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US 2019/0210118 A1Published application
Release unit for a machine tool spindle
AssigneeFranz Kessler GmbH
InventorsJoachim Van Sprang, Michael Bergbaur, Matthias Scheffold
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AssigneeFranz Kessler GmbH
InventorsJoachim Van Sprang, Michael Bergbaur, Matthias Scheffold
Estimating the term…
A release unit for a machine tool spindle, in particular motor spindle, for releasing a tool clamp, wherein the release unit comprises at least one adjustment element which can be linearly adjusted along an adjustment path for actuating the tool clamp, which release unit reduces the structural and/or economic complexity. This is achieved according to the invention in that the release unit is constructed as an electric motor which comprises an electromagnetic drive system having a hollow-cylindrical rotor shaft which rotates about a rotation axis, in that the linearly adjustable adjustment element is constructed as a spindle element of a conversion unit for converting the rotation of the electric motor into a linear adjustment and in that the rotor shaft is constructed as a spindle nut of the conversion unit which rotates about the rotation axis.
A release unit for a machine tool spindle for releasing a tool clamp, wherein the release unit comprises at least one adjustment element which can be linearly adjusted along an adjustment path for actuating the tool clamp, wherein the release unit is constructed as an electric motor which comprises an electromagnetic drive system having a hollow-cylindrical rotor shaft which rotates about a rotation axis, wherein the linearly adjustable adjustment element is constructed as a spindle element of a conversion unit for converting the rotation of the electric motor into a linear adjustment and wherein the rotor shaft is constructed as a spindle nut of the conversion unit which rotates about the rotation axis.
Dependencies are inferred from the claim text.