Tracking instrument and tracking type three-dimensional scanner

Abstract

The application requests to protect a tracker and a tracking type three-dimensional scanner, the tracker comprises a main shell, an image acquisition assembly and a mainboard, the main shell is configured as a heat insulation member, the image acquisition assembly comprises a skeleton and a camera, at least part of the skeleton is arranged in the main shell and is connected with the main shell, and the camera is fixedly installed on the skeleton; the main board is installed on the main shell and electrically connected with the camera, and the main board and the framework are isolated through the main shell. In this way, heat isolation between the mainboard and the framework can be achieved, heat generated when the mainboard works cannot be transmitted to the framework, independence of the image acquisition assembly is achieved, thermal deformation caused by temperature rise of the framework can be effectively reduced when the tracker works, the stability of deformation of the framework after being heated is guaranteed, and the tracking accuracy is improved. Therefore, the stability of the position of the framework when the camera is supported is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to scanning instruments, and particularly relates to a tracker and a tracking type three-dimensional scanner. Background Art

[0002] The tracker is an important component of a tracking 3D scanner. It generally uses a binocular system to identify the object being measured. To this end, the relative positions of the cameras at both ends of the binocular system when assembled on the tracker are required to be stable and reliable to ensure that the cameras are firmly fixed in various usage scenarios.

[0003] Specifically, the two cameras are mounted at the two ends of the skeleton in the tracker, and the two cameras are electrically connected to the mainboard in the middle of the skeleton. At present, the existing trackers usually mount the mainboard directly on the skeleton, and set a heat shield between the mainboard and the skeleton for separation. However, it is difficult for the heat shield to effectively separate the heat generated by the mainboard from the skeleton, so that when the tracker is working, the skeleton will heat up due to receiving the heat generated by the mainboard; at the same time, the camera will also generate heat when working and conduct it to the skeleton, making the thermal deformation of the skeleton nonlinear, which will reduce the deformation stability of the skeleton under heat, thereby affecting the stability of the position of the skeleton when supporting the camera. Utility Model Content

[0004] In view of this, it is necessary to provide a tracker and a tracking 3D scanner for solving the above technical problems.

[0005] A tracker, the tracker comprising:

[0006] a main housing configured as a thermal insulator;

[0007] An image acquisition component, comprising a frame and a camera, wherein the frame is at least partially disposed in the main housing and connected to the main housing, and the camera is fixedly mounted on the frame;

[0008] A mainboard is mounted on the main housing and electrically connected to the camera, and the mainboard is isolated from the frame by the main housing.

[0009] It can be understood that the main shell is used to thermally isolate the mainboard from the frame, so that the heat generated by the mainboard when working will not be transferred to the frame, and the independence of the image acquisition component is achieved. This can effectively reduce the thermal deformation caused by the temperature rise of the frame, ensure the stability of the deformation of the frame after heating, and thus improve the stability of the frame's position when supporting the camera.

[0010] In one of the embodiments, a plurality of bosses are formed on the main shell, the main board is abutted against and connected to the plurality of bosses, and the main board is assembled to the main shell.

[0011] It is understandable that the main shell uses a plurality of bosses to support the main board, which can reduce the contact area between the main shell and the main board and ensure that the heat generated by the main board during operation will not be transferred to the frame.

[0012] In one embodiment, the tracker further comprises a rear shell, the rear shell is mounted on the main shell, and the rear shell and the main shell can be enclosed to form a closed chamber;

[0013] Wherein, the mainboard is arranged in the sealed chamber.

[0014] It can be understood that the mainboard is arranged in a closed chamber formed by the rear shell and the main shell, which can effectively protect the mainboard and ensure the normal operation of the mainboard.

[0015] In one of the embodiments, a heat sink is disposed on the rear housing, the heat sink is thermally connected to the mainboard, and the heat generated by the mainboard when working can be transferred outwards through the heat sink.

[0016] It is understandable that the heat sink on the rear shell is used to dissipate the heat of the mainboard, so that the heat generated by the mainboard when working can be discharged in time through the radiator, which can further ensure that the heat generated by the mainboard when working will not be transferred to the frame.

[0017] In one of the embodiments, the skeleton is configured as an integral metal machined part.

[0018] It can be understood that the skeleton is configured as an integrated metal machined part, which can facilitate the production and preparation of the skeleton and ensure the structural accuracy of the skeleton.

[0019] In one embodiment, along the length direction of the skeleton, the cross-sectional areas of various parts on the skeleton are equal to each other.

[0020] It can be understood that making the cross-sectional area of ​​the skeleton equal everywhere allows the heat generated when the camera is working to be evenly conducted on the skeleton, which ensures the linearity of the thermal deformation of the skeleton and facilitates the subsequent cooling treatment of the skeleton.

[0021] In one of the embodiments, a plurality of reinforcing ribs are provided inside the frame, and the plurality of reinforcing ribs are arranged in a cross-like manner.

[0022] It is understandable that a plurality of reinforcing ribs are cross-arranged inside the frame, which can improve the structural strength of the frame and facilitate heat dissipation of the frame during heat conduction.

[0023] In one of the embodiments, the camera includes an image acquisition board;

[0024] Therein, a plurality of positioning posts are formed on the frame, and the plurality of positioning posts are arranged at the periphery of the image acquisition board and can respectively abut against the outer peripheral surface of the image acquisition board, and the image acquisition board and the frame are connected via a connecting piece.

[0025] It is understandable that multiple positioning columns are used to limit the assembly of the image acquisition board on the frame, and then the two are fixed with connecting parts. This can facilitate the assembly of the image acquisition board on the frame and ensure the accuracy of the position of the image acquisition board when assembled on the frame.

[0026] In one embodiment, the camera further comprises a lens, and the lens is connected to the frame in a threaded manner.

[0027] It is understandable that the lens is assembled to the frame by means of threads, which makes it easier to assemble the lens on the frame.

[0028] In addition, the present application also provides a tracking three-dimensional scanner, including the tracker described above.

[0029] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0030] The tracker and tracking three-dimensional scanner for which protection is sought in the present application use a main shell to thermally isolate the mainboard from the frame, so that the heat generated by the mainboard when working will not be transferred to the frame, and the independence of the image acquisition component is achieved. This can effectively reduce the thermal deformation caused by the temperature rise of the frame, ensure the stability of the deformation of the frame after heating, and thus improve the stability of the position of the frame when supporting the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 An exploded view of a tracker provided in one embodiment of the present application;

[0033] Figure 2 A schematic diagram of a partial structure of an image acquisition component provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of the structure of a skeleton provided in one embodiment of the present application;

[0035] Figure 4A schematic diagram of a partial structure of a skeleton from another perspective provided in an embodiment of the present application;

[0036] Figure 5 This is an assembly exploded view of the frame, image acquisition board and lens provided in one embodiment of the present application.

[0037] Figure numerals: 100, tracker; 10, main shell; 11, boss; 20, image acquisition component; 21, frame; 211, reinforcing rib; 212, positioning column; 22, camera; 221, image acquisition board; 222, lens; 30, main board; 40, back shell; 41, radiator; 101, connector. DETAILED DESCRIPTION

[0038] 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 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.

[0039] It should be noted that when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may be a central element. When an element is considered to be "provided on" another element, it may be directly provided on the other element or there may be a central element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be a central element at the same time.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] like Figure 1As shown, the tracker 100 provided in one embodiment of the present application includes a main housing 10, an image acquisition component 20 and a main board 30. The main housing 10 is configured as a heat insulating member. The image acquisition component 20 includes a frame 21 and a camera 22. The frame 21 is at least partially disposed in the main housing 10 and connected to the main housing 10. The camera 22 is fixedly mounted on the frame 21. The main board 30 is mounted on the main housing 10 and electrically connected to the camera 22. In addition, the main board 30 and the frame 21 are isolated by the main housing 10. In other words, the tracker 100 of the present application uses the main housing 10 to thermally isolate the main board 30 from the frame 21. Here, the main housing 10 is configured as a plastic board, a glass wool board, etc.

[0042] It can be understood that the tracker 100 of the present application uses the main housing 10 to thermally isolate the mainboard 30 from the frame 21, so that the heat generated by the mainboard 30 when working will not be transferred to the frame 21, so that the independence of the image acquisition component 20 can be achieved, so that the tracker 100 can effectively reduce the thermal deformation caused by the temperature rise of the frame 21 when working, and ensure the stability of the deformation of the frame 21 after being heated, thereby improving the stability of the position of the frame 21 when supporting the camera 22. It should be noted that since the heat generated by the mainboard 30 when working will not be transferred to the frame 21, when the tracker 100 is working, the frame 21 will only be affected by the heat transferred by the camera 22 when working.

[0043] like Figure 1 As shown, in one embodiment, a plurality of bosses 11 are formed on the main housing 10, and the mainboard 30 is attached to and connected to the plurality of bosses 11, and the mainboard 30 is assembled to the main housing 10. That is to say, the main housing 10 of this embodiment can use a plurality of bosses 11 to carry the mainboard 30, which can reduce the contact area between the main housing 10 and the mainboard 30, and ensure that the heat generated by the mainboard 30 when working will not be transferred to the skeleton 21. Here, the number of bosses 11 is four, and the mainboard 30 can be fixed to the bosses 11 by screws (not shown) passing through the mainboard 30. It should be noted that the mainboard 30 does not directly contact the main housing 10, so that the gap between the mainboard 30 and the main housing 10 is filled with air, and the air has a good heat insulation effect, which can prevent the part of the mainboard 30 other than the mainboard 30 contacting the bosses 11 from transferring heat to the main housing 10.

[0044] In one embodiment, the frame 21 is configured as an integrated metal machined part, so that the frame 21 can be integrally processed and formed according to the design, which can facilitate the production and preparation of the frame 21 and ensure the structural accuracy of the frame 21. Here, the camera 22 of this embodiment is directly assembled to the frame 21. Compared with the existing method of using a connecting plate (not shown) to realize the assembly between the camera 22 and the frame 21, it is not only convenient to assemble the camera 22 on the frame 21, but also solves the problem of uneven heat transfer of the frame caused by the sudden change of the cross-sectional area at the connection of the connecting plate. At the same time, it also reduces the assembly error between the camera 22 and the frame 21.

[0045] Along the length direction of the frame 21, the cross-sectional areas of various parts on the frame 21 are equal to each other. In other words, the cross-sectional area of ​​the frame 21 of this embodiment is equal everywhere, so that the heat generated by the camera 22 when working can be evenly conducted on the frame 21, which can ensure the linearity of the thermal deformation of the frame 21, so as to facilitate the subsequent cooling treatment of the frame 21.

[0046] like Figure 3 As shown, in one embodiment, a plurality of reinforcing ribs 211 are arranged in a cross-shaped manner in the skeleton 21, so that the structural strength of the skeleton 21 can be improved. By utilizing the arrangement of the reinforcing ribs 211, a concave cavity is formed inside the skeleton 21, so that the skeleton 21 can dissipate heat conveniently during heat conduction. Here, the plurality of reinforcing ribs 211 are arranged symmetrically with respect to the skeleton 21 in the width direction of the skeleton 21, so that the skeleton 21 can utilize the arrangement characteristics of the reinforcing ribs 211 to make the cross-sectional area of ​​the skeleton 21 equal everywhere. Of course, the arrangement of the reinforcing ribs in the skeleton 21 is not limited to that shown in the figure. For those skilled in the art, other forms of reinforcing ribs can also be used to make the cross-sectional area of ​​the skeleton 21 equal everywhere, or the reinforcing ribs only need to enhance the structural strength of the skeleton 21, without considering the cross-sectional area of ​​the skeleton 21 in the length direction, which will not be elaborated here.

[0047] like Figure 2 , Figure 4 , Figure 5As shown, in one embodiment, the camera 22 includes an image acquisition board 221, the image acquisition board 221 is electrically connected to the main board 30, and the image acquired by the image acquisition board 221 when working can be transmitted to the main board 30; wherein, a plurality of positioning posts 212 are formed on the frame 21, the plurality of positioning posts 212 are arranged on the periphery of the image acquisition board 221 and can respectively abut against the outer peripheral surface (not shown) of the image acquisition board 221, and the image acquisition board 221 and the frame 21 are connected through the connecting member 101. That is, when the image acquisition board 221 is assembled on the frame 21, the plurality of positioning posts 212 can be used to limit the assembly of the image acquisition board 221 on the frame 21, and then the connecting member 101 is used to fix the two, so that the assembly of the image acquisition board 221 on the frame 21 can be facilitated, and the accuracy of the position of the image acquisition board 221 when assembled on the frame 21 can be ensured. Here, there are two positioning posts 212 , which are disposed at diagonal positions of the image acquisition board 221 . The connector 101 can pass through the image acquisition board 221 and be threadedly connected to the frame 21 . Specifically, the connector 101 can be configured as a screw or a bolt.

[0048] like Figure 2 As shown, in one embodiment, the camera 22 further includes a lens 222, which is connected to the frame 21 in a threaded manner, so that the lens 222 can be easily assembled on the frame 21. It should be noted that the working principle of how the lens 222 cooperates with the image acquisition board 221 to achieve image acquisition when the tracker 100 is working can adopt existing conventional methods, which will not be elaborated here.

