CN215572777U - Aircraft skin curved surface normal direction hole position degree detects frock - Google Patents
Aircraft skin curved surface normal direction hole position degree detects frock Download PDFInfo
- Publication number
- CN215572777U CN215572777U CN202121598395.1U CN202121598395U CN215572777U CN 215572777 U CN215572777 U CN 215572777U CN 202121598395 U CN202121598395 U CN 202121598395U CN 215572777 U CN215572777 U CN 215572777U
- Authority
- CN
- China
- Prior art keywords
- detection
- curved surface
- skin
- frame
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model discloses a tool for detecting the position degree of a normal hole of a curved surface of an aircraft skin. The device comprises a gauge support, a bottom plate and a detection frame; the upper end of the detection frame is provided with a detection surface; the small platforms are arranged on the detection surface at intervals; the detection hole is arranged on the small platform; a plurality of detection holes are provided; the detection surface is of a curved surface structure consistent with that of the aircraft fairing skin; the detection frame and the outlet detection switching are respectively arranged at two ends of the connecting plate; the detection frame and the outlet detection switching are arranged at intervals; the connecting plate is positioned at the upper end of the bottom plate; the bottom plate is arranged on the upper end surface of the gauge support; the gauge support is of a frame structure. The utility model overcomes the defect of large error of the normal hole of the curved surface measured by the laser tracker; the method has the advantages of capability of quickly detecting the position degree of the normal hole of the fairing skin, high detection efficiency, high precision, convenience in identification by using a three-coordinate measuring instrument and simplicity in operation.
Description
Technical Field
The utility model relates to a detection tool, in particular to a tool for detecting the position degree of a curved surface normal hole of an aircraft skin, and more particularly to a tool for detecting the position degree of a curved surface normal hole of an aircraft skin with high position precision (the precision is 0.005 inch/0.12 mm).
Background
The shape of the aircraft skin is obtained through wind tunnel test simulation and has all-directional irregularity, so most skin parts have no reference surface, most holes in the skin are shear-resistant holes, the gap between the holes and bolts is small, the size of the skin parts can reach several meters, the position precision requirement of mounting holes of the skin is very high, and the distance between all the holes needs to be precisely detected.
The position degree detection of the mounting hole of the skin can directly detect the part by using a three-coordinate measuring instrument or an infrared distance meter; and the inspection tool can also be processed, and the inspection tool is used for inspecting parts after the inspection tool is inspected to be qualified by using a three-coordinate measuring instrument or an infrared distance meter.
The civil aviation manufacturing industry in China is started initially, most of civil aviation high-precision detection equipment is imported from abroad, the detection equipment is high in value and low in matched development degree, an infrared distance meter and a three-seat measuring hole cannot be directly used for a large-size skin mounting hole, a large number of special probes need to be ordered, and the required period and cost restrict the development of airplane skin parts.
The position degree measurement of present skin hole adopts the laser tracker, need install the reflector when the laser tracker measures the hole position, and the manual installation error of reflector has reached 0.5mm because the drill way of skin is anomalous curved surface at skin hole department, reflector manual installation error. Therefore, it is necessary to develop a tool for detecting the position of the normal hole of the curved surface of the aircraft skin, which has high precision and is easy to calibrate.
Disclosure of Invention
The utility model aims to provide a tool for detecting the position of a normal hole of a curved surface of an aircraft skin, which has the characteristics of high detection precision (the precision is 0.005 inch/0.12 mm), easy calibration, high detection efficiency, convenience in identification by using a three-coordinate measuring instrument and simplicity in operation, and can quickly detect the position of the normal hole of the aircraft skin.
In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides an aircraft skin curved surface normal direction hole position degree detects frock which characterized in that: the device comprises a gauge support, a bottom plate and a detection frame;
the upper end of the detection frame is provided with a detection surface; the small platform is arranged on the detection surface; the detection hole is arranged on the small platform;
the detection surface is of a curved surface structure consistent with that of the aircraft fairing skin;
the detection frame and the outlet detection switching are respectively arranged at two ends of the connecting plate; the detection frame and the outlet detection switching are arranged at intervals;
the connecting plate is positioned at the upper end of the bottom plate;
the bottom plate is arranged on the upper end surface of the gauge support;
the gauge support is of a frame structure.
In the technical scheme, the lower end of the gauge support is provided with the caster.
In the technical scheme, a plurality of small platforms are provided; the detection hole is multiple.
In the technical scheme, 32 small platforms are provided; there are 32 detection holes.
In the above technical scheme, the detection frame and the outlet detection switching are respectively positioned on the connecting plate through pins.
The utility model relates to a normal hole position degree detection tool special for an aircraft fairing skin. The tool for detecting the normal hole position degree of the aircraft skin curved surface has the following beneficial effects:
(1) the positions of all holes of the aircraft fairing skin part are contained on the checking fixture frame, so that the positions of a plurality of holes of the fairing skin hole 40 can be checked at one time, and the interchangeability rapid detection of products is realized;
(2) the normal hole of the curved surface on the checking fixture frame is provided with the normal small plane of the shaft hole, so that the center coordinate of the skin can be quickly and accurately captured by using a high-precision three-coordinate measuring instrument (the equipment precision is 0.002mm, and the probe precision is 0.002mm), the detection of the position degree of the normal hole of the skin of the fairing can be quickly and accurately finished by a tool calibrated by the high-precision three-coordinate measuring instrument, and the tool has the advantages of high detection efficiency, high precision, convenience in identification by using the three-coordinate measuring instrument and simplicity in operation; the hole position precision requirement of the utility model reaches 0.12 mm; the problem that the measurement accuracy of the existing laser tracker does not meet the requirement and the error of the laser tracker in measuring the normal hole of the curved surface is large is solved;
(3) the utility model can quickly detect the normal hole position degree of the curved surface, has simple and reliable structure and strong practicability and is easy to use and popularize.
The utility model adopts a five-axis machine tool for one-time processing and has the characteristic of high precision; the utility model adopts three coordinates to directly capture the intersection point, and is easy to identify by using a three-coordinate measuring instrument; the utility model is provided with the trundles, is convenient to move to the field operation, does not need other guarantee resources and is convenient to use and maintain; the method can meet the requirement of rapid inspection of the ram air inlet, and can also be popularized and applied to the field of measurement of the position degree of normal holes of other skins.
The tool for detecting the normal hole position of the aircraft skin curved surface is high in precision (the precision is 0.005 inch/0.12 mm), easy to calibrate and significant in the research of ensuring and improving interchangeability of aircraft skin parts; the problem of the position degree measurement of prior art aircraft skin hole adopt the laser tracker, need install the reflector when the laser tracker measures the hole position, the reflector is installed in skin hole department manually, because the drill way of skin is anomalous curved surface, the manual installation error of reflector is great (its error has reached 0.5mm) is solved.
Drawings
FIG. 1 is a schematic diagram of the front structure and an enlarged view of the normal hole test details of the present invention.
Fig. 2 is a right-view structural diagram of the present invention.
Fig. 3 is a schematic view of the construction of the connection according to the utility model for ram air inlet (skin curved part).
Fig. 4 is a schematic perspective view of a detection frame according to the present invention.
Fig. 5 is an enlarged view of fig. 4 at a.
Fig. 6 is a schematic top view of the detecting frame of the present invention.
Fig. 7 is an enlarged view of fig. 6 at B.
Fig. 8 is a left side view structural diagram of the detection frame in the present invention.
Fig. 9 is a schematic front view of the detection frame of the present invention.
Fig. 10 is an enlarged view of fig. 9 at C.
Fig. 11 is an enlarged view taken at a-a of fig. 6.
In the figure, 1-a caster, 2-a gauge support, 3-a bottom plate, 4-a connecting plate, 5-a detection frame, 5.1-a detection hole, 5.2-a detection surface, 5.3-a small platform, 6-an outlet detection switching and 7-a ram air inlet.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the utility model will be clear and readily understood by the description.
With reference to the accompanying drawings: a tool for detecting the position degree of a normal hole of a curved surface of an aircraft skin comprises a detection tool support 2, a bottom plate 3 and a detection frame 5;
the upper end of the detection frame 5 is provided with a detection surface 5.2; a plurality of small platforms 5.3 which are convenient for capturing the positions of the special-shaped curved surface holes in three coordinates are arranged on the detection surface 5.2 at intervals, so that the positions of normal holes can be rapidly captured during three-coordinate identification and detection of the tool; the detection hole 5.1 is arranged on the small platform 5.3; a plurality of detection holes 5.1 are arranged;
the detection surface 5.2 is a curved surface structure consistent with the curved surface structure of the aircraft fairing skin;
the detection frame 5 and the outlet detection adapter 6 are respectively arranged at two ends of the connecting plate 4; the detection frame 5 and the outlet detection adapter 6 are arranged at intervals;
the connecting plate 4 is positioned at the upper end of the bottom plate 3;
the bottom plate 3 is arranged on the upper end surface of the gauge support 2;
the checking fixture support 2 is of a frame structure (shown in figures 1-11); the gauge support 2 is formed by welding a plurality of square steels, has good bearing capacity, stable structure and simple manufacture, is made of common materials and has abundant sources.
Further, a caster 1 is installed at the lower end of the gauge support 2 (as shown in fig. 1 and 3); examine the bottom of utensil support 2 and be equipped with 4 bolt holes, directly fix installation truckle 1 on examining utensil support 2 through screw nut and packing ring, truckle 1 is convenient for remove this heavy inspection frock, carries according to concrete detection requirement, satisfies the requirement in use place.
Further, there are 32 small platforms 5.3; there are 32 detection holes 5.1 (as shown in fig. 1-3).
Furthermore, the detection frame 5 and the outlet detection adapter 6 are respectively positioned on the connecting plate 4 through pins and then fixed by bolts, nuts and washers, and the detection curved surfaces and the detection holes of the detection frame 5 and the outlet detection adapter 6 are integrally processed.
Furthermore, a ram air inlet 7 is provided on the detection frame 5 (as shown in fig. 3); the mounting mode of the aircraft ram air inlet on the aircraft can be simulated, and the tool can be used as a rapid detection tool for the inlet and outlet hole positions of the ram air inlet.
Examples
The present invention will now be described in detail with reference to an embodiment in which the present invention is applied to the detection of the normal hole position of a certain type of aircraft fairing skin part (ram air inlet). The method also has a guiding function on the detection of the normal hole position degree of other aircraft fairing skin parts (ram air inlets).
In the embodiment, the tool for detecting the position degree of the normal hole of the curved surface of the aircraft skin comprises a detection tool support 2, a bottom plate 3 and a detection frame 5; the upper end of the detection frame 5 is provided with a detection surface 5.2; 32 small platforms 5.3 are arranged on the detection surface 5.2 at intervals; the detection hole 5.1 is arranged on the small platform 5.3; 32 detection holes 5.1 are provided;
the detection surface 5.2 is a curved surface structure consistent with the curved surface structure of the aircraft fairing skin;
the detection frame 5 and the outlet detection adapter 6 are arranged at two ends of the connecting plate 4 at intervals; the connecting plate 4 is positioned at the upper end of the bottom plate 3; the bottom plate 3 is arranged on the upper end surface of the gauge support 2; the lower end of the checking fixture support 2 is provided with a caster 1. The ram air inlet 7 is arranged in the detection frame 5 (as shown in fig. 1-8).
In this embodiment, the bottom plate 3 adopts the whole supporting platform that processes of steel sheet that thickness is 30mm for fixed detection frame prevents to detect frame external force atress and warp.
In this embodiment, the length of aircraft skin curved surface normal hole position degree detection frock is about 1500mm, and the width is about 600mm, and height is about 1035mm, ensures that the detection frock reduces occupation space as far as possible under the prerequisite that can satisfy ram air inlet detection demand.
In the embodiment, the preparation method of the detection frame 5 in the aircraft skin curved surface normal hole position degree detection tool comprises the following steps: the method comprises the steps of obtaining a casting blank by using sand casting aluminum, after stress removal through heat treatment, clamping at one time by using a large five-axis machine tool with a stroke of 2 meters, simultaneously machining a curved surface and a normal hole in the curved surface (as shown in figure 2, machining a small plane with the diameter of 15mm at the theoretical point of the normal hole, wherein the plane is perpendicular to the axis of the normal hole of a skin, and the circle center is the theoretical point of the normal hole), obtaining a detection frame with a large size (2 meters), and facilitating identification by using a three-coordinate measuring instrument. In this embodiment, the detection curved surface of the detection frame 5 is consistent with the curved surface to be detected of the aircraft fairing skin part of a certain model.
In this embodiment, the installation process of the aircraft skin curved surface normal hole position degree detection tool is as follows:
and 7, placing the part to be detected (the ram air inlet) on a detection tool for detection.
In this embodiment, the method for detecting the normal hole position of a skin part (ram air inlet) of a certain type of aircraft fairing comprises the following steps,
firstly, a part (a ram air inlet) is placed on the curved surface of the detection frame, a skin bolt hole of the part and a detection hole on the detection frame 5 are aligned, and then a detection pin penetrates through the skin bolt hole of the part and is installed in the hole of the detection frame 5;
when all the detection pins can be arranged in the detection frame, judging that the skin hole position degree of the ram air inlet is qualified; otherwise, the product is judged to be unqualified.
And (4) conclusion: this embodiment can short-term test curved surface's normal direction hole site degree, and easy and simple to handle, detection efficiency are high, and the practicality is strong.
In order to more clearly illustrate the advantages of the tool for detecting the position degree of the normal hole of the special-shaped curved surface of the aircraft skin, compared with the prior art, the two technical schemes are compared by a worker, and the comparison result is as follows:
for example, CN103673879A needs to install a reflector when measuring the hole position by using a laser tracker, the reflector is manually installed at the hole of a skin, and because the hole opening of the skin is an irregular curved surface, the manual installation error of the reflector can reach about 0.5mm (note: the accuracy of the equipment (laser tracker) is about 0.1mm, and the installation error of the reflector is about 0.4 mm). Therefore, the prior art is limited by the characteristics of skin holes and the measurement principle of a laser tracker, has large measurement error and is not suitable for the verification of the normal hole position degree with high precision (the precision is 0.005 inch/0.12 mm).
According to the utility model, the small platform 5.3 is processed at the detection orifice, so that a three-coordinate measuring instrument can be used for collecting the axis of the hole and the plane of the orifice, and the central coordinate of the hole is automatically calculated by the equipment without manual fitting. The precision of the three-coordinate probe is 0.002mm, the precision of the probe is 0.002mm, and the accumulated error is 0.004 mm. Therefore, the utility model is suitable for the detection of the normal hole position degree with high precision (the precision is 0.005 inch/0.12 mm), and the detection precision is high.
As can be seen from the above table, compared with the prior art, the tool for detecting the normal hole position of the aircraft skin curved surface can detect the normal hole position of the curved surface with high precision (the precision is 0.005 inch/0.12 mm), and has the advantages of high detection precision, high detection efficiency, long verification period and low detection cost.
Other parts not described belong to the prior art.
Claims (5)
1. The utility model provides an aircraft skin curved surface normal direction hole position degree detects frock which characterized in that: comprises a checking fixture support (2), a bottom plate (3) and a detection frame (5);
the upper end of the detection frame (5) is provided with a detection surface (5.2); the small platform (5.3) is arranged on the detection surface (5.2); the detection hole (5.1) is arranged on the small platform (5.3);
the detection surface (5.2) is of a curved surface structure consistent with the curved surface structure of the aircraft fairing skin;
the detection frame (5) and the outlet detection adapter (6) are respectively arranged at two ends of the connecting plate (4); the detection frame (5) and the outlet detection switching device (6) are arranged at intervals;
the connecting plate (4) is positioned at the upper end of the bottom plate (3);
the bottom plate (3) is arranged on the upper end surface of the checking fixture support (2);
the checking fixture support (2) is of a frame structure.
2. The aircraft skin curved surface normal hole location degree detection tool of claim 1, characterized in that: the lower end of the gauge support (2) is provided with a caster (1).
3. The aircraft skin curved surface normal hole location degree detection tool according to claim 1 or 2, characterized in that: a plurality of small platforms (5.3) are provided; the detection holes (5.1) are multiple.
4. The aircraft skin curved surface normal hole location degree detection tool of claim 3, characterized in that: 32 small platforms (5.3) are provided; 32 detection holes (5.1) are provided.
5. The aircraft skin curved surface normal hole location degree detection tool of claim 3, characterized in that: the detection frame (5) and the outlet detection switching (6) are positioned on the connecting plate (4) through pins respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121598395.1U CN215572777U (en) | 2021-07-14 | 2021-07-14 | Aircraft skin curved surface normal direction hole position degree detects frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121598395.1U CN215572777U (en) | 2021-07-14 | 2021-07-14 | Aircraft skin curved surface normal direction hole position degree detects frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215572777U true CN215572777U (en) | 2022-01-18 |
Family
ID=79825604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121598395.1U Active CN215572777U (en) | 2021-07-14 | 2021-07-14 | Aircraft skin curved surface normal direction hole position degree detects frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215572777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451882A (en) * | 2022-11-10 | 2022-12-09 | 通用技术集团沈阳机床有限责任公司 | Method for calculating normal vector of axis of skin bottom hole based on space pose of floating pin |
-
2021
- 2021-07-14 CN CN202121598395.1U patent/CN215572777U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451882A (en) * | 2022-11-10 | 2022-12-09 | 通用技术集团沈阳机床有限责任公司 | Method for calculating normal vector of axis of skin bottom hole based on space pose of floating pin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110567339B (en) | Method for detecting position degree of circumferential hole on end face of super-huge type bearing | |
| CN108592851B (en) | Workpiece symmetry detection tool and detection method | |
| CN215572777U (en) | Aircraft skin curved surface normal direction hole position degree detects frock | |
| CN111765843A (en) | Laser measurement adapter | |
| CN206347955U (en) | A kind of porous punching parts position degree and surface profile detection means | |
| CN113074628B (en) | Device and method for checking trimming molded surface | |
| CN211503932U (en) | Utensil is examined in bevel gear forging tooth thickness on-line measuring | |
| CN213238757U (en) | A examine utensil for detecting thin wall stator-rotor punching plane degree | |
| CN206321193U (en) | A kind of special gauge for IC engine airframe cylinder holes coaxality measurement | |
| CN112113758B (en) | Device and method for testing radial load of split snap ring | |
| CN210154504U (en) | Special gauge for shape and position tolerance of piston pin hole | |
| CN210558756U (en) | Upper lofting tool and elevator guide rail lofting inspection tool | |
| CN217032323U (en) | Multifunctional bolt head chamfer angle checking fixture | |
| CN209689523U (en) | A kind of front fog lamp of automobile detection tool device facilitating operation | |
| CN219869467U (en) | Blade shroud contour repair detection template | |
| CN212512835U (en) | Frock suitable for percentage table detects | |
| CN219244463U (en) | Part gauge | |
| CN214276707U (en) | Hole position detection tool | |
| CN114838637B (en) | Gauge and method for detecting square groove of fifth balancing block of crankshaft | |
| CN218847079U (en) | Device for detecting small-end inclined plane of connecting rod of variable compression ratio engine | |
| CN206347956U (en) | A kind of surface profile special gauge | |
| CN212747558U (en) | Rectangular workpiece through hole detection tool | |
| CN218723629U (en) | Checking fixture suitable for side reinforcing plate | |
| CN217844983U (en) | Balanced suspension crossbeam examines utensil | |
| CN109556555B (en) | Rapid detection device and detection method for wallboard manufacturing errors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |