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公开(公告)号：JP2003011036A
公开(公告)日：2003-01-15
申请号：JP2001198220
申请日：2001-06-29
Applicant: Ntn Corp , エヌティエヌ株式会社
Inventor： FUJIKAWA YOSHIO , OZAKI TAKAMI
Abstract: PROBLEM TO BE SOLVED: To provide an attachment main shaft device fitted to a machine tool, having high rotational accuracy of a tool and holding rigidity, and capable of improving machining accuracy and attaining high speed rotation especially in high speed cutting with a small-diameter tool.
SOLUTION: A main shaft 1 is supported in a housing 3 by bearings 7, 9, and a driving source 5 is contained in the housing 3. A support part of the main shaft 1 by the bearings 7, 9 and a chuck means 8 are formed by an integrated member. The chuck means 8 is formed by providing the tip of the main shaft 1 with a tool fitting hole 2 in which a shank part of a tool 4 is interference-fitted. The chuck means 8 enlarges the minimum inside diameter of the tool fitting hole 2 by thermal expansion to attach and detach the tool 4. The chuck means 8 may elastically deform the tool fitting hole 2 with external force to attach and detach the tool 4. The bearings 7, 9 are respectively hydrostatic gas bearings. In the hydrostatic gas thrust bearing 9, the rear end face 1a of the main shaft 1 is a baring surface.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：提供一种装配到机床上的安装主轴装置，具有高的刀具转动精度和保持刚性，并且能够提高加工精度并获得高速旋转，特别是在具有小直径的高速切削 工具。 解决方案：主轴1通过轴承7,9支撑在壳体3中，驱动源5容纳在壳体3中。主轴1的轴承7,9的支撑部分和卡盘装置8是 由综合成员组成。 卡盘装置8通过为主轴1的尖端设置有工具装配孔2而形成，工具4的柄部被干涉配合。 卡盘装置8通过热膨胀扩大工具装配孔2的最小内径，以附接和拆卸工具4.卡盘装置8可以用外力使工具装配孔2弹性变形以附接和拆卸工具4。 轴承7,9分别为静液压轴承。 在静水压推力轴承9中，主轴1的后端面1a为弯曲面。
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公开(公告)号：DE10310567A1
公开(公告)日：2003-10-02
申请号：DE10310567
申请日：2003-03-11
Applicant: NTN CORP OSAKA
Inventor： FUJIKAWA YOSHIO , TAKAHASHI TORU , NAGANO YOSHITAKA , KOIKE TAKASHI , IWAMOTO KENICHI
IPC: G01P3/487 , F16C41/00 , G01D5/14 , G01D5/245 , G01P3/44 , G01P3/488 , G01D11/16 , G01D5/20 , F16C19/52 , F16C33/76
Abstract: To provide a compact bearing assembly equipped with a rotation sensor capable of detecting not only pulse signals for detecting the number of revolution, but also a home position signal, the bearing assembly equipped with the rotation sensor includes a rotatable member ( 2 ) and a non-rotatable member ( 3 ) with rolling elements ( 4 ) interposed between the rotatable and non-rotatable members ( 2 ) and ( 3 ) to permit the rotatable member ( 2 ) to be rotatable relative to the non-rotatable member ( 3 ). The rotatable member ( 2 ) is provided with a magnetic encoder ( 7 ) and the non-rotatable member ( 3 ) is provided with magnetic sensors ( 8 A) to ( 8 C). The magnetic encoder ( 7 ) includes first and second to-be-detected elements ( 7 A) and ( 7 B) each having a plurality of equally spaced, opposite magnetic poles defined therein so as to alternate with each other in a direction circumferentially thereof. The first to-be-detected element also has a magnetic characteristic disturbing element ( 15 ) provided at a predetermined site on a circumference of the magnetic encoder ( 7 ) for agitating a periodicity of the opposite magnetic poles. The two magnetic sensors ( 8 A) and ( 8 B) for detecting the first to-be-detected element ( 7 A) are spaced in a circumferential direction a distance greater than a circumferentially extending width of the disturbing element ( 15 ), and are so positioned as to be held in substantially phase-matched relation with a cycle of repetition of the opposite magnetic poles.
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3.发明专利
公开(公告)号：JP2004311914A
公开(公告)日：2004-11-04
申请号：JP2003159729
申请日：2003-06-04
Inventor： YADA YUJI , SHIMIZU SHIGEO , TOKUNAGA HIROAKI , FUJIKAWA YOSHIO
CPC classification number: Y02W30/828
Abstract: PROBLEM TO BE SOLVED: To make a defect correction with the stable quality by the defect correction in combination with each mechanism rationally and effectively, and to enhance the fine pattern correction efficiency. SOLUTION: In a defect correcting method and device, a repair paste is filled in a defect part on a plane surface substrate provided with a fine pattern (rib) to bake, and a rib prescribed section projecting material such as a surplus projecting paste projected from a rib prescribed section or a rib molding material excessively adhered to a rib adhering defect part is shaped. This device comprises a repair paste filling mechanism 50, a paste bake mechanism 60, a mechanical cutting and shaping mechanism 70 for cutting and shaping the rib prescribed section projecting material mechanically, a vertically moving mechanism 80 which moves perpendicular to the flat surface substrate, a head part mounting the filling mechanism, the baking mechanism and the cutting and shaping mechanism, and a horizontal positioning mechanism 40 which moves relatively in a flat surface direction in parallel to the flat surface substrate. Each mechanism mounted on the head part is interlocked with the vertical moving mechanism. COPYRIGHT: (C)2005,JPO&NCIPI
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公开(公告)号：JP2003302254A
公开(公告)日：2003-10-24
申请号：JP2002107733
申请日：2002-04-10
Inventor： FUJIKAWA YOSHIO , KOIKE TAKASHI , TAKAHASHI TORU , IWAMOTO KENICHI
Abstract: PROBLEM TO BE SOLVED: To provide a bearing with a rotary sensor capable of increasing a resolution while securing a magnetic flux density detected by a magnetic sensor.
SOLUTION: In this bearing with the rotary sensor, a detected part 7 and a magnetic detection part 8 are installed on a rolling bearing 1 having a rotating side race 2 and a fixed side race 3. The detected part 7 is a ring-shaped member having a plurality of N and S magnetic poles alternately and equally-spaced in the circumferential direction, and installed on the rotating side race 2. The magnetic detection part 8 contains the magnetic sensor 13, and installed on the fixed side race 3. The magnetic detection part 8 contains two yokes 14 and 15 forming magnetic circuits between the plurality of magnetic poles with one polarity of the plurality of magnetic poles fitted to the detected part 7 and the magnetic sensor 13 and between the magnetic sensor 13 and the plurality of magnets with the other polarity. These yokes 14 and 15 are formed in multi- teeth yokes having a plurality of detecting projected parts 14a and 15a opposed to the magnetic poles of the detected part 7.
COPYRIGHT: (C)2004,JPOAbstract translation: 要解决的问题：提供一种具有能够在确保由磁性传感器检测到的磁通密度的同时提高分辨率的旋转传感器的轴承。 解决方案：在带旋转传感器的轴承中，检测部件7和磁检测部件8安装在具有旋转侧座圈2和固定侧座圈3的滚动轴承1上。检测部件7是环 形状的构件，其具有在圆周方向上交替且等间隔的多个N和S磁极，并且安装在旋转的侧座圈2上。磁性检测部分8包含磁传感器13，并安装在固定侧座圈3上 磁检测部分8包含两个磁轭14和15，它们在多个磁极之间形成磁路，磁极具有与检测部分7和磁传感器13以及磁传感器13和多个磁体之间的多个磁极的一个极性 的磁极与另一极性。 这些磁轭14和15形成在具有多个与被检测部分7的磁极相对的检测突出部分14a和15a的多齿磁轭中。（C）2004，JPO
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公开(公告)号：JP2008298275A
公开(公告)日：2008-12-11
申请号：JP2007148385
申请日：2007-06-04
Inventor： FUJIKAWA YOSHIO , HIRATA JUNICHI
IPC: F16C32/06
Abstract: PROBLEM TO BE SOLVED: To provide a static pressure gas bearing capable of easily adjusting a clearance between a rotor and a radial bearing pad.
SOLUTION: The static pressure gas bearing supporting the rotor comprises the radial bearing pad 3 supporting the rotor in a radial direction, a linear guide 1c moving the radial bearing pad 3, and a ball stud 4 rockingly uniting the radial bearing pad 3 to a linear guide 1c. A direction in which the linear guide 1c moves the radial bearing pad 3 intersects with a direction in which the rotation center of the rotor and the ball stud 4 are united. In regard to a change amount of a bearing clearance between the outer peripheral surface 2c of the rotor and the radial bearing pad 3, a movement adjusting amount for moving the radial bearing pad 3 by the linear guide 1c is large, so that a minute amount of the bearing clearance can be accurately adjusted.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供能够容易地调节转子和径向轴承瓦块之间的间隙的静压气体轴承。 支撑转子的静压气体轴承包括沿径向支撑转子的径向轴承瓦块3，移动径向轴承瓦块3的直线导轨1c和使径向轴承瓦块3摆动地组合的球形螺柱4 到线性引导件1c。 直线导轨1c移动径向轴承瓦块3的方向与转子和球螺柱4的旋转中心结合的方向相交。 关于转子的外周面2c与径向支承垫3之间的轴承间隙的变化量，用于通过直线导向件1c移动径向轴承瓦片3的移动调整量大，使得微量 的轴承间隙可以精确调整。 版权所有（C）2009，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2007247762A
公开(公告)日：2007-09-27
申请号：JP2006071534
申请日：2006-03-15
Inventor： FUJIKAWA YOSHIO
IPC: F16C32/06
Abstract: PROBLEM TO BE SOLVED: To provide a static pressure gas bearing spindle with a rotating part having a reduced axial length without lowering both the rotating accuracy of the rotating part and the performance of an object fixing means.
SOLUTION: In the static pressure gas bearing spindle 1, gas is distributed between a ventilation hole 29 and the object fixing means via a rotation side ventilation passage 32 provided in a thrust plate 4 and a fixation side ventilation passage 30 provided in the fixing part to change gas pressure in the object fixing means. The rotation side ventilation passage 32 which has one end connected to the motor side surface of the thrust plate 4 is provided in the thrust plate 4, so as not to require for providing a conventional ventilating sleeve. Thus, the rotating part 2 has a reduced axial length, compared with that of a conventional static pressure gas bearing spindle, without reducing the axial length of a static pressure gas journal bearing.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 解决的问题：为了提供具有减小的轴向长度的旋转部件的静压气体轴承主轴，而不降低旋转部件的旋转精度和物体固定装置的性能。 解决方案：在静压气体轴承心轴1中，气体经由设置在推力板4中的旋转侧通气通道32和设置在该固定侧通气通道30中的通气孔29和物体固定装置之间分配。 固定部件以改变物体固定装置中的气体压力。 在推力板4上设有一端连接推力板4的马达侧表面的旋转侧通气通路32，以便不需要提供常规的通气套筒。 因此，与传统的静压气体轴承主轴相比，旋转部件2具有减小的轴向长度，而不减小静压气体轴颈轴承的轴向长度。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2006300024A
公开(公告)日：2006-11-02
申请号：JP2005126301
申请日：2005-04-25
Inventor： HIRATA JUNICHI , HARAGUCHI TAKASHI , FUJIKAWA YOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive static pressure gas bearing spindle having improved efficiency with small energy loss.
SOLUTION: The static pressure gas bearing spindle 1 comprises: a nozzle 62 for jetting gas; a main shaft 2 to be rotated with a plurality of rotary blades receiving the gas jetted from the nozzle 62; and static pressure gas bearings 3, 4 for journaling the main shaft 2. The rotary blades each include: a first face formed on the front side in the direction of rotating the main shaft 2; and a second face formed on the rear side. The first face has a front flat portion formed on the outer periphery side of the main shaft 2 and a front curved portion formed on the inner periphery side of the main shaft 2 protruding in the direction of the rotating the rotary blades. In the state where the outer periphery side end of the front flat portion is moved closest to the outlet of the nozzle 62, the direction of jetting the gas is substantially parallel to the front flat portion. The second face has a rear curved portion formed protruding in the direction of rotating the main shaft 2.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供一种廉价的静压气体轴承心轴，其具有改善的效率并且具有小的能量损失。 静压气体轴承锭子1包括：用于喷射气体的喷嘴62; 主轴2与多个旋转叶片一起旋转，接收从喷嘴62喷出的气体; 以及用于对主轴2进行记录的静压气体轴承3,4。旋转叶片各自包括：在主轴2的旋转方向上形成在前侧的第一面; 以及形成在后侧的第二面。 第一面具有形成在主轴2的外周侧上的前平面部分和形成在主轴2的内周侧上的，沿着旋转叶片旋转的方向突出的前弯曲部分。 在前平坦部分的外周侧端部最靠近喷嘴62的出口移动的状态下，喷射气体的方向基本上平行于前平坦部分。 第二面具有形成为沿主轴2旋转的方向突出的后弯曲部分。（C）2007，JPO＆INPIT
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公开(公告)号：JP2006039356A
公开(公告)日：2006-02-09
申请号：JP2004221529
申请日：2004-07-29
Inventor： SARUTA MASAHIRO , FUJIKAWA YOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a fine pattern correcting device and a coating stylus for correction that facilitate history management of the coating stylus, and can prevent trouble due to abrasion beforehand and maintain the quality of coating correction. SOLUTION: The fine pattern correcting device is provided for correcting a pattern defect part of a fine pattern provided on a plane substrate by applying correcting liquid with the coating stylus 13. An IC tag 17 is provided to a base part 15 of the coating stylus 13. Further, a head 18 which reads and write data out of and to the IC tag 17 is provided in a position where the head is communicable with the IC tag 17. Further, the correcting device is provided with a coating frequency writing means 41 of recording the coating frequency of the coating stylus 13 to the IC tag 17 through the head 18. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种用于校正的精细图案校正装置和涂层触针，其有利于涂层触针的历史管理，并且可以预防预防磨损的问题并保持涂层校正的质量。 解决方案：精细图案校正装置用于通过用涂层触针13施加校正液来校正设置在平面基板上的精细图案的图案缺陷部分。IC标签17设置在 另外，在IC标签17的头部可以连接的位置，设置读取和写入IC标签17的数据的头部18.此外，校正装置具有涂层频率写入 用于通过头部18将涂层触针13的涂覆频率记录到IC标签17的装置41.权利要求：（C）2006，JPO＆NCIPI
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公开(公告)号：JP2009036343A
公开(公告)日：2009-02-19
申请号：JP2007202977
申请日：2007-08-03
Inventor： FUJIKAWA YOSHIO , HIRATA JUNICHI
Abstract: PROBLEM TO BE SOLVED: To provide a turning device which can make a lightweight turning body, reduce inertia or the like by compacting the turning body.
SOLUTION: This turning device comprises a turning gantry 2 containing a hollow cylindrical projection section, a plurality of axial pads 6 which supports the turning gantry 2 in an axial direction by a static pressure of a compressed gas and a plurality of radial pads 3 which supports the turning gantry 2 in a radial direction by the static pressure of the compressed gas in a projection part.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种能够制造轻型车削体的车削装置，通过压实车削体来减小惯性等。 解决方案：该车削装置包括一个包含中空圆柱形突出部分的转动台架2，多个轴向垫片6，其通过压缩气体的静压力沿轴向支撑转动门架2，以及多个径向垫片 3，其通过突出部分中的压缩气体的静压在径向方向上支撑转台2。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2004138194A
公开(公告)日：2004-05-13
申请号：JP2002304677
申请日：2002-10-18
Inventor： FUJIKAWA YOSHIO , HIRATA JUNICHI
Abstract: PROBLEM TO BE SOLVED: To provide by a simple means an inexpensive gas bearing having excellent durability and bearing performance, and its manufacturing method.
SOLUTION: Bearing surfaces 4a, 5a provided to bearing sleeves 4, 5 and an outer peripheral surface 1a provided to a main shaft 1 are faced each other through a minute bearing clearance 29. In the gas bearing in which the main shaft 1 is supported without contact to the bearing sleeves 4, 5 by pressure of a gas in the bearing clearance 29, at least either of the bearing surfaces 4a, 5a of the bearing sleeves 4, 5 or the outer peripheral surface 1a of the main shaft 1 is made up of metallic materials. Surface layers 27, 28 formed by dispersing to implant fine particles of solid lubricant are formed on the bearing surfaces 4a, 5a or the outer peripheral surface 1a. The surface layers 27, 28 are formed by spraying to inject the fine particles of the solid lubricant on the bearing surfaces 4a, 5a or the finished outer peripheral surface 1a by high speed air currents.
COPYRIGHT: (C)2004,JPO
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