Focusing device

Abstract

The present disclosure provides a focusing device, which relates to the field of camera focusing technology. The focusing device includes a camera mounting assembly, a base assembly, a test plate assembly and a projection assembly. Among them, the camera mounting assembly is spaced apart from the test plate assembly and the projection assembly in the first direction, respectively, and the test plate assembly and the projection assembly are spaced apart along the second direction. The base assembly is slidably connected to the test plate assembly and the camera mounting assembly, respectively, so that the test plate assembly moves along the first direction and the camera mounting assembly moves along the second direction. The projection assembly is fixedly mounted on the base assembly, and the projection assembly includes a projection board and a plumb line extending in a vertical direction. The plumb line is located between the projection board and the camera mounting assembly along the first direction, and the projection of the plumb line along the first direction is located inside the projection of the projection board along the first direction. With such a configuration, the difficulty of focusing a line laser camera can be reduced and the stability of focusing can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of camera focusing, and in particular to a focusing device. Background Art

[0002] At present, line laser cameras include a laser projection module for projecting linear stripes and a camera module for acquiring two-dimensional images. When the laser projection module is working, it can project linear laser stripes onto the detection area, so that the camera module can determine the three-dimensional coordinates of multiple pixel points in the laser stripes, thereby obtaining a point cloud image of the detection area.

[0003] During the assembly process of the line laser camera, after the initial assembly of the line laser camera is completed, the laser projection module in the line laser camera is focused so that the line shape and projection direction of the linear laser projected by the laser projection module meet the requirements.

[0004] Currently, it is difficult to perform focusing operations on laser projection modules, and the focusing stability is poor. Utility Model Content

[0005] The present disclosure provides a focusing device, which can reduce the difficulty of focusing a line laser camera and improve the focusing stability.

[0006] In order to achieve the above-mentioned object, the present disclosure provides a focusing device, which includes a camera mounting assembly for mounting a line laser camera, a base assembly, a verification plate assembly, and a projection assembly;

[0007] The camera mounting assembly is spaced apart from the inspection board assembly and the projection assembly in a first direction, respectively, and the inspection board assembly and the projection assembly are spaced apart in a second direction;

[0008] The base assembly comprises a first side and a second side disposed opposite to each other along a first direction, the camera mounting assembly is close to the first side, and the inspection board assembly and the projection board assembly are both close to the second side;

[0009] The base assembly is slidably connected to the inspection plate assembly and the camera mounting assembly respectively, so that the inspection plate assembly moves along the first direction and the camera mounting assembly moves along the second direction;

[0010] The projection assembly is fixedly mounted on the base assembly, and comprises a projection board and a plumb line extending in a vertical direction, wherein the plumb line is located between the projection board and the camera mounting assembly along the first direction, and a projection of the plumb line along the first direction is located inside a projection of the projection board along the first direction; wherein the first direction, the second direction and the vertical direction are perpendicular to each other.

[0011] In a possible implementation of the above-mentioned focusing device, the projection assembly also includes a connecting member and a plumb line, the first end of the connecting member is fixed to the projection board, the second end of the connecting member is fixedly connected to one end of the plumb line, the other end of the plumb line is fixedly connected to the plumb line, and the plumb line is used to make the plumb line extend along the vertical direction.

[0012] In a possible implementation of the above-mentioned focusing device, the projection assembly further includes a mounting bracket, a first end of the mounting bracket is fixedly connected to the base assembly, and a second end of the mounting bracket is fixedly connected to the projection board.

[0013] In a possible implementation of the above-mentioned focusing device, the base assembly includes a first guide rail member, a second guide rail member and a base;

[0014] The first guide rail member extends along the first direction, the second guide rail member extends along the second direction, the first guide rail member and the second guide rail member are both mounted on the base, the first guide rail member is located between the base and the second guide rail member along the vertical direction and is spaced apart from the second guide rail member;

[0015] The inspection plate assembly is slidably connected to the first guide rail member, and the camera mounting assembly is slidably connected to the second guide rail member.

[0016] In a possible implementation of the above-mentioned focusing device, the inspection plate assembly includes an inspection plate having a preset pattern, a first moving member, and a first locking member;

[0017] The side of the inspection plate having the preset pattern faces the camera mounting assembly;

[0018] The first end of the first moving member is slidably connected to the first guide member, and the second end of the first moving member is fixedly connected to the inspection plate;

[0019] The first locking member is used to lock or release the first moving member and the first guide rail member.

[0020] In a possible implementation of the above-mentioned focusing device, the base assembly further includes two support members, the two support members are spaced apart along the second direction, and opposite ends of the second guide rail member are respectively fixedly connected to the base through the two support members.

[0021] In a possible implementation of the above-mentioned focusing device, the camera mounting assembly includes a second locking member, a second moving member, and a camera mounting member for connecting to a line laser camera;

[0022] The first end of the second movable member is slidably connected to the second guide rail member, and the second end of the second movable member is fixedly connected to the camera mounting member;

[0023] The second locking member is used to lock or release the second moving member and the second guide rail member.

[0024] In a possible implementation of the above-mentioned focusing device, the camera mounting member includes a camera mounting seat and a storage bracket;

[0025] The camera mounting seat is fixedly connected to the second moving member and to the storage bracket, and the camera mounting seat is used to carry the main body of the line laser camera;

[0026] The storage bracket forms a storage space for accommodating the top cover of the line laser camera.

[0027] In a possible implementation of the above-mentioned focusing device, the focusing device further includes a focusing plate assembly mounted on the base assembly, the focusing plate assembly is located between the camera mounting assembly and the projection assembly along the first direction, and is spaced apart from the inspection plate assembly along the second direction;

[0028] The projection of the plumb line along the first direction and the projection of the focus plate of the focus plate assembly along the first direction are spaced apart along the second direction.

[0029] In a possible implementation of the above-mentioned focusing device, the focusing plate assembly includes a focusing plate and a driving device, a first end of the driving device is connected to the focusing plate, and a second end of the driving device is connected to the base assembly, and the driving device is used to move the focusing plate along at least one of the first direction and the second direction.

[0030] The focusing device provided by the present disclosure includes a camera mounting assembly, a base assembly, a test plate assembly and a projection assembly for mounting a line laser camera. The camera mounting assembly is spaced apart from the test plate assembly and the projection assembly in the first direction, respectively, and the test plate assembly and the projection assembly are spaced apart along the second direction. The base assembly includes a first side and a second side arranged opposite to each other along the first direction, the camera mounting assembly is close to the first side, and the test plate assembly and the projection plate assembly are both close to the second side. The base assembly is slidably connected to the test plate assembly and the camera mounting assembly, respectively, so that the test plate assembly moves in the first direction and the camera mounting assembly moves in the second direction. The projection assembly is fixedly mounted on the base assembly, and the projection assembly includes a projection board and a plumb line extending in the vertical direction, the plumb line is located between the projection board and the camera mounting assembly along the first direction, and the projection of the plumb line along the first direction is located inside the projection of the projection board along the first direction.

[0031] First, let the linear laser emitted by the line laser camera pass through the plumb line. At this time, observe the image of the linear laser hitting the projection board to determine whether the linear shape of the linear laser meets the requirements and debug if it does not. Then, let the linear laser hit the inspection board assembly, adjust the spacing between the inspection board assembly and the line laser camera, and determine whether the projection direction of the linear laser changes based on whether the contact position between the linear laser and the inspection board assembly changes, and debug if it changes. In this way, the linear shape and projection direction of the linear laser can be debugged. In addition, the debugging difficulty of the linear laser line shape is small, so that the deviation of the linear laser line shape is small, thereby reducing the difficulty of focusing the laser projection module, and then improving the focusing stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 is a schematic diagram of a three-dimensional structure of a focusing device provided by an embodiment of the present disclosure at a first viewing angle;

[0034] Figure 2 yes Figure 1 A schematic diagram of the stereoscopic structure of the focusing device shown in the second viewing angle;

[0035] Figure 3 yes Figure 1 A schematic three-dimensional structural diagram of a camera mounting component in the focusing device shown.

