Punch press
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United States of America Patent
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Dec 9, 2008
Grant Date -
Aug 12, 2004
app pub date -
Dec 29, 2003
filing date -
Feb 6, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention provides a punch press which enables cartridges to be easily replaced so that the replacement of the cartridges allows the use of a large number of tools, which enables tools in the cartridges to be quickly indexed, and which allows the accuracy of punching to be easily improved. Cartridges 3, 4 are used which hold tools 1, 2, respectively. Cartridge holders 6, 7 are provided which hold the cartridges 3, 4, respectively, that are supported by a punch frame 5 and located at a press position P. A ram 10 is provided above the cartridge means holders 6, 7. The cartridge holders 6, 7 have cartridge clamps 14, 15, respectively, removably holding the corresponding cartridges 3, 4. The cartridge holders 6, 7 have cartridge rotating mechanisms 16, 17, respectively, that rotate the held cartridges 3, 4 in order to index any of the tools 1, 2. The cartridge holders 6, 7 fix the cartridges 3, 4 during punching so that the cartridges cannot be moved in a vertical direction.
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