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US 7,296,953 B2Granted
Deep hole drill
AssigneeJoerg GUEHRING
InventorLothar Kuenzel
Life of this patent
Estimating the term…
Abstract
A deep hole drill comprising a cutter carrier, a replaceable cutting insert and at least one replaceable guide strip. The cutter carrier is embodied in such a way that it can be used for a predetermined nominal diameter range. In order to adjust the deep hole drill to the various desired nominal diameters in a quicker and more precise manner, a separate kit consisting of a cutting insert and at least one guide strip is associated with each nominal diameter. Fixed stops are provided on the cutter carrier for said kit.
Claims12
A deep hole drill comprising:
- a cutter carrier;
- at least one replaceable cutting insert attached to the cutter carrier;
- and
- at least one replaceable guide strip attached to the cutter carrier,
- wherein the cutter carrier comprises a two-sided stop comprising two stop surfaces defining a cutter insert seat, the two stop surfaces spanning a first angle smaller than 90°, the cutter carrier further comprises at least one fixed stop for the guide strip, and
- wherein two counter-stop surfaces of the cutter insert facing the two stop surfaces, respectively, span a second angle, the second angle being larger than the first angle.
3 more elements
A deep hole drill set comprising:
- a cutter carrier comprising a two-sided stop comprising two stop surfaces defining a cutter insert seat, the two stop surfaces spanning a first angle smaller than 90°, the cutter carrier further comprising at least one fixed stop defining a guide strip seat;
- and
- a plurality of kits, each kit comprising a cutting insert and at least one guide strip for equipping the cutter carrier according to a nominal diameter, each kit being associated with a certain nominal diameter in a nominal diameter range (ΔND), each cutting insert having two counter-stop surfaces for facing the stop surfaces when fixed in position at the cutter insert seat, the two stop surfaces spanning a second angle being larger than the first angle and each guide strip having counter-stop surfaces for facing the fixed stop when fixed in position at the guide strip seat.
Dependencies are inferred from the claim text.