GB2015773A - Hydraulic press - Google Patents

Hydraulic press

Info

Publication number
GB2015773A
GB2015773A GB7905995A GB7905995A GB2015773A GB 2015773 A GB2015773 A GB 2015773A GB 7905995 A GB7905995 A GB 7905995A GB 7905995 A GB7905995 A GB 7905995A GB 2015773 A GB2015773 A GB 2015773A
Authority
GB
United Kingdom
Prior art keywords
ram
amplifier
desired pattern
actual position
hydraulic press
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
Application number
GB7905995A
Other versions
GB2015773B (en
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.)
ThyssenKrupp Technologies AG
Original Assignee
Thyssen Industrie AG
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 Thyssen Industrie AG filed Critical Thyssen Industrie AG
Publication of GB2015773A publication Critical patent/GB2015773A/en
Application granted granted Critical
Publication of GB2015773B publication Critical patent/GB2015773B/en
Expired 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/20—Applications of drives for reducing noise or wear

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)

Abstract

The relationship of force and ram travel of, for example, a cutting press is controlled in accordance with a desired pattern supplied by a data source 20 to an amplifier 19 controlling a quick- acting servo-valve (12). The valve directs a pressure medium to both an upper chamber (14) and a lower chamber (15) of a cylinder (2) to determine movement of a piston (3) carrying a ram (4). A pick up sensor (17) transmits the actual position of the ram (4) to the amplifier (19) which compares the actual position with the desired pattern. <IMAGE>
GB7905995A 1978-03-04 1979-02-20 Hydraulic press Expired GB2015773B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782809387 DE2809387A1 (en) 1978-03-04 1978-03-04 HYDRAULIC CUTTING, BURRING OR THE LIKE. -PRESS WITH HIGHLY CHANGE MOVEMENT RESISTANCE OF THE PRESS SLIDE DURING THE SLIDE PATH

Publications (2)

Publication Number Publication Date
GB2015773A true GB2015773A (en) 1979-09-12
GB2015773B GB2015773B (en) 1982-08-04

Family

ID=6033567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7905995A Expired GB2015773B (en) 1978-03-04 1979-02-20 Hydraulic press

Country Status (3)

Country Link
DE (1) DE2809387A1 (en)
GB (1) GB2015773B (en)
IT (1) IT1111206B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025987A1 (en) * 1979-09-20 1981-04-01 Bêché &amp; Grohs GmbH Method to control the workcycle of a fluidic pressure controlled machine, and machine with fluidic control
US20160116142A1 (en) * 2013-03-19 2016-04-28 Boe Technology Group Co., Ltd. Press fixture

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747548C2 (en) * 1977-10-22 1986-04-17 Thyssen Industrie Ag, 4300 Essen Press with control circuit
SE432221B (en) * 1980-06-30 1984-03-26 Karlstad Mekaniska Ab DEVICE FOR COMBINED MEDICAL AND SPEED CONTROL OF A HYDRAULIC MANOVERED PRESS TABLE
GB2099750B (en) * 1981-06-06 1985-06-26 Samco Strong Ltd Stroke control for press
DE3230930A1 (en) 1982-08-20 1984-02-23 Schirmer, Plate und Siempelkamp Hydraulische Pressen GmbH, 4150 Krefeld Controlling circuit arrangement in a forming press
SE437861B (en) * 1983-02-03 1985-03-18 Goran Palmers DEVICE FOR MEDIUM HYDRAULIC CYLINDER OPERATED MACHINERY WITH ONE OF A DRIVE CELL THROUGH AN ENERGY CUMULATOR DRIVE PUMP
DE3419689C2 (en) * 1984-05-25 1986-11-27 Mannesmann Rexroth GmbH, 8770 Lohr Device for supplying pressure medium to a hydraulic cylinder
JPS62183919A (en) * 1986-02-07 1987-08-12 Amada Co Ltd Stroke control method for plate working machine
DE3613120C2 (en) * 1986-04-18 1994-07-07 Kolbus Gmbh & Co Kg Device on a bookbinding machine for positioning machine parts via actuators for switching to different formats of book blocks
DE4308344A1 (en) * 1993-03-16 1994-09-22 Mueller Weingarten Maschf Method for controlling the drive of a hydraulic press and device for carrying out the method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025987A1 (en) * 1979-09-20 1981-04-01 Bêché &amp; Grohs GmbH Method to control the workcycle of a fluidic pressure controlled machine, and machine with fluidic control
WO1981000824A1 (en) * 1979-09-20 1981-04-02 Beche & Grohs Gmbh Control process of the operating cycle of a fluid pressure machine and fluid pressure machine with a fluid control
DE2937998A1 (en) * 1979-09-20 1981-04-02 Beche & Grohs GmbH, 5609 Hückeswagen METHOD FOR CONTROLLING THE WORK PROCESS OF A PRESSURE-PRESSURIZED WORKING MACHINE, AND PRESSURE-BEANED WORKING MACHINE WITH PRESSURE CONTROLLER
US20160116142A1 (en) * 2013-03-19 2016-04-28 Boe Technology Group Co., Ltd. Press fixture
US9791134B2 (en) * 2013-03-19 2017-10-17 Boe Technology Group Co., Ltd. Press fixture

Also Published As

Publication number Publication date
IT7920590A0 (en) 1979-02-27
DE2809387A1 (en) 1980-01-17
IT1111206B (en) 1986-01-13
GB2015773B (en) 1982-08-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee