EP2324940B1 - Federherstellungsmaschine mit einem Werkzeughalter für das als Anschlag wirkende Formwerkzeug - Google Patents

Federherstellungsmaschine mit einem Werkzeughalter für das als Anschlag wirkende Formwerkzeug Download PDF

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Publication number
EP2324940B1
EP2324940B1 EP20090176966 EP09176966A EP2324940B1 EP 2324940 B1 EP2324940 B1 EP 2324940B1 EP 20090176966 EP20090176966 EP 20090176966 EP 09176966 A EP09176966 A EP 09176966A EP 2324940 B1 EP2324940 B1 EP 2324940B1
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EP
European Patent Office
Prior art keywords
abutting
sliding seat
axial transmission
machine
seat
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
EP20090176966
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English (en)
French (fr)
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EP2324940A1 (de
Inventor
David Wu
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.)
Nucoil Industries Co Ltd
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Nucoil Industries Co Ltd
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 Nucoil Industries Co Ltd filed Critical Nucoil Industries Co Ltd
Priority to EP20090176966 priority Critical patent/EP2324940B1/de
Publication of EP2324940A1 publication Critical patent/EP2324940A1/de
Application granted granted Critical
Publication of EP2324940B1 publication Critical patent/EP2324940B1/de
Not-in-force legal-status Critical Current
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    • 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
    • B21F3/00—Coiling wire into particular forms
    • B21F3/02—Coiling wire into particular forms helically
    • B21F3/06—Coiling wire into particular forms helically internally on a hollow form

