JPS6257732A - Knuckle forging method - Google Patents
Knuckle forging methodInfo
- Publication number
- JPS6257732A JPS6257732A JP19380885A JP19380885A JPS6257732A JP S6257732 A JPS6257732 A JP S6257732A JP 19380885 A JP19380885 A JP 19380885A JP 19380885 A JP19380885 A JP 19380885A JP S6257732 A JPS6257732 A JP S6257732A
- Authority
- JP
- Japan
- Prior art keywords
- knuckle
- arm
- mold
- boss
- head
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/766—Connecting rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、自動車前輪用のナックルを鍛造により製造す
る方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a knuckle for a front wheel of an automobile by forging.
（従来の技ＷＩ）
ナックルは、センターボスからアームやブラケットが幾
つか突出する複雑な構造をもつものであるから、鋳造に
より製造したり、ハンマリング鍛造で徐々に形状打出し
をして仕上げるか、仕上げ鍛造のみを金型で行うかして
いた。(Conventional Technique WI) Since the knuckle has a complex structure with several arms and brackets protruding from the center boss, it is best to manufacture it by casting or gradually hammer out the shape using hammer forging. In the past, only finish forging was performed using dies.
（発明が解決しようする問題点〕
鋳造により製造する場合は、十分な強度をもたせると重
量が大となって自動車の軽量化・の上から好ましくはな
く、ハンマリングによる形状打出しは非能率であり、量
産には適しなかった。(Problems to be Solved by the Invention) When manufacturing by casting, if sufficient strength is provided, the weight becomes large, which is not desirable from the viewpoint of reducing the weight of the automobile, and shaping by hammering is inefficient. However, it was not suitable for mass production.
（問題点を解決するための手段］
本発明は、棒材の一部をローラ圧延又は鍛造によって長
手方向に伸長して頭部と荒鍛造したナックルアームとを
成形する工程、頭部の一側面を金型の内側面で支持して
変形を規制しながら上下方向に加圧して金型の他側面に
設けた軸出口溝からタイロッドアームを横方向に伸長さ
せる工程、頭部を上下二分割の金型で加圧してセンター
ゴス、キャリパプラケット、キングピンボスを同時に成
形する工程、ナックルアームの先端のアームエンドボス
の形状及びタイロッドアームの形状を完成品形状に近づ
ける中仕上げ工程、上下二分割金型で全体を加圧する仕
上げ”工程、パリを除去するトリミング工程及び金型で
曲げを行うペンド工程とからなることを特徴とする手段
によって前記問題点を解決した。(Means for Solving the Problems) The present invention provides a process of forming a head and a roughly forged knuckle arm by extending a part of a bar material in the longitudinal direction by roller rolling or forging, and one side of the head. The process involves supporting the tie rod arm on the inside surface of the mold and applying pressure in the vertical direction while restricting deformation to extend the tie rod arm laterally from the shaft exit groove provided on the other side of the mold. A process in which the center goss, caliper racket, and kingpin boss are simultaneously formed by applying pressure with a mold, a semi-finishing process in which the shape of the arm end boss at the tip of the knuckle arm and the shape of the tie rod arm is brought close to the finished product shape, and a mold that is divided into upper and lower halves. The above-mentioned problems have been solved by a means characterized by comprising a finishing process in which the entire body is pressurized, a trimming process in which pars are removed, and a bending process in which bending is performed using a mold.
（実施例） 本発明の実施例を以下図面と共に説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
第１図（ａ）、（ｂ）はナックルの素材である棒材（１
）であり、該棒材（１）は、図示の角材でもよいし九棒
材であってもよい。この棒材（１）を第２図及び第３図
に示す形状にするため、一部をローラの往復回転による
圧延又はハンマリング鍛造によって長手方向に伸長して
ナックルアームとなる部分を荒鍛造し、これによって頭
部（２）とナックルアーム（３）とを成形する。ローラ
によって圧延する場合は、第４図のような普通形式のロ
ーラｔ４１、（４１が用いられる。Figures 1 (a) and (b) show the bar material (1
), and the bar (1) may be a square bar as shown in the figure or a nine bar. In order to make this bar material (1) into the shape shown in Figs. 2 and 3, a part of it is rolled by reciprocating roller rotation or hammered forged to extend in the longitudinal direction and the part that becomes the knuckle arm is roughly forged. , thereby forming the head (2) and knuckle arm (3). When rolling with rollers, ordinary type rollers t41, (41) as shown in FIG. 4 are used.
次に第５図及び第６図に示すように、頭部（２）からタ
イロッドアーム（５）を軸出しする。これに用いる金型
は、＠７図、第８図に示すものであり、下型（６）、上
型（７）からなり、それぞれの凹部ｔ８）、（９）に軸
出し溝（１（１、Ｑυが連設され、該溝Ｕ〔、ａυに向
けて案内面０２１０階が突設され、下型（６）の反対側
の面α４には凸面α９が設けられる。上型（７）を矢印
Ｆの方向に圧下すると、案内面α２、α３に案内され軸
出し溝Ｑ（１、αυからタイロッドアーム（５）が伸長
するが、下型の該溝の反対側の内側面ａ４は頭部（２）
の変形を規制する規制面となるため、？方向の圧下にか
かわらず、横方向の押出し作用力有効に作用しタイロッ
ドアーム（５）の基トする部分が形成され、上型（７）
を上昇することにより素材（１）を下型から容易に取出
すことができる。Next, as shown in FIGS. 5 and 6, the tie rod arm (5) is pivoted from the head (2). The mold used for this purpose is shown in @Fig. 1. Qυ are connected, a guide surface 0210 is protruded toward the groove U[, aυ, and a convex surface α9 is provided on the opposite surface α4 of the lower mold (6). Upper mold (7) When the tie rod arm (5) is rolled down in the direction of arrow F, the tie rod arm (5) is guided by the guide surfaces α2 and α3 and extends from the centering groove Q (1, αυ). Part (2)
Because it becomes a regulatory surface that regulates the deformation of ? Regardless of the direction of reduction, the lateral extrusion force acts effectively to form the base portion of the tie rod arm (5), and the upper mold (7)
By raising the material (1), the material (1) can be easily taken out from the lower mold.
内側面ａ４に設けた凸ｌｆＩα９によって頭部（２）中
央の肉を減少させて以後のくぼみ形成加工を容易にする
。The convex lfIα9 provided on the inner surface a4 reduces the thickness at the center of the head (2) to facilitate the subsequent depression forming process.
次に、別の上下二分割の金型によって頭部（２）を押圧
して第９図、第１０図に示すように、センターボス（１
６１，ｉボスαｅの中央のくぼみαＤ１ キャリパブラ
ケット０秒、αｅ１ キングピンボスα９を形成し、同
時にナックルアーム（３）、タイロッドアーム（５）の
中間的成形を同時に行う。Next, the head (2) is pressed using another upper and lower two-part mold to form the center boss (1) as shown in Figures 9 and 10.
61, i Form recess αD1 in the center of boss αe Caliper bracket 0 seconds, αe1 King pin boss α9, and simultaneously perform intermediate molding of the knuckle arm (3) and tie rod arm (5).
次いで、第１１図、第１２図に示すように、−Ｊ−ツク
ルアーム（３）の先端のアームエンドゴス■、タイロッ
ドアームａ！１９、キャリパプラケットａ＆、０＆の形
状を完成品形状に近づける中仕上げ加工を行う。Next, as shown in FIGS. 11 and 12, the arm end goss (■) at the tip of the -J-Tsuru arm (3), and the tie rod arm a! 19. Perform semi-finishing to bring the shape of the caliper rackets a&, 0& closer to the shape of the finished product.
そして、上下二分割の金型で全体の平面的な仕上げ加工
を行い同時にナックルアームの中間部上下に溝（２１）
、（社）を形成する。Then, the entire plane is finished using a mold that is divided into upper and lower halves, and at the same time grooves (21) are formed on the upper and lower middle part of the knuckle arm.
, to form a company.
この仕上げ成形によって生じたパリを適宜のトリミング
手段によって除去してから、ナックルアーム（３）及び
タイロッドアーム（５）を所望形状に曲げるペンド工程
を施す。After removing the fringes produced by this finishing molding by appropriate trimming means, a bending process is performed to bend the knuckle arm (3) and tie rod arm (5) into a desired shape.
第１３図は、ナックルアーム（３）のペンド工程を示す
説明図で、下型＠は、その一部として上下に移動できる
移動型ｃ！４）を備えており、同図（ａ）に示すように
、ナックルのセンターボスαｅを移動型ｆ２４）と上型
（ハ）の突出部（至）とで挾持し、ナックルアーム（３
）の端部寄りの中間部分を下型（ハ）の山形の頂部に載
置し、移動型−と上型（ハ）を−緒に下降させると、ナ
ックルアーム（３）は、同図（ｂ） ニ示すように、セ
ンターボスＯｅ附近では上向きに曲げられ、端部寄りの
所では山形の弧状に曲げられ、同図（ｏ）に至りアーム
エンドボス（イ）を含めてナックルアームの曲げが完了
すると共に、上下金型により全体の仕上げ成形すなわち
整形が行われて第１４図に示す形状になり全工程が完了
する。タイロッドアーム（５）も同様手段で同時又は別
個に曲げ加工される。なお、センターボスαｅに点線で
示されたものは切削加工された開口である。FIG. 13 is an explanatory diagram showing the pend process of the knuckle arm (3), in which the lower mold @ is a movable mold c! that can move up and down as part of it. 4), and as shown in the same figure (a), the center boss αe of the knuckle is held between the movable mold f24) and the protrusion (to) of the upper mold (c), and the knuckle arm (3)
) is placed on the top of the chevron of the lower mold (c), and the movable mold and upper mold (c) are lowered together, the knuckle arm (3) becomes b) As shown in Figure 2, it is bent upward near the center boss Oe, and bent into a chevron-shaped arc near the end, and the knuckle arm is bent, including the arm end boss (A), until it reaches Figure (o). Upon completion, the entire process is finished molded, ie, shaped, by the upper and lower molds, resulting in the shape shown in FIG. 14, and the entire process is completed. The tie rod arm (5) is also bent simultaneously or separately by similar means. Note that what is indicated by a dotted line on the center boss αe is an opening that has been cut.
（発明の効果）
本発明は、ナックルアーム、タイロッドアームノ類に成
形し、次いでセンターボス、キャリパプラケット、キン
グピンを同時に成形する工程が、体積変化量の多い主た
る成形工程であって、後の工程になるほど変化量が少く
成形ずみの部分への悪影響がないため、成形作業を容易
に行うことができる。そしてこれらの工程を判別に行う
ため、その都度必要とする量だけ変形させればよいから
、各部の成形を同時に行うものに比ベバリの量を少くす
ることができ、したがって材料費を安価にすることがで
きる。(Effects of the Invention) The present invention provides that the process of forming the knuckle arm, tie rod arm, etc., and then simultaneously forming the center boss, caliper racket, and king pin is the main forming process that involves a large amount of volume change, and the subsequent process The larger the change, the smaller the amount of change and no adverse effect on the molded part, making the molding work easier. Since these processes are carried out separately, it is only necessary to deform the required amount each time, so the amount of deformation can be reduced compared to when each part is molded at the same time, thus reducing material costs. be able to.
第１図（ａ）、（ｂ）は本発明の実施に用いる素材の正
面図及び側面図、第２図、第３図はナックルアームを荒
鍛造した素材の正面図及び側面図、第４図はローラ圧延
を示す正面図、第５図、第６図はタイロッドアームを軸
出しした後の平面図及び正面図、第７図はタイロッドア
ーム軸出し用の金型の断面図、第８図は第７図の■−■
線断面図、笛９図、第１０図はセンターボス及びその周
囲から伸長する部分を成形した後の平面図及び正面図、
第１１図、第１２図は中仕上げ加工及び仕上げ加工を施
した後の平面図及び正面図、第１３図（ａ）、（ｂ八（
ｃ）は曲げ加工の説明図、第１４図は製品の正面図であ
る。図中、（１）・・・素材、（２１・・・頭部、（３
）・・・ナックルアーム、（５）・・・タイロッドアー
ム、（ＩＱ・・・センターボス、０８１・・・キャリパ
ブラケット、α４・・・キングピンボス。
外２名
第１１図
第１３図Figures 1 (a) and (b) are front and side views of the material used to carry out the present invention, Figures 2 and 3 are front and side views of the raw material for which the knuckle arm is roughly forged, and Figure 4. is a front view showing roller rolling, Figures 5 and 6 are a plan view and front view after centering the tie rod arm, Figure 7 is a sectional view of the mold for centering the tie rod arm, and Figure 8 is a ■−■ in Figure 7
The line sectional view, the whistle figure 9, and the figure 10 are a plan view and a front view after forming the center boss and the parts extending from its surroundings,
Figures 11 and 12 are plan and front views after semi-finishing and finishing, and Figures 13 (a) and (b8).
