Metal working – Plural diverse manufacturing apparatus including means for... – Including machining means
Patent
1987-08-12
1988-05-24
Bilinsky, Z. R.
Metal working
Plural diverse manufacturing apparatus including means for...
Including machining means
29 26A, 408239A, 409233, B23C 526, B23Q 3157
Patent
active
047456736
ABSTRACT:
A spindle head unit having a bell crank lever (24) mounted pivotally on a spindle head (10) of a machining center to depress a drawbar (18) inserted through a spindle (14) mounted on the spindle head (10). One of arms of the bell crank lever (24) is located so as to be capable of being engaged with a guide cam (28) and a depressing end (24a) in the shape of a spherical protrusion which is not connected mechanically to an upper end (18a) of the drawbar (18) is formed in a free end of the other arm of the bell crank lever (24). The bell crank lever (24) is urged continuously by a spring means (32) so that the former arm is urged toward the guide cam (28).
REFERENCES:
patent: 2441046 (1948-05-01), Turrettini
patent: 3680437 (1972-08-01), Cravens, Jr.
patent: 3868886 (1975-03-01), Bondie
patent: 3875848 (1975-04-01), Powell
patent: 3898971 (1975-08-01), De Caussin
patent: 4135848 (1970-01-01), Hughes et al.
patent: 4172683 (1979-10-01), Shimajiri et al.
patent: 4290720 (1981-09-01), Ferreira
Akiyama Yoshihisa
Araki Hiroshi
Aso Toshiyuki
Bilinsky Z. R.
Fanuc Ltd.
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