APPARATUS FOR MAKING PROFILED STEMS OF ONE-SIDE CUTTING DRILLS Russian patent published in 1999 - IPC

FIELD: equipment for manufacturing profiled stems of one-side cutting drills. SUBSTANCE: apparatus includes device for profiling and device for straightening blanks, both combined in the same unit. Housing for placing changeable draw die is mounted on table of device for straightening blanks or it is made monolithically with it. Said table is mounted in common supporting frame with possibility of rotation around vertical axis. Axis of draw die and line for mounting supporting members determining position of axes of straightened blanks are mutually parallel and spaced by the same distance from table axis. According to performed operation, profiling roller and pressure member for straightening are mounted in the same holder joined with power drive unit for vertically moving it. Rotation axis of table of said combined unit is shifted relative to axis of vertical motion of holder with respective tool in parallel with axis of blank drawing by value equal to distance between table rotation axis and axis of draw die. EFFECT: enlarged manufacturing possibilities, enhanced productivity of straightening operations, effectiveness of production process. 2 cl, 7 dwg