CN107263429B - Method for line repair and marking of spherical skin hole - Google Patents
Method for line repair and marking of spherical skin hole Download PDFInfo
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- CN107263429B CN107263429B CN201610216893.2A CN201610216893A CN107263429B CN 107263429 B CN107263429 B CN 107263429B CN 201610216893 A CN201610216893 A CN 201610216893A CN 107263429 B CN107263429 B CN 107263429B
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- hole
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- spherical skin
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000009286 beneficial effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/04—Devices, e.g. scribers, for marking
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a positioning method, in particular to a method for line repair and marking of a spherical skin hole. The method comprises the following steps: firstly, fixing the spherical skin according to the determined symmetry axis and the axis of the sphere center, and calculating the distance between a hole and the sphere center according to the coordinate value of the hole in the coordinate system; step two, taking the distance obtained in the step one as a radius, and obtaining an arc line on the spherical skin around the axis of the spherical center of the spherical skin, and obtaining an intersection point of the symmetrical axis and the arc line; calculating the distance from the intersection point of the symmetrical axis and the arc line to the hole; and step four, according to the distance determined in the step three, taking the intersection point as a circle center and the distance from the determined intersection point to the hole as a radius, obtaining another arc line on the spherical skin, wherein the intersection point of the another arc line and the arc line obtained in the step two is the position of the hole. And installing a rotating shaft by using the corresponding tool as an auxiliary marking tool, and converting the inoperable projection size into the operable surface size.
Description
Technical Field
The invention relates to a positioning method, in particular to a method for line repair and marking of a spherical skin hole.
Background
Currently, the Y8 series airplanes structurally have a spherical skin frame for mounting spherical skin; the spherical skin is provided with a plurality of system holes for passing various conduits and ropes. A plurality of system holes on the skin have the projection size from the horizontal and symmetrical axis of the airplane. When the system holes are manufactured, the projection size of the system holes needs to be converted into the surface size which can be operated by workers, so that the scribing operation can be carried out, and the subsequent skin hole opening operation is completed. The operation procedure is complicated and the efficiency is low.
Disclosure of Invention
The technical problems solved by the invention are as follows: the method for the line repair and the marking of the spherical skin hole is simple in process and high in efficiency.
The technical scheme of the invention is as follows: a method for marking a line on a spherical surface hole, wherein the coordinates of the hole under a coordinate system with a sphere center as an origin are known, and the method is characterized by comprising the following steps:
firstly, fixing the spherical skin according to the determined symmetry axis and the axis of the sphere center, and calculating the distance between a hole and the sphere center according to the coordinate value of the hole in the coordinate system;
step two, taking the distance obtained in the step one as a radius, and obtaining an arc line on the spherical skin around the axis of the spherical center of the spherical skin, and obtaining an intersection point of the symmetrical axis and the arc line;
calculating the distance from the intersection point of the symmetrical axis and the arc line to the hole;
and step four, according to the distance determined in the step three, taking the intersection point as a circle center and the distance from the determined intersection point to the hole as a radius, obtaining another arc line on the spherical skin, wherein the intersection point of the another arc line and the arc line obtained in the step two is the position of the hole.
As an improvement of the technical scheme, the spherical skin is fixed in a tool, and the tool is provided with a concave surface matched with the spherical skin.
As an improvement of the technical scheme, a reference line corresponding to the spherical skin is marked on the tool, the spherical skin is fixed in the tool according to the reference line, a rotating shaft with an axis coincident with an axis of the sphere center is further arranged on the tool, and a rotating sample plate matched with a concave surface of the spherical skin is fixed on the rotating shaft.
As an improvement of the technical scheme, after the distance between the center of the sphere and the hole is determined, a point with the same distance from the rotating shaft is determined on the arc surface of the rotating sample plate matched with the concave surface of the spherical skin, the rotating sample plate rotates around the rotating shaft, and the track of the point is the obtained arc.
The invention has the beneficial effects that: and installing a rotating shaft by using the corresponding tool as an auxiliary marking tool, and converting the inoperable projection size into the operable surface size. And the operation process is simple and the efficiency is high.
Drawings
FIG. 1 is a schematic view of a spherical skin;
FIG. 2 is a schematic drawing of a scribe line;
fig. 3 is a perspective view of the tool.
Detailed Description
The present invention is described in further detail below.
A method for marking a line on a spherical surface hole, wherein the coordinates of the hole under a coordinate system with a sphere center as an origin are known, and the method is characterized by comprising the following steps:
firstly, fixing the spherical skin according to the determined symmetry axis and the axis of the sphere center, and calculating the distance between a hole and the sphere center according to the coordinate value of the hole in the coordinate system;
step two, taking the distance obtained in the step one as a radius, and obtaining an arc line on the spherical skin around the axis of the spherical center of the spherical skin, and obtaining an intersection point of the symmetrical axis and the arc line;
calculating the distance from the intersection point of the symmetrical axis and the arc line to the hole;
and step four, according to the distance determined in the step three, taking the intersection point as a circle center and the distance from the determined intersection point to the hole as a radius, obtaining another arc line on the spherical skin, wherein the intersection point of the another arc line and the arc line obtained in the step two is the position of the hole.
The spherical covering is fixed in the tool, and the tool is provided with a concave surface matched with the spherical covering.
The tool is marked with a datum line corresponding to the spherical skin, the spherical skin is fixed in the tool according to the datum line, the tool is further provided with a rotating shaft, the axis of the rotating shaft coincides with the axis of the sphere center, and a rotating sample plate matched with the concave surface of the spherical skin is fixed on the rotating shaft.
After the distance between the center of the sphere and the hole is determined, a point with the same distance from the rotating shaft is determined on the arc surface of the rotating sample plate matched with the concave surface of the spherical skin, the rotating sample plate rotates around the rotating shaft, and the track of the point is the obtained arc.
As shown in fig. 1 and 2, wherein M, N are the planar projection dimensions from a symmetrical, horizontal reference line, respectively. The spherical skin 1 is fixed in a tool 5 through a determined symmetry axis and a determined sphere center axis, a rotating shaft 4 which is coincident with the sphere center axis is installed on the tool 5, and a rotating sample plate 3 which is matched with the concave surface of the spherical skin 1 is fixed on the rotating shaft 4; calculating the distance R between the hole and the center of the sphere according to the coordinate value M, N of the hole 2 in the coordinate system; according to a rotating sample plate 3 which is fixed on a rotating shaft 4 and matched with the concave surface of the spherical skin 1, drawing an arc with a distance R from a hole to the center of a sphere and an intersection point of the arc and a symmetrical axis on the spherical skin 1, and calculating a distance L from the intersection point to the hole 2; and a rotary sample plate 3 matched with the concave surface of the spherical skin 1 is fixed on the rotary shaft 4 by the circular arc, and the circular arcs with the distance R from the hole to the sphere center are marked on the spherical skin 1 to intersect to form an intersection point, so that the central point position of the hole 2 on the spherical skin 1 is obtained.
Claims (2)
1. A method for marking a line on a spherical surface hole, wherein the coordinates of the hole under a coordinate system with a sphere center as an origin are known, and the method is characterized by comprising the following steps:
firstly, fixing the spherical skin according to the determined symmetry axis and the axis of the sphere center, and calculating the distance between a hole and the sphere center according to the coordinate value of the hole in the coordinate system;
step two, taking the distance obtained in the step one as a radius, and obtaining an arc line on the spherical skin around the axis of the spherical center of the spherical skin, and obtaining an intersection point of the symmetrical axis and the arc line;
calculating the distance from the intersection point of the symmetrical axis and the arc line to the hole;
step four, according to the distance determined in the step three, taking the intersection point as the circle center and the distance from the determined intersection point to the hole as the radius, obtaining another arc line on the spherical skin, wherein the intersection point of the arc line and the arc line obtained in the step two is the position of the hole,
the spherical skin is fixed in the frock, and this frock is opened has the concave surface with spherical skin complex, marks the datum line that corresponds with spherical skin on the frock, and spherical skin fixes in the frock according to this datum line to still be provided with the pivot of axis and the coincidence of centre of sphere axis on the frock, be fixed with in the pivot with spherical skin concave surface complex rotatory model.
2. The method of claim 1, wherein the method comprises: after the distance between the center of the sphere and the hole is determined, a point with the same distance from the rotating shaft is determined on the arc surface of the rotating sample plate matched with the concave surface of the spherical skin, the rotating sample plate rotates around the rotating shaft, and the track of the point is the obtained arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610216893.2A CN107263429B (en) | 2016-04-08 | 2016-04-08 | Method for line repair and marking of spherical skin hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610216893.2A CN107263429B (en) | 2016-04-08 | 2016-04-08 | Method for line repair and marking of spherical skin hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107263429A CN107263429A (en) | 2017-10-20 |
| CN107263429B true CN107263429B (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610216893.2A Active CN107263429B (en) | 2016-04-08 | 2016-04-08 | Method for line repair and marking of spherical skin hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107263429B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146563B (en) * | 2021-03-12 | 2023-08-25 | 中国商用飞机有限责任公司 | Hole site marking tool and method for marking hole sites on assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2848813A (en) * | 1956-05-07 | 1958-08-26 | Richard R Kienle | Scriber and roller guide skin marker gage |
| CN102069457A (en) * | 2010-12-07 | 2011-05-25 | 成都飞机工业（集团）有限责任公司 | Self-centering positioning process equipment for fixing curved skin parts |
| CN103286767A (en) * | 2013-06-13 | 2013-09-11 | 沈阳飞机工业（集团）有限公司 | Drilling lineation method for skin part |
| CN103495636A (en) * | 2013-09-30 | 2014-01-08 | 中国航空工业集团公司北京航空制造工程研究所 | Method for skin stretch-forming and locating with flexible multipoint mould |
| CN105269049A (en) * | 2015-11-28 | 2016-01-27 | 沈阳飞机工业（集团）有限公司 | Allowance-free numerical-control method for aircraft skin |
-
2016
- 2016-04-08 CN CN201610216893.2A patent/CN107263429B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2848813A (en) * | 1956-05-07 | 1958-08-26 | Richard R Kienle | Scriber and roller guide skin marker gage |
| CN102069457A (en) * | 2010-12-07 | 2011-05-25 | 成都飞机工业（集团）有限责任公司 | Self-centering positioning process equipment for fixing curved skin parts |
| CN103286767A (en) * | 2013-06-13 | 2013-09-11 | 沈阳飞机工业（集团）有限公司 | Drilling lineation method for skin part |
| CN103495636A (en) * | 2013-09-30 | 2014-01-08 | 中国航空工业集团公司北京航空制造工程研究所 | Method for skin stretch-forming and locating with flexible multipoint mould |
| CN105269049A (en) * | 2015-11-28 | 2016-01-27 | 沈阳飞机工业（集团）有限公司 | Allowance-free numerical-control method for aircraft skin |
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| Publication number | Publication date |
|---|---|
| CN107263429A (en) | 2017-10-20 |
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Address after: 723213 Liulin Town, Chenggu County, Hanzhong City, Shaanxi Province Patentee after: Shaanxi Aircraft Industry Co.,Ltd. Address before: Box 34, Hanzhong City, Shaanxi Province, 723213 Patentee before: Shaanxi Aircraft INDUSTRY(GROUP) Co.,Ltd. |