3D camera lens and / or laser protection device

Abstract

The invention relates to the technical field of 3D cameras, and particularly discloses a 3D camera lens and / or laser protection device which comprises a driving mechanism and a cover plate, the driving mechanism is integrally located in a shell of a 3D camera, the cover plate is located outside the shell, the cover plate is connected to the driving mechanism, and the cover plate moves under the action of the driving mechanism to achieve automatic opening and closing. The driving mechanism in the protection device is arranged in the 3D camera shell, and when the 3D camera is not used or does not need to be used, the cover plate is attached to the bottom of the 3D camera, so that the protection device is generally located in the 3D camera shell and does not protrude, and the whole 3D camera is very attractive.

Description

Technical Field

[0001] This application relates to the technical field of 3D cameras, and particularly to a protection device for a 3D camera lens and / or a laser. Background Art

[0002] 3D cameras are usually used in the field of industrial robots as machine vision, including industries with poor working environments such as welding, grinding, and spraying. For example, in welding, spatter, smoke, etc. are easily generated. To avoid damaging or contaminating the lens and / or laser of the 3D camera and its corresponding filter, which may affect the quality of three-dimensional imaging, a protection device is generally added externally to the 3D camera housing. When the 3D camera is not needed, the protection device is in a closed state to protect the 3D camera lens and / or laser and its corresponding filter from being damaged or contaminated. When the 3D camera needs to be used, the protection device automatically opens to enable the 3D camera to work properly. For example, in the document with the publication number CN216622935U, a "swing-opening and closing anti-spatter protection device for a three-dimensional camera" is disclosed. However, all the structures of the protection device A are arranged outside the 3D camera housing, looking like a protrusion (refer to A in the appendix Figure 14 ), which has the problem of being less aesthetically pleasing. Summary of the Invention

[0003] Aiming at the above problems, the purpose of this application is to provide a protection device for a 3D camera lens and / or a laser to solve the above problems.

[0004] To achieve the above purpose, the following technical solution is adopted in this application: A protection device for a 3D camera lens and / or a laser, including a driving mechanism and a cover plate. The driving mechanism is entirely located inside the housing of the 3D camera, and the cover plate is located outside the housing. The cover plate is connected to the driving mechanism and moves under the action of the driving mechanism.

[0005] Optionally, the 3D camera acquires image information through the bottom of the housing. When the 3D camera is not in use or not needed, the cover plate fits against the bottom of the housing. When the 3D camera needs to be used, the driving mechanism drives the cover plate to move in a direction away from the bottom of the housing.

[0006] Optionally, the driving mechanism includes a driving member and a connecting rod assembly. One end of the first cover plate in the cover plate or the cover plate is fixedly connected to one end of the first connecting rod in the connecting rod assembly, and the output end of the driving member is fixedly connected to one end of the second connecting rod in the connecting rod assembly.

[0007] Optionally, the link assembly further includes a third link. The other end of the second link is rotatably connected to one end of the third link, and the other end of the third link is rotatably connected to the other end of the first link.

[0008] Optionally, a first through hole is provided at the bottom of the housing. One end of the first link passes through the first through hole and is fixedly connected to the cover plate or the first cover plate in the cover plate.

[0009] Advantageous effects: In the present application, the drive mechanism in the protection device is arranged inside the housing of the 3D camera. When the 3D camera is not in use or not needed, the cover plate fits against the bottom of the 3D camera, so that the protection device is generally located inside the housing of the 3D camera. Compared with the 3D cameras in the prior art (refer to Figure 14 ), it does not protrude, making the overall 3D camera very beautiful (refer to Figures 6 to 8 , Figures 12 to 13 ). Description of the Drawings

[0010] Figure 1 FIG. 18 is a schematic structural diagram of the interior of a 3D camera with the cover plate open according to an embodiment of the present application;

[0011] Figure 2 FIG. 22 is a schematic structural diagram of the protection device with the cover plate open according to an embodiment of the present application;

