WO2015020198A1 - Linear-motion bearing with flange attached - Google Patents
Linear-motion bearing with flange attached Download PDFInfo
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- WO2015020198A1 WO2015020198A1 PCT/JP2014/071021 JP2014071021W WO2015020198A1 WO 2015020198 A1 WO2015020198 A1 WO 2015020198A1 JP 2014071021 W JP2014071021 W JP 2014071021W WO 2015020198 A1 WO2015020198 A1 WO 2015020198A1
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- flange
- linear motion
- motion bearing
- outer cylinder
- linear
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0676—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body or carriage almost fully embracing the guide rail or track, e.g. a circular sleeve with a longitudinal slot for the support posts of the rail
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
[Problem] To provide an easily manufactured linear-motion bearing with a flange attached. [Solution] A linear-motion bearing with a flange attached in which: the linear-motion bearing includes an outer tube that comprises a metal material, a tubular rolling-element holder that is fitted inside the outer tube, and a plurality of rolling elements that are held by the tubular rolling-element holder; and the flange is annularly provided to the circumference of the outer tube of the linear-motion bearing. The linear-motion bearing with a flange attached is characterized in that the flange is formed by a mold being arranged on the circumference of the outer tube of the linear-motion bearing, a fluid resin material being poured into the mold, and the material being hardened.
Description
本発明は、直動軸受の外筒の周囲に環状のフランジを配置したフランジ付き直動軸受に関する。
The present invention relates to a flanged linear motion bearing in which an annular flange is arranged around the outer cylinder of the linear motion bearing.
直動軸受（リニア軸受）は、当該軸受に挿入された軸体を支持し、その軸体の軸方向に付与される駆動力に従う軸体の直線方向（すなわち、軸方向）の円滑な移動を可能にする機械部品であり、各種の機械装置に組み込まれて使用される。
Linear motion bearings (linear bearings) support a shaft body inserted into the bearing and smoothly move the shaft body in the linear direction (that is, the axial direction) according to the driving force applied in the axial direction of the shaft body. It is a machine part that enables it, and is incorporated into various mechanical devices.
直動軸受は通常、金属材料製の外筒、外筒の内側に嵌め合わされた筒状の転動体保持器（球状ベアリング保持器）、そして筒状転動体保持器に保持された複数個の転動体（球状ベアリング）から構成される。軸体は、この筒状転動体保持器の内側に挿入され、筒状転動体保持器の内周側に部分的に突き出た複数の転動体により支持される。このため、軸体に軸方向の駆動力が付与されると、その駆動力に従って円滑な直線方向の移動が可能になる。
Linear motion bearings are usually made of an outer cylinder made of a metal material, a cylindrical rolling element cage (spherical bearing cage) fitted inside the outer cylinder, and a plurality of rolling elements held by the cylindrical rolling element cage. It consists of a moving body (spherical bearing). The shaft body is inserted inside the cylindrical rolling element holder and supported by a plurality of rolling elements partially protruding toward the inner peripheral side of the cylindrical rolling element holder. For this reason, when a driving force in the axial direction is applied to the shaft body, smooth linear movement is possible according to the driving force.
直動軸受の各種機械装置への組み込みを容易にするため、直動軸受の外筒の周囲に金属材料製のフランジを設けたフランジ付き直動軸受も一般的に用いられている。このフランジ付き直動軸受は通常、予めフランジを一体的に設けた外筒を作成し、このフランジ付き外筒に、複数の転動体を保持している筒状転動体保持器を嵌め込むことによって製造されている。なお、この筒状転動体保持器の嵌め込みに際しては、フランジ付き外筒に、予め複数の転動体を保持させた筒状転動体保持器を嵌め込む方法、あるいは先にフランジ付き外筒に、筒状転動体保持器を部分的に嵌め込んだのち、その筒状転動体保持器に転動体を嵌め込む方法が利用される。
In order to make it easy to incorporate the linear motion bearing into various mechanical devices, a linear motion bearing with a flange in which a flange made of a metal material is provided around the outer cylinder of the linear motion bearing is generally used. This flanged linear motion bearing is usually produced by creating an outer cylinder integrally provided with a flange in advance and fitting a cylindrical rolling element holder holding a plurality of rolling elements into the flanged outer cylinder. It is manufactured. When fitting the cylindrical rolling element cage, a method of fitting a cylindrical rolling element cage in which a plurality of rolling elements are held in advance into the flanged outer cylinder, or the flanged outer cylinder, A method of fitting the rolling element into the cylindrical rolling element holder after partially fitting the cylindrical rolling element holder is used.
従来一般的に利用されているフランジ付き直動軸受は、上記のように、予め一体成型した金属材料製のフランジ付き外筒を用いている。しかしながら、フランジ付き外筒を金属材料から一体成型する方法は、コストがかかるため、工業的製法として有利と云うことはできない。特に、外筒が同一形状で、フランジの形状あるいは付設位置が異なるフランジ付き外筒を多数製造する場合、それぞれのフランジ形状あるいは付設位置に対応した金型が必要となるとの問題がある。
As described above, flanged linear motion bearings that are generally used conventionally use a flanged outer cylinder made of a metal material that is integrally molded in advance. However, since the method of integrally molding the flanged outer cylinder from a metal material is costly, it cannot be said to be advantageous as an industrial manufacturing method. In particular, when a large number of flanged outer cylinders having the same outer shape and different flange shapes or attachment positions are manufactured, there is a problem that a mold corresponding to each flange shape or attachment position is required.
特許文献１には、フランジ付きリニアボールベアリング（すなわち、フランジ付き直動軸受）の製造に利用できる、外筒に、外筒とは別に独立に作成した樹脂材料製のフランジを用意し、その樹脂材料製フランジを外筒の周囲に固定してフランジ付きリニアボールベアリングを得る方法の発明が記載されている。そして、この文献に記載の発明では、樹脂材料製フランジに、外筒との係合用の爪を形成し、この爪を利用して、爪挿入孔を設けた外筒に固定する方法の記載がある。なお、この文献には、予め別体として作成したフランジを外筒に固定するに際して、対比技術として、ねじ込みやろう付けを利用する固定方法の説明が図面と共に記載されている。
In Patent Document 1, a flange made of a resin material prepared independently from the outer cylinder is prepared for the outer cylinder, which can be used for manufacturing a linear ball bearing with flange (that is, a linear motion bearing with flange), and the resin An invention of a method of obtaining a flanged linear ball bearing by fixing a material flange around the outer cylinder is described. In the invention described in this document, there is a description of a method of forming a claw for engaging with the outer cylinder on the flange made of a resin material, and using this claw to fix the claw insertion hole to the outer cylinder. is there. In this document, an explanation of a fixing method using screwing or brazing as a comparison technique when a separately prepared flange is fixed to the outer cylinder is described together with the drawings.
特許文献１に記載のフランジ付き直動軸受は、予め別体として作成した樹脂材料製フランジを外筒に嵌め込んでフランジ付き外筒を作製する方法を利用して製造することができる点で有用である。しかしながら、フランジの外筒への確実な固定を実現するために、予め爪と爪挿入孔を、フランジと外筒に形成しておく必要があり、従って、フランジ付き外筒の工業的製法としては、必ずしも有利な方法ということはできない。
The linear motion bearing with flange described in Patent Document 1 is useful in that it can be manufactured by using a method of manufacturing a flanged outer cylinder by fitting a flange made of a resin material, which has been prepared in advance, into the outer cylinder. It is. However, in order to realize secure fixing of the flange to the outer cylinder, it is necessary to previously form a claw and a claw insertion hole in the flange and the outer cylinder. Therefore, as an industrial manufacturing method of the flanged outer cylinder, However, this is not necessarily an advantageous method.
従って、本発明の課題は、工業的に有利に作製することができるフランジ付き外筒を用いる直動軸受を提供することにある。
Therefore, an object of the present invention is to provide a linear motion bearing using a flanged outer cylinder that can be produced industrially advantageously.
本発明は、金属材料からなる外筒、外筒の内側に嵌め合わされた筒状転動体保持器、そして筒状転動体保持器に保持された複数個の転動体を含む直動軸受の外筒の周囲に環状にフランジが備えられてなるフランジ付き直動軸受であって、該フランジが、直動軸受の外筒の周囲に金型を配し、その金型に流動性樹脂材料を注入したのち、固化させることにより形成したフランジであることを特徴とするフランジ付き直動軸受にある。
The present invention relates to an outer cylinder made of a metal material, a cylindrical rolling element holder fitted inside the outer cylinder, and an outer cylinder of a linear motion bearing including a plurality of rolling elements held by the cylindrical rolling element holder. A linear motion bearing with a flange in which a flange is annularly provided around the outer periphery of the flange. The flange has a mold arranged around the outer cylinder of the linear motion bearing, and a fluid resin material is injected into the mold. Then, the flanged linear motion bearing is characterized by being a flange formed by solidification.
本発明のフランジ付き直動軸受は、その外筒のフランジが形成される表面領域が粗面化処理されているか、あるいは該表面領域に接着性材料が付与されていることが望ましい。
In the linear motion bearing with flange according to the present invention, it is desirable that the surface region where the flange of the outer cylinder is formed is roughened or an adhesive material is applied to the surface region.
また、本発明のフランジ付き直動軸受は、その外筒のフランジが形成される表面領域に円周方向に延びる一もしくは二以上の数の溝が形成されていることが特に望ましい。
Further, in the linear motion bearing with flange according to the present invention, it is particularly desirable that one or two or more grooves extending in the circumferential direction are formed in the surface region where the flange of the outer cylinder is formed.
本発明はまた、直動軸受の金属材料からなる外筒の周囲に金型を配置する工程、該金型に流動性樹脂材料を注入する工程、金型に注入された流動性樹脂材料を固化させることにより該外筒の周囲に樹脂材料製フランジを形成する工程、そしてフランジが形成された外筒の内部に複数個の転動体を保持する筒状転動体保持器を嵌め込む工程を含むフランジ付き直動軸受の製造方法にもあり、この方法を利用することにより前記の本発明のフランジ付き直動軸受を工業的に簡便な方法で製造することができる。ここで、「フランジが形成された外筒の内部に複数個の転動体を保持する筒状転動体保持器を嵌め込む工程」は、フランジが形成された外筒に、予め複数の転動体を保持させた筒状転動体保持器を嵌め込む工程、あるいは先にフランジ付き外筒に、筒状転動体保持器を部分的に嵌め込んだのち、その筒状転動体保持器に転動体を嵌め込む工程のいずれであってもよい。
The present invention also includes a step of arranging a mold around an outer cylinder made of a metal material of a linear motion bearing, a step of injecting a fluid resin material into the mold, and solidifying the fluid resin material injected into the mold. A flange including a step of forming a flange made of a resin material around the outer cylinder, and a step of fitting a cylindrical rolling element holder for holding a plurality of rolling elements inside the outer cylinder in which the flange is formed There is also a manufacturing method of a linear motion bearing with a flange. By using this method, the linear motion bearing with a flange of the present invention can be manufactured by an industrially simple method. Here, the “step of fitting a cylindrical rolling element holder that holds a plurality of rolling elements inside the outer cylinder in which the flange is formed” is performed by previously attaching a plurality of rolling elements to the outer cylinder in which the flange is formed. The process of fitting the held cylindrical rolling element cage, or after first fitting the cylindrical rolling element cage in the flanged outer cylinder, and then fitting the rolling element into the cylindrical rolling element cage Any of the steps of
本発明のフランジ付き直動軸受は、直動軸受の外筒の表面に流動性樹脂材料を付与して、固化させて製造したものであるため、外筒の表面とフランジの内周面との密着性が高く、爪と爪挿入孔などの別の固定手段（接合手段）を用いなくても、外筒とフランジとの接合強度は、通常の使用目的では特に問題となることがない充分なレベルにある。なお、特に、外筒のフランジが形成される表面領域が粗面化処理されているか、あるいは該表面領域に接着性材料が付与されていると接合強度は高くなる。また、外筒のフランジが形成される表面領域に円周方向に延びる一もしくは二以上の数の溝が形成されている場合には、更に向上した接合強度が期待できる。
Since the linear motion bearing with flange of the present invention is manufactured by applying a fluid resin material to the surface of the outer cylinder of the linear bearing and solidifying it, the surface of the outer cylinder and the inner peripheral surface of the flange Adhesiveness is high, and the joining strength between the outer cylinder and the flange is not particularly problematic for normal use purposes without using another fixing means (joining means) such as a nail and a nail insertion hole. Is on the level. In particular, when the surface region where the flange of the outer cylinder is formed is roughened or an adhesive material is applied to the surface region, the bonding strength is increased. Further, when one or more grooves extending in the circumferential direction are formed in the surface region where the flange of the outer cylinder is formed, a further improved bonding strength can be expected.
先ず、本発明のフランジ付き直動軸受の代表的な実施態様を、添付の図面を参照しながら説明する。
First, a typical embodiment of a flanged linear motion bearing according to the present invention will be described with reference to the accompanying drawings.
図１には、本発明のフランジ付き直動軸受１０の構成例の斜視図（ａ）、底面図（ｂ）、そして側面図（ｃ）が示されている。図１に示したフランジ付き直動軸受１０では、直動軸受１１の一方の端部にリブ付きフランジ１２が形成されている。直動軸受１１は、直動軸受の一般的な構成である、外筒、外筒の内側に嵌め合わされている筒状転動体保持器、そして筒状転動体保持器に保持された複数個の転動体を含む直動軸受を用いることができる。直動軸受としては、無限循環型の直動軸受及び非無限循環型の直動軸受が知られているが、何れを用いてもよい。なお、フランジが、直動軸受の外筒の一方の端面に近接して形成されている場合には、図１に示されているように、外筒端面がフランジの端面と同一平面上にあることが望ましい。また、外筒端面がフランジ端面よりも突き出ている、すなわち、フランジが外筒端面に接してではなく、少し外筒の中央の側に寄って形成されていることも望ましい。このような構成により、各種機械装置と直動軸受との取り付け（組み込み）の位置あわせが容易になるとの利点がある。
FIG. 1 shows a perspective view (a), a bottom view (b), and a side view (c) of a configuration example of a flanged linear motion bearing 10 of the present invention. In the linear motion bearing 10 with flange shown in FIG. 1, a flange 12 with ribs is formed at one end of the linear motion bearing 11. The linear motion bearing 11 is a general configuration of the linear motion bearing, and includes an outer cylinder, a cylindrical rolling element holder fitted inside the outer cylinder, and a plurality of cylindrical rolling element holders held by the cylindrical rolling element holder. A linear bearing including a rolling element can be used. As the linear motion bearing, an infinite circulation type linear motion bearing and a non-infinite circulation type linear motion bearing are known, but any of them may be used. When the flange is formed close to one end face of the outer cylinder of the linear motion bearing, the outer cylinder end face is flush with the end face of the flange as shown in FIG. It is desirable. It is also desirable that the end surface of the outer cylinder protrudes beyond the end surface of the flange, that is, the flange is formed slightly closer to the center side of the outer cylinder, not in contact with the end face of the outer cylinder. With such a configuration, there is an advantage that it is easy to align the mounting (incorporation) of various mechanical devices and linear motion bearings.
無限循環型の直動軸受では、筒状転動体保持器に転動体循環溝を形成し、この転動体循環溝に複数個の転動体を収容する。これにより、軸体を支持する複数個の転動体の循環移動が可能になる。従って、支持する軸体の移動距離に制限がない。
In an infinite circulation type linear motion bearing, a rolling element circulation groove is formed in a cylindrical rolling element cage, and a plurality of rolling elements are accommodated in the rolling element circulation groove. Thereby, the circular movement of the some rolling element which supports a shaft body is attained. Therefore, there is no restriction on the moving distance of the shaft body to be supported.
非無限循環型の直動軸受では、筒状転動体保持器の壁体に、各々転動体を回転可能に収容保持する複数個の透孔を形成し、各透孔のそれぞれに転動体を収容する。これにより、軸体を支持する複数個の転動体が、筒状転動体保持器と共に軸方向に移動することが可能になる。軸体の移動距離は通常、軸体の移動の際に筒状転動体保持器が外筒の端部開口から突き出ないような距離に制限される。
In a non-infinite circulation type linear motion bearing, a plurality of through holes are formed in the wall of the cylindrical rolling element cage so that the rolling elements are rotatably accommodated, and the rolling elements are accommodated in the respective through holes. To do. Thereby, the plurality of rolling elements supporting the shaft body can move in the axial direction together with the cylindrical rolling element holder. The movement distance of the shaft body is usually limited to a distance that prevents the cylindrical rolling element holder from protruding from the end opening of the outer cylinder during the movement of the shaft body.
直動軸受が支持する軸体の例としては、断面が円形の軸体、あるいは周方向に沿って互いに間隔をあけて配置され複数本の直線溝を周面に備える軸体（スプライン軸とも呼ばれている）が挙げられる。軸体としては、中空の軸体を用いることもできる。
Examples of the shaft body supported by the linear bearing include a shaft body having a circular cross section, or a shaft body (also referred to as a spline shaft) provided with a plurality of linear grooves on the circumferential surface at intervals along the circumferential direction. Is). A hollow shaft body can also be used as the shaft body.
外筒は、例えば、鋼（例、ステンレススチール）に代表される金属材料から形成される。なお、例えば、フランジ付き直動軸受が水中あるいは高温の環境下で使用される場合には、外筒をセラミック材料から形成することもできる。
The outer cylinder is formed of, for example, a metal material typified by steel (eg, stainless steel). For example, when the flanged linear motion bearing is used in an underwater or high temperature environment, the outer cylinder can be formed of a ceramic material.
筒状転動体保持器は、例えば、金属材料や樹脂材料から形成される。樹脂材料の例としては、ポリアセタール樹脂、ポリフェニレンスルフィド（ＰＰＳ）樹脂、ポリアミド樹脂、およびポリエーテルエーテルケトン（ＰＥＥＫ）樹脂が挙げられる。
The cylindrical rolling element cage is made of, for example, a metal material or a resin material. Examples of the resin material include polyacetal resin, polyphenylene sulfide (PPS) resin, polyamide resin, and polyether ether ketone (PEEK) resin.
筒状転動体保持器は、例えば、前記の樹脂材料を各種の成形法（例、射出成形法、圧縮成形法、あるいは注型法など）で成形して作製することができる。
The cylindrical rolling element cage can be produced, for example, by molding the resin material by various molding methods (eg, injection molding method, compression molding method, or casting method).
転動体は、例えば、鋼（例、ステンレススチール）に代表される金属材料から形成される。また、例えば、フランジ付き直動軸受が水中あるいは高温の環境下で使用される場合には、転動体をセラミック材料から形成することもできる。
The rolling element is made of, for example, a metal material typified by steel (eg, stainless steel). For example, when a linear motion bearing with a flange is used in water or in a high temperature environment, the rolling element can be formed of a ceramic material.
転動体の例としては、球体（ボール）、およびローラ（中心軸に垂直な断面が円形の柱状体）が挙げられる。
Examples of rolling elements include a sphere (ball) and a roller (a columnar body having a circular cross section perpendicular to the central axis).
直動軸受には、例えば、外筒からの筒状転動体保持器の抜け出し（脱落）を防止するため、止め輪（スナップリング）が備えられていてもよい。また、外筒からの筒状転動体保持器の抜け出し（脱落）を防止する方法としては、上記の止め輪を配置する方法に代えて、他の方法を用いることができる。
The linear motion bearing may be provided with, for example, a retaining ring (snap ring) in order to prevent the cylindrical rolling element cage from coming off (falling off) from the outer cylinder. Further, as a method for preventing the cylindrical rolling element retainer from coming off (falling off) from the outer cylinder, other methods can be used instead of the above-described method of arranging the retaining ring.
リブ付きフランジは、公知の樹脂材料から形成することができる。樹脂材料としては、熱可塑性樹脂材料、あるいは各種の硬化性樹脂材料を用いることが好ましく、熱可塑性樹脂を用いることが特に好ましい。
The ribbed flange can be formed from a known resin material. As the resin material, it is preferable to use a thermoplastic resin material or various curable resin materials, and it is particularly preferable to use a thermoplastic resin.
熱可塑性樹脂の例としては、ポリアセタール樹脂、ポリフェニレンスルフィド（ＰＰＳ）樹脂、ポリアミド樹脂、およびポリエーテルエーテルケトン（ＰＥＥＫ）樹脂が挙げられる。
Examples of thermoplastic resins include polyacetal resins, polyphenylene sulfide (PPS) resins, polyamide resins, and polyether ether ketone (PEEK) resins.
図１に示した本発明のフランジ付き直動軸受は、例えば、直動軸受の金属材料からなる外筒の周囲に金型を配置する工程、該金型に流動性樹脂材料を注入する工程、金型に注入された流動性樹脂材料樹脂材料を固化させることにより該外筒の周囲に樹脂材料製フランジを形成する工程、そしてフランジが形成された外筒の内部に複数個の転動体を保持する筒状転動体保持器を嵌め込む工程を含む方法を利用して製造することができる。なお、ここでも、「フランジが形成された外筒の内部に複数個の転動体を保持する筒状転動体保持器を嵌め込む工程」は、フランジが形成された外筒に、予め複数の転動体を保持させた筒状転動体保持器を嵌め込む工程、あるいは先にフランジ付き外筒に、筒状転動体保持器を部分的に嵌め込んだのち、その筒状転動体保持器に転動体を嵌め込む工程のいずれであってもよい。また、個々で用いる流動性樹脂材料樹脂材料としては、それ自体が液体である熱硬化性樹脂原料（モノマー組成物）、溶融状態にある熱可塑性樹脂材料が一般に用いられる。
The flanged linear motion bearing of the present invention shown in FIG. 1 includes, for example, a step of placing a mold around an outer cylinder made of a metal material of the linear motion bearing, a step of injecting a fluid resin material into the mold, A process for forming a resin material flange around the outer cylinder by solidifying the resin material flowing into the mold, and holding a plurality of rolling elements inside the outer cylinder in which the flange is formed It can manufacture using the method including the process of fitting the cylindrical rolling-element holder | retainer to do. In this case as well, the “step of fitting a cylindrical rolling element holder that holds a plurality of rolling elements inside the outer cylinder in which the flange is formed” is performed in advance on the outer cylinder in which the flange is formed. The step of fitting the cylindrical rolling element holder holding the moving body, or after first fitting the cylindrical rolling element holder into the flanged outer cylinder, and then rolling the rolling element to the cylindrical rolling element holder Any of the steps of fitting may be used. In addition, as the fluid resin material used individually, a thermosetting resin material (monomer composition) that is a liquid itself, and a thermoplastic resin material in a molten state are generally used.
図２に、図１のフランジ付き直動軸受１０の側面断面図を示す。図２のフランジ付き直動軸受１０の直動軸受１１は、外筒１３、外筒の内側に嵌め合わされている筒状転動体保持器１４、そして筒状転動体保持器に保持された複数個の転動体１５を含み、さらに外筒１３からの筒状転動体保持器１４の抜け出し（脱落）を防止するための止め輪（スナップリング）１６が備えられている。また、直動軸受１１の外筒１３の表面（外周表面）のフランジが設けられている領域１７には、複数の円周方向に延びる溝が形成されている。この溝は、その領域の周囲にその場で（in situ）設けられる樹脂材料製フランジ１２の高接合強度の固定に有効である。なお、このフランジが設けられる領域には、溝の代わりに粗面化処理が施されていても良く、あるいは当該領域に接着性材料が塗布などの方法で付与されていてもよい。フランジ１２には、フランジ付き直動軸受を各種機械装置に組み込む際の取り付けのための取り付け孔（透孔）１８が設けられている。
FIG. 2 shows a side sectional view of the flanged linear bearing 10 of FIG. The linear motion bearing 11 of the flanged linear motion bearing 10 shown in FIG. 2 includes an outer cylinder 13, a cylindrical rolling element holder 14 fitted inside the outer cylinder, and a plurality of cylinders held by the cylindrical rolling element holder. Further, a retaining ring (snap ring) 16 is provided for preventing the cylindrical rolling element retainer 14 from coming off (falling off) from the outer cylinder 13. A plurality of grooves extending in the circumferential direction are formed in the region 17 where the flange (surface of the outer peripheral surface) of the outer cylinder 13 of the linear motion bearing 11 is provided. This groove is effective for fixing the high bonding strength of the flange 12 made of a resin material provided in-situ around the region. In addition, in the area | region where this flange is provided, the roughening process may be given instead of the groove | channel, or the adhesive material may be provided to the said area | region by methods, such as application | coating. The flange 12 is provided with an attachment hole (through hole) 18 for attachment when the linear motion bearing with flange is incorporated into various mechanical devices.
図３は、図１に示したリブ付きのフランジが設けられた直動軸受の変形で、直動軸受の外筒に、フランジとしてリブのついていないフランジが設けられている点以外は同じ構造を持つ。図３の（ａ）、（ｂ）、（ｃ）は、第１図と同様に、フランジ付き直動軸受１０の構成例の斜視図（ａ）、底面図（ｂ）、そして側面図（ｃ）を示す。
FIG. 3 is a modification of the linear motion bearing provided with the flange with the rib shown in FIG. 1, and has the same structure except that the flange of the linear motion bearing is provided with a flange without a rib as a flange. Have. 3 (a), 3 (b) and 3 (c) are a perspective view (a), a bottom view (b), and a side view (c) of a configuration example of the flanged linear motion bearing 10, as in FIG. ).
図４は、図１に示したリブ付きのフランジが設けられた直動軸受の変形で、リブ付きフランジの付設位置が外筒の中央部にあるタイプのフランジ付き直動軸受を示す。図４の（ａ）、（ｂ）、（ｃ）も、第１図と同様に、フランジ付き直動軸受１０の構成例の斜視図（ａ）、底面図（ｂ）、そして側面図（ｃ）を示す。
FIG. 4 shows a linear motion bearing with a flange of a type in which the flanged flange shown in FIG. 1 is a modification of the linear motion bearing provided with a flange with a rib, and the attachment position of the flange with the rib is at the center of the outer cylinder. 4 (a), 4 (b), and 4 (c) are also a perspective view (a), a bottom view (b), and a side view (c) of a configuration example of the flanged linear motion bearing 10, as in FIG. ).
１０ フランジ付き直動軸受
１１ 直動軸受
１２ フランジ
１３ 外筒
１４ 筒状転動体保持器
１５ 転動体（ボールベアリング）
１６ 止め輪
１７ フランジ形成領域
１８ 取り付け孔 DESCRIPTION OFSYMBOLS 10 Linear motion bearing with flange 11 Linear motion bearing 12 Flange 13 Outer cylinder 14 Cylindrical rolling element cage 15 Rolling element (ball bearing)
16Retaining Ring 17 Flange Formation Area 18 Mounting Hole
１１ 直動軸受
１２ フランジ
１３ 外筒
１４ 筒状転動体保持器
１５ 転動体（ボールベアリング）
１６ 止め輪
１７ フランジ形成領域
１８ 取り付け孔 DESCRIPTION OF
16
Claims (8)
- 金属材料からなる外筒、外筒の内側に嵌め合わされた筒状転動体保持器、そして筒状転動体保持器に保持された複数個の転動体を含む直動軸受の外筒の周囲に環状にフランジが備えられてなるフランジ付き直動軸受であって、該フランジが、直動軸受の外筒の周囲に金型を配し、その金型に流動性樹脂材料を注入したのち、固化させることにより形成したフランジであることを特徴とするフランジ付き直動軸受。 An outer cylinder made of a metal material, a cylindrical rolling element holder fitted inside the outer cylinder, and a ring around the outer cylinder of the linear motion bearing including a plurality of rolling elements held by the cylindrical rolling element holder The flange is a linear motion bearing with a flange, and the flange places a mold around the outer cylinder of the linear motion bearing, injects a fluid resin material into the mold, and then solidifies the mold. A linear motion bearing with a flange, wherein the flange is a flange formed by the above.
- 直動軸受の外筒のフランジが形成される表面領域が粗面化処理されているか、あるいは該表面領域に接着性材料が付与されている請求項１に記載のフランジ付き直動軸受。 2. The linear motion bearing with a flange according to claim 1, wherein a surface region where the flange of the outer cylinder of the linear motion bearing is formed is roughened, or an adhesive material is applied to the surface region.
- 直動軸受の外筒のフランジが形成される表面領域に円周方向に延びる一もしくは二以上の数の溝が形成されている請求項１に記載のフランジ付き直動軸受。 The linear motion bearing with a flange according to claim 1, wherein one or two or more grooves extending in the circumferential direction are formed in a surface region where the flange of the outer cylinder of the linear motion bearing is formed.
- フランジがリブ付きフランジである請求項１乃至３のうちのいずれかの項に記載のフランジ付き直動軸受。 The flanged linear motion bearing according to any one of claims 1 to 3, wherein the flange is a ribbed flange.
- フランジが直動軸受の外筒の一方の端面に近接して形成され、かつ該外筒端面がフランジの端面と同一平面上にあるか、あるいは外筒端面がフランジ端面よりも突き出ている請求項１乃至４のうちのいずれかの項に記載のフランジ付き直動軸受。 The flange is formed close to one end face of the outer cylinder of the linear bearing, and the outer cylinder end face is flush with the end face of the flange, or the outer cylinder end face protrudes from the flange end face. 5. A linear motion bearing with a flange according to any one of 1 to 4.
- 直動軸受の金属材料からなる外筒の周囲に金型を配置する工程、該金型に流動性樹脂材料を注入する工程、金型に注入された流動性樹脂材料を固化させることにより該外筒の周囲に樹脂材料製フランジを形成する工程、そしてフランジが形成された外筒の内部に複数個の転動体を保持する筒状転動体保持器を嵌め込む工程を含むフランジ付き直動軸受の製造方法。 A step of arranging a mold around an outer cylinder made of a metal material of the linear bearing, a step of injecting a fluid resin material into the mold, and solidifying the fluid resin material injected into the mold A flanged linear motion bearing including a step of forming a flange made of a resin material around a cylinder, and a step of fitting a cylindrical rolling element holder holding a plurality of rolling elements inside an outer cylinder in which the flange is formed Production method.
- 直動軸受の外筒のフランジが形成される表面領域が粗面化処理されているか、あるいは該表面領域に接着性材料が付与されている請求項６に記載のフランジ付き直動軸受の製造方法。 The method of manufacturing a linear motion bearing with a flange according to claim 6, wherein a surface region where the flange of the outer cylinder of the linear motion bearing is formed is roughened, or an adhesive material is applied to the surface region. .
- 直動軸受の外筒のフランジが形成される表面領域に円周方向に延びる一もしくは二以上の数の溝が形成されている請求項６に記載のフランジ付き直動軸受の製造方法。 The method for manufacturing a flanged linear motion bearing according to claim 6, wherein one or two or more grooves extending in the circumferential direction are formed in a surface region where the flange of the outer cylinder of the linear motion bearing is formed.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201480044693.2A CN105431646B (en) | 2013-08-08 | 2014-08-08 | Flanged pin linear motion bearing |
| KR1020167001783A KR102263558B1 (en) | 2013-08-08 | 2014-08-08 | Linear-motion bearing with flange attached |
| JP2015530981A JP6708409B2 (en) | 2013-08-08 | 2014-08-08 | Linear bearing with flange |
| HK16106393.2A HK1218439A1 (en) | 2013-08-08 | 2016-06-06 | Linear-motion bearing with flange attached |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-165371 | 2013-08-08 | ||
| JP2013165371 | 2013-08-08 |
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|---|---|
| WO2015020198A1 true WO2015020198A1 (en) | 2015-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2014/071021 WO2015020198A1 (en) | 2013-08-08 | 2014-08-08 | Linear-motion bearing with flange attached |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6708409B2 (en) |
| KR (1) | KR102263558B1 (en) |
| HK (1) | HK1218439A1 (en) |
| TW (1) | TWI611115B (en) |
| WO (1) | WO2015020198A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102189531B1 (en) * | 2019-08-29 | 2020-12-11 | 박순곤 | Insert injection mold for flanged integrated linear bearing |
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| JPH0322119U (en) * | 1989-07-17 | 1991-03-06 | ||
| JPH07113410A (en) * | 1993-07-29 | 1995-05-02 | Ntn Corp | Simple nut |
| JP2000240750A (en) * | 1999-02-19 | 2000-09-05 | Ntn Corp | Coupling and moving table unit using it |
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| JP2894275B2 (en) | 1996-04-25 | 1999-05-24 | 竹内精工株式会社 | How to make a linear ball bearing mounting flange and a linear ball bearing with flange |
| JPS5861940U (en) * | 1981-10-21 | 1983-04-26 | オイレス工業株式会社 | Rod guide bearing body for double cylinder shock absorber |
| JPS61240598A (en) * | 1985-04-17 | 1986-10-25 | 片山チエン株式会社 | Plastic equipment composition member |
| TW447657U (en) * | 2000-12-29 | 2001-07-21 | Power Perfect Co Ltd | Improved linear bearing structure |
| JP4114543B2 (en) * | 2003-05-27 | 2008-07-09 | 株式会社ジェイテクト | Electric power steering device and method of manufacturing electric power steering device |
| JP4450684B2 (en) * | 2004-06-29 | 2010-04-14 | 株式会社ブリヂストン | Tire molding system |
| JP4351244B2 (en) * | 2006-11-29 | 2009-10-28 | 有限会社浜インターナショナル | MOVING DEVICE USING ROLLER AND ROLLER MANUFACTURING METHOD |
| JP5022932B2 (en) * | 2008-02-04 | 2012-09-12 | 株式会社ミツバ | Electric motor |
| JP5756304B2 (en) * | 2011-02-22 | 2015-07-29 | ミネベア株式会社 | Linear actuator |
-
2014
- 2014-08-08 WO PCT/JP2014/071021 patent/WO2015020198A1/en active Application Filing
- 2014-08-08 TW TW103127429A patent/TWI611115B/en active
- 2014-08-08 KR KR1020167001783A patent/KR102263558B1/en active IP Right Grant
- 2014-08-08 JP JP2015530981A patent/JP6708409B2/en active Active
-
2016
- 2016-06-06 HK HK16106393.2A patent/HK1218439A1/en unknown
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|---|---|---|---|---|
| JPH022525U (en) * | 1988-06-16 | 1990-01-09 | ||
| JPH0322119U (en) * | 1989-07-17 | 1991-03-06 | ||
| JPH07113410A (en) * | 1993-07-29 | 1995-05-02 | Ntn Corp | Simple nut |
| JP2000240750A (en) * | 1999-02-19 | 2000-09-05 | Ntn Corp | Coupling and moving table unit using it |
| JP2004263792A (en) * | 2003-03-03 | 2004-09-24 | Koyo Seiko Co Ltd | Gear device, and ball screw device |
| JP2012132555A (en) * | 2010-11-30 | 2012-07-12 | Nsk Ltd | Ball screw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105431646A (en) | 2016-03-23 |
| TW201522800A (en) | 2015-06-16 |
| TWI611115B (en) | 2018-01-11 |
| JP6708409B2 (en) | 2020-06-10 |
| KR20160040174A (en) | 2016-04-12 |
| JPWO2015020198A1 (en) | 2017-03-02 |
| HK1218439A1 (en) | 2017-02-17 |
| KR102263558B1 (en) | 2021-06-09 |
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