JPH0247112U

JPH0247112U -

Info

Publication number: JPH0247112U
Application number: JP12370988U
Authority: JP
Priority date: 1988-09-21
Filing date: 1988-09-21
Publication date: 1990-03-30

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す主軸の断面正
面図で、ａはチヤツク側ｂはシリンダ側である。１……主軸ヘツド、２……主軸、２ａ……貫通
孔、３……チヤツク、４……ドローチユーブ、５
……シリンダ、６……ピストン、７……ドツグ、
９，９′……近接スイツチ、１０……位置決め部
材、１０ａ……ストツパ、１２……切屑除去用切
削剤噴出パイプ。 FIG. 1 is a cross-sectional front view of a main shaft showing an embodiment of the present invention, where a is the chuck side and b is the cylinder side. 1...Spindle head, 2...Spindle, 2a...Through hole, 3...Chuck, 4...Draw tube, 5
...Cylinder, 6...Piston, 7...Dog,
9, 9'... Proximity switch, 10... Positioning member, 10a... Stopper, 12... Cutting agent jetting pipe for removing chips.

Claims

[Scope of utility model registration request]

In a main shaft that is rotatably supported on the main shaft head and has a chuck attachment part at the tip of a through hole drilled along the axis of the main shaft, the chuck is slidably inserted into the through hole and one end is used to open and close the chuck at the rear of the main shaft. a draw tube connected to the piston of the cylinder for use, and whose other end is linked to the gripping mechanism of the chuck;
a dog attached to the piston of the cylinder at the rear of the draw tube; a work grip confirmation means provided on a fixed part opposite to the dog for detecting a work grip state by movement of the dog; and an inside of the draw tube. a positioning member that is inserted into the cylinder and has a stopper portion on the chuck side for axially positioning the work; a positioning member that is inserted inside the positioning member and has one end connected to the rear end of the cylinder via a rotary joint, and the other end; and a cutting agent spouting member for removing chips extending to the chuck side of the positioning member.