CN205593762U - Synchronous random adjustable image formula four -wheel aligner calibrating device in position - Google Patents

Abstract

The utility model relates to a synchronous random adjustable image formula four -wheel aligner calibrating device in position belongs to automotive inspection equipment's calibrating device. Including the lazytongs drag, prenex zero point test jig, preceding left side platform inspection part, preceding right side platform inspection part, back left side platform inspection part, back right side platform inspection part, simulation wheel hub, four -wheel fixture assembly. The advantage lies in: overcome that present calibrating device structure complicacy results in bulky, from great, the assembly degree of difficulty is high, the precision low grade is not enough, provides basic guarantee for precision measurement wheel alignment parameter more.

Description

The random adjustable image-type four-wheel position finder calibrating installation of sync bit

Technical field

This utility model relates to the calibrating installation of a kind of automotive inspection equipment of auto industry field, and in particular, it relates to And the one random adjustable image-type four-wheel position finder calibrating installation of sync bit.

Background technology

Vehicle handling stability and roadholding are to be ensured by the Proper Match of vehicle wheel alignment parameter, parameter Any one misalignment will cause automobile loss of control stability and straight-line travelling ability, accelerates tire wear, in oil consumption Rise, degradation problem under safety.

Four-wheel position finder is the most important detection equipment of inspection wheel alignment parameter.The guarantor of whole nation four-wheel position finder at present The amount of having reaches 1020203070 multiple stage, and is being incremented by with the speed of annual 10201%.But whether its production process Or it uses process, is the most all difficult to various four-wheel position finders are carried out accurate calibration, it is impossible to ensure four-wheel position finder The accuracy of detection of itself.

Four-wheel position finder can detect multiple wheel alignment parameter, and most important four parameters are camber angle, toe-in Angle, kingpin inclination and castor.Four-wheel position finder can be by different detection methods to the detection of above-mentioned parameter Realize with sensor, owing to wheel castor and kingpin inclination directly can not be surveyed by the sensor of four-wheel position finder Amount, but indirectly measured by corresponding mathematical model, so, different four-wheel position finder accuracy of detection are tested Just abnormal difficult.At present, the verifying attachment that four-wheel position finder manufacturer uses mainly has following six kinds:

1, the fixed caliberating device in inclination angle, this device is only capable of four-wheel position finder is measured camber angle and the detection of toe-in angle Precision is tested, and can not examine the precision of four-wheel position finder detection castor and kingpin inclination etc. Test.

2, the verifying attachment of the four-wheel position finder of Jilin University's research and development

Utility model patent number: ZL03110944.6, utility model people: Su Jian, the applying date: on January 23rd, 2003, Grant date: on December 22nd, 2004, applicant country: China.Utility model patent number: ZL03211159.9, utility model people: Su Jian, the applying date: on January 23rd, 2003, grant date: on November 3rd, 2004, applicant country: China.This patent is led to Cross a series of leverage and complete the simulation to wheel orientation angle.This device in use there is problems in that

(1) structure is complicated, and requirement on machining accuracy is high, adds cost；

(2) transmission chain length, cumulative error is big；

(3) Kingpin inclination and stub camber angle metering method are vernier metering, manufacture complexity；

(4) thrust angle and steering angle can not be checked.

3, the caliberating device of the four-wheel position finder of Liaoning Province's quantitative study institute research and development, this device in use exists Problems with:

(1) structure is complicated, and requirement on machining accuracy is high, adds cost；

(2) transmission chain length, cumulative error is big；

(3) can not check and help castor, steering angle；

(4) left and right two-wheeled can not self-movement, antero posterior axis can not self-movement；

(5) stated accuracy, principle, parameter all do not meet the requirement of Ministry of Communications's standard JT/T505-2004.

4, the assay device of the vehicle vertically and horizontally flat non-relating angle modulation type fourth wheel orientator of Jilin University's research and development, should Device in use there is problems in that

(1) sphere guide rail structure is used to carry out the transmission of power, higher to sphere guide rail requirement on machining accuracy；

(2) foreground test portion turntable operation hand wheel position dispersion, operation inconvenience；

(3) rear axle test portion structure is complicated, adds processing cost；

(4) although using self-centering chuck to be accurately positioned, but the overall weight of equipment is added；

5, the assay device of the explicit four-wheel position finder of monolithic devices Vehicular data of Jilin University's research and development, this device exists There is problems in that in using

(1) using arc-shaped guide rail to adjust castor and kingpin inclination, this arc-shaped guide rail machining accuracy is high, increases Processing cost；

(2) adjusting caster angle by feed screw nut, this sets of transmission mechanism adds weight of equipment and processing cost；

(3) simulation stub lower end by turn to and be connected with cross axle, add connecting link, owing to this equipment will Modulus is intended main pin axis and is passed through spider center, and therefore assembly difficulty is bigger.

6, the assay device of the portable digital display vehicle four-wheel position indicator of Jilin University's research and development, this device makes There is problems in that in

(1) integral device volume is big, not readily transportable；

(2) in zero point inspection checkout procedure, easily there is registration shakiness or without registration phenomenon in sensor, affects four-wheel fixed The calibrating quality of position instrument；

(3) upper and lower slide rail locking mechanism structure is complicated, adds processing, assembly cost.

Summary of the invention

This utility model provides a kind of random adjustable image-type four-wheel position finder calibrating installation of sync bit, existing to solve Four-wheel position finder calibrating installation in use occurs that device structure complexity causes that volume and weight is the biggest, is not easy to The problems such as transport, processing cost is higher and assembly difficulty is relatively big, precision is the highest, thus realize extensively applying on market Four-wheel position finder carry out measurement and calibration.

This utility model adopts the technical scheme that: include lazy-tongs trailing frame, prenex zero point test jig, front left Platform test portion, front right platform test portion, rear left platform test portion, rear right platform test portion, simulation wheel hub, four-wheel Fixture assembly；Four ground castors of prenex zero point test jig respectively with the left side of the ground rectangular frame of lazy-tongs trailing frame Groove contact is the most tangent, the U-type groove of the synchronous slider of lazy-tongs trailing frame and the dragging simulating wheel hub simulating wheel hub Pin contacts is the most tangent, before front left platform test portion and front right platform test portion are separately mounted in prenex zero point test jig The left end of crossbeam and right-hand member, connect with alignment pin and bolt are fixing, and rear left platform test portion and rear right platform test portion are divided The left end of the rear cross beam not being arranged in prenex zero point test jig and right-hand member, connect with alignment pin and bolt are fixing, four Simulation wheel hub simulation hub axle sleeve respectively with front left platform test portion, front right platform test portion, rear left platform test portion, The simulation wheel hub chuck transverse axis of rear right platform test portion keeps axis consistent and fixedly sleeved；Four four-wheel fixture assemblies 3D reflector is fixedly sleeved with the simulation hub axle sleeve of corresponding simulation wheel hub by large through-hole respectively, 3D reflector The axis of rotation of axis of rotation, the simulation axis of rotation of hub axle sleeve and each self-corresponding simulation wheel hub chuck transverse axis exist On straight line.

Described lazy-tongs trailing frame includes ground rectangular frame and four vertical molectrons, ground rectangular frame be by Article four, certain thickness slender type cuboid welds together a planar rectangular framework of composition, and it is integrally fixed at level Ground, open an axis respectively in the centre position of around two cuboids and be parallel to the straight of left stringer axis Logical groove, the end face outside at its two cuboids of left and right is respectively welded the vertical molectron of front left and vertical group of rear left Component and the vertical molectron of front right and the vertical molectron of rear right.The vertical molectron of front left and the symmetry of the vertical molectron of front right Face is arrived to the distance molectron vertical with rear left of the front end face of ground rectangular frame and the plane of symmetry of the vertical molectron of rear right The distance of the rear end face of ground rectangular frame is equal.

Described vertical molectron includes vertical elongate rod, side plate, synchronous slider, slider locking screw.The thinnest Stock is a longilineal rod member, and lower surface contacts with ground, and side is fixing weldering with the lateral surface of ground rectangular frame Connect, side's plate be one have completely through the rectangular flat structural member of circular arc notch, its Surface Machining has two slotted eyes, Being connected by screw and vertical elongate rod surface are fixing, synchronous slide block is a cuboid, and its side is machined with U-shaped Groove and the simulation dragging pin contacts of wheel hub are the most tangent, opposite side have from top to bottom completely through straight trough mouth, pass through slide block Lock-screw is connected with the circular arc notch of side's plate and fixes with nut.

Described prenex zero point test jig part includes front beam, rear cross beam, left longeron, right vertical beam, circuit box, front Left set of closes supporting leg, front right combined support lower limb, rear left combined support lower limb and rear right combined support lower limb.Front beam two ends Through hole and left longeron are equipped with the front end of right vertical beam and use that nut is fixing is connected, the through hole at rear cross beam two ends and left longeron Being equipped with and use nut to be fixedly connected into the rear end of right vertical beam is the rectangular frame of a plane, and circuit box is solid with screw Dingan County is contained on the bottom surface in rear cross beam centre position, the front left combined support lower limb that is vertically arranged, front right combined support lower limb, The bottom surface at the top end face of rear left combined support lower limb and rear right combined support lower limb and four angles of rectangular frame contacts and uses Screw is fixed.

The bar class formation part that structure that described front beam is made up of square tube with rear cross beam is identical, the left end of front beam with The front left through hole installing front left multidiameter and front right multidiameter and front right through hole, a left side for rear cross beam it is provided with before and after right-hand member The rear left through hole installing rear left multidiameter and rear right multidiameter and rear right through hole it is provided with before and after end and right-hand member；Front beam On front left through hole vertical with the side at front right through hole place with the axis of rotation of front right through hole and front left through hole, rear cross beam On rear left through hole vertical and front with the side at rear right through hole place with the axis of rotation of rear right through hole and rear left through hole The metapore of the rear left through hole in the front pitch-row of the front left through hole on crossbeam and front right through hole and rear cross beam and rear right through hole away from Equal.

Described left longeron and the bar class formation part that right vertical beam is that structure is identical, the interlude of left longeron and right vertical beam is served as reasons The left intermediate beam that pipe is made and right intermediate beam, the two ends of left intermediate beam are welded with front left multidiameter and rear left ladder The axis of rotation conllinear of axle, front left multidiameter, left intermediate beam and rear left multidiameter；The two ends of right intermediate beam are welded and fixed There is the axis of rotation conllinear of front right multidiameter and rear right multidiameter, front right multidiameter, right intermediate beam and rear right multidiameter； Front left multidiameter, front right multidiameter, rear left multidiameter are identical with the structure of rear right multidiameter, front left multidiameter, front right One end of the major diameter axle of multidiameter, rear left multidiameter and rear right multidiameter is and left intermediate beam connects with right intermediate beam two ends The connection end connect, another of the major diameter axle of front left multidiameter, front right multidiameter, rear left multidiameter and rear right multidiameter End is the end of thread being threaded, and the end of thread is the connection end being connected with rear cross beam left and right end with front beam, and uses Nut is fixing to be connected；The end of thread of front left multidiameter, front right multidiameter, rear left multidiameter and rear right multidiameter respectively with Minor diameter light axle head is connected.

Described front left combined support lower limb, front right combined support lower limb, rear left combined support lower limb and rear right combined support lower limb knot Structure is identical, all include ground castor, trundle bracket, castor connecting board, supporting leg reinforcing plate, supporting leg circle Pipe, supporting leg connecting plate, universal adjustment lower margin, long ground caster axle.The bar class knot that supporting leg pipe is made up of pipe Component, its upper end is fixedly welded with the supporting leg connecting plate of the rectangle vertical with self axis of rotation, plate is evenly arranged Having the through hole installing screw, the lower end of supporting leg pipe is welded with ground castor connecting board, and ground castor connecting board is rectangle Slab construction part, it is vertical with the axis of rotation of supporting leg pipe, the side of supporting leg pipe with ground castor connecting board it Between be welded with supporting leg reinforcing plate, the lower end of ground castor connecting board is provided with universal adjustment lower margin, the axle of universal adjustment lower margin Line is perpendicular to the ground, and universal adjustment lower margin is threadeded with ground castor connecting board, and ground trundle bracket is a forked members, Its top installing plate is with bolts with ground castor connecting board, vertically solid on the installing plate bottom surface, top of ground trundle bracket Dingan County fills two lower ends being parallel to each other and is machined with the installation arm of horizontal through hole, and long ground caster axle uses bearing to be arranged on ground For being rotationally connected in horizontal through hole on trundle bracket, lower margin take turns be sleeved in lower margin wheel support two vertically-mounted arms it Between long ground caster axle on be bonded.

Described front left platform test portion, front right platform test portion, rear left platform test portion and rear right platform test portion Component structural is identical, all includes corner adjustment member, mechanical interface and horizontal adjustment part, caster The base backing plate of adjustment member, described front left platform test portion and front right platform test portion and the left end of front beam are with right End in contact also uses that alignment pin and bolt are fixing to be connected, rear left platform test portion and the base backing plate of rear right platform test portion Contact and use alignment pin and bolt to fix with the left end of rear cross beam with right-hand member to be connected.

The described three dimensional angle adjustment member in front left platform test portion is mainly by base backing plate, motor three, stub Fork support, central shaft, stub fork, stub bolt axle, mechanical arm type stub bar, stub lock-screw, mechanical arm master Pin locked block, vertical survey dish form.Base backing plate is arranged on the left end of front beam and uses alignment pin to fix with bolt, Motor three is that measuring cell drives again element, and its input is fixing with base backing plate bolt to be connected, stub fork Frame is fixing with motor three outfan bolt to be connected, and central shaft inserts in the through hole on two fork walls of stub fork support as turning Being dynamically connected, stub fork uses stub bolt axle to be connected with central axis, and stub is inserted in the lower end of mechanical arm type stub bar The top of fork connects for fixing, and vertical survey dish is fixedly mounted on the upper end of mechanical arm type stub bar, and mechanical arm stub is locked Tight block is sleeved on mechanical arm type stub bar and connects for fixing.

The described mechanical interface in front left platform test portion and horizontal adjustment part mainly by simulation wheel hub chuck transverse axis, Transverse axis contiguous block, pull bar, stub lock-screw, swing arm and zero-point positioning block composition.Swing arm is a forked members, It is to be flexibly connected that the fork of swing arm right-hand member is sleeved on central shaft two ends, and it is left that the right-hand member of simulation wheel hub chuck transverse axis inserts swing arm Connecting for fixing in the through hole of end, transverse axis contiguous block is fixedly sleeved with simulation wheel hub chuck transverse axis, and pull bar is a bent plate Shape component, the left end of pull bar uses screw to be fixed on the trailing flank of transverse axis contiguous block, the right-hand member of pull bar and mechanical arm master The trailing flank of pin locked block is threaded by stub lock-screw, and the bottom face of zero-point positioning block is placed on base backing plate In processing plane, the top end face of zero-point positioning block contacts connection with the bottom surface of swing arm left end.

The described caster adjustment member in front left platform test portion includes kingpin inclination adjustment member and stub Back rake angle adjustment member, mainly by motor one, L-square, motor two, plectane, mechanical arm main pin connecting block, machine Mechanical arm stub connector, linear bearing form.Motor one and motor two are that measuring cell drives again element, right angle At right angles and there is reinforcement in two plate faces of plate, and motor one input is fixing with base backing plate to be connected, its output end face with The horizontal plane of L-square is fixing to be connected, the vertical plane of L-square and motor two is fixing connects, the output end face of motor two and Plectane is fixing to be connected, the axis of motor one and the symmetrical centre of plectane on same vertical line, mechanical arm stub connector Being a forked members, the long-armed end of plectane is rotationally connected with mechanical arm stub connector, mechanical arm main pin connecting block It is the centre cuboid that has screwed hole with through-hole side face, mechanical arm stub connector and mechanical arm main pin connecting block Being rotationally connected, mechanical arm main pin connecting block is fixedly sleeved with linear bearing, and linear bearing slides with mechanical arm type stub bar Connect.

Described simulation wheel hub include flap, crescent moon bent plate, simulation hub axle sleeve, drag pin, flange copper sheathing, five Angle star handle, triangular reinforcing plate.Flap is a symmetrical structure, and there is a large through-hole center of cross frame, In the middle of ten literal medial surface lower ends, there is a small through hole, drag the long multidiameter of pin and the small through hole fixed cover of flap Connecing, the short multidiameter dragging pin contacts and tangent with the U-type groove of the synchronous slider in vertical molectron, simulates hub spindle Overlapping fixedly sleeved with the large through-hole of flap, five-pointed star handle is pressed from both sides with simulation wheel hub by the screwed hole in simulation hub axle sleeve Set transverse axis is fixing to be connected, and the two ends, left and right of a simulation hub axle sleeve fixedly sleeved flange copper sheathing respectively, cross frame is right Side surface up and down before and after four positions weld an identical triangle with between simulation hub axle sleeve outer surface respectively Reinforcing plate, the top and bottom of the left surface of flap are respectively welded a crescent moon bent plate, simulation hub axle sleeve and simulation wheel Hub chuck transverse axis keeps axis the most fixedly sleeved.

Described four-wheel fixture assembly includes 3D reflector, center fixture, locking clamping apparatus, end chucking appliance, elongated Cylindrical bar, elongated fixture, fluctuation handwheel.Center fixture in four-wheel fixture assembly, locking clamping apparatus, end chucking appliance are equal Having three through holes, three axis that three through holes of all fixtures are linked to be from top to bottom are parallel, and center fixture is positioned at centre Position is fixed, and with a horizontal large through-hole in the middle of the fixture of center, 3D reflector is by large through-hole and simulation wheel hub Axle sleeve is fixedly sleeved, and two locking clamping apparatus are hitting exactly the distribution symmetrical above and below of fixture, respectively with the upper crescent moon simulating wheel hub Bent plate contacts and tangent with lower crescent bent plate, two elongate cylinder bars sequentially pass through respectively locking clamping apparatus, center fixture, Two through holes that lower locking clamping apparatus is symmetrical, two end chucking appliances are symmetrically distributed in the upper end of locking clamping apparatus and lower locking clamp The lower end of tool, is overlapped and fixedly sleeved with the upper and lower end face of elongate cylinder bar respectively by two clear openings, elongated fixture Run through middle through hole from top to bottom and lock with fluctuation handwheel is fixing.

The groove of this utility model ground rectangular frame ensure that whole device in pushing course can straight-line travelling, with U-type groove and side's circular arc notch of plate, the straight trough mouth of synchronous slider of step slide block ensure that four simulation wheel hub energy in motion Enough synchronize arbitrarily angled rotation.Therefore the random adjustable image-type four-wheel position finder calibrating installation of sync bit can simulate car The geometry movement relation of wheel alignment system, the overall process of true reappearance wheel alignment, making accuracy of detection is four-wheel position finder The 1/3-1/5 of accuracy of detection own, can meet national quality superintendent office and manufacturer to image-type four-wheel position finder Quality carry out the most quickly calibrated.

The utility model has the advantage of:

1. the groove of the ground rectangular frame placing horizontal plane ensure that whole device can linear rows in motor process Sail；

2. the U-type groove of synchronous slider and side's circular arc notch of plate, the straight trough mouth of synchronous slider ensure that four moulds in motion Intend wheel hub and can synchronize arbitrarily angled rotation, meet the requirement of the calibration of image-type four-wheel position finder；

3. in the case of toeing-in and camber are not zero at the same time or separately, by adjusting the position of synchronous slider, The dragging pin making simulation wheel hub initially drags position and changes, and the most still can guarantee that and has made image-type four-wheel aligner Instrument enters the whole go-cart process of program, and then measurement image formula four-wheel position finder the most accurately；

4. the geometry movement relation of this device energy simulating wheel alignment system, the overall process of true reappearance wheel alignment, make Accuracy of detection is the 1/3-1/5 of the precision of four-wheel position finder own；

5. the design of five-pointed star handle can make simulation wheel hub be easily installed and dismantle, and operates extremely simple；

6. the symmetrical structure of this device overcome to a certain extent the volume that existing calibrating installation structure complexity causes big, From the deficiency such as great, assembly difficulty is high, precision is low, provide the foundation guarantee for more accurately measuring wheel alignment parameter.

Accompanying drawing explanation

Fig. 1 is the axonometric projection graph of this utility model structure composition；

Fig. 2 is the axonometric projection graph of the lazy-tongs trailing frame structure composition in this utility model；

Fig. 3 is that the breakdown axle of the vertical molectron assembly relation in the lazy-tongs trailing frame in this utility model surveys throwing Shadow figure；

Fig. 4 is the axonometric projection graph of the prenex zero point test jig structure composition in this utility model；

Fig. 5 is the axonometric projection graph of the front left combined support lower limb in the prenex zero point test jig part in this utility model；

Fig. 6 is the axonometric projection graph of the front left platform test portion in this utility model；

Fig. 7 is the axonometric projection graph after Fig. 6 revolves turnback；

Fig. 8 is the axonometric projection graph of the simulation wheel hub structure composition in this utility model；

Fig. 9 is the axonometric projection graph of the four-wheel fixture assembly structure composition in this utility model；

Figure 10 is the 3D reflector in this utility model and simulation hub axle sleeve and the assembling of simulation wheel hub chuck transverse axis The breakdown axonometric projection graph of relation；

