Magnetic type three-dimensional laser scanning target

Abstract

The utility model belongs to the technical field of scanning targets, and particularly relates to a magnetic type three-dimensional laser scanning target which comprises a target plate, a U-shaped frame, a supporting rod and a base, four arc-shaped magnetic rods are arranged on the outer side of the base, four containing grooves and an inner circular groove are formed in the base, the inner wall of the inner circular groove is rotatably connected with a main bevel gear, and the inner wall of the main bevel gear is rotatably connected with an auxiliary bevel gear. The side wall of the main bevel gear is in engaged connection with four side bevel gears, one side of each of the four side bevel gears is fixedly connected with a distance adjusting screw rod, and the side wall of each of the four distance adjusting screw rods is in threaded connection with a sleeve; the four arc-shaped magnetic rods and the base are used for completing adsorption on wider and different areas together, external force can be dispersed to multiple points, the risks of falling off and shifting of the device are reduced, the overall stability of the device is improved, the continuity of scanning work of the device is facilitated, the situation of deviation of scanning data is reduced, and the scanning efficiency of the device is improved. The high-precision modeling requirement is met, and the later-stage work hindrance is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of scanning target technology, specifically relating to a magnetically aspirated three-dimensional laser scanning target. Background Technology

[0002] In today's digital age, 3D laser scanning technology is widely used in fields such as architectural surveying, industrial manufacturing, and cultural relic preservation. Magnetic 3D laser scanning targets are a key auxiliary tool in these applications. Traditional magnetic targets consist of a target body with a specific shape and high-contrast pattern, and a fixed-size magnetic base. The target helps the scanner accurately capture laser signals to calculate position and orientation, while the magnetic base allows the target to be easily attached using a magnetic field, simplifying the setup process and improving efficiency.

[0003] However, with the increasing expansion and deepening of applications of 3D laser scanning technology, existing magnetic 3D laser scanning targets have revealed their limitations. In actual operation, because the size of the magnetic plate base is fixed, relying solely on the limited area of ​​the magnetic plate for adsorption, the target is prone to slipping when subjected to slight vibrations, external impacts, or even its own gravity. This not only causes varying degrees of physical damage to the target itself but also directly interrupts the continuity of the scanning work, rendering the collected data unusable and requiring rescanning, resulting in a serious waste of manpower, material resources, and valuable time. Furthermore, in some scanning projects with extremely high stability requirements, even if the surface of the object being scanned is relatively flat, the limited distribution of the adsorption force of the fixed-size magnetic plate cannot provide comprehensive, high-strength stable support, making the target prone to displacement or detachment. This leads to deviations in the scanning data, failing to meet the requirements of high-precision modeling and greatly hindering subsequent work. Utility Model Content

[0004] This invention provides a magnetically attached three-dimensional laser scanning target, which improves the stability of the target during use.

[0005] This utility model provides the following technical solution: it includes a label plate, a U-shaped label frame, a support rod, and a base. Four arc-shaped magnetic rods are arranged on the outer side of the base, with the ends of two adjacent arc-shaped magnetic rods in contact. The base has four receiving grooves and an inner circular groove. A main bevel gear is rotatably connected to the inner wall of the inner circular groove. Four side bevel gears are meshed with the side wall of the main bevel gear. An adjusting screw is fixedly connected to one side of each of the four side bevel gears. A sleeve is threaded to the side wall of each of the four adjusting screws. The four sleeves are slidably connected to the inner wall of the corresponding receiving groove, and the four sleeves are respectively installed on one side of the corresponding arc-shaped magnetic rod.

[0006] The support rod is fixedly connected to both sides with L-shaped connecting rods, and both L-shaped connecting rods are installed on the top of the base.

[0007] Each of the four arc-shaped magnetic rods has an anti-slip plate fixedly connected to its outer side, with the ends of two adjacent anti-slip plates in contact. The four arc-shaped magnetic rods and the four anti-slip plates are arranged in a circumferential array.

[0008] The main bevel gear is fixedly connected to an adjusting rod at its top end, the adjusting rod is rotatably connected to the bottom end of the support rod, and an adjusting ring is installed on the side wall of the adjusting rod, the adjusting ring being located between the base and the support rod.

[0009] The four adjustable screws are provided with annular grooves on their sidewalls, and the base is provided with four limiting rings on its inner wall. The limiting rings are slidably connected to the inner wall of the corresponding annular groove.

[0010] Each of the four sleeves has a sliding groove at its top end, and each of the four receiving grooves has a limiting block fixedly connected to its inner wall. The limiting block is slidably connected to the inner wall of the corresponding sliding groove.

[0011] The beneficial effects of this invention are as follows: by using four arc-shaped magnetic rods together with the base to achieve adsorption over a wider and more diverse area, external forces can be distributed to multiple points. When subjected to lateral or torsional forces, multiple adsorption points work together to resist these forces, with each adsorption point bearing a relatively small share of the force, thereby reducing the risk of the device falling off or shifting. This method has relatively low requirements for the flatness of the metal surface, and multiple adsorption points can adaptively fit according to the actual conditions of the metal surface, improving the overall stability of the device, facilitating the continuity of the device's scanning work, reducing the occurrence of deviations in scanning data, meeting the requirements of high-precision modeling, and reducing obstacles in subsequent work.

[0012] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the present invention in its unfolded state;

[0015] Figure 3 for Figure 2 Enlarged diagram of section A in the middle;

[0016] Figure 4 This is a cross-sectional structural diagram of the base in this utility model;

[0017] Figure 5 for Figure 4 Enlarged schematic diagram of section B.

[0018] In the diagram: 1. Standard plate; 11. U-shaped standard frame; 12. Support rod; 13. L-shaped connecting rod; 2. Base; 21. Arc-shaped magnetic rod; 211. Anti-slip plate; 22. Receiving groove; 221. Limiting block; 23. Inner circular groove; 24. Limiting ring; 3. Main bevel gear; 31. Side bevel gear; 32. Adjusting screw; 321. Annular groove; 33. Sleeve; 331. Slide groove; 34. Adjusting rod; 35. Adjusting ring. Detailed Implementation

[0019] Please see Figures 1-5 The present invention provides the following technical solution: including a label plate 1, a U-shaped label frame 11, a support rod 12 and a base 2. Four arc-shaped magnetic rods 21 are provided on the outer side of the base 2, with the ends of two adjacent arc-shaped magnetic rods 21 in contact. Four receiving grooves 22 and an inner circular groove 23 are provided inside the base 2. A main bevel gear 3 is rotatably connected to the inner wall of the inner circular groove 23. Four side bevel gears 31 are meshed with the side wall of the main bevel gear 3. An adjusting screw 32 is fixedly connected to one side of each of the four side bevel gears 31. A sleeve 33 is threadedly connected to the side wall of each of the four adjusting screws 32. The four sleeves 33 are slidably connected to the inner wall of the corresponding receiving groove 22, and the four sleeves 33 are respectively installed on one side of the corresponding arc-shaped magnetic rod 21.

[0020] In this implementation scheme: the U-shaped frame 11 supports the target plate 1, and the target plate 1 can be angled within the U-shaped frame 11 to accommodate scanning at different angles. The base 2 supports the U-shaped frame 11 via a support rod 12. The base 2 has a fixed size design. Four arc-shaped magnetic rods 21 surround the outside of the base 2, and the spacing between the four arc-shaped magnetic rods 21 and the base 2 can be adjusted. The arc-shaped magnetic rods 21 can be used in conjunction with the base 2 or unfolded. The base 2 accommodates components such as the main bevel gear 3 through a receiving groove 22 and an inner circular groove 23. The main bevel gear 3 has a apex rotation design, and it drives the four side bevel gears 31 to rotate synchronously and in the same direction. The side bevel gears 31 drive the corresponding adjusting screws 32 to rotate, and the adjusting screws 32 adjust the telescopic position of the sleeves 33 in the receiving groove 22, thereby allowing the arc-shaped magnetic rods 21 and the base to... The spacing between the two bases is adjustable. The magnetic plate at the bottom of the base 2 and the arc-shaped magnetic rods 21 work together to achieve magnetic attraction. By rotating the main bevel gear 3, the four arc-shaped magnetic rods 21 can be expanded or contracted synchronously. When the four arc-shaped magnetic rods 21 are expanded, they can work together with the base 2 to attract a wider and more diverse area. External forces can be distributed to multiple points. When subjected to lateral or torsional forces, multiple attraction points work together to resist these forces. The force borne by each attraction point is relatively small, thereby reducing the risk of the device falling off or shifting. This method has relatively low requirements for the flatness of the metal surface. Multiple attraction points can adaptively fit according to the actual situation of the metal surface, improving the overall stability of the device, which is beneficial to the continuity of the device scanning work and reduces the occurrence of deviations in scanning data. This meets the requirements of high-precision modeling and reduces obstacles in later work.

[0021] Both sides of the support rod 12 are fixedly connected with L-shaped connecting rods 13, and both L-shaped connecting rods 13 are installed on the top of the base 2. The base 2 is connected to the support rod 12 through the two L-shaped connecting rods 13, so that a certain distance can be opened between the base 2 and the support rod 12. In addition, the two L-shaped connecting rods 13 make it easy to remove the device from the metal surface, and prevent personnel from directly holding the support rod 12 or the U-shaped sign frame 11, which would cause pulling and squeezing damage to the support rod 12 and the U-shaped sign frame 11.

[0022] Anti-slip plates 211 are fixedly connected to the outer sides of the four arc-shaped magnetic rods 21. The ends of two adjacent anti-slip plates 211 are in contact. The four arc-shaped magnetic rods 21 and the four anti-slip plates 211 are arranged in a circumferential array. The arc-shaped magnetic rods 21 support the anti-slip plates 211. When the arc-shaped magnetic rods 21 are attracted and fixed, the anti-slip plates 211 are located at the edge of the attraction area of ​​the arc-shaped magnetic rods 21. The anti-slip plates 211 are in contact with the metal surface, which increases the friction between the arc-shaped magnetic rods 21 and the metal surface, and further improves the stability.

[0023] An adjusting rod 34 is fixedly connected to the top of the main bevel gear 3. The adjusting rod 34 is rotatably connected to the bottom of the support rod 12. An adjusting ring 35 is installed on the side wall of the adjusting rod 34. The adjusting ring 35 is located between the base 2 and the support rod 12. The adjusting rod 34 drives the main bevel gear 3 and supports the adjusting ring 35. A part of the adjusting rod 34 and the adjusting ring 35 are located outside the base 2, which makes it convenient for the operator to rotate and adjust the adjusting ring 35 from the outside, thereby completing the unfolding adjustment of the four arc-shaped magnetic rods 21.

[0024] Each of the four adjusting screws 32 has an annular groove 321 on its side wall, and the base 2 has four limiting rings 24 on its inner wall. The limiting rings 24 are slidably connected to the inner wall of the corresponding annular groove 321. The base 2 is locked in the annular groove 321 by the limiting rings 24 to limit the adjusting screws 32, prevent the adjusting screws 32 from shifting, and ensure the stability of the connection between the side bevel gear 31 and the main bevel gear 3.

[0025] Each of the four sleeves 33 has a sliding groove 331 at its top end, and each of the four receiving grooves 22 has a limiting block 221 fixedly connected to its inner wall. The limiting block 221 is slidably connected to the inner wall of the corresponding sliding groove 331. The base 2 limits the angle of the sleeve 33 through the limiting block 221 and the sliding groove 331, so that the sleeve 33 can slide at a fixed angle. This prevents the sleeve 33 from rotating and affecting the transmission effect when the adjusting screw 32 is driven by the thread, and ensures the angular stability of the arc magnetic rod 21.

[0026] The working principle and usage process of this utility model are as follows: This device mainly consists of a standard plate 1, a U-shaped standard frame 11, a support rod 12, a base 2, and other components. The base 2 has internal structures such as a receiving groove 22 and an inner circular groove 23 to accommodate components such as the main bevel gear 3. The magnetic plate at the bottom of the base 2 and the arc-shaped magnetic rod 21 together achieve magnetic attraction. The anti-slip plates 211 on the outer side of the four arc-shaped magnetic rods 21 are arranged in a circumferential array. When the arc-shaped magnetic rods 21 are attracted and fixed, the anti-slip plates 211 are at the edge of the attraction area and in contact with the metal surface, which increases the friction between the arc-shaped magnetic rods 21 and the metal surface, further improving stability. The distance between the four arc-shaped magnetic rods 21 and the base 2 can be adjusted by controlling the rotation of the adjustment ring 35. When subjected to lateral or torsional forces, multiple attraction points work together to resist and disperse external forces, reducing the risk of device detachment and displacement. It also has relatively low requirements for the flatness of the metal surface, can adaptively fit, improve overall stability, facilitate the continuity of scanning work, reduce data deviation, meet the requirements of high-precision modeling, and reduce obstacles in subsequent work.

Claims

1. A magnetic three-dimensional laser scanning target, comprising a target plate (1), a U-shaped target frame (11), a supporting rod (12) and a base (2), characterized in that: Four arc-shaped magnetic rods (21) are provided on the outer side of the base (2). The ends of two adjacent arc-shaped magnetic rods (21) are in contact. Four receiving grooves (22) and an inner circular groove (23) are provided in the base (2). A main bevel gear (3) is rotatably connected to the inner wall of the inner circular groove (23). Four side bevel gears (31) are meshed with the side wall of the main bevel gear (3). An adjusting screw (32) is fixedly connected to one side of each of the four side bevel gears (31). A sleeve (33) is threadedly connected to the side wall of each of the four adjusting screws (32). The four sleeves (33) are slidably connected to the inner wall of the corresponding receiving groove (22), and the four sleeves (33) are respectively installed on one side of the corresponding arc-shaped magnetic rod (21).

2. The magnetically attached three-dimensional laser scanning target according to claim 1, characterized in that: Both sides of the support rod (12) are fixedly connected with L-shaped connecting rods (13), and both L-shaped connecting rods (13) are installed on the top of the base (2).

3. The magnetically attached three-dimensional laser scanning target according to claim 1, characterized in that: Anti-slip plates (211) are fixedly connected to the outer sides of the four arc-shaped magnetic rods (21), and the ends of two adjacent anti-slip plates (211) are in contact. The four arc-shaped magnetic rods (21) and the four anti-slip plates (211) are arranged in a circular array.

4. The magnetically attached three-dimensional laser scanning target according to claim 1, characterized in that: An adjusting rod (34) is fixedly connected to the top of the main bevel gear (3). The adjusting rod (34) is rotatably connected to the bottom of the support rod (12). An adjusting ring (35) is installed on the side wall of the adjusting rod (34). The adjusting ring (35) is located between the base (2) and the support rod (12).

5. A magnetically aspirated three-dimensional laser scanning target according to claim 1, characterized in that: The four adjustable screws (32) have annular grooves (321) on their side walls, and the base (2) has four limiting rings (24) on its inner wall. The limiting rings (24) are slidably connected to the inner wall of the corresponding annular grooves (321).

6. A magnetically aspirated three-dimensional laser scanning target according to claim 1, characterized in that: Each of the four sleeves (33) has a sliding groove (331) at its top end, and each of the four receiving grooves (22) has a limiting block (221) fixedly connected to its inner wall. The limiting block (221) is slidably connected to the inner wall of the corresponding sliding groove (331).

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