JPS63309339A - Production of rear rim in wheel for automobile - Google Patents
Production of rear rim in wheel for automobileInfo
- Publication number
- JPS63309339A JPS63309339A JP14256887A JP14256887A JPS63309339A JP S63309339 A JPS63309339 A JP S63309339A JP 14256887 A JP14256887 A JP 14256887A JP 14256887 A JP14256887 A JP 14256887A JP S63309339 A JPS63309339 A JP S63309339A
- Authority
- JP
- Japan
- Prior art keywords
- rim
- mold
- primary
- forming
- die
- 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 description 6
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims description 11
- 229910001234 light alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 238000009987 spinning Methods 0.000 abstract description 5
- 239000011324 bead Substances 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 2
- 238000004080 punching Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 241000252073 Anguilliformes Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は３ピース型自動車用ホイールにお４するリヤー
リムの製造法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing a rear rim for a three-piece automobile wheel.
〈従来の技術とその問題点〉
予じめ別個に作成したフロントリム並びに１ツヤ−リム
の一対と、ホイールディスクとを多数のボルト・ナツト
により組立一体イヒした所８百３ピース型の自動車用水
イールは既知であり、近時その１ツヤ−リム側の円周面
に凹状のウニｌし部を設すすることによって、自動車々
体側のディスクブレーキ装置やその付属部品との（ｊ当
現象を防ぎ、ＦＦ車などへ制約なく装着使用できるよう
にすることが提案されつつある。<Conventional technology and its problems> An 803-piece automobile water tank was created by assembling a front rim, a pair of glossy rims, and a wheel disc, which had been made separately in advance, with a large number of bolts and nuts. Eels are known, and recently, by providing a concave ridge on the circumferential surface of the glossy rim side, it has been possible to prevent this phenomenon from occurring between the disc brake device on the automobile side and its attached parts. Proposals are being made to prevent this problem and allow it to be installed and used in front-wheel drive vehicles without restrictions.
ところが、リヤーリム側に凹状ウェル部を塑性加工する
場合には、その加工後のリム製品を成形金型から取りは
ずすことが困難であるため、その製造法に特別の工夫を
施す必賞がある。However, when plastically working a concave well on the rear rim side, it is difficult to remove the processed rim product from the molding die, so special measures must be taken in the manufacturing method.
〈問題点を解決するための手段〉
本発明はこのような問題点の解決を主目的としており、
そのためにリヤーリムの製造法として、軽合金素材のブ
ランクをプレス打抜き加工して、一定な直径寸法の円板
を作成用意し、
先づ、その円板を１次成形用金型の回転中心部に取付け
た上、その金型を回転させ乍ら倣いロールによりスピニ
ング加工して、上記円板を断面ほぼコ字型に折り曲げる
と共に、その円周面を粗成形して１次リム予備体とし、
次いで、その１次リム予備体を１次成形用金型から取り
はずして、２次成形用偏心金型へその成形後取りはずせ
る偏心状態に付け替えた上、その金型を偏心回転させ乍
ら倣いロールにより再度スピニング加工して、上記１次
リム予備体の円周面を目的の最終断面形状に仕上げ成形
することにより、その円周面に凹状ウェル部を備えた２
次リム予備体とし、
その後、金型から取りはずした２次リム予備体の中心部
を大きくプレス打抜き加工して、凸片と凹欠とが交互に
変化する開口輪郭形状のホイールディスク用取付フラン
ジを形成すると一挙同時に、その取付フランジの各凸片
に、ホイールディスク取付け用ボルトの挿通孔も開口さ
せることを特徴とするものである。<Means for solving the problems> The main purpose of the present invention is to solve these problems,
For this purpose, the manufacturing method for the rear rim is to press punch a light alloy blank to create a disk with a constant diameter, and then place the disk in the center of rotation of the primary mold. Once installed, the mold is rotated and spun using a tracing roll to bend the disc into a substantially U-shaped cross section and roughly form the circumferential surface to form a primary rim preliminary body. , the primary rim spare body was removed from the primary molding mold, replaced with an eccentric mold for secondary molding in an eccentric state that could be removed after molding, and while the mold was rotated eccentrically, the mold was rotated using a copying roll. By spinning again and finishing forming the circumferential surface of the primary rim preliminary body into the desired final cross-sectional shape, a second rim having a concave well portion on the circumferential surface is formed.
The secondary rim spare body was then removed from the mold, and the central part of the secondary rim spare body was then largely press punched to form a mounting flange for a wheel disc with an opening profile in which convex pieces and concave notches alternated. It is characterized in that, at the same time as it is formed, an insertion hole for a wheel disk mounting bolt is opened in each convex piece of the mounting flange.
〈実施例〉
以下、図面に基いて本発明の詳細な説明すると、その自
動車用ホイールのりャーリムを製造するに当っては、先
づ第１図のように軽合金素材のブランクをプレス打抜き
加工して、金型への取付け用センタ一孔（１１）が開口
された一定な直径寸法の円板（１２）を作成用意する。<Example> Hereinafter, the present invention will be explained in detail based on the drawings. In manufacturing the automobile wheel rim, first, as shown in Fig. 1, a blank made of a light alloy material is press punched. A circular plate (12) having a constant diameter and having a center hole (11) for attachment to a mold is prepared.
そして、その円板（１２）の板面が１次成形用金型（１
３）の回転軸線（Ｘ −Ｘ）と直交する如く、該円板（
１２）のセンタ一孔（１１）を第２図（＋）のように、
金型（１３）から突出するセンターピン（１４）に取付
けセットし、その金型（１３）を回転させ乍ら倣いロー
ル（１５）によりスピニング加工して、断面ほぼコ字型
に折り曲げると共に、該金型（１３）の円周面に沿う第
１次的な塑性変形作用を与えて、１次リム予備体（Ｒ１
）に粗成形するのである。Then, the plate surface of the disk (12) is the primary molding die (1).
3), the disk (
12) center hole (11) as shown in Figure 2 (+),
The center pin (14) protruding from the mold (13) is attached and set, and the mold (13) is rotated while being spun with a tracing roll (15) to bend it into a substantially U-shaped cross section. A primary rim preliminary body (R1
).
その金型（１３）の円周作用面は図から明白なように、
回転軸線＜Ｘ−Ｘ＞ と鋭角（θ）に交叉する外法がり
の平坦な傾斜勾配面を備えており、これによって１次リ
ム予備体（Ｒ１）のほぼ後半部が滑らかに拡開するラッ
パ型に賦形されることとなっている。As is clear from the figure, the circumferential working surface of the mold (13) is
The wrapper is equipped with a flat inclined slope surface on the outside that intersects the axis of rotation <X-X> at an acute angle (θ), thereby allowing the rear half of the primary rim spare body (R1) to expand smoothly. It is to be shaped into a mold.
次に、その１７！Ａリム予備体（Ｒ１）を１次成形用金
型（１３）から取りはずして、第２図（ｎ）（ＩＩＩ）
のように２次成形用偏心金型（１６）の偏心ピン（１７
）へ、上記センタ一孔（１１）との嵌合により取付けセ
ットし、その金型（１６）を偏心回転させ乍ら倣いロー
ル（１８）により再度スピニング加工し、タイヤ係止フ
ランジ部（１９）やビードシート部（２０）、凹状のウ
ェル部（２１）を備えた最終断面形状の２次リム予備体
（Ｒ２）として仕上げ成形するのである。Next, number 17! The A rim spare body (R1) is removed from the primary molding mold (13), and as shown in Fig. 2 (n) (III).
The eccentric pin (17) of the eccentric mold (16) for secondary forming as shown in
) by fitting with the center hole (11), and while eccentrically rotating the mold (16), spinning is performed again using the copying roll (18) to form the tire locking flange portion (19). The secondary rim preliminary body (R2) is then finished formed into a final cross-sectional shape including a bead seat portion (20) and a concave well portion (21).
その場合、偏心金型（１６）の回転軸線（Ｙ−Ｙ）は上
記成形完了後の２次リム予備体（Ｒ２）を支障なく取り
はずせるように、その予備体（Ｒ２）の中心線（１次成
形用金型の回転軸線）（Ｘ−Ｘ）よりも必要な一定量（
Ｌ）だけ偏心されていること、言うまでもない。In that case, the rotational axis (Y-Y) of the eccentric mold (16) is set at the center line (1 The required constant amount (
Needless to say, it is eccentric by L).
その成形後に偏心金型（１６）から取りはずした２次リ
ム予備体（Ｒ２）の中心部を、引き続き上記センタ一孔
（１１）よりも大きくプレス打抜き加工し、第３図のよ
うな凸片（２３）と凹欠（２４）とが交互に変化する開
口輪郭形状のホイールディスク用取付フランジ（２５）
を形成すると同時に、その各凸片（２３）にホイールデ
ィスク取付け用ポル） （２６）の挿通孔（２７）も開
口させて、八にリヤーリム（Ｒ）が完成する。After the molding, the center part of the secondary rim spare body (R2) removed from the eccentric mold (16) is subsequently press punched to a size larger than the center hole (11), resulting in a convex piece ( A mounting flange (25) for a wheel disc with an opening profile in which alternating alternating grooves (23) and notches (24)
At the same time, the insertion holes (27) of the wheel disc mounting poles (26) are also opened in each of the convex pieces (23), thereby completing the rear rim (R).
そのリヤーリム（Ｒ）は第４〜６図のように、取付フラ
ンジ（２５）においてフロントリム（Ｆ）の対応する取
付フランジ（２８）と溶接一体化されると共に、ホイー
ルディスク（Ｄ）の中心から放射状に派出するスポーク
部（２９）へ、上記ポル） （２６）とナツト（３０）
により組立一体化されて、所ｍ３ピース型の自動車用ホ
イールに仕上げられることとなる。その場合、リヤーリ
ム（Ｒ）に凹状のウェル部（２１）が設けられているた
め、ＦＦ車などに対してもそのブレーキ装置と衝当する
制約を受けることなく、ホイールを装着使用できること
になり、父上記取付フランジ（２５）は６片（２３）と
凹欠（２４）との交互に変化する開口輪郭形状に打抜き
形成されているので、ホイールディスク（Ｄ）のスポー
ク部（２９）を極めて長く看取させることができ、外観
デザイン上の興趣変化を与え得るのである。As shown in Figures 4 to 6, the rear rim (R) is welded and integrated with the corresponding mounting flange (28) of the front rim (F) at the mounting flange (25), and from the center of the wheel disc (D). To the spokes (29) that radiate out, the above Pol) (26) and Natsuto (30)
The parts are assembled and integrated into a three-piece automobile wheel. In that case, since the rear rim (R) is provided with a concave well part (21), the wheel can be mounted and used on front-wheel drive cars without being constrained by collision with the brake equipment. The above mounting flange (25) is punched to have an opening contour shape that changes alternately with six pieces (23) and concave notches (24), so the spoke part (29) of the wheel disc (D) can be made extremely long. It can be visually recognized and can add interest to the exterior design.
〈発明の効果〉
以上のように、本発明に係る自動車用ホイールのリヤー
リム製造法によれば、軽合金素材のブランクをプレス打
抜き加工して、一定な直径寸法の円板（１２）を作成用
意し、
先づ、その円板（１２）を１次成形用金型（１３）の回
転中心部に取付けた上、その金型（１３）を回転させ乍
ら倣いロール（１５）によりスピニング加工して、上記
円板（１２）を断面ほぼコ字型に折り曲げると共に、そ
の円周面を粗成形して１次リム予備体（Ｒ１）とし、
次いで、その１次リム予備体（Ｒ１）を１次成形用金型
（１３）から取りはずして、２次成形用偏心金型（１６
）へその成形後取りはずせる偏心状態に付け替えた上、
その金型（１６）を偏心回転させ乍ら倣いロール（１８
）により再度スピニング加工して、上記１次リム予備体
（Ｒ１）の円周面を目的の最終断面形状に仕上げ成形す
ることにより、その円周面に凹状ウェル部（２１）を備
えた２次リム予備体（Ｒ２）とし、その後、金型（１６
）から取りはずした２次リム予備体（Ｒ２）の中心部を
大きくプレス打抜き加工して、６片（２３）と凹欠（２
４）とが交互に変化する開口輪郭形状のホイールディス
ク用取付フランジ（２５）を形成すると一挙同時に、
その取付フランジ（２５）の各６片（２３）に、ホイー
ルディスク取付け用ボルト（２６）の挿通孔（２７）も
開口させるようになっているため、冒頭に述べた従来技
術の問題点を確実に解消でき、高品質のりャーリム製品
を容易に量産できる効果がある。<Effects of the Invention> As described above, according to the method for manufacturing the rear rim of an automobile wheel according to the present invention, a blank of a light alloy material is press punched to prepare a disc (12) with a constant diameter. First, the disk (12) is attached to the rotational center of the primary forming mold (13), and while the mold (13) is rotated, it is spun with a copying roll (15). Then, the disk (12) is bent into a substantially U-shaped cross section, and its circumferential surface is roughly formed to obtain a primary rim preliminary body (R1), and then the primary rim preliminary body (R1) is Remove it from the secondary molding mold (13) and remove it from the secondary molding mold (16).
