US 6,476,354 B1Granted

Method for controlling a welding apparatus and corresponding control device

AssigneeFronius Schweissmaschinen Produktion GmbH & Co. KG

InventorsVinzenz Jank, Manfred Rührnössl, Rupert Frauenschuh, Helmut Friedl

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Abstract

The invention describes a method of controlling a welding unit (1) and a current source (2), in which various welding parameters, such as a welding current, a welding wire diameter, a welding method etc., for example, can be set by a user from an input and/or output device (22). The set welding parameters are applied to a control device (4). The welding unit (1) and the current source (2) are then activated by the control device (4) in accordance with the predetermined welding parameters. Prior to, during and/or after start-up of the welding process, the user can set a surface area or a cross section of a weld seam, in particular a fillet weld, from the input and/or output device (22), after which the control device (4) scans and/or retrieves and displays desired values for additional parameters needed to form the weld seam and/or for the welding procedure, stored in a memory device in particular.

Claims27

Dependent claims

A method of controlling a welding unit comprising a current source to produce a pre-set welding seam, which comprises the steps of

(a) setting and storing by an input or output device, before the start of a welding process, various welding parameters selected from the group of the welding current, the welding wire diameter, the welding speed and a surface area or cross section of a welding seam as well as a measurement of the welding seam with various parameters selected from the group of the seam thickness, the seam width and the side length of the seam,
(1) the seam thickness being displayed by a light-emitting diode and a symbol on a front plate of the input or output device and being called up for the measurement of the welding seam,
(b) retrieving and displaying the stored parameters for the formation of desired parameters of the welding seam for the welding process,
(c) entering the stored parameters in a control device, and
(d) controlling the welding unit comprising the current source by the control device containing the stored parameters while continuously adjusting the stored parameters to the prevailing welding speed or the welding speed to the stored parameters to produce the pre-set welding seam.

2 more elements

Dependencies are inferred from the claim text.