CN105149710B - A kind of preparation method for the electrode and integral honeycomb being used for honeycomb processing - Google Patents
A kind of preparation method for the electrode and integral honeycomb being used for honeycomb processing Download PDFInfo
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- CN105149710B CN105149710B CN201510629548.7A CN201510629548A CN105149710B CN 105149710 B CN105149710 B CN 105149710B CN 201510629548 A CN201510629548 A CN 201510629548A CN 105149710 B CN105149710 B CN 105149710B
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- electrode
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- honeycomb
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H2200/00—Specific machining processes or workpieces
- B23H2200/30—Specific machining processes or workpieces for making honeycomb structures
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- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The present invention discloses a kind of preparation method for the electrode and integral honeycomb being used for honeycomb processing, keeps the scheme for being connected on overall processing honeycomb seal structure on product annular inner wall using electric spark shaping mill accomplished.The electrode is detachable electrode, including clamping handle, main electrode and locking member, is locked by the locking member after the mounting hole that clamping handle bottom is stretched out on main motor.The Design Orientation face in main electrode, it is ensured that when processing, directly electrode is used to carry out centering to workpiece.Using the electrode by spark machined mode can directly on product annular inner wall overall processing honeycomb seal structure, and the honeycomb processing in entire inner mold face can be completed after clamped one time.
Description
Technical field
A kind of method for carrying out honeycomb preparation the present invention relates to electrode and using the electrode.
Background technology
Aero-engine obturaged frequently with structures such as honeycombs, when by reducing turbine rotor blade work and stator
Turbine efficiency is improved in gap.On the preparation means of honeycomb, whole prepare and the modes such as parts processing reality may be used
It is existing.The common honeycomb of domestic air mail engine as first processes honeycomb annulus at present, is then welded with the method for soldering,
Also monoblock cast can be carried out in product cast sections.
But when operating temperature is higher, fission is brazed cellular method, and there are the hidden danger of desoldering；And in product inner wall using whole
Body casts cellular process, has larger difficulty, cost higher the hot investment casting of superthin structure.
Invention content
In view of this, the present invention provides a kind of preparation method for the electrode and integral honeycomb being used for honeycomb processing, using this
Electrode can by spark machined mode directly on product annular inner wall overall processing honeycomb seal structure, and suitable for ultra-thin
The Precision Machining of structure.
The described electrode for honeycomb processing includes：Clamping handle, main electrode and locking member；The clamping handle bottom is stretched out
It is locked by the locking member after mounting hole in main electrode.
The working face of the main electrode is arc surface, and electrode cores lattice are machined on the working face；In the main electrode
There are three positioning surfaces for design, wherein the face opposite with the working face is positioning surface A, on main electrode both sides of the face, edge and institute
It states the connected one end positioning surface A and is machined with l shaped incision respectively, the l shaped incision is formed by two faces, with the positioning surface
Face vertical A is positioning surface.
As a kind of preferred embodiment of the present invention, core compartment on the main electrode working face is away from for 0.2mm-0.4mm.
As a kind of preferred embodiment of the present invention, the mating surface of the clamping handle and main motor upper installing hole is inverted cone surface.
As a kind of preferred embodiment of the present invention, the main electrode both sides of the face increase with working face connected component edge
Add the surplus of 0.1-0.3mm.
The preparation method of the integral honeycomb is, using electric spark shaping mill in workpiece inner mold face overall processing honeycomb knot
Structure, workpiece inner mold face are annular surface, circumferentially respectively workpiece inner mold face.
Electrode on the electric spark shaping mill is detachable electrode, and the working face of the electrode is to be matched with workpiece inner mold face
Arc surface, and its arc length and workpiece inner mold face divide equally after each arc length of equal portions it is consistent；The work of the electrode
Electrode cores lattice are machined on face；It is provided with the center of circle for centering workpiece and the positioning surface of reference plane on the electrode simultaneously.
When processing honeycomb, the center of circle using the positioning surface centering workpiece on electrode and reference plane, then by electrode
Working face workpiece inner mold face upper edge it is suitable/molding mode of counterclockwise feeding completes the processing in entire inner mold face.
Advantageous effect：
(1) the Design Orientation face in main electrode, it is ensured that when processing, directly electrode is used to carry out centering to workpiece；Main electrode
Core compartment be arranged 0.2 or more gap, it is ensured that galvanic corrosion product is smoothly discharged.The electrode of this kind of structure type can effectively solve the problem that
The problems such as electrode clamping, workpiece centering, precision controlling and chip removal are handled when honeycomb is processed.
(2) use the electrode by spark machined mode can directly on product annular inner wall overall processing honeycomb seal
Structure, and the honeycomb processing in entire inner mold face can be completed after clamped one time；Wherein honeycomb core lattice width can be as small as 1mm, honeycomb
Core lattice seamed edge thickness can be as thin as 0.1mm, be suitable for the Precision Machining of superthin structure.
Description of the drawings
Fig. 1 is the overall structure diagram of the electrode；
Fig. 2 is the schematic diagram of centering reference plane designed in main electrode；
Fig. 3 is the structural schematic diagram of electrode cores lattice.
Wherein：1- clamping handles, 2- main electrodes, 3- locking members, 4- working faces, 5- positioning surface A, 6- positioning surface B, 7- positioning surfaces
C
Specific implementation mode
The present invention will now be described in detail with reference to the accompanying drawings and examples.
It is obturaged with integral honeycomb the present embodiment provides a kind of electrode for honeycomb processing and using the electrode
Preparation method makes accomplished using the scheme of electric spark shaping mill overall processing honeycomb seal structure.
The electrode is split structure, including：Clamping handle 1, main electrode 2 and locking member 3, as shown in Figure 1.Wherein clamping handle
1 is that can solve the problems, such as that Split type electric is extremely rigid insufficient using rod-like structure made of stainless steel.It stretches the bottom of clamping handle 1
Go out after the mounting hole of 2 upper and lower end face of main motor and is locked by locking member 3.To eliminate position gap, clamping handle 1 and main motor
The mating surface of 2 upper installing holes is inverted cone surface, i.e. diameter of the mounting hole in the cross section of 2 upper surface of main motor is more than in main motor
The diameter of the cross section of 2 lower faces.
The structure of main electrode 2 is as shown in Fig. 2, its working face 4 (face with work piece match) is arc surface, in its working face 4
It is upper to use slow wire feeding cutting mode machined electrode core lattice, be conducive to the accuracy of manufacture for improving electrode.Core compartment, can away from 0.3mm
Influence of the cumulative errors to core lattice size is reduced, while being conducive to chip removal, it is ensured that galvanic corrosion product is smoothly discharged.Working face 4 powers on
The arrangement of pole piece lattice is as shown in Figure 3.
In order to be convenient for centering to position during actual processing, there are three positioning surfaces for design in the main electrode 2, such as scheme
Shown in 2.Wherein the face opposite with working face 4 is positioning surface A5, on 2 left and right sides end face of main electrode, edge and positioning surface A5 phases
One end even is machined with l shaped incision respectively, and l shaped incision is formed by two faces, and the face vertical with positioning surface A5 is positioning surface；
Positioning surface B6 and positioning surface C7 are respectively formed on the left and right sides of main electrode 2 as a result,.
To reduce since the conical surface error of working face 4 is influenced caused by adjacent machining area core lattice integrality, in main electricity
2 left and right sides end face of pole increases by the surplus of 0.1-0.3mm with 4 connected component edge of working face, thus 2 left and right sides of main electrode
End face is outward inclined-plane with 4 connected component of working face.
When processing honeycomb on the annular inner mold face of workpiece, the inner mold face of workpiece is along the circumferential direction divided into first
Eight equal parts or ten deciles, used electrode should ensure that every after the arc length of main electrode working face 4 is divided equally with workpiece inner mold face
The arc length of a equal portions is consistent.Using the center of circle and reference plane of three positioning surface centering workpiece on electrode (in the present embodiment
The reference plane of the workpiece is end face thereon), it is then that the working face 4 of main electrode 2 is square clockwise in the inner mold face upper edge of workpiece
To the molding mode of feeding, it can ensure that electrode clamped one time completes the processing in entire inner mold face.
Engine turbine rotor blade can be improved by processing honeycomb directly on matrix by spark machined mode
Functional reliability, while ensureing that overall performance is constant.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (4)
1. a kind of electrode for honeycomb processing, which is characterized in that including：Clamping handle (1), main electrode (2) and locking member (3)；
It is locked by the locking member (3) after stretching out the mounting hole in main electrode (2) clamping handle (1) bottom；
The working face (4) of the main electrode (2) is arc surface, and electrode cores lattice are machined on the working face (4)；The main electricity
There are three positioning surfaces for design on pole (2), wherein the face opposite with the working face (4) is positioning surface A (5), in main electrode (2) two
On side end face, it is machined with l shaped incision respectively along the one end being connected with the positioning surface A (5), two l shaped incisions are formed
Two faces vertical with positioning surface A (5) be positioning surface, be respectively formed positioning at left and right sides of main electrode (2) as a result,
Face B (6) and positioning surface C (7)；When processing honeycomb on the annular inner mold face of workpiece, three positioning on electrode (2) are utilized
The center of circle of face centering workpiece and reference plane；
Core compartment on main electrode (2) working face (4) is away from for 0.2mm-0.4mm；Main electrode (2) both sides of the face and institute
State the surplus that working face (4) connected component edge increases by 0.1-0.3mm.
2. the electrode for honeycomb processing as described in claim 1, which is characterized in that the clamping handle (1) and main electrode (2)
The mating surface of upper installing hole is inverted cone surface.
3. the electrode for honeycomb processing as described in claim 1, which is characterized in that the clamping handle (1) is stainless steel
Matter.
4. a kind of preparation method of integral honeycomb, which is characterized in that using electric spark shaping mill in workpiece inner mold face overall processing
Honeycomb, workpiece inner mold face are annular surface, circumferentially respectively workpiece inner mold face；
Electrode on the electric spark shaping mill is the electrode described in claim 1 for honeycomb processing, which is fission
Formula electrode, the working face of the electrode be with the matched arc surface in workpiece inner mold face, and its arc length is divided equally with workpiece inner mold face
The arc length of each equal portions is consistent afterwards；Electrode cores lattice are machined on the working face of the electrode；It is provided on the electrode simultaneously
For the center of circle of centering workpiece and the positioning surface of reference plane；
When processing honeycomb, the center of circle using the positioning surface centering workpiece on electrode and reference plane, then by the work of electrode
Face workpiece inner mold face upper edge it is suitable/molding mode of counterclockwise feeding completes the processing in entire inner mold face.
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| CN201510629548.7A CN105149710B (en) | 2015-09-28 | 2015-09-28 | A kind of preparation method for the electrode and integral honeycomb being used for honeycomb processing |
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| CN201510629548.7A CN105149710B (en) | 2015-09-28 | 2015-09-28 | A kind of preparation method for the electrode and integral honeycomb being used for honeycomb processing |
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| CN105149710B true CN105149710B (en) | 2018-08-10 |
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| CN109317769B (en) * | 2018-11-30 | 2021-03-02 | 中国航发沈阳黎明航空发动机有限责任公司 | Device and method for processing honeycomb by electric spark |
| CN111482773B (en) * | 2020-04-24 | 2021-03-09 | 中国空气动力研究与发展中心超高速空气动力研究所 | Processing method of array electrode device for manufacturing honeycomb device |
| CN111397834B (en) * | 2020-04-24 | 2021-06-01 | 中国空气动力研究与发展中心超高速空气动力研究所 | Processing method of large-caliber hypersonic wind tunnel honeycomb device |
| CN112222544B (en) * | 2020-08-31 | 2021-11-26 | 中国航发南方工业有限公司 | Efficient machining electrode of honeycomb sealing ring and design method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6448530B1 (en) * | 1998-05-11 | 2002-09-10 | Denso Corporation | Metal mold for molding a honeycomb structure and method of producing the same |
| JP4153157B2 (en) * | 2000-12-07 | 2008-09-17 | 日本碍子株式会社 | Electric discharge machining electrode for manufacturing hexagonal cell honeycomb extrusion mold and method for manufacturing hexagonal cell honeycomb extrusion mold using the electrode |
| EP2174740A1 (en) * | 2008-10-08 | 2010-04-14 | Siemens Aktiengesellschaft | Honeycomb seal and method to produce it |
| CN101716698B (en) * | 2009-11-26 | 2012-07-04 | 东方电气集团东方汽轮机有限公司 | Method for machining steam turbine honeycomb seal with electric sparks |
| CN201895150U (en) * | 2010-09-21 | 2011-07-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrode assembly for electric spark grinding and processing of inner and outer honeycomb ring |
| CN102407392B (en) * | 2010-09-21 | 2013-09-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrical discharge grinding machining method of overlapped-type double-layer inner-outside honeycomb ring |
| CN201889565U (en) * | 2010-10-20 | 2011-07-06 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrode of electric spark cellular grinder used for shaping |
| JP2012125883A (en) * | 2010-12-15 | 2012-07-05 | Ngk Insulators Ltd | Manufacturing method of electrode for honeycomb structure forming die |
| US20130139386A1 (en) * | 2011-12-06 | 2013-06-06 | General Electric Company | Honeycomb construction for abradable angel wing |
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