Clamping device for plugging detection of automobile joint system

Abstract

The invention relates to a clamping device for plugging detection of an automobile joint system, which comprises a multi-direction vibration table, the multi-direction vibration table comprises a workbench, a track strip, an arc-shaped boss, a turntable, a threaded rod and a sliding plate, the sliding plate is provided with a rotary clamping mechanism, and the rotary clamping mechanism comprises a lifting plate, a rotary seat and a worm transmission mechanism. A rotating angle limiting mechanism is arranged on one side of the lifting plate, a connector body is fixed to the rotating base and connected with a butt joint wire harness, and an inserting and pulling force adjusting mechanism is installed on the rear side of the workbench and used for applying adjustable upward pulling force. Multi-direction vibration simulation is achieved through composite motion of the sliding plate and the lifting plate, clamping direction adjustment is achieved through the worm and the rotating seat structure, angle changes in the vibration process are effectively limited through the rotating angle limiting mechanism, the pulling-out force is flexibly controlled through the inserting and pulling force adjusting mechanism, and the clamping direction is adjusted. The simulation performance of the detection environment, the clamping stability and the detection precision can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile connector detection, in particular to a clamping device for plugging and unplugging detection of an automobile connector system. Background Art

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

[0003] Existing automotive connector plugging and unplugging tests mostly rely on manual clamping and plugging, applying plugging and unplugging forces externally and supplemented by simple vibration simulation, but this has several shortcomings. On the one hand, existing detection devices mostly use fixed brackets to simply clamp the connector body, lacking flexible angle adjustment functions and unable to adjust the plugging and unplugging direction of the connector body relative to the docking wiring harness according to actual working conditions, resulting in deviations between the test results and the actual use environment. On the other hand, the vibration simulation mechanism is usually only capable of unidirectional vibration, making it difficult to apply dynamic loads in the horizontal and vertical directions at the same time, resulting in a single detection condition and an inability to fully simulate the complex vibration environment to which the connector system is subjected during actual driving of the vehicle.

[0004] Furthermore, some existing devices may experience changes in the clamping mechanism's angle during vibration due to inertia, resulting in positional shifts during testing and, in turn, affecting insertion and extraction force accuracy. Existing technologies lack effective angle locking mechanisms, leading to insufficient repeatability and reliability in test data. Furthermore, in existing structures, force adjustment typically relies on an electronic control system, lacking a simple physical adjustment method. This makes operation complex and accuracy limited. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a clamping device for plugging and unplugging detection of automobile connector systems, which can realize flexible adjustment of the direction of the connector body, multi-directional vibration simulation, effective locking of the rotation angle, and can adjust the plugging and unplugging force through a lever structure. The clamping device for plugging and unplugging detection of automobile connector systems solves the above-mentioned problems existing in the existing technology and improves the stability and accuracy of the detection process.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A clamping device for plugging and unplugging testing of an automotive connector system includes a multi-directional vibration table, the multi-directional vibration table including a workbench fixed to the ground, the workbench having track bars symmetrically arranged on its upper surface, two slides slidably mounted on the surfaces of the track bars, fixing bolts vertically arranged at the four corners of the upper surface of the slide, and a rotating clamping mechanism mounted above the slide; The rotary clamping mechanism is used to adjust the clamping direction. The rotary clamping mechanism includes a lifting plate that slides on the surfaces of four fixing bolts. A rotating seat is installed at the center of the top of the lifting plate. A mounting hole is opened at the center of the surface of the rotating seat. The joint body is fixed inside the mounting hole. A rotation angle limiting mechanism is provided on one side of the lifting plate; A docking wire harness is plugged into the top of the connector body, and an insertion and extraction force adjustment mechanism is installed on the rear side of the upper surface of the multi-directional vibration table. The insertion and extraction force adjustment mechanism is used to adjust the upward pulling force of the docking wire harness.

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

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

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

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

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

[0012] Furthermore, the rotation angle limiting mechanism includes a first toothed disc fixed at one end of the shell and a sliding rod sliding through the worm, the surface of the sliding rod is symmetrically provided with convex strips, the inside of the worm is symmetrically provided with grooves adapted to the convex strips, a second toothed disc is provided at one end of the sliding rod, and a knob is provided at the other end of the sliding rod, the second toothed disc and the first toothed disc are adapted to each other, a second spring is sleeved on the surface of the sliding rod, and the second spring is placed between the shell and the knob.

