Device for machining grooves in a cylindrical bore, in particular of a brake master cylinder

摘要

A device for machining grooves ( 20 ) in a cylindrical bore emerging at the end of a master cylinder. The device includes a cylindrical tool ( 44 ) with a peripheral set of teeth ( 45 ) formed thereon by a series of cutting teeth ( 46 ). The tool ( 44 ) is inserted axially in the bore of the master cylinder ( 1 ) through a tool-holder shaft ( 39 ) that is initially driven in an orbital movement and later held immobile in rotation about its axis ( 42 ) and the master cylinder 1 ) and the tool-holder shaft ( 39 ) are thereafter separated from each other by axial translation.