Toolholder and toolholder assembly with elongated seating pads
AssigneeKennametal Inc.
InventorsKonrad Spitzenberger, Karen A. Craig, Srinivas Cherla
Life of this patent
Estimating the term…
Abstract
A toolholder has a pocket adapted to receive a double-sided on-edge cutting insert, wherein the corners of each side of the insert are radially shifted with respect to one another and has mounting pads preferably mounted about the sides of the cutting insert. The relief area for the corners of the insert is selectively fabricated to maximize the length of the support pads within the pocket of the toolholder.
Claims25
A toolholder for use in a metalworking operation, wherein the toolholder is adapted to hold an on-edge cutting insert with a depth and having first and second opposing segments about a central plane and with a central axis therethrough, wherein each segment has at least three sides and associated corners defining end cutting edges and, wherein each segment is radially offset relative to the other, wherein the toolholder comprises:
- a) a body extending along a longitudinal axis and having a first end;
- b) a pocket extending into the first end, wherein the pocket has at least two sides and the general shape and depth of the cutting insert intended to be held therein and, wherein the at least two sides intersect to define a pocket corner;
- c) a primary deep relief area located within the pocket corner and associated with a segment corner of the first segment and, wherein the primary deep relief area extends substantially to the depth of the cutting insert intended to be held within the pocket;
- d) a primary shallow relief area located within the same pocket corner and associated with a segment corner of the second segment and, wherein the primary shallow relief area is adapted to accommodate only the segment corner of the second segment and, wherein the primary shallow relief area extends only to the depth of the second segment;
- and
- e) supports pads extending from each of the at least two sides of the pocket defining a third segment between the first and second segments.
A toolholder for use in a metalworking operation, wherein the toolholder comprises:
- a) a body having a first end, wherein the body extends along a longitudinal axis;
- b) a pocket extending into the first end, wherein the pocket has the general shape and depth of an on-edge cutting insert intended to be held therein and, wherein the pocket has a pocket floor and at least a first interior wall and a second interior wall extending upwardly from the pocket floor;
- c) wherein the first and second interior walls intersect to form a corner region and, wherein the corner region has a dual relief area extending into the depth of the pocket to provide relief for a corner of a cutting insert mounted therein and having two radially shifted cutting edges;
- d) wherein the dual relief area has a first relief area that extends substantially the entire depth of the insert and a second relief area adjacent to the first relief area that extends to a partial depth of the insert;
- and
- e) further wherein said first and second interior walls also define first and second sides and, wherein the sides define support pads adapted to engage matching mounting surfaces on the cutting insert.
A toolholder assembly for use in a metalworking operation, wherein the assembly comprises:
- a) an on-edge cutting insert with a depth and having first and second opposing segments about a central plane and with a central axis therethrough, wherein each segment has at least three sides and associated corners defining cutting edges and, wherein each segment is radially offset relative to the other,
- b) a body extending along a longitudinal axis and having a first end;
- c) a pocket extending into the first end, wherein the pocket has at least two sides and the general shape and depth of the cutting insert intended to be held therein and, wherein the at least two sides intersect to define a pocket corner;
- d) a primary deep relief area located within the pocket corner and associated with a segment corner of the first segment and, wherein the primary deep relief area extends substantially to the depth of the cutting insert intended to be held within the pocket;
- e) a primary shallow relief area located within the same pocket corner and associated with a segment corner of the second segment and, wherein the second relief area is adapted to accommodate only the segment corner of the second segment and, wherein the second relief area extends only to the depth of the second segment;
- and
- f) supports pads extending from each of the at least two sides of the pocket defining a third segment between the first and second segments.
Dependencies are inferred from the claim text.