Machine for precision machining, with a rod for the determination of the practical mean axis of a hole of cylindrical general contour
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United States of America Patent
Stats
-
Mar 26, 1991
Grant Date -
N/A
app pub date -
May 24, 1989
filing date -
May 27, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Machine for precision machining, with a rod for the determination of the ctical mean axis of a hole of cylindrical general contour. The present invention relates to a machine for precision machining, in particular for the grinding of valve seatings of heat engines, which is in accordance with the described in the European Patent EP-B-No. 0,022,796. According to the invention, the pilot rod (11) comprises various annular recesses (11a), in which various rings (13) which are resiliently deformable in the radial direction are respectively mounted. The invention is applicable to all types of machines for machining necessitating the presence of a pilot rod.
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