| 摘要 |
The invention relates to a balancing machine for measuring the rotating unbalance of a tool holder in two different clampings, comprising a spindle which can be set into rotation. The spindle comprises an automatically actuatable coupling, by which the tool holder can be coupled rigidly to the spindle in a first position in order to rotate with the spindle around the rotational axis of the tool holder and the tool holder can be coupled rigidly to the spindle in a second position in order to rotate with the spindle around the rotational axis of the tool holder. The balancing machine also comprises at least one measuring sensor for determining the rotating unbalance of the tool holder rotating in the spindle unit, wherein the device has a brake which retains the tool holder.
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