CoreXY structure-based stereoscopic vision shooting device with variable number of eyes

Abstract

The utility model relates to the field of shooting devices and technologies, in particular to a variable-number stereoscopic vision shooting device based on a CoreXY structure, which comprises a support, a shooting platform and a shooting mechanism are arranged in the support, lifting mechanisms are symmetrically arranged on the left side and the right side of the support, and the two lifting mechanisms are both connected with the shooting platform. The control module is used for controlling the shooting platform to move up and down; according to the utility model, the camera is fixedly arranged on the cross slide block, and the cross slide block is jointly supported by the X-axis slide bar and the Y-axis slide bar, so that compared with the traditional mode, the displacement amount of the cross slide block in the vertical direction is smaller when the cross slide block moves along the horizontal direction, and the improvement of the shooting precision of the camera is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of shooting devices, in particular to a variable-number stereoscopic vision shooting device based on a CoreXY structure. Background Art

[0002] At present, for the technology of stereo vision measurement, the traditional method mostly uses two or more ordinary cameras to shoot the same scene, or uses a stereo camera to shoot. When using multiple cameras for shooting, because it is necessary to simulate the way the human eye observes the world, all cameras must be placed on the same horizontal plane, and the parameters inside the camera must remain completely consistent. When shooting different objects, it is also necessary to adjust the position of the object, the number of all cameras, and the parameters. The operation is cumbersome and inefficient. In addition, when using a stereo camera to shoot, binocular cameras are mostly mainstream, and if you want to use a multi-eye camera for shooting, you need to use multiple stereo cameras, which not only increases the cost of shooting, but also makes the equipment more complicated.

[0003] In the prior art, there are also devices that use a single camera for stereoscopic vision shooting. For example, the utility model patent with publication number CN219318086U proposes a stereoscopic vision shooting device, which specifically includes a shooting platform, a fixed seat, a sliding seat, a camera assembly, and a linkage belt and other structures. During actual operation, the patented technical solution can arbitrarily change the position and number of camera pictures by utilizing the multi-axis displacement of a single camera, and obtain three-dimensional information by capturing images of the same object at two or more different positions. The technical solution disclosed in the above patent can complete stereoscopic vision measurement technology by means of multi-axis displacement of a single camera. Compared with traditional technologies, it greatly saves equipment costs and reduces the difficulty of operation.

[0004] However, in this technical solution, the camera is set on the camera slider, and the camera slider is slidably connected to the third slider. Since the camera and the camera slider have a certain weight, the weight can compress the third slider to produce a slight deformation. When the camera slider moves to the middle of the third slider, the bending degree of the third slider is greater than that of other positions, which causes the camera to produce unnecessary displacement in the vertical direction, affecting the shooting accuracy. To this end, we propose a variable-eye stereoscopic vision shooting device based on the CoreXY structure to solve the above-mentioned drawbacks. Utility Model Content

[0005] The purpose of the utility model is to provide a variable-number stereoscopic vision shooting device based on a CoreXY structure, which is used to solve the problems raised in the above-mentioned background technology.

[0006] The utility model is realized by the following technical scheme: a variable-mesh stereoscopic vision shooting device based on a CoreXY structure, comprising a bracket, a shooting platform and a shooting mechanism are installed inside the bracket, and lifting mechanisms are symmetrically arranged on the left and right sides of the bracket, and the two lifting mechanisms are connected to the shooting platform to control the up and down movement of the shooting platform;

[0007] The shooting mechanism includes a cross slider, a camera, an X-axis slider, and a Y-axis slider. The X-axis slider and the Y-axis slider are arranged in a cross shape. The cross slider is slidably matched with the X-axis slider and the Y-axis slider at the same time. The camera is arranged on the bottom surface of the cross slider.

[0008] The shooting mechanism also includes an X-axis moving component and a Y-axis moving component. The X-axis moving component is used to drive the X-axis slide bar to slide axially along the Y-axis slide bar, and the Y-axis moving component is used to drive the Y-axis slide bar to slide axially along the X-axis slide bar.

