A laser target plate calibration pull straightness instrument
Patent Information
- Application Number
- CN202522649211.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-12-15
AI Technical Summary
[0002]针对现役的武直十和武直九型直升机火控系统和武器挂载系统校正的实战化体系优化改良方案要求，目前使用的户内外靶板定位标定测定位置是用两组铅锤吊线手持定位在机腹纵轴标定点位置A和纵轴标定点位置B，再利用水平钢丝拉线法对远端处靶板基点A进行标定定位调整摆放，由于此方法对测试气候环境的要求高，主要是受环境风力影响和视觉影响，对机务人员操作难度大，人数多，标定测量不稳定，特别是受风力影响，钢丝铅锤定位不稳定，拉线精度低，费工又费时，靶板位置标定后误差大，实战化效率低
1）该装置通过激光标定仪和激光牵直仪利用可视准直的激光，可以不受气象环境的影响，为航空器的校靶系统实施全天候的测定靶板与标定；可提高航空器的火控武器挂载系统测试测定靶板的稳定性可准确性，有效解决由于风阻给钢丝吊线铅垂和钢丝水平线带来的误差与不确定性。设备采用弹性步丝轴系、阻尼微调及模块化设计，结构紧凑，环境适应性好，故障率低，维护简便，使用寿命长，综合保障成本显著降低。
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Figure CN224887970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calibration airborne equipment and target plate positioning technology, and in particular to a laser target plate calibration straightening instrument. Background Technology
[0002] In response to the requirements of the operational optimization and improvement scheme for the fire control system and weapon mounting system calibration of the Z-10 and Z-9 attack helicopters, the current indoor and outdoor target plate positioning and calibration method uses two sets of plumb lines to manually position the target plate at calibration point A and calibration point B on the longitudinal axis of the fuselage. Then, the target plate base point A at the far end is calibrated and adjusted using a horizontal steel wire method. This method is highly dependent on the test climate environment, mainly affected by wind and visual influences. It is difficult for maintenance personnel to operate, requires a large number of personnel, and the calibration measurement is unstable. In particular, the positioning of the steel wire and plumb lines is unstable due to wind, the accuracy of the wire pulling is low, it is labor-intensive and time-consuming, and the error after the target plate position is calibrated is large, resulting in low operational efficiency. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a laser target plate calibration straightening instrument.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A laser target calibration straightening instrument includes a protective cover and a fixing plate on the right side of the protective cover. The laser calibration instrument is disposed in the protective cover. The laser calibration instrument includes a laser body, a vertical laser emitter, a first horizontal level, a vertical level, a horizontal laser emitter, and a switch button. The laser body is movably installed inside the protective cover. The vertical laser emitter is fixedly installed at the top center of the laser body. The first horizontal level is horizontally fixed to the top of the laser body. The vertical level is vertically fixed to the top of the laser body. The horizontal laser emitter is fixedly installed on the side wall of the laser body. A hole is opened on the side wall of the protective cover corresponding to the horizontal laser emitter. The switch button is fixedly installed on the top of the laser body. A laser straightening instrument is fixedly installed on the top of the fixed plate. The laser straightening instrument includes an azimuth fine adjuster, a straightening laser emitter, a controller, a battery compartment, a second transverse level, and a base level. The azimuth fine adjuster is located on the top of the fixed plate. The straightening laser emitter is fixedly installed at the middle position of the top of the azimuth fine adjuster. The side wall of the azimuth fine adjuster is provided with laser straightening reticles, and the position of the laser straightening reticles is aligned with the laser emission point of the straightening laser emitter. The battery compartment is fixedly installed on the top of the azimuth fine adjuster. The controller is also fixedly installed on the top of the azimuth fine adjuster. The second transverse level is located on the left side of the azimuth fine adjuster and is fixedly installed on the top of the fixed plate. The base level is located on the right side of the azimuth fine adjuster and is also fixed on the top of the fixed plate.
[0005] As a further embodiment of this utility model, a fine-tuning frame is fixedly installed on the side wall of the protective cover, a reset rod is fixedly installed on the left side of the fine-tuning frame, a fine-tuning rod is threadedly installed on the right side of the fine-tuning frame, a connecting block is provided between the fine-tuning rod and the reset rod, and the connecting block is fixedly installed on the top of the laser body.
[0006] As a further embodiment of this utility model, three fixing brackets are fixedly installed at equal intervals on the outer side of the protective cover. A fine-tuning handwheel is threaded onto the top of the fixing bracket, and a support rod is fixedly installed at the bottom of the fine-tuning handwheel. The bottom of the support rod is conical.
[0007] As a further embodiment of this utility model, three adjusting handwheels are threadedly installed on both sides of the left end and the middle position of the right side of the fixing plate, and the three adjusting handwheels form an isosceles triangle. An adjusting rod is fixedly installed at the bottom of the adjusting handwheel, and the bottom of the adjusting rod is conical.
[0008] As a further embodiment of this utility model, a movable frame is fixedly installed on the top of the fixed plate corresponding to the position of the azimuth fine adjuster, the bottom of the azimuth fine adjuster is movably installed on the movable frame, a rotating handle is movably installed in the movable frame, and the bottom of the azimuth fine adjuster is threadedly connected to the rotating handle.
[0009] As a further embodiment of this invention, a battery cover is movably mounted on the top of the battery compartment.
[0010] As a further embodiment of this utility model, an indicator arrow is provided on the top of the laser body corresponding to the laser emission point of the horizontal laser emitter.
[0011] The above structure can be used in the following ways: 1) Place the laser calibrator below the longitudinal axis calibration point ⊙A on the tail of the aircraft belly, and adjust the horizontal attitude of the laser calibrator so that the vertical laser spot is aligned with the center of the longitudinal axis calibration point ⊙A. 2) Place the laser straightening instrument below the longitudinal axis calibration point ⊙B on the nose of the aircraft belly, and adjust the horizontal attitude of the laser straightening instrument so that the vertical laser spot is aligned with the center of the longitudinal axis calibration point ⊙B. 3) Operate the horizontal curvature fine adjuster on the laser calibrator to scan the horizontal laser spot onto the center of the vertical differentiation line on the laser straightening instrument to complete the calibration; 4) Based on the laser spot at 50 meters generated after calibration by the laser calibrator and laser straightener, determine the position of the target plate calibration point ⊙C, and complete the positioning by moving and adjusting the target plate.
[0012] The steps for adjusting the horizontal attitude include: adjusting three sets of fine-tuning handwheels to ensure that both level bulbs on the laser calibrator are in the middle area of the level window, and / or ensuring that one level bulb on the laser straightener is in the middle area of the level window.
[0013] Among them, a visible laser source is used to achieve three-point alignment and calibration by utilizing the unidirectional and linear properties of the laser. This method is used to replace the steel wire and plumb line calibration method and achieve accurate all-weather calibration of aircraft equipment and weapon mounting systems.
[0014] Compared with the prior art, the present invention has the following beneficial effects: 1) This device utilizes a laser calibration instrument and a laser straightener, employing visually collimated lasers, to provide all-weather target calibration and measurement for aircraft target systems, unaffected by weather conditions. It improves the stability and accuracy of target measurement for aircraft fire control weapon systems, effectively addressing errors and uncertainties caused by wind resistance affecting the plumbness and horizontality of the wire suspension lines. The equipment features an elastic step wire shaft system, damping fine-tuning, and modular design, resulting in a compact structure, good environmental adaptability, low failure rate, easy maintenance, long service life, and significantly reduced overall maintenance costs.
[0015] 2) This device can use 650nm and 638nm visible lasers. Utilizing the excellent linearity and unidirectionality of lasers, combined with an orthogonal optical path design and a zero-backlash fine-tuning mechanism, it achieves high-precision calibration of points ⊙A, ⊙B, and ⊙C in a straight line. The small, perfectly circular light spot ensures precise alignment, completely overcoming inherent defects such as wind-induced swaying of the steel wire and visual errors caused by the plumb bob. It controls the target plate positioning error to the millimeter level, demonstrating significantly better consistency and reliability than traditional methods.
[0016] 3) This system integrates a laser calibration instrument and a straightening instrument. Through a visual light spot and a simple leveling mechanism (level and fine-tuning handwheel), it simplifies the original time-consuming and multi-person string-pulling operation into a standardized process that can be completed by 1-2 people in a short time. The operation is intuitive and simple, greatly reducing the reliance on personnel experience and workload. The calibration time is shortened from tens of minutes to a few minutes, and the practical response capability is significantly enhanced.
[0017] 4) Laser calibration is largely unaffected by environmental wind and vibration, overcoming the bottleneck that traditional methods cannot be used in winds above level 3. This enables reliable all-weather operation under complex indoor and outdoor weather conditions, greatly expanding the spatial and temporal scope of aircraft target calibration training and support, and strongly supporting the combat readiness of equipment. In summary, this device fundamentally solves the three major pain points of traditional calibration methods: low accuracy, poor efficiency, and strong environmental dependence. It realizes the leap from mechanical to optoelectronic integration in target positioning technology and has significant value for improving the support effectiveness of aviation weapon systems. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a laser target plate calibration straightening alignment instrument proposed in this utility model; Figure 2 This is a side view of a laser target plate calibration straightening alignment instrument proposed in this utility model; Figure 3 This is a top view of a laser calibrator for calibrating a laser target plate straightening alignment value according to the present invention; Figure 4 This is a top view of a laser straightening instrument for calibrating the straightening value of a laser target plate according to the present invention; Figure 5 This is a schematic diagram illustrating the use of a laser target plate calibration straightening instrument proposed in this utility model.
[0019] In the diagram: 1. Protective cover; 2. Laser body; 3. Vertical laser emitter; 4. Fixing frame; 5. Fine-tuning handwheel; 6. Support rod; 7. First horizontal level; 8. Longitudinal level; 9. Horizontal laser emitter; 10. Marking arrow; 11. Switch button; 12. Fine-tuning frame; 13. Connecting block; 14. Fine-tuning rod; 15. Reset rod; 16. Fixing plate; 17. Azimuth fine-tuner; 18. Movable frame; 19. Rotating handle; 20. Straightening laser emitter; 21. Controller; 22. Battery compartment; 23. Battery cover; 24. Second horizontal level; 25. Adjusting handwheel; 26. Adjusting rod; 27. Base level; 28. Laser straightening reticle. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Reference Figure 1 - Figure 5 A laser target calibration straightening instrument includes a protective cover 1 and a fixing plate 16 on the right side of the protective cover 1. The protective cover 1 is equipped with a laser calibration instrument, which includes a laser body 2, a vertical laser emitter 3, a first horizontal level 7, a vertical level 8, a horizontal laser emitter 9, and a switch button 11. The laser body 2 is movably installed on the inner top of the protective cover 1. The vertical laser emitter 3 is fixedly installed in the middle of the top of the laser body 2. The first horizontal level 7 is horizontally fixed on the top of the laser body 2. The vertical level 8 is vertically fixed on the top of the laser body 2. The horizontal laser emitter 9 is fixedly installed on the side wall of the laser body 2. A hole is opened on the side wall of the protective cover 1 corresponding to the horizontal laser emitter 9. The switch button 11 is fixedly installed on the top of the laser body 2. A laser straightening device is fixedly installed on the top of the fixed plate 16. The laser straightening device includes an azimuth fine adjuster 17, a straightening laser emitter 20, a controller 21, a battery compartment 22, a second horizontal level 24, and a base level 27. The azimuth fine adjuster 17 is located on the top of the fixed plate 16. The straightening laser emitter 20 is fixedly installed at the middle position of the top of the azimuth fine adjuster 17. A laser straightening reticle 28 is provided on the side wall of the azimuth fine adjuster 17. The position of the laser straightening reticle 28 is aligned with the laser emission point of the straightening laser emitter 20. The battery compartment 22 is fixedly installed on the top of the azimuth fine adjuster 17. The controller 21 is also fixedly installed on the top of the azimuth fine adjuster 17. The second horizontal level 24 is located on the left side of the azimuth fine adjuster 17 and is fixedly installed on the top of the fixed plate 16. The base level 27 is located on the right side of the azimuth fine adjuster 17 and is also fixed on the top of the fixed plate 16. Move the protective cover 1 to... Below point A on the longitudinal axis of the helicopter's underside, with the arrow 10 on the laser body 2 pointing towards the nose, turn on the switch 11 on the laser body 2. Align the laser beam spot of the vertical laser emitter 3 with the center point of the longitudinal axis calibration point A. By rotating the three sets of fine-tuning handwheels 5, adjust the bubbles in the first horizontal level 7 and the longitudinal level 8 on the laser body 2 to the middle area of the level window. Then move the laser spot of the vertical laser emitter 3 to the longitudinal axis calibration point A. Place the fixing plate 16 below point B on the longitudinal axis of the helicopter's underside. Turn on the controller 21 on the azimuth fine-tuner 17. Align the laser beam spot of the traction laser emitter 20 with the center point of the longitudinal axis calibration point B. Then, by using the three sets of adjusting handwheels 25 on the fixing plate 16, adjust the bubble in the second horizontal level 24 on the fixing plate 16 to the middle area of the level window. Finally, move the laser spot of the traction laser emitter 20 to the longitudinal axis calibration point B.
[0024] In this embodiment, a fine-tuning frame 12 is fixedly installed on the side wall of the protective cover 1. A reset rod 15 is fixedly installed on the left side of the fine-tuning frame 12, and a fine-tuning rod 14 is threadedly installed on the right side of the fine-tuning frame 12. A connecting block 13 is provided between the fine-tuning rod 14 and the reset rod 15. The connecting block 13 is fixedly installed on the top of the laser body 2. By rotating the fine-tuning rod 14 on the fine-tuning frame 12, the connecting block 13 is controlled to drive the laser body 2 to rotate in the protective cover 1. The laser spot of the horizontal laser emitter 9 on the laser body 2 is scanned to the center of the laser straightening reticle 28 on the azimuth fine-tuner 17, and the calibration is completed.
[0025] In this embodiment, three fixed brackets 4 are fixedly installed at equal intervals on the outer side of the protective cover 1. A fine adjustment handwheel 5 is threaded on the top of the fixed bracket 4, and a support rod 6 is fixedly installed on the bottom of the fine adjustment handwheel 5. The bottom of the support rod 6 is conical. By rotating the three sets of fine adjustment handwheels 5, the laser body 2 can be adjusted to a horizontal state.
[0026] In this embodiment, three adjusting handwheels 25 are threadedly installed on the left side and the middle of the right side of the fixed plate 16. The three adjusting handwheels 25 form an isosceles triangle. An adjusting rod 26 is fixedly installed at the bottom of the adjusting handwheels 25. The bottom of the adjusting rod 26 is conical. By rotating the three sets of adjusting handwheels 25, the fixed plate 16 can be adjusted to a horizontal state.
[0027] In this embodiment, a movable frame 18 is fixedly installed on the top of the fixed plate 16 corresponding to the position of the azimuth adjuster 17. The bottom of the azimuth adjuster 17 is movably installed on the movable frame 18. A rotating handle 19 is movably installed in the movable frame 18. The bottom of the azimuth adjuster 17 is threadedly connected to the rotating handle 19. The position of the azimuth adjuster 17 on the movable frame 18 can be adjusted by rotating the handle 19.
[0028] In this embodiment, a battery cover 23 is movably installed on the top of the battery compartment 22, which facilitates the replacement of the battery in the battery compartment 22.
[0029] In this embodiment, an arrow 10 is provided on the top of the laser body 2 corresponding to the laser emission point of the horizontal laser emitter 9, so that the laser body 2 can point in the direction of the machine head.
[0030] From the above description, it can be seen that the above-described embodiments of this utility model achieve the following technical effects: When in use, move the protective cover 1 to below the longitudinal axis calibration point A at the tail end of the attack helicopter belly, so that the marking arrow 10 on the laser body 2 points to the nose direction, turn on the switch button 11 on the laser body 2, align the laser beam spot of the vertical laser emitter 3 with the center point of the longitudinal axis calibration point A, and by rotating the three sets of fine adjustment handwheels 5, adjust the bubble in the first horizontal level 7 and the vertical level 8 on the laser body 2 to the middle area of the level window, and then move the laser spot of the vertical laser emitter 3 to the longitudinal axis calibration point A; Place the fixed plate 16 below the longitudinal axis calibration point B on the belly of the attack helicopter, turn on the controller 21 on the azimuth fine adjuster 17, align the laser beam spot of the straightening laser emitter 20 with the center point of the longitudinal axis calibration point B, and then adjust the bubble of the second transverse level 24 on the fixed plate 16 to the middle area of the level window through the three sets of adjustment handwheels 25 on the fixed plate 16, and then move the laser spot of the straightening laser emitter 20 to the longitudinal axis calibration point B. Rotate the fine adjustment rod 14 on the fine adjustment frame 12 to control the connecting block 13 to drive the laser body 2 to rotate in the protective cover 1. Scan the laser spot of the horizontal laser emitter 9 on the laser body 2 onto the center of the laser straightening reticle 28 on the azimuth fine adjustment device 17. The calibration is then completed. At this time, the laser straightening instrument is withdrawn. At this point, the laser spot at 50 meters is the placement position of the target plate calibration point C. By moving and adjusting, the positioning and calibration of the target plate is completed, thereby achieving the aiming and calibration of three points in a straight line by utilizing the unidirectional and linear properties of the laser. This replaces the original steel wire and plumb bob calibration method for aircraft measurement and calibration target plates.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.
Claims
1. A laser target plate calibration straightening instrument, comprising a protective cover (1) and a fixing plate (16) on the right side of the protective cover (1), characterized in that, The protective cover (1) is equipped with a laser calibrator, which includes a laser body (2), a vertical laser emitter (3), a first horizontal level (7), a vertical level (8), a horizontal laser emitter (9), and a switch button (11). The laser body (2) is movably installed on the top of the protective cover (1). The vertical laser emitter (3) is fixedly installed in the middle of the top of the laser body (2). The first horizontal level (7) is horizontally fixed on the top of the laser body (2). The vertical level (8) is vertically fixed on the top of the laser body (2). The horizontal laser emitter (9) is fixedly installed on the side wall of the laser body (2). A hole is opened on the side wall of the protective cover (1) corresponding to the horizontal laser emitter (9). The switch button (11) is fixedly installed on the top of the laser body (2). A laser straightening instrument is fixedly installed on the top of the fixed plate (16). The laser straightening instrument includes an azimuth fine adjuster (17), a straightening laser emitter (20), a controller (21), a battery compartment (22), a second transverse level (24), and a base level (27). The azimuth fine adjuster (17) is located on the top of the fixed plate (16). The straightening laser emitter (20) is fixedly installed at the middle position on the top of the azimuth fine adjuster (17). A laser straightening reticle (28) is provided on the side wall of the azimuth fine adjuster (17). The position of the battery compartment (22) is aligned with the laser emission point of the traction laser emitter (20). The battery compartment (22) is fixedly installed on the top of the azimuth adjuster (17). The controller (21) is also fixedly installed on the top of the azimuth adjuster (17). The second horizontal level (24) is located on the left side of the azimuth adjuster (17). The second horizontal level (24) is fixedly installed on the top of the fixing plate (16). The base level (27) is located on the right side of the azimuth adjuster (17). The base level (27) is also fixed on the top of the fixing plate (16).
2. The laser target plate calibration straightening alignment instrument according to claim 1, characterized in that, A fine-tuning frame (12) is fixedly installed on the side wall of the protective cover (1). A reset rod (15) is fixedly installed on the left side of the fine-tuning frame (12). A fine-tuning rod (14) is threadedly installed on the right side of the fine-tuning frame (12). A connecting block (13) is provided between the fine-tuning rod (14) and the reset rod (15). The connecting block (13) is fixedly installed on the top of the laser body (2).
3. The laser target plate calibration straightening alignment instrument according to claim 1, characterized in that, Three fixed brackets (4) are fixedly installed at equal intervals on the outer side of the protective cover (1). A fine adjustment handwheel (5) is threaded on the top of the fixed bracket (4). A support rod (6) is fixedly installed on the bottom of the fine adjustment handwheel (5). The bottom of the support rod (6) is conical.
4. The laser target plate calibration straightening alignment instrument according to claim 1, characterized in that, Three adjusting handwheels (25) are threadedly installed on the left side and the middle of the right side of the fixed plate (16). The three adjusting handwheels (25) form an isosceles triangle. An adjusting rod (26) is fixedly installed at the bottom of the adjusting handwheel (25). The bottom of the adjusting rod (26) is conical.
5. The laser target plate calibration straightening alignment instrument according to claim 1, characterized in that, A movable frame (18) is fixedly installed on the top of the fixed plate (16) corresponding to the position of the azimuth adjuster (17). The bottom of the azimuth adjuster (17) is movably installed on the movable frame (18). A rotating handle (19) is movably installed in the movable frame (18). The bottom of the azimuth adjuster (17) is threadedly connected to the rotating handle (19).
6. The laser target plate calibration straightening alignment instrument according to claim 1, characterized in that, A battery cover (23) is movably mounted on the top of the battery compartment (22).
7. The laser target plate calibration straightening alignment instrument according to claim 1, characterized in that, The top of the laser body (2) is marked with an arrow (10) corresponding to the laser emission point of the horizontal laser emitter (9).