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JP5720596B2 - Linear motion guide device - Google Patents
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JP5720596B2 - Linear motion guide device - Google Patents

Linear motion guide device Download PDF

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JP5720596B2
JP5720596B2 JP2012025324A JP2012025324A JP5720596B2 JP 5720596 B2 JP5720596 B2 JP 5720596B2 JP 2012025324 A JP2012025324 A JP 2012025324A JP 2012025324 A JP2012025324 A JP 2012025324A JP 5720596 B2 JP5720596 B2 JP 5720596B2
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dust
main body
guide rail
counterbore
proof
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JP2013160375A (en
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瞬 森山
瞬 森山
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NSK Ltd
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NSK Ltd
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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
    • F16C29/08—Arrangements for covering or protecting the ways
    • F16C29/082—Arrangements for covering or protecting the ways fixed to the way
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/14—Cap nuts; Nut caps or bolt caps
    • 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
    • F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
    • F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
    • F16C29/0638—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
    • F16C29/0642—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls
    • F16C29/0647—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls with load directions in X-arrangement

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Gasket Seals (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Description

本発明は、例えば製造装置や加工機械、測定機器等の各種機械に用いられる直動案内装置に関する。   The present invention relates to a linear motion guide device used in various machines such as a manufacturing apparatus, a processing machine, and a measuring instrument.

従来より、製造装置や加工機械、測定機器等の各種機械に用いられる直動案内装置の案内レールの上面に設けられたボルト取付穴（座ぐり穴）には、防塵等の目的で、防塵キャップが取り付けられることがあった（特許文献１，２参照）。
特許文献１に開示された直動案内装置は、図１２に示すように、弾性体１０２を側面に設けられた凹部１０３に備えた蓋板（防塵キャップ）１０１を有する。そして、この蓋板１０１は下側に切り溝１０４が設けられている。このような構成をなすことにより、特許文献１に開示された直動案内装置の蓋板１０１は、弾性体１０２や切り溝１０４による弾性力によって、振動や衝撃が発生しても取付位置を保持する効果があるとしている。 Conventionally, the bolt mounting hole (counterbore hole) provided on the upper surface of the guide rail of the linear motion guide device used in various machines such as manufacturing equipment, processing machines, and measuring instruments has a dustproof cap for dustproof purposes. May be attached (see Patent Documents 1 and 2).
As shown in FIG. 12, the linear motion guide device disclosed in Patent Document 1 includes a cover plate (dustproof cap) 101 provided with an elastic body 102 in a recess 103 provided on a side surface. The lid plate 101 is provided with a kerf 104 on the lower side. With this configuration, the cover plate 101 of the linear motion guide device disclosed in Patent Document 1 retains the mounting position even when vibration or impact occurs due to the elastic force of the elastic body 102 or the kerf 104. It is said that there is an effect.

一方、図１３に示すように、特許文献２に開示されたリニアガイド装置のキャップ２０５は、圧入部２５１と脚部２５２と鍔部２５３とで構成される。そして、脚部２５２の形状を六角柱とし、その六角形の寸法を、取り付けのために使用するボルトの頭部の六角穴（六角形の凹部）に挿入される寸法としている。この脚部２５２がボルトの六角穴に挿入されることにより、リニアガイド装置の案内レールに設けた取り付け穴の座繰り部を塞ぐキャップとして、座繰り部内に安定した姿勢で挿入できるとしている。   On the other hand, as shown in FIG. 13, the cap 205 of the linear guide device disclosed in Patent Document 2 includes a press-fit portion 251, a leg portion 252, and a flange portion 253. The shape of the leg portion 252 is a hexagonal column, and the hexagonal dimension is a dimension that is inserted into the hexagonal hole (hexagonal recess) of the head of the bolt used for attachment. By inserting the leg 252 into the hexagonal hole of the bolt, the leg 252 can be inserted into the countersink in a stable posture as a cap that closes the countersink of the mounting hole provided in the guide rail of the linear guide device.

特開２０１０−３８２２６号公報JP 2010-38226 A 特開２００７−２１１９２４号公報JP 2007-211194 A

上述したように、特許文献１に開示された直動案内装置は、蓋板に弾性体（例えばＯリング）を備えることで、蓋板の保持力を向上させ、蓋板が受ける振動や衝撃に対して効果的である。
しかし、特許文献１に開示された直動案内装置は、蓋板１０１の上面と、案内レールに設けられた座ぐり穴の上面とを面一にする構成は一切検討されていない。これはすなわち、蓋板１０１の寸法誤差（経時変化を含む）や取付誤差により、蓋板１０１の上面と上記座ぐり穴の上面との間に段差を生じさせる要因となる可能性がある。その結果、蓋板１０１の上面と上記座ぐり穴の上面との間に段差が発生すると、スライダに取付けられるサイドシールが上記座ぐり穴を通過する際に、上記座ぐり穴又は蓋板１０１と干渉するため、サイドシールが損傷しやすいという問題があった。 As described above, the linear motion guide device disclosed in Patent Document 1 is provided with an elastic body (for example, an O-ring) on the lid plate, thereby improving the holding force of the lid plate, and against vibrations and impacts received by the lid plate. It is effective against this.
However, the linear motion guide device disclosed in Patent Document 1 has not been studied at all for a configuration in which the upper surface of the cover plate 101 is flush with the upper surface of the counterbore provided in the guide rail. In other words, this may cause a step between the upper surface of the cover plate 101 and the upper surface of the counterbore due to a dimensional error (including a change with time) or an attachment error of the cover plate 101. As a result, when a step is generated between the upper surface of the cover plate 101 and the upper surface of the counterbore, the side seal attached to the slider passes through the counterbore or the counterbore or the cover plate 101. There is a problem that the side seal is easily damaged due to interference.

