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WO2019188769A1 - Procédé de moulage de partie de bossage - Google Patents

Procédé de moulage de partie de bossage Download PDF

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Publication number
WO2019188769A1
WO2019188769A1 PCT/JP2019/012049 JP2019012049W WO2019188769A1 WO 2019188769 A1 WO2019188769 A1 WO 2019188769A1 JP 2019012049 W JP2019012049 W JP 2019012049W WO 2019188769 A1 WO2019188769 A1 WO 2019188769A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
boss
disk
inner peripheral
corner
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/JP2019/012049
Other languages
English (en)
Japanese (ja)
Inventor
原　豊
祐次 中井
毅彦 安立
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 WO2019188769A1 publication Critical patent/WO2019188769A1/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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/16—Spinning over shaping mandrels or formers
    • 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
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels

Definitions

  • This specification discloses a boss part forming method for forming a boss part on the inner peripheral part of a disk part of a work having a disk part by flow forming.
  • a cylindrical boss is formed on the inner periphery of the workpiece by sharpening the corner of the roller and cleaving the material on the outer periphery of the workpiece surface toward the inner periphery with the corner of the roller.
  • Patent Document 2 has also been proposed (see, for example, Patent Document 2).
  • the main object of the boss part forming method of the present disclosure is to provide a method capable of forming a tall boss part on the inner peripheral part of a disk part of a workpiece by a simple method using flow forming.
  • the boss portion forming method of the present disclosure has taken the following means in order to achieve the main purpose described above.
  • the boss portion forming method of the present disclosure is a boss portion forming method for forming a boss portion extending in a cylindrical shape from an inner peripheral portion of the disc portion on a work having an annular disc portion by flow forming using a roller.
  • the roller is formed in an arc shape with a corner having a radius of curvature equal to or greater than the original thickness of the disk portion, and is formed so that an angle formed by two surfaces connected to the corner is less than 90 °.
  • the workpiece is fixed to the mandrel, the disk part is rotated together with the mandrel around a rotation axis passing through the center of the disk part, the roller is rotated, and the disk part of the two surfaces of the roller is rotated.
  • the angle formed with respect to the surface of the disk portion of one surface on the surface side is greater than 0 °, and the angle formed with respect to the rotation axis of the other surface on the one surface side is 0 To be more than °
  • the corner portion of the roller is pressed against the outer peripheral side of the surface of the disc portion and ironed from the outer peripheral side toward the inner peripheral side, whereby the inner peripheral portion of the disc portion is directed in the axial direction of the rotating shaft.
  • the gist is to make it rise.
  • a work having an annular disk part is fixed to a mandrel, the disk part is rotated together with the mandrel around a rotation axis passing through the center thereof, the roller is rotated, and the corner part of the roller is rotated to the disk.
  • the boss part is formed by pressing the outer peripheral side of the surface of the part and ironing from the outer peripheral side toward the inner peripheral side so that the inner peripheral part of the disk part is raised in the axial direction of the rotating shaft.
  • the roller used in this boss portion forming method is formed such that the corner portion has an arc shape having a radius of curvature equal to or greater than the original thickness of the disk portion, and the angle formed by the two surfaces connected to the corner portion is less than 90 °.
  • the corner portion of the roller has an angle formed with respect to the surface of the disk portion of one surface of the two surfaces that is larger than 0 ° and the other of the two surfaces. Is pressed against the outer peripheral side of the surface of the disk portion so that the angle formed on one surface side with respect to the rotation axis of the mandrel is 0 ° or more.
  • a high compressive stress is applied to the roller contact portion of the disk portion, and a tensile stress is applied to the back side of the roller contact portion in the moving direction of the roller (the direction from the outer periphery side to the inner periphery side).
  • the inner peripheral part of the disk part can be raised in a cylindrical shape while maintaining the original thickness substantially without tearing the material of the surface of the disk part by the corners of the rollers.
  • the tall boss portion can be formed on the inner peripheral portion of the disk portion of the workpiece by a simple method using flow forming.
  • FIG. 1 is an external perspective view of a workpiece 10. It is an external appearance perspective view of the workpiece
  • molding. 2 is a partial cross-sectional view showing a radial cross section of the workpiece 10.
  • FIG. 1 is a schematic configuration diagram of a flow forming apparatus including a workpiece 10.
  • FIG. It is process drawing which shows an example of a boss
  • 1 is a cross-sectional view of a flow forming apparatus including a workpiece 10. It is explanatory drawing which shows the mode of a boss
  • 8A to 8C are explanatory views showing a state in which the inner peripheral part of the disk part 12 is raised by the boss part shifting process.
  • FIG. 1 is an external perspective view of the work 10
  • FIG. 2 is a partial cross-sectional view showing a radial cross section of the work 10
  • FIG. 3 is an external perspective view of the work 110 after forming a boss part.
  • the workpiece 10 has a cylindrical portion 12 that extends in a cylindrical shape, and extends radially inward from one end of the cylindrical portion 12 via an inclined portion 14 and has a circular center hole 17 at a central position.
  • a disk-shaped disk portion 16 having a disk shape.
  • the workpiece 10 is used, for example, for manufacturing a clutch bubb member that connects two rotating members and releases the connection between the two rotating members.
