CN115307881A - A vehicle correction device and process for a motor vehicle inspection line - Google Patents

Abstract

The invention belongs to the technical field of motor vehicle detection, and in particular relates to a vehicle correction device and process for a motor vehicle detection line. The invention limits the positions of the front wheels of vehicles with different widths through the cooperation of two inclined plates, so as to ensure that the front of the vehicle and the The front wheels are in the same direction, that is, the front of the car is facing the light blocking wall, thereby ensuring the accuracy of light detection. The invention cleans the stains adhering to the front wheel through the preliminary correcting mechanism, so that the driver only needs to keep the steering wheel forward to the vertical plate to avoid the situation that the front wheel is obliquely pressing over the vertical plate, thereby ensuring the lowering of the front wheel. The number of vertical plates is the same as the width of the front wheel.

Description

A vehicle straightening device and process for a motor vehicle inspection line

technical field

The invention belongs to the technical field of motor vehicle detection, and in particular relates to a vehicle straightening device and process for a motor vehicle detection line.

Background technique

The motor vehicle inspection line is an automatic assembly line that uses modern optical, electromechanical and computer measurement and control technologies to detect the safety, environmental protection and other performances of road driving motor vehicles. The motor vehicle inspection line includes exhaust inspection, lighting inspection, body color inspection, braking performance inspection and vehicle accessories inspection and other inspection items.

Among them, when performing light detection on a motor vehicle, the motor vehicle needs to be stationary at a predetermined detection position, then the headlights are turned on, and a light blocking wall is set at a certain distance from the front of the vehicle. The detection equipment on the motor vehicle detection line blocks the light through remote sensing. The light intensity on the wall can detect the light performance of the motor vehicle. In the process of actual operation, the vehicle is controlled by the driver to drive to the designated detection position. However, due to the differences in driving skills of different drivers, it is difficult to ensure that each driver can put the vehicle in the right position. The direction of the front of some vehicles during detection The perpendicularity to the light-blocking wall cannot be guaranteed, so that the light emitted by the car lights cannot be irradiated vertically on the light-blocking wall, which will affect the accuracy of light detection.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a vehicle straightening device for motor vehicle detection lines, including a mounting base, the mounting base is installed underground and the upper surface of the mounting base is flush with the ground, and the upper surface of the mounting base is vertical Two elevating rods are slidingly installed, and inclined plates are fixedly installed on the top of the elevating rods, and the two inclined plates are symmetrically arranged and the distance between the bottom ends of the two inclined plates is smaller than the distance between the top ends of the two inclined plates; the installation The upper surface of the seat corresponds to the position of each inclined plate with a receiving groove that allows the inclined plate to enter. There is a cavity inside the mounting seat. The bottom end of the lifting rod extends into the cavity, and the bottom ends of the two lifting rods are fixedly connected. There is a horizontal lifting plate, and several telescopic springs are fixed vertically on the bottom of the cavity, and the top of the telescopic spring is fixedly connected to the lifting plate; an oil storage tank is fixedly installed on the top of the cavity, and the inside of the oil storage tank is filled with hydraulic oil. A sealing plate is vertically slidably installed, and a piston rod is vertically fixedly installed on the bottom surface of the sealing plate, and the bottom end of the piston rod is fixedly connected to the lifting plate.

The upper surface of the mounting seat is located at the position in front of the receiving tank, and several vertical plates are installed, and the several vertical plates are evenly arranged along the left and right directions. Sliding fit vertical groove, a return spring is fixedly connected between the bottom surface of the vertical groove and the vertical plate; an oil chamber is opened inside the mounting seat, and a through groove connecting the oil chamber is opened on the bottom surface of the vertical groove; the inside of the mounting seat is fixedly installed with The oil pipe that communicates with the oil chamber and the oil storage tank; a rotating shaft is installed in the oil pipe, and a sealing sheet is fixedly installed on the rotating shaft. The sealing sheet can control the on-off of the oil pipe, and a control mechanism for controlling the rotating shaft is installed on the mounting seat.

As a preferred technical solution of the present invention, several horizontal rotating rollers are uniformly installed on the upper surface of the inclined plate from top to bottom.

As a preferred technical solution of the present invention, the top surface of the vertical plate is arc-shaped, and the intersection of the top surface of the vertical plate and the side wall of the vertical plate is flush with the upper surface of the mounting seat.

As a preferred technical solution of the present invention, a rubber strip for sealing is fixedly installed at the edge of the bottom surface of the vertical plate, and the rubber strip is closely attached to the inner wall of the vertical groove.

As a preferred technical solution of the present invention, there are several oil pipes, the control mechanism includes a gear fixedly installed on the rotating shaft, a control groove is opened on the top surface of the mounting seat, and a control gear meshed with the gear is installed horizontally slidingly in the control groove. The tooth rack is fixedly installed with two control cylinders in the control groove, and the telescopic section ends of the two control cylinders are respectively fixedly connected with the two ends of the control tooth bar.

As a preferred technical solution of the present invention, the mounting base is provided with a preliminary correction mechanism at a position in front of several vertical plates, and the preliminary correction mechanism includes two horizontal shafts that are rotatably mounted on the mounting base. The vertical plane and the horizontal axis are perpendicular to each other; each horizontal axis is fixedly installed with a straightening roller coincident with its axis, and a straightening motor for driving the horizontal shaft to rotate is fixedly installed on the mounting base.

As a preferred technical solution of the present invention, the surface of the straightening roller is evenly provided with several bar-shaped grooves along its circumference; a cleaning shaft parallel to the horizontal axis is installed on the mounting base, and the cleaning shaft is located in the middle of the two straightening rollers. The position below; the cleaning motor used to drive the cleaning shaft to rotate is fixedly installed on the mounting base; the cross-section of the cleaning shaft is cross-shaped and the movable sleeve on the cleaning shaft is provided with a shaft sleeve, and the end of the cleaning shaft is fixedly connected to the inner end surface of the shaft sleeve There are cleaning springs; several brush rollers are uniformly and fixedly installed on the shaft sleeve along its axial direction.

As a preferred technical solution of the present invention, the end of the sleeve extends to the outside of the mounting seat, and the end of the sleeve is fixedly installed with a circular plate coincident with its axis, and the surface of the circular plate is uniformly fixed with several A first magnet block, a fixed plate parallel to the circular plate is installed on the mounting seat, and several second magnet blocks are evenly fixed and installed on the surface of the fixed plate around the shaft sleeve; Strip receiver for cleaning shafts.

The present invention also provides a vehicle straightening process for a motor vehicle detection line, which is completed by the cooperation of the above-mentioned vehicle straightening device for a motor vehicle detection line, including the following steps:

Step 1. Preliminary correction: drive the vehicle to the position corresponding to the wheel and the preliminary correction mechanism, continue to control the vehicle until the wheel rolls to the position between the two correction rollers, and clean the dirt attached to the wheel surface through the preliminary correction mechanism , and preliminarily correct the wheel so that the axis of the wheel is in a state perpendicular to the vertical plate.

Step 2. Adjust the position: continue to control the vehicle until the wheel pushes down the part of the vertical plate corresponding to its width into the vertical groove. At this time, the height of the lifting rod and the inclined plate also changes synchronously; in this state , through the control mechanism to adjust the position of the rotating shaft and the sealing sheet, and block the oil pipe through the sealing sheet.

Step 3. Correction again: continue to control the vehicle until the wheel rolls to the position between the two inclined plates, and limit the two sides of the wheel through the two inclined plates, so as to correct the position of the vehicle and ensure the lighting of the vehicle When testing, the front of the vehicle is facing the light blocking wall.

The present invention has at least the following beneficial effects: (1) The present invention limits the position of the front wheel of the vehicle through the cooperation of two inclined plates: when the front wheel rolls between the two inclined plates, if there is an angular deviation in the front wheel, then The front wheel will necessarily roll towards one of the sloping plates, but due to the weight of the front wheel itself and the pressure exerted on the wheel by the vehicle body, the front wheel rolling onto the sloping plate will necessarily drop back to the surface of the mount, keeping the front wheel In the state of facing the light blocking wall, the driver only needs to keep the steering wheel facing forward to ensure that the front of the car is in the same direction as the front wheels, that is, the front of the car is facing the light blocking wall, which ensures the accuracy of light detection.

(2) In the process of the front wheels of the vehicle passing the vertical plate in the present invention, the part of the vertical plate corresponding to the width of the front wheel will descend and squeeze the hydraulic oil in the vertical groove, and the corresponding part of the hydraulic oil will enter the storage tank. The piston rod is pushed down in the oil tank, so that the height of the inclined plate is automatically adjusted through the action of oil pressure, and the distance between the two inclined plates on the upper surface of the mounting seat is automatically adapted to the width of the front wheel, so that the inclined plate can be adjusted to different widths. The front wheel is limited and corrected.

(3) The present invention cleans up the stains attached to the front wheels through the preliminary correction mechanism, and makes the table top of the front wheels be in the state of being all attached to the two correction rollers. The axes are perpendicular to each other, so the axis of the front wheels is also perpendicular to the vertical plane where the vertical board is located, so that the driver only needs to keep the steering wheel facing the vertical board to avoid the situation that the front wheels obliquely press the vertical board Appears, thereby ensuring that the number of vertical plates that descend is consistent with the width of the front wheels.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic diagram of a first three-dimensional structure of a vehicle straightening device for a motor vehicle detection line in an embodiment of the present invention.

Fig. 2 is a top view of a vehicle straightening device for a motor vehicle detection line in an embodiment of the present invention.

Fig. 3 is a rear view of part of the internal structure (corresponding to the part of the inclined plate) of the mounting seat in the embodiment of the present invention.

Fig. 4 is a front view of part of the internal structure (corresponding to the vertical plate part) of the mounting seat in the embodiment of the present invention.

Fig. 5 is a side view of part of the internal structure (corresponding to the vertical plate part) of the mounting seat in the embodiment of the present invention.

Fig. 6 is a side view of part of the internal structure of the oil pipe in the embodiment of the present invention.

Fig. 7 is a structural schematic diagram of the cleaning shaft, the shaft sleeve and the brush roller in the embodiment of the present invention.

Fig. 8 is a step diagram of the vehicle straightening process for the motor vehicle inspection line of the present invention.

In the figure: 1, mounting seat; 101, receiving groove; 102, cavity; 103, vertical groove; 104, oil cavity; 105, through groove; 106, control groove; 2, lifting rod; 3, inclined plate; 4 , lifting plate; 5, telescopic spring; 6, oil storage tank; 7, sealing plate; 8, piston column; 9, vertical plate; 10, return spring; 11, oil pipe; 12, rotating shaft; 13, sealing plate; 14 Control mechanism; 1401, gear; 1402, control rack; 1403, control cylinder; 15, rotating roller; 16, rubber strip; 17, preliminary correction mechanism; 1701, horizontal shaft; , strip groove; 1705, cleaning shaft; 1706, cleaning motor; 1707, axle sleeve; 1708, cleaning spring; 1709, brush roller; 1710, circular plate; 1711, first magnet block; 1712, fixed plate; 1713, The second magnet block; 1714, a strip-shaped material receiving box.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

