JPH08309468A - Method for machining irregular shaped ring - Google Patents

Method for machining irregular shaped ring

Info

Publication number
JPH08309468A
JPH08309468A JP7120961A JP12096195A JPH08309468A JP H08309468 A JPH08309468 A JP H08309468A JP 7120961 A JP7120961 A JP 7120961A JP 12096195 A JP12096195 A JP 12096195A JP H08309468 A JPH08309468 A JP H08309468A
Authority
JP
Japan
Prior art keywords
end side
roll
ring
mandrel
spinning
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
Application number
JP7120961A
Other languages
Japanese (ja)
Other versions
JP3692559B2 (en
Inventor
Akihito Kitou
亮仁 鬼頭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP12096195A priority Critical patent/JP3692559B2/en
Publication of JPH08309468A publication Critical patent/JPH08309468A/en
Application granted granted Critical
Publication of JP3692559B2 publication Critical patent/JP3692559B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To provide a machining method for an irregular shaped ring such that a difference in size is eliminated between the bore diameter of the fixed end side and that of the free end side of a ring-shaped stock, and that the end face is free from scratches on the fixed end side of the stock. CONSTITUTION: In forming an irregular shaped ring having ruggedness on the outer face by backward spinning, the method is constituted of a grooving process, in which an annular groove 7 with the lower part of the groove shaped in a pointed-end on the outer circumferential side is plurally formed in the axial direction, by pressing and rolling down a spinning roll 5 against the outer face of the ring-shaped stock W mounted on a mandrel 1 and rotated and also by crossfeeding by a prescribed quantity to the free end side of the stock, and of a flat machining process in which the lower part of the annular groove is formed into a flat face by rolling down by a flattening roll.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、外面に凹凸のある異
形リングの加工方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for processing a deformed ring having an uneven outer surface.

【0002】[0002]

【従来の技術】外面に凹凸のある異形リングを加工する
方法として、従来から後方スピニング加工法が知られて
いる。
2. Description of the Related Art As a method of processing a deformed ring having irregularities on its outer surface, a backward spinning processing method has been conventionally known.

【0003】[0003]

【発明が解決しようとする課題】ところで、前記の後方
スピニング加工法では、スピニングロールをマンドレル
上に装着されて回転するリング状素材の外面に押し付け
て圧下しながら、該素材の固定端部側近くまで寄せるの
で、マンドレルのフランジ部と該フランジ部に当接され
る素材の固定端部側の端面との間に拘束力が働き、素材
の幅方向の固定端部側の内径Aと自由端部側の内径Bと
の間にA>Bとなる内径寸法差が発生する。そのため、
素材が自由端部側から飛出してマンドレルから外れてし
まい、疵がついて製品価値を落とすという問題点があっ
た。また、素材の固定端部側に側圧がかかり、マンドレ
ルのフランジ部と当接する素材の固定端部側の端面に疵
がつき易いという問題点もあった。
By the way, in the above-mentioned backward spinning method, the spinning roll is mounted on the mandrel and pressed against the outer surface of the rotating ring-shaped material while pressing the spinning roll near the fixed end side of the material. Since the mandrel is pushed up to the upper end, a restraining force is exerted between the flange portion of the mandrel and the end surface on the fixed end portion side of the material that is in contact with the flange portion, and the inner diameter A and the free end portion on the fixed end portion side in the width direction of the material A difference in inner diameter such that A> B is generated between the inner diameter B on the side. for that reason,
There was a problem that the material jumps out from the free end side and comes off the mandrel, causing flaws and reducing the product value. In addition, there is a problem that lateral pressure is applied to the fixed end side of the material, and the end surface of the material that contacts the flange portion of the mandrel is easily scratched.

【0004】そこでこの発明は、前記のような従来の問
題点を解決することができ、素材の固定端部側の内径と
自由端部側の内径との間に内径寸法差が発生することが
なく、しかも素材の固定端部側の端面に疵がつかない異
形リングの加工方法を提供することを目的とする。
Therefore, the present invention can solve the above-mentioned conventional problems, and an inner diameter dimensional difference may occur between the inner diameter of the material on the fixed end side and the inner diameter of the free end side. It is an object of the present invention to provide a method of processing a deformed ring that does not have a flaw on the end surface of the material on the fixed end side.

