Abstract: A table drive includes a table apparatus which includes a table that is configured to support a workpiece, a support base that supports the table apparatus, a first motor configured to move the table apparatus relative to the support base, and a cooling apparatus configured to cool the first motor. The first motor includes a first portion in contact with the support base, and a second portion disposed at a position farther from the support base than the first portion. The cooling apparatus includes a fan configured to give momentum to air, a supply duct via which the air is configured to be supplied to the first portion of the first motor, and an exhaust duct via which the air is configured to be discharged from a periphery of the second portion of the first motor.

Abstract: A tool status display device includes a memory, a processor, and a display. The memory is configured to store first data that associates each attachment surfaces with each tools, and second data that identifies whether tool nose positions of noses of the tools have been measured. The processor is configured to determine whether designated tool among the plurality of tools is attached to designated attachment surface among the plurality of attachment surfaces based on the first data and third data that associates the designated tool with the designated attachment surface. The processor is configured to determine whether designated tool nose positions of the designated tool among the tool nose positions have been measured based on the third data and the second data. The display is configured to show whether the designated tool is attached to the designated attachment surface and whether the designated tool nose positions have been measured.

Abstract: A combined machining apparatus includes a memory storing instructions that, when executed by a processor, cause the combined machining apparatus to perform operations. The operations include reading a machining program to determine a working tool to be called by the machining program, and determining whether the working tool is a cutting tool or a friction stir welding tool. The operation include allowing correction of a position of the working tool based on the temperature detected by a temperature sensor when the working tool is determined to be the cutting tool, and allowing correction of the position of the working tool based on the load applied to a motor that rotates the working tool when the working tool is determined to be the friction stir welding tool.

Abstract: A machine control unit to control a machine tool, includes a user interface to receive inputs by an operator, and a processor configured to be electrically connected to at least one component provided in the machine tool. A memory stores instructions that when executed by the processor, cause the machine control unit to perform operations. The operations includes: displaying an initial power value in the display, the initial power value indicating an electric power consumed by each of the at least one component during running of the machine tool, receiving, via the user interface, a first input for selecting a target component from the at least one component, receiving, via the user interface, a second input including an operation parameter of the target component for changing the electric power consumed by the target component, and controlling the target component to operate based on the operation parameter.

Abstract: A combined machining apparatus includes a spindle to which a cutting tool and a friction stir welding tool are attachable. The apparatus includes a processor and a memory storing instructions that, when executed by the processor, cause the combined machining apparatus to perform operations comprising: reading a machining program to determine a working tool of a plurality of tools to be called by the machining program; determining whether the working tool is the cutting tool or the friction stir welding tool; allowing correction of a position of the working tool based on a temperature detected by a temperature sensor when the working tool is determined to be the cutting tool; and allowing correction of a position of the working tool based on load detected by the load sensor when the working tool is determined to be the friction stir welding tool.

Abstract: A turret lathe includes a turret and circuitry which determines whether a designated tool is attached to a designated mounting surface of the turret and which selects a specific operation pattern from operation patterns based on the determination. The plurality of operation patterns includes a first operation pattern executed when the designated tool is not attached to the designated mounting surface, and a second operation pattern executed when the designated tool is attached to the designated mounting surface. The first operation pattern includes rotating the turret about the first axis such that the designated mounting surface is brought to an indexed mounting position before the designated tool is attached to the designated mounting surface. The second operation pattern includes rotating the turret about the first axis such that the designated mounting surface with the designated tool mounted thereon is directly brought to the tool nose measurement indexed position.

Abstract: A laser piercing method includes emitting a bundle of laser beams to the coated portion in a beam direction, the bundle of laser beams comprising: a first laser beam having a first laser output density; and a second laser beam surrounding the first laser beam as viewed in the beam direction and having a second laser output density smaller than the first laser output density. The method includes piercing the coated portion to form a pierced hole by: melting a center portion of the workpiece on which the first laser beam is cast to generate molten material; and spraying gas to the center portion to scatter the molten material around the center portion. The method includes heating a root of a spatter by a second laser beam, the spatter being the molten material scattered, the root contacting a machined workpiece that is the workpiece with the molten material removed.

Abstract: A numerical controller includes: a model holding unit that holds a machine model, the machine model being a model that simulates deformation of a mechanical structure accompanying motion of the mechanical structure in axial directions and representing an error amount as an amount of displacement of a tool; a machining error estimation unit that estimates an error direction and the error amount in the error direction on the basis of axis data that is data on drive of a drive mechanism and the machine model, the error direction being a direction in which displacement of the tool occurs among the axial directions; and a correction amount arithmetic unit that selects one or more of the axes subject to correction, and performs arithmetic to find a correction amount used for correction of a command to be output to the drive mechanism for the axis selected.

Abstract: A machining simulation apparatus includes a memory and a processor. The memory is configured to store a plurality of constituent models, a plurality of holding unit models, a workpiece model, and a machining program. The processor is configured to set a specific tool model, select a specific holding unit model among the plurality of holding unit models, calculate a recommendation value of a protrusion length of the specific tool model with respect to the specific holding unit model, create an assembly model in which the specific tool model and the specific holding unit model are combined such that the protrusion length is either the recommendation value or a corrected value that is calculated by correcting the recommendation value, and virtually execute the machining program in order to determine whether the assembly model abnormally interferes with the workpiece model or any of the plurality of constituent models.

Abstract: A numerical controller includes: a model holding unit that holds a machine model, the machine model being a model that simulates deformation of a mechanical structure accompanying motion of the mechanical structure in axial directions and representing an error amount as an amount of displacement of a tool; a machining error estimation unit that estimates an error direction and the error amount in the error direction on the basis of axis data that is data on drive of a drive mechanism and the machine model, the error direction being a direction in which displacement of the tool occurs among the axial directions; and a correction amount arithmetic unit that selects one or more of the axes subject to correction, and performs arithmetic to find a correction amount used for correction of a command to be output to the drive mechanism for the axis selected.

Abstract: A machining simulation apparatus includes a processor and a communication circuit. The processor is configured to set a position of a program origin, that is an origin on a machining simulation coordinate system of a numerically controlled lathe, based on a machine model origin on the machining simulation coordinate system, a jaw model that is a shape model of a plurality of jaws mounted on a chuck of the numerically controlled lathe, and a workpiece model that is a shape model of a workpiece to be gripped by the plurality of jaws. The machine model origin corresponds to a machine origin of the numerically controlled lathe. The processor is configured to execute the machining program using the program origin as a reference position to virtually machine the workpiece model. The communication circuit is configured to transmit data indicating the position of the program origin to the numerically controlled lathe.

Abstract: A draw tube drive mechanism includes a draw tube movable along a first axis of a rotation shaft, a moving member movable substantially perpendicularly to the first axis, a first link rotatably connected to the moving member via a first pin, a third link rotatably connected to the first link via a third pin to receive a force from the moving member and transmit the force to the draw tube, and a second link rotatably connected to the first link via a second pin and rotatably connected to the support via the fourth pin. The second pin is provided between the first and third pins. The first to third pins are arranged substantially on a straight line. Each of a distance between the first and second pins and a distance between the second and third pins is substantially equal to a distance between the second and fourth pins.

Abstract: A metal laminating and modeling method includes a first inclination angle modeling step including a first inclination step of setting a table on which the metal layers are to be formed at a first table inclination angle and setting a welding torch at a first torch inclination angle and a first welding step of forming a weld bead that becomes a part of the modeled object by arc welding with the welding torch and a second inclination angle modeling step including a second inclination step of inclining the table at a second table inclination angle that is larger than the first table inclination angle and setting the welding torch at a second torch inclination angle and a second welding step of forming the weld bead.

Abstract: A method of supplying a coolant to a machine tool includes reading, from a machining program, a called code of at least one coolant assignment code, each of the at least one coolant assignment code being to instruct to open or close a plurality of valves provided in a plurality of coolant supply conduits, respectively, the plurality of coolant supply conduits being installed in the machine tool to be connected to a plurality of nozzles, each of the at least one coolant assignment code being to instruct a degree of discharge of the coolant from a pump to the plurality of nozzles. The opening and closing of the plurality of valves are controlled based on the called code. The pump is controlled to discharge the coolant by the degree of discharge based on the called code.

Abstract: A friction stir welding tool includes a shoulder having one end which is configured to be in contact with a workpiece, and a probe provided at the one end to protrude from the one end to a tip end of the probe along a rotation axis. The probe includes a chamfered portion, a spiral groove portion, and an inclined face provided on an end face of the tip end of the probe. The spiral groove portion and the chamfered portion are alternately provided in a circumferential direction on an outer circumferential surface. The spiral groove portion includes a plurality of grooves provided spirally around the rotation axis such that the plurality of grooves approaches the one end along the rotation direction. The inclined face is continuous with the chamfered portion and approaching the one end in the rotation direction.

Abstract: An additive manufacturing method includes cutting a cutting region in a workpiece to heat the workpiece so that a temperature of an additive manufacturing region which is in the cutting region becomes a preheating lower limit temperature or above, and adding melted metal to the additive manufacturing region whose temperature has been a preheating lower limit temperature or above.

Abstract: A machine tool includes a rotation device, a tool holder, and a power feeding actuator. The tool holder is configured to be rotated with a tool about a first axis. A power receiver is provided in an outer circumferential edge region of the tool holder. At least one sensor is electrically connected to the power receiver. The power feeding actuator is configured to supply electric power to the tool holder via the power receiver. The power feeding actuator includes a power feeder configured to supply the electric power to the power receiver, and a first mover configured to move the power feeder between a power feeding position and a retracted position. The power feeder is configured to supply the electric power to the power receiver at the power feeding position. The power feeder is not configured to supply the electric power to the power receiver at the retracted position.

Abstract: A laser-beam working machine includes a laser head rotatable around a main axis and movable along the main axis, a first chuck configured to irradiate a laser beam to the workpiece, and a second chuck provided between the laser head and the first chuck along the main axis to be rotatable around the main axis. The first chuck includes a grip configured to hold a workpiece rotatably around the main axis. The second chuck includes a plurality of guide rollers provided around the main axis to form an opening between the plurality of guide rollers through which the workpiece is configured to pass through. The plurality of guide rollers is configured to move toward and away from the main axis to change a size of the opening so that the plurality of guide rollers guides the workpiece along the main axis and the grip passes through the opening.

Abstract: Systems, methods, and computer program products for monitoring a health condition of a tool. Operational data is collected from a machine while the machine is operating in a predetermined manner with the tool in each of at least two known health conditions. A plurality of features is extracted from the operational data, a training dataset is generated from the extracted features, and an analytic model is trained using the training dataset. The analytic model can then be used to determine the health condition of the tool by providing features extracted from operational data received from one or more field machines to the analytic model. The analytic model may then determine a health condition of the tool in the field machine based on like features extracted from the operational data from the one or more field machines.

Abstract: A machine tool includes a table, a tool support, a mover, a first wall, a first cover, and a first support. The table is configured to support a workpiece and configured to move in a first direction and a second direction opposite to the first direction. The tool support is configured to support a tool with which the workpiece is machined. The mover is configured to move the table in the first direction and the second direction. The first wall has a first opening and is provided on a side of the first direction with respect to the tool support. The first cover protrudes from the first wall in the first direction through the first opening. The first support supports the first cover such that the first cover is rotatable around an axis of the first support.