JPS57184520A - Die for hemming press - Google Patents

Die for hemming press

Info

Publication number
JPS57184520A
JPS57184520A JP7044181A JP7044181A JPS57184520A JP S57184520 A JPS57184520 A JP S57184520A JP 7044181 A JP7044181 A JP 7044181A JP 7044181 A JP7044181 A JP 7044181A JP S57184520 A JPS57184520 A JP S57184520A
Authority
JP
Japan
Prior art keywords
face
bending
flange
die
cam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7044181A
Other languages
Japanese (ja)
Other versions
JPS6150056B2 (en
Inventor
Shokichi Ito
Minoru Minegishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP7044181A priority Critical patent/JPS57184520A/en
Publication of JPS57184520A publication Critical patent/JPS57184520A/en
Publication of JPS6150056B2 publication Critical patent/JPS6150056B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
    • B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE:To eliminate the formation of the swelling part of the flange of a work and to prevent the reverse bending by a structure where a working mold is moved in the same direction as the direction of bending of the flange of the work when auxiliary bending is performed. CONSTITUTION:When an upper mold 15 falls, a cam face 18 for auxiliary bending is first brought into contact with a sliding face 9a of a driving cam 9 for auxiliary bending, and a sliding cam 17 is driven by the cam 9 while compressing an elastic material 23 and falls along the face 9a. At this time, a die face 21 for auxiliary bending of a working die 20 is brought into contact with a flange 6a of a door outer panel 6, and the face 21 performs the auxiliary bending of the flange 6a according as the male die 15 falls. When the die 15 falls furthermore, a mold face 22 for main bending is brought into contact with the flange 6a to start the main bending. Next, the cam 9 is pressed by the face 18 to press an elastic material 13, and the cam face 19 slides on a sliding face 11a, and the face 22 is moved in the direction of the main bending of the flange 6a to perform the main bending. After the completion of the hemming work, the die 15 rises.
JP7044181A 1981-05-11 1981-05-11 Die for hemming press Granted JPS57184520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7044181A JPS57184520A (en) 1981-05-11 1981-05-11 Die for hemming press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7044181A JPS57184520A (en) 1981-05-11 1981-05-11 Die for hemming press

Publications (2)

Publication Number Publication Date
JPS57184520A true JPS57184520A (en) 1982-11-13
JPS6150056B2 JPS6150056B2 (en) 1986-11-01

Family

ID=13431577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7044181A Granted JPS57184520A (en) 1981-05-11 1981-05-11 Die for hemming press

Country Status (1)

Country Link
JP (1) JPS57184520A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6467324B2 (en) * 2001-02-27 2002-10-22 William Patrick Die hemming assembly and method
US6923036B1 (en) 1999-06-29 2005-08-02 Ronald C. Stefanek Hemming apparatus and method
WO2001000918A3 (en) * 1999-06-29 2009-09-11 Stefanek Ronald C Hemming apparatus and method
EP2351624A1 (en) * 2008-09-25 2011-08-03 JFE Steel Corporation Method of manufacturing closed structural member, press-forming device, and closed structural member

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS554829U (en) * 1978-06-21 1980-01-12

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS541223A (en) * 1977-06-06 1979-01-08 Hitachi Ltd Eutectic graphite cast iron and method of producing thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS554829U (en) * 1978-06-21 1980-01-12

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6923036B1 (en) 1999-06-29 2005-08-02 Ronald C. Stefanek Hemming apparatus and method
WO2001000918A3 (en) * 1999-06-29 2009-09-11 Stefanek Ronald C Hemming apparatus and method
US6467324B2 (en) * 2001-02-27 2002-10-22 William Patrick Die hemming assembly and method
EP2351624A1 (en) * 2008-09-25 2011-08-03 JFE Steel Corporation Method of manufacturing closed structural member, press-forming device, and closed structural member
EP2351624A4 (en) * 2008-09-25 2012-03-14 Jfe Steel Corp Method of manufacturing closed structural member, press-forming device, and closed structural member
US8844581B2 (en) 2008-09-25 2014-09-30 Jfe Steel Corporation Closed structure parts, method and press forming apparatus for manufacturing the same

Also Published As

Publication number Publication date
JPS6150056B2 (en) 1986-11-01

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