Rotary cutting tool
AssigneeGTE Valenite Corporation
InventorDaniel R. Stashko
Life of this patent
Estimating the term…
Abstract
A rotary cutting tool including an elongated generally cylindrical holder having a recess into which is fitted a disposable cutting insert. The insert is held in place by a clamping member which bears against a surface of the insert and which is attached to the holder by a clamping screw. Radial adjustment of the insert can be effected by adjusting screws which have camming surfaces which bear against a corresponding camming surface of the insert. In axial cross section, the axis of each adjustment screw is parallel to the axis of the clamping screw and to a horizontal axis of the holder, and an axis of the insert is at an angle relative to a vertical axis of the holder.
Claims10
A rotary cutting tool, comprising:
- a holder which is elongated and generally cylindrical and to which can be attached a cutting insert, said holder having a longitudinal axis, and in axial cross section having a vertical axis perpendicular to a horizontal axis, one end of said holder having a recessed area including a first surface formed by the removal of a segment of said holder generally defined in axial cross section by an arc and chord of said holder;
- a first recess extending in an axial direction and into said holder from the periphery thereof, when viewing said holder in axial cross section said first recess being located at a first radius of said holder which is coincident with said vertical axis;
- a second recess extending in an axial direction and into said holder from the periphery thereof, when viewing said holder in axial cross section said second recess being located at a second radius of said holder which forms a first angle with said first radius;
- a first threaded aperture extending into said holder from said first surface along a first axis which is spaced from and parallel to said horizontal axis;
- a second threaded aperture extending into said holder from said first surface along a second axis which is spaced in an axial direction from said first axis and spaced from and parallel to said horizontal axis and said first axis;
- a third threaded aperture extending into said holder along a third axis which is parallel to said first and second axis;
- a third recess extending into said holder from the periphery thereof along a fourth axis which forms a second angle with said vertical axis and which is spaced about 180.degree. C. from said first radius;
- a first guide pad positioned within said first recess and having a first guide surface extending therefrom, said first guide pad having a first vertical axis which is coincident with said first radius;
- a second guide pad positioned within second recess and having a second guide surface extending therefrom, said second guide pad having a second vertical axis which is coincident with said second radius;
- a first adjusting screw threaded into said first threaded aperture and having a first camming surface for engaging a corresponding camming surface of said cutting insert;
- a second adjusting screw threaded into said second threaded aperture and having a second camming surface for engaging said corresponding camming surface of said cutting insert;
- a clamping screw threaded into said third threaded aperture;
- and,
- means attached to said elongated holder by said clamping screw for holding said cutting insert within said third recess such that a cutting edge of said cutting insert will extend along a fifth axis which is (a) parallel to said longitudinal axis and (b) spaced about 180.degree. C. from said first radius.
Dependencies are inferred from the claim text.