Three-dimensional scanning splicing system

Abstract

The utility model relates to a three-dimensional scanning splicing system which comprises a scanning platform used for placing an object, an X-axis support arranged above the scanning platform, a Y-axis guide rail arranged on the X-axis support in a sliding mode, a Z-axis lifting frame arranged on the Y-axis guide rail in a sliding mode and a scanning device arranged on the Z-axis lifting frame in a sliding mode. The X-axis support comprises two parallel X-axis sliding rails, the two ends of the Y-axis guide rail are connected to the two X-axis sliding rails in a sliding mode, the two ends of the X-axis sliding rails are detachably connected with extension guide rails, and the Y-axis guide rail can slide to the extension guide rails along the X-axis sliding rails. According to the invention, splicing can be carried out according to actual needs, so that the equipment can be suitable for three-dimensional scanning of objects in a larger volume range, and the use convenience of the equipment is improved.

Description

Technical Field

[0001] The present application relates to the field of three-dimensional scanning technology, and in particular to a three-dimensional scanning splicing system. Background Art

[0002] 3D scanning refers to a high-tech technology that integrates optical, mechanical, electrical and computer technologies. It is mainly used to scan the spatial shape, structure and color of an object to obtain the spatial coordinates of the object's surface. Its significance lies in the ability to convert the three-dimensional information of the object into a digital signal that can be directly processed by the computer, providing a very convenient and fast means for the digitization of the object. 3D scanning technology can achieve non-contact measurement and has the advantages of fast speed and high precision.

[0003] Existing 3D scanning equipment often has a fixed structure and size, and has certain limitations when used. For example, when scanning a large object, it cannot be placed in the scanning device due to the size of the device; when scanning a small object, the scanning device is too large to waste space. Utility Model Content

[0004] The purpose of this application is to provide a three-dimensional scanning and stitching system that can perform stitching according to actual needs, so that the device can be used for three-dimensional scanning of objects in a larger volume range, thereby improving the convenience of using the device.

[0005] The three-dimensional scanning and splicing system provided in this application adopts the following technical solution:

[0006] A three-dimensional scanning and splicing system comprises a scanning platform for placing objects, an X-axis bracket arranged above the scanning platform, a Y-axis guide rail slidably arranged on the X-axis bracket, a Z-axis lifting frame slidably arranged on the Y-axis guide rail, and a scanning device slidably arranged on the Z-axis lifting frame, wherein the X-axis bracket comprises two X-axis slide rails arranged in parallel, both ends of the Y-axis guide rail are slidably connected to the two X-axis slide rails, both ends of the X-axis slide rail are detachably connected to extension guide rails, and the Y-axis guide rail can slide along the X-axis slide rail to the extension guide rail.

[0007] As a preferred technical solution of the present application, the X-axis bracket also includes a support column connected to the end of the X-axis slide rail and a connecting beam connected between the two support columns at the same end of the two X-axis slide rails. A connecting hole is opened axially on the end surface of the X-axis slide rail. The upper end of the support column is detachably connected to a connecting rod, which is connected to the connecting hole. The lower end of the support column is rotatably connected to the scanning platform.

[0008] As a preferred technical solution of the present application, the scanning platform is configured as a rectangular platform, the support column is connected to the top corner of the scanning platform, a support rotating shaft perpendicular to the X-axis slide rail is provided at the top corner of the scanning platform, and the lower end of the support column is connected to the support rotating shaft.

[0009] As a preferred technical solution of the present application, a support frame is provided on the side of the scanning platform, and the support column can rotate outward around the support rotation axis until it abuts against the support frame. When the support column abuts against the support frame, the support column is in a horizontal state.

[0010] As a preferred technical solution of the present application, the extended guide rail includes a linear guide rail portion having the same cross-sectional shape as that of the X-axis slide rail and a supporting column portion vertically connected to one end of the linear guide rail portion, the linear guide rail portion is coaxially connected to the X-axis slide rail through an end away from the supporting column portion, and the lower end of the supporting column portion is detachably connected to the support column in a horizontal state.

[0011] As a preferred technical solution of the present application, a mounting hole is axially arranged on the lower end surface of the support column part, and the support column is connected to the support column part through a connecting rod.

