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US6052890A Method of making a head disk assembly using a propagated light beam to detect a clearance between a disk and a head 失效
标题翻译：使用传播光束制造头盘组件以检测盘和头之间的间隙的方法
公开(公告)号：US6052890A
公开(公告)日：2000-04-25
申请号：US102598
申请日：1998-06-22
申请人： Gerald Daniel Malagrino, Jr. , John Bornholdt , Peter Keim
发明人： Gerald Daniel Malagrino, Jr. , John Bornholdt , Peter Keim
IPC分类号： G11B5/48 , G11B21/21 , G11B5/127
CPC分类号： G11B21/21 , G11B5/4806 , Y10T29/49025
摘要： A method of making a head disk assembly using a fixture is disclosed. The head disk assembly includes a base having an interior-horizontal surface and a side wall extending in a direction substantially perpendicular to the horizontal surface, a disk for coupling to the base, and a head for coupling to the base. The disk includes a head facing surface and an outer diameter and the head includes a disk facing surface. The fixture includes a light source for propagating a light beam towards the side wall, a light reflecting structure for receiving the light beam and outputting a reflected light beam, and a control structure for controlling a vertical movement of the light reflecting structure, the light reflecting structure includes a reflecting mirror surface defining an angle with respect to the horizontal surface. The method includes the steps of coupling the disk to the base, coupling the head to the base, positioning the head towards the disk such that the head is positioned adjacent to the outer diameter of the disk and positioned between the outer diameter and the side wall. The method further includes controllably moving the light reflecting structure vertically towards the horizontal surface such that the reflecting mirror surface is positioned proximate to the disk and the head and is positioned between the side wall and the head, propagating the light beam from the light source to the light reflecting structure such that the reflecting mirror surface reflects the light beam incident upon its surface to output the reflected light beam such that the reflected light beam defines a signal that depends on an amount of light passing between the head facing surface and the disk facing surface, detecting a clearance between the head facing surface and the disk facing surface based on the signal, and merging the head with the disk.
摘要翻译：公开了一种使用夹具制造头盘组件的方法。头盘组件包括具有内水平表面和在基本上垂直于水平表面的方向延伸的侧壁的基座，用于联接到基座的盘，以及用于联接到基座的头部。盘包括面向头的表面和外径，并且头部包括面向盘的表面。灯具包括用于将光束向侧壁传播的光源，用于接收光束并输出反射光束的光反射结构，以及用于控制光反射结构的垂直移动的控制结构，反射光结构包括相对于水平表面限定角度的反射镜表面。该方法包括以下步骤：将盘连接到基座，将头部连接到基座，将头部朝向盘定位，使得头部邻近盘的外径定位并定位在外径和侧壁之间。该方法还包括可控地将光反射结构垂直地移向水平表面，使得反射镜表面位于靠近盘和头部并且位于侧壁和头部之间，并将光束从光源传播到所述光反射结构使得所述反射镜表面反射入射在其表面上的光束以输出所述反射光束，使得所述反射光束限定取决于在面向头部的表面和所述盘对面之间通过的光量的信号基于该信号检测头朝向表面和面向盘的表面之间的间隙，并将头与盘合并。

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