CN107560841B - Automobile trunk lid fatigue test device - Google Patents
Automobile trunk lid fatigue test device Download PDFInfo
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- CN107560841B CN107560841B CN201710932404.8A CN201710932404A CN107560841B CN 107560841 B CN107560841 B CN 107560841B CN 201710932404 A CN201710932404 A CN 201710932404A CN 107560841 B CN107560841 B CN 107560841B
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 29
- 230000009471 action Effects 0.000 claims description 14
- 230000003139 buffering effect Effects 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 241000276425 Xiphophorus maculatus Species 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention provides a fatigue test device for an automobile trunk cover, and belongs to the technical field of vehicle test equipment. The automobile trunk cover solves the problem that the existing automobile trunk cover is difficult to continuously perform fatigue test. This car trunk lid fatigue test device, including the workstation, the support frame has been linked firmly on the workstation, sliding connection has the lifting frame on the support frame, sliding connection has the key seat on the support frame, is equipped with the driving piece on the workstation, and can drive the lifting seat and upwards remove when the key seat upwards moves back driving piece in place, sliding connection has the frame that pushes down on the support frame, sliding connection has the removal frame on the frame that pushes down, articulates on the removal frame has the seat that pushes down, is equipped with the power piece on the support frame. The automobile trunk lid fatigue test device can enable the trunk lid to be automatically opened and closed, and achieves fatigue test of the trunk lid.
Description
Technical Field
The invention belongs to the technical field of vehicle test equipment, and relates to a fatigue test device for an automobile trunk cover.
Background
The trunk lid of car articulates on the automobile body, still is connected with hydraulic stem or spring beam between trunk lid and automobile body, consequently can automatic spring up and form certain opening angle with the automobile body when the trunk lid is opened, and need carry out the fatigue test that opens and shuts to the trunk lid of test vehicle after the trunk lid equipment to detect trunk lid lock, pin joint, hydraulic stem etc. parts's life, however current test equipment is difficult to carry out effectual detection in succession.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a fatigue test device for a trunk lid of an automobile, which can automatically open and close the trunk lid and realize the fatigue test of the trunk lid.
The aim of the invention can be achieved by the following technical scheme: the utility model provides an automobile trunk lid fatigue test device, includes the workstation, the support frame has been linked firmly on the workstation, its characterized in that, along vertical direction sliding connection there being the lifting frame on the support frame, the last lifting seat that has been linked firmly of lifting frame can support and lean on the terminal surface under the trunk lid when the trunk lid is closed, still along vertical direction sliding connection there being the button seat on the support frame, and the below of button seat unlocking key when the trunk lid is closed, be equipped with the driving piece that can drive the button seat and upwards remove the settlement height on the workstation, and can drive the lifting seat and upwards remove when button seat upwards moves the back driving piece in place, still along vertical direction sliding connection there being down the pressure frame on the support frame, along automobile body fore-and-aft sliding connection there being the removal frame on the pressure frame, the last articulated pressure seat that has of moving down can support frame with the back edge angle position counterbalance when the trunk lid is opened, be equipped with the concave surface that can drive down the pressure frame down, the power that can break away from when the pressure frame down is equipped with down and reset the longitudinal spring when the pressure frame.
When a test is carried out, the workbench is arranged at the rear end of the vehicle, the lifting seat is positioned below the lower end of the trunk cover, the button seat is positioned below the unlocking key, the driving piece can drive the button seat to move upwards for a set distance, the upper end of the button seat can push the unlocking key upwards, the unlocking key is unlocked, then the driving piece can drive the lifting seat to move upwards, the lifting seat can push the trunk cover upwards, namely, an upward acting force is applied to the trunk cover, the trunk cover can be propped against the pressing seat after being sprung upwards, at the moment, the opening work of the trunk cover is completed, then the power piece drives the pressing frame to move downwards, along with the swinging of the trunk cover, the moving frame correspondingly moves, the pressing seat can push the trunk cover downwards, the trunk cover can be covered on the trunk cover under the pushing force, and the closing action of the trunk cover is completed, so that the automatic opening and closing of the trunk cover are realized.
In the automobile trunk lid fatigue test device, the driving piece comprises a driving motor, the supporting frame is rotationally connected with the lifting cam through the rotating shaft, the lifting frame is rotationally connected with the abutting wheel, the abutting wheel is located above the lifting cam, the wheel surface of the lifting cam abuts against the wheel surface of the abutting wheel, and a motor shaft of the driving motor is connected with the rotating shaft. The drive motor drives the lifting cam to rotate, and the lifting cam can push upwards against the wheel, so that the lifting seat moves upwards and provides upward acting force for the trunk cover.
