CN110355819B - Hole making method for skin and skeleton connecting structure - Google Patents
Hole making method for skin and skeleton connecting structure Download PDFInfo
- Publication number
- CN110355819B CN110355819B CN201910528340.4A CN201910528340A CN110355819B CN 110355819 B CN110355819 B CN 110355819B CN 201910528340 A CN201910528340 A CN 201910528340A CN 110355819 B CN110355819 B CN 110355819B
- Authority
- CN
- China
- Prior art keywords
- glass cloth
- hole
- skin
- sample plate
- cloth sample
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/0006—Means for guiding the cutter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a hole making method for a skin and skeleton connecting structure, and belongs to the technical field of assembly. The method comprises the following steps: 1) manufacturing a glass cloth sample plate; 2) marking theoretical hole sites on the glass cloth sample plate; 3) positioning the glass cloth sample plate; 4) projecting the actual skeleton position on the glass cloth sample plate; 5) marking hole position adjustment amount; 6) positioning the skin and the glass cloth sample plate; 7) hole position adjustment line drawing; 8) and (3) putting the glass cloth sample plate on a lower frame, positioning a covering on a molding frame, and drawing lines and making holes according to actual hole positions. According to the invention, the actual positions of the skeleton parts can be reflected by utilizing the light transmittance, the inextensibility and the fitting property of the glass cloth, the hole site adjustment amount is determined according to the relation between the actual positions of the parts and the theoretical hole site, the accurate adjustment of skin hole sites along with the positions of the skeleton is realized, the parts scrapping caused by hole site deviation is avoided, a large amount of opening and closing work of the clamping plates is reduced, and the hole making efficiency of a closed area is improved.
Description
Technical Field
The invention relates to a hole making method for an aircraft connecting piece, in particular to a hole making method for a skin and skeleton connecting structure.
Background
The structural member connection in the aircraft assembly process is mainly mechanical connection, and the position precision and the surface quality of the connection hole have important influence on the service life and the safety of the aircraft. A large number of skin and skeleton connecting structures exist in airplane assembly, and under the condition that a drill jig is not provided, the skin and skeleton connecting structures are usually drilled by manual marking, and the specific method comprises the following steps: a standing position clamping plate of a framework part is arranged on the assembly fixture, and the framework part is positioned and connected according to the position of the clamping plate; and after the skin is positioned on the assembly fixture, drawing lines on the skin according to the position of the clamping plate, and drilling holes for matching the skin and the framework. The hole making method has the following problems: 1. when a line is drawn, the skeleton part is invisible, the relative position of the skin and the skeleton is uncertain, and if the skeleton part has position deviation during installation, hole site deviation can be generated, so that the part is scrapped; 2. a large number of clamping plates need to be added on the fixture, so that the manufacturing cost of the fixture is improved, the openness of the fixture is reduced, and the operability is poor; 3. operating personnel need the switching cardboard many times when the setting-out, and work efficiency is low, and intensity of labour is big.
In the prior art, in order to improve the marking precision, a hole position is determined on a skin part in a projection mode. For example, the publication number is CN103286767A, the publication date is 09 and 11 in 2013, and the patent is a patent granted by chinese invention named as "a method for drilling and scribing a skin part", and the technical scheme is as follows: a drilling and marking method for a skin part comprises the following steps: 1) projecting the outer edge line of the skin part and the center point of each hole on a reference plane along the direction of the reference plane according to the size; 2) drawing the projection points on a steel plate with the thickness of 3-5mm in a ratio of 1: 1; 3) drilling light through holes on projection points of the holes; drilling light through holes which are arranged at equal intervals at the position of the projection outer edge line; 4) positioning the skin part on a forming die, and then placing a steel plate above the skin part; 5) irradiating the steel plate by using parallel rays, and enabling the centers of light spots formed by light through holes on the projection outer edge line to fall on the outer edge of the skin part; 6) and marking the center position of a light spot on the skin part by using a marking pen, thus finishing marking work. The marking method improves the precision and efficiency of marking of the hole position of the skin part, improves the production efficiency of the skin part and realizes the interchangeability of the skin part.
