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US 5,667,343 AGranted
Face milling cutter with recesses for adjustable insert holders
AssigneeSandvik AB
InventorsIngemar Hessman, .ANG.ke Almersand
Life of this patent
Estimating the term…
Abstract
A milling cutter tool for chip-breaking machining comprises a rotatable milling cutter body (1) and a plurality of cutting insert-carrying cassettes (4) which are fastened in the cutter body by screws (6,7). The screw holes of the cassette are somewhat elongate in order to enable an axial fine-adjustment of the cutting edges. This fine-adjustment is accomplished by turning an eccenter tap (8), for instance by sticking a hexagonal key through a hole in the cassette, which hole leads to the head of the eccenter tap.
Claims9
Milling cutter tool for chip-breaking machining comprising:
- a milling cutter body which is rotatable in a direction of rotation and includes a plurality of grooves at a periphery of the milling cutter body;
- a plurality of cutting insert-carrying cassettes, each cassette received in one of the plurality of grooves at the periphery of the milling cutter body and being fastened in the groove by two fastening screws, and each of the two fastening screws received in a through-hole in the cassette, which through-holes are elongate in a longitudinal direction of the cassette in order to make possible a certain axial displacement of the cassette in the groove;
- a recess arranged between the two fastening screws on a side of the cassette that faces towards an axis of rotation of the milling cutter tool, which recess is substantially perpendicular to the axis of rotation of the milling cutter tool;
- an eccentric tap is arranged with a head in said recess;
- a further through-hole is arranged in the cassette, the further through-hole opening into said recess, facing the head of the eccentric tap, and each fastening screw is radially angled so that the cassette is pressed against a radially inner, trailing corner of the cassette groove in a direction of rotation.
2 more elements
A milling cutter tool comprising:
- a milling cutter body having an axis of rotation and a plurality of grooves extending substantially parallel to the axis of rotation;
- a plurality of cutting insert carrying cassettes accommodated in the plurality of grooves in the milling cutter body each cassette having a recess;
- a plurality of fastening screws for fastening the cassettes in the grooves in the milling cutter body;
- a plurality of eccentric taps each having an eccentrically mounted head positioned in the recess in one of the cassettes so that rotation of the tap adjusts the position of the cassette along a longitudinal axis of the cassette which is substantially parallel to the axis of rotation of the cutter body;
- wherein each of the cassettes includes a bore extending from an outer surface of the cassette to the recess, the bore having a diameter smaller than a diameter of the head of the eccentric tap.
2 more elements
Dependencies are inferred from the claim text.