CN112578349A

CN112578349A - Vehicle calibration equipment

Info

Publication number: CN112578349A
Application number: CN202011374361.4A
Authority: CN
Inventors: 刘克然; 杨显平; 吴凯; 金翔宇
Original assignee: Shenzhen Yunjia Intelligent Technology Co Ltd
Current assignee: Shenzhen Yunjia Intelligent Technology Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-03-30

Abstract

The invention discloses a vehicle calibration device, which comprises a calibration bracket, a centering clamp and a first laser, wherein the calibration bracket is provided with a calibration disc for laser line projection, and the calibration disc is provided with a calibration line; the calibration line is positioned in the middle of the calibration support, and the extension line of the calibration line is intersected with the center line of the calibration support; two wheel positioning parts of the centering fixture can be slidably arranged on the base and used for positioning two opposite wheels in the transverse direction of the vehicle, and the synchronization mechanism is arranged between the two wheel positioning parts; the first laser is mounted on the base at a location intermediate between the two wheel alignment members for emitting a first laser beam extending longitudinally along the vehicle, the two wheel alignment members being symmetrical about the first laser beam. The calibration device can finish calibration and calibration of alignment of the center line of the calibration bracket and the longitudinal center line of the vehicle, so that the alignment accuracy of the calibration bracket and the longitudinal center line of the vehicle is higher, the calibration operation is simple and convenient, and the calibration efficiency is improved.

Description

Vehicle calibration equipment

Technical Field

The invention relates to the technical field of vehicle calibration, in particular to vehicle calibration equipment.

Background

The automatic Driving of the automobile is a future trend, and ADAS (Advanced Driving Assistance System) is a necessary way for the automatic Driving of the automobile. At the beginning of the ADAS technology being applied to luxury vehicles, automobile manufacturers began to gradually penetrate to medium-grade and small-sized vehicles due to the gradual maturity of the technology and the declining trend of the product price. The number of cars with ADAS technology worldwide will be very large in the future, so the after-market of cars will also need to launch ADAS calibration services. The calibration of the radar and camera modules is smoothly and quickly completed by a user, so that the ADAS function is recovered to be normal, and the driving safety of the user is ensured. Before the ADAS calibration is executed, the calibration of the longitudinal center line of the vehicle is an indispensable step, then the alignment of the center line of the calibration support and the longitudinal center line of the vehicle is ensured, the mutual perpendicularity between the calibration support and the longitudinal center line of the vehicle is ensured, the placement distance between the calibration support and the measurement reference is measured by taking the center of a front bumper or a front wheel of the vehicle as a distance measurement reference, and the calibration of a radar module and a camera module is completed quickly.

The existing vehicle longitudinal center line calibration equipment has the phenomena of low efficiency, inaccuracy and the like in calibrating the vehicle longitudinal center line, so that the center position of the calibration support is inaccurate in alignment and calibration with the vehicle longitudinal center line.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, an object of the present invention is to propose a vehicle calibration device comprising:

the calibration bracket is provided with a calibration disc for laser line projection, and the calibration disc is provided with a calibration line; the calibration line is positioned in the middle of the calibration support, and the extension line of the calibration line is intersected with the center line of the calibration support;

the centering fixture is provided with a base, two wheel positioning parts and a synchronous mechanism, wherein the two wheel positioning parts can be slidably arranged on the base and used for positioning two opposite wheels in the transverse direction of the vehicle, and the synchronous mechanism is connected between the two wheel positioning parts so as to enable the two wheel positioning parts to synchronously move oppositely or reversely in the transverse direction of the vehicle relative to the base;

the first laser is arranged on the base and positioned in the middle between the two wheel positioning parts, is used for emitting a first laser beam extending along the longitudinal direction of the vehicle and projecting the first laser beam to the calibration disc to form a linear laser line, and the two wheel positioning parts are symmetrical relative to the first laser beam.

Preferably, according to an embodiment of the present invention, the calibration bracket includes:

the center line of the adjustable main frame extends along the height direction of the adjustable main frame and is superposed with the center line of the calibration support;

the guide rail is arranged on the adjustable main frame in a lifting manner, the length direction of the guide rail is perpendicular to the height direction of the adjustable main frame, and the calibration line is perpendicular to the central line of the guide rail in the length direction;

and the tape measure mechanism is arranged on the guide rail, can move along the guide rail and is used for being connected to the centering clamp so as to measure the distance between the adjustable main frame and the center of the automobile hub.

Preferably, according to an embodiment of the present invention, the adjustable main frame includes an adjusting seat, the calibration plate is disposed on the adjusting seat, a plurality of adjusting legs are connected to the adjusting seat through threads, and the adjusting legs are disposed along a height direction of the adjusting seat.

Preferably, according to an embodiment of the present invention, the calibration disc is obliquely disposed on the adjustment seat, and a surface facing away from the adjustment seat has a plurality of angle scales, and the calibration line and the angle scales are located on the same plane.

Preferably, according to an embodiment of the present invention, a marking point is located below the calibration line, a 90 degree scale line is located on the angle scale, and the marking point, the 90 degree scale line and the calibration line are located on the same straight line.

Preferably, according to an embodiment of the present invention, a level gauge is disposed on the guide rail, and is used for detecting whether the pitch direction and the roll direction of the calibration bracket are horizontally disposed.

Preferably, according to one embodiment of the present invention, the tape measure mechanism comprises:

a sliding plate provided on the guide rail to move in a length direction of the guide rail;

a tape measure connected to the slider plate for movement therewith;

the locking assembly is arranged on the sliding plate and can be switched between a locking state and a releasing state; when the locking assembly is in a locking state, the sliding plate is locked and fixed on the guide rail; the sliding plate is slidable on the guide rail when the locking assembly is in a released state.

Preferably, according to one embodiment of the present invention, the locking assembly includes:

a locking member provided on the sliding plate to be switched between a locked state and a released state;

the connector clip is located retaining member below or top for support lean on or keep away from the retaining member, so that the retaining member is in locking state or release state.

Preferably, according to one embodiment of the invention, the guide rails comprise at least a first guide rail mounted on the adjustable frame and a second guide rail provided at one end of the first guide rail and pivotable between a collapsed position and an expanded position;

when the second guide rail is located at the folding position, the second guide rail is overlapped with the first guide rail, and when the second guide rail is located at the unfolding position, the second guide rail and the first guide rail are arranged in a straight line.

Preferably, according to an embodiment of the present invention, the guide rail is provided with a pivot assembly, the pivot assembly includes a first connecting piece provided on the first guide rail and a second connecting piece provided on the second guide rail, and the first connecting piece and the second connecting piece are adjacently arranged and are pivoted by a pivot shaft.

Preferably, according to an embodiment of the present invention, a fastening member is disposed on the first rail, a locking member is disposed on the second rail, and when the first rail and the second rail are overlapped, the fastening member is engaged with the locking member to lock the first rail and the second rail.

Preferably, according to one embodiment of the present invention, the wheel alignment member includes:

the wheel face positioning piece is arranged on the base, can slide along the transverse direction of the vehicle and is used for stopping and positioning the wheel face of the wheel;

the wheel side positioning piece is arranged on the wheel surface positioning piece, can move along with the wheel surface positioning piece and is used for stopping and positioning the wheel side of the wheel;

the wheel side positioning member is pivotable about a first axis between a stowed position and a deployed position;

when the wheel positioning piece is positioned at the unfolding position, a preset included angle for clamping a wheel is formed between the wheel side positioning piece and the wheel surface positioning piece;

when the wheel positioning piece is located at the folding position, the wheel side positioning piece is parallel to and close to the wheel face positioning piece.

Preferably, according to an embodiment of the present invention, the wheel alignment member further includes:

the first locking piece is arranged on the wheel surface positioning piece and can be switched between a locking state and an unlocking state;

when first retaining member is in locking state, wheel setting element with the base locking is fixed, when first retaining member is in the unblock state, wheel setting element is for the base is followed the vehicle is transversely slidable.

Preferably, according to an embodiment of the present invention, a threaded hole is formed in the base, and a sliding hole is formed in the wheel surface positioning member, and the sliding hole extends in the lateral direction of the vehicle;

the first locking member includes:

one end of the screw penetrates through the sliding hole and then is in threaded connection with the threaded hole;

the pressing operation piece is provided with an operation end and a connecting end, the operation end is suitable for being held and operated by a user, the connecting end is provided with an eccentric part, and the eccentric part is pivoted with the other end of the screw rod;

the pressure pad is slidably arranged on the screw in a penetrating manner and is positioned between the wheel positioning piece and the eccentric part; when the operation end is pressed, the eccentric part applies pressure to the pressure pad, so that the wheel positioning piece and the base are pressed and fixed by the pressure pad.

Preferably, according to an embodiment of the present invention, the synchronization mechanism includes:

the middle part of the pivoting arm is pivoted with the base;

one end of the first connecting rod is pivoted with one end of the pivoting arm;

one end of the second connecting rod is pivoted with the other end of the pivoting arm, and the length of the second connecting rod is equal to that of the first connecting rod;

the first push-pull rod extends transversely along the vehicle, one end of the first push-pull rod is pivoted with one end of the first connecting rod, and the other end of the first push-pull rod is connected with one of the two wheel positioning parts;

the second push-pull rod extends transversely along the vehicle, one end of the second push-pull rod is pivoted with one end of the second connecting rod, the other end of the second push-pull rod is connected with the other of the two wheel positioning parts, and the length of the second push-pull rod is equal to that of the first push-pull rod.

Preferably, according to an embodiment of the present invention, the vehicle calibration apparatus further includes a second laser, a sliding seat and a second locking member, the sliding seat is disposed on the wheel positioning member and is slidable along the longitudinal direction of the vehicle, and the second locking member is disposed on the sliding seat and is used for selectively locking and fixing the sliding seat and the wheel positioning member at a desired position; the second laser is pivotally arranged on the sliding seat and used for emitting a second laser beam to the center of the wheel hub, a clamping groove suitable for hanging the tape measure is formed in the sliding seat, and the clamping groove and the second laser are located at the same position in the longitudinal direction of the vehicle.

Preferably, according to an embodiment of the present invention, a shielding cover is disposed on the base, and the shielding cover is disposed outside the synchronization mechanism.

Preferably, according to an embodiment of the present invention, the adjustable main frame further includes a lifting device, and the lifting device is disposed on the adjusting seat and fixed to the guide rail, so as to drive the guide rail to move vertically;

the lifting device comprises:

the hollow seat is fixed on the adjusting seat;

the sliding rod is fixed on the adjusting seat and is accommodated in the hollow seat;

the lifting seat is arranged in the hollow seat and sleeved on the sliding rod in a lifting manner, and the guide rail is fixed with the lifting seat;

and the driving piece is arranged on the hollow seat, is in transmission connection with the lifting seat and is used for driving the lifting seat to move relative to the hollow seat.

Preferably, according to an embodiment of the present invention, the lifting seat has a transmission rack, the hollow seat has a locking seat, the driving member includes a crank and a gear provided on the crank to rotate with the crank, the crank passes through the locking seat and extends into the hollow seat, the gear is engaged with the transmission rack to drive the lifting seat to move, and the locking seat is used to lock and fix the crank to limit the rotation of the crank.

The vehicle calibration equipment provided by the invention drives the two wheel positioning parts to clamp and position the two wheels of the vehicle through the synchronous mechanism on the centering fixture, the first laser arranged between the two wheel positioning parts can emit a first laser beam along the longitudinal center line of the vehicle, so that the first laser beam calibrates the longitudinal center line of the vehicle, then the calibration support is moved to the front of the vehicle, so that the first laser beam can irradiate on the calibration disc to form a linear laser line, the calibration support is adjusted, the calibration line on the calibration disc is mutually overlapped with the linear laser line projected on the calibration disc, and the calibration of the alignment of the center line of the calibration support and the longitudinal center line of the vehicle is completed, so that the alignment accuracy of the calibration support and the longitudinal center line of the vehicle is higher, the calibration operation is simple and convenient, and the calibration efficiency is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a vehicle calibration apparatus provided in an embodiment of the present invention;

FIG. 2 is a schematic view of a centering fixture in use according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a calibration bracket provided in an embodiment of the present invention;

FIG. 4 is an exploded view of a calibration bracket provided in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a calibration plate provided in an embodiment of the present invention;

fig. 6 is an exploded view of a lifting device provided in an embodiment of the present invention;

FIG. 7 is a schematic structural view of a guide rail, tape measure mechanism and pivot assembly provided in an embodiment of the present invention;

FIG. 8 is a sectional view A-A shown in FIG. 7;

FIG. 9 is an enlarged view of portion A of FIG. 8;

FIG. 10 is an exploded view of a pivot assembly provided in an embodiment of the present invention;

FIG. 11 is an exploded view of the fastener and the locking member provided in the embodiment of the present invention;

FIG. 12 is a schematic structural view of a centering fixture provided in an embodiment of the present invention;

FIG. 13 is an exploded view of a centering fixture provided in an embodiment of the present invention;

FIG. 14 is an enlarged view of portion B of FIG. 13;

FIG. 15 is a schematic structural view of another perspective of a centering fixture provided in an embodiment of the present invention;

FIG. 16 is an enlarged view of the portion C shown in FIG. 15;

FIG. 17 is a schematic diagram of a wheel alignment element and a second laser provided in an embodiment of the present invention;

figure 18 is an exploded view of a wheel alignment member and a second laser provided in an embodiment of the present invention.

The reference numbers illustrate:

10. calibrating a bracket; 101. a centerline;

11. a calibration tray; 111. angle scales; 112. calibrating a line; 113. marking points;

12. an adjustable main frame; 121. an adjusting seat; 122. adjusting the support legs;

13. a lifting device; 131. a hollow seat; 1311. a through groove; 132. a slide bar; 133. a lifting seat; 1331. a rack; 134. a drive member; 1341. a crank; 1342. a gear; 135. a locking seat; 1351. a bolt; 1352. a through groove; 1353. a through hole; 1354. a base body;

14. a guide rail; 141. a first guide rail; 142. a second guide rail; 143. a chute; 144. a stopper wall;

15. a tape measure mechanism; 151. a sliding plate; 152. a tape measure; 153. a locking assembly; 154. a locking member; 1541. a first stopper portion; 1542. a second stopper portion; 1543. opening the gap; 155. a plug-in unit;

16. a pivot assembly; 161. a first connecting member; 162. a second connecting member; 163. a pivotal shaft;

17. a level gauge;

18. a clamping and fixing piece; 181. a projection;

19. a locking member; 191. a cylindrical portion; 192. a limiting ball; 193. a limiting space;

20. centering the clamp; 201. a guide rail; 202. a slider;

21. a wheel alignment member; 211. a wheel face positioning piece; 2110. a slide hole; 212. wheel side positioning members; 2121. a pivoting seat; 2122. positioning a rod; 213. a first locking member; 2131. a screw; 2132. a pressure application operating member; d10, an operation end; d11, a connecting end; d12, eccentric portion; 2133. a pressure pad;

