Shockproof high-precision laser range finder calibration platform

Abstract

The utility model discloses a shockproof high accuracy laser range finder calibration platform relates to range finder calibration technical field, including vibration isolation frame, four support legs lower extreme of vibration isolation frame is provided with a group of inclination adjustment components respectively, and the upper wall fixed mounting of vibration isolation frame has four groups of connecting seat, and the upper end of four connecting seat is provided with a group of air -float type vibration damper respectively, and the upper end of four air -float type vibration damper is provided with a group of optical platform, the upper wall fixed mounting of optical platform has two sets of limit frame, and the outer wall fixed mounting of limit frame has two sets of fixed plate, the utility model discloses, can greatly attenuate the vibration from the environment generation, prevent the laser light path deviation caused by microshift, thereby significantly reduce the measurement error, will provide convenient fixing device simultaneously, prevent range finder from sliding, tilting or rotating in the operation process, ensure the precision and stability of laser beam emission and receiving direction.

Description

Technical Field

[0001] This utility model relates to the field of rangefinder calibration technology, specifically a shockproof high-precision laser rangefinder calibration platform. Background Technology

[0002] With the rapid development of laser technology, high-precision laser rangefinders have been widely used in various fields such as surveying, industrial measurement, construction, security monitoring, and scientific research experiments. The accuracy of their measurement results is directly related to the accuracy and reliability of subsequent work. Therefore, it is particularly important to regularly calibrate high-precision laser rangefinders to ensure that their measurement performance meets the standards. However, in the process of practical application and calibration, existing rangefinder calibration platforms have exposed several key problems, which restrict the calibration accuracy and efficiency. Existing platforms typically lack the ability to fix laser rangefinders. Many platforms only provide a simple placement surface. Once the rangefinder experiences even a slight slip, tilt, or rotation, the direction of its emitted or received laser beam will change, causing the measurement reference to shift. In the real world, it is difficult to achieve an ideal, perfectly horizontal plane, and the platform itself may have an imperceptible tilt. Furthermore, depending on different calibration requirements, it is sometimes necessary to set the rangefinder or reference target at a specific tilt angle for testing.

[0003] Therefore, there is an urgent need to develop a new type of rangefinder calibration platform that can effectively overcome the above problems and provide a more stable, reliable and accurate calibration environment for high-precision laser rangefinders. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a shockproof high-precision laser rangefinder calibration platform.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shockproof high-precision laser rangefinder calibration platform, including a vibration isolation frame, wherein a set of tilt adjustment components are respectively provided at the lower ends of the four legs of the vibration isolation frame, four sets of connecting seats are fixedly installed on the upper wall of the vibration isolation frame, a set of air-floating vibration isolators are respectively provided at the upper ends of the four sets of connecting seats, and an optical platform is provided at the upper ends of the four sets of air-floating vibration isolators. Two sets of limiting frames are fixedly installed on the upper wall of the optical platform. The outer walls of the two sets of limiting frames are respectively provided with two sets of connecting slots, and sliding rods are inserted into the connecting slots. The outer walls of the two sets of limiting frames are respectively provided with sliding grooves. Two sets of fixing plates are fixedly installed on the outer walls of the limiting frames. A set of limiting rods is fixedly connected to the outer walls of the two sets of fixing plates. A set of telescopic springs is sleeved on the outside of the two sets of limiting rods. Two sets of sliding plates are installed between the two sets of fixing plates. Sliding blocks are sleeved on the outside of the sliding rods.

[0006] The aforementioned tilt adjustment assembly includes a columnar seat fixedly connected to the lower wall of the vibration isolation frame leg. The lower wall of the columnar seat has a slot, a lead screw is provided inside the columnar seat, and a fixing nut is fixedly provided on the outer wall of the lead screw.

[0007] As described above, the lower end of the lead screw is provided with a ground contact base, and the upper wall of the ground contact base is provided with a threaded groove, and the lower half of the lead screw is inserted into the threaded groove provided in the upper wall of the ground contact base.

[0008] The air-floating vibration isolator mentioned above includes an isolator body disposed on the upper end of the connecting seat, a bearing cover plate disposed on the upper end of the isolator body, a horizontal adjustment valve installed on the right end of the isolator body, and the isolator body and the horizontal adjustment valve are connected by a connecting line.

[0009] As mentioned above, a set of limiting sleeves are respectively fitted at both ends of the slide rod, and the outer diameter of the limiting sleeve is larger than the inner diameter of the connecting slot hole opened on the outer wall of the limiting frame.

[0010] As described above, the upper wall of the optical platform is provided with two sets of square mounting slots, and each of the two sets of mounting slots is provided with a set of embedded precision rulers. After installation, the embedded precision rulers are flush with the upper wall of the optical platform.

[0011] As described above, the outer walls of the two sets of sliding plates are respectively provided with two sets of limiting holes. The sliding plates are close to the limiting rods. The left walls of the two sets of sliding plates are respectively fixedly connected with a set of connecting rods. The left end of the connecting rod is threaded and a nut is fitted on the left end of the connecting rod. The nut is installed on the left side of the limiting frame.

[0012] Compared with existing technologies, this shockproof high-precision laser rangefinder calibration platform has the following advantages: I. The improved platform of this utility model has an effective anti-vibration function, which can significantly attenuate vibrations generated by the environment. This ensures the absolute stability of the platform base and the reference target position, prevents laser optical path deviation caused by micro-displacement, thereby significantly reducing measurement errors and improving the accuracy and reliability of calibration results.

[0013] II. This utility model provides a convenient fixing device to prevent the rangefinder from sliding, tilting, or rotating during operation, ensuring the accuracy and stability of the laser beam emission and reception directions. Simultaneously, the platform is equipped with a convenient tilt adjustment function, which not only makes it easy to accurately level the platform but also allows for quick setting of specific tilt angles as needed, ensuring the consistency of the measurement benchmark and meeting diverse calibration requirements.

[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the tilt adjustment component of this utility model; Figure 3 This is a schematic diagram of the connecting seat structure of this utility model; Figure 4 This is a top view of the structure of this utility model; Figure 5 This is a top view of the fixing component of this utility model; Figure 6 This is a schematic diagram of the internal cross-section of the fixing component of this utility model.

[0016] In the diagram: 1. Vibration isolation frame; 101. Column base; 102. Lead screw; 103. Fixing nut; 104. Ground contact base; 105. Connecting seat; 106. Vibration isolator body; 107. Bearing cover plate; 108. Horizontal adjustment valve; 109. Connecting line; 2. Optical platform; 201. Limiting frame; 202. Slide rod; 203. Limiting sleeve; 204. Slide groove; 205. Embedded precision ruler; 206. Fixing plate; 207. Sliding plate; 208. Connecting rod; 209. Limiting rod; 210. Telescopic spring; 211. Limiting hole; 212. Sliding block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-6 As shown, this utility model provides a technical solution: a shockproof high-precision laser rangefinder calibration platform, including a vibration isolation frame 1. The lower ends of the four legs of the vibration isolation frame 1 are respectively provided with a set of tilt adjustment components. The upper wall of the vibration isolation frame 1 is fixedly installed with four sets of connecting seats 105. The upper ends of the four sets of connecting seats 105 are respectively provided with a set of air-floating vibration isolators. The upper ends of the four sets of air-floating vibration isolators are provided with a set of optical platforms 2. Two sets of limiting frames 201 are fixedly installed on the upper wall of the optical platform 2. The outer walls of the two sets of limiting frames 201 are respectively provided with two sets of connecting slots, and slide rods 202 are inserted into the connecting slots. The outer walls of the two sets of limiting frames 201 are respectively provided with sliding grooves 204. Two sets of fixing plates 206 are fixedly installed on the outer walls of the two sets of fixing plates 206. A set of limiting rods 209 are fixedly connected to the outer walls of the two sets of fixing plates 206. A set of telescopic springs 210 are respectively sleeved on the outside of the two sets of limiting rods 209. Two sets of sliding plates 207 are installed between the two sets of fixing plates 206. A sliding block 212 is sleeved on the outside of the slide rods 202.

[0019] Based on the overall structure of the device, the improved platform has effective shock absorption capabilities, which can significantly attenuate vibrations from the environment. This ensures the absolute stability of the platform base and the reference target position, preventing laser beam path deviation caused by micro-displacement, thereby significantly reducing measurement errors and improving the accuracy and reliability of calibration results. At the same time, the new platform provides a convenient fixing device to prevent the rangefinder from sliding, tilting, or rotating during operation, ensuring the accuracy and stability of the laser beam emission and reception directions. In addition, the platform will be equipped with a convenient tilt adjustment function, which not only makes it easy to accurately level the platform, but also allows for the quick setting of specific tilt angles as needed, ensuring the consistency of the measurement reference and meeting diverse calibration requirements.

[0020] like Figure 2 As shown, the tilt adjustment assembly includes a column base 101 fixedly connected to the lower wall of the support leg of the vibration isolation frame 1. The lower wall of the column base 101 has a slot, and a lead screw 102 is provided inside the column base 101. A fixing nut 103 is fixedly provided on the outer wall of the lead screw 102.

[0021] By using a column base 101 to fix the vibration isolation frame 1, and fixing a nut 103 to the outside of the lead screw 102, the lead screw 102 can be rotated by turning the fixing nut 103.

[0022] like Figure 2 As shown, a ground contact base 104 is provided at the lower end of the lead screw 102. A threaded groove is provided on the upper wall of the ground contact base 104, and the lower half of the lead screw 102 is inserted into the threaded groove provided on the upper wall of the ground contact base 104.

[0023] By turning the fixing nut 103, the lead screw 102 is driven to rotate, which allows the lead screw 102 to intersect with the thread groove, thereby converting the rotational motion into linear motion, and driving the cylindrical seat 101 to rise and fall.

[0024] like Figure 3As shown, the air-floating vibration isolator includes a vibration isolator body 106 disposed on the upper end of the connecting seat 105, a bearing cover plate 107 disposed on the upper end of the vibration isolator body 106, a horizontal adjustment valve 108 installed on the right end of the vibration isolator body 106, and the vibration isolator body 106 and the horizontal adjustment valve 108 are connected by a connecting line 109.

[0025] By installing connecting seats 105 and bearing cover plates 107 on the upper and lower sides of the air-floating vibration isolator, the connection between the vibration isolator and the device can be strengthened, so that it can play a vibration isolation effect.

[0026] like Figure 5 As shown, a set of limiting sleeves 203 are respectively fitted at both ends of the slide rod 202. The outer diameter of the limiting sleeve 203 is larger than the inner diameter of the connecting slot hole opened on the outer wall of the limiting frame 201.

[0027] By fitting limiting sleeves 203 at both ends of the slide rod 202, the limiting sleeves 203 can be used to limit the slide rod 202 and prevent it from slipping.

[0028] like Figure 5 As shown, the upper wall of the optical platform 2 is provided with two sets of square mounting slots, and each of the two sets of mounting slots is provided with a set of embedded precision rulers 205. After installation, the embedded precision rulers 205 are flush with the upper wall of the optical platform 2.

[0029] By mounting an embedded precision ruler 205 on the upper wall of the optical platform 2, the distance between the sliding block 212 and the rangefinder can be detected according to the embedded precision ruler 205.

[0030] like Figure 6 As shown, the outer walls of the two sets of sliding plates 207 are respectively provided with two sets of limiting holes 211. The sliding plates 207 and the limiting rods 209 are close to each other. A set of connecting rods 208 are fixedly connected to the left walls of the two sets of sliding plates 207 respectively. The left end of the connecting rod 208 is threaded and a nut is sleeved on the left end of the connecting rod 208. The nut is installed on the left side of the limiting frame 201.

[0031] By setting a connecting rod 208 at the left end of the sliding plate 207 for limiting, the sliding plate 207 can be displaced to compress the telescopic spring 210, thereby placing the rangefinder.

[0032] Working Principle: This device is used to calibrate a laser rangefinder. Before calibration, the overall platform tilt angle is adjusted according to the calibration requirements. First, the fixing nut 103 is clamped with a wrench, and then the fixing nut 103 is rotated. The fixing nut 103 will drive the lead screw 102 to rotate, causing the lead screw 102 to interlock with the thread groove. Then, it will move up and down. At this time, the level of the platform can be checked with a level, or the tilt angle can be measured with a goniometer and adjusted to the required platform angle. During calibration, the laser rangefinder is first placed on two sets of... Between the sliding plates 207, the sliding plates 207 will compress the telescopic spring 210. When the sliding plates 207 are released, the two sets of sliding plates 207 will compress the rangefinder and then fix it, ensuring that the rangefinder remains in a vertical state. During calibration, the sliding block 212 can be slid according to the required calibration distance, and the actual distance can be read through the embedded precision ruler 205. The laser rangefinder is calibrated according to the actual distance. At the same time, the overall platform also uses an air-floating vibration isolator and an optical platform 2 for shock absorption, so that the distance measurement is not affected by vibration.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration-resistant high-precision laser rangefinder calibration platform, comprising a vibration isolation frame (1), characterized in that: The lower ends of the four legs of the vibration isolation frame (1) are respectively provided with a set of tilt adjustment components. The upper wall of the vibration isolation frame (1) is fixedly installed with four sets of connecting seats (105). The upper ends of the four sets of connecting seats (105) are respectively provided with a set of air-floating vibration isolators. The upper ends of the four sets of air-floating vibration isolators are provided with a set of optical platforms (2). Two sets of limiting frames (201) are fixedly installed on the upper wall of the optical platform (2). The outer walls of the two sets of limiting frames (201) are respectively provided with two sets of connecting slots, and sliding rods (202) are respectively inserted into the connecting slots. The outer walls of the two sets of limiting frames (201) are respectively provided with sliding grooves (204). Two sets of fixing plates (206) are fixedly installed on the outer walls of the limiting frames (201). A set of limiting rods (209) are fixedly connected to the outer walls of the two sets of fixing plates (206). A set of telescopic springs (210) are respectively sleeved on the outside of the two sets of limiting rods (209). Two sets of sliding plates (207) are installed between the two sets of fixing plates (206). A sliding block (212) is sleeved on the outside of the sliding rods (202).

2. The shockproof high-precision laser rangefinder calibration platform according to claim 1, characterized in that: The tilt adjustment assembly includes a column base (101) fixedly connected to the lower wall of the support leg of the vibration isolation frame (1). The lower wall of the column base (101) is provided with a slot. A lead screw (102) is provided inside the column base (101). A fixing nut (103) is fixedly provided on the outer wall of the lead screw (102).

3. The shockproof high-precision laser rangefinder calibration platform according to claim 2, characterized in that: The lower end of the lead screw (102) is provided with a ground contact base (104), and the upper wall of the ground contact base (104) is provided with a threaded groove. The lower half of the lead screw (102) is inserted into the threaded groove on the upper wall of the ground contact base (104).

4. The shockproof high-precision laser rangefinder calibration platform according to claim 1, characterized in that: The air-floating vibration isolator includes a vibration isolator body (106) provided at the upper end of the connecting seat (105), a bearing cover plate (107) provided at the upper end of the vibration isolator body (106), a horizontal regulating valve (108) installed at the right end of the vibration isolator body (106), and the vibration isolator body (106) and the horizontal regulating valve (108) are connected by a connecting line (109).

5. The shockproof high-precision laser rangefinder calibration platform according to claim 1, characterized in that: A set of limiting sleeves (203) are respectively fitted at both ends of the slide rod (202), and the outer diameter of the limiting sleeve (203) is larger than the inner diameter of the connecting slot hole opened on the outer wall of the limiting frame (201).

6. The shockproof high-precision laser rangefinder calibration platform according to claim 1, characterized in that: The upper wall of the optical platform (2) is provided with two sets of square mounting slots, and each set of two sets of mounting slots is provided with a set of embedded precision rulers (205). After installation, the embedded precision rulers (205) are flush with the upper wall of the optical platform (2).

7. The shockproof high-precision laser rangefinder calibration platform according to claim 1, characterized in that: The outer walls of the two sets of sliding plates (207) are respectively provided with two sets of limiting holes (211). The sliding plates (207) are close to the limiting rods (209). The left walls of the two sets of sliding plates (207) are respectively fixedly connected with a set of connecting rods (208). The left end of the connecting rods (208) is threaded and a nut is sleeved on the left end of the connecting rods (208). The nut is installed on the left side of the limiting frame (201).

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