JP2679774B2 - Axle case press molding method - Google Patents
Axle case press molding methodInfo
- Publication number
- JP2679774B2 JP2679774B2 JP1074279A JP7427989A JP2679774B2 JP 2679774 B2 JP2679774 B2 JP 2679774B2 JP 1074279 A JP1074279 A JP 1074279A JP 7427989 A JP7427989 A JP 7427989A JP 2679774 B2 JP2679774 B2 JP 2679774B2
- Authority
- JP
- Japan
- Prior art keywords
- axle case
- shape
- groove
- axle
- press molding
- 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.)
- Expired - Lifetime
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
- Forging (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明はアクスルケースのプレス成形法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a method for press-molding an axle case.
［従来技術］ 従来のアクスルケースは、第１図に示す様な、ラフブ
ランクした素板Ａをフォーム成形Ｂし、後工程でガスト
リム又は機械加工により突合せ溶接部の開先Ｃを加工し
ていたが、ガストリム、機械加工における時間的工数の
低減、又材料歩溜りの向上を目的として第２図に示すよ
うな、第１工程でアクスル形状成形とリストライク及び
開先成形を同時に行なわせるものや、第３図乃至第５図
に示すように、ブランクした材料Ａ′を第１工程目でア
クスルの形状に成形Ｂ′し、第２工程でフランジ端部を
加圧し、開先成形Ｃ′を行なう工法が現在行われてい
る。[Prior Art] In a conventional axle case, a rough blank blank A as shown in FIG. 1 is formed into a form B, and a groove C of a butt weld portion is processed by gas trimming or machining in a subsequent process. However, for the purpose of reducing the time required for gas trimming, machining, and improving the material yield, as shown in FIG. 2, it is possible to simultaneously perform axle shape molding and restrike and groove molding in the first step. As shown in FIGS. 3 to 5, the blank material A'is formed into a shape of an axle B'in the first step, and the flange end is pressed in the second step to form a groove C '. The construction method to be carried out is currently carried out.
［発明が解決しようとする問題点］ 前記従来の第１工程でアクスル形状成形と、リストラ
イク及び開先成形を同時に行なう前者の工法では、金型
構造が複雑になり、メンテナンスが大変であり、経費が
高くなる。また後者のアクスル形状に成形し、フランジ
端部を加圧し開先成形を行なう場合の工法においても、
第1,2工程目にアクスルの形状を成形するための各車型
ごとの専用型が２型必要となるため、従ってやはり経費
が高くなる等の問題がある。[Problems to be Solved by the Invention] In the former method of simultaneously performing the axle shape molding in the first step and the wrist-like and groove molding at the same time in the conventional first step, the mold structure becomes complicated and maintenance is difficult, Expenses increase. Also, in the latter method of forming into an axle shape and pressing the flange end to perform groove forming,
In the first and second steps, two dedicated molds are required for each vehicle mold to mold the shape of the axle. Therefore, there is a problem that the cost also increases.
［問題点を解決するための手段］ 本発明は斯様な実情に鑑み、この問題に対処するた
め、第１工程では長手方向にストレートで、かつ断面の
幅、曲げアールが一定になるように成形し、第２工程で
アクスル形状になるように成形すると共に突合せ溶接部
の開先を成形する事を特徴とするアクスルケースのプレ
ス成形法で、第１工程目のフォーム型の共通化を図り、
金型構造の単純化と経費の安価を目的として提供するも
のである。[Means for Solving the Problems] In view of such circumstances, the present invention addresses this problem by ensuring that the first step is straight in the longitudinal direction and that the width of the cross section and the bending radius are constant. The press molding method for the axle case is characterized by molding and forming the groove of the butt weld at the same time as forming the axle shape in the second step. ,
It is provided for the purpose of simplifying the mold structure and reducing the cost.
［実 施 例］ 次に本発明に係るアクスルケースのプレス成形法によ
る実施例を第６図、第７図の図面に基いて説明する。[Examples] Next, an example of an axle case according to the present invention by a press forming method will be described with reference to the drawings of FIGS. 6 and 7.
１はアクスルケース溶接組付け品で、ブランク型を用
いて素材を剪断ａし、このブランク材を第１工程のフォ
ーム型で断面形状一定のダイ２及びパンチ３によりチャ
ンネル状ｂに成形し、次の第２工程ではアクスルケース
形状ｃに成形すると共に突合せ溶接部の開先ｄを成形
し、次に加工品２個の開先部を対向して溶接してアクス
ルケース１を組付けるものである。尚前記アクスルケー
ス全体のウエブ幅が他の車型と大きく異なる場合はパン
チ及びダイをブロックを構造として、ブロック交換すれ
ばよいようにする。Reference numeral 1 denotes an axle case welded assembly, in which a blank is used to shear a material, and this blank material is formed into a channel shape b by a die 2 and a punch 3 having a constant cross-sectional shape by a foam mold of the first step, and then In the second step, the axle case 1 is assembled into the axle case shape c and the groove d of the butt welded portion is formed, and then the groove portions of the two processed products are opposed to each other and welded. . If the web width of the entire axle case is significantly different from that of the other vehicle types, the punch and die have a block structure, and the blocks may be exchanged.
［作用］ 素材をブランク型で剪断ａし、このブランク材ａを第
１工程のフォーム型で断面形状一定のダイ２及びパンチ
３によりチャンネル状ｂに成形し、更に第２工程でアク
スルケース形状ｃ並びに突合せ溶接部の開先ｄを成形
し、このアクスルケース形状ｃに成形された２個の加工
物の開先部を対向させて溶接を行ってアクスルケース１
として組立る。[Operation] The material is sheared a with a blank mold, and this blank material a is molded with the foam mold of the first step into the channel shape b by the die 2 and the punch 3 having a constant cross-sectional shape, and further, the axle case shape c in the second step. In addition, the groove d of the butt weld portion is formed, and the groove portions of the two workpieces formed in the axle case shape c are opposed to each other to perform welding, and the axle case 1
Assemble as.
