Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SPINDLE UNIT FOR A MACHINE TOOL FOR FINE-MACHINING WORKPIECES THAT HAVE GROOVED-SHAPED PROFILES
Document Type and Number:
WIPO Patent Application WO/2016/202598
Kind Code:
A3
Abstract:
A spindle unit for a machine tool for fine-machining workpieces that have groove-shaped profiles, such as, for example, toothings, has a rotatably mounted spindle shaft (2). Said spindle shaft is subdivided in the axial direction (AR), one behind the other, into a fastening portion (A) for fastening a tool (4) or a workpiece to be machined, a first bearing portion (B), a force transmission portion (C), and a second bearing portion (D). A drive unit (5) serves to drive the spindle shaft (2) by way of force transmission onto the force transmission portion (C). A first and a second bearing point (13, 14) are designed to bear the spindle shaft (2) in the first bearing section (B), and a third bearing point (15) serves to mount the spindle shaft (2) on the second bearing portion (D). The first and the second bearing points (13, 14) each have one or more hydrostatic bearings and are designed to receive radial and axial forces. The third bearing point (15) has one or more hydrostatic and/or hydrodynamic bearings and is designed to receive radial forces.

Inventors:
JAKOB, Ronald (Madetswilerstrasse 4, 8332 Russikon, 8332, CH)
HUG, Theo (Rietstrasse 5, 8360 Wallenwil, 8360, CH)
SENNHAUSER, Erwin (Zielackerstrasse 6, 8451 Kleinandelfingen, 8451, CH)
Application Number:
EP2016/062487
Publication Date:
December 22, 2016
Filing Date:
June 02, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
REISHAUER AG (Industriestrasse 36, 8304 Wallisellen, 8304, CH)
International Classes:
B23Q1/70; B23Q1/38; B24B41/04; F16C32/06; F16C35/10
Foreign References:
EP2278181A22011-01-26
JPS62148102A1987-07-02
EP0860232A21998-08-26
EP1088618A22001-04-04
EP0868968A21998-10-07
DE8632653U11989-08-17
FR1305034A1962-09-28
GB1314067A1973-04-18
EP2676765A12013-12-25
Attorney, Agent or Firm:
RUTZ, Andrea (Postfach 1772, 8027 Z├╝rich, 8027, CH)
Download PDF: