AUTOMATIC MACHINE TOOL FOR SINGLE-SIDE DRILLING Russian patent published in 2004 - IPC

FIELD: machine engineering, apparatuses for drilling articles of soft non-metallic materials, semiprecious stones.

SUBSTANCE: machine tool includes housing; spindle unit; motor for driving mechanisms of machine tool; reduction gear; cam; feed unit; slide valve unit; feeder; pan for ready articles. In order to enhance efficiency, feeding unit is provided with body relative to which spring-loaded support may move. Spring-loaded rod is arranged inside said spring-loaded support. Diameter of rod in zone of touching spring exceeds diameter of support opening in which said spring is placed. Slide valve unit is mounted with possibility of rotation around its axis and engaging with pin of cam. It has spring-loaded legs that may move together with blanks.

EFFECT: enhanced efficiency.

2 dwg