EP2011583B1 - Machine de formage de fil - Google Patents

Machine de formage de fil Download PDF

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Publication number
EP2011583B1
EP2011583B1 EP07017890A EP07017890A EP2011583B1 EP 2011583 B1 EP2011583 B1 EP 2011583B1 EP 07017890 A EP07017890 A EP 07017890A EP 07017890 A EP07017890 A EP 07017890A EP 2011583 B1 EP2011583 B1 EP 2011583B1
Authority
EP
European Patent Office
Prior art keywords
plate
tool
wire
forming machine
tool plate
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.)
Not-in-force
Application number
EP07017890A
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German (de)
English (en)
Other versions
EP2011583A1 (fr
Inventor
Norbert Speck
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.)
Wafios AG
Original Assignee
Wafios AG
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 Wafios AG filed Critical Wafios AG
Priority to TW097122505A priority Critical patent/TWI337903B/zh
Priority to JP2008170692A priority patent/JP4890508B2/ja
Priority to US12/167,793 priority patent/US8166786B2/en
Priority to RU2008127250/02A priority patent/RU2402399C2/ru
Priority to CN200810135615XA priority patent/CN101347813B/zh
Publication of EP2011583A1 publication Critical patent/EP2011583A1/fr
Application granted granted Critical
Publication of EP2011583B1 publication Critical patent/EP2011583B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B21F3/00—Coiling wire into particular forms
    • B21F3/02—Coiling wire into particular forms helically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F35/00—Making springs from wire

Definitions

  • the invention relates to a wire forming machine according to the preamble of claim 1, in particular a spring-bending or spring-winch machine, comprising a machine frame, a wire retraction, a wire guide for conveying the supplied wire into a working area of the machine in which the wire machined and / or reshaped by a tool or several tools, for which purpose each tool can be transferred from a wire remote starting position via a feed movement in a working position on the wire and all tools on a provided on the machine frame tool plate around a recess mounted in this around ,
  • the wire is supplied to the working area of the machine, are arranged, wherein further each tool on the tool plate in the direction of its feed movement relative to the tool plate is immovable and its feed movement to its working position only by a corresponding movement of the Malawipl atte and the tool plate is seated on a second plate provided with a recess corresponding to the recess of the tool plate, the tool plate being movable along a first direction on the second plate and along
  • a wire-forming machine in the form of a leg spring machine in which a plurality of tools are mounted on a plate.
  • Each tool has a base plate and is provided with its own, only assigned to him drive, by its operation, it can be moved radially toward the wire or away from it.
  • the base plates can be coupled with a ring that can be pivoted about the wire axis and on the fine adjustment of the tools to the wire in the manufacturing process can be achieved (swing axis).
  • each tool is provided with its own drive, which makes the machine consuming and expensive.
  • the wire forming machine from the DE 199 38 905 B4 again represents a leg spring machine having two mounted next to the wire guide tool turret. These sit on a 3D cross table and can thus be positioned anywhere in the room.
  • the turret can additionally be rotated about an axis parallel to the wire axis, whereby different tools at different positions can be brought into engagement with the wire.
  • the tool change is very slow and it limits the performance of the machine clearly.
  • this known machine requires more space than conventional leg spring machines.
  • the module consists of a base plate with a drive, a linear guide and a crank.
  • the forming units can be easily mounted on a machine wall and dismantled again.
  • the disadvantage is that each tool unit in turn is assigned its own drive, which in turn makes the machine expensive, especially with a larger number of tools.
  • the thigh spring machine from the EP 1 637 251 A works with a feeder unit mounted on either a 2D or a 3D cross table.
  • the wire can be transported to the radially mounted tools, which, however, very large masses must be moved. The performance and rigidity of the known machine are therefore reduced.
  • Another leg spring machine with a two-dimensionally movable feeder is from the DE 697 15 953 T known to optimally position the wire to the tool.
  • the tool head is arranged above the feeder and can be moved horizontally and vertically.
  • a rotation axis for the tool is also provided.
  • only one tool can be attached to the tool head. For cutting a separate tool unit is needed.
  • the arrangement of the tool head is fixed (namely vertically from above).
  • a leg spring machine of the type mentioned is from the JP-P2007-30038A known.
  • the tool table is linear along a first direction on the second plate and this movable linearly along a second direction relative to the machine frame, wherein the first direction is horizontal and the second direction is vertical to the machine longitudinal axis.
  • the known machine comes in operation in very strong vibrations and a significant wobbling of the whole machine occurs, which leads to highly undesirable vibrations in each already created wire bending parts, which adversely affects the whole winding or wind process ,
  • the present invention seeks to provide a wire forming machine of the type mentioned so that in a further simple structure, a particularly low-vibration operation of the machine can be achieved and thus a high operating performance can be achieved.
  • the wire forming machine according to the invention leads quite surprisingly to an extremely low-vibration operation, which makes it possible to achieve very high production speeds with very good precision, without disturbing and the ejection impairing machine vibrations occur. This is probably due to the fact that in the inventive alignment of the axes of movement of both movable plates, the lateral Verfahramplituden each of the two plates are usually smaller than in a vertical / horizontal orientation of the two axes.
  • the moving mass of the tool plate is relatively small, as always only the necessary tools must be mounted. Due to the possibility of arbitrary arrangement of the tools whose attachment can be made so that the travel paths of the tool plate are reduced to a minimum.
  • the longitudinal axes of all tools mounted on the tool plate are very particularly preferably arranged at an acute angle, very particularly preferably at an angle of 30 ° or 45 ° to the vertical vertical axis of the machine, resulting in a particularly favorable force support to the ground which applies in particular to a job of 45 °.
  • the tool plate and the second plate are each moved to two mutually parallel linear guide powers, if the respective movements are to be made linear.
  • the tool plate and the second plate are mounted in the form of a 2D cross table.
  • the drive for moving the tool plate is mounted, whereby he then always taken in the direction of movement of the second plate relative to the machine frame and via its drive connection to the tool plate, the superposition of the movement of the second plate which can be done in a simple way the tool plate.
  • tool plate and the second plate represent parts of a 3D cross table and thus together are still movable in a direction parallel to the wire direction, whereby a three-dimensional feed movement of all tools is possible.
  • the tool plate with the tools attached to it is still designed to pivot about an axis perpendicular to the wire conveying direction, whereby it can be achieved that the tools in the working position no longer perpendicular to the wire attacks, which is desirable in some cases ,
  • the respectively relevant tool holder can be provided with a corresponding adjustment device, which can be achieved in the individual case as optimal as possible alignment for wire guide.
  • tools are provided on the tool plate with an additional rotary drive, such as a turning tool with a rotary mandrel, so that with this in the working position then rotational movements can be performed.
  • the recess of the tool plate is in each relative position of the tool plate and the second plate to each other fully within the surface area defined by the recess of the second plate.
  • a peripheral to the edge of the cover plate is attached, through which the gap between the tool plate and machine frame is covered, whereby no parts, fingers oa. between the plates.
