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1. 发明授权

US4210038A Lathe having a guided movable cutter 失效
标题翻译：车床具有导向的可移动刀具
公开(公告)号：US4210038A
公开(公告)日：1980-07-01
申请号：US007165
申请日：1979-01-29
申请人： Edward G. Hill
发明人： Edward G. Hill
IPC分类号： B23Q1/62 , B23Q35/10 , B24B13/04 , H02P5/50 , B23B3/28 , B23B5/40
CPC分类号： B23Q35/105 , B23Q1/621 , B24B13/046 , H02P5/51 , Y10T82/135 , Y10T82/14 , Y10T82/143
摘要： An automatic or semi-automatic lathe especially useful for producing pre-determined optical surfaces on plastic contact lenses. A collet supported on the spindle of a variable speed motor supports a lens blank in coaxial alignment with the spindle. A cutter is held in a vertically adjustable tool post mounted on one of a pair of stacked stages arranged for linear movement radial and axial of the lens blank, respectively. The other stage is mounted on a carriage which in turn is mounted on the base of the lathe and arranged for linear movement radial of the lens blank. A second variable speed motor acting through a pair of cam-operated X/Y drive mechanisms supported on the carriage drives the stages to move the cutter across and into the face of the rotating lens blank, thereby generating any desired combination of concave and/or convex optically curved surfaces. In an alternative embodiment, individual variable speed motors power the X/Y drive mechanisms through sliding wedges or the like.
摘要翻译：一种自动或半自动车床，特别适用于在塑料隐形眼镜上生产预定的光学表面。支撑在变速马达的主轴上的夹头支撑与主轴同轴对准的透镜毛坯。切割器被保持在可安装在一对堆叠台中的一个上的可垂直调节的工具柱上，分别布置成用于透镜毛坯的径向和轴向的线性运动。另一台安装在滑架上，滑架又安装在车床的底座上，并布置成用于镜片坯料的直线运动。通过支撑在滑架上的一对凸轮操作的X / Y驱动机构作用的第二变速电动机驱动级以将切割器移动并移动到旋转透镜毛坯的表面中，由此产生凹和/或凸光光学曲面。在替代实施例中，单独的变速马达通过滑动楔等驱动X / Y驱动机构。

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