22. a first laser; 221. a first laser beam;

23. a base; 231. a transverse carrier plate; 2311. a threaded hole; 232. a longitudinal support rod; 233. a moving wheel; 234. an isolation cover;

24. a synchronization mechanism; 241. a pivoting arm; 242. a first link; 243. a second link; 244. a first push-pull rod; 245. a second push-pull rod;

25. a second laser; 251. a second laser beam;

26. a sliding seat; 261. a card slot;

27. a bin cover;

28. a toggle switch;

29. a second locking member;

30. and (7) wheels.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," "radial," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following describes a vehicle calibration apparatus of an embodiment of the present invention in detail with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2, the vehicle calibration device provided by the present invention includes a calibration bracket 10, a centering fixture 20 and a first laser 22, wherein the calibration bracket 10 is provided with a calibration disc 11 for laser line projection, and the calibration disc 11 is provided with a calibration line 112; the calibration line 112 is located in the middle of the calibration support 10, an extension line of the calibration line 112 intersects with the center line 101 of the calibration support 10, and the center line 101 of the calibration support is located in the middle of the calibration support and extends in the height direction of the calibration support 10; the centering fixture 20 has a base 23, two wheel alignment members 21, and a synchronization mechanism 24, wherein the two wheel alignment members 21 are slidably disposed on the base 23 for aligning two opposite wheels 30 in the lateral direction of the vehicle, and the synchronization mechanism 24 is connected between the two wheel alignment members 21 for synchronously moving the two wheel alignment members 21 in the lateral direction of the vehicle or in the opposite direction with respect to the base 23; the first laser 22 is mounted on the base 23 and located at a middle position between the two wheel alignment members 21 for emitting a first laser beam 221 extending along the longitudinal direction of the vehicle, and projecting the first laser beam onto the calibration disk 11 to form a linear laser line, wherein the two wheel alignment members 21 are symmetrical with respect to the first laser beam 221.

The first laser beam 221 is projected on a plane to form a linear laser line, that is, the first laser beam 221 is irradiated on the surface of the calibration disc 11 to form a laser straight line, it can be understood that the position and angle of the straight line formed by the first laser beam 221 on the calibration disc 11 can be directly viewed through the angle scale 111 on the surface of the calibration disc 11, and the calibration support 10 is adjusted by the position and angle of the first laser beam 221 irradiated on the calibration disc 11, so that the calibration line 112 on the calibration support 11 is overlapped with the linear laser line formed by the first laser beam 221 projected on the calibration disc 11, so as to complete calibration of the calibration support 10, and the center line 101 of the calibration support 10 is aligned with the longitudinal center line of the vehicle.

The vehicle calibration device provided by the invention drives the two wheel positioning parts 21 to clamp and position the two wheels 30 of the vehicle through the synchronous mechanism 24 on the centering fixture 20, during and after clamping and positioning the wheels 30, the first laser beam 221 emitted by the first laser 22 arranged between the two wheel positioning parts 21 is always positioned at the central position of the two wheel positioning parts 21, so that after clamping and positioning the wheels 30, the first laser beam 221 emitted by the first laser 22 can be superposed with the longitudinal central line of the vehicle, so as to calibrate the longitudinal central line of the vehicle by using the first laser beam 221, then the calibration bracket 10 is moved to the front of the vehicle, so that the first laser beam 221 can irradiate the calibration disk 11 to form a linear laser line, the calibration bracket 10 is adjusted, so that the calibration line 112 on the calibration disk 11 is superposed with the linear laser line projected on the calibration disk 11, therefore, the calibration and calibration of the alignment of the center line 101 of the calibration support 10 and the longitudinal center line of the vehicle are completed, the alignment accuracy of the calibration support 10 and the longitudinal center line of the vehicle is higher, the calibration operation is simple and convenient, and the calibration efficiency is improved.

Referring to fig. 3 and 4, the calibration support 10 includes an adjustable main frame 12, a guide rail 14, and a tape measure mechanism 15, a central line of the adjustable main frame 12 extends along a height direction of the adjustable main frame 12 and coincides with a central line 101 of the calibration support 10, the guide rail 14 is disposed on the adjustable main frame 12 in a liftable manner, a length direction of the guide rail 14 is perpendicular to the height direction of the adjustable main frame 12, a calibration line 112 is perpendicular to the central line of the guide rail 14 in a length direction, that is, the central line of the guide rail 14 in the length direction extends along the length direction of the guide rail 14 and is located in a middle position of the guide rail, and the calibration line 112 is perpendicular to the central line of the guide rail 14 in the length direction and may be perpendicular to each other. A tape measure mechanism 15 is provided on the rail 14 and is movable along the rail 14 for attachment to the centering fixture 20 for measuring the distance of the adjustable frame 12 from the hub centre of the wheel 30. After the central line 101 of the calibration support 10 is aligned with the longitudinal central line of the vehicle, the length direction of the guide rail 14 is perpendicular to the longitudinal central line of the vehicle, so that the calibration support 10 is ensured to be perpendicular to the longitudinal central line of the vehicle, and then the central line of a front bumper or a front wheel of the vehicle is used as a distance measuring standard, the parallelism between the guide rail 14 and a measuring standard is calibrated, so that the placement distance between the calibration support 10 and the measuring standard is accurately measured, further, the calibration and installation of a radar module and a camera module can be accurately completed, and the installation position parameters read after the radar module, the camera module and other modules are installed are ensured to be within a threshold range.

Wherein the adjustable main frame 12 can adjust the height of the guide rail 14, the tape measure mechanism 15 can slide on the guide rail 14 and can be connected with the centering clamp 20, so that the position of the calibration bracket 10 is limited by the tape measure mechanism 15 and the distance of the center of the vehicle hub can be measured together with the centering clamp 20.

Specifically, adjustable body frame 12 is including adjusting seat 121, and on calibration disc 11 located adjusting seat 121, threaded connection has a plurality of regulation stabilizer blades 122 on adjusting seat 121, adjusts the support and sets up along the direction of height who adjusts seat 121, through rotatory regulation stabilizer blade 12 to adjust the height and the angle of adjusting seat 11.

In this embodiment, when the adjustable main frame 12 adjusts the pitch angle and the roll angle by using the adjusting support legs 122, the adjusting support legs 122 penetrate through the adjusting seat 121 and can abut against the ground, in the calibration process, the adjusting support legs 122 can stably place the calibration support 10 on the ground, and then the adjusting support legs 122 are adjusted according to the angle of the laser beam on the calibration disc 11, so that the adjusting support legs 122 drive the adjustable main frame 12 to adjust the angle; it can be understood that the angle can be finely adjusted by adjusting the support legs 122, so that the calibration of the calibration support 10 and the longitudinal center line of the vehicle is more convenient, the accuracy is higher, and the calibration is more accurate.

The four adjusting legs 122 are respectively located at four diagonal points of the adjusting base 121, and when the adjusting base 121 is adjusted, the heights of the four diagonal points can be adjusted, so that the angles of the first laser beam 221 and the calibration disc 11 are adjusted to be more accurate, and the first laser beam 221 coincides with the calibration line 112.

Referring to fig. 4 and 5, the calibration disc 11 is obliquely arranged on the adjustment seat 121, and a surface facing away from the adjustment seat 121 is provided with a plurality of angle scales 111, and the calibration line 112 and the angle scales 111 are located on the same plane.

