DE202005003067U1 - Sonic horn for ultrasonic welding of thin wall thermoplastic components has tapered studs facing the workpiece - Google Patents

Sonic horn for ultrasonic welding of thin wall thermoplastic components has tapered studs facing the workpiece Download PDF

Info

Publication number
DE202005003067U1
DE202005003067U1 DE200520003067 DE202005003067U DE202005003067U1 DE 202005003067 U1 DE202005003067 U1 DE 202005003067U1 DE 200520003067 DE200520003067 DE 200520003067 DE 202005003067 U DE202005003067 U DE 202005003067U DE 202005003067 U1 DE202005003067 U1 DE 202005003067U1
Authority
DE
Germany
Prior art keywords
sonotrode
projections
workpieces
arrangement
workpiece
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
DE200520003067
Other languages
German (de)
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.)
KLN ULTRASCHALL AG, DE
Original Assignee
KLN ULTRASCHALL GmbH
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 KLN ULTRASCHALL GmbH filed Critical KLN ULTRASCHALL GmbH
Priority to DE200520003067 priority Critical patent/DE202005003067U1/en
Publication of DE202005003067U1 publication Critical patent/DE202005003067U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81469—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed next to the other in a single line transverse to the feed direction, e.g. shoulder to shoulder sonotrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0065—Permeability to gases
    • B29K2995/0067—Permeability to gases non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0068—Permeability to liquids; Adsorption
    • B29K2995/0069—Permeability to liquids; Adsorption non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof

Abstract

The sonic horn(10) has a working face(22) with one or more rows of closely spaced studs(24) facing the workpieces to be joined. Free ends(26) of the studs which make contact with the workpieces are tapered inwards. Stud(24) height is greater than the workpiece wall thickness, but less than the total wall thickness of both workpieces to be joined. Stud spacing in a row is less than stud height. Two or more rows of studs are arranged parallel to each other and row spacing is greater than the spacing of adjacent projections in the same row. Studs have either a slim pyramid shape or truncated pyramid shape with a square or rectangular base. On truncated pyramids the truncated face is either flat or has the form of a low pointed pyramid. An independent claim is included for an arrangement of sonic horns comprising two or more sonic horns positioned closely adjacent to each other on a common adapter coupled to an ultrasonic source.

Description

Die Erfindung betrifft eine Sonotrode für die Ultraschall-Verschweißung von Werkstücken geringer Wandstärke aus thermoplastischen Materialien.The The invention relates to a sonotrode for the ultrasonic welding of workpieces low wall thickness made of thermoplastic materials.

Als schnelles Verbindungsverfahren, welches reproduzierbare Ergebnisse liefert, hat sich Ultraschallweißen bei der Herstellung thermoplastischer Werkstücke in der Serienproduktion in großem Umfang eingeführt. Bei diesem Fügeverfahren werden die Schweißteile mittels eines auf den zu verbindenden Werkstücken aufgesetzten, als Sonotrode bezeichneten Werkzeug in mechanische Schwingung versetzt, wobei durch den gleichzeitig über die Sonotrode aufgebrachten Druck das Material sich infolge der Reibungswärme im Nahtbereich plastifiziert. Nach kurzer Haltezeit entsteht dann eine homogene Verbindung hoher Festigkeit. Problematisch kann die Ultraschall-Verschweißung von Werkstücken dann werden, wenn ein aus zu verbindenden dünnwandigen Werkstücken hergestelltes Produkt eine durch den Schweißvorgang optisch und ästhetisch gegenüber dem Ausgangszustand unveränderte Sichtfläche hoher Oberflächengüte aufweisen muss, d.h. der thermoplastische Fügevorgang keine Abdrücke der Sonotrode bzw. der Werkstückaufnahme im Bereich der Sichtfläche hinterlassen darf. Noch schwieriger ist diese Anforderung dann zu erfüllen, wenn diese Verbindung außerdem absolut dicht gegen den Durchtritt von Gas oder flüssigen Medien ausgebildet werden muss, wie dies zum Beispiel bei großformatigen Teilen von Automobilen heute zunehmend gefordert wird.When fast connection method, which reproducible results Ultrasonic whitening has become more thermoplastic in the production workpieces in mass production on a large scale introduced. In this joining process become the welding parts by means of a mounted on the workpieces to be connected, referred to as sonotrode Tool offset in mechanical vibration, passing through the same time via the sonotrode applied pressure the material is due to the frictional heat in the seam area plasticized. After a short hold time, a homogeneous result is obtained High strength connection. Problematic is the ultrasonic welding of workpieces then when a made of thin-walled workpieces to be made Product one by the welding process visually and aesthetically across from the original state unchanged viewing area must have high surface quality, i.e. the thermoplastic joining process no impressions the sonotrode or the workpiece holder in the area of the visible surface leave behind. Even more difficult is this requirement fulfill, if that connection as well absolutely tight against the passage of gas or liquid media must be trained, as for example in the case of large format Parts of automobiles today increasingly demanded.