As shown in Figures 1 and 3, the present embodiment provides a vehicle straightening device for a motor vehicle detection line, including a mounting base 1, the mounting base 1 is installed underground and the upper surface of the mounting base 1 is flush with the ground, and the mounting base 1 1. Two elevating rods 2 are vertically slidably installed on the upper surface. Inclined plates 3 are fixedly installed on the top of elevating rods 2. Several horizontal rotating rollers 15 are evenly installed on the upper surface of the inclining plate 3 from top to bottom. The plates 3 are symmetrically arranged and the distance between the bottom ends of the two inclined plates 3 is smaller than the distance between the top ends of the two inclined plates 3; the upper surface of the mounting seat 1 corresponding to the position of each inclined plate 3 is provided with an allowable inclined plate 3 Entering the accommodation groove 101, the inside of the mounting seat 1 is provided with a cavity 102, the bottom end of the lifting rod 2 extends into the cavity 102, and a horizontal lifting plate 4 is fixedly connected between the bottom ends of the two lifting rods 2, and the cavity The bottom surface of 102 is vertically fixed with several telescopic springs 5, and the top of telescopic springs 5 is fixedly connected on the lifting plate 4; the top surface of the cavity 102 is fixedly equipped with an oil storage tank 6, and the interior of the oil storage tank 6 is filled with hydraulic oil. A sealing plate 7 is vertically slidably installed, and a piston column 8 is vertically fixedly installed on the bottom surface of the sealing plate 7, and the bottom end of the piston column 8 is fixedly connected on the lifting plate 4.

When the vehicle to be detected travels until the front wheels of the vehicle reach the position between the two inclined plates 3, if the front wheels are facing the light-shielding wall, the edges on both sides of the front wheels are just in contact with the upper surface of the inclined plates 3, and the wheels keep facing forward. The state of the light-blocking wall; if there is a deviation in the front wheel, the front wheel will roll towards the inclined plate 3 on one side, but because the front wheel itself is subjected to gravity and the front wheel is under pressure from the vehicle body, it will roll towards the inclined plate 3 on one side The front wheels of the car descend back to the upper surface of the mounting base 1, so that the front wheels reach the state of facing the light blocking wall. During the whole process, the driver only needs to keep the steering wheel forward, and the front of the car can be synchronized with the front wheels to reach the state of facing the light blocking wall. state of the wall.

Since the front wheels of different vehicles have different widths, the distance between the upper surface of the mounting seat 1 and the intersection line between the two inclined plates 3 also needs to be consistent with the wheel width, and the lifting rod 2 can drive the inclined plates 3 to rise or fall; specifically During operation, it is necessary to control the hydraulic oil in the oil storage tank 6. When the hydraulic oil in the oil storage tank 6 increases, the hydraulic oil will overcome the elastic force of the telescopic spring 5 to push the sealing plate 7 and the piston rod 8 down, and the lifting rod 2 and the inclined plate 3 Synchronously descending, the distance between the upper surface of the mounting seat 1 and the intersection line between the two inclined plates 3 increases, that is, the wider the front wheel, the more hydraulic oil is required in the oil storage tank 6; when the hydraulic oil in the oil storage tank 6 When it is reduced, the resilience of the telescopic spring 5 will push the sealing plate 7 and the piston rod 8 up, the lifting rod 2 and the inclined plate 3 will rise synchronously, and the distance between the upper surface of the mounting base 1 and the intersection line between the two inclined plates 3 will also decrease .

As shown in Fig. 4, Fig. 5 and Fig. 6, several vertical plates 9 are installed on the upper surface of the mounting seat 1 at the position in front of the receiving groove 101, and the several vertical plates 9 are evenly arranged along the left and right directions, and the mounting seat 1 The position corresponding to each vertical plate 9 on the upper surface is provided with a vertical groove 103 slidingly matched with the vertical plate 9, and a return spring 10 is fixedly connected between the bottom surface of the vertical groove 103 and the vertical plate 9, and the return spring 10 is Compression spring, not stretchable; the top surface of the vertical plate 9 is arc-shaped, and the intersection position between the top surface of the vertical plate 9 and the side wall of the vertical plate 9 is flush with the upper surface of the mounting seat 1; the vertical plate 9 A rubber strip 16 for sealing is fixedly installed at the edge of the bottom surface, and the rubber strip 16 is closely attached to the inner wall of the vertical groove 103; an oil chamber 104 is opened inside the mounting base 1, and a through groove connecting the oil chamber 104 is opened on the bottom surface of the vertical groove 103 105; several oil pipes 11 connecting the oil chamber 104 and the oil storage tank 6 are fixedly installed inside the mounting seat 1; a rotating shaft 12 is installed in the oil pipe 11, and a sealing sheet 13 is fixedly installed on the rotating shaft 12, and the sealing sheet 13 can control the oil pipe 11 on and off.

