Airplane head-up display installation error measuring tool

Abstract

The utility model relates to the field of airplane airborne avionics product calibration, and specifically discloses an airplane head-up display installation error measuring tool comprising a frame, one side and one end of the frame are respectively provided with a main measuring surface and an auxiliary measuring surface, and the bottom of the frame is connected with a base used for being connected with a head-up display installation rack. The problem that the head-up display installation error cannot be directly measured is solved, the head-up display three-dimensional angle error value can be indirectly obtained through the head-up display installation error measuring tool, the error is compensated, and therefore the aiming precision of the head-up display is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of measuring tool, specifically to a kind of aircraft flat display installation error measuring tool, belong to aircraft airborne avionics product calibration field. BACKGROUND

[0002] Flat display is important sighting equipment of aircraft, is fixed in aircraft cabin by mounting bracket, and natural manufacturing and assembly error exists in aircraft body and mounting bracket, affects the sighting accuracy of flat display.Therefore, the three-dimensional angle of flat display mounting bracket roll, pitch and heading needs to be measured, error value is obtained, and then compensation measures are taken.Flat display or mounting bracket is irregular in shape, angle cannot be directly measured using laser radar, laser tracker and visual measurement system and other instruments.Moreover, flat display is installed inside aircraft cabin, is shielded by surrounding aircraft structure and accessory, and installation error cannot be directly measured. SUMMARY

[0003] In view of the problems in the prior art, the utility model provides a kind of aircraft flat display installation error measuring tool.

[0004] The purpose of the utility model can be realized by the following technical solutions:

[0005] A kind of aircraft flat display installation error measuring tool, including frame, the one side and one end of the frame are provided with main measurement surface and auxiliary measurement surface respectively, the bottom of frame is connected with the base for being connected with flat display mounting bracket.

[0006] Optionally, the two sides of the end of the base away from auxiliary measurement surface are all installed with front guide inlay block, the two sides of the end of the base close to auxiliary measurement surface are all installed with rear positioning inlay block, and front guide inlay block and rear positioning inlay block are all used for the connection of base and flat display mounting bracket.

[0007] Optionally, the two sides of the base are all connected with the mounting block for the installation of rear positioning inlay block, and the two sides of the end of the base are all provided with recess for the embedding installation of front guide inlay block.

[0008] Optionally, the one end of the mounting block and the one end of the recess are all provided with plug-in hole, and the one end of front guide inlay block and rear positioning inlay block is all connected with the plug-in rod of plug-in installation with plug-in hole.

[0009] Optionally, both the front guide insert and the rear positioning insert have positioning holes at the ends away from the plug rod. The positioning holes extend into the interior of the plug rod. The interior of the positioning hole on the rear positioning insert is divided into two parts: the first part facing the rear positioning insert is a trumpet-shaped guide hole, and the second part away from the rear positioning insert is a threaded hole with internal threads. A fixing bolt is connected to the internal threads of the threaded hole, and one end of the fixing bolt extends to the outside of the plug rod. Multiple screw holes are provided through the front guide insert and the rear positioning insert. The ends of the groove and the mounting block are also provided with multiple screw holes corresponding to the front guide insert and the rear positioning insert, respectively.

[0010] Optionally, the frame is hollow inside, and one end of the frame is formed into a handle above the front guide insert and on the side away from the main measuring surface.

[0011] Optionally, the frame is also fitted with a removable protective cover, the inner wall of which is covered with a flexible protective layer. The protective cover is fitted onto the outside of the frame to protect the main measuring surface and the auxiliary measuring surface.

[0012] Optionally, the outer walls of both the main measuring surface and the auxiliary measuring surface are provided with a reflective coating, and the main measuring surface and the auxiliary measuring surface are adjacent and perpendicular to each other.

[0013] Optionally, the corners of both the frame and the base are covered with anti-collision strips.

