EP0949021B1 - Vorrichtung zum Formen von Draht, mit einer Drahtbremseinrichtung - Google Patents
Vorrichtung zum Formen von Draht, mit einer Drahtbremseinrichtung Download PDFInfo
- Publication number
- EP0949021B1 EP0949021B1 EP99105833A EP99105833A EP0949021B1 EP 0949021 B1 EP0949021 B1 EP 0949021B1 EP 99105833 A EP99105833 A EP 99105833A EP 99105833 A EP99105833 A EP 99105833A EP 0949021 B1 EP0949021 B1 EP 0949021B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wire
- axis
- program
- rotatable
- holder
- 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
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Classifications
-
- 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
- B21F1/008—Bending wire other than coiling; Straightening wire in 3D with means to rotate the wire about its axis
-
- 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
Definitions
- the invention relates to a device according to the preamble of claim 1.
- a wire-forming device WAFIOS-FTU 3
- This device has a flange (118) which is fixed to the frame and has an extension arm (140) on which a wire guide insert (136) is mounted in a radially adjustable manner, which has an eccentric wire guide bore (137) and which interacts with a cutting tool (14).
- the wire guide (130) ending at the insert (136) always rotates around the wire axis in synchronism with the pairs of feed rollers.
- a special feature in the case of DE 197 36 468 A1 is a remotely rotatable wire gripper (64) which is arranged on the rotatable wire guide (70) for the rotationally fixed clamping of the wire, which wire cannot rotate about its axis like jamming feed rollers.
- the device according to the invention is characterized by the characterizing features of claims 1 to 4; it is preferably a device according to claim 5. The invention also relates to the method according to claim 6.
- the object of the invention is the geometric shape accuracy of the, from DE 42 29 294 C1 known device for forming wire three-dimensional wire structures to improve substantially, and this consistently, and to increase the output of the device, d. H. an increase in quality of finished workpieces, and an increase in performance to achieve in a device for molding three-dimensional workpieces.
- this is firstly achieved in that the rotatable on the bearing body Wire feed device of the device for forming wire according to DE 42 29 294 C1 rigid arranged output wire guide device by a known rotatable wire guide device is replaced, and secondly in that the rotating wire guide device with a program-controlled and force-controlled wire "brake” device according to the invention is provided, the servo drive for the shaping process, together with the servo drives of the other device units is controlled by the machine control.
- the wire brake device which is program-controlled and force-controlled for each individual working section on a workpiece to be manufactured.
- the braking force acting on the wire can be set in a program-controlled manner in such a way that a damping effect occurs during the shaping process, for example when a workpiece part that has already been produced is turned over in the wire forming area.
- a holding or stabilizing effect can be achieved during machining operations on the stationary wire, so that the wire, if necessary, cannot twist in the angular position of a section that has already been produced.
- the braking force acting on the incoming wire can be predefined by the computer in such a way that, for example during winding, the play between the incoming wire and the wire guide is reduced in such a targeted manner that an exact spring shape and spring pitch is achieved during the winding process, but the wire is still can be fed.
- 1 and 2 is a rotatable wire feed device (10), a rotatable wire guide device (12) with a wire brake device (114), a wire forming station (14) and a cutting device (16) for cutting the workpiece from the endless wire (18) of a CNC-controlled device to see wire forming.
- the known CNC-controlled rotatable described in DE 42 29 294 C1 Wire feed device (12) has a feed housing (22) in which a total of four wire feed rollers (24) are rotatably mounted, which advance the wire (18) into the wire forming station (14).
- the Rollers (24) are arranged in pairs and are operated by a first CNC-controllable servo motor (26) via two toothed belt transmissions, of which only one (28) is shown here, program-controlled Speed-controlled intermittent, optionally driven forwards and backwards.
- the feed housing (22) of the wire feed device (10) is itself in one on the device for forming wire-fastened bearing body (30) rotatably mounted.
- the feeder housing (22) is program-controlled by a second controllable servo motor (34) via a toothed belt gear (36), intermittently driven either forwards or backwards.
- the wire inlet side of the rotatably mounted feed housing (22) a conventional wire straightening device (38) with horizontally and vertically arranged straightening rollers for straightening of the wire (18) attached to the extended feed housing. before this through the feed housing (22) is inserted between the feed rollers (24).
- the wire guide device On the right side in FIG. 1 of the bearing body (30) is part of the wire guide device a two-part, consisting of an upper part (42) and a lower part (44) and on the feed housing (22) held wire guide (48) rotatably mounted in the bearing body (30).
- the wire guide (48) extends to the left up to the outlet of the right pair of wire feed rollers and back right up to an eccentric wire holder (52).
- the wire holder (52) is part of the rotatable wire guide device (12). This also consists of one, outside of the front plate (58) of the machine frame in the plate (58) roller bearings around the Wire axis rotatable boom (60) on a rotatable flange (62) in the plate (58) with a Toothed pulley (64) of a toothed belt drive (66) is screwed.
- the toothed disc (64) is about a toothed belt (68) of the toothed belt drive (66) from a third CNC-controllable servo motor (70) Program-controlled, intermittent, optionally driven forwards and backwards.
- the wire holder (52) is releasably attached, which is axially in front of the front exit of the wire guide (48) which is rotatable with the wire feed device (10).
- a pull rod (116) is slidably guided in the arm (60) of the rotatable wire guide device (12) to actuate the wire brake device (114).
- One end of the pull rod (116) is connected to a two-armed lever (120) by a bolt (118).
- the lever (120) is pivotally mounted in the arm (60) on a bolt (122).
- the free lever arm (124) of the lever (120) presses on the rounded end of a pressure bolt (128), which is preloaded via a compression spring (126) in the (two-part) wire holder (52) and has a prismatic recess at its other end .
- This prismatic end of the bolt (128) interacts with the wire (18) passing by, friction forces resulting in braking forces.
- the end of the pull rod (116) opposite the lever (120) is connected to a switching ring (130) firmly connected.
- the switching ring (130) is mounted axially displaceably in a sliding bush (132), however held radially in the sleeve (132) not rotatable.
- the switching ring (130) rotates to the same extent.
- the switching ring (130) is with a Provided circumferential groove (134) on its outer circumference, in the two switching claws (136) of a two-armed Engage the shift lever (138).
- the shift lever (138) can be pivoted approximately centrally in a bearing (140) on a bolt (142) stored.
- the bearing (140) is firmly connected to the front plate (58).
- the arm of the shift lever (138) opposite the shifting claws (136) has an internal thread bearing lever eye (144) into which a threaded spindle (146) is screwed.
- the threaded spindle (146) can be controlled via a coupling (148) with the stub shaft (150) of a CNC Servo motor (152) non-rotatably connected.
- the rotatable wire guide device can be used (12) the holder (52) can be brought into the most favorable position, e.g. for beating around of a partially manufactured workpiece, or that the wire holder (52) is turned so that when cutting a finished workpiece from the endless wire, the cutting knife (100) the cutting device (16) the wire (18) against the larger wall thickness of the holder (52), which also serves as a counter knife, cuts off.
- the wire forming station (14) is on the front panel (58), which is also the shaping side of the device for forming wire is arranged. It consists of several radially around the wire guide hole (74) of the wire holder (52) attached processing units. 2 are three of these Units shown, namely a winch / bending unit (78), a CNC slewing gear (80) and one CNC pusher unit belonging to the cutting device (16).
- the winch / bending unit (78) is in DE 42 29 294.C1 and DE 39 15 784 C1 described in more detail.
- a fourth CNC-controllable servo motor (84) is selected, the degree of shaft rotation, the direction of rotation and the standstill are freely selectable.
- a possibly simultaneous one Can perform longitudinal movement is provided in order to the shaft (80), in addition to its rotary movement, also a possibly simultaneous one Can perform longitudinal movement.
- the size of the longitudinal movement of the shaft (82) is also by the CNC control freely selectable.
- the slide unit belonging to the cutting device (16) is controlled by another CNC Servo motor (96) via a crank mechanism (not shown) and one that is also not shown Conrod driven.
- the cutting knife (100) is at the free end of the in a slide guide the cutting device (16) in a longitudinally displaceably slidable cutting slide (102) in a receptacle (104) held interchangeably.
- the straight wire and clamped between the feed rollers (24) is endless wire (18) upon activation of the first servo motor (26) through the wire guide (48) and the holder (52) by means of the CNC-controlled feed rollers (24) intermittently horizontally in a straight line advanced into the wire-forming station (14) and in accordance with those arranged on the tool holder (86), effective tools are deformed.
- the CNC controlled withdrawal of the wire is also possible by reversing the direction of motor rotation.
- the positioning of the individual tools before the shaping process and the active one Tool movement for shaping the workpiece is carried out by the CNC control of the servo motors of the winch and bending unit (78) and are from the exemplary DE 39 15 784 C1 known.
- the endless wire (18) fed by means of the feed rollers (24) is fed by the second servo motor (34) via the toothed belt gear (36) and the feed housing (22) CNC-controlled in the predetermined Angle and at the right time, if necessary, simultaneously with the feeding of the wire (18) by the feed rollers (24), for each individual shaping section of the wire in the most favorable spatial processing position before carrying out the next processing step turned.
- the CNC control of the third controllable servo motor (70) for the molding process most favorable location rotated.
- the program-controlled and force-controlled Wire brake device (114) by activating the CNC-controllable servo motor (152) to be brought.
- the size of those transferred to the wire (18) via the pressure pin (128) The braking force is dependent on the respective shaping process from the CNC machine control given.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
Eine Besonderheit ist im Falle der DE 197 36 468 A1 ein ferngesteuert drehbarer Drahtgreifer (64), der zum drehfesten Einklemmen des Drahtes an der drehbaren Drahtführung (70) angeordnet ist, die den Draht nicht wie klemmende Einzugswalzen um seine Achse zu drehen vermag.
Dem Stand der Technik gegenüber zeichnet sich die erfindungsgemäße Vorrichtung durch die kennzeichnenden Merkmale der Ansprüche 1 bis 4 aus; sie ist bevorzugt eine Vorrichtung gemäß Anspruch 5.
Gegenstand der Erfindung ist auch das Verfahren gemäß Anspruch 6.
- Fig. 1
- die Ausführungsform in teilweise abgebrochener Darstellung in Seitenansicht
- Fig. 2
- eine Vorderansicht auf einen Teil der Ausführungsform
- Fig. 3
- eine teilweise geschnittene Vergrößerung der Einzelheit A in Fig. 1
Für die Betätigung der Drahtbremseinrichtung (114) ist im Ausleger (60) der drehbaren Drahtführungseinrichtung (12) eine Zugstange (116) gleitend geführt. Das eine Ende der Zugstange (116) ist über einen Bolzen (118) mit einem zweiarmigen Hebel (120) verbunden. Der Hebel (120) ist im Ausleger (60) auf einem Bolzen (122) schwenkbar gelagert. Der freie Hebelarm (124) des Hebels (120) drückt auf das abgerundete Ende eines über eine Druckfeder (126) im (zweiteilig ausgeführten) Drahthalter (52) vorgespannt, gleitend geführten Druckbolzens (128), der an seinem anderen Ende eine prismatische Ausnehmung aufweist. Dieses prismatische Ende des Bolzens (128) wirkt mit dem vorbeilaufenden Draht (18) zusammen, wobei Reibungskräfte Bremskräfte ergeben.
