Abstract: Provided is a wire electric discharge machine which processes a workpiece by applying prescribed pulse power between a traveling wire electrode and the workpiece, wherein in the machine: a working liquid is supplied to nozzles, which jet the working liquid in the traveling direction of the wire electrode, by means of supply pumps by adhering, to the workpiece, the nozzles; the supply pumps are controlled through constant pressure control for controlling the pressure of the working liquid supplied to the nozzles to a prescribed constant pressure; the frequency of a current is measured, the current being supplied to the supply pumps, which supply the working liquid to the nozzles, by moving the workpiece to the wire electrode in a traverse direction of the traveling direction of the wire electrode; and the supply pump control is switched from the constant pressure control to a constant flow rate control, for supplying the working liquid of a constant flow rate to the nozzles, when the measured frequency exceeds

Abstract: A sliding linear motion guide device that is to be provided between a supporting body and a movable body is provided with: a rail (300) having a first guiding surface (302) and second guiding surfaces (304, 306) which are inclined; a carriage (200) having a receiving recess for receiving at least part of the rail and having a first sliding surface (204) facing the first guiding surface of the rail and second sliding surfaces (206, 208) facing the respective second guiding surfaces; and sliding members (10) each of which is a thin plate attached to one of the sliding surfaces. The sliding members each have a lubricant pocket (14) which is a recess surrounded by a land part (12).

Abstract: A milling tool includes a shank section and a head, the head provided on a tip end side of the shank section and having cutting edges. The head includes an expanding diameter section and a contracting diameter section, the expanding diameter section gradually increasing in diameter as it spans toward the tip end from a base end portion adjoining the shank section, and the contracting diameter section gradually decreasing in diameter as it spans toward the tip end from a maximum diameter section. At least one cutting edge is provided on each of the expanding diameter section and the contracting diameter section. At least one tip-end cutting edge that extends from the contracting diameter section to a center axis of the milling tool is provided on a tip end portion of the head.

Abstract: A method is provided with a step of converting shape data (51) into a plurality of voxels (55) for each of a plurality of known objects being processed, a step of setting, for each of the known objects being processed, a processing condition for a voxel (55) constituting a processing surface, a step of using the voxel (55) of the plurality of known objects being processed and the processing condition to perform machine learning in which an input is the voxel (55) and an output is a processing condition, a step of converting shape data (52) of a candidate object being processed into a plurality of voxels (56), a step of setting, on the basis of results of machine learning, a processing condition for a voxel (56) constituting a processing surface of the candidate object being processed, and a step of determining a processing condition for each processing surface of the candidate object being processed, a processing condition that is set for the largest number of voxels (56) in one processing surface being deter

Abstract: This narrow-hole electric discharge machine (100), which performs electric discharge machining by relatively moving a narrow-hole electrode (28) attached to a main spindle (114) and a workpiece (130) attached to a table (118), comprises: a positioning guide (16) which is attached to a guide arm (142) below the main spindle, through which the narrow-hole electrode is inserted such that a lower portion of the narrow-hole electrode is movable in the direction of an axis line (CL0), and which supports the narrow-hole electrode; and a power feeder (10) which is provided at a predetermined position directly above the positioning guide of the guide arm, comes into direct contact with the narrow-hole electrode movable in the axis line direction and feeds power to the narrow-hole electrode, wherein the distance from a power feed position to the tip of the positioning guide is constant regardless of the length of the narrow-hole electrode.

Abstract: There is provided a hole machining method, using a tap tool which rotates about an axis of rotation and which includes a threaded part which has a blade for machining a threaded groove in a pilot hole, and a non-engaging part which forms a space between itself and the pilot hole in a cross-sectional view in which the axis of rotation and a center axis of the pilot hole are aligned, the method including the steps of machining a threaded groove by rotating the tap tool and advancing it toward a workpiece side in a first state in which the center axis and the axis of rotation are aligned, rotating the tap tool about the axis of rotation and moving the tap tool in an interior of the pilot hole toward the non-engaging part side in a direction orthogonal to the axis of rotation to transition the tap tool from the first state to a second state in which engagement between the threaded part and the threaded groove is released, and retracting the tap tool from the threaded hole.

