JPS62263841A - Formation of outer wheel for constant velocity joint - Google Patents
Formation of outer wheel for constant velocity jointInfo
- Publication number
- JPS62263841A JPS62263841A JP61107848A JP10784886A JPS62263841A JP S62263841 A JPS62263841 A JP S62263841A JP 61107848 A JP61107848 A JP 61107848A JP 10784886 A JP10784886 A JP 10784886A JP S62263841 A JPS62263841 A JP S62263841A
- Authority
- JP
- Japan
- Prior art keywords
- forming
- punch
- constant velocity
- preform
- velocity joint
- 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
- 230000015572 biosynthetic process Effects 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000010409 ironing Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 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
- B21K1/762—Coupling members for conveying mechanical motion, e.g. universal joints
-
- 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
- B21K1/762—Coupling members for conveying mechanical motion, e.g. universal joints
- B21K1/765—Outer elements of coupling members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、内面にトランク溝を有すると共に開口端側に
内面の最大内径より小径のアンダーカント部全有する等
速ジヨイント外輪の成形方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for forming a constant velocity joint outer ring having a trunk groove on the inner surface and an entire undercant portion having a smaller diameter than the maximum inner diameter of the inner surface on the open end side.
（従来の技術）
従来、との種等速ジヨイント外輪の成形は、トラック溝
用の凹＃を形成し九カップ状素材に成形パンチを挿入し
、該素材を成形ダイにより外周からしごき成形すること
で行っている。(Prior art) Conventionally, the outer ring of a constant velocity joint was formed by forming a concave # for a track groove, inserting a forming punch into a cup-shaped material, and then ironing the material from the outer periphery with a forming die. I'm doing it.
・ この場合、該素材の凹溝及び凹溝間の内面部分のパ
ンチに対するクリアランスは内面全面に亘り、ｅンチの
挿入に必要な微小量に設定されている。- In this case, the clearance for the punch between the grooves of the material and the inner surface between the grooves is set to a minute amount necessary for insertion of the e-inch over the entire inner surface.
（発明が解決しようとする問題点）
ところで、一般にカップ状素材をしごき成形し次場合、
剛性の高い底部側に働くスプリングパック力により剛性
の低い開口端側か拡開されて、製品が口開き傾向になり
易い。(Problems to be solved by the invention) By the way, in general, when a cup-shaped material is iron-formed,
Due to the spring pack force acting on the bottom side, which has higher rigidity, the open end side, which has lower rigidity, expands, and the product tends to open.
特に、開口端側にアンダーカット部を有するものでは、
底部から最大内径部′までのしごき成形は良好に行われ
ても、最大内径部を過ぎたアンダーカント部のしごき成
形に際しては、パンチに対するダイのクリアランスが増
加して、材料のパンチに対する密着度が不足し勝ちとな
り、口開き傾向が増長され、トランク溝のゾール転動面
の縦断面形状が正規のものにならず、形状ｎ１度が悪く
なる問題がある。In particular, those with an undercut on the open end side,
Even if ironing from the bottom to the maximum inner diameter part' is carried out well, when ironing the undercant part past the maximum inner diameter part, the clearance of the die to the punch increases, resulting in poor adhesion of the material to the punch. There is a problem in that there is a tendency to shorten the diameter, the tendency to open the opening increases, and the vertical cross-sectional shape of the sole rolling surface of the trunk groove is not normal, resulting in a poor shape n1 degree.
本発明は、成形後のスプリングパンクによるＯ開き全抑
制し、形状精度の高い製品を得られる工うにしｔ成形方
法全提供することをその目的とする。An object of the present invention is to provide a method for molding a molded product that completely suppresses the O-opening caused by spring puncture after molding and can obtain a product with high shape accuracy.
（問題点を解決する友めの手段）
本発明は、上記目的金達放すべく、内面にトランク溝を
有すると共に開口端１ｔ１１１１Ｃ内面の最大内径りり
小径のアンダーカット部を有する等速ジヨイント外輪の
成形方法であって、トラック溝用の凹溝を形成したカッ
プ状素材に成形パンチを押入して、該素材全外周からし
ごき成形するようにし文ものにおいて、該素材の該凹溝
間の内面部分の＃パンチに対するクリアランスをトラン
ク溝の有効長部分を過ぎ友該素材の底部近傍において大
きく設定し、しごき成形特の材料の逃げ空間を形成し友
ことを特徴とする。(Friendly Means for Solving Problems) In order to achieve the above-mentioned objective, the present invention is directed to forming a constant velocity joint outer ring having a trunk groove on the inner surface and an undercut portion having a smaller diameter than the maximum inner diameter of the open end 1t1111C inner surface. In this method, a forming punch is pushed into a cup-shaped material in which grooves for track grooves are formed, and ironing is performed from the entire outer periphery of the material. #The clearance for the punch is set large past the effective length of the trunk groove and near the bottom of the material to form an escape space for the material during ironing.
（ｆ′ｒ−用）
カップ状素材の底部近傍に材料の逃げ空間が形成される
ｔめ、底部近傍における材料のパンチへの密ｍｌｆが低
下し、その分成形後に働くスプリングパンクカも低下し
て、製品の口開きが抑制さ扛、アンダーカットｓｔｗす
る外輪の内面の形状精度を実用上問題にならない程度に
改良できる、
ここで、逃げ空間の形成位ｌｔはトランク＃Ｉ＃有効長
部分を過ぎた凹溝関の内面部分である丸め、紋内面部分
の形状ｎｇが悪くなっても、トランク溝の形状精度への
悪影響は生じず、要用上問題はない。(For f'r-) Since an escape space for the material is formed near the bottom of the cup-shaped material, the density mlf of the material to the punch near the bottom decreases, and the spring puncture force that acts after forming decreases accordingly. As a result, the opening of the product is suppressed, and the shape accuracy of the inner surface of the undercut outer ring can be improved to the extent that it does not pose a practical problem. Even if the shape ng of the rounded or crested inner surface portion of the concave groove gate is deteriorated, there is no adverse effect on the shape accuracy of the trunk groove, and there is no problem in terms of use.
（実施例）
第１図を参照して、（１）は内面にボール転勤面を構成
するトランク溝（１ａ）を周方向に等間隔に複数条形成
した等速ジヨイント外輪を示し、該トランク＃（ｌａ）
間の内面部分即ちケージ摺接面（１ｂ）を軸方向中間で
内径が最大となる工うにした球面に形成し、開口端側に
最大内径より小径のアンダーカント部（ｌＣ）を有する
ものとじｌｃ０尚、図示のものではトランク＠（ｌａ）
にもアンダーカット全村は良が、かかるアンダーカット
のない第１図に仮想線で示す如きストレートタイプのト
ランク溝（ｌａ）１に有する外輪（１）の成形にも本発
明を適用できる、
上記外輪（１）は、第２図に示す如く１、トラック＃（
ｌａ）ｌｃ対応する凹ｔ１４ｃ２ａ）ｆ形成しｔカップ
状素材（２）に成形パンチ（３）を挿入し、該素材（２
１をその底部側〃１ら開口端側に向って成形ダイ（４）
により外周からしごき成形することで形成これるもので
、この場−ｔ＝′該パンチ（３）は、テーパを付は九マ
ンドレル（３ａ辺外周に、第３図に示す如くトラック溝
（１ａ）及びケー・ジ摺接面（ｌｂ）に合致する取形面
を有する複数のコレット（３ｂ）を装着して収るものと
し、しごき異形され九アンダーカット部（ｌｃ）付きの
外輪（１）をこれらコレット（３ｂ’）７〕上動による
ノξンチ縮径動作で雌型させるように＾ここで、該素材
（２）は、押出しパンチを用いて通常の後方押出し法に
Ｌり成形式ｎるもので、この場合凹溝（２ａＸｉＪｌｌ
の内面部分（２ｂ）の前記成形ノぞンチ（３）に対する
クリアランスがトラック＃（ｌａ）の有効長部公人を過
ぎ丸底部近傍で大きくなるように、押出しパンチの対応
部分の寸法を大きく取って該素材（２）を成形し、成形
パンチ（３）を該素材（２）に挿入し友とき、底部近傍
の内面部分１（２ｂ）と該パン％（３）との間に、第２
図及び第４図に示す如く、材料の逃げ空間（５）を形成
し友。(Example) Referring to FIG. 1, (1) shows a constant velocity joint outer ring in which a plurality of trunk grooves (1a) constituting a ball transfer surface are formed on the inner surface at equal intervals in the circumferential direction, and the trunk # (la)
The inner surface between, that is, the cage sliding surface (1b), is formed into a spherical surface whose inner diameter is maximum at the axial middle, and has an undercant portion (LC) smaller in diameter than the maximum inner diameter on the open end side. In addition, the one shown is trunk@(la)
However, the present invention can also be applied to the molding of an outer ring (1) having a straight type trunk groove (LA) 1 as shown by the imaginary line in FIG. 1 without such an undercut. (1) is 1, track #(
Form a concave t14c2a)f corresponding to la)lc, insert the forming punch (3) into the cup-shaped material (2), and press the material (2).
1 from the bottom side〃1 to the open end side of the molding die (4)
The punch (3) is formed by ironing from the outer periphery, and in this case, the punch (3) has a tapered nine mandrel (on the outer periphery of side 3a, a track groove (1a) as shown in Fig. 3). and a plurality of collets (3b) having a shaped surface that matches the sliding surface (lb) of the cage. These collets (3b') 7] are molded into a female mold by a diameter-reducing action by the upward movement of the collet (3b'). In this case, the concave groove (2aXiJll
The dimensions of the corresponding part of the extrusion punch are made large so that the clearance of the inner surface part (2b) of the molding punch (3) becomes larger near the round bottom part past the effective length part of track #(la). The material (2) is formed by inserting the forming punch (3) into the material (2), and a second punch is formed between the inner surface portion 1 (2b) near the bottom and the pan (3).
As shown in the figure and FIG. 4, an escape space (5) for the material is formed.
尚、凹溝（２ａ）の成形パンチ（３１ｌｃ対するクリア
ランスはその全長に亘り該パンチ（３）の挿入に必要な
微小量に設定し、トラック溝（１ａ）の成形精度全損わ
ないようにした。In addition, the clearance of the concave groove (2a) to the forming punch (31lc) was set to the minute amount necessary for insertion of the punch (3) over its entire length, so as not to completely impair the forming accuracy of the track groove (1a). .
以上の如く、材料の逃げ空Ｉｉ！１（５１ｋ形成すると
、異形ダイ（４）により素材（２）が外周から紋らｎで
材料が内側に寄せられてｔ％底部近傍の内面部分（２ｂ
）は成形パンチ（３）に完全に密着しなくなり。As mentioned above, material escape space Ii! 1 (51k), the material (2) is drawn inward from the outer periphery by the irregular die (4), and the inner surface near the bottom of the t% (2b
) will not completely adhere to the forming punch (3).
空間全残しているが接触しても該部分の密７ｆ匿が低く
なって、成形後に動くスプリングパンク力が低下し、製
品の口開きが抑制さｎ１又該部分はトランク＃Ｉ＃（ｌ
ａ）の有効長部分から外れているため、密着度が低く愈
っても実用上問題はない。Although all the space is left, even if they make contact, the tightness of the part will be lowered, the spring-puncture force that moves after molding will be reduced, and the opening of the product will be suppressed.
Since it is outside the effective length part of a), the degree of adhesion is low and there is no practical problem even if it breaks.
アンダーカット部（１ｃ）は、成形ダイ（４）が成形パ
ンチ（３）の最大径部を通過する迄に該ダイ（４）にＬ
リレごき出された素材（２）の余肉材料が該ダイ（４）
により内側に寄せられて形成されるもので、この部分で
の材料の該パンチ（３）への密着度は低下するが、上記
の如くスプリングバックによる製品のＯ開きが抑制さｎ
るため、内面の形状精度は実用上問題とならない程度に
向上される。The undercut portion (1c) is formed by forming an L into the forming die (4) until the forming die (4) passes through the maximum diameter portion of the forming punch (3).
The excess material of the raw material (2) is transferred to the die (4).
The adhesiveness of the material to the punch (3) at this part is reduced, but as mentioned above, the opening of the product due to springback is suppressed.
Therefore, the shape accuracy of the inner surface is improved to the extent that it does not pose a problem in practice.
（発明の効果）
以上の如く本発明によるときは、アンダーカット部を有
する等速ジヨイント外輪を形状精度良く成形でき、而も
その手段は素材の底部近傍の内面部分と成形パンチとの
間のクリアランスを大きく取るだけであり、コスト的に
も有利である効果１ｒ：有する。(Effects of the Invention) As described above, according to the present invention, it is possible to form a constant velocity joint outer ring having an undercut portion with high shape accuracy, and the means for doing so is to improve the clearance between the inner surface near the bottom of the material and the forming punch. It has the effect 1r: which is advantageous in terms of cost because it only increases the value of .
第１図は本発明に工り得られる等速ジヨイント外輪の裁
断側面図、第２図は本発明の成形方法を説明する第３図
の■−■線で裁断し九截断側面図、第３図及び第４図は
夫々第２図のｍ−■線及びＩＶ−ＩＶ線截裁断面図であ
る。
（１）・・・等速ジヨイント外輪
（ｌａ）・・・トラック溝 （１ｏ）・・・アンダーカ
ット部（２）・・・素材 （２ｓ）・・・凹溝
（２ｂ）・・・内部部分 （３） ・・・成形パン
チ（５）・・・逃げ空間
外２名
第１図
第３図
第２図Fig. 1 is a cut side view of a constant velocity joint outer ring produced by the present invention, Fig. 2 is a side view cut along the line ■-■ of Fig. 3, explaining the forming method of the present invention; This figure and FIG. 4 are sectional views taken along lines m--■ and IV--IV in FIG. 2, respectively. (1)...Constant velocity joint outer ring (la)...Track groove (1o)...Undercut portion (2)...Material (2s)...Concave groove (2b)...Internal part (3) ... Forming punch (5) ... 2 people outside the escape space Figure 1 Figure 3 Figure 2
Claims (1)
内径より小径のアンダーカット部を有する等速ジョイン
ト外輪の成形方法であって、トラック溝用の凹溝を形成
したカップ状素材に成形パンチを挿入して、該素材を外
周からしごき成形するようにしたものにおいて、該素材
の該凹溝間の内面部分の該パンチに対するクリアランス
をトラック溝の有効長部分を過ぎた該素材の底部近傍に
おいて大きく設定し、しごき成形時の材料の逃げ空間を
形成したことを特徴とする等速ジョイント外輪の成形方
法。A method for forming a constant velocity joint outer ring having a track groove on the inner surface and an undercut portion having a smaller diameter than the maximum inner diameter of the inner surface on the open end side, the method comprising applying a forming punch to a cup-shaped material in which a concave groove for the track groove is formed. In a device in which the material is inserted and ironed from the outer periphery, the clearance between the inner surface of the material between the grooves and the punch is increased near the bottom of the material past the effective length of the track groove. A method for forming a constant velocity joint outer ring, characterized by forming an escape space for material during ironing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61107848A JPH0685965B2 (en) | 1986-05-12 | 1986-05-12 | Constant velocity joint outer ring molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61107848A JPH0685965B2 (en) | 1986-05-12 | 1986-05-12 | Constant velocity joint outer ring molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62263841A true JPS62263841A (en) | 1987-11-16 |
| JPH0685965B2 JPH0685965B2 (en) | 1994-11-02 |
Family
ID=14469592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61107848A Expired - Fee Related JPH0685965B2 (en) | 1986-05-12 | 1986-05-12 | Constant velocity joint outer ring molding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0685965B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944138A (en) * | 1982-09-06 | 1984-03-12 | Pioneer Electronic Corp | Demodulator of frequency modulation stereophonic signal |
-
1986
- 1986-05-12 JP JP61107848A patent/JPH0685965B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944138A (en) * | 1982-09-06 | 1984-03-12 | Pioneer Electronic Corp | Demodulator of frequency modulation stereophonic signal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0685965B2 (en) | 1994-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1135626B1 (en) | A piston or plunger and a method for making the same | |
| CN110314953A (en) | A kind of oscillating bearing extrusion die of multisection type cone curved surface | |
| US5186082A (en) | Ironing punch for making socket of ball-and-socket joint and method of manufacturing such ironing punch | |
| JPS632531A (en) | Manufacture of spur gear | |
| JP3719481B2 (en) | Manufacturing method of outer ring part in constant velocity universal shaft joint | |
| JPS62263841A (en) | Formation of outer wheel for constant velocity joint | |
| JPS5852729B2 (en) | Method for forging parts with undercuts | |
| GB999526A (en) | Improvements in ball bearing and their manufacture | |
| JPS6316823A (en) | Manufacture of can drum | |
| JPS6092034A (en) | Cold-warm forging of slug of engine valve | |
| US6422946B1 (en) | Universal joint outer race and method for manufacturing the same | |
| JPS62110831A (en) | Forming method for inner wheel of uniform joint | |
| US2611154A (en) | Method of pressing blanks of molded pulp | |
| JPS5926381B2 (en) | Manufacturing method of tightening roller type coaster type coupling sleeve | |
| US6438844B2 (en) | Method and apparatus for manufacturing constant velocity joints | |
| JPS5850147A (en) | Manufacture of outer race for barfield type uniform speed joint | |
| JPH0289533A (en) | Forming method for synchronous joint | |
| JP2007196259A (en) | Forging apparatus and forging method | |
| JPS59197335A (en) | Forming method of blank material for bearing | |
| JPH04228238A (en) | Manufacture of outer ring in uniform coupling | |
| JP6169765B1 (en) | Forging method and forging die set | |
| JPS6156736A (en) | Production of metallic can having bulging part on body part | |
| SU944711A1 (en) | Hollow ball production machine | |
| JPS61140340A (en) | Manufacture of multigrooved v-pulley with separating band | |
| JP3724551B2 (en) | Cup-shaped member molding method, molding apparatus, and preformed coarse material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |