CN116380497A

CN116380497A - Test bench for vehicle automatic driving development

Info

Publication number: CN116380497A
Application number: CN202310660659.9A
Authority: CN
Inventors: 叶勇; 程昊
Original assignee: Anhui Zhongke Xingchi Automatic Driving Technology Co ltd
Current assignee: Anhui Zhongke Xingchi Automatic Driving Technology Co ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2023-07-04
Anticipated expiration: 2043-06-06
Also published as: CN116380497B

Abstract

The invention provides a test bench for vehicle automatic driving development, comprising: the test stand comprises a U-shaped test stand, a bottom detection device, a photoelectric switch and two side detection devices; the two test seats are preset on the detection channel according to the wheel track of the vehicle body to be tested. According to the test bench for automatic driving development of the vehicle, when the test bench is used for detecting, the two front wheels and the two rear wheels of the vehicle body to be tested are tested sequentially according to the test requirement, and the bottom, the outer side and the inner side of the vehicle wheel to be tested are measured sequentially when each wheel is tested, so that whether the vehicle body to be tested can stably and safely stop when the vehicle wheel is burst at different positions is realized, and the follow-up unmanned vehicle body can be better ensured to safely cope with the burst through detection.

Description

Test bench for vehicle automatic driving development

Technical Field

The invention relates to the field of automatic driving of vehicles, in particular to a test bench for automatic driving development of vehicles.

Background

The automatic driving automobile is also called an unmanned automobile, a computer driving automobile or a wheel type mobile robot, is an intelligent automobile for realizing unmanned through a computer system, and is cooperated with a global positioning system by means of artificial intelligence, visual computing, a radar, a monitoring device and the automatic driving automobile, so that a computer can automatically and safely operate a motor vehicle without any active operation of human beings.

In the automatic driving vehicle industry, all technologies are going from laboratories to mass production, and a verified link is needed, and before the automatic driving vehicle formally goes on the road, a targeted test is needed to prove the operation safety of the automatic driving vehicle. With the development of virtual reality technology at present, virtual streets, cities and villages, highways and the like are built by using a computer three-dimensional modeling mode to serve as test environments, and required test cases are added into the virtual environments to verify the running safety of the automatic driving vehicle;

in practical use, the vehicle can be subjected to tire burst due to the fact that tires are pricked to sharp objects and the like, after tire burst occurs, the vehicle body can be subjected to deflection vibration and the like to different degrees according to the condition of the vehicle speed at that time, traffic accidents are easy to occur when the vehicle speed is high, for unmanned vehicles, it is necessary to test whether the vehicle body can stably and safely stop under the condition of tire burst, and detection of whether the vehicle can safely and stably stop under the condition of real tire burst is not specially performed for automatic driving of the vehicle at present.

Therefore, it is necessary to provide a test bench for vehicle autopilot development that solves the above technical problems.

Disclosure of Invention

The invention provides a test bench for automatic driving development of a vehicle, which solves the problem that the detection of whether the automatic driving vehicle can safely and stably park under the condition of real tire burst is lacking at present.

In order to solve the technical problems, the test bench for vehicle automatic driving development provided by the invention comprises: the test stand comprises a U-shaped test stand, a bottom detection device, a photoelectric switch and two side detection devices;

the bottom detection device comprises a lifting device and a conical column, the bottom end of the conical column is arranged at the output end of the lifting device, the lifting device is arranged in the U-shaped test bench, and the top end of the conical column penetrates through the U-shaped test bench;

the two side edge detection devices are respectively arranged at two sides of the U-shaped test bench, each side edge detection device comprises a horizontal driving device and a cone thorn piece, one end of each cone thorn piece is arranged at the output end of each horizontal driving device, each horizontal driving device is arranged at the U-shaped test bench, the other end of each cone thorn piece penetrates through the U-shaped test bench, and when the cone thorn piece is used, each cone thorn piece is perpendicular to each cone column;

the photoelectric switch is used for controlling the start and stop of the horizontal driving device;

the two test seats are preset on the detection channel according to the wheel track of the vehicle body to be tested.

Preferably, the test seat further comprises a guard board, an embedded column is arranged at the bottom of the guard board, the embedded column is embedded in the detection channel, and one end of the guard board is connected with the U-shaped test board.

Preferably, the side edge detection device further comprises an arc-shaped connecting plate, the cone thorn piece is detachably mounted on the arc-shaped connecting plate, and the arc-shaped connecting plate is mounted at the output end of the horizontal driving device.

