, the rotation angle limiting mechanism includes a first gear plate fixed to one end of the housing and a slide rod that slides through the worm gear. The slide rod has symmetrically arranged protrusions on its surface, and the worm gear has symmetrically arranged grooves that match the protrusions inside. A second gear plate is provided at one end of the slide rod, and a knob is provided at the other end of the slide rod. The second gear plate is adapted to the first gear plate. A second spring is sleeved on the surface of the slide rod and is placed between the housing and the knob.

[0013] Furthermore, the insertion and extraction force adjustment mechanism includes a column fixed to the rear side of the workbench surface, a swing rod rotatably mounted on the top of the column, a telescopic rod slidably mounted on the front end of the swing rod, a fixed cylinder vertically arranged at the end of the telescopic rod, the connecting wire harness passing through the fixed cylinder, a locking bolt screwed onto the surface of the fixed cylinder, and the connecting wire harness being fixed to the fixed cylinder by the locking bolt.

[0014] Furthermore, a rotating head is installed at the rear end of the swing arm, a hanging rod is connected to the bottom of the rotating head, and a counterweight is installed below the surface of the hanging rod.

[0015] This invention provides a clamping device for detecting the insertion and removal of components in an automotive connector system. It offers the following advantages: This invention, by setting track bars and arc-shaped bosses on the worktable surface of a multi-directional vibration table, and in conjunction with the structural design of a sliding plate, rollers, and lifting plate, allows the sliding plate to slide horizontally on the track bars while the rollers roll along the surface of the arc-shaped bosses, thereby driving the lifting plate to move up and down reciprocally as a whole, forming a composite vibration in the horizontal and vertical directions. This effectively simulates the complex vibration environment experienced by the joint system during automobile driving, and solves the problem of the existing technology having a single detection condition and being unable to truly reproduce the actual vibration state during use.

[0016] This invention, by setting a fixing bolt and installing a first spring on the surface of the sliding plate, and installing a fixing column and roller structure at the bottom of the lifting plate, enables the sliding plate and the lifting plate to be elastically pressed together, thereby improving the stability and shock resistance of the clamping structure during vibration. It effectively avoids the phenomenon of clamping loosening or displacement caused by vibration, improves the reliability and accuracy of the detection process, and solves the problem of unstable clamping in existing detection devices under dynamic environments.

[0017] This invention provides a rotating seat at the top of the lifting plate, with a worm gear ring on the outside of the rotating seat. The worm gear ring meshes with a worm inside the housing, and the angle of the rotating seat is controlled by rotating the worm. This allows for flexible adjustment of the connector body's orientation, enabling the insertion and removal direction between the connector body and the connecting harness to be adjusted according to testing requirements. This simulates different actual operating conditions and solves the problems of fixed connector clamping direction and insufficient testing adaptability in the prior art.

[0018] This invention provides a pressure plate structure on a rotating base, with two pressure plates located on either side of the mounting hole. The connector body is stably held in place by bolts, preventing loosening or displacement of the connector body during vibration or insertion / removal. This ensures consistency of insertion / removal actions during testing, improves the accuracy and repeatability of test data, and solves the problem of insecure connector body fixation in existing testing methods.

[0019] This invention provides a rotation angle limiting mechanism at one end of the housing. The limiting mechanism includes a first toothed disc, a second toothed disc, a slide bar, a convex strip, and a second spring. The worm gear is locked by the meshing of the toothed discs and the insertion of the convex strip into the groove. This effectively prevents the worm gear from rotating unexpectedly due to inertia during vibration, ensuring that the rotating seat maintains a stable clamping angle during the testing process. This improves the stability and consistency of the testing and solves the problem of easy clamping angle deviation in the prior art.

