A five-axis steering test device for intelligent connected vehicles

Abstract

The present invention discloses a five-axis steering test device for an intelligent networked vehicle, comprising a vehicle steering mechanism and a test bench, wherein the steering mechanism comprises a mounting frame, wherein both ends of the mounting frame are rotatably connected with a rotating shaft, a steering wheel is mounted on the rotating shaft, and transmission plates are mounted on the two rotating shafts, and one end of the two transmission plates is rotatably connected with a first transmission rod and a second transmission rod respectively. The five-axis steering test device for an intelligent networked vehicle of the present invention can start the fourth motors on the two L-shaped plates respectively during the test, adjust the height difference of the steering wheels on the two U-shaped plates, and then start the fifth motors on the two circular plates respectively, and form the fourth and fifth axis mechanisms in the detection process by rotating the two rotating rods respectively, so as to facilitate the simulation of the steering results of the two steering wheels under different resistance conditions. During the entire test process, the steering structure of the vehicle steering mechanism under various conditions can be simulated, thereby improving the diversity of the steering test.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile production, and in particular to a five-axis steering test device for an intelligent networked automobile. Background Art

[0002] The rack and pinion steering system has been widely used in cars, and the rationality and reliability of its power assistance are related to the comfort and safety of car operation. The steering test bench is an important device for testing and detecting the performance of the steering system.

[0003] The steering test benches currently under development are mainly two-axis and three-axis. Since these test benches take fewer influencing factors into consideration and have fewer loaded axles, there is a large gap between the simulated working conditions and the actual working conditions. Most of them are only used for product performance testing. Summary of the invention

[0004] The purpose of the present invention is to provide a five-axis steering test device for an intelligent connected vehicle to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a five-axis steering test device for an intelligent networked vehicle, comprising a vehicle steering mechanism and a test bench, the steering mechanism comprising a mounting frame, both ends of the mounting frame are rotatably connected with a rotating shaft, a steering wheel is installed on the rotating shaft, two transmission plates are installed on the rotating shafts, one end of the two transmission plates is rotatably connected with a first transmission rod and a second transmission rod respectively, the first transmission rod is slidably connected to the second transmission rod, a push plate is fixed on the rotating shaft, a push rod is installed on the push plate, a support platform is installed on the test bench, a first limiting mechanism for limiting the mounting frame and a first axis mechanism for detecting the vehicle steering mechanism are arranged on the support platform, two L-shaped plates are connected to the test bench through an adjustment mechanism, the two L-shaped plates are respectively connected to a circular plate through a second axis mechanism and a third axis mechanism, the two circular plates are respectively connected to a U-shaped plate through a fourth axis mechanism and a fifth axis mechanism, and the two U-shaped plates are provided with a second limiting mechanism for facilitating the limiting of the steering wheel.

[0006] Preferably, the first limiting mechanism includes a sliding groove opened on the upper end of the support platform, the sliding groove is provided with a T-slot, and two T-plates matching therewith are slidably connected to the T-slot, clamping plates are fixed to the two T-plates, and first threaded sleeves are installed on the two T-plates, and the threads of the two first threaded sleeves are arranged in opposite directions, and a first double-headed screw rod is rotatably connected to the T-slot, and the two first threaded sleeves are respectively meshed with the two ends of the first double-headed screw rod, and a first motor for driving the first double-headed screw rod is installed on the support platform.

[0007] Preferably, the first axis mechanism includes a mounting plate, a driving mechanism for driving the mounting plate is arranged on the support platform, a first threaded tube is installed on the mounting plate, a first threaded rod is threadedly connected to the first threaded tube, a connecting plate is rotatably connected to the first threaded rod, a sleeve is installed on the connecting plate, and the sleeve is sleeved on one end of the push rod.

[0008] Preferably, the driving mechanism includes a square plate mounted on a support platform, a square groove is formed on the square plate, the mounting plate is slidably connected to the square groove, a second threaded rod is rotatably connected to the square groove, the mounting plate and the second threaded rod are meshed with each other, and a second motor for driving the second threaded rod is mounted on the square plate.

[0009] Preferably, the adjustment mechanism includes a fixed plate fixed on both sides of the test bench, a plurality of first guide rods and a second double-ended screw are installed between the two fixed plates, a second threaded sleeve is installed on the two L-shaped plates, the thread rotation directions between the two second threaded sleeves are arranged in opposite directions, the two second threaded sleeves are respectively meshed with the two ends of the second double-ended screw, and a third motor for driving the second double-ended screw is installed on the fixed plate.

[0010] Preferably, the second axis mechanism and the third axis mechanism have the same structure, the second axis mechanism includes a second threaded tube rotatably connected to the L-shaped plate, the second threaded tube is threadedly engaged with a third threaded rod, the other end of the third threaded rod is fixed to the lower end of the circular plate, a plurality of sliding rods and fixed rods are respectively installed on one side of the L-shaped plate and the circular plate, each of the sliding rods is slidably connected to each fixed rod, and a fourth motor for driving the second threaded tube is installed on the L-shaped plate.

[0011] Preferably, the fourth axis mechanism and the fifth axis mechanism have the same structure, the fourth axis mechanism includes a rotating rod rotatably connected to the circular plate, one end of the rotating rod is fixed to the U-shaped plate, a fifth motor is installed on the circular plate, and pulleys are respectively fixed on the side walls of the fifth motor and the rotating rod, and the two pulleys are driven by a belt.

[0012] Preferably, the second limiting mechanism comprises sliding grooves provided on both sides of the U-shaped plate, the two sliding grooves are connected with extrusion plates via a connecting assembly, and the upper ends of the two extrusion plates are provided with inclined surfaces.

[0013] Preferably, the connecting assembly includes two L-shaped operating plates fixed on the side walls of the U-shaped plate, the two L-shaped operating plates are slidably connected with round rods, one end of the two round rods is fixed to one side of the extrusion plate, and springs are sleeved on the side walls of the two round rods.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The five-axis steering test device for an intelligent networked vehicle of the present invention starts the third motor to drive the second double-headed screw to rotate under force when performing a steering test on the steering mechanism of the vehicle. Since the threads on the two second threaded sleeves are arranged in opposite directions, during the rotation of the second double-headed screw, through the mutual meshing transmission between the second double-headed screw and the two second threaded sleeves and the guiding effect of each first guide rod, the two L-shaped plates are forced to move closer to or away from each other, and the spacing between the two U-shaped plates is further adjusted so that the two U-shaped plates are respectively located below the two steering wheels, which further facilitates the detection of vehicle steering mechanisms of different specifications and improves the diversity of the steering test device.

[0016] The five-axis steering test device for intelligent network-connected vehicles of the present invention can start the fourth motors on the two L-shaped plates respectively during the test, so that the two circular plates and the U-shaped plate can be moved upward or downward respectively, and the height difference of the steering wheels on the two U-shaped plates can be adjusted to form the second axis and the third axis mechanism in the detection process, which is convenient for the steering results of the two steering wheels under different height conditions, and then the fifth motors on the two circular plates are started respectively, and the two rotating rods are driven to rotate respectively through the transmission of the pulley and the belt, and the fourth axis and the fifth axis mechanism in the detection process are formed through the respective rotation of the two rotating rods, which is convenient for simulating the steering results of the two steering wheels under different resistance conditions. During the entire test process, the steering structure of the automobile steering mechanism under various conditions can be simulated to improve the diversity of steering tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the second axis, the third axis, the fourth and the fifth mechanism structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the first axis mechanism and the driving mechanism of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the first limiting mechanism of the present invention;

[0021] Figure 5 for Figure 1 A schematic diagram of the enlarged structure of the area at center A;

[0022] Figure 6 for Figure 2 A schematic diagram of the enlarged structure of the area at B in the middle;

[0023] Figure 7 for Figure 3 A schematic diagram of the enlarged structure of the area at C in the middle;

[0024] Figure 8 for Figure 4 Schematic diagram of the enlarged structure of the area D in the middle.

[0025] In the figure: 101-mounting frame; 102-steering wheel; 103-transmission plate; 104-first transmission rod; 105-second transmission rod; 106-push plate; 107-push rod; 2-test bench; 3-support bench; 401-sliding groove; 402-T-slot; 403-T-plate; 404-clamping plate; 405-first threaded sleeve; 406-first double-headed screw rod; 407-first motor; 501-mounting plate; 502-first threaded tube; 503-first threaded rod; 504-connecting plate; 505-sleeve; 601-square plate; 602-square groove; 603-second threaded rod; 604 -second motor; 701-fixed plate; 702-first guide rod; 703-second double-headed screw; 704-second threaded sleeve; 705-third motor; 8-L-shaped plate; 901-second threaded tube; 902-third threaded rod; 903-fourth motor; 904-sliding rod; 905-fixed rod; 10-reciprocating plate; 1101-rotating rod; 1102-fifth motor; 1103-pulley; 1104-belt; 12-U-shaped plate; 1301-slideway; 1302-extrusion plate; 1303-inclined surface; 1304-L-shaped operating plate; 1305-round rod; 1306-spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-8The present invention provides a technical solution: a five-axis steering test device for an intelligent networked vehicle, comprising a vehicle steering mechanism and a test bench 2, wherein the steering mechanism comprises a mounting frame 101, both ends of the mounting frame 101 are rotatably connected with a rotating shaft, a steering wheel 102 is mounted on the rotating shaft, a transmission plate 103 is mounted on the two rotating shafts, one end of the two transmission plates 103 is rotatably connected with a first transmission rod 104 and a second transmission rod 105, the first transmission rod 104 is slidably connected to the second transmission rod 105, a push plate 106 is fixed on the rotating shaft, and the push plate 10 6 is installed with a push rod 107, a support platform 3 is installed on the test bench 2, a first limiting mechanism for limiting the mounting frame 101 and a first axis mechanism for detecting the automobile steering mechanism are arranged on the support platform 3, two L-shaped plates 8 are connected to the test bench 2 through an adjustment mechanism, the two L-shaped plates 8 are respectively connected with a circular plate 10 through a second axis mechanism and a third axis mechanism, the two circular plates 10 are respectively connected with a U-shaped plate 12 through a fourth axis mechanism and a fifth axis mechanism, and the two U-shaped plates 12 are respectively provided with a second limiting mechanism for facilitating the limiting of the steering wheel 102.

[0028] The first limiting mechanism includes a sliding groove 401 provided on the upper end of the support platform 3, a T-shaped groove 402 is provided on the sliding groove 401, two T-shaped plates 403 matching therewith are slidably connected to the T-shaped groove 402, a clamping plate 404 is fixed to the two T-shaped plates 403, a first threaded sleeve 405 is installed on the two T-shaped plates 403, the threads of the two first threaded sleeves 405 are arranged in opposite directions, a first double-headed screw rod 406 is rotatably connected to the T-shaped groove 402, the two first threaded sleeves 405 are respectively meshed with the two ends of the first double-headed screw rod 406, and a first threaded sleeve 405 for the first double-headed screw rod 406 is installed on the support platform 3. 06 drives the first motor 407, starts the first motor 407, and drives the first double-headed screw 406 to rotate. Because the threads inside the two first threaded sleeves 405 are arranged in opposite directions, during the rotation of the first double-headed screw 406, through the mutual transmission between the two first threaded sleeves 405 and the first double-headed screw 406 and the guiding and limiting effect of the T-slot 402 and the T-plate 403, the two clamping plates 404 are subjected to force and move towards each other and abut against the side walls of the mounting frame 101, so that the mounting frame 101 is limited and fixed on the support platform 3, which is convenient for limiting and fixing the steering mechanism of the automobile.

[0029] The first axis mechanism includes a mounting plate 501, and a driving mechanism for driving the mounting plate 501 is arranged on the support platform 3. A first threaded tube 502 is installed on the mounting plate 501, and a first threaded rod 503 is threadedly engaged with the first threaded tube 502. A connecting plate 504 is rotatably connected to the first threaded rod 503, and a sleeve 505 is installed on the connecting plate 504, and the sleeve 505 is sleeved on one end of the push rod 107.

[0030] The driving mechanism includes a square plate 601 installed on the support platform 3, and a square groove 602 is opened on the square plate 601. The mounting plate 501 is slidably connected to the square groove 602. The second threaded rod 603 is rotatably connected to the square groove 602. The mounting plate 501 and the second threaded rod 603 are meshed with each other. A second motor 604 for driving the second threaded rod 603 is installed on the square plate 601. The second motor 604 is started to drive the second threaded rod 603 to rotate. Through the meshing transmission between the second threaded rod 603 and the mounting plate 501 and the guiding effect of the square groove 602 on the mounting plate 501, the mounting plate 501 is moved after being subjected to force. In the process of the mounting plate 501 being subjected to force and moving, the push rod 107 and the push plate 106 are driven to move through the connecting plate 504, and the movement of the push plate 106 drives the rotating shaft to rotate, and further drives the two steering wheels 102 to perform steering tests.

[0031] The adjustment mechanism includes a fixing plate 701 fixed on both sides of the test bench 2, a plurality of first guide rods 702 and a second double-ended screw 703 are installed between the two fixing plates 701, a second threaded sleeve 704 is installed on the two L-shaped plates 8, the threads of the two second threaded sleeves 704 are arranged in opposite directions, and the two second threaded sleeves 704 are respectively meshed with the two ends of the second double-ended screw 703, and a third motor 705 for driving the second double-ended screw 703 is installed on the fixing plate 701. The third motor 705 is started to drive the second double-ended screw 70 3 is rotated under force. Since the threads on the two second threaded sleeves 704 are arranged in opposite directions, during the rotation of the second double-ended screw 703, through the mutual meshing transmission between the second double-ended screw 703 and the two second threaded sleeves 704 and the guiding effect of each first guide rod 702, the two L-shaped plates 8 are forced to move closer to or away from each other, and the spacing between the two U-shaped plates 12 is further adjusted so that the two U-shaped plates 12 are respectively located below the two steering wheels 102, which is further convenient for testing the steering mechanisms of vehicles with different specifications.

[0032] The structures of the second axis mechanism and the third axis mechanism are the same. The second axis mechanism includes a second threaded tube 901 rotatably connected to the L-shaped plate 8. The second threaded tube 901 is threadedly engaged with a third threaded rod 902. The other end of the third threaded rod 902 is fixed to the lower end of the circular plate 10. A plurality of sliding rods 904 and a fixed rod 905 are respectively installed on one side of the L-shaped plate 8 and the circular plate 10. Each sliding rod 904 is slidably connected to each fixed rod 905. A fourth motor 903 for driving the second threaded tube 901 is installed on the L-shaped plate 8. The fourth motors 903 on the two L-shaped plates 8 can be started respectively to make the two circular plates 10 and the U-shaped plate 12 move upward or downward respectively, and adjust the height difference of the steering wheels 102 on the two U-shaped plates 12 to form the second axis and the third axis mechanism in the detection process, which is convenient for the steering results of the two steering wheels 102 under different height conditions.

[0033] The structures of the fourth axis mechanism and the fifth axis mechanism are the same. The fourth axis mechanism includes a rotating rod 1101 rotatably connected to the circular plate 10, one end of the rotating rod 1101 is fixed to the U-shaped plate 12, and a fifth motor 1102 is installed on the circular plate 10. Pulleys 1103 are respectively fixed on the side walls of the fifth motor 1102 and the rotating rod 1101. The two pulleys 1103 are driven by a belt 1104 to start the fifth motors 1102 on the two circular plates 10 respectively, and the two rotating rods 1101 are driven to rotate respectively by the transmission of the pulleys 1103 and the belt 1104. The fourth axis and the fifth axis mechanism are formed in the detection process through the rotation of the two rotating rods 1101, which is convenient for simulating the steering results of the two steering wheels 102 under different resistance conditions. During the entire test process, the steering structure of the automobile steering mechanism under various conditions can be simulated to improve the diversity of steering tests.

[0034] The second limiting mechanism includes a slide groove 1301 opened on both sides of the U-shaped plate 12, and the two slide grooves 1301 are connected to the extrusion plates 1302 through a connecting component. The upper ends of the two extrusion plates 1302 are provided with inclined surfaces 1303. The steering wheel 102 is limited and fixed inside the U-shaped plate 12 through the second limiting mechanism.

[0035] The connecting assembly includes two L-shaped operating plates 1304 fixed on the side walls of the U-shaped plate 12, and round rods 1305 are slidably connected to the two L-shaped operating plates 1304. One end of the two round rods 1305 is fixed to one side of the extrusion plate 1302, and springs 1306 are sleeved on the side walls of the two round rods 1305. Through the connecting assembly, the resetting movement of the extrusion plate 1302 after extrusion is facilitated.

[0036] When the steering test is performed on the automobile steering mechanism, first, the mounting frame 101 on the automobile steering mechanism is placed inside the sliding groove 401 on the support platform 3, so that the mounting frame 101 is located between the two clamping plates 404, and the first motor 407 is started to drive the first double-headed screw rod 406 to rotate. Because the threads inside the two first threaded sleeves 405 are arranged in opposite directions, during the rotation of the first double-headed screw rod 406, through the mutual transmission between the two first threaded sleeves 405 and the first double-headed screw rod 406 and the guiding and limiting effect of the T-slot 402 and the T-plate 403, the two clamping plates 404 are forced to move closer to each other and abut against the side walls of the mounting frame 101, and the mounting frame 101 is limited and fixed on the support platform 3, which is convenient for limiting and fixing the automobile steering mechanism, improving the stability during the steering test, and during the detection process, according to the automobile The spacing between the two steering wheels 102 on the vehicle steering mechanism is adjusted, and the spacing between the two U-shaped plates 12 is adjusted so that the two U-shaped plates 12 are respectively located below the two steering wheels 102. During the adjustment process, the third motor 705 is started to drive the second double-headed screw 703 to rotate under force. Because the threads on the two second threaded sleeves 704 are arranged in opposite directions, during the rotation of the second double-headed screw 703, through the mutual meshing transmission between the second double-headed screw 703 and the two second threaded sleeves 704 and the guiding effect of each first guide rod 702, the two L-shaped plates 8 are forced to move closer to or away from each other, and the spacing between the two U-shaped plates 12 is further adjusted so that the two U-shaped plates 12 are respectively located below the two steering wheels 102, which further facilitates the detection of automobile steering mechanisms of different specifications, thereby improving the diversity of the steering test device;

[0037] Then, after the mounting frame 101 is fixed, the fourth motor 903 is started to drive the second threaded tube 901 to rotate. During the rotation of the second threaded tube 901, the meshing transmission between the second threaded tube 901 and the third threaded rod 902 and the guiding action between each sliding rod 904 and the fixed rod 905 cause the circular plate 10 to move under force. During the movement, the two steering wheels 102 are respectively located inside the two U-shaped plates 12. When the steering wheel 102 moves toward the inside of the U-shaped plate 12, the steering wheel 102 abuts against the inclined surface 1303 on the extrusion plate 1302, pushing the extrusion plate 1302. The rod 1305 slides on the slide groove 1301 and pushes the rod 1305 to slide on the L-shaped operating plate 1304, driving the spring 1306 to deform under stress. When the steering wheel 102 moves to the inside of the U-shaped plate 12, the two extrusion plates 1302 are reset under the elastic force of the spring 1306. During the reset process, the two extrusion plates 1302 are pressed against the two sides of the steering wheel 102 to limit the steering wheel 102. Then, the first threaded rod 503 is rotated on the first threaded tube 502. After the first threaded rod 503 is lifted to a certain height, the sleeve 505 on the connecting plate 504 is sleeved and connected with one end of the push rod 107.

[0038] Finally, during the test, the second motor 604 is started to drive the second threaded rod 603 to rotate, and the mounting plate 501 is moved after being subjected to force through the meshing transmission between the second threaded rod 603 and the mounting plate 501 and the guiding effect of the square groove 602 on the mounting plate 501. During the process of the mounting plate 501 being subjected to force and moving, the push rod 107 and the push plate 106 are driven to move through the connecting plate 504, and the movement of the push plate 106 drives the rotating shaft to rotate, further driving the two steering wheels 102 to perform a steering test, and during the test, the fourth motors 903 on the two L-shaped plates 8 can be started respectively to respectively cause the two circular plates 10 and the U-shaped plate 12 to move upward. Or it moves downward to adjust the height difference of the steering wheels 102 on the two U-shaped plates 12 to form the third axis and the fourth axis mechanism in the detection process, which is convenient for the steering results of the two steering wheels 102 under different height conditions, and then the fifth motors 1102 on the two circular plates 10 are started respectively, and the two rotating rods 1101 are driven to rotate respectively through the transmission of the pulley 1103 and the belt 1104. Through the rotation of the two rotating rods 1101 respectively, the fourth axis and the fifth axis mechanism in the detection process are formed, which is convenient for simulating the steering results of the two steering wheels 102 under different resistance conditions. During the entire test process, the steering structure of the automobile steering mechanism under various conditions can be simulated to improve the diversity of steering tests.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A five-axis steering test device for intelligent connected vehicles, characterized in that: The invention comprises a vehicle steering mechanism and a test bench (2), wherein the steering mechanism comprises a mounting frame (101), two ends of the mounting frame (101) are rotatably connected to a rotating shaft, a steering wheel (102) is mounted on the rotating shaft, two transmission plates (103) are mounted on the two rotating shafts, one end of the two transmission plates (103) is rotatably connected to a first transmission rod (104) and a second transmission rod (105), the first transmission rod (104) is slidably connected to the second transmission rod (105), a push plate (106) is fixed on the rotating shaft, a push rod (107) is mounted on the push plate (106), and the The test bench (2) is mounted with a support platform (3), the support platform (3) being provided with a first limiting mechanism for limiting the position of the mounting frame (101) and a first axis mechanism for detecting the steering mechanism of the vehicle, the test bench (2) being connected with two L-shaped plates (8) via an adjustment mechanism, the two L-shaped plates (8) being connected with a circular plate (10) via a second axis mechanism and a third axis mechanism, respectively, the two circular plates (10) being connected with a U-shaped plate (12) via a fourth axis mechanism and a fifth axis mechanism, respectively, the two U-shaped plates (12) being provided with a second limiting mechanism for facilitating the limiting of the position of the steering wheel (102); The first limiting mechanism comprises a sliding groove (401) provided at the upper end of the support platform (3), the sliding groove (401) being provided with a T-shaped groove (402), the T-shaped groove (402) being slidably connected to two T-shaped plates (403) matching the T-shaped groove (402), the two T-shaped plates (403) being fixed with a clamping plate (404), the two T-shaped plates (403) being provided with a first threaded sleeve (405), the threads of the two first threaded sleeves (405) being arranged in opposite directions, a first double-headed screw rod (406) being rotatably connected to the T-shaped groove (402), the two first threaded sleeves (405) being respectively meshed with each other at two ends of the first double-headed screw rod (406), and a first motor (407) for driving the first double-headed screw rod (406) being provided on the support platform (3); The first shaft mechanism comprises a mounting plate (501), a driving mechanism for driving the mounting plate (501) is arranged on the support platform (3), a first threaded tube (502) is mounted on the mounting plate (501), a first threaded rod (503) is threadedly connected to the first threaded tube (502), a connecting plate (504) is rotatably connected to the first threaded rod (503), a sleeve (505) is mounted on the connecting plate (504), and the sleeve (505) is sleeved on one end of the push rod (107); The driving mechanism comprises a square plate (601) mounted on the support platform (3), the square plate (601) being provided with a square groove (602), the mounting plate (501) being slidably connected to the square groove (602), a second threaded rod (603) being rotatably connected to the square groove (602), the mounting plate (501) and the second threaded rod (603) being meshed with each other, and a second motor (604) for driving the second threaded rod (603) being mounted on the square plate (601); The adjustment mechanism comprises a fixing plate (701) fixed on both sides of the test bench (2), a plurality of first guide rods (702) and a second double-ended screw (703) are installed between the two fixing plates (701), a second threaded sleeve (704) is installed on the two L-shaped plates (8), the threads of the two second threaded sleeves (704) are arranged in opposite directions, the two second threaded sleeves (704) are respectively meshed with the two ends of the second double-ended screw (703), and a third motor (705) for driving the second double-ended screw (703) is installed on the fixing plate (701); The second limiting mechanism comprises sliding grooves (1301) provided on both sides of the U-shaped plate (12), the two sliding grooves (1301) being connected to extrusion plates (1302) via a connecting assembly, and the upper ends of the two extrusion plates (1302) being provided with inclined surfaces (1303); The connection assembly comprises two L-shaped operating plates (1304) fixed on the side walls of the U-shaped plate (12), round rods (1305) being slidably connected to the two L-shaped operating plates (1304), one end of the two round rods (1305) being fixed to one side of the extrusion plate (1302), and springs (1306) being sleeved on the side walls of the two round rods (1305).

2. The five-axis steering test device for an intelligent connected vehicle according to claim 1, characterized in that: The second axis mechanism and the third axis mechanism have the same structure. The second axis mechanism comprises a second threaded tube (901) rotatably connected to the L-shaped plate (8). A third threaded rod (902) is threadedly engaged with the second threaded tube (901). The other end of the third threaded rod (902) is fixed to the lower end of the circular plate (10). A plurality of sliding rods (904) and a fixed rod (905) are respectively installed on one side of each other between the L-shaped plate (8) and the circular plate (10). Each of the sliding rods (904) is slidably connected to each of the fixed rods (905). A fourth motor (903) for driving the second threaded tube (901) is installed on the L-shaped plate (8).

3. The five-axis steering test device for an intelligent connected vehicle according to claim 1, characterized in that: The fourth axis mechanism and the fifth axis mechanism have the same structure. The fourth axis mechanism comprises a rotating rod (1101) rotatably connected to the circular plate (10), one end of the rotating rod (1101) is fixed to the U-shaped plate (12), a fifth motor (1102) is installed on the circular plate (10), and pulleys (1103) are respectively fixed on the side walls of the fifth motor (1102) and the rotating rod (1101), and the two pulleys (1103) are driven by a belt (1104).

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