EP4419270B1 - Schwenkbiegemaschine - Google Patents

Schwenkbiegemaschine

Info

Publication number
EP4419270B1
EP4419270B1 EP22797629.7A EP22797629A EP4419270B1 EP 4419270 B1 EP4419270 B1 EP 4419270B1 EP 22797629 A EP22797629 A EP 22797629A EP 4419270 B1 EP4419270 B1 EP 4419270B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
clamping
bending
bending beam
pair
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.)
Active
Application number
EP22797629.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4419270C0 (de
EP4419270A1 (de
Inventor
Matteo VOLTAN
Matteo DAL LAGO
Stefano Speziali
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.)
Trumpf Maschinen Austria GmbH and Co KG
Original Assignee
Trumpf Maschinen Austria GmbH and Co KG
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 Trumpf Maschinen Austria GmbH and Co KG filed Critical Trumpf Maschinen Austria GmbH and Co KG
Publication of EP4419270A1 publication Critical patent/EP4419270A1/de
Application granted granted Critical
Publication of EP4419270C0 publication Critical patent/EP4419270C0/de
Publication of EP4419270B1 publication Critical patent/EP4419270B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003—Positioning devices
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
    • B21D43/105—Manipulators, i.e. mechanical arms carrying a gripper element having several degrees of freedom
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
    • B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/26—Stops
    • 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
    • B21D5/002—Positioning devices

Definitions

  • a disadvantage of the designs known from the prior art is that, with large-area support tables, it is relatively difficult for an operator to feed small-format workpieces into the center section of the workpiece holding unit. As a remedy for this, it is known to assign a conveyor device to the support table, which conveyor device conveys the workpieces to be bent from the front area of the support table in the depth direction backwards to the workpiece holding unit.
  • the folding machines known from the state of the art have the disadvantage that feeding small-format workpieces is not very ergonomic for an operator. and proper positioning and exact referencing of a workpiece to be machined can be difficult for an operator.
  • the object of the present invention was to overcome the disadvantages of the prior art and to provide technical means by means of which even small-format workpieces can be fed and positioned precisely without any particular effort for an operator.
  • the folding machine according to the invention offers the advantage that an operator can feed a workpiece to be machined to the workpiece manipulator from one of the two side areas of the support table, and the workpiece can then be automatically transferred to the central section of the tool holding unit.
  • This enables ergonomic workpiece feeding for the operator, both for small-format and relatively heavy workpieces.
  • an operator can always feed a workpiece precisely and easily to the specified workpiece manipulator because the first and second clamping tongs are clearly visible and easily accessible for the operator.
  • the operator can quickly and easily verify that the workpiece to be bent has assumed the planned reference position.
  • the workpiece manipulator may also be advantageous for the workpiece manipulator to be movable into and out of the interior of the bending beam, enclosed by the C-shaped beam cross-section, by means of a guide arrangement running parallel to the longitudinal direction of the bending beam. This allows for a compact design of the workpiece manipulator. Furthermore, by coupling the movement to the bending beam, the workpiece manipulator can be easily adjusted vertically and vertically.
  • the workpiece manipulator can be moved beyond at least one longitudinal end of the bending tools by means of the guide arrangement.
  • the visibility of the two clamping pliers and in particular of their stop surfaces is significantly improved for an operator.
  • first and second clamping tongs are each mounted on a translational adjustment axis, and these adjustment axes are provided for the controlled positioning of the first and second clamping tongs along the depth direction of the folding machine.
  • This allows for rapid and technically reliable positioning of a workpiece to be bent relative to the depth direction of the folding machine.
  • the transfer of the workpiece from the workpiece manipulator to the workpiece holding device can take place taking into account the target position of the first bending edge to be created.
  • first and second clamping pliers each comprise a pneumatically actuated actuating cylinder for closing the respective clamping pliers.
  • This enables alternate or independent activation of the clamping action against a workpiece. Accordingly, it is possible to utilize the clamping action of only one of the two clamping pliers. Pneumatic actuation of the clamping pliers offers a good compromise between technical simplicity, cost-effectiveness, and functional availability.
  • first and second clamping pliers each have a wedge-shaped, tapered actuating section, and that an actuating piston, extendable from the actuating cylinder, can be inserted into the actuating section with an expanding effect. This allows high and reproducibly available clamping forces to be generated against a workpiece even with a pneumatically actuated actuating cylinder.
  • first and second adjustment axes each to have an electric motor and a threaded spindle coupled to the electric motor for translational adjustment of the first and second clamping tongs.
  • first or second clamping tongs are configured to grip a side edge of a workpiece that runs parallel to the longitudinal direction of the bending beam and is located closest to the bending beam.
  • This utilizes the workpiece's rear boundary edge, which is essentially at the rear of the workpiece relative to the user's position and the depth direction of the folding machine, for clamping and referencing. This improves ergonomics and also provides visibility to the workpiece manipulator. This allows the operator to perform quick, uncomplicated, and repeatable positioning and transfer processes relative to the workpiece manipulator.
  • the first stop surface which is intended for referencing or referencing the positioning of a workpiece with respect to the longitudinal direction of the bending beam, runs vertically and transversely to the longitudinal direction of the bending beam and is positioned outside a clamping section of the first and second clamping pliers. This advantageously makes it possible to use the stop or referencing function of the first and/or second clamping pliers regardless of the active or inactive state of the clamping function of the first and/or second clamping pliers.
  • the workpiece manipulator can be configured to use the first stop surface of only one of the two clamping tongs to reference a workpiece in the longitudinal direction of the bending beam, while only using the other of the two clamping tongs to clamp the workpiece.
  • one of the clamping tongs for example the first clamping tong, ensures reference to the control-related zero point, while the other, for example the second clamping tong, clamps or holds the workpiece.
  • the workpiece manipulator 23 has at least one first clamping tong 25 and a second clamping tong 26 spaced apart therefrom in the longitudinal direction 12 of the bending beam 8 for establishing a clamping connection with respect to a workpiece 2 to be machined.
  • the clamping function of the two clamping tongs 25, 26 with respect to a workpiece 2 to be transported is preferably used selectively, i.e. used by only one of the two clamping tongs 25, 26, as shown in Fig. 4 can be seen by way of example. Accordingly, a workpiece to be transported is clamped either with the first clamping pliers 25 or, alternatively, with the second clamping pliers 26.
  • FIG. 5 An embodiment of the two clamping tongs 25, 26 of the workpiece manipulator 23 is shown in Fig. 5 shown.
  • the first and second clamping tongs 25, 26 are each mounted on a translational adjustment axis 35, 36.
  • These adjustment axes 35, 36 are provided for the controlled positioning of the first and second clamping tongs 25, 26 along the depth direction 16 of the folding machine 1.
  • An adjustment movement or a positioning process of the adjustment axes 35, 36 can occur independently of one another or be decoupled from one another.
  • the maximum available travel of the adjustment axes 35, 36 can be between 30 mm and 100 mm, in particular approximately 50 mm.
  • the first and second clamping pliers 25, 26 are designed to grip the side edge 52 of a workpiece 2 running parallel to the longitudinal direction 12 of the bending beam 8 and arranged closest to the bending beam 8.
  • the first stop surface 27, 28 of the clamping tongs 25, 26 is provided for referencing or for the referencing positioning of a workpiece 2 with respect to the longitudinal direction 12 of the bending beam 8.
  • the first stop surface 27, 28 extends vertically and transversely to the longitudinal direction 12 of the bending beam 8.
  • the first stop surface 27, 28 is preferably positioned outside a clamping section 53, 54 or outside the horizontally extending clamping surface of the clamping tongs 25, 26.
  • the first stop surface 27, 28 and the second stop surface 29, 30 can also be cambered or rounded.
  • a support body 56 of an additional manipulator 57 can protrude vertically from a horizontal table plane 55 of the support table 17.
  • This additional manipulator 57 has a rotary punch 58 that can be rotated about a vertical axis for rotating workpieces 2 to be machined about the vertical axis.
  • the rotary punch 58 is mounted on a substantially horizontal support arm, which extends from the support body 56 in the direction of the workpiece holding unit 3.
  • the support body 56 protrudes vertically in the longitudinal center 24 or in the region of the longitudinal center 24 of the support table 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP22797629.7A 2021-10-22 2022-10-20 Schwenkbiegemaschine Active EP4419270B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50844/2021A AT525594B1 (de) 2021-10-22 2021-10-22 Schwenkbiegemaschine
PCT/AT2022/060362 WO2023064971A1 (de) 2021-10-22 2022-10-20 Schwenkbiegemaschine

Publications (3)

Publication Number Publication Date
EP4419270A1 EP4419270A1 (de) 2024-08-28
EP4419270C0 EP4419270C0 (de) 2025-08-27
EP4419270B1 true EP4419270B1 (de) 2025-08-27

Family

ID=84044988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22797629.7A Active EP4419270B1 (de) 2021-10-22 2022-10-20 Schwenkbiegemaschine

Country Status (6)

Country Link
US (1) US20250242399A1 (enExample)
EP (1) EP4419270B1 (enExample)
JP (1) JP7813883B2 (enExample)
CN (1) CN118201723A (enExample)
AT (1) AT525594B1 (enExample)
WO (1) WO2023064971A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023126271A1 (de) * 2023-09-27 2025-03-27 EVOBEND GmbH Verfahren zur Fertigung einer Vertiefung mit einer Biegemaschine und dazu eingerichtete Biegemaschine

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1086365B (it) * 1977-09-19 1985-05-28 Salvagnini Transferica Spa Macchina per la produzione di pannelli di lamiera rettangolare con bordi piegati
JPH08168821A (ja) * 1994-12-19 1996-07-02 Murata Mach Ltd 曲げ機械
IT1280860B1 (it) * 1995-04-11 1998-02-11 Sapim Amada Spa Dispositivo per determinare la posizione di un foglio di lamiera in una pressa piegatrice, e pressa piegatrice comprendente tale
US5950484A (en) * 1996-09-26 1999-09-14 Reinhardt Maschinenbau Gmbh Bending center
DE19639590A1 (de) * 1996-09-26 1998-04-09 Reinhardt Gmbh Maschbau Biegezentrum
JPH11245185A (ja) * 1998-02-27 1999-09-14 Amada Co Ltd 板材加工機におけるワーク原点位置決め方法及びその装置
JP2001205343A (ja) * 2000-01-20 2001-07-31 Amada Co Ltd ワーク搬入装置
JP3749871B2 (ja) 2002-03-14 2006-03-01 協和マシン株式会社 板材曲げ加工機におけるワーク位置決め方法
ITVR20040110A1 (it) * 2004-06-29 2004-09-29 Finn Power Italia S R L Testata idraulica multifunzionale applicabile su macchine sagomatrici e piegatrici di lamiere e o profilati metallici
ITTO20050705A1 (it) * 2005-10-07 2007-04-08 Crea Srl Pressa piegatrice per pezzi di lamiera con manipolatore integrato in un dispositivo di posizionamento posteriore
AT509857B1 (de) * 2010-08-05 2011-12-15 Trumpf Maschinen Austria Gmbh Biegepresse mit einer werkteil-positionier- vorrichtung sowie ein verfahren zum betrieb
KR20130109583A (ko) * 2012-03-28 2013-10-08 주식회사 성우하이텍 벤딩 프레스 장치
JP2014079776A (ja) * 2012-10-16 2014-05-08 Amada Co Ltd ワーク搬入装置及びパネルベンダ
CN203778526U (zh) * 2014-04-22 2014-08-20 湖南龙光科技有限公司 折弯机
AT518560B1 (de) 2016-04-18 2018-01-15 Trumpf Maschinen Austria Gmbh & Co Kg Biegebalken für eine Schwenkbiegemaschine
AT519203B1 (de) 2016-10-14 2018-10-15 Trumpf Maschinen Austria Gmbh & Co Kg Hinteranschlag für eine Biegemaschine
CN112222241A (zh) * 2020-09-21 2021-01-15 宁波北仑百晟钣金件制造有限公司 一种钣金件的冲压与折弯成型工艺

Also Published As

Publication number Publication date
US20250242399A1 (en) 2025-07-31
EP4419270C0 (de) 2025-08-27
EP4419270A1 (de) 2024-08-28
AT525594B1 (de) 2025-01-15
JP2024540940A (ja) 2024-11-06
JP7813883B2 (ja) 2026-02-13
CN118201723A (zh) 2024-06-14
AT525594A1 (de) 2023-05-15
WO2023064971A1 (de) 2023-04-27

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