JPS63201019U

JPS63201019U -

Info

Publication number: JPS63201019U
Application number: JP9375887U
Authority: JP
Priority date: 1987-06-18
Filing date: 1987-06-18
Publication date: 1988-12-26

Description

[Brief explanation of the drawing]

第１図ａは、本考案スローアウエイ式歯切りカ
ツタの実施例を示す要部の正面図、第１図ｂは、
切削軌跡上での各チツプの配置を表わす概念図、
第２図乃至第４図はそれぞれ第１図ａ中の―
線、―線、―線に沿つて得られる拡大断
面図、第５図および第６図は、歯腹部あるいは歯
腹部と面取部の切削用スローアウエイチツプの変
形例を説明するためのカツタ本体外周部へ固定し
た拡大正面図と拡大断面図、第７図は歯底部切削
用スローアウエイチツプを丸チツプで構成した説
明図である。１……円盤状カツタ本体、５……歯底部切削用
スローアウエイチツプ、６……面取部切削用スロ
ーアウエイチツプ、７……歯腹部切削用スローア
ウエイチツプ、８……止ネジ、９，１１，１４…
…切刃稜、１５……歯腹面取部兼用スローアウエ
イチツプ、１５′……歯腹部切削用スローアウエ
イチツプ、１６……歯底部切削用丸チツプ。 Fig. 1a is a front view of the main parts showing an embodiment of the throw-away gear cutter of the present invention, and Fig. 1b is a
A conceptual diagram showing the placement of each chip on the cutting path,
Figures 2 to 4 are shown in Figure 1a, respectively.
The enlarged cross-sectional views taken along the line, - line, - line, FIGS. 5 and 6, are cutter bodies for explaining modified examples of the throw-away tip for cutting tooth flanks or tooth flanks and chamfered parts. An enlarged front view and an enlarged sectional view fixed to the outer circumferential portion, and FIG. 7 are explanatory views of a throw-away tip for cutting the tooth root formed of a round tip. 1... Disc-shaped cutter body, 5... Throwaway tip for cutting the tooth bottom, 6... Throwaway tip for cutting the chamfer, 7... Throwaway tip for cutting the tooth flank, 8... Set screw, 9, 11,14...
...Cutting edge ridge, 15... Throwaway tip that also serves as the tooth flank chamfer, 15'... Throwaway tip for cutting the tooth flank, 16... Round tip for cutting the tooth bottom.

Claims

[Claims for Utility Model Registration] (1) A disc-shaped cutter body whose outer periphery has a cross-sectional shape that is substantially the same as the tooth groove shape of a gear having an involute tooth profile, and a tooth bottom, a tooth abdomen, and a tooth tip portion of the tooth groove. In a throw-away type gear cutter in which a plurality of throw-away tips are removably fixed to cut each of the tooth tip chamfered portions connected to the cutter body, the plurality of throw-away tips that share the cut of the tooth bottom portion are attached to the outer periphery of the cutter body. A plurality of throw-away tips are arranged in a staggered manner in the area, and a plurality of throw-away tips that cut at least the tooth flanks are respectively arranged so that a pair of cutting blades that simultaneously cut the left and right tooth flanks exist in the same plane. A throw-away type gear cutter characterized in that the number of throw-away chips that are installed to cut the tooth tip chamfer is smaller than the number of throw-away chips that are installed to cut the tooth bottom and tooth flank, respectively. (2) The scope of the utility model registration claim, characterized in that the throw-away chip that cuts the tooth tip chamfer is integrally formed with a part of the plurality of throw-away chips that cut the flanks of the tooth. The throw-away gear cutter described in item 1.