JPH0464431U

JPH0464431U -

Info

Publication number: JPH0464431U
Application number: JP10693790U
Authority: JP
Priority date: 1990-10-12
Filing date: 1990-10-12
Publication date: 1992-06-02

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す図で、グリツ
パーが切欠部に進入した状態を示す作動説明図、
第２図は同じくグリツパーが切欠部に進入する前
の状態を示す作動説明図、第３図は同じく切欠部
とグリツパーとの関係を示す要部拡大斜視図、第
４図は同じくダイとブランクホルダとでワークを
加圧拘束した状態を示す要部断面図、第５図は同
じくグリツパーの構造を示す要部斜視図、第６図
は従来のプレス成形装置の一例を示す断面図、第
７図は第６図の要部拡大斜視図、第８図は第６図
の要部拡大図、第９図は従来のプレス成形装置で
の切欠部の他の形態を示す断面図である。１……下型、２……ポンチ、３……ブランクホ
ルダ、４……ダイ（上型）、５……トランスフア
バー、１１……グリツパー、１２……傾斜面、１
４……切欠部、２３……フインガー、２５……ヒ
ンジ、２６……ヒンジピン、Ｗ……ワーク。 FIG. 1 is a diagram showing an embodiment of the present invention, and is an operational explanatory diagram showing a state in which the gripper has entered the notch;
Figure 2 is an explanatory view of the operation before the gripper enters the notch, Figure 3 is an enlarged perspective view of the main parts showing the relationship between the gripper and the notch, and Figure 4 is the die and blank holder. FIG. 5 is a perspective view of the main parts showing the structure of the gripper, FIG. 6 is a cross-sectional view showing an example of a conventional press forming apparatus, and FIG. 6 is an enlarged perspective view of the main part of FIG. 6, FIG. 8 is an enlarged view of the main part of FIG. 6, and FIG. 9 is a sectional view showing another form of the notch in a conventional press molding apparatus. 1...Lower die, 2...Punch, 3...Blank holder, 4...Die (upper die), 5...Transfer bar, 11...Gripper, 12...Slope, 1
4... Notch, 23... Finger, 25... Hinge, 26... Hinge pin, W... Work.

Claims

[Claims for Utility Model Registration] A transfer mold in which a workpiece is press-formed into a predetermined shape using an upper die and a lower die, and the workpiece after press-forming is scooped up by a gripper attached to a transfer bar and transported to the next process. In a press forming apparatus, a notch is formed in the corner of the lower die, which has an upwardly sloped surface in the direction in which the gripper enters, and which allows the fingers at the tip of the gripper to enter when transporting the workpiece after processing. A transfer type press forming device characterized in that the fingers at the tip of the gripper are configured to be rotationally displaceable in accordance with sliding contact with an inclined surface.