Patents by Inventor Ryuichi Fujiwara
Ryuichi Fujiwara 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).
-
Patent number: 8534169Abstract: The present invention relates to a machining system etc. capable of highly accurately machining a workpiece even in a case where the workpiece is deflected. A machining system 1 is configured with a lathe 10 having end portion supporting mechanisms 13, 15 for supporting both end portions of an elongated workpiece W horizontally, a tool rest 20 for holding a tool, a feed mechanism for moving the tool rest 20 in three orthogonal directions, and a control device 25 for controlling the feed mechanism, and a non-contact measuring device 30 for measuring the deflection shape of the workpiece W when the workpiece W is rotated. The control device 25 moves the tool along the deflection shape measured by the non-contact measuring device 30.Type: GrantFiled: May 11, 2010Date of Patent: September 17, 2013Assignee: Mori Seiki Co., Ltd.Inventors: Satoshi Miyamoto, Ryuichi Fujiwara, Shizuo Nishikawa, Hisayoshi Morita
-
Patent number: 8397609Abstract: A machining system 1 comprises a lathe 10 having end portion supporting mechanisms 13, 15 for supporting an elongated workpiece W horizontally, center rests 21 for supporting the middle portion of the workpiece W, an adjustment mechanism for adjusting the supported position of the workpiece W by adjusting the height positions of the center rests 21, a tool rest 20, and a control device 25, and a non-contact measuring device 30 for measuring the deflection amount of the workpiece W at portions thereof supported by the center rests 21 when the workpiece W is rotated. The control device 25 is configured to adjust the height positions of the center rests 21 by controlling the adjustment mechanism on the basis of the measured deflection amount, so that the height positions of both end portions of the workpiece W being rotated and the middle portion thereof become the same.Type: GrantFiled: May 10, 2010Date of Patent: March 19, 2013Assignee: Mori Seiki Co., Ltd.Inventors: Satoshi Miyamoto, Ryuichi Fujiwara, Shizuo Nishikawa, Hisayoshi Morita
-
Publication number: 20100288089Abstract: The present invention relates to a machining system etc. capable of highly accurately machining a workpiece even in a case where the workpiece is deflected. A machining system 1 is configured with a lathe 10 having end portion supporting mechanisms 13, 15 for supporting both end portions of an elongated workpiece W horizontally, a tool rest 20 for holding a tool, a feed mechanism for moving the tool rest 20 in three orthogonal directions, and a control device 25 for controlling the feed mechanism, and a non-contact measuring device 30 for measuring the deflection shape of the workpiece W when the workpiece W is rotated. The control device 25 moves the tool along the deflection shape measured by the non-contact measuring device 30.Type: ApplicationFiled: May 11, 2010Publication date: November 18, 2010Applicant: MORI SEIKI CO., LTD.Inventors: Satoshi Miyamoto, Ryuichi Fujiwara, Shizuo Nishikawa, Hisayoshi Morita
-
Publication number: 20100288088Abstract: A machining system 1 comprises a lathe 10 having end portion supporting mechanisms 13, 15 for supporting an elongated workpiece W horizontally, center rests 21 for supporting the middle portion of the workpiece W, an adjustment mechanism for adjusting the supported position of the workpiece W by adjusting the height positions of the center rests 21, a tool rest 20, and a control device 25, and a non-contact measuring device 30 for measuring the deflection amount of the workpiece W at portions thereof supported by the center rests 21 when the workpiece W is rotated. The control device 25 is configured to adjust the height positions of the center rests 21 by controlling the adjustment mechanism on the basis of the measured deflection amount, so that the height positions of both end portions of the workpiece W being rotated and the middle portion thereof become the same.Type: ApplicationFiled: May 10, 2010Publication date: November 18, 2010Applicant: MORI SEIKI CO., LTD.Inventors: SATOSHI MIYAMOTO, RYUICHI FUJIWARA, SHIZUO NISHIKAWA, HISAYOSHI MORITA
-
Patent number: 7255519Abstract: The present invention provides a machine tool capable of suppressing cost increase of a cover even when a long workpiece is machined. A machining unit 3 by which the spindle 2 is supported to be movable in X-axis, Y-axis, and Z-axis directions relative to the machining table 5; and a shielding mechanism 100 provided in said machining unit 3 to prevent chips and coolant from scattering out of a machining area.Type: GrantFiled: October 13, 2006Date of Patent: August 14, 2007Assignee: Mori Seiki Co., Ltd.Inventors: Shinn Tanoue, Ryuichi Fujiwara, Toshiaki Kotaka, Hikaru Ishigaki
-
Publication number: 20070031204Abstract: The present invention provides a machine tool capable of suppressing cost increase of a cover even when a long workpiece is machined. A machining unit 3 by which the spindle 2 is supported to be movable in X-axis, Y-axis, and Z-axis directions relative to the machining table 5; and a shielding mechanism 100 provided in said machining unit 3 to prevent chips and coolant from scattering out of a machining area.Type: ApplicationFiled: October 13, 2006Publication date: February 8, 2007Inventors: Shinn Tanoue, Ryuichi Fujiwara, Toshiaki Kotaka, Hikaru Ishigaki
-
Patent number: 7172375Abstract: The present invention provides a machine tool realizing high-speed movement of a spindle and thus reducing the machining time without any increase in size of the whole machine. A machining unit 3 by which a spindle 2 with a tool T attached thereto is supported to be relatively movable in X-axis, Y-axis, and Z-axis directions is mounted on a long bed 4 having a plurality of machining areas a1 to a4 arranged in one direction, and the machining unit 3 is movable in the arrangement direction of the machining areas.Type: GrantFiled: June 23, 2005Date of Patent: February 6, 2007Assignee: Mori Seiki Co., Ltd.Inventors: Shinn Tanoue, Ryuichi Fujiwara, Toshiaki Kotaka, Hikaru Ishigaki
-
Publication number: 20060291971Abstract: The present invention provides a machine tool realizing high-speed movement of a spindle and thus reducing the machining time without any increase in size of the whole machine. A machining unit 3 by which a spindle 2 with a tool T attached thereto is supported to be relatively movable in X-axis, Y-axis, and Z-axis directions is mounted on a long bed 4 having a plurality of machining areas a1 to a4 arranged in one direction, and the machining unit 3 is movable in the arrangement direction of the machining areas.Type: ApplicationFiled: June 23, 2005Publication date: December 28, 2006Inventors: Shinn Tanoue, Ryuichi Fujiwara, Toshiaki Kotaka, Hikaru Ishigaki
-
Patent number: 7044693Abstract: In a double housing machining center, a table having a plurality of T slots on its top surface is arranged substantially in a horizontal direction. A lower space, into which chips are received, is provided under the table. A plurality of through-holes, being in fluid communication with bottom portions of the T slots and passing through the table to reach the lower space, is scattered and formed in the table. The chips introduced into the T slots are discharged into the lower space through the through-holes. Thus, the chips splashed down onto the table and introduced into the T slots are readily removed and the cleaning work of the table is reduced.Type: GrantFiled: September 13, 2004Date of Patent: May 16, 2006Assignee: Mori Seiki Co., Ltd.Inventor: Ryuichi Fujiwara
-
Patent number: 7013543Abstract: In a vertical machining center, a spindle head is movable in three mutually transverse axes directions relative to a workpiece and a table is arranged below. A vertical stocker is disposed in the vicinity of a machining area and stocks the bar workpiece in a vertical direction. A hand portion which grips and releases the bar workpiece is provided on the spindle head. The spindle head moves between the stocker and the table so that the hand portion transfers the bar workpiece and performs putting and removing the bar workpiece to the stocker and a chuck of the table, respectively.Type: GrantFiled: October 23, 2003Date of Patent: March 21, 2006Assignee: Mori Seiki Hitech Co., Ltd.Inventors: Naoki Iwabuchi, Hajime Kimura, Ryuichi Fujiwara
-
Publication number: 20050069392Abstract: In a double housing machining center, a table having a plurality of T slots on its top surface is arranged substantially in a horizontal direction. A lower space, into which chips are received, is provided under the table. A plurality of through-holes, being in fluid communication with bottom portions of the T slots and passing through the table to reach the lower space, is scattered and formed in the table. The chips introduced into the T slots are discharged into the lower space through the through-holes. Thus, the chips splashed down onto the table and introduced into the T slots are readily removed and the cleaning work of the table is reduced.Type: ApplicationFiled: September 13, 2004Publication date: March 31, 2005Applicant: MORI SEIKI CO., LTD.Inventor: Ryuichi Fujiwara
-
Publication number: 20040194859Abstract: The present invention provides a black hexavalent chromium-free plating treatment system in which the corrosion resistance of a surface of a metal part is improved by activating the surface of a zinc-plated coating of the metal part in a treatment solution in a dilute nitric acid activation treatment step, subsequently forming a black coating in an inorganic salt solution containing trivalent chromium and iron components as main ingredients in a black chromate treatment step, forming a conversion coating in a solution of inorganic salt and organic acid containing trivalent chromium and silica as main ingredients in a finish treatment step, and drying the resulting metal part. Therefore, even in a black trivalent chromate coating, sufficient corrosion resistance and sufficient strength are obtained. Moreover, a black trivalent chromate coating with heavy feeling is obtained for the first time.Type: ApplicationFiled: February 20, 2004Publication date: October 7, 2004Inventors: Yoshitaka Asou, Yasuhiro Shikata, Toshio Shikata, Ryuichi Fujiwara
-
Publication number: 20040111850Abstract: In a vertical machining center, a spindle head is movable in three mutually transverse axes directions relative to a workpiece and a table is arranged below. A vertical stocker is disposed in the vicinity of a machining area and stocks the bar workpiece in a vertical direction. A hand portion which grips and releases the bar workpiece is provided on the spindle head. The spindle head moves between the stocker and the table so that the hand portion transfers the bar workpiece and performs putting and removing the bar workpiece to the stocker and a chuck of the table, respectively.Type: ApplicationFiled: October 23, 2003Publication date: June 17, 2004Inventors: Naoki Iwabuchi, Hajime Kimura, Ryuichi Fujiwara