Abstract: A press machine includes a memory storing a plurality of function programs for changing a mode of pressing; a connection unit including a plurality of connection terminals; and a controller configured to execute at least one function program among the plurality of function programs stored in the memory, in accordance with a combination of the plurality of connection terminals of the connection unit which are each in one of a conductive state and a non-conductive state.

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 system controller serving as a controller for controlling a forming machine acquires, from a sensor which outputs image data for determining a distance in a height direction by sensing a predetermined area including a machining area of the forming machine, background image data not including an image of a workpiece and an operator of the forming machine, and current state image data representing a current state of the predetermined area during operation of the forming machine. The system controller calculates difference data indicating a difference between the background image data and the current state image data, and determines an area of the operator in the predetermined area based on the difference data. The system controller controls operation speed of the forming machine based on a result of the determination.

Abstract: A workpiece transport device is used in a press machine. The workpiece transport device includes a pair of supports and drive mechanisms. The pair of supports support a holder useable to hold a workpiece, so as to allow movement in a transport direction of a workpiece. The drive mechanisms are provided to the pair of supports. The drive mechanisms are configured to move the supports in an up and down direction and a width direction. Each drive mechanism includes a first drive component and a second drive component with each including an electric motor as a drive source, a first link mechanism connecting the first drive component and the support, and a second link mechanism connecting the second drive component and the support.

Abstract: The press device includes a press device body and moving bolsters. The press device body has a slide and a slide servomotor. The slide has upper dies attached thereto. The slide servomotor moves the slide up and down. The moving bolsters are able to move between a pressing position, which is a position on the inside of the press device body, and a die replacement position, which is a position on the outside of the press device body, and have lower dies disposed thereon. The moving bolsters have an electrical storage component, a travel motor, and wheels. The electrical storage component stores regenerative electrical power generated by the slide servomotor in the pressing position. Electrical power is supplied from the electrical storage component to the travel motor. The wheels are driven by the travel motor.

Abstract: A center pipe is used in a plasma torch for plasma cutting including a base portion and an electrode. The center pipe is inserted into the electrode and supplies cooling water into the electrode. The center pipe includes a pipe body and a contact piece. The pipe body is electrically connected to an electrical power source outside of the plasma torch via the base portion. The pipe body includes a cooling water channel therein. The pipe body is formed with an electrically conductive body. The contact piece is provided on the external circumferential surface of the pipe body and energizes the electrode through contact with the internal circumferential surface of the electrode. The contact piece has elasticity to produce a counterforce when pressed in the radial direction of the pipe body. The contact piece is formed with an electrically conductive body.

Abstract: A plurality of cutout members are cut out from a plate blank by a plasma arc generated from a plasma torch by a method including a piercing step and a cutting step. In the piercing step, an aperture is formed on an outer peripheral side of a cutout member by maintaining the plasma torch at a first height from the plate blank on the outer peripheral side of the cutout member while the plasma arc is generated from the plasma torch and by moving the plasma torch relative to the plate blank in a horizontal direction. In the cutting step, a continuous cutting groove is formed along an outer contour of the cutout member by setting the plasma torch at a second height lower than the first height and by moving the plasma torch in the horizontal direction along an incision part and a processing line continuing to the incision part.

Abstract: A press machine includes a servo amplifier configured to supply a drive current to a servo motor, a current detector for detecting the drive current, a rotational angle detector for detecting a rotational angle of a rotary motion provided by the servo motor, and a controller. The controller is configured to set a press production speed by setting a correspondence between rotational angles and rotational speeds at the rotational angles, which defines the rotary motion. The controller is configured to determine whether or not the drive current detected by the current detector is greater than or equal to a first threshold. The controller is configured to reduce all the rotational speeds by an equal ratio when the drive current detected by the current detector is greater than or equal to the first threshold.

Abstract: A press system includes: a measurement unit configured to measure a press load applied for pressing a workpiece; a calculation unit configured to calculate a workload based on the press load measured by the measurement unit; a determination unit configured to make a determination about whether the workload calculated by the calculation unit exceeds an allowable value; and a notification unit configured to provide notification of an abnormality based on a result of the determination by the determination unit. Accordingly, in response to pressing with an overload higher than an allowable value, notification of an abnormality can be provided.

Abstract: A workpiece transport device is used in a press machine. The workpiece transport device includes a pair of supports and drive mechanisms. The pair of supports support a holder useable to hold a workpiece, so as to allow movement in a transport direction of a workpiece. The drive mechanisms are provided to the pair of supports. The drive mechanisms are configured to move the supports in an up and down direction and a width direction. Each drive mechanism includes a first drive component and a second drive component with each including an electric motor as a drive source, a first link mechanism connecting the first drive component and the support, and a second link mechanism connecting the second drive component and the support.

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 press system includes: a detection unit configured to detect a press load applied for pressing a workpiece; a calculation unit configured to calculate an amount of eccentricity of a slide based on the press load detected by the detection unit; a determination unit configured to make a determination about whether the press load detected by the detection unit exceeds an allowable value of press load based on the amount of eccentricity calculated by the calculation unit; and a notification unit configured to provide notification of an abnormality based on a result of the determination by the determination unit. Accordingly, whether an abnormality is present or not is determined using an allowable value of press load based on an amount of eccentricity, and whether an eccentricity abnormality is present or not can thus be determined with high accuracy.

Abstract: A press system includes: a detection unit configured to detect a press load applied for pressing a workpiece; a reference waveform generation unit configured to generate a reference waveform for comparison, based on a load waveform of the press load detected by the detection unit; and a determination unit configured to determine whether a press abnormality is present, based on the load waveform of the press load detected by the detection unit and the reference waveform. The press system generates the reference waveform, and therefore, the state of press working can be determined by a simple method.

Abstract: A drive unit drives a slide which vertically reciprocates for pressing the workpiece. A detection unit detects positional information about the slide. A speed control unit controls the speed of the slide by the drive unit, based on motion information defining operation of the slide. A stoppage determination calculation unit sets a deceleration start point at which deceleration of the slide is to be started, based on the motion information and a set point at which the slide is to be forced to stop. A speed control unit determines whether an abnormality signal regarding transportation of the workpiece is input, when the slide reaches the deceleration start point based on the positional information about the slide detected by the detection unit. The speed control unit performs deceleration control for the slide so that the slide is stopped at the set point, when determining that the abnormality signal is input.

Abstract: There is provided a power control method for a fiber laser processing machine including: a fiber laser oscillator having a plurality of fiber laser modules each of which generates a laser beam; a laser processing head for emitting the laser beam generated from the fiber laser oscillator; and a condenser lens with a prescribed focal length provided between a workpiece and the laser processing head, for irradiating the workpiece with the laser beam having a spot diameter output from the laser processing head, wherein the number of the plurality of fiber laser modules oscillated is adjusted so as to achieve the spot diameter corresponding to the workpiece, and thereby, a beam quality from the laser processing head is adjusted.

Abstract: A press machine includes a memory storing a plurality of function programs for changing a mode of pressing; a connection unit including a plurality of connection terminals; and a controller configured to execute at least one function program among the plurality of function programs stored in the memory, in accordance with a combination of the plurality of connection terminals of the connection unit which are each in one of a conductive state and a non-conductive state.

Abstract: A control system includes a load detector, a determination unit, and a drive control unit. The load detector detects a load of a slide. The load of the slide includes a positive load due to a pressing force of the slide during pressing and a negative load at the time of a breakthrough. The determination unit determines whether to execute emergency stopping of the slide based on the positive load and the negative load detected by the load detector. The drive control unit controls the driving of the slide based on the determination result of the determination unit.

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.

Abstract: A center pipe is used in a plasma torch for plasma cutting including a base portion and an electrode. The center pipe is inserted into the electrode and supplies cooling water into the electrode. The center pipe includes a pipe body and a contact piece. The pipe body is electrically connected to an electrical power source outside of the plasma torch via the base portion. The pipe body includes a cooling water channel therein. The pipe body is formed with an electrically conductive body. The contact piece is provided on the external circumferential surface of the pipe body and energizes the electrode through contact with the internal circumferential surface of the electrode. The contact piece has elasticity to produce a counterforce when pressed in the radial direction of the pipe body. The contact piece is formed with an electrically conductive body.

Abstract: A resin insulation guide is used in a plasma torch including an electrode and a nozzle into which the electrode is inserted. The insulation guide is used to couple the electrode and the nozzle, and includes a first internal circumferential surface formed on an inside of the insulation guide, a second internal circumferential surface formed on the inside of the insulation guide, a communication channel, and a heat resistant coating formed on the first internal circumferential surface. The second internal circumferential surface has an inner diameter smaller than an inner diameter of the first internal circumferential surface. The communication channel communicates a space inside the first internal circumferential surface to an outside of the insulation guide, and extends in a direction inclined with respect to an axial direction of the insulation guide.