EP0934782A3 - Drive system for the jaws of forming presses - Google Patents

Drive system for the jaws of forming presses Download PDF

Info

Publication number
EP0934782A3
EP0934782A3 EP98124307A EP98124307A EP0934782A3 EP 0934782 A3 EP0934782 A3 EP 0934782A3 EP 98124307 A EP98124307 A EP 98124307A EP 98124307 A EP98124307 A EP 98124307A EP 0934782 A3 EP0934782 A3 EP 0934782A3
Authority
EP
European Patent Office
Prior art keywords
jaws
clamped
drive system
forming
punches
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Withdrawn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
EP98124307A
Other languages
German (de)
French (fr)
Other versions
EP0934782A2 (en
Inventor
Giorgio Cella
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.)
Tecnostamp Srl
Original Assignee
Tecnostamp Srl
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 Tecnostamp Srl filed Critical Tecnostamp Srl
Publication of EP0934782A2 publication Critical patent/EP0934782A2/en
Publication of EP0934782A3 publication Critical patent/EP0934782A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • B21D5/0236—Tool clamping

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Press Drives And Press Lines (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

A drive system for the jaws of forming presses comprising series of pairs of opposed tools, punches (10) and dies (40), shaped according to the forming to be carried out, the punches (10) being clamped, by means of cylindrical actuators (101), to intermediaries (5), in turn clamped to an upper movable table (1) of the press, and the dies (40) being clamped, by means of cylindrical actuators (102), to a supporting bar (41); the cylindrical actuators (101, 102) are controlled during clamping by respective spring means (18, 54) and are hydraulically unclamped through the pressure of oil coming from special ducts made in the respective rear plates (22, 25).
EP98124307A 1998-01-28 1998-12-21 Drive system for the jaws of forming presses Withdrawn EP0934782A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI980155 IT1298501B1 (en) 1998-01-28 1998-01-28 BENDING PRESSES JAW DRIVE SYSTEM
ITMI980155 1998-01-28

Publications (2)

Publication Number Publication Date
EP0934782A2 EP0934782A2 (en) 1999-08-11
EP0934782A3 true EP0934782A3 (en) 2003-01-08

Family

ID=11378737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98124307A Withdrawn EP0934782A3 (en) 1998-01-28 1998-12-21 Drive system for the jaws of forming presses

Country Status (2)

Country Link
EP (1) EP0934782A3 (en)
IT (1) IT1298501B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6395109B1 (en) 2000-02-15 2002-05-28 Cargill, Incorporated Bar product, cylinder rods, hydraulic cylinders, and method for manufacturing
AT408729B (en) 2000-08-14 2002-02-25 Trumpf Maschinen Austria Gmbh TOOL CLAMPING DEVICE FOR A MOLDING TOOL, IN PARTICULAR A BENDING PRESS
AT414327B (en) * 2003-05-14 2007-09-15 Trumpf Maschinen Austria Gmbh TOOL CRADLE
JP2015120185A (en) * 2013-12-24 2015-07-02 株式会社アマダホールディングス Fitting device for intermediate plate of press brake

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506538A (en) * 1983-09-21 1985-03-26 Niagara Machine & Tool Works Punch-clamping construction for presses
US4895014A (en) * 1986-08-28 1990-01-23 Houston David L Failsafe tool clamping system for press brake
EP0754506A2 (en) * 1995-07-17 1997-01-22 ABIEMME S.r.L. Compressed air system for clamping and unclamping cornice brake tools

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506538A (en) * 1983-09-21 1985-03-26 Niagara Machine & Tool Works Punch-clamping construction for presses
US4895014A (en) * 1986-08-28 1990-01-23 Houston David L Failsafe tool clamping system for press brake
EP0754506A2 (en) * 1995-07-17 1997-01-22 ABIEMME S.r.L. Compressed air system for clamping and unclamping cornice brake tools

Also Published As

Publication number Publication date
EP0934782A2 (en) 1999-08-11
IT1298501B1 (en) 2000-01-12
ITMI980155A1 (en) 1999-07-28

Similar Documents

Publication Publication Date Title
US4905556A (en) Blanking press
EP0920975A3 (en) Thermoforming machine with linear recirculation of sheet holding frames
US5979211A (en) Hydraulic deep drawing apparatus
DE3663460D1 (en) Tool-changing arrangement for a multistage metal-forming machine tool
EP0934782A3 (en) Drive system for the jaws of forming presses
CA2184460A1 (en) Bending machine for elongate workpieces
EP1441867B1 (en) Multipurpose horizontal press having a fixed workpiece-holder for a tubular workpiece to be drawn or tapered
CA3080350C (en) Fine blanking system and method for operating the same
EP1155757A3 (en) Pneumatic control system for quick clamping of cornice brake tools
CA2298255A1 (en) Method of transferring a sheet through a working apparatus
EP0771238B1 (en) Bending press for sheet metal
JPH05269599A (en) Press for making molding from flowed-in material
CA2250019C (en) Press with a hydraulic plate
JPS569029A (en) Connector of feed bar
CN220295888U (en) Quick punching device
US20170326619A1 (en) Press for producing fine cut parts
CN215282085U (en) Automatic printing of books is with cross cutting machine of adjustable cutter position
CN210358819U (en) Multifunctional blanking and punching die
SU1260074A1 (en) Arrangement for joining parts by press-in
JPH0232059B2 (en)
SU1166863A1 (en) Compound die
RU92014839A (en) STAMP OF SEQUENTIAL ACTION
Broquet et al. Tool-Changing Arrangement for a Multistage Metal-Forming Machine
SU715174A1 (en) Beading apparatus
SU1479169A1 (en) Compound die for sheet forming

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20030701