Cutting by use of rotating axially moving tool – Machine including plural tools – Plural – simultaneously operational tools
Patent
1995-08-25
1997-10-14
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Machine including plural tools
Plural, simultaneously operational tools
408 53, B23B 4704
Patent
active
056764987
ABSTRACT:
A multiple spindle drilling apparatus (10) having an eccentric drive link (11), and a primary drive mechanism (12) coupled to the drive link (11) in an eccentric off-set manner. This eccentric off-set causes eccentric circular motion of the drive link (11) about a predetermined radius (R). A frame member (15) is included, as well as a plurality of in-line spindle units (16) rotatably mounted to the frame member (15) for rotation about corresponding spindle axis (17) thereof. An off-set coupling (21) is rotatably mounted between the drive link (11) and respective crank members (20) mounted to corresponding spindle drive shafts (22) to drive the spindle about the spindle axis (17). The coupling (21) is eccentrically off-set from the spindle axis by a radial distance substantially equivalent to the predetermined radius, and further in-phase with the eccentric off-set of the drive link (11).
REFERENCES:
patent: 1326863 (1919-12-01), Heinkel
patent: 3687564 (1972-08-01), Cupler, II
patent: 3813951 (1974-06-01), Zagar
patent: 4260301 (1981-04-01), Reiman
Castle Tool Machinery Incorporated
Howell Daniel W.
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