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1. 发明专利

JP2014046412A Spindle device 有权
标题翻译：主轴装置
公开(公告)号：JP2014046412A
公开(公告)日：2014-03-17
申请号：JP2012191660
申请日：2012-08-31
申请人： Nsk Ltd , 日本精工株式会社
发明人： OGURI SHOICHIRO , INAGAKI YOSHIFUMI , KATSUNO YOSHIAKI
IPC分类号： B23Q11/00 , B23B19/02 , B23Q11/08 , F16C19/16 , F16C33/78 , F16C33/80 , F16J15/54
摘要： PROBLEM TO BE SOLVED: To provide a spindle device which uses shaft bearings capable of high speed rotation with a dmn value of 1,000,000 or greater, and which prevents flinger deformation due to centrifugal force, while maintaining a satisfactory waterproofing function, and in which internal stress is decreased during flinger rotation to reduce deformation in a radial direction.SOLUTION: A flinger 40 includes: a cylindrical boss part 42 externally fitted to a rotating shaft 11; an inclined part 43 extending from a front end part of the boss part 42 in a shaft direction, and inclining to the other end part side of the boss part 42 in the shaft direction toward an outside in a radial direction; and an annular part 44 extending from the inclined part 43 in the shaft direction. The flinger 40 has a specific gravity which is smaller than the one of the rotating shaft 11, and is made of a material with a high specific strength.
摘要翻译：要解决的问题：提供一种主轴装置，其使用能够以1,000,000或更大的dmn值进行高速旋转的轴承轴承，并且防止由于离心力引起的流动变形，同时保持令人满意的防水功能，并且其中内应力在抛光器旋转期间减小，以减小径向变形。抛光器40包括：外部装配到旋转轴11的圆柱形凸台部42; 倾斜部43从凸台部42的前端部沿轴向延伸，并且在轴向朝向径向向外侧倾斜到凸台部42的另一端部侧; 以及从倾斜部43沿轴向延伸的环状部44。挡泥板40的比重小于旋转轴11的比重，并且由具有高比强度的材料制成。

2. 发明专利

JP2012067906A Bearing device, main spindle device of machine tool and machine tool 有权
标题翻译：轴承装置，机床和机床主要主轴装置
公开(公告)号：JP2012067906A
公开(公告)日：2012-04-05
申请号：JP2010235639
申请日：2010-10-20
申请人： Nsk Ltd , 日本精工株式会社
发明人： KENMOCHI KENTA , KATSUNO YOSHIAKI , YONEYAMA HIROKI , OGURI SHOICHIRO
IPC分类号： F16C41/00 , B23B19/02 , F16C33/66 , F16C35/12 , G01L5/00
摘要： PROBLEM TO BE SOLVED: To provide a bearing device that can accurately measure an axial load acting on a rotating shaft directly from a rotating member by using a compact sensor, and to provide a main spindle device of a machine tool and the machine tool.SOLUTION: The front end of the rotating shaft 11 is supported by a pair of angular ball bearings 20, 30 which are applied with constant-position preloads, and the rear end is rotatably supported by a cylindrical rolling bearing 40. An encoder 84 in which characteristics of a surface to be detected are alternately varied is arranged at the outer peripheral surface of an inter-inner ring seat 81 arranged between inner rings 22, 32 of the pair of angular ball bearings 20, 30. In the surface to be detected of the encoder 84, a portion at which pitches of the characteristics which are varied with respect to the circumferential direction are continuously varied with respect to the axial direction is formed of a single row in the axial direction. Furthermore, a detection part 90 of the sensor 82 which is arranged so as to oppose the surface to be detected of the encoder 84 detects changes of the characteristics of the surface to be detected, and measures the axial load acting on the rotating shaft 11.
摘要翻译：要解决的问题：提供一种轴承装置，其可以通过使用紧凑型传感器来直接从旋转构件精确地测量作用在旋转轴上的轴向载荷，并且提供机床和机器的主轴装置工具。解决方案：旋转轴11的前端由一对角度滚珠轴承20,30支撑，该对角轴承20,30施加恒定位置的预载荷，后端由圆柱滚子轴承40可旋转地支撑。编码器在布置在一对角球轴承20,30的内圈22,32之间的内圈环81的外周面上配置有要检测的表面的特性交替变化的图84。在表面〜可以检测出编码器84，相对于圆周方向变化的特性的间距相对于轴向方向连续变化的部分由沿轴向的单列形成。此外，传感器82的与编码器84的待检测表面相对配置的检测部90检测被检测表面的特性的变化，并且测量作用在旋转轴11上的轴向载荷。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2014047856A Spindle device 有权
标题翻译：主轴装置
公开(公告)号：JP2014047856A
公开(公告)日：2014-03-17
申请号：JP2012191663
申请日：2012-08-31
申请人： Nsk Ltd , 日本精工株式会社
发明人： OGURI SHOICHIRO , INAGAKI YOSHIFUMI , KATSUNO YOSHIAKI
IPC分类号： F16C33/80 , B23B19/02 , B23Q11/00 , B23Q11/08 , F16C19/16 , F16C19/54 , F16J15/447
摘要： PROBLEM TO BE SOLVED: To provide a spindle device and a flinger for the spindle device capable of preventing deformation of the flinger due to centrifugal force while keeping high-speed rotating performance of a million or more dmn value of a used bearing and a good water-proofing function.SOLUTION: A metallic member 72 is composed of first and second metallic members 70 and 71, the first metallic member 70 is a spacer having a cylindrical portion 70a extended in the axial direction, and the second metallic member 71 is a spacer extended to the radial outer side with respect to the cylindrical portion 70a, and kept into contact with an axial rear face 70d of the cylindrical portion 70a, and an axial front face of an inner ring 62. The flinger 40 has a cylindrical boss portion 40 externally fitted to the cylindrical portion 70a of the first metallic member 70, and an extended portion 45 extended to the radial outer side from the boss portion 42, and composed of a fiber-reinforced composite material. L>L' is satisfied when L is an axial length of the boss portion 42, and L' is an axial length of an outer peripheral face of the cylindrical portion 70a to which the boss portion 42 is externally fitted.
摘要翻译：要解决的问题：提供一种用于主轴装置的主轴装置和抛油环，其能够防止由于离心力而导致的抛油板变形，同时保持所使用的轴承和良好水的百万分之一以上的dmn值的高速旋转性能金属构件72由第一金属构件70和第二金属构件71构成，第一金属构件70是具有沿轴向延伸的圆筒部70a的间隔件，第二金属构件71是间隔件延伸到相对于圆筒部70a的径向外侧，并且与圆筒部70a的轴向后表面70d和内环62的轴向前表面接触。挡板40具有圆柱形的凸起部40 外部装配到第一金属构件70的圆筒部70a以及从凸台部42延伸到径向外侧的延伸部45，并且由纤维强化组合物 ite材料。当L是凸台部分42的轴向长度时，L> L'，并且L'是凸台部分42外部嵌合的圆筒部分70a的外周面的轴向长度。

4. 发明专利

JP2014046413A Spindle device, and flinger for spindle device 有权
标题翻译：主轴装置和用于主轴装置的起动器
公开(公告)号：JP2014046413A
公开(公告)日：2014-03-17
申请号：JP2012191661
申请日：2012-08-31
申请人： Nsk Ltd , 日本精工株式会社
发明人： OGURI SHOICHIRO , KATSUNO YOSHIAKI
IPC分类号： B23Q11/00 , B23B19/02 , B23Q11/08 , F16C19/16 , F16C33/80 , F16J15/447
摘要： PROBLEM TO BE SOLVED: To provide a spindle device which uses shaft bearings capable of high speed rotation with a dmn value of 1,000,000 or greater, and which prevents flinger deformation due to centrifugal force, while maintaining a satisfactory waterproofing function, and to provide a flinger for the spindle device.SOLUTION: A flinger 40 has a flinger body 41 which comprises: first and second annular metal members 70 and 71 that are externally fitted to a rotating shaft respectively; a cylindrical boss part 42 externally fitted to a cylindrical part formed on the first and second metal members 70 and 71; an inclined part 43 extending from the boss part 42 to an outside in a radial direction, oppositely arranged in a shaft direction to an end surface of a housing in the shaft direction, and inclining toward an end surface in the shaft direction toward the outside in the radial direction; and a circular part 44 extending from the inclined part 43 in the shaft direction, and oppositely arranged in the radial direction to an outer peripheral surface of the housing H. The flinger body 41 has a specific gravity which is smaller than the one of the first and second metal members 70 and 71, and is made from a light metallic material with a high specific strength.
摘要翻译：要解决的问题：提供一种主轴装置，其使用能够以1,000,000或更大的dmn值进行高速旋转的轴承轴承，并且在保持良好的防水功能的同时防止由于离心力引起的气泡变形，并提供旋转器旋转器40具有挡板体41，该挡板主体41包括：第一和第二环形金属构件70和71，其分别外部安装在旋转轴上; 圆筒形凸台部42，其外嵌于形成在第一金属构件70和第二金属构件71上的圆筒部; 倾斜部43从凸台部42延伸到径向外侧，在轴向上相对于壳体的轴向的端面相反地配置，并且朝轴向朝向外侧的端面倾斜径向方向以及从倾斜部43沿轴向延伸并且沿径向相对配置到壳体H的外周面的圆形部44.挡板体41的比重比第一和第二金属构件70和71，并且由具有高比强度的轻金属材料制成。

5. 发明专利

JP2012045638A Pre-load adjustable spindle 有权
标题翻译：预加载可调主轴
公开(公告)号：JP2012045638A
公开(公告)日：2012-03-08
申请号：JP2010187510
申请日：2010-08-24
申请人： Nsk Ltd , 日本精工株式会社
发明人： OGURI SHOICHIRO
IPC分类号： B23B19/02
摘要： PROBLEM TO BE SOLVED: To provide a pre-load adjustable spindle in which, even if the posture of a spindle changes, a proper pre-load value is applied to a bearing at always without affected by a shaft weight, for improved precision in working.SOLUTION: In a pre-load adjustable spindle 10, a pre-load is applied on a front side bearing 13 by the spring force of a spring member 45 by way of a sleeve 15. The spring member 45 is interposed between an oil-pressure piston 43 that engages with an oil pressure chamber 41 and the sleeve 15. By contracting/expanding the spring member 45 by controlling the pressure of a working oil that is supplied to the oil pressure chamber 41, the spring force acting on the sleeve 15 is changed, to properly keep the pre-load value on the front side bearing 13 which is determined by change in posture of the pre-load adjustable spindle 10.
摘要翻译：要解决的问题：提供一种预负载可调节主轴，其中即使主轴的姿态改变，一个不受轴重量影响的轴承也施加适当的预载值，以改善工作精度。解决方案：在预加载可调节主轴10中，通过弹簧构件45的弹簧力通过套筒15将前负载施加在前侧轴承13上。弹簧构件45插入在油压活塞43，其与油压室41和套筒15接合。通过控制供给到油压室41的工作油的压力来收缩/膨胀弹簧构件45，作用在油压室41上的弹簧力套筒15被改变，以便正确地保持由预负载可调主轴10的姿势变化所确定的前侧轴承13上的预加载值。（C）2012，JPO＆INPIT

6. 发明专利

JP2014047855A Spindle device 审中-公开
标题翻译：主轴装置
公开(公告)号：JP2014047855A
公开(公告)日：2014-03-17
申请号：JP2012191662
申请日：2012-08-31
申请人： Nsk Ltd , 日本精工株式会社
发明人： OGURI SHOICHIRO , INAGAKI YOSHIFUMI , KATSUNO YOSHIAKI
IPC分类号： F16C33/80 , B23B19/02 , B23Q11/00 , B23Q11/08 , F16C19/16 , F16J15/447
摘要： PROBLEM TO BE SOLVED: To provide a spindle device and a flinger for the spindle device capable of preventing deformation of the flinger due to centrifugal force while keeping high speed rotating performance of a million or more dmn value of a used bearing and a good water-proofing function.SOLUTION: A metallic member 72 is composed of first and second metallic members 70 and 71, the first metallic member 70 is a spacer having a cylindrical portion 70a extended in the axial direction, and the second metallic member 71 is a spacer extended to a radial outer side with respect to the cylindrical portion 70a, and kept into contact with an axial rear face 70d of the cylindrical portion 70a, and an axial front face of an inner ring 52 of a front bearing 50. The flinger 40 has a cylindrical base portion 42 externally fitted to the cylindrical portion 70a of the first metallic member 70, and an extended portion 45 extended to the radial outer side from the base portion 42, and composed of a fiber-reinforced composite material. The base portion 42 of the flinger 40 is disposed in opposition to the second metallic member 71 through a clearance gap δ' in the axial direction.
摘要翻译：要解决的问题：为了提供一种用于主轴装置的主轴装置和挡泥板，其能够防止由于离心力而引起的抛油板的变形，同时保持使用的轴承的百万分之一或更多的dmn值的高速旋转性能和良好的水 - 解决方案：金属构件72由第一和第二金属构件70和71构成，第一金属构件70是具有沿轴向延伸的圆筒部70a的间隔件，第二金属构件71是间隔件延伸相对于圆筒部70a的径向外侧，与圆筒部70a的轴向后面70d以及前轴承50的内圈52的轴向前面保持接触。挡板40具有从第一金属构件70的圆筒部70a向外侧配合的圆筒状的基部42以及从基部42向径向外侧延伸的延伸部45，呃增强复合材料。挡泥板40的基部42通过轴向上的间隙δ'设置成与第二金属构件71相对。

7. 发明专利

JP2013142414A Spindle device 有权
标题翻译：主轴装置
公开(公告)号：JP2013142414A
公开(公告)日：2013-07-22
申请号：JP2012001572
申请日：2012-01-06
申请人： Nsk Ltd , 日本精工株式会社
发明人： OGURI SHOICHIRO
IPC分类号： F16J15/447 , B23B19/02 , F16C19/16 , F16C19/54 , F16C33/80
摘要： PROBLEM TO BE SOLVED: To provide a spindle device rotatable at a high speed where a dmn value is equal to or higher than 1 million and having a favorable waterproof function.SOLUTION: A flinger 40 includes a boss 41 fixed to a rotary shaft 11, a disk 42 extending outward in a diameter direction from the boss 41 and disposed facing an axial direction with a slight gap from the axial-direction front end surface 71 of a front side bearing outer ring press 12 constituting a housing H, and an annular part 43 extending in an axial direction from the disk 42 and disposed facing the diameter direction with a slight gap to the outer circumferential surface 75 of the front side bearing outer ring press 12. The annular part 43 is formed in such a tapered shape that it becomes thinner as it is separated from the disk 42 in the axial direction.
摘要翻译：要解决的问题：提供一种可高速旋转的主轴装置，其中dmn值等于或大于1百万，具有良好的防水功能。解决方案：挡泥板40包括固定在旋转轴11上的凸台41，从凸台41沿直径方向向外延伸并且与构成壳体H的前侧轴承外圈压力机12的轴向前端面71稍微间隙的轴向配置的盘42，以及环状部 43，其从盘42沿轴向延伸并且与前侧轴承外圈压力机12的外周面75稍微间隙地面对直径方向。环形部43形成为锥形，其在轴向方向上与盘42分离而变薄。

8. 发明专利

JP2012106324A Pre-load variable type spindle 有权
标题翻译：预加载型可变型主轴
公开(公告)号：JP2012106324A
公开(公告)日：2012-06-07
申请号：JP2010258938
申请日：2010-11-19
申请人： Nsk Ltd , 日本精工株式会社
发明人： OGURI SHOICHIRO
IPC分类号： B23B19/02
摘要： PROBLEM TO BE SOLVED: To provide a pre-load variable type spindle capable of improving processing accuracy as a proper pre-load amount is always applied to a bearing, without being affected by a shaft weight even if the attitude of the spindle is changed from a vertical attitude to a horizontal attitude.SOLUTION: In the pre-load variable type spindle 10 in which a pre-load is applied to a front side bearing 13 by spring force of a spring member 45 via a sleeve 15, the spring member 45 is interposed between a hydraulic piston 43 fitted in a hydraulic chamber 41 and the sleeve 15. When the spindle 10 is in the vertical attitude, the spring member 45 is contracted by the hydraulic piston 43, so that pre-loads applied to the front side bearing 13 and a rear side bearing 14 are set. Further, when the attitude is changed to the horizontal attitude, pressure of hydraulic oil to be supplied to the hydraulic chamber 41 is controlled to extend the spring member 45, so that spring force acting on the sleeve 15 is changed to reduce the pre-loads and a pre-load amount of the front side bearing 13 associated with the attitude change of the variable pre-load type spindle 10 is properly maintained.
摘要翻译：要解决的问题：即使主轴的姿态，也不会受到轴重的影响，提供能够将加工精度提高为适当的预负荷量的预负荷可变型主轴从垂直的态度转变为横向的态度。解决方案：在通过套管15通过弹簧构件45的弹簧力将预负荷施加到前侧轴承13的预负荷可变主轴10中，弹簧构件45插入液压活塞43装配在液压室41和套筒15中。当主轴10处于垂直姿势时，弹簧构件45被液压活塞43收缩，使得预加载到前侧轴承13和后侧侧轴承14。此外，当姿势改变为水平姿势时，控制供给到液压室41的液压油的压力以使弹簧构件45延伸，从而改变作用在套筒15上的弹簧力以减小预加载并且适当地保持与可变预负载型主轴10的姿态变化相关联的前侧轴承13的预加载量。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2014047857A Spindle device 审中-公开
标题翻译：主轴装置
公开(公告)号：JP2014047857A
公开(公告)日：2014-03-17
申请号：JP2012191664
申请日：2012-08-31
申请人： Nsk Ltd , 日本精工株式会社
发明人： OGURI SHOICHIRO , INAGAKI YOSHIFUMI , KATSUNO YOSHIAKI
IPC分类号： F16C33/80 , B23B19/02 , B23Q11/00 , B23Q11/08 , F16C19/16 , F16C19/54 , F16J15/447
摘要： PROBLEM TO BE SOLVED: To provide a spindle device and a slinger for the spindle device, capable of preventing deformation of the flinger due to centrifugal force while keeping high-speed rotational performance of a million or more dmn value of a used bearing, and good water-proofing function.SOLUTION: A flinger 40 has a cylindrical boss portion 42 externally fitted to a rotating shaft 11, a flat portion 43 extended from an axial front end of the boss portion 42 to a radial outer side, a taper portion 44 extended in a state of being inclined to an axial rear side toward the radial outer side from a radial outer end portion of the flat portion 43, and an annular portion 45 extended from a radial outer end portion of the taper portion 44 to the axial other end side, and is made of a material having a specific gravity smaller than that of the rotating shaft 11 and a specific strength larger than the rotating shaft 11.
摘要翻译：要解决的问题：为了提供用于主轴装置的主轴装置和抛油环，能够防止由于离心力而导致的抛油板变形，同时保持所使用的轴承的百万以上的dmn值的高速旋转性能，并且良好防水功能。解决方案：挡泥板40具有外筒装配到旋转轴11的圆柱形凸台部分42，从凸台部分42的轴向前端延伸到径向外侧的平坦部分43，锥形部分44延伸在从平坦部43的径向外端部朝向径向外侧的轴向后侧倾斜的状态以及从锥形部44的径向外端部向轴向另一端延伸的环状部45 并且由比重小于旋转轴11的比重的材料和比旋转轴11大的比强度的材料制成。

10. 发明专利

JP2013022675A Spindle device 审中-公开
标题翻译：主轴装置
公开(公告)号：JP2013022675A
公开(公告)日：2013-02-04
申请号：JP2011159094
申请日：2011-07-20
申请人： Nsk Ltd , 日本精工株式会社
发明人： OGURI SHOICHIRO
IPC分类号： B23B19/02 , F16C19/16 , F16C19/54 , F16C35/073
摘要： PROBLEM TO BE SOLVED: To provide a spindle device suppressing influence of thermal expansion and centrifugal force on a bearing to prevent malfunction such as seizing or the like caused by an increase in preload on the bearing in a high speed operating rotary shaft.SOLUTION: One pair of front side inner ring spacers 32 disposed face to face on both side surfaces of an inner ring 52 of a front side bearing 50 rotatably supporting the rotary shaft 12 have flange-shaped protrusions 32b axially protruded from outer peripheral sides and fitting on an outer peripheral surface 52a of a shoulder of the inner ring 52 and are made of a material smaller in thermal expansion coefficient and larger in specific modulus than the inner ring 52.
摘要翻译：要解决的问题：提供一种抑制热膨胀和离心力对轴承的影响的主轴装置，以防止由高速操作旋转轴中的轴承上的预载增加引起的诸如卡死等的故障。解决方案：可旋转地支撑旋转轴12的前侧轴承50的内环52的两侧表面上面对地设置一对前侧内圈间隔件32，其具有从外周侧轴向突出的凸缘状突起32b 并且配合在内圈52的肩部的外周面52a上，并且由比内圈52更小的热膨胀系数和更大的比模量的材料制成。版权所有（C）2013，JPO＆INPIT

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