Patents Assigned to Mori Seiki Co., LTD
  • Patent number: 10663947
    Abstract: A method of machining a workpiece may include continuously rotating the workpiece, continuously rotating a tool having at least one cutting surface, and positioning the tool relative to the workpiece so that the at least one cutting surface engages the workpiece at a first discrete location at a periphery of the workpiece. The method may further include continuing to rotate the workpiece and the tool so that the at least one cutting surface engages a second discrete location at the periphery of the workpiece, and controlling a tool surface velocity VT relative to the workpiece surface velocity VW so that the first and second discrete locations are discontinuous. The tool may make multiple iterative passes over the workpiece to engage subsequent discrete locations, wherein the first discrete location, second discrete location, and multiple subsequent discrete locations may form a machined surface that extends continuously around the workpiece.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: May 26, 2020
    Assignee: MORI SEIKI CO., LTD.
    Inventors: Gregory A. Hyatt, Nitin Chaphalkar
  • Patent number: 10610988
    Abstract: A workpiece lifting and lowering device is provided with: a workpiece base supported as to be capable of being lifted and lowered, and mounting a workpiece; a link mechanism connected to the workpiece base, and lifting and lowering the workpiece base by converting a rotation motion to a lifting and lowering motion; and a driving mechanism rotationally driving the link mechanism through a transmission member.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: April 7, 2020
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Hiroshi Yasuda, Yutaka Nishimura, Masami Harada
  • Patent number: 10160077
    Abstract: A method, non-transitory computer-readable storage medium, and tool changing system for changing tools on a machine. The tool changing system includes a tool magazine, a tool transporter, and an automatic tool changer (ATC). The ATC includes a tool holder and a tool changer. The tool magazine is configured to store at least one tool received at the tool loading station. The tool transporter is configured to transport a tool from the tool loading station or the tool magazine to a tool transfer position of the ATC, and to hold the tool at the tool transfer position during an automatic tool change process. The tool holder is configured to hold the tool at the tool transfer position during the automatic tool change process when the tool transporter is not positioned at the tool transfer position. The tool changer is configured to provide the tool at the tool transfer position to a tool change position of a machine during the automatic tool change process.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: December 25, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventor: Robert George
  • Patent number: 10145332
    Abstract: A method for adjusting the volume of the combustion chamber of an engine with high accuracy is provided. A cylinder head (200) of an engine includes a recess (204) constituting part of the combustion chamber of the engine, and a mating surface (202) for a cylinder block. The method for adjusting the volume of the combustion chamber includes measuring a plurality of portions of the surface of the recess (204) and a plurality of portions of the mating surface (202) by using a displacement meter, calculating differences between the respective measurement values of the mating surface (202), and the design shape of the mating surface (202) in a state in which the design shape of the surface of the recess (204) is fitted with respect to the respective measurement values of the recess (204), and deciding the cutting amount of the mating surface (202) based on the calculated differences and cutting the mating surface (202) by the decided cutting amount.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: December 4, 2018
    Assignee: DMG Mori Seiki Co., Ltd.
    Inventors: Shizuo Nishikawa, Hiroki Nakao
  • Publication number: 20180339382
    Abstract: A machine tool includes a rotatable spindle, a spindle drive, a tool magazine, a tool changer including a rotating shaft, a rotating shaft drive motor, an angular position detector, a tool change arm having gripping units at both ends, and a controller. After interchanging a first tool mounted on the spindle and a second tool held in a tool pot, when rotating the tool change arm to an intermediate position, rotation of the spindle is started as soon as the second tool mounted on the spindle and the gripping unit are out of contact with each other.
    Type: Application
    Filed: August 2, 2018
    Publication date: November 29, 2018
    Applicant: DMG MORI SEIKI CO., LTD.
    Inventor: Satoshi Miyamoto
  • Patent number: 10137545
    Abstract: A method, non-transitory computer-readable storage medium, and tool changing system for changing tools on a machine. The tool changing system includes a tool magazine, a tool transporter, and an automatic tool changer (ATC). The ATC includes a tool holder and a tool changer. The tool magazine is configured to store at least one tool received at the tool loading station. The tool transporter is configured to transport a tool from the tool loading station or the tool magazine to a tool transfer position of the ATC, and to hold the tool at the tool transfer position during an automatic tool change process. The tool holder is configured to hold the tool at the tool transfer position during the automatic tool change process when the tool transporter is not positioned at the tool transfer position. The tool changer is configured to provide the tool at the tool transfer position to a tool change position of a machine during the automatic tool change process.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: November 27, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventor: Robert George
  • Patent number: 10065281
    Abstract: A machine tool includes a rotatable spindle, a spindle drive, a tool magazine, a tool changer including a rotating shaft, a rotating shaft drive motor, an angular position detector, a tool change arm having gripping units at both ends, and a controller. After interchanging a first tool mounted on the spindle and a second tool held in a tool pot, when rotating the tool change arm to an intermediate position, rotation of the spindle is started as soon as the second tool mounted on the spindle and the gripping unit are out of contact with each other.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: September 4, 2018
    Assignee: DMG Mori Seiki Co., Ltd.
    Inventor: Satoshi Miyamoto
  • Patent number: 10048093
    Abstract: A magnetism detecting element detects a leakage magnetism from a scale, on which a magnetic signal with a constant period is recorded, and a relative position between the scale and the magnetism detecting element is detected. The magnetism detecting elements are arranged, along a detection direction of the magnetic signal relative to the scale, in a pattern with a pitch of ½n (n is a prime number of 3 or more) of a wavelength ?? of a signal output by the element. Furthermore, as the pattern for cancelling m odd-order harmonics, the m-th power of 2 magnetism detecting elements are arranged within a range in which a pitch distance L of the magnetism detecting element farthest in the detection direction is expressed by L=(??/2)×(?+?+ 1/7+ . . . 1/(2m+1)).
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 14, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Masaaki Kusumi, Yusuke Takei, Shigeru Ishimoto, Mitsugu Yoshihiro
  • Patent number: 10031512
    Abstract: An NC program generating and editing apparatus 2 includes an interactive input module 9, a first memory 10, an NC program generator 11, a second memory 12, a program editor 13, a change checker 14 and a data updater 15. The change checker 14 determines whether a changed portion of an edited NC program consists of only a change related to a preset NC code, and when the changed portion consists of only a change related to the NC code, corresponding basic data is updated by the data updater 15.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: July 24, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Kyoichi Tateno, Hironari Sakamoto
  • Patent number: 10024691
    Abstract: A magnetism detecting element detects a leakage magnetism from a scale, on which a magnetic signal with a constant period is recorded, and a relative position between the scale and the magnetism detecting element is detected. The magnetism detecting elements are arranged, along a detection direction of the magnetic signal relative to the scale, in a pattern with a pitch of ½n (n is a prime number of 3 or more) of a wavelength ?? of a signal output by the element. Furthermore, as the pattern for cancelling m odd-order harmonics, the m-th power of 2 magnetism detecting elements are arranged within a range in which a pitch distance L of the magnetism detecting element farthest in the detection direction is expressed by L=(??/2)×(?+?+ 1/7+ . . . 1/(2m+1)).
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: July 17, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Masaaki Kusumi, Yusuke Takei, Shigeru Ishimoto, Mitsugu Yoshihiro
  • Patent number: 10022832
    Abstract: A system, method and computer-readable medium for fine-tuning speed selection for reducing machine chatter. The system includes circuitry configured to determine a predetermined speed of the machine. The circuitry identifies a stability lobe based on the predetermined speed of the machine and selects a first set of fine-tuning speeds from a range of machine speeds corresponding to the determined stability lobe. Further, the circuitry causes the machine to operate at one or more of the first set of fine-tuning speeds.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: July 17, 2018
    Assignee: DMG Mori Seiki Co., Ltd.
    Inventors: Zachary Piner, Ke Ding, Mehdi Namazi, Kyle Konishi
  • Patent number: 9999954
    Abstract: A machine tool that can output an abnormal noise is provided. A machine tool includes: an input unit configured to receive an input of a setting for defining an operation mode of the machine tool; a storage unit configured to store sound generated during a normal operation of the machine tool and acquired in advance; a sound collection unit configured to collect sound in the machining area; a sound selection unit configured to extract a part of sound collected in the machining area in accordance with the setting input for outputting sound to the outside of the machine tool; and a sound output unit configured to output sound extracted by the sound selection unit to the outside of the machining area.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: June 19, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Yoichi Okamoto, Eiichiro Gomi, Hiroki Nakao, Yutaka Saito
  • Patent number: 9970788
    Abstract: A scale device includes a scale main body having at least two incremental tracks, at least two or more incremental signal detection heads for detecting incremental signals from the incremental tracks, and an operation processing unit that generates, based upon detection outputs by the two or more incremental signal detection heads, relative positional information in a measuring direction of a measuring axis and parallel movement amount information in a direction orthogonal to the measuring direction.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: May 15, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Kayoko Taniguchi, Shigeaki Maruyama, Masaaki Kusumi
  • Patent number: 9962800
    Abstract: To provide a tool changer of a machine tool that makes it possible to surely execute machining as designated in a machining program without any need for the editing of the machining program or the replacement of tools and without complicating the device structure. The tool changer 11 includes a tool correspondence table A showing a correspondence relation between a program-designated tool T0001 designated in a machining program O0001 and an actual use tool T0003 actually used according to the machining contents designated in the machining program, wherein the actual use tool corresponding to the program-designated tool is found by using the tool correspondence table A and the found actual use tool is decided as a subsequent process tool.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: May 8, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Takayuki Nishioka, Yoshihiro Takiguchi
  • Patent number: 9937598
    Abstract: A cutting tool cover set to a cutting tool which includes a hollow shaft body and at least one insert attached to an end face of the shaft body and cuts by bringing the insert into contact with a work while rotating the shaft body. The cutting tool cover includes: a body portion fixed to a top end portion of the shaft body; and an extension portion extended outward from the circumferential edge of the body portion in the entire circumference of the top end portion of the body portion to cover the surface of the work.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 10, 2018
    Assignees: SUBARU CORPORATION, DMG MORI SEIKI CO., LTD., MITSUBISHI HITACHI TOOL ENGINEERING, LTD.
    Inventors: Hisayuki Oode, Shinya Matsuo, Manabu Saito, Morihiro Hideta, Koji Sato, Yasuhiro Inamasu, Shoujirou Touma
  • Patent number: 9937589
    Abstract: A method, non-transitory computer-readable medium, and controller for manufacturing a predetermined object. The method includes machining a plurality of separate components of a work piece based on a final geometry of the predetermined object. The plurality of separate components is selected based on the final geometry of the predetermined object. A first material is added to the work piece such that a first single continuous surface is formed over, or together with, the machined surfaces of the plurality of separate components which is selected based on the final geometry of the predetermined object.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: April 10, 2018
    Assignees: Advanced Research for Manufacturing Systems, LLC, DMG Mori Seiki Co., Ltd.
    Inventor: Masakazu Soshi
  • Patent number: 9927799
    Abstract: A numerical control (NC) program generating apparatus includes a standby state analyzing unit 12 analyzing an NC program to determine whether a block in which an operation unit is brought into a standby state is present, and when such a block is present, determining whether a power source 39, 45, 46 corresponding to the operation unit can be stopped at the time of execution of the block to specify a stoppable block, and a power operation code inserting unit 13 inserting an operation code for stopping the corresponding power source 39, 45, 46 at the time of execution of the stoppable block into the NC program and inserting an operation code for restarting the power source 39, 45, 46 after the execution of the block into the NC program.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: March 27, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Susumu Mitsuhashi, Makoto Fujishima, Takayuki Nakamura, Hiroshi Shimanoe
  • Publication number: 20180079039
    Abstract: A workpiece lifting and lowering device is provided with: a workpiece base supported as to be capable of being lifted and lowered, and mounting a workpiece; a link mechanism connected to the workpiece base, and lifting and lowering the workpiece base by converting a rotation motion to a lifting and lowering motion; and a driving mechanism rotationally driving the link mechanism through a transmission member.
    Type: Application
    Filed: June 1, 2015
    Publication date: March 22, 2018
    Applicant: DMG MORI SEIKI CO., LTD.
    Inventors: Hiroshi YASUDA, Yutaka NISHIMURA, Masami HARADA
  • Patent number: 9897991
    Abstract: A machine tool includes a movable structure 3, a numerical control unit 22, an external input unit 39 having a dedicated operation key for inputting an operation signal associated with at least a movement end point to which the movable structure 3 is moved, a display unit 39 displaying an image, a display control unit 25 controlling the display on the display unit 39, an input control unit 24 processing a signal input from the external input unit 39, and a movement path setting unit 32 receiving the operation signal input from the external input unit 39 and setting a movement path for moving the movable structure 3 corresponding to the operation signal to the movement end point according to a predetermined setting condition. The display control unit 25 displays an image relating to the movement path set by the movement path setting unit 32 on the display unit 39.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: February 20, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Hiroshi Yahaba, Takaaki Soga
  • Patent number: D830411
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: October 9, 2018
    Assignees: DMG MORI SEIKI CO., LTD., DMG MORI SEIKI AKTIENGESELLSCHAFT
    Inventor: Dominic Schindler