BORING HEAD Russian patent published in 1995 - IPC

FIELD: metal working. SUBSTANCE: boring head has a cutter toolholder in the form of micrometric screw 1. A cradle for fastening cutting plate 2 is made on one of its ends. A dowel interacting with the gap of boring bar 6 is made on the other end. Limb in the form of two nuts interacts with screw 1. One of the nuts can be shifted relative to the other in the axial direction sampling thus a gap. The limb is mounted in the bush with nonius and is fixed in it with the aid of the groove of the retaining ring and flexible member made as gaps on the generatrix of the limb disposed on both sides of the retaining ring. EFFECT: enhanced accuracy of the hole working. 1 cl, 14 dwg