JPH0230524U - - Google Patents
Info
- Publication number
- JPH0230524U JPH0230524U JP1988107983U JP10798388U JPH0230524U JP H0230524 U JPH0230524 U JP H0230524U JP 1988107983 U JP1988107983 U JP 1988107983U JP 10798388 U JP10798388 U JP 10798388U JP H0230524 U JPH0230524 U JP H0230524U
- Authority
- JP
- Japan
- Prior art keywords
- ball
- ball rolling
- groove
- guide rail
- wires
- 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
- 238000005096 rolling process Methods 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 230000005489 elastic deformation Effects 0.000 claims 1
- 230000036316 preload Effects 0.000 claims 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
- F16C29/064—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 two rows of balls, one on each side of the rail
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Description
第１図は本考案の一実施例の正面図でエンドキ
ヤツプを取り除いたもの、第２図は第１図の―
線断面図、第３図は同じく本考案の平面図、第
４図は従来のリニアガイド装置の部分切欠正面図
、第５図は第４図の―線断面図である。
１は案内レール、２はスライダ、２Ａはスライ
ダ本体、２Ｂはエンドキヤツプ、３は案内レール
のボール転動溝、４はスライダのボール転動溝、
５はボール戻し通路、６は湾曲路、７はボール、
２１は矩形溝、２２は溝底、２３は有効支持部、
２４はクラウン部、２５はワイヤ、２７は湾曲形
状部、２８はスペーサ、２９はボール転動軌道。
Figure 1 is a front view of one embodiment of the present invention with the end cap removed, and Figure 2 is the same as in Figure 1.
3 is a plan view of the present invention, FIG. 4 is a partially cutaway front view of a conventional linear guide device, and FIG. 5 is a sectional view taken along the line -- in FIG. 4. 1 is the guide rail, 2 is the slider, 2A is the slider body, 2B is the end cap, 3 is the ball rolling groove of the guide rail, 4 is the ball rolling groove of the slider,
5 is a ball return path, 6 is a curved path, 7 is a ball,
21 is a rectangular groove, 22 is a groove bottom, 23 is an effective support part,
24 is a crown portion, 25 is a wire, 27 is a curved portion, 28 is a spacer, and 29 is a ball rolling track.
Claims (1)
形成されて延長された案内レールと、該案内レー
ル上に軸方向に移動可能に遊嵌されると共に前記
案内レールのボール転動溝に対向するボール転動
溝を内側面に及びこれに平行するボール戻し通路
を肉厚内に設けたスライダ本体と、前記ボール戻
し通路とボール転動路とを連通せしめる半円弧状
に湾曲した湾曲路を備えてスライダ本体の端部に
接合されたエンドキヤツプと、上記対向する両ボ
ール転動溝、ボール戻し通路及び湾曲路内に転動
自在に挿入された多数のボールとを備えたリニア
ガイド装置において、 前記スライダのボール転動溝の少なくとも一方
が矩形溝からなり、該矩形溝の溝底の長さ方向に
は中央部の有効支持部を除き溝端部にかけて緩や
かに外方に湾曲させたクラウンが形成され、且つ
該クラウン形状に沿い弾性変形可能で両端部に前
記湾曲路の内周を形成する半円弧状の湾曲形状を
有する２本のワイヤをスペーサを介して上下に重
ね合わせ、それらのワイヤで前記案内レールのボ
ール転動溝に対向するボール転動軌道を構成した
ことを特徴とするリニアガイド装置。 (2) 前記ワイヤと前記矩形溝の溝底のクラウン
面との間に、前記ボールに所定量の予圧を付与し
た場合に生じるボールの弾性変形量に見合う寸法
の隙間を設けたことを特徴とする請求項(1)記載
のリニアガイド装置。[Claims for Utility Model Registration] (1) An extended guide rail with a row of axial ball rolling grooves formed on both sides, and a guide rail that is loosely fitted onto the guide rail so as to be movable in the axial direction. and a slider body having a ball rolling groove opposite to the ball rolling groove of the guide rail on the inner surface and a ball return passage parallel to the ball return passage within the wall thickness, and the ball return passage and the ball rolling passage. An end cap is connected to the end of the slider body and has a curved path curved in the shape of a semicircular arc for communication, and the end cap is rotatably inserted into the opposing ball rolling grooves, the ball return path, and the curved path. In a linear guide device equipped with a large number of balls, at least one of the ball rolling grooves of the slider is a rectangular groove, and in the length direction of the groove bottom of the rectangular groove, there are groove ends excluding an effective support portion in the center. A spacer is provided with two wires having a semi-circular curved shape that is elastically deformable along the shape of the crown and forms the inner periphery of the curved path at both ends. A linear guide device characterized in that the wires are stacked one on top of the other through wires, and these wires constitute a ball rolling track that faces the ball rolling groove of the guide rail. (2) A gap having a size corresponding to the amount of elastic deformation of the ball that occurs when a predetermined amount of preload is applied to the ball is provided between the wire and the crown surface of the bottom of the rectangular groove. The linear guide device according to claim (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988107983U JPH0620893Y2 (en) | 1988-08-17 | 1988-08-17 | Linear guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988107983U JPH0620893Y2 (en) | 1988-08-17 | 1988-08-17 | Linear guide device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0230524U true JPH0230524U (en) | 1990-02-27 |
| JPH0620893Y2 JPH0620893Y2 (en) | 1994-06-01 |
Family
ID=31342894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988107983U Expired - Lifetime JPH0620893Y2 (en) | 1988-08-17 | 1988-08-17 | Linear guide device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620893Y2 (en) |
-
1988
- 1988-08-17 JP JP1988107983U patent/JPH0620893Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0620893Y2 (en) | 1994-06-01 |