AUTOMATIC STAMPING DEVICE Russian patent published in 1998 - IPC

FIELD: metal working; stamping and center-pushing of articles. SUBSTANCE: automatic stamping device includes housing where striker and center-punch with tail which are spring-loaded in axial direction are located. Bush located between striker and center-punch is mounted for reciprocating along of housing; it is spring-loaded relative to center-punch and provided with through slots which are used for receiving the balls whose diameter is more than thickness of bush wall. Tailpiece of center-punch is provided with head having two chamfers. Inner surface of housing has two circular bores with taper surfaces on adjacent sides. Depth of bores together with thickness of bush wall is equal to diameter of balls. Device may be provided with detachable end-pieces having working surfaces of different configuration. EFFECT: enhanced reliability. 2 cl, 3 dwg