High-precision movable 3D local scanning device

Abstract

The utility model discloses a high-precision movable 3D local scanning device which comprises an arc-shaped base and an arc-shaped strip fixedly installed at the upper end of the arc-shaped base and further comprises a sliding block installed at the upper end of the arc-shaped strip in a sliding mode, and a lifting structure is arranged at the upper end of the sliding block. And the lifting structure can realize the effect that the device can perform scanning at different heights. According to the high-precision movable 3D local scanning device, the scanner body can rotate around the arc-shaped frame through the arc-shaped strip, the scanning device can conveniently scan a head model at different angles, the mounting block is horizontally arranged so that the head model can be conveniently placed, and the arc-shaped frame is of a side-looking arc-shaped structure; the scanner body can conveniently scan the head model at multiple angles in the moving process of the scanner body, the position of the scanner body can be changed by moving the moving rod in the fixed cylinder, the scanner body can conveniently scan different positions of the head model, and the use comprehensiveness of the scanning device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D local scanning, in particular to a high-precision movable 3D local scanning device. Background Art

[0002] The scanning device is to measure the three-dimensional coordinate point set of the surface of the physical object. The collection of a large number of coordinate points is called a point cloud. The 3D scanning device has the advantages of fast speed, high precision and simple operation. The scanning device is generally used in conjunction with a computer during use. However, the existing high-precision movable 3D local scanning device still has certain usage defects during use, such as:

[0003] Invention announcement number CN115031654A discloses a movable 3D vision scanning device, in which a linear guide is installed on a truss, and a 3D vision sensor is installed on the linear guide through a mounting plate. The 3D vision sensor can be driven by the linear guide, so that the 3D acquisition orientation of the 3D vision sensor can be flexibly changed. Therefore, the movable 3D vision scanning device has a larger working range and is more flexible and convenient to use;

[0004] Another example is the utility model announcement CN220286837U which discloses an automatically adjustable high-precision 3D visual measurement device. After placing the device on the muddy ground, pull the pull rod to the right to drive the sliding rod at the lower end to move right until the left end of the sliding rod is no longer in the insertion hole at the lower end of the insertion rod. The second spring automatically rebounds to push the insertion rod downward, and the insertion rod is pushed into the muddy ground at the lower end of the bottom plate, so that the entire device can be stably fixed on the muddy ground.

[0005] In the above document, before using the above two devices, they need to be placed stably, and then the device can be used to scan the target. During the scanning process, the scanning bodies of the above two devices can only move in the same direction, making it difficult to scan the side of the target. The scanning range is limited, which is inconvenient.

[0006] In view of the above problems, it is urgent to carry out innovative design based on the original scanning device structure. Utility Model Content

[0007] The purpose of the utility model is to provide a high-precision movable 3D local scanning device to solve the problem that the scanning body of the device proposed in the above background technology can only move in the same direction during movement, it is difficult to scan the side of the target, the scanning range is limited, and there are inconveniences.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision movable 3D local scanning device, comprising an arc-shaped base and an arc-shaped bar fixedly installed on the upper end of the arc-shaped base;

[0009] It also includes that a sliding block is slidably installed on the upper end of the arc-shaped bar, and a lifting structure is provided on the upper end of the sliding block, and the lifting structure can achieve the effect that the device can perform scanning at different heights;

[0010] The scanner body is fixedly mounted on the upper end of the lifting structure.

[0011] Preferably, a fixed cylinder and a moving rod are provided inside the lifting structure, the fixed cylinder is fixedly installed on the upper end of the sliding block, and the moving rod is slidably installed inside the fixed cylinder, and the upper end of the moving rod is rotatably installed with a mounting rod, and the upper end of the mounting rod is located at the lower end of the scanner body.

[0012] Preferably, a regulating valve is rotatably installed inside the fixed cylinder, and the regulating valve can control its position inside the fixed cylinder, and the regulating valve is in close contact with the movement rod.

[0013] Preferably, the moving rod can be moved out from the interior of the fixed cylinder, and the mounting rod at the upper end of the moving rod can be separated from the scanner body.

