Process for the production of mask frames
    2.
    发明授权
    Process for the production of mask frames 失效
    生产面罩框架的过程

    公开(公告)号:US5948287A

    公开(公告)日:1999-09-07

    申请号:US906431

    申请日:1997-08-05

    摘要: A process for the production of mask frames for cathode ray tubes and is particularly useful in the production of color picture tubes for TV sets and monitors. The production of the frames is performed by welding at least two starting components, followed by forming, wherein planar starting components are positioned and fixed in positions in such way that edges of the starting components to be welded are in contact, followed by welding the starting components with at least one laser beam and, subsequently, processing the frame by pressing and/or punching. Preferably the laser beam is generated using a CO.sub.2 gas laser or a Nd:YAG solid-state laser. Preferably, the power of the laser beam is modulated to produce a weld that increases in depth from the beginning of the weld and decreases in depth at the end of the weld.

    摘要翻译: 一种用于生产阴极射线管的荫罩框架的方法,特别适用于生产电视机和显示器的彩色显像管。 通过焊接至少两个起始部件,然后形成,进行框架的制造,其中平面起始部件被定位并固定在这样的位置,使待焊接的起始部件的边缘接触,然后焊接起动 具有至少一个激光束的部件,并且随后通过按压和/或冲压来处理该框架。 优选地,使用CO 2气体激光器或Nd:YAG固体激光器产生激光束。 优选地,激光束的功率被调制以产生从焊接开始时深度增加的焊缝,并且在焊接端部处的深度减小。

    Multiphase variable-stepping-angle synchronous motor
    4.
    发明授权
    Multiphase variable-stepping-angle synchronous motor 失效
    多相可变步进角同步电动机

    公开(公告)号:US4000452A

    公开(公告)日:1976-12-28

    申请号:US500001

    申请日:1974-08-23

    申请人: Gunter Heine

    发明人: Gunter Heine

    IPC分类号: H02K37/18 H02K37/00

    CPC分类号: H02K37/18

    摘要: In the motor disclosed, five stator windings are distributed on u groups each having five main poles and coacts with a permanent magnet rotor. Each pole has n+1 pole teeth. The stator windings are connected in series or parallel to form five connecting points. A control switches five switches having an armature connected to a connecting point between a positive and negative potential so as simultaneously to energize the windings as required. The control then shifts the short-circuited condition to other windings in cyclical sequence while energizing the remaining four windings at any time. The pole divisions exhibit the relationshipsT.sub.P = nT.sub.S +.alpha.; .alpha.=T.sub.S (K+ 0.6).tau..sub.p ' = nT.sub.S +.beta. ; .beta.=T.sub.S (K'+0.6)the ratio of the rotor tooth widths to stator tooth widths at the outer diameter of the rotor is equal or smaller than unity. The number of rotor teeth Z.sub.R = u (5n+4K+K'+3). In this relation n, K, and K' are whole numbers and T.sub.P, T.sub.P ' and T.sub.S are pitches of adjacent main poles on adjacent groups and of adjacent pole teeth. The angles .alpha. and .beta. are pitches between adjacent teeth on adjacent poles and adjacent groups. The control means connect the windings so as to permit operation in one of five stepping angle modes and in a five phase or two phase mode.

    摘要翻译: 在所公开的电动机中,五个定子绕组分布在各自具有五个主极并与永磁转子共同作用的u组上。 每极都有n + 1极齿。 定子绕组串联或并联连接形成五个连接点。 A控制器将五个开关,其具有连接到正电位和负电位之间的连接点的电枢,以同时根据需要对绕组通电。 然后,该控制将周期性地将短路条件转移到其他绕组,同时在任何时间给剩余的四个绕组通电。 极点表现出关系TP = nTS +α; α= TS(K + 0。

    System and method for ballizing and measuring a workpiece bore hole
    5.
    发明申请
    System and method for ballizing and measuring a workpiece bore hole 有权
    用于球磨和测量工件钻孔的系统和方法

    公开(公告)号:US20050000077A1

    公开(公告)日:2005-01-06

    申请号:US10703689

    申请日:2003-11-07

    摘要: A system and method are described for ballizing and measuring a workpiece bore hole. In one embodiment, a ballizing unit having a distal end removably coupled to a ballizing member moves the ballizing member from a first position within the bore hole to a second position. A metrology unit having a distal end removably coupled to the ballizing member moves the ballizing member from the second position back to the first position. A sensor detects a force exerted on the ballizing member by the workpiece at a third position, which is located between the first and second positions.

    摘要翻译: 描述了用于对工件钻孔进行球化和测量的系统和方法。 在一个实施例中,具有可移除地联接到球化构件的远端的球化单元将球化构件从钻孔内的第一位置移动到第二位置。 具有可移除地联接到球化构件的远端的测量单元将球化构件从第二位置移动回到第一位置。 传感器在位于第一位置和第二位置之间的第三位置处检测由工件施加在球化构件上的力。

    Stepping motor
    6.
    发明授权
    Stepping motor 失效
    步进电机

    公开(公告)号:US4234808A

    公开(公告)日:1980-11-18

    申请号:US830124

    申请日:1977-09-02

    IPC分类号: H02K37/04 H02K37/18 H02K37/00

    CPC分类号: H02K37/18

    摘要: A stepping motor of the homopolar design with a step angle of 3.6.degree. and having a generally cubic form is disclosed. The motor includes a generally square, single-section laminated stator which has only four stator poles extending radially inwardly from the middle regions of the straight sides, and a concentric rotor secured to a shaft journaled in a pair of bearing bells fixed to the stator at the opposite faces thereof and having the same generally square configuration. The rotor includes a disc-shaped permanent magnet of high remanent energy density (B.times.H).sub.max .gtoreq.10.times.10.sup.6 GOe, and a pair of annular steel rotor elements provided at the working air gap with identical numbers Z.sub.r of rotor teeth of pitch .tau..sub.r =360.degree./Z.sub.r. Each stator pole is provided at the working air gap with four or five stator pole teeth of pitch .tau..sub.s =360.degree./Z.sub.s, where Z.sub.s is the theoretically maximum available number of stator pole teeth and must be evenly divisible by 4, and Z.sub.s =Z.sub.r -1.+-.k where k is an even integer and 0.ltoreq.k.ltoreq.6. A special twin-section insulation member adapted to be axially fitted into the stator from the opposite faces thereof and designed to permit simultaneous machine winding of the field windings onto the respective stator poles is also disclosed. This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernible only by reference to and from the entire disclosure.

    摘要翻译: 公开了具有3.6°的阶梯角并且具有大致立方体形状的单极设计的步进电动机。 电动机包括大致正方形的单段层压定子,其仅具有从直边的中间区域径向向内延伸的四个定子极,以及固定到轴上的同心转子,所述同轴转子固定在固定到定子上的一对轴承座中 其相对面并具有相同的大致正方形的构造。 转子包括高剩余能量密度(BxH)max> / = 10×10 6 GOe的圆盘形永磁体和设置在工作气隙处的一对环形钢转子元件,具有相同数量的转子齿的转子齿数τr = 360°/ Zr。 每个定子极在工作气隙处设有四个或五个节距τs = 360°/ Zs的定子极齿,其中Zs是理论上最大可用数量的定子极齿,并且必须可以被4等分除,Zs = Zr-1 +/- k,其中k是偶数整数,0

    Cartridge style fluid dynamic bearing with conical or spherical bearing elements
    8.
    发明授权
    Cartridge style fluid dynamic bearing with conical or spherical bearing elements 失效
    带锥形或球面轴承元件的筒式流体动力轴承

    公开(公告)号:US06655841B1

    公开(公告)日:2003-12-02

    申请号:US09595295

    申请日:2000-06-15

    IPC分类号: F16C3206

    摘要: A fluid dynamic bearing cartridge includes a shaft or sleeve adapted to be fixed in place has at least one fluid dynamic bearing supporting the shaft and one or more seals at either end of the shaft. The seal arrangements may include a pair of centrifugal capillary seals at either end of the shaft. Alternatively, a grooved pumping seal or centrifugal capillary seal at one end may be used in combination with a static capillary seal, especially where a journal bearing defined along the shaft near the capillary seal has an imbalanced groove section.

    摘要翻译: 流体动力轴承盒包括适于固定在适当位置的轴或套筒,其具有支撑轴的至少一个流体动力轴承和轴的任一端的一个或多个密封件。 密封装置可以包括在轴的任一端的一对离心毛细管密封件。 或者,一端的槽式泵送密封或离心毛细管密封可以与静态毛细管密封件组合使用,特别是在靠近毛细管密封件的轴上限定的轴颈轴承具有不平衡的槽部分的情况下。

    Disc drive with self-pressurizing fluid bearing and
shaft-supporting-ball retaining element
    9.
    发明授权
    Disc drive with self-pressurizing fluid bearing and shaft-supporting-ball retaining element 失效
    带有自加压流体轴承和轴支撑球保持元件的盘式驱动器

    公开(公告)号:US5710678A

    公开(公告)日:1998-01-20

    申请号:US478975

    申请日:1995-06-07

    IPC分类号: G11B19/20

    CPC分类号: G11B19/2009

    摘要: The present invention replaces the current spindle motor ball bearing system of a hard disc drive by a system comprising three separate elements, including a self-pressurizing journal bearing for establishing radial stiffness which comprises a rotating shaft and sleeve with air or other fluid therebetween. A chevron or herringbone pattern is established on the sleeve or shaft to establish a self-pressurizing hydrodynamic bearing which maintains the stability of the system while providing for very simple manufacturing of the system. Additionally, a thrust bearing is defined based on the air pressure build-up between the housing for the disc stack and the disc stack itself. The term "integrated air-bearing" is used to name this thrust bearing because it is built up with components such as discs and housing which exist in any typical hard disc assembly. The integrated air-bearing may be sufficiently established by building up the bottom surface of the housing or the base of the housing to within a very close distance of the lower surface of the disc; preferably, both the top surface of the top disc and bottom surface of the bottom disc are located close to pads, or other configurations are built up to define a narrow gap between the top and bottom surfaces of the disc stack and the housing. Third, an axial elastic thrust bearing defines the axial position of the disc stack at rests and avoiding contact between the surfaces forming the integrated air-bearing (in other terms, disc and housing). This elastic thrust bearing comprises a ball fixed to the shaft that rest against an elastic shield fixed to the end sleeve of the journal bearing or the base of the disc drive. This bearing defines the axial position of the disc stack.

    摘要翻译: 本发明通过包括三个独立元件的系统来代替硬盘驱动器的当前主轴电机滚珠轴承系统,该系统包括用于建立径向刚度的自加压轴颈轴承,其包括旋转轴和具有空气或其它流体的套筒。 在套筒或轴上建立人字形或人字形图案以建立自加压流体动力轴承,其保持系统的稳定性,同时提供非常简单的系统制造。 另外,推力轴承是基于用于盘片的壳体和盘片本身之间的空气压力积分来定义的。 术语“一体式空气轴承”用于命名该推力轴承,因为它由诸如盘和壳体的部件组成,其存在于任何典型的硬盘组件中。 集成的空气轴承可以通过将壳体的底表面或壳体的底部构建到与盘的下表面非常接近的距离内来充分地建立; 优选地,顶盘的顶表面和底盘的底表面位于靠近垫的位置,或者构建其它构造以限定盘堆叠和壳体的顶表面和底表面之间的窄间隙。 第三,轴向弹性止推轴承限定盘片在静止时的轴向位置,并避免形成一体式空气轴承(换句话说,盘和壳体)的表面之间的接触。 该弹性止推轴承包括固定到轴上的球,其抵靠固定到轴颈轴承的端套或磁盘驱动器的底座的弹性屏蔽。 该轴承定义了盘叠的轴向位置。

    Variable stepping-angle synchronous motor
    10.
    发明授权
    Variable stepping-angle synchronous motor 失效
    可变步进角同步电机

    公开(公告)号:US4095161A

    公开(公告)日:1978-06-13

    申请号:US696310

    申请日:1976-06-15

    IPC分类号: H02K37/14 G05B19/40

    CPC分类号: H02K37/14

    摘要: In the disclosed motor arrangement, a single stator operates with one of eight rotors having a number of teeth equal to Z.sub.R = 5u(n + 1) .+-. gu. In the equation, n is one less than the number of teeth on each pole of the stator, u is equal to the number of pole groups, and g is any integer varying from 1 to 4. Energizing the poles of the motor is one of five winding arrangements. The motor, with a single stator, is capable of stepping at one of 40 stepping angles.