JPH0184844U - - Google Patents

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Publication number
JPH0184844U
JPH0184844U JP1987177518U JP17751887U JPH0184844U JP H0184844 U JPH0184844 U JP H0184844U JP 1987177518 U JP1987177518 U JP 1987177518U JP 17751887 U JP17751887 U JP 17751887U JP H0184844 U JPH0184844 U JP H0184844U
Authority
JP
Japan
Prior art keywords
workpiece
punch
fitted
forming
inner punch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1987177518U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987177518U priority Critical patent/JPH0184844U/ja
Publication of JPH0184844U publication Critical patent/JPH0184844U/ja
Pending legal-status Critical Current

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  • Forging (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本考案の実施例の縦断面図でaは加工
前、bは加工後を示し、第2図、第3図及び第4
図はそれぞれ参考例の縦断面図である。 W…ワーク、4…インタナル歯形、11…内パ
ンチ、12…歯形、15…外パンチ、17…ダイ
ス、20…補強リング。
FIG. 1 is a longitudinal cross-sectional view of an embodiment of the present invention, where a shows the state before processing, b shows the state after processing, and FIGS.
Each figure is a longitudinal sectional view of a reference example. W...Workpiece, 4...Internal tooth profile, 11...Inner punch, 12...Tooth profile, 15...Outer punch, 17...Dice, 20...Reinforcement ring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 外周に長手方向の歯形を設け、頂部中央に凹部
をもつ内パンチと、ワーク底面形状をもつ外パン
チとによつてカツプ状のワークを挾持し、該ワー
クをダイスに圧入してワーク内面にインタナル歯
形を形成する金型において、内パンチの頂部に設
けた開口にヤング率の大きい補強リングを嵌着し
たことを特徴とする、インタナル歯形成形用内パ
ンチ。
A cup-shaped workpiece is held between an inner punch with a longitudinal tooth profile on the outer periphery and a concave part in the center of the top, and an outer punch with a bottom shape of the workpiece, and the workpiece is press-fitted into a die and internally inserted into the inner surface of the workpiece. An inner punch for forming an internal tooth, characterized in that a reinforcing ring with a large Young's modulus is fitted into an opening provided at the top of the inner punch in a mold for forming a tooth profile.
JP1987177518U 1987-11-24 1987-11-24 Pending JPH0184844U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987177518U JPH0184844U (en) 1987-11-24 1987-11-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987177518U JPH0184844U (en) 1987-11-24 1987-11-24

Publications (1)

Publication Number Publication Date
JPH0184844U true JPH0184844U (en) 1989-06-06

Family

ID=31469179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987177518U Pending JPH0184844U (en) 1987-11-24 1987-11-24

Country Status (1)

Country Link
JP (1) JPH0184844U (en)

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