METHOD AND DEVICE FOR AUTOMATICALLY FEEDING PARTS HAVING THROUGH-HOLE

摘要

A method of automatically feeding a part (4) having a through-hole to an intended place comprises the steps: disposing a feed rod (6) capable of advancing toward an intended place to which the part (4) is to be fed, said feed rod (6) consisting of a slide rod (16) of larger diameter and a guide rod (17) of smaller diameter, said guide rod (17) retractably projecting beyond the front end of the slide rod (16); provisionally holding the part (4) in a predetermined position on the advance/retraction axis of the feed rod (6); advancing the feed rod (6) to cause the guide rod (17) to pierce through the though-hole (10) in the part (4) so as to feed the part (4) to said intended place; and detecting, when relative displacement of the guide rod (17) with respect to the slide rod (16) occurs during the advance of the feed rod (6), such relative displacement and issuing a signal.