CN110494663B - 运动引导装置 - Google Patents
运动引导装置 Download PDFInfo
- Publication number
- CN110494663B CN110494663B CN201880023828.5A CN201880023828A CN110494663B CN 110494663 B CN110494663 B CN 110494663B CN 201880023828 A CN201880023828 A CN 201880023828A CN 110494663 B CN110494663 B CN 110494663B
- Authority
- CN
- China
- Prior art keywords
- passage
- rolling
- carriage
- load
- holding belt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005096 rolling process Methods 0.000 claims description 108
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0669—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the main body of the U-shaped carriage is an assembly of at least three major parts, e.g. an assembly of a top plate with two separate legs attached thereto in the form of bearing shoes
- F16C29/0671—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the main body of the U-shaped carriage is an assembly of at least three major parts, e.g. an assembly of a top plate with two separate legs attached thereto in the form of bearing shoes with balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
- F16C29/0609—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the ends of the bearing body or carriage where the rolling elements change direction, e.g. end caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0614—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only
- F16C29/0621—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load in essentially two directions, e.g. by multiple points of contact or two rows of rolling elements
- F16C29/0623—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load in essentially two directions, e.g. by multiple points of contact or two rows of rolling elements with balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/045—Ball or roller bearings having rolling elements journaled in one of the moving parts
- F16C29/046—Ball or roller bearings having rolling elements journaled in one of the moving parts with balls journaled in pockets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
- F16C29/0638—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
- F16C29/064—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with two rows of balls, one on each side of the rail
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0669—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the main body of the U-shaped carriage is an assembly of at least three major parts, e.g. an assembly of a top plate with two separate legs attached thereto in the form of bearing shoes
- F16C29/0673—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the main body of the U-shaped carriage is an assembly of at least three major parts, e.g. an assembly of a top plate with two separate legs attached thereto in the form of bearing shoes with rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/3837—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
- F16C29/0638—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
- F16C29/0642—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls
- F16C29/0647—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls with load directions in X-arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/37—Loose spacing bodies
- F16C33/3706—Loose spacing bodies with concave surfaces conforming to the shape of the rolling elements, e.g. the spacing bodies are in sliding contact with the rolling elements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
本发明提供一种不减小额定载荷及容许载荷而能够使滑架紧凑的运动引导装置。运动引导装置包括轨道构件(1)和沿轨道构件(1)移动的滑架(2)。滑架(2)的循环通道(7)由负载通道(C1)、与负载通道(C1)平行的返回通道(C2)及与负载通道(C1)及返回通道(C2)相连的大致U字状的转向通道(C3)构成。从负载通道(C1)与返回通道(C2)重合的方向观察的侧面观察时,转向通道(C3)的至少一部分弯曲。
Description
技术领域
本发明涉及对工作台等运动进行引导的运动引导装置。
背景技术
这种运动引导装置包括安装于底座等的轨道构件和滑架,该滑架借助滚珠、辊等滚动体以能够相对于轨道构件相对移动的方式组装在轨道构件上,并安装在工作台等上。轨道构件形成供滚动体滚行的滚动体滚行部。滑架形成与滚动体滚行部相对的负载滚动体滚行部。在滑架相对于轨道构件相对移动时,滚动体在滚动体滚行部与负载滚动体滚行部之间的负载通道上滚动运动。
滑架设有用于使滚动体循环的循环通道。循环通道呈跑道状,由负载通道、与负载通道平行的返回通道、与负载滚动体滚行部及返回通道相连的大致U字状的转向通道构成。在滑架相对于轨道构件相对移动时,滚动体在循环通道中循环。
在以往的运动引导装置中,循环通道配置在一个平面内。并且,在滑架的正面观察(从滑架的相对移动方向观察)时,循环通道配置在滚动体的接触角的方向(参照专利文献1)。这是为了确保滚动体与滚动体滚行部的接触宽度及滚动体与负载滚动体滚行部的接触宽度。
在先技术文献
专利文献
专利文献1:日本特开2003-343556号公报
发明内容
发明要解决的课题
但是,在以往的运动引导装置中,存在循环通道的布局存在上述制约且滑架大型化的课题。若为了使滑架紧凑而使循环通道在滑架的正面观察时从滚动体的接触角的方向偏移,则牺牲滚动体的接触宽度,存在运动引导装置的额定载荷及容许载荷减小的课题。
由此,本发明目的在于提供一种能够防止额定载荷及容许载荷减小且能够使滑架紧凑的运动引导装置。
用于解决课题的方案
为了解决上述课题,本发明的一方案是一种运动引导装置,其包括:轨道构件,其具有滚动体滚行部;滑架,其具有与所述滚动体滚行部相对的负载滚动体滚行部、与所述负载滚动体滚行部平行的返回通道以及与所述负载滚动体滚行部及所述返回通道相连的大致U字状的转向通道;以及多个滚动体,它们以能够循环的方式排列在所述滚动体滚行部与所述负载滚动体滚行部之间的负载通道、所述返回通道及所述转向通道中,在所述运动引导装置中,在从所述负载通道与所述返回通道重合的方向观察的侧面观察时,所述转向通道的至少一部分弯曲。
发明效果
