CN113532334B

CN113532334B - Device and method for measuring toe-in angle and camber angle of vehicle

Info

Publication number: CN113532334B
Application number: CN202110878477.XA
Authority: CN
Inventors: 贾飞
Original assignee: Beijing Changan Automobile Engineering Technology Research Co Ltd
Current assignee: Beijing Changan Automobile Engineering Technology Research Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2023-04-07
Anticipated expiration: 2041-07-30
Also published as: CN113532334A

Abstract

The invention discloses a device and a method for measuring a toe-in angle and a camber angle of a vehicle, which comprises measuring components respectively fixed on two sides of the vehicle to be measured, wherein each measuring component comprises a reflector, a support plate, a laser component and an adjusting component; the laser assembly comprises a measuring laser, the measuring laser is fixed on the side surface of the support plate far away from the vehicle to be detected, and a measuring beam hole for allowing a measuring beam of the measuring laser to pass through is formed in the support plate; the supporting plate is fixed on the adjusting component and can realize the position adjustment of the supporting plate through the adjusting component, a reflection block is arranged at the position, close to the measuring beam hole, of the reference surface of the supporting plate, a reflection surface with an included angle of 45 degrees with the reference surface is arranged on the reflection block, and a dial perpendicular to the reference surface is arranged at the end part of the supporting plate facing the reflection surface. The portable measuring instrument can guarantee measuring accuracy, is small in size and light in weight, and improves carrying convenience.

Description

Device and method for measuring toe-in angle and camber angle of vehicle

Technical Field

The invention relates to a measuring tool, in particular to a device and a method for measuring a toe-in angle and a camber angle of a vehicle.

Background

The toe-in and camber angle of a wheel have a significant influence on the running stability of a vehicle, the life of a tire, and the like, and thus, in the maintenance of a vehicle, it is often necessary to measure the toe-in and camber angle.

However, the currently used measuring devices are all fixedly installed large 3D measuring devices, which are not movable and inconvenient to use although they have high accuracy. Or the distance difference between the front edge and the rear edge of the tire is measured by a measuring tape, and the measurement precision is unacceptable. Some patents have also searched for portable measuring devices, but the effect is not satisfactory considering the use environment and the accuracy influence of the vehicle.

CN108020133A discloses an apparatus and method for accurately measuring and adjusting the distance of a toe-in of an automobile, which reflects the toe-in by measuring the distance difference between the front edge and the rear edge of a wheel. The data is not common data in automobile maintenance, and a toe-in angle or a distance difference between the front edge and the rear edge of the tire needs to be converted for use. The whole structure is purely mechanical, needs to span two sides of the vehicle and cover the front suspension length or the rear suspension length of the vehicle, still has larger one-dimensional size, and is inconvenient to carry. CN106985909A discloses a wheel alignment and toe angle adjustment system for a three-wheeled vehicle, which reflects the angle by means of laser reflection, but the positioning of the laser and the reflection plate both depend on the wheel itself, and lack accurate positioning. Considering that the toe-in angle of the wheel is generally a slight angle of about 10', and the wheel base deviation of the vehicle and the like affect the measurement system, it is difficult to obtain an accurate measurement result by this measurement method. In addition, the two technical schemes can only measure the toe-in angle and cannot measure the camber angle

Disclosure of Invention

The invention aims to provide a device and a method for measuring a toe-in angle and a camber angle of a vehicle, which can ensure the measurement precision, have small volume and light weight and improve the carrying convenience.

The device for measuring the toe-in angle and the camber angle of the vehicle comprises measuring components which are respectively fixed on two sides of the vehicle to be detected, wherein each measuring component comprises a reflector, a support plate, a laser component and an adjusting component; the laser assembly comprises a measuring laser, the measuring laser is fixed on the side surface of the support plate far away from the vehicle to be detected, the side surface of the support plate close to the vehicle to be detected is a reference surface, and a measuring beam hole for allowing a measuring beam of the measuring laser to pass through is formed in the support plate; the utility model discloses a vehicle toe-in angle and camber angle measuring device, including backup pad, measuring laser, backup pad, measuring laser hole, adjusting part, measuring laser hole, the backup pad is fixed in adjusting part, can realize backup pad position adjustment through adjusting part, the position that the reference surface of backup pad is close to measuring beam hole is equipped with reflection of light piece, be equipped with the reflection of light face of personally submitting 45 contained angles with the reference on the reflection of light piece, the backup pad tip of this reflection of light face orientation is equipped with the calibrated scale perpendicular with the reference surface, the calibrated scale is equipped with horizontal toe-in angle reading area and vertical camber angle reading area, and the light beam that the measuring laser sent passes the measuring beam hole in the backup pad after the reflection of light piece to the reflection of light face on the wheel, then reflects to the calibrated scale, confirms vehicle toe-in angle and camber angle through the reading on the calibrated scale.

Further, the measuring beam hole is of a T shape and comprises a transverse strip-shaped hole and a vertical strip-shaped hole, the middle of the vertical strip-shaped hole is in through connection with the transverse strip-shaped hole, and a line, intersecting with the base surface, of the light reflecting surface is parallel to the vertical strip-shaped hole.

Furthermore, the front end part and the rear end part of the reflector are respectively hinged and fixed with the first clamping jaw and the second clamping jaw, and a spring is connected between the first clamping jaw and the second clamping jaw and provides inward pressure through the spring.

The wheel center mark positioning device comprises a positioning laser and a reference laser fixed on a support plate on one side, wherein a reference reflection point corresponding to the position of the reference laser is arranged on the support plate on the other side, a positioning beam hole and a reference beam hole corresponding to beams emitted by the positioning laser and the reference laser are arranged on the support plate, and the distance from the measuring beam hole to the wheel center mark is the same as the distance from the measuring beam hole to the positioning beam hole.

Furthermore, the adjusting assembly comprises a base, and an X-direction adjusting assembly, a Y-direction adjusting assembly and a Z-direction adjusting assembly which are fixed on the base, the X-direction adjusting assembly comprises an X-direction slide rail, an X-direction slide block and an X-direction lead screw, the X-direction slide rail is arranged on the upper surface of the base, and the X-direction slide block moves along the X-direction slide rail under the drive of the X-direction lead screw; the Y-direction adjusting assembly comprises a Y-direction slide rail, a Y-direction slide block and a Y-direction lead screw, the Y-direction slide rail is arranged on the upper surface of the X-direction slide block and is vertical to the X-direction slide rail, and the Y-direction slide block moves along the Y-direction slide rail under the drive of the Y-direction lead screw; the Z-direction adjusting assembly comprises an upright post, the lower end of the upright post is fixedly connected with the Y-direction sliding block, and a guide sleeve in sliding fit with the upright post and a locking screw for locking the position of the guide sleeve are arranged on the supporting plate.

Further, the base is the rectangle, and one in four angles is equipped with highly fixed first stabilizer blade, and the other three is equipped with height-adjustable's second stabilizer blade.

Furthermore, the wheel center mark is in a cross shape, the center of the wheel center mark is in a circle, and the diameter of the circle is the same as that of the positioning light beam.

A method of measuring toe and camber angles of a vehicle, comprising the steps of:

s1, fixing a reflector on a wheel, and adjusting the position of the reflector to enable the axis of the wheel to pass through a wheel center mark;

s2, adjusting the position of the support plate through the adjusting assembly to enable the reference surface of the support plate to be parallel to an XZ plane of the whole vehicle coordinate system;

and S3, opening the measuring laser, irradiating the measuring beam emitted by the measuring laser at the wheel center mark through the measuring beam hole to form a first reflected beam, forming a second reflected beam after the first reflected beam passes through the reflecting surface of the reflecting block, irradiating the second reflected beam onto the dial at the end part of the supporting plate, and determining the toe-in angle and the camber angle of the vehicle through the reading on the dial.

