JPS6335505U

JPS6335505U -

Info

Publication number: JPS6335505U
Application number: JP12870986U
Authority: JP
Priority date: 1986-08-23
Filing date: 1986-08-23
Publication date: 1988-03-07

Description

[Brief explanation of the drawing]

第１図ないし第５図は本考案の一実施例を示す
図であつて、第１図はその側面図、第２図はその
軸線方向先端視図、第３図はそのスローアウエイ
チツプを示す平面図、第４図はそのチツプ座を示
す平面図、第５図はそのスローアウエイチツプの
チツプ座への装着状態を示す平面図、第６図ない
し第１０図は従来のスローアウエイ式ボーリング
バーの一例を示す図であつて、第６図はその側面
図、第７図はその軸線方向先端視図、第８図はそ
のスローアウエイチツプを示す平面図、第９図は
そのチツプ座を示す平面図、第１０図および第１
１図はそのスローアウエイチツプのチツプ座への
装着状態を示す平面図である。１３……工具本体、１５……チツプ座、１７…
…スローアウエイチツプ、１９……鋭角コーナー
部、２１……鈍角コーナー部、３５……第１のチ
ツプ側面（チツプ側面）、３７……第２のチツプ
側面（チツプ側面）、４１……スローアウエイ式
ボーリングバー（スローアウエイ式切削工具）、
４３……第１のチツプ座側壁（チツプ座側壁）、
４５……第２のチツプ座側壁（チツプ座側壁）。 1 to 5 are views showing an embodiment of the present invention, in which FIG. 1 is a side view thereof, FIG. 2 is a view from the tip in the axial direction, and FIG. 3 is a throwaway tip thereof. A plan view, FIG. 4 is a plan view showing the chip seat, FIG. 5 is a plan view showing the throw-away chip attached to the chip seat, and FIGS. 6 to 10 are a conventional throw-away type boring bar. FIG. 6 is a side view of an example, FIG. 7 is a view from the tip in the axial direction, FIG. 8 is a plan view showing the throw-away tip, and FIG. 9 is a tip seat. Plan view, Figure 10 and Figure 1
FIG. 1 is a plan view showing the state in which the throw-away chip is attached to the chip seat. 13... Tool body, 15... Chip seat, 17...
...Throwaway chip, 19...Acute corner part, 21...Btuse corner part, 35...First chip side (chip side), 37...Second chip side (chip side), 41...Throwaway type boring bar (throw-away type cutting tool),
43...first chip seat side wall (chip seat side wall),
45...Second chip seat side wall (chip seat side wall).

Claims

[Scope of utility model registration request]

At the tip of the tool body, there are two adjacent to each other forming an obtuse angle.
A chip seat having two chip seat side walls is provided;
On this chip seat, there is a throwaway chip which has a hexagonal shape in plan view and has acute corner parts forming an acute angle and obtuse corner parts forming an obtuse angle alternately in the circumferential direction. In a throw-away cutting tool mounted with the side walls of the two chips sandwiched in contact with the side walls of the two chip seats, the angle formed by the side walls of the two chip seats is determined by the angle between the side walls of the two chips sandwiching the obtuse corner. A throw-away cutting tool characterized in that the cutting tool is cut at an angle 0.5% to 2% smaller than the cutting angle.