Deburring tool and cutting insert therefor
AssigneeIscar, Ltd.
InventorsGil Hecht, Michael Abramson, Daniel Men
Life of this patent
Estimating the term…
Abstract
A deburring tool having an indexable cutting insert having four cutting edges. The cutting insert has a main body portion and a guide groove. The cutting insert is slidably retained in an insert pocket with the main body portion of the insert located in a generally rectangular slot of the insert pocket and with the guide groove located and engaging a guide member portion of the insert pocket. The cutting insert is moveable between a retracted position and an extended position by means of a spring which biases the cutting insert towards the extended position. The sliding movement of the cutting insert is performed by the sliding of the guide member within the guide groove.
Claims20
An indexable cutting insert, comprising:
- a top surface, a bottom surface and a peripheral surface therebetween;
- and
- two identical opposing cutting portions, each cutting portion comprising two identical cutting edges, each cutting edge being located between a rake surface and a relief surface, the two cutting portions being reflection symmetric with respect to a major median plane (P1) of the cutting insert, the two identical cutting edges of each cutting portion being reflection symmetric with respect to a minor median plane (P2) of the cutting insert;
- the bottom surface comprising two bottom surface sections and a single guide groove therebetween extending inwardly away from the bottom surface sections towards the top surface, the guide groove having a longitudinal axis B directed perpendicular to the major median plane (P1).
A deburring tool comprising:
- a tool body having an insert pocket opening out to a peripheral surface of the tool body via an aperture, the insert pocket comprising a slot and a guide member;
- and
- a cutting insert located at least partially in the slot, the cutting insert being slidable between a retracted position and an extended position by means of a spring which biases the cutting insert towards the extended position;
- wherein:
- the cutting insert comprises:
- a top surface, a bottom surface and a peripheral surface therebetween;
- and
- two identical opposing cutting portions, each cutting portion comprising two identical cutting edges, each cutting edge being located between a rake surface and a relief surface, the two cutting portions being reflection symmetric with respect to a major median plane (P1) of the cutting insert, the two identical cutting edges of each cutting portion being reflection symmetric with respect to a minor median plane (P2) of the cutting insert;
- the bottom surface comprising two bottom surface sections and a single guide groove therebetween extending inwardly away from the bottom surface sections towards the top surface, the guide groove having a longitudinal axis B directed perpendicular to the major median plane (P1);
- the guide member engages the guide groove;
- and
- in the extended position, one of the two cutting portions protrudes from the aperture beyond the peripheral surface of the tool body.
A deburring tool comprising:
- a tool body having an insert pocket opening out to a peripheral surface of the tool body via an aperture, the insert pocket comprising a slot and a guide member;
- and
- a cutting insert located at least partially in the slot and being slidable between a retracted position and an extended position by means of a spring which biases the cutting insert towards the extended position, the cutting insert having at least one cutting portion comprising two identical cutting edges that are reflection symmetric with respect to a minor median plane (P2) of the cutting insert, the cutting insert also having a bottom surface comprising a single guide groove extending along the minor median plane (P2);
- wherein:
- in the extended position, the cutting portion protrudes from the aperture beyond the peripheral surface of the tool body;
- the guide member comprises a pair of guide member support surfaces;
- the groove comprises a pair of abutment surfaces located on either side of the minor median plane (P2);
- and
- the pair of abutment surfaces are in sliding contact with the pair of guide member support surfaces.
Dependencies are inferred from the claim text.