【0005】[0005]

【課題を解決するための手段】前記目的を達成するた
め、この発明の異形リングの加工方法は、外面に凹凸の
ある異形リングを後方スピニング加工法により成形する
に際し、マンドレル上に装着されて回転するリング状素
材の外面に対して間歇的にスピニングロールを押し付け
て圧下し、かつ素材の自由端部側へ所定量横送りするこ
とにより、外周側の溝山部が尖端状となった環状溝を軸
方向に複数個形成する溝入れ加工工程と、環状溝の溝山
部をフラット化ロールで圧下することによりフラットな
面に形成するフラット加工工程とからなることを特徴と
する。
In order to achieve the above-mentioned object, the method for processing a deformed ring according to the present invention is such that when a deformed ring having an uneven outer surface is formed by a backward spinning method, it is mounted on a mandrel and rotated. An annular groove in which the groove peaks on the outer peripheral side have a pointed shape by intermittently pressing the spinning roll against the outer surface of the ring-shaped material and pressing it down and laterally feeding it to the free end side of the material. It is characterized in that it comprises a grooving process step of forming a plurality of grooves in the axial direction and a flat machining process of forming a flat surface by pressing down the groove crests of the annular groove with a flattening roll.

【0006】[0006]

【作用】前記のようにスピニングロールの圧下に際し、
素材の自由端部側へ所定量横送りするので、マンドレル
のフランジ部と該フランジ部に当接される素材の固定端
部側の端面との間に拘束力が働くようなことがなく、素
材の固定端部側の内径と自由端部側の内径との間に内径
寸法差が発生するようなことがない。しかも素材の固定
端部側に側圧がかかることがなく、マンドレルのフラン
ジ部と当接する素材の固定端部側の端面に疵がつくこと
もない。
[Operation] When the spinning roll is pressed down as described above,
Since the material is laterally fed to the free end side by a predetermined amount, the binding force does not act between the flange portion of the mandrel and the end surface on the fixed end side of the material that is in contact with the flange portion. There is no difference in inner diameter between the inner diameter on the fixed end side and the inner diameter on the free end side. Moreover, no lateral pressure is applied to the fixed end side of the material, and no flaws are formed on the end surface on the fixed end side of the material that abuts the flange portion of the mandrel.

【0007】[0007]

【実施例】図1はこの発明の一実施例を示す正面図、図
2はスピニングロールの部分拡大正面図、図3はフラッ
ト化ロールの部分拡大正面図である。1は後方スピニン
グ加工法で用いられるマンドレルで、リング状素材Wの
固定端部側の端面が当接するフランジ部2を有してい
る。後方スピニング加工法ではマンドレル1のほかに
も、1対のセンタリングローラ等が用いられるが、これ
らは図示省略している。図2に示すスピニングロール5
は溝形成が容易なようにその外周面のロール角度θ1が4
5°に形成されている。図3に示すフラット化ロール6
は外周面が全くのフラットな面ではなく、スピニングロ
ール5で形成される後記環状溝7の溝山部8に対する平
滑化が容易なようにその外周面のロール角度θ2が5°
〜6°に形成されている。また、フラット化ロール6の
外周面は溝山部8の底面とほぼ対応する横幅からなって
いる。
1 is a front view showing an embodiment of the present invention, FIG. 2 is a partially enlarged front view of a spinning roll, and FIG. 3 is a partially enlarged front view of a flattening roll. Reference numeral 1 denotes a mandrel used in the backward spinning method, which has a flange portion 2 with which the end surface of the ring-shaped material W on the fixed end side abuts. In the backward spinning method, a pair of centering rollers and the like are used in addition to the mandrel 1, but these are not shown. Spinning roll 5 shown in FIG.
The roll angle θ 1 of the outer peripheral surface is 4 to facilitate groove formation.
It is formed at 5 °. Flattening roll 6 shown in FIG.
The outer peripheral surface is not a completely flat surface, and the roll angle θ 2 of the outer peripheral surface is 5 ° so that the annular groove 7 formed by the spinning roll 5 can be easily smoothed with respect to the groove crests 8.
It is formed at ~ 6 °. Further, the outer peripheral surface of the flattening roll 6 has a lateral width substantially corresponding to the bottom surface of the groove portion 8.

【0008】図1のようにマンドレル1上に装着される
リング状素材Wは後方スピニング加工法による成形に際
し、高周波誘導加熱により800℃程度の温度に加熱され
ている。そしてマンドレル1が所定の周速で回転され
て、その上に装着された素材Wも回転するようになった
後、素材Wの外面に対して図4(A)に示すようにその自
由端部近くにまずスピニングロール5を押し付けて圧下
し、環状溝7を形成する。このスピニングロール5の圧
下に際し、図5に示すように圧下量が大きくなるにした
がい素材Wの自由端部側へ所定量(δ)横送りする。す
なわち、この横送り量は、例えばステップ1で加工量
(圧下量)1mmに対して0mm、ステップ2で加工量2mm
に対して0.2mm、ステップ3で加工量3mmに対して0.4m
m、ステップ4で加工量4mmに対して0.7mmのように設定
されており、横送りは各ステップ毎に圧下後に所定の停
止時間(例えば5秒)をおいて間歇的に行われる。
As shown in FIG. 1, the ring-shaped material W mounted on the mandrel 1 is heated to a temperature of about 800 ° C. by high frequency induction heating during the forming by the backward spinning method. Then, after the mandrel 1 is rotated at a predetermined peripheral speed and the material W mounted on the mandrel 1 is also rotated, the mandrel 1 is rotated with respect to the outer surface of the material W as shown in FIG. 4 (A). First, the spinning roll 5 is pressed close to and pressed down to form the annular groove 7. When the spinning roll 5 is rolled down, as shown in FIG. 5, the material W is laterally fed by a predetermined amount (δ) toward the free end side as the rolling amount increases. That is, this lateral feed amount is, for example, 0 mm for the processing amount (rolling down amount) of 1 mm in step 1, and the processing amount of 2 mm in step 2.
To 0.2mm, and in step 3 0.4mm to 3mm
In step 4, the processing amount is set to 0.7 mm with respect to the processing amount of 4 mm, and the lateral feed is intermittently performed with a predetermined stop time (for example, 5 seconds) after reduction in each step.

【0009】前記の横送りによりマンドレル1のフラン
ジ部2と該フランジ部に当接される素材Wの固定端部側
の端面との間には従来のような拘束力が働くようなこと
がない。そのために素材Wの内径変化は固定端部側と自
由端部側ともほぼ同じであり、固定端部側の内径と自由
端部側の内径との間に内径寸法差が発生するようなこと
がなくなる。また、素材Wの固定端部側にも側圧がかか
ることがない。そのためにマンドレル1のフランジ部2
と当接する素材Wの固定端部側の端面に疵がつくことも
ない。このようにしてスピニングロール5を環状溝7を
1つ形成する毎に押し付けを→→というように自
由端部側から中間部側へ間歇的に繰り返すことにより、
図4(B)に示すように外周側の溝山部8が尖端状となっ
た環状溝7を軸方向に複数個形成する。
Due to the above-mentioned lateral feed, no restraining force is exerted between the flange portion 2 of the mandrel 1 and the end surface on the fixed end portion side of the material W which is in contact with the flange portion, unlike the conventional case. . Therefore, the change of the inner diameter of the material W is almost the same on both the fixed end side and the free end side, and an inner diameter dimensional difference may occur between the inner diameter on the fixed end side and the inner diameter on the free end side. Disappear. Further, no lateral pressure is applied to the fixed end side of the material W. Therefore, the flange part 2 of the mandrel 1
The end surface on the fixed end side of the material W that comes into contact with is not scratched. In this way, by pressing the spinning roll 5 every time one annular groove 7 is formed, such as →→ intermittently repeating from the free end side to the intermediate side,
As shown in FIG. 4 (B), a plurality of annular grooves 7 are formed in the axial direction in which the groove portions 8 on the outer peripheral side are pointed.

【0010】次に、前記のようにスピニング加工により
素材Wの外面に形成された複数個の環状溝7の溝山部8
をフラット化ロール6の外周面で叩くように圧下する。
このフラット化ロール6による圧下を→というよう
に自由端部側から順に行うことにより、素材Wの外面は
図4(C)に示すように尖端状の溝山部8がつぶされて外
周側に凹凸のないフラットな面に形成される。この溝山
部8がつぶされてなくなるぶん、素材Wの幅はいくぶん
延びるが、溝山部8の底面とほぼ対応する横幅の外周面
を有し、局部加工が可能なフラット化ロール6で圧下す
るため、素材Wの径変化は極力抑えられる。そのためこ
の段階においても素材Wの内径変化は固定端部側と自由
端部側ともほぼ同じである。前記加工に際し、センタリ
ングローラ等による素材Wに対するセンタリング圧力は
常に一定である。
Next, the groove crests 8 of the plurality of annular grooves 7 formed on the outer surface of the material W by the spinning process as described above.
Is pressed down so as to hit the outer peripheral surface of the flattening roll 6.
By performing the reduction by the flattening roll 6 in order from the free end side such as →, the outer surface of the material W is crushed by the pointed groove crests 8 as shown in FIG. It is formed on a flat surface without irregularities. The width of the material W extends to some extent so that the groove crests 8 are crushed and disappear, but the material W has an outer peripheral surface having a lateral width substantially corresponding to the bottom surface of the groove crests 8 and is pressed by the flattening roll 6 capable of local processing. Therefore, the diameter change of the material W is suppressed as much as possible. Therefore, even at this stage, the change in the inner diameter of the material W is substantially the same on the fixed end side and the free end side. During the processing, the centering pressure on the material W by the centering roller or the like is always constant.

【0011】尚、前記実施例において環状溝7の個数は
任意であり、成形する異形リングにより適宜変更され
る。また、横送り量(δ)も素材Wの性状等により適宜
最適なものに設定されることは言うまでもない。
In the above embodiment, the number of the annular grooves 7 is arbitrary and can be changed appropriately depending on the profiled ring to be molded. Needless to say, the lateral feed amount (δ) is also set to an optimum value depending on the properties of the material W and the like.

【0012】[0012]

【発明の効果】この発明は前記のようであって、外面に
凹凸のある異形リングを後方スピニング加工法により成
形するに際し、マンドレル上に装着されて回転するリン
グ状素材の外面に対して間歇的にスピニングロールを押
し付けて圧下し、かつ素材の自由端部側へ所定量横送り
することにより、外周側の溝山部が尖端状となった環状
溝を軸方向に複数個形成する溝入れ加工工程と、環状溝
の溝山部をフラット化ロールで圧下することによりフラ
ットな面に形成するフラット加工工程とからなるので、
マンドレルのフランジ部と該フランジ部に当接される素
材の固定端部側の端面との間に拘束力が働くようなこと
がなく、素材の固定端部側の内径と自由端部側の内径と
の間に内径寸法差が発生するようなことがない。したが
って、従来のように素材が自由端部側から飛出してマン
ドレルから外れるという事態が防止され、疵のない製品
を提供することができる。また、素材の固定端部側に側
圧がかかることがないので、マンドレルのフランジ部と
当接する素材の固定端部側の端面に疵がつくこともな
く、製品価値をより高めることができるという優れた効
果がある。
As described above, according to the present invention, when a deformed ring having irregularities on the outer surface is formed by the backward spinning method, the outer surface of the ring-shaped material mounted on the mandrel and rotated is intermittent. Grooving to form multiple annular grooves in the axial direction with the tip of the groove on the outer peripheral side being pressed by pressing a spinning roll against and rolling it laterally to the free end side of the material. Since it consists of a step and a flat processing step of forming a flat surface by rolling down the groove crest portion of the annular groove with a flattening roll,
There is no binding force acting between the flange part of the mandrel and the end surface of the material that is in contact with the flange part and that is on the fixed end side of the material, and the inner diameter of the material on the fixed end side and the inner diameter of the free end side. There is no difference in inner diameter between the and. Therefore, it is possible to prevent the material from popping out from the free end side and coming off the mandrel as in the conventional case, and it is possible to provide a flawless product. In addition, since the fixed end of the material is not subjected to lateral pressure, the end surface of the fixed end of the material that comes into contact with the flange of the mandrel does not have a flaw and the product value can be further improved. There is an effect.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の一実施例を示す正面図である。FIG. 1 is a front view showing an embodiment of the present invention.

