JPH0179510U

JPH0179510U -

Info

Publication number: JPH0179510U
Application number: JP1987172265U
Authority: JP
Priority date: 1987-11-11
Filing date: 1987-11-11
Publication date: 1989-05-29

Description

[Brief explanation of the drawing]

第１図ないし第６図は本考案の一実施例を示す
もので、第１図はスローアウエイ式エンドミルを
示す側面図、第２図は第１図の方向底面図、第
３図は第１図の矢印で示す部分の拡大図、第４
図はスローアウエイチツプがエンドミル本体に装
着された状態を示す第３図中矢印で示す部分の
平面図、第５図は第４図の―線断面図、第６
図は第４図の―線断面図、第７図および第８
図は上記実施例の変更例を示すもので、それぞれ
スローアウエイチツプの配置を示す側面図、第９
図および第１０図は上記実施例のさらに他の変更
例を示すもので、それぞれスローアウエイチツプ
を示す平面図、第１１図ないし第１４図は従来の
スローアウエイ式エンドミルの一例を示すもので
、第１１図はその側面図、第１２図は第１１図の
方向底面図、第１３図は第１１図の方向
側面図、第１４図は第１１図中矢印で示す
部分の拡大図である。１……エンドミル本体、２……切屑排出溝、３
……スローアウエイチツプ、４……切刃、１０…
…エンドミル本体、１１……切屑排出溝、１２…
…スローアウエイチツプ、１４……凹部、１５…
…ピン（係合部材）、１７……切刃、１８……穴
（凹部）。 Figures 1 to 6 show one embodiment of the present invention, in which Figure 1 is a side view showing a throw-away type end mill, Figure 2 is a bottom view in the direction of Figure 1, and Figure 3 is a side view showing a throw-away type end mill. Enlarged view of the part indicated by the arrow in the figure, No. 4
The figure is a plan view of the part indicated by the arrow in Figure 3 showing the throw-away tip attached to the end mill body, Figure 5 is a cross-sectional view taken along the line - - of Figure 4, and Figure 6 is a plan view of the part indicated by the arrow in Figure 3.
The figure is a cross-sectional view taken along the line -- of Figure 4, Figures 7 and 8.
The figures show a modification of the above embodiment, and include a side view showing the arrangement of the throwaway tip, and a side view showing the arrangement of the throw-away tip.
10 and 10 show still another modification of the above-mentioned embodiment, respectively, a plan view showing a throw-away tip, and FIGS. 11 to 14 show an example of a conventional throw-away end mill. 11 is a side view thereof, FIG. 12 is a bottom view in the direction of FIG. 11, FIG. 13 is a side view in the direction of FIG. 11, and FIG. 14 is an enlarged view of the portion indicated by the arrow in FIG. 11. 1... End mill body, 2... Chip discharge groove, 3
... Throwaway tip, 4... Cutting blade, 10...
...End mill body, 11...Chip discharge groove, 12...
... Throwaway tip, 14... Concavity, 15...
... Pin (engaging member), 17 ... Cutting blade, 18 ... Hole (recess).

Claims

[Scope of utility model registration request]

Multiple chip evacuation grooves are formed on the outer periphery of the cylindrical end mill body from the tip to the base end.
A throw-away machine in which a plurality of throw-away chips, which are offset from each other in the axial direction, are attached to the wall portion of each chip evacuation groove facing the rotation direction so that the cutting edges face toward the outer circumferential side and are continuous in the rotational trajectory. In the type end mill, a recessed portion recessed toward the upper surface side is formed in a lower wall portion serving as a seating surface of at least the most tip of the throwaway tips, and the end mill body includes: A throw-away end mill comprising an engaging member that engages with the recess and prevents the throw-away tip from moving toward the proximal end.