WO2016131356A1 - 运动引导装置 - Google Patents

运动引导装置 Download PDF

Info

Publication number
WO2016131356A1
WO2016131356A1 PCT/CN2016/071040 CN2016071040W WO2016131356A1 WO 2016131356 A1 WO2016131356 A1 WO 2016131356A1 CN 2016071040 W CN2016071040 W CN 2016071040W WO 2016131356 A1 WO2016131356 A1 WO 2016131356A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling element
rolling
moving body
ball
rows
Prior art date
Application number
PCT/CN2016/071040
Other languages
English (en)
French (fr)
Inventor
陈瑜
王美乐
彦本健太郎
郭光明
Original Assignee
Thk株式会社
陈瑜
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thk株式会社, 陈瑜 filed Critical Thk株式会社
Priority to US15/551,114 priority Critical patent/US10082174B2/en
Priority to JP2017536552A priority patent/JP6381814B2/ja
Priority to DE112016000764.7T priority patent/DE112016000764T5/de
Publication of WO2016131356A1 publication Critical patent/WO2016131356A1/zh

Links

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
    • F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
    • F16C29/0604—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section
    • F16C29/0607—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section of parts or members for retaining the rolling elements, i.e. members to prevent the rolling elements from falling out of the bearing body or carriage
    • 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
    • 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
    • F16C29/0633—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
    • F16C29/0645—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 O-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
    • F16C33/34—Rollers; Needles
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/70—Positive connections with complementary interlocking parts
    • F16C2226/76—Positive connections with complementary interlocking parts with tongue and groove or key and slot

