WO1991006383A1 - Procede de cintrage oppose d'une tole - Google Patents

Procede de cintrage oppose d'une tole Download PDF

Info

Publication number
WO1991006383A1
WO1991006383A1 PCT/EP1990/001446 EP9001446W WO9106383A1 WO 1991006383 A1 WO1991006383 A1 WO 1991006383A1 EP 9001446 W EP9001446 W EP 9001446W WO 9106383 A1 WO9106383 A1 WO 9106383A1
Authority
WO
WIPO (PCT)
Prior art keywords
bending
cheek
sheet
sheet metal
bent
Prior art date
Application number
PCT/EP1990/001446
Other languages
German (de)
English (en)
Inventor
Wolfgang Kutschker
Original Assignee
Reinhardt Maschinenbau Gmbh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6392261&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1991006383(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Reinhardt Maschinenbau Gmbh filed Critical Reinhardt Maschinenbau Gmbh
Priority to CA002067732A priority Critical patent/CA2067732C/fr
Priority to AT90913054T priority patent/ATE96062T1/de
Publication of WO1991006383A1 publication Critical patent/WO1991006383A1/fr

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
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/042—With a rotational movement of the bending blade

Definitions

  • the invention relates to a method according to the preamble of patent claim 1.
  • the bending cheek can only be used in one working direction, for example in the case of a pivoting movement from bottom to top in a clockwise direction.
  • a folding machine with a machine frame, lower beam, upper beam and bending beam for carrying out the method according to the invention is characterized in that a first rocker is provided on both end faces of the bending beam, which can be pivoted about the pivot axis of the bending beam the first rocker has a second rocker movably mounted, and that a guide is provided on the second rocker, which permits a substantially rectilinear movement of the bending beam running perpendicular to the pivot axis, which in turn runs essentially perpendicular to the direction of movement of the second rocker.
  • Figure 1 several successive to 8 steps in the opposite bending of a sheet
  • FIG. 9 shows a device for carrying out a sheet metal bend in opposite directions corresponding to FIGS. 1 to 8.
  • FIGS. 1 to 8 each schematically show the essential parts of a folding machine, namely a lower beam 1, an upper beam 2 and a bending beam 3.
  • Die Bending beam 3 is rotatably mounted on the machine frame (not shown) and can be pivoted about a pivot axis S, which in FIGS. 1 to 8 runs perpendicular to the plane of the drawing.
  • a sheet 4 is clamped by lowering the upper cheek 2 in the direction of arrow A, which protrudes with a sheet metal section 5 over the cheeks 1, 2.
  • the bending cheek 3 engages with its upper or bending surface on the underside of the sheet metal section 5.
  • This side is also called the first side of the sheet 4 in the following, it is opposite the upper or second side of the sheet 4.
  • FIG. 1 shows the initial state of the bending process.
  • the bending beam 3 is pulled back from the bent sheet metal section 5 in a first adjustment direction (arrow C) perpendicular to its pivot axis S, so that it - cf. FIG. 4 - can be pivoted freely around this bent sheet metal section 5 further upwards (arrow D) until, after pivoting by a total of approximately 180 °, it faces the second or upper side of the sheet 4.
  • the pivoting cheek 3 according to FIG.
  • the adjustment directions of the bending cheek 3 according to the arrows C and E in FIGS. 3 and 5 run only apparently parallel to one another.
  • the arrow C always runs parallel to the small side and the arrow E always runs parallel to the large side of the rectangle schematically representing the bending beam 3 in the drawing.
  • the two adjustment directions according to the arrows C and E are therefore always perpendicular to one another, and the arrow C has also pivoted through 90 ° during the transition from FIG. 3 to FIGS. 4 and 5, as indicated by the broken line in FIG is.
  • this adjustment direction (arrow E) runs perpendicular to the plane containing the first adjustment direction (arrow C) and the pivot axis S. In FIG. 5, this plane runs perpendicular to the plane of the drawing and parallel to arrow C.
  • the sheet-metal section 5a is bent in the opposite direction to the sheet-metal section 5 by pivoting the bending beam 3 downward by 90 ° in the direction of the arrow F or clockwise.
  • the sheet 4 bent in the opposite direction at its edge can now be removed from the folding machine.
  • the swivel bending machine is brought back into its starting position according to FIG. 1 by correspondingly adjusting the bending cheek 3 along arrows E and F.
  • the bending beam 3 acts on the first sheet metal side during the first bending process and on the second sheet metal side during the second bending process, as shown in FIGS. 1 and 7 is evident.
  • the adjustment of the bending beam 3 in the first adjustment direction (along the arrow C; FIG. 3) is necessary in order to be able to transfer the bending beam 3 from the first to the second sheet metal side via the bent sheet metal section 5.
  • the bending beam 3 (see FIG. 4) passes over the projecting part of the top beam 2, the bending beam 3 must also move in the second direction of adjustment in the direction of arrow E. can also be adjusted (cf.
  • FIG. 5 so that it can in turn be placed on a sheet metal section 5a protruding between the lower beam and the upper beam (cf. FIG. 7).
  • These two mutually perpendicular, reciprocating adjustment movements of the bending beam 3 according to the arrows C, C ⁇ and E, are therefore essential for the method according to the invention and ultimately ensure that an opposite sheet metal bending is possible without turning the sheet.
  • FIG. 9 schematically shows a folding machine 10 which is structurally set up so that the bending method explained with reference to FIGS. 1 to 8 can be carried out on it.
  • FIG. 9 shows a front view of only the right side of such a folding machine 10. The other side is correspondingly mirror-symmetrical.
  • FIG. 9 the upper beam 2 and the bending beam 3, which are mounted on a machine frame, are shown.
  • the bending beam 3, which can be pivoted about the pivot axis S, in FIG. 9 conceals the lower beam 1, which is also mounted in the machine frame 11 and is visible in FIGS. 1 to 8.
  • the upper cheek 2 can be moved up and down in the direction of arrow G, which corresponds to the arrows A and A ⁇ in FIGS. 1 and 6, for tensioning and releasing the sheet metal 4.
  • the upper beam 2 is connected to a hydraulic cylinder 12 attached to the machine frame 11.
  • the pivoting movement of the bending beam 3 about the pivot axis S is indicated in FIG. 9 by the arrows H, which correspond to the arrows B, D, F in FIGS.
  • the pivoting of the bending beam 3 takes place with the aid of a motor 13 fastened to the machine frame 11.
  • a second rocker 16 is rotatably mounted about an axis 15.
  • the axis 15 lies below the pivot axis S.
  • a piston-cylinder unit 18 is provided, the cylinder 19 of which is rigidly connected to the bending cheek 3 and the piston rod 21 of which is connected to the foot 17 ,
  • the cylinder 19 can also be guided in a straight line along the arrows I on the second rocker 16.
  • the piston-cylinder unit 18 thus forms a guide for the bending beam 3 in such a way that when the unit 18 is actuated, the bending beam 3 can be displaced in a straight line relative to the second rocker 16, specifically away from the pivot axis S or onto it Axis too.
  • This first adjustment movement of the bending beam 3 is represented by the arrows I, which correspond to the arrows C, CL in FIGS. 3 and 7.
  • the second adjustment movement mentioned above which is perpendicular to the plane containing the first adjustment direction I and the pivot axis S (drawing plane of FIG. 9), is realized with the aid of the second rocker 16. If this is pivoted about the axis 15 with the aid of a drive motor 22 indicated by a broken line in FIG. 9, the bending beam 3 or at least the working surface thereof which engages the sheet to be bent is adjusted perpendicular to the plane of the drawing in FIG. 9 according to the arrow E in FIG. 5.
  • E RSATZ B LATT It is possible to design the straight guide formed by the piston-cylinder unit 18 in the embodiment according to FIG. 9 in a different way, for example by sliding the bending cheek 3, whereby this cheek 3 has a special drive device, e.g. B. an electric motor with gear spindle is assigned.
  • the second rocker 16 could - instead of being pivotable about the axis 15 - also in another way, for. B. also by a straight guide, slidably connected to the first rocker 14.
  • the constructive design of the folding machine 10 must ensure that the adjustment possibilities of the bending beam 3 are given in the first and second adjustment directions (arrows C and E) explained in detail above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

Un procédé de cintrage opposé d'une tôle comprend les opérations suivantes: on applique la joue de pliage d'une machine à cintrer oscillante sur une première face d'un tronçon de tôle et l'on plie celui-ci, selon un angle prédéterminé, dans un premier sens de rotation; on retire ensuite du tronçon de tôle replié, la joue de pliage dans un premier sens de déplacement, perpendiculairement à son axe de pivotement et l'on continue de l'incliner, dans le premier sens de rotation, jusqu'à ce qu'elle soit tournée vers la deuxième face de la tôle opposée à la première face; on déplace la joue de pliage dans un deuxième sens de déplacement perpendiculaire au premier; on applique la joue de pliage, après déplacement correspondant de la tôle repliée entre la joue inférieure et la joue supérieure de la machine à cintrer, sur la deuxième face de la tôle et l'on plie celle-ci selon un angle prédéterminé, par pivotement de la joue de pliage dans un deuxième sens de rotation opposé au premier. Dans la machine à cintrer pour la mise en oeuvre de ce procédé, la joue de pliage est montée de manière à pouvoir exécuter deux mouvements perpendiculaires entre eux dans les premier et deuxième sens de déplacement.
PCT/EP1990/001446 1989-10-26 1990-08-30 Procede de cintrage oppose d'une tole WO1991006383A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002067732A CA2067732C (fr) 1989-10-26 1990-08-30 Procede de cintrage bidirectionnel de la tole
AT90913054T ATE96062T1 (de) 1989-10-26 1990-08-30 Verfahren zum gegenlaeufigen biegen eines bleches.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3935658.2 1989-10-26
DE3935658A DE3935658A1 (de) 1989-10-26 1989-10-26 Verfahren zum gegenlaeufigen biegen eines bleches

Publications (1)

Publication Number Publication Date
WO1991006383A1 true WO1991006383A1 (fr) 1991-05-16

Family

ID=6392261

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/001446 WO1991006383A1 (fr) 1989-10-26 1990-08-30 Procede de cintrage oppose d'une tole

Country Status (7)

Country Link
EP (1) EP0497780B1 (fr)
JP (1) JP3122126B2 (fr)
CA (1) CA2067732C (fr)
DE (2) DE3935658A1 (fr)
DK (1) DK0497780T3 (fr)
ES (1) ES2046795T3 (fr)
WO (1) WO1991006383A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111036737A (zh) * 2019-11-26 2020-04-21 歌尔股份有限公司 弯折压合装置及弯折压合方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006047108B4 (de) * 2006-09-27 2009-09-10 Ras Reinhardt Maschinenbau Gmbh Biegemaschine zum Biegen von Flachmaterial
DE102007039848B4 (de) * 2007-08-23 2009-10-15 Hans Schröder Maschinenbau GmbH Schwenkbiegemaschine zum Gegenbiegen eines Werkstücks aus Blech
DE102013106764A1 (de) 2013-06-27 2014-12-31 Ras Reinhardt Maschinenbau Gmbh Handhabungsvorrichtung und Biegeanlage sowie Verfahren zum Biegen eines Biegeteils
JP6269514B2 (ja) * 2015-01-13 2018-01-31 トヨタ自動車株式会社 動力線の曲げ加工方法
KR101933532B1 (ko) 2018-09-28 2018-12-28 한용운 고속회전형 패널 절곡장치 및 이를 이용한 패널 절곡방법
DE102019008118B4 (de) * 2019-11-21 2022-09-15 Wolfram Hochstrate Schwenkbiegemaschine insbesondere zum Gegenbiegen mit einer Duplex-Biegewange

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502518A1 (fr) * 1981-03-26 1982-10-01 Favrin Pierre Machine pour le pliage de toles en aller et retour sur plieuse
EP0338949A1 (fr) * 1988-04-20 1989-10-25 Dimeco Alipresse Societe Anonyme : Machine à plier les tôles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH392434A (de) * 1963-08-13 1965-05-31 Puell Werner Von Lagerung für lange Biegeladen an Abkantmaschinen
FR2597398B1 (fr) * 1986-04-16 1990-12-07 Favrin Pierre Presse plieuse a tablier pivotant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502518A1 (fr) * 1981-03-26 1982-10-01 Favrin Pierre Machine pour le pliage de toles en aller et retour sur plieuse
EP0338949A1 (fr) * 1988-04-20 1989-10-25 Dimeco Alipresse Societe Anonyme : Machine à plier les tôles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111036737A (zh) * 2019-11-26 2020-04-21 歌尔股份有限公司 弯折压合装置及弯折压合方法
CN111036737B (zh) * 2019-11-26 2021-08-27 歌尔股份有限公司 弯折压合装置及弯折压合方法

Also Published As

Publication number Publication date
ES2046795T3 (es) 1994-02-01
DK0497780T3 (da) 1993-11-29
EP0497780A1 (fr) 1992-08-12
JPH05500774A (ja) 1993-02-18
CA2067732A1 (fr) 1991-04-27
CA2067732C (fr) 2000-02-15
DE3935658A1 (de) 1991-05-02
DE59003171D1 (de) 1993-11-25
EP0497780B1 (fr) 1993-10-20
JP3122126B2 (ja) 2001-01-09

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