Der Erfindung liegt die Aufgabe zugrunde, eine Sonotrode für die Ultraschall-Verschweißung von Werkstücken geringer Wandstärke aus thermoplastischem Material anzugeben, welche die Herstellung von großformatigen Serienteilen ermöglicht, deren sichtseitige Oberfläche durch den Schweißvorgang keinerlei optisch erkennbare Veränderung erfährt, wobei gleichzeitig die erhaltene Verbindung zwischen den Werkstücken die geforderte absolute Dichtheit gegen Durchtritt von flüssigen oder gasförmigen Medien aufweist.Of the Invention is based on the object, a sonotrode for the ultrasonic welding of workpieces low wall thickness of thermoplastic material indicating the manufacture of large format Allows serial parts, their visible surface through the welding process no visually recognizable change learns at the same time the obtained connection between the workpieces the required absolute tightness against the passage of liquid or gaseous Media has.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Sonotrode im Bereich ihrer beim Schweißvorgang auf der Oberfläche eines der in Übereinanderlage gebrachten zu verbindenden Werkstücke aufzusetzenden Arbeitsfläche eine Anzahl von in wenigstens einer Reihe angeordneten, sich in Richtung auf ihr auf den Werkstücken aufzusetzenden freien Enden verjüngenden, eng benachbarten Vorsprüngen versehen ist. Beim Schweißvorgang dringen diese Vorsprünge aufgrund der im Ultraschall-Generator erzeugten, auf die Sonotrode übertragenen Ultraschall-Schwingungen und des gleichzeitig einwirkenden Drucks in das Material des sonotrodenzugewandten Werkstücks ein und verdrängen ein komplementäres Volumen des plastifizierten Materials dieses Werkstücks, wobei die Steuerung so erfolgt, dass die vorderen schlanken Enden der Vorsprünge dann etwas in das zweite Werkstück eindringen. Das verdrängte plastifizierte Material dringt auch in die Fuge zwischen den übereinander liegenden Bereichen der Werkstücke ein und stellt so – nach Verfestigung – die geforderte Dichtigkeit her.These Task is inventively characterized solved, that the sonotrode is in the area of its during the welding process on the surface of a in overlapping brought to be joined workpieces aufzusetzenden work surface a Number of arranged in at least one row, towards on her on the workpieces rejuvenating free ends to be set up, closely adjacent protrusions is provided. During the welding process penetrate these projections due to the ultrasound generator generated, transmitted to the sonotrode Ultrasonic vibrations and the simultaneously acting pressure in the material of the sonotrode facing workpiece and displace a complementary one Volume of the plasticized material of this workpiece, wherein the control is done so that the front slender ends of the projections then penetrate something into the second workpiece. The repressed Plasticized material also penetrates into the joint between the superimposed ones Areas of workpieces and postpone so Solidification - the required tightness ago.

Die Vorsprünge der Sonotrode haben vorzugsweise eine Höhe, die größer als die Wandstärke des beim Schweißvorgang direkt von den Vorsprüngen beaufschlagten Werkstücks ist, wobei die Ausgestaltung dann zweckmäßig weiter so getroffen wird, dass die Höhe der Vorsprünge geringer als die gesamte Wandstärke der beiden Werkstücke im zu verbindenden Bereich ist. Damit wird sichergestellt, dass die Vorsprünge keinesfalls bis in unmittelbare Nähe oder gar durch die spätere sichtseitige Oberfläche des Verbindungsprodukts treten können.The projections the sonotrode preferably have a height which is greater than the wall thickness of the during the welding process directly from the projections loaded workpiece is, the configuration is then suitably further made so that the height the projections less than the entire wall thickness of the two workpieces is in the area to be connected. This will ensure that the projections by no means to the immediate vicinity or even by the later on the visible side surface of the connecting product.

Die jeweils in einer Reihe benachbart angeordneten Vorsprünge werden dann zweckmäßig in einem Abstand voneinander angeordnet, der kleiner ist als ihre Höhe.The each in a row adjacently arranged projections then appropriate in one Spaced apart smaller than their height.

Es hat sich herausgestellt, dass sowohl die Festigkeit als auch die Dichtigkeit der Verbindung optimiert wird, wenn wenigstens zwei parallel und mit Abstand voneinander verlaufende Reihen von Vorsprüngen vorgesehen sind.It It has been shown that both the strength and the Tightness of the connection is optimized if at least two provided parallel and spaced apart rows of projections are.

Der Abstand zwischen den parallelen Vorsprung-Reihen wird dann mit Vorteil etwas größer als der Abstand zwischen den benachbarten Vorsprüngen der gleichen Reihe gewählt.Of the Distance between the parallel projection rows is then beneficial a bit bigger than that Distance between the adjacent protrusions of the same row selected.

Als besonders vorteilhaft bezüglich der Schweißfunktion sowie der für die Herstellung aufzuwendenden Kosten hat es sich erwiesen, wenn die Vorsprünge jeweils die Form von schlanken Pyramiden oder Pyramidenstümpfen haben, wobei diese Pyramidenstümpfe bzw. Pyramidenstümpfe dann vorzugsweise quadratische oder rechteckige Basisflächen haben.When particularly advantageous with respect the welding function as well as for the cost of producing it has been proven when the projections each have the shape of slender pyramids or truncated pyramids, these pyramid stumps or truncated pyramids then preferably have square or rectangular base surfaces.

Dabei kann die der Basisfläche gegenüberliegende obere Abschlussfläche bei pyramidenstumpfförmigen Vorsprungen jeweils ebenflächig ausgebildet sein. Durch Überschleifen der oben liegenden Abschlussflächen der Pyramidenstümpfe sind solche ebenflächigen und exakt in der gleichen fluchtenden Höhe liegenden ebenflächigen Enden kostengünstig herstellbar.there can be the base area opposing upper end surface in truncated pyramidal Projections each formed planar be. By blending the upper end surfaces the truncated pyramids are such planar and lying exactly in the same level height planar ends inexpensive to produce.

Alternativ können die der Basisfläche gegenüberliegenden oberen Abschlussflächen des jeweiligen pyramidenstumpfförmigen Vorsprungs auch die Form einer niedrigen zugespitzten Pyramide mit stumpfem Scheitelwinkel haben.Alternatively, the base surface opposite upper end surfaces of the respective truncated pyramidal projection can also be in the form of a low tapered pyramid have a dull vertex angle.

Für die Verbindung von Werkstücken durch Ultraschweißung in längeren Verbindungsbereichen können zwei oder mehr Sonotroden der vorstehend geschilderten Art in dichter Nebeneinander-Anordnung an einem gemeinsamen, an eine Ultraschallquelle ankoppelbaren Adapter vorgesehen werden.For the connection of workpieces by ultrasonic whitening in longer Connection areas can two or more sonotrodes of the type described above in denser Side by side arrangement on a common, to an ultrasonic source can be provided coupling adapter.

Darüber hinaus können dann auch zwei oder mehr gemeinsam oder gesondert an einer Ultraschallquelle ankoppelbaren Sonotroden-Anordnung verwirklicht werden.Furthermore can then two or more together or separately to an ultrasonic source connectable sonotrode arrangement can be realized.

Die jeweils an einem zugeordneten Adapter angeordneten einzelnen Sonotroden können dann in Bezug auf die Ausrichtung der auf den Werkstücken aufzusetzenden Vorsprünge dann eine dem räumlichen Verlauf der zu verbindenden Bereiche der Werkstücke entsprechend angepasste Ausrichtung aufweisen.The each arranged on an associated adapter individual sonotrodes can then with respect to the orientation of aufzusetzenden on the workpieces projections then one spatial Course of the areas to be joined of the workpieces adapted accordingly Have alignment.

Die Erfindung ist in der folgenden Beschreibung in Verbindung mit der Zeichnung näher erläutert, und zwar zeigt:The The invention is described in the following description in connection with the Drawing closer explains and that shows:

1 eine Seitenansicht einer in der erfindungsgemäßen Weise ausgebildeten Sonotrode für Ultraschall-Verschweißungen von dünnwandigen thermoplastischen Werkstücken; 1 a side view of a trained in the manner of the invention sonotrode for ultrasonic welding of thin-walled thermoplastic workpieces;

2 eine Ansicht der Sonotrode, gesehen in Richtung des Pfeils 2 in 1; 2 a view of the sonotrode, seen in the direction of arrow 2 in 1 ;

3 eine Seitenansicht von zwei in Übereinanderlage gebrachten, miteinander zu verbindenden thermoplastischen Werkstücken geringer Wandstärke, wobei eine Sonotrode der in 1 und 2 gezeigten Ausgestaltung in der vor Durchführung des eigentlichen Verschweißungsvorgangs noch angehobenen Position oberhalb der zu verbindenden Werkstücke dargestellt ist; 3 a side view of two superposed, to be joined together thermoplastic workpieces of small wall thickness, wherein a sonotrode of in 1 and 2 shown embodiment is shown in the before the actual welding process still raised position above the workpieces to be joined;

4 eine Draufsicht auf die Werkstück-Abschnitte nach deren Verbindung durch Ultraschall-Verschweißung mit der Sonotrode, gesehen in Richtung des Pfeils 4 in 3; 4 a plan view of the workpiece sections after their connection by ultrasonic welding to the sonotrode, seen in the direction of arrow 4 in 3 ;

5 eine Seitenansicht der miteinander verbundenen Werkstück-Abschnitte, gesehen in Richtung des Pfeils 5 in 4; 5 a side view of the interconnected workpiece sections, as seen in the direction of arrow 5 in 4 ;

6 eine isometrische Ansicht von vier an einem gemeinsamen Adapter angeordneten Sonotrode gemäß 1 und 2; 6 an isometric view of four arranged on a common adapter sonotrode according to 1 and 2 ;

7 eine in der Blickrichtung veränderte und maßstäblich vergrößerte isometrische Ansicht der in 6 gezeigten Sonotroden-Anordnung; 7 an isometric view of the in 6 shown sonotrode arrangement;

8 eine Seitenansicht der Sonotroden-Anordnung gemäß 6 und 7; 8th a side view of the sonotrode arrangement according to 6 and 7 ;

9 eine Ansicht der Sonotroden-Anordnung, gesehen in Richtung des Pfeils 9 in 8; 9 a view of the sonotrode arrangement, seen in the direction of arrow 9 in 8th ;

10 eine Ansicht der Sonotroden-Anordnung, gesehen in Richtung des Pfeils 10 in 8; 10 a view of the sonotrode arrangement, as seen in the direction of arrow 10 in 8th ;

11 eine Ansicht der Sonotroden-Anordnung, gesehen in Richtung des Pfeils 11 in 8; und 11 a view of the sonotrode arrangement, seen in the direction of arrow 11 in 8th ; and

12 den in 9 innerhalb des strichpunktierten Kreises 12 liegenden Bereich der Sonotroden-Anordnung in vergrößertem Maßstab. 12 the in 9 within the dash-dotted circle 12 lying region of the sonotrode arrangement on an enlarged scale.

Die in den 1 und 2 gezeigte, in ihrer Gesamtheit mit 10 bezeichnete Sonotrode aus Metall, vorzugsweise einer Titan- oder Stahllegierung hat in ihrem oberen, am Ultraschall-Generator einer Ultraschall-Schweißeinheit ankoppelbaren Schaftabschnitt 12 einen kreisförmigen Querschnitt, welcher über gegenüberliegende Abrundungen 14 in einen unteren langgestreckten rechteckähnlichen, an seinen gegenüberliegenden kürzeren Seiten jedoch mit einem dem Radius des Schaftabschnitts 12 entsprechenden Radius kreisbogenförmig begrenzten Sonotroden-Abschnitt 16 übergeht, dessen zwischen den längeren geradlinigen Seiten gemessene Breite nur etwa 1/3 des Durchmessers des oberen Schaftabschnitts beträgt.The in the 1 and 2 shown, in their entirety with 10 designated sonotrode of metal, preferably a titanium or steel alloy has in its upper, the ultrasonic generator of an ultrasonic welding unit can be coupled shaft portion 12 a circular cross-section, which over opposite rounding 14 in a lower elongate rectangular-like, but at its opposite shorter sides with a radius of the shaft portion 12 corresponding radius circular arc-shaped limited sonotrode section 16 transitions whose width measured between the longer rectilinear sides is only about 1/3 of the diameter of the upper shaft portion.

Von der beim dargestellten Ausführungsbeispiel zur Verbindung von zwei dünnen ebenflächigen Werkstücken 18, 20 (3 bis 5) in einer Probeschweißung bestimmten Endfläche 22 des unteren Sonotrodenabschnitts 16 treten in zwei parallelen Reihen in gleichmäßigen Abständen vorgesehene Vorsprünge 24 vor, welche im dargestellten Fall die Form von lang gestreckten vierseitigen Pyramidenstümpfen mit ebener Abschlussfläche 26 haben. D.h. die Vorsprünge 24 verjüngen sich von ihrer von der Endfläche 22 ausgehenden Basis in Richtung zu den Abschlussflächen 26.From the illustrated embodiment for the connection of two thin planar workpieces 18 . 20 ( 3 to 5 ) in a test weld specific end face 22 of the lower sonotrode section 16 occur in two parallel rows at regular intervals projections provided 24 which, in the case illustrated, take the form of elongated quadrilateral truncated pyramids with a flat end surface 26 to have. Ie the projections 24 rejuvenate from their end face 22 outgoing base towards the end surfaces 26 ,

Die von der Basis zu den Abschlussflächen 26 gemessene Höhe der Vorsprünge 24 ist größer als die Dicke des oberen Werkstück-Abschnitts 18, aber geringer als die gesamte Dicke beider in Übereinanderlage befindlichen Werkstück-Abschnitte 18 und 20. Wenn die Werkstück-Abschnitte beispielsweise eine Wandstärke von jeweils 3mm haben, dann wäre die Höhe der Vorsprünge größer als 3mm und kleiner als 6mm, d.h. beispielsweise 4,5mm, zu bemessen. Beim Verbinden der Werkstück-Abschnitte 18 und 20 durch Aufsetzen der mit geeigneter Frequenz im Ultraschallbereich angeregten Vorsprünge 24 unter gleichzeitiger Druckauflastung in Richtung auf die zu verbindenden Werkstücke wird die Schwingungsenergie von den Vorsprüngen auf die zugeordneten Bereiche der Werkstück-Abschnitte und – mit zunehmendem Eindringen in die Werkstücke auch in das Werkstück 20 – übertragen und das Material wird aufgrund der erzeugten Reibungsenergie erwärmt und plastifiziert, wobei die Vorsprünge das ihrer geometrischen Form entsprechende Volumen von plastifiziertem Kunststoff verdrängen. Das verdrängte Material dringt zum einen in den im Verbindungsbereich zwischen den Werkstück-Abschnitten 18 und 20 liegenden Spalt und verbindet die Werkstücke dann – nach dem Erkalten – zu einem im Schweißbereich homogen verbundenen Werkstück. Überschüssiges, beim Schweißvorgang plastifiziertes Material wird an der Oberseite des oberen Werkstück-Abschnitts 18 am Fuß der Vorsprünge 24 nach außen verdrängt, so dass die Verbindung bereits auf der frei liegenden Oberfläche des oberen Werkstück-Abschnitts 18 die in 4 und 5 erkennbare Gestalt von im Wesentlichen quadratischen, sich in die Tiefe komplementär zu den Vorsprüngen verjüngenden Vertiefungen 28 mit jeweils zwischen den Einzel-Vertiefungen verbleibenden Stegen 30 annehmen, an deren außen liegenden Enden dann jeweils unregelmäßige erhöhte Materialvorsprünge 32 aus verdrängtem plastifizierten Material anschließen.The from the base to the end surfaces 26 measured height of the projections 24 is greater than the thickness of the upper workpiece section 18 but less than the entire thickness of both superimposed workpiece sections 18 and 20 , For example, if the workpiece sections have a wall thickness of 3mm, then the height of the projections would be greater than 3mm and less than 6mm, ie, 4.5mm, for example. When connecting the workpiece sections 18 and 20 by placing the projections excited at the appropriate frequency in the ultrasonic range 24 with simultaneous pressure in the direction of the workpieces to be joined is the vibration energy from the projections on the associated areas of the workpiece sections and - with increasing penetration into the workpieces in the workpiece 20 - Transmitted and the material is heated and plasticized due to the generated friction energy, wherein the projections displace the corresponding geometric shape of their volume of plasticized plastic. On the one hand, the displaced material penetrates into the connection area between the workpiece sections 18 and 20 lying gap and then connects the workpieces - after cooling - to a homogeneously connected in the welding area workpiece. Excess material that has been plasticized during the welding process becomes at the top of the upper part of the workpiece 18 at the foot of the projections 24 displaced to the outside, leaving the connection already on the exposed surface of the upper workpiece section 18 in the 4 and 5 recognizable shape of substantially square, tapered in the depths complementary to the projections depressions 28 each with remaining between the individual depressions webs 30 assume at the outer ends then each irregular raised material protrusions 32 from extruded plasticized material.

Es hat sich gezeigt, dass bei Verwendung der in der geschilderten Weise ausgebildeten Sonotrode eine sich auf der in 5 unten liegenden Oberfläche des unteren Werkstück-Abschnitts 20 nicht abzeichnende Verbindung erhalten wird, die nicht nur hoch belastbar, sondern im Verbindungsbereich auch absolut dicht ist.It has been found that when using the sonotrode formed in the manner described a on the in 5 underlying surface of the lower workpiece section 20 not emerging compound is obtained, which is not only highly resilient, but in the connection area is also absolutely tight.

Es ist ersichtlich, dass durch die in 4 veranschaulichte Anbringung von zwei voneinander beabstandeten Verbindungsbereichen eine entsprechend erhöhte Festigkeit gegen Lösen der Werkstück-Abschnitte 18, 20 erzielt werden kann.It can be seen that by the in 4 illustrated attachment of two spaced connection areas a correspondingly increased resistance to loosening of the workpiece sections 18 . 20 can be achieved.

Es ist ersichtlich, dass im Rahmen des Erfindungsgedankens Abwandlungen und Weiterbildungen des vorstehend beschriebenen Ausführungsbeispiels verwirklichbar sind. So kann die ebenflächige Abschlussfläche 26 alternativ auch die Form einer zugespitzten niedrigen vierflächigen Pyramide haben. Weitere Abwandlungen der Vorsprünge 24 in der Form und den Abmessungen, z.B. als in einer Spitze auslaufende vierflächige Pyramiden, können in Anpassung an die Wandstärke der zu verbindenden Werkstücke und die speziellen Eigenschaften des Materials dieser Werkstücke verwirklicht werden.It can be seen that within the scope of the inventive concept, modifications and developments of the embodiment described above can be realized. This is how the flat surface can be finished 26 alternatively have the form of a pointed low tetrahedral pyramid. Further modifications of the projections 24 in the shape and dimensions, for example, as expiring in a peak tetrahedral pyramids, can be realized in adaptation to the wall thickness of the workpieces to be joined and the special properties of the material of these workpieces.

In den 6 bis 12 ist die gemeinsame Anordnung von vier Einzel-Sonotroden 10 der vorstehend beschriebenen Art an einem seinerseits an einer Ultraschallquelle ankoppelbaren Adapter 36 veranschaulicht. Die Sonotroden 10 sind in enger Nebeneinanderlage derart an der langgestreckten schmalen Unterseite des quaderförmigen Adapters 36 befestigt, dass sich die an den Arbeitsflächen der Sonotroden vorgesehenen Vorsprünge 24 zu zwei entsprechend, d.h. um das vierfache, verlängerten Reihen von Vorsprüngen ergänzen und somit die Erzeugung von dichten Verbindungen von übereinanderliegenden Bereichen von Werkstücken entsprechend vergrößerter Länge ermöglichen. Eine weitere Verlängerung des Verbindungsbereichs ist entweder durch Anordnung von mehr als vier Sonotroden 10 an einem entsprechend verlängerten Adapter 36 oder aber auch durch Reihung mehrerer, mit Einzel-Sonotroden 10 bestückter Adapter 36 verwirklichbar. Im letztgenannten Fall können die Adapter dann entweder jeweils an einer gesonderten Ultraschallquelle oder auch an einen gemeinsamen Ultraschallgenerator angekoppelt sein, der – bei hinreichender Schallleistung - gleichzeitig und gemeinsam Ultraschallschwingungen als Energie in die Adapter einspeist oder aufeinander folgend an den einzelnen Adaptern ankoppelbar ist.In the 6 to 12 is the common arrangement of four single sonotrodes 10 of the type described above on an adapter that can be coupled to an ultrasound source 36 illustrated. The sonotrodes 10 are in close juxtaposition so on the elongated narrow bottom of the cuboid adapter 36 attached, that provided on the working surfaces of the sonotrodes projections 24 in accordance with two, ie by four times, extended rows of projections and thus allow the creation of tight connections of superimposed areas of workpieces of correspondingly increased length. Another extension of the connection area is either by arranging more than four sonotrodes 10 on a correspondingly extended adapter 36 or by series of several, with single sonotrodes 10 equipped adapter 36 realizable. In the latter case, the adapters can then either be coupled to a separate ultrasound source or to a common ultrasound generator which - with sufficient sound power - simultaneously and jointly injects ultrasonic vibrations as energy into the adapters or can be coupled to the individual adapters in succession.

Es ist ersichtlich, dass durch die Zusammenstellung von Einzel-Sonotroden auch geometrisch von geradlinigen ebenflächigen Verbindungsbereichen abweichende Sonotroden-Anordnungen verwirklichbar sind, welche an ebene kurvenförmige oder auch an räumlich dreidimensional verlaufende Verbindungsbereiche angepasst sind.It It can be seen that the combination of single sonotrodes also geometrically of straight-line planar connecting areas deviating sonotrode arrangements can be realized which an plane curved or also in spatial terms three-dimensional connecting areas are adjusted.

Claims (14)

Sonotrode (10) für die Ultraschall-Verschweißung von Werkstücken geringer Wandstärke aus thermoplastischen Materialien durch Ultraschallschweißung, dadurch gekennzeichnet, dass die Sonotrode (10) im Bereich ihrer beim Schweißvorgang auf der Oberfläche eines der in Übereinanderlage gebrachten zu verbindenden Werkstücke (18; 20) aufzusetzenden Arbeitsfläche eine Anzahl von in wenigstens einer Reihe angeordneten, sich in Richtung auf ihr auf den Werkstücken (18; 20) aufzusetzenden freien Enden verjüngenden, eng benachbarten Vorsprüngen (24) versehen ist.Sonotrode ( 10 ) for the ultrasonic welding of workpieces of low wall thickness made of thermoplastic materials by ultrasonic welding, characterized in that the sonotrode ( 10 ) in the region of their welding operation on the surface of one of the superimposed to be joined workpieces ( 18 ; 20 ) to be placed on a work surface a number of arranged in at least one row, towards her on the workpieces ( 18 ; 20 ) aufzusetzenden free ends tapered, closely adjacent projections ( 24 ) is provided. Sonotrode nach Anspruch 1, dadurch gekennzeichnet, dass die Vorsprünge (24) eine Höhe haben, die größer als die Wandstärke des beim Schweißvorgang direkt von den Vorsprüngen beaufschlagten Werkstücks (18).Sonotrode according to claim 1, characterized in that the projections ( 24 ) have a height which is greater than the wall thickness of the workpiece acted upon directly by the projections during the welding operation ( 18 ). Sonotrode nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Vorsprünge (24) eine Höhe haben, die geringer als die Gesamtwandstärke der beiden Werkstücke (18; 20) im zu verbindenden Bereich ist.Sonotrode according to claim 1 or 2, characterized in that the projections ( 24 ) have a height which is less than the total wall thickness of the two workpieces ( 18 ; 20 ) is in the area to be connected. Sonotrode nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die in einer Reihe benachbart angeordneten Vorsprünge (24) jeweils einen Abstand voneinander haben, der kleiner ist als ihre Höhe.Sonotrode according to Claim 2 or 3, characterized in that the projections (8) arranged adjacent to one another in a row 24 ) each one distance have each other, which is smaller than their height. Sonotrode nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass wenigstens zwei parallel und mit Abstand voneinander verlaufende Reihen von Vorsprüngen (24) vorgesehen sind.Sonotrode according to one of claims 1 to 4, characterized in that at least two parallel and spaced rows of projections ( 24 ) are provided. Sonotrode nach Anspruch 4 und 5, dadurch gekennzeichnet, dass der Abstand zwischen den parallelen Vorsprung-Reihen größer als der Abstand zwischen benachbarten Vorsprüngen (24) der gleichen Reihe ist.Sonotrode according to claim 4 and 5, characterized in that the distance between the parallel projection rows is greater than the distance between adjacent projections ( 24 ) of the same row. Sonotrode nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Vorsprünge (24) jeweils die Form von schlanken Pyramiden haben.Sonotrode according to one of claims 1 to 6, characterized in that the projections ( 24 ) each have the shape of slender pyramids. Sonotrode nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Vorsprünge (24) jeweils die Form von schlanken Pyramidenstümpfen haben.Sonotrode according to one of claims 1 to 6, characterized in that the projections ( 24 ) each have the form of slender truncated pyramids. Sonotrode nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Vorsprünge (24) jeweils die Form einer Pyramide bzw. eines Pyramidenstumpfs mit quadratischer oder rechteckiger Basisfläche haben.Sonotrode according to claim 7 or 8, characterized in that the projections ( 24 ) each have the shape of a pyramid or a truncated pyramid with a square or rectangular base surface. Sonotrode nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die der Basisfläche gegenüberliegende obere Abschlussfläche des jeweiligen pyramidenstumpfförmigen Vorsprungs (24) ebenflächig ausgebildet ist.Sonotrode according to claim 8 or 9, characterized in that the base surface opposite upper end surface of the respective truncated pyramidal projection ( 24 ) is planar. Sonotrode nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die der Basisfläche gegenüberliegende obere Abschlussfläche des jeweiligen pyramidenstumpfförmigen Vorsprungs (24) die Form einer niedrigen zugespitzten Pyramide hat.Sonotrode according to claim 8 or 9, characterized in that the base surface opposite upper end surface of the respective truncated pyramidal projection ( 24 ) has the shape of a low pointed pyramid. Sonotroden-Anordnung, gekennzeichnet durch die Anordnung von zwei oder mehr Sonotroden (10) nach einem der Ansprüche 1 bis 11 in dichter Nebeneinander-Anordnung an einem gemeinsamen, an eine Ultraschallquelle ankoppelbaren Adapter (36).Sonotrode arrangement, characterized by the arrangement of two or more sonotrodes ( 10 ) according to one of claims 1 to 11 in a close juxtaposition arrangement on a common, can be coupled to an ultrasonic source adapter ( 36 ). Sonotroden-Anordnung nach Anspruch 12, gekennzeichnet durch Aneinanderreihung von zwei oder mehr an einer Ultraschallquelle ankoppelbaren Adaptern (36).Sonotrode arrangement according to claim 12, characterized by juxtaposition of two or more adapters which can be coupled to an ultrasound source ( 36 ). Sonotroden-Anordnung nach Anspruch 12 oder 13, dadurch gekennzeichnet, dass die jeweils an einem zugeordneten Adapter (36) angeordneten einzelnen Sonotroden (10) in Bezug auf die Ausrichtung der auf den Werkstücken aufzusetzenden Vorsprüngen eine dem räumlichen Verlauf der zu verbindenden Bereiche der Werkstücke entsprechend angepasste Ausrichtung aufweisen.Sonotrode arrangement according to claim 12 or 13, characterized in that each of an associated adapter ( 36 ) arranged individual sonotrodes ( 10 ) with respect to the alignment of the projections to be placed on the workpieces have a corresponding to the spatial profile of the areas to be joined areas of the workpieces alignment.
DE200520003067 2005-02-25 2005-02-25 Sonic horn for ultrasonic welding of thin wall thermoplastic components has tapered studs facing the workpiece Expired - Lifetime DE202005003067U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200520003067 DE202005003067U1 (en) 2005-02-25 2005-02-25 Sonic horn for ultrasonic welding of thin wall thermoplastic components has tapered studs facing the workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520003067 DE202005003067U1 (en) 2005-02-25 2005-02-25 Sonic horn for ultrasonic welding of thin wall thermoplastic components has tapered studs facing the workpiece

Publications (1)

Publication Number Publication Date
DE202005003067U1 true DE202005003067U1 (en) 2005-05-12

Family

ID=34585688

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200520003067 Expired - Lifetime DE202005003067U1 (en) 2005-02-25 2005-02-25 Sonic horn for ultrasonic welding of thin wall thermoplastic components has tapered studs facing the workpiece

Country Status (1)

Country Link
DE (1) DE202005003067U1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007085560A2 (en) 2006-01-26 2007-08-02 Faurecia Innenraum Systeme Gmbh Method for ultrasound welding and construction module, particularly door module of a motor vehicle
DE102009024258A1 (en) * 2009-06-05 2010-12-09 Sonotronic Nagel Gmbh Ultrasonic-welding tool e.g. anvil, for production of thin welding seam for connecting two plastic foils, has multiple elevations arranged next to each other and separated from each other by gaps
WO2010139464A1 (en) * 2009-06-05 2010-12-09 Sonotronic Nagel Gmbh Ultrasonic welding tool
CN101408573B (en) * 2007-10-11 2012-05-16 康准电子科技（昆山）有限公司 Device for detecting hot melt stud on plastic rubber part
DE102013223166A1 (en) * 2013-11-14 2015-05-21 Bayerische Motoren Werke Aktiengesellschaft Sonotrode for ultrasonic welding, ultrasonic welding machine, ultrasonic welding process and welded joint
EP3025850A1 (en) * 2013-07-24 2016-06-01 Teijin Limited Fiber-reinforced plastic assembly and method for manufacturing same
US9458629B2 (en) 2012-09-28 2016-10-04 Bemis Manufacturing Company Method of forming raceway knockout
EP2292520B1 (en) * 2009-09-04 2016-10-12 Focke & Co. (GmbH & Co. KG) Tobacco pouch
WO2017114974A3 (en) * 2015-12-30 2017-08-10 Green Impact Holding Ag Hygiene product such as wash-durable and reusable sanitary napkin
DE102020133013A1 (en) 2020-12-10 2022-06-15 Herrmann Ultraschalltechnik Gmbh & Co. Kg Compensation of thermal deformation on sonotrodes
CN117359950A (en) * 2023-12-05 2024-01-09 东风亚普汽车部件有限公司 Welding device for oil tank filling pipe

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8048246B2 (en) 2006-01-26 2011-11-01 Faurecia Innenraum Systeme Gmbh Method for ultrasound welding and construction module, particularly motor vehicle door module
WO2007085560A2 (en) 2006-01-26 2007-08-02 Faurecia Innenraum Systeme Gmbh Method for ultrasound welding and construction module, particularly door module of a motor vehicle
CN101408573B (en) * 2007-10-11 2012-05-16 康准电子科技（昆山）有限公司 Device for detecting hot melt stud on plastic rubber part
DE102009024258A1 (en) * 2009-06-05 2010-12-09 Sonotronic Nagel Gmbh Ultrasonic-welding tool e.g. anvil, for production of thin welding seam for connecting two plastic foils, has multiple elevations arranged next to each other and separated from each other by gaps
WO2010139464A1 (en) * 2009-06-05 2010-12-09 Sonotronic Nagel Gmbh Ultrasonic welding tool
EP2292520B1 (en) * 2009-09-04 2016-10-12 Focke & Co. (GmbH & Co. KG) Tobacco pouch
US10315361B2 (en) 2012-09-28 2019-06-11 Cup Acquisition, Llc Method of forming raceway knockout
US9458629B2 (en) 2012-09-28 2016-10-04 Bemis Manufacturing Company Method of forming raceway knockout
EP3025850A1 (en) * 2013-07-24 2016-06-01 Teijin Limited Fiber-reinforced plastic assembly and method for manufacturing same
DE102013223166A1 (en) * 2013-11-14 2015-05-21 Bayerische Motoren Werke Aktiengesellschaft Sonotrode for ultrasonic welding, ultrasonic welding machine, ultrasonic welding process and welded joint
WO2017114974A3 (en) * 2015-12-30 2017-08-10 Green Impact Holding Ag Hygiene product such as wash-durable and reusable sanitary napkin
DE102020133013A1 (en) 2020-12-10 2022-06-15 Herrmann Ultraschalltechnik Gmbh & Co. Kg Compensation of thermal deformation on sonotrodes
CN117359950A (en) * 2023-12-05 2024-01-09 东风亚普汽车部件有限公司 Welding device for oil tank filling pipe
CN117359950B (en) * 2023-12-05 2024-02-13 东风亚普汽车部件有限公司 Welding device for oil tank filling pipe

Similar Documents

Publication Publication Date Title
DE202005003067U1 (en) Sonic horn for ultrasonic welding of thin wall thermoplastic components has tapered studs facing the workpiece
EP1853404B1 (en) Ultrasound welding device with opposite welding and lateral surfaces that delimit a compression space, and a tool for such an ultrasound welding device
EP0155619B1 (en) Method for connecting metal sheets together
EP0227944B1 (en) Orthodontic appliance
DE60200731T2 (en) Plate internal high pressure forming and device
DE102012010870A1 (en) A welding auxiliary joining part and method for joining components to this welding auxiliary joining part
DE10011593A1 (en) Production of metallic, distorationless framework construction involves preparing the rotating friction-welding workpiece, contacting the workpiece projection against the connection and controlling the penetration depth of the rotating pin
DE102006003942A1 (en) Method for ultrasonic welding and building module, in particular motor vehicle door module
WO2005002778A2 (en) Welding device and method for welding workpieces
EP1354693B1 (en) Process for ultrasonic welding of thin walled parts
WO1998045065A1 (en) Diffusion welding process and device for joining sheet metal parts
EP2555903B1 (en) Method for welding together two planar components
DE10027735C1 (en) Thin-walled container, e.g. folded milk container, has overlapping wall sections that can be ultrasound welded transverse to their longitudinal edges, with offset section in area of overlap
EP0738819A2 (en) Method and punching tool for the fabrication of a joining of profiled work pieces and joining piece
DE502004002817C5 (en) TOOL FOR A ULTRASONIC WELDING DEVICE WITH A TIP TO REDUCE THE REMOVAL OF THE TOOL WORKING SURFACE
DE4035210C2 (en) Method for joining two or more thin-walled workpieces lying flat on one another, device for carrying out the method and workpiece structure produced by the method
DE4431989A1 (en) Welding machine for joining two thin metal sheets
WO2015086469A1 (en) Plastic-welding device
DE3342619C2 (en) Process and machine for ultrasonic welding of thermoplastic plastic parts
DE102005010269A1 (en) Method of producing a component from two elements having a curved and flat surface respectively as in motor vehicle production directs laser beam at the contact region between the two surfaces
DE3440270C2 (en)
DE19947751C1 (en) Treatment of the edge of a metal sheet for butt welding to another component gives a squeeze action to form a cut edge in sections for an improved weld at any angle of the sheet at the component
DE102011001497A1 (en) Connecting element for structurally engineered formwork system, has connection point provided with overlap of sheet metal area of bracket with another sheet metal area of another bracket
EP3835035A1 (en) Method for joining workpieces and assembled article
DE4443826C2 (en) Method and device for welding workpieces with laser radiation

Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20050616

R150 Term of protection extended to 6 years

Effective date: 20080206

R151 Term of protection extended to 8 years

Effective date: 20110111

R081 Change of applicant/patentee

Owner name: KLN ULTRASCHALL AG, DE

Free format text: FORMER OWNER: KLN ULTRASCHALL GMBH, 64646 HEPPENHEIM, DE

Effective date: 20110323

R152 Term of protection extended to 10 years

Effective date: 20130116

R071 Expiry of right
R071 Expiry of right