JPS57202928A - Bender - Google Patents

Bender

Info

Publication number
JPS57202928A
JPS57202928A JP8682781A JP8682781A JPS57202928A JP S57202928 A JPS57202928 A JP S57202928A JP 8682781 A JP8682781 A JP 8682781A JP 8682781 A JP8682781 A JP 8682781A JP S57202928 A JPS57202928 A JP S57202928A
Authority
JP
Japan
Prior art keywords
work
bending
bend
bend angle
contact material
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
JP8682781A
Other languages
Japanese (ja)
Inventor
Katsumi Koyama
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.)
Amada Co Ltd
Original Assignee
Amada Co 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 Amada Co Ltd filed Critical Amada Co Ltd
Priority to JP8682781A priority Critical patent/JPS57202928A/en
Publication of JPS57202928A publication Critical patent/JPS57202928A/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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means

Landscapes

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

Abstract

PURPOSE:To bend a work accurately at a desired angle in a short time in accordance with the work and a die, by detecting directly the bend angle of the work by the work to perform the feedback control. CONSTITUTION:A bending indicator 15 attached to an upper or lower apron of a press brake 1 is provided with a contact material 153 whih is always pressed to the surface of a work in the bending work and is moved freely along the bending direction. A detecting part 155 detefts the extent of movement of the contact material 153 and outputs a signal based on the detection value, namely, a signal corresponding to the bend angle of the work. The output signal from a gauge cntrols the driving part of the press brake to control the bend angle of the work.
JP8682781A 1981-06-08 1981-06-08 Bender Pending JPS57202928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8682781A JPS57202928A (en) 1981-06-08 1981-06-08 Bender

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8682781A JPS57202928A (en) 1981-06-08 1981-06-08 Bender

Publications (1)

Publication Number Publication Date
JPS57202928A true JPS57202928A (en) 1982-12-13

Family

ID=13897639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8682781A Pending JPS57202928A (en) 1981-06-08 1981-06-08 Bender

Country Status (1)

Country Link
JP (1) JPS57202928A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640113A (en) * 1984-02-03 1987-02-03 Beyeler Machines, S.A. Sheet-bending press incorporating a device for continuous monitoring of the bending angle
JPH01228612A (en) * 1988-03-10 1989-09-12 Amada Metrecs Co Ltd Bending method in bending machine and bending control device
US4966029A (en) * 1988-04-25 1990-10-30 Haemmerle Ag Method of bending a workpiece to a predetermined bending angle
US5829288A (en) * 1993-08-27 1998-11-03 L.V.D. Company N.V. Adaptive folding
US5842366A (en) * 1995-06-12 1998-12-01 Trumpf Gmbh & Company Method and a tooling machine for bending workpieces
WO2003076099A1 (en) * 2002-03-14 2003-09-18 Rostroem Goeran Measuring device
JP2009173302A (en) * 2008-01-23 2009-08-06 Honmafuyuharu Kogyo Kk Metal container and method for manufacturing the same
CN107030155A (en) * 2017-06-24 2017-08-11 郭善财 Universal folding machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640113A (en) * 1984-02-03 1987-02-03 Beyeler Machines, S.A. Sheet-bending press incorporating a device for continuous monitoring of the bending angle
JPH01228612A (en) * 1988-03-10 1989-09-12 Amada Metrecs Co Ltd Bending method in bending machine and bending control device
US4966029A (en) * 1988-04-25 1990-10-30 Haemmerle Ag Method of bending a workpiece to a predetermined bending angle
US5829288A (en) * 1993-08-27 1998-11-03 L.V.D. Company N.V. Adaptive folding
US5842366A (en) * 1995-06-12 1998-12-01 Trumpf Gmbh & Company Method and a tooling machine for bending workpieces
WO2003076099A1 (en) * 2002-03-14 2003-09-18 Rostroem Goeran Measuring device
CH695668A5 (en) * 2002-03-14 2006-07-31 Goeran Rostroem Measurement and control device in a Abkantfpresse.
JP2009173302A (en) * 2008-01-23 2009-08-06 Honmafuyuharu Kogyo Kk Metal container and method for manufacturing the same
CN107030155A (en) * 2017-06-24 2017-08-11 郭善财 Universal folding machine

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