根据本发明,能够不牺牲滚动体的接触宽度而提高循环通道的配置设计的自由度。因此,能够防止额定载荷及容许载荷减小且能够使滑架紧凑。
附图说明
图1是本发明第一实施方式的运动引导装置的立体图(包含部分剖面)。
图2是将端板拆下后的状态的本实施方式的运动引导装置的主视图。
图3是与滑架的相对移动方向正交的本实施方式的运动引导装置的剖视图。
图4是循环通道的立体图。
图5是循环通道的3面图(图5的(a)是俯视图,图5的(b)是主视图,图5的(c)是侧视图)。
图6是示出保持带的图(图6的(a)是俯视图,图6的(b)是侧视图)。
图7是以ハ状张开的保持带的立体图。
图8是以ハ状张开的保持带的3面图(图8的(a)是俯视图,图8的(b)是主视图,图8的(c)是侧视图)。
图9是将端板拆下后的状态的本发明第二实施方式的运动引导装置的主视图。
图10是循环通道的3面图(图10的(a)是俯视图,图10的(b)是主视图,图10的(c)是侧视图)。
图11是以ハ状张开的保持带的3面图(图11(a)是俯视图,图11(b)是主视图,图11(c)是侧视图)。
具体实施方式
以下基于附图说明本发明实施方式的运动引导装置。但是,本发明的运动引导装置能够以多种方式具体化,并不限定于本说明书记载的实施方式。本实施方式意在通过使说明书的公开充分而便于本领域技术人员充分理解发明范围。
(第一实施方式)
图1至图3示出本发明第一实施方式的运动引导装置。图1是运动引导装置的立体图(包含部分剖面图)。图2将端板5拆下后的状态的运动引导装置的主视图(从滑架2的相对移动方向观察)。图3是与滑架2的相对移动方向正交的运动引导装置的剖视图。
需要说明的是,在以下的说明中,为了便于说明,使用将运动引导装置配置在水平面上且正面观察(从滑架2的相对移动方向观察)运动引导装置时的方向即图1、图2的上下、左右、前后来说明运动引导装置的构成。当然,运动引导装置的配置不限于此。
如图1所示,第一实施方式的运动引导装置是线性引导件。附图标记1是轨道构件作为的引导导轨,附图标记2是滑架,附图标记6是作为滚动体的滚珠。在滑架2的左右设有上下两条跑道状的循环通道7。循环通道7合计是4条。在第一实施方式中,为了实现低波动和高刚性,各循环通道7设有两个滚珠列6a、6b,合计8个滚珠列6a、6b。
引导导轨1在前后方向上较长。在引导导轨1的上部左右形成有沿左右方向突出的突条11。在引导导轨1上,以夹着突条11的方式,在其左右形成有作为上下两条滚动体滚行部的滚珠滚行部12。在各滚珠滚行部12形成有2条滚珠滚行槽1a,在引导导轨1上合计形成有8条滚珠滚行槽1a。滚珠滚行槽1a是由截面为单一圆弧构成的单圆弧槽。在引导导轨1上开设用于将引导导轨1向底座等安装的通孔1b。
滑架2包括:滑架主体3;内板4,其安装在滑架主体3的相对移动方向的两端面;以及端板5,其以覆盖内板4的方式安装在滑架主体3的两端面。
如图3所示,滑架主体3包括:中央部3a,其在正面观察时呈倒U字状(图3仅示出右半部分,滑架主体3为左右对称),与引导导轨1的上表面相对;以及左右的套筒部3b,其与引导导轨1的侧面相对。在滑架主体3的左右的套筒部3b形成与引导导轨1的滚珠滚行部12相对的上下两条负载滚珠滚行部13。在各负载滚珠滚行部13形成2条负载滚珠滚行槽3c,在滑架主体3上形成合计8条负载滚珠滚行槽3c。负载滚珠滚行槽3c是由截面为单一圆弧构成的单圆弧槽。
滑架主体3的负载滚珠滚行部13与引导导轨1的滚珠滚行部12之间构成负载通道C1。上侧的负载通道C1的滚珠6的接触角L1的方向与水平方向L2所成的角度是θ1。下侧的负载通道C1的滚珠6的接触角L3的方向与水平方向L2所成的角度是θ2。在此,接触角L1、L3的方向是连结滚珠6与滚珠滚行槽1a的接触点和滚珠6与负载滚珠滚行槽3c的接触点的线的方向。θ1、θ2根据滑架2承受的载荷的方向适当决定。θ1、θ2例如若设定为45°,则滑架2均匀地承受上下左右4个方向的载荷。
需要说明的是,也可以使滚珠滚行槽1a及负载滚珠滚行槽3c形成为尖拱形槽。在尖拱形槽的情况下,接触角的方向是连结滚珠滚行槽1a的尖拱形槽的底与负载滚珠滚行槽3c的尖拱形槽的底的线的方向。
如图3所示,在滑架主体3上平行于负载滚珠滚行部13形成有贯通孔14。在贯通孔14中插入构成返回通道C2的返回通道结构构件15。返回通道C2在滑架主体3的左右的套筒部3b上下设有两条,合计设有4条。返回通道C2配置在从滚珠6的接触角L1、L3的方向朝向水平方向L2偏移的位置。
如图1及图2所示,内板4包括:中央部4a,其在正面观察时呈倒U字状且与引导导轨1的上表面相对;以及左右一对套筒部4b,其与引导导轨1的侧面相对。使负载通道C1与返回通道C2相连的大致U字状的转向通道C3的内周侧形成在内板4的套筒部4b。
如图1所示,端板5也包括:中央部5a,其在正面观察时呈倒U字状且与引导导轨1的上表面相对;以及左右一对套筒部5b,其与引导导轨1的侧面相对。大致U字状的转向通道C3的外周侧形成在端板5的套筒部5b。转向通道C3在内板4及端板5的左右的套筒部4b、5b上下设有两条,合计设有4条。
端板5和内板4通过螺栓21(参照图2)安装在滑架主体3上。在端板5及内板4上形成螺栓用的通孔。螺栓21穿过端板5及内板4的通孔并拧入滑架主体3,从而将端板5及内板4安装于滑架主体3。
图4示出循环通道7的立体图,图5示出循环通道7的3面图。直线状的负载通道C1、直线状的返回通道C2及一对大致U字状的转向通道C3构成跑道状的循环通道7。循环通道7在滑架2的左右的套筒部上下设有两条,合计设有4条(参照图2)。
如图5的(a)所示,负载通道C1形成在引导导轨1与滑架主体3之间。返回通道C2形成在滑架主体3上。转向通道C3形成在内板4与端板5之间。在本实施方式中,在循环通道7中排列两个滚珠列6a、6b,因此循环通道7成为截面大致圆状的滚珠循环通道上下两层重叠的形状。
如图5的(c)所示,在从负载通道C1与返回通道C2重合的方向观察的侧面观察时,转向通道C3弯曲。在侧面观察时,在转向通道C3的中心(转向通道C3在滚珠6移动方向上的中心)与负载通道C1及返回通道C2之间,产生表示弯曲程度的偏移A。其结果,如图5的(b)所示,在正面观察时,转向通道C3以凸状弯曲。需要说明的是,从负载通道C1与返回通道C2重合的方向观察的侧面观察,是指从右斜上方向(箭头V1的方向)观察图3的上侧的负载通道C1及返回通道C2,从右斜下方向(箭头V2的方向)观察图3的下侧的负载通道C1及返回通道C2。
如图2所示,上侧的转向通道C3向上呈凸状弯曲,下侧的转向通道C3向下呈凸状弯曲。上侧的转向通道C3和下侧的转向通道C3在左右方向(宽度方向)的中央部分离最远。在上侧的转向通道C3的宽度方向的中央部与下侧的所述转向通道C3的宽度方向的中央部之间,配置端板5的安装用螺栓21。
如图6所示,保持带22具备带状的带主体22a和夹设在滚珠6之间并与带主体22a一体形成的多个间隔件22b。在本实施方式中,保持带22保持两个滚珠列6a、6b。一个滚珠列6a与另一滚珠列6b错开一半间距相位。
如图2所示,在滑架主体3中设置对负载通道C1中的保持带22进行保持、引导的保持部23a、23b、23c。图2的附图标记5是背面侧的端板。如图3所示,在滑架主体3的返回通道结构构件15上设有对返回通道C2中的保持带22进行引导的引导槽15a。在内板4与端板5之间设有对转向通道C3中的保持带22进行引导的引导槽。
如图3所示,在滑架2的截面观察时,负载通道C1中的保持带22与返回通道C2中的保持带22以ハ状张开。这是由于,为了确保负载通道C1中的滚珠6的接触宽度,将保持带22与接触角L1、L3的方向垂直配置,且为了使滑架2紧凑,将返回通道C2配置在从接触角L1、L3的方向朝向水平方向L2偏移的位置。
图7示出以ハ状张开的保持带22的立体图,图8示出以ハ状张开的保持带22的3面图。如图7所示,若将带状的保持带22以大致U字状弯曲并以ハ状张开,则如图8的(c)的侧视图所示,保持带22的转向部22c朝向张开方向P自然弯曲。该状态为产生应力最小的无约束状态。在保持带22的转向部22c的中心(保持带22的转向部22c的长度方向的中心)与保持带22的以ハ状张开后的直线部分22d之间,产生表示弯曲程度的偏移A。如图5的(c)所示,转向通道C3也配合保持带22的弯曲而朝向ハ状张开一侧弯曲,转向通道C3的偏移A与保持带22的转向部22c的偏移A一致。
根据本实施方式的运动引导装置具有以下效果。在负载通道C1与返回通道C2重合的侧面观察时,转向通道C3弯曲(参照图5的(c)),因此,无需牺牲滚珠6与滚珠滚行槽1a的接触宽度及滚珠6与负载滚珠滚行槽3c的接触宽度,能够将返回通道C2配置在从滚珠6的接触角L1、L3的方向朝向水平方向L2偏移的位置(参照图3)。因此,能够防止额定载荷及容许载荷减小,使滑架2紧凑。另外,能够增大相同尺寸的运动引导装置的额定载荷及容许载荷。
使保持带22以ハ状张开,在侧面观察时,使转向通道C3朝向保持带22以ハ状张开的方向P弯曲(参照图5的(c)、图8的(c)),因此能够使转向通道C3的弯曲与保持带22的弯曲匹配,无约束地使保持带22转向。
保持带22保持两个以上的滚珠列6a、6b,因此能够在负载通道C1和返回通道C2中使以ハ状张开的保持带22的姿势稳定(参照图3),能够防止或减轻保持带22在引导槽中滑动。
在正面观察时,上侧的转向通道C3向上呈凸状弯曲且下侧的转向通道C3向下呈凸状弯曲(参照图2),因此能够使运动引导装置更加紧凑。
上侧的转向通道C3与下侧的转向通道C3的左右方向(宽度方向)的中央部分离最远(参照图2),因此能够在二者的中央部之间配置端板5的安装用螺栓21,且能够使螺栓21尺寸更大。通常,考虑生产性及功能性,端板5使用树脂制的大致板形状构造。但由于以有限数量的螺栓21将端板5固定于金属制的滑架主体3,因此存在端板5的远离螺栓21位置的部分与滑架主体3的密合性差的可能性。以往的端板5的安装用螺栓21'不得不配置在相对于转向通道C3偏移的位置,但通过将螺栓21配置在转向通道C3的左右方向的中央部,能够提高端板5与滑架主体3的密合性。
(第二实施方式)
图9示出本发明第二实施方式的运动引导装置。图9示出将端板5拆下后的状态的运动引导装置的主视图。
第二实施方式的运动引导装置也具备:作为轨道构件的引导导轨1;以能够相对于引导导轨1相对移动的方式组装在引导导轨1上的滑架2;以及夹设在引导导轨1与滑架2之间的作为滚动体的滚珠6。在滑架2的左右设有上下两条跑道状的循环通道7。
在第二实施方式中,在循环通道7中排列1个滚珠列,这一点与第一实施方式不同。引导导轨1的各滚珠滚行部形成有1条滚珠滚行槽1a,在引导导轨1上形成合计4条滚珠滚行槽1a。在滑架主体3的各负载滚珠滚行部形成有1条负载滚珠滚行槽,在滑架主体3上形成合计4条负载滚珠滚行槽。引导导轨1、滑架主体3、内板4的其他结构与第一实施方式大致相同,因此标注相同的附图标记并省略且说明。
图10示出循环通道7的3面图。直线状的负载通道C1、直线状的返回通道C2、一对大致U字状的转向通道C3构成跑道状的循环通道7。如图10的(c)所示,在从负载通道C1与返回通道C2重合的方向观察的侧面观察时,转向通道C3弯曲。在侧面观察时,转向通道C3的中心(转向通道C3在滚珠6移动方向上的中心)与负载通道C1及返回通道C2之间产生表示弯曲程度的偏移B。其结果,如图10的(b)所示,在正面观察时,转向通道C3以凸状弯曲。
如图9所示,上侧的转向通道C3向上呈凸状弯曲且下侧的转向通道C3向下呈凸状弯曲。上侧的转向通道C3与下侧的转向通道C3在左右方向(宽度方向)的中央部分离最远。在上侧的转向通道C3的宽度方向的中央部与下侧的转向通道C3的宽度方向的中央部之间,配置有端板5的安装用螺栓21。
图11示出以ハ状张开的保持带的3面图。如图11所示,若使带状的保持带22以大致U字状弯曲并以ハ状张开,则如图11(c)的侧视图所示,保持带22的转向部22c朝向张开方向P自然弯曲。在保持带22的转向部22c的中心(保持带22的转向部22c的长度方向的中心)与以ハ状张开的直线部分22d之间产生表示弯曲程度的偏移B。如图10的(c)所示,转向通道C3也配合保持带22的弯曲朝向以ハ状张开一侧弯曲,转向通道C3的偏移B与保持带22的转向部22c的偏移B一致。
在第二实施方式中也同样地,在负载通道C1与返回通道C2重合的侧面观察时,转向通道C3弯曲(参照图10的(c)),因此,能够不牺牲滚珠6与滚珠滚行槽1a的接触宽度及滚珠6与负载滚珠滚行槽的接触宽度,将返回通道C2配置在从滚珠6的接触角的方向朝向水平方向偏移的位置(按照图9)。因此,能够防止运动引导装置的额定载荷及容许载荷减小,且能够使滑架2紧凑。
由于使保持带22以ハ状张开,且在侧面观察时使转向通道C3向保持带22以ハ状张开的一侧弯曲(按照图10的(c)、图11(c)),因此能够使转向通道C3的弯曲与保持带22的弯曲一致,使保持带22无约束地转向。
需要说明的是,本发明不限于上述实施方式,能够在不变更本发明主旨的范围内实施多种变更。
在第一及第二实施方式的运动引导装置中,能够省略保持滚珠的保持带。即,本发明也能够应用于全滚珠型的运动引导装置。
在第一及第二实施方式的运动引导装置中,在侧面观察时,转向通道的整体弯曲,但也可以仅使转向通道的一部分弯曲。
作为滚动体,也可以取代滚珠而使用辊。本发明不仅能够应用于线性引导件,也能够应用于滚珠花键。
本说明书基于2017年4月7日申请的特愿2017-076500。该申请内容全部包含在本申请中。
附图标记说明:
1…引导导轨(轨道构件)、1a…滚珠滚行槽(滚动体滚行部)、2…滑架、3…滑架主体、3c…负载滚珠滚行槽(负载滚动体滚行部)、4…内板、5…端板、6…滚珠(滚动体)、6a、6b…滚珠列、7…循环通道、12…滚珠滚行部(滚动体滚行部)、13…负载滚珠滚行部(负载滚动体滚行部)、21…螺栓、22…保持带、C1…负载通道、C2…返回通道、C3…转向通道。
Claims (4)
1.一种运动引导装置,其具备:
轨道构件,其具有滚动体滚行部;
滑架,其具有与所述滚动体滚行部相对的负载滚动体滚行部、与所述负载滚动体滚行部平行的返回通道以及与所述负载滚动体滚行部及所述返回通道相连的大致U字状的转向通道;以及
多个滚动体,它们以能够循环的方式排列在所述滚动体滚行部与所述负载滚动体滚行部之间的负载通道、所述返回通道及所述转向通道中,
其中,
所述滚动体由保持带保持,
所述保持带具备一个带状的带主体、以及夹设在所述滚动体之间并与所述带主体一体形成的多个间隔件,
在沿与所述滑架的相对移动方向正交的截面观察时,所述负载通道中的所述保持带与所述返回通道中的所述保持带以ハ状张开,
在从所述负载通道与所述返回通道重合的方向观察的侧面观察时,所述转向通道的至少一部分和所述保持带的转向部朝向所述保持带的以所述ハ状张开的方向弯曲。
2.根据权利要求1所述的运动引导装置,其中,
在所述保持带保持两列以上的所述滚动体。
3.根据权利要求1或2所述的运动引导装置,其中,
在将所述运动引导装置配置在水平面的状态的所述滑架的正面观察时,在所述滑架的左右设有上下两条所述转向通道,上侧的所述转向通道向上呈凸状弯曲,下侧的所述转向通道向下呈凸状弯曲。
4.根据权利要求3所述的运动引导装置,其中,
所述上侧的所述转向通道与所述下侧的所述转向通道在宽度方向的中央部分离最远,
在所述上侧的所述转向通道与所述下侧的所述转向通道之间,配置有形成所述转向通道的外周侧的端板的安装用螺栓。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017-076500 | 2017-04-07 | ||
JP2017076500A JP6559176B2 (ja) | 2017-04-07 | 2017-04-07 | 運動案内装置 |
PCT/JP2018/009859 WO2018186133A1 (ja) | 2017-04-07 | 2018-03-14 | 運動案内装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110494663A CN110494663A (zh) | 2019-11-22 |
CN110494663B true CN110494663B (zh) | 2020-08-04 |
Family
ID=63712090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201880023828.5A Active CN110494663B (zh) | 2017-04-07 | 2018-03-14 | 运动引导装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US11248651B2 (zh) |
JP (1) | JP6559176B2 (zh) |
KR (1) | KR102118841B1 (zh) |
CN (1) | CN110494663B (zh) |
DE (1) | DE112018001920T5 (zh) |
TW (1) | TWI680237B (zh) |
WO (1) | WO2018186133A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114623215A (zh) * | 2020-12-08 | 2022-06-14 | 李思颖 | 滚珠循环导引装置及其开口螺帽 |
CN115789086B (zh) * | 2022-12-23 | 2023-09-19 | 得发科精密制造无锡有限公司 | 一种带镶件的高刚性高负荷滚柱滑块 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6197626U (zh) * | 1985-11-21 | 1986-06-23 | ||
US4655611A (en) * | 1984-12-28 | 1987-04-07 | Nippon Thompson Co., Ltd. | Ball spline bearing assembly |
US5002403A (en) * | 1986-07-30 | 1991-03-26 | Hihaisuto Seiko Kabushiki Kaisha | Linear ball bearings |
JP2010249229A (ja) * | 2009-04-15 | 2010-11-04 | Thk Co Ltd | 運動案内装置 |
CN104271972A (zh) * | 2012-05-11 | 2015-01-07 | Thk株式会社 | 运动引导装置 |
CN105275988A (zh) * | 2014-05-28 | 2016-01-27 | 罗伯特·博世有限公司 | 具有固定孔的导引车,所述固定孔是润滑剂流动路径的组成部分 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3303832C2 (de) * | 1982-02-13 | 1985-11-07 | Hiroshi Tokio/Tokyo Teramachi | Linearlager mit umlaufenden Kugeln |
TW384362B (en) * | 1996-09-17 | 2000-03-11 | Thk Co Ltd | Ball connecting body, and linear guide device and ball screw device utilizing the ball connecting body |
JP3523973B2 (ja) * | 1996-12-27 | 2004-04-26 | Thk株式会社 | ボールチェーンを用いた直線案内装置 |
JP2003343556A (ja) | 2002-05-27 | 2003-12-03 | Nsk Ltd | リニアガイド装置 |
WO2009028328A1 (ja) * | 2007-08-30 | 2009-03-05 | Thk Co., Ltd. | 直動案内装置 |
KR101526095B1 (ko) * | 2011-04-22 | 2015-06-04 | 닛본 세이고 가부시끼가이샤 | 직동안내장치 |
TWI500856B (zh) * | 2012-12-11 | 2015-09-21 | Chieftek Prec Co Ltd | 線性滑軌之循環通道構造 |
JP2017076500A (ja) | 2015-10-14 | 2017-04-20 | 住友電装株式会社 | ワイヤハーネス |
-
2017
- 2017-04-07 JP JP2017076500A patent/JP6559176B2/ja active Active
-
2018
- 2018-03-14 US US16/500,621 patent/US11248651B2/en active Active
- 2018-03-14 WO PCT/JP2018/009859 patent/WO2018186133A1/ja active Application Filing
- 2018-03-14 DE DE112018001920.9T patent/DE112018001920T5/de active Pending
- 2018-03-14 CN CN201880023828.5A patent/CN110494663B/zh active Active
