JPH01149246U - - Google Patents
Info
- Publication number
- JPH01149246U JPH01149246U JP4517388U JP4517388U JPH01149246U JP H01149246 U JPH01149246 U JP H01149246U JP 4517388 U JP4517388 U JP 4517388U JP 4517388 U JP4517388 U JP 4517388U JP H01149246 U JPH01149246 U JP H01149246U
- Authority
- JP
- Japan
- Prior art keywords
- spindle
- displacement
- pressure
- pressurizing means
- displacement sensor
- 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.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Turning (AREA)
- Automatic Control Of Machine Tools (AREA)
Description
図面は本考案の実施例を示し、第１図は静圧軸
受への適用例を示す断面構成図、第２図はころが
り軸受への適用例を示す断面構成図である。
１……主軸台、２……軸受金、３……主軸、１
１……スラスト軸受部を構成する円板部、１２，
１３……スラスト軸受ポケツト、２２……環体、
２３，２４……変位センサ、３１，３２……サー
ボ弁、３６……変位検出回路、３７……演算回路
、３８……制御回路、４４，４５……ピエゾアク
チユエータ、４６……電圧制御回路。
The drawings show an embodiment of the present invention; FIG. 1 is a cross-sectional configuration diagram showing an example of application to a hydrostatic bearing, and FIG. 2 is a cross-sectional configuration diagram showing an example of application to a rolling bearing. 1... Headstock, 2... Bearing metal, 3... Spindle, 1
1...A disk portion constituting a thrust bearing portion, 12,
13... Thrust bearing pocket, 22... Ring body,
23, 24... Displacement sensor, 31, 32... Servo valve, 36... Displacement detection circuit, 37... Arithmetic circuit, 38... Control circuit, 44, 45... Piezo actuator, 46... Voltage control circuit.
Claims (1)
る軸方向の変位を検出する変位センサと、 前記主軸のスラスト軸受部に軸方向に圧力を加
える加圧手段と、 前記変位センサにより検出された主軸の変位位
置が基準位置となるべく前記加圧手段の圧力を制
御する圧力制御手段と、 を備えることを特徴とする主軸変位補正装置。[Claims for Utility Model Registration] A displacement sensor that detects axial displacement of a portion of the spindle near the tool attachment position with respect to the headstock; a pressurizing means that applies pressure in the axial direction to a thrust bearing portion of the spindle; A spindle displacement correction device comprising: pressure control means for controlling the pressure of the pressurizing means so that the displacement position of the spindle detected by a displacement sensor becomes a reference position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4517388U JPH01149246U (en) | 1988-04-01 | 1988-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4517388U JPH01149246U (en) | 1988-04-01 | 1988-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01149246U true JPH01149246U (en) | 1989-10-16 |
Family
ID=31271490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4517388U Pending JPH01149246U (en) | 1988-04-01 | 1988-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01149246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012147666A (en) * | 2012-03-02 | 2012-08-02 | Nsk Ltd | Shaft direction micromotion mechanism with rolling mechanism and positioning device using the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01127254A (en) * | 1987-11-06 | 1989-05-19 | Seiko Seiki Co Ltd | Machining device having magnetic bearing in main spindle |
-
1988
- 1988-04-01 JP JP4517388U patent/JPH01149246U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01127254A (en) * | 1987-11-06 | 1989-05-19 | Seiko Seiki Co Ltd | Machining device having magnetic bearing in main spindle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012147666A (en) * | 2012-03-02 | 2012-08-02 | Nsk Ltd | Shaft direction micromotion mechanism with rolling mechanism and positioning device using the same |