Milling tool
AssigneeSandvik Intellectual Property AB
InventorSture SJOO
Life of this patent
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AssigneeSandvik Intellectual Property AB
InventorSture SJOO
Estimating the term…
The invention relates to a milling tool for gear milling. The tool body is equipped with tangentially mounted milling inserts having four cutting edges and two holes, only one of which is utilized for a fixing screw in two of totally four index positions. By locating a screw hole in the seat of the milling insert at a distance from the radial support surface of the seat that is greater than the distance between an individual hole and a distal end of the milling insert, a clamping force is provided by means of the inherent elasticity of the fixing screw. In such a way, the milling insert is pressed against the radial support surface. By means of a transversal eccentricity, the milling insert is also pressed against a tangential support surface in the seat. By means of this construction, the two holes in differently long milling inserts can be formed with equally large distances from distal ends. Thereby, one and the same tool body can be equipped with differently long milling inserts.
A milling tool comprising:
An insert kit for milling tools comprising a plurality of milling inserts, each of the plutality of milling inserts having an elongate basic shape and two opposite and mutually parallel chip surfaces, two opposite and mutually parallel clearance surfaces, a pair of opposite ends, and two holes, the holes extending continuously between the clearance surfaces, each one of the two chip surfaces transforming into connecting clearance surfaces via a pair of alternately usable cutting edges having an identical shape, wherein the plurality of milling inserts form two sets of differently long, although equally wide milling inserts, each longer milling insert having the two holes located at a mutual distance that is smaller than the mutual distance between the two holes in a shorter milling insert, a second distance between a respective hole and the distal end thereof being equally large for a longer milling insert as well as for a shorter milling insert.
Dependencies are inferred from the claim text.