EP 3993930 A1 20220511 - HYDRAULIC EXPANSION CHUCK
Title (en)
HYDRAULIC EXPANSION CHUCK
Title (de)
HYDRODEHNSPANNFUTTER
Title (fr)
MANDRIN DE SERRAGE EXPANSIBLE HYDRAULIQUEMENT
Publication
Application
Priority
- DE 102019209684 A 20190702
- EP 2020066555 W 20200616
Abstract (en)
[origin: WO2021001140A1] The invention relates to a hydraulic expansion chuck comprising a main body (1) that extends along a rotational or longitudinal central axis (2) and is composed of a shaft part (20), for directly or indirectly coupling the hydraulic expansion chuck to a module of a modular tool system or to a machine spindle, and a clamping part (30), joined to the shaft part in a rotationally and axially fixed manner for receiving and clamping a shank tool. The shaft part comprises a receiving socket which extends towards the clamping part and has a central socket-opening in which a connection pin (31) of the clamping part, which pin extends towards the shaft part, is form-fittingly received. According to the invention, the clamping part comprises a stop which is radially offset from the connection pin and axially strikes the receiving socket.
IPC 8 full level
B23B 31/30 (2006.01); B23B 31/02 (2006.01); B23B 31/117 (2006.01); B33Y 80/00 (2015.01)
CPC (source: EP US)
B23B 31/028 (2013.01 - EP US); B23B 31/1178 (2013.01 - EP US); B23B 31/305 (2013.01 - EP US); B23B 2231/04 (2013.01 - EP); B23B 2231/36 (2013.01 - EP); B23B 2231/365 (2013.01 - EP); B23B 2240/16 (2013.01 - EP); B23B 2260/124 (2013.01 - EP); B33Y 80/00 (2014.12 - EP); Y10T 279/1216 (2015.01 - US); Y10T 279/3487 (2015.01 - US)
Citation (search report)
See references of WO 2021001140A1
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)
DE 102019209684 A1 20210107; EP 3993930 A1 20220511; US 2022152709 A1 20220519; WO 2021001140 A1 20210107
DOCDB simple family (application)
DE 102019209684 A 20190702; EP 2020066555 W 20200616; EP 20733273 A 20200616; US 202117645804 A 20211223