EP2520384B1 - Outil de treuil pour machines à enroulement de ressort - Google Patents

Outil de treuil pour machines à enroulement de ressort Download PDF

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Publication number
EP2520384B1
EP2520384B1 EP12002452.6A EP12002452A EP2520384B1 EP 2520384 B1 EP2520384 B1 EP 2520384B1 EP 12002452 A EP12002452 A EP 12002452A EP 2520384 B1 EP2520384 B1 EP 2520384B1
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EP
European Patent Office
Prior art keywords
insert
coiling
retainer
tool holder
tool
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.)
Active
Application number
EP12002452.6A
Other languages
German (de)
English (en)
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EP2520384A1 (fr
Inventor
Alexander JANNOTTI
Alf Schürmann
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
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Wafios AG
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Publication of EP2520384A1 publication Critical patent/EP2520384A1/fr
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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
    • 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 wind tool for spring coiling machines, comprising a tool holder having at one end a recessed recess in the form of extending over this end portion groove which is bounded on their sides by a side cheek, forms a receptacle for a winch insert , towards the end of the tool holder has an open side and into which the winch insert used and in its releasably attachable to the tool holder, wherein the winch insert is blocked when inserted into the recording state of this form-fitting against a relative movement relative to the recording.
  • the invention is based on a Windewerkmaschine-arrangement, as used for spring winding machines or compression spring machines.
  • the wire is fed from a feeder against one or two wind fingers or wind pins and deflected by them on a circular path and formed in helical form.
  • Such wind tools can either be carried out in one piece by the tool holder and the wind insert is made in one piece, or even so that in the tool holder a winch insert is soldered.
  • a Windewerkmaschine of the type mentioned is from the US Pat. No. 7,082,797 B1 known. With him, the winch insert is positively locked in a receptacle against a relative movement relative to the recording.
  • the receptacle is bounded on each of its sides by a side cheek, wherein the side cheeks in the course of their longitudinal extent on the tool holder in each case form an indentation bulging laterally to the outside of the tool holder. This causes the shank of the tool holder to thicken laterally in the region of these bulges.
  • the invention aims to improve a wind tool of the type mentioned in that it retains the exact same position even with a change in a very simple structure, small footprint and quick replacement of the winch insert while a new setting of the machine can be omitted ,
  • this is achieved in a wind tool of the type mentioned above in that at an otherwise rectilinear design of the receptacle at least on a side wall of the receptacle in the groove directed bulge is formed in the inserted wind insert with a correspondingly complementarily shaped concavity in Intervention is.
  • the receptacle and the winch insert are designed such that they form a positive engagement with each other when the winch insert is inserted into the receptacle, which prevents the occurrence of a relative movement between the two parts and thus in the longitudinal direction at the wind loading at the front of the winch insert the receiving groove effective loads on this mutual positive engagement of the shapes of recording and use of wind of the latter are transmitted to the tool holder problem-free, without causing the otherwise otherwise still existing releasable attachment of the winch insert on the tool holder to accommodate such loads.
  • a wind tool can be realized in which in addition to a very small footprint and the great advantage that can be used with a winch insert, in which at both axial end portions each have a working area (in the form of a Winderille) can be provided , whereby each winch can be used twice, without a rework is required.
  • the winch use z. B. worn at one end only the fixing screw is released, the winch insert taken out of the receptacle, rotated by 180 °, so that its previous rear end is to its front end, then inserted back into the receptacle and fastened with the screw.
  • This is an extremely fast change of the tool, and without loss of its exact positioning, possible, thereby saving considerable time and cost when changing, as this is very quickly going on and the machine is not reset every time.
  • the tool holder can be made very slim with the result that in the case of a z. B. two-finger wind system two such trained wind tools can be moved very tight laterally, so that thereby springs of a particularly large diameter range can be produced.
  • Windewerkzeugs also given the opportunity to attach to the front and back each have a Winderille can, the unused rear groove can be attached protected because they do not have to be present on the tool holder somehow and z.
  • the Nuterstreckung the recording readily to a certain extent on the rear end of the inserted insert addition can be extended, whereby the then lying there second groove with inserted winch insert has a certain distance from the end of the groove.
  • the receptacle is formed symmetrically to its longitudinal center plane, wherein advantageously the shape of the winch insert is formed symmetrically to a median plane through the longitudinal axis and to a median plane through the longitudinal axis and the transverse axis thereof.
  • the winch insert is preferably fastened to the tool holder by means of a screw whose central axis coincides with the line of intersection of the longitudinal and the transverse center plane of the winch insert, resulting in the problem-free rotation of the winch insert for moving its rear windrow forward (and the z. B. worn, broken o. ⁇ . Front groove to the rear) while maintaining the exact axial position of the winch use guaranteed.
  • the Windewerkzeug invention enables a simple, compact and inexpensive construction and a quick tool change, without causing the axial position of the Windewerkmaschinees must be readjusted.
  • the structure of the tool according to the invention in a particular embodiment of the same wind insert can be used twice, by at its front and its rear end in each case a Winderille is attached.
  • the wind tool according to the invention is installed in use in the machine and set its axial position once. The position and position of the tool holder must then not be changed. In the event of wear, breakage or the like of the winch insert, only the releasable fastening, preferably a screw, is opened, the winch insert is rotated or replaced and then the fastening screw is tightened again.
  • the releasable attachment such as the fastening screw, fixes the tool holder only in the direction perpendicular to the longitudinal direction of the tool holder, while the lateral absorption of the forces takes place by the positive engagement windage recording.
  • Fig. 1 represents in an oblique perspective view quite basically the structure of a spring coiling machine 1, in which at the front of a machine frame 2, first (left) a wire feed 3 is provided, the z. B. three pairs of wire feed rollers 9 is formed, which promote an endless wire 4 a wire guide 5 and advance through this into a wind station 6.
  • the wire feed rollers 9 of the wire entry 3 are of a in Fig. 1 not shown, programmable servomotor driven.
  • the wind station 6 has two superposed wind units 7a, 7b. Also, the wind station 6 is still a pitch device (in Fig. 1 not shown).
  • a cutting unit 8 which comprises a movable cutting tool 11 which cooperates with a cutting mandrel 12 during the cutting operation.
  • Each winch unit 7a and 7b is equipped with a winching tool 10, which is respectively fixed to a lever 13a and 13b, wherein the levers 13a and 13b respectively by means of rollers 14a and 14b by a control cam 15a and 15b are moved.
  • Each of the cams 15a, 15b is driven by its own programmable servomotor. But it is also possible, the two cams 15a and 15b of only a CNC-controllable servo motor (not shown) programmatically drive. The drive of the cam 15a and 15b is intermittently both forward and backward rotating.
  • FIGS. 2 and 3 show the same wind tool 10 in an exploded view.
  • the Windewerkmaschine 10 comprises an elongated tool holder 20, which at its one, in the assembled state of the conveyed wire 4 end region facing a recess recessed on one side 21, which, as especially Fig. 3 shows well, designed as a form of groove receptacle 22 for a winch insert 23 is formed.
  • the recess 21 and in particular the receptacle 22 are open towards the front end of the tool holder 20, wherein in the case of a wind insert used in the receptacle 22 23 this protrudes through the open side of the receptacle 22 via the end of the tool holder 20 to the front.
  • the winch insert 23 is provided at its projecting end with a working area in the form of a winding groove 24.
