CN108080753A - The electric discharge device and its processing method of endoporus microflute - Google Patents
The electric discharge device and its processing method of endoporus microflute Download PDFInfo
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- CN108080753A CN108080753A CN201810091726.9A CN201810091726A CN108080753A CN 108080753 A CN108080753 A CN 108080753A CN 201810091726 A CN201810091726 A CN 201810091726A CN 108080753 A CN108080753 A CN 108080753A
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- Prior art keywords
- endoporus
- microflute
- electrode
- tool
- discharge
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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
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
-
- 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
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/04—Electrodes specially adapted therefor or their manufacture
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/002—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using electric current
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The present invention provides a kind of electric discharge devices and its processing method of endoporus microflute, comprise the following steps:A, the shape according to needed for the internal face of workpieces processing endoporus, the tool-electrode of shape needed for selection；B, the tool-electrode is put into the endoporus of the workpiece, and micro- tip of the tool-electrode is contacted with the internal face of the endoporus of the workpiece；C, processed using spark discharge so that micro- tip of the tool-electrode is respectively formed a discharge channel and generates spark eroding, and forms the first microflute in the internal face of the endoporus.The discharge-treating method of endoporus microflute provided by the invention can go out required micro slot array structure in electro-discharge machining of inner hole of workpiece internal face, effectively improve the wearability of the internal face of inner hole of workpiece；And since all micro- tips are discharged simultaneously, integrally improved by ablation surface smoothness, machined surface roughness reduces, and effectively increases processing quality.
Description
Technical field
The invention belongs to microflute Discharge Processing Technology fields, are to be related to a kind of electric discharge of endoporus microflute to add more specifically
Frock is put and its processing method.
Background technology
At present, micromation, precise treatment, complication are the important development directions of current electronic product.In photoelectric communication, mold
Manufacture etc. is in many fields, and many vital parts usually have that quantity is more, more complicated endoporus.In order to improve in endoporus
The wearability of wall surface generally can process annular microflute in the internal face of endoporus.It is excessive yet with the quantity of endoporus, it be at this
The annular microflute of internal face processing of a little endoporus, general processing method are difficult to reach processing request.
Mainly realize that the internal face in endoporus processes annular using traditional diamond-making techniques such as vehicle, boring, brills in the prior art
Microflute, although can also realize that the internal face in endoporus processes annular microflute using this method, however require that manufacture is complicated high
Expensive vehicle clamper and dedicated tool, so as to cause production cost compared with high, low production efficiency, labor intensity is big, production security is poor
The problem of.
The content of the invention
It is existing to solve it is an object of the invention to provide a kind of electric discharge device and its processing method of endoporus microflute
In technology due to the annular microflute of inner hole of workpiece that is processed using vehicle, boring, the traditional diamond-making techniques such as brill there are production cost compared with
High, the technical issues of processing efficiency is low, processing quality is poor and labor intensity is big, and production security is poor.
To achieve the above object, the technical solution adopted by the present invention is：A kind of discharge-treating method of endoporus microflute is provided,
Comprise the following steps:
A, the shape according to needed for the internal face of the endoporus of workpieces processing, the tool-electrode of shape needed for selection；
B, the workpiece is connected with the tool-electrode with the two poles of the earth of the pulse power respectively, and by the tool-electrode
Micro- tip be put into the endoporus of the workpiece, and micro- tip of the tool-electrode and the internal face of the endoporus of the workpiece connect
It touches；
C, being processed using spark discharge so that micro- tip is respectively formed a discharge channel and generates spark eroding, and
The first microflute is formed in the internal face of the endoporus.
Further, it is further comprising the steps of before the step A：
A01, tool-electrode is fixed on fixture, the fixture is fixed on grinding machine, and the tool-electrode is with rotating speed
N2 rotates；Skive is rotated with rotating speed N1, and the axis of the rotation centerline of the skive and the tool-electrode
Line is parallel, and the skive processes one second with normal direction feeding depth ap in the discharge end parts of the tool-electrode
Microflute；
A02, after the processing of second microflute is completed, the skive along normal orientation retract it is default away from
From, the grinding machine tool-electrode is driven to continue to repeat to walk along after the axis direction axial feed distance a of the tool-electrode
The step of rapid A01；
A03, the step of step A01 and A02 is repeated, until the processing of the second microflute of number needed for completing.
Further, shape between two neighboring second microflute of the tool-electrode after the step A03 is machined
Into micro- tip.
Further, the cross section outer contour shape of second microflute is V-arrangement, trapezoidal or rectangle.
Further, second microflute includes bottom surface and the two sides being connected respectively with the both sides of the bottom surface, appoints
The angle formed between a side and the bottom surface of anticipating is 30 °~150 °, and the spacing formed between the two sides is 50
Micron~500 microns.
Further, the depth of second microflute is 50 microns~500 microns.
Further, in the step A01, the rotating speed N1 of the skive is 2000~3000 revs/min, the gold
The normal direction feed speed of hard rock emery wheel is 200~400mm/min.
Further, in the step A02, the tool-electrode along the tool-electrode axis direction axial feed away from
It it is 1 micron~3 microns from a.
The electric discharge device of endoporus microflute, including：
Tool-electrode, the tool-electrode include main part and be arranged at described main part one end for discharging
When stretch into the discharge end parts in the endoporus of workpiece, be along the circumferential direction equipped with multiple second microflutes on the outer wall of the discharge end parts,
Being put for contacting to be formed with the internal face of the endoporus in electric discharge for protrusion is formed between two neighboring second microflute
Micro- tip of electric channel；
And the pulse power, the two poles of the earth of the pulse power are respectively used to be electrically connected with the workpiece, the tool-electrode
It connects.
Further, the cross section outer contour shape of second microflute is V-arrangement, trapezoidal or rectangle.
The electric discharge device of endoporus microflute provided by the invention and its advantageous effect of processing method are：With existing skill
Art is compared,
(1), by using between two neighboring second microflute of tool-electrode formed protrusion be used for electric discharge when formed
Micro- tip of discharge channel, during the internal face of the endoporus of electrical discharge machining workpiece, tool-electrode is with workpiece multiple
More stable, uniform electric field is formed at micro- tip, multiple discharge channels can be formed simultaneously within a discharge time, it can
Go out required micro slot array structure in electro-discharge machining of inner hole of workpiece internal face, effectively improve inner hole of workpiece internal face it is resistance to
Mill property；And it since all micro- tips are discharged simultaneously, is integrally improved by ablation surface smoothness, reduces the coarse of finished surface
Degree, effectively increases processing quality and processing efficiency；
(2), tool-electrode of the invention is processed in a manner that skive is ground on discharge end parts outer wall
Go out the second microflute, it is high in machining efficiency, and skive repeats utilization, and it is at low cost, suitable for a variety of different rule of high-volume
The processing of the second microflute on the internal face of lattice endoporus is solved in the prior art due to using traditional processings sides such as vehicle, boring, brills
Method causes the technical issues of processing efficiency is low, processing quality is poor, cost is high and labor intensity is big, and production security is poor.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structure diagram in the preparation process for the tool-electrode that first embodiment of the invention provides；
Fig. 2 is the structure diagram of the electric discharge device for the endoporus microflute that first embodiment of the invention provides；
Fig. 3 is the structure diagram in the preparation process for the tool-electrode that second embodiment of the invention provides；
Fig. 4 is the structure diagram of the electric discharge device for the endoporus microflute that second embodiment of the invention provides.
Wherein, each reference numeral in figure：
10- tool-electrodes；11- main parts；12- discharge end parts；The second microflutes of 13-；20- skives；30- workpiece；
31- endoporus；40- fixtures；The 50- pulse powers；60- brushes；70- angular adjustment vices.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position
System is for only for ease of the description present invention and simplifies description rather than instruction or imply that signified device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
Embodiment 1
Also referring to Fig. 1 and Fig. 2, the discharge-treating method of the endoporus microflute now provided first embodiment of the invention into
Row explanation.The discharge-treating method of above-mentioned endoporus microflute, including step S10, S20, S30:
S10, the shape according to needed for the internal face of the endoporus 31 of workpieces processing 30, the tool-electrode of shape needed for selection
10。
S20, above-mentioned workpiece 30 is connected with the two poles of the earth of above-mentioned tool-electrode 10 respectively with the pulse power 50, and will be above-mentioned
Micro- tip of tool-electrode 10 is put into the endoporus 31 of above-mentioned workpiece 30, and micro- tip of above-mentioned tool-electrode 10 and above-mentioned workpiece
The internal face contact of 30 endoporus 31.
