Non-contact 3D laser scanning equipment

Abstract

The utility model discloses non-contact 3D laser scanning equipment, and particularly relates to the technical field of 3D laser scanning, the non-contact 3D laser scanning equipment comprises a bottom plate, a portal frame is fixedly connected to the upper surface of the bottom plate, a downward extension rod at the top of the portal frame is fixedly connected with a transparent upper hemispherical shell, and a transparent lower hemispherical shell matched with the transparent upper hemispherical shell is spliced at a bottom opening of the transparent upper hemispherical shell; an outer moving seat matched with the radian of the outer surface of the spherical shell is arranged on the outer side of the spherical shell, an inner moving seat matched with the radian of the inner surface of the spherical shell is arranged on the inner side of the spherical shell, at least three strong magnets are fixedly embedded in the corners of the outer moving seat and the inner moving seat, and the strong magnets on the outer moving seat and the strong magnets on the inner moving seat are in one-to-one correspondence. A laser scanning head is fixedly inserted into the inner moving seat, a main lifting rod penetrating through a through hole in the bottom of the transparent lower hemispherical shell extends upwards and vertically from the bottom plate, and a placement table is mounted at the top of the main lifting rod, so that the precision of a scanned digital model is enhanced, and the burden on the arm of an operator is small.

Description

TECHNICAL FIELD

[0001] The utility model belongs to 3D laser scanning technical field, concretely relates to a non -contact 3D laser scanning equipment. BACKGROUND

[0002] 3D laser scanning equipment is a kind of high-precision measuring tool, and three-dimensional coordinates of object surface are captured by emitting laser beam and analyzing reflected light. It can quickly generate detailed digital model of complex structure or environment, and is widely used in building, archaeology, manufacturing and medical fields, greatly improves the efficiency and accuracy of data acquisition.

[0003] The existing handheld 3D laser scanning equipment, in the process of handheld slow scanning, due to the hand will produce the jitter and reduce the digital model precision scanned out, and due to the slow scanning speed, the long time of non -contact handheld 3D laser scanning equipment is heavy to the arm burden of operator. Therefore, a new non -contact 3D laser scanning equipment is required. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model discloses a non -contact 3D laser scanning equipment.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A non -contact D laser scanning equipment, including the bottom plate, the bottom plate upper surface fixedly connected with gantry, the gantry top downward extension rod fixedly connected with transparent upper half spherical shell, the bottom opening of transparent upper half spherical shell is spliced with the transparent lower half spherical shell that is adapted thereto, the spherical shell outside that transparent upper half spherical shell and transparent lower half spherical shell constitute is provided with the outer moving seat that is adapted with the spherical shell outer surface camber, and the spherical shell inside is provided with the inner moving seat that is adapted with the spherical shell inner surface camber, the outer moving seat and inner moving seat are all fixedly embedded with at least three strong magnets in corner, the strong magnet between the outer moving seat and inner moving seat one to one correspondence, and the corresponding strong magnet is attracted to each other, the inner moving seat is inserted and is fixed with laser scanning head, the bottom plate vertically extends through the main lifting rod of the bottom hole of transparent lower half spherical shell, and the top of main lifting rod is installed with the placing table, the bottom plate vertically extends at least one vice lifting rod, and the top of vice lifting rod is fixedly connected with transparent lower half spherical shell.

[0007] As a preferred technical scheme of the utility model, the outer moving seat and inner moving seat are rotatably embedded with at least three ball bearings in the middle of one side close to the spherical shell, and each ball bearing is in rolling contact with the spherical shell.

[0008] As a preferred technical scheme of the utility model, the outer moving seat and inner moving seat are rotatably embedded with four ball bearings in the middle of one side close to the spherical shell, and each ball bearing is in rolling contact with the spherical shell.

[0009] As a preferred technical scheme of the utility model, four strong magnets are fixedly embedded at the corners of the outer moving seat and the inner moving seat, and the strong magnets on the outer moving seat and the inner moving seat are one-to-one corresponding and attract each other.