[0020] This invention provides an insertion / extraction force adjustment mechanism located on the rear side of a multi-directional vibration table. This mechanism includes a column, a swing rod, a telescopic rod, a fixed cylinder, a locking bolt, and a counterweight. Adjusting the weight of the counterweight adjusts the upward pull-out force on the connected wiring harness, while the locking bolt secures the harness. This allows for flexible adjustment of the pull-out force according to different testing standards, utilizing the lever principle to create a stable upward pull-out force. This improves the accuracy and ease of operation of the insertion / extraction force detection, solving the problems of complex insertion / extraction force adjustment and low testing accuracy in existing testing devices. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the skateboard mounting structure of the present invention; Figure 3 This is a three-dimensional schematic diagram of the workbench of the present invention; Figure 4 For the present invention Figure 1 A schematic diagram of the cross-sectional structure; Figure 5 This is a schematic diagram of the mounting structure of the skateboard and rotating clamping mechanism of the present invention; Figure 6 This is an exploded view of the lifting plate and rotating seat of the present invention; Figure 7 This is a schematic diagram of the protruding ring and the housing of the present invention; Figure 8 This is a schematic diagram of the worm gear and slide bar structure of the present invention; Figure 9 This is a schematic diagram of the installation structure of the insertion / extraction force adjustment mechanism of the present invention.

[0022] Among them, 1. Multi-directional vibration table; 11. Worktable; 12. Track bar; 13. Arc-shaped boss; 14. Turntable; 15. Slide groove; 16. Threaded rod; 17. Moving block; 18. Slide plate; 19. Fixing bolt; 110. Through groove; 111. Limiting plate; 112. First spring; 113. Connecting rod; 2. Rotary clamping mechanism; 21. Lifting plate; 22. Convex ring; 23. Housing; 24. Fixed column; 25. Roller; 26. Rotary seat; 27. Worm gear ring; 28. Mounting hole; 29. ​​Pressure plate; 210. Worm; 3. Rotation angle limiting mechanism; 31. First gear plate; 32. Slide rod; 33. Protrusion; 34. Second gear plate; 35. Knob; 36. Second spring; 4. Connector body; 5. Connect the wiring harness; 6. Insertion / extraction force adjustment mechanism; 61. Column; 62. Swing rod; 63. Telescopic rod; 64. Fixed cylinder; 65. Locking bolt; 66. Rotating head; 67. Hanging rod; 68. Counterweight. Detailed Implementation

[0023] 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.

[0024] Example 1: See Figure 1-9 A clamping device for testing the insertion and removal of an automotive connector system includes a multi-directional vibration table 1. The multi-directional vibration table 1 includes a worktable 11 fixed to the ground. Tracks 12 are symmetrically arranged on the upper surface of the worktable 11. Slide plates 18 are slidably mounted on the surfaces of the two tracks 12. Fixing bolts 19 are vertically arranged at the four corners of the upper surface of the slide plates 18. A first spring 112 is sleeved on the outer surface of the fixing bolts 19. The first spring 112 is used to provide downward elastic force to improve the contact stability between the slide plates 18 and the tracks 12 during vibration. A rotating clamping mechanism 2 is installed above the slide plates 18. The rotating clamping mechanism 2 is installed on the slide plates 18 and can realize the angle adjustment of the connector body 4, improving the adaptability and flexibility of the insertion and removal test. The multi-directional vibration table 1 can realize the horizontal movement of the slide plates 18 by cooperating with the structure on the worktable 11. Through the action of the first spring 112 between the fixing bolts 19 and the lifting plate 21, the stability and shock resistance of the overall clamping system are improved.

[0025] See Figure 3The worktable 11 has an arc-shaped boss 13 on its surface. The arc-shaped boss 13 is an integrally formed structure with a smooth surface and continuous contact with the roller 25 under the slide plate 18. It is used to form the up-and-down reciprocating vibration trajectory of the lifting plate 21. The arc-shaped boss 13 is placed parallel between the two track bars 12 to ensure that the slide plate 18 always runs along the arc-shaped trajectory during horizontal movement. A turntable 14 is rotatably installed on one side of the worktable 11. The bottom of the turntable 14 is connected to the motor drive shaft through a connecting structure. The motor can drive the turntable 14 to rotate continuously. A groove 15 is opened on one side of the upper surface of the turntable 14. A threaded rod 16 is rotatably installed inside the groove 15. The threaded rod 16 is supported by a bearing assembly. A moving block 17 is threaded on the surface. The moving block 17 can move along the axial direction of the threaded rod 16. By adjusting the rotation angle of the threaded rod 16, the eccentricity can be changed, thereby adjusting the horizontal movement amplitude of the slide plate 18, thus simulating different amplitudes of automotive vibration environment.

