DEEP HOLE DRILLING TOOL, APPARATUS HAVING THE SAME, AND METHOD FOR DRILLING DEEP HOLE

A drilling tool for forming a second hole which is arranged in parallel with a first hole formed along a longitudinal direction of a workpiece and overlaps at least partially with the first hole includes a guide bar unit for being inserted into the first hole to move along the first hole in an event...

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Bibliographic Details
Main Authors KIM, SUNG YEOUL, BAEK, DONG KI, PARK, CHEONG WOON, KIM, SEUNG HO, SONG, HUNG SUK
Format Patent
LanguageEnglish
French
Published 12.06.2008
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Summary:A drilling tool for forming a second hole which is arranged in parallel with a first hole formed along a longitudinal direction of a workpiece and overlaps at least partially with the first hole includes a guide bar unit for being inserted into the first hole to move along the first hole in an event of drilling the second hole; and a drill arranged at the guide bar unit to be rotatable around a central axis of the second hole, the drill having a cutter for drilling the second hole, arranged at one end thereof, wherein the guide bar unit guides a movement of the drill in the longitudinal direction of the workpiece. L'invention concerne un outil de perçage destiné à former un second trou qui est disposé en parallèle à un premier trou formé le long d'une direction longitudinale d'une pièce à travailler et qui chevauche au moins partiellement le premier trou, l'outil de perçage comprenant une unité de barre de guidage destinée à être introduite dans le premier trou pour se déplacer le long du premier trou dans le cas d'un perçage du second trou ; et un foret disposé au niveau de l'unité de barre de guidage pour pouvoir tourner autour d'un axe central du second trou, le foret ayant un couteau pour percer le second trou, disposé à une extrémité de celui-ci, l'unité de barre de guidage guidant un mouvement du foret dans la direction longitudinale de la pièce à travailler.
Bibliography:Application Number: WO2007KR02166