In the automobile trunk lid fatigue test device, the supporting frame is connected with the pushing block in a sliding mode along the front-rear direction of the automobile body, the upper end face of the pushing block comprises an inclined pushing face and two horizontal supporting faces, the front end of the pushing face is higher than the rear end, one supporting face is located at the front end of the pushing face, the other supporting face is located at the rear end of the pushing face, the lower end of the key seat abuts against the upper end face of the pushing block, when the key seat abuts against the lower supporting face, the upper end of the key seat is close to an unlocking key of the trunk lid, a connecting rod is hinged to the side face of the lifting cam through a pin shaft, the pin shaft and the rotating shaft are eccentrically arranged, and when a convex portion of the lifting cam faces downwards vertically, the pin shaft is located at the front side of the rotating shaft, and the free end of the connecting rod is hinged to the pushing block. Because the pin shaft is positioned at the front side of the rotating shaft when the convex part of the lifting cam faces downwards, the lifting seat cannot rise when the lifting cam rotates for 45 degrees, the connecting rod can drive the pushing block to move, and the pushing surface on the pushing block can push the key seat upwards to unlock.
In the automobile trunk lid fatigue test device, the connecting rod comprises a connecting pipe and a telescopic rod, the rear end of the connecting pipe is hinged with the lifting cam, the front end of the telescopic rod is hinged with the push block, the rear end of the telescopic rod is slidably inserted into the front end of the connecting pipe, an annular limiting convex edge is arranged on the outer wall of the telescopic rod, a buffer tension spring is arranged in the connecting pipe, the rear end of the buffer tension spring is fixedly connected onto the connecting pipe, the front end of the buffer tension spring is fixedly connected onto the telescopic rod, the limiting convex edge can abut against the front end face of the connecting pipe under the action of the buffer tension spring, the supporting frame is fixedly connected with the supporting plate, a sliding groove is formed in the supporting plate along the front-rear direction of the automobile body, the push block is slidably connected into the sliding groove, the sliding groove is further provided with a limiting part, the limiting part is positioned at the rear end of the push block, the push block abuts against the limiting part when the convex part of the lifting cam horizontally forwards, and a reset spring capable of enabling the push block to reset forwards is further arranged in the sliding groove. The lifting cam rotates for 45 degrees to realize unlocking and then needs to rotate continuously, at the moment, the convex part of the lifting cam abuts against the abutting wheel, so that the lifting seat rises, the telescopic rod can stretch the buffer tension spring in the process, the connecting rod is lengthened, namely, the lifting cam continues to rotate, and the pushing block can stop moving under the action of the limiting part.
In the automobile trunk lid fatigue test device, the supporting frame is fixedly connected with the connecting sleeve which is vertically arranged, the key seat is columnar, the key seat is arranged in the connecting sleeve in a penetrating manner in a sliding manner, the upper end of the key seat extends out of the upper end of the connecting sleeve, the key seat is fixedly connected with the key head made of rubber materials, the lower end of the key seat extends out of the lower end of the connecting sleeve, the end face of the lower end of the key seat is a cambered surface, the inner hole of the connecting sleeve is a step hole with larger diameter of the lower end, the outer wall of the key seat is circumferentially provided with a supporting convex edge, the key seat is also sleeved with a tensioning spring, the upper end of the tensioning spring is propped against the step face of the step hole, the lower end of the tensioning spring is propped against the supporting convex edge, and the lower end of the key seat is propped against the upper end face of the pushing block under the action of the tensioning spring. The connecting sleeve enables the key seat to be stable, and meanwhile the tensioning spring enables the lower end of the key seat to be always abutted against the pushing block, so that the structure is more stable.
In the automobile trunk lid fatigue test device, the power piece comprises a power cylinder and a pressing block, the pressing block is connected with the supporting frame in a sliding mode along the front-back direction of the automobile body, a piston rod of the power cylinder is connected with the pressing block, the lower end face of the pressing block comprises a pressing inclined face, a buffering cambered surface and a guiding plane, the buffering cambered surface is located between the pressing inclined face and the guiding plane, the rear end of the pressing inclined face is higher than the front end, an included angle between the pressing inclined face and the horizontal plane is 45-60 degrees, the rear end of the buffering cambered surface is higher than the front end, the rear end of the buffering cambered surface is in smooth transition with the front end of the pressing inclined face, the front end of the buffering cambered surface is in smooth transition with the rear end of the guiding plane, a pressing wheel is connected to the moving frame in a rotating mode, the pressing wheel is located below the pressing block, and the wheel face of the pressing wheel is abutted against the lower end face of the pressing block. When the power cylinder drives the pressing block to move, the pressing inclined surface is abutted against the pressing wheel, and the inclination of the pressing inclined surface is larger, so that the downward moving speed of the lower pressing seat is larger, and the speed of the lower pressing seat is slower along with the abutting of the buffering cambered surface and the pressing wheel, so that the lower pressing seat generates larger instant acting force on the trunk cover.
In the automobile trunk lid fatigue test device, the support frame comprises two vertical guide shafts which are vertically arranged, two vertical guide sleeves are fixedly connected to the pressing frame, the two vertical guide sleeves are respectively sleeved on the vertical guide shafts in a sliding mode, the pressing frame comprises two horizontal longitudinal guide shafts, the moving frame is rectangular plate-shaped, two opposite edges of the moving frame are respectively provided with two longitudinal guide sleeves, the longitudinal guide sleeves are sleeved on the longitudinal guide shafts in a sliding mode, and vertical springs capable of enabling the pressing frame to reset upwards are sleeved on the vertical guide shafts in a sleeved mode, and the longitudinal springs are sleeved on the longitudinal guide shafts. The vertical guide sleeve is matched with the vertical guide shaft, so that the pressing seat is kept stable, and the movable frame is kept stable through the matching of the vertical guide sleeve and the vertical guide shaft.
In the automobile trunk lid fatigue test device, the pressing seat comprises a plate-shaped framework and a rubber block fixedly connected to the side face of the framework, the cross section of the rubber block is L-shaped, the pressing concave face is located on the side face of the inner side of the rubber block, two connecting seats are arranged on the lower side face of the movable frame, and the framework is rotationally connected between the two connecting seats through a connecting pin. The concave surface of pushing down of rubber piece suits with the edges and corners of trunk lid, can fully press in the edges and corners department of trunk lid, and the skeleton can provide the support for the rubber piece, avoids the rubber piece to appear warping.
In the automobile trunk lid fatigue test device, a limiting block is connected to the side face of the connecting seat, a reset torsion spring is sleeved on the connecting pin, one end of the reset torsion spring acts on the connecting seat, the other end of the reset torsion spring acts on the framework, the front end of the lower pressing block has a downward swinging trend under the action of the reset torsion spring, and the edge of the framework abuts against the limiting block when the lower pressing seat is separated from the trunk lid. The limiting block limits the angle of the framework, so that the downward-pressing concave surface of the rubber block is opposite to and propped against the edge angle of the sprung trunk cover after the framework is inclined.
In the automobile trunk lid fatigue test device, the connecting seat is provided with the arc-shaped groove, the arc-shaped groove and the connecting pin have the same central line, the arc-shaped groove is internally penetrated with the adjusting bolt, the limiting block is provided with the screw hole, and the end part of the adjusting bolt extends out of the arc-shaped groove and is in screwed connection with the screw hole of the limiting block. According to the trunk lid opening angle difference of different motorcycle types, can adjust the position of stopper through adjusting bolt to adjust the inclination of skeleton, the suitability is stronger.
Compared with the prior art, the fatigue test device for the trunk cover of the automobile has the following advantages:
1. The driving piece can drive the key seat to move upwards for a set distance, the upper end of the key seat can push the unlocking key upwards, so that the unlocking key is unlocked, and the lifting seat can push the trunk lid upwards, namely, an upward acting force is applied to the trunk lid, and the automatic opening of the trunk lid is realized.
2. The power piece drives the pressing frame to move downwards, the moving frame correspondingly moves along with the swinging of the trunk cover, the pressing seat can provide downward thrust for the trunk cover, and the trunk cover can be covered on the trunk under the thrust, so that the automatic covering of the trunk cover is realized.
3. The unlocking and lifting of the trunk cover are realized through a driving motor and a lifting cam, so that the continuity of actions can be ensured, and the power source is reduced.
Drawings
Fig. 1 is a schematic perspective view of a fatigue test device for a trunk lid of the automobile.
Fig. 2 is a structural sectional view of the present automobile trunk lid fatigue test apparatus.
Fig. 3 is an enlarged view of the structure at a in fig. 1.
Fig. 4 is an enlarged view of the structure at B in fig. 2.
Fig. 5 is an enlarged view of the structure at C in fig. 2.
Fig. 6 is an enlarged view of the structure at D in fig. 1.
Fig. 7 is an enlarged view of the structure at E in fig. 2.
In the figure, 1, a workbench; 11. a support frame; 111. a vertical guide shaft; 112. a vertical spring; 12. a support plate; 121. a chute; 122. a limit part; 123. a return spring; 13. connecting sleeves; 2. lifting the frame; 21. lifting the seat; 22. an abutment wheel; 3. a key base; 31. a key head; 32. supporting the convex edge; 33. tensioning a spring; 4. a driving motor; 41. lifting the cam; 411. a rotating shaft; 412. a pin shaft; 42. a connecting rod; 421. a connecting pipe; 422. a telescopic rod; 423. limiting convex edges; 424. a buffer tension spring; 5. a pushing block; 51. pushing surface; 52. a support surface; 6. a pressing frame is pressed down; 61. a pinch roller; 62. a vertical guide sleeve; 63. a longitudinal guide shaft; 64. a longitudinal spring; 7. a moving rack; 71. a longitudinal guide sleeve; 72. a connecting seat; 721. an arc-shaped groove; 722. an adjusting bolt; 723. a limiting block; 8. a power cylinder; 81. briquetting; 811. pressing the inclined plane; 812. buffering cambered surfaces; 813. a guide plane; 9. pressing down a seat; 91. a skeleton; 92. a rubber block; 921. the concave surface is pressed down.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, an automobile trunk lid fatigue test device comprises a workbench 1, a supporting frame 11 is fixedly connected to the workbench 1, a lifting frame 2 is fixedly connected to the supporting frame 11 in a sliding manner along the vertical direction, a lifting seat 21 which can be propped against the lower end face of the trunk lid when the trunk lid is closed is fixedly connected to the lifting frame 2, a key seat 3 is also connected to the supporting frame 11 in a sliding manner along the vertical direction, the key seat 3 is located below a unlocking key of the trunk lid when the trunk lid is closed, a driving piece capable of driving the key seat 3 to move upwards by a set height is arranged on the workbench 1, a pressing frame 6 is connected to the supporting frame 11 in a sliding manner along the vertical direction, a moving frame 7 is connected to the pressing frame 6 in a sliding manner along the front-rear direction of the trunk lid, a pressing seat 9 is hinged to the moving frame 7, a pressing concave surface which can be propped against the corner position of the trunk lid when the trunk lid is opened is arranged on the pressing frame 9 is arranged on the pressing frame 11, and the pressing frame 6 can be driven by the pressing frame 6 downwards by a reset power piece, and the pressing frame 6 can be driven downwards by the driving piece to move downwards when the pressing frame 6 is separated from the moving upwards, and the pressing frame 64 is arranged on the pressing frame 6. During a test, the workbench 1 is arranged at the rear end of a vehicle, the lifting seat 21 is positioned below the lower end of the trunk lid, the key seat 3 is positioned below the unlocking key, the driving piece can drive the key seat 3 to move upwards for a set distance, the upper end of the key seat 3 can push the unlocking key upwards, the unlocking key is unlocked, then the driving piece can drive the lifting seat 21 to move upwards, the lifting seat 21 can push the trunk lid upwards, namely, an upward acting force is applied to the trunk lid, the trunk lid can be propped against the pressing seat 9 after being sprung upwards, at the moment, the opening work of the trunk lid is completed, then the power piece drives the pressing frame 6 to move downwards, along with the swinging of the trunk lid, the moving frame 7 correspondingly moves, and the pressing seat 9 can push the trunk lid downwards, the trunk lid can be covered on the trunk lid under the pushing force, at the moment, the closing action of the trunk lid is completed, and the automatic opening and closing of the trunk lid are realized.
As shown in fig. 3, fig. 4 and fig. 5, the driving piece comprises a driving motor 4, a lifting cam 41 is rotatably connected to the supporting frame 11 through a rotating shaft 411, an abutting wheel 22 is rotatably connected to the lifting frame 2, the abutting wheel 22 is located above the lifting cam 41, the wheel surface of the lifting cam 41 abuts against the wheel surface of the abutting wheel 22, a motor shaft of the driving motor 4 is connected with the rotating shaft 411, the driving motor 4 drives the lifting cam 41 to rotate, and the lifting cam 41 can push the abutting wheel 22 upwards, so that the lifting seat 21 moves upwards and provides an upward acting force for the trunk cover. The supporting frame 11 is connected with a pushing block 5 in a sliding way along the front-back