[0009] Optionally, the lifting mechanism includes a Z-axis motor, a Z-axis screw and a Z-axis optical rod, the Z-axis motor is arranged on the bottom surface of the bracket, the output shaft of the Z-axis motor is coaxially connected with the Z-axis screw through a coupling, the Z-axis screw and the Z-axis optical rod are both distributed vertically and pass through the shooting platform, and the Z-axis screw and the shooting platform are threadedly connected, the top and bottom ends of the Z-axis optical rod are fixedly connected to the bracket, and the Z-axis optical rod and the shooting platform are slidably fitted through linear bearings.

[0010] Optionally, the X-axis moving assembly includes two X-axis optical rods and an X-axis motor, the two X-axis optical rods are symmetrically distributed on the left and right, both ends of the X-axis optical rods are rotatably connected to X-axis belt seat bearings, and the X-axis belt seat bearings are fixedly connected to the bracket; the X-axis motor is fixedly connected to the bracket, and the output shaft of the X-axis motor is connected to a first synchronous wheel, one end of one of the X-axis optical rods is fixedly sleeved with a second synchronous wheel, and the first synchronous wheel and the second synchronous wheel are connected by a first synchronous belt; both ends of the X-axis optical rods are fixedly sleeved with a first pulley, and the two first pulleys on the same side of the two X-axis optical rods are connected by an X-axis synchronous belt.

[0011] Optionally, the Y-axis moving assembly includes two Y-axis polished rods and a Y-axis motor, the two Y-axis polished rods are symmetrically distributed front to back, both ends of the Y-axis polished rods are rotatably connected to Y-axis belt seat bearings, and the Y-axis belt seat bearings are fixedly connected to the bracket; the Y-axis motor is fixedly connected to the bracket, and the output shaft of the Y-axis motor is connected to a third synchronous wheel, one end of one of the Y-axis polished rods is fixedly sleeved with a fourth synchronous wheel, and the third synchronous wheel and the fourth synchronous wheel are connected by a second synchronous belt; both ends of the Y-axis polished rods are fixedly sleeved with a second pulley, and the two second pulleys on the same side of the two Y-axis polished rods are connected by a Y-axis synchronous belt.

[0012] Optionally, both ends of the X-axis slide bar are provided with X-axis sliders, the two X-axis sliders are respectively connected to two X-axis synchronous belts, and the two X-axis sliders are respectively slidably matched with two Y-axis polished rods.

[0013] Optionally, both ends of the Y-axis slide bar are provided with Y-axis sliders, the two Y-axis sliders are respectively connected to two Y-axis synchronous belts, and the two Y-axis sliders are respectively slidably matched with two X-axis optical rods.

[0014] Optionally, an X-axis sliding hole and a Y-axis sliding hole are formed on the cross slide, and the X-axis sliding rod and the Y-axis sliding rod are movable through the X-axis sliding hole and the Y-axis sliding hole respectively.

[0015] Compared with the prior art, the utility model provides a variable-number stereoscopic vision shooting device based on the CoreXY structure, which has the following beneficial effects:

[0016] 1. The camera in the present invention is fixed on a cross slider, and the cross slider is supported by an X-axis slider and a Y-axis slider. Compared with the traditional method, when the cross slider in the present invention moves in the horizontal direction, its displacement in the vertical direction is smaller, thus helping to improve the camera shooting accuracy;

[0017] 2. The cross slider in the utility model is constrained by the X-axis slider and the Y-axis slider during the movement. Compared with the existing method, the utility model helps the camera to improve stability while maintaining the moving speed, thereby making the camera shooting clearer;

[0018] 3. The X-axis slider and the Y-axis slider in the present invention are both split-type designs, which helps to improve the efficiency of installation and disassembly, and thus facilitates the operator to correct the movement direction of the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2This is a side view of the structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the shooting mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the X-axis moving component of the utility model;

[0023] Figure 5 This is a schematic diagram of the Y-axis moving component of the utility model;

[0024] Figure 6 This is a schematic diagram of the cross slider and camera structure of the utility model;

[0025] Figure 7 This is a schematic diagram of the splitting of the Y-axis slider of the utility model.

