Numerical control device
AssigneeMitsubishi Electric Corporation
InventorsMasakazu SAGASAKI, Koji TERADA
Life of this patent
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Abstract
A numerical control device is the numerical control device that controls a machine tool including a plurality of spindles that each rotate a tool opposed to a workpiece around a tool axis relative to the workpiece and a feed shaft that performs a feed operation such that a plurality of the tools relatively move closer to a plurality of the workpieces, and the numerical control device includes an associated-synchronous-tapping unit that associates, according to an associated-synchronous-tapping command, rotation and feed of a spindle on an associated side among the spindles with rotation and feed of a spindle on a reference side among the spindles and simultaneously performs synchronous tapping with the tools.
Claims11
1-7. (canceled)
A numerical control device that controls a machine tool including a plurality of spindles that each rotate a tool opposed to a workpiece around a tool axis relative to the workpiece, a first feed shaft that performs a feed operation such that a plurality of the tools relatively move closer to a plurality of the workpieces, and a second feed shaft that changes a distance between one tool among the tools and a workpiece opposed to the one tool, the numerical control device comprising
- an associated-synchronous-tapping unit to, according to an associated-synchronous-tapping command, associate, by using the first feed shaft, rotation and feed of a spindle on an associated side among the spindles with rotation and feed of a spindle on a reference side among the spindles and associate, by using the second feed shaft, the rotation and feed of the spindle on the associated side with the rotation and feed of the spindle on the reference side such that a difference between a distance between a tool of the spindle on the reference side and a workpiece and a distance between a tool of the spindle on the associated side and a workpiece corresponds to a difference between a tool length of the spindle on the reference side and a tool length of the spindle on the associated side, and simultaneously perform, with the tools, synchronous tapping in which the one tool and a tool other than the one tool among the tools have different machining conditions.
A numerical control device that controls a machine tool including a plurality of spindles that each rotate a tool opposed to a workpiece around a tool axis relative to the workpiece, a first feed shaft that performs a feed operation such that a plurality of the tools relatively move closer to a plurality of the workpieces, and a second feed shaft that changes a distance between one tool among the tools and a workpiece opposed to the one tool, the numerical control device comprising
- an associated-synchronous-tapping unit to, according to an associated-synchronous-tapping command, associate, by using the first feed shaft, rotation and feed of a spindle on an associated side among the spindles with rotation and feed of a spindle on a reference side among the spindles and associate, by using the second feed shaft, the rotation and feed of the spindle on the associated side with the rotation and feed of the spindle on the reference side such that a difference between a distance between a tool of the spindle on the reference side and a workpiece and a distance between a tool of the spindle on the associated side and a workpiece corresponds to a difference between a machining hole depth of the spindle on the reference side and a machining hole depth of the spindle on the associated side, and simultaneously perform, with the tools, synchronous tapping in which the one tool and a tool other than the one tool among the tools have different machining conditions.
Dependencies are inferred from the claim text.