JP6340324B2 - Sliding guide device - Google Patents
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- JP6340324B2 JP6340324B2 JP2015005728A JP2015005728A JP6340324B2 JP 6340324 B2 JP6340324 B2 JP 6340324B2 JP 2015005728 A JP2015005728 A JP 2015005728A JP 2015005728 A JP2015005728 A JP 2015005728A JP 6340324 B2 JP6340324 B2 JP 6340324B2
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この発明は、工作機械に使用される案内装置における移動体の摺動面と基台の案内面との間に異物が侵入することを阻止するすべり案内装置に関するものである。 The present invention relates to a slide guide device that prevents foreign matter from entering between a sliding surface of a moving body and a guide surface of a base in a guide device used in a machine tool.
すべり案内装置は、基台の案内面と移動体の摺動面との間に切粉などの異物が侵入すると、潤滑不良となり焼き付きや工作機械の故障の原因となる。これを防止するために潤滑油が定期的に案内面と摺動面との間に供給され異物を案内面外方へ押し流している。案内面外方へ流出した潤滑油は、潤滑油タンクに回収される。その際、切削加工を行う際に使用された切削油と潤滑油とを分離して回収することが困難であるため、潤滑油と切削油とが混在して回収される。その後、切削油と潤滑油とが分離されて、切削油は再利用され潤滑油は廃棄される。 In the sliding guide device, when foreign matter such as chips enters between the guide surface of the base and the sliding surface of the moving body, lubrication is poor and seizure or a failure of the machine tool is caused. In order to prevent this, lubricating oil is periodically supplied between the guide surface and the sliding surface, and the foreign matter is forced out of the guide surface. The lubricating oil that has flowed out of the guide surface is collected in the lubricating oil tank. At that time, since it is difficult to separate and collect the cutting oil and the lubricating oil used when cutting, the lubricating oil and the cutting oil are collected together. Thereafter, the cutting oil and the lubricating oil are separated, the cutting oil is reused, and the lubricating oil is discarded.
潤滑油を廃棄すると、新たな潤滑油の購入費の増大によるコスト高を招来し、不経済であった。また、切削油の頻繁な交換は、産業廃棄物(廃油)の増大を招くという問題も誘発している。 Discarding the lubricating oil resulted in high costs due to an increase in the purchase cost of new lubricating oil, which was uneconomical. In addition, frequent replacement of the cutting oil also induces a problem of increasing industrial waste (waste oil).
そこで、従来のすべり案内装置として、平坦な案内面を備えた基台と、案内面と摺接する摺動面を有し基台に対して相対移動する移動体とを備え、案内面に、その周縁に沿う長辺と短辺とを備えた枠溝形状の潤滑油回収溝が形成されているものが知られている。(下記の特許文献1参照)。
Therefore, as a conventional slide guide device, a base having a flat guide surface and a moving body having a sliding surface slidingly contacting the guide surface and moving relative to the base, the guide surface includes 2. Description of the Related Art A frame groove-shaped lubricating oil recovery groove having a long side and a short side along the periphery is known. (See
上記のようなすべり案内装置は、異物が混在した潤滑油を案内装置から回収した後、濾過器により異物と潤滑油とを分離するため、案内面と摺動面との間の側方からの異物侵入に関して考慮する必要がなかった。しかし、被削材の種類の増加により、すべり案内装置の側方から摺動面と案内面との間に異物が侵入する量が増してきたため、すべり案内装置の異物の侵入防止について考慮する必要が増してきた。 The slip guide device as described above collects lubricating oil mixed with foreign matter from the guide device, and then separates the foreign matter from the lubricating oil with a filter. Therefore, the slip guide device from the side between the guide surface and the sliding surface is used. There was no need to consider the entry of foreign objects. However, since the amount of foreign matter entering between the sliding surface and the guide surface has increased from the side of the slide guide device due to the increase in the types of work materials, it is necessary to consider the prevention of foreign matter intrusion of the slide guide device. Has increased.
この発明の目的は、移動体の摺動面と基台の案内面との間から流出した潤滑油を回収でき、すべり案内装置の側方から移動体の摺動面と基台の案内面との間へ異物が侵入することを阻止するすべり案内装置を提供することにある。 The object of the present invention is to collect lubricating oil that has flowed out between the sliding surface of the moving body and the guide surface of the base, and from the side of the slide guide device, the sliding surface of the moving body and the guide surface of the base It is an object of the present invention to provide a slide guide device that prevents foreign matter from entering between.
この発明によるすべり案内装置は、基台の案内面上を移動体の摺動面が潤滑油を介して摺動させられるすべり案内装置であって、移動体に、案内面と摺動面との間隙の側方を覆うように基台の側面に沿って下方に延びる側方スカート部が形成されており、側方スカート部は、基台の側面と向かい合う内面部分に、上方に開口した桶上の潤滑油貯留凹所を有しており、基台の側面上縁部に、案内面と摺動面との間隙の側方から流出した潤滑油を潤滑油貯留凹所に案内するように下方にのびかつ潤滑油貯留凹所を底部で連通する内外2つの室に区画する垂下壁部が形成されており、側方スカート部における潤滑油貯留凹所の両端部分と、同部分を貫通させられている垂下壁部との間が、接触シールによってシールされており、側方スカート部に、潤滑油貯留凹所の潤滑油を排出する潤滑油排出路が形成されており、潤滑油貯留凹所内の潤滑油の油面レベルは、排出制御手段によって、垂下壁部の先端よりも上方位置に保持されるようになっていることを特徴とするものである。 A slide guide device according to the present invention is a slide guide device in which a sliding surface of a moving body is slid on a guide surface of a base via lubricating oil, and the moving body includes a guide surface and a sliding surface. A side skirt portion extending downward along the side surface of the base is formed so as to cover the side of the gap, and the side skirt portion is an upper surface that opens upward on an inner surface portion facing the side surface of the base. The upper part of the side surface of the base has a lower lubricating oil storage recess, so that the lubricating oil flowing out from the side of the gap between the guide surface and the sliding surface is guided to the lubricating oil storage recess. A hanging wall portion is formed to divide the lubricating oil storage recess into two chambers, the inner and outer chambers communicating with each other at the bottom, and the both ends of the lubricating oil storage recess in the side skirt portion can be passed through the same portion. The space between the hanging wall is sealed with a contact seal, and the side skirt is A lubricating oil discharge passage for discharging lubricating oil in the lubricating oil storage recess is formed, and the level of the lubricating oil in the lubricating oil storage recess is set to a position higher than the tip of the drooping wall by the discharge control means. It is characterized by being held.
側方スカート部は、移動体の幅方向端部に設けられて案内面の左右外方へ流出した潤滑油を受ける外側壁と、外側壁の下端から外側壁に対して直角をなすように基部の幅方向内方にのびた底壁と、底壁の先端から垂直上向きにのびた内側壁とにより形成される、上方に開口した桶状の潤滑油貯留凹所を有する。 The side skirt portion is provided at an end portion in the width direction of the moving body and receives the lubricating oil that has flowed out to the left and right of the guide surface, and a base portion that is perpendicular to the outer wall from the lower end of the outer wall. And an inner wall extending vertically upward from the tip of the bottom wall and having a bowl-like lubricating oil storage recess opened upward.
側方スカート部の内側壁と基台の側面との間に、移動体の移動に伴う内側壁と基台側面との摩擦を防止するための間隙を設けてもよい。 You may provide the clearance gap between the inner wall of a side skirt part, and the side surface of a base for preventing the friction with the inner wall and base side accompanying the movement of a moving body.
この発明によると、移動体に案内面と摺動面との間隙の側方を覆うように側方スカート部が設けられているので、案内面と摺動面との間への異物の侵入を阻止することができる。 According to this invention, since the side skirt portion is provided on the movable body so as to cover the side of the gap between the guide surface and the sliding surface, foreign matter can be prevented from entering between the guide surface and the sliding surface. Can be blocked.
この発明において、潤滑油排出部が、潤滑油貯留凹所における垂下壁部の先端よりも上方位置に開口させられた流入口と、側方スカート部の表面における流入口よりも下方位置に開口させられた流出口とを有するオーバーフロー孔よりなり、このオーバーフロー孔によって排出制御手段が構成されていることが好ましい。 In this invention, the lubricating oil discharge part is opened at a position lower than the inflow opening on the surface of the side skirt part and the inflow opening opened to a position above the tip of the hanging wall part in the lubricating oil storage recess. It is preferable that the discharge control means is constituted by an overflow hole having an outlet formed therein.
このようにすると、潤滑油貯留凹所に潤滑油が一定量貯留されると、潤滑油が潤滑油貯留凹所内からすべり案内装置の外方に流出させられるので、流出口に潤滑油用回収タンクを接続すると潤滑油を回収することができる。 In this way, when a certain amount of lubricating oil is stored in the lubricating oil storage recess, the lubricating oil flows out of the sliding guide device from the inside of the lubricating oil storage recess. When the is connected, the lubricating oil can be recovered.
この発明のすべり案内装置によると、基台の案内面と移動体の摺動面との間への異物の侵入を側方スカート部によって阻止することができる。さらに、側方スカート部の下方から側方スカート部の内側壁と基台側面との間の間隙に異物が侵入しても、潤滑油貯留凹所内に潤滑油が溜まっていると、貯留された潤滑油によって案内面と摺動面との間への異物侵入が阻止される。また、案内面と摺動面との間から流出した潤滑油は、垂下壁部に案内されて排出制御手段により回収されるため、切削作業時に使用されるクーラント液(切削油)を排出制御手段や垂下壁部と異なる回収装置によって回収すると、クーラント液と潤滑油との混在を抑えることができ、クーラント液の劣化や寿命の低下を抑制することができる。 According to the slip guide device of the present invention, the side skirt portion can prevent foreign matter from entering between the guide surface of the base and the sliding surface of the movable body. Furthermore, even if foreign matter enters the gap between the inner side wall of the side skirt portion and the side surface of the base from the lower side of the side skirt portion, if the lubricating oil is accumulated in the lubricating oil storage recess, it is stored. The lubricating oil prevents foreign matter from entering between the guide surface and the sliding surface. In addition, since the lubricating oil that has flowed out between the guide surface and the sliding surface is guided to the hanging wall portion and collected by the discharge control means, the coolant liquid (cutting oil) used during the cutting operation is discharged control means. When recovered by a recovery device different from the hanging wall portion, the mixture of the coolant liquid and the lubricating oil can be suppressed, and the deterioration of the coolant liquid and the decrease in the service life can be suppressed.
以下、図面を参照して、この発明の実施の形態を説明する。
この実施形態において、図1の左側を「左」、右側を「右」とし、同図の紙面手前側を「前」、奥側を「後」というものとする。
図1および図2に示すように、すべり案内装置(1)は、前後方向に延びた平坦な案内面(2a)および案内面(2a)に連なって下方に延びた側面(2b)を左右に有する基台(2)と、基台(2)の案内面(2a)に潤滑油を介して摺動させられる摺動面(3a)を有し案内面(2a)上を前後移動する移動体(3)と、案内面(2a)と摺動面(3a)との間隙の側方を覆うように基台(2)の側面(2b)に沿って下方に延び移動体(3)の幅方向両端部に形成された側方スカート部(4)と、基台(2)の側面(2b)上縁部に設けられ下方に延びた垂下壁部(5)とを有している。
Embodiments of the present invention will be described below with reference to the drawings.
In this embodiment, the left side of FIG. 1 is “left”, the right side is “right”, the front side of the drawing is “front”, and the back side is “rear”.
As shown in FIG. 1 and FIG. 2, the sliding guide device (1) has a flat guide surface (2a) extending in the front-rear direction and a side surface (2b) extending downward from the guide surface (2a) to the left and right. A movable body having a base (2) having a sliding surface (3a) that can be slid on the guide surface (2a) of the base (2) via a lubricant and moving back and forth on the guide surface (2a) The width of the movable body (3) extending downward along the side surface (2b) of the base (2) so as to cover the side of the gap between (3) and the guide surface (2a) and the sliding surface (3a) It has side skirt portions (4) formed at both ends in the direction, and a hanging wall portion (5) provided on the upper edge of the side surface (2b) of the base (2) and extending downward.
基台(2)は、横断面方形状に形成されて旋盤のベッド(図示略)上に固定され上面が案内面(2a)となった基部(21)と、基部(21)の案内面(2a)に対して前後方向平行に延び基部(21)上に形成された摺動案内部(22)とから構成されている。摺動案内部(22)は、基部(21)の幅方向中央上面に設けられた幅狭部(22a)と、案内面(2a)に対して左右方向平行に延びて突出した突出片を有する幅広部(22b)とから成っている。摺動案内部(22)の幅方向中央に前後方向に延びた凹溝(22c)が幅広部(22b)から幅狭部(22a)に掛けて空けられている。 The base (2) is formed on a lathe bed (not shown) and has a base (21) whose upper surface is a guide surface (2a), and a guide surface of the base (21) ( It comprises a sliding guide part (22) formed on the base part (21) extending in parallel with the longitudinal direction with respect to 2a). The sliding guide part (22) has a narrow part (22a) provided on the central upper surface in the width direction of the base part (21), and a projecting piece projecting parallel to the guide surface (2a) in the left-right direction. It consists of a wide part (22b). A concave groove (22c) extending in the front-rear direction at the center in the width direction of the sliding guide portion (22) is opened from the wide portion (22b) to the narrow portion (22a).
移動体(3)は、上面が平坦形状をなして前後方向に延びた上壁(31)と、上壁(31)の左右両側から垂直下向きに延びた側壁(32)と、側壁(32)から幅方向内側へ延び一部開放された下壁(33)とにより幅方向縦断面形状が略箱型形状をなして形成されている。左右側壁(32)(32)の内面間の距離は、左右側壁(32)(32)間に幅広部(22b)が嵌まるように幅広部(22b)の幅とほぼ同じ長さとされている。下壁(33)の幅方向中央は、幅狭部(22a)が嵌るように幅狭部(22a)の幅とほぼ同じ長さで開放されている。下壁(33)の下面は、摺動面(3a)と成り基部(21)の案内面(2a)と潤滑油を介して接している。 The movable body (3) includes an upper wall (31) having a flat upper surface and extending in the front-rear direction, a side wall (32) extending vertically downward from the left and right sides of the upper wall (31), and a side wall (32). And a lower wall (33) that extends inward in the width direction and is partially opened, the widthwise vertical cross-sectional shape is formed in a substantially box shape. The distance between the inner surfaces of the left and right side walls (32) and (32) is substantially the same as the width of the wide part (22b) so that the wide part (22b) fits between the left and right side walls (32) and (32). . The center in the width direction of the lower wall (33) is opened with a length substantially the same as the width of the narrow portion (22a) so that the narrow portion (22a) fits. The lower surface of the lower wall (33) forms a sliding surface (3a) and is in contact with the guide surface (2a) of the base portion (21) through the lubricating oil.
移動体(3)は、幅広部(22b)を囲うようにかつ下壁(33)の幅方向中央が幅狭部(22a)を挟むようにして摺動自在に摺動案内部(22)を嵌めている。移動体(3)の上壁(31)内面中央にはボールネジ(6)で軸支されたボールナット(34)が設けられている。凹溝(22c)はボールナット(34)よりも大きく形成されており、ボールナット(34)は、凹溝(22c)との間に空隙を空けて嵌められている。 The movable body (3) is slidably fitted with the sliding guide portion (22) so as to surround the wide portion (22b) and so that the center in the width direction of the lower wall (33) sandwiches the narrow portion (22a). Yes. A ball nut (34) supported by a ball screw (6) is provided at the center of the inner surface of the upper wall (31) of the movable body (3). The concave groove (22c) is formed larger than the ball nut (34), and the ball nut (34) is fitted with a gap between the concave groove (22c).
移動体(3)の前端面(3b)および後端面(3c)には、所定の厚みを有する略平板形状ワイパー(7)が取り付けられている。ワイパー(7)は、所定の力で湾曲可能な可撓性を有する合成樹脂等によって形成され、移動体(3)の幅方向縦断面形状と同じ略箱型形状と成っている。前端面(3b)に取り付けられたワイパー(7)の下端部(7a)は、前方向に滑らかに湾曲して先細りに形成されて基部(21)の案内面(2a)に接触しており、後端面(3c)に取り付けられたワイパー(7)の下端部(7a)は、後方向に滑らかに湾曲して先細りに形成されて基部(21)の案内面(2a)に接触している。ワイパー(7)は、移動体(3)の前後方向の移動に伴ってすべり案内装置(1)の前後方向から案内面(2a)に侵入した異物を拭いながら案内面(2a)の外方へ排除するようになっている。 A substantially flat wiper (7) having a predetermined thickness is attached to the front end surface (3b) and the rear end surface (3c) of the moving body (3). The wiper (7) is formed of a flexible synthetic resin or the like that can be bent with a predetermined force, and has a substantially box shape that is the same as the longitudinal cross-sectional shape of the movable body (3). The lower end portion (7a) of the wiper (7) attached to the front end surface (3b) is smoothly curved in the forward direction and is tapered to contact the guide surface (2a) of the base portion (21). The lower end portion (7a) of the wiper (7) attached to the rear end surface (3c) is smoothly curved in a rearward direction and is tapered to be in contact with the guide surface (2a) of the base portion (21). The wiper (7) moves to the outside of the guide surface (2a) while wiping off foreign matter that has entered the guide surface (2a) from the front-rear direction of the sliding guide device (1) as the moving body (3) moves in the front-rear direction. It is supposed to be eliminated.
基部(21)の左右案内面(2a)(2a)の幅方向中央には上方に開口した供給口(図示略)が形成され、案内面(2a)に潤滑油を供給する潤滑油供給装置(図示略)が供給口の下から接続されている。 A supply port (not shown) that opens upward is formed at the center in the width direction of the left and right guide surfaces (2a) and (2a) of the base portion (21), and a lubricant supply device that supplies lubricant to the guide surface (2a) ( (Not shown) is connected from below the supply port.
供給口は、左右の案内面(2a)(2a)に1つずつ形成されてもよく、前後方向に一定の間隔を空けて複数形成されてもよい。 One supply port may be formed on each of the left and right guide surfaces (2a) and (2a), or a plurality of supply ports may be formed at regular intervals in the front-rear direction.
潤滑油供給装置は、潤滑油が充填された潤滑油タンク(図示略)とともにすべり案内装置(1)外に設置され、潤滑油タンクから潤滑油を受給して基部(21)の左右案内面(2a)(2a)に設けられた供給口から案内面(2a)に潤滑油を供給している。案内面(2a)に供給された潤滑油は、移動体(3)の往復移動によって案内面(2a)および摺動面(3a)の全面に拡散させられる。 The lubricating oil supply device is installed outside the sliding guide device (1) together with a lubricating oil tank (not shown) filled with lubricating oil, receives the lubricating oil from the lubricating oil tank, and receives left and right guide surfaces (21) of the base (21) ( 2a) Lubricating oil is supplied to the guide surface (2a) from the supply port provided in (2a). The lubricating oil supplied to the guide surface (2a) is diffused over the entire surface of the guide surface (2a) and the sliding surface (3a) by the reciprocating movement of the moving body (3).
移動体(3)の下壁(33)の左右端部に凹部(33a)が前後にのびて形成されており、側方スカート部(4)が凹部(33a)に下向きに取り付けられている。 The left and right end portions of the lower wall (33) of the movable body (3) are formed with recesses (33a) extending forward and backward, and the side skirt portion (4) is attached downward to the recess (33a).
図4に示すように、側方スカート部(4)は、案内面(2a)の左右外方へ流出した潤滑油を受ける外側壁(41)と、外側壁(41)の下端から外側壁(41)に対して直角をなすように基部(21)の幅方向内方にのびた底壁(42)と、底壁(42)の先端から垂直上向きにのびた内側壁(43)とにより形成される上方に開口した桶状の潤滑油貯留凹所(44)を有している。側方スカート部(4)の外側壁(41)外面と移動体(3)の側壁(32)外面とは面一となっている。側方スカート部(4)は、移動体(3)の摺動面(3a)の前後方向の長さと同じ長さで形成されており、潤滑油貯留凹所(44)の容量は、案内面(2a)に供給される潤滑油の量やすべり案内装置(1)の設置角度によって決定される。 As shown in FIG. 4, the side skirt portion (4) includes an outer wall (41) that receives lubricating oil that has flowed outward from the left and right sides of the guide surface (2a), and an outer wall ( 41) formed by a bottom wall (42) extending inward in the width direction of the base (21) and an inner wall (43) extending vertically upward from the tip of the bottom wall (42) so as to form a right angle with respect to 41). It has a bowl-like lubricating oil storage recess (44) opened upward. The outer surface of the outer wall (41) of the side skirt portion (4) and the outer surface of the side wall (32) of the movable body (3) are flush with each other. The side skirt portion (4) is formed with the same length as the length of the sliding surface (3a) of the moving body (3) in the front-rear direction, and the capacity of the lubricating oil storage recess (44) is determined by the guide surface. It is determined by the amount of lubricating oil supplied to (2a) and the installation angle of the slip guide device (1).
内側壁(43)の上部には、基部(21)側の上段と潤滑油貯留空間側の下段とによりなる直線状段差が前後に延びて形成されている。下段は、垂下壁部(5)の先端よりも上方に位置するように形成されている。 A linear step formed by an upper stage on the base (21) side and a lower stage on the lubricating oil storage space side is formed in the upper part of the inner wall (43) so as to extend in the front-rear direction. The lower stage is formed so as to be positioned above the tip of the hanging wall part (5).
内側壁(43)には、潤滑油貯留凹所(44)内の潤滑油を排出する潤滑油排出路(45)が形成されている。潤滑油排出路(45)は、潤滑油貯留凹所(44)における垂下壁部(5)の先端よりも上方位置にある内側壁(43)上部の下段に上向き開口させられた流入口(45a)と、側方スカート部(4)の表面における流入口(45a)よりも下方位置にある下向き開口させられた流出口(45b)とを有するオーバーフロー孔よりなる。 The inner wall (43) is formed with a lubricating oil discharge passage (45) for discharging the lubricating oil in the lubricating oil storage recess (44). The lubricating oil discharge passage (45) has an inflow opening (45a) opened upward at the lower stage of the upper part of the inner wall (43) located above the tip of the hanging wall (5) in the lubricating oil storage recess (44). ) And an outlet port (45b) opened downward from the inlet port (45a) on the surface of the side skirt portion (4).
前後方向に一定の間隔を空けて内側壁(43)に設けられたオーバーフロー孔によって、排出制御手段(46)が構成されている。排出制御手段(46)を構成するオーバーフロー孔の流入口(45a)が垂下壁部(5)の先端よりも上方に位置することにより、潤滑油貯留凹所(44)内の潤滑油の油面レベルは、垂下壁部(5)の先端よりも上方の位置に保持される。流入口(45a)の高さを超えた油面はオーバーフロー孔に流入するため、油面レベルの最高位は、流入口(45a)の高さとほぼ同じになる。したがって、オーバーフロー孔の流入口(45a)の高さによって油面レベルの最高位が決定される。 The discharge control means (46) is configured by an overflow hole provided in the inner wall (43) with a certain interval in the front-rear direction. Since the inlet (45a) of the overflow hole constituting the discharge control means (46) is located above the tip of the drooping wall (5), the oil level of the lubricating oil in the lubricating oil storage recess (44) The level is held at a position above the tip of the drooping wall (5). Since the oil level exceeding the height of the inlet (45a) flows into the overflow hole, the highest oil level is substantially the same as the height of the inlet (45a). Therefore, the highest oil level is determined by the height of the inlet (45a) of the overflow hole.
排出制御手段(46)は、潤滑油貯留凹所(44)の油面レベルを決めることができる構造であれば、オーバーフロー孔に替えて、例えば、底壁(42)に潤滑油が流通可能な上下方向に貫通した蓋付き貫通孔を形成しセンサーなどにより蓋を開閉させる構成とし、蓋を開閉させることにより潤滑油を適宜排出して油面レベルを一定に保つようにしてもよい。 If the discharge control means (46) has a structure capable of determining the oil level of the lubricating oil storage recess (44), for example, the lubricating oil can flow through the bottom wall (42) instead of the overflow hole. A through-hole with a lid penetrating in the vertical direction may be formed and the lid may be opened and closed by a sensor or the like, and the oil level may be appropriately discharged by opening and closing the lid to keep the oil level constant.
潤滑油排出路(45)の流出口(45b)は、潤滑油を回収するために潤滑油回収タンク(図示略)に接続される。 The outlet (45b) of the lubricating oil discharge passage (45) is connected to a lubricating oil recovery tank (not shown) for recovering the lubricating oil.
垂下壁部(5)は、その上面が基台(2)の案内面(2a)と面一となるように基台(2)の側面(2b)上縁部に設けられ、案内面(2a)と摺動面(3a)との間隙の側方から流出した潤滑油を潤滑油貯留凹所(44)に案内するように下方にのびかつ潤滑油貯留凹所(44)を底部で連通する内外2つの室に区画するように形成されている。垂下壁部(5)は、基台(2)の案内面(2a)の前後方向の長さと同じ長さで形成されている。垂下壁部(5)の下方向の長さは、すべり案内装置(1)の向きや設置角度によって決定される。 The hanging wall (5) is provided on the upper edge of the side surface (2b) of the base (2) so that the upper surface thereof is flush with the guide surface (2a) of the base (2). ) And the sliding surface (3a) so that the lubricating oil flowing out from the side of the gap extends downward and communicates at the bottom with the lubricating oil storage recess (44) so as to guide it to the lubricating oil storage recess (44). It is formed so as to be divided into two chambers inside and outside. The hanging wall (5) is formed with the same length as the length in the front-rear direction of the guide surface (2a) of the base (2). The downward length of the drooping wall portion (5) is determined by the direction and installation angle of the slip guide device (1).
図1から図3に示すように、側方スカート部(4)の前後方向両端部に、潤滑油貯留凹所(44)の両端部分と同部分を貫通させられている垂下壁部(5)との間をシールする接触シール(8)が設けられている。接触シール(8)は、垂下壁部(5)および潤滑油貯留凹所(44)の前後方向から潤滑油が流出することを阻止している。 As shown in FIGS. 1 to 3, a drooping wall portion (5) that is penetrated through the same portion as both end portions of the lubricating oil storage recess (44) at both ends in the front-rear direction of the side skirt portion (4). A contact seal (8) is provided for sealing between the two. The contact seal (8) prevents the lubricating oil from flowing out from the front-rear direction of the drooping wall portion (5) and the lubricating oil storage recess (44).
側方スカート部(4)の内側壁(43)と基部(21)の側面(2b)との間に、移動体(3)の移動によって摩擦が生じないように間隙が設けられている。 A gap is provided between the inner side wall (43) of the side skirt portion (4) and the side surface (2b) of the base portion (21) so that friction is not generated by the movement of the moving body (3).
図3および図4に示すように、接触シール(8)は側方スカート部(4)に固定されているので、移動体(3)が前後方向に往復移動すると共に接触シール(8)も往復移動する。垂下壁部(5)は基台(2)の側面(2b)に固定されているので、移動体(3)が往復移動しても垂下壁部(5)は静止したままの状態となる。 As shown in FIGS. 3 and 4, since the contact seal (8) is fixed to the side skirt (4), the movable body (3) reciprocates in the front-rear direction and the contact seal (8) also reciprocates. Moving. Since the hanging wall portion (5) is fixed to the side surface (2b) of the base (2), the hanging wall portion (5) remains stationary even when the moving body (3) reciprocates.
次に図1〜図4を参照して本発明のすべり案内装置(1)における潤滑油回収方法について説明する。
潤滑油は、潤滑油供給装置によって潤滑油タンクから基台(2)の案内面(2a)上に供給される。供給された潤滑油は、移動体(3)を基台(2)の案内面(2a)上を滑らかに摺動させるとともに、切削作業などによりすべり案内装置(1)の前後方向から侵入して案内面(2a)上に付着した異物を案内面(2a)の前後方向および左右方向の外方へ押し流している。すべり案内装置(1)の側方から案内面(2a)と摺動面(3a)との間への異物の侵入は、側方スカート部(4)の外側壁(41)により阻止されている。
Next, a lubricating oil recovery method in the slip guide device (1) of the present invention will be described with reference to FIGS.
The lubricating oil is supplied from the lubricating oil tank onto the guide surface (2a) of the base (2) by the lubricating oil supply device. The supplied lubricating oil causes the moving body (3) to slide smoothly on the guide surface (2a) of the base (2) and penetrates from the front-rear direction of the slide guide device (1) by cutting work or the like. The foreign matter adhering to the guide surface (2a) is pushed away outward in the front-rear direction and the left-right direction of the guide surface (2a). Intrusion of foreign matter from the side of the sliding guide device (1) between the guide surface (2a) and the sliding surface (3a) is prevented by the outer wall (41) of the side skirt (4). .
