Cutting insert and cutting tool
AssigneeMitsubishi Materials Corporation
InventorYasunori Murakami
Life of this patent
Estimating the term…
Abstract
A cutting insert (2) having a tip bit. (5) and a tabular tip body (4) supporting the tip. The cutting insert (2) is used by being mounted to the body (1) of a cutting tool. Wherein, the tip body (4) has a plurality of elastic deformation sections (8) separated by a slit (6) which extends on a transverse line from a corner to an area near another corner. The elastic deformation sections are moved closer together and elastically deformed within a plane which includes the tip body 4 when being mounted to the tool body 1. And, the opposing faces of the elastic deformation sections (8) have engaging sections (10) for engaging the tip bit (5).
Claims20
A cutting insert for use by being mounted on a body of a cutting tool, comprising:
- a tip bit having opposed recesses in an outer periphery thereof, said opposed recesses extending through said tip bit from a top surface of said tip bit to a bottom surface of said tip bit;
- a tabular tip body supporting said tip bit, wherein said tip body has a plurality of elastic deformation sections, which are separated by a slit, said slit extending transversely from a first outer corner of said tip body to an area near a second opposing outer corner of said tip body, and said elastic deformation sections being movable closer together and being elastically deformed within a plane which includes said tip body mounted on said body of said cutting tool;
- wherein opposing faces of said elastic deformation sections have engaging sections for engaging said opposed recesses of said tip bit;
- and
- wherein said tip bit supported on said tip body forms an essentially parallelogram-shaped cutting insert for mounting on said body of said cutting tool.
A cutting tool, comprising:
- (a) a cutting insert including:
- a tip bit having opposed recesses in an outer periphery thereof, said opposed recesses extending through said tip bit from a top surface of said tip bit to a bottom surface of said tip bit;
- a tabular tip body supporting said tip bit, wherein said tip body has a plurality of elastic deformation sections which are separated by a slit, said slit extending transversely from a first outer corner of said tip body to an area near a second opposed outer corner of said tip body, and said elastic deformation sections being movable closer together and being elastically deformed within a plane which includes said tip body by being mounted to said tool body;
- wherein opposing faces of said elastic deformation sections have engaging sections for engaging said opposed recesses of said tip bit;
- and
- wherein said tip bit supported on said tip body forms an essentially parallelogram-shaped cutting insert for mounting on said body of said cutting tool;
- and
- (b) a body of said cutting tool, wherein said cutting insert is mounted on a front end of said body of said cutting tool, wherein said body of said cutting tool includes bearing faces which contact side faces of said tip body such that said elastic deformation sections are elastically deformed and are moved closer together, and wherein said body of said cutting tool also includes clamping means for pressing said tip body against said bearing faces.
Dependencies are inferred from the claim text.