Claims (6)
- Vorrichtung zum Formen von Drahtzu Drahterzeugnissen, mit einer geraden Drahtführung (48), einer an deren Einmündung angeordneten Drahteinzugseinrichtung (10), deren den geradlinig eingezogenen Draht (18) drehfest einklemmende Teile (24) gemeinsam mit der Drahtführung (48) um die Drahtachse drehbar sind; und mit einem an der Ausmündung der Drahtführung (48) angeordneten, den aus dieser tretenden Draht (18) weiterführenden Drahthalter (52) an einem Ausleger (60), welcher (52) an seiner Ausmündung mit einem quer zur Drahtachse bewegbaren Schneidwerkzeug (100) zusammenwirkt;wobei der Drahtvorschub zu und gegebenenfalls ein Drahtrückzug von dieser Drahthalterausmündung durch die Drahteinzugseinrichtung (10) sowie deren teilweise Drehung um die Drahtachse aufeinander abgestimmt programmsteuerbar sind, dadurch gekennzeichnet, daß bei einer solchen Vorrichtung mit auf einer Kreisbahn um die Drahtachse herumführbarem Ausleger (60) mit Drahthalter (52) deren Einheit mit einer fernsteuerbaren Drahtbremseinrichtung (114) versehen sind, welche radial auf den vorbeigeschobenen Draht (18) wirkt und dazu programmsteuerbar ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Drahtbremseinrichtung (114) ein gefedertes Bremselement (128) an einem Hebel (120) aufweist, der mittels einer angelenkten, parallel zur Drahtachse im Ausleger (60) geführten Druck- und Zugstange (116) um eine die Drahtachse senkrecht kreuzende Achse (118) drehbar ist.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß bei einer solchen Vorrichtung mit einem um die Drahtachse drehbar am Maschinengestell (58) gelagerten Flansch (62) am Ausleger (60), dessen (62) Antrieb (66) programmsteuerbar ist, eine Trommel (130) koaxial im Flansch (62) und auf der Drahtführung (48) axial verschieb- und drehbar gelagert ist, an welcher (130) das elementferne Ende der Stange (116) als axialer Mitnehmer befestigt ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Trommel (130) eine die Drahtführungsachse umfahrende Umfangsnut (134) aufweist, in die ein freies Ende eines am Maschinengestell (58) gelagerten Schalthebels (138) formschlüssig eingreift, welcher mittels eines programmsteuerbaren Antriebs (152) drehbar ist, der die Bremskraft erzeugt.
- Vorrichtung nach einem der Ansprüche 1 bis 4, mit einer an der Ausmündung des Drahthalters (52) drehbar angeordneten Welle (82), deren Längs- und Drehachse der geraden Drahtbahn außerhalb des Drahthalters (52) nahesteht, und mit einem am freien Ende der Welle (82) angeordneten Werkzeughalter (86), der mindestens ein Werkzeug (88 oder 90) zum Winden und/oder Biegen des zugeführten Drahtes (18) trägt, wobei die Dreh- und Verschiebebewegungen der Welle (82) zum Bewegen des Werkzeugs (88 oder 90) in die Drahtbahn oder relativ zu dieser programmsteuerbar sind.
- Verfahren zum Formen von Draht zu Drahterzeugnissen, bei welchem der beim Einzug begradigte, zu formende Draht in seiner Längsrichtung programmgesteuert zur Formstation vorgeschoben oder von dieser zurückgezogen sowie programmgesteuert um seine gerade Längsachse hin oder her gedreht wird, dadurch gekennzeichnet, daß die Längsbewegung und/oder die Drehung des zu formenden Drahtes in der Nähe der Formstation programmgesteuert gebremst werden/wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19816403 | 1998-04-11 | ||
DE19816403A DE19816403C2 (de) | 1998-04-11 | 1998-04-11 | Vorrichtung zum Formen von Draht mit einer Drahtbremseinrichtung und Verfahren zum Formen von Draht |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0949021A2 EP0949021A2 (de) | 1999-10-13 |
EP0949021A3 EP0949021A3 (de) | 2001-01-17 |
EP0949021B1 true EP0949021B1 (de) | 2001-12-19 |
