Patents by Inventor Makoto Fujishima
Makoto Fujishima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150167694Abstract: A pump fixing structure may include a pump including a pump part, motor part, and a fixing base. The pump part may include an outlet port, inlet port and an impeller. The motor part may rotate the impeller and may include a stator which includes a drive coil and a stator core; and a motor case integrally molded with the stator, the motor case structuring an outer peripheral face of the motor part. The outer peripheral face is formed in a substantially circular truncated cone face shape having a draft angle for drawing the motor case from a die. The pump part may include a fixed part fixed to the fixing base. The fixing base may include a bent metal plate and is provided with a motor support part disposed on a lower side. A buffer member may be disposed between the motor part and the motor support part.Type: ApplicationFiled: June 6, 2013Publication date: June 18, 2015Inventors: Takaji Harada, Makoto Fujishima
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Patent number: 8629641Abstract: A machine tool includes a time calculation unit calculating the time for a spindle to arrive at a target rotational speed, and the time for a spindle head to arrive at a target position; a comparison unit comparing the time to arrive at the target rotational speed and the time to arrive at the target position; and a drive control unit controlling the drive of the spindle and the drive of the spindle head. The drive control unit controls the drive of the spindle head, when a determination is made that the time to arrive at the target rotational speed is longer than the time to arrive at the target position, such that the time for the spindle head to arrive at the target position is longer than the calculated time to arrive at the target position, and less than or equal to the calculated time to arrive at the target rotational speed. Accordingly, the machine tool can drive the spindle head that is a control object in a power-saving mode.Type: GrantFiled: November 19, 2010Date of Patent: January 14, 2014Assignee: Mori Seiki Co., Ltd.Inventors: Makoto Fujishima, Hiroki Nakahira
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Patent number: 8600542Abstract: A machine tool controlled to restart automatic operation for machining a workpiece from an interrupted point after the machine tool, which has been automatically operated by NC program commands, is caused to interrupt the automatic operation. The NC program commands are classified into a plurality of main groups with respect to the contents of motions for changing the machine state of the machine tool. When the automatic operation of the machine tool restarts after the automatic operation has been interrupted halfway, an order of execution of the NC program commands is determined such that the main groups are arranged in a prescribed order of execution, for automatically generating a machine state restoration command. The automatic operation of the machine tool can restart from the interrupted point without the need for the operator to manually generate or correct a command for restoring the machine tool to its machine.Type: GrantFiled: December 6, 2010Date of Patent: December 3, 2013Assignee: Mori Seiki Co., Ltd.Inventors: Makoto Fujishima, Hideki Takedomi
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Patent number: 8468911Abstract: A feed apparatus has a ball screw, a nut, a drive motor, a braking mechanism and a controller and moves a movable body vertically. When recognizing a movement command for rapid traverse relating to the movable body, the controller, when the movable body is to be moved upward, moves the movable body past a target position according to the movement command and then reverses the moving direction thereof and moves the movable body to the target position and stops it there, and, when the movable body is to be moved downward, moves the movable body directly to the target position and stops it there. After moving the movable body to the target position and stopping it there, the controller causes the drive motor to keep the position of the movable body at the stop position and causes the braking mechanism to brake the movement of the movable body.Type: GrantFiled: June 27, 2011Date of Patent: June 25, 2013Assignee: Mori Seiki Co., LtdInventors: Makoto Fujishima, Masami Yabuta
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Patent number: 8406913Abstract: A controller for machine tool 1 has a program analyzing section 12 for analyzing a machining program and extracting a fixed cycle command, a parameter setting section 15 for, on the basis of the extracted fixed command, determining an accuracy level being graded into a plurality of grades depending on how high machining accuracy is prioritized as compared with machining time in machining and setting parameters corresponding to the determined accuracy level and relating to control of the operation of a feed mechanism 30, and a drive control section 17 for controlling the feed mechanism 30 on the basis of the extracted fixed cycle command and the set parameters. The parameter setting section 15 calculates an arc-shaped movement trajectory of a tool moving around a virtual corner portion where two straight lines intersect with each other which corresponds to the parameters, and determines the accuracy level based thereon.Type: GrantFiled: December 17, 2010Date of Patent: March 26, 2013Assignee: Mori Seiki Co., Ltd.Inventors: Makoto Fujishima, Hideki Takedomi
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Patent number: 8355813Abstract: A machining status monitoring apparatus is provided on a machine tool, and has a plurality of actual CCD cameras for imaging the tool and workpiece from different view points and generating actual two-dimensional image data thereof, a virtual image generating section having a plurality of virtual CCD cameras corresponding to the actual CCD cameras, in which the tool and workpiece of three-dimensional model are imaged by the virtual CCD cameras from each point and virtual two-dimensional image data thereof are generated, and a display control section for selecting one virtual CCD camera corresponding to the virtual two-dimensional image data in which the distal end of the tool is not hidden by the workpiece among the generated two-dimensional image data, and displaying the actual two-dimensional image data generated by the actual CCD camera corresponding to the selected virtual CCD camera on a display device.Type: GrantFiled: September 4, 2009Date of Patent: January 15, 2013Assignee: Mori Seiki Co., Ltd.Inventors: Masahiko Mori, Xiaodong Tian, Bingyan Zhao, Makoto Fujishima, Zhe Jin
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Patent number: 8335666Abstract: An apparatus 1 for generating three-dimensional model data is provided with: two CCD cameras 13 and 14 for imaging an attached object attached to a machine tool to generate two-dimensional image data; a first model-data storing section 19 for storing model data of the attached object, a second model-data storing section 21 for storing the model data related to at least a part of the machine tool; an edge detecting section 17 for detecting edges; a shape-feature recognizing section 18 for recognizing a shape feature; an object recognizing section 20 for recognizing the model data of the attached object imparted with the recognized shape feature; and a model-data generating section 22 for generating three-dimensional model data including the attached object and a part of the machine tool.Type: GrantFiled: August 31, 2007Date of Patent: December 18, 2012Assignee: Intelligent Manufacturing Systems InternationalInventors: Xiaodong Tian, Makoto Fujishima
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Patent number: 8310534Abstract: The present invention relates to an apparatus for confirming three-dimensional model data or the like, capable of confirming easily, efficiently, and precisely whether three-dimensional model data including an attached object attached to a machine tool and at least a part of the machine tool good are accurate.Type: GrantFiled: August 31, 2007Date of Patent: November 13, 2012Assignees: Mori Seiki Co., Ltd., Intelligent Manufacturing Systems InternationalInventors: Xiaodong Tian, Makoto Fujishima
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Patent number: 8180477Abstract: A machining status monitoring apparatus is provided on a machine tool, and has an actual CCD camera for imaging the tool and the workpiece and generating actual two-dimensional image data thereof, a virtual image generating section having a virtual CCD camera corresponding to the actual CCD camera, in which the tool and workpiece of three-dimensional model are imaged by the virtual CCD camera and virtual two-dimensional image data thereof are generated, and a display control section for receiving from a control device of the machine tool, information relating to the coolant supply state and checking whether coolant is being supplied to the contact portion of the tool and the workpiece, and displaying on a display device actual two-dimensional image data when coolant is not being supplied and displaying on the display device virtual two-dimensional image data when coolant is being supplied.Type: GrantFiled: September 4, 2009Date of Patent: May 15, 2012Assignee: Mori Seiki Co., Ltd.Inventors: Masahiko Mori, Xiaodong Tian, Bingyan Zhao, Makoto Fujishima, Zhe Jin
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Patent number: 8180476Abstract: The present invention provides a machining state checking apparatus and method for checking whether a workpiece mounted on a machine tool and a workpiece fixture are shifted. A machining state checking apparatus has an actual CCD camera for imaging a workpiece fixed on a machine tool and a workpiece fixture and generating actual two-dimensional image data thereof, a virtual image generating section for generating virtual two-dimensional image data of the workpiece and workpiece fixture based on data on three-dimensional models of the workpiece and workpiece fixture, a comparing section for comparing the actual two-dimensional image data and virtual two-dimensional image data generated by the actual CCD camera and the virtual image generating section, respectively, and determining whether they match each other by comparing the portions corresponding to the workpiece and workpiece fixture in the actual two-dimensional image and the virtual two-dimensional images of the workpiece and workpiece fixture.Type: GrantFiled: September 3, 2009Date of Patent: May 15, 2012Assignee: Mori Seiki Co., Ltd.Inventors: Masahiko Mori, Xiaodong Tian, Bingyan Zhao, Makoto Fujishima, Zhe Jin
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Publication number: 20120100009Abstract: A pump control device for a pump device having a DC brushless motor as a drive source and a flow rate of the pump device is increased and decreased depending on a corresponding increase and decrease of a rotational speed of the DC brushless motor is structured so that, when the rotational speed of the DC brushless motor is higher than a predetermined speed, the DC brushless motor is controlled in an open loop control and, when the rotational speed of the DC brushless motor is lower than the predetermined speed, the DC brushless motor is controlled in a closed loop control on the basis of a measurement result of an actual rotating speed which is an actual rotational speed of the DC brushless motor.Type: ApplicationFiled: September 28, 2011Publication date: April 26, 2012Applicant: NIDEC SANKYO CORPORATIONInventor: Makoto FUJISHIMA
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Publication number: 20120096964Abstract: A feed apparatus has a ball screw, a nut, a drive motor, a braking mechanism and a controller and moves a movable body vertically. When recognizing a movement command for rapid traverse relating to the movable body, the controller, when the movable body is to be moved upward, moves the movable body past a target position according to the movement command and then reverses the moving direction thereof and moves the movable body to the target position and stops it there, and, when the movable body is to be moved downward, moves the movable body directly to the target position and stops it there. After moving the movable body to the target position and stopping it there, the controller causes the drive motor to keep the position of the movable body at the stop position and causes the braking mechanism to brake the movement of the movable body.Type: ApplicationFiled: June 27, 2011Publication date: April 26, 2012Applicant: MORI SEIKI CO., LTD.Inventors: Makoto Fujishima, Masami Yabuta
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Patent number: 8077327Abstract: Relative movement in X, Y and Z axis directions is made between a main spindle and a table 6 for application in a machine tool in which a work is machined. An emitting element 12 for irradiating laser beam 11 and a photosensitive element 13 are disposed on the table 6. A measuring tool 8 with its top end being shaped as a cone form is attached to the main spindle 4. The laser beam 11 is interrupted with the cone form portion 15 of the measuring tool 8 through relative movement between the table 6 and measuring tool 8 before and after machining a work. Detection signal of interruption is generated at the moment of interruption, position is detected, operation processing is performed so that difference in X, Y and Z axes before and after machining is obtained along with values for correction.Type: GrantFiled: March 25, 2009Date of Patent: December 13, 2011Assignee: Mori Seiki Co., Ltd.Inventors: Makoto Fujishima, Keizo Kashihara, Shizuo Nishikawa
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Patent number: 7994663Abstract: A motor may include a motor base plate, a bearing holder provided with a through hole whose both ends hold bearings and vertically disposed with respect to the motor base plate, a stator provided with a center hole and fixed to an outer peripheral face of the bearing holder, and a rotor having a shaft supported by the bearings, a rotor case fixed to the shaft, and a magnet fixed on an inner peripheral face of the rotor case. The bearing holder may be provided with a stepped part, protruded toward a radial direction. The stator may be provided with a first resin block structured so that an end face on a motor base plate side of the stator core is molded with resin to cover a coil wound around the stator core, and inner peripheral faces of the stator core and the first resin block structure the center hole, and the center hole of the stator is press-fitted and fixed to the bearing holder until an end face of the first resin block is abutted with the stepped part.Type: GrantFiled: November 30, 2009Date of Patent: August 9, 2011Assignee: Nidec Sankyo CorporationInventors: Takaji Harata, Makoto Fujishima
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Publication number: 20110190925Abstract: A controller for machine tool 1 has a program analyzing section 12 for analyzing a machining program and extracting a fixed cycle command, a parameter setting section 15 for, on the basis of the extracted fixed command, determining an accuracy level being graded into a plurality of grades depending on how high machining accuracy is prioritized as compared with machining time in machining and setting parameters corresponding to the determined accuracy level and relating to control of the operation of a feed mechanism 30, and a drive control section 17 for controlling the feed mechanism 30 on the basis of the extracted fixed cycle command and the set parameters. The parameter setting section 15 calculates an arc-shaped movement trajectory of a tool moving around a virtual corner portion where two straight lines intersect with each other which corresponds to the parameters, and determines the accuracy level based thereon.Type: ApplicationFiled: December 17, 2010Publication date: August 4, 2011Applicant: MORI SEIKI CO., LTD.Inventors: MAKOTO FUJISHIMA, HIDEKI TAKEDOMI
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Publication number: 20110190915Abstract: A machine tool is controlled to restart automatic operation thereof for machining a workpiece from an interrupted point after the machine tool, which has been automatically operated by NC program commands output from an NC apparatus, is caused to interrupt the automatic operation. The NC program commands are classified into a plurality of main groups with respect to the contents of motions for changing the machine state of the machine tool. When the automatic operation of the machine tool restarts after the automatic operation has been interrupted halfway, an order of execution of the NC program commands is determined such that the main groups are arranged in a prescribed order of execution, for automatically generating a machine state restoration command.Type: ApplicationFiled: December 6, 2010Publication date: August 4, 2011Applicant: MORI SEIKI CO., LTD.Inventors: Makoto Fujishima, Hideki Takedomi
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Publication number: 20110169440Abstract: A machine tool includes a time calculation unit calculating the time for a spindle to arrive at a target rotational speed, and the time for a spindle head to arrive at a target position; a comparison unit comparing the time to arrive at the target rotational speed and the time to arrive at the target position; and a drive control unit controlling the drive of the spindle and the drive of the spindle head. The drive control unit controls the drive of the spindle head, when a determination is made that the time to arrive at the target rotational speed is longer than the time to arrive at the target position, such that the time for the spindle head to arrive at the target position is longer than the calculated time to arrive at the target position, and less than or equal to the calculated time to arrive at the target rotational speed. Accordingly, the machine tool can drive the spindle head that is a control object in a power-saving mode.Type: ApplicationFiled: November 19, 2010Publication date: July 14, 2011Applicant: MORI SEIKI CO., LTD.Inventors: Makoto FUJISHIMA, Hiroki NAKAHIRA
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Publication number: 20100133928Abstract: A motor may include a motor base plate, a bearing holder provided with a through hole whose both ends hold bearings and vertically disposed with respect to the motor base plate, a stator provided with a center hole and fixed to an outer peripheral face of the bearing holder, and a rotor having a shaft supported by the bearings, a rotor case fixed to the shaft, and a magnet fixed on an inner peripheral face of the rotor case. The bearing holder may be provided with a stepped part, protruded toward a radial direction. The stator may be provided with a first resin block structured so that an end face on a motor base plate side of the stator core is molded with resin to cover a coil wound around the stator core, and inner peripheral faces of the stator core and the first resin block structure the center hole, and the center hole of the stator is press-fitted and fixed to the bearing holder until an end face of the first resin block is abutted with the stepped part.Type: ApplicationFiled: November 30, 2009Publication date: June 3, 2010Applicant: NIDEC SANKYO CORPORATIONInventors: Takaji HARATA, Makoto FUJISHIMA
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Publication number: 20100063616Abstract: A machining status monitoring apparatus is provided on a machine tool, and has an actual CCD camera for imaging the tool and the workpiece and generating actual two-dimensional image data thereof, a virtual image generating section having a virtual CCD camera corresponding to the actual CCD camera, in which the tool and workpiece of three-dimensional model are imaged by the virtual CCD camera and virtual two-dimensional image data thereof are generated, and a display control section for receiving from a control device of the machine tool, information relating to the coolant supply state and checking whether coolant is being supplied to the contact portion of the tool and the workpiece, and displaying on a display device actual two-dimensional image data when coolant is not being supplied and displaying on the display device virtual two-dimensional image data when coolant is being supplied.Type: ApplicationFiled: September 4, 2009Publication date: March 11, 2010Applicant: MORI SEIKI CO., LTD.Inventors: Masahiko Mori, Xiaodong Tian, Bingyan Zhao, Makoto Fujishima, Zhe Jin
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Publication number: 20100063615Abstract: A machining status monitoring apparatus is provided on a machine tool, and has a plurality of actual CCD cameras for imaging the tool and workpiece from different view points and generating actual two-dimensional image data thereof, a virtual image generating section having a plurality of virtual CCD cameras corresponding to the actual CCD cameras, in which the tool and workpiece of three-dimensional model are imaged by the virtual CCD cameras from each point and virtual two-dimensional image data thereof are generated, and a display control section for selecting one virtual CCD camera corresponding to the virtual two-dimensional image data in which the distal end of the tool is not hidden by the workpiece among the generated two-dimensional image data, and displaying the actual two-dimensional image data generated by the actual CCD camera corresponding to the selected virtual CCD camera on a display device.Type: ApplicationFiled: September 4, 2009Publication date: March 11, 2010Applicant: MORI SEIKI CO., LTD.Inventors: Masahiko Mori, Xiaodong Tian, Bingyan Zhao, Makoto Fujishima, Zhe Jin