JPH02148715U

JPH02148715U -

Info

Publication number: JPH02148715U
Application number: JP5790489U
Authority: JP
Priority date: 1989-05-19
Filing date: 1989-05-19
Publication date: 1990-12-18
Anticipated expiration: 2003-10-08
Also published as: JPH0539766Y2

Description

[Brief explanation of drawings]

添付図面第１図から第６図Ｂまでは本考案の実
施例を示し、第１図は側面から見た断面図、第２
図は第１図矢示Ｓｕから見た底面図、第３図は第
１図矢示Ｓｄから見た平面図、第４図Ａから第４
図Ｄ′までは本考案の実施例を用いた上下曲加工
の工程図であり、第４図Ａは工程Ａに於ける工程
図、第４図Ａ′は第４図Ａに対応するワークの加
工状態を示す為の工程図、第４図Ｂは工程Ｂに於
ける工程図、第４図Ｂ′は第４図Ｂに対応するワ
ークの加工状態を示す為の工程図、第４図Ｃは工
程Ｃに於ける工程図、第４図Ｃ′は第４図Ｃに対
応するワークの加工状態を示す為の工程図、第４
図Ｄは工程Ｄに於ける工程図、第４図Ｄ′は第４
図Ｄに対応するワークの加工状態を示す為の工程
図、第５図Ａ及び第５図Ｂは簡略した工程図であ
り、第５図Ａは上下曲加工前の状態のワークを示
す為の工程図、第５図Ｂは上下曲加工後の状態の
ワークを示す為の工程図、第６図Ａから第６図Ｄ
までは従来のワーク上下曲加工の工程を示す為の
簡略した工程図であり、第６図Ａは上下曲加工前
の状態のワークを示す為の工程図、第６図Ｂは第
１工程に於けるワークを示す為の工程図、第６図
Ｃは第２工程に於けるワークを示す為の工程図、
第６図Ｄは第３工程に於けるワークを示す為の工
程図、である。尚図中、１……ワーク、１ａ……ワークの上面
、１ｂ……ワークの下面、２……中央部、３……
上曲部、４……下曲部、１０……上曲ダイ、１１
……ノツクアウト・下曲ダイ、１２……上曲パン
チ、１３……下曲パンチ、１４……下曲パンチ上
下動用カム、１６……支点当接面、３８……支点
、３９……力点、４０……作用点、矢示Ｄ……上
曲パンチによる下降、矢示Ｄ′……下曲パンチの
下降、矢示Ｐ１……上曲加工による応力、矢示Ｐ
２……下曲加工による応力、間隔△Ｄ……上曲パ
ンチによる上下動幅、間隔△Ｄ′……下曲パンチ
による上下動幅、をそれぞれ示す。 The attached drawings from FIG. 1 to FIG. 6B show embodiments of the present invention, in which FIG. 1 is a cross-sectional view seen from the side, and FIG.
The figure is a bottom view seen from the arrow Su in Figure 1, Figure 3 is a top view seen from the arrow Sd in Figure 1, and Figure 4 is a bottom view seen from the arrow Su in Figure 1.
Figures up to Figure D' are process diagrams of vertical bending using the embodiment of the present invention, Figure 4A is a process diagram of process A, and Figure 4A' is a diagram of the workpiece corresponding to Figure 4A. A process diagram to show the machining state, Fig. 4B is a process diagram in process B, Fig. 4B' is a process diagram to show the machining state of the workpiece corresponding to Fig. 4B, Fig. 4C is a process diagram for process C, FIG. 4 C' is a process diagram for showing the machining state of the workpiece corresponding to FIG.
Figure D is a process diagram for process D, and Figure 4 D' is the process diagram for process D.
Figure D is a process diagram to show the machining state of the workpiece, Figures 5A and 5B are simplified process diagrams, and Figure 5A is a process diagram to show the workpiece before vertical bending. Process diagram, Figure 5B is a process diagram to show the workpiece after vertical bending process, Figure 6A to Figure 6D
The above are simplified process diagrams to show the conventional process of vertically bending a workpiece, Figure 6A is a process diagram to show the workpiece before vertically bending process, and Figure 6B is a process diagram for the first process. A process diagram to show the work in the second process, Figure 6C is a process diagram to show the work in the second process,
FIG. 6D is a process diagram showing the workpiece in the third step. In the figure, 1...workpiece, 1a...top surface of workpiece, 1b...bottom surface of workpiece, 2...center part, 3...
Upper curved part, 4... Lower curved part, 10... Upper curved die, 11
... Knock-out/downward bending die, 12 ... Upward bending punch, 13 ... Downward bending punch, 14 ... Downward bending punch vertical movement cam, 16 ... Fulcrum contact surface, 38 ... Fulcrum, 39 ... Point of force, 40... point of action, arrow D... descending by the upward bending punch, arrow D'... descending by the downward bending punch, arrow P1... stress due to upward bending processing, arrow P
2: stress due to downward bending, interval ΔD: vertical movement width due to upward bend punch, interval ΔD': vertical movement width due to downward bend punch, respectively.

