Laser ranging precision detector

Abstract

The invention relates to a laser ranging precision detector, which belongs to the laser ranging detection technology and comprises a base, an annular target plate and a rotation control seat, a circular detection groove is formed in the top of the base, a first motor is embedded in the center of the circular detection groove, and the annular target plate is arranged in the circular detection groove. The annular target plate is formed by sequentially connecting a plurality of arc-shaped plates with different inner diameters, the arc-shaped circle center of each arc-shaped plate, the circle center of the circular detection groove and the circle center of the rotating control base longitudinally coincide, an inner groove is formed in the top of the rotating control base, and the midpoint of the side wall of the inner groove coincides with the axis of the rotating control base; an inner groove is formed in the rotating control base and used for containing a laser to be detected, manual hydraulic clamping pieces are symmetrically arranged at the positions, located on the front side and the rear side of the inner groove, of the top of the rotating control base, and the center of the bottom of the rotating control base is connected with an output shaft of a first motor. And the method has a relatively high application value.

Description

Technical Field

[0001] The invention relates to the technical field of laser distance measurement detection, in particular to a laser distance measurement accuracy detector. Background Art

[0002] When working, the laser rangefinder emits a very thin laser beam to the target. The photoelectric element receives the laser beam reflected by the target. The timer measures the time from the laser beam emission signal to the reception. The time is multiplied by the speed of light and divided by two to calculate the distance from the observer to the target. The laser rangefinder evaluates its ranging accuracy by comparing the known distance with the measurement result of the laser rangefinder.

[0003] A pulse laser ranging accuracy detector is disclosed in a Chinese invention patent with the announcement number CN118884412A, including a base plate, a limit frame fixedly connected to the left side of the upper surface of the base plate, and a mounting frame fixedly connected to the right side of the upper surface of the base plate. The limit frame includes a side guard plate, a limit rod and a sensor plate, the two ends of the limit rod are respectively fixedly connected to the side guard plates, the outer side of the side guard plate at the right end of the limit rod is fixedly connected to the sensor plate, the left side of the side guard plate is fixedly connected to the driving component, and the outer side of the limit rod is slidably connected to the ranging movable component. It can synchronously measure multiple pulse lasers, and can adjust or quickly replace the test board during the ranging process, which is convenient for synchronization and comparison of multiple pulse laser data.

[0004] In the above-disclosed technical solution, the position of the movable ranging active component is mainly moved, and the distance relative to the laser to be detected changes, so as to test the detection data of the laser at various distances. Although this detection method can adjust the test distance, the adjustment of the ranging active component requires frequent data correction, which is cumbersome and inefficient. In addition, due to the frequent changes in data, the calibration process needs to be precisely controlled, otherwise it will affect the ranging detection accuracy. In view of this, the present application is proposed. Summary of the invention

[0005] In order to overcome the technical defects of the prior art, the present invention provides a laser ranging accuracy detector, which has the effects of high detection automation and high detection accuracy.

[0006] The technical solution adopted by the present invention is: it includes a base, an annular target plate and a rotation control seat, the top of the base is provided with a circular detection groove, the center position of the circular detection groove is embedded with a first motor, the annular target plate is arranged in the circular detection groove, the annular target plate is composed of a plurality of arc plates with different inner diameters connected in sequence, the arc centers of each arc plate, the centers of the circular detection groove and the centers of the rotation control seat are longitudinally coincident, so as to ensure that the distance between the center point and the inner side wall of a single arc plate is constant when the rotation control seat rotates, so as to ensure the detection accuracy, an inner groove is provided on the top of the rotation control seat, the midpoint of the side wall of the inner groove coincides with the axis center of the rotation control seat, the inner groove is used for placing a laser to be detected, and manual hydraulic clamps are symmetrically arranged on the top of the rotation control seat at the front and rear sides of the inner groove, which are used to push the laser to be detected to move forward and backward until the light-emitting point of the laser to be detected is aligned with the axis center of the rotation control seat. Overlap, the bottom center position of the rotation control seat is connected to the output shaft of the first motor. When in use, the laser to be detected that needs to be accurately detected is turned on and placed in the inner groove, so that the light-emitting point of the laser to be detected faces the left wall of the inner groove. At this time, the light-emitting point of the laser to be detected is on the central axis of the rotation control seat, and then the manual hydraulic clamps on the front and rear sides are controlled to extend and retract by manually twisting, and the light-emitting point of the laser to be detected is pushed to move to the axis of the rotation control seat to coincide with it longitudinally. At this time, no matter how the rotation control seat rotates, the distance between the light-emitting point of the laser to be detected and the annular target plate is always constant. Then, it is only necessary to turn on the first motor to drive the rotation control seat to rotate, drive the laser to be detected to rotate, so that the light-emitting point illuminates the inner walls of each arc plate of the annular target plate respectively, measure the distance between the light-emitting point and the inner walls of each arc plate, and then compare it with the detection benchmark data to determine the measurement accuracy of the laser to be detected.