When the front wheels press the vertical plates 9, the front wheels of different widths will cause different numbers of vertical plates 9 to descend, and the hydraulic oil in the vertical groove 103 will be squeezed when the vertical plates 9 descend. It enters the oil chamber 104 through the through groove 105, and enters the oil storage tank 6 through the oil pipe 11; the wider the front wheel, the more vertical plates 9 descend, that is, the more hydraulic oil enters the oil storage tank 6, thereby realizing two inclined The plate 3 automatically lifts according to the width of the front wheel; it should be noted that since the return spring 10 is a compression spring and cannot be stretched, when the vertical plate 9 descends, it will only squeeze all the hydraulic oil in the corresponding vertical groove 103 Entering the oil pipe 11, the hydraulic oil will not flow back into other vertical grooves 103, thereby ensuring the accuracy of the rising height of the inclined plate 3; when the wheel is pressed on the vertical plate 9, the rotating shaft 12 drives the sealing piece 13 to rotate After the oil pipe 11 is closed by the sealing plate 13, the hydraulic oil cannot flow freely in the oil pipe 11, that is, the hydraulic oil volume in the oil storage tank 6 remains unchanged, and the elevating rod 2 and the inclined plate 3 can be kept at a constant height.

As shown in Figure 2, the control mechanism 14 for controlling the rotating shaft 12 is installed on the mounting base 1. The control mechanism 14 includes a gear 1401 fixedly installed on the rotating shaft 12. The top surface of the mounting base 1 is provided with a control groove 106, and the inner level of the control groove 106 is A control rack 1402 meshed with the gear 1401 is slidingly installed, and two control cylinders 1403 are fixedly installed in the control slot 106, and the ends of the telescopic sections of the two control cylinders 1403 are respectively fixedly connected with the two ends of the control rack 1402; When the wheel is pressed on the vertical plate 9, the control rack 1402 moves horizontally through the control cylinder 1403, the control rack 1402 drives the gear 1401 to rotate, and the gear 1401 drives the rotating shaft 12 and the sealing plate 13 to rotate, so that the on-off of the oil pipe 11 can be realized .

As shown in Fig. 1, Fig. 2 and Fig. 7, a preliminary correction mechanism 17 is provided on the mounting base 1 at the position in front of several vertical plates 9, and the preliminary correction mechanism 17 includes two horizontal shafts rotatably mounted on the mounting base 1 1701, the vertical surface where the vertical plate 9 is located is perpendicular to the horizontal axis 1701; each horizontal axis 1701 is fixedly installed with a correction roller 1702 coincident with its axis, and the mounting base 1 is fixedly installed with a roller for driving the horizontal axis 1701 to rotate The straightening motor 1703; the surface of the straightening roller 1702 is evenly provided with several bar-shaped grooves 1704 along its circumference; the cleaning shaft 1705 parallel to the horizontal axis 1701 is installed on the mounting base 1, and the cleaning shaft 1705 is located below the middle of the two straightening rollers 1702 position; the mounting base 1 is fixedly installed with a cleaning motor 1706 for driving the cleaning shaft 1705 to rotate; the cross section of the cleaning shaft 1705 is cross-shaped and the movable sleeve on the cleaning shaft 1705 is provided with a shaft sleeve 1707, and the end of the cleaning shaft 1705 and the shaft sleeve A cleaning spring 1708 is fixedly connected between the inner end faces of 1707; several brush rollers 1709 are evenly and fixedly installed on the shaft sleeve 1707 along its axial direction; the end of the shaft sleeve 1707 extends to the outside of the mounting base 1, and A circular plate 1710 coincident with its axis is fixedly mounted on the top of the circular plate 1710, and several first magnet blocks 1711 are evenly fixed on the surface of the circular plate 1710 along its circumference. The surface of the plate 1712 is evenly fixed with several second magnet blocks 1713 around the bushing 1707; a bar-shaped receiving box 1714 parallel to the cleaning shaft 1705 is movably installed on the mounting base 1 below the cleaning shaft 1705.

If the driver directly controls the vehicle to press the vertical plate 9, the axis of the front wheel may not be perpendicular to the vertical plane where the vertical plate 9 is located, that is, the front wheel may obliquely press the vertical plate 9. The vertical plate 9 that does not correspond to the wheel width will be extruded and descended by the front wheel (the number of vertical plates 9 that actually descends is greater than the number of vertical plates 9 corresponding to the width of the front wheel), which causes the lifting rod 2 and the inclined plate 3 to descend The height is greater than the height it should drop, resulting in too wide a distance between the upper surface of the mounting seat 1 and the intersection line between the two inclined plates 3, and the two inclined plates 3 cannot play a role in limiting and correcting the front wheels; therefore Before the front wheel contacts with the vertical plate 9, the front wheel needs to be preliminarily corrected by the preliminary correction mechanism 17, so that the axis of the front wheel is kept perpendicular to the vertical plane where the vertical plate 9 is located; the working principle of the preliminary correction mechanism 17 is as follows: The driver keeps the steering wheel and drives the vehicle forward until the front wheel rolls over one of the straightening rollers 1702 and falls between the two straightening rollers 1702. Since the front wheels will tend to reach a stable state, the tread of the front wheels will eventually meet the two straightening rollers. Two straightening rollers 1702 fit together, and the vertical plane where the vertical plate 9 is located is perpendicular to the axes of the straightening rolls 1702, so the axis of the front wheel will also be perpendicular to the vertical plane where the vertical plate 9 is located. In this state Next, the driver keeps the steering wheel to drive the vehicle forward until the front wheel turns over another correction roller 1702, and the driver keeps the steering wheel to drive the vehicle forward, and the front wheel can ensure that the vertical plate 9 is pressed in the correct state.

In the actual detection process, there are often stains such as mud clods attached to the wheels. If these stains are not removed, it will affect the fit of the front wheel and the two straightening rollers 1702, that is, the axis of the front wheel cannot be in the same position as the vertical plate 9. The state where the vertical surface is vertical; when the front wheel falls between the two straightening rollers 1702, the straightening motor 1703 drives the straightening roller 1702 to rotate, and the edge of the strip groove 1704 will clean up the stains attached to the front wheel, Part of the dirt directly falls to the upper surface of the mounting base 1, and some of the dirt will enter the strip groove 1704; the cleaning motor 1706 drives the cleaning shaft 1705 to rotate, and the cleaning shaft 1705 drives the shaft sleeve 1707, the brush roller 1709, the circular plate 1710 and the first The magnet blocks 1711 rotate synchronously, and when the brush roller 1709 rotates, the dirt in the strip groove 1704 is cleaned into the strip receiving box 1714; at the same time, mutual repulsion is generated intermittently between the first magnet block 1711 and the second magnet block 1713 , the mutual repulsion force and the resilience of the cleaning spring 1708 act together to make the shaft sleeve 1707, the brush roller 1709, the circular plate 1710 and the first magnet block 1711 reciprocate in the axial direction, thereby improving the brush roller 1709 to the bar shape. Cleaning effect of stains in tank 1704.

This embodiment also provides a vehicle straightening process for a motor vehicle inspection line, which is completed by using the above-mentioned vehicle straightening device for a motor vehicle inspection line, including the following steps:

Step 1. Preliminary correction: drive the vehicle to the position corresponding to the wheel and the preliminary correction mechanism 17, continue to control the vehicle until the wheel rolls to the position between the two correction rollers 1702, and use the preliminary correction mechanism 17 to correct the dirt attached to the wheel surface. Objects are cleaned up, and the wheel is preliminarily corrected so that the wheel axis is in a state perpendicular to the vertical plate 9.

Step 2, adjust the position: continue to control the vehicle to move forward until the wheel pushes down the part of the vertical plate 9 corresponding to its width into the vertical groove 103, at this time the height of the lifting rod 2 and the inclined plate 3 also changes synchronously; In this state, the positions of the rotating shaft 12 and the sealing sheet 13 are adjusted by the control mechanism 14 , and the oil pipe 11 is blocked by the sealing sheet 13 .

Step 3. Correction again: continue to control the vehicle until the wheel rolls to the position between the two inclined plates 3, and limit the two sides of the wheel through the two inclined plates 3, so as to correct the position of the vehicle and ensure the correctness of the vehicle When performing light detection, the front of the vehicle is facing the light blocking wall.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. A vehicle correction device for a motor vehicle detection line, comprising a mounting base (1), the mounting base (1) is installed underground and the upper surface of the mounting base (1) is flush with the ground, and the mounting base (1) upper surface is vertical Two elevating rods (2) are installed in a straight slide, and inclined plates (3) are fixedly installed on the top of the elevating rods (2). The two inclined plates (3) are arranged symmetrically and between the bottom ends of the two inclined plates (3). The distance is less than the distance between the tops of two inclined plates (3), and it is characterized in that: the upper surface of the mounting seat (1) corresponding to the position of each inclined plate (3) is provided with a hole that allows the inclined plate (3) to enter The receiving groove (101), the mounting seat (1) is provided with a cavity (102), the bottom end of the lifting rod (2) extends into the cavity (102), and the bottom ends of the two lifting rods (2) are fixedly connected There is a horizontal lifting plate (4), and several telescopic springs (5) are vertically fixedly installed on the bottom surface of the cavity (102), and the tops of the telescopic springs (5) are fixedly connected on the lifting plate (4); the top of the cavity (102) An oil storage tank (6) is fixedly installed on the surface, and the inside of the oil storage tank (6) is filled with hydraulic oil. A sealing plate (7) is vertically slid inside the oil storage tank (6), and a piston is fixed vertically on the bottom of the sealing plate (7). Column (8), the bottom end of piston column (8) is fixedly connected on the lifting plate (4); Several vertical plates (9) are installed on the upper surface of the mounting seat (1) at the position in front of the receiving groove (101), and the several vertical plates (9) are evenly arranged along the left and right directions, and the upper surface of the mounting seat (1) The position corresponding to each vertical plate (9) is provided with a vertical groove (103) slidingly matched with the vertical plate (9), and the bottom surface of the vertical groove (103) is fixedly connected with the vertical plate (9). Return spring (10); oil chamber (104) is provided inside the installation seat (1), and a through groove (105) connecting the oil chamber (104) is provided on the bottom surface of the vertical groove (103); the interior of the installation seat (1) is fixedly installed There is an oil pipe (11) communicating with the oil chamber (104) and the oil storage tank (6); a rotating shaft (12) is installed in the oil pipe (11), and a sealing sheet (13) is fixedly installed on the rotating shaft (12), and the sealing sheet (13 ) can control the on-off of the oil pipe (11), and a control mechanism (14) for controlling the rotating shaft (12) is installed on the mounting seat (1). 2. A vehicle straightening device for a motor vehicle detection line according to claim 1, characterized in that: several horizontal rotating rollers (15) are uniformly installed on the upper surface of the inclined plate (3) from top to bottom. 3. A vehicle straightening device for a motor vehicle detection line according to claim 1, characterized in that: the top surface of the vertical plate (9) is arc-shaped, and the top surface of the vertical plate (9) is in line with the vertical The intersection position of the side wall of the straight plate (9) is flush with the upper surface of the mounting seat (1). 4. A vehicle straightening device for a motor vehicle detection line according to claim 1, characterized in that: a rubber strip (16) for sealing is fixedly installed at the edge of the bottom surface of the vertical plate (9), and the rubber strip ( 16) fit closely with the inner wall of the vertical groove (103). 