CN219798255U - Three-dimensional scanning device - Google Patents
Three-dimensional scanning device Download PDFInfo
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- CN219798255U CN219798255U CN202321246834.1U CN202321246834U CN219798255U CN 219798255 U CN219798255 U CN 219798255U CN 202321246834 U CN202321246834 U CN 202321246834U CN 219798255 U CN219798255 U CN 219798255U
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- dimensional scanning
- scanning device
- image acquisition
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- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a three-dimensional scanning device, which comprises a supporting platform, a rotating frame and a plurality of image acquisition devices, wherein the supporting platform is arranged on the rotating frame; the supporting platform comprises a fixed base, a fixed shaft vertically and fixedly installed on the fixed base, and a supporting plate arranged at the top of the fixed shaft and used for placing a scanned object. The rotating frame comprises a rotating sleeve coaxially and rotatably connected with the fixed shaft and a horizontal rocker arm horizontally and fixedly connected with the rotating sleeve, and a vertical support is arranged at the end part of the horizontal rocker arm. The image acquisition devices are mounted on the vertical support at different heights. The driving motor drives the rotary sleeve to rotate, so that the image acquisition device can be driven to rotate 360 degrees around a scanned object, and omnidirectional image acquisition is carried out. Compared with the prior art, the utility model has the advantages of lower manufacturing and maintenance cost, smaller occupied area, stronger adaptability and better scanning effect, and can be adjusted according to the height of the scanned object.
Description
Technical Field
The utility model belongs to the technical field of three-dimensional data acquisition equipment, and particularly relates to a three-dimensional scanning device.
Background
The three-dimensional scanning technology is a non-contact modeling work, and the most outstanding advantage is that the appearance data can be acquired without contacting an acquired object. The three-dimensional camera simultaneously shoots photos at different angles by utilizing two or more cameras, realizes three-dimensional reconstruction by an image matching technology, has the advantages of low price and simple and quick operation process, and is widely applied to the clothing fields of human body measurement, restoration of cultural relics, customized template generation, mannequin customization, clothing surface fit evaluation and the like. Meanwhile, in the cartoon industry, when the cartoon character is modeled, a vivid human body model can be obtained by scanning according to a human body three-dimensional scanner, so that time is saved and the model is more approximate to reality than manual creation.
However, most of the existing whole-body modeling three-dimensional scanning platforms are like an automatic acquisition system for photographs of human bodies and clothes for three-dimensional image modeling with a publication number of CN205537542U, a plurality of camera matrixes are directly arranged in a special sampling room at intervals around the whole body to realize scanning of objects to be detected, so that the occupied area is large, and the installation and later maintenance cost is high due to the fact that a large number of cameras are required to be arranged.
Disclosure of Invention
The utility model aims to provide a three-dimensional scanning device with low cost and small occupied area to solve the problems in the prior art.
The utility model is realized in the following way:
a three-dimensional scanning device, comprising: the image acquisition device comprises a supporting platform for placing a scanned object, a rotating frame rotationally connected with the supporting platform, and a plurality of image acquisition devices which are arranged on the rotating frame at different heights; the image acquisition device can rotate 360 degrees around the scanned object to acquire an omnibearing image.
Further, the supporting platform comprises a fixed base, a fixed shaft vertically and fixedly installed on the fixed base, and a supporting plate arranged on the top of the fixed shaft.
Further, the rotating frame comprises a rotating sleeve coaxially and rotatably connected with the fixed shaft, a horizontal rocker arm horizontally and fixedly connected with the rotating sleeve, a vertical support vertically arranged at the long arm end of the horizontal rocker arm and used for installing an image acquisition device, and a driving motor used for driving the rotating sleeve to rotate.
Further, the rotating frame also comprises a fluted disc coaxially and fixedly connected with the rotating sleeve and a pinion which is arranged on the output shaft of the driving motor and meshed with the fluted disc.
Further, two compacting plates are arranged on the upper side and the lower side of the fluted disc respectively, a plurality of compacting wheels are arranged on the compacting plates, and the compacting wheels are respectively pressed on the upper top surface and the lower bottom surface of the fluted disc, so that the fluted disc is always kept horizontal.
Further, the short arm end of the horizontal rocker arm is provided with a balancing weight to balance the gravity of the vertical support and the image acquisition device, so that the image acquisition device rotates more stably.
Further, the supporting plate is arranged on the top of the fixed shaft through a lifting mechanism.
Further, the image acquisition device arranged at the top of the vertical support is rotationally connected with the vertical support, so that the image acquisition device can downwards incline to adjust the sampling angle to a certain extent, and the top of the scanned object with different heights can be better subjected to image acquisition.
Further, the image acquisition device is a camera, and a light supplementing lamp is arranged beside the camera so as to improve acquisition quality.
Further, at least three supporting feet with adjustable height are uniformly arranged on the circumference of the bottom of the supporting platform.
The three-dimensional scanning device provided by the utility model has the beneficial effects that:
(1) The cost is low, the occupied area is small, the number of cameras is greatly saved on the premise of the same scanning precision, and the production and maintenance cost is lower.
