| 摘要 |
An apparatus for checking the accuracy of a circular path of a work spindle or a machine table, in particular an NC-controlled machine tool, includes a clamping element coaxial with the work spindle, a first rotary bearing disposed on the clamping element and coaxial with the rotation axis of the work spindle, a measurement arm with a first pivot bearing having a first pivot axis orthogonal to the rotation axis of the clamping element, a length measurement system disposed in measurement arm with a glass rod with a marking and a reading device, an adjusting device receiving the measurement arm and having a second pivot bearing with a pivot axis aligned parallel to the first pivot axis, a second rotary bearing having a second rotation axis aligned parallel to the rotation axis of the work spindle, and a stator supporting the second rotary bearing.
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