Apparatus for fastening a semi-cylindrical workpiece

Details Apparatus for fastening a semi-cylindrical workpiece Apparatus for fastening a semi-cylindrical workpiece

1997-09-04

1998-07-14

Briggs, William R.

Metal working

Plural diverse manufacturing apparatus including means for...

Forging and bending, cutting or punching

227 51, B23P 2304, B21J 1500

Patent

active

057785058

ABSTRACT:
Machining apparatus comprising a major C-frame for carrying an upper tooling head and a rotatable minor C-frame for carrying a lower tooling head cantileverly supported away from a body portion of the minor C-frame to provide a throat for receiving a workpiece edge portion while another workpiece portion is positioned between the heads for machining, the minor C-frame being rotated to provide clearance for the workpiece. As a result, a substantially semi-cylindrical workpiece may be machined over its surface without refixturing thereof.

REFERENCES:
patent: 26134 (1859-11-01), Rodgers
patent: 4864713 (1989-09-01), Roberts et al.
patent: 4897000 (1990-01-01), Suzuki
patent: 4908928 (1990-03-01), Mazurik et al.
patent: 5060362 (1991-10-01), Birke et al.
patent: 5060375 (1991-10-01), Demichel
patent: 5329691 (1994-07-01), Roberts et al.
patent: 5367435 (1994-11-01), Matsuda
patent: 5410904 (1995-05-01), Hirata et al.

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