FIELD: nuclear power production, working of thin-wall zirconium tubes.
SUBSTANCE: apparatus includes holder, bi-cone detachable sleeve having several segments; clamp having body where rollers are mounted with possibility of free rotation; attachment for setting gap between rollers and blank. Said attachment includes elastic member arranged between supporting rings and driven by means of translation motion, mainly axial motion of bi-cone detachable sleeve. Apparatus also includes threaded ring joined with holder and having in its inner end cone member engaged with bi-cone sleeve; and locking nut mounted behind threaded ring with possibility of screwing on it for resting upon end of holder. Threaded ring may have grooves for adjusting wrench.
EFFECT: shortened time period for tuning automatic lathe, improved efficiency of working, enhanced characteristics of spacing grids due to lowered number of their surface flaws.
2 cl, 1 dwg
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Authors
Dates
2007-08-20—Published
2005-06-03—Filed