EP0594541B1 - Sonotrode pour un appareil de traitement à ultrason - Google Patents

Sonotrode pour un appareil de traitement à ultrason Download PDF

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Publication number
EP0594541B1
EP0594541B1 EP93810735A EP93810735A EP0594541B1 EP 0594541 B1 EP0594541 B1 EP 0594541B1 EP 93810735 A EP93810735 A EP 93810735A EP 93810735 A EP93810735 A EP 93810735A EP 0594541 B1 EP0594541 B1 EP 0594541B1
Authority
EP
European Patent Office
Prior art keywords
sonotrode
axis
outlet
inlet
tool
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 - Lifetime
Application number
EP93810735A
Other languages
German (de)
English (en)
Other versions
EP0594541A2 (fr
EP0594541A3 (en
Inventor
Michael Bory
Hans Bauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duerr Dental SE
Original Assignee
Duerr Dental SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Duerr Dental SE filed Critical Duerr Dental SE
Publication of EP0594541A2 publication Critical patent/EP0594541A2/fr
Publication of EP0594541A3 publication Critical patent/EP0594541A3/de
Application granted granted Critical
Publication of EP0594541B1 publication Critical patent/EP0594541B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency

Definitions

  • Ultrasonic processing devices usually consist of e.g. piezoelectric vibration exciter, a coaxial sonotrode and a coaxial tool.
  • the sonotrode is a rotationally symmetrical body and acts as a spring-mass system.
  • the vibration exciter excites them to longitudinal natural vibrations, which form around a node level.
  • the sonotrode often has a larger cross section on the input side than on the output side. As a result, it acts as an amplitude amplifier.
  • Such a sonotrode is known from US-A-3,015,961.
  • the known ultrasonic devices build relatively long in the direction of the oscillation axis, so that workpieces that are difficult to access are often difficult to machine.
  • the present invention has for its object to provide a sonotrode that allows a shorter length in the direction of vibration of the tool. This object is achieved by the combination of features of the claims.
  • the vibration exciter 1 consists of a vibration exciter 1 with a piezo-quartz thickness transducer 2 and two metal cylinders 3 connected at the end, an amplifier or booster 4, a sonotrode 5 and a tool 6.
  • the vibration exciter is cylindrical and has longitudinal longitudinal harmonic vibrations its axis 10 with a node plane in its axial longitudinal center. The maximum amplitude occurs on the end faces of the vibration exciter 1.
  • On one end face is the thicker end face than the body of revolution trained, coaxial amplifier 4 connected.
  • the amplifier 4 is preferably tapered towards the other end face and also oscillates longitudinally about a node plane at its natural frequency. The vibration amplitude is increased by the taper.
  • the sonotrode 5 is designed as an annular bending oscillator with a cylindrical outer surface 15 and a coaxial, cylindrical inner surface 16.
  • the thinner end of the amplifier 4 is screwed into an inlet 17 of the sonotrode, which is designed as an internal thread.
  • the input 17 is coaxial to the axis 10 and radially to the cylindrical outer surface 15.
  • the output 18 of the sonotrode 5 is designed as a bore into which the tubular tool 6 is firmly connected (for example soldered).
  • the output axis 19 is also radial and intersects the input axis 10 at an angle of approximately 90 °.
  • a coaxial tube 20 is formed on the sonotrode 4 and communicates with a bore 21 passing through the vibration exciter 1 and the amplifier 4.
  • the tube 20 is connected to the axial bore 23 of the tool 6 via a hose 22.
  • abrasive can be sucked out of the end face 24 of the tool 6, which acts as a working surface, or can be supplied to this end face 24 through the bore 21, the hose 22 and the hollow tool 6.
  • the natural bending frequency of the sonotrode 5 is equal to the longitudinal natural vibration frequency of the amplifier 4 and the vibration exciter 1.
  • the sonotrode 5 oscillates around four nodes 33 to 36.
  • FIG. 2 shows the oscillation of the neutral fiber of the sonotrode 5. If the cross section of the sonotrode 5 is the same over the entire circumference, the output amplitude 31 of the sonotrode oscillation is equal to the input amplitude 30 (apart from friction losses). As can be seen, the output amplitude is maximum when the output axis 19 is perpendicular to the input axis 10, but the output amplitude is still close to the maximum value when the angle is slight, e.g. Deviates from this value by ⁇ 20 °.
  • the ring cross section of the sonotrode 5 increases from the exit 18 on both sides to the diametrically opposite point.
  • An advantageous embodiment of this variant is shown in FIG. 3:
  • the sonotrode 5 is wedge-shaped when projected in the direction of the input axis 10. As a result, the sonotrode 5 acts as an amplifier and the output amplitude 31 is greater than the input amplitude 30.
  • FIG. 4 shows a variant of the sonotrode 5 in which the tool 6 is detachably connected to the sonotrode, for example screwed into a nut thread 18 'from above.
  • the tool 6 is detachably connected to the sonotrode, for example screwed into a nut thread 18 'from above.
  • an abrasive supply through an additional bore 40 in the amplifier 4 a further hose 41 and an annular nozzle 42 surrounding the tool 6 may be provided.
  • the inventive design of the sonotrode 5 as an annular bending oscillator ensures that the tool 6 oscillates at an angle to the axis 10 of the vibration exciter 1 and amplifier 4. This allows workpieces that are difficult to access to be processed efficiently using ultrasound.
  • the tool 6 is to vibrate laterally in addition to the longitudinal vibrations, it can be angled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Saccharide Compounds (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Surgical Instruments (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (7)

  1. Sonotrode pour un appareil d'usinage par ultrasons, comprenant une entrée (17) destinée au raccordement d'un générateur de vibrations (1, 4) et une sortie (18) destinée au raccordement d'un outil (6), caractérisée par le fait que la sonotrode (5) est réalisée sous la forme d'un vibrateur en flexion d'une manière telle que la sortie (18) vibre le long de son axe de sortie (19) lorsque l'entrée (17) est excitée le long de son axe d'entrée (10) sur l'une des fréquences propres de flexion de la sonotrode (5), l'axe d'entrée (10) et l'axe de sortie (19) se coupant sous un angle différent de zéro.
  2. Sonotrode selon la revendication 1, dans laquelle elle est annulaire, et l'axe d'entrée (10) et l'axe de sortie (19) s'étendent radialement.
  3. Sonotrode selon la revendication 2, dans laquelle la section transversale de la bague formée par la sonotrode (5) augmente constamment dans les deux directions depuis la sortie (18) jusqu'à l'endroit diamétralement opposé.
  4. Sonotrode selon la revendication 2 ou 3, dans laquelle elle présente une surface extérieure cylindrique de révolution (15) et une surface intérieure cylindrique de révolution coaxiale (16).
  5. Sonotrode selon la revendication 3 ou 4, dans laquelle elle est réalisée en forme de coin lorsqu'elle est vue en projection parallèlement à l'axe d'entrée (10).
  6. Sonotrode selon l'une des revendications 1 à 5, dans laquelle l'axe d'entrée (10) et l'axe de sortie (19) se coupent sous un angle compris entre 70° et 110°.
  7. Sonotrode selon l'une des revendications 1 à 6, dans laquelle elle présente une buse annulaire (42) qui est coaxiale par rapport à la sortie (18) et qui est destinée à l'amenée d'abrasif.
EP93810735A 1992-10-21 1993-10-20 Sonotrode pour un appareil de traitement à ultrason Expired - Lifetime EP0594541B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3258/92 1992-10-21
CH03258/92A CH689445A5 (de) 1992-10-21 1992-10-21 Sonotrode für ein Ultraschall-Bearbeitungsgerät.

Publications (3)

Publication Number Publication Date
EP0594541A2 EP0594541A2 (fr) 1994-04-27
EP0594541A3 EP0594541A3 (en) 1994-09-21
EP0594541B1 true EP0594541B1 (fr) 1997-01-15

Family

ID=4252090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810735A Expired - Lifetime EP0594541B1 (fr) 1992-10-21 1993-10-20 Sonotrode pour un appareil de traitement à ultrason

Country Status (7)

Country Link
US (1) US5426341A (fr)
EP (1) EP0594541B1 (fr)
JP (1) JP3739418B2 (fr)
AT (1) ATE147666T1 (fr)
CH (1) CH689445A5 (fr)
DE (1) DE59305134D1 (fr)
ES (1) ES2098711T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105349A1 (de) 2012-06-20 2013-12-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Ultraschallgestütztes Verfahren, zur Durchführung des Verfahrens geeignetes Ultraschall-Schwingsystem sowie Sonotrode

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DE4406323C2 (de) * 1994-02-27 1997-07-17 Hahn Rainer Ultraschall-Handstück zur abtragenden Behandlung von natürlichen Hartgeweben sowie Zahn- und Knochenersatzmaterialien
ES2216273T3 (es) 1997-03-21 2004-10-16 Woodwelding Ag Procedimiento para anchar elementos de union en un material que comprende poros o cavidades, y elementos de union para el incicado anclaje.
US6372066B1 (en) * 1999-05-06 2002-04-16 New Transducers Limited Vibration exciter
CH694058A5 (de) * 1999-06-18 2004-06-30 Woodwelding Ag Stoffschlüssiges Verbinden.
US6752815B2 (en) * 2001-01-31 2004-06-22 Ethicon Endo-Surgery, Inc. Method and waveguides for changing the direction of longitudinal vibrations
KR100925073B1 (ko) 2001-03-02 2009-11-04 부트벨딩 아게 조직부들을 결합하기 위한 이식물, 장치 및 방법
US7008226B2 (en) * 2002-08-23 2006-03-07 Woodwelding Ag Implant, in particular a dental implant
US6955540B2 (en) * 2002-08-23 2005-10-18 Woodwelding Ag Preparation for being fastened on a natural tooth part or tooth and corresponding fastening method
US6877894B2 (en) 2002-09-24 2005-04-12 Siemens Westinghouse Power Corporation Self-aligning apparatus for acoustic thermography
EP1648314A2 (fr) * 2003-07-31 2006-04-26 Woodwelding AG Procede de stimulation de la regeneration tissulaire sur des surfaces de blessures, et dispositif et instrument de traitement ou implant pour la mise en oeuvre de ce procede
BRPI0507907A (pt) * 2004-02-20 2007-07-10 Woodwelding Ag implante a ser implantado em tecido ósseo e métodos para a produção e implantação do mesmo
KR100862698B1 (ko) * 2006-02-14 2008-10-10 (주)현대팩 친환경파레트용 자재
WO2007101362A2 (fr) 2006-03-09 2007-09-13 Woodwelding Ag Déviation d'oscillations mécaniques
DE102006011593A1 (de) * 2006-03-10 2007-09-13 Dürr Dental GmbH & Co. KG Elastisch biegbarer Koppelkörper
EP2146660B1 (fr) * 2007-04-19 2015-07-29 Mectron S.p.A. Dipôle résonnant à fréquence d'ultrasons pour une utilisation médicale
KR101831319B1 (ko) 2011-03-11 2018-02-22 넥실리스 아게 초음파 에너지 도입용 소노트로드
WO2013117509A2 (fr) 2012-02-10 2013-08-15 Nexilis Ag C/O Bdo Ag Sonotrode pour l'application d'énergie ultrasonore
DE102013109504B4 (de) * 2013-08-30 2016-07-14 Technische Universität Wien Mechanisches Prüfverfahren für Komponenten der Elektronik
US10300453B2 (en) 2013-10-16 2019-05-28 University Of Iowa Research Foundation Thin layer sonochemistry and sonoelectrochemistry devices and methods

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US3209447A (en) * 1962-03-12 1965-10-05 Aeroprojects Inc Transducer coupling system
SE342154B (fr) * 1967-12-25 1972-01-31 Nippon Kokan Kk
JPS5237952B2 (fr) * 1973-03-30 1977-09-26
US3926357A (en) * 1973-10-09 1975-12-16 Du Pont Process for applying contacts
FR2285188A1 (fr) * 1974-09-23 1976-04-16 Masao Inoue Generateur de vibrations utilisant des plaques perforees ou non
FR2354827A1 (fr) * 1976-06-16 1978-01-13 Mecasonic Sa Dispositif producteur d'ultra-sons utilisable notamment dans l'industrie des matieres thermoplastiques
US4088257A (en) * 1977-02-14 1978-05-09 Christiana Metals Corporation Ultrasonic spot welder
DE3335254A1 (de) * 1983-09-29 1985-04-18 Schunk Ultraschalltechnik Gmbh, 8750 Aschaffenburg Vorrichtung zum verbinden bzw. verdichten elektrischer leiter
JPS60229679A (ja) * 1984-04-26 1985-11-15 Ricoh Co Ltd 振動片形超音波モ−タ
DE3710603C2 (de) * 1986-10-23 1994-02-24 Stapla Ultraschalltechnik Gmbh Insbesondere zum Verbinden elektrischer Leiter bestimmte Vorrichtung
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DE4128858C1 (fr) * 1991-08-30 1993-01-21 Stapla Ultraschall-Technik Gmbh, 6092 Kelsterbach, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105349A1 (de) 2012-06-20 2013-12-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Ultraschallgestütztes Verfahren, zur Durchführung des Verfahrens geeignetes Ultraschall-Schwingsystem sowie Sonotrode

Also Published As

Publication number Publication date
ES2098711T3 (es) 1997-05-01
US5426341A (en) 1995-06-20
EP0594541A2 (fr) 1994-04-27
DE59305134D1 (de) 1997-02-27
JP3739418B2 (ja) 2006-01-25
ATE147666T1 (de) 1997-02-15
EP0594541A3 (en) 1994-09-21
CH689445A5 (de) 1999-04-30
JPH06198249A (ja) 1994-07-19

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