EP0979690A1 - Machine à dresser - Google Patents

Machine à dresser Download PDF

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Publication number
EP0979690A1
EP0979690A1 EP98710011A EP98710011A EP0979690A1 EP 0979690 A1 EP0979690 A1 EP 0979690A1 EP 98710011 A EP98710011 A EP 98710011A EP 98710011 A EP98710011 A EP 98710011A EP 0979690 A1 EP0979690 A1 EP 0979690A1
Authority
EP
European Patent Office
Prior art keywords
bridge
machine according
workpiece
drive
straightening
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
EP98710011A
Other languages
German (de)
English (en)
Other versions
EP0979690B1 (fr
Inventor
Frantisek Kubik
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.)
Kbh Produktions-Automation & Co Vertriebs-Kg GmbH
Original Assignee
Kbh Produktions-Automation & Co Vertriebs-Kg 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
Application filed by Kbh Produktions-Automation & Co Vertriebs-Kg GmbH filed Critical Kbh Produktions-Automation & Co Vertriebs-Kg GmbH
Priority to EP98710011A priority Critical patent/EP0979690B1/fr
Priority to DE59801256T priority patent/DE59801256D1/de
Priority to DE29810731U priority patent/DE29810731U1/de
Priority to AT98710011T priority patent/ATE204519T1/de
Publication of EP0979690A1 publication Critical patent/EP0979690A1/fr
Application granted granted Critical
Publication of EP0979690B1 publication Critical patent/EP0979690B1/fr
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
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments

Definitions

  • the invention relates to a bending straightener for elongated Workpieces with workpiece holders arranged on a machine table for rotatably grasping the ends of a workpiece, with at least two spaced on the machine table Straightening documents for supporting the workpiece in its longitudinal direction, with at least one between the standard documents arranged straightening stamp to act on the workpiece, as well with a by means of a drive in the direction of the workpiece and from this path adjustable actuator that the Directional stamp takes up, the actuator as Bridge is formed, which is the directional stamp in the vertical Escapes the workpiece and by means of at least one of the Drive driven actuator the bridge in one vertical level is adjustable.
  • a bending straightening machine of the type mentioned is from DE 196 47 194 A1 known. Since this is only a vertical load in the Workpiece can be initiated, regardless of which one The diameter of the workpiece can be simple and Way applied a symmetrical load on the workpiece become.
  • this bending straightener is structurally right elaborately designed because of the drive and the bridge plate are each stored separately in a base plate, which in turn a machine table that is to accommodate the directing workpiece.
  • the storage of the bridge plate takes place via cuffs, the legs of the bridge and compression springs enclose for resilient mounting of the bridge.
  • the drive drives a shaft that is stored in the machine table and Actuators on both sides of the machine table that act as cam disks are trained.
  • the cams act with rollers that are stored in the bridge. The of Actuating forces introduced to the drive are therefore not direct introduced into the bridge, whereby on the machine side during bending straightening quite high forces occur.
  • a bending straightener is also from DE 42 15 795 C1 known.
  • the actuator is a swivel device educated. It has a two-armed lever the one in the middle connected to the machine table Pivot bearing is mounted, at the free end of one arm, via a swivel head, the connection with the straightening stamp takes place and the drive engages at the free end of the other arm.
  • This known bending straightener has basic Disadvantages.
  • the storage of the straightening stamp in a swivel device requires that the direction of action of the straightening stamp over the entire straightening stroke is not linear, but along a circular path. This leads to an asymmetrical Loading of workpieces of different diameters their alignment process.
  • the stroke of the straightening die is limited. Moreover, is to store the swivel device in the machine table and it requires the design of the two-armed lever increased construction effort. Eventually, due to the action the drive via a spindle, which in turn is on the two-armed Lever acts, the machine forces on a long way directed from the actuator to the actuator.
  • CH 117 816 is a movable machine for straightening, Bending, embossing and similar work known.
  • the machine can work depending on whether one or the other another type of generation for the work process to be carried out is more economical, either by screwing one Press screw with a fixed toggle lever system or through Action on the toggle system without screwing the Press screw, are generated. With this machine, the Action of the force on the workpiece in a vertical Level. This machine is structurally very complex. The Knee lever system is not suitable, exact, minor Represent movements of the straightening element.
  • the task is solved with a bending straightener type mentioned in that the bridge in the machine table is movably mounted relative to this, as well as the drive arranged above the bridge and stored in the machine table is.
  • Bending straightener can be designed to be particularly simple in terms of construction.
  • the short distances from the drive to the bridge make it reliable avoided that high forces occur on the machine side if necessary, to a deformation of the relevant components, especially the drive train. This would have been negative Consequences for the quality of the desired bend.
  • the bridge resiliently mounted in the machine table is that the spring force against the feed movement of the token is effective.
  • the advantage of springy Storage of the bridge can be seen in the fact that the drive only serves the purpose of those stored in the bridge To move the directional stamp in the direction of the workpiece, and this against the force of the one or more springs acting on the Act on the bridge.
  • the storage of the drive and the control elements serve. There are therefore no separate bearing elements for the drive or the control elements required, their storage rather, it takes place in the same functional component.
  • Each bearing element connects, for example two stands and it is in the two bearing elements the shaft axially fixed, which in the region of its two ends Inclusion of the designed in particular as a cam Serves controls.
  • One of the bearing elements is expedient provided with a cantilever arm to which the drive is attached, the expediently a motor, in particular an electric motor, with a transmission for driving the shaft receiving the actuating elements. For reasons of space and around the driving forces optimally into the shaft To initiate, the drive is appropriately hanging on Cantilever attached.
  • the electric motor is preferably designed as a controlled motor. Its shaft can thus be defined Turn angle of rotation; this results in consideration of the Gear reduction and, for example, the system of the Cam disc on the roller an exact delivery path of the straightening stamp, which can move in the 1/100 mm range.
  • An advantageous design of the bending straightener provides that the bridge is slidably mounted in the uprights, especially about bearing rollers that contact the stands. This indirect storage of the bridge in the machine table enables a structurally simple, precise guidance of the bridge and thus the token associated with it.
  • control elements are preferred designed as cams.
  • the respective role and the cam can roll on each other, the Eccentricity of the cam the feed movement of the assigned Control element and thus the bridge.
  • the actuators on the drive side at a large distance supported by each other in a common shaft and accordingly also the bridge-side rollers in the area of both ends of the Bridge. The machine forces are thus via the control elements initiated in the roles in the immediate vicinity of the stand, so that at most small tilting moments initiated in the stand become.
  • a preferred development of the invention provides that the Bridge is cuffed at each end, which encloses the assigned stand.
  • the respective cuff consists in particular of two nested Pipes, the lower pipe with the machine table and the upper tube is connected to the bridge.
  • the the return movement the springs causing the bridge are preferably as Screw pressure springs trained.
  • a machine table 1 takes in the area of its upper, horizontal Surface 2 two workpiece holders 3. These serve the rotatable detection of the ends 4 of a workpiece 5, for example is designed as a cylinder rod.
  • the workpiece holders 3 have, for example, quills with center points 6, in corresponding countersinks in the ends of the workpiece 5 intervention. The assigned quill and so that the workpiece can be rotated.
  • the workpiece table 3 is the machine table 1 in the area of it upper surface 2 with two spaced apart Straightening documents 8 for supporting the workpiece 5 in its Provide longitudinal direction. In the middle between the two Straightening documents 8 is stored in the machine table 1 Measuring device 9 for determining the deflection of the workpiece 5.
  • a cantilever arm 15 is connected above the shaft 13.
  • a drive 16 consisting of an electric motor and gear attached, the output of the gear rotatably with the shaft end 17 of the shaft 13 facing this connected is.
  • a bridge 18 guided vertically. This consists of a lower one Bridge plate 19 and a beam-shaped attached to this Reinforcing element 20.
  • level 12 in the area of the ends the bridge 18, two cylindrical rollers 21 are rotatably supported the cams 29 due to the action of spring force contact bridge 18.
  • the bridge 18 takes in the vertical Escape the workpiece 5 in a vertical plane of symmetry the two workpiece holders 3 on a straightening stamp 22, the is positioned symmetrically to the bending level 12. So is ensured that when moving the bridge 18 vertically the Straightening punch 22 always on workpiece 5 from above acts regardless of the diameter of the workpiece having.
  • Each stand 10 is surrounded by a helical compression spring 23, the one hand on the upper surface 2 of the machine table 1, on the other hand supported on the underside of the bridge plate 19.
  • the force of the compression spring is so strong that it is in the bridge-mounted rollers 21 permanently against the cams 29 presses.
  • Each cuff 24 is marked by an upper one on the Underside of the bridge plate 19 attached tube 25 and an in this inserted tube 26, which is connected to the machine table 1 is connected.
  • the bridge 18 is guided in the four stands 10 via Rollers 27.
  • Each end of bridge 18 has four rollers 27, of which two roles in vertical alignment one above the other arranged to run on the associated stand 10.
  • the pairs of roles contact the facing sides of the two in the Area of the respective end of the bridge 18 arranged stand 10, so that a stable tilt of the bridge 18 in the Stands 10 is guaranteed.
  • the roles expediently have one inward curved peripheral surface, and the columns one corresponding outward curvature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP98710011A 1998-06-16 1998-06-16 Machine à dresser Expired - Lifetime EP0979690B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP98710011A EP0979690B1 (fr) 1998-06-16 1998-06-16 Machine à dresser
DE59801256T DE59801256D1 (de) 1998-06-16 1998-06-16 Biegerichtmaschine
DE29810731U DE29810731U1 (de) 1998-06-16 1998-06-16 Biegerichtmaschine
AT98710011T ATE204519T1 (de) 1998-06-16 1998-06-16 Biegerichtmaschine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98710011A EP0979690B1 (fr) 1998-06-16 1998-06-16 Machine à dresser
DE29810731U DE29810731U1 (de) 1998-06-16 1998-06-16 Biegerichtmaschine

