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1. 发明专利

JP2014046411A Spindle device, and flinger for spindle device 审中-公开
标题翻译：主轴装置和用于主轴装置的起动器
公开(公告)号：JP2014046411A
公开(公告)日：2014-03-17
申请号：JP2012191658
申请日：2012-08-31
申请人： Nsk Ltd , 日本精工株式会社 , Toho Tenax Co Ltd , 東邦テナックス株式会社
发明人： YONEYAMA HIROKI , KATSUNO YOSHIAKI , KITASU MASAYA
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 spindle device 40 includes: a cylindrical boss part 42 externally fitted to a rotational shaft 11; a disk part 43 extending from a front end part of the boss part 42 in a shaft direction to an outside in a radial direction, and oppositely disposed to a front surface of a housing H in the shaft direction (a front surface 12a in the shaft direction of an outer ring pressing 12 of a front side shaft bearing) via a gap; a circular part 44 extending from an outer end part of the disk part 43 in a radial direction to the other end side in the shaft direction, and oppositely arranged to an outer peripheral surface of the housing H (an outer peripheral surface 12b of the outer ring pressing of the front side bearing, and an outer peripheral surface 13a of an external cylinder 13) via a gap; a flinger body 41 made from a metallic material; and a ring member 70 made from a carbon fiber composite material and externally fitted to the circular part 44.
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，并且提供一种用于主轴装置。主轴装置40包括：外部装配到旋转轴11的圆柱形凸台部42; 从凸台部42的前端部沿轴向向径向外侧延伸并且相对地设置在壳体H的轴向的前表面（轴的前表面12a）中的盘部43 经由间隙的前侧轴承的外圈压紧件12的方向）从圆盘部43的外端部沿径向向轴向另一端侧延伸的圆形部44，与壳体H的外周面12b相反地配置通过间隙，前侧轴承的环压，外筒13的外周面13a）由金属材料制成的挡板体41; 以及由碳纤维复合材料制成并外部安装在圆形部分44上的环件70。

2. 发明专利

JP2013022674A Main spindle device 有权
标题翻译：主要主轴装置
公开(公告)号：JP2013022674A
公开(公告)日：2013-02-04
申请号：JP2011159093
申请日：2011-07-20
申请人： Nsk Ltd , 日本精工株式会社
发明人： YONEYAMA HIROKI , IWASAKI OSAMU
IPC分类号： B23B19/02 , F16C37/00
摘要： PROBLEM TO BE SOLVED: To provide a main spindle device that improves working accuracy by making heat of the main spindle device hard to be transmitted to a machine tool body side in order to reduce thermal deformation of the machine tool body.SOLUTION: The main spindle device includes a rotary shaft 13, and front/rear bearings 50, 60 respectively and rotatably supporting the rotary shaft 13 with respect to a housing H. The housing H includes at least a metal inner sleeve 11 externally fitted to the rear bearing 60 and an outer sleeve 12 made of carbon fiber composite material externally fitted to the inner sleeve 11.
摘要翻译：要解决的问题：为了提供一种通过使主轴装置的热量难以传递到机床主体侧而提高加工精度的主轴装置，以减少机床主体的热变形。主轴装置包括旋转轴13和前/后轴承50,60，它们分别相对于壳体H可旋转地支撑旋转轴13.壳体H至少包括一个外部的金属内套筒11 安装在后轴承60上的外套筒12和外套在内套筒11上的碳纤维复合材料制成的外套筒12.（C）2013，JPO＆INPIT

