Marking point tool for three-dimensional reconstruction of cable joint

Abstract

The invention provides a marking point tool for three-dimensional reconstruction of a cable joint, and the tool comprises a clamping frame which is provided with a clamping space, the clamping space is used for accommodating a to-be-scanned shaft, at least part of the clamping frame is used for abutting against the circumferential outer wall of the to-be-scanned shaft, and a plurality of marking reference points are arranged on the clamping frame in the axial direction of the to-be-scanned shaft; the clamping frame is arranged on the supporting frame, and the height of the supporting frame in the vertical direction can be adjusted. The problem that a three-dimensional scanner in the prior art cannot completely scan the whole cable joint is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of three-dimensional scanning, and in particular to a marking point tool for three-dimensional reconstruction of a cable joint. Background Art

[0002] 3D optical measurement technology can accurately obtain the shape information of objects in 3D space through high-precision optical means, providing strong data support for various industrial designs and manufacturing. 3D optical measurement technology mainly relies on 3D scanners to perform non-contact measurements on objects, quickly obtain 3D position data on the surface of the measured object, and then these data are processed by specific algorithms and can be further converted into digital models, which greatly facilitates subsequent design, analysis and manufacturing.

[0003] When a 3D scanner performs non-contact measurement on an object, it is usually necessary to stick markers on the surface of the object or place targets around it as reference positions. However, since some parts of the cable connector, such as the main insulation, semi-conductive layer, and stress cone, have strict requirements on surface finish, it is impossible to directly stick markers on these parts to avoid contaminating or damaging the cable connector, resulting in the 3D scanner being unable to fully scan the entire cable connector. Summary of the invention

[0004] The main purpose of the present invention is to provide a marking point tool for three-dimensional reconstruction of a cable joint, so as to solve the problem that the three-dimensional scanner in the prior art cannot completely scan the entire cable joint.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a marking point tooling for three-dimensional reconstruction of cable connectors, comprising: a clamping frame, the clamping frame having a clamping space, the clamping space being used to accommodate the axis to be scanned, at least a portion of the clamping frame being used to abut against the circumferential outer wall of the axis to be scanned, and a plurality of marking reference points being arranged on the clamping frame along the axial direction of the axis to be scanned; and a supporting frame, the clamping frame being arranged on the supporting frame, and the height of the supporting frame being adjustable along the vertical direction.

[0006] Furthermore, the clamping frame includes two first support rods and two V-shaped connecting frames connected to each other, and the two first support rods and the two V-shaped connecting frames together form a clamping space. The two ends of each first support rod are respectively connected to the two V-shaped connecting frames, and the distance between the two first support rods in the vertical direction is a preset distance d, so that an opening is formed between the two first support rods for the axis to be scanned to enter the clamping space.

[0007] Furthermore, each V-shaped connecting frame includes a second support rod and a third support rod connected to each other, the two ends of a first support rod are respectively connected to the first ends of two second support rods, the two ends of another first support rod are respectively connected to the first ends of two third support rods, and the second end of each second support rod is connected to the second end of each corresponding third support rod.

[0008] Furthermore, along the extension direction of the first support rod, multiple marking reference points are arranged at intervals on the first support rod; along the extension direction of the second support rod, multiple marking reference points are arranged at intervals on the second support rod; along the extension direction of the third support rod, multiple marking reference points are arranged at intervals on the third support rod.

[0009] Furthermore, the extension direction of the second support rod and the extension direction of the third support rod of each V-shaped connecting frame are arranged perpendicular to the axial direction of the axis to be scanned, the angle θ between the second support rod and the third support rod is in the range of 30°≤θ≤90°, the length of the second support rod is L, and the preset distance d=L*sinθ.

[0010] Furthermore, the axis to be scanned includes a first axis segment, a second axis segment and a third axis segment, and the axis of the first axis segment and the axis of the second axis segment are arranged to coincide with each other; the diameter of the first axis segment is larger than the diameter of the second axis segment, the diameter of the second axis segment is the same as the diameter of the third axis segment, and the second axis segment and the third axis segment are respectively arranged at both ends of the first axis segment; the second support rod and the third support rod of a V-shaped connecting frame are both in contact with an axial end face of the first axis segment, and the second support rod and the third support rod of another V-shaped connecting frame are both in contact with the other axial end face of the first axis segment to axially limit the axis to be scanned; the second support rod and the third support rod of one V-shaped connecting frame are both in contact with the circumferential outer wall of the second axis segment, and the second support rod and the third support rod of another V-shaped connecting frame are both in contact with the circumferential outer wall of the third axis segment to radially limit the axis to be scanned.

[0011] Furthermore, the marking point tooling for three-dimensional reconstruction of the cable connector also includes a locking component, which includes an arc-shaped limit frame and a limit shaft. The two sides of the arc-shaped limit frame are respectively connected to two clamping frames, and the limit shaft is movably arranged on the arc-shaped limit frame along the radial direction of the axis to be scanned, so that the limit shaft abuts against the circumferential outer wall of the second axis segment or the circumferential outer wall of the third axis segment to limit the axis to be scanned.

[0012] Furthermore, there are two locking components, and the two locking components and the two V-shaped connecting frames are arranged in a one-to-one correspondence. The two ends of each arc-shaped limit frame are respectively connected to the second support rod and the third support rod of the corresponding V-shaped connecting frame, and the two limit shafts are respectively abutted against the circumferential outer wall of the second axis segment and the circumferential outer wall of the third axis segment; each locking component also includes a handle, the handle is connected to the corresponding limit shaft, and the limit shaft is threadedly connected to the corresponding arc-shaped limit frame, so that the handle can be rotated around the axis of the limit shaft to make the limit shaft move toward the direction close to the axis to be scanned until it abuts against the circumferential outer wall of the axis to be scanned.

[0013] Furthermore, the marking point tooling for three-dimensional reconstruction of the cable joint also includes a supporting vertical rod, which includes a fixed rod segment and a movable rod segment, both of which extend in the vertical direction, and the movable rod segment can be movably mounted on the fixed rod segment; the fixed rod segment is arranged on an installation base, the top end of the movable rod segment is connected to the support frame, and a plurality of installation positions are arranged on the fixed rod segment at intervals in the vertical direction, so that the height of the support frame can be adjusted by fixing the bottom end of the movable rod segment at any one of the plurality of installation positions.

[0014] Furthermore, a plurality of first mounting holes are arranged at intervals along the vertical direction on the fixed rod segment, and a plurality of second mounting holes are arranged at intervals along the vertical direction on the movable rod segment. The plurality of first mounting holes and the plurality of mounting positions are arranged in one-to-one correspondence. The marking point tooling for three-dimensional reconstruction of the cable connector also includes an insert and a U-shaped clamping part. The insert is used to be inserted into the first mounting hole and the second mounting hole. The U-shaped clamping part is connected to the insert, and the clamping axis of the U-shaped clamp is used to abut against the bottom end of the movable rod segment so that the bottom end of the movable rod segment is fixed at any one of the multiple mounting positions.

[0015] By applying the technical solution of the present invention, a marking point tooling for three-dimensional reconstruction of a cable connector includes a clamping frame and a supporting frame, wherein the clamping frame is arranged on the supporting frame, and the clamping frame has a clamping space, wherein the clamping space is used to accommodate the axis to be scanned, and the axis to be scanned is clamped and fixed on the clamping frame, and a plurality of marking reference points are arranged on the clamping frame, so that when the three-dimensional scanner scans the axis to be scanned, the marking reference points can be used as reference positions, and there is no need to directly paste the marking points on the axis to be scanned, so that the three-dimensional scanner can completely scan the entire axis to be scanned, and at the same time, the height of the axis to be scanned can be adjusted by adjusting the height of the supporting frame in the vertical direction, so that the height of the axis to be scanned is matched with the scanning height of the three-dimensional scanner, thereby ensuring that the three-dimensional scanner can scan and obtain a complete digital model of the axis to be scanned, thereby solving the problem in the prior art that the three-dimensional scanner cannot completely scan the entire cable connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of an embodiment of a marking point tool for three-dimensional reconstruction of a cable joint and an axis to be scanned according to the present invention is shown;

[0018] Figure 2 A schematic structural diagram of a V-shaped connecting frame of a marking point tool for three-dimensional reconstruction of a cable joint according to the present invention is shown;

[0019] Figure 3 A schematic structural diagram of a first support rod of a marking point tool for three-dimensional reconstruction of a cable joint according to the present invention is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Clamping frame; 40. Marking reference point; 20. Support frame; 4. First support rod; 2. Second support rod; 3. Third support rod; 31. First axis section; 32. Second axis section; 33. Third axis section; 7. Arc-shaped limit frame; 71. Limit axis; 9. Handle; 41. Fixed rod section; 42. Movable rod section; 13. First mounting hole; 11. Insertion piece; 12. U-shaped clamping piece; 131. Second mounting hole; 201. First fastening hole; 202. Third fastening hole. DETAILED DESCRIPTION

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0024] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0025] Please refer to Figures 1 to 3 The present invention provides a marking point tooling for three-dimensional reconstruction of a cable connector, comprising: a clamping frame 10, the clamping frame 10 having a clamping space, the clamping space being used to accommodate the axis to be scanned, at least a portion of the clamping frame 10 being used to abut against the circumferential outer wall of the axis to be scanned, and a plurality of marking reference points 40 being arranged on the clamping frame 10 along the axial direction of the axis to be scanned; and a support frame 20, the clamping frames 10 being arranged on the support frame 20, and the support frame 20 being arranged to be adjustable in height along the vertical direction.

[0026] The marking point tooling for three-dimensional reconstruction of the cable joint of the present invention includes a clamping frame 10 and a support frame 20. The clamping frame 10 is arranged on the support frame 20. The clamping frame 10 has a clamping space, and the clamping space is used to accommodate the axis to be scanned. The axis to be scanned is clamped and fixed on the clamping frame 10, and a plurality of marking reference points 40 are arranged on the clamping frame 10, so that when the three-dimensional scanner scans the axis to be scanned, the marking reference point 40 can be used as a reference position, and there is no need to directly paste the marking point on the axis to be scanned, so that the three-dimensional scanner can completely scan the entire axis to be scanned. At the same time, by adjusting the height of the support frame 20 along the vertical direction to adjust the height of the axis to be scanned, the height of the axis to be scanned is matched with the scanning height of the three-dimensional scanner, thereby ensuring that the three-dimensional scanner can scan and obtain a complete digital model of the axis to be scanned, thereby solving the problem that the three-dimensional scanner in the prior art cannot completely scan the entire cable joint.

[0027] Specifically, the axis to be scanned is a cable connector.

[0028] In this embodiment, the clamping frame 10 includes two first support rods 4 and two V-shaped connecting frames connected to each other. The two first support rods 4 and the two V-shaped connecting frames together form a clamping space. The two ends of each first support rod 4 are respectively connected to the two V-shaped connecting frames. The distance between the two first support rods 4 in the vertical direction is a preset distance d, so that an opening is formed between the two first support rods 4 for the axis to be scanned to enter the clamping space.

[0029] Specifically, an opening is formed between the two first support rods 4 so that the axis to be scanned can enter the clamping space from the opening, so that the clamping frame 10 can clamp and fix the axis to be scanned; the two first support rods 4 are arranged at intervals in the vertical direction, and the two ends of each first support rod 4 are respectively connected to two V-shaped connecting frames. Such an arrangement ensures the structural stability of the clamping frame 10, and further ensures the reliability of the clamping frame 10 on the axis to be scanned.

[0030] Specifically, the V-shaped connecting frame can stably accommodate and support the cable connector, thereby ensuring the stability of the cable connector during the three-dimensional scanning process.

[0031] Specifically, the plurality of marking reference points 40 arranged on the clamping frame 10 form an irregular dot matrix, and such an arrangement improves the accuracy and reliability of three-dimensional scanning.

[0032] In this embodiment, each V-shaped connecting frame includes a second support rod 2 and a third support rod 3 connected to each other, two ends of a first support rod 4 are respectively connected to the first ends of two second support rods 2, two ends of another first support rod 4 are respectively connected to the first ends of two third support rods 3, and the second end of each second support rod 2 is connected to the second end of each corresponding third support rod 3. Such a configuration ensures the structural stability of the clamping frame 10, and further ensures the clamping reliability of the clamping frame 10 on the scanning axis.

[0033] Specifically, the axis to be scanned is clamped between the second support rod 2 and the third support rod 3 .

[0034] Specifically, the second support rod 2 and the third support rod 3 are both provided with a first fastening hole 201, and the first support rod 4 is provided with a second fastening hole. By inserting a fastener (such as a bolt) through the first fastening hole 201 and the second fastening hole, the second support rod 2 and the first support rod 4 are fastened and connected, and the third support rod 3 and the first support rod 4 are fastened and connected.

[0035] Specifically, the second support rod 2 and the third support rod 3 have the same structure, which simplifies the manufacturing process of the marking point tooling for the three-dimensional reconstruction of the cable joint, reduces the production cost of the marking point tooling for the three-dimensional reconstruction of the cable joint, and ensures the symmetry and balance of the marking point tooling for the three-dimensional reconstruction of the cable joint; the first support rod 4 is a square column structure,

[0036] In this embodiment, along the extension direction of the first support rod 4, a plurality of marking reference points 40 are arranged at intervals on the first support rod 4; along the extension direction of the second support rod 2, a plurality of marking reference points 40 are arranged at intervals on the second support rod 2; along the extension direction of the third support rod 3, a plurality of marking reference points 40 are arranged at intervals on the third support rod 3.

[0037] Specifically, since the three-dimensional scanner scans the axis to be scanned multiple times when it moves along the axial direction of the axis to be scanned, the multiple marking reference points 40 arranged at intervals along the extension direction of the first support rod 4 can have corresponding marking reference points 40 as reference positions each time the three-dimensional scanner scans, thereby enabling the three-dimensional scanner to completely scan the entire axis to be scanned.

[0038] In this embodiment, the extension direction of the second support rod 2 and the extension direction of the third support rod 3 of each V-shaped connecting frame are arranged perpendicular to the axial direction of the axis to be scanned, the angle θ between the second support rod 2 and the third support rod 3 is in the range of 30°≤θ≤90°, the length of the second support rod 2 is L, and the preset distance d=L*sinθ.

[0039] Specifically, by setting the value range of the angle θ between the second support rod 2 and the third support rod 3 to 30°≤θ≤90°, the second support rod 2 and the third support rod 3 can clamp axes to be scanned of different diameters, thereby expanding the application range of the marking point tooling for three-dimensional reconstruction of cable connectors of the present invention.

[0040] In this embodiment, the axis to be scanned includes a first axis segment 31, a second axis segment 32 and a third axis segment 33, and the axis of the first axis segment 31 and the axis of the second axis segment 32 are arranged to coincide with each other; the diameter of the first axis segment 31 is larger than the diameter of the second axis segment 32, the diameter of the second axis segment 32 is the same as the diameter of the third axis segment 33, and the second axis segment 32 and the third axis segment 33 are respectively arranged at both ends of the first axis segment 31; the second support rod 2 and the third support rod 3 of one V-shaped connecting frame are both in contact with one axial end face of the first axis segment 31, and the second support rod 2 and the third support rod 3 of another V-shaped connecting frame are both in contact with the other axial end face of the first axis segment 31 to axially limit the axis to be scanned; the second support rod 2 and the third support rod 3 of one V-shaped connecting frame are both in contact with the circumferential outer wall of the second axis segment 32, and the second support rod 2 and the third support rod 3 of another V-shaped connecting frame are both in contact with the circumferential outer wall of the third axis segment 33 to radially limit the axis to be scanned.

[0041] Specifically, the second support rod 2 and the third support rod 3 of one V-shaped connecting frame are in contact with one axial end surface of the first shaft segment 31, and the second support rod 2 and the third support rod 3 of the other V-shaped connecting frame are in contact with the other axial end surface of the first shaft segment 31, so that the two V-shaped connecting frames can jointly limit the axial position of the scanning axis to prevent the scanning axis from moving along its axial direction.

[0042] Specifically, the second support rod 2 and the third support rod 3 of the V-shaped connecting frame abut against the circumferential outer wall of the second shaft segment 32 or the third shaft segment 33, so that the V-shaped connecting frame can radially limit the axis to be scanned to prevent the axis to be scanned from moving in its radial direction.

[0043] In this embodiment, the marking point tooling for three-dimensional reconstruction of the cable connector also includes a locking component, which includes an arc-shaped limit frame 7 and a limit shaft 71. The two sides of the arc-shaped limit frame 7 are respectively connected to two clamping frames 10. The limit shaft 71 can be movably arranged on the arc-shaped limit frame 7 along the radial direction of the axis to be scanned, so that the limit shaft 71 abuts against the circumferential outer wall of the second axis segment 32 or the circumferential outer wall of the third axis segment 33 to limit the axis to be scanned.

[0044] Specifically, the limiting shaft 71 abuts against the circumferential outer wall of the second shaft segment 32 or the circumferential outer wall of the third shaft segment 33 , so that the limiting shaft 71 can radially limit the axis to be scanned, further preventing the axis to be scanned from moving in its radial direction.

[0045] In this embodiment, there are two locking components, and the two locking components and the two V-shaped connecting frames are arranged in a one-to-one correspondence. The two ends of each arc-shaped limit frame 7 are respectively connected to the second support rod 2 and the third support rod 3 of the corresponding V-shaped connecting frame, and the two limit shafts 71 are respectively abutted against the circumferential outer wall of the second shaft segment 32 and the circumferential outer wall of the third shaft segment 33; each locking component also includes a handle 9, the handle 9 is connected to the corresponding limit shaft 71, and the limit shaft 71 is threadedly connected to the corresponding arc-shaped limit frame 7, so that the handle 9 can be rotated around the axis of the limit shaft 71 to make the limit shaft 71 move toward the direction close to the axis to be scanned until it abuts against the circumferential outer wall of the axis to be scanned.

[0046] Specifically, the two limiting shafts 71 respectively abut against the circumferential outer wall of the second shaft segment 32 and the circumferential outer wall of the third shaft segment 33, so that the two limiting shafts 71 radially limit the second shaft segment 32 and the third shaft segment 33 respectively, further ensuring the reliability of the limiting shaft 71 in radially limiting the scanning axis.

[0047] Specifically, the second support rod 2 and the third support rod 3 are both provided with a third fastening hole 202, and the arc-shaped limit frame 7 is provided with two fourth fastening holes. By passing fasteners (such as bolts) through the third fastening hole 202 and the fourth fastening hole, the second support rod 2 and the third support rod 3 are both fastened and connected to the arc-shaped limit frame 7.

[0048] In this embodiment, the marking point tooling for three-dimensional reconstruction of the cable connector also includes a supporting vertical rod, which includes a fixed rod segment 41 and a movable rod segment 42. The fixed rod segment 41 and the movable rod segment 42 both extend in the vertical direction. The movable rod segment 42 can be movably mounted on the fixed rod segment 41. The fixed rod segment 41 is set on the mounting base. The top of the movable rod segment 42 is connected to the support frame 20. A plurality of mounting positions are arranged at intervals along the vertical direction on the fixed rod segment 41, so that the height of the support frame 20 can be adjusted by fixing the bottom end of the movable rod segment 42 at any one of the plurality of mounting positions.

[0049] Specifically, by fixing the bottom end of the movable rod segment 42 at any one of a plurality of installation positions, the position of the movable rod segment 42 is adjusted, thereby adjusting the height of the support frame 20 .

[0050] In this embodiment, a plurality of first mounting holes 13 are arranged at intervals along the vertical direction on the fixed rod segment 41, and a plurality of second mounting holes 131 are arranged at intervals along the vertical direction on the movable rod segment 42. The plurality of first mounting holes 13 and the plurality of mounting positions are arranged in a one-to-one correspondence, and the marking point tooling for three-dimensional reconstruction of the cable connector also includes an insert 11 and a U-shaped clamping member 12. The insert 11 is used to be inserted into the first mounting hole 13 and the second mounting hole 131, and the U-shaped clamping member 12 is connected to the insert 11. The clamping axis of the U-shaped clamping member 12 is used to abut against the bottom end of the movable rod segment 42 so that the bottom end of the movable rod segment 42 is fixed at any one of the plurality of mounting positions.

[0051] Specifically, by inserting the insertion piece 11 into the first mounting hole 13 and the second mounting hole 131, the clamping axis of the U-shaped clamping piece 12 and the bottom end of the movable rod segment 42 are abutted to prevent the movable rod segment 42 from moving downward in the vertical direction, thereby ensuring that the bottom end of the movable rod segment 42 can be fixed at the mounting position corresponding to the first mounting hole 13.

[0052] During specific implementation, at least three identical marking reference points 40 should be selected for two adjacent three-dimensional scans; the marking reference points 40 should be selected at the junction of two adjacent three-dimensional scanning areas; each marking reference point 40 should avoid being on the same straight line; the distribution of multiple marking reference points 40 should try to avoid forming a regular dot matrix, and the distances between any two adjacent marking reference points 40 cannot be the same; each marking reference point 40 should have a different height.

[0053] In specific implementation, the method of using the marking point tooling for three-dimensional reconstruction of cable joints of the present invention is as follows: 1. Use the support vertical rod to adjust the support frame 20 to a preset height; 2. Place the axis to be scanned into the clamping frame 10; 3. Use the locking component to limit the axis to be scanned; 4. Turn on the handheld three-dimensional laser scanner and three-dimensional reconstruction software to perform three-dimensional scanning on the axis to be scanned; 5. After scanning, export the three-dimensional point cloud of the axis to be scanned and input it into the three-dimensional measurement software; 6. The operator selects the measurement task, and the measurement task is created according to the measurement requirements. The measurement software intelligently identifies and extracts the key part features according to the measurement task, and measures and gives the key size information. Then the reconstructed model, key size measurement results and process data are automatically saved.

[0054] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0055] The marking point tooling for the three-dimensional reconstruction of the cable joint can ensure the surface smoothness of the cable joint and prevent pollution or damage to the surface of the cable joint, while also taking into account the needs of three-dimensional point cloud collection; the marking point tooling for the three-dimensional reconstruction of the cable joint has a simple structure, is easy to use, and has good promotion and application value.

[0056] The marking point tooling for three-dimensional reconstruction of the cable joint of the present invention comprises a clamping frame 10 and a support frame 20, wherein the clamping frame 10 is arranged on the support frame 20, and the clamping frame 10 has a clamping space, wherein the clamping space is used to accommodate the axis to be scanned, and the axis to be scanned is clamped and fixed on the clamping frame 10, and a plurality of marking reference points 40 are arranged on the clamping frame 10, so that when the three-dimensional scanner scans the axis to be scanned, the marking reference point 40 can be used as a reference position, and it is no longer necessary to directly paste the marking point on the axis to be scanned, so that the three-dimensional scanner can completely scan the entire axis to be scanned, and at the same time, by adjusting the height of the support frame 20 in the vertical direction, the height of the axis to be scanned is adjusted, so that the height of the axis to be scanned is adapted to the scanning height of the three-dimensional scanner, thereby ensuring that the three-dimensional scanner can scan and obtain a complete digital model of the axis to be scanned, thereby solving the problem that the three-dimensional scanner in the prior art cannot completely scan the entire cable joint. For the convenience of description, spatial relative terms such as "above...", "above...", "on the upper surface...", "above", etc. can be used here to describe the spatial position relationship between a device or feature as shown in the figure and other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would then be positioned "below" or "below" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0057] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A marking point tool for three-dimensional reconstruction of cable joints, characterized in that: include: A clamping frame (10), the clamping frame (10) having a clamping space, the clamping space being used to accommodate the axis to be scanned, at least a portion of the clamping frame (10) being used to abut against the circumferential outer wall of the axis to be scanned, and a plurality of marking reference points (40) being arranged on the clamping frame (10) along the axial direction of the axis to be scanned; A support frame (20), the clamping frame (10) is arranged on the support frame (20), and the support frame (20) is arranged in a height-adjustable manner along the vertical direction.

2. The marking point tool for three-dimensional reconstruction of cable joints according to claim 1, characterized in that: The clamping frame (10) comprises two first support rods (4) and two V-shaped connecting frames which are connected to each other. The two first support rods (4) and the two V-shaped connecting frames together enclose the clamping space. The two ends of each first support rod (4) are respectively connected to the two V-shaped connecting frames. The distance between the two first support rods (4) along the vertical direction is a preset distance d, so that an opening is formed between the two first support rods (4) to allow the axis to be scanned to enter the clamping space.

3. The marking point tool for three-dimensional reconstruction of cable joints according to claim 2, characterized in that: Each of the V-shaped connecting frames comprises a second support rod (2) and a third support rod (3) connected to each other, the two ends of one of the first support rods (4) are respectively connected to the first ends of two of the second support rods (2), the two ends of another of the first support rods (4) are respectively connected to the first ends of two of the third support rods (3), and the second end of each of the second support rods (2) is connected to the second end of each of the corresponding third support rods (3).

4. The marking point tool for three-dimensional reconstruction of cable joints according to claim 3, characterized in that: Along the extension direction of the first support rod (4), a plurality of the marking reference points (40) are arranged at intervals on the first support rod (4); along the extension direction of the second support rod (2), a plurality of the marking reference points (40) are arranged at intervals on the second support rod (2); and along the extension direction of the third support rod (3), a plurality of the marking reference points (40) are arranged at intervals on the third support rod (3).

5. The marking point tool for three-dimensional reconstruction of cable joints according to claim 3, characterized in that: The extension direction of the second support rod (2) and the extension direction of the third support rod (3) of each V-shaped connecting frame are both arranged perpendicular to the axial direction of the axis to be scanned, the value range of the angle θ between the second support rod (2) and the third support rod (3) is 30°≤θ≤90°, the length of the second support rod (2) is L, and the preset distance d=L*sinθ.

6. The marking point tool for three-dimensional reconstruction of cable joints according to claim 3, characterized in that: The axis to be scanned comprises a first axis segment (31), a second axis segment (32) and a third axis segment (33); the axis of the first axis segment (31) and the axis of the second axis segment (32) are arranged to coincide with each other; the diameter of the first axis segment (31) is greater than the diameter of the second axis segment (32); the diameter of the second axis segment (32) and the diameter of the third axis segment (33) are the same; the second axis segment (32) and the third axis segment (33) are respectively arranged at two ends of the first axis segment (31); The second support rod (2) and the third support rod (3) of one V-shaped connecting frame are both in contact with an axial end face of the first shaft segment (31), and the second support rod (2) and the third support rod (3) of another V-shaped connecting frame are both in contact with the other axial end face of the first shaft segment (31) to axially limit the axis to be scanned; the second support rod (2) and the third support rod (3) of one V-shaped connecting frame are both in contact with the circumferential outer wall of the second shaft segment (32), and the second support rod (2) and the third support rod (3) of another V-shaped connecting frame are both in contact with the circumferential outer wall of the third shaft segment (33) to radially limit the axis to be scanned.

7. The marking point tool for three-dimensional reconstruction of cable joints according to claim 6, characterized in that: The marking point tooling for three-dimensional reconstruction of the cable connector also includes a locking component, which includes an arc-shaped limit frame (7) and a limit shaft (71), the two sides of the arc-shaped limit frame (7) are respectively connected to the two clamping frames (10), and the limit shaft (71) is movably arranged on the arc-shaped limit frame (7) along the radial direction of the axis to be scanned, so that the limit shaft (71) abuts against the circumferential outer wall of the second axis segment (32) or the circumferential outer wall of the third axis segment (33), so as to limit the axis to be scanned.

8. The marking point tool for three-dimensional reconstruction of cable joints according to claim 7, characterized in that: There are two locking components, and the two locking components and the two V-shaped connecting frames are arranged one by one. The two ends of each arc-shaped limiting frame (7) are respectively connected to the second support rod (2) and the third support rod (3) of the corresponding V-shaped connecting frame, and the two limiting shafts (71) are respectively in contact with the circumferential outer wall of the second shaft section (32) and the circumferential outer wall of the third shaft section (33); Each of the locking components further comprises a handle (9), wherein the handle (9) is connected to the corresponding limiting shaft (71), and the limiting shaft (71) is threadedly connected to the corresponding arc-shaped limiting frame (7), so that the handle (9) can be rotated around the axis of the limiting shaft (71) to move the limiting shaft (71) toward the direction approaching the axis to be scanned until it abuts against the circumferential outer wall of the axis to be scanned.

9. The marking point tool for three-dimensional reconstruction of cable joints according to claim 7, characterized in that: The marking point tooling for three-dimensional reconstruction of the cable joint also includes a supporting vertical rod, the supporting vertical rod including a fixed rod segment (41) and a movable rod segment (42), the fixed rod segment (41) and the movable rod segment (42) both extend along the vertical direction, and the movable rod segment (42) can be movably sleeved on the fixed rod segment (41); the fixed rod segment (41) is arranged on a mounting base, the top end of the movable rod segment (42) is connected to the support frame (20), and a plurality of mounting positions are arranged on the fixed rod segment (41) at intervals along the vertical direction, so that the height of the support frame (20) can be adjusted by fixing the bottom end of the movable rod segment (42) at any one of the plurality of mounting positions.

10. The marking point tool for three-dimensional reconstruction of cable joints according to claim 9, characterized in that: A plurality of first mounting holes (13) are arranged at intervals along the vertical direction on the fixed rod section (41), and a plurality of second mounting holes (131) are arranged at intervals along the vertical direction on the movable rod section (42). The plurality of first mounting holes (13) and the plurality of mounting positions are arranged in a one-to-one correspondence. The marking point tooling for three-dimensional reconstruction of the cable joint also includes an insert (11) and a U-shaped clamping member (12). The insert (11) is used to be inserted into the first mounting hole (13) and the second mounting hole (131). The U-shaped clamping member (12) is connected to the insert (11). The clamping axis of the U-shaped clamping member (12) is used to abut against the bottom end of the movable rod section (42) so that the bottom end of the movable rod section (42) is fixed at any one of the plurality of mounting positions.

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