EP0417703A2 - Procédé de réalisation d'opérations de travaux d'usinages additionnelles aux pièces de travail en forme de barres et machines pour l'application de procédé - Google Patents

Procédé de réalisation d'opérations de travaux d'usinages additionnelles aux pièces de travail en forme de barres et machines pour l'application de procédé Download PDF

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Publication number
EP0417703A2
EP0417703A2 EP90117409A EP90117409A EP0417703A2 EP 0417703 A2 EP0417703 A2 EP 0417703A2 EP 90117409 A EP90117409 A EP 90117409A EP 90117409 A EP90117409 A EP 90117409A EP 0417703 A2 EP0417703 A2 EP 0417703A2
Authority
EP
European Patent Office
Prior art keywords
machine
carrying
rod
bending
devices
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.)
Withdrawn
Application number
EP90117409A
Other languages
German (de)
English (en)
Other versions
EP0417703A3 (en
Inventor
Matteo Piccoli
Maurizo Lanticina
Alessandro Ferrari
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 EP0417703A2 publication Critical patent/EP0417703A2/fr
Publication of EP0417703A3 publication Critical patent/EP0417703A3/de
Withdrawn legal-status Critical Current

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    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends

Definitions

  • the above invention relates to a method for the additional processing of rod-shaped workpieces and a machine for performing the method.
  • rod-shaped material is understood to mean any solid material or hollow material with any cross-section in which the cross-sectional dimensions are substantially smaller than the longitudinal dimension of the material.
  • additional machining is to be understood as any machining process that can be carried out on rod-shaped workpieces and differs from a pure bending process, e.g. B. means a drilling process, shearing process, punching process, crimping process, pressing process, pressing process or cutting process.
  • a bending machine has also become known which has a bending head and a tensioning device for gripping one end of the rod-shaped material.
  • this machine the feeding of the rod-shaped material, the feed and the rotation of the material about its longitudinal axis can be carried out in different ways to produce curved workpieces. In the known machine, however, the workpieces can only be bent.
  • the object of the above invention is to propose a method for machining rod-shaped workpieces and a machine for carrying out the method, wherein it should be possible in an automatic manner to carry out additional machining operations on the workpiece on the rod-shaped material before and / or after the bending process.
  • the object of the invention is achieved by a method according to the preamble of claim 1.
  • the method is characterized in that the workpiece is subjected to a further additional processing before and / or after the bending process, such as a cutting process, a drilling process, punching process or pressing process.
  • the machine according to the preamble of claim 2 is suitable for carrying out the method and is characterized according to the invention in that at least one device for carrying out additional machining operations, for separating, drilling, punching and pressing the workpiece is provided before and / or after the bending head of the machine .
  • the machine according to the invention is generally identified with 1.
  • the machine consists of a clamping device 2, which is displaceable along guide rails 3 of the machine frame 4.
  • Known and not shown drive and actuation devices are assigned to the tensioning device 2, with the aid of which the tensioning device 2 is controlled along the guides 3 and is movable. Furthermore, the tensioning device can carry out a rotary movement, as is illustrated by the double arrow.
  • the machine is equipped with an NC control unit, which is known for controlling machine tools.
  • 8 is a known bending head, which consists of a bending die and a pivotably arranged bending arm 10.
  • the invention comes in, which provides that, before and / or after the bending head 8, at least one device for carrying out additional machining operations, eg. B. a drilling device, a pushing device, a shearing device, a punching device, a rolling device, a pressing device or a cutting device is provided.
  • a device for carrying out additional processing operations for. B. a cutting device 12 is movable in the horizontal and vertical directions on the front 27 of the machine tool, as shown in Fig. 2, arranged. This device is shown in Fig. 2 with solid lines in the rest position and with dashed lines in the working position.
  • the separator 12 is e.g. B. mounted on a carriage 24 which rolls on guides 26 with the aid of rollers 25.
  • the guides 26 are z. B. attached to the front 27 of the machine 1, as in the Figures 3 and 4 is shown.
  • the cutting device 12 can thus perform a reciprocating movement transversely to the workpiece 7.
  • the cutting device 12 is also arranged to be adjustable in its vertical position in order to allow adaptation to the central axis of the rod-shaped workpieces 7 with different diameters.
  • the cutting device 12 is guided in a carriage-like manner on the carriage 24.
  • the cutting device 12 consists of a lower device and an upper device 29.
  • Both devices are equipped with clamping jaws 30 which have an inner profile which reproduces the shape of the rod-shaped workpiece to be machined. Deformations of the rod-shaped workpiece during the machining process can thus be avoided.
  • a cutting tool z. B. a knife 43 according to FIG. 4 use. This knife is driven by a known piston-cylinder unit 31, as shown in FIG. 3. With the processing unit described, for. B. arm and frame for chair frames according to Figures 5 and 6.
  • the inventive Machines can be equipped with a drilling device or a punching device 13, which is arranged in front of the bending head 8 in a suitable bearing, with the provision of drive means.
  • the drilling or punching device 13 can be moved in accordance with the longitudinal, transverse and vertical axes of the workpiece 7.
  • the tool is driven z. B. with the aid of a known piston-cylinder unit 32.
  • the drilling or punching device 13 is advantageously designed as a bottom and top half station in the form of clamping jaws, as has already been described for the shearing device 12.
  • This processing unit 23 can be mounted on the machine frame like the separating device 12, i. H. in the opposite position and on the front 27 of the machine.
  • the device 23, the z. B. is designed as a press device, is used to edit the workpiece ends.
  • the devices for carrying out additional machining operations can also be arranged on a platform or a revolver-like, rotatably arranged holder 34, as is shown in FIG. 2 using an example.
  • the rotatable bracket 34 can accommodate devices 35, 36 which are arranged on the circumference of the revolver 43. Two of these devices are e.g. B. formed as a pressing device 35 or as a punching device 36.
  • the platform-like holder 34 is advantageously movably mounted in the longitudinal plane and movable in the transverse direction relative to the rod-shaped material 7. Furthermore, the platform 34 can be rotatably mounted in the direction indicated by arrows.
  • the individual devices for carrying out additional processing operations and the two opposite platforms are advantageously arranged to be displaceable in a vertical plane.
  • the turret-like platform 34 can also be provided at the exit of the bending head or at another suitable location, in accordance with the machining operations to be carried out on the workpiece 7.
  • the operation of the machine according to the invention is as follows:
  • the clamping process of the rod-shaped workpiece in the device 2 takes place with the aid of the clamping device on the carriage 21, near the bending head 8.
  • the loading of the rod-shaped material into the machine tool itself takes place by a backward movement of the carriage 21 into the retracted position according to FIG. 2.
  • the rod-shaped material is then combined in one programmed workflow subjected to the intended processing steps, consisting of bending operations and additional processing operations. These machining processes can be programmed and monitored via the NC control device of the machine tool.
  • Frame parts 51 e.g. to produce chairs, as shown in FIG. 6, 7 can be produced as follows by program-controlled feeding of the rod-shaped material:
  • a device 12 for carrying out additional machining is used in the proposed machine.
  • the additional processing unit 13 for drilling or punching is used to carry out drilling and punching operations, which are also carried out in an automatic sequence. For example, for the manufacture of chair frames that require the execution of several punching and / or pressing operations, the additional processing operations are carried out in a programmed order, using additional processing units that are arranged on a platform or a revolver-like, rotating holder .
  • the processing unit 23 is used, for example, to produce components with tapering flattened or arbitrarily deformed ends.
  • additional processing units which are arranged to be movable relative to the rod-shaped material increases the degree of freedom of the additional processing operations to be carried out, to which the rod-shaped material is to be subjected at any point. If a device is provided for carrying out additional machining operations on a rotatable holder, for. B. a rotatable platform or a revolver-like bracket, it is possible to provide a variety of different devices for performing additional machining operations, with a small footprint for the device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP19900117409 1989-09-12 1990-09-10 Method of executing additional processes of work operations on bar material workpieces and machine for carrying out such method Withdrawn EP0417703A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2168789 1989-09-12
IT8921687A IT8921687A0 (it) 1989-09-12 1989-09-12 Procedimento per lavorazioni complementari di materiale astiforme e macchina per l'esecuzione del procedimento.

Publications (2)

Publication Number Publication Date
EP0417703A2 true EP0417703A2 (fr) 1991-03-20
EP0417703A3 EP0417703A3 (en) 1991-06-12

Family

ID=11185400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900117409 Withdrawn EP0417703A3 (en) 1989-09-12 1990-09-10 Method of executing additional processes of work operations on bar material workpieces and machine for carrying out such method

Country Status (2)

Country Link
EP (1) EP0417703A3 (fr)
IT (1) IT8921687A0 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0872292A2 (fr) * 1997-03-21 1998-10-21 BLM S.p.A. Machine pour le cintrage d'éléments allongés tels que tubes, barres ou profilés
EP0872293A2 (fr) * 1997-03-21 1998-10-21 BLM S.p.A. Machine pour le cintrage de tubes et barres
EP0950443A1 (fr) * 1998-04-17 1999-10-20 Burr Oak Tool and Gauge Company, Inc. Dispositif d'alimentation et de déchargement pour une machine à cintrer des tubes
FR2826889A1 (fr) * 2001-07-06 2003-01-10 Silfax Chariot pour machine a cintrer les tubes
DE102009024075A1 (de) * 2009-06-05 2010-12-09 Wafios Ag Biegevorrichtung für stabförmige Werkstücke
ITCO20120010A1 (it) * 2012-03-13 2013-09-14 Bertini Flii S N C Macchina curva tubi
US9067255B2 (en) 2011-07-08 2015-06-30 Wafios Aktiengesellschaft Bending apparatus for rod-shaped workpieces
DE102020107919A1 (de) 2020-03-23 2021-09-23 Schwarze-Robitec Gmbh Biegemaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1752716A1 (de) * 1968-07-05 1971-07-15 Ernst Stegmann Verfahren zum maschinellen Biegen von Draht- und Bandmaterial und Maschine zur Durchfuehrung des Verfahrens
DE2243293A1 (de) * 1972-09-02 1974-03-07 Lang Ludwig Biegevorrichtung
EP0088152A1 (fr) * 1982-03-08 1983-09-14 Bernard Matthey-Doret Dispositif pour le poinçonnage et/ou le cintrage de tubes en particulier pour le poinçonnage de trous à axes perpendiculaires l'un par rapport à l'autre et/ou pour le cintrage d'un tube à courbes dans des plans différents
US4523449A (en) * 1982-07-19 1985-06-18 Teijin Seiki Company Limited Grip-feed machines used with stamping and bending machines
WO1987000775A1 (fr) * 1985-08-05 1987-02-12 Gardner R F Machine de cintrage de tubes
EP0299857A2 (fr) * 1987-07-16 1989-01-18 Regie Nationale Des Usines Renault Machine de cambrage de fils métalliques

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1752716A1 (de) * 1968-07-05 1971-07-15 Ernst Stegmann Verfahren zum maschinellen Biegen von Draht- und Bandmaterial und Maschine zur Durchfuehrung des Verfahrens
DE2243293A1 (de) * 1972-09-02 1974-03-07 Lang Ludwig Biegevorrichtung
EP0088152A1 (fr) * 1982-03-08 1983-09-14 Bernard Matthey-Doret Dispositif pour le poinçonnage et/ou le cintrage de tubes en particulier pour le poinçonnage de trous à axes perpendiculaires l'un par rapport à l'autre et/ou pour le cintrage d'un tube à courbes dans des plans différents
US4523449A (en) * 1982-07-19 1985-06-18 Teijin Seiki Company Limited Grip-feed machines used with stamping and bending machines
WO1987000775A1 (fr) * 1985-08-05 1987-02-12 Gardner R F Machine de cintrage de tubes
EP0299857A2 (fr) * 1987-07-16 1989-01-18 Regie Nationale Des Usines Renault Machine de cambrage de fils métalliques

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0872292A2 (fr) * 1997-03-21 1998-10-21 BLM S.p.A. Machine pour le cintrage d'éléments allongés tels que tubes, barres ou profilés
EP0872293A2 (fr) * 1997-03-21 1998-10-21 BLM S.p.A. Machine pour le cintrage de tubes et barres
EP0872293A3 (fr) * 1997-03-21 1998-12-23 BLM S.p.A. Machine pour le cintrage de tubes et barres
EP0872292A3 (fr) * 1997-03-21 1998-12-23 BLM S.p.A. Machine pour le cintrage d'éléments allongés tels que tubes, barres ou profilés
US5927126A (en) * 1997-03-21 1999-07-27 Blm S.P.A. Bending machine for bending wire-like material, such as pipes, rods or section members
US5946960A (en) * 1997-03-21 1999-09-07 Blm S.P.A. Bending machine for bending pipes and wire-like material in general
EP0950443A1 (fr) * 1998-04-17 1999-10-20 Burr Oak Tool and Gauge Company, Inc. Dispositif d'alimentation et de déchargement pour une machine à cintrer des tubes
EP1366833A1 (fr) * 1998-04-17 2003-12-03 Burr Oak Tool and Gauge Company, Inc. Procédé pour décharger un tube cintré d'une machine à cintrer les tubes
FR2826889A1 (fr) * 2001-07-06 2003-01-10 Silfax Chariot pour machine a cintrer les tubes
DE102009024075A1 (de) * 2009-06-05 2010-12-09 Wafios Ag Biegevorrichtung für stabförmige Werkstücke
DE102009024075B4 (de) * 2009-06-05 2012-11-29 Wafios Ag Biegevorrichtung für stabförmige Werkstücke
US8561449B2 (en) 2009-06-05 2013-10-22 Wafios Aktiengesellschaft Bending apparatus for rod-shaped workpieces
US9067255B2 (en) 2011-07-08 2015-06-30 Wafios Aktiengesellschaft Bending apparatus for rod-shaped workpieces
ITCO20120010A1 (it) * 2012-03-13 2013-09-14 Bertini Flii S N C Macchina curva tubi
DE102020107919A1 (de) 2020-03-23 2021-09-23 Schwarze-Robitec Gmbh Biegemaschine

Also Published As

Publication number Publication date
IT8921687A0 (it) 1989-09-12
EP0417703A3 (en) 1991-06-12

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