JPS6112660U - Spindle device with cutting fluid and air supply function - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は主軸前半部分９１ｔ！断面図、第２図は主軸後
半部分の縦断面図である。 ３・・・・・・主軸、４・・・・・・ドローバー、５・
曲・スリーブ、６・・・・・・油圧シリンダ、７・曲・
ピスト・ン、９・・・・・・空気用回転継手、１１・・
・・・・切削液用回転継手、１３・・・・・・皿ばね、
１７・・間コレット、１９・・曲第１弁筒、２４・・・
・・・連結筒、２６・・・・・・第２弁筒、２１， ２
８， ３３・・・・・・球体、３２・・・・・・プルス
タッド。Figure 1 shows the first half of the main shaft 91t! 2 is a longitudinal sectional view of the rear half of the main shaft. 3... Main shaft, 4... Drawbar, 5...
Song/Sleeve, 6...Hydraulic cylinder, 7/Song/
Piston, 9...Rotary joint for air, 11...
... Rotating joint for cutting fluid, 13 ... Disc spring,
17... Interval collet, 19... Curved first valve cylinder, 24...
...Connection cylinder, 26...Second valve cylinder, 21, 2
8, 33... Sphere, 32... Pull stud.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主軸に工具または工具ホルダを着脱自在に取付ける工作
機械において、前記工具または工具ホルダは刃具の方向
に向けて開口した供給路を有し主軸内に隙間を有して挿
通された工具または工具ホルダを締上げる締め上げ部材
の中心に切削液供給路が穿設され該供給路の途中に複数
個の切削液の洩れを防止するチェック弁を介在させ該締
上げ部材の後端において回転継手を介して切削液源と接
続し前記主軸及び締上げ部材の流体圧シリ，ンダ装置の
ビストレロツドと前記締上げ部ザとの間には軸方向の溝
と隙間とによって軸方向にぬける空気路が形成されその
空気路は前記ピストンロンド後端において回転継手を介
して圧力空気源と接続してなり、オイルホール工具への
切削液供給と切削部位ならびに主軸の工具装着面への圧
力空気供給とを別経路で同時に行なえるようになしたこ
とを特徴とする切削液と空気供給機能を有する主軸構造
。In a machine tool in which a tool or a tool holder is removably attached to a spindle, the tool or tool holder has a supply passage that opens toward the cutting tool, and the tool or tool holder inserted into the spindle with a gap therebetween is inserted into the spindle. A cutting fluid supply channel is drilled in the center of the tightening member to be tightened, a plurality of check valves are interposed in the middle of the supply channel to prevent leakage of cutting fluid, and a rotary joint is provided at the rear end of the tightening member. An axial groove and a gap form an axial air passage between the fluid pressure cylinder of the main shaft and the tightening member that is connected to the cutting fluid source, and the screw rod of the dauber device and the tightening part. The air passage is connected to a pressurized air source via a rotary joint at the rear end of the piston rond, and supplies cutting fluid to the oil hole tool and pressurized air to the cutting site and the tool mounting surface of the spindle through separate routes. A main shaft structure with a cutting fluid and air supply function that allows cutting to be performed at the same time.