Airplane skin flatness detection device

Abstract

An aircraft skin flatness detection device belongs to the field of aircraft skin detection devices and comprises a support plate, a moving unit and a detection device, the moving unit is fixed at the upper end of the support plate, and the detection device is fixed at the upper end of the support plate. The problems that in the background technology, the flatness of the skin needs to be detected in order to guarantee the precision requirement when an airplane is built, the existing flatness detection cost is high through laser scanning detection, and laser scanning detection can only detect whether the skin is flat or not, cannot mark uneven protrusions, and cannot detect whether the skin is flat or not can be solved. And during subsequent skin flatness machining, workers need to find out uneven places again through naked eyes for grinding.

Description

An aircraft skin flatness testing device Technical Field

[0001] This utility model belongs to the field of aircraft skin inspection devices, and in particular, an aircraft skin flatness inspection device. Background Technology

[0002] Aircraft skin refers to the shaped components that surround the aircraft's frame structure and are fixed to the frame with adhesives or rivets, forming the aircraft's aerodynamic shape. During aircraft construction, the flatness of the skin needs to be inspected to ensure accuracy. Current flatness inspection methods using laser scanning are costly, and laser scanning can only detect whether the skin is flat; it cannot mark uneven areas or protrusions. Therefore, during subsequent skin flatness processing, workers must visually locate and smooth out any uneven areas. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems existing in the prior art and to provide an aircraft skin flatness detection device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An aircraft skin flatness testing device includes: a support plate, a moving unit, and a testing device. The moving unit is fixed to the upper end of the support plate, and the testing device is fixed to the upper end of the support plate.

[0006] The moving unit includes: a transport roller assembly, a chain and a drive motor. The transport roller assembly is fixed on the support plate. Multiple transport roller assemblies are configured and connected to each other by chain drive. One of the transport roller assemblies is connected to the drive motor.

[0007] Each of the multiple transport roller assemblies includes: a bracket, a transport roller, a suction cup, and a gear. The bracket is fixed on the support plate. The transport roller is rotatably connected to the bracket via a rotating shaft. One end of the transport roller's rotating shaft rotatably passes through the bracket and is fixed with a gear. The gear is connected to a chain drive. The output shaft of the drive motor is fixedly connected to the rotating shaft of one of the transport rollers. Multiple suction cups are provided on the surface of the transport roller.

[0008] The detection device includes: guide posts, screws, lifting plates, detection roller assemblies, and brushes. Guide posts are fixed to a support plate, and screws are rotatably connected to the support plate via bearings. Two guide posts and two screws are arranged in a rectangular array. The lifting plate is slidably connected to the guide posts and screws are screwed into place. Two detection roller assemblies are arranged, one fixedly connected to the bottom surface of the lifting plate and the other fixedly connected to the support plate. The two detection roller assemblies are symmetrically arranged, and brushes are fixed to both assemblies. The detection device is positioned between multiple transport roller assemblies.

[0009] Both detection roller assemblies include: a second bracket, a detection roller cavity, through holes, and sponge. The second brackets of the two detection roller assemblies are respectively fixedly connected to the bottom surface of the lifting plate and the top surface of the support plate. The brush is fixedly connected to the second bracket, and the length of the brush matches the detection roller. The detection roller is rotatably connected to the second bracket. The detection roller has a cavity inside, and multiple through holes communicating with the cavity are provided on the surface of the detection roller. Sponge is adhered to the surface of the detection roller. A material injection port with a valve is provided on one side of the detection roller, and the material injection port communicates with the cavity.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model provides an aircraft skin flatness inspection device, which can solve the problems mentioned in the background art: during the construction of aircraft, the flatness of the skin needs to be inspected to ensure accuracy requirements. However, the existing flatness inspection using laser scanning is costly, and laser scanning can only detect whether the skin is flat, but cannot mark uneven protrusions. Therefore, in subsequent skin flatness processing, workers need to visually locate and grind the uneven areas again. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 is a schematic diagram of the detection roller assembly structure;

[0014] Figure 3 is a front view of the inspection roller assembly. Detailed Implementation

[0015] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0016] An aircraft skin flatness detection device includes: a support plate 1, a moving unit 2, and a detection device 3. The moving unit 2 is fixed to the upper end of the support plate 1, and the detection device 3 is fixed to the upper end of the support plate 1.

[0017] The moving unit 2 includes: a transport roller assembly 2-1, a chain 2-2 and a drive motor 2-3. The transport roller assembly 2-1 is fixed on the support plate 1. There are multiple transport roller assemblies 2-1. The multiple transport roller assemblies 2-1 are connected to each other by the chain 2-2. One of the transport roller assemblies 2-1 is connected to the drive motor 2-3.

[0018] Each of the multiple transport roller assemblies 2-1 includes: a bracket 2-1-1, a transport roller 2-1-2, a suction cup 2-1-3, and a gear 2-1-4. The bracket 2-1-1 is fixed on the support plate 1. The transport roller 2-1-2 is rotatably connected to the bracket 2-1-1 via a rotating shaft. One end of the transport roller 2-1-2 has a rotating shaft that rotatably passes through the bracket 2-1-1 and is fixed with a gear 2-1-4. The gear 2-1-4 is connected to the chain 2-2 for transmission. The output shaft of the drive motor 2-3 is fixedly connected to the rotating shaft of one of the transport rollers 2-1-2. Multiple suction cups 2-1-3 are provided on the surface of the transport roller 2-1-2.

[0019] The detection device 3 includes: guide posts 3-1, screws 3-2, lifting plates 3-3, detection roller assemblies 3-4, and brushes 3-5. Guide posts 3-1 are fixed on the support plate 1, and screws 3-2 are rotatably connected to the support plate 1 via bearings. Two guide posts 3-1 and two screws 3-2 are arranged in a rectangular array. The lifting plate 3-3 is slidably connected to the guide posts 3-1 and screws 3-2 are screwed together. Two detection roller assemblies 3-4 are arranged, one of which is fixedly connected to the bottom surface of the lifting plate 3-3, and the other is fixedly connected to the support plate 1. The two detection roller assemblies 3-4 are symmetrically arranged, and brushes 3-5 are fixedly mounted on each of the two detection roller assemblies 3-4. The detection device 3 is positioned between multiple transport roller assemblies 2-1.

[0020] Each of the two detection roller assemblies 3-4 includes: a second bracket 3-4-1, a cavity 3-4-3 for the detection roller 3-4-2, a through hole 3-4-4, and a sponge 3-4-5. The second bracket 3-4-1 of the two detection roller assemblies 3-4 is fixedly connected to the bottom surface of the lifting plate 3-3 and the top surface of the support plate 1, respectively. The brush 3-5 is fixedly connected to the second bracket 3-4-1, and the length of the brush 3-5 matches that of the detection roller 3-4-2. A detection roller 3-4-2 is rotatably connected to the bracket 3-4-1. The detection roller 3-4-2 has a cavity 3-4-3 inside. The surface of the detection roller 3-4-2 has multiple through holes 3-4-4 communicating with the cavity 3-4-3. A sponge 3-4-5 is adhered to the surface of the detection roller 3-4-2. One side of the detection roller 3-4-2 has a material injection port with a valve, which communicates with the cavity 3-4-3.

[0021] The working principle of this utility model is as follows:

[0022] This device is connected to an external power source. During aircraft skin processing, the skin needs to be inspected for flatness before being bent according to the aircraft's curvature. In use, red ink is injected into cavity 3-4-3 through the injection port, then flows out through through-hole 3-4-4, and is absorbed by sponge 3-4-5, saturating the sponge. The skin is then placed on transport roller 2-1-2, and its weight presses against suction cup 2-1-3, causing the suction cup to adhere to the skin surface. The drive motor 2-3 is then energized, rotating transport roller 2-1-2. Simultaneously, gear 2-1-4 and chain 2-2 drive the other transport rollers 2-1-2 to rotate. The rotation of transport roller 2-1-2 rotates suction cup 2-1-3, causing the skin to move to the right. The movement of the skin is aided by brush 3-5, which removes dust and impurities from both sides of the skin surface, preventing the mixture of dust and impurities with the ink and thus preventing ink adhesion. If the skin is not secure, it will move through the detection rollers 3-4-2 set in the two detection roller assemblies 3-4. As the skin continues to move, when there are unevenness and protrusions on both sides of the skin, the protrusions will press against the sponge 3-4-5. The ink soaked in the sponge will adhere to the protrusions of the skin. At the same time, the detection rollers 3-4-2 will rotate due to the limiting effect of the protrusions, which can reduce the friction when the skin moves. The flat parts of the skin will not come into contact with the sponge 3-4-5. When the skin has completely passed through the detection rollers 3-4-2, the uneven and protruding parts of the skin can be identified by observing the red ink on the skin. The flatness of the skin can then be quickly adjusted and polished. The above method can reduce the cost of skin flatness detection and quickly identify uneven parts of the skin. Rotating the screw 3-2, through the limiting effect of the guide post 3-1, drives the lifting plate 3-3 to move up and down, thereby adjusting the distance between the two detection rollers 3-4-2, which can be adjusted according to the thickness of the skin. When adjusting the distance between the two detection rollers 3-4-2, the height of the transport roller 2-1-2 also needs to be adjusted to ensure that the skin position is between the two detection rollers 3-4-2.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for detecting the flatness of aircraft skin, characterized in that: include: The support plate (1), the moving unit (2) and the detection device (3) are provided. The moving unit (2) is fixed on the upper end of the support plate (1) and the detection device (3) is fixed on the upper end of the support plate (1).

2. The aircraft skin flatness detection device according to claim 1, characterized in that: The moving unit (2) includes: a transport roller assembly (2-1), a chain (2-2) and a drive motor (2-3). The transport roller assembly (2-1) is fixed on the support plate (1). There are multiple transport roller assemblies (2-1). The multiple transport roller assemblies (2-1) are connected to each other by the chain (2-2). One of the transport roller assemblies (2-1) is connected to the drive motor (2-3).

3. The aircraft skin flatness detection device according to claim 2, characterized in that: Each of the multiple transport roller assemblies (2-1) includes: a bracket (2-1-1), a transport roller (2-1-2), a suction cup (2-1-3), and a gear (2-1-4). The bracket (2-1-1) is fixed on the support plate (1). The transport roller (2-1-2) is rotatably connected to the bracket (2-1-1) via a rotating shaft. One end of the transport roller (2-1-2) rotates through the bracket (2-1-1) and is fixed with a gear (2-1-4). The gear (2-1-4) is connected to the chain (2-2) for transmission. The output shaft of the drive motor (2-3) is fixedly connected to the rotating shaft of one of the transport rollers (2-1-2). Multiple suction cups (2-1-3) are provided on the surface of the transport roller (2-1-2).

4. The aircraft skin flatness detection device according to claim 3, characterized in that: The detection device (3) includes: a guide post (3-1), a screw (3-2), a lifting plate (3-3), a detection roller assembly (3-4), and a brush (3-5). The guide post (3-1) is fixed on the support plate (1), and the screw (3-2) is rotatably connected to the support plate (1) via a bearing. Two guide posts (3-1) and two screws (3-2) are each provided, arranged in a rectangular array. The lifting plate (3-3) is slidably connected to the guide post (3-1). The lifting plate (3-3) is screwed into the screw (3-2). There are two detection roller assemblies (3-4). One detection roller assembly (3-4) is fixedly connected to the bottom surface of the lifting plate (3-3), and the other detection roller assembly (3-4) is fixedly connected to the support plate (1). The two detection roller assemblies (3-4) are symmetrically arranged. A brush (3-5) is fixed on each of the two detection roller assemblies (3-4). The detection device (3) is arranged between the multiple transport roller assemblies (2-1).

5. The aircraft skin flatness detection device according to claim 4, characterized in that: Each of the two detection roller assemblies (3-4) includes: a second bracket (3-4-1), a cavity (3-4-3) for the detection roller (3-4-2), a through hole (3-4-4), and a sponge (3-4-5). The second bracket (3-4-1) of each of the two detection roller assemblies (3-4) is fixedly connected to the bottom surface of the lifting plate (3-3) and the top surface of the support plate (1), respectively. The brush (3-5) is fixedly connected to the second bracket (3-4-1), and the length of the brush (3-5) is the same as that of the detection roller (3-4-2). Matching the bracket (3-4-1), a detection roller (3-4-2) is rotatably connected to it. The detection roller (3-4-2) has a cavity (3-4-3) inside. The surface of the detection roller (3-4-2) has multiple through holes (3-4-4) communicating with the cavity (3-4-3). A sponge (3-4-5) is adhered to the surface of the detection roller (3-4-2). A material injection port with a valve is provided on one side of the detection roller (3-4-2), and the material injection port communicates with the cavity (3-4-3).

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