METHOD AND DEVICE FOR SPOT WELDING

PROBLEM TO BE SOLVED: To provide a method and a device for spot welding which enables a jointing quality to be kept constant regardless of a positional deviation of a work. SOLUTION: The device for spot welding machine 10 has a joining head 11 and a backing and pressurizing mechanism 20, the joining...

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Bibliographische Detailangaben
Hauptverfasser:	HEIKO TAKEHIRO, MURAKAMI AKIYOSHI, INUZUKA MASAYUKI, NAGAO YASUE
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method and a device for spot welding which enables a jointing quality to be kept constant regardless of a positional deviation of a work. SOLUTION: The device for spot welding machine 10 has a joining head 11 and a backing and pressurizing mechanism 20, the joining head 11 has a joining tool 18 and a motor 16 for rotation, and the backing and pressurizing mechanism 20 has a backing table 19 and a backing and pressurizing cylinder 13. The device for spot joining 10 is so positioned that a joining point of the work is located under a pin 26 of the joining tool 18, the backing table 19 is pushed up by the backing and pressurizing cylinder 13 while the joining tool 18 is rotating at high speed, and the work is joined by being elastically deformed, bent, and pressurized against the joining tool 18. The work is detached from the joining tool when the pressurizing force is relieved after the completion of joining.