CN105058247B - Fine abrasive water jet processes special ultrasonic torsion vibration workbench - Google Patents
Fine abrasive water jet processes special ultrasonic torsion vibration workbench Download PDFInfo
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- CN105058247B CN105058247B CN201510387980.XA CN201510387980A CN105058247B CN 105058247 B CN105058247 B CN 105058247B CN 201510387980 A CN201510387980 A CN 201510387980A CN 105058247 B CN105058247 B CN 105058247B
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Abstract
The present invention relates to special processing technology, especially a kind of fine abrasive water jet processes special ultrasonic torsion vibration workbench.It is made up of supersonic generator, 2 ultrasonic transducers, 2 extensional vibration ultrasonic transformers, torsional vibration horn, bases；Supersonic generator is connected with 2 ultrasonic transducers respectively by supersonic frequency electric energy transmission line；2 ultrasonic transducers are separately mounted in waterproof case；Erietiform layout type connecting screw hole, ring flange are set on torsional vibration horn, piece-holder platform is set in the output end of torsional vibration horn, and be connected with base by ring flange；One end of 2 extensional vibration ultrasonic transformers is connected with 2 ultrasonic transducers respectively, and the other end is connected from the two ends of torsional vibration horn respectively.The present invention effectively overcomes the scarce filling of prior art presence, improves crudy and efficiency, and precise machining process is carried out to the miniature workpiece of the labyrinths such as straight trough, helicla flute, end face revolving meber while realizing.
Description
First, technical field
The present invention relates to special processing technology, especially a kind of fine abrasive water jet processes special ultrasonic torsion vibration work
Make platform.
2nd, background technology
Abrasive Waterjet Machining Technology is a new special processing technology.Because abrasive water-jet is a kind of height of cold conditions
Beam, has extremely strong erosion effect to material, and does not change in erosion process mechanics, the physical and chemical properties of material,
It has the advantages that elaboration power it is small, without heat affected area, high in machining efficiency, wide adaptability, environmental protection.With being particularly suitable for
Process the difficult-to-machine material such as various temperature-sensitives, pressure-sensitive, fragility, compound, superhard.Abrasive waterjet cutting system mainly includes supercharging system
The module such as system, spraying system, feeding abrasive material system, motion and control system, collector.Fine abrasive water jet process technology is
A kind of new precision processing technology grown up on the basis of conventional abrasives water-jet technology.Fine abrasive water jet adds
In work, the jet pressure used is relatively low, and abrasive size is smaller, and mass flow, material removing rate are all lower than Conventional abrasives water jet,
Therefore be particularly suitable for carrying out Precision Machining to micro parts.
A kind of special process method that Ultrasonic machining technology has progressively grown up since being 1950s, in hardly possible processing
In material and Precision Machining, Ultrasonic machining has the incomparable excellent technological effect of other processing methods, application ten
Divide extensive.Ultrasonic machining refers to the characteristic using ultrasonic wave, and material stripping, cutting are carried out to workpiece by ultrasonic vibration or is welded
A kind of special process method of processing such as connect.Ultrasonic machining technology is particularly suitable for processing various hard brittle materials, and is not by material
No conductive limitation；Macroscopical cutting force on the surface of workpiece is small, and cutting temperature is low；Can processed complex die cavity and type face；Structure phase
To simple, reliability height and easy care；It can be used in combination with other a variety of processing modes.Ultrasonic machining unit is main by ultrasound
Wave producer, ultrasonic vibration system and machine body are constituted.
At present, fine abrasive water jet is in terms of the processing difficult-to-machine material such as hard brittle material, there is processing efficiency low and add
, there is the shortcomings of working ability is not enough to the labyrinth processing technology such as miniature straight trough, helicla flute in the problem of work is of poor quality.
3rd, the content of the invention
The purpose of the present invention be overcome existing fine abrasive water jet to exist in processing processing efficiency is low and crudy is poor,
It is difficult in adapt to process special there is provided a kind of fine abrasive water jet to the precision machined defect of workpiece progress of miniature complicated shape
Ultrasonic torsion vibration workbench.
The present invention as a subsystem in fine abrasive water jet system of processing, installed in fine abrasive water jet plus
In work system, its technical scheme is by supersonic generator, 2 ultrasonic transducers, 2 extensional vibration ultrasonic transformers, twisting vibrations
Ultrasonic transformer, base composition；Supersonic generator is connected with 2 ultrasonic transducers respectively by supersonic frequency electric energy transmission line；2
Ultrasonic transducer is separately mounted in waterproof case；Erietiform layout type connecting screw hole, method are set on torsional vibration horn
Blue disk, sets piece-holder platform, and be connected with base by ring flange in the output end of torsional vibration horn；2 are indulged
One end to vibration ultrasonic transformer is connected with 2 ultrasonic transducers respectively, and the other end is respectively from the two ends of torsional vibration horn
It is connected by erietiform layout type.
Invention mechanism：During work, by supersonic generator, ultrasonic transducer, extensional vibration ultrasonic transformer, twisting vibration luffing
Bar and base collectively constitute torsional vibration system, produce frequency stabilization, the adjustable supersonic frequency twisting vibration of shearing displacement, pass through folder
Superaudible twisting vibration is passed to workpiece by the platform that maintains an equal level, and then realizes that ultrasonic torsion vibration assist abrasive water-jet adds
Work.Industrial-frequency alternating current is converted into ultrasonic electric signals by supersonic generator, is inputted to ultrasound and is changed through supersonic frequency electric energy transmission line
Can device；Electric oscillator signal is converted into high frequency Small mechanical vibrations by transducer, will be small via two extensional vibration ultrasonic transformers
Vibration is amplified, and twisting vibration vibration source is formed by the extensional vibration ultrasonic transformer relative motion of erietiform layout type；Torsion is shaken
Twisting vibration is amplified by dynamic ultrasonic transformer, and twisting vibration and ultrasonic wave energy are passed into workpiece through Gripping platform.Pass through
The power output of supersonic generator is adjusted, the amplitude of ultrasonic transducer is changed, meets under different processing conditions to shaking
The requirement of width.
The beneficial effects of the invention are as follows special ultrasonic torsion vibration workbench is processed there is provided fine abrasive water jet, have
The defect that existing fine abrasive water jet processing hard brittle material is present is overcome to effect, fine abrasive water jet processing is improved hard
The quality and efficiency of crisp material, while realizing the miniature workpiece progress to labyrinths such as straight trough, helicla flute, end face revolving mebers
Precise machining process.Fine abrasive water jet processing technology mode thus is enriched, with important application value.
4th, illustrate
Fig. 1 is the front view of schematic structural view of the invention；
Fig. 2 is the top view of schematic structural view of the invention；
Fig. 3 is the stereogram of torsional vibration horn structural representation in the present invention；
Fig. 4 is the aluminium nitride ceramics initial surface microscopic appearance figure of embodiment 2；
Fig. 5 is that the aluminium nitride ceramics of embodiment 2 does not apply vibropolish surface microscopic topographic figure；
Fig. 6 is that the aluminium nitride ceramics of embodiment 2 applies vibropolish surface microscopic topographic figure.
Reference：
1st, ultrasonic transducer a 1-1, waterproof case a 2, ultrasonic transducer b 2-1, waterproof case b 3-1, extensional vibration
Ultrasonic transformer a 3-2, extensional vibration ultrasonic transformer b 4, torsional vibration horn 4-1, erietiform layout type connecting screw hole 4-2, method
Blue disk 4-3, piece-holder platform 4-3-1, clamping screw 5, base 6, supersonic generator 6-1, the transmission of supersonic frequency electric energy
Line a 6-2, supersonic frequency electric energy transmission line b
5th, embodiment
With reference to accompanying drawing be described in detail the present invention implementation process, as shown in Figure 1, Figure 2 and Figure 3.
The present invention as a subsystem in fine abrasive water jet system of processing, installed in fine abrasive water jet plus
In work system, by supersonic generator 6, ultrasonic transducer a 1 and ultrasonic transducer b 2, extensional vibration ultrasonic transformer a 3-1 and vertical
Constituted to vibration ultrasonic transformer b 3-2, torsional vibration horn 4, base 5；Supersonic generator 6 passes through supersonic frequency electric energy transmission line
A 6-1 and supersonic frequency electric energy transmission line b 6-2 are connected with ultrasonic transducer a 1 and ultrasonic transducer b 2 respectively；Ultrasonic transduction
Device a 1 is arranged in waterproof case a 1-1, ultrasonic transducer b 2 is arranged in waterproof case b 2-1；Torsional vibration horn 4
Upper setting erietiform layout type connecting screw hole 4-1, ring flange 4-2, workpiece clamp is set in the output end of torsional vibration horn 4
Maintain an equal level platform 4-3, and is connected by ring flange 4-3 with base 5；Extensional vibration ultrasonic transformer a 3-1 and extensional vibration ultrasonic transformer b
3-2 one end is connected with ultrasonic transducer a 1 and ultrasonic transducer b 2 respectively, and the other end is respectively from torsional vibration horn 4
Two ends be connected by erietiform layout type with studs.
The carrying out practically process of the present invention is that industrial-frequency alternating current is converted into supersonic frequency by supersonic generator 6 during work
Electric signal, respectively passes to ultrasonic electric signals through supersonic frequency electric energy transmission line a 6-1 and supersonic frequency electric energy transmission line b 6-2
Ultrasonic transducer a 1 and ultrasonic transducer b 2；Ultrasonic electric signals are changed by ultrasonic transducer a 1 and ultrasonic transducer b 2
For supersonic frequency mechanical oscillation, and extensional vibration ultrasonic transformer a 3-1 and extensional vibration ultrasonic transformer b 3-2 are passed to respectively；It is vertical
Small supersonic frequency mechanical oscillation are amplified respectively to vibration ultrasonic transformer a 3-1 and extensional vibration ultrasonic transformer b 3-2, longitudinally shaken
Dynamic ultrasonic transformer a 3-1 and extensional vibration ultrasonic transformer b 3-2 produce twisting vibration with erietiform layout type；Extensional vibration ultrasonic transformer
A 3-1 and extensional vibration ultrasonic transformer b 3-2 are connected by erietiform layout type connecting screw hole 4-1 with torsional vibration horn 4,
And twisting vibration is transferred to torsional vibration horn 4；Torsional vibration horn 4 further amplifies twisting vibration, and transmits
To piece-holder platform 4-3；Piece-holder platform 4-3 collectively constitutes thread connecting mode by clamping screw 4-3-1 and screw
Close to workpiece, reliable fixation is reached, amplitude and wave energy are reduced to greatest extent and is caused damage in workpiece bearing；Reverse
Vibration ultrasonic transformer 4 is connected by ring flange 4-2 with base 5.Wherein, waterproof case a 1-1 and waterproof case b 2-1 can be effective
Obstruct the erosion that water smoke and abrasive material splash to transducer in fine abrasive water jet processing, it is ensured that be not in that short circuit and device are rotten
Erosion；Base 5 plays a part of support vibrational system and connects fine abrasive water jet system of processing；Supersonic generator 6 it is defeated
Going out power can be adjusted in the range of 0-1000W, so as to change shaking for ultrasonic transducer a 1 and ultrasonic transducer b 2
Width, and then change the torsional amplitudes of torsional vibration system output, to realize to the requirement under different processing conditions to torsional amplitudes.
The power of the present invention is 1000W to the maximum, and frequency is 20KHz, and line shearing displacement control can be achieved in actual processing
Scope be 0-20 μm.
