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    Magnetic coupling device
    11.
    发明授权
    Magnetic coupling device 有权

    公开(公告)号：US11772214B2

    公开(公告)日：2023-10-03

    申请号：US17476380

    申请日：2021-09-15

    Applicant: Magswitch Technology Worldwide Pty Ltd

    Inventor： David H. Morton ,  Thomas D. Squillace ,  Paul J. Karp

    IPC: B23Q3/154 ,  B25B11/00

    CPC classification number: B23Q3/154 ,  B25B11/002

    Abstract: A magnetic device for magnetically coupling to a ferromagnetic body, comprises a housing having a central bore. A plurality of pole sectors arranged within an envelope of the central bore and forming a workpiece contact interface of the magnetic device, each of the plurality of pole sectors comprising a plurality of spaced-apart pole portions arranged at respective distances, wherein a recess of a plurality of recesses separates each pole portion of the plurality of pole portions, wherein a first sector forms a first pole of the magnetic device and a second sector forms a second pole of the magnetic device. A first permanent magnet. A second permanent being moveable relative to the first permanent magnet. And, an actuator operatively coupled to the at least one second permanent magnet to move the at least one second permanent magnet relative to the at least one first permanent magnet.

    ELECTROMAGNET-SWITCHABLE PERMANENT MAGNET DEVICE
    13.
    发明申请
    ELECTROMAGNET-SWITCHABLE PERMANENT MAGNET DEVICE 有权

    公开(公告)号：US20210296039A1

    公开(公告)日：2021-09-23

    申请号：US17340557

    申请日：2021-06-07

    Applicant: MAGSWITCH TECHNOLOGY WORLDWIDE PTY LTD

    Inventor： David H. Morton ,  Thomas R. Whitt ,  Michael H. Reed ,  Michael C. Blanchard

    IPC: H01F7/20 ,  B66C1/06 ,  H01F7/04 ,  H01F7/17

    Abstract: A switchable permanent magnetic unit is disclosed. The unit comprises: a housing, first and second permanent magnets, and a conductive coil. The first magnet is mounted within the housing and the second magnet is rotatable between first and second positions and mounted within the housing in a stacked relationship with the first magnet. The unit generates a first level of magnetic flux at a workpiece contact interface when the second magnet is in the first position and a second level of magnetic flux at the interface when the second magnet is in the second position, the second level being greater than the first level. The conductive coil is arranged about the second magnet and generates a magnetic field. A component of the conductive coil's magnetic field is directed from S to N along the second magnet's N-S pole pair when the second magnet is in the first position.

    Magnet arrays
    15.
    发明授权
    Magnet arrays 有权
    磁铁阵列

    公开(公告)号：US09484137B2

    公开(公告)日：2016-11-01

    申请号：US14508371

    申请日：2014-10-07

    Applicant: MAGSWITCH TECHNOLOGY WORLDWIDE PTY LTD

    Inventor： Franz Kocijan

    IPC: H01F7/20 ,  H01F7/02 ,  B25B11/00 ,  B66C1/04 ,  H01F7/04

    CPC classification number: H01F7/0273 ,  B25B11/002 ,  B66C1/04 ,  H01F7/02 ,  H01F7/0252 ,  H01F7/0257 ,  H01F7/04

    Abstract: Method and device for self-regulated flux transfer from a source of magnetic energy into one or more ferromagnetic work pieces, wherein a plurality of magnets, each having at least one N-S pole pair defining a magnetization axis, are disposed in a medium having a first relative permeability, the magnets being arranged in an array in which gaps of predetermined distance are maintained between neighboring magnets in the array and in which the magnetization axes of the magnets are oriented such that immediately neighboring magnets face one another with opposite polarities, such arrangement representing a magnetic tank circuit in which internal flux paths through the medium exist between neighboring magnets and magnetic flux access portals are defined between oppositely polarized pole pieces of such neighboring magnets, and wherein at least one working circuit is created which has a reluctance that is lower than that of the magnetic tank circuit by bringing one or more of the magnetic flux access portals into close vicinity to or contact with a surface of a ferromagnetic body having a second relative permeability that is higher than the first relative permeability, whereby a limit of effective flux transfer from the magnetic tank circuit into the working circuit will be reached when the work piece approaches magnetic saturation and the reluctance of the work circuit substantially equals the reluctance of the tank circuit.

    Abstract translation: 用于从磁能源到一个或多个铁磁性工件的自我调节的磁通传递的方法和装置，其中每个具有至少一个限定磁化轴的NS极对的多个磁体设置在具有第一 相对磁导率，磁体被布置成阵列，其中在阵列中的相邻磁体之间保持预定距离的间隙，并且其中磁体的磁化轴定向成使得紧邻的磁体以相反的极性彼此面对，这样的排列代表 在相邻的磁体之间存在通过介质的内部磁通路径和磁通量入口的磁性箱电路被限定在这种相邻的磁体的相对极化的极片之间，并且其中产生至少一个工作电路，该工作电路的磁阻低于 通过使一个或多个磁通量磁性回路的磁路 使入口与第二相对磁导率高于第一相对磁导率的铁磁体的表面紧密接触或接触，由此当从磁性体回路进入工作电路的有效磁通传递的限度将达到 工件接近磁饱和，工作电路的磁阻基本上等于油箱回路的磁阻。

    MAGNET ARRAYS
    16.
    发明申请
    MAGNET ARRAYS 审中-公开

    公开(公告)号：US20150022299A1

    公开(公告)日：2015-01-22

    申请号：US14508403

    申请日：2014-10-07

    Applicant: MAGSWITCH TECHNOLOGY WORLDWIDE PTY LTD

    Inventor： Franz Kocijan

    IPC: H01F7/02

    CPC classification number: H01F7/0273 ,  B25B11/002 ,  B66C1/04 ,  H01F7/02 ,  H01F7/0252 ,  H01F7/0257 ,  H01F7/04

    Abstract: Method and device for self-regulated flux transfer from a source of magnetic energy into one or more ferromagnetic work pieces, wherein a plurality of magnets, each having at least one N-S pole pair defining a magnetization axis, are disposed in a medium having a first relative permeability, the magnets being arranged in an array in which gaps of predetermined distance are maintained between neighboring magnets in the array and in which the magnetization axes of the magnets are oriented such that immediately neighboring magnets face one another with opposite polarities, such arrangement representing a magnetic tank circuit in which internal flux paths through the medium exist between neighboring magnets and magnetic flux access portals are defined between oppositely polarized pole pieces of such neighboring magnets, and wherein at least one working circuit is created which has a reluctance that is lower than that of the magnetic tank circuit by bringing one or more of the magnetic flux access portals into close vicinity to or contact with a surface of a ferromagnetic body having a second relative permeability that is higher than the first relative permeability, whereby a limit of effective flux transfer from the magnetic tank circuit into the working circuit will be reached when the work piece approaches magnetic saturation and the reluctance of the work circuit substantially equals the reluctance of the tank circuit.

    Adjustable featherboard
    20.
    发明授权
    Adjustable featherboard 有权

    公开(公告)号：US11772297B2

    公开(公告)日：2023-10-03

    申请号：US17102580

    申请日：2020-11-24

    Applicant: MAGSWITCH TECHNOLOGY WORLDWIDE PTY LTD

    Inventor： Andrew Klein ,  David Long

    IPC: B27C5/06 ,  B23D47/04 ,  B27B25/10

    CPC classification number: B27C5/06 ,  B23D47/045 ,  B27B25/10

    Abstract: The present invention relates to improvements in a magnetic featherboard, the featherboard having an elongate main body with opposite lateral faces, a bottom face and front and rear faces; a plurality of resiliently deformable feathers arranged at one or both lateral faces of the main body, and at least two, on-off switchable permanent magnets respectively received in one of at least two spaced apart recesses of the main body such that a working face of the respective switchable permanent magnet is present at the bottom face of the main body. One improvement comprises (i) providing a resiliently deformable friction gasket adjacent the working face of each of the switchable permanent magnets and protruding, in an non-deformed state, a predetermined amount from the bottom face of the main body and the working faces, the gaskets deformable through magnetic clamping of the featherboard to a table. The other improvement resides in providing at least two adjustable stops at one or both of the front and the rear face of the main body, each said stop comprising an abutment piece displaceable in longitudinal direction relative to the front/rear face, wherein a distance of each of the abutment pieces from the front/rear face is settable independently of each other, the stops operational to provide at least two abutments against which stock material to be machined can be placed when the featherboard is magnetically secured to the table.

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