direction of the car body, the upper end face of the pushing block 5 comprises an inclined pushing surface 51 and two horizontal supporting surfaces 52, the front end of the pushing surface 51 is higher than the rear end, one supporting surface 52 is positioned at the front end of the pushing surface 51, the other supporting surface 52 is positioned at the rear end of the pushing surface 51, the lower end of the key seat 3 is abutted against the upper end face of the pushing block 5, when the key seat 3 is abutted against the lower supporting surface 52, the upper end of the key seat 3 is close to an unlocking key of the trunk lid, a connecting rod 42 is hinged on the side face of the lifting cam 41 through a pin 412, the pin 412 and the rotating shaft 411 are eccentrically arranged, And when the convex part of the lifting cam 41 is vertically downward, the pin 412 is positioned at the front side of the rotating shaft 411, and the free end of the connecting rod 42 is hinged on the push block 5. since the pin 412 is located at the front side of the rotating shaft 411 when the protruding portion of the lifting cam 41 faces downward, the lifting seat 21 will not rise when the lifting cam 41 rotates for 45 degrees, and the connecting rod 42 can drive the push block 5 to move, and the pushing surface 51 on the push block 5 can push the key seat 3 upward, so as to unlock. The connecting rod 42 comprises a connecting pipe 421 and a telescopic rod 422, the rear end of the connecting pipe 421 is hinged with the lifting cam 41, the front end of the telescopic rod 422 is hinged with the push block 5, the rear end of the telescopic rod 422 is slidably inserted in the front end of the connecting pipe 421, an annular limiting convex edge 423 is arranged on the outer wall of the telescopic rod 422, a buffer tension spring 424 is arranged in the connecting pipe 421, the rear end of the buffer tension spring 424 is fixedly connected to the connecting pipe 421, the front end is fixedly connected to the telescopic rod 422, the limiting convex edge 423 can be abutted against the front end face of the connecting pipe 421 under the action of the buffer tension spring 424, the supporting frame 11 is fixedly connected with the supporting plate 12, the supporting plate 12 is provided with a sliding groove 121 along the front-rear direction of the vehicle body, the push block 5 is slidably connected in the sliding groove 121, the sliding groove 121 is also internally provided with a limiting part 122, the limiting part 122 is positioned at the rear end of the push block 5, when the convex part of the lifting cam 41 horizontally faces forward, the push block 5 abuts against the limiting part 122, and the sliding groove 121 is internally provided with a reset spring 123 capable of enabling the push block 5 to reset forwards. After the lifting cam 41 rotates for 45 degrees to unlock, the lifting cam 41 needs to continue to rotate, at this time, the convex part of the lifting cam 41 abuts against the abutting wheel 22, so that the lifting seat 21 rises, in the process, the telescopic rod 422 can stretch the buffer tension spring 424, so that the connecting rod 42 becomes longer, that is, the lifting cam 41 continues to rotate, but the push block 5 can stop moving under the action of the limiting part 122. The support frame 11 is fixedly connected with a connecting sleeve 13 which is vertically arranged, the key seat 3 is columnar, the key seat 3 is arranged in the connecting sleeve 13 in a penetrating way in a sliding way, the upper end of the key seat 3 extends out of the upper end of the connecting sleeve 13, the upper end of the key seat 3 is fixedly connected with a key head 31 made of rubber material, the lower end of the key seat 3 extends out of the lower end of the connecting sleeve 13, the lower end face of the key seat 3 is a cambered surface, an inner hole of the connecting sleeve 13 is a step hole with a larger diameter at the lower end, a supporting convex edge 32 is circumferentially arranged on the outer wall of the key seat 3, a tensioning spring 33 is sleeved on the key seat 3, the upper end of the tensioning spring 33 is abutted against the step face of the step hole, the lower end is abutted against the supporting convex edge 32, The lower end of the key base 3 abuts against the upper end face of the push block 5 under the action of the tension spring 33. The connecting sleeve 13 enables the key seat 3 to be stable, and simultaneously the tensioning spring 33 enables the lower end of the key seat 3 to be always abutted against the push block 5, so that the structure is more stable.
As shown in fig. 6 and 7, the power part comprises a power cylinder 8 and a pressing block 81, the pressing block 81 is slidably connected with a supporting frame 11 along the front-rear direction of a vehicle body, a piston rod of the power cylinder 8 is connected with the pressing block 81, the lower end surface of the pressing block 81 comprises a pressing inclined surface 811, a buffering cambered surface 812 and a guiding plane 813, the buffering cambered surface 812 is positioned between the pressing inclined surface 811 and the guiding plane 813, the rear end of the pressing inclined surface 811 is higher than the front end, the included angle between the pressing inclined surface 811 and the horizontal plane is 45-60 degrees, the rear end of the buffering cambered surface 812 is higher than the front end, the rear end of the buffering cambered surface 812 is in smooth transition with the front end of the pressing inclined surface 811, The front end of the buffering cambered surface 812 is in smooth transition with the rear end of the guide plane 813, the pressing wheel 61 is rotationally connected to the movable frame 7, the pressing wheel 61 is located below the pressing block 81, and the wheel surface of the pressing wheel 61 abuts against the lower end surface of the pressing block 81. When the power cylinder 8 drives the pressing block 81 to move, the pressing inclined surface 811 is abutted against the pressing wheel 61 first, and the inclination of the pressing inclined surface 811 is larger, so that the downward moving speed of the pressing seat 9 is larger, and as the buffering cambered surface 812 abuts against the pressing wheel 61, the speed of the pressing seat 9 is slowed down, so that the pressing seat 9 generates larger instant acting force on the trunk lid. The support frame 11 includes two vertical guide shafts 111 of vertical setting, has linked firmly two vertical uide bushing 62 on pushing down the frame 6, and these two vertical uide bushing 62 slip cap are established on vertical guide shaft 111 respectively, and pushing down the frame 6 and including the vertical guide shaft 63 of two level settings, remove the frame 7 and be rectangular plate-like, and remove the relative both sides limit of frame 7 and all have two vertical uide bushing 71, and vertical uide bushing 71 slip cap is established on vertical guide shaft 63, and vertical guide shaft 111 is gone up the cover and is equipped with the vertical spring 112 that can make pushing down the upward reset removal of frame 6, and vertical spring 64 cover is established on vertical guide shaft 63. The pressing seat 9 is kept stable by the cooperation of the vertical guide sleeve 62 and the vertical guide shaft 111, and the movable frame 7 is kept stable by the cooperation of the longitudinal guide sleeve 71 and the longitudinal guide shaft 63. The pressing seat 9 comprises a plate-shaped framework 91 and a rubber block 92 fixedly connected to the side surface of the framework 91, the cross section of the rubber block 92 is L-shaped, the pressing concave 921 is located on the side surface of the inner side of the rubber block 92, the lower side surface of the movable frame 7 is provided with two connecting seats 72, and the framework 91 is rotationally connected between the two connecting seats 72 through a connecting pin. The concave 921 of the rubber block 92 is adapted to the corner of the trunk lid, so that the rubber block 92 can be fully pressed at the corner of the trunk lid, and the framework 91 can provide support for the rubber block 92, so that deformation of the rubber block 92 is avoided. A limiting block 723 is connected to the side surface of the connecting seat 72, a reset torsion spring is sleeved on the connecting pin, one end of the reset torsion spring acts on the connecting seat 72, the other end acts on the framework 91, the front end of the lower pressing block 81 has a downward swinging trend under the action of the reset torsion spring, and when the lower pressing seat 9 is separated from the trunk cover, the edge of the framework 91 abuts against the limiting block 723. The stopper 723 restricts the angle of the skeleton 91 so that the depressed concave surface 921 of the rubber block 92 is opposed to and abuts against the sprung trunk lid corner angle after the skeleton 91 is inclined. The arc-shaped groove 721 is formed in the connecting seat 72, the arc-shaped groove 721 and the connecting pin have the same central line, the adjusting bolt 722 is arranged in the arc-shaped groove 721 in a penetrating manner, the limiting block 723 is provided with a screw hole, the end part of the adjusting bolt 722 extends out of the arc-shaped groove 721 and is in threaded connection with the screw hole of the limiting block 723, the position of the limiting block 723 can be adjusted through the adjusting bolt 722 according to different opening angles of trunk covers of different automobile types, and therefore the inclination angle of the framework 91 is adjusted, and the applicability is stronger.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (4)
1. The automobile trunk lid fatigue test device comprises a workbench (1), wherein a supporting frame (11) is fixedly connected to the workbench (1), the workbench is characterized in that a lifting frame (2) is slidingly connected to the supporting frame (11) along the vertical direction, a lifting seat (21) which can be propped against the lower end face of the trunk lid when the trunk lid is closed is fixedly connected to the lifting frame (2), a key seat (3) is slidingly connected to the supporting frame (11) along the vertical direction, the key seat (3) is positioned below a unlocking key of the trunk lid when the trunk lid is closed, a driving piece which can drive the key seat (3) to move upwards to a set height is arranged on the workbench (1), And when the key seat (3) moves upwards to a proper position, the driving piece can drive the lifting seat (21) to move upwards, the support frame (11) is also connected with the pressing frame (6) in a sliding way along the vertical direction, the