- 2018-03-14 KR KR1020197032613A patent/KR102118841B1/ko active IP Right Grant
- 2018-04-02 TW TW107111661A patent/TWI680237B/zh active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4655611A (en) * | 1984-12-28 | 1987-04-07 | Nippon Thompson Co., Ltd. | Ball spline bearing assembly |
JPS6197626U (zh) * | 1985-11-21 | 1986-06-23 | ||
US5002403A (en) * | 1986-07-30 | 1991-03-26 | Hihaisuto Seiko Kabushiki Kaisha | Linear ball bearings |
JP2010249229A (ja) * | 2009-04-15 | 2010-11-04 | Thk Co Ltd | 運動案内装置 |
CN104271972A (zh) * | 2012-05-11 | 2015-01-07 | Thk株式会社 | 运动引导装置 |
CN105275988A (zh) * | 2014-05-28 | 2016-01-27 | 罗伯特·博世有限公司 | 具有固定孔的导引车,所述固定孔是润滑剂流动路径的组成部分 |
Also Published As
Publication number | Publication date |
---|---|
US11248651B2 (en) | 2022-02-15 |
WO2018186133A1 (ja) | 2018-10-11 |
DE112018001920T5 (de) | 2019-12-19 |
US20200386270A1 (en) | 2020-12-10 |
KR20190128740A (ko) | 2019-11-18 |
TW201842276A (zh) | 2018-12-01 |
JP2018179077A (ja) | 2018-11-15 |
TWI680237B (zh) | 2019-12-21 |
JP6559176B2 (ja) | 2019-08-14 |
KR102118841B1 (ko) | 2020-06-03 |
CN110494663A (zh) | 2019-11-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9458883B2 (en) | Motion-guiding device | |
KR100319446B1 (ko) | 복렬 볼체인을 갖춘 직선운동 안내장치 | |
US7419302B2 (en) | Linear guide device and rolling element accommodating belt for the same | |
CN110494663B (zh) | 运动引导装置 | |
US20140254961A1 (en) | Motion guide device | |
US4489990A (en) | Recirculating-ball linear bearing assembly with a pair of opposed guide rails | |
US4586758A (en) | Bearing unit | |
GB2118638A (en) | Recirculating-ball linear bearing | |
US8858083B2 (en) | Motion guide device | |
EP3144551B1 (en) | Movement device | |
US9249828B2 (en) | Rolling guidance device | |
TWI611116B (zh) | 支承導引裝置 | |
JPH0715287B2 (ja) | 無限直線運動用ころ軸受 | |
US10690183B2 (en) | Motion guide device | |
US4505521A (en) | Linear slide roller bearing unit | |
JP5909869B2 (ja) | リニアガイド装置 | |
CN110494662B (zh) | 滚珠收容带及运动引导装置 | |
US20230184291A1 (en) | Motion guide apparatus | |
EP3135930B1 (en) | Motion device | |
CN111065831B (zh) | 运动引导装置 | |
US9273722B2 (en) | Rolling guide device | |
TWM531525U (zh) | 線性滑軌 | |
JPH04102715A (ja) | 直動形ガイド装置 | |
KR101393103B1 (ko) | 직동 안내 유닛용 케이지 | |
JP4556829B2 (ja) | リニアガイド装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |