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AssigneeWilhelm Hegenscheidt Gesellschaft mbH
InventorsTheodor Dombrowski, Hartwig Klosterhalfen
Estimating the term…
Chip separation is assured while turning work pieces, by causing an oscillating movement of the turning or lathe tool during the work piece rotation. The tool oscillation is controlled in response to the work piece rotation and so that the tool oscillates periodically along or rather relative to a line defined by the feed adavance vectors of the tool movement . The oscillation amplitude corresponds approximately to half the effective feed advance path for each work piece revolution. The wave length of the oscillation has a magnitude such that it itself or an integral multiple thereof, plus a half wave length, is equal to the momentary respective work piece circumference at the instantaneous point of contact between the tool and the work piece. Several ways are possible for imparting an oscillating movement to the tool support or tool supports.
An apparatus for turning a work piece, comprising work drive means for rotatably supporting a work piece, tool means for machining a work piece, movable tool support means for carrying said tool means in two directions perpendicular to each other, controllable drive means operatively connected to said tool support means for controlling the movement of said tool support means, and drive control means connected to said controllable drive means for causing said tool support means to follow oscillation movements in said perpendicular directions having a certain amplitude and frequency, said oscillation movements resulting in a tool oscillation movement along a feed advance line generated by feed advance vectors forming a work piece contour, said drive control means comprising means for adjusting said amplitude and said frequency of said oscillation movements of said tool support means for assuring chip breakage.
Dependencies are inferred from the claim text.