Blank holder structure

The utility model provides a blank holder structure. A plate piece to be formed is located between a blank holder structure body and a die. The plate piece to be formed is provided with a protrusion extending to edges after being formed. The die is provided with a protruding portion used for manufac...

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Bibliographic Details
Main Author LIU MINGSEN
Format Patent
LanguageChinese
English
Published 22.01.2014
Subjects
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Summary:The utility model provides a blank holder structure. A plate piece to be formed is located between a blank holder structure body and a die. The plate piece to be formed is provided with a protrusion extending to edges after being formed. The die is provided with a protruding portion used for manufacturing the protrusion. The blank holder structure body is provided with a notch corresponding to the protruding portion, and the notch is matched with the protruding portion. According to the blank holder structure, the forming state of the plate piece is improved, forming difficulty is reduced, and meanwhile the sizes of billets are reduced.
Bibliography:Application Number: CN20132499379U