JPS57100819A - Bending angle controlling device in press brake - Google Patents
Bending angle controlling device in press brakeInfo
- 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
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
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)
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)
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 |
-
1980
- 1980-12-09 JP JP55172571A patent/JPS57100819A/en active Granted
-
1981
- 1981-12-09 KR KR1019810004809A patent/KR890002733B1/en active
Cited By (13)
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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