Embodiment 1：
Erosion processing is carried out to alumimium nitride ceramic sheet.The a diameter of 0.2mm of (operating) water nozzle of fine abrasive water jet system of processing,
Mulling pipe diameter is 0.76mm.Aluminium nitride ceramics thickness is 1mm, and material property is as shown in table 1.
The aluminium nitride ceramics material performance of table 1
Erosion processing conditions is as shown in table 2：
The erosion processing conditions of table 2
This example demonstrates that, fine abrasive water jet processing efficiency can be improved by applying ultrasonic torsion vibration, apply ultrasound
The erosion rate of fine abrasive water jet improves 30.24% after twisting vibration.
Embodiment 2：
Processing is polished to alumimium nitride ceramic sheet.Polishing condition is as shown in table 3：
The polishing condition of table 3
This example demonstrates that, when polishing hard brittle material applied to fine abrasive water jet, by applying ultrasonic torsion vibration
The generation of brittle fracture in polishing process can be reduced, polished surface quality is improved；Effect is shown in Fig. 6.
Claims (1)
1. fine abrasive water jet processes special ultrasonic torsion vibration workbench, installed in fine abrasive water jet system of processing
In, it is made up of supersonic generator, 2 ultrasonic transducers, 2 extensional vibration ultrasonic transformers, torsional vibration horn, bases；Its
It is characterized as that supersonic generator is connected with 2 ultrasonic transducers respectively by supersonic frequency electric energy transmission line；2 ultrasonic transducers
It is separately mounted in waterproof case；Erietiform layout type connecting screw hole, ring flange are set on torsional vibration horn, reversed
The output end for vibrating ultrasonic transformer sets piece-holder platform, and is connected by ring flange with base；2 extensional vibration ultrasonic transformers
One end be connected respectively with 2 ultrasonic transducers, the other end respectively from the two ends of torsional vibration horn by erietiform be laid out
Mode is connected.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107042422B (en) * | 2017-02-21 | 2019-06-14 | 集美大学 | A kind of torsional ultrasonic processing unit (plant) based on guide wire |
| CN107081682A (en) * | 2017-06-06 | 2017-08-22 | 浙江工业大学 | A kind of microfluidic channel processing method based on abrasive particle dynamic impulsion effect |
| CN107081681A (en) * | 2017-06-06 | 2017-08-22 | 浙江工业大学 | Microfluidic channel processing unit (plant) based on abrasive particle dynamic impulsion effect |
| CN108871768B (en) * | 2018-07-19 | 2020-08-04 | 湘潭大学 | Involute spline pair fretting wear test device under ultrasonic vibration |
| CN109531287B (en) * | 2018-11-08 | 2020-12-18 | 太原理工大学 | Precise finishing device for abrasive flow assisted by ultrasonic vibration on inner wall of circular tube |
| CN109604813A (en) * | 2018-12-27 | 2019-04-12 | 上海骄成机电设备有限公司 | A kind of rotary type ultraphonic wave transducer |
| CN115179178B (en) * | 2022-07-05 | 2023-11-14 | 华东理工大学 | Water jet strengthening and polishing integrated system and method for blade of impeller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004136397A (en) * | 2002-10-17 | 2004-05-13 | Disco Abrasive Syst Ltd | Water-jet machining device |
| CN100486772C (en) * | 2007-03-13 | 2009-05-13 | 山东大学 | Energy accumulating pulse micro feeding system for precise fine abrasive water jet |
| CN101676036B (en) * | 2008-09-18 | 2012-09-05 | 任吉林 | Ultrasonic pulse jet current ultrafine grinding device |
| CN203470949U (en) * | 2013-09-11 | 2014-03-12 | 北华航天工业学院 | Ultrasonic torsional vibration deep hole boring device |
| CN103753405A (en) * | 2014-01-14 | 2014-04-30 | 山东大学 | Ultrasonic reinforced abrasive water jet machining device |
| CN103831733B (en) * | 2014-02-21 | 2016-05-25 | 山东大学 | Fluidisation fine abrasive feedway is assisted in ultrasonic vibration |
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