Search International and National Patent Collections

1. (WO2013119380) PUNCH ASSEMBLY WITH STEEL PUNCH POINT INSERT REMOVABLY SECURED THEREIN

Pub. No.:    WO/2013/119380    International Application No.:    PCT/US2013/022465
Publication Date: Fri Aug 16 01:59:59 CEST 2013 International Filing Date: Wed Jan 23 00:59:59 CET 2013
IPC: B26F 1/14
B26F 1/34
B21D 37/04
B21D 28/26
Applicants: MATE PRECISION TOOLING, INC.
Inventors: THIELGES, Bruce, M.
THOMSON, Steve H.
ELSMORE, Mitchell I
Title: PUNCH ASSEMBLY WITH STEEL PUNCH POINT INSERT REMOVABLY SECURED THEREIN
Abstract:
A punch assembly for a turret-type punch press comprises an outer guide sleeve having an inner bore in which a punch shank fits for reciprocating but not rotating movement. The punch shank has a concentric, downward opening formed in a lower end in which is received a head portion of an insert that has a punch point formed on it. Built into the shank is a latching mechanism for releasably wedging and thereby securing the insert to the lower end of the shank.