EP1577033A1 - Méthode de fabrication d'une boucle au brin d'extrémité d'un ressort à boudin et dispositif correspondant - Google Patents
Méthode de fabrication d'une boucle au brin d'extrémité d'un ressort à boudin et dispositif correspondant Download PDFInfo
- Publication number
- EP1577033A1 EP1577033A1 EP04006591A EP04006591A EP1577033A1 EP 1577033 A1 EP1577033 A1 EP 1577033A1 EP 04006591 A EP04006591 A EP 04006591A EP 04006591 A EP04006591 A EP 04006591A EP 1577033 A1 EP1577033 A1 EP 1577033A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- eyelet
- gripping
- wire
- wire section
- spring body
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 claims description 25
- 238000007493 shaping process Methods 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000005452 bending Methods 0.000 description 10
- 241001422033 Thestylus Species 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- B21F35/02—Bending or deforming ends of coil springs to special shape
Definitions
- the invention relates to a method for producing an eyelet at the end of a a wire strand shaped spring body on a spring manufacturing machine, wherein the shaping of the spring body - seen in the direction of its production - behind this the further supplied wire strand of two gripping jaws gripping tongs detected and between this held and hereafter at a predetermined distance behind the tongs below Forming a behind the spring body protruding rear wire section separated becomes.
- the invention further relates to an apparatus for producing spring bodies, the at least on her - seen in the spring manufacturing direction - rear end with a Eyelet are to be provided, with feed rollers for the current delivery of a wire strand, a Device for feeding the wire strand to the shaping area of the device, at least one forming tool for producing the spring body, a gripping tongs with two jaws for gripping and holding a after generation of a spring body behind this projecting, rear wire section and with cutting devices for Disconnecting the spring body with the rear wire section of the wire strand from the Wire feeding.
- the production of a first (front) eyelet on the uncut wire directly in the Spring manufacturing machine, such as a spring coiling machine is when using a slewing gear no problem and can be realized in a simple way. This does not apply to the production of the second eyelet, namely at the end of the spring body, for their training hitherto different methods have been used.
- the problem solution is also relatively simple.
- the spring body is provided by a spring manufacturing machine Grab gripper seized and held and then by means of a cutting device from the wire separated.
- the protruding wire section will hereafter, similar to the production of the first eyelet, formed by the use of a slewing gear to a second (rear) eyelet.
- the spring body which consists of a number of formed turns and the first eyelet, so far taken to form a rear German eyelet of a separate gripper tongs and then in another processing station, a so-called " ⁇ steller" promoted, in which by setting up the last turn now a second (German) eyelet can be generated.
- ⁇ steller a so-called " ⁇ steller" promoted, in which by setting up the last turn now a second (German) eyelet can be generated.
- the present invention seeks to provide a method of the initially mentioned type, with the production of the second (rear) eyelet of different ⁇ senart, including a German eyelet, are realized with standard tools can, while increasing the process safety and overall the manufacturing process as well as the Device in addition also still cheaper to carry out or produced.
- This object is according to the invention in a method of the type mentioned solved in that the one gripping jaws of the gripper in the form of one of the specified shape the eyelet corresponding mold baking is used to that of the above rear Wire section by means of a directly behind the other gripping jaws perpendicular to the longitudinal direction the rear wire section on the latter mobile shaping pin for forming the eyelet is bent around the mold jaws, with the required relative movement between shaping pin and form jaws by program-controlled movements of Tongs and / or forming pin are generated.
- a grasping forceps is used, in which one of two gripping jaws is designed as a form of baking, which is also used as a bending mandrel for the Form bending the eyelet serves.
- the method according to the invention makes it possible to do so without any problems Both stems, as well as normal German eyelets or other eyelets with a set of Standard tools manufacture.
- At the machine is no own further Processing station more in the form of a ⁇ stellers required, likewise can the previously required for transport to the wringer additional gripping tongs completely eliminated.
- the inventive method allows a very precise production of the thus produced rear eyelets, even with German eyelets, whereby the process reliability of Manufacturing process is increased in such tension springs. Moreover, with the inventive method, the production of the eyelets in such a short time possible, such this is not the case with conventional methods due to the intermediate steps required there can be realized. Thus, the invention proves overall Production process also as a particularly inexpensive.
- the inventive method thus offers over the previously known methods for the shaping of such rear eyelets, especially German eyelets, a significant Simplification and improvement.
- Particularly advantageous method of the invention can be carried out in the form that the movements of the gripping tongs during the formation of the eyelet only along one Direction of movement, most preferably perpendicular to the longitudinal direction of the rear Wire section, done.
- the movement of the molding pin achieved in the manufacture of the eyelet in that this in a to the longitudinal direction of the Wire section vertical movement direction and additionally moved along a circular path becomes.
