Internal milling machine for milling crank pins
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United States of America Patent
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-
Aug 5, 1980
Issued Date -
N/A
app pub date -
May 9, 1979
filing date -
May 9, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The machine of the present invention is an internal milling machine designed to mill the crank pins and crank arm cheeks of heavy crankshafts to precise dimensions. Positively locked clamping systems are employed to rigidly fix the headstock at indexed positions on the machine ways and to rotatively lock the chuck at rotatively indexed positions. Both clamping systems are capable of shifting the headstock and headstock chuck to a final precisely located indexed position as the locking members are moved into their locking relationship.
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