JPS6446149U - - Google Patents
Info
- Publication number
- JPS6446149U JPS6446149U JP14014887U JP14014887U JPS6446149U JP S6446149 U JPS6446149 U JP S6446149U JP 14014887 U JP14014887 U JP 14014887U JP 14014887 U JP14014887 U JP 14014887U JP S6446149 U JPS6446149 U JP S6446149U
- Authority
- JP
- Japan
- Prior art keywords
- tool
- coolant
- chuck
- supply passage
- pressed
- 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
- 239000002826 coolant Substances 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 3
- 230000003578 releasing effect Effects 0.000 claims 2
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
Description
第１図〜第３図は、本考案、工作機の主軸に設
置されたクーラント洩れ防止装置の実施例を示す
。第１図は、第２逆止弁がクーラント供給通路を
開口した状態を示す断面図である。第２図は、第
２逆止弁がクーラント供給通路を閉鎖した状態を
示す断面図である。第３図は、第１図における部
分を拡大した部分拡大断面図である。第４図及び
第５図は、従来の装置を示す断面図である。
１…主軸、１１…工具保持部、１０…中心孔、
２…チヤツク、３…第１逆止弁、３５…第１付勢
部材、４…第２逆止弁、４２…第２付勢部材、５
…プツシヤーロツド、６…チヤツク操作軸。
1 to 3 show an embodiment of the present invention, a coolant leak prevention device installed on the main shaft of a machine tool. FIG. 1 is a sectional view showing a state in which the second check valve opens the coolant supply passage. FIG. 2 is a sectional view showing a state in which the second check valve closes the coolant supply passage. FIG. 3 is a partially enlarged sectional view of a portion in FIG. 1. FIGS. 4 and 5 are cross-sectional views showing conventional devices. DESCRIPTION OF SYMBOLS 1... Main shaft, 11... Tool holding part, 10... Center hole,
2...Chuck, 3...First check valve, 35...First biasing member, 4...Second check valve, 42...Second biasing member, 5
...Pusher rod, 6...Chuck operation axis.
Claims (1)
着脱自在に保持する工具保持部を形成した主軸と
、 該主軸の該中心孔内に配設され、該工具の取付
端部を把持及び把持解除するチヤツクと、 該チヤツクに把持及び把持解除作用を与え、軸
心方向にクーラント供給通路を形成するチヤツク
操作軸と、 該クーラント供給通路に配設され、該工具保持
部に装着される該工具に押圧されて、該クーラン
ト供給通路を開口する第２逆止弁とからなること
を特徴とする工作機の主軸に設置されたクーラン
ト洩れ防止装置。 (2) 第２逆止弁は、工具の端面に係合し押圧さ
れ、かつ工具のクーラント受通路と接続する接続
通路を備えた凸部をもち、該凸部と該工具の端面
との係合、押圧状態を解除した時、第２付勢部材
の付勢力によつてクーラント供給通路を閉鎖する
実用新案登録請求の範囲第１項記載の工作機の主
軸に設置されたクーラント洩れ防止装置。[Scope of Claim for Utility Model Registration] (1) A main spindle having a center hole in the axial direction and having a tool holding part formed at one end for removably holding a tool, and a main spindle disposed within the center hole of the main spindle. , a chuck for gripping and releasing the grip on the mounting end of the tool; a chuck operating shaft for applying gripping and releasing action to the chuck and forming a coolant supply passage in the axial direction; A coolant leak prevention device installed in a main shaft of a machine tool, comprising: a second check valve that opens the coolant supply passage when pressed by the tool mounted on the tool holding portion. (2) The second check valve has a convex portion that engages and is pressed by the end surface of the tool and has a connection passage that connects with the coolant receiving passage of the tool, and the convex portion engages with the end surface of the tool. The coolant leak prevention device installed in the main shaft of a machine tool according to claim 1, which closes the coolant supply passage by the biasing force of the second biasing member when the pressed state is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14014887U JPS6446149U (en) | 1987-09-14 | 1987-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14014887U JPS6446149U (en) | 1987-09-14 | 1987-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6446149U true JPS6446149U (en) | 1989-03-22 |
Family
ID=31404055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14014887U Pending JPS6446149U (en) | 1987-09-14 | 1987-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6446149U (en) |
-
1987
- 1987-09-14 JP JP14014887U patent/JPS6446149U/ja active Pending
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