EP1380363A1 - Machine à cintrer - Google Patents

Machine à cintrer Download PDF

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Publication number
EP1380363A1
EP1380363A1 EP02015761A EP02015761A EP1380363A1 EP 1380363 A1 EP1380363 A1 EP 1380363A1 EP 02015761 A EP02015761 A EP 02015761A EP 02015761 A EP02015761 A EP 02015761A EP 1380363 A1 EP1380363 A1 EP 1380363A1
Authority
EP
European Patent Office
Prior art keywords
bending
base body
workpiece
machine base
machine
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
EP02015761A
Other languages
German (de)
English (en)
Other versions
EP1380363B1 (fr
Inventor
Frank Schmauder
Winfried Richter
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 Werkzeugmaschinen SE and Co KG
Original Assignee
Trumpf Rohrtechnik 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 Rohrtechnik GmbH and Co KG filed Critical Trumpf Rohrtechnik GmbH and Co KG
Priority to DE50209344T priority Critical patent/DE50209344D1/de
Priority to EP20020015761 priority patent/EP1380363B1/fr
Priority to ES02015761T priority patent/ES2280457T3/es
Publication of EP1380363A1 publication Critical patent/EP1380363A1/fr
Application granted granted Critical
Publication of EP1380363B1 publication Critical patent/EP1380363B1/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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member

Definitions

  • the invention relates to a bending machine for bending rod-shaped and / or rod-like workpieces, in particular of Tubes, with a machine body, one on the machine body arranged bending tool and a workpiece feed device with a on the machine body in a workpiece feed direction movable workpiece holder, wherein the workpiece by movement of the workpiece holder opposite the Biegewerkmaschinemaschineable in the workpiece feed direction and by means of the bending tool to the machine base body is bendable.
  • Such a bending machine is known from DE-A-40 10 445.
  • Im Case of the prior art is a rotary bending tool on a Front side of a rectangular cross-section machine body arranged. Leave by means of the rotary bending tool tubes that are on top of the machine body in Tube longitudinal direction be postponed to the machine body turn back. In the area of their bent part, the machined pipes also run counter to the pipe feed direction.
  • the machine body of the prior art pipe bending machine forms a relatively due to its cross-sectional shape large "interference contour" from, i. a relatively large one Part of the machine body cross section lies in areas in which a deformed tube with a bent part run can. In the case of the prior art, therefore, there is a significant risk of collisions machined workpieces with the machine body.
  • the present invention has set to the goal.
  • the interference contour is advantageously at least at a bending tool end and thus in the area of the machine base held small, in Which most likely with collisions between machined workpieces and the machine body is to be expected.
  • Claim 3 relates to a bending machine according to the invention, in the case of those of the machine body on both sides is bevelled. Consequently, results in this invention type a small interference contour in both the legal and the Left Turn.
  • the claimed machine body can consequently used for bending machines exclusively to the right or exclusively to the left or both Right and left turn serve.
  • the workpiece holder the workpiece feed device and / or the mandrel rod holder the Dorn Wegzugs worn above at least one Chamfer of the machine body arranged on the top (Claim 7).
  • the result is bending of workpieces a very far-reaching freedom of choice the arrangement of the plane of the created bend in space.
  • the area above and to the side of the workpiece holder is free of distortion contours, in the area below the workpiece holder is the formed by the machine body obstacle small.
  • the claims 8 and 9 describe bending machines according to the invention, which advantageously as “inclined bed machines” are executed.
  • the bevel of the machine body is in order to support at least one of the longitudinal guides and / or at least one drive device for the workpiece holder or the mandrel bar holder used.
  • a bending machine 1 comprises a machine base body 2 in the form of a machine frame and a bending head 3, via a boom assembly 4 at an end face of the Machine base 2 is attached.
  • the bending head 3 has a support structure 5 and a bending tool 6.
  • the bending tool 6 is a conventional one Rotary bending tool. Other tool designs are conceivable. bending dies 7, 8 of the bending tool 6 are motorized about a bending axis 9 rotatable. About the bending axis 9 is a pivotable Swivel arm 10, the one of the bending die 7 associated jaw 11 and one of the bending die 8 associated jaw 12 leads. The entire bending head 3 is above the support structure 5 about an axis 13 rotatably mounted on the boom assembly 4. This in turn is pivotable about an axis 14 on the machine body 2 attached. The rotation or pivoting movement of Bending head 3 and the boom assembly 4 are as well as the remaining functions of the bending machine 1 numerically controlled.
  • a workpiece feed device 15 Provided on the machine main body 2 are a workpiece feed device 15 and a mandrel retraction device 16.
  • the workpiece feed device 15 comprises a workpiece feed carriage 17, which lie on his to the bending head 3 down Side as a workpiece holder 18 a conventional rotary chuck having. This serves in the example shown for fixation a formed as a pipe workpiece 19.
  • a workpiece holder drive 20 with electric drive motors 21, 22nd and gears 23, 24 is flanged to the workpiece feed carriage 17.
  • drive pinion on the Output sides of the gear 23, 24 mesh with a drive device 25 in the form of a rack of the workpiece holder drive 20.
  • the rack is connected to the machine base 2 screwed.
  • By means of the resulting rack and pinion drive is the workpiece 19 in the workpiece feed direction 26 opposite the bending head 3 and the bending tool 6 delivered.
  • the longitudinal guides 27, 28 lead to the machine body 2 in addition to the workpiece feed carriage 17 of the workpiece feed device 15 also a Dornruckzugswagen 29 Dorn Dornzugs observed 16.
  • a mandrel bar not shown in detail attached to a mandrel bar holder 30 of the Dornschreibzugwagen 29 and interspersed by the Dorn Havenzugswagen 29 starting the Workpiece feed carriage 17, the workpiece holder 18 and the Workpiece 19.
  • the mandrel bar on her Biegewerkmaschinemaschinection principleen end provided with a bending mandrel, the by moving the mandrel retracting carriage 29 between a utility vehicle and a retraction position inside the workpiece 19 can be moved back and forth.
  • the movement of the Dorn Wegzugwagen 29 is effected by means of a mandrel bar holder drive 31, in addition to an electric drive motor 32 and a transmission 33, a drive pinion not visible in the figures owns, which in turn also with the rack or drive device 25 meshes.
  • the bending machine 1 is the cross-sectional shape of the machine main body 2.
  • FIG. 1 has the machine base body 2 has a substantially trapezoidal shape Cross-sectional contour. This applies both to end plates 34, 35 as well as for an intermediate and opposite End plates 34, 35 recessed frame member 36, on the along the workpiece feed carriage 17 and the Dorn Wegzugswagen 29 are movable.
  • the workpiece holder 18 and the mandrel rod holder 30 are on top of the machine body 2 arranged. As FIG. 2 in particular clearly shows, This results in a cross-sectional contour for the entire bending machine 1 with a substantially triangular shape.
  • the machine body 2 below the workpiece holder 18 and the mandrel bar holder 30 extends the machine body 2 at both in the workpiece feed direction 26 extending longitudinal sides to the base to form bevels 37, 38.
  • the bevel 37 is straight, the chamfer 38 with bends Provided.
  • the chamfer 38 supports the longitudinal guide 28 as well the drive device 25 for guiding or for driving the Workpiece feed carriage 17 and the Dorn Wegzugswagens 29.
  • Die second longitudinal guide 27 is on the top of the machine base body 2 attached.
  • the drive motors 21, 22 and the gear 23, 24 of the workpiece holder drive 20 are as well as the drive motor 32nd and the gear 33 of the mandrel rod holder drive 31 of the chamfer 38 and are essentially parallel to the Bevel 38 aligned.
  • the drive parts mentioned are aligned with each other in Workpiece feed direction 26 arranged one behind the other.
  • the workpiece 19 is open bending tool 10 by means of the workpiece feed device 15 in the workpiece feed direction 26 and positioned in the circumferential direction.
  • the bending mandrel in the interior of the workpiece 19 is replaced by appropriate Method of Dornzugzugwagen 29 in its position of use transferred.
  • the bending tool 10 is closed.
  • the workpiece 19 thereby clamped between the bending die 7 and the clamping jaw 11. This results in the conditions shown in Fig. 1.
  • the cross-sectional contour of the machine base body 2 causes in Combination with the arrangement of the workpiece holder 18 and the Dornstangenhalter 30 and in conjunction with the orientation the electric drive motors 21, 22, 32 and the transmission 23, 24, 33, that in none of the illustrated processing cases to a collision of the opposite to the feed direction 26 bent end of the workpiece 19 with a part the bending machine 1 comes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP20020015761 2002-07-13 2002-07-13 Machine à cintrer Expired - Lifetime EP1380363B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE50209344T DE50209344D1 (de) 2002-07-13 2002-07-13 Biegemaschine
EP20020015761 EP1380363B1 (fr) 2002-07-13 2002-07-13 Machine à cintrer
ES02015761T ES2280457T3 (es) 2002-07-13 2002-07-13 Maquina dobladora.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020015761 EP1380363B1 (fr) 2002-07-13 2002-07-13 Machine à cintrer

