JPH0326419U

JPH0326419U -

Info

Publication number: JPH0326419U
Application number: JP8752689U
Authority: JP
Priority date: 1989-07-26
Filing date: 1989-07-26
Publication date: 1991-03-18
Anticipated expiration: 2004-07-26
Also published as: JPH088009Y2

Description

[Brief explanation of drawings]

第１図は、本考案正面フライス用のスローアウ
エイチツプにおける一実施例を示す正面図、第２
図は、その側面図、第３図は、底面図、第４図ａ
は、刃先部分を示す一部拡大正面図、第４図ｂは
、左斜め方向からの一部底面図、第４図ｃは、右
斜め方向からの一部底面図、第５図乃至第７図は
、本考案の正面フライス用のスローアウエイチツ
プをカツタ本体に組込んだときの図で、第５図は
、正面フライスの一部正面図、第６図は、断面図
、第７図は、一部平面図、第８図ａ〜ｄは、本考
案正面フライス用のスローアウエイチツプの変形
例を示す図で、第８図ａは、刃先部分を示す一部
拡大正面図、第８図ｂ〜ｄは、それぞれ左斜め方
向からの一部底面図、第９図は、本考案品および
従来品における欠損寿命の結果を示す特性図であ
る。１……正面フライス用のスローアウエイチツプ
、２……上面、３……下面、４……中央取付け穴
、５……傾斜側面、６……垂直側面、７，８……
傾斜段面、９ａ……正面切刃稜、９ｂ……副切刃
稜、９ｃ……主副切刃稜、１０……弧状面、１１
，１２……複数段面。 Fig. 1 is a front view showing one embodiment of the throw-away tip for face milling according to the present invention;
The figure is a side view, Figure 3 is a bottom view, and Figure 4 a.
is a partially enlarged front view showing the cutting edge portion, FIG. 4b is a partial bottom view from the diagonal left direction, FIG. 4c is a partial bottom view from the diagonal right direction, and FIGS. 5 to 7 The figure shows the throw-away tip for the face milling cutter of the present invention assembled into the cutter body. Figure 5 is a partial front view of the face milling cutter, Figure 6 is a sectional view, and Figure 7 is a cross-sectional view. , a partial plan view, and FIGS. 8a to 8d are views showing a modified example of the throw-away tip for a face milling cutter according to the present invention, and FIG. 8a is a partially enlarged front view showing the cutting edge portion. b to d are partial bottom views viewed diagonally to the left, and FIG. 9 is a characteristic diagram showing the results of loss life in the product of the present invention and the conventional product. 1...Throwaway tip for face milling, 2...Top surface, 3...Bottom surface, 4...Central mounting hole, 5...Slanted side surface, 6...Vertical side surface, 7, 8...
Inclined step surface, 9a... Front cutting edge ridge, 9b... Minor cutting edge ridge, 9c... Main/minor cutting edge ridge, 10... Arcuate surface, 11
, 12...Multi-stage surface.

Claims

[Claims for Utility Model Registration] Consisting of a substantially parallelogram plate or a substantially rhombus plate having a central mounting hole 4, one opposing side surface is smaller in size from the upper surface 2 to the lower surface 3 due to rotational symmetry. The other opposing side surface is formed as a vertical side surface 6 on the lower surface 3 side, and at the intersection with the upper surface 2,
It is provided with inclined stepped surfaces 7 and 8, and the pair of acute diagonal corners constitute the cutting edge and intersect the inclined stepped surfaces 7 and 8 and the upper surface 2.
In the throw-away tip for face milling, which forms a front cutting edge 9a, a minor cutting edge 9b, and a main and minor cutting edge 9c between them, the cutting end side of the inclined side surface 5 forms an acute angle. An arcuate surface 10 rounding the apex angle or a plurality of step surfaces 11 and 12 toward an obtuse angle are added to the apex angle, and these arcuate surfaces 10 or plural step surfaces 11,
1. A throw-away tip for face milling, characterized in that the angles of inclination β, β ₁ , β ₂ constituted by the angles of inclination 12 are smaller than the angle of inclination α of the inclined side surface 5.