[0036] Description of reference numerals:

[0037] 100, camera mounting assembly; 110, second locking member; 120, second moving member; 130, camera mounting member; 131, camera mounting seat; 132, storage bracket; 133, main body; 134, support body; 135, storage space;

[0038] 200, base assembly; 210, first guide rail member; 220, second guide rail member; 230, base; 240, support member;

[0039] 300, inspection plate assembly; 310, inspection plate; 320, first moving member; 330, first locking member;

[0040] 400, projection assembly; 410, plumb line; 420, projection board; 430, connector; 440, plumb line; 450, mounting bracket;

[0041] 500, focusing plate assembly; 510, focusing plate; 520, driving device; 521, first driving member; 522, second driving member;

[0042] 600, line laser camera; 610, main body; 620, top cover;

[0043] X, first direction; Y, second direction; Z, vertical direction. DETAILED DESCRIPTION

[0044] As described in the background technology, during the assembly process of the line laser camera, after the initial assembly of the line laser camera is completed, the laser projection module in the line laser camera needs to be focused so that the line shape and projection direction of the linear laser projected by the laser projection module meet the requirements.

[0045] In the related art, after the line laser camera is fixed, the line laser camera emits a linear laser toward the focusing plate, and then the focusing plate is controlled to move relative to the line laser camera. At the same time, the contact position between the linear laser and the focusing plate is observed and debugged so that the line shape and projection direction of the linear laser meet the requirements. However, the line shape deviation of the linear laser seen in this way is large, so that the line shape deviation of the debugged linear laser is large, which increases the difficulty of focusing the laser projection module, and thus the focusing stability is poor.

[0046] Figure 1 is a schematic diagram of a three-dimensional structure of a focusing device provided by an embodiment of the present disclosure at a first viewing angle, Figure 2 yes Figure 1 The focusing device shown is a schematic diagram of a three-dimensional structure at a second viewing angle.

[0047] In view of this, the present disclosure provides a focusing device, see Figure 1 and Figure 2 As shown, the focusing device includes a camera mounting assembly 100 for mounting a line laser camera 600 , a base assembly 200 , a verification board assembly 300 , and a projection assembly 400 .

[0048] The camera mounting assembly 100 is spaced apart from the inspection board assembly 300 and the projection assembly 400 in the first direction X, respectively. The inspection board assembly 300 and the projection assembly 400 are spaced apart in the second direction Y. The base assembly 200 includes a first side and a second side that are oppositely disposed in the first direction X. The camera mounting assembly 100 is close to the first side, and the inspection board assembly 300 and the projection board 420 assembly are both close to the second side.

[0049] The base assembly 200 is slidably connected to the inspection plate assembly 300 and the camera mounting assembly 100, respectively, so that the inspection plate assembly 300 moves along the first direction X, and the camera mounting assembly 100 moves along the second direction Y. Thus, the line laser camera 600 can be respectively opposite to the inspection plate assembly 300 and the projection assembly 400 along the first direction X, and then the linear laser emitted by the line laser camera 600 can be irradiated to the inspection plate assembly 300 and the projection assembly 400 respectively. In addition, the distance between the inspection plate assembly 300 and the camera mounting assembly 100 in the first direction X is variable.

[0050] The projection assembly 400 is fixedly mounted on the base assembly 200, and includes a projection plate 420 and a plumb line 410 extending along a vertical direction Z. The plumb line 410 is located between the projection plate 420 and the camera mounting assembly 100 along a first direction X, and a projection of the plumb line 410 along the first direction X is located inside a projection of the projection plate 420 along the first direction X. The first direction X, the second direction Y, and the vertical direction Z are perpendicular to each other.

[0051] After the line laser camera 600 is installed on the camera mounting assembly 100, the camera mounting assembly 100 drives the line laser camera 600 to move so that the line laser camera 600 is opposite to the projection assembly 400, so that the linear laser emitted by the line laser camera 600 passes through the plumb line 410 and irradiates the projection plate 420. At this time, the laser projection module of the line laser camera 600 is debugged by penetrating the image on the projection plate 420 so that the line shape of the linear laser meets the requirements.

