Metal working – Plural diverse manufacturing apparatus including means for... – Forging and bending – cutting or punching
Patent
1990-03-21
1991-07-02
Rosenbaum, Mark
Metal working
Plural diverse manufacturing apparatus including means for...
Forging and bending, cutting or punching
2924354, 295642, 29715, 81463, 173138, 227 61, B23B 1100
Patent
active
050274902
ABSTRACT:
An apparatus for inserting fasteners which are press fit through aligned apertures in side-by-side workpieces. The apparatus includes a frame which is moveable relative to the side-by-side workpieces, the frame including a main frame and a subframe mounted on the main frame and moveable between the first and second positions. The subframe carries tooling in the form of a drill and an upper ram. Also, mounted on the main frame are upper and lower spaced apart clamps which may be selectively moved into contact with upper and lower surfaces of upper and lower workpieces. The upper ram can be moved into contact with a headed fastener to force the shank of the fastener through aligned apertures drilled in the workpieces. A vibrating apparatus is associated with the upper ram and will be operated to hammer the upper ram while it is still being maintained in contact with the fastener after the fastener has been inserted into the workpieces to fully insert the fastener and relieve any stresses which may be present. Subsequently a collar may be swaged about the end of the fastener which projects through the workpieces.
REFERENCES:
patent: 4658913 (1987-04-01), Yantsen et al.
patent: 4864713 (1989-09-01), Roberts et al.
patent: 4908928 (1990-03-01), Mazurik et al.
patent: 4936393 (1990-06-01), Lister
SME Technical Paper AD86-686, Tom D. Stone, 1986, "No Tack Assembling of Wing Span and Spar Assemblies".
SME Technical Paper AD84-842, Robert B. Starnes, 1984, "Two Piece Fasteners and Installation Tooling".
Birke James L.
Roberts Bradley M.
Chin Frances
Gemcor Engineering Corporation
Rosenbaum Mark
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