Preferably, the lifting device comprises a sliding frame, a motor, a nut, a driving rod and a guide supporting table, wherein the motor is slidably mounted in the U-shaped test table through the sliding frame, the nut is fixedly mounted in the U-shaped test table through a mounting frame, one end of the driving rod penetrates through the nut and then is connected with an output shaft of the motor, the driving rod is in threaded connection with the nut, the guide supporting table comprises a supporting portion and an inclined surface portion, the supporting portion is slidably arranged in the U-shaped test table, the inclined surface portion is arranged on one side, far away from the motor, of the supporting portion, the supporting portion is connected with the sliding frame through a connecting rod, and the bottom end of the conical column is in butt joint with the top end of the supporting portion.

Preferably, the horizontal driving device comprises a driving part and a transverse moving mechanism, the transverse moving mechanism comprises a rotary table, a driving arm and a connecting frame, one end of the driving arm is rotationally connected to the rotary table and located at one side of the center of the rotary table, the other end of the driving arm is rotationally connected with one end of the connecting frame, the other end of the connecting frame is connected with the arc-shaped connecting plate, the connecting frame is in sliding connection with the U-shaped test board, and the rotary table is installed at the output end of the driving part.

Preferably, the driving part is a square shaft, a square groove is formed in the center of the turntable, the turntable in the two side edge detection devices is sleeved on the driving rod at intervals, and the square shaft is connected to one end of the driving rod, which is far away from the motor.

Preferably, when the square shaft is inserted into the square groove, a gap is reserved between the square shaft and the square groove.

Preferably, the cone thorn piece includes basic shaft, pivot, taper rod and rotating device, the taper rod pass through the pivot rotate install in the one end of basic shaft, the other end demountable installation of basic shaft is in on the arc connecting plate, rotating device is used for the drive the pivot rotates.

Preferably, the rotating device comprises a toothed plate and a gear, the gear is mounted on the rotating shaft, and the toothed plate is suspended below the toothed plate.

Preferably, the bottom of toper pole is provided with the location sliding sleeve, the top of basic shaft hangs and is equipped with the location arm of sliding, the bar chamber has been seted up on the basic shaft.

Compared with the related art, the test bench for vehicle automatic driving development has the following beneficial effects:

the invention provides a test bench for automatic driving development of a vehicle, when the test bench is used for testing two front wheels and two rear wheels of the vehicle body to be tested in sequence according to test requirements, the test bench comprises the bottom, the outer side and the inner side of the vehicle wheel to be tested in sequence when each wheel is tested, when the bottom of the vehicle wheel is subjected to tire burst, the tapered column is pushed out of a U-shaped test bench through a lifting device when the corresponding state of the vehicle body to be tested is tested, the tapered column is in a retracted state, the vehicle to be tested sequentially passes through the detection channels at different speeds along the detection channels, the corresponding conditions of the vehicle at different vehicle speeds are detected, the vehicle wheel is punctured when the vehicle passes through the tapered column, so that whether the vehicle can be safely stopped under the condition of tire burst at the bottom of the vehicle wheel is detected, when the vehicle passes through the detection channels, the tapered column is driven by the lifting device when the vehicle passes through the U-shaped test bench, the corresponding side detection device pushes the tapered column to puncture the side of the tire, and whether the vehicle body can be stably and safely stopped under the condition of the tire burst is detected when the vehicle body is detected, and whether the vehicle body can be stably stopped under the condition of no tire burst is detected when the vehicle body is detected, and whether the vehicle body can be more stably and can be detected under the condition that the vehicle is not to be detected and can be continuously and safely stopped when the vehicle is detected.

Drawings

FIG. 1 is a schematic view of a test bench for vehicle autopilot development according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the inside of the U-shaped test stand shown in FIG. 1;

FIG. 3 is a schematic view of the mounting positions of two test seats of a test bench for vehicle autopilot development according to the present invention;

FIG. 4 is an enlarged schematic view of portion A shown in FIG. 2;

FIG. 5 is an enlarged schematic view of portion B shown in FIG. 2;

fig. 6 is a schematic diagram of switching of a driving part of a test bench for vehicle autopilot development according to the present invention, wherein (6 a) is a schematic diagram of a tapered column located on a supporting part, (6 b) is a schematic diagram of a tapered column located on an extension table and assembled with a rotating disc, and (6 c) is a schematic diagram of a driving part assembled with another rotating disc;

fig. 7 is a schematic diagram of a working principle of the side detection device of the test bench for vehicle automatic driving development provided by the invention, wherein (7 a) is a schematic diagram of a state of starting the side detection device, (7 b) is a schematic diagram of clockwise rotation of a conical rod to the same horizontal line with a base shaft, (7 c) is a schematic diagram of sleeving a positioning sliding sleeve and a positioning sliding arm, and (7 d) is a schematic diagram of extension of the conical rod to a maximum stroke;

fig. 8 is an enlarged view of fig. 7, wherein (8 a) is an enlarged view of (7 a), (8 b) is an enlarged view of (7 b), (8 c) is an enlarged view of (7 c), and (8 d) is an enlarged view of (7 d).

Reference numerals in the drawings:

1. a U-shaped test board, 101, an arc-shaped opening;

2. the bottom detection device 21, the sliding frame 22, the motor 23, the nut 24, the driving rod 25, the guide supporting table 26, the conical column 27 and the connecting rod;

251. a support portion 252, a ramp portion 253, an extension table,

3. the device comprises a side edge detection device 31, a driving part 32, a traversing mechanism 33, an arc-shaped connecting plate 34, a cone thorn piece 3411 and a strip-shaped cavity;

321. turntable 322, square groove 323, driving arm 324, connecting frame,

341. base shaft, 342, spindle, 343, tapered rod, 344, toothed plate, 345, gears,

4. an optoelectronic switch;

5. guard plates, 51, embedded columns;

61. a positioning slide arm, 62, a positioning slide sleeve;

7. a support base;

8. a detection channel;

9. and (3) a tire.

Detailed Description

The invention will be further described with reference to the drawings and embodiments.

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention provides a test bench for vehicle automatic driving development.

Referring to fig. 1 to 3 in combination, in one embodiment of the present invention, a test bench for vehicle autopilot development includes: the test device comprises two test seats, wherein each test seat comprises a U-shaped test table 1, a bottom detection device 2, a photoelectric switch 4 and two side detection devices 3;

the bottom detection device 2 comprises a lifting device and a conical column 26, wherein the bottom end of the conical column 26 is arranged at the output end of the lifting device, the lifting device is arranged in the U-shaped test bench 1, and the top end of the conical column 26 penetrates through the U-shaped test bench 1;

the two side edge detection devices 3 are respectively arranged at two sides of the U-shaped test bench 1, the side edge detection devices 3 comprise a horizontal driving device and a cone thorn piece 34, one end of the cone thorn piece 34 is arranged at the output end of the horizontal driving device, the horizontal driving device is arranged at the U-shaped test bench 1, the other end of the cone thorn piece 34 penetrates through the U-shaped test bench 1, and when the cone thorn piece 34 is used, the cone thorn piece 34 is perpendicular to the cone column 26;

the photoelectric switch 4 is used for controlling the start and stop of the horizontal driving device;

wherein, two the test seats are preset on the detection channel 8 according to the wheel track of the vehicle body to be tested.

During detection, according to the test requirement, two front wheels and two rear wheels of the vehicle body to be tested are tested in sequence, and the bottom, the outer side and the inner side of the wheels to be tested are measured in sequence when each wheel is tested, when the bottoms of the wheels are subjected to tire burst, the conical column 26 is pushed out of the U-shaped test bench 1 through the lifting device when the corresponding state of the vehicle body to be tested is tested, the conical thorn piece 34 is in a retracted state, the vehicle body to be tested sequentially passes through the detection channel 8 at different speeds along the detection channel 8, the corresponding conditions of the vehicle at different vehicle speeds are detected, the wheels are punctured when passing through the conical column 26, so that whether the vehicle can safely stop under the condition of tire burst at the bottom of the wheels is detected, when the wheels pass through the detection channel, the side burst condition is sequentially detected, the lifting device drives the conical column 26 to retract, when the vehicle passes through the U-shaped test bench 1, the corresponding side detection device 3 pushes the conical thorn piece 34 to puncture the side of the tire 9, and whether the vehicle body can stably stop under the condition of the tire 9 side of the vehicle body is detected when the side of the vehicle is punctured, and whether the vehicle body can stably stop under the detection condition of the vehicle body can be detected when the corresponding side detection channel 8 is detected, and whether the vehicle body can stably stop under the condition of no tire burst condition can be detected when the vehicle body can be detected, and whether the vehicle body can stably and can stably run under the condition of running under the condition of no condition when detection when the vehicle is detected when the vehicle and can be detected.

Wherein, a guide line is arranged on the detection channel 8, so that the vehicle can move along the guide line when running in a test, and the wheels can run along the middle of the U-shaped test bench 1;

the U-shaped test bench 1 is pre-buried on the detection channel 8, the two sides of the U-shaped test bench 1 extend out of the detection bench and are lower than the chassis of the vehicle body in height, and the cone thorn pieces 34 in the two side edge detection devices 3 perform tire pricking treatment on the lower side of the tire 9.

