JPH02110405U

JPH02110405U -

Info

Publication number: JPH02110405U
Application number: JP1799389U
Authority: JP
Priority date: 1989-02-17
Filing date: 1989-02-17
Publication date: 1990-09-04
Anticipated expiration: 2003-01-20
Also published as: JPH052246Y2

Description

[Brief explanation of drawings]

第１図は本考案に係る穴仕上げ加工用工具の一
実施例を示す正面図、第２図は第１図の右側面図
、第３図は第１図の平面図、第４図は第１図の底
面図、第５図は第４図のＤ―Ｄ線矢視断面図、第
６図は第２図のＡ―Ａ線矢視断面図、第７図は第
２図のＢ―Ｂ線矢視断面図、第８図は第２図のＣ
―Ｃ線Ｃ線矢視断面図である。第９図は第２図に
おける刃部の拡大図、第１０図は第１図における
刃部の拡大図、第１１図は本考案に係る穴仕上げ
用加工用工具の刃部のバツクテーパを説明する図
、第１２図は本考案に係る穴仕上げ加工用工具の
他の一実施例を示す正面図、第１３図は第１２図
の右側面図、第１４図は第１２図の平面図、第１
５図は第１２図の底面図、第１６図は第１５図の
Ｄ′―Ｄ′線矢視断面図、第１７図は第１３図の
Ａ′―Ａ′線矢視断面図、第１８図は第１３図の
Ｂ′―Ｂ′線矢視断面図、第１９図は第１３図の
Ｃ′―Ｃ′線矢視断面図である。１……刃部、２……シヤンク、３……首部、４
……底刃、５……周側面、６……底刃二番面、７
……底刃三番面、８……底刃のすくい面、１２…
…切り屑排出溝、ε……底刃の径方向すくい角、
φ……底刃の軸方向すくい角、γ……底刃の横逃
げ角。 Fig. 1 is a front view showing an embodiment of the hole finishing tool according to the present invention, Fig. 2 is a right side view of Fig. 1, Fig. 3 is a plan view of Fig. 1, and Fig. 4 is a top view of Fig. 1. 1 is a bottom view, FIG. 5 is a sectional view taken along line D--D in FIG. 4, FIG. 6 is a sectional view taken along line AA in FIG. B-line arrow sectional view, Figure 8 is C in Figure 2
- It is a sectional view taken along line C and arrow C. Figure 9 is an enlarged view of the blade in Figure 2, Figure 10 is an enlarged view of the blade in Figure 1, and Figure 11 explains the back taper of the blade of the hole finishing tool according to the present invention. 12 is a front view showing another embodiment of the hole finishing tool according to the present invention, FIG. 13 is a right side view of FIG. 12, and FIG. 14 is a plan view of FIG. 12, and FIG. 1
5 is a bottom view of FIG. 12, FIG. 16 is a sectional view taken along the line D'-D' in FIG. 15, FIG. 17 is a sectional view taken along the line A'-A' in FIG. 13, and FIG. The figure is a sectional view taken along the line B'-B' in FIG. 13, and FIG. 19 is a sectional view taken along the line C'-C' in FIG. 1...Blade part, 2...Shank, 3...Neck part, 4
...Bottom blade, 5...Circumferential side, 6...Bottom blade second surface, 7
...Third surface of the bottom blade, 8...Rake surface of the bottom blade, 12...
...Chip discharge groove, ε...Radial rake angle of bottom cutting edge,
φ: Axial rake angle of the bottom edge, γ: Lateral clearance angle of the bottom edge.

Claims

[Claims for Utility Model Registration] A blade portion 1 formed approximately in a cylindrical or cylindrical shape and provided at the front end of the tool; The blade part 1 includes a neck part 3 that connects the blade part 1 and the shank 2, and the blade part 1 has only a bottom edge 4 on the front end surface as a cutting edge, and the peripheral side surface 5 of the blade part 1 has a neck part 3. In a hole finishing tool with an axial back taper and a side relief angle γ of the bottom edge 4 set to approximately +0°, the chip discharge groove 12 discharges chips in the axial direction and the feed direction. A hole finishing tool, wherein the bottom blade 4 has an axial rake angle φ and a radial rake angle ε both of 0° or more.