JPH0230350A - Rotary forging machine - Google Patents
Rotary forging machineInfo
- Publication number
- JPH0230350A JPH0230350A JP7050288A JP7050288A JPH0230350A JP H0230350 A JPH0230350 A JP H0230350A JP 7050288 A JP7050288 A JP 7050288A JP 7050288 A JP7050288 A JP 7050288A JP H0230350 A JPH0230350 A JP H0230350A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- die
- mold
- forging
- upper 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.)
- Pending
Links
- 238000005242 forging Methods 0.000 title claims description 36
- 238000000465 moulding Methods 0.000 claims description 4
- 230000010363 phase shift Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000003780 insertion Methods 0.000 description 12
- 230000037431 insertion Effects 0.000 description 12
- RRLHMJHRFMHVNM-BQVXCWBNSA-N [(2s,3r,6r)-6-[5-[5-hydroxy-3-(4-hydroxyphenyl)-4-oxochromen-7-yl]oxypentoxy]-2-methyl-3,6-dihydro-2h-pyran-3-yl] acetate Chemical compound C1=C[C@@H](OC(C)=O)[C@H](C)O[C@H]1OCCCCCOC1=CC(O)=C2C(=O)C(C=3C=CC(O)=CC=3)=COC2=C1 RRLHMJHRFMHVNM-BQVXCWBNSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/025—Special design or construction with rolling or wobbling dies
-
- 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
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
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、略円形状の機械部品を鍛造する回転鍛造装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a rotary forging device for forging substantially circular mechanical parts.
（従来の技術）
従来より、この種の回転鍛造装置として、例えば第１０
図に示すように、駆動手段１の回転により該駆動手段１
の回転中心軸ｐ１回りに軸心９２が所定の角度θをもっ
た状態で揺動するヘッド２と、該ヘッド２に設けられた
上型３と、ピストン４の作動により昇降動可能に設けら
れたラム５と、該ラム５に上記上型３に対向して設けら
れた下型６とを備え、上記上型３をヘッド２と共に駆動
手段１の回転中心軸交１回り揺動させるとともに、下型
６をラム５と一体に上昇させて、下型６上に配置した素
材ａを上型３によって拡径しつつ押し、潰すことにより
円形状部品すを鍛造成形するようにしたものは知られて
いる（例えば特開昭６１−２４２７３８号公報参照）。(Prior art) Conventionally, as this type of rotary forging device, for example, the 10th
As shown in the figure, the rotation of the driving means 1 causes the driving means 1 to
A head 2 that swings around a rotation center axis p1 with an axis 92 having a predetermined angle θ, an upper mold 3 provided on the head 2, and a piston 4 that can be moved up and down by the operation of the head 2. The ram 5 is provided with a lower mold 6 provided on the ram 5 to face the upper mold 3, and the upper mold 3 is swung together with the head 2 around the rotation center axis of the driving means 1, There is a known device in which the lower mold 6 is raised together with the ram 5, and the material a placed on the lower mold 6 is pressed while being expanded in diameter by the upper mold 3, and a circular part is forged by being crushed. (See, for example, Japanese Patent Laid-Open No. 61-242738).
尚、７は上型３側に設けられたイジェクタピストン、８
は下型６側に設けられたイジェクタピストン、９はラム
５の昇降動を案内するガイドボストである。In addition, 7 is an ejector piston provided on the upper mold 3 side, 8
9 is an ejector piston provided on the lower mold 6 side, and 9 is a guide post that guides the upward and downward movements of the ram 5.
（発明が解決しようとする課題）
ところで、周方向に四部もしくは凸部の少なくとも一方
を有する略円形状部品を製造する場合、通常、上述の如
き回転鍛造装置を用いて鍛造する工程では凹凸部までは
成形せず、鍛造工程の後、旋削等の別の工程で凹凸部を
成形しているが、この場合、工程数が増加し、コスト的
に高くつくなどの問題がある。これは、従来の回転鍛造
装置では、上型３がヘッド２と共に駆動手段１の回転中
心軸９１回りに揺動する際にその揺動に伴って回転し、
下型６との間に必然的に位相ずれが生じるため、外周縁
に凹凸部を精度良く成形することはできなかったからで
ある。(Problem to be Solved by the Invention) By the way, when manufacturing a substantially circular part having at least one of four parts or a convex part in the circumferential direction, the process of forging using the above-mentioned rotary forging apparatus usually involves cutting the parts up to the concave and convex parts. Instead of forming, the uneven parts are formed in another process such as turning after the forging process, but in this case, there are problems such as an increase in the number of processes and high cost. This is because, in the conventional rotary forging apparatus, when the upper die 3 swings together with the head 2 around the rotation center axis 91 of the drive means 1, the upper die 3 rotates along with the swing.
This is because a phase shift inevitably occurs between the mold and the lower mold 6, making it impossible to precisely form the uneven portion on the outer peripheral edge.
本発明はかかる点に鑑みてなされたものであり、その目
的とするところは、従来の回転鍛造装置に対して、上型
と下型との位相ずれを防止する機構を設けることにより
、鍛造工程において鍛造品（略円形状部品）の外周縁に
凹凸部を同時にかつ精度良く成形し得るようにするもの
である。The present invention has been made in view of these points, and its purpose is to improve the forging process by providing a mechanism for preventing phase shift between the upper mold and the lower mold in conventional rotary forging equipment. In this method, an uneven portion can be formed simultaneously and accurately on the outer peripheral edge of a forged product (substantially circular part).
（課題を解決するための手段）
上記目的を達成するため、本発明の解決手段は、周方向
に凹部もしくは凸部の少なくとも一方を有する略円形状
部品を鍛造する回転鍛造装置として、上型および下型の
いずれか一方にリング状の第１の位相合せ部材を上下動
可能に設けるとともに、他方の型に、鍛造時における上
記凹部もしくは凸部の少なくとも一方を成形する際に上
記第１の位相合せ部材と係合する第２の位相合せ部材を
設ける構成とするものである。(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention provides an upper die and A ring-shaped first phasing member is provided on one of the lower molds so as to be movable up and down, and the first phasing member is provided on the other mold when forming at least one of the recesses or protrusions during forging. The configuration is such that a second phasing member that engages with the matching member is provided.
（作用）
上記の構成により、本発明では１．鍛造時、特に鍛造素
材たる略円形状部品に対してその周方向に凹部もしくは
凸部の少なくとも一方を成形する際には、上型および下
型にそれぞれ設けられた位相合せ部材同士が互いに係合
Ｉ７て上型の揺動に伴う下型との間の位相ずれが確実に
防止され、また、その係合は、第１の位相合せ部材が上
型の揺動に伴い配設側の型に対して進退動することによ
り上型と下型とによる回転鍛造に支障を来たすこともな
いので、周方向に凹部もしくは凸部の少なくとも一方が
精度良く成形されてなる鍛造品が得られることになる。(Function) With the above configuration, the present invention has 1. During forging, especially when forming at least one of a concave portion or a convex portion in the circumferential direction of a substantially circular part that is a forged material, the phasing members provided on the upper die and the lower die engage with each other. I7 reliably prevents a phase shift between the upper mold and the lower mold due to the swinging of the upper mold, and the engagement is such that the first phasing member is connected to the disposed mold as the upper mold swings. Since the rotational forging by the upper die and the lower die is not hindered by moving forward and backward, a forged product can be obtained in which at least one of concave portions and convex portions is formed with high accuracy in the circumferential direction. .
（実施例） 以下、本発明の実施例を図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the drawings.
第８図は変速機用オンリーギヤＷの製造工程を示し、こ
のオンリーギヤＷは、スプラインギヤ部ｗ１とヘリカル
ギヤ部Ｗ２とからなる。オンリーギヤＷの製造工程とし
ては、先ず初めに、バイブ状の素材ａを用意し、この素
材ａに対して回転鍛造によりスプラインギヤ部Ｗ１と該
スプラインギヤ部Ｗ１側端面の逆テーパ面Ｗ３とを成形
する。FIG. 8 shows the manufacturing process of the only gear W for a transmission, and this only gear W consists of a spline gear part w1 and a helical gear part W2. In the manufacturing process of the only gear W, first, a vibrator-shaped material a is prepared, and a spline gear portion W1 and a reverse tapered surface W3 on the side end surface of the spline gear portion W1 are formed on the material a by rotary forging. Shape.
次に、旋削工程において、素材ａのヘリカルギヤ部分に
対してギヤシェーバ−によりヘリカル歯切りを行うため
の溝入れ等のブランク加工を行う。Next, in the turning step, blank processing such as grooving for helical gear cutting is performed on the helical gear portion of the material a using a gear shaver.
そして、ヘリカルギヤ部Ｗ２の歯切りを行い、シェービ
ングをした後、熱処理工程で浸炭焼入を行う。最後に、
研削により中空内面および端面等の仕上げを行う。After gear cutting and shaving of the helical gear portion W2, carburizing and quenching is performed in a heat treatment process. lastly,
The hollow inner surface and end surfaces are finished by grinding.
そして、本発明の一実施例に係わる回転鍛造装置は、上
記オンリーギヤＷの製造工程において、ギヤスプライン
部Ｗ２および逆テーバ面Ｗ３を回転鍛造により成形する
場合に用いるためのものであり、その回転鍛造装置は第
１図および第２図に示す。尚、回転鍛造装置の基本的構
成は、従来の技術の項で第１０図を用いて説明したもの
と同じであるので、同一部材には同一符号を付してその
説明は省略する。The rotary forging device according to an embodiment of the present invention is used when forming the gear spline portion W2 and the reverse tapered surface W3 by rotary forging in the manufacturing process of the only gear W, and the rotation The forging equipment is shown in FIGS. 1 and 2. The basic configuration of the rotary forging device is the same as that explained using FIG. 10 in the section of the prior art, so the same members are given the same reference numerals and the explanation thereof will be omitted.
第１図および第２図において、上型３はヘッド２と一体
に回転中心軸９１回りにその軸心９２が所定の角度θを
もった状態で揺動するようになっている一方、下型６は
上型３に対向してラム５と一体に上下移動可能に設けら
れている。上記下型６の中心部には、素材ａのへりカル
ギヤ部分を挿入して支持する挿入部６ａが形成されてい
るとともに、回転鍛造の終了後該挿入部６ａ内の鍛造品
を押出すためのイジェクタパンチ１０がイジェクタピス
トン８の上昇動によりラム５側から挿入部６ａ内に突出
可能に設けられている。上記挿入部６ａ内に挿入された
素材ａの中空部内にはマンドレル１１がスプリング１２
を介してイジェクタピストン８上に支持された状態で摺
動自在に挿入されていて、このマンドレル１１により回
転鋳造時に素材ａが内径側に拡張するのを防止するよう
になっている。In FIGS. 1 and 2, the upper mold 3 is designed to swing together with the head 2 around a rotation center axis 91 with its axis 92 having a predetermined angle θ, while the lower mold 6 is provided opposite to the upper mold 3 and is movable up and down integrally with the ram 5. An insertion part 6a is formed in the center of the lower mold 6 for inserting and supporting the helical gear part of the material a, and is used to extrude the forged product in the insertion part 6a after rotational forging is completed. An ejector punch 10 is provided so that it can be projected into the insertion portion 6a from the ram 5 side by the upward movement of the ejector piston 8. A mandrel 11 is attached to a spring 12 in the hollow part of the material a inserted into the insertion part 6a.
The mandrel 11 is slidably inserted into the ejector piston 8 while being supported on the ejector piston 8, and the mandrel 11 prevents the material a from expanding inward during rotary casting.
また、上記下型６の上面および上型３の下面には、鍛造
すべきオンリーギヤＷのスプラインギヤ部ｗ１および逆
テーパ面Ｗ３に対応した形状の型面６ｂ、３ｂがそれぞ
れ形成されている。ここで、オンリーギヤＷのスプライ
ンギヤ部Ｗ］は、第９図に示すように、外周縁に複数の
略五角錐台形状のギヤ歯部ｗ４．ｗ４．・・・が周方向
に所定の間隔毎に突出してなるものであり、このギヤ歯
部Ｗ４上に位置する合せ面ラインＬの上側部分は上型３
の型面３ｂにより、下側部分は下型６の型面６ｂにより
それぞれ成形されるようになっている。Further, on the upper surface of the lower die 6 and the lower surface of the upper die 3, mold surfaces 6b and 3b each having a shape corresponding to the spline gear portion w1 and the reverse tapered surface W3 of the only gear W to be forged are formed. Here, as shown in FIG. 9, the spline gear portion W of the only gear W includes a plurality of substantially pentagonal truncated pyramid-shaped gear teeth portions w4. w4. ... protrude at predetermined intervals in the circumferential direction, and the upper part of the mating surface line L located on the gear tooth portion W4 is the upper mold 3.
The lower part is molded by the mold surface 6b of the lower mold 6, respectively.
そして、本発明の特徴点として、上記下型６には、第４
図および第５図に詳示するように、型面６ｂよりも外周
縁側の部位にリング状の挿入部６Ｃが形成されていると
ともに、該挿入部６Ｃ内には、上面にギヤ部１３ａを有
するリング状の第１の位相合せ部材１３が上下動可能に
挿入配置されている。上記位相合せ部材１３は、その下
面と挿入部１２の底面との間に介在されたスプリング１
４、・・・により挿入部１２内から突出する方向つまり
上方に付勢されているとともに、キ一部材１５゜・・・
に対し係合部１３ｂ、・・・が係合することにより、ギ
ヤ部１３ａのみが挿入部１２内から突出する位置に上方
への移動が規制されている。As a feature of the present invention, the lower mold 6 includes a fourth
As shown in detail in the drawings and FIG. 5, a ring-shaped insertion portion 6C is formed at a portion closer to the outer peripheral edge than the mold surface 6b, and the insertion portion 6C has a gear portion 13a on the upper surface. A ring-shaped first phasing member 13 is inserted and arranged to be movable up and down. The phasing member 13 has a spring 1 interposed between its lower surface and the bottom surface of the insertion portion 12.
4, . . . are urged in the direction of protruding from the inside of the insertion portion 12, that is, upwardly, and the key member 15° .
By engaging the engaging portions 13b, . . . , upward movement of the gear portion 13a is restricted to a position where only the gear portion 13a protrudes from inside the insertion portion 12.
また、上記上型３には、第５図および第６図に詳示する
ように、型面３ｂよりも外側の部位に上記第１の位相合
せ部材１３のギヤ部１３ａと係合可能なリングギヤより
なる第２の位相合せ部材１６が設けられている。該第２
の位相合せ部材１６は、上型３と一体に形成され、ある
いは上型３と別体とし、上型３に組付けられるものであ
る。そして、上記第２の位相合せ部材コ、６は、回転鍛
造時におけるスプラインギヤ部Ｗ１外周縁のギヤ歯部ｗ
４を成形する際に上記第１．の位相合せ部材１３のギヤ
部１３ａと係合するように設けられている。The upper mold 3 also has a ring gear that can engage with the gear portion 13a of the first phasing member 13 at a portion outside the mold surface 3b, as shown in detail in FIGS. 5 and 6. A second phasing member 16 is provided. The second
The phasing member 16 is formed integrally with the upper mold 3 or is formed separately from the upper mold 3 and assembled to the upper mold 3. The second phasing member 6 is a gear tooth portion w on the outer peripheral edge of the spline gear portion W1 during rotation forging.
When molding 4, the above 1. It is provided so as to engage with the gear portion 13a of the phasing member 13.
次に、上記実施例の作用効果を説明するに、回転鍛造に
よりオンリーギヤＷのスプラインギヤ部ｗ１および逆テ
ーバ面Ｗ３を成形する場合、第１図に示すように、素材
ａを下型６の挿入部６ａ内に挿入配置した状態において
、上型３を中心回転軸９１回りに揺動させるとともに、
下型６を一定速度で上昇させることにより、下型６の挿
入部６ａ内から突出する素材ａの部分を上型３により拡
径しながら押し潰して該上型３および下型６の両型面３
ｂ、６ｂに対応した形状に成形していく。Next, to explain the effects of the above embodiment, when forming the spline gear part w1 and the reverse tapered surface W3 of the only gear W by rotary forging, as shown in FIG. In the state inserted into the insertion portion 6a, the upper mold 3 is swung around the central rotation axis 91, and
By raising the lower mold 6 at a constant speed, the portion of the material a protruding from inside the insertion portion 6a of the lower mold 6 is crushed while being expanded in diameter by the upper mold 3, and both the upper mold 3 and the lower mold 6 are crushed. Side 3
It is molded into a shape corresponding to b and 6b.
そして、素材ａがある程度成形されてスプラインギヤ部
ｗ１外周縁のギヤ歯部ｗ４を成形する際には、第２図に
示すように、下型６側の第１の位相合せ部材１３（ギヤ
部１３ａ）と上型３側の第２の位相合せ部材１６とが互
いに係合するようになる。この係合初期の段階で上型３
と下型６との間に位相ずれがあるとき（第７図に示す状
態）には、上型３は、成形が進行するに従い、上記側位
相合せ部材１３．１６の係合によって軸６ｊ２回りに徐
々に回転して位相ずれを解消し、以後は下型６との間に
位相ずれがない状態に保持される。Then, when the material a has been molded to some extent and the gear teeth w4 on the outer peripheral edge of the spline gear part w1 are to be molded, the first phasing member 13 (the gear part 13a) and the second phasing member 16 on the upper die 3 side come to engage with each other. At this early stage of engagement, the upper die 3
When there is a phase shift between the upper mold 3 and the lower mold 6 (the state shown in FIG. 7), the upper mold 3 is rotated around the axis 6j2 by the engagement of the side phasing members 13 and 16 as molding progresses. The mold 6 is gradually rotated to eliminate the phase shift, and from then on, it is maintained in a state where there is no phase shift between it and the lower die 6.
また、この係合状態において、第１の位相合せ部材１３
は、上型３の揺動に伴い該上型３の傾斜側の部分が上型
３からの圧力によりスプリング１４の付勢力に抗して挿
入部１２内に埋没するように移動する。Furthermore, in this engaged state, the first phasing member 13
As the upper mold 3 swings, the inclined side portion of the upper mold 3 moves to be buried in the insertion portion 12 against the biasing force of the spring 14 due to the pressure from the upper mold 3.
したがって、スプラインギヤ部Ｗ１外周縁のギヤ歯部Ｗ
４は、位相ずれのない上型３と下型６とによって成形さ
れるとともに、その成形は上記位相合せ部材１３．１６
同士の係合によって支障を受けることもないので、回転
鍛造によってギヤ歯部ｗ４を精度良く成形することがで
きる。Therefore, the gear tooth portion W on the outer peripheral edge of the spline gear portion W1
4 is molded by an upper mold 3 and a lower mold 6 with no phase shift, and the molding is performed by the above-mentioned phasing members 13 and 16.
Since there is no problem due to engagement between the two, the gear tooth portion w4 can be formed with high accuracy by rotary forging.
尚、上記実施例では、本発明を、変速機用オンリーギヤ
Ｗのスプラインギヤ部ｗ１等を鍛造する回転鍛造装置に
適用したが、これに限らず、周方向にギヤ歯部や溝等の
凹部もしくは凸部の少なくとも一方を有する略円形状の
機械部品を鍛造する回転鍛造装置にも同様に適用するこ
とができるのは勿論である。In the above embodiment, the present invention is applied to a rotary forging device for forging the spline gear portion w1 of the only gear W for a transmission, etc., but the present invention is not limited to this, and is not limited to this. Alternatively, it goes without saying that the present invention can also be similarly applied to a rotary forging device for forging a substantially circular mechanical part having at least one of the convex portions.
（発明の効果）
以上の如く、本発明の回転鍛造装置によれば、鍛造品の
周方向に凹部もしくは凸部の少なくとも一方を成形する
際、上型および下型に各々設けられた位相合せ部材同士
の係合によって上型の下型に対する位相ずれが確実に防
止されるので、回転鍛造において上記凹部もしくは凸部
を精度良く成形することができ、製造工程の減少を有効
に図ることができるものである。(Effects of the Invention) As described above, according to the rotary forging apparatus of the present invention, when forming at least one of the concave portions and the convex portions in the circumferential direction of a forged product, the phasing members provided in the upper die and the lower die are respectively provided. Since the engagement between the upper mold and the lower mold is reliably prevented, the recesses or protrusions can be formed with high accuracy in rotary forging, and the number of manufacturing steps can be effectively reduced. It is.
第１図ないし第９図は本発明の実施例を示すもので、第
１図および第２図は回転鍛造装置の主要部分の構成を示
す縦断面図であり、第１図は鍛造成形開始直前の状態を
示し、第２図は鍛造成形終了直前の状態を示す。第３図
は下型の縦断面図、第４図は下型を上方より見た平面図
、第５図は上型の縦断面図、第６図は上型を下方より見
た底面図、第７図は位相合せ部材同士の係合状態を示す
側面図である。第８図は変速機用オンリーギヤの製造工
程図であり、第９図は同オンリーギヤのスプラインギヤ
部外周縁の拡大斜視図である。第１０図は回転鍛造装置
の基本的構成を示す縦断面図である。
３・・・上型、６・・・下型、１３・・・第１の位相合
せ部材、１６・・・第２の位相合せ部材。
第
図
第
図
第
図1 to 9 show embodiments of the present invention, and FIGS. 1 and 2 are longitudinal sectional views showing the configuration of the main parts of the rotary forging device, and FIG. 1 is a diagram immediately before the start of forging. Fig. 2 shows the state immediately before forging is completed. Fig. 3 is a longitudinal sectional view of the lower mold, Fig. 4 is a plan view of the lower mold seen from above, Fig. 5 is a longitudinal sectional view of the upper mold, and Fig. 6 is a bottom view of the upper mold seen from below. FIG. 7 is a side view showing a state in which the phase matching members are engaged with each other. FIG. 8 is a manufacturing process diagram of the only gear for a transmission, and FIG. 9 is an enlarged perspective view of the outer periphery of the spline gear portion of the only gear. FIG. 10 is a longitudinal sectional view showing the basic configuration of the rotary forging device. 3... Upper die, 6... Lower die, 13... First phasing member, 16... Second phasing member. Figure Figure Figure
Claims (1)
する略円形状部品を鍛造する回転鍛造装置であって、上
型および下型のいずれか一方にリング状の第１の位相合
せ部材が上下動可能に設けられ、他方の型に、鍛造時に
おける上記凹部もしくは凸部の少なくとも一方を成形す
る際に上記第１の位相合せ部材と係合する第２の位相合
せ部材が設けられていることを特徴とする回転鍛造装置
。(1) A rotary forging device for forging a substantially circular part having at least one of a concave portion and a convex portion in the circumferential direction, wherein a ring-shaped first phasing member is provided above and below in either the upper die or the lower die. The other die is provided with a second phasing member that engages with the first phasing member when molding at least one of the concave portion or the convex portion during forging. A rotary forging device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7050288A JPH0230350A (en) | 1988-03-23 | 1988-03-23 | Rotary forging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7050288A JPH0230350A (en) | 1988-03-23 | 1988-03-23 | Rotary forging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0230350A true JPH0230350A (en) | 1990-01-31 |
Family
ID=13433365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7050288A Pending JPH0230350A (en) | 1988-03-23 | 1988-03-23 | Rotary forging machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0230350A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999008820A1 (en) * | 1997-08-13 | 1999-02-25 | Hirschvogel Umformtechnik Gmbh | Method for producing a gear wheel, device for carrying out the method, and wheel produced by this method |
| EP1186363A1 (en) * | 2000-09-12 | 2002-03-13 | Visteon Global Technologies, Inc. | Die for a wobble press |
| KR100355476B1 (en) * | 2000-06-20 | 2002-10-11 | 최수봉 | Teflon needle with auxilary needle used in insulin pump |
| CN103909152A (en) * | 2013-06-27 | 2014-07-09 | 国家电网公司 | Rotation device for stamping die and stamping die |
| WO2019159935A1 (en) * | 2018-02-14 | 2019-08-22 | 日本精工株式会社 | Conveyance system, rocking-die forging method, rocking-die forging apparatus, bearing manufacturing method, vehicle manufacturing method, and machinery manufacturing method |
-
1988
- 1988-03-23 JP JP7050288A patent/JPH0230350A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999008820A1 (en) * | 1997-08-13 | 1999-02-25 | Hirschvogel Umformtechnik Gmbh | Method for producing a gear wheel, device for carrying out the method, and wheel produced by this method |
| US6276180B1 (en) * | 1997-08-13 | 2001-08-21 | Hirschvogel Umformtechnik Gmbh | Method and apparatus for manufacturing a shift gearwheel and shift gearwheel manufactured by same |
| KR100355476B1 (en) * | 2000-06-20 | 2002-10-11 | 최수봉 | Teflon needle with auxilary needle used in insulin pump |
| EP1186363A1 (en) * | 2000-09-12 | 2002-03-13 | Visteon Global Technologies, Inc. | Die for a wobble press |
| CN103909152A (en) * | 2013-06-27 | 2014-07-09 | 国家电网公司 | Rotation device for stamping die and stamping die |
| WO2019159935A1 (en) * | 2018-02-14 | 2019-08-22 | 日本精工株式会社 | Conveyance system, rocking-die forging method, rocking-die forging apparatus, bearing manufacturing method, vehicle manufacturing method, and machinery manufacturing method |
| US11959515B2 (en) | 2018-02-14 | 2024-04-16 | Nsk Ltd. | Conveying system, rotary forging method, rotary forging apparatus, method for manufacturing bearing, method for manufacturing vehicle, and method for manufacturing mechanical device |
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