EP0924005B1 - Improvements introduced in modular tabletop systems for connecting metal pieces by flanging - Google Patents

Improvements introduced in modular tabletop systems for connecting metal pieces by flanging Download PDF

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Publication number
EP0924005B1
EP0924005B1 EP98204241A EP98204241A EP0924005B1 EP 0924005 B1 EP0924005 B1 EP 0924005B1 EP 98204241 A EP98204241 A EP 98204241A EP 98204241 A EP98204241 A EP 98204241A EP 0924005 B1 EP0924005 B1 EP 0924005B1
Authority
EP
European Patent Office
Prior art keywords
flanging
blade
final
unit
flange
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
EP98204241A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0924005A3 (en
EP0924005A2 (en
Inventor
Santos Casas Hoyos
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.)
Ingemat SL
Original Assignee
Ingemat SL
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 Ingemat SL filed Critical Ingemat SL
Publication of EP0924005A2 publication Critical patent/EP0924005A2/en
Publication of EP0924005A3 publication Critical patent/EP0924005A3/en
Application granted granted Critical
Publication of EP0924005B1 publication Critical patent/EP0924005B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
    • B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors

Definitions

  • the present invention refers to a modular tabletop system for connecting metal pieces by flanging according to the preamble of claim 1 (see e.g. US-A-3130770).
  • This connecting of metal pieces by flanging is a folding operation of the contour flange of an exterior sheet or panel, upon another sheet, or interior panel, by plastic mechanical deformation and so that the contour of both sheets are connected totally or partially.
  • Another object of the present invention is to provide a new arrangement of the flanging means (pre-flanging and final flanging blades) upon the sliding part of the flanging unit.
  • the flanging systems used presently, are based on two different concepts: a press flanging system and a movable tabletop flanging system.
  • the press flanging system in the mechanical press as well as in the hydraulic press, is carried out by means of a die, which is provided with some pawls that, duly operated, achieve the folding of the flange.
  • This flanging system requires the installation of a press on civil work, aside from the maintenance of the equipment being very complex. Besides, this system is costly and it proves to be costly to control the thickness of the package formed after flanging, it only being possible to attack the surrounding flange from a single direction.
  • the other flanging system in other words, the movable tabletop system, is based on the flanging units being placed in a working position and awaiting arrival of the pieces to be flanged, placed upon the cradle, and that reach their working position by means of a vertical operating system.
  • This flanging system also offers certain inconveniences such as the place where the pieces are loaded and unloaded being quite high up, which permits the possibilities of certain loading and unloading systems.
  • the cost of hydraulic operations is usually very high and requires a very high energy consumption, the weight of the machine also being very heavy.
  • the forces that are carried out in the flanging operation cause the flanging units to tend to come out of their operating position. Maintenance of the hydraulic cylinder that moves the cradle is complicated by the difficult access thereto from the outside. This system is also only capable of attacking the flange in one direction.
  • ES-A-2154529 discloses a preferably mechanowelded structure upon which is located a table constituted by a plate with fastening means of other additional elements such as suitable centering devices to ensure placement of the cradle in coordinates, the fastening means of the cradle itself, as well as supports of the flanging units, of the treading element and of the decentering supports to correctly place said treader.
  • the table is provided with two mechanical stops for the flanging operation: one for the pre-flanging step and the other one for the final flanging step.
  • These mechanical stops operate as ends of stroke of the slides of the flanging units, thus ensuring that the stroke always ends at the same point and position to achieve the required quality and so that the thickness of the package comprised of the exterior panel, the interior panel and the flange of the exterior panel that turns over the interior one, is constantly repeated.
  • the flanging units disclosed in ES-A-2154529 are interchangeable modular movable elements, whose operating means is constituted by hydraulic cylinders, one to produce tipping movement so that the approach and subsequent withdrawal of the flanging unit to the operating area, and a second hydraulic cylinder suitable to carry out the movements performing the two successive pre-flanging and final flanging operations take place.
  • the fixed part includes some guides with graphite inserts, upon which will slide the strips integral to the movable part, thus allowing relative linear movement thereof.
  • Each flanging unit is comprised of one part connected to the table, or tippable part, constituted by a tipping shaft support assembly, with anchoring means for the blade holder slide, transmitting the movement from the first cylinder by means of rods.
  • the mechanical stops provided for the different flanging units that are placed in the chosen points of the contour of the table, in order to correctly carry out the pre-flanging and final flanging operations are preferably comprised of a steel rivet-dolly.
  • the sliding means to operate the blades are preferably made out of symmetric tempered and ground steel strips that have means for anchoring to the sliding part of the flanging unit.
  • the flanging means located in the sliding part of the machine are preferably constituted by a blade holder with housing and fastening means of the pre-flanging blades and final flanging blades, the blades having a shape in accordance with the profile and contour of the final piece. These blades are complemented, for the contour corner areas of the piece, with detachable elements suitable for connection to the contiguous blades.
