CN216833460U

CN216833460U - Installation of radar and gesture adjusting device and car before car

Info

Publication number: CN216833460U
Application number: CN202220380730.9U
Authority: CN
Inventors: 周华伟
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-06-28
Anticipated expiration: 2032-02-24

Abstract

The utility model discloses an automobile front radar mounting and attitude adjusting device and an automobile, which comprises a mounting bottom plate, a mounting bracket and a front radar, wherein the mounting bottom plate is used for being connected with an automobile body; a ball pair structure is arranged between the mounting bottom plate and the mounting bracket, so that the mounting bracket can freely rotate around the ball center of the ball pair structure; a plurality of first adjusting bolts are further arranged between the mounting bottom plate and the mounting bracket, and the parts of the mounting bracket corresponding to the first adjusting bolts can be pushed to be close to or far away from the mounting bottom plate by adjusting the first adjusting bolts; still be equipped with second adjusting bolt between mounting plate and installing support, anti-rotating structure and installing support butt under second adjusting bolt's promotion for locking the installing support and restriction installing support wind the axis rotation of the ball pair structure one end that links to each other with the installing support.

Description

Installation of radar and gesture adjusting device and car before car

Technical Field

The utility model belongs to the technical field of on-vehicle millimeter wave radar, more specifically relate to a radar installation and gesture adjusting device and car before car.

Background

The automobile is electrically and intelligently driven by the traditional fuel power year by year. At present, all large automobile main engine plants are dedicated to the research of intelligent automobiles, and since the automatic driving of the L2 level is widely applied, all companies are dedicated to the automatic driving of the L3 level and higher. The current automatic driving technology mainly utilizes a vehicle-mounted camera, a millimeter wave radar and a laser radar to cover the perception of a road environment scene, an automobile system automatically controls the driving of the automobile under certain road conditions, and the driving burden of a user is reduced. The vehicle-mounted millimeter wave radar is quite widely applied in the field of automatic driving, the requirement of the millimeter wave radar on installation errors is very high, and particularly, the front radar of an automobile generally requires that the deflection angles around the space XYZ three directions do not exceed 2 degrees. The radar is directly fixed on a sheet metal part of a vehicle in the traditional installation mode, and the sheet metal part is fixed on a front cross beam of the vehicle. When the automobile shakes too much in the running process or the front bumper is impacted, the posture of the front radar deflects. After the radar angle error grow exceeds the allowable range, the angle can only be recovered by pulling the sheet metal part, but because the toughness of the sheet metal part is very big, the adjustment is not easy, and the deflection of the sheet metal part is not well grasped accurately.

The existing technical schemes related to the front radar mounting mode are many, but most of the existing technical schemes can only adjust one or two 3-degree-of-freedom deflection directions, and cannot adjust three degrees of freedom simultaneously. The device capable of adjusting three degrees of freedom simultaneously is relatively complex in structure, convenient to adjust and not easy to fix. For example, the chinese patent CN202021573923.3 discloses a radar adjusting device and a device for vehicle-mounted radar installation calibration and verification. The device for mounting, calibrating and verifying the vehicle-mounted radar comprises a radar adjusting device and a radar checking device for providing a radar detection target; the radar adjustment device includes: the radar mounting plate, the fixing buckle, the adjusting screw and the adjusting bottom plate are arranged on the radar mounting plate; through holes for the adjusting screws to pass through are formed in four corner regions of the radar mounting plate; the tail end of the adjusting screw is provided with an external thread, and the head end of the adjusting screw is provided with a ball head matched with the fixing buckle; each adjusting screw penetrates through a corresponding through hole on the radar mounting plate, and the tail end of each adjusting screw is connected with a corresponding threaded hole on the adjusting bottom plate; the ball heads of the head ends of the adjusting screws are respectively embedded into corresponding fixing buckles, and the fixing buckles are arranged in four corner areas of the radar body mounting surface of the radar mounting plate; when the vehicle-mounted radar is installed, the installation angle of the radar can be adjusted, and the installation angle of the radar is further calibrated and verified. The device adjusts the deflection direction through four bolts, but has two key problems: 1. the bracket is not additionally connected with the floor except for the adjusting bolt, so that the radar is instable to mount; 2. the adjusting bolt is always perpendicular to the bottom plate, and after the mounting plate deflects relative to the bottom plate, the adjusting bolt does not coincide with the axis of the corresponding through hole of the mounting plate, so that the adjustment of the radar posture is limited.

Disclosure of Invention

In order to solve the problem, the utility model provides a radar installation and gesture adjusting device and car before car for the installation of car ACC self-adaptation radar before cruising makes its free angle of adjustment of being convenient for, marks the deflection angle error of preceding radar, and simple structure, installation are firm, three rotational degrees of freedom are adjustable.

In order to solve the technical problem, the utility model discloses a technical scheme is like this: the mounting and posture adjusting device for the front radar of the automobile comprises a mounting bottom plate, a mounting bracket and a front radar fixing bracket, wherein the mounting bottom plate is used for being connected with an automobile body; a ball pair structure is arranged between the mounting bottom plate and the mounting bracket, one end of the ball pair structure is connected with the mounting bottom plate, and the other end of the ball pair structure is connected with the mounting bracket, so that the mounting bracket can freely rotate around the ball center of the ball pair structure; a plurality of first adjusting bolts are further arranged between the mounting bottom plate and the mounting bracket, one ends of the first adjusting bolts are connected with the mounting bottom plate, the other ends of the first adjusting bolts are connected with the mounting bracket, and the parts of the mounting bracket corresponding to the first adjusting bolts can be pushed to be close to or far away from the mounting bottom plate by adjusting the first adjusting bolts; still be equipped with second adjusting bolt between mounting plate and installing support, the one end and the mounting plate of second adjusting bolt are connected, and the other end is equipped with anti-rotating structure, anti-rotating structure and installing support butt under second adjusting bolt's promotion for locking the installing support and restriction installing support wind the axis rotation of the one end that ball pair structure and installing support link to each other.

Preferably, the ball pair structure comprises an upper connecting rod and a lower connecting rod, one end of the upper connecting rod is connected with one end of the lower connecting rod through a ball pair, and the other ends of the upper connecting rod and the lower connecting rod are fixedly connected with the mounting bracket and the mounting base plate respectively.

Preferably, the end of the upper connecting rod/the lower connecting rod connected with the mounting bracket/the mounting base plate extends along the direction vertical to the axis to form a disc coaxial with the upper connecting rod/the lower connecting rod, a plurality of screw holes are formed in the disc, and the disc is fixedly connected with the mounting bracket/the mounting base plate through bolts.

As optimization, the mounting bracket is integrally of a rectangular plate-shaped structure, and the number of the first adjusting bolts is 3, and the first adjusting bolts are respectively arranged at 3 corners of the mounting bracket; the number of the second adjusting bolts is 1, and the second adjusting bolts are arranged at the other angle of the mounting bracket.

Preferably, the first adjusting bolt and the second adjusting bolt both comprise screw rods, adjusting nuts are connected to one ends, close to the mounting support, of the screw rods in a threaded fit mode, and the adjusting nuts are hinged or abutted to the mounting support.

Preferably, the adjusting nut is a cap-shaped adjusting nut with a spherical cap-shaped structure, and the spherical part of the adjusting nut can abut against the mounting bracket.

Preferably, the anti-rotation structure is arranged at one end, close to the mounting bracket, of the adjusting nut of the second adjusting bolt.

Preferably, the anti-rotation structure is a rubber damping pad.

Preferably, the screw rod is further provided with a support nut in a threaded fit mode, and the support nut is located on one side, away from the mounting support, of the adjusting nut.

Based on the device, the utility model also provides a car install foretell car front radar installation and gesture adjusting device on the car.

Compared with the prior art, the utility model has the advantages of as follows:

the utility model discloses a mounting plate is fixed with the panel beating hookup of car, and first adjusting bolt and second adjusting bolt are fixed in on the mounting plate through the cooperation of hexagonal locking bolt. The mounting bracket is used for fixing the front radar, and the ball pair upper connecting rod and the ball pair lower connecting rod are respectively connected with the mounting bracket and the mounting base plate through screws so as to achieve the effects of limiting three translational degrees of freedom of the mounting bracket and retaining three rotational degrees of freedom of the mounting bracket. The cap-shaped adjusting nut can move in a certain range at the tail end of the adjusting bolt to tightly push the mounting bracket and achieve the effect of adjusting the deflection posture of the mounting bracket. The structure is simple and reliable, the free adjustment of the front radar on three rotational degrees of freedom in space can be realized, and the front radar can be ensured to be kept fixed in any posture, so that the posture calibration and the adjustment after deflection of the radar are facilitated.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the connecting end of the second adjusting bolt and the mounting bracket of the present invention;

in the figure, 1 is provided with a bottom plate, 2 is provided with a support, 3 is provided with a ball pair structure, 4 is provided with a first adjusting bolt, 5 is provided with a second adjusting bolt, 6 is provided with a disc, 7 is provided with a support nut, 8 is provided with an adjusting nut, and 9 is provided with a rubber damping pad.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example (b): with reference to figures 1-2 of the drawings,

a device for mounting and attitude adjusting of an automobile front radar comprises a mounting base plate 1, a mounting bracket 2 and a front radar, wherein the mounting base plate 1 is used for being connected with an automobile body, and the mounting bracket 2 is mounted on one side of the mounting base plate 1, which is far away from the automobile body, and is used for mounting the front radar; a ball pair structure 3 is arranged between the mounting base plate 1 and the mounting support 2, one end of the ball pair structure 3 is connected with the mounting base plate 1, and the other end of the ball pair structure 3 is connected with the mounting support 2, so that the mounting support 2 can freely rotate around the center of a ball of the ball pair structure 3. The ball pair structure 3 comprises an upper connecting rod and a lower connecting rod, one end of the upper connecting rod is connected with one end of the lower connecting rod through a ball pair, and the other ends of the upper connecting rod and the lower connecting rod are fixedly connected with the mounting bracket 2 and the mounting base plate 1 respectively. One end of the upper connecting rod/the lower connecting rod, which is connected with the mounting support 2/the mounting bottom plate 1, extends along the direction vertical to the axis to form a disc 6 coaxial with the upper connecting rod/the lower connecting rod, a plurality of screw holes are formed in the disc 6, and the disc 6 is fixedly connected with the mounting support 2/the mounting bottom plate 1 through bolts.

A plurality of first adjusting bolts 4 are further arranged between the mounting base plate 1 and the mounting bracket 2, one ends of the first adjusting bolts 4 are connected with the mounting base plate 1, the other ends of the first adjusting bolts 4 are connected with the mounting bracket 2, and the parts of the mounting bracket 2 corresponding to the first adjusting bolts 4 can be pushed to be close to or far away from the mounting base plate 1 by adjusting the first adjusting bolts 4; still be equipped with second adjusting bolt 5 between mounting plate 1 and installing support 2, the one end and the mounting plate 1 of second adjusting bolt 5 are connected, and the other end is equipped with prevents that the rotating-structure, prevent that the rotating-structure is under the promotion of second adjusting bolt 5 with mounting support 2 butt for locking mounting support 2 and restriction mounting support 2 wind the axis of the one end that ball pair structure 3 links to each other with mounting support 2 rotates. The mounting bracket 2 is integrally of a rectangular plate-shaped structure, and the number of the first adjusting bolts 4 is 3, and the first adjusting bolts are respectively arranged at 3 corners of the mounting bracket 2; the number of the second adjusting bolts 5 is 1, and the second adjusting bolts are arranged at the other angle of the mounting bracket 2. First adjusting bolt 4 and second adjusting bolt 5 all include the screw rod, are connected with adjusting nut 8 at the screw rod near the one end screw-thread fit of installing support 2, adjusting nut 8 is articulated or the butt with installing support 2. The adjusting nut 8 is a cap-shaped adjusting nut 8 with a spherical cap-shaped structure, and the spherical part of the adjusting nut can be abutted against the mounting bracket 2. The anti-rotation structure is arranged at one end, close to the mounting bracket 2, of an adjusting nut 8 of the second adjusting bolt 5. The anti-rotation structure is a rubber damping pad 9. And a support nut 7 is further arranged on the screw rod in a threaded fit manner, and the support nut 7 is positioned on one side of the adjusting nut 8 departing from the mounting bracket 2.

In particular, in the utility model, the air conditioner,

1. connection of the mounting baseplate 1 with the first adjusting bolt 4 and the second adjusting bolt 5: four through holes are distributed on four corners of the mounting base plate 1, and four adjusting bolts penetrate through the four through holes and are matched with four hexagonal locking nuts to be fixed on the mounting base plate 1. As shown in fig. 1.

2. The connection of the upper and lower connecting rods of the ball pair structure 3 and the mounting base plate 1 is as follows: the bottom of the upper connecting rod and the lower connecting rod of the ball pair structure 3 are all a disc 6, four screw holes are uniformly distributed in the disc 6, and the disc 6 is fixed with the central positions of the mounting bracket 2 and the mounting base plate 1 through the four inner hexagonal cylindrical set screws in a corresponding mode.

3. Coupling of the cap-shaped adjusting nut 8 with the first adjusting bolt 4 and the second adjusting bolt 5: the cap-shaped adjusting nut 8 is screwed into the tail ends of the first adjusting bolt 4 and the second adjusting bolt 5, and the tail ends can be adjusted by 5mm up and down. The lower end of the cap-shaped adjusting nut 8 is screwed into the supporting nut 7 to play a role in preventing looseness.

4. The connection of the cap-shaped rubber damping pad 9 and the cap-shaped adjusting nut 8: the cap-shaped rubber damping pad 9 directly covers the cap-shaped adjusting nut 8, and can clamp the mounting bracket 2 and limit the rotational freedom of the mounting bracket 2 around the Z axis, as shown in FIG. 2.

Specifically, the radar attitude adjustment mode is as follows:

during the calibration process of the radar, three spatial rotation degrees of freedom are required to be adjusted, and three spatial translation degrees of freedom are required to be limited. The ball pair structure 3 has the functions of limiting three spatial translation degrees of freedom of the radar and reserving three spatial rotation degrees of freedom. The remaining X, Y two spatial degrees of freedom of rotation are limited theoretically only by the three triangularly distributed cap-shaped adjusting nuts 8, i.e. the corresponding 3 first adjusting screws 4. In use, as shown in figure 1, the cap-shaped adjusting nut a is fixed and locked, then the cap-shaped adjusting nuts b and c are adjusted to be approximately the same height as a, and the deflection error of the radar around the X axis is measured by the diagnostic instrument while the b is finely adjusted until the error tolerance range is reached. And after the error of the X axis is adjusted, fixing and locking the cap-shaped adjusting nut b, continuously fine-adjusting the c while measuring the deflection error of the radar around the Y axis by using a diagnostic instrument, and fixing and locking the cap-shaped adjusting nut c until the error enters an error allowable range. The above two steps limit rotational freedom about the X, Y axis, followed by adjustment and limitation of freedom about the Z axis. While the mounting bracket 2 is slightly rotated around the Z axis, the deflection error of the radar around the Z axis is measured by a diagnostic instrument until the error tolerance range is reached, and finally, the cover-shaped adjusting nut d is lifted to abut against the mounting bracket 2 and is locked. Due to the resilient and damping effect of the cap-shaped rubber damping pad 9, the radar mounting plate is further clamped and limited in freedom about the Z-axis.

It should be noted that only the cap-shaped rubber damping washer 9 is provided on the cap-shaped adjusting nut d corresponding to the second adjusting bolt 5, and the remaining three cap-shaped adjusting nuts 8 corresponding to the first adjusting bolt 4 are not provided, so that the cap-shaped adjusting nut d only plays a role of clamping and limiting the freedom around the Z-axis, and does not conflict with the positioning roles of the other three cap-shaped adjusting nuts 8.

The utility model discloses a mounting plate is fixed with the panel beating hookup of car, and first adjusting bolt and second adjusting bolt are fixed in on the mounting plate through the cooperation of hexagonal locking bolt. The mounting bracket is used for fixing the front radar, and the upper spherical pair connecting rod and the lower spherical pair connecting rod are respectively connected with the mounting bracket and the mounting bottom plate through screws so as to limit three translational degrees of freedom of the mounting bracket and keep three rotational degrees of freedom of the mounting bracket. The cap-shaped adjusting nut can move in a certain range at the tail end of the adjusting bolt to tightly push the mounting bracket and achieve the effect of adjusting the deflection posture of the mounting bracket. The structure is simple and reliable, the free adjustment of the front radar on three rotational degrees of freedom in space can be realized, and the front radar can be ensured to be kept fixed in any posture, so that the posture calibration and the adjustment after deflection of the radar are facilitated.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.

Claims

1. A device for mounting and attitude adjusting of an automobile front radar comprises a mounting base plate (1) used for being connected with an automobile body, wherein a mounting bracket (2) is mounted on one side of the mounting base plate (1) departing from the automobile body and used for mounting the front radar; the ball pair structure is characterized in that a ball pair structure (3) is arranged between the mounting base plate (1) and the mounting bracket (2), one end of the ball pair structure (3) is connected with the mounting base plate (1), and the other end of the ball pair structure is connected with the mounting bracket (2), so that the mounting bracket (2) can freely rotate around the ball center of the ball pair structure (3); a plurality of first adjusting bolts (4) are further arranged between the mounting base plate (1) and the mounting bracket (2), one ends of the first adjusting bolts (4) are connected with the mounting base plate (1), the other ends of the first adjusting bolts (4) are connected with the mounting bracket (2), and the parts of the mounting bracket (2) corresponding to the first adjusting bolts (4) can be pushed to be close to or far away from the mounting base plate (1) by adjusting the first adjusting bolts (4); still be equipped with second adjusting bolt (5) between mounting plate (1) and installing support (2), the one end and the mounting plate (1) of second adjusting bolt (5) are connected, and the other end is equipped with prevents changeing the structure, prevent changeing the structure under the promotion of second adjusting bolt (5) with installing support (2) butt for locking installing support (2) and restriction installing support (2) wind the axis of the one end that ball pair structure (3) and installing support (2) link to each other rotates.

2. The mounting and attitude adjusting device for automobile front radar as claimed in claim 1, wherein the ball pair structure (3) comprises an upper connecting rod and a lower connecting rod, one end of the upper connecting rod is connected with one end of the lower connecting rod through a spherical pair, and the other ends of the upper connecting rod and the lower connecting rod are respectively fixedly connected with the mounting bracket (2) and the mounting base plate (1).

3. The mounting and attitude adjusting device for the automotive front radar as claimed in claim 2, wherein the end of the upper connecting rod/lower connecting rod connected with the mounting bracket (2)/the mounting base plate (1) is extended along the direction perpendicular to the axis to form a disc (6) coaxial with the end, a plurality of screw holes are formed in the disc (6), and the disc (6) is fixedly connected with the mounting bracket (2)/the mounting base plate (1) through bolts.

4. The mounting and attitude adjusting device for the automotive front radar as claimed in claim 1, wherein the mounting bracket (2) is of a rectangular plate-shaped structure as a whole, and the number of the first adjusting bolts (4) is 3, and the first adjusting bolts are respectively arranged at 3 corners of the mounting bracket (2); the number of the second adjusting bolts (5) is 1, and the second adjusting bolts are arranged at the other angle of the mounting bracket (2).

5. The mounting and attitude adjusting device for the automotive front radar is characterized in that the first adjusting bolt (4) and the second adjusting bolt (5) both comprise a screw rod, an adjusting nut (8) is connected to one end, close to the mounting bracket (2), of the screw rod in a threaded fit manner, and the adjusting nut (8) is hinged or abutted to the mounting bracket (2).

6. The mounting and attitude adjustment device for automotive front radars according to claim 5, characterized in that the adjusting nut (8) is a cap-shaped adjusting nut (8) having a spherical cap-like structure, the spherical portion of which can be abutted against the mounting bracket (2).

7. The mounting and attitude adjustment device for automotive front radars according to claim 5 or 6, characterized in that the rotation-preventing structure is mounted at one end of the adjusting nut (8) of the second adjusting bolt (5) near the mounting bracket (2).

8. The mounting and attitude adjustment device for automotive front radars according to claim 7, characterized in that the rotation-preventing structure is a rubber damper pad (9).

9. The mounting and attitude adjusting device for the automotive front radar as recited in claim 7, characterized in that a support nut (7) is further mounted on the screw in a screw-fit manner, and the support nut (7) is located on the side of the adjusting nut (8) departing from the mounting bracket (2).

10. An automobile, characterized in that the automobile front radar mounting and attitude adjustment apparatus according to any one of claims 1 to 9 is mounted on the automobile.