US 12,030,149 B2
Machine-tool unit having a tool sensor for sensing a cutting-edge load on a tool
Joachim Van Sprang, Ravensburg (DE); Harald Weing, Biberach (DE); and Daniel Weiß, Herbertingen (DE)
Assigned to Franz Kessler GmbH, Bad Buchau (DE)
Filed by FRANZ KESSLER GMBH, Bad Buchau (DE)
Filed on Jun. 2, 2021, as Appl. No. 17/303,545.
Claims priority of application No. 20179114 (EP), filed on Jun. 9, 2020.
Prior Publication US 2021/0379718 A1, Dec. 9, 2021
Int. Cl. B23Q 17/09 (2006.01); G01L 5/00 (2006.01); G05B 19/4065 (2006.01); B23B 49/00 (2006.01)
CPC B23Q 17/0966 (2013.01) [G01L 5/0076 (2013.01); G05B 19/4065 (2013.01); B23B 49/00 (2013.01); G05B 2219/37355 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A motor-driven machine-tool unit, having a stator unit and a rotor unit that is rotatable at least about an axis of rotation, the rotor unit comprising at least one tool receiving unit for receiving a tool, the tool receiving unit comprising a tool clamping device, which is adjustable in a longitudinal direction of the axis of rotation and to which a clamping force can be applied, for fixing and clamping a releasably fixable tool shank of the tool, a tool head of the tool comprising at least one individual cutting edge, there being at least one tool sensor provided for sensing a load on the tool, wherein the tool sensor is an individual-cutting-edge sensor for sensing a cutting-edge load on the individual cutting edge, and wherein the stator unit comprises at least the individual-cutting-edge sensor; and
wherein the individual-cutting-edge sensor is an individual-cutting-edge force sensor for sensing an application of force to the individual cutting edge.