Furthermore, a marking point 113 is arranged below the calibration line 112, a 90-degree scale line is arranged on the angle scale 111, and the marking point 113, the 90-degree scale line and the calibration line 112 are positioned on the same straight line. When the first laser beam 221 is projected onto the calibration disc 11, the corresponding situation between the linear laser line formed on the calibration disc 11 by the first laser beam 221 and the angle scale 111 is observed, so that the degree of the deviation angle between the linear laser line and the calibration line 112 is conveniently known. In this embodiment, the calibration plate 11 is marked with a plurality of different angle scales 111, and the angle scale 111 marked on the calibration line 112 is 90 degrees, that is, when the first laser beam 221 irradiates on the calibration plate and coincides with the calibration line 112, the first laser beam 221 indicates a position at an included angle of 90 degrees, and simultaneously the angle scale 111 where the first laser beam 221 is located can be quickly read to be 90 degrees, so as to determine the roll angle of the calibration bracket 10, and when the lower end point of the straight line formed by the first laser beam 221 is aligned with the mark point 113, so as to determine the angle alignment in the pitch direction; it can be understood that when the first laser beam 221 irradiates the calibration plate 11 at a position deviated by 90 degrees and the lower end point of the straight line formed by the first laser beam 221 is not aligned with the marking point 113, the roll angle and the pitch angle of the adjusting seat 121 can be adjusted by the adjusting leg 122, so as to align the laser beam with the longitudinal scale mark and the marking point 113, so that the calibration line 112 and the marking point 113 coincide with the first laser beam 221, thereby completing the calibration of the calibration bracket 10 with the longitudinal center line of the vehicle.

Specifically, the guide rail 14 is provided with a level gauge 17 for detecting whether the guide rail 14 and the adjustable main frame 12 are horizontally arranged in the pitch direction and the roll direction. In the present embodiment, when the adjustment is performed by adjusting the supporting leg 122, the horizontal position of the calibration stand 10 can be determined according to the level 17 at the same time, so that the calibration stand 10 can be kept in the horizontal position and the first laser beam 221 is aligned with the longitudinal scale mark, so that the calibrated position is more accurate.

Referring to fig. 6, the adjustable main frame 12 further includes a lifting device 13, and the lifting device 13 is disposed on the adjusting base 121 and fixed to the guide rail 14 for driving the guide rail 14 to move vertically. The height of the guide rail 14 is adjusted through the lifting device 13, so that the position of the tape measure mechanism 15 and the hub center position of the wheel 30 are in the same straight line, the position of the tape measure mechanism 15 is more accurate, and the adjustment is more convenient and simpler.

Further, the lifting device 13 includes a hollow seat 131, a sliding rod 132, a lifting seat 133 and a driving element 134, wherein the hollow seat 131 is fixed on the adjusting seat 121; the sliding rod 132 is fixed on the adjusting seat 121 and is accommodated in the hollow seat 131; the lifting seat 133 is arranged in the hollow seat 131 and is sleeved on the sliding rod 132 in a lifting manner, and the guide rail 14 is fixed with the lifting seat 133; the driving member 134 is mounted on the hollow seat 131 and is in transmission connection with the lifting seat 133 for driving the lifting seat 133 to move relative to the hollow seat 131.

Further, the lifting seat 133 has a transmission rack 1331 thereon, the driving member 134 includes a crank 1341 and a gear 1342 provided on the crank 1341 to rotate with the crank 1341, and the gear 1342 is engaged with the transmission rack 1331 to drive the lifting seat 133 to move.

In this embodiment, when rising or lowering guide rail 14, make gear 1342 drive transmission rack 1331 through rotating crank 1341, make transmission rack 1331 drive lift seat 133 rise or reduce hollow seat 131 mutually, wherein, transmission rack 1331 extends at the direction of height of lift seat 133, be equipped with through slot 1311 in one side that hollow seat 131 is close to guide rail 14, it wears to establish in through slot 1311 to be equipped with the connecting seat on the lift seat 133, guide rail 14 passes through the connecting seat and links to each other with lift seat 133, make lift seat 133 in the lift in-process, can drive guide rail 14 and connecting seat and carry out elevating movement along through slot 1311, and then more simple and convenient at the in-process of adjusting guide rail 14.

Specifically, the hollow seat 131 is provided with a locking seat 135, the crank 1341 extends into the hollow seat 131 through the locking seat 135 to be connected with the gear 1342, and the locking seat 135 is used for locking and fixing the crank 1341 so as to limit the rotation of the crank 1341.

The locking seat 135 includes a seat body 1354 fixedly connected to the hollow seat 131, a through hole 1353 is provided on the seat body 1354, a crank 1341 is inserted into the through hole 1353 and extends into the hollow seat 131 to connect with the gear 1342, and the seat body 1354 has a through slot 1352 and a bolt 1351 perpendicular to the through slot 1352, the bolt 1351 passes through the through slot 1352, the through slot 1352 is located between two side ends of the seat body, a head end of the bolt 1351 can abut against one side end of the seat body 1354, and a screw of the bolt 1351 can rotatably pass through one side end of the seat body 1354 and the through slot 1352 and then is in threaded connection with the other side end of the seat body 1354. When the bolt 1351 is locked, two side ends of the seat body 1354 are close to each other, the distance between the through grooves 1352 is reduced, and the through holes 1353 are reduced at the same time, so that the locking seat 135 is pressed to abut against the crank 1341, and the locking seat 135 is fixed on the hollow seat 131, so that the crank 1341 cannot rotate and is locked, and meanwhile, the transmission rack 1331 and the lifting seat 133 are locked and fixed, so that the position of the guide rail 14 is limited, and the height adjustment of the guide rail 14 is completed.

Referring to fig. 7 to 9, the tape mechanism 15 includes a sliding plate 151, a tape 152, and a locking member 153, the sliding plate 151 being provided on the guide rail 14 to move in a length direction of the guide rail 14; the tape 152 is connected to the sliding plate 151 to move with the sliding plate 151; the locking member 153 is provided on the sliding plate 151 and is switchable between a locked state and a released state; when the locking assembly 153 is in the locking state, the sliding plate 151 is locked and fixed on the guide rail 14; when the locking assembly 153 is in the released state, the sliding plate 151 may slide on the guide rail 14.

In this embodiment, the tape 152 may be a fiber tape, a tape, or the like, and during calibration, the tape 152 may be pulled out and connected to a laser to position the calibration stand 10; the tape 152 may be suspended below the sliding plate 151, suspended above the sliding plate 151, or fixed to the side of the sliding plate 151 facing away from the guide rail 14; the locking assembly 153 is disposed on the sliding plate 151 and located on a side away from the guide rail 14, when the locking assembly 153 is in a locked state, the sliding plate 151 and the guide rail 14 can be clamped and locked by the locking assembly 153, and when the locking assembly 153 is in a locked state, the sliding plate 151 and the guide rail 14 can be unlocked and unlocked by the locking assembly 153.

In use, the locking assembly 153 can be switched to the release state, so that the sliding plate 151 and the guide rail 14 are unlocked, then the sliding plate 151 is pushed to move on the guide rail 14, so that the tape 152 can be approximately aligned with the side surface of the tire of the vehicle, and the locking assembly 153 is switched to the locking state, so that the sliding plate 151 can be locked and fixed on the guide rail 14, so that the positioning operation of the tape 152 is more convenient, and the calibration process is simpler and quicker.

Specifically, the locking assembly 153 includes a locking member 154 and a plug-in connector 155, and the locking member 154 is provided on the sliding plate 151 to be switched between a locked state and a released state; the plug member 155 is located below or above the locking member 154 to abut against or move away from the locking member 154 to place the locking member 154 in a locked state or a released state.

