Multi-degree-of-freedom fine adjustment gimbal for light field restoration and center positioning base

Abstract

The utility model discloses a kind of multi-degree-of-freedom fine adjustment holder and center positioning base for light field restoration, comprising: support frame;Inner rotating seat, inner rotating seat rotation setting in the inside of support frame, the beneficial effects of the utility model are: through the up-down rotation adjustment of one servo motor drive inner rotating seat inside support frame setting, two servo motors drive inner rotating column rotation, cooperate with the rotation adjustment of three servo motors in adjusting part through worm gear and worm transmission to realize bottom rotating disc, satisfy multi-angle dynamic capture demand in light field restoration;Adopt the taper surface cooperation design of bottom positioning column and positioning sleeve, through the axial positioning of outer limiting strip and limiting groove, the guiding insertion of bottom fixed block and mounting groove is combined, cooperate with the automatic locking of spring drive limiting block and limiting slot, the quick disassembly of support and positioning seat is realized, cooperate with the secondary locking of limiting bolt to mobile slide, effectively prevent the equipment falling risk caused by misoperation, equipment installation stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of gimbal technology, specifically to a multi-degree-of-freedom fine-tuning gimbal and a center positioning base for light field restoration. Background Technology

[0002] In the field of light field reconstruction technology, multi-degree-of-freedom fine-tuning gimbals and center positioning bases are key devices for achieving high-quality, multi-view light field data acquisition. Their core function lies in the ability to precisely and flexibly adjust the shooting angle and position of the gimbal camera to meet the comprehensive capture needs of light field information in complex scenarios. Traditional gimbal and base connection methods often involve cumbersome disassembly and assembly processes, requiring various tools and consuming significant time and manpower. In scenarios requiring frequent changes in shooting positions or equipment maintenance, this inefficient disassembly and assembly method severely impacts work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a multi-degree-of-freedom fine-tuning gimbal and a center positioning base for light field restoration, in order to solve the problem that the common connection method of traditional gimbals and bases mentioned in the background art is often complicated to disassemble and assemble, requiring the use of various tools and consuming a lot of time and manpower. In scenarios where shooting positions need to be changed frequently or equipment maintenance is required, this inefficient disassembly and assembly method seriously affects work efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-degree-of-freedom fine-tuning gimbal for light field restoration, comprising:

[0005] Support frame;

[0006] The inner rotating seat is rotatably mounted on the inner side of the support frame;

[0007] An inner rotating column is rotatably disposed inside an inner rotating seat. A top support platform is rotatably disposed on the top of the inner rotating seat, and the top end of the inner rotating column is fixedly connected to the top support platform.

[0008] The pan-tilt camera is mounted on the top support platform.

[0009] A bottom rotating plate is installed at the bottom of the support frame, and a support is rotatably provided at the bottom of the bottom rotating plate;

[0010] The adjustment unit is located inside the support platform, and the bottom rotating disk is connected to the adjustment unit;

[0011] The bottom positioning post is fixed to the bottom of the support platform, and multiple outer limiting strips are fixed at equal intervals on the outer side of the bottom positioning post.

[0012] As a preferred embodiment of this utility model: the adjustment part includes a rotating support column, a worm gear, a worm, and a No. 3 servo motor. The rotating support column is rotatably arranged inside the support platform. The top end of the rotating support column is fixedly connected to the bottom rotating disk. The worm gear is fixedly connected to the outside of the rotating support column. The worm is rotatably arranged inside the support platform. The worm is meshed with the worm gear. The No. 3 servo motor is installed on one side of the support platform by bolts. The output end of the No. 3 servo motor is fixedly connected to the worm.

[0013] As a preferred embodiment of this utility model: a first servo motor is installed on one side of the support frame by bolts, the output end of the first servo motor is fixedly connected to the inner rotating seat, and a second servo motor is installed inside the inner rotating seat by bolts, the output end of the second servo motor is fixedly connected to the inner rotating column.

