JPS6374253U

JPS6374253U -

Info

Publication number: JPS6374253U
Application number: JP16883686U
Authority: JP
Priority date: 1986-10-31
Filing date: 1986-10-31
Publication date: 1988-05-18

Description

[Brief explanation of drawings]

第１図及び第２図はそれぞれ本考案の実施例を
示す縦断側面図、第３図は従来例の縦断側面図で
ある。２……スピンドル、９……支持部材、１１……
工作機械の固定部材、１２……ストツパーピン、
２６……タツプ、２７……チヤツク（タツプ取付
部）、２９……タツプの油道、３１……ホルダー
本体、３２Ａ……歯車式逆転機構、３２Ｂ……抜
差しクラツチ、３３……被駆動軸側通油路、３４
……ホルダー本体の取付孔、３５……被駆動軸、
３６……環状油室、３７……油孔、３８，３９…
…ホルダー本体側通油路。 FIGS. 1 and 2 are vertical side views showing an embodiment of the present invention, and FIG. 3 is a vertical side view of a conventional example. 2...Spindle, 9...Support member, 11...
Machine tool fixing member, 12... stopper pin,
26...Tap, 27...Chuck (tap mounting part), 29...Tap oil pipe, 31...Holder body, 32A...Gear type reversing mechanism, 32B...Insertion/extraction clutch, 33...Driven shaft side Oil road, 34
...Mounting hole of holder body, 35...Driven shaft,
36... Annular oil chamber, 37... Oil hole, 38, 39...
...Oil passage on the holder body side.

Claims

[Scope of utility model registration request]

A holder body that has a shank part at the base end and is attached to the spindle of a machine tool via the shank part, a support member that rotatably supports the holder body via a bearing, and a gear type inside of the holder body. It can be interlocked with the holder main body through a reversing mechanism and a slide-out clutch, and is inserted into the holder body so as to be movable in the axial direction.Although it is normally in a forward rotation state, it can be changed to a neutral state and a neutral state by moving in the axial direction. In a tap holder consisting of a driven shaft that is designed to switch to a reverse rotation state and a stopper pin that holds the support member in a non-rotating state relative to a fixed member of a machine tool, the driven shaft has its base end blocked. An oil passage is provided in the central axial direction of the driven shaft, and the tip thereof is connected to the oil passage of the tap via the tap attachment part, while the base end of the holder body is provided with the spindle. An oil passage is provided that is connectable to the oil supply passage on the driven shaft side and opens into an annular oil chamber whose tip end is disposed between the outer circumferential surface of the driven shaft, and this annular oil chamber and the driven shaft side oil passage An oil supply device that constantly communicates with the driven shaft through an oil hole penetrated through the side wall of the driven shaft.