Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Patent
1987-03-19
1988-07-05
Jones, David
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
7245317, 72 11, 72 21, 72 27, 227112, 29809, B21J 1510
Patent
active
047546433
ABSTRACT:
Apparatus and method for automated and semi-automated installation of blind rivets, comprising mechanical, pneumatic, and electronic subassemblies, with self-diagnostic capabilities. The system includes a rivet transfer arm external to the installation tool, which receives pneumatically fed rivets in a "home" position and transfers the rivets to an "advanced" position of alignment with the tool's nosepiece. A mandrel collection system routes separated mandrels from the tool to a remote receptacle through a channel under vacuum. Various sensors detect rivet placements, mechanism positions, and air pressure conditions, and signals from such sensors together with user inputs are received by a central processing unit (CPU). The CPU diagnoses the state of the installation system, produces command signals for a plurality of solenoid valves to regulate the system pneumatics, and reports status and fault conditions to the operator. The operating software may include self-correction routines, as for example one which recognizes unsuccessful loading of a rivet into the nosepiece and reattempts loading with a new rivet.
REFERENCES:
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patent: 4592136 (1986-06-01), Hirsch
A. E. DiMaio, "Portable and Automated Blind Riveting Systems", undated article.
Thomas E. Endres, "Automatic Installation of Blind Fasteners", undated article.
D'Aquila Anthony
Schwartz Sidney D.
Varian Raymond H.
Viscio Donald
Weeks, Jr. Arthur R.
Jones David
Moore Arthur B.
USM
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