JPS6232718U

JPS6232718U -

Info

Publication number: JPS6232718U
Application number: JP12480985U
Authority: JP
Priority date: 1985-08-14
Filing date: 1985-08-14
Publication date: 1987-02-26
Also published as: JPH0135776Y2

Description

[Brief explanation of the drawing]

第１図〜第９図はこの考案のスローアウエイ式
転削工具の第一実施例を示すもので、第１図は全
体の正面図、第２図は同側面図、第３図は同底面
図、第４図は上記実施例の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５図
は同側面図、第６図は同底面図、第７図は上記ス
ローアウエイチツプの上面の形状を示す概略斜視
図、第８図は上記スローアウエイチツプの回転軌
跡を示す正面図、第９図は同側面図、第１０図〜
第１８図はこの考案の第二実施例を示すもので、
第１０図は全体の正面図、第１１図は同底面図、
第１２図は上記実施例の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１３図
は同側面図、第１４図は第１２図の基準線Ｘ_２に
おける断面図、第１５図は第１２図の基準線Ｙ_２における断面図、第１６図は同底面、第１７図は
上記スローアウエイチツプの回転軌跡を示す正面
図、第１８図は同側面図、第１９〜第２１図はそ
れぞれこの考案の他の実施例を示すもので、各々
装着されているスローアウエイチツプの回転軌跡
を示す正面図、第２２図〜第３１図は従来のスロ
ーアウエイ式転削工具を示すもので、第２２図は
全体の正面図、第２３図は同側面図、第２４図は
第２２図のＰ_１―Ｐ_１線視断面図、第２５図は第
２２図のＰ_２―Ｐ_２線視断面図、第２６図は上記
従来の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２７図は同側面図、第２
８図は第２６図のＰ_３―Ｐ_３線視断面図、第２９
図は第２６図のＰ_４―Ｐ_４線視断面図、第３０図
は上記スローアウエイチツプの回転軌跡を示す正
面図、第３１図は同側面図である。１，２９……工具本体、６，２１，３４……上
面、４ａ，４ｂ，３２ａ，３２ｂ……チツプ取付
座、５，２０，３３，４１，４３，４６……スロ
ーアウエイチツプ、８，２２，３５，４２，４４
，４５……主切刃、１０，２６……切刃先端、１
１，２７，３７……切刃後端、１２，２４，３９
……すくい面、θ_１，θ_２，θ_３，θ_４……接線
角。 Figures 1 to 9 show the first embodiment of the throw-away milling tool of this invention. Figure 1 is a front view of the whole, Figure 2 is a side view of the same, and Figure 3 is a bottom view of the same. 4 is a front view showing the throw-away tip installed in the milling tool of the above embodiment, FIG. 5 is a side view of the same, FIG. 6 is a bottom view of the same, and FIG. 8 is a front view showing the rotation locus of the throw-away tip, FIG. 9 is a side view of the same, and FIGS.
Figure 18 shows a second embodiment of this invention.
Figure 10 is the overall front view, Figure 11 is the bottom view,
FIG. 12 is a front view showing the throw-away tip attached to the milling tool of the above embodiment, FIG. 13 is a side view of the same, FIG. 14 is a sectional view taken along reference line _X2 in FIG. 12, and FIG. The figure is the reference line _Y2 in Figure 12. 16 is a bottom view of the same, FIG. 17 is a front view showing the rotation locus of the throw-away tip, FIG. 18 is a side view of the same, and FIGS. 19 to 21 are other embodiments of the invention. Figures 22 to 31 show conventional throw-away milling tools, and Figure 22 is a front view of the whole. , FIG. 23 is a side view of the same side, FIG. 24 is a sectional view taken along line P ₁ - P ₁ in FIG. 22, FIG. 25 is a sectional view taken along line P ₂ - P ₂ in FIG. 27 is a front view showing a throw-away tip installed in a conventional milling tool, FIG. 27 is a side view of the same, and FIG.
Figure 8 is a sectional view taken along line P ₃ - _{P 3} in Figure 26, and Figure 29.
The figures are a cross-sectional view taken along line P ₄ -P ₄ in FIG. 26, FIG. 30 is a front view showing the rotation locus of the throwaway tip, and FIG. 31 is a side view of the same. 1, 29... Tool body, 6, 21, 34... Top surface, 4a, 4b, 32a, 32b... Chip mounting seat, 5, 20, 33, 41, 43, 46... Throwaway tip, 8, 22 ,35,42,44
, 45... Main cutting edge, 10, 26... Cutting edge tip, 1
1, 27, 37... Rear end of cutting blade, 12, 24, 39
... rake face, θ ₁ , θ ₂ , θ ₃ , θ ₄ ... tangent angle.

Claims

[Scope of utility model registration request]

A main cutting edge is formed along the circumferential direction on the outer periphery of the tip of the tool body, at a ridge portion of the upper surface that exists on the outer periphery side of the tool body, and
a throw-away tip disposed on the distal end side of the tool body and having a cutting edge formed on the ridge portion disposed on the distal end side; In a throw-away milling tool in which throw-away chips having cutting edges formed on the sides are alternately and removably attached, the throw-away chips have an upper surface that intersects with the main cutting edge and In a cross-sectional view along one reference line passing through the center of the upper surface, a concave curve is drawn that is symmetrical to the center, and in a cross-sectional view along another reference line that is perpendicular to the one reference line and passes through the center of the upper surface. A throw-away milling tool characterized by being formed of a curved surface that draws a convex curve symmetrical about the center.