CN218935924U

CN218935924U - Visual image acquisition platform

Info

Publication number: CN218935924U
Application number: CN202221087058.0U
Authority: CN
Inventors: 钟铭恩; 许平平; 赵昱廷; 吴志华; 谭佳威
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2023-04-28
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a visual image acquisition platform, which comprises a workbench main body, a workbench plate, an inclination mechanism, a camera fixing mechanism and a camera, wherein the workbench main body is provided with a camera; the workbench main body comprises a pedestal and supporting legs, wherein the pedestal is provided with a guide rail groove around the periphery of the pedestal; the workbench plate is arranged on the inner side of the guide rail groove, and one end of the workbench plate is hinged with the pedestal; the tilting mechanism is fixed on the pedestal and comprises a push rod which is connected below the working table plate; the camera fixing mechanism comprises a sliding block, and the sliding block is arranged in the guide rail groove and is fixed by a limiting structure; the camera is mounted on a camera fixing mechanism. The workbench plate can be inclined, and the camera can wind a circle of the workbench for bearing the workpiece needing to be picked, so that the image is collected in multiple directions.

Description

Visual image acquisition platform

Technical Field

The utility model relates to the field of industrial vision, in particular to a visual image acquisition platform.

Background

Algorithms in the industrial vision field are important, but a good working environment is set up for image acquisition, wherein the conventional rack is usually acquired from top to bottom or from front to back, and the positions of the conventional rack are relatively fixed, and the rack is limited in that the conventional rack is usually only suitable for planar image acquisition, and when the acquired images relate to depth information, a plurality of cameras are required to be set up, so that the cost is not easy to control.

The utility model patent CN202120890471.X discloses a structural light detection device capable of being adjusted in all directions, which consists of an annular sliding rail, a round platform base, a projector adjusting device and a device. The whole detection device is circular, and the annular sliding rail is fixed with the circular truncated cone base through screws; placing a workpiece to be measured on an objective table in the middle of a base of the round table; the projector and the camera are fixed on the brackets of the projector adjusting device and the camera adjusting device through the knob and the screw, and the two devices are three-degree-of-freedom adjusting devices, so that the positions of the two devices can be changed on the annular sliding rail. However, the object stage of the device is fixed and can not be inclined, and the image can not be acquired from multiple directions.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a visual image acquisition platform, wherein a workbench plate of the visual image acquisition platform can be inclined, and a camera can wind a circle of the workbench bearing a workpiece needing to acquire images, so that multidirectional image acquisition is realized.

In order to solve the technical problems, the technical solution of the utility model is as follows: a visual image acquisition platform comprises a workbench main body, a workbench plate, a tilting mechanism, a camera fixing mechanism and a camera; the workbench main body comprises a pedestal and supporting legs, wherein the pedestal is provided with a guide rail groove around the periphery of the pedestal; the workbench plate is arranged on the inner side of the guide rail groove, and one end of the workbench plate is hinged with the pedestal; the tilting mechanism is fixed on the pedestal and comprises a push rod which is connected below the working table plate; the camera fixing mechanism comprises a sliding block, and the sliding block is arranged in the guide rail groove and is fixed by a limiting structure; the camera is mounted on a camera fixing mechanism.

Preferably, the pedestal is provided with a mounting hole, and the tilting mechanism is arranged below the mounting hole; the tilting mechanism further comprises a shell, a rocker, a worm wheel and a cylindrical cam, wherein the rocker is arranged outside the shell and connected with the worm inside the shell, the worm is meshed with the worm wheel, the cylindrical cam is mounted in the middle of the worm wheel and connected with the push rod, and the push rod penetrates through the mounting hole and is connected with the workbench plate.

Preferably, a dial is arranged at the joint of the rocker and the shell.

Preferably, the limit structure is that a side slot is arranged on the side surface of the pedestal, the side slot is communicated with the guide rail slot, and the slide block arranged in the guide rail slot is locked from the side slot through a positioning bolt.

Preferably, the stand is provided with an opening at which one end of the table plate is hinged to the stand by a hinge.

Preferably, a baffle is arranged at one end of the working table plate hinged with the pedestal.

Preferably, the cross section of the sliding block is in a convex shape, and the cross section of the guide rail groove is matched with the cross section of the guide rail groove; the guide rail groove is provided with a cross groove which is convenient for the installation or the disassembly of the sliding block.

Preferably, the camera fixing mechanism comprises a clamping device, the clamping device comprises a clamping groove, the clamping groove is U-shaped and comprises two opposite clamping walls and a fixing wall, a plurality of grooves with inclined angles are formed in one clamping wall, and a camera positioning structure is arranged on the other clamping wall; the camera is placed between the two clamping walls and is fixed on one of the grooves through the camera positioning structure.

Preferably, the camera fixing mechanism further comprises a vertical rod and a connector, the sliding block is fixed at the lower end of the vertical rod, and the connector is sleeved on the vertical rod and is fixed by the first fixing structure; the clamping device further comprises a connecting rod, one end of the connecting rod is connected with the fixed wall of the clamping groove, and the other end of the connecting rod penetrates through the connector and is fixed by a second fixing structure.

Preferably, the camera positioning structure comprises a second bolt and a gasket, the camera is arranged between the two clamping walls and is fixed on one of the grooves through the second bolt, and the gasket is arranged between the camera and the second bolt.

The technical scheme of the utility model has at least the following beneficial effects:

1. the workbench main body is hinged with the workbench plate, and the workbench plate can be inclined at a certain angle, so that the workbench is beneficial to multi-azimuth image acquisition;

2. the pedestal of the workbench main body is provided with the guide rail groove around the periphery of the workbench main body, and the camera fixing mechanism is slidably arranged in the guide rail groove and is fixed by the limiting structure, so that the camera fixed by the camera fixing mechanism can be wound around the workbench for bearing a workpiece to be subjected to image acquisition, and the camera has a plurality of different orientations relative to the workpiece, and image acquisition is more comprehensive;

3. the clamping device of the camera fixing mechanism is provided with a plurality of grooves with inclined angles, so that the camera has a plurality of selectable angle adjustments, and the acquisition of depth information of an image can be realized.

Drawings

FIG. 1 is a schematic view of the structure of the work table of the present utility model in an inclined state;

FIG. 2 is a schematic view of the structure of the work bench in the flat state of the utility model;

FIG. 3 is a schematic view of the pedestal structure of the present utility model;

FIG. 4 is a schematic view of a clamping groove structure of the present utility model;

FIG. 5 is a schematic view of a camera fixing mechanism according to the present utility model;

FIG. 6 is a schematic view of the internal structure of the tilting mechanism of the present utility model;

fig. 7 is a schematic view of the cylindrical cam and push rod structure of the present utility model.

In the figure: 1-a workbench main body; 11-a pedestal; 12-supporting legs; 13-a guide rail groove; 131- "cross" shaped slot; 14-slotting on the side surface; 15-opening; 16-mounting holes; 2-a working table plate; 21-a baffle; 3-tilting mechanism; 31-a housing; 32-rocker; 33-worm; 34-worm gear; 35-a cylindrical cam; 36-push rod; 37-dial; 4-a camera fixing mechanism; 41-a slider; 42-positioning bolts; 43-vertical bars; a 44-connector; 45-clamping means; 451-a clamping groove; 452-second bolt; 453-a gasket; 454-connecting rods; 455-first groove; 456-a second groove; 457-a third recess; 46-a first bolt; 5-camera; 6-through holes.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the specific examples.

The utility model discloses a visual image acquisition platform, which is shown in fig. 1 and is a preferred embodiment of the utility model, and comprises a workbench main body 1, a workbench plate 2, a tilting mechanism 3, a camera fixing mechanism 4 and a camera 5, wherein the camera 5 is arranged on the camera fixing mechanism 4.

The table main body 1 includes a pedestal 11 and support legs 12. The pedestal 11 of the present embodiment is rectangular, but may be circular. The stand 11 is provided with a guide groove 13 around its periphery, the guide groove 13 being used to mount the camera fixing mechanism 4 so that it can be wound around the table. The camera fixing mechanism 4 includes a slider 41, and the slider 41 is mounted on the rail groove 13 and fixed by a stopper structure. Further, the limiting structure may be: the side of the base 11 is provided with a side slot 14, the side slot 14 communicates with the guide rail slot 13, and the camera fixing mechanism 4 can be fixed to the base 11 by locking a slider 41 installed in the guide rail slot 13 from the side slot 14 by a positioning bolt 42.

