Vehicle calibration equipment

Abstract

The present invention discloses a vehicle calibration device, comprising an alignment bracket, a wheel centering fixture, and a first laser. The alignment bracket has a light-receiving calibration member; the wheel centering fixture has two wheel positioning members for positioning two opposite wheels in the vehicle's transverse direction; a first laser is disposed between the two wheel positioning members, for emitting a first laser beam extending longitudinally along the vehicle and projecting it onto the light-receiving calibration member; when the two wheel positioning members position the two opposite wheels, the first laser is located at the midpoint of the line connecting the two opposite wheels. The vehicle calibration device provided in accordance with an embodiment of the present invention can calibrate the longitudinal centerline of the vehicle, is simple and convenient to operate, and has high calibration efficiency. In addition, this alignment calibration method utilizing the first laser is accurate and reliable.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a vehicle calibration device. Background Art

[0002] Autonomous driving is the future trend, and ADAS (Advanced Driver Assistance Systems) is the essential path to achieving autonomous driving. Initially, ADAS technology was used in luxury vehicles. However, as the technology matured and prices fell, automakers began to incorporate it into mid-range and compact cars. With the global number of cars equipped with ADAS expected to reach a significant number, the automotive aftermarket is also in need of ADAS calibration services. These services help users smoothly calibrate radar and cameras, restoring ADAS functionality and ensuring driving safety.

[0003] Before performing ADAS calibration, it is usually necessary to calibrate the vehicle's longitudinal centerline. In related technologies, this calibration is very cumbersome and inefficient, and can result in large angular deviations, making the calibrated vehicle's longitudinal centerline inaccurate. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present invention aims to provide a vehicle calibration device.

[0005] To achieve the above objectives, a vehicle calibration device according to an embodiment of the present invention includes:

[0006] An alignment bracket having a light-receiving positioning member;

[0007] A wheel alignment fixture having two wheel locating members for locating two opposite wheels in the transverse direction of the vehicle;

[0008] A first laser is provided between the two wheel locating members, and is used for emitting a first laser beam extending in the longitudinal direction of the vehicle and projecting it onto the light-receiving positioning member; when the two wheel locating members position the two opposite wheels, the first laser is located at the midpoint of the line connecting the two opposite wheels.

[0009] According to the vehicle calibration device provided by an embodiment of the present invention, two wheels on the vehicle's transverse direction can be positioned by moving two wheel alignment assemblies toward each other along the vehicle's transverse direction. Since the first laser is located between the two wheel alignment assemblies, and when the two wheel alignment members are aligning the two opposing wheels, the first laser is located at the midpoint of the line connecting the two opposing wheels. Therefore, as long as the two wheel alignment assemblies and the two wheels are aligned, the first laser beam emitted by the first laser source can coincide with the longitudinal centerline of the vehicle, thereby achieving calibration of the longitudinal centerline of the vehicle. The operation is simple and convenient, the calibration efficiency is high, and this method of centering and calibrating using the first laser is accurate and reliable. In addition, the first laser beam is projected onto the light-receiving calibrating member of the alignment and calibrating bracket. In this way, by adjusting the alignment and calibrating bracket, the alignment and calibrating bracket can be made perpendicular to the longitudinal center axis of the vehicle.

[0010] In addition, the vehicle calibration device according to the above embodiment of the present invention may also have the following additional technical features:

[0011] According to one embodiment of the present invention, the wheel centering fixture comprises:

[0012] a base, wherein the first laser is disposed on the base, and the two wheel locating members are disposed on the base opposite to each other in the transverse direction of the vehicle and symmetrically with respect to the first laser beam;

[0013] A linkage mechanism is connected between the two wheel locating components to enable the two wheel locating components to move synchronously toward or in opposite directions relative to the base in the transverse direction of the vehicle.

[0014] According to one embodiment of the present invention, the alignment bracket comprises:

[0015] a light-aligning member having a pair of light holes for allowing the first laser beam to pass through;

[0016] The light-receiving positioning member is pivotable relative to the light-aiming member about a vertical axis, and the light-receiving positioning member has a scale, which is opposite to the light-aiming hole and extends in the transverse direction of the vehicle, so that the first laser beam emitted from the light-aiming hole can be projected onto the scale;

[0017] A horizontal slide rail is slidably arranged on the light-receiving positioning member along the transverse direction of the vehicle and is parallel to the scale.

[0018] According to one embodiment of the present invention, the alignment bracket further comprises:

[0019] Mobile racks;

[0020] A lifting seat, the lifting seat being movably arranged on the movable frame in a vertical direction;

[0021] The light-aiming member is slidably arranged on the lifting seat along the transverse direction of the vehicle, and the light-receiving positioning member is pivotally arranged on the light-aiming member around the vertical axis.

[0022] According to one embodiment of the present invention, the wheel locating member comprises:

[0023] a sliding plate, the sliding plate being slidably disposed on the base in a transverse direction of the vehicle;

[0024] A wheel tread positioning member, the wheel tread positioning member is provided on the sliding plate and is used to stop and position the wheel tread;

[0025] A wheel side positioning member is provided on the sliding plate and is used to stop and position the outer side surface of the wheel.

[0026] According to one embodiment of the present invention, the wheel locating member further comprises:

[0027] A first locking member is provided between the base and the sliding plate, and is used to lock and fix the sliding plate relative to the base.

[0028] According to one embodiment of the present invention, the wheel locating member further comprises:

[0029] A second laser is movably arranged on the sliding plate and is used for emitting a second laser beam extending in the transverse direction of the vehicle to locate the center of the wheel.

[0030] According to one embodiment of the present invention, the wheel locating member further comprises:

[0031] a sliding arm, the sliding arm being slidably disposed on the sliding plate along the longitudinal direction of the vehicle;

[0032] a sliding rod, the sliding rod being slidably disposed on the sliding arm in a vertical direction, and the second laser being mounted on the sliding rod;

[0033] A second locking member is provided between the sliding arm and the sliding rod, and is used to lock and fix the sliding rod relative to the sliding arm, so that the sliding rod can be selectively fixed at a predetermined height.

[0034] According to one embodiment of the present invention, the wheel tread positioning member includes a positioning wheel, the positioning wheel is provided on the sliding plate and the axis of the positioning wheel extends in the transverse direction of the vehicle.

[0035] According to one embodiment of the present invention, the linkage mechanism includes:

[0036] a pivot arm, a middle portion of the pivot arm being pivotally connected to the base;

[0037] a first connecting rod, one end of which is pivotally connected to one end of the pivot arm;

[0038] a second connecting rod, one end of the second connecting rod being pivotally connected to the other end of the pivot arm;

[0039] a first push-pull rod, one end of which is pivotally connected to one end of the first connecting rod, and the other end of which is connected to one of the two wheel positioning members;

[0040] A second push-pull rod, one end of which is pivotally connected to one end of the second connecting rod, and the other end of which is connected to the other of the two wheel positioning members.

[0041] According to one embodiment of the present invention, the linkage mechanism further comprises a first guide assembly and a second guide assembly;

[0042] The first guide assembly is provided between the first push-pull rod and the base to guide the first push-pull rod to move laterally along the vehicle. The second guide assembly is provided between the second push-pull rod and the base to guide the second push-pull rod to move laterally along the vehicle.

[0043] According to one embodiment of the present invention, the base comprises:

[0044] First side seat;

[0045] a second side seat, the second side seat being arranged opposite to the first side seat in a transverse direction of the vehicle;

[0046] a central seat, the central seat being located between the first side seat and the second side seat and being fixed relative to the first side seat and the second side seat;

[0047] The first laser is arranged on the central seat, one of the two wheel positioning members is slidably arranged on the first side seat along the transverse direction of the vehicle, and the other of the two wheel positioning members is slidably arranged on the second side seat along the transverse direction of the vehicle.

[0048] According to one embodiment of the present invention, the central seat extends longitudinally along the vehicle, and casters are respectively provided at the bottoms of the first side seat, the second side seat and the central seat.

[0049] According to one embodiment of the present invention, the alignment bracket further comprises:

[0050] A third locking member is provided between the light-aiming member and the lifting seat, and is used to lock and fix the light-aiming member and the lifting seat relative to each other.

[0051] According to one embodiment of the present invention, the light-aligning member includes:

[0052] a sliding portion, the sliding portion being slidably provided on the lifting seat in a transverse direction of the vehicle;

[0053] An extension portion is formed by extending downward from one side of the sliding portion, and the light-aligning hole is provided on the extension portion.

[0054] According to one embodiment of the present invention, the lifting seat includes:

[0055] a horizontal plate, wherein the light aiming member is slidably arranged on the horizontal plate in the transverse direction of the vehicle;

[0056] A vertical plate is connected to the horizontal plate to form an L-shape, and the vertical plate is movably arranged on the movable frame.

[0057] According to one embodiment of the present invention, the light-receiving positioning member includes:

[0058] a pivot seat, the pivot seat being pivotally arranged on the light-aiming member around the vertical axis;

[0059] A connecting member is connected between the pivot seat and the scale.

[0060] According to one embodiment of the present invention, the horizontal plate is provided with a clearance hole, and the connecting member includes a horizontal part and a vertical part, one end of the horizontal part is connected to the pivot seat, one end of the vertical part is connected to the horizontal part, and the other end of the vertical part passes downward through the clearance hole and is connected to the scale.

[0061] According to an embodiment of the present invention, a damper is provided on the light-aiming member and is pivotable about the vertical axis. The pivot seat is sleeved on the damper and fixed relative to the damper in a circumferential direction.

[0062] According to one embodiment of the present invention, the scale has a calibration scale and offset reference scales located on both sides of the calibration scale. When the first laser beam is projected onto the calibration scale, the scale is perpendicular to the first laser beam.

[0063] According to one embodiment of the present invention, the alignment cursor fixing frame further comprises:

[0064] A horizontal slide rail is slidably arranged on the light-receiving positioning member along the transverse direction of the vehicle and is parallel to the scale.

[0065] According to one embodiment of the present invention, the light-receiving positioning member is provided with two guide blocks, the two guide blocks are provided with sliding grooves, and the horizontal slide rail is slidably arranged in the sliding grooves of the two guide blocks.

[0066] According to one embodiment of the present invention, one of the two guide blocks is slidably connected to the light-receiving fixing member via a dovetail structure, and one of the two guide blocks is fixedly connected to the light-receiving fixing member via a fastener.

[0067] According to one embodiment of the present invention, the alignment cursor fixing frame further comprises:

[0068] A driving device is provided on the movable frame and is connected to the lifting seat, and is used for driving the lifting seat to move vertically.

[0069] According to one embodiment of the present invention, the driving device includes:

[0070] A screw rod, the screw rod is pivotally mounted on the movable frame about its own axis and extends vertically;

[0071] A screw nut, the screw nut being threadedly sleeved on the screw and fixedly connected to the lifting seat;

[0072] A driving member is connected to the screw rod and is used to drive the screw rod to rotate.

[0073] According to one embodiment of the present invention, the driving member includes a crank and a gear set, and the crank is pivotally mounted on the movable frame;

[0074] The gear set includes at least a driving gear and a driven gear. The driving gear is provided on the crank and driven to rotate by the crank. The driven gear is provided on the screw rod and meshes with the driving gear.

[0075] According to one embodiment of the present invention, the driving device further includes:

[0076] A fourth locking member is provided between the crank handle and the movable frame, and is used to lock and fix the crank handle and the movable frame.

[0077] According to one embodiment of the present invention, the light aligning and fixing frame further includes an adjustable limiter, which is provided on the light aligning member and is used to limit the light receiving and fixing member after the light receiving and fixing member is rotated and adjusted to a predetermined position.

[0078] According to one embodiment of the present invention, the adjustable limiter includes:

[0079] a screw rod, the screw rod being provided on the light-aiming member and extending in the transverse direction of the vehicle;

[0080] A stopper is provided on the light-receiving positioning member, and the stopper has a stopper slope, and the stopper slope abuts against the end of the screw rod.

[0081] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0083] Figure 1 is a schematic structural diagram of a vehicle calibration device according to an embodiment of the present invention;

[0084] Figure 2 This is a schematic structural diagram of the vehicle calibration device in use according to an embodiment of the present invention;

[0085] Figure 3 Schematic diagram of the structure of the wheel centering fixture (two wheel locating parts move toward each other) in the vehicle calibration equipment according to an embodiment of the present invention;

[0086] Figure 4 Schematic diagram of the structure of the wheel centering fixture (two wheel locating parts move in opposite directions) in the vehicle calibration equipment according to an embodiment of the present invention;

[0087] Figure 5 This is a schematic structural diagram of the linkage mechanism and two wheel locating components in the wheel centering fixture according to an embodiment of the present invention;

[0088] Figure 6 2. It is a schematic structural diagram of the base and the first laser in the wheel centering fixture according to an embodiment of the present invention;

[0089] Figure 7 1 is a schematic structural diagram of a wheel locating member in a wheel centering fixture according to an embodiment of the present invention;

[0090] Figure 8 1 is a schematic structural diagram of an alignment bracket in a vehicle calibration device according to an embodiment of the present invention;

[0091] Figure 9 is a front view of an alignment bracket in a vehicle calibration device according to an embodiment of the present invention;

[0092] Figure 10 1 is a schematic structural diagram of a scale of an alignment calibration bracket in a vehicle calibration device according to an embodiment of the present invention;

[0093] Figure 11This is an exploded view of an alignment bracket in a vehicle calibration device according to an embodiment of the present invention from one perspective;

[0094] Figure 12 This is an exploded view of another perspective of the alignment bracket in the vehicle calibration device according to an embodiment of the present invention;

[0095] Figure 13 This is an exploded view of the lifting seat, the light-aligning component, and the light-receiving and fixing component in the light-aligning and fixing bracket according to an embodiment of the present invention;

[0096] Figure 14 It is a partial cross-sectional view of the assembly state of the lifting seat, the light-aligning member and the light-receiving fixing member in the light-aligning fixing bracket according to an embodiment of the present invention;

[0097] Figure 15 It is a full cross-sectional view of the assembly state of the lifting seat, the light-aligning member and the light-receiving fixing member in the light-aligning fixing bracket according to an embodiment of the present invention.

[0098] Reference numerals:

[0099] Aligning the bracket 100;

[0100] Light-aiming element 10;

[0101] Sliding portion 101;

[0102] extension portion 102;

[0103] Focusing hole H10;

[0104] Side stop 103;

[0105] Round table 104;

[0106] Light receiving fixture 11;

[0107] scale 111;

[0108] Calibration scale 1111;

[0109] Offset reference scale 1112;

[0110] pivot seat 112;

[0111] Dovetail groove 1121;

[0112] Connector 113;

[0113] horizontal portion 1131;

[0114] vertical portion 1132;

[0115] Groove H112;

[0116] Mobile rack 12;

[0117] Lifting seat 13;

[0118] horizontal plate 131;

[0119] Avoidance hole 1311;

[0120] vertical plate 132;

[0121] A third locking member 14;

[0122] First Hand 141;

[0123] a first screw portion 142;

[0124] Damper 15;

[0125] Adjustable limiter 16;

[0126] Screw 161;

[0127] stopper 163;

[0128] Stop slope S16;

[0129] Guide block 17a;

[0130] Dovetail track 17b;

[0131] Horizontal slide rail 18;

[0132] Drive device 19;

[0133] Screw 191;

[0134] Screw nut 192;

[0135] Driving member 193;

[0136] Crank 1931;

[0137] Gear set 1932;

[0138] Fourth locking member 194;

[0139] Wheel centering fixture 200;

[0140] Base 20;

[0141] First side seat 201;

[0142] Second side seat 202;

[0143] Center seat 203;

[0144] Connecting rod 204;

[0145] Caster 205;

[0146] Wheel positioning member 21;

[0147] Sliding plate 211;

[0148] Strip hole 2111;

[0149] Wheel tread positioning member 212;

[0150] Positioning wheel 2121;

[0151] L-shaped connecting plate 2122;

[0152] Wheel side positioning member 213;

[0153] a second laser 214;

[0154] Sliding arm 215;

[0155] Sliding rod 216;

[0156] a first locking member 217;

[0157] Operating knob 2171;

[0158] a second locking member 218;

[0159] linkage mechanism 22;

[0160] pivot arm 221;

[0161] a first connecting rod 222;

[0162] Second connecting rod 223;

[0163] a first push-pull rod 224;

[0164] A second push-pull rod 225;

[0165] a first guide assembly 226;

[0166] First card block 2261;

[0167] first fastener 2262;

[0168] a second guide assembly 227;

[0169] Second card block 2271;

[0170] Second fastener 2272;

[0171] a first laser 300;

[0172] a first laser beam 30;

[0173] Wheel 400.

[0174] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0175] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0176] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0177] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0178] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0179] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0180] In the related art, the method for calibrating the longitudinal centerline of a vehicle using existing calibration equipment is as follows:

[0181] (1) Move the calibration device and visually align the laser emitted from the center of the calibration device with the center of the car's front bumper. In this method, the laser emitted from the center of the calibration device is initially visually aligned with the center of the car's front bumper. The calibration device and the longitudinal center plane of the vehicle are not perpendicular, resulting in the laser point reflected by the reflector being biased toward the inside or outside of the laser scale. It is difficult to find the reflected laser point on the laser scale on both sides of the vehicle, and there is an angle deviation in the left and right directions.

[0182] (2) Use a tape measure or laser rangefinder to measure the distance between the calibration device and the vehicle's front bumper or front wheel center. This method ignores uneven ground and unadjusted vehicle chassis suspension systems. The vehicle's rear wheel axle and the calibration device's crossbeam are not on the same horizontal plane, resulting in different laser emission directions on both sides and an angular deviation in the vertical direction.

[0183] (3) Install two wheel hub clamps on the rear wheels on both sides of the vehicle, install the laser in each, and then turn on the laser for calibration. Due to the angular deviation in two directions, the laser points returned from both sides of the vehicle cannot effectively hit the laser scale. In order to make the laser points reflected by the reflector hit the scales on both sides of the laser scales equally, the operator needs to adjust the calibration equipment and laser multiple times between the calibration equipment and the rear wheels on both sides of the car, resulting in a complicated operation process, high learning cost, and reduced efficiency.

[0184] (4) Rotate the laser and adjust the direction of the laser spot so that it hits the scales on both sides of the calibration equipment beam. Adjust the calibration equipment until the laser spot hits the scales on both sides of the beam at the same level. In this method, there is a certain distance between the calibration equipment and the rear wheels of the vehicle, making it difficult to observe whether the laser spots on both sides are aligned with the scales on the laser, which increases the difficulty of calibration and the time cost.

[0185] The vehicle calibration device according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0186] Reference Figures 1 to 15 As shown, the vehicle calibration device provided according to an embodiment of the present invention is used to calibrate the longitudinal center line of a vehicle, and includes an alignment calibration bracket 100, a wheel centering fixture 200 and a first laser 300.

[0187] Specifically, the alignment bracket 100 has a light receiving locating member 11. The wheel centering fixture 200 has two wheel locating members 21 for locating two opposite wheels 400 in the vehicle's transverse direction, that is, the two wheel locating members 21 can respectively locate the two front wheels or the two rear wheels of the vehicle.

[0188] The first laser 300 is disposed between the two wheel locators 21 and is configured to emit a first laser beam 30 extending longitudinally of the vehicle and projecting it onto the light-receiving positioning member 11. When the two wheel locators 21 position the two opposing wheels 400, the first laser 300 is located at the midpoint of the line connecting the two opposing wheels 400.

[0189] During calibration, the two wheel locators 21 in the wheel alignment fixture 200 are first used to align the two opposing wheels 400 in the transverse direction of the vehicle. Once the two wheel locators 21 have positioned the two opposing wheels 400, the first laser 300 is positioned at the midpoint of the line connecting the two wheels 400. Subsequently, the first laser 300 is turned on, and the first laser beam 30 emitted by the first laser 300 extends longitudinally and is directed toward the light-receiving locating element 11 of the alignment bracket 100. At this point, the first laser beam 30 emitted by the first laser 300 is positioned on the longitudinal centerline of the vehicle. Furthermore, by adjusting the alignment bracket 100 so that it is perpendicular to the laser beam, the alignment bracket 100 can be adjusted to be perpendicular to the vehicle's longitudinal centerline. The radar and / or camera calibration can then be performed using the mounting tool on the alignment bracket 100.

[0190] The vehicle calibration device provided by an embodiment of the present invention can locate two wheels 400 in the transverse direction of the vehicle by moving two wheel alignment assemblies toward each other along the transverse direction of the vehicle. Since the first laser 300 is located between the two wheel alignment members 21, and when the two wheel alignment members 21 are aligning the two opposing wheels 400, the first laser 300 is located at the midpoint of the line connecting the two opposing wheels 400. Therefore, as long as the two wheel alignment assemblies and the two wheels 400 are aligned, the first laser beam 30 emitted by the first laser 300 can coincide with the longitudinal centerline of the vehicle, thereby calibrating the longitudinal centerline of the vehicle. The device is simple and convenient to operate, with high calibration efficiency. Moreover, this centering calibration method using the first laser 300 is accurate and reliable. In addition, the first laser beam is projected onto the light-receiving alignment member 11 of the alignment alignment bracket 100. Thus, by adjusting the alignment alignment bracket 100, the alignment alignment bracket 100 can be made perpendicular to the longitudinal center axis of the vehicle.

[0191] Reference Figures 3 to 7 As shown, in some embodiments of the present invention, a wheel alignment fixture 200 includes a base 20 and a linkage mechanism 22. A first laser 300 is disposed on the base 20. Two wheel alignment components 21 are disposed on the base 20 in opposite directions in the transverse direction of the vehicle and are symmetrical about the first laser beam 30. The linkage mechanism 22 is connected between the two wheel alignment components 21 to enable the two wheel alignment components to synchronously move toward or in opposite directions relative to the base 20 in the transverse direction of the vehicle.

[0192] That is to say, both wheel locators 21 can move relative to the base 20, and the two wheel locators 21 move toward or away from each other along the lateral direction of the vehicle. The linkage mechanism 22 is connected between the two wheel locators 21. When one wheel locator 21 moves a predetermined distance, the linkage action of the linkage mechanism 22 can enable the other wheel locator 21 to move the same distance, thereby realizing the synchronous movement of the two wheel locators 21.

[0193] Because the two wheel locators 21 are symmetrical about the first laser beam 30 emitted by the first laser 300, the first laser beam 30 of the first laser 300 is located at the midpoint of the line connecting the two wheel locators 21. Furthermore, when the two wheel locators 21 move relative to the base 20, the first laser 300 remains stationary, and the position of the first laser beam 30 emitted by the first laser 300 remains unchanged. In this way, when the two wheel locators 21 are positioned on two opposing wheels 400, the midpoint of the line connecting the two wheel locators 21 coincides with the midpoint of the line connecting the two opposing wheels 400, and the first laser beam 30 emitted by the first laser 300 can be maintained on the longitudinal centerline of the vehicle.

[0194] When aligning a wheel 400, the wheel centering fixture 200 is placed under the vehicle. The two wheel aligners 21 can be moved in opposite directions along the lateral direction of the vehicle to adjust the distance between the two wheel aligners 21 so that the distance between the two wheel aligners 21 is just suitable for aligning the two wheels 400. For example, the two wheel aligners 21 stop at the outer sides of the two wheels 400. In this way, the positioning of the two wheels 400 is completed. Since the two wheel aligners 21 can move synchronously, when aligning a wheel 400, once one wheel aligner 21 is adjusted to a suitable position to align that wheel 400, the other wheel aligner 21 can automatically and synchronously adjust to a suitable position to align the other wheel 400. This makes the positioning operation very convenient and quick. In addition, the synchronous movement of the two wheel aligners 21 can ensure that the first laser 300 is always located at the midpoint of the line connecting the two wheel aligners 21 and remains unchanged.

[0195] Reference Figures 8 to 15 As shown, in some embodiments of the present invention, the alignment bracket 100 includes an alignment member 10 having a pair of apertures H10 for passing the first laser beam 30. A light-receiving alignment member 11 is pivotable relative to the alignment member 10 about a vertical axis. The light-receiving alignment member 11 has a scale 111 that opposes the alignment apertures H10 and extends transversely of the vehicle, such that the first laser beam 30 emitted from the alignment apertures H10 can be projected onto the scale 111.

[0196] The horizontal slide rail 18 is provided on the light-receiving positioning member 11 and is parallel to the scale 111. Preferably, the horizontal slide rail 18 is slidably provided on the light-receiving positioning member 11 along the transverse direction of the vehicle and is parallel to the scale 111. The horizontal slide rail 18 can be used to install a radar calibration plate and a pattern plate. The radar calibration plate is used to calibrate the vehicle's radar, and the pattern plate is used to calibrate the vehicle's camera. In this way, the alignment positioning bracket 100 can be used to assist in calibrating the vehicle's radar and camera. In other words, the alignment hole H10 on the light-receiving positioning member 10 is opposite to the scale 111 of the light-receiving positioning member 11 in the longitudinal direction of the vehicle. The first laser beam 30 emitted by the first laser 300 can pass through the alignment hole H10 and be projected onto the scale of the light-receiving positioning member 11. At the same time, the light-receiving positioning member 11 can rotate around the vertical axis, which can cause the scale to deflect relative to the alignment hole H10, that is, adjust the angle of the scale, and then adjust the specific scale value on the scale projected by the first laser beam 30. In this way, using the scale value on the scale 111 projected by the first laser beam 30 as a reference, it can be determined whether the alignment positioning bracket 100 is perpendicular to the longitudinal centerline of the vehicle.

[0197] Exemplarily, multiple scale values ​​can be set on the scale 111, one of the scale values ​​is set as the calibration scale 1111, and the remaining scale values ​​are set as the offset reference scale 1112. When the first laser beam 30 is projected onto the calibration scale 1111, the scale 111 is perpendicular to the first laser beam 30, and when the first laser beam 30 is projected onto the offset reference scale 1112, the scale 111 is not perpendicular to the laser beam. For example, the scale value of the calibration scale 1111 is set to 0 at the center of the scale 111, and the offset reference scales 1112 on both sides of the calibration scale 1111 are set to multiple scale values ​​in sequence. Therefore, during the adjustment process, the angle of the scale is adjusted by rotating the light-receiving positioning member 11 around the vertical axis. The first laser beam 30 is just projected onto the position of the calibration scale 1111, so that the scale 111 and the first laser beam 30 are perpendicular to each other. At this time, since the horizontal slide rail 18 is parallel to the scale 111, when the first laser beam is projected onto the calibration scale 1111 of the scale 111, the first laser beam is perpendicular to the scale 111. At the same time, the first laser beam is also perpendicular to the horizontal slide rail 18. In this way, it can be determined that the horizontal slide rail 18 is perpendicular to the longitudinal centerline of the vehicle.

[0198] In this embodiment, the first laser beam 30 of the first laser 300 passes through the alignment hole H10 and is projected onto the scale of the light-receiving positioning member 11. In this way, the alignment path of the first laser 300, the light-receiving positioning member 10, and the light-receiving positioning member 11 is realized in a straight line. The alignment principle is clear and the operation is convenient. By judging the position of the first laser beam projected on the scale 111, it can be determined whether the first laser beam is perpendicular to the scale 111, and further whether the longitudinal center axis of the vehicle is perpendicular to the horizontal slide rail 18 can be determined.

[0199] Reference Figures 8 and 9 and Figures 11 to 12 As shown, in one embodiment of the present invention, the light-aligning bracket 100 further includes a movable frame 12 and a lifting seat 13. The lifting seat 13 is vertically movably mounted on the movable frame 12. The light-aligning member 10 is slidably mounted on the lifting seat 13 in the transverse direction of the vehicle, and the light-receiving fixing member 11 is pivotally mounted on the light-aligning member 10 about the vertical axis.

[0200] Specifically, the aiming member 10 is mounted on the lifting platform 13 and can move vertically up and down with the lifting platform 13, as well as laterally relative to the lifting platform 13 along the vehicle. Thus, the vertical movement of the lifting platform 13 allows the vertical heights of the aiming member 10 and the light-receiving stator 11 to be adjusted, so that the aiming hole H10 on the aiming member 10 and the scale 111 on the light-receiving stator 11 are at the same height as the first laser beam 30 emitted by the first laser 300. Lateral movement of the aiming member 10 along the vehicle allows alignment between the aiming hole H10 of the aiming member 10 and the first laser beam 30, allowing the first laser beam 30 to pass through the aiming hole H10 and project onto the scale of the light-receiving stator 11. Furthermore, combined with the pivoting adjustment of the light-receiving stator 11, the scale can be deflected relative to the aiming hole H10, adjusting the scale angle and, consequently, the specific scale value projected by the first laser beam 30 on the scale.

[0201] During the calibration process, after the two wheels 400 are aligned using the two wheel locators 21 of the wheel alignment fixture 200, the alignment bracket 100 is placed in front of or behind the vehicle. The height of the lifting base 13 is adjusted so that the alignment hole H10 on the alignment member 10 and the scale 111 on the light-receiving alignment member 11 are at the same height as the first laser beam 30 emitted by the first laser 300. The alignment member 10 is then moved laterally along the vehicle so that the first laser beam 30 passes through the alignment hole H10 on the alignment member 10 and is projected onto the scale on the light-receiving alignment member 11. The light-receiving alignment member 11 can also be pivoted about a vertical axis so that the first laser beam 30 is projected onto the calibration scale 1111 on the scale. At this point, the scale 111 is perpendicular to the first laser beam. Thus, the perpendicularity between the scale and the first laser beam can be determined using the scale value projected by the first laser beam 30 as a reference.

[0202] In this embodiment, the light-aiming member 10 and the light-receiving fixing member 11 can both move vertically with the lifting seat 13, thereby adjusting the height positions of the light-aiming member 10 and the light-receiving fixing member 11. At the same time, the light-aiming member 10 and the light-receiving fixing member 11 can move laterally along the vehicle. In this way, on the one hand, the positions of the light-aiming member 10 and the light-receiving fixing member 11 can be adjusted freely and conveniently so as to realize the light-aiming path of the first laser 300, the light-aiming member 10 and the light-receiving fixing member 11 in a straight line. On the other hand, by adjusting the positions of the light-aiming member 10 and the light-receiving fixing member 11, different vehicle models and detection sites can be adapted.

[0203] It should be noted that when the inspection site is uneven, the front and rear wheels of the vehicle may not be on the same plane. Similarly, the first laser 300 and the light-aiming hole H10 and the light-receiving positioning piece 11 may also be at different heights. The first laser beam 30 cannot pass through the light-aiming hole H10. Therefore, by adjusting the height positions of the light-aiming piece 10 and the light-receiving positioning piece 11, different inspection sites can be adapted.

[0204] Reference Figures 3 to 5 and Figure 7 As shown, in one embodiment of the present invention, the wheel positioning member 21 includes a sliding plate 211, a wheel surface positioning member 212 and a wheel side positioning member 213, wherein the sliding plate 211 is slidably arranged on the base 20 along the transverse direction of the vehicle; the wheel surface positioning member 212 is arranged on the sliding plate 211 to stop and position the wheel surface of the wheel 400; the wheel side positioning member 213 is arranged on the sliding plate 211 to stop and position the outer side of the wheel 400.

[0205] That is, the sliding plate 211 can slide relative to the base 20 in the transverse direction of the vehicle. The wheel tread positioning member 212 and the wheel side positioning member 213 are both provided on the sliding plate 211 and can be adjusted in position as the sliding plate 211 slides. The wheel tread positioning member 212 is used to position the wheel tread of the wheel 400, while the wheel side positioning member 213 is used to position the outer side of the wheel 400. During positioning, the vehicle centering device can be placed under the vehicle, and then the sliding plates 211 of the two wheel positioning members 21 are moved in the transverse direction of the vehicle so that the wheel tread positioning members 212 of the two wheel positioning members 21 abut against the wheel tread of the wheel 400, and the two wheel side positioning members 213 abut against the outer side of the wheel 400. In this way, the two wheel positioning members 21 can be positioned on two opposing wheels 400.

[0206] In this embodiment, the sliding plate 211 is used to slide, facilitating the two wheel locators 21 to move toward or away from each other, thereby adjusting the spacing between the two wheel locators 21 to coincide with the width of the two opposing wheels 400, thereby positioning the two opposing wheels 400. Furthermore, the wheel locators 21 utilize the wheel tread locating members 212 to abut against the wheel tread of the wheel 400, while the wheel side locating members 213 abut against the side of the wheel 400. This allows the wheel 400 to be positioned from two directions, ensuring reliable and accurate positioning of the wheel 400 and preventing inaccurate vehicle centerline calibration due to inaccurate wheel 400 positioning.

[0207] For example, a slider is provided at the bottom of the sliding plate 211, and a guide rail extending along the transverse direction of the vehicle is provided on the base 20. The slider slides in cooperation with the guide rail. In this way, the sliding plate 211 utilizes the slider to slide in cooperation with the guide rail on the base 20, so that the sliding plate 211 can slide smoothly and reliably in the transverse direction of the vehicle.

[0208] Optionally, the wheel positioning member 21 further includes a first locking member 217, which is disposed between the base 20 and the sliding plate 211 and is used to lock and fix the sliding plate 211 relative to the base 20. During the positioning process of the wheel 400, after the sliding plate 211 slides to a desired position so that the wheel tread positioning member 212 abuts against the wheel tread of the wheel 400 and the wheel side positioning member 213 abuts against the side of the wheel 400, the sliding plate 211 is locked and fixed relative to the base 20 by the first locking member 217. In this way, inaccurate positioning caused by sliding of the sliding plate 211 after positioning is completed can be prevented, thereby ensuring reliable positioning.

[0209] Exemplarily, the first locking member 217 includes a screw and an operating knob 2171 provided at the upper end of the screw. A bar hole 2111 is provided on the sliding plate 211, and a threaded hole is provided on the base 20. The lower end of the screw passes through the bar hole 2111 and is threadedly connected to the threaded hole. The operating knob 2171 is located above the sliding plate 211. The operating knob 2171 is rotated so that the operating knob 2171 is pressed against the sliding plate 211, thereby locking and fixing the sliding plate 211 and the base 20 relative to each other. In this way, the operation is convenient and the locking and fixing is reliable.

[0210] It should be noted that the wheel locating member 21 can move relative to the base 20, and the wheel locating member 21 can be locked at different positions on the base 20 by the first locking member 217. In other words, the wheel locating member 21 can randomly stop at a certain position on the base 20. Therefore, for vehicles of different widths, when the wheel locating member 21 positions the wheel, the position where the wheel locating member 21 stops is different, and thus it can adapt to the position adjustment of different vehicle models and realize the calibration of the longitudinal center line of different vehicle models.

[0211] Reference Figures 3 to 5 and Figure 7 As shown, in one embodiment of the present invention, the wheel locator 21 further includes a second laser 214 movably mounted on the sliding plate 211 for emitting a second laser beam extending transversely of the vehicle to locate the center of the wheel 400 .

[0212] That is, the second laser 214 can slide to the outside of the wheel 400 along with the sliding plate 211, and the second laser 214 can emit a second laser beam extending along the transverse direction of the vehicle. By adjusting the position of the second laser 214, the laser beam emitted by the second laser 214 can be made to coincide with the center of the wheel 400. In this way, the center of the wheel 400 can be positioned using the laser beam emitted by the second laser 214.

[0213] Reference Figure 5 and Figure 7 As shown, in one embodiment of the present invention, the wheel locator 21 further includes a sliding arm 215, a sliding rod 216, and a second locking member 218. The sliding arm 215 is slidably disposed on the sliding plate 211 along the longitudinal direction of the vehicle. The sliding rod 216 is slidably disposed on the sliding arm 215 in the vertical direction, and the second laser 214 is mounted on the sliding rod 216. The second locking member 218 is disposed between the sliding arm 215 and the sliding rod 216 to lock and secure the sliding rod 216 relative to the sliding arm 215, so that the sliding rod 216 can be selectively fixed at a predetermined height.

[0214] That is, the sliding arm 215, the sliding rod 216, and the second locking member 218 are disposed on the sliding plate 211 and can slide along the transverse direction of the vehicle along with the sliding plate 211. Simultaneously, the sliding arm 215 can slide longitudinally of the vehicle relative to the sliding plate 211, while the sliding rod 216 can slide vertically relative to the sliding arm 215. The second laser 214 is mounted on the sliding rod 216. When locating the center of the wheel 400, the sliding arm 215 can slide longitudinally of the vehicle and the sliding rod 216 can slide vertically to adjust the position of the second laser 214 on the sliding rod 216. This allows the second laser 214 to be aligned with the center of the wheel 400, thereby ensuring that the laser beam emitted by the second laser 214 is projected onto the center of the wheel 400.

[0215] In this embodiment, the sliding arm 215 and the sliding rod 216 are adjusted to slide in two different directions, longitudinal and vertical, to adjust the position of the second laser 214, thereby conveniently and quickly positioning the center of the wheel 400.

[0216] For example, one end of the sliding arm 215 is provided with a sliding groove, and the sliding plate 211 is provided with a sliding rail. The sliding arm 215 is fitted with the sliding rail via a sliding sleeve, thereby enabling the sliding arm 215 to slide smoothly and reliably relative to the sliding plate 211. Furthermore, the other end of the sliding arm 215 is provided with a vertical through-hole, through which the sliding rod 216 slides. The second laser 214 is fixedly mounted at the upper end of the sliding rod 216. This allows the vertical position of the sliding rod 216 and the longitudinal direction of the vehicle to be arbitrarily adjusted.

[0217] Optionally, the second locking member 218 is a screw, and a screw hole is provided on the sliding arm 215 that radially penetrates to the through hole. The screw thread is fitted into the screw hole, and the sliding rod 216 is locked and fixed by adjusting the depth of the screw in the threaded nail.

[0218] Optionally, the wheel tread positioning member 212 includes a positioning wheel 2121, which is disposed on the sliding plate 211 and has an axis extending transversely of the vehicle. When the wheel 400 is positioned using the wheel tread positioning member 212, the outer peripheral surface of the positioning wheel 2121 is tangent to the wheel tread of the wheel 400. Thus, the tangent relationship between the positioning wheel 2121 and the wheel tread of the wheel 400 ensures more accurate positioning of the wheel 400.

[0219] Illustratively, one side of the sliding plate 211 is fixedly connected to an L-shaped connecting plate 2122, and the positioning wheel 2121 is pivotally provided on the L-shaped connecting plate 2122 via a rotating shaft. In this way, on the one hand, the positioning wheel 2121 can be ensured to be away from the sliding plate 211, so as to facilitate contact with the wheel surface of the wheel 400. On the other hand, the positioning wheel 2121 can rotate to ensure better contact between the positioning wheel 2121 and the wheel surface of the wheel 400.

[0220] Reference Figures 3 to 5 As shown, in one embodiment of the present invention, the linkage mechanism 22 includes a pivot arm 221, a first connecting rod 222, a second connecting rod 223, a first push-pull rod 224 and a second push-pull rod 225, the middle part of the pivot arm 221 is pivoted to the base 20; one end of the first connecting rod 222 is pivoted to one end of the pivot arm 221; one end of the second connecting rod 223 is pivoted to the other end of the pivot arm 221; one end of the first push-pull rod 224 is pivoted to one end of the first connecting rod 222, and the other end of the first push-pull rod 224 is connected to one of the two wheel positioning members 21; one end of the second push-pull rod 225 is pivoted to one end of the second connecting rod 223, and the other end of the second push-pull rod 225 is connected to the other of the two wheel positioning members 21.

[0221] That is, the pivot arm 221 can rotate around the vertical axis passing through the center thereof, and when the pivot arm 221 rotates around the vertical axis, the two ends of the pivot arm 221 rotate in different directions, and the two ends of the pivot arm 221 are respectively connected to the first link 222 and the second link 223, and the first link 222 is connected to the sliding plate 211 of one wheel positioning member 21 through the first push-pull rod 224, and the second link 223 is connected to the sliding plate 211 of the other wheel positioning member 21 through the second push-pull rod 225. 211. In this way, the two ends of the pivot arm 221 can drive the first connecting rod 222 and the second connecting rod 223 to move, and the first connecting rod 222 then drives the first push-pull rod 224 to move laterally along the vehicle, and the second connecting rod 223 then drives the second push-pull rod 225 to move laterally along the vehicle. Finally, the first push-pull rod 224 and the second push rod respectively drive the sliding plates 211 of the two wheel positioning members 21 to slide toward or in the opposite direction, thereby realizing the synchronous movement of the two wheel positioning members 21 toward or in the opposite direction.

[0222] In this embodiment, the linkage mechanism 22 of the above structure is adopted, and a linkage relationship is formed by using the pivot arm 221, the first connecting rod 222, the second connecting rod 223, the first push-pull rod 224 and the second push-pull rod 225, which can ensure that the two wheel locating parts 21 have a higher degree of synchronization, thereby improving the calibration accuracy.

[0223] Advantageously, the linkage mechanism 22 further includes a first guide assembly 226 and a second guide assembly 227. The first guide assembly 226 is disposed between the first push-pull rod 224 and the base 20 to guide the first push-pull rod 224 in lateral movement of the vehicle; the second guide assembly 227 is disposed between the second push-pull rod 225 and the base 20 to guide the second push-pull rod 225 in lateral movement of the vehicle. In other words, the first guide assembly 226 guides the first push-pull rod 224 in lateral movement of the vehicle, while the second guide assembly 227 guides the second push-pull rod 225 in lateral movement of the vehicle. This ensures smooth and reliable lateral movement of the first and second push-pull rods 224, 225 in lateral movement of the vehicle.

[0224] Reference Figure 6 As shown, in one embodiment of the present invention, the base 20 includes a first side seat 201, a second side seat 202 and a center seat 203, wherein the second side seat 202 and the first side seat 201 are arranged opposite to each other in the transverse direction of the vehicle; the center seat 203 is located between the first side seat 201 and the second side seat 202, and is fixed relative to the first side seat 201 and the second side seat 202; the first laser 300 is arranged on the center seat 203, one of the two wheel positioning members 21 is slidably arranged on the first side seat 201 along the transverse direction of the vehicle, and the other of the two wheel positioning members 21 is slidably arranged on the second side seat 202 along the transverse direction of the vehicle.

[0225] That is to say, the first laser 300 is installed on the center seat 203, and the first side seat 201 and the second side seat 202 are symmetrical with respect to the first laser beam 30 emitted by the first laser 300 on the center seat 203. Correspondingly, the two wheel locating members 21 are slidably installed on the first side seat 201 and the second side seat 202 respectively. In this way, it can be ensured that the two wheel locating members 21 are symmetrical with respect to the first laser beam 30 emitted by the first laser 300. The structure is simple and the installation is convenient.

[0226] For example, the first side seat 201, the second side seat 202 and the center seat 203 are connected by a connecting rod 204, so that the first side seat 201, the second side seat 202 and the center seat 203 are relatively fixed. Figure 3As shown, there are two connecting rods 204, the first side seat 201 is connected to one end of the two connecting rods 204, the second side seat 202 is connected to the other end of the two connecting rods 204, and the center seat 203 is fixed to the middle of the two connecting rods 204 through a fixing piece.

[0227] The first guide assembly 226 may include a first block 2261, which is fixed to the connecting rod 204 by a first fastener 2262, and a first sliding hole is provided on the first block 2261, and the first push-pull rod 224 can be slidably fitted in the first sliding hole. The second guide assembly 227 may include a second block 2271, which is fixed to the connecting rod 204 by a second fastener 2272, and a second sliding hole is provided on the second block 2271, and the second push-pull rod 225 can be slidably fitted in the second sliding hole. In this way, the motion guidance of the first push-pull rod 224 and the second push-pull rod 225 can be realized, and its structure is simple and easy to install.

[0228] Advantageously, the center base 203 extends longitudinally along the vehicle, and casters 205 are provided on the bottoms of the first side base 201, the second side base 202, and the center base 203. Thus, the center base 203, the first side base 201, and the second side base 202 form a T-shaped structure, which is more stable. Furthermore, the casters 205 facilitate movement of the vehicle centering device, thereby facilitating movement during calibration.

[0229] Reference Figure 11 、 Figure 13 and Figure 15 As shown, in one embodiment of the present invention, the light-aligning bracket 100 further includes a third locking member 14 , which is disposed between the light-aligning member 10 and the lifting seat 13 to lock and fix the light-aligning member 10 and the lifting seat 13 relative to each other.

[0230] That is to say, the third locking member 14 can be used to lock and fix the aiming member 10 and the lifting seat 13 relative to each other. In this way, after the aiming member 10 is moved to a predetermined position along the transverse direction of the vehicle so that the first laser beam 30 passes through the aiming hole H10 on the aiming member 10, the third locking member 14 can be used to lock and fix the aiming member 10 and the lifting seat 13, so that the aiming member 10 remains in the predetermined position, preventing the aiming member 10 from being shifted by other external forces, and ensuring that the first laser beam 30 will not shift after being aligned with the aiming hole H10.

[0231] Reference Figures 11 to 15 As shown, in one embodiment of the present invention, the light-aligning member 10 includes a sliding portion 101 and an extension portion 102. The sliding portion 101 is slidably provided on the lifting seat 13 along the transverse direction of the vehicle; the extension portion 102 is formed by extending downward from one side of the sliding portion 101, and the light-aligning hole H10 is opened on the extension portion 102.

[0232] In other words, the aiming member 10 mainly consists of a sliding portion 101 and an extension portion 102. The sliding portion 101 is capable of sliding on the lifting base 13 in the transverse direction of the vehicle, while the extension portion 102 is located on one side of the sliding portion 101 and is formed integrally with the sliding portion 101. Therefore, when the sliding portion 101 slides, the extension portion 102 can slide with the sliding portion 101, thereby adjusting the position of the aiming hole H10 in the transverse direction of the vehicle.

[0233] In this embodiment, the sliding portion 101 slides laterally in the vehicle to ensure that the alignment hole H10 can be reliably and stably adjusted in the lateral position of the vehicle, while the extension portion 102 extends downward, and the alignment hole H10 is provided on the extension portion 102. In this way, the alignment hole H10 can be kept away from the sliding portion 101 and the lifting seat 13, making it easier to align the alignment hole H10 with the laser beam.

[0234] Exemplarily, the third locking member 14 includes a first handle 141 and a first screw portion 142 connected to the first handle 141. A side block portion 103 is provided between the sliding portion 101 and the extending portion 102. The side block portion 103 is located on one side of the sliding portion 101, and the side block portion 103 is provided with a strip hole 2111 extending transversely of the vehicle. A threaded hole is provided on the sliding portion 101. The first handle 141 is located on the outside of the side block portion 103, and the first screw portion 142 passes through the strip hole 2111 and is threadedly connected to the threaded hole. In this way, by operating and rotating the first handle 141, the first handle 141 can lock and fix the side block portion 103 on the sliding portion 101. In this way, the sliding portion 101 and the lifting seat 13 can be locked and fixed. The operation is convenient and the locking is reliable.

[0235] Reference Figures 11 to 15 As shown, in one embodiment of the present invention, the lifting seat 13 includes a horizontal plate 131 and a vertical plate 132, and the light-aiming member 10 is slidably arranged on the horizontal plate 131 along the transverse direction of the vehicle; the vertical plate 132 is connected to the horizontal plate 131 to form an L shape, and the vertical plate 132 is movably arranged on the movable frame 12.

[0236] That is, the lifting seat 13 is connected by a horizontal plate 131 and a vertical plate 132 to form an L-shaped structure. The sliding plate 211 of the light-aiming member 10 can be installed on the horizontal plate 131 through a sliding assembly to achieve transverse sliding along the vehicle relative to the lifting seat 13, and the vertical plate 132 is movably provided on the movable frame 12 in the vertical direction. In this way, the lifting seat 13 can be moved vertically, and its structure is simple and easy to install.

[0237] Reference Figures 11 to 13 and Figure 15As shown, in one embodiment of the present invention, the light-receiving positioning member 11 includes a pivot seat 112 and a connecting member 113, wherein the pivot seat 112 is pivotally arranged on the light-receiving member 10 around the vertical axis; the connecting member 113 is connected between the pivot seat 112 and the scale 111.

[0238] That is to say, the light-receiving positioning member 11 is mainly composed of a pivot seat 112, a connecting member 113 and a scale 111. The scale 111 is connected to the pivot seat 112 through the connecting member 113, and the pivot seat 112 is pivotally provided on the light-receiving member 10 around a vertical axis. In this way, when the pivot seat 112 pivots relative to the light-receiving member 10, the scale 111 also pivots with the pivot seat 112, thereby adjusting the angle of the scale 111.

[0239] In this embodiment, the pivot seat 112 is pivotally connected to the aiming member 10 to facilitate the pivoting of the aiming member 10, and the scale 111 is connected to the pivot seat 112 through the connecting member 113, so that the scale 111 can be opposite to the extension portion 102 of the aiming member 10, thereby facilitating the reception of the laser beam projected by the aiming head.

[0240] Exemplarily, a clearance hole 1311 is provided on the horizontal plate 131, and the connecting member 113 includes a horizontal portion 1131 and a vertical portion 1132, one end of the horizontal portion 1131 is connected to the pivot seat 112, one end of the vertical portion 1132 is connected to the horizontal portion 1131, and the other end of the vertical portion 1132 passes downward through the clearance hole 1311 and is connected to the scale 111.

[0241] That is to say, the horizontal part 1131 and the vertical part 1132 are connected to form an L-shaped connecting member 113, the scale 111 is connected to the vertical part 1132, and the vertical part 1132 is passed through the air avoidance hole 1311. In this way, the L-shaped connecting member 113 is used to facilitate the connection between the scale 111 and the pivot seat 112.

[0242] Advantageously, the aiming member 10 is provided with a damper 15 that is pivotable around the vertical axis, and the pivot seat 112 is sleeved on the damper 15 and fixed relative to the damper 15 in the circumferential direction. Figure 13 In the example, the sliding portion 101 is provided with an upwardly protruding truncated platform 104, and the damper 15 is pivotally arranged in the truncated platform 104. The upper end of the damper 15 is a polygonal socket portion, and the pivot seat 112 has a blind hole. The blind hole is pivotally sleeved outside the truncated platform 104, and the top wall of the blind hole is provided with a polygonal groove H112. The socket portion of the damper 15 is socketed with the groove H112 of the blind hole, thereby realizing the circumferential relative fixation of the pivot seat 112 and the damper 15.

[0243] In this embodiment, the aiming member 10 is pivotally mounted on the damper 15. This provides the aiming member 10 with relatively appropriate damping during rotation, ensuring more accurate and reliable rotational adjustment of the aiming member 10. Furthermore, the damping of the damper 15 can be adjusted to provide the aiming member 10 with appropriate damping.

[0244] Optionally, the light receiving fixed member 11 is provided with two guide blocks 17a, and the two guide blocks 17a are provided with slide grooves, and the horizontal slide rail 18 is slidably arranged in the slide grooves of the two guide blocks 17a. That is, the horizontal slide rail 18 is slidably assembled in the slide grooves of the two guide blocks 17a, and the guide blocks 17a are installed on the light receiving fixed member 11. Figure 11 and Figure 12 In the example, two guide blocks 17a are respectively installed at both ends of the pivot seat 112 in the transverse direction of the vehicle. In this way, the horizontal slide rail 18 and the guide blocks 17a slide together to achieve reliable and smooth sliding of the horizontal slider along the transverse direction of the vehicle.

[0245] For example, one of the two guide blocks 17a is slidably connected to the light-receiving fixed member 11 via a dovetail structure, and one of the two guide blocks 17a is fixedly connected to the light-receiving fixed member 11 via a fastener. Figure 11 and Figure 12 In the example, a dovetail rail 17b extending vertically is provided on a guide block 17a, a dovetail groove 1121 extending vertically is provided at one end of the pivot seat 112, a threaded hole is provided on the other guide block 17a, and a through hole is provided at the other end of the pivot seat 112. During assembly, the dovetail rail 17b on one guide block 17a can be first inserted into the dovetail groove 1121 at one end of the pivot seat 112, and then fasteners such as screws can be passed through the through hole on the other end of the pivot seat 112 and connected to the threaded hole on the other guide block 17a. In this way, the horizontal guide rail can be installed on the pivot seat 112, which is convenient to install and simple to disassemble.

[0246] Reference Figures 11 to 12 As shown, in some embodiments of the present invention, the alignment cursor fixed frame further includes a driving device 19, which is provided on the movable frame 12 and connected to the lifting seat 13, for driving the lifting seat 13 to move vertically. In this way, the driving device 19 can be used to drive the lifting seat 13 to move vertically, so that the height position of the lifting seat 13 can be easily adjusted.

[0247] Reference Figures 11 to 12As shown, in one embodiment of the present invention, the driving device 19 includes a screw rod 191, a screw rod nut 192 and a driving member 193. The screw rod 191 is pivotally arranged on the movable frame 12 around its own axis and extends vertically; the screw rod nut 192 is threadedly fitted on the screw rod 191 and fixedly connected to the lifting seat 13; the driving member 193 is connected to the screw rod 191 to drive the screw rod 191 to rotate.

[0248] When the driving member 193 drives the screw rod 191 to rotate, the screw nut 192 can move vertically up and down on the screw rod 191, and the lifting seat 13 is fixed on the screw nut 192, so the screw nut 192 can drive the lifting seat 13 to move vertically up and down. In this way, the driving of the lifting seat 13 can be realized. Its structure is simple, and by utilizing the cooperation of the screw rod 191 and the screw nut 192, the height adjustment accuracy of the lifting seat 13 is high.

[0249] Optionally, the driving member 193 includes a crank 1931 and a gear set 1932. The crank 1931 is pivotally mounted on the movable frame 12. The gear set 1932 includes at least a driving gear and a driven gear. The driving gear is mounted on the crank 1931 and is driven to rotate by the crank 1931. The driven gear is mounted on the lead screw 191 and meshes with the driving gear. In actual use, the crank 1931 can be operated to drive the driving gear to rotate. The driving gear further drives the driven gear on the lead screw to rotate, and the driven gear can drive the lead screw 191 to rotate. In this way, by operating the crank 1931, the height of the lifting seat 13 can be adjusted as needed, and the operation is simple and convenient.

[0250] Exemplarily, the crank 1931 is pivotally disposed on the side of the mobile frame 12, and the driving gear and the driven gear are bevel gears, so that the driven gear on the screw 191 is conveniently engaged with the driving gear on the crank 1931. In addition, the crank 1931 is disposed on the side of the mobile frame 12 for easy operation.

[0251] Advantageously, the drive device 19 further includes a fourth locking member 194, which is disposed between the crank handle 1931 and the movable frame 12 and is used to lock the crank handle 1931 to the movable frame 12. Thus, after the lift base 13 is adjusted to a desired height by operating the crank handle 1931, the fourth locking member 194 can be used to lock the crank handle 1931 relative to the movable frame, preventing the lift base 13 from rotating due to other external forces after adjustment, thereby ensuring that the lift base 13 can be reliably maintained in the desired position.

[0252] Reference Figures 13 and 14As shown, in one embodiment of the present invention, the light-aligning fixing frame further includes an adjustable limiter 16, which is provided on the light-aligning member 10 and is used to limit the light-receiving fixing member 11 after the light-receiving fixing member 11 is rotated and adjusted to a predetermined position.

[0253] That is to say, when the light-receiving positioning member 11 is rotated and adjusted to the desired predetermined position, that is, the position where the scale 111 is perpendicular to the laser beam, the adjustable limit member 16 can be used to stop the light-receiving positioning member 11, limit the rotation of the light-receiving positioning member 11, and then limit the light-receiving positioning member 11 to this position, and remember the position where the scale 111 is perpendicular to the laser beam.

[0254] Exemplarily, the adjustable stopper 16 includes a screw 161 and a stopper 163. The screw 161 is disposed on the aiming member 10 and extends transversely of the vehicle. The stopper 163 is disposed on the light-receiving position-fixing member 11 and has a stopper slope S16 that abuts the end of the screw 161. Thus, by rotating the screw 161 to move transversely of the vehicle, the end of the screw 161 contacts the stopper slope S16, acting as a stopper for the light-receiving position-fixing member 11 and effectively memorizing the position of the scale 111. Furthermore, the screw 161 is adjustable, facilitating the stoppering of the light-receiving position-fixing member 11 at different positions. Operation is convenient, and the stoppering is reliable.

[0255] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0256] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A vehicle calibration device, characterized in that: include: An alignment bracket having a light-receiving positioning member; A wheel alignment fixture having two wheel locating members for locating two opposite wheels in the transverse direction of the vehicle; a first laser, disposed between the two wheel locating members, for emitting a first laser beam extending in the longitudinal direction of the vehicle and projecting the first laser beam onto the light-receiving positioning member; when the two wheel locating members are locating two opposing wheels, the first laser is located at the midpoint of a line connecting the two opposing wheels; The wheel alignment fixture includes a base and a linkage mechanism, the first laser is disposed on the base, and two wheel alignment components are disposed on the base opposite to each other in the transverse direction of the vehicle and symmetrically with respect to the first laser beam; the linkage mechanism is connected between the two wheel alignment components to enable the two wheel alignment components to synchronously move toward or in opposite directions relative to the base in the transverse direction of the vehicle; The alignment bracket includes an alignment member and a horizontal slide rail. The alignment member has a pair of apertures for allowing the first laser beam to pass through. The light-receiving positioning member is pivotable relative to the alignment member about a vertical axis. The light-receiving positioning member has a scale. The scale is opposite to the alignment apertures and extends in the transverse direction of the vehicle so that the first laser beam emitted from the alignment aperture can be projected onto the scale. The horizontal slide rail is slidably provided on the light-receiving positioning member in the transverse direction of the vehicle and is parallel to the scale. The wheel positioning member includes a sliding plate, a wheel surface positioning member and a wheel side positioning member. The sliding plate is slidably arranged on the base along the transverse direction of the vehicle; the wheel surface positioning member is arranged on the sliding plate to stop and position the wheel surface of the wheel; the wheel side positioning member is arranged on the sliding plate to stop and position the outer side surface of the wheel.

2. The vehicle calibration device according to claim 1, characterized in that: The alignment bracket further comprises: Mobile racks; A lifting seat, the lifting seat being movably arranged on the movable frame in a vertical direction; The light-aiming member is slidably arranged on the lifting seat along the transverse direction of the vehicle, and the light-receiving positioning member is pivotally arranged on the light-aiming member around the vertical axis.

3. The vehicle calibration device according to claim 1, characterized in that: The wheel locating member further comprises: A first locking member is provided between the base and the sliding plate, and is used to lock and fix the sliding plate relative to the base.

4. The vehicle calibration device according to claim 1, characterized in that: The wheel locating member further comprises: A second laser is movably arranged on the sliding plate and is used for emitting a second laser beam extending in the transverse direction of the vehicle to locate the center of the wheel.

5. The vehicle calibration device according to claim 4, characterized in that: The wheel locating member further comprises: a sliding arm, the sliding arm being slidably disposed on the sliding plate along the longitudinal direction of the vehicle; a sliding rod, the sliding rod being slidably disposed on the sliding arm in a vertical direction, and the second laser being mounted on the sliding rod; A second locking member is provided between the sliding arm and the sliding rod, and is used to lock and fix the sliding rod relative to the sliding arm, so that the sliding rod can be selectively fixed at a predetermined height.

6. The vehicle calibration device according to claim 1, characterized in that: The wheel tread positioning member includes a positioning wheel, which is arranged on the sliding plate and has an axis extending in the transverse direction of the vehicle.

7. The vehicle calibration device according to claim 1, characterized in that: The linkage mechanism comprises: a pivot arm, wherein a middle portion of the pivot arm is pivotally connected to the base; a first connecting rod, one end of which is pivotally connected to one end of the pivot arm; a second connecting rod, one end of the second connecting rod being pivotally connected to the other end of the pivot arm; a first push-pull rod, one end of which is pivotally connected to one end of the first connecting rod, and the other end of which is connected to one of the two wheel positioning members; A second push-pull rod, one end of which is pivotally connected to one end of the second connecting rod, and the other end of which is connected to the other of the two wheel locating members.

8. The vehicle calibration device according to claim 7, characterized in that: The linkage mechanism further includes a first guide assembly and a second guide assembly; The first guide assembly is provided between the first push-pull rod and the base to guide the first push-pull rod to move laterally along the vehicle. The second guide assembly is provided between the second push-pull rod and the base to guide the second push-pull rod to move laterally along the vehicle.

9. The vehicle calibration device according to claim 1, characterized in that: The base comprises: First side seat; a second side seat, the second side seat being arranged opposite to the first side seat in a transverse direction of the vehicle; a central seat, the central seat being located between the first side seat and the second side seat and being fixed relative to the first side seat and the second side seat; The first laser is arranged on the central seat, one of the two wheel positioning members is slidably arranged on the first side seat along the transverse direction of the vehicle, and the other of the two wheel positioning members is slidably arranged on the second side seat along the transverse direction of the vehicle.

10. The vehicle calibration device according to claim 9, characterized in that: The central seat extends longitudinally along the vehicle, and casters are respectively provided at the bottoms of the first side seat, the second side seat and the central seat.

11. The vehicle calibration device according to claim 2, characterized in that: The alignment bracket further comprises: A third locking member is provided between the light-aiming member and the lifting seat, and is used to lock and fix the light-aiming member and the lifting seat relative to each other.

12. The vehicle calibration device according to claim 2, characterized in that: The light-aligning member comprises: a sliding portion, the sliding portion being slidably provided on the lifting seat in a transverse direction of the vehicle; An extension portion is formed by extending downward from one side of the sliding portion, and the light-aligning hole is provided on the extension portion.

13. The vehicle calibration device according to claim 2, characterized in that: The lifting seat includes: a horizontal plate, wherein the light aiming member is slidably arranged on the horizontal plate in the transverse direction of the vehicle; A vertical plate is connected to the horizontal plate to form an L-shape, and the vertical plate is movably arranged on the movable frame.

14. The vehicle calibration device according to claim 13, characterized in that: The light-receiving positioning member comprises: a pivot seat, the pivot seat being pivotally arranged on the light-aiming member around the vertical axis; A connecting member is connected between the pivot seat and the scale.

15. The vehicle calibration device according to claim 14, characterized in that: The horizontal plate is provided with a clearance hole, and the connecting member includes a horizontal part and a vertical part. One end of the horizontal part is connected to the pivot seat, one end of the vertical part is connected to the horizontal part, and the other end of the vertical part passes downward through the clearance hole and is connected to the scale.

16. The vehicle calibration device according to claim 14, characterized in that: The light-aiming member is provided with a damper which is pivotable around the vertical axis. The pivot seat is sleeved on the damper and fixed relative to the damper in a circumferential direction.

17. The vehicle calibration device according to claim 1, characterized in that: The scale has a calibration scale and offset reference scales located on both sides of the calibration scale. When the first laser beam is projected onto the calibration scale, the scale is perpendicular to the first laser beam.

18. The vehicle calibration device according to claim 17, characterized in that: The light receiving fixed member is provided with two guide blocks, the two guide blocks are provided with sliding grooves, and the horizontal slide rail is slidably arranged in the sliding grooves of the two guide blocks.

19. The vehicle calibration device according to claim 18, characterized in that: One of the two guide blocks is slidably connected to the light-receiving fixed member via a dovetail structure, and the other of the two guide blocks is fixedly connected to the light-receiving fixed member via a fastener.

20. The vehicle calibration device according to claim 2, characterized in that: The alignment bracket further comprises: A driving device is provided on the movable frame and is connected to the lifting seat, and is used for driving the lifting seat to move vertically.

21. The vehicle calibration device according to claim 20, characterized in that: The driving device comprises: A screw rod, the screw rod is pivotally mounted on the movable frame about its own axis and extends vertically; A screw nut, the screw nut being threadedly sleeved on the screw and fixedly connected to the lifting seat; A driving member is connected to the screw rod and is used to drive the screw rod to rotate.

22. The vehicle calibration device according to claim 21, characterized in that: The driving member includes a crank and a gear set, and the crank is pivotally mounted on the movable frame; The gear set includes at least a driving gear and a driven gear. The driving gear is provided on the crank and driven to rotate by the crank. The driven gear is provided on the screw rod and meshes with the driving gear.

23. The vehicle calibration device according to claim 22, characterized in that: The driving device further comprises: A fourth locking member is provided between the crank handle and the movable frame, and is used to lock and fix the crank handle and the movable frame.

24. The vehicle calibration device according to claim 1, characterized in that The light-aligning and positioning bracket further includes an adjustable limiting member, which is provided on the light-aligning member and is used to limit the light-receiving and positioning member after the light-receiving and positioning member is rotated and adjusted to a predetermined position.

25. The vehicle calibration device according to claim 24, characterized in that: The adjustable limiter comprises: a screw rod, the screw rod being provided on the light-aiming member and extending in the transverse direction of the vehicle; A stopper is provided on the light-receiving positioning member, and the stopper has a stopper slope, and the stopper slope abuts against the end of the screw rod.

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