Linear motor mounted press machine and method for controlling linear motor mounted press machine
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United States of America Patent
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Apr 28, 2009
Grant Date -
Feb 21, 2008
app pub date -
Aug 21, 2007
filing date -
Aug 21, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a linear motor mounted press machine which uses a boosting mechanism to enable machining with a greater press tonnage using a press driving source with relatively low power and which, for machining with a smaller press tonnage, enables efficient high-speed machining. A linear motor mounted press machine includes a boosting mechanism 10 having an output portion that performs a rectilinear reciprocating operation, a first linear motor 11 coupled to an output portion of the boosting mechanism 10, a second linear motor 12 having an output shaft that drives a press tool 6 forward and backward, and a coupling switching mechanism 13. The coupling switching mechanism 13 releasably couples the output shaft of the second linear motor 12 to the output portion of the boosting mechanism 10. The boosting mechanism 10 is a toggle-type link mechanism or the like. A servo motor and a crank mechanism or the like may be used in place of the first linear motor 11.
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