CN103692034A - Device for conducting electrical discharge machining on outer surface with complex shape - Google Patents
Device for conducting electrical discharge machining on outer surface with complex shape Download PDFInfo
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- CN103692034A CN103692034A CN201310702722.7A CN201310702722A CN103692034A CN 103692034 A CN103692034 A CN 103692034A CN 201310702722 A CN201310702722 A CN 201310702722A CN 103692034 A CN103692034 A CN 103692034A
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- workpiece
- outer rim
- electrode
- magnetic pole
- rim electrode
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- 238000009760 electrical discharge machining Methods 0.000 title abstract description 3
- 239000006247 magnetic powder Substances 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims description 33
- 238000009413 insulation Methods 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 10
- 238000012986 modification Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a device for conducting electrical discharge machining on the outer surface with complex shape. The device comprises a machining power supply and a workpiece clamp used for clamping workpieces and further comprises an outer edge electrode, a feeding system, an annular magnetic pole group and a control system. The outer edge electrode is fixed on the periphery of the outer surface of a workpiece to be machined, and a certain gap is reserved between the inner wall of the outer edge electrode and the outer edge of the workpiece. A motor is arranged at one end of the feeding system, and a magnetic pole clamp capable of reciprocating linearly in the preset journey range under driving of the motor is arranged on the lateral wall of the feeding system. The annular magnetic pole group is fixedly arranged on the magnetic pole clamp and encloses the outer wall of the outer edge electrode with a certain gap reserved in between. The control system is connected with the motor and the machining power supply through a circuit, two electrodes of the machining power supply are connected with the workpiece and the outer edge electrode, and conductive magnetic powder is arranged between the outer edge electrode and the outer surface of the workpiece to be machined. The device can be used for conducting coarsening, modification, strengthening and the like on the outer surface with the complex shape, can also be used for coating the outer surface with the complex shape, and is high in efficiency and low in cost.
Description
Technical field
The invention belongs to electric machining field, particularly a kind of device that complex-shaped outer surface is discharged and processed.
Background technology
Development along with economic technology, the various devices with complicated shape outer surface are widely used in producing and living, research shows, the outer surface of such devices is carried out to secondary operations processing, such as manufacture various micro-structurals on the outer surface of device, outer surface to device is strengthened, or form coating etc. on the outer surface of device, can effectively improve the function of such devices, there is great realistic meaning, for example, if can produce small structure at the fin outer surface that is applied to each industrial circle, just can effectively increase heat transfer surface area, thereby effectively improve the efficiency of conducting heat, yet because this type of surperficial shape is very complicated, adopt existing cutting, grinding, laser, the processing methods such as water jet and means are difficult to effectively effective secondary operations be carried out in this type of surface, therefore need to explore the requirement that new technology meets the secondary operations of this type of difficult processing outer surface.
Spark erosion machining is widely used at industrial circle, can be used for part moulding, surface modification, strengthening and in piece surface manufacturing function coating etc.
If yet adopt traditional shaped electrode discharge-treating method to process complex-shaped outer surface, requirement must first produce the shaped electrode of rigidity, because shaped electrode all has suitable difficulty aspect making, installation, also there is the loss of tool-electrode in edm process in addition, therefore adopts the outer surface of shaped electrode electric spark method machining shape complexity not only time-consuming but also with high costs.
If adopt the outer surface of the method machining shape complexity of Wire EDM, although can avoid expending the problem that a large amount of costs carries out the making of shaped electrode, also can ignore the impact of the loss of tool-electrode on process, yet the method process velocity is extremely low, be difficult to meet the needs of actual production.
Summary of the invention
For above-mentioned technical problem, the present invention is intended to solve the problems of the technologies described above at least to a certain extent.
The object of this invention is to provide a kind of simple in structure, the outer surface to complex-shaped that efficiency is high, cost is low discharge processing device.
The present invention adopts following technical scheme:
To the discharge device of processing of complex-shaped outer surface, comprise processing power source, for the work piece holder of clamping workpiece, also comprise:
Outer rim electrode, is fixed on the outer surface surrounding to be processed of workpiece by electrode holder, workpiece is surrounded to described outer rim electrode inner wall and workpiece outer rim certain gap that is separated by;
Feed system, one end of described feed system is provided with motor, sidewall be provided with under the driving of motor can be in predetermined stroke range along the magnetic pole fixture of straight reciprocating motion;
Annular magnetic pole group, is fixedly installed on described magnetic pole fixture, and is separated by certain interval and surrounds the outer wall of outer rim electrode, and can under the drive of magnetic pole fixture, along the axis of outer rim electrode, do straight reciprocating motion;
Control system, is connected with motor and processing power source by circuit;
Two electrodes of described processing power source are connected with outer rim electrode with workpiece respectively, the conductive magnetic powder that to be provided with by iron powder or nickel powder between described outer rim electrode and the outer surface to be processed of workpiece be material.
Further, the bottom of described workpiece is also provided with for isolating the insulation barrier of workpiece and outer rim electrode.
Further, between described work piece holder and the contact-making surface of workpiece, between outer rim electrode and the contact-making surface of electrode holder, be insulation.
Further, also comprise that described magnetic supply system is connected by circuit with control system to supplementing the magnetic supply system of conductive magnetic powder between outer rim electrode and the outer surface of workpiece.
Further, also comprise anti-powder cover, be arranged at the porch of the centre bore of described workpiece upper end.
Compared with prior art, the invention has the beneficial effects as follows: conductive magnetic powder can automatically adapt to and be attached on complex-shaped outer surface of workpiece, without controlling especially, be attached at the magnetic of surface of the work can be under the drive of magnetic pole group relatively surface of the work move, and in the process of motion to the surface of the work processing of discharging.
Conductive magnetic powder and magnetic pole all obtain conveniently, cheap.
The present invention is without the fabrication and installation of carrying out complicated electrode, means are simple and easy to do, and can have larger working (finishing) area, thereby can obtain the process velocity being exceedingly fast, to improving the working (machining) efficiency of the part with complicated shape outer surface, promote the commercial Application of such part to there is positive meaning.
The art of this patent means are simple and easy to do, have positive technique effect.
Accompanying drawing explanation
Fig. 1 is the structural scheme of mechanism of the embodiment of the present invention 1.
Fig. 2 is A-A place cross-sectional schematic in Fig. 1.
Fig. 3 is the local enlarged diagram in I place in Fig. 2.
In figure: 1-workpiece; 2-outer rim electrode; 3-conductive magnetic powder; 4-processing power source; 5-insulation barrier; 6-magnetic pole group; 7-magnetic pole fixture; 8-magnetic supply system; 9-work piece holder; 10-electrode holder; 11-control system; 12-feed system; 13-motor; 14-workbench; The anti-powder cover of 15-.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, goal of the invention of the present invention is described in further detail, embodiment can not repeat one by one at this, but therefore embodiments of the present invention are not defined in following examples.
Embodiment:
As shown in Figures 1 and 3, a kind of the discharge device of processing of complex-shaped outer surface is comprised to processing power source 4, for the work piece holder 9 of clamping workpiece 1, also comprises:
Annular magnetic pole group 6, is fixedly installed on described magnetic pole fixture 7, and is separated by certain interval and surrounds the outer wall of outer rim electrode 2, and can under the drive of magnetic pole fixture 7, along the axis of outer rim electrode 2, do straight reciprocating motion;
Two electrodes of described processing power source 4 are connected with outer rim electrode 2 with workpiece 1 respectively, the conductive magnetic powder 3 that to be provided with by iron powder or nickel powder between described outer rim electrode 2 and the outer surface to be processed of workpiece 1 be material.
Further, the bottom of described workpiece 1 is also provided with for isolating the insulation barrier 5 of workpiece 1 and outer rim electrode 2.
Further, between described work piece holder 9 and the contact-making surface of workpiece 1, between outer rim electrode 2 and the contact-making surface of electrode holder 10, be insulation.
Further, also comprise that described magnetic supply system 8 is connected by circuit with control system 11 to supplementing the magnetic supply system 8 of conductive magnetic powder 3 between outer rim electrode 2 and the outer surface of workpiece 1.
Further, also comprise anti-powder cover 15, be arranged at the porch of the centre bore of described workpiece 1 upper end.
Discharge operating process and the operation principle of device of processing of the outer surface to complex-shaped that the present embodiment provides is as follows:
(1) by work piece holder 9, workpiece 1 is fixed on workbench 14, by electrode holder 10, outer rim electrode 2 is fixed on coaxially to the outer surface surrounding to be processed of workpiece 1;
(2) by magnetic supply system 8, between outer rim electrode 2 and workpiece 1 outer surface to be processed, supply appropriate conductive magnetic powder 3, conductive magnetic powder 3 and workpiece 1 outer surface to be processed are effectively fitted.
(3), in process, workpiece 1 connects the positive pole of processing power source 4, the negative pole of outer rim electrode 2 connection processing power sources 4 (or according to the needs of reality processing, workpiece 1 also can connect the negative pole of processing power source 4, and outer rim electrode 2 connects the positive pole of processing power sources 4);
(4) in process, magnetic pole group 6 is fixed on magnetic pole fixture 7, feed system 12 drives magnetic pole fixture 7 to drive magnetic pole group 6 to carry out rectilinear motion, conductive magnetic powder 3 slides under the drive of magnetic pole group 6 on the outer surface to be processed of workpiece 1, and form spark discharge effect in the outer surface of laminating with it, thereby realize the object that workpiece 1 outer surface is discharged and processed, in processing, can pass through controlled discharge parameter, as electric discharge machining voltage, electric discharge processing electric current, pulse width, pulse spacing etc. are controlled processing stage.
In the electric discharge machining process of conductive magnetic powder 3, the discharge loss of conductive magnetic powder 3, can supplement conductive magnetic powder 3 by magnetic supply system 8, and the amount of the conductive magnetic powder 3 that magnetic supply system 8 is supplementary can be controlled by control system 11 according to actual processing situation.
In process, conductive magnetic powder 3 can adapt to the outer surface of workpiece of various complicated shapes automatically, in the relative motion process on conductive magnetic powder 3 and workpiece 1 surface, to the processing of discharging of the outer surface of workpiece 1.
Conductive magnetic powder can discharge in the gases such as air, argon gas, also can in the liquid such as deionized water, emulsion, discharge, this device can be used for alligatoring, modification, strengthening of various complex-shaped outer surfaces etc., also can be used for various complex-shaped outer surfaces to apply.
In process, although the magnetic between outer rim electrode 2 and workpiece 1 can constantly be discharged effect and remove, yet conductive magnetic powder 3 can constantly supplement by magnetic supply system 8, make conductive magnetic powder can effectively keep the fit-state with surface of the work, thereby guarantee that processing can continue to carry out.
The anti-powder cover 15 of porch that is arranged on the centre bore of workpiece 1 upper end in process can effectively prevent that conductive magnetic powder 3 from entering the endoporus of workpiece.
Work in-process is for adapting to different processing requests, the movement velocity of magnetic pole group 6 can by 11 pairs of motors 13 of control system be used for regulate.In addition, can monitor the processing signal of telecommunication by data collecting card, to realize the control to process.
The above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection domain of the claims in the present invention.
Claims (5)
1. to the discharge device of processing of complex-shaped outer surface, comprise processing power source (4), for the work piece holder (9) of clamping workpiece (1), it is characterized in that, also comprise:
Outer rim electrode (2), is fixed on the outer surface surrounding to be processed of workpiece (1) by electrode holder (10), workpiece (1) is surrounded to described outer rim electrode (2) inwall and workpiece (1) outer rim certain gap that is separated by;
Feed system (12), one end of described feed system (12) is provided with motor (13), sidewall be provided with under the driving of motor (13) can be in predetermined stroke range along the magnetic pole fixture (7) of straight reciprocating motion;
Annular magnetic pole group (6), be fixedly installed on described magnetic pole fixture (7), and be separated by certain interval and surround the outer wall of outer rim electrode (2), and can under the drive of magnetic pole fixture (7), along the axis of outer rim electrode (2), do straight reciprocating motion;
Control system (11), is connected with motor (13) and processing power source (4) by circuit;
Two electrodes of described processing power source (4) are connected with outer rim electrode (2) with workpiece (1) respectively, the conductive magnetic powder (3) that to be provided with by iron powder or nickel powder between described outer rim electrode (2) and the outer surface to be processed of workpiece (1) be material.
2. the device that complex-shaped outer surface is discharged and processed according to claim 1, is characterized in that: the bottom of described workpiece (1) is also provided with for isolating the insulation barrier (5) of workpiece (1) and outer rim electrode (2).
3. according to claim 1 to the discharge device of processing of complex-shaped outer surface, it is characterized in that: between described work piece holder (9) and the contact-making surface of workpiece (1), be insulation between outer rim electrode (2) and the contact-making surface of electrode holder (10).
According to claim 1 to complex-shaped outer surface discharge processing device, it is characterized in that: also comprise that described magnetic supply system (8) is connected by circuit with control system (11) to supplementing the magnetic supply system (8) of conductive magnetic powder (3) between outer rim electrode (2) and the outer surface of workpiece (1).
5. the device that complex-shaped outer surface is discharged and processed according to claim 1, is characterized in that: also comprise dust cover (15), be arranged at the porch of the centre bore of described workpiece (1) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310702722.7A CN103692034B (en) | 2013-12-19 | 2013-12-19 | A kind of device complex-shaped outer surface being carried out to electric discharge processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310702722.7A CN103692034B (en) | 2013-12-19 | 2013-12-19 | A kind of device complex-shaped outer surface being carried out to electric discharge processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103692034A true CN103692034A (en) | 2014-04-02 |
| CN103692034B CN103692034B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310702722.7A Expired - Fee Related CN103692034B (en) | 2013-12-19 | 2013-12-19 | A kind of device complex-shaped outer surface being carried out to electric discharge processing |
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| Country | Link |
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| CN (1) | CN103692034B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825804A (en) * | 2017-03-17 | 2017-06-13 | 广东工业大学 | A kind of turning electric discharge device and method with fix tool electrode |
| CN107378155A (en) * | 2017-05-31 | 2017-11-24 | 广东工业大学 | A kind of method for improving stainless steel surfaces electrical-chemistry method hole uniformity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10150010A (en) * | 1996-11-18 | 1998-06-02 | Hitachi Ltd | Method for polishing semiconductor device |
| EP1033908A2 (en) * | 1999-03-03 | 2000-09-06 | Riken | Plasma discharge truing apparatus and fine-machining methods using the apparatus |
| CN1367726A (en) * | 1999-09-30 | 2002-09-04 | 三菱电机株式会社 | Electrode for discharge surface treating and production method thereof and discharge surface treating method |
| CN1775441A (en) * | 2005-12-15 | 2006-05-24 | 上海交通大学 | Electrodischarge machining method for working non-conductive ceramic utilizing conductive magnetic powder |
| CN202356749U (en) * | 2011-10-25 | 2012-08-01 | 华南理工大学 | Flexible and electric magnetic pole composition tool |
| CN203636141U (en) * | 2013-12-19 | 2014-06-11 | 华南理工大学 | Electric discharge machining device for outer surface with complicated shape |
-
2013
- 2013-12-19 CN CN201310702722.7A patent/CN103692034B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10150010A (en) * | 1996-11-18 | 1998-06-02 | Hitachi Ltd | Method for polishing semiconductor device |
| EP1033908A2 (en) * | 1999-03-03 | 2000-09-06 | Riken | Plasma discharge truing apparatus and fine-machining methods using the apparatus |
| CN1367726A (en) * | 1999-09-30 | 2002-09-04 | 三菱电机株式会社 | Electrode for discharge surface treating and production method thereof and discharge surface treating method |
| CN1775441A (en) * | 2005-12-15 | 2006-05-24 | 上海交通大学 | Electrodischarge machining method for working non-conductive ceramic utilizing conductive magnetic powder |
| CN202356749U (en) * | 2011-10-25 | 2012-08-01 | 华南理工大学 | Flexible and electric magnetic pole composition tool |
| CN203636141U (en) * | 2013-12-19 | 2014-06-11 | 华南理工大学 | Electric discharge machining device for outer surface with complicated shape |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825804A (en) * | 2017-03-17 | 2017-06-13 | 广东工业大学 | A kind of turning electric discharge device and method with fix tool electrode |
| CN106825804B (en) * | 2017-03-17 | 2019-06-11 | 广东工业大学 | A kind of turning electric discharge device and method with fix tool electrode |
| CN107378155A (en) * | 2017-05-31 | 2017-11-24 | 广东工业大学 | A kind of method for improving stainless steel surfaces electrical-chemistry method hole uniformity |
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| Publication number | Publication date |
|---|---|
| CN103692034B (en) | 2016-01-06 |
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