DE2210692A1 - Welder contact nozzle - which can be rapidly removed, for use with a tuyere connection - Google Patents

Welder contact nozzle - which can be rapidly removed, for use with a tuyere connection

Info

Publication number
DE2210692A1
DE2210692A1 DE19722210692 DE2210692A DE2210692A1 DE 2210692 A1 DE2210692 A1 DE 2210692A1 DE 19722210692 DE19722210692 DE 19722210692 DE 2210692 A DE2210692 A DE 2210692A DE 2210692 A1 DE2210692 A1 DE 2210692A1
Authority
DE
Germany
Prior art keywords
nozzle
contact nozzle
contact
conical
tuyere connection
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.)
Pending
Application number
DE19722210692
Other languages
German (de)
Inventor
Herbert Fassbach
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE19722210692 priority Critical patent/DE2210692A1/en
Publication of DE2210692A1 publication Critical patent/DE2210692A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/12Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
    • B23K9/122Devices for guiding electrodes, e.g. guide tubes
    • B23K9/123Serving also as contacting devices supplying welding current to an electrode

Abstract

Contact nozzle for a shielded arc welder is secured to a tuyere connection and has a conical attachment for insertion into a conical recess in the tuyere connection. Pref. the contact nozzle is a sintered metal contg. W to reduced wear and tear and increase service life.

Description

Kontaktdüse für einen Schutzgas-Schweißbrenner Die Erfindung bezieht sich auf eine Kontaktdüse für einen Schutzgas-Schweißbrenner, die an einem Düsenstock befestigt ist. Contact nozzle for a gas shielded welding torch The invention relates on a contact nozzle for a shielding gas welding torch attached to a nozzle holder is attached.

Seither werden Kontaktdiisen in den Düsenstock eingeschraubt. Dadurch werden zwar die Kontaktdüsen sicher festgehalten, es tritt aber der Nachteil aut, daß die Kontaktdüsen, die ganz in der Nähe des Lichtbogens liegen und hohem Verschleiß unterworfen sind, nur mühsam ausgewechselt werden können, weil sie unter dem Einfluß starker T einperat uruchwani; ungen schrumpfen.Since then, contact nozzles have been screwed into the nozzle holder. Through this the contact nozzles are held securely, but there is the disadvantage that that the contact nozzles, which are very close to the arc, and high wear are subject to, can only be changed with difficulty because they are under the influence strong temperature uruchwani; shrinkage.

Der Erfindung liegt die Aufgabe zugrunde, den geschilderten Nachteil zu beseitigen. Erfindungsgemäß wird die gestellte Aufgabe dadurch gelost, daß an der Kontaktdüse ein konischer Ansatz zum Einstecken in eine am düsenstock vorgesehene konische Ausnenmung angeordnet ist. bureh die Anordnung eines konischen Ansatzes an einer Kontaktdüse und der Anordnung einer entsprechenden konischen Ausnehmung ain Düsenstock ist ein schneller Ersatz einer unbrauchbar gewordenen Kontaktdüse möglich. Die Verbindung läßt sich leicht lösen und wieuer herstellen.The invention is based on the problem described above to eliminate. According to the invention, the object is achieved in that on the contact nozzle has a conical extension for insertion into one provided on the nozzle assembly conical Ausnenmung is arranged. bureh the arrangement of a conical approach on a contact nozzle and the arrangement of a corresponding conical recess A nozzle holder is a quick replacement for a contact nozzle that has become unusable possible. The connection can be easily loosened and re-established.

Durch die Anordnung einer konischen Verbindung zwischen einer Kontaktdüse und den Düsenstock ist es gemäß einem weiteren Merkmal der Erfindung möglich, die Kontaktdüse aus Sintermetall mit Wolfram-Anteilen zu festigen. Eine solche Kontaktdüse bringt wesehtlich höhere Standzeiten als eine übliche Kontaktdüse aus Kupfer.By arranging a conical connection between a contact nozzle and the nozzle assembly it is possible according to a further feature of the invention, the To strengthen contact nozzle made of sintered metal with tungsten components. Such a contact nozzle has a significantly longer service life than a conventional contact nozzle made of copper.

In der Zeichnung ist ein Schutzgas-Schweißbrenner mit einer erfindungsgemäßen Kontaktdüse in einem Ausführungsbeispiel dargestellt.In the drawing is a gas shielded welding torch with an inventive Contact nozzle shown in one embodiment.

An einem Brenner-Schutzrchr leines Schutzgas-Schweißbrennersist mit einer Überwurfmutter 2 unter Zwischenschaltung einer Gasdüse 3 und einer Isolierbüchse 4 ein innerhalb dieser Isolierbüchse liegender Düsenstock 5 befestigt, der zur Halterung einer aus der Isolierbüchse 4 herausragenden Kontaktdüse 6 dient. Die Kontaktdüse 6 dient zur Führung und Kontaktgabe für den Schweißdraht 7, der automatisch zugeführt wird. Durch die Geschwindigkeit, mit welcher der Schweißdraht zugeführt wird, verschleißt eine Kontaktdüse verhältnismäßig schnell und sie muß ausgewechselt werden. Damit ein solches Auswechseln schnell und ohne mühe erfolgen kann, ist die Kontaktdüse 6 mit einem konischen Aneatz 8 versehen anJ sitzt slit diesem in einer elltsprechend konischen Ausnehmung 9 in Düsencotock. Der Kegelwinkel am konischen Ansatz 8 und in der konischen Ausnehmung 9 ist so bemessen, daß ein selbsthemmender sitz der Kontektdüse im düsenstock errecht wird.A shielding gas welding torch is also attached to a torch guard a union nut 2 with the interposition of a gas nozzle 3 and an insulating sleeve 4, a nozzle assembly 5 located within this insulating sleeve is attached, which is used for holding a contact nozzle 6 protruding from the insulating sleeve 4 is used. The contact nozzle 6 is used to guide and make contact for the welding wire 7, which is automatically fed will. Wears due to the speed at which the welding wire is fed in a contact nozzle relatively quickly and it must be replaced. In order to Such a replacement can be done quickly and without effort, is the contact nozzle 6, provided with a conical attachment 8, sits on it in a corresponding manner conical recess 9 in nozzle cotock. The cone angle at the conical approach 8 and in the conical recess 9 is dimensioned so that a self-locking seat of the Contact nozzle in the nozzle assembly is reached.

Da durch die anordnung eines konischen Ansatzes 8 an der Kontaktdüse 6 die Kontaktdüse gegellüber einer solchen mit Gewinde konstruktiv vereinfacht ist, kann die sontaktdüse aus einem Sintermetall mit Wolfram-Anteilen gefertigt werden, so daß sie sich nicht so schnell abnützt und wesentlich größere Standzeiten erzielt werden.Because by the arrangement of a conical extension 8 on the contact nozzle 6 the contact nozzle is structurally simplified compared to one with a thread, the contact nozzle can be made of one Sintered metal with tungsten components are manufactured so that they do not wear out as quickly and are much larger Tool life can be achieved.

Claims (2)

AnsprücheExpectations 1. Kontaktdüse für einen Schutzgas-Schweißbrenner, die an einem Düsenstock befestigt ist, dadurch gekennzeichnet, daß an der Kontaktdüse (6) ein konischer Ansatz (ö) zum Einstecken in eine am Düsenstock (5) vorgesenene konesche Ausnehmung (9) angeordnet ist.1. Contact nozzle for a shielding gas welding torch attached to a nozzle holder is attached, characterized in that on the contact nozzle (6) a conical Approach (ö) for insertion into a conical recess cut into the nozzle assembly (5) (9) is arranged. 2. wontaktdüse nach Anspruch 1, dadurch gekennzeichnct, daX sie aus Sintermetall mit Wolfram-Anteilen besteht.2. contact nozzle according to claim 1, characterized in that they are made from There is sintered metal with tungsten components.
DE19722210692 1972-03-06 1972-03-06 Welder contact nozzle - which can be rapidly removed, for use with a tuyere connection Pending DE2210692A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19722210692 DE2210692A1 (en) 1972-03-06 1972-03-06 Welder contact nozzle - which can be rapidly removed, for use with a tuyere connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722210692 DE2210692A1 (en) 1972-03-06 1972-03-06 Welder contact nozzle - which can be rapidly removed, for use with a tuyere connection

Publications (1)

Publication Number Publication Date
DE2210692A1 true DE2210692A1 (en) 1973-09-13

Family

ID=5838043

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722210692 Pending DE2210692A1 (en) 1972-03-06 1972-03-06 Welder contact nozzle - which can be rapidly removed, for use with a tuyere connection

Country Status (1)

Country Link
DE (1) DE2210692A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074106A1 (en) * 1981-09-09 1983-03-16 Alexander Binzel GmbH & Co. KG Water-cooled protective gas welding torch for automatic welding appliances with a gas nozzle with internal blow-out facilities
DE3426410A1 (en) * 1984-07-18 1986-01-23 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart WELDING TORCH FOR PLASMA MIG WELDING
US9199330B2 (en) 2011-11-13 2015-12-01 Victor Equipment Company Hollow contact tip-diffuser for GMAW manual/robotic arc welding MIG guns

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074106A1 (en) * 1981-09-09 1983-03-16 Alexander Binzel GmbH & Co. KG Water-cooled protective gas welding torch for automatic welding appliances with a gas nozzle with internal blow-out facilities
DE3426410A1 (en) * 1984-07-18 1986-01-23 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart WELDING TORCH FOR PLASMA MIG WELDING
US9199330B2 (en) 2011-11-13 2015-12-01 Victor Equipment Company Hollow contact tip-diffuser for GMAW manual/robotic arc welding MIG guns
US9481047B2 (en) 2011-11-13 2016-11-01 Victor Equipment Company Gas diffuser for GMAW manual/robotic arc welding MIG guns

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