Machine for boring a plate workpiece

Details Machine for boring a plate workpiece Machine for boring a plate workpiece

1981-09-10

1986-03-04

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

Machine including plural tools

Coaxial tools

408 51, 408 53, 51 80R, 51111R, B23B 4700

Patent

active

045738351

ABSTRACT:
A machine for boring a hole in a plate workpiece comprises a support, a lower clamp arm carried on this support and having an upper clamp surface adapted to support the workpiece, an upper clamp arm carried on the support and having a vertically displaceable lower clamp surface adapted to press the workpiece down against the upper clamp surface, a lower drill arm pivotal about a horizontal axis on the support and having an outer end provided with an upwardly directed boring tool, and an upper drill arm pivotal about a horizontal axis on the support and having an outer end provided with a downwardly directed boring tool. Respective motors in the support for the machine pivot the arms and rotate the tools.

REFERENCES:
patent: 1951093 (1934-03-01), Johnston
patent: 3015832 (1962-01-01), Zagar
patent: 3121769 (1964-02-01), Horn
patent: 3192801 (1965-07-01), Gingras
patent: 3568367 (1971-03-01), Myers
patent: 3813820 (1974-06-01), Highberg et al.
patent: 3976386 (1976-08-01), Marantette et al.

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