[0052] However, the camera mounting assembly 100 drives the line laser camera 600 to move, so that the line laser camera 600 is opposite to the inspection board assembly 300, so that the linear laser emitted by the line laser camera 600 irradiates the inspection board assembly 300. The inspection board assembly 300 is controlled to move along the first direction X, so that the distance between the line laser camera 600 and the inspection board assembly 300 changes. At this time, by observing the contact position of the linear laser with the inspection board assembly 300 and adjusting the laser projection module, the projection direction of the linear laser meets the requirements.

[0053] Therefore, by dividing the line type and projection direction of the linear laser into two processes for debugging respectively, the difficulty of debugging can be reduced and the stability of focusing can be improved. In addition, using the plumb line 410 and the projection plate 420 to debug the line type of the linear laser can reduce the difficulty of line type debugging, so that the deviation of the line type of the linear laser is reduced, thereby reducing the difficulty of focusing operation on the laser projection module, and further improving the stability of focusing.

[0054] The line laser camera 600 includes a main body 610 and a top cover 620. The main body includes a housing and components such as a laser projection module, a lens, and a camera module disposed in the housing. During the focusing process, the main body 610 needs to be separated from the top cover 620 so as to operate the laser projection module, the lens, or the camera module to achieve the focusing operation.

[0055] In some possible implementations, see Figure 1 As shown, the projection assembly 400 may further include a connector 430 and a plumb line 440. The first end of the connector 430 is fixed to the projection board 420, and the second end of the connector 430 is fixedly connected to one end of the plumb line 410. The other end of the plumb line 410 is fixedly connected to the plumb line 440, and the plumb line 440 is used to extend the plumb line 410 along the vertical direction Z.

[0056] In this way, the plumb line 410 is kept straight under the action of gravity by the plumb line 440, that is, the extension direction of the plumb line 410 is parallel to the vertical direction Z. In addition, the connecting member 430 connects the plumb line 410 with the projection board 420 on the one hand, and sets the plumb line 410 and the projection board 420 at a distance on the other hand, ensuring that the plumb line 410 is kept straight under the action of the plumb line 440.

[0057] In some possible implementations, see Figure 1 As shown, the projection assembly 400 may further include a mounting bracket 450, a first end of the mounting bracket 450 is fixedly connected to the base assembly 200, and a second end of the mounting bracket 450 is fixedly connected to the projection board 420. In this way, the projection assembly 400 may be mounted on the base assembly 200.

[0058] For example, Figure 1 As shown, the mounting bracket 450 can be a plate structure with an L-shaped cross-section, one end of the mounting bracket 450 is connected to the base assembly 200, and the other end of the mounting bracket 450 is connected to the projection board 420, so that the projection board 420 and the base assembly 200 are perpendicular to the first direction X and the second direction Y, thereby facilitating the penetration of the image on the projection board 420.

[0059] For example, see Figure 1 and Figure 2As shown, the base assembly 200 includes a first rail member 210, a second rail member 220 and a base 230. The first rail member 210 extends along a first direction X, the second rail member 220 extends along a second direction Y, the first rail member 210 and the second rail member 220 are both mounted on the base 230, and the first rail member 210 is located between the base 230 and the second rail member 220 along a vertical direction Z and is spaced apart from the second rail member 220. The inspection plate assembly 300 is slidably connected to the first rail member 210, and the camera mounting assembly 100 is slidably connected to the second rail member 220. In this way, the inspection plate assembly 300 can move along the first direction X, and the camera mounting assembly 100 can move along the second direction Y, so that the line type and projection direction of the linear laser can be adjusted.

[0060] For example, see Figure 1 and Figure 2 As shown, the inspection plate assembly 300 may include an inspection plate 310 having a preset pattern (not shown in the figure), a first moving member 320 and a first locking member 330. The side of the inspection plate 310 having the preset pattern faces the camera mounting assembly 100. The first end of the first moving member 320 is slidably connected to the first guide member 210, the second end of the first moving member 320 is fixedly connected to the inspection plate 310, and the first locking member 330 is used to lock or release the first moving member 320 and the first guide member 210.

[0061] During the movement of the inspection plate assembly 300, if the contact position between the preset pattern and the linear laser does not change, the projection direction of the linear laser meets the requirements. If the contact position between the preset pattern and the linear laser changes, the projection direction of the linear laser needs to be adjusted. By setting the preset pattern on the inspection plate assembly 300, the difficulty of judging whether the projection direction of the linear laser meets the requirements can be reduced, thereby reducing the difficulty and deviation of debugging, and then improving the stability of focusing.

[0062] For example, it is possible to determine whether the contact position between the linear laser and the preset pattern has changed by using an image captured by a camera module in the line laser camera 600 .

[0063] The first moving member 320 and the first guide member 210 are locked by the first locking member 330 , so that the positional relationship between the inspection plate 310 and the line laser camera 600 remains unchanged.

[0064] Exemplarily, the first movable member 320 includes a first slide groove, and a portion of the first guide rail member 210 is disposed inside the first slide groove and movably cooperates with the inner wall of the first slide groove to achieve a sliding connection between the first guide rail member 210 and the first movable member 320 .

[0065] Exemplarily, the first movable member 320 includes a first through hole connected to the interior of the first slide groove, and the first locking member 330 is arranged inside the first through hole. The first locking member 330 is used to move axially along the first through hole, so that the first locking member 330 abuts against or separates from the first guide rail member 210, thereby locking or releasing the first guide rail member 210 and the first movable member 320.

[0066] In some possible implementations, see Figure 1 As shown, the base assembly 200 may further include two support members 240, which are spaced apart along the second direction Y, and opposite ends of the second guide rail member 220 are respectively fixedly connected to the base 230 through the two support members 240. In this way, the line laser camera 600 is spaced apart from the base 230 in the vertical direction Z, ensuring that the inspection plate 310 and the projection plate 420 cooperate with the linear laser.

[0067] For example, see Figure 1 As shown, the camera mounting assembly 100 may further include a second locking member 110, a second moving member 120, and a camera mounting member 130 for connecting to the line laser camera 600. The first end of the second moving member 120 is slidably connected to the second guide member 220, and the second end of the second moving member 120 is fixedly connected to the camera mounting member 130. The second locking member 110 is used to lock or release the second moving member 120 and the second guide member 220.

[0068] In this way, after the position of the line laser camera 600 is adjusted to the preset position, the second moving member 120 and the second guide member 220 are locked by the second locking member 110, so that the position of the line laser camera 600 remains unchanged.

[0069] Exemplarily, the second movable member 120 includes a second slide groove, and a portion of the second guide rail member 220 is disposed inside the second slide groove and movably cooperates with the inner wall of the second slide groove to achieve a sliding connection between the second guide rail member 220 and the second movable member 120 .

[0070] Exemplarily, the second movable member 120 includes a second through hole connected to the interior of the second slide groove, and the second locking member 110 is arranged inside the second through hole. The second locking member 110 is used to move axially along the second through hole, so that the second locking member 110 abuts or separates from the second guide rail member 220, thereby locking or releasing the second guide rail member 220 and the second movable member 120.

[0071] Figure 3 yes Figure 1 A schematic three-dimensional structural diagram of a camera mounting component in the focusing device shown.

[0072] In some possible implementations, see Figure 1 and Figure 3As shown, the camera mounting member 130 may include a camera mounting seat 131 and a storage bracket 132. The camera mounting seat 131 is fixedly connected to the second moving member 120 and to the storage bracket 132, and the camera mounting seat 131 is used to carry the main body 133 of the line laser camera 600. The storage bracket 132 is formed with a storage space 135 for accommodating the top cover 620 of the line laser camera 600.

[0073] During the focusing process, the top cover 620 of the line laser camera 600 needs to be removed to expose the interior of the line laser camera 600, so as to adjust the components of the laser projection module so that the line shape and projection direction of the linear laser meet the requirements. Therefore, by placing the top cover 620 in the storage space 135, the top cover 620 can be prevented from being lost.

[0074] Exemplarily, the camera mounting seat 131 has a camera mounting groove, which is used to accommodate the main body 133 of the line laser camera 600. At this time, the shape of the camera mounting groove matches the contour of the main body 133.

[0075] For example, see Figure 3 As shown, the storage bracket 132 may include a main body 133 and two branch groups arranged at intervals, each branch group includes two branch parts 134 arranged at intervals, and the four branch parts 134 and the main body 133 form a storage space 135.

[0076] In some possible implementations, see Figure 1 and Figure 2 As shown, the focusing device may further include a focusing plate assembly 500 mounted on the base assembly 200, the focusing plate assembly 500 being located between the camera mounting assembly 100 and the projection assembly 400 along the first direction X, and being spaced apart from the inspection plate assembly 300 along the second direction Y. The projection of the plumb line 410 along the first direction X and the projection of the focusing plate 510 of the focusing plate assembly 500 along the first direction X are spaced apart along the second direction Y.

[0077] During the focusing process, after the linear shape and projection direction of the linear laser are adjusted, the position of the line laser camera 600 is moved so that the linear laser coincides with the surface of the focusing plate 510. At this time, the camera module of the line laser camera 600 captures the image on the focusing plate 510, and the position of the camera module and / or the position of the lens are adjusted according to the captured image to make the image clear, thereby achieving the focusing of the camera module.

[0078] It can be understood that there is an angle between the optical axis direction of the camera module in the line laser camera 600 and the laser projection direction, that is, the laser projection module and the camera module are arranged at an angle.

[0079] Exemplarily, a focus mark (not shown in the figure) is provided on the surface of the focus plate 510, and the focus mark is used to contact with the linear laser. According to the contact state of the focus mark and the linear laser, it can be determined whether the image is clear.

[0080] Exemplarily, the focus mark may be a black rectangular area, and there are multiple focus marks arranged in a two-dimensional array.

[0081] For example, see Figure 1 As shown, the focus plate assembly 500 may include a focus plate 510 and a driving device 520, wherein a first end of the driving device 520 is connected to the focus plate 510, and a second end of the driving device 520 is connected to the base assembly 200, and the driving device 520 is used to move the focus plate 510 along at least one of a first direction X and a second direction Y. By controlling the focus plate 510 to move along the first direction X and / or the second direction Y, the overlap between the focus plate 510 and the linear laser is improved, and the accuracy of the debugging can be improved.

[0082] For example, see Figure 1 As shown, the driving device 520 may include a first driving member 521 and a second driving member 522. The first driving member 521 is fixedly mounted on the base assembly 200, a first end of the second driving member 522 is fixedly connected to the first driving member 521, and a second end of the second driving member 522 is fixedly connected to the focusing plate 510. The first driving member 521 is used to drive the second driving member 522 to move along the first direction X, so that the focusing plate 510 moves along the first direction X. The second driving member 522 is used to drive the focusing plate 510 to move along the second direction Y.

[0083] There is no limitation on the specific structure of the first driving member 521. For example, the first driving member 521 may be an optical adjustment frame.

[0084] There is no limitation on the specific structure of the second driving member 522. For example, the second driving member 522 may be an optical adjustment frame.

[0085] The parallelism, perpendicularity, numerical values ​​and numerical ranges involved in the embodiments of the present application are approximate values. Due to the influence of the manufacturing process, there may be a certain range of errors, which can be considered negligible by those skilled in the art.

[0086] In the description of the embodiments of the present disclosure, it should be understood that the terms (if any) "top", "bottom", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present disclosure.

[0087] In the description of the embodiments of the present disclosure, it is to be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0088] Unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected or indirectly connected through an intermediate medium, which can enable the internal connectivity of two elements or the interaction relationship between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A focusing device, characterized in that: It includes a camera mounting assembly, a base assembly, a test plate assembly and a projection assembly for mounting a line laser camera; The camera mounting assembly is spaced apart from the inspection board assembly and the projection assembly in a first direction, respectively, and the inspection board assembly and the projection assembly are spaced apart in a second direction; The base assembly comprises a first side and a second side disposed opposite to each other along a first direction, the camera mounting assembly is close to the first side, and the inspection board assembly and the projection assembly are close to the second side; The base assembly is slidably connected to the inspection plate assembly and the camera mounting assembly respectively, so that the inspection plate assembly moves along the first direction and the camera mounting assembly moves along the second direction; The projection assembly is fixedly mounted on the base assembly, and comprises a projection board and a plumb line extending in a vertical direction, wherein the plumb line is located between the projection board and the camera mounting assembly along the first direction, and a projection of the plumb line along the first direction is located inside a projection of the projection board along the first direction; wherein the first direction, the second direction and the vertical direction are perpendicular to each other.

2. The focusing device according to claim 1, characterized in that: The projection assembly also includes a connecting member and a plumb line. The first end of the connecting member is fixed to the projection board, the second end of the connecting member is fixedly connected to one end of the plumb line, and the other end of the plumb line is fixedly connected to the plumb line. The plumb line is used to extend the plumb line along the vertical direction.

3. The focusing device according to claim 1, characterized in that: The projection assembly further comprises a mounting bracket, a first end of the mounting bracket is fixedly connected to the base assembly, and a second end of the mounting bracket is fixedly connected to the projection board.

4. The focusing device according to any one of claims 1 to 3, characterized in that: The base assembly includes a first guide rail member, a second guide rail member and a base; The first guide rail member extends along the first direction, the second guide rail member extends along the second direction, the first guide rail member and the second guide rail member are both mounted on the base, the first guide rail member is located between the base and the second guide rail member along the vertical direction and is spaced apart from the second guide rail member; The inspection plate assembly is slidably connected to the first guide rail member, and the camera mounting assembly is slidably connected to the second guide rail member.

5. The focusing device according to claim 4, characterized in that: The inspection plate assembly includes an inspection plate having a preset pattern, a first moving member and a first locking member; The side of the inspection plate having the preset pattern faces the camera mounting assembly; The first end of the first moving member is slidably connected to the first guide member, and the second end of the first moving member is fixedly connected to the inspection plate; The first locking member is used to lock or release the first moving member and the first guide rail member.

6. The focusing device according to claim 4, characterized in that: The base assembly further includes two support members, which are spaced apart along the second direction, and opposite ends of the second guide rail member are respectively fixedly connected to the base through the two support members.

7. The focusing device according to claim 4, characterized in that: The camera mounting assembly includes a second locking member, a second moving member, and a camera mounting member for connecting to a line laser camera; The first end of the second movable member is slidably connected to the second guide rail member, and the second end of the second movable member is fixedly connected to the camera mounting member; The second locking member is used to lock or release the second moving member and the second guide rail member.

8. The focusing device according to claim 7, characterized in that: The camera mounting piece includes a camera mounting seat and a storage bracket; The camera mounting seat is fixedly connected to the second moving member and to the storage bracket, and the camera mounting seat is used to carry the main body of the line laser camera; The storage bracket forms a storage space for accommodating the top cover of the line laser camera.

9. The focusing device according to any one of claims 1 to 3, characterized in that: The focusing device further comprises a focusing plate assembly mounted on the base assembly, the focusing plate assembly being located between the camera mounting assembly and the projection assembly along the first direction and spaced apart from the inspection plate assembly along the second direction; The projection of the plumb line along the first direction and the projection of the focus plate of the focus plate assembly along the first direction are spaced apart along the second direction.

10. The focusing device according to claim 9, characterized in that: The focusing plate assembly includes a focusing plate and a driving device, wherein a first end of the driving device is connected to the focusing plate, and a second end of the driving device is connected to the base assembly, and the driving device is used to move the focusing plate along at least one of the first direction and the second direction.

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