Definitions

  • the present invention relates to a motion guiding device, and in particular to a motion guiding device including a rolling body holding member.
  • a linear guide that is one type of motion guiding device has a rail and a moving block that is mounted in such a manner as to be movable along the rail.
  • a plurality of balls capable of rolling motion are disposed between the track and the moving block.
  • a plurality of balls circulate in an annular ball circulation path including: a ball rolling groove provided on the rail and a load ball disposed on the moving block and opposed to the ball rolling groove provided on the rail a load path formed by the rolling groove, a no-load path provided on the moving block and parallel to the load path, and a U-shaped direction provided on the moving block and connecting the end of the load path and the end of the unloaded path Conversion road.
  • Patent Document 1 discloses a ball holding member for holding a ball in a motion guiding device.
  • the ball holding member 10, the ball holding member 11, and the ball holding elastic member 13 are used to simultaneously hold the upper and lower rows of balls on one side of the moving block.
  • Patent Document 1 since the total of three holding members are required in order to simultaneously hold the upper and lower rows of balls on one side of the moving block, the number of members is large, and the assembly work is complicated.
  • Patent Document 1 JP Patent No. 2649745
  • the present invention has been made to solve the above-described drawbacks, and an object of the invention is to provide a motion guiding device which has a small number of rolling element holding members for holding a rolling element and which is easy to assemble.
  • the present invention provides a motion guiding device comprising: a support body having two rows of rolling element rolling grooves formed on both sides; and a moving body assembled to the support body along the support The body moves freely and has a negative load path opposite the rolling element rolling groove a rolling element rolling groove; the rolling elements are arranged such that the contact angle lines intersect the outer side of the support body with respect to the rolling element rolling grooves; the rolling element holding members are arranged in the rolling arranged in two columns Between the bodies, the moving body includes a moving body and a cover mounted at both ends of the moving body, and the motion guiding device is characterized in that the rolling body holding member has a shape formed at the support A rolling element holding portion that extends in the longitudinal direction and has a plate shape and is orthogonal to the longitudinal direction, and the rolling element holding portion simultaneously holds the rolling elements arranged in two rows.
  • the rolling element holding member since the rolling element holding member has the rolling element holding portion that simultaneously holds the rolling elements arranged in two rows, one of the moving bodies can be simultaneously held by one rolling element holding member without requiring other members.
  • the upper and lower rows of the rolling elements on the side reduce the number of components, and the assembly work is simple.
  • the rolling element holding portion is formed in a plate shape extending in the longitudinal direction of the support body and orthogonal to the longitudinal direction, the shape is simple. It is easy to manufacture, and accordingly, the moving body and the support body do not require special processing.
  • FIG. 1 is a perspective view of a motion guiding device of the present invention.
  • Fig. 2 is an exploded perspective view of the motion guiding device of the present invention.
  • Fig. 3 (a) is a cross-sectional view taken along line A-A of Fig. 1 of the motion guiding device of the present invention
  • Fig. 3 (b) is an enlarged view of a block portion shown by E in Fig. 3 (a).
  • Fig. 4 is a perspective view of a rolling element holding member according to an embodiment of the present invention.
  • Fig. 5 (a) is a perspective view of a moving body of the present invention
  • Fig. 5 (b) is a cross-sectional view of the moving body of the present invention taken along line BB of Fig. 5 (a)
  • Fig. 5 (c) is a view An enlarged view of the block portion shown by C in 5(b).
  • Fig. 6 (a) is a perspective view of a lid body of the present invention
  • Fig. 6 (b) is a cross-sectional view of the lid body of the present invention taken along line D-D of Fig. 6 (a).
  • Fig. 7 is a perspective view of a rolling element holding member according to another embodiment of the present invention.
  • a linear guide 1 as one type of motion guiding device is provided with a rail 2 and a moving block 3 that is movably mounted along the rail 2, and the moving block 3 is relatively opposed in the longitudinal direction of the rail 2.
  • the rail 2 is attached to a fixed side of a base or the like, and the moving block 3 is used to mount a guided object such as a workbench.
  • the moving block 3 includes a slider 3a, and an end cover 3b1, an inner direction change path forming member 3b2, and an end cover seal 3b3.
  • the U-shaped direction conversion for the direction change of the ball B to be described later in the moving block 3 is formed by fitting the inner direction switching path forming member 3b2 to the surface on the slider 3a side of the end cover 3b1. road.
  • the screw 5 is a member for screwing and fixing the end cover 3b1 and the inner direction change path forming member 3b2 to the slider 3a.
  • the screw 6 is a member for screwing and fixing the end cover seal 3b3 to the end cover 3b1 after attaching the ball holding member 4 to be described later to the end cover 3b1.
  • the rail 2 has two rows of ball rolling grooves 2a formed on both side surfaces thereof, and the slider 3a has a load ball rolling groove 3a1 which faces the ball rolling groove 2a and forms a load path. Further, the slider 3a further has a no-load passage 3a2 parallel to the load passage.
  • a plurality of balls B capable of rolling motion are disposed between the rail 2 and the moving block 3. The plurality of balls B circulate in an annular ball circulation path including the above-described load passage, the above-described no-load passage 3a2, and the above-described end portion connecting the end portion of the load passage and the end portion of the unloaded passage 3a2. U-shaped direction change path. Thereby, the moving block 3 can move linearly along the track 2 freely.
  • the ball holding member 4 is a member for holding the ball B between the rail 2 and the moving block 3, and has a ball holding portion 4a having a bent portion 4b1 and a fixing portion 4b as shown in FIG. The locking portion 4b2.
  • the balls B are arranged such that the contact angle lines intersect the ball rolling grooves 2 a on the outer side of the rail 2 , and the ball holding members 4 are arranged as described above.
  • the ball holding portion 4a is formed in a plate shape extending in the longitudinal direction of the rail 2 and orthogonal to the longitudinal direction, and the ball holding portion 4a simultaneously holds the balls arranged in two rows as described above. B.
  • the ball holding member 4 can hold the upper and lower rows of the balls B on one side of the moving block 3 at the same time without requiring other members, thereby reducing the number of components and facilitating the assembly work.
  • the ball holding portion 4a is formed in a plate shape extending in the longitudinal direction of the rail 2 and orthogonal to the longitudinal direction, the shape is simple and easy to manufacture, and accordingly, the block 3 and the rail 2 are not required to be specially processed. .
  • the slider 3a has an inner wall portion 3a3 opposed to the ball holding portion 4a, and has a gap between the ball holding portion 4a and the inner wall portion 3a3. That is, the ball holding portion 4a is not in contact with the inner wall portion 3a3, whereby the influence of the slider 3a on the ball holding member 4 is reduced, and the ball is protected.
  • the holding member 4 is relatively stable. Specifically, since the inner wall portion 3a3 of the slider 3a has manufacturing tolerances, the ball holding member 4 may be deformed by the inner wall portion 3a3 if it comes into contact with the inner wall portion 3a3.
  • the above problem is eliminated by providing a gap between the ball holding portion 4a and the inner wall portion 3a3, and the holding of the balls B by the ball holding member 4 becomes more stable. Moreover, by having a gap between the ball holding portion 4a and the inner wall portion 3a3, it is not necessary to perform positioning between the ball holding member 4 and the slider 3a, so that the tolerance design can be easily performed. Further, by providing a gap between the ball holding portion 4a and the inner wall portion 3a3, it is also convenient for maintenance.
  • the slider 3a has a portion formed in a manner close to the rail 2, and more specifically, on the side of the load ball rolling groove 3a1 of the slider 3a, The entangled portion of the ball B is formed large. Since the hoop portion that is hung in the ball B is formed to be large, the ball B can be held to some extent, and therefore the ball B can be more reliably and stably held by the thin plate-shaped ball holding portion 4a.
  • FIGS. 5(a) to 5(c) show the assembled state of the exploded moving block 2 shown in FIG. 2, in which the illustration of the end cover seal 3b3 and the screw 6 is omitted.
  • the ball holding members 4 for holding the upper and lower rows of balls B on one side of the moving block 3 are locked to the end cover 3b1.
  • a receiving groove 3b11 for accommodating the curved portion 4b1 is formed on a surface of the end cover 3b1 opposite to the surface on the side of the slider 3a.
  • the ball holding member 4b accommodates the bending portion 4b1 in the receiving groove 3b11, for example, by elastically, and causes the ball holding portion 4b to be accommodated in the receiving groove 3b11.
  • the locking portion 4b2 is locked in the locking groove 3b12, and is thereby locked and fixed to the end cover 3b1.
  • the ball holding member 4 Since the ball holding member 4 has the curved portion 4b1 and the locking portion 4b2 as described above, it can be locked and fixed to the end cover 3b1 without using a mounting member such as a screw. Therefore, the number of members is small, and assembly work is easy.
  • FIG. 7 is a modification of the ball holding member 4 of the present invention. As shown in FIG. 7, this modification differs from the ball holding member 4 shown in FIG. 4 in that the ball holding portion 4a is formed with a recess 4a1 in a part thereof.
  • the holding strength of the ball holding portion 4a can be improved, and the ball B can be held more stably.
  • linear guide 1 of the present invention has been described above with reference to the specific embodiments shown in FIGS. 1 to 7. structure.
  • the present invention provides a linear guide 1 characterized in that
  • the rail 2 is provided with two rows of ball rolling grooves 2a on both sides;
  • the moving block 3 is assembled on the rail 2 and movable along the rail 2, and has a load passage opposite to the ball rolling groove 2a.
  • the load ball rolling groove 3a1; the ball B is arranged such that the contact angle line intersects the ball rolling groove 2a on the outer side of the rail 2; the ball holding member 4 is disposed between the balls B arranged in two rows, and moves
  • the block 3 includes a slider 3a and an end cover 3b1 mounted at both ends of the slider 3a, the linear guide 1 being characterized in that the ball holding member 4 has a plate shape formed to extend in the longitudinal direction of the rail 2 and The ball holding portion 4a having the orthogonal direction in the longitudinal direction and the ball holding portion 4a simultaneously hold the balls B arranged in two rows.
  • the ball holding member 4 Since the ball holding member 4 has the ball holding portion 4a that simultaneously holds the balls B arranged in two rows, the ball holding members 4 can hold the upper and lower rows of the balls B on one side of the moving block 3 at the same time without requiring other members. This reduces the number of parts and makes assembly work easy. Further, since the ball holding portion 4a is formed in a plate shape extending in the longitudinal direction of the rail 2 and orthogonal to the longitudinal direction, the shape is simple and easy to manufacture, and accordingly, the block 3 and the rail 2 are not required to be specially processed. .
  • the slider 3a has an inner wall portion 3a3 opposed to the ball holding portion 4a, and has a gap between the ball holding portion 4a and the inner wall portion 3a3.
  • the ball holding portion 4a Since the ball holding portion 4a is not in contact with the inner wall portion 3a3, the influence of the slider 3a on the ball holding member 4 is reduced, the ball holding member 4 is relatively stabilized, and the ball holding member 4 and the slider 3a are not required to be provided.
  • the positioning is easy to carry out the design on the tolerance, and further, it is convenient to maintain by having a gap.
  • the ball holding member 4 has a fixing portion 4b in addition to the ball holding portion 4a, the fixing portion 4b has a bent portion 4b1 and a locking portion 4b2, and the end cover 3b1 is formed with a receiving groove 3b11 for accommodating the curved portion 4b1 and housing The locking groove 3b12 of the locking portion 4b2.
  • the ball holding member 4 Since the ball holding member 4 has the curved portion 4b1 and the locking portion 4b2 as described above, it can be locked and fixed to the end cover 3b1 without using a mounting member such as a screw. Therefore, the number of members is small, and assembly work is easy.
  • the ball holding portion 4a is formed with a recess 4a1 in a part thereof.
  • the holding strength of the ball holding portion 4a can be improved, and the ball B can be more stably performed. maintain.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

一种运动引导装置（1），具备：支承体（2），其在两侧面分别形成有两列的滚动体滚动槽（2a）；移动体（3），其组装于支承体（2）而沿着支承体（2）移动自如，并且具有与滚动体滚动槽（2a）对置而形成负荷通路的负荷滚动体滚动槽（2a）；滚动体（B），其以接触角线相对于滚动体滚动槽（2a）在支承体（2）的外侧相交的方式排列；滚动体保持构件（4），其配置于排列成两列的滚动体（B）之间；移动体（3）包括移动体主体（3a）和在所述移动体主体（3a）的两端安装的盖体（3b1）；在该运动引导装置（1）中，滚动体保持构件（4）具有形成为在支承体（2）的长度方向上延伸的板状且与该长度方向正交的滚动体保持部（4a），滚动体保持部（4a）同时保持排列成两列的滚动体（B）。在该运动引导装置中，通过一个滚动体保持构件，不需要其他构件，就能够同时保持移动体的一侧的上下两列滚动体，从而减少了部件个数，组装作业简便。

Description

运动引导装置 技术领域
本发明涉及一种运动引导装置，具体而言涉及一种具备滚动体保持构件的运动引导装置。
背景技术
作为运动引导装置的一种的直线导轨具备轨道和以能够沿着轨道移动的方式安装的移动块。在轨道和移动块之间设置有多个能够进行滚动运动的滚珠。多个滚珠在环状的滚珠循环路中循环，该滚珠循环路包括：由在轨道上设置的滚珠滚动槽和在移动块上设置且与该在轨道上设置的滚珠滚动槽对置的负荷滚珠滚动槽构成的负荷通路、在移动块上设置且与该负荷通路平行的无负荷通路、以及在移动块上设置且将负荷通路的端部和无负荷通路的端部连接的U字状的方向转换路。
在上述的直线导轨中，需要对在负荷通路中滚动的滚珠进行保持的滚珠保持构件。
举例来说，专利文献1公开了一种用于运动引导装置中的对滚珠进行保持的滚珠保持构件。在该专利文献1中，例如参见其图4可知，利用滚珠保持构件10、滚珠保持构件11和滚珠保持弹性构件13来同时保持移动块的一侧的上下两列滚珠。
但是，在专利文献1中，由于为了同时保持移动块的一侧的上下两列滚珠，需要上述总计3个保持构件，因此，构件个数多，组装作业繁杂。
专利文献1：JP特许2649745号公报
发明内容
本发明正是为了解决上述缺陷而提出的，其目的在于提供一种对滚动体进行保持的滚动体保持构件的个数少、组装作业简便的运动引导装置。
为了实现上述目的，本发明提供一种运动引导装置，具备：支承体，其在两侧面分别形成有两列的滚动体滚动槽；移动体，其组装于所述支承体而沿着所述支承体移动自如，并且具有与所述滚动体滚动槽对置而形成负荷通路的负 荷滚动体滚动槽；滚动体，其以接触角线相对于所述滚动体滚动槽在所述支承体的外侧相交的方式排列；滚动体保持构件，其配置于排列成两列的所述滚动体之间，所述移动体包括移动体主体和在所述移动体主体的两端安装的盖体，所述运动引导装置的特征在于，所述滚动体保持构件具有形成为在所述支承体的长度方向上延伸的板状且与该长度方向正交的滚动体保持部，所述滚动体保持部同时保持排列成两列的所述滚动体。
发明效果
根据本发明的运动引导装置，由于滚动体保持构件具有同时保持排列成两列的滚动体的滚动体保持部，因此通过一个滚动体保持构件，不需要其他构件，就能够同时保持移动体的一侧的上下两列滚动体，从而减少了部件个数，组装作业简便；另外，由于滚动体保持部形成为在支承体的长度方向上延伸的板状且与该长度方向正交，因此形状简单，容易制作，进而相应地移动体和支承体也不需要特殊的加工。
附图说明
图1是本发明的运动引导装置的立体图。
图2是本发明的运动引导装置的分解立体图。
图3(a)是本发明的运动引导装置的沿着图1中的A-A线剖开的剖面图，图3(b)是图3(a)中E所示的方框部的放大图。
图4是本发明的一实施方式的滚动体保持构件的立体图。
图5(a)是本发明的移动体的立体图，图5(b)是本发明的移动体的沿着图5(a)中的B-B线剖开的剖面图，图5(c)是图5(b)中C所示的方框部的放大图。
图6(a)是本发明的盖体的立体图，图6(b)是本发明的盖体的沿着图6(a)中的D-D线剖开的剖面图。
图7是本发明的另一实施方式的滚动体保持构件的立体图。
符号说明
1 直线导轨(运动引导装置)
2 轨道(支承体)
2a 滚珠滚动槽
2b 外壁面
3 移动块(移动体)
3a 滑块(移动体主体)
3a1 负荷滚珠滚动槽
3a2 无负荷通路
3a3 内壁部
3b1 端盖板(盖体)
3b11 收容槽
3b12 卡止槽
3b2 内侧方向转换路形成构件
3b3 端盖板密封件
4 滚珠保持构件
4a 滚珠保持部
4a1 凹部
4b 固定部
4b1 弯曲部
4b2 卡止部
5 螺钉
6 螺钉
B 滚珠(滚动体)
具体实施方式
以下，参照附图对本发明的各部分结构和功能进行详细的说明。另外，在以下的说明中，对于相同或相应的构件或结构标注相同的符号而省略重复的说明。
如图1所示，作为运动引导装置的一种的直线导轨1具备轨道2和以能够沿着轨道2移动自如的方式安装的移动块3，移动块3在轨道2的长度方向上相对地进行直线运动。另外，轨道2安装于基座等的固定侧，移动块3用于安装工作台等被引导对象。
而且，如图2所示，移动块3包括滑块3a、以及端盖板3b1、内侧方向转换路形成构件3b2和端盖板密封件3b3。另外，通过将内侧方向转换路形成构件3b2嵌合于端盖板3b1中的滑块3a侧的面上而形成供后述的滚珠B在移动块3中进行方向转换的U字状的方向转换路。进而，螺钉5是用于将端盖板3b1和内侧方向转换路形成构件3b2拧止固定于滑块3a上的构件。另外，螺钉6是用于在将后述的滚珠保持构件4安装于端盖板3b1上后将端盖板密封件3b3拧止固定于端盖板3b1上的构件。
进而，如图3(a)所示，轨道2在其两侧面分别形成有两列的滚珠滚动槽2a，滑块3a具有与滚珠滚动槽2a对置而形成负荷通路的负荷滚珠滚动槽3a1，并且，滑块3a还具有与负荷通路平行的无负荷通路3a2。在轨道2和移动块3之间设置有多个能够进行滚动运动的滚珠B。多个滚珠B在环状的滚珠循环路中循环，该滚珠循环路包括上述的负荷通路、上述的无负荷通路3a2、以及将负荷通路的端部和无负荷通路3a2的端部连接的上述的U字状的方向转换路。由此，移动块3能够沿着轨道2移动自如地进行直线运动。
以下，参照图3～图7详细地说明本发明的实施方式的滚珠保持构件4。
滚珠保持构件4是设置于轨道2和移动块3之间而用于保持滚珠B的构件，如图4所示，具有滚珠保持部4a和固定部4b，其中，固定部4b具有弯曲部4b1和卡止部4b2。
具体来说，如图3(a)和图3(b)所示，滚珠B以接触角线相对于滚珠滚动槽2a在轨道2的外侧相交的方式排列，滚珠保持构件4配置于如上排列成两列的滚珠B之间，并且具有形成为在轨道2的长度方向上延伸的板状且与该长度方向正交的滚珠保持部4a，该滚珠保持部4a同时保持如上排列成两列的滚珠B。由此通过一个滚珠保持构件4，不需要其他构件，就能够同时保持移动块3的一侧的上下两列滚珠B，从而减少了部件个数，组装作业简便。另外，由于滚珠保持部4a形成为在轨道2的长度方向上延伸的板状且与该长度方向正交，因此形状简单，容易制作，进而相应地移动块3和轨道2也不需要特殊的加工。
进而，如图3(b)所示，滑块3a具有与滚珠保持部4a对置的内壁部3a3，在滚珠保持部4a和内壁部3a3之间具有间隙。也就是说，滚珠保持部4a与内壁部3a3不接触，由此，减少了滑块3a对滚珠保持构件4的影响，使滚珠保 持构件4相对稳定。具体来说，由于滑块3a的内壁部3a3存在制造公差，因此滚珠保持构件4如果与该内壁部3a3接触，则有可能受到该内壁部3a3的影响而产生变形。相对于此，本发明通过在滚珠保持部4a和内壁部3a3之间设置间隙而消除了上述问题，基于滚珠保持构件4的滚珠B的保持变得更稳定。而且，通过在滚珠保持部4a和内壁部3a3之间具有间隙，由此不需要进行滚珠保持构件4和滑块3a之间的定位，从而容易进行公差上的设计。进而，通过在滚珠保持部4a和内壁部3a3之间具有间隙，在维护保养上也方便。
需要说明的是，如图3(b)中的圆圈部分所示，滑块3a具有以接近轨道2的方式形成的部分，更具体地说，在滑块3a的负荷滚珠滚动槽3a1侧，抱入滚珠B的抱入部形成得大。由于抱入滚珠B的抱入部形成得大，能够以某种程度保持滚珠B，因此能够仅仅利用薄板状的滚珠保持部4a更加可靠稳定地保持滚珠B。
进而，图5(a)～图5(c)示出了将图2所示的分解的移动块2组装之后的图，其中，省略了端盖板密封件3b3和螺钉6的图示。根据该图5(a)～图5(c)所示，用于同时保持移动块3的一侧的上下两列滚珠B的滚珠保持构件4卡止于端盖板3b1上。具体来说，如图6(a)和图6(b)所示，在端盖板3b1中的与滑块3a侧的面相反一侧的面上形成有收容弯曲部4b1的收容槽3b11和收容卡止部4b2的卡止槽3b12，滚珠保持构件4在利用滚珠保持部4a保持有如上排列成两列的滚珠B的情况下例如通过弹性而使弯曲部4b1收容于收容槽3b11中且使卡止部4b2卡止于卡止槽3b12中，由此被卡止固定于端盖板3b1上。
滚珠保持构件4由于具有如上所述的弯曲部4b1和卡止部4b2，因此无需使用螺钉等安装构件就能够被卡止固定于端盖板3b1上，因而，构件个数少，组装作业容易。
另外，图7是本发明的滚珠保持构件4的变形例。如该图7所示，该变形例相对于图4所示的滚珠保持构件4的区别在于，滚珠保持部4a在其一部分上形成有凹部4a1。
通过如此在滚珠保持部4a上设置凹部4a1，能够提高滚珠保持部4a的保持强度，从而更稳定地对滚珠B进行保持。
以上，通过图1～7所示的具体实施方式说明了本发明的直线导轨1的具体 结构。
如以上的说明可知，为了实现提供一种对滚珠B进行保持的滚珠保持构件4的个数少、组装作业简便的直线导轨1的发明目的，本发明提供一种直线导轨1，其特征在于，具备：轨道2，其在两侧面分别形成有两列的滚珠滚动槽2a；移动块3，其组装于轨道2而沿着轨道2移动自如，并且具有与滚珠滚动槽2a对置而形成负荷通路的负荷滚珠滚动槽3a1；滚珠B，其以接触角线相对于滚珠滚动槽2a在轨道2的外侧相交的方式排列；滚珠保持构件4，其配置于排列成两列的滚珠B之间，移动块3包括滑块3a和在滑块3a的两端安装的端盖板3b1，所述直线导轨1的特征在于，滚珠保持构件4具有形成为在轨道2的长度方向上延伸的板状且与该长度方向正交的滚珠保持部4a，滚珠保持部4a同时保持排列成两列的滚珠B。
由于滚珠保持构件4具有同时保持排列成两列的滚珠B的滚珠保持部4a，因此通过一个滚珠保持构件4，不需要其他构件，就能够同时保持移动块3的一侧的上下两列滚珠B，从而减少了部件个数，组装作业简便。另外，由于滚珠保持部4a形成为在轨道2的长度方向上延伸的板状且与该长度方向正交，因此形状简单，容易制作，进而相应地移动块3和轨道2也不需要特殊的加工。
优选，滑块3a具有与滚珠保持部4a对置的内壁部3a3，在滚珠保持部4a和内壁部3a3之间具有间隙。
由于滚珠保持部4a与内壁部3a3不接触，由此，减少了滑块3a对滚珠保持构件4的影响，使滚珠保持构件4相对稳定，而且，不需要进行滚珠保持构件4和滑块3a之间的定位，从而容易进行公差上的设计，进而，通过具有间隙，在维护保养上也方便。
优选，滚珠保持构件4除滚珠保持部4a之外还具有固定部4b，固定部4b具有弯曲部4b1和卡止部4b2，在端盖板3b1上形成有收容弯曲部4b1的收容槽3b11和收容卡止部4b2的卡止槽3b12。
滚珠保持构件4由于具有如上所述的弯曲部4b1和卡止部4b2，因此无需使用螺钉等安装构件就能够被卡止固定于端盖板3b1上，因而，构件个数少，组装作业容易。
优选，滚珠保持部4a在一部分形成有凹部4a1。
由此，能够提高滚珠保持部4a的保持强度，从而更稳定地对滚珠B进行 保持。
如上所述，本发明参照附图对优选的实施方式进行了充分记载，但对于本领域技术人员来说能够了解各种变形或变更，这些变形或变更只要没有脱离本发明的技术方案限定的范围，均应被涵盖于其中。

Claims (4)

  1. 一种运动引导装置，具备：
    支承体，其在两侧面分别形成有两列的滚动体滚动槽；
    移动体，其组装于所述支承体而沿着所述支承体移动自如，并且具有与所述滚动体滚动槽对置而形成负荷通路的负荷滚动体滚动槽；
    滚动体，其以接触角线相对于所述滚动体滚动槽在所述支承体的外侧相交的方式排列；
    滚动体保持构件，其配置于排列成两列的所述滚动体之间，
    所述移动体包括移动体主体和在所述移动体主体的两端安装的盖体，
    所述运动引导装置的特征在于，
    所述滚动体保持构件具有形成为在所述支承体的长度方向上延伸的板状且与该长度方向正交的滚动体保持部，
    所述滚动体保持部同时保持排列成两列的所述滚动体。
  2. 根据权利要求1所述的运动引导装置，其特征在于，
    所述移动体主体具有与所述滚动体保持部对置的内壁部，
    在所述滚动体保持部和所述内壁部之间具有间隙。
  3. 根据权利要求2所述的运动引导装置，其特征在于，
    所述滚动体保持构件除所述滚动体保持部之外还具有固定部，
    所述固定部具有弯曲部和卡止部，
    在所述盖体上形成有收容所述弯曲部的收容槽和收容所述卡止部的卡止槽。
  4. 根据权利要求2所述的运动引导装置，其特征在于，
    所述滚动体保持部在一部分形成有凹部。
PCT/CN2016/071040 2015-02-16 2016-01-15 运动引导装置 WO2016131356A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US15/551,114 US10082174B2 (en) 2015-02-16 2016-01-15 Movement guide device
JP2017536552A JP6381814B2 (ja) 2015-02-16 2016-01-15 運動案内装置
DE112016000764.7T DE112016000764T5 (de) 2015-02-16 2016-01-15 Bewegungsführungsvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510084770.3 2015-02-16
CN201510084770.3A CN105987081B (zh) 2015-02-16 2015-02-16 运动引导装置

Publications (1)

Publication Number Publication Date
WO2016131356A1 true WO2016131356A1 (zh) 2016-08-25

Family

ID=56688656

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/071040 WO2016131356A1 (zh) 2015-02-16 2016-01-15 运动引导装置

Country Status (6)

Country Link
US (1) US10082174B2 (zh)
JP (1) JP6381814B2 (zh)
CN (1) CN105987081B (zh)
DE (1) DE112016000764T5 (zh)
TW (1) TWI673442B (zh)
WO (1) WO2016131356A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6707011B2 (ja) * 2016-10-25 2020-06-10 Thk株式会社 運動案内装置及び搬送装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2649745B2 (ja) * 1991-04-16 1997-09-03 日本ベアリング 株式会社 直線摺動用ボールベアリングにおけるボール組み付け方法
CN1196780A (zh) * 1996-05-02 1998-10-21 Thk株式会社 滚动运动导引装置和滚动引导装置的移动构件的制造方法
CN1199451A (zh) * 1996-06-18 1998-11-18 Thk株式会社 具有多列滚子链的直线运动导引装置
US20050018933A1 (en) * 2003-07-24 2005-01-27 Nippon Thompson Co., Ltd. Linear motion guide unit
TW200530517A (en) * 2004-03-03 2005-09-16 Hiwin Tech Corp Ball retainer of linear guideway
CN203979141U (zh) * 2014-05-28 2014-12-03 Thk株式会社 运动引导装置
CN104271972A (zh) * 2012-05-11 2015-01-07 Thk株式会社 运动引导装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994618U (ja) 1982-12-16 1984-06-27 日本ベアリング株式会社 スライドベアリング
DE3313129A1 (de) * 1983-04-12 1984-10-18 Neff Gewindespindeln Linearlageranordnung zur geradlinigen fuehrung eines schlittens laengs einer fuehrungsschiene
JPS6192319A (ja) * 1985-06-20 1986-05-10 Hiroshi Teramachi 隙間調整装置を備えた無限摺動直線ころがり軸受
JPH0715287B2 (ja) * 1986-08-19 1995-02-22 日本トムソン株式会社 無限直線運動用ころ軸受
US4932067A (en) * 1989-05-30 1990-06-05 Thomson Industries, Inc. Linear motion bearing
US5584581A (en) * 1993-09-10 1996-12-17 Deutsche Star Gmbh Linear guiding device
DE19643737A1 (de) * 1996-04-20 1998-04-30 Schaeffler Waelzlager Ohg Linearwälzlager
TW575105U (en) * 2003-01-16 2004-02-01 Hiwin Tech Corp Linear guideway with ball retainer
TWM264895U (en) * 2004-10-07 2005-05-21 Jin-Yi Wang Combination assembly of strap and adjusting/fixing device
TWI440784B (zh) * 2011-11-29 2014-06-11 A linear slide with a retainer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2649745B2 (ja) * 1991-04-16 1997-09-03 日本ベアリング 株式会社 直線摺動用ボールベアリングにおけるボール組み付け方法
CN1196780A (zh) * 1996-05-02 1998-10-21 Thk株式会社 滚动运动导引装置和滚动引导装置的移动构件的制造方法
CN1199451A (zh) * 1996-06-18 1998-11-18 Thk株式会社 具有多列滚子链的直线运动导引装置
US20050018933A1 (en) * 2003-07-24 2005-01-27 Nippon Thompson Co., Ltd. Linear motion guide unit
TW200530517A (en) * 2004-03-03 2005-09-16 Hiwin Tech Corp Ball retainer of linear guideway
CN104271972A (zh) * 2012-05-11 2015-01-07 Thk株式会社 运动引导装置
CN203979141U (zh) * 2014-05-28 2014-12-03 Thk株式会社 运动引导装置

Also Published As

Publication number Publication date
TW201631262A (zh) 2016-09-01
DE112016000764T5 (de) 2018-01-18
US20180031036A1 (en) 2018-02-01
US10082174B2 (en) 2018-09-25
CN105987081A (zh) 2016-10-05
TWI673442B (zh) 2019-10-01
CN105987081B (zh) 2019-03-19
JP2018501451A (ja) 2018-01-18
JP6381814B2 (ja) 2018-08-29

Similar Documents

Publication Publication Date Title
CN104271972B (zh) 运动引导装置
JP3547209B2 (ja) 直動転がり案内ユニット
JP2012202458A (ja) クロスローラ有限直動案内ユニット
WO2016131356A1 (zh) 运动引导装置
JP2006046644A (ja) 再循環リニアボールベアリング
TW201719038A (zh) 具上防塵元件之線性滑軌
JP4295576B2 (ja) 直動案内ユニット
JP6876370B2 (ja) 直動案内ユニット
JP7251101B2 (ja) 直動案内装置
US11542983B2 (en) Motion guide device
JP4738268B2 (ja) 小型直動案内ユニット
JP5061743B2 (ja) 保持器及びその保持器を使用した直動装置
WO2018186220A1 (ja) ボール収容バンド及び運動案内装置
JP6349084B2 (ja) ボールスプライン
JP6584990B2 (ja) ステージ装置
JP6458362B2 (ja) 直動案内装置
US20170184126A1 (en) Fan fixing device
JP6644602B2 (ja) 接続ユニットおよびステージ装置
JP6294664B2 (ja) ボールスプライン
JP2012107666A (ja) 軌道レールカバー及び運動案内装置
JP2003172350A (ja) 直動案内装置
JPH1142586A (ja) コンプライアンス装置
JP2007113600A (ja) 直動案内装置用スライダおよび直動案内装置
JP2008309248A (ja) 保持器及びその保持器を使用した直動装置
KR20190067491A (ko) 2축 슬라이딩장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16751887

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017536552

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 15551114

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 112016000764

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16751887

Country of ref document: EP

Kind code of ref document: A1