Printed circuit board drilling machine

Details Printed circuit board drilling machine Printed circuit board drilling machine

1987-04-28

1988-11-22

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

With work advancing or guiding means

408 87, 408 91, 408 95, 408 98, 408700, B23Q 118

Patent

active

047862165

ABSTRACT:
A printed circuit board is supported at its peripheral portion and is moved and positioned by a drive mechanism. During the drilling of a hole in the circuit board, the thrust of the drill acting upon the circuit board is born by a sliding contact surface on a stand disposed on the side of the board opposite the drill. Ultrasonic vibration is applied to the printed circuit board via the stand during the drilling operation to prevent the occurrence of expoxy smearing.

REFERENCES:
patent: 2975661 (1961-03-01), Coleman
patent: 3853421 (1974-12-01), Sickenger
patent: 4280775 (1981-07-01), Wood

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