Drilling device

US5888031A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Manfred Buck · Jeffery Road, DE
• Juergen Veit · Echterdingen, DE
• Siegfried Fehrle · Echterdingen, DE
• Wilfried Kabatnik · Echterdingen, DE
• Vinzenz Haerle · Neckartenzlingen, DE
• Wolfgang Brost · Echterdingen, DE

Key dates

• Filing date: Apr 2, 1997
• Grant date: Mar 30, 1999
• Expiry date: Apr 2, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T408/91
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A drilling device for drilling with diamond tools has a drilling head having a drilling head housing, a drilling shaft rotatably supported in the housing, the drilling shaft having a tool side and being provided with a receiving opening for a drilling tool and extending from the tool side, the drilling shaft being formed as a hollow shaft over a part of its axial length, a drive having a rotary spindle, coupling means for connecting the drilling shaft with the rotary spindle of the drive, the drilling shaft being provided with at least one radial interruption for connecting an interior of the drilling shaft with an interior of the drilling head housing, the drilling head housing having an opening for selective connection of a supply conduit for a cooling/lubricating medium and a suction conduit for drilled material, and a clamping element for releasably connecting the drilling head with a clamping neck of the drive.