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US 2014/0109742 A1Published application
Punch Assembly With Separate Adjustable Punch Guiding Shim Block
AssigneeMate Precision Tooling, Inc.
InventorsMitchell I. Elsmore, Dennis K. Lowry, Ronald C. Windingstad
Life of this patent
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Abstract
A punch assembly for a hydraulic punch press machine that affords the ability to compensate for punch point metal loss due to resharpening by facilitating accurate repositioning of the punch point relative to an aperture in a stripper plate through which the punch point member projects during a stamping stroke of the punch assembly.
Claims25
A punch assembly for use in a punch press comprising:
- (a) a shank adapted to be engaged by a ram of a punch press, the shank positioned at a center of an alignment ring for orienting the punch assembly with respect to the punch press in which the punch assembly is to be used;
- (b) a stripper plate coupled to the alignment ring by a plurality of fasteners allowing reciprocal displacement of the alignment ring toward and away from the stripper plate, the stripper plate having an aperture formed through a thickness dimension thereof;
- (c) at least one resilient member disposed between the alignment ring and the stripper plate for normally urging the stripper plate away from the alignment ring;
- and
- (d) a shim block fastened to an undersurface of the alignment ring and movable therewith, the shim block supporting a punch point member with a lower portion displaceable through the aperture formed through a thickness dimension of the stripper plate.
2 more elements
A punch assembly for use in a punch press comprising:
- (a) a shank adapted to be engaged by a ram of a punch press, the shank positioned at a center of an alignment ring for orienting the punch assembly with respect to the punch press in which the punch assembly is to be used;
- (b) first and second stripper plates coupled to the alignment ring by a plurality of fasteners allowing reciprocal displacement of the alignment ring toward and away from the stripper plates, the stripper plates spaced apart laterally to form a gap therebetween;
- (c) at least one resilient member disposed between the alignment ring and the first and second stripper plates for normally urging the stripper plates away from the alignment ring;
- and
- (d) a shim block fastened to an undersurface of the alignment ring and movable therewith, the shim block supporting a punch point member with a lower portion displaceable through the gap between the stripper plates.
2 more elements
Dependencies are inferred from the claim text.