pressing frame (6) is connected with the moving frame (7) in a sliding way along the front-back direction of the car body, the moving frame (7) is hinged with the pressing seat (9), the pressing seat (9) is provided with a pressing concave surface (921) which can be propped against the rear edge angle position of the trunk lid when the trunk lid is opened, the support frame (11) is provided with a power piece which can drive the pressing frame (6) to move downwards, the pressing frame (6) is provided with a longitudinal spring (64) which can enable the moving frame (7) to move in a resetting way when the trunk lid is separated from the pressing seat (9), the driving piece comprises a driving motor (4), The lifting cam (41) is rotationally connected to the supporting frame (11) through the rotating shaft (411), the abutting wheel (22) is rotationally connected to the lifting frame (2), the abutting wheel (22) is located above the lifting cam (41), the wheel surface of the lifting cam (41) abuts against the wheel surface of the abutting wheel (22), a motor shaft of the driving motor (4) is connected with the rotating shaft (411), the pushing block (5) is slidingly connected to the supporting frame (11) along the front and rear direction of the vehicle body, the upper end surface of the pushing block (5) comprises an inclined pushing surface (51) and two horizontal supporting surfaces (52), the front end of the pushing surface (51) is higher than the rear end, One of the supporting surfaces (52) is positioned at the front end of the pushing surface (51), the other supporting surface (52) is positioned at the rear end of the pushing surface (51), the lower end of the key seat (3) is propped against the upper end surface of the pushing block (5), when the key seat (3) is propped against the lower supporting surface (52), the upper end of the key seat (3) is close to the unlocking key of the trunk cover, the side surface of the lifting cam (41) is hinged with a connecting rod (42) through a pin shaft (412), the pin shaft (412) is eccentrically arranged with the rotating shaft (411), and when the convex part of the lifting cam (41) is vertically downward, the pin shaft (412) is positioned at the front side of the rotating shaft (411), the free end of the connecting rod (42) is hinged on the push block (5), a connecting sleeve (13) which is vertically arranged is fixedly connected on the supporting frame (11), the key seat (3) is columnar, the key seat (3) is glidingly penetrated in the connecting sleeve (13), the upper end of the key seat (3) extends out of the upper end of the connecting sleeve (13), a key head (31) made of rubber material is fixedly connected on the upper end of the key seat (3), the lower end of the key seat (3) extends out of the lower end of the connecting sleeve (13), the end face of the lower end of the key seat (3) is an arc face, the inner hole of the connecting sleeve (13) is a step hole with larger diameter at the lower end, a supporting convex edge (32) is circumferentially arranged on the outer wall of the key seat (3), The key seat (3) is also sleeved with a tensioning spring (33), the upper end of the tensioning spring (33) is propped against the step surface of the step hole, the lower end of the tensioning spring is propped against the supporting convex edge (32), the lower end of the key seat (3) is propped against the upper end surface of the push block (5) under the action of the tensioning spring (33), the power piece comprises a power cylinder (8) and a press block (81), the press block (81) is connected with a support frame (11) in a sliding manner along the front and back direction of the vehicle body, a piston rod of the power cylinder (8) is connected with the press block (81), the lower end surface of the press block (81) comprises a pressing inclined surface (811), a buffering cambered surface (812) and a guide plane (813), The buffer cambered surface (812) is positioned between the pressing inclined surface (811) and the guide plane (813), the rear end of the pressing inclined surface (811) is higher than the front end, the included angle between the pressing inclined surface (811) and the horizontal plane is 45-60 degrees, the rear end of the buffer cambered surface (812) is higher than the front end, the rear end of the buffer cambered surface (812) and the front end of the pressing inclined surface (811) are in smooth transition, the front end of the buffer cambered surface (812) and the rear end of the guide plane (813) are in smooth transition, the pressing wheel (61) is rotationally connected on the movable frame (7), the pressing wheel (61) is positioned below the pressing block (81), The wheel surface of the pressing wheel (61) is propped against the lower end surface of the pressing block (81), the supporting frame (11) comprises a vertical guide shaft (111) which is vertically arranged, the lower pressing frame (6) is fixedly connected with a vertical guide sleeve (62), the vertical guide sleeve (62) is slidably sleeved on the vertical guide shaft (111), the lower pressing frame (6) comprises two horizontally arranged longitudinal guide shafts (63), the moving frame (7) is rectangular plate-shaped, two opposite edges of the moving frame (7) are respectively provided with two longitudinal guide sleeves (71), the longitudinal guide sleeves (71) are slidably sleeved on the longitudinal guide shafts (63), the vertical guide shaft (111) is sleeved with a vertical spring (112) which can enable the lower pressing frame (6) to reset upwards, The vertical spring (64) is sleeved on the vertical guide shaft (63), the pressing seat (9) comprises a platy framework (91) and a rubber block (92) fixedly connected to the side face of the framework (91), the cross section of the rubber block (92) is L-shaped, the pressing concave surface (921) is positioned on the side face of the inner side of the rubber block (92), two connecting seats (72) are arranged on the lower side face of the movable frame (7), and the framework (91) is rotationally connected between the two connecting seats (72) through a connecting pin.
2. The automobile trunk lid fatigue test device according to claim 1, wherein the connecting rod (42) comprises a connecting pipe (421) and a telescopic rod (422), the rear end of the connecting pipe (421) is hinged with the lifting cam (41), the front end of the telescopic rod (422) is hinged with the pushing block (5), the rear end of the telescopic rod (422) is slidably inserted into the front end of the connecting pipe (421), the outer wall of the telescopic rod (422) is provided with an annular limiting convex edge (423), the connecting pipe (421) is internally provided with a buffer tension spring (424), the rear end of the buffer tension spring (424) is fixedly connected with the connecting pipe (421), the front end of the buffer tension spring (424) is fixedly connected with the front end face of the connecting pipe (421), the limiting convex edge (423) can be abutted against the front end face of the connecting pipe (421) under the action of the buffer tension spring (424), the supporting frame (11) is fixedly connected with a supporting plate (12), the supporting plate (12) is provided with a sliding groove (121) along the front-back direction of the automobile body, the pushing block (5) is slidably connected with the sliding groove (121), the inner limiting convex edge (122) is provided with the limiting part (122) and is horizontally abutted against the limiting part (122) when the front end (122) of the pushing block (122), the sliding groove (121) is internally provided with a return spring (123) which can enable the push block (5) to return and move forwards.
3. The automobile trunk lid fatigue test device according to claim 2, wherein a limiting block (723) is connected to the side face of the connecting seat (72), a reset torsion spring is sleeved on the connecting pin, one end of the reset torsion spring acts on the connecting seat (72), the other end acts on the framework (91), the front end of the lower pressing block (81) has a downward swinging trend under the action of the reset torsion spring, and when the lower pressing seat (9) is separated from the trunk lid, the edge of the framework (91) abuts against the limiting block (723).
4. The automobile trunk lid fatigue test device according to claim 3, wherein the connecting seat (72) is provided with an arc groove (721), the arc groove (721) and the connecting pin have the same central line, an adjusting bolt (722) is arranged in the arc groove (721) in a penetrating manner, the limiting block (723) is provided with a screw hole, and the end part of the adjusting bolt (722) extends out of the arc groove (721) and is in threaded connection with the screw hole of the limiting block (723).
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| CN201710932404.8A CN107560841B (en) | 2017-10-10 | 2017-10-10 | Automobile trunk lid fatigue test device |
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| CN201710932404.8A CN107560841B (en) | 2017-10-10 | 2017-10-10 | Automobile trunk lid fatigue test device |
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| CN109900497B (en) * | 2019-03-19 | 2020-09-22 | 徐明秀 | Door quantitative force application device applied to automobile manufacturing |
| CN110031205B (en) * | 2019-05-24 | 2021-03-30 | 安徽江淮汽车集团股份有限公司 | Automobile tail door test bed |
| CN110514454B (en) * | 2019-08-30 | 2021-01-01 | 奇瑞商用车（安徽）有限公司 | Device and method for testing reliability and durability of automobile electric tail gate system |
| CN110940504B (en) * | 2019-11-27 | 2021-11-02 | 合肥百川自动化科技有限公司 | Be used for car back of body door and suitcase lid to close endurance test equipment |
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| CN207181029U (en) * | 2017-10-10 | 2018-04-03 | 陈露露 | A kind of vehicle boot lid fatigue experimental device |
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| CN102175967B (en) * | 2011-01-05 | 2014-01-15 | 宁波福尔达智能科技股份有限公司 | Automobile reading lamp key detection device and automobile reading lamp key and tap position detection device |
| CN103278316B (en) * | 2013-05-14 | 2015-10-28 | 广州华德汽车弹簧有限公司 | The fatigue experimental device of car tail cover torsion-bar spring |
| KR101506406B1 (en) * | 2013-12-23 | 2015-04-01 | 주식회사 금창 | That automotive trunk lid hinge arm center control structure is equipped inspection device |
| CN203858097U (en) * | 2014-05-14 | 2014-10-01 | 奇瑞汽车股份有限公司 | Test device |
| CN204008153U (en) * | 2014-06-17 | 2014-12-10 | 北京汽车研究总院有限公司 | A kind of closing organ for vehicle boot lid long duration test |
| CN104296987B (en) * | 2014-10-29 | 2017-02-01 | 上海应用技术大学 | Car engine hood lock catch fatigue test device |
| CN107132059B (en) * | 2017-07-17 | 2019-06-18 | 上汽大众汽车有限公司 | An electric back cover durability test bench |
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Effective date of registration: 20240814 Address after: No. 57 Wangqiao Road, Xiongzhou Street, Liuhe District, Nanjing City, Jiangsu Province 210000 Applicant after: Hongxi (Nanjing) Technology Co.,Ltd. Country or region after: China Address before: No. 74, Hujiazhi Village, Pubagang Town, Sanmen County, Taizhou City, Zhejiang Province, China 317100 Applicant before: Chen Lulu Country or region before: China |
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