Apparatus for rolling a ring-shaped work
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United States of America Patent
Stats
-
Feb 25, 1997
Grant Date -
N/A
app pub date -
May 18, 1995
filing date -
May 18, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A work 12 is selectively loaded one of forming portions 20, 22, and so on, which are formed on a mandrel 18. Then, the work 12 is pressed between the selected forming portion and a forming roll 10 and rotated together with the forming roll 10 and the mandrel 18 in this state, thereby rolled and formed a groove on its inner surface. The mandrel 18 is provided movably in its axial direction, and the forming portions 20, 22, and so on, are subsequently selected for rolling the work 12 step by step. After finishing the rolling, the work 12 is unloaded from the mandrel 18, guided by a work guiding passage, and is supplied to the sizing device 120, wherein the work 12 is pushed into a die 121 and sized the outer diameter thereof.
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Cited Art Landscape
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