Inside-outside punching die for shell parts
The invention provides an inside-outside punching die for shell parts. The inside-outside punching die comprises a die shank, an upper die holder and a lower die holder, wherein the die shank vertically penetrates through and is fixedly arranged in the upper die holder; the upper die holder and the...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides an inside-outside punching die for shell parts. The inside-outside punching die comprises a die shank, an upper die holder and a lower die holder, wherein the die shank vertically penetrates through and is fixedly arranged in the upper die holder; the upper die holder and the lower die holder are overlapped on vertical projection; a female die plate is fixedly arranged at the bottom of the upper die holder; a male die plate is fixedly arranged on the lower die holder and is provided with a stripper plate; the female die plate is internally provided with female die plate edges; the male die plate is internally provided with male die plate edges; the shape of the male die plate edges is matched with that of the female die plate edges; a guide sleeve is vertically arranged between the upper die holder and the lower die holder for guiding; a third inner guiding post is vertically arranged between the male die plate and the female die plate for guiding, The parts produced by the inside-outsi |
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