Lathe-cutting apparatus for crankshaft and lathe-cutting method thereof
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United States of America Patent
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Dec 13, 2005
Grant Date -
Aug 14, 2003
app pub date -
Dec 31, 2002
filing date -
Feb 6, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A lathe-cutting apparatus and a method with a structure of a chuck being simple, which are capable of lathe-cutting an eccentric part of a crankshaft with high accuracy are provided. For this purpose, the apparatus includes a supporting device (21) for supporting both end portions of a crankshaft (1), a rotational drive device (20) for rotating the crankshaft from at least one end side of the supporting device with a main journal (3) of the crankshaft as a center, and rotationally driving an eccentric part (2), a tool (31) for performing lathe-cutting of the eccentric part, and a cutting tool drive unit (30) for making a cutting edge position of the tool perform crank rotation synchronously with the rotation of the eccentric part which is rotationally driven by the rotational drive device, and performing lathe-cutting of the eccentric part.
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