CLAMPING HEAD OF STRAIGHTENING AND STRETCHING MACHINE Russian patent published in 2003 - IPC

FIELD: plastic metal working, possibly straightening and stretching machines using high efforts for straightening articles of different materials. SUBSTANCE: clamping head includes two upper and two lower crossbars mutually joined in pairs by means of pins having supporting members; arranged between said crossbars wedge chocks engaging with movable wedges. Each crossbar includes arranged crosswise forged strips fixed one to another. Quantity of pins corresponds to number of strips. Each pin is smooth one and it is arranged in spacing member placed between crossbars. EFFECT: reduced size, simplified design, enhanced reliability of head. 2 dwg