Machine for boring a plate workpiece

US4573835A · kind A · utility

Assignee

• Flachglas Aktiengesellschaft · DE

Inventors

• Rudolf Eckardt · Wesel, DE
• Horst Frielingsdorf · Remscheid, DE

Key dates

• Filing date: Sep 10, 1981
• Grant date: Mar 4, 1986
• Expiry date: Sep 10, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T408/385
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

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.