CN107719697B - Accurate positioning device for internal and external measuring points of thin-wall structure of aerospace product - Google Patents
Accurate positioning device for internal and external measuring points of thin-wall structure of aerospace product Download PDFInfo
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- CN107719697B CN107719697B CN201710841845.7A CN201710841845A CN107719697B CN 107719697 B CN107719697 B CN 107719697B CN 201710841845 A CN201710841845 A CN 201710841845A CN 107719697 B CN107719697 B CN 107719697B
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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
Abstract
The invention provides an accurate positioning device for internal and external measuring points of a thin-wall structure of an aerospace product, which comprises a south polarity positioning device and a north polarity positioning device, wherein the south polarity positioning device consists of a measuring point positioning cylinder A, an annular magnet A, a magnet limiting cylinder A and a flange fixing standard component A; the north polarity positioning device consists of a measuring point positioning cylinder B, an annular magnet B, a magnet limiting cylinder B and a flange fixing standard part B, wherein the magnet limiting cylinder B is arranged at the opening end of the measuring point positioning cylinder B through the flange fixing standard part B, and the annular magnet B is arranged in the measuring point positioning cylinder B. The invention can meet the requirement of quickly and accurately positioning the internal and external measuring points of the thin-wall structure of the aerospace product, greatly improves the positioning efficiency of the internal and external measuring points of the thin-wall structure and promotes the smooth completion of the test.
Description
Technical Field
The invention belongs to the field of strength environment test devices, and particularly relates to an accurate positioning device for internal and external measuring points of a thin-wall structure of an aerospace product.
Background
When an aerospace model static test is carried out, for thin-wall structures such as a tail section, a transition section, a liquid oxygen tank, a coal oil tank and the like, the number of measuring points is not only large (generally exceeds 500), but also most of the measuring points are distributed on the inner wall and the outer wall of the cabin section in pairs. The positioning of internal and external measuring points on a bulkhead usually selects a reference object (such as a stringer, a reinforcing rib grid, a welding seam and the like) and then adopts a steel ruler to measure the position of the measuring point, and due to the limitation of the method, the following problems mainly exist:
⑴, the precision is poor, for the storage box structure, the inner wall is a grid reinforcing rib structure, the measuring point can be positioned with higher precision by referring to a plurality of grids, the outer wall is a smooth cambered surface, only a certain two welding lines can be selected as reference when positioning, if the measuring point is far away from the welding lines, the positioning method by using a steel ruler has higher difficulty and generates larger errors, for the cabin section structure, one side is a stringer structure, the positioning precision is higher, and the other side is distributed with a rivet structure, so that the selection difficulty of the positioning reference object is high due to the more discrete distribution of the rivets, and meanwhile, the positioning errors with different degrees are generated due to the selection of different reference objects.
⑵ is inefficient in that the positioning time is generally short for one side of a reference object such as a stringer or a grid, the positioning accuracy is generally improved by spending a lot of time for positioning with few or irregular reference objects, and special auxiliary means are also needed for positioning some positions which cannot be directly positioned, such as the area near the front bottom of the inner wall of the front short shell of the oxygen box.
⑶, the measuring point graph provided by the task book generally only displays the distribution position of one side of the cabin or the storage box, the position of the other side is mirror image distribution, the operator needs to search by himself, the measuring point is positioned without attention, the positioning position is easy to be reversed, especially for the closed storage box structure, if the positioning is wrong, the detection can not be carried out.
Therefore, a test device for solving the problem of difficult positioning of internal and external measuring points of the thin-wall structure of an aerospace product is urgently needed.
Disclosure of Invention
The invention aims to provide the accurate positioning device for the internal and external measuring points of the thin-wall structure of the aerospace product, which can meet the requirement of realizing quick and accurate positioning of the internal and external measuring points of the thin-wall structure of the aerospace product, solve the problem that the internal and external measuring points of the storage tank structure of different aerospace products cannot be detected after being positioned, break through the technical bottleneck that the internal and external measuring points of the thin-wall structure have poor positioning accuracy and low reliability, improve the positioning efficiency of the internal and external measuring points of the thin-wall structure to a greater extent, and meet the requirement of accurate positioning of the thin-wall structure of different thicknesses of non-.
