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    • 1. 发明申请
    • Linear motor for use in machine tool
    • 用于机床的直线电机
    • US20060033386A1
    • 2006-02-16
    • US11200784
    • 2005-08-10
    • Masanobu UchidaKoji MiyataKen Ohashi
    • Masanobu UchidaKoji MiyataKen Ohashi
    • H02K41/00
    • H02K41/03H02K1/34
    • Provided is a linear motor for use in a machine tool having high positioning accuracy. A linear motor 10 for use in a machine tool comprises: a stator 13 comprising a plurality of permanent magnets 12 which are arranged on both faces of a plate-like yoke 11 at equal intervals in a direction in which a mover moves, wherein the permanent magnets have the same shape, are magnetized in a direction perpendicular to the faces of the yoke 11, and an adjacent permanent magnet 12 has a different magnetization orientation; and a pair of movers 16 comprising armature cores 14 wound with armature coils 15 which are opposed to rows of the permanent magnets 12 provided on both the faces of the plate-like yoke 11 such that central axes of the armature cores 15 are parallel to the magnetization direction of the permanent magnets 12. A surface treatment film can be preferably formed on an exposed surface of the permanent magnets after the plurality of permanent magnets 12 is arranged on both the faces of the plate-like yoke 11.
    • 提供一种用于具有高定位精度的机床中的线性马达。 用于机床的直线电动机10包括:定子13,其包括多个永久磁铁12,它们在移动件移动的方向上以等间隔布置在板状磁轭11的两个面上,其中永磁体 磁体具有相同的形状,在垂直于磁轭11的表面的方向上被磁化,并且相邻的永磁体12具有不同的磁化取向; 以及一对移动体16,其包括缠绕有电枢线圈15的电枢芯14,电枢线圈15与设置在板状磁轭11的两个表面上的永久磁铁12的行相对,使得电枢铁芯15的中心轴平行于 永久磁铁12的磁化方向。 在多个永磁体12布置在板状磁轭11的两个表面上之后,表面处理膜可以优选地形成在永磁体的暴露表面上。
    • 2. 发明申请
    • Linear motor for use in machine tool
    • 用于机床的直线电机
    • US20060012252A1
    • 2006-01-19
    • US11184645
    • 2005-07-18
    • Koji MiyataMasanobu UchidaKen Ohashi
    • Koji MiyataMasanobu UchidaKen Ohashi
    • H02K41/00
    • H02K41/031H02K1/146H02K1/2733H02K7/09H02K2213/03
    • The invention is a linear motor that improves the processing speed of machine tools is also a linear motor with significantly reduced cogging force, with which high-speed and high-accuracy processing can be realized. More specifically, the invention is a linear motor for use in a machine tool comprising a stator in which a plurality of permanent magnets having the same shape are mounted on both faces of a plate-like yoke at even intervals such that the permanent magnets have polarities being perpendicular to a direction in which a pair of movers move and alternating in the moving direction; the movers in which armature cores wound with armature coils are disposed such that the armature cores are opposed to the rows of the permanent magnets on the both faces of the stator; and magnetic cores that are disposed on both ends of the movers such that the distance between the magnetic cores and the rows of the permanent magnets is longer than that between the armature cores and the rows of the permanent magnets. Moreover, provided is a laser processing machine in which the above-mentioned permanent magnet type linear motor is used for a three-dimensional moving mechanism.
    • 本发明是提高机床加工速度的线性马达,也是具有明显减小的齿槽力的线性马达,可实现高速高精度加工。 更具体地说,本发明是一种用于机床的线性电动机,其包括定子,其中具有相同形状的多个永磁体以均匀间隔安装在板状磁轭的两个面上,使得永磁体具有极性 垂直于一对移动体沿移动方向移动和交替的方向; 电枢铁芯缠绕有电枢线圈的移动器被布置成使得电枢铁芯与定子的两个表面上的永久磁铁列相对; 以及设置在移动体的两端的磁芯,使得磁芯与永磁体的排之间的距离比电枢铁芯和永磁体列之间的距离长。 此外,提供了一种激光加工机,其中上述永磁型线性马达用于三维移动机构。
    • 3. 发明申请
    • Linear motor for use in machine tool
    • 用于机床的直线电机
    • US20060012251A1
    • 2006-01-19
    • US11184135
    • 2005-07-18
    • Koji MiyataMasanobu UchidaKen Ohashi
    • Koji MiyataMasanobu UchidaKen Ohashi
    • H02K41/00
    • H02K41/031H02K1/146H02K1/2733H02K16/00H02K29/03H02K2213/03
    • The invention is a linear motor that improves the processing speed of machine tools and is also a linear motor that can improve the thrust in order to achieve high acceleration. More specifically, the invention is a linear motor for use in a machine tool comprising linear motor units, each unit comprising a stator in which a plurality of permanent magnets having the same shape are mounted on both faces of a plate-like yoke at even intervals such that the permanent magnets have polarities being perpendicular to a direction in which a pair of movers move and alternating in the moving direction; and the movers in which armature cores wound with armature coils are disposed such that the armature cores are opposed to the rows of the permanent magnets on the both faces of the stator, wherein the linear motor units are disposed in parallel. When the number of the linear motor units is N and a magnet pitch, which is the sum of the width of each of the permanent magnets and the distance between adjacent permanent magnets, is τ, the linear motor units are preferably disposed such that the linear motor units are displaced in the moving direction of the movers by a natural number multiple of τ/N.
    • 本发明是提高机床加工速度的线性马达,也是能够提高推力以实现高加速度的线性马达。 更具体地说,本发明是用于包括线性电动机单元的机床的线性电动机,每个单元包括定子,其中具有相同形状的多个永磁体以均匀间隔安装在板状磁轭的两个面上 使得永磁体具有垂直于一对移动器在移动方向上移动和交替的方向的极性; 电枢铁芯与电枢线圈缠绕的移动体配置成电枢铁芯与定子的两面上的永久磁铁列相对,其中线性电动机单元平行设置。 当线性电动机单元的数量为N,作为每个永磁体的宽度和相邻永磁体之间的距离的总和的磁体间距为τ时,线性电动机单元优选地布置成使得线性电动机单元 电动机单元在移动器的移动方向上以τ/ N的自然数乘以位移。