Patent ID: 9415452
Filing Date: 2016-08-16
CPC Classification: B23B,B23C,B23Q,Y10T

Claim Text:
1. A tool holder attaching/detaching structure of a machine tool, comprising: a base member having a seating surface; a rotating member having depressions and projections on an outer periphery and rotatably mounted on the base member; and a tool holder in a ring shape having depressions and projections on an inner periphery and having a plurality of cutting tools on an outer periphery, wherein, by aligning the depressions and the projections of the tool holder with the projections and the depressions of the rotating member, the tool holder is mountable to or removable from the base member; and a ring-shaped clamping member mounted on the base member, wherein the tool holder is clamped to the base member by the clamping member pressing the tool holder against the seating surface, wherein the tool holder is clamped to the base member by being pressed against the seating surface of the base member, wherein the tool holder is clamped to the base member by the clamping member pressing the tool holder against the seating surface in a state where the rotating member is rotated so that the projections of the rotating member and the projections of the tool holder at least partly overlap with each other, and wherein the clamping member is rotatably mounted on the base member and has depressions and projections on an outer periphery, and wherein the depressions of the rotating member and the clamping member are tapered grooves which continuously become wider toward portions more apart from the seating surface.