c) is an explanatory diagram of the bending process, and FIG. 14 is a front view of the product. In the figure, (1)...Material, (21...Head, (3
)...Knuckle arm, (5)...Tie rod arm, (IQ...Center boss, 081...Caliper bracket, α4...King pin boss. 2 other people Figure 11 Figure 13
Claims (1)
長して頭部と荒鍛造したナックルアームとを成形する工
程、頭部の一側面を金型の内側面で支持して変形を規制
しながら上下方向に加圧して金型の他側面に設けた軸出
し溝からタイロッドアームを横方向に伸長させる工程、
頭部を上下二分割の金型で加圧してセンターボス、キヤ
リパブラケツト、キングピンボスを同時に成形する工程
、ナックルアームの先端のアームエンドボスの形状及び
タイロッドアームの形状を完成品形状に近づける中仕上
げ工程、上下二分割金型で全体を加圧する仕上げ工程、
バリを除去するトリミング工程及び金型で曲げを行うベ
ンド工程とからなることを特徴とするナックル鍛造方法
。A process in which a part of the bar is stretched in the longitudinal direction by roller rolling or forging to form the head and a roughly forged knuckle arm, and one side of the head is supported on the inner side of the mold to prevent deformation. The process of extending the tie rod arm laterally from the centering groove provided on the other side of the mold by applying pressure in the vertical direction while regulating it;
The process of simultaneously molding the center boss, caliper bracket, and king pin boss by pressurizing the head with a mold that is divided into upper and lower halves, and intermediate finishing to bring the shape of the arm end boss at the tip of the knuckle arm and the shape of the tie rod arm closer to the final product shape. process, finishing process in which the entire body is pressurized using a mold that is divided into upper and lower halves,
A knuckle forging method comprising a trimming step for removing burrs and a bending step for bending with a die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19380885A JPS6257732A (en) | 1985-09-04 | 1985-09-04 | Knuckle forging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19380885A JPS6257732A (en) | 1985-09-04 | 1985-09-04 | Knuckle forging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6257732A true JPS6257732A (en) | 1987-03-13 |
| JPH0259015B2 JPH0259015B2 (en) | 1990-12-11 |
Family
ID=16314108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19380885A Granted JPS6257732A (en) | 1985-09-04 | 1985-09-04 | Knuckle forging method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6257732A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4991562A (en) * | 1988-09-28 | 1991-02-12 | Aisin Seiki Kabushiki Kaisha | Mechanical supercharger system |
| EP1652600A1 (en) * | 2004-10-29 | 2006-05-03 | Peugeot Citroën Automobiles S.A. | Method of hot rolling and stamping and shaped workpiece obtained by said method |
-
1985
- 1985-09-04 JP JP19380885A patent/JPS6257732A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4991562A (en) * | 1988-09-28 | 1991-02-12 | Aisin Seiki Kabushiki Kaisha | Mechanical supercharger system |
| EP1652600A1 (en) * | 2004-10-29 | 2006-05-03 | Peugeot Citroën Automobiles S.A. | Method of hot rolling and stamping and shaped workpiece obtained by said method |
| FR2877245A1 (en) * | 2004-10-29 | 2006-05-05 | Peugeot Citroen Automobiles Sa | METHOD FOR ROLLING AND HOT STAMPING AND PROFILE PARTS OBTAINED BY SUCH A METHOD |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0259015B2 (en) | 1990-12-11 |
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