[0010] As a preferred technical scheme of the utility model, two rotating clamping plates are rotatably installed on the plug-in seat of the inner moving seat, the rotating clamping plate rotating shaft is arranged at the middle part, a sheet-shaped spring for pushing the other end of the rotating clamping plate towards the laser scanning head is arranged at the end of each rotating clamping plate away from the outer moving seat, and the laser scanning head joint is provided with a groove for clamping the end of the rotating clamping plate.

[0011] As a preferred technical scheme of the utility model, one end of the sheet-shaped spring is inserted into the rotating clamping plate, and the other end is inserted into the inner moving seat.

[0012] As a preferred technical scheme of the utility model, the main lifting rod is threadedly connected with the placing table.

[0013] The utility model has the advantages of:

[0014] First, the outer moving seat and the inner moving seat of the utility model clamp and move the spherical shell, so that the laser scanning head cannot shake during movement and stopping, the accuracy of the scanned digital model is improved, the outer moving seat held by hand always moves along with the spherical shell, the burden on the operator's arm is small, the object can be scanned for a long time, and the part of the scanned object not scanned can be supplemented in real time.

[0015] Second, the laser scanning head of the utility model is installed in the jack of the inner moving seat in a quick release mode, so that the laser scanning head can be easily disassembled and repaired, and the repair time of the laser scanning head is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the overall structure of the embodiment of the utility model;

[0017] Figure 2 It is an exploded view of the outer moving seat, the inner moving seat, the strong magnet, the ball, the rotating clamping plate and the laser scanning head of the embodiment of the utility model;

[0018] Figure 3 It is an exploded view of the inner moving seat, the strong magnet, the ball, the rotating clamping plate and the laser scanning head of the embodiment of the utility model;

[0019] Figure 4 It is a sectional view of the inner moving seat, the strong magnet, the sheet-shaped spring and the rotating clamping plate of the embodiment of the utility model;

[0020] Figure 5The utility model discloses an explosion view of main lifting rod and placing table of embodiment.

[0021] List of figures:

[0022] 1, bottom plate;2, portal frame;3, transparent upper hemispherical shell;4, transparent lower hemispherical shell;5, outer mobile seat;6, inner mobile seat;7, strong magnet;8, ball;9, sheet spring;10, rotating clamping plate;11, laser scanning head;12, main lifting rod;13, placing table;14, vice lifting rod. Specific embodiments

[0023] The utility model discloses be understood below specific embodiment only for illustrating the utility model and not for limiting the scope of the utility model with the specific embodiments and the drawings further illustrate the utility model.

[0024] Please refer to Figures 1-5 A non-contact 3D laser scanning device, comprising a bottom plate 1, the upper surface of the bottom plate 1 is fixedly connected with a portal frame 2. The downward extending rod at the top of the portal frame 2 is fixedly connected with a transparent upper hemispherical shell 3, and the bottom opening of the transparent upper hemispherical shell 3 is matched with a transparent lower hemispherical shell 4. The outer side of the hemispherical shell formed by the transparent upper hemispherical shell 3 and the transparent lower hemispherical shell 4 is provided with an outer mobile seat 5 matched with the arc of the outer surface of the hemispherical shell, and the inner side of the hemispherical shell is provided with an inner mobile seat 6 matched with the arc of the inner surface of the hemispherical shell. The outer mobile seat 5 and the inner mobile seat 6 are fixedly embedded with at least three strong magnets 7 at the corners, the strong magnets 7 on the outer mobile seat 5 and the inner mobile seat 6 correspond to each other, and the corresponding strong magnets 7 attract each other. The outer mobile seat 5 and the inner mobile seat 6 are clamped together under the mutual attraction of the strong magnets 7. When holding the outer mobile seat 5 and moving along the outer surface of the hemispherical shell, the inner mobile seat 6 moves together with the outer mobile seat 5 in the hemispherical shell. The inner mobile seat 6 is fixedly connected with a laser scanning head 11. Since the hemispherical shell is made of transparent material, when the laser scanning head 11 moves together with the inner mobile seat 6, the part of the laser scanning head 11 pointing to the scanned object can be observed. The bottom plate 1 vertically extends upwards through the bottom hole of the transparent lower hemispherical shell 4 and is provided with a main lifting rod 12, and the top of the main lifting rod 12 is provided with a placing table 13. The bottom opening of the transparent lower hemispherical shell 4 is larger than the maximum diameter of the main lifting rod 12. The bottom plate 1 vertically extends upwards and is provided with at least one vice lifting rod 14, and the top of the vice lifting rod 14 is fixedly connected with the transparent lower hemispherical shell 4. Two vice lifting rods 14 are provided in the embodiment of the drawings, which can make the lifting and fixing of the transparent lower hemispherical shell 4 more stable.

