Laser range finder calibration platform capable of quickly positioning

Abstract

The utility model discloses a laser range finder calibration platform capable of rapidly positioning, which comprises a platform body provided with two guide rails distributed in parallel; the base plate is arranged on the guide rail in a sliding manner, and a connecting column is fixed on the base plate; the rotating mechanism comprises a rotary table fixed to the upper end of the connecting column and a mounting plate hinged to the rotary table; the angle adjusting mechanism is arranged between the mounting plate and the rotary table and used for adjusting the pitching angle of the mounting plate relative to the rotary table; the reflecting plate is mounted on the mounting plate; the multiple positioning blocks are distributed on the platform body at equal intervals; the positioning assembly is arranged on one side of the base plate and can be connected with the positioning block in a matched mode so that the base plate can be positioned at preset different distance positions; the method has the advantages that multi-position accurate and quick calibration can be realized, and the efficiency and the accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the field of laser rangefinder calibration technology, and in particular to a laser rangefinder calibration platform that can quickly locate the target. Background Technology

[0002] Laser rangefinders, as high-precision measuring tools, are widely used in fields such as construction, industrial inspection, and geological exploration. To ensure their accuracy and reliability under different environments and conditions, regular calibration is essential. Traditional calibration methods typically rely on the use of a fixed reflector and the rangefinder, manually adjusting the distance and angle between them to simulate different measurement scenarios and verify the rangefinder's performance.

[0003] However, in practical applications, traditional calibration platforms have many shortcomings:

[0004] Inefficient distance adjustment: Traditional calibration methods require operators to manually move the reflector or rangefinder to a designated position and lock it in place using screws or other fixing devices. Each adjustment involves disassembly, repositioning, and tightening, which is time-consuming and cumbersome. Especially when multiple calibration points need to be frequently switched (such as 5m, 2m, 10m, etc.), this inefficient distance adjustment method greatly limits the calibration speed and makes it difficult to meet the needs of rapid calibration.

[0005] Positioning accuracy is limited by manual operation: During the calibration process, the position of the reflector is usually determined by a ruler or laser positioning assistance. However, this method is highly dependent on the operator's visual alignment ability and is prone to introducing errors, especially when calibrating over long distances (such as more than 50 meters). Even a small deviation may lead to inaccurate calibration results and affect the accuracy of the final data.

[0006] Lack of flexibility in angle adjustment: In certain application scenarios, such as testing tilt measurement compensation functions, it is necessary to evaluate the performance of the rangefinder at different pitch angles. However, existing calibration platforms mostly use fixed reflector structures or simple hinge designs, which cannot achieve precise angle adjustment and stable locking, thus limiting the ability to perform multi-dimensional calibration.

[0007] Poor repeatability: Due to the lack of a standardized positioning mechanism, the same calibration point may deviate in position during different operations. This not only affects the repeatability of calibration results, but also increases the difficulty of subsequent data analysis and comparison.

[0008] Therefore, there is an urgent need to design a laser rangefinder calibration platform that is easy to operate, has accurate positioning, and supports rapid switching of multiple distance-angle combinations to improve calibration efficiency and reliability and meet the high-frequency, multi-parameter calibration requirements in calibration scenarios. Summary of the Invention

[0009] The purpose of this invention is to provide a laser rangefinder calibration platform that can quickly locate objects, enabling precise and rapid calibration at multiple positions, thereby improving efficiency and accuracy.

[0010] To achieve the above objectives, this utility model provides the following technical solution: a laser rangefinder calibration platform capable of rapid positioning, comprising,

[0011] The platform body has two parallel guide rails.

[0012] A base plate that can be slidably disposed on the guide rail, and a connecting post is fixed on the base plate;

[0013] A rotating mechanism, comprising a turntable fixed to the upper end of the connecting column, and a mounting plate hinged to the turntable;

[0014] An angle adjustment mechanism is provided between the mounting plate and the turntable, and is used to adjust the pitch angle of the mounting plate relative to the turntable;

[0015] A reflector, the reflector being mounted on the mounting plate;

[0016] Multiple positioning blocks are provided and are equidistantly distributed on the platform body;

[0017] A positioning component is disposed on one side of the substrate and can be connected with the positioning block to position the substrate at different preset distances.

[0018] Preferably, four sliding components are disposed below the substrate, with each pair of sliding components disposed on a corresponding guide rail. Each sliding component includes a sliding block and two bearings disposed on the sliding block, with the outer ring of the bearings in contact with the corresponding guide rail.

[0019] Preferably, the angle adjustment mechanism includes an adjustment bolt and a torsion spring. The two ends of the torsion spring are respectively connected to the back of the mounting plate and the turntable. The adjustment bolt is screwed onto the turntable, and the end of the adjustment bolt extends out of the turntable and abuts against the mounting plate.

[0020] Preferably, the positioning assembly includes a quick clamp and a limiting rod. The quick clamp is fixed to one side of the base plate via a side plate. One end of the limiting rod is connected to the clamp of the quick clamp, and the other end can cooperate with the positioning block.

[0021] Preferably, a slide rail is vertically fixed on the side plate, and the limiting rod slides in cooperation with the slide rail.

[0022] Preferably, the upper and lower ends of the front side of the mounting plate are provided with forward-extending extension plates, and each extension plate is provided with a through groove extending in the horizontal direction. The upper and lower ends of the reflector are respectively provided with insertion parts that cooperate with the through grooves, and the insertion parts can be inserted into the through grooves from the side of the extension plate.

[0023] Preferably, the connecting column includes a fixed column and a telescopic column. The lower end of the fixed column is fixedly connected to the base plate. The telescopic column is sleeved on the outside of the fixed column and can slide up and down relative to the fixed column. The outer peripheral wall of the fixed column is provided with a plurality of positioning holes evenly distributed along its axial direction. The telescopic column is provided with positioning pins that cooperate with the positioning holes. The telescopic column is also provided with fastening bolts for fixing the positioning pins. The turntable is fixed to the upper end of the telescopic column.

[0024] Compared with existing technologies, the advantages of this utility model are as follows: The platform adopts a double-rail sliding structure, allowing the base plate to slide smoothly on two parallel rails, ensuring the stability and accuracy of the movement; the combination of the connecting column and the turntable on the base plate provides height support, while the hinge structure between the turntable and the mounting plate provides the basis for angle adjustment. Through the angle adjustment mechanism, the operator can precisely adjust the pitch angle of the mounting plate, thereby ensuring that the reflector is always in the optimal reflection position; multiple positioning blocks evenly distributed on the platform body and the positioning components on the side of the base plate form a simple and efficient positioning system. The operator only needs to move the base plate to the corresponding positioning block position, and the positioning components and positioning blocks can cooperate to achieve quick and accurate positioning, eliminating the tedious steps of repeated measurement and adjustment. This modular design not only greatly improves calibration efficiency but also ensures the repeatability and accuracy of each positioning, making the entire structure simple, reliable, and easy to operate, significantly reducing the difficulty of the operator's work, while improving the accuracy and efficiency of calibration work. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0028] Figure 3This is a three-dimensional structural diagram of the sliding component in this utility model;

[0029] Figure 4 This is a three-dimensional structural diagram of the positioning component and the substrate in this utility model.

[0030] Figure 5 This is a three-dimensional structural diagram of the mounting plate in this utility model;

[0031] In the diagram, 1. Platform body; 2. Guide rail; 3. Base plate; 4. Connecting column; 5. Rotating mechanism; 6. Turntable; 7. Mounting plate; 8. Angle adjustment mechanism; 9. Reflector; 10. Positioning block; 11. Positioning assembly; 12. Sliding assembly; 13. Sliding block; 14. Bearing; 15. Adjusting bolt; 16. Torsion spring; 17. Quick clamp; 18. Limiting rod; 19. Side plate; 20. Clamp; 21. Extension plate; 22. Through slot; 23. Insertion part; 24. Fixed column; 25. Telescopic column; 26. Positioning hole; 27. Positioning pin; 28. Fastening bolt; 29. ​​Slide rail. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Example 1: As Figures 1-5 As shown, a laser rangefinder calibration platform capable of rapid positioning includes,

[0034] Platform body 1, with two parallel guide rails 2 installed on the platform body 1;

[0035] A base plate 3 is slidably mounted on a guide rail 2, and a connecting post 4 is fixed on the base plate 3;

[0036] Rotating mechanism 5, which includes a turntable 6 fixed to the upper end of the connecting column 4, and a mounting plate 7 hinged to the turntable 6;

[0037] Angle adjustment mechanism 8 is disposed between the mounting plate 7 and the turntable 6 and is used to adjust the pitch angle of the mounting plate 7 relative to the turntable 6.

[0038] Reflector 9 is mounted on mounting plate 7;

[0039] Positioning blocks 10 are provided in multiples and are equidistantly distributed on the platform body 1;

[0040] The positioning component 11 is disposed on one side of the substrate 3 and can be connected with the positioning block 10 to position the substrate 3 at different preset distance positions.

[0041] Example 2: Figures 1-5 As shown, unlike Embodiment 1, four sliding components 12 are provided below the substrate 3. Every two sliding components 12 are disposed on the corresponding guide rail 2. Each sliding component 12 includes a sliding block 13 and two bearings 14 disposed on the sliding block 13. The outer ring of the bearing 14 is in contact with the corresponding guide rail 2.

[0042] Four sliding components 12 are evenly distributed below the substrate 3, with two sliding components 12 corresponding to each guide rail 2. This symmetrical layout ensures that the substrate 3 is subjected to uniform force, effectively preventing tilting and shaking during movement. Each sliding component 12 includes a sliding block 13 and two precision bearings 14. The outer ring of the bearing 14 is in direct contact with the guide rail 2. This design transforms sliding friction into rolling friction, significantly reducing movement resistance and making the substrate 3 move more smoothly. In particular, the design of each sliding component 12 equipped with two bearings 14 not only provides more stable support but also effectively distributes the load and extends the service life of the bearings 14. At the same time, the point contact between the bearings 14 and the guide rail 2 reduces the contact area, reduces the possibility of dust accumulation, improves movement accuracy, and enables the substrate 3 to maintain stable and reliable sliding performance during long-term use.

[0043] In this embodiment, the angle adjustment mechanism 8 includes an adjustment bolt 15 and a torsion spring 16. The two ends of the torsion spring 16 are respectively connected to the back of the mounting plate 7 and the turntable 6. The adjustment bolt 15 is screwed onto the turntable 6, and the end of the adjustment bolt 15 extends out of the turntable 6 and abuts against the mounting plate 7.

[0044] In the above structure, the torsion spring 16 is connected between the back of the mounting plate 7 and the turntable 6, which not only provides stable support but also generates a continuous return torque to ensure that the mounting plate 7 always stays in the set position and effectively prevents angular displacement caused by vibration or external force.

[0045] The adjusting bolt 15, through its threaded engagement with the turntable 6, enables precise feed adjustment. Its end abuts against the mounting plate 7, allowing for precise control of the mounting plate 7's pitch angle simply by rotating the bolt. This dual-mechanism design of elastic support and rigid adjustment not only ensures the accuracy and stability of the adjustment but also features simple operation and convenient adjustment. Especially when minute angle adjustments are required, the operator can achieve precise angle control with a gentle turn of the adjusting bolt 15. The presence of the torsion spring 16 ensures the smoothness of the entire adjustment process, preventing sudden changes or wobbling during adjustment, greatly improving the efficiency and accuracy of calibration work.

[0046] Example 3: Figures 1-5 As shown, unlike Embodiment 2, the positioning component 11 includes a quick clamp 17 and a limiting rod 18. The quick clamp 17 is fixed to one side of the base plate 3 via a side plate 19. One end of the limiting rod 18 is connected to the clamp 20 of the quick clamp 17, and the other end can cooperate with the positioning block 10.

[0047] The positioning component 11 employs a design combining a quick clamp 17 and a limiting rod 18, achieving rapid and accurate position positioning. Specifically, the quick clamp 17 is securely mounted on the side of the base plate 3 via a side plate 19, and the quick clamp 17 is vertically arranged. This mounting method not only ensures the stability of the clamp but also facilitates clamping operations for the operator. The two ends of the limiting rod 18 respectively cooperate with the chuck 20 of the quick clamp 17 and the positioning block 10, forming a complete positioning link. The connection at the chuck 20 end allows the limiting rod 18 to be quickly replaced or adjusted, while the end cooperating with the positioning block 10 ensures positioning accuracy. The unique advantage of this design is that the operator can easily release or clamp the limiting rod 18 by using the handle of the quick clamp 17, causing the limiting rod 18 to rise or fall, thus conveniently completing position switching and locking without complex tools or cumbersome operating procedures. Furthermore, since the position of the positioning block 10 on the platform is preset, combined with the cooperation of the limiting rod 18, a high degree of repeatability is guaranteed for each positioning operation. This fast, simple, and reliable positioning method greatly improves the efficiency of calibration work, reduces the labor intensity of operators, and ensures the accuracy and stability of positioning.

[0048] In this embodiment, a slide rail 29 is vertically fixed on the side plate 19, and the limiting rod 18 slides in conjunction with the slide rail 29.

[0049] The above structural design ensures that the limiting rod 18 always stays on the predetermined movement trajectory during positioning operations, effectively preventing the limiting rod 18 from deviating and shaking during use. Through the guiding effect of the slide rail, the limiting rod 18 can move smoothly and steadily in a straight line, which not only improves the positioning accuracy but also extends the service life of the component.

[0050] In this embodiment, the upper and lower ends of the front side of the mounting plate 7 are provided with forward-extending extension plates 21. Each extension plate 21 is provided with a through groove 22 extending in the horizontal direction. The upper and lower ends of the reflector plate 9 are respectively provided with insertion parts 23 that cooperate with the through groove 22. The insertion parts 23 can be inserted into the through groove 22 from the side of the extension plate 21.