Here, the guide rail 14 is provided with two slide grooves 143, and the two slide grooves 143 are arranged in parallel to each other, the locking member 154 may be provided in any one of the slide grooves 143, when the plug 155 is positioned above the locking member 154, the locking member 154 may be provided in the lower slide groove 143, and when the plug 155 is positioned below the locking member 154, the locking member 154 may be provided in the upper slide groove 143. It will be appreciated that the locking member 154 and the plug 155 can move together with the sliding plate 151 when the sliding plate 151 is moved, and the sliding plate 151 and the guide rail 14 are fixedly locked by the locking member 154 and the plug 155 when the measuring tape 152 is moved to a correct position.

Further, the locking member 154 has a first stopping portion 1541 and a second stopping portion 1542 protruding in the radial direction, the first stopping portion 1541 is stopped in the sliding groove 143, and the second stopping portion 1542 is stopped on the sliding plate 151. In this embodiment, one side of the sliding slot 143 close to the sliding plate 151 has a stopping wall 144, the sliding plate 151 and the stopping wall 144 are located between the first stopping portion 1541 and the second stopping portion 1542, and the plug 155 is also located between the first stopping portion 1541 and the second stopping portion 1542, the plug 155 can move toward the locking member 154 to abut against the locking member 154, and can also move away from the locking member 154.

Furthermore, the first stopping portion 1541 is provided with a gap 1543 opposite to the inserting portion 155, and the inserting portion 155 is used for being inserted into or separated from the gap 1543, so that the locking member 154 locks and fixes or unlocks the sliding plate 151 and the guide rail 14. When the plug-in unit 155 moves towards the locking member 154, the plug-in unit is inserted into the notch 1543, and simultaneously the locking member 154 is pushed to move axially, the plug-in unit 155 is squeezed between the first stopping portion 1541 and the second stopping portion 1542, because the first stopping portion 1541 and the second stopping portion 1542 are in a fixed interval, the first stopping portion 1541 and the second stopping portion 1542 have squeezing force, the plug-in unit 155, the sliding plate 151 and the stopping wall 144 are clamped together, and the locking member 154 cannot rotate, thereby completing locking and fixing of the sliding plate 151 and the guide rail 14; when the plug 155 is moved away from the locking member 154, the plug 155 is separated from the notch 1543, so that there is no pressing force between the first stopper 1541 and the second stopper 1542, and the slide plate 151 and the rail 14 are unlocked and released; that is, in the locked state, the insertion member 155 is inserted into the slit 1543 to lock and fix the slide plate 151 and the guide rail 14, and in the released state, the insertion member 155 is disengaged from the slit 1543 to unlock and release the slide plate 151 and the guide rail 14.

Referring to fig. 7 and 10, the guide 14 includes at least a first rail 141 and a second rail 142, the first rail 141 being mounted to the adjustable frame 12, the second rail 142 being disposed at one end of the first rail 141 and being pivotable between a collapsed position and an extended position; when the second rail 142 is located at the folding position, the second rail 142 overlaps the first rail 141, and when the second rail 142 is located at the unfolding position, the second rail 142 and the first rail 141 are linearly arranged.

In this embodiment, when the first guide rail 141 and the second guide rail 142 are provided in plural, the first guide rail 141 and the second guide rail 142 may be foldable and unfoldable between two pairs, for example, two second guide rails 142 are connected to two ends of the first guide rail 141, and the two second guide rails 142 may be foldable toward the first guide rail 141 to an overlapping position, optionally, in some other embodiments, two second guide rails 142 or two first guide rails 141 may be relatively pivotable to an overlapping position, it can be understood that the first guide rail 141 and the second guide rail 142 may be foldable after being folded, and the plural first guide rails 141 or the plural second guide rails 142 may be foldable after being folded, so that the whole occupied space may be smaller.

When the calibration support 10 is used, the first guide rail 141 and the second guide rail 142 can be pivoted to the unfolding position relatively, so that the first guide rail 141 and the second guide rail 142 are positioned on the same straight line, then calibration operation is performed, and after the calibration support is used, the first guide rail 141 and the second guide rail 142 are pivoted to the folding position relatively, so that the first guide rail 141 and the second guide rail 142 are overlapped with each other, the overall occupied space of the calibration support 10 is smaller, folding and storage are more convenient, the structure is simple, and the use is more convenient.

Specifically, the guide rail 14 is provided with a pivot assembly 16, and the pivot assembly 16 connects the first guide rail 141 and the second guide rail 142, so that the first guide rail 141 and the second guide rail 142 can pivot relatively.

Further, the pivot assembly 16 includes a first link 161 disposed on the first rail 141 and a second link 162 disposed on the second rail 142, and the first link 161 is disposed adjacent to the second link 162 and pivotally connected to the pivot 163.

In this embodiment, the first connecting member 161 is fixed at one end of the first rail 141, the second connecting member 162 is located at one side of the first connecting member 161, when the second rail 142 is rotated, the second connecting member 162 is driven by the second rail 142 to rotate together, and when the second rail 142 is rotated to the folding position, the second connecting member 162 is rotated to the other side of the first connecting member 161, so that the unfolding and folding between the first rail 141 and the second rail 142 are simpler and more convenient, and the overall structure is simpler and more reliable.

Referring to fig. 7 and 11, the first rail 141 is provided with a fastener 18, the second rail 142 is provided with a locking member 19, and when the first rail 141 and the second rail 142 overlap, the fastener 18 is engaged with the locking member 19 to lock the first rail 141 and the second rail 142.

In this embodiment, after the first rail 141 and the second rail 142 are folded, the first rail 141 and the second rail 142 can be locked and fixed by the locking member 18 and the locking member 19, so that the first rail 141 and the second rail 142 have better stability and are more convenient to move. The locking member 19 includes two cylindrical portions 191 and two limiting balls 192, the two cylindrical portions 191 are disposed at an interval to define a limiting space 193, the two limiting balls 192 are respectively accommodated in the two cylindrical portions 191 and jointly protrude into the limiting space 193, the locking member 18 is configured as a protruding portion 181 having a transition arc surface, and the protruding portion 181 is configured to be embedded in the limiting space 193, so that the two limiting balls 192 abut against two sides of the protruding portion 181.

Referring to fig. 2, 17 and 18, the centering jig 20 includes a base 23 and a synchronizing mechanism 24, the synchronizing mechanism 24 being provided between the two wheel positioners 21 so as to move the two wheel positioners 21 in the vehicle transverse direction synchronously toward each other or in the opposite direction with respect to the base 23; and two second lasers 25, the two second lasers 25 being respectively disposed on the two wheel alignment members 21 and being movable with the wheel alignment members 21, for emitting second laser beams 251 respectively toward hub centers of two wheels 30 which are laterally opposite to each other on the vehicle.

In this embodiment, the base 23 may be placed on the ground or on a plane where the vehicle is located, the two wheel alignment members 21 are oppositely disposed on the base 23, the synchronization mechanism 24 is connected between the two wheel alignment members 21, and when one of the two wheel alignment members 21 moves along the lateral direction of the vehicle, the synchronization mechanism 24 may be used to drive the other of the two wheel alignment members 21 to move synchronously with respect to the base 23. And when one of the two wheel alignment members 21 moves laterally outward along the vehicle, the synchronization mechanism 24 drives the other of the two wheel alignment members 21 to move laterally outward synchronously at equal distances, so that the two wheel alignment members 21 can move synchronously in opposite directions. When one of the two wheel alignment members 21 moves inward along the lateral direction of the vehicle, the synchronization mechanism 24 drives the other of the two wheel alignment members 21 to move inward along the lateral direction of the vehicle at the same distance, so that the two wheel alignment members 21 can move in opposite directions.

It can be understood that after the two wheel alignment members 21 are aligned with the wheel 30, the laser beam emitted by the second laser 25 can be emitted to the hub center of the wheel 30, so that the hub center of the wheel 30 can be calibrated by the laser beam, and the calibration is reliable and accurate, and the operation is simple.

Further, the wheel positioning member 21 includes a wheel surface positioning member 211 and a wheel side positioning member 212, and the wheel surface positioning member 211 is provided on the base 23 and is slidable in the lateral direction of the vehicle, and is used for performing stopper positioning on the wheel surface of the wheel 30; the wheel side positioning member 212 is provided on the wheel surface positioning member 211 and is movable with the wheel surface positioning member 211 for stopper positioning of the wheel side of the wheel 30.

Wherein the wheel side positioning member 211 can slide relative to the base 23 along the longitudinal direction of the vehicle, and the wheel side positioning member 212 is provided on the wheel side positioning member 211 to move with the wheel side positioning member 211, and the distance between the wheel side positioning member 212 and the wheel side of the wheel 30 can be adjusted by sliding the wheel side positioning member 211 along the longitudinal direction of the vehicle, and when the wheel side positioning member 212 abuts against the wheel side of the wheel 30, the wheel side positioning member 212 can be used to position the wheel side of the wheel 30. The wheel surface positioning piece 211 can abut against the wheel surface of the wheel 30 by moving the base 23, and the wheel surface of the wheel 30 of the wheel surface positioning piece 211 is further used for positioning.

Further, the wheel side positioning member 211 extends in the vehicle lateral direction, the wheel side positioning member 212 extends in the vehicle longitudinal direction, and a predetermined angle for sandwiching the wheel 30 is formed between the wheel side positioning member 212 and the wheel side positioning member 211, the predetermined angle being equal to an angle formed between the wheel face and the wheel side of the wheel 30. In the present embodiment, the wheel surface positioning element 211 and the wheel side positioning element 212 are long strips, for example, the wheel surface positioning element 211 and the wheel side positioning element 212 may be strip-shaped elements or rod-shaped elements, so that the wheel surface positioning element 211 and the wheel side positioning element 212 can be abutted against the wheel surface or the wheel side conveniently, and the contact area with the wheel surface or the wheel side is large, so as to perform reliable positioning.

Further, the wheel-side positioning member 212 is pivotable about a first axis between the stowed position and the deployed position; when the wheel side positioning member 21 is located at the deployed position, the wheel side positioning member 212 forms a predetermined included angle with the wheel face positioning member 211; when the wheel side positioning member 21 is located at the retracted position, the wheel side positioning member 212 is parallel to and close to the wheel face positioning member 211.

The wheel side positioning member 212 is rotatable between a retracted position and an extended position with respect to the wheel surface positioning member 211, so as to retract and extend the wheel side positioning member 212. When the wheel side positioning member 212 is rotated to the deployed position where the wheel 30 can be positioned by the wheel 30 positioning jig, the wheel side positioning member 212 forms a predetermined angle with the wheel surface positioning member 211. When the wheel-side positioning member 212 rotates from the extended position to the retracted position, the wheel-side positioning member 212 is parallel to and close to the wheel-side positioning member 211, and in the retracted position, the retracted position is small in size, so that the carrying and storage are convenient.

Further, the wheel side positioning element 212 includes a pivot seat 2121 and a positioning rod 2122, wherein the pivot seat 2121 is fixed on the wheel surface positioning element 211, as shown in the figure, the wheel surface positioning element 211 is a plate-shaped element, and the pivot seat 2121 is fixed at the outer end of the plate-shaped element. It will be appreciated that one end of the positioning rod 2122 is pivotally connected to the pivot mount 2121, and the positioning rod 2122 extends in the lateral direction of the vehicle, which is perpendicular to the longitudinal direction of the vehicle, and forms a predetermined angle with the wheel positioning element 211.

In this embodiment, the pivot seat 2121 is fixed to the wheel positioning element 211, and the positioning rod 2122 is pivoted to the pivot seat 2121, so that the positioning rod 2122 is conveniently formed into a pivotable structure. In addition, when the wheel side positioning element 212 is in the extended position, the positioning rod 2122 and the wheel side positioning element 211 form the predetermined included angle therebetween, and at this time, the positioning rod 2122 abuts against the wheel side of the wheel 30 to facilitate the wheel side positioning, and when the positioning rod 2122 rotates to be parallel to and close to the wheel side positioning element 211, the wheel side positioning element 212 is in the retracted state to facilitate the storage.

Referring to fig. 13 and 14, the wheel positioning member 21 further includes a first locking member 213, and the first locking member 213 is disposed on the wheel surface positioning member 211 and is switchable between a locking state and an unlocking state; when the first locking member 213 is in the locked state, the wheel positioning member 21 is locked to the base 23, and when the first locking member 213 is in the unlocked state, the wheel positioning member 21 is slidable relative to the base 23 in the lateral direction of the vehicle.

In this embodiment, the first locking member 213 is switched between the locking state and the unlocking state by operation, for example, when the wheel face positioning member 211 needs to be adjusted in a sliding manner, the first locking member 213 can be switched to the unlocking state, and in the unlocking state, the wheel face positioning member 211 can slide relative to the base 23, and at this time, the wheel face positioning member 211 can slide to a desired position along the lateral direction of the vehicle as needed. After the wheel-side positioning element 211 slides to the desired position, the wheel-side positioning element 212 abuts against the wheel side of the wheel 30, and the first locking element 213 is switched to the locking state, in which the wheel-side positioning element 211 and the base 23 are relatively fixed, so that the wheel-side positioning element 212 and the wheel side of the wheel 30 can be kept abutting against each other; it will be appreciated that the locking or unlocking of the wheel positioning member 211 by the first locking member 213 facilitates operation during positioning of the wheel 30 and ensures reliable positioning.

Preferably, the base 23 is provided with a threaded hole 2311, the wheel surface positioning piece 211 is provided with a sliding hole 2110, and the sliding hole 2110 extends along the transverse direction of the vehicle; the first locking piece 213 comprises a screw 2131, a pressing operation piece 2132 and a pressure pad 2133, and one end of the screw 2131 penetrates through the sliding hole 2110 to be in threaded connection with the threaded hole 2311; the pressing operation piece 2132 is provided with an operation end D10 and a connecting end D11, the operation end D10 is suitable for being held and operated by a user, the connecting end D11 is provided with an eccentric part D12, and the eccentric part D12 is pivoted with the other end of the screw 2131; the pressure pad 2133 is slidably arranged on the screw 2131 and located between the wheel alignment part 21 and the eccentric part D12; when the operating end D10 is pressed, the eccentric portion D12 presses the pressure pad 2133, so that the pressure pad 2133 presses and fixes the wheel alignment member 21 and the base 23.

In this embodiment, the lower end of the screw 2131 passes through the sliding hole 2110 on the wheel surface positioning element 211 and then is screwed into the threaded hole 2311 on the base 23, the upper end of the screw 2131 is pivoted to the eccentric portion D12 on the pressing operation element 2132, the pressing pad 2133 is inserted into the screw 2131 and located above the wheel surface positioning element 211, and the eccentric portion D12 is located above and contacts the pressing pad 2133.

