Patents Assigned to Makino Milling Machine Co., Ltd.
  • Publication number: 20210394306
    Abstract: A laser machining apparatus for machining a workpiece placed and fixed on a table by moving the irradiation position of a laser beam on the workpiece while irradiating the workpiece is provided with: a laser oscillator; a laser irradiation head that emits the laser beam from the laser oscillator toward the workpiece and that is provided with a galvano-scanner for moving a laser beam irradiation position on the surface of the workpiece in two directions; a parallel manipulator that changes the orientation of the laser irradiation head; a slide member that supports the parallel manipulator; and linear feed shaft device that moves the slide member in at least two orthogonal directions relatively to the table.
    Type: Application
    Filed: September 28, 2018
    Publication date: December 23, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventor: Kenichi YADA
  • Publication number: 20210398044
    Abstract: A production assistance system which generates steps for producing a product on the basis of an order including information which should specify the product to be produced, a quantity or count by which the product is to be produced, and a due date by which the production is to be completed is provided with an input unit for inputting the order; a schedule computation unit for generating, on the basis of the order input by the input unit, a schedule including information relating to a plurality of operation machines required to produce a product specified by the order, steps assigned to the respective operation machines, and a time required to execute each of the steps; a step division information providing unit for dividing the steps of the generated schedule into a plurality of tasks as information which can be interpreted and executed by the operation machines; and a step instruction unit for outputting instructions to the operation machines on the basis of the tasks from the step division information provi
    Type: Application
    Filed: October 31, 2018
    Publication date: December 23, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Yoshikazu HATTORI, Shinji IGARI, Takumi KODAMA, Wataru ARAI
  • Patent number: 11198204
    Abstract: This method for generating a tool path for processing a workpiece is provided with: a step for setting a first reference plane with respect to the workpiece; a step for setting, with respect to the workpiece, a second reference plant which is not parallel to the first reference plane; a step for interpolating, on the basis of the first reference plane and the second reference plane, a plurality of third reference planes, which are not parallel to each other, between the first reference plane and the second reference plane; a step in which partial tool paths for processing the workpiece are generated for each of the plurality of third reference planes on the basis of the corresponding third reference plane; and a step for generating a tool path by sequentially connecting the partial tool paths of the plurality of third reference planes.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: December 14, 2021
    Assignee: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Kyohei Suzuki, Kouji Ono
  • Publication number: 20210379709
    Abstract: A machining center is provided with: a base; a table that supports a workpiece; a main-shaft head that causes a tool to rotate around an axis of rotation of a main-shaft; a Z-axis drive device that causes the table to move with respect to the base along a Z axis parallel to the axis of rotation of the main-shaft; a W-axis drive device that causes the main-shaft head to move with respect to the base along a W axis parallel to the axis of rotation of the main-shaft; and a control device that controls the Z-axis drive device and the W-axis drive device so as to cause the tool to process the workpiece by causing the table and the main-shaft head to move along the Z axis and the W axis, respectively.
    Type: Application
    Filed: October 29, 2018
    Publication date: December 9, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventor: Yuji SANO
  • Publication number: 20210370424
    Abstract: A power supply device for an electric discharge machine includes a current supply unit for supplying a pulsed current to an electrode gap and a current regeneration unit for regenerating the current. The current supply unit includes a DC power supply, a first switching element, and a second switching element. The current regeneration unit includes a capacitor arranged between a first connection point between an electrode and the first switching element and a second connection point between a workpiece and the second switching element, and a third switching element which is arranged between a third connection point between the first connection point and the DC power supply and a fourth connection point between the second connection point and the capacitor and which is turned on from the start of current regeneration until the current value reaches zero, whereby regeneration current fall time is reduced.
    Type: Application
    Filed: October 31, 2018
    Publication date: December 2, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventor: Naoto YOKOYAMA
  • Publication number: 20210370425
    Abstract: A power supply device for an electric discharge machine includes a DC power supply which is connected in parallel to an electrode gap, a plurality of switching elements which are in parallel to each other and which are arranged between the electrode gap and the DC power supply, a current value acquisition unit for acquiring a value of a current, and an ON-OFF control unit which, during the time when the current value reaches a predetermined value until the time when the current starts to fall, sets a cycle for switching the plurality of switching elements from off to on to the same cycle, switches the plurality of switching elements from off to on in a predetermined order for each timing of a phase of 90°, which is 360° divided by the number of the plurality of switching elements, sets an ON-period of each of the plurality of switching elements based on a difference between the value of the current and the predetermined value, and performs ON-OFF control of the plurality of switching elements based on the cyc
    Type: Application
    Filed: October 31, 2018
    Publication date: December 2, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Masato SUZUKI, Naoto YOKOYAMA
  • Publication number: 20210333776
    Abstract: A control device for a machine tool, the control device being provided with an individual database that stores voice data and image data for the face for each of a plurality of persons in association with the respective person's ID, an input command database that stores commands that can be inputted into a machine tool, an imaging device that images the face of a person, a microphone that inputs a voice, and a microprocessor that processes the image data for the face imaged by the imaging device and the voice data inputted from the microphone. The microprocessor performs facial authentication on the basis of the image data of the face, and performs voice authentication on the basis of voice data inputted from the microphone. If the voice is a voice produced by a facially authenticated person, the microprocessor analyzes voice data, searches the input command database on the basis of the analysis result, and inputs a command corresponding to the voice data into the machine tool.
