JPS5950249A - Manufacturing method of flywheel - Google Patents
Manufacturing method of flywheelInfo
- Publication number
- JPS5950249A JPS5950249A JP15950382A JP15950382A JPS5950249A JP S5950249 A JPS5950249 A JP S5950249A JP 15950382 A JP15950382 A JP 15950382A JP 15950382 A JP15950382 A JP 15950382A JP S5950249 A JPS5950249 A JP S5950249A
- Authority
- JP
- Japan
- Prior art keywords
- boss
- flywheel
- hole
- annular
- mold
- 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 description 7
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 12
- 238000003780 insertion Methods 0.000 abstract 3
- 230000037431 insertion Effects 0.000 abstract 3
- 238000004080 punching Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 241000270728 Alligator Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
- F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
- F16F15/3153—Securing inertia members to the shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はフライホイール磁石回転子に用いるのに好適な
フライホイールを製造する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a flywheel suitable for use in a flywheel magnet rotor.
内燃機関に取付けられる磁石発？１７． ｕ享の回転子
として、カップ状のフライホイール本体にボス部を取付
けたフライホイールに永久磁石を取付けたフライホイー
ル磁石回転子が用いられている。この種のフライホイー
ルにボスを取イ」ける場合、従来はボスのｎ部をリベッ
トによりフライホイール本体に固驚する方法がとられて
いたが、リベットを用層ると部品点数が多くなる上に組
立の自動化が困難であるという欠点があった。そこで最
近になッテ、ボスの一部を塑性変形することにヱ９ボス
に一体にかしめ部を形成して、該かしめ部とボスのｎ部
とでフライホイール本体の壁部を挟持した状態でボスを
フライホイール本体に結合する方法が提案された（例え
ば特公昭５６−２２３０１号）。A magnet attached to an internal combustion engine? 17. A flywheel magnet rotor is used as a rotor for the rotor, which has a cup-shaped flywheel body with a boss attached to the flywheel and permanent magnets attached to the flywheel. When attaching a boss to this type of flywheel, the conventional method was to attach the n part of the boss to the flywheel body using rivets, but using rivets increases the number of parts and increases the number of parts required. The disadvantage was that it was difficult to automate assembly. Therefore, recently, we decided to plastically deform a part of the boss and formed a caulked part integrally with the boss, so that the wall of the flywheel body is sandwiched between the caulked part and the n part of the boss. A method of connecting the boss to the flywheel body was proposed (for example, Japanese Patent Publication No. 56-22301).
ところが、第１図に示すように、フライホイール本体１
′の壁部１０１′に設けた円形の孔１０２′に円筒状の
ボス２′を嵌合させて、ボス２′の外周部に形成したか
しめ都２０３′を図示し、ない型により壁部１０１′側
に押圧した場合には、かしめ部２０３′により川潰さ１
しる孔１０２′の周辺部の金属が図示の矢印ａ、ｂの如
く径方向の内側及び外側の双方向に流れるため、ボス２
′側に流れる金Ｐ、＋４が不足して孔１０２′の内周と
ボス２′との間に隙間ｇが生じ、ボスとフライホイール
本体どの結合強度、特にフライホイールの回転方向に対
する結合強度が弱くなる欠点があった。このような欠点
をなくすため、ボス及びこのボスが嵌合する孔の断面形
状を円形以外の形状（例えば多角形）にすることが提案
されたが、この場合には、ボス及びフライホイールを塑
性変形で作る場合に型の形状が複雑になる欠点があった
。！侍に断面多角形のボスを作る型のように角部を多く
有する型の」場合にＱｊｌ、型もぢが悪く、型の０仙Ｉ
Ｇが頻繁に必要になって面倒であった。However, as shown in Fig. 1, the flywheel body 1
A cylindrical boss 2' is fitted into a circular hole 102' provided in the wall part 101', and a caulking capital 203' formed on the outer periphery of the boss 2' is shown. When pressed to the ' side, the caulking part 203' causes the river to collapse 1.
Since the metal around the hole 102' flows both radially inward and outward as indicated by arrows a and b in the figure, the boss 2
Due to the lack of gold P and +4 flowing towards the ' side, a gap g is created between the inner periphery of the hole 102' and the boss 2', which reduces the bonding strength between the boss and the flywheel body, especially the bonding strength in the direction of rotation of the flywheel. It had the disadvantage of being weak. In order to eliminate these drawbacks, it has been proposed to make the cross-sectional shape of the boss and the hole into which the boss fits into a shape other than a circle (for example, a polygon). When making by deformation, the shape of the mold becomes complicated. ! Qjl in the case of a mold that has many corners, such as the mold that makes a boss with a polygonal cross section, the mold is bad, and the mold is 0 Sen I.
G was required frequently and was troublesome.
不発明の目的は、単純な形状のボスを用いてしかもボス
とフライホイール本体との結合強朋を高めることができ
るようにしたフライホイールの製造方法を提案すること
にある。SUMMARY OF THE INVENTION An object of the invention is to propose a method for manufacturing a flywheel that uses a boss with a simple shape and can increase the strength of the connection between the boss and the flywheel body.
本発明は、フライホイール本体のボスが取イ」りられる
壁部に形成したボス嵌合用孔にボスヲ嵌合させて該ボス
の一端に設けた鍔部をフライホイール本体の一面に当接
させ、ボスの他端側から前りじフライホイール本体の壁
部に向けて変位する型により前記ボスの一部を塑性変形
させてＭｌｊ記壁部の他面の前記ボス読合用孔の周辺部
に圧接するかしめ７１１１を形成し、前記かしめ部とＭ
記鍔部とにより前記壁部を挾持した状態で前記フライホ
イール本体とボスとを結合するフライホイールの製造方
法において、前記フライホイールの壁部の他面の前記ボ
スのかしめ部が係接する部分に隣接した領域に該かしめ
部を取囲む環状の溝を形成し、１京状に形成された金属
流れ規制用環状突起ケ前記１ｉ’４に係入することによ
り前記壁部のホス吠合用孔の周辺部の金机の流れ方向を
規制しつつ前記ボスのかしめ部を前記壁部側に押圧して
前記ボス嵌合用孔の周辺部を圧潰することを特徴とした
ものである。The present invention comprises fitting a boss into a boss fitting hole formed in a wall portion of the flywheel body into which the boss is removed, and bringing a flange provided at one end of the boss into contact with one surface of the flywheel body; A part of the boss is plastically deformed by a mold that is displaced from the other end side of the boss toward the wall of the front flywheel main body, and is pressed against the periphery of the boss reading hole on the other side of the wall section marked Mlj. A caulking 7111 is formed, and the caulking part and M
In the method for manufacturing a flywheel, in which the flywheel main body and the boss are joined with the wall portion being held between the retaining flange portion, a portion of the other surface of the wall portion of the flywheel where the caulking portion of the boss engages is provided. An annular groove surrounding the caulked portion is formed in an adjacent area, and the metal flow regulating annular protrusion formed in a zillion-shape shape engages the aforementioned 1i'4, whereby the hosing hole in the wall portion is closed. The present invention is characterized in that the peripheral portion of the boss fitting hole is crushed by pressing the caulked portion of the boss toward the wall portion while regulating the flow direction of the metal plate in the peripheral portion.
以下図面を参照して本発明の方法を詳細に説明する。The method of the present invention will be explained in detail below with reference to the drawings.
第２図は、本発明の方法により製造されたフライホイー
ルＦを示したもので、同図において１はカップ状に形成
されたフライホイール本体である。FIG. 2 shows a flywheel F manufactured by the method of the present invention, in which reference numeral 1 denotes a flywheel body formed in a cup shape.
フライホイール本体１の底絵部１０１の中央には円形の
ボス嵌合用孔１０２が形成され、この孔１０２に円筒状
のボス２が嵌合されている。ボス２はその−Ｑ１１４に
鍔部２０１を一体に有し、この鍔部２０１はフライホイ
ール本体１の底壁部１０１の一面（外面）に当接されて
いる。ボス２の胴部２０２の外周の一部が径方向の外側
に拡大するように塑性変形されてかしめ部２０３が形成
され、このかしめ都２０３けフライホイールの底壁部１
０１の他面（内面）に係接されている。かしめ部２０３
によりボス嵌合用孔１０２の周辺部が圧潰され、かしめ
都２０３と鍔部２０１とにより孔１０２の周辺部が挾持
された状態でボス２とフライホイール本体１とが結合さ
れている。ボスとフライホイール本体との間の回り止め
を更に確実に図るため、鍔部２０１に設けられた；ＪＩ
Ｊｉ！＜の孔２０４にそれぞれ、底壁部１０１に形成
された打出部１０３が係入されている。複数の孔２０４
及び」Ｊ山部１０３に周方向に等角度間’ｓ’ｊ＋をあ
Ｖ）て設りられている。フライホイールの城壁部のかし
め部２０３が係接する部分に隣接しん領域に、かしめ部
２０３をＩＩＭ囲む、孔１０２と同心的な断面Ｖ字状の
環状溝１０４が、打出部１０３よりも内イ１すに位置す
るように設けられ、底壁部１０１の打出部１０３よりも
外側の部分の両面の相対応する位置にも、孔１０２と同
心的な断面Ｖ字状の＋３〆状仲Ｙ１ （１５、１０６が
形成されている。ボス２の胴部２０２内に１〆、Ｌテー
バが付けられ／こ府＋ｆｊり；合孔２０５が形成され、
この軸嵌合孔に図示しない回転軸のテーパ部が（’Ｊｅ
％されるようになっている。このフライホイールを用
いて（川石回転子を構成する場合には、フラ・ｆホイー
ル本体１の周楯部１０７の内周に永久磁石３が１４１着
される。A circular boss fitting hole 102 is formed in the center of the bottom picture part 101 of the flywheel body 1, and the cylindrical boss 2 is fitted into this hole 102. The boss 2 integrally has a flange 201 at its -Q114, and this flange 201 is in contact with one surface (outer surface) of the bottom wall 101 of the flywheel body 1. A part of the outer periphery of the body portion 202 of the boss 2 is plastically deformed so as to expand outward in the radial direction to form a caulked portion 203, and this caulked portion 203 is attached to the bottom wall portion 1 of the flywheel.
It is engaged with the other surface (inner surface) of 01. Caulking part 203
As a result, the periphery of the boss fitting hole 102 is crushed, and the boss 2 and the flywheel body 1 are coupled with the periphery of the hole 102 being held between the caulking capital 203 and the flange 201. In order to further ensure rotation prevention between the boss and the flywheel body, a JI
Ji! Embossed portions 103 formed on the bottom wall portion 101 are inserted into the holes 204, respectively. multiple holes 204
and 's'j+ are provided at equal angles in the circumferential direction on the J mountain portion 103. An annular groove 104 having a V-shaped cross section and concentric with the hole 102 and surrounding the caulking part 203 IIM is located in the shin region adjacent to the part where the caulking part 203 of the castle wall of the flywheel engages. +3-shaped grooves Y1 (15 , 106 are formed in the body part 202 of the boss 2. A matching hole 205 is formed in the body part 202 of the boss 2.
The tapered part of the rotating shaft (not shown) is inserted into this shaft fitting hole ('Je
%. When this flywheel is used to construct a Kawaishi rotor, permanent magnets 3 are attached to the inner periphery of the circumferential shield portion 107 of the flywheel main body 1.
次に第３図Ａ乃至Ｃを参照してＪ二記フライホイ−ルを
製造する本発明の詳細な説明する。第３図において４は
基台４０１と該基台４０１の上に固定された型部４０２
とを有する雌型で、型部４０２にはフライホイール本体
の外径に等しい内型を有する型孔４０３が設りられ、こ
の型孔４０３の上端開口部周縁にはテーパ部４０４が形
成されている。型孔４０２内には、ｎ１ＪＩｉ型４と同
質の材料からなるリング状のバット５が摺動自在に嵌合
され、このバット５の下端は雌型４の基台４０１を摺動
自在に貝〕ｎ１シて設けられた複数のクツ、ジョンビン
６により支持されている。バット５の内周の下端には径
方向の内側に突出する突条部５０１が形成され、バット
５内に嵌合されたボス保持台７がこの突条部５０１に係
止されている。またバット５の上端面に断面ｖ字状の環
状突起（リッジ）５ｏ２が空けられ１いる。雌型の基台
４０１の中央には円柱状の突出部４０５が設けられ、こ
の突出部４０５の外周と型孔４０３の内周との間にバッ
ト５の下端が嵌合し得る環状の溝４０６が形成されてい
る。加工時の面オ＾゛度を高め、且つ加工された製品の
取出しを可能にするため、クッションビン６には常に下
方から上方に向う向きの圧力が加えられている。パット
５内のボス保持台７上には絞り一カリエにより作られた
ボスの半加工品２ｏが保持され、このボス半加工品はそ
の下端のＱｒ５部２０１の外周がバット５の内周に嵌合
されて位置決めされている。ボス半加工品２ｏはその胴
部の鍔部２０１寄りの半部に大径部２０６を有し、大径
部２０６とその上方の小径部２０７との間にｅまテーバ
部２０８が形成されている。鰐部２０１には複数の孔２
０４が予め形成されている。最初バット５はその上端面
が型部４０２の上端面と而−になる位置にあり、このバ
ット５の上端面の環状突起５０２上に軟鋼仮性の絞り加
工が可能な材料からなる円板状のフライホイール素材１
ｏが載ぜられている。フライホイール素材１ｏの中央部
にＶまボス半加工品の胴部の大径部２０６がＵ〈合し得
る円形のボス嵌合用孔１０２が形成され、ホス半加工品
の小径部２０７がこの孔１０２にゆるく嵌合されている
。Next, the present invention for manufacturing a J2 flywheel will be described in detail with reference to FIGS. 3A to 3C. In FIG. 3, 4 is a base 401 and a mold part 402 fixed on the base 401.
The mold part 402 is provided with a mold hole 403 having an inner diameter equal to the outer diameter of the flywheel body, and a tapered part 404 is formed at the periphery of the upper end opening of this mold hole 403. There is. A ring-shaped butt 5 made of the same material as the n1JIi mold 4 is slidably fitted into the mold hole 402, and the lower end of this butt 5 is slidably attached to the base 401 of the female mold 4.] The shoes are supported by a plurality of shoes and bins 6 provided one after the other. A protrusion 501 that protrudes radially inward is formed at the lower end of the inner periphery of the bat 5, and the boss holder 7 fitted inside the bat 5 is locked to the protrusion 501. Further, an annular projection (ridge) 5o2 having a V-shaped cross section is formed on the upper end surface of the bat 5. A cylindrical protrusion 405 is provided at the center of the female mold base 401, and an annular groove 406 into which the lower end of the bat 5 can fit is formed between the outer circumference of the protrusion 405 and the inner circumference of the mold hole 403. is formed. Pressure is constantly applied to the cushion bin 6 from below to above in order to increase the surface roughness during processing and to enable removal of processed products. A boss semi-finished product 2o made by drawing and carrie is held on the boss holding table 7 in the pad 5, and the outer periphery of the Qr5 portion 201 at the lower end of this boss semi-finished product fits into the inner periphery of the bat 5. are aligned and positioned. The boss blank 2o has a large diameter part 206 in the half of its body near the flange 201, and a tapered part 208 is formed between the large diameter part 206 and the small diameter part 207 above it. There is. A plurality of holes 2 are provided in the alligator part 201.
04 is formed in advance. Initially, the bat 5 is in a position where its upper end surface is intertwined with the upper end surface of the mold part 402, and a disc-shaped material made of a material that can be subjected to a drawing process of soft steel is placed on the annular protrusion 502 on the upper end surface of the bat 5. Flywheel material 1
o is listed. A circular boss fitting hole 102 is formed in the center of the flywheel material 1o, and the large diameter portion 206 of the body of the V boss blank can fit into the U. 102 is loosely fitted.
雌型４の上方には、雄型８が配置され、この雄型８は図
示し安い支持機構によＶ型孔４０３と同軸的に且り上下
動自在に支持されている。雄型８の外Ｊ行雌型４の型孔
４０３の内径よりもフライホイール本体１の周壁部の厚
味分だけ小さく設定され、その中央部にはボス半加工品
２０の小径部２０７が嵌合し得る孔８０１が設けられて
いる。A male mold 8 is disposed above the female mold 4, and this male mold 8 is supported coaxially with the V-shaped hole 403 and movable up and down by a support mechanism that is not easily illustrated. The inner diameter of the mold hole 403 of the outer J-row female mold 4 of the male mold 8 is set smaller by the thickness of the peripheral wall portion of the flywheel body 1, and the small diameter portion 207 of the boss blank 20 is fitted into the center thereof. A matching hole 801 is provided.
孔８０１の下端開口部にはボス半加工品２０の大径部２
０６を褒形して前記かしめ部２０３を形成するための大
径１５１ｉ ８０２が形成されている。またＪＬ８０１
の周囲に−１、小径の孔８０３が複数個設けられ、これ
らの孔にはそれぞれ、ボスの鍔部２０１の孔２０４に係
入する打出部１０３を形成するだめの打出ビン９が上下
動自在に嵌合されている０そしてＴＩＮ型８の下端面の
杓出ピン９より内側１の領域に断面Ｖ字状の金属流れ規
制用現状突起８０４が形成され、打出ビン９より外側の
領域の前記バットの環状突起５０２に対向する位置に同
じく断面Ｖ字状のフライホイール素材位わ°決め用環状
突起８０５が形成されている。The large diameter portion 2 of the boss blank 20 is located at the lower end opening of the hole 801.
A large diameter 151i 802 for forming the caulked portion 203 is formed in the shape of 06. Also JL801
A plurality of small-diameter holes 803 are provided around the boss, and in each of these holes, a second punching pin 9 that forms a punching portion 103 that engages in the hole 204 of the flange 201 of the boss is vertically movable. A metal flow regulating protrusion 804 having a V-shaped cross section is formed in the region 1 inside the scooping pin 9 on the lower end surface of the TIN mold 8, and A flywheel material positioning annular projection 805 having a V-shaped cross section is formed at a position opposite to the annular projection 502 of the bat.
上記第６図に示した装置ｔ４゛を用いて本発明全実施す
る場合には、ボス半加工品２０及びフライホイール累月
１０をセットした後雄型８を第３図Ａに示す位置から下
降させる。この雄型のトレナの過程で先ず同図Ｂに示す
ように雄型８が型孔４０３内に嵌入してフライホイール
素４４１０にカップ状のフライホイールの形に絞り加工
する。このとき環状突起５０２．８０４及び８０５がフ
ライホイール素材１０に食い込んで断面Ｖ字状の環状Ｍ
′を形成し、フライホイール本体の絞り加工時に素、材
が移動してボス嵌合用の孔１０２がつぶれるの釦防止す
る。雄型８が更に下降すると７ｄｆｉ型８０大径部８０
２がボス半加工品２０の大径部２０７に係合して該大径
部２０７を塑性変形させるとともに、フライホイール本
体１の成形を更に進め、雄型８が第６図Ｃに示す最終位
１ｄまで下降した状純で、フライホイール本体１の成形
とボス２のかしめ都２０３の成形とを児了する。かしめ
都２０３の成形の最終過程において、該かしめ部２０３
がフライホイール本体１のボス恢合用孔１０２０周辺部
を圧潰するが、このとき、１４１型８の環状突起８０４
がかしめ都２０３を取囲む環状溝内に係入した状態にあ
４）ので、第４図に矢印ａで示したようにボス嵌合用孔
１０２の周辺部の全組の流れ方向が、径方向の内側に向
う方向に規制され、径方向の外側には全組が殆んど流れ
ない。従ってボス嵌合用孔１０２の内周１川をボス２の
外周に圧接式せることができ、ボス白２（台用孔１０２
とボス２との間にｉｊｌ １ｉｉ７ｉが生じるのを防ぐ
ことができる。When carrying out the entire invention using the apparatus t4'' shown in FIG. 6 above, the male die 8 is lowered from the position shown in FIG. let In the process of training the male mold, the male mold 8 is first fitted into the mold hole 403 and drawn into the flywheel element 4410 into the shape of a cup-shaped flywheel, as shown in FIG. At this time, the annular projections 502, 804 and 805 bite into the flywheel material 10 to form an annular M having a V-shaped cross section.
' is formed to prevent the boss fitting hole 102 from being crushed due to movement of the material during drawing of the flywheel body. When the male mold 8 further descends, the 7dfi mold 80 large diameter part 80
2 engages with the large-diameter portion 207 of the boss blank 20 to plastically deform the large-diameter portion 207, and the molding of the flywheel body 1 is further advanced, and the male mold 8 is brought to the final position shown in FIG. 6C. When the flywheel body 1 is lowered to 1d, the molding of the flywheel body 1 and the caulking capital 203 of the boss 2 are completed. In the final process of forming the caulking portion 203, the caulking portion 203
crushes the area around the boss fitting hole 1020 of the flywheel body 1, but at this time, the annular protrusion 804 of the 141 type 8
Since the caulking capital 203 is in the annular groove surrounding it 4), the flow direction of all the sets around the boss fitting hole 102 is in the radial direction, as shown by the arrow a in FIG. It is regulated in the inward direction, and almost no flow in the radial direction. Therefore, the inner circumference of the boss fitting hole 102 can be pressed into contact with the outer circumference of the boss 2, and the boss white 2 (base hole 102)
It is possible to prevent ijl 1ii7i from occurring between and boss 2.
雄型８かに終位置Ｉで下降したシ：打出ビン９が下降し
て打出部１０３がル成きれ、この土」山部がボスの鍔部
２０１の孔２０４に係入される。この場合、第６図に示
すように、打出ビン９の外径ｄ１を鍔部２０１の孔２０
４の１）−Ｎｌミｄ２よりも大きくしておくと、１１ノ
断力が作用する領域の幅１．が、’７１４５図に示すよ
うにデ」出ヒン９の昇任＋Ｊ＋”を孔２０４の内径ｄ２
に等しくした場合の）り断力作用領域の幅ｔ２よりも犬
きくなるため、打出部１０３の高さｈを旨くとってもフ
ライホイール本体の底壁部１０１が破断することがない
。したがって杓出部１０３を孔２０４内により深く係入
することができ、フライホイールの底壁部１０１とボス
の鍔部２０１との結合強度を高くすることができる。When the male die 8 is lowered at the final position I, the ejection pin 9 is lowered to complete the ejection portion 103, and the ridge of this soil is inserted into the hole 204 of the flange portion 201 of the boss. In this case, as shown in FIG.
4-1) -Nl is larger than d2, the width of the area where the shearing force of 11 acts is 1. However, as shown in Figure '7145, the inner diameter d2 of the hole 204 is
Since the width t2 of the shearing force acting area is wider than the width t2 of the shearing force acting area when the width is set equal to , the bottom wall portion 101 of the flywheel body will not break even if the height h of the ejecting portion 103 is set to an appropriate value. Therefore, the scooping portion 103 can be inserted more deeply into the hole 204, and the strength of the connection between the bottom wall portion 101 of the flywheel and the flange portion 201 of the boss can be increased.
上記の実施例では、フライホイール本体の成形とボスの
取（＝ｊけとを同じ工程で１−工なりようにしたが、別
工程で成形したフライホイール本体の底壁部のボス嵌合
用孔にボスを嵌合さ姓、ボスの一部を変形することによ
りかしめ部ケ形成してボスとフライホイールとを一体に
結合するＱｊ合しも木究明を適用できる。In the above embodiment, the molding of the flywheel body and the removal of the boss were done in the same process in one process, but the boss fitting hole in the bottom wall of the flywheel body was molded in a separate process. The method can also be applied to Qj joints in which the boss is fitted to the flywheel, and a part of the boss is deformed to form a caulked part to integrally connect the boss and the flywheel.
以上のように本発明におい′″Ｃ，＆、、ｌ１、フライ
ホイール本体のボス嵌合用孔の周辺部に、ボスのかしめ
部を取囲むＬＩ、を状溝を形成し、この環状俗に金属流
れ防止用の環状突起を係入してボス嵌合用孔の周辺部の
金川の流れ方向を規制しつつボスのかしめ部によりボス
嵌合用孔の周辺部を圧潰するようにしたので、ボス嵌合
用孔の内周とホスとの間に隙間を生じさせることなくボ
スをフライホイール本体に一体に結合することができ、
ボスとフライホイール本体との結合強度’に＋％＜する
ことができる利点がある。As described above, in the present invention, a LI-shaped groove is formed around the boss fitting hole of the flywheel main body, and this annular groove is generally made of metal. The annular protrusion for preventing flow is inserted to restrict the flow direction of the flow around the boss fitting hole, and the caulking part of the boss crushes the surrounding area of the boss fitting hole. The boss can be integrally connected to the flywheel body without creating a gap between the inner periphery of the hole and the host.
It has the advantage of being able to increase the bonding strength between the boss and the flywheel body by +%.
第１図は従来の方法により製造されたフライホイールの
フライホイール本体とボスとの結合部付近を示す断ｍ］
図′、第２図は不発り］の方法により製造されたフライ
ホイールの縦断面図、第３図Ａ乃至Ｃは本発明の方法を
実施する成形装置の要部を示したもので同図Ａは雄型が
下降する前の状態を示す断面図、同図Ｂ及びＣはそれぞ
れ雄型が下降する途中の状態及び雄型が最終位Ｉｉ′＃
まで下降した状態を示す断面図である。第４図は本発明
の方法衷より製造されブとフライホイールのフライホイ
ール本体とボスとの結合部付近の状態を示す断面図、第
５図及び第６図ｉｌ′ｉ第６図Ａ乃至Ｃに示した装置に
よりボスをフライホイール本体に結合する場合の、打出
ビンの径と該打出ビンにより打出し得る打出部の高さと
の関係を示す断面図である。
１・・・フライホイール本体、１０１・・・底壁部（ボ
スが取付けられる壁部）、１０２・・・ボス嵌合用孔、
１０４・・・環状摘、２・・・ボス、２０１・・・鍔部
、ｚ０３・・・かしめ部、４・・・雌型、８・・・雄型
、８０４・・・金属流れ規制用環状突起、１０・・・フ
ライホイール菜材、２０・・・ボス半加工品。Figure 1 is a cross-section m showing the vicinity of the joint between the flywheel body and the boss of a flywheel manufactured by a conventional method]
Fig. 2 is a vertical cross-sectional view of a flywheel manufactured by the method shown in Fig. is a cross-sectional view showing the state before the male mold descends, and B and C in the same figure are respectively the state in which the male mold is in the middle of its descent and the state where the male mold is in the final position Ii'#
FIG. FIG. 4 is a sectional view showing the state of the flywheel produced by the method of the present invention near the joint between the flywheel body and the boss, FIGS. 5 and 6, and FIGS. 6A to C. FIG. 3 is a sectional view showing the relationship between the diameter of the punching pin and the height of the punching portion that can be punched out by the punching pin when the boss is coupled to the flywheel body using the device shown in FIG. DESCRIPTION OF SYMBOLS 1... Flywheel main body, 101... Bottom wall part (wall part to which the boss is attached), 102... Boss fitting hole,
104... Annular knob, 2... Boss, 201... Flange part, z03... Caulking part, 4... Female type, 8... Male type, 804... Annular shape for metal flow regulation Protrusion, 10... Flywheel material, 20... Boss semi-processed product.
Claims (1)
たボス嵌合用孔にボスを嵌合させて該ボスの一端に設け
た鍔部を前記フライホイール本体の一面に当接させ、前
記ボスの他端側から前記フライホイール本体の壁部に向
けて変位する型により前記ボスの一部を塑性変形させて
前記壁部の他面の前記孔の周辺部に圧接するかしめ部を
形成し、前記かしめ部と前記鍔部とにより前記壁部を挾
持した状態で前記フライホイール本体とボスとを結合す
るフライホイールの製造方法において、前記フライホイ
ールの壁部の他面の前記ボスのかしめ部が係接する部分
に陳接した領域に該かしめ部を取囲む環状の溝を形成し
、環状に形成された金属流れ規制用環状突起を６ｉＩ記
Ｒ’＃に係入することにより前記ボス嵌合用孔の周辺部
の金ｒ８の流れ方向を規制しつつ前記ボスのかしめ部を
前記壁部側に押圧して前記ボス嵌合用孔の周辺部を圧潰
することを特徴とするフライホイールの製造方法。The boss is fitted into a boss fitting hole formed in a wall portion of the flywheel body to which the boss is attached, and the flange provided at one end of the boss is brought into contact with one surface of the flywheel body, and the other end of the boss is fitted. A part of the boss is plastically deformed by a mold that is displaced from the side toward the wall of the flywheel main body to form a caulked part that presses against a peripheral part of the hole on the other surface of the wall, and the caulked part In the method for manufacturing a flywheel, the flywheel main body and the boss are joined together with the wall portion held between the wall portion and the flange portion, wherein the portion of the other surface of the wall portion of the flywheel that is engaged with the caulking portion of the boss. An annular groove surrounding the caulked portion is formed in the region marked with , and an annular protrusion for regulating metal flow is inserted into R'# of 6iI, thereby forming a peripheral part of the boss fitting hole. A method of manufacturing a flywheel, comprising: pressing the caulked portion of the boss toward the wall portion while regulating the flow direction of the gold r8, thereby crushing the peripheral portion of the boss fitting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15950382A JPS5950249A (en) | 1982-09-16 | 1982-09-16 | Manufacturing method of flywheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15950382A JPS5950249A (en) | 1982-09-16 | 1982-09-16 | Manufacturing method of flywheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5950249A true JPS5950249A (en) | 1984-03-23 |
| JPS649503B2 JPS649503B2 (en) | 1989-02-17 |
Family
ID=15695188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15950382A Granted JPS5950249A (en) | 1982-09-16 | 1982-09-16 | Manufacturing method of flywheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5950249A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102538478B1 (en) * | 2021-06-07 | 2023-05-31 | 한국항공우주연구원 | Drone and drone anti-torque compensation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622301A (en) * | 1979-07-31 | 1981-03-02 | Sanshin Kagaku Kogyo Kk | Coagulant for latex |
-
1982
- 1982-09-16 JP JP15950382A patent/JPS5950249A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622301A (en) * | 1979-07-31 | 1981-03-02 | Sanshin Kagaku Kogyo Kk | Coagulant for latex |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS649503B2 (en) | 1989-02-17 |
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