US3545241A - Hydraulic press - Google Patents

Hydraulic press Download PDF

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Publication number
US3545241A
US3545241A US723118A US3545241DA US3545241A US 3545241 A US3545241 A US 3545241A US 723118 A US723118 A US 723118A US 3545241D A US3545241D A US 3545241DA US 3545241 A US3545241 A US 3545241A
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US
United States
Prior art keywords
cylinder
press
tray
cavity
pressure
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.)
Expired - Lifetime
Application number
US723118A
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English (en)
Inventor
Eugene E Grankowski
Lambros Pappas
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.)
Allied Products Corp
Original Assignee
Verson Allsteel Press Co
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 Verson Allsteel Press Co filed Critical Verson Allsteel Press Co
Application granted granted Critical
Publication of US3545241A publication Critical patent/US3545241A/en
Assigned to MARINE MIDLAND BANK(DELAWARE), NATIONAL ASSOCIATION reassignment MARINE MIDLAND BANK(DELAWARE), NATIONAL ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VERSON ALLSTEEL PRESS COMPANY, A CORP. OF DE.
Assigned to VERSON ALLSTEEL PRESS COMPANY, A CORP OF DE. reassignment VERSON ALLSTEEL PRESS COMPANY, A CORP OF DE. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: MARINE MIDLAND BANK (DELAWARE) NATIONAL ASSOCIATION
Anticipated expiration legal-status Critical
Assigned to CONTINENTAL BANK N.A. AS AGENT reassignment CONTINENTAL BANK N.A. AS AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALLIED PRODUCTS CORPORATION, A DE CORP.
Assigned to ALLIED PRODUCTS CORPORATION reassignment ALLIED PRODUCTS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: VERSON ALLSTEEL PRESS COMPANY
Assigned to ALLIED PRODUCTS CORPORATION, A CORP. OF DELAWARE reassignment ALLIED PRODUCTS CORPORATION, A CORP. OF DELAWARE RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CONTINENTAL BANK N.A.
Assigned to CONTINENTAL BANK N.A. reassignment CONTINENTAL BANK N.A. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALLIED PRODUCTS CORPORATION
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/02—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure

Definitions

  • the present invention relates to a novel work forming press, and more specifically to a novel hydraulic press.
  • Structures of a general type contemplated herein have usually included cylinder or body means defining a cavity, a hydraulically expandable bag or fluid cell and diaphragm mounted within the cavi-ty, and la tray or support member movable into and out of the cavity.
  • a workpiece to be processed is positioned on a mold or form on the tray which is then inserted within the cavity.
  • the diaphagm is expanded and causes the workpiece to conform closely to the mold. Reaction forces which occur are absorbed and sustained by the cylinder or body means.
  • a more specific object of the present invention is to provide a novel hydraulic press of the above described type having cylinder or body means, an expandable diaphragm or bag and a work supporting tray and further l incorporating cylinder means operated by fluid pressure simultaneously with the diaphragmorfluid cell for distributingreaction forces more uniformly.
  • FIG. 1 is asimplified perspective view showing a ⁇ press incorporating features of thepresent invention
  • FIG. 2 is an end view of the apparatus shown in FIG. 1;
  • p FIG. 3 is an enlarged fragmentary sectional view taken lalong line 3--3 in FIG. 4;
  • Y is an enlarged fragmentary sectional view taken lalong line 3--3 in FIG. 4;
  • FIG. 4 is a fragmentary sectional view taken along line 4 4 in FIG. 3;
  • FIG. 5 is a fragmentary sectional view taken along line 5-5 in FIG. 4.
  • FIGS.,1 and 2 a press 10 incorporating features of the present invention is shown in FIGS.,1 and 2.
  • the press comprises cylinder or body means 12 to be described ⁇ .in detail below mounted on a suitable frame 14.
  • Thebody means defines a cavity into which a work ⁇ supporting tray may be inserted from table extensions 16. and 18 ⁇ at opposite ends of the body.
  • a suitable .source of hydraulic iiuid underpressure is provided ⁇ for actuating the press.
  • this comprises a pump and motor unit 20 shown schematically in FIGS. 2'and 4 having an Ainlet connected with .a reservoir ⁇ 22 and an outlet connected with a control Valve 24.
  • This valve is connected with conduit means 26 having various branches extending to different portions of the press as will be described below.
  • the valve also has a vent port connected by a return line 28 to the reservoir.
  • the cylinder or body means 12 comprises an inner cylinder 30 and a laminated outer cylinder 32 having a plurality of layers 33 formed from sectionswelded together as at 35. These cylinders are made from a suitable metal such as steel. Flanges 37 encircle opposite ends of the cylinder 32 and the ends of the laminations are covered by annular end plates 39 shown lin FIG. 4. v
  • the body means comprising the inner and outer cylinders defines a cavity 34.
  • An upper portion of this cavity is filled by a relatively heavy vand rigid roof casting 36 and a complementary thick and relatively rigid roof plate 38.
  • a lower portion of the cavity is filled by .a relatively heavy and rigid floor casting 40.
  • the inner surfaces of the roof and the floor define relatively rigid upper and lower sides of the work cavity within the press.
  • a tray 42 is slidable into the work cavity 34 on bearing strips or rails 44 and 46 extending along the floor casting 40. As previously indicated, this tray may be inserted .into the cavity from tables 16 or 18 extending oppositely from the body means. If desired, the apparatus may be provided with two trays so that one may be positioned within the cavity while the other is being loaded or unloaded at a retracted position on one of the side tables.
  • the tray 42 has a relatively thick and ⁇ rigid bottom section 48. Opposite sides and 52 and opposite ends 54, only one of which is shown, extend upwardly from the bottom section 48 for defining a work retaining recess 56.
  • a hydraulically expandable bag or uidpressure cell 58 is scured beneath the roof plate 38 and connected with an inlet port 60.
  • a relatively thick and wear .resistant rubber pad or diaphragm l62 is disposed immediately beneath the cell. As will be understood, when the pressure cell is expanded by the introduction of hydraulic fluid under pressure, the diaphragm or pad 62 will be extended downwardly into the cavity 34 for forming engagement with a l workpiece supported by the tray y42. As indicated in FIG.
  • thickened opposite end portions 64 of the roof plate 38 cooperate with means described below for effectively closing the opposite ends of the cavityl 34.
  • ⁇ side railmembers 66 and and ⁇ 68 are disposed within the inner cylinder.
  • Outer surfaces of these side rail members are segments of a cylinder and mate with the interior surface of the member 30.
  • Inner surfaces ofthe side rails have first inclined portions 70 andr72mating with outwardly flaring or inclined surfaces of the tray side Walls 50 and 52.
  • the inner surfaces of the side rails have upper sections 74 and 76 which extend substantially vertically from upper margins of the tray to the diaphragm or pad 62 as shown n FIGS. 3 and 5.
  • a sealing block 78 is mounted on and carried by the tray.
  • This block has opposite side sections 80 and 82 mating with the surfaces 74 and 76 and having downwardly and inwardly beveled inner side surfaces 84 and 86.
  • the sealing block has opposite end portions 88, only one of which is shown in FIG. 4'and which have depending keys 90 interengaging with the tray.
  • the end portions also have downwardly and inwardly inclined inner surfaces 92 and upper surfaces cooperating substantiallyv with the thickened portion l64 of the roof plate for substantially sealing the opposite ends of the cavity.
  • spring seals 94 are disposed between the opposite thickened end 4portion 64 of the roof plate and the opposite end portions 88 of the block respectively for retaining the opposite ends of the diaphragm or pressure pad 62 insuring complete sealing of opposite ends of the cavity during the operation of the press.
  • the apparatus is provided with means for more uniformly distributing the reaction loads to the cylinder or body structure.
  • This means comprises a plurality of hydraulic cylinders 96 and cooperating pistons 98 spaced along the side rail 66 as shown in FIGS. 3 and 4.
  • identical 'but oppositely disposed cylinders 100 and cooperating pistons 102 are spaced along the side rail 68. These cylinders are disposed so that their respective pistons abut and mate with the inclined outer surfaces of the tray side walls 50 and 52.
  • Inlet ports of the cylinders 96 are connected with a passageway 104 extending longitudinally of the side rail ⁇ 66 and inlet ports of the cylinders 100 are connected with a similarlongitudinally extending passageway 106 in the side rail 68.
  • These passageways are respectively connected with the hydraulic supply line 26 by suitable branch conduits 108 as indicated schematically in FIG. 4.
  • the hydraulic supply line 26 is connected by branch conduit 110 with a passageway 112 in the roof plate 38, which passageway communicates with the inlet port 60 of the hydraulic cell or bag 58.
  • a hydraulic press comprising cylindrical body means defining a cavity, a work support member within said cavity for supporting work to be processed, expandable fluid pressure cell means mounted in said cavity oppositely from said work support member for processing the work, and means within said cavity for imparting radial loads to generally opposite portions of said body means located adjacent opposite sides of said work support member for minimizing deformation of and stress concentrations in said body means during processing of the work.
  • a combination, as defined in claim 3, wherein said means for imparting radial loads to the body means comprises liuid pressure cylinder and piston means disposed within each of said side rail members.
  • a combination as defined in claim 4, which includes means for supplying hydraulic fluid under pressure simultaneously to said fluid cell means and to said piston and cylinder means during processing of the work.
  • a combination, as defined in claim 4, wherein said means for imparting radial loads to the body means comprises a plurality oE said cylinder and piston means spaced along each of said side rail members and respectively having pistons abutting said Work support member.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Actuator (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
US723118A 1968-04-22 1968-04-22 Hydraulic press Expired - Lifetime US3545241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72311868A 1968-04-22 1968-04-22

Publications (1)

Publication Number Publication Date
US3545241A true US3545241A (en) 1970-12-08

Family

ID=24904930

Family Applications (1)

Application Number Title Priority Date Filing Date
US723118A Expired - Lifetime US3545241A (en) 1968-04-22 1968-04-22 Hydraulic press

Country Status (13)

Country Link
US (1) US3545241A (ko)
JP (1) JPS4913660B1 (ko)
AT (1) AT286791B (ko)
BE (1) BE722218A (ko)
BR (1) BR6804210D0 (ko)
CH (1) CH511120A (ko)
DE (1) DE1919226C3 (ko)
DK (1) DK137528B (ko)
ES (1) ES359690A1 (ko)
FR (1) FR1590522A (ko)
GB (1) GB1181044A (ko)
NL (1) NL156939B (ko)
SE (1) SE338756B (ko)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875778A (en) * 1972-11-14 1975-04-08 Asea Ab Hydraulic press
FR2354159A1 (fr) * 1976-06-09 1978-01-06 Asea Ab Presse hydraulique
US4080139A (en) * 1975-12-23 1978-03-21 Asea Ab Hydraulic press
US4105388A (en) * 1975-12-23 1978-08-08 Asea Aktiebolag Hydraulic press
US4573335A (en) * 1984-01-20 1986-03-04 Asea Aktiebolag Hydraulic press with pressure cell
US4676086A (en) * 1985-04-18 1987-06-30 Asea Aktiebolag Press of pressure cell type
US4765166A (en) * 1985-01-11 1988-08-23 Asea Aktiebolag Cavity forming press
US5460773A (en) * 1993-08-11 1995-10-24 Fritz; Michael L. Seal for blow down platen
US5466146A (en) * 1992-06-29 1995-11-14 Fritz; Michael L. Hydroforming platen and seal
US6354125B1 (en) * 1998-05-11 2002-03-12 Automation, Press And Tooling Ap&T Ab Apparatus and method for hydroforming workpieces
US6383442B1 (en) * 1994-05-11 2002-05-07 Institutet For Verkstadsteknisk Forskning Apparatus for injection-molding or formation of work pieces
US20040050263A1 (en) * 2000-11-28 2004-03-18 Keijo Hellgren Press plant and a method and use for it with a pressure cell and a divisible tray
US20040065138A1 (en) * 2000-11-28 2004-04-08 Keijo Hellgren Hydraulic press with pressure cell with a tray whic consists of prestressed lamellas
DE10314637B3 (de) * 2003-04-01 2004-09-30 Bohmann, Dirk, Dr.-Ing. Hydroformpresse zum Durchtakten breiter Bleche
US20050022576A1 (en) * 2003-07-30 2005-02-03 Dieter Kapp Device for manufacturing formed parts by internal high pressure deformation
CN100589895C (zh) * 2000-11-28 2010-02-17 阿吾尔技术股份公司 隔膜支承以及在一个压敏元件内初始密封的方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771850A (en) * 1952-03-11 1956-11-27 Douglas Aircraft Co Inc High-pressure hydraulic press
US2848968A (en) * 1954-03-19 1958-08-26 John A Novak High pressure hydraulic press
US3080609A (en) * 1960-07-27 1963-03-12 Barogenics Inc Multi-anvil apparatus and test bodies therefor
US3091804A (en) * 1961-05-24 1963-06-04 Barogenics Inc Hydrostatic press for an elongated object
US3118177A (en) * 1960-06-20 1964-01-21 Asea Ab Autoclave
US3120205A (en) * 1956-02-07 1964-02-04 Gen Tire & Rubber Co Forming pad for hydraulic press

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771850A (en) * 1952-03-11 1956-11-27 Douglas Aircraft Co Inc High-pressure hydraulic press
US2848968A (en) * 1954-03-19 1958-08-26 John A Novak High pressure hydraulic press
US3120205A (en) * 1956-02-07 1964-02-04 Gen Tire & Rubber Co Forming pad for hydraulic press
US3118177A (en) * 1960-06-20 1964-01-21 Asea Ab Autoclave
US3080609A (en) * 1960-07-27 1963-03-12 Barogenics Inc Multi-anvil apparatus and test bodies therefor
US3091804A (en) * 1961-05-24 1963-06-04 Barogenics Inc Hydrostatic press for an elongated object

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875778A (en) * 1972-11-14 1975-04-08 Asea Ab Hydraulic press
US4080139A (en) * 1975-12-23 1978-03-21 Asea Ab Hydraulic press
US4105388A (en) * 1975-12-23 1978-08-08 Asea Aktiebolag Hydraulic press
FR2354159A1 (fr) * 1976-06-09 1978-01-06 Asea Ab Presse hydraulique
US4112724A (en) * 1976-06-09 1978-09-12 Asea Aktiebolag Transportation units for supporting and moving plate-formed attachment member into and out of a press stand of hydraulic press
US4573335A (en) * 1984-01-20 1986-03-04 Asea Aktiebolag Hydraulic press with pressure cell
US4765166A (en) * 1985-01-11 1988-08-23 Asea Aktiebolag Cavity forming press
US4676086A (en) * 1985-04-18 1987-06-30 Asea Aktiebolag Press of pressure cell type
US5545026A (en) * 1992-06-29 1996-08-13 Fritz; Michael L. Hydroforming platen and seal
US5466146A (en) * 1992-06-29 1995-11-14 Fritz; Michael L. Hydroforming platen and seal
US5460773A (en) * 1993-08-11 1995-10-24 Fritz; Michael L. Seal for blow down platen
US5679388A (en) * 1993-08-11 1997-10-21 Fritz; Michael L. Protected seal for blow down platen
US5932167A (en) * 1993-08-11 1999-08-03 Hy Tech Worldwide, Inc. Method for blow down hydroforming sheet material
US6210623B1 (en) 1993-08-11 2001-04-03 Hy-Tech Worldwide, Inc. Method for blow down hydroforming sheet material
US6383442B1 (en) * 1994-05-11 2002-05-07 Institutet For Verkstadsteknisk Forskning Apparatus for injection-molding or formation of work pieces
US6354125B1 (en) * 1998-05-11 2002-03-12 Automation, Press And Tooling Ap&T Ab Apparatus and method for hydroforming workpieces
US20040050263A1 (en) * 2000-11-28 2004-03-18 Keijo Hellgren Press plant and a method and use for it with a pressure cell and a divisible tray
US20040065138A1 (en) * 2000-11-28 2004-04-08 Keijo Hellgren Hydraulic press with pressure cell with a tray whic consists of prestressed lamellas
US7461531B2 (en) * 2000-11-28 2008-12-09 Avure Technologies Ab Press plant and a method and use for it with a pressure cell and a divisible tray
CN100589895C (zh) * 2000-11-28 2010-02-17 阿吾尔技术股份公司 隔膜支承以及在一个压敏元件内初始密封的方法
DE10314637B3 (de) * 2003-04-01 2004-09-30 Bohmann, Dirk, Dr.-Ing. Hydroformpresse zum Durchtakten breiter Bleche
US20050022576A1 (en) * 2003-07-30 2005-02-03 Dieter Kapp Device for manufacturing formed parts by internal high pressure deformation
US7080536B2 (en) * 2003-07-30 2006-07-25 Theodor Gräbener GmbH & Co. KG Device for manufacturing formed parts by internal high pressure deformation

Also Published As

Publication number Publication date
JPS4913660B1 (ko) 1974-04-02
NL156939B (nl) 1978-06-15
AT286791B (de) 1970-12-28
DK137528B (da) 1978-03-20
ES359690A1 (es) 1970-06-16
DK137528C (ko) 1978-09-04
BR6804210D0 (pt) 1973-01-09
NL6815535A (ko) 1969-10-24
DE1919226A1 (de) 1969-11-13
FR1590522A (ko) 1970-04-13
DE1919226C3 (de) 1978-04-13
SE338756B (ko) 1971-09-20
GB1181044A (en) 1970-02-11
DE1919226B2 (de) 1977-08-11
BE722218A (ko) 1969-03-14
CH511120A (fr) 1971-08-15

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Legal Events

Date Code Title Description
PS Patent suit(s) filed
AS Assignment

Owner name: MARINE MIDLAND BANK(DELAWARE), NATIONAL ASSOCIATIO

Free format text: SECURITY INTEREST;ASSIGNOR:VERSON ALLSTEEL PRESS COMPANY, A CORP. OF DE.;REEL/FRAME:004456/0692

Effective date: 19850717

AS Assignment

Owner name: VERSON ALLSTEEL PRESS COMPANY, A CORP OF DE.

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MARINE MIDLAND BANK (DELAWARE) NATIONAL ASSOCIATION;REEL/FRAME:004553/0104

Effective date: 19860509

AS Assignment

Owner name: CONTINENTAL BANK N.A. AS AGENT

Free format text: SECURITY INTEREST;ASSIGNOR:ALLIED PRODUCTS CORPORATION, A DE CORP.;REEL/FRAME:005270/0416

Effective date: 19891215

AS Assignment

Owner name: ALLIED PRODUCTS CORPORATION, ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:VERSON ALLSTEEL PRESS COMPANY;REEL/FRAME:005238/0445

Effective date: 19900125

AS Assignment

Owner name: CONTINENTAL BANK N.A., ILLINOIS

Free format text: SECURITY INTEREST;ASSIGNOR:ALLIED PRODUCTS CORPORATION;REEL/FRAME:005748/0940

Effective date: 19900124

Owner name: ALLIED PRODUCTS CORPORATION, A CORP. OF DELAWARE

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CONTINENTAL BANK N.A.;REEL/FRAME:005635/0117

Effective date: 19900124