Adapter and three-dimensional scanning system
By designing an adapter and using expansion and operating components to adjust the volume of the measuring component, the problem of low efficiency and accuracy in hole position parameter measurement in existing technologies is solved, achieving efficient and accurate hole position parameter measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-10
AI Technical Summary
Existing technologies for measuring borehole parameters have low efficiency and accuracy, and require specialized measuring equipment and complex operations, which affect measurement efficiency and accuracy.
An adapter is used, which includes an adapter body, a measuring element, an expansion element, and an operating element. The operating element controls the expansion element to move up and down within the measuring element, adjusting the volume of the measuring element to fix the hole position of the workpiece, thereby improving measurement accuracy and efficiency.
By fixing the workpiece hole positions, the measurement accuracy and efficiency of hole position parameters are improved, the dependence on 3D scanning equipment is reduced, and the adaptability of the adapter is enhanced.
Smart Images
Figure CN223985687U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of three-dimensional scanning equipment, in particular to an adapter and a three-dimensional scanning system. BACKGROUND
[0002] When the workpiece provided with the hole position is produced, the parameters of the hole position need to be measured to check whether the produced workpiece meets the standard. At present, the point cloud data of the workpiece is generally scanned by a three-dimensional scanning device, and the parameters of the hole position are measured by fitting the point cloud data to reconstruct the geometric characteristics of the workpiece. Alternatively, a contact three-coordinate measuring instrument can be used to measure the characteristic points on the surface of the workpiece by contacting the measuring probe of the instrument with the workpiece, so as to fit the geometric characteristics of the workpiece required to measure the parameters of the hole position. However, the above-mentioned parameter measurement method of the hole position needs a special measuring device, and the operation of the above-mentioned measuring device is relatively complex, thus reducing the efficiency of measuring the parameters of the hole position. Meanwhile, in the process of the above-mentioned parameter measurement method of the hole position, as much data as possible needs to be collected at different positions of the hole position, and if the data is not sufficient, the accuracy of measuring the parameters of the hole position will be affected.
[0003] Therefore, how to improve the efficiency and accuracy of measuring the parameters of the hole position is a technical problem to be solved in the field. CONTENT OF THE UTILITY MODEL
[0004] In order to solve the problems in the prior art, the purpose of the present application is to provide an adapter and a three-dimensional scanning system, which can improve the efficiency and accuracy of measuring the parameters of the hole position.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:
[0006] An adapter for measuring the parameters of a hole position in three-dimensional scanning, the adapter comprising an adapter main body, a measuring piece, an expanding piece and an operating piece. The measuring piece is a cylindrical structure, and the measuring piece is provided with a receiving hole penetrating through both ends of the measuring piece. One end of the measuring piece is connected with the adapter main body, and the other end of the measuring piece is provided with a split structure communicating the receiving hole and the outer peripheral surface of the measuring piece. The expanding piece is formed with an expanding part, and the maximum width of the expanding part along the radial direction of the measuring piece is greater than the minimum inner diameter of the receiving hole. The operating piece is arranged in the adapter main body and the receiving hole and connected with the expanding piece. The operating piece drives the expanding piece to move along the axial direction of the measuring piece, so that the expanding part is located in or out of the receiving hole.
[0007] Further, the expanding piece is a conical structure, and the outer diameter of one end of the expanding piece close to the measuring piece is the smallest. The expanding part is the part on the expanding piece with an outer diameter greater than the minimum inner diameter of the receiving hole.
[0008] Further, the expanding piece is a circular truncated cone structure, and the outer diameter of one end of the expanding piece close to the measuring piece is the smallest. The expanding part is the part on the expanding piece with an outer diameter greater than the minimum inner diameter of the receiving hole.
[0009] Furthermore, the operating component is a shaft with an external thread, and the adapter body has a first threaded hole. The operating component passes through the first threaded hole and the receiving hole, and the axis of the first threaded hole coincides with the axis of the receiving hole.
[0010] Furthermore, the adapter includes a knob for driving the operation member to rotate, the knob being fixed to the end of the operation member away from the expansion member.
[0011] Furthermore, the adapter includes a rotating member rotatably connected to the adapter body, the rotating member having a second threaded hole, the operating member being a shaft with an external thread, the operating member passing through the second threaded hole, the adapter body, and the receiving hole, the axis of the second threaded hole coinciding with the axis of the receiving hole.
[0012] Furthermore, the receiving hole has an expanded state and an initial state. When the expanded part is located inside the receiving hole, the receiving hole is in an expanded state, and the distance between the outer peripheral surface of the measuring piece and the axis of the receiving hole increases. When the expanded part is located outside the receiving hole, the receiving hole is in an initial state, and the receiving hole has a minimum inner diameter.
[0013] Furthermore, there are multiple crack structures, which are evenly distributed along the axis of the measuring piece.
[0014] Furthermore, the adapter also includes a marker point located at a preset position relative to the adapter body, the marker point being located on the adapter body or detachably connected to the adapter body.
[0015] To achieve the above objectives, this application adopts the following technical solution:
[0016] A three-dimensional scanning system includes the adapter described above.
[0017] The aforementioned adapter controls the expansion member to move up and down within the measuring component via an operating mechanism. This allows the measuring component to expand or contract, adjusting its volume to ensure it is fixed to the workpiece's hole position after expansion. This prevents the adapter from shaking during 3D scanning, thus improving the accuracy of the adapter's hole position parameter measurements. Furthermore, once the measuring component is fixed to the hole, the position of the hole's central axis can be obtained by measuring the central axis of the measuring component, thereby increasing the adapter's efficiency in measuring hole position parameters. Attached Figure Description
[0018] Figure 1 This is a structural diagram of the adapter provided in an embodiment of this application.
[0019] Figure 2 This is a structural diagram of the first measuring device provided in the embodiments of this application.
[0020] Figure 3 This is a structural diagram of the second measuring device provided in an embodiment of this application.
[0021] Figure 4 The present application provides a structural diagram of the first type of expansion member.
[0022] Figure 5 This is a structural diagram of a second type of expansion member provided in an embodiment of this application.
[0023] Figure 6 This is a bottom structural diagram of the adapter provided in the embodiments of this application.
[0024] Figure 7 This is a structural diagram of the three-dimensional scanning system provided in an embodiment of this application. Detailed Implementation
[0025] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0026] It should be noted that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates at least two. Unless otherwise stated, terms such as "front," "back," "left," "right," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.
[0027] The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.
[0028] To clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The front, back, left, right, top, and bottom are shown to indicate the front, back, left, right, top, and bottom of adapter 100.
[0029] likeFigure 1 and Figure 2 As shown, this application provides an adapter 100 for measuring parameters of a hole position in 3D scanning. The adapter 100 includes an adapter body 11, a measuring element 12, an expansion element 13, and an operating element 14. The adapter body 11 is the main structure of the adapter 100 and supports the measuring element 12. The measuring element 12 is connected to the adapter body 11 and can be fixed within the hole position to be measured, thus fixing the relative position of the adapter body 11 and the hole position. The expansion element 13 is at least partially located within the measuring element 12, and is used to expand or contract the measuring element 12. When the expander 13 moves into the measuring member 12, it applies a force to the inner wall of the measuring member 12, causing the internal space of the measuring member 12 to expand. When the expander 13 moves outward from the measuring member 12, it removes the force applied to the inner wall of the measuring member 12, allowing the measuring member 12 to contract. This allows the volume of the measuring member 12 to be adjusted, enabling it to fit holes of different sizes. The operating member 14 controls the movement of the expander 13 within the measuring member 12, and the direction of movement of the measuring member 12 is... Figure 1 The adapter 100 can be adjusted vertically to change the volume of the measuring element 12.
[0030] Specifically, the measuring element 12 has a cylindrical structure to fit the hole to be measured. The measuring element 12 has a receiving hole 121 that extends through both ends of the measuring element 12. Furthermore, one end of the measuring element 12 is connected to the adapter body 11, and the other end of the measuring element 12 has a slit structure 122 that connects the receiving hole 121 and the outer peripheral surface of the measuring element 12.
