JPS6171306U

JPS6171306U -

Info

Publication number: JPS6171306U
Application number: JP15503284U
Authority: JP
Priority date: 1984-10-16
Filing date: 1984-10-16
Publication date: 1986-05-15

Description

[Brief explanation of the drawing]

第１図は本考案による穴加工装置の一実施例の
構造を表す断面図、第２図はその−矢視断面
図、第３図は第１図中の−矢視断面図、第４
図は第１図中の−矢視断面図である。又、図中の符号で１は主軸頭、２はスピンドル
、３は補助軸受筒、３ａはテーパ穴部、４は軸受
ブシユ、５は押しボルト、６は引きボルト、８は
中ぐりホルダ、１５は摺動ホルダ、１５ａはウオ
ームラツク、１６は切削バイト、２０はウオーム
軸、２０ａ，２１ａはウオーム、２１は操作ハン
ドル、２１は駆動軸である。 Fig. 1 is a cross-sectional view showing the structure of one embodiment of the hole drilling device according to the present invention, Fig. 2 is a cross-sectional view taken in the - arrow direction, Fig. 3 is a cross-sectional view taken in the - arrow direction in Fig. 1, and Fig. 4
The figure is a sectional view taken along the - arrow in FIG. 1. Also, in the figures, 1 is the main shaft head, 2 is the spindle, 3 is the auxiliary bearing cylinder, 3a is the tapered hole, 4 is the bearing bush, 5 is the push bolt, 6 is the pull bolt, 8 is the boring holder, 15 15a is a sliding holder, 15a is a worm rack, 16 is a cutting tool, 20 is a worm shaft, 20a and 21a are worms, 21 is an operating handle, and 21 is a drive shaft.

Claims

[Scope of utility model registration request]

The base end of an auxiliary bearing sleeve through which the spindle passes is fixed to the spindle head, and a bearing bushing that rotatably supports the spindle is fitted to the tip of the auxiliary bearing sleeve, and a bore hole holder is attached to the raw end of the spindle. is fixed thereto, and a cutter ejection mechanism is provided on the borehole holder for simultaneously displacing a plurality of cutlers protruding radially on the outer circumferential surface of the spindle in the radial direction of the spindle, and an operation handle for operating the cutter ejection mechanism is provided on the borehole holder. A hole drilling device characterized by being provided at the tip of a hole boring holder.