Metal cutting machining device, with massive block and sliding column and machine integrating this device
OwnerJean-Michel Delacouinventor
Life of this patent
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Abstract
A device for machining a part by metal cutting comprising a massive block in a bore of which is located a sliding column guided in a front bearing and a rear bearing, at least the front bearing and the section of the column sliding therein being continuously convex in cross-section with three lobes distributed at 120° about a central axis. The front and rear bearings are hydrostatic journal bearings. The column supports a sliding block on which is mounted a slide in which is incorporated a turret head for dispensing cutting tools.
Claims9
Device for machining a workpiece by removing chips, comprising a chassis and a positional and longitudinal-displacement means, wherein the chassis is a massive block (1) comprising a first bore in which there is housed a sliding tool-holder column (3) guided in a front bearing (8) and a rear bearing (9), at least the front bearing (8) and that section (27) of the column (3) that slides therein being of continuously convex cross section with three lobes 120° apart about a central axis, and a second bore the axis of which is parallel to the axis of the first bore, in which there is positioned a slidable workpiece-holder spindle (2), having an incorporated motor, the column (3) being able to move relative to the spindle (2) and the workpiece being held by the spindle and being machined by a tool held by the column (3) during a machining operation to obtain an autonomous device.
Dependencies are inferred from the claim text.