JPS62188636A - Linear guide device - Google Patents
Linear guide deviceInfo
- Publication number
- JPS62188636A JPS62188636A JP61026941A JP2694186A JPS62188636A JP S62188636 A JPS62188636 A JP S62188636A JP 61026941 A JP61026941 A JP 61026941A JP 2694186 A JP2694186 A JP 2694186A JP S62188636 A JPS62188636 A JP S62188636A
- Authority
- JP
- Japan
- Prior art keywords
- bearing body
- movable body
- guide device
- linear guide
- arcuate
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 230000005489 elastic deformation Effects 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 230000002040 relaxant effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F16C29/0635—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/0063—Connecting non-slidable parts of machine tools to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
-
- 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
- F16C29/001—Bearings for parts moving only linearly adjustable for alignment or positioning
-
- 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
- F16C29/002—Elastic or yielding linear bearings or bearing supports
-
- 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
- F16C29/008—Systems with a plurality of bearings, e.g. four carriages supporting a slide on two parallel rails
-
- 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
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
この発明は直線案内装置に関するもので、更に詳細には
、ＮＣマシン等の工作機械におけるＸ・Ｙ−Ｚ軸、自動
工具交換装置、自動溶接様、射出成形例、■業用ロボッ
ト笠各種一般産！Ｉｊｌ械のスライド部において多用さ
れる直線案内装置に関する乙のである。[Detailed Description of the Invention] [Industrial Application Field 1] The present invention relates to a linear guide device, and more specifically, it relates to a linear guide device, and more specifically, to an X-YZ axis in a machine tool such as an NC machine, an automatic tool changer, and an automatic welding , injection molding examples, ■Industrial robot hats, various general products! This article relates to a linear guide device that is often used in the slide section of IJI machines.
［従来の技術］
従来、この種直線案内装置として、軸方向に沿、ってボ
ールの転走溝を右づる案内軸と、上記転走溝を転走Ｊる
ボールの無限軌道を形成する負荷ボール溝と無負荷ボー
ル溝とを有するベアリング本体と、上記ベアリング本体
に取付けられ、上記ボールを介して上記案内軸に沿って
直線往復運動を（１う可動体とで構成される直ｖ；Ａ案
内装置が知られている。[Prior Art] Conventionally, this type of linear guide device includes a guide shaft that moves the ball rolling groove to the right along the axial direction, and a load that forms an endless track for the ball that rolls in the rolling groove. A bearing body having a ball groove and a no-load ball groove, and a movable body that is attached to the bearing body and causes linear reciprocating motion along the guide shaft via the balls. Guidance devices are known.
［発明が解決しようとげる問題点］
しかしながら、従来のこの種の直線案内装置においては
、上記ベアリング本体と可動体とが直接取付はボルト等
の取イ」け手段にて固定されているため、上記案内軸自
体の狂い、案内軸を含む案内軌ｊｄ面の平面度の狂いや
レベルの誤差等の精度誤差により特にベアリング本体の
ボール部に無Ｊ！［！／Ｅ荷重がかかり、そのため、上
記可動体の直線運動を円滑に行うことができないばかり
か寿命が低下するという不都合がある。また、可動体に
取付けられるテーブルに狂いが生ずる場合にも同様にベ
アリング本体に無理な内部荷重がかかるため、直線運動
精度の低下及び寿命の低下が生じるという問題があった
。[Problems to be Solved by the Invention] However, in this type of conventional linear guide device, the bearing body and the movable body are fixed by a removal means such as a bolt instead of being directly attached. Due to accuracy errors such as the deviation of the guide shaft itself, the deviation of the flatness of the guide track jd surface including the guide shaft, and the level error, there may be no J in the ball part of the bearing body! [! /E load is applied, which is disadvantageous in that not only the linear motion of the movable body cannot be performed smoothly but also the life span is shortened. Further, if the table attached to the movable body becomes misaligned, an unreasonable internal load is similarly applied to the bearing body, resulting in a problem of decreased linear motion accuracy and shortened service life.
［問題点を解決するための手段コ
この発明は上記事情に鑑みなされたしので・、上記技術
的課題を解決Ｊるために、上記ベアリング本体と可動体
との間に変形吸収緩和用の隙間を形成すると共に、この
隙間によりベアリング本体と可動体間の相対変位を可能
にすることにより、案内軸の精度誤差等を吸収して可動
体の直線運動精度を向上させるようにしたことを特徴と
する直線案内装置を提供しようとするｂのである。[Means for Solving the Problems] This invention was made in view of the above circumstances.In order to solve the above technical problems, a gap for deformation absorption and relaxation is provided between the bearing body and the movable body. This gap allows for relative displacement between the bearing body and the movable body, thereby absorbing accuracy errors of the guide shaft and improving the linear motion accuracy of the movable body. The purpose of this paper is to provide a linear guide device that does the following.