[0014] The beneficial effects of this utility model are:

[0015] This solves the problem that the installation error of the head-up display (HUD) cannot be directly measured. By using the HUD installation error measurement fixture, the three-dimensional angle error value of the HUD can be indirectly obtained, and the error can be compensated, thereby ensuring the aiming accuracy of the HUD. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This utility model Figure 1 A schematic diagram of its decomposed structure.

[0019] Figure 3 This utility model Figure 1 Axonometric drawing.

[0020] Figure 4 This is a schematic diagram of the internal structure of the rear positioning insert block of this utility model.

[0021] In the figure: 1, base; 2, positioning hole; 3, handle; 4, front guide inlay block; 5, rear positioning inlay block; 6, frame; 7, protective cover; 8, screw hole; 9, insertion rod; 10, insertion hole; 11, mounting block; 12, main measuring surface; 13, auxiliary measuring surface; 14, fixing bolt. DETAILED DESCRIPTION

[0022] The technical solutions of the utility model will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-4 As shown in the figure, an aircraft flat display installation error measuring tool includes a frame 6, the frame 6 is provided with a main measuring surface 12 and an auxiliary measuring surface 13 on one side and one end respectively, and the bottom of the frame 6 is connected with a base 1 for connecting with a flat display mounting rack.

[0024] Specifically, the base 1 is provided with a front guide inlay block 4 on both sides of the end away from the auxiliary measuring surface 13, and is provided with a rear positioning inlay block 5 on both sides of the end close to the auxiliary measuring surface 13, and the front guide inlay block 4 and the rear positioning inlay block 5 are used for connecting the base 1 with the flat display mounting rack.

[0025] The front guide inlay block 4 is embedded in the base and is installed at the front end of the measuring tool, one on each of the left and right sides and symmetrical to each other, and is used for positioning when the measuring tool is connected with the flat display mounting rack. When in use, the positioning pin of the flat display mounting rack is inserted into the positioning hole 2 of the front guide inlay block 4 to limit the transverse and longitudinal displacement of the front end of the measuring tool, so as to ensure the repeated installation accuracy.

[0026] The rear positioning inlay block 5 is installed at the rear end of the measuring tool and is butted with the rear fixing pin of the flat display mounting rack, the rear fixing pin is inserted into the positioning hole 2 of the rear positioning inlay block 5 to play a guiding role, improve the installation convenience of the measuring tool, and at the same time, play a positioning role at the rear end.

[0027] Specifically, the base 1 is provided with a mounting block 11 on both sides for mounting the rear positioning inlay block 5, and is provided with a groove on both sides of the end for embedding and mounting the front guide inlay block 4. The mounting block 11 provides a position for mounting the front guide inlay block 4 and the rear positioning inlay block 5, and can better adapt to the flat display mounting rack.

[0028] Specific, one end of the mounting block 11 and the recess are provided with a plug hole 10, the front guide block 4 and the rear positioning block 5 are connected with the plug hole 10 plug installation plug rod 9. Plug rod 9 is inserted into the plug hole 10 inside, convenient for the installation and disassembly of the front guide block 4 and the rear positioning block 5, and then fixed by screwing through the screw hole 8, so that the front guide block 4 and the rear positioning block 5 are fixed, and the use is not easy to fall off.

[0029] Specific, the front guide block 4 and the rear positioning block 5 away from the plug rod 9 are provided with a positioning hole 2, the positioning hole 2 extends to the inside of the plug rod 9, and the inside of the positioning hole 2 on the rear positioning block 5 is divided into two parts, the first part of the rear positioning block 5 is a horn-shaped guide hole, and the second part away from the rear positioning block 5 is a threaded hole with internal thread, and the threaded hole is connected with a fixed bolt 14, one end of the fixed bolt 14 extends to the outside of the plug rod 9, the front guide block 4 and the rear positioning block 5 are provided with a plurality of screw holes 8, and the end of the recess and the end of the mounting block 11 are also provided with a plurality of screw holes 8 corresponding to the front guide block 4 and the rear positioning block 5. The front guide block 4 and the rear positioning block 5 are detachable, and the positioning hole 2 is worn after long-term use. It can be disassembled and replaced regularly according to the needs.

[0030] The rear fixed pin is inserted into the inside of the positioning hole 2 of the rear positioning block 5, and the fixed bolt 14 is screwed, one end of the fixed bolt 14 enters the inside of one end of the rear fixed pin and is threadedly connected with the rear fixed pin, so that the measuring tool and the flat display mounting frame are more stable.

[0031] Specific, the inside of the frame 6 is hollow, and the frame 6 is provided with a handle 3 above the front guide block 4 and away from the main measuring surface 12. The frame 6 adopts a six-face hollow structure, thereby reducing the weight of the measuring tool and facilitating the disassembly of the measuring tool during use. The frame 6 is made of hard aluminum alloy material which is not easy to deform, and is used to support and connect the structure parts of the measuring tool. The handle is located on both sides of the measuring tool, which is used to move the measuring tool during installation and disassembly.

[0032] Specific, the outside of the frame 6 is also provided with a detachable protective cover 7, the inner wall of the protective cover 7 is covered with a flexible protective layer, and the protective cover 7 is sleeved on the outside of the frame 6 to protect the main measuring surface 12 and the auxiliary measuring surface 13. The flexible protective layer is rubber pad or sponge pad, which can avoid the wear of the inner wall of the protective cover 7 on the main measuring surface 12 and the auxiliary measuring surface 13. When the measuring tool is not used, the protective cover 7 is sleeved on the outside of the frame 6 for protection, and when the measuring tool is used, the protective cover 7 is taken out for disassembly, so as to prevent the main measuring surface 12 and the auxiliary measuring surface 13 from being damaged during long-term use and affecting the measuring precision.

[0033] Specifically, the outer walls of the main measuring surface 12 and the auxiliary measuring surface 13 are provided with a light-reflecting coating, and the main measuring surface 12 and the auxiliary measuring surface 13 are adjacent and perpendicular to each other. The frame 6 is made of aluminum material, and the surface is subjected to anodic oxidation treatment. After the treatment, the frame 6 is silver and white in color, forming a light-reflecting coating. The light-reflecting coating is subjected to polishing treatment, so that the laser reflection effect is good, facilitating the measurement of the main measuring surface 12 and the auxiliary measuring surface 13 by the laser radar, and ensuring long-term durability.

[0034] Specifically, the corners of the frame 6 and the base 1 are covered with anti-collision strips. This prevents the aircraft windshield from being damaged when the measuring tool is moved.

[0035] In use, when installing, the base 1 is placed on the top of the flat display mounting rack. The base 1 is flat and has been polished to ensure parallelism. The rear fixing pin of the flat display mounting rack is inserted into the positioning hole 2 of the rear positioning inlay block 5, and the positioning pin of the flat display mounting rack is inserted into the positioning hole 2 of the front guide inlay block 4, so that the measuring tool can be conveniently and quickly installed on the top of the flat display mounting rack. The horizontal roll, pitch and heading three-dimensional angles of the main measuring surface 12 and the auxiliary measuring surface 13 are consistent with the flat display mounting rack. By indirectly measuring the three-dimensional angle of the tool, the installation error of the flat display can be obtained by comparing with the preset data.

[0036] The protective cover 7 is removed, and the main measuring surface 12 and the auxiliary measuring surface 13 are exposed. The laser radar is normally placed on the left side of the aircraft, facilitating the measurement of the main measuring surface 12 by the laser radar. After calibration and installation, the main measuring surface 12 forms a fixed three-dimensional angle with the flat display mounting rack. The auxiliary measuring surface 13 is perpendicular to the flat display optical level and parallel to the aircraft heading, serving as the vertical and heading measuring surface of the laser radar. By measuring the main measuring surface 12 and the auxiliary measuring surface 13, the three-dimensional angle of the measuring tool is obtained.

[0037] The measuring tool is installed on the flat display mounting rack, and the three-dimensional angle of the measuring tool is the same as that of the flat display mounting rack. The three-dimensional angle of the flat display mounting rack is extended to the measurable area, and high-precision measuring equipment such as laser radar is used to measure multiple points on the measuring tool. The three-dimensional angle of the auxiliary measuring tool is fitted by point coordinates, and the three-dimensional angle of the flat display mounting rack is obtained. By comparing with the theoretical angle, the installation error is calculated, and the error value is bound to the aircraft avionics system to compensate for the error and improve the aiming accuracy of the flat display.

[0038] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. An aircraft flat-panel installation error measurement tool comprising a frame (6), characterized in that, One side and one end of the frame (6) are respectively provided with a main measuring surface (12) and an auxiliary measuring surface (13), and the bottom of the frame (6) is connected with a base (1) for connecting with a flat display mounting rack.

2. The installation error measuring tool for a flat panel display of an aircraft according to claim 1, wherein The base (1) is provided with a front guide inlay block (4) on both sides of the end away from the auxiliary measuring surface (13), and the base (1) is provided with a rear positioning inlay block (5) on both sides of the end close to the auxiliary measuring surface (13), and the front guide inlay block (4) and the rear positioning inlay block (5) are used for connecting the base (1) with the flat display mounting rack.

3. An aircraft flatness installation error measurement tooling according to claim 2, wherein, Both sides of the base (1) are connected with mounting blocks (11) for mounting the rear positioning inlay block (5), and both sides of the end of the base (1) are provided with grooves for embedding and mounting the front guide inlay block (4).

4. The installation error measuring tool for a flat panel display of claim 3, wherein, One end of the mounting block (11) and one end of the groove are provided with plug-in holes (10), and one end of the front guide inlay block (4) and the rear positioning inlay block (5) is connected with a plug-in rod (9) plugged into the plug-in hole (10).

5. An aircraft flatness installation error measurement tooling fixture according to claim 4, wherein, The front guide inlay block (4) and the rear positioning inlay block (5) are provided with positioning holes (2) at the end away from the plug-in rod (9), the positioning holes (2) extend into the plug-in rod (9), the inner part of the positioning hole (2) on the rear positioning inlay block (5) is divided into two parts, the first part is a horn-shaped guide hole towards the rear positioning inlay block (5), and the second part is a threaded hole with internal threads away from the rear positioning inlay block (5), and a fixing bolt (14) is screwed into the threaded hole, one end of the fixing bolt (14) extends to the outside of the plug-in rod (9), a plurality of screw holes (8) are provided through the front guide inlay block (4) and the rear positioning inlay block (5), and the end of the groove and the end of the mounting block (11) are also provided with a plurality of screw holes (8) corresponding to the front guide inlay block (4) and the rear positioning inlay block (5).

6. The installation error measuring tool for a flat panel display of claim 2, wherein, The inside of the frame (6) is hollow, and the frame (6) is provided with a handle (3) through the end above the front guide inlay block (4) and away from the main measuring surface (12).

7. The installation error measuring tool for a flat panel display of an aircraft according to claim 1, wherein The outer part of the frame (6) is further provided with a detachable protective cover (7), the inner wall of the protective cover (7) is covered with a flexible protective layer, and the protective cover (7) is sleeved on the outer part of the frame (6) to protect the main measuring surface (12) and the auxiliary measuring surface (13).

8. The installation error measurement tool of claim 1, wherein, The outer walls of the main measuring surface (12) and the auxiliary measuring surface (13) are provided with a reflective coating, and the main measuring surface (12) and the auxiliary measuring surface (13) are adjacent and perpendicular to each other.

9. The installation error measuring tool for a flat panel display of an aircraft according to claim 1, wherein The corners of the frame (6) and the base (1) are covered with anti-collision strips.

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