CN112692562B

CN112692562B - Calibration tool platform of vehicle chassis

Info

Publication number: CN112692562B
Application number: CN201911012033.7A
Authority: CN
Inventors: 韦青海; 刘玉平; 马如豹; 姜韬; 胡俊
Original assignee: Guangdong Bozhilin Robot Co Ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2022-04-15
Anticipated expiration: 2039-10-23
Also published as: CN112692562A

Abstract

The invention discloses a calibration tool platform of a chassis, which comprises: bottom plate, base and two tight structures in top. The base is arranged on the bottom plate, the top of the base is provided with a chassis positioning part, and two opposite side surfaces of the base respectively define a wheel reference surface. The jacking structure comprises a movable jacking block, and the jacking block is arranged corresponding to the wheel datum plane so as to jack the wheel against the wheel datum plane. According to the calibration tool platform for the vehicle chassis, disclosed by the embodiment of the invention, the chassis positioning part arranged on the base can be used for positioning the vehicle chassis, the distance between the wheel reference surface on the base and the chassis positioning part is within a preset range, and the wheel reference surface can be used for tightly attaching to a wheel. After the two jacking blocks are respectively adjusted, two surfaces of the two wheels on the chassis respectively stop against the corresponding wheel datum plane and the jacking blocks, so that the distance between the two wheels can be adjusted, the parallelism between the adjusted wheels is high, the driving stability of subsequent finished vehicles is ensured, and the batch precision consistency of the chassis processing batches is increased.

Description

Calibration tool platform of vehicle chassis

Technical Field

The invention belongs to the technical field of calibration, and particularly relates to a calibration tool platform for a chassis.

Background

In the development process of mechanical intelligence, intelligent logistics transportation is taken as a new industry, logistics distribution systems and related supporting equipment are needed to be improved urgently, wherein an intelligent transport vehicle is an important transport tool, a chassis is taken as one of core components of the whole intelligent transport vehicle, a running mechanism, a power system, a control system and the like are connected, the influence of the tooling precision of the chassis to a large extent affects the control precision, the difficulty degree of assembly and the stability of subsequent operation, and particularly when the chassis is provided with a driving wheel capable of realizing differential adjustment, the specific position of the driving wheel is critical.

And still lack the equipment that carries out the calibration to the drive wheel of intelligent transport vechicle in the existing market, consequently after chassis and relevant part carry out the frock, can't guarantee the due precision of intelligent transport vechicle, also can't guarantee the precision uniformity between the many intelligent transport vechicles, cause easily that manufacturing cost promotes, frock cost is high or the intelligent transport vechicle low in the qualification rate that dispatches from the factory.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a calibration tool platform for a vehicle chassis, which can calibrate wheels, so that the wheels have high parallelism and consistent distance, and the problem of poor precision of the chassis provided with driving wheels is solved.

According to the embodiment of the invention, the calibration tool platform for the chassis comprises: a base plate; the base is arranged on the bottom plate, a chassis positioning part is arranged at the top of the base, and two opposite side surfaces of the base respectively define wheel reference surfaces; the two jacking structures comprise movable jacking blocks, and the jacking blocks are arranged corresponding to the wheel datum planes so as to jack the wheels on the wheel datum planes.

According to the calibration tool platform for the vehicle chassis, the base is arranged on the bottom plate, the chassis positioning part on the base can position the vehicle chassis, the distance between the wheel datum plane on the base and the chassis positioning part is within a preset range, and the wheel datum plane can be used for clinging to wheels. After adjusting the kicking blocks of two corresponding wheel reference surfaces respectively, can make two faces of two wheels on the chassis stop respectively to support between corresponding wheel reference surface and kicking block, so that the interval of two wheels can be adjusted, and make the position that two wheels are located on the chassis satisfy the default, the wheel sets up the position precision on the chassis is high, and the depth of parallelism between the wheel is high, the machining precision of the chassis that has the wheel has been promoted, the driving stability of follow-up finished car has been guaranteed, the batch precision uniformity of chassis processing has been increased.

According to the calibration tool platform of the vehicle chassis, the calibration tool platform is suitable for calibration installation of the identification code navigation automatic guided transport vehicle, and the base is provided with the identification code area for calibrating a code reader on the vehicle chassis.

Optionally, a two-dimensional code sticker is pasted or a laser etching two-dimensional code is arranged on the identification code area.