- a particularly advantageous embodiment of the spring manufacturing method according to the invention Is achieved in that the spring body with the already formed front eyelet and the rear wire section before forming the rear eyelet by means of the gripper from the Spring wind room of the spring manufacturing machine is moved out. This can be done during Forming the rear eyelet of the machine already the next spring body with front Eyelet, thereby significantly increasing the efficiency of the work of the machine.
- the eyelet around the shaping jaw is particularly preferred bent over to the side of the wire section towards which the spring body is formed.
- the above-mentioned object is characterized with respect to the device mentioned above solved that one of the jaws of the gripper tongs in the form of one of the shape of the eyelet Form baking formed and also one on the side of the other gripping jaws, directly behind this and above the wire section perpendicular to the longitudinal axis, retractable Forming pin is provided, by means of which the rear wire section to the forming jaws of Tongs around the eyelet is bendable, wherein the gripper and / or the Forming pin sits / sits on movable carrying devices and a program control provided with the movement (s) of the wire device (s) for performing the for the Forming an eyelet required relative movement (s) between shaping pin and Form baking is controllable / are.
- the device according to the invention is for carrying out the method according to the invention suitable and has a much simplified compared to previously known devices Build on, because neither a ⁇ steller, nor a second gripper tongs are needed, which is why they also cheaper than previously known devices manufactured for the same purpose can be.
- the measures used according to the invention in particular the Forming the one gripping jaw of the gripping tongs as shaping jaws (in the sense of a Bending mandrel), feasible without great effort.
- the device according to the invention is designed so that the Movement devices for the gripping tongs a vertically movable holding table, on the this sits, as well as means for moving the gripper perpendicular to the longitudinal direction the protruding wire strand (or, which is equally true, the supplied Wire strands).
- This is also a particularly uncomplicated training of achieved device according to the invention.
- the inventive device of the two gripping jaws of Gripping tongs formed as a molding jaws which when gripping the wire section on the Side is the same, to which the spring body is formed at this.
- the Movement devices for the stylus also a vertically movable holding table and means for moving the forming pin perpendicular to the longitudinal direction of the supplied wire strand, wherein here, particularly preferably, the shaping pin also still sitting on a mounted on the holding table slewing, by means of which he additionally in a circular movement is movable.
- This can all be used to execute the for the Training the rear eyelet necessary relative movements between mold jaws and Shaping the stylus with simple, easily controllable means.
- a spring 1 can be seen, which consists of one on a (not shown) Spring coiling machine already formed spring body 2 consists, which at its front End is provided with a likewise already formed front eyelet 3. At his back (in the figures on the left) end, which is facing the wire guide, protrudes from the Spring body 2, a rear wire section 4 before, already in a previous step was cut from the supplied wire strand.
- the spring 1 at the rear Wire section 4 detected by a gripper 5, the two (in the figures in principle Section shown) gripping jaws 6 and 7, which the rear wire section 4 clamp in the manner shown.
- the gripping jaws located in the figures above 6 run slightly wider than the other jaws 7 and lies with his the spring. 1 facing side on the top of the spring body 2 and top of the rear protruding Wire section 4, whereby a total of a predetermined orientation of the spring 1 in the Achieve tongs 5.
- the other jaw is in the form of one of the desired eyelet shape
- Forming jaw 7 is formed, which serves as a bending mandrel for the formation of the rear eyelet 10 (see FIG. 5) is used. It is arranged on the side of the rear wire section 4, to which the Spring body 2 has been formed, d. H. on the side, starting from the rear wire section 4, too towards the spring coils of the spring body 2 are formed (in Figs. 1 to 5: after below), so that the forming jaw 7 in turn can also support the spring body 2 laterally, as shown in FIGS. 1 to 5 show.
- This bending mandrel has a cross-section of suitable shape, by means of which it is an orientation of the last turn of the spring body 2 (and so that the latter overall) to the rear wire section 4 even during bending of the rear eyelet 10 ensures and at the same time the bending shape for the desired shape of the Eyelet 10 pretends.
- This is in the illustrations of Figs. 1 to 5 with a shape of Formbacken 7 reached, on their backwards (ie in the figures: to the left) directed surface 7A is formed according to the desired eyelet shape and on their side facing the spring body 2 an alignment surface 7B in the form of a plane Has contact surface.
- FIGS. 2 to 5 are directly behind the gripping pliers 5, above the rear protruding Wire section 4 and immediately behind the upper gripping jaw 6 and perpendicular to Longitudinal axis L of the wire section 4, a shaping pin 9 from a position behind the Drawing plane of Fig. 1 to 5 in the position shown in Fig. 1 (in the drawing plane) retracted, in which it lies above the wire section 4.
- the shaping pin 9 sits in turn on a rotary tool 8, by means of which he in a circular path (of course in both directions the same) is movable and in turn perpendicular to the longitudinal center axis L of the rear Wire section 4 can be moved, as shown in FIGS. 2 to 5 by the arrow a is shown.
