JP2010180968A - Method of manufacturing retainer for thrust roller bearing - Google Patents

Method of manufacturing retainer for thrust roller bearing Download PDF

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JP2010180968A
JP2010180968A JP2009025678A JP2009025678A JP2010180968A JP 2010180968 A JP2010180968 A JP 2010180968A JP 2009025678 A JP2009025678 A JP 2009025678A JP 2009025678 A JP2009025678 A JP 2009025678A JP 2010180968 A JP2010180968 A JP 2010180968A
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roller
pocket
cage
retainer
die
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Kazuyuki Kotani
一之 小谷
Kazuhiro Akisawa
一博 秋澤
Yoshitomo Kabayama
佳友 樺山
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JTEKT Corp
Utsunomiya Kiki Co Ltd
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JTEKT Corp
Utsunomiya Kiki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method which is excellent workability while ensuring strength with respect to a retainer for thrust roller bearing with small roller diameter. <P>SOLUTION: The retainer 10 is formed by punching a pocket 20 for receiving a roller 30 in a thick plate. A die having a continuous projection part on the circumference is pressed onto the retainer 10 from the upper and lower sides, whereby a column part 12 of the retainer 10 pushed to the projection part of the die is pushed to the opening of the pocket 20 to form a roller stopper 24 on a wall surface 22 of the pocket 20. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

この発明はスラストころ軸受用保持器の製造方法に関する。さらに詳しくは、ころ径が細い肉薄のスラストころ軸受用保持器のころ留めの製造方法に関する。   The present invention relates to a method of manufacturing a thrust roller bearing cage. More specifically, the present invention relates to a method for manufacturing a roller stopper for a thin thrust roller bearing retainer having a small roller diameter.

スラストころ軸受用保持器は、一枚の板材を径方向の断面がＭ字形となるようにプレス成形した１枚タイプ、または径方向の断面がコの字形となるようにプレス成形した２枚の板材を上下に組み合わせた２枚タイプが主である。そして、プレス成形した板材にころを保持するポケットを打ち抜くときに、成形された保持器の厚み方向の中心部から離れた位置となる凸部および凹部におけるポケットの幅をころの直径よりも狭くして打ち抜き、このポケットの径の狭い部分を保持器のころ留めとしている。   The thrust roller bearing retainer is a single sheet type press-molded so that the cross-section in the radial direction is M-shaped, or two press-molded so that the cross-section in the radial direction is U-shaped. The main type is a two-sheet type that combines plate materials up and down. Then, when punching a pocket that holds the roller in a press-molded plate, the width of the pocket in the convex part and the concave part located away from the center part in the thickness direction of the molded cage is made smaller than the diameter of the roller. The narrow part of this pocket is used as a retainer roller.

図６（Ａ）、（Ｂ）、（Ｃ）に従来技術によりポケットの打ち抜き幅を径方向で変化させてころ留めを形成したスラストころ軸受用保持器を示す。図６（Ａ）はスラストころ軸受用のＭ形にプレス成形された保持器１００の部分平面図である。そして、図６（Ｂ）に図６（Ａ）のＢ−Ｂ位置における径方向断面図を、図６（Ｃ）に図６（Ａ）のＣ−Ｃ位置における周方向断面図を示す。図６（Ａ）、（Ｂ）に示すとおり、保持器１００のポケット１１０は、保持器１００のＭ形に成形された凸状部１１２および凹状部１１４で、ポケット１１０の幅がころ１２０の幅よりも狭く設定されている。そして、図６（Ｃ）に示すようにポケット１１０における凸状部１１２の幅および凹状部１１４の幅は、凸状部１１２および凹状部１１４の高さ位置におけるころ１２０の径方向の幅よりも大きく設定されている。これにより、ポケット１１０において、凸状部１１２および凹状部１１４がころ留めの役割を果たすことができる。
先行技術文献として、特開２００６−１４４８２１号公報（特許文献１）には、ポケットの打ち抜き幅を径方向で変化させてころ留めを形成するスラストころ軸受用保持器が記載されている（特許文献１の図６、図７参照）。 FIGS. 6A, 6B, and 6C show a thrust roller bearing cage in which the punching width of the pocket is changed in the radial direction to form a roller clasp according to the prior art. FIG. 6A is a partial plan view of a cage 100 press-molded into an M shape for a thrust roller bearing. 6B shows a radial cross-sectional view at the BB position in FIG. 6A, and FIG. 6C shows a circumferential cross-sectional view at the CC position in FIG. 6A. As shown in FIGS. 6A and 6B, the pocket 110 of the cage 100 is a convex portion 112 and a concave portion 114 formed in the M shape of the cage 100, and the width of the pocket 110 is the width of the roller 120. It is set narrower than. 6C, the width of the convex portion 112 and the width of the concave portion 114 in the pocket 110 are larger than the radial width of the roller 120 at the height position of the convex portion 112 and the concave portion 114. It is set large. Thereby, in the pocket 110, the convex-shaped part 112 and the concave-shaped part 114 can play the role of rolling.
As a prior art document, Japanese Patent Laying-Open No. 2006-144821 (Patent Document 1) describes a thrust roller bearing retainer that forms a roller clasp by changing the punching width of a pocket in the radial direction (Patent Document). 1 and FIG. 7).

しかし、上述の方法は、ころ径が細い薄肉のスラストころ軸受用保持器に適用する場合には問題がある。図７（Ａ）に、薄肉のスラストころ軸受用保持器１００のポケット１１０が形成された部分の周方向断面図を示す。ころ径が１φ以下程度の薄肉のスラストころ軸受用保持器１００の場合は、図７（Ａ）に示すように、保持器１００の厚み方向でころ１２０とポケット１１０の間のスペースが少なくなり、ころ詰まりを生じやすい。
そこで、ころ詰まりを解消するために、図７（Ｂ）に示すように保持器の板厚を薄くしたり、図７（Ｃ）に示すように、ポケットを打ち抜いた後にころの接触面に面取り加工したりしなければならず、強度あるいは加工コストの面で問題がある。 However, the above-described method has a problem when applied to a thin roller roller cage having a thin roller diameter. FIG. 7A shows a circumferential cross-sectional view of a portion of the thin thrust roller bearing retainer 100 where the pocket 110 is formed. In the case of a thin thrust roller bearing cage 100 having a roller diameter of about 1φ or less, as shown in FIG. 7A, the space between the roller 120 and the pocket 110 in the thickness direction of the cage 100 is reduced. It is easy to cause roller clogging.
Therefore, in order to eliminate roller clogging, the cage thickness is reduced as shown in FIG. 7B, or the roller contact surface is chamfered after punching out the pocket as shown in FIG. 7C. There is a problem in terms of strength or processing cost.

これに対して、１枚の厚板を平板のまま使用してころの径よりも幅の広いポケットを打ち抜いて保持器を形成すれば、目詰まりや強度低下の問題は生じない。特開２００６−１５３０２８号公報（特許文献２）には、厚板にポケットを打ち抜いて形成したスラストころ軸受用保持器が記載されている（特許文献の図３参照）。   On the other hand, if a retainer is formed by punching out a pocket wider than the diameter of the roller using a single thick plate as a flat plate, problems of clogging and strength reduction do not occur. Japanese Patent Laying-Open No. 2006-153028 (Patent Document 2) describes a thrust roller bearing retainer formed by punching a pocket in a thick plate (see FIG. 3 of Patent Document).

特開２００６−１４４８２１号公報JP 2006-144821 A 特開２００６−１５３０２８号公報JP 2006-153028 A

しかしながら、１枚の厚板からポケットを打ち抜いてスラストころ軸受用保持器を形成する場合は、別加工によりころを保持するためのころ留めを成形する必要がある。図８（Ａ）、（Ｂ）を用いて、従来技術により保持器にころ留めを成形する手順を説明する。図８（Ａ）は、ポケット１６０を打ち抜いた状態の保持器１５０のポケット１６０に中子金型１７０を挿入して、押圧金型１８０に形成された突起部１８２を保持器１５０の柱部１５４の位置に合わせた状態の周方向断面図である。この状態から、図８（Ｂ）に示すように、押圧金型１８０の突起部１８２を保持器１５０の柱部１５４に押し当て、保持器１５０の柱部１５４を塑性変形させて、ころ留め１５２を成形する。
図９（Ａ）にころ留め１５２が形成された保持器１５０の周方向断面図を、図９（Ｂ）に図９（Ａ）のＢ方向からの矢視図を示す。 However, when a thrust roller bearing retainer is formed by punching a pocket from one thick plate, it is necessary to form a roller stopper for holding the roller by separate processing. 8A and 8B, a procedure for forming a roller clasp on a cage according to a conventional technique will be described. 8A, the core mold 170 is inserted into the pocket 160 of the retainer 150 in a state in which the pocket 160 has been punched, and the protrusion 182 formed on the pressing mold 180 is used as the column portion 154 of the retainer 150. It is a circumferential direction sectional view of the state adjusted to this position. From this state, as shown in FIG. 8B, the projection 182 of the pressing mold 180 is pressed against the column portion 154 of the retainer 150, and the column portion 154 of the retainer 150 is plastically deformed. Is molded.
FIG. 9A shows a circumferential cross-sectional view of the cage 150 in which the roller clasp 152 is formed, and FIG. 9B shows an arrow view from the B direction of FIG. 9A.