  • the conveyed wire 4 runs when using this Windewerkmaschinees 10 against the Winderille 24 and is deflected by this on a circular path and formed into a helical shape.
  • front and rear respectively designate an indication in the direction of the open end of the receptacle 22 toward or away from it.
  • the winch insert 23 is not only on its front side, which protrudes in the installed state of the winch insert 23 at the front of the tool holder 20, but also at its opposite end also provided with a winding groove 24 in the mounted state, such as Fig. 2 shows, initially within the receptacle 22 is located, and by a distance a from the rear end wall 25 of the receptacle 22 away. By this distance a it is ensured that this inner end of the winch insert 23 with its Winderille 24 is not applied to the end wall 25 and thus 23 in the inserted state of the Windeennees no damage to the Winderille 24 can occur there.
  • the recording 22 becomes, as the representation of the Fig. 3 clearly shows, bounded laterally by side cheeks 26 and 27 and at its rear end by the end wall 25.
  • the side cheeks 26, 27 form in the longitudinal direction of the receptacle 22 lateral groove boundary walls 28, 29 ( Fig. 3 ), which in their rear portions, ie in their outgoing from the end wall 25 areas, initially parallel to each other, as the FIGS. 2 and 3 show in detail.
  • the groove width which in the region of the parallel course of the inner walls 28, 29 of the side cheeks 26, 27 has the size B (see. Fig. 2 ), narrowed to a value b , as is the representation of the Fig. 3 shows.
  • the receptacle 22 (and not only this, but also the recess 21 and the entire tool holder 20) is formed symmetrically to a longitudinal center plane LL of the tool holder 20.
  • the winch insert 23 is designed to be symmetrical both to the longitudinal center plane extending through its longitudinal center line MM and to its transverse center plane passing through its transverse center line QQ .
  • the shape of the winch insert 23 is further selected so that in the inserted state in the receptacle 22, where the protrusions 30, 31 on the side walls 26, 27 of the receptacle 22 are present, correspondingly complementary side indentations 32, 33 are provided on the winch insert 23, in which the bulges 30 and 31 of the side cheeks 26 and 27 engage positively with inserted winch insert 23.
  • the winch insert 23 is how Fig. 3 shows, both in the direction of the groove width, as well as in the longitudinal direction of the receptacle 22 where the bulges 30 and 31 of the side cheeks 26th and 27 are provided, relative to these centrally with a through hole 34 which there passes through the winch insert 23 over its entire height and whose central axis coincides with the intersection between the longitudinal center plane and the transverse center plane of the winch insert 23.
  • Fig. 3 shows, attached to the groove bottom, a corresponding threaded bore 35 into which inserted in the receptacle 22 Winde insert 23 can be screwed through the through hole 34 inserted mounting screw 36 for attaching the winch insert 23 on the tool holder 20.
  • the axial length of the receptacle 22 is selected so that when inserted into the receptacle 22 and fixed wind insert 23 a small distance a between the rear end and the end wall 25 of the receptacle 22 remains.
  • wind insert 23 and receptacle 22 allow the already mentioned dual use of the winch insert 23 by this can be provided both at its front and at its rear end with a respective Winderille 24 (as a working area), so that when loosening the screw 36th and removal of the winch insert 23 from the receptacle 22 of the winch insert 23 only has to be rotated to spend its rear side forward (and vice versa), after which it can be immediately re-inserted into the receptacle 22 and fixed there. In this way, an extremely rapid change of the working range of the windage insert 23 with only the shortest downtime of the machine for this change is possible.
  • the shapes of the lateral bulges 30 and 31 on the side cheeks 26 and 27 of the receptacle 22 and the shape of the corresponding complementary indentations 32 and 33 on the winch insert 23 may well be formed in other than the shape shown in the figures, for. B. not in the form of a rounded, but a square cross-section.
  • the mounting screw 36 is used with mounted winch insert 23 alone and exclusively to attach it to the tool holder 20 by pressing the winch insert 23 in the axial direction of the through hole 34 against the groove bottom of the receptacle 22.
  • FIGS. 2 and 3 clearly show how slim such a wind tool 10 can be executed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)
  • Winding Of Webs (AREA)

Claims (7)

  1. Outil d'enroulement (10) pour une machine d'enroulement de ressort (1) avec un support d'outil (20) et un insert d'enroulement (23), le support d'outil (20) comprenant, au niveau d'une zone d'extrémité, une cavité (21) encastrée d'un côté sous la forme d'une rainure (22) s'étendant sur cette zone d'extrémité, qui est limitée, au niveau de chacun de ses côtés, par une joue latérale (26, 27), formant un logement (22) pour l'insert d'enroulement (23), comprenant, vers l'extrémité du support d'outil (20), un côté ouvert et dans laquelle l'insert d'enroulement (23) peut être inséré et fixé dans celle-ci de manière amovible sur le support d'outil (20), l'insert d'enroulement (23) étant formé comme un insert allongé, sa largeur (b, B) correspondant à la largeur de la rainure (22) entre les joues latérales (26, 27) et, dans un état inséré dans le logement (22), est bloqué par celui-ci par complémentarité de forme contre un mouvement relatif par rapport au logement (22), caractérisé en ce que, dans le cas d'une conception linéaire du logement (22), au moins sur une joue latérale (26, 27) du logement (22), un bombement convexe (30, 31), orienté vers la rainure (22) est réalisée, qui, lorsque l'insert d'enroulement (23) est inséré, s'emboîte avec un bombement concave (32, 33) de forme complémentaire à celui-ci.
  2. Outil d'enroulement selon la revendication 1, caractérisé en ce que, au niveau de deux joues latérales (26, 27), sont réalisées, symétriquement entre elles, un bombement (30, 31) orienté vers le centre du logement (22) et des bombements concaves (32, 33) de formes complémentaires sont réalisées sur les deux côtés de l'insert d'enroulement (23).
  3. Outil d'enroulement selon la revendication 2, caractérisé en ce que le logement (22) est réalisé de manière symétrique par rapport à son plan longitudinal central (L-L).
  4. Outil d'enroulement selon l'une des revendications 2 à 3, caractérisé en ce que la forme de l'insert d'enroulement (23) est réalisée de manière symétrique par rapport à un plan central à travers l'axe longitudinal (M-M) et par rapport à un plan central à travers l'axe transversal (Q-Q).
  5. Outil d'enroulement selon la revendication 4, caractérisé en ce que, dans l'état de l'insert d'enroulement (23) inséré dans le logement (22), l'extrémité de celui-ci opposée au côté ouvert du logement (22) se trouve à une distance (a) de la paroi de terminaison arrière (25) du logement (22).
  6. Outil d'enroulement selon la revendication 4, caractérisé en ce que l'insert d'enroulement (23) est fixé au support d'outil (20) au moyeu d'une vis (36), dont l'axe central coïncide avec la ligne d'intersection du plan central avec l'axe longitudinal (M-M) et l'axe transversal (Q-Q) de l'insert d'enroulement (23).
  7. Outil d'enroulement selon l'une des revendications 1 à 5, caractérisé en ce que l'insert d'enroulement (23) est fixé au support d'outil (20) au moyen d'un raccord rapide amovible.
EP12002452.6A 2011-05-04 2012-04-04 Outil de treuil pour machines à enroulement de ressort Active EP2520384B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011100434.7A DE102011100434B4 (de) 2011-05-04 2011-05-04 Windewerkzeug für Federwindemaschinen

Publications (2)

Publication Number Publication Date
EP2520384A1 EP2520384A1 (fr) 2012-11-07
EP2520384B1 true EP2520384B1 (fr) 2017-06-07

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EP12002452.6A Active EP2520384B1 (fr) 2011-05-04 2012-04-04 Outil de treuil pour machines à enroulement de ressort

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EP (1) EP2520384B1 (fr)
DE (1) DE102011100434B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019115772B4 (de) 2019-06-11 2023-09-28 Wth Laqua Gmbh Windewerkzeug für eine Federwindemaschine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015075261A1 (fr) 2013-11-25 2015-05-28 Epcos Ag Composant inductif ainsi que dispositif et procédé pour enrouler un fil pour un composant inductif
CN104493015A (zh) * 2014-12-26 2015-04-08 福建永动力弹簧科技有限公司 卷簧机上的分体式弹簧卷绕和裁切模具
DE102016105935B4 (de) * 2016-03-31 2018-04-26 Wafios Aktiengesellschaft Windewerkzeug für eine Federwindemaschine
EP3698897B2 (fr) * 2019-02-21 2023-12-27 WTH Laqua GmbH Outil d'enroulement pour une machine à enroulement de ressort
DE202019103268U1 (de) 2019-06-11 2019-07-03 Wth Laqua Gmbh Windewerkzeug für eine Federwindemaschine
JP6901645B1 (ja) * 2021-03-30 2021-07-14 旭精機工業株式会社 ばね成形機

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3701088A1 (de) 1987-01-16 1988-07-28 Baisch Gerhard Dipl Ing Fh Windeeinrichtung fuer federwindemaschinen mit auswechselbaren, voreinstellbaren elementen
US5201208A (en) * 1991-11-04 1993-04-13 Newcomb Spring Corporation Coiling point holder for spring coiling machine
JP2939472B1 (ja) * 1998-08-21 1999-08-25 株式会社板屋製作所 スプリング製造装置
JP4393813B2 (ja) 2003-07-22 2010-01-06 新興機械工業株式会社 ばね製造機の線材切断装置
US7082797B1 (en) * 2003-12-19 2006-08-01 Wiese Thomas R Coiling point tool for spring coiling machine, and method of using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019115772B4 (de) 2019-06-11 2023-09-28 Wth Laqua Gmbh Windewerkzeug für eine Federwindemaschine

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DE102011100434B4 (de) 2014-11-20
EP2520384A1 (fr) 2012-11-07
DE102011100434A1 (de) 2012-11-08

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