Cutting by use of rotating axially moving tool – Tool-support with means to move tool relative to tool-support – To move radially
Patent
1998-10-19
1999-07-27
Pitts, Andrea L.
Cutting by use of rotating axially moving tool
Tool-support with means to move tool relative to tool-support
To move radially
408187, B23B 5100
Patent
active
059279117
ABSTRACT:
A spotfacing and counterboring tool has therethrough an axial bore communicating at one end with a recess containing a pivotal cutter blade connected to an actuator which is reciprocable on the tool between a first limited position in which it moves the cutter blade to an inoperative position within the recess, and to a second limited position in which it moves the cutter blade to an operative position in which the blade projects out of the recess. An expansion chamber in the tool communicates at one end with the axial bore in the tool, and at its opposite end is closed by the reciprocable actuator, which normally is urged resiliently into its first position, when the tool is not being used, and in which position it places the chamber in its contracted mode. The end of the tool remote from its end containing the cutter blade is disposed to be connected to a machine tool for rotation thereby selectively in opposite directions, and is disposed also to have the adjacent end of its axial bore connected to a supply of coolant fluid under pressure, which flows into the axial bore in the tool, and into the expansion chamber to force the actuator to its second limit position, thereby moving the cutter blade to its operative position, and also causing a portion of the fluid to flow into the recess and cool the now-active cutter blade.
REFERENCES:
patent: 3019712 (1962-02-01), Winberry, Jr.
patent: 3806271 (1974-04-01), Ishiguro et al.
patent: 4411324 (1983-10-01), Liebig
patent: 4729699 (1988-03-01), Frazzoli
patent: 5209145 (1993-05-01), Baudermann
patent: 5829925 (1998-11-01), Nordstrom
patent: 5839860 (1998-11-01), Steiner
patent: 5848860 (1998-12-01), Steiner
Bhargava Adesh
Pitts Andrea L.
R. Steiner Technologies, Inc.
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