Method for machining by lathing, and lathe
AssigneeJ.G. Weisser Söhne GmbH & Co. KG
InventorsThorsten Rettich, Reiner Jörg
Life of this patent
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Abstract
A lathe (1) in which the work piece (16) to be lathed with a tool (18) is clamped with the longitudinal axis of the work piece parallel to the rotational axis (29) of the rotating clamping device (15) such that the rotational axis (29) does not intersect the work piece (16), and between two machining steps of the machining process by lathing, a position of the work piece (16) in the clamping device (15) is changed such that surface areas (30, 36) not previously machined are moved into the working area of the tool (18).
Claims29
A method for machining by lathing at least two elongate workpieces (16) having a longitudinal axis, comprising:
- chucking said at least two workpieces (16) in a rotating fixture (15) and rotating the at least two workpieces at a machining speed about an axis of rotation (29), feeding a turning tool (18) which performs the lathing transversely with respect to the axis of rotation (29), with a cutting speed of lathing resulting from the rotation of the workpieces (16) in relation to the turning tool (18), the workpieces (16) are chucked with their longitudinal axes parallel to the axis of rotation (29), but eccentrically and at a radial distance from the axis of rotation (29), in the fixture (15), with the axis of rotation (29) not passing through the workpieces (16), and the turning tool (18) is fed radially from outside transversely with respect to the axis of rotation (29), the workpieces (16) orbiting about the axis of rotation (29) on an imaginary cylinder for forming a non-round profile, and an orbiting speed corresponds to the rotational speed of the workpieces, and, during an orbiting movement about the central axis of rotation (29), the workpieces execute a revolution, and always a same respective outer face of the respective workpieces (16) points radially outward during lathing, while the workpieces (16) are then held immovable in relation to the fixture (15), wherein the at least two workpieces (16) are lathed in a common operation.
A lathe (1) for non-round profiles, comprising a fixture (15) driven by a rotary spindle and a tool carrier (23) capable of being fed transversely to an axis of rotation (29) of the rotary spindle and having a turning tool (18), the fixture (15) has an arrangement of at least two workpiece receptacles each being arranged arranged eccentrically at a radial distance from the axis of rotation (29) of the rotary spindle in a rotationally symmetrical position with respect to one another, and a synchronizing device is provided, which synchronizes a feed movement of the tool carrier (23) with the rotation of the rotary spindle.
A lathe (1) for non-round profiles, comprising a fixture (15) driven by a rotary spindle and a tool carrier (23) capable of being fed transversely to an axis of rotation (29) of the rotary spindle and having a turning tool (18), the fixture (15) has a workpiece receptacle (21) arranged eccentrically at a radial distance from the axis of rotation (29) of the rotary spindle, and a synchronizing device is provided, which synchronizes a feed movement of the tool carrier (23) with the rotation of the rotary spindle, the fixture (15) has an unbalance compensation arrangement (27) for a chucked workpiece (16), and the unbalance compensation arrangement (27) is formed by a further chucked workpiece (16).
Dependencies are inferred from the claim text.