Cutting by use of rotating axially moving tool – Tool-support with means to move tool relative to tool-support – To move radially
Patent
1991-08-01
1993-06-29
Bishop, Steven C.
Cutting by use of rotating axially moving tool
Tool-support with means to move tool relative to tool-support
To move radially
82 12, 408168, B23B 2906
Patent
active
052228460
ABSTRACT:
An ultra-precision sub-micron boring tool and pre-setting system for finishing through bores or blind bores is disclosed. The system includes a cylindrical cartridge having an internal hollow portion, a first through bore located in the hollow portion, and a toothed segment lodged in the first through bore. The toothed segment and a micrometric screw, which passes through an axial bore in the toothed segment, are arranged on a common geometric axis. A bushing having an internal thread is located in the interior of the axial bore so that the micrometric screw engages with the internal thread. The system also includes a hollow stud which lodges and retains the bushing, a set of rings which carry and envelope the micrometric screw so that the micrometric screw is supported by the set of rings in relation to the cylindrical cartridge, a locknut, a graduated dial attached to an end of the micrometric screw through the locknut, and a second through bore located in the cylindrical cartridge. The second through bore is arranged substantially in a right angle plane which may be inclined in relation to the first through bore. A tool tip is located on a tool shank lodged in the second through bore. Further, the system has a backlash suppression system located in the second through bore and between the tool shank and the toothed segment in the first through bore.
REFERENCES:
patent: 3730636 (1973-05-01), Mizoguchi
patent: 4648757 (1987-03-01), Plummer
patent: 4793748 (1988-12-01), Santi
Bishop Steven C.
Industrias Romi S.A.
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