JPH0457348U - - Google Patents
Info
- Publication number
- JPH0457348U JPH0457348U JP10144490U JP10144490U JPH0457348U JP H0457348 U JPH0457348 U JP H0457348U JP 10144490 U JP10144490 U JP 10144490U JP 10144490 U JP10144490 U JP 10144490U JP H0457348 U JPH0457348 U JP H0457348U
- Authority
- JP
- Japan
- Prior art keywords
- main shaft
- bearing member
- cylinder chamber
- thrust bearing
- journal 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.)
- Granted
Links
- 230000010355 oscillation Effects 0.000 claims 1
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Description
第１図は本考案の実施例を示す主軸装置の断面
図である。
１０……主軸ヘツド、１１……主軸、１３，１
４……ジヤーナル軸受部材、１９……スラスト軸
受部材、１９Ａ……ピストン部、２７……スプリ
ング、２８……シリンダ室。
FIG. 1 is a sectional view of a spindle device showing an embodiment of the present invention. 10...Spindle head, 11...Spindle, 13,1
4... Journal bearing member, 19... Thrust bearing member, 19A... Piston portion, 27... Spring, 28... Cylinder chamber.
Claims (1)
わりに回転可能に支持される主軸と、前記主軸ヘ
ツドに装着され前記主軸を回転可能に支持する上
下一対のジヤーナル軸受部材と、この一体のジヤ
ーナル軸受部材の間において前記主軸ヘツドに主
軸の軸線方向に摺動可能に嵌挿され前記主軸をス
ラスト方向に支持するスラスト軸受部材とを備え
、前記下方のジヤーナル軸受部材の外周に環状の
シリンダ室を設け、このシリンダ室に前記スラス
ト軸受部材の下方に形成した環状のピストン部を
摺動可能に嵌合させ、前記上方のジヤーナル軸受
部材と前記スラスト軸受部材との間にスラスト軸
受部材を常時下方向に付勢するスプリングを配置
し、前記シリンダ室に圧油を間欠的に供給する圧
油供給手段を設けたことを特徴とするオシレーシ
ヨン機構を備えた主軸装置。 a main shaft head, a main shaft rotatably supported by the main shaft head around a vertical axis, a pair of upper and lower journal bearing members attached to the main shaft head and rotatably supporting the main shaft, and this integrated journal bearing member. a thrust bearing member that is slidably inserted into the main shaft head in the axial direction of the main shaft and supports the main shaft in the thrust direction; an annular cylinder chamber is provided on the outer periphery of the lower journal bearing member; An annular piston portion formed below the thrust bearing member is slidably fitted into this cylinder chamber, and the thrust bearing member is always attached downward between the upper journal bearing member and the thrust bearing member. What is claimed is: 1. A spindle device equipped with an oscillation mechanism, characterized in that a spring is disposed to bias the cylinder chamber, and pressure oil supply means is provided for intermittently supplying pressure oil to the cylinder chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10144490U JP2519196Y2 (en) | 1990-09-27 | 1990-09-27 | Spindle device with oscillation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10144490U JP2519196Y2 (en) | 1990-09-27 | 1990-09-27 | Spindle device with oscillation mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0457348U true JPH0457348U (en) | 1992-05-18 |
| JP2519196Y2 JP2519196Y2 (en) | 1996-12-04 |
Family
ID=31844898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10144490U Expired - Lifetime JP2519196Y2 (en) | 1990-09-27 | 1990-09-27 | Spindle device with oscillation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519196Y2 (en) |
-
1990
- 1990-09-27 JP JP10144490U patent/JP2519196Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2519196Y2 (en) | 1996-12-04 |