Patent ID: 7065848
Filing Date: 2006-06-27
Classification: B23B,B23Q,Y10T

Abstract:
1. A crankshaft milling machine for production of crankshafts having centric and eccentric surfaces to be machined, the crankshafts being chucked to rotate around a C axis, the machine comprising: a headstock, an opposed spindle or a tailstock, at least one movable longitudinal slide, and drive units with motors for driving the crankshaft around the C axis and for feeding subassemblies for tool spindles as well as tools, wherein the respective motors in at least one drive unit used for driving the workpiece spindles and in at least one drive unit used for driving the tool spindles are configured respectively as torque motors; wherein an installation space of the torque motors is provided on the axis of the workpiece spindle and/or on the axis of the tool spindles.