Punch press and method of punching plate-type workpiece by the press
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United States of America Patent
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-
Nov 21, 2000
Issued Date -
N/A
app pub date -
Nov 20, 1997
filing date -
Sep 3, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A punch press includes a pair of disc-shaped tool holders rotatably mounted on supporting portions, one of the holders carrying a plurality of punch tools, and the other holder carrying a plurality of die tools which cooperate with the punch tools in order to punch a workpiece. A striker is attached to a vertically movable ram, wherein the striker is movable to a position into which desired punch and die tools attached to the pair of tool holders are indexed in order to change direction of the tools by rotating the pair of tool holders.
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