[0014] A center positioning base for light field restoration includes a positioning seat located below a support. A positioning sleeve is fixedly connected inside the positioning seat. Multiple limiting grooves that cooperate with an outer limiting strip are equidistantly opened on the inner side of the positioning sleeve. Two mounting grooves are symmetrically opened on the top of the positioning seat. Two bottom fixing blocks that cooperate with the mounting grooves are symmetrically fixedly connected to the bottom of the support. A limiting slot is opened on one side of the bottom fixing block. Two limiting blocks that cooperate with the limiting slots are symmetrically slidably arranged inside the positioning seat. The limiting blocks are slidably connected to the mounting grooves.

[0015] As a preferred embodiment of this utility model: a side fixing box is bolted to one side of the positioning seat, a movable slide plate is slidably arranged inside the side fixing box, a connecting slide plate is symmetrically fixed to one side of the movable slide plate, the connecting slide plate is slidably connected to the side fixing box, the connecting slide plate is slidably connected to the positioning seat, one side of the connecting slide plate is fixedly connected to a limiting block, a pull rod is fixedly connected to one side of the movable slide plate, the pull rod is slidably connected to the side fixing box, and four springs are symmetrically installed inside the side fixing box, one end of each spring is connected to the movable slide plate.

[0016] As a preferred embodiment of this utility model: the top of the limiting block is provided with a second inclined surface, the bottom of the bottom fixing block is symmetrically provided with a first inclined surface that cooperates with the second inclined surface, the internal thread of the side fixing box is provided with a limiting bolt that cooperates with the movable slide plate, the internal sliding plate is symmetrically provided with a limiting rod, and the limiting rod is fixedly connected to the side fixing box.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a No. 1 servo motor in the support frame to drive the inner rotating seat to rotate up and down, and a No. 2 servo motor to drive the inner rotating column to rotate. In conjunction with the No. 3 servo motor in the adjustment part, the rotation adjustment of the bottom rotating disk is achieved through worm gear and worm transmission, which meets the multi-angle dynamic capture requirements in light field restoration. The conical surface fit design of the bottom positioning column and the positioning sleeve is adopted. Through the axial positioning of the outer limit strip and the limit groove, combined with the guide insertion of the bottom fixing block and the mounting groove, and the automatic locking of the limit block and the limit groove driven by the spring, the quick assembly and disassembly of the support and the positioning seat are realized. With the secondary locking of the moving slide plate by the limit bolt, the risk of equipment falling due to misoperation is effectively prevented, and the installation stability of the equipment is improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the disassembly of the support and positioning seat of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the support platform of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the positioning seat of this utility model.

[0022] In the diagram: 1. Support frame; 2. Bottom rotating plate; 3. Support platform; 4. Inner rotating seat; 5. Servo motor No. 1; 6. Servo motor No. 2; 7. Inner rotating column; 8. Top support platform; 9. Pan-tilt camera; 10. Rotating support column; 11. Worm gear; 12. Worm; 13. Servo motor No. 3; 14. Bottom fixing block; 15. First inclined surface; 16. Limiting slot; 17. Bottom positioning column; 18. Outer limiting strip; 19. Positioning seat; 20. Mounting slot; 21. Positioning sleeve; 22. Limiting slot; 23. Limiting block; 24. Second inclined surface; 25. Connecting slide plate; 26. Side fixing box; 27. Pull rod; 28. Moving slide plate; 29. ​​Limiting rod; 30. Spring; 31. Limiting bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 4This utility model provides a technical solution: a multi-degree-of-freedom fine-tuning gimbal for light field restoration, comprising: a support frame 1; an inner rotating seat 4 rotatably disposed inside the support frame 1; an inner rotating column 7 rotatably disposed inside the inner rotating seat 4, a top support platform 8 rotatably disposed on the top of the inner rotating seat 4, and the top end of the inner rotating column 7 being fixedly connected to the top support platform 8; a gimbal camera 9 mounted on the top support platform 8; a bottom rotating disk 2 mounted on the bottom of the support frame 1 by bolts, and a support platform 3 rotatably disposed on the bottom of the bottom rotating disk 2; an adjustment part disposed inside the support platform 3, and the bottom rotating disk 2 being connected to the adjustment part; a bottom positioning column 17 fixedly connected to the bottom of the support platform 3, and multiple outer limit strips 18 equidistantly fixed to the outer side of the bottom positioning column 17.

[0025] It should be noted that in this embodiment, the first servo motor 5 is fixed to one side of the support frame 1 by bolts, and its output end is directly connected to the inner rotating seat 4. When the motor rotates, the inner rotating seat 4 rotates on the bearing inside the support frame 1, driving the top support platform 8 and the pan-tilt camera 9 to swing horizontally synchronously. The servo motor has a built-in encoder that monitors the speed and position in real time, and adjusts the motor pulse signal through an external controller to achieve an angle positioning accuracy of ±0.05°. The second servo motor 6 is installed inside the inner rotating seat 4, and its output end is directly connected to the inner rotating column 7. When the motor rotates, the inner rotating column 7 rotates inside the inner rotating seat 4. Servo motor 13 is mounted on one side of support 3. It is driven by a worm gear 12 meshing with a worm wheel 11 on the rotating support column 10. The motor drives the worm gear 12 to rotate, and the worm wheel 11 converts this rotational motion into rotation of the rotating support column 10, thereby driving the bottom rotating disk 2 and the top pan-tilt camera 9 to rotate. After power failure, the worm wheel 11 cannot drive the worm gear 12 in the reverse direction, achieving mechanical self-locking and preventing the pan-tilt camera from shifting due to gravity or vibration. An external controller generates motion commands based on a light field reconstruction algorithm and adjusts the speed and direction of each servo motor in real time through encoder feedback, enabling the pan-tilt camera 9 to rotate within space and satisfy multiple... To meet the dynamic positioning requirements, the bottom positioning post 17 of the support 3 is inserted into the positioning sleeve 21 of the positioning seat 19. The outer limiting strip 18 cooperates with the limiting groove 22 on the inner side of the positioning sleeve 21 to complete the axial positioning. The two bottom fixing blocks 14 at the bottom of the support 3 slide along the mounting groove 20 at the top of the positioning seat 19 to ensure the accurate relative position of the support 3 and the positioning seat 19. The first inclined surface 15 at the bottom of the bottom fixing block 14 contacts the second inclined surface 24 at the top of the limiting block 23. The downward pressure causes the limiting block 23 to retract under the force of the inclined surface. The limiting block 23 is fixed to the moving slide plate 28 through the connecting slide plate 25. Under the thrust of the four springs 30 inside the side fixing box 26, when the bottom fixing block 14 is pressed down until the limiting slot 16 is aligned with the limiting block 23, the springs 30 push the limiting block 23 to automatically engage in the limiting slot 16, completing the automatic locking. The limiting bolt 31 inside the side fixing box 26 is rotated so that its end presses against the moving slide plate 28 to prevent the limiting block 23 from accidentally dislodging due to the springs 30 loosening due to vibration. Pulling the pull rod 27 causes the moving slide plate 28 to compress the springs 30, and the limiting block 23 disengages from the limiting slot 16. At the same time, the limiting rod 29 limits the travel of the moving slide plate 28 to prevent the springs 30 from overloading, thus completing the disassembly.

[0026] The specific architecture and operation logic of the servo motor achieving coordinated control through an external controller in this application are consistent with the existing technology in this field. The servo motors used are all equipped with encoders, which can provide real-time feedback on the speed, position and other information of the servo motor. This control method has been maturely applied in many similar industrial scenarios, so it will not be discussed in detail here.

[0027] In one embodiment, such as Figures 1 to 4As shown, the adjustment unit includes a rotating support column 10, a worm gear 11, a worm 12, and a third servo motor 13. The rotating support column 10 is rotatably mounted inside the support 3. The top end of the rotating support column 10 is fixedly connected to the bottom rotating disk 2. The worm gear 11 is fixedly connected to the outside of the rotating support column 10. The worm 12 is rotatably mounted inside the support 3. The worm 12 is meshed with the worm gear 11. The third servo motor 13 is bolted to one side of the support 3. The output end of the third servo motor 13 is fixedly connected to the worm 12.

[0028] It should be noted that in this embodiment, the self-locking rotation adjustment of the bottom rotating disk 2 is achieved through the meshing transmission design of the worm gear 11 and the worm 12. When the servo motor 13 drives the worm 12 to rotate, the worm gear 11 drives the rotating support column 10 and the bottom rotating disk 2 to rotate synchronously. Moreover, after the power is cut off, the self-locking characteristic of the worm gear effectively prevents angular deviation and improves the shooting stability of light field reconstruction.

[0029] In one embodiment, such as Figures 1 to 4 As shown, a first servo motor 5 is bolted to one side of the support frame 1. The output end of the first servo motor 5 is fixedly connected to the inner rotating seat 4. A second servo motor 6 is bolted to the inside of the inner rotating seat 4. The output end of the second servo motor 6 is fixedly connected to the inner rotating column 7.

[0030] It should be noted that in this embodiment, the first servo motor 5 drives the inner rotating seat 4 to rotate horizontally within the support frame 1, and the second servo motor 6 drives the inner rotating column 7 to rotate the top support platform 8. The two axes do not interfere with each other. In conjunction with the encoder feedback system, it meets the fast response requirements of multi-view dynamic capture in light field restoration.

[0031] A center positioning base for light field restoration includes a positioning base 19 located below a support 3. A positioning sleeve 21 is fixedly connected inside the positioning base 19. Multiple limiting grooves 22 that cooperate with outer limiting strips 18 are equidistantly opened on the inner side of the positioning sleeve 21. Two mounting grooves 20 are symmetrically opened on the top of the positioning base 19. Two bottom fixing blocks 14 that cooperate with the mounting grooves 20 are symmetrically fixedly connected to the bottom of the support 3. A limiting slot 16 is opened on one side of the bottom fixing block 14. Two limiting blocks 23 that cooperate with the limiting slots 16 are symmetrically slidably arranged inside the positioning base 19. The limiting blocks 23 are slidably connected to the mounting grooves 20.

[0032] It should be noted that in this embodiment, when the bottom positioning post 17 is inserted into the positioning sleeve 21, the outer limiting strip 18 and the limiting groove 22 cooperate to complete the axial positioning. At the same time, the bottom fixing block 14 slides along the mounting groove 20 until the limiting slot 16 is aligned with the limiting block 23, thereby limiting the installation position.

[0033] In one embodiment, such as Figures 1 to 4As shown, a side fixing box 26 is bolted to one side of the positioning seat 19. A movable slide plate 28 is slidably arranged inside the side fixing box 26. A connecting slide plate 25 is symmetrically fixed to one side of the movable slide plate 28. The connecting slide plate 25 is slidably connected to the side fixing box 26 and the positioning seat 19. One side of the connecting slide plate 25 is fixedly connected to the limiting block 23. A pull rod 27 is fixedly connected to one side of the movable slide plate 28. The pull rod 27 is slidably connected to the side fixing box 26. Four springs 30 are symmetrically installed inside the side fixing box 26. One end of the spring 30 is connected to the movable slide plate 28.

[0034] It should be noted that in this embodiment, when the support 3 is installed in place, the spring 30 pushes the movable slide plate 28 to make the limit block 23 automatically engage with the limit slot 16. When disassembly is required, the pull rod 27 is pulled to compress the spring 30 to disengage the limit block 23, and the position of the movable slide plate 28 is locked with the limit bolt 31 to prevent the equipment from falling due to misoperation.

[0035] In one embodiment, such as Figures 1 to 4 As shown, the top of the limiting block 23 is provided with a second inclined surface 24, and the bottom of the bottom fixing block 14 is symmetrically provided with a first inclined surface 15 that cooperates with the second inclined surface 24. The side fixing box 26 is internally threaded with a limiting bolt 31 that cooperates with the movable slide plate 28. The movable slide plate 28 is symmetrically slidably provided with a limiting rod 29 inside, and the limiting rod 29 is fixedly connected to the side fixing box 26.

[0036] It should be noted that, in this embodiment, during installation, the wedge angle between the first inclined surface 15 and the second inclined surface 24 causes the bottom fixing block 14 to press down and automatically push the limiting block 23 back, without the need for manual operation.

[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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 utility model.

[0038] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-degree-of-freedom fine-tuning gimbal for light field reconstruction, characterized in that, include: Support frame (1); The inner rotating seat (4) is rotatably mounted on the inner side of the support frame (1); An inner rotating column (7) is rotatably disposed inside an inner rotating seat (4). A top support platform (8) is rotatably disposed on the top of the inner rotating seat (4). The top end of the inner rotating column (7) is fixedly connected to the top support platform (8). A pan-tilt camera (9) is mounted on a top support platform (8); Bottom rotating disk (2), the bottom rotating disk (2) is installed at the bottom of the support frame (1), and the bottom of the bottom rotating disk (2) is rotatably provided with a support platform (3); The adjustment part is located inside the support (3), and the bottom rotating disk (2) is connected to the adjustment part; Bottom positioning post (17) is fixed to the bottom of the support (3), and multiple outer limiting strips (18) are fixed at equal intervals on the outer side of the bottom positioning post (17).

2. The multi-degree-of-freedom fine-tuning gimbal for light field reconstruction according to claim 1, characterized in that: The adjustment unit includes a rotating support column (10), a worm gear (11), a worm (12), and a third servo motor (13). The rotating support column (10) is rotatably installed inside the support (3). The top of the rotating support column (10) is fixedly connected to the bottom rotating disk (2). The worm gear (11) is fixedly connected to the outside of the rotating support column (10). The worm (12) is rotatably installed inside the support (3). The worm (12) is meshed with the worm gear (11). The third servo motor (13) is bolted to one side of the support (3). The output end of the third servo motor (13) is fixedly connected to the worm (12).

3. The multi-degree-of-freedom fine-tuning gimbal for light field reconstruction according to claim 1, characterized in that: A first servo motor (5) is bolted to one side of the support frame (1). The output end of the first servo motor (5) is fixedly connected to the inner rotating seat (4). A second servo motor (6) is bolted to the inside of the inner rotating seat (4). The output end of the second servo motor (6) is fixedly connected to the inner rotating column (7).

4. A multi-degree-of-freedom fine-tuning gimbal for light field reconstruction according to any one of claims 1-3, characterized in that: The system includes a positioning seat (19) located below the support (3). A positioning sleeve (21) is fixedly connected inside the positioning seat (19). Multiple limiting grooves (22) that cooperate with the outer limiting strip (18) are equidistantly opened on the inner side of the positioning sleeve (21). Two mounting grooves (20) are symmetrically opened on the top of the positioning seat (19). Two bottom fixing blocks (14) that cooperate with the mounting grooves (20) are symmetrically fixed to the bottom of the support (3). A limiting slot (16) is opened on one side of the bottom fixing block (14). Two limiting blocks (23) that cooperate with the limiting slots (16) are symmetrically slidably arranged inside the positioning seat (19). The limiting blocks (23) are slidably connected to the mounting grooves (20).

5. A multi-degree-of-freedom fine-tuning gimbal for light field reconstruction according to claim 4, characterized in that: A side fixing box (26) is bolted to one side of the positioning seat (19). A movable slide plate (28) is slidably arranged inside the side fixing box (26). A connecting slide plate (25) is symmetrically fixed to one side of the movable slide plate (28). The connecting slide plate (25) is slidably connected to the side fixing box (26). The connecting slide plate (25) is slidably connected to the positioning seat (19). One side of the connecting slide plate (25) is fixed to the limiting block (23). A pull rod (27) is fixed to one side of the movable slide plate (28). The pull rod (27) is slidably connected to the side fixing box (26). Four springs (30) are symmetrically installed inside the side fixing box (26). One end of the spring (30) is connected to the movable slide plate (28).

6. A multi-degree-of-freedom fine-tuning gimbal for light field reconstruction according to claim 5, characterized in that: The top of the limiting block (23) is provided with a second inclined surface (24), and the bottom of the bottom fixing block (14) is symmetrically provided with a first inclined surface (15) that cooperates with the second inclined surface (24). The side fixing box (26) is internally threaded with a limiting bolt (31) that cooperates with the movable slide plate (28). The movable slide plate (28) is symmetrically slidably provided with a limiting rod (29), and the limiting rod (29) is fixedly connected to the side fixing box (26).

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