公开(公告)号：US06729759B2

公开(公告)日：2004-05-04

申请号：US10156639

申请日：2002-05-29

申请人： Takeki Shirai ,  Hidekazu Michioka ,  Genjirou Ise ,  Hiroaki Kishi

发明人： Takeki Shirai ,  Hidekazu Michioka ,  Genjirou Ise ,  Hiroaki Kishi

IPC分类号： F16C2906

CPC分类号： F16C29/12 ,  B23Q1/26 ,  B23Q1/58 ,  F16C29/004 ,  F16C29/005 ,  F16C29/0633 ,  F16C2322/39

摘要： The present invention provides a track rail mounting structure of a rectilinear guide apparatus comprising a track rail having a rotating/running surface where a plenty of rotating/running bodies rotate and run; an endless circulation route for guiding the plenty of rotating/running bodies; and a slider movably arranged with respect to the track rail via the rotating/running bodies; wherein a base where the track rail is mounted has a groove for inserting a bottom portion of the track rail, so that the bottom portion of the track rail is inserted into the groove, and a pressure member is provided for pressing at least one side surface of the track rail toward an inner side surface of the groove. As has been described above, since the pressure member is provided to press the side surface of the track rail toward the inner side surface of the groove, the side surface of the track rail is pressed by the pressure member so as to press the opposite side of the track rail to the inner side surface of the groove or both side surfaces of the track rail are pressed by the pressure member so as to be fixed to the track rail. Accordingly, even when a thermal expansion difference is caused between the track rail and the base by a temperature change, a contact portion of the pressure member slides along the side surface of the track rail so as to absorb the thermal expansion difference and accordingly, no distortion is caused in the track rail.

摘要翻译： 本发明提供了一种直线引导装置的轨道轨道安装结构，其包括具有旋转/行进体的旋转/行进表面的轨道轨道，其中旋转/运行体旋转并运行; 引导大量旋转/运行体的循环循环路线; 以及通过旋转/运行体相对于轨道轨道可移动地布置的滑块; 其中安装有轨道轨道的基座具有用于插入轨道轨道的底部的槽，使得轨道轨道的底部插入到槽中，并且设置有压力构件，用于将至少一个侧面 的轨道轨道的侧表面。如上所述，由于压力构件被设置成将轨道轨道的侧表面朝向槽的内侧表面挤压，轨道轨道的侧表面 被压力构件按压以将轨道轨道的相对侧按压到槽的内侧表面，或者轨道轨道的两个侧面被压力构件按压以便被固定到轨道轨道上。 因此，即使当通过温度变化在轨道轨道和基座之间产生热膨胀差时，压力构件的接触部分沿着轨道轨道的侧表面滑动，从而吸收热膨胀差，因此，不 在轨道轨道中引起失真。

公开(公告)号：US06558038B2

公开(公告)日：2003-05-06

申请号：US09804222

申请日：2001-03-13

申请人： Akihiro Teramach ,  Takeki Shirai ,  Kaoru Hoshide

发明人： Akihiro Teramach ,  Takeki Shirai ,  Kaoru Hoshide

IPC分类号： F16L2906

CPC分类号： F16C29/063 ,  F16C29/008 ,  F16C29/0669 ,  F16H25/22 ,  F16H2025/2034 ,  F16H2025/204 ,  F16H2025/2242 ,  H02K7/08 ,  H02K41/033

摘要： A rolling guide device comprises: a track rail formed with a rolling member rolling surface extending along a longitudinal direction thereof; a movable rail formed with a loaded rolling member rolling surface extending along a longitudinal direction thereof so as to oppose to the rolling member rolling surface of the track rail; a track rail side rolling member circulation passage formed to the track rail so as to circulate the rolling members rolling between the track rail and the movable rail; a movable rail side rolling member circulation passage formed to the movable rail so as to circulate the rolling members rolling between the track rail and the movable rail; and a number of rolling members disposed and arranged in the track rail side rolling member circulation passage and the movable rail side rolling member circulation passage. A drive system comprises such rolling guide device and linear motors having a primary side mounted to either one of the track rail and the movable rail and a secondary side mounted to another one of the track rail and the movable rail.

公开(公告)号：US06513978B2

公开(公告)日：2003-02-04

申请号：US09949992

申请日：2001-09-12

申请人： Takeki Shirai ,  Hiroshi Niwa ,  Kentarou Nishimura ,  Yasuyuki Abe ,  Kiyomi Tamura

发明人： Takeki Shirai ,  Hiroshi Niwa ,  Kentarou Nishimura ,  Yasuyuki Abe ,  Kiyomi Tamura

IPC分类号： F16G2906

CPC分类号： F16C33/3706 ,  F16C33/6614 ,  F16H25/2238 ,  Y10T74/19777

摘要： The present invention provides rolling element spacers used in a rolling guide unit provided with an endless circulating passage for balls; arranged with plural balls alternately therewith in the endless circulating passage; and circulated with these balls in the endless circulating passage. Each of the rolling element spacers has a pair of retaining seats which the balls contact, and is formed so that, on a ball cutting plane perpendicular to the center of rotation of each ball, each retaining seat and a relative ball contact each other at only the two portions of the retaining seat that are in the vicinity of both ends thereof.

公开(公告)号：US6053062A

公开(公告)日：2000-04-25

申请号：US953235

申请日：1997-10-17

申请人： Hirokazu Ishikawa ,  Takeki Shirai ,  Tadashi Hirokawa

发明人： Hirokazu Ishikawa ,  Takeki Shirai ,  Tadashi Hirokawa

IPC分类号： F16C29/06 ,  F16H25/20 ,  F16H23/22

CPC分类号： F16C29/064 ,  F16H25/20 ,  F16H2025/2075 ,  Y10T74/18648 ,  Y10T74/19902

摘要： A linear motion apparatus comprises a linear track rail having a roller running groove; a feeding threaded shaft rotatably arranged in parallel with the track rail; and a movable block arranged on the track rail through rollers, and provided with a nut portion having a threaded bore into which the feeding threaded shaft is to be screwed. The movable block comprises (i) a block body having a roller running counter-groove which faces on the roller running groove of the track rail and a roller returning passage and (ii) direction changing passage forming members respectively provided on both ends of the block body, each of which members forms a U-shaped direction changing passage connecting the roller running counter-groove and the roller returning passage to each other. The movable block is linearly moved on the track rail through the rollers by rotating the feeding threaded shaft. The nut portion is integrally formed on the direction changing passage forming member, and a position of a center axis of the threaded bore of the nut portion is determined by the direction changing passage forming member on a basis of a position of the roller running counter-groove.

摘要翻译： 直线运动装置包括具有滚轮运行槽的直线轨道轨道; 与轨道轨道平行地可旋转地布置的进给螺纹轴; 以及通过辊布置在轨道轨上的可移动块，并且设置有具有螺纹孔的螺母部分，进给螺纹轴将被拧入该螺母部分。 可移动块包括（i）块体，其具有面向轨道轨道的滚轮延伸槽的辊运行相对槽和辊返回通道，以及分别设置在块的两端的方向改变通道形成构件 每个构件形成将滚子运行的相对槽和滚子返回通道相互连接的U形方向转换通道。 通过旋转进给螺纹轴，可移动块通过滚子在轨道轨道上线性移动。 螺母部分一体地形成在方向转换通道形成构件上，并且螺母部分的螺纹孔的中心轴线的位置由方向转换通道形成构件基于辊运行反向通道形成构件的位置确定， 槽。

公开(公告)号：US6049988A

公开(公告)日：2000-04-18

申请号：US105194

申请日：1998-06-26

申请人： Takeki Shirai

发明人： Takeki Shirai

IPC分类号： F16C23/06 ,  F16C29/06 ,  F16C33/38 ,  F16C33/46 ,  F16C33/50 ,  G01B5/00

CPC分类号： F16C29/0635 ,  F16C23/06 ,  F16C29/0607 ,  F16C33/3825 ,  F16C33/506

摘要： A guide rail has two roller running surfaces and two ball running grooves. A movable block has a horizontal member facing the upper surface of the guide rail and wing members respectively facing the side surfaces of the guide rail. The horizontal member has on its under surface two roller running counter-surfaces corresponding to the two roller running surfaces of the guide rail. Each of the wing members has on its inner surface two ball running counter-grooves corresponding to the two ball running grooves of the guide rail. Two trains of rollers are arranged between the two roller running surfaces and the two roller running counter-surfaces, respectively, so as to be rollable. Two trains of balls are arranged between the two ball running grooves and the two ball running counter-grooves, in each of gaps between the side surfaces of the guide rail and the inner surfaces of the wing members, so as to be rollable.

摘要翻译： 导轨具有两个滚轮运行表面和两个滚珠槽。 可移动块具有面向导轨的上表面的水平构件和分别面对导轨的侧表面的翼构件。 水平构件在其下表面上具有对应于导轨的两个滚子运行表面的两个滚子运行的相对表面。 每个翼构件在其内表面上具有对应于导轨的两个滚珠运行槽的两个球运动相对槽。 分别在两个辊子运行表面和两个辊子运行的相对表面之间布置两列辊子，以便可滚动。 在导轨的侧面和翼构件的内表面之间的每个间隙中，在两个滚珠运行槽和两个滚珠运行相对槽之间布置两列滚珠，以便可滚动。

公开(公告)号：US5974908A

公开(公告)日：1999-11-02

申请号：US33911

申请日：1998-03-03

申请人： Takeki Shirai ,  Takahiro Kawaguchi

发明人： Takeki Shirai ,  Takahiro Kawaguchi

IPC分类号： F16H25/22

CPC分类号： F16H25/2219 ,  Y10T74/19772

摘要： A ball screw comprises a screw shaft, a hollow cylindrical nut member, balls, a ball returning means and a pair of deflectors. The screw shaft has a helical ball running groove. The nut member has a helical ball running counter-groove facing on the helical ball running groove of the screw shaft, and has a pair of ball-passing holes for connecting inner and outer surfaces of the nut member with each other. The balls are arranged between the ball running groove and the ball running counter-groove. The ball returning means is arranged on the outer surface of the nut member, for connecting the ball-passing holes with each other. The deflectors are disposed so as to be respectively correspondent with the ball-passing holes, for picking up the balls from the ball running groove to transfer the thus picked up balls into the ball-passing hole. Each of the deflectors comprises a ring-shaped base member fitted in an opening end of the nut member, and a ball-picking-up member projected from the base member. The ball-picking-up member is inserted in the ball running counter-groove so as to take a prescribed position of the ball-picking-up member relative to the ball-passing hole.

摘要翻译： 滚珠丝杠包括螺杆轴，中空圆柱形螺母构件，球，球返回装置和一对偏转器。 螺杆轴具有螺旋球运行槽。 螺母构件具有面向螺杆轴的螺旋球运行槽的相对槽的螺旋球，并且具有用于将螺母构件的内表面和外表面彼此连接的一对球通孔。 滚珠布置在球运行槽和球运行相对槽之间。 球返回装置设置在螺母构件的外表面上，用于将球形通孔彼此连接。 偏转器被设置成分别对应于球形通孔，用于从球运动槽拾取球以将如此拾取的球转移到球通孔中。 每个偏转器包括装配在螺母构件的开口端中的环形基部构件和从基部构件突出的球拾取构件。 将球拾取部件插入到球运行的相对槽中，以便相对于球形通过孔采取球拾取部件的规定位置。

公开(公告)号：US5957586A

公开(公告)日：1999-09-28

申请号：US868067

申请日：1997-06-03

申请人： Isao Okamoto ,  Takeki Shirai

发明人： Isao Okamoto ,  Takeki Shirai

IPC分类号： F16C29/06 ,  F16C31/06

CPC分类号： F16C29/0635 ,  F16C29/008 ,  F16C29/063 ,  F16C29/0638 ,  F16C29/0676 ,  F16C33/36

摘要： A rolling guide unit comprises a movable member provided with a pair of support portions extending from lateral end portions of a main body portion so as to provide a recessed portion between the main body portion and both the support portions, a guide rail disposed in the recessed portion of the movable member so that side surfaces of the guide rail face the inner surfaces of the support portions, respectively, and a number of rolling members disposed to be rollable between corresponding rolling member rolling grooves formed to the guide rail and the support portions of the movable member so that each of the rolling members contact the rolling member rolling grooves at two contact points and the rolling members apply load to the rolling member rolling grooves, the movable member and the guide rail being relatively movable through the rolling of the rolling members. Each of the rolling member rolling grooves has an arcuate shape in section having radius of curvature larger than that of the rolling member and the contact points are displaceable along the arcuate shape of the rolling member rolling groove.

摘要翻译： 滚动导向单元包括可动构件，该可动构件设置有从主体部分的横向端部延伸的一对支撑部分，以在主体部分和两个支撑部分之间提供凹陷部分， 所述导轨的侧面分别面对所述支撑部的内表面，并且多个滚动部件设置成能够在形成于所述导轨的相应的滚动部件滚动槽和所述支撑部分的支撑部分之间滚动 所述可动构件使得每个所述滚动构件在两个接触点处接触所述滚动构件滚动槽，并且所述滚动构件对所述滚动构件滚动槽施加载荷，所述可动构件和所述导轨可通过所述滚动构件的滚动而相对移动 。 每个滚动部件滚动槽具有曲率半径大于滚动部件的曲率半径的弧形形状，并且接触点可沿着滚动部件滚动槽的弓形移动。

公开(公告)号：US5755516A

公开(公告)日：1998-05-26

申请号：US788352

申请日：1997-01-27

申请人： Hiroshi Teramachi ,  Takeki Shirai

发明人： Hiroshi Teramachi ,  Takeki Shirai

IPC分类号： F16C29/06 ,  F16C33/38 ,  F16C43/04

CPC分类号： F16C33/3825 ,  F16C29/0602 ,  F16C29/0654 ,  Y10T29/49641

摘要： At least a ball escape hole (10) of a ball circulation passage (7) is formed of a molded body (12) and the molded body (12) is formed integrally with a block body (13) having high rigidity through an insert molding process, thereby eliminating a drilling working, possibly reducing assembling processes and reducing generation of noise. It is preferred that the molded body (12) is provided with an inner peripheral portion of a direction changing passage (11) integrally connected with the ball escape hole (10) and joined with both end surfaces of the block body (13). Furthermore, it is preferred that the molded body (12) is provided with a retainer (17) extending along a loaded ball passage (8) and integrally connected, at its both ends, with the inner peripheral portion of the direction changing passage (11), thereby providing a closed sectional shape surrounded by the ball escape hole portion (10), the direction changing portion (11) and the retainer portion (17).

摘要翻译： 至少球形循环通道（7）的球排泄孔（10）由成型体（12）形成，并且成型体（12）通过嵌件成型与具有高刚性的块体（13）整体形成 从而消除了钻孔加工，可能减少组装过程并减少噪音的产生。 成形体（12）优选设置有与球排泄孔（10）一体连接并与块体（13）的两端面连接的方向转换通路（11）的内周部。 此外，优选的是，成型体（12）设置有沿着负载的球通道（8）延伸并且在其两端与方向转换通道（11）的内周部分一体地连接的保持器 ），从而提供由球排泄孔部（10），方向改变部（11）和保持器部（17）包围的封闭截面形状。

公开(公告)号：US5273381A

公开(公告)日：1993-12-28

申请号：US779739

申请日：1991-10-23

申请人： Takeki Shirai

发明人： Takeki Shirai

IPC分类号： B23Q1/00 ,  B23Q1/40 ,  B23Q5/40 ,  B23Q5/44 ,  B23Q37/00 ,  F16H25/20

CPC分类号： B23Q37/00 ,  B23Q5/404 ,  Y10T409/30868 ,  Y10T82/2549

摘要： In the ball screw guide unit of the invention, since a guide rail is formed of a channel bar having a groove, and a ball screw shaft is engaged with a movable member which is reciprocatively movable in the groove along a lengthwise direction of the guide rail, so that the centroid of the guide rail is adjacent to the axis of the ball screw shaft. Therefore, when a pretension is applied to the ball screw shaft, a straightness of the guide rail is not impaired and a feed accuracy of the movable member can be maintained. Further, the guide rial may be provided at its lower and side surfaces with reference surfaces used for adjusting parallelism between the guide rail and the axis of the ball screw shaft, in which case assembly and adjustment of the table can be performed more easily.

摘要翻译： 在本发明的滚珠丝杠导向单元中，由于导轨由具有槽的通道条形成，并且滚珠丝杠轴与可动构件接合，可动构件沿着导轨的长度方向在槽中往复运动 使得导轨的重心与滚珠丝杠轴的轴线相邻。 因此，当对滚珠丝杠轴施加预张力时，导轨的平直度不受损害，并且可以保持可动构件的进给精度。 此外，引导件可以在其下表面和侧表面处设置有用于调节导轨和滚珠丝杠轴的轴线之间的平行度的参考表面，在这种情况下，可以更容易地进行安装和调整工作台。

公开(公告)号：US5263381A

公开(公告)日：1993-11-23

申请号：US850709

申请日：1992-03-13

申请人： Takeki Shirai

发明人： Takeki Shirai

IPC分类号： F16H25/22 ,  F16H25/24

CPC分类号： F16H25/2209 ,  Y10T74/18728 ,  Y10T74/19902

摘要： A ball screw comprising a threaded rod and a ball nut making a rectilinear motion around the rod as the rod is rotated. A first load ball groove and a second load groove which have an offset relation to each other are formed in the inner surface of the ball nut. A pre-load is imparted to ball bearings rolling in these two load grooves. The ball nut has a resilient portion between the first and second load ball grooves. The resilient portion can be displaced axially. Any excessive pre-load created by the error introduced either in the lead of the ball-rolling groove or in the lead of the first or second load ball groove is absorbed by the resilient portion. Consequently, the novel ball screw is superior in accuracy to the prior art ball screw, and is easier to fabricate.

摘要翻译： 一种滚珠丝杠，其包括螺杆和滚珠螺母，当所述杆旋转时，所述滚珠螺母在所述杆周围形成直线运动。 在滚珠螺母的内表面上形成有彼此具有偏移关系的第一负载球槽和第二负载槽。 在这两个负载槽中对滚珠轴承进行预加载。 滚珠螺母在第一和第二负载球槽之间具有弹性部分。 弹性部分可以轴向位移。 通过在滚珠槽的引线或第一或第二负载球槽的引线中引入的误差产生的任何过度的预加载被弹性部分吸收。 因此，新颖的滚珠丝杠的精度优于现有技术的滚珠丝杠，并且制造更容易。