この時第１工程の金型は車幅の最も長い製品に合わせ
て製作しておけば、車幅の短い製品に対してはブランク
で調整するだけで良い。At this time, if the mold of the first step is manufactured according to the product having the longest vehicle width, it is sufficient to adjust the blank for the product having the shortest vehicle width.
また製品の長手に沿う断面形状（曲げアール）の変化
は第２工程目の成形金型で対応できるようにする。Further, the change of the cross-sectional shape (bending radius) along the length of the product can be dealt with by the molding die of the second step.
従って第１工程の金型は共通化が図れ、また金型構造
は単純で経費も安くなる。更にメンテナンス費用も安く
なる。Therefore, the molds in the first step can be standardized, and the mold structure is simple and the cost is low. Furthermore, maintenance costs will be lower.
［効果］ 本発明は上述のように、アクスルケースのプレス成形
において、第１工程では長手方向にストレートでかつ断
面の幅、曲げアールが一定になるように成形し、第２工
程で、アクスルケース最終形状になるように成形すると
共に突合せ溶接部の開先を成形することを特徴とするア
クスルケースのプレス成形法であり、第１工程のフォー
ム型は断面形状一定のダイ及びパンチからなるの単純な
金型構造とすることにより車幅アクスルケース全長違い
の製品に対しフォーム型の共通化が図られ、しかも前記
した金型が単純であるため金型費用及びメンテナンス費
用は安くなる。[Effects] As described above, in the present invention, in the press molding of the axle case, the first step is straight in the longitudinal direction and the cross-section width and bending radius are constant, and the second step is the axle case. This is a press molding method for an axle case, which is characterized in that the groove is formed into a final shape and the groove of the butt weld is formed. The foam mold in the first step consists of a die and a punch with a constant cross-sectional shape. By adopting a different mold structure, the foam mold can be standardized for products having different vehicle width axle cases and the mold cost and maintenance cost can be reduced because the mold is simple.
またアクスルケースの形状が長手に沿って一部ウエブ
幅が変化する形状のものに対しても第１工程のフォーム
型は断面一定で成形して、第２工程のリストライク時に
必要とするアクスルケースの製品形状に成形できる。Further, even if the shape of the axle case is such that the width of the web partly changes along the longitudinal direction, the foam die of the first step is molded with a constant cross section, and the axle case required at the time of the re-strike of the second step. It can be molded into any product shape.
図面は第１図は従来のアクスルケース成形工程の斜視
図、第２図は左半分は第１工程によるＵ曲げ成形右半分
は開先リストライクを示した正面図、第３図は別の従来
例のアクスルケースの成形工程の斜視図、第４図は第３
図の第１工程目のフォームの曲げ成形のダイとパンチの
正面図、第５図は第３図の第２工程目の開先リストライ
ク時の正面図、第６図、第７図は本発明のアクスルケー
スのプレス成形法を示し、第６図は成形工程の斜視図、
第７図は第１工程のフォーム型成形のダイ及びパンチの
関係を示す斜視図である。 １……アクスルケース、２……ダイ、３……パンチ、ａ
……ブランク材、ｂ……チャンネル状、ｃ……アクスル
ケース形状、ｄ……開先部The drawings are: FIG. 1 is a perspective view of a conventional axle case molding process, FIG. 2 is a left half front view showing a U-bend forming by the first process, a right half front view showing a groove wrist-like, and FIG. FIG. 4 is a perspective view of the example axle case forming process.
The front view of the die and punch for bending the foam in the first step of the figure, FIG. 5 is the front view of the groove list-like of the second step of FIG. 3, FIG. 6 and FIG. The press molding method of the axle case of the invention is shown, and FIG. 6 is a perspective view of the molding process,
FIG. 7 is a perspective view showing a relationship between a die and a punch in the foam molding in the first step. 1 ... Axle case, 2 ... Die, 3 ... Punch, a
…… Blank material, b …… Channel shape, c …… Axle case shape, d …… Groove
Claims (1)
１工程では長手方向にストレートでかつ断面の幅、曲げ
アールが一定になるように成形し、第２工程で、アクス
ルケース形状となるように成形すると共に、突合せ溶接
部の開先を成形することを特徴とするアクスルケースの
プレス成形法。1. In press molding of an axle case, in the first step, it is formed so as to be straight in the longitudinal direction and has a constant cross-sectional width and bending radius, and in the second step, it is formed into an axle case shape. A press forming method for an axle case, characterized in that the groove of the butt weld is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1074279A JP2679774B2 (en) | 1989-03-27 | 1989-03-27 | Axle case press molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1074279A JP2679774B2 (en) | 1989-03-27 | 1989-03-27 | Axle case press molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02255228A JPH02255228A (en) | 1990-10-16 |
| JP2679774B2 true JP2679774B2 (en) | 1997-11-19 |
Family
ID=13542514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1074279A Expired - Lifetime JP2679774B2 (en) | 1989-03-27 | 1989-03-27 | Axle case press molding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2679774B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407429A (en) * | 2011-10-19 | 2012-04-11 | 青岛顺联汽车部件制造有限公司 | Method of manufacturing car axle case and car axle case manufactured by same |
| CN115365359B (en) * | 2022-08-31 | 2024-05-10 | 湖北万柯汽车零部件有限公司 | Full-automatic stamping production line for automobile axle housing |
-
1989
- 1989-03-27 JP JP1074279A patent/JP2679774B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02255228A (en) | 1990-10-16 |
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