Verstellbare Vorrichtung zum Zuführen von Nieten an einem Nietwerkzeug

摘要

A rivet delivery device (60) is provided for transferring a rivet from a rivet passage (30) to a nose piece (124) of a pulling head (43) and jaw case mechanism (44). The rivet delivery device (60) is air driven to extend forwardly of the rivet setting tool (12) and rotates to present a rivet (R) in front of the jaws and then transfers the rivet (R) into the jaws. The angular rotation and stroke length of the rivet delivery device (60) can be easily adjusted. A double-acting piston (76) is driven in both directions by positive air pressure to extend and rotate the delivery device (60) in front of the nose piece (124) and returning the rivet delivery device (60) after rivet transfer. The use of a double-acting piston (76) greatly enhances the speed at which the rivet delivery device (60) can operate.