  • this shroud will be in four places, e.g. at four corners of the recess, bolted to the tool plate.
  • the two movable plates are arranged relative to each other and to the front plate of the machine frame so that the gaps between the tool plate and the second plate and between the latter and the end wall of the machine frame each have a gap width in the range of 0.8 to 1.3 mm, preferably at 1 mm, lies.
  • the recess in the second plate is preferably made substantially rectangular, but more preferably square, which is favorable for symmetry and weight reasons.
  • the wire forming machine according to the invention leads due to their relatively simple structure at relatively low cost and compared to many known machines to a significant cost. This is achieved by the simplification of the machine and the possible reduction in the number of drive axles, without having to accept higher power losses.
  • Fig. 1 shows in a perspective oblique view from the front (top left) a wire forming machine in the form of a leg spring machine 1, a wire retraction (hidden in the figure), a straightening unit (not shown) and a wire guide 2 has.
  • Both the wire intake, as well as the straightening unit and the wire guide 2 are rotatable about the longitudinal axis of the conveyed wire 3.
  • the straightening unit consists of straightening rollers, which are mounted in different planes and by an appropriate delivery eliminate the residual stress in the wire 3 and thus bends in this or generate a straight as possible directed wire.
  • the wire retraction consists of several pairs of driven rollers, which convey the wire 3 clamped between them as a result of their rotation through the wire guide 2 into the working area of the machine.
  • the leg spring machine 1 generally has a machine frame 4, which in Fig. 1 only shown in principle and which is provided on its front side with a machine front wall 5 (end wall).
  • a 2D cross table 6 which comprises on its front side a tool plate 7, which is mounted on a second plate 8 as a base plate, slidably on this.
  • two parallel, first linear guides 9 are mounted, along which the tool plate 7 on the base plate 8 in a direction x is movable, which is inclined at an angle of 45 ° to the vertical vertical axis HH of the leg spring machine 1 (in Fig. 1 : diagonally from bottom right to top left).
  • a spindle drive 10 is provided and mounted on a boom 11 of the base plate 8, so that it is taken with it on each movement of the base plate 8 fixed thereto.
  • two parallel, second linear guides 12 are mounted, on which the base plate 8 relative to the machine front wall 5 (and thus the machine frame 4) can be moved, in a direction y, which is perpendicular to the travel direction x of the tool plate 7 and also at 45 ° to the vertical Vertical axis HH of the leg spring machine runs (in Fig. 1 : from bottom left to top right).
  • a spindle drive 13 is likewise provided, which can be mounted on the machine front wall 5.
  • Both the tool plate 7, as well as the second plate or base plate 8 are each provided in their center with a recess 14 which extends around the wire guide 2, as in Fig. 1 is shown.
  • the recesses 14 are in the two plates 7 and 8 of square shape with obliquely cut corners and lie in the initial rest position of the 2D cross table 6 on top of each other and form a common opening area through which the conveyed wire 3 via the wire guide 2 in the Working area of the machine 1 can be promoted unhindered.
  • Fig. 1 (or the other figures) is directly removed, are distributed around the recess 14 in the tool plate 7, several different tools attached, such a bending tool 15 with a rotatable bending head 16, further a wind finger 17, to which a plurality of winch grooves may be attached and finally a cutting tool 18.
  • a bending tool 15 with a rotatable bending head 16 further a wind finger 17, to which a plurality of winch grooves may be attached
  • a cutting tool 18 arranged there.
  • Each of the tools is mounted on the tool plate 7 so that it is fixed immovably in the direction of a feed movement to the wire guide 2 out.
  • Each tool may, if desired, be additionally provided with a drive, wherein Fig. 1 only one such further drive 19 for rotating the bending head 16 of the bending tool 15 is indicated.
  • a grid 20 with a plurality of holes is arranged on the tool plate 7 to allow easy mounting of tools to be attached thereto.
  • the hole pattern 20 runs around the entire circumference of the recess 14, so that tools can be arbitrarily positioned in this grid.
  • the tool holders 21 can also be used e.g. be provided with an adjusting device 23, via which the position of the tool in question can be adjusted in the longitudinal direction of the wire 3 in order to achieve the best possible alignment with the wire guide 2.
  • the wire guide 2 In order to position the wire guide 2 optimally to the tools 15, 17 and 18 used, it can be rotated about the longitudinal axis of the wire 3.
  • Fig. 2 shows the state in which by the method of the tool plate 7 (the movement of which results overall by the superposition of their relative movement to the base plate 8 and their relative movement to the machine front wall 5) of the bending head 16 of the bending tool 15 moved up to the outlet of the wire guide 2 and with the wire 3 is engaged. Then either the further drive 19 for the bending head 16 of the bending tool 5 (for a bending operation) or the wire retraction (for a winch) is actuated.
  • the cutting tool 18 is moved up to the wire 3 and moved so that it shears the wire 3 on the wire guide 2.
  • Fig. 2 the bending tool has moved up to the wire 3 and causes a corresponding bending deformation of the continuously conveyed wire 3.
  • Fig. 3 shows a position in which the wind finger 17 is placed in working position and the requested wire 3 is wound.
  • Fig. 4 Finally, a position is shown in which the cutting tool 18 has just moved up to the wire guide 2, wherein the movement of the cutting tool 18 continues to run until the wire 3 is finally sheared off on the wire guide 2.
  • the leg spring machine 1 instead of using a rotatable feeder, also has the possibility of rotatably forming the entire tool unit.
  • a 30-axis stage could be used, which allows an additional movement of the tool plate 7 and thus the tools mounted on it in the wire conveying direction.
  • the former can also be supported by a (not shown in the figures) support arm directly on the base frame 4 and on the end plate 5 to the 2D-stage from the introduction and Absorption of considerable cutting forces to relieve.
  • the support arm in turn must be movable relative to the machine frame to effect its delivery to the execution of the cut on the wire 3.
  • the support arm could be immobile and the cutting tool 18 provided with its own Zustellantrieb sitting on the arm.
  • the control of the manufacturing process is then ultimately due to the set program via a central process control device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)

Claims (14)

  1. Machine de formage de fil (1), en particulier machine à plier les ressorts ou machine à rouler les ressorts, comportant un bâti (4), une entrée de fil et un guidage de fil (2) pour transporter le fil (3) introduit vers une zone de travail de la machine (1), dans laquelle zone le fil est façonné et/ou formé par un outil ou plusieurs outils (15, 17, 18), chaque outil (15, 17, 18) pouvant être amené, à cet effet, par rapport au fil (3), hors d'une position initiale éloignée du fil (3) vers une position de travail moyennant un mouvement d'approche, et les outils (15, 17, 18) étant disposés sur une plaque à outils (7), prévue sur le bâti (4), autour d'un évidement (14) réalisé dans ladite plaque à outils, à travers lequel le fil (3) est acheminé vers la zone de travail de la machine (1), chaque outil (15, 17, 18) étant fixé, en outre, à la plaque à outils (7) de manière immobile par rapport à la plaque à outils (7) dans la direction de son mouvement d'approche, ledit mouvement d'approche vers la position de travail étant assuré uniquement par un mouvement correspondant de la plaque à outils (7), et ladite plaque à outils (7) est logée sur une deuxième plaque (8) munie d'un évidement (14) correspondant à l'évidement (14) de la plaque à outils (7), ladite plaque à outils (7) pouvant être déplacée suivant une première direction (x) sur la deuxième plaque (8) et cette dernière pouvant être déplacée suivant une deuxième direction (y), perpendiculaire à la première direction (x), sur le bâti (4), caractérisée en ce que les deux directions (x, y) sont disposées respectivement en formant une inclinaison de 45° par rapport à l'axe vertical (H-H) de la machine de formage de fil (1).
  2. Machine de formage de fil selon la revendication 1, caractérisée en ce que les axes longitudinaux de tous les outils (16, 17, 18) disposés sur la plaque à outils (7) sont également disposés en formant une inclinaison de 45° par rapport à l'axe vertical (H-H) de la machine (1).
  3. Machine de formage de fil selon la revendication 1 ou 2, caractérisée en ce que la plaque à outils (7) et la deuxième plaque (8) sont logées de manière mobile sur deux lattes de guidage linéaire (9, 12) parallèles entre elles.
  4. Machine de formage de fil selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la plaque à outils (7) et la deuxième plaque (8) forment une table en croix 2D (6).
  5. Machine de formage de fil selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le système d'entraînement (10), destiné à déplacer la plaque à outils (7), est également monté sur la deuxième plaque (8).
  6. Machine de formage de fil selon l'une quelconque des revendications 1 à 5, caractérisée en ce que des outils (15, 17), montés sur la plaque à outils (7), sont déplaçables perpendiculairement à celle-ci.
  7. Machine de formage de fil selon l'une quelconque des revendications 1 à 6, caractérisée en ce que des outils (15) sur la plaque à outils (7) sont munis d'un système d'entraînement en rotation (19) supplémentaire.
  8. Machine de formage de fil selon l'une quelconque des revendications 1 à 7, caractérisée en ce que la plaque à outils (7) et la deuxième plaque (8) sont des parties d'une table en croix 3D et sont encore mobiles conjointement dans une direction parallèle à la direction du fil.
  9. Machine de formage de fil selon l'une quelconque des revendications 1 à 8, caractérisée en ce que la plaque à outils (7), avec les outils (15, 17, 18) montés sur celle-ci, est encore apte à pivoter autour d'un axe perpendiculaire à la direction de transport du fil.
  10. Machine de formage de fil selon l'une quelconque des revendications 1 à 9 caractérisée en ce que, dans chaque position relative de la plaque à outils (7) et de la deuxième plaque (8), l'évidement (14) de la plaque à outils (7) se situe entièrement à l'intérieur de la surface définie par l'évidement (14) de la deuxième plaque (8).
  11. Machine de formage de fil selon l'une quelconque des revendications 1 à 10, caractérisée en ce que dans l'évidement (14) de la plaque à outils (7) est agencée une tôle de protection qui recouvre, autour du bord de l'évidement (14), l'espace entre la plaque à outils (7) et le bâti (4).
  12. Machine de formage de fil selon l'une quelconque des revendications 1 à 11, caractérisée en ce que la largeur de la fente entre la plaque à outils (7) et la deuxième plaque (8), ainsi qu'entre cette dernière et le bâti (4), se situe dans chaque cas uniquement dans une plage de 0,8 à 1,3 mm.
  13. Machine de formage de fil selon l'une quelconque des revendications 1 à 12, caractérisée en ce que l'évidement (14) dans la deuxième plaque (8) est sensiblement carré.
  14. Machine de formage de fil selon l'une quelconque des revendications 1 à 13, caractérisée en ce qu'un outil (18) est réalisé sous forme de lame de coupe et est monté sur le bâti (4) par l'intermédiaire d'un bras de support.
EP07017890A 2007-07-06 2007-09-12 Machine de formage de fil Not-in-force EP2011583B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
TW097122505A TWI337903B (en) 2007-07-06 2008-06-17 Wire-forming machine
JP2008170692A JP4890508B2 (ja) 2007-07-06 2008-06-30 線材成形機
US12/167,793 US8166786B2 (en) 2007-07-06 2008-07-03 Wire-forming machine
RU2008127250/02A RU2402399C2 (ru) 2007-07-06 2008-07-07 Станок для пластической деформации проволоки
CN200810135615XA CN101347813B (zh) 2007-07-06 2008-07-07 线材成形机器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007031514A DE102007031514A1 (de) 2007-07-06 2007-07-06 Drahtverformungsmaschine

Publications (2)

Publication Number Publication Date
EP2011583A1 EP2011583A1 (fr) 2009-01-07
EP2011583B1 true EP2011583B1 (fr) 2013-03-27

Family

ID=39735487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07017890A Not-in-force EP2011583B1 (fr) 2007-07-06 2007-09-12 Machine de formage de fil

Country Status (7)

Country Link
US (1) US8166786B2 (fr)
EP (1) EP2011583B1 (fr)
JP (1) JP4890508B2 (fr)
CN (1) CN101347813B (fr)
DE (1) DE102007031514A1 (fr)
RU (1) RU2402399C2 (fr)
TW (1) TWI337903B (fr)

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US9700932B2 (en) * 2015-05-14 2017-07-11 Plusprings Machinery Co.,Ltd Wire-forming mechanism for spring making machine
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TWM524775U (zh) * 2016-01-20 2016-07-01 Huang Xiao Ling 用於彈簧成型機之全方位機械手
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EP3330018B1 (fr) * 2016-12-01 2020-09-23 Wing Hong Mechanical Co., Ltd Dispositif de formation de fil
JP6704867B2 (ja) * 2017-02-27 2020-06-03 日本発條株式会社 コイルばね製造装置と、コイルばねの製造方法
JP6239800B1 (ja) * 2017-06-28 2017-11-29 旭精機工業株式会社 線材成形機
TWI666075B (zh) * 2018-05-22 2019-07-21 順耀機械有限公司 具有選擇性加工具配置之彈簧製造機的使用方法
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CN112045118B (zh) * 2019-11-26 2022-05-10 苏州市新艺弹簧厂 一种夹子弹簧成型装置
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Publication number Publication date
CN101347813B (zh) 2010-12-08
TW200906515A (en) 2009-02-16
CN101347813A (zh) 2009-01-21
JP4890508B2 (ja) 2012-03-07
DE102007031514A1 (de) 2009-01-08
US20090007619A1 (en) 2009-01-08
US8166786B2 (en) 2012-05-01
RU2402399C2 (ru) 2010-10-27
JP2009012074A (ja) 2009-01-22
RU2008127250A (ru) 2010-01-20
EP2011583A1 (fr) 2009-01-07
TWI337903B (en) 2011-03-01

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