Self-centering compact floating reamer holder
AssigneeIscar, Ltd.
InventorsEvgeny Samoilov, Michael Altman
Life of this patent
Estimating the term…
Abstract
A compact oldham-type floating reamer holder with holder and reamer portions which transfer torque therebetween via a floating member. The floating reamer holder includes an elastic element which axially biases the holder and reamer portions. In an operative position, the floating reamer holder is configured to automatically enable angular misalignment, parallel misalignment and axial translation between the holder and reamer portion axes. In a non-operative position, the reamer portion axis is co-aligned with the holder portion axis. And the elastic element at least partially overlaps the reamer portion.
Claims21
A compact oldham-type floating reamer holder (10) having forward (FWD) and rear (RWD) directions and comprising:
- a holder portion (12) having a central holder portion axis (HP);
- a reamer portion (14) having a reamer portion axis (RP) and axially opposite reamer portion front and rear surfaces (96, 98), the reamer portion (14) being configured such that all parts of the reamer portion always rotate together and further being configured to retain a reamer (16);
- a floating member (22) configured to transfer a torque directly from the holder portion (12) to the reamer portion (14);
- and
- an annular elastic element (30) at least partially overlapping the reamer portion (14) in the axial direction and biasing the reamer portion (14) in the axially forward direction (FWD),
- wherein
- in an operative position, the floating reamer holder (10) is configured to accommodate an angular misalignment, a parallel misalignment and an axial translation between the holder and reamer portion axes (HP, RP);
- and
- in a non-operative position, the reamer portion axis (RP) is accurately co-aligned with the holder portion axis (HP).
A compact self-centering floating reamer holder (10) having forward (FWD) and rear (RWD) directions and comprising:
- an elongated holder portion (12) having a central holder portion axis (HP);
- an elongated reamer portion (14) located forward of the holder portion and having a reamer portion axis (RP), the reamer portion configured to retain a reamer and comprising:
- axially opposite reamer portion front and rear surfaces (96, 98);
- and
- an external reamer portion centering surface (101) which tapers towards the reamer portion front surface (96), in the forward direction (FWD);
- wherein
- the reamer portion is configured such that all parts of the reamer portion always rotate together,
- a housing sleeve (24) rigidly and releasably connected to the holder portion (12), the housing sleeve having a tapering sleeve first centering surface (42);
- an annular elastic element (30) axially forcing the reamer portion centering surface (101) against the tapering sleeve first centering surface (42), in the forward direction (FWD);
- and
- a floating member (22) located within the housing sleeve and configured to transfer a torque directly from the holder portion (12) to the reamer portion (14).
Dependencies are inferred from the claim text.