JPS636503Y2 - - Google Patents
Info
- Publication number
- JPS636503Y2 JPS636503Y2 JP1983163175U JP16317583U JPS636503Y2 JP S636503 Y2 JPS636503 Y2 JP S636503Y2 JP 1983163175 U JP1983163175 U JP 1983163175U JP 16317583 U JP16317583 U JP 16317583U JP S636503 Y2 JPS636503 Y2 JP S636503Y2
- Authority
- JP
- Japan
- Prior art keywords
- ball
- rolling
- bearing body
- lid
- bearing
- 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
- 238000005096 rolling process Methods 0.000 claims description 36
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Bearings For Parts Moving Linearly (AREA)
Description
【考案の詳細な説明】
イ 産業上の利用分野
この考案は、工作機械等のスライドテーブルや
その他測定器、プレス機のスライド部等に利用さ
れる直線運動軸受に関する。[Detailed description of the invention] A. Field of industrial application This invention relates to linear motion bearings used in slide tables of machine tools, other measuring instruments, sliding parts of press machines, etc.
ロ 従来技術
一般に、工作機械等のスライドテーブルやその
他測定器、プレス機のスライド部等の如き直線運
動を行う機械装置に於いては、摺動ストロークを
無限に取ることのできる転動体循環形式の直線運
動軸受を使用することが多い。B. Prior art In general, in mechanical devices that perform linear motion such as slide tables of machine tools, other measuring instruments, slide parts of press machines, etc., rolling element circulation type that can take an infinite sliding stroke is used. Linear motion bearings are often used.
而して、従来の上記の如き転動体循環形式の直
線運動軸受の構造は、第１図乃至第３図に示すよ
うに、所定長さの長尺な断面矩形状の軌道レール
１の上面及び両側面に夫々転走溝２を形成し、こ
の軌道レール１上に断面コ字形状の軸受本体３を
跨架し、この軸受本体３の内周面に前記軌道レー
ル１の転走溝２と対応させて夫々転走溝４を形成
すると共にと、この転走溝４と所定の間を隔てた
隣接部位に両端面に貫通した返還穴５を形成し、
かつ、前記軸受本体３の両端面に蓋体６を取付固
定し、この蓋体６に前記軸受本体３の転走溝４と
返還穴５を連絡する反転溝７を形成し、更に、前
記軸受本体３の転走溝４及び返還穴５並びに蓋体
６の反転溝７で構成される各ボール循環路に一部
保持器８で保持されてボール９を多数収容してい
る。 As shown in FIGS. 1 to 3, the structure of the conventional linear motion bearing of the rolling element circulation type as described above is as follows: Rolling grooves 2 are formed on both sides, and a bearing body 3 having a U-shaped cross section is straddled over the track rail 1, and the rolling grooves 2 of the track rail 1 and the raceway grooves 2 of the track rail 1 are formed on the inner peripheral surface of the bearing body 3. A rolling groove 4 is formed in correspondence with each other, and a return hole 5 penetrating through both end surfaces is formed in an adjacent portion separated from the rolling groove 4 by a predetermined distance,
A cover body 6 is attached and fixed to both end surfaces of the bearing body 3, and a reversal groove 7 is formed in the cover body 6 to connect the rolling groove 4 and the return hole 5 of the bearing body 3. A large number of balls 9 are housed in each ball circulation path formed by the rolling groove 4 and return hole 5 of the main body 3 and the reversing groove 7 of the lid 6, partially held by a retainer 8.
ところで、上記した従来の転動体循環形式の直
線運動軸受に於いて、軸受本体３の転走溝４と返
還穴５とを連絡する反転路を構成する方法として
は、第４図乃至第６図に示すように、蓋体６の反
転溝７に該反転溝７を横切つて嵌合溝１０を形成
し、この嵌合溝１０に断面円弧状（かまぼこ形）
の反転中子１１を嵌合組合せて構成したものであ
る。従つて、蓋体６の反転溝７に夫々嵌合溝１０
を加工し、この加工溝１０に夫々反転中子１１を
嵌合組合せする必要がある為、反転中子１１の位
置決め上若干のズレ等の誤差が生じ易く、これに
よりボール９がスムーズに転動し難いと云う欠点
がある。 By the way, in the above-described conventional rolling element circulation type linear motion bearing, a method of configuring a reversing path that connects the rolling groove 4 of the bearing body 3 and the return hole 5 is shown in FIGS. 4 to 6. As shown in FIG. 2, a fitting groove 10 is formed in the reversing groove 7 of the lid body 6 across the reversing groove 7, and the fitting groove 10 has an arcuate cross section (semi-circular shape).
It is constructed by fitting and combining two inverted cores 11. Therefore, the fitting grooves 10 are provided in the reversal grooves 7 of the lid body 6, respectively.
Since it is necessary to machine the reversing cores 11 and fit and assemble the reversing cores 11 into the machined grooves 10, errors such as slight misalignment are likely to occur in the positioning of the reversing cores 11, which prevents the balls 9 from rolling smoothly. It has the disadvantage that it is difficult to do.
ハ 考案の目的
この考案は、製作が容易となると同時に、ボー
ルの転動がスムーズになるようになした転動体循
環形式の直線運動軸受を提供せんとするものであ
る。C. Purpose of the invention This invention aims to provide a linear motion bearing of rolling element circulation type that is easy to manufacture and allows smooth rolling of the balls.
ニ 考案の構成
この考案は、蓋体をボールの反転内径側案内と
なる転走面を有する内蓋とボールの反転外径側案
内となる転走面を有する外蓋とで構成し、前記内
蓋と外蓋とを重合組合せて前記両転走面によりボ
ール反転路を形成し、かつ、前記内蓋と外蓋の重
合面に上記反転用転走面部分を突出して形成した
位置決め用インロー部を設けたことを要旨とす
る。D. Structure of the device In this device, the lid body is composed of an inner lid having a raceway surface that guides the ball in an inverted inner diameter direction, and an outer lid that has a raceway surface that guides the ball in an inverted outer diameter direction. A positioning spigot portion formed by overlappingly combining a lid and an outer lid to form a ball reversing path with both raceway surfaces, and protruding the reversing rolling surface portion from the overlapping surface of the inner lid and outer lid. The main point is that this has been established.
ホ 実施例
第７図はこの考案の転動体循環形式の直線運動
軸受の一例を示すもので、１２は所定長さの長尺
な断面矩形状の軌道レールで、上面及び両側面に
夫々転走溝１３を形成している。１４は前記軌道
レール１２上に跨架した断面コ字形状の軸受本体
で、軌道レール１２に相対する内周面に軌道レー
ル１２の転走溝１３に夫々対応させて転走溝１５
を形成すると共に、この転走溝１５と夫々対応さ
せて所定の間を隔てた隣接部位に両端が端面に開
口した返還穴１６を該転走溝１５と平行させて形
成している。１７は軸受本体１４の前後端面を被
蓋する蓋体で、軸受本体１４の転走溝１５と返還
穴１６とを連絡するボール１８の反転路１９を形
成している。この蓋体１７は第８図に示すよう
に、ボール１８の反転内径側案内となる転走面２
０を形成した穴２１を有する内蓋２２と、ボール
１８の反転外径側案内となる転走面２３を形成し
た側段面が円弧状の溝２４を有する外蓋２５とか
らなり、この内蓋２２と外蓋２５を組合せて転走
面２０，２３により前記ボール反転路１９を形成
している。蓋体１７の内蓋２２と外蓋２５は、外
蓋２５の転走面２３を延出させて形成した雄型の
インロー部２６を内蓋２２の穴２１に形成した雌
型のインロー部２７に嵌合させて衝合しているか
ら、正確に位置決めされてズレ等の誤差を生じる
ことなく組合せることができる。E. Embodiment Figure 7 shows an example of a linear motion bearing of the rolling element circulation type of this invention, in which reference numeral 12 denotes a track rail with a predetermined length and a rectangular cross section, with rolling elements on the top and both sides. A groove 13 is formed. Reference numeral 14 denotes a bearing body having a U-shaped cross section and extending over the track rail 12, and has rolling grooves 15 on the inner peripheral surface facing the track rail 12 corresponding to the rolling grooves 13 of the track rail 12, respectively.
At the same time, return holes 16 with open ends at both ends are formed parallel to the rolling grooves 15 at adjacent portions separated by a predetermined distance in correspondence with the rolling grooves 15, respectively. A cover 17 covers the front and rear end surfaces of the bearing body 14, and forms a reversal path 19 for the balls 18 that communicates the rolling groove 15 of the bearing body 14 with the return hole 16. As shown in FIG.
It consists of an inner cover 22 having a hole 21 formed with a diameter of 0, and an outer cover 25 having a groove 24 with an arcuate side step surface forming a rolling surface 23 that guides the ball 18 on the reverse outer diameter side. The ball reversing path 19 is formed by the rolling surfaces 20 and 23 by combining the lid 22 and the outer lid 25. The inner lid 22 and the outer lid 25 of the lid body 17 have a male spigot part 26 formed by extending the rolling surface 23 of the outer lid 25 and a female spigot part 27 formed in the hole 21 of the inner lid 22. Since they are fitted and abutted against each other, they can be accurately positioned and assembled without any errors such as misalignment.
尚、図面中、２８は蓋体１７を軸受本体１４に
止着するボルト、２９はボール１８を保持する保
持器、３０は軸受内部を密封するシール部材であ
る。 In the drawings, 28 is a bolt that fixes the lid 17 to the bearing body 14, 29 is a retainer that holds the balls 18, and 30 is a seal member that seals the inside of the bearing.
上記構造の直線運動軸受では、ボール反転路１
９を有する蓋体１７を内蓋２２と外蓋２５の２分
割構造で構成したから、蓋体１７を合成樹脂を素
材として射出成形することにより簡単にかつ高精
度に製作することができる。また、ボール反転路
１９はインロー部２６，２７でズレ等の誤差を生
じることなく正確に位置決めして接続されると共
にインロー部２６の先端が直線部付近まで延長さ
れている為、ボール１８はスムーズに転走し、軸
受本体１４は滑らかに移動する。 In the linear motion bearing of the above structure, ball reversal path 1
Since the lid body 17 having the inner lid 22 and the outer lid 25 has a two-part structure, the lid body 17 can be manufactured easily and with high precision by injection molding using synthetic resin as a material. In addition, the ball reversing path 19 is accurately positioned and connected at the spigot parts 26 and 27 without any errors such as misalignment, and the tip of the spigot part 26 is extended to near the straight part, so the ball 18 moves smoothly. The bearing body 14 moves smoothly.
ヘ 考案の効果
この考案によれば、転動体の転走をスムーズに
して軸受本体の移動を小さな力で滑らかに作用さ
せることができ、直線運動を必要とする各種機械
装置に広く応用することができ、また、蓋体を合
成樹脂を素材として形成することにより、簡単に
かつ高精度に製作することができ、高精度な直線
運動軸受を安価に提供することができる。F. Effects of the invention According to this invention, it is possible to smoothly roll the rolling elements and move the bearing body smoothly with a small force, and it can be widely applied to various mechanical devices that require linear motion. Furthermore, by forming the lid body from synthetic resin, it can be manufactured easily and with high accuracy, and a highly accurate linear motion bearing can be provided at low cost.
第１図乃至第３図は従来の直線運動軸受を示す
もので、第１図は一部を断面した正面図、第２図
は一部を断面した平面図、第３図は第１図のＡ−
Ａ線に於ける縦断面図である。第４図は従来の蓋
体の側面図、第５図は第４図のＢ−Ｂ線に於ける
縦断面図、第６図は反転中子の斜視図である。第
７図はこの考案に係る直線運動軸受の一例を示す
一部を断面した正面図である。第８図はこの考案
に係る蓋体の分解斜視図、第９図は第８図の要部
拡大図である。
１２……軌道レール、１３……転走溝、１４…
…軸受本体、１５……転走溝、１６……返還穴、
１７……蓋体、１８……ボール、１９……ボール
反転部、２２……内蓋、２５……外蓋、２６……
雄型のインロー部、２７……雌型のインロー部。
Figures 1 to 3 show conventional linear motion bearings, with Figure 1 being a partially sectional front view, Figure 2 being a partially sectional plan view, and Figure 3 being the same as Figure 1. A-
It is a longitudinal cross-sectional view in the A line. FIG. 4 is a side view of a conventional lid body, FIG. 5 is a longitudinal sectional view taken along line B--B in FIG. 4, and FIG. 6 is a perspective view of an inverted core. FIG. 7 is a partially sectional front view showing an example of the linear motion bearing according to this invention. FIG. 8 is an exploded perspective view of the lid according to this invention, and FIG. 9 is an enlarged view of the main part of FIG. 8. 12... Track rail, 13... Rolling groove, 14...
... Bearing body, 15 ... Rolling groove, 16 ... Return hole,
17... Lid body, 18... Ball, 19... Ball reversal part, 22... Inner lid, 25... Outer lid, 26...
Male type spigot part, 27...female type spigot part.
Claims (1)
軌道レールと、内周面に前記軌道レールの転走溝
に夫々対応させて転走溝を長手方向に形成し、か
つ、該転走溝と所定の間を隔てた隣接部位に両端
面に貫通したボール返還穴を形成した軸受本体
と、前記軸受本体の両端面に取付固定され、か
つ、前記転走溝とボール返還穴とを連絡する円弧
状をしたボール返還路を有する蓋体と、前記軌道
レールの転走溝、軸受本体の転走溝及びボール返
還穴、蓋体のボール反転路に配列保持したボール
とよりなり、前記軌道レール上に前記ボールを介
して前記軸受本体を摺動自在に跨架した直線運動
軸受に於いて、上記蓋体をボールの反転内径側案
内となる転走面を有する内蓋とボールの反転外径
側案内となる転走面を有する外蓋とで構成し、前
記内蓋と外蓋とを重合組合せて前記両転走面によ
りボール反転路を形成し、かつ、前記内蓋と外蓋
の重合面に上記反転用転走面部分を突出させて形
成した位置決め用のインロー部を設けたことを特
徴とする直線運動軸受。 A track rail having rolling grooves formed in the longitudinal direction on an upper surface and both side surfaces, and rolling grooves formed in the longitudinal direction on an inner circumferential surface corresponding to the rolling grooves of the track rail, and the rolling grooves. a bearing body having a ball return hole penetrating through both end faces formed in an adjacent portion separated by a predetermined distance from the bearing body; and a bearing body that is attached and fixed to both end faces of the bearing body, and that communicates the rolling groove and the ball return hole. The track rail includes a lid body having an arc-shaped ball return path, a rolling groove of the track rail, a rolling groove and a ball return hole of the bearing body, and balls arranged and held in the ball reversing path of the lid body. In a linear motion bearing in which the bearing body is slidably straddled over the bearing body through the ball, the lid body is connected to an inner lid having a rolling surface that guides the ball on the inverted inner diameter side, and an inverted outer diameter of the ball. an outer cover having a raceway surface serving as a side guide; the inner cover and the outer cover are combined in an overlapping manner to form a ball reversal path by both the raceway surfaces; and the inner cover and the outer cover are overlapped. A linear motion bearing characterized in that a spigot part for positioning is provided on the surface by protruding the above-mentioned rolling surface portion for reversal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16317583U JPS6069823U (en) | 1983-10-20 | 1983-10-20 | linear motion bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16317583U JPS6069823U (en) | 1983-10-20 | 1983-10-20 | linear motion bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6069823U JPS6069823U (en) | 1985-05-17 |
| JPS636503Y2 true JPS636503Y2 (en) | 1988-02-24 |
Family
ID=30358118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16317583U Granted JPS6069823U (en) | 1983-10-20 | 1983-10-20 | linear motion bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6069823U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5812716B2 (en) * | 1975-10-09 | 1983-03-09 | 株式会社東芝 | She's He Tano Seizou Hohou |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5847307Y2 (en) * | 1981-07-17 | 1983-10-28 | 日本トムソン株式会社 | Raceway plate holder for linear motion ball bearings |
-
1983
- 1983-10-20 JP JP16317583U patent/JPS6069823U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5812716B2 (en) * | 1975-10-09 | 1983-03-09 | 株式会社東芝 | She's He Tano Seizou Hohou |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6069823U (en) | 1985-05-17 |
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