EP3180543A1 - Vibration element with decoupled component - Google Patents
Vibration element with decoupled componentInfo
- Publication number
- EP3180543A1 EP3180543A1 EP15747814.0A EP15747814A EP3180543A1 EP 3180543 A1 EP3180543 A1 EP 3180543A1 EP 15747814 A EP15747814 A EP 15747814A EP 3180543 A1 EP3180543 A1 EP 3180543A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bore
- component
- vibration element
- elastic
- vibration
- 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.)
- Granted
Links
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
Definitions
- the present invention relates to a vibration element, such as a sonotrode, with a component attached thereto.
- an ultrasonic vibration unit which usually consists of a converter that converts an electrical alternating voltage into a mechanical excitation, optionally an amplitude transformer and a sonotrode.
- the entire ultrasonic vibration unit is then subjected to a high-frequency alternating voltage, so that the ultrasonic vibration unit oscillates, forming a standing wave within the sonotrode.
- the sonotrode may have an annular sealing surface that comes into contact with the material to be processed during machining. Then it may be advantageous if fluid is supplied within the annular sealing surface or a hold-down is provided. In this case, the sonotrode has a cavity into which fluids, for example air, must be supplied during processing.
- FIG. 1 shows an embodiment of the prior art.
- a sonotrode 1 has a centrally extending cavity 2.
- a bore 3 has been introduced into the sonotrode in the radial direction, in which a tube 4 is inserted, can be introduced via the fluid in the cavity 2.
- the sonotrode 1 vibrates in operation with an ultrasonic vibration, this leads to an unwanted ultrasonic processing of the hose 4, so that the hose 4 has only a limited life.
- the bore 3 is arranged so that it is located substantially in the region of a vibration node, in practice, the life of such hose connections is limited, so that relatively frequently the hose 4 must be replaced.
- FIG. 2 shows a second embodiment of the prior art, in which a suction ring 5 is provided in order to ensure the connection of a hose to the cavity 2.
- the illustrated sonotrode has a circular cross-section, so that the sleeve-like constructed suction ring 5 can be arranged with the aid of O-rings 6 around the sonotrode.
- the O-rings 6 serve to form an annular space formed by the annular recess 7 in the suction ring 5 in the axial direction, i. in the figure up and down, seal.
- the suction ring 5 has a radially extending bore in which a connecting piece 8 is arranged, on which the air hose can be fastened.
- suction ring 5 is completely decoupled from the oscillating part, but must be exactly adapted to the sonotrode.
- the vibration element has a bore and the component has a fastening portion inserted in the bore, wherein between the mounting portion and bore an elastic member is arranged, which is either elastically deformed or at least partially introduced within a in the inner surface of the bore Recess is arranged so that the component can be removed only by an elastic deformation of the elastic element from the bore.
- the described measure can, for example, also subsequently be introduced into existing sonotrodes. It is only necessary that a corresponding hole is introduced into the sonotrode.
- the attachment portion of a component can be used, wherein between the attachment portion on the one hand and inner walls of the bore on the other hand, the elastic element is arranged.
- the elastic element is formed such that it is either elastically deformed in the inserted state or at least partially disposed within a introduced into the inner surface of the bore recess, so that the component only by an elastic Deformation of the elastic element can be removed from the bore.
- the bore has a circular cross-section.
- other cross sections such as a square cross section, would be conceivable.
- the attachment portion has a circular cross-section.
- the attachment portion does not necessarily have to have a circular cross-section, but for example, may have a square cross-section. It is also not necessary that the bore and the mounting portion must have a mutually corresponding cross-section. However, it is necessary that the elastic member is adapted to both the attachment portion and the bore.
- the elastic element is formed completely surrounding the attachment portion.
- the elastic member may be annular or sleeve-shaped, so that it can be slipped over the outer surface of the attachment portion and can be introduced together with this in the bore ,
- connection between the vibration element and the component is tilt-rigid as possible, it is provided in a preferred embodiment that at least two elastic elements between the mounting portion and bore are arranged, wherein preferably the two elastic elements are axially spaced from each other. It refers axially to the bore axis.
- a spacer sleeve which surrounds the fastening portion, is arranged.
- the attachment portion has two axially spaced recesses, for example circumferential grooves, in which the two elastic elements are at least partially arranged.
- the component has a pressure element which can be moved relative to the fastening section and which is designed such that a force can be exerted thereon on the elastic element.
- a force can be exerted thereon on the elastic element.
- the pressure element is designed as a sleeve with internal thread and the component has a section with external thread on which the pressure element is arranged, wherein the pressure element is at least partially disposed together with the mounting portion within the bore, so by rotating the pressure element relative to the component, the pressure element can be moved further into or out of the bore.
- the pressure element is rotated relative to the mounting portion, so that it moves into the bore, it will eventually meet the elastic element and compress it in one direction, whereby it is in a direction which is substantially perpendicular to the direction of movement of the pressure element to a widening of the elastic element occurs, whereby the component is firmly clamped within the bore, so that even in ultrasonic operation, an unwanted loosening is prevented.
- the attachment portion may have a preferably formed as a circumferential groove recess, in which the elastic element, which is preferably an O-ring, is arranged.
- the component may be, for example, a compressed air supply.
- the component is tubular, wherein on the outside of the tube, the fastening portion is provided, which is inserted with the interposition of an elastic element in a corresponding bore in the vibration element.
- air can also be extracted via the component.
- the attachment method described can also be used elsewhere.
- there are sonotrodes with annular sealing surface so that inside the annular sealing surface a hold-down is desired.
- This hold-down must then be placed inside the sonotrode.
- the sonotrode thus has a cavity and the component, namely, a receptacle for a corresponding hold-down, can then be arranged within the cavity.
- the operation of the hold-down can be done for example by means of compressed air, which is also supplied by the inventive arrangement.
- a damper or a suction device could also be fastened inside the sonotrode.
- FIG. 2 shows a second embodiment of the prior art
- FIG. 3 shows a cross-sectional view of a component of a first embodiment according to the invention
- FIG. 6 shows a detail view of a cross section of a vibration element with a component inserted according to the second embodiment of the invention
- FIG. 5 shows a cross-sectional view of a component of a second embodiment of the invention
- FIG. 8 is a detail view of a cross section of the vibration element with inserted component according to the third embodiment of the invention
- FIG. 7 is a cross-sectional view of a component of a third embodiment of the invention
- FIG. 10 shows a cross-sectional view according to FIG. 9, but additionally with an air-pressure-operated hold-down device.
- FIGS. 1-10 Two embodiments of the prior art, which have already been described above, are shown in FIGS.
- FIG. 3 shows a cross-sectional view of a component of a first embodiment of the invention.
- the component 9 is substantially tubular in shape with a central channel 14.
- the component 9 has a fastening portion 11 and a threaded portion 10.
- a corresponding hose for supplying compressed air can be attached.
- the mounting portion 1 1 has two O-rings 12, 13, which are arranged in corresponding grooves 15, 16.
- FIG. 4 shows a detailed view showing the interaction between component 9 on the one hand and vibration element 1 on the other hand.
- the vibration element 1 for example a sonotrode, has a bore 3.
- the mounting portion 1 1 is inserted together with the two O-rings 12, 13 in the bore 3.
- a groove 17 is provided in the inner wall of the bore 3, in which the O-ring 12 is held.
- the two provided on the attachment portion 1 1 grooves 15, 16 for receiving the two O-rings 12, 13 have, as can be clearly seen in Figures 3 and 4, a different groove depth. It has been considered that the O-ring 12 finds a corresponding groove 17 on the vibration element 1, while this is not the case for the second O-ring 13.
- the depth of the groove 16 is dimensioned such that it corresponds to the sum of the groove depths of the groove with a smaller depth 15 of the component 9 and the depth of the groove 17 in the vibration element ,
- the component is adapted to be substantially vibration-decoupled within the vibration element 1.
- An unintentional displacement of the component 9 within the bore 3 is prevented in that the O-ring 12 engages both in a recess 15 of the component 9 and in a recess 17 of the vibration element 1.
- FIG. 5 shows a sectional view of a second embodiment according to the invention. As far as possible, the same reference numbers have been used to designate the same elements.
- the embodiment of the component shown in FIG. 5 differs from the embodiment shown in FIG. 3 in that on the one hand the groove depth for the two O-rings 12, 13 is the same.
- the component 9 ' here in addition to a pressure element 18, which is attached by means of an internal thread on the external thread 10 of the threaded portion. By relative rotation of the pressure element 18 relative to the component 9 ', the pressure element 18 can be moved in the axial direction to the O-ring 12 and away from it.
- the pressure element 18 is sleeve-shaped and has an axially projecting neck portion 19, which comes into contact with the pressure element 18 facing O-ring 12 in contact.
- the neck portion has an outer diameter which is smaller than the inner diameter of the bore.
- the groove for receiving the O-ring 12 is thus formed both by the component 9 'and by the pressure element 18 or the protruding collar element 19.
- FIG. 6 shows a detail view in which the interaction of the component 9 'with the Vibration element 1 is illustrated. Again, the vibration element 1 has a bore 3, in which a circumferential groove 17 is introduced for receiving the O-ring 12.
- the pressure element 18 is rotated relative to the threaded portion 10 to the groove width, in the situation shown the O-ring 12 is inserted, whereby the O-ring 12 deforms and expands in the radial direction, which in turn causes the O-ring with the groove bottom of the groove 17 in the vibration element 1 comes into contact.
- the pressure element 18 the O-ring 12 is pressed against the groove 17, so that it is ensured in operation that the device 9 'can be moved in the axial direction neither in the direction of the sonotrode still away from this.
- FIG. 5 shows a component 9 "of a third embodiment of the invention, in contrast to the component 9 'shown in FIG. 5, a spacer sleeve 20 is provided here in the direction of the first O-ring 12, so that it is clamped between the neck portion 19 of the pressure element 18 and spacer sleeve 20. Since the spacer sleeve 20 is movably arranged, this is moved in the direction of the second O-ring 13, so that with the aid of the pressure element 18, a force can be exerted on both the first O-ring 12 and the second O-ring 13.
- Figure 8 which shows the inserted state, can be dispensed with in this embodiment, the provision of a groove in the inner wall of the bore. Due to the uniform application of the compressive force of the pressure element 18 on the two O-rings, a uniform application of force via the two O-rings 12 and 13 is ensured in this case, even without providing a groove.
- one or more grooves may be provided, in which engage an O-ring or both O-rings.
- FIG. 9 shows a cross-sectional view of a fourth embodiment.
- the sonotrode 1 here has a substantially annular welding surface 31, which comes into contact with the material to be processed in the ultrasonic processing. Therefore, a cavity 32 is formed inside the sonotrode.
- a hold-down presses down the material within the annular welding surface.
- This hold-down device can also be fastened to the sonotrode 1 in a vibration-decoupled manner. For clarity, only a sleeve 21 with an inner channel 27 is shown in Figure 9, which is mounted within the sonotrode 1 vibration decoupled.
- This sleeve 21 is disposed within a second sleeve 33 and connected thereto via a screw connection. Furthermore, two O-rings 22 and 24 and a spacer sleeve 23 are provided. Now, if the sleeve 21 is rotated relative to the second sleeve 33, this leads to the projecting portion of the sleeve 21, the O-ring 22 presses against the spacer sleeve 23, whereupon this in turn exerts a force on the second O-ring 24. As a result, the two O-rings are deformed so that they expand in the radial direction and jam the sleeve 21 within the sonotrode 1. The longitudinal bore in the sonotrode is stepped, so that the O-ring 24 comes to lie at the stage of the bore, whereby a movement of the sleeve downwards, ie in the direction of the sealing surfaces 31, is prevented.
- another pressure element 26 is provided, which has an internal thread which engages with an external thread of the second sleeve 33 and so elastically deforms a third O-ring 25, which in turn ensures that the connection can not move axially upwards.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014111661.5A DE102014111661A1 (en) | 2014-08-14 | 2014-08-14 | Vibration element with decoupled component |
PCT/EP2015/068259 WO2016023823A1 (en) | 2014-08-14 | 2015-08-07 | Vibration element with decoupled component |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3180543A1 true EP3180543A1 (en) | 2017-06-21 |
EP3180543B1 EP3180543B1 (en) | 2022-02-16 |
Family
ID=53785653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15747814.0A Active EP3180543B1 (en) | 2014-08-14 | 2015-08-07 | Vibration element with decoupled component |
Country Status (6)
Country | Link |
---|---|
US (1) | US10974278B2 (en) |
EP (1) | EP3180543B1 (en) |
JP (1) | JP6716474B2 (en) |
CN (1) | CN106471568B (en) |
DE (1) | DE102014111661A1 (en) |
WO (1) | WO2016023823A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2019217566A1 (en) * | 2018-02-08 | 2020-09-10 | Woodwelding Ag | System of sonotrode and guide shaft |
CN108311361B (en) * | 2018-03-26 | 2022-12-16 | 浙江大学 | Micro-electromechanical piezoelectric ultrasonic transducer with specific mode vibration mode |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH390595A (en) * | 1960-11-23 | 1965-04-15 | Kredit Und Anlagen Ag | Device for fine distribution of substances using ultrasound |
CH537267A (en) | 1970-12-10 | 1973-05-31 | Kapsch Telephon Telegraph | Method and device for the tight connection of a container shell made of thermoplastic material with a base or cover part made of thermoplastic material by means of ultrasound |
DE2219790C3 (en) * | 1972-04-22 | 1974-11-07 | R Pohlman | Device for generating brittle fractures in hard stones |
DE3246768C1 (en) | 1982-12-17 | 1989-01-12 | Daimler-Benz Ag, 7000 Stuttgart | Gas and liquid-tight connection between a plastic body and a metal body embedded therein under pressure by flowing around it with a plasticized plastic mass |
US4988334A (en) * | 1986-04-09 | 1991-01-29 | Valleylab, Inc. | Ultrasonic surgical system with aspiration tubulation connector |
DE3817921A1 (en) * | 1988-05-26 | 1989-11-30 | Ott Gmbh A | Coupling device for connecting two sub-units |
US5211625A (en) | 1990-03-20 | 1993-05-18 | Olympus Optical Co., Ltd. | Ultrasonic treatment apparatus |
JPH08195998A (en) * | 1995-01-18 | 1996-07-30 | Fuji Kogyo Kk | Portable ultrasonic underwater sensor |
JPH08215616A (en) * | 1995-02-10 | 1996-08-27 | Akimichi Koide | Ultrasonic applicator |
US5816626A (en) * | 1995-12-05 | 1998-10-06 | Ford Motor Company | Spring lock coupling |
DE19925102B4 (en) * | 1999-06-01 | 2013-12-12 | Robert Bosch Gmbh | Fuel injector |
DE10029580C1 (en) * | 2000-06-15 | 2002-01-10 | Ferton Holding Sa | Device for removing body stones with an intracorporeal lithotripter |
EP1262152A1 (en) * | 2001-05-25 | 2002-12-04 | Ecole d'ingénieurs | Ultrasonic working instrument |
US6691909B2 (en) * | 2001-10-10 | 2004-02-17 | Ford Global Technologies, Llc | Sonotrode for ultrasonic welding apparatus |
DE20219407U1 (en) * | 2002-12-14 | 2003-03-20 | Moritz Erich | Rotary tool for preparing stone surfaces has a cylindrical grinding sleeve clamped onto a support spindle via elastic grip elements axially compressed to provide a friction coupling between spindle and sleeve |
JP4824359B2 (en) * | 2005-07-28 | 2011-11-30 | シーケーディ株式会社 | Air bearing cylinder and manifold cylinder |
DE102006020418A1 (en) | 2006-04-26 | 2007-10-31 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Device for processing workpieces by means of ultrasound |
CN201672202U (en) * | 2010-05-26 | 2010-12-15 | 浙江华丰管业有限公司 | Bearing intubation piece with sealing ring |
JP2012112397A (en) * | 2010-11-19 | 2012-06-14 | Aisin Seiki Co Ltd | Structure for mounting press-fitting member |
CN202371347U (en) * | 2011-11-18 | 2012-08-08 | 河北亚大汽车塑料制品有限公司 | Plug and plug component |
KR20130061284A (en) * | 2011-12-01 | 2013-06-11 | 엘지이노텍 주식회사 | Recess for o-ring |
JP5893399B2 (en) * | 2011-12-28 | 2016-03-23 | 株式会社ソノテック | Ultrasonic processing equipment |
US20130240152A1 (en) * | 2012-03-15 | 2013-09-19 | Nike, Inc. | Hollow tip welding tool |
-
2014
- 2014-08-14 DE DE102014111661.5A patent/DE102014111661A1/en not_active Withdrawn
-
2015
- 2015-08-07 US US15/315,399 patent/US10974278B2/en active Active
- 2015-08-07 WO PCT/EP2015/068259 patent/WO2016023823A1/en active Application Filing
- 2015-08-07 CN CN201580035011.6A patent/CN106471568B/en active Active
- 2015-08-07 EP EP15747814.0A patent/EP3180543B1/en active Active
- 2015-08-07 JP JP2016575668A patent/JP6716474B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US10974278B2 (en) | 2021-04-13 |
CN106471568B (en) | 2021-10-29 |
CN106471568A (en) | 2017-03-01 |
US20170197231A1 (en) | 2017-07-13 |
WO2016023823A1 (en) | 2016-02-18 |
EP3180543B1 (en) | 2022-02-16 |
JP6716474B2 (en) | 2020-07-01 |
JP2017526520A (en) | 2017-09-14 |
DE102014111661A1 (en) | 2016-02-18 |
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