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US 5,054,347 AGranted
Punch assembly with improved disassembly features
AssigneeMate Punch & Die Co.
InventorsGary E. Johnson, John T. Schneider, Nils E. Sundquist
Life of this patent
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AssigneeMate Punch & Die Co.
InventorsGary E. Johnson, John T. Schneider, Nils E. Sundquist
Estimating the term…
A punch assembly is described for a punch press having a quick tool change capability. The punch assembly comprises a punch sleeve having a punch slidably mounted therein. A tang extends from the sleeve, and a bolt is connected between the tang and the punch. An ejection spring member is mounted between the tang and the bolt for yieldably biasing the bolt in the direction of the punch. An elastic retraction member is mounted in the sleeve for biasing the punch and tang toward one end of the sleeve. Means is provided for retaining the ejection spring and bolt within the punch assembly during partial disassembly thereof so that only the punch is removed during said partial disassembly while the ejection spring and bolt remain in place when the punch is withdrawn after the bolt is unscrewed from the punch. A screw-threaded punch length adjustment platen is threadedly connected between the tang and the punch for adjusting the distance that the punch extends from the punch assembly.
A punch assembly for a punch press having a quick tool change capability, said punch assembly comprising a punch sleeve having a punch slidably mounted therein, a tang extending from the sleeve, a bolt connected between the tang and the punch, an ejection spring member mounted between the tang and the bolt for yieldably biasing the bolt in the direction of the punch, an elastic retraction member mounted in the sleeve for biasing the punch and tang toward one end of the sleeve, means for retaining the ejection spring and bolt within the punch assembly during partial disassembly thereof so that only the punch is removed during said partial disassembly while the ejection spring and bolt remain in place when the punch is withdrawn after the bolt is unscrewed from the punch.
A punch assembly for a punch press, said punch assembly comprising, a sleeve defining an enclosure for the punch assembly, a punch having an upper and a lower end, said punch being slidably mounted within the sleeve, a retraction spring operatively associated with the punch for forcing the punch toward a retracted position in the sleeve, the punch assembly includes a tang, said tang is spaced apart from the punch and is positioned above the upper end of the punch, a fastener connects the punch to the tang and a screw-threaded punch length adjustment platen is positioned in a space between the tang and the punch, said platen is threadedly connected between the tang and the punch for adjusting the distance that the punch extends from the punch assembly.
Dependencies are inferred from the claim text.