JPS61138420U

JPS61138420U -

Info

Publication number: JPS61138420U
Application number: JP1898085U
Authority: JP
Priority date: 1985-02-12
Filing date: 1985-02-12
Publication date: 1986-08-28

Description

[Brief explanation of the drawing]

第１図乃至第４図はこの考案に係るプレス型の
一実施例を示すものであり、第１，２，３図はそ
れぞれ異なる状態を示す正面断面図、第４図は第
３図の―矢視半断面図、第５図はプレス加工
製品の一例としての自動車のリヤアツパパネルの
外観図、第６図は第５図のａ部分の拡大図、第７
，８図は従来のプレス型のそれぞれ異なる状態を
示す正面断面図、第９図は第７，８図のものとは
異なる従来のプレス型の正面断面図である。Ｂ_１，Ｂ_２……ビード、Ｆ……曲げフランジ部
、Ｗ……ワーク、４６……ポンチ、４６ａ……ポ
ンチの型面、４７……ブランクホルダ、４７ａ…
…ブランクホルダの上面、５４……下型、５７…
…ダイ、５７ａ……ダイの型面、６１……フロー
テイングダイ、６１ｂ……フローテイングダイの
型面、６６……上型。 1 to 4 show an embodiment of the press die according to this invention, and FIGS. 1, 2, and 3 are front sectional views showing different states, and FIG. 4 is a cross-sectional view of the press mold of FIG. 5 is an external view of a rear upper panel of an automobile as an example of a pressed product; FIG. 6 is an enlarged view of part a in FIG. 5; FIG.
, 8 are front sectional views showing different states of a conventional press die, and FIG. 9 is a front sectional view of a conventional press die different from those shown in FIGS. 7 and 8. B ₁ , B ₂ ... Bead, F ... Bending flange part, W ... Workpiece, 46 ... Punch, 46a ... Punch mold surface, 47 ... Blank holder, 47a ...
...Top surface of blank holder, 54...Lower mold, 57...
...Die, 57a... Mold surface of die, 61... Floating die, 61b... Mold surface of floating die, 66... Upper mold.

Claims

[Scope of utility model registration request]

A press mold that uses a bead formed to fix a workpiece as part of the product shape and has a bent flange part outside the bead, and includes a punch and a punch. a lower mold having a blank holder which is movable up and down on the outside of the mold and which is normally biased so that its upper surface protrudes beyond the mold surface of the punch; a die that cooperates with the punch to form the main part of the workpiece and also works with the blank holder to form a bending flange part on the outside of the main forming part of the workpiece; The mold surface is usually located protruding from the mold surface of the die,
a floating die that contacts the blank holder before the die contacts the blank holder and the punch, and cooperates with the blank holder to form a bead between the main forming portion and the bending flange portion of the workpiece; A press mold comprising: an upper mold having an upper mold;