EP0872293B1 - Machine pour le cintrage de tubes et barres - Google Patents

Machine pour le cintrage de tubes et barres Download PDF

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Publication number
EP0872293B1
EP0872293B1 EP98104917A EP98104917A EP0872293B1 EP 0872293 B1 EP0872293 B1 EP 0872293B1 EP 98104917 A EP98104917 A EP 98104917A EP 98104917 A EP98104917 A EP 98104917A EP 0872293 B1 EP0872293 B1 EP 0872293B1
Authority
EP
European Patent Office
Prior art keywords
plate
machine
disposed
machine frame
shaft
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.)
Expired - Lifetime
Application number
EP98104917A
Other languages
German (de)
English (en)
Other versions
EP0872293A3 (fr
EP0872293A2 (fr
Inventor
Maurizio Lanticina
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.)
BLM SpA
Original Assignee
BLM SpA
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 BLM SpA filed Critical BLM SpA
Publication of EP0872293A2 publication Critical patent/EP0872293A2/fr
Publication of EP0872293A3 publication Critical patent/EP0872293A3/fr
Application granted granted Critical
Publication of EP0872293B1 publication Critical patent/EP0872293B1/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
    • 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
    • B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
    • 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
    • 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
    • B21D43/14—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by turning devices, e.g. turn-tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus

Definitions

  • the above invention relates to a machine for bending of pipes and bar stock according to the preamble of claim 1 (see e.g. EP-A-0 417 703).
  • wire or bending machines elongated material such as rods or pipes
  • the base frame records a record that carries a car with one Gripper is equipped in a controlled manner is driven. This is also the case with machines of this type Bending head can be driven in a controlled manner.
  • the known pliers are designed in such a way that with them the end piece of a rod or a pipe is detectable and the possibility opens up to the workpiece move or rotate about its longitudinal axis.
  • the bending head is like this on the base frame of the machine mounted that an adjustment of the transverse position in relation to the Pliers axis, making small movements is made possible.
  • This design of the pipe bending machine enables a die, which is arranged on the bending device on the bending head, to be aligned with the axis of the rod material or the pipe gripped by the pliers. In this way it becomes possible to insert the workpiece into a recess in the die in order to then carry out the bending process.
  • the bending machines are manipulators in shape of robots for automatic feeding and unloading of Workpieces or transferring the workpieces to others Assigned work units.
  • the object of the above invention is to address the disadvantages to avoid the state of the art and, automatic transport of workpieces in the form of bars or pipes in a controlled manner without doing so Additional devices for manipulating the workpieces, e.g. for feeding or unloading the workpieces from the To have to provide bending machine and at the same time Propose bending machine that is simple in structure and a reduced number of axes to be checked having.
  • the object of the invention is in a generic bending machine thereby solved that the machine frame a plate records on the top of which the carriage is arranged so that it can be pivoted in a plane about an axis and the axle is located at the rear end of the plate is, and that drive means for performing a pivoting movement are operatively connected to the plate.
  • the drive means are advantageous continuously working tax and Monitoring devices assigned.
  • Rolling bearings are arranged on the shaft and in recesses used, which is provided in the base frame of the machine are.
  • a Piston-cylinder unit to be arranged on the machine frame, the piston being pivotable with the plate is connected.
  • a guide can be provided, that works with bearing and slide rails that on the lower surface of the plate in accordance with the Leadership are provided.
  • the plate has small elastic pivoting movements in Can refer to the specified positions, such as the work position or the pickup or unloading position.
  • a lever can be arranged below the plate, the lever being movable about the pivot axis of the plate.
  • the lever has an elongated opening into which a pin can be inserted, which is connected to the lower surface of the plate.
  • Drive means are operatively connected to the lever and further stops are provided for the plate, which cooperate with spring means which act on the machine frame in the vicinity of the stationary position of the plate.
  • the handling, for loading the to be processed Workpieces, due to a pivoting movement of the plate and moving the carriage equipped with the gripper tongs, can be processed simultaneously with the unloading process Work piece done, reducing manufacturing times be reduced.
  • a plate to accommodate the with the Gripper tongs provided wagon as a handling device allows the efficiency of the machines to increase significantly improve. Indeed, it is possible to use the pliers used positions to use the workpiece, e.g. to another processing unit like one Drilling device, a deburring device, a Threading device, a marking device or deliver a loading or unloading station.
  • Figure 1 shows schematically in side view, partly in Section, the bending machine according to the invention.
  • Figure 2 shows schematically in front view, the Bending machine with the bending head in a vertical position.
  • Figures 3 and 4 show schematically two views from above the bending machine with the movable plate in different swivel positions.
  • FIG. 1 the essential components of the Bending machine for bar or tubular material be removed.
  • the machine is a total of 1 characterized.
  • the machine 1 has a base frame 2, which as Prismatic elongated body is formed, which in the Cross section has approximately L-shaped shape.
  • the L-shaped body lies with one side 3 on the floor and thus aligns the second side 4 of the machine frame in the vertical direction.
  • the two ends of the elongated prismatic body limit an anterior Part (arrow F) and a rear part (arrow R) of the Bending machine 1.
  • a plate 5 is above the vertical Page 4 of the base frame 2 arranged.
  • a shaft 6 provided, extending from the lower surface 7 of the Plate rises.
  • the shaft 6 is partially in the upper Section of the machine frame 2 which is vertical Course 4 has built.
  • Bearings and swivel devices take the shaft 6 and connect them to the machine frame 2.
  • Rolling bearings 100, 101 arranged on the shaft 6 and inserted in recesses in the Machine frame 2 are incorporated.
  • the shaft 6 sets a pivot axis 23 for the plate 5 opposite the machine frame 2.
  • a reduction gear 102 that a controllable motor has is arranged in the interior of the machine frame 2 and operatively connected to a gear 103 via a pinion, which is mounted on the shaft 6.
  • a piston-cylinder unit 108 is advantageous arranged inside the machine frame 2 ( Figure 3).
  • the piston end is connected to the plate 5 via a joint connected.
  • the piston-cylinder unit 108 is connected via lines a hydraulic fluid (not shown) acted upon.
  • servo valves are in the Hydraulic circuit used.
  • a drive lever 105 between the plate 5 and the machine frame 2 intended.
  • the drive lever 105 has one at one end Through hole on which receives the shaft 6, the for performing a pivotal movement of the plate 5 is provided.
  • the lever 105 has an elongated opening 106.
  • a pin is used, the rises from the lower surface of the plate 5.
  • the piston-cylinder unit 108 is e.g. about a Ball joint connected to the lift 105.
  • the receiving surface of the machine frame 2, for the Storage of the plate 5 has stops 109 against which the plate 5 can be brought to the plant.
  • the stops 109 correspond to the end positions of the plate 5, e.g. a working position, a position for loading the Workpiece or a location for unloading the Workpieces.
  • the stop 109 is at the end of a spring means 110 arranged, which at the free end of the machine frame 2nd is provided.
  • the longitudinally extending recess 106 of the Lever 105 has dimensions around the pin 107 small To allow sliding movements. So there are also small ones Swiveling movements of the plate 5 possible.
  • a guide 8 is on the front side of the Machine frame 2 at the top, which is vertical extending side wall 4 is provided.
  • the rail 9 for the guides 8 are on the underside of the plate 5 arranged.
  • a trolley with pliers for clamping and aligning of the workpieces in the form of bars or tubes marked overall with 10 and at the top of the Plate 5 arranged.
  • Tensioning devices (not shown) for the pliers 10 form an axis 11, against which the longitudinal axis of the bent workpiece is aligned.
  • the car connected with pliers 10 is in Longitudinal direction of the plate 5, e.g. about tours (not shown) which is parallel to the axis 11 of the pliers 10 are aligned.
  • Controllable auxiliary motors 12, 13 are with the pliers 10 as well connected to the car.
  • the auxiliary motors 12, 13 allow the angular position of the Pliers 10 around the axis 11 (arrow Z) and the Feed movement of the plate 5 of the carriage for receiving the To control and adjust pliers 10 (arrow X).
  • a head 20 intended.
  • the head 20 is with the front of the Machine frame 2 operatively connected.
  • the between the head 20 and the machine frame 2nd provided connection allows the head 20, a Perform shifting movement or a swiveling movement.
  • a known bending device the total of 50 is marked at one end 21 of the pliers 10 intended.
  • the bending device 50 has a swivel arm 51 (Arrow Y) and is controlled by a pin (not shown), which is perpendicular to the axis 11 of the pliers 10 is arranged, pivotable.
  • the cone lays the Bending axis 52 of the machine 1 firmly.
  • a housing 60 which is on the rear part of the Machine frame 2 is arranged, takes the drive and control devices for the controllable auxiliary motors machine 1.
  • the drive devices are with a known NC device (not shown) connected.
  • Known Transductors (not shown) that are arranged various drive devices of the machine are a feedback of the control commands of the NC device.
  • the housing 60 is arranged in the interior of the room due to the L-shaped design of the machine frame 2 is circumscribed.
  • the plate 5 is e.g. as a manipulator for the removal a rectilinear workpiece 70 in the form of a Bar or tube from a loading station 71 used, the plate 5 is also used for Position a curved workpiece 80 in a Removal station 81 or in another Processing station.
  • a Swivel movement (arrow 61) counterclockwise Plate 5 allows until the axis is aligned 11 of the pliers 10 opposite the workpiece 70, which is straight is designed as a rod or as a tube.
  • the workpiece is arranged in a feed station.
  • the workpiece 70 is removed by moving the pliers back on the plate 5.
  • the plate 5 is then pivoted counterclockwise until the axis 11 of the pliers 10 is aligned with the axis of the bending unit 50.
  • the known bending processes are then carried out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Wire Processing (AREA)
  • Basic Packing Technique (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Claims (8)

  1. Machine (1) pour courber des tubes et des barres, avec un bâti de machine (2) qui comprend une tête de pliage (20) ainsi qu'un chariot avec une pince à griffes (10) pour saisir les pièces à façonner, caractérisée en ce que le bâti de machine (2) reçoit une plaque (5) au côté supérieur de laquelle est disposé le chariot, en ce que la plaque est apte à être pivotée d'une manière commandée dans un plan autour d'un axe (23) et que l'axe (23) est disposé à l'extrémité arrière de la plaque (5), et en ce que des moyens d'entraínement, pour exécuter le mouvement de pivotement, sont fonctionnellement reliés à la plaque (5).
  2. Machine (1) selon la revendication 1, caractérisée en ce que sont associées aux moyens d'entraínement, pour exécuter le mouvement de pivotement, des installations pour la commande permanente.
  3. Machine (1) selon la revendication 1, caractérisée en ce qu'il est prévu un arbre (6) qui dépasse de la face inférieure (7) de la plaque (5), en ce que l'arbre (6) est reçu d'une manière rotative par le bâti de machine (2) et que l'arbre (6) est fonctionnellement relié à des moyens d'entraínement.
  4. Machine (1) selon la revendication 3, caractérisée en ce que des paliers de roulement (100, 101) sont disposés sur l'arbre (6) et sont logés dans des évidements du bâti de machine (2).
  5. Machine (1) selon la revendication 1, caractérisée en ce qu'un dispositif d'entraínement (108), pour exécuter le mouvement de pivotement, est disposé sous la forme d'une unité à piston et à cylindre au bâti de machine (2) et en ce que le piston est relié fonctionnellement à la plaque (5).
  6. Machine (1) selon la revendication 3, caractérisée en ce qu'une roue dentée (103) est disposée sur l'arbre (6) et qu'il est disposé dans le bâti de machine (2) un moteur à engrenage (102) apte à être commandé, et en ce que le moteur à engrenage est en liaison avec la roue dentée (103).
  7. Machine (1) selon la revendication 1, caractérisée en ce que des guidages (8) sont disposés sur la surface du bâti de machine (2) qui reçoit la plaque (5), et que des baguettes de palier et de glissement (9) sont disposées sur la face inférieure (7) de la plaque (5) en coïncidence avec les guidages (8).
  8. Machine (1) selon la revendication 1, caractérisée en ce qu'un levier (105) est disposé en dessous de la plaque (5), que le levier (105) peut être amené à pivoter autour de l'axe (23) de la plaque (5) et présente un évidement oblong (106) qui reçoit un pivot (107) qui est disposé à la face inférieure de la plaque (5), en ce que des moyens (108), pour exécuter le mouvement de pivotement, sont fonctionnellement reliés au levier (105) et que des butées (109) pour la plaque sont disposées à un moyen à ressort (110) qui est prévu à l'extrémité libre du bâti de machine (2) en coïncidence avec les positions de travail de la plaque pivotante (5).
EP98104917A 1997-03-21 1998-03-18 Machine pour le cintrage de tubes et barres Expired - Lifetime EP0872293B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI970643 1997-03-21
IT97MI000643A IT1290140B1 (it) 1997-03-21 1997-03-21 Macchina per curvare tubi e materiali filiforme in genere

Publications (3)

Publication Number Publication Date
EP0872293A2 EP0872293A2 (fr) 1998-10-21
EP0872293A3 EP0872293A3 (fr) 1998-12-23
EP0872293B1 true EP0872293B1 (fr) 2001-02-28

