APPARATUS FOR CENTERING BLANKS FOR PIERCING Russian patent published in 2003 - IPC

FIELD: tube production equipment, namely apparatuses for centering tube blanks for piercing. SUBSTANCE: apparatus includes transporting unit; housing with inclined guides; clamping mechanism driven by means of hydraulic cylinder; rod with striker; hydraulic cylinder for pressing rod with striker; stop for blank. Clamping mechanism is in the form of wedge jaws arranged with inclination by angle equal to 120 degrees one relative to another and placed in guides mounted on inclined faces of housing. Housing has window for lateral discharging of centered blanks; depth of said window is no less than distance from end of centering unit until stop for blank. One ends of hydraulic cylinders for clamping wedge jaws are joined with movable sleeve; their other ends are secured to housing. Wedge jaws are movably joined with movable sleeve by means of tie rods whose one ends are spring-loaded relative to movable sleeve. Housing has window for lateral discharging of blanks. EFFECT: enhanced accuracy of centering, reduced time period of centering, enhanced reliability and increased useful time period of apparatus. 4 dwg