US 12,496,640 B2
Multi-part modular tool
Michael Jahncke, Freystadt (DE); Cornelius Müller, Schnaittach (DE); and Hans-Jörg Licha, Fürth (DE)
Assigned to FRANKEN GMBH & CO. KG FABRIK FÜR PRÄZISIONSWERKZEUGE, Rückersdorf (DE)
Filed by Franken GmbH & Co. KG Fabrik für Präzisionswerkzeuge, Rückersdorf (DE)
Filed on Mar. 14, 2022, as Appl. No. 17/694,187.
Claims priority of application No. 10 2021 106 246.2 (DE), filed on Mar. 15, 2021.
Prior Publication US 2022/0305566 A1, Sep. 29, 2022
Int. Cl. B23C 5/22 (2006.01); B23B 27/14 (2006.01); B23B 51/00 (2006.01)
CPC B23B 27/14 (2013.01) [B23B 51/0004 (2022.01); B23B 2231/365 (2013.01); B23C 2210/02 (2013.01); B23C 2250/12 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multi-part modular tool rotatable about a longitudinal tool axis (A), comprising:
a one-piece machining head;
a first holding element comprising a body elongated along the longitudinal tool axis (A), in which a passage extends along the longitudinal tool axis (A);
a second holding element which can extend or extends at least in sections in the passage of the first holding element;
wherein:
the machining head can be connected or is connected to the second holding element in such a way that the machining head is firmly fixed to the first holding element at least in the axial direction (A) and/or in the radial direction (R), and wherein the passage of the first holding element and the second holding element are adapted to one another in such a way that during a connection process in which the machining head is connected to the second holding element, the second holding element is movable or is moved relative to the first holding element,
the machining head has a cavity provided to receive a front end portion of the second holding element and wherein the machining head has an internal thread disposed within the cavity which is screwable or threaded onto an external thread provided at the front end portion,
an interface surface of the machining head and an interface surface of the front end region cooperate in such a way that the machining head is supported radially on the front end region, and wherein the interface surface of the machining head is an outer surface of the machining head and is disposed in the passage of the first holding element, and
the interface surface of the front end portion is an inner wall surface of the passage, and wherein the interface surface of the machining head is disposed between the inner wall surface and the second holding element.