JPS59193731A - Press die device for engraving groove - Google Patents

Press die device for engraving groove

Info

Publication number
JPS59193731A
JPS59193731A JP58066925A JP6692583A JPS59193731A JP S59193731 A JPS59193731 A JP S59193731A JP 58066925 A JP58066925 A JP 58066925A JP 6692583 A JP6692583 A JP 6692583A JP S59193731 A JPS59193731 A JP S59193731A
Authority
JP
Japan
Prior art keywords
groove
punch
blank
work
guiding groove
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
JP58066925A
Other languages
Japanese (ja)
Other versions
JPH0317574B2 (en
Inventor
Hideki Nakaji
Gonjiro Yamanaka
Mitsuyoshi Niimura
Original Assignee
Press Giken Kogyo Kk
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 Press Giken Kogyo Kk filed Critical Press Giken Kogyo Kk
Priority to JP58066925A priority Critical patent/JPH0317574B2/ja
Publication of JPS59193731A publication Critical patent/JPS59193731A/en
Publication of JPH0317574B2 publication Critical patent/JPH0317574B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12Forming profiles on internal or external surfaces

Abstract

PURPOSE:To provide a titled device which prevents the shear droop at the shoulder of a groove owing to a punch, permits easy grinding and improves the yield of a blank material in grooving by a press by providing a projecting around the groove of a punch guiding groove and building up preliminarily the shear droop part of the wall. CONSTITUTION:When a blank holder 1 of a press descends to contact with a work W under pressure, a projecting part 4 around the punch guiding groove intrudes into the work and builds up the material metal at the edge of the punch guiding groove. Even if a punch 2 descends to work a groove on the blank, a build-up metal 3a is kept restrained and therefore the retracting shear droop is obviated. The succeeding finishing and machining stage is made easy as there is less machining margin and the yield of the blank material is improved.
JP58066925A 1983-04-18 1983-04-18 Expired - Lifetime JPH0317574B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58066925A JPH0317574B2 (en) 1983-04-18 1983-04-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58066925A JPH0317574B2 (en) 1983-04-18 1983-04-18

Publications (2)

Publication Number Publication Date
JPS59193731A true JPS59193731A (en) 1984-11-02
JPH0317574B2 JPH0317574B2 (en) 1991-03-08

Family

ID=13330041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58066925A Expired - Lifetime JPH0317574B2 (en) 1983-04-18 1983-04-18

Country Status (1)

Country Link
JP (1) JPH0317574B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190330U (en) * 1985-05-16 1986-11-27
WO2013186490A1 (en) * 2012-06-15 2013-12-19 Numalliance Tube notching method, and associated notching machine
CN104646474A (en) * 2013-11-21 2015-05-27 丰田纺织株式会社 Pressing Method And Pressing Device For Forming Punched Piece By Punching Metal Plate With Die And Punch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494006A (en) * 1972-05-08 1974-01-14
JPS4940068A (en) * 1972-08-17 1974-04-15
JPS5223611A (en) * 1975-08-19 1977-02-22 Matsushita Electric Ind Co Ltd Driver for commutatorless motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494006A (en) * 1972-05-08 1974-01-14
JPS4940068A (en) * 1972-08-17 1974-04-15
JPS5223611A (en) * 1975-08-19 1977-02-22 Matsushita Electric Ind Co Ltd Driver for commutatorless motor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190330U (en) * 1985-05-16 1986-11-27
JPH0239620Y2 (en) * 1985-05-16 1990-10-24
WO2013186490A1 (en) * 2012-06-15 2013-12-19 Numalliance Tube notching method, and associated notching machine
FR2991893A1 (en) * 2012-06-15 2013-12-20 Numalliance TUBE CRUNCHING METHOD AND ASSOCIATED CRYSTATING MACHINE
CN104540610A (en) * 2012-06-15 2015-04-22 努曼公司 Tube notching method, and associated notching machine
US9636734B2 (en) 2012-06-15 2017-05-02 Numalliance Tube notching method and associated notching machine
CN104646474A (en) * 2013-11-21 2015-05-27 丰田纺织株式会社 Pressing Method And Pressing Device For Forming Punched Piece By Punching Metal Plate With Die And Punch
US9962754B2 (en) 2013-11-21 2018-05-08 Toyota Boshoku Kabushiki Kaisha Pressing method and pressing device for forming punched piece by punching metal plate with die and punch

Also Published As

Publication number Publication date
JPH0317574B2 (en) 1991-03-08

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