Rotary spindle, crankshaft, and chuck imbalance eliminating method for lathe, involves displacing two imbalance weights in circumferential direction to rotational axis until imbalance of workpiece, spindle and chuck is eliminated

摘要

The method involves measuring imbalance relative to a direction and a magnitude by a rotary spindle using an acoustic process. Two imbalance weights are displaced in a circumferential direction to a rotational axis (10) by the rotary spindle until imbalance of a workpiece, the spindle and a chuck (2) is eliminated. The weights are automatically adjusted in an imbalance angle of an imbalance-counter direction. The workpiece is clamped in the chuck. A material at a functional point of the workpiece is removed by a control (13) of a lathe (9). An independent claim is also included for a lathe comprising a headstock.