[0013] Furthermore, the plug-in and pull-out force adjustment mechanism includes a column fixed on the rear side of the upper surface of the workbench, a swing rod is rotatably installed on the top of the column, a telescopic rod is slidably installed on the front end of the swing rod, a fixing cylinder is vertically arranged on the end of the telescopic rod, the docking wire harness passes through the fixing cylinder, a locking bolt is screwed on the surface of the fixing cylinder, and the docking wire harness is fixed to the fixing cylinder by the locking bolt.

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

[0015] The present invention provides a clamping device for plugging and unplugging detection of an automobile connector system. It has the following beneficial effects: The present invention arranges track bars and arc-shaped bosses on the worktable surface of the multi-directional vibration table, and cooperates with the structural design of the skateboard, rollers and lifting plate. The skateboard can slide horizontally on the track bars while the rollers roll along the surface of the arc-shaped bosses, thereby driving the lifting plate to reciprocate up and down as a whole, forming a composite vibration in the horizontal and vertical directions, effectively simulating the complex vibration environment to which the joint system is subjected during the driving of the car, and solving the problem in the prior art of a single detection working condition and an inability to truly restore the actual vibration state in use.

[0016] The present invention arranges a fixing bolt on the surface of the slide and installs a first spring, and installs a fixing column and a roller structure at the bottom of the lifting plate, so that the slide and the lifting plate can be elastically compressed, thereby improving the stability and seismic resistance of the clamping structure during vibration, effectively avoiding the clamping looseness or deviation caused by vibration, improving the reliability and accuracy of the detection process, and solving the problem of unstable clamping of existing detection devices in dynamic environments.

[0017] The present invention provides a rotating seat on the top of the lifting plate, a worm gear ring on the outside of the rotating seat, and engages with the worm inside the shell through the worm gear ring. The angle of the rotating seat is controlled by rotating the worm, thereby further realizing flexible adjustment of the direction of the joint body. The plugging and unplugging direction between the joint body and the docking wiring harness can be adjusted according to the detection requirements, simulating different actual usage conditions, and solving the problems of fixed joint clamping direction and insufficient detection adaptability in the prior art.

[0018] The present invention arranges a pressure plate structure on the rotating seat, and the two pressure plates are respectively located on both sides of the mounting hole, and the joint body is stably pressed by bolts, thereby avoiding loosening or displacement of the joint body during vibration or plugging and unplugging, ensuring the consistency of the plugging and unplugging action during the detection process, improving the accuracy and repeatability of the detection data, and solving the problem of loose fixation of the joint body in the existing detection.

[0019] The present invention sets a rotation angle limiting mechanism at one end of the shell. The limiting mechanism includes a first toothed disc, a second toothed disc, a sliding rod, a convex strip and a second spring. The worm is locked by the meshing cooperation of the toothed disc and the insertion of the convex strip into the groove, which effectively prevents the worm from accidentally rotating due to inertia during vibration, ensures that the rotating seat maintains a stable clamping angle during the detection process, improves the stability and consistency of the detection, and solves the problem of easy deviation of the clamping angle in the prior art.

[0020] The present invention arranges an insertion and extraction force adjustment mechanism on the rear side of the multi-directional vibration table. The insertion and extraction force adjustment mechanism includes a column, a swing rod, a telescopic rod, a fixing cylinder, a locking bolt and a counterweight block. The upward pulling force of the docking wiring harness is adjusted by adjusting the weight of the counterweight block, and the docking wiring harness is fixed by the locking bolt. The pulling force can be flexibly adjusted according to different detection standards, and a stable upward pulling force is formed by using the lever principle, thereby improving the accuracy and ease of operation of the insertion and extraction force detection, and solving the problems of complex insertion and extraction force adjustment and low detection accuracy of the existing detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[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 installation structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the workbench of the present invention; Figure 4 For the present invention Figure 1 Schematic diagram of the cross-section structure; Figure 5 This is a schematic diagram of the installation structure of the slide plate and the rotary clamping mechanism of the present invention; Figure 6 This is a schematic diagram of the explosion structure of the lifting plate and the rotating seat of the present invention; Figure 7 It is a schematic diagram of the convex ring and the housing of the present invention; Figure 8 Schematic diagram of the worm and slide structure of the present invention; Figure 9 This is a schematic diagram of the installation structure of the insertion and extraction force adjustment mechanism of the present invention.

[0022] Among them, 1. multi-directional vibration table; 11. workbench; 12. track bar; 13. arc-shaped boss; 14. turntable; 15. slide; 16. threaded rod; 17. moving block; 18. slide plate; 19. fixing bolt; 110. through slot; 111. limit plate; 112. first spring; 113. connecting rod; 2. Rotating clamping mechanism; 21. Lifting plate; 22. Raised ring; 23. Housing; 24. Fixed column; 25. Roller; 26. Rotating seat; 27. Worm gear; 28. Mounting hole; 29. Pressing plate; 210. Worm; 3. Rotation angle limiting mechanism; 31. First toothed disc; 32. Sliding rod; 33. Raised strip; 34. Second toothed disc; 35. Knob; 36. Second spring; 4. Connector body; 5. Docking wiring harness; 6. Insertion and extraction force adjustment mechanism; 61. Vertical column; 62. Swing rod; 63. Telescopic rod; 64. Fixed cylinder; 65. Locking bolt; 66. Rotating head; 67. Vertical suspension rod; 68. Counterweight. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1: See Figure 1-9 , a clamping device for plugging and unplugging detection of an automobile connector system, including a multi-directional vibration table 1, the multi-directional vibration table 1 includes a workbench 11 fixed to the ground, the upper surface of the workbench 11 is symmetrically provided with track bars 12, and slides 18 are slidably installed on the surfaces of the two track bars 12, and fixing bolts 19 are vertically provided at the four corners of the upper surface of the slide 18. The outer surface of the fixing bolt 19 is sleeved with a first spring 112, and the first spring 112 is used to provide a downward elastic force to improve the fit stability between the slide 18 and the track bar 12 during the vibration process, and a rotating clamping mechanism 2 is installed above the slide 18, and the rotating clamping mechanism 2 is integrally installed on the slide 18, which can realize the angle adjustment of the connector body 4, thereby improving the adaptability and flexibility of plugging and unplugging detection; the multi-directional vibration table 1 can realize the horizontal movement of the slide 18 by cooperating with the structure on the workbench 11, and through the action of the first spring 112 between the fixing bolt 19 and the lifting plate 21, the stability and seismic resistance of the overall clamping system are improved.

[0025] See Figure 3The workbench 11 is provided with an arc-shaped boss 13 on the surface. The arc-shaped boss 13 is an integrally formed structure with a smooth surface and in continuous contact with the roller 25 under the skateboard 18, which is used to form an up and down reciprocating vibration trajectory of the lifting plate 21. The arc-shaped boss 13 is placed parallel to the two track bars 12 to ensure that the skateboard 18 always runs along the arc trajectory during the horizontal movement; a turntable 14 is rotatably installed on one side of the workbench 11 surface, and 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 achieve continuous rotation, and a slide groove 15 is provided on one side of the upper surface of the turntable 14. A threaded rod 16 is rotatably installed inside the slide groove 15. The threaded rod 16 is supported by a bearing assembly, and a moving block 17 is screwed on the surface thread. The moving block 17 can move axially along the threaded rod 16. The eccentricity can be changed by adjusting the rotation angle of the threaded rod 16, and then the horizontal movement amplitude of the skateboard 18 can be adjusted, thereby simulating automobile vibration environments of different amplitudes.

[0026] See Figure 1-2 The surface of the moving block 17 is hinged with a connecting rod 113 through a hinge structure, and the other end of the connecting rod 113 is hinged on the slide 18. When the turntable 14 rotates, the connecting rod 113 drives the slide 18 to perform reciprocating horizontal movement. At the same time, the connecting rod 113 cooperates with the fixed column 24 and the roller 25 at the bottom of the slide 18, so that the slide 18 can achieve lifting movement while moving horizontally; a through groove 110 is opened in the center of the surface of the slide 18, and the through groove 110 extends along the length direction of the slide 18 to provide space for the movement of the fixed column 24, and 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, and the first spring 112 is placed between the limit plate 111 and the lifting plate 21, and the lifting plate 21 is pressed by elastic force to ensure a stable clamping state during the vibration process.

[0027] See Figure 1-9 A fixing column 24 is installed at the bottom center of the lifting plate 21. The lower end of the fixing column 24 passes through the through slot 110 and extends to the bottom of the slide 18. A roller 25 is rotatably installed at the bottom of the fixing 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 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 the vibration process. At the same time, the rotating clamping mechanism 2 as a whole forms a reciprocating up and down vibration with the slide 18, simulating the vertical vibration impact on the joint system when the car is driving.

[0028] See Figure 4-6A convex ring 22 is provided at the center of the surface of the lifting plate 21. The convex ring 22 is used to support the rotational movement of the rotating seat 26. A shell 23 is laterally provided on one side of the convex ring 22. A mounting cavity for the worm 210 is formed inside the shell 23 to achieve rotation angle adjustment and limit control; the rotating seat 26 is rotatably installed on the inner side of the convex ring 22. The rotating seat 26 can achieve angle fine-tuning with the cooperation of the worm gear ring 27 and the worm 210. A worm gear ring 27 is provided on the outer circular surface of the rotating seat 26. The worm gear ring 27 is engaged with the worm 210 inside the shell 23. The precise adjustment of the angle of the rotating seat 26 is achieved by rotating the worm 210, thereby adjusting the clamping direction of the connector body 4 and improving the diversity and pertinence of plug-in detection.

[0029] See Figure 6 The upper surface of the rotating seat 26 is symmetrically mounted with pressure plates 29 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 the side walls of the connector body 4 to achieve stable clamping of the connector body 4, avoiding displacement due to vibration, ensuring the reliability of the fixation of the connector body 4 during the plug-in and unplug detection process, and improving the detection accuracy and repeatability.

[0030] See Figure 7-9 The rotation angle limiting mechanism 3 includes a first toothed disc 31 fixedly mounted on one end of the housing 23. The first toothed disc 31 is fixed to the housing 23 by a key connection. The outer teeth of the first toothed disc 31 mesh with the second toothed disc 34 on the slide rod 32 that slides through the worm 210. The surface of the slide rod 32 is symmetrically provided with ridges 33. The ridges 33 are inserted into the grooves provided inside the worm 210 to prevent the worm 210 from rotating due to inertia during detection. A second toothed disc 34 is provided at one end of the slide rod 32 for engaging with the first toothed disc 31. The toothed disc 31 is engaged to limit the rotation angle, and a knob 35 is provided at the other end of the slide rod 32, which is used to drive the slide rod 32 to slide in the axial direction; a second spring 36 is provided on the surface of the slide rod 32, and the second spring 36 is placed between the housing 23 and the knob 35 to provide an outward thrust for the slide rod 32, so that the second toothed disc 34 always remains engaged with the first toothed disc 31 in the non-operating state, thereby effectively preventing the worm 210 from accidentally rotating during vibration and causing the clamping angle to change, thereby improving the stability and reliability of the detection process.

[0031] See Figure 9The plugging and unplugging force adjustment mechanism 6 includes a column 61 fixedly mounted on the rear side of the upper surface of the workbench 11, and a swing rod 62 is rotatably mounted on the top of the column 61 through a bearing seat. The swing rod 62 is used to generate an upward pulling force during the detection process to simulate the actual plugging and unplugging force. A telescopic rod 63 is slidably mounted on the front end of the swing rod 62. The length of the telescopic rod 63 can be adjusted according to the detection requirements to adapt to the docking wire harness 5 of different lengths. A fixing cylinder 64 is vertically fixed to the end of the telescopic rod 63. The fixing cylinder 64 is used to clamp and position the docking wire harness 5 to prevent sliding under vibration or plugging and unplugging force. A locking bolt 65 is screwed on the outer surface of the fixing cylinder 64, and the docking wire harness 5 is fixed to the inside of the fixing cylinder 64 by the locking bolt 65 to ensure the stability and directionality of the docking wire harness 5 during the plugging and unplugging detection process.

[0032] See Figure 9 The rear end of the swing rod 62 is equipped with a rotating head 66 through a connecting seat, and the bottom of the rotating head 66 is connected to a hanging rod 67. The hanging rod 67 is used to hang a counterweight 68. The counterweight 68 can be equipped with different weights according to the detection requirements. The bottom of the hanging rod 67 is screwed with a nut and a gasket. When replacing the counterweight 68, the nut can be removed, and then the counterweight 68 can be installed from bottom to top, and finally the nut is screwed on to support the counterweight 68 to adjust the pulling force applied to the swing rod 62; the gravity of the counterweight 68 is converted into an upward pulling force at the front end of the telescopic rod 63 through the lever principle, so that an additional pulling load is applied on the basis of the vibration provided by the multi-directional vibration table 1, so as to realize the comprehensive detection of the plug-in resistance and vibration resistance of the joint system.

[0033] During the test, the weight of the counterweight 68 is changed according to the connector model and the corresponding standard to adjust the pulling force applied to the wiring harness 5. Low-voltage wiring harness connector: The plug-in and pull-out force is usually 5-30N (e.g. sensor plug about 10N, ECU connector about 20N).

[0034] High-voltage connectors (such as new energy vehicles): The insertion and removal force needs to be higher, generally 50-100N, to ensure a stable connection.

[0035] Then start the motor to simulate vibration, and control the vibration frequency by controlling the motor speed. After 2-4 hours, check whether the joint is loose and whether there are errors in the data transmission to judge whether the joint is qualified.

[0036] Example 2: See Figure 1-Figure 3In this embodiment, the multi-directional vibration table 1 includes a workbench 11 made of aluminum alloy, the track bar 12 is made of high-strength steel, and the surface of the arc-shaped boss 13 is polished to reduce rolling resistance; the slide plate 18 is made of carbon steel and coated with an anti-rust coating. A rotary clamping mechanism 2 is installed above the slide plate 18. The turntable 14, the motor, the threaded rod 16, the moving block 17, and the connecting rod 113 work together to enable the slide plate 18 to achieve horizontal movement on the track bar 12. At the same time, the roller 25 rolls along the surface of the arc-shaped boss 13 to drive the lifting plate 21 to vibrate back and forth up and down, so that the joint body 4 is subjected to the comprehensive vibration load in the horizontal and vertical directions during the detection process, which can truly simulate the vibration environment to which the joint system is subjected during the actual operation of the automobile.

[0037] Traditional clamping detection devices only apply vibration in a single direction and lack the ability to simulate horizontal and vertical vibrations at the same time. The test results deviate significantly from the actual usage environment and cannot accurately evaluate the durability of the joint system.

[0038] Example 3: See Figure 1-Figure 2 In this embodiment, four fixing bolts 19 are installed on the surface of the slide 18 by welding. The outer sleeve of the fixing bolt 19 is provided with a first spring 112. The spring material is made of highly elastic phosphor bronze material. The limit plate 111 is installed on the top of the fixing bolt 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 18 and the lifting plate 21, which effectively suppresses the loosening and deviation caused by the vibration during the vibration process, ensures the stability of the connector body 4 in the plug-in test, and improves the consistency and accuracy of the test data.

[0039] Most existing devices use a rigid fixing method and lack an elastic clamping structure, which can easily cause the clamping mechanism to loosen during vibration, resulting in large deviations in the detection data.

[0040] Example 4: See Figure 4-Figure 6 In this embodiment, the rotary clamping mechanism 2 includes a convex ring 22 and a shell 23 provided on the lifting plate 21. The rotating seat 26 is an integrated aluminum alloy part. A worm gear ring 27 is provided on the outer cylindrical surface of the rotating seat 26. A worm 210 made of stainless steel is installed inside the shell 23. The worm 210 is precisely engaged with the worm gear ring 27. The angle of the rotating seat 26 is adjusted by rotating the worm 210. The joint body 4 is fixed inside the mounting hole 28. The angle adjustment enables the joint body 4 to be plugged in and out for different docking directions, thereby improving the flexibility and adaptability of the test.

[0041] Traditional clamping structures are mostly fixed-angle designs and lack flexible adjustment mechanisms, which makes it impossible to adjust the plugging and unplugging direction according to changes in the actual usage environment. The detection conditions are single and the scope of application is limited.

[0042] Example 5: See Figure 6 In this embodiment, two pressure plates 29 are symmetrically installed on the upper surface of the rotating base 26. The pressure plates 29 are made of 304 stainless steel. The pressure plates 29 are fixed to the rotating base 26 by bolts, and the end portions are used to clamp the connector body 4 on both sides of the mounting hole 28 to ensure that the connector body 4 does not slip or deflect during vibration and plugging and unplugging, thereby improving the clamping stability during the detection process and ensuring the consistency and repeatability of the detection data.

[0043] Existing detection devices generally use a single-point snap-on fixing structure, which has insufficient fixing strength and can easily cause the connector body to shift or fall off during long-term vibration or strong plugging and unplugging.

[0044] Example 6: See Figure 7-Figure 9 In this embodiment, the rotation angle limiting mechanism 3 includes a first toothed disc 31 mounted at one end of the housing 23 and a slide rod 32 sliding through the worm 210. A ridge 33 is provided on the surface of the slide rod 32. The ridge 33 is engaged with the internal groove of the worm 210. One end of the slide rod 32 is fixed to the second toothed disc 34, and the other end is fixed to the knob 35. The outer sleeve of the knob 35 is provided with a second spring 36 made of high carbon steel; the second spring 36 is placed between the housing 23 and the knob 35 to always keep the second toothed disc 34 and the first toothed disc 31 in a meshing state, effectively preventing the worm 210 from rotating due to inertia during vibration, and ensuring that the angle of the rotating seat 26 remains stable.

[0045] Ordinary clamping detection devices are not equipped with an angle locking mechanism, and the worm is prone to rotation during multi-directional vibration, resulting in changes in the clamping angle, which seriously affects the consistency and accuracy of the detection.

[0046] Example 7: See Figure 9 In this embodiment, the insertion and 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, and the telescopic rod 63 is made of aluminum alloy. The inner wall of the fixed cylinder 64 is provided with anti-slip grooves, and the locking bolt 65 is screwed in to achieve a firm clamping of the docking harness 5; the rear end of the swing rod 62 is connected to the hanging rod 67 through the rotating head 66, and a counterweight 68 whose weight can be adjusted according to the test standard is hung at the bottom of the hanging rod 67. The lever principle is used to form an upward pulling force to ensure that a stable and adjustable load is provided during vibration and insertion and extraction, meeting the requirements of different test standards.

[0047] Traditional plug-in and pull-out testing mostly relies on direct pulling by a motor. The plug-in and pull-out force cannot be adjusted or is complicated to adjust. It is also greatly affected by the inertia of the equipment, resulting in large fluctuations in the plug-in and pull-out force during the test and high discreteness of the test data.

[0048] Working principle: first, place the joint body 4 to be tested inside the mounting hole 28, and fix the joint body 4 by the pressure plates 29 on both sides, then control the angle of the rotating seat 26 by rotating the worm 210, thereby controlling the direction of the joint body 4, and then connect the wiring harness 5 to the joint body 4 and install it on the plug-in force adjustment mechanism 6. Due to the presence of the first spring 112 and the deadweight of the rotating clamping mechanism 2, the rotating clamping mechanism 2 as a whole has a downward force, so that the roller 25 always keeps in contact with the surface of the arc-shaped boss 13, start the motor to control the rotation of the turntable 14, and then drive the slide 18 to reciprocate along the surface of the track bar 12 through the cooperation of the eccentric moving block 17 and the connecting rod 113. During the reciprocating movement, the roller 25 always rolls along the surface of the arc-shaped boss 13 to drive the lifting plate 21 to reciprocate up and down, thereby forming horizontal and vertical vibrations to simulate the motion state of the 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 18. Adjusting the angle of the rotating seat 26 can control the moving direction of the connector body 4 relative to the docking wiring harness 5, and then adjust the relative direction of the plug-in and pull-out force. This is controlled by rotating the worm 210, and at the same time, it is kept fixed by self-locking. However, the worm 210 may rotate due to inertia during reciprocating movement, thereby affecting 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 in turn causes the second toothed disc 34 to engage with the first toothed disc 31 to maintain the stability of the worm 210 and reduce the impact of vibration on the worm 210. When adjustment is required, the knob 35 can be pressed and rotated to separate the second toothed disc 34 from the first toothed disc 31. During rotation, the convex strip 33 cooperates with the internal groove of the worm 210 to drive the worm 210 to rotate. The locking bolt 65 can keep the docking harness 5 fixed to the fixing cylinder 64, and the swing arm 62 can only rotate in the vertical direction to keep the docking harness 5 in a vertical state when the slide 18 moves to the middle position formed. According to different detection standards, counterweight blocks 68 of different weights are placed to pull down the rear end of the swing arm 62, so that the front end of the swing arm 62 is tilted upward, and then the lever principle is used to apply an upward pulling force to the docking harness 5, and the multi-directional vibration table 1 is used to perform the detection work.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A clamping device for plugging and unplugging detection of an automobile connector system, comprising a multi-directional vibration table (1), characterized in that: The multi-directional vibration table (1) comprises a workbench (11) fixed on the ground, the upper surface of the workbench (11) is symmetrically provided with track bars (12), two surfaces of the track bars (12) are slidably provided with slides (18), the four corners of the upper surface of the slides (18) are vertically provided with fixing bolts (19), and a rotating clamping mechanism (2) is installed above the slides (18); The rotary clamping mechanism (2) is used to adjust the clamping direction. The rotary clamping mechanism (2) comprises a lifting plate (21) sliding on the surface of four fixing bolts (19). A rotating seat (26) is installed at the top center of the lifting plate (21). A mounting hole (28) is opened at the center of the surface of the rotating seat (26). A joint body (4) is fixed inside the mounting hole (28). A rotation angle limiting mechanism (3) is provided on one side of the lifting plate (21); A docking wire harness (5) is plugged into the top of the connector body (4), and an insertion and extraction force adjustment mechanism (6) is installed on the rear side of the upper surface of the multi-directional vibration table (1). The insertion and extraction force adjustment mechanism (6) is used to adjust the upward pulling force of the docking wire harness (5).

2. The clamping device for plugging and unplugging detection of an automobile connector system according to claim 1, characterized in that: The surface of the workbench (11) is provided with an arc-shaped boss (13), and the arc-shaped boss (13) is placed parallel to the two track bars (12). A turntable (14) is rotatably mounted on one side of the surface of the workbench (11), and the bottom of the turntable (14) is mounted on a motor. A slide groove (15) is provided on one side of the upper surface of the turntable (14), and a threaded rod (16) is rotatably mounted inside the slide groove (15). A moving block (17) is screwed on the surface of the threaded rod (16).

3. The clamping device for plugging and unplugging detection of an automobile connector system according to claim 2, characterized in that: A connecting rod (113) is hinged on the surface of the moving block (17), and the end of the connecting rod (113) is hinged on the slide (18). A through groove (110) is opened at the center of the surface of the slide (18), and the through groove (110) is placed on the arc-shaped boss (13). A limiting plate (111) is installed on the top of the fixing bolt (19), and a first spring (112) is sleeved on the surface of the fixing bolt (19). The first spring (112) is placed between the limiting plate (111) and the lifting plate (21).

4. The clamping device for plugging and unplugging detection of an automobile connector system according to claim 3, characterized in that: A fixing column (24) is installed at the center of the bottom of the lifting plate (21), and the fixing column (24) passes through the through slot (110). A roller (25) is rotatably installed at the bottom of the fixing column (24), and the roller (25) contacts the surface of the arc-shaped boss (13).

5. The clamping device for plugging and unplugging detection of an automobile connector system according to claim 1, characterized in that: 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 wheel (27) is provided on the outer circumference of the rotating seat (26), a worm (210) is rotatably installed inside the housing (23), and the worm (210) and the worm wheel (27) are meshed with each other.

6. The clamping device for plugging and unplugging detection of an automobile connector system according to claim 1, characterized in that: The upper surface of the rotating seat (26) is symmetrically mounted with pressure plates (29) via 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 joint body (4).

7. The clamping device for plugging and unplugging detection of an automobile connector system according to claim 5, characterized in that: The rotation angle limiting mechanism (3) includes a first toothed disc (31) fixed to one end of the housing (23) and a slide rod (32) slidingly passing through the worm (210), the surface of the slide rod (32) is symmetrically provided with protrusions (33), the interior of the worm (210) is symmetrically provided with grooves adapted to the protrusions (33), one end of the slide rod (32) is provided with a second toothed disc (34), and the other end of the slide rod (32) is provided with a knob (35), the second toothed disc (34) and the first toothed disc (31) are adapted to each other, the surface of the slide rod (32) is sleeved with a second spring (36), and the second spring (36) is placed between the housing (23) and the knob (35).

8. The clamping device for plugging and unplugging detection of an automobile connector system according to claim 1, characterized in that: The plugging and pulling force adjustment mechanism (6) comprises a column (61) fixed to 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); a telescopic rod (63) is slidably mounted on the front end of the swing rod (62); a fixing cylinder (64) is vertically arranged at the end of the telescopic rod (63); the docking wire harness (5) passes through the fixing cylinder (64); a locking bolt (65) is screwed on the surface of the fixing cylinder (64); and the docking wire harness (5) is fixed to the fixing cylinder (64) by the locking bolt (65).

9. The clamping device for plugging and unplugging detection of an automobile connector system according to claim 8, characterized in that: A rotating head (66) is installed at the rear end of the swing rod (62), a hanging rod (67) is connected to the bottom of the rotating head (66), and a counterweight (68) is installed below the surface of the hanging rod (67).

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