GB2022866A - Hydraulic Press Control - Google Patents

Hydraulic Press Control

Info

Publication number
GB2022866A
GB2022866A GB7912830A GB7912830A GB2022866A GB 2022866 A GB2022866 A GB 2022866A GB 7912830 A GB7912830 A GB 7912830A GB 7912830 A GB7912830 A GB 7912830A GB 2022866 A GB2022866 A GB 2022866A
Authority
GB
United Kingdom
Prior art keywords
movement
press
values
pressure
pressing operation
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.)
Withdrawn
Application number
GB7912830A
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.)
Saab AB
Original Assignee
Saab Scania AB
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 Saab Scania AB filed Critical Saab Scania AB
Publication of GB2022866A publication Critical patent/GB2022866A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/26—Programme control arrangements
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/10—Stamping using yieldable or resilient pads
    • B21D22/12—Stamping using yieldable or resilient pads using enclosed flexible chambers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/08—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using plugboards, cross-bar distributors, matrix switches, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Presses (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The hydraulic pressure in a press is varied during a pressing operation in dependence on the relative movement between a pair of press components. Means sense this movement and produce a control signal which, causes a hydraulic system to vary the hydraulic pressure during the pressing operation according to a functional press relationship. The sensing means comprise a manually programmable electrical function generator which has contact points arranged in rows and columns for reproducing in an electrically readable form pairwise associated pressure and movement values constituting points in the relevant functional relationship (p=f(s)), and which at its output is connected to the hydraulic system. Its input side is operatively connected, via a measurement transducer, to one of the said components for receiving a measurement signal (s) which is a measure of the movement and which makes the function generator issue at its output the said pressure values as the movement values are reached. <IMAGE>
GB7912830A 1978-04-17 1979-04-11 Hydraulic Press Control Withdrawn GB2022866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7804282A SE415638B (en) 1978-04-17 1978-04-17 DEVICE FOR PRESSURES WHICH ARE PREFERRED FOR THE FORMATION OF THE PALTIM AND WHICH THE FORMATION IS DUE TO A HYDRAULIC PRESSURE VARIABLE IN A PRESSING OPERATION

Publications (1)

Publication Number Publication Date
GB2022866A true GB2022866A (en) 1979-12-19

Family

ID=20334626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7912830A Withdrawn GB2022866A (en) 1978-04-17 1979-04-11 Hydraulic Press Control

Country Status (4)

Country Link
CA (1) CA1147436A (en)
FR (1) FR2423330A1 (en)
GB (1) GB2022866A (en)
SE (1) SE415638B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006000749A1 (en) * 2004-06-28 2006-01-05 Sensitivity Limited Actuation apparatus
EP1655085A3 (en) * 2004-11-04 2008-04-09 Fanuc Ltd Die cushion mechanism, and apparatus and method for controlling the same
CN115178647A (en) * 2022-09-14 2022-10-14 季华实验室 Punching classification method and system, electronic equipment and storage medium

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE432221B (en) 1980-06-30 1984-03-26 Karlstad Mekaniska Ab DEVICE FOR COMBINED MEDICAL AND SPEED CONTROL OF A HYDRAULIC MANOVERED PRESS TABLE
JPS60133933A (en) * 1983-12-21 1985-07-17 Honda Motor Co Ltd Press forming method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712772A (en) * 1970-09-23 1973-01-23 Hunkar Instr Dev Labor Inc Control system for parison extruders

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006000749A1 (en) * 2004-06-28 2006-01-05 Sensitivity Limited Actuation apparatus
EP1655085A3 (en) * 2004-11-04 2008-04-09 Fanuc Ltd Die cushion mechanism, and apparatus and method for controlling the same
US7461530B2 (en) 2004-11-04 2008-12-09 Fanuc Ltd Die cushion mechanism, and apparatus and method for controlling the same
CN115178647A (en) * 2022-09-14 2022-10-14 季华实验室 Punching classification method and system, electronic equipment and storage medium

Also Published As

Publication number Publication date
FR2423330A1 (en) 1979-11-16
SE415638B (en) 1980-10-20
SE7804282L (en) 1979-10-18
FR2423330B1 (en) 1984-07-20
CA1147436A (en) 1983-05-31

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)