The position of the photoelectric switch 4 is specifically installed according to the size of a vehicle body and detection of a front wheel and a rear wheel, when the front wheel is detected, the photoelectric switch 4 is close to the U-shaped test bench 1, when the photoelectric switch 4 detects that a vehicle head passes through, the front wheel runs into the U-shaped test bench 1, the photoelectric switch 4 controls the horizontal driving device to quickly drive the cone thorn piece 34 to push out and return, and the front wheel is punctured; when detecting the rear wheel, photoelectric switch 4 installs in the position of keeping away from U-shaped testboard 1 to when photoelectric switch 4 detected the locomotive of waiting to detect the automobile body, the rear wheel was located U-shaped testboard 1, thereby side detection device 3 can puncture the rear wheel this moment.

Wherein a control switch is additionally arranged for manually controlling the lifting device and the horizontal driving device.

Referring to fig. 1 and 3, the test seat further includes a guard board 5, an embedded column 51 is disposed at the bottom of the guard board 5, the embedded column 51 is embedded in the detection channel 8, and one end of the guard board 5 is connected with the U-shaped test board 1.

Through setting up backplate 5 in one side of U-shaped testboard 1, after setting up two U-shaped testboards 1 on detecting the way 8, two backplate 5 form the protection passageway, when waiting to detect the vehicle, when great deflection appears after the tire burst, backplate 5 of both sides can block spacingly to the automobile body, avoids the automobile body to appear bigger deflection, improves the security of vehicle when detecting.

The distance between the two shields 5 is set to a value that allows maximum deflection of the vehicle, i.e. failure of detection when a vehicle collision with the shields 5 occurs.

The embedded columns 51 are arranged in a plurality, and the stability of the installation of the guard plate 5 is improved by arranging the embedded columns 51 and embedding the embedded columns 51.

Referring to fig. 2, the side edge detecting device 3 further includes an arc-shaped connecting plate 33, the cone member 34 is detachably mounted on the arc-shaped connecting plate 33, and the arc-shaped connecting plate 33 is mounted at the output end of the horizontal driving device.

Through setting up arc connecting plate 33, awl thorn piece 34 and arc connecting plate 33 demountable installation to can adjust awl thorn piece 34 and the position of arc connecting plate 33 installation, realize puncturing the detection to the different positions of tire 9 lateral surface or medial surface.

Wherein, arc openings 101 are arranged at the two sides of the U-shaped test bench 1 corresponding to the arc connection plates 33.

In this embodiment, a plurality of mounting holes are formed on the arc-shaped connection plate 33, nuts are arranged at positions of the arc-shaped connection plate 33 corresponding to the mounting holes, threaded shafts are correspondingly arranged at the mounting ends of the conical thorns 34, and the conical thorns 34 are in threaded connection with the nuts through the threaded shafts;

in other embodiments, an assembly block may be disposed at the mounting end of the cone member 34, and an assembly hole is formed in the assembly block, and the assembly block and the assembly hole are mounted by engaging a nut with a bolt.

Referring to fig. 4, in this embodiment, the lifting device includes a sliding frame 21, a motor 22, a nut 23, a driving rod 24 and a guiding support table 25, the motor 22 is slidably mounted in the U-shaped test table 1 through the sliding frame 21, the nut 23 is fixedly mounted in the U-shaped test table 1 through a mounting frame, one end of the driving rod 24 penetrates through the nut 23 and then is connected with an output shaft of the motor 22 and is in threaded connection with the nut 23, the guiding support table 25 includes a support portion 251 and a bevel portion 252, the support portion 251 is slidably disposed in the U-shaped test table 1, the bevel portion 252 is disposed on a side, away from the motor 22, of the support portion 251, the support portion 251 is connected with the sliding frame 21 through a connecting rod 27, and a bottom end of the tapered column 26 is abutted to a top end of the support portion 251.

When detecting the side of tire 9 and exploding, when the handling situation of vehicle under test, motor 22 clockwise rotation drives actuating lever 24 and rotates, actuating lever 24 and nut 23 effect, because nut 23 and U-shaped testboard 1 fixed connection, actuating lever 24 drives motor 22 and follows carriage 21 slip this moment, carriage 21 passes through connecting rod 27 and drives supporting part 251 and remove, tapered post 26 removes to extension bench 253 this moment along inclined plane portion 252, the inside of U-shaped testboard 1 is entered at the top of tapered post 26, thereby do not influence the handling situation of vehicle under test that detects tire 9 under the side and explode the condition.

Wherein, the through-hole has been seted up in the middle of the top of U-shaped testboard 1, and the toper post 26 runs through U-shaped testboard 1 through the through-hole, and the inside at U-shaped testboard 1 just is provided with the reinforcement pipe in the outside of toper post 26, can carry out spacingly to toper post 26 in the horizontal side, improves the stability of toper post 26 when the vehicle wheel passes through, avoids the wheel to the pore wall of toper post 26 to appear warping at the power that the horizontal direction applyed when the process makes the through-hole.

Wherein the end of the drive rod 24 adjacent to the motor 22 is provided with threads.

In this embodiment, the carriage 21 includes four slide bars fixed to the U-shaped test stand 1 and a fixing plate sleeved on the slide bars, the motor 22 is mounted on the fixing plate, and both ends of the connecting rod 27 are connected to the fixing plate and the supporting portion 251, respectively.

In other embodiments, a sliding rail may be disposed at the bottom of the inner wall of the U-shaped test stand 1, and the bottom of the fixing plate is slidably disposed on the sliding rail through a sliding sleeve.

Of course, in other embodiments, the lifting device may also employ an air cylinder, a hydraulic cylinder, an electric telescopic cylinder, or the like.

Referring to fig. 4 again, in this example, the horizontal driving device includes a driving portion 31 and a traversing mechanism 32, the traversing mechanism 32 includes a turntable 321, a driving arm 323 and a connecting frame 324, one end of the driving arm 323 is rotatably connected to the turntable 321 and located at one side of the center of the turntable 321, the other end of the driving arm 323 is rotatably connected to one end of the connecting frame 324, the other end of the connecting frame 324 is connected to the arc-shaped connecting plate 33, and the connecting frame 324 is slidably connected to the U-shaped test stand 1, and the turntable 321 is mounted at the output end of the driving portion 31.

When the side edge detection device 3 works, the driving part 31 drives the turntable 321 to rotate, the turntable 321 drives the driving arm 323 to follow a circle of rotation, the driving arm 323 pulls the connecting frame 324 to reciprocate horizontally once, the driving arm 323 drives the cone thorn piece 34 to reciprocate horizontally once through the arc-shaped connecting plate 33, namely, the cone thorn piece 34 stretches out and is pricked into the tire 9 and then pulled out, and tire burst operation is completed.

The inside of the U-shaped test board 1 is provided with a sliding rail, and the connecting frame 324 is arranged on the sliding rail in a sliding way;

the rotating disc 321 is eccentrically connected with a convex shaft, and one end of the driving arm 323 is sleeved on the convex shaft.

In one embodiment, the driving portion 31 adopts a driving motor, the driving motor drives the turntable 321 to rotate, and the driving motor drives the turntable 321 to rotate for one circle, that is, drives the cone thorn 34 to realize the operation of puncturing the tire 9 once, so that the operation of puncturing the tire 9 can be realized rapidly.

Referring to fig. 4, in another preferred embodiment, the driving portion 31 is a square shaft, a square groove 322 is formed in the center of the turntable 321, the turntable 321 in the two side edge detection devices 3 is sleeved on the driving rod 24 at a distance, and the square shaft is connected to one end of the driving rod 24 away from the motor 22.

When the puncture test on the bottom of the tire 9 is completed and the puncture detection on the side edge of the tire 9 is carried out, the motor 22 rotates clockwise to drive the driving rod 24 to move towards one side of the motor 22, when the conical column 26 falls onto the extension table 253 in the guide support table 25, the driving part 31 at the end part of the driving rod 24 is just inserted into the square groove 322 of the turntable 321 positioned at the front side towards one end of the motor 22, so that when the motor 22 rotates once again, the turntable 321 at the front side can be driven to rotate once, the conical puncture piece 34 in the side edge detection device 3 close to the outer side is driven to stretch, and the puncture treatment is carried out on the outer side of the tire 9;

when the driving rod 24 rotates and the driving rod 24 acts with the nut 23 to continue moving, wherein preferably, the motor 22 drives the driving rod 24 to rotate for two weeks, the square shaft is separated from the square groove 322 of the rotary table 321 at the front side, and the state change of the cone thorn piece 34 can be used for confirming whether the square shaft is assembled with the rotary table 321 at the front side or not when the motor 22 is controlled to rotate for the first circle by setting two weeks, and similarly, when the motor 22 continues to rotate clockwise, the square shaft and the rotary table 321 at the rear side are assembled, so that the cone thorn piece 34 in the side detection device 3 at the other side can be driven to stretch and contract to puncture the inner side of the tire 9, and the stability of the vehicle is detected when the inner side of the tire 9 is burst;

that is, by adjusting the state of the horizontal driving device, the motor 22 is used to simultaneously complete the adjustment of the tapered column 26 and the tapered members 34 in the two side edge detection devices 3, and the plurality of motors 22 are not required to be additionally arranged to respectively control and adjust.

When all the tests are completed, the motor 22 can be rotated anticlockwise, and the inner side, the outer side and the bottom of the tyre 9 are sequentially punctured.

The motor 22 adopts a servo motor and has a speed regulating function, and the speed of the motor 22 can be regulated according to the use requirement, such as the speed of the vehicle, so that the cone thorn 34 has enough speed to puncture the tyre 9.

Wherein, the inside of U-shaped testboard 1 is provided with supporting seat 7, and supporting seat 7 includes landing leg and arc seat, and the arc seat passes through the landing leg to be fixed in U-shaped testboard 1, and carousel 321 is connected with the arc seat rotation, supports carousel 321 through the arc seat, improves the stability of carousel 321 assembly.

In one embodiment, the square shaft is sized the same as the square groove 322, and when the square shaft is moved into contact with the square groove 322, the edges of the square shaft are in close alignment with the groove edges of the square groove 322, and when aligned, the square shaft is just moved into the square groove 322.

In another embodiment, when the square shaft is inserted into the square groove 322, a gap is left between the square shaft and the square groove 322.

By leaving a gap, that is, the cross section of the square groove 322 is slightly larger than that of the square shaft, when the square shaft is assembled with the square groove 322, and when the square shaft is slightly staggered from the square groove 322, the assembly can still be completed, and the fault tolerance of the square shaft inserted into the square groove 322 for successful assembly can be improved.

In yet another embodiment, the turntable 321 and the supporting seat 7 may be elastically connected by a spring, that is, there is a moving space between the turntable 321 and the supporting seat 7, so that when the square shaft is assembled with the square groove 322, even if the square shaft is already abutted against but not aligned with the square groove 322, the square shaft pushes the turntable 321 to press the elastic member, and when the square shaft is aligned with the square groove 322, the square shaft is pushed by the elastic member to complete the assembly with the square groove 322.

Referring to fig. 5, the cone member 34 includes a base shaft 341, a rotating shaft 342, a cone-shaped rod 343, and a rotating device, wherein the cone-shaped rod 343 is rotatably mounted on one end of the base shaft 341 through the rotating shaft 342, the other end of the base shaft 341 is detachably mounted on the arc-shaped connecting plate 33, and the rotating device is used for driving the rotating shaft 342 to rotate.

When the side edge of the tire 9 is not punctured, the conical rod 343 is rotated to be perpendicular to the base shaft 341, so that the two sides of the U-shaped test bench 1 are spaced from the wheels sufficiently, the wheels are prevented from being impacted on the conical rod 343 due to the offset of the vehicle body after the puncturing during the bottom puncturing test, and the wheels of the vehicle body to be detected are prevented from being impacted with the conical rod 343 due to the offset of the running of the wheels when the wheels of the vehicle body pass through the U-shaped test bench 1.

The mounting end of the cone member 34 is the end of the base shaft 341 away from the cone-shaped rod 343.

Referring to fig. 5 and fig. 7 and 8 again, in the present embodiment, the rotating device includes a toothed plate 344 and a gear 345, the gear 345 is mounted on the rotating shaft 342, and the toothed plate 344 is suspended below the toothed plate 344.

Referring to fig. 7 (7 a) to (7 b) and fig. 8 (8 a) to (8 b), when the turntable 321 rotates clockwise, the driving arm 323 rotates from the left side of the turntable 321 to the top of the turntable 321, and then the driving arm 323 drives the connecting frame 324 to move to the right side, and the connecting frame 324 drives the base shaft 341 to move to the right side by one section through the arc connecting plate 33, and then the gear 345 acts on the toothed plate 344, and rotates ninety degrees clockwise, so that the conical rod 343 and the base shaft 341 are positioned on the same straight line, the following turntable 321 rotates next, and when the base shaft 341 drives the toothed plate 344 to move forward continuously, the gear 345 is separated from the toothed plate 344, and when the turntable 321 rotates completely once, the conical rod 341 moves forward to the maximum stroke and then returns to the original position, in this process, the gear 345 acts on the toothed plate 344 again, rotates ninety degrees counterclockwise, and the conical rod 343 rotates to retract vertically to the base shaft 341 again, so that the adjustment of the conical rod 343 can be completed without setting an additional driving motor.

Wherein, pinion rack 344 passes through the mount and is connected with U-shaped testboard 1 can be dismantled, and the mount passes through the bolt to be connected with U-shaped testboard 1, and a plurality of screw holes have been seted up to the correspondence on the corresponding U-shaped testboard 1, realize the installation to the mount, and the screw hole corresponds the setting with the mounting hole on the arc connecting plate 33.

Of course, in other embodiments, the rotation device may be configured as a driving motor, where the driving motor is connected to the base shaft 341 through a bracket, and an output shaft of the driving motor is connected to the rotating shaft 342.

With continued reference to fig. 5, 7 and 8, a positioning sliding sleeve 62 is disposed at the bottom end of the conical rod 343, a positioning sliding arm 61 is suspended above the base shaft 341, and a bar-shaped cavity 3411 is formed in the base shaft 341.

By providing the positioning slide arm 61 and the positioning slide sleeve 62, after the tapered rod 343 is rotated to ninety degrees, the positioning slide sleeve 62 is aligned with the positioning slide arm 61 at this time, please refer to fig. 7 (7 b) to (7 c) and fig. 8 (8 b) to (8 c), and the rotating disc 321 is rotated again, so that the connecting end of the driving arm 323 and the rotating disc 321 is rotated to the top end of the rotating disc 321, and the positioning slide sleeve 62 is just sleeved on the positioning slide arm 61 at this time to prepare for the subsequent puncturing of the tire 9.

Through setting up location arm 61 and location sliding sleeve 62, can be to the axial spacing of conical rod 343 to guarantee that conical rod 343 can stably realize the operation of puncturing to tire 9 later, avoid when pricking the child operation, conical rod 343 appears deflecting.

Wherein the positioning slide arm 61 is connected with the U-shaped test stand 1 through a mounting frame.

In one embodiment, during the test by using the side edge detecting device 3, the tapered rod 343 is first adjusted to rotate ninety degrees clockwise to be in the same horizontal line with the base shaft 341, and the positioning sliding sleeve 62 is sleeved on the positioning sliding arm 61, at this time, the bottom end of the tapered rod 343 rotates into the bar-shaped cavity 3411, and during the subsequent detection, the motor 22 continues to rotate again to drive the end, connected with the rotating disc 321, of the driving arm 323 to rotate to the original position, so as to realize the operation of puncturing the tire 9 and the rotation of the tapered rod 343 again to be perpendicular to the base shaft 341;

in another embodiment, the motor 22 may directly drive the turntable 321 to rotate once during testing, the tapered rod 343 is rotated to be in the same horizontal line with the base shaft 341, the positioning sliding sleeve 62 is sleeved on the positioning sliding arm 61 to puncture and retract the tire 9, the positioning sliding sleeve 62 is separated from the positioning sliding arm 61, the gear 345 acts on the toothed plate 344 again, and the tapered rod 343 is rotated to be perpendicular to the base shaft 341.

The working principle of the test bench for vehicle automatic driving development provided by the invention is as follows:

during detection, two front wheels and two rear wheels can be detected sequentially, and two front wheels or two rear wheels or one front wheel and one rear wheel can be detected simultaneously as required.

When the left front wheel is detected, the conical column 26 in the test seat corresponding to the right front wheel is retracted;

then the bottom, the outer side edge and the inner side edge of the left front wheel can be sequentially punctured for testing;

firstly, detecting the puncture of the bottom of a left front wheel, keeping a conical column 26 protruding out of a U-shaped test table 1, and when a vehicle body to be detected runs through the U-shaped test table 1, acting the bottom of the left front wheel with the conical column 26 to be punctured, and detecting whether the vehicle body to be detected can stably and safely stop;

referring to fig. 6 (6 a) to (6 b), when the bottom of the wheel is punctured and the vehicle body to be detected is punctured, the side edge of the wheel is punctured for detection, and during detection, the motor 22 rotates clockwise, the driving rod 24 acts with the nut 23, and drives the motor 22 to move to the side far away from the driving part 31, and the sliding frame 21 drives the guiding support table 25 to move, the tapered column 26 moves down onto the extending table 253, and the driving part 31 is inserted into the square groove 322 of the left rotary table 321;

when the outer side of the tire 9 of the vehicle body to be detected is detected later:

referring to fig. 7 (7 a) to (7 b) and fig. 8 (8 a) to (8 b), the turntable 321 rotates clockwise, so that one end of the driving arm 323 connected with the turntable 321 rotates from the left side of the turntable 3221 to the top of the turntable 321, the driving arm 323 drives the connecting frame 324 to move to the right side to one end, the connecting frame 324 drives the base shaft 341 to move to the right side through the arc-shaped connecting plate 33, the gear 345 acts on the toothed plate 344, and rotates ninety degrees clockwise, so that the conical rod 343 and the base shaft 341 are positioned on the same straight line;

referring to fig. 7 (7 b) to (7 c) and fig. 8 (8 b) to (8 c), the turntable 321 rotates again, so that the connection end of the driving arm 323 and the turntable 321 rotates to the top end of the turntable 321, and the positioning sliding sleeve 62 is just sleeved on the positioning sliding arm 61 to prepare for the subsequent puncturing of the tire 9;

when the photoelectric switch 4 detects the running vehicle head, the front wheel is located in the U-shaped test stand 1, and the motor 22 continues to rotate for two hundred seventy degrees to the original position, in the process, please refer to fig. 7 (7 c) to (7 d) and fig. 8 (8 c) to (8 d), wherein when the turntable 321 rotates for ninety degrees, the driving arm 323 again pulls the connecting frame 324 to drive the cone-shaped element 34 to move to the right side to the maximum stroke, namely, the tire 9 is punctured; when the connecting frame 324 is pushed to the original position by the driving arm 323 after being rotated for one hundred eighty degrees, the connecting frame 324 drives the cone thorn piece 34 to the original position through the arc-shaped connecting plate 33, the positioning sliding sleeve 62 is firstly separated from the positioning sliding arm 61 in the pulling back process, then the gear 345 is contacted with the toothed plate 344, the gear 345 rotates for ninety degrees anticlockwise, the cone-shaped rod 343 rotates to be ninety degrees with the base shaft 341, the cone-shaped rod 343 is retracted again, and the driving part 31 is separated from the square groove 322 in the turntable 321 positioned at the left side at the moment.

Referring to fig. 6 (6 b) to (6 c), when the inner side of the vehicle wheel is to be punctured, the motor 22 continues to drive, the driving rod 24 continues to act on the nut 23, the driving rod 24 continues to move to the right, the square shaft is assembled with the turntable 321 at the right, and the inner side of the left front wheel of the vehicle body to be detected is punctured to test the performance of the vehicle body to be detected.

The right front wheel and the two rear wheels can be sequentially detected in the same way.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.

Claims

1. A test bench for vehicle autopilot development, comprising: the test stand comprises a U-shaped test stand, a bottom detection device, a photoelectric switch and two side detection devices;

2. The test bench for vehicle autopilot development of claim 1 wherein the test seat further comprises a guard plate, the bottom of the guard plate is provided with embedded posts, the embedded posts are embedded in the detection channel, and one end of the guard plate is connected with the U-shaped test bench.

3. The test bench for vehicle autopilot development of claim 1 wherein said side edge detection means further includes an arcuate web upon which said cone member is removably mounted, said arcuate web being mounted to an output of said horizontal drive means.

4. The test bench for vehicle autopilot development of claim 3 wherein the lifting device comprises a carriage, a motor, a nut, a drive rod and a guide support, wherein the motor is slidably mounted in the U-shaped test bench through the carriage, the nut is fixedly mounted in the U-shaped test bench through a mounting frame, one end of the drive rod penetrates through the nut and then is connected with an output shaft of the motor, the guide support is in threaded connection with the nut, the guide support comprises a support portion and a bevel portion, the support portion is slidably arranged in the U-shaped test bench, the bevel portion is arranged on one side, far away from the motor, of the support portion, the support portion is connected with the carriage through a connecting rod, and the bottom end of the tapered column is abutted to the top end of the support portion.

5. The test bench for vehicle autopilot development of claim 4 wherein the horizontal drive means comprises a drive section and a traversing mechanism, the traversing mechanism comprising a turntable, a drive arm and a link, one end of the drive arm being rotatably connected to the turntable and located on one side of the center of the turntable, the other end of the drive arm being rotatably connected to one end of the link, the other end of the link being connected to the arcuate connecting plate, and the link being slidably connected to the U-shaped test bench, the turntable being mounted to the output end of the drive section.

6. The test bench for vehicle autopilot development of claim 5 wherein said drive section is a square shaft, a square slot is provided in the center of said turntable, said turntable spacers in both said side edge detection means are mounted on said drive rod, said square shaft is connected to said drive rod at an end thereof remote from said motor.

7. The test bench for vehicle autopilot development of claim 6 wherein a gap is left between said square shaft and said square groove when said square shaft is inserted into said square groove.

8. A test bench for vehicle autopilot development as defined in claim 3 wherein said cone member includes a base shaft, a spindle, a cone lever rotatably mounted to one end of said base shaft by the spindle, and a rotating means detachably mounted to said arcuate connecting plate at the other end of said base shaft for driving said spindle.

9. The test bench for vehicle autopilot development of claim 8 wherein the rotating means comprises a toothed plate and a gear, the gear mounted to the shaft, the toothed plate suspended below the toothed plate.

10. The test bench for vehicle autopilot development of claim 9 wherein a positioning slide sleeve is provided at the bottom end of the tapered rod, a positioning slide arm is suspended above the base shaft, and a bar-shaped cavity is provided on the base shaft.