Deburring tool and cutting insert therefor
AssigneeIscar, Ltd.
InventorGil Hecht
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 protruding guide member. The cutting insert is slidably retained in an insert pocket with the main body portion of the insert located in a generally rectangular slot portion of the insert pocket and with the guide member located and engaging a guide groove 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.
Claims32
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 of the cutting insert, the two identical cutting edges of each cutting portion being reflection symmetric with respect to a minor median plane of the cutting insert;
- the bottom surface comprising two bottom surface sections and a single guide member therebetween, the guide member comprising at least one ridge protruding beyond the bottom surface sections in a direction away from the top surface, the guide member having a longitudinal axis directed perpendicular to the major median plane.
An indexable cutting insert, comprising:
- a top surface, a bottom surface and a peripheral surface therebetween;
- the peripheral surface comprising two opposing end surfaces and two opposing side surfaces;
- the bottom surface comprising two bottom surface sections and a single, centrally located guide member therebetween, the guide member protruding from the bottom surface sections in a direction away from the top surface, the guide member having a longitudinal axis that intersects the two opposing end surfaces, in a bottom view of the cutting insert;
- a first cutting portion comprising two identical cutting edges, one on either side of a first of said end surfaces;
- and
- a second cutting portion comprising two identical cutting edges, one on either side of a second of said end surfaces.
A deburring tool comprising:
- a tool body having at least one insert pocket opening out to a peripheral surface of the tool body via an aperture, the insert pocket comprising a slot and a guide groove;
- and
- an indexable cutting insert, comprising:
- a top surface, a bottom surface and a peripheral surface therebetween;
- the peripheral surface of the cutting insert comprising two opposing end surfaces and two opposing side surfaces;
- the bottom surface comprising two bottom surface sections and a single, centrally located guide member therebetween, the guide member protruding from the bottom surface sections in a direction away from the top surface, the guide member having a longitudinal axis that intersects the two opposing end surfaces, in a bottom view of the cutting insert;
- a first cutting portion comprising two identical cutting edges, one on either side of a first of said end surfaces;
- and
- a second cutting portion comprising two identical cutting edges, one on either side of a second of said end surfaces;
- wherein:
- the cutting insert is located at least partially in the slot with the guide member engaging the guide groove, 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 in the extended position one of said cutting portions protrudes from the aperture beyond the peripheral surface of the tool body.
Dependencies are inferred from the claim text.