DEVICE FOR MICROFEED OF BLANKS IN PROCESS OF GRINDING Russian patent published in 2000 - IPC

FIELD: mechanical engineering. SUBSTANCE: device has base, upper plate positioned in parallel to base and fitted with blank fastening appliance. Device also includes piezoelectric element, power element arranged in parallel to base and containing two wedges which serve as cores of electromagnets secured on power element body. Piezoelectric element and wedges enable variation of power element length. Power element moves upper plate relative to base through system of wedges secured on upper plate and base. EFFECT: enhanced rigidity and accuracy. 2 dwg