    Type: Application
    Filed: September 7, 2018
    Publication date: October 28, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Hitoshi SATO, Yasunori MASUMIYA, Tomoo YOSHIDA
  • Patent number: 11148241
    Abstract: A main shaft device is attached to a work machine. The main shaft device is provided with a main shaft that supports a tool or a workpiece, and a main shaft motor that causes the main shaft to rotate. The main shaft device is provided with bearings that are rolling bearings which support the main shaft in an inner race, and a housing and a rear housing that secure an outer race of the bearings. The housing and the rear housing are formed of a material having a coefficient of thermal expansion greater than that of the main shaft.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: October 19, 2021
    Assignee: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Takeshi Kawada, Teppei Nebuka
  • Patent number: 11148223
    Abstract: This laser processing machine, which moves a work piece, which is mounted on a table, and an optical head, which shines a laser light, relative to each other, and processes the work piece by irradiating the work piece with the laser light, is provided with: a calibration camera that is fixed to the optical head; a probe that is fixed to the optical head; and a calibration unit that has measurement reference points (Pc1, Pc2, Pc3, Pp1, Pp2, Pp3) for measuring the position of the calibration camera and the probe, and a processing portion that forms a processing mark (L1, L2) due to the laser light.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: October 19, 2021
    Assignee: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Hiroshi Toyama, Muneaki Beppu
  • Patent number: 11135693
    Abstract: This machine tool system is provided with a tool holder adaptor that has a flange having formed therein: a hole part that contains a tool holder; and an engagement part that engages with a hand of a self-propelled robot, wherein when transporting the tool holder to a machine tool from a tool storage that contains a plurality of tool holder adaptors, the self-propelled robot grasps the tool holder adaptor to transport the tool.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: October 5, 2021
    Assignee: MAKINO MILLING MACHINE CO., LTD.
    Inventor: Masahiro Shirone
  • Patent number: 11131342
    Abstract: In a moving body guiding device which supplies lubricating oil between a guiding surface of a supporting body and a sliding surface of the moving body and guides a moving body, a lubricating oil pocket having a periphery enclosed by a land portion is provided on the sliding surface of the moving body, a closed loop oil groove is formed along the inside of the land portion, a front portion and a rear portion inside the lubricating oil pocket communicate with one another by means of a lubricating oil pocket return passage at least partially opening in the oil groove, and lubricating oil that has accumulated in the rear portion, in a movement direction, concomitant with movement of the moving body, flows to the front portion in the movement direction.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: September 28, 2021
    Assignee: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Yoshio Hoshi, Kazumasa Kono
  • Publication number: 20210291309
    Abstract: A machine tool is provided with a main shaft configured to have a tool fitted to a distal end portion thereof, a tool magazine for holding a plurality of tools, a tool exchanging arm for exchanging tools between the tool magazine and the rotary main shaft, and a table for attaching a workpiece, wherein the machine tool machines the workpiece by causing the main shaft and the table to move relative to one another in accordance with a machining program, and wherein the machine tool: is provided with an image capturing device for capturing an image of the tool fitted to a tool holder, and an interference checking device which uses the machining program, and shape data relating to the workpiece, the tool, and the machine tool to simulate machining before machining is carried out, to check for the presence or absence of interference between at least the tool and the workpiece; and acquires the shape data relating to the tool from the interference checking device, generates a two-dimensional tool model from the acq
    Type: Application
    Filed: July 10, 2018
    Publication date: September 23, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Tadashi KASAHARA, Megumi FURUTA
  • Publication number: 20210276137
    Abstract: This machining program generation device is provided with: a storage unit that stores machining conditions for respective tool regions determined on the basis of the number of effective edges in a multi-blade tool; a contact region calculation unit that calculates a tool region which comes into contact with a workpiece during machining on the basis of the shapes of the workpiece and the edge portion of the tool and of a tool path; and a machining program generation unit that generates a machining program on the basis of the tool path and the machining conditions stored in the storage unit in association with the tool region coming into contact with the workpiece.
    Type: Application
    Filed: July 15, 2016
    Publication date: September 9, 2021
    Applicant: Makino Milling Machine Co., Ltd.
    Inventors: Jiro YASUKOCHI, Yasunori MASUMIYA, Kyohei SUZUKI
  • Publication number: 20210260678
    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.
    Type: Application
    Filed: June 19, 2019
    Publication date: August 26, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Yasuhiro OKAMOTO, Haruya KURIHARA
  • Patent number: 11045916
    Abstract: This machine tool comprises a machining chamber in which machining of a workpiece is performed, and a tool storage chamber in which a plurality of tools are stored. The machine tool is further provided with a partition which partitions the machining chamber and tool storage chamber from one another. The machine tool is positioned on the front side of the machining chamber, and is equipped with a first sliding door that moves in the width direction, and a second sliding door that is positioned on the front side of the tool storage chamber and that moves in the width direction. The first sliding door and second sliding door are positioned in such a manner that one of the sliding doors is positioned on the front side of the other sliding door, and when one of the sliding doors is opened, said door overlaps with the other sliding door.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: June 29, 2021
    Assignee: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Daisuke Takada, Keisuke Tange, Kazumasa Nakayasu
  • Patent number: 11009850
    Abstract: An electronic manual for a machine tool for displaying information related to operation, maintenance, or inspection of the machine tool, which is necessary for an operator, includes an operator-operated input part for inputting search conditions to search the electronic manual in accordance with intent of the operator in order to obtain necessary information, a machine-operated input part for selecting and inputting at least one item provided to the operator from the machine tool depending on a status of the machine tool, and a display part for displaying information related to operation, maintenance, or inspection of the machine tool corresponding to the input from the operator-operated input part or the machine-operated input part.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: May 18, 2021
    Assignee: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Tomofumi Nagatomo, Kayoko Ichimura
  • Patent number: 11007603
    Abstract: This laser processing machine, which processes a work piece mounted on a table by irradiating the work piece with a laser light, is provided with: an optical head having a nozzle that sprays a liquid to form a columnar liquid flow and introducing a laser light into the nozzle and shining said light; and an alignment adjustment device having a reflector that is disposed so as to face the optical head and reflects the laser light, and a light-shielding portion around the portion of the reflector that reflects the laser light, and adjusting the position or orientation of introduction of the laser light into the columnar liquid flow.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: May 18, 2021
    Assignee: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Hiroshi Toyama, Muneaki Beppu
  • Publication number: 20210129280
    Abstract: A main spindle device for a machine tool has a hollow main spindle, which is supported by a housing such that the hollow main spindle can rotate. The main spindle device is provided with: an annular cylinder, which is fixed to the housing, and is formed extending into the main spindle, said annular cylinder having an opening formed in the axis line direction of the main spindle; and a cooling path formed on the outer circumferential surface of the cylinder to face the inner circumferential surface of the main spindle.
    Type: Application
    Filed: March 10, 2017
    Publication date: May 6, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventor: Ikuma TAKAHASHI
  • Publication number: 20210107103
    Abstract: This machine tool has: a main shaft having a tool mounted on the tip thereof; a main shaft head that rotatably supports the main shaft; orthogonal triaxial linear feed shafts that move the main shaft and a table relative to one another; and a rotational feed shaft that is capable of changing the orientation of the rotational axis of the main shaft. The machine tool is provided with: a rotational feed shaft device that is not parallel to any of the linear feed shafts and that rotates the main shaft head around an inclined axis that intersects the rotational axis of the main shaft; and a main shaft head base that rotatably supports the main shaft head so that the point of intersection between the rotational axis and the inclined axis of the main shaft coincides with a defined reference point at the tip side of the main shaft.
    Type: Application
    Filed: March 31, 2017
    Publication date: April 15, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventor: Yuji SANO
  • Publication number: 20210109502
    Abstract: The present invention sets, as a point (POM) to be machined, a single machining point on a plurality of tool path rows, selects, as a machining point (PI(i)) of interest, a machining point in a prescribed range with the point to be machined as the center, calculates the tool orientation at the point to be machined by way of averaging the tool orientation of the selected machining point of interest, corrects data pertaining to the tool orientation of the point to be machined by way of the calculated average tool orientation, acquires the shape data of a workpiece to be machined and the shape data of a ball end mill to be used, performs an interference check for the workpiece and the ball end mill on the basis of the corrected tool orientation data, and generates a new tool path on the basis of data pertaining to the corrected tool orientation when no interference between the workpiece and the ball end mill occurs.
    Type: Application
    Filed: March 31, 2017
    Publication date: April 15, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Jiro YASUKOCHI, Kyohei SUZUKI, Soichiro ASAMI