Punch head for a punch press
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United States of America Patent
Stats
-
Oct 23, 1984
Grant Date -
N/A
app pub date -
Jul 26, 1982
filing date -
Jul 26, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A punch press (10) having a punching head (30) which includes a large eccentric crankshaft (42) for operating selected punches (32). The large eccentric crankshaft (42) withdraws the punch (32) into an upper tool support (92) for a relatively large portion of the crankshaft rotation. The crankshaft (42) is connected to a selected punch (32) by a suitable mechanical interposer. The upper tool support (92) is provided to hold a variety of punches (32) and is movable to bring a selected punch (32) into position for being operated by the punching head (30). A mechanism is provided for relative positioning of a workpiece and the punching head (30). Since the punch (32) is withdrawn within the upper tool support (92) for a relatively large portion of the crankshaft (42) rotation the movement of the workpiece can take place while the selected punch is moving but withdrawn within the upper tool support (92).
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