CN109968443A - A kind of large amplitude indulges curved ultrasonic vibration cutter device - Google Patents

A kind of large amplitude indulges curved ultrasonic vibration cutter device Download PDF

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Publication number
CN109968443A
CN109968443A CN201910290186.1A CN201910290186A CN109968443A CN 109968443 A CN109968443 A CN 109968443A CN 201910290186 A CN201910290186 A CN 201910290186A CN 109968443 A CN109968443 A CN 109968443A
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CN
China
Prior art keywords
level
amplitude transformer
amplitude
ultrasonic vibration
cutter device
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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.)
Pending
Application number
CN201910290186.1A
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Chinese (zh)
Inventor
黄怀晶
王宇婷
殷振
高子萱
丁颖超
刘继承
张洋
邹林胜
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Suzhou University of Science and Technology
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Suzhou University of Science and Technology
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Application filed by Suzhou University of Science and Technology filed Critical Suzhou University of Science and Technology
Priority to CN201910290186.1A priority Critical patent/CN109968443A/en
Publication of CN109968443A publication Critical patent/CN109968443A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08Means for treating work or cutting member to facilitate cutting
    • B26D7/086Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Knives (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The invention discloses a kind of large amplitudes to indulge curved ultrasonic vibration cutter device comprising single-excitation ultrasonic oval vibration energy converter, level-one amplitude transformer, second level amplitude transformer, three-level amplitude transformer, cutter head, ultrasonic power and guard shield.The single-excitation ultrasonic oval vibration energy converter includes bolt and the back shroud being sequentially sleeved on bolt, piezoelectric ceramic piece, electrode slice and level-one amplitude transformer, and back shroud and level-one amplitude transformer, which are coupled back shroud, piezoelectric ceramic piece, electrode slice and level-one amplitude transformer by bolt, to be compressed;The front end of level-one amplitude transformer is arranged in second level amplitude transformer, the front end of second level amplitude transformer is arranged in three-level amplitude transformer, the front end of three-level amplitude transformer is arranged in cutter head, cutter head center axis and three-level amplitude transformer axis angle a are between 80 and 100 degrees, cutter head edge has cutting edge, and cutting edge edge has triangular sawtooth structure of the tip towards cutter head tip.The present invention has many advantages, such as that power capacity is big, structure is simple, energy conversion efficiency is high, amplitude is big, stable working performance.

Description

A kind of large amplitude indulges curved ultrasonic vibration cutter device
Technical field
The ultrasonic vibration field that the present invention relates to the use of piezoelectric ceramics inverse piezoelectric effect, it is vertical more particularly, to a kind of large amplitude Curved ultrasonic vibration cutter device.
Background technique
Ultrasonic cut is that the vibration of supersonic frequency is generated using ultrasonic piezoelectric transducer driving cutting tool, by collision and punching Energy transmission is hit to medium is cut, causes to be cut the broken novel process skill to reach cutting purpose of dielectric material fatigue Art.Ultrasonic cut more effectively, can be processed more accurately such as carbon fiber, glass fibre, Kafra fiber, various cellular composite materials With hard brittle material such as optical glass, silicon crystal, ceramics etc..In addition, since the cutting tool with contact biological tissue is with certain Water vapor in biological tissue, the fracture of albumen hydrogen bond, cell disruption, tissue can be made to be cut open, solidify and seal when ultrasonic frequency vibratory Thin vessels are closed, so ultrasonic cut technology can apply on medical surgery operation tool again.Currently, ultrasonic cut technology is extensive Applied to fields such as medical treatment, aerospace, chemical industry, agricultural, food and machinery.
In ultrasonic cut processing, in the case where other conditions are constant, the amplitude of cutting tool is bigger, ultrasonic piezoelectric energy-conversion The transfer efficiency of device is higher, and the speed of cutting processing can be improved in the amplitude for increasing cutting tool, therefore processes in ultrasonic cut In, the amplitude of cutting edge roundness is one of the important indicator of cutting tool performance, in order to promote ultrasonic vibration in each application field Performance, take various modes and the vibration amplitude of ultrasonic vibration improved.
Summary of the invention
The present invention provides a kind of novel large amplitudes to indulge curved ultrasonic vibration cutter device, in order to overcome existing super The lower deficiency of amplitude in acoustic vibration energy converter provides a kind of ultrasonic vibration cutter device of large magnitude.
A kind of large amplitude indulges curved ultrasonic vibration cutter device: including single-excitation ultrasonic oval vibration energy converter, level-one amplitude transformer, second level luffing Bar, three-level amplitude transformer, cutter head, ultrasonic power and guard shield, the single-excitation ultrasonic oval vibration energy converter are integrally in cylindrical body, packet Back shroud, piezoelectric ceramic piece, electrode slice and the level-one amplitude transformer for including bolt and being sequentially sleeved on bolt, back shroud and level-one become Width bar, which is coupled back shroud, piezoelectric ceramic piece, electrode slice and level-one amplitude transformer by bolt, to be compressed;The second level amplitude transformer is set It sets in the front end of level-one amplitude transformer, the front end of second level amplitude transformer is arranged in three-level amplitude transformer.
The front end of three-level amplitude transformer is arranged in cutter head, and cutter head center axis and three-level amplitude transformer axis angle a are in 80-100 Between degree, cutter head edge has cutting edge, and cutting edge edge has triangular sawtooth structure of the tip towards cutter head tip.
Further, three-level amplitude transformer and second level amplitude transformer can be fabricated to one and be integrally provided in level-one amplitude transformer Front end.
Further, the front end of level-one amplitude transformer can be arranged in second level amplitude transformer by welding.
Further, it is provided with ring flange in level-one amplitude transformer, the connection for single-excitation ultrasonic oval vibration energy converter and external structure It connects.
Further, a kind of large amplitude indulges curved ultrasonic vibration cutter device and there was only one group of extensional vibration piezoelectric ceramics Piece.
Further, a kind of large amplitude, which indulges curved ultrasonic vibration cutter device, only needs ultrasonic electric signal excitation all the way.
Further, it is 18kHz-40kHz that a kind of large amplitude, which indulges the operating frequency range of curved ultrasonic vibration cutter device,.
Further, single-excitation ultrasonic oval vibration energy converter and level-one amplitude transformer, second level amplitude transformer and the setting of three-level amplitude transformer periphery There is the shell with protection and gripping effect.
Further, in the section of level-one amplitude transformer, second level amplitude transformer and three-level amplitude transformer and cutter head and its shank Mutable site is provided with arc transition.
Present invention employs sandwich piezoelectric ultrasonic vibration energy converters and three-level luffing rod structure, can effectively improve transducing Device output power and luffing ratio can effectively increase the vibration amplitude of cutter in Same Efficieney, improve electro-mechanical and turn Efficiency is changed, which can be indulged to curved ultrasonic vibration cutter device and be used for carbon fiber, glass fibre, Kafra fiber, various bees The high efficiency cutting of the materials such as nest composite material, rubber, and stable working performance, have a extensive future.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention;
Fig. 2 is cutter head structure schematic diagram of the invention;
Fig. 3 is the top view of cutter head structure of the invention;
Fig. 4 is application example schematic diagram of the invention;
Figure label explanation: 1. bolts, 2. back shrouds, 3. piezoelectric ceramic pieces, 4. electrode slices, 5. level-one amplitude transformers, 6. flanges Disk, 7. second level amplitude transformers, 8. three-level amplitude transformers, 9. cutter heads, 10. shells, 11. ultrasonic-frequency power supplies;
91. tip is towards the triangular sawtooth structure at cutter head tip, 92. cutter head installing handles, 93. transition arcs.
Specific embodiment
As shown in connection with fig. 1, a kind of large amplitude indulges curved ultrasonic vibration cutter device: becoming including single-excitation ultrasonic oval vibration energy converter, level-one Width bar 6, second level amplitude transformer 7, three-level amplitude transformer 8, cutter head 9, ultrasonic power 11 and guard shield 10, the ultrasonic vibration are changed Energy device is integrally in cylindrical body comprising bolt 1 and the back shroud 2 being sequentially sleeved on bolt 1, piezoelectric ceramic piece 3, electrode slice 4 With level-one amplitude transformer 5, back shroud 1 and level-one amplitude transformer 5 pass through bolt 1 for back shroud 2, piezoelectric ceramic piece 3, electrode slice 4 and one The grade connection of amplitude transformer 5 compresses;The front end of level-one amplitude transformer 5 is arranged in the second level amplitude transformer 7, and the setting of three-level amplitude transformer 8 exists The front end of second level amplitude transformer 7.
In conjunction with shown in Fig. 2,3, the front end of three-level amplitude transformer 8, cutter head center axis and three-level amplitude transformer axis is arranged in cutter head 9 Wire clamp angle a is 90 degree, and 9 edge of cutter head has cutting edge, and cutting edge edge has triangular sawtooth knot of the tip towards cutter head tip Structure 91.
As shown in connection with fig. 4, ultrasonic-frequency power supply 11 is connected by conducting wire with the electrode of single-excitation ultrasonic oval vibration energy converter, and ultrasonic vibration is changed Energy device only has one group of extensional vibration piezoelectric ceramic piece 3, piezoelectric ceramic transducer section diameter 30mm, and piezoelectric ceramic piece 3 is PZT-8, Size are as follows:Ф30×Ф15×5, the piece number of piezoelectric ceramic piece 3 is 2.
The intrinsic frequency of single-excitation ultrasonic oval vibration energy converter is 29.86KHz, and impedance is 63 ohm, and dynamic electric resistor is 19 ohm, ultrasound 11 output voltage range of power supply is 0-400V, and current range 0-4A, output frequency is 29.86 ± 0.01KHz, and ultrasonic-frequency power supply 11 have the function of automatic frequency tracking in designated frequency range.
When operation, after the electrode slice 4 of single-excitation ultrasonic oval vibration energy converter accesses the electric signal that ultrasonic-frequency power supply 11 exports, since piezoelectricity is made pottery The inverse piezoelectric effect of tile 3, piezoelectric ceramic piece 3 will generate longitudinal ultrasonic vibration, i.e. single-excitation ultrasonic oval vibration energy converter is by ultrasonic-frequency power supply The electric energy of 11 outputs is converted to ultrasonic vibrational energy, and entire transducer system is driven to carry out longitudinal ultrasonic vibration, when ultrasound is shaken Energy is behind the end that single-excitation ultrasonic oval vibration energy converter is transmitted to level-one amplitude transformer 5, and original amplitude is one caused by piezoelectric ceramics The end of grade amplitude transformer 5 is amplified, and ultrasonic vibrational energy continues the end for being passed forward to second level amplitude transformer 7, and amplitude is another Secondary to be amplified, last ultrasonic vibrational energy continues the end for being passed forward to three-level amplitude transformer 8, and amplitude is put again Greatly, the extensional vibration of 8 end of three-level amplitude transformer, is transmitted to cutter head 9, is converted into the bending vibration of cutter head, knife has been further amplified The amplitude of head, and finally driving cutter head 9 carries out bending ultrasonic vibration.
When to single-excitation ultrasonic oval vibration energy converter on-load voltage, after operation reaches stable vibration state in 10 minutes, ultrasonic-frequency power supply 11 Output voltage is 220V, electric current 1.35A, the use of the amplitude that laser doppler vibrometer measures 8 end of three-level amplitude transformer is 142 Micron, the amplitude of 9 end of cutter head is 189 microns, and 8-20 microns of generally conventional vibration amplitude, the large amplitude indulge curved ultrasound vibration The vibration amplitude of dynamic cutter device improves 6-20 times.The cutter are held to cut 2CM ground paper honeycomb composite material, When applying the cutting force of about 1N, cutting speed can reach 5CM/min, and composite material cutting edge is generated without flash.

Claims (8)

1. a kind of large amplitude indulges curved ultrasonic vibration cutter device, it is characterised in that: a kind of large amplitude indulges curved ultrasonic vibration cutting dress It sets outer including single-excitation ultrasonic oval vibration energy converter, level-one amplitude transformer, second level amplitude transformer, three-level amplitude transformer, cutter head, ultrasonic power and protection Shell, the single-excitation ultrasonic oval vibration energy converter are integrally in cylindrical body comprising bolt and the back shroud being sequentially sleeved on bolt, piezoelectricity Potsherd, electrode slice and level-one amplitude transformer, back shroud and level-one amplitude transformer pass through bolt for back shroud, piezoelectric ceramic piece, electrode Piece and the connection of level-one amplitude transformer compress;The front end of level-one amplitude transformer, the setting of three-level amplitude transformer is arranged in the second level amplitude transformer In the front end of second level amplitude transformer, the front end of three-level amplitude transformer is arranged in cutter head, and cutter head center axis and three-level luffing rod axis press from both sides Between 80 and 100 degrees, cutter head edge has cutting edge to angle a, and cutting edge edge has triangular sawtooth of the tip towards cutter head tip Structure;At level-one amplitude transformer, second level amplitude transformer and three-level amplitude transformer and the abrupt change of cross-section position of cutter head and its shank, it is all provided with It is equipped with arc transition.
2. a kind of large amplitude according to claim 1 indulges curved ultrasonic vibration cutter device, it is characterised in that: the three-level Amplitude transformer and second level amplitude transformer are fabricated to the front end for being integrally provided in level-one amplitude transformer.
3. a kind of large amplitude according to claim 1 indulges curved ultrasonic vibration cutter device, it is characterised in that: the second level Amplitude transformer welds the front end that level-one amplitude transformer is arranged in.
4. a kind of large amplitude according to claim 1 indulges curved ultrasonic vibration cutter device, it is characterised in that: level-one amplitude transformer On be provided with ring flange, for coupling for single-excitation ultrasonic oval vibration energy converter and external structure.
5. a kind of large amplitude according to claim 1 indulges curved ultrasonic vibration cutter device, it is characterised in that: a kind of large amplitude It indulges curved ultrasonic vibration cutter device and there was only one group of extensional vibration piezoelectric ceramic piece.
6. a kind of large amplitude according to claim 1 indulges curved ultrasonic vibration cutter device, it is characterised in that: a kind of large amplitude Indulging curved ultrasonic vibration cutter device only needs ultrasonic electric signal excitation all the way.
7. a kind of large amplitude according to claim 1 indulges curved ultrasonic vibration cutter device, it is characterised in that: a kind of large amplitude The operating frequency range for indulging curved ultrasonic vibration cutter device is 18kHz-40kHz.
8. a kind of large amplitude according to claim 1 indulges curved ultrasonic vibration cutter device, it is characterised in that: ultrasonic vibration is changed Energy device and level-one amplitude transformer, second level amplitude transformer and three-level amplitude transformer periphery are provided with the shell with protection and gripping effect.
CN201910290186.1A 2019-04-11 2019-04-11 A kind of large amplitude indulges curved ultrasonic vibration cutter device Pending CN109968443A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111604249A (en) * 2020-04-15 2020-09-01 南京航空航天大学 Large-amplitude ultrasonic vibration platform and operation process thereof
CN112809219A (en) * 2021-02-05 2021-05-18 大连交通大学 Ultrasonic friction stir welding composite welding system
CN113714862A (en) * 2021-08-17 2021-11-30 南京航空航天大学 Large-amplitude ultrasonic vibration auxiliary grinding device based on vibration superposition and operation process thereof
CN114986992A (en) * 2022-05-24 2022-09-02 杭州瑞利超声科技有限公司 Blood bag is ultrasonic transducer and mould tool bit for takeover machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2337614A1 (en) * 1976-01-12 1977-08-05 Cavitron Corp Ultrasonic thread cutter for sewing machine - has flexible horse shoe-shaped cutting head coupled to piezoelectric crystal vibrator
CN2045345U (en) * 1988-10-24 1989-10-04 吉林工业大学 Ultrasonic vibration cutting device
CN1962137A (en) * 2006-11-27 2007-05-16 华南理工大学 Ultrasonic vibration cutting device used for lathe
CN102806361A (en) * 2012-08-31 2012-12-05 赵显华 Ultrasonic postpositional unidirectional vibration turning method
CN203369938U (en) * 2013-07-03 2014-01-01 桂林市啄木鸟医疗器械有限公司 Ultrasonic bone knife machine working tip
CN204133931U (en) * 2014-09-02 2015-02-04 深圳普门科技有限公司 A kind of ultrasonic transducer
CN205831876U (en) * 2016-06-08 2016-12-28 江苏水木天蓬科技有限公司 A kind of ultrasonic osteotome bit
CN107116019A (en) * 2017-06-27 2017-09-01 哈尔滨工业大学深圳研究生院 Bifrequency ultrasonic vibrating machining transducer and its mode of operation
DE202018103144U1 (en) * 2018-06-05 2018-07-04 ELKATEK UG (haftungsbeschränkt) & Co. KG Hand-held device for cutting textile fabrics by means of ultrasound

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2337614A1 (en) * 1976-01-12 1977-08-05 Cavitron Corp Ultrasonic thread cutter for sewing machine - has flexible horse shoe-shaped cutting head coupled to piezoelectric crystal vibrator
CN2045345U (en) * 1988-10-24 1989-10-04 吉林工业大学 Ultrasonic vibration cutting device
CN1962137A (en) * 2006-11-27 2007-05-16 华南理工大学 Ultrasonic vibration cutting device used for lathe
CN102806361A (en) * 2012-08-31 2012-12-05 赵显华 Ultrasonic postpositional unidirectional vibration turning method
CN203369938U (en) * 2013-07-03 2014-01-01 桂林市啄木鸟医疗器械有限公司 Ultrasonic bone knife machine working tip
CN204133931U (en) * 2014-09-02 2015-02-04 深圳普门科技有限公司 A kind of ultrasonic transducer
CN205831876U (en) * 2016-06-08 2016-12-28 江苏水木天蓬科技有限公司 A kind of ultrasonic osteotome bit
CN107116019A (en) * 2017-06-27 2017-09-01 哈尔滨工业大学深圳研究生院 Bifrequency ultrasonic vibrating machining transducer and its mode of operation
DE202018103144U1 (en) * 2018-06-05 2018-07-04 ELKATEK UG (haftungsbeschränkt) & Co. KG Hand-held device for cutting textile fabrics by means of ultrasound

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111604249A (en) * 2020-04-15 2020-09-01 南京航空航天大学 Large-amplitude ultrasonic vibration platform and operation process thereof
CN112809219A (en) * 2021-02-05 2021-05-18 大连交通大学 Ultrasonic friction stir welding composite welding system
CN113714862A (en) * 2021-08-17 2021-11-30 南京航空航天大学 Large-amplitude ultrasonic vibration auxiliary grinding device based on vibration superposition and operation process thereof
CN114986992A (en) * 2022-05-24 2022-09-02 杭州瑞利超声科技有限公司 Blood bag is ultrasonic transducer and mould tool bit for takeover machine
CN114986992B (en) * 2022-05-24 2024-04-23 杭州瑞利超声科技有限公司 Ultrasonic transducer and die cutter head combined device for blood bag connecting machine

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Application publication date: 20190705

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