【図2】スピニングロールの部分拡大正面図である。FIG. 2 is a partially enlarged front view of a spinning roll.

【図3】フラット化ロールの部分拡大正面図である。FIG. 3 is a partially enlarged front view of a flattening roll.

【図4】(A)ないし(C)はその加工工程順を示す作用図
である。
4 (A) to 4 (C) are operation diagrams showing the order of processing steps.

【図5】スピニングロールの横送りを該ロール軌跡によ
り説明する図面である。
FIG. 5 is a view for explaining lateral feeding of a spinning roll by means of the roll locus.

【符号の説明】[Explanation of symbols]

1 マンドレル 2 フランジ部 5 スピニングロール 6 フラット化ロール 7 環状溝 8 溝山部 W リング状素材 1 Mandrel 2 Flange portion 5 Spinning roll 6 Flattening roll 7 Annular groove 8 Groove portion W Ring material

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 外面に凹凸のある異形リングを後方スピ
ニング加工法により成形するに際し、マンドレル上に装
着されて回転するリング状素材の外面に対して間歇的に
スピニングロールを押し付けて圧下し、かつ素材の自由
端部側へ所定量横送りすることにより、外周側の溝山部
が尖端状となった環状溝を軸方向に複数個形成する溝入
れ加工工程と、前記環状溝の溝山部をフラット化ロール
で圧下することによりフラットな面に形成するフラット
加工工程とからなることを特徴とする異形リングの加工
方法。
1. When molding a deformed ring having irregularities on the outer surface by a backward spinning method, a spinning roll is intermittently pressed against the outer surface of a ring-shaped material mounted on a mandrel and rotating, and A grooving step of axially forming a plurality of annular grooves having a pointed outer peripheral groove portion by laterally feeding the material to a free end side by a predetermined amount, and the groove portion of the annular groove. And a flattening process for forming a flat surface by pressing down the flattened roll with a flattening roll.
JP12096195A 1995-05-19 1995-05-19 Processing method of irregular ring Expired - Fee Related JP3692559B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12096195A JP3692559B2 (en) 1995-05-19 1995-05-19 Processing method of irregular ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12096195A JP3692559B2 (en) 1995-05-19 1995-05-19 Processing method of irregular ring

Publications (2)

Publication Number Publication Date
JPH08309468A true JPH08309468A (en) 1996-11-26
JP3692559B2 JP3692559B2 (en) 2005-09-07

Family

ID=14799288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12096195A Expired - Fee Related JP3692559B2 (en) 1995-05-19 1995-05-19 Processing method of irregular ring

Country Status (1)

Country Link
JP (1) JP3692559B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004283917A (en) * 2004-07-12 2004-10-14 Booseikyaputeibu Kk Method for producing spacer
CN103639750A (en) * 2013-11-26 2014-03-19 瓦房店轴承砂轮制造有限公司 Clamp for machining symmetrical workpiece grooves perpendicular to bottom face

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004283917A (en) * 2004-07-12 2004-10-14 Booseikyaputeibu Kk Method for producing spacer
CN103639750A (en) * 2013-11-26 2014-03-19 瓦房店轴承砂轮制造有限公司 Clamp for machining symmetrical workpiece grooves perpendicular to bottom face
CN103639750B (en) * 2013-11-26 2015-12-30 方小刚 Processing Symmetrical vertical bottom surface workpiece grooving jig

Also Published As

Publication number Publication date
JP3692559B2 (en) 2005-09-07

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