Intelligent boundary laser measuring head of three-dimensional scanner

Abstract

The utility model relates to the technical field of laser measuring heads of three-dimensional scanners, in particular to an intelligent boundary laser measuring head of a three-dimensional scanner, which comprises a cleaning piece used for cleaning the surface of a lens of a laser measuring head body, the cleaning piece comprises a shifting plate arranged in an installation opening, a turning block is fixedly installed on the left side of the shifting plate, and a laser measuring head is installed on the turning block. A plurality of sets of limiting holes are formed in the surface of the shifting plate, elastic telescopic rods are inserted into the limiting holes, an electromagnet is fixedly installed at one end of each elastic telescopic rod, and two sets of positioning rods are symmetrically installed on the surface of each electromagnet. According to the utility model, all parts are matched for use, so that the surface of the lens of the laser measuring head can be cleaned regularly in the long-time use process of the three-dimensional scanner, the laser measuring head can emit laser according to a normal path when the laser is emitted, and the accuracy of a created model is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of laser measuring heads of three-dimensional scanners, in particular to an intelligent boundary laser measuring head of a three-dimensional scanner. Background Art

[0002] The purpose of a 3D scanner is to create a point cloud of the geometric surface of an object. These points can be used to interpolate the surface shape of the object. The denser the point cloud, the more accurate the model can be created (this process is called 3D reconstruction). If the scanner can obtain the surface color, the material map can be further pasted on the reconstructed surface. In the process of realizing its function, the 3D scanner uses the principle of laser ranging to record the 3D coordinates, reflectivity, texture and other information of a large number of dense points on the surface of the object to be measured, and quickly construct a 3D model of the target to be measured.

[0003] However, when the 3D scanner is in use, the laser probe installed on it is in contact with the air for a long time, which will cause dust to accumulate on the lens surface of the laser probe. As a result, when the laser probe emits laser, it will be affected by the dust on the lens surface, which will affect the path of the laser emission and cause deviations in the created model. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides an intelligent boundary laser probe for a three-dimensional scanner, which can effectively solve the problem that when the laser probe in the prior art emits laser, it is affected by dust on the surface of the lens, which affects the path of laser emission and causes deviations in the created model.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The utility model provides an intelligent boundary laser probe for a three-dimensional scanner, comprising a laser probe body and a rotating ring rotatably mounted at one end of the laser probe body, wherein the inner arc surface of the laser probe body in contact with the rotating ring is provided with multiple groups of mounting openings at equal distances, and further comprising:

[0007] A cleaning piece for cleaning the surface of the lens of the laser probe body, the cleaning piece includes a dial plate arranged inside the mounting port, a change-of-direction block is fixedly installed on the left side of the dial plate, a plurality of groups of limiting holes are provided on the surface of the dial plate, an elastic telescopic rod is inserted into the inside of the limiting hole, an electromagnet is fixedly installed on one end of the elastic telescopic rod, and two groups of positioning rods are symmetrically installed on the surface of the electromagnet.

[0008] Furthermore, the plurality of groups of the installation ports are all connected to the tapered ports, and the plurality of groups of the tapered ports are all connected through an annular groove provided at one end of the laser probe body, and the annular groove is connected to an external air source.

[0009] Furthermore, the turning block has a trapezoidal structure, is installed in the lower middle part of the dial plate, and is staggered with the conical opening, and a flexible baffle is fixedly installed at the end of the turning block.

[0010] Furthermore, a notch is provided on the bottom surface of the limiting hole, and positioning grooves are symmetrically provided on the inner wall of the notch, and a magnetic attraction block is fixedly installed on the bottom surface of the notch.

[0011] Furthermore, the elastic telescopic rod is fixedly mounted on the inner wall of the mounting opening, and the elastic telescopic rod is rotationally matched with the shifting plate.

[0012] Furthermore, the positioning rod is initially inserted into the positioning slot to position the paddle.

[0013] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] The utility model provides components such as a paddle plate, a redirecting block and an elastic telescopic rod, so that when the laser probe is used for a certain period of time, an external gas source can be triggered to inflate the annular groove, while the electromagnet is powered off, and begins to move out of the recess under the reaction force generated by the elastic telescopic rod stretched in the initial state, so that the paddle plate is released from the limit, and because the redirecting block and the tapered mouth are staggered, the gas inside the annular groove acts on one side of the redirecting block after being accelerated through the tapered mouth, so that the paddle plate starts to rotate, leaks the installation mouth, and the gas is ejected and acts on the surface of the lens, and when the paddle plate drives the redirecting block to rotate a certain angle, the flexible baffle plate contacts the inner wall of the tapered mouth to form a blocking and sealing effect, and the gas blown out from the end of the tapered mouth acts on the other side of the redirecting block, so that the paddle plate starts to rotate in the opposite direction, so as to clean the surface of the laser lens, so that the laser can be emitted along a normal path, and the accuracy of the created three-dimensional model is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure enlargement at point A;

[0018] Figure 3It is a schematic diagram of the planar structure of the laser probe body of the utility model;

[0019] Figure 4 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0020] Figure 5 It is a structural schematic diagram of the paddle plate and the direction-changing block of the utility model;

[0021] Figure 6 It is a cross-sectional schematic diagram of the paddle of the utility model;

[0022] Figure 7 for Figure 6 A magnified schematic diagram of the structure at C in the middle;

[0023] Figure 8 It is a structural schematic diagram of the elastic telescopic rod and the electromagnet of the utility model;

[0024] Fig. 9 It is a schematic diagram of the movement change of the paddle when the gas passes through the conical port of the utility model.