[0026] In the figure: 100, bracket; 200, shooting platform; 300, shooting mechanism; 301, cross slider; 3011, X-axis sliding hole; 3012, Y-axis sliding hole; 302, camera; 303, X-axis sliding rod; 304, Y-axis sliding rod; 305, X-axis moving assembly; 3051, X-axis optical rod; 3052, X-axis motor; 3053, X-axis seat bearing; 3054, first synchronous wheel; 3055, second synchronous wheel; 3056, first pulley; 3057, X-axis synchronous belt; 3058, first synchronous belt; 306, Y Axis moving assembly; 3061, Y-axis polished rod; 3062, Y-axis motor; 3063, Y-axis seat bearing; 3064, third synchronous wheel; 3065, fourth synchronous wheel; 3066, second pulley; 3067, Y-axis synchronous belt; 3068, second synchronous belt; 307, X-axis slider; 308, Y-axis slider; 309, horizontal linear bearing; 310, connecting hole; 311, penetration port; 400, lifting mechanism; 401, Z-axis motor; 402, Z-axis lead screw; 403, Z-axis polished rod; 404, longitudinal linear bearing. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 - Figure 7A variable-mesh stereoscopic vision shooting device based on a CoreXY structure includes a bracket 100, which is in the shape of a rectangular frame. A shooting platform 200 and a shooting mechanism 300 are installed inside the bracket 100. Lifting mechanisms 400 are symmetrically arranged on the left and right sides of the bracket 100. Both lifting mechanisms 400 are connected to the shooting platform 200 for controlling the up and down movement of the shooting platform 200. Specifically, the lifting mechanism 400 includes a Z-axis motor 401, a Z-axis screw rod 402 and a Z-axis optical rod 403, wherein the Z-axis motor 401 is arranged on the bottom surface of the bracket 100, the output shaft of the Z-axis motor 401 is coaxially connected with the Z-axis screw rod 402 through a coupling, the Z-axis screw rod 402 and the Z-axis optical rod 403 are both vertically distributed and penetrate the shooting platform 200, and the Z-axis screw rod 402 is threadedly connected with the shooting platform 200, the top and bottom ends of the Z-axis optical rod 403 are fixedly connected with the bracket 100, and the Z-axis optical rod 403 and the shooting platform 200 are slidably matched through the longitudinal linear bearing 404. Therefore, when the Z-axis motor 401 drives the Z-axis screw rod 402 to rotate, the shooting platform 200 can be controlled to slide up and down, and the two Z-axis motors 401 should be started and stopped at the same time, otherwise the shooting platform 200 cannot be controlled to rise and fall smoothly.

[0029] On the other hand, the shooting mechanism 300 includes a cross slider 301, a camera 302, an X-axis slider 303, and a Y-axis slider 304. Figure 3 As shown, the X-axis slide bar 303 and the Y-axis slide bar 304 are arranged in a cross-shaped pattern, the cross slider 301 is slidably matched with the X-axis slide bar 303 and the Y-axis slide bar 304 at the same time, and the camera 302 is arranged on the bottom surface of the cross slider 301; specifically, the cross slider 301 is provided with a mounting hole for mounting the camera 302, the camera 302 passes through the mounting hole from bottom to top, and the lens of the camera 302 is vertically facing downward. The cross slider 301 is provided with an X-axis sliding hole 3011 and a Y-axis sliding hole 3012, the X-axis slide bar 303 and the Y-axis slide bar 304 are respectively movable through the X-axis sliding hole 3011 and the Y-axis sliding hole 3012, so the cross slider 301 can slide smoothly along the X-axis direction and the Y-axis direction.

[0030] It is worth mentioning that the camera 302 in this embodiment is fixed on the cross slider 301, and the cross slider 301 slides with the X-axis slider 303 and the Y-axis slider 304, that is, the cross slider 301 is jointly supported by the X-axis slider 303 and the Y-axis slider 304, and the X-axis slider 303 and the Y-axis slider 304 are cross-distributed, which greatly increases the stability of the camera 302 while maintaining the moving speed in the X and Y directions, thereby improving the shooting accuracy of the camera 302.

[0031] Furthermore, the photographing mechanism 300 further includes an X-axis moving assembly 305 and a Y-axis moving assembly 306. The X-axis moving assembly 305 is used to drive the X-axis slide bar 303 to slide along the axial direction of the Y-axis slide bar 304, and the Y-axis moving assembly 306 is used to drive the Y-axis slide bar 304 to slide along the axial direction of the X-axis slide bar 303. The X-axis moving assembly 305 includes two X-axis optical rods 3051 and an X-axis motor 3052. Figure 4 As shown, two X-axis optical rods 3051 are symmetrically distributed, and both ends of the X-axis optical rods 3051 are rotatably connected with X-axis belt bearings 3053, and the X-axis belt bearings 3053 are fixedly connected to the bracket 100; the X-axis motor 3052 is fixedly connected to the bracket 100, and the output shaft of the X-axis motor 3052 is connected with a first synchronous wheel 3054, and one end of one of the X-axis optical rods 3051 is fixedly sleeved with a second synchronous wheel 3055, and the first synchronous wheel 3054 and the second synchronous wheel 3055 are connected by a first synchronous belt 3058; both ends of the X-axis optical rods 3051 are fixedly sleeved with a first pulley 3056, and the two first pulleys 3056 on the same side of the two X-axis optical rods 3051 are connected by an X-axis synchronous belt 3057. Therefore, when the X-axis motor 3052 is started, it can drive the two X-axis optical rods 3051 to rotate synchronously, and drive the two X-axis synchronous belts 3057 to rotate synchronously.

[0032] In addition, the Y-axis moving assembly 306 includes two Y-axis polished rods 3061 and a Y-axis motor 3062. Figure 5 As shown, the two Y-axis polished rods 3061 are symmetrically distributed front to back, and both ends of the Y-axis polished rods 3061 are rotatably connected with the Y-axis belt seat bearing 3063, and the Y-axis belt seat bearing 3063 is fixedly connected to the bracket 100; the Y-axis motor 3062 is fixedly connected to the bracket 100, and the output shaft of the Y-axis motor 3062 is connected with the third synchronous wheel 3064, one end of one of the Y-axis polished rods 3061 is fixedly sleeved with the fourth synchronous wheel 3065, and the third synchronous wheel 3064 and the fourth synchronous wheel 3065 are connected by a second synchronous belt 3068; both ends of the Y-axis polished rod 3061 are fixedly sleeved with the second pulley 3066, and the two second pulleys 3066 on the same side of the two Y-axis polished rods 3061 are connected by a Y-axis synchronous belt 3067. Therefore, when the Y-axis motor 3062 is started, it can drive the two Y-axis optical rods 3061 to rotate synchronously, and drive the two Y-axis synchronous belts 3067 to rotate synchronously, and the X-axis optical rod 3051 and the Y-axis optical rod 3061 are vertically distributed.

[0033] Specifically, both ends of the X-axis slide bar 303 are provided with X-axis sliders 307, the two X-axis sliders 307 are respectively connected to the two X-axis synchronous belts 3057, and the two X-axis sliders 307 are respectively slidably matched with the two Y-axis optical rods 3061. Both ends of the Y-axis slide bar 304 are provided with Y-axis sliders 308, the two Y-axis sliders 308 are respectively connected to the two Y-axis synchronous belts 3067, and the two Y-axis sliders 308 are respectively slidably matched with the two X-axis optical rods 3051. Therefore, when the X-axis motor 3052 is started, the camera 302 can be driven to slide along the Y-axis direction, and when the Y-axis motor 3062 is started, the camera 302 can be driven to slide along the X-axis direction.

[0034] More specifically, the X-axis slider 307 and the Y-axis slider 308 are each composed of two half structures. Figure 7 As shown, the two half structures are fixed by bolt connection, and an axial hole is formed in the middle position after the two half structures are spliced ​​and fixed, and the axial hole coincides with the X-axis light rod 3051 and the Y-axis light rod 3061; in addition, a horizontal linear bearing 309 is fixedly arranged between the two half structures, and the horizontal linear bearing 309 is sleeved on the outside of the corresponding X-axis light rod 3051 or the Y-axis light rod 3061, and its function is to improve the stability of the X-axis slider 307 and the Y-axis slider 308 when moving.

[0035] In addition, the X-axis slider 307 and the Y-axis slider 308 are both T-shaped structures, and the outer surfaces of the two are also provided with a semi-enclosed connection hole 310, and the connection hole 310 is used to insert the corresponding X-axis light rod 3051 or the Y-axis light rod 3061, and the X-axis light rod 3051 or the Y-axis light rod 3061 is connected with the connection hole 310 by interference fit. The X-axis slider 307 and the Y-axis slider 308 are both provided with a through hole 311, and the inner surface of the through hole 311 has an engagement groove; wherein the X-axis synchronous belt 3057 passes through the through hole 311 on the X-axis slider 307, and the X-axis synchronous belt 3057 is consistent with the engagement groove; the Y-axis synchronous belt 3067 passes through the through hole 311 on the Y-axis slider 308, and the Y-axis synchronous belt 3058 is consistent with the engagement groove.

[0036] In summary, in the specific use of this embodiment, it is necessary to place the object to be photographed on the shooting platform 200, and then use the lifting mechanism 300 to control the shooting platform 200 to rise and fall to a suitable height, and then use the X-axis moving component 305 and the Y-axis moving component 306 to control the camera 302 to translate in the horizontal direction, so as to take multiple groups of photos and finally form a three-dimensional shooting effect. It is worth mentioning that the cross slider 301 in this embodiment is supported by the X-axis slider 303 and the Y-axis slider 304 at the same time, so when it moves to different positions in the horizontal direction, the displacement generated in the vertical direction is smaller, which helps to improve the shooting accuracy of the camera 302. At the same time, the X-axis slider 307 and the Y-axis slider 308 in this embodiment are both composed of two parts of the structure, so it helps to improve the efficiency of installation and disassembly.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable-mesh stereoscopic vision shooting device based on a CoreXY structure, comprising a bracket (100), wherein a shooting platform (200) and a shooting mechanism (300) are installed inside the bracket (100), characterized in that: Lifting mechanisms (400) are symmetrically provided on the left and right sides of the bracket (100), and the two lifting mechanisms (400) are both connected to the shooting platform (200) and are used to control the up and down movement of the shooting platform (200); The photographing mechanism (300) comprises a cross slider (301), a camera (302), an X-axis slider (303), and a Y-axis slider (304); the X-axis slider (303) and the Y-axis slider (304) are arranged in a cross-shaped pattern; the cross slider (301) is slidably matched with the X-axis slider (303) and the Y-axis slider (304); and the camera (302) is arranged on the bottom surface of the cross slider (301); The shooting mechanism (300) further comprises an X-axis moving assembly (305) and a Y-axis moving assembly (306), wherein the X-axis moving assembly (305) is used to drive the X-axis slide bar (303) to slide axially along the Y-axis slide bar (304), and the Y-axis moving assembly (306) is used to drive the Y-axis slide bar (304) to slide axially along the X-axis slide bar (303).

2. The variable-mesh stereoscopic vision shooting device based on CoreXY structure according to claim 1, characterized in that: The lifting mechanism (400) comprises a Z-axis motor (401), a Z-axis screw rod (402) and a Z-axis optical rod (403); the Z-axis motor (401) is arranged on the bottom surface of the bracket (100); the output shaft of the Z-axis motor (401) is coaxially connected to the Z-axis screw rod (402) through a coupling; the Z-axis screw rod (402) and the Z-axis optical rod (403) are both distributed vertically and penetrate the shooting platform (200); the Z-axis screw rod (402) and the shooting platform (200) are threadedly connected; the top and bottom ends of the Z-axis optical rod (403) are fixedly connected to the bracket (100); and the Z-axis optical rod (403) and the shooting platform (200) are slidably matched through a longitudinal linear bearing (404).

3. The variable-mesh stereoscopic vision shooting device based on CoreXY structure according to claim 1, characterized in that: The X-axis moving assembly (305) comprises two X-axis optical rods (3051) and an X-axis motor (3052), wherein the two X-axis optical rods (3051) are symmetrically distributed, and both ends of the X-axis optical rods (3051) are rotatably connected to X-axis seat bearings (3053), and the X-axis seat bearings (3053) are fixedly connected to the bracket (100); the X-axis motor (3052) is fixedly connected to the bracket (100), and the output shaft of the X-axis motor (3052) is connected to a first synchronous motor. A step wheel (3054), one end of one of the X-axis optical rods (3051) is fixedly sleeved with a second synchronous wheel (3055), and the first synchronous wheel (3054) and the second synchronous wheel (3055) are connected via a first synchronous belt (3058); both ends of the X-axis optical rod (3051) are fixedly sleeved with a first pulley (3056), and the two first pulleys (3056) on the same side of the two X-axis optical rods (3051) are connected via an X-axis synchronous belt (3057).

4. The variable-number stereoscopic vision shooting device based on CoreXY structure according to claim 3, characterized in that: The Y-axis moving assembly (306) comprises two Y-axis polished rods (3061) and a Y-axis motor (3062), wherein the two Y-axis polished rods (3061) are symmetrically distributed front to back, and both ends of the Y-axis polished rods (3061) are rotatably connected to Y-axis seat bearings (3063), and the Y-axis seat bearings (3063) are fixedly connected to the bracket (100); the Y-axis motor (3062) is fixedly connected to the bracket (100), and the output shaft of the Y-axis motor (3062) is connected to a third synchronous motor. A step wheel (3064), one end of one of the Y-axis light rods (3061) is fixedly sleeved with a fourth synchronous wheel (3065), and the third synchronous wheel (3064) and the fourth synchronous wheel (3065) are connected via a second synchronous belt (3068); both ends of the Y-axis light rod (3061) are fixedly sleeved with a second pulley (3066), and the two second pulleys (3066) on the same side of the two Y-axis light rods (3061) are connected via a Y-axis synchronous belt (3067).

5. The variable-number stereoscopic vision shooting device based on CoreXY structure according to claim 4, characterized in that: Both ends of the X-axis slide bar (303) are provided with X-axis sliders (307), the two X-axis sliders (307) are respectively connected to the two X-axis synchronous belts (3057), and the two X-axis sliders (307) are respectively slidably matched with the two Y-axis smooth rods (3061).

6. The variable-number stereoscopic vision shooting device based on CoreXY structure according to claim 5, characterized in that: Both ends of the Y-axis slide bar (304) are provided with Y-axis sliders (308), the two Y-axis sliders (308) are respectively connected to two Y-axis synchronous belts (3067), and the two Y-axis sliders (308) are respectively slidably matched with two X-axis optical rods (3051).

7. The variable-number stereoscopic vision shooting device based on CoreXY structure according to claim 1, characterized in that: The cross slide block (301) is provided with an X-axis sliding hole (3011) and a Y-axis sliding hole (3012), and the X-axis sliding rod (303) and the Y-axis sliding rod (304) are respectively movable through the X-axis sliding hole (3011) and the Y-axis sliding hole (3012).

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