[0012] Figure 3 FIG. 26 is a schematic structural diagram of the interior of a 3D camera with the cover plate closed according to an embodiment of the present application;

[0013] Figure 4 FIG. 30 is a schematic structural diagram of the protection device with the cover plate closed according to an embodiment of the present application;

[0014] Figure 5 FIG. 34 is a schematic partial structural diagram of the interior of a 3D camera according to an embodiment of the present application;

[0015] Figure 6 FIG. 38 is a schematic structural diagram of the overall 3D camera with the cover plate closed according to an embodiment of the present application;

[0016] Figure 7 FIG. 42 is Figure 6 a schematic structural diagram from another perspective;

[0017] Figure 8 FIG. 48 is a schematic structural diagram of the overall 3D camera with the cover plate open according to an embodiment of the present application;

[0018] Figure 9It is a schematic structural diagram of the inside of a 3D camera in the closed state of the cover plate provided by another embodiment of the present application;

[0019] Figure 10 It is a schematic structural diagram of the inside of a 3D camera in the open state of the cover plate provided by another embodiment of the present application;

[0020] Figure 11 It is a partial schematic structural diagram of the inside of a 3D camera in the open state of the cover plate provided by another embodiment of the present application;

[0021] Figure 12 It is a schematic structural diagram of the whole 3D camera in the closed state of the cover plate provided by another embodiment of the present application;

[0022] Figure 13 It is a schematic structural diagram of the whole 3D camera in the open state of the cover plate provided by another embodiment of the present application;

[0023] Figure 14 It is a schematic structural diagram of a swing-opening and closing anti-splash protection device of a three-dimensional camera recorded in the document with the publication number CN216622935U. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0025] Considering the problems existing in the prior art, the present application provides a 3D camera lens and / or laser protection device to solve this problem, which will be specifically described below with reference to the accompanying drawings.

[0026] Refer to Figure 1 、 Figure 9, in addition to the protection device provided by the present application, the 3D camera 100 further includes a housing 10, a camera 20 (also called a lens), a laser 30 or a galvanometer scanning system. The galvanometer scanning system includes a laser and a galvanometer, and the line laser scanning is completed by the rotation of the galvanometer. In Embodiment 1, it is a monocular camera (with only one lens, adopting a three-dimensional imaging method of line laser scanning, and at this time, the camera needs to be moved). In Embodiment 2, it is a binocular camera (with two lenses, and the laser or the galvanometer scanning system is located between the two lenses. If the three-dimensional imaging method of galvanometer scanning is adopted, at this time, only the galvanometer needs to be driven to rotate, and there is no need to move the camera). The camera 20, the laser 30 or the galvanometer scanning system are all installed inside the housing 10. Several filters are installed at the bottom of the housing 10 to protect optical devices such as the lens, the laser or the galvanometer scanning system. Specifically, a first filter 21 and a second filter 31 are provided at the bottom of the housing 10. The camera 20 takes pictures and / or shoots the target object through the corresponding first filter 21. The laser 30 or the galvanometer scanning system emits the laser onto the target object through the corresponding second filter 31. If it is a binocular camera, then there are two first filters 21. Therefore, the 3D camera 100 completes the acquisition of three-dimensional image information through the bottom of the housing 10. So when the bottom of the housing 10 is damaged or contaminated, the 3D camera 100 may not be able to work properly, and may even further damage optical devices such as the lens, the laser or the galvanometer scanning system. Therefore, the part that needs to be protected in the 3D camera 100 is the bottom of its housing 10.

[0027] Referring to Figures 1 to 13 , a protection device provided by the present application includes a driving mechanism 40 and a cover plate 50. The driving mechanism 40 is integrally located inside the housing 10 of the 3D camera 100. The cover plate 50 is located outside the bottom of the housing 10. The cover plate 50 is connected to the driving mechanism 40. The cover plate 50 rotates under the action of the driving mechanism 40 to achieve automatic opening and closing. Specifically:

[0028] When the 3D camera 100 is not in use or not needed, the cover plate 50 fits on the outside of the bottom of the housing 10. At this time, the cover plate 50 is in the closed state, playing a role in protecting the bottom of the housing 10 and further protecting the optical devices of the 3D camera 100;

[0029] When it is necessary to use the 3D camera 100 for shooting and / or scanning, the driving mechanism 40 drives the cover plate 50 to rotate, so that the cover plate 50 moves away from the bottom of the housing 10. At this time, the cover plate 50 is in the open state, so that it will not block the lens, the laser or the galvanometer scanning system, and enables the 3D camera 100 to normally complete the acquisition of three-dimensional image information;

[0030] After the 3D camera 100 has been used up, the driving mechanism 40 drives the cover plate 50 to rotate in the opposite direction, so that the cover plate 50 returns to the closed state again. For example, during a welding operation, when the three-dimensional image information has been collected and welding is required, the driving mechanism 40 will automatically drive the cover plate 50 to turn back. At this time, the cover plate 50 is again attached to the outside of the bottom of the housing 10, thus preventing foreign matters such as spatter, soot, and dust during welding from contaminating the filter, and even damaging optical devices such as the lens, laser, or laser galvanometer system of the 3D camera 100, affecting the quality of three-dimensional imaging, and even causing the 3D camera 100 to malfunction.

[0031] In this application, except that the cover plate 50 needs to protect the bottom of the camera on the outside of the camera housing 10 from being contaminated or damaged, the rest of the components are all arranged inside the camera housing 10 as a whole. When the 3D camera 100 is not in use or not needed, the cover plate 50 also fits on the bottom of the housing 10 of the 3D camera 100. As Figures 6 to 8 、 Figures 12 to 13 shown, the 3D camera 100 looks very beautiful as a whole, without protruding, and also makes full use of the space inside the camera housing 10, without taking up too much extra space as in the prior art, making the entire structure of the 3D camera 100 more compact, small, and tidy, and more space-saving.

[0032] Furthermore, when the bottom of the housing 10 is flat, the cover plate 50 is a whole. Generally speaking, the cover plate 50 is a large single board; when the bottom of the housing 10 is not flat, the cover plate 50 includes a first cover plate 51 and a second cover plate 52. Therefore, the shape and number of the cover plates can change accordingly according to the different bottoms of the camera housing. Specifically, in Embodiment 2, since it is a binocular camera, according to the binocular three-dimensional imaging principle, the bottom of its housing 10 is flat, so a single cover plate (a large board) can better cover and fit on the bottom of the housing 10; in Embodiment 1, since it is a monocular line laser camera, according to its three-dimensional imaging principle, there is a certain angle between the camera lens and the laser, so the bottom of its housing 10 is not flat but has a certain curvature. Therefore, it is impossible to use a large single board to better fit on the bottom of the housing 10 at this time. Therefore, it is necessary to use the first cover plate 51 to fit on the first filter 21 and the second cover plate 52 to fit on the second filter 31, and the automatic opening and closing of these two cover plates can achieve better protection of the bottom of the camera housing 10. Of course, in other embodiments, according to the specific situation of the components to be protected, only one cover plate can be set, such as the first cover plate 51 or the second cover plate 52.

[0033] Further, the driving mechanism 40 includes a driving member 41 and a connecting rod assembly 42. The driving member 41 is preferably a motor (such as a servo motor), a cylinder, etc. Hereinafter, the motor is taken as an example. The connecting rod assembly 42 includes a first connecting rod 421, a second connecting rod 422, and a third connecting rod 423.

[0034] In Embodiment 1 (monocular camera):

[0035] Referring to Figures 1 to 4 , the cover plate 50 includes a first cover plate 51 and a second cover plate 52. The first cover plate 51 is used to protect the lens of the monocular camera and its corresponding filter, and the second cover plate 52 is used to protect the laser of the monocular camera and its corresponding filter. Correspondingly, the connecting rod assembly 42 further includes a fourth connecting rod 424 and a fifth connecting rod 425. A first through hole 101 is provided at the bottom of the camera housing 10. One end of the first connecting rod 421 is fixedly connected to one side of the first cover plate 51. Specifically, the first connecting rod 421 passes through the first through hole 101 and is fixedly connected to the first cover plate 51 outside the bottom of the camera housing 10. One end of the second connecting rod 422 is fixedly connected to the output end of the motor. The other end of the second connecting rod 422 is rotatably connected to one end of the third connecting rod 423, and the other end of the third connecting rod 423 is rotatably connected to the other end of the first connecting rod 421. A second through hole 102 is further provided at the bottom of the camera housing 10. One end of the fourth connecting rod 424 is fixedly connected to one side of the second cover plate 52. The fourth connecting rod 424 passes through the second through hole 102 and is fixedly connected to the second cover plate 52 outside the bottom of the camera housing 10. Preferably, both the first connecting rod 421 and the fourth connecting rod 424 are bent. The other end of the second connecting rod 422 is respectively rotatably connected to one end of the third connecting rod 423 and the fifth connecting rod 425. The other end of the third connecting rod 423 is rotatably connected to the other end of the first connecting rod 421, and the other end of the fifth connecting rod 425 is rotatably connected to the other end of the fourth connecting rod 424. In this way, the motor can drive these connecting rods to rotate, and the first cover plate 51 can be automatically opened and closed driven by the motor, the first connecting rod 421, the second connecting rod 422, and the third connecting rod 423. The second cover plate 52 can be automatically opened and closed driven by the motor, the second connecting rod 422, the fourth connecting rod 424, and the fifth connecting rod 425, playing a role in protecting the bottom of the camera. In this application, the connection method between the connecting rods can adopt common connection methods in machinery such as shafts and bearings, which will not be elaborated here.

[0036] Optionally, referring to Figure 5, inside the camera housing 10, there are several side plates 70 and fixed mounting blocks 80 for the installation and fixation of the driving mechanism 40. The side plates 70 are fixed inside the camera housing 10, and the side plates 70 and the housing 10 enclose a relatively closed accommodation space for placing the driving mechanism 40. Preferably, there are four fixed mounting blocks 80, two of which are fixed on the side plates 70 for the installation and fixation of the motor, and the other two are fixed on the inner side of the bottom of the housing 10 for the installation and fixation of the first link 421 and the fourth link 424. In this way, the cover plate will not move during the opening and closing rotation process, making its opening and closing movement more stable.

[0037] In Embodiment 2 (binocular camera):

[0038] Refer to Figures 9 to 13 , at the bottom of the camera housing 10, there is a first through hole 101. One end of the first link 421 is fixedly connected to one side of the cover plate 50. Specifically, the first link 421 passes through the first through hole 101 and is fixedly connected to the cover plate 50 outside the bottom of the camera housing 10. One end of the second link 422 is fixedly connected to the output end of the motor, and the other end of the second link 422 is rotatably connected to one end of the third link 423. The other end of the third link 423 is rotatably connected to the other end of the first link 421.

[0039] When the 3D camera 100 needs to be used, the motor drives the second link 422 to rotate. At this time, the third link 423 also rotates accordingly, thereby driving the first link 421 to rotate. Also, since one end of the first link 421 is fixed with the cover plate 50, the cover plate 50 also rotates. At this time, the cover plate 50 is in an open state, enabling the 3D camera 100 to work properly. After the 3D camera 100 is used up, the motor drives the second link 422 to rotate in the opposite direction, thereby driving the cover plate 50 to rotate in the opposite direction as well, so that the cover plate 50 can fit with the bottom of the camera housing 10 to achieve the closing of the cover plate. In Embodiment 2, since the 3D camera 100 is a binocular camera, the camera includes two lenses and a laser (or a laser galvanometer system). In order to protect these important optical devices and their corresponding filter plates, the corresponding cover plate 50 is a whole large board. The bottom of the camera housing 10 is shaped like a rectangle, and the first through hole 101 is located near the long side at the bottom. The rotation axis of the cover plate 50 during rotation is parallel to the aforementioned long side. The cover plate 50 is driven to open and close automatically by driving the link by the motor, that is, the overall protection of the bottom of the binocular camera is achieved through the automatic opening and closing of a whole large board. The installation and fixation of the driving mechanism 40 in Embodiment 2 are similar to those in Embodiment 1 and will not be elaborated here.

[0040] Furthermore, on the outer side of the bottom of the housing 10 of the 3D camera 100, there are grooves, and corresponding grooves are also provided on the cover plate. Magnets are placed in these grooves. Specifically, refer to Figure 1, in Embodiment 1, a first groove 61 is formed on the outer side of the bottom of the housing 10, and a second groove 62 is formed on the first cover plate 51. Magnets (preferably soft magnets attracting each other, not shown in the figure) are placed in the two grooves. When the 3D camera 100 is not in use or not needed, the first cover plate 51 fits on the outer side of the bottom of the camera housing 10. The second groove 62 on the first cover plate 51 is arranged corresponding to the first groove 61 on the outer side of the bottom of the housing 10. That is, when the first cover plate 51 is in the closed state, the magnet in the second groove 62 is correspondingly below the magnet in the first groove 61. These two magnets attract each other. In this way, when the first cover plate 51 is in the closed state, under the action of the attraction of these two magnets, the first cover plate 51 can be more closely attached to the bottom of the housing 10, playing a role in protecting optical devices such as the camera lens, laser, or laser galvanometer system and their corresponding filter plates. Optionally, similarly, the second cover plate 52 is also provided with a groove and also has a magnet placed therein. A groove is also formed on the corresponding outer side of the bottom of the housing 10 and also has a magnet placed therein. The two attract each other, and its function is basically the same as that of the above-mentioned "the cover plate can be more closely attached to the bottom of the housing 10", so it will not be elaborated here. In Embodiment 2, at least one groove can also be formed on the outer side of the bottom of the housing 10 of the binocular camera. Correspondingly, at least one groove is also formed on its cover plate 50. Magnets attracting each other are placed in these grooves. Similarly, its function is still basically the same as that of the above-mentioned "the cover plate can be more closely attached to the bottom of the housing 10", so it will not be elaborated here.

[0041] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application 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 should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. It should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0042] Finally, it should be noted that the above-described embodiments are only specific implementation manners of the present application, used to illustrate the technical solutions of the present application, rather than limiting it. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present application can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application. All should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A 3D camera lens and / or laser protection device, characterized in that: The device comprises a driving mechanism (40) and a cover plate (50); the driving mechanism (40) is located as a whole inside a housing (10) of the 3D camera (100); the cover plate (50) is located outside the housing (10); the cover plate (50) is connected to the driving mechanism (40); and the cover plate (50) moves under the action of the driving mechanism (40).

2. The device according to claim 1, characterized in that The 3D camera (100) completes the acquisition of image information through the bottom of the housing (10); when the 3D camera (100) is not in use or does not need to be used, the cover plate (50) is attached to the bottom of the housing (10); when the 3D camera (100) needs to be used, the drive mechanism (40) drives the cover plate (50) to move in a direction away from the bottom of the housing (10).

3. The device according to claim 2, characterized in that The driving mechanism (40) comprises a driving member (41) and a connecting rod assembly (42); the cover plate (50) or a first cover plate (51) in the cover plates (50) is fixedly connected to one end of a first connecting rod (421) in the connecting rod assembly (42); and the output end of the driving member (41) is fixedly connected to one end of a second connecting rod (422) in the connecting rod assembly (42).

4. The device according to claim 3, characterized in that The connecting rod assembly (42) further comprises a third connecting rod (423), the other end of the second connecting rod (422) being rotatably connected to one end of the third connecting rod (423), and the other end of the third connecting rod (423) being rotatably connected to the other end of the first connecting rod (421).

5. The device according to claim 3, characterized in that The bottom of the housing (10) is provided with a first through hole (101), and one end of the first connecting rod (421) passes through the first through hole (101) and is fixedly connected to the cover plate (50) or the first cover plate (51) among the cover plates (50).

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