Method and a device for the automatic replacement of a workpiece to be machined on a machine-tool
AssigneeMoteurs Leroy-Somer
InventorFrancois Peltier
Life of this patent
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Abstract
Two superposed and rigidly associated cradles are brought into position opposite a magazine for unmachined workpieces. One of the cradles is loaded by extracting an unmachined workpiece from the magazine. The cradles are moved towards the work axis, the unloading cradle is brought into position beneath the finished workpiece which drops into the cradle under the action of gravity. The two cradles are displaced so as to bring the unmachined workpiece into position along the work axis on which it is clamped between centers, and the two cradles are then moved away from the work axis.
Claims21
A method for automatic replacement of a finished workpiece by an unmachined workpiece on the work axis of a machine-tool or the like in which the workpiece is clamped between centers, in which two superposed and rigidly associated cradles respectively for loading the unmachined workpiece and for unloading the machined workpiece are displaced along a predetermined path between a magazine for unmachined workpiece, a one for finished workpieces and the work axis, wherein the path of travel is inscribed in a plane at right angles to the work axis, the cradles being oriented in a direction parallel to said axis and wherein, as a result of successive movements of translation in said plane, the cradles are moved towards the work axis, the unloading cradle is brought into position beneath the finished workpiece which is released in order to ensure that said workpiece drops into the unloading cradle under the action of gravity, the two cradles are displaced so as to bring the unmachined workpiece into position along the work axis on which it is placed between centers, whereupon the two cradles are moved away from the work axis.
A device for automatic replacement of a finished workpiece by an unmachined workpiece on the work axis of a machine-tool or the like in which workpieces are clamped between centers, wherein said device comprises a frame for supporting an assembly of two superposed and rigidly associated cradles each capable of receiving a workpiece placed under the action of gravity and means for simultaneously displacing the two cradles both in height and transversely with respect to their axis in successive movements of translation which are inscribed in a plane at right angles to the work axis.
Dependencies are inferred from the claim text.