Radar positioning tool

Abstract

The utility model provides a radar positioning tool, and relates to the technical field of automobile part assembly, in particular to the technical field of vehicles. According to the specific implementation scheme, the radar positioning tool comprises a positioning support, a fastening assembly and a guiding assembly, the positioning support is provided with a first limiting face opposite to the first direction and a second limiting face opposite to the second direction, and an angle is formed between the first direction and the second direction; the vehicle body is provided with a first reference surface opposite to the first direction and a second reference surface opposite to the second direction, the first limiting surface makes contact with the first reference surface in an attached mode, the second limiting surface makes contact with the second reference surface in an attached mode, the fastening assembly is installed on the positioning support and can be connected with the vehicle body in a fastened mode, and the guiding assembly is installed on the positioning support. A guide groove extending in the first direction is defined by the guide assembly, and the radar module is suitable for being slidably matched in the guide groove in the first direction. Therefore, the radar positioning tool has the advantages that the installation precision of the radar on the vehicle body is high, the off-line repair rate of the whole vehicle is low, and the dynamic calibration failure rate is low.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts assembly, in particular to the technical field of vehicles, and specifically to a radar positioning tool. Background Art

[0002] The autonomous driving function relies on sensors such as LiDAR. LiDAR is similar to human eyes. There should be no FOV (field of view) obstruction at the extreme position tolerance and extreme angle tolerance. That is, when it is working, it is required to ensure that the LiDAR FOV covers the blind spots on the side of the vehicle body and does not scan the surrounding parts such as the vehicle body and bumper, so as to ensure zero blind spots around the vehicle and cover 360°. Among them, the error angle analysis calculation of the radar is defined in three directions: the pitch angle Pitch is rotated around the X (body length direction) axis, the yaw angle Yaw is rotated around the Y (body width direction) axis, and the roll angle Roll is rotated around the Z (body height direction) axis. Only when the above requirements are met can the normal measurement of the distance, azimuth, pitch angle and speed of the target relative to the LiDAR be met, so as to be able to predict the target parameter values ​​at future times.

[0003] In the related technology, the laser radar at the front end of the car body is basically installed on the fender. However, as an adjustment part, the fender needs to match the appearance gap and surface difference with the surrounding parts, and its own position accuracy is low, and thus the accuracy of the laser radar after assembly cannot be guaranteed. At the same time, as a flexible part, the fender has its own high vibration frequency and cannot meet the modal requirements of the laser radar stability. It also cannot solve the problems of high return rate of the laser radar vehicle off the line and high failure rate of dynamic calibration. Utility Model Content

[0004] The present application provides a radar positioning tool.

[0005] According to one aspect of the present application, a radar positioning tool is provided, which is used for being detachably mounted on a vehicle body, comprising:

[0006] A positioning bracket, the positioning bracket having a first limiting surface opposite to a first direction and a second limiting surface opposite to a second direction, the first direction and the second direction form an angle, the vehicle body having a first reference surface opposite to the first direction and a second reference surface opposite to the second direction, the first limiting surface is in contact with the first reference surface, and the second limiting surface is in contact with the second reference surface;

[0007] A fastening assembly, the fastening assembly being mounted on the positioning bracket and capable of being fastened to the vehicle body; and

[0008] A guide assembly is installed on the positioning bracket, the guide assembly defines a guide groove extending along the first direction, and the radar module is suitable for being slidably fitted in the guide groove along the first direction.

[0009] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present application.

[0011] Figure 1 is a schematic diagram of a radar positioning tool provided according to an embodiment of the present application;

[0012] Figure 2 It is a schematic diagram of assembling the radar positioning tooling and the vehicle body according to the embodiment of the present application;

[0013] Figure 3 yes Figure 2 A top view of

[0014] Figure 4 It is a schematic diagram of the car body;

[0015] Figure 5 This is a partial enlarged schematic diagram of the radar bracket on the vehicle body.