  • the clutch is supported by a clutch drum fixed to one rotating member, a clutch hub fixed to the other rotating member, and an inner peripheral surface of the clutch drum slidably in the axial direction via a spline.
  • a clutch piston that is slidably fitted in the axial direction via a spline and is movable toward both clutch plates, and defines an engagement side oil chamber together with the clutch drum, and an engagement side oil chamber
  • a cancel plate that defines a cancel oil chamber together with the clutch piston for canceling the generated centrifugal hydraulic pressure, a clutch piston and a cancel plate, Is a multi-plate friction type hydraulic clutch and a return spring disposed between.
  • the clutch bubbling has a spline (tooth shape) on the outer peripheral surface to support the clutch plate, a disk part extending radially inward from one end of the cylindrical part via an inclined part, and an inner periphery of the disk part It is comprised from the boss
  • the manufacture of the clutch hub is performed by bending and pressing a circular thin plate having a circular center hole at the center position and having a thickness of about several millimeters, so that the cylindrical portion 12, the inclined portion 14, and the disc portion 16 are formed.
  • the boss portion 18 (see FIG. 2) is formed, and thereafter, drilling and turning are performed at a necessary portion and heat treatment is performed.
  • the disk portion 16 and the inclined portion 14 are thinner than the cylindrical portion 12 in which splines are provided on the outer peripheral surface to support the clutch plate.
  • the boss portion 18 is formed by using a part of the material of the disk portion 16 by flow forming, the boss portion 18 is formed using a material that has been removed by conventional turning processing. be able to.
  • the flow forming process is performed using a flow forming apparatus illustrated in FIG.
  • the flow forming apparatus is supported so as to be rotatable about a central axis and supports the inner surface of the work 10 so that the center of the disk portion 16 passes through the central axis, and is supported by the mandrel 20.
  • a clamper 28 that clamps the outer peripheral surface of the cylindrical portion 12 of the workpiece 10, and a roller that irons from the outer peripheral side to the inner peripheral side while rotating by pressing the corner portion 32 against the surface of the disk portion 16 of the workpiece 10.
  • FIG. 5 is an explanatory view showing an example of a boss portion forming step.
  • FIG. 6 is a cross-sectional view of the flow forming apparatus including the workpiece 10.
  • the mandrel 20 includes a work support portion 22 that supports the inner surface of the work 10, a column portion 24 that is coaxially connected to the work support portion 22 and is inserted into the center hole 17 of the disk portion 16 of the work 10, Have.
  • the roller 30 has a radius of curvature R that is greater than the thickness d of the corner portion 32 of the disk portion 16 of the workpiece 10 (before the boss portion is aligned), and the end surface 34 and the side surface 36 that are continuous with the corner portion 32. It forms so that angle (theta) which makes a space
  • the corner portion 32 of the roller 30 has an angle ⁇ formed by the end surface 34 with respect to the surface of the disk portion 16 being larger than 0 ° and the side surface 36 on the surface side of the disk portion 16 with respect to the rotation axis of the mandrel 20. It is pressed against the surface of the disk part 16 so that the angle ⁇ is 0 ° or more.
  • FIG. 7 is an explanatory view showing a state of the boss portion shifting process
  • FIGS. 8A to 8C are explanatory views showing a state where the inner peripheral portion of the disk portion 12 is raised by the boss portion shifting process.
  • FIG. 9 is an explanatory view showing a state of the boss portion forming process.
  • the roller 30B has a corner portion 32B having a smaller radius of curvature R ′ than the corner portion 32 of the roller 30, and the two side surfaces 34B and 36B connected to the corner portion 32B.
  • the formed angle ⁇ ′ is formed to be smaller than the angle ⁇ of the roller 30 described above.
  • the corner portion 32 of the roller 30 has an angle ⁇ ′ formed by one side surface 34B on the surface side of the disk portion 16 of the two side surfaces 34B and 36B with respect to the surface of the disk portion 16 being larger than 0 ° and the other side surface 34B.
  • the side surface 36B is pressed against the inner peripheral portion of the disk portion 16 so that an angle ⁇ ′ formed on the side surface 34B side with respect to the central axis of the mandrel 20 is larger than 0 °.
  • the boss portion forming process may be performed using the same roller as the roller 30.
  • the corner portion 32B of the roller 30B is again pressed against the base of the boss portion 18, and the roller 30B is moved in the axial direction toward the tip (opening end) of the boss portion 18 along the outer peripheral surface of the cylindrical portion 24B.
  • the finishing process of the boss part 18 and the tooth forming process for forming a tooth profile on the inner peripheral surface of the boss part 18 are performed (S150).
  • a mandrel 20 ⁇ / b> B illustrated in FIG. 10 is used instead of the mandrel 20 described above.
  • the mandrel 20B has a tooth profile forming portion 25B corresponding to the shape of the tooth profile formed on the inner peripheral surface of the boss portion 18 in the upper part of the outer peripheral surface of the cylindrical portion 24B in the figure.
  • FIG. 11 is an explanatory view showing a state of finishing / tooth forming processing.
  • the corner part 32B of the roller 30B is pressed against the boss part 18 at the same angle as the boss part forming process and moved along the axial direction, and the tip (opening) of the boss part 18 is opened.
  • the boss portion 18 is pressed by the corner portion 32B of the roller 30B against the tooth shape forming portion 25B of the cylindrical portion 24B.
  • the tall boss portion 18 can be accurately formed by forming the boss portion 18 between the cylindrical portion 24 of the mandrel 20 and the roller 30. There may be cases where such accuracy is not required.
  • the mandrel 20 ⁇ / b> C that does not have the cylindrical portion and the two surfaces that are connected to the corner portion 32 ⁇ / b> C that are the same as or more than the roller 30 used for the boss portion-shifting processing (ironing processing).
  • the boss part can be raised in the axial direction while utilizing the rigidity of the boss part using the roller 30C having a large angle between 34C and 36C. As shown in FIGS.
