Patent ID: 9561534
Date: 2017-02-07
CPC Classifications: B21D,B26D,B26F,Y10T

Claim:
1. A method of gripping a single tool in a punch press assembly, comprising: machining an irregularly shaped curvilinear walled bore in a tool supporting plate, the irregularly shaped curvilinear walled bore comprised of two semicircular wall configurations, each semicircular wall configuration having a center of curvature, the center of curvature being different for each semicircular wall configuration; machining a curvilinear J-shaped cut in the tool supporting plate to form and define an elongated, biasable, curvilinear gripping finger, the J-shaped cut defining the curvilinear gripping finger extending more than 180 degrees around the irregularly shaped curvilinear walled bore in the tool supporting plate; inserting a tool into the irregularly shaped curvilinear walled bore in the tool supporting plate; and biasing the elongated, J-shaped curvilinear gripping finger to pivot to distort the irregular shaped curvilinear bore into a circular configuration so as to form a snug tool gripping circular wall about the single tool inserted therein.