Patent ID: 11883918
Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A measuring system for monitoring a spindle, comprising:
a cylindrical housing, which can be positioned in a spindle housing and can be mechanically connected thereto in a fixed manner;
a carrier ring, which is arranged within the cylindrical housing and mechanically connected thereto in a fixed manner;
three first sensors for measuring a radial displacement of the spindle; three second sensors for measuring an axial displacement of the spindle;
a first measuring ring having axial measuring surfaces; and
a second measuring ring having radial measuring surfaces, wherein
the first and second sensors are distributed over a circumference of the carrier ring and are mechanically connected to the carrier ring in a fixed manner;
the sensors are encapsulated with the carrier ring;
the measuring rings can be mechanically connected to the spindle in a fixed manner; and
the measuring rings are dimensioned in such a manner that they can be arranged within the carrier ring, and the measuring surfaces can be sensed by the sensors.