发明名称 |
DIE FOR CUTTING AND FOR DEEP DRAWING |
摘要 |
This die is to be used in metal processing in the production of thin-wall bulky articles from sheet material. The use of the die ensures the reduction of the number of transitions at a guaranteed uniform roughness of the parts drawn. The consumption of fluids is reduced which allows installing the die in universal pressing equipment. The die consists of a fixed body to which are coaxially fixed a drawing and trimming die and in the opening of the trimming die a trimming punch is placed. The trimming punch is fixed to an upper plate and the drawing punch - to guiding columns. Both plates are interconnected by guiding columns. Under the drawing die in the body, a chamber is formed which is filled with fluid and is connected with the drawing die and with a side tank. Cams are attached to the upper plate which is pressed close to rollers attached to the body at the level of the trimming die.
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申请公布号 |
BG48355(A1) |
申请公布日期 |
1991.02.15 |
申请号 |
BG19890088568 |
申请日期 |
1989.05.25 |
申请人 |
VISSH MASHINNOÙELEKTROTEKHNICHESKI INSTITUT |
发明人 |
KOSTOV, EMIL S.;KOVACHEV, TOSHKO M. |
分类号 |
B21D22/20;(IPC1-7):B21D22/20 |
主分类号 |
B21D22/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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