Chuck arrangement comprising a turnable t-slot nut provided with threaded holes and a method for operating the same
AssigneeM.P.C.-System AB
InventorJoel JÖNSSON
Life of this patent
Estimating the term…
Abstract
Chuck arrangement (100) having at least two chuck jaws (130) for clamping a workpiece (W), comprising radial tracks (120) for t-slot nuts (150) arranged to fasten a first chuck jaw part (132) to the track (120). In some embodiments, both ends (151, 153) of the t-slot nut (150) are arranged to be positioned at a defined radial distance (157) from the radial inner end (121) of the track (120), and internally threaded holes (155) of the t-slot nut (150) are asymmetrically distributed along a radial (R) length of the t-slot nut (150). In some embodiments, the number of internally threaded holes (155) in the t-slot nut (150) is at least three. The invention also relates to a kit of parts and to a method.
Claims24
A chuck arrangement associated with a radial direction, an axial direction and an angular direction, the chuck arrangement being arranged to rotate in the angular direction about a central axial axis,
- the chuck arrangement comprising at least two chuck jaws, each arranged to, in an assembled state of the chuck arrangement, be radially displaceable into a respective clamping position to apply a radial clamping force to a workpiece being held by the chuck arrangement,
- the chuck arrangement further comprising radial tracks, each arranged to receive and accommodate a respective one of the chuck jaws so that the chuck jaw can be radially adjustable, each track having a radial inner end;
- wherein:
- each chuck jaw comprises a respective t-slot nut and a first chuck jaw part,
- the t-slot nut has a first radial end and a second radial end, the t-slot nut further being arranged to move along the radial track and to radially fix the first chuck jaw part in relation to the track, the t-slot nut comprising internally threaded holes;
- the first chuck jaw part comprises at least one through hole;
- the first chuck jaw part is arranged to be fixed to the track by inserting at least one fixing screw through the through hole, into one of the internally threaded holes and threadedly engage with the internally threaded hole in question, thereby pulling together the first chuck jaw part and the t-slot nut,
- both the first radial end of the t-slot nut and, after turning the t-slot nut 180°, the second radial end of the t-slot nut is arranged to be positioned at a defined radial distance from the radial inner end of the track,
- the internally threaded holes are distributed along a radial length of the t-slot nut so that a collection of radial distances associated with at least two of the internally threaded holes is distributed in the sense that no two such radial distances are the same, the collection of radial distances comprising a respective radial distance from the radial inner end of the track to a respective central axis of each of the internally threaded holes in question for both when the first radial end and second radial end is positioned at the defined distance from the radial inner end of the track.
-4. (canceled)
(canceled)
A chuck arrangement associated with a radial direction, an axial direction and an angular direction, the chuck arrangement being arranged to rotate in the angular direction about a central axial axis,
- the chuck arrangement comprising at least two chuck jaws, each arranged to, in an assembled state of the chuck arrangement, be radially displaceable into a respective clamping position to apply a radial clamping force to a workpiece being held by the chuck arrangement,
- the chuck arrangement further comprising radial tracks, each arranged to receive and accommodate a respective one of the chuck jaws so that the chuck jaw can be radially adjustable, each track having a radial inner end;
- wherein:
- each chuck jaw comprises a respective t-slot nut and a first chuck jaw part,
- the t-slot nut has a first radial end and a second radial end, the t-slot nut further being arranged to move along the radial track and to radially fix the first chuck jaw part in relation to the track, the t-slot nut comprising internally threaded holes;
- the first chuck jaw part comprises at least one through hole;
- the first chuck jaw part is arranged to be fixed to the track by inserting at least one fixing screw through the through hole, into one of the internally threaded holes and threadedly engage with the internally threaded hole in question, thereby pulling together the first chuck jaw part and the t-slot nut, and
- the number of internally threaded holes in the t-slot nut is at least three, so that the first chuck jaw part can be fastened to the t-slot nut in at least two radially different positions using at least two through holes in the first chuck jaw part for each such radial fastening position.
-11. (canceled)
Dependencies are inferred from the claim text.