[0031] With the above configuration, the slit structure 122 allows the measuring element 12 to expand or contract when the expanding element 13 moves within the receiving hole 121, enabling adjustment of the volume of the measuring element 12. This allows the outer peripheral surface of the measuring element 12 to contact holes of different sizes, thereby fixing the relative position of the adapter body 11 and the hole, preventing the adapter body 11 from shaking during 3D scanning and improving the accuracy of the hole position parameters. Simultaneously, the position of the central axis of the measuring element 12 is a known parameter. After placing the measuring element 12 into the hole on the workpiece and fixing it there, the central axis of the measuring element 12 and the central axis of the hole are aligned. The position of the central axis of the hole can be confirmed by the position of the central axis of the measuring element 12, facilitating the confirmation of the relative position of the hole in the workpiece and improving the efficiency of the adapter 100 in measuring hole position parameters.
[0032] In this application, the slit structure 122 has a first opening, a second opening, and a third opening. The first opening is located on the end face of the measuring member 12 away from the adapter body 11, the second opening is located on the outer peripheral surface of the measuring member 12, and the third opening is located on the inner wall of the receiving hole 121. With this arrangement, the multiple openings allow the slit structure 122 to expand or contract the measuring member 12 as it moves up and down within the measuring member 12. This allows the measuring member 12 to be adapted to holes of different sizes by adjusting its volume, thereby improving the accuracy of the parameters of the measuring hole position measured by the adapter 100.
[0033] Meanwhile, when the adapter 100 measures the parameters of the hole position, the measuring element 12 is fixed in the hole position of the workpiece. The position of the central axis of the hole position can be determined by the central axis of the measuring element 12. Therefore, when measuring the hole position parameters, it is not necessary to use a three-dimensional scanning device (such as a three-dimensional scanner), and the parameters of the hole position that are difficult to be captured by the three-dimensional scanning device can be obtained, thereby improving the adaptability of the adapter 100 when measuring the hole position.
[0034] It should be noted that this application does not impose any restrictions on the specific structure of the crack structure 122, as long as the measuring element 12 can be adjusted in volume.
[0035] In this embodiment, the expansion member 13 is formed with an expansion portion 131, the maximum width of the expansion portion 131 along the radial direction of the measuring member 12 is greater than the minimum inner diameter of the receiving hole 121.
[0036] With the above configuration, when the volume of the measuring element 12 needs to be expanded, the expansion element 13 moves into the measuring element 12. When the expansion part 131 enters the receiving hole 121, the expansion part 131 contacts the inner wall of the receiving hole 121 and applies force, causing the slit structure 122 to expand outward, so that the volume of the measuring element 12 is expanded until the measuring element 12 abuts against and is fixed to the inner wall of the hole of the workpiece. This helps to improve the stability of the measuring element 12 when fixing the relative position of the adapter body 11 and the hole, thereby improving the accuracy of the parameters of the measuring hole of the adapter 100. When the volume of the measuring element 12 needs to be reduced, that is, when the measuring element 12 needs to be removed from the hole, the expansion element 13 moves outward from the measuring element 12, so that the expansion part 131 moves away from the inner wall of the receiving hole 121, thereby gradually reducing the force exerted by the expansion part 131 on the inner wall of the receiving hole 121, so that the crack structure 122 contracts, thereby reducing the volume of the measuring element 12, and then the measuring element 12 can be removed from the hole of the workpiece.
[0037] More specifically, the operating member 14 passes through the adapter body 11 and the receiving hole 121, and is connected to the expansion member 13, thereby enabling the operating member 14 to drive the expansion member 13 to move axially along the measuring member 12, so that the expansion portion 131 is located inside or outside the receiving hole 121. Through this arrangement, the operating member 14 can increase the speed of the expansion member 13's vertical movement, thereby increasing the speed of the measuring member 12's volume adjustment, thus improving the efficiency of the measuring member 12 in adapting to holes of different sizes, and further improving the efficiency of the adapter 100 in measuring hole position parameters. Simultaneously, the operating member 14 can also improve the accuracy of the expansion member 13's movement position, thereby ensuring a firm engagement between the measuring member 12 and the hole to be measured, thus preventing the adapter body 11 from shaking during 3D scanning, and improving the accuracy of the adapter 100 in measuring hole position parameters.
[0038] like Figure 4 As shown, in one embodiment, the expansion member 13 has a conical structure. The outer diameter of the expansion member 13 is smallest at the end closest to the measuring member 12, and the expansion portion 131 is the part of the expansion member 13 whose outer diameter is larger than the smallest inner diameter of the receiving hole 121. By setting the expansion member 13 to a conical structure, the diameter of the horizontal cross-section of the expansion member 13 changes more gradually along the axial direction. This results in a more gradual expansion or contraction of the measuring member 12 when the expansion member 13 moves within the receiving hole 121. This allows the measuring member 12 to accurately adjust its volume to fit holes of different sizes, thereby improving the stability of the relative position between the measuring member 12 and the adapter body 11 and the hole, and thus improving the accuracy of the parameters measured by the adapter 100. Furthermore, the gradual expansion or contraction of the measuring member 12 also prevents it from adjusting its volume too quickly, thus avoiding excessive reaction force when the measuring member 12 abuts against the inner wall of the hole, and extending the service life of the measuring member 12.
[0039] like Figure 5 As shown, in one embodiment, the expansion member 13 is a frustum structure. The outer diameter of the expansion member 13 is smallest at the end closest to the measuring member 12, and the expansion portion 131 is the part of the expansion member 13 whose outer diameter is larger than the smallest inner diameter of the receiving hole 121. With the above arrangement, the minimum diameter of the horizontal cross-section of the frustum structure expansion member 13 is much larger than the minimum diameter of the horizontal cross-section of the conical structure expansion member 13. Therefore, when the measuring member 12 moves the same distance, the frustum structure expansion member 13 allows the measuring member 12 to expand or contract to a greater extent than the conical structure expansion member 13. This allows the measuring member 12 to effectively fix the relative position of the adapter body 11 and the hole, and also improves the efficiency of adjusting the volume of the measuring member 12 to adapt to holes of different sizes, thereby improving the accuracy and efficiency of the adapter 100 in measuring the parameters of the hole.
[0040] likeFigure 2 and Figure 6 As shown, in one embodiment, the operating member 14 is a shaft with an external thread 141. The adapter body 11 has a first threaded hole 111. The operating member 14 passes through the first threaded hole 111 and the receiving hole 121. The axis of the first threaded hole 111 coincides with the axis of the receiving hole 121.
[0041] With the above configuration, the external thread 141 on the operating member 14 is adapted to the first threaded hole 111 on the adapter body 11. This allows the operating member 14 to be rotated, enabling it to move up and down within the receiving hole 121. This, in turn, controls the up and down movement of the expansion member 13 within the receiving hole 121, thereby adjusting the volume of the measuring member 12. The measuring member 12 then engages with the hole on the workpiece, thus fixing the adapter body 11 and allowing the adapter 100 to measure the hole position parameters. Furthermore, the threaded and threaded hole assembly improves the accuracy of the operating member 14 in controlling the up and down movement of the expansion member 13, thereby increasing the firmness of the engagement between the measuring member 12 and the hole on the workpiece, and ultimately improving the accuracy of the adapter 100 in measuring the hole position parameters.
[0042] For example, the adapter 100 includes a knob 15 for driving the operation member 14 to rotate, and the knob 15 is fixed to the end of the operation member 14 away from the expansion member 13. With the above configuration, the knob 15 is easy for the operator to hold and rotate. By rotating the knob 15, the operator can control the rotation of the operation member 14, so that the operation member 14 can move up and down, thereby reducing the difficulty of adjusting the volume of the measuring member 12 and improving the efficiency of the adapter 100 in measuring the parameters of the hole position.
[0043] like Figure 3 As shown, in another embodiment, the adapter 100 includes a rotating member 16 rotatably connected to the adapter body 11, meaning that the adapter 100 does not include the aforementioned knob 15. The rotating member 16 has a second threaded hole 161, and the operating member 14 is a shaft with an external thread 141. The operating member 14 passes through the second threaded hole 161, the adapter body 11, and the receiving hole 121, with the axis of the second threaded hole 161 coinciding with the axis of the receiving hole 121.
