JPS62174826U

JPS62174826U -

Info

Publication number: JPS62174826U
Application number: JP6319186U
Authority: JP
Priority date: 1986-04-28
Filing date: 1986-04-28
Publication date: 1987-11-06

Description

[Brief explanation of drawings]

第１図はヘリカルブローチの正面図、第２図は
ヘリカルブローチによる切削状態の説明図、第３
図はヘリカルブローチの切刃の展開図、第４図は
加工状態を示す部分切断側面図、第５図はシエル
刃の溶着状態と折損ケ所を示す部分斜視図、第６
図イはシエルの歯厚Ｔを示す切刃の斜視図、同ロ
は再研削状態の概略図である。２……歯厚方向に漸増する切刃群、１０……切
刃、α……ねじれ角、Ｓ……外径方向に歯高を漸
増する切刃群、Ｒ……外径方向に歯高を漸増する
切刃群、θＬ，θＲ……側面逃げ角。 Figure 1 is a front view of the helical broach, Figure 2 is an explanatory diagram of the state of cutting by the helical broach, and Figure 3 is a front view of the helical broach.
The figure is a developed view of the cutting blade of the helical broach, Figure 4 is a partially cutaway side view showing the processing state, Figure 5 is a partial perspective view showing the welded state of the shell blade and the broken area, and Figure 6
Figure A is a perspective view of the cutting edge showing the tooth thickness T of the shell, and Figure B is a schematic diagram of the re-ground state. 2... Cutting edge group that gradually increases in the tooth thickness direction, 10... Cutting edge, α... Helix angle, S... Cutting edge group that gradually increases the tooth height in the outer radial direction, R... Tooth height in the outer radial direction The cutting edge group gradually increases, θL, θR...side relief angle.

補正昭６１．８．１１図面の簡単な説明を次のように補正する。明細書第７頁第１５行目乃至第１６行目に「第
６図イはシエルの歯厚Ｔを示す切刃の斜視図、同
ロは再研削状態の概略図である。」とあるのを「
第６図はシエル切刃の概略を示し、同図イはシエ
ルの歯厚Ｔを示す切刃の斜視図、同図ロは再研削
状態を示す側面図である。」と訂正する。Amendment August 11, 1981 The brief description of the drawing is amended as follows. On page 7, lines 15 and 16 of the specification, it says, ``Figure 6A is a perspective view of the cutting edge showing the tooth thickness T of the shell, and Figure 6B is a schematic diagram of the re-ground state.''of"
FIG. 6 shows an outline of the shell cutting blade, and FIG. 6A is a perspective view of the cutting blade showing the tooth thickness T of the shell, and FIG. 6B is a side view showing the re-ground state. ” he corrected.

Claims

[Scope of utility model registration request]

It has a large number of cutting blades arranged at a predetermined helix angle with respect to the axis of the main body, and the cutting blades include a group of cutting blades whose tooth height gradually increases in the outer diameter direction and a cutting blade whose tooth height gradually increases in the tooth thickness direction. In a helical brooch consisting of a group,
Among the cutting edges that gradually increase in the tooth thickness direction, the side clearance angle of the rough cutting part is 30' to 55', and the side clearance angle of the finishing cutting part is 5'.
A helical brooch characterized by a length of ~20'.