EP 4132735 A1 20230215 - HIGH-SPEED SPINDLE WITH FORCED MECHANICAL VIBRATORY ASSISTANCE
Title (en)
HIGH-SPEED SPINDLE WITH FORCED MECHANICAL VIBRATORY ASSISTANCE
Title (de)
HOCHGESCHWINDIGKEITSSPINDEL MIT MECHANISCHER ZWANGSVIBRATIONSUNTERSTÜTZUNG
Title (fr)
BROCHE HAUTE VITESSE A ASSISTANCE VIBRATOIRE MECANIQUE FORCEE
Publication
Application
Priority
- FR 2003470 A 20200407
- EP 2021058763 W 20210401
Abstract (en)
[origin: CA3174649A1] Disclosed is a spindle (1) for a machine tool, comprising - a housing (10), - a shaft (20) for driving a cutting tool, rotatably mounted inside the housing with a possibility of axial movement relative to the housing, - a single ball (200), axially interposed between a bearing ring (202) fixed relative to the housing and a bearing ring (201) movable with the shaft, one of these rolling rings defining an inclined bearing surface (231) that is not perpendicular to the axis of rotation of the shaft, so that the rotation of the ball generates an axial oscillation of the shaft.
IPC 8 full level
B23B 47/34 (2006.01)
CPC (source: EP US)
B23B 47/34 (2013.01 - EP US); B23B 2220/36 (2013.01 - EP US); B23B 2260/008 (2013.01 - EP US)
Citation (search report)
See references of WO 2021204709A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3108863 A1 20211008; FR 3108863 B1 20220729; CA 3174649 A1 20211014; CN 115427177 A 20221202; EP 4132735 A1 20230215; JP 2023521369 A 20230524; US 2023150038 A1 20230518; WO 2021204709 A1 20211014
DOCDB simple family (application)
FR 2003470 A 20200407; CA 3174649 A 20210401; CN 202180025108 A 20210401; EP 2021058763 W 20210401; EP 21716728 A 20210401; JP 2022561454 A 20210401; US 202117916281 A 20210401