WO2014090454A1 - Chalumeau de soudage muni d'un circuit d'identification - Google Patents

Chalumeau de soudage muni d'un circuit d'identification Download PDF

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Publication number
WO2014090454A1
WO2014090454A1 PCT/EP2013/071828 EP2013071828W WO2014090454A1 WO 2014090454 A1 WO2014090454 A1 WO 2014090454A1 EP 2013071828 W EP2013071828 W EP 2013071828W WO 2014090454 A1 WO2014090454 A1 WO 2014090454A1
Authority
WO
WIPO (PCT)
Prior art keywords
welding
welding torch
circuit
identification circuit
electronic identification
Prior art date
Application number
PCT/EP2013/071828
Other languages
German (de)
English (en)
Inventor
Mario KORNFELDNER
Thomas Feitzlmaier
Original Assignee
Fronius International 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 Fronius International Gmbh filed Critical Fronius International Gmbh
Publication of WO2014090454A1 publication Critical patent/WO2014090454A1/fr

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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
    • B23K9/00—Arc welding or cutting
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/29—Supporting devices adapted for making use of shielding means
    • B23K9/291—Supporting devices adapted for making use of shielding means the shielding means being a gas
    • B23K9/296—Supporting devices adapted for making use of shielding means the shielding means being a gas using non-consumable electrodes
    • 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
    • B23K37/006—Safety devices
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories

Definitions

  • the invention relates to a welding torch for welding a workpiece, which is identifiable by means of an electronic identification circuit.
  • the welding torch according to the invention is suitable, for example, for arc welding, in particular manual arc welding, tungsten inert gas welding or plasma welding, but also for other welding methods in which welding torches are used.
  • welding torches are known from the prior art. Such welding torches can also differ in their geometrical dimensions or also in the supplied welding current. For example, different welding torches have different welding pipe bends with different angles of inclination as well as lengths. The pipe bends can be interchangeable and be replaced manually or automatically, for. B. for welding different locations on a workpiece to be machined. Basically, the welding torch is connected to the hose package, for example via a coupling element.
  • this object is achieved by a replaceable welding torch having the features of independent claim 1.
  • a welding torch having the features of independent claim 1.
  • Such a welding torch avoids the disadvantages of the welding torches used hitherto and at the same time implements advantageous solutions.
  • the associated subclaims indicate favorable extensions.
  • a welding torch for welding workpieces which comprises a burner body and a pipe bend, wherein the welding torch is connectable to a hose package and the pipe bend has an electronic identification circuit, which is designed to identify at least one parameter of the pipe bend.
  • the arrangement of the circuit board with integrated identification circuit is particularly advantageous in that the direct arrangement in the pipe bend leads to an external arrangement of the components is avoided.
  • the arcuate circuit board which includes the electronic identification circuit, can be connected to a bus via electrical contacts. It is relevant that the bus is a serial bus, which on the one hand serves for the power supply of the electronic identification circuit, but is also provided for data transmission between the pipe bend and the control device of the welding device.
  • the electronic identification circuit of the welding torch has a data memory which can be read out via the bus for storing the at least one parameter of the welding torch.
  • the data of the readable data memory of the identification circuit contain an identifier for unambiguous identification of the pipe bend, the permissible welding current, the permissible operating time as well as geometric dimensions of the welding torch, which may be, for example, a bending angle or a length of the welding torch.
  • the identification of the elbow serves among other things to avoid damage. These can occur when welding torches of different sizes or lengths are used.
  • the identification circuit of the pipe bend has at least one sensor which, for example, can be a temperature sensor for detecting the temperature occurring during the welding process. However, it can also be a current sensor which serves to detect the permissible welding current value.
  • the identification circuit transmits the sensor data supplied by the sensors during the welding process for logging the welding process via the bus.
  • the detection of the temperature value as well as the permissible current value of the pipe bend is significant in that it can prevent damage to the welding torch or elbow prematurely. The same applies to the detection of the welding current flowing during the welding process.
  • the electronic identification circuit is a slave circuit which is connected to a master circuit of the welding torch and / or the welding device.
  • additional slave circuits in the welding torch and / or the welding device can form such a slave circuit or a wire-break can be such a slave circuit.
  • the possibility of monitoring the supplied type and amount of inert gas may also be such a slave circuit.
  • the possibility of using several slave circuits is to be regarded as particularly advantageous, because a meaningful extension of slave circuits is thus possible. Circuits results and one is therefore not reduced to a single application.
  • commands are transmitted via the bus, in particular control commands for searching for available slave circuits, control commands for writing data into a slave circuit, control commands for reading out data from a slave circuit and control commands for writing Data in a non-volatile memory.
  • the electronic identification circuit has a capacitor which, during communication taking place via the bus, powers the electronic identification circuit and which charges via the bus when communication is not taking place.
  • the data and / or commands transmitted in the bidirectional communication between the master circuit and the slave circuit are encoded in such a way that they are robust against electromagnetic disturbances that occur in a welding operation of the welding device.
  • This coding is to be regarded as particularly advantageous, because in this way an increased resistance in the context of the bidirectional data transmission transmitted data is achieved.
  • the electronic identification circuit detects a permissible welding current value in a further embodiment and compares it with a previously stored threshold value. If the threshold is exceeded, then an alarm message is output to the master circuit and / or the flowing welding current is reduced or turned off.
  • the electronic identification circuit offers the possibility that the service life of the exchangeable elbow is recorded and when the maximum permissible operating time is exceeded, a maintenance message is issued to the master circuit and / or the flowing welding current is turned off. It follows that there are no exceeding of the permissible maintenance intervals and so possible consequential damage can be avoided, which in particular with respect to the life of the welding torch and its individual components as well as the workpiece has a favorable effect.
  • Fig. 1 shows the schematic structure of the welding device
  • Fig. 2 is a sectional view of the installation situation for the
  • Figure 3 is a schematic plan view of the connection region of the pipe bend with the arrangement of the arcuate circuit board in which the electronic identification circuit is integrated.
  • FIG. 4 shows a block diagram for illustrating an embodiment of an identification circuit used in the welding device according to the invention.
  • the welding device has a welding torch 2, which can be connected to a hose package 6 by means of a mechanical coupling element 7.
  • the hose package 6 connects the welding torch 2 connected via the mechanical coupling element 7 to a central supply unit 8 of the welding device 1, which supplies the welding torch 2, for example, with current and protective gas.
  • the supply unit 8 can For example, provide the welding torch 2 with an electric welding current.
  • the supply lines are routed via the hose package 6.
  • the welding torch 2 according to the invention consists of a torch body 4 or burner handle and a pipe bend 3, wherein the pipe bend 3 contains an arcuate circuit board 5 in which an electronic identification circuit 13 for identifying at least one parameter of the welding torch
  • Fig. 2 shows a welding torch 2 with the integrated arcuate circuit board 5, wherein the welding torch 2, consisting of burner body and pipe bend 3, is shown. Also visible is the incorporated groove 9, in which the arcuate circuit board 5 is embedded. The depth of the incorporated groove 9 may be for example a few millimeters or is adapted to the dimensions of the circuit board 5.
  • the arcuate circuit board 5 has electrical contacts 10 via which it can be connected to the bus 18. Additionally recognizable are the ports 12 for various media, such as for the required shielding gas or a cooling medium, which can be used to cool the welding torch 2.
  • the electronic identification circuit 13, which is located on the circuit board 5, which is embedded in the groove 9, can be connected in one possible embodiment via electrical contacts to the bus 18 of the welding device 1.
  • the identification circuit 13 is located on a circuit board 5, which is embedded, for example, in a groove 9 of the burner body 4.
  • the electronic identification circuit 13 or the arcuate circuit board 5 is connected via the bus 18 to the central supply unit 8 of the welding device 1.
  • the bus 18 extends over the in Fig. 1 illustrated hose package 6.
  • the bus 18 is a serial bus. The serial bus is provided both for the power supply of the electronic identification circuit 13 of the welding torch 2 and for data transmission between the welding torch 2 and the remaining units of the welding device 1.
  • the electronic identification circuit 13 of the welding torch 2 has a data memory 17 which can be read out via the bus 18.
  • This data memory 17 serves to store at least one parameter of the welding torch 2.
  • the identification circuit 13 of the welding torch 2 has a microprocessor 14 which is connected to the bus 18 for bidirectional data transmission.
  • the microprocessor 14 is connected to the data memory 17 for writing and / or reading data.
  • the data memory 17 is fixedly provided on the circuit board 5 of the identification circuit 13. In an alternative embodiment, the data memory 17 of the identification circuit 13 is exchangeable.
  • the identification circuit 13 further comprises sensors. For example, a temperature sensor 15 for detecting a occurring in the welding torch 2 during the welding process temperature T. Furthermore, the identification circuit 13 in the embodiment shown in Fig. 4, a current sensor 16 for detecting a welding supplied to the welding torch 2 welding current I.
  • the parameters of the welding torch 2 stored in the readable data memory 17 comprise an identifier ID for unambiguously identifying the exchangeable pipe bend 3. The identifier may refer to the type of the respective exchangeable pipe bend 3, so that they are checked can, whether the pipe bend 3 for the welding torch 2 is allowed.
  • the readable data memory 17 the identification circuit 13 geometric dimensions of the pipe bend 3 stored.
  • the geometric dimensions include, for example, a curvature angle of the pipe bend 3, as shown in FIG. 1, or a length of the respective pipe bend 3.
  • the readable data memory 17 further parameters of the welding torch 2 can be stored. For example, 17 data or a value about a maximum permissible welding current I max for the respective welding torch 2 can be stored in the readable data memory.
  • the pipe bend 3 can transmit the welding device 1, for which maximum welding current of the pipe bend 3 is designed. Accordingly, the welding device 1 can make a current limit.
  • the microprocessor 14 writes the sensor data supplied by the sensors 15, 16 during the welding process for logging the welding operation into the readable data memory 17.
  • the microprocessor 14 can also transmit the sensor data via the bus 18 to the central supply unit 8 of the welding device 1. These recorded sensor data can be stored together with the identifier of the welding torch 2 in one possible embodiment.
  • This logged data sensor allows, for example, in a later detected damage to determine which welding torch 2 of the welding process has been performed, in addition to the mitaufge Stephen sensor data are available for evaluation.
  • the identification circuit 13, as shown in Fig. 4 a slave circuit which is coupled to a master circuit of the welding torch 2, wherein the master circuit via the bus 18 with the control device of the welding device 1 is connected.
  • the master circuit can be located, for example, in the welding torch 2.
  • the master circuit can also be arranged in the welding device 1.
  • the slave circuit according to the invention but also other types of slave circuits possible. So can eg. a slave circuit for feeding a wire electrode to the welding torch 2 and / or for a wire-break device, which causes a clamping of the wire electrode may be provided. Different slave circuits can perform different functions within the welding device 1.
  • the data line between the master and slave circuits is high and charges a storage capacitor in each one-wire -Slave circuit of the bus system is integrated.
  • the data line of the serial bus 18 is pulled low (low) and the slave circuit is fed from its storage capacitor with charge Q.
  • the slave circuit can also be supplied via the serial bus 18.
  • commands are transmitted via the bus 18 between the identification circuit 13, which is designed, for example, as a slave circuit, and a master circuit, which is arranged, for example, in the welding torch 2.
  • the commands include, for example, control commands to search for available slave circuits, control commands to write data to a slave circuit, control commands to read data from a slave circuit, and control commands to write data to nonvolatile memory.
  • the data or commands transmitted in the bidirectional communication between the master circuit and the slave circuit are preferably encoded in such a way that they are robust against electromagnetic interference which can occur during a welding operation of the welding torch 2 according to the invention.
  • the identification circuit 13 of the pipe bend 3 has an electrical capacitor which serves to supply power to the identification circuit 13. This capacitor supplies power to the identification circuit 13 at a communication taking place via the bus 18. fingers If no communication takes place via the bus 18, the capacitor is charged via the bus 18, for example a serial bus.
  • the identification circuit 13 detects the permissible threshold value of the welding current by means of a current sensor 16. It follows that when a threshold value is exceeded, an alarm message is sent to the master circuit and the welding current conducted to the welding torch 2 is reduced or completely switched off. It is possible that the reduction or shutdown of the welding current is caused locally by the microprocessor 14 of the identification circuit 13. Alternatively, this can also be caused by the master circuit.
  • the identification circuit 13 can detect the welding temperature occurring at the welding torch 2 during the welding process. When a threshold value of the monitored welding temperature is exceeded, the identification circuit 13 can also send an alarm message to the master circuit of the welding device 1 and / or reduce or switch off the flowing welding current.
  • the identification circuit 13 further records the operating time of the welding torch 2 or pipe bend 3 and transmits a maintenance message to the master circuit of the welding device 1 when a maximum permissible operating time is exceeded. This, in turn, allows the maximum permissible operating time to be exceeded switched off at the welding torch 2 welding current is turned off or prevented.
  • the identifier located in the data memory 17 can additionally be used as a plagiarism protection. If, for example, the central master circuit determines that the coupled welding torch 2 contains no permissible identifier of the manufacturer of the welding device 1, the central Supply unit 8 to prevent the supply of the welding torch 2.
  • serial bus 18 can also be a one-wire bus. It is a serial bus that has a data line that is used for both the power supply and the transmit and receive lines.
  • the serial bus 18 has two physical connections, namely ground or ground GND and a data line.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Arc Welding In General (AREA)

Abstract

L'invention concerne un dispositif de soudage (1) permettant de souder une pièce et comprenant un chalumeau de soudage (2) remplaçable, qui peut être raccordé au moyen d'un élément d'accouplement (7) mécanique à un ensemble de tuyaux flexibles (6) du dispositif de soudage (1). Le coude tubulaire (3) comprend une plaquette de circuit imprimé (5) en forme d'arc, qui comporte un circuit d'identification (13) électronique permettant l'identification d'au moins un paramètre du chalumeau de soudage (2) remplaçable.
PCT/EP2013/071828 2012-12-14 2013-10-18 Chalumeau de soudage muni d'un circuit d'identification WO2014090454A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012223214.1A DE102012223214B4 (de) 2012-12-14 2012-12-14 Schweißbrenner mit integrierter Identifikationsschaltung
DE102012223214.1 2012-12-14

Publications (1)

Publication Number Publication Date
WO2014090454A1 true WO2014090454A1 (fr) 2014-06-19

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ID=49447547

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/071828 WO2014090454A1 (fr) 2012-12-14 2013-10-18 Chalumeau de soudage muni d'un circuit d'identification

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DE (1) DE102012223214B4 (fr)
WO (1) WO2014090454A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6821902B2 (ja) * 2016-08-18 2021-01-27 株式会社ダイヘン 熱加工用トーチ、電源装置、ワイヤ送給装置、および、熱加工システム
EP3424633A1 (fr) 2017-07-04 2019-01-09 Fronius International GmbH Dispositif de serrage destiné au serrage d'une électrode de soudage
JP7195319B2 (ja) * 2017-11-29 2022-12-23 テルソニック・ホールディング・アー・ゲー 超音波機械加工装置、超音波機械加工装置を構成するための方法、およびこのタイプの超音波機械加工装置を有するシステム
DE102020112463A1 (de) * 2020-05-07 2021-11-11 Illinois Tool Works Inc. Orbitalschweißvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230642A2 (fr) * 1985-12-30 1987-08-05 Gte Valenite Corporation Système d'identification d'outils
JPH0623550A (ja) * 1992-07-08 1994-02-01 Toshiba Corp 自動溶接装置
EP1757397A1 (fr) * 2005-08-25 2007-02-28 Lincoln Global, Inc. Torche pour un système de soudage à l'arc électrique
DE202010007364U1 (de) * 2009-05-29 2010-08-12 Fronius International Gmbh Brennerwechselmodul, Schweißbrenner, Rohrbogen, Brennerhalterung, Schlauchpaket für einen Schweißbrenner, Aufnahmemodul und Brennerwechselsystem

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6130407A (en) * 1998-07-29 2000-10-10 Tregaskiss, Ltd. Arc welding torch
AT407019B (de) * 1999-01-27 2000-11-27 Fronius Schweissmasch Schweissbrenner und zugehörige schweissanlage sowie verfahren zur gegenseitigen anpassung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230642A2 (fr) * 1985-12-30 1987-08-05 Gte Valenite Corporation Système d'identification d'outils
JPH0623550A (ja) * 1992-07-08 1994-02-01 Toshiba Corp 自動溶接装置
EP1757397A1 (fr) * 2005-08-25 2007-02-28 Lincoln Global, Inc. Torche pour un système de soudage à l'arc électrique
DE202010007364U1 (de) * 2009-05-29 2010-08-12 Fronius International Gmbh Brennerwechselmodul, Schweißbrenner, Rohrbogen, Brennerhalterung, Schlauchpaket für einen Schweißbrenner, Aufnahmemodul und Brennerwechselsystem

Also Published As

Publication number Publication date
DE102012223214B4 (de) 2017-09-21
DE102012223214A1 (de) 2014-06-18

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