CN203578791U - Device for cutting black metal through diamond cutter - Google Patents
Device for cutting black metal through diamond cutter Download PDFInfo
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- CN203578791U CN203578791U CN201320805287.6U CN201320805287U CN203578791U CN 203578791 U CN203578791 U CN 203578791U CN 201320805287 U CN201320805287 U CN 201320805287U CN 203578791 U CN203578791 U CN 203578791U
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- ultrasonic vibration
- cutting
- plasma jet
- cold plasma
- diamond cutter
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Abstract
The utility model provides a device for cutting black metal through a diamond cutter, and belongs to the technical field of cutting technology. The device comprises a cold plasma jet generating device and an ultrasonic vibration device. The cold plasma jet generating device comprises a graphite needle bare electrode cold plasma jet generator, an adjustable flow meter, a pressure reducing valve, a working gas source, a high-voltage power supply and a guide pipe. The ultrasonic vibration device comprises an ultrasonic signal generator, an ultrasonic vibration device body and the diamond cutter. When the device is used for cutting, a contact interface can be regulated and controlled in real time, and the black metal does not need to be preprocessed. Through ultrasonic vibration assisted cutting, cutting force and cutting heat can be reduced so as to promote surface reaction of active particles in cold plasma jet and the fresh black metal. The active particles and other things in the cold plasma jet are gathered on the contact interface so as to prevent the diamond cutter from making direct contact with the black metal, and therefore the life of cutter is prolonged. The jet is lead out to form flexible plasma jet, the flexible plasma jet is conveyed to a cutting area, and therefore the device is safe and convenient to use.
Description
Technical field
The utility model relates to a kind of device for diamond cutter cutting ferrous metals, belongs to the Cutting Process technical field of machine-building.
Background technology
Diamond tool has the characteristics such as hardness is high, thermal conductivity is good, can grind into the ultra precision cutting cutter that cutting edge is extremely sharp.But when the high chemical affinity of itself and Fe atom causes cutting ferrous metals, easily there is graphitization, produce serious chemical abrasion, be difficult to be applied in ferrous metal ultra precision cutting.
Utilize ultrasonic vibration assisted machining ferrous metal, tool wear has larger improvement, but the raising of the chatter mark limiting surface quality that ultrasonic vibration produces.Utilize cooled with liquid nitrogen can effectively suppress diamond chemistry wearing and tearing, but workpiece is difficult to reach degree of precision because of cooling strain.To carrying out Diamond Cutting after ferrous metal surface nitriding, can alleviate tool wear, but pretreatment causes the problems such as workpiece deformation, be difficult to evade.Though said method can be realized, improve wear of diamond cutter, also changed surface of the work performance.
Publication number is that the utility model patent of CN102059350A has been introduced a kind of cutting process that uses dry type Static cooling, and dry type Static cooling technology is the green processing technology using the air stream through Corona discharge Treatment as cutting region lubrication cooling medium.Active particle in ionized air stream acts on surface of the work and can reduce the plastic deformation resistance of material, and cutter-work contact zone forms simultaneously border film and passivation layer have reduced frictional force, and cutting force is significantly reduced.But the degree of ionization of air is very low in dry type Static cooling technology, the active particle concentration in air-flow is also lower, cannot reach better effect.
Cold plasma is the lower plasma of a kind of macroscopical temperature, and therefore ion, electronics, excited atom, molecule and the free radical isoreactivity particle of enriched, are easier to react with contacted material surface.Cold-plasma jet is the jet-like cold plasma of the plasma discharge in short space being drawn to formation, its ion and metastable atom concentration is higher, electron temperature is high, macroscopical temperature is low, uniform parts is large, controllability is good, is conveniently applied among a small circle or Local treatment.During machining, active particle in cold plasma easily reacts with newborn ferrous metal surface and generates the material low with diamond chemistry compatibility under complicated heat and power effect, the active particle of ferrous metal surface absorption simultaneously can stop diamond cutter directly to contact with ferrous metal, suppresses the chemical abrasion of diamond cutter.
In addition, bare electrode is discharge generation cold plasma under atmospheric pressure, can prevent electrode and workpiece electrical discharge.The electric discharge of graphite needles bare electrode can produce the cold-plasma jet that contains active carbon particle, and during machining, the active carbon particle in jet is gathered in the contact interface of diamond cutter and ferrous metal, and carbon saturated environment is conducive to weaken diamond graphitization.
Ultrasonic vibration assisted machining can be avoided the high frequency friction of cutter and workpiece, improves workpiece surface quality, effectively prevents that point of a knife from collapsing broken, the generation of restrain built-up edge and scale, the residual stress of reduction surface of the work.
In the time of the auxiliary diamond cutter cutting of ultrasonic vibration, atmosphere cold plasma jet is sprayed to cutting region, cutter-work, cutter-bits interface are immersed in the high concentration active particle of cold-plasma jet, can effectively suppress the chemical abrasion of diamond cutter, play the lubrication effect better than dry type Static cooling technology simultaneously.The auxiliary diamond cutter cutting of ultrasonic vibration is in conjunction with atmosphere cold plasma jet regulation and control cutting region to suppress the correlative study of diamond cutter chemical abrasion, and so far there are no reports.
Utility model content
The utility model provides a kind of device for diamond cutter cutting ferrous metals, and ultrasonic vibration assisted machining is combined with atmosphere cold plasma jet regulation and control cutting interface phase.The utility model produces cold-plasma jet with the electric discharge of graphite needles bare electrode under atmospheric pressure.Cold plasma is drawn and is delivered to cutting zone with insulated conduit afterwards, can Effective Regulation diamond cutter and the contact interface of ferrous metal.Active carbon particle in jet is gathered in the contact interface of diamond cutter and ferrous metal, is conducive to weaken ferrous metal catalytic gold hard rock graphitization.The active particle of ferrous metal surface absorption can stop diamond cutter directly to contact with ferrous metal, suppresses the chemical abrasion of diamond cutter.Complicated thermodynamic activity when the cavitation of ultrasonic vibration forms high pressure and cutting promotes the active particle in cold plasma jet to react with newborn ferrous metal surface, generates the material lower than ferrous metal with diamond chemistry affinity.Ultrasonic vibration installation can carry out one dimension or two dimensional ultrasonic vibration assisted machining.
For a device for diamond cutter cutting ferrous metals, comprise cold-plasma jet generating means and ultrasonic vibration installation.
Cold plasma generating means comprises graphite needles bare electrode cold plasma fluid generator, adjustable flow meter, pressure-reducing valve, working gas source, high voltage source and conduit.Working gas source enters graphite needles bare electrode cold plasma fluid generator through pressure-reducing valve and adjustable flow meter; The high and low pressure output of high voltage source is connected with the electrode of graphite needles bare electrode cold plasma fluid generator respectively; Graphite needles bare electrode cold plasma fluid generator is fixed on lathe, can with diamond cutter synchro-feed; Conduit is arranged near point of a knife, and the just position to cutting region of outlet.
Ultrasonic vibration installation comprises ultrasonic signal generator, ultrasonic vibration installation and diamond cutter.Wherein, ultrasonic vibration installation consists of two vibrational systems, can independently control, and realizes One-Dimensional Ultrasonic vibration assisted machining or two dimensional ultrasonic vibration assisted machining.
During cutting, open pressure-reducing valve, adjust adjustable flow meter, working gas is entered in graphite needles bare electrode cold plasma fluid generator with suitable flow; Open high voltage source, improve gradually output voltage, until the outlet of conduit produces stable plasma jet; Position and the direction of adjusting conduit, can be immersed among cold-plasma jet cutting region cutter-work, cutter-bits contact interface.
Open ultrasonic signal generator, supersonic frequency electric signal transmission, to ultrasonic vibration installation, is converted to supersonic frequency mechanical oscillation by the supersonic frequency signal of telecommunication, drives diamond cutter to make supersonic frequency mechanical oscillation, cutting workpiece.
Now, can start tool setting, cutting.As interrupted cut or the interrupted surface of processing, cold-plasma jet and ultrasonic vibration installation can continuous operations, needn't close midway; As cut, temporarily stop or finishing, can directly close cold plasma generating means and ultrasonic vibration installation.Add man-hour next time, only cold plasma generating means and the direct unlatching of ultrasonic vibration installation can need be produced to cold-plasma jet and drive diamond cutter to do supersonic frequency mechanical oscillation.
Usefulness of the present utility model is: atmosphere cold plasma jet macroscopic view temperature is low, the wherein ion of enriched, electronics, excited atom, molecule and free radical isoreactivity particle, during cutting, can react with the unsalted surface of ferrous metal and generate and the active lower material of diamond chemistry, to contact interface real-time monitoring, and without ferrous metal is carried out to pretreatment.Ultrasonic vibration assisted machining can reduce cutting force, heat in metal cutting, promotes that the active particle in cold plasma jet reacts with fresh ferrous metal surface.Active carbon particle in jet etc. is gathered in contact interface, can stop diamond cutter directly to contact with ferrous metal, thereby improves cutter life.After jet is drawn to the flexible plasma jet of formation, be sent to cutting zone, it is safer, convenient to use, processing ease.The utility model also can regulate and control various metals, nonmetallic working angles, to environment and operating personnel, without any harm, is a kind of green cutting method.
Accompanying drawing explanation
Fig. 1 is ultrasonic vibration and cold-plasma jet assisted machining schematic diagram.
Fig. 2 is two-dimension vibration and cold-plasma jet assisted machining schematic diagram.
In figure: 1 is graphite needles bare electrode cold plasma fluid generator, and 2 is ultrasonic signal generator, and 3 is ultrasonic vibration installation, 4 is diamond cutter, and 5 is workpiece, 6 adjustable flow meters, 7 pressure-reducing valves, 8 working gas sources, 9 high voltage sourcies, 10 double-channel signal generators, 11 power amplifiers, 12 two dimensional ultrasonic vibration systems, 13 cold-plasma jets, 14 conduits.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, cold plasma generating means comprises graphite needles bare electrode cold plasma fluid generator 1, adjustable flow meter 6 pressure-reducing valves 7, working gas source 8, high voltage source 9, conduit 14.
Ultrasonic vibration installation comprises ultrasonic signal generator 2, ultrasonic vibration installation 3, diamond cutter 4.
Before cutting, open ultrasonic signal generator 2, supersonic frequency electric signal transmission, to ultrasonic vibration installation 3, is converted to supersonic frequency mechanical oscillation by the supersonic frequency signal of telecommunication, drives diamond cutter 4 to do supersonic frequency mechanical oscillation, cutting workpiece 5.Wherein ultrasonic vibration installation 3 consists of two vibrational systems, can independently control, and realizes One-Dimensional Ultrasonic vibration assisted machining or two dimensional ultrasonic vibration assisted machining.
Now, can start tool setting, cutting.As interrupted cut or the interrupted surface of processing, cold-plasma jet and ultrasonic vibration installation can continuous operations, needn't close midway; As cut, temporarily stop or finishing, can directly close cold plasma generating means and ultrasonic vibration installation.Add man-hour next time, only cold plasma generating means and the direct unlatching of ultrasonic vibration installation can need be produced to cold-plasma jet and drive diamond cutter to do supersonic frequency mechanical oscillation.
Specific embodiment:
The present embodiment is for realizing the auxiliary diamond cutter cutting ferrous metals of cold-plasma jet regulation and control two dimensional ultrasonic vibration.
Graphite needles bare electrode cold plasma fluid generator 1 is used the form of bare electrode electric discharge, the cold-plasma jet that this type of electrode produces not can and metal between there is arc through electric discharge.High voltage source 9 adopts intermediate frequency AC power source of sine wave, the high-voltage output end center connecting needle electrode of high voltage source 9, and low-voltage output connects injector electrode and ground connection.
Working gas 8 adopts the high pure nitrogen of purity 99.999%.
Open pressure-reducing valve 7, adjust adjustable flow meter 6, make flow reach 0.8m3/h; Open high voltage source 9, increase gradually electric power output voltage since 0, until cold-plasma jet 13 is spouting from conduit 14, jet temperature and room temperature are suitable.
Further adjust the orientation of conduit 14, make the tip of cutter 4 be immersed among cold-plasma jet 13 completely and do not affect the carrying out of cutting.
Open double-channel signal generator 10 and power amplifier 11.In double-channel signal generator 10, set amplitude and the frequency of two sinusoidal signals, after power amplifier 11 amplifies, transfer to ultrasonic vibration installation 12, diamond cutter 4 can produce supersonic frequency vibration along elliptical orbit workpiece 5 is carried out to turning processing.If a sinusoidal signal is only set in double- channel signal generator 10,11, power amplifier is opened one, and ultrasonic vibration installation, only along a direction vibration, is realized One-Dimensional Ultrasonic vibration assisted machining.
Adjust cold-plasma jet generating means and ultrasonic vibration installation, can open lathe, start machining.
Claims (1)
1. for a device for diamond cutter cutting ferrous metals, it is characterized in that: this device comprises cold-plasma jet generating means and ultrasonic vibration installation; Cold plasma generating means comprises graphite needles bare electrode cold plasma fluid generator, adjustable flow meter, pressure-reducing valve, working gas source, high voltage source and conduit; Working gas source enters graphite needles bare electrode cold plasma fluid generator through pressure-reducing valve and adjustable flow meter; The high and low pressure output of high voltage source is connected with the electrode of graphite needles bare electrode cold plasma fluid generator respectively; Graphite needles bare electrode cold plasma fluid generator is fixed on lathe, can with diamond cutter synchro-feed; Insulated conduit is arranged near point of a knife, and the just position to cutting region of outlet; Ultrasonic vibration installation comprises ultrasonic signal generator, ultrasonic vibration installation and diamond cutter; Wherein, ultrasonic vibration installation is realized One-Dimensional Ultrasonic vibration assisted machining or two dimensional ultrasonic vibration assisted machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805287.6U CN203578791U (en) | 2013-12-06 | 2013-12-06 | Device for cutting black metal through diamond cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805287.6U CN203578791U (en) | 2013-12-06 | 2013-12-06 | Device for cutting black metal through diamond cutter |
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| Publication Number | Publication Date |
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| CN203578791U true CN203578791U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320805287.6U Expired - Fee Related CN203578791U (en) | 2013-12-06 | 2013-12-06 | Device for cutting black metal through diamond cutter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944874A (en) * | 2017-04-17 | 2017-07-14 | 上海理工大学 | The new heat dissipating method of metal that a kind of utilization low-temperature current takes away heat |
| CN107160567A (en) * | 2017-07-04 | 2017-09-15 | 广东工业大学 | A kind of fine needle-like graphite electrode processing method |
| CN107263744A (en) * | 2017-07-04 | 2017-10-20 | 广东工业大学 | A kind of ultra-thin-wall graphite electrode processing method |
| CN110480365A (en) * | 2019-07-17 | 2019-11-22 | 深圳大学 | Turnery processing lathe and method for turning |
| CN111842940A (en) * | 2020-07-30 | 2020-10-30 | 中国工程物理研究院机械制造工艺研究所 | Ultra-precision machining method and device based on combined cutting |
| CN114875389A (en) * | 2022-04-25 | 2022-08-09 | 南京工业大学 | Plasma film deposition device and treatment method for irregular-shaped parts |
-
2013
- 2013-12-06 CN CN201320805287.6U patent/CN203578791U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944874A (en) * | 2017-04-17 | 2017-07-14 | 上海理工大学 | The new heat dissipating method of metal that a kind of utilization low-temperature current takes away heat |
| CN107160567A (en) * | 2017-07-04 | 2017-09-15 | 广东工业大学 | A kind of fine needle-like graphite electrode processing method |
| CN107263744A (en) * | 2017-07-04 | 2017-10-20 | 广东工业大学 | A kind of ultra-thin-wall graphite electrode processing method |
| CN110480365A (en) * | 2019-07-17 | 2019-11-22 | 深圳大学 | Turnery processing lathe and method for turning |
| CN111842940A (en) * | 2020-07-30 | 2020-10-30 | 中国工程物理研究院机械制造工艺研究所 | Ultra-precision machining method and device based on combined cutting |
| CN114875389A (en) * | 2022-04-25 | 2022-08-09 | 南京工业大学 | Plasma film deposition device and treatment method for irregular-shaped parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140507 Termination date: 20161206 |