Patent ID: 6994616
Filing Date: 2006-02-07
Classification: B24D

Abstract:
1. A grinding unit assembly, comprising a plural number of axial grinding units circumferentially arranged around a cylinder of a grinding machine, each grinding unit including: a grindstone holder having at least on one side face an axially extending rectangular positioning cutout having a cutout axial length, a thinly cut non-inclined grindstone bonded to an upper or lower end of the grindstone holder; a metal fixture having a metal body, the metal body having an axially and circumferentially extending protrusion adapted to fit in the positioning cutout, said protrusion being shorter in axial length than said cutout axial length; and a locking bolt threaded into the cylinder and arranged to clamp the metal body against the grindstone holder, said grindstone holder being axially adjustable relative to the cylinder upon loosening of the locking bolt without requiring removal of said protrusion from said positioning cutout.