JPS55126400A - Numerical control method - Google Patents

Numerical control method

Info

Publication number
JPS55126400A
JPS55126400A JP3210079A JP3210079A JPS55126400A JP S55126400 A JPS55126400 A JP S55126400A JP 3210079 A JP3210079 A JP 3210079A JP 3210079 A JP3210079 A JP 3210079A JP S55126400 A JPS55126400 A JP S55126400A
Authority
JP
Japan
Prior art keywords
stop
command
cylinder
stopper
control signal
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
JP3210079A
Other languages
Japanese (ja)
Inventor
Toshio Yajima
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP3210079A priority Critical patent/JPS55126400A/en
Priority to US06/126,312 priority patent/US4366689A/en
Priority to CH169280A priority patent/CH646348A5/en
Priority to FR8004979A priority patent/FR2451062A1/en
Publication of JPS55126400A publication Critical patent/JPS55126400A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)
  • Control Of Presses (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE: To escape back-stop up to a desired position and obviate the interference of the back-stop even with the work of any shape by adding dogs, limit switches and some electronic circuits to a press brake.
CONSTITUTION: The hydraulic cylinder 40 of a press brake 30 is extended when the control signal PC1 is high level (H) and is retreated when the control signal CP2 is 1. The cylinder 40 is stopped when the signals PC1, PC2 are both low level (L). The plate bending work is accomplished by extending the cylinder 40 to lower a punch holder 41 down to the bottom dead center position determined by a stopper 37. When the holder 41 abuts against a stopper 35, a relay RX1 is energized. The escape command E of a back-stop 57 is set at H or L in an E command register 21 by a central processing unit CPU. It is made L when this comand E is O and H when 1 and the control unit 10 holds the stop 57 in the current position when the command E is O and retreats the same when 1.
COPYRIGHT: (C)1980,JPO&Japio
JP3210079A 1979-03-05 1979-03-19 Numerical control method Pending JPS55126400A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP3210079A JPS55126400A (en) 1979-03-19 1979-03-19 Numerical control method
US06/126,312 US4366689A (en) 1979-03-05 1980-03-03 Numerical control method
CH169280A CH646348A5 (en) 1979-03-05 1980-03-04 METHOD AND DEVICE FOR NUMERIC PROCESS CONTROL OF A BENDING PRESS.
FR8004979A FR2451062A1 (en) 1979-03-05 1980-03-05 DIGITAL CONTROL METHOD FOR CONTROL DEVICE, PARTICULARLY FOR FOLDING PRESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3210079A JPS55126400A (en) 1979-03-19 1979-03-19 Numerical control method

Publications (1)

Publication Number Publication Date
JPS55126400A true JPS55126400A (en) 1980-09-30

Family

ID=12349465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3210079A Pending JPS55126400A (en) 1979-03-05 1979-03-19 Numerical control method

Country Status (1)

Country Link
JP (1) JPS55126400A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4430879A (en) * 1981-06-12 1984-02-14 Hurco Manufacturing Company, Inc. Apparatus for controlling a press brake
JPS59193799A (en) * 1983-04-20 1984-11-02 Amada Co Ltd Operating method of ram in hydraulic press
JPS62179117U (en) * 1986-05-02 1987-11-13
JPS632518A (en) * 1986-06-20 1988-01-07 Amada Co Ltd Determinating device for pull-back length of back gauge
JPS63273520A (en) * 1987-04-30 1988-11-10 Amada Co Ltd Control method for back gage in press brake
JP2013158812A (en) * 2012-02-07 2013-08-19 Amada Co Ltd Bending device and bending method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4430879A (en) * 1981-06-12 1984-02-14 Hurco Manufacturing Company, Inc. Apparatus for controlling a press brake
JPS59193799A (en) * 1983-04-20 1984-11-02 Amada Co Ltd Operating method of ram in hydraulic press
JPS62179117U (en) * 1986-05-02 1987-11-13
JPS632518A (en) * 1986-06-20 1988-01-07 Amada Co Ltd Determinating device for pull-back length of back gauge
JPS63273520A (en) * 1987-04-30 1988-11-10 Amada Co Ltd Control method for back gage in press brake
JP2013158812A (en) * 2012-02-07 2013-08-19 Amada Co Ltd Bending device and bending method

Similar Documents

Publication Publication Date Title
ES8307035A1 (en) Ignition lock for vehicles with electromagnetic locking.
JPS55126400A (en) Numerical control method
JPS54109582A (en) Two-system braking pressure-reducing valve
JPS5340167A (en) Hydraulic circuit
JPS5278102A (en) Influx control process
JPS53145252A (en) Controller of oil pressure elevator
JPS5423434A (en) Pattern identifying device
JPS55121517A (en) Sound announciator
JPS5375642A (en) Power steering system
JPS5519427A (en) Moving die set bolster
JPS549846A (en) Tester for automibile electronic controller
JPS5431148A (en) Contactless elevator controlling system
JPS5747536A (en) Equipment for preventing double blanking for precision blanking press
JPS52155981A (en) Thyristor device
JPS5243079A (en) Hydraulic circuit for hoisting up and down cargos
JPS53110777A (en) Fluid pressure cylinder equipped with automatic direction changeover valve
JPS53137403A (en) Controller for variable-discharge hydraulic pump
JPS5340951A (en) Hydraulic control circuit for automatic tension
JPS5270424A (en) Relief valve
JPS53138155A (en) Elevator door control circuit
JPS5414120A (en) Initial setting system for device
JPS53141877A (en) Opening control of automatic valve
JPS5266251A (en) Hydraulic elevator
JPS5422070A (en) Control valve for machine
JPS53108748A (en) System control system