Publications (2)

Publication Number Publication Date
EP1380363A1 true EP1380363A1 (fr) 2004-01-14
EP1380363B1 EP1380363B1 (fr) 2007-01-24

Family

ID=29724450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020015761 Expired - Lifetime EP1380363B1 (fr) 2002-07-13 2002-07-13 Machine à cintrer

Country Status (3)

Country Link
EP (1) EP1380363B1 (fr)
DE (1) DE50209344D1 (fr)
ES (1) ES2280457T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011029594A2 (fr) 2009-09-09 2011-03-17 Mewag Maschinenfabrik Ag Machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1527394A1 (de) * 1963-06-14 1969-12-18 Claude Ragache Universalbiegemaschine
DE4010445A1 (de) * 1990-03-13 1991-09-19 Mewag Maschinenfabrik Ag Rohrbiegemaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1527394A1 (de) * 1963-06-14 1969-12-18 Claude Ragache Universalbiegemaschine
DE4010445A1 (de) * 1990-03-13 1991-09-19 Mewag Maschinenfabrik Ag Rohrbiegemaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011029594A2 (fr) 2009-09-09 2011-03-17 Mewag Maschinenfabrik Ag Machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés
WO2011029594A3 (fr) * 2009-09-09 2011-07-14 Mewag Maschinenfabrik Ag Machine de pliage pour plier des pièces allongées notamment des tubes ou des profilés

Also Published As

Publication number Publication date
DE50209344D1 (de) 2007-03-15
EP1380363B1 (fr) 2007-01-24
ES2280457T3 (es) 2007-09-16

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