Publications (2)

Publication Number Publication Date
EP0979690A1 true EP0979690A1 (fr) 2000-02-16
EP0979690B1 EP0979690B1 (fr) 2001-08-22

Family

ID=26061592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98710011A Expired - Lifetime EP0979690B1 (fr) 1998-06-16 1998-06-16 Machine à dresser

Country Status (2)

Country Link
EP (1) EP0979690B1 (fr)
DE (1) DE29810731U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1093867A2 (fr) † 1999-07-12 2001-04-25 Eitel Presses, Inc. Appareil de dressage avec moyen d'entraínement au partie supérieur du bâti de presse

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006050116B3 (de) * 2006-10-25 2008-04-24 Weil Engineering Gmbh Rundbiegemaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH117816A (de) * 1926-06-15 1926-12-01 Johann Muerner Maschine für Richt-, Biege-, Präge- und ähnliche Arbeiten.
US5253499A (en) * 1992-06-11 1993-10-19 Dana Corporation Method for straightening coupling shafts
DE19647894A1 (de) * 1996-11-20 1998-06-04 Kbh Produktions Automation Gmb Biegerichtmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH117816A (de) * 1926-06-15 1926-12-01 Johann Muerner Maschine für Richt-, Biege-, Präge- und ähnliche Arbeiten.
US5253499A (en) * 1992-06-11 1993-10-19 Dana Corporation Method for straightening coupling shafts
DE19647894A1 (de) * 1996-11-20 1998-06-04 Kbh Produktions Automation Gmb Biegerichtmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1093867A2 (fr) † 1999-07-12 2001-04-25 Eitel Presses, Inc. Appareil de dressage avec moyen d'entraínement au partie supérieur du bâti de presse
EP1093867B2 (fr) † 1999-07-12 2008-06-25 Eitel Presses, Inc. Appareil de dressage avec moyen d'entraînement au partie supérieur du bâti de presse

Also Published As

Publication number Publication date
EP0979690B1 (fr) 2001-08-22
DE29810731U1 (de) 1999-10-21

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