[0026] See Figure 1-2 The surface of the movable block 17 is hinged to a connecting rod 113 via a hinge structure. The other end of the connecting rod 113 is hinged to the slide plate 18. When the turntable 14 rotates, the connecting rod 113 drives the slide plate 18 to reciprocate horizontally. At the same time, the connecting rod 113 cooperates with the fixed column 24 and roller 25 at the bottom of the slide plate 18 to enable the slide plate 18 to achieve lifting and lowering movements while moving horizontally. A through groove 110 is provided in the center of the surface of the slide plate 18. The through groove 110 extends along the length of the slide plate 18 to provide space for the movement of the fixed column 24. A limit plate 111 is installed on the top of the fixing bolt 19. The limit plate 111 prevents the lifting plate 21 from excessive displacement due to vibration. A first spring 112 is sleeved on the surface of the fixing bolt 19. The first spring 112 is placed between the limit plate 111 and the lifting plate 21. The spring presses the lifting plate 21 tightly through the elastic force to ensure a stable clamping state during vibration.

[0027] See Figure 1-9 A fixed column 24 is installed at the center of the bottom of the lifting plate 21. The lower end of the fixed column 24 passes through the through groove 110 and extends to the bottom of the slide plate 18. A roller 25 is rotatably installed at the bottom of the fixed column 24. The roller 25 is supported by a bearing assembly and can roll along the surface of the arc-shaped boss 13 when the slide plate 18 moves. The roller 25 always maintains contact with the surface of the arc-shaped boss 13, ensuring that the up and down movement of the lifting plate 21 is continuous and stable during vibration. At the same time, the rotating clamping mechanism 2 as a whole vibrates up and down with the slide plate 18, simulating the vertical vibration impact of the joint system when the car is moving.

[0028] See Figure 4-6A raised ring 22 is provided at the center of the surface of the lifting plate 21. The raised ring 22 is used to support the rotation of the rotating seat 26. A housing 23 is provided laterally on one side of the raised ring 22. The housing 23 forms an installation cavity for the worm gear 210, which is used to adjust the rotation angle and limit the control. The rotating seat 26 is rotatably installed inside the raised ring 22. The rotating seat 26 can achieve fine angle adjustment with the cooperation of the worm wheel ring 27 and the worm gear 210. The outer circle of the rotating seat 26 is provided with the worm wheel ring 27, which meshes with the worm gear 210 inside the housing 23. The rotation of the worm gear 210 realizes the precise adjustment of the angle of the rotating seat 26, thereby adjusting the clamping direction of the connector body 4 and improving the diversity and pertinence of insertion and removal detection.

[0029] See Figure 6 Two pressure plates 29 are symmetrically installed on the upper surface of the rotating seat 26 by bolts. The two pressure plates 29 are respectively placed on the left and right sides of the mounting hole 28. The pressure plates 29 are fixed to the rotating seat 26 by bolts. The ends of the pressure plates 29 press against the side wall of the connector body 4 to achieve stable clamping of the connector body 4, avoid displacement due to vibration, ensure the reliability of fixing the connector body 4 during the insertion and removal test, and improve the test accuracy and repeatability.

