Numerically controlled machine tool comprising a multi-spindle turret and tool gripping device
AssigneeETA SA Manufacture Horlogere Suisse
InventorsPatric PHAM, Christophe DONZÉ
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AssigneeETA SA Manufacture Horlogere Suisse
InventorsPatric PHAM, Christophe DONZÉ
Estimating the term…
A numerically controlled machine tool including a multi-spindle turret provided with a body extending along an axis A-A between a first end by which it is fastened to a frame of the machine tool and a second end at which it comprises a rotatable head, the head comprising at least two toolholding spindles, each intended to engagingly receive a cutting tool, the spindles occupying, depending on the angular position of the head, a working position in which they are intended to carry out a machining operation on a workpiece held in position in a fixture, or a standby position in which they are withdrawn from said workpiece, each of said spindles being configured to be controlled independently of the other in order to immobilise or rotatably drive the tool that it carries, regardless of the position occupied thereby.
A numerically controlled machine tool (10), comprising a multi-spindle turret (20) provided with a body (21) extending along an axis A-A between a first end by which it is fastened to a frame (11) of the machine tool (10) and a second end at which it comprises a rotatable head (23), the head (23) comprising at least two tool-holding spindles (24, 24′, 24″), each intended to engagingly receive a cutting tool (25, 25′, 25″), the spindles (24, 24′, 24″) occupying, depending on the angular position of the head (23), a working position in which they are intended to carry out a machining operation on a workpiece held in position in a fixture, or a standby position in which they are withdrawn from said workpiece, each of said spindles (24, 24′, 24″) being configured to be controlled independently of the other in order to immobilise or rotatably drive the tool (25, 25′, 25″) that it carries, regardless of the position occupied thereby, the machine tool (10) further comprising a tool gripping device (30) configured to interact with a spindle (24′, 24″) in a standby position in order to extract a tool (25′, 25″) carried by said spindle (24′, 24″) for the storage thereof, and in order to insert a replacement tool (25′″) into said spindle (24′, 24″), the gripping device (30) comprising a tool magazine (34) held in a cantilevered position by a support structure (31) fastened to the body (21) of the turret (20), the magazine (34) comprising a storage barrel (340) with a degree of rotational freedom about an axis C-C.
Dependencies are inferred from the claim text.