According to a further embodiment of the present invention, a groove is formed on the top of the base, and the identification code region is disposed in the groove.

Optionally, the chassis positioning portion is a convex ring arranged around the edge of the groove.

According to the calibration tool platform of the chassis, the jacking structure further comprises: the top block is provided with a guide hole sleeved on the guide pillar; an elastic member connected between the top block and the base to urge the top block in a direction away from the wheel reference plane; the stop block stops at one side, far away from the wheel datum plane, of the ejector block.

According to a further embodiment of the invention, the guide post is vertically attached to the wheel reference surface, and the side of the top block facing the wheel reference surface is parallel to the wheel reference surface.

Optionally, the elastic member is a spring sleeved on the guide post.

According to a further embodiment of the present invention, the stopper is provided with a threaded hole; the tight structure in top still includes: the screw bolt is rotatably matched with the threaded hole, one end of the screw bolt is propped against the jacking block, and the other end of the screw bolt is provided with a handle.

According to one embodiment of the invention, the calibration tool platform for the chassis further comprises support legs arranged at four corners of the bottom plate.

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

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of a calibration tool platform according to an embodiment of the present invention.

Fig. 2 is a front view of a calibration tool platform according to an embodiment of the present invention.

Fig. 3 is a bottom view of a calibration tooling platform according to one embodiment of the present invention.

Fig. 4 is a left side view of a calibration tooling platform according to one embodiment of the present invention.

Fig. 5 is a right side view of a calibration tool platform according to an embodiment of the present invention.

Fig. 6 is a bottom view of a vehicle chassis in accordance with one embodiment of the present invention.

Reference numerals:

a calibration tool platform 100,

A bottom plate 1, a supporting leg 11,

A base 2, a chassis positioning part 21, a wheel datum plane 22, an identification code area 23, a groove 24,

A jacking structure 3,

A top block 31, a side surface 311 facing the wheel reference surface 22,

A guide post 32, an elastic member 33,

A stop 34, a stud 35, a handle 36,

A chassis 200, a code reader 210, wheels 220 and a matching groove 230.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

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

The calibration tooling platform 100 for a vehicle chassis 200 according to an embodiment of the present invention will be described with reference to the drawings attached hereto.

As shown in fig. 1, a calibration tooling platform 100 for a vehicle chassis 200 according to an embodiment of the present invention includes: a bottom plate 1, a base 2 and two tightening structures 3.

As shown in fig. 1, the base 2 is disposed on the bottom plate 1, a chassis positioning portion 21 is disposed on a top of the base 2, and two opposite side surfaces of the base 2 define wheel reference surfaces 22, respectively. For example, in some particular examples, the left and right sides of the base 2 each define a wheel reference plane 22; in other examples, it is also possible that the front side and the rear side of the base 2 define the wheel reference surfaces 22, respectively.

As shown in fig. 1 and 2, the pressing structure 3 includes a movable pressing block 31, and the pressing block 31 is disposed corresponding to the wheel reference surface 22 to press the wheel 220 against the wheel reference surface 22.

As can be seen from the above structure, in the calibration tooling platform 100 for a vehicle chassis 200 according to the embodiment of the present invention, the base 2 is disposed on the bottom plate 1, the chassis positioning portion 21 on the base 2 can position the vehicle chassis 200, the distance between the wheel reference surface 22 on the base 2 and the chassis positioning portion 21 is within a preset range, and the wheel reference surface 22 can be used to attach to the wheel 220.

The top block 31 is movable and can be adjusted relative to the wheel datum 22, when the wheels 220 of the chassis 200 are respectively placed between the top block 31 and the base 1, the chassis 200 is firstly positioned in a preset position by the chassis positioning part 21, and then the wheel datum 22 and the top block 31 corresponding to the two wheels 220 are adjusted, so that two surfaces of the two wheels 220 on the chassis 200 can respectively abut against the corresponding wheel datum 22 and the top block 31, the distance between the two wheels 220 can be adjusted, and the positions of the two wheels 220 on the chassis 200 meet the preset value, therefore, the accuracy of the setting positions of the wheels 220 on the chassis 200 is extremely high.

Because two wheel datum planes 22 on the base 2 are arranged oppositely, the parallelism between the two wheels 220 after final calibration is high, the processing precision of the chassis 200 with the wheels 220 is improved, the driving stability of subsequent finished vehicles is ensured, and the batch precision consistency of the chassis 200 processing batches is increased.

It can be understood that the present invention can precisely calibrate the relative positions of the wheels 220 and the chassis 210, and the assembly accuracy of the wheels 220 is high, compared to the prior art in which only the whole alignment of the chassis with wheels is performed.

In some embodiments of the present invention, the calibration tooling platform 100 is suitable for calibration and installation of the id navigation automated guided vehicle, as shown in fig. 6, a code reader 210 is disposed on a chassis 200 of the id navigation automated guided vehicle, and the code reader 210 can be used for scanning and identifying an id such as a two-dimensional code or a barcode. As shown in fig. 2, the base 2 is provided with an identification code area 23 for calibrating a code reader 210 on a chassis 200 of the vehicle. That is, after the code reader 210 of the chassis 200 is aligned with the identification code area 23, the position of the chassis 200 on the calibration tooling platform 100 can be identified, and the chassis 200 can be quickly positioned on the calibration tooling platform 100 by matching with the chassis positioning part 21.

It will be appreciated that the identification code navigates the automated guided vehicle, which, as the name suggests, scans the identification code via the code reader 210 to determine its position during transport and thereby plan the subsequent travel path. Therefore, when the transportation vehicles manufactured in the same batch have accurate position relationship and distance between the code reader 210 and the wheels 220, the automatic navigation capability of the transportation vehicles in the actual transportation process is more accurate. The base 2 is provided with the identification code area 23, and the position relation and the distance between the identification code area 23 on the calibration tool platform 100 and the wheel datum plane 22 are determined, so that the accuracy of the position relation and the distance between the code reader 210 and the wheel 220 is improved after the vehicle chassis 200 is calibrated by the calibration tool platform 100.

Optionally, the two-dimensional code paste is pasted or the laser etching two-dimensional code is arranged on the identification code area 23, the laser etching two-dimensional code is not prone to fading, reliability is high, and service life is long. After the code reader 210 on the vehicle chassis 200 scans the two-dimensional code paste or the laser etching two-dimensional code, the vehicle chassis 200 can obtain accurate position information and provide important reference data for software debugging. In addition, after the vehicle chassis 200 obtains the position information, the position of the vehicle chassis 200 relative to the calibration tooling platform 100 can be readjusted according to the feedback information, for example, the wheel 220 is driven between the base 2 and the top block 31, so that the corresponding part of the vehicle chassis 200 is quickly aligned to the chassis positioning part 21 of the calibration tooling platform 100, and the wheel 220 is conveniently specifically calibrated.

Optionally, as shown in fig. 6, an inward concave matching groove 230 is formed in the vehicle chassis 200, a lens of the code reader 210 is installed in the matching groove 230, and the matching groove 230 is aligned with the chassis positioning portion 21 in a matching manner to complete alignment between the vehicle chassis 200 and the calibration tooling platform 100.

Advantageously, as shown in fig. 1 and 2, the top of the base 2 is provided with a recess 24, and the identification code area 23 is provided in the recess 24. When the identification code area 23 is disposed in the groove 24, the positions of the code reader 210 and the identification code area 23 of the chassis 200 can be properly adjusted to prevent the lens of the code reader 210 from being worn due to too close distance therebetween, and prevent the identification code information in the identification code area 23 from being unrecognizable by the code reader 210 due to too far distance therebetween.

Alternatively, as shown in fig. 2 and 3, the chassis positioning portion 21 is a convex ring disposed around the edge of the groove 24. The convex ring can extend into the matching groove 230 of the vehicle chassis 200 to form limiting matching with the vehicle chassis 200, so that the relative positioning of the vehicle chassis 200 on the calibration tooling platform 100 is completed, and the accurate position matching relation between the vehicle chassis 200 and the base 2 is ensured.

In other examples, the chassis positioning portion 21 may also be formed as a plurality of protrusions arranged at intervals, and the chassis 200 is provided with a slot, and the protrusions extend into the slot to form a positioning fit.

In some embodiments of the present invention, as shown in fig. 1 and 3, the tightening structure 3 further includes: a guide post 32, an elastic member 33, and a stopper 34.

Wherein, the top block 31 is provided with a guide hole sleeved on the guide post 32, so that the guide post 32 can slide relative to the length direction of the guide hole. The elastic member 33 is connected between the top block 31 and the base 2 to urge the top block 31 in a direction away from the wheel reference surface 22. That is, the elastic member 33 connected between the top block 31 and the base 2 is used to drive the top block 31 away from the wheel reference plane 22, so that a distance is maintained between the top block 31 and the base 2, which is sufficient for the wheels 220 of the vehicle chassis 200 to drive in.

In addition, the stopper 34 is stopped on the side of the top block 31 away from the wheel reference surface 22. That is, in a normal state, the stopper 34 applies a force opposite to the elastic member 33 to the top block 31, so that the distance between the top block 31 and the base 2 is proper, and the top block 31 is not too far away from the base 2, which takes too long calibration time when the wheel 220 is calibrated, thereby improving the calibration efficiency. Meanwhile, the stop block 34 is also used for determining the contact and proximity of the two side surfaces of the wheel 220 with the wheel reference surface 22 and the side surfaces of the top block 31 when the wheel 220 is aligned, so that the top block 31 is fixed at a proper position on the bottom plate 1 to press the wheel 220 together with the base 2.

Alternatively, as shown in fig. 1, the guide post 32 is vertically connected to the wheel reference surface 22, and the side 311 of the top block 31 facing the wheel reference surface 22 is parallel to the wheel reference surface 22. That is to say, when the top block 31 and the base 2 calibrate the wheel 220, the two surfaces of the wheel 220 are parallel to each other, and it can be understood that the two parallel surfaces not only facilitate the application of force to the wheel 220 and the compaction, but also enable the two side surfaces of the wheel 220 to be stressed uniformly and in a process of compaction, the stress is balanced, and the wheel 220 is not easy to deviate from the calibration position when the wheel 220 is calibrated. In addition, the parallel pressing surfaces are designed, so that the structural design of the jacking structures 3 on the two sides is symmetrical, and the processing is convenient. Correspondingly, the wheel 220 on the chassis 200 also has two mutually parallel side surfaces to contact the wheel reference surface 22 and the side surface 311 of the top block 31 facing the wheel reference surface 22. Here, the wheel reference surface 22 and the side surface 311 of the top block 31 facing the wheel reference surface 22 both have the requirement of the flat precision of the longitudinal surface, and the requirement of the vertical precision is also provided between the guide pillar 32 and the side surface 311 and between the guide pillar 32 and the wheel reference surface 22, so as to ensure the stable performance of the calibration tooling platform 100 during calibration.

In a specific example, the guide hole of the top block 31 is rigidly matched with the guide post 32, and the guide hole provided on the base 2 is in clearance fit with the guide post 32, so that the top block 31 can make a linear guide motion relative to the base 2.

Alternatively, the elastic member 33 is a spring that is sleeved on the guide post 32. The spring is in a compressed state so that the top piece 31 always tends to move away from the base 2.

Optionally, a plurality of guide posts 32 are connected between the top block 31 and the base 2, and each guide post 32 is sleeved with an elastic member 33. The plurality of guide posts 32 and the elastic member 33 make the guiding of the top block 31 with respect to the base 2 more stable and the spring force applied to the top block 31 sufficient to maintain a minimum distance between the top block 31 and the base 2. The service life and the tolerance of the parts can be enhanced. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Advantageously, as shown in fig. 3, 4 and 5, the stopper 34 is provided with a threaded hole, and the tightening structure 3 further includes: a stud 35 rotatably matched with the threaded hole, one end of the stud 35 is pressed against the top block 31, and the other end of the stud 35 is provided with a handle 36. That is, when the distance between the top block 31 and the base 2 is adjusted, the stud 35 on the stopper 34 is adjusted, so that the end face of the stud 35 applies a certain pushing force to the top block 31, and the top block 31 is stopped against one side face of the wheel 220. The handle 36 is arranged to facilitate the manual grasping and adjustment of the stud 35.

In other examples, the stop 34 may not be provided with a threaded hole and a stud 35, but a runner and a plurality of bayonets may be provided on the base plate 1 on the side near the stop 34, into which bayonets are vertically inserted, the retainer resting on the side of the stop 34, so that the stop 34 rests on the wheel 220.

In some embodiments of the present invention, as shown in fig. 3 and 4, the calibration tooling platform 100 further includes support legs 11 disposed at the four corners of the base plate 1. The legs 11 support the base plate 1 and the structure thereon to a certain height, and in some specific examples, provide a turning space for the aforementioned rotation of the handle 36.