[0030] See Figure 7-9 The rotation angle limiting mechanism 3 includes a first gear disk 31 fixedly installed at one end of the housing 23. The first gear disk 31 is fixed to the housing 23 by a key connection. The outer teeth of the first gear disk 31 mesh with a second gear disk 34 on the slide rod 32 that slides through the worm gear 210. The slide rod 32 has symmetrically arranged protrusions 33, which are inserted into grooves inside the worm gear 210 to prevent the worm gear 210 from rotating due to inertia during detection. The second gear disk 34 is provided at one end of the slide rod 32 for engaging with the first gear disk 34. The gear 31 engages to limit the rotation angle, and a knob 35 is provided at the other end of the slide rod 32. The knob 35 is used to drive the slide rod 32 to slide axially. A second spring 36 is sleeved on the surface of the slide rod 32. The second spring 36 is placed between the housing 23 and the knob 35 to provide the slide rod 32 with an outward pushing force, so that the second gear 34 always maintains engagement with the first gear 31 when not in operation. This effectively prevents the worm gear 210 from rotating unexpectedly during vibration, which would cause changes in the clamping angle and improve the stability and reliability of the detection process.

[0031] See Figure 9The insertion / extraction force adjustment mechanism 6 includes a column 61 fixedly installed on the rear side of the upper surface of the workbench 11. A swing rod 62 is rotatably mounted on the top of the column 61 via a bearing seat. The swing rod 62 is used to generate an upward pulling force during the testing process to simulate the actual insertion / extraction force. A telescopic rod 63 is slidably installed at the front end of the swing rod 62. The telescopic rod 63 can be adjusted in length according to the testing requirements to accommodate different lengths of the connecting wire harness 5. A fixed cylinder 64 is vertically fixed at the end of the telescopic rod 63. The fixed cylinder 64 is used to clamp and position the connecting wire harness 5 to prevent slippage under vibration or insertion / extraction force. A locking bolt 65 is screwed onto the outer surface of the fixed cylinder 64. The locking bolt 65 fixes the connecting wire harness 5 inside the fixed cylinder 64 to ensure the stability and directionality of the connecting wire harness 5 during the insertion / extraction testing process.

[0032] See Figure 9 A rotating head 66 is mounted on the rear end of the swing rod 62 via a connecting seat. A hanging rod 67 is connected to the bottom of the rotating head 66. The hanging rod 67 is used to suspend the counterweight 68. The counterweight 68 can be equipped with different weights according to the testing requirements. A nut and a washer are screwed into the bottom of the hanging rod 67. When replacing the counterweight 68, the nut can be removed, and then the counterweight 68 can be installed from bottom to top. Finally, the nut can be screwed back on to support the counterweight 68 and adjust the pull-out force applied to the swing rod 62. The weight of the counterweight 68 is converted into an upward pull-out force at the front end of the telescopic rod 63 through the lever principle. Thus, on the basis of the vibration provided by the multi-directional vibration table 1, an additional upward pull-out load is applied to achieve comprehensive testing of the joint system's insertion and extraction resistance and vibration resistance.

[0033] During testing, the weight of counterweight 68 is adjusted according to the connector model and corresponding standard to regulate the pull-out force it applies to the opposite wiring harness 5. Low-voltage wiring harness connectors: insertion and extraction force is typically 5-30N (e.g., sensor plugs are about 10N, ECU connectors are about 20N).

[0034] High-voltage connectors (such as those for new energy vehicles): require higher insertion and extraction forces, generally 50-100N, to ensure a secure connection.

[0035] Then, the motor is started to simulate vibration. The vibration frequency is controlled by controlling the motor speed. After 2-4 hours, the joint is checked for looseness and errors in various data transmissions to determine whether the joint is qualified.

[0036] Example 2: See Figures 1-3In this embodiment, the multi-directional vibration table 1 includes a worktable 11 made of aluminum alloy, a track bar 12 made of high-strength steel, and an arc-shaped boss 13 with a polished surface to reduce rolling resistance. The slide plate 18 is made of carbon steel with a rust-proof coating. A rotating clamping mechanism 2 is installed above the slide plate 18. Through the coordinated work of the turntable 14, motor, threaded rod 16, moving block 17, and connecting rod 113, the slide plate 18 moves horizontally on the track bar 12, while the roller 25 rolls along the surface of the arc-shaped boss 13, causing the lifting plate 21 to vibrate up and down. This allows the joint body 4 to withstand the combined vibration load in the horizontal and vertical directions during the testing process, which can realistically simulate the vibration environment of the joint system during actual vehicle operation.

[0037] Traditional clamping testing devices only apply vibration in one direction and lack the ability to simulate horizontal and vertical vibrations simultaneously. The test results deviate significantly from the actual use environment and cannot accurately assess the durability of the joint system.

[0038] Example 3: See Figures 1-2 In this embodiment, four fixing bolts 19 are installed on the surface of the slide plate 18 by welding. The fixing bolts 19 are fitted with a first spring 112. The spring is made of high-elasticity phosphor bronze. The limiting plate 111 is installed on the top of the fixing bolts 19. By pressing the lifting plate 21, the fixing column 24 rolls with the surface of the arc-shaped boss 13 through the roller 25, so that a stable pressing structure is formed between the slide plate 18 and the lifting plate 21. During vibration, the loosening and displacement caused by vibration are effectively suppressed, ensuring the stability of the connector body 4 in the insertion and removal test, and improving the consistency and accuracy of the test data.

[0039] Existing devices mostly use rigid fixing methods and lack elastic clamping structures, which can easily cause the clamping mechanism to loosen during vibration, resulting in large deviations in the test data.

[0040] Example 4: See Figures 4-6 In this embodiment, the rotating clamping mechanism 2 includes a convex ring 22 and a housing 23 disposed on the lifting plate 21. The rotating seat 26 is an integrally machined aluminum alloy part. A worm gear ring 27 is disposed on the outer circular surface of the rotating seat 26. A worm 210 made of stainless steel is installed inside the housing 23. The worm 210 and the worm gear ring 27 are precisely meshed. The angle of the rotating seat 26 can be adjusted by rotating the worm 210. The connector body 4 is fixed inside the mounting hole 28. By adjusting the angle, the connector body 4 can be used for insertion and removal testing for different docking directions, thereby improving the flexibility and adaptability of the test.

[0041] Traditional clamping structures are mostly designed with a fixed angle and lack a flexible adjustment mechanism, which makes it impossible to adjust the insertion and removal direction according to changes in the actual use environment, resulting in limited testing conditions and a limited range of applications.

[0042] Example 5: See Figure 6 In this embodiment, two pressure plates 29 are symmetrically installed on the upper surface of the rotating seat 26. The pressure plates 29 are made of 304 stainless steel and are fixed to the rotating seat 26 by bolts. The pressure plates 29 clamp and fix the connector bodies 4 on both sides of the mounting hole 28 through the ends, ensuring that the connector bodies 4 do not slip or deflect during vibration and insertion / removal, thereby improving the clamping stability during the testing process and ensuring the consistency and repeatability of the test data.

[0043] Existing testing devices generally adopt a single-point snap-fit ​​fixing structure, which has insufficient fixing strength and is prone to displacement or detachment of the connector body during long-term vibration or forceful insertion and removal.

[0044] Example 6: See Figures 7-9 In this embodiment, the rotation angle limiting mechanism 3 includes a first gear 31 installed at one end of the housing 23 and a slide rod 32 that slides through the worm gear 210. The surface of the slide rod 32 is provided with a protrusion 33, which is engaged with the groove inside the worm gear 210. One end of the slide rod 32 is fixed with a second gear 34, and the other end is fixed with a knob 35. The knob 35 is fitted with a second spring 36 made of high carbon steel. The second spring 36 is placed between the housing 23 and the knob 35, and always maintains the meshing state between the second gear 34 and the first gear 31. During vibration, it effectively prevents the worm gear 210 from rotating due to inertia and ensures that the angle of the rotating seat 26 remains stable.

[0045] Ordinary clamping and testing devices do not have an angle locking mechanism, which can easily cause the worm gear to rotate during multi-directional vibration, resulting in changes in the clamping angle and seriously affecting the consistency and accuracy of the test.

[0046] Example 7: See Figure 9 In this embodiment, the insertion / extraction force adjustment mechanism 6 includes a column 61, a swing rod 62, a telescopic rod 63, a fixed cylinder 64, a locking bolt 65, and a counterweight 68. The column 61 is made of alloy steel, the swing rod 62 is made of high-strength carbon steel, the telescopic rod 63 is made of aluminum alloy, and the inner wall of the fixed cylinder 64 is provided with anti-slip texture. The locking bolt 65 is screwed in to achieve a stable clamping of the connecting harness 5. The rear end of the swing rod 62 is connected to the hanging rod 67 through a rotating head 66. The bottom of the hanging rod 67 is suspended by a counterweight 68 whose weight can be adjusted according to the testing standards. The lever principle is used to generate an upward pulling force, ensuring a stable and adjustable load during vibration and insertion / extraction, and meeting the requirements of different testing standards.

[0047] Traditional insertion and extraction testing often relies on direct motor pulling, which results in non-adjustable or complex insertion and extraction force, and is greatly affected by equipment inertia, leading to large fluctuations in insertion and extraction force during the test and high dispersion of test data.

[0048] Working principle: First, the connector body 4 to be tested is placed inside the mounting hole 28 and fixed by the pressure plates 29 on both sides. Then, the angle of the rotating seat 26 is controlled by rotating the worm gear 210, thereby controlling the direction of the connector body 4. Then, the connecting wire harness 5 is inserted into the connector body 4 and installed on the insertion and extraction force adjustment mechanism 6. Due to the presence of the first spring 112 and the weight of the rotating clamping mechanism 2, the rotating clamping mechanism 2 will have a downward force, so that the roller 25 always keeps in contact with the surface of the arc-shaped boss 13. The motor is started to control the turntable 14 to rotate. Then, through the cooperation of the eccentric moving block 17 and the connecting rod 113, the slide plate 18 is driven to move back and forth along the surface of the track 12. During the reciprocating movement, the roller 25 always rolls along the surface of the arc-shaped boss 13, so as to drive the lifting plate 21 to move up and down, thereby forming horizontal and vertical vibrations to simulate the movement state of a car. The rotating threaded rod 16 can control the eccentric distance between the moving block 17 and the axis of the turntable 14, thereby controlling the horizontal lateral amplitude of the slide plate 18. Adjusting the angle of the rotating seat 26 controls the movement direction of the connector body 4 relative to the connecting harness 5, thereby adjusting the relative direction of the insertion and extraction force. This is controlled by rotating the worm gear 210, which is also fixed by self-locking. However, during reciprocating movement, the worm gear 210 may rotate due to inertia, which may affect the angle of the rotating seat 26. The rotation angle limiting mechanism 3 can improve stability. Due to the presence of the second spring 36, the knob 35 has an outward force, which causes the second toothed disc 34 to mesh with the first toothed disc 31 to maintain the stability of the worm gear 210 and reduce the impact of vibration on the worm gear 210. When adjustment is required, the knob 35 can be pressed and rotated. Pressing causes the second toothed disc 34 to separate from the first toothed disc 31. During rotation, the worm gear 210 is rotated by the cooperation of the protrusion 33 with the internal groove of the worm gear 210. The locking bolt 65 keeps the connecting harness 5 and the fixed cylinder 64 fixed. The swing rod 62 can only rotate in the vertical direction to keep the connecting harness 5 in a vertical state when the slide plate 18 moves to the middle position. Different weights of counterweights 68 are placed according to different test standards to pull down the rear end of the swing rod 62, causing the front end of the swing rod 62 to tilt upward. Then, the lever principle is used to apply an upward pulling force to the connecting harness 5, and the multi-directional vibration table 1 is used to carry out the test.

[0049] 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. A clamping device for testing the insertion and removal of automotive connector systems, comprising a multi-directional vibration table (1), characterized in that: The multi-directional vibration table (1) includes a worktable (11) fixed on the ground surface. Track bars (12) are symmetrically arranged on the upper surface of the worktable (11). Slide plates (18) are slidably installed on the surfaces of the two track bars (12). Fixing bolts (19) are vertically arranged at the four corners of the upper surface of the slide plates (18). A rotating clamping mechanism (2) is installed above the slide plates (18). The rotating clamping mechanism (2) is used to adjust the clamping direction. The rotating clamping mechanism (2) includes a lifting plate (21) that is slidably disposed on the surface of four fixing bolts (19). A rotating seat (26) is installed at the top center of the lifting plate (21). An installation hole (28) is opened at the center of the surface of the rotating seat (26). A connector body (4) is fixed inside the installation hole (28). A rotation angle limiting mechanism (3) is provided on one side of the lifting plate (21); The connector body (4) has a connecting wire harness (5) inserted into its top. The multi-directional vibration table (1) has a insertion and extraction force adjustment mechanism (6) installed on the rear side of its upper surface. The insertion and extraction force adjustment mechanism (6) is used to adjust the upward extraction force of the connecting wire harness (5). The workbench (11) has an arc-shaped boss (13) on its surface. The arc-shaped boss (13) is placed parallel between the two track bars (12). A turntable (14) is rotatably mounted on one side of the workbench (11). The bottom of the turntable (14) is mounted on a motor. A groove (15) is opened on one side of the upper surface of the turntable (14). A threaded rod (16) is rotatably mounted inside the groove (15). A moving block (17) is screwed onto the surface of the threaded rod (16). The moving block (17) has a connecting rod (113) hinged to its surface. The end of the connecting rod (113) is hinged to the slide plate (18). The center of the surface of the slide plate (18) has a through groove (110). The through groove (110) is placed on the arc-shaped boss (13). The top of the fixing bolt (19) is fitted with a limiting plate (111). The surface of the fixing bolt (19) is fitted with a first spring (112). The first spring (112) is placed between the limiting plate (111) and the lifting plate (21). A convex ring (22) is provided at the center of the surface of the lifting plate (21). A housing (23) is provided laterally on one side of the convex ring (22). The rotating seat (26) rotates inside the convex ring (22). A worm gear ring (27) is provided on the outer circular surface of the rotating seat (26). A worm (210) is rotatably installed inside the housing (23). The worm (210) meshes with the worm gear ring (27). The rotation angle limiting mechanism (3) includes a first gear plate (31) fixed to one end of the housing (23) and a slide rod (32) that slides through the worm gear (210). The slide rod (32) has symmetrically arranged protrusions (33) on its surface. The worm gear (210) has symmetrically arranged grooves that match the protrusions (33) inside. A second gear plate (34) is provided at one end of the slide rod (32), and a knob (35) is provided at the other end of the slide rod (32). The second gear plate (34) is adapted to the first gear plate (31). A second spring (36) is sleeved on the surface of the slide rod (32). The second spring (36) is placed between the housing (23) and the knob (35). The insertion and extraction force adjustment mechanism (6) includes a column (61) fixed on the rear side of the upper surface of the workbench (11). A swing rod (62) is rotatably installed on the top of the column (61). A telescopic rod (63) is slidably installed at the front end of the swing rod (62). A fixed cylinder (64) is vertically arranged at the end of the telescopic rod (63). The connecting wire harness (5) passes through the fixed cylinder (64). A locking bolt (65) is screwed onto the surface of the fixed cylinder (64). The connecting wire harness (5) is fixed to the fixed cylinder (64) by the locking bolt (65).

2. The clamping device for detecting the insertion and extraction of a connector system of an automobile according to claim 1, characterized in that: A fixed column (24) is installed at the bottom center of the lifting plate (21). The fixed column (24) passes through the through groove (110). A roller (25) is rotatably installed at the bottom of the fixed column (24). The roller (25) is in contact with the surface of the arc-shaped boss (13).

3. The clamping device for detecting the insertion and extraction of a connector system of an automobile according to claim 1, characterized in that: The upper surface of the rotating seat (26) is symmetrically fitted with pressure plates (29) by bolts. The two pressure plates (29) are respectively placed on both sides of the mounting hole (28). The pressure plates (29) are used to fix the connector body (4).

4. The clamping device for detecting the insertion and extraction of a connector system of an automobile according to claim 1, characterized in that: A rotating head (66) is installed at the rear end of the swing arm (62), and a hanging rod (67) is connected to the bottom of the rotating head (66). A counterweight (68) is installed below the surface of the hanging rod (67).

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