Abstract: A workpiece transport device is downsized. A workpiece transport device includes: a pair of upstream-side end shaft and downstream-side end shafts disposed apart from each other in a transport direction that is a direction of transport of a workpiece, an upstream-side drive shaft disposed between a pair of upstream-side end shaft and downstream-side end shafts in the transport direction, an upstream-side drive belt wound around the upstream-side drive shaft and the upstream-side end shaft, and a transport belt wound around the pair of upstream-side end shaft and downstream-side end shaft. Driving force for transporting the workpiece is transmitted to the transport belt through the upstream-side drive shaft, the upstream-side drive belt, and the upstream-side end shaft in this order.

Abstract: The press device is a press device configured to press a workpiece, and includes a slide, a bolster, a servomotor, and a control section. The slide is movable. The bolster is placed to face the slide. The servomotor drives the slide. The control section is configured to be able to execute selectively either the productivity priority mode of setting a limit value slower than the maximum press speed of the press device to the press speed when performing a pendulum motion or a reverse motion, or the moldability priority mode of setting a stop time to the servomotor without setting the limit value.

Abstract: A plasma torch moves to a piercing position. The plasma torch generates a plasma arc and starts a piercing step at the piercing position. Whether the piercing step is completed is determined based on the arc voltage. The plasma torch is held at the piercing position in the horizontal direction from the start of the piercing step until the completion of the piercing step. The plasma torch is moved in a predetermined direction including at least the horizontal direction after the piercing step is completed.

Abstract: Provided is a laser machine which achieves an enhanced durability against laser beam irradiation. A workpiece transfer device for carrying a workpiece into and out of a workpiece machining chamber, has a turntable device and a partition wall. The partition wall is secured to the top surface of the turntable device, partitioning the top surface of the turntable device into a plurality of workpiece mounting tables on which workpieces can be mounted. The partition wall has: a first plate forming one surface of the partition wall and formed of aluminum alloy; a second plate forming the other surface of the partition wall and formed of aluminum alloy; and a frame for securing the first plate and the second plate in a spaced apart relationship.

Abstract: A workpiece transport device capable of improving a workpiece transport speed to increase productivity is provided. The workpiece transport device transports a workpiece pressed by a press machine. The workpiece transport device includes a base portion, a crossbar that holds the workpiece, a parallel mechanism, and a motor. The parallel mechanism is supported on the base portion. The parallel mechanism is configured to change a position of the crossbar relative to the base portion by operating in a plane defined by a transport direction in which the workpiece is transported and an up-down direction. The motor generates a driving force for driving the parallel mechanism. The motor is mounted on the base portion.

Abstract: A laser processing device is a device that processes a workpiece using a laser beam, and includes a cutting pallet and a container. The cutting pallet includes a placement unit that supports a lower surface of the workpiece. The container supports the cutting pallet and is capable of storing a transmission inhibition liquid inhibiting transmission of light having a wavelength greater than or equal to 0.7 µm and less than or equal to 10 µm up to a height position of the placement unit.

Abstract: A plasma cutting machine cuts a work piece with a plasma arc. The plasma cutting machine includes a plasma torch, a drive device, and a controller. The plasma torch includes an electrode and a nozzle and generates the plasma arc. The drive device moves the plasma torch. The controller includes a storage device and controls the drive device. The storage device records information pertaining to the plasma cutting machine. The controller acquires a weight of a work piece. The controller acquires a consumption amount of at least one of the electrode and the nozzle. The controller records, in the storage device, processing performance data including the weight of the work piece and the consumption amount correlated with each other.

Abstract: A simulation device has a simulation unit and a coordinate acquisition unit. The simulation unit simulates the operations of press devices and the operations of feeder devices that transport a workpiece between the press devices. The coordinate acquisition unit acquires a locus of a plurality of predetermined positions in the width direction of the feeder devices from simulation.

Abstract: A three-dimensional laser machine includes a machine head, a controller for positioning the machine head and controlling an orientation of a nozzle, and a sensor for detecting a distance between a workpiece and the nozzle. The controller is capable of performing a profile control of correcting the position of the machine head based on the detected distance. When the machine head has reached a predetermined position part way through an approach process of moving the machine head from an approach start position to a machining start position while controlling the pose of the nozzle, the controller performs the profile control to move the machine head to the machining start position.

Abstract: A press device includes a press device main body and a main breaker to supply or stop power from an external power supply to the press device main body. The press device main body includes a slide, a bolster disposed below the slide, a servomotor configured to drive the slide, a power storage unit able to supply stored power to the servomotor, a discharge unit configured to discharge a charge stored in the power storage unit, and a first contactor. An upper die can be mounted on the slide. A lower die can be disposed on the bolster. The first contactor interrupts an electrical connection between the power storage unit and the discharge unit in an energized state and electrically connects the power storage unit and the discharge unit in a non-energized state. The first contactor is supplied with power for energization from the external power source without passing through the main breaker.

Abstract: A press device subjects a material to pressing using an upper die and a lower die. The press device includes a slide, a bolster disposed below the slide, a servomotor configured to drive the slide, a plurality of capacitor units, and a control unit. The upper die can be attached to a lower face of the slide. The lower die can be placed on the bolster. The capacitor units include a plurality of electric double layer capacitors. The plurality of capacitor units are configured to be able to supply stored electric power to the servomotor. The control unit executes an operation mode in which pressing is performed using capacitor units other than unused capacitor units when the plurality of capacitor units have been set so that at least a portion of the capacitor units are not used.

Abstract: A three-dimensional laser cutter can be disposed in a machining room. The machining room includes a ceiling and a plate member. The ceiling is provided with a suction port connected to a suction device. The plate member is disposed below the ceiling with a gap therebetween. The plate member forms a space with the ceiling.

Abstract: A press system includes a press portion and a controller configured to control the press portion. The controller includes a load pattern generator, an evaluation input unit, and an optimum load pattern setting unit configured to set an optimum load pattern based on a plurality of evaluations of the quality input by the evaluation input unit. The optimum load pattern setting unit includes a response surface generator configured to create from evaluation value data based on the plurality of load patterns and the plurality of evaluations of the quality, by using as an objective function, the evaluation value data with the load pattern being defined as a design variable, a response surface of the objective function, and an optimization calculator configured to find an optimum solution of the objective function of the response surface by optimization.

Abstract: A press system includes: a press device configured to perform press working on a workpiece; a detection device configured to detect a press load applied for the press working by the press device; a number acquisition device configured to acquire a number of cycles of press loading, for each section of a plurality of sections into which a press loading region over a total length of a slide stroke is divided; a stress calculation device configured to calculate a stress applied to the press device, the stress corresponding to the press load for each section of the press loading region; and a degree-of-fatigue calculation device configured to calculate a degree of fatigue of the press device, based on respective stresses applied to the press device and respective numbers of cycles of press loading, for the plurality of sections of the press loading region.

Abstract: A press device includes a slide, a bolster disposed below the slide, a servomotor configured to drive the slide, a power storage unit, a current detector, and a control unit. An upper die can be mounted on the slide. A lower die can be placed on the bolster. The power storage unit is configured to be able to supply stored power to the servomotor. The current detector detects current supplied from the power storage unit. The control unit performs stop control to stop supply of current from the power storage unit to the servomotor based on a detection value of the current detector.

Abstract: A coiled material passing device is usable to pass a coiled material played out by an uncoiler to a leveler feeder configured to correct any winding curl of the coiled material. The coiled material passing device includes a clamper configured to clamp a starting end of the coiled material played out from the uncoiler, a moving body configured to support the clamper, the moving body being movable between the uncoiler and the leveler feeder, and a first driver configured to move the moving body.

Abstract: A pressing device is capable of selectively pressing either a coiled material or a sheet material. The pressing device includes a pair of bars and a first retracting mechanism. Each bar includes a holding section capable of holding the sheet material, a first end section separably linked to the holding section on an upstream side of the holding section along a conveyance direction of a material, and a second end section separably linked to the holding section on a downstream side of the holding section along the conveyance direction. The first retracting mechanism is configured to move the first end sections to an upper first retracted position during the pressing of the coiled material.

Abstract: A press system includes a detection unit configured to detect occurrence of an abnormality during press working for a workpiece, and an abnormality determination unit configured to determine an abnormality level, based on the abnormality detected by the detection unit and a stoppage period for which a pressing operation is stopped after occurrence of the abnormality.

Abstract: A center pipe is used in a plasma torch including a base portion and an electrode to supply cooling water into the electrode. The center pipe includes a pipe body and a contact piece. The pipe body has a tube-like shape with a cooling water channel therein. The pipe body is electrically conductive and configured to be electrically connected to an external power source via the base portion. The contact piece is arranged radially outside the pipe body at an intermediate position between a base end surface and a tip end surface of the pipe body. The contact piece is electrically conductive and energizes the electrode through contact with an internal circumferential surface of the electrode. The base end surface is disposed outside the electrode when the center pipe is inserted into the electrode. The pipe body is configured to be electrically connected to the electrode via the contact piece.

Abstract: A replacement part unit for a plasma torch includes an electrode, an insulation guide, and a nozzle. The insulation guide includes a hole into which the electrode is inserted. The insulation guide is coupled to the electrode by press-fitting or adhesion. The nozzle includes a hole into which the insulation guide is inserted. The nozzle is coupled to the insulation guide by press-fitting or adhesion.