Tool spindle having balancing system, system including tool spindle having balancing system, and method for operating tool spindle having balancing system

A system comprising:

• a tool spindle comprising:
• a spindle shaft rotationally-drivable about a spindle axis,
• a clamping system configured to automatically chuck and unchuck a tool, wherein the clamping system comprises at least one clamping body that is one or more of movable or deformable, and a movement device configured to transfer the clamping body from a first position into a second position by moving a part of the movement device relative to the spindle shaft, wherein a tool is chuckable on the tool spindle in the first position and removable from the tool spindle in the second position, and
• a balancing system:
• integrated into the tool spindle so as to rotate jointly with the spindle shaft,
• arranged coaxially in relation to the spindle axis, and
• mounted so as to be axially movable,
• wherein the balancing system comprises:
• at least one weight pivotally mounted about the spindle axis, and
• a motor integrated into the balancing system and configured to pivot the at least one weight about the spindle axis;
• and
• a balancing system controller configured to control said pivoting of the at least one weight, to reduce or compensate for an imbalance of the tool spindle during rotation of the tool spindle about the spindle axis.

A method comprising:

• operating a tool spindle that comprises
• a spindle shaft rotationally-drivable about a spindle axis,
• a clamping system configured to automatically chuck and unchuck a tool, wherein the clamping system comprises at least one clamping body that is one or more of movable or deformable, and a movement device configured to transfer the clamping body from a first position into a second position by moving a part of the movement device relative to the spindle shaft, wherein a tool is chuckable on the tool spindle in the first position and removable from the tool spindle in the second position, and
• a balancing system:
• integrated into the tool spindle so as to rotate jointly with the spindle shaft,
• arranged coaxially in relation to the spindle axis, and
• mounted so as to be axially movable,
• wherein the balancing system comprises:
• at least one weight pivotally mounted about the spindle axis, and
• a motor integrated into the balancing system and configured to pivot the at least one weight about the spindle axis;
• and
• wherein the at least one clamping body is movable,
• wherein the operating step includes:
• during chucking of a tool, moving the movement device relative the spindle shaft and, in turn, transferring the at least one clamping body from the second position to the first position, and
• after said chucking of the tool:
• a) executing a rotational movement of the tool spindle including the tool about the spindle axis,
• b) determining whether an imbalance exists,
• c) pivoting the at least one weight of the balancing system about the spindle axis if an imbalance exists, and
• d) repeating steps b) and c) until an imbalance no longer exists or until the imbalance is below a predetermined value.