CN101161390A - Non-conducting material spark milling electrode tip - Google Patents
Non-conducting material spark milling electrode tip Download PDFInfo
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- CN101161390A CN101161390A CNA2007101149210A CN200710114921A CN101161390A CN 101161390 A CN101161390 A CN 101161390A CN A2007101149210 A CNA2007101149210 A CN A2007101149210A CN 200710114921 A CN200710114921 A CN 200710114921A CN 101161390 A CN101161390 A CN 101161390A
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Abstract
The present invention relates to a non-conductive material electric spark milling electrode tip which belongs to the field of tool machining. The invention includes a negative instrument electrode (2), a negative instrument electrode guiding plate (3), a driving wheel (4), a direct current servo motor (12) and the axis thereof, an insulating divider (6), a positive instrument electrode upper guiding plate (7), a lower guiding plate (10), a driving wheel (9), a direct current servo motor (13) and the axis (8) thereof, and an instrument electrode (11). In machining the positive and negative instrument electrodes are respectively connected with the positive and negative poles of the impulsing power source, and feed to the surface of the non-conductive workpiece at the rotating rubbing effect of each driving wheel, the lower end part of the positive and negative instrument electrodes generate spark discharging at the surface of the non-conductive workpiece and a discharging path is formed, the high-temperature and high-pressure effects which are generated when the discharging part flows by the surface of the non-conductive material is used to do electric spark milling machining, and the invention has the advantages of simple structure and high efficiency in machining the non-conductive intractable material, etc.
Description
Technical field
The invention belongs to field of machining, relate to a kind of non-conducting material spark milling electrode tip.
Background technology
At present, the electric processing method of the more non-conducting material of Chinese scholars research mainly contains: methods such as high-voltage spark processing, auxiliary electrode processing, electrolysis electric spark Compound Machining.
High-voltage spark processing is the workpiece of putting into insulation between sharp electrode and plate electrode, two interpolars are direct current or industrial frequency AC high voltage in addition, makes near the air the sharp electrode breakdown, and the glow discharge ablation takes place, this kind adding method only can be processed shallow bore hole, and the surface that processing is portalled is more coarse.The auxiliary electrode spark erosion machining is placed on a sheet metal or wire netting on the surface of non-conducting material in advance as auxiliary electrode, after auxiliary electrode is punched by discharge, on the non-conducting material surface, form one deck tungsten carbide/conductive layer, make surface of the work have electric conductivity, in this conductive layer of tool-electrode ablation, form new conductive layer again, just can realize spark machined thus, but its working (machining) efficiency and precision are all lower non-conducting material.Electrolysis spark discharge Compound Machining is the maximum non-conducting material EDM Technology of current research, and it is to be used for a kind of electric processing method of ablation processing non-conducting material by means of the spark discharge in the electrolyte.It adds the man-hour tool-electrode and connects the negative pole of the pulse power, auxiliary electrode connects the positive pole of the pulse power, when two interpolars add pulse voltage, by electrochemical action, produce bubble on the tool-electrode surface, make by this bubble between the working solution of tool-electrode surface and conduction and form high electric potential gradient, cause spark discharge, TRANSIENT HIGH TEMPERATURE when discharging and shock wave etc. are used for reaching the purpose of ablation non-conducting material.Problems such as this kind processing method exists that efficient is low, energy consumption is big, machining accuracy is low, surface quality is poor, also discharges harmful water electrolytic gas simultaneously in the process, and processing environment is relatively poor.
At present, do not see the bibliographical information of relevant milling non-conducting material spark technology and device thereof both at home and abroad as yet.
Summary of the invention
The object of the present invention is to provide a kind of non-conducting material spark milling electrode tip, develop new non-conducting material electric spark process equipment, improve non-conductive difficult-to-machine material working (machining) efficiency, reduce its processing cost.
Principle of the present invention is: the non-conducting material spark milling electrode tip of being invented is mainly by negative tool-electrode 2, negative tool-electrode guide plate 3, negative tool-electrode driving wheel 4, negative tool-electrode DC servo motor axle 5, insulating barrier 6, guide plate 7 on the positive tool-electrode, positive tool-electrode DC servo motor axle 8, positive tool-electrode driving wheel 9, positive tool-electrode lower guide plate 10, positive tool-electrode 11, negative tool-electrode DC servo-motor 12, positive tool-electrode DC servo-motor 13 compositions such as grade.Spark milling adds man-hour, negative tool-electrode 2 and positive tool-electrode 11 be negative with the pulse power respectively, anodal linking to each other, negative tool-electrode 2 under the spin friction effect of its driving wheel 4 vertically to non-conductive surface of the work feeding, the direction that positive tool-electrode 11 tilts in the spin friction effect lower edge of its driving wheel 9 is to non-conductive surface of the work feeding, the lower end of negative tool-electrode 2 produces spark discharge with the lower end of positive tool-electrode 11 on non-conductive surface of the work, form the spark discharge passage, the high temperature that produces when flowing through the non-conducting material surface by discharge channel, the processing of spark milling ablation is carried out in the high pressure effect.The non-conducting material workpiece is installed on X, the Y direction travelling table, under the drive of X, Y direction travelling table, do moving of X, Y direction, the spark milling electrode tip of being invented is installed on the Z direction main tapping, do moving of Z direction with main tapping, realize the spark milling of complicated shape non-conducting material workpiece is processed by the interlock between workbench and main tapping.
The present invention has following advantage:
1. high temperature, the high pressure that produces when utilizing discharge channel between positive and negative tool-electrode to flow through the non-conducting material surface is used for ablation and processes non-conducting material, can process various unmanageable non-conducting materials.
2. in the milling non-conducting material spark process, the macroscopical active force between positive and negative tool-electrode and workpiece is very little, can realize the processing to the low rigidity non-conducting material part of complexity easily.
3. make the spark milling working solution with water base emulsion, process does not have electrolysis and exists, and has avoided electrolysis electric spark combined machining method problem, the problem includes: processing environment is poor, the problem of easy-to-rust lathe.
4. simple in structure, reliable operation.
Description of drawings
Fig. 1 is the axial arrangement schematic diagram of non-conducting material spark milling electrode tip of the present invention, and Fig. 1 is the profile of A-A position among Fig. 2.
Fig. 2 is the radial structure schematic diagram of non-conducting material spark milling electrode tip of the present invention, also is the vertical view of Fig. 1.
The specific embodiment
Referring to Fig. 1.Non-conducting material spark milling electrode tip of the present invention comprises guide plate 7, positive tool-electrode DC servo motor axle 8, positive tool-electrode driving wheel 9, positive tool-electrode lower guide plate 10, positive tool-electrode 11 on negative tool-electrode 2, negative tool-electrode guide plate 3, negative tool-electrode driving wheel 4, negative tool-electrode DC servo motor axle 5, insulating barrier 6, the positive tool-electrode.Negative tool-electrode 2 links to each other with the negative pole of electric spark pulse, it is inserted in the gathering sill that is made of negative tool-electrode guide plate 3 and insulating barrier 6, its lower end produces spark discharge with the lower end of positive tool-electrode 11 on the surface of non-conducting material workpiece 1, form the spark discharge passage, the high temperature that produces when flowing through the non-conducting material surface by discharge channel, the processing of spark milling ablation is carried out in the high pressure effect, negative tool-electrode guide plate 3 is used for the support of negative tool-electrode 2 when mobile vertically, guiding, negative tool-electrode driving wheel 4 is pressed on the surface of negative tool-electrode 2, the frictional force that its when rotation produces can drive negative tool-electrode 2 moving vertically, negative tool-electrode DC servo motor axle 5 is used to install negative tool-electrode driving wheel 4, transmit needed rotation torque when bearing 4 rotations of tool-electrode driving wheel, insulating barrier 6 is used for just isolating, negative tool-electrode and support, guiding, support when guide plate 7 is used for positive tool-electrode 11 and moves on the positive tool-electrode, guiding, positive tool-electrode DC servo motor axle 8 is used to install positive tool-electrode driving wheel 9, needed rotation torque when transmitting 9 rotations of positive tool-electrode driving wheel, positive tool-electrode driving wheel 9 is pressed on the surface of positive tool-electrode 11, the frictional force that produces during its rotation can drive positive tool-electrode 11 to the surface of the work feeding, positive tool-electrode lower guide plate 10 is controlled the direction of feed of positive tool-electrode 11 to non-conductive surface of the work with insulating barrier 6, positive tool-electrode 11 links to each other with the positive pole of electric spark pulse, it is inserted into by on the positive tool-electrode, lower guide plate 7, in 10 gathering sills that constitute with insulating barrier 6, the lower end of its lower end and negative tool-electrode 2 produces spark discharge on the surface of non-conducting material workpiece, form the spark discharge passage, the high temperature that produces when flowing through the non-conducting material surface by discharge channel, the processing of spark milling ablation is carried out in the high pressure effect.
Referring to Fig. 2.In the radial structure schematic diagram of the non-conducting material spark milling electrode tip of being invented, the 2nd, negative tool-electrode, the 3rd, negative tool-electrode guide plate, the 4th, negative tool-electrode driving wheel, the 5th, negative tool-electrode DC servo motor axle, the 6th, insulating barrier, the 7th, guide plate on the positive tool-electrode, the 8th, positive tool-electrode DC servo motor axle, the 9th, positive tool-electrode driving wheel, the 11st, positive tool-electrode, the 12nd, negative tool-electrode DC servo-motor, it drives negative tool-electrode driving wheel 4 by the rotating shaft on it and rotates, drive of the surperficial feeding of negative tool-electrode by negative tool-electrode driving wheel 4 to the non-conducting material workpiece, the 13rd, positive tool-electrode DC servo-motor, it drives positive tool-electrode driving wheel 9 by the rotating shaft on it and rotates, drive of the surperficial feeding of positive tool-electrode by positive tool-electrode driving wheel 9 to the non-conducting material workpiece, just make, on the surface of non-conductive workpiece, produce spark discharge between the bottom of negative tool-electrode, form the spark discharge passage, the high temperature that produces when flowing through the non-conducting material surface by discharge channel, the processing of spark milling ablation is carried out in the high pressure effect.
Claims (2)
1. non-conducting material spark milling electrode tip, it comprises negative tool-electrode (2), negative tool-electrode guide plate (3), negative tool-electrode driving wheel (4), negative tool-electrode DC servo motor axle (5), insulating barrier (6), guide plate (7) on the positive tool-electrode, positive tool-electrode DC servo motor axle (8), positive tool-electrode driving wheel (9), positive tool-electrode lower guide plate (10), positive tool-electrode (11), negative tool-electrode DC servo-motor (12), positive tool-electrode DC servo-motor (13), it is characterized in that: negative tool-electrode (2) links to each other with the negative pole of spark pulse power, it can be vertically to non-conductive surface of the work feeding under the effect of negative tool-electrode driving wheel (4), positive tool-electrode (11) links to each other with the positive pole of spark pulse power, it can be along inclined direction to non-conductive surface of the work feeding under the effect of positive tool-electrode driving wheel (9), the lower end of negative tool-electrode (2) produces spark discharge with the lower end of positive tool-electrode (11) on the surface of non-conductive workpiece, the high temperature that produces when flowing through the non-conducting material surface by discharge channel, high pressure is used for carrying out spark milling processing.
2. non-conducting material spark milling electrode tip as claimed in claim 1, it is characterized in that: negative tool-electrode (2) is inserted in the gathering sill that is made of negative tool-electrode guide plate (3) and insulating barrier (6), negative tool-electrode driving wheel (4) is pressed on the negative tool-electrode (2), spin friction by negative tool-electrode driving wheel (4) is used for sending to negative tool-electrode (2), negative tool-electrode driving wheel (4) is installed on the axle (5) of negative tool-electrode DC servo-motor (12), driving negative tool-electrode driving wheel (4) by negative tool-electrode DC servo-motor (12) rotates, positive tool-electrode (11) is inserted into by on the positive tool-electrode, lower guide plate (7), (10) in the gathering sill that constitutes with insulating barrier (6), positive tool-electrode driving wheel (9) is pressed on the positive tool-electrode (11), spin friction by positive tool-electrode driving wheel (9) is used for sending to positive tool-electrode (11), positive tool-electrode driving wheel (9) is installed on the axle (8) of positive tool-electrode DC servo-motor (13), drives positive tool-electrode driving wheel (9) by positive tool-electrode DC servo-motor (13) and rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101149210A CN100513036C (en) | 2007-11-19 | 2007-11-19 | Non-conducting material spark milling electrode tip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101149210A CN100513036C (en) | 2007-11-19 | 2007-11-19 | Non-conducting material spark milling electrode tip |
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| CN101161390A true CN101161390A (en) | 2008-04-16 |
| CN100513036C CN100513036C (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007101149210A Active CN100513036C (en) | 2007-11-19 | 2007-11-19 | Non-conducting material spark milling electrode tip |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286397A (en) * | 2012-02-27 | 2013-09-11 | 发那科株式会社 | Wire electrical discharge machine and wire electrical discharge method for reducing machining damage |
| CN108788346A (en) * | 2018-06-22 | 2018-11-13 | 哈尔滨理工大学 | A kind of electric spark and electrolysis complex machining device |
| CN112475491A (en) * | 2020-11-20 | 2021-03-12 | 大连工业大学 | Bipolar electrode electric spark machining device and method suitable for insulating hard and brittle materials |
-
2007
- 2007-11-19 CN CNB2007101149210A patent/CN100513036C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286397A (en) * | 2012-02-27 | 2013-09-11 | 发那科株式会社 | Wire electrical discharge machine and wire electrical discharge method for reducing machining damage |
| CN103286397B (en) * | 2012-02-27 | 2015-05-27 | 发那科株式会社 | Wire electrical discharge machine and wire electrical discharge method for reducing machining damage |
| US9085037B2 (en) | 2012-02-27 | 2015-07-21 | Fanuc Corporation | Wire electrical discharge machine and wire electrical discharge method for reducing machining damage during cutting machining and escape machining |
| CN108788346A (en) * | 2018-06-22 | 2018-11-13 | 哈尔滨理工大学 | A kind of electric spark and electrolysis complex machining device |
| CN112475491A (en) * | 2020-11-20 | 2021-03-12 | 大连工业大学 | Bipolar electrode electric spark machining device and method suitable for insulating hard and brittle materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100513036C (en) | 2009-07-15 |
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