Three-dimensional scanning marker point magnetic force fast magic tape

Abstract

The utility model discloses a three -dimensional scanning mark point magnetic force fast magic paste relates to three -dimensional scanning equipment technical field, including the horizontal setting baseband body, the baseband body adopts three -layer stacking structure, the lower part of baseband body is silica gel antiskid pad, the middle part of baseband body is glass fiber fabric reinforcing pad, the upper part of baseband body is mounting pad, the silica gel antiskid pad, glass fiber fabric reinforcing pad and mounting pad length, width are consistent and through hot -pressing compound as an organic whole between three, the mounting pad top is corresponded with several target mark assemblies according to the distribution of scanning target point and installs, the utility model discloses can on the basis of guaranteeing device light thin flexible, reusable, effectively release bending stress, prevent target mark degumming and the problem of adhesive overflow, stabilize target point identification accuracy, eliminate scanning blind area, improve the stability, accuracy and service life of industrial pipe fitting curved surface three -dimensional scanning operation.

Description

Technical Field

[0001] This utility model relates to the field of three-dimensional scanning equipment technology, specifically a magnetic quick-release Velcro for three-dimensional scanning marker points. Background Technology

[0002] 3D laser scanning and photogrammetry technologies are widely used in deformation detection, dimensional verification, and reverse modeling of large cylindrical tubular components. Magnetic scanning marker hooks and loops, due to their glue-free bonding, reusability, and excellent surface adaptability, have become a common tooling for setting up optical targets in industrial curved surface scanning. Currently, most mainstream scanning marker hooks and loops on the market use a structure where the magnetic target is directly glued to the surface of the hook and loop base. While the assembly process is simple and convenient, it suffers from the following problems: In existing technologies, the hook and loop base is mostly a single-layer, integrated structure with uniform overall bending stiffness. When the base is bent against the curved inner wall of the cylinder, the overall bending stress is evenly transmitted to all parts of the base and continuously concentrated at the bonding interface between the magnetic target and the hook and loop. This causes the target adhesive layer to be subjected to peeling stress for a long time. After prolonged use, the adhesive layer is prone to fatigue cracking and delamination failure, leading to magnetic target slippage, detachment, and displacement, resulting in failure of 3D scanning target point recognition and seriously affecting scanning accuracy and work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a magnetic quick-release Velcro for three-dimensional scanning markers, which can effectively release bending stress, eliminate target delamination and adhesive overflow problems, stabilize target recognition accuracy, eliminate scanning blind spots, and improve the stability, accuracy and service life of three-dimensional scanning of curved surfaces of industrial pipe fittings, while ensuring that the device is thin, flexible and reusable.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides a three-dimensional scanning marker magnetic quick-release Velcro, comprising a horizontally arranged baseband body with a three-layer stacked structure. The lower part of the baseband body is a silicone anti-slip pad, the middle part is a fiberglass fabric reinforcing pad, and the upper part is a mounting pad. The silicone anti-slip pad, the fiberglass fabric reinforcing pad, and the mounting pad have the same length and width and are integrally bonded together by heat pressing. Several target components are installed on the top of the mounting pad according to the distribution of scanning target points. The target components can magnetically fix the baseband body to the inner wall of a metal tube and arrange optical marker target points on the inner wall of the metal tube. The target assembly includes a circular adhesive base plate made of modified acrylic material. The bottom of the adhesive base plate is bonded to the top of the mounting pad with double-sided adhesive. The top of the adhesive base plate is provided with a support base with the same diameter as the base plate. The top of the support base is provided with mounting holes and the support base is made of rigid PET material. The inner side wall of the support base is provided with a ring of overflow adhesive receiving groove, and the overflow adhesive receiving groove is located outside the mounting hole.

[0005] Preferably, one end of the top of the mounting pad is provided with a short-pile hook and loop fastener, and the middle of the short-pile hook and loop fastener is recessed downwards. The end of the mounting pad away from the short-pile hook and loop fastener is provided with an extension end, and the bottom of the extension end is provided with a female short-pile hook and loop fastener, and the middle of the female short-pile hook and loop fastener is protruding downwards. When the mounting pad is in a ring-shaped butt joint, the short-pile hook and loop fasteners and the female short-pile hook and loop fasteners at both ends of the mounting pad are bonded to each other, and the recessed areas and the protruding areas of the two are interlocked.

[0006] Preferably, the top of the fiberglass fabric reinforcing pad has several horizontally arranged bending buffer grooves at equal intervals.

[0007] Preferably, the target assembly further includes a neodymium iron boron permanent magnet sheet bonded to the inside of the mounting hole at the top of the support base. The diameter of the neodymium iron boron permanent magnet sheet matches the diameter of the mounting hole, and a highly reflective PC circular target sheet with the same diameter is provided on the top of the neodymium iron boron permanent magnet sheet.

[0008] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: This device effectively solves the core problems of traditional magnetic scanning Velcro, such as easy delamination, poor adhesion on curved surfaces, and unstable scanning accuracy, through the synergistic cooperation of a three-layer hot-pressed composite baseband, an embedded stress buffer structure, and an optimized layered target assembly. The embedded bending buffer groove releases stress without damaging the integrity of the surface substrate, avoiding defects such as substrate tearing, oil seepage, and target wear caused by grooving the baseband surface, thus extending the device's lifespan. The three-layer baseband structure has a clear division of labor, balancing flexible adhesion performance with overall structural strength. Silicone anti-slip pads combined with the magnetic design provide dual-limiting protection for the stability of the baseband's adhesion. The target assembly uses an adhesive overflow receiving groove to solve the problems of adhesive overflow accumulation and target tilting / protrusion, ensuring uniform target posture and stable recognition, significantly improving 3D scanning accuracy. Attached Figure Description

[0009] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0010] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the unfolded structure of the baseband body in this utility model; Figure 3 This is a first-view structural diagram of the mounting pad in this utility model; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a second-view structural diagram of the mounting pad in this utility model; Figure 6 yes Figure 5 Enlarged view of point B in the middle; Figure 7 This is a three-dimensional structural diagram of the target component in this utility model; Figure 8 This is a schematic diagram of the unfolded structure of the target component in this utility model; Figure 9 This is a three-dimensional structural diagram of the device when it is assembled on the inner wall of a metal pipe.

[0011] In the picture: 1. Baseband body; 11. Silicone anti-slip pad; 12. Fiberglass fabric reinforcing pad; 13. Mounting pad; 2. Female short-hair hook and loop fastener; 3. Female short-hair hook and loop fastener; 4. Bending buffer groove; 5. Target assembly; 51. Adhesive base plate; 52. Bearing base; 53. Mounting hole; 54. Neodymium iron boron permanent magnet sheet; 55. High-reflective PC circular target sheet; 56. Glue overflow receiving groove. Detailed Implementation

[0012] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0013] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0014] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0015] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0016] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0017] like Figures 1 to 9 As shown, a three-dimensional scanning marker magnetic quick-release Velcro includes a horizontally arranged baseband body 1. The baseband body 1 adopts a three-layer stacked structure. The lower part of the baseband body 1 is a silicone anti-slip pad 11, the middle part of the baseband body 1 is a fiberglass fabric reinforcing pad 12, and the upper part of the baseband body 1 is a mounting pad 13. The silicone anti-slip pad 11, the fiberglass fabric reinforcing pad 12, and the mounting pad 13 have the same length and width and are integrally bonded together by hot pressing. Several target components 5 are installed on the top of the mounting pad 13 according to the distribution of scanning target points. The target components 5 can magnetically fix the baseband body 1 to the inner wall of the metal tube and arrange optical marker target points on the inner wall of the metal tube.