[0025] The numbers in the figure represent: 1. Laser probe body; 101. Mounting port; 102. Conical port; 103. Annular groove; 2. Rotating ring; 3. Cleaning piece; 301. Dial plate; 302. Direction-changing block; 3021. Flexible baffle; 303. Limiting hole; 304. Magnetic block; 305. Elastic telescopic rod; 306. Electromagnet; 307. Positioning rod. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0027] The present invention will be further described below in conjunction with the embodiments.

[0028] Embodiment: A smart boundary laser probe for a three-dimensional scanner, referring to the attached Figure 1 -Attached Fig. 9, comprising a laser probe body 1, and a rotating ring 2 rotatably mounted at one end of the laser probe body 1, the inner arc surface where the laser probe body 1 contacts the rotating ring 2 is provided with multiple groups of mounting openings 101 at equal intervals, and the mounting openings 101 are used to facilitate the installation of other components; the multiple groups of mounting openings 101 are all connected to a tapered opening 102, and the tapered opening 102 is provided to accelerate the passing gas; it is worth noting that the gas enters from the wider entrance of the tapered opening 102, and is compressed by the inner wall of the tapered opening 102, so that the gas can be accelerated when it is ejected from the other end of the tapered opening 102;

[0029] Among them, multiple groups of conical ports 102 are connected through an annular groove 103 provided at one end of the laser probe body 1. By providing the annular groove 103, gas can be transported to the inside of each conical port 102; the annular groove 103 is connected to an external gas source. By providing an external gas source, gas can be transported to the inside of the annular groove 103. It is worth noting that the external gas source is not shown in the figure, which is a product in the prior art, and the gas source is electrically connected to a controller, and the controller is electrically connected to a timer, and the timer measures the use time of the three-dimensional scanner. When the use time reaches the time preset in the timer, an electrical signal will be sent to the controller, and the controller will start the gas source and start to inflate the inside of the annular groove 103. By providing a rotating ring 2, after cleaning the lens of the laser probe for a long time, the mounting port 101, the conical port 102 and the inside of the annular groove 103 can be cleaned by disassembling the rotating ring 2 to ensure that the gas is in a clean state when it is output;

[0030] The cleaning member 3 is also included for cleaning the lens surface of the laser probe body 1, so as to clean the lens surface of the laser probe and ensure that the laser can be emitted along a normal path to avoid deviation caused by dust; the cleaning member 3 includes a dial plate 301 arranged inside the mounting opening 101, and the dial plate 301 is arranged, and the direction of gas blowing can be changed by rotating it, so as to speed up the mirror cleaning of the laser probe; a change block 302 is fixedly installed on the left side of the dial plate 301, and the change block 30 2 has a trapezoidal structure, the direction-changing block 302 is installed at the lower middle part of the dial plate 301, and the direction-changing block 302 is staggered with the conical opening 102, and a flexible baffle 3021 is fixedly installed at the end of the direction-changing block 302; by setting the direction-changing block 302 and the flexible baffle 3021, when the gas is blown out from the end of the conical opening 102, the direction of the gas blowing will be changed under the action of the flexible baffle 3021, and then it will act on the other side of the direction-changing block 302, thereby driving the dial plate 301 to rotate in the opposite direction.

[0031] Among them, a plurality of groups of limiting holes 303 are provided on the surface of the dial plate 301. The limiting holes 303 are provided to limit the position of the dial plate 301 and to play a limiting role when the dial plate 301 rotates; a recess is provided on the bottom surface of the limiting holes 303, and positioning grooves are symmetrically provided on the inner wall of the recess. By providing the positioning grooves, the dial plate 301 can be fixed in cooperation with other components when the dial plate 301 does not rotate to avoid deflection caused by external force and dust entering the interior of the mounting port 101; a magnetic block 304 is fixedly installed on the bottom surface of the recess. By providing the magnetic block 304, it can be coordinated with other components to achieve the fixation of the dial plate 301.

