HOLE MAKING APPARATUS
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United States of America Patent
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-
N/A
Issued Date -
Nov 22, 2012
app pub date -
Dec 28, 2010
filing date -
Jan 29, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An eccentric rotation drive mechanism which is rotatably contained in a first slide container is provided with an outer cylinder, an internal cylinder which is housed at eccentric position thereof and a first air motor contained therein. One end of a rotation shaft portion, that is, a shaft of the first air motor is fastened to a hole making tool, the other end of which is coupled to the end surface of the outer cylinder through a first reduction device. The rotation of the air motor makes the hole making tool rotate and revolve and simultaneously the rotation of a second air motor mounted outside of a casing is transmitted to a ball screw through a rotation transmission device inside of a second slide container to advance and retreat a feed drive mechanism so as to machine a hole in a workpiece.
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