JPH0343118U

JPH0343118U -

Info

Publication number: JPH0343118U
Application number: JP10478989U
Authority: JP
Priority date: 1989-09-06
Filing date: 1989-09-06
Publication date: 1991-04-23

Description

[Brief explanation of drawings]

第１図は本考案による直線軸受の一実施例が適
用されたマシニングセンタの正面図、第２図は第
１図に示すマシニングセンタのテーブル支持部の
−線による断面図、第３図は第２図に示すテ
ーブル支持部のガイドレール付近の拡大断面図、
第４図は第３図に示すローラガイドのケージホル
ダの側面図、第５図は第４図に示すケージホルダ
の−線による断面図、第６図は第３図に示す
ローラガイドの転動部材の平面図、第７図は第６
図に示す転動部材の正面図、第８図は第６図に示
す転動部材のローラ付近の拡大図、第９図は第８
図の矢視図、第１０図は第２図に示すテーブル
支持部のレール受けの正面図、第１１図は第１０
図に示すレール受けの矢視拡大図、第１２図
は本考案による直線軸受の別の実施例を構成する
レール受けの斜視図、第１３図は本考案による直
線軸受の更に別の実施例が適用されたマシニング
センタのテーブル支持部を示す断面図、第１４図
は来の鋼球による無限循環方式が採用された工作
機械のテーブル支持部の一例を示す断面図、第１
５図は第１４図に示すテーブル支持部を構成する
案内レールのクラウニング部付近の拡大断面図で
ある。２……第１のベアリング受け（フレーム）、５
……第１のベアリング受け（ガイドレール）、１
１……転動体（ローラ）、１２……第２のベアリ
ング受け（レール受け）、１２ｂ……転動体衝突
部（テーパ部）、２６……弾性変形部、３３……
直線軸受（テーブル支持部）、４２……転動体（
鋼球）、４５……第２のベアリング受け（案内レ
ール）、４５ａ……転動体衝突部（クラウニング
部）。 Fig. 1 is a front view of a machining center to which an embodiment of the linear bearing according to the present invention is applied, Fig. 2 is a cross-sectional view taken along the - line of the table support portion of the machining center shown in Fig. 1, and Fig. 3 is the Fig. 2 An enlarged sectional view near the guide rail of the table support part shown in
Fig. 4 is a side view of the cage holder of the roller guide shown in Fig. 3, Fig. 5 is a sectional view taken along the - line of the cage holder shown in Fig. 4, and Fig. 6 is a rolling view of the roller guide shown in Fig. 3. Plan view of the member, Fig. 7 is Fig. 6
8 is an enlarged view of the vicinity of the roller of the rolling member shown in FIG. 6, and FIG. 9 is a front view of the rolling member shown in FIG.
10 is a front view of the rail receiver of the table support part shown in FIG. 2, and FIG.
FIG. 12 is a perspective view of a rail receiver constituting another embodiment of the linear bearing according to the present invention; FIG. Fig. 14 is a sectional view showing an example of the table support part of a machine tool to which the conventional endless circulation system using steel balls is applied;
FIG. 5 is an enlarged sectional view of the vicinity of the crowning portion of the guide rail that constitutes the table support portion shown in FIG. 14. 2...First bearing receiver (frame), 5
...First bearing receiver (guide rail), 1
1... Rolling element (roller), 12... Second bearing receiver (rail receiver), 12b... Rolling element collision part (tapered part), 26... Elastic deformation part, 33...
Linear bearing (table support part), 42...Rolling element (
steel ball), 45... second bearing receiver (guide rail), 45a... rolling element collision part (crowning part).

Claims

[Claims for Utility Model Registration] It has a first bearing receiver and a second bearing receiver in which a rolling element collision part is formed, and is arranged so as to be able to freely roll between the first bearing receiver and the second bearing receiver. A linear bearing having a rolling element, wherein an elastic deformation part is formed in the rolling element collision part of the second bearing receiver in the direction in which the rolling element enters.