[0032] An elastic telescopic rod 305 is inserted into the limiting hole 303, and the elastic telescopic rod 305 is fixedly mounted on the inner wall of the mounting opening 101, and the elastic telescopic rod 305 is rotatably matched with the dial plate 301. By providing the elastic telescopic rod 305, the dial plate 301 can be supported, and the dial plate 301 can be rotated around it. It is worth noting that the elastic telescopic rod 305 is in a stretched state in the initial state;

[0033] Among them, an electromagnet 306 is fixedly installed at one end of the elastic telescopic rod 305. By setting the electromagnet 306, it can cooperate with the magnetic block 304 to fix the dial plate 301; it is worth mentioning that the electromagnet 306 is electrically connected to the controller. When the timer sends an electrical signal to the controller, the controller will synchronously control the electromagnet 306 to cut off the power. At the same time, with the cooperation of the stretched elastic telescopic rod 305, the electromagnet 306 is separated from the magnetic block 304 and moved out of the inside of the recess; two groups of positioning rods 307 are symmetrically installed on the surface of the electromagnet 306. The positioning rods 307 are initially inserted into the inside of the positioning groove for positioning the dial plate 301.

[0034] Specifically, when the three-dimensional scanner is in use, the timer will start to measure the time the three-dimensional scanner is used. When the use time reaches the time preset in the timer, an electrical signal will be sent to the controller, and the controller will start the gas source to start inflating the inside of the annular groove 103, and the controller will synchronously control the electromagnet 306 to cut off the power. At the same time, with the cooperation of the stretched elastic telescopic rod 305, the electromagnet 306 separates from the magnetic suction block 304 and moves out of the inside of the recess, so that the positioning rod 307 is also separated from the positioning groove, and the limitation of the dial plate 301 is released, so that the gas can act on one side of the turning block 302 after being accelerated through the tapered mouth 102, so that the dial plate 301 starts to rotate, and the installation mouth 101 leaks out, so that the gas The gas is ejected and acts on the surface of the lens. When the dial plate 301 drives the redirecting block 302 to rotate a certain angle, the flexible baffle 3021 blocks and seals one side of the redirecting block 302, so that the gas can be blown to the other side of the redirecting block 302. Due to the rotation of the dial plate 301, the space between the other side of the redirecting block 302 and the tapered opening 102 becomes smaller, resulting in the force of the gas blown out between the other side of the redirecting block 302 and the tapered opening 102 beginning to be greater than the force first acting on one side of the redirecting block 302, thereby causing the dial plate 301 to start rotating in the opposite direction, changing the direction of the gas blowing, and realizing rapid cleaning of the surface of the laser lens, so that the laser can be emitted along the normal path, thereby ensuring the accuracy of the created three-dimensional model.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent boundary laser probe for a three-dimensional scanner, comprising a laser probe body (1), characterized in that: Also includes: A rotating ring (2) is rotatably mounted on one end of the laser probe body (1), wherein the inner arc surface where the laser probe body (1) and the rotating ring (2) are in contact is provided with a plurality of groups of mounting openings (101) at equal intervals; A cleaning member (3) for cleaning the lens surface of a laser probe body (1), the cleaning member (3) comprising a dial plate (301) arranged inside a mounting opening (101), a direction-changing block (302) being fixedly mounted on a side of the dial plate (301) away from the center of the laser probe body (1), a plurality of groups of limiting holes (303) being provided on the surface of the dial plate (301), elastic telescopic rods (305) being inserted into the insides of the limiting holes (303), an electromagnet (306) being fixedly mounted on one end of the elastic telescopic rod (305), and two groups of positioning rods (307) being symmetrically mounted on the surface of the electromagnet (306).

2. The intelligent boundary laser probe of a three-dimensional scanner according to claim 1, characterized in that: The plurality of groups of mounting ports (101) are all connected to the tapered ports (102), and the plurality of groups of tapered ports (102) are all connected via an annular groove (103) provided at one end of the laser probe body (1), and the annular groove (103) is connected to an external air source.

3. The intelligent boundary laser probe of a three-dimensional scanner according to claim 2, characterized in that: The direction-changing block (302) has a trapezoidal structure. The direction-changing block (302) is installed at a lower middle position of the dial plate (301). The direction-changing block (302) and the tapered opening (102) are staggered. A flexible baffle (3021) is fixedly installed at the end of the direction-changing block (302).

4. The intelligent boundary laser probe of a three-dimensional scanner according to claim 1, characterized in that: The bottom surface of the limiting hole (303) is provided with a notch, and the inner wall of the notch is symmetrically provided with positioning grooves, and a magnetic attraction block (304) is fixedly mounted on the bottom surface of the notch.

5. The intelligent boundary laser probe of a three-dimensional scanner according to claim 2, characterized in that: The elastic telescopic rod (305) is fixedly mounted on the inner wall of the mounting opening (101), and the elastic telescopic rod (305) is rotationally matched with the shifting plate (301).

6. The intelligent boundary laser probe of a three-dimensional scanner according to claim 5, characterized in that: The positioning rod (307) is initially inserted into the positioning groove and is used to position the paddle (301).

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