JPS6252167B2 - - Google Patents
Info
- Publication number
- JPS6252167B2 JPS6252167B2 JP59158983A JP15898384A JPS6252167B2 JP S6252167 B2 JPS6252167 B2 JP S6252167B2 JP 59158983 A JP59158983 A JP 59158983A JP 15898384 A JP15898384 A JP 15898384A JP S6252167 B2 JPS6252167 B2 JP S6252167B2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- bearing body
- groove
- bearing
- tube
- 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.)
- Expired
Links
- 230000036316 preload Effects 0.000 claims description 12
- 230000002265 prevention Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 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
- F16C29/0652—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 at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage
- F16C29/0666—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 at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage 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
- F16C29/0604—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section
- F16C29/0607—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section of parts or members for retaining the rolling elements, i.e. members to prevent the rolling elements from falling out of the bearing body or carriage
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、工作機械のテーブル、位置決めテ
ーブル等の直線運動部分の案内に用いられる直線
運動軸受であつて転動体としてローラを用いたも
のに関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a linear motion bearing used for guiding a linear motion part of a machine tool table, positioning table, etc., which uses rollers as rolling elements.
従来技術及びその問題点
従来のこの種の直線運動軸受としては、先ず、
特開昭55−109819号公報に示されるものがある。
このものは、軌道台と軸受本体との間に介在する
ローラを循環させるためにベアリング本体の端面
に曲面を加工する必要があり、且つ予圧装置が設
けられてない欠点を有する。そして、第２の従来
例としては、特開昭59−13118号公報に示される
ものがあるが、このものは予圧装置との位置関係
上、ローラの循環経路が複雑な曲線になつている
ばかりでなく、エンドキヤツプが必要であり、且
つ本体端面の曲面加工も必要とする欠点がある。
そして、上記いずれの従来例も、軸受本体には負
荷ローラ溝のほかに、戻りローラ用の穴（または
溝）を形成しなければならないという問題があつ
た。Prior art and its problems As a conventional linear motion bearing of this type, first of all,
There is one shown in Japanese Unexamined Patent Publication No. 109819/1983.
This has the disadvantage that it is necessary to process a curved surface on the end face of the bearing body in order to circulate the rollers interposed between the track and the bearing body, and there is no preload device. A second conventional example is disclosed in Japanese Patent Application Laid-Open No. 59-13118, but in this case, the circulation path of the roller is a complicated curve due to the positional relationship with the preload device. However, there are disadvantages in that an end cap is required and the end surface of the main body also requires curved surface machining.
In all of the above conventional examples, there was a problem in that in addition to the load roller groove, a hole (or groove) for the return roller had to be formed in the bearing body.
発明の目的
本発明の目的は、前記のような従来のローラ循
環機構の簡素化を図るとともに、簡便な予圧調整
装置を備えたローラ式直線運動軸受を提供するこ
とである。OBJECTS OF THE INVENTION An object of the present invention is to simplify the conventional roller circulation mechanism as described above, and to provide a roller type linear motion bearing equipped with a simple preload adjustment device.
問題点を解決するための手段及び作用
前記目的を達成するため、本発明は、負荷ロー
ラ溝を形成し戻りローラ穴または溝を形成してい
ない軸受本体に、各々Ｖ断面を有する２つ割の対
向Ｊ字状のチユーブ体からなるチユーブを、前記
負荷ローラ溝との間でローラの循環経路を形成す
るように配置したことを特徴とする。このような
チユーブ体を用いることにより、軸受本体の戻り
ローラ用の穴又は溝のみならず軸受本体両端部の
曲面加工及びエンドキヤツプを不要とし、更に、
軸受本体上面にテーパーを利用した予圧装置を設
けることにより微妙な予圧の調整を行なえるよう
にしたものである。Means and Effects for Solving the Problems In order to achieve the above object, the present invention provides a bearing body in which a load roller groove is formed and a return roller hole or groove is not formed, each having a V cross section. It is characterized in that tubes made of opposed J-shaped tube bodies are arranged so as to form a circulation path for the rollers between the tubes and the load roller grooves. By using such a tube body, not only the hole or groove for the return roller in the bearing body but also the curved surface machining and end caps at both ends of the bearing body are unnecessary, and furthermore,
By providing a preload device using a taper on the upper surface of the bearing body, it is possible to finely adjust the preload.
実施例
以下、本発明の実施例を添付図面に基づいて説
明すると、第１図乃至第３図は２列のチユーブ体
を用いる場合を示すものであつて、左右は対称に
現れるのが通常であるから、左半分は省略して示
している。軌道台１は両側面にＶ型負荷ローラ溝
１′，１′及び中央部の凹溝１″を有している。軸
受本体２はスカート部内面に同じく一対のＶ型負
荷ローラ溝２′，２′を有している。そして、その
中央部にスキユー防止ブロツク３及びローラの脱
落防止プレート４を取付ける。なお、スキユー防
止ブロツク３とローラ脱落防止プレート４は一体
に形成してもよい。Embodiments Hereinafter, embodiments of the present invention will be explained based on the accompanying drawings. FIGS. 1 to 3 show a case where two rows of tube bodies are used, and the left and right sides usually appear symmetrical. Therefore, the left half is omitted. The track 1 has V-shaped load roller grooves 1', 1' on both sides and a concave groove 1'' in the center.The bearing body 2 also has a pair of V-shaped load roller grooves 2', 1' on the inner surface of the skirt portion. A skew prevention block 3 and a roller fall prevention plate 4 are attached to the center thereof.The skew prevention block 3 and roller fall prevention plate 4 may be formed integrally.
符号５，５′はいずれも一対の対向Ｊ字状（第
２図参照）の２つ割チユーブ体５ｂ，５ｃを組合
せてなるチユーブであつて、軸受本体２に対して
ゴム６を焼付けたカバー７をかぶせてボルト８に
より固定されている。２つ割チユーブ体５ｂ，５
ｃの各々は、第１図から明らかなようにＶ断面を
有している。符号９は両端面のシール板であり、
上方で本体端面にねじ止めし、下方ではカバー７
の端部のかぎ部１３で固定している。 Reference numerals 5 and 5' are both tubes formed by combining a pair of opposing J-shaped (see Figure 2) two-split tube bodies 5b and 5c, and a cover with rubber 6 baked onto the bearing body 2. 7 and fixed with bolts 8. Two-piece tube body 5b, 5
As is clear from FIG. 1, each of c has a V-shaped cross section. Reference numeral 9 is a seal plate on both end faces;
It is screwed to the end face of the main body at the top, and the cover 7 is screwed at the bottom.
It is fixed with a hook part 13 at the end of.
前記のチユーブ５，５′の組合せは、２つ割
（半割）にすることによつて、プレス成形を容易
にするとともにローラの組み込みを容易にしてい
る。そして、このようなチユーブ５，５′は前記
のように軸受本体２に固定し、断面Ｖ字型の負荷
ローラ溝２′，２′の端面と接合させることにより
容易にローラＲの無限循環経路を形成することが
できる。第２図の符号５ａは、ローラの掬い出し
爪である。 The above-mentioned combination of tubes 5 and 5' is divided into two parts (halved) to facilitate press forming and to facilitate installation of rollers. Such tubes 5, 5' are fixed to the bearing main body 2 as described above and joined to the end surfaces of the load roller grooves 2', 2' having a V-shaped cross section, thereby easily forming an endless circulation path of the roller R. can be formed. Reference numeral 5a in FIG. 2 is a scooping claw of the roller.
ローラＲの組み込みに際しては、軸受本体２を
裏返しにして組立治具の上に置き、半割チユー
ブ、ローラ、半割チユーブ、半割チユーブ、ロー
ラ、半割チユーブの順に積み重ねた後、カバーを
ボルト締めすればよく、非常に簡単に行うことが
できる。 When assembling the roller R, turn the bearing body 2 upside down and place it on the assembly jig. After stacking the half tube, roller, half tube, half tube, roller, and half tube in this order, bolt the cover on. All you have to do is tighten it, and it's very easy to do.
更に、本発明においては、軸受本体２にテーパ
ー式の予圧装置１０を設けている。ねじ１１を締
め付けることにより、軌道台１と軸受本体２間の
予圧を微妙に調整することができる。 Furthermore, in the present invention, the bearing body 2 is provided with a tapered preload device 10. By tightening the screws 11, the preload between the track 1 and the bearing body 2 can be finely adjusted.
なお、２つ割チユーブ体からなるチユーブ５，
５′はタンデムに配置してあるが、これらのチユ
ーブの間にスペーサーを入れてその間隔を調整す
ることもある。 In addition, tube 5 consisting of a two-split tube body,
5' are arranged in tandem, but spacers may be inserted between these tubes to adjust their spacing.
次に第４図の実施例について説明すると、この
図のものは一列溝の場合である。これ迄の符号と
同一のものは同等の要素を表わす。 Next, the embodiment shown in FIG. 4 will be explained. This figure shows the case of a single row of grooves. The same symbols as those used up to this point represent equivalent elements.
軌道台１は両側面にＶ形負荷ローラ溝１′を有
している。 The track 1 has V-shaped load roller grooves 1' on both sides.
軸受本体２もスカート部内面にＶ型負荷ローラ
溝２′を有している。２つ割のプレス成形チユー
ブ５は同様に対向Ｊ字状のものである。 The bearing body 2 also has a V-shaped load roller groove 2' on the inner surface of the skirt portion. The two-split press-formed tube 5 is similarly J-shaped.
この場合、ローラ脱落防止保持器１２はＬ字形
プレートで、カバー７で軸受本体２に固定されて
いる。 In this case, the roller drop-off prevention retainer 12 is an L-shaped plate and is fixed to the bearing body 2 with a cover 7.
この実施例においても同様にテーパー式の予圧
装置１０を設けることができる。 In this embodiment as well, a tapered preload device 10 can be provided.
そして、この実施例の場合は、従来技術の項に
おいて引用した文献に示されているように、ロー
ラはクロスローラ式配置とする。 In this embodiment, the rollers are arranged in a cross-roller arrangement, as shown in the literature cited in the prior art section.
なお、以上の実施例の説明においては、左右が
対称に現れる場合について述べたが、本発明によ
るローラ式直線運動軸受はこれをモジユール化す
ることも当然可能である。即ち、軸受本体と軌道
台をモジユール化しておけば、これらのモジユー
ルを他の機械部品（例えば、工作機械のテーブル
とベツド）に夫々ねじ止めすることによつて簡単
にローラ式直線運動軸受として用いることができ
るのである。 In addition, in the above description of the embodiment, the case where the left and right sides appear symmetrically was described, but it is of course possible to modularize the roller type linear motion bearing according to the present invention. In other words, if the bearing body and the track are modularized, these modules can be easily used as a roller type linear motion bearing by screwing them to other machine parts (for example, the table and bed of a machine tool), respectively. It is possible.
発明の効果
本発明は以上のように構成されているから、負
荷容量、剛性ともに高いローラを転動体として用
いた直線運動軸受を簡単な構成で実現することが
できる。ローラはＶ型溝に接するようになつてい
るから、４方向に等しく荷重を支持することがで
きることはいうまでもない。Effects of the Invention Since the present invention is configured as described above, a linear motion bearing using rollers with high load capacity and high rigidity as rolling elements can be realized with a simple configuration. Since the roller is in contact with the V-shaped groove, it goes without saying that it can equally support loads in four directions.
そして、チユーブ式の循環経路を用いているの
で、軸受本体の戻りローラ穴又は溝のみならず両
端部の曲面加工、エンドキヤツプがいずれも不要
となり、軸受の全体構成が極めて簡略化される。 Since a tube-type circulation path is used, not only the return roller hole or groove in the bearing body, but also the curved surface processing and end caps at both ends are unnecessary, and the overall structure of the bearing is extremely simplified.
更に、軸受本体上面にテーパーを利用した予圧
装置を設けることにより、微妙な予圧の調整も可
能となる。 Furthermore, by providing a preload device using a taper on the upper surface of the bearing body, it is possible to finely adjust the preload.
図面は本発明の実施例を示すもので、第１図は
第１の実施例の縦断面図でその左半分を省略した
もの、第２図は第１図の−線方向断面図、第
３図は第１図の−線方向断面図、第４図は第
２の実施例を示すもので、第１図に相当する図で
ある。
１……軌道台、２……軸受本体、５，５′……
チユーブ、５ｂ，５ｃ……チユーブ体、１０……
予圧調整装置。
The drawings show embodiments of the present invention, and FIG. 1 is a longitudinal sectional view of the first embodiment with the left half omitted, FIG. 2 is a sectional view in the - line direction of FIG. 1, and FIG. This figure is a cross-sectional view taken along the - line in FIG. 1, and FIG. 4 shows a second embodiment, which corresponds to FIG. 1. 1...Railway base, 2...Bearing body, 5, 5'...
Tube, 5b, 5c...Tube type, 10...
Preload adjustment device.
Claims (1)
を形成していない軸受本体に、各々Ｖ断面を有す
る２つ割の対向Ｊ字状のチユーブ体からなるチユ
ーブを、前記負荷ローラ溝との間でローラの循環
経路を形成するように配置したことを特徴とす
る、ローラ式直線運動軸受。 ２ 軸受本体上面にテーパー式予圧調整装置を有
することを特徴とする特許請求の範囲第１項記載
のローラ式直線運動軸受。[Scope of Claims] 1. A tube consisting of two opposing J-shaped tube bodies each having a V cross section is attached to a bearing body in which a load roller groove is formed and a return roller hole or groove is not formed. A roller type linear motion bearing, characterized in that the roller is arranged so as to form a circulation path between the roller and the roller groove. 2. The roller type linear motion bearing according to claim 1, which has a tapered preload adjustment device on the upper surface of the bearing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15898384A JPS6138216A (en) | 1984-07-31 | 1984-07-31 | Linear motion roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15898384A JPS6138216A (en) | 1984-07-31 | 1984-07-31 | Linear motion roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6138216A JPS6138216A (en) | 1986-02-24 |
| JPS6252167B2 true JPS6252167B2 (en) | 1987-11-04 |
Family
ID=15683646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15898384A Granted JPS6138216A (en) | 1984-07-31 | 1984-07-31 | Linear motion roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6138216A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01112021A (en) * | 1987-10-26 | 1989-04-28 | Nippon Thompson Co Ltd | Retainer for straight-line guiding unit |
| JP2603518B2 (en) * | 1987-11-30 | 1997-04-23 | 株式会社ツバキ・ナカシマ | Ball bearing for linear motion |
| JP5317557B2 (en) * | 2008-07-04 | 2013-10-16 | Ｔｈｋ株式会社 | Exercise guidance device |
| TWI504819B (en) * | 2013-06-19 | 2015-10-21 | Chieftech Prec Co Ltd | Slider assembly |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431260U (en) * | 1977-08-03 | 1979-03-01 | ||
| JPS5833821B2 (en) * | 1976-11-15 | 1983-07-22 | エプソン株式会社 | printer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833821U (en) * | 1981-08-28 | 1983-03-05 | エヌ・テ−・エヌ東洋ベアリング株式会社 | Circulating linear motion bearing device |
-
1984
- 1984-07-31 JP JP15898384A patent/JPS6138216A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833821B2 (en) * | 1976-11-15 | 1983-07-22 | エプソン株式会社 | printer |
| JPS5431260U (en) * | 1977-08-03 | 1979-03-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6138216A (en) | 1986-02-24 |
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