The table plate 2 is disposed inside the rail groove 13, and one end thereof is hinged to the pedestal 11. Specifically, to facilitate the mounting of the work table 2 on the stand 11, an opening 15 may be provided in the stand 11, and one end of the work table 2 is hinged to the stand 11 at the opening 15 by a hinge. A tilting mechanism 3 capable of lifting one end of the working table plate 2 is connected below the working table plate 2. Further, a tilting mechanism 3 may be connected to each of the left and right sides of the table 2. The baffle 21 is arranged at the end of the working table plate 2 hinged with the pedestal 11, so that the workpiece placed on the working table plate 2 can be prevented from sliding off after the working table plate 2 is inclined.

The tilting mechanism 3 is fixed to the stand 11, and a mounting hole 16 may be provided in the stand 11 to mount the tilting mechanism 3. Further, the tilting mechanism 3 includes a housing 31, a rocker 32, a worm 33, a worm wheel 34, a cylindrical cam 35 and a push rod 36, the rocker 32 is disposed outside the housing 31, the rocker 32 is connected with the worm 33 inside the housing 31, the worm 223 is meshed with the worm wheel 34, the cylindrical cam 35 is mounted in the middle of the worm wheel 34, the cylindrical cam 35 is connected with the push rod 36, and the push rod 36 is connected with the table 2 through the mounting hole 16, and can be connected by a pin. When the rocking rod 32 is manually rocked, the worm 33 is driven to rotate and then is transmitted to the worm wheel 34, the worm wheel 34 drives the cylindrical cam 35 to rotate, and the cylindrical cam 35 is further transmitted to the push rod 36, so that the push rod 36 can reciprocate up and down, and the working table plate 2 is pushed to incline by a certain angle; meanwhile, due to the self-locking property of the worm and gear transmission, the inclination stability of the workbench plate 2 is ensured. Further, a dial 37 is provided at the junction of the rocker 32 and the housing 31 for recording the inclination angle.

The camera fixing mechanism 4 includes a slider 41, and may further include a vertical rod 43, a connector 44, and a clamping device 45. The slide 41 is fixed at the lower end of the vertical rod 43, and is provided with a hole matched with the positioning bolt 42. Further, the cross section of the slider 41 of the present embodiment is in a "convex" shape, and the cross section of the guide rail groove 13 is matched with that of the slider, so that the slider 41 can slide in the guide rail groove 13. To facilitate the installation of the slider 41 into the rail groove 13 or the removal from the rail groove 13, the rail groove 13 is also provided with a cross groove 131. When the camera fixing mechanism 4 is installed, the cross-shaped groove 131 is clamped into the guide rail groove 13, so that the camera fixing mechanism 4 can slide along the guide rail around the workbench for one circle along the guide rail. The cross groove 131 is provided at a corner of the rectangular pedestal in the present embodiment to prevent the slide block 41 from accidentally falling off when sliding in the guide rail groove 13. Further, the vertical rod 43 may be a single rod or may be formed by connecting a plurality of rods. In this embodiment, the vertical rod 43 is formed by a hollow tube having an internal thread at one end and a hollow tube having an external thread at one end, and thus the vertical rod 43 can be screwed to adjust the length of the screwed portion. The connector 44 is sleeved on the vertical rod 43, can move up and down along the vertical rod 43, and can be fixed by a first bolt 46. The clamping device 45 includes a clamping groove 451, a second bolt 452, a washer 453, and a connecting rod 454. The clamping groove 451 is U-shaped and comprises two opposite clamping walls and a fixing wall, and the camera 5 is arranged between the two clamping walls and fixed by a second bolt 452. Preferably, a spacer 453 is provided between the camera 5 and the second bolt 452 to protect the camera 5. One end of the connecting rod 454 is connected to the fixing wall of the clamping groove 451, and the other end thereof passes through the connector 44 and can be fixed by bolts. Further, the clamping groove 451 is provided with a plurality of grooves with inclination angles on the clamping wall at one side of the camera 5, and the grooves are alternately carved and have different depths and are used for positioning the camera 5 at different clamping angles. The sides of the groove can be stressed, and the gasket 453 and the second bolt 452 are matched, so that the camera 5 can be clamped stably, and a plurality of optional orientations are provided. The grooves with multiple inclination angles in this embodiment are provided with three: a first groove 455, a second groove 456, and a third groove 457 at 20 °, -20 °, 0 ° (positive rotation angle around counter-clockwise with respect to the positive x-axis in a cartesian coordinate system), respectively. The first grooves 455 and the second grooves 456 are staggered and have different depths, so that the camera 5 has three options of forward, backward and downward directions when fixed.

The pedestal 11 and the table plate 2 may be provided with a plurality of through holes 6 as necessary, so that unnecessary weight of the table can be reduced. When the work table 2 is provided with a plurality of through holes 6, a plate may be laid on the work table 2 for placing a work piece.

When the utility model works, a workpiece is placed on the working table plate 2, the workpiece can be fixed on the working table plate 2 by means of a sucker and the like, or is leaned against the baffle plate 21, the rocker 32 can be rocked according to the image acquisition requirement, and the tilting mechanism 3 pushes the working table plate 2, so that the working table plate 2 rotates around a hinge for a certain angle to be in a tilting state; meanwhile, the camera fixing mechanism 4 can wind the workbench along the guide rail groove 13 for one circle along with the camera 5; furthermore, the camera fixing mechanism 4 can also be provided with a plurality of optional angle adjustments by means of grooves. Through the arrangement, the camera 5 has a plurality of different orientations relative to the workpiece, and more comprehensive multi-orientation image acquisition is realized.

The above description is only of the preferred embodiments of the present utility model, and should not be taken as limiting the technical scope of the present utility model, but all changes and modifications that come within the scope of the utility model as defined by the claims and the specification are to be embraced by the utility model.

Claims

1. The utility model provides a vision image acquisition platform which characterized in that: comprises a workbench main body, a workbench plate, a tilting mechanism, a camera fixing mechanism and a camera; the workbench main body comprises a pedestal and supporting legs, wherein the pedestal is provided with a guide rail groove around the periphery of the pedestal; the workbench plate is arranged on the inner side of the guide rail groove, and one end of the workbench plate is hinged with the pedestal; the tilting mechanism is fixed on the pedestal and comprises a push rod which is connected below the working table plate; the camera fixing mechanism comprises a sliding block, and the sliding block is arranged in the guide rail groove and is fixed by a limiting structure; the camera is mounted on a camera fixing mechanism.

2. A visual image acquisition platform according to claim 1, wherein: the pedestal is provided with a mounting hole, and the tilting mechanism is arranged below the mounting hole; the tilting mechanism further comprises a shell, a rocker, a worm wheel and a cylindrical cam, wherein the rocker is arranged outside the shell and connected with the worm inside the shell, the worm is meshed with the worm wheel, the cylindrical cam is mounted in the middle of the worm wheel and connected with the push rod, and the push rod penetrates through the mounting hole and is connected with the workbench plate.

3. A visual image acquisition platform according to claim 2, wherein: and a dial is arranged at the joint of the rocker and the shell.

4. A visual image acquisition platform according to claim 1, wherein: the limiting structure is characterized in that a side surface groove is formed in the side surface of the pedestal, the side surface groove is communicated with the guide rail groove, and a sliding block arranged in the guide rail groove is locked from the side surface groove through a positioning bolt.

5. A visual image acquisition platform according to claim 1, wherein: the pedestal is provided with an opening, and one end of the working table plate is hinged with the pedestal at the opening through a hinge.

6. A visual image acquisition platform according to claim 1, wherein: and a baffle is arranged at one end of the working table plate hinged with the pedestal.

7. A visual image acquisition platform according to claim 1, wherein: the section of the sliding block is in a convex shape, and the section of the guide rail groove is matched with the section of the guide rail groove; the guide rail groove is provided with a cross groove which is convenient for the installation or the disassembly of the sliding block.

8. A visual image acquisition platform according to claim 1, wherein: the camera fixing mechanism comprises a clamping device, wherein the clamping device comprises a clamping groove which is U-shaped and comprises two opposite clamping walls and a fixing wall, wherein one clamping wall is provided with a plurality of grooves with inclined angles, and the other clamping wall is provided with a camera positioning structure; the camera is placed between the two clamping walls and is fixed on one of the grooves through the camera positioning structure.

9. A visual image acquisition platform according to claim 8, wherein: the camera fixing mechanism further comprises a vertical rod and a connector, the sliding block is fixed at the lower end of the vertical rod, and the connector is sleeved on the vertical rod and is fixed by a first fixing structure; the clamping device further comprises a connecting rod, one end of the connecting rod is connected with the fixed wall of the clamping groove, and the other end of the connecting rod penetrates through the connector and is fixed by a second fixing structure.

10. A visual image acquisition platform according to claim 8, wherein: the camera positioning structure comprises a second bolt and a gasket, the camera is arranged between the two clamping walls and is fixed on one of the grooves through the second bolt, and the gasket is arranged between the camera and the second bolt.