[0016] Description of reference numerals in the accompanying drawings:

[0017] 1. Positioning bracket; 11. First positioning column; 12. Second positioning column; 13. First limiting surface; 14. Second limiting surface; 2. Clamp; 3. Guide assembly; 31. First positioning block; 311. First positioning surface; 32. Second positioning block; 321. Second positioning surface; 33. Third positioning block; 331. Third positioning surface; 4. A-pillar; 41. First positioning hole; 42. First reference surface; 43. Skirt; 5. Front side beam; 51. Second positioning hole; 52. Second reference surface; 6. Radar bracket. DETAILED DESCRIPTION

[0018] The following is a description of exemplary embodiments of the present application in conjunction with the accompanying drawings, including various details of the embodiments of the present application to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0019] like Figure 1 - Figure 5As shown, the radar positioning tooling according to the embodiment of the present application is used for detachable installation on the vehicle body, which includes a positioning bracket 1, a fastening assembly and a guide assembly 3. The positioning bracket 1 has a first limiting surface 13 opposite to the first direction and a second limiting surface 14 opposite to the second direction, the first direction is at an angle to the second direction, the vehicle body has a first reference surface 42 opposite to the first direction and a second reference surface 52 opposite to the second direction, the first limiting surface 13 is in contact with the first reference surface 42, and the second limiting surface 14 is in contact with the second reference surface 52. The fastening assembly is installed on the positioning bracket 1, and the fastening assembly can be fastened to the vehicle body. The guide assembly 3 is installed on the positioning bracket 1, and the guide assembly 3 defines a guide groove extending along the first direction, and the radar module is suitable for being slidably fitted in the guide groove along the first direction.

[0020] According to the radar positioning fixture of the embodiment of the present application, the positioning fixture first contacts with the first reference surface 42 and the second reference surface 52 on the vehicle body through the first limiting surface 13 and the second limiting surface 14 respectively, and then the positioning bracket 1 is fastened to the vehicle body through the fastening assembly to achieve the fixed installation of the positioning fixture on the vehicle body. Among them, the setting of pressing the first limiting surface 13 and the second limiting surface 14 against the first reference surface 42 and the second reference surface 52 on the vehicle body respectively ensures the installation accuracy of the positioning bracket 1 relative to each vehicle body, and then ensures the position accuracy of the guide groove formed by the guide assembly 3 fixed on the positioning bracket 1 relative to the vehicle body, so that the radar module can slide in the guide groove to abut against the set position of the vehicle body, and after the radar module is fastened to the vehicle body under the guidance of the guide groove, the installation accuracy of the radar module on the vehicle body is effectively guaranteed.

[0021] Among them, the positioning tooling is connected to the body with higher positioning accuracy, rather than to the fender with worse positioning accuracy, and the radar module is finally positioned and installed on the body without considering the defect of the fender's own high vibration frequency. This further ensures the assembly accuracy and mode of the radar module on the whole vehicle, the whole vehicle off-line repair rate is lower, and the dynamic calibration failure rate is low.

[0022] It should be noted that the first direction is preferably perpendicular to the second direction, the first direction is the width direction of the vehicle body, and the second direction is the height direction of the vehicle body.

[0023] For ease of understanding, Figure 1 The direction indicated by the arrow Y is the first direction of the radar positioning tooling according to the embodiment of the present application. Figure 1 The direction indicated by the middle arrow Z is the second direction of the radar positioning tooling according to the embodiment of the present application. Figure 1 The direction indicated by the middle arrow X is the third direction of the radar positioning tooling according to the embodiment of the present application.

[0024] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the positioning bracket 1 is provided with a first positioning column 11 extending along the first direction, the vehicle body is provided with a first positioning hole 41 extending along the first direction, and the first positioning column 11 is suitable for self-rotatingly fitting in the first positioning hole 41 .

[0025] The first limiting surface 13 and the second limiting surface 14 are respectively arranged to fit in contact with the first reference surface 42 and the second reference surface 52 on the vehicle body, thereby ensuring that the positioning bracket 1 is relatively fixed relative to the vehicle body in the first direction and the second direction. The plug-in cooperation between the first positioning column 11 and the first positioning hole 41 ensures that the positioning bracket 1 is relatively fixed relative to the vehicle body in directions other than the first direction and the second direction, thereby effectively avoiding the positioning bracket 1 from moving accidentally when the fastening assembly is fastened to the vehicle body, thereby further ensuring the position accuracy of the positioning bracket 1 on the vehicle body and ensuring the installation position accuracy of the radar module on the vehicle.

