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US 12,515,285 B2Granted
Screw fastening system
AssigneeFanuc Corporation
InventorsYuuki Katou, Kenji Takahashi
Life of this patent
Estimating the term…
Abstract
A screw fastening system includes: an electric motor; a holding device for holding the electric motor; a support member mounted to a drive shaft of the electric motor; a screw fastening machine supported by the support member, and capable of executing a screw fastening operation with pulsed fastening control; and a motor control unit for controlling the electric motor to reduce a fastening-torque reaction force, caused by the screw fastening operation with pulsed fastening control executed by the screw fastening machine, with respect to the holding device.
Claims7
A screw fastening system, comprising:
- an electric motor;
- a machine configured to retain the electric motor;
- a support frame attached to a drive shaft of the electric motor;
- a nutrunner supported by the support frame, the nutrunner being capable of performing a screw fastening operation by means of pulse-controlled fastening;
- and
- a processor configured to control the electric motor so as to reduce a fastening torque reaction force on the machine generated in the screw fastening operation by means of the pulse-controlled fastening performed by the nutrunner.
3 more elements
Dependencies are inferred from the claim text.