Patent ID: 6279438
Filing Date: 2001-08-28
Classification: B23B,B23Q,Y10T

Abstract:
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.degree. 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.