Tool deflection compensation with an adaptronic milling spindle
نویسندگان
چکیده
The adaptronic spindle for milling machines can be positioned by piezoelectric actuators in three axial directions. This enables an automatic online-compensation of tool deflections in the milling process. The tool deflection is calculated by the process forces and the tool stiffness previously measured. A new spindle position is calculated to counteract the tool deflection. This procedure can reduce the tool deflection between 60 and 90 percent in the first measurements. The efficiency of the compensation is verified in milling tests with control on and off.
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