CN103495782A - Device and method for electric machining with circular electrode and ultrasonic wave used for cutting - Google Patents
Device and method for electric machining with circular electrode and ultrasonic wave used for cutting Download PDFInfo
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- CN103495782A CN103495782A CN201310457160.4A CN201310457160A CN103495782A CN 103495782 A CN103495782 A CN 103495782A CN 201310457160 A CN201310457160 A CN 201310457160A CN 103495782 A CN103495782 A CN 103495782A
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Abstract
The invention relates to a device and method for electric machining with a circular electrode and ultrasonic waves used for cutting. A metal wire electrode used for electrode-wire cutting is replaced by the circular electrode so that the problem of wire penetration in the process of cutting can be solved. According to the wire passing speed in the process of wire-electrode cutting, a rotary speed is provided for the circular electrode so that the ionization electricity discharge phenomenon evenly and continuously caused by the circular electrode and metal can be generated, and therefore cutting machining is conducted on a workpiece. A prior wire-electrode cutting power source is improved and optimized so that the electricity discharge requirement of the circular electrode can be met. The parameters such as the rotary speed and the feeding amount of the circular electrode are controlled through an automatic electric control system so that automatic control can be achieved. The device control parameters are reasonable and the machining accuracy is high. Ultrasonic vibration is exerted on the workpiece so that the slag discharging function can be achieved and therefore fine slag generated by electricity discharge of the electrode and the workpiece is rapidly separated from the machined portions.
Description
Technical field
The present invention relates to a kind of cutting equipment for the long metal workpiece and method, particularly a kind of electromachining equipment cut with circular electrode and ultrasonic wave and method.
Background technology
When the long metal workpiece is carried out to cutting processing, with current conventional wire cutting method, need advanced eleven punch 11, working (machining) efficiency is low; And because the length restriction of wire cutting machine tool crossbeam causes and can't process.For the processing technology of this workpiece, the modes such as the laser cutting of employing, plasma cutting are arranged in the industry, but these two kinds of processing modes exist the cutting two ends that " match end " phenomenon is arranged, the width of cutting can not guarantee consistent problem.
The line cutting is a kind of of spark machined.Its principle is that the two poles of the earth of the pulse power are connect respectively to metal works and wire electrode, after workpiece is worn silk, produce the pulsed discharge phenomenon between the wire of shuttling movement and workpiece in working solution, due to the material on the galvanic action metal works, by ablation, the working solution that the regulus of generation bits are recycled is taken away.During the line cutting processing, by monitoring and the management and control of control system, adopt servo control mechanism to carry out, make the electric discharge phenomena uniformity of line cutting, the precision of machined surface is high.But the problem of its existence is: when cutting long metal workpiece, because the length restriction of wire cutting machine tool crossbeam can't be processed, so also need to be improved.
Summary of the invention
Purpose of the present invention is exactly in view of the foregoing defects the prior art has, a kind of electromachining equipment cut with circular electrode and ultrasonic wave and method are provided, change the line electrode of line cutting into circular electrode, according to the wire travelling speed of line cutting, give the rotating speed suitable with circular electrode simultaneously; Coordinate feed arrangement; Make circular electrode can be evenly, continuously and produce the ionic discharge phenomenon between workpiece, thereby realize the electric machining cutting.
A kind of electromachining equipment cut with circular electrode and ultrasonic wave, comprise power supply and servo control unit, workpiece, circular electrode, direct current generator, longitudinal feeding device, vertical feed apparatus, the working solution flusher, the workpiece pneumatic clamping device, the working solution accumulator tank, ultrasonic vibration installation, the working solution purification circulating device, column and base, power supply and servo control unit are installed on base, the working solution accumulator tank, ultrasonic vibration installation, the working solution purification circulating device, column, the top of described working solution accumulator tank is by workpiece pneumatic clamping device and column fixation workpiece, direct current generator is installed at middle part at column, the outer end of direct current generator connects circular electrode, the top of column is provided with transportable longitudinal feeding device and vertical feed apparatus, described power supply and servo control unit provide circular electrode to carry out the required pulse current parameter of electric machining, control direct current generator simultaneously and drive the rotating speed that circular electrode rotates, control the amount of feeding that longitudinal feeding device and vertical feed apparatus carry out length feed and vertical feed,
The working solution flusher is arranged on the top of direct current generator, by spraying pipeline, working solution is sprayed onto to machining area, medium as electric machining, and the slag produced while taking away electric machining bits, after working solution is reclaimed by the working solution accumulator tank of workpiece below, and recycle after being purified by the working solution purification circulating device of working solution accumulator tank one side.
Above-mentioned circular electrode adopts the copper-tungsten electrode, and wherein copper content is 40%, and the content of tungsten is 60%.
Above-mentioned working solution purification circulating device is arranged on base, and entrance point is communicated with the working solution accumulator tank by pipeline, and the port of export is communicated with the working solution flusher by pipeline, and the working solution flusher is sprayed onto the machining area of circular electrode by spraying pipeline.
On above-mentioned base, ultrasonic vibration installation is installed, and is connected with workpiece, make workpiece produce ultrasonic vibration, the circulation of cooperating liquid, the slag bits that produce when removing electric machining.
A kind of electric processing method cut with circular electrode and ultrasonic wave: power supply and servo control unit are controlled the required pulse current parameter of electric machining, and the both positive and negative polarity of pulse current is connected on respectively on workpiece and circular electrode; Control the rotating speed of direct current generator, the amount of feeding parameter of longitudinal feeding device and vertical feed apparatus simultaneously;
At first the feeding parameter is set, comprises length feed parameter and vertical feed parameter; The circular electrode rotating speed is set, operation workpiece air clamper clamping work pieces; Ultrasonic vibration installation is connected with workpiece;
Processing starts, direct current generator drives circular electrode and starts rotation, the working solution flusher sprays working solution to Working position, ultrasonic vibration installation is started working and is driven workpiece generation ultrasonic vibration, vertical feed apparatus drives the processing head according to the parameter set and carries out the vertical feed campaign, start TURP near workpiece and cut processing, after being worked into set depth, longitudinal feeding device drives head according to the parameter set and carries out the length feed motion, the Workpiece length direction is carried out to TURP and cut processing, after being worked into specific length, vertical feed apparatus drives the relative workpiece of head and moves upward, away from workpiece, machine,
Add man-hour, the working solution purification circulating device provides working solution, by the working solution flusher, Working position is sprayed, and is sprayed onto working solution on workpiece and flow to bottom and collect recovery by the working solution accumulator tank, extract and purified by the working solution purification circulating device again, again enter circulation;
Add man-hour, ultrasonic vibration installation drives workpiece and produces ultrasonic vibration, and the mobile working solution that cooperating liquid flusher sprays makes the slag bits break away from fast manufactured position.
Beneficial effect of the present invention is as follows:
The present invention adopts the parameters such as the rotating speed of electric control system controls circular electrode and the amount of feeding, make Rational Parameters, coordinate produce, process velocity is fast;
Adopt the circular electrode rotated in the present invention, the machining area width obtained after processing evenly, consistent, surface accuracy is high.This circular electrode adopts copper-tungsten to make, and through long period of experiments, uses, and adopts the tool-electrode of this material to be close to lossless; Guaranteed the repeatedly dimensional accuracy of processing;
The present invention uses checking through long period of experiments, and cycle working fluid can meet the requirement of this electric processing method, and chip removal simultaneously is effective, recycle, cost is low;
The present invention is directed to and add man-hour slag bits and get rid of difficult problem, be equipped with a ultrasonic vibration installation and be connected with workpiece, ultrasonic vibration installation drives workpiece and produces ultrasonic vibration, then the flowing of cooperating liquid, and makes the slag bits manufactured finedraw of disengaging fast;
The present invention can arrange multistation and process simultaneously, improves working (machining) efficiency.
The accompanying drawing explanation
Accompanying drawing 1 is front view of the present invention;
Accompanying drawing 2 is side views of the present invention;
Accompanying drawing 3 is overall structure schematic diagrames of the present invention;
In upper figure: power supply and servo control unit 1, workpiece 2, circular electrode 3, direct current generator 4, longitudinal feeding device 5, vertical feed apparatus 6, working solution flusher 7, workpiece pneumatic clamping device 8, working solution accumulator tank 9, ultrasonic vibration installation 10, working solution purification circulating device 11, column 12 and base 13.
The specific embodiment
1-3 by reference to the accompanying drawings, the invention will be further described:
A kind of electromachining equipment cut with circular electrode and ultrasonic wave, comprise power supply and servo control unit 1, workpiece 2, circular electrode 3, direct current generator 4, longitudinal feeding device 5, vertical feed apparatus 6, working solution flusher 7, workpiece pneumatic clamping device 8, working solution accumulator tank 9, ultrasonic vibration installation 10, working solution purification circulating device 11, column 12 and base 13, power supply and servo control unit 1 are installed on base 13, working solution accumulator tank 9, ultrasonic vibration installation 10, working solution purification circulating device 11, column 12, the top of described working solution accumulator tank 9 is by workpiece pneumatic clamping device 8 and column 12 fixation workpieces 2, direct current generator 4 is installed at middle part at column 12, the outer end of direct current generator 4 connects circular electrode 3, the top of column 12 is provided with transportable longitudinal feeding device 5 and vertical feed apparatus 6, described power supply and servo control unit 1 provide circular electrode 3 to carry out the required pulse current parameter of electric machining, control direct current generator 4 simultaneously and drive the rotating speed that circular electrode rotates, control the amount of feeding that longitudinal feeding device 5 and vertical feed apparatus 6 carry out length feed and vertical feed, adopt the parameter of optimizing, make to add pulse current, electrode rotating speed and the feeding Rational Parameters in man-hour.This processing method can arrange multistation simultaneously and process simultaneously, improves working (machining) efficiency.
Working solution flusher 7 is arranged on the top of direct current generator 4, by spraying pipeline, working solution is sprayed onto to machining area, medium as electric machining, and the slag produced while taking away electric machining bits, after working solution is reclaimed by the working solution accumulator tank 9 of workpiece below, and recycle after being purified by the working solution purification circulating device 11 of working solution accumulator tank 9 one sides.Wherein, working solution adopts water base line cutting working liquid, is the working solution commonly used of existing line cutting.
Wherein, circular electrode 3 adopts the copper-tungsten electrode, and wherein copper content is 40%, and the content of tungsten is 60%, and this electrode is close to lossless, the dimensional accuracy after guaranteeing repeatedly to process; The width minimum of cutting processing finedraw is 0.2mm, and there is not " match end " phenomenon in the two ends of seam.
In addition, working solution purification circulating device 11 is arranged on base 13, entrance point is communicated with working solution accumulator tank 9 by pipeline, and the port of export is communicated with working solution flusher 7 by pipeline, and working solution flusher 7 is sprayed onto the machining area of circular electrode 3 by spraying pipeline.
Also have: ultrasonic vibration installation 10 is installed on base, and is connected with workpiece 2, make workpiece 2 produce ultrasonic vibrations, the circulation of cooperating liquid, the slag produced when removing electric machining is considered to be worth doing.
A kind of electric processing method cut with circular electrode and ultrasonic wave: power supply and servo control unit 1 are controlled the required pulse current parameter of electric machining, and the both positive and negative polarity of pulse current is connected on respectively on workpiece 2 and circular electrode 3; Control the rotating speed of direct current generator 4, the amount of feeding parameter of longitudinal feeding device 5 and vertical feed apparatus 6 simultaneously;
At first the feeding parameter is set, comprises length feed parameter and vertical feed parameter; The circular electrode rotating speed is set, operation workpiece air clamper 8 clamping work pieces 2; Ultrasonic vibration installation 10 is connected with workpiece 2;
Processing starts, direct current generator 4 drives circular electrode 3 and starts rotation, 7 pairs of Working positions of working solution flusher spray working solution, ultrasonic vibration installation 10 is started working and is driven workpiece 2 generation ultrasonic vibrations, vertical feed apparatus 6 drives the processing head according to the parameter set and carries out the vertical feed campaign, start TURP near workpiece and cut processing, after being worked into set depth, longitudinal feeding device 5 drives head according to the parameter set and carries out the length feed motion, the Workpiece length direction is carried out to TURP and cut processing, after being worked into specific length, vertical feed apparatus 6 drives the relative workpiece of head and moves upward, away from workpiece, machine,
Add man-hour, working solution purification circulating device 11 provides working solution, by 7 pairs of Working positions of working solution flusher, sprayed, being sprayed onto working solution on workpiece flow to bottom and collects recovery by working solution accumulator tank 9, extract and purified by working solution purification circulating device 11 again, again enter circulation;
Add man-hour, ultrasonic vibration installation 10 drives workpiece and produces ultrasonic vibration, and the mobile working solution that cooperating liquid flusher 7 sprays makes the slag bits break away from fast manufactured position.
Operation principle of the present invention is:
The present invention is based on the basic principle of line cutting processing, is the technical a kind of extension of cutting on line.When cutting long metal workpiece, because the length restriction of wire cutting machine tool crossbeam can't be processed.For addressing this problem, the wire electrode of line cutting is converted into to a circular electrode, the problem of having exempted threading like this when cutting.Wire travelling speed while simultaneously cut according to line, give rotating speed of circular electrode, make circular electrode can be evenly, continuously with metal generation ionic discharge phenomenon, thereby workpiece is carried out to cutting processing.Improved on the basis of former wired cutting power supply and optimized the electric discharge demand that makes it to meet circular electrode.Adopt the parameters such as automation electric control system controls circular electrode rotating speed and the amount of feeding, realize automation control; Equipment is controlled Rational Parameters, and machining accuracy is high.For realizing the function of deslagging, apply ultrasonic vibration on workpiece, the position that the quick disengaging of tiny residue that electrode and workpiece electrical discharge are produced has been processed.
The power supply that the present invention is directed to the line cutting has carried out reasonably optimizing, pulse current during accurate controlled working; Adopt the parameters such as the rotating speed of electric control system controls circular electrode and the amount of feeding, make Rational Parameters, coordinate produce, process velocity is fast;
Adopt the circular electrode rotated in the present invention, the machining area width obtained after processing evenly, consistent, surface accuracy is high.This circular electrode adopts copper-tungsten to make, and through long-time actual the use, adopts the tool-electrode of this material to be close to lossless; Guaranteed the repeatedly dimensional accuracy of processing;
The present invention uses checking through long period of experiments, meets the requirement of this electric processing method, and chip removal simultaneously is effective, recycle, cost is low;
The present invention is directed to and add man-hour slag bits and get rid of difficult problem, be equipped with a ultrasonic vibration installation and be connected with workpiece, ultrasonic vibration installation drives workpiece and produces ultrasonic vibration, then the flowing of cooperating liquid, and makes the slag bits manufactured finedraw of disengaging fast;
The present invention can arrange multistation and process simultaneously, improves working (machining) efficiency.
This method is based on the basic principle of line cutting processing, is the technical a kind of extension of cutting on line.When cutting long metal workpiece, because the length restriction of wire cutting machine tool crossbeam can't be processed.For addressing this problem, the wire electrode of line cutting is converted into to a circular electrode, the problem of having exempted threading like this when cutting.Wire travelling speed while simultaneously cut according to line, give rotating speed of circular electrode, make circular electrode can be evenly, continuously with metal generation ionic discharge phenomenon, thereby workpiece is carried out to cutting processing.Improved on the basis of former wired cutting power supply and optimized the electric discharge demand that makes it to meet circular electrode.Adopt the parameters such as automation electric control system controls circular electrode rotating speed and the amount of feeding, realize automation control; Equipment is controlled Rational Parameters, and machining accuracy is high.For realizing the function of deslagging, apply ultrasonic vibration on workpiece, the position that the quick disengaging of tiny residue that electrode and workpiece electrical discharge are produced has been processed.
Claims (5)
1. the electromachining equipment cut with circular electrode and ultrasonic wave, is characterized in that: comprise power supply and servo control unit (1), workpiece (2), circular electrode (3), direct current generator (4), longitudinal feeding device (5), vertical feed apparatus (6), working solution flusher (7), workpiece pneumatic clamping device (8), working solution accumulator tank (9), ultrasonic vibration installation (10), working solution purification circulating device (11), column (12) and base (13), upper power supply and the servo control unit (1) installed of base (13), working solution accumulator tank (9), ultrasonic vibration installation (10), working solution purification circulating device (11), column (12), the top of described working solution accumulator tank (9) is by workpiece pneumatic clamping device (8) and column (12) fixation workpiece (2), direct current generator (4) is installed at middle part at column (12), the outer end of direct current generator (4) connects circular electrode (3), and the top of column (12) is provided with transportable longitudinal feeding device (5) and vertical feed apparatus (6), described power supply and servo control unit (1) provide circular electrode (3) to carry out the required pulse current parameter of electric machining, control direct current generator (4) simultaneously and drive the rotating speed that circular electrode rotates, control the amount of feeding that longitudinal feeding device (5) and vertical feed apparatus (6) carry out length feed and vertical feed,
Working solution flusher (7) is arranged on the top of direct current generator (4), by spraying pipeline, working solution is sprayed onto to machining area, medium as electric machining, and the slag produced while taking away electric machining bits, after working solution is reclaimed by the working solution accumulator tank (9) of workpiece below, and recycle after being purified by the working solution purification circulating device (11) of working solution accumulator tank (9) one sides.
2. the electromachining equipment cut with circular electrode and ultrasonic wave according to claim 1 is characterized in that: described circular electrode (3) adopts the copper-tungsten electrode, and wherein copper content is 40%, and the content of tungsten is 60%.
3. the electromachining equipment cut with circular electrode and ultrasonic wave according to claim 1, it is characterized in that: described working solution purification circulating device (11) is arranged on base (13), entrance point is communicated with working solution accumulator tank (9) by pipeline, the port of export is communicated with working solution flusher (7) by pipeline, and working solution flusher (7) is sprayed onto the machining area of circular electrode (3) by spraying pipeline.
4. the electromachining equipment cut with circular electrode and ultrasonic wave according to claim 1, it is characterized in that: ultrasonic vibration installation (10) is installed on described base, and be connected with workpiece (2), make workpiece (2) produce ultrasonic vibration, the circulation of cooperating liquid, the slag produced when removing electric machining bits.
5. the electric processing method cut with circular electrode and ultrasonic wave as described as claim 1-4, it is characterized in that: power supply and servo control unit (1) are controlled the required pulse current parameter of electric machining, and the both positive and negative polarity of pulse current is connected on respectively on workpiece (2) and circular electrode (3); Control the rotating speed of direct current generator (4), the amount of feeding parameter of longitudinal feeding device (5) and vertical feed apparatus (6) simultaneously;
At first the feeding parameter is set, comprises length feed parameter and vertical feed parameter; The circular electrode rotating speed is set, operation workpiece air clamper (8) clamping work pieces (2); Ultrasonic vibration installation (10) is connected with workpiece (2);
Processing starts, direct current generator (4) drives circular electrode (3) and starts rotation, working solution flusher (7) sprays working solution to Working position, ultrasonic vibration installation (10) is started working and is driven workpiece (2) generation ultrasonic vibration, vertical feed apparatus (6) drives the processing head according to the parameter set and carries out the vertical feed campaign, start TURP near workpiece and cut processing, after being worked into set depth, longitudinal feeding device (5) drives head according to the parameter set and carries out the length feed motion, the Workpiece length direction is carried out to TURP and cut processing, after being worked into specific length, vertical feed apparatus (6) drives the relative workpiece of head and moves upward, away from workpiece, machine,
Add man-hour, working solution purification circulating device (11) provides working solution, by working solution flusher (7), Working position is sprayed, being sprayed onto working solution on workpiece flow to bottom and collects recovery by working solution accumulator tank (9), extract and purified by working solution purification circulating device (11) again, again enter circulation;
Add man-hour, ultrasonic vibration installation (10) drives workpiece and produces ultrasonic vibration, and the mobile working solution that cooperating liquid flusher (7) sprays makes the slag bits break away from fast manufactured position.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215487A (en) * | 2015-10-23 | 2016-01-06 | 山东大学 | A kind of fine high-efficiency machining method towards non-conductive hard brittle material and device |
| CN113210778A (en) * | 2021-06-03 | 2021-08-06 | 金虎 | Continuity steel pipe cutting device for construction |
| CN115780925A (en) * | 2022-12-09 | 2023-03-14 | 苏州三光科技股份有限公司 | Method for realizing high-efficiency cutting of deep narrow slit electric spark by adopting high-speed rotation of wafer electrode |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215487A (en) * | 2015-10-23 | 2016-01-06 | 山东大学 | A kind of fine high-efficiency machining method towards non-conductive hard brittle material and device |
| CN113210778A (en) * | 2021-06-03 | 2021-08-06 | 金虎 | Continuity steel pipe cutting device for construction |
| CN113210778B (en) * | 2021-06-03 | 2022-10-11 | 广西国盾人防工程有限公司 | Continuity steel pipe cutting device for construction |
| CN115780925A (en) * | 2022-12-09 | 2023-03-14 | 苏州三光科技股份有限公司 | Method for realizing high-efficiency cutting of deep narrow slit electric spark by adopting high-speed rotation of wafer electrode |
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Application publication date: 20140108 |