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Guided keeper assembly and method for metal forming dies

  • US 8,074,486 B1
  • Filed: 05/24/2011
  • Issued: 12/13/2011
  • Est. Priority Date: 05/24/2011
  • Status: Active Grant
First Claim
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1. In a metal forming die having a die shoe, a die pad mounted a spaced apart distance from said die shoe for reciprocation between converged and diverged positions, and a biasing member disposed between said die shoe and said die pad for biasing the same to said diverged position, the improvement of a guided keeper assembly, comprising:

  • a base having;

    a generally flat mounting face abutting an adjacent face of said die shoe;

    at least one fastener aperture extending axially through a marginal portion of said base for detachably mounting said base to said die shoe;

    a central aperture extending axially through a central portion of said base; and

    a bushing mounted in said central aperture of said base;

    a guide pin having;

    a cylindrically-shaped central portion closely received in said bushing in said base for precisely guiding reciprocal motion between said die pad and said die shoe;

    a first end having an enlarged head shaped to abut said base to positively limit travel between said die shoe and said die pad; and

    a second end, positioned opposite said first end, and having a shoulder with a rigid center post protruding outwardly therefrom to precisely locate said second end of said guide pin in said die pad;

    a first fastener extending through said fastener aperture in said base and securely, yet detachably, connecting said base with said die shoe; and

    a second fastener securely, yet detachably, connecting said second end of said guide pin with said die pad.

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