Family

ID=11376528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104917A Expired - Lifetime EP0872293B1 (fr) 1997-03-21 1998-03-18 Machine pour le cintrage de tubes et barres

Country Status (8)

Country Link
US (1) US5946960A (fr)
EP (1) EP0872293B1 (fr)
JP (1) JP3494886B2 (fr)
KR (1) KR100320012B1 (fr)
BR (1) BR9806502A (fr)
DE (1) DE59800488D1 (fr)
ES (1) ES2154483T3 (fr)
IT (1) IT1290140B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105215230A (zh) * 2014-06-24 2016-01-06 深圳市鹏煜威科技有限公司 一种折弯机

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6241256B1 (en) * 1998-07-23 2001-06-05 Acadia Elastomers Corporation Gasket for heat exchanger and method and apparatus for manufacturing same
EP1350577A1 (fr) * 2002-04-03 2003-10-08 Trumpf Pulzer GmbH + Co. KG Machine de pliage des pièces en forme de barre ou tige, en particulier des tubes
CN102189191B (zh) * 2011-03-09 2013-04-10 苏州领航自动化科技有限公司 一种用于金属板折弯机的导向装置
ITMI20112305A1 (it) * 2011-12-19 2013-06-20 Crippa Spa Macchina curvatubi dotata di pantografo
ITCO20120010A1 (it) * 2012-03-13 2013-09-14 Bertini Flii S N C Macchina curva tubi
CN102764828B (zh) * 2012-07-30 2014-03-26 中冶建工集团有限公司 弯箍机
DE102013200850B4 (de) * 2013-01-21 2015-01-22 Wafios Aktiengesellschaft Vorrichtung zum Biegen strangförmiger Werkstücke
JP6219447B1 (ja) * 2016-05-09 2017-10-25 アイダエンジニアリング株式会社 ワーク保持ツールの着脱支持装置
CN112642892B (zh) * 2020-12-28 2022-08-30 柳州市荆大汽车制动管制造有限公司 一种弯管自动化设备
CN112642895B (zh) * 2020-12-28 2022-08-30 柳州市荆大汽车制动管制造有限公司 一种弯管自动化生产线
CN117299893B (zh) * 2023-11-29 2024-03-15 成都飞机工业（集团）有限责任公司 一种便于上料下料的弯管加工装置

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US2743756A (en) * 1953-07-20 1956-05-01 Cyril Bath Co Method of forming strip metal stock into shapes for making annular members
US3062266A (en) * 1956-06-29 1962-11-06 North American Aviation Inc Control of traversing right angle attachment for radial draw former
US3096807A (en) * 1960-09-20 1963-07-09 Cryil Bath Company Metal forming machine and auxiliary fixture and combination thereof
DE2514502C2 (de) * 1975-04-03 1983-01-27 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Vorrichtung zum Formbiegen von insbesondere rechteckigen Drähten oder Rohren zur Herstellung von rotationssymmetrischen Bauteilen
US4269054A (en) * 1978-03-17 1981-05-26 Eaton-Leonard Corporation Bending method
US4313324A (en) * 1979-04-25 1982-02-02 Eaton-Leonard Corporation Reversible bending machine
US4485658A (en) * 1983-05-31 1984-12-04 Stewart A K Carriage assembly for a tube bending machine
US5010758A (en) * 1984-03-23 1991-04-30 Chiyoda Kogyo Co., Ltd. Bending machine
GB8531440D0 (en) * 1985-12-20 1986-02-05 Rees J C Bending machine
IT8921687A0 (it) * 1989-09-12 1989-09-12 Blm Spa Procedimento per lavorazioni complementari di materiale astiforme e macchina per l'esecuzione del procedimento.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105215230A (zh) * 2014-06-24 2016-01-06 深圳市鹏煜威科技有限公司 一种折弯机
CN105215230B (zh) * 2014-06-24 2018-03-09 深圳市鹏煜威科技有限公司 一种折弯机

Also Published As

Publication number Publication date
JPH1157868A (ja) 1999-03-02
IT1290140B1 (it) 1998-10-19
KR100320012B1 (ko) 2002-11-30
US5946960A (en) 1999-09-07
ES2154483T3 (es) 2001-04-01
DE59800488D1 (de) 2001-04-05
BR9806502A (pt) 1999-12-14
EP0872293A3 (fr) 1998-12-23
ITMI970643A1 (it) 1998-09-21
JP3494886B2 (ja) 2004-02-09
EP0872293A2 (fr) 1998-10-21
KR19980080672A (ko) 1998-11-25

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