CN110480034A - A kind of pulse current and ULTRASONIC COMPLEX assisted machining processing unit (plant) and method - Google Patents
A kind of pulse current and ULTRASONIC COMPLEX assisted machining processing unit (plant) and method Download PDFInfo
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- CN110480034A CN110480034A CN201910742013.9A CN201910742013A CN110480034A CN 110480034 A CN110480034 A CN 110480034A CN 201910742013 A CN201910742013 A CN 201910742013A CN 110480034 A CN110480034 A CN 110480034A
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- pulse current
- pulse
- assisted machining
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- 238000003754 machining Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 30
- 238000005520 cutting process Methods 0.000 claims abstract description 67
- 238000003672 processing method Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007769 metal material Substances 0.000 abstract description 3
- 238000005480 shot peening Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005459 micromachining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P25/00—Auxiliary treatment of workpieces, before or during machining operations, to facilitate the action of the tool or the attainment of a desired final condition of the work, e.g. relief of internal stress
- B23P25/003—Auxiliary treatment of workpieces, before or during machining operations, to facilitate the action of the tool or the attainment of a desired final condition of the work, e.g. relief of internal stress immediately preceding a cutting tool
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention discloses a kind of pulse currents and ULTRASONIC COMPLEX assisted machining processing unit (plant), it is made of ultrasonic vibration cutting device and Pulased power supply unit.Its ultrasonic vibration cutting device is made of sandwich piezoelectric transducer, supersonic generator, ultrasonic variable amplitude bar, bearing support, lathe tool；Pulased power supply unit is made of oscillograph and the pulse power, and the Pulased power supply unit, which is connected on workpiece in shot-peening, applies pulse current to the workpiece.The invention also discloses pulse currents and ULTRASONIC COMPLEX assisted machining processing method, it is to generate electro plastic effect to metal material using pulse current, improves the plasticity of workpiece, reduces the intensity of workpiece surface；It is vibrated using radial ultrasonic and generates interrupted cut, discontinuous contact is realized between cutter and workpiece, so that reaching reduces cutting force and cutting temperature, improved tool wear, improve the purpose of workpiece surface integrality.
Description
Technical field
The invention belongs to technical field of metal surface processing, are related to the Surface-micromachining process of complex parts, specifically include one
Kind pulse current and ULTRASONIC COMPLEX assisted machining processing unit (plant) and method.
Background technique
Requirement with fields such as aerospace, military projects to material property is higher and higher, various new with superior function
Material is more and more.However, since the raising of material property causes it to have extremely severe machinability.In order to
The surface quality for improving cutter life, improving workpiece, the various auxiliary such as liquid nitrogen cooling, laser heating, ultrasonic vibration, pulse current
Cutting process continuously emerges.Wherein continuous cutting is changed into interrupted cut by ultrasonic vibration cutting, can be effectively reduced cutting force
And cutting temperature, improve cutter life；Pulse current assisted machining efficiently uses the electro plastic effect of metal material, improves work
Part plasticity reduces workpiece surface hardness, reduces tool wear rate.However, single process is to titanium alloy, nickel-base alloy etc.
The improvement limitation of cutting of hardworking material processing performance.
Summary of the invention
In order to further improve the machinability of workpiece material, the invention patent provide a kind of pulse current with
ULTRASONIC COMPLEX assisted machining processing unit (plant) and method, the pulse power generate pulse current, are imitated using the Electroplastic of pulse current
It answers；Radial ultrasonic vibration cutting device makes cutter generate ultrasonic vibration, among the complete cycle of any one vibrocutting, because
For the effect of ultrasonic vibration, the effective time of actually Tool in Cutting is very short in process, allows cutter and workpiece chips
Realize therefore separation, cutter and workpiece chips and discontinuous contact, cutting heat can greatly reduce on part-time.The two work
Process it is compound, can further reduce cutting force and cutting temperature, improve workpiece surface integrality, improve cutting for workpiece
Cut processing performance.
The invention discloses a kind of pulse current and ULTRASONIC COMPLEX assisted machining processing unit (plant), used technical solutions
It is:
It is made of ultrasonic vibration cutting device and Pulased power supply unit；Wherein ultrasonic vibration cutting device is by sandwich piezoelectricity
Energy converter, supersonic generator, ultrasonic variable amplitude bar, cutting tool composition；The supersonic generator and the sandwich pressure
Electric transducer connection, provides ultrasonic electric signals for the sandwich piezoelectric transducer；The sandwich piezoelectric transducer and institute
Ultrasonic variable amplitude bar connection is stated, the sandwich piezoelectric transducer is connect with the cutting tool；The sandwich piezoelectric energy-conversion
The ultrasonic electric signals received are converted to ultrasonic mechanical vibration by device, and after ultrasonic variable amplitude bar amplification, output has
The ultrasonic mechanical vibration of certain amplitude is transmitted on cutting tool, realize cutting tool during cutting with the height of workpiece
Speed vibration；The Pulased power supply unit is connect with the workpiece, provides pulse current to the workpiece.
In a preferred embodiment of the invention, the cutting tool and the ultrasonic variable amplitude bar are embedded company
It connects, passes through bolt additional reinforcement.
In a preferred embodiment of the invention, the sandwich piezoelectric transducer and ultrasonic variable amplitude bar pass through hexagonal
Fillister head screw is fixed on a support frame.
In a preferred embodiment of the invention, the Pulased power supply unit is made of oscillograph and the pulse power；Institute
It states the pulse power to connect with the workpiece, provides pulse current, electric current and voltage in the oscillograph monitoring workpiece for workpiece.
In a preferred embodiment of the invention, the anode of the pulse power is connect by brush with workpiece, described
The cathode of the pulse power is connect by elastic force conducting bracket with the workpiece, and closed circuit is formed.
In a preferred embodiment of the invention, one end of the workpiece is clamped on the chuck of lathe, the chuck
Drive workpiece rotation.
In a preferred embodiment of the invention, the other end of the workpiece is withstood by the thimble of a lathe.
In a preferred embodiment of the invention, for security consideration, wherein the cutting tool and the bed of overtaking other vehicles
Between sound wave amplitude transformer, between the chuck and the workpiece, between the thimble and lathe, the elastic force conducting bracket and vehicle
Insulating part is encased inside between bed.
Pulse current disclosed by the invention and ULTRASONIC COMPLEX assisted machining processing method are carried out by following process,
Workpiece is installed on the chuck of lathe by process one, and the workpiece connects at chuck with the anode of the pulse power
It connects, is connected by elastic force conducting bracket with pulse power cathode at thimble；
Cutting tool is coupled ultrasonic vibration auxiliary cutting device and by the ultrasonic vibration auxiliary cutting device by process two
It is fixed on lathe saddle；
Process three opens supersonic generator, adjusts ultrasound parameter；
Process four opens the pulse power, adjusts the frequency and size of pulse current；
Process five opens lathe, adjusts cutting parameter, starts cutting workpiece.
In a preferred embodiment of the invention, the pulse current and ULTRASONIC COMPLEX assisted machining processing method
Technological parameter are as follows: 40~70m/min of cutting speed, 0.05~0.20mm/r of the amount of feeding, 0.5~2.0mm of back engagement of the cutting edge, pulse electricity
500~700HZ of source frequency, exports 30~60A of electric current, 30~60V of charging voltage, and the ultrasonic amplitude of energy converter output is 5~20 μ
M, ultrasonic frequency vibratory are 20~40KHz.
Compared with prior art, clear superiority of the invention is:
1, compared with single special process method, cutting force is smaller, cutting temperature is lower, and cutter life further mentions
Height, surface quality are higher；
2, the cutting of workpiece material can be significantly increased under relatively low workpiece heating temperature (≤100 DEG C)
Processing performance, while the bonding abrasion of cutter can be weakened to avoid the high-temperature oxydation phenomenon of workpiece surface.
The present invention is to generate electro plastic effect to metal material using pulse current, improves the plasticity of workpiece, reduces work
The intensity on part surface；It is vibrated using radial ultrasonic and generates interrupted cut, discontinuous contact is realized between cutter and workpiece, to reach
To cutting force and cutting temperature is reduced, improve tool wear, improves the purpose of workpiece surface integrality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pulse current of the present invention Yu ULTRASONIC COMPLEX assisted machining processing unit (plant).
Fig. 2 is the signal of the sandwich piezoelectric transducer of pulse current of the present invention and ULTRASONIC COMPLEX assisted machining processing unit (plant)
Figure.
Fig. 3 is the cross-sectional view of the sandwich piezoelectric transducer of pulse current and ULTRASONIC COMPLEX assisted machining processing unit (plant).
Fig. 4 is the structural representation of the ultrasonic variable amplitude bar of pulse current of the present invention and ULTRASONIC COMPLEX assisted machining processing unit (plant)
Figure.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the top view of Fig. 4.
Fig. 7 is the structural representation of the elastic force conducting bracket of pulse current of the present invention and ULTRASONIC COMPLEX assisted machining processing unit (plant)
Figure.
Specific embodiment
The present invention is described in detail with specific embodiment with reference to the accompanying drawing.
Referring to Fig. 1, a kind of pulse current and ULTRASONIC COMPLEX assisted machining processing unit (plant) shown in figure are cut by ultrasonic vibration
Turning device and Pulased power supply unit composition.
Ultrasonic vibration cutting device is by sandwich piezoelectric transducer 9, supersonic generator 7, ultrasonic variable amplitude bar 10, bearing
Frame 6, cutting tool 5 form.
Cutting tool 5 and the embedded connection of ultrasonic variable amplitude bar 10, the cutter shaft of cutting tool 5 are embedded into ultrasonic variable amplitude
On bar 10 (referring to fig. 4 to Fig. 6) and pass through bolt additional reinforcement.
Sandwich piezoelectric transducer 9 (referring to figs. 2 and 3) and ultrasonic variable amplitude bar 10 by hexagonal cylindrical head screw 8 and
Morpheme is fixed on a support frame 6
Supersonic generator 7 is connect with sandwich piezoelectric transducer 9, provides supersonic frequency electricity for sandwich piezoelectric transducer 9
Signal；The ultrasonic electric signals received are converted to ultrasonic mechanical vibration by sandwich piezoelectric transducer 9, through ultrasonic variable amplitude bar
After 10 amplifications, exporting, there is the ultrasonic mechanical vibration of certain amplitude to be transmitted on cutting tool 5, realizes cutting tool and is cutting
During vibration at high speed with workpiece 4.
Pulased power supply unit is made of oscillograph 1 and the pulse power 13.The anode of the pulse power 13 passes through brush 2 and workpiece
The cathode of 4 connections, the pulse power 13 is connect by elastic force conducting bracket 12 (referring to Fig. 7) with workpiece 4, and closed circuit is formed.Arteries and veins
Rushing power supply 13 is that workpiece 4 provides pulse current, and oscillograph 1 monitors the electric current and voltage in workpiece 4.
One end of workpiece 4 is clamped on the chuck 3 of lathe, and chuck 3 drives workpiece 4 to rotate, and the other end of workpiece 4 is by a vehicle
The thimble 11 of bed is withstood.
The present invention has certain risk because aliving, and needs to carry out insulation processing to a part of device, wherein
Between cutting tool 5 and a sound wave amplitude transformer 10 of overtaking other vehicles, between chuck 3 and workpiece 4, between thimble 13 and lathe, elastic force it is conductive
It is encased inside insulating part between bracket 12 and lathe, to ensure that electric current only recycles between workpiece 4 and the pulse power 13.
The method of pulse current and ULTRASONIC COMPLEX assisted machining processing unit (plant) of the invention is carried out by following process, process
One, workpiece 4 is installed on the chuck 3 of lathe, workpiece 4 is connected with the anode of the pulse power 13 by brush 2 at chuck 3
It connects, is connected by elastic force conducting bracket 12 with 13 cathode of pulse current at thimble 11；
Cutting tool 5 is coupled ultrasonic vibration auxiliary cutting device and is fixed on the knife rest of lathe by process two；
Process three opens lathe, adjusts running parameter.
Process four opens supersonic generator 7, starts cutting workpiece.
Process five, until when cutting tool 5 and workpiece 4 start to contact, open the pulse power 13, adjust the pulse power 13
The frequency and size of pulse current make 4 surface of workpiece generate pulse current.Workpiece 4 can be cut.
Technological parameter of the invention are as follows: 40~70m/min of cutting speed, 0.05~0.20mm/r of the amount of feeding, back engagement of the cutting edge
0.5~2.0mm, the pulse power 500~700HZ of frequency export 30~60A of electric current, 30~60V of charging voltage, energy converter output
Ultrasonic amplitude be 5~20 μm, ultrasonic frequency vibratory be 20~40KHz.
Claims (10)
1. a kind of pulse current and ULTRASONIC COMPLEX assisted machining processing unit (plant), which is characterized in that by ultrasonic vibration cutting device and
Pulased power supply unit composition；Wherein ultrasonic vibration cutting device is become by sandwich piezoelectric transducer, supersonic generator, ultrasonic wave
Width bar, cutting tool tool composition；The supersonic generator is connect with the sandwich piezoelectric transducer, is the sandwich pressure
Electric transducer provides ultrasonic electric signals；The sandwich piezoelectric transducer is connect with the ultrasonic variable amplitude bar, described sandwich
Formula PZT (piezoelectric transducer) is connect with the cutting tool；The sandwich piezoelectric transducer converts the ultrasonic electric signals received
For ultrasonic mechanical vibration, after ultrasonic variable amplitude bar amplification, exporting, there is the ultrasonic mechanical vibration of certain amplitude to be transmitted to
On cutting tool, realize cutting tool during cutting with the vibration at high speed of workpiece；The Pulased power supply unit and institute
Workpiece connection is stated, provides pulse current to the workpiece.
2. a kind of pulse current as described in claim 1 and ULTRASONIC COMPLEX assisted machining processing unit (plant), which is characterized in that described
Cutting tool and the ultrasonic variable amplitude bar are embedded connection, pass through bolt additional reinforcement.
3. a kind of pulse current as claimed in claim 2 and ULTRASONIC COMPLEX assisted machining processing unit (plant), which is characterized in that described
Sandwich piezoelectric transducer and ultrasonic variable amplitude bar are fixed on a support frame by hexagonal cylindrical head screw.
4. a kind of pulse current as described in claim 1 and ULTRASONIC COMPLEX assisted machining processing unit (plant), which is characterized in that described
Pulased power supply unit is made of oscillograph and the pulse power；The pulse power is connect with the workpiece, provides pulse for workpiece
Electric current, the oscillograph monitor the electric current and voltage in workpiece.
5. a kind of pulse current as claimed in claim 4 and ULTRASONIC COMPLEX assisted machining processing unit (plant), which is characterized in that described
The anode of the pulse power is connect by brush with workpiece, and the cathode of the pulse power passes through elastic force conducting bracket and the workpiece
Connection forms closed circuit.
6. a kind of pulse current and the processing of ULTRASONIC COMPLEX assisted machining as described in any one of claim 1 to 5 claim fill
It sets, which is characterized in that one end of the workpiece is clamped on the chuck of lathe, and the chuck drives workpiece rotation.
7. a kind of pulse current as claimed in claim 6 and ULTRASONIC COMPLEX assisted machining processing unit (plant), which is characterized in that described
The other end of workpiece is withstood by the thimble of a lathe.
8. a kind of pulse current as claimed in claim 7 and ULTRASONIC COMPLEX assisted machining processing unit (plant), which is characterized in that described
Between cutting tool and a sound wave amplitude transformer of overtaking other vehicles, between the chuck and the workpiece, between the thimble and lathe,
Insulating part is encased inside between the elastic force conducting bracket and lathe.
9. pulse current and ULTRASONIC COMPLEX assisted machining processing method, which is characterized in that carried out by following process:
Workpiece is installed on the chuck of lathe by process one, and the workpiece connects at chuck with the anode of the pulse power, is leaned on
It is connected by elastic force conducting bracket with pulse power cathode at nearly thimble；
Cutting tool is coupled ultrasonic vibration auxiliary cutting device and fixes the ultrasonic vibration auxiliary cutting device by process two
On lathe saddle；
Process three opens supersonic generator, adjusts ultrasound parameter；
Process four opens the pulse power, adjusts the frequency and size of pulse current；
Process five opens lathe, adjusts cutting parameter, starts cutting workpiece.
10. pulse current as claimed in claim 9 and ULTRASONIC COMPLEX assisted machining processing method, which is characterized in that described
The technological parameter of pulse current and ULTRASONIC COMPLEX assisted machining processing method are as follows: 40~70m/min of cutting speed, the amount of feeding 0.05
~0.20mm/r, 0.5~2.0mm of back engagement of the cutting edge, the pulse power 500~700HZ of frequency export 30~60A of electric current, charging voltage
30~60V, the ultrasonic amplitude of energy converter output are 5~20 μm, and ultrasonic frequency vibratory is 20~40KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742013.9A CN110480034A (en) | 2019-08-12 | 2019-08-12 | A kind of pulse current and ULTRASONIC COMPLEX assisted machining processing unit (plant) and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910742013.9A CN110480034A (en) | 2019-08-12 | 2019-08-12 | A kind of pulse current and ULTRASONIC COMPLEX assisted machining processing unit (plant) and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250746A (en) * | 2020-01-24 | 2020-06-09 | 北京理工大学 | Method and device for electromagnetic sound multi-field composite auxiliary drilling of tiny deep hole |
| CN111390200A (en) * | 2020-05-08 | 2020-07-10 | 太原理工大学 | One-dimensional ultrasonic linear vibration turning device |
| CN113798927A (en) * | 2020-06-15 | 2021-12-17 | 重庆大学 | Electric field auxiliary abrasive belt grinding method |
| CN114055285A (en) * | 2021-10-25 | 2022-02-18 | 深圳大学 | Electric pulse auxiliary processing device and method |
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| CN114055285A (en) * | 2021-10-25 | 2022-02-18 | 深圳大学 | Electric pulse auxiliary processing device and method |
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