TOOL FOR REALIZING WORKING OPERATIONS AT CHIPPING IN MACHINE TOOL Russian patent published in 2004 - IPC

FIELD: cutting processes and equipment, namely tools having mechanically fastened cutting tips. SUBSTANCE: tool includes body having in peripheral surface one or several recesses restricted by means of front wall, rear wall and base and extending outside from base. Each recess is designed for placing cartridge with seat for mounting cutting tip and clamping wedge for fixing cartridge and tightened by means of clamping screw engaged with threaded opening inside tool body arranged in base of recess. Rear wall of recess has first corrugations that may engage with similar second corrugations in rear side of cartridge opposite relative to cutting tip. Front wall of recess is smooth and it engages with smooth front face of clamping wedge. Rear supporting surface of clamping wedge and front supporting surface of cartridge are also smooth for providing at their mutual contact radial displacement of clamping wedge relative to cartridge at fixing it. In order to improve accuracy of adjustment, front and rear surfaces of clamping wedge are mutually parallel and clamping wedge has inner portion in which said rear supporting surface is arranged and outer portion in which secondary supporting surface shifted backwards relative to said rear supporting surface is arranged. Front supporting surface on inner portion of cartridge shifted inside relative to seat of cartridge behind cutting tip passes in parallel to front wall of recess at fixed positions of corrugations of cartridge in corrugations on rear wall of recess. Inner portion of clamping wedge may be introduced into space between front supporting surface of cartridge and front wall of recess due to tightening clamping screw for providing temporary outer fixation position of cartridge at mutual engagement of corrugations of cartridge and rear wall of recess without forcing secondary supporting surface of clamping wedge to cutting tip and for realizing final inner position of tightening when secondary supporting surface of clamping wedge is forced to upper surface of cutting tip for fixing it in seat of cartridge. EFFECT: improved design of tool, enhanced accuracy of adjustment. 9 cl, 10 dwg