Compared with the prior art, the invention has the following beneficial effects.

1. According to the invention, the toe-in angle and the camber angle of the wheel are amplified through the reflection of laser, the reflecting block is arranged at the position of the reference surface close to the measuring beam hole, and the offset distance of the reflected beam is further amplified by prolonging the length of the optical path, so that the accurate measurement of the toe-in angle and the camber angle is realized. The whole measuring device is small in size and light in weight, and carrying convenience is improved.

2. The front end part and the rear end part of the reflector are respectively hinged and fixed with the first clamping jaw and the second clamping jaw, the spring is connected between the first clamping jaw and the second clamping jaw, inward pressure is provided through the spring, then self-centering clamping on a wheel is achieved, and errors caused by transverse movement of a light reflecting point are reduced.

3. The measuring beam hole is T-shaped and comprises a transverse strip-shaped hole and a vertical strip-shaped hole, wherein the middle part of the vertical strip-shaped hole is in through connection with the transverse strip-shaped hole, so that the measuring beam can be controlled to be T-shaped, and convenience and accuracy of reading are improved.

4. The invention accurately establishes a measuring reference through the cooperation of the reference laser fixed on the supporting plate at one side and the reference reflecting point on the supporting plate at the other side, controls the distance between the supporting plate and the reflecting plate through the positioning laser, accurately controls the length of a light path, and provides a basis for the accurate measurement of a toe-in angle and an camber angle.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the reflector of the present invention;

FIG. 3 is a schematic view of the construction of the wheel center mark of the present invention;

FIG. 4 is a schematic view of the side of the support plate opposite the datum plane in accordance with the present invention;

FIG. 5 is a schematic view of a datum plane according to the present invention;

FIG. 6 is a schematic view of the measurement beam aperture and reflector block of the present invention;

FIG. 7 is a schematic view of the dial of the present invention;

FIG. 8 is a schematic view of the adjustment assembly of the present invention;

FIG. 9 is a schematic view of the base of the present invention;

FIG. 10 is a schematic view of the placement of the reference retro-reflective dots of the present invention;

FIG. 11 is a schematic view of the positioning operation optical path of the present invention;

FIG. 12 is a schematic optical path diagram of the measurement operation of the present invention.

In the figure, 1-a reflector panel, 11-a wheel center mark, 12-a first claw, 13-a second claw, 14-a spring, 15-a rotating shaft,

2-support plate, 21-measurement beam aperture, 22-reference beam aperture, 23-positioning beam aperture, 24-dial, 241-toe angle reading zone, 242-camber angle reading zone, 25-guide sleeve;

3-laser component, 31-measuring beam, 32-first reflected beam, 33-second reflected beam;

4-adjusting component, 41-X direction adjusting component, 411-X direction sliding rail, 412-X direction sliding block, 413-X direction screw rod, 414-X direction adjusting hand wheel, 415-first mounting protrusion; 42-Y direction adjusting component, 421-Y direction sliding rail, 422-Y direction sliding block, 423-Y direction lead screw, 424-Y direction adjusting hand wheel and 425-second mounting protrusion; 43-Z direction adjusting components, 431-upright columns, 432-locking screws and 433-Z direction adjusting hand wheels; 44-base, 441-first leg, 442-second leg;

5-positioning element, 51-reference laser, 511-reference beam, 52-positioning laser, 521-positioning beam, 53-reference reflection point,

