EP2210680A2 - Presse plieuse dotée d'une poutre d'entraînement et d'une poutre plieuse couplée élastiquement - Google Patents

Presse plieuse dotée d'une poutre d'entraînement et d'une poutre plieuse couplée élastiquement Download PDF

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Publication number
EP2210680A2
EP2210680A2 EP10000736A EP10000736A EP2210680A2 EP 2210680 A2 EP2210680 A2 EP 2210680A2 EP 10000736 A EP10000736 A EP 10000736A EP 10000736 A EP10000736 A EP 10000736A EP 2210680 A2 EP2210680 A2 EP 2210680A2
Authority
EP
European Patent Office
Prior art keywords
bending
drive
press
bar
length
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.)
Granted
Application number
EP10000736A
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German (de)
English (en)
Other versions
EP2210680A3 (fr
EP2210680B1 (fr
Inventor
Josef Gaggl
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
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Publication date
Application filed by Trumpf Maschinen Austria GmbH and Co KG filed Critical Trumpf Maschinen Austria GmbH and Co KG
Publication of EP2210680A2 publication Critical patent/EP2210680A2/fr
Publication of EP2210680A3 publication Critical patent/EP2210680A3/fr
Application granted granted Critical
Publication of EP2210680B1 publication Critical patent/EP2210680B1/fr
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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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/068—Drive connections, e.g. pivotal