When the locking state is required to be switched, the operating end D10 of the pressing operating element 2132 can be rotated in one direction, so that the high point on the eccentric portion D12 is rotated to be opposite to the pressing pad 2133, and thus, the high point on the eccentric portion D12 applies a downward pressure to the pressing pad 2133, so that the pressing pad 2133 presses the wheel surface positioning element 211 downward, and meanwhile, the screw 2131 drives the base 23 to press the wheel surface positioning element 211 upward, so that the wheel surface positioning element 211 and the base 23 are pressed and fixed relatively, which is the locking state.

When the unlocking state is required, the operating end D10 of the pressing member can be operated to rotate in the other direction, so that the low point on the eccentric portion D12 rotates to be opposite to the pressing pad 2133, and thus, since the distance from the low point on the eccentric portion D12 to the rotation center on the eccentric portion D12 is small, the pressure of the low point on the eccentric portion D12 to the pressing pad 2133 is small or no pressure, the pressing state between the wheel surface positioning member 211 and the base 23 is released, and the wheel surface positioning member 211 and the base 23 can slide relatively, which is the unlocking state.

Referring to fig. 12 and 13, the synchronizing mechanism 24 includes a pivoting arm 241, a first link 242, a second link 243, a first push-pull rod 244 and a second push-pull rod 245, wherein the middle portion of the pivoting arm 241 is pivotally connected to the base 23; i.e., the pivot arm 241 is rotatably mounted on the base 23 about a normal line passing through the center of the pivot arm 241 as a rotation axis. One end of the first link 242 is pivotally connected to one end of the pivoting arm 241, and one end of the second link 243 is pivotally connected to the other end of the pivoting arm 241; the first push-pull rod 244 extends in the vehicle longitudinal direction, one end of the first push-pull rod 244 is pivotally connected to one end of the first link 242, and the other end of the first push-pull rod 244 is connected to one of the two wheel 30 positioning assemblies. The second push-pull rod 245 extends in the vehicle longitudinal direction, one end of the second push-pull rod 245 is pivotally connected to one end of the second connecting rod 243, and the other end of the second push-pull rod 245 is connected to the other of the two wheel alignment members 21. The length of the second link 243 is equal to the length of the first link 242, and the length of the second push-pull rod 245 is equal to the length of the first push-pull rod 244.

In this embodiment, when the pivot arm 241 rotates around the axis passing through the center thereof, the two ends of the pivot arm 241 rotate in different directions, and since the two ends of the pivot arm 241 are respectively connected to the first connecting rod 242 and the second connecting rod 243, the first connecting rod 242 is connected to the wheel surface positioning element 211 of one wheel 30 positioning assembly through the first push-pull rod 244, and the second connecting rod 243 is connected to the wheel surface positioning element 211 of the other wheel 30 positioning assembly through the second push-pull rod 245, the two ends of the pivot arm 241 can drive the first connecting rod 242 and the second connecting rod 243 to move, the first connecting rod 242 drives the first push-pull rod 244 to move in the lateral direction of the vehicle, the second connecting rod 243 drives the second push-pull rod 245 to move in the lateral direction of the vehicle, and finally, the first push-pull rod 244 and the second push-pull rod 245 drive the wheel surface positioning elements 211 of the two wheel 30 positioning assemblies to slide towards each other or, synchronous movement of the two wheel 30 alignment assemblies toward each other or in opposite directions is achieved. In the specific positioning process, when one of the wheel 30 positioning assemblies is adjusted, the wheel 30 positioning assembly drives the other wheel 30 positioning assembly to move synchronously through the synchronization mechanism 24.

It can be understood that, with the synchronization mechanism 24 configured as described above, the pivot arm 241, the first link 242, the second link 243, the first push-pull rod 244 and the second push-pull rod 245 form a synchronized linkage relationship, so that the first laser beam 221 emitted by the first laser 22 is always located at the center position between the two wheel 30 positioning assemblies during the movement of the two wheel 30 positioning assemblies.

Optionally, in some other embodiments, the synchronizing mechanism 24 includes a sun gear 1342, a first rack 1331 and a second rack 1331 (not labeled), the sun gear 1342 is pivotally disposed on the base 23; the first rack 1331 is slidably disposed on the base 23 along the vehicle transverse direction, and is located at one side of the sun gear 1342 and engaged with the sun gear 1342; a second rack 1331, the second rack 1331 being slidably provided on the base 23 in the vehicle transverse direction and located on the other side of the sun gear 1342 and meshing with the sun gear 1342; one of the two wheel alignment members 21 is attached to the first rack 1331 and the other of the two gear wheel 1342 alignment members is attached to the second rack 1331.

In this embodiment, when the central gear 1342 rotates, the first rack 1331 and the second rack 1331 can move in opposite directions, and since one of the two wheel positioners 21 is connected to the first rack 1331 and the other of the two wheel positioners 1342 is connected to the second rack 1331, the first rack 1331 and the second rack 1331 can drive the two wheel positioners 21 to move synchronously; thus, by using the synchronizing mechanism 24 of the rack 1331 of the gear 1342, the first rack 1331 and the second rack 1331 are driven by the sun gear 1342 to form a synchronized motion relationship, and a higher degree of synchronization between the two wheel positioners 21 can be ensured.

Referring to fig. 17 and 18, the vehicle calibration apparatus further includes a sliding seat 26, the sliding seat 26 is disposed on the wheel alignment member 21 and is slidable in the longitudinal direction of the vehicle, the second laser 25 is pivotally disposed on the sliding seat 26, a slot 261 adapted to hook the measuring tape 152 is disposed on the sliding seat 26, and the slot 261 and the second laser 25 are located at the same position in the longitudinal direction of the vehicle. Specifically, the width of the slot 261 is adapted to the thickness of the tape 152 at the head so that the tape 152 can just fit into the slot 261, the pivot axis of the second laser 25 being in the longitudinal direction of the vehicle so that the second laser beam 251 emitted by the second laser 25 can be in a plane perpendicular to the longitudinal direction of the vehicle. The second laser 25 may be a linear laser, so that after the second laser 25 is moved to the middle position of the hub along the longitudinal direction of the vehicle, the second laser beam 251 emitted by the second laser 25 can form a vertical laser line passing through the center of the hub on the hub by rotating the second laser 25. The notch center line of the notch 261 is in the same plane as the second laser beam 251 emitted by the second laser 25 to ensure that the tape 152 inserted into the notch 261 has its head aligned with the hub center after the second laser beam 251 irradiates the hub center.

In the present embodiment, the position of the second laser 25 in the longitudinal direction of the vehicle can be adjusted by adjusting the sliding seat 26, and the emitting direction of the second laser 25 can be adjusted by rotating the second laser 25, thereby ensuring that the laser beam emitted by the second laser 25 can be projected to the center of the wheel hub; and then the second laser beam 251 that sends through second laser 25 realizes demarcating the wheel hub center of wheel 30, and its demarcation is reliable accurate to, easy operation, efficient.

Specifically, the vehicle calibration device further comprises a second locking member 29, wherein the second locking member 29 is disposed on the sliding seat 26, and is used for selectively locking and fixing the sliding seat 26 and the wheel positioning member 21 at a desired position. Wherein after adjusting the sliding seat 26 to the desired position, the sliding seat 26 can be locked and fixed in the desired position by the second locking member 29, so that it can be ensured that the laser is fixed in this position, and the calibration of the laser to the hub center is more reliable. In addition, when the sliding seat 26 needs to be adjusted, the second locking member 29 can be operated to release the sliding seat 26, so that the sliding seat 26 can slide relative to the wheel 30 positioning assembly, and then the sliding seat 26 is adjusted, so that the operation is convenient; it will be appreciated that the second locking member 29 can be a screw or a snap-lock.

With reference to fig. 1, 15 and 16, the calibration operation of the centering fixture 20 with the calibration support 10: during the centering operation of the calibration bracket 10 and the centering clamp 20, after the wheel 30 is positioned by the centering clamp 20, the measuring tape 152 is roughly aligned with two sides of the wheel hub of the vehicle by moving the calibration bracket 10, then the measuring tape 152 is moved on the guide rail 14 to finely adjust the position of the measuring tape 152, the measuring tape 152 is locked and fixed on the guide rail 14 through the locking assembly 153, then the tape head of the measuring tape 152 can be pulled out and hung in the clamping groove 261, and after the hanging is finished, the calibration bracket 10 is moved to straighten the measuring tape 152, so that the distance from the center of the wheel hub of the wheel 30 to the calibration bracket 10 can be measured; and, while the measuring tape 152 is being straightened, the first laser beam 221 is irradiated on the calibration disc 11, so that the first laser beam 221 is aligned with the longitudinal scale marks on the scale plate, then the four adjusting support legs 122 on the adjusting seat 121 are put down to abut against the ground, and each adjusting support leg 122 is finely adjusted, so that the first laser beam 221 is aligned with the longitudinal scale marks and the marking points 113, and the horizontal position is ensured, thereby completing the calibration and calibration of the calibration bracket 10 and the longitudinal center line of the vehicle, so that the alignment accuracy of the calibration bracket 10 and the longitudinal center line of the vehicle is higher, the operation is simpler and more convenient, and the calibration efficiency is improved.

Referring to fig. 18, a battery compartment is provided on the carriage 26, the battery compartment being adapted to receive a battery for powering the second laser 25; a compartment cover 27 is provided on the battery compartment to open or close the battery compartment through the compartment cover 27. Wherein, the battery can adopt dry battery, lithium cell etc. and supply power for second laser instrument 25 through the battery to do not need external power supply, it is more convenient to use.

Preferably, the sliding base 26 is provided with a toggle switch 28 for controlling the laser to be turned on or off. It will be appreciated that, in use, the laser may be controlled to turn on or off by a toggle switch 28 on the slide block 26 for ease of operation.

Referring to fig. 15, the base 23 includes a carriage and moving wheels 233, and the moving wheels 233 are provided at the bottom of the carriage so that the base 23 can move.

In this embodiment, the loading frame includes a transverse carrier plate 231 and a longitudinal supporting rod 232, the two wheel surface positioning elements 211 are slidably disposed at two ends of the transverse carrier plate 231, and one end of the longitudinal supporting rod 232 is vertically connected to the transverse carrier plate 231, so that the moving wheel 233 facilitates the movement of the base 23, and further facilitates the adjustment of the wheel surface positioning element 211 to abut against the wheel surface of the wheel 30 during the positioning process.

Preferably, the base 23 is further provided with a shielding case 234, the shielding case 234 covers the outside of the synchronizing mechanism 24, so that the synchronizing mechanism 24 can be hidden in the shielding case 234, thereby preventing the synchronizing mechanism 24 from accidentally injuring the hand during the operation, ensuring the synchronizing mechanism 24 to operate more reliably and safely, ensuring smooth operation, and making the appearance of the positioning fixture for the wheel 30 more concise and beautiful.

Advantageously, the base 23 is provided with a guide rail 201 extending in the vehicle transverse direction, the wheel surface positioning piece 211 is provided with a sliding block 202, and the sliding block 202 is in sliding fit with the guide rail 201, so that the wheel surface positioning piece 211 can reliably slide in the vehicle transverse direction through the sliding fit between the sliding block 202 and the guide rail 201 between the wheel surface positioning piece 211 and the base 23.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A vehicle calibration apparatus, characterized by comprising:

2. The vehicle calibration device of claim 1, wherein the calibration bracket comprises:

3. The vehicle calibration device according to claim 2, wherein the adjustable main frame comprises an adjusting seat, the calibration plate is arranged on the adjusting seat, a plurality of adjusting support legs are connected to the adjusting seat through threads, and the adjusting support legs are arranged along the height direction of the adjusting seat.

4. The vehicle calibration device according to claim 3, wherein the calibration disc is obliquely arranged on the adjustment seat, a surface facing away from the adjustment seat has a plurality of angle scales, and the calibration line and the angle scales are located on the same plane.

5. The vehicle calibration device according to claim 4, wherein a marking point is arranged below the calibration line, a 90-degree scale line is arranged on the angle scale, and the marking point, the 90-degree scale line and the calibration line are arranged on the same straight line.

6. The vehicle calibration device according to claim 2, wherein a level gauge is disposed on the guide rail for detecting whether the pitch direction and the roll direction of the calibration bracket are horizontally disposed.

7. The vehicle calibration device of claim 2, wherein the tape measure mechanism comprises:

a tape measure connected to the slider plate for movement therewith;

8. The vehicle calibration apparatus of claim 7, wherein the locking assembly comprises:

9. The vehicle calibration device of claim 2, wherein the guide rails comprise at least a first guide rail and a second guide rail, the first guide rail being mounted on the adjustable frame, the second guide rail being provided at one end of the first guide rail and being pivotable between a collapsed position and an expanded position;

10. Vehicle calibration arrangement according to claim 9, wherein the guide rail is provided with a pivot assembly comprising a first connection provided on the first guide rail and a second connection provided on the second guide rail, the first connection being provided adjacent to the second connection and being pivotally connected via a pivot axis.

11. The vehicle calibration device according to claim 9, wherein a fastener is disposed on the first guide rail, a lock is disposed on the second guide rail, and when the first guide rail overlaps the second guide rail, the fastener is engaged with the lock to lock the first guide rail and the second guide rail.

12. The vehicle calibration apparatus of claim 1, wherein the wheel alignment member comprises:

13. The vehicle calibration apparatus of claim 12, wherein the wheel alignment member further comprises:

14. The vehicle calibration device according to claim 13, wherein a threaded hole is formed in the base, a slide hole is formed in the wheel surface positioning member, and the slide hole extends in the lateral direction of the vehicle;

the first locking member includes:

15. The vehicle calibration apparatus of claim 1, wherein the synchronization mechanism comprises:

the middle part of the pivoting arm is pivoted with the base;

16. The vehicle calibration device according to claim 1, further comprising a second laser, a sliding seat and a second locking member, wherein the sliding seat is disposed on the wheel positioning member and is slidable along the longitudinal direction of the vehicle, and the second locking member is disposed on the sliding seat for selectively locking and fixing the sliding seat and the wheel positioning member at a desired position; the second laser is pivotally arranged on the sliding seat and used for emitting a second laser beam to the center of the wheel hub, a clamping groove suitable for hanging the tape measure is formed in the sliding seat, and the clamping groove and the second laser are located at the same position in the longitudinal direction of the vehicle.

17. The vehicle calibration device of claim 1 or 15, wherein a shielding cover is arranged on the base, and the shielding cover is arranged outside the synchronization mechanism.

18. The vehicle calibration device according to claim 3, wherein the adjustable main frame further comprises a lifting device, and the lifting device is arranged on the adjusting seat and fixed with the guide rail, and is used for driving the guide rail to move up and down along a vertical direction;

the lifting device comprises:

the hollow seat is fixed on the adjusting seat;

19. The vehicle calibration device of claim 18, wherein the lifting seat has a driving rack, the hollow seat has a locking seat, the driving member includes a crank and a gear disposed on the crank for rotating with the crank, the crank passes through the locking seat and extends into the hollow seat, the gear is engaged with the driving rack to drive the lifting seat to move, and the locking seat is used for locking and fixing the crank to limit the rotation of the crank.