CN103231134B - A kind of electrolysis electric spark sutting machining device of non-conducting material and method - Google Patents
A kind of electrolysis electric spark sutting machining device of non-conducting material and method Download PDFInfo
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- CN103231134B CN103231134B CN201310167032.6A CN201310167032A CN103231134B CN 103231134 B CN103231134 B CN 103231134B CN 201310167032 A CN201310167032 A CN 201310167032A CN 103231134 B CN103231134 B CN 103231134B
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Abstract
The present invention relates to a kind of electrolysis electric spark sutting machining device and method of non-conducting material, it is characterized in that: the electrolysis electric spark sutting machining device of non-conducting material comprises one to fill electrolyte working groove for the main shaft of fixation workpiece, some guide wheels, a wire electrode, an auxiliary electrode and; Before to work pieces process, first insulation processing is carried out to wire electrode, namely immerse wire electrode near surface generation electrochemical reaction in electrolyte and electrolysis spark discharge phenomenon and on wire electrode surface attachment one layer insulating rapidly; Along with the linear reciprocating motion of wire electrode, be worn away instantaneously and electrolysis spark discharge occurs with the insulating barrier of the wire electrode of absorption surface, the instantaneous high-temperature that electrolysis spark discharge produces and percussion remove workpiece material; Main shaft continues to drive workpiece to do feed motion with constant speed to wire electrode, until complete the cutting processing to workpiece.The present invention can be widely used in various being comparatively altogether unjustifiable in the processing of conductive material.
Description
Technical field
The present invention relates to a kind of wire electric discharge machine and method, particularly about a kind of electrolysis electric spark sutting machining device and method of non-conducting material.
Background technology
The non-conducting materials such as quartz, glass and pottery have the performances such as wear-resisting, high temperature resistant, corrosion-resistant and good heat shock resistance, have been widely used in the fields such as MEMS, microfluid system, biomedicine and Aero-Space.But these materials have hard fragility usually, and non-conductive, so be difficult to carry out cutting processing by traditional machine cut method and conventional Wire-cut Electrical Discharge Machining technology to it.
At present, the cutting method of domestic and international non-conducting material mainly contains the methods such as Carborundum wheel cutting, laser cutting, plasma-torch cutting, Abrasive Water Jet Machining, auxiliary electrode Wire EDM and the cutting of electrolysis electric spark recombination line.
Diamond-cutting methodology cost is high, and easily occurs crackle.Laser cutting, plasma-torch cutting and abrasive water jet cutting method all exist that machining accuracy is low, and surface roughness is high, the problem that processing thickness is little.Auxiliary electrode electric spark wire cutting method is as auxiliary electrode using insulating ceramics surface coverage layer of conductive material, the heat that disruptive discharge generation occurs between metal electric polar filament and auxiliary electrode in kerosene is utilized to remove a kind of processing method of insulating ceramics, the necessary condition that the method is carried out is kerosene decomposes Formed and covers insulating ceramics surface, this process is uncontrollable, therefore be difficult to ensure stable processing, working (machining) efficiency is low.Electrolysis electric spark combined machining method is the EDM Technology of the insulating materials that research is more at present, and this technology utilizes spark discharge process in electrolyte to carry out removal processing to workpiece material.Electrolyte is generally sodium hydroxide solution, sodium nitrate solution or sodium chloride solution.The key of this technology forms complete gas membrane by cell reaction on wire electrode surface, wire electrode and electrolyte are kept apart, then gas breakdown film under the effect of voltage, flashing discharges, and instantaneous high-temperature when utilizing spark discharge and percussion remove workpiece material.This traditional processing method can the thickness critical constraints of processing work because the wire electrode length participating in processing is longer, gas membrane needs the area of the wire electrode of parcel larger, is more not easy the gas membrane that generation is complete.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of electrolysis electric spark sutting machining device and method of non-conducting material.
For achieving the above object, the present invention takes following technical scheme: a kind of electrolysis electric spark sutting machining device of non-conducting material, is characterized in that: it comprises one to fill electrolyte working groove for the main shaft of fixation workpiece, some guide wheels, a wire electrode, an auxiliary electrode and; Described wire electrode connects external power source negative pole by outside Wire-conveying mechanism of quick walk, and described wire electrode wherein one section be located in described electrolyte by described guide wheel leaching; Described auxiliary electrode leaching is located in described electrolyte, and one end of described auxiliary electrode connects external power source positive pole.
Described electrolyte is aluminum nitrate solution.
Described wire electrode is molybdenum filament or steel wire.
The material of described auxiliary electrode is stainless steel.
Described wire electrode is for being horizontally disposed with or vertically arranging.
Adopt the electrolysis wire electric discharge machine method of a kind of non-conducting material of described device, it comprises the following steps: 1) main shaft drives workpiece to do feed motion with constant speed to wire electrode, and wire electrode does linear reciprocating motion under the drive of outside Wire-conveying mechanism of quick walk and the guide effect of guide wheel; 2) apply direct current or pulse voltage to wire electrode and auxiliary electrode, wire electrode and auxiliary electrode form loop by electrolyte under the direct current of applying or the effect of pulse voltage; 3) immerse wire electrode near surface generation electrochemical reaction in electrolyte and electrolysis spark discharge phenomenon and on wire electrode surface attachment one layer insulating rapidly; 4) along with the linear reciprocating motion of wire electrode, be worn away instantaneously and electrolysis spark discharge occurs with the insulating barrier of the wire electrode of absorption surface, the instantaneous high-temperature that electrolysis spark discharge produces and percussion remove workpiece material; 5) main shaft continues to drive workpiece to do feed motion with constant speed to wire electrode, until complete the cutting processing to workpiece.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is owing to adding man-hour to workpiece, main shaft drives workpiece to do feed motion with constant speed to wire electrode, wire electrode does linear reciprocating motion under the drive of outside Wire-conveying mechanism of quick walk and the guide effect of guide wheel, direct current or pulse voltage is applied to wire electrode and auxiliary electrode, wire electrode and auxiliary electrode form loop by electrolyte under the direct current of applying or the effect of pulse voltage, immerse wire electrode near surface generation electrochemical reaction in electrolyte and electrolysis spark discharge phenomenon and on wire electrode surface attachment one layer insulating rapidly, along with the linear reciprocating motion of wire electrode, be worn away instantaneously with the insulating barrier of the wire electrode of absorption surface and electrolysis spark discharge occurs, the instantaneous high-temperature that electrolysis spark discharge produces and percussion remove workpiece material, main shaft continues to drive workpiece to do feed motion with constant speed to wire electrode, until complete the cutting processing to workpiece, therefore the present invention more easily forms complete gas membrane in relative small space, increase the maximum length of the wire electrode participating in cutting, thus obviously increase the thickness of institute's energy processing work.2, the present invention is owing to immersing in electrolyte the wire electrode near surface generation electrochemical reaction and electrolysis spark discharge phenomenon that participate in processing, and adhere to a layer insulating rapidly on wire electrode surface, this insulating layer material is aluminium oxide, it is high temperature resistant and corrosive nature good, and therefore the present invention can ensure wire electrode stable existence in process.3, the present invention can carry out in the same apparatus due to the process to wire electrode insulation processing and the process to workpiece, and therefore the present invention can simplified apparatus, reduces costs.Based on above advantage, the present invention can be widely used in various being comparatively altogether unjustifiable in the processing of conductive material.
Accompanying drawing explanation
Fig. 1 is the structural representation of electrolysis Wire-cut Electrical Discharge Machining of the present invention
Fig. 2 is the partial enlarged drawing of A in Fig. 1
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, electrolysis electric spark sutting machining device of the present invention comprises one to fill electrolyte 3 working groove 7 for main shaft 1, two guide wheel 4, wire electrode 5, auxiliary electrode 6 and of fixation workpiece 2.Wherein, wire electrode 5 connects external power source negative pole by outside Wire-conveying mechanism of quick walk (not shown), and under wherein one section of support at two guide wheels 4 of wire electrode 5 and guide effect, level leaching is located in electrolyte 3.Auxiliary electrode 6 leaching is located in electrolyte 3, and one end of auxiliary electrode 6 connects external power source positive pole.Wire electrode 5 forms loop when being connected external power source by electrolyte 3 with auxiliary electrode 6.
In a preferred embodiment, electrolyte 3 is aluminum nitrate solution.
In a preferred embodiment, wire electrode 5 is molybdenum filament or steel wire.
In a preferred embodiment, the material of auxiliary electrode 6 is stainless steel.
In a preferred embodiment, wire electrode 5 also vertically can be soaked by guide wheel 4 and be located in electrolyte 3, to rely on the structure of existing lathe, makes the manufacture of lathe more convenient.
As shown in Figure 2, wire electrode 5 and auxiliary electrode 6, can at wire electrode 5 Surface Creation one layer insulatings 8 by electrochemical reaction and electrolysis spark discharge when being connected external power source.
According to electrolysis electric spark sutting machining device provided by the invention, the invention allows for a kind of electrolysis wire electric discharge machine method of non-conducting material, it comprises the following steps:
1, main shaft 1 drives workpiece 2 to do feed motion with constant speed to wire electrode 5, and wire electrode 5 does high speed linear reciprocating motion under the drive of outside Wire-conveying mechanism of quick walk and the guide effect of guide wheel 4.
2, by outside Wire-conveying mechanism of quick walk, apply direct current or pulse voltage to wire electrode 5 and auxiliary electrode 6, wire electrode 5 and auxiliary electrode 6 form loop by electrolyte 3 under the direct current of applying or the effect of pulse voltage.
3, immerse the wire electrode 5 near surface generation electrochemical reaction in electrolyte 3 and electrolysis spark discharge phenomenon, and adhere to a layer insulating 8 rapidly on wire electrode 5 surface.
4, when workpiece 2 contacts with wire electrode 5, along with the high speed linear reciprocating motion of wire electrode 5, the insulating barrier 8 of the wire electrode 5 contacted with workpiece 2 is worn away instantaneously and electrolysis spark discharge occurs.
5, electrolysis spark discharge produce instantaneous high-temperature and percussion remove workpiece material.
6, main shaft 1 continues to drive workpiece 2 to do feed motion with constant speed to wire electrode, until complete the cutting to workpiece 2.
The various embodiments described above are only for illustration of the present invention; wherein the structure of each parts, connected mode and each implementation step etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (8)
1. an electrolysis electric spark sutting machining device for non-conducting material, is characterized in that: it comprises one to fill electrolyte working groove for the main shaft of fixation workpiece, some guide wheels, a wire electrode, an auxiliary electrode and; Described wire electrode connects external power source negative pole by outside Wire-conveying mechanism of quick walk, and described wire electrode wherein one section be located in described electrolyte by described guide wheel leaching, described workpiece with soak the wire electrode be located in described electrolyte and contact; Described auxiliary electrode leaching is located in described electrolyte, and one end of described auxiliary electrode connects external power source positive pole, described wire electrode is connected external power source with auxiliary electrode, by electrochemical reaction and electrolysis spark discharge at described wire electrode Surface Creation one layer insulating, described insulating layer material is aluminium oxide; Described wire electrode is vertically arrange.
2. the electrolysis electric spark sutting machining device of a kind of non-conducting material as claimed in claim 1, is characterized in that: described electrolyte is aluminum nitrate solution.
3. the electrolysis electric spark sutting machining device of a kind of non-conducting material as described in any one of claim 1 ~ 2, is characterized in that: described wire electrode is molybdenum filament or steel wire.
4. the electrolysis electric spark sutting machining device of a kind of non-conducting material as described in any one of claim 1 ~ 2, is characterized in that: the material of described auxiliary electrode is stainless steel.
5. the electrolysis electric spark sutting machining device of a kind of non-conducting material as described in any one of claim 1 ~ 2, is characterized in that: described wire electrode is for being horizontally disposed with.
6. adopt an electrolysis wire electric discharge machine method for the non-conducting material of device as described in any one of Claims 1 to 5, it comprises the following steps:
1) main shaft drives workpiece to do feed motion with constant speed to wire electrode, and wire electrode does linear reciprocating motion under the drive of outside Wire-conveying mechanism of quick walk and the guide effect of guide wheel;
2) apply direct current or pulse voltage to wire electrode and auxiliary electrode, wire electrode and auxiliary electrode form loop by electrolyte under the direct current of applying or the effect of pulse voltage;
3) immerse wire electrode near surface generation electrochemical reaction in electrolyte and electrolysis spark discharge phenomenon and on wire electrode surface attachment one layer insulating rapidly, insulating layer material is aluminium oxide;
4) along with the linear reciprocating motion of wire electrode, be worn away instantaneously and electrolysis spark discharge occurs with the insulating barrier of the wire electrode of absorption surface, the instantaneous high-temperature that electrolysis spark discharge produces and percussion remove workpiece material;
5) main shaft continues to drive workpiece to do feed motion with constant speed to wire electrode, until complete the cutting processing to workpiece.
7. the electrolysis wire electric discharge machine method of a kind of non-conducting material as claimed in claim 6, is characterized in that: described step 1) described in wire electrode be molybdenum filament or steel wire.
8. the electrolysis wire electric discharge machine method of a kind of non-conducting material as described in any one of claim 6 ~ 7, is characterized in that: described step 2) described in auxiliary electrode be stainless steel, described electrolyte is aluminum nitrate solution.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108080756A (en) * | 2017-11-24 | 2018-05-29 | 西安工业大学 | A kind of cutting method of conductor material |
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| CN103920948A (en) * | 2014-03-12 | 2014-07-16 | 江南大学 | Device and method for controllable gas-film micro-electrochemical discharge wire-cutting processing |
| CN103920952A (en) * | 2014-05-05 | 2014-07-16 | 江南大学 | Variable thickness electrochemical discharge wire cutting machining device |
| CN105033373B (en) * | 2015-07-01 | 2017-11-28 | 西安理工大学 | The ultrasonic electric combined cutting device and cutting method of SiC single crystal piece |
| JP6859223B2 (en) * | 2017-07-24 | 2021-04-14 | 株式会社Ｓｏｋｅｎ | Manufacturing method of laminated electrode body |
| CN109865907B (en) * | 2019-04-12 | 2024-05-28 | 南京宁庆数控机床制造有限公司 | Electrolytic machining machine tool |
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| TWI357841B (en) * | 2008-08-14 | 2012-02-11 | Ind Tech Res Inst | Method and apparatus for feed control of wire cutt |
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