JPS6067065A - Limitless slidable bearing unit which uses simultaneous grinding type bearing body - Google Patents
Limitless slidable bearing unit which uses simultaneous grinding type bearing bodyInfo
- Publication number
- JPS6067065A JPS6067065A JP58171265A JP17126583A JPS6067065A JP S6067065 A JPS6067065 A JP S6067065A JP 58171265 A JP58171265 A JP 58171265A JP 17126583 A JP17126583 A JP 17126583A JP S6067065 A JPS6067065 A JP S6067065A
- Authority
- JP
- Japan
- Prior art keywords
- ball
- bearing body
- groove
- bearing
- ball rolling
- 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.)
- Pending
Links
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
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
-
- 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
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators
-
- 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
- F16C29/08—Arrangements for covering or protecting the ways
- F16C29/084—Arrangements for covering or protecting the ways fixed to the carriage or bearing body movable along the guide rail or track
- F16C29/088—Seals extending in the longitudinal direction of the carriage or bearing body
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は工作機械のテーブルザドルやマニシングセンタ
ー等のスライド面、あるいは重月−物を支承して往復す
る搬送装置のスライド面に使用する同時研削型ベアリン
グ本体を用いた無限摺動ベアリングユニットに関する。[Detailed Description of the Invention] The present invention uses a simultaneous grinding type bearing body used for the sliding surface of a table saddle or machining center of a machine tool, or the sliding surface of a conveyor device that supports heavy objects and reciprocates. Regarding the infinite sliding bearing unit.
従来の無限摺動ベアリングユニットにおいてｔＪｌ、第
１６図に示すように、ベアリング本体１０１の中窒凹所
１０２の左右に、ブローチ加工によって、一対の凹溝１
０５，１０６を形成すると共に該各回溝１０５．１０６
の両側に２条のボール転走面１０７．１０８，１０９，
１１０を形成し、その後各ホール転走面１０７ 、１０
８ 、１０９ 、１１０の焼入れをしてベアリング本体
１０１ ’ｅ？作していた。然るに上記した焼入れを行
う際、加熱の影響により？−ル転走面１０７．１０８．
１０９ 。In the conventional infinite sliding bearing unit, as shown in FIG.
05, 106 and the respective grooves 105, 106.
Two ball rolling surfaces 107, 108, 109 on both sides of
110, and then each hole rolling surface 107, 10
8, 109, and 110 and harden the bearing body 101'e? was making However, when performing the above-mentioned quenching, is it due to the influence of heating? -Role rolling surface 107.108.
109.
１１０に歪を生じていたことから、砥石車を用いて該ボ
ール転走面の研削仕上げを行い、その寸法精度を出す方
法を採るのが一般的であった。Since the ball rolling surface 110 was distorted, it was common practice to use a grinding wheel to finish grinding the ball rolling surface to improve its dimensional accuracy.
然しなから、従来の研削仕上げは、同図に示すように、
水平回転の砥石車Ｇによって左右スカート部１０３．１
０４の上方細雨ボール転走面１０８゜１１０を順次研削
し、次いで垂直回転の砥石車Ｇにより左右スカート部１
０３．１０４の下方側両日？−ル転走面１０７，１０９
ｆｒ順次研削していた。However, the conventional grinding finish, as shown in the same figure,
The left and right skirt parts 103.1 are cut by the horizontally rotating grinding wheel G.
The upper fine rain ball rolling surface 108°110 of 04 is sequentially ground, and then the left and right skirt portions 1 are ground with a vertically rotating grinding wheel G.
Both days on the lower side of 03.104? -Role rolling surface 107, 109
fr was being ground sequentially.
しかし斯かる従来技術によると、研削作業に４工程を必
要として量産に不向きである。また４条のボール転走面
をそれぞれ個別に研削することから、各々のボール転走
面についての寸法出しを均一に精度よく行うことが困難
であり、従って寸法出しを精度よく行うためには研削作
業に長時間を要し、コスト高要因の一つとなっていた。However, such conventional technology requires four steps for grinding, making it unsuitable for mass production. In addition, since each of the four ball raceway surfaces is individually ground, it is difficult to uniformly and accurately measure the dimensions of each ball raceway surface. The work required a long time and was one of the factors contributing to high costs.
一方寸法出しが不十分な場合には、例えば砥石車による
切込み量が多過ぎる場合には、このペアリン゛グ本体と
軌道台の対応するボール転走面間でボール奮循環移動さ
せる際、両者間にがたを生じ、これがトルク伝達の不良
、騒音の発生及びベアリング本体の煩き等積々の問題音
生じていた。これに反して砥石車による切込み屋が不足
している場合には、ベアリング本体と軌道台の対応する
ボール転走面間にボールを挿入するのが困）））ｔとな
るぽかりか、ボールの挿入を終えても摺動抵抗の増加に
よってボールの動きが硬くなり、ベアリングユニットの
円滑な走行を図り得ないという別の問題点を生じていた
。On the other hand, if the dimensioning is insufficient, for example if the amount of cut by the grinding wheel is too large, when the balls are actively circulated between the corresponding ball rolling surfaces of the pairing body and the track, the This caused a number of problems such as poor torque transmission, noise, and trouble in the bearing body. On the other hand, if the grinding wheel is insufficient, it is difficult to insert the ball between the corresponding ball rolling surface of the bearing body and the track base. Even after insertion, the movement of the ball becomes stiff due to increased sliding resistance, creating another problem in that the bearing unit cannot run smoothly.
そこで本発明は従来技術のＪ（１１かる問題点を厘Ｃ決
するもので、その目的とするところｋ」１、中窮凹ノツ
「のいずれか−刃側に配置した２条のボール転走面全同
時研削するばかりでなく、中空凹所両側に配置した削４
条のボール転走面をも同時研削）ることによって、ボー
ル転走面の仕上げ精度がよい同時研削型ベアリング本体
を安価にｉ迂産可能とし、同本体をベアリングユニット
の構Ｉｙ、要素に組入れることによって、ベアリングユ
ニットのトルク伝達能方向上、無騒音走行及び円滑走行
を図るととＫある。Therefore, the present invention solves the problems of the prior art, and its purpose is to provide two ball rolling surfaces arranged on the blade side. In addition to simultaneous grinding, grinding 4 is placed on both sides of the hollow recess.
By simultaneously grinding the ball rolling surfaces of the strips, it is possible to produce a simultaneous grinding type bearing body with a high finish accuracy on the ball rolling surface at a low cost, and the same body can be incorporated into the structure and elements of the bearing unit. By doing so, it is possible to achieve noiseless running and smooth running in terms of the torque transmission ability of the bearing unit.
以下本発明を図示の実施例に基づいて鉛、明すれは、第
１図及び第２図において、ｌはベアリング本体を示すも
ので、このベアリング本体１は断面略コ字形のブロック
体よシなυ、その中央下部に略長方形の中空凹所２を備
えていると共に、この中空凹所２葡挾んでその左右にス
カート部３．４を有している。In the following, the present invention will be described based on the illustrated embodiment. υ, is provided with a substantially rectangular hollow recess 2 at the lower center thereof, and has skirt portions 3.4 on the left and right sides of the hollow recess 2.
上記スカート部３．４の内周側面には、断面略台形の凹
溝５，６が左右対称に設けられていると共に、との凹溝
５，６の両側角部にはボール半径と略同−の曲率半径金
イ１するボール転走面７，８，９．１０がベアリング本
体１の全長にわたって軸方向へ設けられている。面し、
て第２図に明ボされるように、このボール転走１ｆｌｌ
７ 、８ 、９ 、１０のうちの上位側ボール転走面
゛ｌ、９は、ベアリング本体ｌの中心を通る垂直線Ｙ−
Ｙに対して角度３０１反をなす父差線Ｙ１上にその曲率
中心ＯＩが設定されており、一方下位側のボール転走面
８，１０は上記垂直線Ｙ−ＹＫ対して角ＩＷ６０度をな
す父差純Ｙ２１にその曲率中心ｏ１が設定されている。Grooves 5 and 6 having a substantially trapezoidal cross section are symmetrically provided on the inner circumferential surface of the skirt portion 3.4, and the corners on both sides of the grooves 5 and 6 are approximately the same as the radius of the ball. Ball rolling surfaces 7, 8, 9, and 10 having a radius of curvature of -1 are provided in the axial direction over the entire length of the bearing body 1. facing,
As clearly shown in Figure 2, this ball rolling 1fl
The upper ball raceway surfaces 1 and 9 of 7, 8, 9, and 10 are aligned with the vertical line Y- passing through the center of the bearing body 1.
The center of curvature OI is set on the helical line Y1 that makes an angle of 301 degrees opposite to Y, while the ball rolling surfaces 8 and 10 on the lower side make an angle IW of 60 degrees with respect to the vertical line Y-YK. The center of curvature o1 is set to the difference net Y21.
ここで本発明の同時研削型ペアリン゛グ本体においては
、次の方法によってそのポ ル転走面７゜８．９．１０
の同時研削を行うものである。すなわち、第１図に示さ
れるように、先ず中空凹所２の開口側全上方に向けてベ
アリング本体１を平用、な加工基準面Ｓ上に載置してお
く。次にその研削用エツジＧ、をボールの曲率と同一の
曲率に予めドレッシングした厚さ幅Ｔの一対の砥石車Ｇ
、Ｇを、上記加工基準面Ｓの上面により形成される水平
線Ｘ−Ｘとその回転中心線（／Ｉ ＋ Ｃ，がなす角［
う゛なわち切込み角度α（＃５Ｊグ：５５度乃至６５度
）で中空凹ＰＪｒ２に進入せしめる。この原性４１１、
石Ｊｉｉ−Ｇ 、 （ンＣ」、ベアリング本体ｌの長手
方向へ位相を異ならしめて配置されているのと同時にそ
の切込み方間ｔ、Ｊ、互に逆方向となっている。而して
各砥石車Ｇ、Ｇの外周側面を左右スカート部３，４の凹
溝５，６に当接させ、凹溝５，６０両側角部におりる相
互に対向する２条のボール転走面７，８と９．１（ｌｉ
同時研削するものである。Here, in the simultaneous grinding type pairing body of the present invention, the pole rolling surface 7°8.9.10 is
It performs simultaneous grinding. That is, as shown in FIG. 1, first, the bearing body 1 is placed on a flat machining reference surface S, facing all the way up on the opening side of the hollow recess 2. Next, a pair of grinding wheels G with a thickness and width T have been dressed in advance so that the grinding edge G has the same curvature as the curvature of the ball.
, G is the angle [
In other words, it enters the hollow recess PJr2 at a cutting angle α (#5J: 55 degrees to 65 degrees). This origin 411,
The stones Jii-G and (N C) are arranged with different phases in the longitudinal direction of the bearing body l, and at the same time, their cutting directions t and J are opposite to each other. The outer circumferential sides of the cars G, G are brought into contact with the grooves 5, 6 of the left and right skirt parts 3, 4, and two ball rolling surfaces 7, 8 facing each other are placed in the corners of both sides of the grooves 5, 60. and 9.1(li
Grinding is done at the same time.
斯かる場合において、各凹溝５，６の底面は前記水平線
Ｘ−Ｘに対して所定の傾斜角度β（はぼ５５度乃至６５
度）を有しており、前記した砥石車Ｇの切込み角度αは
凹溝５，６底面の傾斜角度βと同一の角度に設定されて
おり、図示の実施例においては切込み角度α及び傾斜角
度βのいずれも角度６０度となっている。また砥石車Ｇ
の厚さ幅Ｔは凹溝５，６の溝幅Ｗ１と一致ぜしめられて
いることから、凹溝５，６の溝中心線Ｃ，＋ Ｃ２と砥
石車Ｇ、Ｇの肉厚中心線Ｃｓ、Ｃｓ’に一致させながら
各凹溝５，６内に一対の砥石車Ｇ、Ｇｔ正逆方向へ嵌入
させれば、ボール転走ｉｆｒ＋７．８，９．１０の曲率
中心０１と研削用エツジＧ、の曲率中心０２は自動的に
一致するので、各ボール転走面７，８，９゜１０の曲率
中心位置、曲率等を簡易な方法でもって砧度よく力■工
できる。In such a case, the bottom surface of each groove 5, 6 has a predetermined inclination angle β (approximately 55 degrees to 65 degrees) with respect to the horizontal line XX.
The cutting angle α of the grinding wheel G described above is set to the same angle as the inclination angle β of the bottom surface of the grooves 5 and 6. In the illustrated embodiment, the cutting angle α and the inclination angle Both angles β are 60 degrees. Also, grinding wheel G
Since the thickness width T of is made to match the groove width W1 of the grooves 5 and 6, the groove center lines C and +C2 of the grooves 5 and 6 and the thickness center line Cs of the grinding wheels G and G , Cs', and insert the pair of grinding wheels G and Gt in the forward and reverse directions into the respective concave grooves 5 and 6, the center of curvature 01 of the ball rolling ifr+7.8, 9.10 and the grinding edge G Since the centers of curvature 02 of the ball rolling surfaces 7, 8, 9° 10 are automatically matched, the center of curvature, curvature, etc. of each ball rolling surface 7, 8, 9° 10 can be precisely adjusted using a simple method.
さらに上記同時研削型ベアリング本体ｌにおいて、凹溝
５，６の溝底面と水平線Ｘ−Ｘのなす角度すなわぢ傾斜
角度βをほぼ５５７）！乃至６５度の範囲内に設定した
のなよ、図面の記載から明らかなように、本発明におい
て用いられる砥石車Ｇ妊ぞの直径がベアリング本体１の
開口部径Ｗ２に比べて相当大きい大型砥石よｐ構成さｆ
’しているので、（１１（石研削の際に当該砥石車Ｇが
スカート部３．４と干渉せず且つベアリング本体１に加
わる浮上り方向荷重に対してその負荷能力を増大きせる
上で最も好ましいからである。Furthermore, in the simultaneous grinding type bearing main body l, the angle between the groove bottoms of the grooves 5 and 6 and the horizontal line X-X, that is, the inclination angle β, is approximately 557)! As is clear from the drawings, the diameter of the grinding wheel G used in the present invention is considerably larger than the opening diameter W2 of the bearing body 1. yo p composed f
Since (11) the grinding wheel G does not interfere with the skirt part 3.4 during stone grinding and increases its load capacity against the lifting direction load applied to the bearing body 1, This is because it is preferable.
１１．１２，１３．１４はベアリング本体ｌの名スカー
ト部３，４を貫通して軸方向へ延びる前記ボール転走面
７，８，９．１０と平行な４条の逃げボール穴で、該６
逃げボール穴によって鼾負荷ボール用通路が形成される
。而して４条の逃りボール穴１１，１２，１３．１４は
前記した凹７１ケ５．６の溝中心線Ｃ２，Ｃ２に対して
対称的に配置＾１されており、溝中心線Ｃ７，Ｃ２によ
って区分される近接位置の各ボール転走ｉＭ＋ ７ 、
８ 、９ 、１０との間でそれぞれＨｉ全なし、両者の
間で総計４条のボール循環路が形成されるようになされ
ている。′！１．た無負荷ボール用通路となる逃はボー
ル穴１１，１２゜１３゜１４はボールが転動し易いよう
にボール径よυ幾分太きく形成されている。11.12, 13.14 are four escape ball holes parallel to the ball rolling surfaces 7, 8, 9.10 extending in the axial direction through the skirt portions 3, 4 of the bearing body l; 6
The escape ball hole forms a passageway for the snore load ball. The four relief ball holes 11, 12, 13.14 are arranged symmetrically with respect to the groove center lines C2, C2 of the aforementioned 71 recesses 5.6, and the groove center line C7 , C2, each ball rolling iM+ 7 at a proximal position,
8, 9, and 10, respectively, and a total of four ball circulation paths are formed between them. ′! 1. The relief ball holes 11, 12, 13, and 14, which serve as passages for the unloaded balls, are formed to be somewhat thicker than the ball diameter so that the balls can easily roll.
上記同時研削型ベアリング本体は以上のように、中壁凹
所の両側に配置した凹溝内に位相金具にした一対の砥石
車を正逆方向へ嵌入させるだけで、各ボール転走面を同
時研削できるので、各号ζ−ル転走面の寸法出し作業が
一工程で終了し、従ってベアリング本体の量産が可能と
なって安価な製品を供給し得る１、また各ボール転走面
を同時研削する場合ケよ、個別研削の場合と異なシ、谷
Ｈ？−ル転走面の寸法出しすなわらその曲率中心位置や
曲率の設定がすべて一定であることから、従来に比べて
その寸法精度が飛ｙＭ的に向上する。As described above, the simultaneous grinding type bearing body can be manufactured by simply inserting a pair of grinding wheels, which are made of phase fittings, in the forward and reverse directions into the grooves placed on both sides of the inner wall recess, and simultaneously grinds each ball rolling surface. Since it can be ground, the work of determining the dimensions of each ball raceway can be completed in one step, making it possible to mass-produce the bearing body and supplying inexpensive products1. When grinding, the difference between individual grinding and valley H? - Since the dimensioning of the rolling surface, the center of curvature position and the setting of the curvature are all constant, the dimensional accuracy is significantly improved compared to the conventional method.
第３図乃至第１４図には前記の同時研削型ベアリング本
体を用いた無限摺動ベアリングユニットの第一実施例が
記載されており、このうち第３図乃至第７図にはベアリ
ングユニットの全体構成、第８図乃至第１４図にはその
部品構成が示されている。図面において１は前述した通
りのベアリング本体であるから、ぞの構ｆｚ’１．につ
いては第１図及び第２図と同一の符号を付すことによっ
て説明を省略する。3 to 14 show a first embodiment of an infinite sliding bearing unit using the above-mentioned simultaneous grinding type bearing body, and FIGS. 3 to 7 show the entire bearing unit. 8 to 14 show the structure of its parts. In the drawing, 1 is the bearing body as described above, so the structure fz'1. The same reference numerals as in FIGS. 1 and 2 are used to omit the explanation.
１５．１６はボルト等の固定手段によって前記ベアリン
グ本体１の前後端面に被着されるｔ１１１蓋で、合Ｊ′
ｉｙ、４ＯＡ脂材料まだはダイカスト合金を用いて、射
出成形法またはダイカスト鋳造法により製作さ１１る。15 and 16 are t111 covers that are attached to the front and rear end surfaces of the bearing body 1 by fixing means such as bolts, and the joint J'
The 4OA resin material is manufactured by injection molding or die casting using a die casting alloy.
而して上記側Ｍ １５ 、１６の構８１ ’ｒ−一方の
１１川蓋１５について説明すると、略コ字形の断面を４
１する側蓋１５は、その中火下部に略長方形の中程コ四
所１７を備えておυ、また該中空凹所１７を挾んでその
左右にスカート部１８ａ、１８ｂｋｉＧけているのと同
時に、該各スカート部の内周端紅に左右対称の凹溝１９
ａ、１９ｂ’ｆ形仄することによって、前記ベアリング
本体１の内周形状と相似する形状となっている。さらに
（１１１蓋１５−１、その内ｍ１に、軸方向外方へ湾曲
状に作１されたボ ル方向転換用Ｕ字溝２０ａ’、２０
ａ”と２０ ｂ’ 、 ２０１）“を有し２ている。該
各７１？−ル方向転換用Ｕ ’（’溝２（ｌａ’。To explain the structure 81'r of the above-mentioned sides M 15 and 16, the one 11 river cover 15 has a substantially U-shaped cross section.
1, the side lid 15 is provided with four approximately rectangular middle holes 17 at the lower part of the medium heat, and skirt portions 18a, 18bkiG are formed on the left and right sides of the hollow recess 17. , a symmetrical concave groove 19 on the inner edge of each skirt portion.
The shape is similar to the shape of the inner circumference of the bearing main body 1 due to the overlap between the shapes a and 19b'f. Further (111 lid 15-1, U-shaped grooves 20a' and 20 for changing the direction of the bolts curved outward in the axial direction are formed in the inner m1 of the lid 15-1.
a'' and 20 b', 201)''. Each 71? - U'('groove 2 (la') for changing the direction of the rail.
２０ａ”と２０ｂ’、２０ｂ“（Ｄ ／！＋己ｆｆｃ
ＩＭＩ係ニツイテ史Ｖ（詳述すると、上位側ボール方向
転換用Ｕ字溝２０ａ’。20a” and 20b’, 20b”(D /!+selfffc
IMI History V (To be more specific, the U-shaped groove 20a' for changing the direction of the ball on the upper side.
２０ｂ′は、ベアリング本体１の中心を通る垂直線Ｙ−
Ｙに対して角度３０度をなす又筆線Ｙ、と一致するとこ
ろ・の、側蓋の中心を通る垂直、＠Ｙｚ ｙ／線に対し
て同じく角度３０度をなす父筆線η′上にその始端全設
定されている。一方下位側のゴール方向転換用Ｕ字溝２
０ ａ″、 ２０ ｂ”は、上記垂ｉｆ ＨＹ’−Ｙ′
に対して角度６０度をなす父筆線η′上にその始端ｆ！
ｃ設定さ庇ている。次いで該プール方向転換用Ｕ字溝は
父筆線ｙ、’ 、 ｙ、’上を外方へ延びて、やがてベ
アリング本体１の逃ケホール穴１１，１２゜１３．１４
と対応する地点を終端としている。。20b' is a vertical line Y- passing through the center of the bearing body 1.
On the vertical line passing through the center of the side cover, @Yz, which coincides with the brush line Y, which makes an angle of 30 degrees to Y, and on the father pen line η', which also makes an angle of 30 degrees to the y/ line. Its starting point is fully set. On the other hand, U-shaped groove 2 for goal direction change on the lower side
0 a'', 20 b'' are the vertical if HY'-Y'
Its starting point f!
c is set. Next, the U-shaped groove for changing the direction of the pool extends outward on the parent lines y,', y,', and eventually reaches the escape hole holes 11, 12, 13, 14 of the bearing body 1.
The end point is the point corresponding to . .
要するに該各ボール方向転換用Ｕ字溝２０ ａ′。In short, each ball direction changing U-shaped groove 20a'.
２０ａ“と２０１）’ 、 ２． Ｏｂ”は、その始端
を前記ボール転走面７，８，９．１０と連通せしめるの
と同時に、その終端を前記逃げボール穴１１，１２゜１
３．１４と連通せしめられている。従ってとのが−ル方
向転換用（３字溝を備えた側蓋１５，１６によって、相
互に対応する関係にあるボール転走面７，８，９．１０
と逃げボール穴１１，１２゜１３．１４の前方側が連絡
される。一方ボール転走面７，８，９．１０と逃げボー
ル穴１１，１２゜１、３ 、１４の他方側ねこ、前記し
た一方の側蓋１５と同一の構Ｗ、ヲ有する他の側蓋１６
によって連絡ずれば、例えば−のボール転走面７ど−の
逃げボール穴１１によってボールの循環移動通路が形ｒ
Ｊｙされることになる。20a" and 201)', 2.Ob" have their starting ends communicated with the ball rolling surfaces 7, 8, 9, 10, and at the same time, their terminal ends communicate with the escape ball holes 11, 12.
3.14. Therefore, the ball rolling surfaces 7, 8, 9, 10, which are in a corresponding relationship with each other by the side covers 15, 16 with three-shaped grooves, are used for changing the direction of the ball.
The front sides of the relief ball holes 11, 12, 13, and 14 are connected. On the other hand, the ball rolling surfaces 7, 8, 9, 10 and the escape ball holes 11, 12 degrees 1, 3, 14 are on the other side, and the other side cover 16 has the same structure W as the above-mentioned one side cover 15.
For example, if the ball rolling surface 7 and the escape ball holes 11 are connected to each other, a circulation path for the balls is formed.
You will be jilted.
２１は前記ベアリング本体の中空凹所２お↓び側蓋の中
を凹所１７内に嵌挿される軌道台で、ボルト等の固着手
段を用いて工作４幾械等の可動部Δたは固定部に取（ツ
けられる。ｉｉ’ｉ７ してこの軌道台は軸方向左右上
方に突条２２，２３を有しておジ、これ等突条２２．２
３の両１＋１１にｔ」、ベアリング本体１に設けられた
ボール転走面７，８，９．１０に対応するボール半径と
略同−の曲率半径をイイするボール転走面２４．２５．
２６．２７が形Ｊ戊されている。Reference numeral 21 designates a track base which is inserted into the hollow recess 2 of the bearing body and into the recess 17 inside the side cover, and is used to secure the movable parts Δ or the working machine 4 using fixing means such as bolts. This track base has protrusions 22, 23 on the upper left and right sides in the axial direction.These protrusions 22.2
3, ball raceway surfaces 24, 25, 24, 25, and 25.
26.27 is shaped like J.
２８は前記ベアリング本体１と軌道台２１ ＩＨＩ ’
ｔて介在せしめられて循環移動するボールで、ベアリン
グ本体および軌道台のボール転走面７ 、８ 、９゜１
０と２４．２り、’２６．２７間を転動して負荷される
負荷ボール２８ａ％前記ベアリング本体１の逃げが一ル
穴１１，１２，１３．１４内を転動する無負荷が−ル２
８ｂｔ含んでいる。なお負荷ボール２８ａと無負荷ボー
ル２８ｂの相違は、同一のが一ルが負荷領域を転動して
いるか、または無負荷領域を転動しているかの差異を示
しているに過ぎない。28 is the bearing main body 1 and the track base 21 IHI'
The balls are interposed and move in circulation, and the ball rolling surfaces 7, 8, and 9°1 of the bearing body and the way are
0 and 24.2, and '26.27, and the load ball 28a% is loaded by rolling between le 2
Contains 8bt. Note that the difference between the loaded balls 28a and the unloaded balls 28b merely indicates whether the same balls are rolling in a loaded area or rolling in an unloaded area.
なお２９．３０は軸方向シール板で、その外側面にシー
ル３１．３２が焼付は固定されている。Note that 29.30 is an axial seal plate, and seals 31.32 are fixed by burning on the outer surface thereof.
該軸方向シール板２９．３０’ｔベアリング本体１にお
りるスカート部３，４の内側下方傾余１ｖ１１に数句け
ると、下刃よりベアリング本体１内へ異物が侵入するの
を防止することができる。The axial seal plate 29.30't has a downward inclination 1v11 inside the skirt portions 3 and 4 that go down into the bearing body 1, and this prevents foreign matter from entering the bearing body 1 from the lower blade. I can do it.
第１５図には本発明に係る無限摺動ベアリングユニット
の他の実施例が記載されており、この第二実施例におい
ては、第一実施例に比べて、ベアリング本体１および軌
道台２１が幅方向へ拡張されている点で相違するのみで
ある。従って第−実ゼｎ拐１１ト１紹−小欠ｒ与６Ｊｄ
千とμＷＦつイ キの宜φＨ口を省略する。FIG. 15 shows another embodiment of the infinite sliding bearing unit according to the present invention, and in this second embodiment, the bearing body 1 and track base 21 are wider than the first embodiment. The only difference is that it is expanded in the direction. Therefore, Part 1 - Actual Zen 11 To 1 Introduction - Small missing r and 6 Jd
Omit the 1,000 μWF and the φH mouth.
以上の構成よりなる無限摺動ベアリングユニットの作用
について説、明すると、例えばマニシングセンター（図
示せず）の軌道台２１に本発明のベアリングユニットを
組み込み、ベアリング本体１上に所要の機械器具をセッ
トした後、ベアリングユニットを前進、後退させると、
ベアリング本体１と軌道台２１のボール転走面７，８，
９．１０と２４．２５．２６．２７によって形成される
負荷ボール用通路内で挾持された状態による負荷ボール
２８ａは一方向へ走行する。やがて負荷ボール２８ａ１
側蓋１５のボール方向転換用Ｕ字溝２０ａ’ 、 ２０
ａ”と２０ｂ’、２０ｂ“によ９面線方向から回転方
向へ方向転換され、ベアリング本体１の逃はボール穴１
１，１２，１３．１４によって形成される無負荷が一ル
用通路内に送シ込まれ、無負荷ボール２８ｂとなる。し
かる後無負荷ボール用通路１１，１２，１３．１４内全
走行した無負荷ボール２８ｂは反対側の側蓋１６に形Ｉ
戊した。＋？−ル方方向転換用字字溝２０ ａ′、 ２
０ ｂ’ 、 ２ Ｑ ａ” 。To explain and explain the operation of the infinite sliding bearing unit having the above configuration, for example, the bearing unit of the present invention is installed in the track base 21 of a machining center (not shown), and the required machinery and equipment are mounted on the bearing body 1. After setting, move the bearing unit forward and backward.
Ball rolling surfaces 7, 8 of the bearing body 1 and the way base 21,
The load ball 28a, which is held in the load ball passage formed by 9.10 and 24.25.26.27, travels in one direction. Eventually the load ball 28a1
U-shaped grooves 20a', 20 for changing the direction of the ball in the side cover 15
a", 20b', and 20b", the direction is changed from the 9-plane direction to the rotational direction, and the relief of the bearing body 1 is connected to the ball hole 1.
1, 12, 13, and 14 is fed into the single ball passage and becomes a no-load ball 28b. After that, the unloaded ball 28b that has traveled all the way through the unloaded ball passages 11, 12, 13.
It was empty. +? - Character groove for direction change 20 a', 2
0 b', 2 Q a''.
２０ｂ“によって直線方向から回転方向へ方向転換させ
られ、再びベアリング本体ｌと軌道台２１のボール転走
面７，８，９．１０と２４．２５，２６゜２７によって
形成される負荷ボール用通路内に回帰し、負荷ボール２
８．８となる。以後回−の動作でもって整列循３Ｊ’を
繰り返すものである。20b'' from the linear direction to the rotational direction, and is again formed by the bearing body l and the ball rolling surfaces 7, 8, 9, 10 and 24, 25, 26° 27 of the track base 21. Return to the inside and load ball 2
It becomes 8.8. Thereafter, the sorting cycle 3J' is repeated with the following operations.
以上の構成および作用からなる本発明の無限摺動ベアリ
ングユニットは、その構成要素として同時研削型ベアリ
ング本体全組込んでおシ、シかもこの同時研削型ベアリ
ング本体におけるボール転走■ｊの寸法ｆ１度が極めて
高いことから、ベアリング本体と軌道台のボール転走面
間にがたを生じることもなく、従ってボールを整列循環
させる際、負荷ボールによるトルク伝達を良好に行える
は７Ｊ上りでなくボール転走面の偏摩耗を未然に防止で
きる。またボール転走面間にがたを生じることがなりれ
ば、その水平度を維持しながらベアリング本体を無騒音
で走行させ得る効果もある。さらにベアリング本体のボ
ール転走面を高精度に仕上げることができれは、Ｈζ−
ル転勤時にボール転走面に加わる血圧も一定となり、予
期せぬ摺動抵抗の増加を防止できるので、ベアリング本
体の円滑な走行を保障し得て全体的にベアリングユニッ
トの走行性能が飛躍的に向上する等積々の効Ｍ、を奏す
るものである。The infinite sliding bearing unit of the present invention having the above-mentioned configuration and operation incorporates the entire simultaneous grinding type bearing body as its component. Because of the extremely high degree of friction, there is no play between the bearing body and the ball rolling surface of the track base, and therefore, when the balls are aligned and circulated, torque transmission by the load balls can be performed well with the 7J uphill ball. Uneven wear on the raceway can be prevented. Furthermore, if there is any play between the ball rolling surfaces, the bearing body can run noiselessly while maintaining its levelness. Furthermore, if the ball rolling surface of the bearing body can be finished with high precision, Hζ-
The blood pressure applied to the ball rolling surface during wheel transfer remains constant, preventing an unexpected increase in sliding resistance, ensuring smooth running of the bearing body, and dramatically improving the overall running performance of the bearing unit. It exhibits an increasing effect M.
第１図は砥石車によって同時研削されるベアリング本体
を示す加工説り１図、第２図は同時４１ノＦ削されたベ
アリング本体の正面図、第３図ｔよ同時イσ１削型ベア
リング本体を組込んだ本発１ｊｌＪに係る）Ｉ！ｅ限Ｊ
−！動ベアリングユニットの第一実施例を示す一部破断
側面図、第４図は同無限摺動ユニットの正面図、第５図
は第３崗■−■絹！（１ζ断面図、第６図は比５図Ｖｔ
−Ｖｔ線要部縦断面図、第７図はＱｔ道台金除いた状態
の第５図■−■ＩＶＩ！縦断ｉｎｊ図、第８図は側’！
４の外部正面図、第９図シ」−同内部止面南、第１０図
は同左側面図、第１１図は第９図ＸＩ−ＸＩ線縦断向図
、第１２図は第９図Ｘ１ｌ−Ｘｎ線端１ｒｉ＋図、第１
３図は軌道台の正面図、第１４図ｔ」、同（ＩＩＩＩ匍
図、第１５図は本発明に係る無限摺動ベアリングユニッ
トの第二実施例を示す横断正面１図、第１６図は従来の
個別研削型ベアリング本体の加工説明図である。
符号の説明
■・・・ベアリング本体 ２，１７・・・中壁凹所３
、４ 、１８ ａ 、 １８ ｂ−スカート部５ 、６
、１９ ａ 、 １９ ｂ −＝凹溝７．８，９，１
０，２４，２５，２６．２７・・・ボール転走面（負荷
ボール用通路）１１ 、 ］、 ２ 、 ］、 ３ 、
１．４・・・逃げボール穴（無ｊ勺荷ボール用通路）
１５．１６・・・側蓋
２０ ａ’ 、 ２０ ｈ／Ｌ、 ２０ ｂ’ 、 ２
０ ｂ”ボール方向転換用Ｕ字溝
２１・・・軌道台 ２２．２３・・・突条２８・・・ボ
ール ２８ａ・・・負荷ｄσ−ル２８ｂ・・・無負荷ボ
ール
２９ 、３０ シール板
Ｃ，・・・砥石用、の回転中心線Ｃ２・・・凹溝の溝中
心線Ｃ３・・・砥石車の肉厚中心線 Ｇ・・・砥石車Ｇ
、・・・る＋） Ｉ！ＩＩＩ Ｆｔ：Ｉエツジ０、・・
・ボール転走面の曲率中心
０、・・・研削用エツジの曲率中心
Ｓ・・・加工基準面 Ｔ・・・厚さ幅
Ｘ・・・水平線 Ｙ’ 、 Ｙ’・・垂１８線Ｙ、 、
Ｙ２． Ｙ、’、 Ｙ２／・・・父筆線 ｗ４・・・
凹溝の溝幅Ｗ２・・・開口幅 α・切込み角度
β・・・傾斜角度
特許出願人 寺 １１ＩＪ’ ｊカ
代理人 弁理± １Ｍ、良 和 イ計
ゝ・１Figure 1 is a processing diagram showing the bearing body that is simultaneously ground by a grinding wheel, Figure 2 is a front view of the bearing body that has been simultaneously ground by 41 degrees F, and Figure 3 is a σ1-ground bearing body that is simultaneously ground by a grinding wheel. ) I! e limit J
-! A partially cutaway side view showing the first embodiment of the dynamic bearing unit, FIG. 4 is a front view of the same infinite sliding unit, and FIG. 5 is the third example. (1ζ sectional view, Figure 6 is a ratio 5Vt
- Vt line main part longitudinal sectional view, Figure 7 is the Qt road with the metal removed, Figure 5 ■-■IVI! Longitudinal inj diagram, Figure 8 is the side'!
Figure 10 is a left side view of the same, Figure 11 is a vertical sectional view taken along the line XI-XI of Figure 9, Figure 12 is a view of Figure 9 X1l-. Xn line end 1ri+ figure, 1st
3 is a front view of the track base, FIG. 14 is a front view of the track, FIG. It is a processing explanatory diagram of a conventional individually ground type bearing body. Explanation of symbols ■... Bearing body 2, 17... Inner wall recess 3
, 4 , 18 a , 18 b - skirt portion 5 , 6
, 19 a , 19 b −=concave groove 7.8, 9, 1
0, 24, 25, 26. 27...Ball rolling surface (loaded ball passage) 11, ], 2, ], 3,
1.4... Escape ball hole (passage for unloaded balls) 15.16... Side cover 20 a', 20 h/L, 20 b', 2
0 b" U-shaped groove for changing ball direction 21...Railway 22.23...Protrusion 28...Ball 28a...Load dσ-rule 28b...No-load ball 29, 30 Seal plate C ,...Rotation center line C2 for the grinding wheel...Groove center line C3...Thickness center line of the grinding wheel G...Grinding wheel G
,...ru+) I! III Ft:I edge 0,...
- Center of curvature of ball rolling surface 0,... Center of curvature of grinding edge S... Machining reference surface T... Thickness width X... Horizontal line Y', Y'... Vertical 18 line Y, ,
Y2. Y, ', Y2/...father stroke line w4...
Concave groove width W2...Opening width α・Cutting angle β...Inclination angle Patent applicant Tera 11IJ' j Ka agent Patent attorney ± 1M, Yoshikazu I Total ゝ・1
Claims (1)
つ該スカート部の内周側面に相対向する凹溝を刻設した
断面路コ字形のブロック体であって、上記凹溝に該凹溝
の溝幅と同一の厚さ幅を有する砥石車を所定の切込み角
度で当接せしめて該凹溝の両側に軸方向に延びる数条の
ボール転走面を同時研削すると共に、前記スカート部の
中実部に上記各ボール転走面と組をなす軸方向の無負荷
ボール用通路を同数貫通状に設けたベアリング本体と、 値ベアリング本体の各ボール転走面と対合なすボール転
走面を左右突条の両側に設け、ベアリング本体を摺動自
在に保持する軌道台と、該軌道台上に搭載されるベアリ
ング本体の前後開口部に被着される蓋体であって、前記
ベアリング本体及び軌道台の対応する各ボール転走面間
に形成される負荷ボール用通路とベアリング本体の無負
荷ボール用通路を連絡するボール方向転換Ｕ字溝を備え
た側蓋と、 上記負荷ボール用通路と無負荷４？−ル用通路の間食循
環移動するボールとからなる同時研削型ベアリング本体
を用いた無限摺動ベアリングユニット。[Scope of Claims] A block body having a U-shaped cross section, which has skirt portions on the left and right sides sandwiching a hollow recess at the lower center, and has opposing grooves carved on the inner circumferential side of the skirt portions. , A grinding wheel having the same thickness and width as the groove width of the groove is brought into contact with the groove at a predetermined cutting angle to simultaneously form several ball rolling surfaces extending in the axial direction on both sides of the groove. a bearing body which is ground and has the same number of axial unloaded ball passages that form a pair with each of the ball raceway surfaces in the solid portion of the skirt portion; and each ball raceway surface of the bearing body. A track base that slidably holds the bearing body, with ball rolling surfaces facing each other provided on both sides of the left and right protrusions, and a cover that is attached to the front and rear openings of the bearing body mounted on the track base. a side provided with a ball direction changing U-shaped groove that communicates a loaded ball passage formed between corresponding ball rolling surfaces of the bearing body and the track base and an unloaded ball passage of the bearing body; The lid, the passage for the load ball mentioned above, and the unloaded 4? - Infinite sliding bearing unit using a simultaneous grinding type bearing body consisting of a ball that circulates and snacks in the passage for the ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58171265A JPS6067065A (en) | 1983-09-19 | 1983-09-19 | Limitless slidable bearing unit which uses simultaneous grinding type bearing body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58171265A JPS6067065A (en) | 1983-09-19 | 1983-09-19 | Limitless slidable bearing unit which uses simultaneous grinding type bearing body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6067065A true JPS6067065A (en) | 1985-04-17 |
Family
ID=15920118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58171265A Pending JPS6067065A (en) | 1983-09-19 | 1983-09-19 | Limitless slidable bearing unit which uses simultaneous grinding type bearing body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6067065A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63158319A (en) * | 1986-12-23 | 1988-07-01 | Hiroshi Teramachi | Ball bearing for linear sliding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3305974A (en) * | 1964-10-01 | 1967-02-28 | Thompson Grinder Co | Grinding machine |
| JPS5572912A (en) * | 1978-11-25 | 1980-06-02 | Hiroshi Teramachi | 4-direction equal-load type linear bearing |
| JPS55144953A (en) * | 1979-04-24 | 1980-11-12 | Toyoda Mach Works Ltd | Grinding method |
-
1983
- 1983-09-19 JP JP58171265A patent/JPS6067065A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3305974A (en) * | 1964-10-01 | 1967-02-28 | Thompson Grinder Co | Grinding machine |
| JPS5572912A (en) * | 1978-11-25 | 1980-06-02 | Hiroshi Teramachi | 4-direction equal-load type linear bearing |
| JPS55144953A (en) * | 1979-04-24 | 1980-11-12 | Toyoda Mach Works Ltd | Grinding method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63158319A (en) * | 1986-12-23 | 1988-07-01 | Hiroshi Teramachi | Ball bearing for linear sliding |
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