CN104785873B - Electric spark aids in turning machining device - Google Patents
Electric spark aids in turning machining device Download PDFInfo
- Publication number
- CN104785873B CN104785873B CN201510196495.4A CN201510196495A CN104785873B CN 104785873 B CN104785873 B CN 104785873B CN 201510196495 A CN201510196495 A CN 201510196495A CN 104785873 B CN104785873 B CN 104785873B
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- CN
- China
- Prior art keywords
- electric spark
- negative electrode
- anode
- workpiece
- lathe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010892 electric spark Methods 0.000 title claims abstract description 87
- 238000007514 turning Methods 0.000 title claims abstract description 17
- 238000003754 machining Methods 0.000 title claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 9
- 239000007770 graphite material Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 14
- 238000012545 processing Methods 0.000 abstract description 13
- 238000005530 etching Methods 0.000 abstract description 5
- 238000009760 electrical discharge machining Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 238000002679 ablation Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003701 mechanical milling Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/04—Electrical discharge machining combined with mechanical working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Electric spark aids in turning machining device, is related to spark erosion equipment.Provided with lathe, voltage adjustable ac source, electric spark negative electrode, electric spark anode, vibrator, lathe tool and resistance；Workpiece is on lathe, electric spark negative electrode and electric spark anode connect the positive pole and negative pole of voltage adjustable ac source respectively, electric spark negative electrode and electric spark anode keep contacting with the workpiece rotated, vibrator is bundled on electric spark anode or electric spark negative electrode, the vibration of vibrator drives the electric spark anode bundled therewith or electric spark negative electrode to vibrate together, cause frequent contact and the disconnection between electric spark anode or electric spark negative electrode and the workpiece of rotation, make the frequent break-make of whole circuit, the break-make of circuit can produce electric spark effect；Lathe tool is located at below the workpiece of rotation, and resistance is serially connected in the loop between electric spark negative electrode and electric spark anode.The cutting burden of lathe tool is mitigated except effect by electric spark heat etching, the range of work is wide, processing efficiency and high precision, lathe tool wear extent are small.
Description
Technical field
The present invention relates to spark erosion equipment, turning machining device is aided in more particularly, to a kind of electric spark.
Background technology
With developing rapidly for modern industrial technology, induced one in industrial departments such as machine-building, electromechanics, weapons and aviations
Many high intensity, the new materials (such as high intensity, unimach, stainless steel, titanium alloy, chilled cast iron) of high rigidity, these
Material is referred to as difficult-to-machine material.Due to their high intensity, high rigidity and high-strain hardening rate, make its machinability notable
Deteriorate：Cutting force is big during processing, temperature rise, and tool wear is serious, and machined surface quality is poor, and metal-cutting waste is low.It is difficult to these
The processing of rapidoprint, people gradually recognize, have depended merely on general change cutting data, the preferably method of tool geometry angle
It is difficult to prove effective.The processability problems of this kind of material are solved, typically there are two methods at present：
1st, performance more excellent cutter material, such as ultrahard cutting tool material (diamond cutter and cubic boron nitride knife are developed
Tool), sintex and coated cutting tool etc..
2nd, the new processing method of research promotion, such as vibrocutting, hot machining, laser or ion speed heating processing side
Method.
Electrical discharge machining is to use the hot ablation metal of high temperature, is not limited by the hardness and intensity of workpiece material.
At present, there are Wire EDM turnery processing ([1] Zhang Ming, Han Rongjuan, Zhang Zhenling, Wire EDM turning machine
The research of bed and realization [J] manufacturing technologies and lathe, 2008 (11)：25-26；[2] Han Rongjuan, high speed travelling wire wire electric discharge is cut
Cut research [J] the agricultural equipments and Vehicle Engineering of turnery processing, 2009 (3)：31-35.), the device is in traditional two axles electricity fire
The live spindle of an axis direction paralleled by X axis is additionally arranged on discharge machine bed, its process principle is, by work when lathe works
Part is clamped on rotary main shaft, and processing workpiece also makees plane feed motion while circumgyration is made with workbench, this line-transect
Cutting off machine becomes the resultant motion with workpiece rotary motion by the branch line feed motion of original X, Y both direction, so that
The requirement of electric discharge turnery processing motion is met, is capable of the part of manufacturing complex shapes, is entirely electric spark ablation mechanism, does not have
Any mechanical turning effect.
([3] Gu Lin, Zhao Wansheng, Zhang Zhihua waits mist-jetting-ED-millings to process and its mechanism to electrical discharge milling machining
Analyze [J] electric machining and mould, 2006 (2):1-4), it is to replace milling cutter with the electrode of electric spark, is walked using digital control system
Knife, cutter (electrode) keeps certain interval between workpiece, is entirely that electric spark heat etching removes mechanism, makees without any mechanical milling
With.
The content of the invention
Turning machining device is aided in it is an object of the invention to provide a kind of electric spark.
The present invention is provided with lathe, voltage adjustable ac source, electric spark negative electrode, electric spark anode, vibrator, lathe tool and electricity
Resistance；
Workpiece is on lathe, and electric spark negative electrode and electric spark anode connect the positive pole of voltage adjustable ac source and born respectively
Pole, electric spark negative electrode and electric spark anode keep contacting with the workpiece rotated, and vibrator is bundled in electric spark anode or electricity fire
On flower negative electrode, the vibration of vibrator drives the electric spark anode bundled therewith or electric spark negative electrode to vibrate together, causes electric spark
Frequent contact and disconnection between anode or electric spark negative electrode and the workpiece of rotation, make the frequent break-make of whole circuit, circuit it is logical
It is disconnected to produce electric spark effect；Lathe tool is located at below the workpiece of rotation, and resistance is serially connected in electric spark negative electrode and electric spark anode
Between loop in.
The electric spark negative electrode and electric spark anode can use graphite material.
The resistance can be 5 Ω.
Though the present invention will introduce larger voltage, electric current, without doing extra insulation protection, between workpiece and milling machine
And cutter etc. need not all insulate, experiment is proved, is safe.
Compared with traditional turning equipment, the present invention possesses advantage following prominent：
1st, of the invention to be combined with traditional turnery processing, existing mechanical turning effect has the heat etching of electric spark except work again
With mitigating the cutting burden of lathe tool except effect by electric spark heat etching, the range of work is wide, high in machining efficiency.
2nd, because the mechanical performance relation of galvanic action and engineering material is little, therefore, as long as selecting suitable pulse electricity
Source, control pitting depth and pitting quantity just can be used to process the metal material of any high rigidity, high tenacity.
3rd, the machining accuracy of workpiece and surface quality are high, cut and use because electric spark removes portion of material, during actual turning
Amount reduction, cutting force and cutting heat very little, cause thermal deformation and force deformation all very littles, and internal stress less, thus can improve processing
Surface quality and machining accuracy.
4th, the wear extent of lathe tool is small, and during electric spark turning, tool wear significantly diminishes, and cutter life significantly extends, production
Cost is reduced.
Brief description of the drawings
Fig. 1 is the structure composition schematic diagram of the embodiment of the present invention.
Embodiment
Following examples will the present invention is further illustrated with reference to accompanying drawing.
Referring to Fig. 1, the embodiment of the present invention is provided with lathe 1, voltage adjustable ac source 2, electric spark negative electrode 3, electric spark sun
Pole 4, vibrator 5, lathe tool 6 and resistance 7.Workpiece A is on lathe 1, and electric spark negative electrode 3 and electric spark anode 4 connect voltage respectively
The positive pole and negative pole of adjustable ac source 2, electric spark negative electrode 3 and electric spark anode 4 keep contacting with the workpiece A rotated, shake
Dynamic device 5 is bundled on electric spark anode 4 or electric spark negative electrode 3, and the vibration of vibrator 5 drives the electric spark anode 4 bundled therewith
Or electric spark negative electrode 3 vibrates together, frequently contacting between electric spark anode 4 or electric spark negative electrode 3 and the workpiece A rotated is caused
And disconnection, make the frequent break-make of whole circuit, the break-make of circuit can produce electric spark effect；Lathe tool 6 is located under the workpiece A of rotation
Side, resistance 7 is serially connected in the loop between electric spark negative electrode 3 and electric spark anode 4.
The electric spark negative electrode and electric spark anode use graphite material, and the resistance 7 is 5 Ω.
In order to verify the feasibility and validity of the present invention, circuit is connected by Fig. 1, different rotating speed n, the amount of feeding is selected
F and cutting depth ap, with clip type YW145 turning insert, electric spark auxiliary turning is carried out to Gr12 hardened tools steel (57HRC) and is added
In work, process of the test, electrospark electrode generates bright electric spark really, with the increase of the voltage and current of application, electricity
Spark intensity also increases, and realizes electric spark ablation and mechanical turning while having an effect, this electric spark booster action is to subtracting
Small processing vibration, reduces cutting force and is beneficial to.
The key of the present invention is utilized in series resistor on loop, such as not series resistor, can equally produce electric spark, but
This sparking voltage only has within 10V, and electric current can reach 100~200A, because resistance in this case, simply electrode with
Contact resistance between workpiece, very little, so the power very little of this spark, power is also just small, after series resistor, for example, concatenates one
Individual 5 Ω resistance, plus 200V voltages, electric current 40A, power is up to 8000VA, and spark power is huge, certainly, and resistance be able to will also be born
8000VA power.Before workpiece will enter cutting, the surface clamping powered anode that cutter is contacted with workpiece produces electricity fire
Flower, removes principle, ablation or softening metal using the heat etching of electric spark, cutting can be just reduced during subsequently into turnery processing negative
Load, improves processing conditions.
Claims (3)
1. electric spark aid in turning machining device, it is characterised in that provided with lathe, voltage adjustable ac source, electric spark negative electrode,
Electric spark anode, vibrator, lathe tool and resistance；
Workpiece is on the lathe, and electric spark negative electrode and electric spark anode connect the positive pole and negative pole of voltage adjustable ac source respectively,
Electric spark negative electrode and electric spark anode keep contacting with the workpiece rotated, and vibrator is bundled in electric spark anode or electric spark is cloudy
On extremely, the vibration of vibrator drives the electric spark anode bundled therewith or electric spark negative electrode to vibrate together, causes electric spark anode
Or frequent contact and disconnection between electric spark negative electrode and the workpiece of rotation, make the frequent break-make of whole circuit, the break-make of circuit can
To produce electric spark effect；Lathe tool is located at below the workpiece of rotation, and resistance is serially connected between electric spark negative electrode and electric spark anode
Loop in.
2. electric spark as claimed in claim 1 aids in turning machining device, it is characterised in that the electric spark negative electrode and electric spark
Anode uses graphite material.
3. electric spark as claimed in claim 1 aids in turning machining device, it is characterised in that the resistance is 5 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196495.4A CN104785873B (en) | 2015-04-23 | 2015-04-23 | Electric spark aids in turning machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196495.4A CN104785873B (en) | 2015-04-23 | 2015-04-23 | Electric spark aids in turning machining device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104785873A CN104785873A (en) | 2015-07-22 |
| CN104785873B true CN104785873B (en) | 2017-07-11 |
Family
ID=53551303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510196495.4A Expired - Fee Related CN104785873B (en) | 2015-04-23 | 2015-04-23 | Electric spark aids in turning machining device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104785873B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020408B (en) * | 2016-01-29 | 2022-07-05 | 香港理工大学 | Milling device |
| CN107020427B (en) * | 2016-01-29 | 2022-07-08 | 香港理工大学 | Turning device |
| CN107962264A (en) * | 2017-12-03 | 2018-04-27 | 青岛联合智造科技有限公司 | With the numerically controlled lathe equipment that electrical discharge machining is combined |
| CN109909567B (en) * | 2019-03-15 | 2020-08-14 | 南京航空航天大学 | High-efficiency precise electrolytic mechanical combined milling method and device |
| CN110153516A (en) * | 2019-05-28 | 2019-08-23 | 哈尔滨理工大学 | A kind of electric spark auxiliary milling device |
| CN114406372B (en) * | 2022-01-20 | 2023-06-23 | 北京科技大学 | Self-discharge auxiliary processing device and processing method for weakly conductive material and application of self-discharge auxiliary processing device and processing method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6440273A (en) * | 1987-08-03 | 1989-02-10 | Takeo Nakagawa | Turning center with electric discharge truing/dressing device |
| CN1007135B (en) * | 1987-11-28 | 1990-03-14 | 北京市电加工研究所 | Compound processing method of electric spark and ultrasonic wave |
| CN102259214B (en) * | 2011-07-11 | 2012-11-14 | 南京航空航天大学 | Efficient machining method of controllable ablation metallic material based on electric-spark induction |
| CN102513622B (en) * | 2011-11-09 | 2014-03-12 | 扬州大学 | Micro and fine machining method for material difficult to machine |
| CN102974902B (en) * | 2012-11-27 | 2014-12-10 | 南京航空航天大学 | Electric spark induction controllable erosion and mechanical finishing compound cutting dual-servo feeding processing system |
| CN204524270U (en) * | 2015-04-23 | 2015-08-05 | 厦门大学 | A kind of electric spark assists turning machining device |
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2015
- 2015-04-23 CN CN201510196495.4A patent/CN104785873B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104785873A (en) | 2015-07-22 |
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| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 |