Patent ID: 9249850
Filing Date: 2016-02-02
CPC Classification: B23B,B23Q,B25J,F16F

Claim Text:
1. A machine tool equipped with a floating mechanism for machining a workpiece by using various tools fit to a machine having a robot arm or a numerical control (NC) device, the machine tool comprising: a hollow cylinder section including a tubular piston; a tool driving section at least one portion of which is fixed in an internal space of the hollow cylinder section to drive the various tools; and a floating section which exists between the tool driving section and the hollow cylinder section, wherein one portion of the floating section comes in contact with the tubular piston and is pressed by the tubular piston at a predetermined pressure; and said floating section includes a hollow circular-plate-shaped inner ring having an outer circumferential surface portion, a top surface portion, and a bottom surface portion, and an outer ring having an inner circumferential surface portion and an inner ring receiving portion, the outer ring being fixed to a side of the robot arm, the inner ring being fixed to a side of the tool driving section, and an outer circumferential surface of the inner ring being formed of a spherical surface equidistant from a center point of the hollow circular-plate-shaped inner ring.