[0012] As a preferred technical solution of the present application, the connecting rod includes a prism segment at one end and a threaded segment coaxially connected to one side of the prism segment. The connecting hole is set as a threaded hole, the threaded segment is threadedly connected to the connecting hole, and the prism segment abuts the outer side of the support column.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] 1. The system of the present application can add an extended guide rail structure to the original equipment technology, thereby increasing the range of motion of the scanning device lens, allowing the scanning device to scan larger objects. When the scanned objects are smaller, the extended guide rail can be removed to reduce the space occupied by the equipment and improve the convenience of using the equipment.

[0015] 2. The extended guide rail has a simple structure and can make full use of the support columns of the original equipment for installation, which simplifies the installation structure of the extended guide rail, reduces the difficulty of installation and disassembly, and is easy to use.

[0016] 3. The support column of the original equipment can be switched between vertical and horizontal states, which can effectively support the X-axis slide rail and the extended guide rail, reducing the overall weight of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the splicing system of the embodiment of the present application before the slide rail is extended;

[0018] Figure 2 It is a schematic diagram of the overall structure of the splicing system after the slide rail is extended in the embodiment of the present application;

[0019] Figure 3 This is a diagram of the connection structure between the X-axis slide rail and the support column in an embodiment of the present application;

[0020] Figure 4 This is a diagram of the connection structure between the X-axis slide rail and the linear guide rail in the embodiment of the present application;

[0021] Figure 5 This is a diagram of the connection structure between the support column and the support column part in the embodiment of the present application;

[0022] In the figure, 1. scanning platform; 11. supporting rotating shaft; 12. supporting frame; 2. X-axis bracket; 21. X-axis slide rail; 211. connecting hole; 22. supporting column; 23. connecting beam; 3. Y-axis guide rail; 4. Z-axis lifting frame; 5. scanning device; 6. extended guide rail; 61. linear guide rail part; 62. supporting column part; 621. mounting hole; 63. reinforcing beam; 7. connecting rod; 71. prismatic section; 72. threaded section. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0024] Embodiment: This application proposes a three-dimensional scanning and stitching system, referring to Figure 1-5 The system includes a scanning platform 1, an X-axis bracket 2, a Y-axis guide rail 3, a Z-axis lifting frame 4, a scanning device 5 and an extended guide rail 6, wherein Figure 1 This is the structural diagram in the original state. Figure 2 This is the structural diagram of the equipment in the extended state.

[0025] Reference Figure 1 , at this time, the system includes a scanning platform 1, an X-axis bracket 2, a Y-axis guide rail 3, a Z-axis lifting frame 4 and a scanning device 5. Among them, the scanning platform 1 is used to place the object to be scanned. In this embodiment, the scanning platform 1 includes a base and a table top. The table top is installed on the base. In this embodiment, the table top of the scanning platform 1 is a rectangular structure. The base can be fixed or movable. In this embodiment, it is set as a fixed structure to facilitate the movement and transportation of the entire equipment. Rectangular corners are opened at the four corners of the table top of the scanning platform 1, and the base can be exposed. The exposed upper surface of the base is connected to a support rotation shaft 11, and the support rotation shaft 11 is parallel to the upper surface of the scanning platform 1. Support frames 12 are installed at the four corners of the base of the scanning platform 1. In this embodiment, the support frame 12 is set as a triangular bracket, and the support surface of its upper surface is a plane, and it is opposite to the position of the support rotation shaft 11.

[0026] The X-axis bracket 2 includes two X-axis rails 21, four support columns 22 and two connecting beams 23. The two X-axis rails 21 are arranged in parallel. The X-axis rails 21 are arranged above the short side of the scanning platform 1 and are perpendicular to the axis of the supporting rotating shaft 11. In this embodiment, the X-axis rails 21 are arranged as mechanical guide rails. A support column 22 is connected to each end of each X-axis rail 21. The lower end of the support column 22 is rotatably connected to the supporting rotating shaft 11, and the pressure received is transmitted to the base of the scanning platform 1 through the supporting rotating shaft 11. The upper end side of the support column 22 abuts against the end face of the X-axis rail 21 and is detachably connected to the end of the X-axis rail 21. The connecting beam 23 is parallel to the axis of the supporting rotating shaft 11. A connecting beam 23 is connected between the support columns 22 at both ends of the same long side of the scanning platform 1, and the connection position is the middle of the support column 22.

[0027] Reference Figure 3 A connecting hole 211 is provided on the end surface of the X-axis slide rail 21 in the axial direction, and a through hole penetrating two opposite side surfaces is provided on the upper end of the support column 22. The support column 22 and the X-axis slide rail 21 are detachably connected via a connecting rod 7. The connecting rod 7 includes a prism section 71 and a threaded section 72 connected coaxially. The prism section 71 is configured as a quadrangular prism, and the end surface of one end is in contact with the end surface of the threaded section 72. In this embodiment, the connecting hole 221 is configured as a threaded hole. When the connecting rod 7 connects the support column 22 to the X-axis slide rail 21, the threaded section 72 first passes through the through hole at the upper end of the support column 22 and then is threadedly connected to the connecting hole 211 until the prism section 71 abuts against the outer side of the support column 22.

[0028] The Y-axis guide rail 3 is set as a high-precision mechanical guide rail, and a moving body slidably connected to two X-axis slide rails 21 is set at both ends. A driving motor is installed on one of the moving bodies, and the driving motor adopts a servo motor, so that the movement accuracy of the Y-axis guide rail 3 on the X-axis slide rail 21 is higher. The Z-axis lifting frame 4 is perpendicular to the upper surface of the scanning platform 1 and is slidably connected to the Y-axis guide rail 3. The upper end of the Z-axis lifting frame 4 is also provided with a moving body, which is connected to the Y-axis guide rail 3 through the moving body. A servo motor is installed on the moving body, so that the Z-axis lifting frame 4 can be positioned and moved on the Y-axis guide rail 3 with high precision. In this embodiment, the Z-axis lifting frame 4 adopts a high-precision ground ball screw. The scanning device 5 is slidably connected to the Z-axis lifting frame 4, and is driven to rise and fall by the servo motor on the top of the Z-axis lifting frame 4. Through the drive of the Z-axis, Y-axis and Z-axis, the lens of the scanning device 5 can move flexibly in the system to scan the object.

[0029] Reference Figure 2 , 4 and 5, at this time the system includes a scanning platform 1, an X-axis bracket 2, a Y-axis guide rail 3, a Z-axis lifting frame 4, a scanning device 5 and an extension guide rail 6.

[0030] The upper end of the support column 22 is disconnected from the X-axis slide rail 21, and the two support columns 22 at the same long side of the scanning platform 1 rotate outward around the support rotation axis 11. At this time, the support column 22 is in a state parallel to or coplanar with the upper surface of the scanning platform 1, and the lower side of the support column 2 is abutted against the support frame 12, and the support frame 12 provides support for the support column 22.

[0031] The upper end of the extended guide rail 6 is detachably connected to the X-axis slide rail 21 , and the lower end is detachably connected to the outer end of the support column 22 that is rotated outward. The extended guide rail 6 includes a linear guide rail portion 61 , a support column portion 62 and a reinforcing crossbeam 63 .

[0032] The cross-sectional shape of the linear guide portion 61 is the same as that of the X-axis slide rail 21. The linear guide portion 61 and the X-axis slide rail 21 are coaxially connected via a connecting rod 7. A polygonal hole matching the cross-sectional shape of the prismatic segment 71 of the connecting rod 7 is provided on the end surface at one end where the linear guide portion 61 is connected to the X-axis slide rail 21. The connecting rod 7 is inserted into the polygonal hole on the linear guide portion 61 through the prismatic segment 71, and is screwed into the connecting hole 211 on the end surface of the X-axis slide rail 21 through the threaded segment 72.

[0033] The support column part 62 is vertically connected to the end of the linear guide part 61 away from the X-axis slide rail 21 through the upper end, and the lower end of the support column part 62 is detachably connected to the support column 22 in a horizontal state. Specifically, the lower end surface of the support column part 62 is axially provided with a mounting hole 621, and the mounting hole 621 is also set as a threaded hole, and the hole size is the same as that of the connecting hole 211. The support column 22 is connected to the support column part 62 through the connecting rod 7. The connecting rod 7 is first screwed into the mounting hole 621 through the threaded section 72, and then inserted into the multi-prism hole on the support column 22 through the prism section 71.

[0034] The reinforcing cross beam 63 is parallel to the connecting cross beam 23 and is fixedly connected between the two supporting column parts 62 .

[0035] In order to maintain the stability of the X-axis slide rail 21 when the splicing system changes state, in this embodiment, a load-bearing column is installed in the middle position of the short side of the scanning platform 1, and the X-axis slide rail 21 is fixedly connected to the load-bearing column.

[0036] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A three-dimensional scanning and stitching system, characterized in that: The invention comprises a scanning platform (1) for placing an object, an X-axis support (2) arranged above the scanning platform (1), a Y-axis guide rail (3) slidably arranged on the X-axis support (2), a Z-axis lifting frame (4) slidably arranged on the Y-axis guide rail (3), and a scanning device (5) slidably arranged on the Z-axis lifting frame (4), wherein the X-axis support (2) comprises two X-axis slide rails (21) arranged in parallel, two ends of the Y-axis guide rail (3) are slidably connected to the two X-axis slide rails (21), two ends of the X-axis slide rail (21) are detachably connected to an extension guide rail (6), and the Y-axis guide rail (3) can slide along the X-axis slide rail (21) to the extension guide rail (6).

2. A three-dimensional scanning and stitching system according to claim 1, characterized in that: The X-axis bracket (2) further comprises a support column (22) connected to the end of the X-axis slide rail (21) and a connecting crossbeam (23) connected between two support columns (22) at the same end of the two X-axis slide rails (21); a connecting hole (211) is provided on the end surface of the X-axis slide rail (21) along the axial direction; the upper end of the support column (22) is detachably connected to a connecting rod (7), the connecting rod (7) is connected to the connecting hole (211), and the lower end of the support column (22) is rotatably connected to the scanning platform (1).

3. A three-dimensional scanning and stitching system according to claim 2, characterized in that: The scanning platform (1) is configured as a rectangular platform, the support column (22) is connected to the top corner of the scanning platform (1), a support rotation axis (11) perpendicular to the X-axis slide rail (21) is provided at the top corner of the scanning platform (1), and the lower end of the support column (22) is connected to the support rotation axis (11).

4. A three-dimensional scanning and stitching system according to claim 3, characterized in that: A support frame (12) is arranged on the side of the scanning platform (1), and the support column (22) can rotate outward around the support rotation axis (11) until it abuts against the support frame (12). When the support column (22) abuts against the support frame (12), the support column (22) is in a horizontal state.

5. A three-dimensional scanning and stitching system according to claim 4, characterized in that: The extended guide rail (6) comprises a linear guide rail portion (61) having a cross-sectional shape identical to that of the X-axis slide rail (21) and a support column portion (62) vertically connected to one end of the linear guide rail portion (61); the linear guide rail portion (61) is coaxially connected to the X-axis slide rail (21) via an end away from the support column portion (62); and the lower end of the support column portion (62) is detachably connected to the support column (22) in a horizontal state.

6. A three-dimensional scanning and stitching system according to claim 5, characterized in that: The lower end surface of the support column part (62) is provided with a mounting hole (621) along the axial direction, and the support column (22) is connected to the support column part (62) via a connecting rod (7).

7. The three-dimensional scanning and stitching system according to claim 5, characterized in that: A reinforcing crossbeam (63) is connected between the two extended guide rails (6) at the same end of the two X-axis slide rails (21).

8. A three-dimensional scanning and stitching system according to any one of claims 2 to 6, characterized in that: The connecting rod (7) comprises a prism section (71) at one end and a threaded section (72) coaxially connected to one side of the prism section (71); the connecting hole (211) is configured as a threaded hole; the threaded section (72) is threadedly connected in the connecting hole (211); and the prism section (71) abuts against the outer side of the support column (22).

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