CN1112279C - Method for machining cellular flexible structure material - Google Patents
Method for machining cellular flexible structure material Download PDFInfo
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- CN1112279C CN1112279C CN 01135679 CN01135679A CN1112279C CN 1112279 C CN1112279 C CN 1112279C CN 01135679 CN01135679 CN 01135679 CN 01135679 A CN01135679 A CN 01135679A CN 1112279 C CN1112279 C CN 1112279C
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- flexible structure
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- honeycomb
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Abstract
The present invention discloses a processing method for honeycomb class flexible structure materials. The present invention has the following steps: honeycomb class flexible structure materials are vertically placed on a magnetic material clamping platform with an induction coil; magnetic materials are uniformly injected into the honeycombs of the honeycomb class flexible structure materials, and nonmagnetic materials are added to the magnetic materials; the induction coil on the magnetic material clamping platform is switched on, and the magnetic materials are processed according to technological requirements. The present invention provides a clamping platform technology for processing honeycomb class flexible structure materials at a high speed on the basis of strong magnetic fields and the friction adsorption principle. The present invention has the advantages of simple required equipment, simple and easy operation on preparatory work and subsequent cleaning work, effective assurance for processing precision and high work efficiency. Meanwhile, workers' labor intensity is lowered. As a processing method for high efficient honeycomb class composite materials, the present invention can be widely popularized and applied in the field of aviation.
Description
Technical field
The present invention relates to a kind of processing method of cellular flexible structure material.
Background technology
In aircraft manufacturing, the application of composite is increasingly extensive.Honeycomb has in light weight as a kind of composite, machine direction intensity advantages of higher, thereby obtained widely using at aviation field.Abroad these critical process and frock technology that are related to new material application and concrete manufacturing are kept secret, we also are difficult to obtain such core manufacturing technology from technical literature, patent or investigating abroad at present.Therefore, how to solve the clamping location and the processing problems of puzzled China aviation manufacturing field honeycomb class composite for many years, for the lead time that shortens new model, quickening model typing production paces have great importance and are worth.
At present, carrying out strict secrecy provision aspect the honeycomb processing technology abroad, we have no way of finding out about it for technology that they adopted and technology.The method of thread gluing and adhesive is mainly adopted in honeycomb clamping location at home, operating efficiency is low, labor strength is big, and honeycomb is subjected to the effect of Milling Force easily and produces horizontal distortion (vertical fibers direction) in process, has finally influenced machining accuracy.
Summary of the invention
The present invention proposes a kind of processing method of cellular flexible structure material.
Its step is: 1) cellular flexible structure material vertically is placed on the magnetic material clamping platform that has induction coil, 2) in the honeycomb of cellular flexible structure material, evenly pour into magnetic material, on magnetic material, add one deck nonmagnetic substance then, 3) induction coil on the conducting clamping platform can be processed according to technological requirement.
The present invention proposes a kind of cellular flexible structure material High-speed machining clamping platform technology based on high-intensity magnetic field and friction absorption principle, this method equipment needed thereby is simple, from preparation still is that follow-up cleaning work is all simple, can effectively guarantee machining accuracy, operating efficiency improves greatly, also reduces working strength of workers simultaneously.As a kind of processing method of the class of honeycomb efficiently composite, can be in the aviation field wide popularization and application.
Description of drawings
Fig. 1 is the work schematic diagram of the processing method of cellular flexible structure material;
Fig. 2 is the fundamental diagram of the processing method of cellular flexible structure material;
Fig. 3 is the iron powder unit force diagram of the processing method of cellular flexible structure material;
Fig. 4 is the honeycomb wall force diagram of the processing method of cellular flexible structure material.
The specific embodiment
Brand-new design (or utilizing an existing) cover clamping platform (ferromagnetic material) is provided with induction coil on the clamping platform, produce the magnetic field of parallel fibers direction during work, and the magnetization iron powder makes iron powder produce downward thrust (can control).Honeycomb is required to be positioned on the platform according to clamping, then an amount of iron powder is evenly poured in the honeycomb, the maximum height of magnetic material pours into one deck aluminium powder then less than the minimum machined surface of workpiece on iron powder.By magnetic field alternation several times, iron powder is produced the effect of compacting.On iron powder, pour into the material that one deck can effectively be isolated magnetic field then again.At this moment in the honeycomb stress of iron powder as figure (3) shown in.Honeycomb will firmly be fixed honeycomb parts to be processed by the frictional force that produces between magnetization iron powder post in each hexahedron and the honeycomb sidewall under the effect of high-intensity magnetic field power.The magnetic field intensity of induction coil reduces with the increase that pours into the magnetic material height.
In the honeycomb Milling Processes, honeycomb wall is stressed shown in figure (4).F wherein
PressHoneycomb wall is produced downward pressure.F
ShearThen honeycomb is produced a moment of torsion, the formed precision last to honeycomb has adverse effect.
We make its tension force that produces horizontal direction (vertical fibers direction) by pressure of effect on iron powder just, honeycomb wall is formed normal pressure, and then pass through (frictional force+F on honeycomb wall
Press) moment that produced reaches and F
ShearThe moment that produces balances each other.Finally reach workpiece and keep stable purpose in process, the operation principle schematic diagram is shown in figure (1,2).
F shown in figure (3,4)
Electromagnetism: electromagnetic force G: iron powder deadweight K
0: material coefficient L (f): calculating pressure is put the distance of the strong point
Assumed condition: suppose the honeycomb quality very I to ignore
Choose a cellular unit cross section, force analysis as figure (3) shown in,
We are from the analysis of single honeycomb wall and single iron powder unit:
The iron powder cell cube:
DF
Tension force=d (F
Electromagnetism+ G) * K
0
DF
Sassafras rubs=μ dF
Tension force
DM
Sassafras rubs=dF
Sassafras rubs* L (f
Sassafras rubs)
The honeycomb wall unit:
The suffered frictional force in frictional force that honeycomb wall is suffered and iron powder unit is active force and reaction force each other.
M
Wall=[∫ dM
Friction+ F
Press* L (F
Press)]-M
Shear
Wherein, F
Tension force=(F
Electromagnetism+ G) * K
0, F
Electromagnetism=F (I),
By above discussion as can be known: by control current strength (I), inject the stressed relation that iron powder height (path of integration) can be controlled honeycomb wall integral body, when
The time, what honeycomb can the holding position is stable, and the distortion of horizontal direction (vertical fibers direction) simultaneously also can effectively suppress, the final machining accuracy that effectively guarantees.
Claims (5)
1. the processing method of a cellular flexible structure material, the step that it is characterized in that it is: 1) cellular flexible structure material vertically is placed on the magnetic material clamping platform that has induction coil, 2) in the honeycomb of cellular flexible structure material, evenly pour into magnetic material, on magnetic material, add one deck nonmagnetic substance then, 3) induction coil on the conducting clamping platform can be processed according to technological requirement.
2. the processing method of a kind of cellular flexible structure material according to claim 1 is characterized in that the magnetic field intensity of said induction coil reduces with the increase that pours into the magnetic material height.
3. the processing method of a kind of cellular flexible structure material according to claim 1 is characterized in that said magnetic material is an iron powder.
4. the processing method of a kind of cellular flexible structure material according to claim 1 is characterized in that said nonmagnetic substance is an aluminium powder.
5. the processing method of a kind of cellular flexible structure material according to claim 1, the maximum height that it is characterized in that said magnetic material is less than the minimum machined surface of workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01135679 CN1112279C (en) | 2001-10-18 | 2001-10-18 | Method for machining cellular flexible structure material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01135679 CN1112279C (en) | 2001-10-18 | 2001-10-18 | Method for machining cellular flexible structure material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1346730A CN1346730A (en) | 2002-05-01 |
| CN1112279C true CN1112279C (en) | 2003-06-25 |
Family
ID=4673256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01135679 Expired - Fee Related CN1112279C (en) | 2001-10-18 | 2001-10-18 | Method for machining cellular flexible structure material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1112279C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349695C (en) * | 2005-07-21 | 2007-11-21 | 浙江大学 | Method and device for measuring milling force for honeycomb type flexible material |
| CN101372006B (en) * | 2008-09-16 | 2011-12-07 | 浙江大学 | Automatic separation device of paper honeycomb flexible material borings and ferrous powder granules |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386138B (en) * | 2008-09-16 | 2010-04-21 | 浙江大学 | Automatic filling system for filling the ferrous powder in honeycomb flexible material |
| CN102266973B (en) * | 2011-07-20 | 2013-03-20 | 沈阳飞机工业（集团）有限公司 | Machining method for milling two curved surfaces of tapered honeycomb variable-thickness structural part |
| CN104400452A (en) * | 2014-10-31 | 2015-03-11 | 沈阳黎明航空发动机(集团)有限责任公司 | High-temperature alloy honeycomb part milling processing clamping method |
| CN105643318B (en) * | 2014-11-14 | 2018-09-07 | 江西昌河航空工业有限公司 | A kind of cellular material machine installation clamping method |
| CN107234862A (en) * | 2016-03-29 | 2017-10-10 | 成都飞机工业（集团）有限责任公司 | A kind of holding method of honeycomb core |
| CN113894583A (en) * | 2021-10-13 | 2022-01-07 | 大连海事大学 | Flexible supporting and clamping method and device for inner wall of honeycomb material |
-
2001
- 2001-10-18 CN CN 01135679 patent/CN1112279C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349695C (en) * | 2005-07-21 | 2007-11-21 | 浙江大学 | Method and device for measuring milling force for honeycomb type flexible material |
| CN101372006B (en) * | 2008-09-16 | 2011-12-07 | 浙江大学 | Automatic separation device of paper honeycomb flexible material borings and ferrous powder granules |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1346730A (en) | 2002-05-01 |
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Granted publication date: 20030625 Termination date: 20101018 |