Tool, method, and apparatus for removing burrs from bores

US7290965B2 · kind B2 · utility

Assignee

• Jörg Gühring · DE

Inventors

• Gilbert Gaiser · Sigmaringen, DE
• Harald Hebisch · Sigmaringen, DE

Key dates

• Filing date: May 16, 2003
• Grant date: Nov 6, 2007
• Expiry date: Dec 13, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T409/303808
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A preferably rotationally driven tool is specified for the deburring of openings, such as for example bores that open laterally into an essentially cylindrical recess. The tool has a cutting head that is seated on a shaft and that has at least one cutting edge that extends, at least in segments, in the axial direction. So that the deburring can be carried out reliably and with the lowest possible expense, a radial force-producing device is integrated into the tool, for example in the form of at least one internally situated flow medium channel, from which at least one branch channel goes out that opens in the area of the cutting head or in the vicinity thereof, preferably at a peripheral distance to the at least one cutting edge, in the external peripheral surface thereof. Because the diameter of the cutting head is selected such that it can be introduced into the recess with radial play, the radial force produced either upon rotation of the tool or through the feeding in of a flow medium under pressure has the result that the cutting head is elastically deflected radially, through which the inner surface of the recess is gently processed, and thereby enabling reliable execution of…