CN1320975C - Internal liquid-flushing cluster shaping electrode for electrospark machining - Google Patents
Internal liquid-flushing cluster shaping electrode for electrospark machining Download PDFInfo
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- CN1320975C CN1320975C CNB2005100245796A CN200510024579A CN1320975C CN 1320975 C CN1320975 C CN 1320975C CN B2005100245796 A CNB2005100245796 A CN B2005100245796A CN 200510024579 A CN200510024579 A CN 200510024579A CN 1320975 C CN1320975 C CN 1320975C
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Abstract
The present invention relates to an internal liquid-flushing cluster shaping electrode for electric spark machining, which belongs to the technical field of special machining and comprises an electrode unit and an electrode base, wherein the bottom end of the electrode base is fixed and supports the combined body of the electrode unit which is a bar-shaped object; the electrode base comprises an electrode clamp joint, a base body and a clamping module; the open end of the base body is connected with the clamping module; the bottom of the electrode clamp joint and the base body are in an integral type or in a split type. When the bottom of the electrode clamp joint and the base body are in the split type, the electrode clamp joint is in screwed connection or matching connection with the closed end of the base body, and the bottom of the electrode clamp joint is inserted and fixed to the base body. The present invention shortens the making time of the electrode for electric spark shaping machining, reduces the production cost and the difficulty of shaping electrodes, realizes the mass production of shaping machining electrodes, enhances the utilization rate of electrode materials, improves the machining efficiency and accelerates the machining speed.
Description
Technical field
What the present invention relates to is a kind of boundling shaped electrode that belongs to the special processing technology field, specifically, is a kind of internal liquid-flushing cluster shaping electrode for electrospark.
Background technology
Spark machined is a kind of processing method that adopts effect ablation workpiece materials such as heat and chemistry, have the restriction of mechanical performances such as not being subjected to workpiece material intensity, hardness and do not have the advantage of macroscopical cutting force, be particularly suitable for the processing of difficult-to-machine material and complicated shape part, have more widely in industries such as Aeronautics and Astronautics, automobile, electronics, mould, light industrys and use.Workpiece with complex profile adopts shaped electrode to process usually, the electrode that existing Electric Discharge Machining method is used has following deficiency: 1, because the electrode shape complexity, and profile changes with the difference of workpiece, be unfavorable for batch machining, manufacturing process needs more man-hour, the process equipment costliness also has higher requirements to the technological level of processing personnel; 2, need to remove quite a few material in the electrode manufacturing process, and export license be to just changing to a certain degree, recycling rate of waterused is low, and the waste resource and the energy do not meet the trend of green manufacturing; 3, need make a plurality of electrodes during processing and forming and be used for changing, because each electrode cost of manufacture height causes the electrode cost to account for about half of whole processing charges; 4, each shaped electrode can only have one road power supply disruptive discharge at every turn, adds the existence between the discharge arteries and veins, makes interior material removing rate of its unit interval not high; When 5, the shaped electrode area increased, interelectrode parasitic capacitance also increased, and made each pulse discharging energy increase, and had reduced the quality of finished surface; 6, the working solution of traditional spark machined can only enter machining area from the side gap of electrode, need select suitable machining gap and parameter for use even need often have the action of lifting electrode to be beneficial to chip removal, reduces working (machining) efficiency.When the shaped electrode area increased in addition, the working solution flowability was bad, and the galvanic corrosion product is not easy to be taken out of by working solution by the machining gap between tool-electrode and the workpiece, increases short circuit easily, reduced working (machining) efficiency and workpiece surface quality.
In edm process, can quick Fabrication, high clearance, high usage if adopt, electrode is processed cheaply, just when needs fine finishining, use shaped electrode to process, then can improve the market competitiveness of spark machined greatly, more meet the trend of present green manufacturing.
By prior art documents, Chinese patent publication number CN 1526503A, open day on September 8th, 2004, denomination of invention is: electric discharging machining electrode, this patent readme is: though the present invention relates to a kind of in finishing step can by improve electric discharge generation rate eta, the speed of speeding operations is applicable to the electric discharging machining electrode that improves workpiece polished surface quality, even also can keep electric discharge generation rate eta when time width and discharge pulse voltage are reduced.Undertaken in the electrode 1 of spark machined processing by generation discharge pulse between workpiece 3 and electrode a kind of, the position that produces discharge pulse on electrode comprises radioactive metal, or comprises radioactive metal near the position the above-mentioned position.The ray of being launched by radioactive metal to workpiece and be present in workpiece 3 and electrode 1 between the just so-called treat liquid of material exert one's influence, described treat liquid is pure water and oil normally, thereby promote the electrolysis of described material.Its weak point is: 1. adopt radioactive metal Co as electrode, for the workpiece of lathe itself, operating personnel and processing very big radiation is arranged all, not only do not meet the requirement of green manufacturing, needs are careful during employing.2. the electrode material of Cai Yonging need use strategic resources such as tungsten, cobalt, and cost is high.3. the discharging gap of Cai Yonging is 1 μ m, needs to cooperate accurate control and feed system, and the lathe cost is very high.4. have only a point of discharge, working (machining) efficiency is low.Towards liquid, working (machining) efficiency was low in cited literature 2 can't be realized.Towards liquid, working (machining) efficiency improved greatly in this patent adopted.5. it is high to make the shaped electrode cost, and the time is long, even needs nuclear reactor, to the producer require highly, serious is unfavorable in vast nuclear-free countries and area popularization.6. be applicable to microfabrication, inapplicable for the shaped electrode processing of big removal amount.7. adopt sintering method to make, flexible poor, and the electrode that sintering obtains has distortion.8. promptly need abandon processing after the loss of electrode part, form radioactive waste.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art and defective, a kind of internal liquid-flushing cluster shaping electrode for electrospark is provided, make it reduce the electrode Production Time of Electric Discharge Machining, reduce shaped electrode cost of manufacture and difficulty, realize the mass production of moulding machined electrode, improve the utilization rate of electrode material, improve working (machining) efficiency and speed.
The present invention is achieved by the following technical solutions, the present invention includes: electrode unit and electrode base, its connected mode is: the fixing also assembly of support electrode unit in the bottom of electrode base.
Described electrode unit is bar-shaped object, and its radial section profile is following wherein a kind of: circle, quadrangle, I-shaped, cross, T shape, L shaped, Z-shaped.
Described electrode unit is a hollow, and perhaps a side of electrode unit has groove, does not insulate between the electrode unit on the same group.When forcing towards liquid, the slit in the middle of the electrode unit is as the passage of working solution, and the dash liquid module conveying of working solution from the upper end electrode pedestal come.Carry out electrode unit grouping multiple spot electrical spark working man-hour, be positioned at the electrode unit insulation of respectively organizing the border.
Described electrode base comprises: electrode holder interface, base body, clamping module, its connected mode is: the openend of base body connects the clamping module.Described electrode base comprises: electrode holder interface, base body, power module, towards liquid module, clamping module, its connected mode is: the openend of base body is with power module, be connected with the clamping module towards the liquid module, power module, is located at the top of clamping module towards the liquid module.Above-mentioned electrode holder interface of mentioning and the connected mode between the base body are: electrode holder interface bottom is an integral type with base body, it perhaps is detachable, when electrode holder interface bottom is detachable with base body, the blind end of electrode holder interface and base body is by being threaded or being connected, and electrode holder interface bottom is inserted and secured on base body.
Described electrode holder interface is connected with electrode holder.
On the blind end of described base body, be provided with power interface and working solution interface.Base body is used to install power module, towards liquid module, clamping module.
One end of described power module is connected with the power unit of lathe, and the other end of power module is connected with electrode unit, and the power module of corresponding every group of electrode unit has a pulse power passage.Power module is used for the branch multichannel to each group electrode unit power supply, and making electrode add has a plurality of point of discharges to process simultaneously man-hour, improves working (machining) efficiency.When adopting the power supply of grouping power supply, insulate between every group of electrode unit.
Openend in described clamping module is provided with electrode unit.
The course of work of the present invention is: electrode unit is the part that bundling electrode is used for spark discharge processing, and the electrode unit bottom is used for spark machined.Bundling electrode is connected with external power source by the power interface of base body.External power source provides discharge pulse to power module, and powers to electrode unit through power module (or directly).Electrode unit contacts with each other on the same group, forms one group of machined electrode, does not insulate between the electrode unit on the same group, forms a plurality of discharge channels man-hour adding.After forming enough electric fields between electrode and the workpiece, the breakdown formation plasma discharge of working solution passage.Surface of the work melts rapidly and is pulled out away under the high temperature action of plasma and enters in the working solution.Working solution passes through the working solution interface and is connected towards the liquid module, and and then with electrode unit UNICOM, arrive machining gap through the space in the electrode unit, reach the effect of forcing towards liquid, so that the elaboration products between electrode and the workpiece are discharged fast, promote discharge channel to recover insulation, reduce short circuit probability.When not needing to force, can only use anchor clamps interface and electrode unit clamping module towards liquid and grouping power supply.
The invention has the beneficial effects as follows: 1, monoblock type shaped electrode discretization a large amount of stick electrode unit of serving as reasons is polymerized.Make have complex outline, the manufacture simplification of shaped electrode that processing cost is high for can be in enormous quantities, the simple electrode unit of low-cost production combine reduction electrode cost; 2, power module can be realized the multiple spot discharge of multi-group electrode, increase ablation rate that can be at double, reduction of erection time; 3, be furnished with in the bundling electrode of discretization and force towards the liquid module, can realize machined electrode evenly towards working solution, strengthen chip removal ability and cooling capacity, avoid lifting the electrode operation and can reduce short circuit ratio, save time; 4, use the clamping module of electrode base, can form complicated shaped electrode with the simple electrode unit fast, reduce electrode time, increase system flexibility; 5, can only replace the big electrode unit of part loss in the process, and electrode unit can reuse, improve stock utilization, meet the requirement of green manufacturing.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the structural representation of electrode base
The specific embodiment
The present invention includes: electrode unit 1 and electrode base 2, the bottom of electrode base 2 is fixed, the assembly of support electrode unit 1.
Described electrode unit 1 is bar-shaped object, and its radial section profile is following wherein a kind of: circle, quadrangle, I-shaped, cross, T shape, L shaped, Z-shaped.
Described electrode unit 1 is a hollow, and perhaps a side of electrode unit 1 has groove, not insulation between the electrode unit 1 on the same group.
Described electrode base 2 comprises: electrode holder interface 4, base body 5, power module 6, towards liquid module 7, clamping module 8, its connected mode is: the openend of base body 5 is with power module 6, be connected with clamping module 8 towards liquid module 7, power module 6, be located at the top of clamping module 8 towards liquid module 7, electrode holder interface 4 bottoms and base body 5 are detachable, the blind end of electrode holder interface 4 and base body 5 is by being threaded, and electrode holder interface 4 bottoms are inserted and secured on base body 5.
Described electrode holder interface 4 is connected with electrode holder 3.
On the blind end of described base body 5, be provided with power interface 10 and working solution interface 11.
The power module 6 of every group of electrode unit of described correspondence 1 all has a pulse power passage, and an end of power module 6 is connected with the power unit 9 of lathe, and the other end of power module 6 is connected with electrode unit 1.
Openend in described clamping module 8 is provided with electrode unit 1.
Claims (7)
1, a kind of internal liquid-flushing cluster shaping electrode for electrospark, comprise: electrode unit (1) and electrode base (2), it is characterized in that, the bottom of electrode base (2) is connected with electrode holder (3) by electrode holder interface (4), the fixing also assembly of support electrode unit (1) of electrode base (2), described electrode unit (1) is bar-shaped object, and hollow or a side have groove, insulation between the electrode unit (1) on the same group; Described electrode base (2) comprising: electrode holder interface (4), base body (5), clamping module (8), the openend of base body (5) connects clamping module (8), electrode holder interface (4) bottom is integral type with base body (5) or is detachable, when electrode holder interface (4) bottom is detachable with base body (5), the blind end of electrode holder interface (4) and base body (5) is by being threaded or being connected, and electrode holder interface (4) bottom is inserted and secured on base body (5).
2, internal liquid-flushing cluster shaping electrode for electrospark according to claim 1, it is characterized in that, described electrode base (2) or comprise: electrode holder interface (4), base body (5), power module (6), towards liquid module (7), clamping module (8), the openend of base body (5) is with power module (6), be connected with clamping module (8) towards liquid module (7), power module (6), is located at the top of clamping module (8) towards liquid module (7).
3, internal liquid-flushing cluster shaping electrode for electrospark according to claim 1, it is characterized in that, described electrode unit (1), its radial section outline are following wherein a kind of: circle, quadrangle, I-shaped, cross, T shape, L shaped, Z-shaped.
According to claim 1 or 2 described internal liquid-flushing cluster shaping electrode for electrosparks, it is characterized in that 4, described electrode holder interface (4) is connected with electrode holder (3).
5, according to claim 1 or 2 described internal liquid-flushing cluster shaping electrode for electrosparks, it is characterized in that, on the blind end of described base body (5), be provided with power interface (10) and working solution interface (11).
6, internal liquid-flushing cluster shaping electrode for electrospark according to claim 1, it is characterized in that, one end of described power module (6) is connected with the power unit (9) of lathe, the other end of power module (6) is connected with electrode unit (1), and the power module (6) of corresponding every group of electrode unit (1) has a pulse power passage.
7, according to claim 1 or 2 described internal liquid-flushing cluster shaping electrode for electrosparks, it is characterized in that, be provided with electrode unit (1) at the openend of described clamping module (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100245796A CN1320975C (en) | 2005-03-24 | 2005-03-24 | Internal liquid-flushing cluster shaping electrode for electrospark machining |
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| CNB2005100245796A CN1320975C (en) | 2005-03-24 | 2005-03-24 | Internal liquid-flushing cluster shaping electrode for electrospark machining |
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| CN1320975C true CN1320975C (en) | 2007-06-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966614A (en) * | 2010-09-02 | 2011-02-09 | 上海交通大学 | Digital preparation device for bunched forming electrode and preparation method thereof |
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| CN101890547B (en) * | 2010-08-06 | 2012-05-30 | 上海交通大学 | Clustered shaped electrode holding device |
| CN102151922B (en) * | 2010-12-30 | 2012-07-25 | 上海交通大学 | Device and method for quickly manufacturing bundled forming electrode profile |
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| JPS57198426A (en) * | 1981-06-01 | 1982-12-06 | Mitsubishi Electric Corp | Optical branching and coupling device |
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| CN1657208A (en) | 2005-08-24 |
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