The invention is realized by the following specific scheme:
an accurate positioning device for internal and external measuring points of a thin-wall structure of an aerospace product comprises a pair of positioning devices with opposite magnetism, and comprises a south polarity positioning device and a north polarity positioning device, wherein the south polarity positioning device comprises a measuring point positioning cylinder A, an annular magnet A, a magnet limiting cylinder A and a flange fixing standard component A; the north polarity positioning device comprises a measuring point positioning cylinder B, an annular magnet B, a magnet limiting cylinder B and a flange fixing standard part B, wherein the magnet limiting cylinder B is installed at the opening end of the measuring point positioning cylinder B through the flange fixing standard part B, and the annular magnet B is installed in the measuring point positioning cylinder B.
Preferably, the measuring point positioning cylinder A is composed of a flange A, a thin-wall circular tube A and a circular ring which are sequentially connected from top to bottom.
Preferably, the ring-shaped magnet A is ring-shaped and can be embedded into an inner cavity formed by the thin-wall circular tube A and a circular ring of the measuring point positioning cylinder A, wherein the south pole side of the ring-shaped magnet A faces the circular ring direction of the measuring point positioning cylinder A and is formed by combining one or more pieces.
Preferably, the magnet limiting cylinder A is composed of a flange B and a thin-wall circular tube B which are sequentially connected from top to bottom, and an inner cavity of the measuring point positioning cylinder A can be embedded.
Preferably, the flange fixing standard component A is used for fixedly mounting a flange A of the measuring point positioning cylinder A and a flange B of the magnet limiting cylinder A.
Preferably, the north pole side of the magnet of the ring-shaped magnet B faces the ring direction of the measuring point positioning cylinder B and is formed by combining one or more pieces.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an accurate positioning device for internal and external measuring points of an aerospace product thin-wall structure, which carries out subversive improvement on a positioning method and has the core principle of accurately positioning the internal and external strain measuring points by utilizing the opposite attraction of magnets. When the device is used, the measuring point is positioned at one side easy to position, the south polarity positioning device is placed at one side easy to position, the north polarity positioning device is close to the measuring point area at one side difficult to position, and the north polarity positioning device is adsorbed to the south polarity positioning device through the bulkhead by utilizing the opposite attraction of the magnets, so that quick and ready positioning is realized at one side difficult to position. The device has the following advantages:
⑴, the precision is high, the automatic centering of the internal and external strain measuring points is realized through the same-polarity attraction capability of the magnets, and the positioning precision can be controlled within +/-0.5 mm;
⑵, the efficiency is improved, because the side which is difficult to be positioned can be quickly positioned by the magnet, the positioning efficiency is improved by more than 50%;
⑶, the error is avoided, because the two magnets are in the same position when being attracted, the problem of positioning error at the inner and outer measuring points is avoided;
⑷ has strong adaptability, can adapt to cabin sections and storage tanks with different thicknesses, and can solve the problem that certain positions cannot be directly positioned by using the method;
⑸ has high cost performance, and the positioning device has simple structure, low cost and high cost performance.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic view of a south polarity positioning apparatus of the present invention;
FIG. 3 is a schematic view of a measuring point positioning cylinder according to the present invention;
FIG. 4 is a schematic view of the magnet spacing cylinder of the present invention;
FIG. 5 is a schematic view of the north polar positioning apparatus of the present invention;
fig. 6 is a schematic view of the installation of an embodiment of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and specific examples. These examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure in any way whatsoever. After reading the description of the invention, one skilled in the art can make various changes and modifications to the invention, and such equivalent changes and modifications also fall into the scope of the invention defined by the claims. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in FIG. 1, the device for accurately positioning internal and external measuring points of an aerospace product thin-wall structure provided by the invention comprises a pair of positioning devices with opposite magnetism, and comprises: south polar positioner 1, north polar positioner 2.
As shown in fig. 2, the south polarity positioning device 1 comprises a measuring point positioning cylinder a21, a circular magnet a22, a magnet limiting cylinder a23 and a flange fixing standard a24, wherein the magnet limiting cylinder a23 is mounted at the opening end of the measuring point positioning cylinder a21 through the flange fixing standard a24, and the circular magnet a22 is mounted in the measuring point positioning cylinder a 21.
As shown in FIG. 3, the measuring point positioning cylinder A21 is composed of a flange A31, a thin-wall round pipe A32 and a round ring 33 which are connected in sequence from top to bottom.
As shown in fig. 2, the circular magnet a22 is circular and can be embedded into the inner cavity formed by the thin-walled circular tube a32 and the circular ring 33 of the station positioning cylinder a21, wherein the south pole side of the magnet faces the circular direction of the station positioning cylinder a21 and can be formed by one or a plurality of pieces.
As shown in fig. 4, the magnet-limiting cylinder a23 is composed of a flange B41, a thin-wall circular tube B42 connected in sequence from top to bottom, and can be embedded into the inner cavity of the measuring point positioning cylinder a 21.
As shown in fig. 2, the flange fixing standard a24 is used for fixedly mounting a flange a31 of a station positioning cylinder a21 and a flange B41 of a magnet limiting cylinder a 23.
As shown in fig. 5, the north polarity positioning device 2 is composed of a measuring point positioning cylinder B51, a circular magnet B52, a magnet limiting cylinder B53 and a flange fixing standard B54, wherein the magnet limiting cylinder B53 is mounted at the opening end of the measuring point positioning cylinder B51 through the flange fixing standard B54, and the circular magnet B51 is mounted in the measuring point positioning cylinder B51.
As shown in fig. 5, the north pole side of the magnet of the circular ring magnet B52 may be formed of one or a combination of plural pieces in the direction of the circle of the station positioning cylinder B51.
In the specific implementation, as shown in fig. 6, taking a thin-walled structure of an aerospace product as an example, firstly, a measuring point is positioned on the easy-to-position side, then, the south polarity positioning device 1 is placed on the easy-to-position side, the north polarity positioning device 2 is close to the measuring point area on the difficult-to-position side, and the north polarity positioning device 2 is adsorbed to the south polarity positioning device 1 through a bulkhead by utilizing the opposite attraction of magnets, so that the fast and ready positioning is realized on the difficult-to-position side.
In summary, the accurate positioning device for the internal and external measuring points of the thin-wall structure of the aerospace product, provided by the invention, can meet the requirement of realizing rapid and accurate positioning of the internal and external measuring points of the thin-wall structure of the aerospace product through a pair of positioning devices with mutually different magnetism, solves the problem that the internal and external measuring points of the storage tank structure of different aerospace products cannot be detected after being positioned, breaks through the technical bottleneck that the internal and external measuring points of the thin-wall structure are poor in positioning accuracy and low in reliability, improves the positioning efficiency of the internal and external measuring points of the thin-wall structure to a greater extent, and meets the requirements of accurate positioning of the thin-wall structures with.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (6)
1. An accurate positioning device for internal and external measuring points of a thin-walled structure of an aerospace product is composed of a pair of positioning devices with mutually opposite magnetism, and is characterized by comprising a south polarity positioning device (1) and a north polarity positioning device (2), wherein the south polarity positioning device (1) is composed of a measuring point positioning cylinder A (21), an annular magnet A (22), a magnet limiting cylinder A (23) and a flange fixing standard part A (24), the magnet limiting cylinder A (23) is installed at the opening end of the measuring point positioning cylinder A (21) through the flange fixing standard part A (24), and the annular magnet A (22) is installed in the measuring point positioning cylinder A (21); the north polarity positioning device (2) is composed of a measuring point positioning cylinder B (51), an annular magnet B (52), a magnet limiting cylinder B (53) and a flange fixing standard part B (54), wherein the magnet limiting cylinder B (53) is installed at the opening end of the measuring point positioning cylinder B (51) through the flange fixing standard part B (54), and the annular magnet B (51) is installed in the measuring point positioning cylinder B (51).
2. The device for accurately positioning the internal and external measuring points of the thin-wall structure of an aerospace product as claimed in claim 1, wherein the measuring point positioning cylinder A (21) is composed of a flange A (31), a thin-wall circular tube A (32) and a circular ring (33) which are sequentially connected from top to bottom.
3. The device for accurately positioning the internal and external measuring points of the aerospace product thin-wall structure as claimed in claim 2, wherein the ring-shaped magnet A (22) is ring-shaped and can be embedded into an inner cavity formed by the thin-wall circular tube A (32) and the circular ring (33) of the measuring point positioning cylinder A (21), wherein the south pole side of the ring-shaped magnet A (22) faces the circular ring direction of the measuring point positioning cylinder A (21) and is formed by combining one or more pieces.
4. The device for accurately positioning the internal and external measuring points of the aerospace product thin-wall structure as claimed in claim 2, wherein the magnet limiting cylinder A (23) is composed of a flange B (41) and a thin-wall circular tube B (42) which are sequentially connected from top to bottom, and can be embedded into the inner cavity of the measuring point positioning cylinder A (21).
5. The device for accurately positioning the internal and external measuring points of the aerospace product thin-wall structure as claimed in claim 4, wherein the flange fixing standard component A (24) is used for fixedly mounting the flange A (31) of the measuring point positioning cylinder A (21) and the flange B (41) of the magnet limiting cylinder A (23).
6. The device for accurately positioning the internal and external measuring points of the thin-wall structure of an aerospace product as claimed in claim 1, wherein the north pole side of the magnet of the ring-shaped magnet B (52) faces the ring direction of the measuring point positioning cylinder B (51) and is formed by combining one or more pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841845.7A CN107719697B (en) | 2017-09-18 | 2017-09-18 | Accurate positioning device for internal and external measuring points of thin-wall structure of aerospace product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841845.7A CN107719697B (en) | 2017-09-18 | 2017-09-18 | Accurate positioning device for internal and external measuring points of thin-wall structure of aerospace product |
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| Publication Number | Publication Date |
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| CN107719697A CN107719697A (en) | 2018-02-23 |
| CN107719697B true CN107719697B (en) | 2020-08-04 |
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Citations (6)
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|---|---|---|---|---|
| CN201478987U (en) * | 2009-04-19 | 2010-05-19 | 李志伟 | Non-contact magnetic buffering coupler |
| CN104097792A (en) * | 2014-07-29 | 2014-10-15 | 北京卫星环境工程研究所 | Electromagnetic unlocking structure for in-orbit unfolding operation of spacecraft detection device mechanism |
| CN204057247U (en) * | 2014-07-18 | 2014-12-31 | 华南理工大学 | Delivery device is transmitted in a kind of location |
| CN105832244A (en) * | 2016-03-05 | 2016-08-10 | 岳凌云 | Device convenient for cleaning glass |
| CN106427877A (en) * | 2016-10-08 | 2017-02-22 | 李德生 | Permanent magnet moving positioning buckle |
| US9689412B1 (en) * | 2017-02-01 | 2017-06-27 | Northrop Grumman Systems Corporation | Method and apparatus for magnetic panel attachment |
-
2017
- 2017-09-18 CN CN201710841845.7A patent/CN107719697B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201478987U (en) * | 2009-04-19 | 2010-05-19 | 李志伟 | Non-contact magnetic buffering coupler |
| CN204057247U (en) * | 2014-07-18 | 2014-12-31 | 华南理工大学 | Delivery device is transmitted in a kind of location |
| CN104097792A (en) * | 2014-07-29 | 2014-10-15 | 北京卫星环境工程研究所 | Electromagnetic unlocking structure for in-orbit unfolding operation of spacecraft detection device mechanism |
| CN105832244A (en) * | 2016-03-05 | 2016-08-10 | 岳凌云 | Device convenient for cleaning glass |
| CN106427877A (en) * | 2016-10-08 | 2017-02-22 | 李德生 | Permanent magnet moving positioning buckle |
| US9689412B1 (en) * | 2017-02-01 | 2017-06-27 | Northrop Grumman Systems Corporation | Method and apparatus for magnetic panel attachment |
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| CN107719697A (en) | 2018-02-23 |
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