Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Locking means
Patent
1984-12-04
1987-02-24
Walton, George L.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Locking means
74813L, 74826, B23B 2932
Patent
active
046448250
ABSTRACT:
An indexing and positioning device comprises: a fixed inner ring; and outer ring disposed coaxially, coplanarly, and revolvably therearound with an annular boundary therebetween; a plurality of positioning recesses formed at equal indexing intervals along and straddling the boundary and comprising respective inner and outer parts respectively formed in the inner and outer rings, all recesses assuming a completely assembled state upon combination of the inner and respective outer parts in a specific indexing register; a plurality of positioning balls one of which is floatably accommodated within each of the positioning recesses; a retainer confining and guiding each of the positioning balls; and a clamp ring operable to press the positioning balls inward into the respective positioning recesses thereby to cause accurate and positive centering and positioning of indexing positions of the inner and outer rings relative to each other.
REFERENCES:
patent: 3088340 (1963-05-01), Shotey
patent: 3091135 (1963-05-01), Thompson
patent: 3177740 (1965-04-01), Firestone et al.
patent: 3242771 (1966-03-01), Maier et al.
patent: 3312510 (1967-04-01), Brehm
patent: 3545317 (1970-12-01), Shultz et al.
patent: 3718055 (1973-02-01), Maier
patent: 3762013 (1973-10-01), Irie
patent: 3797333 (1974-03-01), Maier
Kabushiki Kaisha Yamazaki
Walton George L.
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