)After the navel was formed, it was replaced with an eccentric state that could be removed,
While eccentrically rotating the mold (16), the copying roll (18)
), the circumferential surface of the primary rim preparatory body (R1) is finished formed into the desired final cross-sectional shape, thereby forming a secondary rim having a concave well portion (21) on the circumferential surface. The rim spare body (R2) is made, and then the mold (16
) The central part of the secondary rim spare body (R2) removed from
4) When forming the wheel disc mounting flange (25) with an opening profile that alternates between Since the insertion hole (27) is also opened, the problems of the prior art described at the beginning can be reliably solved, and high-quality glue rim products can be easily mass-produced.
又、目的とする最終断面形状に塑性変形させた２次リム
予備体（Ｒ２）を、その後引き続きプレス打抜き加工し
て、その中心部に６片（２３）と凹欠（２４）とが交互
に変化する開口輪郭形状のホイールディスク用取付フラ
ンジ（２５）を開設すると同時に、その各６片（２３）
にホイールディスク取付け用ボルト（２６）の挿通孔（
２７）も穿孔しているため、このようなリヤーリム（Ｒ
）から組立一体化される自動車用ホイールとして、その
外観デザインを著しく独創化できる効果もあり、実益大
と言える。In addition, the secondary rim spare body (R2) that has been plastically deformed into the desired final cross-sectional shape is then subsequently press punched to form six pieces (23) and recesses (24) alternately in the center. At the same time as opening a mounting flange (25) for a wheel disc with a changing opening contour shape, each of its six pieces (23)
Insert the wheel disc mounting bolt (26) into the insertion hole (
27) is also perforated, so this kind of rear rim (R
), it can be said to be of great practical benefit as it has the effect of making the exterior design significantly more original as an automobile wheel that is assembled and integrated.
第１図は円板の加工状態を示す正面図、第２図（１）（
Ｉｔ）（ｍ）はその円板に対するスピニング加工の作用
過程を示す説明図、第３図はホイールディスク用取付フ
ランジの加工状態を示す正面図、第４．５図はりャーリ
ムの使用によるホイールの組立状態を示す正面図と背面
図、第６図は第４図の６−６線断面図である。
（１１）・・・・・センタ一孔
（１２）・・・・・円板
（１３）・・・・・１次成形用金型
（１５） （１８） ・・・倣いロール（１６）・・
・・・２次成形用偏心金型（２１）・・・・・凹状ウェ
ル部
（２３）・・・・・６片
（２４）・・・・・凹欠
（２５）・・・・・取付フランジ
（２６）・・・・・ボルト
（２７）・・・・・挿通孔
（Ｒ１） （Ｒ２） ・・・リム予備体第１図
第３図Figure 1 is a front view showing the processing state of the disk, Figure 2 (1) (
It) (m) is an explanatory diagram showing the working process of spinning processing on the disc, Fig. 3 is a front view showing the processing state of the mounting flange for the wheel disc, Fig. 4.5 Assembling the wheel by using the rim A front view and a rear view showing the state, and FIG. 6 is a sectional view taken along the line 6-6 in FIG. 4. (11)... Center hole (12)... Disc (13)... Primary forming mold (15) (18)... Copying roll (16)...・
... Eccentric mold for secondary molding (21) ... Concave well part (23) ... 6 pieces (24) ... Concave notch (25) ... Installation Flange (26)...Bolt (27)...Through hole (R1) (R2)...Rim spare body Fig. 1 Fig. 3
Claims (1)
定な直径寸法の円板（１２）を作成用意し、先づ、その
円板（１２）を１次成形用金型（１３）の回転中心部に
取付けた上、その金型（１３）を回転させ乍ら倣いロー
ル（１５）によりスピニング加工して、上記円板（１２
）を断面ほぼコ字型に折り曲げると共に、その円周面を
粗成形して１次リム予備体（Ｒ１）とし、 次いで、その１次リム予備体（Ｒ１）を１次成形用金型
（１３）から取りはずして、２次成形用偏心金型（１６
）へその成形後取りはずせる偏心状態に付け替えた上、
