Combined machining apparatus for making piston rings
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United States of America Patent
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-
May 15, 2001
Grant Date -
N/A
app pub date -
Nov 29, 1999
filing date -
Mar 4, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A combined apparatus for making piston rings is disclosed which is provided with an interior-exterior working machine (1) operable under synchronous control by an NC unit (36) for machining both inside and outside of a workpiece (16) composed of a stack of piston ring workpieces brought and held together; a severing machine (41) for severing the workpiece (16) longitudinally thereof; and a common bed (1a), wherein the interior-exterior working machine (1) as a first machine body and said severing machine (41) as a second machine body are mounted adjacent to each other on the common bed (1a).
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