JPH0525601B2 - - Google Patents
Info
- Publication number
- JPH0525601B2 JPH0525601B2 JP14910981A JP14910981A JPH0525601B2 JP H0525601 B2 JPH0525601 B2 JP H0525601B2 JP 14910981 A JP14910981 A JP 14910981A JP 14910981 A JP14910981 A JP 14910981A JP H0525601 B2 JPH0525601 B2 JP H0525601B2
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- center
- shaft
- machining
- center hole
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Turning (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はバーフイールド型等速自在継手外輪の
機械加工方法に係り、特にカツプ側の加工基準と
なるセンター穴形状が改良されたバーフイールド
型等速自在継手外輪の機械加工方法に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method of machining the outer ring of a bar field type constant velocity universal joint, and in particular, the present invention relates to a method of machining the outer ring of a bar field type constant velocity universal joint. This invention relates to a method of machining an outer ring of a constant velocity universal joint.
バーフイールド型等速自在継手は、第１図に示
されるように、それぞれボール転動溝を有する外
輪１０及び内輪１２、両輪の間に介在せしめられ
るボール１４、ボール１４を保持するケージ１６
とから主として構成された継手である。
As shown in FIG. 1, the bar field type constant velocity universal joint includes an outer ring 10 and an inner ring 12 each having a ball rolling groove, a ball 14 interposed between the two rings, and a cage 16 that holds the ball 14.
It is a joint mainly composed of.
第２図はこの外輪１０の縦断面図であつて、こ
の外輪１０は、内周壁にボール転動溝１８を有す
る内輪係合用の凹穴状のカツプ２０が設けられて
いる。また他端側にはシヤフト２１が設けられて
いる。このボール転動溝１８は球面とされてお
り、図中Ａはその曲率中心である。 FIG. 2 is a longitudinal cross-sectional view of the outer ring 10, which is provided with a concave cup 20 for engaging the inner ring, which has a ball rolling groove 18 on its inner peripheral wall. Further, a shaft 21 is provided on the other end side. This ball rolling groove 18 has a spherical surface, and A in the figure is its center of curvature.
通常この外輪１０は、円柱状の鋼材をほぼ製品
形状とする塑性加工工程と、さらにこれを機械加
工する工程と、を含む工程によつて製造されてい
る。この機械加工を行なうにはカツプ２０の底部
及びシヤフト２１の端面にはセンター穴が設けら
れる必要がある。 Normally, the outer ring 10 is manufactured by a process including a plastic working process in which a cylindrical steel material is roughly formed into a product shape, and a process in which the same is further machined. To carry out this machining, it is necessary to provide a center hole in the bottom of the cup 20 and the end face of the shaft 21.
従来、第３図に示されるように、カツプ側セン
ター穴２２は、60度テーパーの寸法の小さい形状
とされていたが、シヤフト側センター穴２３をあ
ける際、センター穴の位置を正しい位置とするの
は困難であつた。そのためカツプ側センター穴２
２とシヤフト側センター穴２３を結んだセンター
軸２４がボール転動溝曲率中心Ａを通らないよう
になやすい。センター軸２４がずれたままで機械
加工すると、精度よく加工されているボール転動
溝１８の相対位置がずれてしまい、ほぼ製品形状
とされたバーフイールド型等速自在継手外輪１０
の外部側を精度よく機械加工することができない
という問題が生ずる。
Conventionally, as shown in Fig. 3, the cup side center hole 22 has a 60 degree taper with a small dimension, but when drilling the shaft side center hole 23, the position of the center hole is set at the correct position. It was difficult. Therefore, the cup side center hole 2
2 and the center hole 23 on the shaft side tend not to pass through the center of curvature A of the ball rolling groove. If machining is performed with the center shaft 24 misaligned, the relative position of the accurately machined ball rolling grooves 18 will shift, resulting in the outer ring 10 of the bar field type constant velocity universal joint being almost in the product shape.
A problem arises in that it is not possible to precisely machine the outer side of the
本発明の目的は、このような従来技術の問題点
を解消し、ボール転動溝の相対位置のずれが発生
しないようにして、継手外輪の外部側を高精度に
加工することのできるバーフイールド型等速自在
継手外輪の機械加工方法を提供するにある。 An object of the present invention is to solve the problems of the prior art, and to provide a bar field that can process the outer side of the outer ring of a joint with high precision while preventing the occurrence of deviations in the relative positions of the ball rolling grooves. The present invention provides a method for machining an outer ring of a type constant velocity universal joint.
上記目的を達成するために本発明は、球面状ボ
ール転動溝１８を有する内輪係合用の凹穴状のカ
ツプ２０が内部側に形成され、外部側にシヤフト
２１を有するほぼ製品形状とされたバーフイール
ド型等速自在継手外輪１０の前記外部側を機械加
工する方法であつて、前記カツプ２０の底部に形
成された加工基準用のテーパー状センター穴２２
の円形開口部には、円錐形状のテーパー面２２Ａ
が、該テーパー面２２Ａの同じ高さの２個所から
立てた法線ｈの交点Ｅと前記ボール転動溝１８の
曲率中心Ａとがほぼ一致するように形成されてお
り、前記テーパー面２２Ａと前記シヤフト２１の
端面に形成するシヤフト側センター穴２３とによ
り前記外輪１０を支持して該外輪１０の外部側を
加工することを特徴とするものである。
In order to achieve the above object, the present invention has a cup 20 in the shape of a concave hole for engaging an inner ring having a spherical ball rolling groove 18 formed on the inside side, and a shaft 21 on the outside side, which is almost in the shape of a product. A method of machining the outer side of the outer ring 10 of a bar field type constant velocity universal joint, wherein a tapered center hole 22 for a machining reference is formed at the bottom of the cup 20.
The circular opening has a conical tapered surface 22A.
The tapered surface 22A is formed so that the intersection point E of normal lines h drawn from two points at the same height substantially coincides with the center of curvature A of the ball rolling groove 18, and the tapered surface 22A and The outer ring 10 is supported by a shaft-side center hole 23 formed in the end face of the shaft 21, and the outer side of the outer ring 10 is processed.
上記構成によれば、カツプ２０の底部に形成さ
れた円錐形状のテーパー面２２Ａに立てた法線ｈ
の交点Ｅと前記ボール転動溝１８の曲率中心Ａと
がほぼ一致しているので、シヤフト側センター穴
２３の位置が正しい位置にこなくても、センター
軸２４は、ほぼ曲率中心Ａを通る。
According to the above configuration, the normal h to the conical tapered surface 22A formed at the bottom of the cup 20
Since the intersection E of the ball rolling groove 18 almost coincides with the center of curvature A of the ball rolling groove 18, even if the shaft side center hole 23 is not in the correct position, the center axis 24 passes almost through the center of curvature A. .
そのため、外輪外部側を機械加工するに際し、
カツプ側テーパー面２２Ａとシヤフト側センター
穴２３とを利用して継手外輪１０を支持すると、
ボール転動溝１８の相対位置がずれることなく機
械加工することができる。 Therefore, when machining the outer side of the outer ring,
When the joint outer ring 10 is supported using the cup side tapered surface 22A and the shaft side center hole 23,
Machining can be performed without shifting the relative positions of the ball rolling grooves 18.
以下図面に従つて実施例を説明する。 Examples will be described below with reference to the drawings.
第４図は、本発明の実施例に係るバーフイール
ド型等速自在継手外輪の縦断面図であり、ｂはカ
ツプ側センター穴２２のテーパー面２２Ａの基準
円、２６はセンター逃げ、ｄは基準径（基準円の
直径）、２８はセンター、θはテーパー角をそれ
ぞれ表わす。また、Ｅは基準円ｂに立てた法線ｈ
の交点であつて、この点Ｅは前記曲率中心Ａとほ
ぼ一致するように、テーパー角θ及び基準径ｄが
それぞれ選定されている。 FIG. 4 is a longitudinal sectional view of the outer ring of the bar field type constant velocity universal joint according to the embodiment of the present invention, b is the reference circle of the tapered surface 22A of the cup side center hole 22, 26 is the center relief, and d is the reference The diameter (diameter of the reference circle), 28 represents the center, and θ represents the taper angle. Also, E is the normal h set on the reference circle b
The taper angle θ and the reference diameter d are selected so that this point E, which is the intersection point of , substantially coincides with the center of curvature A.
このように構成された本発明の外輪において
は、カツプ側センターの基準円ｂに立てた法線ｈ
の交点Ｅがボール転動溝１８の曲率中心Ａとほぼ
一致しているので、シヤフト側センター穴２３の
位置が正しい位置に来なくとも、センター軸２４
は、ほぼ曲率中心Ａを通り、センター軸２４基準
で測定した溝までの半径距離Ｒはほとんど変らな
い。そのため塑性加工で加工された溝の相対位置
がずれることなく機械加工することできる。 In the outer ring of the present invention constructed in this way, the normal line h set to the reference circle b at the center of the cup side is
Since the intersection point E of the ball rolling groove 18 almost coincides with the center of curvature A of the ball rolling groove 18, even if the shaft side center hole 23 is not in the correct position, the center shaft 24
passes approximately the center of curvature A, and the radial distance R to the groove measured with reference to the center axis 24 hardly changes. Therefore, machining can be performed without shifting the relative positions of the grooves machined by plastic working.
また一般的には、仕上げ研削前の浸炭焼入れに
より、シヤフト２１に曲がりが生じ、従来のセン
ター穴形状では研削基準として利用できなかつた
のが、本発明のようなセンター形状とすることに
より、浸炭焼入れ後の研削基準として、両センタ
ー穴２２，２３を利用できるようになり、作業性
が著しく向上するという効果もある。 Generally, the shaft 21 is bent due to carburizing and quenching before final grinding, and the conventional center hole shape could not be used as a reference for grinding. Both center holes 22 and 23 can now be used as grinding standards after hardening, which also has the effect of significantly improving workability.
上述のとおり本発明によれば、外輪外部側を機
械加工するに際し、カツプ側テーパー面とシヤフ
ト側センター穴とを利用して継手外輪を支持する
ことにより、ボール転動溝の相対位置のずれが生
じないので、シヤフトに曲がりが生じ、従来のセ
ンター穴形状では研削基準として利用できなかつ
たものを、高精度に加工することができる。
As described above, according to the present invention, when machining the outer side of the outer ring, by supporting the joint outer ring using the cup side taper surface and the shaft side center hole, deviations in the relative positions of the ball rolling grooves can be prevented. Since this does not occur, it is possible to process objects with high precision that would not be able to be used as a grinding reference with the conventional center hole shape due to bending of the shaft.
第１図はバーフイールド型等速自在継手の構造
を示す図、第２図はバーフイールド型等速自在継
手外輪の構造を示す断面図、第３図は従来の外輪
の形状を示す断面図、第４図は本発明の実施例に
係る外輪の形状を示す断面図である。
１０……外輪、１２……内輪、１４……ボー
ル、１８……ボール転動溝、２０……カツプ、２
２……カツプ側センター穴、２３……シヤフト側
センター穴、２４……センター軸。
Fig. 1 is a diagram showing the structure of a bar field type constant velocity universal joint, Fig. 2 is a sectional view showing the structure of the bar field type constant velocity universal joint outer ring, and Fig. 3 is a sectional view showing the shape of a conventional outer ring. FIG. 4 is a sectional view showing the shape of the outer ring according to the embodiment of the present invention. 10...Outer ring, 12...Inner ring, 14...Ball, 18...Ball rolling groove, 20...Cup, 2
2... Center hole on the cup side, 23... Center hole on the shaft side, 24... Center shaft.
Claims (1)
の凹穴状のカツプ２０が内部側に形成され、外部
側にシヤフト２１を有するほぼ製品形状とされた
バーフイールド型等速自在継手外輪１０の前記外
部側を機械加工する方法であつて、前記カツプ２
０の底部に形成された加工基準用のテーパー状セ
ンター穴２２の円形開口部には、円錐形状のテー
パー面２２Ａが、該テーパー面２２Ａの同じ高さ
の２個所から立てた法線ｈの交点Ｅと前記ボール
転動溝１８の曲率中心Ａとがほぼ一致するように
形成されており、前記テーパー面２２Ａと前記シ
ヤフト２１の端面に形成するシヤフト側センター
穴２３とにより前記外輪１０を支持して該外輪１
０の外部側を加工することを特徴とするバーフイ
ールド型等速自在継手外輪の機械加工方法。 ２ 前記センター穴２２の底部にはセンター逃が
し用の凹部２６が設けられた特許請求の範囲第１
項記載のバーフイールド型等速自在継手外輪の機
械加工方法。[Scope of Claims] 1. A bar field type, etc., which is approximately in the shape of a product and has a concave cup 20 for engaging an inner ring with a spherical ball rolling groove 18 formed on the inside and a shaft 21 on the outside. A method of machining the outer side of a quick adjustable joint outer ring 10, the method comprising:
In the circular opening of the tapered center hole 22 for processing reference formed at the bottom of 0, a conical tapered surface 22A is located at the intersection of normal lines h drawn from two points at the same height of the tapered surface 22A. E and the center of curvature A of the ball rolling groove 18 are formed to substantially coincide with each other, and the outer ring 10 is supported by the tapered surface 22A and a shaft-side center hole 23 formed in the end surface of the shaft 21. The outer ring 1
A method of machining an outer ring of a bar field type constant velocity universal joint, characterized in that the outer ring of a bar field type constant velocity universal joint is machined. 2. The center hole 22 is provided with a recess 26 at the bottom thereof for center release.
A method of machining the outer ring of a bar field type constant velocity universal joint as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14910981A JPS5851043A (en) | 1981-09-21 | 1981-09-21 | Mechanical processing method for outer race of a barfield type equal-speed universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14910981A JPS5851043A (en) | 1981-09-21 | 1981-09-21 | Mechanical processing method for outer race of a barfield type equal-speed universal joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5851043A JPS5851043A (en) | 1983-03-25 |
| JPH0525601B2 true JPH0525601B2 (en) | 1993-04-13 |
Family
ID=15467892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14910981A Granted JPS5851043A (en) | 1981-09-21 | 1981-09-21 | Mechanical processing method for outer race of a barfield type equal-speed universal joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5851043A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016199655A1 (en) * | 2015-06-11 | 2016-12-15 | Ntn株式会社 | Outer joint member of constant-velocity universal joint |
-
1981
- 1981-09-21 JP JP14910981A patent/JPS5851043A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016199655A1 (en) * | 2015-06-11 | 2016-12-15 | Ntn株式会社 | Outer joint member of constant-velocity universal joint |
| CN107614910A (en) * | 2015-06-11 | 2018-01-19 | Ntn株式会社 | The outside joint member of constant-speed universal coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5851043A (en) | 1983-03-25 |
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