JPS62117003U

JPS62117003U -

Info

Publication number: JPS62117003U
Application number: JP283486U
Authority: JP
Priority date: 1986-01-13
Filing date: 1986-01-13
Publication date: 1987-07-25

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係わるスローアウエイチツプ
の一実施例を示すものでａは平面図、ｂはその側
面図及び下面図、第２図は第１図ｂに示すチツプ
の逃げ面形状の部分拡大図、第３図は本考案チツ
プを用いて穴ぐり作業をしている時の被削材との
位置関係を示す図、第４図は本考案による他の実
施例を示す逃げ面の部分拡大図、第５図は従来チ
ツプにて穴ぐり作業をしている時の被削材とスロ
ーアウエイチツプとの位置関係を示す図である。１……スローアウエイチツプ、２……すくい面
、３……逃げ面、４……チツプ下面、Ｐ……切れ
刃、ｌ……平面の逃げ面幅。 Fig. 1 shows an embodiment of the throw-away tip according to the present invention, in which a is a plan view, b is a side view and a bottom view thereof, and Fig. 2 is a portion of the flank shape of the tip shown in Fig. 1b. An enlarged view, FIG. 3 is a diagram showing the positional relationship with the workpiece during drilling work using the tip of the present invention, and FIG. 4 is a part of the flank showing another embodiment of the present invention. The enlarged view of FIG. 5 is a diagram showing the positional relationship between the workpiece and the throw-away tip when drilling with a conventional tip. 1... Throwaway tip, 2... Rake face, 3... Flank surface, 4... Chip bottom surface, P... Cutting edge, l... Flat flank width.

Claims

【実用新案登録請求の範囲】１チツプ上面とそれより小さな下面とこれら上
面と下面を結ぶ側面とを有し、前記上面と前記側
面との交線が切れ刃を形成するスローアウエイチ
ツプにおいて、前記切れ刃に直角に交わる平面に
おける側面の断面形状が凸曲線、又は切れ刃側の
直線と下面側の凸曲線との滑らかな結合線によつ
て形成されていることを特徴とするスローアウエ
イチツプ。２前記側面の断面形状において、切れ刃におけ
る凸曲線の接線、又は切れ刃側の直線の傾きがチ
ツプ上面の垂線に対して５°〜１５°であること
を特徴とする実用新案登録請求の範囲第１項記載
のスローアウエイチツプ。[Claims for Utility Model Registration] 1. A throw-away chip having an upper surface, a lower surface smaller than the upper surface, and a side surface connecting these upper and lower surfaces, and a line of intersection between the upper surface and the side surface forming a cutting edge, A throw-away tip characterized in that the cross-sectional shape of the side surface in a plane perpendicular to the cutting edge is formed by a convex curve, or a smooth connecting line between a straight line on the cutting edge side and a convex curve on the lower surface side. 2. A utility model registration claim characterized in that in the cross-sectional shape of the side surface, the tangent to the convex curve at the cutting edge or the inclination of the straight line on the cutting edge side is 5° to 15° with respect to the perpendicular to the top surface of the chip. Throwaway tip as described in item 1.