A vehicle automatic positioning centering device

Abstract

The application discloses a kind of vehicle automatic positioning centering device, it is related to vehicle detection field, including bearing platform, centering mechanism, mounting plate and pressure roller, the mounting plate is installed with the ball corresponding with pressure roller, and ball will support pressure roller, and pressure roller end portion pivot is connected with bearing seat, the mounting plate outer wall is equipped with the installation groove corresponding with bearing seat.The application is provided with ball and protective pad, under the action of ball, so that the gravity of the equipment is supported by ball when using pressure roller, effectively reduce the damage of the shaft of pressure roller when using, so that the deformation accident of the shaft of pressure roller when using is effectively reduced due to long time pressure, simultaneously under the action of protective pad, it will further protect the outer wall of pressure roller, so as to reduce its wear when using, and unscrewed bolt can also directly replace protective pad, so that the subsequent maintenance of protective pad is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle detection, in particular to a vehicle automatic positioning centering device. BACKGROUND

[0002] In order to ensure the safety of the user during the subsequent use of the vehicle after the completion of the vehicle manufacturing and before the delivery of the vehicle, the vehicle needs to be detected. Before the vehicle is prepared for detection, the vehicle needs to be parked at a specified position of the detection platform to start the detection.

[0003] In order to ensure the accuracy during the detection of the vehicle, a centering positioning device needs to be used during the detection of the vehicle. For example, the vehicle detection centering positioning equipment disclosed in patent No. CN213632676U. The bearing platform of the equipment is used to bear the vehicle. The first centering mechanism and the second centering structure are assembled on the bearing platform and correspond to the front wheel and rear wheel positions of the vehicle respectively, and are used to center and position the vehicle. The first centering mechanism includes two first pushing assemblies, which are respectively used to push the two front wheels. Specifically, the first driving unit included in each first pushing assembly is used to drive the first pushing unit to move to push the front wheel. The second centering mechanism includes a second pushing assembly, which is respectively used to push the two rear wheels. Specifically, the second driving unit included in the second pushing assembly is used to drive the second pushing unit to move to push the rear wheel. In this way, during the pushing process, when the center line of the vehicle and the center line of the platform coincide, the rapid centering and positioning of the vehicle on the bearing platform is completed. The positioning efficiency is fast, the manpower is saved, and the accuracy is high.

[0004] However, the above-mentioned vehicle detection centering positioning equipment still has some problems in actual use. For example, the support of the flat roller group of the equipment is a rotating shaft. At the same time, the overall weight of the vehicle during detection is supported by the flat roller group, so that the rotating shaft is easily deformed due to long-term pressure after long-term use of the equipment. Once the rotating shaft is deformed, the roller group operation will be problematic. In order to ensure the normal operation of the equipment, the staff needs to frequently detect the roller group. Once the damage is found, the staff needs to remove the damaged roller and rotating shaft together. SUMMARY

[0005] Based on this, the purpose of the present application is to provide a vehicle automatic positioning centering device to solve the technical problems mentioned in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a vehicle automatic positioning centering device, comprising a bearing platform, a centering mechanism, a mounting plate and a pressure bearing roller, the mounting plate is internally mounted with a ball bearing corresponding to the pressure bearing roller, the ball bearing supports the pressure bearing roller, and the end of the pressure bearing roller is connected with a bearing seat, the outer wall of the mounting plate is provided with a mounting groove corresponding to the bearing seat, and a fixed block corresponding to the bearing seat is slidably mounted in the mounting groove.

[0007] By adopting the above technical scheme, under the action of the balls, the gravity of the pressure roller during use is supported by the balls, effectively reducing the damage of the shaft of the pressure roller during use, thereby effectively reducing the deformation of the shaft of the pressure roller due to long-term pressure, and under the action of the fixing block, when the pressure roller needs to be removed, the fixing block is only opened, and the pressure roller can be removed, so that the replacement of the pressure roller is very convenient.

[0008] The application further provides that the pressure roller is provided with an open slot at both ends, and the distance between the two inner walls of the open slot is greater than 20 mm.

[0009] By adopting the above technical scheme, under the action of the open slot, the pressure roller can be conveniently removed.

[0010] The application further provides that the outer wall of the pressure roller is provided with a protective pad, and the protective pad is installed on the pressure roller through bolts at both ends, and the outer ends of the bolts are located inside the protective pad.

