JPH034316U

JPH034316U -

Info

Publication number: JPH034316U
Application number: JP5977989U
Authority: JP
Priority date: 1989-05-25
Filing date: 1989-05-25
Publication date: 1991-01-17

Description

[Brief explanation of the drawing]

第１図は、この考案に係る上・下型手段の要部
を示す拡大正面断面図、第２図は、この上・下型
手段を実施したプレス機、第３図イ〜ハは、細孔
の拡張加工工程を示す一部切断説明図、第４図は
、予じめ折曲された加工材にバーリング加工処理
を実施する説明図、第５図は、従来例を示す正面
図をそれぞれ示すものである。５……定盤、６……アジヤスター、７……弾性
ブツシユ、９……下型体、９Ｂ……型部、１０…
…押圧ガイド、２３……下型ホルダー、１６……
上型ホルダー、１７……上型体、１７Ａ……型孔
。 Fig. 1 is an enlarged front sectional view showing the main parts of the upper and lower mold means according to this invention, Fig. 2 is a press machine implementing this upper and lower mold means, and Fig. 3 FIG. 4 is a partially cut-away explanatory diagram showing the hole expansion process, FIG. 4 is an explanatory diagram showing burring performed on a pre-bent workpiece, and FIG. 5 is a front view showing a conventional example. It shows. 5... Surface plate, 6... Adjuster star, 7... Elastic bushing, 9... Lower die body, 9B... Mold section, 10...
...Press guide, 23...Lower mold holder, 16...
Upper mold holder, 17... Upper mold body, 17A... Mold hole.

Claims

[Scope of utility model registration request]

The lower mold body, which can be inserted and removed into the mold hole of the upper mold body that is vertically exchangeably hung on the upper mold holder that can be raised and lowered, is fixed to the surface plate through a removable adjuster. A press guide, which is replaceably protruded upward on the mold holder and guides the pin head and the mold part of the lower mold body so as to be retractable, is movably fitted onto the lower mold holder, and the lower mold holder is attached to an elastic bush. A burring processing device characterized in that the burring processing device is configured such that it can be biased upward.