[0018] Furthermore, one end of the top of the mounting pad 13 is provided with a short-hair hook and loop fastener 2, and the middle part of the short-hair hook and loop fastener 2 is recessed downwards. The end of the mounting pad 13 away from the short-hair hook and loop fastener 2 is provided with an extension end, and the bottom of the extension end is provided with a female short-hair hook and loop fastener 3, and the middle part of the female short-hair hook and loop fastener 3 is protruding downwards. When the mounting pad 13 is in a ring-shaped butt joint, the short-hair hook and loop fastener 2 and the female short-hair hook and loop fastener 3 at both ends of the mounting pad 13 are bonded to each other, and the recessed area and the protruding area of ​​the two interlock with each other. Furthermore, the top of the fiberglass fabric reinforcing pad 12 is provided with several horizontally arranged bending buffer grooves 4 at equal intervals; Furthermore, the target assembly 5 includes a circular adhesive base plate 51, which is made of modified acrylic material. The bottom of the adhesive base plate 51 is bonded to the top of the mounting pad 13 with double-sided adhesive. The top of the adhesive base plate 51 is provided with a support base 52 with the same diameter as the base plate 51. The top of the support base 52 is provided with a mounting hole 53, and the support base 52 is made of rigid PET material. Furthermore, the target assembly 5 also includes a neodymium iron boron permanent magnet sheet 54 bonded inside the mounting hole 53 on the top of the support base 52. The diameter of the neodymium iron boron permanent magnet sheet 54 matches the diameter of the mounting hole 53, and a highly reflective PC circular target sheet 55 with the same diameter is provided on the top of the neodymium iron boron permanent magnet sheet 54. Furthermore, the inner sidewall of the support base 52 is provided with an overflow adhesive receiving groove 56, and the overflow adhesive receiving groove 56 is located outside the mounting hole 53.

[0019] like Figures 1 to 9 As shown, in this embodiment, the bottom layer of the baseband body 1 is a silicone anti-slip pad 11 with a thickness of 0.2mm, which can closely fit the curved surface of the inner wall of the metal pipe, increase the frictional resistance of the contact surface, and effectively suppress the overall slippage of the baseband. The middle layer is a glass fiber fabric reinforcing pad 12 with a thickness of 0.4mm, which serves as the core load-bearing layer. While retaining the flexibility of the substrate, it significantly improves the overall tensile and deformation resistance of the baseband. The top layer is an installation pad 13 with a thickness of 0.3mm, which serves as the load-bearing installation base for the target component 5. The surface is flat and complete, providing a stable assembly base for the target to be pasted and fixed. It is integrated into a single structure through high-temperature hot pressing. The overall structure is thin, regular, and has strong structural stability. It can be freely and flexibly fitted with different curvatures of the pipe without rigid support or local suspension. It is suitable for three-dimensional scanning conditions of curved inner walls with various curvatures. In actual deployment, the target assembly 5, fixed to the surface of the mounting pad 13, achieves both magnetic fixation and optical marking functions. The target assembly 5 adopts a layered, thin, integrated structure, assembled and fixed sequentially from bottom to top. The structure is compact, with uniform thickness and no protrusions. A 0.2mm thick modified acrylic adhesive base plate 51 serves as the adhesive substrate, exhibiting strong bonding stability, bending resistance, and resistance to delamination, firmly adhering to the surface of the mounting pad 13. Above the adhesive base plate 51, a 0.6mm thick rigid PET support base 52 is mounted, providing flat support for the upper structure based on the properties of the rigid substrate, preventing deformation of the magnetic components under pressure. The support base 52 contains a 0.3mm thick neodymium iron boron permanent magnet sheet 54, utilizing its strong magnetic attraction... The features allow the entire baseband body 1 to be firmly adsorbed onto the inner wall of the metal pipe without the need for auxiliary adhesive. Combined with the bottom silicone anti-slip pad 11, it forms a dual limiting structure of magnetic attraction and friction, avoiding baseband displacement and detachment caused by dragging during operation and equipment vibration. The top of the neodymium iron boron permanent magnet sheet 54 is attached to a 0.15mm thick high-reflectivity PC circular target sheet 55. The target surface is flat and uniform with stable reflectivity, which can provide standard and clear optical reference target points for 3D laser scanning and photogrammetry equipment, and stably complete the point cloud data acquisition work required for pipe inner wall dimension verification, deformation detection and reverse modeling. Unlike traditional single-layer Velcro, which suffers from stress concentration at the target bonding point due to stress transmission across the entire surface during curved bonding, bending, on-site operation, and storage curling, this device utilizes a bending buffer groove 4 with a middle layer of fiberglass structure to concentrate and release bending deformation stress at the groove location. This effectively blocks the transmission of alternating stress to the bonding interface between the two targets, preventing the bonding base plate 51 from bearing shear and peel loads for extended periods, thus eliminating fatigue cracking and delamination issues at the source. Simultaneously, the overflow adhesive receiving groove 56 surrounding the inner side of the support base 52 can promptly collect and guide excess adhesive that overflows during the bonding and assembly of the NdFeB permanent magnet sheet 54, preventing adhesive accumulation and clumping. This ensures the target assembly 5 is bonded flat and centered, effectively avoiding target tilting, protrusion, and contamination, and stably guaranteeing the flatness of the optical target and the scanning recognition accuracy.

[0020] For complete scanning of large-diameter pipe fittings, this device features a convex-concave interlocking male-female short-hair hook and loop fastener 3 connection structure at both ends of the mounting pad 13. One end has a male short-hair hook and loop fastener 2 with a concave center, and the other end has a female short-hair hook and loop fastener 3 with a convex center. When the baseband body 1 is arranged in a ring, the convex-concave structure precisely interlocks and limits the position, effectively preventing lateral misalignment and ensuring the continuity and integrity of the overall scanning data of the pipe fitting.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A three-dimensional scanning marker magnetic quick-release Velcro, characterized in that, The system includes a horizontally arranged baseband body (1), which adopts a three-layer stacked structure. The lower part of the baseband body (1) is a silicone anti-slip pad (11), the middle part of the baseband body (1) is a fiberglass fabric reinforcing pad (12), and the upper part of the baseband body (1) is a mounting pad (13). The silicone anti-slip pad (11), the fiberglass fabric reinforcing pad (12), and the mounting pad (13) have the same length and width and are integrated by hot pressing. The top of the mounting pad (13) is equipped with several target components (5) according to the distribution of scanning target points. The target components (5) can magnetically fix the baseband body (1) to the inner wall of the metal tube and lay optical marking target points on the inner wall of the metal tube. The target assembly (5) includes a circular adhesive base plate (51) made of modified acrylic material. The bottom of the adhesive base plate (51) is bonded to the top of the mounting pad (13) with double-sided adhesive. The top of the adhesive base plate (51) is provided with a support base (52) with the same diameter as the base plate. The top of the support base (52) is provided with a mounting hole (53). The support base (52) is made of rigid PET material. The inner side wall of the bearing base (52) is provided with an overflow adhesive receiving groove (56), and the overflow adhesive receiving groove (56) is located outside the mounting hole (53).

2. The three-dimensional scanning marker magnetic quick-release Velcro according to claim 1, characterized in that, The mounting pad (13) has a short-hair hook and loop fastener (2) at one end of its top, and the middle part of the short-hair hook and loop fastener (2) is recessed downwards. The mounting pad (13) has an extension end at the end away from the short-hair hook and loop fastener (2), and a female short-hair hook and loop fastener (3) is provided at the bottom of the extension end. The middle part of the female short-hair hook and loop fastener (3) is protruding downwards. When the mounting pad (13) is in a ring-shaped connection, the short-hair hook and loop fastener (2) and the female short-hair hook and loop fastener (3) at both ends of the mounting pad (13) are bonded to each other and their recessed and protruding areas interlock with each other.

3. The three-dimensional scanning marker magnetic quick-release Velcro according to claim 2, characterized in that, The top of the fiberglass fabric reinforcing pad (12) has several horizontally arranged bending buffer grooves (4) at equal intervals.

4. The three-dimensional scanning marker magnetic quick-release Velcro according to claim 3, characterized in that, The target assembly (5) also includes a neodymium iron boron permanent magnet sheet (54) bonded inside the mounting hole (53) on the top of the support base (52). The diameter of the neodymium iron boron permanent magnet sheet (54) matches the diameter of the mounting hole (53), and a highly reflective PC circular target sheet (55) with the same diameter is provided on the top of the neodymium iron boron permanent magnet sheet (54).

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