Processing machine and pressure adjustment method
AssigneeFanuc Corporation
InventorsYuuta Ishii, Hiroshi Minami
Life of this patent
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Abstract
A processing machine includes: a static pressure bearing configured to support a drive shaft; a fluid feeder configured to output a fluid to be supplied to the static pressure bearing, in accordance with rotation of a servomotor; a sensor configured to detect a physical quantity of the fluid output from the fluid feeder; and a control unit configured to control the rotation speed of the servomotor according to the physical quantity of the fluid.
Claims11
A processing machine for machining an object to be machined, comprising:
- a static pressure bearing configured to support a drive shaft;
- a fluid feeder configured to output a fluid to be supplied to the static pressure bearing, in accordance with rotation of a servomotor;
- a sensor configured to detect a physical quantity of the fluid output from the fluid feeder;
- an atmosphere sensor configured to detect a physical quantity of atmosphere around the processing machine;
- and
- a control unit configured to control a rotation speed of the servomotor according to the physical quantity of the fluid and the physical quantity of the atmosphere.
A pressure adjustment method for a processing machine having a fluid feeder configured to output a fluid to be supplied to a static pressure bearing configured to support a drive shaft, in accordance with rotation of a servomotor, comprising:
- an acquisition step of acquiring:
- a physical quantity of the fluid output from the fluid feeder;
- and
- a physical quantity of atmosphere around the processing machine;
- and
- a control step of controlling a rotation speed of the servomotor according to the physical quantity of the fluid acquired at the acquisition step and the physical quantity of the atmosphere acquired at the acquisition step.
Dependencies are inferred from the claim text.