EP3471911A1 - Dispositif de soudage par ultrasons comprenant un dispositif de serrage et procédé de soudage par ultrasons - Google Patents

Dispositif de soudage par ultrasons comprenant un dispositif de serrage et procédé de soudage par ultrasons

Info

Publication number
EP3471911A1
EP3471911A1 EP17729869.2A EP17729869A EP3471911A1 EP 3471911 A1 EP3471911 A1 EP 3471911A1 EP 17729869 A EP17729869 A EP 17729869A EP 3471911 A1 EP3471911 A1 EP 3471911A1
Authority
EP
European Patent Office
Prior art keywords
anvil
sonotrode
ultrasonic welding
closing
working surface
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.)
Withdrawn
Application number
EP17729869.2A
Other languages
German (de)
English (en)
Inventor
Peter Solenthaler
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.)
Telsonic Holding AG
Original Assignee
Telsonic Holding AG
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 Telsonic Holding AG filed Critical Telsonic Holding AG
Publication of EP3471911A1 publication Critical patent/EP3471911A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • B23K2101/38—Conductors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/12—Copper or alloys thereof

Definitions

  • the present invention relates to ultrasonic welding devices with a clamping device and method for ultrasonic welding of particular elongated
  • Welding material in particular of electrical conductors such as in ⁇ strands, or terminals.
  • a device for ultrasonic bonding of electrical conductors includes an anvil member which is transversely displaceable to a working surface of a sonotrode ⁇ means of a guide.
  • the guide extends across the work surface across the work surface.
  • DE 10 2006 021 651 B4 relates to an ultrasonic welding station and a method for operating the same.
  • Welding station includes a sonotrode, a counter electrode (ie in other words an anvil) and two side delimiters, which enclose a compression space in a conventional manner and are movable relative to each other.
  • Welding station contains tensioning means for clamping the counterelectrode with respect to its adjacent side limiter.
  • the clamping means are designed as a holding ⁇ yoke.
  • an ultrasonic welding device comprising a sonotrode with a working surface, includes an anvil having a working surface and two side regulators with jeweili ⁇ gen page boundary surfaces.
  • the working surface of the anvil is opposite the working surface of the sonotrode.
  • the work surfaces of the sonotrode and the anvil and the side ⁇ limiting surfaces limit a compression space for inserting particular elongated material to be welded in a
  • the welding material may be in particular electrical conductors such as strands. They can also be terminals.
  • the direction of the material to be welded in particular a longitudinal direction of the elongated material to be welded, is regarded here as the direction of the welding material.
  • the ultrasonic welding device has a clamping device, by means of which the anvil can be braced in the direction of the sonotrode by a clamping force, at least in a welding position.
  • a clamping force acts to ⁇ least a part of one of the working surface of the anvil against ⁇ opposite working surface of the anvil.
  • an attack surface of the anvil faces the working surface of the anvil when the surface normals of the work surface and the attack surface include an obtuse angle and at least a portion of the projected to the plane of the work surface at ⁇ grip surface is at least partially within the work surface.
  • an obtuse angle here is also considered an angle of 180 °.
  • the engagement surface is formed by one of the working surface of the anvil opposite outer side of the anvil or by a part of this outer side.
  • One of the working surface of the anvil opposite the outside may also have at least one step, wherein the attack surface is formed only by one of the Ar ⁇ beits Structure opposite outside of the step.
  • the attack surface in the interior of the anvil is arranged at ⁇ , that is between the working surface and the overlying against ⁇ outer side of the anvil.
  • the anvil can be braced in the direction of the sonotrode with the aid of a bolt which penetrates laterally into it.
  • the tensioning means is formed and arranged such that the anvil, at least in the Schweissposi- tion in substantially the whole application surface, in particular on the entire opposite outer side, acting tensioning force in the direction of the sonotrode ver ⁇ can be tensioned by a. This can be a particularly effective
  • the clamping device has a closing device which, at least in the welding position, can be brought into contact with at least part of the engagement surface, in particular with the entire engagement surface, in order to clamp the anvil in the direction of the sonotrode.
  • the clamping force can then be transferred from the closing device to the anvil.
  • the closing device can be arranged, for example, on the outside of the working surface of the anvil, or be formed by a bolt as described above.
  • the locking device may be bar-shaped, which allows a particularly good introduction of force.
  • the locking device is arranged displaceable relative to the sonotrode in a closing direction between an open position and the welding position, wherein the closing ⁇ direction parallel to the working surface of the sonotrode and perpendicular to the right ⁇ Schweissgutraum. This facilitates the insertion of the weld material in the Sch spagutraum.
  • the closing device In the open position, the closing device need not necessarily be in contact with the attack surface.
  • the closing device is displaceably arranged in the closing direction on the anvil.
  • the closing device can be positioned more precisely relative to the anvil, which simplifies the introduction of the clamping force.
  • the closing device but also on another Part of the ultrasonic welding device to be arranged displaceably in the closing direction.
  • the closing device is held at two opposite ends. In this way, a symmetrical force can be achieved in the closing device and thus in the anvil.
  • the force is here al ⁇ so after a "portal principle".
  • the tensioning device has at least one towing device, which is arranged relative to the Sono in a direction perpendicular to the working ver ⁇ pushed, at least in the welding position by means of a first tensile part of the pulling device, a first end of the closing device is durable and by means of a second tensile part of the pulling device, a second end of the
  • Closing device is durable. By shifting the drawbar perpendicular to the working surface of the sonotrode can be adjusted in this way, the height of the compression space who ⁇ .
  • the pulling device can be moved to the working surface of the sonotrode, whereby the view is facilitated in the compression chamber.
  • the drawbar can then be moved away from the work surface of the sonotrode so that the closing device can close the compression space above the inserted weld material.
  • the traversed by the pulling device adjustment can be selected depending on the total cross section of the inserted weld. If this total cross-section ver ⁇ comparatively small, it may be sufficient to move the pulling device only a portion of the maximum possible adjustment path, whereby the process times can be reduced.
  • the drawbar to reduce the compression space and for welding can be moved back to the working surface of the sonotrode.
  • this movement can take place symmetrically.
  • the anvil is in the above-mentioned he ⁇ closing direction which is parallel to the working surface of the sonotrode and perpendicularly to Schweissgutraum, ver ⁇ slidably disposed on the first pulling part. In this way, the compression chamber can be opened and closed.
  • the first pulling part contains a transverse bar running parallel to the welding material direction and at least two longitudinal bars running perpendicular to the working surface of the sonotrode.
  • the transverse bar is formed, at least in the welding position, for holding the first end of the closing device, and the longitudinal bars hold the transverse bar, in particular at its two ends.
  • an opening is formed through which the anvil, a first side limiter and the locking device can be guided in the intermediate space formed between the pulling parts.
  • Closing device through the opening formed between the longitudinal beams ensures a compact and symmetrical Bauwei ⁇ se.
  • the second pulling part includes a extending parallel to the crossbar and at least two Schweissgutides perpendicular to the working surface of the sonotrode ver ⁇ current longitudinal beams is.
  • the transverse bar is formed and arranged at least in the welding position for holding the second end of the closing device, and the longitudinal bars ⁇ bar hold the crossbar, in particular at both its ends. Between the longitudinal beams, an opening is formed, through which a second side limiter can be guided in the intermediate space formed between the tension parts.
  • This implementation also ensures a compact and symmetrical Bauwei ⁇ se. Overall, therefore, the crossbeams and the locking device, via the longitudinal beams, the tension in the anvil Weglei ⁇ tet.
  • the locking device may also include a temperature control with which the locking device and the anvil can be heated, in particular chilled or heated ⁇ ge.
  • the temperature control may include a thermal treatment for a tempering fluid, particularly a cooling fluid or a heating fluid, which may be a gas or a FLÜS ⁇ stechnik for example, such as water.
  • the temperature control device can keep a Peltier element or a heating wire ent.
  • the closing device may include at least one sensor with which a welding parameter can be determined, for example a force, a temperature or a position.
  • a force sensor is preferably arranged in the closing device, since it is then in the force flow.
  • the sensors mentioned can serve for quality control. As a result, in particular missing individual wires ("missing strands") can be detected.
  • the ultrasonic welding device according to the invention has the advantage that it is robust and compact.
  • the invention also relates to a method for ultrasonic welding, which can be carried out in particular with an ultrasonic welding device as described above.
  • the method comprises the following steps: a) insertion of in particular oblong weld material in a direction of the weld material into a compression space of an ultrasonic welding device: b) closing the compression chamber to achieve a welding position; c) clamping an anvil of the ultrasonic welding device by a clamping force which acts on at least part of an attack surface of the anvil opposite a working surface of the anvil, in the direction of a sonotrode of the ultrasonic welding device; d) welding the weld material (60) by applying ultrasound.
  • step c) the anvil is braced in the direction of the sonotrode by a clamping force acting essentially on the entire attack surface.
  • step c) a
  • a locking device in contact with at least a portion of the engagement surface, in particular with the entire excsflä ⁇ che to clamp the anvil in the direction of the sonotrode.
  • the closing device is moved in step b) relative to the sonotrode in a closing direction which is parallel to a working surface of the sonotrode and senk ⁇ right to Sch thoroughlygutides, from an open position to a welding position.
  • step b) the anvil is displaced in the mentioned closing direction.
  • the inventive method is also particularly suitable for a welding or a cascade sequence welding in which weld metal, in particular strands from different material ⁇ lien such as copper or aluminum is welded. It is advantageous, for example, if initially a or several copper strands are welded with a first set of welding parameters, then the compression ⁇ space is opened again, then one or more aluminum strands are additionally inserted and then all the strands are welded together with a second set of welding parameters.
  • Ultrasonic welding can be linear or torsional ultrasonic welding.
  • the sonotrode may be formed in a manner known per se.
  • FIG. 1 shows a perspective view of an ultrasonic welding device according to the invention in an open position
  • FIG. 2 is a side view of the ultrasonic welding device in a welding position
  • FIG. 3 shows a side view of the ultrasonic welding device in the opening position with inserted welding material
  • Figure 4 a side view of the ultrasonic welding device in the welding position with inserted weld.
  • Ul ⁇ traschallschweissvorraum 50 includes a horn 8 with a working surface 10, an anvil 4 having a Häflä ⁇ surface 11 of the sonotrode is of the working surface 10 8 opposite ⁇ , and a first side regulators 6 and a second side delimiter 5 with respective side boundary surfaces 12, 13.
  • the work surfaces 10, 11 of the sonotrode 8 and the anvil ses 4 and the side boundary surfaces 12, 13 limit one Compaction space 9, which is designed for insertion of welding material 60 in a Sch bulkgutraum E.
  • the ultrasonic welding device 50 further has a clamping device 14. By means of this tensioning device 14, the anvil 4 in the illustrated in Figures 2 and 4
  • Welding position S are clamped by a clamping force in the direction of the sonotrode 8.
  • the clamping force acts on an opposite An ⁇ gripping surface 26 of the anvil 4, which his Schwarze ⁇ che. 11
  • the engagement surface 26 is formed by one of the working surface 11 opposite ⁇ lying outside 15 of the anvil. 4
  • the surfaces ⁇ normal N of the working surface 11 and the surface normal M of the engagement surface 26 thus enclose an angle of 180 ° and the perpendicular proji ⁇ ed to the plane of the working surface 11 engaging surface 26 lies partially within the Ar ⁇ beits Structure. 11
  • the tensioning device 14 has a pulling device 2, 3, which is arranged relative to the sonotrode 8 in a direction perpendicular to the working surface 10 slidably. Furthermore, the tensioning device 14 has a bar-shaped closing device 1, which in the welding position S shown in FIGS. 2 and 4 is in contact with the engagement surface 26 in order to clamp the anvil 4 in the direction of the sonotrode 8. In the welding position S, a first end 16 of the closing device 1 is durable by means of a first pulling part 2 of the pulling device, and by means of a second pulling part 3 of the pulling device 2, 3 is a second end 17 of the closing device 1 durable.
  • the first tension member 2 includes a parallel to
  • welding material E extending transverse bar 18 which holds the first end 16 of the closing device 1 in the welding position S.
  • the first traction part 2 contains two perpendicular to the working surface 10 of the sonotrode 8 extending Llvesbai- ken 20, which hold the crossbar 18, and at both its ends 19. Between the longitudinal beam 20, an opening 21 is formed, through which the anvil 4, the first side limiter ⁇ 6 and the locking device 1 in between the tension parts 2, 3 formed gap are feasible.
  • the second tension member 3 includes a parallel to
  • Welding material E extending transverse bar 22, which holds the second end 17 of the closing device 1 in the welding position S.
  • Two longitudinal beams 24 extending perpendicularly to the work surface 10 of the sonotrode 8 hold the crossbar 22 at both its ends 23.
  • An opening 25 is formed between the longitudinal beams 20, through which the second side limiter 5 can be guided in the interspace formed between the tension parts 2, 3 is to limit the compression space 9.
  • the closing device 1 is relative to the sonotrode 8 in a closing direction R, which runs parallel to the working surface 10 of the So ⁇ notrode 8 and perpendicular to the material E, between an opening position 0 shown in Figures 1 and 3 and reproduced in Figures 2 and 4
  • Welding position S slidably disposed on the anvil 4.
  • the anvil 4 is in turn arranged in the mentioned closing direction R displaceable on the first pulling part 2.
  • the anvil 4 is braced in the direction of the sonotrode 8 by a clamping force acting essentially on the entire engagement surface 26.
  • Sch bulkgutcardiettid E are inserted into the compression chamber 9.
  • three or more strands can also be welded.
  • the anvil 4 will be used together with the Closing device 1 pulled out through the opening 21 from the space between the two pulling parts 2, 3, and the pulling device 2, 3 in the direction of the sonotrode 8 moves. This results in the position shown in Figure 3 opening ⁇ position 0.
  • the arrangement of the individual components of the ultrasonic welding device 50 in the open position 0 permits a good view of the compression chamber 9 and the
  • a step b) the compression space 9 is closed by the pulling device 2, 3 is moved away from the sonotrode 8.
  • the displacement of the pulling device 2, 3 can be selected depending on the total cross section of the inserted Lit ⁇ zen 60.
  • the inventive ultrasonic welding device ⁇ 50 is particularly robust and compact, and we reached a symmetrical force transmission. As a result, the ultrasonic welding device 50 is particularly suitable for the

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un dispositif de soudage par ultrasons (50) contenant une sonotrode (8) dotée d'une surface de travail (10), une enclume (4) dotée d'une surface de travail (11) qui est en regard de la surface de travail (10) de la sonotrode (8), deux éléments de limitation latéraux (5, 6) dotés de surfaces de limitation latérales (12, 13) respectives, les surfaces de travail (10, 11) de la sonotrode (8) et de l'enclume (4) et les surfaces de limitation latérales (12, 13) délimitant un espace de compression (9) qui est conçu pour l'insertion de métal d'apport de soudage (60) en particulier allongé dans une direction de métal d'apport de soudage (B), le dispositif de soudage par ultrasons (50) comprenant un dispositif de serrage (14) au moyen duquel l'enclume (4) peut être, au moins dans une position de soudage (S), serrée en direction de la sonotrode (8) par une force de serrage qui agit sur au moins une partie d'un côté (15), en regard de la surface de travail (11) de l'enclume (4), de la surface de contact (26) de l'enclume (4). L'invention concerne en outre un procédé de soudage par ultrasons.
EP17729869.2A 2016-06-15 2017-06-14 Dispositif de soudage par ultrasons comprenant un dispositif de serrage et procédé de soudage par ultrasons Withdrawn EP3471911A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016210590.6A DE102016210590A1 (de) 2016-06-15 2016-06-15 Ultraschallschweissvorrichtung mit Spanneinrichtung und Verfahren zum Ultraschallschweissen
PCT/EP2017/064474 WO2017216199A1 (fr) 2016-06-15 2017-06-14 Dispositif de soudage par ultrasons comprenant un dispositif de serrage et procédé de soudage par ultrasons

Publications (1)

Publication Number Publication Date
EP3471911A1 true EP3471911A1 (fr) 2019-04-24

Family

ID=59055222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17729869.2A Withdrawn EP3471911A1 (fr) 2016-06-15 2017-06-14 Dispositif de soudage par ultrasons comprenant un dispositif de serrage et procédé de soudage par ultrasons

Country Status (5)

Country Link
US (1) US11370056B2 (fr)
EP (1) EP3471911A1 (fr)
CN (1) CN109311118B (fr)
DE (1) DE102016210590A1 (fr)
WO (1) WO2017216199A1 (fr)

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DE102017104615A1 (de) * 2017-03-06 2018-09-06 Auto-Kabel Management Gmbh Ultraschallschweißvorrichtung und Verfahren zum Ultraschallschweißen
US11517977B2 (en) * 2017-09-15 2022-12-06 Tech-Sonic, Inc. Dual cam servo weld splicer
WO2019105539A1 (fr) * 2017-11-29 2019-06-06 Telsonic Holding Ag Dispositif d'usinage par ultrasons, procédé pour la configuration d'un dispositif d'usinage par ultrasons, système comprenant un tel dispositif d'usinage par ultrasons
DE102019122308A1 (de) * 2019-08-20 2021-02-25 Baosteel Lasertechnik Gmbh Verfahren zum Transport bei der Herstellung eines geschweißten T-Träger Profils
DE102019132719B4 (de) * 2019-12-02 2022-06-15 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zum Herstellen eines Duroplast-Thermoplast-Verbunds

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DE19813121C1 (de) * 1998-03-25 1999-10-28 Kuesters Eduard Maschf Vorrichtung zum Bearbeiten einer Materialbahn mit Ultraschall
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JP4768343B2 (ja) * 2005-07-27 2011-09-07 株式会社デンソー 半導体素子の実装方法
EP1772223A1 (fr) 2005-10-07 2007-04-11 Telsonic Holding AG Dispositif de soudage par ultrasons de conducteurs électriques avec des moyens de guidage de l'enclume s'étendant au-delà de la surface de travail de la sonotrode
JP2007149421A (ja) * 2005-11-25 2007-06-14 Yazaki Corp 超音波接合方法及びその装置並びに電線束
DE102006021651B4 (de) 2006-05-08 2008-02-14 Ultrasonics Steckmann Gmbh Ultraschall-Schweißstation sowie Verfahren zum Betreiben einer Ultraschall-Schweißstation
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Also Published As

Publication number Publication date
US20190224777A1 (en) 2019-07-25
US11370056B2 (en) 2022-06-28
WO2017216199A1 (fr) 2017-12-21
DE102016210590A1 (de) 2017-12-21
CN109311118A (zh) 2019-02-05
CN109311118B (zh) 2021-11-02

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