Cemented carbide cutting insert having integral structure for securing the insert in a holder
AssigneeSeco Tools AB
InventorJonas Jordberg
Life of this patent
Estimating the term…
Abstract
A cutting insert intended for chip removing machining includes a body forming at least one cutting edge, a securing structure such as a helical thread disposed at one side of the body, and a key grip such as a profiled recess disposed at an opposite side. The insert is formed of injection molded cemented carbide such that the body, the securing structure, and the key grip are all integral with one another. The insert is secured in a holder by rotating the insert using a key which engages the key grip, whereupon the securing structure engages a complementary securing structure on the holder to pull the insert body against the holder.
Claims23
A cutting insert for chip removing machining comprising a body having an outer peripheral edge defining at least one cutting edge, securing means disposed on a first side of the body and adapted to secure the body against a holder in response to rotation of the insert about an axis of the securing means, and a key grip disposed on a second side of the body situated axially opposite the first side;
- the key grip configured to be rotated about the axis by a key;
- the body, the securing means, and the key grip being integrally formed with one another of injection molded cemented carbide, wherein the key grip comprises a profiled surface spaced radially inwardly of, and surrounded by, the outer peripheral edge.
A tool for chip removing machining comprising a holder and at least one cutting insert mounted on the holder;
- the insert comprising a body having an outer peripheral edge defining at least one cutting edge, securing means disposed on a first side of the body and adapted to secure the body against a holder in response to rotation of the insert about an axis of the securing means, and a key grip disposed on a second side of the body situated axially opposite the first side;
- the key grip configured to be rotated about the axis by a key;
- the body, the securing means, and the key grip are integrally formed with one another of injection molded cemented carbide, wherein the key grip comprises a profiled surface spaced radially inwardly of, and surrounded by, the outer peripheral edge.
A method of assembling a chip removing machining tool comprising the steps of:
- A) providing a cutting insert having a body with an outer peripheral edge defining at least one cutting edge, first securing means disposed on one side of the body, and a key grip disposed on a second side of the body situated opposite the first side, wherein the key grip comprises a profiled surface spaced radially inwardly of and surrounded by the outer peripheral edge, the cutting insert formed of injection molded cemented carbide whereby the body, the securing means, and the key grip are integrally formed with one another;
- B) positioning the cutting insert on a holder such that the securing means engages second securing means disposed on the holder;
- C) engaging a key with the key grip;
- and
- D) rotating the cutting insert, using the key, in a direction so that the second securing means pulls the first securing means toward the holder to cause the body to abut the holder.
Dependencies are inferred from the claim text.