その金型（１６）を偏心回転させ乍ら倣いロール（１８
）により再度スピニング加工して、上記１次リム予備体
（Ｒ１）の円周面を目的の最終断面形状に仕上げ成形す
ることにより、その円周面に凹状ウェル部（２１）を備
えた２次リム予備体（Ｒ２）とし、 その後、金型（１６）から取りはずした２次リム予備体
（Ｒ２）の中心部を大きくプレス打抜き加工して、凸片
（２３）と凹欠（２４）とが交互に変化する開口輪郭形
状のホイールディスク用取付フランジ（２５）を形成す
ると一挙同時に、 その取付フランジ（２５）の各凸片（２３）に、ホイー
ルディスク取付け用ボルト（２６）の挿通孔（２７）も
開口させることを特徴とする自動車用ホイールにおける
リヤーリムの製造法。[Claims] 1. A blank of a light alloy material is press punched to prepare a disc (12) with a constant diameter, and the disc (12) is first formed into a mold for primary forming. The disc (12) is attached to the center of rotation of the mold (13), and spun with a copying roll (15) while rotating the mold (13).
) is bent into a substantially U-shaped cross section and its circumferential surface is roughly formed to obtain a primary rim preliminary body (R1), and then the primary rim preliminary body (R1) is placed in a primary forming mold (13 ) and remove it from the eccentric mold for secondary molding (16
)After the navel was formed, it was replaced with an eccentric state that could be removed,
While eccentrically rotating the mold (16), the copying roll (18)
), the circumferential surface of the primary rim preparatory body (R1) is finished formed into the desired final cross-sectional shape, thereby forming a secondary rim having a concave well portion (21) on the circumferential surface. The secondary rim spare body (R2) was then removed from the mold (16), and the central part of the secondary rim spare body (R2) was punched out using a large press to form the convex piece (23) and the concave notch (24). Once the wheel disc mounting flange (25) with the alternating opening profile is formed, each convex piece (23) of the mounting flange (25) is provided with an insertion hole (27) for the wheel disc mounting bolt (26). ) is also opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14256887A JPS63309339A (en) | 1987-06-08 | 1987-06-08 | Production of rear rim in wheel for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14256887A JPS63309339A (en) | 1987-06-08 | 1987-06-08 | Production of rear rim in wheel for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63309339A true JPS63309339A (en) | 1988-12-16 |
| JPH0455766B2 JPH0455766B2 (en) | 1992-09-04 |
Family
ID=15318351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14256887A Granted JPS63309339A (en) | 1987-06-08 | 1987-06-08 | Production of rear rim in wheel for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63309339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7124609B1 (en) * | 2002-09-04 | 2006-10-24 | Jeffrey Allen Hermanson | Spin forming of HVAC duct reducers |
-
1987
- 1987-06-08 JP JP14256887A patent/JPS63309339A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7124609B1 (en) * | 2002-09-04 | 2006-10-24 | Jeffrey Allen Hermanson | Spin forming of HVAC duct reducers |
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| Publication number | Publication date |
|---|---|
| JPH0455766B2 (en) | 1992-09-04 |
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