この、別加工によりころ留めを成形する方法では、ポケット１６０の中に中子金型１７０を挿入して、表面のころ留め１５２ａと裏面のころ留め１５２ｂを別工程で成形することとなる。よって、片面に形成済みのころ留めの破損を避けるために、図９（Ｂ）に示すように、保持器１５０の表面と裏面でころ留め１５２ａ、１５２ｂを形成する径方向の位置を互いにずらす必要がある。そのため、ポケットが非常に短い場合には、図９（Ｂ）に想像線で示した押圧金型１８０の径方向の幅を非常に狭くする必要があり、金型の剛性面の問題が生ずる。また、ころ留め１５２ａ、１５２ｂを成形する手順が煩雑で、生産性が低くコスト面で不利である。   In this method of forming the roller clasp by separate processing, the core die 170 is inserted into the pocket 160 and the front roller clasp 152a and the back roller clasp 152b are molded in separate steps. Therefore, in order to avoid damage to the roller clamps already formed on one side, it is necessary to shift the radial positions for forming the roller clamps 152a and 152b on the front and back surfaces of the cage 150 as shown in FIG. 9B. There is. Therefore, when the pocket is very short, it is necessary to make the width in the radial direction of the pressing mold 180 shown by an imaginary line in FIG. 9B very narrow, which causes a problem of the rigidity of the mold. Further, the procedure for forming the roller stoppers 152a and 152b is complicated, and the productivity is low, which is disadvantageous in terms of cost.

そこで、本発明が解決しようとする課題は、ころ径が細い肉薄のスラストころ軸受用保持器について、強度を確保し、加工性に優れた製造方法を提供することにある。   Accordingly, the problem to be solved by the present invention is to provide a manufacturing method that secures strength and is excellent in workability for a thin thrust roller bearing retainer having a small roller diameter.

上記課題を解決するため、本発明にかかるスラストころ軸受用保持器の製造方法は次の手段をとる。
本発明は、スラストころ軸受用保持器の製造方法であって、
厚板にころの入るポケットを打ち抜いて、該厚板の上下から円周上に連続した凸部を有する金型を押しつけることにより、該金型の凸部に押された厚板の柱部を該ポケットの開口部に押し出して該ポケットの壁面にころ留めを形成することを特徴とする。 In order to solve the above problems, the method for manufacturing a thrust roller bearing retainer according to the present invention takes the following means.
The present invention is a method of manufacturing a thrust roller bearing retainer,
By punching out a pocket into which a roller enters a plank and pressing a mold having a convex part continuous on the circumference from above and below the plank, the column part of the plank pressed by the convex part of the mold It is characterized in that a roller clasp is formed on the wall surface of the pocket by being extruded into the opening of the pocket.

この発明によれば、ポケットを打ち抜いた厚板の上下から円周上に連続した凸部を有する金型を押しつけることによりポケットの壁面にころ留めを形成できる。この方法によれば、厚板にポケットを打ち抜いて保持器とするため、保持器の強度を確保できる。そして、一度の押圧工程により表裏の両面にころ留めを形成できるため作業効率がよい。また、金型の凸部は周方向に連続しているので、保持器に対する金型の位置合わせは中心のみを合わせれば良く、周方向の位置合わせは考慮する必要がないので、作業性がよい。
よって、ころ径が細い肉薄のスラストころ軸受用保持器について、強度を確保し、加工性に優れた製造方法を提供することができる。 According to this invention, it is possible to form a roller clasp on the wall surface of the pocket by pressing a die having convex portions continuous on the circumference from above and below the thick plate from which the pocket is punched. According to this method, since the pocket is punched into the thick plate to form the cage, the strength of the cage can be ensured. And since a roller stop can be formed in both front and back surfaces by one press process, work efficiency is good. Moreover, since the convex part of the mold is continuous in the circumferential direction, it is only necessary to align the mold with respect to the cage, and it is not necessary to consider the circumferential alignment, so workability is good. .
Therefore, it is possible to provide a manufacturing method that secures strength and is excellent in workability for a thin thrust roller bearing retainer having a small roller diameter.

上述の発明によれば、ころ径が細い肉薄のスラストころ軸受用保持器について、強度を確保し、加工性に優れた製造方法を提供することができる。   According to the above-described invention, it is possible to provide a manufacturing method that secures strength and is excellent in workability for a thin thrust roller bearing retainer having a small roller diameter.

実施例１におけるスラストころ軸受用保持器の製造方法により製造されたスラストころ軸受用保持器の平面図および周方向断面図である。It is the top view and circumferential direction sectional drawing of the cage for thrust roller bearings manufactured with the manufacturing method of the cage for thrust roller bearings in Example 1. FIG. 実施例１におけるスラストころ軸受用保持器の製造方法を示す図である。It is a figure which shows the manufacturing method of the cage for thrust roller bearings in Example 1. FIG. 実施例１でカシメ金型を保持器に配置した状態の平面図である。It is a top view in the state where the caulking die was arranged in the cage in Example 1. 実施例２におけるスラストころ軸受用保持器の製造方法を示す図である。6 is a diagram illustrating a method for manufacturing a thrust roller bearing retainer in Embodiment 2. FIG. 実施例３におけるスラストころ軸受用保持器の製造方法を示す図である。6 is a view showing a method for manufacturing a thrust roller bearing retainer in Embodiment 3. FIG. 従来技術によりポケットの打ち抜き幅を径方向で変化させてころ留めを形成した保持器を示す図である。It is a figure which shows the holder | retainer which changed the punching width | variety of the pocket by radial direction, and formed the roller clasp by the prior art. 従来技術を薄肉のスラストころ軸受用保持器に適用する場合に生ずる問題点を説明する図である。It is a figure explaining the problem which arises when applying a prior art to a thin-walled thrust roller bearing cage. 従来技術により一枚の厚板からポケットを打ち抜き、ころ留めを追加成形する方法を説明する図である。It is a figure explaining the method of punching a pocket from one thick board by a prior art, and additionally forming a roller clasp. 従来技術により一枚の厚板からポケットを打ち抜き、ころ留めを追加成形した保持器を示す図である。It is a figure which shows the holder | retainer which punched the pocket from one thick board by the prior art, and additionally formed the roller stopper.

以下、本発明を実施するための形態について実施例にしたがって説明する。   Hereinafter, modes for carrying out the present invention will be described according to examples.

図１（Ａ）に、本発明の実施例１におけるスラストころ軸受用保持器の製造方法により製造されたスラストころ軸受用の保持器１０の平面図を、図１（Ｂ）に図１（Ａ）のＡ−Ａ位置における保持器１０の断面図を示す。   1A is a plan view of a thrust roller bearing retainer 10 manufactured by the method for manufacturing a thrust roller bearing retainer in Embodiment 1 of the present invention. FIG. 1B is a plan view of FIG. ) Shows a cross-sectional view of the cage 10 at the A-A position.

まず、図１（Ａ）、（Ｂ）により保持器１０の構成について説明する。保持器１０は、厚板にころ３０の入るポケット２０を周方向に等間隔に打ち抜いて形成した円板状の部材であって、図１（Ａ）に示すとおり、保持器１０のポケット２０の間に形成された柱部１２の表面には同心円となる溝１４が２本形成されている。そして、柱部１２に溝１４が形成された径方向位置と同心円上となるポケット２０の壁面２２には、ころ３０をポケット２０に保持することができるころ留め２４が形成されている。   First, the configuration of the cage 10 will be described with reference to FIGS. The cage 10 is a disk-shaped member formed by punching the pockets 20 into which the rollers 30 enter a thick plate at equal intervals in the circumferential direction. As shown in FIG. Two concentric grooves 14 are formed on the surface of the column portion 12 formed therebetween. Rollers 24 that can hold the rollers 30 in the pockets 20 are formed on the wall surfaces 22 of the pockets 20 that are concentric with the radial positions where the grooves 14 are formed in the pillars 12.

次に、図２（Ａ）、（Ｂ）、（Ｃ）により保持器１０の製造方法を説明する。まず、ころ３０（図示せず）の直径より板厚が薄い厚板４０を中央に穴の空いた円板状に成形する。そして、抜き金型４２により厚板４０にころ３０の入るポケット２０を打ち抜ぬいて保持器１０を形成する。図２（Ａ）に、厚板４０にポケット２０を打ち抜いて保持器１０を形成する工程における、厚板４０と抜き金型４２の径方向断面を示す。
ポケット２０を打ち抜いた後、円周上に連続した凸部４６が径方向の２箇所に形成されたカシメ金型４４を、保持器１０の両面に中心位置を合わせて配置する。図２（Ｂ）に、保持器１０にカシメ金型４４を配置した状態を示す。そして、カシメ金型４４を保持器１０に対して上下から押しつけて保持器１０をかしめることにより、ころ留め２４を形成する。図２（Ｃ）はカシメ金型４４により保持器１０がかしめられた状態を示す。かしめ加工により、保持器１０の柱部１２には、図１（Ａ）、（Ｂ）に示した溝１４が形成される。そして、保持器１０の柱部１２がポケット２０の両面の開口部に押し出されて、ポケット２０の壁面２２に図１（Ａ）、（Ｂ）に示したころ留め２４が形成される。 Next, a method for manufacturing the cage 10 will be described with reference to FIGS. 2 (A), 2 (B), and 2 (C). First, a thick plate 40 having a thickness smaller than the diameter of the roller 30 (not shown) is formed into a disk shape having a hole in the center. Then, the cage 10 is formed by punching out the pocket 20 in which the roller 30 enters the thick plate 40 by the punching die 42. FIG. 2A shows a radial cross section of the thick plate 40 and the punching die 42 in the step of punching the pocket 20 in the thick plate 40 to form the cage 10.
After punching out the pocket 20, the caulking molds 44 in which convex portions 46 that are continuous on the circumference are formed at two locations in the radial direction are arranged on both surfaces of the cage 10 so that the center positions are aligned. FIG. 2B shows a state in which the crimping mold 44 is arranged in the cage 10. Then, the caulking die 44 is pressed against the cage 10 from above and below to caulk the cage 10, thereby forming the roller clamp 24. FIG. 2C shows a state in which the cage 10 is caulked by the caulking die 44. By the caulking process, the grooves 14 shown in FIGS. 1A and 1B are formed in the column portion 12 of the cage 10. And the pillar part 12 of the holder | retainer 10 is extruded to the opening part of both surfaces of the pocket 20, and the roller clamp 24 shown to FIG. 1 (A), (B) is formed in the wall surface 22 of the pocket 20. As shown in FIG.

図３にカシメ金型４４を保持器１０の両面に配置した状態の平面図を示す。実施例１では、保持器１０を押圧する側の面に円周上に連続した凸部４６が径方向に２箇所に形成されたカシメ金型４４を使用しているが、凸部４６は２箇所に限定されず、３箇所であっても良い。   FIG. 3 is a plan view showing a state in which the crimping die 44 is arranged on both surfaces of the cage 10. In the first embodiment, the caulking die 44 is used in which the convex portions 46 that are continuous on the circumference are formed at two locations in the radial direction on the surface that presses the cage 10. It is not limited to a location, and may be 3 locations.

実施例１の保持器１０の製造方法によれば、厚板４０にポケット２０を打ち抜いて保持器１０とするため、保持器１０の強度を確保することができる。そして、一度の押圧工程で表裏の両面にころ留め２４を形成することができるため作業効率がよい。また、カシメ金型４４の凸部４６は周方向に連続しているので、保持器１０に対するカシメ金型４４の位置合わせは中心のみを合わせれば良く、周方向の位置合わせは考慮する必要がないので、作業性がよい。
よって、実施例１によれば、ころ径が細い肉薄のスラストころ軸受用保持器について、強度を確保し、加工性に優れた製造方法を提供することができる。
なお、実施例１では、ころ留め２４をプレス加工により成形しているが、ローレット加工によりころ留め２４を成形しても良い。 According to the method for manufacturing the cage 10 of the first embodiment, the pocket 20 is punched into the thick plate 40 to form the cage 10, so that the strength of the cage 10 can be ensured. And since the roller stop 24 can be formed on both front and back surfaces in a single pressing step, the work efficiency is good. Moreover, since the convex part 46 of the crimping metal mold | die 44 is continuing in the circumferential direction, the alignment of the crimping metal mold | die 44 with respect to the holder | retainer 10 should just align the center, and it is not necessary to consider the alignment of the circumferential direction. So workability is good.
Therefore, according to Example 1, about the thin roller bearing retainer with a thin roller diameter, strength can be ensured and the manufacturing method excellent in workability can be provided.
In Example 1, the roller clasp 24 is formed by press working, but the roller clasp 24 may be formed by knurling.

次に、本発明の実施例２について説明する。図４（Ａ）、（Ｂ）、（Ｃ）に本発明の実施例２におけるスラストころ軸受用保持器の製造方法を示す。実施例２の実施例１との差異は、抜き金型４２により厚板４０にころ３０（図示せず）の入るポケット２０を打ち抜ぬく前に、カシメ金型４４の凸部４６により押圧される部位の両脇にプレス金型４８により溝４１ａを設ける工程が追加されていることである。図４（Ａ）に、プレス金型４８により厚板４０に溝４１ａを形成した状態の径方向断面図を示す。そして図４（Ｂ）に示すように、抜き金型４２でポケット２０を打ち抜く。そして、図４（Ｃ）に示すようにカシメ金型４４によりかしめてころ留め２４を成形する。
実施例２によれば、保持器１０の柱部１２（図１（Ａ）参照）のカシメ金型４４の凸部４６に押圧される部分の両脇に溝４１ａが形成されているので、かしめによる押圧時の抵抗が少なく、ころ留め２４の成形が容易である。なお、実施例１で発揮される保持器の強度および加工性に関する効果は実施例２においても同様に発揮される。 Next, a second embodiment of the present invention will be described. 4 (A), 4 (B), and 4 (C) show a method for manufacturing a thrust roller bearing retainer in Embodiment 2 of the present invention. The difference between the second embodiment and the first embodiment is that the punching die 42 is pressed by the convex portion 46 of the caulking die 44 before punching out the pocket 20 into which the roller 30 (not shown) enters the thick plate 40 by the punching die 42. The process of providing the groove | channel 41a by the press metal mold | die 48 on both sides of the site | part to be added is added. FIG. 4A shows a radial cross-sectional view in a state where the groove 41 a is formed in the thick plate 40 by the press die 48. Then, as shown in FIG. 4B, the pocket 20 is punched with a punching die 42. Then, as shown in FIG. 4C, the roller clamp 24 is formed by caulking with a caulking die 44.
According to the second embodiment, since the grooves 41a are formed on both sides of the portion pressed by the convex portion 46 of the caulking die 44 of the column portion 12 (see FIG. 1A) of the cage 10, the caulking is performed. The resistance at the time of pressing is small, and the roller clamp 24 can be easily formed. In addition, the effect regarding the strength and workability of the cage exhibited in the first embodiment is also exhibited in the second embodiment.

次に、本発明の実施例３について説明する。図５（Ａ）、（Ｂ）、（Ｃ）に本発明の実施例３におけるスラストころ軸受用保持器の製造方法を示す。実施例３の実施例１との差異は、抜き金型４２により厚板４０にころ３０（図示せず）の入るポケット２０を打ち抜ぬく前に、カシメ金型４４の凸部４６により押圧される部位にプレス金型４８Ａにより凸状部４１ｂを設ける工程が追加されていることである。図５（Ａ）に、プレス金型４８Ａにより厚板４０に凸状部４１ｂを形成した状態の径方向断面図を示す。そして図５（Ｂ）に示すように、抜き金型４２でポケット２０を打ち抜く。そして、図５（Ｃ）に示すようにカシメ金型４４によりかしめてころ留め２４を成形する。
実施例３によれば、保持器１０の柱部１２（図１（Ａ）参照）のカシメ金型４４の凸部４６に押圧される部分が凸状部４１ｂとされているので、かしめによる押圧時の抵抗が少なく、ころ留め２４を保持器１０の表面近くに成形することができる。なお、実施例１で発揮される保持器の強度および加工性に関する効果は実施例３においても同様に発揮される。 Next, Embodiment 3 of the present invention will be described. 5 (A), (B), and (C) show a method for manufacturing a thrust roller bearing retainer in Example 3 of the present invention. The difference between the third embodiment and the first embodiment is that the punching die 46 is pressed by the convex portion 46 of the caulking die 44 before punching out the pocket 20 into which the roller 30 (not shown) enters the thick plate 40 by the punching die 42. The step of providing the convex portion 41b with the press die 48A is added to the portion to be removed. FIG. 5A shows a radial cross-sectional view of a state in which the convex portion 41b is formed on the thick plate 40 by the press die 48A. Then, as shown in FIG. 5 (B), the pocket 20 is punched with the punching die 42. Then, as shown in FIG. 5C, the roller clamp 24 is formed by caulking with a caulking die 44.
According to Example 3, since the part pressed by the convex part 46 of the caulking metal mold | die 44 of the pillar part 12 (refer FIG. 1 (A)) of the holder | retainer 10 is made into the convex-shaped part 41b, the press by caulking There is little resistance to time, and the roller clamp 24 can be formed near the surface of the cage 10. In addition, the effect regarding the strength and workability of the cage exhibited in the first embodiment is also exhibited in the third embodiment.

その他、本発明に係るスラストころ軸受用保持器の製造方法はその発明の思想の範囲で、各種の形態で実施できるものである。   In addition, the manufacturing method of the thrust roller bearing retainer according to the present invention can be implemented in various forms within the scope of the idea of the invention.

１０ 保持器
１２ 柱部
１４ 溝
２０ ポケット
２２ 壁面
２４ ころ留め
３０ ころ
４０ 厚板
４１ａ 溝
４１ｂ 凸状部
４２ 抜き金型
４４ カシメ金型
４６ 凸部
４８、４８Ａ プレス金型
DESCRIPTION OF SYMBOLS 10 Cage 12 Column 14 Groove 20 Pocket 22 Wall surface 24 Roller clamp 30 Roller 40 Thick plate 41a Groove 41b Convex part 42 Die die 44 Caulking die 46 Convex part 48, 48A Press die

Claims (1)

スラストころ軸受用保持器の製造方法であって、
厚板にころの入るポケットを打ち抜いて、該厚板の上下から円周上に連続した凸部を有する金型を押しつけることにより、該金型の凸部に押された厚板の柱部を該ポケットの開口部に押し出して該ポケットの壁面にころ留めを形成することを特徴とするスラストころ軸受用保持器の製造方法。
A method of manufacturing a cage for a thrust roller bearing,
By punching out a pocket into which a roller enters a plank and pressing a mold having a convex part continuous on the circumference from above and below the plank, the column part of the plank pressed by the convex part of the mold A method for manufacturing a thrust roller bearing retainer, wherein the roller stopper is formed on a wall surface of the pocket by being extruded into an opening of the pocket.
JP2009025678A 2009-02-06 2009-02-06 Method of manufacturing retainer for thrust roller bearing Pending JP2010180968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009025678A JP2010180968A (en) 2009-02-06 2009-02-06 Method of manufacturing retainer for thrust roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009025678A JP2010180968A (en) 2009-02-06 2009-02-06 Method of manufacturing retainer for thrust roller bearing

Publications (1)

Publication Number Publication Date
JP2010180968A true JP2010180968A (en) 2010-08-19

Family

ID=42762676

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Application Number Title Priority Date Filing Date
JP2009025678A Pending JP2010180968A (en) 2009-02-06 2009-02-06 Method of manufacturing retainer for thrust roller bearing

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Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022110318A1 (en) 2022-04-28 2023-11-02 Schaeffler Technologies AG & Co. KG Axial bearing arrangement with bearing rollers surrounded by a one-piece solid cage
WO2023208268A1 (en) * 2022-04-28 2023-11-02 Schaeffler Technologies AG & Co. KG Axial bearing arrangement with bearing rollers enclosed by a one-piece bearing cage
DE102022110319A1 (en) 2022-04-28 2023-11-02 Schaeffler Technologies AG & Co. KG Axial bearing arrangement with bearing rollers surrounded by a one-piece solid cage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022110318A1 (en) 2022-04-28 2023-11-02 Schaeffler Technologies AG & Co. KG Axial bearing arrangement with bearing rollers surrounded by a one-piece solid cage
WO2023208268A1 (en) * 2022-04-28 2023-11-02 Schaeffler Technologies AG & Co. KG Axial bearing arrangement with bearing rollers enclosed by a one-piece bearing cage
DE102022110319A1 (en) 2022-04-28 2023-11-02 Schaeffler Technologies AG & Co. KG Axial bearing arrangement with bearing rollers surrounded by a one-piece solid cage
DE102022110321A1 (en) 2022-04-28 2023-11-02 Schaeffler Technologies AG & Co. KG Axial bearing arrangement with bearing rollers enclosed in a one-piece bearing cage

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