METHOD OF MACHINING SURFACES OF ROTOR DISC AND GRINDING MACHINE THEREFOR

摘要

A grinding machine for finishing turned surfaces of a rotor disc for a gas turbine engine, including a retaining mechanism for retaining the rotor disc and rotatable about a rotational axis corresponding to a central axis of the rotor disc, a spindle engaged to a grinding wheel and rotatable about a rotational axis corresponding to a central axis of the grinding wheel, the grinding wheel having an outer super abrasive surface, a translating mechanism engaged to at least one of the retaining mechanism and the spindle and actuable to provide a relative translational motion between the retaining mechanism and the spindle along three perpendicular axes, and a pivoting mechanism engaged to one of the retaining mechanism and the spindle and actuable to provide a pivoting motion of the rotational axis of one of the retaining mechanism and the spindle around a pivot axis perpendicular thereto.

主权项

1. A grinding machine for finishing turned surfaces of a rotor disc for a gas turbine engine, the machine comprising:
a retaining mechanism configured for retaining the rotor disc, the retaining mechanism being rotatable about a rotational axis corresponding to a central axis of the rotor disc; a spindle engaged to a grinding wheel, the spindle being rotatable about a rotational axis corresponding to a central axis of the grinding wheel, the grinding wheel having an outer super abrasive surface; a translating mechanism engaged to at least one of the retaining mechanism and the spindle, the translating mechanism being actuable to provide a relative translational motion between the retaining mechanism and the spindle along three perpendicular axes; and a pivoting mechanism engaged to one of the retaining mechanism and the spindle, the pivoting mechanism being actuable to provide a pivoting motion of the rotational axis of one of the retaining mechanism and the spindle around a pivot axis perpendicular thereto.