[0026] Specifically, the cross-sectional outer contours of the first positioning hole 41 and the first positioning column 11 are both circular, and the first positioning column 11 and the first positioning hole 41 are clearance-fitted.

[0027] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the positioning bracket 1 is provided with a second positioning column 12 extending along the second direction, and the body is provided with a second positioning hole 51 extending along the second direction. The second positioning column 12 is fitted in the second positioning hole 51 and can slide along the third direction. The third direction, the first direction and the second direction are perpendicular to each other.

[0028] The cooperation between the second positioning column 12 and the second positioning hole 51 further ensures the relative fixation of the positioning bracket 1 and the vehicle body in any direction, that is, before the fastening assembly is connected to the vehicle body, no external force is required to ensure that the first limiting surface 13 and the second limiting surface 14 of the positioning bracket 1 are respectively against the first reference surface 42 and the second reference surface 52.

[0029] Specifically, the cross-sectional outer contour of the second positioning hole 51 is a waist-shaped hole or a strip-shaped hole extending along the third direction, so that when the first positioning column 11 is matched with the first positioning hole 41 and the positioning bracket 1 is rotated relative to the vehicle body around the axis of the first positioning column 11, it can ensure that the second positioning column 12 is reliably inserted into the second positioning hole 51. At this time, the matching of the second positioning column 12 and the second positioning hole 51 also realizes the relative fixation of the positioning bracket 1 and the vehicle body in the first direction.

[0030] In some embodiments of the present application, Figure 2 - Figure 4As shown, the vehicle body includes an A-pillar 4 and a front side beam 5. The A-pillar 4 is provided with a first positioning hole 41 and a first reference surface 42. The front side beam 5 is provided with a second positioning hole 51 and a second reference surface 52. The second direction is the height direction. The positioning bracket 1 is overlapped on the second reference surface 52 through the second limiting surface 14.

[0031] Therefore, it is only necessary to insert the first positioning column 11 into the first positioning hole 41, and then rotate the positioning bracket 1 to insert the second positioning column 12 into the second positioning hole 51 from top to bottom until the positioning bracket 1 overlaps the second reference surface 52, thereby realizing the pre-installation of the positioning bracket 1 on the vehicle body, and the radar positioning tooling is easy to install on the vehicle body with high installation accuracy.

[0032] Specifically, the A-pillar 4 and the front side beam 5 of the vehicle body are both adjacent to the fender, the first positioning hole 41 and the first reference plane 42 are the original surface and hole on the A-pillar 4, the second positioning hole 51 and the second reference plane 52 are the original surface and hole on the front side beam 5, and on the basis of ensuring that the installation error of the front side beam 5 and the A-pillar 4 is within the set range, the coordination of the positioning bracket 1 with the above-mentioned positioning holes and reference planes ensures the installation accuracy of the radar positioning tooling on the vehicle body.

[0033] In some embodiments of the present application, Figure 1 and Figure 2 As shown, there are two first limiting surfaces 13 which are spaced apart along the second direction, there are two first reference surfaces 42 which are both front door hinge mounting surfaces of the vehicle body, and the two first limiting surfaces 13 are in contact with the two first reference surfaces 42 respectively.

[0034] That is, the positioning bracket 1 is in contact with the hinge mounting surface with higher strength and higher positioning accuracy on the vehicle body through the first limiting surfaces 13 at two different positions, further reducing the rotation error angle of the positioning bracket 1 relative to the vehicle body on the X-axis, and further ensuring the installation accuracy of the positioning bracket 1 on the vehicle body.

[0035] In some embodiments of the present application, the fastening assembly includes a clamp 2 , the A-pillar 4 includes a skirt 43 facing away from the front side beam 5 , and the clamp 2 is suitable for clamping on the skirt 43 .

[0036] After the positioning bracket 1 is pre-installed on the vehicle body, the clamp 2 clamps the skirt 43 on the A-pillar 4, thus realizing the installation of the radar positioning tool on the vehicle body. The radar positioning tool is easy to disassemble and assemble on the vehicle body, and the radar is efficiently assembled on the vehicle body.

[0037] The structure of the clamp 2 of this embodiment is the same as that of the quick clamp in the related art, and both of them realize the clamping and separation of the skirt 43 by bending the armrest. The specific structure and use method thereof are not repeated here. At the same time, the first positioning column 11 and the clamp 2 are respectively arranged on both sides of the positioning bracket 1 in the X direction, and the cooperation between the two effectively reduces the rotation error angle of the positioning bracket 1 in the Z axis.

[0038] In some embodiments of the present application, there are at least two fastening components and they are arranged at intervals along the second direction.

[0039] The arrangement of at least two fastening components spaced apart along the second direction can more reliably place the two first limiting surfaces 13 against the corresponding first reference surfaces 42 , further ensuring the installation accuracy of the positioning bracket 1 on the vehicle body.

[0040] Specifically, Figure 1 and Figure 2 As shown, there are two fastening components, which are respectively adjacent to the two ends of the positioning bracket 1 in the height direction, and the two fastening components are respectively adjacent to the two first limiting surfaces 13 to further ensure the fitting contact between the two first limiting surfaces 13 and the corresponding first reference surfaces 42 .

[0041] In some embodiments of the present application, Figure 3 As shown, the guide assembly 3 includes a first positioning block 31, a second positioning block 32 and a third positioning block 33 fixedly connected to the positioning bracket 1. The first positioning block 31 is formed with a first positioning surface 311 opposite to the second direction, the second positioning block 32 and the third positioning block 33 are arranged at intervals along the third direction and are respectively formed with a second positioning surface 321 and a third positioning surface 331 opposite to the third direction, and the first positioning surface 311, the second positioning surface 321 and the third positioning surface 331 surround and form a guide groove.

[0042] That is, the guide groove is opened at one end in the second direction, and the radar module can be inserted into the guide groove through the opening, so as to reduce the difficulty of fitting the radar module into the guide groove.

[0043] Specifically, the first positioning block 31, the second positioning block 32 and the third positioning block 33 are all fixedly mounted on the positioning bracket 1 by screws, and the first positioning surface 311 is located below the second positioning surface 321 and the third positioning surface 331 to support the radar module. Therefore, after the radar module is placed in the guide groove, it only needs to give the radar module a thrust along the first direction to drive the radar module to slide relative to the guide groove to cooperate with the vehicle body.

[0044] In some embodiments of the present application, the position of the first positioning block 31 in the second direction relative to the positioning bracket 1 is adjustable, and the position of the second positioning block 32 and the third positioning block 33 in the third direction relative to the positioning bracket 1 is adjustable. Alternatively, each of the first positioning block 31, the second positioning block 32 and the third positioning block 33 includes a plurality of detachably stacked gaskets.

[0045] The above settings can make the cross-sectional outer contour size of the guide groove adjustable to adapt to radar modules of different sizes, and radar modules of different sizes can be accurately installed on the vehicle body, and the application range of the radar positioning tooling is wider.

[0046] Specifically, when each of the first positioning block 31, the second positioning block 32 and the third positioning block 33 includes a plurality of detachably stacked gaskets, the outer contour size of the cross section of the guide groove can be changed by disassembling and assembling different numbers of gaskets. Alternatively, the first positioning block 31, the second positioning block 32 and the third positioning block 33 can slide on the positioning bracket 1 to change the relative positions of the three, thereby achieving the adjustment of the outer contour size of the cross section of the guide groove.

[0047] In some embodiments of the present application, Figure 4 and Figure 5 As shown, the radar module includes a radar bracket 6 and a radar (not shown in the figure). The radar bracket 6 is fixedly mounted on the front side beam 5. The radar is connected to the radar bracket 6 through at least three threaded members. The radar is suitable for sliding in the guide groove along the first direction to abut against the radar bracket 6.

[0048] The radar bracket 6 is pre-welded on the front side beam 5, and the radar positioning tooling is mainly used to accurately install the radar in the radar module on the front side beam 5. When assembling the radar, the radar is first pre-installed on the radar bracket 6 through the threaded parts. After the radar positioning tooling is installed on the vehicle body, the radar is pushed into the guide groove and slid toward the direction close to the radar bracket 6 until the radar abuts against the radar bracket 6, and then the threaded parts are tightened to achieve reliable and accurate installation of the radar on the radar bracket 6.

[0049] Specifically, the first positioning surface 311, the second positioning surface 321 and the third positioning surface 331 are respectively in contact with the bottom surface, the front side surface and the rear side surface of the radar. The radar bracket 6 is provided with four threaded holes, and the radar is correspondingly provided with four mounting holes. The aperture of the mounting hole is larger than the aperture of the threaded hole. The threaded member is a bolt. After the radar is in contact with the radar bracket 6, the bolt passes through the mounting hole and is threadedly matched with the threaded hole. Among them, the clearance between the bolt and the mounting hole is matched, so that the bolt and the mounting hole are adjustable in the radial direction of the mounting hole, thereby facilitating the adjustment of the position of the radar relative to the radar bracket 6, and ensuring that the radar is accurately installed at the set position of the radar bracket 6.

[0050] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A radar positioning tool for detachably mounting on a vehicle body, wherein: include: A positioning bracket, the positioning bracket having a first limiting surface opposite to a first direction and a second limiting surface opposite to a second direction, the first direction and the second direction form an angle, the vehicle body having a first reference surface opposite to the first direction and a second reference surface opposite to the second direction, the first limiting surface is in contact with the first reference surface, and the second limiting surface is in contact with the second reference surface; A fastening assembly, the fastening assembly is mounted on the positioning bracket, and the fastening assembly can be fastened to the vehicle body; and A guide assembly is installed on the positioning bracket, the guide assembly defines a guide groove extending along the first direction, and the radar module is suitable for being slidably fitted in the guide groove along the first direction.

2. The radar positioning tool according to claim 1, wherein: The positioning bracket is provided with a first positioning column extending along the first direction, the vehicle body is provided with a first positioning hole extending along the first direction, and the first positioning column is suitable for being rotatably fitted in the first positioning hole.

3. The radar positioning tool according to claim 2, wherein: The positioning bracket is provided with a second positioning column extending along the second direction, the body is provided with a second positioning hole extending along the second direction, the second positioning column is fitted in the second positioning hole and can slide along a third direction, and the third direction, the first direction and the second direction are perpendicular to each other.

4. The radar positioning tool according to claim 3, wherein: The vehicle body comprises an A-pillar and a front side beam, the A-pillar is provided with the first positioning hole and the first reference surface, and the front side beam is provided with the second positioning hole and the second reference surface; The second direction is a height direction, and the positioning bracket is overlapped on the second reference surface through the second limiting surface.

5. The radar positioning tool according to any one of claims 1 to 4, wherein: There are two first limiting surfaces which are arranged at intervals along the second direction, there are two first reference surfaces which are both front door hinge mounting surfaces of the vehicle body, and the two first limiting surfaces are respectively in contact with the two first reference surfaces.

6. The radar positioning tool according to claim 4, wherein: The fastening assembly includes a clamp, the A-pillar includes a skirt facing away from the front rail, and the clamp is adapted to clamp onto the skirt.

7. The radar positioning tool according to claim 4 or 6, wherein: There are at least two fastening components which are arranged at intervals along the second direction.

8. The radar positioning tool according to claim 3, wherein: The guide assembly includes a first positioning block, a second positioning block and a third positioning block fixedly connected to the positioning bracket, the first positioning block is formed with a first positioning surface opposite to the second direction, the second positioning block and the third positioning block are arranged at intervals along the third direction and are respectively formed with a second positioning surface and a third positioning surface opposite to the third direction, the first positioning surface, the second positioning surface and the third positioning surface surround the guide groove.

9. The radar positioning tool according to claim 8, wherein: The position of the first positioning block relative to the positioning bracket in the second direction is adjustable, and the positions of the second positioning block and the third positioning block relative to the positioning bracket in the third direction are adjustable; Alternatively, each of the first positioning block, the second positioning block and the third positioning block includes a plurality of detachably stacked gaskets.

10. The radar positioning tool according to claim 4, wherein: The radar module includes a radar bracket and a radar. The radar bracket is fixedly mounted on the front side beam. The radar is connected to the radar bracket via at least three screw members. The radar is suitable for sliding in the guide groove along the first direction to abut against the radar bracket.

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