Tool holder with centering adjustment
AssigneeHydra-Lock Corporation
InventorRobert Laube
Life of this patent
Estimating the term…
Abstract
A tool holder for a machine tool is provided with a tool shank clamping mechanism in the form of an expanding or contracting sleeve, hydraulically actuated, and the chuck has an annular groove aft of an annular collar on the clamping mechanism. Circumferentially spaced conical screws, mounted axially in the collar, bear against the body of the tool chuck and allow fractional tilting of the clamping mechanism relative to the true holder and spindle axis to provide exact centering of the cutting end of the mounted tool.
Claims6
A tool holder for mounting an elongate tool for rotation in a machine tool comprising:
- (a) an elongate body having a central recess to receive a holding shank of an elongate tool, said body having a first portion to be mounted for rotation in a machine tool and a second portion to receive the shank of a tool, an annular groove between said first and second portions,
- (b) means in said second portion to clamp a tool shank, and
- (c) adjustment means comprising a plurality of circumferentially spaced conical point screws each threaded into opposite sides of said groove to adjust the angle of said second portion relative to the centerline of said first portion to center a cutting end of the elongate tool on said center line.
A tool holder for mounting an elongate tool for rotation in a machine tool comprising:
- (a) an elongate body having a central recess to receive a holding shank of an elongate tool, said body having a first portion to be mounted for rotation in a machine tool and a second portion to receive the shank of a tool, said portions being separated by a radially narrowed portion, said narrowed portion comprising a groove between said first and second portions,
- (b) means in said second portion to clamp a tool shank, and
- (c) an adjustment means comprising a plurality of circumferentially spaced conical screws threaded into opposite sides of said groove to adjust the angle of said second portion relative to the centerline of said first portion to center a cutting end of the elongate tool on said center line.
Dependencies are inferred from the claim text.