JPS58173418U

JPS58173418U - throw away tool

Info

Publication number: JPS58173418U
Application number: JP5066183U
Authority: JP
Inventors: 中谷　征司
Original assignee: 住友電気工業株式会社
Priority date: 1983-04-04
Filing date: 1983-04-04
Publication date: 1983-11-19
Also published as: JPS601928Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の工具を示す正面図、第２図は同上の要
部拡大正面図、第３図は工具の端面図、第４図は作用説
明用線図、第５図は穴の粗加工時の状況、第６図は穴の
仕上加工時の状況、第７図は加工物端面の切削状況であ
る。１０・・・スローアウェイチップ、１１・・・すくい面
、１２．１３，１４．１５・・・頂点（刃先）、１６゜
１７．１８．１９・・・辺（切れ刃）、２０・・・スロ
ーアウェイチップ、２１・・・すくい面、２２．２４・
・・鋭角頂点（刃先）、２３．２５・・・鈍角頂点（刃
先）、２６．　２７．　２８．　２９・・・辺（切れ刃
）、３０・・・工具本体、３１．３２・・・凹所、３３
．３４・・・ポケット、３５・・・工具の保持部。Fig. 1 is a front view showing the tool of the present invention, Fig. 2 is an enlarged front view of the main parts of the same as above, Fig. 3 is an end view of the tool, Fig. 4 is a diagram for explaining the operation, and Fig. 5 is a diagram of the hole. Fig. 6 shows the situation during rough machining, Fig. 6 shows the situation when finishing the hole, and Fig. 7 shows the cutting situation of the end face of the workpiece. 10... Indexable tip, 11... Rake face, 12.13, 14.15... Apex (cutting edge), 16° 17.18.19... Side (cutting edge), 20... Throwaway tip, 21... rake face, 22.24.
...Acute angle apex (cutting edge), 23.25... Obtuse angle apex (cutting edge), 26. 27. 28. 29...side (cutting edge), 30...tool body, 31.32...recess, 33
．． 34... Pocket, 35... Tool holding part.

Claims

[Claims for Utility Model Registration] The whole body has an S' cylindrical shape, one end of which is a holding part for attaching it to a machine, and the other end has a diamond-shaped tip and a square positive indexable tip (hereinafter referred to as a tip). In a tool that has two recesses for mounting and is used to drill a hole in a workpiece without a pilot hole: the first square tip has one vertex positioned at the axially most extreme point, and one vertex adjacent to it is located at the cutting edge. It is located on the opposite side to the above vertex across the center of rotation of the object, and the side connecting these two vertices passes through the rotation axis of the workpiece and has an inclination of 20' to 15 degrees with respect to the direction perpendicular to the rotation axis. Acts as a central cutting edge: The second diamond-shaped tip has one acute apex axially positioned 0.1 to 0 more than the most extreme apex of the first square tip.
．． 5 is located further forward (in the direction closer to the workpiece), and the radial position is located at the outermost periphery of the tool, and the first obtuse vertex adjacent to this is located slightly further forward in the axial direction than the acute vertex. It is located at the rear (away from the workpiece) and radially inside (direction close to the workpiece rotation center), and the side connecting both vertices is 20' to 15' in the direction perpendicular to the rotation axis.
The second obtuse apex of the second diamond-shaped tip is located slightly inward in the radial direction and rearward in the axial direction from the outermost acute apex; The most extreme apex of the tip is located at a distance from the center of rotation that is greater than the first obtuse apex of the second diamond-shaped tip, and the distance between the two tips is approximately 1506 to 21 in the direction of rotation.
An indexable tool characterized by being set to have a phase difference of 0'. −