BORING BAR Russian patent published in 2003 - IPC

FIELD: metal working. SUBSTANCE: boring bar includes body in which cutter is movably mounted. Cutter has members for dimension tuning of it by means of drive unit with the aid of feeler engaging with body. In order to enhance manufacturing possibilities and working accuracy, mandrel has axle designed for engaging with body; lever and roller. Said lever is designed for engaging with feeler, axle and roller; feeler is in the form of cone. Roller may be rotatably mounted in lever; feeler may have eccentricity. Members for dimension tuning of cutter may be in the form of adjustment screw with dial. EFFECT: enlarged manufacturing possibilities, improved accuracy of working. 4 cl, 7 dwg