EP 3475028 A1 20190501 - RELEASE UNIT FOR A MACHINE TOOL SPINDLE
Title (en)
RELEASE UNIT FOR A MACHINE TOOL SPINDLE
Title (de)
LÖSEEINHEIT FÜR EINE WERKZEUGMASCHINENSPINDEL
Title (fr)
UNITÉ DE LIBÉRATION POUR UNE BROCHE DE MACHINE-OUTIL
Publication
Application
Priority
- DE 102016116927 A 20160909
- EP 2017069712 W 20170803
Abstract (en)
[origin: WO2018046202A1] The invention relates to a release unit (1) for a machine tool spindle, in particular a motor spindle, for releasing a tool clamp, wherein the release unit (1) comprises at least one adjustment element (16) that can be adjusted in a linear manner along an adjustment path (H) for actuating the tool clamp, which reduces the construction and/or operational output. According to the invention, this is achieved in that the release unit (1) is designed as an electric motor (2) having an electromagnetic drive system (8, 10) and having a hollow-cylindrical rotor shaft (9) rotating about an axis of rotation (14), in that the linearly adjustable adjustment element (16) is designed as a spindle element (16) of a conversion unit (13) for converting the rotation of the electric motor (2) into a linear movement (H), and in that the rotor shaft (9) is designed as a spindle nut (9) of the conversion unit (13) rotating about the axis of rotation (14).
IPC 8 full level
B23B 31/26 (2006.01); B23Q 3/12 (2006.01); F16C 35/12 (2006.01)
CPC (source: EP US)
B23B 31/003 (2013.01 - US); B23B 31/261 (2013.01 - EP US); B23B 31/28 (2013.01 - US); F16C 35/10 (2013.01 - EP US); F16C 35/12 (2013.01 - EP US); B23B 2260/008 (2013.01 - EP US); B23B 2260/0082 (2013.01 - US); B23B 2260/062 (2013.01 - EP US); F16C 21/00 (2013.01 - EP US)
Citation (search report)
See references of WO 2018046202A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018046202 A1 20180315; CN 109689285 A 20190426; DE 102016116927 A1 20180315; EP 3475028 A1 20190501; TW 201815496 A 20180501; US 2019210118 A1 20190711
DOCDB simple family (application)
EP 2017069712 W 20170803; CN 201780055816 A 20170803; DE 102016116927 A 20160909; EP 17748753 A 20170803; TW 106127971 A 20170817; US 201916289961 A 20190301