Angle adjusting mechanism of 3D depth camera

Abstract

The utility model provides an angle adjusting mechanism of a 3D depth camera, which comprises a rear fixing seat, a 3D camera adjusting metal plate, the 3D depth camera and a 3D camera mounting shell, and is characterized in that the 3D camera mounting shell is inserted into a circular hole through a mounting part and is connected with the rear fixing seat to form a revolute pair, and the 3D camera mounting shell can rotate around the central axis of the circular hole; the two sides of the 3D camera adjusting metal plate are connected with the 3D camera mounting shell through connecting shafts to form rotating pairs. The two ends of the side, away from the lens of the 3D depth camera, of the 3D camera adjusting metal plate are connected with a spring and a second screw correspondingly, and the 3D depth camera and the 3D camera adjusting metal plate can be driven by the second screw to rotate around the axis of the connecting shaft. According to the utility model, through manual rotation adjustment in the first direction and spring tightness adjustment in the second direction, flexible angle adjustment of the 3D depth camera is realized, and the 3D depth camera can adapt to different application scene requirements.

Description

Technical Field

[0001] This utility model relates to the field of 3D camera technology, specifically to an angle adjustment mechanism for a 3D depth camera. Background Technology

[0002] Currently, many camera systems have very high requirements for mounting location, especially in applications requiring precise alignment (such as 3D imaging and industrial inspection). This high precision requirement directly leads to a significant increase in the machining accuracy requirements of the entire frame, thereby increasing manufacturing costs and process complexity. Furthermore, even a tiny error in the frame can cause the camera to malfunction or experience performance degradation.

[0003] A Chinese patent with publication number CN220586354U discloses a multi-angle imaging module based on a robotic arm, including a robotic arm body, a first camera, and a second camera. A mounting plate is provided at the end of the robotic arm body, and a first camera adjustment mechanism and a second camera adjustment mechanism are respectively provided on both sides of the mounting plate. The first camera adjustment mechanism includes a first linear displacement component, on which the first camera is mounted, for adjusting the distance between the first camera and the center of the mounting plate. The second camera adjustment mechanism includes a second linear displacement component, on which the second camera is mounted, for adjusting the distance between the second camera and the center of the mounting plate.

[0004] Existing technologies lack angle adjustment mechanisms with low installation requirements. Therefore, there is a need to provide an angle adjustment mechanism for a 3D depth camera, which allows users to flexibly adjust the camera angle according to specific needs, adapt to different application scenarios, reduce the requirements for the machining accuracy of the overall frame, and lower the overall manufacturing cost. Utility Model Content

[0005] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide an angle adjustment mechanism for a 3D depth camera.

[0006] According to the present invention, a 3D depth camera angle adjustment mechanism includes: a rear fixed base, a 3D camera adjustment sheet metal, a 3D depth camera, and a 3D camera mounting housing. A circular hole is provided on one end face of the rear fixed base, and a cylindrical mounting part is formed on one end of the 3D camera mounting housing. The 3D camera mounting housing is inserted into the circular hole through the mounting part and connected to the rear fixed base to form a rotating pair. The 3D camera mounting housing can rotate around the central axis of the circular hole.

[0007] The 3D depth camera is mounted inside the 3D camera mounting housing via a 3D camera adjustment sheet metal. The 3D camera mounting housing has through holes that do not obstruct the 3D depth camera's field of view. The two sides of the 3D camera adjustment sheet metal are connected to the 3D camera mounting housing via connecting shafts to form a rotating pair.

[0008] The two ends of the 3D camera adjustment sheet metal on the side away from the 3D depth camera lens are respectively connected to a spring and a second screw. The two ends of the spring are respectively connected to the inner wall of the 3D camera mounting housing and the 3D camera adjustment sheet metal. The second screw passes through the 3D camera mounting housing and connects to the 3D camera adjustment sheet metal. The spring can be compressed or extended by adjusting the length of the second screw passing through the 3D camera mounting housing. The 3D depth camera and the 3D camera adjustment sheet metal can rotate around the axis of the connecting shaft by the second screw.

[0009] Preferably, a first screw is provided on the rear fixing seat, the first screw is perpendicular to the central axis of the circular hole, and the 3D camera mounting housing and the rear fixing seat are fastened together by the first screw passing through the mounting part and the circular hole.

[0010] Preferably, the 3D camera mounting housing includes a 3D camera housing and a 3D camera cover, which are fastened together by a plurality of fourth screws, and the 3D camera housing and the 3D camera cover cooperate to form a receiving cavity.

[0011] Preferably, the 3D depth camera is equipped with a 3D imaging system, which includes: a left infrared camera, a right infrared camera, a laser projection module, and a computing processor.

[0012] Preferably, the 3D camera housing has a waist hole that matches the 3D depth camera, and the waist hole does not obstruct the viewing angle of the 3D depth camera.

[0013] Preferably, the 3D camera adjustment sheet metal comprises aluminum alloy sheet metal, the 3D camera adjustment sheet metal is U-shaped, and the 3D depth camera is fastened to the inner side of the U-shape of the 3D camera adjustment sheet metal by one or more screws.

[0014] Preferably, the U-shaped sides of the 3D camera adjustment sheet metal extend to form connecting parts, and the two connecting parts are respectively connected to the two side walls of the 3D camera housing through two symmetrically arranged connecting shafts.

[0015] Preferably, the connecting shaft comprises a stainless steel slotted headless shaft screw.

[0016] Preferably, one end of the spring is fastened to the 3D camera adjustment sheet metal via a 3D camera spring adjustment seat, and the other end of the spring is connected to the inner wall of the 3D camera housing, and the spring is always in a compressed state.

[0017] Preferably, a nut is installed on the second screw located on the outside of the 3D camera housing.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This utility model achieves flexible angle adjustment of the 3D depth camera in two directions through manual rotation adjustment in the first direction and spring tension adjustment in the second direction, providing users with precise depth data acquisition capabilities. Users can flexibly adjust the angle of the 3D depth camera according to specific needs, which can adapt to different application scenarios, especially those requiring precise spatial perception.

[0020] 2. This utility model can realize complex 3D camera angle adjustment function through simple mechanical components. The design is simple and easy to operate, which significantly reduces the requirements for the processing accuracy of the whole machine frame. Even if there are certain manufacturing errors in the whole machine frame, these errors can be compensated by manually adjusting the angle of the 3D depth camera. There is no need for extremely high-precision frame processing. More economical materials and processing technology can be selected, thereby greatly reducing the overall manufacturing cost. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram illustrating the structure of the angle adjustment mechanism of the 3D depth camera, which is the main feature of this utility model.

[0023] Figure 2 This is a cross-sectional view of the angle adjustment mechanism of the 3D depth camera, which is the main feature of this utility model.

[0024] Figure 3 This is a schematic diagram illustrating the first direction adjustment of the angle adjustment mechanism of the 3D depth camera, which is the main feature of this utility model.

[0025] Figure 4 This is a schematic diagram illustrating the first direction adjustment of the angle adjustment mechanism of the 3D depth camera, which is the main feature of this utility model.

[0026] Figure 5 This is a schematic diagram illustrating the second-direction adjustment of the angle adjustment mechanism of the 3D depth camera, which is the main feature of this utility model.

[0027] Figure 6 This is a schematic diagram illustrating the second-direction adjustment of the angle adjustment mechanism of the 3D depth camera, which is the main feature of this utility model.

[0028] Figure label:

[0029] Detailed Implementation

[0030] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0031] like Figure 1-6 As shown, the 3D depth camera angle adjustment mechanism provided by this utility model includes: a rear fixing base 1, a 3D camera adjustment sheet metal 9, a 3D depth camera 13, and a 3D camera mounting housing. A circular hole is provided on one end face of the rear fixing base 1, and a cylindrical mounting part is formed on one end of the 3D camera mounting housing. The 3D camera mounting housing is inserted into the circular hole through the mounting part and connected to the rear fixing base 1 to form a rotating pair. The 3D camera mounting housing can rotate around the central axis of the circular hole. The 3D depth camera 13 is mounted inside the 3D camera mounting housing through the 3D camera adjustment sheet metal 9. A viewing angle opening on the 3D camera mounting housing that does not obstruct the viewing angle of the 3D depth camera 13 is provided. The two sides of the 3D camera adjustment sheet metal 9 are connected to the 3D camera mounting housing via connecting shaft 6 to form a rotating pair. The two ends of the 3D camera adjustment sheet metal 9 away from the lens of the 3D depth camera 13 are respectively connected to spring 11 and second screw 5. The two ends of spring 11 are respectively connected to the inner wall of the 3D camera mounting housing and 3D camera adjustment sheet metal 9. The second screw 5 passes through the 3D camera mounting housing and connects to 3D camera adjustment sheet metal 9. Spring 11 can be compressed or extended by adjusting the length of the second screw 5 passing through the 3D camera mounting housing. Both the 3D depth camera 13 and 3D camera adjustment sheet metal 9 can rotate around the axis of connecting shaft 6 by the second screw 5.

[0032] The rear mounting base 1 serves as the mounting foundation, providing support and connection. A first screw 4 is mounted on the rear mounting base 1, perpendicular to the central axis of the circular hole. The 3D camera mounting housing and the rear mounting base 1 are securely connected by the first screw 4 passing through the mounting portion and the circular hole. The first screw 4 is used to fix or loosen the mounting, allowing for manual rotation. The mounting portion of the 3D camera mounting housing has a groove or multiple sets of through holes for fixing with the first screw 4.

[0033] The 3D camera mounting housing includes a 3D camera housing 2 and a 3D camera cover 3. The 3D camera housing 2 and the 3D camera cover 3 are fastened together by a plurality of fourth screws 7. The 3D camera housing 2 and the 3D camera cover 3 cooperate to form a receiving cavity.

[0034] The 3D depth camera 13 is equipped with a complete 3D imaging system, which includes a left infrared camera, a right infrared camera, a laser projection module, and a computing processor. The laser projection module projects specific structured light or dot matrix patterns onto the target scene. The left and right infrared cameras capture the reflected light signals, forming two infrared images. Based on the principle of binocular stereo vision (triangulation) and combined with the reference information provided by the laser projection module, the depth computing processor calculates the depth value of each pixel in the target scene, ultimately generating a depth image containing three-dimensional spatial information.

[0035] The 3D camera housing 3 has an elongated opening that matches the 3D depth camera 13, and the opening does not obstruct the field of view of the 3D depth camera 13.

[0036] The 3D camera adjustment sheet metal 9 is made of aluminum alloy sheet metal and has a heat dissipation function. The 3D camera adjustment sheet metal 9 is U-shaped. The 3D depth camera 13 is fastened to the inner side of the U-shape of the 3D camera adjustment sheet metal 9 by one or more screws 10.

[0037] The U-shaped sides of the 3D camera adjustment sheet metal 9 extend to form connecting parts, and the two connecting parts are connected to the two side walls of the 3D camera housing 2 respectively through two symmetrically arranged connecting shafts 6.

[0038] The connecting shaft 6 includes a stainless steel slotted headless shaft screw, which is equivalent to a shaft that can rotate.

[0039] One end of the spring 11 is fastened to the 3D camera adjustment sheet metal 9 via the 3D camera spring adjustment seat 12, and the other end of the spring 11 is connected to the inner wall of the 3D camera housing 2. The spring 11 is always in a compressed state. The spring 11 presses against and squeezes the 3D camera housing 2 through the 3D camera spring adjustment seat 12. The 3D camera spring adjustment seat 12 cooperates with the spring 11 to adjust the pressure.

[0040] A nut 8 is installed on the second screw 5 located on the outside of the 3D camera housing 2. The second screw 5 and the nut 8 work together to adjust the tightness of the spring 11, thereby changing the shooting angle of the 3D depth camera 13.

[0041] This application allows for adjustment in two directions. The first direction is the central axis of the circular hole, meaning the entire 3D camera mounting housing can rotate around the central axis of the circular hole to adjust the lens direction of the 3D depth camera 13. The second direction is the axis of the connecting shaft 6, meaning the 3D camera adjustment sheet metal 9 can rotate around the axis of the connecting shaft 6 to adjust the lens direction of the 3D depth camera 13.

[0042] The first-direction angle adjustment mechanism includes: loosening the first screw 4 to release the 3D camera mounting housing from the rear mounting base 1, manually rotating the 3D camera housing 2 to adjust the angle of the 3D depth camera 13, observing the viewpoint changes in real time on the 3D camera screen, and adjusting to the target position. After adjustment, the first screw 4 is tightened to fix the position. During adjustment, the shaft and sleeve connection structure between the rear mounting base 1 and the 3D camera mounting housing ensures smooth and controllable rotation. The maximum adjustable angle is 90 degrees.

[0043] The second direction angle adjustment mechanism includes: applying pressure to the 3D camera housing 2 using spring 11 and 3D camera spring adjustment seat 12, and changing the tightness of spring 11 by adjusting the second screw 5 and nut 8. The change in the tightness of spring 11 will cause the angle of 3D camera adjustment sheet metal 9 to change, thereby precisely adjusting the angle of 3D depth camera 13.

[0044] This application achieves flexible angle adjustment of the 3D depth camera 13 in two directions through manual rotation adjustment in the first direction and spring 11 tension adjustment in the second direction. Combined with the core components of 3D imaging technology, it provides users with precise depth data acquisition capabilities. Users can flexibly adjust the angle of the 3D depth camera 13 according to specific needs, which can adapt to different application scenarios, especially those requiring precise spatial perception.

[0045] This application achieves complex 3D camera angle adjustment functions through simple mechanical components. The design is concise and easy to operate, significantly reducing the requirements for the overall frame machining precision. Even if there are certain manufacturing errors in the overall frame, these errors can be compensated for by manually adjusting the angle of the 3D depth camera 13. Since extremely high-precision frame machining is no longer required, more economical materials and processing techniques can be selected, thereby significantly reducing the overall manufacturing cost.

[0046] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0047] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. An angle adjustment mechanism for a 3D depth camera, characterized in that, include: The rear mounting base (1), 3D camera adjustment sheet metal (9), 3D depth camera (13) and 3D camera mounting housing are provided. A circular hole is provided on one end face of the rear mounting base (1). A cylindrical mounting part is formed on one end of the 3D camera mounting housing. The 3D camera mounting housing is inserted into the circular hole through the mounting part and connected to the rear mounting base (1) to form a rotating pair. The 3D camera mounting housing can rotate around the central axis of the circular hole. The 3D depth camera (13) is installed inside the 3D camera mounting housing via the 3D camera adjustment sheet metal (9). The 3D camera mounting housing has a through hole that does not obstruct the viewing angle of the 3D depth camera (13). The two sides of the 3D camera adjustment sheet metal (9) are connected to the 3D camera mounting housing via connecting shafts (6) to form a rotating pair. The two ends of the 3D camera adjustment sheet metal (9) away from the lens of the 3D depth camera (13) are respectively connected to a spring (11) and a second screw (5). The two ends of the spring (11) are respectively connected to the inner wall of the 3D camera mounting housing and the 3D camera adjustment sheet metal (9). The second screw (5) passes through the 3D camera mounting housing and is connected to the 3D camera adjustment sheet metal (9). The spring (11) can be compressed or extended by adjusting the length of the second screw (5) passing through the 3D camera mounting housing. The 3D depth camera (13) and the 3D camera adjustment sheet metal (9) can rotate around the axis of the connecting shaft (6) by the second screw (5).

2. The angle adjustment mechanism of a 3D depth camera of claim 1, wherein, The rear mounting base (1) is provided with a first screw (4), which is perpendicular to the central axis of the circular hole. The 3D camera mounting housing and the rear mounting base (1) are fastened together by the first screw (4) passing through the mounting part and the circular hole.

3. The angle adjustment mechanism of a 3D depth camera of claim 1, wherein, The 3D camera mounting housing includes a 3D camera housing (2) and a 3D camera cover (3). The 3D camera housing (2) and the 3D camera cover (3) are fastened together by a plurality of fourth screws (7). The 3D camera housing (2) and the 3D camera cover (3) cooperate to form a receiving cavity.

4. The angle adjustment mechanism of a 3D depth camera of claim 3, wherein, The 3D depth camera (13) is equipped with a 3D imaging system, which includes a left infrared camera, a right infrared camera, a laser projection module, and a computing processor.

5. The angle adjustment mechanism of a 3D depth camera of claim 4, wherein, The 3D camera housing (3) has a waist hole that matches the 3D depth camera (13), and the waist hole does not obstruct the viewing angle of the 3D depth camera (13).

6. The angle adjustment mechanism of a 3D depth camera of claim 3, wherein, The 3D camera adjustment sheet metal (9) includes aluminum alloy sheet metal. The 3D camera adjustment sheet metal (9) is U-shaped. The 3D depth camera (13) is fastened to the inner side of the U-shape of the 3D camera adjustment sheet metal (9) by one or more screws (10).

7. The angle adjustment mechanism of a 3D depth camera of claim 6, wherein, The U-shaped sides of the 3D camera adjustment sheet metal (9) are extended to form connecting parts, and the two connecting parts are connected to the two side walls of the 3D camera housing (2) respectively through two symmetrically arranged connecting shafts (6).

8. The angle adjustment mechanism of a 3D depth camera of claim 1, wherein, The connecting shaft (6) includes a stainless steel slotted headless shaft screw.

9. The angle adjustment mechanism of a 3D depth camera of claim 3, wherein, One end of the spring (11) is fastened to the 3D camera adjustment sheet metal (9) via the 3D camera spring adjustment seat (12), and the other end of the spring (11) is connected to the inner wall of the 3D camera housing (2). The spring (11) is always in a compressed state.

10. The angle adjustment mechanism of a 3D depth camera of claim 3, wherein, A nut (8) is installed on the second screw (5) located on the outside of the 3D camera housing (2).

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