WO2004101193A1 - Federwindemaschine und verfahren zum steuern einer federwindemaschine - Google Patents
Federwindemaschine und verfahren zum steuern einer federwindemaschine Download PDFInfo
- Publication number
- WO2004101193A1 WO2004101193A1 PCT/CH2004/000284 CH2004000284W WO2004101193A1 WO 2004101193 A1 WO2004101193 A1 WO 2004101193A1 CH 2004000284 W CH2004000284 W CH 2004000284W WO 2004101193 A1 WO2004101193 A1 WO 2004101193A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spring
- winding machine
- wire
- spring winding
- control
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- 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
Definitions
- the invention relates to a spring winding machine and a method for controlling a spring winding machine in accordance with the preamble of claims 1 and 7.
- spring wire is generally used by means of a conveyor from a reel withdrawn and fed to a molding device.
- the forming device can comprise one or more winding tools which deflect the spring wire during advancement and thereby form a spring.
- the winding tools can be fixedly and immovably connected to the machine or In the latter case, the tools can be moved, for example, by a rotatable cam disc or by a servo motor and / or a piezotranslator.
- the properties of the springs produced can deviate more or less strongly from the desired target properties.
- material properties such as wire diameter, warping or twisting, composition of the mixed structure, internal stresses or micro-crack fields can affect tensile strength, the modulus of elasticity or other properties that influence the deformability of the wire.
- electrical properties such as conductivity or impedance or permeability
- the material inhomogeneities can lead to the fact that the properties of the springs produced are not constant.
- shape parameters such as, for example, winding diameter, pitch, etc. and / or mechanical properties such as, for example, the spring constants can have considerable bandwidths. The manufacture of geometrically precise springs with properties within narrow tolerance limits is often difficult.
- An adaptive spring winding device is known from DE-Al-19534189, in which means are provided for improving the constancy of the spring properties. Downstream there are one after the forming tool Means for monitoring the wire and for generating output signals are provided, which are characteristic of the physical characteristics of the bent wire. The output signals are fed to the control and used by the control for fine positioning of the forming tool or its position, in such a way that the outer diameter or the inner diameter of the springs is maintained.
- Figure 3 shows a control function for a converter
- FIG. 1 shows schematically a schematic diagram with parts of a spring winding machine 1, which are important for the invention.
- the spring coiling machine 1 comprises an electronic machine control, called controller 3 for short, a wire feed device 5 with two wire feed rollers 5a, 5b, a wire forming system 7 with a feed part 9 comprising two support rollers 9a, 9b or a feed part (not shown) and at least one converter 11.
- Die Controller 3 may include one or more components.
- the controller 3 can comprise a conventional machine controller and a PC or industrial computer connected to it.
- the means 11, 11a, 11b for deforming the wire 13 into a spring 15 can be adjusted, controlled or regulated by the controller 3 before and / or after and / or during the manufacture of a spring 15, depending on the configuration of the spring winding machine 1.
- the processing cycle or the control intervals for updating the position or location of the transducers 11 are preferably short and are, for example, in the range from a few milliseconds to approximately 100 ms.
- the controller 3 comprises means for acquiring input or measurement variables, for example a user interface 17 with a screen display 19 and a keyboard 21 and / or a device interface 23 for connecting measurement devices 25 and / or programming or data reading devices, such as those used for input of setpoints or default functions for controlling the converter 11 are required.
- the first measuring device 25a preferably comprises an eddy current measuring device, such as is offered by the company IBG Prufcoputer GmbH in Germany under the brand name eddyliner® and the type designation P or Px. Devices of this type are generally used in the area of material testing and quality assurance.
- the device comprises an evaluation unit 29 and as a measuring sensor 27 a coil connected to it.
- a further coil with a piece of reference wire 13a can be connected to the evaluation unit 29 as a reference sensor 31.
- the real and imaginary parts of the determined impedance values assume characteristic values for certain measuring frequencies f x and for the wires labeled WA, WB, WC and WD 13. These values correspond to a fingerprint of the respective wire 13, which can be determined by different properties such as chemical composition, structure of the structure, internal mechanical stresses, surface treatment, electrical conductivity, permeability, temperature, outside diameter, shape of the cross-sectional area, etc.
- the wire 13 When the wire 13 is formed into a spring 15, such wire properties, with the transducer 11 being set unchanged, can lead to the fact that the actual properties deviate from the desired target properties of the spring 15.
- the inside or outside diameter of a helical spring can be too small or too large and / or the pitch of the spring 15 can deviate from the desired spring pitch.
- the spring 15 in shape and form Corresponds to the default values, but has a spring constant that deviates from the nominal value.
- the control curve can, for example, by parameters of a polynomial function or by Fourier coefficients or alternatively, it can be stored as a look-up table, the corresponding deflection values being stored for, for example, one hundred support points distributed uniformly over the entire wire length.
- control values can also be adapted in such a way that non-geometric spring properties such as the spring constant or, in the case of progressive springs, a corresponding function with different wire properties are retained, in which case the Shape of the springs 15, for example their spring pitch can vary.
- deviations from spring properties can also be detected automatically with a second measuring device 25b with suitable test sensors 33.
- the outer diameter of an end ring and / or the inner diameter of the narrowest turn and / or the spring pitch can be captured with a camera-based image processing system (not shown).
- the controller 3 can automatically adjust or correct the control function Ki or the control values at the individual support points on the basis of the measured variables of the second measuring device 25b as soon as these measured variables lie outside a tolerance range specified by the controller 3.
- the control function Ki can be adapted by means of processing instructions which are predetermined in the controller 3.
- the algorithm can delay between the
- control 3 starts automatically or alternatively, on the instruction of an operator
- the controller 3 stores the values determined by the first measuring device 25a as data records, provided that the
- Control function Ki for the corresponding spring type.
- This control function Ki is a lookup table with e.g. a hundred evenly across the to produce the
- Spring 15 required wire length distributed support points also stored in the memory of the controller 3. The values stored at the support points correspond to the
- controller 3 can automatically or upon manual request form further reference data sets, e.g. if one of the following criteria is met:
- One or more measurement variables of the first measuring device 25a differ significantly from the values contained in the previously stored reference data records
- the second and each further reference data record reflects a constellation of values of the first measuring device 25a, in which a correction of the control function Ki or another control function K 2 / K 3 etc. is necessary in order to be able to produce springs 15 with the desired properties.
- a first or further reference data set which can include, for example, the real and imaginary parts of the impedance of the wire 13 at one or more frequencies
- the controller 3 changes from the training mode to an operating mode in which no further determination of reference data sets takes place.
- the controller 3 now starts a comparison algorithm which relates the wire properties detected by the measurement sensors 27 and stored as reference data sets and the corrections made to the original control function Ki, for example by means of multiple regression or neural networks, and searches for correlations between these sizes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04731869A EP1622732B1 (de) | 2003-05-13 | 2004-05-10 | Federwindemaschine und verfahren zum steuern einer federwindemaschine |
US10/556,372 US7458243B2 (en) | 2003-05-13 | 2004-05-10 | Spring winding machine and a method for controlling a spring winding machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH8272003 | 2003-05-13 | ||
CH827/03 | 2003-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004101193A1 true WO2004101193A1 (de) | 2004-11-25 |
Family
ID=33438094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2004/000284 WO2004101193A1 (de) | 2003-05-13 | 2004-05-10 | Federwindemaschine und verfahren zum steuern einer federwindemaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US7458243B2 (de) |
EP (1) | EP1622732B1 (de) |
CN (1) | CN100372625C (de) |
WO (1) | WO2004101193A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008119090A1 (de) * | 2007-03-30 | 2008-10-09 | Trumpf Maschinen Austria Gmbh & Co. Kg. | Verfahren zur festlegung eines einstellparameterwerts einer biegepresse |
WO2022017785A1 (de) * | 2020-07-20 | 2022-01-27 | Wafios Aktiengesellschaft | Verfahren und federwindemaschine zur herstellung von schraubenfedern |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4921487B2 (ja) * | 2005-11-29 | 2012-04-25 | ポスコ | エアガイド型ワイヤガイダー |
CN100404160C (zh) * | 2006-07-21 | 2008-07-23 | 黄金堂 | 全功能压簧机 |
ITRM20080078A1 (it) * | 2008-02-12 | 2009-08-13 | Cml Intarnational S P A | Metodo di verifica e comando per curvare in modo continuo un pezzo allungato secondo raggi di curcatura variabili e macchina cosi' comandata |
DE102010014385B4 (de) * | 2010-04-06 | 2011-12-08 | Wafios Ag | Verfahren und Vorrichtung zur Herstellung von Schraubenfedern durch Federwinden, sowie Federwindemaschine |
JP5756609B2 (ja) * | 2010-07-30 | 2015-07-29 | 日本発條株式会社 | コイルばね製造装置 |
CN103143645B (zh) * | 2013-03-20 | 2014-12-10 | 沈阳飞机工业(集团)有限公司 | 云型扭转弹簧的制造工装 |
JP5777184B2 (ja) * | 2014-02-14 | 2015-09-09 | 旭精機工業株式会社 | フォーミングマシン |
KR101419698B1 (ko) * | 2014-03-25 | 2014-07-21 | 대원강업 주식회사 | 열간 코일스프링 제조장치 |
JP6420690B2 (ja) * | 2015-02-26 | 2018-11-07 | 日本発條株式会社 | コイリングマシンと、コイルばねの製造方法 |
CN109475922B (zh) * | 2016-02-03 | 2020-04-28 | 施普尔公司 | 螺旋弹簧卷绕设备及卷绕螺旋弹簧的方法 |
FR3050266B1 (fr) * | 2016-04-15 | 2021-02-12 | Somfy Sas | Procede de controle de conformite d'un ressort, procede de fabrication d'un tel ressort et ressort ainsi controle |
TWI654039B (zh) | 2018-04-27 | 2019-03-21 | 展望系統股份有限公司 | 智能彈簧製造系統 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05115936A (ja) * | 1991-10-25 | 1993-05-14 | Chuo Spring Co Ltd | コイルばね製造用線材のコイリング方法 |
DE4443503A1 (de) * | 1994-12-07 | 1996-06-13 | Uwe Dr Ing Otzen | Verfahren und Vorrichtung zur Drahtzuführung |
US5761943A (en) * | 1996-02-07 | 1998-06-09 | Allevard Federn Gmbh | Method of and arrangement for making helical springs from biconical wire |
US5865051A (en) * | 1994-12-07 | 1999-02-02 | Wafios Maschinenfabrik Gmbh & Co. Kommanditgesellschaft | Procedure and apparatus for the optimized manufacture of coil springs on automatic spring winding machines |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2137344A (en) * | 1983-03-16 | 1984-10-03 | Standard Telephones Cables Ltd | Flaw protection in wire drawing |
DE3804913A1 (de) * | 1987-02-20 | 1988-09-01 | Itaya Seisakusho | Vorrichtung und verfahren zur herstellung von federn |
CN2039238U (zh) * | 1988-06-02 | 1989-06-14 | 陕西省宝鸡市标准件弹簧厂 | 弹簧垫圈成型机 |
JP3172221B2 (ja) * | 1991-11-18 | 2001-06-04 | 株式会社東京コイリングマシン製作所 | コイルばねの製造方法 |
US5477715A (en) * | 1992-04-08 | 1995-12-26 | Reell Precision Manufacturing Corporation | Adaptive spring winding device and method |
US5470319A (en) * | 1994-06-20 | 1995-11-28 | Critical Device Corporation | Needleless injection site |
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 |
US5875664A (en) * | 1997-12-23 | 1999-03-02 | L&P Property Management Company | Programmable servo-motor quality controlled continuous multiple coil spring forming method and apparatus |
CN2360188Y (zh) * | 1998-09-27 | 2000-01-26 | 金苗兴 | 一种卷簧机 |
-
2004
- 2004-05-10 EP EP04731869A patent/EP1622732B1/de not_active Expired - Lifetime
- 2004-05-10 WO PCT/CH2004/000284 patent/WO2004101193A1/de active Application Filing
- 2004-05-10 CN CNB2004800127098A patent/CN100372625C/zh not_active Expired - Fee Related
- 2004-05-10 US US10/556,372 patent/US7458243B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05115936A (ja) * | 1991-10-25 | 1993-05-14 | Chuo Spring Co Ltd | コイルばね製造用線材のコイリング方法 |
DE4443503A1 (de) * | 1994-12-07 | 1996-06-13 | Uwe Dr Ing Otzen | Verfahren und Vorrichtung zur Drahtzuführung |
US5865051A (en) * | 1994-12-07 | 1999-02-02 | Wafios Maschinenfabrik Gmbh & Co. Kommanditgesellschaft | Procedure and apparatus for the optimized manufacture of coil springs on automatic spring winding machines |
US5761943A (en) * | 1996-02-07 | 1998-06-09 | Allevard Federn Gmbh | Method of and arrangement for making helical springs from biconical wire |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 0174, no. 79 (M - 1471) 31 August 1993 (1993-08-31) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008119090A1 (de) * | 2007-03-30 | 2008-10-09 | Trumpf Maschinen Austria Gmbh & Co. Kg. | Verfahren zur festlegung eines einstellparameterwerts einer biegepresse |
WO2022017785A1 (de) * | 2020-07-20 | 2022-01-27 | Wafios Aktiengesellschaft | Verfahren und federwindemaschine zur herstellung von schraubenfedern |
Also Published As
Publication number | Publication date |
---|---|
EP1622732A1 (de) | 2006-02-08 |
CN1787889A (zh) | 2006-06-14 |
US7458243B2 (en) | 2008-12-02 |
US20060230803A1 (en) | 2006-10-19 |
EP1622732B1 (de) | 2012-11-07 |
CN100372625C (zh) | 2008-03-05 |
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