JPS58196019U

JPS58196019U - Throw-away end mill

Info

Publication number: JPS58196019U
Application number: JP9264082U
Authority: JP
Inventors: 博下村; 高谷　末治
Original assignee: 三菱マテリアル株式会社
Priority date: 1982-06-21
Filing date: 1982-06-21
Publication date: 1983-12-27
Also published as: JPS6140413Y2

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図ないし第５図は従来のスローアウェイ式エンドミ
ルの一例を示し、第１図はその正面図、第２図はその底
面視図、第３図は切刃チップの配置を示す展開図、第４
図は切刃チップの切削順序を示す図、第５図は切削加工
状況を示すとともに、エンドミル本体の軸線を含む半面
上における切刃チップの回転軌跡を示す図、第６図ない
し第１０図は従来のスローアウェイ式エンドミルの他の
例を示し、第６図はその一部省略正面図、第７図はその
底面視図、第８図は切刃チップの配置を示す展開図、第
９図は第４図と同様の図、第１０図は第５図と同様の図
、第１１図ないし第１５図はこの考案の一実施例を示し
、第１１図はその一部省略正面図、第１２図はその底面
視図、第１３図は切刃チップの配置を示す展開図、第１
４図は切刃チップの切削順序を示す図、第１５図は切削
加工状況を示すとともに、エンドミル本体の軸線を含む
平面上における切刃チップの回転軌跡を示す図、゛第１
６図ないし第２１図はこの考案の他の実施例を示し、第
１６図はその一部省略正面図、第１７図はその底面視図
、第１８図は第１３図と同様の図、第１９図は第１４図
と同様の図、第２０図は第１５図と同様の図、第２１図
は切削加工状況を示すとともに、シャンク側から見たと
きの切刃チップの配置を示す図である。２１・・・・・・エンドミル本体、２３・・・・・・直
線部、Ｉｗｎ、　ｍ、　ｒｖ、　Ｖ、　ＶＩ、■、■・
・・・・・切刃チップ。第１６図 ′　第１Ｔ図Figures 1 to 5 show an example of a conventional indexable end mill, with Figure 1 being a front view thereof, Figure 2 being a bottom view thereof, and Figure 3 being a developed view showing the arrangement of cutting blade tips. Fourth
The figure shows the cutting order of the cutting blade tip, Figure 5 shows the cutting process situation and shows the rotation locus of the cutting blade tip on the half plane that includes the axis of the end mill body, and Figures 6 to 10 show the cutting process. Another example of a conventional indexable end mill is shown, with Fig. 6 being a partially omitted front view, Fig. 7 being a bottom view, Fig. 8 being a developed view showing the arrangement of cutting tips, and Fig. 9. 10 is a view similar to FIG. 5, FIGS. 11 to 15 show an embodiment of this invention, and FIG. 11 is a partially omitted front view, and FIG. Figure 12 is a bottom view, Figure 13 is a developed view showing the arrangement of the cutting tips, and Figure 1.
Figure 4 is a diagram showing the cutting order of the cutting blade tip, Figure 15 is a diagram showing the cutting process situation and the rotation locus of the cutting blade tip on a plane including the axis of the end mill body.
6 to 21 show other embodiments of this invention, FIG. 16 is a partially omitted front view, FIG. 17 is a bottom view, FIG. 18 is a view similar to FIG. 13, and FIG. Figure 19 is a diagram similar to Figure 14, Figure 20 is a diagram similar to Figure 15, and Figure 21 is a diagram showing the cutting process and the arrangement of the cutting tip when viewed from the shank side. be. 21... End mill body, 23... Straight section, Iwn, m, rv, V, VI, ■, ■・
...cutting tip. Figure 16' Figure 1T

Claims

[Claims for Utility Model Registration] 1. Four or more polygonal cutting tips having a straight part and a nose part and forming an outer cutting edge are removably attached to the outer periphery of the tip of the end mill body. An indexable end mill characterized in that the cutting blade tip is arranged so as to satisfy all of the following conditions A to C. A Each cutting edge tip is offset from each other in the axial direction and circumferential direction of the end mill body. B. Each cutting edge tip has a rotation locus on a plane including the axis of the end mill main body of the linear portion on the outer circumferential side thereof, which continues in a straight line to form one outer circumferential edge. C The number of each cutting blade tip is the largest when three cutting blade tips adjacent to each other in the rotation direction are arranged from the front end to the rear end side or from the rear end side to the front end side and the rear end side. 2. Registration of a utility model characterized in that the circumferential cutting edge formed by the rotation locus has a length that is approximately equal to the sum of the lengths of the straight portions forming the circumferential cutting edge of each cutting edge tip. The indexable end mill according to claim 1. 3 The cutting blade tips are arranged so that the sum of the pitch intervals in the axial direction between the cutting blade tips adjacent in the circumferential direction is the largest, and the minimum pitch interval in the axial direction between the cutting blade tips adjacent in the circumferential direction is the largest. The indexable end mill according to claim 1 or 2 of the utility model registration claim, characterized in that the end mill is disposed in a.