すなわら、この発明は、軸方向に沿ってボールの転走溝
を右する案内軸と、上記転走溝を転走するボールの無限
軌道を形成する負荷ボール溝と無負荷ボール溝どを右す
るベアリング本体と、上記ベアリング本体に取イ４けら
れ、上記ボールを介して上記案内軸に沿って直線往復運
動を行う可動体とからなる直線案内装置において、上記
ベアリング本体と可動体との間に隙間を形成すべく間隔
保持座を介在すると共に、上記ベアリング本体と可動体
とを上記可動体及び間隔保持座を目通して上記ベアリン
グ本体にねじ結合する取付けボルトにて連結して、上記
案内軸の精度誤着を上記取ｆ１けボルトの弾性変形に伴
う１記ベアリング本体と可動体間の相対変位にＪ：り吸
収緩和し得るようにしだことを特徴とする直線案内装置
をも７供しようとするらのである。In other words, the present invention provides a guide shaft that guides the rolling groove of the ball along the axial direction, and a loaded ball groove and a non-loaded ball groove that form an endless track for the ball rolling in the rolling groove. In a linear guide device consisting of a right bearing body and a movable body that is attached to the bearing body and performs linear reciprocating motion along the guide shaft via the balls, the bearing body and the movable body are A spacing seat is interposed to form a gap therebetween, and the bearing body and the movable body are connected by a mounting bolt screwed to the bearing body through the movable body and the spacing seat, and the guide The present invention also provides a linear guide device characterized in that misalignment of the shaft can be absorbed and alleviated by the relative displacement between the bearing body and the movable body caused by the elastic deformation of the mounting bolt. I'm trying to do it.
この弁明において、上記間隔保持座のベアリング本体側
及び又（ま可＋Ｊ＋体側の面に円弧状凸面が形成される
と共に、上記ベアリング本体及び又は可Ｏ」体の間隔保
持Ｐｊ５どの当接面には上記円弧状凸面と１８沃づる円
弧状凹面が形成され、この際、円弧状凸面は球面状凸面
あるい（、Ｌ円弧状凸条面にて形成され、また、円弧状
凹面しこれに対応して球面状凹面、あるいは、円弧状凹
条面にて形成される。In this defense, an arcuate convex surface is formed on the surface of the bearing body side and the (maka+J+ body side) of the spacing seat, and the abutment surface of the spacing Pj5 of the bearing body and/or the spacing body is An arcuate concave surface is formed which is 18 degrees parallel to the arcuate convex surface, and in this case, the arcuate convex surface is formed by a spherical convex surface or an L arcuate convex surface, and an arcuate concave surface corresponding to the convex surface is formed. It is formed with a spherical concave surface or an arcuate concave surface.
また、ベアリング本体側及び又は可動体側に形成される
円弧状凸面あるいは球面状凸面は直接ベアリング本体、
可動体に一体に形成してもよいが、ワッシャ等の別部材
にて形成ずれば加工上好ましい。In addition, the arcuate convex surface or spherical convex surface formed on the bearing body side and/or the movable body side can be directly connected to the bearing body,
Although it may be formed integrally with the movable body, it is preferable for processing to form it as a separate member such as a washer.
［作用コ 上記技術的手段は次のように作用Ｊ゛る。[Action Co. The above technical means works as follows.
ベアリング本体と可動体との間に変形吸収緩和用の隙間
が形成されると共に、取（−Ｊ ｉＪポル１〜＆よ弾ｆ
ｆ変形を有するため、案内軸の１？＋瓜誤差等によって
ベアリング本体の内部にた［ １１１１な荷φが生じた
時、上記ボルトの弾性変形に汁〕ベアリング本体と可動
体との相対変位（Ｑ体向には間隔保持座の円弧状凸面と
ベアリング本体及び又（よ可動体の円弧状凹面どの１習
接作用にＪ、る変位）により、案内軸の精度誤差等がベ
アリング本体と可動体間にて吸収緩和される。A gap for deformation absorption and relaxation is formed between the bearing body and the movable body, and the
1 of the guide shaft due to f deformation. + Relative displacement between the bearing body and the movable body (when a load φ of 1111 is generated, the elastic deformation of the bolt occurs) inside the bearing body due to misalignment, etc. Due to the tangential action of the convex surface, the bearing body, and the circular concave surface of the movable body, errors in accuracy of the guide shaft are absorbed and alleviated between the bearing body and the movable body.
［実施例１
以下にこの発明の実施例を添附図面に１．ｔいて訂細に
説明する。[Example 1] Examples of the present invention are shown below in the accompanying drawings. I will explain it in detail later.