Specifically, as shown in Fig. 2, being provided with brush 60 on above-mentioned tool-electrode 10, above-mentioned brush 60 connects above-mentioned pulse
The cathode of power supply 50, above-mentioned workpiece 30 connect the anode of the above-mentioned pulse power 50.It should be noted that workpiece 30 and tool-electrode
10 are not limited thereto with the connection mode of the pulse power 50, such as in other preferred embodiments of the present invention, workpiece 30 can
To connect the anode of the pulse power 50, tool-electrode 10 can connect the cathode of the pulse power 50.
S30, processed using spark discharge so that above-mentioned micro- tip formation discharge channel generation spark eroding, and
The internal face of above-mentioned endoporus 31 forms the first microflute (not shown).
Wherein, since tool-electrode 10 and workpiece 30 can form more stable, uniform electric field at multiple micro- tips,
Multiple discharge channels can be formed simultaneously in discharge time, can be gone out in electro-discharge machining of inner hole of workpiece internal face required
Micro slot array structure, effectively improve the wearability of the internal face of inner hole of workpiece；And it since all micro- tips are discharged simultaneously, is eclipsed
Except surface smoothness integrally improves, the roughness of finished surface is reduced, effectively increases processing quality and processing efficiency.
Further, as shown in Figure 1, a kind of specific reality of the discharge-treating method as endoporus microflute provided by the invention
Mode is applied, step S11, S12, S13 are further included before above-mentioned steps S10：
S11, tool-electrode 10 being fixed on fixture 40, above-mentioned fixture 40 is fixed on grinding machine (not shown), and on
Tool-electrode 10 is stated to rotate with rotating speed N2；Skive 20 is rotated with rotating speed N1, and in the rotation of above-mentioned skive 20
Heart line is parallel with the axis of above-mentioned tool-electrode 10, and above-mentioned skive 20 is with normal direction feeding depth apIn above-mentioned tool-electrode
Second microflute 13 is processed in 10 discharge end parts 12.
In above-mentioned steps S11, the cutting face of skive 20 is vertical with the axis of above-mentioned tool-electrode 10.Above-mentioned fixture
40 be preferably three-jaw mill, one end of above-mentioned tool-electrode 10 is clamped by three-jaw mill, and above-mentioned tool-electrode 10 can
To realize rotary motion simultaneously.
Preferably, in above-mentioned steps S11, the rotating speed N1 of above-mentioned skive 20 is 2000~3000 revs/min, above-mentioned gold
The normal direction feed speed of hard rock emery wheel 20 is 200~400mm/min.
Preferably, in above-mentioned steps S11, the position that is contacted between above-mentioned skive 20 and above-mentioned discharge end parts 12
It is cooled down using water or cutting fluid, can effectively reduce the temperature of grinding.
S12, after the processing of above-mentioned second microflute 13 is completed, above-mentioned skive 20 is retracted pre- along normal orientation
If distance, above-mentioned grinding machine drives above-mentioned tool-electrode 10 along after the axis direction axial feed distance a of above-mentioned tool-electrode 10, after
Continuous the step of repeating step S11.
Wherein, in above-mentioned steps S12, above-mentioned pre-determined distance can be set according to actual needs, above-mentioned axial feed distance a
The distance between as two neighboring second microflute 13.Preferably, axis of the above-mentioned tool-electrode 10 along above-mentioned tool-electrode 10
Direction axial direction feeding distance a is 1 micron~3 microns.It should be noted that above-mentioned axial feed distance a is not limited thereto,
In other preferred embodiments of the present invention, above-mentioned axial feed distance a can also be set according to actual needs.Preferably, at this
In embodiment, above-mentioned axial feed distance a is to drive axis of the above-mentioned tool-electrode 10 along above-mentioned tool-electrode 10 by above-mentioned grinding machine
It moves to obtain in line direction, it should be noted that above-mentioned axial feed distance a can also be electric along above-mentioned instrument by skive 20
The axis direction of pole 10 moves axially to obtain.
S13, the step of step S11 and S12 is repeated, until the processing of the second microflute 13 of number needed for completing.
Further, as endoporus microflute provided by the invention discharge-treating method a kind of specific embodiment, on
It states and forms above-mentioned micro- tip between two neighboring above-mentioned second microflute 13 of the tool-electrode after step S13 is machined.
Further, as endoporus microflute provided by the invention discharge-treating method a kind of specific embodiment, by
In the first microflute on 31 internal face of endoporus of workpiece 30 cross section outer contour shape for V-arrangement, therefore, select tools electrode 10
On the second microflute 13 cross section outer contour shape be V-arrangement, it should be noted that the cross section foreign steamer of above-mentioned second microflute 13
Wide shape is not limited thereto, for example, in other preferred embodiments of the present invention, outside the cross section of above-mentioned second microflute 13
Contour shape can also be trapezoidal or rectangle etc..
Further, as endoporus microflute provided by the invention discharge-treating method a kind of specific embodiment, on
Stating the second microflute 13 includes bottom surface (not shown) and the two sides (not shown) being connected respectively with the both sides of above-mentioned bottom surface,
The angle formed between any one above-mentioned side and above-mentioned bottom surface is 30 °~150 °, and the spacing formed between above-mentioned two sides is
50 microns~500 microns.The angle formed between above-mentioned side and above-mentioned bottom surface can be 30 °, 45 °, 60 ° or 150 °.It is excellent
Choosing, the spacing formed between above-mentioned two sides can select according to actual needs 50 microns, 100 microns or other.
Further, as endoporus microflute provided by the invention discharge-treating method a kind of specific embodiment, on
The depth for stating the second microflute 13 is 50 microns~500 microns.Preferably, the depth of above-mentioned second microflute 13 can be according to actual need
Select 50 microns, 100 microns or other.
Further, as endoporus microflute provided by the invention discharge-treating method a kind of specific embodiment, on
The cross section outer contour shape of the bottom surface of the second microflute 13 is stated as circular arc, the radius of the circular arc is 5 microns~10 microns.
Further, as endoporus microflute provided by the invention discharge-treating method a kind of specific embodiment,
In the present embodiment 1, the endoporus 31 of above-mentioned workpiece 30 is cylinder, therefore the shape of the discharge end parts 12 of tool-electrode 10 is also circle
Cylindricality.It should be noted that the shape of above-mentioned discharge end parts 12 is not limited thereto, it can be according to the actual shape of the endoporus 31 of workpiece
Shape is set, for example, in other preferred embodiments of the present invention, above-mentioned discharge end parts 12 can also be cone or other shapes
Shape.
Further, as endoporus microflute provided by the invention discharge-treating method a kind of specific embodiment, on
Tool-electrode 10 is stated as red copper electrode or brass electrode.The diameter of above-mentioned tool-electrode 10 is more than 1 millimeter.Above-mentioned workpiece 30 can
Think workpiece made of the materials such as mould steel, hard alloy, titanium alloy.
Wherein, the discharge-treating method of endoporus microflute of the invention, compared with prior art,
(1), it is used for by using formation between two neighboring second microflute 13 of tool-electrode 10 is raised in electric discharge
Formed discharge channel micro- tip, during the internal face of the endoporus 31 of electrical discharge machining workpiece 30, tool-electrode 10 with
Workpiece 30 forms more stable, uniform electric field at multiple micro- tips, can be formed simultaneously within a discharge time multiple
Discharge channel can go out required micro slot array structure in electro-discharge machining of inner hole of workpiece internal face, effectively improve in workpiece
The wearability of the internal face in hole；And since all micro- tips are discharged simultaneously, integrally improved by ablation surface smoothness, it reduces and adds
The roughness on work surface, effectively increases processing quality and processing efficiency；
(2), tool-electrode of the invention is in a manner that skive 20 is ground on 12 outer wall of discharge end parts
The second microflute 13 is processed, it is high in machining efficiency, and the repeatable utilization of skive 20, it is at low cost, it is more suitable for high-volume
The processing of the second microflute on the inner wall of kind different size endoporus is solved in the prior art due to using tradition such as vehicle, boring, brills
Processing method causes that processing efficiency is low, processing quality is poor, cost is high and labor intensity is big, and the technology of production security difference is asked
Topic.
As shown in Fig. 2, the present invention also provides a kind of device for the discharge-treating method for being used to implement endoporus microflute, bags
It includes：Tool-electrode 10, above-mentioned tool-electrode 10 include main part 11 and be arranged at 11 one end of aforementioned body portion for putting
The discharge end parts 12 in the endoporus 31 of workpiece 30 are stretched into when electric, are along the circumferential direction equipped on the outer wall of above-mentioned discharge end parts 12 multiple
Second microflute 13, be formed between two neighboring above-mentioned second microflute 13 protrusion be used in electric discharge in above-mentioned endoporus 31
Wall surface contacts the micro- tip to form discharge channel；And the pulse power 50, the two poles of the earth of the above-mentioned pulse power 50 are respectively used to and institute
State workpiece, tool-electrode electrical connection.
Specifically, in the present embodiment 1, the anode of the pulse power 50 with workpiece 30 for being electrically connected, above-mentioned pulse
The cathode of power supply 50 is electrically connected with above-mentioned tool-electrode 10.It should be noted that workpiece 30 and tool-electrode 10 and the pulse power
50 connection mode is not limited thereto, such as in other preferred embodiments of the present invention, workpiece 30 can connect pulse electricity
Anode, the tool-electrode 10 in source 50 can connect the cathode of the pulse power 50.
Further, as endoporus microflute provided by the invention electric discharge device a kind of specific embodiment, on
The cross section outer contour shape of the second microflute 13 is stated as V-arrangement, trapezoidal or rectangle.
Further, as endoporus microflute provided by the invention electric discharge device a kind of specific embodiment, on
It states and brush 60 is provided on tool-electrode 10, above-mentioned brush 60 connects the cathode of the above-mentioned pulse power 50, and above-mentioned workpiece 30 connects
The anode of the above-mentioned pulse power 50.
Further, as endoporus microflute provided by the invention electric discharge device a kind of specific embodiment, phase
The distance between adjacent two second microflutes 13 are 1 micron~3 microns.
Further, as endoporus microflute provided by the invention electric discharge device a kind of specific embodiment, on
Stating the second microflute 13 includes bottom surface (not shown) and the two sides (not shown) being connected respectively with the both sides of above-mentioned bottom surface,
The angle formed between any one above-mentioned side and above-mentioned bottom surface is 30 °~150 °, and the spacing formed between above-mentioned two sides is
50 microns~500 microns.The angle formed between above-mentioned side and above-mentioned bottom surface can be 30 °, 45 °, 60 ° or 150 °.It is excellent
Choosing, the spacing formed between above-mentioned two sides can select according to actual needs 50 microns, 100 microns or other.
Further, as endoporus microflute provided by the invention electric discharge device a kind of specific embodiment, on
The depth for stating the second microflute 13 is 50 microns~500 microns.Preferably, the depth of above-mentioned second microflute 13 can be according to actual need
Select 50 microns, 100 microns or other.
Further, as endoporus microflute provided by the invention electric discharge device a kind of specific embodiment, on
The cross section outer contour shape of the bottom surface of the second microflute 13 is stated as circular arc, the radius of the circular arc is 5 microns~10 microns.
Further, as endoporus microflute provided by the invention electric discharge device a kind of specific embodiment, on
Discharge end parts 12 are stated as cylinder, it should be noted that the shape of above-mentioned discharge end parts 12 is not limited thereto, can be according to workpiece
Endoporus 31 true form set, for example, the present invention other preferred embodiments in, above-mentioned discharge end parts 12 can also be
Cone or other shapes.
Further, as endoporus microflute provided by the invention electric discharge device a kind of specific embodiment, on
Tool-electrode 10 is stated as red copper electrode or brass electrode.The diameter of above-mentioned tool-electrode 10 is more than 1 millimeter.Above-mentioned workpiece 30 can
Think workpiece made of the materials such as mould steel, hard alloy, titanium alloy.
Embodiment 2
Also referring to Fig. 3 and Fig. 4, the electric discharge device of the endoporus microflute now provided second embodiment of the invention into
Row explanation.The concrete structure of the electric discharge device of endoporus microflute in this implementation 2 and the electric discharge of the endoporus microflute of embodiment 1 add
The concrete structure that frock is put is essentially identical, except that：
In the present embodiment 2, the endoporus 31 of above-mentioned workpiece 30 is conical, corresponding, the electric discharge of above-mentioned tool-electrode 10
End 12 is cone.
The discharge-treating method of the endoporus microflute of the present embodiment 2 and the discharge-treating method with the endoporus microflute of embodiment 1
It is essentially identical, except that：
In step s 11, the present embodiment 2 is that tool-electrode 10 is fixed on fixture 40, and above-mentioned fixture 40 is fixed on angle
Degree is adjusted on vice 70, and above-mentioned angular adjustment vice 70 is fixed on grinding machine, so that during machining tool electrode,
The cutting face of above-mentioned skive 20 and the axis out of plumb of above-mentioned tool-electrode 10, so that second processed is micro-
Slot 13 has certain gradient, and angular adjustment vice 70 can adjusting angle angle value according to actual needs.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. the discharge-treating method of endoporus microflute, it is characterised in that：Comprise the following steps:
A, the shape according to needed for the internal face of the endoporus of workpieces processing, the tool-electrode of shape needed for selection；
B, the workpiece is connected with the tool-electrode with the two poles of the earth of the pulse power respectively, and by the micro- of the tool-electrode
Tip is put into the endoporus of the workpiece, and micro- tip of the tool-electrode is contacted with the internal face of the endoporus of the workpiece；
C, being processed using spark discharge so that micro- tip forms discharge channel and generates spark eroding, and described interior
The internal face in hole forms the first microflute.
2. the discharge-treating method of endoporus microflute as described in claim 1, it is characterised in that：It is also wrapped before the step A
Include following steps：
A01, tool-electrode is fixed on fixture, the fixture is fixed on grinding machine, and the tool-electrode is revolved with rotating speed N2
Turn；Skive is rotated with rotating speed N1, and the rotation centerline of the skive and the axis of the tool-electrode are put down
Row, the skive is with normal direction feeding depth apProcessed in the discharge end parts of the tool-electrode one it is second micro-
Slot；
A02, after the processing of second microflute is completed, the skive retracts pre-determined distance along normal orientation,
The grinding machine drives the tool-electrode to continue to repeat step along after the axis direction axial feed distance a of the tool-electrode
The step of A01；
A03, the step of step A01 and A02 is repeated, until the processing of the second microflute of number needed for completing.
3. the discharge-treating method of endoporus microflute as claimed in claim 2, it is characterised in that：The step A03 is machined
Micro- tip is formed between two neighboring second microflute of tool-electrode afterwards.
4. the discharge-treating method of endoporus microflute as claimed in claim 2, it is characterised in that：The cross section of second microflute
Outer contour shape is V-arrangement, trapezoidal or rectangle.
5. the discharge-treating method of endoporus microflute as claimed in claim 2, it is characterised in that：Second microflute includes bottom surface
And the two sides being connected respectively with the both sides of the bottom surface, the angle formed between any one side and the bottom surface are
30 °~150 °, the spacing formed between the two sides is 50 microns~500 microns.
6. the discharge-treating method of endoporus microflute as claimed in claim 2, it is characterised in that：The depth of second microflute is
50 microns~500 microns.
7. such as the discharge-treating method of claim 2-6 any one of them endoporus microflutes, it is characterised in that：The step A01
In, the rotating speed N1 of the skive is 2000~3000 revs/min, and the normal direction feed speed of the skive is 200
~400mm/min.
8. such as the discharge-treating method of claim 2-6 any one of them endoporus microflutes, it is characterised in that：The step A02
In, the axis direction axial feed distance a of the tool-electrode along the tool-electrode is 1 micron~3 microns.
9. the electric discharge device of endoporus microflute, it is characterised in that：Including：
Tool-electrode, the tool-electrode include main part and be arranged at described main part one end be used for electric discharge when stretch
Enter the discharge end parts in the endoporus of workpiece, multiple second microflutes are along the circumferential direction equipped on the outer wall of the discharge end parts, it is adjacent
Leading to for contacting to be formed to discharge with the internal face of the endoporus in electric discharge for protrusion is formed between two second microflutes
Micro- tip in road；
And the pulse power, the two poles of the earth of the pulse power are respectively used to be electrically connected with the workpiece, the tool-electrode.
10. the electric discharge device of endoporus microflute as claimed in claim 9, it is characterised in that：Second microflute it is transversal
Face outer contour shape is V-arrangement, trapezoidal or rectangle.
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