An opening and closing durability testing device for automobile door handle assemblies

Abstract

A device for testing the opening and closing durability of a car door handle assembly relates to the technical field of testing car door handle assemblies, comprising a horizontally arranged testing platform, a rotating tube provided for rotation vertically penetrating the top of the testing platform, a rotating column provided coaxially in the rotating tube and rotatably connected to the inner wall thereof, the top of the rotating column extending upward to the outside of the rotating tube, a vertically arranged support box provided fixedly provided on the outer wall of the rotating column outside the rotating tube, a connecting shaft positioning assembly and a card strip positioning assembly provided at the end of the support box for positioning the connecting shaft at the rotating end and the card strip at the swinging end of the car door handle assembly respectively. The present invention solves the problems of large deviation between the simulated use process and the actual use process when testing the car door handle assembly in the existing car door handle assembly testing equipment; the problem of large difference between the stress conditions of the car door handle assembly during testing and the stress conditions during actual use; and the problem of cumbersome assembly process of the car door handle assembly and the testing equipment.

Description

Technical Field

[0001] The invention relates to the technical field of automobile door handle assembly detection, and in particular to an opening and closing durability detection device for automobile door handle assemblies. Background Art

[0002] The automobile door handle assembly refers to the handle or grip installed on the outside of the automobile door, which is used to open and close the door. It is an important part of the automobile and provides a convenient way to enter and exit the vehicle. The automobile door handle assembly is an external accessory of the automobile and plays an important role in the use of the vehicle. The number of pulls it can withstand has become an important indicator for judging its quality. At present, when manufacturing automobile door handle assemblies, it is necessary to conduct an opening and closing durability test on the automobile door handle assembly in order to judge the quality of the same batch of products. The so-called opening and closing durability test is to repeatedly open and close the automobile door handle assembly to determine the maximum number of pulls of the automobile door handle assembly.

[0003] The existing automobile door handle assembly testing equipment has gradually exposed its shortcomings during use, mainly in the following aspects:

[0004] First, when testing the automobile door handle assembly, there is a large deviation between the simulated use process and the actual use process, resulting in a low accuracy rate of the test results. Specifically, when the existing testing equipment tests the automobile door handle assembly, the rotating end of the automobile door handle assembly is first rotatably mounted on the testing equipment, and then the automobile door handle assembly is reciprocated by a pulling mechanism to simulate the opening and closing of the automobile door for an opening and closing durability test. However, in the actual process of opening and closing the door, after the automobile door handle assembly is pulled to the maximum opening and closing angle, the door is released from the restriction on the frame and rotates with the automobile door handle assembly until the door is fully opened. During this process, the automobile door handle assembly will be reset to a position that fits the automobile door, and the driver and passengers will close the door from the inside after entering the car. It can be seen that The existing testing equipment only simulates the pulling process before the door is released from the restriction, and lacks the process of rotating the door after the door is opened. In addition, the maximum opening and closing angle of the door handle assembly when being pulled during testing is random, and it is impossible to accurately simulate the maximum opening and closing angle of the door handle assembly during actual use. Moreover, when testing, the pulling process and the resetting process of the door handle assembly of the existing testing equipment both require the use of an external force by a pulling mechanism. During actual use, the driver and passengers enter the car and close the door from the inside. During the closing process of the door, the door handle assembly is not subjected to any external force. In summary, the existing testing equipment has a large deviation between the simulated use process and the actual use process when testing the door handle assembly of the car, which leads to a low accuracy rate of the test results.

[0005] Second, there is a big difference between the stress conditions of the automobile door handle assembly during testing and those during actual use, which affects the test results of the automobile door handle assembly. Specifically, the pulling mechanism in the existing testing equipment usually uses a pull plate or a pull rod to pull the automobile door handle assembly to rotate. During the rotation of the automobile door handle assembly, the pull plate or the pull rod and the automobile door handle assembly slide relative to each other. When the automobile door handle assembly is actually pulled, the four fingers of the driver's right palm hold the automobile door handle assembly and the thumb presses on the outer wall of the automobile door handle assembly. During the process of the driver's and the passenger pulling the automobile door handle assembly to rotate, the palm and the automobile door handle assembly do not slide relative to each other. It can be seen that the stress conditions of the automobile door handle assembly during testing are different from those during actual use, and the automobile door handle assembly may be damaged during the relative sliding of the pull plate or the pull rod and the automobile door handle assembly, which affects the test results of the automobile door handle assembly.

[0006] Third, the assembly process of the automobile door handle assembly and the testing equipment is cumbersome. Specifically, when assembling the automobile door handle assembly and the testing equipment, the staff needs to use different installation tools to successively connect the rotating end and the force-bearing area of ​​the automobile door handle assembly to the testing equipment and the pulling mechanism therein. Therefore, the assembly process of the automobile door handle assembly and the testing equipment is cumbersome.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0008] In view of the defects in the prior art, the technical problem to be solved by the present invention is to provide an opening and closing durability testing device for an automobile door handle assembly, wherein the simulated use process of the opening and closing durability testing device for the automobile door handle assembly can be closely matched to the actual use process to a great extent, thereby reducing the deviation between the simulated use process and the actual use process and improving the accuracy of the test results of the automobile door handle assembly;

[0009] When testing the automobile door handle assembly, the device can simulate the actual process of force applied by fingers to the automobile door handle assembly, thereby reducing the difference between the force applied to the automobile door handle assembly during the test and the force applied during actual use, and improving the accuracy of the test results of the automobile door handle assembly;

[0010] The device can also be quickly and automatically assembled with the automobile door handle assembly, which simplifies the assembly process of the automobile door handle assembly and the testing equipment and improves the practicality of the equipment.

[0011] To solve the above problems, the present invention provides the following technical solutions:

[0012] A device for testing the opening and closing durability of an automobile door handle assembly comprises a horizontally arranged testing platform, a rotating tube arranged to rotate is vertically penetrated at the top of the testing platform, a rotating column arranged to rotate with its inner wall is coaxially arranged in the rotating tube, the top of the rotating column extends upward to the outside of the rotating tube, a vertically arranged supporting box is fixedly arranged at a position where the outer wall of the rotating column is located outside the rotating tube, a connecting shaft positioning component and a card strip positioning component are respectively provided at the end of the supporting box for positioning the connecting shaft of the rotating end of the automobile door handle assembly and the card strip of the swinging end, a stop component is provided on the side wall of the supporting box for stopping it, the card strip positioning component is connected to the stop component through a linkage component, an imitation key seat matched with the automobile door handle assembly is fixedly arranged at the end of the supporting box, a horizontally arranged supporting plate is fixedly arranged at the position where the outer wall of the rotating tube is located above the testing platform, a pulling component for pulling the automobile door handle assembly and resetting the supporting box is provided at the top of the supporting plate, and an electronic counter for recording the number of rotations of the supporting box is provided at the top of the testing platform;

[0013] The card strip positioning assembly comprises a vertically arranged swinging U-shaped plate, the inner wall of the swinging U-shaped plate is fixedly provided with a horizontally arranged limit plate, the top of the limit plate is penetrated with a positioning hole, the inner wall of the swinging U-shaped plate is located above the limit plate and is vertically slidably provided with a sliding plate, the bottom of the sliding plate is fixedly provided with a positioning rod coaxially arranged with the positioning hole, the bottom of the positioning rod is a conical structure, the end of the swinging U-shaped plate is fixedly provided with two arc columns coaxially arranged with the rotating column, one end of the arc column penetrates the support box and is fixedly connected to the limit circular plate, the arc column is slidably connected with the support box, the arc column is provided with an arc spring, and the two ends of the arc spring are correspondingly against the limit circular plate and the support box;

[0014] The stop assembly comprises a rotating circular plate rotatably connected to the side wall of the supporting box, an arc groove is provided at the end of the rotating circular plate, one end of the arc groove extends outward and penetrates the rotating circular plate, a vertically arranged fixed plate is fixed on the top of the detection platform, a connecting rod with a sliding arrangement is horizontally penetrated at the end of the fixing plate, one end of the connecting rod extends into the arc groove and is fitted with a rotating roller that is rotatably arranged, the rotating roller contacts the inner wall of the arc groove, one end of the rotating roller is a truncated cone-shaped structure, and a vertically arranged stop plate is fixed on the top of the detection platform;

[0015] The rotating circular plate is connected to the swinging U-shaped plate through a linkage assembly. When the automobile door handle assembly is pulled to the maximum opening and closing angle by the pulling assembly, the rotating roller is located in the through end of the arc groove, and the support box is released from restriction.

[0016] As an optimized solution, the linkage assembly includes a supporting cross plate horizontally fixed to the inner wall of a supporting box, the top of the supporting cross plate is vertically penetrated by a rotatable upper transmission shaft, the top and bottom of the upper transmission shaft are respectively fixed with a transition gear and a driving bevel gear, a lower transmission shaft arranged to rotate along a horizontal line is provided in the supporting box, the two ends of the lower transmission shaft are rotatably connected to the relative inner walls of the supporting box, the outer wall of the lower transmission shaft is fixedly sleeved with a driven bevel gear meshing with the driving bevel gear, one end of the lower transmission shaft passes through the supporting box and is fixedly connected to the rotating circular plate, the end of the swing U-shaped plate is located between the two arc columns and is fixedly connected with an arc rack coaxially arranged with the rotating column, the opposite ends of the supporting box are penetrated by avoidance grooves, one end of the arc rack passes through the avoidance groove and passes through the supporting box, and the arc rack meshes with the transition gear.

[0017] As an optimized solution, the pulling assembly includes a horizontally arranged lifting plate, the top of the support plate is fixedly provided with two vertically arranged electric-controlled telescopic cylinders, the telescopic ends of the electric-controlled telescopic cylinders are fixedly connected to the lifting plate, and a first fixed L-shaped plate and a second fixed L-shaped plate are respectively provided at positions on the left and right sides above the lifting plate, the first fixed L-shaped plate and the second fixed L-shaped plate are arranged opposite to each other, the top of the lifting plate is fixedly provided with two horizontally arranged two-way telescopic cylinders, the two telescopic ends of the two-way telescopic cylinders are correspondingly fixedly connected to the first fixed L-shaped plate and the second fixed L-shaped plate, the tops of the first fixed L-shaped plate and the second fixed L-shaped plate are both fixedly provided with vertically arranged fixing columns, the number of fixing columns on the first fixed L-shaped plate is one, the number of fixing columns on the second fixed L-shaped plate is four, and the arrangement mode of the four fixing columns is the same as the shape of the inner side wall of the automobile door handle assembly, the outer walls of the fixing columns are fixedly paved with sponge pads, and the ends of the second fixed L-shaped plate are fixedly provided with two horizontally arranged fixing rods.

[0018] As an optimized solution, the connecting shaft positioning assembly includes two vertically arranged fixed blocks, the fixed blocks are fixedly connected to the end of the supporting box, the tops of the fixed blocks are penetrated by a circular groove coaxially arranged with the rotating column, the circular groove is coaxially provided with a positioning cylinder vertically slidably connected to the inner wall thereof, the open ends of the two positioning cylinders are arranged facing each other and are both inclined structures, the bottom of the fixed block located above and the top of the fixed block located below are both provided with guide grooves, one end of the guide groove is connected to the circular groove, and the other end of the guide groove extends horizontally to the end face of the fixed block.

[0019] As an optimized solution, a driven gear is fixedly mounted on the outer wall of the rotating tube below the detection platform, and a driving gear meshing with the driven gear is rotatably mounted on the bottom of the detection platform.

[0020] As an optimized solution, a speed regulating motor is fixedly provided on the top of the detection platform, and the output end of the speed regulating motor passes through the detection platform and is fixedly connected to the driving gear.

[0021] As an optimized solution, a vertically arranged lifting and telescopic cylinder is fixedly provided on the inner top of the swing U-shaped plate, and the telescopic end of the lifting and telescopic cylinder is fixedly connected to the sliding plate.

