CUTTING TOOL, HOLDER AND METHOD OF CUTTING TOOL ASSEMBLY Russian patent published in 2014 - IPC B23B29/00 B23B31/107 

FIELD: process engineering.

SUBSTANCE: cutting tool (10) has bit (14) and holder (12). Bit (14) has cutting part (16) and stem (18) with cylindrical part and out-of-round part (30). Holder (12) has clamp part furnished with clamp bush (42) and cup (40) arranged therein. Cup has seat (48) for load application element (62). Said cup has large thrust wall connected with smaller thrust wall. Clamp bush (42) has first and second inner parts confined by two points P₁ and P₂. Point P₃ divides second inner part into first and second section. Clamp bush (42) can turn between cutting tool clamping and unclamping positions. At unclamping position, said out-of-round part rests on large thrust wall while cylindrical part rests on smaller thrust wall and load application element resting, in its turn, on first section.

EFFECT: ease of insert handling.

13 cl, 8 dwg