Digital three-dimensional data acquisition device

Abstract

The invention relates to a digital three-dimensional data acquisition device which comprises a base part, a supporting part and a scanning camera, the supporting part is in running fit with the base part, and the scanning camera is configured to rotate around a fixed point position on the base part; the first traction part and the scanning camera are configured to rotate coaxially and relatively, and a synchronous magnetic attraction relation is configured between the first traction part and the scanning camera; and the second traction part and the supporting part are configured to rotate coaxially and relatively, and a synchronous magnetic attraction relation is configured between the second traction part and the supporting part. Through cooperation of the first traction part and the second traction part, the scanning camera and the supporting part can be driven to move in a non-contact mode, so that relative movement between the scanning camera and the cultural relics is kept, and the stable scanning process is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of three-dimensional data acquisition equipment, in particular to a digital three-dimensional data acquisition device. Background Art

[0002] At present, for a large number of cultural relics that are being corroded and oxidized, their appearance is often displayed on the computer by collecting three-dimensional data, so that their original appearance can be preserved as much as possible on the computer at this stage. In terms of appreciation and research, scholars, enthusiasts and collectors can view and study cultural relics conveniently and quickly at any place and at any time through the Internet, and will not cause any damage to the cultural relics. Therefore, the subsequent common display method is to display them in three-dimensional stereoscopic modeling;

[0003] Based on the above, since it is necessary to ensure that the scanned object and the acquisition device maintain a relatively stable and smooth relative movement during the three-dimensional scanning process, in the prior art, when performing three-dimensional scanning of cultural relics, the cultural relics are usually placed in a fixed position, and the three-dimensional data is collected by moving the scanning camera around them, or the cultural relics are placed on a turntable, the horizontal position of the scanning camera is fixed, and the three-dimensional data is collected by rotating the turntable, and the scanning camera only needs to adjust the longitudinal shooting angle. However, in these two methods, the scanning camera and the turntable will more or less form jitters during the process of configuring the driving force for movement, thereby affecting the scanning process. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In order to solve the problems in the above background technology, the present invention provides the following technical solutions:

[0006] A digital three-dimensional data acquisition device, comprising:

[0007] A base, a support, and a scanning camera, wherein the support is rotatably matched with the base, and the scanning camera is configured to rotate around a fixed point on the base;

[0008] A first traction part is configured to rotate coaxially with the scanning camera, and a synchronous magnetic attraction relationship is configured between the first traction part and the scanning camera;

[0009] The second traction part is configured to rotate coaxially with the support part, and a synchronous magnetic attraction relationship is configured between the second traction part and the support part.

[0010] As a preferred technical solution of the digital three-dimensional data acquisition device, an annular frame is constructed on the base, and the first traction part is annular and is rotationally matched with the inner side of the annular frame.

[0011] As a preferred technical solution of the digital three-dimensional data acquisition device, a first magnet and a second magnet are respectively arranged on the second traction part and the support part, and are configured to be close to each other.

[0012] As a preferred technical solution of the digital three-dimensional data acquisition device, the support part is configured to have adjustable transparency, the second magnet is configured to be longitudinally movable on the support part, and the transparency of the support part changes according to the longitudinal movement of the second magnet.

[0013] As a preferred technical solution of the digital three-dimensional data acquisition device, a liquid storage cavity is arranged in the support part, and a colored liquid is arranged therein. The colored liquid horizontally spreads throughout the support part or releases the horizontal spread during the movement process, and the colored liquid moves through the second magnet.

[0014] As a preferred technical solution of the digital three-dimensional data acquisition device, the liquid storage cavity includes an upper chamber and a lower chamber that communicate with each other. The upper chamber horizontally spreads throughout the support part, and the second magnet forms one side wall of the lower chamber.

[0015] As a preferred technical solution of the digital three-dimensional data acquisition device, the height of the upper chamber gradually increases from the center to the periphery.

[0016] As a preferred technical solution of the digital three-dimensional data acquisition device, the second magnet is slidably matched with the support part, and a spring assembly is connected between the second magnet and the support part. The second traction part is configured to be longitudinally movable.

[0017] As a preferred technical solution of the digital three-dimensional data acquisition device, a rotating column is rotatably arranged on the base. The second traction part is longitudinally slidably matched with the rotation. A driving element is arranged on the base, and is configured to apply longitudinal force to the second traction part.

[0018] The digital three-dimensional data acquisition device provided by the present invention has the following beneficial effects:

[0019] 1. Through the cooperation of the first traction part and the second traction part, the present invention can respectively drive the activities of the scanning camera and the support part in a non-contact manner, so as to maintain the relative movement between the scanning camera and the cultural relic, and achieve a stable scanning process.

[0020] 2. Through the design of the liquid storage cavity and in cooperation with the magnetic traction effect, the present invention can control the movement of the colored liquid, so as to achieve the effect of changing the transparency of the support part in a non-contact manner, and thus can better assist the scanning process. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0022] Figure 1 Is a perspective view of the first embodiment of the present invention.

[0023] Figure 2 Regarding Figure 1 Is a top view.

[0024] Figure 3 Regarding Figure 1 Is a display diagram of the structure shown in part of

[0025] Figure 4 Regarding Figure 3 Is a display diagram of the structure shown in part of

[0026] Figure 5 Regarding Figure 3 Is a display diagram of another part of the structure shown in

[0027] Figure 6 Regarding Figure 3 Is a formal perspective view of part of the structure and a sectional view of part of the structure.

[0028] Figure 7 Is a schematic diagram of part of the structure and a sectional view of part of the structure in the second embodiment of the present invention.

[0029] Figure 8 Is another sectional view of part of the structure in the second embodiment of the present invention.

[0030] Reference Signs:

[0031] 1, base; 101, annular frame; 2, first drive motor; 3, second drive motor; 4, first traction part; 5, second traction part; 6, first magnet; 7, second magnet; 8, spring assembly; 9, liquid storage cavity; 901, upper chamber; 902, lower chamber; 10, rotating column; 11, automatic push rod; 12, connecting frame; 13, pressure relief cavity; 14, piston; 15, roller; 16, scanning camera; 17, support part. Detailed Description of the Invention

[0032] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be made in conjunction with the drawings in the specification.

[0033] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways different from those described herein. Persons skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0034] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that exclude each other with other embodiments.

[0035] Thirdly, the present invention is described in detail in conjunction with schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0036] Embodiment 1

[0037] Referring to Figures 1-6 , which is the first embodiment of the present invention. This embodiment provides a digital three-dimensional data acquisition device, including the following parts:

[0038] A machine table, an operation computer, and a frame fixed integrally with the machine table. The operation computer is arranged on the machine table for easy operation. Hereinafter, it will be uniformly abbreviated as the base 1.

[0039] A support part 17 for placing cultural relics and a scanning camera 16 for collecting three-dimensional data. Specifically, the support part 17 is rotationally engaged with the base 1. As shown in the Figure 6 viewpoint, rollers 15 are arranged in an array on the base 1. The support part 17 is circular, and its circumferential side is in rolling engagement with the rollers 15, so as to achieve stable rotation on the base 1. The scanning camera 16 is configured to rotate around a fixed point position on the base 1. Specifically, a connecting frame 12 is rotatably connected to the base 1, and the scanning camera 16 is fixed on the connecting frame 12 to keep the scanning camera 16 capable of performing longitudinal arc swing around the center of the support part 17, thereby adjusting the longitudinal angle of scanning.

[0040] A first traction part 4 is rotatably arranged on the base 1, and the rotation axis is the same as the rotation axis of the connecting frame 12. A synchronous magnetic attraction relationship is configured between the first traction part 4 and the scanning camera 16. Specifically, synchronous magnets can be configured on both of them. Through magnetic attraction, when the first traction part 4 rotates, the connecting frame 12 rotates synchronously, realizing the swing of the scanning camera 16.

[0041] The second traction part 5 is rotatably arranged on the base, and the rotation axis is the same as that of the support part 17. The second traction part 5 and the support part 17 are still configured in a synchronous magnetic attraction relationship;

[0042] In the process of realizing the scanning of cultural relics in the present invention, the cultural relic is placed at the central position on the support part 17. By applying a rotational driving force to the second traction part 5, the cultural relic can be rotated, so that the cultural relic can be scanned in all directions around it. By applying a driving force to the first traction part 4, the requirement for changing the longitudinal shooting angle of the scanning camera 16 during the scanning process can be met; compared with the prior art, during the rotation of the support part 17 and the rotation of the scanning camera 16, when the driving force is applied, the force-applying element does not need to directly contact the support part 17 and the connecting frame 12, thereby ensuring the stability during the relative movement process and ensuring the scanning quality.

[0043] Further, for the rotation mode of the first traction part 4, refer to Figures 1-4 , a circular ring frame 101 is constructed on the base 1. The first traction part 4 is in a circular shape, and its size is consistent with that of the circular ring frame 101. The first traction part 4 is rotationally matched with the inner side of the circular ring frame 101. A first driving motor 2 is fixedly arranged on the base 1. Teeth are constructed on the inner side of the first traction part 4. A gear meshing with the teeth is arranged on the first driving motor 2, so as to be in transmission cooperation with the first traction part 4 to realize the rotation of the first traction part 4.

[0044] Further, refer to Figure 3 , Figure 5 and Figure 6 , regarding the rotational configuration of the second traction part 5, specifically, a rotating column 10 is rotatably arranged on the base 1. The second traction part 5 is arranged on the rotating column 10. A second driving motor 3 is also arranged on the base 1 and is in transmission cooperation with the rotating column 10, so as to realize the driving of the rotation process of the second traction part 5. First magnets 6 and second magnets 7 are respectively arranged on the second traction part 5 and the support part 17, and are configured to be close to each other, so as to maintain attraction, so that when the second traction part 5 rotates, the support part 17 is driven to rotate through magnetic attraction.

[0045] Embodiment 2

[0046] This embodiment achieves another technical effect based on Embodiment 1. Specifically, during the actual 3D scanning process, there are certain requirements for the light in the scanning environment. Generally speaking, it is most appropriate for the light to be soft, without the interference of reflection and without the phenomenon of unclear shooting due to insufficient lighting. However, in places with relatively high brightness or strong supplementary light, reflection is likely to occur on the placement surface of cultural relics. On the contrary, when the supplementary light is weak, appropriate reflection is required on the placement surface to ensure the required brightness. In the present invention, the support surface of the support portion 17 is configured in a form with adjustable transparency, and the second magnet 7 is configured to be longitudinally movable on the support portion 17. The transparency of the support portion 17 is changed by the longitudinal movement of the second magnet 7;

[0047] Based on the above, by controlling the longitudinal movement of the second magnet 7, the change in transparency on the support portion 17 can be achieved. For example, when reflective conditions are required on the support portion 17, it can be kept non-transparent. When no reflection is needed, the support portion 17 is kept transparent so that light can directly pass through the support portion 17 and thus will not be reflected upward to affect the scanning.

[0048] Furthermore, regarding the adjustment of the transparency of the support portion 17, specifically, referring to Figure 7 and Figure 8 , the support portion 17 is made of a transparent material and is provided with a liquid storage cavity 9 inside. There is a colored liquid in the liquid storage cavity 9. The colored liquid can be a white oil liquid. By constructing the shape of the liquid storage cavity 9, the colored liquid can spread horizontally throughout the support portion 17 during the movement process, making the support portion 17 non-transmissive, thereby achieving a reflective effect. At the same time, the colored liquid can also be removed from the horizontal spread, keeping the support portion 17 transparent, thereby meeting the light transmission requirements. The colored liquid moves correspondingly through the movement of the second magnet 7.

[0049] Furthermore, referring to Figure 7 , the liquid storage cavity 9 includes a connected upper chamber 901 and a lower chamber 902. The upper chamber 901 is horizontally laid throughout the support portion 17, and the bottom of the lower chamber 902 extends to the outside of the support portion 17. The second magnet 7 longitudinally slides and cooperates with the inner cavity wall of the lower chamber 902 on the support portion 17, thus forming the bottom of the lower chamber 902 of the lower chamber 902 without affecting the horizontal drive of the support portion 17. When the second magnet 7 moves upward on the support portion 17, the colored liquid is squeezed into the upper chamber 901, thereby keeping the support portion 17 non-transmissive in the vertical direction. When the second magnet 7 moves down to the bottommost position, the colored liquid falls into the lower chamber 902 to keep the support portion 17 in a transparent structure; here, to maintain the pressure balance in the upper chamber 901, a pressure relief chamber 13 is also constructed at the top of the upper chamber 901. It has a cylinder structure and is connected to the outside at the top. A piston 14 is arranged in the pressure relief chamber 13 to protect the oil liquid in the chamber;

[0050] Furthermore, referring toFigure 7 A spring assembly 8 is connected between the second magnet 7 and the support portion 17, so that the second magnet 7 is located at a fixed position under normal conditions. The second traction portion 5 is in longitudinal sliding fit with the rotating column 10. For example, spline connection can be adopted, so that the second traction portion 5 can move longitudinally on the rotating column 10 to control the movement of the first magnet 6. When the first magnet 6 moves upward closer to the second magnet 7, the attraction force is greater, and the second magnet 7 will break free from the elastic force and move downward, causing the colored liquid to fall into the lower chamber 902. On the contrary, when the first magnet 6 is slightly farther away from the second magnet 7, the suction force decreases, and the second magnet 7 resets upward under the elastic force to squeeze the colored liquid into the upper chamber 901. In this process, the magnetic traction effect is further utilized to achieve the non-contact adjustment effect of the transparency of the support portion 17;

[0051] Further, referring to Figure 3 、 Figure 5 and Figure 6 , a driving element is provided on the base 1, which is configured to apply a longitudinal force to the second traction portion 5, so as to control the longitudinal movement of the second traction portion 5 on the rotating column 10. The driving element can adopt an automatic push rod 11, such as an electric push rod or a pneumatic push rod, etc. The bottom of the second traction portion 5 is a planar structure, and a ball is provided at the output end of the automatic push rod 11, so as to contact the bottom of the second traction portion 5.

[0052] Further, referring to Figure 8 , regarding the structure of the upper chamber 901, its height gradually increases from the center to the circumferential side, and the center is communicated with the lower chamber 902. Adopting this structure enables the colored liquid to gradually spread around when entering the upper chamber 901, thereby preventing the formation of air bubbles, ensuring the horizontal laying of the support portion 17 in place, and ensuring the reflective effect.

[0053] Further, in order to achieve an automatic adjustment effect, photosensitive sensors and other components can be provided on the device, and an electrical linkage is established with the automatic push rod 11, so that the automatic push rod 11 can automatically act according to the ambient light brightness, thereby adjusting the light transmittance of the support portion 17.

[0054] It should be understood that in the development process of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those ordinary technical personnel who benefit from this disclosure, without excessive experimentation, the development efforts will be a routine work of design, manufacturing, and production.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A digital three-dimensional data acquisition device, characterized in that: include: A base, a support, and a scanning camera, wherein the support is rotatably matched with the base, and the scanning camera is configured to rotate around a fixed point on the base; A first traction part is configured to rotate coaxially with the scanning camera, and a synchronous magnetic attraction relationship is configured between the first traction part and the scanning camera; The second traction part is configured to rotate coaxially with the support part, and a synchronous magnetic attraction relationship is configured between the second traction part and the support part.

2. The digital three-dimensional data acquisition device according to claim 1, characterized in that: An annular frame is constructed on the base, and the first traction part is annular and rotatably cooperates with the inner side of the annular frame.

3. The digital three-dimensional data acquisition device according to claim 1, characterized in that: The second traction part and the support part are respectively provided with a first magnet and a second magnet, and are arranged close to each other.

4. The digital three-dimensional data acquisition device according to claim 3, characterized in that: The support portion is configured to have adjustable transparency, the second magnet is configured on the support portion to be longitudinally movable, and the transparency of the support portion changes according to the longitudinal movement of the second magnet.

5. The digital three-dimensional data acquisition device according to claim 4, characterized in that: The support part is provided with a liquid storage cavity, in which a colored liquid is arranged. During the movement of the colored liquid, the colored liquid is horizontally distributed in the support part or the horizontal distribution is released. The colored liquid moves through the second magnet.

6. The digital three-dimensional data acquisition device according to claim 5, characterized in that: The liquid storage chamber comprises an upper chamber and a lower chamber which are interconnected. The upper chamber is horizontally distributed over the support portion, and the second magnet constitutes a side wall of the lower chamber.

7. The digital three-dimensional data acquisition device according to claim 6, characterized in that: The height of the upper chamber gradually increases from the center to the periphery.

8. The digital three-dimensional data acquisition device according to claim 6, characterized in that: The second magnet is in sliding cooperation with the support part, and a spring assembly is connected between the second magnet and the support part. The second traction part is configured to be movable longitudinally.

9. The digital three-dimensional data acquisition device according to claim 8, characterized in that: A rotating column is rotatably arranged on the base, and the second traction part is longitudinally slidably matched with the rotating column. A driving element is arranged on the base, and is configured to apply longitudinal force to the second traction part.

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