Vehicle Three-Dimensional Space Attitude Correction Device and Method

Abstract

The present invention discloses a vehicle three-dimensional space attitude correction device and method, which includes a load-bearing hub platform, a rotary correction device, and a front-wheel lifting device. The load-bearing hub platform is composed of a keel bearing bracket and a hollow iron plate combined by bolts. At the front end of the load-bearing hub platform, a set of concave roller groups for fixing the vehicle front wheels is carried by the keel bearing bracket, and multiple sets of flat roller groups are built at the rear end of the load-bearing hub platform. The rotary correction device includes a hollow rotation and a V-shaped slide rail, and the hollow rotation is connected to a rotary fastener. The rotary fastener is connected to a connecting rod and a concave slide rail to form a crank-slider mechanism. The V-shaped slide rail is connected to a side rolling bar through a trapezoidal connecting piece. The front-wheel lifting device includes an electric lifting platform and a concave hub device. The concave hub device includes a concave roller group, a variable roller group side fixer, and a roller group connection bearing piece. The concave roller group is fixed by the variable roller group side fixer, and the concave roller group is connected to the electric lifting platform through the roller group connection bearing piece. The present invention realizes simple, efficient, and rapid automatic centering of the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle detection, and in particular to a vehicle three-dimensional space attitude correction device and method. Background Art

[0002] The quality inspection before a vehicle leaves the factory is one of the important bases for determining whether the vehicle can smoothly enter the market, which will directly affect the economic benefits of the vehicle factory; however, before traditional inspection, the vehicle usually needs to be parked at a corresponding designated position. However, due to manual parking, there will be more or less deviations in the position of the vehicle. In the existing methods, infrared ranging is used, and the position of the vehicle is adjusted until it is consistent according to the distances from the four tires to the infrared sensors respectively. However, this method requires continuous adjustment of the vehicle, with cumbersome operations and low automation level, and is not suitable for mass vehicle inspection. Therefore, improving the speed and accuracy of vehicle position correction is of great significance for the efficiency of vehicle inspection and leaving the factory.

[0003] Currently, the most common method for vehicle detection and centering is to drive the vehicle manually into the detection platform and calibrate it through the wheels. For example, the vehicle position is corrected by guiding through grooves, and then the vehicle is continuously fine-tuned according to the position of the grooves. The automation level is low, time-consuming and laborious. Usually, two or three employees are required to cooperate. When mass inspection is carried out, the work intensity of the employees is extremely high, the human error increases, and the inspection efficiency decreases. Therefore, the emergence of a fast and simple vehicle three-dimensional space attitude correction device becomes particularly important.

[0004] There is also a method of matching the position of the vehicle corresponding to the detection platform by external measuring devices, such as infrared sensors, etc. When the distances from the infrared sensors to the four wheels are the same, it can be considered that the vehicle has been centered. However, this method has poor stability in actual application, limited application scenarios, is greatly restricted by the site, has high assembly accuracy, and each installation requires focus detection, level detection, etc. for the four infrared sensors to ensure that the sensors are opposite to each other and perpendicular to the ground. The cost of regular maintenance and replacement is high, and the degree of automation is low, with insufficient efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a vehicle three-dimensional space attitude correction device and method, and to provide a simple, efficient and fast automatic centering device for vehicle detection.

[0006] The technical solution adopted by the present invention is:

[0007] The vehicle's three-dimensional posture correction device includes a bearing hub platform, a rotation correction device, and a front wheel lifting device. The bearing hub platform is assembled by a keel bearing bracket and a hollow iron plate through bolts. The hollow iron plate remains hollow while ensuring strength for easy later maintenance. The front end of the bearing hub platform is equipped with a group of concave rollers through the keel bearing bracket. The concave rollers are used to fix the front wheels of the vehicle and position the vehicle. The rear end of the bearing hub platform is equipped with multiple groups of flat rollers. The multiple groups of flat rollers ensure that after the front wheels of the vehicle are positioned, the rear wheels of the vehicle are centered and corrected under the action of the clamping force.

[0008] The power transmission part of the rotation correction device is centered on the hollow rotation. The hollow rotation is connected to the rotation firmware to ensure that the left and right side rollers receive the same rotation force; the rotation firmware is connected to the connecting rod and the concave slide rail to form a rocker slider mechanism. The concave slide rail is connected to the triangular hook claw, and the rotation force of the hollow rotation is transmitted to the side rollers through the triangular hook claw. The side rollers are open at the front, middle and rear ends of the hub platform to facilitate the entry and exit of vehicles.

[0009] The correction part of the slewing correction device uses a V-shaped slide rail as a load-bearing component. The V-shaped slide rail is connected to the side roller through a ladder-shaped connector. The side roller is mounted on the ladder-shaped connector. The V-shaped slide rail plays the role of bearing and regulating the direction of movement of the side roller.

[0010] The front wheel lifting device includes an electric lifting platform and a concave hub device. The concave hub device includes a concave roller group, a variable roller group side fixer, and a roller group connecting bearing member. The concave roller group is fixed by the variable roller group side fixers on both sides, and the bottom of the concave roller group is connected to the electric lifting platform through the roller group connecting bearing member.

[0011] Furthermore, the concave roller group is arranged on the roller group connecting bearing member, and the lower end of the roller group connecting bearing member is connected to the electric lifting platform.

[0012] Furthermore, the concave roller group is equipped with a built-in pressure sensor to detect the entry of the vehicle.

[0013] Furthermore, cameras are provided on both sides of the concave roller group, and the cameras capture images of the vehicle's lifting state.

[0014] Furthermore, the heights of the two electric lifts are controlled by extracting the vehicle's feature points from the vehicle's lifted state image captured by the camera, which can effectively reduce measurement accuracy errors caused by different tire pressures.

[0015] Furthermore, the hollow rotary is connected to the rotary fastener via bolts.

[0016] Furthermore, the rotary fixture is connected to the connecting rod and the concave slide rail through a hinge.

[0017] Furthermore, the height of the side rollers is 1 / 4 of the wheel height, and the rollers on the rollers prevent the tires from being scratched when the vehicle is centered, thereby forming a tightening correction force.

[0018] A vehicle three-dimensional space posture correction method comprises the following steps:

[0019] S1, the human driver puts the vehicle into neutral gear and straightens the wheels;

[0020] S2, the vehicle first enters the load-bearing hub platform, and the wheel makes initial contact with the side roller opening;

[0021] S3: Control the vehicle to move forward slowly at an average speed, with the wheels clinging to the rollers on the side rollers, and gradually expand the rollers on both sides based on the forward momentum;

[0022] In S4, when the front wheel of the vehicle is stuck in the concave roller set and the rear wheel is located at the flat roller set, the side rollers convert the rotational force into a clamping force and transmit it to the front and rear wheels for centering;

[0023] S5: The pressure sensor built into the top of the roller group connection bearing member sends a signal, and the cameras on both sides capture the image of the vehicle's lifting status, and the height of the two electric lifts is controlled based on the vehicle's lifting status image;

[0024] S6: When the vehicle stops at the concave roller group and reaches the set stabilization time, the centering is completed and the vehicle continues to move forward and out of the carrying platform.

[0025] Furthermore, as a preferred embodiment, the heights of the two electric lifts are controlled according to the degree of extraction of the vehicle feature points in S5 to ensure that the camera extracts the clearest feature points.

[0026] Furthermore, as a preferred implementation, the stabilization time in S5 is set to 1 second.

[0027] The present invention adopts the above technical solution and utilizes a damper-link mechanism to automatically correct the vehicle's position during travel. The present invention utilizes a left and right propulsion device that uses only one rotating fixture to evenly distribute the rotational force to the left and right rollers, ensuring that the vehicle's centerline is aligned with the device's centerline. The present invention specifically designs a lifting device to ensure that the characteristic points of each vehicle are maintained on the same horizontal line and can be clearly captured by the camera. The present invention eliminates the need for external measuring equipment and instead uses a purely mechanical structure to create an efficient and precise device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments;

[0029] Figure 1 Schematic diagram of the structure of the vehicle three-dimensional posture correction device of the present invention;

[0030] Figure 2 Schematic structural diagram of the bearing platform of the vehicle three-dimensional space attitude correction device of the present invention;

[0031] Figure 3 Partial enlarged schematic diagram of the load keel structure of the vehicle three-dimensional space attitude correction device of the present invention;

[0032] Figure 4 Schematic structural diagram of the rotary correction device of the vehicle three-dimensional space attitude correction device of the present invention;

[0033] Figure 5 Schematic diagram of the V-groove bearing of the vehicle three-dimensional space attitude correction device of the present invention;

[0034] Figure 6 Schematic structural diagram of the front wheel lifting device of the vehicle three-dimensional space attitude correction device of the present invention.

[0035] Reference numerals: 1 is a hollow iron plate, 2 is a concave roller group, 3 is a flat roller group, 4 is a keel bearing bracket, 5 is a hollow rotation, 6 is a rotary fastener, 7 is a triangular hook claw, 8 is a concave slide rail, 9 is a side rolling strip, 10 is a connecting rod, 11 is a trapezoidal connecting piece, 12 is a V-shaped slide rail, 13 is an electric lifting platform, 14 is a pressure sensor, 15 is a variable roller group side fixer, 16 is a roller group connection bearing member. Embodiment

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0037] As Figures 1 to 6 As shown in one of them, the present invention discloses a vehicle three-dimensional space attitude correction device and method, which includes a bearing rotating hub platform, a rotary correction device, and a front wheel lifting device. The bearing rotating hub platform is composed of a keel bearing bracket 4 and a hollow iron plate 1 combined by bolts. The hollow iron plate 1 keeps hollow for later maintenance while ensuring strength. A set of concave roller groups 2 is carried by the keel bearing bracket 4 at the front end of the bearing rotating hub platform. The concave roller groups 2 are used to fix the front wheels of the vehicle and position the vehicle. Multiple sets of flat roller groups 3 are built at the rear end of the bearing rotating hub platform. After the front wheels of the vehicle are positioned, the rear wheels of the vehicle are centered and corrected under the action of the clamping force.

[0038] The power transmission part of the rotary correction device is centered around the hollow rotation 5. The hollow rotation 5 is connected to the rotary fastener 6 to ensure that the rotary forces received on the left and right side rolling bars 9 are the same. The rotary fastener 6 is connected to the connecting rod 10 and the concave slide rail 8 to form a crank-slider mechanism. The triangular hook claw 7 is connected to the concave slide rail 8, and the rotary force of the hollow rotation 5 is transmitted to the side rolling bar 9 through the triangular hook claw 7. The side rolling bar 9 is open at the front, middle, and rear ends of the bearing hub platform to facilitate the entry and exit of vehicles.

[0039] The correction part of the rotary correction device uses the V-shaped slide rail 12 as the bearing component. The V-shaped slide rail 12 is connected to the side rolling bar 9 through the trapezoidal connecting piece 11. The side rolling bar 9 is mounted on the trapezoidal connecting piece 11. The V-shaped slide rail 12 serves to bear and standardize the movement direction of the side rolling bar 9.

[0040] The front-wheel lifting device includes an electric lifting platform 13 and a concave hub device. The concave hub device includes a concave roller group 2, a variable roller group side fixer 15, and a roller group connection bearing member 16. The concave roller group 2 is fixed by the variable roller group side fixers 15 on both sides. The bottom of the concave roller group 2 is connected to the electric lifting platform 13 through the roller group connection bearing member 16.

[0041] Further, the concave roller group 2 is provided on the roller group connection bearing member 16, and the lower end of the roller group connection bearing member 16 is connected to the electric lifting platform 13.

[0042] Further, a pressure sensor 14 is built into the concave roller group 2 to detect the entry situation of the vehicle.

[0043] Further, cameras are provided on both sides of the concave roller group 2 to capture images of the lifting state of the vehicle.

[0044] Further, by controlling the height of the two electric lifting platforms 13 according to the degree of extraction of the vehicle feature points from the images of the lifting state of the vehicle captured by the cameras, the measurement accuracy error caused by different tire pressures can be effectively reduced.

[0045] Further, the hollow rotation 5 is connected to the rotary fastener 6 by bolts.

[0046] Further, the rotary fastener 6 is connected to the connecting rod 10 and the concave slide rail 8 by hinges.

[0047] Further, the height of the side rolling bar 9 is 1 / 4 of the wheel height. The rollers on the rolling bar prevent the tires from being scratched when the vehicle is centered, forming a tightening and correcting force.

[0048] The vehicle three-dimensional space attitude correction method includes the following steps:

[0049] S1, manually drive the vehicle to put it in neutral and straighten the wheels.

[0050] S2. When the vehicle first enters the loading and rotating drum platform, the wheels come into initial contact with the openings of the side rolling bars 9.

[0051] S3. Control the vehicle to move forward slowly at an average speed. The wheels closely adhere to the rollers on the side rolling bars 9, and based on the forward driving force, the two side rolling bars are gradually expanded.

[0052] S4. When the front wheels of the vehicle sink into the concave roller set 2, the rear wheels are located at the flat roller set 3. The rotary force is converted into a clamping force through the side rolling bars 9 and transmitted to the front and rear wheels for centering.

[0053] S5. The pressure sensors built into the top of the roller set connecting the bearing member 16 send signals. The cameras on both sides take images of the lifting state of the vehicle, and based on the vehicle lifting state images, control the heights of the two electric lifting platforms 13.

[0054] S6. When the vehicle stops at the concave roller set 2 for the set stable time to complete centering, continue to drive the vehicle out of the loading platform.

[0055] Furthermore, as a preferred embodiment, in S5, control the heights of the two electric lifting platforms 13 according to the extraction degree of the vehicle feature points to ensure that the cameras extract the clearest feature points.

[0056] Furthermore, as a preferred embodiment, the set stable time in S5 is 1 second.

[0057] The present invention adopts the above technical solutions and has the following advantages compared with the prior art: 1. Considering that multi-sensors have high requirements for the scene, the present invention abandons the sensors and cleverly adopts a pure mechanical structure, which has a simple structure, low requirements for the scene, and low maintenance costs. 2. The present invention replaces the hydraulic or electric power in the previous inventions with mechanical rotary force (spring force). The vehicle automatically completes centering during driving, with increased efficiency and is suitable for mass vehicle detection. 3. Considering the influence of vehicle tire pressure on the measurement accuracy, the present invention designs a set of lifting devices to eliminate the influence.

[0058] Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. Usually, the components of the embodiments of the present application described and illustrated in the drawings here can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present application is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

Claims

1. A three-dimensional spatial attitude correction device for a vehicle, characterized in that: It includes a load-carrying rotating hub platform, a rotary correction device, and a front-wheel lifting device. The load-carrying rotating hub platform is composed of a keel load-bearing bracket and a perforated iron plate combined by bolts. At the front end of the load-carrying rotating hub platform, a set of concave rollers is carried by the keel load-bearing bracket. The concave rollers are used to fix the front wheels of the vehicle and position the vehicle. At the rear end of the load-carrying rotating hub platform, multiple sets of flat rollers are built. The multiple sets of flat rollers ensure that after the front wheels of the vehicle are positioned, the rear wheels of the vehicle are centered and corrected under the action of the clamping force. The power transmission part of the rotary correction device is centered on a hollow rotation. The hollow rotation is connected to the rotary fastener to ensure that the rotary forces received on the left and right side rolling bars are the same. The rotary fastener is connected to the connecting rod and the concave slide rail to form a crank-slider mechanism. A triangular hook claw is connected to the concave slide rail, and the rotary force of the hollow rotation is transmitted to the side rolling bar through the triangular hook claw. The side rolling bars are open at the front, middle, and rear ends of the load-carrying rotating hub platform to facilitate the entry and exit of the vehicle. The correction part of the rotary correction device uses a V-shaped slide rail as the load-bearing component. The V-shaped slide rail is connected to the side rolling bar through a trapezoidal connecting piece. The side rolling bar is carried on the trapezoidal connecting piece. The V-shaped slide rail plays the role of bearing and standardizing the moving direction of the side rolling bar. The front-wheel lifting device includes an electric lifting platform and a concave rotating hub device. The concave rotating hub device includes a concave roller set, a variable roller set side fixer, and a roller set connection bearing member. The concave roller set is fixed by the variable roller set side fixers on both sides. The bottom of the concave roller set is connected to the electric lifting platform through the roller set connection bearing member. Among them, cameras are provided on both sides of the concave roller set. The cameras capture images of the lifting state of the vehicle. The heights of the two electric lifting platforms are controlled according to the degree of extraction of the vehicle feature points from the captured images of the lifting state of the vehicle, reducing the measurement accuracy error caused by different tire pressures. The height of the side rolling bar is 1 / 4 of the wheel height. The rollers on the rolling bar prevent the tires from being scratched during centering, forming a clamping and correcting force.

2. The vehicle three-dimensional space attitude correction device according to claim 1, characterized in that: The concave roller set is arranged on the roller set connection bearing member, and the lower end of the roller set connection bearing member is connected to the electric lifting platform.

3. The vehicle three-dimensional space attitude correction device according to claim 1, wherein: A pressure sensor is built in the concave roller set to detect the entry situation of the vehicle.

4. The vehicle three-dimensional space attitude correction device according to claim 1, characterized in that: The hollow rotation is connected to the rotary fastener by bolts; the rotary fastener is connected to the connecting rod and the concave slide rail through hinges.

5. A method for correcting the three-dimensional spatial attitude of a vehicle, using the vehicle three-dimensional spatial attitude correction device according to any one of claims 1 to 4, characterized in that: The method includes the following steps: S1, Manually drive the vehicle to put it in neutral gear and straighten the wheels. S2, When the vehicle first enters the load-carrying rotating hub platform, the wheels initially contact the opening of the side rolling bar. S3, Control the vehicle to slowly move forward at an average speed. The wheels are close to the rollers on the side rolling bar, and the two side rolling bars are gradually pushed open based on the forward power. S4, When the front wheels of the vehicle fall into the concave roller set and the rear wheels are at the flat roller set, the rotary force is converted into a clamping force through the side rolling bar and transmitted to the front and rear wheels for centering. S5, The pressure sensor built in the top of the roller set connection bearing member sends a signal. The cameras on both sides capture images of the lifting state of the vehicle, and the heights of the two electric lifting platforms are controlled based on the images of the lifting state of the vehicle. S6, When the vehicle stops at the concave roller set for the set stable time to complete centering, continue to drive the vehicle forward and drive out of the load-bearing platform.

6. The vehicle three-dimensional space attitude correction method according to claim 5, wherein: In S5, the heights of the two electric lifting platforms are controlled according to the degree of extraction of the vehicle feature points to ensure that the cameras extract the clearest feature points.

7. The vehicle three-dimensional space attitude correction method according to claim 5, wherein: Set the stabilization time to 1 second in S5.

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