JPS6357017U

JPS6357017U -

Info

Publication number: JPS6357017U
Application number: JP15205986U
Authority: JP
Priority date: 1986-10-02
Filing date: 1986-10-02
Publication date: 1988-04-16

Description

[Brief explanation of drawings]

第１図ないし第４図は本考案の一実施例を示す
図であつて、第１図はその先端部を示す側面図、
第２図は第１図中矢印部分の拡大図、第３図は
第１図および第２図に示すエンドミルによる切削
状態を示す断面図、第４図は第２図に示すエンド
ミルの先端部の一部を変えた実施例を示す拡大図
、第５図および第６図は本考案の他の実施例を示
す図であつて、第５図はその底刃を示す拡大図、
第６図は第５図に示すエンドミルによる切削状態
を示す断面図、第７図は第５図に示すエンドミル
の先端部の一部を変えた実施例を示す拡大図、第
８図ないし第１２図は従来のエンドミルを示す図
であつて、第８図はその側面図、第９図はその軸
線方向先端視図、第１０図は第８図に示すエンド
ミルの先端を示す拡大図、第１１図は第１０図中
矢印部分の拡大図、第１２図は従来のエンド
ミルによる切削状態を示す断面図である。１３…工具本体、３１…エンドミル、３３…底
刃、３５…第１の切刃（底刃の外周側の部分）、
４１…エンドミル、４３…底刃、４５…第１の切
刃（底刃の外周側の部分）。 1 to 4 are views showing one embodiment of the present invention, in which FIG. 1 is a side view showing the tip thereof;
Fig. 2 is an enlarged view of the arrowed part in Fig. 1, Fig. 3 is a sectional view showing the state of cutting by the end mill shown in Figs. 1 and 2, and Fig. 4 is a view of the tip of the end mill shown in Fig. 2. An enlarged view showing a partially changed embodiment; FIGS. 5 and 6 are views showing other embodiments of the present invention; FIG. 5 is an enlarged view showing the bottom blade;
6 is a cross-sectional view showing the state of cutting by the end mill shown in FIG. 5, FIG. 7 is an enlarged view showing an embodiment in which a part of the tip of the end mill shown in FIG. The figures show a conventional end mill, in which FIG. 8 is a side view thereof, FIG. 9 is a view as seen from the tip in the axial direction, FIG. 10 is an enlarged view showing the tip of the end mill shown in FIG. 8, and FIG. The figure is an enlarged view of the arrowed part in FIG. 10, and FIG. 12 is a sectional view showing the state of cutting by a conventional end mill. 13... Tool body, 31... End mill, 33... Bottom blade, 35... First cutting blade (outer peripheral side part of bottom blade),
41... End mill, 43... Bottom blade, 45... First cutting blade (portion on the outer peripheral side of the bottom blade).

Claims

[Scope of utility model registration request]

An end mill in which a bottom cutter is formed at the tip of a tool body, characterized in that an outer circumferential portion of the bottom cutter is formed along a plane perpendicular to the axis of the tool body.