Toolholder with insert clamp and method for the same
AssigneeKennametal Inc.
InventorsJohn J. Bellinger, Nathan L. Goldblatt, Rachel Suling Lin, James David Rene Raskob
Life of this patent
Estimating the term…
Abstract
A toolholder has an insert clamp in the form of a lever that urges the top of a cutting insert into the pocket of the toolholder. The lever may be spring biased against the insert and may also be dynamically activated by rotation of the toolholder. Additionally, the lever may be on the form of a cam. A method is described of securing a cutting insert within the pocket using the lever.
Claims21
A toolholder comprising:
- a) a body having a pocket therein for receiving a cutting insert and
- b) a lever pivotally mounted about a pivot on the body wherein the lever is capable of rotation only about the fulcrum;
- and adapted to hold the cutting insert within the pocket.
A rotatable toolholder for holding a cutting insert having a front face, a back face and a side wall that define a cutting edge at an intersection of the front face and the side wall, wherein the toolholder holds the cutting insert such that the cutting edge of the cutting insert protrudes from the toolholder comprising:
- a) a body having at least one radially extending pocket to accept a cutting insert and
- b) a lever pivotally mounted to the body through a pivot, wherein the lever is adapted to hold the cutting insert within the pocket and is capable of rotation only about the fulcrum.
A method for securing a cutting insert into the pocket of a toolholder, wherein the pocket has a floor and one or more walls and the cutting insert has a top and bottom surface, comprising the steps of:
- a) positioning the cutting insert within the pocket of the toolholder such that the bottom surface of the cutting insert is against the floor and one or more walls of the pocket;
- and
- b) rotating a lever pivotally mounted to the toolholder body wherein the lever is capable of rotation only about the fulcrum to a first position about a pivot fulcrum against the top surface of the cutting insert to urge the cutting insert against the floor and one or more walls of the pocket and thereby secure the cutting insert within the pocket, wherein the lever is capable of rotation only about the fulcrum and wherein the lever has a first end adjacent to the pocket for contacting the cutting insert and a second end opposite thereto, and wherein the pivot fulcrum is substantially closer to the first end than to the second end.
Dependencies are inferred from the claim text.