JP2009002470A - Linear motion guide mechanism - Google Patents

Linear motion guide mechanism Download PDF

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JP2009002470A
JP2009002470A JP2007165707A JP2007165707A JP2009002470A JP 2009002470 A JP2009002470 A JP 2009002470A JP 2007165707 A JP2007165707 A JP 2007165707A JP 2007165707 A JP2007165707 A JP 2007165707A JP 2009002470 A JP2009002470 A JP 2009002470A
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rail
frame
linear motion
guide mechanism
rails
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JP4966107B2 (en
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Yasuharu Odachi
泰治 大立
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Yushin Precision Equipment Co Ltd
Yushin Seiki KK
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Yushin Precision Equipment Co Ltd
Yushin Seiki KK
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/045—Ball or roller bearings having rolling elements journaled in one of the moving parts
    • 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
    • F16C29/005—Guide rails or tracks for a linear bearing, i.e. adapted for movement of a carriage or bearing body there along
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F16C33/61—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings formed by wires
    • 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
    • F16C43/00—Assembling bearings

Abstract

<P>PROBLEM TO BE SOLVED: To provide a linear motion guide mechanism improving accuracy by fitting and fixing a rail ensuring high straight accuracy to a frame by simple adjusting work, and saving on cost. <P>SOLUTION: The linear motion guide mechanism comprises a rolling element 1, and a guide device 9 composed of: the rail 6 rolling or rotating while contacting with the rolling element 1; and the frame 8 fitted and fixed with the rail 6. The guide device 9 is composed of one frame 8, and two short rails 6a, 6b divided in a longitudinal direction to continue and fitted and fixed in a groove 8b of the frame 8. The two short rails 6a, 6b are fitted and fixed in the groove 8b of the frame 8 positioned while positioning center axes C on one straight line. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、直動案内機構に関する。   The present invention relates to a linear motion guide mechanism.

図３は、直動案内機構の従来例を示す縦断正面図でありこの従来の技術は、たとえば特許文献１に記載されている。直動案内機構は、転動体１と、この転動体１が接触して転動または回転するレール６および該レール６を嵌合固定したフレーム８とからなる案内装置９とを備える。   FIG. 3 is a longitudinal front view showing a conventional example of a linear motion guide mechanism. This conventional technique is described in, for example, Patent Document 1. The linear motion guide mechanism includes a rolling element 1, a guide device 9 including a rail 6 that rolls or rotates when the rolling element 1 contacts and a frame 8 that is fitted and fixed to the rail 6.

転動体１は、たとえば深溝玉軸受タイプのラジアルベアリングからなり、外輪１ａと内輪１ｂおよび両者１ａ，１ｂの間に配置される複数の玉１ｃを備える。転動体１は、内輪１ｂに嵌挿したカラー２にボルトからなるベアリング軸３を挿通し、ベアリング軸３のねじ部３ｂをベースプレート４のねじ孔４ａに螺着することで、ボルトヘッド３ａとベースプレート４とで挟まれるワッシャ５およびカラー２のフランジ部２ａにより内輪１ｂを挟着してベースプレート４に取付けられる。これにより、複数の玉１ｃは、外輪１ａと内輪１ｂの間で転動し、外輪１ａは、ベアリング軸３の軸線を回転中心として内輪１ｂのまわりを回転する。   The rolling element 1 is formed of, for example, a deep groove ball bearing type radial bearing, and includes an outer ring 1a, an inner ring 1b, and a plurality of balls 1c arranged between the both 1a and 1b. The rolling element 1 is inserted into the collar 2 fitted in the inner ring 1b with a bearing shaft 3 made of bolts, and the threaded portion 3b of the bearing shaft 3 is screwed into the screw hole 4a of the base plate 4, thereby the bolt head 3a and the base plate. The inner ring 1b is clamped and attached to the base plate 4 by the washer 5 and the flange portion 2a of the collar 2. Thereby, the plurality of balls 1c roll between the outer ring 1a and the inner ring 1b, and the outer ring 1a rotates around the inner ring 1b with the axis of the bearing shaft 3 as the rotation center.

転動体１の外輪１ａには、その外周部にレール６が嵌まる環状溝７が設けられ、レール６はフレーム８に取付けられる。レール６は硬度の高い焼き入れ鋼からなり、フレーム８は硬度の低いアルミニウム系合金の押し出し形材によって構成されているので、断面円形のレール６をフレーム８の取付面８ａに形成した断面略半円形または断面凹形の溝８ｂに嵌入したのち、特許文献２に記載のカシメ治具を用いて、前記溝８ｂの両側縁部をレール６方向に押圧して塑性変形させることにより、レール６の周面を挟着して、レール６をフレーム８の取付面８ａにカシメ止めしている。   The outer ring 1 a of the rolling element 1 is provided with an annular groove 7 into which the rail 6 is fitted on the outer periphery thereof, and the rail 6 is attached to the frame 8. Since the rail 6 is made of hardened hard steel and the frame 8 is made of an extruded aluminum alloy having a low hardness, the rail 6 having a circular cross section is formed on the mounting surface 8a of the frame 8 and has a substantially half cross section. After fitting into the circular or concave groove 8b, the side edges of the groove 8b are pressed in the direction of the rail 6 and plastically deformed by using the caulking jig described in Patent Document 2. The rail 6 is crimped to the mounting surface 8a of the frame 8 by sandwiching the peripheral surface.

前記構成の直動案内機構によれば、ベースプレート４に前後方向（紙面方向と反紙面方向）の駆動力を作用させると、転動体１はレール６に沿って正方向あるいは逆方向に転動し、ベースプレート４は前後方向に進退する。逆に、ベースプレート４を固定し、フレーム８に前後方向の駆動力を作用させることによって、転動体１を定位置で回転させ、フレーム８をベースプレート４の下位で前後方向に進退させることもできる。   According to the linear motion guide mechanism configured as described above, when a driving force in the front-rear direction (paper surface direction and anti-paper surface direction) is applied to the base plate 4, the rolling element 1 rolls forward or backward along the rail 6. The base plate 4 moves back and forth in the front-rear direction. Conversely, by fixing the base plate 4 and applying a driving force in the front-rear direction to the frame 8, the rolling element 1 can be rotated at a fixed position, and the frame 8 can be advanced and retracted in the front-rear direction below the base plate 4.

実開平７−４３４９８号公報Japanese Utility Model Publication No. 7-43498 実開平７−４３３６２号公報Japanese Utility Model Publication No. 7-43362

ところで、フレーム８の長手方向寸法が長尺（たとえば５ｍ超）の場合、このフレーム８の取付面８ａに長尺の溝８ｂが形成される。そして、この長尺の溝８ｂに長尺のレール６を嵌合し、前記カシメ止めによって長尺のレール６を溝８ｂに固定することが望ましいとされている。ところが、レール６は硬度の高い焼き入れ鋼からなるので、熱処理時の熱歪により真直度が損なわれやすい。このことは、レール６の長さが増大するにつれて顕著になる傾向を有する。つまり、レール６の長さが増大するにつれて、単位長さ当たりの真直率が低下する。   By the way, when the longitudinal dimension of the frame 8 is long (for example, more than 5 m), a long groove 8b is formed on the mounting surface 8a of the frame 8. Then, it is desirable to fit the long rail 6 into the long groove 8b and fix the long rail 6 to the groove 8b by the caulking. However, since the rail 6 is made of hardened steel having high hardness, the straightness is likely to be lost due to thermal strain during heat treatment. This tends to become more pronounced as the length of the rail 6 increases. That is, as the length of the rail 6 increases, the straightness rate per unit length decreases.

一方、前記長尺の溝８ｂは、フレーム８の押出し成形時に同時に形成されるか、あるいはフレーム８の押出し成形後において機械加工によって形成されるので真直度が備わっている。すなわち、溝８ｂは、その長短にかかわらず真直度を有して容易に形成できる。   On the other hand, the long groove 8b is formed simultaneously with the extrusion of the frame 8, or is formed by machining after the extrusion of the frame 8, and thus has a straightness. That is, the groove 8b can be easily formed with straightness regardless of its length.