[0049] like Figure 1 As shown, in one embodiment, the tracker 100 further includes a rear shell 40, which is mounted on the main housing 10, and the rear shell 40 and the main housing 10 can be enclosed to form a sealed chamber (not shown), wherein the mainboard 30 is disposed in the sealed chamber. In other words, the rear shell 40 can cover the assembly of the mainboard 30 on the main housing 10, so that the mainboard 30 can be effectively protected and the normal operation of the mainboard 30 can be ensured.

[0050] like Figure 1 As shown, a heat sink 41 is provided on the rear housing 40, and the heat sink 41 is thermally connected to the mainboard 30, and the heat generated by the mainboard 30 when working can be transferred to the outside through the heat sink 41. That is, when the tracker 100 is working, the heat sink 41 on the rear housing 40 can be used to discharge the heat generated by the mainboard 30 when working, which can further ensure that the heat generated by the mainboard 30 when working will not be transferred to the frame 21. Here, the heat sink 41 is set as a heat sink fin, and the heat sink fin can directly contact the mainboard 30, so that the heat generated by the mainboard 30 when working can be directly discharged to the outside air through the heat sink fin.

[0051] As can be seen from the above, when the tracker 100 of the present application is working, the main housing 10 is used to insulate the mainboard 30 from the frame 21, and the heat sink 41 on the rear housing 40 is used to conduct the heat generated by the mainboard 30 when working to the outside air, so that the heat generated by the mainboard 30 when working will not be transferred to the frame 21, and the independence of the image acquisition component 20 is realized, which can effectively reduce the thermal deformation caused by the temperature rise of the frame 21, and ensure the stability of the deformation of the frame 21 after heating, thereby improving the stability of the position of the frame 21 when supporting the camera 22, and ensuring the equipment accuracy of the tracker 100. In addition, the frame 21 is set as an integrated metal machined part, and the positioning column 212 on the frame 21 is used to position the assembly of the image acquisition board 221 on the frame 21, so that the overall processing technology of the image acquisition component 20 is simple, the assembly is convenient, and the error accumulation caused by processing and assembly is reduced, which can meet the high-precision equipment requirements of the tracker and is conducive to the miniaturization of the structure of the tracker 100.

[0052] In addition, the present application also provides a tracking three-dimensional scanner, including the tracker 100 described above.

[0053] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A tracker, characterized in that: The tracker (100) comprises: A main housing (10) configured as a heat insulating member; An image acquisition component (20) comprises a frame (21) and a camera (22), wherein the frame (21) is at least partially disposed in the main housing (10) and connected to the main housing (10), and the camera (22) is fixedly mounted on the frame (21); A main board (30) is mounted on the main housing (10) and is electrically connected to the camera (22), and the main board (30) and the frame (21) are isolated by the main housing (10).

2. The tracker according to claim 1, characterized in that: A plurality of bosses (11) are formed on the main shell (10), the main board (30) is abutted against and connected to the plurality of bosses (11), and the main board (30) is assembled onto the main shell (10).

3. The tracker according to claim 1, characterized in that: The tracker (100) further comprises a rear shell (40), wherein the rear shell (40) is mounted on the main shell (10), and the rear shell (40) and the main shell (10) can be combined to form a closed chamber; Wherein, the main board (30) is arranged in the sealed chamber.

4. The tracker according to claim 3, characterized in that: The rear housing (40) is provided with a heat sink (41), the heat sink (41) is thermally connected to the main board (30), and the heat generated by the main board (30) when working can be transferred to the outside through the heat sink (41).

5. The tracker according to claim 1, characterized in that: The frame (21) is configured as an integral metal machined part.

6. The tracker according to claim 1, characterized in that: Along the length direction of the frame (21), the cross-sectional areas of various parts on the frame (21) are equal to each other.

7. The tracker according to claim 1 or 6, characterized in that: A plurality of reinforcing ribs (211) are arranged inside the frame (21), and the plurality of reinforcing ribs (211) are arranged in a cross-like manner.

8. The tracker according to claim 1, characterized in that: The camera (22) comprises an image acquisition board (221); A plurality of positioning posts (212) are formed on the frame (21), the plurality of positioning posts (212) are arranged on the periphery of the image acquisition board (221) and can respectively abut against the outer peripheral surface (2211) of the image acquisition board (221), and the image acquisition board (221) and the frame (21) are connected via a connecting piece (101).

9. The tracker according to claim 1, characterized in that: The camera (22) also includes a lens (222), and the lens (222) is connected to the frame (21) in a threaded manner.

10. A tracking three-dimensional scanner, characterized in that: The tracker (100) comprises any one of claims 1-9.

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