Definitions

  • the present invention in general relates to a spring manufacturing machine with an abutting apparatus.
  • abutting apparatus adapted for forming a wire into the configuration of a coil spring by means of abutment with a wire forming tool.
  • wire is fed into the spring manufacturing machine via a feeding mechanism; in the meantime, an abutting apparatus is adapted for curling the wire into a spring, in particular a coil spring; finally, a cutting knife apparatus is applied to cut off the wire to complete the procedure of manufacturing a coil spring or curled spring.
  • the function of the abutting apparatus is to curl a linear wire into a curled spring by abutment with a wire forming tool.
  • a spring manufacturing machine usually has two abutting, assemblies arranged corresponding to each other at two sides thereof. By adjusting the positions of these two abutting assemblies it is possible to properly adjust the magnitude of the radius of the coil spring.
  • the abutting apparatus of a spring manufacturing machine usually includes a sliding seat and an abutting unit connected to be slidable on the sliding seat, such that the abutting unit can make a 1-D linear movement in an oblique direction relative to the spring manufacturing machine, whereby the magnitude of the radius of the manufacture coil spring can be adjusted.
  • the degree of freedom is insufficient, but also it is uneasy for the purpose of adjustment, when a 1-D linear movement is used to adjust the obliqueness relative to the spring manufacturing machine and to thereby properly adjust the magnitude of the radius of the coil spring to be manufactured.
  • the two abutting units of the spring manufacturing machine can also make two independent 2-D motions, whereby the positions of the abutting units relative to the wire feeding axle of the spring manufacturing machine can be adjusted at random, which indeed causes an inadequate flexibility in terms of the process of manufacturing a coil spring.
  • US 2008/0314110 A1 discloses a spring manufacturing apparatus according to the preamble of claim 1.
  • the spring manufacturing apparatus includes a supporting body which moves in X, Y, and Z-axes directions of a XYZ orthogonal coordinate system wherein a moving direction of a wire rod fed from a wire rod feeding unit is represented as a Z-axis.
  • the supporting body is formed with an opening in which the quill is arranged.
  • the supporting body further includes a tool holder for holding a processing tool for processing the wire rod to a spring.
  • the supporting body arranged at the vicinity of the quill is moved to accurately adjust the relative position of the quill and the processing tool, thereby manufacturing a desired spring.
  • This document also discusses related spring manufacturing apparatus of the prior art, wherein the relative position of the quill and the processing tool is adjusted by moving the wire rod feeding unit and the quill to process the wire rod, or wherein the relative position of the quill and the processing tool is adjusted by attaching the processing tool to the movable member and moving the tool, or wherein a quill is arranged between two movable tables, and the relative position of the processing tool is selected by the rotation of the turret and the quill is adjusted by moving the movable table.
  • the abutting assembly can be randomly moved in vertical and/or horizontal directions relative to the machine platform, such that the degree of freedom to adjust the abutting assembly can be enhanced significantly.
  • the first axial transmission mechanism comprises a first actuator, a first lead screw driven by the first actuator to rotate and a first sliding seat engaging with the first lead screw and being capable to perform a linear movement relative to the machine platform.
  • the second axial transmission mechanism comprises a second actuator fixed to the first sliding seat, a second lead screw driven to be rotated by the second actuator and a second sliding seat engaging with the second lead screw and being configured to be moved linearly relative to the first sliding seat.
  • the abutting assembly fixed to the second sliding seat can perform a 2-D movement in vertical and/or horizontal directions relative to the machine platform as desired and in accordance with the geometrical configuration of the coil spring to be manufactured.
  • the spring manufacturing machine has a machine platform and a spring wire feeding axle
  • the abutting apparatus comprises a pair of first axial transmission mechanisms, a pair of second axial transmission mechanisms and a pair of abutting assemblies.
  • the pair of first axial transmission mechanisms which are respectively formed at an upper and lower sides of a central line of the spring wire feeding axle, are of substantially identical configuration and each comprises a first actuator fixed to the machine platform, a first lead screw driven by the first actuator to rotate and a first sliding seat engaging with the first lead screw and being capable to perform a linear movement relative to the machine platform.
  • Each of the pair of second axial transmission mechanisms comprises a second actuator fixed to the first sliding seat, a second lead screw driven to rotate by the second actuator and a second sliding seat engaging with the second lead screw and linearly moved relatively to the first sliding seat.
  • the pair of abutting assemblies respectively fixed to the second sliding seat can independently make a 2-D movement in vertical and horizontal directions relative to the machine platform.
  • the invention accomplishes in particular the following functions and advantages.
  • the drawback of the spring manufacturing machines according to the prior art according to which the abutting apparatus can only be adjusted by a linear movement in a single direction, can be overcome according to the present invention by an arbitrarily adjustable 2-D movement in vertical and/or horizontal directions, so that according to the present invention the positions of the abutting assemblies can be conveniently adjusted relative to the machine platform and the spring wire feeding axle to enhance the flexibility in the spring manufacturing process.
  • the pair of abutting assemblies can be moved -independently and simultaneously to thereby enable many different directions of movement, coil springs with a more complicated 3-D configuration can be manufactured.
  • the first and second transmission mechanisms can enhance the variability of the locations and angles of the movement of the abutting assemblies.
  • the first and second axial transmission mechanisms can be moved in a linear motion, according to the present invention a more accurate positioning can be achieved and it is easier in terms of operation.
  • the movement of the pair of abutting assemblies can be respectively and independently controlled by using a computer, so that according to the present invention the flexibility in manufacturing the spring can be enhanced significantly and the difficulty of configuration can be also lowered down in great scale.
  • the spring manufacturing machine 1 has an abutting apparatus 2, a machine platform 10 and a spring wire feeding axle 11 (as shown in Fig. 8 ).
  • the abutting apparatus 2 includes a pair of first axial transmission mechanisms 20, a pair of second axial transmission mechanisms 30 and a pair of abutting assemblies 40 configured to curl a linear metal wire into a curled spring or coil spring by means of abutment of the wire against a wire forming tool.
  • the pair of first axial transmission mechanisms 20 are respectively formed at an upper and lower side of a central line of the spring wire feeding axle 11 and are of substantially identical configuration.
  • the first axial transmission mechanism 20 includes a first actuator 21 fixed to the machine platform 10, a first lead screw 22 driven by the first actuator 21 to rotate and a first sliding seat 23 connected to the first lead screw 22 and able to make a linear movement relative to the machine platform 10.
  • the pair of second axial transmission mechanisms 30 are of substantially identical configuration and respectively include a second actuator 31 fixed to the first sliding seat 23, a second lead screw 32 driven by the second actuator 31 to rotate and a second sliding seat 33 connected to the second lead screw 32 and can make a linear movement relative to the first sliding seat 23.
  • the pair of abutting assemblies 40 are respectively fixed to the second sliding seat. Via the first axial transmission mechanism 20 and the second axial transmission mechanism 30, the abutting assembly 40 can perform vertical and horizontal movements, in particular linear movements in vertical and horizontal directions, relative to the machine platform 10.
  • the abutting assembly 40 includes a fixing seat 41 fixed to the second sliding seat 33 and an abutting telescopic rod 42 screwed with the fixing seat 41, such that the abutting telescopic rod 42 can make an oblique movement relative to the second sliding seat 33 to adjust the position thereof:
  • first actuator 21 and the second actuator 31 can be a stepping motor or a servo motor; however, the present invention shall not be limited to these two kinds of exemplary embodiments only.
  • the first sliding seat 23 includes a first plate body 231 and a first nut 232 connected fixedly to the first plate body 231 and screwed with the first lead screw 22 correspondingly.
  • the second sliding seat 33 includes a second plate body 331 and a second nut 332 connected fixedly to the second plate body 331 and screwed with the second lead screw 32 correspondingly.
  • the first sliding seat 23 further includes a first sliding block 233 fixed to the first plate body 231 and located at the same side of the first nut 232.
  • the first sliding block 233 is provided with a first sliding slot 2331.
  • the machine platform 10, in the meantime, has a slide 12.
  • the first sliding slot 2331 is configured for the slide 12 to be slid and inset therein.
  • the first sliding seat 23 also includes a first slide 234 connected fixedly to another side of the first plate body 231.
  • the second sliding seat 33 includes a second sliding block 333 fixed to the second plate body 331 and located at the same side of the second nut 332.
  • the second sliding block 333 is provided with a second sliding slot 3331 configured for the first slide 234 to be inset therein.
  • Fig. 5 and Fig. 6 respectively are an actuating illustration (1) and an actuating illustrate (2) by viewing from the front of the abutting apparatus according to the present invention.
  • the abutting assembly 40 By moving the first axial transmission mechanism 20 relative to the machine platform 10, the abutting assembly 40 can be moved vertically.
  • the abutting assembly 40 By moving the second axial transmission mechanism 30 relative to the first axial transmission mechanism 20, the abutting assembly 40 can be moved horizontally. By so doing, the abutting assembly 40 can be moved in a 2-D rectangular coordinate system. The degree of freedom to adjust the abutting assembly 40 can be thus enhanced.
  • the pair of abutting assemblies 40 can be moved independently in a 2-D rectangular coordinate system.
  • the abutting assembly 40 when processing a linear metal wire to form a curled spring or a coil spring, the abutting assembly 40 is directed towards the spring wire feeding axle 11 (as shown in Fig. 8 ) and only performs a horizontal movement relative to the spring wire feeding axle 11 without any vertical movement.
  • the abutting assembly 40 located above the spring wire feeding axle 11 then can perform a horizontal, vertical or oblique movement.
  • An "oblique movement” mentioned here means that the tracks of the abutting assembly 40 can be linear or curved, including an are-shaped or parabola-shaped course of the guiding tracks.
  • the abutting assembly 40 can be moved obliquely so that the wire forming tools can finally get into abutment with the linear metal wire to be curled to the desired coil spring.
  • the movement of the abutting assembly 40 can be controlled at random, in accordance with the shape of the coil spring to be manufactured. For example, if the proportion between the rightward movement of the second sliding seat 33 and the upward movement of the first sliding seat 23 is 1:1, then the abutting assembly 40 will be moved to the right with a lifting angle of 45 degrees. If the proportion is 1: ⁇ 3, then the abutting assembly 40 will be moved to the right with a lifting angle of 60 degrees.
  • an arbitrary 2D-movement of the abutting assembly 40 can be achieved, which significantly enhances the degree of freedom in manufacturing coil springs.
  • FIG. 7 is illustrates possible exemplary movements of the abutting assemblies in an abutting apparatus.
  • the abutting assembly 40 located above the spring wire feeding axle 11 (as shown in Fig. 8 ) is moved obliquely, while another abutting assembly 40 directed towards the spring wire feeding axle 11 is moved horizontally.
  • a pair of first axial transmission mechanisms 20 and a pair of second axial transmission mechanisms 30 are arranged at an upper and lower side of the spring wire feeding axle 11, respectively.
  • Fig. 10 through Fig. 12 are a perspective outer view, an actuation status illustration (1) and an actuation status illustration (2) of a cross-sectional view along the line "11-11" in Fig. 10 according to a preferred embodiment of the present invention.
  • the abutting assembly 40' includes a wire configuration knife seat 41', a wire configuration knife 42' pivoted to the wire configuration knife seat 41' and a driving block 43'.
  • the wire configuration knife seat 41' is fixed to the second sliding seat 33, while the driving block 43' is fixed onto the machine platform 10 (not shown in the figures) and abutted against one side of the wire configuration knife 42'.
  • the wire configuration knife seat 41' fixed to the second sliding seat 33 is moved relatively to the driving block 43', the wire configuration knife 42' can be swung relatively to the wire configuration knife seat 41'.
  • one side of the wire configuration knife 42' is arranged a bearing 421'.
  • the driving block 43' is arranged a lead slot 431' that is shown as an oblique configuration and provided for the bearing 421' to be slid therein.
  • the relative movement between the second sliding seat 33 and the machine platform 10 can make the wire configuration knife 42' moved upwardly and downwardly in a third axial direction. Since the wire configuration knife 42' is swung in a third axial direction, a collision phenomenon can be avoided when the spring is configured by being fed out from the spring wire feeding axle 11 (as shown in Fig. 9 ).
  • the abutting apparatus according to the present invention is an indispensable component for a spring manufacturing machine indeed, which may positively reach the expected usage objective for solving the drawbacks of the prior arts.

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

Claims (8)

  1. Ein Federherstellungsmaschine mit einer als Anschlag wirkenden Vorrichtung, wobei die Federherstellungsmaschine (1) ein Maschinengestell (10) aufweist, wobei die als Anschlag wirkende Vorrichtung (2) umfasst:
    einen ersten axialen Getriebemechanismus (20), der ein erstes Betätigungsglied (21), das an dem Maschinengestell (10) befestigt ist, eine erste Gewindespindel (22), die von dem ersten Betätigungsglied (21) angetrieben wird, um sich zu drehen, und einen ersten Gleitsitz (23) aufweist, der mit der ersten Gewindespindel (22) gekoppelt ist und in der Lage ist, eine lineare Bewegung relativ zu dem Maschinengestell (10) auszuführen;
    einen zweiten axialen Getriebemechanismus (30), der ein zweites Betätigungsglied (31), das an dem ersten Gleitsitz (23) befestigt ist, eine zweite Gewindespindel (32), die von dem zweiten Betätigungsglied (31) angetrieben wird, um sich zu drehen, und einen zweiten Gleitbesitz (33) aufweist, der mit der zweiten Gewindespindel (32) gekoppelt ist und in der Lage ist, sich relativ zum ersten Gleitsitz (23) linear zu bewegen; und
    eine als Anschlag wirkende Anordnung (40 oder 40 '), die an dem zweiten Gleitsitz (33) befestigt ist und in der Lage ist, eine zweidimensionale Bewegung in vertikaler und/oder horizontaler Richtung relativ zu dem Maschinengestell (10) über den ersten axialen Getriebemechanismus (20) und den zweiten axiale Getriebemechanismus (30) auszuführen;
    dadurch gekennzeichnet, dass die als Anschlag wirkende Anordnung (40 ') umfasst,
    - eine Drahtausbildungs-Messeraufnahme (41'), die an dem zweiten Gleitsitz (33) befestigt ist, und ein Drahtausbildungs-Messer (42'), das schwenkbar an der Drahtausbildungs-Messeraufnahme (41') angeordnet ist, wobei eine Seite des Drahtausbildungs-Messers (42') mit einem Lager (421 verstehen ist; und
    - einen Antriebsblock (43 '), der auf dem Maschinengestell (10) befestigt ist und mit einer Führungsnut (431') für das Lager (421') versehen ist, sodass dieses darin gleitbeweglich aufgenommen ist, derart dass die Bewegung der Drahtausbildungs-Messeraufnahme bewirkt, dass das Drahtausbildungs-Messer (42') in einer dritten axialen Richtung relativ zu der Drahtausbildungs-Messeraufnahme (41') schwingt.
  2. Die Maschine nach Anspruch 1, wobei die erste Gleitplatte (23) einen ersten Plattenkörper (231) und eine erste Mutter (232) aufweist, die fest mit dem ersten Plattenkörper (231) verbunden ist und sich in einem Eingriff mit der ersten Gewindespindel (22) befindet.
  3. Die Maschine gemäß Patentanspruch 1 oder 2, wobei der zweite Gleitsitz (33) einen zweiten Plattenkörper (331) und eine zweite Mutter (332) aufweist, die fest mit dem zweiten Plattenkörper (331) verbunden ist und sich in einem Eingriff mit der zweiten Gewindespindel (32) befindet.
  4. Die Maschine nach einem der vorhergehenden Ansprüche, wobei das erste Gleitsitz (23) als eine erste Gleitnut (2331) ausgelegt ist, die zum Eingriff mit dem Maschinengestell (10) ausgelegt ist, so dass der erste Gleitsitz (23) gleitend relativ zu dem Maschinengestell (10) bewegt werden kann.
  5. Die Maschine nach Anspruch 4, wobei der erste Gleitsitz (23) ferner einen ersten Gleiter bzw. Schieber (234)aufweist, der fest mit dem ersten Plattenkörper (231) verbunden ist, und wobei der zweite Gleitsitz (33) als eine zweite Gleitnut ausgebildet (3331) ist, die ausgelegt ist zum Aufnehmen und Führen einer Gleitbewegung des ersten Gleiters bzw. Schiebers (234).
  6. Die Maschine nach einem der vorhergehenden Ansprüche, wobei die als Anschlag wirkende Anordnung (40) eine Befestigungsaufnahme (41) aufweist, die an dem zweiten Gleitsitz (33) befestigt ist, sowie eine als Anschlag wirkende Teleskopstange (42), die mit der Befestigungsaufnahme (41) verschraubt ist, und wobei die als Anschlag wirkende Teleskopstange (42) eine schräge Bewegung relativ zu dem zweiten Gleitsitz (33) ausführen kann
  7. Die Maschine nach einem der vorhergehenden Ansprüche, wobei die Führungsnut (431') schräg ausgebildet ist.
  8. Die Maschine nach einem der vorhergehenden Ansprüche, weiterhin umfassend:
    einen weiteren axialen Getriebemechanismus (20), der dem ersten axialen Getriebemechanismus (20) zugeordnet und gleich ausgelegt ist, derart, dass die beiden axialen Getriebemechanismen gemeinsam ein Paar von ersten axialen Getriebemechanismen (20) ausbilden, die jeweils auf einer oberen Seite und einer unteren Seite einer zentralen Linie der Federdraht-Zuführachse (11) angeordnet sind und jeweils in der Lage sind, eine lineare Bewegung relativ zu dem Maschinengestell (10) auszuführen;
    einen weiteren axialen Getriebemechanismus (30), der dem zweiten axialen Getriebemechanismus (30) zugeordnet und gleich ausgelegt ist, derart, dass die beiden axialen Getriebemechanismen gemeinsam ein Paar von zweiten axialen Getriebemechanismen (30) bilden; und
    eine weitere als Anschlag wirkende Anordnung, die der als Anschlag wirkenden Anordnung zugeordnet und gleich ausgelegt ist, derart, dass die beiden als Anschlag wirkenden Anordnungen gemeinsam ein Paar von als Anschlag wirkenden Anordnungen(40) ausbilden, die jeweils an dem zweiten Gleitsitz (33) befestigt sind und in der Lage sind, unabhängig voneinander eine zweidimensionale Bewegung in vertikaler und horizontaler Richtung relativ zu dem Maschinengestell (10) über das Paar von ersten axialen Getriebemechanismen (20) und das Paar von zweiten Getriebemechanismen (30) auszuführen.
EP20090176966 2009-11-24 2009-11-24 Federherstellungsmaschine mit einem Werkzeughalter für das als Anschlag wirkende Formwerkzeug Not-in-force EP2324940B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20090176966 EP2324940B1 (de) 2009-11-24 2009-11-24 Federherstellungsmaschine mit einem Werkzeughalter für das als Anschlag wirkende Formwerkzeug

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Application Number Priority Date Filing Date Title
EP20090176966 EP2324940B1 (de) 2009-11-24 2009-11-24 Federherstellungsmaschine mit einem Werkzeughalter für das als Anschlag wirkende Formwerkzeug

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EP2324940A1 EP2324940A1 (de) 2011-05-25
EP2324940B1 true EP2324940B1 (de) 2013-01-09

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EP20090176966 Not-in-force EP2324940B1 (de) 2009-11-24 2009-11-24 Federherstellungsmaschine mit einem Werkzeughalter für das als Anschlag wirkende Formwerkzeug

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE893183C (de) * 1951-08-02 1953-10-15 Wafios Wagner Maschf Verfahren und Einrichtung zur selbsttaetigen Herstellung von Schraubenfedern
US6000265A (en) * 1997-06-10 1999-12-14 Kabushiki Kaisha Itaya Seisaku Sho Spring manufacturing apparatus
FR2896439B1 (fr) * 2006-01-25 2008-04-04 Michel Monnet Dispositif d'unsinage par decolletage de deux faces transversales d'une piece mise en rotation
JP5110975B2 (ja) * 2007-06-20 2012-12-26 新興機械工業株式会社 ばね製造機

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