CN112577896A - Detection device for thin skin bulging phenomenon - Google Patents
Detection device for thin skin bulging phenomenon Download PDFInfo
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- CN112577896A CN112577896A CN202011452477.5A CN202011452477A CN112577896A CN 112577896 A CN112577896 A CN 112577896A CN 202011452477 A CN202011452477 A CN 202011452477A CN 112577896 A CN112577896 A CN 112577896A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/08—Detecting presence of flaws or irregularities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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Abstract
A detection device for the thin skin bulging phenomenon is characterized in that an elastic load transmission mechanism and a load detection mechanism are arranged between a load application pressing plate and a load transmission pressing plate, the elastic load transmission mechanism is composed of a plurality of groups of load components, the plurality of groups of load components are uniformly distributed on the load application pressing plate and the load transmission pressing plate, load identification scribed lines are engraved on the load detection mechanism, and the load detection mechanism is positioned in the centers of the load application pressing plate and the load transmission pressing plate; the elastic load transfer mechanism and the load detection mechanism move downwards along with the loading pressing plate by applying acting force on the loading pressing plate, the applied load value can be read by the load identification scribed line on the load detection mechanism, and when the load applied along the direction perpendicular to the loading pressing plate is level with the edge of the load indication sleeve and the load identification scribed line on the load identification rod, the surface state of the aircraft skin is checked, so that subjective factors are effectively avoided, the working efficiency is high, and the riveting quality of the aircraft structure is improved.
Description
Technical Field
The invention relates to the technical field of airplane structure detection, in particular to a detection device for a thin skin bulging phenomenon.
Background
The traditional method for judging surface bulging of the thin skin mainly comprises the step of pressing the surface of a product by hands of operators for inspection, however, in the process of manual inspection, different operators have great differences in the aspects of loading force, the size of a contact surface between a palm and the surface of the product and the like, so that the judgment process and conclusion have strong subjectivity, even in order to confirm a fault, multiple persons need to repeatedly press a suspected bulging part, the detection efficiency is low, and adverse effects are easily caused on the surface of the product. Therefore, the traditional manual pressing detection method cannot efficiently and accurately detect and judge the surface bulging phenomenon of the thin skin, and a professional detection device is required to be provided for detection.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a device for detecting a thin skin flutter phenomenon, so as to solve the problems in the background art.
The technical problem solved by the invention is realized by adopting the following technical scheme:
a detection device for a thin skin bulging phenomenon comprises a load application pressing plate, an elastic load transmission mechanism, a load detection mechanism and a load transmission pressing plate, wherein the elastic load transmission mechanism and the load detection mechanism are arranged between the load application pressing plate and the load transmission pressing plate, the elastic load transmission mechanism consists of a plurality of groups of load components, the plurality of groups of load components are uniformly distributed on the load application pressing plate and the load transmission pressing plate, load identification scribed lines are engraved on the load detection mechanism, and the load detection mechanism is positioned in the centers of the load application pressing plate and the load transmission pressing plate; by applying acting force on the loading pressing plate, the elastic load transfer mechanism and the load detection mechanism move downwards along with the loading pressing plate, and the applied load value can be read by the load identification reticle on the load detection mechanism.
In the invention, the load assembly comprises load transmission sleeves, springs and load transmission support columns, the load transmission sleeves are uniformly distributed on the load application pressing plate, the springs are arranged in the load transmission sleeves, one ends of the load transmission support columns extend into the load transmission sleeves to be contacted with the springs, and the other ends of the load transmission support columns are connected with the load transmission pressing plate.
In the invention, the loading pressure plate is provided with a thread for connecting with the load transmission sleeve.
In the invention, the load transmission pressure plate is provided with a thread for connecting with the load transmission support.
In the invention, the bottom of the load transmission sleeve is provided with a load transmission sleeve cover.
In the invention, the load detection mechanism comprises a load indication sleeve and a load identification rod, wherein one end of the load indication sleeve is positioned in the center of the load application pressure plate, the other end of the load indication sleeve is inserted into the load identification rod, the load identification rod is connected with the load transmission pressure plate, a load identification scribed line is carved on the load identification rod, and the load identification scribed line is calibrated through a standard load.
In the invention, the loading pressure plate is provided with a thread for connecting with the load indication sleeve.
In the invention, the load transmission pressure plate is provided with a thread for connecting with the load identification rod.
In the invention, the loading pressing plate and the load transferring pressing plate are the same in structure.
When the device is used, the detection device is firstly placed at a to-be-detected part of the thin skin on the surface of the airplane, so that the lower surface of the load transmission pressure plate is in contact with the surface of the skin of the airplane, and before detection, the edge of the load indication sleeve is required to be flush with a zero scale mark on the load marking rod when no load is applied; during detection, a detector puts a palm on the upper surface of the loading pressing plate and applies load along the direction vertical to the surface of the loading pressing plate, at the moment, a spring arranged in the loading sleeve is compressed in a loaded state, and the load indicating sleeve synchronously moves along the load direction along with the loading pressing plate; when the load applied in the direction vertical to the loading pressing plate is level with the edge of the load indicating sleeve and the load mark line on the load mark rod, checking whether the surface of the aircraft skin is sunken or whether the peripheral surface of the loaded part of the aircraft skin is obviously bulged; then slowly taking the palm off the loading pressing plate, and removing the load; at this time, carefully observing whether the depressed part of the aircraft skin or the raised part around the loaded part of the aircraft skin rapidly rebounds to the original state and is accompanied by popping sound, if so, indicating that the skin has a drumming phenomenon and needs to be eliminated; if not, the riveting quality and the structural stability of the surface aircraft skin meet the technical requirements.
Has the advantages that: the method can efficiently and accurately detect the surface bulging phenomenon of the thin skin after the thin skin is assembled, so as to judge whether the thin skin meets the assembly requirement, effectively avoid subjective factors, have high working efficiency and stable reliability, and provide guarantee for improving the riveting quality of the aircraft structure.
Drawings
Fig. 1 is an isometric view of a preferred embodiment of the invention.
Fig. 2 is a front view of the preferred embodiment of the present invention.
Fig. 3 is a cross-sectional view taken at a-a in fig. 2.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 1-3, the detection device for the thin skin bulging phenomenon includes a load application pressing plate 1, a load indication sleeve 2, a load identification rod 3, a load transmission sleeve 4, a load transmission sleeve cover 5, a spring 6, a load transmission support post 7 and a load transmission pressing plate 8, wherein threads for connecting the load transmission sleeve 4 are processed on the load application pressing plate 1, the load transmission sleeve 4 is uniformly distributed on the load application pressing plate 1, the spring 6 is arranged in the load transmission sleeve 4, one end of the load transmission support post 7 extends into the load transmission sleeve 4 to be contacted with the spring 6, the load transmission sleeve cover 5 is arranged at the bottom of the load transmission sleeve 4, and the other end of the load transmission support post 7 is connected with the load transmission pressing plate 8 through threads; one end of the load indicating sleeve 2 is positioned in the center of the load applying pressing plate 1, the other end of the load indicating sleeve 2 is inserted into the load identification rod 3, the load identification rod 3 is connected with the load transferring pressing plate 8 through threads, load identification scribed lines are scribed on the load identification rod 3, and the load identification scribed lines are calibrated through standard loads.
In the present embodiment, in order to simplify the manufacturing cost and difficulty of the device, the loading platen 1 and the loading platen 8 are panels having the same structure.
In the embodiment, when the detection device is installed, the spring 6 is firstly arranged in the load transmission sleeve 4, then the load transmission sleeve 4 internally provided with the spring 6 is sequentially screwed into the corresponding threaded hole of the load application pressing plate 1, then one end of the load transmission support post 7 is sleeved into the load transmission sleeve 4 and then covered with the load transmission sleeve cover 5, and then the other end of the load transmission support post 7 is sequentially screwed into the corresponding threaded hole of the load transmission pressing plate 8; simultaneously, a load identification rod 3 on a load transmission pressure plate 8 is sleeved into a load indication sleeve 2 on a load application pressure plate 1, and the up-and-down movement of the load transmission sleeve 4 and the load indication sleeve 2 is realized by utilizing the telescopic deformation performance of a spring 6 so as to complete the installation of the thin skin drumming phenomenon detection device;
when the device is used, the detection device is firstly placed at a to-be-detected part of the thin skin on the surface of the airplane, so that the lower surface of the load transfer pressing plate 8 is in contact with the surface of the airplane skin, and before detection, the edge of the load indication sleeve 2 is required to be flush with a zero scale mark on the load identification rod 3 when no load is applied; during detection, a detector puts a palm on the upper surface of the loading pressing plate 1 and applies load along the direction vertical to the surface of the loading pressing plate 1, at the moment, a spring 6 arranged in a loading sleeve 4 in a loaded state is compressed, and a load indicating sleeve 2 synchronously moves along the load direction along with the loading pressing plate 1; when the load applied in the direction vertical to the loading pressing plate 1 is level with the edge of the load indicating sleeve 2 and the load mark line on the load mark rod 3, checking whether the surface of the aircraft skin is sunken or whether the peripheral surface of the loaded part of the aircraft skin is obviously bulged; then slowly taking the palm off the loading pressing plate 1, and removing the load; at this time, carefully observing whether the depressed part of the aircraft skin or the raised part around the loaded part of the aircraft skin rapidly rebounds to the original shape and is accompanied by a sound of "popping", if so, indicating that the skin has a drumming phenomenon and needs to be eliminated; if not, the riveting quality and the structural stability of the surface of the aircraft skin meet the technical requirements.
By the method, the thin skin surface bulging phenomenon can be efficiently and accurately detected and judged, and the judgment and the detection of the thin skin surface bulging phenomenon are completed.
Claims (9)
1. A detection device for a thin skin bulging phenomenon comprises a load application pressing plate, an elastic load transmission mechanism, a load detection mechanism and a load transmission pressing plate, and is characterized in that the elastic load transmission mechanism and the load detection mechanism are arranged between the load application pressing plate and the load transmission pressing plate, the elastic load transmission mechanism consists of a plurality of groups of load components, the plurality of groups of load components are uniformly distributed on the load application pressing plate and the load transmission pressing plate, load mark scribed lines are engraved on the load detection mechanism, and the load detection mechanism is positioned at the centers of the load application pressing plate and the load transmission pressing plate; by applying acting force on the loading pressing plate, the elastic load transfer mechanism and the load detection mechanism move downwards along with the loading pressing plate, and the applied load value can be read by the load identification reticle on the load detection mechanism.
2. The device for detecting the thin skin bulging phenomenon according to claim 1, wherein the load assembly comprises load transmission sleeves, springs and load transmission support columns, the load transmission sleeves are uniformly distributed on the load application pressing plate, the springs are arranged in the load transmission sleeves, one ends of the load transmission support columns extend into the load transmission sleeves to be in contact with the springs, and the other ends of the load transmission support columns are connected with the load transmission pressing plate.
3. The device for detecting the thin skin bulging phenomenon according to claim 2, wherein the loading pressure plate is provided with threads for connection with the load-transmitting sleeve.
4. The device for detecting the thin skin bulging phenomenon according to claim 2, wherein the load-transmitting pressing plate is provided with threads for connecting with the load-transmitting strut.
5. The device for detecting the thin skin bulging phenomenon according to claim 1, wherein the load detection mechanism comprises a load indication sleeve and a load identification rod, one end of the load indication sleeve is positioned in the center of the loading pressure plate, the other end of the load indication sleeve is inserted into the load identification rod, the load identification rod is connected with the loading pressure plate, and load identification score lines are carved on the load identification rod.
6. The thin skin buckling phenomenon detection device of claim 5, wherein threads for connection with a load indication sleeve are machined on the load application pressure plate.
7. The device for detecting the thin skin bulging phenomenon according to claim 5, wherein threads for connecting with the load identification rods are machined on the load transmission pressing plate.
8. The device for detecting the thin skin buckling phenomenon according to claim 1, wherein the loading pressure plate and the loading pressure plate are structurally identical panels.
9. The use method of the detection device for the thin skin bulging phenomenon according to any one of claims 1 to 8, characterized in that when in use, the detection device is firstly placed on a to-be-detected part of the thin skin on the surface of the airplane, so that the lower surface of the load transmission pressure plate is in contact with the surface of the airplane skin, and before detection, the edge of the load indication sleeve is ensured to be flush with a zero scale mark on the load identification rod when no load is applied; during detection, a detector puts a palm on the upper surface of the loading pressing plate and applies load along the direction vertical to the surface of the loading pressing plate, at the moment, a spring arranged in the loading sleeve is compressed in a loaded state, and the load indicating sleeve synchronously moves along the load direction along with the loading pressing plate; when the load applied in the direction vertical to the loading pressing plate is level with the edge of the load indicating sleeve and the load mark line on the load mark rod, checking whether the surface of the aircraft skin is sunken or whether the peripheral surface of the loaded part of the aircraft skin is obviously bulged; then slowly taking the palm off the loading pressing plate, and removing the load; at this time, carefully observing whether the depressed part of the aircraft skin or the raised part around the loaded part of the aircraft skin rapidly rebounds to the original state and is accompanied by popping sound, if so, indicating that the skin has a drumming phenomenon and needs to be eliminated; if not, the riveting quality and the structural stability of the surface of the aircraft skin meet the technical requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011452477.5A CN112577896A (en) | 2020-12-12 | 2020-12-12 | Detection device for thin skin bulging phenomenon |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011452477.5A CN112577896A (en) | 2020-12-12 | 2020-12-12 | Detection device for thin skin bulging phenomenon |
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| CN112577896A true CN112577896A (en) | 2021-03-30 |
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| CN202011452477.5A Pending CN112577896A (en) | 2020-12-12 | 2020-12-12 | Detection device for thin skin bulging phenomenon |
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Application publication date: 20210330 |