Drilling machine for boards, particularly of printed circuits

Details Drilling machine for boards, particularly of printed circuits Drilling machine for boards, particularly of printed circuits

1984-02-01

1986-06-24

Weidenfeld, Gil

Metal working

Plural diverse manufacturing apparatus including means for...

Common reciprocating support for spaced tools

408 3, 408 13, 408 15, 408 16, 408 43, 408 46, B23Q 3157, B23B 3924

Patent

active

045960674

ABSTRACT:
The drilling machine comprises a pair of cross slides formed of two parallelepiped blocks of granite connected as a T above a horizontally stationary board carrying table. The transverse block carries two operating heads and, by means of pneumostatic bearings, guides their movement along the X-axis. The other block is guided by the machine frame by means of other pneumostatic bearings. Each head carries a spindle operable to lock and unlock the tool to permit automatic tool replacement from a corresponding tool magazine with provision for checking the integrity of the engaged tool. One of the heads can be disengaged from the X-axis servomotor and connected to the other one at a predetermined distance. Two series of equal printed circuit supports can be drilled simultaneously by using a single package of boards to be cut after the drilling or the etching. Tool changing and tool integrity checking operations can be effected simultaneously for the two operating heads.

REFERENCES:
patent: 2859643 (1958-11-01), McIver
patent: 3030744 (1962-04-01), Mueller
patent: 3171327 (1965-03-01), Williamson
patent: 3663114 (1972-05-01), Welsh et al.
patent: 3783741 (1974-01-01), Schadebrodt et al.
patent: 4000954 (1977-01-01), Patel
patent: 4043700 (1977-08-01), Singer
patent: 4185376 (1980-01-01), Johnstone
patent: 4280775 (1981-07-01), Wood
patent: 4326824 (1982-04-01), Lasermann et al.
patent: 4397074 (1983-08-01), Thornton et al.

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