Patent ID: 11911891
Assignee: THK CO., LTD.
Field: Handling (Mechanical engineering)
Classification: CPC B  H  G | IPC B  G

Claim 2:
3. The actuator system according to claim 2, wherein, when the pickup request signal transmitted from the control device is received by the head unit, the head unit performs:
controlling the actuator to move the shaft downward in the axial direction,
determining whether or not the tip of the shaft is in contact with the workpiece, based on a sensing result from the load detection sensor,
controlling the actuator at a time point when the tip of the shaft is determined to have contacted the workpiece, to stop the shaft from moving downward in the axial direction,
controlling the actuator to generate the negative pressure in the hollow part of the shaft,
determining whether or not the workpiece is suctioned to the tip of the shaft, based on a sensing result from the suction detection sensor,
controlling the actuator at a time point when it is determined that the workpiece is suctioned to the tip of the shaft, to move the shaft upward in the axial direction, and
transmitting, to the control device, a pickup completion signal that is a signal indicating completion of pickup of the workpiece.