JPS57199530A - Hydraulic pressure bulge forming device - Google Patents

Hydraulic pressure bulge forming device

Info

Publication number
JPS57199530A
JPS57199530A JP56083574A JP8357481A JPS57199530A JP S57199530 A JPS57199530 A JP S57199530A JP 56083574 A JP56083574 A JP 56083574A JP 8357481 A JP8357481 A JP 8357481A JP S57199530 A JPS57199530 A JP S57199530A
Authority
JP
Japan
Prior art keywords
die
moving
material pipe
bulging
dies
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.)
Pending
Application number
JP56083574A
Other languages
Japanese (ja)
Inventor
Junji Kimura
Takeyasu Bando
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.)
NIHON BARUJI KOGYO KK
NIPPON BARUJI KOGYO KK
Original Assignee
NIHON BARUJI KOGYO KK
NIPPON BARUJI 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 NIHON BARUJI KOGYO KK, NIPPON BARUJI KOGYO KK filed Critical NIHON BARUJI KOGYO KK
Priority to JP56083574A priority Critical patent/JPS57199530A/en
Publication of JPS57199530A publication Critical patent/JPS57199530A/en
Pending 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/043—Means for controlling the axial pusher
    • 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
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/12—Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die
    • B21D9/125—Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die by pushing through a curved die

Abstract

PURPOSE:To reduce an accuracy error of a die, by constituting the die of a moving die in the axial direction of a material pipe, and a bulging mold in a position placed between both the moving dies, and fixing the moving die by a movable fixing means falling at right angles with the axis. CONSTITUTION:A material pipe A is inserted in a state that moving dies 3a, 3b have been separated to the right and left, and the moving dies 3a, 3b are installed by moving pistons 4a, 4b. In this case, a flange part 10 of a bulging die 9 is fitted into stepped parts 10a, 10b provided on the moving dies 3a, 3b. Subsequently, a fitting recessed part is fitted into a fitting projection by the piston. Both end openings of the material pipe A are closed by the tip of pressing presses 6a, 6b, a liquid is inserted from a duct line 7b, and simultaneously air is exhausted from a leading hole 7a. Both ends of the material pipe A are pressed by the pressing presses 6a, 6b, and a bulged part is formed along the bulging die 9.
JP56083574A 1981-05-30 1981-05-30 Hydraulic pressure bulge forming device Pending JPS57199530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56083574A JPS57199530A (en) 1981-05-30 1981-05-30 Hydraulic pressure bulge forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56083574A JPS57199530A (en) 1981-05-30 1981-05-30 Hydraulic pressure bulge forming device

Publications (1)

Publication Number Publication Date
JPS57199530A true JPS57199530A (en) 1982-12-07

Family

ID=13806271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56083574A Pending JPS57199530A (en) 1981-05-30 1981-05-30 Hydraulic pressure bulge forming device

Country Status (1)

Country Link
JP (1) JPS57199530A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63130224A (en) * 1986-11-20 1988-06-02 Kawamura Seikan Kogyo Kk Pipe forming method
US5628220A (en) * 1994-04-15 1997-05-13 Wilhelm Schafer Maschinenbau Gmbh & Co. High-pressure bulge-forming system for tubular workpieces
US6029487A (en) * 1998-08-24 2000-02-29 Avmat Kydroforming Ltd. System and method for manufacturing tubular products from tubular workpieces

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115153A (en) * 1974-02-22 1975-09-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115153A (en) * 1974-02-22 1975-09-09

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63130224A (en) * 1986-11-20 1988-06-02 Kawamura Seikan Kogyo Kk Pipe forming method
US5628220A (en) * 1994-04-15 1997-05-13 Wilhelm Schafer Maschinenbau Gmbh & Co. High-pressure bulge-forming system for tubular workpieces
US6029487A (en) * 1998-08-24 2000-02-29 Avmat Kydroforming Ltd. System and method for manufacturing tubular products from tubular workpieces

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