Komet Group Gmbh

Komet Praezisionswerkzeuge Robert Breuning Gmbh

Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh

Komet Praezisionwerkzeuge Robert Breuning Gmbh

Komet Praezisionswerkzenge Robert Breuning Gmbh

Gerhard Stolz

Gerhard Scheer

Benno Spors

Wolfgang Bierl

Werner Muendlein

Waldemar Dubs

Hendrik Nitzsche

Hans Haidinger

Helmut Reccius

Juergen Fronius

Heiko Graf

Roland Hoerl

Ewald Hasselkuss

Frank Stahl

Rico Schneider

Jürgen Fronius

Roland Hörl

The invention relates to a drilling tool for machine tools has a drill body, a cutting head arranged on the front face of the drill body and a shaft arranged at the end thereof, wherein the drill body has two chip flutes, which are delimited at their flanks by ribs and a first chip flute of which is spirally curved. A second chip flute is not spiraled or is spirally curved with a pitch differing from the first chip flute, preferably running in the same direction of rotation.

Drilling tool for machine tools and method for the production thereof

A device for connecting two components (), for example two tool parts. The first component () has a cylindrical locating pin () and an annular face () projecting radially beyond this locating pin (), while the second component () has a cylindrical locating bore () for receiving the locating pin () and an annular face () surrounding the locating bore (). Also provided is a clamping mechanism (), which ensures during the clamping operation that the locating pin () is drawn into the locating bore () and at the same time the annular faces () are pressed against one another.

Device for connecting two components

The invention relates to a machining center for work piece machining. The machining center comprises a machine frame, a machine spindle driven by a motor and rotatably arranged on the machine frame, and a group of machine tools that can be exchanged on the machine spindle. The machine tools comprise a coupling shaft that is compatible with a holder of the machine spindle. Furthermore, a rotary transmitter for electric energy is provided, having a stator fixed to the machine in a stationary manner and a rotor rotating along with the machine spindle. It is claimed as novel that the rotary transmitter comprises at least two transmission paths for electric energy which can be selected according to the electric power to be transmitted and the rotational speed of the spindle to be set and which can be activated in the coupled state of the machine tool. At least one first transmission path between the stator and rotor is designed in a non-contact way, while at least one second transmission path between the stator and rotor is provided with contacting contacts. With said measures, complete machining of the workpieces can be made possible when clamped in the machining center.

Machining center having rotary transmitter for electric energy

A drilling tool for machine tools has a drill body, a cutting head arranged on the front face of the drill body and a shaft arranged at the end thereof, wherein the drill body has two chip flutes, which are delimited at their flanks by ribs and a first chip flute of which is spirally curved. A second chip flute is not spiraled or is spirally curved with a pitch differing from the first chip flute, preferably running in the same direction of rotation.

A drilling tool for machine tools has a drill body and a cutting head arranged on the front face of the drill body. The drill body has at least two chip flutes, which are delimited at their flanks by ribs and at least one of which is spirally curved. Arranged in the ribs of the drill body are coolant channels, which have an outlet opening at the end of the drill body on the cutting head side. A special feature is that the outlet openings are arranged within each one of the chip flutes and communicate with one of the coolant channels arranged in the ribs by way of a straight channel endpiece.

Connector

The tensioning mechanism () comprises a clamp bolt (), arranged in a displaceable manner in a transverse bore () in the fitting plug () and two diametrically opposed retainers () in the second component () which engage with an axially facing internal or external cone against a complementary internal or external cone on the clamp bolt () and, during tensioning, are tensioned with the same in a wedge fashion. According to the invention, the clamp bolt () comprises a frustum-shaped external cone (), the base diameter of which is smaller than the diameter of the guide surface () thereof in the transverse bore ().

A clamping mechanism connects a tool head including a hollow tool shank with a clamping shank having a seat for receiving the tool shank. Each of the face ends of the clamping elements of the clamping mechanism are overlapped by at least one centering element. The centering elements are connected to each other by axially parallel links forming a centering cage that overlaps the clamping mechanism with axial play. The centering elements each lock into an axially central, cylindrical recess situated in the floor area of the clamping shank and the hollow tool shank.

Growing community of inventors

Ingersheim, Germany

Gerhard Stolz