[0025] The outer moving seat 5 and the inner moving seat 6 are rotatably embedded with at least three balls 8 in the middle of the side close to the spherical shell, and each ball 8 is in rolling contact with the spherical shell. The contact between the outer moving seat 5, the inner moving seat 6 and the spherical shell through the balls 8 reduces the moving resistance and the abrasion of the spherical shell by the moving.

[0026] Since the outer moving seat 5 and the inner moving seat 6 are each provided with four corners in the embodiment of the drawings, the outer moving seat 5 and the inner moving seat 6 are each fixedly embedded with four strong magnets 7 at the corners, the strong magnets 7 on the outer moving seat 5 and the inner moving seat 6 correspond to each other one by one, and the corresponding strong magnets 7 attract each other.

[0027] The inner moving seat 6 is rotatably provided with two rotating clamping plates 10, and the rotating shaft of the rotating clamping plate 10 is arranged in the middle. The end of each rotating clamping plate 10 away from the outer moving seat 5 is provided with a sheet-shaped spring 9 for pushing the other end of the rotating clamping plate 10 towards the laser scanning head 11 joint, and the laser scanning head 11 joint is provided with a groove matched with the end of the rotating clamping plate 10. One end of the sheet-shaped spring 9 is inserted into the rotating clamping plate 10, and the other end is inserted into the inner moving seat 6.

[0028] The cylindrical end of the outer moving seat 5 is provided with a circular ring, and a protective rope can be tied on the circular ring, and the other end of the protective rope is tied on the top of the gantry 2, and the protective rope does not affect the movement of the outer moving seat 5. When the protective rope is pulled straight down vertically, the outer moving seat 5 cannot contact the bottom plate 1.

[0029] The main lifting rod 12 is threadedly connected with the placement table 13. The top of the main lifting rod 12 can be provided with a placement table 13 of a suitable size according to the size of the object to be scanned, and the placement table 13 can be provided with a clamp for clamping the object to be scanned. The main lifting rod 12 can also be lifted so that the scanned object is as close as possible to the center of the spherical shell, facilitating the surrounding laser scanning.

[0030] Working principle:

[0031] In use, the sub-lifting rod 14 is retracted to move the transparent lower hemispherical shell 4 downward and separate from the transparent upper hemispherical shell 3, then the object to be scanned is placed on the placing table 13, the main lifting rod 12 is lifted to make the object to be scanned as possible to be at the center of the sphere, then the outer moving seat 5 is attached to the outer surface of the transparent upper hemispherical shell 3, and the inner moving seat 6 is attracted from the inside of the transparent upper hemispherical shell 3 to the corresponding position of the outer moving seat 5, then the sub-lifting rod 14 is lifted to make the transparent lower hemispherical shell 4 and the transparent upper hemispherical shell 3 to be integrated, then the outer moving seat 5 is continuously moved along the outer surface of the sphere, so that the inner moving seat 6 and the laser scanning head 11 move with the outer moving seat 5 to multi-angle scan and model the object to be scanned, since at least three pairs of strong magnets 7 that attract each other are arranged between the outer moving seat 5 and the inner moving seat 6, when the outer moving seat 5 rotates, the inner moving seat 6 and the laser scanning head 11 also rotate together, so that the scanning angle is more abundant.

[0032] When the laser scanning head 11 is installed, the joint of the laser scanning head 11 is directly inserted into the insertion hole of the inner moving seat 6, during the insertion of the joint, the rotating clamping plate 10 is first deflected, then is reset under the elastic force of the sheet spring 9, so that the end of the rotating clamping plate 10 is clamped into the groove of the joint, so that the position of the laser scanning head 11 is fixed, when the laser scanning head 11 is disassembled and installed, the end of the rotating clamping plate 10 away from the joint of the laser scanning head 11 is pressed, so that the other end of the rotating clamping plate 10 is separated from the joint of the laser scanning head 11, that is, the laser scanning head 11 can be pulled out.

[0033] It should be noted that the above content only illustrates the technical thought of the present application, and cannot limit the protection scope of the present application, for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, which fall within the protection scope of the present application.

Claims

1. A non-contact 3D laser scanning device comprising a base plate (1), characterized in that, The bottom plate (1) upper surface is fixedly connected with a portal frame (2), the portal frame (2) top downward extension rod is fixedly connected with a transparent upper hemisphere shell (3), the transparent upper hemisphere shell (3) bottom opening is spliced with a transparent lower hemisphere shell (4) matched therewith, the transparent upper hemisphere shell (3) and the transparent lower hemisphere shell (4) constitute a spherical shell outside which is provided with an outer moving seat (5) matched with the spherical shell outer surface curvature, and an inner moving seat (6) matched with the spherical shell inner surface curvature is arranged inside the spherical shell, the outer moving seat (5) and the inner moving seat (6) are each fixedly embedded with at least three strong magnets (7) at the corners, the strong magnets (7) on the outer moving seat (5) and the inner moving seat (6) correspond to each other, and the corresponding strong magnets (7) attract each other, the inner moving seat (6) is inserted and fixed with a laser scanning head (11), the bottom plate (1) vertically extends upward through the bottom hole of the transparent lower hemisphere shell (4) with a main lifting rod (12), and a placement table (13) is installed on the top of the main lifting rod (12), the bottom plate (1) vertically extends upward with at least one auxiliary lifting rod (14), and the top of the auxiliary lifting rod (14) is fixedly connected with the transparent lower hemisphere shell (4).

2. The non-contact 3D laser scanning device of claim 1, wherein, The outer moving seat (5) and the inner moving seat (6) are each rotatably embedded with at least three ball bearings (8) near the middle of one side of the spherical shell, and each ball bearing (8) is in rolling contact with the spherical shell.

3. The non-contact 3D laser scanning device of claim 2, wherein, The outer moving seat (5) and the inner moving seat (6) are each rotatably embedded with four ball bearings (8) near the middle of one side of the spherical shell, and each ball bearing (8) is in rolling contact with the spherical shell.

4. The non-contact 3D laser scanning device of claim 1, wherein, The outer moving seat (5) and the inner moving seat (6) are each fixedly embedded with four strong magnets (7) at the corners, the strong magnets (7) on the outer moving seat (5) and the inner moving seat (6) correspond to each other, and the corresponding strong magnets (7) attract each other.

5. The non-contact 3D laser scanning device of claim 1, wherein, The inner moving seat (6) is rotatably installed with two rotating clamping plates (10), and the rotating shaft of the rotating clamping plate (10) is arranged in the middle, one end of each rotating clamping plate (10) away from the outer moving seat (5) is provided with a sheet spring (9) for pushing the other end of the rotating clamping plate (10) towards the laser scanning head (11) joint, and the laser scanning head (11) joint is provided with a groove matched with the end clamping of the rotating clamping plate (10).

6. The non-contact 3D laser scanning device of claim 5, wherein, One end of the sheet spring (9) is inserted into the rotating clamping plate (10), and the other end is inserted into the inner moving seat (6).

7. The non-contact 3D laser scanning device of claim 1, wherein, The main lifting rod (12) and the placement table (13) are threadedly connected.

Images