The above patent uses a steel plate as an auxiliary member for marking, and needs to drill a hole on a projection point of a skin part forming mold, and then project light transmitted through a light through hole to the skin part to mark the center of a light spot. The invention has the following defects: firstly, the skeleton may shift during the forming and bonding processes, after the final scribing hole site is formed on the skin part, the hole site adjustment cannot be performed according to the actual position of the skeleton when the skin and the skeleton are connected and assembled, which may cause the skin part to be unusable and scrapped; secondly, certain deviation can be generated when the skin part is projected on the steel plate, and the steel plate is transparent after drilling, so that deviation can be generated again due to the problem of drilling precision, and the accumulation of the deviation can cause that the final scribing precision on the skin part is not high; finally, the steel plate can not be used for multiple times, the scribing cost is also improved, the scribing time is prolonged by the process of drilling on the steel plate, and the hole site scribing efficiency is reduced.
Disclosure of Invention
The hole making method of the skin and framework connecting structure can realize accurate adjustment of hole positions along with the position of the framework, avoid part scrapping caused by hole position deviation, and improve the hole making efficiency of a closed area.
The purpose of the invention is realized by the following technical scheme:
1. a hole making method for a skin and skeleton connecting structure is characterized by comprising the following steps:
1) manufacturing a glass cloth sample plate: according to the actual shape and size of the skin, glass cloth is adopted to manufacture a glass cloth sample plate with the same size and shape as the skin;
2) drilling theoretical hole sites: marking theoretical hole sites on the glass cloth sample plate, and drilling primary holes on the theoretical hole sites;
3) positioning a glass cloth sample plate: positioning and connecting the framework part on the assembly fixture, and attaching and fixing the glass cloth template on the assembly fixture;
4) and (3) projection of the skeleton position: vertically irradiating the glass cloth sample plate by adopting a visible light source, and projecting the actual position of the framework part on the glass cloth sample plate;
5) hole site adjustment amount marking: marking the adjustment amount of the hole site axis on the glass cloth sample plate according to the relation between the actual position of the framework part and the theoretical hole site;
6) positioning a skin and a glass cloth sample plate: taking down the glass cloth sample plate, positioning a skin on the assembly fixture, and covering the glass cloth sample plate on the skin for positioning;
7) hole position adjustment line drawing: marking a mark on the skin of a theoretical hole position on the glass cloth sample plate, and marking an adjusted actual hole position on the skin according to the hole position adjustment amount;
8) and finishing hole making.
Further, the method for identifying the theoretical hole site in step 2) specifically comprises: acquiring the digital theoretical appearance of the skin and the three-dimensional coordinates of hole sites on the skin by CATIA V5 software, inputting the hole site data into a three-dimensional laser projection system, and projecting a theoretical hole site map on a glass cloth sample plate by using a laser projector.
Further, the diameter of the initial hole in the step 2) is smaller than the theoretical hole diameter, and the initial hole is only used for drawing lines on the skin.
Further, the glass cloth is EW-100 glass cloth.
The beneficial effects of this technical scheme are as follows:
1. according to the invention, the glass cloth is adopted to manufacture the sample plate, the actual position of the framework part is reflected by utilizing the light transmittance and the inextensibility of the glass cloth, the hole site adjustment amount is determined according to the relation between the actual position of the framework part and the theoretical hole site, the accurate adjustment of the hole site along with the position of the framework is realized, the part scrapping caused by hole site deviation in the assembly process of the framework and the skin part is avoided, and the hole manufacturing efficiency is improved.
2. The glass cloth sample plate is low in cost and can be used repeatedly, replacement is not needed under the normal use condition, compared with drilling on a steel plate, drilling on the glass cloth is easier, time is saved, the glass cloth can be completely attached to the surface of a skin, and deviation or small deviation caused by drilling precision and shadow projection cannot be generated.
Drawings
The foregoing and following detailed description of the invention will be apparent when read in conjunction with the following drawings, in which:
FIG. 1 is an exemplary architecture for practicing the present invention;
FIG. 2 is a graph showing the relationship between the theoretical hole site and the actual hole site on the glass cloth sample plate of the present invention;
FIG. 3 is a flow chart of an implementation of the present invention;
in the figure:
1. skin, 2, skeleton parts, 3, a glass cloth sample plate, 4, theoretical hole sites, and 5, actual hole sites.
Detailed Description
The technical solutions for achieving the objects of the present invention are further illustrated by the following specific examples, and it should be noted that the technical solutions claimed in the present invention include, but are not limited to, the following examples.
Example 1
Fig. 1 shows a typical structure applied to the hole making method of the present invention, which includes a skin 1 and a skeleton member 2. The embodiment discloses a hole making method for a skin and skeleton connecting structure, which comprises the following steps of:
1) manufacturing a glass cloth sample plate 3: according to the actual shape and size of the skin 1, a glass cloth sample plate 3 with the same size and shape as the skin 1 is made of glass cloth;
2) and 4, drilling a theoretical hole site: marking a theoretical hole position 4 on the glass cloth sample plate 3, and drilling a primary hole on the theoretical hole position 4;
3) positioning of the glass cloth sample plate 3: positioning and connecting the framework part 2 on the assembly jig, and attaching and fixing the glass cloth template 3 on the assembly jig;
4) and (3) projection of the skeleton position: a visible light source is adopted to vertically irradiate the glass cloth sample plate 3, the actual position of the framework part 2 is projected on the glass cloth sample plate 3, and the actual position of the framework part 2 is shown as a dotted line in figure 2;
5) hole site adjustment amount marking: marking the adjustment amount of the hole site axis on the glass cloth sample plate 3 according to the relation between the actual position of the framework part 2 and the theoretical hole site 4;
6) positioning of a skin 1 and a glass cloth sample plate 3: taking off the glass cloth sample plate 3, positioning the skin 1 on the assembly jig, and covering the glass cloth sample plate 3 on the skin 1 for positioning;
7) hole position adjustment line drawing: marking a theoretical hole site 4 on the glass cloth sample plate 3 on the skin 1, and marking an adjusted actual hole site 5 on the skin 1 according to the hole site adjustment amount;
8) and finishing hole making.
In this embodiment, adopt glass cloth to make the model, utilize the light transmissivity and the inextensibility of glass cloth, reflect the actual position of skeleton part, confirm the hole site adjustment volume according to the relation of skeleton part actual position and theoretical hole site, realize the accurate adjustment of hole site along with the skeleton position, avoided in skeleton and the covering assembling process because the part that the hole site deviation caused is scrapped, improved system hole efficiency.
Example 2
A hole making method for a skin and skeleton connecting structure specifically comprises the following steps:
1) according to the actual shape and size of the skin 1, a glass cloth sample plate 3 with the same size and shape as the skin 1 is made of glass cloth, and preferably, the glass cloth is EW-100 glass cloth;
2) marking a theoretical hole position 4 on the glass cloth sample plate 3, and drilling a primary hole, wherein the diameter of the primary hole is smaller than that of the theoretical hole and is only used for drawing a line on the skin 1; the method comprises the steps of positioning a glass cloth sample plate 3 on a tool by adopting a laser projection technology on site, aligning the spatial position of the glass cloth sample plate 3 by using a target point on the tool, acquiring the digital theoretical appearance of a skin 1 and the three-dimensional coordinates of a hole site on the skin 1 by using CATIA V5 software, inputting the hole site data to a three-dimensional laser projection system, and projecting a theoretical hole site 4 diagram on the glass cloth sample plate 3 by using a laser projector;
3) positioning and connecting the framework part 2 on the assembly jig, and attaching and fixing the glass cloth template 3 on the assembly jig; because the framework part 2 and the glass cloth sample plate 3 are completely attached, under the condition of good verticality of a light source, the hole position deviation is +/-1 mm;
4) vertically irradiating the glass cloth sample plate 3 by adopting a visible light source, and projecting the actual position of the framework part 2 on the glass cloth sample plate 3;
5) marking the adjustment amount of the hole site axis on the glass cloth sample plate 3 according to the relation between the actual position of the framework part 2 and the theoretical hole site 4;
6) taking off the glass cloth sample plate 3, positioning the skin 1 on the assembly jig, and covering the glass cloth sample plate 3 on the skin 1 for positioning;
7) marking a theoretical hole site 4 on the glass cloth sample plate 3 on the skin 1, and marking an adjusted actual hole site 5 on the skin 1 according to the hole site adjustment amount;
8) and finishing hole making.
In the embodiment, the glass cloth sample plate is low in cost and can be used repeatedly, the glass cloth sample plate does not need to be replaced under the normal use condition, compared with the glass cloth sample plate with holes drilled in a steel plate, the glass cloth sample plate is easier to drill holes and saves time, the glass cloth sample plate can be completely attached to the surface of a skin, and deviation or small deviation caused by drilling precision and shadow projection cannot be generated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (4)
1. A hole making method for a skin and skeleton connecting structure is characterized by comprising the following steps:
1) manufacturing a glass cloth sample plate (3): according to the actual shape and size of the skin (1), a glass cloth sample plate (3) with the same size and shape as the skin (1) is made of glass cloth;
2) drilling a theoretical hole site (4): marking a theoretical hole position (4) on the glass cloth sample plate (3), and drilling a primary hole on the theoretical hole position (4);
3) positioning a glass cloth sample plate (3): positioning and connecting the framework part (2) on the assembly jig, and attaching and fixing the glass cloth template (3) on the assembly jig;
4) and (3) projection of the skeleton position: vertically irradiating the glass cloth sample plate (3) by adopting a visible light source, and projecting the actual position of the framework part (2) on the glass cloth sample plate (3);
5) hole site adjustment amount marking: marking the adjustment amount of the hole site axis on the glass cloth sample plate (3) according to the relation between the actual position of the framework part (2) and the theoretical hole site (4);
6) the method comprises the following steps of (1) positioning a skin and a glass cloth sample plate: taking down the glass cloth sample plate (3), positioning the skin (1) on the assembly jig, and covering the glass cloth sample plate (3) on the skin (1) for positioning;
7) hole position adjustment line drawing: marking a theoretical hole site (4) on the glass cloth sample plate (3) on the skin (1) by a line, and marking an adjusted actual hole site (5) on the skin (1) according to the hole site adjustment amount;
8) and finishing hole making.
2. The hole making method for the skin-skeleton connection structure according to claim 1, wherein the identification method for the theoretical hole site (4) in the step 2) specifically comprises: acquiring the digital theoretical appearance of the skin (1) and the three-dimensional coordinates of hole positions on the skin (1) by CATIA V5 software, inputting the hole position data into a three-dimensional laser projection system, and projecting a theoretical hole position (4) diagram on a glass cloth sample plate (3) by using a laser projector.
3. A method for making holes in a skin-skeleton joint structure according to claim 1, wherein the diameter of the primary holes in the step 2) is smaller than the theoretical hole diameter, and the primary holes are only used for drawing lines on the skin (1).
4. A method of making a hole in a skin to carcass joint according to claim 1 wherein said glass cloth is EW-100 glass cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528340.4A CN110355819B (en) | 2019-06-18 | 2019-06-18 | Hole making method for skin and skeleton connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528340.4A CN110355819B (en) | 2019-06-18 | 2019-06-18 | Hole making method for skin and skeleton connecting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110355819A CN110355819A (en) | 2019-10-22 |
| CN110355819B true CN110355819B (en) | 2021-11-30 |
Family
ID=68216389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910528340.4A Active CN110355819B (en) | 2019-06-18 | 2019-06-18 | Hole making method for skin and skeleton connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110355819B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611689A (en) * | 2019-11-18 | 2021-04-06 | 健研检测集团有限公司 | Device and method for checking deviation of screen mesh |
| CN112935349B (en) * | 2019-12-10 | 2022-12-09 | 中航贵州飞机有限责任公司 | Method for machining accurate lead hole on skin of training machine |
| CN111421856A (en) * | 2020-03-30 | 2020-07-17 | 成都飞机工业（集团）有限责任公司 | Flexible hole-making sample plate with profile and manufacturing and using methods thereof |
| CN111531202B (en) * | 2020-05-12 | 2021-09-03 | 航天特种材料及工艺技术研究所 | Positioning method and machining method of aircraft skin assembly hole |
| CN111811424B (en) * | 2020-06-12 | 2022-04-19 | 陕西飞机工业（集团）有限公司 | Equipment based on laser projection technology and auxiliary hole making method |
| CN112372924B (en) * | 2020-10-14 | 2021-11-16 | 东风汽车集团有限公司 | Hole making method of foaming sandwich structure |
| CN112784450B (en) * | 2020-10-27 | 2022-07-15 | 成都飞机工业（集团）有限责任公司 | Method for extracting outer edge line of maximum part of die based on finite element theory |
| CN113263206B (en) * | 2021-05-19 | 2023-08-04 | 中航西安飞机工业集团股份有限公司 | Alignment method for hole position of hole making outside closed space |
| CN116727723A (en) * | 2023-08-11 | 2023-09-12 | 成都飞机工业（集团）有限责任公司 | Method for realizing automatic hole making of aircraft part skin pre-connection hole |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658378A (en) * | 2012-05-22 | 2012-09-12 | 西安飞机工业（集团）有限责任公司 | Drilling method for wall plate skin of airplane |
| CN108858115A (en) * | 2018-08-30 | 2018-11-23 | 中国第汽车股份有限公司 | A kind of automobile body-in-white technique tie point Exact Location Method and positioning templet production method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7195429B2 (en) * | 2003-10-20 | 2007-03-27 | The Boeing Company | Drill template with integral vacuum attach |
| CN200999095Y (en) * | 2007-01-30 | 2008-01-02 | 谭水柱 | Local expansion sample plate for airplane production |
| CN103286767B (en) * | 2013-06-13 | 2015-09-09 | 沈阳飞机工业（集团）有限公司 | A kind of layout for drilling method of skin part |
| CN104972282A (en) * | 2015-07-15 | 2015-10-14 | 江西洪都航空工业集团有限责任公司 | Method for machining aircraft skin part |
-
2019
- 2019-06-18 CN CN201910528340.4A patent/CN110355819B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658378A (en) * | 2012-05-22 | 2012-09-12 | 西安飞机工业（集团）有限责任公司 | Drilling method for wall plate skin of airplane |
| CN108858115A (en) * | 2018-08-30 | 2018-11-23 | 中国第汽车股份有限公司 | A kind of automobile body-in-white technique tie point Exact Location Method and positioning templet production method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110355819A (en) | 2019-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110355819B (en) | Hole making method for skin and skeleton connecting structure | |
| US20230142673A1 (en) | Optimization of layup process for fabrication of wind turbine blades using model-based optical projection system | |
| CN110886186A (en) | BIM technology-based manufacturing and installation construction method for complex space curved surface special-shaped steel box girder | |
| CN106903663B (en) | A kind of positioning and marking method, the apparatus and system of the built-in part of revolving shell | |
| CN106181260A (en) | A kind of processing method of chemical milling template | |
| CN101458731B (en) | Computer simulation assembling method for steel structure assembly | |
| US20060293776A1 (en) | Determination of a model of a geometry of a metal sheet forming stage | |
| CN102660741A (en) | Numeric control processing method for single-curvature-degree coating chemically-milling sample plate | |
| CN112548979B (en) | Marking method for melon petal chemical milling sample plate | |
| CN109176120B (en) | Hoisting auxiliary positioning device | |
| CN105382491A (en) | Machining, manufacturing and inspection method of arc-shaped steel pipe column | |
| CN112588956B (en) | Method for forming double-curved-surface skin opening frame | |
| CN110877673B (en) | Method for preassembling short pipe at ship segmented curved plate | |
| CN113335553A (en) | Airplane assembling and positioning method based on three-dimensional laser projection | |
| CN111168171A (en) | Chemical milling method for superplastic forming/diffusion connection part | |
| CN107009611B (en) | A kind of coordinate transformation method of part repair process defect model | |
| CN114541773A (en) | Curved surface metal curtain wall installation and appearance monitoring method based on BIM technology | |
| CN111560614B (en) | Combined chemical milling sample plate and processing method thereof | |
| CN210939094U (en) | Installation frock that fender was fixed a position fast | |
| CN105798870A (en) | Hole-opening method of curved panel | |
| CN204975957U (en) | Alignment installation mechanism that no benchmark was inserted among auto panel die | |
| CN210704788U (en) | Skin contour marking tool | |
| CN115431129B (en) | Auxiliary device for repairing allowance of flap parts | |
| CN116238160A (en) | Coating and routing process after skin weakening | |
| CN216503047U (en) | Magnetic paste for marking welding spot position |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |