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1.发明授权公开(公告)号：US12053849B2
公开(公告)日：2024-08-06
申请号：US17427549
申请日：2019-12-12
Inventor： Hyeong Joon Ahn
IPC: B23Q11/00
CPC classification number: B23Q11/0032
Abstract: The present disclosure relates to a vibration damping system and a method for estimating a cutting force of a machine tool using the same, and according to the present disclosure, disclosed is technology including a housing; a stator rotatably positioned at an arbitrary angle in an internal space of the housing; a rotor positioned in a space inside the stator and rotating around an axis of rotation; a spindle rotating with the rotor; a first expander applying an attractive force that pulls the stator when the stator rotates; a second expander applying an attractive force in an opposite direction to the attractive force of the first expander; a first compressor applying a repulsive force that pushes the stator; and a second compressor; to suppress the generation of vibrations of the machine tool, thereby improving machining quality and machining accuracy of a structure.
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2.发明申请公开(公告)号：US20220134501A1
公开(公告)日：2022-05-05
申请号：US17427549
申请日：2019-12-12
Inventor： Hyeong Joon Ahn
IPC: B23Q11/00
Abstract: The present disclosure relates to a vibration damping system and a method for estimating a cutting force of a machine tool using the same, and according to the present disclosure, disclosed is technology including a housing; a stator rotatably positioned at an arbitrary angle in an internal space of the housing; a rotor positioned in a space inside the stator and rotating around an axis of rotation; a spindle rotating with the rotor; a first expander applying an attractive force that pulls the stator when the stator rotates; a second expander applying an attractive force in an opposite direction to the attractive force of the first expander; a first compressor applying a repulsive force that pushes the stator; and a second compressor; to suppress the generation of vibrations of the machine tool, thereby improving machining quality and machining accuracy of a structure.
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Patent Agency Ranking
公开(公告)号：US10232734B2
公开(公告)日：2019-03-19
申请号：US15860798
申请日：2018-01-03
Inventor： Hyeong Joon Ahn
Abstract: Provided is a linear motor motion stage having a passive reaction force compensation function. The linear motor motion stage includes: a base; a magnet track moving on the base; a mover which is moved on a surface of the magnet track by an electromagnetic force generated in a gap with the magnet track; first and second horizontal springs arranged between one side and the other side, respectively, of the magnet track and the base and configured to attenuate a reaction force applied to the base by movement of the mover; and a cross spring arranged between a lower side of the magnet track and the base and configured to attenuate the reaction force. Herein, the linear motor motion stage controls reaction force compensation applied to the linear motor motion stage by controlling the stiffness of the cross spring.
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公开(公告)号：US20180186249A1
公开(公告)日：2018-07-05
申请号：US15860798
申请日：2018-01-03
Inventor： Hyeong Joon Ahn
Abstract: Provided is a linear motor motion stage having a passive reaction force compensation function. The linear motor motion stage includes: a base; a magnet track moving on the base; a mover which is moved on a surface of the magnet track by an electromagnetic force generated in a gap with the magnet track; first and second horizontal springs arranged between one side and the other side, respectively, of the magnet track and the base and configured to attenuate a reaction force applied to the base by movement of the mover; and a cross spring arranged between a lower side of the magnet track and the base and configured to attenuate the reaction force. Herein, the linear motor motion stage controls reaction force compensation applied to the linear motor motion stage by controlling the stiffness of the cross spring.
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公开(公告)号：US12264710B2
公开(公告)日：2025-04-01
申请号：US18012862
申请日：2021-04-16
Inventor： Hyeong Joon Ahn
Abstract: A magnetic bearing having a colocated eddy-current displacement sensor, comprising an electromagnet unit including a circular casing having a hollow portion therein, and a plurality of electromagnets disposed along an inner periphery of the casing, an amplifier unit coupled to one side of the electromagnet unit, a coil wiring unit coupled to the other side of the electromagnet unit, and a plurality of sensor units disposed along an inner periphery of the electromagnet unit and each having two opposite ends respectively coupled to the coil wiring unit and the amplifier unit, the plurality of sensor units being provided between the coil wiring unit and the amplifier unit, in which the sensor unit is disposed colocatedly with a suspended body supported by the electromagnet unit and configured to measure a displacement of the suspended body.
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公开(公告)号：US11835118B2
公开(公告)日：2023-12-05
申请号：US17639934
申请日：2020-08-24
Inventor： Hyeong Joon Ahn
CPC classification number: F16H55/0833 , F16H49/001 , F16H55/08 , F16H2049/003
Abstract: The present invention relates to a harmonic gear device in which a first similarity curve obtained by similarly transforming a reference curve representing a moving locus of an external tooth with respect to an internal tooth in a non-deflected state and a second similarity curve generated by similarly transforming the first similarity curve are used as a criterion for generating a tooth profile, wherein the present invention may provide the harmonic gear device that enlarges a first curve represented by a moving locus of positive deflection located above the apex of the reference curve among the moving loci of positive deflection of the external teeth on the basis of the reference curve to approximate an approximate reference point arranged on the second similarity curve to create a second curve, and uses the second curve as the top of the tooth profile of the external tooth.
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公开(公告)号：US10833555B2
公开(公告)日：2020-11-10
申请号：US15361257
申请日：2016-11-25
Inventor： Hyeong Joon Ahn
Abstract: A rotary motor capable of reducing repulsive force is disclosed. The rotary motor comprises a housing, a stator located in the housing and configured to have a shape of a cylinder on which a central part is penetrated, and a rotator configured to rotate in the stator. Here, the stator rotates clockwise or counterclockwise.
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