Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Patent
1988-02-22
1989-03-21
Weidenfeld, Gil
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Having tool-opposing, work-engaging surface
29568, 408 67, 408 95, B23B 3904
Patent
active
048138258
ABSTRACT:
A drilling spindle having a pressure foot is disclosed for handling drilling tools having relatively large diameter shank regions and relatively small diameter drilling bit portions regions. The pressure foot assembly includes a shutter plate which contacts and clamps the workpiece during drilling operations. The shutter plate translates along an axis transverse to the rotor axis to align either a small aperture or a large aperture with the rotor axis. The small aperture is sized to receive the drilling tool region of the drill, and permits the drilling region to be extended therethrough while providing good clamping of the workpiece during drilling. The large aperture is sized to receive the shank region of the tool, and permits the tool to be inserted or withdrawn from the spindle during tool changing operations.
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patent: 4520551 (1985-06-01), Imhof
patent: 4596067 (1986-06-01), Raiteri
patent: 4596500 (1986-06-01), Raiteri
patent: 4658494 (1987-04-01), Ohtani et al.
patent: 4761876 (1988-08-01), Kosmowski
Bishop Steven C.
Dynamotion Corporation
Weidenfeld Gil
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