Modular drill with cam clamping
AssigneeKennametal Inc.
InventorAlan J. Bookheimer
Life of this patent
Estimating the term…
Abstract
A modular drill is disclosed. The modular drill includes a tool shank extending along a rotational axis. The tool shank includes a shank top end and a shank bottom end along a rotational axis and includes a cam slot extending at least partially through a width of the tool shank. The modular drill includes a cutting head extending from a cutting head top surface to a cutting head bottom surface centered on the rotational axis. The cutting head includes a draw pin extending from the bottom surface of the cutting head along the rotational axis and a draw pin notch. The modular drill includes a clamping cam including a cam shaft contacting the draw pin notch.
Claims28
A modular drill comprising:
- a tool shank extending along a rotational axis comprising a shank top end and a shank bottom end along the rotational axis and comprising a cam slot extending at least partially through a width of the tool shank;
- a cutting head extending from a cutting head top surface to a cutting head bottom surface centered on the rotational axis, wherein the cutting head comprises:
- a draw pin extending from the cutting head bottom surface along the rotational axis;
- and
- a draw pin notch;
- and
- a clamping cam comprising a cam shaft structured and arranged to contact the draw pin notch.
A cutting head for a modular drill comprising:
- a cutting head top surface opposite a cutting head bottom surface centered along a rotational axis;
- a draw pin extending from the cutting head bottom surface along the rotational axis and structured and arranged to be releasably secured to a tool shank;
- and
- a draw pin notch extending at least a partial length through the width of the draw pin and structured and arranged to engage a clamping cam.
A tool shank for a modular drill, the tool shank having a rotational axis and comprising:
- a shank top end;
- a shank bottom end;
- a draw pin slot structured and arranged to receive a draw pin of a cutting head and aligned with the rotational axis;
- and
- a cam slot structured and arranged to receive a clamping cam;
- wherein the clam slot defines a central axis offset from the rotational axis.
Dependencies are inferred from the claim text.