Abstract: A numerical control device for controlling a plurality of drive shafts to drive a tool and cause the tool to cut a workpiece while vibrating the tool in a fixed vibrating direction regardless of a cutting direction, a comparison unit that compares a command value of a cutting depth with an actual value of the cutting depth based on a vibration amplitude of the drive shaft when the vibrating direction and the cutting direction are not the same as each other, the cutting depth being a difference between a position of a face to be machined of the workpiece before machining and a position of the machined face after machining; and an adjustment unit that adjusts a movement of the tool so that the actual value becomes smaller when the actual value is larger than the command value.

Abstract: A numerical control device for controlling a plurality of drive shafts to drive a tool and cause the tool to cut a workpiece while vibrating the tool in a fixed vibrating direction regardless of a cutting direction, a comparison unit that compares a command value of a cutting depth with an actual value of the cutting depth based on a vibration amplitude of the drive shaft when the vibrating direction and the cutting direction are not the same as each other, the cutting depth being a difference between a position of a face to be machined of the workpiece before machining and a position of the machined face after machining; and an adjustment unit that adjusts a movement of the tool so that the actual value becomes smaller when the actual value is larger than the command value.

Abstract: A numerical control device includes—a screen processing unit that divides a waveform of a commanded oscillatory movement quantity specified by a vibration cutting command and a waveform of an actual position detected by detectors, into sections each corresponding to a unit time, and this screen processing unit displays, on a display unit, an n-th commanded oscillation waveform, which is an n-th waveform of the commanded oscillatory movement quantity; an (n+1)-th commanded oscillation waveform, which is an (n+1)-th waveform of the commanded oscillatory movement quantity; an n-th actual position waveform, which is an n-th waveform of the actual position; and an (n+1)-th actual position waveform, which is an (n+1)-th waveform of the actual position, being superimposed on one another along a time axis, where n is a natural number.

Abstract: A numerical control device for controlling multiple drive shafts that drive a tool for machining an object to be machined includes an analysis processing unit that analyzes a machining program, a machining path calculation unit that calculates a machining path, which is a travel path of the tool in cutting machining of the object to be machined, based on a result of analysis of the machining program performed by the analysis processing unit, and an interrupt pathway calculation unit that calculates a travel path of the tool in an interrupt operation based on the result of analysis. The interrupt operation is an operation repeatedly performed in which the tool is temporarily lifted up from the machining path while the tool is moved along the machining path and is machining the object to be machined.

Abstract: A numerical control device includes a control computation unit that controls a machine tool and a robot by using an NC program defined in a first coordinate system, the control computation unit includes a storage unit that stores the NC program including a first command, which is a command for the machine tool described in a first programming language, and a second command, which is a command for the robot described in the first programming language, and a program converting unit that converts the second command into a third command, which is a robot program used for controlling the robot, and the control computation unit controls the machine tool by using the first command and controls the robot by using the third command.

Abstract: A numerical control device includes a control computation unit controlling a spindle as a rotation axis of a workpiece, a first shaft driving a tool performing vibration cutting machining on the workpiece, and a second shaft driving a tool performing vibration cutting machining on the workpiece. The computation unit includes: a storage unit storing a machining program; a determination unit determining whether the number of vibrations of the first shaft and the second shaft follows a rotation speed of the spindle specified by the machining program; and a number-of-vibrations calculation unit that, in response to the determination that the number of vibrations of at least one of the first shaft and the second shaft does not follow the rotation speed of the spindle, calculates the number of vibrations following the rotation speed of the spindle for the drive shaft assessed as not following it.

Abstract: A numerical control device for a machine tool, the machine tool including: a reference shaft that moves a tool or a workpiece; and a superimposition shaft that moves a tool or the workpiece. The numerical control device superimposes the movement amount of the reference shaft on the movement amount of the superimposition shaft. The numerical control device including a control computation unit that, in response to a superimposition control command, changes at least one of a first vibration rate, a second vibration rate, and a main shaft rotation speed on a basis of a first vibration command, a second vibration command and a main shaft rotation speed command such that the first vibration rate stays constant and the second vibration rate stays constant. The first vibration rate is a number of times that of the reference shaft vibrates per rotation of a main shaft.

Abstract: A numerical control device for a machine tool, the machine tool including: a reference shaft that moves a tool or a workpiece; and a superimposition shaft that moves a tool or the workpiece. The numerical control device superimposes the movement amount of the reference shaft on the movement amount of the superimposition shaft. The numerical control device including a control computation unit that, in response to a superimposition control command, changes at least one of a first vibration rate, a second vibration rate, and a main shaft rotation speed on a basis of a first vibration command, a second vibration command and a main shaft rotation speed command such that the first vibration rate stays constant and the second vibration rate stays constant. The first vibration rate is a number of times that of the reference shaft vibrates per rotation of a main shaft.

Abstract: A numerical control device for controlling a main shaft, which is a rotating shaft for a workpiece, a drive shaft that drives a tool for vibration cutting of the workpiece in an X-axis direction, and a drive shaft that drives the tool or the workpiece in a Z-axis direction, includes: a storage unit that stores a machining program for vibration cutting of the workpiece; and a control computation unit that calculates a specific point that the tool passes during vibration cutting on the basis of a tolerance value, which is an allowable error in machining of a corner of the workpiece, and generates a vibration waveform of the tool indicating a movement path of the tool passing the specific point, in which the control computation unit controls movement and vibration of the tool in accordance with the machining program and the vibration waveform.

Abstract: A numerical control device for controlling a main shaft, which is a rotating shaft for a workpiece, a drive shaft that drives a tool for vibration cutting of the workpiece in an X-axis direction, and a drive shaft that drives the tool or the workpiece in a Z-axis direction, includes: a storage unit that stores a machining program for vibration cutting of the workpiece; and a control computation unit that calculates a specific point that the tool passes during vibration cutting on the basis of a tolerance value, which is an allowable error in machining of a corner of the workpiece, and generates a vibration waveform of the tool indicating a movement path of the tool passing the specific point, in which the control computation unit controls movement and vibration of the tool in accordance with the machining program and the vibration waveform.

Abstract: A numerical control device includes a first control unit to write a control right request for a second system axis to a shared area in a case where a machining program contains an axis exchange command designating a second system axis that is driven by a second control unit, and determines acquisition of a control right for the second system axis based on a response from the second control unit written to the shared area.

Abstract: A numerical control device includes a first control unit to write a control right request for a second system axis to a shared area in a case where a machining program contains an axis exchange command designating a second system axis that is driven by a second control unit, and determines acquisition of a control right for the second system axis based on a response from the second control unit written to the shared area.

Abstract: A numerical control apparatus that is a selection apparatus causes, when an automatic lathe that fabricates a workpiece from a bar is unable to fabricate a workpiece that is a fabrication target from a remaining material that is a remaining part of the bar being machined, the automatic lathe to select another workpiece that the automatic lathe is able to fabricate from the remaining material. The numerical control apparatus includes a selection unit to select, when there are a plurality of other workpieces that are able to be fabricated from the remaining material, a workpiece to be fabricated on the basis of a length of the remaining material and priority.

Abstract: A numerical control device is for machining a machining object by moving a tool and the machining object relative to each other along a movement path while applying vibration, by use of a drive axis provided for the tool or the machining object. The device includes a storage unit that holds an invalid frequency region, and a vibration condition determining unit to determine a frequency for the vibration, based on a rotational speed of a main shaft for rotating the machining object, a number of vibrations of the vibration in each one rotation of the main shaft, and the invalid frequency region.

Abstract: A numerical control apparatus includes: a drive unit controlling a main shaft rotating a workpiece, a first drive shaft feeding a cutting tool relatively to the workpiece along a perpendicular direction to a lead direction of a thread, and a second drive shaft feeding the cutting tool relatively to the workpiece along the lead direction; and a vibration unit superimposing, on movement of the first drive shaft, vibration having a period having a predetermined ratio with a rotation period of the main shaft, and forms a thread on the workpiece by moving the cutting tool and the workpiece relative to each other and performing cut processes on the workpiece. The numerical control apparatus includes a thread-cutting vibration adjustment unit controlling the drive unit to shift phase of the vibration with respect to phase of the main shaft by a predetermined vibration phase shift amount every time in the cut processes.

Abstract: A numerical control apparatus that is a selection apparatus causes, when an automatic lathe that fabricates a workpiece from a bar is unable to fabricate a workpiece that is a fabrication target from a remaining material that is a remaining part of the bar being machined, the automatic lathe to select another workpiece that the automatic lathe is able to fabricate from the remaining material. The numerical control apparatus includes a selection unit to select, when there are a plurality of other workpieces that are able to be fabricated from the remaining material, a workpiece to be fabricated on the basis of a length of the remaining material and priority.

Abstract: A selecting device causes a machine tool, which machines a workpiece from a bar material, to select another workpiece that the machine tool can machine from a leftover material, which is a remaining part of the bar material being machined, when a workpiece to be machined is not machinable from the leftover material. The selecting device includes: a selecting unit that refers to mountable tool data indicating a tool that can be mounted on a mount position of the machine tool, and causes the machine tool to select another workpiece that is machinable by the tool that can be mounted on the machine tool, in selecting another workpiece to be machined by the machine tool from the leftover material.

Abstract: A numerical control apparatus includes: a drive unit controlling a main shaft rotating a workpiece, a first drive shaft feeding a cutting tool relatively to the workpiece along a perpendicular direction to a lead direction of a thread, and a second drive shaft feeding the cutting tool relatively to the workpiece along the lead direction; and a vibration unit superimposing, on movement of the first drive shaft, vibration having a period having a predetermined ratio with a rotation period of the main shaft, and forms a thread on the workpiece by moving the cutting tool and the workpiece relative to each other and performing cut processes on the workpiece. The numerical control apparatus includes a thread-cutting vibration adjustment unit controlling the drive unit to shift phase of the vibration with respect to phase of the main shaft by a predetermined vibration phase shift amount every time in the cut processes.

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.

Abstract: A numerical control device includes a phase-difference calculation unit that, when machining with vibrations is performed on a movement path, calculates a phase difference between a vibrational forward-moving position and a vibrational backward-moving position from a vibration amplitude-to-feed ratio between amplitude of the vibrations and a feed speed of a tool to a workpiece, a movement-path generation unit generating the vibrational forward-moving position and the vibrational backward-moving position as the movement path for each drive shaft by using the phase difference, a vibration-waveform generation unit generating a reference vibration waveform to be superimposed on the movement path for each drive shaft by using vibration conditions, a vibrational-movement-amount generation unit calculating a vibrational-movement amount on the movement path for each drive shaft by using the reference vibration waveform, and a movement-amount combining unit generating a combined movement amount for each drive shaft by