JPH10286646A - Manufacture of fly wheel - Google Patents
Manufacture of fly wheelInfo
- Publication number
- JPH10286646A JPH10286646A JP9707797A JP9707797A JPH10286646A JP H10286646 A JPH10286646 A JP H10286646A JP 9707797 A JP9707797 A JP 9707797A JP 9707797 A JP9707797 A JP 9707797A JP H10286646 A JPH10286646 A JP H10286646A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- forming
- blank
- flywheel
- thickness
- 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 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008719 thickening Effects 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 39
- 238000000465 moulding Methods 0.000 claims description 12
- 239000007858 starting material Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 238000003466 welding Methods 0.000 abstract description 6
- 238000009987 spinning Methods 0.000 abstract description 2
- 238000004080 punching Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 102220033831 rs145989498 Human genes 0.000 description 1
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、エンジンの回転軸
に取り付けるフライホィールで、特に外周部にスタータ
用の歯車を有し、軸心部周囲の円板部にクラッチ板当接
面を有するフライホィールの製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flywheel to be mounted on a rotating shaft of an engine, and more particularly to a flywheel having a starter gear on the outer periphery and a clutch plate abutting surface on a disk around the shaft center. The present invention relates to a wheel manufacturing method.
【０００２】[0002]
【従来の技術】この種のフライホィールは、断面形状が
角状になっている棒状の鋼材（Ｓ４８Ｃ相当）を、リン
グ状に成形して、その両端をフラッシュパット溶接等に
て結合してからこれの外周に歯車を切削加工して図１
（ａ），（ｂ）に示すような環状素材ａを作り、この環
状素材ａを、図２に示すように、鋳物（ＦＣ２５相当）
にて構成すると共に、これの必要部分に機械加工して形
成してなるプレート素材ｂに焼ばめにて嵌合結合し、あ
るいは嵌合後溶接結合して製造されている。また、歯車
部分は局部的に強度を必要とするので高周波焼入れを行
っている。2. Description of the Related Art A flywheel of this type is formed by forming a rod-shaped steel material (equivalent to S48C) having a square cross section into a ring shape, and joining both ends thereof by flash pad welding or the like. Fig. 1
An annular raw material a as shown in FIGS. 2A and 2B is prepared, and this annular raw material a is cast as shown in FIG.
, And is fitted and connected by shrink fitting to a plate material b formed by machining a necessary portion thereof, or by welding after fitting. In addition, since the gear portion locally requires strength, induction hardening is performed.
【０００３】[0003]
【発明が解決しようとする課題】上記従来のフライホィ
ールの製造方法では、鋼材からなる環状素材ａと鋳物か
らなるプレート素材ｂからなるため、機械加工が多く、
製造コストが高くなり、また、焼ばめや溶接加工により
変形するため、全面振れ検知歪修正を行う必要があっ
た。In the above-mentioned conventional method of manufacturing a flywheel, since it is composed of an annular material a made of steel and a plate material b made of a casting, a lot of machining is required.
Since the manufacturing cost is increased and the shape is deformed by shrink fitting or welding, it is necessary to correct the whole-shake detection distortion.
【０００４】本発明は上記のことにかんがみなされたも
ので、複数工程のプレス加工と複数工程の増肉変形成形
加工を行い、ボス部と外周部が他の部分と同等か同等以
上の肉厚になり、この外周部に歯車を設けてなるフライ
ホィールを、薄板鋼板にて一体状に成形でき、溶接工程
等の後加工を必要とすることなく、安価で、かつ優れた
品質で製造できるフライホィールの製造方法を提供する
ことを目的とするものである。The present invention has been made in view of the above, and has been made by performing a plurality of steps of press working and a plurality of steps of wall-thickening deformation forming, so that a boss portion and an outer peripheral portion have a thickness equal to or greater than other portions. The flywheel, which is provided with gears on the outer periphery, can be integrally formed from a thin steel plate, and can be manufactured at low cost and with excellent quality without the need for post-processing such as a welding process. It is an object of the present invention to provide a method of manufacturing a wheel.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係るフライホィールの製造方法は、円板状
の素材の中心部に塑性加工によりボス部を増肉成形し、
外周部を外側から半径方向に成形ローラにて押圧変形し
て歯車用のブランク部を一体状に増肉成形し、この歯車
用ブランク部に歯車を成形するようにした。In order to achieve the above object, a method of manufacturing a flywheel according to the present invention comprises: forming a boss portion in a central portion of a disc-shaped material by plastic working;
The outer peripheral portion was pressed and deformed in the radial direction from the outside by a forming roller to integrally form a blank portion for the gear, and a gear was formed on the blank portion for the gear.
