EP1786579B1 - Machine with multifunction hydraulic head for bending and forming metallic sheets - Google Patents

Machine with multifunction hydraulic head for bending and forming metallic sheets Download PDF

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Publication number
EP1786579B1
EP1786579B1 EP05760820A EP05760820A EP1786579B1 EP 1786579 B1 EP1786579 B1 EP 1786579B1 EP 05760820 A EP05760820 A EP 05760820A EP 05760820 A EP05760820 A EP 05760820A EP 1786579 B1 EP1786579 B1 EP 1786579B1
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EP
European Patent Office
Prior art keywords
machine
unit
bending
sheet metal
multifunction hydraulic
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.)
Not-in-force
Application number
EP05760820A
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German (de)
French (fr)
Other versions
EP1786579A1 (en
Inventor
Luigi Patuzzi
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.)
Finn Power Oy
Original Assignee
Finn-Power Oy
Finn Power Oy
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Filing date
Publication date
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Publication of EP1786579A1 publication Critical patent/EP1786579A1/en
Application granted granted Critical
Publication of EP1786579B1 publication Critical patent/EP1786579B1/en
Not-in-force legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/045With a wiping movement of the bending blade

Definitions

  • the present invention concerns a bending machine for sheet metal and/or metal profiles with a multifunction hydraulic head, according to the preamble of claim 1.
  • the present invention refers to a forming and bending machine for sheet metal and metal profiles for punching, deep drawing or picking, embossing and fastening or cold welding.
  • the machine with its multifunction hydraulic head replaces the traditional system for processing panels and sheets, which until now have usually been obtained using processing techniques with dedicated machines, with the result that further processing involved the use of additional machines specially created for each processing stage.
  • the present invention has applications in the mechanical industry and in particular in the production of mechanical machines and equipment for processing metal sheets and panels in general.
  • a bending machine of the type described above, marketed by the applicant, comprises a blade-holder structure with a "C" shaped cross-section, mobile in two reciprocally orthogonal directions with respect to the fixed bed, on which the bending blade(s) is (are) fixed.
  • a disadvantage of the known bending machines relates to the fact that the blade-holder structure employs bending tools whose use is rather limited, that is, generally only suitable for bending sheet metal.
  • Document EP-A-0742055 discloses a sheet-metal bending, profiling and cutting machine comprising a fuxed supporting structure bearing a lower pressing element on which the sheet is rested, to which is coupled an upper mobile pressing element, which mantains the sheet pressed on a lying plane against the lower pressing element.
  • the machine comprises a mobile structure having a substantially c-shaped transversal section which defines a chamber with a longitudinal development, said c-shaped structure bearing a couple of bending blades for bending the sheet when the structure is raised and lowered or moved forwards or backwards in respect of the sheet.
  • a tool-holder unit which is capable of moving alond the longitudinal development of the chamber, which tools are envisaged for carrying out profiling and/or cutting operation of the sheet.
  • sheet metal is also subject to further processing, for example it must undergo operations involving punching, deep drawing or picking, embossing and fastening, which involve almost fixed cold welding using special forming punches, or other operations to be performed with regard to the edges or the angular parts of the structure.
  • This processing method does not produce high-quality finished products, and in addition it is not possible to perform the processing on a continuous basis or with the same machine, as a result of which processing takes longer from an operational point of view, which makes it awkward to synchronize all of the various phases, particularly when dealing with a large number of parts to process.
  • the present invention proposes to provide a forming and bending machine for sheet metal and/or metal profiles with a multifunction hydraulic head, capable of eliminating or at least reducing the disadvantages described above.
  • the invention proposes to provide a forming and bending machine for sheet metal and/or metal profiles capable of increasing the working capacity of the forming machine, adding functionality that was previously not available.
  • the machine according to the invention proposes a basic purpose of making it possible to work sheet metal pieces, including those that are large in size, so that the above processes may be performed using a single multi-function machine.
  • a forming and bending machine for sheet metal and/or metal profiles with a multifunction hydraulic head that comprise a fixed bed for supporting the sheet metal being processed, a frame intended to support a toolholder structure on at least one carriage, preferably on a pair of carriages, that move in opposite directions along parallel worm screws, along a horizontal axis, in relation to a press that is suitable for clamping the piece of sheet metal during the bending process.
  • work assemblies are mounted that are interchangeable in relation to a common support structure, the said support structure being substantially C-shaped or in a shape that is suitable to contain the main body of the working head, which is accordingly integral with each carriage, and which is equipped with processing tools in the form of a fastening unit, an embossing unit, a punching unit and a picking or deep drawing unit.
  • Each of the said units house various tools that are suitable for all types of processing so that, in order to perform a particular type of operation on the sheet metal, the operator need only mount the processing tools onto the carriage/s, choosing the most appropriate tool for the purpose at hand.
  • a forming and bending machine 10 for sheet metal and/or metal profiles comprises a fixed bed that is not shown, for supporting the sheet metal 11 to be processed, which remains clamped against the same pressing element 12 placed against a fixed lower element 13 where the panel is inserted to be held in a horizontal position.
  • the machine 10 also has a frame 14 whose purpose is to support a pair of carriages 15 placed on revolving helical arbors 16 or worm screws, allowing translation in a horizontal direction of the carriages.
  • Each carriage 15 is equipped with its own multifunction hydraulic unit, which are all mounted onto a bracket 17 that is integral with the respective carriage and which are accordingly arranged in a symmetrical fashion around the centre of the machine.
  • the bracket 17 supports the work assemblies, which are made up of the units shown in figures 3 to 6 , or a fastening unit 18 ( figure 3 ), an embossing unit 19 ( figure 4 ), a punching unit 20 ( figure 5 ) and a picking or deep drawing unit 21 ( figures 6 and 7 ).
  • Each of the aforementioned work units is equipped with an upper work element or matrix and a lower fixed punch element, whose shape depends on the matrix template.
  • the panel or an edge thereof to be processed is inserted and placed onto the lower pressing element, so that, upon a command entered by an operator or by means of preset automatic commands, the mobile upper element or matrix comes into contact with the panel to be processed, pressing and forming it in accordance with the desired shape using the relevant pressing unit.
  • the fastening unit 18 is equipped with a matrix 22 and a pressing element 23, the embossing unit 19 is equipped with a matrix 24 and a pressing element 25, the punching unit 20 is equipped with a matrix 22 and a pressing element 23, and lastly the picking or deep drawing unit 21 is equipped with a matrix 28 and a pressing unit 29.
  • Figures 6 and 7 indicate an example of how the forming assembly operates, and in this case the picking or deep drawing assembly 21 presents the work tool 28 respectively in a lowered position and in contact with the sheet metal and in a raised position.
  • Any other tool equipped with templates other than those illustrated and described may be mounted onto the support structure 17, according to the type of processing to be performed on the sheet metal to be formed.
  • the forming assemblies can also be mounted onto any axis, including horizontal types and even upside-down, that is in an orientation in which the lower element is placed over the top.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

