Method and apparatus for machining printed circuit boards
    1.
    发明公开
    Method and apparatus for machining printed circuit boards 失效
    用于处理印刷电路板的方法和装置。

    公开(公告)号:EP0555575A1

    公开(公告)日:1993-08-18

    申请号:EP92304176.8

    申请日:1992-05-08

    IPC分类号: H05K3/00

    摘要: An apparatus and method are disclosed for efficiently lubricating printed circuit boards (16) which are being machined. A vacuum system (50) and a lubrication system (70) are employed on a drilling machine (10) having a spindle assembly (12) and an independently-movable pressure foot (26) wherein the vacuum system (50) and lubrication system (70) are each in fluid communication with a working area (42) defined by the interior of the pressure foot (26). A method for using the vacuum system (50) and the lubrication system (70) includes directing the pressure foot (26) against the workpieces (16) to create a fluid seal, creating a vacuum within the interior of the pressure foot (26), supplying lubricant (78) to the hole being drilled so that lubricant (78) accumulates only within the working area (42) and, finally, releasing the pressure foot (26) from engagement with the workpieces (16) to permit a flow of air into the interior of the pressure foot (26) thereby permitting used lubricant (90) and chips (92) to be evacuated through an exhaust conduit (54) and into a waste receptacle (56).

    摘要翻译: 的装置和方法都是游离缺失盘对作为被加工有效地润滑印刷电路板(16)。 一种真空系统(50)和一个润滑系统(70)用于在unabhängig移动的压脚(26)钻孔机(10),其具有主轴组件(12)上,并且其中,所述真空系统(50)和润滑系统( 70)分别(与工作区域(42流体连通)通过压脚26)的内部限定。 一种使用真空系统(50)和润滑系统(70)的方法包括引导所述压脚(26)靠着所述工件(16),以形成流体密封件,所述压脚的所述内部中形成真空(26) ,供给润滑剂(78)的孔被钻所以没有润滑剂(78),仅累积在工作区域内(42),最后,从与工件接合释放压脚(26)(16),以允许流 空气进入压脚(26),从而允许使用的润滑剂(90)和芯片(92)的内部,以通过排气管道(54)并进入废物容器(56)被排空。