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Publication of BG63334B1publicationCriticalpatent/BG63334B1/en
The device is used for roll mandrel application ofthin-walled and tick-walled short and long tubular billets ofdifferent diameters, wall-thicknesses and lengths. It consists ofa front (fixed) and rear mobile (2) clamping head with jaws (3)basing the billet (5) along technological grooves axiallyassembled and fixed to the bottom of a hydraulic power cylinder(6) and to its piston rod (7), respectively. Cylinder (6) iscoaxially mounted and is fixed to a support plate (9) to theopposite side to its bottom, plate (9) having a central hole witha rest (11) elastically mounted in it.
BG100950A1996-10-311996-10-31Device for mandrel machining
BG63334B1
(en)
Floor type forging press having piston, which has coaxial hole for supplying pressure medium and is fixed in work direction, and moving cylinder working as tool holder