公开(公告)号：US10975910B2

公开(公告)日：2021-04-13

申请号：US16685021

申请日：2019-11-15

Applicant: FANUC CORPORATION

Inventor： Zhenxing Li ,  Hiroshi Minami

IPC: F16C32/06 ,  B23Q1/70

Abstract: A linear motion mechanism includes: a shaft; a base member having a through hole through which the shaft can be inserted; a static pressure bearing provided between the shaft disposed in the through hole and the base member to slidably support the shaft relative to the base member by introducing a pressurized fluid to the shaft; and an annular member provided between the static pressure bearing and the base member to elastically support the static pressure bearing.

公开(公告)号：US11748659B2

公开(公告)日：2023-09-05

申请号：US17027480

申请日：2020-09-21

Applicant: FANUC CORPORATION

Inventor： Zhenxing Li ,  Hiroshi Minami ,  Keita Hada ,  Kazuomi Maeda

IPC: G06N20/00 ,  G05B19/404

CPC classification number: G06N20/00 ,  G05B19/404 ,  G05B2219/37634 ,  G05B2219/49048 ,  G05B2219/49065 ,  G05B2219/49176

Abstract: A machine learning apparatus determines a control parameter of an active vibration isolation apparatus on which an industrial machine is mounted. The industrial machine includes a movable part, a drive source that drives the movable part, and a drive source control section that controls the drive source to position the movable part at a command position. The machine learning apparatus includes: an acquiring section that acquires, as teacher data, a positional deviation, which is a difference between the command position and an actual position of the movable part; a storage section that stores a learning model that outputs the control parameter corresponding to a state quantity concerning the industrial machine; and a learning section that updates the learning model using the teacher data.

公开(公告)号：US10444728B2

公开(公告)日：2019-10-15

申请号：US15292533

申请日：2016-10-13

Applicant: FANUC CORPORATION

Inventor： Motohiko Ito ,  Hiroshi Minami

IPC: G05B19/402 ,  G05B19/29 ,  G05B19/4061

Abstract: A numerical controller controls a machine tool that has a plurality of axes based on a program command. The numerical controller analyzes the program command. When the program command contains a positioning command, the numerical controller generates a correction path bent in a direction going away from the workpiece with respect to a straight-line path toward a commanded position from a current position of the tool that machines the workpiece, and controls respective axes of the machine tool based on the generated correction path.

公开(公告)号：US10343245B2

公开(公告)日：2019-07-09

申请号：US15786683

申请日：2017-10-18

Applicant: FANUC CORPORATION

Inventor： Toyoaki Suzuki ,  Hiroshi Minami ,  Masahiro Murota

IPC: B23Q11/08 ,  B23Q1/48 ,  B23Q11/12 ,  B23Q1/62 ,  F16C29/08

Abstract: A liquid drainage mechanism drains oil (liquid) from a Y-axis slider that moves along a predetermined path. The liquid drainage mechanism includes an outflow hole and a nozzle flow passage that are provided in a C-axis rotary mechanism and configured to flow the oil in a stator, a nozzle configured to move integrally with the Y-axis slider and discharge the oil, and a Y-axis guide member configured to guide the Y-axis slider. The nozzle is disposed at a position that is close to but not in contact with the Y-axis guide member, and the nozzle discharges the oil so that the oil reaches the Y-axis guide member.

公开(公告)号：US10335913B2

公开(公告)日：2019-07-02

申请号：US15846318

申请日：2017-12-19

Applicant: FANUC CORPORATION

Inventor： Zhenxing Li ,  Hiroshi Minami

IPC: B23Q11/14 ,  B23Q11/12 ,  F24F11/38 ,  G05B19/042 ,  G05D23/19

Abstract: A temperature control system for a machine tool is equipped with a first temperature control device configured to control the temperature of gas supplied to a gas bearing, a second temperature control device configured to control the temperature of a room interior and to issue a notification of its own operation state to the outside, a gas supply section configured to supply gas whose temperature has been controlled by the first temperature control device, and a gas supply control section configured to perform the gas supply control of the gas supply section so that gas is distributed to both of the gas bearing and an interior space, when receiving the notification that the operation state of the second temperature control device is abnormal.

公开(公告)号：US10280976B2

公开(公告)日：2019-05-07

申请号：US15693993

申请日：2017-09-01

Applicant: FANUC CORPORATION

Inventor： Hiroshi Minami ,  Masahiro Murota ,  Yuuta Hayakawa

IPC: F16C29/00 ,  F16C29/02 ,  F16C41/00 ,  F16J3/04

Abstract: A support structure for a bellows attached to a slide table, and which is capable of expanding and contracting in a movement direction of the slide table, includes support members that support the bellows, shafts disposed substantially in parallel with the movement direction of the slide table, and bushes that support the support member so as to be capable of moving in the movement direction of the slide table with respect to the shafts. Fluid bearings are formed by supplying a fluid between the bushes and the shafts.