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JPS57159219A - Preventing device for tilting of ram of press brake - Google Patents

Preventing device for tilting of ram of press brake

Info

Publication number
JPS57159219A
JPS57159219A JP4318881A JP4318881A JPS57159219A JP S57159219 A JPS57159219 A JP S57159219A JP 4318881 A JP4318881 A JP 4318881A JP 4318881 A JP4318881 A JP 4318881A JP S57159219 A JPS57159219 A JP S57159219A
Authority
JP
Japan
Prior art keywords
ram
tilting
shaft
press brake
hydraulic device
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
JP4318881A
Other languages
Japanese (ja)
Inventor
Hiroaki Senda
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.)
AIZAWA TEKKOSHO KK
Original Assignee
AIZAWA 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 AIZAWA TEKKOSHO KK filed Critical AIZAWA TEKKOSHO KK
Priority to JP4318881A priority Critical patent/JPS57159219A/en
Publication of JPS57159219A publication Critical patent/JPS57159219A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/24—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam

Landscapes

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

Abstract

PURPOSE:To prevent tilting of the ram of a press brake perfectly by controlling supply of pressure liquid of a hydraulic device basing on detection of tilting of the ram. CONSTITUTION:When a platy ram 15 provided with a punch, an upper die, is tilted while going down, a rack 28 of one side goes down faster than that of the other side. In this case, as a support 30 is allowed to rotate freely around a pin 25, a shaft 31 tilts to the same direction and by the same angle with the ram 15. That is, the shaft 31 acts as a member for detecting tilting of the ram 15. Displacement caused by tilting of the shaft 31 is magnified three times by a bell crank 44 and transmitted to a movable member 40 to move the member 40. Consequently, one of clearance 52 between an inflow port 37 and an outflow port 38 becomes narrow and flow of oil to the cylinder of one of hydraulic device 16 is reduced. Thus, tilting of the ram 15 is eliminated immediately.
JP4318881A 1981-03-26 1981-03-26 Preventing device for tilting of ram of press brake Pending JPS57159219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4318881A JPS57159219A (en) 1981-03-26 1981-03-26 Preventing device for tilting of ram of press brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4318881A JPS57159219A (en) 1981-03-26 1981-03-26 Preventing device for tilting of ram of press brake

Publications (1)

Publication Number Publication Date
JPS57159219A true JPS57159219A (en) 1982-10-01

Family

ID=12656937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4318881A Pending JPS57159219A (en) 1981-03-26 1981-03-26 Preventing device for tilting of ram of press brake

Country Status (1)

Country Link
JP (1) JPS57159219A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052099U (en) * 1983-09-12 1985-04-12 株式会社　アマダ Ram coupling device in hydraulic press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052099U (en) * 1983-09-12 1985-04-12 株式会社　アマダ Ram coupling device in hydraulic press
JPH032399Y2 (en) * 1983-09-12 1991-01-23

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