Patents Assigned to Yamazaki Mazak Corporation
  • Patent number: 12186839
    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.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: January 7, 2025
    Assignees: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION, Yamazaki Mazak Corporation
    Inventors: Yasunori Sakai, Kazuhiro Ishibashi, Yasuyuki Tanaka, Atsushi Suzuki, Seigo Ouchi
  • Publication number: 20240424628
    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.
    Type: Application
    Filed: September 4, 2024
    Publication date: December 26, 2024
    Applicant: Yamazaki Mazak Corporation
    Inventors: Hironori NISHI, Toshihito OKUDA, Akira ISEKI
  • Publication number: 20240408709
    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.
    Type: Application
    Filed: August 21, 2024
    Publication date: December 12, 2024
    Applicant: Yamazaki Mazak Corporation
    Inventors: Seiichi YOSHIDA, Atsushi HATTORI, Yoshihiko FUJIWARA
  • Publication number: 20240408695
    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.
    Type: Application
    Filed: August 21, 2024
    Publication date: December 12, 2024
    Applicant: Yamazaki Mazak Corporation
    Inventors: Eiji MATSUBARA, Masayasu MINATANI, Kentaro NIWA
  • Publication number: 20240408689
    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.
    Type: Application
    Filed: August 23, 2024
    Publication date: December 12, 2024
    Applicant: Yamazaki Mazak Corporation
    Inventors: Seigo OUCHI, Atsushi SUZUKI, Kazuhiro ISHIBASHI
  • Publication number: 20240383070
    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.
    Type: Application
    Filed: July 26, 2024
    Publication date: November 21, 2024
    Applicant: Yamazaki Mazak Corporation
    Inventors: Keisuke KAGEYAMA, Kazuya SHIMAMOTO, Tetsuya NAKANISHI, Keita HACHIYA
  • Patent number: 12135537
    Abstract: A tool load displaying method for a machine tool includes inputting a machining program that specifies a plurality of tools used during machining work and that specifies machining processes which constitute the machining work and each of which is performed by using each of the plurality of tools. At least one piece of load information corresponding to each of the plurality of tools during each of the at least one machining process is calculated. Selected load information is selected from the at least one piece of load information. The plurality of tools are displayed.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: November 5, 2024
    Assignee: YAMAZAKI MAZAK CORPORATION
    Inventors: Jun Matsui, Yuuki Yamamoto, Takuro Katayama, Morikuni Kimura
  • Publication number: 20240326188
    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.
    Type: Application
    Filed: June 14, 2024
    Publication date: October 3, 2024
    Applicant: Yamazaki Mazak Corporation
    Inventors: Naoya TANAKA, Takeshi SUZUKI, Teppei HASEGAWA, Masatoshi MATSUMOTO
  • Publication number: 20240300069
    Abstract: A machine tool includes a tool holder configured to hold a grindstone. A workpiece holder is configured to hold a workpiece. At least one actuator is configured to move the tool holder in a movement direction relative to the workpiece holder. A motor is different from the at least one actuator and is configured to move one holder out of the tool holder and the workpiece holder along a control axis. Actuator control circuitry is configured to control the at least one actuator to move the tool holder in the movement direction. Motor control circuitry is configured to control the motor to control the one holder to be stationary in a direction along the control axis. Contact detection circuitry is configured to detect a contact between the grindstone and the workpiece based on a change in a control value of the motor.
    Type: Application
    Filed: May 17, 2024
    Publication date: September 12, 2024
    Applicant: Yamazaki Mazak Corporation
    Inventors: Yuki YAMAMOTO, Yosuke MORI
  • Patent number: 12066811
    Abstract: An input assistance method includes: a plurality of steps in which setting-information based on which the machine tool is configured to be controlled to machine a workpiece so as to make a product is input. A setting step in which a selected information is to be input is selected among the plurality of steps. The selected information of the plurality of steps constitutes the setting-information. A setting interface via which the selected information is input is displayed. Whether inputting the selected information has been completed is determined. Information indicating that inputting the selected information has been completed is displayed, when inputting the selected information is determined to have been completed. The plurality of steps includes a first step in which a shape of the product is input and a second step in which a shape of the workpiece and a material of the workpiece are input.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: August 20, 2024
    Assignee: YAMAZAKI MAZAK CORPORATION
    Inventors: Takuya Kumasaka, Yuuki Yamamoto, Takuro Katayama, Morikuni Kimura
  • Patent number: 12053850
    Abstract: A workpiece installation method includes obtaining a reference image that shows a reference workpiece whose posture has been adjusted, setting workpiece reference lines on a boundary of a first image area occupied by the reference workpiece in the reference image, obtaining a measurement image that shows a workpiece, generating, using a processor, a measurement combined image in which workpiece reference lines are superimposed on the measurement image and which shows the workpiece reference lines pass through positions respectively identical to workpiece reference line positions, and adjusting a posture of the workpiece such that a boundary of a second image area occupied by the workpiece in the measurement combined image is shown to be substantially parallel to or substantially coincident with the workpiece reference lines.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: August 6, 2024
    Assignee: YAMAZAKI MAZAK CORPORATION
    Inventors: Kazuya Horibe, Kazumasa Maruta, Hiromasa Yamamoto, Hyunkoo Park, Masatoshi Itoh, Ryuichi Mizukami
  • Patent number: 12050450
    Abstract: A machine tool management system includes a machine tool, a memory, a display, and a control circuit. The control circuit is configured to record, in the memory, a time point at which detection information with respect to a machine tool is detected and the detection information corresponding to the time point; determine selected detection information among the detection information to satisfy a determination condition; record, in the memory, the selected detection information corresponding to the time point; display a list of the selected detection information according to predetermined display items; extract from the memory at least part of the detection information including one of the selected detection information corresponding to one display item selected among the display items listed on the display; and to display a graph of a change over time in data included in the at least part of the detection information.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: July 30, 2024
    Assignee: YAMAZAKI MAZAK CORPORATION
    Inventors: Hiromasa Yamamoto, Masatoshi Itoh, Kenji Sano, Tatsuya Matsuda, Kento Yoshida, Jumpei Kitayama
  • Publication number: 20240189915
    Abstract: A workpiece support includes a rotating shaft configured to support a workpiece at a leading end portion, a second support supporting the rotating shaft rotatably about a first axis and configured to move the rotating shaft along the first axis, a first support provided between the tool and the second support along the first axis and including a through hole into which a guide bushing unit is configured to be inserted and into which the leading end portion of the rotating shaft is configured to be inserted, and an attachment provided in contact with an outer surface of the leading end portion of the rotating shaft. The guide bushing unit is configured to support the workpiece when the guide bushing unit is in the through hole. At least a part of the attachment is displaceable in a direction away from the first axis.
    Type: Application
    Filed: February 20, 2024
    Publication date: June 13, 2024
    Applicant: Yamazaki Mazak Corporation
    Inventors: Jojiro KIMURA, Hiroshi YAMANE, Hiroshi KONDO, Yuta MIYASHITA
  • Publication number: 20240189913
    Abstract: A workpiece support includes a rotating shaft, a second support, a first support, and an air supplier. The rotating shaft is configured to support a workpiece at the leading end portion. The second support supports the rotating shaft rotatably about a first axis of the rotating shaft. The first support is provided between a tool and the second support along the first axis and has a through hole into which a guide bushing unit is configured to be inserted and into which the leading end portion of the rotating shaft is configured to be inserted. The guide bushing unit is configured to support the workpiece when the guide bushing unit is in the through hole. An ejection opening is provided on an inner circumferential surface of the through hole. The air supplier is configured to supply air to the first support via the ejection opening.
    Type: Application
    Filed: February 22, 2024
    Publication date: June 13, 2024
    Applicant: Yamazaki Mazak Corporation
    Inventors: Jojiro KIMURA, Hiroshi YAMANE, Hiroshi KONDO, Yuta MIYASHITA
  • Publication number: 20240181586
    Abstract: A coolant discharger includes a rotator, a fluid passage, and a nozzle. The rotator is rotatable about a rotation axis together with a workpiece and has a through hole extending along the rotation axis. The fluid passage is provided in the through hole to supply a coolant toward the workpiece. The nozzle is connected to the rotator to be connected to the fluid passage to discharge the coolant from the nozzle toward the workpiece in a discharging direction away from the rotation axis. At least a part of the nozzle is movable along the rotation axis.
    Type: Application
    Filed: June 6, 2023
    Publication date: June 6, 2024
    Applicant: Yamazaki Mazak Corporation
    Inventors: Eri ASAI, Masahiro MISHINA, Yuki YAMAMOTO
  • Patent number: 11998990
    Abstract: A machine tool includes a workpiece spindle being rotatable about a rotation axis of the workpiece and configured to hold a workpiece such that the workpiece. A tool holding device is rotatable about a tool rotation axis and configured to hold a turning tool via which turning is performed on the workpiece. A movement mechanism is configured to move the tool holding device such that the turning tool rotates relatively to the workpiece toward an arbitrary direction perpendicular to the rotation axis of the workpiece. Control circuitry is configured to execute a machining program, to perform the turning, which includes an additional code which designates a target cutting direction of the arbitrary cutting direction, and to control the movement mechanism to move the turning tool in the target cutting direction with respect to the workpiece while the control circuitry executes the additional code.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: June 4, 2024
    Assignee: YAMAZAKI MAZAK CORPORATION
    Inventors: Kentaro Hayashi, Yasuharu Sumida, Morikuni Kimura, Masato Yoshida
  • Patent number: 11992913
    Abstract: A workpiece support device includes a shaft rotatable about a shaft rotation axis of the shaft, a first support, a first reciprocating mechanism, and a first connecting rod having one end and another end. The shaft extends along a longitudinal direction of a workpiece. The first support includes a first support roller that is rotatable about a first roller rotation axis orthogonal to the shaft rotation axis and that is configured to contact the workpiece to support the workpiece. The first reciprocating mechanism has one end connected to the first support and is configured to reciprocate in a first expansion-contraction axis direction. The one end of the first connecting rod is rotatably connected to the first support. The another end of the first connecting rod is connected to the shaft such that the another end of the first connecting rod is rotatable together with the shaft.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: May 28, 2024
    Assignee: YAMAZAKI MAZAK CORPORATION
    Inventors: Keisuke Kageyama, Kazuya Shimamoto, Keita Hachiya
  • Patent number: 11938559
    Abstract: A stir pin includes a base end portion configured to be held rotatably about a first axis, a stirring portion provided to project from a shoulder member to be rotatable about the first axis together with the base end portion, and an intermediate portion including a second portion connected to the stirring portion to be rotatable about the first axis together with the stirring portion and having a second diameter passing through the first axis, and a first portion provided between and connected to the base end portion and the second portion to be rotatable about the first axis together with the base end portion and the second portion. The first portion has an end surface to which the second portion is connected and which has a maximum diameter larger than the second diameter. The end surface has a ring-shaped receiving surface configured to receive a material waste.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: March 26, 2024
    Assignee: YAMAZAKI MAZAK CORPORATION
    Inventors: Seigo Ouchi, Eiji Matsubara, Masayasu Minatani, Toru Murakami
  • Patent number: 11940086
    Abstract: A table rotation device includes a bearing assembly, a table support member, a support block, and a cooling block. The bearing assembly includes a fixed ring, a movable ring, and rolling elements provided between the fixed ring and the movable. The movable ring is rotatable about the rotation axis. The table support member is connected to the movable ring so as to fix a position of the table support member relative to a position of the movable ring. The support block is connected to the fixed ring so as to fix a position of the support block relative to a position of the fixed ring. The cooling block is connected to at least one of the fixed ring and the support block such that the cooling block is in contact with both the fixed ring and the support block. The cooling block provides a cooling passage.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: March 26, 2024
    Assignee: YAMAZAKI MAZAK CORPORATION
    Inventors: Jojiro Kimura, Makoto Tahara, Nobuhiro Sakai
  • Patent number: 11940769
    Abstract: A method for editing a machining program includes obtaining tool information specifying a tool mountable on a machine tool. A program editing window and at least one assistance window are displayed. The program editing window shows a program code of the machining program to control the machine tool. Each of the assistance window selectively shows the tool information and a control method. The tool is to be controlled according to the control method. In the program code, an insertion position at which a new code is to be inserted into the program code is specified. Selected information is selected from the tool information when the tool information is shown in the at least one assistance window. A command corresponding to the selected information is inserted into the program code at the insertion position.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: March 26, 2024
    Assignee: YAMAZAKI MAZAK CORPORATION
    Inventors: Hiroaki Matsuzawa, Yuuki Yamamoto, Takuro Katayama, Morikuni Kimura