JPH0253302U

JPH0253302U -

Info

Publication number: JPH0253302U
Application number: JP13324188U
Authority: JP
Priority date: 1988-10-12
Filing date: 1988-10-12
Publication date: 1990-04-17
Anticipated expiration: 2003-10-12
Also published as: JPH065041Y2

Description

[Brief explanation of drawings]

第１図ないし第３図Ａ，Ｂは本考案の一実施例
を示す図であつて、第１図はチツプの切刃に直交
する断面を示す拡大図、第２図はチツプの平面図
、第３図Ａ，Ｂはそれぞれ第２図のＡ―Ａ，Ｂ―
Ｂ線断面図、第４図ないし第７図Ａ，Ｂは第２図
に示すチツプの変更例を示すもので、第４図はそ
の平面図、第５図Ａ，Ｂ，Ｃはそれぞれ第４図の
Ａ―Ａ，Ｂ―Ｂ，Ｃ―Ｃ線断面図、第６図はチツ
プの平面図、第７図Ａは第６図の方向側面図、
同図Ｂは同図Ａの変更例を示す側面図、第８図お
よび第９図は本考案の他の実施例を示すもので、
第８図はチツプの平面図、第９図Ａ，Ｂはそれぞ
れ第８図のＡ―Ａ，Ｂ―Ｂ線断面図、第１０図は
第８図に示すチツプの変更例を示す平面図、第１
１図Ａ，Ｂ，Ｃはそれぞれ第１０図のＡ―Ａ，Ｂ
―Ｂ，Ｃ―Ｃ線断面図、第１２図は本考案のさら
に他の実施例を示し、チツプの平面図である。１……上面（下面）、１ｂ……角部、２……側
面、３……すくい面、５……切刃、６……ネガラ
ンド、７……凸曲面、θ……傾斜角度。 1 to 3A and 3B are views showing one embodiment of the present invention, in which FIG. 1 is an enlarged view showing a cross section perpendicular to the cutting edge of the tip, FIG. 2 is a plan view of the tip, Figure 3 A and B are respectively A-A and B- of Figure 2.
4 to 7 A and B show modified examples of the chip shown in FIG. 2, FIG. 4 is a plan view thereof, and FIGS. AA, BB, CC line sectional view in the figure, Figure 6 is a plan view of the chip, Figure 7A is a side view in the direction of Figure 6,
Figure B is a side view showing a modification of Figure A, and Figures 8 and 9 show other embodiments of the present invention.
8 is a plan view of the chip, FIGS. 9A and 9B are sectional views taken along lines AA and BB in FIG. 8, respectively, and FIG. 10 is a plan view showing a modification of the chip shown in FIG. 1st
Figure 1 A, B, and C are A-A and B in Figure 10, respectively.
12 shows still another embodiment of the present invention, and is a plan view of the chip. 1...Top surface (lower surface), 1b...Corner, 2...Side surface, 3...Rake face, 5...Cutting edge, 6...Negative land, 7...Convex curved surface, θ...Inclination angle.

Claims

[Claims for Utility Model Registration] (1) It has a polygonal plate-like appearance, and a cutting edge is formed on the ridgeline of at least one of the top and bottom surfaces,
In a throwaway chip in which a negative land is formed along the ridgeline of the cutting edge and the inside of the negative land is the rake surface, the cutting edge is a honed cutting edge formed by round honing, and the intersection of the negative land and the rake surface is formed. The section is a convex curved surface with an arcuate cross section, and the radius of curvature of this convex curved surface is 0.3 mm to 0.7 mm.
Throwaway tip characterized by mm. (2) A request for registration of a utility model characterized in that the negative land has an inclination angle of 5° to 45° with respect to the upper or lower surface, and the radius of curvature of the cross section of the honing cutting edge is 0.01 mm to 0.1 mm. range 1
Throwaway tip as described in section. (3) The distance from the center of curvature of the convex curved surface to the side surface is gradually increased in the range of 0.1 mm to 1.5 mm from the corner of the upper or lower surface toward the adjacent corner. A throw-away chip according to claim 1 or 2 of the utility model registration claim. (4) According to any one of claims 1 to 3 of the utility model registration claim, wherein the inclination angle is gradually increased from the corner of the upper surface or the lower surface toward the adjacent corner. Throwaway tips listed. (5) A utility model registration claim characterized in that the distance from the center of curvature of the convex curved surface to the side surface is gradually increased from the corner of the upper or lower surface toward the adjacent corner. Throwaway tip as described in item 3. (6) The throw-away chip according to claim 4, wherein the inclination angle is gradually increased from a corner of the upper surface or the lower surface toward an adjacent corner. .