WELDING WIRE FEED CONTROLLER

PURPOSE: To provide a welding wire feed controller which maintains an optimum wire molting state by additionally lowering the generation frequency of spatters in TIG welding. CONSTITUTION: This welding wire feed controller has a pull motor 16 which is arranged on a welding torch side and is subjecte...

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Bibliographic Details
Main Authors TERADA TETSUJI, NAKAZAWA NOBUO, HORI KATSUYOSHI
Format Patent
LanguageEnglish
Published 26.11.1996
Edition6
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:PURPOSE: To provide a welding wire feed controller which maintains an optimum wire molting state by additionally lowering the generation frequency of spatters in TIG welding. CONSTITUTION: This welding wire feed controller has a pull motor 16 which is arranged on a welding torch side and is subjected to constant speed control, a push motor 20 which is arranged on a wire reel side, a conduit 8 which guides the wire between the pull motor 16 and the push motor 20, an elongator/ contractor 18 which elongates and contracts a guide route for the wire and a detecting means 36 which detects the elongation and contraction state of the elongator/contractor 18. The welding wire feed controller constituted to control the rotation of the push motor 20 so as to attain always the specified length of the elongator/contractor in accordance with the signal from the detecting means 36 is provided with a feed resistance detecting means for detecting the wire feed resistance between the pull motor 16 and base metals by detecting the driving current of the pull motor 16 which is independently subjected to the constant speed control.
Bibliography:Application Number: JP19950121785