(2) The safety is good, when carrying out three-dimensional scanning to the people, the people stands to the backup pad and can be better keeps the posture unchanged, compares the rotatory three-dimensional scanning device scanning effect of holding surface better, safer.
(3) The adaptability is strong, and the shooting angle of the supporting plate and the nodding camera can be freely adjusted according to the height of the scanned object, so that a better scanning effect is obtained.
(4) The stability is better, in the prior art, because the image acquisition device needs to scan around the side of the object to be acquired for one circle, unbalanced load exists naturally, that is to say, the image acquisition device is difficult to keep stability in the process of encircling the object to be measured for one circle, and whether the image acquisition device can keep high stability or not does not generate shake, and the shake does not have great influence on the quality of follow-up three-dimensional modeling and the required calculation force.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an overall structure of a three-dimensional scanning device according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of an installation mode of a rotating frame in a three-dimensional scanning device according to an embodiment of the present utility model;
fig. 3 is a cross-sectional view of a support platform in a three-dimensional scanning device according to an embodiment of the present utility model.
In the figure: the camera comprises a fixed base, a connecting plate, a pressing wheel, a fixed shaft, a supporting plate, a mounting boss, a supporting leg, a screw rod, a rubber pad, a rotating sleeve, a bearing, a horizontal rocker arm, a long arm, a short arm, a counterweight, a fluted disc, a bolt, a pinion, a driving motor, a camera, and a light supplementing lamp.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model provides a three-dimensional scanning device which comprises a supporting platform, a rotating frame rotationally connected with the supporting platform and a plurality of image acquisition devices arranged on the rotating frame at different heights, wherein the image acquisition devices can rotate 360 degrees around a scanned object so as to acquire an omnibearing image. Specific:
the support platform comprises a fixed base 1, a fixed shaft 2 and a support plate 3. The unable adjustment base 1 is annular aluminum alloy frame, and its bottom circumference evenly is equipped with four supporting legs 4, 4 upper portions of supporting legs are screw rod 401, screw rod 401 with unable adjustment base 1 bottom screw thread links to each other, through twisting the screw rod 401 can be right the supporting height of supporting legs 4 carries out the fine setting, thereby guarantees unable adjustment base 1 levelness, 4 bottoms of supporting legs still are equipped with the rubber pad, in order to improve unable adjustment base 1's shock attenuation and antiskid effect. The fixed axle 2 is vertically and fixedly installed in the middle of the fixed base 1, the supporting plate 3 is a round aluminum alloy plate with the radius being the same as that of the fixed base 1, an installation boss 301 is arranged at the bottom of the supporting plate 3, an installation hole matched with the fixed axle 2 is formed in the installation boss 301, the supporting plate 3 is detachably and fixedly installed at the top of the fixed axle 2 and is vertical to the fixed axle 2 through the installation boss 301, the top surface of the supporting plate 3 is used for placing a scanned object, when a person performs three-dimensional scanning, the person stands on the supporting plate 3 to keep the posture unchanged better, and compared with a three-dimensional scanning device with a rotating supporting surface, the three-dimensional scanning device is safer.
The rotating frame comprises a rotating sleeve 5, a horizontal rocker arm 6, a vertical support 10, a fluted disc 7, a pinion 8 and a driving motor 9. The rotary sleeve 5 is coaxially and rotatably connected with the fixed shaft 2 through a bearing 501; the horizontal rocker arm 6 is horizontally arranged between the fixed base 1 and the supporting plate 3 and fixedly connected with the outer wall of the rotary sleeve 5, one end of the horizontal rocker arm 6 is longer than the outer diameter (i.e. the long arm 601) of the fixed base 1, the vertical support 10 is used for installing an image acquisition device, and the vertical support 10 is fixedly installed at the end part of the long arm 601 of the horizontal rocker arm 6. The fluted disc 7 is fixedly connected with the rotary sleeve 5 coaxially through a bolt 701, and the pinion 8 is arranged on the output shaft of the driving motor 9 and meshed with the fluted disc 7. The driving motor 9 is a stepping motor, so as to ensure accurate control of the rotation angle, and the rotating sleeve 5 can be driven to rotate by the stepping motor, so that the image acquisition device on the vertical support 10 is driven to rotate around the object to be detected on the support plate 3.
In order to improve rotation stability, as a preferred embodiment, the fixing base 1 is further fixedly provided with two circular compacting plates 102 through an upper group of connecting plates 101 and a lower group of connecting plates 101, the compacting plates 102 are respectively arranged on the upper side and the lower side of the fluted disc 7, wherein the compacting plates 102 above the fluted disc are in clearance fit with the rotating sleeve 5, a plurality of compacting wheels 103 are symmetrically arranged on the upper compacting plate 102 and the lower compacting plate 102, the compacting wheels 103 are respectively pressed on the upper top surface and the lower bottom surface of the fluted disc 7, and the fluted disc 7 is prevented from tilting and raising on the premise that normal rotation of the fluted disc 7 is not affected, so that the fluted disc 7 is always kept horizontal.
Since the long arm 601 of the horizontal rocker arm 6 is long, when the vertical support 10 and the image capturing device are mounted on the end of the long arm 601 of the horizontal rocker arm 6, the center of gravity of the device is deviated, and in order to prevent the horizontal rocker arm 6 from unstably shaking during rotation, in this embodiment, the length of the other end of the horizontal rocker arm 6 is shorter than the inner diameter of the fixed base 1 (i.e. the short arm 602), and the end of the short arm 602 is provided with a balancing weight 603. And the rocker arm is a hollow square steel tube, wherein the cross section size of the short arm 602 is slightly smaller than that of the long arm 601, the short arm 602 is coaxial with the short arm 602 and is connected with the long arm 601 in a sliding manner, so that the distance between the balancing weight 603 and the axis of the rotary sleeve can be adjusted by the gravity of the vertical support 10 and the image acquisition device, the gravity center is balanced better, and the stability of the image acquisition device when rotating around a scanned object is improved.
The image acquisition device is a common camera, and has six total, including five horizontal cameras 11 and one nodding camera 12, horizontal camera 11 is evenly fixed on the vertical support 10 with certain interval, and the camera lens is just right to fixed axle 2's axis is perpendicular, nodding camera 12 rotates through the hinge and sets up vertical support 10 top, through the hinge can be adjusted freely nodding camera 12 downward sloping angle to better carries out image acquisition by the top of co-altitude scanning object not. And further, the camera is also provided with a light supplementing lamp 13 beside to ensure that the quality of the acquired image is high and improve the scanning precision and effect. Compared with the prior art, the technical scheme does not need professional cameras, does not need a large number of cameras, is lower in cost, is unchanged in focal length of each camera, is faster in modeling splicing speed, can increase the number of samples by increasing the number of cameras on the vertical support 10 and photographing frequency, and obtains higher scanning precision.
As a preferred embodiment, as shown in fig. 3, the supporting plate 3 is installed on the top of the fixed shaft 2 through a lifting mechanism, so that the supporting plate 3 can be adjusted up and down according to the height of the measured object, thereby obtaining a whole body graph, and enabling the utility model to perform effective data acquisition for the measured objects with different heights; the type of the lifting mechanism is not limited, and may be selected as a hydraulic lever in consideration of actual bearing capacity and installation space.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. A three-dimensional scanning device, characterized in that: the device comprises a supporting platform for placing a scanned object, a rotating frame rotationally connected with the supporting platform, and a plurality of image acquisition devices which are arranged on the rotating frame at different heights; the image acquisition device can rotate 360 degrees around the scanned object to acquire an omnibearing image.
2. A three-dimensional scanning device according to claim 1, wherein: the supporting platform comprises a fixed base, a fixed shaft vertically and fixedly installed on the fixed base and a supporting plate arranged on the top of the fixed shaft.
3. A three-dimensional scanning device according to claim 2, wherein: the rotating frame comprises a rotating sleeve, a horizontal rocker arm, a vertical support and a driving motor, wherein the rotating sleeve is coaxially and rotatably connected with the fixed shaft, the horizontal rocker arm is horizontally and fixedly connected with the rotating sleeve, the vertical support is vertically arranged at the long arm end of the horizontal rocker arm and used for installing an image acquisition device, and the driving motor is used for driving the rotating sleeve to rotate.
4. A three-dimensional scanning device according to claim 3, wherein: the rotary frame also comprises a fluted disc coaxially and fixedly connected with the rotary sleeve and a pinion which is arranged on the output shaft of the driving motor and meshed with the fluted disc.
5. A three-dimensional scanning device according to claim 4, wherein: the upper side and the lower side of the fluted disc are respectively provided with two compacting plates, a plurality of compacting wheels are arranged on the compacting plates, and the compacting wheels are respectively pressed on the upper top surface and the lower bottom surface of the fluted disc.
6. A three-dimensional scanning device according to claim 3, wherein: and a balancing weight is arranged at the short arm end of the horizontal rocker arm.
7. A three-dimensional scanning device according to claim 4, wherein: the supporting plate is arranged at the top of the fixed shaft through the lifting mechanism.
8. A three-dimensional scanning device according to claim 3, wherein: the image acquisition device arranged at the top of the vertical support is rotationally connected with the vertical support.
9. A three-dimensional scanning device according to claim 1, wherein: the image acquisition device is a camera, and a light supplementing lamp is arranged beside the camera so as to improve acquisition quality.
10. A three-dimensional scanning device according to claim 1, wherein: at least three supporting feet with adjustable height are uniformly arranged on the circumference of the bottom of the supporting platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321246834.1U CN219798255U (en) | 2023-05-22 | 2023-05-22 | Three-dimensional scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321246834.1U CN219798255U (en) | 2023-05-22 | 2023-05-22 | Three-dimensional scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219798255U true CN219798255U (en) | 2023-10-03 |
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ID=88175438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321246834.1U Active CN219798255U (en) | 2023-05-22 | 2023-05-22 | Three-dimensional scanning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219798255U (en) |
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2023
- 2023-05-22 CN CN202321246834.1U patent/CN219798255U/en active Active
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