[0014] Preferably, an angle adjustment structure is provided inside the device, and the angle adjustment structure can adjust the horizontal position of the scanner body;

[0015] A sliding block and a mounting rod are provided inside the angle adjustment structure, a lubrication ball is nested and installed on the inner surface of the sliding block close to the arc strip, and the arc strip is an arc-shaped structure when viewed from above, and a fixed valve is rotatably installed inside the sliding block, and the fixed valve is in close contact with the outer side of the arc strip.

[0016] Preferably, a rotating valve is rotatably installed between the mounting rod and the moving rod, and a limit valve is rotatably installed at the lower end of the mounting rod, and the limit valve can limit the scanner body at the upper end of the mounting rod, and the rotating valve can control the rotation angle between the moving rod and the mounting rod.

[0017] Preferably, the conical support seat has an isosceles trapezoidal structure in a front view, and the mounting block at the upper end of the conical support seat is arranged horizontally, and the arc frame at the upper end of the mounting block has an arc-shaped structure in a side view.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. An arc-shaped base and an arc-shaped bar are provided, and the arc-shaped bar can be used to make the scanner body rotate around the arc-shaped frame, so that the scanning device can scan different angles of the head model and improve the scanning accuracy of the scanning device;

[0020] 2. A mounting block and an arc frame are provided. The mounting block is horizontally arranged to facilitate placement of the head model, while the arc frame has an arc-shaped structure in a side view, which facilitates scanning the head model at multiple angles during the movement of the scanner body, further improving the convenience of using the scanning device;

[0021] 3. Furthermore, a fixed cylinder and a moving rod are provided, and the moving rod can be moved inside the fixed cylinder to change the position of the scanner body, so that the scanner body can scan different positions of the head model, thereby improving the comprehensiveness of the use of the scanning device;

[0022] 4. Furthermore, the scanning device has a simple structure, accurate positioning, stability and reliability, can take into account the needs of multi-directional shooting, is highly practical, uses a single set of 3D cameras, has low cost and is easy to operate;

[0023] 5. Furthermore, the scanning device can be used not only in facial shooting scenarios, but also in various usage scenarios that require three-dimensional reverse modeling. It can be used in a variety of visual scanning scenarios and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0026] Figure 3 It is a right side structural schematic diagram of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the scanner main body of the utility model in a right-side elevation state;

[0028] Figure 5 This is a right sectional structural diagram of the fixed cylinder of the utility model;

[0029] Figure 6 This is a right sectional structural diagram of the sliding block of the utility model;

[0030] Figure 7 It is a schematic diagram of the top sectional structure of the utility model.

[0031] In the figure: 1. Arc base; 2. Arc bar; 3. Conical support seat; 4. Mounting block; 5. Arc frame; 6. Sliding block; 7. Fixed cylinder; 8. Moving rod; 9. Mounting rod; 10. Scanner body; 11. Limit valve; 12. Rotating valve; 13. Adjusting valve; 14. Fixed valve; 15. Support seat; 16. Lubricating ball. DETAILED DESCRIPTION

[0032] 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.

[0033] Embodiment 1: This embodiment Figure 1-Figure 5 As shown, in order to solve the problem that the existing scanning device is difficult to adjust the height, a process of adjusting the height of a high-precision movable 3D local scanning device is disclosed, and the scanning device can be stably adjusted in height. The specific contents are as follows:

[0034] A fixed cylinder 7 and a moving rod 8 are arranged inside the lifting structure. The fixed cylinder 7 is fixedly mounted on the upper end of the sliding block 6, and the moving rod 8 is slidably mounted inside the fixed cylinder 7, and a mounting rod 9 is rotatably mounted on the upper end of the moving rod 8, and the upper end of the mounting rod 9 is located at the lower end of the scanner body 10;

[0035] A regulating valve 13 is rotatably mounted inside the fixed cylinder 7, and the regulating valve 13 can control its position inside the fixed cylinder 7, and the regulating valve 13 is in close contact with the moving rod 8;

[0036] The moving rod 8 can be moved out from the interior of the fixed cylinder 7 , and the mounting rod 9 at the upper end of the moving rod 8 can be separated from the scanner body 10 .

[0037] When using the high-precision movable 3D local scanning device, first place the device at the position where it needs to work. After placing the device at the required position, the model can be scanned by the device. During the scanning process of the device, the head model and the hand model can be scanned by the device. Therefore, it is necessary to adjust the scanner body 10 to the required position before scanning. During this process, the position of the moving rod 8 inside the fixed cylinder 7 needs to be adjusted to facilitate changing the position of the scanner body 10. Then, during this process, the regulating valve 13 needs to be reversed and the regulating valve 13 is separated from the moving rod 8. Then, the moving rod 8 can be made to slide inside the fixed cylinder 7. During the movement of the moving rod 8, the scanner body 10 will be driven to move and change the position of the scanner body 10 through the mounting rod 9. After adjusting the position of the scanner body 10 to the required position, the regulating valve 13 is reversed and the regulating valve 13 is in close contact with the moving rod 8, so that the moving rod 8 is limited at this position. At this time, the scanner body 10 can stably scan the model. By adjusting the position of the scanner body 10 and fixing it, the convenience and stability of the use of the scanning device are effectively improved.

[0038] Embodiment 2: This embodiment is as follows Figure 1-Figure 7 As shown, in order to solve the problem of limited scanning range of existing scanning devices, a high-precision movable 3D local scanning device is disclosed to scan different positions of a model, so that the scanning device can perform multi-angle scanning. The specific contents are as follows:

[0039] An angle adjustment structure is provided inside the device, and the angle adjustment structure can adjust the horizontal position of the scanner body 10;

[0040] The angle adjustment structure is provided with a sliding block 6 and a mounting rod 9. A lubricating ball 16 is nested and installed on the inner surface of the sliding block 6 close to the arc strip 2. The arc strip 2 is an arc-shaped structure when viewed from above. A fixed valve 14 is rotatably installed inside the sliding block 6. The fixed valve 14 is in close contact with the outer side of the arc strip 2.

[0041] A rotating valve 12 is rotatably installed between the mounting rod 9 and the moving rod 8, and a limit valve 11 is rotatably installed at the lower end of the mounting rod 9, and the limit valve 11 can limit the scanner body 10 at the upper end of the mounting rod 9, and the rotating valve 12 can control the rotation angle between the moving rod 8 and the mounting rod 9;

[0042] The conical support seat 3 is in an isosceles trapezoidal structure when viewed from the front, and the mounting block 4 at the upper end of the conical support seat 3 is arranged horizontally, and the arc frame 5 at the upper end of the mounting block 4 is in an arc-shaped structure when viewed from the side.

[0043] When the high-precision movable 3D local scanning device is used, the hand model and the head model can be scanned by the scanner body 10. When scanning the hand model, the position and angle of the scanner body 10 need to be adjusted. In this process, the position of the scanner body 10 needs to be adjusted first. At this time, the fixed valve 14 needs to be rotated in the opposite direction and the fixed valve 14 is separated from the arc strip 2. Then, the sliding block 6 can be pushed to move and the lubricating ball 16 can be used to roll on the outside of the arc strip 2, so that the sliding block 6 can move. During the movement of the sliding block 6, the fixing cylinder 7 and the moving rod 8 will drive the mounting rod 9 and the scanner body 10 to move, so as to scan different positions of the hand model and the head model. In the process of scanning the hand model After the sliding block 6 moves, the scanner body 10 needs to be moved downward to shoot the hand model. At this time, the rotating valve 12 needs to be rotated to loosen the moving rod 8 and the mounting rod 9. Then, the mounting rod 9 can drive the scanner body 10 to rotate at the upper end of the moving rod 8. After the scanner body 10 is rotated to a vertical state, the rotating valve 12 is reversed (the rotating valve 12 controlling the tightness between the moving rod 8 and the mounting rod 9 is a prior art and does not need to be further explained here). This can tighten the moving rod 8 and the mounting rod 9, thereby fixing the position of the scanner body 10 and ensuring the stability of the scanner body 10 in scanning the hand model. By adjusting the position and angle of the scanner body 10, the comprehensiveness of the use of the scanner can be effectively improved.

