JPH07171744A - Method for crowning of roller-shaped rolling member - Google Patents
Method for crowning of roller-shaped rolling memberInfo
- Publication number
- JPH07171744A JPH07171744A JP18277492A JP18277492A JPH07171744A JP H07171744 A JPH07171744 A JP H07171744A JP 18277492 A JP18277492 A JP 18277492A JP 18277492 A JP18277492 A JP 18277492A JP H07171744 A JPH07171744 A JP H07171744A
- Authority
- JP
- Japan
- Prior art keywords
- crowning
- initial
- tumbler
- roller
- super
- 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
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、円筒ころ、ニードルこ
ろ等の軸受転動体やガイドローラ等のローラ状転がり部
材にクラウニングを施すための加工方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a working method for crowning a roller-like rolling member such as a bearing roller such as a cylindrical roller or a needle roller or a guide roller.
【０００２】[0002]
【従来の技術】例えば、ころ軸受にあっては、軌道輪と
ころとの接触部に生じるエッジロード（集中荷重）を防
止するため、ころの両端部に僅かな曲率をもたせたクラ
ウニングを形成するのが通常である。従来、ころのクラ
ウニングは、芯無し研削盤等による研削加工、あるい
は、タンブラー加工（種々の形状の樽に加工物と研磨剤
等を一緒に入れ、樽を回転させて加工する方法。）によ
り形成されていた。2. Description of the Related Art For example, in a roller bearing, in order to prevent an edge load (concentrated load) occurring at a contact portion with a bearing ring, crowning having a slight curvature is formed at both ends of the roller. Is normal. Conventionally, roller crowning is formed by grinding using a coreless grinder or the like, or by tumbling (a method in which the work and abrasives are put together in barrels of various shapes and the barrels are rotated to process). It had been.
【０００３】[0003]
【発明が解決しようとする課題】研削加工によれば、ク
ラウニングの精度確保は容易であるが、加工時間が長
く、作業性に難がある。また、図４に示すように、ころ
１１の外径部１１ａとクラウニングＣ’ｅとの境界部１
１ｂにエッジが残り易い。According to the grinding process, it is easy to ensure the accuracy of crowning, but the working time is long and workability is difficult. Further, as shown in FIG. 4, the boundary portion 1 between the outer diameter portion 11a of the roller 11 and the crowning C'e is
Edges tend to remain on 1b.
【０００４】一方、タンブラー加工は、作業性が良く、
エッジも残りにくいが、高精度確保が困難である。On the other hand, tumbler processing has good workability,
Edges are less likely to remain, but it is difficult to ensure high precision.
【０００５】そこで、本発明の目的は、ローラ状転がり
部材にクラウニングを施すに際し、精度の確保と作業性
の向上とを同時に達成し得る加工方法を提供することに
ある。SUMMARY OF THE INVENTION An object of the present invention is to provide a processing method capable of simultaneously securing precision and improving workability when crowning a roller-shaped rolling member.
【０００６】[0006]
【課題を解決するための手段】本発明では、ローラ状転
がり部材の端部に、予めタンブラー加工により大略寸法
の初期クラウニング部を形成し、この初期クラウニング
部を超仕上げ加工により最終のクラウニングに仕上げる
ようにした。According to the present invention, an initial crowning portion having a substantially large size is previously formed by tumbling at the end of a roller-like rolling member, and the final crowning is finished by superfinishing. I did it.
【０００７】[0007]
【作用】初期クラウニング部は、最終のクラウニングに
ある程度の取り代を残した大略寸法の状態であり、必要
とするクラウニング量の相当部分はタンブラー加工の段
階で取り除かれる。この初期クラウニング部は寸法精度
では劣るが、その形状は滑らかでエッジは残存しない。
初期クラウニング部は、超仕上げ加工により最終のクラ
ウニングに仕上げられる。そのため、最終のクラウニン
グは寸法精度が高くしかもエッジが残らない。また、必
要とするクラウニング量の相当部分がタンブラー加工の
段階で取り除かれるので、従来方法に比べ、加工時間も
短い。The initial crowning portion is in a state in which the final crowning has a certain margin, and a considerable amount of the required crowning amount is removed at the stage of tumbler processing. Although this initial crowning portion is inferior in dimensional accuracy, its shape is smooth and no edge remains.
