Spindle liner arrangement for a machine tool
AssigneeRapid Liners AB
InventorPontus SÄFSTRÖM
Life of this patent
Estimating the term…
Abstract
Quick-change spindle liner for a lathe comprising: a mounting disc arranged to be fixed at the feed end of the spindle with a plurality of first fixation holes; a clamping disc with a plurality of second fixation holes; a tubular liner with a radial flange member with third fixation holes exhibiting a widened portion and narrowed portion; a spring element arranged between the mounting disc and the clamping disc; and a plurality of elongate fixation members having a head at one end and being arranged to: threadedly engage a respective first fixation hole and extend through a respective second fixation hole.
Claims7
A spindle liner arrangement for a machine tool such as a lathe, which machine tool comprises a tubular spindle exhibiting a longitudinal bore and a feed end for inserting and feeding a rod-shaped workpiece into the bore, which spindle liner arrangement comprises;
- a mounting disc arranged to be fixed at the feed end of the spindle which mounting disc exhibits a central mounting disc through opening arranged to lie concentric with the bore when mounted and a plurality of first fixation holes distributed around the mounting disc through opening,
- a clamping disc exhibiting a central clamping disc through opening with an inner clamping disc diameter arranged to lie concentric with the bore when mounted, and a plurality of through penetrating second fixation holes arranged around the clamping disc through opening,
- a tubular liner comprising a first longitudinal portion arranged to be received in the bore, a second longitudinal portion arranged to extend longitudinally out from the feed end when mounted and flange member which extends radially outwards from the second portion, wherein
- the flange member exhibits a plurality of through penetrating third fixation holes distributed around the second portion, each third fixation hole being elongate in the circumferential direction exhibiting a widened portion with a first cross-sectional area and narrowed portion with a second cross-sectional area being smaller than said first cross-sectional area, and wherein the spindle liner arrangement further comprises;
- at least one spring element arranged between the mounting disc and the clamping disc for urging the clamping disc longitudinally away from the mounting disc, and
- a plurality of elongate fixation members, each fixation member comprising a first end arranged to be threadedly engaged with a respective first fixation hole, an intermediate portion arranged to extend through a respective second fixation hole and a second end comprising a head having a third cross sectional area, which third cross-sectional area is smaller than said first cross-sectional area and larger than said second cross-sectional area.
Dependencies are inferred from the claim text.