- the spring body 2 is against the Contact surface 7 B of the mold jaw 7 on its side facing him, wherein the Mold jaws 7 serves as a counter-stop during the bending of the eyelet 10 at the same time.
- FIG. 6 finally, in a basic perspective view, a section of a spring coiling machine shown, namely a view of the spring wind room, while in FIG. 7 is a larger section of this spring winding machine (perspective view) is shown, the also the vertically movable tables for extending and retracting the tongs and for the Eyelet production turned turning shows.
- a cutting device 13, a forming tool 14 and a slewing gear 15 are from the Winding room for the already wound spring body 2 extended.
- a gripping tongs 5 and another slewing gear 8 each on a vertically movable holding table 17 and 18 are arranged in such a way that they are in an upwardly driven position each by means of its own drive 19 and 20 in one perpendicular to the travel direction a of the vertically extendable tables (and at the same time perpendicular to the wire feed direction of the wire strand 12) to the already manufactured Spring 1 can be moved in and out of this wegfahrbar.
- the shaping pin 9 is seated on the spring body 2 facing end of a tool which is mounted on the turntable 8 and through this can be rotated in the direction of rotation b. Since the forming pin 9 is not on the axis of rotation, but at a distance to this is attached to the turntable 8, performs a rotation in Direction of rotation b to the fact that the shaping pin 9 according to its distance from the Rotary axis of the turntable 8 corresponding radius along a circular path b (and in Both directions of the same) is movable.
- FIGS. 6 and 7 clearly show the gripper 5 with the two gripping jaws, namely the upper Gripping jaws 6 and the lower than mold jaws 7 formed second gripping jaws.
- the Fig. 6 and 7 show the gripping tongs 5 and the forming pin 9 in a not yet retracted Position.
- the gripping pliers 5 are subsequently moved from the position shown in FIGS. 6 and 7 in the direction of the wire strand 12 running out of the wire guide 11 and grip it directly behind the spring body 3. Thereafter, the cutting tool 13 moves and cuts off the leaked out of the wire guide 11 wire strand, so that then behind the spring body 2 of the rear wire section 4 is formed.
- the movements of the gripping tongs 5 and the forming pin 9 via the drives 19, 20 and the vertically movable tables 17, 18 are to form the eyelet 10 a total of a (in the figures not shown) program control controlled.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Optical Head (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE502004000585T DE502004000585D1 (de) | 2004-03-18 | 2004-03-18 | Verfahren zum Herstellen einer Öse am Ende eines aus einem Drahtstrang geformten Federkörpers und Vorrichtung zur Herstellung eines solchen |
| ES04006591T ES2262051T3 (es) | 2004-03-18 | 2004-03-18 | Procedimiento para la fabricacion de un ojal en el extremo de una cuerpo de muelle por una linea de alambre y dispositivo para la fabricacion del mismo. |
| AT04006591T ATE326300T1 (de) | 2004-03-18 | 2004-03-18 | Verfahren zum herstellen einer öse am ende eines aus einem drahtstrang geformten federkörpers und vorrichtung zur herstellung eines solchen |
| EP04006591A EP1577033B1 (fr) | 2004-03-18 | 2004-03-18 | Méthode de fabrication d'une boucle au brin d'extrémité d'un ressort à boudin et dispositif correspondant |
| US11/083,414 US7334445B2 (en) | 2004-03-18 | 2005-03-18 | Method for producing an end lug of a spring member formed of a strand of wire, and apparatus for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04006591A EP1577033B1 (fr) | 2004-03-18 | 2004-03-18 | Méthode de fabrication d'une boucle au brin d'extrémité d'un ressort à boudin et dispositif correspondant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1577033A1 true EP1577033A1 (fr) | 2005-09-21 |
| EP1577033B1 EP1577033B1 (fr) | 2006-05-17 |
Family
ID=34833648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04006591A Expired - Lifetime EP1577033B1 (fr) | 2004-03-18 | 2004-03-18 | Méthode de fabrication d'une boucle au brin d'extrémité d'un ressort à boudin et dispositif correspondant |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7334445B2 (fr) |
| EP (1) | EP1577033B1 (fr) |
| AT (1) | ATE326300T1 (fr) |
| DE (1) | DE502004000585D1 (fr) |
| ES (1) | ES2262051T3 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238317A (zh) * | 2019-07-22 | 2019-09-17 | 镇江市康特电子有限责任公司 | 一种用于红外线接收头引脚成型的工具 |
| CN110814217A (zh) * | 2019-11-09 | 2020-02-21 | 国网山东省电力公司泰安供电公司 | 一种拉线绑扎专用钳及使用方法 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4354965B2 (ja) * | 2006-04-07 | 2009-10-28 | 株式会社板屋製作所 | スプリング製造装置 |
| JP4373417B2 (ja) * | 2006-07-26 | 2009-11-25 | 株式会社板屋製作所 | スプリング製造装置及びその制御方法 |
| DE102009024688B3 (de) * | 2009-06-12 | 2010-07-22 | Wafios Ag | Greifeinrichtung für Bearbeitungsmaschinen für stab- und rohrförmige Werkstücke |
| DE102010014353B3 (de) * | 2010-04-09 | 2011-06-16 | Wafios Ag | Vorrichtung zur Herstellung einer Öse an einem Ende einer Schraubenfeder |
| CN103056252B (zh) * | 2013-01-29 | 2015-02-25 | 广州奥图弹簧有限公司 | 弹簧冲耳装置 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3405742A (en) * | 1965-07-07 | 1968-10-15 | Egon Hildebrandt | Wire bending apparatus |
| US3672410A (en) * | 1969-07-23 | 1972-06-27 | Heetmann & Finkensiep Kg | Apparatus for forming retaining members |
| FR2415497A1 (fr) * | 1978-01-30 | 1979-08-24 | Missioux Jean Leon | Machine a boucler des ressorts a boudin |
| JPS5666535A (en) * | 1979-11-02 | 1981-06-05 | Asahi Seiki Kogyo Kk | Method of automatically adjusting both end hook of coiled spring |
| JPS58151932A (ja) * | 1982-03-04 | 1983-09-09 | Asahi Seiki Kogyo Kk | フツク付コイルばねのフツク端の成形方法 |
| US6151942A (en) * | 1998-08-21 | 2000-11-28 | Kabushiki Kaisha Itaya Seisaku Sho | Spring manufacturing apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2843159A (en) * | 1956-01-11 | 1958-07-15 | Alfons A Bonde | Spring forming apparatus |
| US3025889A (en) * | 1960-02-04 | 1962-03-20 | Baird Machine Co | Wire forming machines |
| JPS55117537A (en) * | 1979-02-28 | 1980-09-09 | Asahi Seiki Kogyo Kk | Method and apparatus for continuous, automatic formation of coil spring having hook at both ends |
| JPS58159132A (ja) | 1982-03-17 | 1983-09-21 | Fujitsu General Ltd | キ−入力判別方法 |
| 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 |
| JPH02295625A (ja) * | 1989-05-08 | 1990-12-06 | Metsuku Mach Kk | コイルばね製造装置 |
-
2004
- 2004-03-18 AT AT04006591T patent/ATE326300T1/de not_active IP Right Cessation
- 2004-03-18 ES ES04006591T patent/ES2262051T3/es not_active Expired - Lifetime
- 2004-03-18 EP EP04006591A patent/EP1577033B1/fr not_active Expired - Lifetime
- 2004-03-18 DE DE502004000585T patent/DE502004000585D1/de not_active Expired - Lifetime
-
2005
- 2005-03-18 US US11/083,414 patent/US7334445B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3405742A (en) * | 1965-07-07 | 1968-10-15 | Egon Hildebrandt | Wire bending apparatus |
| US3672410A (en) * | 1969-07-23 | 1972-06-27 | Heetmann & Finkensiep Kg | Apparatus for forming retaining members |
| FR2415497A1 (fr) * | 1978-01-30 | 1979-08-24 | Missioux Jean Leon | Machine a boucler des ressorts a boudin |
| JPS5666535A (en) * | 1979-11-02 | 1981-06-05 | Asahi Seiki Kogyo Kk | Method of automatically adjusting both end hook of coiled spring |
| JPS58151932A (ja) * | 1982-03-04 | 1983-09-09 | Asahi Seiki Kogyo Kk | フツク付コイルばねのフツク端の成形方法 |
| US6151942A (en) * | 1998-08-21 | 2000-11-28 | Kabushiki Kaisha Itaya Seisaku Sho | Spring manufacturing apparatus |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 0051, no. 31 (M - 084) 21 August 1981 (1981-08-21) * |
| PATENT ABSTRACTS OF JAPAN vol. 0072, no. 71 (M - 260) 3 December 1983 (1983-12-03) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238317A (zh) * | 2019-07-22 | 2019-09-17 | 镇江市康特电子有限责任公司 | 一种用于红外线接收头引脚成型的工具 |
| CN110814217A (zh) * | 2019-11-09 | 2020-02-21 | 国网山东省电力公司泰安供电公司 | 一种拉线绑扎专用钳及使用方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004000585D1 (de) | 2006-06-22 |
| US20050204794A1 (en) | 2005-09-22 |
| ES2262051T3 (es) | 2006-11-16 |
| US7334445B2 (en) | 2008-02-26 |
| EP1577033B1 (fr) | 2006-05-17 |
| ATE326300T1 (de) | 2006-06-15 |
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