JPS57206529A - Bulge working device - Google Patents

Bulge working device

Info

Publication number
JPS57206529A
JPS57206529A JP56089531A JP8953181A JPS57206529A JP S57206529 A JPS57206529 A JP S57206529A JP 56089531 A JP56089531 A JP 56089531A JP 8953181 A JP8953181 A JP 8953181A JP S57206529 A JPS57206529 A JP S57206529A
Authority
JP
Japan
Prior art keywords
pressure
bulge
pressurized
liquid
material pipe
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
JP56089531A
Other languages
Japanese (ja)
Other versions
JPS6049056B2 (en
Inventor
Yuji Yoshitomi
Hideaki Kanbara
Hiroshi Nomura
Takao Okamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56089531A priority Critical patent/JPS6049056B2/en
Publication of JPS57206529A publication Critical patent/JPS57206529A/en
Publication of JPS6049056B2 publication Critical patent/JPS6049056B2/en
Expired 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
    • 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
    • B21D26/037—Forming branched tubes
    • 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
    • B21D26/039—Means for controlling the clamping or opening of the moulds

Abstract

PURPOSE:To bulge-mold a bulging part of a desired shape on a part of a pipe with high dimension accuracy, by detecting a pressurized liquid added into a material pipe, and controlling the liquid pressure and an axial load added onto the material pipe end by use of a cam and a pressure controlling valve. CONSTITUTION:In a bulge-working device of a pipe material, which uses a split metallic mold, at first, a direction changeover valve 60 is energized, a pressurized liquid is fed into a material pipe 1 through a high pressurized liquid leading-in hole 7, and bulge-molding is started. At the same time, the pressurized liquid is fed to a pressure chamber 54 of a cylinder 53, and a piston rod 49 and a cam rod 47 are moved in the direction (c). As a result, a cam 46 is moved, and in accordance with its inclined surface 46a, a guide bar 42 of a pressure control valve 39 is moved in the direction (e), and a pressure control valve 40 is pressed against a pressurized oil hole 39a. Accordingly, the pressurized oil which has been flowing to an oil pressure tank 45 is reduced, oil pressure added to the cylinder 53 is raised, and an axial load added to the material pipe 1 is increased. The bulge-working is performed by continuously excecuting this operation and controlling the axial load and the liquid pressure.
JP56089531A 1981-06-12 1981-06-12 Bulge processing equipment Expired JPS6049056B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56089531A JPS6049056B2 (en) 1981-06-12 1981-06-12 Bulge processing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56089531A JPS6049056B2 (en) 1981-06-12 1981-06-12 Bulge processing equipment

Publications (2)

Publication Number Publication Date
JPS57206529A true JPS57206529A (en) 1982-12-17
JPS6049056B2 JPS6049056B2 (en) 1985-10-30

Family

ID=13973389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56089531A Expired JPS6049056B2 (en) 1981-06-12 1981-06-12 Bulge processing equipment

Country Status (1)

Country Link
JP (1) JPS6049056B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61259841A (en) * 1985-05-13 1986-11-18 Koji Kimura Hydraulic bulge forming method of seat lug having seat stay rest
CN104707890A (en) * 2015-03-24 2015-06-17 燕山大学 Automobile axle case piece hydraulic-bugling two-stage pressurization system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61259841A (en) * 1985-05-13 1986-11-18 Koji Kimura Hydraulic bulge forming method of seat lug having seat stay rest
CN104707890A (en) * 2015-03-24 2015-06-17 燕山大学 Automobile axle case piece hydraulic-bugling two-stage pressurization system

Also Published As

Publication number Publication date
JPS6049056B2 (en) 1985-10-30

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