DE3440065A1 - Process for finding edges with a welding nozzle and/or cutting nozzle which is moved towards a workpiece edge and out of which gas flows - Google Patents

Process for finding edges with a welding nozzle and/or cutting nozzle which is moved towards a workpiece edge and out of which gas flows

Info

Publication number
DE3440065A1
DE3440065A1 DE19843440065 DE3440065A DE3440065A1 DE 3440065 A1 DE3440065 A1 DE 3440065A1 DE 19843440065 DE19843440065 DE 19843440065 DE 3440065 A DE3440065 A DE 3440065A DE 3440065 A1 DE3440065 A1 DE 3440065A1
Authority
DE
Germany
Prior art keywords
heating
cutting
nozzle
gas
oxygen
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Withdrawn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
DE19843440065
Other languages
German (de)
Inventor
Manfred Dr. 6100 Darmstadt Nicolai
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim 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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Priority to DE19843440065 priority Critical patent/DE3440065A1/en
Priority to AT84114686T priority patent/ATE37813T1/en
Priority to EP84114686A priority patent/EP0148405B1/en
Publication of DE3440065A1 publication Critical patent/DE3440065A1/en
Withdrawn legal-status Critical Current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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/1462—Nozzles; Features related to nozzles
    • B23K26/1464—Supply to, or discharge from, nozzles of media, e.g. gas, powder, wire
    • B23K26/1476—Features inside the nozzle for feeding the fluid stream through the nozzle
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/1435—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor involving specially adapted flow control means
    • B23K26/1436—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor involving specially adapted flow control means for pressure control
    • 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
    • B23K7/00—Cutting, scarfing, or desurfacing by applying flames
    • B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Gas Burners (AREA)

Abstract

In order to achieve fewer production idle times, simplified ways of edge-finding and activation in comparison with the process for finding edges according to the main patent ... (Patent Application P 3344933.3-45), the gas stream is formed from the burning heating gas/heating oxygen mixture.

Description

Kennwort: Sensordüse mit HeizflammePassword: sensor nozzle with heating flame

Verfahren zur Kantenfindung mit einer auf eine Werkstückkante zubewegten qasausströmenden Schweiß- und/oder Schneiddüse Zusatz zu Patent ... (Patentanmeldung P 33 44 933.3-45) Die Erfindung betrifft ein Verfahren zur Kantenfindung mit einer auf eine Werkstückkante zubewegten gasausströmenden Schweiß- und/o3er Schneiddüse, wobei ein aus der Düse austretender Gasstrahl tei Erreichen der Werkstückkante in einem Meßraum eine Druckdifferenz erzeugt und ein Signal zur Steuerung des Schweiß- oder Schneidvorganges auslöst nach Patent ...Process for edge finding with a moving towards a workpiece edge qas outflowing welding and / or cutting nozzle Addition to patent ... (patent application P 33 44 933.3-45) The invention relates to a method for finding edges with a Gas-emitting welding and / or cutting nozzle moving towards a workpiece edge, a gas jet emerging from the nozzle tei reaching the workpiece edge in a pressure difference is generated in a measuring chamber and a signal for controlling the welding or cutting process triggers according to patent ...

(Patentanmeldung P 33 44 933.3-45).(Patent application P 33 44 933.3-45).

Im Vergleich mit der im Hauptpatent ... (Patentanmeldung P 33 44 933.4-45) als Stand der Technik genannten Kantenfindung ist durch einen aus der Düse austretenden Gasstrahl nach der Lehre des Hauptpatentes eine deutliche Verbesserung hinsichtlich der Genauigkeit, der Schnelligkeit und des Personaleinsatzes erreicht worden. Nachteilig ist jedoch, daß nach Beendigung eines Brennschnittes bzw. von Brennschnitten die Heizgas-/ Heizsauerstoffleitung geschlossen werden muß, so daß die Heizflamme verlöscht und beim Anfahren der nächsten Werkstückkante die Heizgas-/Heizsauerstoffleitung zur Kantenfindung wieder geöffnet werden muß. Dies ist insbesondere bei der Anordnung einer Brennschneidmaschine in einer Fließstraße von Nachteil, wenn die zu bearbeitenden Werkstückteile,wie z. B. Blechplatten mittels eines Rollganges kontinuierlich oder taktweise unter der Brennschneidmaschine verfahren werden.In comparison with the one in the main patent ... (patent application P 33 44 933.4-45) Edge finding mentioned as the state of the art is by means of an emerging from the nozzle Gas jet according to the teaching of the main patent is a significant improvement in terms of the accuracy, the speed and the use of personnel been. However, it is disadvantageous that after completion of a flame cut or of Flame cuts the heating gas / heating oxygen line must be closed so that the heating flame goes out and when the next workpiece edge is approached, the heating gas / heating oxygen line must be opened again to find the edge. This is particularly the case with the arrangement a flame cutting machine in a flow line is disadvantageous if the Workpiece parts such. B. sheet metal plates by means of a roller table continuously or be moved cyclically under the cutting machine.

Der Erfindung liegt die Aufgabe zugrunde, die oben geschilderten Nachteile des Verfahrens nach dem Hauptpatent ... (P 33 44 933.3-45) zu vermeiden und dieses Verfahren dahingehend weiterzuentwickeln, daß weniger Fertigungsnebenzeiten, eine vereinfachte Kantenfindung und eine vereinfachte Ansteuerung erreicht werden.The invention is based on the disadvantages outlined above of the procedure according to the main patent ... (P 33 44 933.3-45) and to avoid this To further develop processes in such a way that less non-productive production times, one Simplified edge finding and simplified control can be achieved.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Gasstrahl aus dem brennenden Heizgas- Heizsauerstoffgemisch gebildet wird. Die mit der Erfindung erreichten Vorteile bestehen insbesondere darin, daß der Brenner mit brennender Heizflamme von einem bearbeiteten Werkstück direkt zur Werkstückkante des nächsten noch zu bearbeitenden Werkstück verfahren werden kann, ohne daß die Heizgas- Heizsauerstoffleitung geschlossen und wieder entsprechend dem Durchsatzvolumen der Düse geöffnet werden muß. Dies führt zum Fortfall von Steuereinrichtungen und somit zur Vereinfachung der Einrichtung zur Kantenfindung.According to the invention, this object is achieved in that the gas jet is formed from the burning fuel gas heating oxygen mixture. The one with the invention Achieved advantages are in particular that the burner with burning Heating flame from one machined workpiece directly to the workpiece edge of the next workpiece still to be machined can be moved without the heating gas heating oxygen line closed and opened again according to the throughput volume of the nozzle got to. This leads to the omission of control devices and thus to simplification the device for finding edges.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and is described in more detail below.

In der Zeichnung ist eine Düse 39 schematisch dargestellt, bei der der Kanal 19 für das Heizgas-/Heizsauerstoff mit 19 bezeichnet ist. Die Düse 39 steht dabei in einem bestimmten Abstand zu dem nicht näher dargestellten Werkstück und wird auf die Werkstückkante dieses Werkstückes zubewegt. Aus der vorzugsweise ringförmigen Ausströmöffnung des Kanales 19 für Heizgas- Heizsauerstoff tritt das Heiz-#as- Heizsauerstoffgemisch (Pfeilrichtung 46) aus und wird anschließend gezündet. Die aus diesem brennenden Heizgas-Heizsauerstoffgemisch bestehende Heizflamme verbrennt hierbei die Gase. Beim Erreichen der Kante eines Werkstückes erzeugen die brennenden Gase in dem zentralen Schneidsauerstoffkanal 44 einen Ueberdruck, der wie in dem Hauptpatent ... (Patentanmeldung P 33 44 933.3-45)beschrieben, in ein Signal umgeformt wird und den nicht näher dargestellten Querantrieb und/oder Längsantrieb der Brennschneideinrichtung bschalte.In the drawing, a nozzle 39 is shown schematically in which the channel 19 for the heating gas / heating oxygen is designated by 19. The nozzle 39 stands at a certain distance from the workpiece, which is not shown in detail and is moved towards the workpiece edge of this workpiece. From the preferably annular outflow opening of the channel 19 for heating gas heating oxygen occurs Heating # as heating oxygen mixture (direction of arrow 46) and is then ignited. The heating flame consisting of this burning fuel gas and heating oxygen mixture burns here the gases. When reaching the edge of a workpiece, the burning Gases in the central cutting oxygen channel 44 have an overpressure which, as in the Main patent ... (patent application P 33 44 933.3-45) described, converted into a signal and the transverse drive and / or longitudinal drive of the flame cutting device, not shown in detail switch off.

Claims (2)

Ansprüche 1. Verfahren zur Kantenfindung-mit einer auf eine Werkstückkante zubewegten gasausströmenden Schweiß- und/oder Schneiddüse wobei ein aus der Düse austretender Gasstrahl beim Erreichen der Werkstückkante in einem Meßraum eine Druckdifferenz erzeugt und ein Signal zur Steuerung des Schweiß- oder Schneidvorganges auslöst nach Patent ... (Patentanmeldung P 33 44 933.3-45) dadurch gekennzeichnet, daß der Gasstrahl aus dem brennenden Heizgas- Heizsauerstoffgemisch gebildet wird.Claims 1. A method for finding edges with one on a workpiece edge moving gas-flowing welding and / or cutting nozzle with one from the nozzle exiting gas jet when reaching the workpiece edge in a measuring space a pressure difference generated and triggers a signal to control the welding or cutting process according to patent ... (patent application P 33 44 933.3-45) characterized in that the Gas jet is formed from the burning fuel gas heating oxygen mixture. 2. Brennschneideinrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß der Schneidbrenner der Sensor ist und an der Heizgas-/ Heizsauerstoff- oder Schneidsauerstoffleitung eine Signalvorrichtung angeschlossen ist, so daß durch die von dem Heizgas- Heizsauerstoffkanai.(19) mit Heizgas- Heizsauerstoff ver sorgte brennende Heizflamme beim Erreichen der Kante in dem Schneidsauerstoffkanal einen Überdruck und dadurch ein Signal erzeugt.2. Flame cutting device for performing the method according to claim 1, characterized in that the cutting torch is the sensor and the heating gas / Heating oxygen or cutting oxygen line connected to a signal device is, so that by the heating gas heating oxygen channel. (19) with heating gas heating oxygen ver provided a burning heating flame when reaching the edge in the cutting oxygen channel an overpressure and thereby a signal is generated.
DE19843440065 1983-12-13 1984-11-02 Process for finding edges with a welding nozzle and/or cutting nozzle which is moved towards a workpiece edge and out of which gas flows Withdrawn DE3440065A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19843440065 DE3440065A1 (en) 1984-11-02 1984-11-02 Process for finding edges with a welding nozzle and/or cutting nozzle which is moved towards a workpiece edge and out of which gas flows
AT84114686T ATE37813T1 (en) 1983-12-13 1984-12-03 METHOD FOR FINDING THE EDGE OF A GAS-OUTLET WELDING AND/OR CUTTING NOZZLE MOVING TOWARDS A WORKPIECE EDGE.
EP84114686A EP0148405B1 (en) 1983-12-13 1984-12-03 Method of finding the edge by a gas discharging mouth of a welding and/or cutting torch being moved towards the edge of a work piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843440065 DE3440065A1 (en) 1984-11-02 1984-11-02 Process for finding edges with a welding nozzle and/or cutting nozzle which is moved towards a workpiece edge and out of which gas flows

Publications (1)

Publication Number Publication Date
DE3440065A1 true DE3440065A1 (en) 1986-05-15

Family

ID=6249326

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843440065 Withdrawn DE3440065A1 (en) 1983-12-13 1984-11-02 Process for finding edges with a welding nozzle and/or cutting nozzle which is moved towards a workpiece edge and out of which gas flows

Country Status (1)

Country Link
DE (1) DE3440065A1 (en)

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