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1. 发明专利

JPS5762831A Forging die for part having reverse gradient 失效
标题翻译：锻造用于具有反向梯度的部件
公开(公告)号：JPS5762831A
公开(公告)日：1982-04-16
申请号：JP13671080
申请日：1980-10-02
申请人： Nissan Motor Co Ltd
发明人： SUZUKI HISAO
IPC分类号： B21J5/12 , B21J13/02 , B21K1/14 , B21K1/76
CPC分类号： B21J5/12 , B21J13/025 , B21K1/762 , B21K1/765
摘要： PURPOSE: To give reverse gradient accurately to a groove and, at the same time, make the inner circumference a spherical face by supporting a radially slidable liner by one die to plural grooves that have no reverse gradient ironing a material by another die.
CONSTITUTION: In manufacturing a part 1 by forging, the tip of a lock pin 11 at the center of a lower die 4 is set inside of a radial liner die 7 and covered with a preliminarily formed material 1' fitting a groove 2a to the die 7. As the groove 2a to has no reverse gradient, this fitting is easy. When an upper die is lowered, the outer circumference face 1b is ironed by a projected part 5, and reverse gradient is given accurately to the lower part of the groove 2a supported by the die 7. At the same time, the inner circumference face is formed by coining spherically. Next, when the pin 11 is lowered by a specified amount, the die 7 moves in centripetal direction being energized by a coil spring 10 and comes off from the groove 2. The part 1 is easily taken out from the die 7 by raising the die 3, and pushed out by downward movement of an eject pin.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了使凹槽精确地反向梯度，同时通过一个模具将可径向滑动的衬垫支撑在多个凹槽上，同时通过另一个模具没有反向梯度熨烫材料，使内圆周成为球面。构成：在通过锻造制造零件1时，将下模4的中心处的锁销11的前端设置在径向衬套模7的内部，并用预先形成的材料1'覆盖，模具作为槽2a不具有相反的梯度，这种配合是容易的。当上模下降时，外周面1b被突出部分5熨烫，并且对于由模具7支撑的槽2a的下部精确地给出反向梯度。同时，内周面为通过球形压印形成。接下来，当销11下降指定量时，模具7沿向心方向移动，被螺旋弹簧10激励并从槽2中脱出。部件1通过升高模具容易地从模具7中取出 3，并通过弹出销的向下移动推出。

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