JPS57100819A - Bending angle controlling device in press brake - Google Patents

Bending angle controlling device in press brake

Info

Publication number
JPS57100819A
JPS57100819A JP55172571A JP17257180A JPS57100819A JP S57100819 A JPS57100819 A JP S57100819A JP 55172571 A JP55172571 A JP 55172571A JP 17257180 A JP17257180 A JP 17257180A JP S57100819 A JPS57100819 A JP S57100819A
Authority
JP
Japan
Prior art keywords
die
bending
punch
work
press brake
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
JP55172571A
Other languages
Japanese (ja)
Other versions
JPH0120927B2 (en
Inventor
Katsumi Koyama
Shigenori Kojima
Tsuneo Kogure
Naoaki Itano
Yoshihiko Ohashi
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 JP55172571A priority Critical patent/JPS57100819A/en
Priority to SE8107349A priority patent/SE463701B/en
Priority to US06/328,601 priority patent/US4486841A/en
Priority to AU78359/81A priority patent/AU549120B2/en
Priority to CA000391772A priority patent/CA1181673A/en
Priority to FR8123043A priority patent/FR2495505B1/en
Priority to DE3148744A priority patent/DE3148744C2/en
Priority to GB8137103A priority patent/GB2091604B/en
Priority to CH7868/81A priority patent/CH656813A5/en
Priority to KR1019810004809A priority patent/KR890002733B1/en
Priority to IT49870/81A priority patent/IT1172141B/en
Publication of JPS57100819A publication Critical patent/JPS57100819A/en
Priority to SE8800009A priority patent/SE465710B/en
Publication of JPH0120927B2 publication Critical patent/JPH0120927B2/ja
Granted 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
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work

Landscapes

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

Abstract

PURPOSE: To enalbe highly efficient bending work without making trial bending by providing a bending angle controlling device that automatically controls the distance of approach of a punch and a die in a press brake.
CONSTITUTION: To control the condition of connection of a punch 5a and a die 7a of the body 1 of a press brake by the bending angle A of a work, necessary data such as the width V of the die 7a, thickness T of the work, bending length B, tensile strength S etc. to the control board 87. Pressure BF of an apron of movable side at the time of bending is calculated from these data, and actual pressure BF1 is calculated basing on this and the angle A. Then, correction value δ relating to mechanical characteristics of the body 1 and the force BF of elastic characteristic of the work is calculated, and calculation is made from this and above-mentioned V, T, A, and a theoretical value D1 obtained from shoulder R Rd of the die 7a and tip R Rp of the punch 5a. Then, the distance of approach D of the punch 5a to the groove of the die 7a is determined and thereby a connection adjusting mechanism of the two is controlled.
COPYRIGHT: (C)1982,JPO&Japio
JP55172571A 1980-12-09 1980-12-09 Bending angle controlling device in press brake Granted JPS57100819A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
JP55172571A JPS57100819A (en) 1980-12-09 1980-12-09 Bending angle controlling device in press brake
SE8107349A SE463701B (en) 1980-12-09 1981-12-08 PROVIDED TO PERFORM A V-SHAPED BENDING IN A PRESS AND DEVICE FOR ADJUSTING A SUPPORT ELEMENT IN A PRESS
US06/328,601 US4486841A (en) 1980-12-09 1981-12-08 Bending press
AU78359/81A AU549120B2 (en) 1980-12-09 1981-12-08 Press ram control
CA000391772A CA1181673A (en) 1980-12-09 1981-12-08 Bending press
GB8137103A GB2091604B (en) 1980-12-09 1981-12-09 Bending press
DE3148744A DE3148744C2 (en) 1980-12-09 1981-12-09 Method and device for making bends on a workpiece
FR8123043A FR2495505B1 (en) 1980-12-09 1981-12-09 BENDING METHOD AND APPARATUS FOR ADJUSTING THE STROKE OF A BENDING PRESS
CH7868/81A CH656813A5 (en) 1980-12-09 1981-12-09 METHOD AND DEVICE FOR FORMING RECESSES IN A WORKPIECE.
KR1019810004809A KR890002733B1 (en) 1980-12-09 1981-12-09 Bending press
IT49870/81A IT1172141B (en) 1980-12-09 1981-12-09 IMPROVEMENT IN BENDING PRESSES
SE8800009A SE465710B (en) 1980-12-09 1988-01-04 BENDING PRESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55172571A JPS57100819A (en) 1980-12-09 1980-12-09 Bending angle controlling device in press brake

Publications (2)

Publication Number Publication Date
JPS57100819A true JPS57100819A (en) 1982-06-23
JPH0120927B2 JPH0120927B2 (en) 1989-04-19

Family

ID=15944297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55172571A Granted JPS57100819A (en) 1980-12-09 1980-12-09 Bending angle controlling device in press brake

Country Status (2)

Country Link
JP (1) JPS57100819A (en)
KR (1) KR890002733B1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212121A (en) * 1983-05-17 1984-12-01 Amada Co Ltd Folding method in press brake
JPS6024223A (en) * 1983-07-19 1985-02-06 Amada Co Ltd Method for controlling bending angle with press brake
JPS61169118A (en) * 1985-01-22 1986-07-30 Amada Co Ltd Press machine provided with temperature correction means
JPS63290623A (en) * 1987-05-23 1988-11-28 Toyo Koki:Kk Press brake
JPS63295017A (en) * 1987-05-26 1988-12-01 Toyo Koki:Kk Press brake
WO1991003333A1 (en) * 1989-08-31 1991-03-21 Kabushiki Kaisha Komatsu Seisakusho Control device for brake of press
JP2008220218A (en) * 2007-03-09 2008-09-25 Yanmar Co Ltd Transplanter
JP2013252559A (en) * 2012-05-11 2013-12-19 Horikawa Kogyo:Kk Method of designing die and die
CN115464009A (en) * 2022-06-20 2022-12-13 南通铭泰机床有限公司 Bender of high stability centre gripping

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011096442A1 (en) * 2010-02-04 2011-08-11 国立大学法人岐阜大学 Folding method and folding system using press brake

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0418927B2 (en) * 1983-05-17 1992-03-30 Amada Co Ltd
JPS59212121A (en) * 1983-05-17 1984-12-01 Amada Co Ltd Folding method in press brake
JPS6024223A (en) * 1983-07-19 1985-02-06 Amada Co Ltd Method for controlling bending angle with press brake
JPS61169118A (en) * 1985-01-22 1986-07-30 Amada Co Ltd Press machine provided with temperature correction means
JPH0563246B2 (en) * 1985-01-22 1993-09-10 Amada Co Ltd
JPS63290623A (en) * 1987-05-23 1988-11-28 Toyo Koki:Kk Press brake
JPH0354012B2 (en) * 1987-05-23 1991-08-16
JPH0354013B2 (en) * 1987-05-26 1991-08-16
JPS63295017A (en) * 1987-05-26 1988-12-01 Toyo Koki:Kk Press brake
WO1991003333A1 (en) * 1989-08-31 1991-03-21 Kabushiki Kaisha Komatsu Seisakusho Control device for brake of press
JP2008220218A (en) * 2007-03-09 2008-09-25 Yanmar Co Ltd Transplanter
JP2013252559A (en) * 2012-05-11 2013-12-19 Horikawa Kogyo:Kk Method of designing die and die
CN115464009A (en) * 2022-06-20 2022-12-13 南通铭泰机床有限公司 Bender of high stability centre gripping

Also Published As

Publication number Publication date
KR890002733B1 (en) 1989-07-26
JPH0120927B2 (en) 1989-04-19
KR830007160A (en) 1983-10-14

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