Vehicle door opening and closing durability test bench

Abstract

The utility model discloses a vehicle door opening and closing endurance test bench, a test assembly comprises a support part and a swing arm part, a base is used for being fixedly arranged on a vehicle body, and the lower end part of the support part is fixedly connected with the base. Wherein the swing arm part comprises a swing arm body, a driving part, a pushing part and a dragging part, the pushing part and the dragging part are arranged on the swing arm body at intervals, one end of the swing arm body is rotationally connected to the supporting part around a first axis, and an abutting part is arranged at one end of the pushing part; a driving piece is arranged on the pushing piece and can drive the abutting part to move relative to the swing arm body in the axis direction of the pushing piece; the dragging piece is used for being connected with the inner side of the vehicle door. In the testing process, after the vehicle door is unlocked, the driving piece drives the abutting part to stretch out and push the vehicle door, so that the vehicle door is located at the retaining position, and the situation that the vehicle door to be opened is locked again in the testing process can be avoided. Furthermore, the pushing piece and the dragging piece on the swing arm body drive the vehicle door to be opened and closed, the operation is repeated for many times, and the durability of the vehicle door is tested.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts testing, in particular to a door opening and closing durability test bench. Background Art

[0002] As people's requirements for the comfort of riding in a car are getting higher and higher, the durability of the inner door panel will directly affect the performance of the car door. If the durability of the inner door panel is insufficient, various noises will be produced with the vibration of the car under the action of external force, affecting the comfort of passengers. In the prior art, there is a method of testing the durability of the car door by opening and closing the car door manually, but it is impossible to ensure the speed and force of opening and closing the car door each time. Therefore, the accuracy of the test cannot be guaranteed, and it takes a long time.

[0003] The patent document (publication number CN108827657A) discloses a car door inner opening durability test bench, which includes a bottom plate and a car door. The bottom plate is arranged inside the car door, and a support frame is arranged at the upper end of the bottom plate. A servo motor is fixedly connected to the support frame. The output end of the servo motor is connected to a reducer, and the reducer is fixedly connected to the support frame. The output end of the reducer is connected to a main swing arm, which swings in the horizontal direction. The main swing arm is connected to a secondary swing arm through a rotating joint. The secondary swing arm is provided with a push rod, and a joint bearing is fixedly connected to one end of the push rod away from the secondary swing arm. A connecting block is arranged at the handrail inside the car door, and the joint bearing is hinged to the connecting block. The main swing arm is driven to move by the servo motor to realize the opening and closing of the car door.

[0004] However, when the test bench in the prior art is conducting a door durability test, during the process of opening the door, if the main swing arm fails to push the door open in time after the door is unlocked, the door (such as an electric suction door) may be locked again, making it impossible to open the door. Utility Model Content

[0005] The utility model aims to solve the technical problem that when a test bench in the prior art is conducting a door durability test, during the process of opening the door, if the main swing arm fails to push the door open in time after the door is unlocked, the door may be locked again, resulting in the inability to open the door.

[0006] In order to solve the above technical problems, the embodiment of the utility model discloses a vehicle door opening and closing durability test bench, which is installed in the vehicle body to perform opening and closing durability test on the flat opening door.

[0007] The vehicle door opening and closing durability test bench comprises a base and a test assembly, wherein the test assembly comprises a supporting component and a swing arm component, the base is used for being fixedly arranged on a vehicle body, and the lower end of the supporting component is fixedly connected to the base.

[0008] Among them, the swing arm component includes a swing arm body, a driving member, and a pushing member and a dragging member arranged at intervals on the swing arm body. One end of the swing arm body is rotatably connected to the supporting member around a first axis, one end of the pushing member is provided with an abutment portion, the driving member is arranged on the pushing member, and the driving member is configured to: drive the abutment portion to move relative to the swing arm body along the axial direction of the pushing member; the dragging member is used to connect with the inner side of the vehicle door.

[0009] With the above technical solution, the base of the door opening and closing durability test bench is first installed on the vehicle body, and then the support components and the swing arm components are assembled in sequence. Since the swing arm body has a pusher and a dragger arranged at intervals. After the door is unlocked, the moving part drives the abutment part to extend along the axis direction of the pusher and push the door, so that the door is in a stop position to prevent the door from being locked again. Furthermore, the swing arm body rotates, driving the pusher to push the door open. When the door needs to be closed, the dragger drags the door to close. The above steps of opening and closing the door are repeated to test the durability of the door.

[0010] In addition, the end of the pusher is provided with an abutment portion, and during the process of opening the door, the abutment portion abuts against the door and pushes the door open. The pusher and the door are not rigidly connected, and even if the contact point between the door and the pusher moves relative to each other, the structure of the pusher will not be damaged, so there is no need to set an adjustment structure for adjusting the posture of the pusher, which simplifies the structure of the door opening and closing durability test bench.

[0011] The embodiment of the utility model discloses a vehicle door opening and closing durability test bench, wherein the driving member is configured as a first elastic member, and the first elastic member in a compressed state can provide an elastic force to the abutting portion away from the swing arm body along the axial direction of the pushing member.

[0012] By adopting the above technical solution, during the opening and closing durability test of the vehicle door, when the vehicle door is unlocked and in the closed position, the abutting portion abuts against the inner side of the vehicle door and the first elastic member is in a compressed state, which can provide elastic force for the abutting portion, so that the abutting portion acts on the vehicle door, pushes the vehicle door open and is in a stop position, preventing the vehicle door from being locked again. When the vehicle door is closed, the first elastic member is compressed again, providing a pressing force for the abutting portion, so that the abutting portion abuts tightly against the inner side of the vehicle door, preventing the abutting portion from shaking in a non-working state.

[0013] The embodiment of the utility model discloses a vehicle door opening and closing durability test bench, which also includes a mounting seat arranged between a push member and a swing arm body, wherein the push member is arranged as a push shaft and is installed on the swing arm body through the mounting seat, and the push shaft can slide relative to the mounting seat.

[0014] In addition, a roller is arranged at one end of the driving shaft, and a flange is arranged at the other end, and the roller constitutes an abutting portion.

[0015] By adopting the above technical solution, the driving shaft is installed on the swing arm body through the mounting seat, and the roller at one end of the driving shaft abuts against the inner side of the car door. When the driving shaft pushes the car door to open, the roller slides on the inner side of the car door, converting the original sliding friction into rolling friction between the roller and the car door, which can reduce wear and reduce noise when opening the car door.

[0016] The embodiment of the utility model discloses a vehicle door opening and closing durability test bench, wherein a first elastic member is sleeved on a driving shaft, and two ends of the first elastic member are respectively in contact with a roller and a mounting seat.

[0017] In addition, a second elastic member is sleeved on the driving shaft, and two ends of the second elastic member are respectively in contact with the mounting seat and the flange.

[0018] By adopting the above technical solution, the first elastic member arranged between the roller and the mounting seat can provide driving force for the roller, so that the roller pushes the vehicle door that is in the closed position and unlocked state to the stop position, and the second elastic member arranged between the mounting seat and the flange can provide restoring force for the driving shaft, and can also prevent the flange at the other end from colliding with the mounting seat when the roller is extended under the elastic force of the first elastic member.

[0019] The embodiment of the utility model discloses a vehicle door opening and closing durability test bench, wherein the first elastic member and the second elastic member are both configured as a coil spring surrounding a driving shaft.

[0020] In addition, a positioning shoulder is formed at a corresponding position on the driving shaft at one end of the first elastic member and on the mounting seat at the other end of the first elastic member, and both ends of the first elastic member are respectively abutted against the corresponding positioning shoulder.

[0021] By adopting the above technical solution, the coil spring wrapped around the driving shaft can provide the driving shaft with an axial driving force and reduce the installation space occupied. In addition, positioning shoulders are arranged at both ends of the mounting seat and the driving shaft located at the first elastic member, which can play a positioning role for the first elastic member and reduce the wear of the driving shaft and the mounting seat when the first elastic member is repeatedly extended and retracted.

[0022] The embodiment of the utility model discloses a vehicle door opening and closing durability test bench, wherein a first axis is parallel to the axis of rotation of the vehicle door.

[0023] By adopting the above technical solution, when the pushing member pushes the door to open, it can be ensured that the rolling wall surface of the roller always slides on the inner wall surface of the door.

[0024] The embodiment of the utility model discloses a vehicle door opening and closing durability test bench, wherein the dragging member comprises a dragging head, a connecting member, a rope and a tension spring arranged in the middle of the rope.

[0025] One end of the rope is connected to the towing head, and the other end is connected to the connecting piece, and the connecting piece is detachably mounted on the inner panel of the vehicle door.

[0026] With the above technical solution, when the door is closed, the swing arm body rotates in the direction away from the door, and the towing head drives the rope to act on the connecting piece on the door. At this time, the door is closed under the tension of the rope, and when the swing arm body returns to its original position, the tension spring in the middle of the rope is in a stretched state, so the door is further pulled until it returns to the closed position and is locked.

[0027] An embodiment of the utility model discloses a vehicle door opening and closing durability test bench, which also includes a mounting bracket, a rotating motor and a reducer. The output shaft of the rotating motor is transmission-connected to a swing arm body through the reducer to drive the swing arm body to rotate around a first axis relative to a supporting component.

[0028] The swing arm body, the reducer and the rotating motor are installed on the supporting component through a mounting bracket.

[0029] In addition, a position sensor is arranged on the mounting bracket, and a sensing head is arranged on the swing arm body. When the vehicle door is in a closed position, the sensing head corresponds to the position sensor.

[0030] By adopting the above technical solution, the movement of the swing arm body can be controlled more accurately by driving the swing arm body to move through the rotating motor. In addition, since the rotation speed of the rotating motor is relatively fast, a reducer is arranged between the swing arm body and the swing arm body to reduce speed and increase torque, so that the swing arm body is closer to the actual opening and closing conditions of the door when driving the door to open and close.

[0031] In addition, the closed state of the door can be accurately detected by cooperating with the position sensor and the sensing head on the swing arm body.

[0032] The embodiment of the utility model discloses a vehicle door opening and closing durability test bench. When the vehicle door is in a closed position and unlocked, the driving member drives the abutting portion to extend along the axial direction of the pushing member and push the vehicle door, so that the vehicle door is in a stop position.

[0033] When the swing arm body rotates in a direction close to the vehicle door, the abutting portion of the push member abuts against the vehicle door and pushes the vehicle door to open, so that the vehicle door is in a maximum opening position.

[0034] When the swing arm body rotates in a direction away from the vehicle door, the dragging member pulls the vehicle door to close, so that the vehicle door is in a closed position.

[0035] By adopting the above technical solution, when the door is unlocked, the driving member drives the abutting part to move and push the door to the stop position, which can prevent the door from being locked again after it is unlocked but not far from the closed position. Then, the swing arm body moves to push the door open. When the door is at the maximum opening position, the door opening test is completed, and then the door closing test is carried out. The swing arm body rotates in the opposite direction, and the door is pulled closed by the dragging member, thereby completing the door opening and closing test. The above steps are repeated multiple times to test the durability of the door.

[0036] The embodiment of the utility model discloses a vehicle door opening and closing durability test bench, which comprises two test assemblies, and the two test assemblies are arranged on a base at intervals along the length direction of the vehicle body.

[0037] By adopting the above technical solution, the door opening and closing durability test bench can test two doors on the same side of the vehicle at the same time through two test components, thereby improving efficiency.

[0038] The beneficial effects of the utility model are:

[0039] The utility model discloses a vehicle door opening and closing durability test bench, wherein the test assembly comprises a support component and a swing arm component, a base is used to be fixedly arranged on the vehicle body, and the lower end of the support component is fixedly connected to the base. The swing arm component comprises a swing arm body, and a pusher and a dragger arranged on the swing arm body at intervals, one end of the swing arm body is rotatably connected to the support component around a first axis, one end of the pusher is provided with an abutment portion, and a driving component arranged on the pusher drives the abutment portion to move relative to the swing arm body along the axis direction of the pusher; the dragger is used to connect with the inner side of the vehicle door. During the test, when the vehicle door is unlocked, the driving component drives the abutment portion to extend and push the vehicle door, so that the vehicle door is in a stop position, which can prevent the vehicle door that is about to be opened from being locked again during the test. Furthermore, the vehicle door is opened by the movement of the swing arm body, and after the vehicle door is fully opened, the dragger on the swing arm body drags the vehicle door to close, and the above-mentioned steps of opening and closing the vehicle door are repeated to test the durability of the vehicle door. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of the structure of a vehicle door opening and closing durability test bench provided by an embodiment of the utility model assembled on a vehicle body;

[0041] Figure 2 A schematic diagram of the structure of a vehicle door opening and closing durability test bench provided by an embodiment of the utility model;

[0042] Figure 3(a) to Figure 3(c) A schematic diagram of a vehicle door opening and closing durability test bench and a vehicle door test provided by an embodiment of the utility model;

[0043] Figure 4A schematic diagram of a swing arm component of a vehicle door opening and closing durability test bench provided by an embodiment of the utility model;

[0044] Figure 5 A schematic diagram of the three-dimensional structure of a pusher of a vehicle door opening and closing durability test bench provided by an embodiment of the utility model;

[0045] Figure 6 A schematic diagram of the axial side of a pusher of a vehicle door opening and closing durability test bench provided by an embodiment of the utility model;

[0046] Figure 7 A schematic diagram of the structure of a rotating motor, a reducer and a mounting bracket of a vehicle door opening and closing durability test bench provided by an embodiment of the utility model;

[0047] Figure 8 A partial schematic diagram of a position sensor of a vehicle door opening and closing durability test bench provided by an embodiment of the utility model;

[0048] Fig. 9 A schematic structural diagram of a base of a vehicle door opening and closing durability test bench provided by an embodiment of the utility model;

[0049] Fig.10 A partial structural schematic diagram of the support legs of the base of the vehicle door opening and closing durability test bench provided by the embodiment of the utility model;

[0050] Fig.11 A partial schematic diagram of a support pin seat of a base of a vehicle door opening and closing durability test bench provided by an embodiment of the utility model;

[0051] Fig.12 A schematic structural diagram of the support components of a vehicle door opening and closing durability test bench provided in an embodiment of the utility model.

[0052] Description of reference numerals:

[0053] 10. Door opening and closing durability test bench;

[0054] 100, base; 110, support leg; 120, support nail seat;

[0055] 200. Test components;

[0056] 210, swing arm parts;

[0057] 211, swing arm body; 2111, sensor head; 2112, swing arm seat; 2113, pressure plate;

[0058] 212, a pushing member; 2120, a pushing shaft; 2121, abutting portion; 2122, a flange; 2123, a roller;

[0059] 213, dragging member; 2130, tractor head; 2131, connecting member; 2132, rope; 2133, tension spring;

[0060] 214, driving member; 2140, first elastic member;

[0061] 215, mounting seat;

[0062] 216, second elastic member;

[0063] 217, mounting bracket; 2171, position sensor; 2172, connecting bracket; 2173, mounting plate;

[0064] 218. Rotating electrical machines;

[0065] 219. Reducer;

[0066] 220, supporting member; 221, connecting plate;

[0067] 20. Door; 30. Underbody;

[0068] Z, first axis;

[0069] Y, vehicle body length direction;

[0070] X: vehicle body width direction. DETAILED DESCRIPTION

[0071] In order to ensure that the doors of cars leaving the factory have sufficient durability, in the prior art, the doors are usually tested for opening and closing durability before leaving the factory. There is a method of testing the durability of the doors by opening and closing the doors manually, but since human power cannot guarantee the same speed and force for each opening and closing of the doors, the accuracy of the test cannot be guaranteed, and it takes a long time. There are also test benches that are set up to test the opening and closing of doors. However, when the test benches in the prior art are conducting door durability tests, if the doors are not pushed open in time after being unlocked during the process of opening the doors, the doors (such as electric suction doors) may be locked again, resulting in the inability to open the doors.

[0072] Therefore, the utility model provides a vehicle door opening and closing durability test bench, by arranging a driving member on the pushing member that pushes the vehicle door to open, so that after the vehicle door is opened, the driving member will drive the pushing member to move, thereby pushing the vehicle door to the stop position, thereby avoiding the situation where the vehicle door is locked again.

[0073] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0074] like Figure 1 and Figure 2As shown, an embodiment of the utility model discloses a vehicle door opening and closing durability test bench 10 , which is installed in a vehicle body to perform an opening and closing durability test on a flat door 20 .

[0075] The vehicle door opening and closing durability test bench 10 includes a base 100 and a test assembly 200 . The test assembly 200 includes a support component 220 and a swing arm component 210 . The base 100 is used to be fixedly mounted on the vehicle body, and the lower end of the support component 220 is fixedly connected to the base 100 .

[0076] Specifically, in this embodiment, the base 100 is a frame structure formed by splicing a plurality of profiles, and the base 100 is mounted on the seat mounting hole of the vehicle body bottom plate 30. In addition, a guide groove is formed on the base 100 along the length direction Y of the vehicle body, and the support component 220 is connected to the base 100 through the guide groove, and the installation position of the support component 220 can be adjusted along the length direction Y of the vehicle body through the guide groove.

[0077] More specifically, Figure 2 , Fig. 9 and Fig.10 As shown, the edge of the base 100 is provided with a plurality of legs 110 at intervals along the length direction of the vehicle body, one end of the legs 110 is fixedly connected to the seat mounting hole of the vehicle body bottom plate 30 with the base 100 through bolts, and the other end of the legs 110 is provided with a strip hole extending in the vertical direction, and is fixedly connected to the base 100 through the strip hole. Of course, the base 100 can adjust the installation position relative to the vehicle body bottom plate 30 in the vertical direction through the strip hole. It should be noted that the number of the legs 110 can be two, three, four or other numbers, and those skilled in the art can design them according to actual conditions and specific needs, and this embodiment does not specifically limit this.

[0078] More specifically, Figure 2 , Fig. 9 and Fig.11 As shown, a plurality of support pin seats 120 are also provided at the edge of the base 100, and the support pin seats 120 are fixedly connected to the base 100 by bolts, and support pins extending in the vertical direction are installed in the support pin seats 120, and the bottom ends of the support pins abut against the vehicle body bottom plate 30, thereby supporting the base 100 in the vertical direction. It should be noted that the structure of the base 100 and the assembly method with the vehicle body bottom plate 30 are not limited to the above structure, and those skilled in the art can design according to actual conditions and specific needs, and this embodiment does not specifically limit this.

[0079] More specifically, in this embodiment, if Fig.12As shown, the support component 220 is also a columnar structure formed by splicing profiles. The side wall of the support component 220 is formed with a guide groove extending in the vertical direction. The swing arm component 210 is assembled on the support component 220 through the guide groove extending in the vertical direction, and the assembly position can be adjusted in the vertical direction relative to the support component 220 through the guide groove.

[0080] More specifically, in this embodiment, if Figure 2 and Fig.12 As shown, a connecting plate 221 is provided at the bottom of the supporting component 220, and the supporting component 220 is fixedly connected to the connecting plate 221 through a plurality of connecting sheet metals. The connecting plate 221 has a rectangular outline, and strip holes extending along the vehicle body width direction X are formed at the four corners of the connecting plate 221. The connecting plate 221 is connected to the base 100 through the strip holes extending along the vehicle body width direction X, and the connecting plate 221 (and the supporting component 220 connected to the connecting plate 221) can be adjusted relative to the base 100 along the vehicle body width direction X.

[0081] In this embodiment, the swing arm component 210 includes a swing arm body 211, and a pushing member 212 and a dragging member 213 arranged at intervals on the swing arm body 211. One end of the swing arm body 211 is rotatably connected to the supporting component 220 around the first axis Z, and an abutment portion 2121 is provided at one end of the pushing member 212. The driving member 214 is arranged on the pushing member 212, and the driving member 214 is configured to: drive the abutment portion 2121 to move relative to the swing arm body 211 along the axial direction of the pushing member 212; the dragging member 213 is used to connect to the inner side of the vehicle door 20.

[0082] As shown in FIG. 3( b ), when the door 20 is in the closed position and unlocked, the driving member 214 drives the abutting portion 2121 to extend along the axial direction of the pushing member 212 and push the door 20, so that the door 20 is in the stop position. It should be noted that the stop position refers to the door 20 being opened from the closed position with a small angle (for example, an opening of 1°) to prevent the door 20 from being re-locked. Regarding the specific selection of the stop position, those skilled in the art can design it according to the specific vehicle model and actual situation, and this embodiment does not make any specific limitation on this.

[0083] As shown in FIG. 3( c ), when the swing arm body 211 rotates in a direction close to the door 20 , the abutting portion 2121 of the pusher 212 abuts against the door 20 and pushes the door 20 to open, so that the door 20 is at the maximum opening position.

[0084] When the swing arm body 211 rotates in a direction away from the vehicle door 20 , the dragging member 213 pulls the vehicle door 20 to close, so that the vehicle door 20 is in a closed position, as shown in FIG. 3( a ).

[0085] Specifically, firstly, the base 100 of the door opening and closing durability test bench 10 is installed on the seat mounting part in the vehicle, and then the support component 220 and the swing arm component 210 are assembled in sequence. Since the swing arm body 211 has a pusher 212 and a dragger 213 arranged at intervals. After the door 20 is unlocked, the moving member drives the abutment portion 2121 to extend along the axial direction of the pusher 212 and push the door 20, so that the door 20 is in a stop position to prevent the door 20 from being locked again. Further, the swing arm body 211 rotates, driving the pusher 212 to push the door 20 to open, and when the door 20 needs to be closed, the door 20 is dragged to close by the dragger 213. The above steps of opening and closing the door 20 are repeated to test the durability of the door 20.

[0086] In addition, the end of the push member 212 is provided with an abutment portion 2121, and when the door 20 is opened, the abutment portion 2121 abuts against the door 20 and pushes the door 20 to open. The push member 212 and the door 20 are not rigidly connected, and even if the contact point between the door 20 and the push member 212 moves relative to each other (such as Figure 1 The dotted line in the middle shows the moving track of the contact point), and the structure of the push member 212 will not be damaged. Therefore, there is no need to set an adjustment structure for adjusting the posture of the push member 212, which simplifies the structure of the vehicle door opening and closing durability test bench 10.

[0087] Furthermore, if Figure 4-Figure 6 As shown, an embodiment of the utility model discloses a vehicle door opening and closing durability test bench 10, wherein the driving member 214 is configured as a first elastic member 2140, and the first elastic member 2140 in a compressed state can provide an elastic force to the abutting portion 2121 away from the swing arm body 211 along the axial direction of the pushing member 212.

[0088] Specifically, during the opening and closing durability test of the vehicle door 20, when the vehicle door 20 is unlocked and in the closed position, the abutting portion 2121 abuts against the inner side of the vehicle door 20 and the first elastic member 2140 is in a compressed state, which can provide elastic force for the abutting portion 2121, so that the abutting portion 2121 acts on the vehicle door 20, pushing the vehicle door 20 to the stop position, and preventing the vehicle door 20 from being locked again. When the vehicle door 20 is closed, the first elastic member 2140 is compressed again, providing a pressing force for the abutting portion 2121, so that the abutting portion 2121 is tightly abutted against the inner side of the vehicle door 20, and preventing the abutting portion 2121 from shaking in a non-working state.

[0089] In another embodiment, when the vehicle door 20 is in the closed position and locked, the first elastic member 2140 is not in a compressed state, and the abutting portion 2121 does not contact the inner side of the vehicle door 20. When the vehicle door 20 is about to be unlocked, the swing arm body 211 rotates in a direction close to the vehicle door 20, so that the abutting portion 2121 abuts against the inner side of the vehicle door 20, and the first elastic member 2140 is compressed. When the vehicle door 20 is unlocked, under the elastic force of the first elastic member 2140, the abutting portion 2121 pushes the vehicle door, so that the vehicle door is in the stop position. In this embodiment, when the vehicle door 20 is in the closed position, the abutting portion 2121 does not contact the vehicle door 20, which can reduce the risk of damage to the vehicle door 20, and the first elastic member 2140 can be compressed by the rotation of the swing arm body 211, which will not affect the purpose of pushing the vehicle door 20 to the stop position when opening the door.

[0090] In an alternative embodiment, the driving member 214 is configured as: a linear motor whose output shaft can be extended and retracted along the axial direction of the pushing member 212, wherein the output shaft of the linear motor is in driving connection with the abutment portion 2121 of the pushing member 212. Specifically, the vehicle door opening and closing durability test bench 10 also includes a controller. Taking the electric lock vehicle door as an example, when the controller detects the electrical signal of unlocking the vehicle door 20, it controls the linear motor so that the output shaft of the linear motor extends and drives the abutment portion 2121 to push the vehicle door 20. Of course, the driving member 214 can also be configured as a telescopic rod driven by air pressure or hydraulic pressure. Those skilled in the art can design it according to actual conditions and specific needs, and this embodiment does not specifically limit this.

[0091] Furthermore, if Figure 4-Figure 6 As shown, an embodiment of the utility model discloses a vehicle door opening and closing durability test bench 10, which also includes a mounting seat 215 arranged between a push member 212 and a swing arm body 211, wherein the push member 212 is arranged as a push shaft 2120 and is installed on the swing arm body 211 through the mounting seat 215, and the push shaft 2120 can slide relative to the mounting seat 215.

[0092] Furthermore, a roller 2123 is provided at one end of the driving shaft 2120, and a flange 2122 is provided at the other end, and the roller 2123 constitutes the abutting portion 2121. It should be noted that a mounting frame is formed at one end of the driving shaft 2120 to assemble the roller 2123, and the axis direction of the roller 2123 is in the vertical direction. When the driving shaft 2120 drives the door 20 to open, since the rotation axes of the two do not coincide, the roller 2123 will roll relative to the inner plate of the door 20 along the length direction Y of the vehicle body.

[0093] Specifically, the driving shaft 2120 is installed on the swing arm body 211 through the mounting seat 215, and the roller 2123 at one end of the driving shaft 2120 abuts against the inner side of the vehicle door 20. When the driving shaft 2120 pushes the vehicle door 20 to open, the roller 2123 slides on the inner side of the vehicle door 20, and the original abutting sliding friction is converted into rolling friction between the roller 2123 and the vehicle door 20, which can reduce wear and reduce noise when opening the vehicle door 20.

[0094] Specifically, in this embodiment, the driving shaft 2120 can be provided with a multi-prism structure, and a mounting hole matching the cross section of the driving shaft 2120 is formed on the mounting seat 215, and the driving shaft 2120 is installed on the mounting seat 215 through the mounting hole, wherein the driving shaft 2120 can be provided with a triangular prism, a quadrangular prism or other non-rotating body structure to prevent the driving shaft 2120 from rotating around its axis direction, and ensure that the axis of the roller 2123 at one end of the driving shaft 2120 is in the vertical direction. It should be noted that the mounting seat 215 can adjust the installation position relative to the axis direction of the swing arm body 211, and a sliding sleeve is provided in the mounting hole of the mounting seat 215 to reduce the friction force of the driving shaft 2120 sliding relative to the mounting seat 215. The specific structure and model of the sliding sleeve can be designed by those skilled in the art according to actual conditions and specific needs, and this embodiment does not specifically limit this.

[0095] Furthermore, if Figure 4-Figure 6 As shown, the embodiment of the utility model discloses a vehicle door opening and closing durability test bench 10 , wherein the first elastic member 2140 is sleeved on the driving shaft 2120 , and two ends of the first elastic member 2140 are respectively in contact with the roller 2123 and the mounting seat 215 .

[0096] In addition, a second elastic member 216 is sleeved on the driving shaft 2120 , and two ends of the second elastic member 216 are respectively in contact with the mounting seat 215 and the flange 2122 .

[0097] Specifically, the first elastic member 2140 disposed between the roller 2123 and the mounting seat 215 can provide a driving force for the roller 2123, so that the roller 2123 pushes the door 20 located in the closed position and in the unlocked state to the stop position, and the second elastic member 216 disposed between the mounting seat 215 and the flange 2122 can provide a restoring force for the driving shaft 2120, and can also prevent the flange 2122 at the other end from colliding with the mounting seat 215 when the roller 2123 extends under the elastic force of the first elastic member 2140. It should be noted that, since the second elastic member 216 only provides a restoring force, the second elastic member 216 has a smaller elastic coefficient than the first elastic member 2140 that provides a driving force.

[0098] Furthermore, the embodiment of the utility model discloses a vehicle door opening and closing durability test bench 10, wherein the first elastic member 2140 and the second elastic member 216 are both configured as coil springs surrounding the driving shaft 2120. Of course, a plurality of coil springs may be provided at intervals along the circumference of the driving shaft 2120, for example, three coil springs may be provided at intervals along the circumference of the driving shaft 2120, and those skilled in the art may design the coil springs according to actual conditions and specific requirements, and this embodiment does not specifically limit this.

[0099] In addition, positioning shoulders are formed at corresponding positions on one end of the first elastic member 2140 on the driving shaft 2120 and on the mounting seat 215 at the other end of the first elastic member 2140 , and both ends of the first elastic member 2140 are respectively abutted against the corresponding positioning shoulders.

[0100] Specifically, the coil spring wrapped around the driving shaft 2120 can provide the driving shaft 2120 with an axial driving force and reduce the installation space occupied. In addition, positioning shoulders (not shown in the figure) are provided at both ends of the mounting seat 215 and the driving shaft 2120 located at the first elastic member 2140, which can play a positioning role for the first elastic member 2140 and can also reduce the wear of the first elastic member 2140 on the driving shaft 2120 and the mounting seat 215 when the first elastic member 2140 is repeatedly extended and retracted.

[0101] In another alternative embodiment, the first elastic member 2140 and the second elastic member 216 can be configured as rubber, pneumatic springs or piezoelectric materials, etc. Taking piezoelectric materials as an example, by changing the electric field in which the piezoelectric material is located, the piezoelectric material is deformed, thereby driving the abutment portion 2121 to push the door 20 to open. Those skilled in the art can design it according to actual conditions and specific needs, and this embodiment does not make any specific limitations on this.

[0102] Furthermore, if Figure 1 As shown, the rotation axis of the swing door 20 of the existing vehicle model is generally not completely parallel to the vertical direction, but has an inclination angle of 1° to 3° relative to the vertical direction. In this embodiment, in order to ensure that the rolling wall surface of the roller 2123 always slides on the inner wall surface of the door 20, the first axis Z is parallel to the axis of rotation of the door 20.

[0103] Furthermore, if Figure 1 As shown, the embodiment of the utility model discloses a vehicle door opening and closing durability test bench 10 , wherein the dragging member 213 includes a dragging head 2130 , a connecting member 2131 , a rope 2132 , and a tension spring 2133 arranged in the middle of the rope 2132 .

[0104] One end of the rope 2132 is connected to the towing head 2130, and the other end is connected to the connecting member 2131, which is detachably mounted on the inner plate of the vehicle door 20. It should be noted that the connecting member 2131 can be provided with a plate-like structure, which is connected to the inner plate of the vehicle door 20 by screwing, clamping or gluing, and the connecting member 2131 can also be provided in the form of a hook, which is hung in the groove of the inner handle of the vehicle door 20. Those skilled in the art can design according to actual conditions and specific needs, and this embodiment does not specifically limit this.

[0105] Specifically, when the vehicle door 20 is closed, the swing arm body 211 rotates in a direction away from the vehicle door 20, and the traction head 2130 drives the rope 2132 to act on the connecting piece 2131 on the vehicle door 20. At this time, the vehicle door 20 is closed under the tension of the rope 2132. When the swing arm body 211 returns to its position, since the tension spring 2133 in the middle of the rope 2132 is in a stretched state, the vehicle door 20 is further pulled until it returns to the closed position and is locked.

[0106] In some other embodiments, the dragging member 213 does not need to be additionally provided with a connecting member 2131 , and one end of the rope 2132 is connected to the dragging head 2130 , and the other end is wrapped around the handle on the inner side of the vehicle door 20 .

[0107] Furthermore, if Figure 4 and Figure 7 As shown, the embodiment of the utility model discloses a vehicle door opening and closing durability test bench 10, which further includes a mounting bracket 217, a rotating motor 218 and a reducer 219. The output shaft of the rotating motor 218 is connected to the swing arm body 211 through the reducer 219 to drive the swing arm body 211 to rotate relative to the support component 220 around the first axis Z. It should be noted that in this embodiment, the rotating motor 218 can be a servo motor with high control accuracy.

[0108] In addition, the swing arm body 211 , the speed reducer 219 and the rotary motor 218 are mounted on the supporting component 220 via a mounting bracket 217 .

[0109] Specifically, by driving the swing arm body 211 to move through the rotating motor 218, the movement of the swing arm body 211 can be controlled more accurately. In addition, since the rotation speed of the rotating motor 218 is relatively fast, a reducer 219 is arranged between the swing arm body 211 and the swing arm body 211 to reduce speed and increase torque, so that the swing arm body 211 is closer to the actual working condition of opening and closing the door 20 when driving the door 20 to open and close.

[0110] More specifically, Figure 1 and Fig. 9As shown, a guide groove is formed on the mounting bracket 217 along the width direction X of the vehicle body, and the mounting bracket 217 is fixedly connected to the support component 220 through the guide groove during installation. Therefore, the mounting position of the mounting bracket 217 can be adjusted relative to the support component 220 along the width direction X of the vehicle body.

[0111] More specifically, in this embodiment, if Figure 7 As shown, the reducer 219 and the rotary motor 218 are connected to the mounting bracket 217 through the mounting plate 2173. It should be noted that, in order to make the first axis Z parallel to the rotating shaft of the door 20, the mounting plate 2173 is not completely horizontally mounted on the mounting bracket 217 during installation, but has a certain inclination angle (for example, 1.5°), so that the output shaft of the rotary motor 218 (parallel to the first axis Z) is parallel to the rotating shaft of the door 20. In another embodiment, the mounting plate 2173 is horizontally mounted on the mounting bracket 217, and the mounting surface of the mounting plate 2173 and the reducer 219 has an inclination angle. Those skilled in the art can design according to actual conditions and specific needs, and this embodiment does not specifically limit this.

[0112] More specifically, Figure 7 As shown, in this embodiment, the swing arm body 211 is installed at the output end of the reducer 219 through the swing arm seat 2112 and the pressure plate 2113, so that the power of the rotating motor 218 is transmitted to the swing arm body 211.

[0113] Furthermore, if Figure 7 As shown, the embodiment of the utility model discloses a vehicle door opening and closing durability test bench 10, a position sensor 2171 is arranged on the mounting bracket 217, and a sensing head 2111 is arranged on the swing arm body 211. When the vehicle door 20 is in the closed position, the sensing head 2111 corresponds to the position sensor 2171. Among them, the position sensor 2171 can be a proximity switch commonly used in the art. It should be noted that in this embodiment, the position sensor 2171 corresponds to the sensing head 2111 in the vertical direction. Of course, in other embodiments, the position sensor 2171 and the sensing head 2111 can also correspond in the horizontal direction. Those skilled in the art can design according to actual conditions and specific needs, and this embodiment does not make specific limitations on this.

[0114] Specifically, by cooperating with the position sensor 2171 and the sensor head 2111 on the swing arm body 211 , the closing state of the vehicle door 20 can be accurately detected.

[0115] It should be noted that, in this embodiment, Figure 8As shown, the position sensor 2171 is installed on the mounting bracket 217 through the connecting bracket 2172. The connecting bracket 2172 has a strip hole extending along the width direction X of the vehicle body and along the length direction Y of the vehicle body to facilitate the adjustment of the installation position of the position sensor 2171. Of course, the position sensor 2171 can also be installed on the mounting bracket 217 using a bracket of other structures. Those skilled in the art can design it according to actual conditions and specific needs, and this embodiment does not make any specific limitations on this.

[0116] Furthermore, if Figure 1 and Figure 2 As shown, an embodiment of the utility model discloses a vehicle door opening and closing durability test bench 10, which includes two test assemblies 200, which are arranged on a base 100 at intervals along the length direction of the vehicle body.

[0117] Specifically, the vehicle door opening and closing durability test bench 10 can test two vehicle doors 20 on the same side of the vehicle at the same time through two test assemblies 200, thereby improving efficiency.

[0118] In summary, the utility model provides a vehicle door opening and closing durability test bench 10. When the vehicle door opening and closing durability test bench 10 is used, the base 100 is first installed on the vehicle body bottom plate 30 through the support legs 110 and the support pin seats 120, and then the two test assemblies 200 are installed on the base 100 to complete the assembly of the vehicle door opening and closing durability test bench 10. In addition, the rope 2132 of the dragging member 213 is connected to the inner plate of the vehicle door 20 through the connecting member 2131, and the position of the position sensor 2171 on the mounting bracket 217 is adjusted so that when the vehicle door 20 is in the open and closed position, the position sensor 2171 corresponds to the induction head 2111 on the swing arm body 211. At this time, the preparation work is completed and the test is started. When the door is unlocked, the rotating motor 218 drives the swing arm body 211 to rotate, so that the roller 2123 abuts against the inner plate of the door 20, and the first elastic member 2140 is in a compressed state. Under the elastic force of the first elastic member 2140, the roller 2123 pushes the door 20, so that the door 20 is in a stop position (as shown in Figure 3 (b)), to prevent the door 20 from falling back and locking. Further, the rotating motor 218 drives the swing arm body 211 to rotate, driving the door 20 to complete opening and be in the maximum opening position (as shown in Figure 3 (c)), completing the test of opening the door 20. Then, the test of opening and closing the door 20 is carried out. The rotating motor 218 is reversed, and then the rope 2132 on the dragging member 213 pulls the door to close, completing the closing test. Then, the above test of opening and closing the door 20 is repeated many times. It should be noted that, in order to prevent the door 20 from colliding with the roller 2123 on the driving shaft 2120 when the door 20 is closed, there is a gap between the roller 2123 and the inner plate of the door 20 when the door 20 is in the closed position (as shown in FIG. 3( a)). Of course, in another embodiment, when the door 20 is closed, the roller 2123 can directly abut against the inner plate of the door 20. Those skilled in the art can design it according to actual conditions and specific needs, and this embodiment does not specifically limit this.

[0119] It should be noted that, in addition to the implementation methods of the utility model described in the above-mentioned specific specific embodiments, those skilled in the art can easily understand other advantages and functions of the utility model from the contents disclosed in this specification. Although the description of the utility model is introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation method. On the contrary, the purpose of introducing the utility model in conjunction with the implementation method is to cover other options or modifications that may be extended based on the claims of the utility model. In order to provide an in-depth understanding of the utility model, the above description contains many specific details, and the utility model can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the utility model, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0120] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0121] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0122] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0123] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0124] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A vehicle door opening and closing durability test bench, which is installed in a vehicle body to perform an opening and closing durability test on a flat door, and is characterized by: The door opening and closing durability test bench comprises a base and a test assembly, wherein the test assembly comprises a support component and a swing arm component, wherein the base is used to be fixedly arranged on the vehicle body, and the lower end of the support component is fixedly connected to the base; wherein, The swing arm component includes a swing arm body, a driving member, and a pushing member and a dragging member arranged at intervals on the swing arm body. One end of the swing arm body is rotatably connected to the supporting member around a first axis, and an abutment portion is arranged at one end of the pushing member. The driving member is arranged on the pushing member, and the driving member is configured to: drive the abutment portion to move relative to the swing arm body along the axial direction of the pushing member; the dragging member is used to connect to the inner side of the vehicle door.

2. The vehicle door opening and closing durability test bench according to claim 1, characterized in that: The driving member is configured as a first elastic member, and the first elastic member in a compressed state can provide an elastic force to the abutting portion to move away from the swing arm body along the axial direction of the pushing member.

3. The vehicle door opening and closing durability test bench according to claim 2, characterized in that: The vehicle door opening and closing durability test bench further includes a mounting seat arranged between the push member and the swing arm body, the push member is configured as a push shaft and is mounted on the swing arm body through the mounting seat, and the push shaft can slide relative to the mounting seat; and A roller is arranged at one end of the driving shaft, and a flange is arranged at the other end thereof, wherein the roller constitutes the abutting portion.

4. The vehicle door opening and closing durability test bench according to claim 3, characterized in that: The first elastic member is sleeved on the driving shaft, and two ends of the first elastic member are respectively in contact with the roller and the mounting seat; and, The driving shaft is also sleeved with a second elastic member, and two ends of the second elastic member are respectively in contact with the mounting seat and the flange.

5. The vehicle door opening and closing durability test bench as claimed in claim 4, characterized in that The first elastic member and the second elastic member are both configured as coil springs wrapped around the driving shaft; and A positioning shoulder is formed on the driving shaft at one end of the first elastic member and on the mounting seat at a corresponding position at the other end of the first elastic member, and both ends of the first elastic member are respectively abutted against the corresponding positioning shoulders.

6. The vehicle door opening and closing durability test bench according to any one of claims 1 to 5, characterized in that: The first axis is parallel to the axis about which the door rotates.

7. The vehicle door opening and closing durability test bench according to any one of claims 1 to 5, characterized in that: The dragging member includes a dragging head, a connecting member, a rope, and a tension spring arranged in the middle of the rope; wherein, One end of the rope is connected to the tractor, and the other end is connected to the connecting piece, and the connecting piece is detachably mounted on the inner plate of the vehicle door.

8. The vehicle door opening and closing durability test bench according to any one of claims 1 to 5, characterized in that: The vehicle door opening and closing durability test bench further includes a mounting bracket, a rotating motor and a reducer, wherein the output shaft of the rotating motor is transmission-connected to the swing arm body through the reducer to drive the swing arm body to rotate around the first axis relative to the supporting component; wherein, The swing arm body, the reducer and the rotating motor are mounted on the supporting component through the mounting bracket, and, A position sensor is arranged on the mounting bracket, and a sensing head is arranged on the swing arm body. When the vehicle door is in a closed position, the sensing head corresponds to the position sensor.

9. The vehicle door opening and closing durability test bench according to any one of claims 1 to 5, characterized in that: When the vehicle door is in the closed position and unlocked, the driving member drives the abutment portion to extend along the axis direction of the pushing member and push the vehicle door, so that the vehicle door is in the stop position; When the swing arm body rotates in a direction close to the vehicle door, the abutting portion of the pusher abuts against the vehicle door and pushes the vehicle door to open, so that the vehicle door is at a maximum opening position; When the swing arm body rotates in a direction away from the vehicle door, the dragging member pulls the vehicle door to close, so that the vehicle door is in a closed position.

10. The vehicle door opening and closing durability test bench according to any one of claims 1 to 5, characterized in that: The vehicle door opening and closing durability test bench comprises two test assemblies, and the two test assemblies are arranged on the base at intervals along the length direction of the vehicle body.

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