Iscar, Ltd.

Danny Chen

Gil Hecht

Amir Satran

Alexander Orlov

Alexander Zibenberg

A cutting tool () includes a cutting portion () and a clamping mechanism () configured to be brought between an unclamped position in which a cutting insert () is removable from the cutting portion (), and a clamped position in which the cutting insert () is clamped to the cutting portion (). The clamping mechanism () includes a clamp () and a cam shaft (). The clamp () is formed with a growth pattern region (C) having a varying diameter. The cam is formed with a growth pattern region (C) having a varying diameter. The growth pattern regions (CC) are configured for engaging each other to transform rotary motion of the cam shaft () into linear motion of the clamp () to thereby move the clamping mechanism () into the clamped position.

Cutting tool and clamping mechanism for holding a cutting insert thereto

Cutting insert

An indexable double-negative cutting insert includes an index axis A, two opposing end surfaces, a peripheral side surface which extends therebetween, and opposing side cutting edges formed between the end surfaces and the peripheral side surface. A median plane P is located midway between the end surfaces, passes through the peripheral side surface and is perpendicular to the index axis. The peripheral side surface includes at least one protrusion which extends in an outward direction relative to the index axis, in a plan view of either end surface. The protrusion includes two side abutment surfaces which converge in the outward direction towards the median plane P. In each cross-section perpendicular to the median plane, which cross-section passes through both opposing side cutting edges and also the at least one protrusion, no portion of the peripheral surface is inward of an imaginary line connecting the opposing side cutting edges.

Indexable double-negative cutting insert having protruding side abutment surfaces and cutting tool

A double-sided indexable threading cutting insert includes two opposite end surfaces and a common periphery extending therebetween. The periphery includes exactly five identical peripheral sections and exactly five identical peripheral segments. Each peripheral segment extends between two adjacent peripheral sections and each peripheral section includes two adjacent abutment sections located between two rake faces. In a plan view of each end surface, each abutment section lies on a portion of an imaginary five-pointed star which includes five outer vertices alternating with five inner vertices. The cutting insert includes five cutting portions, each cutting portion is associated with a respective outer vertex, each cutting portion extends outwardly, and each cutting portion includes two opposite cutting tips.

Threading cutting tool and double-sided indexable threading cutting insert therefor

A fluted drill has a drill body with a fluted drill cutting head removably secured thereto. The cutting head has two drilling portions facing axially opposite directions. In axial view, the cutting head has at least four through openings. Each drilling portion includes a plurality of head flute portions and a plurality of cutting head coupling portions.

Fluted drill and fluted drill cutting head therefor

A tangential cutting insert has two opposing side surfaces and a peripheral surface extending between the side surfaces. The peripheral surface has four identical end surfaces. The intersections of the end and side surfaces include major cutting edges. The intersection of end surfaces and adjacent end surfaces include minor cutting edges. Each of the major and minor cutting edges has a rake surface extending in an inward direction of the cutting insert. In a side view of the cutting insert the major cutting edges are concave.

Tangential cutting insert and milling cutter

A cutting tool has a tool body provided with at least one insert pocket in which a cutting insert is retained. A device for adjusting a position of the cutting insert within the insert pocket is also provided. A cavity adjacent the insert pocket accommodates an adjustment wedge having a forward surface in sliding contact with a minor side surface of the cutting insert and an adjustment screw threadingly engaged with a female threaded section of the adjustment wedge. The adjustment screw is constrained to remain in its position in the cavity, although rotation of the adjustment screw about its axis results in a sliding motion of the adjustment wedge relative to the cavity and a sliding motion of the forward surface relative to the minor side surface, which translates to displacement of the cutting insert in a direction parallel to a base surface of the insert pocket.

Cutting tool having an adjustment mechanism

A clamping device for removably securing a cutting insert in a tool holder used in turning and milling operations, where the clamping device comprises a clamping lever and an actuating member. The clamping lever includes a first and second limb extending from a central elbow, the first limb having a clamping end portion with two independently resilient clamping fingers separated by a clamping slot and the second limb being operatively connected to the actuating member. Each of the independently resilient clamping fingers has a resilience axis of rotation and an upper clamping zone in clamping contact with the cutting insert, where the resilience axes of rotation are generally parallel to the slot width of the clamping slot.

Clamping device having independently resilient clamping fingers for clamping a cutting insert in a tool holder

A cutting tool includes at least one cutting portion, having an insert pocket, releasably retaining a single-sided cutting insert therein. The cutting portion has a tangential screwing element to clamp the cutting insert in the insert pocket. The screwing element, which comprises a screw, allows releasing and clamping of the cutting insert without having to completely remove the screwing element from the insert pocket. The cutting insert has a top surface, a bottom surface and a peripheral side surface; a recess is formed in the bottom surface. The screwing element is inserted into the recess via the bottom surface. Upon fastening of the screw, a protruding portion of the screwing element clamps the cutting insert in its insert pocket. The cutting insert and protruding portion may have respective geometries allowing them to abut one another at at least two distinct abutment sub-regions.

Cutting tool and cutting insert therefor

A drill in which a cutting head is releasably mounted on a tool shank. The cutting head is axially supported by the tool shank at four spaced apart axial support regions on shank support surfaces.

Drill with releasably mounted cutting head

A shank of a milling cutter can be somewhat elastic. As a result, during plunging down into a workpiece the milling cutter will not plunge in a true axially downward direction and will form a slanted wall in the workpiece. A milling cutting insert is provided which is capable of 'straightening out' the slanted wall. The cutting insert has a rear cutting edge which removes material when the milling cutter is moved axially upwardly.

Growing community of inventors

Nahariya, Israel

Danny Chen