Rotation adjusting device and calibration equipment

Abstract

The embodiment of the utility model relates to the technical field of automobile maintenance and equipment calibration, and discloses a rotation adjusting device and calibration equipment. The rotation adjusting device comprises a base, a carrying table and a driving assembly. The carrying table comprises a hinge part and a brake part, and the carrying table is hinged to the base through the hinge part. The driving assembly is arranged on the base and connected with the braking part, and the driving assembly is used for driving the braking part to rotate around the hinge axis of the hinge part relative to the base so as to drive the carrying table to rotate. According to the rotation adjusting device, the calibration device is installed on the carrying table, the carrying table drives the calibration device to rotate by a specific angle, compared with an adjusting mode of manual placement and repeated installation, potential error sources are avoided, and meanwhile rotation adjusting operation is more convenient.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of automobile maintenance and equipment calibration, and in particular to a rotation adjustment device and a calibration device. Background Art

[0002] In measurement application scenarios such as automobile calibration, some targets, cameras, sensors and other devices are manually placed and repeatedly installed to adjust the steering, which brings potential sources of error and operational inconvenience. For example, due to the instability of manual operation, the calibration device may move slightly during the adjustment process, thus affecting the accuracy of the measurement results. These factors may affect the calibration results. Utility Model Content

[0003] One purpose of the embodiments of the present application is to provide a rotation adjustment device and a calibration device to solve the technical problems of errors and inconvenience in operation of steering adjustment methods that are manually placed and repeatedly installed.

[0004] In one aspect, an embodiment of the present application provides a rotation adjustment device, comprising:

[0005] Pedestal;

[0006] A carrier, the carrier comprising a hinge part and a brake part, the carrier being hinged to the base via the hinge part; and

[0007] A driving assembly is disposed on the base and connected to the braking part, and is used for driving the braking part to rotate so as to drive the carrier to rotate.

[0008] Optionally, the platform further includes a platform body, the hinged portion and the brake portion are respectively located at two ends of the platform body in the length direction, and the hinged portion is a hinge axis;

[0009] The base comprises a hinge hole and a receiving groove, the hinge hole is sleeved on the hinge part, the braking part is received in the receiving groove, and can rotate relative to the base around the hinge axis in the receiving groove.

[0010] Optionally, the carrier body includes:

[0011] A mounting portion, wherein a bottom end surface of the mounting portion is connected to the hinge portion, and a top end surface of the mounting portion is used for mounting a calibration device; and

[0012] A connecting handle, one end of which is connected to the mounting portion, and the other end of which is connected to the braking portion;

[0013] The width of the connecting handle near the mounting portion is greater than the width of the connecting handle near the braking portion, and the width of the connecting handle gradually decreases from the middle of the connecting handle to the portion near the braking portion until it becomes the same as the width of the braking portion.

[0014] Optionally, the receiving groove comprises a first limiting wall and a second limiting wall which are arranged opposite to each other, and a threaded through hole is provided on a side of the first limiting wall which faces the second limiting wall;

[0015] The braking portion is located between the first limiting wall and the second limiting wall, and the braking portion includes a first braking surface facing the threaded through hole and a second braking surface facing the second limiting wall;

[0016] The drive assembly comprises:

[0017] a brake member, the brake member comprising a knob and a threaded rod threadably matched with the threaded through hole, the knob being located outside the base, one end of the threaded rod passing through the threaded through hole and abutting against the first brake surface, and the other end of the threaded rod being connected to the knob; and

[0018] An elastic member, one end of the elastic member abuts against the second braking surface, and the other end of the elastic member abuts against the second limiting wall.

[0019] In a second aspect, an embodiment of the present application provides a calibration device, including:

[0020] A main frame, the main frame comprising a crossbeam;

[0021] A projection module, the projection module is used to project a reference line for placing the calibration pattern on the calibration plane; and

[0022] an adjusting module, the adjusting module being connected to the crossbeam, the projection module being mounted on the adjusting module, and the adjusting module being used to adjust the state of the reference line by adjusting the posture of the projection module;

[0023] Wherein, the adjustment module comprises the rotation adjustment device as described above, the projection module is mounted on the carrier, and the rotation adjustment device is used to rotate the projection module to adjust the angle of the reference line on the calibration plane.

[0024] Optionally, the projection module includes two projection units, and the projection unit includes a reference line light outlet, and the reference line light outlet is used to project the reference line on the calibration plane;

[0025] There are two rotation adjustment devices, each of the projection units is installed on the carrier of a corresponding rotation adjustment device, and the rotation adjustment device is used to adjust the reference line of the correspondingly installed projection unit to be parallel to the reference line of another projection unit.

[0026] Optionally, the calibration device further comprises a calibration panel, and the calibration panel is arranged on one of the stage and the projection unit;

[0027] The projection unit also includes a calibration line light outlet, which is used to project a calibration line. The calibration line and the reference line projected by any of the projection units are perpendicular to each other. The calibration line of any of the projection units can be projected onto the calibration panel of the correspondingly installed rotation adjustment device and the calibration panel of the other rotation adjustment device respectively, and can be moved on the calibration panel of the other rotation adjustment device under the adjustment of the correspondingly installed rotation adjustment device.

[0028] Optionally, the calibration panel includes a translucent first area and a non-transparent second area, the first area and the second area are adjacent to each other in a vertical direction, and a light exit hole is provided on the first area, and the light exit hole is directly opposite to the calibration line light exit port of the projection unit;

[0029] The calibration line of any one of the projection units can be projected onto the first area on the calibration panel of the correspondingly installed rotation adjustment device, and can be projected onto the calibration panel of another rotation adjustment device through the light exit hole.

[0030] Optionally, the adjustment module further includes a sliding component, wherein the sliding component is respectively connected to the crossbeam and the rotation adjustment device, and the sliding component can drive the rotation adjustment device to slide relative to the crossbeam in the length direction of the crossbeam.

[0031] Optionally, the crossbeam is provided with a horizontal sliding track, and the sliding assembly comprises:

[0032] A slider, the slider is arranged on the sliding track and can slide relative to the crossbeam in the length direction of the sliding track;

[0033] A first connecting member, the first connecting member is connected to the slider, and a first positioning portion is provided on the first connecting member; and

[0034] The second connecting member is detachably connected to the first connecting member, the second connecting member comprises a second positioning portion used in conjunction with the first positioning portion, and the first positioning portion and the second positioning portion are connected in conjunction with each other.

[0035] The embodiments of the present application can achieve the following technical effects: the rotation adjustment device of the embodiments of the present application installs the calibration device on the carrier, and drives the braking part to rotate relative to the base around the hinge axis of the hinge part through the driving component, so as to drive the carrier to rotate relative to the base around the hinge axis of the hinge part, thereby driving the calibration device to rotate a specific angle. Compared with the adjustment method of manual placement and repeated installation, it avoids potential sources of errors and the rotation adjustment operation is more convenient.

[0036] Furthermore, the calibration device of the embodiment of the present application adopts a rotating adjustment device, the projection module projects the placement reference line of the calibration pattern, and adjusts it through the adjustment module. Compared with the use of a tape measure and bottom marking method to provide placement reference lines, the reference lines provided by the calibration device of the embodiment of the present application are more accurate and easy to operate and adjust, which is conducive to improving the calibration quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] One or several embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0038] Figure 1 A schematic diagram of the structure of a rotation adjustment device provided in an embodiment of the present application;

[0039] Figure 2 An exploded diagram of the structure of a rotation adjustment device provided in an embodiment of the present application;

[0040] Figure 3 Another structural schematic diagram of a rotation adjustment device provided in an embodiment of the present application;

[0041] Figure 4 A schematic diagram of the structure of a calibration device provided in an embodiment of the present application;

[0042] Figure 5 This is a schematic diagram of the structure of a projection module and a rotation adjustment module of a calibration device according to an embodiment of the present application;

[0043] Figure 6 Another structural schematic diagram of a calibration device according to an embodiment of the present application;

[0044] Figure 7 Another structural schematic diagram of a projection module and a rotation adjustment module of a calibration device provided in an embodiment of the present application;

[0045] Figure 8 A schematic diagram of the structure of a calibration panel of a calibration device provided in an embodiment of the present application;

[0046] Fig. 9A schematic structural diagram of a first connecting member and a second connecting member of a sliding assembly provided in an embodiment of the present application.

[0047] Description of labels:

[0048] 100, calibration device; 10, adjustment module; 11, rotation adjustment device; 111, base; 1111, hinge hole; 1112, receiving groove; 1113, first limiting wall; 11131, threaded through hole; 1114, second limiting wall; 112, carrier; 1121, carrier body; 11211, mounting part; 11212, connecting handle; 1122, hinged part; 1123, braking part; 11231, first braking surface; 11232, second braking surface; 113, driving assembly; 1131, braking member; 11311, knob; 11312, threaded rod; 1132, elastic member; 114, spring pad sheet; 115, first rotating washer; 116, second rotating washer; 117, end cover; 1171, flange; 12, sliding assembly; 121, slider; 122, first connecting member; 1221, first positioning portion; 123, second connecting member; 1231, second positioning portion; 1232, magnet; 20, projection module; 21, projection unit; 211, reference line light outlet; 212, calibration line light outlet; 30, calibration panel; 311, light outlet; 31, first area; 32, second area; 40, main frame; 41, beam; 213, reference line; 214, calibration line; 200, automobile; 300, calibration pattern. DETAILED DESCRIPTION

