JP2007120528A - Linear guide bearing device - Google Patents

Linear guide bearing device Download PDF

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Publication number
JP2007120528A
JP2007120528A JP2005309713A JP2005309713A JP2007120528A JP 2007120528 A JP2007120528 A JP 2007120528A JP 2005309713 A JP2005309713 A JP 2005309713A JP 2005309713 A JP2005309713 A JP 2005309713A JP 2007120528 A JP2007120528 A JP 2007120528A
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rolling element
rolling
guide bearing
bearing device
linear motion
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Japanese (ja)
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Yasuyuki Yamazaki
泰之 山崎
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NSK Ltd
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NSK Ltd
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Priority to JP2005309713A priority Critical patent/JP2007120528A/en
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    • 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
    • F16C29/065—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 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
    • 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
    • F16C29/0611—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the return passages, i.e. the passages where the rolling elements do not carry load
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a linear guide bearing device which can easily and inexpensively making the accurate positioning of a circulation sleeve. <P>SOLUTION: Between upper and lower rolling element rolling grooves 5 of a slider body 2A, a sectionally V-shaped recessed groove (a positioning engaging portion) 40 is formed which is cut at the same time when the rolling element rolling grooves 5 are cut. At the lower part of the face of a protruded portion 20 of the circulation sleeve 8 on the opposite side to an inner periphery side raceway 10a, a sectionally circular protrusion (an engaged portion) 41 is formed which is engaged with both side faces of the recessed groove 40. The outer peripheral face of the protrusion 41 on the side of the circulation sleeve 8 inserted into a hole 7 is engaged with both side faces of the recessed groove 40 to position the circulation sleeve 8. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、例えば、産業機械分野等に用いられる直動案内軸受装置に関する。   The present invention relates to a linear motion guide bearing device used in, for example, the industrial machine field.

従来のこの種の直動案内軸受装置としては、例えば、図６に示すものが知られている（例えば、特許文献１参照）。
この直動案内軸受装置は、軸方向に延びる案内レール１と、該案内レール１上に軸方向に相対移動可能に跨架されたスライダ２とを備えており、案内レール１の幅方向の両側面にはそれぞれ軸方向に延びる転動体転動溝３が片側二条列ずつ、合計４条列形成されている。 As a conventional linear guide bearing device of this type, for example, the one shown in FIG. 6 is known (see, for example, Patent Document 1).
The linear motion guide bearing device includes a guide rail 1 extending in the axial direction and a slider 2 straddling the guide rail 1 so as to be relatively movable in the axial direction. A total of four rows of rolling element rolling grooves 3 extending in the axial direction are formed on the surface, two rows on one side.

スライダ２のスライダ本体２Ａには、その両袖部４の内側面にそれぞれ転動体転動溝３に対向する転動体転動溝５が形成されており、これらの両転動体転動溝３，５によって負荷軌道が形成されている。
負荷軌道には転動体としての多数の円筒ころ６が転動自在に装填され、これらの円筒ころ６の転動を介してスライダ２が案内レール１上を軸方向に沿って相対移動できるようになっている。 The slider body 2A of the slider 2 is formed with rolling element rolling grooves 5 opposed to the rolling element rolling grooves 3 on the inner side surfaces of both sleeve portions 4, respectively. A load track is formed by 5.
A large number of cylindrical rollers 6 as rolling elements are slidably loaded on the load track so that the slider 2 can relatively move along the axial direction on the guide rail 1 through the rolling of these cylindrical rollers 6. It has become.

この移動につれて、案内レール１とスライダ２との間に介在する円筒ころ６は転動してスライダ２の軸方向の端部に移動するが、スライダ２を軸方向に継続移動させていくためには、これらの円筒ころ６を無限に循環させる必要がある。
このため、スライダ本体２Ａの袖部４内に軸方向に貫通する孔７を形成して該孔７に内部が円筒ころ６の通路（転動体通路）８ａとされた循環スリーブ８を嵌め込むと共に、スライダ本体２Ａの軸方向の両端にそれぞれエンドキャップ９をねじ等を介して固定し、このエンドキャップ９に前記負荷軌道と転動体通路８ａとを連通する円弧状に湾曲した方向転換路１０を形成することにより、円筒ころ６の無限循環軌道を形成している。 Along with this movement, the cylindrical roller 6 interposed between the guide rail 1 and the slider 2 rolls and moves to the end of the slider 2 in the axial direction, but the slider 2 continues to move in the axial direction. Needs to circulate these cylindrical rollers 6 indefinitely.
For this reason, a hole 7 penetrating in the axial direction is formed in the sleeve portion 4 of the slider body 2A, and a circulation sleeve 8 whose inside is a passage (rolling member passage) 8a of the cylindrical roller 6 is fitted into the hole 7. The end caps 9 are fixed to both ends of the slider body 2A in the axial direction via screws or the like, and the end caps 9 are provided with the direction change paths 10 curved in an arc shape for communicating the load track and the rolling element passage 8a. By forming, an endless circulation track of the cylindrical roller 6 is formed.

なお、方向転換路１０は、上側の転動体通路８ａと下側の両転動体転動溝３，５間とを連通するものと、下側の転動体通路８ａと上側の両転動体転動溝３，５間とを連通するものが互いに立体交差するように配置されている。
特開２００２−５４６３３号公報 The direction change path 10 communicates between the upper rolling element passage 8a and the lower rolling element rolling grooves 3 and 5, and the lower rolling element path 8a and the upper rolling element rolling elements. Those communicating with the grooves 3 and 5 are arranged so as to cross each other three-dimensionally.
JP 2002-54633 A

上記従来の直動案内軸受装置においては、例えば、循環スリーブ８をスライダ本体２Ａの孔７に嵌め込んで取り付ける際に、該循環スリーブ８の転動体通路８ａは円筒ころ６の通路で断面長方形状をなしていることから、前記無限循環軌道を形成するためには、循環スリーブ８を孔７に対して該循環スリーブ８の位相が合うように注意深く挿入して位置決めするか、挿人後に循環スリーブ８の位相が合うように循環スリーブ８を回転させて位置決めする必要がなり、この位置決め作業が面倒であるという問題がある。
本発明は、このような不都合を解消するためになされたものであり、取付部品の正確な位置決めを容易、且つ低コストで実現することができる直動案内軸受装置を提供することを目的とする。 In the conventional linear motion guide bearing device, for example, when the circulation sleeve 8 is fitted into the hole 7 of the slider body 2A and attached, the rolling element passage 8a of the circulation sleeve 8 is a passage of the cylindrical roller 6 and has a rectangular cross section. Therefore, in order to form the endless circulation track, the circulation sleeve 8 is carefully inserted and positioned so that the phase of the circulation sleeve 8 is in phase with the hole 7, or the circulation sleeve 8 is inserted after insertion. Therefore, it is necessary to rotate and position the circulation sleeve 8 so that the phases of 8 are in phase, and this positioning work is troublesome.
The present invention has been made in order to eliminate such inconveniences, and an object of the present invention is to provide a linear guide bearing device that can realize accurate positioning of mounting parts easily and at low cost. .

上記目的を達成するために、請求項１に係る発明は、軸方向に延びる転動体転動溝を有する案内レールと、該案内レールの前記転動体転動溝に対向する転動体転動溝を有し、これらの両転動体転動溝間の負荷軌道に挿入された多数の転動体の転動を介して軸方向に沿って相対移動可能に前記案内レールに跨架されたスライダとを備えた直動案内軸受装置であって、
前記転動体転動溝の研削加工と同時に研削加工された位置決め係合部を設け、該位置決め係合部に、所定の取付部品に設けた被係合部を係合させて、該取付部品の位置決めを行うことを特徴とする。 To achieve the above object, the invention according to claim 1 includes a guide rail having a rolling element rolling groove extending in the axial direction, and a rolling element rolling groove facing the rolling element rolling groove of the guide rail. And a slider straddled on the guide rail so as to be relatively movable along the axial direction through rolling of a large number of rolling elements inserted in a load track between the rolling grooves of both the rolling elements. A linear motion guide bearing device,
A positioning engaging portion ground at the same time as grinding of the rolling element rolling groove is provided, and an engaged portion provided in a predetermined mounting component is engaged with the positioning engaging portion, so that the mounting component Positioning is performed.

請求項２に係る発明は、請求項１において、前記位置決め係合部は、前記スライダの前記転動体転動溝の研削加工と同時に研削加工された凹溝であり、前記取付部品の前記被係合部は、前記凹溝の側面に係合する突起であることを特徴とする。
請求項３に係る発明は、請求項１又は２において、前記スライダは、軸方向に貫通する孔に循環スリーブが嵌め込まれて、該循環スリーブの内部が転動体通路とされたスライダ本体と、前記負荷軌道と前記転動体通路とを連通する湾曲状の方向転換路を有して、軸方向の端部に取り付けられたエンドキャップとを備え、前記転動体がころとされるとともに、前記循環スリーブが前記取付部品とされたことを特徴とする。 According to a second aspect of the present invention, in the first aspect, the positioning engagement portion is a concave groove that is ground simultaneously with the grinding of the rolling element rolling groove of the slider. The joint portion is a protrusion that engages with a side surface of the groove.
According to a third aspect of the present invention, in the first or second aspect, the slider includes a slider main body in which a circulation sleeve is fitted in a hole penetrating in the axial direction, and the inside of the circulation sleeve is a rolling element passage; An end cap attached to an end portion in an axial direction, having a curved direction changing path that communicates the load track with the rolling element passage, and the rolling element is a roller, and the circulation sleeve Is the mounting part.

請求項４に係る発明は、請求項３において、前記循環スリーブの少なくとも一方の端部に前記スライダ本体の軸方向の端面に沿って延びる突出部を設けて、該突出部に前記被係合部を設けたことを特徴とする。
請求項５に係る発明は、請求項４において、前記突出部に、前記方向転換路の一部を一体に形成したことを特徴とする。 According to a fourth aspect of the present invention, in the third aspect, at least one end portion of the circulation sleeve is provided with a projecting portion extending along an end surface in the axial direction of the slider body, and the engaged portion is provided on the projecting portion. Is provided.
The invention according to claim 5 is characterized in that, in claim 4, a part of the direction change path is formed integrally with the protrusion.

本発明によれば、転動体転動溝の研削加工と同時に研削加工された位置決め係合部に、所定の取付部品に設けた被係合部を係合させて、該取付部品の位置決めを行うので、取付部品を所望の位置に容易に位置決めすることができる。
また、位置決め係合部が高精度な転動体転動溝の研削加工と同時に研削加工されているので、位置決め係合部が精度の高い位置決め基準となって、取付部品の位置決めを正確に行うことができるとともに、位置決め係合部を別途に加工する工程が不要となって、低コスト化を図ることができる。 According to the present invention, the engaging part provided in the predetermined mounting part is engaged with the positioning engaging part ground simultaneously with the grinding of the rolling element rolling groove, thereby positioning the mounting part. Therefore, the attachment component can be easily positioned at a desired position.
In addition, since the positioning engagement part is ground at the same time as the grinding of the rolling element rolling groove with high accuracy, the positioning engagement part becomes a highly accurate positioning reference, and the mounting parts are accurately positioned. In addition, a process for separately processing the positioning engagement portion is not necessary, and the cost can be reduced.

さらに、取付部品を、転動体にころを採用した直動案内軸受装置の循環スリーブとした場合は、該循環スリーブの正確な位置決めを容易、且つ低コストで実現することができるので、ころのスムースな循環が確保されて、騒音や摩擦変動を良好に防止することができる。
さらに、循環スリーブの少なくとも一方の端部にスライダ本体の軸方向の端面に沿って延びる突出部を設けて、該突出部に被係合部を設けることで、スライダ本体の孔に循環スリーブを挿入した後に該循環スリーブを回転させるためのトルクをかけやすくすることができ、これにより、スライダ本体の孔に対する循環スリーブの位置決め作業を容易にすることができる。
さらに、前記突出部に前記方向転換路の一部を一体に形成することで、部品点数を少なくすることができ、また、転動体の循環通路の段差を減らすことができるので、転動体を滑らかに通過させることができる。 Furthermore, when the mounting part is a circulation sleeve of a linear guide bearing device using rollers as rolling elements, accurate positioning of the circulation sleeve can be realized easily and at low cost. A good circulation is ensured, and noise and friction fluctuations can be prevented well.
Furthermore, a projecting portion extending along the end surface of the slider body in the axial direction is provided at at least one end of the circulating sleeve, and the engaged portion is provided in the projecting portion, whereby the circulating sleeve is inserted into the hole of the slider body. After that, it is possible to easily apply a torque for rotating the circulation sleeve, thereby facilitating the positioning operation of the circulation sleeve with respect to the hole of the slider body.
Furthermore, by forming a part of the direction change path integrally with the protrusion, it is possible to reduce the number of parts and reduce the level difference in the circulation path of the rolling element. Can be passed through.

以下、本発明の実施の形態の一例を図を参照して説明する。図１は本発明の実施の形態の一例である直動案内軸受装置の循環スリーブを説明するための説明図、図２は図１の左側面図、図３はエンドキャップを部分的に示す図、図４はスライダ本体の軸方向の端面を部分的に示す図、図５は図１の部分拡大図である。なお、この実施の形態では、既に図６で説明した従来の直動案内軸受装置と重複又は相当する部分については、各図に同一符号を付してその説明を省略する。   Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view for explaining a circulation sleeve of a linear guide bearing device as an example of an embodiment of the present invention, FIG. 2 is a left side view of FIG. 1, and FIG. 3 is a view partially showing an end cap. 4 is a view partially showing an end face in the axial direction of the slider body, and FIG. 5 is a partially enlarged view of FIG. In this embodiment, parts that are the same as or equivalent to those of the conventional linear motion guide bearing device already described with reference to FIG.

本発明の実施の形態の一例である直動案内軸受装置は、図１及び図２に示すように、循環スリーブ（取付部品）８の一端部にスライダ本体２Ａの軸方向の端面に沿って延びる突出部２０が設けられ、該突出部２０には、方向転換路１０の内周側軌道１０ａが形成されている。循環スリーブ８は突出部２０と共に軸方向に沿って二分割されており、分割面を重ね合わせることで、循環スリーブ８の内部に転動体通路８ａが形成されるとともに、突出部２０のエンドキャップ９側を向く面に方向転換路１０の内周側軌道１０ａが形成され、この状態で循環スリーブ８がスライダ本体２Ａの孔７に挿入される。   As shown in FIGS. 1 and 2, a linear guide bearing device that is an example of an embodiment of the present invention extends to one end of a circulation sleeve (mounting part) 8 along the end surface in the axial direction of the slider body 2 </ b> A. A protrusion 20 is provided, and an inner track 10 a of the direction change path 10 is formed in the protrusion 20. The circulation sleeve 8 is divided into two along the axial direction together with the protruding portion 20, and by rolling the divided surfaces, a rolling element passage 8 a is formed inside the circulation sleeve 8 and the end cap 9 of the protruding portion 20 is formed. An inner circumferential track 10a of the direction changing path 10 is formed on the surface facing the side, and the circulation sleeve 8 is inserted into the hole 7 of the slider body 2A in this state.

また、図３に示すように、エンドキャップ９には、底部が外周側軌道１０ｂとされた凹部３０が設けられており、この凹部３０に循環スリーブ８側の突出部２０を嵌め込むことで、エンドキャップ９と突出部２０との間に方向転換路１０が形成される。
循環スリーブ８の他端部には、反対側のエンドキャップ９に設けられた穴３１（図３参照）に嵌合される突起３２が設けられており、該突起３２が前記穴３１に嵌合されることで、循環スリーブ８がより強固に固定されるようになっている。 Further, as shown in FIG. 3, the end cap 9 is provided with a recess 30 whose bottom is an outer track 10 b, and by fitting the protrusion 20 on the circulating sleeve 8 side into the recess 30, A direction change path 10 is formed between the end cap 9 and the protrusion 20.
The other end of the circulation sleeve 8 is provided with a projection 32 that is fitted into a hole 31 (see FIG. 3) provided in the opposite end cap 9, and the projection 32 is fitted into the hole 31. By doing so, the circulation sleeve 8 is more firmly fixed.

ここで、この実施の形態では、図４及び図５に示すように、スライダ本体２Ａの上下の転動体転動溝５の間に、該転動体転動溝５の研削加工と同時に研削加工された断面Ｖ字状の凹溝（位置決め係合部）４０を設けるとともに、循環スリーブ８の突出部２０の内周側軌道１０ａの反対側の面の下部に、前記凹溝４０の両側面に係合する断面円形状の突起（被係合部）４１を設けている。   Here, in this embodiment, as shown in FIGS. 4 and 5, between the upper and lower rolling element rolling grooves 5 of the slider body 2A, grinding is performed simultaneously with the grinding process of the rolling element rolling grooves 5. In addition, a concave groove (positioning engagement portion) 40 having a V-shaped cross section is provided, and a lower portion of the surface on the opposite side of the inner peripheral track 10a of the protrusion 20 of the circulation sleeve 8 is engaged with both side surfaces of the concave groove 40. A projection (engaged portion) 41 having a circular cross section is provided.

そして、スライダ本体２Ａ側の凹溝４０の両側面に、孔７に挿入された循環スリーブ８側の突起４１の外周面を係合させることにより、該循環スリーブ８の位置決め、即ち、断面長方形状の転動体通路８ａの孔７に対する位相合わせがなされる。
このように、この実施の形態では、スライダ本体２Ａの転動体転動溝５の研削加工と同時に研削加工された位置決め係合部としての凹溝４０の両側面に、循環スリーブ８側に設けた被係合部としての突起４１の外周面を係合させることにより、該循環スリーブ８の位置決めを行うことができるので、循環スリーブ８の位置決めを容易に行うことができる。 Then, by engaging the outer peripheral surface of the projection 41 on the circulating sleeve 8 side inserted into the hole 7 with both side surfaces of the concave groove 40 on the slider body 2A side, the positioning of the circulating sleeve 8, that is, the rectangular cross section is formed. The phase of the rolling element passage 8a with respect to the hole 7 is adjusted.
Thus, in this embodiment, the circulating sleeve 8 is provided on both sides of the concave groove 40 as the positioning engagement portion ground simultaneously with the grinding of the rolling element rolling groove 5 of the slider body 2A. Since the circulation sleeve 8 can be positioned by engaging the outer peripheral surface of the protrusion 41 as the engaged portion, the circulation sleeve 8 can be easily positioned.

また、位置決め係合部としての凹溝４０が転動体転動溝５の研削加工と同時に研削加工されているので、凹溝４０を別工程で加工する場合に比べて、凹溝４０の位置決め基準としての精度を高めることができる。即ち、スライダ本体２Ａの転動体転動溝５と該スライダ本体２Ａに取り付けられる循環スリーブ８との位置誤差を小さくすることができる。
これにより、循環スリーブ８の位置決めを正確に行うことができ、この結果、円筒ころ６のスムースな循環が確保されて、騒音や摩擦変動を良好に防止することができる。 Moreover, since the concave groove 40 as a positioning engagement part is ground simultaneously with the grinding of the rolling element rolling groove 5, the positioning reference of the concave groove 40 is compared with the case where the concave groove 40 is processed in a separate process. The accuracy can be increased. That is, the positional error between the rolling element rolling groove 5 of the slider body 2A and the circulation sleeve 8 attached to the slider body 2A can be reduced.
Thereby, positioning of the circulation sleeve 8 can be performed accurately, and as a result, smooth circulation of the cylindrical roller 6 is ensured, and noise and friction fluctuations can be satisfactorily prevented.

さらに、スライダ本体２Ａに凹溝４０を別途に加工する工程が不要となるため、低コスト化を図ることができる。
さらに、循環スリーブ８の一端部にスライダ本体２Ａの軸方向の端面に沿って延びる突出部２０を設けて、該突出部２０に被係合部としての突起４１を設けるているので、スライダ本体２Ａの孔７に循環スリーブ８を挿入した後に、該循環スリーブ８を回転させるためのトルクをかけやすくすることができ、これにより、スライダ本体２Ａの孔７に対する循環スリーブ８の位置決め作業を容易にすることができる。 Furthermore, since a step for separately processing the concave groove 40 in the slider body 2A is not required, the cost can be reduced.
Further, the projecting portion 20 extending along the end surface in the axial direction of the slider body 2A is provided at one end portion of the circulation sleeve 8, and the projection 41 as the engaged portion is provided on the projecting portion 20, so the slider body 2A. After inserting the circulation sleeve 8 into the hole 7, it is possible to easily apply torque for rotating the circulation sleeve 8, thereby facilitating the positioning operation of the circulation sleeve 8 with respect to the hole 7 of the slider body 2 </ b> A. be able to.

さらに、前記突出部２０に、前記方向転換路１０の内周側軌道１０ａを一体に形成しているので、部品点数を少なくすることができるとともに、円筒ころ６の循環通路の段差が減って、該円筒ころ６を滑らかに通過させることができる。
なお、本発明の転動体転動溝、案内レール、転動体、スライダ、位置決め係合部、取付部品、被係合部、孔、循環スリーブ、転動体通路、方向転換路、エンドキャップ、突出部等の構成は上記実施の形態に例示したものに限定されるものではなく、本発明の要旨を逸脱しない範囲において適宜変更可能である。 Furthermore, since the inner peripheral side track 10a of the direction change path 10 is integrally formed on the projecting portion 20, the number of parts can be reduced, and the step of the circulation path of the cylindrical roller 6 is reduced. The cylindrical roller 6 can be passed smoothly.
In addition, the rolling element rolling groove, guide rail, rolling element, slider, positioning engagement part, mounting part, engaged part, hole, circulation sleeve, rolling element path, direction change path, end cap, protrusion of the present invention Such a configuration is not limited to those exemplified in the above embodiment, and can be appropriately changed without departing from the gist of the present invention.

本発明の実施の形態の一例である直動案内軸受装置の循環スリーブを説明するための説明図である。It is explanatory drawing for demonstrating the circulation sleeve of the linear guide bearing apparatus which is an example of embodiment of this invention. 図１の左側面図である。It is a left view of FIG. エンドキャップを部分的に示す図である。It is a figure which shows an end cap partially. スライダ本体の軸方向の端面を部分的に示す図である。It is a figure which shows partially the end surface of the axial direction of a slider main body. 図１の部分拡大図である。It is the elements on larger scale of FIG. 従来の直動案内軸受装置を説明するための一部を破断した図である。It is the figure which fractured | ruptured one part for demonstrating the conventional linear motion guide bearing apparatus.

符号の説明Explanation of symbols

１ 案内レール
２ スライダ
２Ａ スライダ本体
３ 転動体転動溝（案内レール側）
５ 転動体転動溝（スライダ側）
６ 円筒ころ（転動体）
７ 孔
８ 循環スリーブ（取付部品）
８ａ 転動体通路
９ エンドキャップ
１０ 方向転換路
２０ 突出部
４０ 凹溝（位置決め係合部）
４１ 突起（被係合部） 1 Guide rail 2 Slider 2A Slider body 3 Rolling element rolling groove (guide rail side)
5 Rolling element rolling groove (slider side)
6 Cylindrical rollers (rolling elements)
7 holes 8 circulation sleeve (mounting parts)
8a Rolling element passage 9 End cap 10 Direction changing path 20 Protruding portion 40 Concave groove (positioning engagement portion)
41 Protrusion (engaged part)

Claims (5)

軸方向に延びる転動体転動溝を有する案内レールと、該案内レールの前記転動体転動溝に対向する転動体転動溝を有し、これらの両転動体転動溝間の負荷軌道に挿入された多数の転動体の転動を介して軸方向に沿って相対移動可能に前記案内レールに跨架されたスライダとを備えた直動案内軸受装置であって、
前記転動体転動溝の研削加工と同時に研削加工された位置決め係合部を設け、該位置決め係合部に、所定の取付部品に設けた被係合部を係合させて、該取付部品の位置決めを行うことを特徴とする直動案内軸受装置。 A guide rail having a rolling element rolling groove extending in the axial direction, a rolling element rolling groove facing the rolling element rolling groove of the guide rail, and a load trajectory between the both rolling element rolling grooves. A linear motion guide bearing device comprising a slider straddling the guide rail so as to be relatively movable along the axial direction through rolling of a large number of inserted rolling elements,
A positioning engaging portion ground at the same time as grinding of the rolling element rolling groove is provided, and an engaged portion provided in a predetermined mounting component is engaged with the positioning engaging portion, so that the mounting component A linear motion guide bearing device characterized by positioning. 前記位置決め係合部は、前記スライダの前記転動体転動溝の研削加工と同時に研削加工された凹溝であり、前記取付部品の前記被係合部は、前記凹溝の側面に係合する突起であることを特徴とする請求項１に記載した直動案内軸受装置。   The positioning engagement portion is a concave groove that is ground simultaneously with the grinding of the rolling element rolling groove of the slider, and the engaged portion of the mounting part engages with a side surface of the concave groove. The linear motion guide bearing device according to claim 1, wherein the linear motion guide bearing device is a protrusion. 前記スライダは、軸方向に貫通する孔に循環スリーブが嵌め込まれて、該循環スリーブの内部が転動体通路とされたスライダ本体と、前記負荷軌道と前記転動体通路とを連通する湾曲状の方向転換路を有して、軸方向の端部に取り付けられたエンドキャップとを備え、前記転動体がころとされるとともに、前記循環スリーブが前記取付部品とされたことを特徴とする請求項１又は２に記載した直動案内軸受装置。   The slider has a circulation direction in which a circulation sleeve is fitted in a hole penetrating in the axial direction, and the inside of the circulation sleeve serves as a rolling element passage, and a curved direction that communicates the load track and the rolling element passage. 2. An end cap having a conversion path and attached to an end portion in the axial direction, wherein the rolling element is a roller, and the circulation sleeve is the attachment part. Or the linear motion guide bearing apparatus described in 2. 前記循環スリーブの少なくとも一方の端部に前記スライダ本体の軸方向の端面に沿って延びる突出部を設けて、該突出部に前記被係合部を設けたことを特徴とする請求項３に記載した直動案内軸受装置。   The protrusion part extended along the end surface of the axial direction of the said slider main body was provided in the at least one edge part of the said circulation sleeve, and the said to-be-engaged part was provided in this protrusion part. Linear motion guide bearing device. 前記突出部に、前記方向転換路の一部を一体に形成したことを特徴とする請求項４に記載した直動案内軸受装置。 The linear motion guide bearing device according to claim 4, wherein a part of the direction changing path is formed integrally with the protruding portion.
JP2005309713A 2005-10-25 2005-10-25 Linear guide bearing device Pending JP2007120528A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150036953A1 (en) * 2012-03-14 2015-02-05 Thk Co., Ltd. Motion device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150036953A1 (en) * 2012-03-14 2015-02-05 Thk Co., Ltd. Motion device
US9115753B2 (en) * 2012-03-14 2015-08-25 Thk Co., Ltd. Motion device

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