  • the structure and operation of the flanging units may be improved, with electric operation to achieve the movements of the sliding part of the machine, as well as the angular approach and withdrawal movement towards the working area being done with a pneumatic cylinder.
  • Improvement of the blade support structure and the shape itself and arrangement of the blades in order to allow a reduction of the distance between the pre-flanging and final flanging working areas, which reduces the cycling time of the system, has also been provided for.
  • elimination of one of the blade holders, and manufacturing in a single piece the pre-flanging blade and another auxiliary flanging support blade, that was considered in the structure of the cited patent application ES-A-2154529 are achieved. This involves an economic advantage.
  • the invention as defined in claim 1 provides improvements introduced in modular systems for connecting metal pieces by flanging, that solve the problems of conventional machines and improve the operation thereof. Further improvements are provided by the features defined in the dependent claims.
  • An improvement consisting of the electric operation included in each one of the flanging units that comprise a complete modular flanging system, is based on the following:
  • the tipping movement of the flanging unit is achieved by operation of a pneumatic cylinder that moves a rod system connected to the flanging unit, with the advantages that this involves, that have been referred to at the beginning of this specification.
  • the auxiliary blade is a portion of the final flanging blade itself. This reversal of arrangement of the blades that comprise each flanging unit, allows a reduction of the distance between the working areas of the blades, which reduces the cycling time of the system. Likewise, upon eliminating one of the blade holders and upon manufacturing in a single piece the pre-flanging blade and the auxiliary flanging support blade, the economic advantage is obvious.
  • the invention proposes primarily consists of including the reduction motor (1) to achieve the rising and lowering movements of the movable or sliding part of the flanging unit (2), referred to as number (25) and that supports the pre-flanging (15) and final flanging (14) blades.
  • the movement of the reduction motor (1) is transmitted to the spindle (7) by means of transmission by a toothed belt (8), in this embodiment shown in the figures.
  • This belt (8) runs between the pulleys (5) and (6) pierced in the ends of the drive shaft (3) and of the spindle (7).
  • the flanging unit (2) In the position shown in figure 1, the flanging unit (2) is already in a vertical position with the sliding part (25)raised so that the blades (14) and (15) sequentially attack the plates arranged in the support cradle (16) of the metal pieces to be connected. Prior to occupying this vertical position, the approximation of the assembly takes place, by means of the action of the pneumatic cylinder (11) to which the rod system generally referred to as number (12) is connected and linked to the end of an arm (24) of the fixed part of the flanging unit (2), rotating around the shaft (17) fixed to the support frame (18). When the pneumatic cylinder (11) operates the assembly tips around the tipping shaft (19).
  • the rotation of the motor causes the initial flanging operation upon the sliding part (25) of the flanging unit (2) lowering and the fixed part supporting the sliding guides remaining immobilized, which the arm (24) forms part of. Afterwards, in a combined action of angular and linear movements caused by the pneumatic cylinder (11) and the reduction motor (1), respectively, the final flanging and angular return of the assembly are proceeded with in order to release the worked pieces.
  • Reference (10) designates the elastic package that absorbs the force to which the complete mechanical system would be subjected, when the pre-flanging or final flanging force is exerted, since the reduction motor keeps on rotating, although the subsequent movement is checked by the existence of the mechanical stops (9). Thus, the sudden impact against these mechanical stops (9) is eliminated.
  • the elastic package (10) is mounted on the spindle itself (7).
  • the final flanging blade (14) occupies a position above the pre-flanging blade (15), both being in a juxtaposed position.
  • the bottom or pre-flanging blade has its own function as of the trapezoidal projection, which is seen in its section (figure 3) and the top part until it contacts with the final flanging blade (14).
  • the portion under said trapezoidal projection carries out the function of the auxiliary support blade that was used as an independent part in the prior art and specifically considered in the above cited patent of invention, with the advantages that have also been referred to.
  • the first step of folding of the flange (20) is shown, in other words, the pre-flanging position in which the corresponding blades fold the flange from its original position shown with dash lines, until the intermediate position corresponding to the solid line of this position a).
  • the flange (20) is folded by its corresponding blades from the intermediate position of the previous step, up to the final position in which it remains totally glued to the edge of the interior sheet (22).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Automatic Assembly (AREA)
  • Sewing Machines And Sewing (AREA)
  • Basic Packing Technique (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Package Closures (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP98204241A 1997-12-17 1998-12-14 Improvements introduced in modular tabletop systems for connecting metal pieces by flanging Expired - Lifetime EP0924005B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES009702619A ES2154529B1 (es) 1997-12-17 1997-12-17 Perfeccionamientos introducidos en los sistemas modulares de sobremesa para union por pestañado de piezas metalicas.
ES9702619 1997-12-17

Publications (3)

Publication Number Publication Date
EP0924005A2 EP0924005A2 (en) 1999-06-23
EP0924005A3 EP0924005A3 (en) 2001-03-14
EP0924005B1 true EP0924005B1 (en) 2002-11-27

Family

ID=8301529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98204241A Expired - Lifetime EP0924005B1 (en) 1997-12-17 1998-12-14 Improvements introduced in modular tabletop systems for connecting metal pieces by flanging

Country Status (7)

Country Link
EP (1) EP0924005B1 (es)
AR (1) AR017824A1 (es)
BR (1) BR9805554A (es)
CZ (1) CZ296492B6 (es)
DE (1) DE69809695T2 (es)
ES (2) ES2154529B1 (es)
PL (1) PL330340A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10332942B4 (de) * 2003-07-19 2005-12-15 Adam Opel Ag Niederhalter für eine Bearbeitungsvorrichtung

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1068910B1 (en) 1998-11-20 2003-07-16 Matrici, S.Coop. Modular system for seaming, and seaming head
DE20004498U1 (de) * 2000-03-14 2001-08-02 Kuka Schweissanlagen Gmbh Bördeleinheit
FR2818173B1 (fr) * 2000-12-18 2003-03-14 Process Conception Ing Sa Unite de sertissage
ES2230972A1 (es) * 2002-12-24 2005-05-01 Imgemat, S.A. Engatillador compacto perfeccionado.
ITTO20030906A1 (it) 2003-11-14 2005-05-15 Ol Ci S R L Macchina per la lavorazione di parti in lamiera metallica, in particolare macchina flangiatrice, e sistema di azionamento per una tale macchina.
DE102015015388A1 (de) * 2015-12-01 2017-06-01 Technische Universität Dortmund Verfahren zur Herstellung eines Blechkörpers aus wenigstens zwei Blechen
CN108435934B (zh) * 2018-02-13 2023-08-25 安徽鲲鹏装备模具制造有限公司 一种翻板式冷柜内胆双竖直边角线铆接机构
CN108176777B (zh) * 2018-02-13 2023-08-25 安徽鲲鹏装备模具制造有限公司 一种翻板式冷柜内胆端边角线铆接机构
CN108213230B (zh) * 2018-02-13 2023-08-25 安徽鲲鹏装备模具制造有限公司 一种翻板式冷柜内胆水平边角线铆接机构

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB232490A (en) * 1924-09-15 1925-04-23 Budd Edward G Mfg Co Improvements in machine for making automobile doors
US3130770A (en) * 1960-03-11 1964-04-28 British Fed Welder Clinching tools and units
SE461021B (sv) * 1988-03-21 1989-12-18 Volvo Ab Bockningsanordning
US5150508A (en) * 1991-06-28 1992-09-29 E. R. St. Denis & Sons, Limited Hemming machine and method
US5272903A (en) * 1992-07-15 1993-12-28 Craftmation, Inc. Hemming machine
CA2089813A1 (en) * 1992-10-14 1994-04-15 Gerald A. Brown Hemming press
US5454261A (en) * 1993-06-17 1995-10-03 Campian; Jon R. Hemming machine and method of operation
DE4412590C2 (de) * 1994-04-13 2001-07-19 Horst Matzner Fertigungstechni Vorrichtung zum Bördeln von Blechen
ES2145651B1 (es) * 1996-07-26 2001-02-16 Ingemat Sa Sistema modular de sobremesa para union por pestañado de piezas metalicas.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10332942B4 (de) * 2003-07-19 2005-12-15 Adam Opel Ag Niederhalter für eine Bearbeitungsvorrichtung

Also Published As

Publication number Publication date
EP0924005A3 (en) 2001-03-14
PL330340A1 (en) 1999-06-21
CZ419298A3 (cs) 1999-10-13
ES2154529A1 (es) 2001-04-01
ES2154529B1 (es) 2001-10-16
EP0924005A2 (en) 1999-06-23
CZ296492B6 (cs) 2006-03-15
DE69809695T2 (de) 2003-07-31
BR9805554A (pt) 1999-11-03
AR017824A1 (es) 2001-10-24
ES2187883T3 (es) 2003-06-16
DE69809695D1 (de) 2003-01-09

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