6-reflection of light piece, 61-reflection of light face, 7-division of light box, 8-power, 9-spirit level.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 7, the vehicle toe-in angle and camber angle measuring device comprises measuring assemblies respectively fixed on two sides of a vehicle to be detected, wherein each measuring assembly comprises a reflector 1, a support plate 2, a laser assembly 3 and an adjusting assembly 4, the reflector 1 is fixed on a wheel, the plane where the reflector 1 is located is perpendicular to the axis of the wheel, and the reflector 1 is provided with a wheel center mark 11 at a position corresponding to the axis of the vehicle. Referring to fig. 2, the front end portion and the rear end portion of the reflector 1 are hinged and fixed to the first clamping jaw 12 and the second clamping jaw 13 through the rotating shaft 15, the spring 14 is connected between the first clamping jaw 12 and the second clamping jaw 13, inward pressure is provided through the spring 14, the reflector 1 can be fixed to the outer side of a wheel, meanwhile, due to the symmetry of the structure of the two sides of the reflector 1 and stress, the wheel axis passes through the wheel center mark 11 conveniently, the reflector 1 is clamped on the wheel in a self-centering manner, and errors caused by transverse movement of a light reflecting point are reduced. Referring to fig. 3, the wheel center mark 11 has a cross shape with a center having a circular shape having the same diameter as the positioning beam 521.

Laser subassembly 3 is including measuring the laser instrument, should measure the laser instrument and be fixed in backup pad 2 and keep away from waiting to examine on the side of examining the vehicle, backup pad 2 is close to the side of examining the vehicle and is the reference surface. In order to better realize the positioning calibration of the device, a positioning assembly 5 is further provided, the positioning assembly 5 comprises a positioning laser 52 and a reference laser 51 fixed on the support plate 2 of the left-side measuring assembly, and a reference reflecting point 53 corresponding to the position of the reference laser 51 is arranged on the support plate 2 of the right-side measuring assembly, so that the reference laser 51 and the reference reflecting point 53 are the distinguishing points of the left-side measuring assembly and the right-side measuring assembly, and the other assemblies are symmetrically arranged with the vehicle to be detected as the center. The support plate 2 is provided with a measuring beam hole 21, a positioning beam hole 23 and a reference beam hole 22 corresponding to the measuring beam 32, the positioning beam 521 and the reference beam 511 emitted from the measuring laser, the positioning laser 52 and the reference laser 51, and the distance from the measuring beam hole 21 to the wheel center mark 11 is the same as the distance from the measuring beam hole 21 to the positioning beam hole 23.

The utility model discloses a measuring laser device, including backup pad 2, measuring beam hole 21, backup pad 2, measuring laser beam hole 21, measuring laser beam hole 31, adjusting part 4, backup pad 2 position adjustment can be realized through adjusting part 4, the position that the reference surface of backup pad 2 is close to measuring beam hole 21 is equipped with reflection of light piece 6, be equipped with the reflection of light face 61 that personally submits 45 contained angles with the reference on the reflection of

light piece

6, 2 tip of backup pad of this reflection of light face 61 orientation are equipped with the calibrated scale 24 perpendicular with the reference surface, calibrated scale 24 is equipped with horizontal toe-in angle reading district 241 and vertical camber angle reading district 242, and measuring laser beam 31 that sends passes measuring beam hole 21 on the backup pad 2 and reflects the reflection of light face 61 to reflection of light piece 6 through reflector 1 on the wheel, then reflects to calibrated scale 4, confirms vehicle toe-in angle and camber angle through the reading on calibrated scale 4.

Preferably, in order to facilitate the reading and improve the reading accuracy, the whole measuring beam hole 21 is "T" type, and includes horizontal bar hole and the vertical bar hole of middle part and horizontal bar hole through connection, the line that the reflector surface 61 and the base face intersect is parallel with vertical bar hole.

Preferably, referring to fig. 8 to 10, the adjusting assembly 4 includes a base 44, and an X-direction adjusting assembly 41, a Y-direction adjusting assembly 42, and a Z-direction adjusting assembly 43 fixed on the base 44, wherein the X-direction adjusting assembly 41 includes an X-direction sliding rail 411, an X-direction sliding block 412, and an X-direction lead screw 413. The number of the X-direction sliding rails 411 is two, the X-direction sliding rails are arranged on the upper surface of the base 44 in a left-right parallel mode, protrusions which are in sliding fit with the two X-direction sliding rails 411 correspondingly are arranged at the front end portion and the rear end portion of the X-direction sliding block 412, two first mounting protrusions 415 used for fixing an X-direction lead screw 413 are arranged on the base 44, a threaded hole which is in sliding fit with the X-direction lead screw 413 correspondingly is formed in the middle of the X-direction sliding block 412, an X-direction adjusting hand wheel 414 is fixed at the end portion of the X-direction lead screw 413, and the X-direction sliding block 412 can horizontally move back and forth along the X-direction sliding rails 411 by rotating the X-direction adjusting hand wheel 414 clockwise or anticlockwise.

The Y-direction adjusting assembly 42 includes a Y-direction slide rail 421, a Y-direction slider 422, and a Y-direction lead screw 423. The number of the Y-direction sliding rails 421 is two, the Y-direction sliding rails 421 are arranged on the upper surface of the X-direction sliding block 412 in a front-back parallel mode, namely the Y-direction sliding rails 421 are perpendicular to the X-direction sliding rails 411, the left end portion and the right end portion of the Y-direction sliding block 422 are provided with protrusions correspondingly matched with the two Y-direction sliding rails 421, the X-direction sliding block 412 is provided with two second mounting protrusions 425 used for fixing the Y-direction lead screw 423, the middle portion of the Y-direction sliding block 422 is provided with a threaded hole correspondingly matched with the Y-direction lead screw 423, the end portion of the Y-direction lead screw 423 is fixedly provided with a Y-direction adjusting hand wheel 424, and the Y-direction sliding block 422 can horizontally move left and right along the Y-direction sliding rails 421 by rotating the Y-direction adjusting hand wheel 424 clockwise or anticlockwise.

The Z-direction adjusting assembly 43 comprises a vertical column 431, the lower end of the vertical column 431 is fixedly connected with a Y-direction sliding block 422, a guide sleeve 25 which is in sliding fit with the vertical column 431 is arranged on the supporting plate 2, a locking screw 432 and a Z-direction adjusting hand wheel 433 are arranged on the guide sleeve 25, the guide sleeve 25 vertically moves up and down along the vertical column 431 by clockwise or anticlockwise rotating the Z-direction adjusting hand wheel 433, and after the Z-direction is adjusted in place, a locking bolt 432 is screwed down to realize the relative fixed connection of the guide sleeve 25 and the vertical column 431.

The base 44 is rectangular, one of the four corners is provided with a first supporting leg 441 with fixed height, the other three are provided with second supporting legs 442 with adjustable height, the second supporting legs 422 are screws, and the base is provided with threaded holes matched with the screws.

The base 44 is fixed with a power supply 8 and a level gauge 9, the level gauge 9 is used for confirming the overall levelness of the base 44, the power supply 8 is connected with the switch box 7 through a wiring harness, the switch box 7 is connected with the measuring laser, the reference laser 51 and the positioning laser 52 through the wiring harness, and the switch box 7 is provided with switches for respectively controlling the measuring laser, the reference laser 51 and the positioning laser 52 to be switched on and switched off.

s1, clamping a first clamping jaw 12 and a second clamping jaw 13 at two ends of a reflector 1 on a wheel of a vehicle to be detected, utilizing a spring 14 to realize self-positioning fixed connection of the reflector 1 and the wheel, and enabling the axis of the wheel to pass through a wheel center mark 11.

And S2, adjusting the position of the support plate 2 through the adjusting component 4 to enable the reference surface of the support plate 2 to be parallel to an XZ plane of a whole vehicle coordinate system. The specific operation is as follows: referring to fig. 11, the three second legs 442 of the base 44 are first adjusted in height until the level 9 is level. Then, the measuring laser, the reference laser 51 and the positioning laser 52 are turned on, and the base positions of the left and right side measuring assemblies are adjusted, so that the measuring beams 31 of the two side measuring assemblies are respectively irradiated on the wheel center marks 11 of the corresponding light reflecting plates 1, meanwhile, the reference beam 511 emitted by the reference laser 51 is irradiated to the reference light reflecting point 53, and the beam reflected by the reference light reflecting point 53 returns to the reference beam hole 22, at this time, the reference plane of the support plate 2 is parallel to the XZ plane of the coordinate system of the whole vehicle, and the reference beam 521 is parallel to the Y axis of the coordinate system of the whole vehicle. And the Y-direction adjusting hand wheel is screwed, so that the positioning beam 521 emitted by the positioning laser 52 is irradiated in the circle of the wheel center mark 11, and at the moment, the measuring beam 31, the support plate 2 and the positioning beam 521 form an isosceles right triangle, namely, the distance from the measuring beam hole 21 to the wheel center mark 11 is the same as the distance from the measuring beam hole 21 to the positioning beam hole 23. The measuring datum is accurately established through the cooperation of a datum laser 51 fixed on the left support plate 2 and a datum reflecting point 53 on the right support plate 2, the distance between the support plate 2 and the reflecting plate 1 is controlled through a positioning laser 52, the length of a light path is accurately controlled, and a foundation is provided for the accurate measurement of the toe-in angle and the camber angle.

And S3, turning on the measuring laser, referring to fig. 12, irradiating the measuring beam 31 emitted by the measuring laser at the wheel center mark through the measuring beam hole 21 to form a first reflected beam 32, forming a second reflected beam 33 by the first reflected beam 32 after passing through the reflecting surface 61 of the reflecting block 6, irradiating the second reflected beam 33 onto the scale disc 24 at the end part of the supporting plate 2, and determining the toe-in angle and the camber angle of the vehicle through the reading on the scale disc 24. Because the measuring beam hole 21 is in a T shape, the cross section of the secondary reflected beam 33 is also in a T shape, and two mutually perpendicular line segments of the T shape point to the toe-in angle reading area 241 and the camber angle 242 reading area respectively, so that accurate angle values can be read conveniently. In order to avoid interference, reference laser 51 and positioning laser 52 are switched off during the measurement.

The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims

1. The utility model provides a toe angle and camber angle measuring device before vehicle, is including being fixed in the measuring component who waits to examine the vehicle both sides respectively, its characterized in that: the measuring assembly comprises a reflector (1), a support plate (2), a laser assembly (3) and an adjusting assembly (4), the reflector (1) is fixed on a wheel, the plane of the reflector (1) is vertical to the axis of the wheel, and a wheel center mark (11) is arranged at the position of the reflector (1) corresponding to the axis of the vehicle;

the laser assembly (3) comprises a measuring laser, the measuring laser is fixed on the side face, far away from the vehicle to be detected, of the supporting plate (2), a measuring beam hole (21) for a measuring beam (31) of the measuring laser to penetrate through is formed in the supporting plate (2), and the side face, close to the vehicle to be detected, of the supporting plate (2) is a reference surface;

the utility model discloses a vehicle toe-in angle and camber angle measuring device, including backup pad (2), measuring laser instrument, backup pad (2) are fixed in adjusting part (4), can realize backup pad (2) position adjustment through adjusting part (4), the position that the reference surface of backup pad (2) is close to measuring beam hole (21) is equipped with reflection of light piece (6), be equipped with on reflection of light piece (6) and personally submit reflection of light face (61) of 45 contained angles with the reference, backup pad (2) tip that this reflection of light face (61) orientation is equipped with calibrated scale (24) perpendicular with the reference surface, calibrated scale (24) are equipped with horizontal toe-in angle reading district (241) and vertical camber angle reading district (242), and measuring beam (31) that measuring laser sent passes measuring beam hole (21) on backup pad (2) back reflection of light piece (6) through reflector panel (1) on the wheel, then reflect to calibrated scale (24), confirm vehicle toe-in front and camber angle through the reading on calibrated scale (24).

2. The vehicle toe-angle and camber-angle measuring device according to claim 1, wherein: measuring beam hole (21) are "T" style of calligraphy, including horizontal bar hole and middle part and horizontal bar hole through connection's vertical bar hole, the crossing line of reflection of light face (61) and base face is parallel with vertical bar hole.

3. The vehicle toe and camber angle measuring device according to claim 1 or 2, characterized in that: the front end part and the rear end part of the reflector (1) are respectively hinged and fixed with a first clamping jaw (12) and a second clamping jaw (13), a spring (14) is connected between the first clamping jaw (12) and the second clamping jaw (13), and inward pressure is provided through the spring (14).

4. The vehicle toe and camber angle measuring device according to claim 1 or 2, characterized in that: the wheel center mark positioning device is characterized by further comprising a positioning assembly (5), wherein the positioning assembly (5) comprises a positioning laser (52) and a reference laser (51) fixed on the supporting plate (2) on one side, a reference reflection point (53) corresponding to the position of the reference laser (51) is arranged on the supporting plate (2) on the other side, a positioning beam hole (23) and a reference beam hole (22) corresponding to beams emitted by the positioning laser (52) and the reference laser (51) are arranged on the supporting plate (2), and the distance from the measuring beam hole (21) to the wheel center mark (11) is the same as the distance from the measuring beam hole (21) to the positioning beam hole (23).

5. The vehicle toe and camber angle measuring device according to claim 1 or 2, characterized in that: the adjusting component (4) comprises a base (44), and an X-direction adjusting component (41), a Y-direction adjusting component (42) and a Z-direction adjusting component (43) which are fixed on the base (44),

the X-direction adjusting assembly (41) comprises an X-direction sliding rail (411), an X-direction sliding block (412) and an X-direction lead screw (413), the X-direction sliding rail (411) is arranged on the upper surface of the base (44), and the X-direction sliding block (412) moves along the X-direction sliding rail (411) under the driving of the X-direction lead screw (413);

the Y-direction adjusting assembly (42) comprises a Y-direction sliding rail (421), a Y-direction sliding block (422) and a Y-direction lead screw (423), the Y-direction sliding rail (421) is arranged on the upper surface of the X-direction sliding block (412), the Y-direction sliding rail (421) is perpendicular to the X-direction sliding rail (411), and the Y-direction sliding block (422) moves along the Y-direction sliding rail (421) under the driving of the Y-direction lead screw (423);

the Z-direction adjusting assembly (43) comprises an upright post (431), the lower end of the upright post (431) is fixedly connected with the Y-direction sliding block (422), and a guide sleeve (25) in sliding fit with the upright post (431) and a locking screw (432) for locking the position of the guide sleeve (25) are arranged on the supporting plate (2).

6. The vehicle toe and camber angle measuring device according to claim 5, wherein: the base (44) is rectangular, one of four corners is provided with a first supporting leg (441) with fixed height, and the other three are provided with second supporting legs (442) with adjustable height.

7. The vehicle toe and camber angle measuring device according to claim 1 or 2, characterized in that: the wheel center mark (1) is in a cross shape, and the center of the wheel center mark is circular.

8. A method for measuring a toe angle and an camber angle of a vehicle, which is characterized in that the device for measuring the toe angle and the camber angle of the vehicle according to any one of claims 1 to 7 is adopted to measure the toe angle and the camber angle of the vehicle, and comprises the following steps:

s1, fixing a reflector (1) on a wheel, and adjusting the position of the reflector (1) to enable the axis of the wheel to pass through a wheel center mark (11);

s2, adjusting the position of the support plate (2) through the adjusting assembly (4) to enable the reference surface of the support plate (2) to be parallel to an XZ plane of the whole vehicle coordinate system;

s3, the measuring laser is turned on, measuring beams (31) emitted by the measuring laser irradiate the wheel center mark (11) through the measuring beam hole (21) to form a first reflected beam (32), the first reflected beam (32) is reflected by the reflecting surface (61) of the reflecting block (6) to form a second reflected beam (33), the second reflected beam (33) irradiates the dial (24) at the end part of the supporting plate (2), and the toe angle and the camber angle of the vehicle are determined through readings on the dial (24).