[0007] Preferably, side limiting edges are provided on the front and rear sides of the inner groove, and a front limiting edge is provided on the left side of the inner groove. The setting of each limiting edge provides a relatively stable installation environment for the laser to be detected, preventing the laser to be detected from easily detaching from the inner groove.

[0008] Preferably, the top of the side limit edge is connected to a plurality of elastic telescopic rods via a U-shaped bracket, and the telescopic ends of the elastic telescopic rods are commonly connected to an extrusion plate for applying pressure to the laser to be detected from the top, so that the laser to be detected can maintain a relatively stable structure when not subjected to external force, and will not shake or detach, thereby ensuring the stability of the detection environment.

[0009] Preferably, a front groove is opened on the left side of the rotating control seat, and a longitudinally arranged light bar is installed in the front groove. The linear light emitted by the light bar is projected onto the inner wall of the annular target plate, and the light emission direction is perpendicular to the left side wall of the inner groove and overlaps with the center point of the left side wall of the inner groove. The light bar serves as an auxiliary calibration function. Specifically, the light bar is turned on after the laser to be detected is placed in the inner groove. At this time, observe whether the light spot irradiated by the laser to be detected on the annular target plate coincides with the position of the light bar. If not, the laser to be detected is pushed by a manual hydraulic clamp so that the light spot emitted by the laser to be detected coincides with the light emitted by the light bar. At this time, it can be ensured that the light point of the laser to be detected overlaps with the axis of the rotating control seat longitudinally.

[0010] Preferably, the manual hydraulic clamping member consists of a liquid storage cylinder fixed to the top of the rotation control seat, a sealing cover arranged on the top of the liquid storage cylinder, a rotation driving assembly threadedly mounted on the sealing cover, a dispersion cylinder fixedly arranged on the top of the rotation control seat, and a hydraulic telescopic rod passed through and fixed in the side limit edge. The liquid supply port of each hydraulic telescopic rod is simultaneously connected to a dispersion seat, the dispersion seat is connected to the dispersion cylinder through a pipeline, and the dispersion cylinder is connected to the inner cavity of the liquid storage cylinder through a connecting pipe. The spatial pressure in the liquid storage cylinder is controlled by the rotation of the rotation driving assembly. When the pressure increases, the hydraulic fluid in the liquid storage cylinder can enter the dispersion cylinder through the connecting pipe, and then enter each hydraulic telescopic rod through the dispersion seat at the same time, so that the hydraulic telescopic rod is extended, and the clamping effect is achieved by manual hydraulic drive.

[0011] Preferably, the rotary drive assembly consists of a threaded rod threadedly mounted on the sealing cover, a plunger disposed in the liquid storage cylinder, and a rotating handle fixedly disposed on the top of the threaded rod. The top center position of the plunger is rotatably connected to the bottom of the threaded rod, so that the plunger can be pushed to move up and down in the liquid storage cylinder when the threaded rod is rotated. In actual use, the rotation of the threaded rod is controlled by rotating the handle, so that the threaded rod moves up and down relative to the sealing cover, thereby controlling the height of the plunger below, and utilizing the lifting and lowering of the plunger to achieve control of the hydraulic fluid below.

[0012] Preferably, a flow-balancing and constant temperature system is also included, a first annular groove is provided on the top of the base, the flow-balancing and constant temperature system includes a rotating frame rotatably arranged in the first annular groove and a driving member embedded in the base, the driving member is meshed with the rotating frame gear to drive the rotating frame to rotate in the first annular groove, the flow-balancing and constant temperature system can form a stable temperature environment in the area above the base and the detection groove, which is used to ensure that the detection environment of the laser to be detected is constant and avoid data deviation of the laser to be detected due to low temperature or high temperature, and the flow-balancing and constant temperature system generates extremely small airflow when in use, and also has an airflow counteracting structure, which can make each area stable and the same as soon as possible while maintaining the temperature environment, and avoid the occurrence of excessive local temperature differences.

[0013] Preferably, the rotating frame comprises a rotating ring and an external gear arranged on the outer side of the bottom of the rotating ring, a second ring groove for accommodating the external gear is provided at the bottom of the first ring groove, the driving member comprises a second motor and a driving gear connected to the output shaft of the second motor, the driving gear is meshedly connected with the external gear, and the rotating frame is driven to rotate in the first ring groove and the second ring groove by opening the driving member; A constant temperature air storage cavity is provided in the base, wherein a heating wire is built into the constant temperature air storage cavity, the outer side of the air storage cavity is connected with the second annular groove through the first connecting groove, and the top of the air storage cavity is connected with the detection groove through the second connecting groove.

[0014] Preferably, a plurality of heat control elements are arranged in a circular array on the top of the rotating ring, which are used to suck in the air from above and then introduce it into the constant temperature air storage chamber. A plurality of longitudinal through holes are opened in a circular array on the rotating ring, which serve as gas circulation channels between the heat control elements and the first connecting groove. In actual application, the rotation of the rotating frame drives each heat control element to rotate around the detection groove. At the same time, the heat control element is used to absorb the air from above and then introduce the air into the rotating frame, and then enter the air storage chamber through the first connecting groove below. After being heated by the heating wire, the hot air is discharged to the top through the second connecting groove, so as to form a stable temperature environment in the detection groove.

[0015] Preferably, the heat control element consists of an air pump fixedly arranged on the top of the rotating ring, a longitudinal air pump installed on the air inlet of the air pump, and a transverse air pump connected to the air pump through the longitudinal air pump, the transverse air pump extending toward the central area of ​​the detection groove, one end of the transverse air pump is connected to an elliptical hollow cylinder through a rotating joint, a conical spiral groove is provided on one side of the elliptical hollow cylinder, and air holes that penetrate inside and outside are provided on the outer wall of the hollow cylinder and in the spiral groove, the air pump is used to generate suction, and the air in the hollow cylinder is sucked in through the longitudinal air pump and the transverse air pump, and then the air around the hollow cylinder is sucked in.

[0016] The beneficial effects of the present invention are: 1. The present invention drives the light-emitting point of the laser to be detected to rotate by rotating the rotation control seat, so that the light-emitting point illuminates the inner walls of each arc plate of the annular target plate respectively, measures the distance between the light-emitting point and the inner walls of each arc plate, and then compares it with the detection reference data to determine the measurement accuracy of the laser to be detected. The light-emitting point is rotated and the annular target plate is fixed for measurement. The detection operation is simple and fast, and the degree of automation is high. The annular target plate adopts a special arc plate combination structure, which has multiple target points with different detection distances while maintaining a fixed state. It can realize the detection of multiple distances at one time without repeatedly adjusting the position of the target plate, and it is no longer necessary to repeatedly calibrate the data accuracy. It not only improves the degree of automation of detection, but also can effectively ensure the detection accuracy, and has a high application value.

[0017] 2. The present invention also has a flow-equalizing and constant-temperature system, which can form a stable temperature environment in the area above the base and the detection tank, so as to ensure that the detection environment of the laser to be detected is constant, and avoid data deviation of the laser to be detected caused by low or high temperature. The flow-equalizing and constant-temperature system generates very small airflow when in use, and also has an airflow counter-attack structure, which can make each area stable and the same as soon as possible while maintaining the temperature environment, and avoid the occurrence of excessive local temperature differences. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A partial enlarged view of the middle part; Figure 3 This is a schematic diagram of the structure of the present invention after longitudinal explosion; Figure 4 It is a structural schematic diagram of the rotation control seat in the present invention; Figure 5 It is a structural schematic diagram of the manual hydraulic clamping member in the present invention; Figure 6 It is a structural schematic diagram of the rotary drive assembly in the present invention; Figure 7 It is a front cross-sectional view of the base in the present invention; Figure 8 It is a schematic diagram of the structure of the rotating frame and the driving member in the present invention; Fig. 9 is a schematic diagram of the distribution of the heat control components in the present invention; Fig.10 It is a schematic diagram of the specific structure of the heat control element in the present invention.

[0019] Description of the accompanying drawings: In the figure: 1, base; 101, detection groove; 102, first ring groove; 103, second ring groove; 104, constant temperature gas storage chamber; 105, first connecting groove; 106, second connecting groove; 2, annular target plate; 3, rotation control seat; 301, inner groove; 302, side limit edge; 303, U-shaped bracket; 304, extrusion plate; 305, front groove; 306, light bar; 307, front limit edge; 4, manual hydraulic clamp; 401, liquid storage cylinder; 402, sealing cover; 403, rotation drive assembly; 404, Dispersion cylinder; 405, connecting pipe; 406, dispersion seat; 407, hydraulic telescopic rod; 408, threaded rod; 409, plunger; 410, rotating handle; 5, laser to be detected; 6, rotating frame; 601, rotating ring; 602, external gear; 7, driving member; 701, second motor; 702, driving gear; 8, heat control member; 801, vacuum pump; 802, longitudinal vacuum pipe; 803, transverse vacuum pipe; 804, rotary joint; 805, hollow cylinder; 806, spiral groove; 807, vacuum hole; 9, first motor. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1-Figure 10 shown.

[0021] Example 1 The present embodiment provides a laser ranging accuracy detector, including a base 1, an annular target plate 2 and a rotating control seat 3. The top of the base 1 has a circular detection groove 101, and a first motor 9 is embedded in the center of the circular detection groove 101. The annular target plate 2 is arranged in the circular detection groove 101. The annular target plate 2 is composed of a plurality of arc plates with different inner diameters connected in sequence. The arc centers of each arc plate, the center of the circular detection groove 101 and the center of the rotating control seat 3 are longitudinally overlapped to ensure that the center point of the rotating control seat 3 is aligned with the center point of a single arc plate when the rotating control seat 3 rotates. The distance between the inner wall and the inner wall of the rotating control seat 3 is constant to ensure the detection accuracy. An inner groove 301 is provided on the top of the rotating control seat 3. The midpoint of the side wall of the inner groove 301 coincides with the axis of the rotating control seat 3. The inner groove 301 is used to place the laser 5 to be detected. The top of the rotating control seat 3 is symmetrically provided with manual hydraulic clamps 4 at the front and rear sides of the inner groove 301, which are used to push the laser 5 to be detected to move forward and backward until the light-emitting point of the laser 5 to be detected coincides with the axis of the rotating control seat 3. The bottom center of the rotating control seat 3 is connected to the output shaft of the first motor 9.

[0022] When the detector of the present invention is actually used, it is first necessary to accurately measure the distance between the axis of the rotating control seat 3 and each arc-shaped plate of the annular target plate 2 in advance to determine the basic data as the detection reference data, and then turn on the laser 5 to be detected that needs to be accurately detected and put it into the inner groove 301, so that the light-emitting point of the laser 5 to be detected is facing the left side wall of the inner groove 301. At this time, the light-emitting point of the laser 5 to be detected is on the central axis of the rotating control seat 3, and then the manual hydraulic clamps 4 on the front and rear sides are controlled to extend and retract by manually twisting, and the light-emitting point of the laser 5 to be detected is pushed to move to the axis of the rotating control seat 3 and coincide with it longitudinally. At this time, no matter how the rotating control seat 3 rotates, the distance between the light-emitting point of the laser 5 to be detected and the annular target plate 2 is always constant, and then it is only necessary to turn on the first motor 9 to drive the rotating control seat 3 to rotate, drive the laser 5 to be detected to rotate, so that the light-emitting The light points are respectively irradiated on the inner walls of the arc plates of the annular target plate 2, and the distances between the light points and the inner walls of the arc plates are measured. Then, the measurement accuracy of the laser 5 to be detected can be determined by comparing with the detection reference data. Compared with the existing precision detectors, the present application adopts the method of rotating the light points while keeping the annular target plate 2 for measurement fixed for detection. On the one hand, it is only necessary to fix the laser 5 to be detected and then turn on the first motor 9 for detection. The operation is simple and fast with a high degree of automation. On the other hand, the annular target plate 2 adopts a special arc plate combination structure, which has multiple target points with different detection distances while maintaining a fixed state. It can realize the detection of multiple distances at one time without repeatedly adjusting the position of the target plate, and it is also no longer necessary to repeatedly calibrate the data accuracy. Overall, it not only improves the degree of automation of detection, but also can effectively guarantee the detection accuracy, and has a high application value.

[0023] Side limiting edges 302 are provided on the front and rear sides of the inner groove 301, and a front limiting edge 307 is provided on the left side of the inner groove 301. The setting of each limiting edge provides a relatively stable installation environment for the laser 5 to be detected to prevent the laser 5 to be detected from easily detaching from the inner groove 301. The top of the side limiting edge 302 is connected to a plurality of elastic telescopic rods through a U-shaped bracket 303, and an extrusion plate 304 is commonly connected to the telescopic end of each elastic telescopic rod, which is used to apply pressure to the laser 5 to be detected from the top, so that the laser 5 to be detected can maintain a relatively stable structure when not subjected to external force, and will not shake or detach, thereby ensuring the stability of the detection environment.

[0024] Specific as Figure 4As shown, a front groove 305 is provided on the left side of the rotating control seat 3, and a longitudinally arranged light bar 306 is installed in the front groove 305. The linear light irradiated by the light bar 306 is projected onto the inner wall of the annular target plate 2, and the light emission direction is perpendicular to the left side wall of the inner groove 301 and overlaps with the center point of the left side wall of the inner groove 301. The light bar 306 plays an auxiliary calibration function. Specifically, after the laser 5 to be detected is placed in the inner groove 301, the light bar 306 is turned on. At this time, it is observed whether the light spot irradiated by the laser 5 to be detected on the annular target plate 2 coincides with the position of the light bar 306. If not, the laser 5 to be detected is pushed by the manual hydraulic clamp 4, so that the light spot emitted by the laser 5 to be detected coincides with the light emitted by the light bar 306. At this time, it can be ensured that the light point of the laser 5 to be detected overlaps with the axis of the rotating control seat 3 in the longitudinal direction.

[0025] Specific as Figure 5 As shown, the manual hydraulic clamping member 4 is composed of a liquid storage cylinder 401 fixed to the top of the rotation control seat 3, a sealing cover 402 arranged on the top of the liquid storage cylinder 401, a rotation drive assembly 403 threadedly installed on the sealing cover 402, a dispersion cylinder 404 fixedly arranged on the top of the rotation control seat 3, and a hydraulic telescopic rod 407 fixed in the side limit edge 302. The liquid supply port of each hydraulic telescopic rod 407 is connected to a dispersion seat 406 at the same time. The dispersion seat 406 is connected to the dispersion cylinder 404 through a pipeline. The dispersion cylinder 404 is connected to the inner cavity of the liquid storage cylinder 401 through a connecting pipe 405. The rotation drive assembly 403 The rotation controls the spatial pressure in the liquid storage cylinder 401. When the pressure increases, the hydraulic fluid in the liquid storage cylinder 401 can enter the dispersion cylinder 404 through the connecting pipe 405, and then enter each hydraulic telescopic rod 407 through the dispersion seat 406 at the same time, so that the hydraulic telescopic rod 407 is extended, and the clamping effect is achieved by manual hydraulic drive. This structural design not only has the advantages of simple and flexible operation, but also has a certain adaptive contraction function. When in use, when the hydraulic telescopic rod 407 on one side is extended to press the laser 5 to be detected, the hydraulic telescopic rod 407 on the other side will automatically retract under pressure, and there is no need to operate the clamps on both sides at the same time.

[0026] Specific as Figure 6 As shown, the rotary drive assembly 403 consists of a threaded rod 408 threadedly mounted on the sealing cover 402, a plunger 409 disposed in the liquid storage cylinder 401, and a rotating handle 410 fixedly disposed on the top of the threaded rod 408. The top center position of the plunger 409 is rotatably connected to the bottom of the threaded rod 408, so that when the threaded rod 408 rotates, the plunger 409 can be pushed to move up and down in the liquid storage cylinder 401. In actual use, the rotation of the threaded rod 408 is controlled by rotating the handle 410, so that the threaded rod 408 moves up and down relative to the sealing cover 402, thereby controlling the height of the plunger 409 below, and utilizing the lifting and lowering of the plunger 409 to control the hydraulic fluid below.

[0027] Example 2 This embodiment adds a flow-balanced constant temperature system on the basis of the embodiment 1. A first annular groove 102 is provided on the top of the base 1. The flow-balanced constant temperature system includes a rotating frame 6 rotatably arranged in the first annular groove 102 and a driving member 7 embedded in the base 1. The driving member 7 is connected with the rotating frame 6 by gear meshing to drive the rotating frame 6 to rotate in the first annular groove 102. The rotating frame 6 includes a rotating ring 601 and an external gear 602 provided on the outer side of the bottom of the rotating ring 601. The bottom of the first annular groove 102 is provided with a first gear for accommodating the external gear 602. Second annular groove 103, the driving member 7 includes a second motor 701 and a driving gear 702 connected to the output shaft of the second motor 701, the driving gear 702 is meshed with the external gear 602, and the driving member 7 is opened to drive the rotating frame 6 to rotate in the first annular groove 102 and the second annular groove 103, a constant temperature air storage chamber 104 is opened in the base 1, and the constant temperature air storage chamber 104 has a built-in heating wire, the outer side of the air storage chamber is connected to the second annular groove through the first connecting groove 105, and the top of the air storage chamber is connected to the detection groove 101 through the second connecting groove 106.

[0028] A plurality of heat control components 8 are arranged in a circular array on the top of the rotating ring 601, which are used to absorb the air from above and then introduce it into the constant temperature air storage chamber 104. A plurality of longitudinal through holes are opened in a circular array on the rotating ring 601, which serve as gas circulation channels between the heat control components 8 and the first connecting groove 105. In actual application, the rotation of the rotating frame 6 drives each heat control component 8 to rotate around the detection groove 101. At the same time, the heat control component 8 is used to absorb the air from above and then introduce the air into the rotating frame 6, and then enter the air storage chamber through the first connecting groove 105 below. After being heated by the heating wire, the hot air is discharged to the top through the second connecting groove 106, so as to form a stable temperature environment in the detection groove 101.

[0029] Specific as Fig.10As shown, the heat control member 8 is composed of an air pump 801 fixedly arranged on the top of the rotating ring 601, a longitudinal air pumping pipe 802 installed on the air inlet of the air pump 801, and a transverse air pumping pipe 803 connected with the air pump 801 through the longitudinal air pumping pipe 802. The transverse air pumping pipe 803 extends toward the central area of ​​the detection tank 101, and one end of the transverse air pumping pipe 803 is connected to an elliptical hollow cylinder 805 through a rotating joint 804. A conical spiral groove 806 is opened on one side of the elliptical hollow cylinder 805. The outer wall of the hollow cylinder 805 and the spiral groove 806 are both provided with air pumping holes 807 that penetrate inside and outside. The vacuum pump 801 is used to generate suction, and the air in the hollow cylinder 805 is sucked in through the longitudinal vacuum pipe 802 and the transverse vacuum pipe 803, and then the air around the hollow cylinder 805 is sucked in. At the same time, the rotary joint 804 connecting the hollow cylinder 805 and the transverse vacuum pipe 803 adopts a low-resistance joint, which produces the effect that after the hollow cylinder 805 is slightly rotated, the hollow cylinder 805 can rotate on its own for a long time. During rotation, an airflow that pushes forward relative to the thread groove can be generated through the thread groove, and the airflows generated between the two corresponding hollow cylinders 805 on the left and right or front and back will collide to achieve the effect of balancing the air state.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A laser ranging accuracy detector, characterized in that: include: A base (1) having a circular detection groove (101) on the top, wherein a first motor (9) is embedded and installed at the center of the circular detection groove (101); An annular target plate (2) is arranged in the circular detection groove (101), and the annular target plate (2) is composed of a plurality of arc-shaped plates with different inner diameters connected in sequence; A rotation control seat (3) is provided with an inner groove (301) at the top, the midpoint of the side wall of the inner groove (301) coincides with the axis of the rotation control seat (3), the inner groove (301) is used to place the laser to be detected (5), and manual hydraulic clamping parts (4) are symmetrically arranged at the top of the rotation control seat (3) at the front and rear sides of the inner groove (301) and are used to push the laser to be detected (5) to move forward and backward until the light-emitting point of the laser to be detected (5) coincides with the axis of the rotation control seat (3), and the bottom center of the rotation control seat (3) is connected to the output shaft of the first motor (9).

2. The laser ranging accuracy detector according to claim 1, characterized in that: Side limiting edges (302) are provided on the front and rear sides of the inner groove (301), and a front limiting edge (307) is provided on the left side of the inner groove (301).

3. The laser ranging accuracy detector according to claim 2, characterized in that: The top of the side limiting edge (302) is connected to a plurality of elastic telescopic rods via a U-shaped bracket (303), and the telescopic ends of the elastic telescopic rods are commonly connected to an extrusion plate (304) for applying pressure to the laser to be detected (5) from the top.

4. The laser ranging accuracy detector according to claim 3, characterized in that: A front groove (305) is provided on the left side of the rotation control seat (3), and a longitudinally arranged light bar (306) is installed in the front groove (305). The linear light emitted by the light bar (306) is projected onto the inner wall of the annular target plate (2), and the light emission direction is perpendicular to the left side wall of the inner groove (301) and overlaps with the center point of the left side wall of the inner groove (301).

5. The laser ranging accuracy detector according to claim 2, characterized in that: The manual hydraulic clamping member (4) is composed of a liquid storage cylinder (401) fixed to the top of the rotation control seat (3), a sealing cover (402) arranged on the top of the liquid storage cylinder (401), a rotation drive assembly (403) threadedly mounted on the sealing cover (402), a dispersion cylinder (404) fixedly arranged on the top of the rotation control seat (3), and a hydraulic telescopic rod (407) inserted and fixed in the side limit edge (302), wherein the liquid supply port of each hydraulic telescopic rod (407) is simultaneously connected to a dispersion seat (406), the dispersion seat (406) is connected to the dispersion cylinder (404) through a pipeline, and the dispersion cylinder (404) is connected to the inner cavity of the liquid storage cylinder (401) through a connecting pipe (405).

6. The laser ranging accuracy detector according to claim 5, characterized in that: The rotary drive assembly (403) comprises a threaded rod (408) threadedly mounted on the sealing cover (402), a plunger (409) disposed in the liquid storage cylinder (401), and a rotating handle (410) fixedly disposed on the top of the threaded rod (408); the top center position of the plunger (409) is rotatably connected to the bottom of the threaded rod (408), so that when the threaded rod (408) rotates, the plunger (409) can be pushed to move up and down in the liquid storage cylinder (401).

7. The laser ranging accuracy detector according to claim 1, characterized in that: The invention also comprises a flow-balanced constant temperature system, wherein a first annular groove (102) is provided on the top of the base (1), and the flow-balanced constant temperature system comprises a rotating frame (6) rotatably arranged in the first annular groove (102) and a driving member (7) embedded in the base (1), wherein the driving member (7) is gear-engaged with the rotating frame (6) to drive the rotating frame (6) to rotate in the first annular groove (102).

8. The laser ranging accuracy detector according to claim 7, characterized in that: The rotating frame (6) comprises a rotating ring (601) and an external gear (602) arranged on the outer side of the bottom of the rotating ring (601); a second ring groove (103) for accommodating the external gear (602) is provided at the bottom of the first ring groove (102); the driving member (7) comprises a second motor (701) and a driving gear (702) connected to an output shaft of the second motor (701); the driving gear (702) is meshingly connected to the external gear (602); A constant temperature air storage cavity (104) is provided in the base (1), wherein a heating wire is built into the constant temperature air storage cavity (104); the outer side of the air storage cavity is connected to the second annular groove (103) via a first connecting groove (105); and the top of the air storage cavity is connected to the detection groove (101) via a second connecting groove (106).

9. The laser ranging accuracy detector according to claim 8, characterized in that: A plurality of heat control elements (8) are arranged in a circular array on the top of the rotating ring (601) for sucking in the air above and introducing it into the constant temperature air storage chamber (104). A plurality of longitudinal through holes are opened in a circular array on the rotating ring (601) as gas flow channels between the heat control elements (8) and the first connecting groove (105).

10. The laser ranging accuracy detector according to claim 9, characterized in that: The heat control element (8) is composed of an air pump (801) fixedly arranged on the top of the rotating ring (601), a longitudinal air pump (802) installed on the air inlet of the air pump (801), and a transverse air pump (803) connected to the air pump (801) through the longitudinal air pump (802), wherein the transverse air pump (803) extends toward the central area of ​​the detection groove (101), and one end of the transverse air pump (803) is connected to an elliptical hollow cylinder (805) through a rotating joint (804), and a conical spiral groove (806) is provided on one side of the elliptical hollow cylinder (805), and an air pump hole (807) that penetrates inside and outside is provided on the outer wall of the hollow cylinder (805) and in the spiral groove (806).

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