JPS642723A - Detecting device for bent angle of work - Google Patents
Detecting device for bent angle of workInfo
- Publication number
- JPS642723A JPS642723A JP15642587A JP15642587A JPS642723A JP S642723 A JPS642723 A JP S642723A JP 15642587 A JP15642587 A JP 15642587A JP 15642587 A JP15642587 A JP 15642587A JP S642723 A JPS642723 A JP S642723A
- Authority
- JP
- Japan
- Prior art keywords
- work
- sensors
- bent angle
- bent
- detecting 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.)
- Granted
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To accurately detect a bent angle and to obtain the bent angle with high reliability by providing a plurality of electrostatic capacity type sensors in parallel in the direction departing the bent position of a work and extending each sensors in the width direction of the work.
CONSTITUTION: The work W is mounted on a die 9 and the work W is bent by the drop of a punch to take a state of the work WA. The distance between the sensors 43A and 43B is given by (l). Distances from intersections at which perpendiculars set at the centers of the sensors 43A, 43B cross the work WA to the upper surfaces of the centers of the sensors 43A, 43B are given respectively by A and B. A formula, tanθ=(A-B)/l is established for the bent angle θof the work. Accordingly, θ is obtained from θ=Arc.tan(A-B)/l. Since (l) is a preset value, the bent angle θ of the work is obtained by measuring the distances A, B.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62156425A JP2521761B2 (en) | 1987-06-25 | 1987-06-25 | Folding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62156425A JP2521761B2 (en) | 1987-06-25 | 1987-06-25 | Folding machine |
Publications (3)
Publication Number | Publication Date |
---|---|
JPH012723A JPH012723A (en) | 1989-01-06 |
JPS642723A true JPS642723A (en) | 1989-01-06 |
JP2521761B2 JP2521761B2 (en) | 1996-08-07 |
Family
ID=15627466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62156425A Expired - Fee Related JP2521761B2 (en) | 1987-06-25 | 1987-06-25 | Folding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2521761B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5285668A (en) * | 1990-02-16 | 1994-02-15 | Kabushiki Kaisha Komatsu Seisakusho | System for detecting bending angle for press brake |
US5367902A (en) * | 1990-10-05 | 1994-11-29 | Komatsu Ltd. | Metal sheet bending machine |
US5531087A (en) * | 1990-10-05 | 1996-07-02 | Kabushiki Kaisha Komatsu Seisakusho | Metal sheet bending machine |
US5652805A (en) * | 1993-05-24 | 1997-07-29 | Kabushiki Kaisha Komatsu Seisakusho | Bending angle detector and straight line extracting device for use therewith and bending angle detecting position setting device |
WO2006070822A1 (en) * | 2004-12-27 | 2006-07-06 | Amada Company, Limited | Work bending angle detecting device and work bending machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60247415A (en) * | 1984-05-24 | 1985-12-07 | Mitsubishi Electric Corp | Device for controlling bending angle of press brake |
-
1987
- 1987-06-25 JP JP62156425A patent/JP2521761B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60247415A (en) * | 1984-05-24 | 1985-12-07 | Mitsubishi Electric Corp | Device for controlling bending angle of press brake |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5285668A (en) * | 1990-02-16 | 1994-02-15 | Kabushiki Kaisha Komatsu Seisakusho | System for detecting bending angle for press brake |
US5367902A (en) * | 1990-10-05 | 1994-11-29 | Komatsu Ltd. | Metal sheet bending machine |
US5531087A (en) * | 1990-10-05 | 1996-07-02 | Kabushiki Kaisha Komatsu Seisakusho | Metal sheet bending machine |
US5652805A (en) * | 1993-05-24 | 1997-07-29 | Kabushiki Kaisha Komatsu Seisakusho | Bending angle detector and straight line extracting device for use therewith and bending angle detecting position setting device |
US5661671A (en) * | 1993-05-24 | 1997-08-26 | Kabushiki Kaisha Komatsu Seisakusho | Bending angle detecting position setting device |
US5899964A (en) * | 1993-05-24 | 1999-05-04 | Kabushiki Kaisha Komatsu Seisakusho | Bending angle detector and straight line extracting device for use therewith and bending angle detecting position setting device |
WO2006070822A1 (en) * | 2004-12-27 | 2006-07-06 | Amada Company, Limited | Work bending angle detecting device and work bending machine |
US7802456B2 (en) | 2004-12-27 | 2010-09-28 | Amada Company, Limited | Work bending angle detecting device and work bending machine |
Also Published As
Publication number | Publication date |
---|---|
JP2521761B2 (en) | 1996-08-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |