Workpiece holding device
AssigneeAktiebolaget Skf
InventorsGerhard Wagner, Fred Menig, Martina Sticht, Michael Wendel
Life of this patent
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Abstract
A workpiece holding device for holding a workpiece in a heat treatment system while the workpiece undergoes a thermal expansion and/or contraction includes at least two clamping units configured to apply a radial and/or an axial clamping force to the workpiece to hold the workpiece in the workpiece holding device in a predefined position and a drive unit configured to rotate the workpiece in the workpiece holding device. The at least two clamping units may be configured to adjust their position relative to the holding device to maintain the clamping force during the thermal expansion and/or contraction of the workpiece.
Claims17
A workpiece holding device for holding a workpiece in a heat treatment system, the heat treatment system including an inductor, while the workpiece undergoes a thermal expansion and/or contraction, the workpiece holding device comprising:
- at least two clamping units configured to apply a radial and/or an axial clamping force to the workpiece to hold the workpiece in the workpiece holding device in a predefined position, and
- a drive unit configured to rotate the workpiece relative to the inductor,
- wherein the drive unit comprises a friction wheel or a friction roller configured to abut against the workpiece and frictionally engage the workpiece in order to rotate the workpiece.
A workpiece holding device for holding a workpiece in a heat treatment system while the workpiece undergoes a thermal expansion and/or contraction, the workpiece holding device comprising:
- a main body portion,
- at least three support cylinders extending from the main body portion and configured to axially support the workpiece, and
- at least three clamping cylinders configured to apply a radial clamping force to the workpiece to hold the workpiece in the main body portion,
- wherein a first one of the at least three clamping cylinders is configured to be actively driven by a drive unit to rotate the workpiece in the main body portion and all other ones of the at least three clamping cylinders are passively driven by contact with the workpiece, and
- wherein the at least three clamping cylinders are configured to move to maintain the radial clamping force during the thermal expansion and/or contraction of the workpiece.
Dependencies are inferred from the claim text.