Unmanned helicopter horizontal measuring device based on laser marking instrument

Abstract

The utility model provides an unmanned helicopter horizontal measuring device based on a laser marking instrument. The unmanned helicopter horizontal measuring device comprises a platform fixing clamp (1), a vertical flat plate (2), a horizontal flat plate (3) and the laser marking instrument (4), the platform fixing clamp (1) comprises two supporting legs and a top plate, the bottoms of the two supporting legs are arranged on the reference plane of the unmanned helicopter, and the top plate is arranged on the tops of the two supporting legs and is parallel to the reference plane of the unmanned helicopter; the vertical flat plate (2) is fixedly connected with one supporting leg in parallel; the horizontal flat plate (3) is fixedly connected with a top plate in parallel; the laser marking instrument (4) is arranged at the tail part of the unmanned helicopter and is used for emitting a first fan-shaped laser based on a ground vertical plane and a second fan-shaped laser based on a ground horizontal plane, and the scanning plane where the first fan-shaped laser is located and the plane where the vertical flat plate (2) is located are the same plane; the strafing plane where the second fan-shaped laser is located and the plane where the horizontal flat plate (3) is located are the same plane, and the first fan-shaped laser and the second fan-shaped laser are used for measuring the relative position accuracy of all parts on the unmanned helicopter.

Description

Technical Field

[0001] The utility model belongs to the mechanical installation technology, and particularly relates to an unmanned helicopter level measuring device based on a laser marking instrument. Background Art

[0002] Helicopter horizontal measurement refers to the measurement of the relative position accuracy of the helicopter components when the helicopter is in a horizontal state. The measurement is used to detect the helicopter's shape and the relative position of its components, the installation quality, and the deformation during subsequent use.

[0003] At present, the more commonly used methods are the traditional measurement method using a plumb line for direct measurement, but there are problems such as the number of staff generally being no less than 4, heavy workload, and low efficiency. There is also a new measurement method based on laser tracker measurement in the prior art, but there are problems such as expensive equipment, complicated operation, and not suitable for complex field environments. Utility Model Content

[0004] The utility model provides a level measuring device for unmanned helicopters based on a laser marking instrument. Positioning tooling is designed on the fuselage, and a laser marking instrument capable of scanning a plane laser device is used to determine the aircraft reference plane, so as to further measure the aircraft shape and the relative positions between various components.

[0005] The utility model provides an unmanned helicopter level measurement device based on a laser marking instrument, comprising: a platform fixing fixture 1, a vertical plate 2, a horizontal plate 3 and a laser marking instrument 4;

[0006] The platform fixing fixture 1 includes two legs and a top plate, the bottoms of the two legs are arranged on the reference plane of the unmanned helicopter, and the top plate is arranged on the tops of the two legs, and the top plate is parallel to the reference plane of the unmanned helicopter;

[0007] The vertical plate 2 is fixedly connected in parallel with one leg, and the horizontal plate 3 is fixedly connected in parallel with the top plate;

[0008] The laser marking instrument 4 is arranged at the tail of the unmanned helicopter, and is used to emit a first fan-shaped laser based on the vertical plane of the ground, and the scanning plane where the first fan-shaped laser is located is the same plane as the plane where the vertical plate 2 is located, and a second fan-shaped laser based on the horizontal plane of the ground, and the scanning plane where the second fan-shaped laser is located is the same plane as the plane where the horizontal plate 3 is located. The first fan-shaped laser and the second fan-shaped laser are used to measure the relative position accuracy of various components on the unmanned helicopter.

[0009] Optionally, the unmanned helicopter level measurement device based on the laser marking instrument also includes: a tilting plate;

[0010] The inclined flat plate is fixedly connected to the platform fixing fixture 1 according to a preset inclination angle;

[0011] The laser alignment instrument 4 is also used to emit a third fan-shaped laser according to a preset tilt angle. The scanning plane where the third fan-shaped laser is located is the same plane as the plane where the tilt plate is located. The third fan-shaped laser is used to measure the relative position accuracy of each component on the unmanned helicopter.

[0012] Optionally, the interface structures at the bottoms of the two legs are matched with the interface structures on the reference plane of the unmanned helicopter.

[0013] Optionally, the platform fixing fixture 1 is integrally formed.

[0014] Optionally, the vertical plate 2 and the horizontal plate 3 are rectangular, with a length of 40 cm and a width of 5 cm.

[0015] Optionally, the reference plane of the unmanned helicopter is the engine mount installation surface and the main reduction platform installation surface.

[0016] The utility model provides a horizontal measurement device for an unmanned helicopter based on a laser alignment instrument. According to the characteristics of different unmanned helicopters, a positioning tooling is designed at the reference point position of the helicopter, and the reference plane is determined by cooperating with the scanning plane laser of the laser alignment instrument to further perform horizontal measurement. It takes into account both measurement efficiency and measurement accuracy, can be used in the wild and complex environments, and meets the emergency measurement requirements of various environments. Description of the Drawings

[0017] Figure 1 is the installation schematic diagram of the horizontal measurement device for an unmanned helicopter based on a laser alignment instrument provided by this application;

[0018] Figure 2 is the structural schematic diagram of the horizontal measurement device for an unmanned helicopter based on a laser alignment instrument provided by this application;

[0019] Description of the Reference Numerals:

[0020] 1 - Platform fixing fixture;

[0021] 2 - Vertical plate;

[0022] 3 - Horizontal plate;

[0023] 4 - Laser alignment instrument. Detailed Embodiment

[0024] The following explains the horizontal measurement device for an unmanned helicopter based on a laser alignment instrument provided by the utility model with reference to the drawings.

[0025] As Figure 1-2 shown, the utility model provides a horizontal measurement device for an unmanned helicopter based on a laser alignment instrument, including: a platform fixing fixture 1, a vertical plate 2, a horizontal plate 3, and a laser alignment instrument 4;

[0026] The platform fixing fixture 1 includes two legs and a top plate. The bottoms of the two legs are set on the reference plane of the unmanned helicopter, the top plate is arranged on the tops of the two legs, and the top plate is parallel to the reference plane of the unmanned helicopter.

[0027] The vertical flat plate 2 is fixedly connected in parallel with one leg, and the horizontal flat plate 3 is fixedly connected in parallel with the top plate.

[0028] The laser alignment instrument 4 is arranged at the tail of the unmanned helicopter and is used to emit a first fan-shaped laser based on the ground vertical plane. The scanning plane where the first fan-shaped laser is located is the same plane as the plane where the vertical flat plate 2 is located, and a second fan-shaped laser based on the ground horizontal plane. The scanning plane where the second fan-shaped laser is located is the same plane as the plane where the horizontal flat plate 3 is located. The first fan-shaped laser and the second fan-shaped laser are used for measuring the relative position accuracy of each component on the unmanned helicopter.

[0029] Optionally, the unmanned helicopter horizontal measuring device based on the laser alignment instrument further includes: an inclined flat plate;

[0030] The inclined flat plate is fixedly connected to the platform fixing fixture 1 at a preset inclination angle;

[0031] The laser alignment instrument 4 is further used to emit a third fan-shaped laser at a preset inclination angle. The scanning plane where the third fan-shaped laser is located is the same plane as the plane where the inclined flat plate is located. The third fan-shaped laser is used for measuring the relative position accuracy of each component on the unmanned helicopter.

[0032] Optionally, the interface structures at the bottoms of the two legs match the interface structures on the reference plane of the unmanned helicopter.

[0033] Optionally, the platform fixing fixture 1 is integrally formed.

[0034] Optionally, the vertical flat plate 2 and the horizontal flat plate 3 are rectangular, with a length of 40 cm and a width of 5 cm.

[0035] Optionally, the reference plane of the unmanned helicopter is the engine mount installation surface and the main reduction platform installation surface.

[0036] Exemplarily, the present invention provides a new type of horizontal measuring device. By designing a positioning tooling on the fuselage and matching a laser alignment instrument capable of scanning a plane laser device, the aircraft reference plane is determined, and further, the aircraft shape and the relative positions between various components are measured.

[0037] In the present invention, the horizontal measurement of the unmanned helicopter refers to the measurement of the relative position accuracy of each component of the helicopter when the helicopter is in a horizontal state. By measurement, the aircraft shape, the relative positions between various components, the installation quality, and the deformation conditions during subsequent use are detected. The present invention mainly relies on the cooperation of a plane positioning tooling and a laser alignment instrument to complete the horizontal measurement (Figure 1 )。

[0038] A laser alignment instrument is a device that can emit parallel and vertical plane lasers based on its own horizontal plane. The plane positioning tooling is composed of two flat plates that are parallel to the reference horizontal plane and vertical plane of the unmanned helicopter respectively, and a fixture platform fixed to the aircraft reference plane. The two flat plates are screwed and fixed to the fixed fixture platform( Figure 2 ), and the flat plates after fixed installation are parallel to the reference horizontal plane and vertical plane of the unmanned helicopter respectively. The fixed fixture platform does not have a fixed shape, and different shapes can be designed according to the structural characteristics of different helicopter reference point positions. Its main purpose is to transfer the reference plane of the unmanned helicopter to the two flat plates.

[0039] This measurement method mainly consists of three steps: aircraft leveling, positioning the reference plane, and measurement.

[0040] Aircraft leveling: First, the unmanned helicopter needs to be jacked up, then the fixed fixture platform is fixed to the reference plane of the unmanned helicopter, and the level is placed on the plane of the fixed fixture platform. The unmanned helicopter is jacked up to ensure that the level is horizontal both horizontally and vertically on the unmanned helicopter.

[0041] Positioning the reference plane: The two flat plates are screwed to the fixed fixture platform with screws, and the laser alignment instrument is placed behind the unmanned helicopter( Figure 1 ). The height of the laser alignment instrument bracket is adjusted to ensure its parallelism with the ground. The laser alignment instrument is turned on to emit a fan-shaped laser based on the vertical plane of the ground. The position of the laser alignment instrument is adjusted so that the laser forms a scanning plane on the flat plate 2. After the position of the laser alignment instrument is fixed, its scanning plane passes through the unmanned helicopter and converges with the flat plate 2. This scanning plane is the vertical reference plane of the unmanned helicopter based on the ground. Similarly, the parallel reference plane of the unmanned helicopter based on the ground can be determined according to the flat plate 1.

[0042] Measurement: By determining the reference plane, the relative positions of the various components of the unmanned helicopter can be further measured.

[0043] Key points of the present utility model: 1) The measurement method is simple, intuitive, and efficient, consuming less manpower. Only 2 people are required to complete the horizontal measurement of the entire aircraft; 2) The measurement can be carried out on any flat ground without a relatively strict indoor environment; 3) The positioning tooling has a simple structure, is convenient to carry, and has multiple uses. It can not only be used to position the reference plane but also can be used for rapid aircraft leveling; 4) The measurement instrument, the laser alignment instrument, is inexpensive and can be purchased in batches compared to the laser tracker which costs hundreds of thousands of yuan; 5) This method has stronger robustness compared to the traditional direct measurement method using a plumb line and can adapt to different complex environments with higher detection efficiency. Compared with the new measurement method based on the laser tracker, the measurement method is simple and intuitive, and the measurement tool is inexpensive, and can be purchased and used randomly in large quantities later.

Claims

1. An unmanned helicopter horizontal measurement device based on a laser level, characterized in that, Comprising: Platform fixing fixture (1), vertical flat plate (2), horizontal flat plate (3) and laser alignment instrument (4); The platform fixing fixture (1) includes two legs and a top plate. The bottoms of the two legs are arranged on the reference plane of the unmanned helicopter, and the top plate is arranged on the tops of the two legs. The top plate is parallel to the reference plane of the unmanned helicopter; The vertical flat plate (2) is fixedly connected in parallel with one leg, and the horizontal flat plate (3) is fixedly connected in parallel with the top plate; The laser alignment instrument (4) is arranged at the tail of the unmanned helicopter and is used to emit a first sector laser based on the ground vertical plane. The scanning plane where the first sector laser is located is the same plane as the plane where the vertical flat plate (2) is located, and a second sector laser based on the ground horizontal plane. The scanning plane where the second sector laser is located is the same plane as the plane where the horizontal flat plate (3) is located. The first sector laser and the second sector laser are used for measuring the relative position accuracy of each component on the unmanned helicopter.

2. The horizontal measurement device for an unmanned helicopter based on a laser level according to claim 1, wherein, It further comprises: Inclined flat plate; The inclined flat plate is fixedly connected to the platform fixing fixture (1) at a preset inclination angle; The laser alignment instrument (4) is further used to emit a third sector laser at a preset inclination angle. The scanning plane where the third sector laser is located is the same plane as the plane where the inclined flat plate is located. The third sector laser is used for measuring the relative position accuracy of each component on the unmanned helicopter.

3. The horizontal measurement device for an unmanned helicopter based on a laser level according to claim 1, characterized in that, The interface structures at the bottoms of the two legs match the interface structures on the reference plane of the unmanned helicopter.

4. The horizontal measurement device for an unmanned helicopter based on a laser level according to claim 1, wherein, The platform fixing fixture (1) is integrally formed.

5. The unmanned helicopter horizontal measurement device based on a laser level according to claim 1, characterized in that, The vertical flat plate (2) and the horizontal flat plate (3) are rectangular, with a length of 40 cm and a width of 5 cm.

6. The horizontal measurement device for an unmanned helicopter based on a laser level according to claim 1, wherein The reference plane of the unmanned helicopter is the engine pylon mounting surface and the main reduction platform mounting surface.

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