DEVICE FOR MICRO FEED OF BILLETS IN GRINDING Russian patent published in 2014 - IPC B24B47/20 

FIELD: process engineering.

SUBSTANCE: invention relates to abrasion and may be used in machine building for finishing the parts by grinding. Proposed device comprises bed, top plate arranged in parallel therewith and power element composed of thrust and rod fitted in power element case. Two cylindrical guides and four wedges are secured at said base and top plate. Two plates supporting four balls arranged at guide wedges to displace therein are fitted on opposite ends of power element. Table with vertical axle furnished with gear is arranged at top plate in ball guides to engage with rack. The latter has threaded hole for rack to interact with micro screw coupled with controlled reversing geared motor arranged inside top plate.

EFFECT: higher precision and quality, reliable operation.

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