EP 2839897 B1 20150708 - Punching assembly and its use
Title (en)
Punching assembly and its use
Title (de)
Stanzanordnung sowie deren Verwendung
Title (fr)
Agencement de poinçonnage et son utilisation
Publication
Application
Priority
EP 13181503 A 20130823
Abstract (en)
[origin: WO2015024645A1] In a stamping arrangement (2), during stamping a stamping punch makes contact, in the region of a punch shoulder (9), with a holding plate (6) or a pressure plate (10) between the stamping punch and holding plate. The stamping punch has a punch head (8) and the holding plate has a receptacle (17) for the punch head. Means (21) for fastening the punch head to the holding plate have a pocket (22) made in the punch head (8), a clamping screw (24) screwed into a threaded bore (23) of the holding plate, a pressure piece (25) arranged in the axial direction of the clamping screw (24) between the latter and the pocket (22), and a holding screw (26) for the pressure piece (25), wherein the holding screw (26) passes through a bore (27) of the clamping screw (24) and is screwed with a threaded portion (28) into a threaded bore (29) of the pressure piece (25). With the clamping screw (24) in a screwed-in position, areal contact is made, on a side (30) of the pocket (22) that faces away from the punch shoulder (9), between a conical portion (31) of the pressure piece (25) and a conical portion (32) of the pocket (22), and the punch shoulder (9) bears against the holding plate (6) or the pressure plate (10), wherein a screw head (41) of the holding screw (36) is arranged with axial play (34) with respect to the clamping screw (24).
IPC 8 full level
B21D 28/34 (2006.01); B21D 37/14 (2006.01)
CPC (source: EP US)
B21D 22/02 (2013.01 - US); B21D 28/343 (2013.01 - EP US); B21D 37/14 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2839897 A1 20150225; EP 2839897 B1 20150708; ES 2549797 T3 20151102; US 2016199898 A1 20160714; WO 2015024645 A1 20150226
DOCDB simple family (application)
EP 13181503 A 20130823; EP 2014002241 W 20140815; ES 13181503 T 20130823; US 201414913624 A 20140815