[0044] With the above configuration, rotating the rotating component 16 allows the operating component 14 to move up and down within the second threaded hole 161, thereby adjusting the position of the expansion component 13. Simultaneously, during the adjustment of the expansion component 13's position, the movement of the expansion component 13 can be obtained by observing the change in the length of the operating component 14 protruding from the second threaded hole 161. This improves the accuracy of the operating component 14 in controlling the movement of the expansion component 13 within the receiving hole 121, thereby enhancing the stability of the measuring component 12 in fixing the adapter body 11 and improving the accuracy of the adapter 100 in detecting hole position parameters.
[0045] In one embodiment, the receiving hole 121 has an expanded state and an initial state. When the expansion portion 131 is located inside the receiving hole 121, the receiving hole 121 is in an expanded state, and the distance between the outer peripheral surface of the measuring member 12 and the axis of the receiving hole 121 increases. When the expansion portion 131 is located outside the receiving hole 121, the receiving hole 121 is in an initial state, and the receiving hole 121 has a minimum inner diameter.
[0046] With the above configuration, the expander 13 moves into the measuring member 12, causing the expander portion 131 to enter the receiving hole 121, thereby expanding the receiving hole 121 and increasing the volume of the measuring member 12. This allows the measuring member 12 to engage with the hole on the workpiece, thus fixing the adapter body 11 and enabling the adapter 100 to measure the hole position parameters. The expander 13 moves outward from the measuring member 12, causing the expander portion 131 to exit the receiving hole 121, restoring the receiving hole 121 to its initial state and reducing the volume of the measuring member 12. After the adapter 100 has measured the hole position parameters, the measuring member 12 can be removed from the hole in the workpiece, separating the adapter 100 from the workpiece.
[0047] As one implementation, there are multiple slit structures 122. With the above arrangement, the measuring element 12 can be expanded or reduced when adjusting its volume, so that the central axis of the measuring element 12 after volume adjustment is basically coincident with the central axis of the measuring element 12 before volume adjustment, thereby improving the accuracy of the parameters of the measuring hole position of the adapter 100.
[0048] In this embodiment, multiple slit structures 122 are evenly distributed along the axis of the measuring member 12. This arrangement ensures that the central axis of the measuring member 12 when the receiving hole 121 is in an expanded state is substantially coincident with the central axis of the measuring member 12 when the receiving hole 121 is in its initial state, thereby improving the accuracy of the parameters of the measuring hole position measured by the adapter 100.
[0049] like Figure 1 As shown, in one embodiment, the adapter 100 also includes a marker point 17 positioned relative to the adapter body 11 at a preset location. In this application, a mapping relationship between the marker point 17 and the central axis of the measuring component 12 is pre-stored in a database. Through the above setup, the position of the marker point 17 is obtained using a 3D scanning device, and then, based on the mapping relationship between the marker point 17 and the central axis of the measuring component 12, the axial position of the hole can be obtained, thereby acquiring the parameters of the hole and improving the efficiency of the adapter 100 in measuring the hole parameters. In this application, the 3D scanning device can be a monocular camera or a multi-view camera, and no limitation is made herein.
[0050] Specifically, the marker point 17 is located on or detachably connected to the adapter body 11. With this configuration, depending on the requirements of the measured hole position parameters, the marker point 17 can be directly set on the adapter body 11, or the marker point 17 can be set on the detachable component, and then the detachable component can be fixed to the adapter body 11. This avoids the 3D scanning device being unable to accurately obtain the position of the marker point 17, thereby improving the accuracy of the adapter 100 in measuring the hole position parameters. In this application, after the marker point 17 is fixed to the detachable component, the connection method between the detachable component and the adapter body 11 can be a plug-in connection.
[0051] It should be noted that this application does not restrict the connection method between the marker point 17 and the adapter body 11, as long as the connection between the marker point 17 and the adapter body 11 is satisfied.
[0052] like Figure 7 As shown, this application also provides a three-dimensional scanning system 200, which includes an adapter 100. With the above configuration, the three-dimensional scanning system 200 can measure the parameters of a hole position through the adapter 100, thereby improving the efficiency and accuracy of the adapter 100 in measuring the hole position parameters.
[0053] In this application, when measuring the parameters of the hole position using the 3D scanning system 200:
[0054] First, the marker data of several marker points 17 are bound to the type of adapter 100. The marker data includes identification data and positioning data; the identification data is used to bind to the type of adapter 100, and the positioning data is used to obtain the spatial position of the marker points 17. Since the adapter 100 of this application includes a measuring element 12, the mapping relationship between the central axis position of the measuring element 12 and the spatial position of the marker points 17 needs to be obtained first by scanning with the 3D scanning system 200. Then, the mapping relationship between the central axis position of the measuring element 12 and the spatial position of the marker points 17, the type of adapter 100, and the marker data of the marker points 17 are all stored in a database to facilitate subsequent retrieval by the 3D scanning system 200 during the measurement of hole position parameters.
[0055] Secondly, since this application measures hole position parameters, the feature to be measured is the hole position, meaning the type of feature to be measured obtained in this application is the hole position. The 3D scanning system 200 acquires the marker point data of marker point 17 to obtain the mapping relationship between the central axis of the measuring component 12 and marker point 17 from the database. Then, the measuring component 12 in its initial state is placed inside the hole position of the workpiece, and the operating component 14 is controlled to drive the expansion component 13 to move, causing the volume of the measuring component 12 to expand until the measuring component 12 and the hole position on the workpiece are engaged and fixed. After completing the above steps, the central axis of the measuring component 12 and the central axis of the hole position are basically coincident. At this time, the mapping relationship between the central axis of the measuring component 12 and marker point 17 can be obtained through the marker point data of marker point 17 of the 3D scanning device, thereby enabling the acquisition of the central axis position of the hole position.
[0056] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. An adapter for measuring parameters of a hole site in a three-dimensional scanning, characterized in that the adapter comprises: an adapter body; a measuring member in a cylindrical structure, the measuring member being provided with a receiving hole penetrating through both ends of the measuring member, one end of the measuring member being connected to the adapter body, and the other end of the measuring member being provided with a split structure communicating the receiving hole and an outer peripheral surface of the measuring member; an expanding member formed with an expanding portion, the expanding portion having a maximum width along a radial direction of the measuring member greater than a minimum inner diameter of the receiving hole; and an operating member penetrating through the adapter body and the receiving hole and connected to the expanding member, the operating member driving the expanding member to move along an axial direction of the measuring member so that the expanding portion is located inside or outside the receiving hole.
2. The adapter according to claim 1, characterized in that the expanding member is in a conical structure, an outer diameter of one end of the expanding member close to the measuring member being the smallest, and the expanding portion being a part of the expanding member having an outer diameter greater than the minimum inner diameter of the receiving hole.
3. The adapter according to claim 1, characterized in that the expanding member is in a circular truncated cone structure, an outer diameter of one end of the expanding member close to the measuring member being the smallest, and the expanding portion being a part of the expanding member having an outer diameter greater than the minimum inner diameter of the receiving hole.
4. The adapter according to claim 1, characterized in that the operating member is a shaft body and is formed with external threads, the adapter body is provided with a first threaded hole, the operating member penetrates through the first threaded hole and the receiving hole, and an axis of the first threaded hole coincides with an axis of the receiving hole.
5. The adapter according to claim 4, characterized in that the adapter comprises a knob for driving the operating member to rotate, the knob being fixed to one end of the operating member away from the expanding member.
6. The adapter according to claim 1, characterized in that the adapter comprises a rotating member rotatably connected to the adapter body, the rotating member is provided with a second threaded hole, the operating member is a shaft body and is formed with external threads, the operating member penetrates through the second threaded hole, the adapter body and the receiving hole, and an axis of the second threaded hole coincides with an axis of the receiving hole.
7. The adapter according to claim 1, characterized in that the receiving hole has an expanded state and an initial state, when the expanding portion is located inside the receiving hole, the receiving hole is in the expanded state, and a distance between an outer peripheral surface of the measuring member and an axis of the receiving hole increases; when the expanding portion is located outside the receiving hole, the receiving hole is in the initial state, and the receiving hole has the minimum inner diameter.
8. The adapter according to claim 1, characterized in that the split structure has a plurality of split structures, and the plurality of split structures are uniformly distributed along an axis of the measuring member.
9. The adapter according to claim 1, The adapter further comprises a mark point in a preset position relative to the adapting body, which is located on the adapting body or detachably connected with the adapting body.
10. A three-dimensional scanning system, characterized in that, The three-dimensional scanning system comprises the adapter according to any one of claims 1 to 9.