A multifunction hydraulic head for use with forming and bending machines for sheet metal and/or metal profiles is equipped with carriages (15) that slide horizontally on guide and shift shafts. Each carriage (15) of the said machine is equipped with a bracket (17) that is integral with the respective carriage, the bracket supporting the interchangeable work assemblies (18, 19, 20, 21) which include a mobile matrix (22, 24, 26, 28) and a fixed pressing unit (23, 25, 27, 29); furthermore, the sheet metal (11) is inserted between the matrices and the pressing unit of the installed unit, to be spot processed by the said work assemblies in accordance with the desired shape.

Description

    TECHNICAL FIELD
  • The present invention concerns a bending machine for sheet metal and/or metal profiles with a multifunction hydraulic head, according to the preamble of claim 1.
  • More particularly, the present invention refers to a forming and bending machine for sheet metal and metal profiles for punching, deep drawing or picking, embossing and fastening or cold welding.
  • The machine with its multifunction hydraulic head replaces the traditional system for processing panels and sheets, which until now have usually been obtained using processing techniques with dedicated machines, with the result that further processing involved the use of additional machines specially created for each processing stage.
  • The present invention has applications in the mechanical industry and in particular in the production of mechanical machines and equipment for processing metal sheets and panels in general.
  • BACKGROUND ART
  • It is known that processing semi finished laminates and/or metal sections, for example in order to produce metal box structures or plates with raised edges that are formed in various ways, is generally achieved using bending machines that usually comprise:
    • a fixed bed to support the material, for example sheet metal, to be bent;
    • a support frame for a clamping press;
    • a punch, being part of the press, and a corresponding counter-punch acting as means for clamping the material during the bending phase;
    • one or more bending blades that can be moved towards the material being processed;
    • appropriate kinematic motions designed to move the bending blade or blades along the bed for forming the piece clamped between the punch and the counter-punch;
    • means for moving the sheet metal or the profile towards the blades in working conditions;
    • transducers or sensors of various types, to control the process, connected to an electronic unit which controls the production process.
  • A bending machine of the type described above, marketed by the applicant, comprises a blade-holder structure with a "C" shaped cross-section, mobile in two reciprocally orthogonal directions with respect to the fixed bed, on which the bending blade(s) is (are) fixed.
  • A disadvantage of the known bending machines relates to the fact that the blade-holder structure employs bending tools whose use is rather limited, that is, generally only suitable for bending sheet metal.
  • Document EP-A-0742055 discloses a sheet-metal bending, profiling and cutting machine comprising a fuxed supporting structure bearing a lower pressing element on which the sheet is rested, to which is coupled an upper mobile pressing element, which mantains the sheet pressed on a lying plane against the lower pressing element. The machine comprises a mobile structure having a substantially c-shaped transversal section which defines a chamber with a longitudinal development, said c-shaped structure bearing a couple of bending blades for bending the sheet when the structure is raised and lowered or moved forwards or backwards in respect of the sheet. Inside said chamber is removably housed a tool-holder unit which is capable of moving alond the longitudinal development of the chamber, which tools are envisaged for carrying out profiling and/or cutting operation of the sheet.
  • However, it is well known that sheet metal is also subject to further processing, for example it must undergo operations involving punching, deep drawing or picking, embossing and fastening, which involve almost fixed cold welding using special forming punches, or other operations to be performed with regard to the edges or the angular parts of the structure.
  • In such cases, in fact, there are no automatic machines that automatically perform all of these processes, and as a result the only possibility is using dedicated machines, each of which is equipped with a tool for processing the sheet metal using appropriate assemblies.
  • This processing method, however, does not produce high-quality finished products, and in addition it is not possible to perform the processing on a continuous basis or with the same machine, as a result of which processing takes longer from an operational point of view, which makes it awkward to synchronize all of the various phases, particularly when dealing with a large number of parts to process.
  • Furthermore, another disadvantage that is quite significant in relation to traditional working systems, stems from the fact that it is not possible to carry out this work on lengthy items, panels or sheet metal.
  • DESCRIPTION OF THE INVENTION
  • The present invention proposes to provide a forming and bending machine for sheet metal and/or metal profiles with a multifunction hydraulic head, capable of eliminating or at least reducing the disadvantages described above.
  • In addition, the invention proposes to provide a forming and bending machine for sheet metal and/or metal profiles capable of increasing the working capacity of the forming machine, adding functionality that was previously not available.
  • This is achieved by a forming and bending machine for sheet metal and/or metal profiles, whose features are described in the main claim.
  • The dependent claims of the solution in question describe advantageous embodiments of the invention.
  • The main advantages of this solution, in addition to those that arise from the streamlined construction, concern first of all the fact that it is no longer necessary to use multiple machines dedicated to the processing to be accomplished, namely punching, deep drawing, embossing and fastening.
  • The machine according to the invention proposes a basic purpose of making it possible to work sheet metal pieces, including those that are large in size, so that the above processes may be performed using a single multi-function machine.
  • The advantages outlined above may be achieved by using a forming and bending machine for sheet metal and/or metal profiles with a multifunction hydraulic head, that comprise a fixed bed for supporting the sheet metal being processed, a frame intended to support a toolholder structure on at least one carriage, preferably on a pair of carriages, that move in opposite directions along parallel worm screws, along a horizontal axis, in relation to a press that is suitable for clamping the piece of sheet metal during the bending process.
  • On each of the said carriages, work assemblies are mounted that are interchangeable in relation to a common support structure, the said support structure being substantially C-shaped or in a shape that is suitable to contain the main body of the working head, which is accordingly integral with each carriage, and which is equipped with processing tools in the form of a fastening unit, an embossing unit, a punching unit and a picking or deep drawing unit.
  • Each of the said units house various tools that are suitable for all types of processing so that, in order to perform a particular type of operation on the sheet metal, the operator need only mount the processing tools onto the carriage/s, choosing the most appropriate tool for the purpose at hand.
  • As can be seen, the use of such a multifunction head can increase productivity, since the operator's functions are limited to a few simple manual actions to change the processing tools, with all of the advantages that can be derived therefrom.
  • DESCRIPTION OF THE DRAWINGS,
  • Other features and advantages of the invention will become evident on reading the following description of one embodiment of the invention, including the examples described below, with the help of the drawings shown in the attached pages, in which:
    • figure 1 shows a frontal schematic view of the machine equipped with at least one multifunction hydraulic head;
    • figure 2 shows a lateral schematic view of the machine fitted with the multifunction hydraulic head placed in relation to of the central processing unit;
    • figure 3 shows a lateral schematic view of one of the multifunction hydraulic heads represented by the fastening unit;
    • figure 4 shows a lateral schematic view of one of the multifunction hydraulic heads
      represented by the embossing or bending unit;
    • figure 5 shows a lateral schematic view of one of the multifunction hydraulic heads represented by the punching unit;
    • figures 6 and 7 show lateral schematic views of one of the multifunction hydraulic heads represented by the picking or deep drawing unit respectively in a lowered working phase, in contact with the piece and in a raised phase.
    DESCRIPTION OF ONE EMBODIMENT OF THE INVENTION
  • Making reference first of all to figure 1, a forming and bending machine 10 for sheet metal and/or metal profiles, comprises a fixed bed that is not shown, for supporting the sheet metal 11 to be processed, which remains clamped against the same pressing element 12 placed against a fixed lower element 13 where the panel is inserted to be held in a horizontal position.
  • The machine 10 also has a frame 14 whose purpose is to support a pair of carriages 15 placed on revolving helical arbors 16 or worm screws, allowing translation in a horizontal direction of the carriages.
  • There are two worm screws 16 because the machine is usually equipped with two carriages placed on revolving helical arbors arranged in a parallel orientation, one above the other in a vertical plane.
  • Each carriage 15 is equipped with its own multifunction hydraulic unit, which are all mounted onto a bracket 17 that is integral with the respective carriage and which are accordingly arranged in a symmetrical fashion around the centre of the machine.
  • The bracket 17 supports the work assemblies, which are made up of the units shown in figures 3 to 6, or a fastening unit 18 (figure 3), an embossing unit 19 (figure 4), a punching unit 20 (figure 5) and a picking or deep drawing unit 21 (figures 6 and 7).
  • Each of the aforementioned work units is equipped with an upper work element or matrix and a lower fixed punch element, whose shape depends on the matrix template.
  • The panel or an edge thereof to be processed is inserted and placed onto the lower pressing element, so that, upon a command entered by an operator or by means of preset automatic commands, the mobile upper element or matrix comes into contact with the panel to be processed, pressing and forming it in accordance with the desired shape using the relevant pressing unit.
  • As can be seen in the figure, the fastening unit 18 is equipped with a matrix 22 and a pressing element 23, the embossing unit 19 is equipped with a matrix 24 and a pressing element 25, the punching unit 20 is equipped with a matrix 22 and a pressing element 23, and lastly the picking or deep drawing unit 21 is equipped with a matrix 28 and a pressing unit 29.
  • Figures 6 and 7 indicate an example of how the forming assembly operates, and in this case the picking or deep drawing assembly 21 presents the work tool 28 respectively in a lowered position and in contact with the sheet metal and in a raised position.
  • Any other tool equipped with templates other than those illustrated and described may be mounted onto the support structure 17, according to the type of processing to be performed on the sheet metal to be formed.
  • The forming assemblies can also be mounted onto any axis, including horizontal types and even upside-down, that is in an orientation in which the lower element is placed over the top.
  • The invention is described above with reference to a preferred embodiment. It is nevertheless clear that the invention is susceptible to numerous variations within the scope of the appended claims.

Claims (5)

  1. A forming and bending machine for sheet metal and/or metal profiles with a multifunction hydraulic head, said machine being equipped with carriages (15) that slide horizontally on guide and shift shafts, whereby each carriage (15) of said machine is equipped with a bracket (17) that is integral with the respective carriage, characterized in that said bracket supports interchangeable work assemblies (18, 19, 20, 21) including a mobile matrix (22, 24, 26, 28) and a fixed pressing unit (23, 25, 27, 29) suitable for spot processing a metal sheet (11) that is inserted between said respective mobile matrix (22, 24, 26, 28) and said respective fixed pressing unit (23, 25, 27, 29) in accordance with a desired shape.
  2. A machine according to claim 1, characterised in that said interchangeable work assemblies include at least one fastening unit (18).
  3. A machine according to any one of the preceding claims, characterised in that said interchangeable work assemblies include at least one embossing unit (19).
  4. A machine according to any one of the preceding claims, characterised in that said interchangeable work assemblies include at least one punching unit (20).
  5. A machine according to any one of the preceding claims, characterised in that said interchangeable work assemblies include at least one picking or deep drawing unit (21).
EP05760820A 2004-06-29 2005-06-27 Machine with multifunction hydraulic head for bending and forming metallic sheets Not-in-force EP1786579B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000110A ITVR20040110A1 (en) 2004-06-29 2004-06-29 MULTIFUNCTIONAL HYDRAULIC HEAD APPLICABLE ON SHAPING MACHINES AND BENDING MACHINES OF METAL SHEETS AND METAL PROFILES
PCT/IT2005/000370 WO2006001047A1 (en) 2004-06-29 2005-06-27 Multifunction hydraulic head suitable for being applied to machines for bending and forming metallic sheets

Publications (2)

Publication Number Publication Date
EP1786579A1 EP1786579A1 (en) 2007-05-23
EP1786579B1 true EP1786579B1 (en) 2010-08-11

Family

ID=35063246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05760820A Not-in-force EP1786579B1 (en) 2004-06-29 2005-06-27 Machine with multifunction hydraulic head for bending and forming metallic sheets

Country Status (7)

Country Link
US (1) US20090282886A1 (en)
EP (1) EP1786579B1 (en)
AT (1) ATE477066T1 (en)
DE (1) DE602005022884D1 (en)
IT (1) ITVR20040110A1 (en)
RU (1) RU2385197C2 (en)
WO (1) WO2006001047A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103302176A (en) * 2013-07-08 2013-09-18 潍坊金富通机械设备有限公司 Multifunctional hydraulic angle iron processing machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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ES2901556T3 (en) 2006-09-26 2022-03-22 Optis Wireless Technology Llc Communications scheme for channel quality information
ITUB20154609A1 (en) * 2015-09-22 2017-03-22 Tecnoma Automazioni Ind Srl MULTIFUNCTIONAL MACHINE THAT CAN MAKE FOLDS, CURVES OPEN AND CLOSED IN THE SHEET, SEQUENTLY, IN THE ONLY STRUCTURE.
IT201700052500A1 (en) * 2017-05-15 2018-11-15 Salvagnini Italia Spa BENDING MACHINE FOR METAL SHEETS
CN109108157B (en) * 2018-07-06 2019-12-06 镇江市诚邦机械制造有限公司 multifunctional adjustable punching and folding integrated special machine for cable bridge
CN111482510B (en) * 2020-05-21 2024-05-10 厦门翼竑工贸有限公司 Spring piece forming machine for boneless windshield wiper
AT525594A1 (en) * 2021-10-22 2023-05-15 Trumpf Maschinen Austria Gmbh & Co Kg folding machine

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Publication number Priority date Publication date Assignee Title
US4610156A (en) * 1984-12-20 1986-09-09 The Stolle Corporation Progressive die apparatus having resilient tool support means
IT1258577B (en) * 1992-04-22 1996-02-27 Antonio Codatto HANDLING DEVICE FOR PRESSING BLADES FOR SHEETS
IT1278828B1 (en) * 1995-05-11 1997-11-28 Samat Srl MACHINE FOR BENDING, PROFILING AND CUTTING OF SHEETS
US6000268A (en) * 1998-12-02 1999-12-14 Van Mark Products Corporation Multifunction machine for modifying material in a bending brake
ES2190298B1 (en) * 2000-01-31 2004-10-16 Goiti, S.Coop METAL SHEET FOLDING MACHINE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103302176A (en) * 2013-07-08 2013-09-18 潍坊金富通机械设备有限公司 Multifunctional hydraulic angle iron processing machine
CN103302176B (en) * 2013-07-08 2015-01-21 潍坊金富通机械设备有限公司 Multifunctional hydraulic angle iron processing machine

Also Published As

Publication number Publication date
WO2006001047A1 (en) 2006-01-05
US20090282886A1 (en) 2009-11-19
RU2007101663A (en) 2008-08-10
DE602005022884D1 (en) 2010-09-23
ITVR20040110A1 (en) 2004-09-29
EP1786579A1 (en) 2007-05-23
ATE477066T1 (en) 2010-08-15
RU2385197C2 (en) 2010-03-27

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