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公开(公告)号：US10439464B2
公开(公告)日：2019-10-08
申请号：US15890029
申请日：2018-02-06
Applicant: FANUC CORPORATION
Inventor： Chao Zhi , Yohei Kamiya
Abstract: A motor includes a rotor including a shaft and a rotor body, a bearing fitted to the shaft and rotatably holding the shaft, a bearing holder arranged on the opposite side to the rotor body so as to hold the bearing, a movement regulation member arranged closer to the rotor body than the bearing and separated to regulate movement of the bearing toward the rotor body, a first engagement part provided at the rotor body to be adjacent to the movement regulation member, a first engagement target part provided at the movement regulation member to be adjacent to the rotor body to be able to be engaged with the first engagement target part, a second engagement part provided at the movement regulation member, a second engagement target part provided at the bearing holder, and a coupling member that couples the bearing holder and the movement regulation member.
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公开(公告)号：US20190088411A1
公开(公告)日：2019-03-21
申请号：US16127790
申请日：2018-09-11
Applicant: FANUC CORPORATION
Inventor： Chao Zhi , Takuya Maeda
Abstract: A three-phase transformer according to an embodiment includes a first plate iron core and a second plate iron core disposed opposite each other; a plurality of columnar iron cores disposed between the first plate iron core and the second plate iron core so as to be connected to the first plate iron core or the second plate iron core, the number of the columnar iron cores being an integer multiple of 3, the columnar iron cores being disposed rotation-symmetrically with respect to an axis equidistant from central axes of the columnar iron cores; and coils including a plurality of primary coils and a plurality of secondary coils, the number of the primary coils being an integer multiple of 3, the number of the secondary coils being an integer multiple of 3, the primary coils and the secondary coils being wound on the individual columnar iron cores.
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公开(公告)号：US10692650B2
公开(公告)日：2020-06-23
申请号：US16127790
申请日：2018-09-11
Applicant: FANUC CORPORATION
Inventor： Chao Zhi , Takuya Maeda
Abstract: A three-phase transformer according to an embodiment includes a first plate iron core and a second plate iron core disposed opposite each other; a plurality of columnar iron cores disposed between the first plate iron core and the second plate iron core so as to be connected to the first plate iron core or the second plate iron core, the number of the columnar iron cores being an integer multiple of 3, the columnar iron cores being disposed rotation-symmetrically with respect to an axis equidistant from central axes of the columnar iron cores; and coils including a plurality of primary coils and a plurality of secondary coils, the number of the primary coils being an integer multiple of 3, the number of the secondary coils being an integer multiple of 3, the primary coils and the secondary coils being wound on the individual columnar iron cores.
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公开(公告)号：US20190033820A1
公开(公告)日：2019-01-31
申请号：US16044789
申请日：2018-07-25
Applicant: FANUC CORPORATION
Inventor： Chao Zhi , Yuanming Xu
IPC: G05B19/404 , G05B19/4093 , B23Q11/00
Abstract: A numerical controller which compensates an estimated value of a thermal displacement amount of a machine tool is provided with an estimation unit comprising a learning model having learned the correlations between information on the temperature of the machine tool and information on a thermal displacement and configured to acquire the information on the temperature from the machine tool and calculate an estimated value of the thermal displacement, based on the information on the temperature and the learning model, a compensation condition acquisition unit configured to acquire positioning information from the machine tool, and a compensation unit configured to compensate the estimated value of the thermal displacement based on the positioning information.
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公开(公告)号：US10741319B2
公开(公告)日：2020-08-11
申请号：US16023547
申请日：2018-06-29
Applicant: FANUC CORPORATION
Inventor： Takuya Maeda , Chao Zhi
Abstract: A three-phase reactor according to an embodiment includes a first plate iron core and a second plate iron core disposed oppositely to each other; a plurality of cylindrical iron cores disposed between the first plate iron core and the second plate iron core orthogonally to the first plate iron core and the second plate iron core, the iron cores being disposed rotationally symmetrically with respect to an axis equidistant from central axes of the iron cores, as a rotation axis; and a plurality of coils each wound on each of the iron cores.
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Patent Agency Ranking
公开(公告)号：US20190317472A1
公开(公告)日：2019-10-17
申请号：US16382962
申请日：2019-04-12
Applicant: Fanuc Corporation
Inventor： Chao Zhi , Wenjie Chen , Kaimeng Wang , Kazuomi Maeda
IPC: G05B19/402 , G06N20/00
Abstract: A controller that performs, for one or more axes of a machine, position control by taking friction into consideration includes a data acquisition unit acquiring at least a position command and a position feedback and a compensation torque estimation unit estimating coefficients of a friction model used when the position control is performed, on the basis of a position deviation which is a difference between the position command and the position feedback.
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公开(公告)号：US10962957B2
公开(公告)日：2021-03-30
申请号：US16286593
申请日：2019-02-27
Applicant: FANUC Corporation
Inventor： Chao Zhi , Kazuhiro Satou , Keita Hada , Takeshi Sumi , Ryutaro Ishikawa
IPC: G05B19/4061 , G06N20/00 , G05B19/402
Abstract: A collision position estimation device allowing extraction of data related to a torque of a section related to collision of a cushion member includes a machine learning device. The machine learning device includes a state observation unit for observing axis movement data indicating information related to movement of the axis and motor torque data indicating data related to torque of a motor driving the axis as a state variable representing a current state of an environment, a label data acquisition unit for acquiring collision position data indicating the position of the axis during collision of the cushion member as label data, and a learning unit for associating and learning the information related to movement of the axis and the data related to the torque of the motor driving the axis with the position of the axis during collision of the cushion member using the state variable and the label data.
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公开(公告)号：US20190019611A1
公开(公告)日：2019-01-17
申请号：US16023547
申请日：2018-06-29
Applicant: FANUC CORPORATION
Inventor： Takuya Maeda , Chao Zhi
CPC classification number: H01F27/24 , H01F3/10 , H01F3/14 , H01F27/02 , H01F27/28 , H01F27/321 , H01F37/00
Abstract: A three-phase reactor according to an embodiment includes a first plate iron core and a second plate iron core disposed oppositely to each other; a plurality of cylindrical iron cores disposed between the first plate iron core and the second plate iron core orthogonally to the first plate iron core and the second plate iron core, the iron cores being disposed rotationally symmetrically with respect to an axis equidistant from central axes of the iron cores, as a rotation axis; and a plurality of coils each wound on each of the iron cores.
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公开(公告)号：US20180329390A1
公开(公告)日：2018-11-15
申请号：US15951922
申请日：2018-04-12
Applicant: FANUC CORPORATION
Inventor： Chao Zhi
CPC classification number: G05B19/182 , B23Q3/15503 , G05B2219/35354 , G05B2219/36503
Abstract: In a machine tool, a control device performs control on an axis member rotating device and a stage rotating device such that when part of a placement region RE in a stage is arranged in a position opposite a spindle cutter in a third direction, in a direction which is at least one of a first direction and a second direction and in which accuracy is required, a screw axis length from a connection portion of the screw axis member of a ball screw and an axis member rotating device to a nut portion is minimized and that the part of the placement region RE in the stage is moved to the position opposite the spindle cutter in the third direction.
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公开(公告)号：US09811057B2
公开(公告)日：2017-11-07
申请号：US15247984
申请日：2016-08-26
Applicant: FANUC CORPORATION
Inventor： Chao Zhi
CPC classification number: G05B13/0265 , G01R31/343 , G05B19/4062 , G05B2219/37209 , G05B2219/37285 , G05B2219/42319 , G06N99/005 , H02P23/12
Abstract: A machine learning apparatus that learns a condition associated with a predicted life of a motor includes: a state observation unit that observes a state variable composed from at least one of output data of a sensor that detects an operation state of the motor and data relating to presence or absence of a failure in the motor; an actual life data acquisition unit that acquires data relating to an actual life of the motor; and a learning unit that learns the condition associated with the predicted life of the motor in accordance with a training data set created based on a combination of the state variable and the actual life.
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