ORBITAL DRILLING TOOL UNIT
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United States of America Patent
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-
N/A
Issued Date -
Jul 22, 2010
app pub date -
Jun 17, 2008
filing date -
Jul 5, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An orbital drilling tool unit configured to be detachably mounted to a rotatable spindle of a stationary machine tool. The tool unit comprises an outer eccentric body having an eccentric, longitudinally extending cylindrical hole, an inner eccentric body rotatably supported in the eccentric hole of the outer eccentric body and having likewise an eccentric, longitudinally extending cylindrical hole, a spindle motor for detachably supporting a cutting tool and rotatably supported in the eccentric hole of the inner eccentric body. The machine tool end of the outer eccentric body is configured to be concentrically mounted to a tool holder attached to the machine tool spindle for rotating the outer eccentric body. A radial offset adjusting means is configured for rotating the inner eccentric body relative to the outer eccentric body for adjusting the radial offset of the spindle motor center axis relative to the center axis of the machine tool spindle, and a means is provided for transferring power to the spindle motor for rotating the cutting tool.
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