JPS6395620U

JPS6395620U -

Info

Publication number: JPS6395620U
Application number: JP19104186U
Authority: JP
Priority date: 1986-12-10
Filing date: 1986-12-10
Publication date: 1988-06-20

Description

[Brief explanation of the drawing]

第１図はこの考案に係るバーリング加工装置の
縦断正面図、第２図及び第３図は加工工程の縦断
正面図、第４図は立上がり筒部を形成した縦断正
面図、第５図から第７図迄は絞り角を示す縦断正
面図、第８図は従来の立上がり筒部の縦断正面図
、第９図は従来のバーリング加工装置の縦断正面
図である。２１……上型、２２……打抜きポンチ、２３…
…深絞りダイス、２４……下型、２５……打抜き
ダイス、２６……深絞り部、２７……深絞りポン
チ、２８……しわ押え。 Fig. 1 is a longitudinal sectional front view of the burring processing device according to this invention, Figs. 2 and 3 are longitudinal sectional front views of the machining process, Fig. 4 is a longitudinal sectional front view showing the formation of a rising cylinder, and Figs. 7 to 7 are longitudinal sectional front views showing the drawing angle, FIG. 8 is a longitudinal sectional front view of a conventional rising tube portion, and FIG. 9 is a longitudinal sectional front view of a conventional burring processing device. 21... Upper die, 22... Punch punch, 23...
...Deep drawing die, 24...Lower mold, 25...Punching die, 26...Deep drawing section, 27...Deep drawing punch, 28...Wrinkle presser.

Claims

[Scope of utility model registration request]

An upper mold including a punch and a deep drawing die arranged around the punch, a punching die part provided in the center, and a deep drawing part provided at the outer peripheral edge, arranged around the deep drawing punch and the upper mold. A burring for the top plate of a container such as a drum, characterized in that the drawing angle of the deep drawing part of the outer periphery of the deep drawing punch is made large so as to reduce the stress applied to the material. Processing equipment.