  • the corners 32, 32 ⁇ / b> C of the rollers 30, 30 ⁇ / b> C are such that the end faces 34, 34 ⁇ / b> C of the two surfaces 34, 36, 34 ⁇ / b> C, 36 ⁇ / b> C connected to the corners 32, 32 ⁇ /
  • the angle of the disk portion 16 is such that the angle ⁇ formed with respect to the surface is greater than 0 ° and the angle ⁇ formed between the side surfaces 36 and 36C on the surface side of the disk portion 16 with respect to the rotation axis of the mandrel 20C is 0 ° or more. It is pressed against the inner periphery. Thereby, since a boss
  • the workpiece 110 after forming the boss portion has tooth shapes formed on the outer peripheral surface of the cylindrical portion 12 and the inner peripheral surface of the boss portion 18, respectively.
  • the present invention is not limited to this, and a tooth profile is formed on both the outer peripheral surface of the cylindrical portion 12B and the inner peripheral surface of the boss portion 18B, as shown in the workpiece 110B after forming the boss portion in the modified example of FIG.
  • the tooth profile may be formed only on one of the outer peripheral surface of the cylindrical portion and the inner peripheral surface of the boss portion.
  • the boss part forming method of the present disclosure is applied to the work (10) having the annular disk part (16) by the flow forming using the roller (30) from the inner peripheral part of the disk part (16).
  • a boss portion forming method for forming a boss portion (18) extending in a cylindrical shape wherein the roller (30) has a corner radius (32) with a radius of curvature greater than or equal to the original thickness of the disk portion (16) ( R) and an angle formed by two surfaces (34, 36) connected to the corner portion (32) is less than 90 °, and the workpiece (10) is moved to a mandrel ( 20), the disk portion (16) is rotated together with the mandrel (20) around a rotation axis passing through the center of the disk portion (16), the roller (30) is rotated, and the roller (30 ) Of the two surfaces (34, 3 ) Of the surface (34) on the surface side of the disk portion (16) is larger than 0 ° with respect to the surface of the disk portion (16) and the two surfaces (34, 36)
  • a work having an annular disk part is fixed to a mandrel, the disk part is rotated together with the mandrel around a rotation axis passing through the center thereof, the roller is rotated, and the corner part of the roller is rotated to the disk.
  • the boss part is formed by pressing the outer peripheral side of the surface of the part and ironing from the outer peripheral side toward the inner peripheral side so that the inner peripheral part of the disk part is raised in the axial direction of the rotating shaft.
  • the roller used in this boss portion forming method is formed such that the corner portion has an arc shape having a radius of curvature equal to or greater than the original thickness of the disk portion, and the angle formed by the two surfaces connected to the corner portion is less than 90 °.
  • the corner portion of the roller has an angle formed with respect to the surface of the disk portion of one surface of the two surfaces that is larger than 0 ° and the other of the two surfaces. Is pressed against the outer peripheral side of the surface of the disk portion so that the angle formed on one surface side with respect to the rotation axis of the mandrel is 0 ° or more.
  • a high compressive stress is applied to the roller contact portion of the disk portion, and a tensile stress is applied to the back side of the roller contact portion in the moving direction of the roller (the direction from the outer periphery side to the inner periphery side).
  • the inner peripheral part of the disk part can be raised in a cylindrical shape while maintaining the original thickness substantially without tearing the material of the surface of the disk part by the corners of the rollers.
  • the tall boss portion can be formed on the inner peripheral portion of the disk portion of the workpiece by a simple method using flow forming.
  • the angle formed by one surface (34, 34C) on the surface side of (16) with respect to the surface of the disk portion (16) is larger than 0 °, and the two surfaces (34, 34C, 36, 36C) Of these, the corner portion (32) of the roller (30, 30C) so that an angle formed on the one surface (34, 34C) side with respect to the rotation axis of the other surface (36, 36C) is 0 ° or more.
  • 32C) of the disk part (16) It is good also as what shape
  • hub part can be erected from the inner peripheral part of a disk part using the rigidity of a boss
  • the boss portion since the boss portion is not ironed, the load on the mandrel and the roller can be reduced, and the life can be improved.
  • the said mandrel (20) has a cylindrical part (24) penetrated by the circular center hole (17) formed in the center position of the said disk part (16).
  • the angle formed by two surfaces (34B, 36B) connected to the same roller or corner part (32B) as the roller (20) is Using the roller (30B) smaller than the same roller, of the two surfaces (34B, 36B) of the roller (30B), the surface (34B) on one surface (34B) on the surface side of the disk portion (16)
  • One surface (34B) with respect to the rotation axis of the other surface (36B) of the two surfaces (34B, 36B) having an angle greater than 0 ° with respect to the surface of the disk portion (16)
  • the angle to the side is greater than 0 °
  • the corner (32B) of the roller (30B) is pressed against the inner peripheral portion of the disk (16) and ironed along the rotation
  • work (10) contains the cylindrical part (12) and the said disk part (16) extended in the radial inside from the one end side of this cylindrical part,
  • the boss is extended to the inner peripheral portion of the disc portion (16) in a cylindrical shape on the opposite side to the cylindrical portion.
  • the cylindrical portion may have a tooth shape on the outer peripheral surface.
  • work can be clamped more firmly by making a clamp position into the outer peripheral surface of a cylindrical part.
  • the mandrel has a columnar portion inserted into the raised portion or the boss portion, and the columnar portion has a tooth form forming portion on an outer peripheral surface, and the raised portion.
  • this indication is not limited to such embodiment at all, and of course, it can implement with various forms within the range which does not deviate from the gist of this indication. is there.
  • the present disclosure can be used in the manufacturing industry of the boss part forming method.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

Une pièce à travailler ayant une partie de disque annulaire (16) est fixée à un mandrin, la partie de disque (16) est mise en rotation conjointement avec le mandrin autour d'un arbre rotatif passant à travers le centre de la partie de disque (16), et un rouleau est mis en rotation, un coin (32) du rouleau est pressé contre le côté circonférentiel externe d'une surface de la partie de disque (16), et le repassage est effectué depuis le côté circonférentiel externe vers le côté circonférentiel interne, tandis que la partie circonférentielle interne de la partie de disque (16) est surélevée dans la direction axiale de l'arbre rotatif. Le rouleau est formé sous une forme d'arc ayant un rayon de courbure égal ou supérieur à l'épaisseur d'origine de la partie de disque (16), et est formé de telle sorte que l'angle formé par deux surfaces continues avec le coin (32) est inférieur à 90°. Pendant le repassage, le coin (32) du rouleau est pressé contre le côté circonférentiel externe de la surface de la partie de disque (16) de telle sorte que l'angle formé avec la surface de la partie de disque (16) par une surface sur un côté de surface de la partie de disque (16) parmi les deux surfaces est supérieure à 0°, et l'angle formé sur le côté de surface avec l'arbre rotatif par l'autre surface parmi les deux surfaces est d'au moins 0°.
PCT/JP2019/012049 2018-03-28 2019-03-22 Procédé de moulage de partie de bossage Ceased WO2019188769A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-061816 2018-03-28
JP2018061816A JP2019171414A (ja) 2018-03-28 2018-03-28 ボス部成形方法

Publications (1)

Publication Number Publication Date
WO2019188769A1 true WO2019188769A1 (fr) 2019-10-03

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09506295A (ja) * 1993-12-09 1997-06-24 ヴェーエフ・マシーネンバウ ウント ブレッヒフォルムテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト ハブを有する伝動装置部材のハブを切削によらずに製造する方法
JPH10216892A (ja) * 1997-02-07 1998-08-18 Kubota Tekkosho:Kk 段状回転体の製造方法
JPH11169985A (ja) * 1997-12-04 1999-06-29 Mazda Motor Corp 歯付円筒部品の成形方法
JP2001334335A (ja) * 2000-03-14 2001-12-04 Nissan Motor Co Ltd 塑性加工方法
JP2003522645A (ja) * 2000-02-15 2003-07-29 ヴェーエフ−マシーネンバウ ウント ブレッヒフォルムテヒニック ゲーエムベーハー ウント ツェーオー コマンディットゲゼルシャフト ハブを備えた部材及びその非切断製造方法
JP2007511370A (ja) * 2003-11-17 2007-05-10 ヴェーエフ−マシーネンバウ ウント ブレッヒフォルムテヒニック ゲーエムベーハー ウント ツェーオー コマンディットゲゼルシャフト メタルブランク上にフランジを製造するための方法およびトランズミッション部品

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09506295A (ja) * 1993-12-09 1997-06-24 ヴェーエフ・マシーネンバウ ウント ブレッヒフォルムテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト ハブを有する伝動装置部材のハブを切削によらずに製造する方法
JPH10216892A (ja) * 1997-02-07 1998-08-18 Kubota Tekkosho:Kk 段状回転体の製造方法
JPH11169985A (ja) * 1997-12-04 1999-06-29 Mazda Motor Corp 歯付円筒部品の成形方法
JP2003522645A (ja) * 2000-02-15 2003-07-29 ヴェーエフ−マシーネンバウ ウント ブレッヒフォルムテヒニック ゲーエムベーハー ウント ツェーオー コマンディットゲゼルシャフト ハブを備えた部材及びその非切断製造方法
JP2001334335A (ja) * 2000-03-14 2001-12-04 Nissan Motor Co Ltd 塑性加工方法
JP2007511370A (ja) * 2003-11-17 2007-05-10 ヴェーエフ−マシーネンバウ ウント ブレッヒフォルムテヒニック ゲーエムベーハー ウント ツェーオー コマンディットゲゼルシャフト メタルブランク上にフランジを製造するための方法およびトランズミッション部品

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