[0022] As an optimized solution, a horizontally arranged driving telescopic cylinder is fixedly provided at the end of the fixed plate, the telescopic end of the driving telescopic cylinder is fixedly connected to a connecting plate, and the other end of the connecting rod is fixedly connected to the connecting plate.

[0023] As an optimized solution, a vertically arranged pneumatic telescopic cylinder is fixedly provided on the top of the fixing block located above and the bottom of the fixing block located below, and the telescopic end of the pneumatic telescopic cylinder is fixedly connected to the positioning cylinder.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. When assembling the automobile door handle assembly and the equipment, first insert the connecting shaft of the automobile door handle assembly into the circular groove along the guide groove, and the two pneumatic telescopic cylinders drive the two positioning cylinders to slide toward each other, and the two connecting shafts enter the open ends of the two positioning cylinders respectively until the open ends of the positioning cylinders contact the rotating ends of the automobile door handle assembly, and then rotate the automobile door handle assembly until the clamping strip abuts against the inner wall of the swing U-shaped plate, and the lifting and telescopic cylinder drives the sliding plate and the positioning rod to move downward, and the conical end of the positioning rod passes through the groove of the clamping strip and enters the positioning hole, thus completing the assembly of the automobile door handle assembly and the equipment. The equipment can be quickly and automatically assembled with the automobile door handle assembly, which simplifies the assembly process of the automobile door handle assembly and the testing equipment and improves the practicality of the equipment;

[0026] 2. When testing the automobile door handle assembly, the electric telescopic cylinder drives the lifting plate and the fixed column to move upward until a fixed column on the first fixed L-shaped plate and four fixed columns on the second fixed L-shaped plate are distributed on the outer wall side and the inner wall side of the automobile door handle assembly, and the two telescopic ends of the two-way telescopic cylinder shrink until the sponge pad on the fixed column abuts against the outer wall or inner wall of the automobile door handle assembly to restrict the automobile door handle assembly, and the speed regulating motor drives the driving gear, the driven gear, the rotating tube and the supporting plate to rotate, and then drives the lifting plate, the first fixed L-shaped plate and the second fixed L-shaped plate to rotate. Under the pull of the fixed column, the automobile door handle assembly rotates, and then drives the swing U-shaped plate and the arc column to rotate, the arc spring is compressed, and the swing U-shaped plate is in The arc-shaped rack is driven to rotate when rotating, and the rotating circular plate is rotated under the transmission of the transition gear, the upper transmission shaft, the driving bevel gear, the driven bevel gear and the lower transmission shaft. When the automobile door handle assembly is pulled to the maximum opening and closing angle by the fixed column, the rotating roller is located in the through end of the arc-shaped groove, the support box is released from the restriction, and the fixed column continues to pull the automobile door handle assembly to rotate. At the same time, the support box and the rotating circular plate rotate synchronously around the rotating column. When the rotating roller moves along the through end of the arc-shaped groove to the outside of the rotating circular plate, the arc spring is reset, and the support box accelerates to rotate toward the automobile door handle assembly until it is against the swing U-shaped plate. The rotating circular plate is reset under the transmission of the transition gear, the upper transmission shaft, the driving bevel gear, the driven bevel gear and the lower transmission shaft, and the fixed column continues to pull the automobile door handle assembly. The two telescopic ends of the two-way telescopic cylinder are extended, and the first fixed L-shaped plate and the second fixed L-shaped plate move back to back until the two fixed rods contact the support box. At this time, the restriction of the car door handle assembly is released, and the speed regulating motor drives the rotating tube, the support plate and the fixed rod to rotate in the opposite direction, thereby pushing the support box to rotate in the opposite direction. The reset is completed when the support box abuts against the stop plate. During the reset process, the fixed column does not contact the car door handle assembly. After the rotating roller separates from the rotating circular plate, the telescopic cylinder is driven to drive the connecting plate, the connecting rod and the rotating roller to move in the direction close to the fixed plate. After the support box is reset, the telescopic cylinder is driven to drive the connecting rod and the rotating roller to move into the arc groove to limit the support box. , repeating the above operation can repeatedly simulate the detection of the automobile door handle assembly, and the number of simulations is recorded by an electronic counter. It can be seen that the device can simulate the pulling process of the automobile door handle assembly rotating together with the car door after the restriction of the car door is released, and can accurately simulate the maximum opening and closing angle of the automobile door handle assembly during actual use. Moreover, the automobile door handle assembly is not subjected to any thrust during the resetting process, which is completely consistent with the situation when the car door is closed from the inside of the car during actual use. Therefore, when the device performs the opening and closing durability test on the automobile door handle assembly, the simulated use process can fit the actual use process to a great extent, reducing the deviation between the simulated use process and the actual use process, and improving the accuracy of the detection results of the automobile door handle assembly;

[0027] 3. Through a fixed column on the first fixed L-shaped plate and four fixed columns on the second fixed L-shaped plate, the force applied by the five fingers of the right palm of the driver and passenger to the outer wall and the inner wall of the automobile door handle assembly can be accurately simulated, and the fixed column and the automobile door handle assembly do not slide relative to each other during the pulling process of the automobile door handle assembly. Therefore, when the device detects the automobile door handle assembly, it can simulate the force applied by the fingers to the automobile door handle assembly in the actual process, reducing the difference between the force applied by the automobile door handle assembly during the detection process and the force applied during the actual use process, and improving the accuracy of the detection results of the automobile door handle assembly;

[0028] 4. By adjusting the speed of the speed regulating motor, different door opening speeds can be simulated, which improves the comprehensiveness of the detection of automobile door handle components. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the linkage assembly of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the automobile door handle assembly of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the end of the support box of the present invention;

[0034] Figure 5 It is a schematic structural diagram of the side wall of the support box of the present invention;

[0035] Figure 6 It is a structural schematic diagram of the fixing plate of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure inside the swing U-shaped plate of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the pulling assembly of the present invention;

[0038] Fig. 9 It is a schematic structural diagram of the automobile door handle assembly of the present invention when being clamped;

[0039] Fig.10 It is a structural schematic diagram of the connecting shaft positioning assembly of the present invention;

[0040] Fig.11 It is a schematic structural diagram of the automobile door handle assembly of the present invention when it is pulled to the maximum opening and closing angle;

[0041] Fig.12 It is a schematic diagram of the structure of the present invention when simulating the opening of a vehicle door.

[0042] In the figure: 1-testing table; 2-rotating tube; 3-rotating column; 4-car door handle assembly; 5-connecting shaft positioning assembly; 6-support box; 7-card strip positioning assembly; 8-imitation key holder; 9-stop assembly; 10-electronic counter; 11-pulling assembly; 12-support plate; 13-lower transmission shaft; 14-driving bevel gear; 15-transition gear; 16-linkage assembly; 17-avoidance groove; 18-arc rack; 19-support cross plate; 20-upper transmission shaft; 21-driven bevel gear; 22-card strip; 23-connecting shaft; 24-limiting plate; 25-positioning hole; 26-positioning rod; 27-sliding plate; 28-lifting and telescopic cylinder; 2 9-swinging U-shaped plate; 30-pneumatic telescopic cylinder; 31-positioning cylinder; 32-circular groove; 33-fixed block; 34-speed regulating motor; 35-driving gear; 36-driven gear; 37-guide groove; 38-stop plate; 39-arc groove; 40-limiting circular plate; 41-arc spring; 42-arc column; 43-rotating circular plate; 44-driving telescopic cylinder; 45-connecting plate; 46-connecting rod; 47-fixed plate; 48-rotating roller; 49-lifting plate; 50-bidirectional telescopic cylinder; 51-first fixed L-shaped plate; 52-fixed column; 53-sponge pad; 54-second fixed L-shaped plate; 55-fixed rod; 56-electrically controlled telescopic cylinder. DETAILED DESCRIPTION

[0043] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0044] like Figures 1 to 12As shown, an opening and closing durability testing device for automobile door handle components comprises a horizontally arranged testing platform 1, a rotating tube 2 arranged to rotate is vertically penetrated on the top of the testing platform 1, a rotating column 3 rotatably connected to the inner wall of the rotating tube 2 is coaxially arranged inside the rotating tube 2, the top of the rotating column 3 extends upward to the outside of the rotating tube 2, and a vertically arranged supporting box 6 is fixedly arranged at a position on the outer wall of the rotating column 3 located outside the rotating tube 2, and a connecting shaft positioning component 5 and a card strip positioning component 6 are respectively provided at the end of the supporting box 6 for positioning the connecting shaft 23 at the rotating end of the automobile door handle component 4 and the card strip 22 at the swinging end. The side wall of the support box 6 is provided with a stop assembly 9 for stopping it, the card strip positioning assembly 7 is connected to the stop assembly 9 through a linkage assembly 16, the end of the support box 6 is fixedly provided with an imitation key seat 8 that matches the car door handle assembly 4, the outer wall of the rotating tube 2 is located above the detection platform 1 and is fixedly provided with a horizontally arranged support plate 12, the top of the support plate 12 is provided with a pulling assembly 11 for pulling the car door handle assembly 4 and resetting the support box 6, and the top of the detection platform 1 is provided with an electronic counter 10 for recording the number of rotations of the support box 6;

[0045] The card strip positioning assembly 7 includes a vertically arranged swing U-shaped plate 29, the inner wall of the swing U-shaped plate 29 is fixedly provided with a horizontally arranged limit plate 24, the top of the limit plate 24 is penetrated with a positioning hole 25, the inner wall of the swing U-shaped plate 29 is located above the limit plate 24 and is vertically slidably provided with a sliding plate 27, the bottom of the sliding plate 27 is fixedly provided with a positioning rod 26 coaxially arranged with the positioning hole 25, the bottom of the positioning rod 26 is a conical structure, and the end of the swing U-shaped plate 29 is fixedly provided with two arc columns 42 coaxially arranged with the rotating column 3, one end of the arc column 42 penetrates the support box 6 and is fixedly connected to the limit circular plate 40, the arc column 42 is slidably connected with the support box 6, and an arc spring 41 is mounted on the arc column 42, and the two ends of the arc spring 41 are correspondingly against the limit circular plate 40 and the support box 6;

[0046] The stop assembly 9 includes a rotating circular plate 43 rotatably connected to the side wall of the support box 6, an arc groove 39 is provided at the end of the rotating circular plate 43, one end of the arc groove 39 extends outward and penetrates the rotating circular plate 43, a vertically arranged fixed plate 47 is fixedly provided on the top of the detection platform 1, a slidably arranged connecting rod 46 is horizontally penetrated at the end of the fixed plate 47, one end of the connecting rod 46 extends into the arc groove 39 and is fitted with a rotatably arranged rotating roller 48, the rotating roller 48 contacts the inner wall of the arc groove 39, one end of the rotating roller 48 is a truncated cone structure, and a vertically arranged stop plate 38 is fixedly provided on the top of the detection platform 1;

[0047] The rotating circular plate 43 is connected to the swing U-shaped plate 29 through the linkage assembly 16. When the automobile door handle assembly 4 is pulled to the maximum opening and closing angle by the pulling assembly 11, the rotating roller 48 is located in the through end of the arc groove 39, and the support box 6 is released from the restriction;

[0048] When assembling the automobile door handle assembly 4 with the equipment, firstly, the connecting shaft 23 of the automobile door handle assembly 4 is quickly assembled with the equipment through the connecting shaft positioning assembly 5, and then the automobile door handle assembly 4 is rotated until the clamping strip 22 abuts against the inner wall of the swing U-shaped plate 29, and the sliding plate 27 drives the positioning rod 26 to move downward, and the conical end of the positioning rod 26 passes through the groove of the clamping strip 22 and enters into the positioning hole 25, so that the assembly of the automobile door handle assembly 4 with the equipment is completed. The equipment can be quickly and automatically assembled with the automobile door handle assembly 4, which simplifies the assembly process of the automobile door handle assembly 4 and the detection equipment and improves the practicality of the equipment;

[0049] When the automobile door handle assembly 4 is tested, the pulling assembly 11 restricts the automobile door handle assembly 4, the rotating tube 2 drives the support plate 12 and the pulling assembly 11 to rotate, and the automobile door handle assembly 4 rotates under the drive of the pulling assembly 11, thereby driving the swing U-shaped plate 29 and the arc column 42 to rotate, and the arc spring 41 is compressed. Under the transmission of the linkage assembly 16, the rotating circular plate 43 rotates. When the automobile door handle assembly 4 is pulled to the maximum opening and closing angle by the pulling assembly 11, the rotating roller 48 is located in the through end of the arc groove 39, the support box 6 is released from the restriction, and the pulling assembly 11 is pulled to the maximum opening and closing angle. The moving assembly 11 continues to pull the automobile door handle assembly 4 to rotate, and at the same time, the support box 6 and the rotating circular plate 43 rotate synchronously around the rotating column 3. When the rotating roller 48 moves along the through end of the arc groove 39 to the outside of the rotating circular plate 43, the arc spring 41 is reset, and the support box 6 accelerates to rotate toward the automobile door handle assembly 4 until it abuts against the swing U-shaped plate 29. The rotating circular plate 43 is reset under the transmission of the linkage assembly 16, and the pulling assembly 11 continues to pull the automobile door handle assembly 4 and the support box 6 to rotate until it rotates to the angle when the door is opened in the actual process, and then the pulling assembly 11 The restriction on the automobile door handle assembly 4 is released and it contacts the support box 6. The rotating tube 2 drives the support plate 12 to rotate in the opposite direction. Under the cooperation of the pulling assembly 11, the support box 6 and the automobile door handle assembly 4 rotate in the opposite direction until they are completely reset. During the reset process, the pulling assembly 11 does not contact the automobile door handle assembly 4. After the rotating roller 48 is separated from the rotating circular plate 43, the connecting rod 46 drives the rotating roller 48 to move toward the fixed plate 47. After the support box 6 is reset, the connecting rod 46 drives the rotating roller 48 to move into the arc groove 39. It can be seen that the device can simulate the automobile door handle The hand assembly 4 rotates together with the door when the restriction is released, and can accurately simulate the maximum opening and closing angle of the door handle assembly 4 during actual use. The door handle assembly 4 is not subjected to any thrust during the resetting process, which is completely consistent with the situation when the door is closed from inside the car during actual use. Therefore, when the device performs opening and closing durability test on the door handle assembly 4, the simulated use process can fit the actual use process to the greatest extent, reducing the deviation between the simulated use process and the actual use process, and improving the accuracy of the test results of the door handle assembly 4.

[0050] The linkage assembly 16 includes a supporting cross plate 19 horizontally fixed to the inner wall of the supporting box 6, and an upper transmission shaft 20 that is rotatably arranged is vertically penetrated through the top of the supporting cross plate 19. The top and bottom of the upper transmission shaft 20 are respectively fixedly connected to the transition gear 15 and the driving bevel gear 14. A lower transmission shaft 13 that is rotatably arranged along a horizontal line is provided in the supporting box 6, and the two ends of the lower transmission shaft 13 are correspondingly rotatably connected to the relative inner walls of the supporting box 6. The outer wall of the lower transmission shaft 13 is fixedly sleeved with a driven bevel gear 21 that meshes with the driving bevel gear 14. One end of the lower transmission shaft 13 passes through the supporting box 6 and is fixedly connected to the rotating circular plate 43. The end of the swing U-shaped plate 29 is located between the two arc columns 42 and is fixedly connected to an arc rack 18 that is coaxially arranged with the rotating column 3. The opposite ends of the supporting box 6 are penetrated by avoidance grooves 17. One end of the arc rack 18 passes through the avoidance groove 17 and passes through the supporting box 6, and the arc rack 18 meshes with the transition gear 15.

[0051] The pulling assembly 11 includes a horizontally arranged lifting plate 49, two vertically arranged electric-controlled telescopic cylinders 56 are fixedly arranged on the top of the support plate 12, and the telescopic ends of the electric-controlled telescopic cylinders 56 are fixedly connected to the lifting plate 49. A first fixed L-shaped plate 51 and a second fixed L-shaped plate 54 are respectively arranged on the left and right sides above the lifting plate 49, and the first fixed L-shaped plate 51 and the second fixed L-shaped plate 54 are arranged opposite to each other. Two horizontally arranged two-way telescopic cylinders 50 are fixedly arranged on the top of the lifting plate 49, and the two telescopic ends of the two-way telescopic cylinders 50 correspond to the first fixed L The plate 51 and the second fixed L-shaped plate 54 are fixedly connected, and the tops of the first fixed L-shaped plate 51 and the second fixed L-shaped plate 54 are fixedly provided with vertically arranged fixing columns 52. The number of the fixing columns 52 on the first fixed L-shaped plate 51 is one, and the number of the fixing columns 52 on the second fixed L-shaped plate 54 is four, and the arrangement of the four fixing columns 52 is the same as the shape of the inner wall of the automobile door handle assembly 4. The outer walls of the fixing columns 52 are fixedly paved with sponge pads 53, and the ends of the second fixed L-shaped plate 54 are fixedly provided with two horizontally arranged fixing rods 55;

[0052] When restricting the automobile door handle assembly 4, the electric control telescopic cylinder 56 drives the lifting plate 49 and the fixed column 52 to move upward until the one fixed column 52 on the first fixed L-shaped plate 51 and the four fixed columns 52 on the second fixed L-shaped plate 54 are distributed on the outer wall side and the inner wall side of the automobile door handle assembly 4, and the two telescopic ends of the two-way telescopic cylinder 50 are retracted until the sponge pad 53 on the fixed column 52 is against the outer wall or the inner wall of the automobile door handle assembly 4. Through the one fixed column 52 on the first fixed L-shaped plate 51 and the four fixed columns 52 on the second fixed L-shaped plate 54, the force applied by the five fingers of the right palm of the driver and the passenger to the outer wall and the inner wall of the automobile door handle assembly 4 can be accurately simulated, and in the process of pulling the automobile door handle assembly 4, the fixed column 52 and the automobile door handle assembly 4 do not slide relative to each other. Therefore, when the device detects the automobile door handle assembly 4, it can simulate the force applied by the fingers to the automobile door handle assembly 4 in the actual process, thereby reducing the difference between the force applied by the automobile door handle assembly 4 during the detection process and the force applied during the actual use process, and improving the accuracy of the detection result of the automobile door handle assembly 4;

[0053] When the support box 6 is reset, the two telescopic ends of the two-way telescopic cylinder 50 are extended, and the first fixed L-shaped plate 51 and the second fixed L-shaped plate 54 move back to back until the two fixed rods 55 contact the support box 6. At this time, the restriction of the automobile door handle assembly 4 is released, and the rotating tube 2 drives the support plate 12, the lifting plate 49 and the fixed rod 55 to rotate, thereby driving the support box 6 to rotate, and the support box 6 is reset when it abuts against the stop plate 38.

[0054] The connecting shaft positioning assembly 5 includes two vertically arranged fixing blocks 33, which are fixedly connected to the ends of the supporting box 6. The tops of the fixing blocks 33 are penetrated by circular grooves 32 coaxially arranged with the rotating column 3, and the circular grooves 32 are coaxially provided with positioning cylinders 31 vertically slidably connected with the inner wall thereof. The opening ends of the two positioning cylinders 31 are arranged facing each other and are both inclined structures. The bottom of the upper fixing block 33 and the top of the lower fixing block 33 are both provided with guide grooves 37, one end of which is connected with the circular groove 32, and the other end of which extends horizontally to the end face of the fixing block 33.

[0055] When assembling the connecting shaft 23 of the automobile door handle assembly 4 with the equipment, the connecting shaft 23 of the automobile door handle assembly 4 is inserted into the circular groove 32 along the guide groove 37, and the two positioning cylinders 31 slide toward each other. The two connecting shafts 23 respectively enter into the open ends of the two positioning cylinders 31 until the open ends of the positioning cylinders 31 contact with the rotating end of the automobile door handle assembly 4. At this point, the assembly of the rotating end of the automobile door handle assembly 4 with the equipment is completed.

[0056] A driven gear 36 is fixedly mounted on the outer wall of the rotating tube 2 below the detection platform 1 , and a driving gear 35 meshing with the driven gear 36 is rotatably mounted on the bottom of the detection platform 1 .

[0057] A speed regulating motor 34 is fixedly provided on the top of the testing platform 1 , and an output end of the speed regulating motor 34 passes through the testing platform 1 and is fixedly connected to a driving gear 35 .

[0058] A vertically arranged lifting and telescopic cylinder 28 is fixedly provided on the inner top of the swing U-shaped plate 29 , and the telescopic end of the lifting and telescopic cylinder 28 is fixedly connected to the sliding plate 27 .

[0059] A horizontally arranged driving telescopic cylinder 44 is fixedly provided at the end of the fixed plate 47 . The telescopic end of the driving telescopic cylinder 44 is fixedly connected to a connecting plate 45 . The other end of a connecting rod 46 is fixedly connected to the connecting plate 45 .

[0060] A vertically arranged pneumatic telescopic cylinder 30 is fixedly provided on the top of the upper fixing block 33 and the bottom of the lower fixing block 33 , and the telescopic end of the pneumatic telescopic cylinder 30 is fixedly connected to the positioning cylinder 31 .

[0061] The working principle of this device is:

[0062] When assembling the automobile door handle assembly 4 with the equipment, firstly, the connecting shaft 23 of the automobile door handle assembly 4 is inserted into the circular groove 32 along the guide groove 37, and the two pneumatic telescopic cylinders 30 drive the two positioning cylinders 31 to slide toward each other, and the two connecting shafts 23 respectively enter into the open ends of the two positioning cylinders 31 until the open ends of the positioning cylinders 31 contact the rotating ends of the automobile door handle assembly 4, and then the automobile door handle assembly 4 is rotated until the clamping strip 22 abuts against the inner wall of the swing U-shaped plate 29, and the lifting and telescopic cylinder 28 drives the sliding plate 27 and the positioning rod 26 to move downward, and the conical end of the positioning rod 26 passes through the groove of the clamping strip 22 and enters into the positioning hole 25, and the assembly of the automobile door handle assembly 4 with the equipment is completed. The equipment can be quickly and automatically assembled with the automobile door handle assembly 4, which simplifies the assembly process of the automobile door handle assembly 4 and the detection equipment and improves the practicality of the equipment;

[0063] When testing the automobile door handle assembly 4, the electric-controlled telescopic cylinder 56 drives the lifting plate 49 and the fixed column 52 to move upward until one fixed column 52 on the first fixed L-shaped plate 51 and four fixed columns 52 on the second fixed L-shaped plate 54 are distributed on the outer wall side and the inner wall side of the automobile door handle assembly 4, and the two telescopic ends of the two-way telescopic cylinder 50 shrink until the sponge pad 53 on the fixed column 52 abuts against the outer wall or inner wall of the automobile door handle assembly 4 to restrict the automobile door handle assembly 4, and the speed regulating motor 34 drives the driving gear 35, the driven gear 36, the rotating tube 2 and the supporting plate 12 to rotate, thereby driving the lifting plate 49, the first fixed L-shaped plate 51 and the second fixed L-shaped plate 54 to rotate. Under the pulling of the fixed column 52, the automobile The door handle assembly 4 rotates, thereby driving the swing U-shaped plate 29 and the arc column 42 to rotate, the arc spring 41 is compressed, and the swing U-shaped plate 29 drives the arc rack 18 to rotate when rotating. Under the transmission of the transition gear 15, the upper transmission shaft 20, the driving bevel gear 14, the driven bevel gear 21 and the lower transmission shaft 13, the rotating circular plate 43 rotates. When the automobile door handle assembly 4 is pulled to the maximum opening and closing angle by the fixed column 52, the rotating roller 48 is located in the through end of the arc groove 39, the support box 6 is released from the restriction, and the fixed column 52 continues to pull the automobile door handle assembly 4 to rotate. At the same time, the support box 6 and the rotating circular plate 43 rotate synchronously around the rotating column 3. When the rotating roller 48 moves along the through end of the arc groove 39 to the outside of the rotating circular plate 43, the arc The spring 41 is reset, and the support box 6 is accelerated to rotate toward the automobile door handle assembly 4 until it is against the swing U-shaped plate 29. The rotating circular plate 43 is reset under the transmission of the transition gear 15, the upper transmission shaft 20, the driving bevel gear 14, the driven bevel gear 21 and the lower transmission shaft 13. The fixed column 52 continues to pull the automobile door handle assembly 4 and the support box 6 to rotate until it rotates to the angle when the car door is opened in the actual process. Then, the two telescopic ends of the two-way telescopic cylinder 50 are extended, and the first fixed L-shaped plate 51 and the second fixed L-shaped plate 54 move back to back until the two fixed rods 55 contact the support box 6. At this time, the restriction of the automobile door handle assembly 4 is released, and the speed regulating motor 34 drives the rotating tube 2, the support plate 12 and the fixed rod 55 to rotate in the opposite direction. The support box 6 is pushed to rotate in the opposite direction, and the reset is completed when the support box 6 abuts against the stop plate 38. During the reset process, the fixed column 52 does not contact the automobile door handle assembly 4. After the rotating roller 48 is separated from the rotating circular plate 43, the telescopic cylinder 44 is driven to drive the connecting plate 45, the connecting rod 46 and the rotating roller 48 to move in the direction close to the fixed plate 47. After the support box 6 is reset, the telescopic cylinder 44 is driven to drive the connecting rod 46 and the rotating roller 48 to move into the arc groove 39 to limit the support box 6. Repeating the above operation can repeatedly simulate the detection of the automobile door handle assembly 4, and the number of simulations is recorded by the electronic counter 10. It can be seen that the device can simulate the pulling process of the automobile door handle assembly 4 rotating together with the car door after the restriction of the car door is released.It can also accurately simulate the maximum opening and closing angle of the automobile door handle assembly 4 during actual use, and the automobile door handle assembly 4 is not subjected to any thrust during the resetting process, which is completely consistent with the situation when the door is closed from inside the car during actual use. Therefore, when the device performs opening and closing durability testing on the automobile door handle assembly 4, the simulated use process can fit the actual use process to a great extent, reducing the deviation between the simulated use process and the actual use process, and improving the accuracy of the test results of the automobile door handle assembly 4;

[0064] Through a fixed column 52 on the first fixed L-shaped plate 51 and four fixed columns 52 on the second fixed L-shaped plate 54, the force applied by the five fingers of the right palm of the driver and passenger to the outer wall and the inner wall of the automobile door handle assembly 4 can be accurately simulated, and in the process of pulling the automobile door handle assembly 4, the fixed column 52 and the automobile door handle assembly 4 do not slide relative to each other. Therefore, when the device detects the automobile door handle assembly 4, it can simulate the force applied by the fingers to the automobile door handle assembly 4 in the actual process, thereby reducing the difference between the force applied by the automobile door handle assembly 4 during the detection process and the force applied during the actual use process, and improving the accuracy of the detection result of the automobile door handle assembly 4;

[0065] Different door opening speeds can be simulated by adjusting the rotation speed of the speed regulating motor 34 , thereby improving the comprehensiveness of the detection of the automobile door handle assembly 4 .

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An opening and closing durability testing device for automobile door handle assemblies, characterized in that: The invention comprises a horizontally arranged testing platform (1), wherein a rotating tube (2) is vertically penetrated through the top of the testing platform (1), wherein a rotating column (3) is coaxially arranged inside the rotating tube (2) and is rotatably connected to the inner wall thereof, wherein the top end of the rotating column (3) extends upward to the outside of the rotating tube (2), wherein a vertically arranged supporting box (6) is fixedly arranged on the outer wall of the rotating column (3) at a position outside the rotating tube (2), wherein a connecting shaft positioning component (5) and a card strip positioning component (7) are provided at the end of the supporting box (6) for respectively positioning a connecting shaft (23) at the rotating end and a card strip (22) at the swinging end of the automobile door handle component (4), wherein the side of the supporting box (6) is provided with a connecting shaft positioning component (5) and a card strip positioning component (7) for respectively positioning a connecting shaft (23) at the rotating end and a card strip (22) at the swinging end thereof. The wall is provided with a stop assembly (9) for stopping the vehicle door handle assembly (4); the card strip positioning assembly (7) is connected to the stop assembly (9) via a linkage assembly (16); an imitation key seat (8) matching the vehicle door handle assembly (4) is fixedly provided at the end of the support box (6); a horizontally arranged support plate (12) is fixedly provided at a position above the detection platform (1) on the outer wall of the rotating tube (2); a pulling assembly (11) for pulling the vehicle door handle assembly (4) and resetting the support box (6) is provided on the top of the support plate (1); and an electronic counter (10) for recording the number of rotations of the support box (6) is provided on the top of the detection platform (1); The card strip positioning assembly (7) comprises a vertically arranged swing U-shaped plate (29), the inner wall of the swing U-shaped plate (29) is fixedly provided with a horizontally arranged limit plate (24), the top of the limit plate (24) is penetrated with a positioning hole (25), the inner wall of the swing U-shaped plate (29) is located above the limit plate (24) and is vertically slidably provided with a sliding plate (27), the bottom of the sliding plate (27) is fixedly provided with a positioning rod (26) coaxially arranged with the positioning hole (25), and the positioning rod The bottom of the swing U-shaped plate (26) is a conical structure. Two arc columns (42) coaxially arranged with the rotating column (3) are fixedly provided at the end of the swing U-shaped plate (29). One end of the arc column (42) passes through the support box (6) and is fixedly connected to the limiting circular plate (40). The arc column (42) is slidably connected to the support box (6). An arc spring (41) is mounted on the arc column (42). The two ends of the arc spring (41) are correspondingly abutted against the limiting circular plate (40) and the support box (6). The stop assembly (9) comprises a rotating circular plate (43) rotatably connected to the side wall of the support box (6), an arc groove (39) is provided at the end of the rotating circular plate (43), one end of the arc groove (39) extends outward and penetrates the rotating circular plate (43), a vertically arranged fixed plate (47) is fixedly provided on the top of the detection platform (1), a slidably arranged connecting rod (46) is horizontally penetrated at the end of the fixing plate (47), one end of the connecting rod (46) extends into the arc groove (39) and is sleeved with a rotatably arranged rotating roller (48), the rotating roller (48) is in contact with the inner wall of the arc groove (39), one end of the rotating roller (48) is a truncated cone-shaped structure, and a vertically arranged stop plate (38) is fixedly provided on the top of the detection platform (1); The rotating circular plate (43) is connected to the swinging U-shaped plate (29) via a linkage assembly (16); when the automobile door handle assembly (4) is pulled to a maximum opening and closing angle by the pulling assembly (11), the rotating roller (48) is located within the through end of the arc groove (39), and the support box (6) is released from restriction.

2. The opening and closing durability testing device for an automobile door handle assembly according to claim 1, characterized in that: The linkage assembly (16) comprises a support cross plate (19) horizontally fixed to the inner wall of the support box (6), an upper transmission shaft (20) vertically penetrates the top of the support cross plate (19) and is rotatably arranged, the top and bottom of the upper transmission shaft (20) are respectively fixed to a transition gear (15) and a driving bevel gear (14), a lower transmission shaft (13) rotatably arranged along a horizontal line is arranged in the support box (6), two ends of the lower transmission shaft (13) are correspondingly rotatably connected to the inner wall relative to the support box (6), and an outer wall of the lower transmission shaft (13) is fixedly sleeved with a gear connected to the driving gear. A driven bevel gear (21) meshed with a bevel gear (14), one end of the lower transmission shaft (13) passes through a support box (6) and is fixedly connected to a rotating circular plate (43), an end of the swing U-shaped plate (29) is located between two arc columns (42) and is fixedly connected to an arc rack (18) coaxially arranged with the rotating column (3), opposite ends of the support box (6) are penetrated by avoidance grooves (17), one end of the arc rack (18) passes through the avoidance groove (17) and passes through the support box (6), and the arc rack (18) meshes with a transition gear (15).

3. The opening and closing durability testing device for an automobile door handle assembly according to claim 1, characterized in that: The pulling assembly (11) comprises a lifting plate (49) arranged horizontally, two vertically arranged electrically controlled telescopic cylinders (56) are fixedly provided on the top of the support plate (12), the telescopic ends of the electrically controlled telescopic cylinders (56) are fixedly connected to the lifting plate (49), a first fixed L-shaped plate (51) and a second fixed L-shaped plate (54) are respectively provided on the left and right sides above the lifting plate (49), the first fixed L-shaped plate (51) and the second fixed L-shaped plate (54) are arranged opposite to each other, two horizontally arranged bidirectional telescopic cylinders (50) are fixedly provided on the top of the lifting plate (49), the two telescopic ends of the bidirectional telescopic cylinders (50) are corresponding to the first fixed The L-shaped plate (51) and the second fixed L-shaped plate (54) are fixedly connected; the tops of the first fixed L-shaped plate (51) and the second fixed L-shaped plate (54) are both fixedly provided with vertically arranged fixing columns (52); the number of the fixing columns (52) on the first fixed L-shaped plate (51) is one, the number of the fixing columns (52) on the second fixed L-shaped plate (54) is four, and the arrangement of the four fixing columns (52) is the same as the shape of the inner wall of the automobile door handle assembly (4); the outer walls of the fixing columns (52) are both fixedly provided with sponge pads (53); and the ends of the second fixed L-shaped plate (54) are fixedly provided with two horizontally arranged fixing rods (55).

4. The opening and closing durability testing device for an automobile door handle assembly according to claim 1, characterized in that: The connecting shaft positioning assembly (5) comprises two vertically arranged fixing blocks (33), the fixing blocks (33) being fixedly connected to the ends of the supporting box (6), the tops of the fixing blocks (33) being penetrated by a circular groove (32) coaxially arranged with the rotating column (3), the circular groove (32) being coaxially arranged with a positioning cylinder (31) vertically slidably connected with the inner wall thereof, the opening ends of the two positioning cylinders (31) being arranged facing each other and both being inclined structures, the bottom of the fixing block (33) located above and the top of the fixing block (33) located below being provided with a guide groove (37), one end of the guide groove (37) being connected with the circular groove (32), and the other end of the guide groove (37) extending horizontally to the end face of the fixing block (33).

5. The opening and closing durability testing device for an automobile door handle assembly according to claim 1, characterized in that: A driven gear (36) is fixedly sleeved on the outer wall of the rotating tube (2) at a position below the detection platform (1), and a driving gear (35) meshing with the driven gear (36) is rotatably provided at the bottom of the detection platform (1).

6. The opening and closing durability testing device for an automobile door handle assembly according to claim 5, characterized in that: A speed regulating motor (34) is fixedly provided on the top of the detection platform (1), and an output end of the speed regulating motor (34) passes through the detection platform (1) and is fixedly connected to a driving gear (35).

7. The opening and closing durability testing device for an automobile door handle assembly according to claim 1, characterized in that: A vertically arranged lifting and telescopic cylinder (28) is fixedly provided on the inner top of the swing U-shaped plate (29), and a telescopic end of the lifting and telescopic cylinder (28) is fixedly connected to the sliding plate (27).

8. The opening and closing durability testing device for an automobile door handle assembly according to claim 1, characterized in that: A horizontally arranged driving telescopic cylinder (44) is fixedly provided at the end of the fixed plate (47), the telescopic end of the driving telescopic cylinder (44) is fixedly connected to a connecting plate (45), and the other end of the connecting rod (46) is fixedly connected to the connecting plate (45).

9. The opening and closing durability testing device for an automobile door handle assembly according to claim 4, characterized in that: A vertically arranged pneumatic telescopic cylinder (30) is fixedly disposed on the top of the upper fixed block (33) and the bottom of the lower fixed block (33), and a telescopic end of the pneumatic telescopic cylinder (30) is fixedly connected to the positioning cylinder (31).

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