Machining unit for a program-controlled machine tool
AssigneeDeckel Maho Pfronten GmbH
InventorHans Veittinger
Life of this patent
Estimating the term…
Abstract
A machining unit for a program-controlled machine tool having a measuring and monitoring device for monitoring the position and condition of a tool shaft in the tool holder. This measuring and monitoring device includes a plurality of axial sensors and radial sensors and an evaluating unit for the measurement results detected by the sensors. An outer ring is releasably fastened to the spindle housing and contains an electronic transmission element and terminals for energy and data cables. A rotor is assigned to this stationary outer ring and contains the sensors and is coupled to the outer ring for the non-contact data transmission. The rotor is releasably fastened to the front end face of the spindle by bolted connections.
Claims9
A machining unit for a program-controlled machine tool having control electronics, a spindle housing, a work spindle rotatably mounted in said spindle housing and including a rotary drive, a tool support in said work spindle, said tool support including clamping devices for the releasable positioning of a tool shaft in a tool holder, the machining unit comprising:
- a measuring device for monitoring the position and condition of a tool shaft in the tool holder, said measuring device comprising:
- an outer ring releasably mounted to said spindle housing;
- an annular rotor releasably mounted to said work spindle;
- a sensor system comprising axial and radial sensors on said annular rotor, said sensors having sensing measurements results;
- and
- an electric evaluating unit coupled to said sensors for receiving and evaluating the measurement results from said sensors.
A measuring device for monitoring the position and condition of a tool shaft in it tool holder of a machining unit for a program-controlled machine tool having control electronics, a spindle housing, a work spindle rotatably mounted in said spindle housing and including a rotary drive, a tool support in said work spindle, said tool support including clamping devices for the releasable positioning of the tool shaft in the tool holder, the measuring device comprising:
- an outer ring releasably mountable to said spindle housing;
- an annular rotor releasably mountable to said work spindle;
- a sensor system comprising axial and radial sensors on said annular rotor, said sensors having sensing measurement results;
- and
- an electronic evaluating unit coupled to said sensors for receiving and evaluating the measurement results from said sensors.
Dependencies are inferred from the claim text.