CN218213437U

CN218213437U - Laser radar calibration tool

Info

Publication number: CN218213437U
Application number: CN202221627566.3U
Authority: CN
Inventors: 连岗
Original assignee: Dalian Newstar Tool Manufacture Co ltd
Current assignee: Dalian Newstar Tool Manufacture Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2023-01-03
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a laser radar calibration tool, its characterized in that: the instrument include base (1), the four corners department of base (1) is provided with universal wheel (2), is provided with stand (3) on the top face of base (1), be provided with linear guide (4) on stand (3), sliding connection has lifting support (5) on linear guide (4), the top of lifting support (5) is connected with wire rope (6), wire rope (6) winding is on moving fixed pulley group (7), and wire rope (6) end and lift crank (8) of setting on stand (3) link to each other, the bottom of linear guide (4) is provided with stopper (9), still be provided with on stand (3) with height scale (10) that linear guide (4) parallel, be provided with two sets of target board guiding mechanism on lifting support (5) symmetrically, simultaneously still be provided with one-way current mechanism on stand (3).

Description

Laser radar calibration tool

Technical Field

The utility model relates to an after-sale service field of car, especially a laser radar calibration instrument.

Background

With the continuous development of the automobile industry, the application of the function of intelligent driving is more and more extensive, and in the intelligent driving process, the vehicle-mounted laser radar of the vehicle needs to collect various information of the surrounding environment of the vehicle in real time so as to help the vehicle-mounted main control system to realize the intelligent driving. If the vehicle has an accident, the laser radar may be damaged or the position of the laser radar may be deviated, so that the laser radar needs to be corrected and calibrated again, and a radar calibration mechanism needs to be used in the calibration process. Traditional radar demarcation in-process for the target board setting of demarcation is on the support, adjusts the target board through the mode of adjusting relative position between support and vehicle (radar) during the use, and is hard when adjusting, need consume a large amount of human labor, and the degree of freedom that target board self possessed is less simultaneously, has great limitation during the regulation. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.

Disclosure of Invention

The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a simple structure, design benefit, rationally distributed, can drive the laser radar calibration instrument that the target board adjusted on a plurality of directions.

The technical solution of the utility model is that: a laser radar calibration tool is characterized in that: the tool comprises a base 1, universal wheels 2 are arranged at four corners of the base 1, a stand column 3 is arranged on the top end face of the base 1, a linear guide rail 4 is arranged on the stand column 3, a lifting support 5 is connected on the linear guide rail 4 in a sliding manner, a steel wire rope 6 is connected at the top of the lifting support 5, the steel wire rope 6 is wound on a movable pulley block 7, the tail end of the steel wire rope 6 is connected with a lifting crank 8 arranged on the stand column 3, a limiting block 9 is arranged at the bottom end of the linear guide rail 4, a height scale 10 parallel to the linear guide rail 4 is further arranged on the stand column 3, two sets of target plate adjusting mechanisms are symmetrically arranged on the lifting support 5, and meanwhile, a one-way passing mechanism is further arranged on the stand column 3,

the target board adjusting mechanism comprises an angle adjusting block 11 rotationally connected to a lifting support 5, a connecting hole is formed in the angle adjusting block 11, a support arm 12 is movably inserted in the connecting hole, a jackscrew 26 is connected to the angle adjusting block 11 in a threaded manner, the end of the jackscrew is in contact with the outer wall of the support arm 12, a target board 13 is arranged at the end of the support arm 12, a check pattern is arranged on the surface of the target board 13, a nut 14 is arranged on the top plate of the lifting support 5, a screw 15 is arranged on the top end of the screw 15 in a matching manner with the nut 14, a hand wheel 16 is arranged at the top end of the screw 15, a support frame 17 is connected to the bottom end of the screw 15, a bearing 27 is rotationally supported at the bottom end of the support frame 17, and meanwhile, the support arm 12 is positioned in the support frame 17,

the angle adjusting block 11 is provided with an indicating mark, the lifting bracket 5 is provided with an arc angle scale 18 matched with the indicating mark, the inner side of the target board 13 is also provided with an angle instrument 19,

one-way current mechanism include fixed connection connecting seat 21 on stand 3, the top of connecting seat 21 is rotated and is supported baffle 22, the top of baffle 22 is provided with bears border 23, and the edge of baffle 22 bottom then is level and smooth circular arc portion 24, still is provided with the blend stop 25 that is located the baffle 22 below simultaneously on connecting seat 21, when the base edge of baffle 22 contacts with blend stop 25, bear border 23 horizontal distribution.

The universal wheel 2 is also provided with a brake mechanism 20.

Compared with the prior art, the utility model, have following advantage:

this kind of structural style's laser radar demarcation instrument, its simple structure, design benefit, and reasonable layout, it is inconvenient to the adjustment that traditional laser radar demarcation instrument exists, adjustable direction is less, a great deal of problems such as adjustment direction singleness, a special structure has been designed, it can let the target board realize multi-direction position and gesture adjustment such as vertical adjustment, every single move regulation and rotation regulation, thereby satisfy the multiple demand of laser radar demarcation in-process to the target board adjustment, this kind of demarcation instrument's degree of freedom is higher, can accomplish the adjustment in all directions and positions in application scope, it is more convenient during the use, it is swift, the effect of demarcation and correction simultaneously is also better. And the manufacturing process is simple, the manufacturing cost is low, so that the method has various advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.

Drawings

Fig. 1 is a schematic perspective view (direction one) of the embodiment of the present invention.

Fig. 2 is a schematic perspective view (direction two) of the embodiment of the present invention.

Fig. 3 is a schematic structural view of a lifting support part in an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a supporting frame portion in an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a one-way passing mechanism part in an embodiment of the present invention.

Detailed Description

The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1 to 5: a laser radar calibration tool comprises a base 1 used as a foundation, universal wheels 2 are arranged at four corners of the base 1, an upright post 3 is arranged on the top end face of the base 1, a linear guide rail 4 is arranged on the upright post 3, a lifting support 5 is connected on the linear guide rail 4 in a sliding manner, a steel wire rope 6 is connected at the top of the lifting support 5, the steel wire rope 6 is wound on a movable fixed pulley block 7, the tail end of the steel wire rope 6 is connected with a lifting crank 8 arranged on the upright post 3, a limiting block 9 is arranged at the bottom end of the linear guide rail 4, a height scale 10 parallel to the linear guide rail 4 is further arranged on the upright post 3, two sets of target plate adjusting mechanisms are symmetrically arranged on the lifting support 5, and meanwhile, a one-way passing mechanism is further arranged on the upright post 3,

the one-way passing mechanism comprises a connecting seat 21 fixedly connected to the upright post 3, a baffle 22 is rotatably supported at the top of the connecting seat 21, a bearing edge 23 is arranged at the top of the baffle 22, a smooth arc portion 24 is arranged at the edge of the bottom of the baffle 22, a barrier strip 25 located below the baffle 22 is further arranged on the connecting seat 21, and when the bottom edge of the baffle 22 is in contact with the barrier strip 25, the bearing edge 23 is horizontally distributed.

The universal wheel 2 is also provided with a brake mechanism 20.

The utility model discloses laser radar calibration tool's working process as follows: when needing to calibrate laser radar, promote the motion of base 1, drive two targets board 13 on it and move and stop after the suitable distance with laser radar, and step on brake mechanism 20, it is fixed with base 1, then according to the laser radar calibrated concrete requirement, adjust the height and the every single move angle of targets board 13, can also drive targets board 13 and use the axis of support arm 12 as the rotation of center if necessary, change targets board 13 position and gesture in space, in order to satisfy laser radar's calibration requirement, because this calibration tool has a plurality of degrees of freedom, therefore it is very convenient, swift to adjust.

When the height of the target board 13 needs to be adjusted, an operator only needs to rotate the lifting crank 8, the steel wire rope 6 connected to the lifting crank 8 drives the lifting support 5 to move longitudinally through the movable pulley block 7, the lifting support 5 slides on the linear guide rail 4 in the process, and the operator can determine the height of the lifting support 5 and the target board 13 on the lifting support by observing the height scale 10;

when the pitch angle of the target board 13 needs to be adjusted, an operator only needs to rotate the hand wheel 16 to drive the screw rod 15 to rotate, and the nut 14 matched with the screw rod 15 is fixedly arranged on the top plate of the lifting support 5, so that the action drives the screw rod 15 to move longitudinally, and further drives the support frame 17 at the bottom end of the support frame to move longitudinally, so that the support arm 12 in the support frame 17 can move along with the movement of the support frame 17, and finally the swing action of the support arm 12 with the angle adjusting block 11 as a fulcrum is realized; in the above process, the operator can observe the scale corresponding to the indication mark on the angle adjustment block 11 and the arc angle scale 18 to determine the swing angle of the target plate 13 at the moment;

when the spatial posture of the target board 13 needs to be changed, an operator can firstly loosen the jackscrew 26, then manually drive the support arm 12 to rotate relative to the connecting hole of the angle adjusting block 11, observe the angle instrument 19 in the rotating process, stop adjusting after the target board 13 is adjusted to a required angle, and tighten the jackscrew 26 again;

two sets of target board adjusting mechanisms are symmetrically arranged on the lifting support 5, namely the tool comprises two target boards 13, in actual work, different checking patterns are arranged on the two target boards 13, and an operator can select a proper target board 13 to carry out calibration operation according to actual needs;

in order to protect the lifting crank 8 on the upright post 3, a one-way passing mechanism is further arranged on the upright post 3 above the lifting crank 8, when the lifting support 5 moves from the lower part of the one-way passing mechanism to the upper part of the one-way passing mechanism, the lifting support 5 can drive the lifting support to swing upwards after contacting with the baffle 22 until the lifting support 5 rises to the upper part of the one-way passing mechanism, the baffle 22 naturally falls and contacts with the barrier strips 25 under the action of gravity, at the moment, the bearing edges 23 are horizontally distributed, if the steel wire rope 6 is disconnected in the calibration process, the lifting support 5 integrally falls down and also falls onto the baffle 22, the lifting crank 8 below the one-way passing mechanism cannot be damaged, and the personal safety of operators can be protected as well.

Claims

1. A laser radar calibration tool is characterized in that: the tool comprises a base (1), universal wheels (2) are arranged at four corners of the base (1), a stand column (3) is arranged on the top end face of the base (1), a linear guide rail (4) is arranged on the stand column (3), a lifting support (5) is connected on the linear guide rail (4) in a sliding manner, a steel wire rope (6) is connected at the top of the lifting support (5), the steel wire rope (6) is wound on a movable pulley block (7), the tail end of the steel wire rope (6) is connected with a lifting crank (8) arranged on the stand column (3), a limiting block (9) is arranged at the bottom end of the linear guide rail (4), a height scale (10) parallel to the linear guide rail (4) is further arranged on the stand column (3), two sets of target plate adjusting mechanisms are symmetrically arranged on the lifting support (5), and an one-way passing mechanism is further arranged on the stand column (3),

the target board adjusting mechanism comprises an angle adjusting block (11) rotatably connected to a lifting support (5), a connecting hole is formed in the angle adjusting block (11), a support arm (12) is movably inserted in the connecting hole, a jackscrew (26) is in threaded connection with the angle adjusting block (11), the end of the jackscrew is in contact with the outer wall of the support arm (12), a target board (13) is arranged at the end of the support arm (12), a check pattern is arranged on the surface of the target board (13), a nut (14) is arranged on the top plate of the lifting support (5), a screw (15) is arranged in a manner of being matched with the nut (14), a hand wheel (16) is arranged at the top end of the screw (15), the bottom end of the screw (15) is connected with a support frame (17), a bearing (27) is rotatably supported at the bottom end of the support frame (17), and the support arm (12) is positioned in the support frame (17),

the angle adjusting block (11) is provided with an indicating mark, the lifting bracket (5) is provided with an arc angle scale (18) matched with the indicating mark, and the inner side of the target plate (13) is also provided with an angle instrument (19),

one-way current mechanism include connecting seat (21) of fixed connection on stand (3), the top rotation support of connecting seat (21) has baffle (22), the top of baffle (22) is provided with bears border (23), and the edge of baffle (22) bottom then is level and smooth circular arc portion (24), still is provided with blend stop (25) that are located baffle (22) below simultaneously on connecting seat (21), when the bottom border of baffle (22) contacts with blend stop (25), bear border (23) horizontal distribution.

2. The lidar calibration tool of claim 1, wherein: and the universal wheel (2) is also provided with a brake mechanism (20).