JPS5813913U

JPS5813913U - Throw-away drilling tool

Info

Publication number: JPS5813913U
Application number: JP10828781U
Authority: JP
Inventors: 薫後藤; 高谷　末治; 修一ノ関
Original assignee: 三菱マテリアル株式会社
Priority date: 1981-07-21
Filing date: 1981-07-21
Publication date: 1983-01-28

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

[Brief explanation of the drawing]

第１図はろう付代ガンドリルを示す図で、ａはその正面
図、ｂはぞの一部省略側面図、第２図は従来の工具径調
整機構を内蔵するスローアウェイガンドリルを示す図で
、ａはその正面図、ｂはその一部省略側面図、第３図は
この考案の一実施例を示す図で、ａはその正面図、ｂは
その一部省略側面図、Ｃはその一部省略平面図、第４図
は第３図のＩＶ−ＩＶ線に沿う拡大断面図、第５図はこ
の考案の他の実施例を示す図で、ａはその正面図、ｂは
その一部省略側面図、Ｃはその一部省略平面図　　　　
゛である。２１．３１・・・・・・工具本体、２２・・・・・・切
刃チップ、２２ａ・・・・・・側面、２２ｂ・・・・・
・テーパ穴、２３・・・・・・ガイドパッド、２４・・
・・・・チップ座、２４ａ・・・・・・チップ座壁面（
内側壁）、２４ｂ・・・・・・チップ座壁面（後端壁）
、２４ｄ・・・・・・ねじ穴、２７・・・・・・締付ボ
ルト、２８・・・・・・シム、３９・・・・・・工具ヘ
ッド。Fig. 1 is a diagram showing a brazing allowance gun drill; a is a front view thereof, b is a partially omitted side view of the groove, and Fig. 2 is a diagram showing a conventional indexable gun drill with a built-in tool diameter adjustment mechanism. a is a front view thereof, b is a partially omitted side view thereof, and FIG. 3 is a diagram showing an embodiment of this invention, a is a front view thereof, b is a partially omitted side view thereof, and C is a partially omitted side view thereof. 4 is an enlarged sectional view taken along line IV-IV in FIG. 3, and FIG. 5 is a diagram showing another embodiment of the invention, where a is a front view and b is a partially omitted view. Side view, C is partially omitted plan view
It is. 21.31... Tool body, 22... Cutting blade tip, 22a... Side surface, 22b...
・Tapered hole, 23...Guide pad, 24...
...Chip seat, 24a...Chip seat wall surface (
inner wall), 24b... Chip seat wall surface (rear end wall)
, 24d...Screw hole, 27...Tightening bolt, 28...Shim, 39...Tool head.

Claims

[Scope of utility model registration request]

(1) Tool body, located at the tip of 21, tip seat bottom surface 24
C and two chip seating wall surfaces 24a, 2 that intersect with each other.
4b, a cutting edge tip 22 that is detachably attached to the tip seat 24 with a tightening bolt 27, and a guide pad 23 fixed to the outer periphery of the tip of the tool body 21. In the eight type drilling tool, one of the tip seat wall surfaces 24a and 24b runs in substantially the same direction as the axial direction of the tool body 21, and the tip seat wall surface 24a and the side surface 22a of the cutting edge tip 22 run in the axial direction. Insert a shim 28 for adjusting the cutting blade position between the
Furthermore, the shim 28 is tightened by the tightening bolt 27 using force.

(2) The tightening force used for the tightening is the screw hole 2 of the chip seat bottom surface 247 into which the tightening bolt 27 is screwed.
4d and the tightening is caused by the eccentricity between the tapered hole 22b of the cutting tip 22 pressed by the head of the bolt 27, and the tightening is the elastic restoring force of the bolt 27. The indexable hole drill described in item 1 of the scope is a tool.