Patent ID: 6382888
Filing Date: 2002-05-07
Classification: B23B,B23Q,Y10T

Abstract:
A vibration-dampened spindle and tool holder assembly for a rotary cutting machine, the assembly comprising:a) a spindle for retaining a tool holder, the spindle including a concentrically disposed axial recess with an axial distal entrance thereto; b) a tool holder having a proximal end for retention within the axial recess of the spindle and an interfacing ledge immediately distal said proximal end, said ledge having a top surface with a distal radial portion for abutment with a spindle surface surrounding the entrance to the axial recess; c) an annular continuous channel disposed in a proximal radial portion of the top surface of the interfacing ledge; and d) an annular resilient dampening member disposed in the annular channel and sized to at least fill said channel, said dampening member having an exposed top for compressed abutment with said spindle surface.