| 摘要 |
The present invention relates to a complex hydrostatic unit system. The purpose of the present invention is to realize stable lift and soft landing of a rotary table of a bearing unit by electronically controlling the operation of the rotary table of the bearing unit included in a machine tool during a normal or a blackout situation. According to an embodiment of the present invention, the complex hydrostatic unit system electronically controls the operation of a rotary table of a bearing unit included in a machine tool, by comprising: a control unit which generates a hydraulic control signal by receiving an alternating current power source from an outside power supply unit; a hydrostatic unit which supplies oil to a bearing unit according the hydraulic control signal from the control unit; a power supply control unit which is included between the outside power supply unit and the control unit in order to sense blackout, and controls power supply supplied to the control unit; and a battery unit which supplies uninterruptible power supply to the control unit during blackout. The control unit includes an inverter. The power supply control unit receives uninterruptible power supply from the battery unit for a fixed time in order to supply the uninterruptible power supply to the inverter when blackout is sensed. The inverter converts the uninterruptible power supply into alternating current power source in order to output a hydraulic control signal. |
