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WO2018221646A1 - Procédé de production d'anneau sans fin - Google Patents

Procédé de production d'anneau sans fin Download PDF

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Publication number
WO2018221646A1
WO2018221646A1 PCT/JP2018/020934 JP2018020934W WO2018221646A1 WO 2018221646 A1 WO2018221646 A1 WO 2018221646A1 JP 2018020934 W JP2018020934 W JP 2018020934W WO 2018221646 A1 WO2018221646 A1 WO 2018221646A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
endless
manufacturing
opening
ring 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.)
Ceased
Application number
PCT/JP2018/020934
Other languages
English (en)
Japanese (ja)
Inventor
匡彦 勝田
伊藤　洋平
拓之 大畑
崇士 尾林
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.)
Aisin AW Co Ltd
Original Assignee
Aisin AW 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 Aisin AW Co Ltd filed Critical Aisin AW Co Ltd
Publication of WO2018221646A1 publication Critical patent/WO2018221646A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/14—Making other particular articles belts, e.g. machine-gun belts
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G5/00—V-belts, i.e. belts of tapered cross-section
    • F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts

Definitions

  • the invention of the present disclosure disclosed in the present specification relates to a method for manufacturing an endless ring.
  • Each push sesame includes a body part, a pair of pillar parts, and a pair of bowl-shaped parts.
  • the body portion has two side contact surfaces that are inclined so as to be in frictional contact with both inner side surfaces of the annular V groove of the pulley on both outer side surfaces, and a band mounting surface for mounting the band.
  • the pair of pillar portions are erected from the body portion along an extension line of the side contact surface of the body portion.
  • a pair of hook-shaped parts are extended inward from the front-end
  • An opening for inserting a plurality of hands arranged in layers is formed between the pair of hook-shaped portions.
  • the band inserted from the opening of the push sesame is placed on the band placement surface at the upper end of the body part.
  • the width of the opening is slightly narrower than the width of the band, and a single retainer (retainer ring) wider than the opening is used as the outermost layer of the band in order to securely hold the push sesame and the band. It is arranged on the outer periphery.
  • the retainer is assembled by bending it into an inverted U-shaped cross section and pushing the retainer in a state where the width of the retainer is made smaller than the width of the opening of the sesame, and is inserted into the opening.
  • the retainer is formed with a long hole in order to facilitate bending and improve the assembly workability.
  • the manufacture of an endless ring such as a band (binding ring) or a retainer (retainer ring) includes a welding process in which end portions of a band-shaped metal plate are butted and welded to form an endless cylindrical body, and a cylindrical body. It can be performed by sequentially executing a cutting step for cutting into a ring body having a predetermined width, a rolling step for rolling the ring body, and a circumferential length adjusting step for adjusting the circumferential length of the rolled ring body.
  • a cutting step for cutting into a ring body having a predetermined width
  • a rolling step for rolling the ring body
  • a circumferential length adjusting step for adjusting the circumferential length of the rolled ring body.
  • an opening forming step is further added. At this time, how and in what order the opening forming steps are performed can be recognized as an important issue in efficiently manufacturing the endless ring.
  • the manufacturing method of an endless ring of the present disclosure is mainly intended to enable an endless ring having an opening to be manufactured efficiently.
  • the manufacturing method of the endless ring according to the present disclosure employs the following means in order to achieve the main object described above.
  • An endless ring manufacturing method is an endless ring manufacturing method for manufacturing an endless ring used for a transmission belt of a belt-type continuously variable transmission, in which end portions of a belt-shaped metal plate are butted and welded endlessly.
  • the gist of the present invention is to include a polishing step to perform, a rolling step to roll the polished ring body, and a circumference adjustment step to adjust the circumference of the rolled ring body.
  • This manufacturing method of an endless ring sequentially executes a welding process, a cutting process, a polishing process, a rolling process, and a circumferential length adjusting process. And the opening formation process which forms the opening of a ring body between a cutting process and a grinding
  • polishing of the cut surface (opening edge) of a ring body by an opening formation process are realizable by one grinding
  • FIG. 1 is a configuration diagram of a continuously variable transmission 1 having a transmission belt 10.
  • FIG. 2 is a partial cross-sectional view of a transmission belt 10.
  • FIG. 1 is an external view of a retainer ring 30.
  • FIG. 4A is an explanatory view showing the long hole 30o and the welded portion 30w of the retainer ring 30 of the present embodiment
  • FIG. 4B is an explanatory view showing the long hole 130o and the welded portion 130w of the retainer ring 130 of the comparative example.
  • 5A to 5N are process diagrams showing the manufacturing process of the retainer ring 30.
  • FIG. FIG. 3 is a configuration diagram of a punching device 40. 7A and 7B are explanatory views showing the state of the polishing process.
  • FIG. 1 is a configuration diagram of a continuously variable transmission 1 having a transmission belt 10.
  • the continuously variable transmission 1 includes a primary shaft 2 as a drive side rotation shaft, a primary pulley 3 that rotates integrally with the primary shaft 2, and a driven side rotation shaft that is arranged in parallel with the primary shaft 2.
  • Secondary shaft 4 a secondary pulley 5 that rotates integrally with the secondary shaft 4, a transmission belt wound around a pulley groove (V-shaped groove) of the primary pulley 3 and a pulley groove (V-shaped groove) of the secondary pulley 5.
  • the primary shaft 2 is connected to an input shaft connected to a power source such as an engine via a forward / reverse switching mechanism.
  • the secondary shaft 4 is connected to the drive shaft via a gear mechanism or a differential gear.
  • the continuously variable transmission 1 can change the torque transmitted to the primary shaft 2 steplessly and output it to the secondary shaft 4 by changing the groove width of the primary pulley 3 and the groove width of the secondary pulley 5. .
  • FIG. 2 is a partial cross-sectional view showing the transmission belt 10.
  • the transmission belt 10 includes a single laminated ring 12 formed by laminating a plurality of (in this embodiment, nine) ring members 11 in the ring radial direction (thickness direction), and a laminated ring 12.
  • the plurality of ring members 11 constituting the laminated ring 12 are obtained by welding strips cut out from steel plate drums in a ring shape, and having substantially the same thickness and different perimeters predetermined for each. It is processed to have.
  • Each element 20 is punched from a steel plate by, for example, press working, and as shown in FIG. 2, a main body portion 21 that extends horizontally in the drawing, and extends in the same direction from both end portions of the main body portion 21. It has a pair of pillar part 22 and the recessed part 23 as a ring accommodating part defined between a pair of pillar part 22 so that it might open to the extension side of each pillar part 22. As shown in FIG.
  • the pair of pillar portions 22 are arranged in the radial direction of the laminated ring 12 from both sides in the width direction of the saddle surface 23 s which is the bottom surface of the recessed portion 23 (in the direction from the inner circumferential side to the outer circumferential side of the laminated ring 12, that is, the upper side in FIG.
  • a pair of hook portions 22f projecting in the width direction of the saddle surface 23s is formed at the extending end portion of each pillar portion 22.
  • the pair of hook portions 22f protrude so as to be opposed to each other with an interval slightly longer than the width of the laminated ring 12 (ring material 11).
  • the laminated ring 12 is disposed in the concave portion 23, and the saddle surface 23 s of the concave portion 23 is in contact with the inner peripheral surface of the laminated ring 12, that is, the inner peripheral surface of the innermost ring material 11.
  • the retainer ring 30 is formed by welding a strip cut out from a steel plate drum into a ring shape, and has a thickness substantially the same as or thinner than the ring material 11 and a longer circumference than the outermost ring material 11. It is formed by a length and a width longer than the interval between the pair of hook portions 22f.
  • the retainer ring 30 is elastically deformed in the width direction in a state in which the laminated ring 12 is accommodated in the recesses 23 of all the elements 20, and is fitted into the recesses 23 between the pair of hook portions 22f of each element 20. It is.
  • the retainer ring 30 is disposed between the outer peripheral surface of the ring material 11 of the outermost layer of the multilayer ring 12 and the inner peripheral surface of the hook portion 22f of each element 20, and surrounds the multilayer ring 12, and each element 20 Is prevented from falling off the laminated ring 12.
  • the retainer ring 30 is formed with an opening (long hole) 30o as shown in FIG. 3, which makes it easy to elastically deform the retainer ring 30 in the width direction. Adequacy can be secured.
  • FIG. 4A is an explanatory view showing the long hole 30o and the welded portion 30w of the retainer ring 30 of the present embodiment
  • FIG. 4B is an explanatory view showing the long hole 130o and the welded portion 130w of the retainer ring 130 of the comparative example.
  • the retainer rings 30 and 130 are formed by welding strips in a ring shape and extending them to a desired peripheral length. For this reason, if the retainer rings 30 and 130 are extended in a state where the influence of welding remains, constriction occurs in the welded portions 30w and 130w as shown exaggeratedly in FIGS. 4A and 4B.
  • FIG. 4A is an explanatory view showing the long hole 30o and the welded portion 30w of the retainer ring 30 of the present embodiment
  • FIG. 4B is an explanatory view showing the long hole 130o and the welded portion 130w of the retainer ring 130 of the comparative example.
  • the retainer rings 30 and 130 are formed by welding strips in a ring shape
  • the opening 130 o of the retainer ring 130 of the comparative example is formed so that a part thereof covers the welded portion 130 w in the width direction.
  • the width of the opening 130o is a
  • the width from the width direction end of the non-welded part to the edge of the opening 130o is X
  • the width of the opening 130o from the width direction end of the welded part 130w is X ′
  • the constriction depth of the welded portion 130w is t
  • the width of the non-welded portion is L
  • the cross-sectional area reduction rate at the welded portion 130w can be expressed by X ′ / X. .
  • the opening 30o of the retainer ring 30 of this embodiment is formed so as not to reach the welded portion 30w in the width direction, as shown in FIG. 4A.
  • the width of the opening 30 o is a
  • the constriction depth of the welded portion 30 w is t
  • the width of the welded portion 30 w (distance between the constrictions)
  • the retainer ring 30 is manufactured by the manufacturing process illustrated in FIGS. 5A to 5N.
  • the manufacturing process of the retainer ring 30 includes (a) a strip cutting process, (b) a bending process, (c) a pre-welding cleaning process, (d) a welding process, and (e) a solution.
  • the strip cutting step is a strip of a predetermined size by cutting a strip-shaped steel plate (maraging steel plate) having a predetermined thickness (for example, 0.4 to 0.5 mm) wound around a drum in the width direction. This is a step of cutting the plate 31.
  • the strip cutting process can be performed using a cutter or a laser cutting machine having a cutting edge.
  • a bending process is a process which shape
  • the pre-welding cleaning step is a step of degreasing and cleaning the cylindrical body 32 before welding the butted portion of the cylindrical body 32.
  • the cleaning process before welding can be performed by, for example, shower cleaning or ultrasonic cleaning.
  • the welding process is a process of performing butt welding for welding the butt portion of the cylindrical body 32.
  • the welding process can be performed by, for example, laser welding or plasma welding.
  • the first solution treatment step (annealing step) is a step for leveling the hardness distribution around the welded portion changed in the welding step and improving the spreadability.
  • the ring cutting step is a step of cutting the cylindrical body 32 into a plurality of ring bodies 33 having a predetermined width, and can be performed using a cutter cutting machine, a laser cutting machine, or the like.
  • the drilling step is a step of forming the opening 33o in the ring body 33 cut to a predetermined width, and can be performed using, for example, the drilling device 40 illustrated in FIG.
  • the drilling device 40 is a laser processing machine that performs processing by laser, and a pair of tension rollers 41 and 42 that apply tension to the ring body 33 and a processing surface (hole drilling) of the ring body 35.
  • Clamps 43 and 44 that fix both sides of the machining surface so that the surface is parallel to the horizontal plane (XY plane), a laser oscillator (not shown), and a laser from the laser oscillator is emitted toward the machining surface of the ring body 35.
  • a drive unit (not shown) that moves the head 45 in the X and Y directions, and a recovery unit 46 that is provided on the back side of the processing surface of the ring body 35 and recovers processing waste generated by laser processing.
  • the ring body 33 is stretched over a pair of tension rollers 41, 42, and the pair of tension rollers 41, 42 are separated from each other, thereby applying tension to the ring body 33. Both sides of the processed surface of the body 33 are fixed. At this time, the fixing position of the ring body 33 is adjusted by rotating the tension rollers 41 and 42 so that the processed surface of the ring body 33 does not reach the welded portion.
  • the drilling step is not limited to the one using the above-described drilling device 40 (laser processing machine), and an electric discharge machine that performs processing by arc discharge or a water cutter that performs processing by injecting pressurized water. Alternatively, a press machine for punching can be used.
  • the polishing step includes a cut surface (width direction end) of the ring body 33 by the ring cutting step, and a cut surface (opening 33o) of the ring body 33 by the drilling step. And is processed into a round shape (chamfering), and in this embodiment, is performed by barrel polishing.
  • a drilling step is provided between the ring cutting step and the polishing step, so that a polishing step necessary after the ring cutting step and a drilling step are performed. Necessary polishing steps can be performed together in one polishing step. Thereby, it is only necessary to add the drilling device 40 as a manufacturing facility for forming the opening, and the ring body having the opening can be efficiently manufactured at low cost.
  • the pre-rolling cleaning step is a step of removing polishing debris and the like attached to the ring body 33 in the polishing step (barrel polishing) before rolling the ring body 33.
  • the cleaning process can be performed by, for example, shower cleaning or ultrasonic cleaning.
  • the rolling step is a step of rolling the ring body 33 to a necessary plate thickness using a rolling roller to form the ring body 34.
  • the post-rolling cleaning step is a step of removing rolling oil and the like attached to the ring body 34 by rolling.
  • the second solution forming step is a step of heating the rolled ring body 34 to recrystallize the metal structure deformed by rolling.
  • the circumferential length adjusting step is a step of adjusting the circumferential length of the rolled ring body 34 to obtain the ring body 35.
  • the circumference adjusting step for example, the ring body 34 rolled over a pair of rolls is bridged, and the pair of rolls are separated from each other, thereby adjusting the circumference of the ring body 34.
  • the aging / nitriding step is a step of strengthening the surface of the ring body 35 by nitriding the ring body 35 after aging treatment. Thereby, the retainer ring 30 in which the opening 30o is formed is formed.
  • the drilling process for forming the opening 33o (opening 30o) in the ring body 33 (retainer ring 30) is performed by the ring cutting process and the polishing process. Run in between.
  • the polishing process is performed after the drilling process, the cut surface (width direction end) of the ring body 33 by the ring cutting process and the cut surface (opening edge) of the ring body 33 by the drilling process are obtained. It can grind
  • the long hole-shaped opening is formed in the hole making step (opening forming step).
  • the present invention is not limited to this, and any shape such as a circle, an ellipse, or a polygon can be used.
  • An opening may be formed.
  • the opening 33o is formed so as not to be applied to the welded portion in the width direction of the ring body 33 in the drilling step (opening forming step). I do not care.
  • the aging / nitriding step is performed as the final step. However, depending on the required quality, the aging / nitriding step may be omitted.
  • the manufacturing method of the endless ring of the present disclosure is the manufacturing method of the endless ring (30) for manufacturing the endless ring (30) used in the transmission belt (10) of the belt-type continuously variable transmission (1).
  • a welding process, a cutting process, a polishing process, a rolling process, and a circumferential length adjusting process are sequentially performed.
  • polishing process is performed.
  • polishing of the cut surface (opening edge) of a ring body by an opening formation process are realizable by one grinding
  • the polishing step (h) may be chamfered at the width direction end and the opening of the ring body (33) by barrel polishing. If it carries out like this, the width direction edge part and opening part of a ring body can be grind
  • the endless ring manufacturing method of the present disclosure may include an aging / nitriding step (n) in which an aging treatment and a nitriding treatment are performed on the ring body (35) having an adjusted circumference. If it carries out like this, it can strengthen the surface of an endless ring and can improve the quality.
  • a cleaning step (i) for cleaning the ring body (33) may be provided between the polishing step (h) and the rolling step (j). .
  • the opening (33o) is formed at a position that does not contact the welded portion of the ring body (33). It may be formed. If it carries out like this, when tension
  • the main body (21) including the binding ring (12) and the saddle surface (23s) that contacts the inner peripheral surface of the binding ring (12), and the saddle surface (23s).
  • the invention of the present disclosure can be used in the manufacturing industry of endless rings.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

L'invention concerne un procédé de production d'anneau sans fin destiné à produire un anneau sans fin utilisé pour une courroie de transmission d'une transmission à variation continue de type à courroie, comprenant : une étape de soudage pour former un corps cylindrique sans fin par soudage d'extrémités aboutées d'une plaque métallique de type courroie ; une étape de découpe pour découper le corps cylindrique en un corps annulaire d'une largeur prescrite ; une étape de formation d'ouverture pour former une ouverture dans le corps d'anneau découpé ; une étape de meulage pour meuler l'ouverture et une extrémité dans la direction de largeur du corps d'anneau dans laquelle l'ouverture a été formée ; une étape de laminage pour laminer le corps d'anneau meulé ; et une étape de réglage de longueur circonférentielle pour régler la longueur circonférentielle du corps d'anneau laminé.
PCT/JP2018/020934 2017-06-02 2018-05-31 Procédé de production d'anneau sans fin Ceased WO2018221646A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017110228A JP2018204685A (ja) 2017-06-02 2017-06-02 無端リングの製造方法
JP2017-110228 2017-06-02

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WO2018221646A1 true WO2018221646A1 (fr) 2018-12-06

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PCT/JP2018/020934 Ceased WO2018221646A1 (fr) 2017-06-02 2018-05-31 Procédé de production d'anneau sans fin

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109822298A (zh) * 2019-01-31 2019-05-31 中国航发动力股份有限公司 一种开口挡圈及其加工方法
EP3546601A1 (fr) * 2018-03-30 2019-10-02 Toyota Jidosha Kabushiki Kaisha Procédé de fabrication d'un anneau métallique sans fin

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003042235A (ja) * 2001-07-30 2003-02-13 Fukuju Kogyo Kk 金属エレメント、金属バンド及び金属ベルト
JP2003221871A (ja) * 2002-01-31 2003-08-08 Daiwa House Ind Co Ltd 柱梁接合構造
WO2005019684A1 (fr) * 2003-08-26 2005-03-03 Fukuju Kogyo Kabushiki Kaisha Ceinture métallique et bloc poussoir utilisé avec cette dernière
JP2007075861A (ja) * 2005-09-15 2007-03-29 Daido Kogyo Co Ltd チェーン及びチェーンプレートの穴加工方法
JP2012167308A (ja) * 2011-02-10 2012-09-06 Toyota Motor Corp 無端金属ベルトの製造方法および無端金属ベルト

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003042235A (ja) * 2001-07-30 2003-02-13 Fukuju Kogyo Kk 金属エレメント、金属バンド及び金属ベルト
JP2003221871A (ja) * 2002-01-31 2003-08-08 Daiwa House Ind Co Ltd 柱梁接合構造
WO2005019684A1 (fr) * 2003-08-26 2005-03-03 Fukuju Kogyo Kabushiki Kaisha Ceinture métallique et bloc poussoir utilisé avec cette dernière
JP2007075861A (ja) * 2005-09-15 2007-03-29 Daido Kogyo Co Ltd チェーン及びチェーンプレートの穴加工方法
JP2012167308A (ja) * 2011-02-10 2012-09-06 Toyota Motor Corp 無端金属ベルトの製造方法および無端金属ベルト

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3546601A1 (fr) * 2018-03-30 2019-10-02 Toyota Jidosha Kabushiki Kaisha Procédé de fabrication d'un anneau métallique sans fin
CN109822298A (zh) * 2019-01-31 2019-05-31 中国航发动力股份有限公司 一种开口挡圈及其加工方法

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