In figure: 1. lazy-tongs trailing frame, 2. prenex zero point test jig, 3. front left platform test portion, 4. front right platform Test portion, 5. rear left platform test portion, 6. rear right platform test portion, 7. simulation wheel hub, 8. four-wheel fixture assembly, 101. ground rectangular frames, 102. vertical molectrons, 10201. vertical elongate rod, 10202. side's plates, 10203. synchronize to slide Block, 10204. slider locking screws, 201. front beams, 202. rear cross beams, 203. left longerons, 204. right vertical beams, 205. Circuit box, 206. front left combined support lower limbs, 207. front right combined support lower limbs, 208. rear left combined support lower limbs, 209. rear rights Combined support lower limb, 20601. ground castors, 20602. ground trundle brackets, 20603. ground castor connecting boards, 20604. supporting legs are strengthened Plate, 20605. supporting leg pipes, 20606. supporting leg connecting plates, 20607. universal adjustment lower margins, 20608. long ground caster axle, 301. base backing plates, 302. motors three, 303. stub fork supports, 304. central shafts, 305. stub forks, 306. stub bolt axles, 307. mechanical arm type stub bars, 308. stub lock-screws, 309. mechanical arm stub latch segments, 310. vertical survey dishes, 311. Simulation wheel hub chuck transverse axis, 312. transverse axis contiguous blocks, 313. pull bars, 314. swing arms, 315. zero-point positioning blocks, 316. motors one, 317. L-squares, 318. motors two, 319. plectanes, 320. mechanical arm main pin connecting blocks, 321. mechanical arm stub connectors, 322. Linear bearing, 56., 701. flaps, 702. crescent moon bent plates, 703. simulation hub axle sleeve, 704. drag pin, 705. flange copper Set, 706. five-pointed star handles, 707. triangular reinforcing plate, 801.3D reflector, 802. center fixtures, 803. locking clamping apparatus, 804. end chucking appliances, 805. elongate cylinder bars, 806. elongated fixtures, 807. fluctuation handwheels.

Detailed description of the invention

Refering to Fig. 1～10, include lazy-tongs trailing frame 1, prenex zero point test jig 2, front left platform test portion 3, Front right platform test portion 4, rear left platform test portion 5, rear right platform test portion 6, simulation wheel hub 7, four-wheel fixture are total Become 8；Four ground castors 20601 of prenex zero point test jig 2 respectively with the ground rectangle frame of lazy-tongs trailing frame 1 The left groove of frame 101 contacts and tangent, the U-type groove of the synchronous slider 10203 of lazy-tongs trailing frame 1 and simulation wheel The dragging pin 704 of the simulation wheel hub of hub 7 contacts and tangent, front left platform test portion 3 and front right platform test portion 4 points The left end of the front beam 201 not being arranged in prenex zero point test jig 2 and right-hand member, connect with alignment pin and bolt are fixing, Rear left platform test portion 5 and rear right platform test portion 6 are separately mounted to the rear cross beam 202 in prenex zero point test jig 2 Left end and right-hand member, connect with alignment pin and bolt are fixing, the simulation hub axle sleeve 703 of four simulation wheel hubs 7 is respectively With front left platform test portion 3, front right platform test portion 4, rear left platform test portion 5, the mould of rear right platform test portion 6 Intending wheel hub chuck transverse axis 311 keeps axis consistent and fixedly sleeved；The 3D reflector 801 of four four-wheel fixture assemblies 8 Fixedly sleeved with the simulation hub axle sleeve 703 of corresponding simulation wheel hub 7 by large through-hole respectively, 3D reflector 801 Axis of rotation, simulation the axis of rotation of hub axle sleeve 703, each self-corresponding simulation wheel hub chuck transverse axis 311 return Shaft axis is point-blank.

Prenex zero point test jig 2 as front left platform test portion 3, front right platform test portion 4, rear left platform test portion 5, The installation matrix of rear right platform test portion 6, completes the calibration of the prenex zero point to image-type four-wheel position finder；Front left platform is examined Test part 3 and the left end of front beam 201 that front right platform test portion 4 is separately mounted in prenex zero point test jig 2 and Right-hand member, connects with alignment pin and bolt are fixing, completes the kingpin inclination to image-type four-wheel position finder, reverse caster Angle, toeing-in angle, the calibration of camber angular dimensions, rear left platform test portion 5 and rear right platform test portion 6 are respectively The left end of the rear cross beam 202 being arranged in prenex zero point test jig 2 and right-hand member, connect with alignment pin and bolt are fixing, Complete the toeing-in angle to image-type four-wheel position finder and the calibration of camber angular dimensions.

Refering to Fig. 2, described lazy-tongs trailing frame 1 includes ground rectangular frame 101 and four vertical molectrons 102.

Described ground rectangular frame 101 is welded together, by four certain thickness slender type cuboids, formed Individual planar rectangular framework, it is integrally fixed on level ground, opens respectively in the centre position of around two cuboids One axis is parallel to the straight-through groove of left longeron 203 axis, in the end face outside of its two cuboids of left and right It is respectively welded the vertical molectron of front left 102 and the vertical molectron of rear right 102 to erect with the vertical molectron of front right 102 and rear right Straight molectron 102, the plane of symmetry of the vertical molectron of front left 102 and the vertical molectron of front right 102 is to ground rectangular frame The plane of symmetry of the distance of the front end face of 101 and the vertical molectron of rear right 102 and the vertical molectron of rear right 102 is to ground square The distance of the rear end face of shape framework 101 is equal.

Refering to Fig. 3, described vertical molectron 102 includes vertical elongate rod 10201, side's plate 10202, synchronizes to slide Block 10203, slider locking screw 10204.Described vertical elongate rod 10201 is a longilineal rod member, under Surface contacts with ground, and side is fixing with the lateral surface of ground rectangular frame 101 welds, and side's plate 10202 is one to be had Completely through the rectangular flat structural member of circular arc notch, its Surface Machining has two slotted eyes, by screw with the thinnest Stock 10201 surface is fixing to be connected, and synchronous slider 10203 is a cuboid, and its side is machined with U-type groove and mould Intend wheel hub dragging pin 704 contact and tangent, opposite side have from top to bottom completely through straight trough mouth, locked by slide block Tight screw 10204 is connected with the circular arc notch of side's plate 10202 and fixes with nut.

Refering to Fig. 4, described prenex zero point test jig 2 mainly includes front beam 201, rear cross beam 202, left longeron 203, right vertical beam 204, circuit box 205, front left combined support lower limb 206, front right combined support lower limb 207, rear left set of Close supporting leg 208 and rear right combined support lower limb 209.Wherein front left combined support lower limb 206, front right combined support lower limb 207, Rear left combined support lower limb 208 is identical with the structure of rear right combined support lower limb 209 composition.

The bar class formation part that described front beam 201 is identical with the structure that rear cross beam 202 is made up of square tube, front beam It is provided with the front left through hole installing front left multidiameter and front right multidiameter before and after the left end of 201 and right-hand member to lead to front right The rear left through hole installing rear left multidiameter with rear right multidiameter it is provided with before and after hole, the left end of rear cross beam 202 and right-hand member With rear right through hole；The axis of rotation of the front left through hole on front beam 201 and front right through hole and front left through hole and front right through hole The side at place is vertical, the rear left through hole on rear cross beam 202 and the axis of rotation of rear right through hole and rear left through hole and rear right The side at through hole place is vertical, and the front pitch-row of the front left through hole on front beam 201 and front right through hole and rear cross beam Rear left through hole on 202 with the metapore of rear right through hole away from equal.

Described left longeron 203 and the bar class formation part that right vertical beam 204 is that structure is identical, left longeron 203 and right vertical beam The interlude of 204 is the left intermediate beam and right intermediate beam being made up of pipe, and the two ends of left intermediate beam are welded with front left Multidiameter and the axis of rotation conllinear of rear left multidiameter, front left multidiameter, left intermediate beam and rear left multidiameter；Right The two ends of beam are welded with front right multidiameter and rear right multidiameter, front right multidiameter, right intermediate beam and rear right multidiameter Axis of rotation conllinear；Front left multidiameter, front right multidiameter, rear left multidiameter are identical with the structure of rear right multidiameter, Front left multidiameter, front right multidiameter, rear left multidiameter with one end of the major diameter axle of rear right multidiameter are and left intermediate beam The connection end being connected with right intermediate beam two ends, front left multidiameter, front right multidiameter, rear left multidiameter and rear right multidiameter The other end of major diameter axle be the end of thread being threaded, the end of thread is and front beam 201 is left with rear cross beam 202 The connection end that right-hand member connects, and use the fixing connection of nut；Front left multidiameter, front right multidiameter, rear left multidiameter with The end of thread of rear right multidiameter is connected with minor diameter light axle head respectively.

The front left rank of the front left through hole at front beam 201 two ends and front right through hole and left longeron 203 and right vertical beam 204 front end Ladder axle is equipped with front right major diameter axle with the front left major diameter axle in front right multidiameter, uses front left nut and front right nut Fix equipped with the front left major diameter axle in front right multidiameter and front right major diameter axle with front left multidiameter is connected, rear cross beam The rear left multidiameter of the rear left through hole at 202 two ends and rear right through hole and left longeron 203 and right vertical beam 204 rear end and rear right Rear left major diameter axle in multidiameter is equipped with rear right major diameter axle, uses rear left nut and rear right nut and rear left ladder Fix equipped with the rear left major diameter axle in rear right multidiameter and rear right major diameter axle of axle is connected, and becomes the square of a plane Shape framework, circuit box 205 is screwed on the bottom surface being arranged on rear cross beam 202 centre position, front left combined support Lower limb 206 is connected with front right supporting leg with the rectangle front left supporting leg connecting plate 20606 on front right combined support lower limb 207 top Plate 20606 contacts connection successively with the left end of front beam 201 with right-hand member bottom surface, and is screwed connection, rear left set of Close the rectangle rear left supporting leg connecting plate 20606 on supporting leg 208 and rear right combined support lower limb 209 top and rear right support Lower limb connecting plate 20606 contacts connection with the left end of rear cross beam 202 with right-hand member bottom surface successively, and is screwed connection. Rotate front left combined support lower limb 206, front right combined support lower limb 207, rear left combined support lower limb 208 and rear right combination The front left universal adjustment lower margin 20607 of support leg 209 bottom, front right universal adjustment lower margin 20607, the universal adjustment of rear left Lower margin 20607 and rear right universal adjustment lower margin 20607 i.e. can regulate the height at four angles of rectangle rack, make prenex zero point inspection Test frame 2 and be in level.

Described front left combined support lower limb 206, front right combined support lower limb 207, rear left combined support lower limb 208 and rear right The structure composition of combined support lower limb 209 is identical.

Refering to Fig. 5, described front left combined support lower limb 206 include ground castor 20601, trundle bracket 20602, Ground castor connecting board 20603, supporting leg reinforcing plate 20604, supporting leg pipe 20605, supporting leg connecting plate 20606, Universal adjustment lower margin 20607, long ground caster axle 20608.The bar class knot that supporting leg pipe 20605 is made up of pipe Component, its upper end is fixedly welded with the supporting leg connecting plate 20606 of the rectangle vertical with self axis of rotation, on plate all The even through hole being disposed with installation screw, the lower end of supporting leg pipe 20605 is welded with ground castor connecting board 20603, ground Castor connecting board 20603 is the slab construction part of rectangle, and it is vertical with the axis of rotation of supporting leg pipe 20605, It is welded with supporting leg reinforcing plate 20604, ground castor between side and the ground castor connecting board 20603 of support leg pipe 20605 The lower end of connecting plate 20603 is provided with universal adjustment lower margin 20607, the axis of universal adjustment lower margin 20607 and ground Vertically, universal adjustment lower margin 20607 is threadeded with ground castor connecting board 20603, and ground trundle bracket 20602 is one Individual forked members, its top installing plate is with bolts with ground castor connecting board 20603, ground trundle bracket 20602 Installing plate bottom surface, top on vertically two lower ends being parallel to each other of fixed installation be machined with the installation arm of horizontal through hole, long Ground caster axle 20608 uses bearing to be arranged on for being rotationally connected in the horizontal through hole on ground trundle bracket 20602, ground castor 20601 are sleeved on growing in ground caster axle 20608 for being bonded between two vertically-mounted arms in ground trundle bracket 20602 Connect.

Described front left platform test portion 3, front right platform test portion 4, rear left platform test portion 5, rear right platform check portion The component structural of points 6 is identical, all includes corner adjustment member, mechanical interface and horizontal adjustment part, master Pin Inclination maneuver part.

Refering to Fig. 6 and Fig. 7, the described three dimensional angle adjustment member in front left platform test portion 3 is mainly by base Backing plate 301, motor 3 302, stub fork support 303, central shaft 304, stub fork 305, stub bolt axle 306, Mechanical arm type stub bar 307, stub lock-screw 308, mechanical arm stub latch segment 309, vertical survey dish 310 Composition.Base backing plate 301 is arranged on the left end of front beam 201 and uses alignment pin to fix with bolt, motor 3 302 It is that measuring cell drives again element, its input to be connected with bolt is fixing with base backing plate 301, stub fork support 303 fixing with motor 3 302 outfan bolt are connected, and what central shaft 304 inserted stub fork support 303 two pitches walls On through hole in for being rotationally connected, stub fork 305 employing stub bolt axles 306 be rotationally connected with central shaft 304, machine The lower end of mechanical arm formula stub bar 307 is inserted the top of stub fork 305 and is connected for fixing, the fixing peace of vertical survey dish 310 Being contained in the upper end of mechanical arm type stub bar 307, mechanical arm stub latch segment 309 is sleeved on mechanical arm type stub bar 307 Upper for fixing connection.

The described mechanical interface in front left platform test portion 3 and horizontal adjustment part are mainly by simulation wheel hub chuck transverse axis 311, transverse axis contiguous block 312, pull bar 313, stub lock-screw 308, swing arm 314 and zero-point positioning block 315 groups Become.Swing arm 314 is a forked members, and the fork of swing arm 314 right-hand member is sleeved on central shaft 304 two ends for activity even Connecing, the right-hand member of simulation wheel hub chuck transverse axis 311 is fixing connection in inserting the through hole of swing arm 314 left end, and transverse axis connects Block 312 is fixedly sleeved with simulation wheel hub chuck transverse axis 311, and pull bar 313 is a curved plate type member, pull bar 313 Left end uses screw to be fixed on the trailing flank of transverse axis contiguous block 312, and the right-hand member of pull bar 313 is locked with mechanical arm stub The trailing flank of block 309 is threaded by stub lock-screw 308, and the bottom face of zero-point positioning block 315 is placed on base In the processing plane of backing plate 301, the top end face of zero-point positioning block 315 contacts connection with the bottom surface of swing arm 314 left end, Simulation wheel hub chuck transverse axis 311 can be made to be in level.

The described caster adjustment member in front left platform test portion 3 includes kingpin inclination adjustment member and stub Back rake angle adjustment member, mainly by motor 1, L-square 317, motor 2 3270308, plectane 319, machine Mechanical arm main pin connecting block 320, mechanical arm stub connector 321, linear bearing 322 form.Motor 1 and electricity Machine 2 3270308 is that measuring cell drives again element, and at right angles and there is reinforcement in two plate faces of L-square 317, Motor 1 input is fixing with base backing plate 301 to be connected, and the horizontal plane of its output end face and L-square 317 is fixed Connect, the vertical plane of L-square 317 and the fixing connection of motor 2 3270308, the output end face of motor 2 3270308 Fixing with plectane 319 connect, the symmetrical centre of the axis of motor 1 and plectane 319 on same vertical line, machine Mechanical arm stub connector 321 is a forked members, the long-armed end of plectane 319 and mechanical arm stub connector 321 Being rotationally connected, mechanical arm main pin connecting block 320 is the cuboid that there is screwed hole a centre with through-hole side face, machinery Arm stub connector 321 is rotationally connected with mechanical arm main pin connecting block 320, mechanical arm main pin connecting block 320 and straight line Bearing 322 is fixedly sleeved, and linear bearing 322 is slidably connected with mechanical arm type stub bar 307.

Refering to Fig. 8, described simulation wheel hub 7 include flap 701, crescent moon bent plate 702, simulation hub axle sleeve 703, Drag pin 704, flange copper sheathing 705, five-pointed star handle 706, triangular reinforcing plate 707.Flap 701 be one right Claiming structure, there is a large through-hole center of cross frame, has a small through hole in the middle of ten literal medial surface lower ends, The long multidiameter dragging pin 704 is fixedly sleeved with the small through hole of flap 701, drags the short multidiameter of pin 704 with vertical The U-type groove of the synchronous slider 10203 in molectron 102 contacts and tangent, simulation hub axle sleeve 703 and flap 701 Large through-hole fixedly sleeved, five-pointed star handle 706 by simulation hub axle sleeve 703 on screwed hole with simulation wheel hub press from both sides Set transverse axis 311 is fixing to be connected, the two ends, left and right of a simulation hub axle sleeve 703 fixedly sleeved flange copper sheathing 705 respectively, Cross frame right lateral surface up and down before and after four positions weld one with between simulation hub axle sleeve 703 outer surface respectively Identical triangular reinforcing plate 707, the top and bottom of the left surface of flap 701 are respectively welded a crescent moon bent plate 702, simulation hub axle sleeve 703 keeps axis consistent fixedly sleeved with simulation wheel hub chuck transverse axis 311.

Refering to Fig. 9, described four-wheel fixture assembly 8 includes that 3D is reflective 801, center fixture 802, locking clamping apparatus 803, end chucking appliance 804, elongate cylinder bar 805, elongated fixture 806, fluctuation handwheel 807.Four-wheel fixture assembly In center fixture 802, locking clamping apparatus 803, end chucking appliance 804 all have three through holes, three of all fixtures are led to Three axis that hole is linked to be from top to bottom are parallel, and center fixture 802 is centrally located fixing, in the fixture 802 of center Between with a horizontal large through-hole, 3D reflector 801 by large through-hole with to simulate hub axle sleeve 703 fixedly sleeved, Two locking clamping apparatus 803 are hitting exactly the distribution symmetrical above and below of fixture 802, respectively with the upper crescent moon bent plate 702 simulating wheel hub Contact and tangent with lower crescent bent plate 702, two elongate cylinder bars 805 sequentially pass through respectively locking clamping apparatus 803, Center fixture 802, two through holes of lower locking clamping apparatus 803 symmetry, two end chucking appliances 804 are symmetrically distributed in and lock The upper end of tight fixture 803 and the lower end of lower locking clamping apparatus 803, by two clear openings respectively with elongate cylinder bar 805 Upper and lower end face overlap and fixedly sleeved, elongated fixture 806 runs through middle through hole and from top to bottom with the handwheel that fluctuates 807 fixing lockings.

The axis of rotation of 3D reflector 801 to be reached, the simulation axis of rotation of hub axle sleeve 703, simulation after installation The axis of rotation of wheel hub chuck transverse axis 311 is point-blank.

The operation principle of the random adjustable image-type four-wheel position finder calibrating installation of sync bit and operational approach:

The random adjustable image-type four-wheel position finder calibrating installation of sync bit first has to before using prenex zero point test jig 2 It is combined installing, then it is carried out leveling work, i.e. utilize level indicator and the universal tune of front left on four supporting legs Whole lower margin 20607, front right universal adjustment lower margin 20607, rear left universal adjustment lower margin 20607 and the universal adjustment of rear right Lower margin 20607 makes prenex zero point test jig 2 be in horizontal operation state, then by front left platform test portion 3, front right Platform test portion 4, rear left platform test portion 5, rear right platform test portion 6 are separately mounted to prenex zero point test jig 2 On front left erecting bed, front right erecting bed, rear left erecting bed, on rear right erecting bed, fix with alignment pin bolt, Again four simulation wheel hubs 7 are separately mounted on corresponding simulation wheel hub chuck transverse axis 311, are screwed, will Fixing locking on the edge being clipped in simulation wheel hub 7 of four four-wheel fixture assembly 8 correspondences.

1. wheel kingpin inclination, the operation principle of castor inspection and operational approach are:

First promote prenex zero point test jig 2, make ground castor 20601 enter along groove straight-line travelling, four-wheel position finder Indicate go-cart the most backward according to it after program, now drag pin 704 and slide up and down in U-type groove, finally return Initial position completes whole go-cart process.Only front left platform test portion 3 and front right platform test portion 4 are operated, Loosen stub lock-screw 308 and slider locking screw 10204, zero-point positioning block 315 is placed on stub fork support In the processing plane of 303, swing arm 4205 is placed on zero-point positioning block 315, makes the axis of simulation hub axle sleeve 703 It is in level, level indicator is placed on vertical survey dish 43, be adjusted to mechanical arm type stub bar 307 and be perpendicular to The horizontal plane of front beam 201, now ensure that kingpin inclination and castor are zero original positions, and four-wheel is fixed Position instrument assay device wheel kingpin inclination, castor reset, and then adjust motor 1 and motor 2 318 Angular turn amount, now device automatically forms kingpin inclination and the castor of certain angle, then screws stub Lock-screw 308, removes zero-point positioning block 315, and the angular turn amount adjusting motor 3 302 makes simulation wheel hub and four Wheel fixture assembly (right) the most to the left around mechanical arm type stub bar 307 rotate to an angle four-wheel position finder entrance program After the most to the right (left) rotate to an angle and return centre position, in this process synchronous slider 10203 also along Notch slides, the wheel stub now the wheel kingpin inclination obtained and castor recorded with four-wheel position finder Leaning angle compares with castor registration, can enter four-wheel position finder wheel kingpin inclination and castor Row calibrating.

2. camber angle inspection operation principle and operational approach

First promote prenex zero point test jig 2, make ground castor 20601 enter along groove straight-line travelling, four-wheel position finder Indicate go-cart the most backward according to it after program, now drag pin 704 and slide up and down in U-type groove, finally return Initial position completes whole go-cart process.Loosen slider locking screw 10204, horizon rule is placed on simulation hub axle sleeve On 703, adjust motor 1 and the angular turn amount of motor 2 318, make simulation hub axle sleeve 703 be in level State, resets calibrating apparatus for four-wheel positioning instrument camber angle, and now four-wheel position finder sensor registration should be zero, Remove horizon rule, adjust motor 1 and the amount of spin of motor 2 318, allow camber angle increase continuously or reduce (synchronous slider 10203 slides along straight trough mouth direction), the car that camber angle registration and four-wheel position finder are recorded Wheel camber angle registration compares, and can examine and determine four-wheel position finder camber angle.

3. toeing-in angle inspection operation principle and operational approach

First promote prenex zero point test jig 2, make ground castor 20601 enter along groove straight-line travelling, four-wheel position finder Indicate go-cart the most backward according to it after program, now drag pin 704 and slide up and down in U-type groove, finally return Initial position completes whole go-cart process.Loosening slider locking screw 10204, simulation hub axle sleeve 703 is in level State, the amount of spin of motor 3 302 is zero, is resetted at calibrating apparatus for four-wheel positioning instrument toeing-in angle, adjusts motor The angular turn amount of 3 302, allows toeing-in angle increase continuously or reduces that (synchronous slider 10203 is along circular arc notch Slide in direction), by the registration at toeing-in angle compared with the toeing-in angle registration that four-wheel position finder records, Four-wheel position finder toeing-in angle is examined and determine.

Claims (10)

1. the random adjustable image-type four-wheel position finder calibrating installation of sync bit, it is characterised in that: prenex zero point Four of test jig ground castors left groove with the ground rectangular frame of lazy-tongs trailing frame respectively contact and tangent, together The U-type groove of the synchronous slider of step mechanism trailing frame and the dragging pin contacts simulating wheel hub of simulation wheel hub are the most tangent, front left Platform test portion and front right platform test portion are separately mounted to left end and the right-hand member of the front beam in prenex zero point test jig, Connecting with alignment pin and bolt are fixing, rear left platform test portion and rear right platform test portion are separately mounted to prenex zero point inspection Test left end and the right-hand member of rear cross beam in frame, connect with alignment pin and bolt are fixing, the simulation wheel hub of four simulation wheel hubs Axle sleeve respectively with front left platform test portion, front right platform test portion, rear left platform test portion, rear right platform test portion Simulation wheel hub chuck transverse axis keeps axis consistent and fixedly sleeved；The 3D reflector of four four-wheel fixture assemblies leads to respectively Cross large through-hole fixedly sleeved with the simulation hub axle sleeve of corresponding simulation wheel hub, the axis of rotation of 3D reflector, simulation The axis of rotation of hub axle sleeve and the axis of rotation of each self-corresponding simulation wheel hub chuck transverse axis are point-blank.

A kind of random adjustable image-type four-wheel position finder calibrating installation of sync bit the most according to claim 1, It is characterized in that: described lazy-tongs trailing frame includes ground rectangular frame and four vertical molectrons, ground rectangle Framework is welded together the planar rectangular framework formed by four certain thickness slender type cuboids, and it is solid It is scheduled on level ground, has opened an axis respectively in the centre position of around two cuboids and be parallel to left longeron The straight-through groove of axis, the end face outside of its two cuboids of left and right be respectively welded the vertical molectron of front left and after Left vertically molectron and the vertical molectron of front right and the vertical molectron of rear right, the vertical molectron of front left and front right vertically combine The plane of symmetry of part is to distance and the vertical molectron of rear left of the front end face of ground rectangular frame and the vertical molectron of rear right The plane of symmetry is equal to the distance of the rear end face of ground rectangular frame.

A kind of random adjustable image-type four-wheel position finder calibrating installation of sync bit the most according to claim 2, It is characterized in that: described vertical molectron includes vertical elongate rod, side plate, synchronous slider, slider locking screw, Vertically elongate rod is a longilineal rod member, and lower surface contacts with ground, side and the lateral surface of ground rectangular frame Fixing welding, side's plate be one have completely through the rectangular flat structural member of circular arc notch, its Surface Machining has two Slotted eye, is connected by screw and vertical elongate rod surface are fixing, and synchronous slide block is a cuboid, and its side processes Have U-type groove and the simulation dragging pin contacts of wheel hub tangent, opposite side have from top to bottom completely through straight trough mouth, logical Cross slider locking screw be connected with the circular arc notch of side's plate and fix with nut.

A kind of random adjustable image-type four-wheel position finder calibrating installation of sync bit the most according to claim 1, It is characterized in that: described prenex zero point test jig part includes front beam, rear cross beam, left longeron, right vertical beam, electricity Road case, front left combined support lower limb, front right combined support lower limb, rear left combined support lower limb and rear right combined support lower limb, front horizontal stroke The through hole at beam two ends and left longeron are equipped with the front end of right vertical beam and use that nut is fixing is connected, the through hole at rear cross beam two ends Being equipped with and use nut to be fixedly connected into the rear end of left longeron Yu right vertical beam is the rectangular frame of a plane, circuit Case is screwed on the bottom surface being arranged on rear cross beam centre position, the front left combined support lower limb that is vertically arranged, front right group The bottom surface at four angles closing supporting leg, the top end face of rear left combined support lower limb and rear right combined support lower limb and rectangular frame connects Touch and adopt and be screwed.

A kind of random adjustable image-type four-wheel position finder calibrating installation of sync bit the most according to claim 4, It is characterized in that: the bar class formation part that structure that described front beam is made up of square tube with rear cross beam is identical, front beam Left end and right-hand member before and after be provided with front left through hole and the front right through hole installing front left multidiameter and front right multidiameter, after It is provided with the rear left through hole installing rear left multidiameter and rear right multidiameter before and after the left end of crossbeam and right-hand member to lead to rear right Hole；Front left through hole on front beam is vertical with the side at front right through hole place with the axis of rotation of front right through hole and front left through hole Directly, the rear left through hole on rear cross beam is vertical with the side at rear right through hole place with the axis of rotation of rear right through hole and rear left through hole Directly, the rear left through hole in the front pitch-row of the front left through hole and on front beam and front right through hole and rear cross beam and rear right through hole Metapore away from equal.

A kind of random adjustable image-type four-wheel position finder calibrating installation of sync bit the most according to claim 4, It is characterized in that: described left longeron and the bar class formation part that right vertical beam is that structure is identical, in left longeron and right vertical beam Between section be the left intermediate beam be made up of pipe and right intermediate beam, the two ends of left intermediate beam be welded with front left multidiameter with The axis of rotation conllinear of rear left multidiameter, front left multidiameter, left intermediate beam and rear left multidiameter；The two ends of right intermediate beam It is welded with the gyroaxis of front right multidiameter and rear right multidiameter, front right multidiameter, right intermediate beam and rear right multidiameter Line conllinear；Front left multidiameter, front right multidiameter, rear left multidiameter are identical with the structure of rear right multidiameter, front left ladder One end of the major diameter axle of axle, front right multidiameter, rear left multidiameter and rear right multidiameter be and left intermediate beam and right between The major diameter of the connection end that beam two ends connect, front left multidiameter, front right multidiameter, rear left multidiameter and rear right multidiameter The other end of axle is the end of thread being threaded, and the end of thread is the connection being connected with rear cross beam left and right end with front beam End, and use the fixing connection of nut；Front left multidiameter, front right multidiameter, rear left multidiameter and the spiral shell of rear right multidiameter Stricture of vagina end is connected with minor diameter light axle head respectively.

A kind of random adjustable image-type four-wheel position finder calibrating installation of sync bit the most according to claim 4, It is characterized in that: described front left combined support lower limb, front right combined support lower limb, rear left combined support lower limb and rear right combination Support leg structure is identical, all include ground castor, trundle bracket, castor connecting board, supporting leg reinforcing plate, Supporting leg pipe, supporting leg connecting plate, universal adjustment lower margin, long ground caster axle, supporting leg pipe is made up of pipe Bar class formation part, its upper end is fixedly welded with the supporting leg connecting plate of the rectangle vertical with self axis of rotation, on plate Being evenly arranged the through hole installing screw, the lower end of supporting leg pipe is welded with ground castor connecting board, ground castor connecting board For the slab construction part of rectangle, it is vertical with the axis of rotation of supporting leg pipe, the side of supporting leg pipe and ground castor Being welded with supporting leg reinforcing plate between connecting plate, the lower end of ground castor connecting board is provided with universal adjustment lower margin, universal adjustment The axis of lower margin is perpendicular to the ground, and universal adjustment lower margin is threadeded with ground castor connecting board, and ground trundle bracket is one Forked members, its top installing plate is with bolts, at the bottom of the top installing plate of ground trundle bracket with ground castor connecting board On face, vertically two lower ends being parallel to each other of fixed installation are machined with the installation arm of horizontal through hole, and long ground caster axle uses Bearing is arranged on for being rotationally connected in the horizontal through hole on ground trundle bracket, and lower margin is taken turns and is sleeved in lower margin wheel support two It is bonded in long ground caster axle between vertically-mounted arm.

A kind of random adjustable image-type four-wheel position finder calibrating installation of sync bit the most according to claim 1, It is characterized in that: described front left platform test portion, front right platform test portion, rear left platform test portion and the inspection of rear right platform Test part component structural identical, all include corner adjustment member, mechanical interface and horizontal adjustment part, Caster adjustment member, the base backing plate of described front left platform test portion and front right platform test portion and front beam Left end contacts with right-hand member and uses that alignment pin and bolt are fixing to be connected, rear left platform test portion and rear right platform test portion The left end of base backing plate and rear cross beam contacts and use alignment pin with right-hand member and bolt is fixing is connected；

The described three dimensional angle adjustment member in front left platform test portion is mainly by base backing plate, motor three, stub Fork support, central shaft, stub fork, stub bolt axle, mechanical arm type stub bar, stub lock-screw, mechanical arm master Pin locked block, vertical survey dish form, and base backing plate is arranged on the left end of front beam and uses alignment pin to fix with bolt, Motor three is that measuring cell drives again element, and its input is fixing with base backing plate bolt to be connected, stub fork Frame is fixing with motor three outfan bolt to be connected, and central shaft inserts in the through hole on two fork walls of stub fork support as turning Being dynamically connected, stub fork uses stub bolt axle to be connected with central axis, and stub is inserted in the lower end of mechanical arm type stub bar The top of fork connects for fixing, and vertical survey dish is fixedly mounted on the upper end of mechanical arm type stub bar, and mechanical arm stub is locked Tight block is sleeved on mechanical arm type stub bar and connects for fixing；

The described mechanical interface in front left platform test portion and horizontal adjustment part mainly by simulation wheel hub chuck transverse axis, Transverse axis contiguous block, pull bar, stub lock-screw, swing arm and zero-point positioning block composition, swing arm is a forked members, It is to be flexibly connected that the fork of swing arm right-hand member is sleeved on central shaft two ends, and it is left that the right-hand member of simulation wheel hub chuck transverse axis inserts swing arm Connecting for fixing in the through hole of end, transverse axis contiguous block is fixedly sleeved with simulation wheel hub chuck transverse axis, and pull bar is a bent plate Shape component, the left end of pull bar uses screw to be fixed on the trailing flank of transverse axis contiguous block, the right-hand member of pull bar and mechanical arm master The trailing flank of pin locked block is threaded by stub lock-screw, and the bottom face of zero-point positioning block is placed on base backing plate In processing plane, the top end face of zero-point positioning block contacts connection with the bottom surface of swing arm left end；

The described caster adjustment member in front left platform test portion includes kingpin inclination adjustment member and stub Back rake angle adjustment member, mainly by motor one, L-square, motor two, plectane, mechanical arm main pin connecting block, machine Mechanical arm stub connector, linear bearing form, and motor one and motor two are that measuring cell drives again element, right angle At right angles and there is reinforcement in two plate faces of plate, and motor one input is fixing with base backing plate to be connected, its output end face with The horizontal plane of L-square is fixing to be connected, the vertical plane of L-square and motor two is fixing connects, the output end face of motor two and Plectane is fixing to be connected, the axis of motor one and the symmetrical centre of plectane on same vertical line, mechanical arm stub connector Being a forked members, the long-armed end of plectane is rotationally connected with mechanical arm stub connector, mechanical arm main pin connecting block It is the centre cuboid that has screwed hole with through-hole side face, mechanical arm stub connector and mechanical arm main pin connecting block Being rotationally connected, mechanical arm main pin connecting block is fixedly sleeved with linear bearing, and linear bearing slides with mechanical arm type stub bar Connect.

A kind of random adjustable image-type four-wheel position finder calibrating installation of sync bit the most according to claim 1, It is characterized in that: described simulation wheel hub includes flap, crescent moon bent plate, simulation hub axle sleeve, drags pin, flange Copper sheathing, five-pointed star handle, triangular reinforcing plate, flap is a symmetrical structure, and the center of cross frame has one Large through-hole, has a small through hole in the middle of ten literal medial surface lower ends, drags the long multidiameter of pin and the little logical of flap Hole is fixedly sleeved, and the short multidiameter dragging pin contacts and tangent with the U-type groove of the synchronous slider in vertical molectron, mould Intending hub axle sleeve fixedly sleeved with the large through-hole of flap, five-pointed star handle is by the screwed hole in simulation hub axle sleeve and mould Intend the fixing connection of wheel hub chuck transverse axis, two ends, the left and right fixedly sleeved flange copper sheathing of difference of simulation hub axle sleeve, ten Word frame right surface up and down before and after four positions respectively with to weld one between simulation hub axle sleeve outer surface identical Triangular reinforcing plate, the top and bottom of the left surface of flap are respectively welded a crescent moon bent plate, simulate hub axle sleeve Keep axis consistent fixedly sleeved with simulation wheel hub chuck transverse axis.

A kind of random adjustable image-type four-wheel position finder calibrating installation of sync bit the most according to claim 1, It is characterized in that: described four-wheel fixture assembly includes 3D reflector, center fixture, locking clamping apparatus, end card Tool, elongate cylinder bar, elongated fixture, fluctuation handwheel, the center fixture in four-wheel fixture assembly, locking clamping apparatus, end Portion's fixture all has three through holes, and three axis that three through holes of all fixtures are linked to be from top to bottom are parallel, hits exactly fixture Centrally located fixing, with a horizontal large through-hole in the middle of the fixture of center, 3D reflector passes through large through-hole and mould Intending hub axle sleeve fixedly sleeved, two locking clamping apparatus are hitting exactly the distribution symmetrical above and below of fixture, respectively with simulation wheel hub Upper crescent moon bent plate contacts and tangent with lower crescent bent plate, and two elongate cylinder bars sequentially pass through locking clamping apparatus, just respectively Two through holes that middle fixture, lower locking clamping apparatus are symmetrical, two end chucking appliances be symmetrically distributed in locking clamping apparatus upper end and The lower end of lower locking clamping apparatus, is overlapped and fixedly sleeved with the upper and lower end face of elongate cylinder bar respectively by two clear openings, Elongated fixture runs through middle through hole from top to bottom and locks with fluctuation handwheel is fixing.