Position-dependent compliance compensation in a machine tool

A device for compensating a position-dependent compliance of a machine tool, comprising:

• a memory storing machine data,
• a compliance deriving unit which derives from stored machine data the position-dependent compliance of the machine tool at a tool position of a tool of the machine tool,
• a force determining unit which determines a machining force acting upon the tool during a machining process at the tool position, and
• a machining parameter modifying unit which determines, depending on the position-dependent compliance received from the compliance deriving unit and the machining force received from the force determining unit, at least one machining parameter affecting the machining process at the tool position so as to counteract a displacement of the tool from a desired tool position caused by the position-dependent compliance of the machine tool and the machining force.

A machine tool comprising a device for compensating a position-dependent compliance, the device comprising:

• a memory storing machine data,
• a compliance deriving unit which derives from stored machine data the position-dependent compliance of the machine tool at a tool position of a tool of the machine tool,
• a force determining unit which determines a machining force acting upon the tool during a machining process at the tool position, and
• a machining parameter modifying unit which determines, depending on the position-dependent compliance received from the compliance deriving unit and the machining force received from the force determining unit, at least one machining parameter affecting the machining process at the tool position so as to counteract a displacement of the tool from a desired tool position caused by the position-dependent compliance of the machine tool and the machining force.