補正平１．１０．１９図面の簡単な説明を次のように補正する。明細書第３０頁第２行から第１４行の「第４図
Ａから第４図Ｄ′までは本考案の実施例…第４図
Ｄに対応するワークの加工」を次の通り補正する
。「第４図Ａは工程Ａに於ける工程図、第７図Ａ
は第４図に対応するワークの加工状態を示す為の
工程図、第４図Ｂは工程Ｂに於ける工程図、第７
図Ｂは第４図Ｂに対応するワークの加工状態を示
す為の工程図、第４図Ｃは工程Ｃに於ける工程図
、第７図Ｃは第４図Ｃに対応するワークの加工状
態を示す為の工程図、第４図Ｄは工程Ｄに於ける
工程図、第７図Ｄは第４図Ｄに対応するワークの
加工」。Amendment October 19, 1999 The brief description of the drawings is amended as follows. ``FIGS. 4A to 4D' are examples of the present invention...machining of a workpiece corresponding to FIG. 4D'' on page 30, lines 2 to 14 of the specification is corrected as follows. "Figure 4 A is a process diagram for process A, Figure 7 A
is a process diagram showing the machining state of the workpiece corresponding to Figure 4, Figure 4B is a process diagram for process B, and Figure 7
Figure B is a process diagram showing the machining state of the workpiece corresponding to Figure 4B, Figure 4C is a process diagram of process C, and Figure 7C is the machining state of the workpiece corresponding to Figure 4C. Figure 4D is a process diagram for process D, and Figure 7D is a workpiece processing diagram corresponding to Figure 4D.

Claims

[Claims for Utility Model Registration] When one of the two surfaces of a plate-shaped workpiece is the upper surface on the upper side and the other surface is the lower surface on the lower side, one end of the surface of the workpiece in a predetermined direction The upper curved part of the side is bent upwardly with respect to the central part between the upper curved part and the lower curved part, and the lower curved part of the other end side in the predetermined direction is bent with respect to the central part. In a press die of a press device for press-working the workpiece so as to bend the workpiece upward and downward by bending the workpiece downward; An upward bending die 10 for upwardly bending the upper curved portion 3 of the workpiece 1 together with a bending punch 12, and a predetermined vertical movement width Δ with respect to the upward bending die 10 at the position of the central portion 2 of the workpiece 1. an upwardly curved punch 12 for upwardly bending the upper curved portion 3 of the workpiece 1 by forcing the center portion 2 of the workpiece 1 from above and lowering it D; While urging the center part 2 of the workpiece 1 from below,
a knockout/downward bending die 11 for making it possible to perform upward and downward bending of the workpiece by being biased by the upward bending punch 12 and lowering D together with the central portion 2 of the workpiece 1; At the position of the lower curved portion 4 of the workpiece 1, the upper curved punch 12
is lowered D to perform the upward bending process on the upper curved portion 3 of the workpiece 1, and at the same time is lowered D', and has a vertical movement width ΔD' larger than the vertical movement width ΔD of the upward bending punch 12. The lower bending punch 13 is moved up and down with respect to the upper bending die 10 so as to move downward D', thereby pressing the lower bending part 4 of the workpiece 1 from above to perform a downward bending process. It has a lower curved punch vertical movement mechanism for vertically moving the curved punch 13 to lower D' with a vertical motion width ΔD' larger than the vertical motion width ΔD of the upper curved punch 12. This press mold is capable of vertically moving the workpiece 1 to perform upward bending and downward bending at the same time. The lower bending punch vertical movement mechanism includes a force point 40 that is moved up and down together with the upper bending punch 12, and a fulcrum 38 that is brought into contact with a fulcrum contact surface 16 whose position is fixed with respect to the upper bending die 10. The lower part is provided on the opposite side of the fulcrum 38 with the force point 40 in the center, and has a point of action 39 for urging the lower punch 13 downward as the upper punch 12 descends D. Curved punch vertical movement cam 14
A press mold for vertical bending processing, characterized by comprising: