JPS6265109U - - Google Patents

Description

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

第１図〜第７図はこの考案のスローアウエイ式
転削工具の第１実施例を示すもので、第１図はカ
ツタ本体にスローアウエイチツプを装着した転削
工具の底面図、第２図はその側面図、第３図は上
記転削工具に装着されているスローアウエイチツ
プを示す正面図、第４図は第３図のＡ矢視図、第
５図は第３図のＢ矢視図、第６図はスローアウエ
イチツプの加工面における回転軌跡を示す正面図
、第７図はその側面図である。第８図〜第９図は
第２実施例を示すもので、第８図は転削工具の正
面図、第９図はその底面図である。第１０図〜第
１６図は従来のスローアウエイ式転削工具を示す
もので、第１０図はカツタ本体にスローアウエイ
チツプを装着した転削工具の底面図、第１１図は
その側面図、第１２図は上記転削工具に装着され
ているスローアウエイチツプを示す正面図、第１
３図は第１２図のＣ矢視図、第１４図は第１２図
のＤ矢視図、第１５図はスローアウエイチツプの
加工面における回転軌跡を示す正面図、第１６図
はその側面図である。 ２……上面、３……稜辺部、５……下面、７…
…逃げ面、１２，４０……カツタ本体、２０……
スローアウエイチツプ、２１……すくい面、２２
……主切刃、２３……切刃中央部、２４……切刃
先端、２５……切刃後端、α……すくい角、β_１
……切刃先端角。 Figures 1 to 7 show the first embodiment of the throw-away milling tool of this invention. Figure 1 is a bottom view of the milling tool with a throw-away tip attached to the cutter body, and Figure 2 is a bottom view of the milling tool with a throw-away tip attached to the cutter body. is a side view thereof, FIG. 3 is a front view showing the throw-away tip attached to the milling tool, FIG. 4 is a view in the direction of arrow A in FIG. 3, and FIG. 5 is a view in the direction of arrow B in FIG. 3. FIG. 6 is a front view showing the rotation locus of the throw-away chip on the processing surface, and FIG. 7 is a side view thereof. 8 and 9 show a second embodiment, in which FIG. 8 is a front view of the milling tool, and FIG. 9 is a bottom view thereof. Figures 10 to 16 show conventional throw-away type milling tools. Figure 10 is a bottom view of the milling tool with a throw-away tip attached to the cutter body, Figure 11 is its side view, and Figure 11 is a side view of the milling tool. Figure 12 is a front view showing the throw-away tip attached to the above-mentioned milling tool.
3 is a view in the direction of arrow C in FIG. 12, FIG. 14 is a view in the direction of arrow D in FIG. It is. 2...Top surface, 3...Redge part, 5...Bottom surface, 7...
...Running surface, 12,40...Katsuta body, 20...
Throwaway tip, 21...rake face, 22
...Main cutting edge, 23...Center of cutting blade, 24...Tip of cutting blade, 25...Rear end of cutting blade, α...Rake angle, β ₁
...Cutting edge angle.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] カツタ本体の先端部外周に、上記の４つの稜辺
部にそれぞれ主切刃を形成するとともに上記主切
刃から着座面とされる下面に至る側面にすくい面
を形成した複数の略菱形板状のスローアウエイチ
ツプを、その該菱形面を外周側に配しかつカツタ
本体の先端側と基端側とに交互に着脱自在に装着
するようにしたスローアウエイ式転削工具におい
て、上記スローアウエイチツプは、上記主切刃に
そうすくい面を、主切刃中央における上記すくい
面間の幅寸法が主切刃の切刃先端と切刃後端とに
おけるそれぞれのすくい面間の幅寸法より大きく
なる凸曲面により形成して構成されるとともに、
カツタ本体の先端側に配されたスローアウエイチ
ツプは、鋭角状の切刃先端をカツタ本体の先端側
に、またカツタ本体の基端側に配されたスローア
ウエイチツプは、鋭角状の切刃先端をカツタ本体
の基端側にそれぞれ向けて装着されてなることを
特徴とするスローアウエイ式転削工具。 On the outer periphery of the tip of the cutter body, there are a plurality of approximately diamond-shaped plates, each having a main cutting edge on each of the four ridges, and a rake face on the side surface from the main cutting edge to the lower surface that serves as the seating surface. In a throw-away type milling tool, the throw-away tip is arranged with the diamond-shaped surface on the outer circumferential side and is detachably attached alternately to the distal end side and the proximal end side of the cutter body. is a rake face on the main cutting edge, and the width between the rake faces at the center of the main cutting edge is larger than the width between the respective rake faces at the tip and rear end of the main cutting edge. In addition to being formed by a convex curved surface,
The throw-away tip placed on the tip side of the cutter body has an acute-angled cutting blade tip on the tip side of the cutter body, and the throw-away tip placed on the proximal side of the cutter body has an acute-angled cutting edge tip. A throw-away type milling tool, characterized in that the cutter body is attached to the base end of the cutter body, respectively.