The initial crowning section is finished to the final crowning by super finishing. Therefore, the final crowning has high dimensional accuracy and no edge remains. Further, since a considerable portion of the required crowning amount is removed at the stage of tumbler processing, the processing time is shorter than that of the conventional method.
【０００８】[0008]
【実施例】以下、本発明の実施例について説明する。EXAMPLES Examples of the present invention will be described below.
【０００９】図１に示すように、本発明の加工方法は、
タンブラー工程と超仕上げ工程の２工程からなる。タン
ブラー工程は、例えば図２に示す円筒ころ軸受の円筒こ
ろ素材１と研磨剤とをタンブラーに入れて数時間回転さ
せ、円筒ころ素材１の両端部に初期クラウニング部Ｃｏ
を形成する工程である。初期クラウニング部Ｃｏは、最
終のクラウニングに至るまでの大略寸法の状態である
が、必要とするクラウニング量の大部分はこのタンブラ
ー工程によって取り除かれる。タンブラー工程が完了す
ると、超仕上げ工程に入る。超仕上げ工程は、初期クラ
ウニング部Ｃｏを最終のクラウニングに仕上げる工程で
ある。超仕上げ機により、まず、初期クラウニング部Ｃ
ｏを仕上げ、次に、外径部１ａを仕上げる。超仕上げ機
による通しスピードは従来の５〜６倍程度である。As shown in FIG. 1, the processing method of the present invention is
It consists of a tumbler process and a super-finishing process. In the tumbler process, for example, the cylindrical roller material 1 of the cylindrical roller bearing shown in FIG. 2 and an abrasive are put in a tumbler and rotated for several hours, and the initial crowning portion Co is applied to both ends of the cylindrical roller material 1.
Is a step of forming. The initial crowning portion Co is in a substantially dimensional state until the final crowning, but most of the required crowning amount is removed by this tumbler process. When the tumbler process is completed, the super finishing process is started. The super-finishing step is a step of finishing the initial crowning portion Co into the final crowning. With the super finishing machine, first, the initial crowning part C
Then, the outer diameter portion 1a is finished. The passing speed by the super finishing machine is about 5 to 6 times faster than the conventional one.
【００１０】図３に示すように、以上の工程を経て形成
された最終のクラウニングＣｅは、高い精度を有し、し
かも、外径部１ａとの境界部１ｂがきわめて滑らかで、
エッジが残存しない。As shown in FIG. 3, the final crowning Ce formed through the above steps has high accuracy, and the boundary portion 1b with the outer diameter portion 1a is extremely smooth.
No edges remain.
【００１１】本発明の加工方法は、クラウニングの精度
を確保できるばかりでなく、タンブラー工程による加工
時間が従来の１／２〜１／３程度であり、しかも、超仕
上げ機の通しスピードが従来の５〜６倍程度であるた
め、加工時間はかなり短縮される。The processing method of the present invention can not only ensure the accuracy of crowning, but also the processing time by the tumbler process is about 1/2 to 1/3 of that of the conventional one, and the passing speed of the super finishing machine is the same as that of the conventional one. Since it is about 5 to 6 times, the processing time is considerably shortened.
【００１２】尚、発明は円筒ころに限らず、ニードルこ
ろ等の軸受転動体、ガイドローラ等のローラ状転がり部
材一般に適用することができる。The invention is not limited to cylindrical rollers, but can be applied to bearing rolling elements such as needle rollers and roller-like rolling members such as guide rollers in general.
【００１３】[0013]
【発明の効果】以上説明したように、本発明によれば、
ローラ状転がり部材の端部に予めタンブラーにより初期
クラウニング部を形成し、この初期クラウニング部を超
仕上げにより最終のクラウニングに仕上げるようにした
ので、従来方法に比べ、短時間でしかも精度の高いクラ
ウニングを形成することができる。As described above, according to the present invention,
The initial crowning part is formed in advance by the tumbler on the end of the roller-shaped rolling member, and this initial crowning part is finished to the final crowning by super-finishing. Can be formed.
【図１】本実施例の加工工程を示す図である。FIG. 1 is a diagram showing a processing step of the present embodiment.
【図２】初期クラウニングを示す図である。FIG. 2 is a diagram showing initial crowning.
【図３】最終のクラウニングを示す図である。FIG. 3 is a diagram showing final crowning.
【図４】従来方法に係わるクラウニングを示す図であ
る。FIG. 4 is a diagram showing crowning according to a conventional method.
１ ローラ状転がり部材（円筒ころ） Ｃｏ 初期クラウニング Ｃｅ 最終のクラウニング 1 Rolling member (cylindrical roller) Co Initial crowning Ce Final crowning
Claims (1)
グを施すに際し、予めタンブラー加工により大略寸法の
初期クラウニング部を形成し、この初期クラウニング部
を超仕上げ加工により最終のクラウニングに仕上げるこ
とを特徴とするローラ状転がり部材のクラウニング加工
方法。1. When the end portion of the roller-shaped rolling member is crowned, an initial crowning portion of approximately the size is formed beforehand by tumbling, and this initial crowning portion is finished into a final crowning by superfinishing. A method for crowning a roller-like rolling member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18277492A JPH07171744A (en) | 1992-07-10 | 1992-07-10 | Method for crowning of roller-shaped rolling member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18277492A JPH07171744A (en) | 1992-07-10 | 1992-07-10 | Method for crowning of roller-shaped rolling member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07171744A true JPH07171744A (en) | 1995-07-11 |
Family
ID=16124187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18277492A Pending JPH07171744A (en) | 1992-07-10 | 1992-07-10 | Method for crowning of roller-shaped rolling member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07171744A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017026000A (en) * | 2015-07-21 | 2017-02-02 | Ntn株式会社 | Super-finishing method for roller bearing rolling surface |
-
1992
- 1992-07-10 JP JP18277492A patent/JPH07171744A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017026000A (en) * | 2015-07-21 | 2017-02-02 | Ntn株式会社 | Super-finishing method for roller bearing rolling surface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH06246546A (en) | Manufacture of bearing ring for rolling bearing | |
| US20040264825A1 (en) | Superfinishing machine, superfinishing method, rolling element and rolling bearing | |
| US20070178808A1 (en) | Method and device for grinding assembled camshafts with a high concentricity accuracy | |
| JPH07171744A (en) | Method for crowning of roller-shaped rolling member | |
| CN210938276U (en) | Centering shaft for supporting bearing inner ring during super-finishing | |
| CN217122757U (en) | Spline equipment of polishing | |
| JP4131156B2 (en) | Super-finish polishing method of annular groove of raceway with grinding wheel | |
| EP0844046A2 (en) | A process for machining an edge portion of a ceramic article preform without chipping | |
| US2409320A (en) | Grinding of rollers | |
| JPH09225510A (en) | Method for grinding rolling roll for cold-rolling stainless steel | |
| JP3534267B2 (en) | Super finishing wheel and super finishing grinding method | |
| JP3539770B2 (en) | Roller for self-aligning roller bearing and its processing method | |
| JP2005090615A (en) | Automatic centering roller bearing and machining method thereof | |
| JPS6028628B2 (en) | Machining method for integral double-row tapered roller bearing outer ring | |
| JPH0413560A (en) | Grinding method for valve switch cam of cam shaft | |
| JPH0655423A (en) | Grinding method for long spline shaft | |
| JP2000176809A (en) | Method for working end face of spectacle lens | |
| JPH0666956U (en) | Bearing rolling groove Super finishing grindstone | |
| JPS5846370B2 (en) | Colono Crowning Hohou | |
| JPH05337820A (en) | Method of mirror-surface finishing outer surface of roller | |
| JPS6161760A (en) | Surface machining method of crankshaft | |
| JPH04284905A (en) | Surface treatment of mandrel bar for rolling seamless steel tube | |
| JP2001082492A (en) | Swivel base bearing and its manufacture | |
| JPH05306719A (en) | Rolling element | |
| JPH048174B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20021009 |