Quick change spindle adaptor for tool holder
AssigneeT.M. Smith Tool International Corporation
InventorsDean H. Hollifield, Frank R. Schultz, III
Life of this patent
Estimating the term…
Abstract
A quick change spindle adaptor for a power driven spindle having an axial bore and a tool holder having a shank axially projected into the spindle. A sleeve is secured upon the spindle and an outer shell is rotatably mounted upon the sleeve and retained thereon and includes a nut. A conical recess within the inner bore surface at the forward end of the spindle defines an axial bearing and receives a centering cone on the tool holder for maintaining an axial self alignment of the tool holder and spindle. Spaced threaded segments upon the tool holder are threadedly engaged by the nut for axially anchoring the tool holder upon the spindle and for biasing the centering cone into engagement with the spindle bearing.
Claims21
A tool holder and quick change spindle adaptor for a power driven spindle having an axial bore and a forward end;
- a tool holder having a shank at its inner end axially projected into and keyed to said spindle;
- a sleeve mounted upon the spindle;
- means to secure the sleeve on the spindle;
- an outer shell rotatably mounted upon said sleeve;
- means to retain the shell against longitudinal movement;
- an interiorly threaded nut upon said shell arranged forwardly of said spindle;
- a conical recess within the inner bore surface at the forward end of said spindle defining an axial bearing;
- a centering cone on and around said tool holder intermediate its ends and forwardly of said shank in snug operative and axial registry with said axial bearing for maintaining an axial self alignment of said tool holder and spindle;
- and
- threaded means upon said tool holder forwardly of said centering cone, threadedly engaged by said nut for axially anchoring said tool holder upon said spindle and for biasing said centering cone into continuous inward engagement and nesting within said spindle bearing.
In a spindle adaptor and tool holder assembly including a power rotated spindle having a bore and a forward end adapted to receive a tool holder, a sleeve mounted upon the spindle, means to secure the sleeve on the spindle, the tool holder assembly including a tool holder mounting a tool and having a shank at its inner end slidably projected into the spindle bore and keyed to said spindle;
- the improvement comprising a conical recess within the inner bore surface at the forward end of said spindle defining a conical bearing;
- a centering cone upon and around said tool holder forwardly of said shank, in snug and axial registry with said bearing, maintaining an axial self-alignment of said tool holder and spindle;
- an outer shell rotatably mounted upon said sleeve;
- means to retain the shell against longitudinal movement;
- an internally threaded nut upon said shell arranged forwardly of said spindle;
- and
- threaded means upon said tool holder forwardly of said centering cone threadedly engaged by said nut for axially anchoring said tool holder upon said spindle and for biasing said centering cone into continuous inward engagement and nesting within said spindle bearing.
A tool holder and quick change spindle adaptor for a power driven spindle having an axial bore and a forward end;
- a tool holder having a shank at its inner end axially projected into and keyed to said spindle;
- a sleeve mounted upon the spindle;
- means to secure the sleeve on the spindle;
- an outer shell rotatably mounted upon said sleeve;
- means to retain the shell against longitudinal movement;
- an interiorly threaded nut upon said shell arranged forwardly of said spindle;
- cooperating means on said spindle and tool holder for maintaining an axial self alignment of said tool and spindle;
- and
- threaded means upon said tool holder threadedly engaged by said nut on rotation thereof for axially anchoring said tool holder upon said spindle.
In a spindle adaptor and tool holder assembly including a power rotated spindle having a bore and a forward end adapted to receive a tool holder, and a sleeve mounted upon the spindle and means to secure the sleeve on the spindle;
- the tool holder assembly including tool holder mounting a tool and having a shank at its inner end slidably projected into the spindle bore and keyed to said spindle;
- cooperating means on said spindle and tool holder for maintaining an axially self alignment of said tool holder and spindle;
- the improvement comprising an outer shell rotatably mounted upon said sleeve;
- means to retain the shell against longitudinal movement;
- an internally threaded nut upon said shell arranged forwardly of said spindle;
- and
- threaded means upon said tool holder engaged by said nut for axially anchoring said tool holder upon said spindle.
Dependencies are inferred from the claim text.