JPH01156843U - - Google Patents
Info
- Publication number
- JPH01156843U JPH01156843U JP5278788U JP5278788U JPH01156843U JP H01156843 U JPH01156843 U JP H01156843U JP 5278788 U JP5278788 U JP 5278788U JP 5278788 U JP5278788 U JP 5278788U JP H01156843 U JPH01156843 U JP H01156843U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- air
- sensor
- control valve
- air turbine
- 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
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
Landscapes
- Automatic Control Of Machine Tools (AREA)
Description
第１図は本考案の回転数検出装置を示す図、第
２図は工作物に対する刃物の係脱状態と回転数と
の関係を示す図、第３図は従来のエアスピンドル
を示す断面図、第４図は従来の工作物に対する刃
物の係脱状態と回転数との関係を示す図である。
図中、５はエアタービン、６は空気供給系、１
３は制御弁、１４は回転数検出センサ、１５は制
御手段である。
Fig. 1 is a diagram showing the rotational speed detection device of the present invention, Fig. 2 is a diagram showing the relationship between the engagement/disengagement state of the cutter with respect to the workpiece and the rotational speed, and Fig. 3 is a sectional view showing a conventional air spindle. FIG. 4 is a diagram showing the relationship between the state of engagement and disengagement of a cutter with respect to a conventional workpiece and the rotation speed. In the figure, 5 is an air turbine, 6 is an air supply system, 1
3 is a control valve, 14 is a rotation speed detection sensor, and 15 is a control means.
Claims (1)
るために接続される空気供給系に設けられ、エア
タービンに供給される空気量を調節するための制
御弁と、上記エアタービンの回転数を検出する回
転数検出センサと、該センサから得られる回転数
と予め設定された回転数とを比較してその比較値
に応じて上記制御弁の開度量を増減するための制
御手段とを備えたことを特徴とするエアスピンド
ルの回転数制御装置。 A control valve is provided in an air supply system connected to an air spindle to rotate the air turbine, and is used to adjust the amount of air supplied to the air turbine, and a rotation speed detector that detects the rotation speed of the air turbine. The present invention is characterized by comprising a sensor and a control means for comparing the rotation speed obtained from the sensor with a preset rotation speed and increasing or decreasing the opening amount of the control valve according to the comparison value. Air spindle rotation speed control device.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5278788U JPH01156843U (en) | 1988-04-21 | 1988-04-21 | |
| US07/324,149 US5020968A (en) | 1988-04-15 | 1989-03-16 | System for controlling the rotating speed of a pneumatically driven spindle |
| GB8906356A GB2218208A (en) | 1988-04-15 | 1989-03-20 | Detecting and controlling the rotational speed of a pneumatically driven spindle |
| DE3911383A DE3911383A1 (en) | 1988-04-15 | 1989-04-07 | DEVICE FOR DETECTING AND CONTROLLING THE SPEED OF A PNEUMATICALLY DRIVEN SPINDLE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5278788U JPH01156843U (en) | 1988-04-21 | 1988-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01156843U true JPH01156843U (en) | 1989-10-27 |
Family
ID=31278786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5278788U Pending JPH01156843U (en) | 1988-04-15 | 1988-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01156843U (en) |
-
1988
- 1988-04-21 JP JP5278788U patent/JPH01156843U/ja active Pending