【０００６】また、円板状の素材を、上下方向両側から
上型と下型にて、これの外周部を環状に外方に突出させ
て挾持し、この突出部を外側から半径方向に成形ローラ
にて押圧変形して歯車用のブランク部を一体状に増肉成
形し、この部分に歯車を成形するようにしたフライホィ
ールの製造方法において、素材の増肉変形範囲より内側
部を内側上型と内側下型で挾持し、増肉変形範囲の半径
方向長さの内側部分を外側上型と外側下型を挾持してか
ら、この外側上型と外側下型の外側に突出している部分
を成形ローラにて押圧変形し、ついで、外側上型と外側
下型を開いて、内側上型と内側下型の外側に突出してい
る部分を成形ローラにて押圧変形して歯車用ブランク部
を成形し、この部分に歯車を成形する。[0006] A disc-shaped material is sandwiched between upper and lower dies by vertically projecting the outer peripheral portion of the disc material from both sides in the vertical direction, and the projecting portion is formed radially from the outside. In a method of manufacturing a flywheel in which a gear blank is formed integrally by pressing and deforming with a roller to form a gear blank portion, and a gear is formed in this portion, an inner portion of the material is increased inward from a material thickening deformation range. A part that is clamped between the mold and the inner lower mold, and the inner part of the radial length of the thickness increase deformation region is clamped between the outer upper mold and the outer lower mold, and then the part that protrudes outside the outer upper mold and the outer lower mold Is pressed and deformed by the forming roller, then the outer upper die and the outer lower die are opened, and the portions of the inner upper die and the inner lower die that protrude outward are pressed and deformed by the forming roller to form the gear blank portion. The gear is formed in this part.
【０００７】また、上記フライホィールの製造方法にお
いて、歯車用ブランク部を、素材の円板部の厚み方向
に、スタータ歯車の挿入方向上流側部分が他側に比べて
少なくなるように偏肉させた。In the above-mentioned method of manufacturing a flywheel, the blank portion for the gear is deflected in the thickness direction of the disk portion of the material so that the upstream portion in the insertion direction of the starter gear is smaller than the other side. Was.
【０００８】さらに、上記各フライホィールの製造方法
において、円板状素材に、重量％で、Ｃ：０．２〜０．
６％、Ｓｉ：０．０１〜０．１％、Ｍｎ：０．０５〜
０．５％、Ｔｉ：０．００１〜０．０１％、Ｂ：０．０
０１〜０．０１％、残りＦｅの鋼板を用いた。Further, in each of the above flywheel manufacturing methods, C: 0.2 to 0.
6%, Si: 0.01-0.1%, Mn: 0.05-
0.5%, Ti: 0.001 to 0.01%, B: 0.0
A steel sheet of 01 to 0.01%, with the balance being Fe, was used.
【０００９】[0009]
【作 用】１枚の円板状の素材からボス部と歯車用ブ
ランク部が塑性変形により増肉成形される。そして、歯
車用ブランク部は２段階に増肉成形される。[Operation] The boss portion and the gear blank portion are formed from one disk-shaped material by plastic deformation to increase the thickness. Then, the gear blank portion is formed into a thickened shape in two stages.
【００１０】[0010]
【発明の実施の形態】本発明の実施の形態を図３以下に
基づいて説明する。まず、板厚が２〜４ｍｍの鋼板を円
形に打抜き成形した円板素材１の中心にピアッシング工
程にて小孔２を設ける。ついで、この円板素材１を図５
（ａ）に示すように上下の押え金型３ａ，３ｂにて挾持
して上記小孔２にバーリング工程にて小孔２より大径の
バー４を押し込んで図５（ｂ）に示すように小孔２の縁
部を軸方向の一方側へ折り曲げ突出して環状部５を設け
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. First, a small hole 2 is provided in the center of a disk material 1 obtained by stamping and forming a steel plate having a thickness of 2 to 4 mm into a circle in a piercing step. Next, this disk material 1 is shown in FIG.
