Airplane skin thickness measuring device

Abstract

The utility model relates to an aircraft skin thickness measuring device which comprises a moving part, a connecting part and a measuring part. The measuring part is connected to the moving part through the connecting part, a core control panel and a laser displacement sensor are arranged on the measuring part, and the core control panel is connected with the laser displacement sensor; according to the utility model, the thickness of the aircraft skin can be rapidly and accurately measured, the detection precision is improved, the labor intensity is reduced, and the detection efficiency is also improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to measurement technical field especially relates to a kind of aircraft skin thickness measuring device. BACKGROUND

[0002] Aircraft skin is the important component of aircraft, and ensures the safety of flight. In the factors to be noted in aircraft skin production and processing, thickness is an important factor. Proper skin thickness can ensure that the aircraft structure has sufficient strength and stiffness to withstand various loads in flight, such as aerodynamic pressure, inertial force and operating load, etc. Therefore, selecting the correct skin material and its thickness in designing aircraft skin is a complex and delicate work, which needs to consider various factors to achieve the best design effect.

[0003] In the field of aviation manufacturing, the production and manufacturing link of aircraft skin has generally adopted numerical control machine tool to realize automatic processing, but its quality detection system is still dominated by traditional manual detection method. The current manual detection process needs professional operators to hold ultrasonic thickness gauge and measure on the skin surface for a long time. This method has limitations: first, the manual point-by-point detection mode leads to low detection efficiency, and single-piece detection takes several hours; second, the professional skill requirement of operators is strict, and long-term professional training is required; third, detection data still relies on manual recording and sorting, and it is difficult to realize real-time acquisition and digital processing; finally, long-time operation of operators on the skin surface may cause contact damage, and there is a potential risk of damaging the surface integrity of the material. UTILITY MODEL CONTENT

[0004] The utility model aims at the deficiency of prior art and provides an aircraft skin thickness measuring device.

[0005] The utility model is realized by the following technical solutions:

[0006] An aircraft skin thickness measuring device, comprising a moving part, a connecting part and a measuring part;

[0007] The measuring part is connected to the moving part by the connecting part, and a core control board and a laser displacement sensor are arranged on the measuring part, and the core control board is connected with the laser displacement sensor.

[0008] Further, a main control MCU module and a wireless data transmission module are arranged on the core control board.

[0009] Further, a battery charging module, a DC-DC voltage boosting and reducing module and a signal conversion module are further arranged on the core control board.

[0010] Further, the measuring component is further provided with a battery and a battery switch, the battery supplies power for the laser displacement sensor and the core control board, and the battery is connected with the battery switch.

[0011] Further, the measuring device comprises a shell, the shell is provided with a first accommodating cavity, a second accommodating cavity and a third accommodating cavity, the core control board is arranged in the first accommodating cavity, the laser displacement sensor is arranged in the second accommodating cavity, and the battery and the battery switch are arranged in the third accommodating cavity.

[0012] Further, the moving component is a numerical control machining tool.

[0013] Further, the connecting component comprises a connecting seat, the connecting seat is provided with a plug-in slot, and the plug-in slot is connected with a main shaft of the numerical control machining tool.

[0014] Further, the connecting component further comprises a charging seat, and the charging seat is provided with an external charging interface.

[0015] Further, the charging seat is provided with two charging seats arranged on the two sides of the connecting seat.

[0016] A wallboard part measuring device comprises the aircraft skin thickness measuring device of any one of the above.

[0017] Compared with the prior art, the aircraft skin thickness measuring device has the following beneficial technical effects:

[0018] 1. Non-contact measurement: the device does not directly contact the measured object, can quickly and accurately measure complex shapes and dynamic objects, and avoids physical damage to the measured object.

[0019] 2. High-precision measurement: the device uses a laser displacement sensor to accurately measure the thickness of the measured object, and the measurement precision can reach microns.

[0020] 3. Dynamic automatic measurement: the laser displacement sensor is combined with the core control plate and the wireless data transmission module, and is matched with the built-in battery and the external charging seat, so that the problem of winding power lines and signal transmission lines is avoided, and the space for using the laser displacement sensor based on non-contact dynamic automatic measurement is larger.

[0021] 4. Wide measurement application: the device can not only quickly measure the thickness of an aircraft skin, but also can be applied to the thickness measurement of other wallboard parts, and can be applied to automatic height measurement of parts, high-precision inner diameter measurement and other scenes.

[0022] 5. Simple structure: the device has a simple structure and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the connector structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the charging base structure of this utility model;

[0026] Figure 4 Schematic diagram of the measuring component of this utility model Figure 1 ;

[0027] Figure 5 Schematic diagram of the measuring component of this utility model Figure 2 .

[0028] In the diagram: 1. Moving component; 2. Connecting component; 3. Measuring component; 21. Connecting base; 211. Insertion slot; 22. Charging base; 31. First receiving cavity; 311. Core control board; 32. Second receiving cavity; 321. Laser displacement sensor; 33. Third receiving cavity; 331. Battery; 332. Battery switch; 34. Cavity. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise explicitly specified and limited, the embodiments and features described in the embodiments of this application can be combined with each other. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0030] Example 1

[0031] like Figures 1-5 As shown: An aircraft skin thickness measuring device includes a moving part 1, a connecting part 2, and a measuring part 3;

[0032] The measuring component 3 is connected to the moving component 1 by the connecting component 2. The measuring component 3 is equipped with a core control board 311 and a laser displacement sensor 321, and the core control board 311 is connected to the laser displacement sensor 321.

[0033] A main control MCU module and a wireless data transmission module are arranged on the core control board 311. Preferably, the main control MCU module is used for controlling the laser displacement sensor to set the working mode and the collection frequency; an STC8G1K08 single-chip microcomputer can be used, which is packaged in a SOP20 package and has a working frequency of 22.1184 MHz; the wireless data transmission module is used for sending the received sensor data to an upper computer; a WIFI serial module ESP8266 can be used, which integrates a complete WIFI wireless module and a Tensilica L106 single-chip microcomputer, and the module has solidified an AT instruction set, facilitating user development.

[0034] A battery charging module, a DC-DC voltage boosting and reducing module and a signal conversion module are further arranged on the core control board 311. Preferably, the battery charging module is used for protecting the charging circuit and can be a small module based on a TP4056 lithium battery charging chip, which is packaged in an ESOP8 package and has a maximum input voltage of 6V; the DC-DC voltage boosting module is used for boosting the 7.4V power supply voltage to 12V to supply power to the laser displacement sensor and can be a small module based on a chip SX1308; the DC-DC voltage reducing module is used for supplying power to the main control MCU module, the wireless data transmission module and the signal conversion module and can be a small module based on a chip MP1584; the signal conversion module is used for converting the RS422 type signal output by the laser displacement sensor into a TTL type signal for the serial port of the main control MCU to receive, and a 22-TTL signal conversion module can be used.

[0035] A battery 331 and a battery switch 332 are further arranged on the measuring component 3. The battery 331 supplies power to the laser displacement sensor and the core control board 311, and the battery 331 is connected with the battery switch 332.

[0036] The measuring device comprises a shell; the shell is provided with a first accommodating cavity 31, a second accommodating cavity 32 and a third accommodating cavity 33; the first accommodating cavity 31 is provided with a core control board 311, the second accommodating cavity 32 is provided with a laser displacement sensor 321, and the third accommodating cavity 33 is provided with a battery 331 and a battery switch 332. Further, in addition to the three accommodating cavities, other irregular cavities 34 are arranged in the shell to facilitate lightweight; preferably, the battery 331 adopts two 3.7V lithium batteries, which are connected in series to realize overall 7.4V power supply; the laser displacement sensor 321 is arranged at the bottom of the measuring component 3 and makes the laser emitted by the sensor keep vertical to the ground; a German MIYAR IDL-1420-50 series high-precision laser displacement sensor can be used, which has a measurement range of 35-85 mm, a linearity of 40-50 μm, a repeat accuracy of 2 μm and a measurement frequency of 0.25-4000 kHz.

[0037] The mobile part 1 is a numerical control machining tool. The numerical control machining tool is operated so that the measuring device moves on the device to be measured.

[0038] The connecting part 2 comprises a connecting seat 21, and the connecting seat 21 is provided with a plug-in groove 211 connected with the main shaft of the numerical control machining tool. Preferably, the connecting seat 21 is in an I-shaped structure, and the plug-in groove 211 is arranged at the center top portion and can be a cylindrical groove, facilitating the connection with the main shaft of the numerical control machining tool.

[0039] The connecting part 2 further comprises a charging seat 22, and the charging seat 22 is provided with an external charging interface. The charging seat 22 is used for charging the battery 331. Further, the charging seat 22 is provided with two charging seats arranged on the two sides of the connecting seat 21.

[0040] Embodiment 2

[0041] The above embodiment 1 can also be used as a wallboard part measuring device, and can meet the thickness measurement of other wallboard parts, such as steel plate thickness measurement, and can also be applied to automatic height measurement of parts, high-precision inner diameter measurement and other scenes.

[0042] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0043] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An aircraft skin thickness measuring device, characterized by, The measuring device comprises a mobile part (1), a connecting part (2) and a measuring part (3); The measuring part (3) is connected to the mobile part (1) by the connecting part (2), and a core control board (311) and a laser displacement sensor (321) are arranged on the measuring part (3), and the core control board (311) is connected with the laser displacement sensor (321).

2. The aircraft skin thickness measuring device of claim 1, wherein, A main control MCU module and a wireless data transmission module are arranged on the core control board (311).

3. An aircraft skin thickness measuring device as claimed in claim 2, wherein, A battery charging module, a DC-DC voltage boosting and reducing module and a signal conversion module are further arranged on the core control board (311).

4. An aircraft skin thickness measuring device as claimed in claim 3, wherein, A battery (331) and a battery switch (332) are further arranged on the measuring part (3), the battery (331) supplies power to the laser displacement sensor and the core control board (311), and the battery (331) is connected with the battery switch (332).

5. An aircraft skin thickness measuring device as claimed in claim 4, wherein, The measuring device comprises a housing, a first accommodating cavity (31), a second accommodating cavity (32) and a third accommodating cavity (33) are arranged in the housing, the core control board (311) is arranged in the first accommodating cavity (31), the laser displacement sensor (321) is arranged in the second accommodating cavity (32), and the battery (331) and the battery switch (332) are arranged in the third accommodating cavity (33).

6. An aircraft skin thickness measuring device as claimed in claim 5, wherein, The mobile part (1) is a numerical control machining tool.

7. An aircraft skin thickness measuring device as claimed in claim 6, characterised in that, The connecting part (2) comprises a connecting seat (21), and a plug-in groove (211) is arranged on the connecting seat (21), and the plug-in groove (211) is connected with a main shaft of the numerical control machining tool.

8. An aircraft skin thickness measuring device as claimed in claim 7, characterised in that, The connecting part (2) further comprises a charging seat (22), and an external charging interface is arranged on the charging seat (22).

9. An aircraft skin thickness measuring device as claimed in claim 8, wherein, Two charging seats (22) are arranged on both sides of the connecting seat (21).

10. A wall panel member measuring device characterized by comprising: The measuring device comprises a mobile part (1), a connecting part (2) and a measuring part (3); The measuring part (3) is connected to the mobile part (1) by the connecting part (2), and a core control board (311) and a laser displacement sensor (321) are arranged on the measuring part (3), and the core control board (311) is connected with the laser displacement sensor (321). A main control MCU module and a wireless data transmission module are arranged on the core control board (311). A battery charging module, a DC-DC voltage boosting and reducing module and a signal conversion module are further arranged on the core control board (311). A battery (331) and a battery switch (332) are further arranged on the measuring part (3), the battery (331) supplies power to the laser displacement sensor and the core control board (311), and the battery (331) is connected with the battery switch (332). The measuring device comprises a housing, a first accommodating cavity (31), a second accommodating cavity (32) and a third accommodating cavity (33) are arranged in the housing, the core control board (311) is arranged in the first accommodating cavity (31), the laser displacement sensor (321) is arranged in the second accommodating cavity (32), and the battery (331) and the battery switch (332) are arranged in the third accommodating cavity (33). The mobile part (1) is a numerical control machining tool. The connecting part (2) comprises a connecting seat (21), and a plug-in groove (211) is arranged on the connecting seat (21), and the plug-in groove (211) is connected with a main shaft of the numerical control machining tool. The connecting part (2) further comprises a charging seat (22), and an external charging interface is arranged on the charging seat (22). Two charging seats (22) are arranged on both sides of the connecting seat (21). The measuring device comprises a mobile part (1), a connecting part (2) and a measuring part (3);

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