また、蓋板１０１の上面と、上記座ぐり穴の上面とを面一にする構成が一切検討されていないことによって、蓋板１０１の上面が上記座ぐり穴の上面より低いと異物が堆積しやすくなるため、スライダ内への発塵量が多くなるという問題もあった。
一方、特許文献２に開示されたリニアガイド装置のキャップ２０５は、脚部５２をボルト２０６側に向けて、キャップ２０５を案内レール２０１の座繰り部２４１の上に置き、ハンマー等でキャップ２０５の上を叩くことにより、圧入部２５１の外周部の突起が弾性変形し、一部が削り取られながら、座ぐり部２４１内に入る。その際に、ボルト２０６の頭部２６１の凹部２６１ａにキャップ２０５の脚部２５２が挿入されるため、キャップ２０５の圧入部２５１は座繰り部２４１内に、倒れずに安定した姿勢で挿入される。 In addition, since a configuration in which the upper surface of the cover plate 101 and the upper surface of the counterbore hole are flush with each other has not been studied, foreign matter accumulates when the upper surface of the cover plate 101 is lower than the upper surface of the counterbore hole. Since it becomes easy, there also existed a problem that the amount of dust generation in a slider increased.
On the other hand, in the cap 205 of the linear guide device disclosed in Patent Document 2, the cap 205 is placed on the countersink portion 241 of the guide rail 201 with the legs 52 facing the bolt 206 side, and the cap 205 is placed with a hammer or the like. By hitting the top, the protrusion on the outer peripheral portion of the press-fit portion 251 is elastically deformed, and enters the counterbore portion 241 while being partially scraped off. At this time, since the leg portion 252 of the cap 205 is inserted into the concave portion 261a of the head portion 261 of the bolt 206, the press-fitting portion 251 of the cap 205 is inserted into the counterbore portion 241 in a stable posture without falling down. .

また、キャップ２０５の鍔部２５３が、取り付け穴２０４の面取り部２４３にぴったり嵌まるため、キャップ２０５と取り付け穴２０４の面取り部２４３との間に塵埃を堆積させないようにすることができる。
しかし、キャップ２０５と面取り部２４３との間に隙間を生じさせなくても、座ぐり部２４１に圧入された圧入部２５１の上面部と案内レール２０１の上面部とが面一にならずに段差が形成される可能性はあった。そのため、この段差に塵埃が溜まって、スライダ内への発塵量が増加することがあり、スライダ内への発塵量の低減について改善の余地があった。
そこで、本発明は上記の問題点に着目してなされたものであり、その目的は、スライダ内への発塵量を低減する直動案内装置を提供することにある。 Further, since the flange portion 253 of the cap 205 fits into the chamfered portion 243 of the attachment hole 204, it is possible to prevent dust from being accumulated between the cap 205 and the chamfered portion 243 of the attachment hole 204.
However, even if no gap is generated between the cap 205 and the chamfered portion 243, the upper surface portion of the press-fit portion 251 press-fitted into the counterbore portion 241 and the upper surface portion of the guide rail 201 are not flush with each other. There was a possibility that was formed. For this reason, dust accumulates in this step, and the amount of dust generated in the slider may increase, and there is room for improvement in reducing the amount of dust generated in the slider.
Accordingly, the present invention has been made paying attention to the above-mentioned problems, and an object thereof is to provide a linear motion guide device that reduces the amount of dust generated in the slider.

上記目的を達成するための請求項１に係る発明は、軸方向に延びる案内レールと、上記軸方向に沿って相対移動可能に上記案内レールに跨架されたスライダとを備え、上記案内レールがボルトにより機台に固定された直動案内装置であって、
上記案内レールには、上記ボルトが挿通される、上記案内レールの上面から底面に貫通するボルト孔であって、上部には上記ボルトの頭部を係止する座ぐり部が形成され、下部は上記ボルトの本体部が挿通される挿通孔を形成するボルト孔が設けられ、
上面と上記案内レールの上面との間に間隙を有して上記座ぐり部に嵌入される本体部と、該本体部の上記上部に設けられ、上記座ぐり部と同径の防塵シールがそれぞれ剥離可能に複数枚積層された防塵シール積層体とを有する防塵部材が前記座ぐり部に設けられたことを特徴としている。 The invention according to claim 1 for achieving the above object comprises a guide rail extending in the axial direction and a slider straddling the guide rail so as to be relatively movable along the axial direction. A linear motion guide device fixed to the machine base with bolts,
The guide rail is a bolt hole through which the bolt is inserted and penetrates from the top surface to the bottom surface of the guide rail. Bolt holes that form insertion holes through which the main body of the bolts are inserted are provided,
A body portion which is fitted into the pocket portion has a gap between the upper surfaces of the guide rails, provided in the upper portion of the body portion, dustproof seal having the same diameter as the pocket portion, respectively A dust-proof member having a plurality of dust-proof seal laminates laminated in a peelable manner is provided in the counterbore part.

請求項１に係る発明によれば、案内レールの座ぐり部を塞ぐ本体部の上部に複数枚積層された防塵シールを剥がすことで、案内レールの上面と防塵シールの段差を最大でも防塵シールの厚さ以内に小さくすることができる。従って、案内レールの上面と防塵シールの段差部分に異物が堆積することを抑制できるため、スライダ内への発塵量を抑制できる。
また、防塵シールを剥がすことによって、防塵部品として使用されることの多いサイドシールと座ぐり穴との干渉量も最大での防塵シールの厚さ以内に小さくできるため、サイドシールの損傷を抑制することができる。 According to the first aspect of the present invention, a plurality of dustproof seals stacked on the upper portion of the main body that closes the countersunk portion of the guide rail are peeled off, so that the step between the upper surface of the guide rail and the dustproof seal is at most the dustproof seal. It can be reduced within the thickness. Accordingly, foreign matter can be prevented from accumulating on the stepped portion of the upper surface of the guide rail and the dustproof seal, so that the amount of dust generated in the slider can be suppressed.
Also, by removing the dust-proof seal, the amount of interference between the side seal often used as a dust-proof part and the counterbore can be reduced within the maximum thickness of the dust-proof seal, thus suppressing damage to the side seal. be able to.

また、請求項２に係る発明は、請求項１に記載の直動案内装置において、上記本体部が、上記座ぐり部に締まり嵌めで設置されたことを特徴としている。
請求項２に係る発明によれば、上記座ぐり部に上記本体部が強固に固定されるので、防塵シールの剥離による防塵部材の案内レールの上面からの突出量の精度を高くすることができる。従って、防塵部材の上面と案内レールの上面とをより精度よく面一にすることができる。 The invention according to claim 2 is characterized in that, in the linear motion guide device according to claim 1, the main body portion is installed in the counterbore portion with an interference fit.
According to the invention of claim 2, since the main body is firmly fixed to the counterbore, the accuracy of the amount of protrusion of the dustproof member from the upper surface of the guide rail by peeling of the dustproof seal can be increased. . Therefore, the upper surface of the dust-proof member and the upper surface of the guide rail can be more accurately flush with each other.

また、請求項３に係る発明は、請求項１に記載の直動案内装置において、上記座ぐり部の上面側に該座ぐり部よりも大きな内径の溝部が形成され、上記本体部が上記溝部に締まり嵌めで設置されたことを特徴としている。
請求項３に係る発明によれば、溝部に対するプレート状の本体部の接触範囲が狭いため、上記本体部を上記溝部に嵌め込み易くなる。 According to a third aspect of the present invention, in the linear guide device according to the first aspect, a groove portion having an inner diameter larger than the counterbore portion is formed on the upper surface side of the counterbore portion, and the main body portion is the groove portion. It is characterized by being installed with an interference fit.
According to the invention which concerns on Claim 3, since the contact range of the plate-shaped main-body part with respect to a groove part is narrow, it becomes easy to fit the said main-body part in the said groove part.

本発明によれば、防塵部材の一部として、剥離可能な防塵シール積層体を採用したので、防塵シールを剥離することにより、案内レールの上面と防塵部材との段差部分の高さを調整することができる。その結果、案内レールの上面と防塵部材との段差部分における異物の堆積を抑制でき、スライダ内への発塵量を抑制できる。また、案内レールの上面と防塵部材との段差部分の高さを調整することができるため、サイドシールとレール座ぐり穴との干渉量が小さくなり、スライダ稼動時のサイドシールの損傷を抑制できる。
従って、スライダ内への発塵量を低減する直動案内装置を提供することができる。 According to the present invention, the peelable dust-proof seal laminate is adopted as a part of the dust-proof member, so that the height of the step portion between the upper surface of the guide rail and the dust-proof member is adjusted by peeling the dust-proof seal. be able to. As a result, it is possible to suppress the accumulation of foreign matter at the level difference between the upper surface of the guide rail and the dustproof member, and the amount of dust generated in the slider can be suppressed. In addition, since the height of the step between the upper surface of the guide rail and the dust-proof member can be adjusted, the amount of interference between the side seal and the rail counterbore is reduced, and damage to the side seal during slider operation can be suppressed. .
Therefore, it is possible to provide a linear motion guide device that reduces the amount of dust generated in the slider.

本発明に係る直動案内装置の第１の実施形態における構成を示す図であり、（ａ）は右側面図、（ｂ）は正面図、（ｃ）は（ａ）の１ｃ−１ｃ線に沿う断面図である。It is a figure which shows the structure in 1st Embodiment of the linear guide apparatus which concerns on this invention, (a) is a right view, (b) is a front view, (c) is the 1c-1c line of (a). It is sectional drawing which follows. 本発明に係る直動案内装置の第１の実施形態における防塵部材の構成を示す図であり、（ａ）は平面図、（ｂ）は側面図である。It is a figure which shows the structure of the dust-proof member in 1st Embodiment of the linear guide apparatus which concerns on this invention, (a) is a top view, (b) is a side view. 本発明に係る直動案内装置の第１の実施形態における防塵部材の設置方法を示す図であり、（ａ）はボルトによる締着前の断面図、（ｂ）はボルトによる締着後の断面図である。It is a figure which shows the installation method of the dust-proof member in 1st Embodiment of the linear guide apparatus which concerns on this invention, (a) is sectional drawing before the fastening with a volt | bolt, (b) is a cross section after the fastening with a volt | bolt. FIG. 本発明に係る直動案内装置の第１の実施形態における防塵部材の設置方法を示す図であり、（ａ）は本体部の設置前の断面図、（ｂ）は本体部の設置後の断面図である。It is a figure which shows the installation method of the dust-proof member in 1st Embodiment of the linear guide apparatus which concerns on this invention, (a) is sectional drawing before installation of a main-body part, (b) is cross-section after installation of a main-body part. FIG. 本発明に係る直動案内装置の第１の実施形態における防塵部材の設置方法を示す図であり、（ａ）は防塵シールの設置前の断面図、（ｂ）は防塵シールの設置後の断面図である。It is a figure which shows the installation method of the dust-proof member in 1st Embodiment of the linear guide apparatus which concerns on this invention, (a) is sectional drawing before installation of a dust-proof seal, (b) is a cross section after installation of a dust-proof seal. FIG. 本発明に係る直動案内装置の第１の実施形態における防塵部材の設置方法を示す図であり、（ａ）及び（ｂ）は防塵シールの剥離時の断面図、（ｃ）は防塵シールの剥離後の断面図である。It is a figure which shows the installation method of the dust-proof member in 1st Embodiment of the linear motion guide apparatus which concerns on this invention, (a) And (b) is sectional drawing at the time of peeling of a dust-proof seal, (c) is a dust-proof seal. It is sectional drawing after peeling. 本発明に係る直動案内装置の第２の実施形態における座ぐり部の構成を示す断面図である。It is sectional drawing which shows the structure of the spot facing part in 2nd Embodiment of the linear guide apparatus which concerns on this invention. 本発明に係る直動案内装置の第２の実施形態における防塵部材の構成を示す図であり、（ａ）は平面図、（ｂ）は側面図である。It is a figure which shows the structure of the dust-proof member in 2nd Embodiment of the linear guide apparatus which concerns on this invention, (a) is a top view, (b) is a side view. 本発明に係る直動案内装置の第２の実施形態における防塵部材の設置方法を示す図であり、（ａ）は本体部の設置前の断面図、（ｂ）は本体部の設置後の断面図である。It is a figure which shows the installation method of the dust-proof member in 2nd Embodiment of the linear guide apparatus which concerns on this invention, (a) is sectional drawing before installation of a main-body part, (b) is a cross section after installation of a main-body part. FIG. 本発明に係る直動案内装置の第２の実施形態における防塵部材の設置方法を示す図であり、（ａ）は防塵シールの設置前の断面図、（ｂ）は防塵シールの設置後の断面図である。It is a figure which shows the installation method of the dust-proof member in 2nd Embodiment of the linear motion guide apparatus which concerns on this invention, (a) is sectional drawing before installation of a dust-proof seal, (b) is a cross section after installation of a dust-proof seal. FIG. 本発明に係る直動案内装置の第２の実施形態における防塵部材の設置方法を示す図であり、（ａ）及び（ｂ）は防塵シールの剥離時の断面図、（ｃ）は防塵シールの剥離後の断面図である。It is a figure which shows the installation method of the dust-proof member in 2nd Embodiment of the linear guide apparatus which concerns on this invention, (a) And (b) is sectional drawing at the time of peeling of a dust-proof seal, (c) is a dust-proof seal. It is sectional drawing after peeling. 従来の直動案内装置の構成を示す断面図である。It is sectional drawing which shows the structure of the conventional linear motion guide apparatus. 従来の直動案内装置の構成を示す断面図である。It is sectional drawing which shows the structure of the conventional linear motion guide apparatus.

以下、本発明に係る直動案内装置の実施形態について図面を参照して説明する。
（第１の実施形態）
＜構成＞
図１は、本発明に係る直動案内装置の第１の実施形態における構成を示す図であり、（ａ）は右側面図、（ｂ）は正面図、（ｃ）は（ａ）の１ｃ−１ｃ線に沿う断面図である。また、図２は、本発明に係る直動案内装置の第１の実施形態における防塵部材の構成を示す図であり、（ａ）は平面図、（ｂ）は側面図である。
図１（ａ），（ｂ）に示すように、直動案内装置１は、軸方向に延びる案内レール１０と、該案内レール１０上に上記軸方向に相対移動可能に跨架されたスライダ２０とを備える。
また、図１に示すように、案内レール１０には、その上面１０ａから底面１０ｂに貫通するボルト孔１２が上記軸方向に所定間隔で複数形成されている。 Embodiments of a linear guide apparatus according to the present invention will be described below with reference to the drawings.
(First embodiment)
<Configuration>
FIG. 1 is a diagram showing a configuration of a linear motion guide device according to a first embodiment of the present invention, where (a) is a right side view, (b) is a front view, and (c) is 1c of (a). It is sectional drawing which follows the -1c line. 2A and 2B are diagrams showing the configuration of the dust-proof member in the first embodiment of the linear guide device according to the present invention, wherein FIG. 2A is a plan view and FIG. 2B is a side view.
As shown in FIGS. 1 (a) and 1 (b), a linear guide apparatus 1 includes a guide rail 10 extending in the axial direction and a slider 20 straddling the guide rail 10 so as to be relatively movable in the axial direction. With.
As shown in FIG. 1, the guide rail 10 is formed with a plurality of bolt holes 12 penetrating from the upper surface 10a to the bottom surface 10b at predetermined intervals in the axial direction.

ボルト孔１２には、図１（ｃ）に示すように、内面１２ａに段差が座ぐり部１３として形成されている。すなわち、ボルト孔１２は、底面１０ｂ側の開口径よりも上面１０ａ側の開口径が大となるように形成されている。具体的には、ボルト孔１２の上部（案内レール１０の上面１０ａ側）には、ボルト６０の頭部６１を係止する座ぐり部１３が形成される。一方、ボルト孔１２の下部（案内レール１０の底面１０ｂ側）は、ボルト６０の本体部６２が挿通される挿通孔１４をなしている。
一方、機台５０には、ボルト孔１２とほぼ同じ間隔で複数の取付穴５１が列設されている（図３参照）。 As shown in FIG. 1C, the bolt hole 12 is formed with a step as a counterbore portion 13 on the inner surface 12 a. That is, the bolt hole 12 is formed so that the opening diameter on the top surface 10a side is larger than the opening diameter on the bottom surface 10b side. Specifically, a counterbore portion 13 that locks the head portion 61 of the bolt 60 is formed in the upper portion of the bolt hole 12 (on the upper surface 10a side of the guide rail 10). On the other hand, the lower portion of the bolt hole 12 (the bottom surface 10b side of the guide rail 10) forms an insertion hole 14 through which the main body 62 of the bolt 60 is inserted.
On the other hand, a plurality of mounting holes 51 are arranged in the machine base 50 at substantially the same intervals as the bolt holes 12 (see FIG. 3).

［防塵部材］
次に、図２（ａ），（ｂ）に示すように、本実施形態の直動案内装置１の防塵部材３０は、本体部３１と防塵シール積層体３２とを有する。本体部３１は円板形状をなしている。ここで、本体部３１の高さ（厚さ）寸法は座ぐり部１３の深さ寸法よりも小さく設定される。また、本体部３１の外径は、座ぐり部１３の内径よりも僅かに大きいことが好ましい。本体部３１の外径が座ぐり部１３の内径よりも僅かに大きいことによって、座ぐり部１３に本体部３１が締まり嵌めされて強固に固定される。 [Dust-proof material]
Next, as shown in FIGS. 2A and 2B, the dust-proof member 30 of the linear guide device 1 of this embodiment includes a main body 31 and a dust-proof seal laminate 32. The main body 31 has a disk shape. Here, the height (thickness) dimension of the main body 31 is set smaller than the depth dimension of the spot facing 13. The outer diameter of the main body 31 is preferably slightly larger than the inner diameter of the counterbore part 13. When the outer diameter of the main body 31 is slightly larger than the inner diameter of the counterbore 13, the main body 31 is tightly fitted to the counterbore 13 and firmly fixed.

防塵シール積層体３２は、座ぐり部１３の内径とほぼ同じ外径の薄い円形の防塵シール３２ａが複数積層されてなる。積層された各防塵シール３２ａは、接着層を有して互いに剥離可能に接着されている。ここで、各防塵シール３２ａ同士の接着力は、防塵シール積層体３２の本体部３１に対する接着力よりも弱く設定される。   The dust-proof seal laminate 32 is formed by laminating a plurality of thin circular dust-proof seals 32 a having substantially the same outer diameter as the inner diameter of the spot facing portion 13. Each of the stacked dustproof seals 32a has an adhesive layer and is detachably bonded to each other. Here, the adhesive force between the dustproof seals 32 a is set to be weaker than the adhesive force of the dustproof seal laminate 32 to the main body 31.

＜防塵部材の設置方法＞
図３は、本発明に係る直動案内装置の第１の実施形態における防塵部材の設置方法を示す図であり、（ａ）はボルトによる締着前の断面図、（ｂ）はボルトによる締着後の断面図である。また、図４は、本発明に係る直動案内装置の第１の実施形態における防塵部材の設置方法を示す図であり、（ａ）は本体部の設置前の断面図、（ｂ）は本体部の設置後の断面図である。また、図５は、本発明に係る直動案内装置の第１の実施形態における防塵部材の設置方法を示す図であり、（ａ）は防塵シールの設置前の断面図、（ｂ）は防塵シールの設置後の断面図である。また、図６は、本発明に係る直動案内装置の第１の実施形態における防塵部材の設置方法を示す図であり、（ａ）及び（ｂ）は防塵シールの剥離時の断面図、（ｃ）は防塵シールの剥離後の断面図である。 <Installation method of dustproof member>
3A and 3B are diagrams showing a method of installing a dust-proof member in the first embodiment of the linear motion guide device according to the present invention. FIG. 3A is a cross-sectional view before fastening with a bolt, and FIG. It is sectional drawing after wearing. 4A and 4B are diagrams showing a method of installing the dustproof member in the first embodiment of the linear motion guide device according to the present invention, wherein FIG. 4A is a cross-sectional view before the main body is installed, and FIG. 4B is the main body. It is sectional drawing after installation of a part. FIG. 5 is a view showing a method of installing a dustproof member in the first embodiment of the linear motion guiding device according to the present invention, wherein (a) is a cross-sectional view before the dustproof seal is installed, and (b) is dustproof. It is sectional drawing after installation of a seal | sticker. FIG. 6 is a view showing a method of installing the dustproof member in the first embodiment of the linear guide device according to the present invention, (a) and (b) are sectional views when the dustproof seal is peeled off, c) is a cross-sectional view of the dust-proof seal after peeling.

まず、本実施形態における案内レール１０の機台５０への固定は、図３（ａ）、（ｂ）に示すように、ボルト孔１２にボルト６０を挿通し、頭部６１を治具によって回転させて、底部６１ａが座ぐり部１３の底面１３ａに係止するまで、機台５０の取付穴５１にボルト６０の本体部６２を螺合させることによってなされる。
その後、図４（ａ），（ｂ）に示すように、座ぐり部１３に防塵部材３０の本体部３１を嵌め込む。このとき、本体部３１は、案内レール１０の上面１０ａよりも所定距離の間隙を有するように（案内レール１０の上面１０ａよりも本体部３１の上面３１ａが凹むように）座ぐり部１３の内部に設置される。また、本体部３１はボルト６０の頭部６１に接していても間隙が形成されてもよい。本体部３１とボルト６０の頭部６１との間に間隙が形成されている方が座ぐり部１３における本体部３１の厚さ方向の位置を制御することができ、結果として後述する防塵シール積層体３２の高さ寸法を制御しやすい。ここで、上述したように、本体部３１の外径寸法Ｄｃが座ぐり部１３の内径寸法Ｄｚよりも僅かに大きい場合（Ｄｃ>Ｄｚ）、本体部３１は座ぐり部１３に締まり嵌めされる。また、本体部３１の高さ（厚さ）寸法は座ぐり部１３の深さ寸法よりも小さいため、座ぐり部１３に嵌め込まれた本体部３１の上面３１ａは、案内レール１０の上面１０ａよりも低い位置に固定される。 First, as shown in FIGS. 3A and 3B, the guide rail 10 is fixed to the machine base 50 in this embodiment by inserting the bolt 60 into the bolt hole 12 and rotating the head 61 with a jig. The main body 62 of the bolt 60 is screwed into the mounting hole 51 of the machine base 50 until the bottom 61a is locked to the bottom surface 13a of the counterbore 13.
Thereafter, as shown in FIGS. 4A and 4B, the main body portion 31 of the dust-proof member 30 is fitted into the counterbore portion 13. At this time, the main body 31 has a predetermined distance from the upper surface 10a of the guide rail 10 (so that the upper surface 31a of the main body 31 is recessed from the upper surface 10a of the guide rail 10). Installed. Further, the main body 31 may be in contact with the head 61 of the bolt 60 or a gap may be formed. The position where the gap is formed between the main body 31 and the head 61 of the bolt 60 can control the position of the main body 31 in the counterbore 13 in the thickness direction. It is easy to control the height dimension of the body 32. Here, as described above, when the outer diameter Dc of the main body 31 is slightly larger than the inner diameter Dz of the counterbore 13 (Dc> Dz), the main body 31 is tightly fitted to the counterbore 13. . Further, since the height (thickness) dimension of the main body part 31 is smaller than the depth dimension of the counterbore part 13, the upper surface 31 a of the main body part 31 fitted into the counterbore part 13 is higher than the upper surface 10 a of the guide rail 10. Is also fixed at a low position.

その後、図５（ａ），（ｂ）に示すように、本体部３１の上面３１ａ上に防塵シール積層体３２が貼付けられる。ここで、防塵シール積層体３２を本体部３１の上面３１ａ上に貼り付ける際には、図５（ｂ）に示すように、防塵シール積層体３２の上面（最上部に位置する防塵シール３２ａの上面）が、案内レール１０の上面１０ａよりも寸法ｄだけ突出するように貼り付けられる。この寸法ｄは、防塵シール３２ａよりも大きく設定される。   Thereafter, as shown in FIGS. 5A and 5B, the dust-proof seal laminate 32 is attached on the upper surface 31 a of the main body 31. Here, when the dust-proof seal laminate 32 is affixed onto the upper surface 31a of the main body 31, as shown in FIG. 5B, the upper surface of the dust-proof seal laminate 32 (the dust-proof seal 32a positioned at the top) The upper surface) is pasted so as to protrude from the upper surface 10a of the guide rail 10 by a dimension d. This dimension d is set larger than the dustproof seal 32a.

その後、図６（ａ）〜（ｃ）に示すように、寸法ｄをできるだけ「０」に近づけるために、防塵シール積層体３２から防塵シール３２ａを１枚ずつ剥離する。このように、防塵シール３２ａを剥離していくことで、図６（ｃ）に示すように、案内レール１０の上面１０ａと防塵部材３０との段差を最大でも防塵シール３２ａの厚さ以内に小さくすることができる。   Thereafter, as shown in FIGS. 6A to 6C, the dust-proof seals 32 a are peeled from the dust-proof seal laminate 32 one by one in order to make the dimension d as close to “0” as possible. In this way, by peeling off the dust-proof seal 32a, as shown in FIG. 6C, the step between the upper surface 10a of the guide rail 10 and the dust-proof member 30 is reduced within the thickness of the dust-proof seal 32a at the maximum. can do.

以上説明したように、本実施形態の直動案内装置によれば、本体部３１上に複数枚貼付けられた防塵シール３２ａを剥離することで、案内レール１０の上面１０ａと防塵部材３０の上面（最上部に位置する防塵シール３２ａの上面）との段差を最大でも防塵シール３２ａの厚さ以内に調整することができる。その結果、案内レールの上面と防塵部材との段差部分における異物の堆積を抑制でき、スライダ内への発塵量を抑制できる。また、案内レールの上面と防塵部材との段差部分の高さを調整することができるため、サイドシールとレール座ぐり穴との干渉量が小さくなり、スライダ稼動時のサイドシールの損傷を抑制できる。特に、本体部３１の外径を座ぐり部１３の内径よりも僅かに大きくすることで、防塵シール３２ａの剥離による防塵部材３０の案内レール１０の上面１０ａからの突出量の精度を高くすることができる。従って、防塵部材３０の上面と案内レール１０の上面１０ａとをより精度よく面一にすることができる。   As explained above, according to the linear motion guide device of the present embodiment, the upper surface 10a of the guide rail 10 and the upper surface of the dust-proof member 30 (by removing a plurality of dust-proof seals 32a attached on the main body 31 ( The level difference from the uppermost surface of the dust-proof seal 32a positioned at the top can be adjusted within the thickness of the dust-proof seal 32a at the maximum. As a result, it is possible to suppress the accumulation of foreign matter at the level difference between the upper surface of the guide rail and the dust-proof member, and the amount of dust generated in the slider can be suppressed. In addition, since the height of the step between the upper surface of the guide rail and the dust-proof member can be adjusted, the amount of interference between the side seal and the rail counterbore is reduced, and damage to the side seal during slider operation can be suppressed. . In particular, by making the outer diameter of the main body part 31 slightly larger than the inner diameter of the counterbore part 13, the accuracy of the protrusion amount of the dustproof member 30 from the upper surface 10a of the guide rail 10 due to the peeling of the dustproof seal 32a is increased. Can do. Therefore, the upper surface of the dust-proof member 30 and the upper surface 10a of the guide rail 10 can be more accurately flush with each other.

さらに、案内レール１０の上面１０ａから下方へ押し込んで本体部３１を固定することによって、特別な治具を必要としないため、組み付けが容易である。また、防塵部材３０は、案内レール１０の上面１０ａから突出しなければいいため、本体部３１の高さ（厚さ）を小さめに設計することで、寸法誤差の影響を許容することができる。一方、防塵シール３２ａは、本体部３１上に貼付けられたとき（剥離前）に、防塵シール３２ａの上面が案内レール１０の上面１０ａから突出していればよいため、防塵シール３２ａの高さ（厚さ）を大きめに設計することで、剥離後の寸法誤差の影響を許容できる。
従って、スライダ内への発塵量を低減する直動案内装置を提供することができる。 Furthermore, by pushing downward from the upper surface 10a of the guide rail 10 and fixing the main body portion 31, no special jig is required, so that assembly is easy. Moreover, since the dust-proof member 30 does not have to protrude from the upper surface 10a of the guide rail 10, the influence of dimensional errors can be allowed by designing the main body 31 to have a small height (thickness). On the other hand, the dust-proof seal 32a only has to protrude from the top surface 10a of the guide rail 10 when the dust-proof seal 32a is stuck on the main body 31 (before peeling). By designing a larger width), the influence of dimensional errors after peeling can be allowed.
Therefore, it is possible to provide a linear motion guide device that reduces the amount of dust generated in the slider.

（第２の実施形態）
＜構成＞
図７は、本発明に係る直動案内装置の第２の実施形態における座ぐり部の構成を示す断面図である。また、図８は、本発明に係る直動案内装置の第２の実施形態における防塵部材の構成を示す図であり、（ａ）は平面図、（ｂ）は側面図である。本実施形態は、座ぐり部の形状及び防塵部材の本体部の形状を異ならせた以外は、上述の実施形態と同様の構成であるので、上述の実施形態と同様の構成については説明を省略する。 (Second Embodiment)
<Configuration>
FIG. 7 is a cross-sectional view showing a configuration of a spot facing portion in the second embodiment of the linear guide apparatus according to the present invention. FIGS. 8A and 8B are diagrams showing the configuration of the dust-proof member in the second embodiment of the linear guide device according to the present invention, wherein FIG. 8A is a plan view and FIG. 8B is a side view. The present embodiment has the same configuration as the above-described embodiment except that the shape of the spot facing portion and the shape of the main body portion of the dust-proof member are different. Therefore, the description of the same configuration as the above-described embodiment is omitted. To do.

図７に示すように、本実施形態の直動案内装置１の座ぐり部１３には、案内レール１０の上面１０ａ側の開口径がさらに大となる溝部１５が形成されている。この溝部１５も座ぐり部１３と同様に円形に開口している。すなわち、本実施形態におけるボルト孔１２の開口径は、挿通孔１４と、座ぐり部１３と、溝部１５とで３段階に開口径が大きくなるように形成されている。また、溝部１５の深さ寸法は、座ぐり部１３の深さ寸法よりも小さく設定される。   As shown in FIG. 7, the counterbore part 13 of the linear guide apparatus 1 according to the present embodiment is formed with a groove part 15 in which the opening diameter on the upper surface 10a side of the guide rail 10 is further increased. The groove portion 15 also has a circular opening like the counterbore portion 13. That is, the opening diameter of the bolt hole 12 in the present embodiment is formed so that the opening diameter is increased in three stages by the insertion hole 14, the spot facing portion 13, and the groove portion 15. Further, the depth dimension of the groove portion 15 is set smaller than the depth dimension of the counterbore portion 13.

［防塵部材］
次に、図８（ａ），（ｂ）に示すように、本実施形態の直動案内装置１の防塵部材３０は、本体部３１と防塵シール積層体３２とを有する。本体部３１は円板形状をなしている。ここで、本体部３１の高さ（厚さ）寸法は溝部１５の深さ寸法よりも小さく設定される。また、本体部３１の外径は、溝部１５の内径よりも僅かに大きいことが好ましい。本体部３１の外径が溝部１５の内径よりも僅かに大きいことによって、溝部１５に本体部３１が締まり嵌めされて強固に固定される。
防塵シール積層体３２は、溝部１５の内径とほぼ同じ外径の薄い円形の防塵シール３２ａが複数積層されてなる。積層された各防塵シール３２ａは、接着層を有して互いに剥離可能に接着されている。ここで、各防塵シール３２ａ同士の接着力は、防塵シール積層体３２の本体部３１に対する接着力よりも弱く設定される。 [Dust-proof material]
Next, as shown in FIGS. 8A and 8B, the dust-proof member 30 of the linear guide device 1 of the present embodiment includes a main body 31 and a dust-proof seal laminate 32. The main body 31 has a disk shape. Here, the height (thickness) dimension of the main body 31 is set smaller than the depth dimension of the groove 15. Further, the outer diameter of the main body 31 is preferably slightly larger than the inner diameter of the groove 15. When the outer diameter of the main body 31 is slightly larger than the inner diameter of the groove 15, the main body 31 is tightly fitted in the groove 15 and is firmly fixed.
The dust-proof seal laminate 32 is formed by laminating a plurality of thin circular dust-proof seals 32 a having an outer diameter substantially the same as the inner diameter of the groove portion 15. Each of the stacked dustproof seals 32a has an adhesive layer and is detachably bonded to each other. Here, the adhesive force between the dustproof seals 32 a is set to be weaker than the adhesive force of the dustproof seal laminate 32 to the main body 31.

＜防塵部材の設置方法＞
図９は、本発明に係る直動案内装置の第２の実施形態における防塵部材の設置方法を示す図であり、（ａ）は本体部の設置前の断面図、（ｂ）は本体部の設置後の断面図である。また、図１０は、本発明に係る直動案内装置の第２の実施形態における防塵部材の設置方法を示す図であり、（ａ）は防塵シールの設置前の断面図、（ｂ）は防塵シールの設置後の断面図である。また、図１１は、本発明に係る直動案内装置の第２の実施形態における防塵部材の設置方法を示す図であり、（ａ）及び（ｂ）は防塵シールの剥離時の断面図、（ｃ）は防塵シールの剥離後の断面図である。 <Installation method of dustproof member>
FIG. 9 is a view showing a method of installing a dustproof member in the second embodiment of the linear guide device according to the present invention, (a) is a sectional view before installation of the main body, and (b) is a view of the main body. It is sectional drawing after installation. FIG. 10 is a view showing a method of installing a dustproof member in the second embodiment of the linear guide device according to the present invention, (a) is a sectional view before the dustproof seal is installed, and (b) is a dustproof. It is sectional drawing after installation of a seal | sticker. Moreover, FIG. 11 is a figure which shows the installation method of the dust-proof member in 2nd Embodiment of the linear guide apparatus based on this invention, (a) And (b) is sectional drawing at the time of peeling of a dust-proof seal, ( c) is a cross-sectional view of the dust-proof seal after peeling.

まず、本実施形態における案内レール１０の機台５０への固定は、上述の図３（ａ）、（ｂ）を参照した説明のとおりである。
次に、図９（ａ），（ｂ）に示すように、溝部１５に防塵部材３０の本体部３１を嵌め込む。このとき、本体部３１は、案内レール１０の上面１０ａよりも所定距離の間隙を有するように（案内レール１０の上面１０ａよりも本体部３１の上面３１ａが凹むように）溝部１５の内部に設置される。また、本体部３１はボルト６０の頭部６１に接していても間隙が形成されてもよい。本体部３１とボルト６０の頭部６１との間に間隙が形成されている方が溝部１５における本体部３１の厚さ方向の位置を制御することができ、結果として後述する防塵シール積層体３２の高さ寸法を制御しやすい。ここで、本体部３１の外径寸法Ｄｐが溝部１５の内径寸法Ｄｇよりも僅かに大きい場合（Ｄｃ>Ｄｇ）、本体部３１は溝部１５に締まり嵌めされる。また、本体部３１の高さ（厚さ）寸法は溝部１５の深さ寸法よりも小さいため、溝部１５に嵌め込まれた本体部３１の上面３１ａは、案内レール１０の上面１０ａよりも低い位置に固定される。 First, the fixing of the guide rail 10 to the machine base 50 in the present embodiment is as described with reference to FIGS. 3 (a) and 3 (b).
Next, as shown in FIGS. 9A and 9B, the main body 31 of the dust-proof member 30 is fitted into the groove 15. At this time, the main body 31 is installed inside the groove 15 so as to have a predetermined distance from the upper surface 10a of the guide rail 10 (so that the upper surface 31a of the main body 31 is recessed from the upper surface 10a of the guide rail 10). Is done. Further, the main body 31 may be in contact with the head 61 of the bolt 60 or a gap may be formed. The position where the gap is formed between the main body 31 and the head 61 of the bolt 60 can control the position of the main body 31 in the thickness direction in the groove 15, and as a result, a dustproof seal laminate 32 described later. Easy to control the height dimension. Here, when the outer diameter Dp of the main body 31 is slightly larger than the inner diameter Dg of the groove 15 (Dc> Dg), the main body 31 is tightly fitted into the groove 15. Further, since the height (thickness) dimension of the main body 31 is smaller than the depth dimension of the groove 15, the upper surface 31 a of the main body 31 fitted in the groove 15 is positioned lower than the upper surface 10 a of the guide rail 10. Fixed.

その後、図１０（ａ），（ｂ）に示すように、本体部３１の上面３１ａ上に防塵シール積層体３２が貼付けられる。ここで、防塵シール積層体３２を本体部３１の上面３１ａ上に貼り付ける際には、図１０（ｂ）に示すように、防塵シール積層体３２の上面（最上部に位置する防塵シール３２ａの上面）が、案内レール１０の上面１０ａよりも寸法ｄだけ突出するように貼り付けられる。この寸法ｄは、防塵シール３２ａよりも大きく設定される。   Thereafter, as shown in FIGS. 10A and 10B, the dust-proof seal laminate 32 is pasted on the upper surface 31 a of the main body 31. Here, when the dust-proof seal laminate 32 is affixed onto the upper surface 31a of the main body 31, as shown in FIG. 10B, the upper surface of the dust-proof seal laminate 32 (the dust-proof seal 32a located at the top) The upper surface) is pasted so as to protrude from the upper surface 10a of the guide rail 10 by a dimension d. This dimension d is set larger than the dustproof seal 32a.

その後、図１１（ａ）〜（ｃ）に示すように、寸法ｄをできるだけ「０」に近づけるために、防塵シール積層体３２から防塵シール３２ａを１枚ずつ剥離する。このように、防塵シール３２ａを剥離していくことで、図１１（ｃ）に示すように、案内レール１０の上面１０ａと防塵部材３０との段差を最大でも防塵シール３２ａの厚さ以内に小さくすることができる。   Thereafter, as shown in FIGS. 11A to 11C, the dust-proof seals 32 a are peeled from the dust-proof seal laminate 32 one by one in order to make the dimension d as close to “0” as possible. In this way, by peeling off the dust-proof seal 32a, as shown in FIG. 11C, the step between the upper surface 10a of the guide rail 10 and the dust-proof member 30 is reduced within the thickness of the dust-proof seal 32a at the maximum. can do.

以上説明したように、本実施形態の直動案内装置によれば、本体部３１上に複数枚貼付けられた防塵シール３２ａを剥離することで、案内レール１０の上面１０ａと防塵部材３０の上面（最上部に位置する防塵シール３２ａの上面）との段差を最大でも防塵シール３２ａの厚さ以内に調整することができる。その結果、案内レールの上面と防塵部材との段差部分における異物の堆積を抑制でき、スライダ内への発塵量を抑制できる。また、案内レールの上面と防塵部材との段差部分の高さを調整することができるため、サイドシールとレール座ぐり穴との干渉量が小さくなり、スライダ稼動時のサイドシールの損傷を抑制できる。特に、本体部３１の外径を溝部１５の内径よりも僅かに大きくすることで、防塵シール３２ａの剥離による防塵部材３０の案内レール１０の上面１０ａからの突出量の精度を高くすることができる。従って、防塵部材３０の上面と案内レール１０の上面１０ａとをより精度よく面一にすることができる。   As explained above, according to the linear motion guide device of the present embodiment, the upper surface 10a of the guide rail 10 and the upper surface of the dust-proof member 30 (by removing a plurality of dust-proof seals 32a attached on the main body 31 ( The level difference from the uppermost surface of the dust-proof seal 32a positioned at the top can be adjusted within the thickness of the dust-proof seal 32a at the maximum. As a result, it is possible to suppress the accumulation of foreign matter at the level difference between the upper surface of the guide rail and the dust-proof member, and the amount of dust generated in the slider can be suppressed. In addition, since the height of the step between the upper surface of the guide rail and the dust-proof member can be adjusted, the amount of interference between the side seal and the rail counterbore is reduced, and damage to the side seal during slider operation can be suppressed. . In particular, by making the outer diameter of the main body 31 slightly larger than the inner diameter of the groove 15, the accuracy of the amount of protrusion of the dustproof member 30 from the upper surface 10a of the guide rail 10 due to the peeling of the dustproof seal 32a can be increased. . Therefore, the upper surface of the dust-proof member 30 and the upper surface 10a of the guide rail 10 can be more accurately flush with each other.

さらに、案内レール１０の上面１０ａから下方へ押し込んで本体部３１を固定することによって、特別な治具を必要としないため、組み付けが容易である。また、防塵部材３０は、案内レール１０の上面１０ａから突出しなければいいため、本体部３１の高さ（厚さ）を小さめに設計することで、寸法誤差の影響を許容することができる。一方、防塵シール３２ａは、本体部３１上に貼付けられたとき（剥離前）に、防塵シール３２ａの上面が案内レール１０の上面１０ａから突出していればよいため、防塵シール３２ａの高さ（厚さ）を大きめに設計することで、剥離後の寸法誤差の影響を許容できる。   Furthermore, by pushing downward from the upper surface 10a of the guide rail 10 and fixing the main body portion 31, no special jig is required, so that assembly is easy. Moreover, since the dust-proof member 30 does not have to protrude from the upper surface 10a of the guide rail 10, the influence of dimensional errors can be allowed by designing the main body 31 to have a small height (thickness). On the other hand, the dust-proof seal 32a only has to protrude from the top surface 10a of the guide rail 10 when the dust-proof seal 32a is stuck on the main body 31 (before peeling). By designing a larger width), the influence of dimensional errors after peeling can be allowed.

従って、スライダ内への発塵量を低減する直動案内装置を提供することができる。
加えて、本実施形態の直動案内装置は、第１の実施形態の直動案内装置と比較して、溝部１５の深さ寸法が座ぐり部１３の深さ寸法よりも小さく、本体部３１の厚さ寸法も小さくなっているため、溝部１５に対するプレート状の本体部３１の接触範囲が狭くなり、結果として本体部３１を溝部１５に嵌め込み易くなる。
以上、本発明の実施の形態について説明してきたが、本発明はこれに限定されずに、種々の変更、改良を行うことができる。 Therefore, it is possible to provide a linear motion guide device that reduces the amount of dust generated in the slider.
In addition, the linear guide device of the present embodiment has a depth dimension of the groove portion 15 smaller than that of the counterbore portion 13 as compared with the linear guide device of the first embodiment, and the main body portion 31. Therefore, the contact range of the plate-like main body 31 with respect to the groove 15 is narrowed, and as a result, the main body 31 can be easily fitted into the groove 15.
As mentioned above, although embodiment of this invention has been described, this invention is not limited to this, A various change and improvement can be performed.

１ 直動案内装置
１０ 案内レール
１０ａ 上面
１０ｂ 底面
１２ ボルト孔
１３ 座ぐり部
１４ 挿通孔
１５ 溝部
２０ スライダ
３０ 防塵部材
３１ 本体部
３２ 防塵シール積層体
３２ａ 防塵シール DESCRIPTION OF SYMBOLS 1 Linear motion guide apparatus 10 Guide rail 10a Upper surface 10b Bottom surface 12 Bolt hole 13 Counterbore part 14 Insertion hole 15 Groove part 20 Slider 30 Dust-proof member 31 Main-body part 32 Dust-proof seal laminated body 32a Dust-proof seal

Claims (3)

軸方向に延びる案内レールと、前記軸方向に沿って相対移動可能に前記案内レールに跨架されたスライダとを備え、前記案内レールがボルトにより機台に固定された直動案内装置であって、
前記案内レールには、前記ボルトが挿通される、前記案内レールの上面から底面に貫通するボルト孔であって、上部には前記ボルトの頭部を係止する座ぐり部が形成され、下部は前記ボルトの本体部が挿通される挿通孔を形成するボルト孔が設けられ、
上面と前記案内レールの上面との間に間隙を有して前記座ぐり部に嵌入される本体部と、該本体部の前記上部に設けられ、前記座ぐり部と同径の防塵シールがそれぞれ剥離可能に複数枚積層された防塵シール積層体とを有する防塵部材が前記座ぐり部に設けられたことを特徴とする直動案内装置。 A linear motion guide device comprising: a guide rail extending in the axial direction; and a slider straddling the guide rail so as to be relatively movable along the axial direction, wherein the guide rail is fixed to a machine base by a bolt. ,
The guide rail is a bolt hole through which the bolt is inserted and penetrates from the upper surface to the bottom surface of the guide rail, and a counterbore portion for locking the head of the bolt is formed at the upper portion, and the lower portion is Bolt holes that form insertion holes through which the main body of the bolts are inserted are provided,
A body portion which is fitted into the pocket portion with a gap between the upper surface and the upper surface of the guide rail, provided on the upper portion of the body portion, dustproof seal having the same diameter as the pocket portion, respectively A linear motion guide device, wherein a dustproof member having a plurality of dustproof seal laminates that are peelably laminated is provided on the counterbore part. 前記本体部が、前記座ぐり部に締まり嵌めで設置されたことを特徴とする請求項１に記載の直動案内装置。   The linear motion guide device according to claim 1, wherein the main body portion is installed in the counterbore portion with an interference fit. 前記座ぐり部の上面側に該座ぐり部よりも大きな内径の溝部が形成され、前記本体部が前記溝部に締まり嵌めで設置されたことを特徴とする請求項１に記載の直動案内装置。   The linear motion guide device according to claim 1, wherein a groove portion having an inner diameter larger than that of the counterbore portion is formed on an upper surface side of the counterbore portion, and the main body portion is installed in the groove portion by an interference fit. .
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