As shown in FIG. 5A, a bar 4 having a larger diameter than the small hole 2 is pushed into the small hole 2 in the burring process by being clamped by upper and lower presser dies 3a and 3b as shown in FIG. An annular portion 5 is provided by bending the edge of the small hole 2 toward one side in the axial direction and projecting.
【００１１】その後、図６（ａ）に示すように、上下の
成形金型６ａ，６ｂにて上記環状部５を座屈させて増肉
して図６（ｂ）に示すように上記小孔２を設けた位置に
ボス部７を成形する。以後の成形工程では、このボス部
７が基準となる。Then, as shown in FIG. 6 (a), the annular portion 5 is buckled by the upper and lower molding dies 6a, 6b to increase the wall thickness, and as shown in FIG. The boss portion 7 is formed at the position where 2 is provided. In the subsequent molding process, the boss 7 serves as a reference.
【００１２】ついで、このボス部７を設けた円板素材１
を図７に示すプレス工程にて上下の成形金型８ａ，８ｂ
及びボス部７に嵌合する位置決めピン９を用い、ボス部
７の周囲の裏側にクラッチ板当接面１０を皿状に形成し
て、図８に示すような皿状素材１′を得る。なお、この
クラッチ板当接面１０を形成するための皿状部の深さは
必要に応じて適宜とられるもので、最も浅い場合には、
他の部分を同一平面状にしたものもある。Next, the disk blank 1 provided with the boss 7 is provided.
Are pressed in the pressing step shown in FIG.
Then, a clutch plate contact surface 10 is formed in a dish shape on the back side around the boss portion 7 by using a positioning pin 9 fitted to the boss portion 7 to obtain a dish-shaped material 1 'as shown in FIG. The depth of the dish-shaped portion for forming the clutch plate contact surface 10 is appropriately determined as needed.
Other parts have the same plane shape.
【００１３】この皿状素材１′の外周部を図９から図１
３に示したスピニング工程にて増肉する。まず、図９に
示すように、上型１１と下型１２及び位置決めピン９に
て皿状素材１′を調心した状態で挾持する。このときの
上下の各型１１，１２は２重金型になっていて、増肉し
ない円板部分を挾持する円柱状の内側上型１１ａ、内側
下型１２ａと、この各型の外側に摺動可能に嵌合した円
筒状の外側上型１１ｂ、外側下型１２ｂとからなってい
る。この外側上型１１ｂと外側下型１２ｂの肉厚ｔは、
皿状素材１′の外周部の増肉変形範囲Ｌの１／２〜１／
３の寸法になっている。従って、上型１１と下型１２に
て挾持された皿状素材１′の外周部は増肉変形範囲Ｌの
うち、Ｌ／２〜２Ｌ／３だけ半径方向に突出されてい
る。The outer peripheral portion of the dish-shaped material 1 'is shown in FIGS.
In the spinning process shown in FIG. First, as shown in FIG. 9, the upper and lower dies 11, 12 and the positioning pins 9 clamp the dish-shaped material 1 'in an aligned state. At this time, each of the upper and lower dies 11 and 12 is a double mold, and has a cylindrical inner upper die 11a and an inner lower die 12a for holding a disk portion which does not increase in thickness, and slides outward of each of these dies. It is composed of a cylindrical outer upper mold 11b and an outer lower mold 12b fitted as possible. The thickness t of the outer upper mold 11b and the outer lower mold 12b is
1/2 to 1 / of the thickness increase deformation range L of the outer periphery of the dish-shaped material 1 '
3 dimensions. Therefore, the outer peripheral portion of the dish-shaped material 1 ′ sandwiched between the upper mold 11 and the lower mold 12 is projected in the radial direction by L / 2 to 2L / 3 in the thickness increasing deformation range L.
【００１４】ついで、図１０に示すように、外周にＶ字
状の成形型１３ａを設けた第１成形ローラ１３にて上記
突出部を外側から半径方向に押圧してこの部分を断面形
状がＶ字山形状になように増肉成形する。このときの第
１成形ローラ１３の成形型１３ａの大きさは、上記第２
の上，下の型１１ｂ，１２ｂより突出している部分の容
積に相当する大きさになっている。このときの増肉成形
は、第２の上，下の型１１ｂ，１２ｂの外側、すなわ
ち、増肉変形範囲Ｌの１／２〜２／３の範囲で行われ
る。Next, as shown in FIG. 10, the protrusion is pressed in the radial direction from the outside by a first forming roller 13 provided with a V-shaped forming die 13a on the outer periphery, and this portion has a V-shaped section. The thickness is increased to form a mountain shape. At this time, the size of the molding die 13a of the first molding roller 13 is the same as that of the second molding roller 13.
Has a size corresponding to the volume of a portion protruding from the upper and lower dies 11b and 12b. The thickening at this time is performed outside the second upper and lower dies 11b and 12b, that is, in a range of 1/2 to 2/3 of the thickening deformation range L.
【００１５】ついで、図１１に示すように、第２上型１
１ｂと第２下型１２ｂを開動作して離間させ、増肉変形
範囲の残りの部分（Ｌ／２〜Ｌ／３）をも第１上型１１
ａと第１下型１２ａの外側に突出させる。この状態で、
外周にＶ字状の成形型１４ａを設けた第２成形ローラ１
４にて上記突出部を外側から半径方向に押圧してこの部
分を断面形状がＶ字山形状になるように増肉成形する。
このときの第２成形ローラ１４の成形型１４ａの大きさ
は、上記第１の上，下の型１１ａ，１２ａより突出して
いる部分の容積に相当する大きさになっている。このと
きの増肉成形は増肉変形範囲Ｌ全体の部分で行われる。[0015] Next, as shown in FIG.
1b and the second lower mold 12b are opened to separate them, and the remaining portion (L / 2 to L / 3) of the wall thickness deformation range is also moved to the first upper mold 11.
a and the outside of the first lower mold 12a. In this state,
Second forming roller 1 provided with V-shaped forming die 14a on the outer periphery
At 4, the protrusion is pressed in the radial direction from the outside, and this portion is thickened so that the cross-sectional shape becomes a V-shaped mountain shape.
At this time, the size of the forming die 14a of the second forming roller 14 has a size corresponding to the volume of the portion projecting from the first upper and lower dies 11a and 12a. The thickening molding at this time is performed in the entire portion of the thickening deformation range L.
【００１６】さらに、図１２に示すように、上記第２の
上，下の型１１ｂ，１２ｂが開いている状態で外周に半
円弧状の成形型１５ａを設けた第３成形ローラ１５を用
いて増肉変形部分を断面形状が半円形になるように成形
し、図１３に示すように、さらに、外周に略四角状の成
形型１６ａを設けた第４成形ローラ１６を用いて増肉変
形部分を断面形状が略四角状になるように成形して歯車
用ブランク部１７を得る。Further, as shown in FIG. 12, a third forming roller 15 having a semi-circular forming die 15a provided on the outer periphery in a state where the second upper and lower dies 11b and 12b are open is used. The thickened deformed portion is formed so as to have a semicircular cross-sectional shape, and further, as shown in FIG. 13, a fourth shaped roller 16 provided with a substantially square forming die 16a on the outer periphery is used. Is formed so as to have a substantially square cross section to obtain a gear blank 17.
【００１７】このときの図１４に示すように、歯車用ブ
ランク部１７は皿状素材１′の円板部に対して厚さ方向
に偏心されていて、これの幅をＷとしたときに、皿状素
材１′の円板部の中心に対してＷ1 ，Ｗ2 でＷ1 ＞
Ｗ2 、すなわち、Ｗ1 ＝２Ｗ／３、Ｗ２＝Ｗ／３となっ
ている。そしてこの偏心配分は、フライホィールに対し
てスタート時にスタータ歯車が入り込む側が少なくなっ
ている。As shown in FIG. 14 at this time, the gear blank portion 17 is eccentric in the thickness direction with respect to the disk portion of the dish-shaped material 1 ′. W 1 relative to the center of the disc portion of the plate-like material 1 ', W 2 in W 1>
W 2 , that is, W 1 = 2W / 3 and W2 = W / 3. The part of the worries that the starter gear enters the flywheel at the time of start is reduced.
【００１８】次に、図１５に示すように、この皿状素材
１′を第１の上，下の型１１ａ，１２ａにて挾着した状
態で上記歯車ブランク部１７の外周側から歯形成形ロー
ラ１８を押圧してこれの外周面に歯車１９を冷間、成形
または温間塑性加工により転造成形にて成形する。Next, as shown in FIG. 15, the tooth forming roller 1 is sandwiched between the first upper and lower dies 11a and 12a from the outer peripheral side of the gear blank 17 as shown in FIG. The gear 18 is pressed to form a gear 19 on the outer peripheral surface thereof by cold, forming or warm plastic working by roll forming.
【００１９】このときの歯形成形ローラ１８は荒成形用
と仕上げ成形用と分けて用いる。図１６（ａ）は荒成形
用の歯形成形ローラ１８ａを、また図１６（ｂ）はこれ
によって成形された荒成形歯車１９ａを示す。そして図
１７（ａ）は仕上げ用の歯形成形ローラ１８ｂを、また
図１７（ｂ）はこれによって成形された仕上げ成形歯車
１９ｂを示す。At this time, the tooth forming roller 18 is used separately for rough forming and finish forming. FIG. 16A shows a tooth forming roller 18a for rough forming, and FIG. 16B shows a rough forming gear 19a formed by this. FIG. 17 (a) shows a tooth forming roller 18b for finishing, and FIG. 17 (b) shows a finished forming gear 19b formed by this.
【００２０】上記歯車用ブランク部１７への歯形成形
は、上記した転造成形によることなく、通常の歯切り盤
を用いた機械加工にて行ってもよい。The tooth formation on the gear blank 17 may be performed by machining using a normal gear cutting machine, instead of the above-described rolling.
【００２１】また、上記実施の形態における素材となる
鋼板は、重量％で、Ｃ：０．２〜０．６％、Ｓｉ：０．
０１〜０．１％、Ｍｎ：０．０５〜０．５％、Ｔｉ：
０．００１〜０．０１％、Ｂ：０．００１〜０．０１
％、残りＦｅの組成の材料を用いた。このような材質で
あることにより、この鋼板は塑性加工性がよく、また、
焼入れ深度及び焼入れ硬度において優れた焼入れ性を有
している。そして、この組成において、Ｓｉが極端に低
いことにより、マトリックス（基地）の強度が低くな
り、伸び、靭性が向上されている。Ｍｎは通常の鉄鋼の
添加量である。ＴｉはＣを固定すると共に、脱酸を促進
し、結果的に伸びのよい特性をもたらす。ＢはＣの低い
鋼で塑性加工を良くし、後工程の焼入れ性を確保するた
め少量添加している。In the above embodiment, the steel sheet used as the raw material is 0.2% to 0.6% by weight of C and 0.2% by weight of Si.
01-0.1%, Mn: 0.05-0.5%, Ti:
0.001 to 0.01%, B: 0.001 to 0.01
%, The material having the composition of the remaining Fe was used. By such a material, this steel sheet has good plastic workability,
It has excellent hardenability in hardening depth and hardening hardness. And in this composition, since the Si is extremely low, the strength of the matrix (base) is lowered, and the elongation and the toughness are improved. Mn is the amount of ordinary steel added. Ti fixes C and promotes deoxidation, resulting in good elongation properties. B is a steel with a low C, which improves the plastic working, and is added in a small amount in order to secure the hardenability in the post-process.
【００２２】[0022]
【発明の効果】上記構成において、請求項１記載の発明
によれば、１枚の円板状の素材から、溶接工程等の後加
工を必要とすることなく、安価で、かつ優れた品質でフ
ライホィールを製造することができる。According to the above construction, according to the first aspect of the present invention, a single disk-shaped material is inexpensive and has excellent quality without requiring post-processing such as a welding process. Flywheels can be manufactured.
【００２３】また、請求項２記載の発明によれば、円板
の外周部を外側から半径方向に押圧しての増肉変形成形
による歯車用ブランク部の成形が２段階に行われ、この
部分の増肉変形が冷間、または温間塑性変形により割れ
が生じることなく成形することができる。According to the second aspect of the present invention, the blank portion for the gear is formed in two stages by the thickness-increasing deformation forming by pressing the outer peripheral portion of the disk in the radial direction from the outside. Can be formed without causing cracking due to cold or warm plastic deformation.
