Komet Group Gmbh

Nagel Maschinen- Und Werkzeugfabrik Gmbh

Erkan Hodza

Benno Spors

Jacek Kruszynski

Uwe Kretzschmann

Juergen Fronius

Henry Schuett

Roman Eigenmann

Niklas Kramer

Henry Schütt

Herbert Rauscher

Jürgen Fronius

A reaming element for a reaming tool capable of being driven to rotate about an axis of rotation for fine machining of a prefabricated bore, the reaming element having a front main cutting edge and a secondary cutting edge adjoining the radially outward end of the main cutting edge, wherein the main cutting edge and the secondary cutting edge delimit a chip-removing surface, and a polished chamfer, which forms a support zone for guidance on the wall of the bore, is formed between the secondary cutting edge and the rear flank face thereof. The support zone is smaller than the polished chamfer and is kept a lateral distance away from the secondary cutting edge by an intermediate part, more particularly, a recessed intermediate part of the polished chamfer.

Reaming element, reaming tool and method for the production thereof

A reaming tool, having a rotationally drivable main body () and at least one cutting body () fastened thereto. The at least one cutting body has at least one reaming blade () at the edge of a rake face (). A chip-forming step () and/or chip-breaking elements () are formed in the rake face () and the reaming blade () has a ground cutting edge ().

Reaming tool and method for the production thereof

The main body () of a machine tool () comprises a plate seat () having a plate element () arranged thereon. The plate element () has at least one plate edge (), which protrudes freely to the outside over the plate seat () and rests against a bottom support surface of the plate seat (). The plate element () can be fixed to the plate seat () by way of a bolt () extending through a bore hole in the plate element (). A first brace () for the plate element () is provided on the plate seat (), said brace having a support surface () against which the plate element () rests non-positively with a lateral plate surface. A further brace () is designed on the plate seat () for a lateral plate surface of the plate element () to rest against non-positively. In order to adjust the plate edge () of the plate element (), an adjustment device () is associated with at least one brace () and enables the brace () to be raised and lowered with respect to the bottom support surface of the plate seat (). A linear guide () is provided for said at least one brace (), said guide absorbing the forces and torque occurring during the adjustment of the plate element () and introducing them into the main body () of the machine tool ().

Machine tool having adjustable plate element

A rotating machine tool has a base with a rotating axis, at least one pocket formed in the base and at least one blade support holding a cutting plate. Two side surfaces of the blade support sit against a side support surface, respectively, the blade support side surfaces making an angle between them, and the base of the blade support sits against a base support surface of the pocket, the blade support being clamped in the pocket removably by way of a clamp element. The cutting plate protrudes over the blade support with an effective blade and over the base outward.

Machine tool with adjustable cutting insert

The invention relates to a rotating cutting tool, in particular a boring tool for use in machine tools. The cutting tool comprises at least one cutting insert, designed as an indexable insert, that has an active main blade located near a corner of the insert, the outer end of said blade defining a circular flight path radius (R) as the blade rotates, said blade penetrating into a work piece at a pre-determined cutting depth (t) near a pre-formed round hole. Also provided is a secondary blade that is disposed opposite to an advancing direction and that aligns with the outermost end of the main blade, the entire length of said blade having a smaller radius than the circular flight path radius (R) of the main blade, wherein a secondary blade free surface aligns with the secondary blade opposite to the direction of rotation. A unique characteristic of the invention is that the secondary blade free surface comprises a support part disposed at a distance from the secondary blade, the peripheral radius of said part being larger than the circular flight path radius R of the active main blade by an overshoot amount (Y).

Growing community of inventors

Asperg, Germany

Erkan Hodza