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US 2023/0211446 A1Published application
Machine tool
AssigneeFanuc Corporation
InventorHiroshi MINAMI
Life of this patent
Estimating the term…
Abstract
A machine tool includes: a servo motor that changes the opening degree of an opening/closing valve; a current acquisition unit that acquires driving current outputted to a drive motor for driving a slider; and a motor control unit that adjusts the pressure of a compressed fluid in a fluid balancer by controlling the servo motor on the basis of the driving current.
Claims9
A machine tool including a slider configured to be movable on a guide shaft that extends along a gravity direction, the machine tool comprising:
- a fluid balancer configured to reduce a weight of the slider using a compressed fluid;
- an opening/closing valve provided in a flow path for the compressed fluid supplied from a fluid supply source to the fluid balancer, and configured to open and close the flow path;
- a servo motor configured to change an opening degree of the opening/closing valve;
- a current acquisition unit configured to acquire a drive current output to a drive motor configured to drive the slider;
- and
- a motor control unit configured to adjust a pressure of the compressed fluid inside the fluid balancer by controlling the servo motor based on the drive current.
3 more elements
Dependencies are inferred from the claim text.