【００２４】そして、請求項３記載の発明によれば、上
記歯車用ブランク部が素材の円板部の厚み方向にスター
タ歯車の挿入方向上流側部分が他側に比べて少なくなる
ように偏肉されていることにより、スタータ歯車の挿入
方向の強度が大きくなり、この部分に歯車を成形してフ
ライホィールとしたときに、スタータ歯車が挿入する始
動時におけるフライホィールの歯車の振動の発生を防ぐ
ことができる。According to the third aspect of the present invention, the thickness of the blank portion for the gear is uneven in the thickness direction of the disk portion of the material so that the upstream portion in the insertion direction of the starter gear is smaller than the other side. As a result, the strength of the starter gear in the insertion direction increases, and when the gear is formed into a flywheel to form a flywheel, the occurrence of vibration of the gear of the flywheel at the time of starting when the starter gear is inserted is prevented. be able to.
【００２５】さらに、請求項４記載のフライホィールの
製造方法では、Ｓｉの含有が極端に少ないことより、伸
び及び靱性が向上され、Ｔｉの含有はＣを固定すると共
に、脱酸が促進されて、伸びのよい特性がもたらせられ
る。Ｂの含有によりＣの低い鋼で塑性加工性がよくな
り、後工程の焼入れ性が確保される。Furthermore, in the method for producing a flywheel according to the fourth aspect, since the content of Si is extremely small, the elongation and the toughness are improved, and the content of Ti fixes C and promotes deoxidation. , Good elongation characteristics. Due to the inclusion of B, plastic workability is improved with steel having a low C, and hardenability in a subsequent process is ensured.
【図１】（ａ）従来のフライホィールの製造方法におけ
る構成部材の１つである環状素材を一部部破して断面形
状を示した平面図、（ｂ）はその断面図である。FIG. 1A is a plan view showing a cross-sectional shape of a part of an annular material, which is one of the constituent members in a conventional flywheel manufacturing method, to show a cross-sectional shape, and FIG. 1B is a cross-sectional view thereof.
【図２】従来のフライホィールの製造方法により製造さ
れたフライホィールを示す断面図である。FIG. 2 is a cross-sectional view showing a flywheel manufactured by a conventional flywheel manufacturing method.
【図３】本発明に係るフライホィールの製造方法に用い
る円板素材を示す平面図である。FIG. 3 is a plan view showing a disk material used in the method of manufacturing a flywheel according to the present invention.
【図４】円板素材に小孔を設けた状態の断面図である。FIG. 4 is a sectional view showing a state in which a small hole is provided in a disk material.
【図５】（ａ）はバーリング工程を示す作用説明図であ
る。（ｂ）はバーリングされた状態の断面図である。FIG. 5A is an operation explanatory view showing a burring step. (B) is a sectional view of a burring state.
【図６】（ａ）はボス部の増肉加工状態を示す作用説明
図である。（ｂ）は増肉成形したボス部を示す断面図で
ある。FIG. 6 (a) is an operation explanatory view showing a state in which a boss portion is being thickened. (B) is sectional drawing which shows the boss | hub part which carried out thickening molding.
【図７】クラッチ板当接面をプレス成形する状態の作用
説明図である。FIG. 7 is an operation explanatory view in a state where a clutch plate contact surface is press-formed.
【図８】クラッチ板当接面をプレス成形する状態の素材
を示す斜視図である。FIG. 8 is a perspective view showing a material in a state where a clutch plate contact surface is press-formed.
【図９】歯車用ブランク部を成形する状態の作用説明図
である。FIG. 9 is an operation explanatory view of a state in which a gear blank portion is formed.
【図１０】歯車用ブランク部を成形する状態の作用説明
図である。FIG. 10 is an operation explanatory view of a state in which a gear blank portion is formed.
【図１１】歯車用ブランク部を成形する状態の作用説明
図である。FIG. 11 is an operation explanatory view of a state in which a gear blank portion is formed.
【図１２】歯車用ブランク部を成形する状態の作用説明
図である。FIG. 12 is an operation explanatory view of a state in which a gear blank portion is formed.
【図１３】歯車用ブランク部を成形する状態の作用説明
図である。FIG. 13 is an operation explanatory view of a state in which a gear blank portion is formed.
【図１４】歯車用ブランク部の形状を示す断面図であ
る。FIG. 14 is a sectional view showing the shape of a gear blank.
【図１５】歯車用ブランク部に歯車を塑性成形する状態
を示す作用説明図である。FIG. 15 is an operation explanatory view showing a state where a gear is plastically formed on a gear blank portion.
【図１６】（ａ）は荒成形用の歯形成形ローラを示す斜
視図である。（ｂ）は荒成形された歯車を示す平面図で
ある。FIG. 16A is a perspective view showing a tooth forming roller for rough molding. (B) is a plan view showing a gear that is roughly formed.
【図１７】（ａ）は仕上げ用の歯形成形ローラを示す斜
視図である。（ｂ）は仕上げ成形された歯車を示す平面
図である。FIG. 17A is a perspective view showing a tooth forming roller for finishing. (B) is a top view showing the gear which was finish-formed.
ａ…環状素材、ｂ…プレート素材、１…円板素材、１′
…皿状素材、２…小孔、３ａ，３ｂ…押え金型、４…バ
ー、５…環状部、６ａ，６ｂ…成形金型、７…ボス部、
８ａ，８ｂ…成形金型、９…位置決めピン、１０…クラ
ッチ板当接面、１１…上型、１１ａ…内側上型、１１ｂ
…外側上型、１２…下型、１２ａ…内側下型、１２ｂ…
外側下型、１３，１４，１５，１６…成形ローラ、１３
ａ，１４ａ，１５ａ，１６ａ…成形型、１７…歯車用ブ
ランク部、１８，１８ａ，１８ｂ…歯形成形ローラ、１
９，１９ａ，１９ｂ…歯車。a: annular material, b: plate material, 1 ... disk material, 1 '
... Dish-shaped material, 2 ... Small hole, 3a, 3b ... Pressing die, 4 ... Bar, 5 ... Circular part, 6a, 6b ... Molding die, 7 ... Boss part,
8a, 8b: molding die, 9: positioning pin, 10: clutch plate contact surface, 11: upper die, 11a: inner upper die, 11b
... Outer upper mold, 12 ... Lower mold, 12a ... Inner lower mold, 12b ...
Outer lower mold, 13, 14, 15, 16 ... forming roller, 13
a, 14a, 15a, 16a: molding die, 17: gear blank portion, 18, 18a, 18b: tooth forming roller, 1
9, 19a, 19b ... gears.
Claims (4)
ボス部を増肉成形し、外周部を外側から半径方向に成形
ローラにて押圧変形して歯車用のブランク部を一体状に
増肉成形し、この歯車用ブランク部に歯車を成形するこ
とを特徴とするフライホィールの製造方法。1. A boss portion is formed in a central portion of a disc-shaped material by plastic working to increase the wall thickness, and the outer peripheral portion is pressed and deformed from outside by a forming roller to form a gear blank portion integrally. A method for manufacturing a flywheel, characterized by forming a thickening and forming a gear on the gear blank.
と下型にて、これの外周部を環状に外方に突出させて挾
持し、この突出部を外側から半径方向に成形ローラにて
押圧変形して歯車用のブランク部を一体状に増肉成形
し、この部分に歯車を成形するようにしたフライホィー
ルの製造方法において、素材の増肉変形範囲より内側部
を内側上型と内側下型で挾持し、増肉変形範囲の半径方
向長さの内側部分を外側上型と外側下型を挾持してか
ら、この外側上型と外側下型の外側に突出している部分
を成形ローラにて押圧変形し、ついで、外側上型と外側
下型を開いて、内側上型と内側下型の外側に突出してい
る部分を成形ローラにて押圧変形して歯車用ブランク部
を成形し、この部分に歯車を成形することを特徴とする
フライホィールの製造方法。2. A disk-shaped material is sandwiched between upper and lower dies by vertically projecting an outer peripheral portion of the disc material from both sides in the vertical direction and forming the projected portion in the radial direction from the outside. In a method of manufacturing a flywheel in which a gear blank is formed integrally by pressing and deforming with a roller to form a gear blank portion, and a gear is formed in this portion, an inner portion of the material is increased inward from a material thickening deformation range. A part that is clamped between the mold and the inner lower mold, and the inner part of the radial length of the thickness increase deformation region is clamped between the outer upper mold and the outer lower mold, and then the part that protrudes outside the outer upper mold and the outer lower mold Is pressed and deformed by the forming roller, then the outer upper die and the outer lower die are opened, and the portions of the inner upper die and the inner lower die that protrude outward are pressed and deformed by the forming roller to form the gear blank portion. Molding and forming a gear in this part Law.
法において、歯車用ブランク部を、素材の円板部の厚み
方向に、スタータ歯車の挿入方向上流側部分が他側に比
べて少なくなるように偏肉させたことを特徴とするフラ
イホィールの製造方法。3. The method of manufacturing a flywheel according to claim 2, wherein the gear blank is formed such that an upstream portion of the starter gear in the thickness direction of the disk portion of the material in the insertion direction is smaller than the other portion. A method for producing a flywheel, wherein the thickness of the flywheel is varied.
ールの製造方法において、円板状素材に、重量％で、
Ｃ：０．２〜０．６％、Ｓｉ：０．０１〜０．１％、Ｍ
ｎ：０．０５〜０．５％、Ｔｉ：０．００１〜０．０１
％、Ｂ：０．００１〜０．０１％、残りＦｅの鋼板を用
いたことを特徴とするフライホィールの製造方法。4. The method for producing a flywheel according to claim 1, wherein the weight of the disc-shaped material is
C: 0.2-0.6%, Si: 0.01-0.1%, M
n: 0.05-0.5%, Ti: 0.001-0.01
%, B: 0.001 to 0.01%, with the balance being Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9707797A JP3000346B2 (en) | 1997-04-15 | 1997-04-15 | Manufacturing method of flywheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9707797A JP3000346B2 (en) | 1997-04-15 | 1997-04-15 | Manufacturing method of flywheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10286646A true JPH10286646A (en) | 1998-10-27 |
| JP3000346B2 JP3000346B2 (en) | 2000-01-17 |
Family
ID=14182589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9707797A Expired - Fee Related JP3000346B2 (en) | 1997-04-15 | 1997-04-15 | Manufacturing method of flywheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3000346B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001012957A1 (en) * | 1999-08-18 | 2001-02-22 | Koyo Seiko Co., Ltd. | Rocker arm and method of manufacturing rocker arm body |
| JP2010137265A (en) * | 2008-12-12 | 2010-06-24 | Nippon Spindle Mfg Co Ltd | Plastic processing device and plastic processing method |
| CN102672039A (en) * | 2012-05-22 | 2012-09-19 | 东风襄阳旋压技术有限公司 | Rotary pressing tooling for manufacturing asymmetric T-shaped rotary pressing belt wheels |
| CN103447369A (en) * | 2013-09-23 | 2013-12-18 | 合肥晟泰克旋压科技有限公司 | Spinning manufacturing process of large-diameter superwide spinning belt wheel |
| JP2014012287A (en) * | 2012-07-04 | 2014-01-23 | Sunstar Engineering Inc | Method for manufacturing gear |
| JP2014077498A (en) * | 2012-10-11 | 2014-05-01 | Exedy Corp | Torque converter |
-
1997
- 1997-04-15 JP JP9707797A patent/JP3000346B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001012957A1 (en) * | 1999-08-18 | 2001-02-22 | Koyo Seiko Co., Ltd. | Rocker arm and method of manufacturing rocker arm body |
| JP2010137265A (en) * | 2008-12-12 | 2010-06-24 | Nippon Spindle Mfg Co Ltd | Plastic processing device and plastic processing method |
| CN102672039A (en) * | 2012-05-22 | 2012-09-19 | 东风襄阳旋压技术有限公司 | Rotary pressing tooling for manufacturing asymmetric T-shaped rotary pressing belt wheels |
| JP2014012287A (en) * | 2012-07-04 | 2014-01-23 | Sunstar Engineering Inc | Method for manufacturing gear |
| JP2014077498A (en) * | 2012-10-11 | 2014-05-01 | Exedy Corp | Torque converter |
| CN103447369A (en) * | 2013-09-23 | 2013-12-18 | 合肥晟泰克旋压科技有限公司 | Spinning manufacturing process of large-diameter superwide spinning belt wheel |
| CN103447369B (en) * | 2013-09-23 | 2015-09-09 | 合肥晟泰克旋压科技有限公司 | A kind of spinning manufacturing process of major diameter ultra-wide spinning belt pulley |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3000346B2 (en) | 2000-01-17 |
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