JPS5744423A - Opposed type hydraulic forming apparatus with single action press - Google Patents

Opposed type hydraulic forming apparatus with single action press

Info

Publication number
JPS5744423A
JPS5744423A JP55118289A JP11828980A JPS5744423A JP S5744423 A JPS5744423 A JP S5744423A JP 55118289 A JP55118289 A JP 55118289A JP 11828980 A JP11828980 A JP 11828980A JP S5744423 A JPS5744423 A JP S5744423A
Authority
JP
Japan
Prior art keywords
blank holder
blank
punch
hereby
slide
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
JP55118289A
Other languages
Japanese (ja)
Other versions
JPS6056569B2 (en
Inventor
Hiroyuki Amino
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.)
AMINO TEKKOSHO KK
Original Assignee
AMINO TEKKOSHO 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 AMINO TEKKOSHO KK filed Critical AMINO TEKKOSHO KK
Priority to JP55118289A priority Critical patent/JPS6056569B2/en
Publication of JPS5744423A publication Critical patent/JPS5744423A/en
Publication of JPS6056569B2 publication Critical patent/JPS6056569B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE: To efficiently constitute an opposed type hydraulic forming apparatus, and to form a product in an optional shape with a good yield and accuracy, by loosely fitting a blank holder around a punch so as to relatively movable, and giving a blank holding force to the blank holder after touching a blank sheet.
CONSTITUTION: A slide 5 goes down, and hereby, a punch 7 and a blank holder 8 are brought down till touching at a blank sheet; at this point, a flange part W' is clamped between the blank holder 8 and a stationary blank holder 4 of a counter hydraulic dome 1. If the slide 5 further goes down, the descendance of the blank holder 8 is obstructed by the counter hydraulic dome 1; and the weight of the slide 5 and the output of a main cylinder 6 are impressed upon a follower cylinder 9 upholding the blank holder 8, so that a piston rod 9 withdraws. Hereby, the punch 7 goes into a pressure chamber 3 wherein a counter hydraulic pressure is generated; hereby, a press force equivalent to a stroke of the follower cylinder 9 is loaded upon the blank holder 8, and this force becomes the blank holding force for the flange part W'.
COPYRIGHT: (C)1982,JPO&Japio
JP55118289A 1980-08-29 1980-08-29 Opposite hydraulic forming equipment using a single-acting press Expired JPS6056569B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55118289A JPS6056569B2 (en) 1980-08-29 1980-08-29 Opposite hydraulic forming equipment using a single-acting press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55118289A JPS6056569B2 (en) 1980-08-29 1980-08-29 Opposite hydraulic forming equipment using a single-acting press

Publications (2)

Publication Number Publication Date
JPS5744423A true JPS5744423A (en) 1982-03-12
JPS6056569B2 JPS6056569B2 (en) 1985-12-11

Family

ID=14732980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55118289A Expired JPS6056569B2 (en) 1980-08-29 1980-08-29 Opposite hydraulic forming equipment using a single-acting press

Country Status (1)

Country Link
JP (1) JPS6056569B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956925A (en) * 1982-09-27 1984-04-02 Matsushita Electric Works Ltd Opposed liquid pressure forming method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956925A (en) * 1982-09-27 1984-04-02 Matsushita Electric Works Ltd Opposed liquid pressure forming method

Also Published As

Publication number Publication date
JPS6056569B2 (en) 1985-12-11

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