CN103692034B - A kind of device complex-shaped outer surface being carried out to electric discharge processing - Google Patents
A kind of device complex-shaped outer surface being carried out to electric discharge processing Download PDFInfo
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- CN103692034B CN103692034B CN201310702722.7A CN201310702722A CN103692034B CN 103692034 B CN103692034 B CN 103692034B CN 201310702722 A CN201310702722 A CN 201310702722A CN 103692034 B CN103692034 B CN 103692034B
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Abstract
The invention discloses a kind of device complex-shaped outer surface being carried out to electric discharge processing, comprise processing power source, work piece holder for clamping workpiece, also comprise: outer rim electrode, be fixed on the outer surface surrounding to be processed of workpiece, its inwall and workpiece outer rim are separated by certain gap; Feed system, one end is provided with motor, sidewall to be provided with under the driving of motor can in predetermined stroke range linearly reciprocating magnetic pole fixture; Annular magnetic pole group, is fixedly installed on described magnetic pole fixture, and surrounds the outer wall of outer rim electrode with being separated by certain interval; Control system, is connected with motor and processing power source by circuit; Two electrodes of described processing power source respectively with workpiece and outer rim Electrode connection, be provided with conductive magnetic powder between described outer rim electrode and the outer surface to be processed of workpiece.The present invention can be used for carrying out alligatoring, modification, strengthening etc. to complex-shaped outer surface, and also can be used for applying complex-shaped outer surface, its efficiency is high, and cost is low.
Description
Technical field
The invention belongs to electric machining field, particularly a kind of device complex-shaped outer surface being carried out to electric discharge processing.
Background technology
Along with the development of economic technology, the various device with complicated shape outer surface is widely used in production and life, research shows, secondary operations process is carried out to the outer surface of such devices, such as on the outer surface of device, manufacture various micro-structural, the outer surface of device is strengthened, or on the outer surface of device, form coating etc., effectively can improve the function of such devices, there is great realistic meaning, such as, if small structure can be produced at the fin outer surface being applied to each industrial circle, just effectively heat transfer surface area can be increased, thus effectively improve the efficiency of heat transfer, but due to the shape on this type of surface very complicated, adopt existing cutting, grinding, laser, the processing methods such as water jet and means are difficult to effectively carry out effective secondary operations to 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 shaping, surperficial modification, strengthening and in piece surface manufacturing function coating etc.
But according to traditional shaped electrode discharge-treating method, complex-shaped outer surface is processed, requirement first must produce the shaped electrode of rigidity, because shaped electrode all has suitable difficulty in 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.
According to the outer surface of the method machining shape complexity of Wire EDM, although the cost of at substantial can be avoided to carry out the problem of the making of shaped electrode, also the impact of loss on process of tool-electrode can be ignored, but the method process velocity is extremely low, be difficult to the needs meeting 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 structure simple, efficiency is high, cost is low to complex-shaped outer surface carries out discharging the device of processing.
The present invention adopts following technical scheme:
Carry out discharging to complex-shaped outer surface the device of processing, comprises processing power source, work piece holder for clamping workpiece, also comprise:
Outer rim electrode, is fixed on the outer surface surrounding to be processed of workpiece by electrode holder, surrounded by workpiece, and described outer rim electrode inner wall and workpiece outer rim are separated by certain gap;
Feed system, one end of described feed system is provided with motor, sidewall to be provided with under the driving of motor can in predetermined stroke range linearly reciprocating magnetic pole fixture;
Annular magnetic pole group, is fixedly installed on described magnetic pole fixture, and surrounds the outer wall of outer rim electrode with being separated by certain interval, and under the drive of magnetic pole fixture, can do straight reciprocating motion along the axis of outer rim electrode;
Control system, is connected with motor and processing power source by circuit;
Two electrodes of described processing power source respectively with workpiece and outer rim Electrode connection, being provided with by iron powder or nickel powder between described outer rim electrode and the outer surface to be processed of workpiece is the conductive magnetic powder of material.
Further, the bottom of described workpiece is also provided with the insulation barrier for isolating workpiece and outer rim electrode.
Further, between described work piece holder and the contact surface of workpiece insulation, is between outer rim electrode and the contact surface of electrode holder.
Further, also comprise the magnetic supply system to supplementing conductive magnetic powder between outer rim electrode and the outer surface of workpiece, described magnetic supply system is connected by circuit with control system.
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 automatically can adapt to and be attached on complex-shaped outer surface of workpiece, without the need to controlling especially, the magnetic being attached at surface of the work can move on opposite piece surface under the drive of magnetic pole group, and carries out electric discharge processing to surface of the work in the process of motion.
Conductive magnetic powder and magnetic pole all obtain conveniently, cheap.
The present invention is without the need to carrying out the fabrication and installation of complicated electrode, means are simple and easy to do, and can have larger working (finishing) area, thus can obtain the process velocity be exceedingly fast, to improving the working (machining) efficiency with the part of complicated shape outer surface, promote that the commercial Application of such part has 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 I place close-up schematic view 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-.
Detailed description of the invention
Be described in further detail goal of the invention of the present invention below in conjunction with the drawings and specific embodiments, 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 device of processing of carrying out discharging to complex-shaped outer surface, comprises processing power source 4, work piece holder 9 for clamping workpiece 1, also comprises:
Outer rim electrode 2, is fixed on workbench 14 by electrode holder 10, and is surrounded by the outer surface to be processed of workpiece 1, and described outer rim electrode 2 inwall and workpiece 1 outer rim are separated by certain gap
Feed system 12, one end of described feed system 12 is provided with motor 13, sidewall to be provided with under the driving of motor 13 can in predetermined stroke range linearly reciprocating magnetic pole fixture 7;
Annular magnetic pole group 6, is fixedly installed on described magnetic pole fixture 7, and surrounds the outer wall of outer rim electrode 2 with being separated by certain interval, and under the drive of magnetic pole fixture 7, can do straight reciprocating motion along the axis of outer rim electrode 2;
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 workpiece 1 and outer rim electrode 2 respectively, and being provided with between described outer rim electrode 2 and the outer surface to be processed of workpiece 1 by iron powder or nickel powder is the conductive magnetic powder 3 of material.
Further, the bottom of described workpiece 1 is also provided with the insulation barrier 5 for isolating workpiece 1 and outer rim electrode 2.
Further, between described work piece holder 9 and the contact surface of workpiece 1 insulation, is between outer rim electrode 2 and the contact surface of electrode holder 10.
Further, also comprise the magnetic supply system 8 to supplementing conductive magnetic powder 3 between outer rim electrode 2 and the outer surface of workpiece 1, described magnetic supply system 8 is connected by circuit with control system 11.
Further, also comprise anti-powder cover 15, be arranged at the porch of the centre bore of described workpiece 1 upper end.
The present embodiment provide to complex-shaped outer surface carry out discharging the operating process of device of processing and operation principle 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 the outer surface surrounding to be processed of workpiece 1;
(2) supply appropriate conductive magnetic powder 3 by magnetic supply system 8 between outer rim electrode 2 and workpiece 1 outer surface to be processed, 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, and outer rim electrode 2 connects the negative pole (or according to the needs that reality is processed, 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 source 4) of processing power source 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 fitting with it, thus realize carrying out to workpiece 1 outer surface the object of processing of discharging, by controlled discharge parameter in processing, as electric discharge machining voltage, electric discharge processing electric current, pulse width, pulse spacing etc. control 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 supplemented can be controlled by control system 11 according to the processing situation of reality.
In process, conductive magnetic powder 3 can adapt to the outer surface of workpiece of various complicated shape automatically, at conductive magnetic powder 3 with the relative movement on workpiece 1 surface, carries out electric discharge processing to the outer surface of workpiece 1.
Conductive magnetic powder can discharge in the gas such as air, argon gas, also can discharge in the liquid such as deionized water, emulsion, this device can be used for the alligatoring, modification, strengthening etc. of various complex-shaped outer surface, also can be used for applying various complex-shaped outer surface.
In process, although the magnetic between outer rim electrode 2 and workpiece 1 constantly can be discharged effect and remove, but conductive magnetic powder 3 constantly supplements by magnetic supply system 8, make conductive magnetic powder effectively can keep the fit-state with surface of the work, thus ensure that processing can continue to carry out.
The anti-powder cover 15 being arranged on the porch of the centre bore of workpiece 1 upper end in process can effectively prevent conductive magnetic powder 3 from entering the endoporus of workpiece.
Work in-process is adapt to different processing request, the movement velocity of magnetic pole group 6 by control system 11 pairs of motors 13 be used for regulate.In addition, by the data collecting card monitoring processing signal of telecommunication, 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 the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (5)
1. carry out discharging to complex-shaped outer surface the device of processing, comprises processing power source (4), work piece holder (9) for clamping workpiece (1), it is characterized in that, also comprise:
Outer rim electrode (2), the outer surface surrounding to be processed of workpiece (1) is fixed on by electrode holder (10), surrounded by workpiece (1), described outer rim electrode (2) inwall and workpiece (1) outer rim are separated by certain gap;
Feed system (12), one end of described feed system (12) is provided with motor (13), sidewall to be provided with under the driving of motor (13) can in predetermined stroke range linearly reciprocating magnetic pole fixture (7);
Annular magnetic pole group (6), be fixedly installed on described magnetic pole fixture (7), and surround the outer wall of outer rim electrode (2) with being separated by certain interval, and under the drive of magnetic pole fixture (7), straight reciprocating motion can be done along the axis of outer rim electrode (2);
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 workpiece (1) and outer rim electrode (2) respectively, and being provided with between described outer rim electrode (2) and the outer surface to be processed of workpiece (1) by iron powder or nickel powder is the conductive magnetic powder (3) of material.
2. the device complex-shaped outer surface being carried out to electric discharge processing according to claim 1, is characterized in that: the bottom of described workpiece (1) is also provided with the insulation barrier (5) for isolating workpiece (1) and outer rim electrode (2).
3. the device of processing of carrying out discharging to complex-shaped outer surface according to claim 1, is characterized in that: to be insulation between the contact surface of described work piece holder (9) and workpiece (1), between outer rim electrode (2) and the contact surface of electrode holder (10).
4. the device complex-shaped outer surface being carried out to electric discharge processing according to claim 1, it is characterized in that: also comprise the magnetic supply system (8) to supplementing conductive magnetic powder (3) between outer rim electrode (2) and the outer surface of workpiece (1), described magnetic supply system (8) is connected by circuit with control system (11).
5. the device complex-shaped outer surface being carried out to electric discharge processing according to claim 1, is characterized in that: also comprise dust cover (15), is arranged at the porch of the centre bore of described workpiece (1) upper end.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| 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 |
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| CN103692034A CN103692034A (en) | 2014-04-02 |
| CN103692034B true CN103692034B (en) | 2016-01-06 |
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| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3552427B2 (en) * | 1996-11-18 | 2004-08-11 | 株式会社日立製作所 | Polishing method for semiconductor device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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