Drilling and routing machine for printed circuit boards

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface

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Details

409225, B23B 4700

Patent

active

042125707

ABSTRACT:
A machine for drilling and routing of printed circuit boards comprises a support mechanism for supporting a stack of superimposed boards in a support plane and for moving the stack of boards in a first predetermined direction parallel to the support plane. A tool spindle is disposed above the stack of boards and is movable in a second direction parallel to the support plane and perpendicular to the first direction, so that the positions of the holes to be drilled in the PC-boards can be determined in a coordinate system having the first and second directions as its X-axis and Y-axis respectively. For holding the stack of PC-boards pressed together during the drilling or routing operation, the machine comprises press rollers, which exert a pressure force upon the stack of PC-boards towards the support mechanism. The press rollers are arranged on both sides of the tool spindle with their axes of rotation parallel to the direction in which the tool spindle can be moved, i.e. the Y-direction.

REFERENCES:
patent: 1265696 (1918-05-01), Morton
patent: 1274617 (1918-08-01), Smiley
patent: 2623440 (1952-12-01), Nipken
patent: 3587391 (1971-06-01), Pitts et al.
patent: 3730634 (1973-05-01), Gerber et al.
patent: 4013282 (1977-03-01), Kaufmann et al.

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