Definitions

  • the invention relates to a bending press as described in the preamble of claim 1 and a method as described in the preamble of claim 16.
  • the two cheek parts of the upper cheek are preferably connected to each other by coupling members at the outer end portions, said coupling members connected via hinge axes with the cheek parts and spring elements, whereby a stable, neutral position is ensured in the unloaded state of the bending tool receiving cheek part.
  • the object of the invention is to provide a press with a two-part press beam, with which the force application required for a Biegeformvorgang can be brought in alignment with the positioning of the tools in the longitudinal direction of the press bar in alignment with a line of action of a force acting on the press bar reaction force.
  • This object of the invention is achieved by the reproduced in the characterizing part of claim 1 features.
  • the surprising advantage of this is that it compensates during the forming process deviations of the penetration depth of the bending tools relative to the bending length, caused by a deflection of the press and the table beam in dependence of the position of the tools by a position correction of acting as a bending beam portion of the press bar and so that a high angular accuracy is achieved on the workpiece.
  • an advantage is also an embodiment according to claim 2, characterized in that a change in position of the drive beam is achieved relative to the bending beam by selecting corresponding adjustment paths of the drive means.
  • the object of the invention is also achieved by a method according to the measures of claim 16.
  • the advantage is that thereby an approximately symmetrical deflection under load of the table beam and the bending beam is achieved whereby angular errors are largely avoided on the workpiece and often readjustments of the adjustment of the drive means are not required.
  • a bending press 1 in particular press brake 2, for the production of workpieces 3, between relatively zueinender adjustable bending tools 4 shown.
  • a machine frame 5 of the bending press 1 consists for example of a bottom plate 6 on the vertically towering, spaced from each other and aligned parallel to each other, side cheeks 7, 8 are arranged. These are preferably connected by a solid, formed for example from a sheet metal part cross member 9 at its distance from the bottom plate 6 end portions.
  • the side cheeks 7, 8 are formed to form a free space for forming the workpiece 3 is approximately C-shaped, with a fixed, on the bottom plate 6 rising table bar 12 is attached to Frontstim lake 10 of bottom-side legs 11 of the side cheeks 7, 8.
  • the press bar 16 is in the exemplary embodiment shown by two spaced-apart drive means 17, 18 of the drive assembly 19 - according to double arrow 20 - adjustable.
  • the drive assembly 19 is in the illustrated embodiment, a hydraulic drive with double-acting hydraulic cylinders 23 as the drive means 17, 18, wherein the piston rods 24 are connected to the press beams 16 via ball spherical bearings 25 with the press bar 16, whereby in a restricted area a pivoting movement of the press bar 15th ,
  • By different adjustment of the drive means 17, 18, in one to a Front surface of the press bar 16 parallel plane is made possible and thus an immersion depth of the bending tools 4 can be influenced.
  • the hydraulic cylinders 23 are fastened in the embodiment shown with housings 26 on the cross-member 9. But it is also possible training after which the housing 26 are attached directly to the side cheeks 7, 8.
  • the press bar 16 is designed in two parts and consists of a drive bar 27 which is drivingly connected via the ball spherical bearing 25 with the piston rods 24.
  • the drive bar 27 protrudes into a, over an entire length 28 of the press bar 16 extending.schlitzförmige receptacle 29 of a fitted with the bending tool 4 bending beam 30 which is adjustably mounted in the linear guide assemblies 15 for the vertical adjustment, whereby an adjustment of the bending tools 4th receiving support surfaces 21. 22 of the table beam 12 and the bending beam 30 in mutually parallel planes 31, 32 is ensured.
  • the drive beam 27 and the bending beam 30 have in the slot-shaped receptacle 29 facing contact surfaces 33, 34, wherein the contact surface 33 of the drive beam 27 in the direction of the length 28 is arcuately curved, whereas the contact surface 34 of the bending beam 30 in the receptacle 29 rectilinear and extends in a plane parallel to the plane 31 of the support surface 21 of the bending beam 30 level 35.
  • the drive beam 27 with the bending beam 30 connecting, elastic coupling element 36 - will be discussed in detail later - is a play-free contact of the contact surfaces 33, 34 of the drive beam 27 and the bending beam 30 in the slot-shaped receptacle 29 ensures.
  • the coupling element 36 is formed according to the embodiment shown by a spring assembly 37 in apertures 38, 39 of the drive beam 27 and the bending beam 30, wherein the force caused by the spring assembly 37 spring force is greater than the weight of the bending beam 30 plus the occurring Acceleration forces, which occurs during an adjustment movement of the press bar 16 in an upper end position.
  • the drive bar 27 protrudes into the slot-shaped receptacle 29 of the bending beam 30, with the contact surface 34 extending in the plane 35 and the arc-shaped contact surface 33 of the drive beam 27 facing it touching linearly.
  • a vertically measured distance 43 of the opening 38 is smaller than a distance 44 of the opening 39 in the drive bar 27, based on a vertex 45 of the contact surface 33rd
  • Fig. 5 is the bending press 1 with the two-part baler bar 16, consisting of the drive assembly 19 positively coupled drive bar 27 and in the guide assemblies 15 - shown according to arrow 50 - adjustable bending beam 30 and the method of the invention will be explained in the following description.
  • the placement of the bending press 1 with the bending tools 4 in the bending beam 30 and the table bar 12 shows an eccentric arrangement of the bending tools 4 as it is often chosen when, for example, on the length 28 of the bending beam 30 distributed more tool sets for different bending operations are used.
  • Such assembly means a different application of force at the force introduction points, for example, the ball spherical bearings 25 and an asymmetrical formation of bending occurring at the bending beam 30 and table beams 12 deflection, which then leads to bending inaccuracies in conventional bending presses with one-piece press beams, since an immersion depth of Bending tools 4 fails in an eccentric arrangement and thus it leads to the inaccuracies in a predetermined bending angle for a certain adjustment, which is measured and controlled leads.
  • the elastic coupling element 36th allows the power line 49 to transfer the compressive force between the drive beam 27 and the bending beam 30 in the direction of the length 28 displaced and thus for the forming process of the workpiece 3, due to the eccentricity of the assembly with the bending tools 4 reaction force occurring in accordance with - arrow 50 - in aligned agreement.
  • the pivoting of the drive bar 27 is effected by different adjustment of the drive means whereby, as shown, the pin bearing 25 occupy a correspondingly different position and a pivotal position of the drive bar 27 is achieved.
  • the maximum inclination of the drive beam 27 from its horizontal neutral position is once a segment height 51 of the arcuately curved contact surface 33, wherein the segment height 51 is selected depending on the respective length 28 of the drive beam 27.
  • segment height 51 is selected depending on the respective length 28 of the drive beam 27.
  • to position the power transmission point of the drive beam 27 according to the position of the tool set is only a small Segment height 51, to a degree between about 0.2% to about 2.0% of the length 28 of the drive beam 27 sufficient.
  • FIG. 5 an embodiment of the coupling element 36 between the drive beam 27 and the bending beam 30 is shown, which is formed from at least one pressure-elastic plastic pad 52, the play-free contact surfaces 33, 34, regardless of the position of the drive beam 27, and the relative movement between the drive bar 27th and the bending beam 30 during a pivoting movement of the drive beam 27, guaranteed.
  • the bending press 1 according to the invention with the two-part baler bar 16 allows, as already partially described above, the force application point on the bending beam 30 by pivoting the drive beam 27 by means of appropriately preselected adjustment of the drive means 17, 18 in an aligned position with the power line 49 for a forming process on the Plant part 3 applied force to bring.
  • a work program data for example, stored in a data storage parameters, eg position of the tool sets or a loading scheme of the bending press 1, with one or more bending stations from cooperating bending tools., The bending length, the workpiece data, the Geometry of the drive beam 27 etc.
  • the forming process by the adjustment of the drive beam 27 in the pivoted position by a same adjustment of the drive means and thus takes place the adjustment of the bending beam 30 to that for a given deformation, e.g. Bending angle, required adjustment to achieve a required for the bending angle immersion depth of the bending tools.
  • a given deformation e.g. Bending angle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP10000736.8A 2009-01-27 2010-01-26 Presse plieuse dotée d'une poutre d'entraînement et d'une poutre plieuse couplée élastiquement Not-in-force EP2210680B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0013609A AT507808B1 (de) 2009-01-27 2009-01-27 Biegepresse mit einem antriebsbalken und elastisch gekuppelten biegebalken

Publications (3)

Publication Number Publication Date
EP2210680A2 true EP2210680A2 (fr) 2010-07-28
EP2210680A3 EP2210680A3 (fr) 2014-12-17
EP2210680B1 EP2210680B1 (fr) 2021-02-24

Family

ID=42115696

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10000736.8A Not-in-force EP2210680B1 (fr) 2009-01-27 2010-01-26 Presse plieuse dotée d'une poutre d'entraînement et d'une poutre plieuse couplée élastiquement

Country Status (2)

Country Link
EP (1) EP2210680B1 (fr)
AT (1) AT507808B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2479022A1 (fr) * 2011-01-24 2012-07-25 Osterwalder AG Presse à poudre
EP2581144A1 (fr) * 2011-10-12 2013-04-17 Weinbrenner Maschinenbau GmbH Cintreuse
WO2013144036A1 (fr) * 2012-03-26 2013-10-03 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Presse hydraulique à fonctionnement cadencé
CN113526853A (zh) * 2021-08-05 2021-10-22 许成燕 一种钢化玻璃加工系统及加工工艺

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138286A1 (de) 1991-11-21 1993-05-27 M & S Brugg Ag Presse

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2819448B2 (ja) * 1994-10-20 1998-10-30 丸機械工業株式会社 油圧プレスブレーキ
ITTO20020904A1 (it) * 2002-10-17 2004-04-18 Alberto Arduino Pressa piegatrce con trave portautensile sostanzialmente

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138286A1 (de) 1991-11-21 1993-05-27 M & S Brugg Ag Presse

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2479022A1 (fr) * 2011-01-24 2012-07-25 Osterwalder AG Presse à poudre
WO2012101103A1 (fr) * 2011-01-24 2012-08-02 Osterwalder Ag Presse à poudre
CN103328197A (zh) * 2011-01-24 2013-09-25 奥斯瓦尔德股份公司 粉末压制机
EP2581144A1 (fr) * 2011-10-12 2013-04-17 Weinbrenner Maschinenbau GmbH Cintreuse
WO2013144036A1 (fr) * 2012-03-26 2013-10-03 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Presse hydraulique à fonctionnement cadencé
CN113526853A (zh) * 2021-08-05 2021-10-22 许成燕 一种钢化玻璃加工系统及加工工艺

Also Published As

Publication number Publication date
EP2210680A3 (fr) 2014-12-17
AT507808A1 (de) 2010-08-15
AT507808B1 (de) 2011-02-15
EP2210680B1 (fr) 2021-02-24

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