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    Main spindle apparatus of machine tool
    2.
    发明授权
    Main spindle apparatus of machine tool 失效
    机床主轴装置

    公开(公告)号：US5344260A

    公开(公告)日：1994-09-06

    申请号：US37378

    申请日：1993-03-26

    申请人： Shigeru Suzuki ,  Motonori Kobara ,  Yasuhiro Hisatomi ,  Yoshinori Yamaguchi ,  Hiroshi Yonetani ,  Kiyoyuki Fukushima ,  Yoshimasa Sakamoto ,  Toru Yagami ,  Toshihide Kamei

    发明人： Shigeru Suzuki ,  Motonori Kobara ,  Yasuhiro Hisatomi ,  Yoshinori Yamaguchi ,  Hiroshi Yonetani ,  Kiyoyuki Fukushima ,  Yoshimasa Sakamoto ,  Toru Yagami ,  Toshihide Kamei

    IPC分类号： B23B29/034 ,  B23B39/00 ,  B23B41/00

    CPC分类号： B23B29/03446 ,  Y10T408/85892 ,  Y10T408/85895 ,  Y10T82/12

    摘要： A tool holder is detachably secured to the lower end of a main spindle by means of a clamping nut having a female screw cooperating with a male screw of the main spindle such that keys are inserted into corresponding key recesses formed in an upper end face of the tool holder. Within the main spindle, there is arranged a driving shaft movably in an axial direction. Within the tool holder, a piston member is arranged movably in the axial direction. To a lower end of the driving shaft is provided a projection having a circular recess formed in an outer surface thereof. To an upper end portion of the piston member are secured a plurality of steel balls movably in a radial direction. A lower end of the piston member is formed as an inclined surface which is engaged with a cam surface of a tool fitting plate arranged movably in the radial direction. When the driving shaft is moved downward, the balls are inserted into the circular recess formed in the projection of the driving shaft so that the driving shaft is coupled with the piston member. Therefore, by moving the driving shaft up and down, the piston member is also moved up and down and this movement of the piston member is converted into the radial movement of the tool fitting plate. By moving the driving shaft upward, the tool holder may be exchanged automatically.

    摘要翻译： 工具架借助于具有与主轴的外螺纹配合的内螺纹的夹紧螺母可拆卸地固定在主轴的下端，使得键被插入形成在主轴的上端面中的对应的键槽中 工具托架。 在主轴内，沿轴向可动地设置驱动轴。 在工具架内，活塞部件沿轴向移动。 在驱动轴的下端设置有在其外表面形成有圆形凹部的突起。 活塞构件的上端部沿径向移动地固定多个钢球。 活塞构件的下端形成为与径向可动地配置的工具装配板的凸轮面接合的倾斜面。 当驱动轴向下移动时，将球插入形成在驱动轴的突起中的圆形凹槽中，使得驱动轴与活塞构件联接。 因此，通过上下移动驱动轴，活塞部件也上下移动，活塞部件的移动转换成工具装配板的径向运动。 通过向上移动驱动轴，刀架可以自动更换。

    Measuring apparatus and accuracy analyzing apparatus having the same
    3.
    发明授权
    Measuring apparatus and accuracy analyzing apparatus having the same 失效
    测量装置及其精度分析装置

    公开(公告)号：US07096751B2

    公开(公告)日：2006-08-29

    申请号：US10739000

    申请日：2003-12-19

    申请人： Toru Yagami

    发明人： Toru Yagami

    IPC分类号： G01B5/20

    CPC分类号： G01B5/25

    摘要： A measuring apparatus 2 comprises: a base 10 fixed onto the rotary table 83; a rotational angular position detector 35 having first and second members 36 and 37 mounted in relatively rotatable fashion about a preset rotational center axis, one member being provided with a scale and the other with a reading device, wherein the first member 36 is mounted fixedly on the base 10; a restraining mechanism 55 which engages with the second member 37 of the rotational angular position detector 35 and thereby restrains rotation of the second member 37, while allowing the base 10 and the rotational angular position detector 35 to move in vertical direction; and a ring-shaped detection member 49 mounted perpendicularly on the base 10 by orienting center axis at right angles to the upper surface of the rotary table 83 and accommodating therein the rotational angular position detector 35.

    摘要翻译： 测量装置2包括：固定在旋转台83上的基座10; 旋转角位置检测器35，其具有围绕预设的旋转中心轴线以相对可旋转的方式安装的第一和第二构件36和37，一个构件设置有刻度尺，而另一个构件具有读取装置，其中第一构件36固定地安装 基地10 限制机构55，其与旋转角位置检测器35的第二构件37接合，从而抑制第二构件37的旋转，同时允许基座10和旋转角位置检测器35沿垂直方向移动; 以及通过使中心轴与旋转台83的上表面成直角定位并且容纳其中的旋转角位置检测器35而垂直安装在基座10上的环形检测构件49。