第１図はこの発明の直線案内装置の一例を示１概略斜視
図で、この発明の直線案内装置は、軸方向に沿って後述
するボール４の転走溝１２を有する案内＠１と、第６図
に示づように、転走溝１ａを転走づるボール１の無限軌
道を形成する負荷ボール満２２と無負荷ボール溝２１と
を右づるベアリング本体２と、このベアリング本体２に
取（Ｊけられ、ボール４を介して案内軸１に沿って直線
往復運動を行う可動１木３とで主要部が構成され−でい
る。FIG. 1 is a schematic perspective view showing an example of the linear guide device of the present invention. As shown in Fig. 6, the loaded ball groove 22 and the unloaded ball groove 21 forming the endless track of the ball 1 rolling in the rolling groove 1a are attached to the right-handed bearing body 2 and the bearing body 2 ( The main part is composed of a movable tree 3 which is reciprocated in a straight line along a guide shaft 1 via a ball 4.
Ｆ記ベアリング本体２は、第２図ないし第４図に示すよ
うに、下面にＩ’、４ｇ４２４を設けたほぼコ形状に形
成されて案内軸１の上部に摺動可能に魔合さるようにな
っており、更に、上記凹溝２４の左右内面には案内軸１
の上部両側に形成されたボール４の転走溝であるｎｇＪ
ボール転走溝１ａ、 １ａにそれぞれ相対向して断面円
弧状の２状の負荷ボール満２２゜２２が形成され、また
、各負荷ボール溝２２の衷面倒には無負荷ボール満２１
が案内軸方向に沿って穿設されている（第６図参照）。As shown in FIGS. 2 to 4, the bearing body 2 marked F is formed into a substantially U-shape with I' and 4g424 provided on the lower surface so that it can be slidably fitted onto the upper part of the guide shaft 1. Furthermore, a guide shaft 1 is provided on the left and right inner surfaces of the groove 24.
ngJ, which is the rolling groove for the ball 4 formed on both sides of the upper part of the
Two loaded balls 22° 22 each having an arcuate cross section are formed facing each other in the ball rolling grooves 1a, 1a, and a non-load ball 21 is formed on the side surface of each loaded ball groove 22.
is bored along the guide shaft direction (see Fig. 6).
そして、上記負荷ボール溝２２には、多数のボール４が
それぞれボール保持器５をによって整列した状態で配設
されている（第６図及び第７図参照）。また、上記ベア
リング本体２の摺動力向の両端面には、上記負荷ボール
溝２２と無負荷ボール溝２１との聞でボール４を案内す
る案内溝６ａを右する一対の側Ｗ６が取ｆ４りられてい
る。この場合、上記側谷６は硬質の合成樹脂等にて形成
され、そして、ベアリング本体２の前、後端面にボルト
６ｂによって取付けられている。なお、符号７は側蓋６
に取付けられたグリースニップルである。A large number of balls 4 are arranged in the load ball groove 22 with their respective ball holders 5 aligned (see FIGS. 6 and 7). Further, on both end faces of the bearing body 2 in the sliding direction, a pair of sides W6 are provided on the right side of a guide groove 6a that guides the ball 4 between the loaded ball groove 22 and the unloaded ball groove 21. It is being In this case, the side valleys 6 are made of hard synthetic resin or the like, and are attached to the front and rear end surfaces of the bearing body 2 with bolts 6b. In addition, the code 7 is the side cover 6.
This is a grease nipple attached to the
一方、上記ベアリング本体２の上面と可動ｆＡ ３の下
面との間には両各間に変形吸収緩和用の隙間８を積極的
に形成すべく間隔保持座１０が介在されており、この間
隔保持座１０に穿設されたＱ通孔１１及び上記可動体３
に穿設された貫通孔３ａを貫通りる取付はポルｌ−９を
ベアリング本体２の上部に設けられたねじ孔２３にねじ
結合づることによって、ベアリング本体２と可動体３と
が隙間８を保持した状態で連結されている。この場合、
上記間隔保持座１０は、円盤状基部１２と、この円盤状
基部１２の下面に突設される球面状凸面１３と、円盤状
基部１２と球面状凸面１３の中央部を貫通ずる日通孔１
１とで構成されており（第５図参照）、ベアリング本体
２の間隔保持座１０の当接面には上記球面状凸面１３と
摺接する球面状凹面１４が形成され、球面状凸面１３と
球面状凹面１４とが摺接した状態で取付はボルト９によ
りベアリング本体２と可動体３とが連結されている。な
おこの場合、上記隙間８の１法は取付はボルト９の有す
る弾性変形の許容範囲内において設定される。したがっ
て、例えば上記案内軸１の精Ｉ良誤差等によってベアリ
ング本体２が外部から荷Ｃ［を受【）ると、その荷車に
よって取付けボルト９が弾性変形すると共に、ベアリン
グ本体２と可動体３との間の相対変位にＪ：す、上記外
部からの荷車を吸収緩和づることができ、案内軸方向及
びこの＠方向に対して直交する方向等いかなる方向の精
度誤差を吸収緩和することができ、ベアリング本体２及
び可動（Ａ３の直線運動精度の向上を図ることができる
。On the other hand, a spacing seat 10 is interposed between the upper surface of the bearing body 2 and the lower surface of the movable fA 3 in order to actively form a gap 8 between the two for absorbing and relaxing deformation, and this spacing is maintained. Q through hole 11 bored in seat 10 and the movable body 3
For installation through the through hole 3a drilled in the bearing body 2, by screwing the pole l-9 into the screw hole 23 provided in the upper part of the bearing body 2, the bearing body 2 and the movable body 3 are connected with the gap 8. It is connected in a retained state. in this case,
The spacer 10 includes a disc-shaped base 12, a spherical convex surface 13 protruding from the lower surface of the disc-shaped base 12, and a day hole 1 passing through the center of the disc-shaped base 12 and the spherical convex surface 13.
1 (see Fig. 5), a spherical concave surface 14 is formed on the abutment surface of the spacing seat 10 of the bearing body 2 and is in sliding contact with the spherical convex surface 13, and the spherical convex surface 13 and the spherical surface The bearing body 2 and the movable body 3 are connected by bolts 9 in a state in which the bearing body 2 and the movable body 3 are in sliding contact with the shaped concave surface 14. In this case, the above-mentioned gap 8 is installed within the allowable range of elastic deformation of the bolt 9. Therefore, for example, when the bearing body 2 receives a load C from the outside due to an error in precision of the guide shaft 1, the mounting bolt 9 is elastically deformed by the cart, and the bearing body 2 and the movable body 3 are The relative displacement between It is possible to improve the linear motion accuracy of the bearing body 2 and the movable member (A3).
なお、上記案内軸１は適宜間隔をＪｊいて穿設された取
付は孔（図示せず）を貫通４る固定ボルト３０をもって
ベッド等の固定基部３１に固定されている。The guide shaft 1 is fixed to a fixed base 31 of a bed or the like using fixing bolts 30 that pass through holes (not shown), which are drilled at appropriate intervals.
第８図ないし第１１図はこの発明の第二実施例を示す乙
ので、案内軸方向と直交する方向の精度誤差等を吸収緩
和するようにした場合である。寸なわら、矩形状基部１
５の下面に円弧状凸条面１６を形成したいわゆるかまぼ
こ状の１！ＩＶＡ保持座１０を案内軸１と平行にした状
態にして上記ベアリング本体２と可動体３との間に介在
さＵて取（−１ＬＪボルト９にて連結した場合である。8 to 11 show a second embodiment of the present invention, in which accuracy errors in a direction orthogonal to the guide shaft direction are absorbed and alleviated. Small, rectangular base 1
5 has a so-called semicylindrical shape with an arcuate convex surface 16 formed on the lower surface! This is a case in which the IVA holding seat 10 is placed parallel to the guide shaft 1 and is interposed between the bearing body 2 and the movable body 3 and connected by a U lever (-1LJ bolt 9).
この場合、上記ベアリング本体２の上面に間隔保持座１
０の円弧状凸条面１６と摺接する円弧状四条面１７が形
成されている。In this case, the spacer 1 is placed on the upper surface of the bearing body 2.
A four-striped arc surface 17 is formed that slides into contact with the arc-shaped convex surface 16 of 0.
したがって、間隔保１！１座１０ど円弧状凹条面１７ど
のＩＳ接作用によって案内軸１）向と直交りる方向の精
１１１を誤差を吸収π相することができる。なＪｊこの
場合、第１１図に示すＪ：うに、上記Ｇ１荷ボール溝２
２の端部側に比較的大きくクラウニング２５を形成Ｊる
ことによって案内軸Ｊｊ向の精１宴誤ηを吸収緩和する
ことがでさる。Therefore, by the IS contact action of the spacer 1!1 seat 10 and the arcuate concave surface 17, the precision 111 in the direction orthogonal to the guide shaft 1) can be shifted to the π phase to absorb errors. Jj In this case, J as shown in FIG.
By forming a relatively large crowning 25 on the end side of the guide shaft 2, it is possible to absorb and alleviate the error η in the direction of the guide axis Jj.
第１２図ないし第１４図はこの発明の第三実施例を示す
しので、案内軸方向の端境誤差を吸収緩和ＪるＪ、うに
したＪＡ合である。りなわ１つ、上記第二実施例と同様
にかまぼこ状に形成された間隔保持座１０を案内軸１と
直交づる状態にして上記ベアリング本体２と可動体３と
の間に介在させて取付はボルト９により連結した場合で
ある。この場合、上記ベアリング本体２の上面に間隔保
持座１０の円弧状凸条面１６と摺接する円弧状凹条面１
７が形成されている。したがって、間隔保持座１０の円
弧状凸条面１６と円弧状凹条面１７との贋接作用によっ
て案内軸方向の精度誤差を吸収緩和することができる。12 to 14 show a third embodiment of the present invention, which is a JA case in which edge errors in the direction of the guide shaft are absorbed and alleviated. As in the second embodiment, the distance retaining seat 10, which is formed in a semicylindrical shape, is placed perpendicularly to the guide shaft 1 and interposed between the bearing main body 2 and the movable body 3. This is the case where they are connected by bolts 9. In this case, an arcuate grooved surface 1 slidingly contacts the arcuate convex surface 16 of the spacer 10 on the upper surface of the bearing main body 2.
7 is formed. Therefore, the accuracy error in the direction of the guide shaft can be absorbed and alleviated by the contact action between the arcuate convex stripe surface 16 and the arcuate concave stripe surface 17 of the spacer 10.
なおこの場合、案内軸方向と直交する方向の精度誤差は
、案内’Ｍｌ １どベアリング本体２との間に介在され
るボール４が４列のアンギュラコンタクト外接となり、
自由度を右する自ａ１調整構造となるため、案内軸１に
対する直交方向の粘度誤差は吸収緩和される（第１４図
参照）。In this case, the accuracy error in the direction perpendicular to the guide axis direction is that the balls 4 interposed between the guide 'M1 and the bearing body 2 are circumscribed by four rows of angular contacts,
Since the self-a1 adjustment structure has a right degree of freedom, the viscosity error in the direction perpendicular to the guide shaft 1 is absorbed and alleviated (see FIG. 14).
、Ｌ記第二及び第三実／Ｉｌｌにおいてその他の部分は
上記第一実施例と同じであるので、同一部分には同一符
号を付してその説明は省略７る。, L, the other parts in the second and third embodiments/Ill are the same as in the first embodiment, so the same parts are given the same reference numerals and their explanation will be omitted.
上記各実施例ではいずれも間隔保持座１０に設けられた
球面状凸面１３又は円弧状凸条面１６とＩ８接する球面
状四面１４又は円弧状四条面１７をベアリング本体２の
上面に形成した場合について説明したが、必ずしもベア
リング本体２にのみ球面状凹面１４又は円弧状凹条面１
７を形成したものに限ら、ず、間隔保持座１０の球面状
凸面１３又は円弧状凸条面１６を上向きにし、上記可動
体３の下面に球面状凹面１４又は円弧状凹条面１７を形
成したもの（第１５図参照）、あるいは、間隔保持座１
０の上下面に球面状凸面１３又は円弧状凸条面１６を形
成し、ベアリング本体２の上面及び可りＪ体３の下面の
両方にそれぞれ球面状凸面１３又は円弧状凸条面１６と
ぽ接する球面状凹面１４又は円弧状四条面１７を形成し
たらのであってもよい。このように上下面に）習接部を
設りることにより、より一層精度誤差の吸収緩和を円滑
に行うことができる。In each of the above embodiments, four spherical surfaces 14 or four arcuate surfaces 17 that are in contact with the spherical convex surface 13 or arcuate convex surface 16 provided on the spacing seat 10 at I8 are formed on the upper surface of the bearing body 2. As explained above, the spherical concave surface 14 or the arcuate concave surface 1 is not necessarily provided only on the bearing body 2.
7, the spherical convex surface 13 or the arcuate convex stripe surface 16 of the spacer 10 faces upward, and the spherical concave surface 14 or the arcuate concave stripe surface 17 is formed on the lower surface of the movable body 3. (see Figure 15), or spacer 1
A spherical convex surface 13 or an arcuate convex surface 16 is formed on the upper and lower surfaces of the bearing body 2, and a spherical convex surface 13 or an arcuate convex surface 16 is formed on both the upper surface of the bearing body 2 and the lower surface of the flexible J body 3, respectively. It is also possible to form a concave spherical surface 14 or a four-striped arc surface 17 in contact with each other. By providing the contact portions on the upper and lower surfaces in this way, accuracy errors can be absorbed and alleviated even more smoothly.
また、上記実施例はベアリング本体２の上面及び又は可
動体３の下面に球面状凹面１４又は円弧状凹条面１７を
形成した場合について説明したが、必ずししこの構造に
する必盟はなく、球面状凹面１４又は円弧状四条面１７
を形成したワッシャ１９をベアリング本体２の上面及び
又は可動体３の下面に配設してもよく、このようにワッ
シャ１９を使用することににす、ベアリング本体２自体
あるいは可動体３自体に何等加工を施ずことなく簡単に
直線案内装置を組立てることができる（第１６図及び第
１７図参照）。Further, in the above embodiment, the case where the spherical concave surface 14 or the arcuate concave surface 17 is formed on the upper surface of the bearing body 2 and/or the lower surface of the movable body 3 has been described, but this structure is not necessarily required. , spherical concave surface 14 or arcuate four-striped surface 17
A washer 19 having a shape formed thereon may be disposed on the upper surface of the bearing body 2 and/or on the lower surface of the movable body 3. If the washer 19 is used in this way, there is no need to attach anything to the bearing body 2 or the movable body 3 itself. The linear guide device can be easily assembled without any machining (see FIGS. 16 and 17).
し発明の効果］
以上に説明したにうに、この発明の直線案内装置によれ
ば、ベアリング本体と可動体との間に隙間を形成Ｊべく
間隔保持座を介在さＵると共に、上記ベアリング本体と
可動体とを弾性を右づる取付リボルトにて連結してなる
ため、以下のような効果が１「Ｉられる。[Effects of the Invention] As described above, according to the linear guide device of the present invention, a spacer is interposed between the bearing body and the movable body to form a gap between the bearing body and the movable body. Since it is connected to the movable body using an elastic mounting bolt, the following effects can be achieved.
１）間隔保１．Ｉｌ座によりベアリング本体と可動体と
の間に変形吸収縁組用の隙間が形成され、かつ、取（＝
Ｊリボル１〜が弾性を石りるため案内軸の精度誤差（軸
方向及び又は軸方向に対して交差する方向の精Ｉ１１′
誤差）を吸収緩和して、可動体の直線運動ｖＪ度を向上
さヒることができる。1) Spacing 1. The Il seat forms a gap for deformation absorption between the bearing body and the movable body, and
Since the J revolvers 1~ have less elasticity, the accuracy error of the guide shaft (the accuracy in the axial direction and/or in the direction crossing the axial direction)
By absorbing and alleviating errors (errors), it is possible to improve the linear motion vJ of the movable body.
２）上記誤差の吸収緩和により装置の組立て時あるいは
使用時に生じる無理な内部荷重を防止することができる
ため、可動体の直線運動を高精度にしかも円滑に行うこ
とができ、スＴ命の増大が図れる。2) By absorbing and mitigating the errors mentioned above, it is possible to prevent unreasonable internal loads that occur when assembling or using the device, so the linear motion of the movable body can be performed with high precision and smoothly, increasing the life span. can be achieved.
３）ベアリング本体と可動体との間に間隔保持座を介在
し、これらを取イ４けボルトにて連結するのみでＪ、い
ため、取イ１け作業が簡単な上、取（ｄりに当たって高
精度が要求されない。3) By interposing a spacing seat between the bearing body and the movable body and connecting them with 4 bolts, the removal work is simple, and the removal work is easy. High precision is not required.
４）構成部材が少なく、低床に製作できる。4) It has fewer components and can be manufactured with a low floor.
第１図はこの発明の第一実施例のを示す概略斜視図、第
２図は第一実施例にＪハノるベアリング本体を示す平面
図、第３図は第一実施例のべｊ７リング本体の要部断面
図、第４図は第３図のＩＶ −ＩＶ断断面同図第５図は
第一実施例にＪｌノる間隔保１．′ｉ座の斜視図、第６
図Fig. 1 is a schematic perspective view showing the first embodiment of the present invention, Fig. 2 is a plan view showing the bearing body of the first embodiment, and Fig. 3 is the J7 ring main body of the first embodiment. FIG. 4 is a cross-sectional view of the main part of FIG. 3, and FIG. 5 is a cross-sectional view of the main part of FIG. Perspective view of 'i', No. 6
figure
【、上第４図のＶ［−Ｖｌ線に沿う断面図、第７図は
第６図の■矢祝図、第８図は第二実施例にお１づるベア
リング本体の平面図、第９図は第８図のＩＸ −ＩＸ断
面図、第１０図は第二実施例にｄ３りる間隔保１、ｒ座
の斜視図、第１１図は第二実施例にＪハノるベアリング
本体の断面図、第１２図は第三実施例におけるベアリン
グ本体を示す平面図、第１３図は第三実施例における要
部断面図、第１４図は第１１図のＸＩＶ−ＸＩＶ断面図
、第１５図ないし第１７図はこの発明の第四実施例ない
し第六実施例を示１要部断面図である。
符号説明
（１）・・・案内軸
（１ａ）・・・転走溝
（２）・・・ベアリング本体
（３）・・・可動体
（／Ｉ）・・・ボール
（８）・・・隙間
（９）・・・取付けボルト
（１１）・・・負通孔
（１３）・・・球面状凸面
（１４）・・・球面状凹面
（１Ｇ）・・・円弧状凸条面
（１７）・・・円弧状凸条面
（１９）・・・ワッシャ
（２１）・・・無負荷ボール満
（２２）・・・負荷ボール満
特 許 出 願 人 寺 町
待伏 理 人 弁理士 成 瀬
勝 夫 （他２名）第２図
２２：１荷、Ｔ、−Ｖ五
第５図
第７図
第８図
第１６図 １９：’７７ワ。
１】
第１７図
ａ[, A sectional view taken along the line V[-Vl in Fig. 4 above, Fig. 7 a cross-sectional view taken along the line V[-Vl in Fig. 6, The figure is a sectional view taken along line IX-IX in Fig. 8, Fig. 10 is a perspective view of the spacing 1 and r seat in the second embodiment, and Fig. 11 is a cross-section of the bearing body in the second embodiment. 12 is a plan view showing the bearing main body in the third embodiment, FIG. 13 is a sectional view of main parts in the third embodiment, FIG. 14 is a sectional view taken along line XIV-XIV in FIG. 11, and FIGS. FIG. 17 is a sectional view of a main part of the fourth to sixth embodiments of the present invention. Description of symbols (1)... Guide shaft (1a)... Rolling groove (2)... Bearing body (3)... Movable body (/I)... Ball (8)... Gap (9)... Mounting bolt (11)... Negative through hole (13)... Spherical convex surface (14)... Spherical concave surface (1G)... Arc-shaped convex surface (17)... ...Circular convex surface (19) ...Washer (21) ...No load ball (22) ...Load ball full patent application person Teramachi
Patent Attorney Naruse
Katsuo (and 2 others) Figure 2 22: 1 cargo, T, -V 5 Figure 5 Figure 7 Figure 8 Figure 16 19: '77 Wa. 1] Figure 17a
Claims (5)
、上記転走溝を転走するボールの無限軌道を形成する負
荷ボール溝と無負荷ボール溝とを有するベアリング本体
と、上記ベアリング本体に取付けられ、上記ボールを介
して上記案内軸に沿って直線往復運動を行う可動体とか
らなる直線案内装置において、上記ベアリング本体と可
動体との間に隙間を形成すべく間隔保持座を介在すると
共に、上記ベアリング本体と可動体とを上記可動体及び
間隔保持座を貫通して上記ベアリング本体にねじ結合す
る取付けボルトにて連結して、上記案内軸の精度誤差を
上記取付けボルトの弾性変形に伴う上記ベアリング本体
と可動体間の相対変位により吸収緩和し得るようにした
ことを特徴とする直線案内装置。(1) A bearing body having a guide shaft having a rolling groove for balls along the axial direction, a loaded ball groove and a non-loaded ball groove forming an endless track for balls rolling in the rolling groove, and the above-mentioned bearing body. In a linear guide device comprising a movable body attached to a bearing body and performing linear reciprocating motion along the guide shaft via the balls, a spacing seat is provided to form a gap between the bearing body and the movable body. At the same time, the bearing body and the movable body are connected by a mounting bolt that passes through the movable body and the spacer and is screwed to the bearing body, so that the accuracy error of the guide shaft is reduced by the mounting bolt. A linear guide device characterized in that the linear guide device is capable of absorbing and relaxing the relative displacement between the bearing main body and the movable body due to elastic deformation.
の面に円弧状凸面を形成すると共に、上記ベアリング本
体及び又は可動体の間隔保持座との当接面には上記円弧
状凸面と摺接する円弧状凹面を形成したことを特徴とす
る特許請求の範囲第１項記載の直線案内装置。(2) An arcuate convex surface is formed on the bearing body side and/or movable body side surface of the spacing seat, and the abutting surface of the bearing body and/or the movable body with the spacing seat is in sliding contact with the arcuate convex surface. The linear guide device according to claim 1, characterized in that an arcuate concave surface is formed.
弧状凹面を球面状凹面にて形成したことを特徴する特許
請求の範囲第２項記載の直線案内装置。(3) The linear guide device according to claim 2, wherein the arc-shaped convex surface is formed by a spherical convex surface, and the arc-shaped concave surface is formed by a spherical concave surface.
円弧状凹面を円弧状凹条面にて形成したことを特徴とす
る特許請求の範囲第２項記載の直線案内装置。(4) Forming the arc-shaped convex surface with the arc-shaped convex stripes,
The linear guide device according to claim 2, wherein the arcuate concave surface is formed by an arcuate grooved surface.
をワッシャにて形成したことを特徴とする特許請求の範
囲第２項ないし第４項のいずれかに記載の直線案内装置
。(5) The linear guide device according to any one of claims 2 to 4, wherein the arcuate concave surface on the bearing body side and/or on the movable body side is formed by a washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61026941A JPS62188636A (en) | 1986-02-12 | 1986-02-12 | Linear guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61026941A JPS62188636A (en) | 1986-02-12 | 1986-02-12 | Linear guide device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62188636A true JPS62188636A (en) | 1987-08-18 |
| JPH0416296B2 JPH0416296B2 (en) | 1992-03-23 |
Family
ID=12207175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61026941A Granted JPS62188636A (en) | 1986-02-12 | 1986-02-12 | Linear guide device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62188636A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02229914A (en) * | 1989-03-01 | 1990-09-12 | T Echi K Kk | Bearing for linear sliding and its mounting method |
| JPH0462414U (en) * | 1990-09-29 | 1992-05-28 | ||
| JPH0524246U (en) * | 1991-09-06 | 1993-03-30 | 株式会社アマダメトレツクス | Linear bearing device |
| JPH05220638A (en) * | 1992-02-05 | 1993-08-31 | T H K Kk | Linear motion guide device and table device employing it |
| JPH0610947A (en) * | 1992-06-23 | 1994-01-21 | Takeshi Kuroda | Sliding support device |
| ES2245199A1 (en) * | 2002-11-29 | 2005-12-16 | Biesse S.P.A. | Cutting machine for panels used in making furniture has carriage on two fixed girders along which it can move |
| US7364124B2 (en) | 2002-10-17 | 2008-04-29 | Furukawa Co., Ltd. | Elevator device for television camera |
| JP2008202639A (en) * | 2007-02-16 | 2008-09-04 | Hosei Brake Ind Ltd | Shoe hold-down device |
| JP2008202646A (en) * | 2007-02-17 | 2008-09-04 | Hosei Brake Ind Ltd | Shoe hold-down device |
| WO2009107602A1 (en) * | 2008-02-28 | 2009-09-03 | Thk株式会社 | Motion device |
| JP2010052058A (en) * | 2008-08-26 | 2010-03-11 | Thk Co Ltd | Motion guide device |
| DE102011076327A1 (en) * | 2011-05-24 | 2012-11-29 | Aktiebolaget Skf | Profile rail car with a compensation component |
| DE102012012530A1 (en) * | 2012-06-26 | 2014-01-02 | Konecranes Plc | Linear guide of at least two profiles |
| WO2018042897A1 (en) * | 2016-08-30 | 2018-03-08 | 株式会社日立ハイテクノロジーズ | Stage device and charged particle beam device |
| KR102096704B1 (en) * | 2018-01-03 | 2020-04-03 | 치프텍 프레시젼 씨오 엘티디 | Miniature slider structure and linear slide |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59128336U (en) * | 1983-02-14 | 1984-08-29 | 豊田工機株式会社 | Guidance device |
| JPS6025628A (en) * | 1983-07-20 | 1985-02-08 | Hiroshi Teramachi | Table assembly for straight sliding |
-
1986
- 1986-02-12 JP JP61026941A patent/JPS62188636A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59128336U (en) * | 1983-02-14 | 1984-08-29 | 豊田工機株式会社 | Guidance device |
| JPS6025628A (en) * | 1983-07-20 | 1985-02-08 | Hiroshi Teramachi | Table assembly for straight sliding |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02229914A (en) * | 1989-03-01 | 1990-09-12 | T Echi K Kk | Bearing for linear sliding and its mounting method |
| JPH0462414U (en) * | 1990-09-29 | 1992-05-28 | ||
| JPH0524246U (en) * | 1991-09-06 | 1993-03-30 | 株式会社アマダメトレツクス | Linear bearing device |
| JPH05220638A (en) * | 1992-02-05 | 1993-08-31 | T H K Kk | Linear motion guide device and table device employing it |
| JPH0610947A (en) * | 1992-06-23 | 1994-01-21 | Takeshi Kuroda | Sliding support device |
| US7364124B2 (en) | 2002-10-17 | 2008-04-29 | Furukawa Co., Ltd. | Elevator device for television camera |
| ES2245199A1 (en) * | 2002-11-29 | 2005-12-16 | Biesse S.P.A. | Cutting machine for panels used in making furniture has carriage on two fixed girders along which it can move |
| JP2008202639A (en) * | 2007-02-16 | 2008-09-04 | Hosei Brake Ind Ltd | Shoe hold-down device |
| JP2008202646A (en) * | 2007-02-17 | 2008-09-04 | Hosei Brake Ind Ltd | Shoe hold-down device |
| WO2009107602A1 (en) * | 2008-02-28 | 2009-09-03 | Thk株式会社 | Motion device |
| JP5324559B2 (en) * | 2008-02-28 | 2013-10-23 | Ｔｈｋ株式会社 | Exercise equipment |
| JP2010052058A (en) * | 2008-08-26 | 2010-03-11 | Thk Co Ltd | Motion guide device |
| DE102011076327A1 (en) * | 2011-05-24 | 2012-11-29 | Aktiebolaget Skf | Profile rail car with a compensation component |
| DE102012012530A1 (en) * | 2012-06-26 | 2014-01-02 | Konecranes Plc | Linear guide of at least two profiles |
| US9790989B2 (en) | 2012-06-26 | 2017-10-17 | Konecranes Plc | Linear guide comprising at least two profile-members |
| WO2018042897A1 (en) * | 2016-08-30 | 2018-03-08 | 株式会社日立ハイテクノロジーズ | Stage device and charged particle beam device |
| US10770259B2 (en) | 2016-08-30 | 2020-09-08 | Hitachi High-Tech Corporation | Stage device and charged particle beam device |
| KR102096704B1 (en) * | 2018-01-03 | 2020-04-03 | 치프텍 프레시젼 씨오 엘티디 | Miniature slider structure and linear slide |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0416296B2 (en) | 1992-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |