JP4747853B2 - Fixed-side sealing member for sensor-equipped sealing device for rolling bearing device and method for manufacturing the same - Google Patents

Fixed-side sealing member for sensor-equipped sealing device for rolling bearing device and method for manufacturing the same Download PDF

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JP4747853B2
JP4747853B2 JP2006013506A JP2006013506A JP4747853B2 JP 4747853 B2 JP4747853 B2 JP 4747853B2 JP 2006013506 A JP2006013506 A JP 2006013506A JP 2006013506 A JP2006013506 A JP 2006013506A JP 4747853 B2 JP4747853 B2 JP 4747853B2
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sensor
fixed
resin
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metal core
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JP2007192383A (en
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高広 柴山
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JTEKT Corp
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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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • 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
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

Description

本発明は、転がり軸受装置に用いられるセンサ付きシール装置の固定側シール部材とその製造方法に関する。   The present invention relates to a stationary seal member of a sealing device with a sensor used for a rolling bearing device and a method for manufacturing the same.

自動車においては、その制御を行うため種々の情報が必要であることから、車輪が取り付けられる回転側軌道部材、車体に固定される固定側軌道輪を有する転がり軸受装置に、センサ装置を設けることが提案されている。このような転がり軸受装置として、例えば、
外輪部材と、内輪部材と、軸方向一端側にフランジを有するハブ輪と、両輪間に配置された転動体と、両輪インナ側端部間に配置されたセンサ付きシール装置を備えたものが知られており、当該シール装置は、センサを有し外輪部材に嵌合された固定側シール部材と、パルサを有し内輪部材に嵌合された回転側シール部材で構成されている（例えば、特許文献１参照）。
特開２００５−１３３７７２号公報 In automobiles, various information is required to perform the control. Therefore, it is possible to provide a sensor device in a rolling bearing device having a rotating side race member to which wheels are attached and a fixed side race ring fixed to a vehicle body. Proposed. As such a rolling bearing device, for example,
An outer ring member, an inner ring member, a hub ring having a flange on one end in the axial direction, a rolling element disposed between both wheels, and a sensor-equipped seal device disposed between both wheel inner side ends are known. The sealing device includes a fixed-side seal member that has a sensor and is fitted to an outer ring member, and a rotary-side seal member that has a pulser and is fitted to the inner ring member (for example, a patent) Reference 1).
Japanese Patent Laid-Open No. 2005-133772

上記転がり軸受装置に設けられた固定側シール部材は、例えばシール部を備え外輪部材に嵌合される環状の芯金６０に、センサが内蔵されたセンサ内蔵部材６５（図８参照）をインサート成形により樹脂で一体化することで製造される。芯金６０には外輪部材に嵌合される円筒部６１が設けられ、センサ内蔵部材６５はコネクタ部６６及びセンサ部６７を備えて略Ｌ字状に形成されている。固定側シール部材を製作する際には、金型内において同図に示すようにセンサ内蔵部材６５の内側角部を円筒部６１の端縁に当てた状態とし、そこへ樹脂を流し込んで一体化する。しかしその際、芯金６０に対するセンサ内蔵部材６５の径方向Ａにおける位置が定まり難く、センサの検出精度が低下することや不良品が発生する。
本発明はこのような従来技術の問題点に鑑み、センサの検出精度を維持することができる転がり軸受装置用固定側シール部材と、このような固定側シール部材が得られ不良品を発生させない製造方法を提供することを目的とする。 The fixed-side seal member provided in the rolling bearing device includes, for example, a sensor built-in member 65 (see FIG. 8) in which a sensor is built in an annular metal core 60 that includes a seal portion and is fitted to an outer ring member. It is manufactured by integrating with resin. The metal core 60 is provided with a cylindrical portion 61 fitted to the outer ring member, and the sensor built-in member 65 includes a connector portion 66 and a sensor portion 67 and is formed in a substantially L shape. When manufacturing the fixed side seal member, the inner corner of the sensor built-in member 65 is in contact with the edge of the cylindrical portion 61 in the mold as shown in FIG. To do. However, at that time, the position of the sensor built-in member 65 with respect to the core metal 60 in the radial direction A is difficult to be determined, so that the detection accuracy of the sensor is lowered and defective products are generated.
In view of the problems of the prior art, the present invention provides a fixed-side seal member for a rolling bearing device that can maintain the detection accuracy of the sensor, and a manufacturing method that does not cause defective products by obtaining such a fixed-side seal member. It aims to provide a method.

上記目的を達成するため、本発明は次の技術的手段を講じた。
すなわち、本発明は、シール部を備え固定側軌道輪に嵌合される環状の芯金の内周側にセンサを樹脂で一体化する次の工程（ａ）〜（ｄ）を含むことを特徴とする。
（ａ）前記センサが内蔵されると共に、前記芯金の軸方向外側の端縁に沿って嵌め込み可能な位置決め溝を内側角部近傍に有するＬ字状のセンサ内蔵部材を樹脂成形により得る第一工程
（ｂ）前記芯金の端縁に前記センサ内蔵部材の位置決め溝が嵌め込まれ、当該芯金に対する当該センサ内蔵部材の径方向における位置決めがされた状態で、前記芯金及び前記センサ内蔵部材を成形金型にセットする第二工程
（ｃ）前記成形金型に溶融樹脂を流し込んで硬化させ、前記芯金に前記センサ内蔵部材をインサート成形により一体化する第三工程
（ｄ）前記成形金型から前記樹脂で一体化された成形品を取り出して前記固定側シール部材を得る第四工程 In order to achieve the above object, the present invention takes the following technical means.
That is, the present invention includes the following steps (a) to (d) in which the sensor is integrated with a resin on the inner peripheral side of an annular cored bar that is provided with a seal portion and is fitted to the stationary raceway. And
(A) together with the sensor is built, an L-shaped sensor incorporated members that have a axially outer end positioning groove which can be fitted along the edge in the vicinity of the inner corner portion of the metal core obtained by resin molding 1st process (b) In the state which the positioning groove | channel of the said sensor built-in member was inserted by the edge of the said metal core, and the positioning in the radial direction of the said sensor built-in member with respect to the said metal core was carried out, the said metal core and the said sensor built-in The second step of setting the member in the molding die (c) The third step of pouring the molten resin into the molding die and curing it, and integrating the sensor built-in member into the core metal by insert molding (d) The molding A fourth step of obtaining the fixed-side seal member by taking out a molded product integrated with the resin from a mold

上記の第一工程〜第四工程を含む製造方法とすれば、芯金に対するセンサ内蔵部材の径方向における位置決めがされた状態で、芯金にセンサ内蔵部材がインサート成形で一体化されるため、芯金に対するセンサの径方向における位置ずれのない固定側シール部材を得ることができる。これにより、センサの位置ずれによる不良品を発生させず、転がり軸受装置のセンサの検出精度を維持することができる。   If the manufacturing method includes the first step to the fourth step, the sensor built-in member is integrated with the cored bar by insert molding in a state where the sensor built-in member is positioned in the radial direction with respect to the cored bar. It is possible to obtain a fixed-side seal member that is free from positional deviation in the radial direction of the sensor with respect to the cored bar. Thereby, the detection accuracy of the sensor of the rolling bearing device can be maintained without generating a defective product due to the positional deviation of the sensor.

また、本発明の転がり軸受装置用センサ付きシール装置の固定側シール部材は、シール部を備え固定側軌道輪に嵌合される環状の芯金と、この芯金の内周側に位置しているセンサが内蔵されると共に、当該芯金の軸方向外側の端縁に沿って嵌め込まれた位置決め溝を内側角部近傍に有するＬ字状の樹脂成形されたセンサ内蔵部材と、前記芯金と前記センサ内蔵部材とを一体化すべくインサート成形することで形成された環状の樹脂部材とを備えていることを特徴とする。 Further, the fixed-side seal member of the sensor-equipped seal device for the rolling bearing device according to the present invention is provided with an annular core bar that includes a seal portion and is fitted to the fixed-side raceway ring, and an inner peripheral side of the core bar. together have the sensor is built, and the built-in sensor member axially outward of the positioning groove fitted along the edge which is L-shaped resin molded that Yusuke near the inner corner portion of the core metal, the core characterized in that it comprises a ring-shaped resin member formed by insert molding so as to integrate with the gold sensor incorporated member.

上記本発明によれば、芯金の軸方向外側の端縁にセンサ内蔵部材の位置決め溝を嵌め込んだ状態で樹脂部材により一体化されたものとなっているため、芯金に対するセンサの径方向における位置ずれがない固定側シール部材となっている。これにより、センサの検出精度を維持することができる。   According to the present invention, since the resin member is integrated with the positioning groove of the sensor built-in member fitted into the axially outer edge of the core metal, the radial direction of the sensor with respect to the core metal This is a fixed-side seal member with no misalignment. Thereby, the detection accuracy of the sensor can be maintained.

上記の通り本発明によれば、芯金に対するセンサ内蔵部品の径方向における位置決めがされた状態でインサート成形されているので、芯金に対するセンサの径方向における位置ずれがなく、固定側シール部材の不良品が発生せず、転がり軸受装置のセンサの検出精度を維持することができる。   As described above, according to the present invention, since the insert molding is performed in a state where the sensor built-in component with respect to the core metal is positioned in the radial direction, there is no positional deviation in the radial direction of the sensor with respect to the core metal, and the fixed-side seal member A defective product does not occur, and the detection accuracy of the sensor of the rolling bearing device can be maintained.

以下、本発明の実施形態について図面を参照しながら説明する。図１は本発明の固定側シール部材１を有するシール装置７（センサ付きシール装置）が装着された転がり軸受装置２の一実施形態を示しており、図２はその要部拡大図であり、図３はその正面図である。この転がり軸受装置２は、外輪部材３（固定側軌道輪）と、内輪部材４（回転側軌道輪）と、軸方向一端部にフランジ５１が設けられたハブ輪５と、両輪３，４の間に配置された転動体６と、両輪インナ側端部間に配置されたシール装置７を備えている。このうちシール装置７は、外輪部材３に嵌合された固定側シール部材１と、内輪部材４に嵌合された回転側シール部材８で構成されている。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a rolling bearing device 2 to which a seal device 7 (a seal device with a sensor) having a fixed-side seal member 1 according to the present invention is mounted, and FIG. FIG. 3 is a front view thereof. The rolling bearing device 2 includes an outer ring member 3 (fixed side raceway ring), an inner ring member 4 (rotation side raceway ring), a hub ring 5 having a flange 51 at one end in the axial direction, and both wheels 3 and 4. A rolling element 6 disposed between them and a seal device 7 disposed between both wheel inner side end portions are provided. Among these, the sealing device 7 includes a fixed-side seal member 1 fitted to the outer ring member 3 and a rotation-side seal member 8 fitted to the inner ring member 4.

固定側シール部材１は、シール部材１４（シール部）を備え外輪部材３のインナ側端部に嵌合される環状の芯金１０と（図４参照）、この芯金１０の内周側に位置しているセンサ２２ｓが内蔵されているＬ字状のセンサ内蔵部材２０と（図５参照）、芯金１０とセンサ内蔵部材２０とを一体化すべくインサート成形することで形成された樹脂部材３０とを備えている。なお、図には、センサ内蔵部材２０を構成する樹脂と当該樹脂部材３０とが一体となった状態が示されている。樹脂部材３０は環状であり、その環状部分の外径は外輪部材３のインナ側端部の外径に略等しくなっている。また、当該樹脂部材３０の上部には、径方向外方に延びる突出部３１が設けられており、この突出部３１の上端には車体側に設けられた処理手段とセンサ２２ｓを結ぶハーネスを取り付けるためのコネクタ部３２が一体に形成されている。コネクタ部３２にはコネクタピン２１ｐが設けられており、当該コネクタピン２１ｐとセンサ２２ｓがリード線２４を介して接続されている。そして、上記センサ２２ｓ、コネクタピン２１ｐ、リード線２４、及び図示しない信号処理手段等によって、センサ装置が構成されている。 The fixed-side seal member 1 includes a ring-shaped metal core 10 that includes a seal member 14 (seal part) and is fitted to an inner side end of the outer ring member 3 (see FIG. 4), and an inner peripheral side of the metal core 10. position to which the sensor 22s is an L-shaped sensor incorporated member 20 that has a built (see FIG. 5), the core metal 10 and the resin member 30 formed by insert molding so as to integrate the sensor internal member 20 And. In the figure, a state in which the resin constituting the sensor built-in member 20 and the resin member 30 are integrated is shown. Resin member 30 is ring-shaped, the outer diameter of the annular portion is substantially equal to the outer diameter of the inner end of the outer ring member 3. Further, a protruding portion 31 extending radially outward is provided on the upper portion of the resin member 30, and a harness connecting the processing means provided on the vehicle body side and the sensor 22s is attached to the upper end of the protruding portion 31. The connector part 32 for this is integrally formed. The connector portion 32 is provided with a connector pin 21p, and the connector pin 21p and the sensor 22s are connected via a lead wire 24. The sensor 22s, connector pin 21p, lead wire 24, signal processing means (not shown), and the like constitute a sensor device.

回転側シール部材８は、内輪部材４の外周面に嵌合された環状のスリンガー８１と、このスリンガー８１に固定されると共にパルサを有する環状の支持部材８２とを備えている。スリンガー８１は、内輪部材４の外周面に嵌合された円環部ｅと、円環部ｅの一端部から径方向外方に延びる外側部ｇ、外側部ｇの一端部からアウタ側に向かって延びる外周部ｉ、さらにこの外周部ｉの一端部から径方向内方に延びる内側部ｎとからなっている。また、支持部材８２は、上記円環部ｅに固定された内周部ｓ、この内周部ｓのインナ側端部から径方向外方へ延びる外側部ｂ、及び外側部ｂの一端部からアウタ側に向かって延びるパルサｐからなっている。そして、このパルサｐは、固定側シール部材１のセンサ２２ｓのセンシング面に径方向内方から臨まされている。また、固定側シール部材１のシール部材１４が内側部ｎ及び円環部ｅに当接しており、軸受内部と外部との間が当該シール部材１４によってシールされている。   The rotation-side seal member 8 includes an annular slinger 81 fitted to the outer peripheral surface of the inner ring member 4 and an annular support member 82 fixed to the slinger 81 and having a pulser. The slinger 81 has an annular part e fitted to the outer peripheral surface of the inner ring member 4, an outer part g extending radially outward from one end part of the annular part e, and an outer side from one end part of the outer part g. And an inner part n extending radially inward from one end of the outer part i. The support member 82 includes an inner peripheral portion s fixed to the annular portion e, an outer portion b extending radially outward from an inner side end portion of the inner peripheral portion s, and one end portion of the outer portion b. It consists of a pulsar p extending toward the outer side. The pulser p faces the sensing surface of the sensor 22s of the fixed-side seal member 1 from the inside in the radial direction. Further, the seal member 14 of the fixed-side seal member 1 is in contact with the inner portion n and the annular portion e, and the inside and outside of the bearing are sealed by the seal member 14.

固定側シール部材１を構成する芯金１０は、図４及び図６（ａ）に示すように、外輪部材に嵌合される外周側円筒部１１、この外周側円筒部１１の一端から径方向内方へ延びるフランジ部１２、及び外周側円筒部１１よりも幅の狭い内周側円筒部１３、及び内周側円筒部１３から径方向内方へ延びる内側フランジ部１４により構成されている。このうち、外周側円筒部１１には、次に説明するセンサ内蔵部材２０が固定される切り欠き部１１ａ、及び周方向に等間隔をおいて貫通形成された長孔部１１ｂを有している。切り欠き部１１ａは、センサ内蔵部品２０の略幅と同じ周方向長さで切り欠かれており、これによりセンサ内蔵部品２０の芯金１０に対する周方向の位置ずれが規制される。また、長孔部１１ｂには、成形の際の樹脂３０が充填されて、樹脂３０と芯金１０との相対的なずれも規制されるようになっている。また、芯金１０の内側フランジ部１４には弾性体からなるシール部材１４が接着されている。   As shown in FIG. 4 and FIG. 6A, the cored bar 10 constituting the fixed-side seal member 1 has a radially outer cylindrical portion 11 fitted to the outer ring member and a radial direction from one end of the outer circumferential cylindrical portion 11. The flange portion 12 extends inward, the inner peripheral cylindrical portion 13 is narrower than the outer peripheral cylindrical portion 11, and the inner flange portion 14 extends radially inward from the inner peripheral cylindrical portion 13. Of these, the outer cylindrical portion 11 has a notch portion 11a to which a sensor built-in member 20 to be described below is fixed, and a long hole portion 11b that is formed through at equal intervals in the circumferential direction. . The notch portion 11a is notched with a circumferential length substantially the same as the width of the sensor built-in component 20, thereby restricting the displacement in the circumferential direction of the sensor built-in component 20 with respect to the cored bar 10. Further, the long hole portion 11b is filled with the resin 30 at the time of molding, and the relative displacement between the resin 30 and the cored bar 10 is also regulated. A seal member 14 made of an elastic material is bonded to the inner flange portion 14 of the cored bar 10.

上記シール装置７のうち固定側シール部材１を製造する方法について説明する。まず、第一工程として、センサ２２ｓ等が埋設されたセンサ内蔵部材２０を射出成形によって製作する。センサ内蔵部材２０は、図５及び図６（ｂ）に示すように、芯金１０に固定された状態で上記外周円筒部１１の端縁（切り欠き部１１ａ）を境に、径方向外方に延びるコネクタ部２１とインナ側に延びるセンサ部２２とによりＬ字状に形成されている。センサ部２２の先端にはセンサ２２ｓが埋設され、コネクタ部２１には車体側の図示しない処理手段を結ぶハーネスを取り付けるためのコネクタピン２１ｐ（一部が突出されている）が埋設され、これらセンサ部２２及びコネクタ部２１には、コネクタピン２１ｐとセンサ２２ｓを結ぶリード線２４が埋設されている。また、コネクタ部２１の基端部の内側（内側角部近傍）には、上記切り欠き部１１ａ（端縁）に沿って嵌め込み可能な位置決め溝２３が形成されている。この位置決め溝２３は、当該切り欠き部１１ａと同じように若干湾曲しており、当該切り欠き部１１ａの厚み寸法と略同じ幅でコネクタ部２１の短手方向を横断している。なお、位置決め溝２３は、金型に溝をつけることによって成形時に形成してもよく、後加工によって形成してもよい。 A method for manufacturing the fixed-side sealing member 1 in the sealing device 7 will be described. First, as a first step, the sensor built-in member 20 in which the sensor 22s and the like are embedded is manufactured by injection molding. As shown in FIGS. 5 and 6B, the sensor built-in member 20 is fixed to the core metal 10 and is radially outward from the end edge (notch portion 11 a) of the outer peripheral cylindrical portion 11. It is formed in by Ri L-shape and the sensor portion 22 extending to the connector portion 21 and the inner side extending. A sensor 22s is embedded at the tip of the sensor unit 22, and a connector pin 21p (a part of which protrudes) is embedded in the connector unit 21 for attaching a harness that connects processing means (not shown) on the vehicle body side. A lead wire 24 connecting the connector pin 21p and the sensor 22s is embedded in the portion 22 and the connector portion 21. In addition, a positioning groove 23 that can be fitted along the notch portion 11a (end edge) is formed inside the base end portion of the connector portion 21 (in the vicinity of the inner corner). The positioning groove 23 is slightly curved in the same manner as the cutout portion 11a, and traverses the short direction of the connector portion 21 with the same width as the thickness dimension of the cutout portion 11a. The positioning groove 23 may be formed at the time of molding by forming a groove in the mold, or may be formed by post-processing.

次に、第二工程として、芯金１０の切り欠き部１１ａ（端縁）にセンサ内蔵部材２０の位置決め溝２３を嵌め込み、この状態で芯金１０及びセンサ内蔵部材２０を成形金型にセットする。これにより、芯金１０に対するセンサ内蔵部材２０の径方向における位置決めがされ、成形中に芯金１０に対するセンサ２２ｓの位置ずれが起こらない。
具体的には、図７に示すように、第１治具５０、第２治具５１、及びコネクタピンが差し込まれる差込穴を有する第３治具５２を使用する。まず、第１治具５０、第２治具５１を金型の所定の位置に設置し、シール部材１４が取り付けられた芯金１０をセットする。第３治具５２の差込穴に、センサ内蔵部品２０のコネクタピン２１ｐを差し込んでおき、芯金１０の切り欠き部１１ａに当該センサ内蔵部品２０の位置決め溝２３を嵌め込んで、センサ内蔵部品２０を径方向で動かないようにしておく。このようにして位置決めを行った後、次の第三工程として、溶融樹脂を流し込んで硬化させる（インサート成形）。第四工程として、金型から樹脂３０で一体となった成型品である固定側シール部材１を取り出す。このようにして、芯金１０の内周側にセンサ２２ｓが樹脂３０で一体化された固定側シール部材１を得る。なお、必要に応じて上記第一工程から第四工程以外の工程を含めるようにしてもよい。 Next, as a second step, the positioning groove 23 of the sensor built-in member 20 is fitted into the notch 11a (end edge) of the cored bar 10, and the cored bar 10 and the sensor built-in member 20 are set in the molding die in this state. . Thereby, the sensor built-in member 20 is positioned in the radial direction with respect to the core metal 10, and the position of the sensor 22 s relative to the core metal 10 does not shift during molding.
Specifically, as shown in FIG. 7, a first jig 50, a second jig 51, and a third jig 52 having an insertion hole into which a connector pin is inserted are used. First, the 1st jig | tool 50 and the 2nd jig | tool 51 are installed in the predetermined position of a metal mold | die, and the core metal 10 to which the sealing member 14 was attached is set. The connector pin 21p of the sensor built-in component 20 is inserted into the insertion hole of the third jig 52, and the positioning groove 23 of the sensor built-in component 20 is fitted into the notch portion 11a of the core metal 10 so that the sensor built-in component is inserted. Keep 20 in the radial direction. After positioning in this manner, as the next third step, molten resin is poured and cured (insert molding). As a fourth step, the fixed-side seal member 1 which is a molded product integrated with the resin 30 is taken out from the mold. In this way, the fixed-side seal member 1 in which the sensor 22s is integrated with the resin 30 on the inner peripheral side of the cored bar 10 is obtained. In addition, you may make it include processes other than the said 1st process to a 4th process as needed.

以上の第一工程から第四工程を含む製造方法とすれば、芯金１０に対するセンサ内蔵部材２０の径方向の位置決めがされた状態となっているため、例えば溶融樹脂を流し込んだ際に、芯金１０に対してセンサ内蔵部品２０がずれない。そのため、芯金１０に対するセンサ２２ｓの径方向における位置ずれのない固定側シール部材１を得ることができ、固定側シール部材１の不良品が発生せず、転がり軸受装置２のセンサの検出精度も維持することができる。なお、本発明は上記の実施形態に限定するものではなく、センサ内蔵部品や各治具、位置決め溝、切り欠き部の位置や形状は適宜変更することができる。   If it is set as the manufacturing method including the above-mentioned 1st process to the 4th process, since it has been in the state where radial positioning of sensor built-in member 20 to cored bar 10 was carried out, for example, when molten resin was poured, a core The sensor built-in component 20 does not shift relative to the gold 10. Therefore, it is possible to obtain the fixed-side seal member 1 with no positional deviation in the radial direction of the sensor 22s with respect to the core metal 10, no defective product of the fixed-side seal member 1 is generated, and the detection accuracy of the sensor of the rolling bearing device 2 is also high. Can be maintained. In addition, this invention is not limited to said embodiment, The position and shape of sensor built-in components, each jig | tool, a positioning groove, and a notch part can be changed suitably.

転がり軸受装置の断面図である。It is sectional drawing of a rolling bearing apparatus. 図１の要部拡大図である。It is a principal part enlarged view of FIG. 転がり軸受装置の正面図である。It is a front view of a rolling bearing device. 芯金の斜視図である。It is a perspective view of a core metal. センサ内蔵部材の斜視図である。It is a perspective view of a sensor built-in member. （ａ）は芯金の断面図であり、（ｂ）はセンサ内蔵部材の側面図である。(A) is sectional drawing of a metal core, (b) is a side view of a sensor built-in member. 製造方法の説明図である。It is explanatory drawing of a manufacturing method. 従来の製造方法の説明図である。It is explanatory drawing of the conventional manufacturing method.

符号の説明Explanation of symbols

１ 固定側シール部材
１０ 芯金
１１ 外周側円筒部
２０ センサ内蔵部材
２１ コネクタ部
２２ センサ
２３ 位置決め溝 DESCRIPTION OF SYMBOLS 1 Fixed side sealing member 10 Core metal 11 Outer peripheral side cylindrical part 20 Sensor built-in member 21 Connector part 22 Sensor 23 Positioning groove

Claims (2)

シール部を備え固定側軌道輪に嵌合される環状の芯金の内周側にセンサを樹脂で一体化する次の工程（ａ）〜（ｄ）を含むことを特徴とする転がり軸受装置用センサ付きシール装置の固定側シール部材の製造方法。
（ａ）前記センサが内蔵されると共に、前記芯金の軸方向外側の端縁に沿って嵌め込み可能な位置決め溝を内側角部近傍に有するＬ字状のセンサ内蔵部材を樹脂成形により得る第一工程
（ｂ）前記芯金の端縁に前記センサ内蔵部材の位置決め溝が嵌め込まれ、前記芯金に対する前記センサ内蔵部材の径方向における位置決めがされた状態で、当該芯金及び当該センサ内蔵部材を成形金型にセットする第二工程
（ｃ）前記成形金型に溶融樹脂を流し込んで硬化させ、前記芯金に前記センサ内蔵部材をインサート成形により一体化する第三工程
（ｄ）前記成形金型から前記樹脂で一体化された成形品を取り出して前記固定側シール部材を得る第四工程 For rolling bearing device characterized in that it includes the following steps (a) to (d) for integrating a sensor with resin on the inner peripheral side of an annular cored bar fitted with a fixed-side raceway having a seal portion A manufacturing method of a fixed side sealing member of a sealing device with a sensor.
(A) together with the sensor is built, an L-shaped sensor incorporated members that have a axially outer end positioning groove which can be fitted along the edge in the vicinity of the inner corner portion of the metal core obtained by resin molding 1st process (b) In the state which the positioning groove | channel of the said sensor built-in member was inserted by the edge of the said metal core, and the positioning in the radial direction of the said sensor built-in member with respect to the said metal core was carried out, the said metal core and the said sensor built-in The second step of setting the member in the molding die (c) The third step of pouring the molten resin into the molding die and curing it, and integrating the sensor built-in member into the core metal by insert molding (d) The molding A fourth step of obtaining the fixed-side seal member by taking out a molded product integrated with the resin from a mold シール部を備え固定側軌道輪に嵌合される環状の芯金と、
この芯金の内周側に位置しているセンサが内蔵されると共に、当該芯金の軸方向外側の端縁に沿って嵌め込まれた位置決め溝を内側角部近傍に有するＬ字状の樹脂成形されたセンサ内蔵部材と、
前記芯金と前記センサ内蔵部材とを一体化すべくインサート成形することで形成された環状の樹脂部材とを備えていることを特徴とする転がり軸受装置用センサ付きシール装置の固定側シール部材。 An annular cored bar that includes a seal portion and is fitted to the fixed-side raceway;
With the sensor which is located on the inner peripheral side of the metal core is incorporated, L-shaped that have a positioning groove fitted along the axially outer edge of the metal core in the vicinity of the inner corner portion A resin molded sensor built-in member;
Stationary seal member of the core metal and the sensor internal member and the rolling bearing device for a sensor-equipped seal device characterized in that it comprises a ring-shaped resin member formed by insert molding so as to integrate the.
JP2006013506A 2006-01-23 2006-01-23 Fixed-side sealing member for sensor-equipped sealing device for rolling bearing device and method for manufacturing the same Expired - Fee Related JP4747853B2 (en)

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