真直度を備えた長尺の溝８ｂにレール６を嵌合するには、嵌合の前段でレール６を真直に手直しすることが要求される。しかし、単位長さ当たりの真直率が低い長尺のレール６の手直しは困難を極め、手直し作業に長時間を費やすにもかかわらず、高い真直精度を確保し難い。そのため、直動案内機構の精度低下を招くおそれを有している。また、手直し作業に長時間を費やすことは、直動案内機構のコストアップにつながる。   In order to fit the rail 6 into the long groove 8b having straightness, it is required to straighten the rail 6 straight before the fitting. However, reworking of the long rail 6 having a low straightness rate per unit length is extremely difficult, and it is difficult to ensure high straightness accuracy despite spending a long time for reworking work. Therefore, there is a possibility that the accuracy of the linear motion guide mechanism is reduced. Also, spending a long time on the reworking work leads to an increase in the cost of the linear motion guide mechanism.

本発明は、このような問題を解決するものであって、その目的とするところは、簡単な手直し作業によって高い真直精度が確保されたレールをフレームに嵌合固定することで、精度が向上するとともに、コストダウンを図れる直動案内機構を提供することにある。   The present invention solves such a problem, and an object of the present invention is to improve accuracy by fitting and fixing a rail, which ensures high straightness accuracy by a simple rework operation, to the frame. A further object is to provide a linear motion guide mechanism that can reduce costs.

前記目的を達成するために、本発明に係る直動案内機構は、転動体と、この転動体が接触して転動または回転するレールおよび該レールを嵌合固定したフレームとからなる案内装置と、を備えた直動案内機構において、
前記案内装置は、１つのフレームと、長手方向に分割して連続させてフレームの溝に嵌合固定した複数のレールと、からなることを特徴としている。 In order to achieve the above object, a linear motion guide mechanism according to the present invention comprises a rolling element, a rail that rolls or rotates in contact with the rolling element, and a frame that is fitted and fixed to the rail. In a linear motion guide mechanism provided with
The guide device is characterized by comprising one frame and a plurality of rails that are divided in the longitudinal direction and continuous and fitted and fixed in grooves of the frame.

これによれば、フレームの溝には、長手方向に分割した複数のレールが連続して嵌合固定されているので、分割された各レールの長さは短くなる。硬度の高い焼き入れ鋼からなるレールは、その長さが増大するにつれて、単位長さ当たりの真直率が低下するものの、長手方向に分割して長さを短くした前記各レールでは、熱処理時の熱歪によって発生する単位長さ当たりの真直率が長尺のレールよりも高い。そのため、簡単な手直し作業によって高い真直精度のレールが確保でき、このレールが溝に嵌合固定されることによって、直動案内機構の精度を向上させることができる。   According to this, since the plurality of rails divided in the longitudinal direction are continuously fitted and fixed in the groove of the frame, the length of each divided rail is shortened. Although the straightness per unit length of the rail made of hardened steel with high hardness decreases as the length increases, the rails divided in the longitudinal direction and shortened in the length of the rails during the heat treatment Straightness per unit length generated by thermal strain is higher than that of long rails. Therefore, a high straight accuracy rail can be secured by a simple rework operation, and the accuracy of the linear motion guide mechanism can be improved by fitting and fixing the rail in the groove.

また、前記複数のレールは、各レールの中心軸線を一直線上に位置決めして前記フレームの溝に嵌合固定される。これによると、各レール同士の間に介在する合わせ面（継ぎ目）が段差のない状態になるので、継ぎ目衝撃を転動体に作用させることなく、また継ぎ目音を発生させることなく、円滑、かつ静粛な転動体の転動または回転を確保できる。つまり、直動案内機構を円滑、かつ静粛に作動させることができる。   The plurality of rails are fitted and fixed in the grooves of the frame by positioning the central axis of each rail on a straight line. According to this, since the mating surfaces (joints) interposed between the rails are in a state of no step, the joint impact is not applied to the rolling elements, and the joint sound is not generated, and it is smooth and quiet. The rolling or rotation of the rolling element can be ensured. That is, the linear motion guide mechanism can be operated smoothly and silently.

本発明によれば、長さを短くしたレールは、単位長さ当たりの真直率が高いことによって、簡単な手直し作業で高い真直精度のレールが確保でき、このレールが溝に嵌合固定されることによって、直動案内機構の精度を向上させることができる。また、手直し作業が簡単で、手直し作業時間が短縮されることにより、直動案内機構のコストダウンを図れる。   According to the present invention, the rail having a reduced length has a high straightness rate per unit length, so that a highly straight rail can be secured by a simple rework operation, and the rail is fitted and fixed in the groove. As a result, the accuracy of the linear motion guide mechanism can be improved. Moreover, the cost of the linear motion guide mechanism can be reduced by making the repair work simple and reducing the repair work time.

以下、本発明の好ましい実施形態を図面にしたがって説明する。図１は、本発明の一実施形態を示す縦断正面図、図２は、案内装置の右側面図である。なお、図３で説明した従来例と同一もしくは相当部分には、同一符号を付して重複する構造および作用の説明は省略する。   Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal front view showing an embodiment of the present invention, and FIG. 2 is a right side view of a guide device. The same or corresponding parts as those in the conventional example described with reference to FIG.

図１，図２において、案内装置９は、長手方向寸法が長尺（たとえば５ｍ超）の１つのフレーム８と、長手方向の寸法を短くした（たとえば２ｍ）一方のレール（図２の左側のレール）６ａおよび他方のレール（図２の右側のレール）６ｂを、合わせ面（継ぎ目）１０を介して連続させたレール６とからなり、各レール６ａ，６ｂは、フレーム８の全長にわたって形成されている溝８ｂに、前記特許文献２に記載のカシメ治具を用いて、フレーム８の取付面８ａにカシメ止めされている。なお、本実施形態におけるフレーム８の取付面８ａは、図１のように、溝８ｂの幅方向両端部を基点として、左右両側へ緩やかに下がる傾斜面としている。   1 and 2, a guide device 9 includes a frame 8 having a long longitudinal dimension (for example, more than 5 m) and a rail (on the left side in FIG. 2) having a shortened longitudinal dimension (for example, 2 m). The rail 6a and the other rail (the right rail in FIG. 2) 6b are connected to each other through a mating surface (seam) 10. The rails 6a and 6b are formed over the entire length of the frame 8. The groove 8b is secured to the mounting surface 8a of the frame 8 by using the crimping jig described in Patent Document 2. As shown in FIG. 1, the mounting surface 8a of the frame 8 in the present embodiment is an inclined surface that gently falls to both the left and right sides starting from both ends in the width direction of the groove 8b.

長手方向の寸法が短い各レール６ａ，６ｂは、熱処理時の熱歪によって発生する単位長さ当たりの真直率が長尺のレール６よりも高いので、簡単な手直し作業によって高い真直精度のレール６ａ，６ｂが確保でき、このレール６ａ，６ｂが溝８ｂに嵌合固定されることによって、直動案内機構の精度を向上させることができる。また、手直し作業が簡単で、手直し作業時間が短縮されることにより、直動案内機構のコストダウンを図れる。   Each of the rails 6a and 6b having a short length in the longitudinal direction has a straightness rate per unit length generated by thermal strain during heat treatment, which is higher than that of the long rail 6. Therefore, the rail 6a having high straightness accuracy by a simple reworking operation. 6b can be secured, and the rails 6a and 6b are fitted and fixed in the grooves 8b, whereby the accuracy of the linear motion guide mechanism can be improved. Moreover, the cost of the linear motion guide mechanism can be reduced by making the repair work simple and reducing the repair work time.

前記各レール６ａ，６ｂは、それぞれの中心軸線Ｃを一直線上に位置決めして、フレーム８の溝８ｂに嵌合固定することで、各レール６ａ，６ｂ同士の間に介在する合わせ面（継ぎ目）１０が段差のない状態になるので、継ぎ目衝撃を転動体１に作用させることなく、また継ぎ目音を発生させることなく、円滑、かつ静粛な転動体１の転動または回転を確保できる。つまり、直動案内機構を円滑、かつ静粛に作動させることができる。   Each of the rails 6a and 6b has its center axis C positioned on a straight line, and is fitted and fixed in the groove 8b of the frame 8, so that a mating surface (seam) interposed between the rails 6a and 6b. Since 10 becomes a state without a step, smooth and quiet rolling or rotation of the rolling element 1 can be ensured without causing a joint impact to act on the rolling element 1 and without generating a joint sound. That is, the linear motion guide mechanism can be operated smoothly and silently.

つぎに、各レール６ａ，６ｂそれぞれの中心軸線Ｃを一直線上に位置決めし、かつ段差のない合わせ面（継ぎ目）１０を介して連続させた状態で、レール６をフレーム８の溝８ｂに前記特許文献２に記載のカシメ治具を用いて嵌合固定する手順について説明する。   Next, the rail 6 is placed in the groove 8b of the frame 8 in a state where the central axes C of the rails 6a and 6b are aligned on a straight line and are connected via a mating surface (seam) 10 having no step. A procedure for fitting and fixing using the caulking jig described in Document 2 will be described.

まず、簡単な手直し作業によって真直状態が確保された２本の短寸レール６ａ，６ｂを、溝８ｂの長手方向の所定位置に合わせ面１０を介して連続させて嵌合し、図示していない位置決め治具や木ハンマなどを用いて、各レール６ａ，６ｂの中心軸線Ｃを溝８ｂ内で一直線上に位置決めする。しかるのち、図示していない固定具（たとえば周知のクランパー）によって、２本のレール６ａ，６ｂを溝８ｂ内に強固に固定する。   First, two short rails 6a and 6b, which are kept straight by a simple reworking operation, are continuously fitted to a predetermined position in the longitudinal direction of the groove 8b via a mating surface 10 and are not shown. The center axis C of each rail 6a, 6b is positioned in a straight line in the groove 8b by using a positioning jig, a wooden hammer or the like. Thereafter, the two rails 6a and 6b are firmly fixed in the groove 8b by a fixing tool (not shown) (for example, a known clamper).

つぎに、フレーム８の取付面８ａにおける各レール６ａ，６ｂの長手方向の両端部および該両端部間の所定位置に近い複数部位を、図１における左右両側から、たがねおよび片手ハンマー（ともに図示せず）などを用いて各レール６ａ，６ｂ方向に打圧し、打圧されて塑性変形した前記複数部位により各レール６ａ，６ｂを左右両側から押圧して仮り止めするとともに、たがねによる打圧痕１１を取付面８ａに形成する。なお、図２には、右側の取付面８ａにおける各レール６ａ，６ｂの長手方向の両端部に近い部位にのみ打圧痕１１を形成した状態が示されている。   Next, both the longitudinal ends of the rails 6a and 6b on the mounting surface 8a of the frame 8 and a plurality of portions close to a predetermined position between the both ends are separated from both the left and right sides in FIG. The rails 6a and 6b are pressed from both the left and right sides by the plurality of portions that are pressed and plastically deformed by being pressed in the directions of the rails 6a and 6b using a chisel. The punching mark 11 is formed on the mounting surface 8a. FIG. 2 shows a state in which the punching marks 11 are formed only on the right mounting surface 8a near the ends of the rails 6a and 6b in the longitudinal direction.

各レール６ａ，６ｂの仮り止めが完了したならば、前記図示していない固定具を除去し、ついで前記特許文献２に記載のカシメ治具を用いて、前記溝８ｂの両側縁部をレール６方向に押圧して塑性変形させることにより、レール６の周面を挟着して、レール６をフレーム８の取付面８ａにカシメ止めする。   When the rails 6a and 6b are temporarily fixed, the fixing tool (not shown) is removed, and then the side edges of the groove 8b are attached to the rails 6 using the caulking jig described in Patent Document 2. By pressing in the direction and plastically deforming, the peripheral surface of the rail 6 is clamped, and the rail 6 is caulked to the mounting surface 8 a of the frame 8.

このように、各レール６ａ，６ｂは、その中心軸線Ｃを溝８ｂ内で一直線上に位置決めして嵌合固定されている状態は、打圧痕１１を目視することによって確認できる。   Thus, the rails 6a and 6b can be confirmed by visually observing the striking impression mark 11 so that the center axis C thereof is positioned and fixed in a straight line in the groove 8b.

前記実施形態では、２本の短寸レール６ａ，６ｂの中心軸線Ｃを一直線上に位置決めして、フレーム８の溝８ｂに嵌合固定しているが、３本以上の短寸レールの中心軸線Ｃを一直線上に位置決めした案内装置９であってもよい。また、本実施形態におけるフレーム８の取付面８ａは、溝８ｂの幅方向両端部を基点として、左右両側へ緩やかに下がる傾斜面としているが、溝８ｂの幅方向両端部を基点として、水平に延出する取付面８ａであってもよい。   In the above embodiment, the central axes C of the two short rails 6a and 6b are positioned on a straight line and fitted and fixed to the groove 8b of the frame 8, but the central axes of three or more short rails are used. It may be a guide device 9 in which C is positioned on a straight line. In addition, the mounting surface 8a of the frame 8 in the present embodiment is an inclined surface that gently descends to the left and right sides starting from both ends in the width direction of the groove 8b, but horizontally from both ends in the width direction of the groove 8b. The mounting surface 8a may be extended.

本発明の一実施形態を示す縦断正面図である。It is a vertical front view which shows one Embodiment of this invention. 案内装置の右側面図である。It is a right view of a guide apparatus. 従来例の縦断正面図である。It is a vertical front view of a conventional example.

符号の説明Explanation of symbols

１ 転動体
６ レール
６ａ 一方のレール
６ｂ 他方のレール
８ フレーム
８ｂ フレームの溝
９ 案内装置
Ｃ レールの中心軸線 DESCRIPTION OF SYMBOLS 1 Rolling body 6 Rail 6a One rail 6b The other rail 8 Frame 8b Frame groove 9 Guide device C Center axis of rail

Claims (2)

転動体と、この転動体が接触して転動または回転するレールおよび該レールを嵌合固定したフレームとからなる案内装置と、を備えた直動案内機構において、
前記案内装置は、１つのフレームと、長手方向に分割して連続させてフレームの溝に嵌合固定した複数のレールと、からなることを特徴とする直動案内機構。 In a linear motion guide mechanism comprising a rolling element, and a guide device comprising a rail that rolls or rotates in contact with the rolling element and a frame in which the rail is fitted and fixed,
The guide device is composed of one frame and a plurality of rails which are divided into a longitudinal direction and are continuously fitted and fixed in grooves of the frame. 請求項１に記載の直動案内機構において、
前記複数のレールは、各レールの中心軸線を一直線上に位置決めして前記フレームの溝に嵌合固定されていることを特徴とする直動案内機構。 The linear motion guide mechanism according to claim 1,
The linear motion guide mechanism, wherein the plurality of rails are fixedly fitted into grooves of the frame by positioning the central axes of the rails in a straight line.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110465557A (en) * 2019-08-02 2019-11-19 江苏江顺精密机电设备有限公司 A kind of three dragger traction track structures

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6411427U (en) * 1987-07-13 1989-01-20
JPH0814254A (en) * 1994-07-01 1996-01-16 Smc Corp Linear guide and its manufacture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6411427U (en) * 1987-07-13 1989-01-20
JPH0814254A (en) * 1994-07-01 1996-01-16 Smc Corp Linear guide and its manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110465557A (en) * 2019-08-02 2019-11-19 江苏江顺精密机电设备有限公司 A kind of three dragger traction track structures

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