CHUCK DEVICE AND METHOD,申请号EP20090785481-传众专利搜索

CHUCK DEVICE AND METHOD

申请公布号：EP2340138(A2)

申请号：EP20090785481

申请日期：2009.08.13

申请公布日期：2011.07.06

申请人：

IN-SITU OILFIELD SERVICES LIMITED

发明人：ROBB, STEWART

分类号：B23B31/02;B23B31/36;B23Q3/18;B23Q17/22

主分类号：B23B31/02

摘要：<p>A chuck device is disclosed having two or more jaws for gripping an object, and an adjustment mechanism for adjusting the rotational centre of the object gripped in the jaws. The adjustment mechanism can have two adjusting devices, which can adjust the position of the rotational centre of the gripped object after it has been gripped in the chuck, and optionally a sensor mechanism for detecting the position of the object gripped within the jaws. The chuck device can typically sense the actual rotational centre of the gripped device at the location to be cut, by obtaining the measurement information from the sensor devices, and can then move the rotational centre of the jaws gripping the object to ensure that the object is centred at the position to be cut, and not necessarily at the chuck. The chuck device is suitable for use in machining devices in which the gripped object is held stationary and the cutting tool is moved rotationally and axially, and in this case, the chuck device is employed to move the gripped object to a position that is concentric with the rotational axis of the cutting tool. However, it is also applicable to other machining devices in which the gripped object is rotated relative to a cutting tool that is moved radially and axially but is not rotated.</p>