[0051] In the above structure, the reflector 9 is installed using a plug-in design. An extension plate 21 with through slots 22 is provided at both the upper and lower ends of the front side of the mounting plate 7, forming a simple and reliable installation mechanism. The horizontal through slots 22 on the extension plate 21 precisely engage with the plug-in portions 23 at both ends of the reflector 9, allowing the reflector 9 to be easily inserted and fixed from the side. This design not only facilitates the installation and removal of the reflector 9 but also ensures its stability during use. Furthermore, this detachable structure facilitates the maintenance, replacement, and cleaning of the reflector 9, greatly improving the practicality and maintainability of the equipment.

[0052] Example 4: Figures 1-5 As shown, unlike Embodiment 3, the connecting column 4 includes a fixed column 24 and a telescopic column 25. The lower end of the fixed column 24 is fixedly connected to the base plate 3. The telescopic column 25 is sleeved on the outside of the fixed column 24 and can slide up and down relative to the fixed column 24. The outer peripheral wall of the fixed column 24 is provided with a plurality of positioning holes 26 evenly distributed along its axial direction. The telescopic column 25 is provided with positioning pins 27 that cooperate with the positioning holes 26. The telescopic column 25 is also provided with fastening bolts 28 for fixing the positioning pins 27. The turntable 6 is fixed to the upper end of the telescopic column 25.

[0053] In the above structure, the connecting column 4 adopts a sleeve design of fixed column 24 and telescopic column 25, realizing height adjustability and stability. The fixed column 24 is firmly connected to the base plate 3, while the telescopic column 25 can slide up and down outside the fixed column 24. The height position can be precisely controlled by the cooperation between the positioning holes 26 evenly distributed on the outer peripheral wall of the fixed column 24 and the positioning pins 27 on the telescopic column 25. The fastening bolts 28 can firmly lock the positioning pins 27, ensuring that the adjusted position is stable and reliable.

[0054] This modular height adjustment mechanism is not only easy to operate but also precise, meeting the height requirements of different usage scenarios. The equidistantly distributed positioning holes 26 also ensure the accuracy and repeatability of each adjustment, providing reliable support for calibration work.

[0055] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A fast positionable laser range finder calibration platform, characterized in that: The utility model relates to a platform body, two parallel distribution guide rails are arranged on the platform body, A base plate is slidably arranged on the guide rails, and a connecting column is fixed on the base plate, A rotating mechanism is arranged on the upper end of the connecting column, and the rotating mechanism comprises a rotating table and a mounting plate hinged to the rotating table, An angle adjusting mechanism is arranged between the mounting plate and the rotating table, and the angle adjusting mechanism is used for adjusting the pitch angle of the mounting plate relative to the rotating table, A reflecting plate is arranged on the mounting plate, A plurality of positioning blocks are arranged on the platform body at equal intervals, A positioning assembly is arranged on one side of the base plate, and the positioning assembly can be connected with the positioning blocks to position the base plate at different positions at different distances. Four sliding assemblies are arranged below the base plate, and each two sliding assemblies are arranged on corresponding guide rails, 2. The laser range finder calibration platform of claim 1, wherein: The angle adjusting mechanism comprises an adjusting bolt and a torsional spring, the two ends of the torsional spring are connected to the back of the mounting plate and the rotating table respectively, the adjusting bolt is screwed on the rotating table, and the end of the adjusting bolt protrudes from the rotating table and abuts against the mounting plate.

3. The laser range finder calibration platform of claim 1, wherein: The positioning assembly comprises a quick clamp and a limiting rod, the quick clamp is fixed on one side of the base plate through a side plate, one end of the limiting rod is connected to the chuck of the quick clamp, and the other end can be connected with the positioning blocks.

4. The quick positioning laser range finder calibration platform of claim 1, wherein: A slide rail is vertically fixed on the side plate, and the limiting rod is in sliding connection with the slide rail.

5. The quick positioning laser range finder calibration platform of claim 4, wherein: The upper end and the lower end of the front side of the mounting plate are provided with extension plates extending forward, a through slot extending in the horizontal direction is formed in each extension plate, the upper end and the lower end of the reflecting plate are respectively provided with plug-in parts matched with the through slots, and the plug-in parts can be inserted into the through slots from the side edges of the extension plates.

6. The quick positioning laser range finder calibration platform of claim 1, wherein: The connecting column comprises a fixed column and a telescopic column, the lower end of the fixed column is fixedly connected with the base plate, the telescopic column is sleeved outside the fixed column and can slide up and down relative to the fixed column, a plurality of positioning holes are arranged on the outer peripheral wall of the fixed column at equal intervals along the axial direction of the fixed column, a positioning pin matched with the positioning holes is arranged on the telescopic column, a fastening bolt for fixing the positioning pin is further arranged on the telescopic column, and the rotating table is fixed on the upper end of the telescopic column.

7. The quick positioning laser range finder calibration platform of claim 1, wherein: ​

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