[0044] Embodiment 3: This embodiment is as follows Figure 1-Figure 6 As shown, in order to solve the problem of complex structure of the existing scanning device, the process of assembling and using a high-precision movable 3D local scanning device is disclosed, which realizes the effect of facilitating the assembly of the scanning device. The specific contents are as follows:

[0045] An arc-shaped base 1 and an arc-shaped bar 2 fixedly mounted on the upper end of the arc-shaped base 1;

[0046] It also includes that a sliding block 6 is slidably installed on the upper end of the arc strip 2, and a lifting structure is provided on the upper end of the sliding block 6, and the lifting structure can achieve the effect that the device can perform scanning at different heights;

[0047] The scanner body 10 is fixedly mounted on the upper end of the lifting structure.

[0048] When using the high-precision movable 3D local scanning device, the scanning device needs to be assembled, and during the assembly process, the scanner body 10 needs to be installed on the upper end of the mounting rod 9 using the limit valve 11, and then the mounting rod 9 is rotated and installed on the upper end of the moving rod 8 through the rotating valve 12 (the rotating valve 12 and the limit valve 11 structure are prior art and will not be further explained here). At this time, the lower end of the moving rod 8 can be placed on the upper end of the fixed cylinder 7, and then the sliding block 6 can be slidably installed on the outside of the arc base 1 and the arc bar 2. At this point, the assembly process of the scanning device is completed, and then the hand model and the head model can be scanned by the device, thereby effectively improving the convenience of using the scanning device and increasing the overall practicality.

[0049] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0050] 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 high-precision movable 3D local scanning device, comprising an arc-shaped base (1) and an arc-shaped bar (2) fixedly mounted on the upper end of the arc-shaped base (1); Features: The device further comprises a sliding block (6) slidably mounted on the upper end of the arc-shaped bar (2), and a lifting structure is arranged on the upper end of the sliding block (6), and the lifting structure can achieve the effect that the device can perform scanning at different heights; A scanner body (10) is fixedly mounted on the upper end of the lifting structure.

2. A high-precision movable 3D local scanning device according to claim 1, characterized in that: A fixed cylinder (7) and a moving rod (8) are arranged inside the lifting structure. The fixed cylinder (7) is fixedly mounted on the upper end of the sliding block (6), and the moving rod (8) is slidably mounted inside the fixed cylinder (7). A mounting rod (9) is rotatably mounted on the upper end of the moving rod (8), and the upper end of the mounting rod (9) is located at the lower end of the scanner body (10).

3. The high-precision movable 3D local scanning device according to claim 2, characterized in that: A regulating valve (13) is rotatably mounted inside the fixed cylinder (7), and the regulating valve (13) can control its position inside the fixed cylinder (7), and the regulating valve (13) is in close contact with the moving rod (8).

4. A high-precision movable 3D local scanning device according to claim 2 or 3, characterized in that: The moving rod (8) can be moved out from the interior of the fixed cylinder (7), and the mounting rod (9) at the upper end of the moving rod (8) can be separated from the scanner body (10).

5. The high-precision movable 3D local scanning device according to claim 1, characterized in that: An angle adjustment structure is provided inside the device, and the angle adjustment structure can adjust the horizontal position of the scanner body (10); A sliding block (6) and a mounting rod (9) are arranged inside the angle adjustment structure; a lubricating ball (16) is nested and mounted on the inner surface of one side of the sliding block (6) close to the arc strip (2); the arc strip (2) is in an arc-shaped structure when viewed from above; and a fixed valve (14) is rotatably mounted inside the sliding block (6); the fixed valve (14) is in close contact with the outer side of the arc strip (2).

6. The high-precision movable 3D local scanning device according to claim 5, characterized in that: A rotating valve (12) is rotatably mounted between the mounting rod (9) and the moving rod (8), and a limit valve (11) is rotatably mounted on the lower end of the mounting rod (9). The limit valve (11) can limit the scanner body (10) at the upper end of the mounting rod (9), while the rotating valve (12) can control the rotation angle between the moving rod (8) and the mounting rod (9).

7. The high-precision movable 3D local scanning device according to claim 1, characterized in that: The conical support seat (3) has an isosceles trapezoidal structure when viewed from the front, the mounting block (4) at the upper end of the conical support seat (3) is arranged horizontally, and the arc-shaped frame (5) at the upper end of the mounting block (4) has an arc-shaped structure when viewed from the side.

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