JPS57100820A - Bending angle controlling device in press brake - Google Patents
Bending angle controlling device in press brakeInfo
- Publication number
- JPS57100820A JPS57100820A JP17700180A JP17700180A JPS57100820A JP S57100820 A JPS57100820 A JP S57100820A JP 17700180 A JP17700180 A JP 17700180A JP 17700180 A JP17700180 A JP 17700180A JP S57100820 A JPS57100820 A JP S57100820A
- Authority
- JP
- Japan
- Prior art keywords
- die
- punch
- work
- bending
- 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
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To enable 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 of a work A, the thickness T of a work, bending length B, tensile strength S, angle A, width V of groove of the die 7a etc. are inputted to the control board 87. When working, pressure BF is calculated by detecting displacement of the body 1 with a detecting plate 121, and a correction value relating to mechanical characteristics of the body 1 and elastic characteristics of the work are calculated from the pressure and above-mentioned V, T, S, A. The distance of approach D of the punch 5a to the groove of the die 7a is determined by calculation from the above and above- mentioned V, T, A and a theoretical value D1 calculated from shoulder R Rd of the die 7a and tip R Rp of the punch 5a. A connection adjusting mechanism of the punch and die is controlled basing upon this.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17700180A JPS57100820A (en) | 1980-12-15 | 1980-12-15 | Bending angle controlling device in press brake |
US06/328,601 US4486841A (en) | 1980-12-09 | 1981-12-08 | Bending press |
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 |
CA000391772A CA1181673A (en) | 1980-12-09 | 1981-12-08 | Bending press |
CH7868/81A CH656813A5 (en) | 1980-12-09 | 1981-12-09 | METHOD AND DEVICE FOR FORMING RECESSES IN A WORKPIECE. |
IT49870/81A IT1172141B (en) | 1980-12-09 | 1981-12-09 | IMPROVEMENT IN BENDING PRESSES |
FR8123043A FR2495505B1 (en) | 1980-12-09 | 1981-12-09 | BENDING METHOD AND APPARATUS FOR ADJUSTING THE STROKE OF A 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 |
SE8800009A SE465710B (en) | 1980-12-09 | 1988-01-04 | BENDING PRESS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17700180A JPS57100820A (en) | 1980-12-15 | 1980-12-15 | Bending angle controlling device in press brake |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57100820A true JPS57100820A (en) | 1982-06-23 |
JPH0120928B2 JPH0120928B2 (en) | 1989-04-19 |
Family
ID=16023433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17700180A Granted JPS57100820A (en) | 1980-12-09 | 1980-12-15 | Bending angle controlling device in press brake |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57100820A (en) |
Cited By (7)
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 |
JPS63157722A (en) * | 1986-12-19 | 1988-06-30 | Toyo Koki:Kk | Bending device |
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 |
US5857366A (en) * | 1994-07-08 | 1999-01-12 | Amada Company, Ltd. | Method of bending workpiece to target bending angle accurately and press brake for use in the same method |
-
1980
- 1980-12-15 JP JP17700180A patent/JPS57100820A/en active Granted
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59212121A (en) * | 1983-05-17 | 1984-12-01 | Amada Co Ltd | Folding method in press brake |
JPH0418927B2 (en) * | 1983-05-17 | 1992-03-30 | Amada Co Ltd | |
JPS6024223A (en) * | 1983-07-19 | 1985-02-06 | Amada Co Ltd | Method for controlling bending angle with press brake |
JPS63157722A (en) * | 1986-12-19 | 1988-06-30 | Toyo Koki:Kk | Bending device |
JPH0353047B2 (en) * | 1986-12-19 | 1991-08-13 | Toyokoki Co | |
JPS63290623A (en) * | 1987-05-23 | 1988-11-28 | Toyo Koki:Kk | Press brake |
JPH0354012B2 (en) * | 1987-05-23 | 1991-08-16 | ||
JPS63295017A (en) * | 1987-05-26 | 1988-12-01 | Toyo Koki:Kk | Press brake |
JPH0354013B2 (en) * | 1987-05-26 | 1991-08-16 | ||
WO1991003333A1 (en) * | 1989-08-31 | 1991-03-21 | Kabushiki Kaisha Komatsu Seisakusho | Control device for brake of press |
US5857366A (en) * | 1994-07-08 | 1999-01-12 | Amada Company, Ltd. | Method of bending workpiece to target bending angle accurately and press brake for use in the same method |
Also Published As
Publication number | Publication date |
---|---|
JPH0120928B2 (en) | 1989-04-19 |
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