Abstract: A simulated current generation unit is connected in series to a power supply device for an electric discharge machine in a state in which a contact and a contact are in contact with each other and generates a simulated current (Isim) for simulating current caused by dielectric breakdown of a discharge gap constituted by a workpiece and a pipe electrode, which face each other with a predetermined gap in order to perform electrical discharge machining of the workpiece by a narrow-hole electric discharge machine, based on an applied voltage of the power supply device for an electric discharge machine. An NC device judges the presence or absence of an abnormality of the power supply device for an electric discharge machine based on the simulated current (Isim) detected by a current detection unit.

Abstract: When measuring the position of a workpiece fixed to a table of a machine tool: rotary feed axes of the machine tool are pivoted such that an upper surface of the table faces in the direction of a line of sight of a camera, and an image of the workpiece is captured; the rotary feed axes are pivoted such that a side surface of the table faces in the direction of the line of sight of an image capturing device, and an image of the workpiece is captured; and the position of the workpiece is measured on the machine tool on the basis of the captured images.

Abstract: A document creating device (10): creates a common document (100) serving as a template for creating a derived document (300), and a difference document (200) including a region (106) in which an element (206) different from elements (112, 114, 116, 114) in the common document is embedded, and an empty region (108); and generates the derived document (300) from the common document by replacing the elements in the common document with elements in the corresponding region of the difference document.

Abstract: This document creation device (10) divides common sections of documents of a plurality of diverse specifications into unit documents (100), manages and shares the unit documents, groups similar unit documents (100) and manages and stores the similar unit documents, couples unit documents to a set serving as one edited document on the basis of an edited document configuration (50), which is a list of unit documents coupling to the edited document, or couples the unit documents to an electronic file of one edited document, wherein, during said coupling, rewriting is performed such that, when referring to a group in which the content embedded in the unit documents is a set of unit documents, a document which belongs to the referenced group and which is included in the edited document configuration is referred to.

Abstract: A milling cutter (100) comprising: a cartridge (33) that has a tip (32) fixed thereto; a body (10) that has a pocket (15) formed therein into which the cartridge (33) is inserted; and a fixing tool (40) that fixes the cartridge (33), wherein the body (10) has a fixing tool insertion hole (16) that is adjacent to the pocket (15) on the radial direction inner side thereof, and a partitioning wall (17) between the pocket (15) and the fixing tool insertion hole (16), the fixing tool (40) that has been inserted into the fixing tool insertion hole (16) exerts a radial direction outward force on the partitioning wall (17), the pocket (15) is formed so as to produce a counterforce that resists the radial direction outward force acting on the cartridge (33) via the partitioning wall (17), and the cartridge (33) is fixed in the pocket (15) on the basis of the radial direction outward force.

Abstract: A temperature control device includes a machine body temperature sensor which measures a machine body temperature at a portion separated from a spindle device, a return oil temperature sensor which measures a temperature of cooling oil which circulates in a machine tool and which is collected by the temperature control device, an oil controller which includes at least two oil control modules, each having a cooler and which control the temperature of the cooling oil so that the temperature of the cooling oil detected by the return temperature sensor is synchronized with a reference temperature set based on a machine body temperature, in which tanks thereof communicate with each other, and the at least two oil control modules are connected in parallel to the machine tool, and a piping connection manifold for uniformizing convergence of the cooling oil to the machine tool and branching to each of the oil control modules.

Abstract: This machine tool is provided with: a sensor (30-1, 30-2, 30-3, 30-4) which is disposed in the vicinity of an opening for loading a workpiece and which measures the motion of an object approaching the opening; a storage unit (18) storing a rule for classifying non-processing time into setup time and non-setup time on the basis of the motion of the object relative to the sensor; a determination unit (14) which, when a processing program is not being executed, determines whether the current state of the machine tool corresponds to setup time or non-setup time on the basis of the motion of the object and the rule stored in the storage unit; and an output unit (20) which produces an output indicating whether the current state of the machine tool corresponds to setup time or non-setup time.

Abstract: A belt processing device moves a processing belt relative to a workpiece to process the workpiece. The belt processing device comprises a first roller that is a processing roller, a second roller that is a driven roller, a processing belt that is supported by the first roller and the second roller, a pneumatic motor that rotates the first roller or the second roller, an elastic ring that is installed on the outer circumference of the first roller, and an expansion prevention member that is installed on the elastic ring and has a greater modulus of elasticity than the elastic ring.

Abstract: This machine tool is provided with: a sensor (30-1, 30-2, 30-3, 30-4) which is disposed in the vicinity of an opening for loading a workpiece and which measures the motion of an object approaching the opening; a storage unit (18) storing a rule for classifying non-processing time into setup time and non-setup time on the basis of the motion of the object relative to the sensor; a determination unit (14) which, when a processing program is not being executed, determines whether the current state of the machine tool corresponds to setup time or non-setup time on the basis of the motion of the object and the rule stored in the storage unit; and an output unit (20) which produces an output indicating whether the current state of the machine tool corresponds to setup time or non-setup time.

Abstract: The invention relates to an apparatus 100 for machining a workpiece with a laser beam 101 coupled into a fluid jet. The apparatus 100 comprises a laser unit 101a for providing the laser beam 101, a nozzle unit 102 with an aperture 102a for producing the fluid jet, and an optical unit 103 configured to provide the laser beam 101 from the laser unit 101a onto the nozzle unit 102. Further, the apparatus 100 comprises a control unit 104 configured to control 108, 110 the optical unit 103 and/or nozzle unit 102 to change a point of incidence 109 of the laser beam 101 on the nozzle unit 102. The apparatus 100 also comprises a sensing unit 105 configured to sense laser light 106 reflected from a surface 102b of the nozzle unit 102 and produce a sensing signal 107 based on the sensed reflected laser light 106.

Abstract: The object of the present invention is to make it possible to maintain a stable electric discharge and to achieve a stable quality and machining performance even when a work having a non-uniform composition is machined. A wire electric discharge machining device performs electric discharge machining on a work while controlling an inter-electrode distance between a wire and the work based on an inter-electrode voltage between the wire and the work so as to match a set target voltage. The wire electric discharge machining device includes an inter-electrode voltage measuring unit that measures the inter-electrode voltage, an actual amplitude calculating unit that calculates an amplitude of the measured inter-electrode voltage, and a target voltage correcting unit that corrects the target voltage in such a way that the calculated amplitude approaches the target amplitude that is set to a value larger than zero.

Abstract: A milling tool is configured from a shank part and a head with a cutting edge that is provided on the leading end of the shank part. The head comprises an expanding diameter section, the diameter of which expands gradually from the base end that contacts the shank part in the direction of the leading end, and a decreasing diameter section, the diameter of which gradually decreases from the maximum diameter section in the direction of the leading end. At least one cutting edge is provided on each of the expanding diameter section and the decreasing diameter section.

Abstract: In a T-shaped tool (10) in which a head (30) having cutting edges (36, 38) and a cylindrical shank (20) are fastened together: the shank comprises a super-hard alloy, and an engaging portion which engages with a tool main body is formed in a distal end portion thereof; the tool main body comprises a steel material, and an engaged portion which engages with the engaging portion of the shank is formed therein; and the engaging portion and the engaged portion are fastened in such a way as to be retained and prevented from rotating.

Abstract: This tool conveying device is provided with an indexing device comprising an input shaft, a first output shaft, and a second output shaft which is positioned adjacent and parallel to the first output shaft, wherein the input shaft is linked to a servo motor, the first output shaft rotates during rotation of the input shaft and the second output shaft stops at a prescribed angular position in a certain period during rotation of the input shaft and rotates in the remaining period during said rotation of the input shaft; a gripper; a turning part which is driven by the second output shaft of the indexing device and which supports the gripper; and a gripper opening/closing member which is driven by the first output shaft of the indexing device.