WO2015020198A1 - フランジ付き直動軸受 - Google Patents

フランジ付き直動軸受 Download PDF

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Publication number
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
Authority
WO
WIPO (PCT)
Prior art keywords
flange
linear motion
motion bearing
outer cylinder
linear
Prior art date
Application number
PCT/JP2014/071021
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
一平 橋口
繁樹 進藤
福留　弘人
Original Assignee
ヒーハイスト精工株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ヒーハイスト精工株式会社 filed Critical ヒーハイスト精工株式会社
Priority to CN201480044693.2A priority Critical patent/CN105431646B/zh
Priority to KR1020167001783A priority patent/KR102263558B1/ko
Priority to JP2015530981A priority patent/JP6708409B2/ja
Publication of WO2015020198A1 publication Critical patent/WO2015020198A1/ja
Priority to HK16106393.2A priority patent/HK1218439A1/zh

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Classifications

    • 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
    • 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

Definitions

  • 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.
  • Linear motion 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • a mold corresponding to each flange shape or attachment position is required.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • an object of the present invention is to provide a linear motion bearing using a flanged outer cylinder that can be produced industrially advantageously.
  • 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.
  • 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.
  • 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 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
  • 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
  • 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.
  • jointing means such as a nail and a nail insertion hole.
  • the bonding strength is increased.
  • 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.
  • FIG. 1 The perspective view of the structural example of the linear motion bearing with a flange of this invention, a bottom view, and a side view are shown.
  • the side sectional drawing of the linear motion bearing with a flange shown in FIG. 1 is shown.
  • the perspective view, bottom view, and side view of another structural example of the linear motion bearing with a flange of this invention are shown.
  • the perspective view, bottom view, and side view of another structural example of the linear motion bearing with a flange of this invention are shown.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the outer cylinder is formed of, for example, a metal material typified by steel (eg, stainless steel).
  • steel eg, stainless steel
  • the outer cylinder can be formed of a ceramic material.
  • the cylindrical rolling element cage is made of, for example, a metal material or a resin material.
  • the resin material include polyacetal resin, polyphenylene sulfide (PPS) resin, polyamide resin, and polyether ether ketone (PEEK) resin.
  • 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).
  • the rolling element is made of, for example, a metal material typified by steel (eg, stainless steel).
  • steel eg, stainless steel
  • the rolling element can be formed of a ceramic material.
  • rolling elements examples include a sphere (ball) and a roller (a columnar body having a circular cross section perpendicular to the central axis).
  • 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.
  • a retaining ring sewritable ring
  • other methods can be used instead of the above-described method of arranging the retaining ring.
  • the ribbed flange can be formed from a known resin material.
  • 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.
  • thermoplastic resins examples include polyacetal resins, polyphenylene sulfide (PPS) resins, polyamide resins, and polyether ether ketone (PEEK) resins.
  • 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
  • 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.
  • a thermosetting resin material (monomer composition) that is a liquid itself, and a thermoplastic resin material in a molten state are generally used.
  • 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.
  • the roughening process may be given instead of the groove
  • 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.
  • 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. ).
  • 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. ).

Landscapes

  • 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)
PCT/JP2014/071021 2013-08-08 2014-08-08 フランジ付き直動軸受 WO2015020198A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201480044693.2A CN105431646B (zh) 2013-08-08 2014-08-08 带凸缘直线运动轴承
KR1020167001783A KR102263558B1 (ko) 2013-08-08 2014-08-08 플랜지가 부착된 직동 베어링
JP2015530981A JP6708409B2 (ja) 2013-08-08 2014-08-08 フランジ付き直動軸受
HK16106393.2A HK1218439A1 (zh) 2013-08-08 2016-06-06 帶凸緣直線運動軸承

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013165371 2013-08-08
JP2013-165371 2013-08-08

Publications (1)

Publication Number Publication Date
WO2015020198A1 true WO2015020198A1 (ja) 2015-02-12

Family

ID=52461522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/071021 WO2015020198A1 (ja) 2013-08-08 2014-08-08 フランジ付き直動軸受

Country Status (5)

Country Link
JP (1) JP6708409B2 (ko)
KR (1) KR102263558B1 (ko)
HK (1) HK1218439A1 (ko)
TW (1) TWI611115B (ko)
WO (1) WO2015020198A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102189531B1 (ko) * 2019-08-29 2020-12-11 박순곤 플랜지 일체형 리니어 베어링용 인서트 사출 금형

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH022525U (ko) * 1988-06-16 1990-01-09
JPH0322119U (ko) * 1989-07-17 1991-03-06
JPH07113410A (ja) * 1993-07-29 1995-05-02 Ntn Corp 簡易ナット
JP2000240750A (ja) * 1999-02-19 2000-09-05 Ntn Corp カップリング及びこれを用いた移動テーブルユニット
JP2004263792A (ja) * 2003-03-03 2004-09-24 Koyo Seiko Co Ltd 歯車装置およびボールねじ装置
JP2012132555A (ja) * 2010-11-30 2012-07-12 Nsk Ltd ボールねじ

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2894275B2 (ja) 1996-04-25 1999-05-24 竹内精工株式会社 リニアボールベアリング取付け用フランジ及びフランジ付リニアボールベアリングの作成方法
JPS5861940U (ja) * 1981-10-21 1983-04-26 オイレス工業株式会社 複筒形シヨツクアブソ−バ−のロツドガイド軸受体
JPS61240598A (ja) * 1985-04-17 1986-10-25 片山チエン株式会社 プラスチツク製機器構成部材
TW447657U (en) * 2000-12-29 2001-07-21 Power Perfect Co Ltd Improved linear bearing structure
JP4114543B2 (ja) * 2003-05-27 2008-07-09 株式会社ジェイテクト 電動パワーステアリング装置及び電動パワーステアリング装置の製造方法
JP4450684B2 (ja) * 2004-06-29 2010-04-14 株式会社ブリヂストン タイヤ成型システム
JP4351244B2 (ja) * 2006-11-29 2009-10-28 有限会社浜インターナショナル ローラを用いた移動装置、およびローラの製造方法
JP5022932B2 (ja) * 2008-02-04 2012-09-12 株式会社ミツバ 電動モータ
JP5756304B2 (ja) * 2011-02-22 2015-07-29 ミネベア株式会社 リニアアクチュエータ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH022525U (ko) * 1988-06-16 1990-01-09
JPH0322119U (ko) * 1989-07-17 1991-03-06
JPH07113410A (ja) * 1993-07-29 1995-05-02 Ntn Corp 簡易ナット
JP2000240750A (ja) * 1999-02-19 2000-09-05 Ntn Corp カップリング及びこれを用いた移動テーブルユニット
JP2004263792A (ja) * 2003-03-03 2004-09-24 Koyo Seiko Co Ltd 歯車装置およびボールねじ装置
JP2012132555A (ja) * 2010-11-30 2012-07-12 Nsk Ltd ボールねじ

Also Published As

Publication number Publication date
TW201522800A (zh) 2015-06-16
KR20160040174A (ko) 2016-04-12
TWI611115B (zh) 2018-01-11
JPWO2015020198A1 (ja) 2017-03-02
CN105431646A (zh) 2016-03-23
KR102263558B1 (ko) 2021-06-09
JP6708409B2 (ja) 2020-06-10
HK1218439A1 (zh) 2017-02-17

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