Punch tool device and method of supplying lubricating oil
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United States of America Patent
Stats
-
Jun 6, 2017
Grant Date -
Feb 9, 2012
app pub date -
Apr 12, 2010
filing date -
Apr 15, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A punch tool device vertically that is movably mounted in a punch mounting hole formed in a punch holder of a punch press includes: a punch body vertically movably provided inside a tubular punch guide vertically movably mounted in a punch mounting hole and, the punch body includes a punch edge section in its lower end portion. An elastic member is provided between the punch guide and a punch head provided on an upper end portion of a punch driver provided above the punch body. A supported section is supported by a lifter spring provided to the punch holder, is provided on an outer peripheral surface of the punch guide; and a lubricating oil path is provided in the outer peripheral surface of the punch guide so as to communicate with a lubricating oil supply path formed in the punch body, the lubricating oil path provided to be capable of coming into and out of communication with a lifter spring containing hole which contains the lifter spring.
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