JPS6222699B2 - - Google Patents
Info
- Publication number
- JPS6222699B2 JPS6222699B2 JP58102123A JP10212383A JPS6222699B2 JP S6222699 B2 JPS6222699 B2 JP S6222699B2 JP 58102123 A JP58102123 A JP 58102123A JP 10212383 A JP10212383 A JP 10212383A JP S6222699 B2 JPS6222699 B2 JP S6222699B2
- Authority
- JP
- Japan
- Prior art keywords
- cap body
- hollow cap
- die
- hollow
- punch
- 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
Links
- 239000011265 semifinished product Substances 0.000 claims description 11
- 238000005242 forging Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 210000001508 eye Anatomy 0.000 description 10
- 210000003128 head Anatomy 0.000 description 10
- 239000000047 product Substances 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
-
- 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
- B21K1/06—Making machine elements axles or shafts
-
- 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
- B21K1/14—Making machine elements fittings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Forging (AREA)
Description
【発明の詳細な説明】
この発明は自動車の燃料パイプやオイルパイプ
等の端部に取付けられるアイジヨイント（別名ア
イコネクター、俗名目玉、めがね）の半製品の製
造方法に関し、特に円柱片を切削することなく、
多段冷間圧造ダイス、圧造パンチ等を使用し、圧
延して形成するので、材料に無駄を生ずることな
く、迅速かつ確実に形成することができ、この結
果、完成品の製造を極めて容易にするもので、す
なわち金属製の円柱片を冷間圧造ダイスで取付け
るとともに穿孔用の圧造パンチで後方押出しを行
なつて中空帽体を形成し、前記中空帽体を次段階
の圧造ダイスへ取付けるとともに圧造パンチで帽
体頭部を凸弧面に形成し、さらに前記中空帽体の
開口端より管形成ピンを挿入するとともに次の圧
造ダイスにより前記中空帽体の途中へテーパー面
を形成し、しかも前記テーパー面へ連続して管部
を形成し、さらに最終の圧造ダイスへ前記中空帽
体を取付け、パンチダイスおよび段付ピンにより
前記中空帽体を中空球部および小径部、大径部を
有する管部とから成る半製品に形成することを特
徴とする製造方法である。[Detailed Description of the Invention] The present invention relates to a method for manufacturing a semi-finished product of an eye joint (also known as an eye connector, commonly known as an eyeball, or eyeglasses) that is attached to the end of an automobile fuel pipe or oil pipe, etc., and particularly relates to a method for manufacturing a semi-finished product of an eye joint (also known as an eye connector, commonly known as an eyepiece, or eyeglasses), which is attached to the end of an automobile fuel pipe, oil pipe, etc. Without,
Since it is formed by rolling using a multi-stage cold heading die, a heading punch, etc., it can be formed quickly and reliably without wasting material, making it extremely easy to manufacture the finished product. In other words, a metal cylindrical piece is attached with a cold heading die and extruded backwards with a forging punch for perforation to form a hollow cap body, and the hollow cap body is attached to the next stage of the forging die and the forging process is performed. The head of the cap body is formed into a convex arc surface using a punch, and a tube forming pin is inserted from the open end of the hollow cap body, and a tapered surface is formed in the middle of the hollow cap body using a next heading die. A tube portion is formed continuously on the tapered surface, and the hollow cap body is attached to a final heading die, and the hollow cap body is formed into a tube having a hollow sphere portion, a small diameter portion, and a large diameter portion using a punch die and a stepped pin. This manufacturing method is characterized by forming a semi-finished product consisting of parts.
従来より自動車の燃料パイプやオイルパイプ等
の端部には第２図および第６図Ｉで示すようなア
イジヨイントが使用されている。このアイジヨイ
ントは従来より第６図で示す方法により製造され
ている。 2. Description of the Related Art Eye joints as shown in FIG. 2 and FIG. 6I have been conventionally used at the ends of fuel pipes, oil pipes, etc. of automobiles. This eye joint has conventionally been manufactured by the method shown in FIG.
まず、第１次製造業者が成型により、鉄、アル
ミニウム等の金属をもつて頭部を球状となし、首
部を円柱状となした、いわゆる「むく」の半製品
金具ａを製し、次に第６図Ａで示すように第２次
加工業者が半製品ａを自動旋盤のチヤツクｂによ
り固定し、小径のドリルＣをもつて首部a′を穿孔
し（第６図Ｂ）、続いて大径のドリルC′をもつて
段付孔を形成し（第６図Ｃ）、次にチヤツクb′に
より金具ａの向きを変え（第６図Ｄ）、バイトｄ
をもつて球状部a″の片側面を切削し（第６図
Ｅ）、さらにドリルC″をもつて前記段付孔の延長
線と直交する目玉孔を穿ち（第６図Ｆ）、しかる
後、金具ａの向きを変え（第６図Ｇ）、バイトｄ
をもつて球状部a″の他側面を切削し、最後に中ぐ
りバイトd′をもつて目玉孔の周縁を切削してアイ
ジヨイントを形成している。なお、図中、ｅは受
軸である。前記従来法によると第２次加工での工
程が多く、多大の時間、労力、熟練を要するのは
勿論、材料に多くの無駄を生じ、製品の強度、精
度も低いものである。 First, the primary manufacturer produces a so-called "solid" semi-finished fitting a made of metal such as iron or aluminum with a spherical head and a cylindrical neck, and then As shown in Figure 6A, a secondary processor fixes the semi-finished product a with the chuck b of an automatic lathe, drills the neck a' with a small diameter drill C (Figure 6B), and then drills the neck a' with a small diameter drill C (Figure 6B). Form a stepped hole with drill C' of diameter (Fig. 6 C), then change the direction of fitting a with chuck b' (Fig. 6 D), and insert bit d.
Cut one side of the spherical part a'' using a drill (Fig. 6 E), and then use a drill C'' to drill a center hole perpendicular to the extension line of the stepped hole (Fig. 6 F). , change the direction of the metal fitting a (Fig. 6G), and insert the cutting tool d.
The other side of the spherical part a'' is cut using the spherical part a'', and finally the periphery of the eye hole is cut using the boring tool d' to form the eye joint. In the figure, e is the bearing shaft. According to the conventional method, there are many steps in the secondary processing, which requires a great deal of time, effort, and skill, and of course results in a lot of wasted material, and the strength and precision of the product are low.
なお、このアイジヨイントをダイカスト法によ
り製することも考えられるが、ダイカストによつ
たのでは製品が脆弱となり、特に自動車等の重要
保安部品として用を成さないものである。 It is also possible to manufacture this eye joint by die-casting, but die-casting would result in a fragile product and would be of no use as an important safety part, especially for automobiles.
この発明は前述の従来例の欠点を一挙に解消
し、しかも従来、「むく」の球状頭部と円柱から
成る金具を切削することなく中空にするのは不可
能とされていたのを可能にするもので、次に一実
施例の構成を図面に従つて詳細に説明する。ま
ず、切断手段を含む６ステーシヨンのパーツフオ
ーマー（全自動多段冷間圧造機）において直径20
mmの鉄コイル材を15.5mmの長さに切断する。切断
によつて得られた円柱片１ａを第４図Ａで示すよ
うに第１の冷間圧造ダイス２ａへ自動的に移送し
て取付けるとともに頭部１a′へノツクアウトピン
３ａを当接し、圧造パンチ４ａで加圧成形し、頭
部１a′へ円錐状のテーパー面を形成するとともに
極浅凹部５ａを形成する。このとき円柱片１ａの
直径は21.5mm、長さは13.5mmとなる。次に円柱片
１ａをノツクアウトピン３ａにより第１のダイス
２ａより押出し、第２の冷間圧造ダイス２ｂへ自
動的に取付け、頭部１a′へノツクアウトピン３ａ
を当接し、小径の圧造パンチ４ｂを押込み、後方
押出しを行なつて穿孔し、円柱片１ａを中空帽体
１ｂに形成する（第４図Ｂ）。このとき中空帽体
１ｂの外径は21.65mm、内径は16.5mm、長さは27
mm、大孔部５ｂの深さは23mmである。続いて中空
帽体１ｂを第３の圧造ダイス２ｃへ自動的に取付
けるとともに頭部１a′へ小径のノツクアウトピン
３ｂを当接し、前段階で形成された大孔部５ｂ
へ、先端を半球状に形成した圧造パンチ４ｃを押
込み、中空帽体１ｂの頭部１a′を凸弧面状に形成
する（第４図Ｃ）。このとき中空帽体１ｂの外径
は21.75mm、内径は16.4mm、長さは30mm、大孔部
５ｂの深さは27.5mmである。しかる後、管形成ピ
ン７ａが貫通し、しかも先端７a′が突出している
ノツクアウトスリーブ６ａをセツトした第４の圧
造ダイス２ｄ内へ、中空帽体１ｂを反転移送して
取付け、先端が凹弧面状の圧造パンチ４ｄで中空
帽体１ｂを押込み、中空帽体１ｂの途中へ円錐状
のテーパー面１b′を形成するとともに管部１b″を
形成する（第４図Ｄ）。このとき、中空帽体１ｂ
の長さは42mm、頭部1aの外径は21.8mm、内径は
16.8mm、管部１b″の長さは12mm、外径は13mm、内
径は10.2mmである。さらにノツクアウトスリーブ
６ａにより中空帽体１ｂを圧造ダイス２ｄから押
出し、次に段付ピン７ｂが貫通しているノツクア
ウトスリーブ６a′をセツトした第５の圧造ダイス
２ｅ内へ中空帽体１ｂを自動的に移送し、しかも
パンチダイス８により頭部１a′、テーパー面１
b′を中空球部１に形成するとともに管孔１′を
大・小径部１Ｂ，１B′に形成して半製品を得るも
のである。このとき中空帽体１ｂの長さは36mm、
中空球部１の外径は24mm、内径は19mm、管部１
b″の長さは12mm、外径は13mm、大径部１Ｂの径
は10.1mm、小径部１B′の径は8.5mmである。よつ
て第２次加工業者は前記半製品の両側面を従来例
のようにバイトで切削し、第２，３図示のアイジ
ヨイントを形成するものである。 This invention eliminates the drawbacks of the conventional examples mentioned above at once, and also makes it possible to make a metal fitting consisting of a spherical head and a cylinder hollow without cutting it. Next, the configuration of one embodiment will be described in detail with reference to the drawings. First, a 6-station part former (fully automatic multi-stage cold heading machine) including a cutting means was used with a diameter of 20 mm.
Cut the mm iron coil material into 15.5 mm length. The cylindrical piece 1a obtained by cutting is automatically transferred and attached to the first cold heading die 2a as shown in FIG. Pressure forming is performed using a punch 4a to form a conical tapered surface on the head 1a' and to form an extremely shallow recess 5a. At this time, the diameter of the cylindrical piece 1a is 21.5 mm and the length is 13.5 mm. Next, the cylindrical piece 1a is extruded from the first die 2a by the knockout pin 3a, automatically attached to the second cold heading die 2b, and then inserted into the head 1a' by the knockout pin 3a.
are brought into contact with each other, a small-diameter forging punch 4b is pushed in, and a hole is formed by backward extrusion to form a cylindrical piece 1a into a hollow cap body 1b (FIG. 4B). At this time, the outer diameter of the hollow cap body 1b is 21.65 mm, the inner diameter is 16.5 mm, and the length is 27 mm.
mm, and the depth of the large hole 5b is 23 mm. Next, the hollow cap body 1b is automatically attached to the third heading die 2c, and the small diameter knockout pin 3b is brought into contact with the head 1a', and the large hole 5b formed in the previous step is removed.
A forging punch 4c having a hemispherical tip is pushed in to form the head 1a' of the hollow cap body 1b into a convex arc shape (FIG. 4C). At this time, the outer diameter of the hollow cap body 1b is 21.75 mm, the inner diameter is 16.4 mm, the length is 30 mm, and the depth of the large hole 5b is 27.5 mm. Thereafter, the hollow cap body 1b is reversely transferred and attached into the fourth forging die 2d, which has a knockout sleeve 6a through which the tube forming pin 7a passes and whose tip 7a' protrudes, and is attached so that the tip is a concave arc. The hollow cap body 1b is pushed in with a planar forging punch 4d to form a conical tapered surface 1b' in the middle of the hollow cap body 1b and to form a tube portion 1b'' (FIG. 4D). Cap body 1b
The length is 42mm, the outer diameter of head 1a is 21.8mm, and the inner diameter is
16.8 mm, the length of the tube portion 1b'' is 12 mm, the outer diameter is 13 mm, and the inner diameter is 10.2 mm.The hollow cap body 1b is then pushed out from the heading die 2d by the knockout sleeve 6a, and then the stepped pin 7b passes through it. The hollow cap body 1b is automatically transferred into the fifth heading die 2e in which the knockout sleeve 6a' is set, and the head 1a' and the tapered surface 1 are
b' is formed in the hollow spherical part 1, and tube holes 1' are formed in the large and small diameter parts 1B and 1B' to obtain a semi-finished product. At this time, the length of the hollow cap body 1b is 36 mm,
The outer diameter of the hollow sphere part 1 is 24 mm, the inner diameter is 19 mm, and the tube part 1
The length of the semi-finished product is 12 mm, the outer diameter is 13 mm, the diameter of the large diameter part 1B is 10.1 mm, and the diameter of the small diameter part 1B' is 8.5 mm. As in the conventional example, the eye joint shown in the second and third figures is formed by cutting with a cutting tool.
また、この発明例では５種類のダイスを経て１
個あたり約５秒で半製品を得るが、実際上は５種
類のダイスが遊ぶことなく、一時に稼動するの
で、１個あたり１秒で製することができ、これは
従来例による「むく」の半製品を得る時間と同じ
である。一方、従来例は第２次加工で前述の多工
程を経るのに対し、この発明例では側面を切削す
るのみであるから、本発明例の方が第２次加工の
時間が極端に短縮するのは勿論である。 In addition, in this invention example, 1
It takes about 5 seconds per piece to produce a semi-finished product, but in reality, five types of dice are operated at the same time without playing, so each piece can be manufactured in 1 second. The time to get semi-finished products is the same. On the other hand, whereas the conventional example goes through the aforementioned multiple steps in the secondary machining, the inventive example only cuts the side surface, so the time for the secondary machining is extremely shortened in the inventive example. Of course.
このようにこの発明は従来例と第１次加工に費
す時間が同じでありながら、第２次加工の工程を
極端に少なく、かつ時間を短縮させることがで
き、また切削することなく、圧延により行なうか
ら、材料に無駄がなく、安価に製することがで
き、しかも強度および精度の高い製品を得ること
ができるものである。 In this way, the present invention can significantly reduce the number of secondary processing steps and shorten the time, while the time required for primary processing is the same as in the conventional method. Since this process is carried out, there is no waste of materials, the product can be manufactured at low cost, and it is possible to obtain a product with high strength and precision.
