Metal working – Method of mechanical manufacture – Work holding
Patent
1991-09-11
1992-10-20
Bilinsky, Z. R.
Metal working
Method of mechanical manufacture
Work holding
82 111, 279154, B23B 3110
Patent
active
051558980
ABSTRACT:
Soft jaws in a powered rotary chuck of a lathe are fixedly secured in position, during shaping of the jaws to fit a piece of work, by an annular boring fixture. The fixture is located concentric with the center of rotation of the chuck. The fixture has three sets of multiple spaced threaded openings. Each set is oriented in a like spiral relative to the center of rotation. Three bolts with threaded shanks are engaged in three of the openings. The bolts have heads fitting in counterbores in the jaws. The jaws are tightened on the heads of the bolts so that the jaws can then be shaped to the pertinent dimensions of the piece of work, then the fixture can be removed, then the piece of work can be put in the jaws, and then operations can be performed on the piece of work as it is being rotated by the chuck. Bolts of different diameter heads can be used to help orient the bolts to the locations of the counterbores.
REFERENCES:
patent: 3945654 (1976-03-01), McMullen
patent: 4041612 (1977-08-01), Skubic
patent: 4223898 (1980-09-01), Righi
patent: 4556228 (1985-12-01), Ferraro
patent: 4561663 (1985-12-01), Ferraro
patent: 4640518 (1987-02-01), Ferraro
patent: 4706973 (1987-11-01), Covarrubias
patent: 4725065 (1988-02-01), Hiestand
patent: 4928981 (1990-05-01), Brown
Advertising Brochure "Top Jaw Forming Device", and Huron Forming Device distributed about Jan. 1990.
Bilinsky Z. R.
Bowen Duane C.
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