JPS63202431U

JPS63202431U -

Info

Publication number: JPS63202431U
Application number: JP9393287U
Authority: JP
Priority date: 1987-06-18
Filing date: 1987-06-18
Publication date: 1988-12-27

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示すもので、第１図は
一部切欠斜視図、第２図は第１図の符号Ａにて示
す伝動装置の拡大断面図、第３図は下部プランジ
ヤの一部切欠正面図、第４図は下部プランジヤに
おける軸部が下降した状態を示す一部切欠正面図
、第５図はクランク軸の回転角度とスライドの位
置との関係の一例を示す図、第６図はクランク軸
の回転角度と上部プランジヤ、下部プランジヤの
位置との関係の一例を示す図、第７〜１３図はブ
ランク材の保持移送工程の説明図、第１４図は本
考案の他の実施例を示す一部切欠斜視図、第１５
図は第１４図における伝動装置の正面図、第１６
図は同じく側面図、第１７図は本考案の更に他に
実施例を示す一部切欠正面図である。１……クランク軸、２……機枠、２ａ……上部
フレーム、３……スライド、４……ポンチ、６…
…ボルスタ、８……ダイ、１０……フイードバー
、１２……フインガ、２４，７７，９１……上部
カム軸、３５，４７，８５，９２……揺動アーム
、３６……上部プランジヤ、３６ａ……軸部、４
３……下部カム軸、４８……下部プランジヤ、４
８ａ……軸部、５４……保持調整部、５６……弾
性部材、５８，６１，８６，９５……カム、６０
，６５，９０，９８……カム装置、６８……ブラ
ンク材。 The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway perspective view, Fig. 2 is an enlarged cross-sectional view of the transmission device indicated by reference numeral A in Fig. 1, and Fig. 3 is a part of the lower plunger. FIG. 4 is a partially cutaway front view showing the lower plunger with the shaft portion lowered; FIG. 5 is a diagram showing an example of the relationship between the rotation angle of the crankshaft and the slide position; FIG. The figure shows an example of the relationship between the rotation angle of the crankshaft and the positions of the upper plunger and the lower plunger, Figures 7 to 13 are explanatory diagrams of the blank holding and transfer process, and Figure 14 is another embodiment of the present invention. Partially cutaway perspective view showing an example, No. 15
The figures are a front view of the transmission device in Fig. 14, and a front view of the transmission device in Fig. 16.
The same figure is a side view, and FIG. 17 is a partially cutaway front view showing still another embodiment of the present invention. 1...Crankshaft, 2...Machine frame, 2a...Upper frame, 3...Slide, 4...Punch, 6...
... Bolster, 8 ... Die, 10 ... Feed bar, 12 ... Finger, 24, 77, 91 ... Upper camshaft, 35, 47, 85, 92 ... Swing arm, 36 ... Upper plunger, 36a ... ...Shaft, 4
3...Lower camshaft, 48...Lower plunger, 4
8a...Shaft part, 54...Holding adjustment part, 56...Elastic member, 58, 61, 86, 95...Cam, 60
, 65, 90, 98... cam device, 68... blank material.

Claims

[Scope of utility model registration request]

Equipped with a slide drive system using a crank mechanism,
In a transfer press, in which blanks are sequentially transferred to the next process using a feed bar equipped with fingers that grip and release the blanks, a cam device of an upper camshaft that is rotatable by a crankshaft provided in the upper frame is used to oscillate the blanks. A swinging arm is movably disposed on the upper part of the machine frame, the swinging arm is connected to an upper plunger that is loosely inserted into a punch disposed on the slide side, and a lower part is rotatable by the crankshaft. A swinging arm is arranged at the lower part of the machine frame so as to be swingable via a cam device of a camshaft, and the swinging arm is loosely inserted into a die facing the upper plunger and arranged on the bolster side. A holding adjustment part is provided in at least one of the upper plunger and the lower plunger, which is connected to the plunger and allows the shaft part to be expanded and contracted by an elastic member, and both cam devices are provided with a holding adjustment part that is connected to the upper plunger and the lower plunger after the slide passes the bottom dead center due to rotation of the crankshaft. A cam is provided between the upper plunger and the lower plunger to hold the blank material and lower it to a position where the blank material is held by the fingers, and at which the blank material is released and returned to its original position. A blank material holding device in a transfer press.