Punch structure of hole-flanging device

The utility model discloses a punch structure of hole-flanging device, comprising a hole reaming area and a working area; wherein the lower end of the working area is provided with a groove circumferentially. The punch structure is provided with a groove, for broaching and cutting the inner hole of...

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Bibliographic Details
Main Authors CHEN KANGXIANG, XI WENQING
Format Patent
LanguageChinese
English
Published 03.02.2010
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 discloses a punch structure of hole-flanging device, comprising a hole reaming area and a working area; wherein the lower end of the working area is provided with a groove circumferentially. The punch structure is provided with a groove, for broaching and cutting the inner hole of work piece, thereby confirming the verticality, smoothness and ellipticity of flanged holes.
Bibliography:Application Number: CN20092118723U