3. 发明专利

JP2010052099A Main spindle device and machine tool equipped with the same 审中-公开
标题翻译：主要装置和装备的机床
公开(公告)号：JP2010052099A
公开(公告)日：2010-03-11
申请号：JP2008220286
申请日：2008-08-28
申请人： Nsk Ltd , 日本精工株式会社
发明人： YONEYAMA HIROKI , INAGAKI YOSHIFUMI , KATSUNO YOSHIAKI
IPC分类号： B23B19/02 , B23Q1/70
摘要： PROBLEM TO BE SOLVED: To reduce the whole axial dimension by shortening the span between front and rear bearings of a rotary shaft, and thus shortening the total length of the rotary shaft.
SOLUTION: In the main spindle device M, the rotary shaft 80 is freely rotatably supported by a housing H through the front and rear side bearings 25, 26, 36, and rotatably driven by a built-in motor 50. At least either a front side bearing housing 20 or a rear side bearing housing 30 has a thick-wall cylindrical part 21 in the diameter direction and a thin-wall cylindrical projection 22 axially projected from a stator side end part close to the inner diameter of the cylindrical part 21. The cylindrical projection 22 enters the inner circumference side of an end coil 53 of the stator 51, and outer rings 26a, 36a of the front or rear side bearings 26, 36 are fitted into the inner circumference surface of the cylindrical projection 22.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过缩短旋转轴的前后轴承之间的跨度来缩小整个轴向尺寸，从而缩短旋转轴的总长度。解决方案：在主轴装置M中，旋转轴80通过前后轴承25,26,36由壳体H可自由旋转地支撑，并由内置的马达50可旋转地驱动。至少前侧轴承壳体20或后侧轴承壳体30具有直径方向的厚壁圆筒部21和从定子侧端部轴向突出的薄壁圆筒状突起22，该立体侧端部靠近圆筒状的内径圆柱形突起22进入定子51的端部线圈53的内周侧，并且前侧轴承26和后侧轴承36的外圈26a，36a嵌合在圆柱形突起22的内圆周表面中。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2008161950A Main spindle device and machining center furnished with it 有权
标题翻译：主轴装置和加工中心
公开(公告)号：JP2008161950A
公开(公告)日：2008-07-17
申请号：JP2006351175
申请日：2006-12-27
申请人： Nsk Ltd , 日本精工株式会社
发明人： INAGAKI YOSHIFUMI , YONEYAMA HIROKI , IWASAKI OSAMU
IPC分类号： B23Q1/70
摘要： PROBLEM TO BE SOLVED: To provide a main spindle device capable of exchanging a main spindle in an extremely short period of time, short in downtime in maintenance and high in productivity and a machining center furnished with it. SOLUTION: This main spindle device 20 is furnished with; the bracket 21 mounted on a supporting arm 9 free to revolve and having a cylinder part 22 roughly vertical against its revolving axis; a rotating part 31 on a head end of which a tool can be installed; a housing 32 mounted on the cylinder part 22 of the bracket 23 free to insert into and remove from it and having a mounting surface 35a facing against a surface of the bracket 21 and; the main spindle 30 arranged between the rotating part 31 and the housing 32 and having bearings 50, 51 to support the rotating part 31 free to rotate against the housing 32. Channel openings 80 to 86 of fluid supplied to the main spindle 30 are formed on the mounting surface 35a of the housing 32. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够在极短的时间内更换主轴的主轴装置，维护停机时间短，生产率高，并且配备有主轴装置的加工中心。
解决方案：该主轴装置20配备有：支架21安装在支撑臂9上，自由旋转并具有一个与其旋转轴线大致垂直的圆筒部分22; 可以安装工具的头端上的旋转部31; 安装在托架23的圆筒部分22上的壳体32，其自由地插入并移除，并且具有面向托架21的表面的安装表面35a; 主轴30布置在旋转部分31和壳体32之间，并且具有轴承50,51以支撑旋转部分31自由地旋转抵靠壳体32.供应到主轴30的流体的通道开口80至86形成在外壳32的安装表面35a。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2003334705A Main spindle device 审中-公开
标题翻译：主要主轴装置
公开(公告)号：JP2003334705A
公开(公告)日：2003-11-25
申请号：JP2002140338
申请日：2002-05-15
申请人： Nsk Ltd , 日本精工株式会社
发明人： SUGITA SUMIO , IWASAKI OSAMU , YONEYAMA HIROKI
IPC分类号： B23Q11/00 , B23B19/02 , B23B31/117
摘要： PROBLEM TO BE SOLVED: To provide a main spindle device capable of stabilizing balance at the time of ultra-high speed rotation for minimizing the vibration and noise of a main spindle, and improving processing accuracy with an extremely small unbalance volume of the main spindle and with generating little variation of the unbalance volume even if clamp and unclamp operations of a tool are repeated. SOLUTION: A pair of a right spiral plate spring 28 and a left spiral plate spring 29 are arranged and fitted on the outer periphery of a draw bar 26. An intermediate spacer 30 rotatably arranged to the draw bar 26 by a radial bearing 31 is arranged between the pair of the spiral plate springs 28, 29. When the pair of the spiral plate springs 28, 29 are compressed by clamp and unclamp operations, torsion in a direction for releasing spiral caused to the pair of the spiral plate springs 28, 29 is absorbed by rotating the intermediate spacer 30 so as to prevent the displacement of the spiral plate springs 28, 29 and the intermediated spacer 30. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种能够在超高速旋转时稳定平衡的主轴装置，以使主轴的振动和噪声最小化，并且以极小的不平衡体积提高加工精度主轴并且即使重复夹具和松开操作，也产生不平衡体积的很小变化。解决方案：一对右螺旋板弹簧28和左螺旋板弹簧29布置并配合在牵引杆26的外周上。中间间隔件30通过径向轴承可转动地布置在牵引杆26上 31设置在一对螺旋板簧28,29之间。当一对螺旋板簧28,29通过夹紧和松开操作被压缩时，在一对螺旋板簧通过旋转中间隔板30来吸收28,29，以防止螺旋板弹簧28,29和中间隔板30的位移。（C）2004，JPO

6. 发明专利

JP2014094442A Main spindle device of motor built-in system and machine tool including the same 审中-公开
标题翻译：电机内置系统的主轴装置和包括其的机床
公开(公告)号：JP2014094442A
公开(公告)日：2014-05-22
申请号：JP2012248642
申请日：2012-11-12
申请人： Nsk Ltd , 日本精工株式会社
发明人： YONEYAMA HIROKI , KATSUNO YOSHIAKI
IPC分类号： B23B19/02 , F16C3/02
摘要： PROBLEM TO BE SOLVED: To provide a main spindle device of a motor built-in system capable of correcting unbalance of a rotor.SOLUTION: In a main spindle device 10 of this embodiment, a revolving shaft 12 is made of a material having a higher specific modulus and a lower specific gravity than a metal material, and a rotor 20 is externally fitted onto the outer peripheral surface of the revolving shaft 12 and further first and second balance rings 91, 93 comprising a metal material are arranged on both sides in the axial direction of the rotor 20, to thereby enable surely execution of double-face correction of balance, even if unbalance of the rotor 20 is large.
摘要翻译：要解决的问题：提供一种能够校正转子不平衡的电动机内置系统的主轴装置。解决方案：在本实施例的主轴装置10中，旋转轴12由具有较高的比模量和比金属材料低的比重，并且将转子20外装在旋转轴12的外周面上，并且还包括金属材料的第一和第二平衡环91,93在两侧设置转子20的轴向，即使转子20的不平衡大，也能够确实地执行平衡的双面校正。

7. 发明专利

JP2014066345A Spindle device and flinger for spindle device 审中-公开
标题翻译：主轴装置和用于主轴装置的起动器
公开(公告)号：JP2014066345A
公开(公告)日：2014-04-17
申请号：JP2012213936
申请日：2012-09-27
申请人： Nsk Ltd , 日本精工株式会社
发明人： YONEYAMA HIROKI , KATSUNO YOSHIAKI
IPC分类号： F16J15/447 , B23B19/02 , B23Q11/00 , B23Q11/08 , F16C19/16 , F16C33/76 , F16C33/80
摘要： PROBLEM TO BE SOLVED: To provide a spindle device and a flinger for the spindle device that allow high-speed rotation using bearings with a dmn value of one million or more and can prevent the flinger from being deformed by centrifugal force while keeping a good waterproofing function.SOLUTION: A spindle device 40 comprises: a cylindrical boss part 42 fitted onto a rotating shaft 11; a disk part 43 extending with an inclination from an axial front end part of the boss part 42 toward a radial outside and opposed to an axial front face of a housing H via a gap; an annular part 44 extending from a radial outside end part of the disk part 43 toward the other axial end side and opposed to an outer peripheral surface of the housing H via a gap; a flinger body 41 made of a metal material; and a ring member 70 fitted onto an outer peripheral surface of the annular part 44 and made of a carbon fiber composite material.
摘要翻译：要解决的问题：为主轴装置提供一个主轴装置和一个旋转装置，可以使用达到100万或更高的dmn值的轴承进行高速旋转，并且可以通过离心力防止卷扬机变形，同时保持良好的防水性主轴装置40包括：安装在旋转轴11上的圆柱形凸台部分42; 盘部43，其从凸台部42的轴向前端部朝向径向外侧倾斜地延伸，并经由间隙与壳体H的轴向前面相对; 从盘部43的径向外端部朝向另一方的轴向端侧延伸并与壳体H的外周面经由间隙对置的环状部44; 由金属材料制成的挡板体41; 以及安装在环状部44的外周面并由碳纤维复合材料制成的环状构件70。

8. 发明专利

JP2014050958A Main spindle device, and machine tool provided with the same 审中-公开
标题翻译：主要主轴装置和与此相同的机床
公开(公告)号：JP2014050958A
公开(公告)日：2014-03-20
申请号：JP2013237020
申请日：2013-11-15
申请人： Nsk Ltd , 日本精工株式会社
发明人： YONEYAMA HIROKI , INAGAKI YOSHIFUMI , KATSUNO YOSHIAKI
IPC分类号： B23B19/02
摘要： PROBLEM TO BE SOLVED: To shorten a span between the front and rear bearings of a rotating shaft, and thereby shorten a full length of the rotating shaft and reduce the overall axial dimension.SOLUTION: A main spindle device M is configured such that a rotating shaft 80 is rotatably supported to a housing H through front side and rear side bearings 25, 26, and 36, and also the rotating shaft 80 is rotated and driven by a built-in motor 50. At least either one of a front side bearing housing 20 and a rear side bearing housing 30 has a thick-walled cylindrical part 21 thick in a radial direction and a thin-walled cylindrical protrusion 22 protruding from a stator side end close to an inner diameter of the cylindrical part 21, along an axial direction. A cylindrical protrusion 22 gets into the inner circumferential side of an end coil 53 of a stator 51, and outer rings 26a, 36a of the front side or rear side bearings 26 or 36 are internally fitted in the inner circumferential surface of the cylindrical protrusion 22.
摘要翻译：要解决的问题：缩短旋转轴的前轴承和后轴承之间的跨度，从而缩短旋转轴的全长并减小总的轴向尺寸。解决方案：主轴装置M构造成使得旋转轴80通过前侧和后侧轴承25,26和36可旋转地支撑在壳体H上，旋转轴80由内置的马达50旋转驱动。前侧轴承壳体20和后侧轴承壳体30具有沿径向厚的厚壁圆筒部21和沿着轴向方向从定子侧端部靠近圆筒部21的内径突出的薄壁圆柱形突出部22 方向。圆筒形突起22进入定子51的端部线圈53的内周侧，前侧或后侧轴承26或36的外圈26a，36a内嵌在圆筒形突起22的内周面上。

9. 发明专利

JP2014046409A 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：JP2014046409A
公开(公告)日：2014-03-17
申请号：JP2012191656
申请日：2012-08-31
申请人： Nsk Ltd , 日本精工株式会社
发明人： YONEYAMA HIROKI , KATSUNO YOSHIAKI
IPC分类号： B23Q11/00 , B23B19/02 , B23Q11/08 , F16C19/16 , 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 to provide a flinger for the spindle device.SOLUTION: A flinger 40 has a flinger body 41 made from a carbon fiber composite material, and includes: a first and second annular metal members 70 and 71 that are externally fitted to a rotating shaft 11 respectively; a cylindrical boss part 42 externally fitted to cylindrical parts 70a and 71a formed on the first and second metal members 70 and 71; and an extension part 45 extending outward from the boss part 42 in a radial direction. The first and second metal members 70 and 71 mutually cooperate to sandwich the boss part 42 of the flinger body 41 from both sides in a shaft direction.
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，并且提供一种用于主轴装置。滑块40具有由碳纤维复合材料制成的挡板体41，并且包括：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11上; 外圆嵌入到形成在第一金属构件70和第二金属构件71上的圆筒部70a和71a的圆筒形凸台部42; 以及从凸台部42沿径向向外延伸的延伸部45。第一金属构件70和第二金属构件71相互配合以从轴向两侧夹持挡板体41的凸台部42。

10. 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

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