EP 0914880 A1 19990512 - Punch assembly
Title (en)
Punch assembly
Title (de)
Stanzwerkzeug
Title (fr)
Dispostif de poinçonnage
Publication
Application
Priority
EP 97830564 A 19971103
Abstract (en)
A punch assembly (1) wherein a toolholder body (5) is fitted in axially-movable manner inside a cylindrical tubular body (2), and is fitted integrally at one end (5a) with a punch (6) engaging in sliding manner a through hole formed in a blankholder disk (3) fitted integrally to one end of the cylindrical tubular body (2); an elastic element (12) being interposed between the cylindrical tubular body (2) and the toolholder body (5) to keep the toolholder body in a rest position wherein the punch (6) is withdrawn inside the cylindrical tubular body; the toolholder body (5) being defined by two elements (7, 9) screwed to each other to permit adjustment of the total axial length of the toolholder body (5), so that, when the toolholder body (5) is in the rest position, the cutting end (6a) of the punch (6) is positioned a given distance (D) from the through hole in the blankholder disk (3). <IMAGE>
IPC 1-7
IPC 8 full level
B21D 45/00 (2006.01)
CPC (source: EP)
B21D 45/006 (2013.01)
Citation (search report)
- [X] WO 9407663 A1 19940414 - WILSON TOOL INT [US]
- [X] DE 19505754 C1 19960502 - MATE PUNCH AND DIE GMBH [DE]
- [A] EP 0622135 A1 19941102 - AMADA METRECS CO [JP]
- [A] GB 2038690 A 19800730 - MERCER NAIRNE & CO LTD
Designated contracting state (EPC)
IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 97830564 A 19971103