发明名称 |
MANDREL PROVIDED WITH ANGULAR INDEXABLE JAWS |
摘要 |
<p>An automatic indexing mandrel comprises a dividing pivot (20) separately and in succession, operated by a dividing shaft (29) and a locking sleeve (23). The dividing shaft (29) is slideably and sealingly accommodated in the cavity of the locking sleeve (23) which has retention planes (28) for the dividing pivot and is in turn sealingly accommodated in a mandrel body cavity divided into counterposed chambers (24,32) by a separator (31); the dividing shaft (29) and the locking sleeve (23) forming a single circuit fluidodynamic system with counterposed pistons and reversible inlet and outlet, the pistons moving in opposite directions to perform in succession unlocking, rotation and locking of the dividing pivot (20).</p> |
申请公布号 |
EP0258557(B1) |
申请公布日期 |
1991.08.28 |
申请号 |
EP19870109151 |
申请日期 |
1987.06.25 |
申请人 |
AUTOBLOK S.P.A. |
发明人 |
BRONZINO, WALTER;BRONZINO, PIER MAURO |
分类号 |
B23B31/16;B23B31/30;B23B31/34;B23Q16/02;F15B15/14 |
主分类号 |
B23B31/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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