[0011] By adopting the above technical scheme, under the action of the protective pad, the friction loss of the pressure roller during use is effectively reduced, the service life of the pressure roller is greatly prolonged, and the protective pad is very convenient to replace and more convenient to use.

[0012] The application further provides that the inner wall of the protective pad is uniformly provided with a plurality of limiting blocks, the limiting blocks are designed of rubber material, the limiting blocks are designed of spherical structure, and the outer wall of the pressure roller is provided with a groove corresponding to the fixing block.

[0013] By adopting the above technical scheme, under the action of the groove and the limiting block, the connection between the protective pad and the pressure roller is further fixed, thereby effectively improving the stability of the position of the protective pad during use.

[0014] The application further provides that the bearing seat is designed of a rectangular box body, two groups of fixing blocks are symmetrically installed in the installation groove, and a fixing spring corresponding to the fixing block is installed in the installation groove.

[0015] By adopting the above technical scheme, under the action of the fixing block and the installation groove, the position of the bearing seat is fixed, and under the action of the fixing spring, the resetting work of the fixing block after movement is ensured.

[0016] The application further provides that the end of the fixing block is designed of an inclined surface, a push block is installed on the outer wall of the fixing block, and the end of the push block and the installation plate are located on the same plane.

[0017] Through the adoption of the above technical scheme, under the action of the fixing block inclined surface, the installation of the pressure roller is facilitated, and under the action of the shifting block, the single pressure roller is facilitated to be disassembled.

[0018] The application further provides that the installation slot is provided with a limiting telescopic rod, the end of the limiting telescopic rod abuts against the bearing seat, and a limiting spring is installed on the limiting telescopic rod.

[0019] Through the adoption of the above technical scheme, under the action of the limiting telescopic rod and the limiting spring, the end of the bearing seat is pushed upward after losing the limitation of the fixing block, so that the pressure roller is facilitated to be removed by the worker.

[0020] The application further provides that the installation plate is slidably provided with a transmission rod connected with the fixing block, the installation plate is provided with a limiting rod corresponding to the transmission rod, and the end of the transmission rod is provided with a sawtooth plate.

[0021] Through the adoption of the above technical scheme, under the action of the transmission rod and the limiting rod, the sawtooth plate is synchronously slid when the fixing block slides.

[0022] The application further provides that the installation plate is rotatably provided with a transmission gear corresponding to the sawtooth plate, one transmission gear is provided for two sawtooth plates, and the sawtooth plates are staggered.

[0023] Through the adoption of the above technical scheme, under the action of the transmission gear, the single fixing block is synchronously slid when the other fixing block slides.

[0024] The application further provides that the installation plate is slidably provided with a transmission rod, a plurality of sliding blocks are movably installed on the outer wall of the transmission rod, and the bottom of the sawtooth plate is provided with a stress slot corresponding to the sliding block.

[0025] Through the adoption of the above technical scheme, under the action of the transmission rod, the sliding block and the stress slot, the transmission rod drives a plurality of sawtooth plates to synchronously move when the transmission rod slides, so that a plurality of bearing seats are simultaneously lost of limitation when the transmission rod slides, thereby facilitating the disassembly of the plurality of pressure rollers.

[0026] In summary, the application has the following beneficial effects:

[0027] The application is provided with the ball and the protective pad, under the action of the ball, the gravity of the pressure roller during use is supported by the ball, effectively reducing the damage of the shaft of the pressure roller during use, effectively reducing the deformation of the shaft of the pressure roller due to long-term pressure, and under the action of the protective pad, the outer wall of the pressure roller is further protected, thereby reducing the wear during use, and the protective pad can be directly replaced after the bolt is unscrewed, facilitating the subsequent maintenance of the protective pad.

[0028] The present application sets the fixed block, the limit spring and the open slot, under the action of the fixed block and the limit spring, the limit spring will push the bearing seat upward after the fixed block is opened, so that the area of the open slot is increased, so that the staff puts the hand into the open slot or the equipment such as the mechanical pull claw is taken down the pressure roller is put into the open slot, and the pressure roller is conveniently taken down for maintenance.

[0029] The present application sets the sawtooth plate and the sliding block, under the action of the sawtooth plate and the sliding block, after the electric push rod is started, a plurality of sawtooth plates are pulled through the sliding block, so that a plurality of fixed blocks are opened at the same time, and the staff takes down all the pressure rollers to clean the inside of the mounting plate. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0031] Figure 2 It is a schematic diagram of the mounting plate of the present application;

[0032] Figure 3 It is a schematic diagram of the mounting plate of the present application; Figure 2 It is a schematic diagram of the mounting plate of the present application;

[0033] Figure 4 It is a schematic diagram of the mounting plate of the present application;

[0034] Figure 5 It is a schematic diagram of the mounting plate of the present application; Figure 4 It is a schematic diagram of the mounting plate of the present application;

[0035] Figure 6 It is a schematic diagram of the mounting slot of the present application;

[0036] Figure 7 It is a schematic diagram of the mounting slot of the present application; Figure 6 It is a schematic diagram of the mounting slot of the present application.

[0037] In the figure: 1, bearing platform; 2, centering mechanism; 3, mounting plate; 4, pressure roller; 41, open slot; 5, ball; 6, protective pad; 7, bolt; 8, limit block; 9, bearing seat; 10, mounting slot; 11, fixed block; 12, push block; 13, fixed spring; 14, limit telescopic rod; 15, limit spring; 16, transmission rod; 17, limit rod; 18, sawtooth plate; 19, transmission gear; 20, electric push rod; 21, transmission rod; 22, pressure spring; 23, sliding block; 24, force slot. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0039] The embodiments of the present application will be described below according to the overall structure of the present application.

[0040] A vehicle automatic positioning centering device, as shown in FIGS. 1-7, comprises a bearing platform 1, a centering mechanism 2, a mounting plate 3 and a pressure roller 4.

[0041] Specifically, the mounting plate 3 is provided with a ball 5 corresponding to the pressure roller 4, and the ball 5 supports the pressure roller 4, so that when the pressure roller 4 rotates, the ball 5 supports it, so that the actual weighing assembly of the vehicle is the pressure roller 4 and the ball 5, effectively reducing the damage to the rotating shaft of the pressure roller 4 during use, thereby effectively reducing the possibility of deformation of the rotating shaft of the pressure roller 4 due to long-term pressure during use, and the end of the pressure roller 4 is connected with a bearing seat 9, and the outer wall of the mounting plate 3 is provided with a mounting groove 10 corresponding to the bearing seat 9, and the bearing of the pressure roller 4 and the bearing seat 9 play a limiting role on the pressure roller 4 under the action of the mounting groove 10, and the bearing and the bearing seat 9 do not support the pressure roller 4 at this point, thereby effectively reducing the use loss of the equipment, and the mounting groove 10 is slidably provided with a fixed block 11 corresponding to the bearing seat 9, and the position of the bearing seat 9 in the mounting groove 10 is fixed under the cooperation of the fixed block 11 and the mounting groove 10, thereby ensuring the positional fixity of the pressure roller 4 during use.

[0042] Please refer to Figure 4 In the above embodiment, the pressure roller 4 is provided with an open groove 41 at both ends, and the distance between the two inner walls of the open groove 41 is greater than 20 mm, so that the open groove 41 is sufficient for the worker to put his fingers in to hold the open groove 41, and the worker can put his hand into the open groove 41 or put the equipment for taking down the pressure roller 4 into the open groove 41, and then pull the open groove 41 upwards, thereby facilitating the removal of the pressure roller 4.

[0043] Please refer to Figures 2-4 In the above embodiment, the outer wall of the pressure roller 4 is provided with a protective pad 6, which is designed of wear-resistant material, so that the protective pad 6 protects the pressure roller 4 during rotation, effectively reducing the friction loss of the pressure roller 4 during use, greatly prolonging the service life of the pressure roller 4, and the protective pad 6 is installed on the pressure roller 4 by bolts 7 at both ends, so that the protective pad 6 can be replaced by unscrewing the bolts 7, making the replacement of the protective pad 6 convenient, and the outer end of the bolt 7 is located inside the protective pad 6, thereby effectively reducing the probability of damage to the wheel caused by the bolt 7 during use of the equipment, ensuring the safety of the equipment during use.

[0044] Please refer to Figures 2-3 In the above embodiment, the inner wall of the protective pad 6 is uniformly provided with a plurality of limiting blocks 8. During the installation of the protective pad 6, the limiting blocks 8 can pre-fix the protective pad 6. The limiting blocks 8 are designed of rubber material, so that the limiting blocks 8 are convenient to disassemble. The limiting blocks 8 are designed of spherical structure, and the outer wall of the pressure roller 4 is provided with grooves corresponding to the limiting blocks 8. The grooves and the limiting blocks 8 cooperate to further fix the connection between the protective pad 6 and the pressure roller 4, effectively improving the stability of the position of the protective pad 6 in use.

[0045] Please refer to Figures 4-6 In the above embodiment, the bearing seat 9 is designed of a rectangular box body, so that the installation groove 10 can fix the bearing seat 9. Two groups of fixing blocks 11 are symmetrically installed in the installation groove 10. The two groups of fixing blocks 11 limit the bearing seat 9 to ensure the positional fixity of the bearing seat 9 in use. The installation groove 10 is provided with fixing springs 13 corresponding to the fixing blocks 11. After the fixing blocks 11 lose the extrusion force, the fixing springs 13 push the fixing blocks 11 back to the original position, ensuring the resetting of the fixing blocks 11. Since the fixing blocks 11 are slidingly installed in the installation plate 3, when the pressure roller 4 needs to be disassembled, the fixing blocks 11 only need to be opened, and then the pressure roller 4 can be taken down, so that the replacement of the pressure roller 4 is very convenient.

[0046] Please refer to Figures 5-6 In the above embodiment, the end of the fixing block 11 is designed of an inclined surface. When the pressure roller 4 is installed, the bearing seat 9 extrudes the inclined surface of the end of the fixing block 11, so that the fixing block 11 slides to the direction of the fixing spring 13, ensuring that the bearing seat 9 can smoothly enter the installation groove 10, thereby facilitating the installation of the pressure roller 4. The outer wall of the fixing block 11 is provided with a push block 12. When a single pressure roller 4 needs to be disassembled, the corresponding push block 12 can be pushed to disassemble the pressure roller 4, so that the equipment can disassemble the pressure roller 4 individually. The end of the push block 12 is located in the same plane as the installation plate 3, preventing the push block 12 from contacting the wheel and damaging the wheel.

[0047] Please refer to Figures 5-6 In the above embodiment, a limiting telescopic rod 14 is installed in the installation groove 10. The end of the limiting telescopic rod 14 abuts against the bearing seat 9. A limiting spring 15 is installed on the limiting telescopic rod 14. When the end of the bearing seat 9 loses the limitation of the fixing block 11, the limiting telescopic rod 14 pushes the bearing seat 9 upward under the action of the limiting spring 15, so that the area of the opening slot 41 increases, facilitating the taking down of the pressure roller 4 by the staff.

[0048] Please refer to Figure 6In the above embodiment, the conducting rod 16 connected with the fixed block 11 is slidingly installed in the mounting plate 3, so that the fixed block 11 drives the conducting rod 16 to move synchronously when sliding, and the limiting rod 17 corresponding to the conducting rod 16 is installed in the mounting plate 3, so that the limiting rod 17 limits the conducting rod 16 when sliding, ensuring the stability of the position of the conducting rod 16 when sliding, and the sawtooth plate 18 is installed at the end of the conducting rod 16, so that the sawtooth plate 18 slides synchronously when the fixed block 11 slides.

[0049] Please refer to Figures 5-6 In the above embodiment, the transmission gear 19 corresponding to the sawtooth plate 18 is rotatably installed in the mounting plate 3, so that the single sawtooth plate 18 drives the other sawtooth plate 18 to move synchronously under the action of the transmission gear 19 when sliding, and the movement directions of the two sawtooth plates 18 are opposite, so that the single fixed block 11 drives the other fixed block 11 to slide synchronously, and the two sawtooth plates 18 are provided with a transmission gear 19, and the sawtooth plates 18 are installed staggered, ensuring that the sawtooth plates 18 do not collide when running.

[0050] Please refer to Figures 6-7 In the above embodiment, the transmission rod 21 is slidingly installed in the mounting plate 3, and a plurality of sliding blocks 23 are movably installed on the outer wall of the transmission rod 21, so that the plurality of sliding blocks 23 are driven by the transmission rod 21 to move synchronously when the transmission rod 21 slides, and the stress grooves 24 corresponding to the sliding blocks 23 are formed in the bottom of the sawtooth plate 18, so that the sliding blocks 23 drive the sawtooth plate 18 to move through the stress grooves 24, and then the plurality of sawtooth plates 18 are driven by the transmission rod 21 to move synchronously when the transmission rod 21 slides, so that the plurality of bearing seats 9 are simultaneously released from the limitation when the transmission rod 21 slides, thereby facilitating the disassembly of the plurality of pressure rollers 4.

[0051] Please refer to Figures 6-7 In the above embodiment, the electric push rod 20 corresponding to the transmission rod 21 is installed in the mounting plate 3, and the position of the transmission rod 21 is controlled by starting the electric push rod 20, and the pressure springs 22 corresponding to the sliding blocks 23 are installed in the transmission rod 21, so that the sliding blocks 23 are pushed into the stress grooves 24 by the pressure springs 22 when coinciding with the stress grooves 24, thereby ensuring that the transmission rod 21 drives the sawtooth plate 18 to move, and the end of the sliding block 23 is designed to be inclined, so that the sliding block 23 is separated from the stress groove 24 when the transmission rod 21 reversely slides, preventing the sliding block 23 from affecting the subsequent disassembly of the single pressure roller 4.

[0052] The working principle of the present application is that when the device is needed to be used to center the vehicle, the centering mechanism 2 will center the vehicle, at this time the wheels of the vehicle will rub on the pressure roller 4, so that the pressure roller 4 starts to rotate, and the ball 5 will support it when the pressure roller 4 rotates, so that the actual weighing assembly of the vehicle is the pressure roller 4 and the ball 5, and the bearing and bearing seat 9 of the pressure roller 4 only play a limiting role here, and the protective pad 6 will protect the outer wall of the pressure roller 4.

[0053] When the protective pad 6 needs to be replaced after long-term use of the device, the worker unscrews the bolt 7 at one end of the protective pad 6, then pulls the end of the protective pad 6, at this time the other end of the protective pad 6 is in a fixed state, so that the pressure roller 4 starts to rotate, so that the protective pad 6 drives the limiting block 8 to gradually separate from the pressure roller 4, and after the pressure roller 4 rotates one circle, the bolt 7 at the other end of the protective pad 6 is unscrewed, and then the new protective pad 6 is installed on the pressure roller 4 through the bolt 7 at one end, and the pressure roller 4 is rotated, so that the protective pad 6 is wrapped on the pressure roller 4, and at the same time the outer wall of the protective pad 6 will contact with the protective pad 6 on the outer wall of the other pressure roller 4 in the process of rotating the pressure roller 4, so that the limiting block 8 is pressed into the groove, and then the other group of bolts 7 is tightened to complete the replacement of the protective pad 6.

[0054] When the device is used for a long time, a large amount of dust, debris and other foreign matter in the installation plate 3 needs to be cleaned, first start the electric push rod 20, which will pull the transmission rod 21, so that the transmission rod 21 drives the sliding block 23 to slide, until the sliding block 23 coincides with the stress slot 24, at this time the compressed spring 22 will push the sliding block 23 into the stress slot 24, and at this time the electric push rod 20 is still in the starting, so that the transmission rod 21 will pull the sawtooth plate 18 to start moving through the sliding block 23 and the stress slot 24, so that the two sawtooth plates 18 slide to both sides under the action of the transmission gear 19 and the sliding block 23, and the sawtooth plate 18 will drive the fixed block 11 to move synchronously through the transmission rod 16, so that the fixed block 11 extrudes the fixed spring 13, so that the end of the plurality of fixed blocks 11 is separated from the bearing seat 9 synchronously, so that the bearing seat 9 loses the limitation, at this time the bearing seat 9 will slide up under the action of the limiting telescopic rod 14 and the limiting spring 15, so that the bearing seat 9 drives the pressure roller 4 to move upward, so that the area of the opening slot 41 increases, the worker can put his hand into the opening slot 41 or put the equipment such as mechanical pull claw to take off the pressure roller 4 into the opening slot 41 and pull the opening slot 41 upward, so that the pressure roller 4 is taken out, that is, the inside of the installation plate 3 can be cleaned, then the electric push rod 20 is started in reverse, so that the transmission rod 21 drives the sliding block 23 to move in the opposite direction, at the same time the fixed spring 13 pushes the fixed block 11 to the original position, so that the transmission rod 16 and the sawtooth plate 18 slide to the original position under the action of the sliding block 23 and the fixed block 11, when the transmission rod 16 returns to the original position, the position of the sawtooth plate 18 and the fixed block 11 will not move at this time, and at this time the electric push rod 20 is still running, so that the inclined surface of the sliding block 23 is extruded with the inner wall of the stress slot 24, so that the sliding block 23 slides to the compressed spring 22, so that the sliding block 23 is separated from the stress slot 24, so that when the single pressure roller 4 needs to be removed, the corresponding knob 12 can be rotated to remove the pressure roller 4.

[0055] When the pressure roller 4 needs to be installed, the bearing seat 9 on both sides of the pressure roller 4 is put into the installation slot 10, and then the pressure roller 4 is pressed downward, so that the bearing seat 9 extrudes the inclined surface of the end of the fixed block 11, so that the fixed block 11 slides to the fixed spring 13, then the bearing seat 9 extrudes the limiting telescopic rod 14, so that the limiting spring 15 is extruded, until the bearing seat 9 completely passes through the fixed block 11, at this time the fixed spring 13 pushes the fixed block 11 back to the original position, so that the bearing seat 9 is fixed under the cooperation of the installation slot 10 and the fixed block 11, that is, the installation of the pressure roller 4 is completed.

[0056] Although the embodiments of the present application have been shown and described, the specific embodiments are merely exemplary and are not to be construed as limiting the present application, and the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations to the embodiments without creative contribution after reading the specification, and as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A vehicle automatic positioning and centering device, comprising a carrying platform (1), a centering mechanism (2), a mounting plate (3) and a pressure roller (4), characterized in that: A ball (5) corresponding to the pressure roller (4) is installed in the mounting plate (3), and the ball (5) supports the pressure roller (4), and the end shaft of the pressure roller (4) is connected to the bearing seat (9), and the outer wall of the mounting plate (3) is provided with a mounting groove (10) corresponding to the bearing seat (9), and a fixing block (11) corresponding to the bearing seat (9) is slidably installed in the mounting groove (10); A transmission rod (16) connected to the fixed block (11) is slidably installed in the mounting plate (3), and a limit rod (17) corresponding to the transmission rod (16) is installed in the mounting plate (3), and a sawtooth plate (18) is installed at the end of each transmission rod (16); a transmission gear (19) corresponding to the sawtooth plate (18) is rotatably installed in the mounting plate (3), and two sawtooth plates (18) are equipped with a transmission gear (19), and the sawtooth plates (18) are staggered. A transmission rod (21) is slidably installed in the mounting plate (3), and a plurality of groups of sliders (23) are movably installed on the outer wall of the transmission rod (21), and a force groove (24) corresponding to the slider (23) is opened at the bottom of the sawtooth plate (18).

2. The vehicle automatic positioning and centering device according to claim 1, characterized in that: Open grooves (41) are provided at both ends of the pressure roller (4), and the distance between the two inner walls of the open groove (41) is greater than 20 mm.

3. The vehicle automatic positioning and centering device according to claim 1, characterized in that: The outer wall of the pressure roller (4) is provided with a protective pad (6), and both ends of the protective pad (6) are mounted on the pressure roller (4) via bolts (7), and the outer ends of the bolts (7) are located inside the protective pad (6).

4. The vehicle automatic positioning and centering device according to claim 3, characterized in that: The inner wall of the protective pad (6) is evenly installed with multiple groups of limit blocks (8), and the limit blocks (8) are designed with a rubber material and a spherical structure. The outer wall of the pressure roller (4) is provided with grooves corresponding to the limit blocks (8).

5. The vehicle automatic positioning and centering device according to claim 1, characterized in that: The bearing seat (9) is designed as a rectangular box, and two groups of fixing blocks (11) are symmetrically installed in the installation groove (10), and fixing springs (13) corresponding to the fixing blocks (11) are installed in the installation groove (10).

6. The vehicle automatic positioning and centering device according to claim 1, characterized in that: The end of the fixed block (11) is designed to be inclined, and a shift block (12) is installed on the outer wall of the fixed block (11), and the end of the shift block (12) and the mounting plate (3) are located on the same plane.

7. The vehicle automatic positioning and centering device according to claim 1, characterized in that: A limiting telescopic rod (14) is installed in the installation groove (10), and the end of the limiting telescopic rod (14) is in conflict with the bearing seat (9), and a limiting spring (15) is installed on the limiting telescopic rod (14).

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