Metallurgical apparatus – Means for cutting solid metal with heat – e.g. – blowpipes – Having torch spacing means
Patent
1998-09-08
1999-11-23
Kastler, Scott
Metallurgical apparatus
Means for cutting solid metal with heat, e.g., blowpipes
Having torch spacing means
266 48, B23K 710
Patent
active
059894857
ABSTRACT:
The invention relates to a coordinate thermal-cutting machine with a means for automatically setting the initial height of a torch, in particular a plasma torch, above a workpiece surface. In order to achieve a fast and exact setting of the igniting distance above the workpiece surface, the torch (28) is at least partially surrounded by an inner tubular enclosure (7), which is at least partially surrounded by an outer tubular enclosure (10), bearing elements (8, 9 and 29, 30) being arranged between the tubular enclosures (7, 10) in such a way that the inner tubular enclosure (7) is at least longitudinally displaceable with the torch (28), there also being provided a position sensor which senses the longitudinal displacement and, furthermore, the inner enclosure (7) is connected to a compensation device (35) which reduces the weight of the inner enclosure (7) with the torch (28).
REFERENCES:
patent: 4013277 (1977-03-01), Schmitt
patent: 4168822 (1979-09-01), Ogden
patent: 4328049 (1982-05-01), Richardson
patent: 4415795 (1983-11-01), Ross et al.
patent: 4773946 (1988-09-01), Griebeler
Schmall Karl-Heinz
Staacks Dieter
Kastler Scott
Messer Griesheim Schweisstechnik GmbH & Co.
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