[0049] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on another element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0051] See also Figure 1 In one aspect, the embodiment of the present application provides a rotation adjustment device 11, which is applied to a calibration device, and is specifically applied to an automobile calibration device. Exemplarily, the automobile calibration device includes multiple devices with calibration functions, and some calibration devices (targets, calibration patterns, laser levels, etc.) need to perform some turning actions around a specific axis during the calibration process. The rotation adjustment device 11 of the embodiment of the present application is a device that can install any of the above-mentioned partial calibration devices and assist the rotation of the above-mentioned partial calibration devices.

[0052] In some embodiments, the rotation adjustment device 11 includes a base 111, a platform 112, and a driving assembly 113. The platform 112 includes a hinge 1122 and a brake 1123, and the platform 112 is hinged to the base 111 through the hinge 1122. The driving assembly 113 is disposed on the base 111 and connected to the brake 1123. The driving assembly 113 is used to drive the brake 1123 to rotate relative to the base 111 around the hinge axis O of the hinge 1122, so as to drive the platform 112 to rotate.

[0053] The structural principle of the rotation adjustment device 11 of the embodiment of the present application is as follows: the carrier 112 is used to install the connecting member of any of the above-mentioned partial calibration devices, the carrier 112 is hinged to the base 111, and can rotate relative to the base 111 around the hinge axis O, so that the calibration device can be driven to rotate around the hinge axis O. The carrier 112 includes a hinge part 1122 and a brake part 1123, and the carrier 112 is hinged to the base 111 through the hinge part 1122. Further, the brake part 1123 is connected to a driving component 113, and the driving component 113 is installed on the base 111, and can drive the brake part 1123 to rotate relative to the base 111 around the hinge axis O of the hinge part 1122, so that the carrier 112 drives the calibration device to rotate around the hinge axis O.

[0054] It can be understood that the embodiment of the present application provides a rotation adjustment device 11, which installs the calibration device on the carrier 112, and drives the braking part 1123 to rotate around the hinge axis O of the hinge part 1122 relative to the base 111 through the driving component 113, so as to drive the carrier 112 to rotate around the hinge axis O relative to the base 111, thereby driving the calibration device to rotate a specific angle. Compared with the adjustment method of manual placement and repeated installation, it avoids potential sources of errors and is more convenient for the rotation adjustment operation.

[0055] In some embodiments, the base 111 may be fixed on the ground, a wall, or the like. In other embodiments, the base 111 may also be fixed on any supporting structure. For example, the base 111 may be mounted on a bracket.

[0056] Please also read Figure 2 and Figure 3In some embodiments, the carrier 112 further includes a carrier body 1121, a hinged portion 1122 and a brake portion 1123 are respectively located at two ends of the carrier body 1121 in the length direction, and the hinged portion 1122 is a hinge axis. The base 111 includes a hinge hole 1111 and a receiving groove 1112, the hinge hole 1111 is sleeved on the hinged portion 1122, the brake portion 1123 is received in the receiving groove 1112, and can rotate relative to the base 111 around the hinge axis O in the receiving groove 1112. Among them, the driving component 113 is partially located in the receiving groove 1112, and resists the brake portion 1123 to drive the brake portion 1123 to rotate around the hinge axis O in the receiving groove 1112.

[0057] It can be understood that in the embodiment of the present application, the hinge part 1122 and the brake part 1123 are respectively arranged on the two ends of the stage body 1121, so that the rotation angle of the brake part 1123 changes less under the same unit rotation stroke, thereby facilitating more accurate rotation angle adjustment. Further, the receiving groove 1112 of the base 111 receives the brake part 1123 to prevent the brake part 1123 from being affected by the driving force other than the driving component 113, resulting in a change in the rotation angle.

[0058] In some embodiments, the stage body 1121 includes a mounting portion 11211 and a connecting handle 11212. The bottom end surface of the mounting portion 11211 is connected to the hinge portion 1122, and the top end surface of the mounting portion 11211 is a mounting surface for mounting the calibration device. In one embodiment, the mounting portion 11211 is a circular structure, and its central axis coincides with the hinge axis O of the hinge portion 1122, and on the normal projection plane of the hinge axis O, the projection area of ​​the mounting portion 11211 is larger than the projection area of ​​the hinge portion 1122. The two ends of the connecting handle 11212 are respectively connected to the mounting portion 11211 and the braking portion 1123, and the width of the portion of the connecting handle 11212 close to the mounting portion 11211 is larger than the width of the portion close to the braking portion 1123. From the middle of the connecting handle 11212 to the portion close to the braking portion 1123, the width of the connecting handle 11212 gradually decreases until it is the same as the width of the braking portion 1123.

[0059] First, the connection between the bottom end face of the mounting portion 11211 and the hinged portion 1122 ensures the stability of the carrier 112, while the top end face serves as the mounting surface for fixing the calibration device, providing necessary support for the calibration device. Secondly, the circular structure of the mounting portion 11211 and the coincidence of the center axis with the hinged axis of the hinged portion 1122 enhance the overall symmetry and balance, and the mounting portion 11211 will drive the calibration device to rotate more smoothly. In addition, the projected area of ​​the mounting portion 11211 is larger than that of the hinged portion 1122 to better support the calibration device. The design of the connecting handle 11212 gradually reduces its width from the middle to the braking portion 1123, reducing its own weight. In order to avoid a reduction in the angular displacement of the braking part 1123 due to volume interference of the braking part 1123 when the space of the receiving groove 1112 is small, the embodiment of the present application configures a smaller size for the braking part 1123, and at the same time makes the connecting handle 11212 well connected with the braking part 1123 in width, so as to maximize the angular displacement of the braking part 1123 within the smaller space of the receiving groove 1112, thereby obtaining a larger rotation angle range.

[0060] In some embodiments, the rotation adjustment device 11 further includes a spring washer 114, a first rotation washer 115, a second rotation washer 116 and an end cover 117. The spring washer 114 is sleeved on the hinge portion 1122, and the top end surface of the spring washer 114 abuts against the bottom end surface of the carrier body 1121. The first rotation washer 115 is sleeved on the hinge portion 1122, one side end surface of the first rotation washer 115 abuts against the bottom end surface of the spring washer 114, and the other side end surface of the first rotation washer 115 abuts against the top end surface of the base 111. The second rotation washer 116 is coaxially arranged with the hinge axis O, and one side end surface of the second rotation washer 116 abuts against the bottom end surface of the base 111. The top end surface of the end cover 117 is provided with an annular flange 1171 , which is inserted into the second rotating washer 116 . The top end surface of the end cover 117 abuts against the other end surface of the second rotating washer 116 , and the end cover 117 is fixedly connected to the hinge portion 1122 .

[0061] It can be understood that the rotation adjustment device 11 of the embodiment of the present application is fixedly connected by the end cover 117 and the hinge part 1122 to prevent the carrier 112 and the base 111 from being separated from each other during the rotation process. The spring washer 114 is used to disperse the locking pressure between the carrier 112 and the base 111. The first rotating washer 115 is located between the carrier body 1121, the spring washer 114 and the base 111 to avoid end surface friction between the carrier body 1121 and the base 111, and the second rotating washer 116 is located between the base 111 and the end cover 117 to avoid end surface friction between the base 111 and the end cover 117. Among them, the first rotating washer 115 and the second rotating washer 116 are both made of plastic structural parts, such as Teflon (polytetrafluoroethylene), polyoxymethylene and other plastic structural parts with good self-lubricating properties, which are conducive to reducing friction damping during the rotation process. In some embodiments, a threaded hole is provided on the end face of the hinged portion 1122 , and a mounting hole and a screw are provided corresponding to the threaded hole on the end cover 117 . The screw is sequentially passed through the mounting hole and the threaded hole to achieve a fixed connection between the end cover 117 and the hinged portion 1122 .

[0062] In some embodiments, the receiving groove 1112 includes a first limiting wall 1113 and a second limiting wall 1114 that are arranged opposite to each other, and the first limiting wall 1113 is provided with a threaded through hole 11131. The braking portion 1123 is located between the first limiting wall 1113 and the second limiting wall 1114, and the braking portion 1123 includes a first braking surface 11231 facing the threaded through hole 11131 and a second braking surface 11232 facing the second limiting wall 1114.

[0063] The driving assembly 113 includes a brake member 1131 and an elastic member 1132. The brake member 1131 includes a knob 11311 and a threaded rod 11312 threadedly matched with the threaded through hole 11131. The knob 11311 is located outside the base 111. One end of the threaded rod 11312 is inserted into the threaded through hole 11131 and abuts against the first brake surface 11231. The other end of the threaded rod 11312 is connected to the knob 11311. One end of the elastic member 1132 abuts against the second brake surface 11232, and the other end of the elastic member 1132 abuts against the second limiting wall 1114.

[0064] It can be understood that the braking part 1123 includes a first braking surface 11231 and a second braking surface 11232 relative to each other, wherein the first braking surface 11231 is subjected to the thrust of the threaded rod 11312, and the second braking surface 11232 is subjected to the elastic force of the elastic member 1132, and the elastic member 1132 is used to push the braking part 1123 against the end of the threaded rod 11312 when the threaded rod 11312 moves. Therefore, the rotation stroke of the braking part 1123 is adjusted by adjusting the movable stroke of the threaded rod 11312 of the braking member 1131, thereby realizing the adjustment of the rotation angle of the carrier 112, and the adjusted angle can still be stabilized without changing after the adjustment operation is completed.

[0065] In some embodiments, the second limiting wall 1114 is provided with a first groove, the second braking surface 11232 is provided with a second groove, one end of the elastic member 1132 is received in the first groove and presses against the bottom surface of the first groove, and the other end of the elastic member 1132 is received in the second groove and presses against the bottom surface of the second groove.

[0066] In some embodiments, the second limiting wall 1114 is provided with a first recessed groove, the second braking surface 11232 is provided with a second recessed groove, one end of the elastic member 1132 is received in the first recessed groove and abuts against the bottom surface of the first recessed groove, and the other end of the elastic member 1132 is received in the second recessed groove and abuts against the bottom surface of the second recessed groove. The embodiment of the present application realizes the movable guidance of the elastic member 1132 through the above arrangement, so as to prevent the elastic member 1132 from being dislocated and unable to normally abut the actuating portion 1123. Optionally, the elastic member 1132 can be a compression spring.

[0067] See also Figure 4 On the other hand, an embodiment of the present application provides a calibration device 100, including a main frame 40, a projection module 20 and an adjustment module 10. The main frame 40 includes a crossbeam 41. The projection module 20 is used to project a reference line 213 for reference of the calibration pattern placement on the calibration plane. The adjustment module 10 is connected to the crossbeam 41, and the projection module 20 is installed on the adjustment module 10. The adjustment module 10 is used to adjust the state of the reference line 213 by adjusting the posture of the projection module 20. Among them, the adjustment module 10 includes the rotation adjustment device 11 of the above-mentioned embodiment, the projection module 20 is installed on the stage 112, and the rotation adjustment device 11 is used to rotate the projection module 20 to adjust the angle of the reference line 213 on the calibration plane.

[0068] The structural principle of the calibration device 100 of the embodiment of the present application is: the adjustment module 10 installs the projection module 20 by rotating the adjustment device 11, the main frame 40 and its crossbeam 41 support the adjustment module 10 and the projection module 20, the projection module 20 projects the reference line 213 on the calibration plane, and the adjustment module 10 adjusts the posture of the projection module 20 to adjust the state of the reference line 213. For example, the adjustment module 10 adjusts the position of the projection module 20 on the crossbeam 41 to translate the reference line 213 to a specified position on the calibration plane, and rotates the projection module 20 by rotating the adjustment device 11 to rotate the reference line 213 at a specified angle on the calibration plane.

[0069] In some embodiments, the calibration plane is the ground where the vehicle to be calibrated is located. In other embodiments, there are multiple calibration planes, and the adjustment module 10 includes at least two rotation units, the rotation axes of the at least two rotation units intersect in a projection plane, and the reference line 213 can be transferred from one of the calibration planes to another calibration plane by adjusting the posture of the projection module 20. The rotation adjustment device 11 of the above embodiment is one of the rotation units. The posture of the projection module 20 referred to in the embodiment of the present application refers to the position and posture of the projection module 20 in a specified coordinate system, and the posture includes a specified angle of rotation around at least one axis, wherein the rotation adjustment device 11 can adjust the projection module 20 to rotate around one of the axes by a specified angle.

[0070] In the field of automobile calibration, for example, in the AVM (Around View Monitor) calibration process, the AVM pattern is a tool used for the calibration of the vehicle camera system, which helps the vehicle camera system to more accurately capture and understand the surrounding environment. Therefore, it is necessary to place the AVM calibration pattern around the vehicle. However, the commonly used calibration pattern placement method is to use a tape measure and a ground line as a reference line for placement 213. In actual use, it is not only time-consuming and inaccurate, but also easily affects the quality of AVM calibration.

[0071] Please also read Figure 4 and Figure 5, exemplarily, in the actual AVM calibration process of the calibration device 100 of the embodiment of the present application, the car 200 is parked in front of the main frame, the ground where the car 200 is located is the calibration plane, the projection module 20 is in the initial position (indicated by the dotted line), and the reference line 213 is projected on the calibration plane. The operator can control the position of the adjustment module 10 in the length direction of the crossbeam 41 so that the reference line 213 exit point of the projection module 20 is at a specified distance from one side of the car 200, and control the driving component 113 of the rotation adjustment device 11 so that the platform 112 drives the projection module 20 to rotate around the hinge axis, so that the projection module 20 is in the target position (indicated by the solid line), that is, the reference line 213 is located on one side of the car 200 as a whole and aligned with one side of the car 200. After the reference line 213 is arranged, the calibration pattern 300 is placed based on the reference line 213 to perform subsequent calibration operations.

[0072] It can be understood that the calibration device 100 of the embodiment of the present application uses the projection module 20 to project the placement reference line 213 of the calibration pattern, and adjusts it through the adjustment module 10. Compared with the use of a tape measure and bottom marking method to provide the placement reference line 213, the reference line 213 provided by the calibration device 100 of the embodiment of the present application is more accurate and easy to operate and adjust, which is conducive to improving the calibration quality.

[0073] See also Figure 6 In some embodiments, the projection module 20 includes two projection units 21, and the projection unit 21 includes a reference line light outlet 211, and the reference line light outlet 211 is used to project a reference line 213 on the calibration plane. There are two rotation adjustment devices 11, and each projection unit 21 is installed on a corresponding stage 112 of a rotation adjustment device 11, and the rotation adjustment device 11 is used to adjust the reference line 213 of the correspondingly installed projection unit 21 to be parallel to the reference line 213 of another projection unit 21.

[0074] It can be understood that in one of the calibration applications, calibration patterns need to be placed on both sides of the vehicle, and the calibration patterns on both sides need to be parallel to each other. Therefore, the embodiment of the present application provides two projection units 21, and each projection unit 21 is installed on a corresponding rotation adjustment device 11. By adjusting at least one of the two rotation adjustment devices 11, the reference lines 213 projected by each projection unit 21 can be made parallel to each other on the calibration plane.

[0075] Please also read Figures 5 to 8In some embodiments, the projection unit 21 is a laser level, which can project a laser beam on the calibration plane as a placement reference line 213. The projection unit 21 is provided with a threaded hole, and the mounting portion 11211 of the carrier 112 is provided with a screw and a screw mounting hole that cooperate with the threaded hole. During actual installation, the projection unit 21 abuts against the mounting portion 11211, and the threaded hole is positioned and aligned with the screw mounting hole. The screw is sequentially inserted into the screw mounting hole and the threaded hole to fasten the projection unit 21 to the mounting portion 11211 of the carrier 112.

[0076] In some embodiments, the reference lines 213 projected by the two projection units 21 can be judged to be parallel by corresponding measurement methods. For example, multiple perpendicular lines are established for one of the reference lines 213, and the multiple perpendicular lines can intersect with another reference line 213, and corresponding multiple perpendicular line segments are formed between the two reference lines 213, and the sizes of the multiple perpendicular line segments are obtained. When the lengths of the multiple perpendicular line segments are the same value, the two reference lines 213 are judged to be parallel, otherwise, the two reference lines 213 are not parallel.

[0077] In other embodiments, the reference lines 213 projected by the two projection units 21 can be judged to be parallel by auxiliary measurement tools. In one embodiment, the calibration device 100 also includes a calibration panel 30, which is arranged on one of the stage 112 and the projection unit 21. The projection unit 21 also includes a calibration line light outlet 212, which is used to project a calibration line 214. The calibration line 214 projected by any projection unit 21 is perpendicular to the reference line 213. The calibration line 214 of any projection unit 21 can be projected on the calibration panel 30 of the corresponding installed rotation adjustment device 11 and the calibration panel 30 of another rotation adjustment device 11, respectively, and can be moved on the calibration panel 30 of another rotation adjustment device 11 under the adjustment of the corresponding installed rotation adjustment device 11.

[0078] It can be understood that the embodiment of the present application adopts the calibration line 214 projected by the projection unit 21 and the calibration panel 30. Since the calibration line 214 is perpendicular to the reference line 213, when the calibration lines 214 of the two projection units 21 overlap, it is determined that the reference lines 213 of the two projection units 21 are parallel to each other. The setting of the calibration panel 30 is conducive to better determining the position of the calibration line 214 and judging whether the calibration lines 214 overlap.

[0079] In some embodiments, the calibration panel 30 includes a translucent first area 31 and a non-transparent second area 32, the first area 31 and the second area 32 are adjacent to each other in the vertical direction, and a light exit hole 311 is provided on the first area 31, and the light exit hole 311 is directly opposite to the calibration line light exit port 212 of the projection unit 21. The calibration line 214 of any projection unit 21 can be projected onto the first area 31 on the calibration panel 30 of the corresponding installed rotation adjustment device 11, and projected onto the calibration panel 30 of another rotation adjustment device 11 through the light exit hole 311.

[0080] It can be understood that the two projection units 21 are respectively the first projection unit 21 and the second projection unit 21. Taking the first projection unit 21 as an example, its calibration line 214 is projected onto the other calibration panel 30 through the light exit hole 311 of the calibration panel 30 connected to itself or connected by the correspondingly installed rotation adjustment device 11, and the first area 31 of the other calibration panel 30 also displays the calibration line 214 of the second projection unit 21. When the two calibration lines 214 are parallel to each other, by adjusting the corresponding rotation adjustment device 11 of the first projection unit 21, the calibration line 214 of the first projection unit 21 is made to approach the calibration line 214 of the second projection unit 21 on the other calibration panel 30 until they overlap each other, so that the reference line 213 between the first projection unit 21 and the second projection unit 21 is parallel to each other on the calibration plane.

[0081] Furthermore, since the first area 31 is configured to be semi-transparent, part of the light will pass through the first area 31, resulting in that when the two projection units 21 are far apart, the calibration line 214 projected by the projection unit 21 will not be obvious on the first area 31 of the calibration panel 30 that is farther away. Therefore, the embodiment of the present application adopts an opaque second area 32, and is adjacent to the first area 31 in the vertical direction, that is, the calibration line 214 projected by the projection unit 21 can be better displayed on the second area 32 on the calibration panel that is farther away, and can be aligned with the reference line projected by another projection unit 21 on the first area 31 of the calibration panel 30, so as to achieve parallel calibration of the reference line 213.

[0082] See also Figure 4 In some embodiments, the adjustment module 10 further includes a sliding assembly 12 , which is respectively connected to the cross beam 41 and the rotation adjustment device 11 , and the sliding assembly 12 can drive the rotation adjustment device 11 to slide relative to the cross beam 41 in the length direction of the cross beam 41 .

[0083] It can be understood that the sliding assembly 12 is respectively connected to the cross beam 41 and the rotation adjustment device 11 , and can drive the rotation adjustment device 11 to slide relative to the cross beam 41 , thereby achieving position adjustment of the projection module 20 .

[0084] Please also read Figure 6 , Figure 7 and Fig. 9 In some embodiments, the crossbeam 41 is provided with a horizontal sliding track, and the sliding assembly 12 includes a slider 121, a first connecting member 122, and a second connecting member 123. The slider 121 is disposed on the sliding track and can slide relative to the crossbeam 41 in the length direction of the sliding track. The second connecting member 123 is connected to the slider 121, and the first connecting member 122 is connected to the rotation adjustment device 11. The first connecting member 122 is provided with a first positioning portion 1221. The second connecting member 123 is detachably connected to the first connecting member 122, and the second connecting member 123 includes a second positioning portion 1231 used in conjunction with the first positioning portion 1221, and the first positioning portion 1221 and the second positioning portion 1231 are connected in conjunction.

[0085] The slider 121 in the embodiment of the present application can be manually operated to adjust the position on the beam 41, or a motor can be used to cooperate with a control system to drive the slider 121 for adjustment. In addition, the first connector 122 and the second connector 123 are detachably connected to facilitate the removal of the projection module 20. Exemplarily, the first connector 122 and the second connector 123 are both metal parts, and at least one of the first connector 122 and the second connector 123 is provided with a magnet 1232, and the first connector 122 and the second connector 123 are connected by magnetic attraction. Exemplarily, the first connector 122 and the second connector 123 are locked by the matching connection of bolts and nuts to achieve a detachable connection. Among them, the first positioning portion 1221 is at least two positioning pins, and the second positioning portion 1231 is a positioning hole that is matched with the positioning pins. When the first connector 122 and the second connector 123 are connected by magnetic attraction, the two can achieve rapid positioning and rapid installation and removal.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as above, which are not provided in detail for the sake of simplicity. Although the present invention is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A rotation adjustment device, characterized in that: include: Pedestal; A carrier, the carrier comprising a hinge part and a brake part, the carrier being hinged to the base via the hinge part; as well as A driving assembly is disposed on the base and connected to the braking part, and is used to drive the braking part to rotate relative to the base around the hinge axis of the hinge part to drive the carrier to rotate.

2. The rotation adjustment device according to claim 1, characterized in that: The platform further comprises a platform body, the hinge part and the brake part are respectively located at two ends of the platform body in the length direction, and the hinge part is a hinge axis; The base comprises a hinge hole and a receiving groove, the hinge hole is sleeved on the hinge part, the braking part is received in the receiving groove, and can rotate relative to the base around the hinge axis in the receiving groove.

3. The rotation adjustment device according to claim 2, characterized in that: The platform body comprises: A mounting portion, wherein a bottom end surface of the mounting portion is connected to the hinge portion, and a top end surface of the mounting portion is used for mounting a calibration device; and A connecting handle, one end of which is connected to the mounting portion, and the other end of which is connected to the braking portion; The width of the connecting handle near the mounting portion is greater than the width of the connecting handle near the braking portion, and the width of the connecting handle gradually decreases from the middle of the connecting handle to the portion near the braking portion until it becomes the same as the width of the braking portion.

4. The rotation adjustment device according to claim 2, characterized in that: The receiving groove comprises a first limiting wall and a second limiting wall which are arranged opposite to each other, and a threaded through hole is provided on a side of the first limiting wall which faces the second limiting wall; The braking portion is located between the first limiting wall and the second limiting wall, and the braking portion includes a first braking surface facing the threaded through hole and a second braking surface facing the second limiting wall; The drive assembly comprises: a brake member, the brake member comprising a knob and a threaded rod threadably matched with the threaded through hole, the knob being located outside the base, one end of the threaded rod passing through the threaded through hole and abutting against the first brake surface, and the other end of the threaded rod being connected to the knob; and An elastic member, one end of the elastic member abuts against the second braking surface, and the other end of the elastic member abuts against the second limiting wall.

5. A calibration device, characterized in that: include: A main frame, the main frame comprising a crossbeam; A projection module, the projection module is used to project a reference line for placing the calibration pattern on the calibration plane; as well as an adjusting module, the adjusting module being connected to the crossbeam, the projection module being mounted on the adjusting module, and the adjusting module being used to adjust the state of the reference line by adjusting the posture of the projection module; Wherein, the adjustment module comprises the rotation adjustment device as described in any one of claims 1-4, the projection module is mounted on the carrier, and the rotation adjustment device is used to rotate the projection module to adjust the angle of the reference line on the calibration plane.

6. The calibration device according to claim 5, characterized in that: The projection module includes two projection units, each of which includes a reference line light outlet, and the reference line light outlet is used to project the reference line on the calibration plane; There are two rotation adjustment devices, each of the projection units is installed on the carrier of a corresponding rotation adjustment device, and the rotation adjustment device is used to adjust the reference line of the correspondingly installed projection unit to be parallel to the reference line of another projection unit.

7. The calibration device according to claim 6, characterized in that: Also included is a calibration panel, the calibration panel being disposed on one of the stage and the projection unit; The projection unit also includes a calibration line light outlet, which is used to project a calibration line. The calibration line and the reference line projected by any of the projection units are perpendicular to each other. The calibration line of any of the projection units can be projected onto the calibration panel of the correspondingly installed rotation adjustment device and the calibration panel of the other rotation adjustment device respectively, and can be moved on the calibration panel of the other rotation adjustment device under the adjustment of the correspondingly installed rotation adjustment device.

8. The calibration device according to claim 7, characterized in that: The calibration panel includes a translucent first area and a non-transparent second area, the first area and the second area are adjacent to each other in a vertical direction, a light exit hole is provided on the first area, and the light exit hole is directly opposite to the calibration line light exit port of the projection unit; The calibration line of any one of the projection units can be projected onto the first area on the calibration panel of the correspondingly installed rotation adjustment device, and can be projected onto the calibration panel of another rotation adjustment device through the light exit hole.

9. The calibration device according to claim 5, characterized in that: The adjustment module further includes a sliding assembly, which is respectively connected to the crossbeam and the rotation adjustment device. The sliding assembly can drive the rotation adjustment device to slide relative to the crossbeam in the length direction of the crossbeam.

10. The calibration device according to claim 9, characterized in that: The crossbeam is provided with a horizontal sliding track, and the sliding assembly comprises: A slider, the slider is arranged on the sliding track and can slide relative to the crossbeam in the length direction of the sliding track; A first connecting member, the first connecting member is connected to the rotation adjustment device, and the first connecting member includes a first positioning portion; and A second connecting member is connected to the slider, the second connecting member is detachably connected to the first connecting member, the second connecting member includes a second positioning portion used in conjunction with the first positioning portion, and the first positioning portion and the second positioning portion are connected in conjunction.

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