Family
ID=7864426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99105833A Expired - Lifetime EP0949021B1 (de) | 1998-04-11 | 1999-03-23 | Vorrichtung zum Formen von Draht, mit einer Drahtbremseinrichtung |
Country Status (3)
Country | Link |
---|---|
US (2) | US6092565A (de) |
EP (1) | EP0949021B1 (de) |
DE (2) | DE19816403C2 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6604395B2 (en) * | 2001-07-23 | 2003-08-12 | St Assembly Test Services Ltd. | Semi-automated probe bender |
JP3744910B2 (ja) * | 2003-02-10 | 2006-02-15 | オリイメック株式会社 | 線ばね成形装置 |
DE502004004631D1 (de) * | 2003-12-22 | 2007-09-27 | Komax Holding Ag | Kabelbearbeitungseinrichtung |
US7951319B2 (en) | 2006-07-28 | 2011-05-31 | 3M Innovative Properties Company | Methods for changing the shape of a surface of a shape memory polymer article |
GR1005986B (el) * | 2006-10-03 | 2008-07-10 | Μεθοδος και συστημα παραγωγης τρισδιαστατων προϊοντων απο συρμα. | |
CN102328004B (zh) * | 2011-10-12 | 2013-04-24 | 西安建筑科技大学 | 一种小直径丝材弯折机 |
CN103785774B (zh) * | 2014-03-05 | 2015-01-28 | 方大力 | 用螺杆式夹紧装置和弯曲力传感器的炉丝弯曲工艺 |
US20150318674A1 (en) * | 2014-05-01 | 2015-11-05 | David Peavy | Wire Puller |
CN205967232U (zh) * | 2015-12-24 | 2017-02-22 | 博罗县石湾联科精密五金有限公司 | 用于弹簧成型机的伺服旋转式全功能刀具组件 |
US11007563B2 (en) | 2016-04-27 | 2021-05-18 | Advanced Orthodontic Solutions | Wire bending machine |
TWM541340U (zh) * | 2016-09-29 | 2017-05-11 | Boluo Shiwan Union Precision Hardware Co Ltd | 用於彈簧成型機之伺服旋轉式全功能刀具模組 |
AT520359B1 (de) * | 2017-07-11 | 2019-09-15 | Sw Automatisierung Gmbh | Drahthandlingvorrichtung |
DE102019212090B4 (de) * | 2019-08-13 | 2024-02-01 | Wafios Aktiengesellschaft | Umformmaschine mit Einzugseinrichtung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2030793C2 (de) * | 1970-06-23 | 1972-06-15 | SpuhlAG, St Gallen (Schweiz) | Vorrichtung zur Befestigung eines Kantendrahtes an den Randfedern eines Federkorpers |
US4187889A (en) * | 1978-08-14 | 1980-02-12 | The Boeing Company | Wire pinch mark detector for use in method and apparatus for semiautomatically manufacturing electrical wire harness |
GB2095134B (en) * | 1981-03-25 | 1984-11-07 | Lansing Bagnall Ltd | Wire-laying tool |
AT391037B (de) * | 1982-09-30 | 1990-08-10 | Sticht Fertigungstech Stiwa | Spulenwickeleinrichtung |
JPS61229433A (ja) * | 1985-04-03 | 1986-10-13 | Asahi Seiki Kogyo Kk | 両端に独乙式フツクを備える引張りばねの連続自動成形方法及び装置 |
DE3915784C1 (de) * | 1989-05-13 | 1990-07-05 | Wafios Maschinenfabrik Gmbh & Co Kg, 7410 Reutlingen, De | |
US5184651A (en) * | 1990-10-24 | 1993-02-09 | Matsushita Electric Industrial Co., Ltd. | Wire winding apparatus |
DE4229294C1 (de) * | 1992-09-02 | 1993-12-16 | Wafios Maschinen Wagner | Vorrichtung zum Formen von Draht |
DE19549397C2 (de) * | 1994-09-20 | 1997-12-11 | Statomat Spezialmaschinen | Vorrichtung zum Wickeln von Spulen für elektrische Maschinen |
JP2812433B2 (ja) * | 1996-08-23 | 1998-10-22 | 株式会社板屋製作所 | スプリング製造装置 |
-
1998
- 1998-04-11 DE DE19816403A patent/DE19816403C2/de not_active Expired - Fee Related
- 1998-05-26 US US09/085,082 patent/US6092565A/en not_active Expired - Fee Related
-
1999
- 1999-03-23 EP EP99105833A patent/EP0949021B1/de not_active Expired - Lifetime
- 1999-03-23 DE DE59900566T patent/DE59900566D1/de not_active Expired - Fee Related
-
2000
- 2000-05-24 US US09/577,630 patent/US6397900B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0949021A2 (de) | 1999-10-13 |
US6397900B1 (en) | 2002-06-04 |
DE19816403A1 (de) | 1999-10-21 |
EP0949021A3 (de) | 2001-01-17 |
US6092565A (en) | 2000-07-25 |
DE59900566D1 (de) | 2002-01-31 |
DE19816403C2 (de) | 2001-06-13 |
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