5. A vehicle straightening device for a motor vehicle detection line according to claim 1, characterized in that: there are several oil pipes (11), and the control mechanism (14) includes a gear fixedly installed on the rotating shaft (12). 1401), the top surface of the mounting seat (1) is provided with a control groove (106), and a control rack (1402) meshing with the gear (1401) is installed horizontally in the control groove (106), and the control groove (106) is fixed inside Two control cylinders (1403) are installed, and the telescoping section ends of the two control cylinders (1403) are respectively fixedly connected with the two ends of the control rack (1402). 6. A vehicle straightening device for a motor vehicle detection line according to claim 1, characterized in that: a preliminary straightening mechanism (17) is provided at a position in front of several vertical plates (9) on the mounting base (1) ), the preliminary correction mechanism (17) includes two horizontal shafts (1701) that are rotatably installed on the mounting base (1), and the vertical plane where the vertical plate (9) is located is perpendicular to the horizontal shaft (1701); each horizontal Correction rollers (1702) coincident with their axes are fixedly installed on the shafts (1701), and a correction motor (1703) for driving the horizontal axis (1701) to rotate is fixedly installed on the mounting seat (1). 7. A vehicle straightening device for a motor vehicle detection line according to claim 6, characterized in that: the surface of the straightening roller (1702) is evenly provided with several strip-shaped grooves (1704) along its circumference; 1) A cleaning shaft (1705) parallel to the horizontal shaft (1701) is installed on the top to rotate, and the cleaning shaft (1705) is located below the middle of the two straightening rollers (1702); The cleaning motor (1706) that the shaft (1705) rotates; the section of the cleaning shaft (1705) is cross-shaped and the movable sleeve on the cleaning shaft (1705) is provided with a shaft sleeve (1707), and the cleaning shaft (1705) end and the shaft sleeve ( 1707) a cleaning spring (1708) is fixedly connected between the inner end surfaces; several brush rollers (1709) are uniformly and fixedly installed on the shaft sleeve (1707) along its axial direction. 8. A vehicle straightening device for a motor vehicle detection line according to claim 7, characterized in that: the end of the bushing (1707) extends to the outside of the mounting base (1), and the end of the bushing (1707) is fixed A circular plate (1710) coincident with its axis is installed, and the surface of the circular plate (1710) is uniformly fixed with several first magnet blocks (1711) along its circumference, and the mounting seat (1) is equipped with parallel to the circular plate ( 1710) of the fixed plate (1712), the surface of the fixed plate (1712) is evenly fixed with several second magnet blocks (1713) around the shaft sleeve (1707); The position is movable to be equipped with the bar-shaped receiving box (1714) that is parallel to cleaning axis (1705). 9. A vehicle straightening process for a motor vehicle detection line, characterized in that: a vehicle correction device for a motor vehicle detection line as claimed in claim 8 is used to cooperate to complete, comprising the following steps: Step 1. Preliminary correction: drive the vehicle to the position corresponding to the wheel and the preliminary correction mechanism (17), continue to control the vehicle to move forward until the wheel rolls to the position between the two correction rollers (1702), pass the preliminary correction mechanism (17) Clean up the dirt attached to the surface of the wheel, and preliminarily correct the wheel so that the axis of the wheel is in a state perpendicular to the vertical plate (9); Step 2, adjust the position: continue to control the vehicle to move forward until the wheel squeezes the part of the vertical plate (9) corresponding to its width downward into the vertical groove (103), at this time the lifting rod (2) and the inclined plate (3) ) also changes synchronously; in this state, adjust the positions of the rotating shaft (12) and the sealing sheet (13) through the control mechanism (14), and block the oil pipe (11) through the sealing sheet (13); Step 3. Correction again: continue to control the vehicle until the wheel rolls to the position between the two inclined plates (3), and limit the two sides of the wheel through the two inclined plates (3), thereby correcting the position of the vehicle , to ensure that the front of the vehicle is facing the light blocking wall when the light detection of the vehicle is performed.

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