第１〜４図はこの発明例を示すもので、第１図
はこの発明方法により得た半製品の一部を切欠い
た斜視図、第２図は同上完成品の斜視図、第３図
は完成品の使用状態を示す断面図、第４図は製造
工程を示す説明図、第５図は製造工程における金
具を半断面にした側面図、第６図は従来法の説明
図である。
１……中空球部、１ａ……円柱片、１a′……帽
体頭部、１ｂ……中空帽体、１b′……テーパー
面、１b″……管部、１Ｂ……大径部、１B′……
小径部、２ｂ，２ｃ，２ｄ，２ｅ……圧造ダイ
ス、４ｂ，４ｃ……圧造パンチ、７ａ……管形成
ピン、７ｂ……段付ピン、８……パンチダイス。
Figures 1 to 4 show examples of this invention. Figure 1 is a partially cutaway perspective view of a semi-finished product obtained by the method of this invention, Figure 2 is a perspective view of the finished product, and Figure 3 is a perspective view of the finished product. FIG. 4 is an explanatory diagram showing the manufacturing process, FIG. 5 is a side view showing a half section of the metal fitting in the manufacturing process, and FIG. 6 is an explanatory diagram of the conventional method. 1...Hollow sphere part, 1a...Cylinder piece, 1a'...Cap body head, 1b...Hollow cap body, 1b'...Tapered surface, 1b''...Pipe part, 1B...Large diameter part, 1B'...
Small diameter portion, 2b, 2c, 2d, 2e...heading die, 4b, 4c...heading punch, 7a... tube forming pin, 7b... stepped pin, 8... punch die.
Claims (1)
とともに穿孔用の圧造パンチで後方押出しを行な
つて中空帽体を形成し、前記中空帽体を次段階の
圧造ダイスへ取付けるとともに圧造パンチで帽体
頭部を凸弧面に形成し、さらに前記中空帽体の開
口端より管形成ピンを挿入するとともに次の圧造
ダイスにより前記中空帽体の途中へテーパー面を
形成し、しかも前記テーパー面へ連続して管部を
形成し、さらに最終の圧造ダイスへ前記中空帽体
を取付け、パンチダイスおよび段付ピンにより前
記中空帽体を中空球部および小径部、大径部を有
する管部とから成る半製品に形成することを特徴
とするアイジヨイントの半製品の製造方法。1 Attach a metal cylindrical piece to a cold heading die and extrude it backwards with a forging punch for perforation to form a hollow cap body, attach the hollow cap body to the next stage of the forging die, and press the cap with a forging punch. The body head is formed into a convex arc surface, and a tube forming pin is inserted from the open end of the hollow cap body, and a tapered surface is formed in the middle of the hollow cap body using a next heading die, and furthermore, a tapered surface is formed in the middle of the hollow cap body. Continuously form a tube part, and then attach the hollow cap body to a final heading die, and use a punch die and stepped pin to separate the hollow cap body from a hollow sphere part and a tube part having a small diameter part and a large diameter part. 1. A method for producing a semi-finished product of an eye joint, characterized by forming a semi-finished product consisting of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58102123A JPS59225843A (en) | 1983-06-07 | 1983-06-07 | Production of semi-finished product of eye joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58102123A JPS59225843A (en) | 1983-06-07 | 1983-06-07 | Production of semi-finished product of eye joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59225843A JPS59225843A (en) | 1984-12-18 |
| JPS6222699B2 true JPS6222699B2 (en) | 1987-05-19 |
Family
ID=14319012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58102123A Granted JPS59225843A (en) | 1983-06-07 | 1983-06-07 | Production of semi-finished product of eye joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59225843A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04119500U (en) * | 1991-04-09 | 1992-10-26 | アルパイン株式会社 | Double vocal effect addition circuit |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61162231A (en) * | 1985-01-12 | 1986-07-22 | Hosei Brake Kogyo Kk | Manufacture of vent plug for hydraulic machine |
| US5129251A (en) * | 1987-08-14 | 1992-07-14 | Usui Kokusai Sangyo Kaisha Ltd. | Manufacturing process for end fitting for eye joint |
| JP5470198B2 (en) * | 2010-08-23 | 2014-04-16 | 株式会社クボタ | Manufacturing method for engine external piping joint |
| CN103522025B (en) * | 2013-10-21 | 2015-11-18 | 如皋市同泰电力器材有限公司 | A kind of production technology of supporting single lug |
-
1983
- 1983-06-07 JP JP58102123A patent/JPS59225843A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04119500U (en) * | 1991-04-09 | 1992-10-26 | アルパイン株式会社 | Double vocal effect addition circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59225843A (en) | 1984-12-18 |
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