Alternatively, the legs 11 may be detachably connected to opposite sides of the bottom plate 1, and the detachable connection may be a threaded bolt connection or a rivet connection.

Optionally, the legs 11 of two adjacent corners are connected by a connecting plate to enhance the supporting stability of the legs 11.

The following describes a specific structure of the calibration tooling platform 100 in an embodiment of the present invention with reference to the drawings of the specification, and the following embodiment specifically takes the calibration tooling platform 100 to calibrate the chassis 200 of the two-dimensional code navigation automated guided vehicle as an example.

Examples

A calibration tool platform 100, as shown in fig. 1, comprising: a bottom plate 1, a base 2 and two tightening structures 3. As shown in fig. 1 and 3, the bottom plate 1 is in a horizontal square plate shape, a plurality of support legs 11 are respectively arranged on two opposite sides of the bottom plate 1, and the upper surface of the bottom plate 1 is kept horizontal.

As shown in fig. 2, the middle of the bottom plate 1 is connected with a base 2 through bolts and nuts, the base 2 is rectangular, and the geometric center of the base 2 coincides with the geometric center of the bottom plate 1. The top center of base 2 is equipped with recessed recess 24 downwards, and the diapire of recess 24 is the horizontal plane, forms identification code district 23 in the recess 24, is equipped with radium carving two-dimensional code in the identification code district 23. A protruding collar around the edge of the groove 24 constitutes the chassis positioning portion 21. As shown in fig. 1, the left and right opposite side surfaces of the base 2 form wheel reference surfaces 22, and the wheel reference surfaces 22 are vertically arranged and have extremely high flatness. Two guide holes are symmetrically machined in the two wheel datum planes 22 respectively.

As shown in fig. 1 and 3, two tightening structures 3 are symmetrically disposed on the left and right sides of the base 2. Each of the tightening mechanisms 3 includes a top block 31 movable relative to the base 2, two guide posts 32, two elastic members 33, a stopper 34, a stud 35 and a handle 36. As shown in fig. 1, the top block 31 is disposed corresponding to the wheel reference surface 22 and has a side surface 311 facing the wheel reference surface 22, the side surface 311 and the wheel reference surface 22 disposed opposite thereto are parallel to each other, guide holes are disposed on the side surface 311 corresponding to two guide holes, one end of the guide post 32 is fixedly connected in the guide hole, and the other end of the guide post 32 is in clearance fit with the guide hole in a telescopic manner. A spring is sleeved on the guide post 32 as an elastic member 33, and the elastic member 33 is connected between the top block 31 and the base 2 to push the top block 31 away from the wheel reference surface 22. As shown in fig. 3 and 4, the stop 34 is stopped on the side of the top block 31 remote from the wheel reference surface 22. As shown in fig. 2, the stopper 34 is fixed to the base plate 2. A through threaded hole is formed in the stop 34 along the length direction (axial direction) of the guide column 32, the stud 35 is connected in the threaded hole, one end, close to the top block 31, of the stud 35 is suitable for being abutted against the top block 31, and a handle 36 is arranged at one end, far away from the top block 31, of the stud 35.

In the vehicle chassis 200 of the calibrated two-dimensional code navigation automatic guided transport vehicle, as shown in fig. 6, the vehicle chassis 200 is formed into a roughly circular shape, and the middle part of the vehicle chassis 200 is formed with a matching groove 230 which is matched with the annular chassis positioning part 21 in a positioning way. The fitting groove 230 is recessed inward, the code reader 210 is connected in the fitting groove 230, and the lens of the code reader 210 is disposed downward. Around the matching groove 230, a wheel 220 is symmetrically arranged on the chassis 200, the wheel 220 is formed into a driving wheel and is suitable for being connected with a motor to drive or a built-in hub motor, and the driving wheel provides driving force for the whole chassis 200. The bottom of the wheel 220 protrudes out of the bottom surface of the chassis 200 for a certain distance, the wheel 220 is a one-way wheel, and the two wheels 220 are matched to form a differential speed adjusting system. Each wheel 220 has two opposite parallel sides. A side of each wheel 220 near the mating groove 230 (near the center of the vehicle chassis 200) is adapted to contact the wheel reference surface 22 of the alignment tooling platform 100, and a side of each wheel 220 away from the mating groove 230 (away from the center of the vehicle chassis 200) is adapted to contact the side 311 of the top block 31 facing the wheel reference surface 22.

In the calibration process, the calibration tooling platform 100 is horizontally placed on a plane, the vehicle chassis 200 to be calibrated runs on the calibration tooling platform 100, the code reader 210 of the vehicle chassis 200 is aligned with the two-dimensional code of the identification code area 23 to scan the code, and meanwhile, the coordinate information of the vehicle chassis 200 is fed back and the position of the vehicle chassis 200 relative to the groove 24 is adjusted, so that the chassis positioning part 21 is positioned in the matching groove 230 of the vehicle chassis 200. Meanwhile, the code reader 210 can return the position coordinates of itself to zero after reading the code. Meanwhile, two wheels 220 run between the top block 31 and the base 2, two opposite parallel side faces respectively face the wheel reference surface 22 and the side face 311 of the top block 31, the handle 36 is rotated and the stud 35 is rotated, one end of the stud 35 pushes the top block 31, the distance between the top block 31 and the base 2 is gradually reduced, and finally the side face 311 of the top block 31 and the wheel reference surface 22 clamp the two parallel side faces of the wheels 220, so that the wheels 220 on two sides are kept parallel to each other, the wheel distance of the wheels 220 on two sides is within a preset range, and the alignment of the wheels 220 is completed. When the alignment is completed, the two studs 35 are unscrewed, the top block 31 is pushed out to both sides by the spring member 33, and the wheel 220 is released. And then, the distance and the parallelism between the wheels 220 are kept within a standard range, so that the running mechanism of the two-dimensional code navigation automatic guided vehicle is stable and has high working reliability.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Four elastic members 33 and four guide posts 32 are shown in fig. 1 for illustrative purposes, but it is obvious to those skilled in the art after reading the above technical solutions that the solution can be applied to other technical solutions of the elastic members 33 and the guide posts 32, and the invention also falls into the protection scope of the present invention.

Other configurations of the alignment tooling platform 100 for a vehicle chassis according to embodiments of the present invention, such as the travel of the vehicle chassis 200 during alignment and the adjustment of the wheels 220 of the vehicle chassis 200 after alignment, are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a calibration frock platform of vehicle chassis which characterized in that includes:

a base plate;

the base is arranged on the bottom plate, a chassis positioning part is arranged at the top of the base, wheel datum planes are respectively limited by two opposite side surfaces of the base, and the distance between the wheel datum planes and the chassis positioning part is within a preset range;

the two jacking structures comprise movable jacking blocks, and the jacking blocks are arranged corresponding to the wheel datum planes so as to jack the wheels on the wheel datum planes;

the tight structure in top still includes:

the top block is provided with a guide hole sleeved on the guide pillar;

an elastic member connected between the top block and the base to urge the top block in a direction away from the wheel reference plane;

the stop block is stopped at one side, far away from the wheel datum plane, of the ejector block;

the guide post is vertically connected to the wheel reference surface, and the side surface of the top block facing the wheel reference surface is parallel to the wheel reference surface;

the calibration tool platform is suitable for calibration installation of the identification code navigation automatic guided transport vehicle, and an identification code area used for calibrating a code reader on a chassis of the vehicle is arranged on the base.

2. The vehicle chassis calibration tool platform of claim 1, wherein a two-dimensional code sticker is pasted or a laser engraved two-dimensional code is arranged on the identification code area.

3. The calibration tooling platform for the chassis of claim 1, wherein a groove is formed in the top of the base, and the identification code area is arranged in the groove.

4. The calibration tooling platform for a vehicle chassis of claim 3, wherein the chassis positioning portion is a raised ring disposed around the edge of the groove.

5. The calibration tooling platform for a vehicle chassis of claim 1, wherein the elastic member is a spring sleeved on the guide post.

6. The calibration tooling platform for the chassis according to claim 1, wherein the stopper is provided with a threaded hole; the tight structure in top still includes: the screw bolt is rotatably matched with the threaded hole, one end of the screw bolt is propped against the jacking block, and the other end of the screw bolt is provided with a handle.

7. The calibration tooling platform for the chassis of any one of claims 1 to 6, further comprising support legs disposed at four corners of the bottom plate.