摺動面(3a)の左右方向外方へ押し流された潤滑油は、垂下壁部(5)に案内されて潤滑油貯留凹所(44)内へ流れ落ちる。潤滑油貯留凹所(44)内に潤滑油が溜まっていくと、潤滑油の油面レベルが、垂下壁部(5)の先端部をこえて潤滑油排出路(45)の流入口(45a)の高さと同じになる。さらに流入口(45a)の高さを越えた潤滑油は、潤滑油排出路(45)の流入口(45a)に流入して流出口(45b)から排出される。潤滑油排出路(45)から排出された潤滑油は、潤滑油回収タンクに回収される。 The lubricating oil pushed outward in the left-right direction of the sliding surface (3a) is guided by the drooping wall portion (5) and flows down into the lubricating oil storage recess (44). As the lubricating oil accumulates in the lubricating oil storage recess (44), the lubricating oil level exceeds the tip of the drooping wall (5) and the inlet (45a) of the lubricating oil discharge channel (45). ) Is the same height. Furthermore, the lubricating oil exceeding the height of the inlet (45a) flows into the inlet (45a) of the lubricating oil discharge passage (45) and is discharged from the outlet (45b). The lubricating oil discharged from the lubricating oil discharge passage (45) is collected in the lubricating oil collection tank.
このようにして、潤滑油は、移動体(3)が前後方向に往復移動するたびに案内面(2a)の左右方向外方に押し流されるが、潤滑油貯留凹所(44)に一定量溜まるとともに潤滑油排出路(45)から排出される。側方スカート部(4)の内側壁(43)と基台(2)の側面(2b)との間隙から異物が侵入しても潤滑油貯留凹所(44)に潤滑油が溜まっているため、この潤滑油によって摺動面(3a)と案内面(2a)との間への異物侵入が阻止される。したがって、すべり案内装置(1)の側方からのみでなく側方スカート部(4)の下方からの異物の侵入も阻止することができる。 In this way, the lubricating oil is pushed away outward in the left-right direction of the guide surface (2a) each time the moving body (3) reciprocates in the front-rear direction, but a certain amount of oil is accumulated in the lubricating oil storage recess (44). At the same time, it is discharged from the lubricating oil discharge passage (45). Even if foreign matter enters through the gap between the inner side wall (43) of the side skirt (4) and the side surface (2b) of the base (2), the lubricating oil remains in the lubricating oil storage recess (44). The lubricant prevents foreign matter from entering between the sliding surface (3a) and the guide surface (2a). Accordingly, it is possible to prevent foreign substances from entering not only from the side of the sliding guide device (1) but also from below the side skirt (4).
他の実施形態として、側方スカート部(4)の内側壁(43)の下段に前後方向に延びた凹溝が形成され、潤滑油排出路(45)の流入路は凹溝内に形成されてもよい。 As another embodiment, a concave groove extending in the front-rear direction is formed in the lower stage of the inner wall (43) of the side skirt portion (4), and an inflow path of the lubricating oil discharge path (45) is formed in the concave groove. May be.
(1) すべり案内装置
(2) 基台
(2a) 案内面
(2b) 側面
(3) 移動体
(3a) 摺動面
(4) 側方スカート部
(44) 潤滑油貯留凹所
(45) 潤滑油排出路
(46) 排出制御手段
(5) 垂下壁部
(8) 接触シール
(1) Slip guide device
(2) Base
(2a) Guide surface
(2b) Side view
(3) Mobile object
(3a) Sliding surface
(4) Side skirt
(44) Lubricant reservoir recess
(45) Lubricating oil discharge passage
(46) Emission control means
(5) Hanging wall
(8) Contact seal
Claims (2)
移動体に、案内面と摺動面との間隙の側方を覆うように基台の側面に沿って下方に延びる側方スカート部が形成されており、
側方スカート部は、基台の側面と向かい合う内面部分に、上方に開口した桶上の潤滑油貯留凹所を有しており、基台の側面上縁部に、案内面と摺動面との間隙の側方から流出した潤滑油を潤滑油貯留凹所に案内するように下方にのびかつ潤滑油貯留凹所を底部で連通する内外2つの室に区画する垂下壁部が形成されており、
側方スカート部における潤滑油貯留凹所の両端部分と、同部分を貫通させられている垂下壁部との間が、接触シールによってシールされており、
側方スカート部に、潤滑油貯留凹所の潤滑油を排出する潤滑油排出路が形成されており、
潤滑油貯留凹所内の潤滑油の油面レベルは、排出制御手段によって、垂下壁部の先端よりも上方位置に保持されるようになっている、すべり案内装置。 A sliding guide device in which the sliding surface of the moving body is slid on the guide surface of the base through the lubricating oil,
The moving body is formed with a side skirt portion extending downward along the side surface of the base so as to cover the side of the gap between the guide surface and the sliding surface.
The side skirt portion has a lubricating oil storage recess on the ridge that opens upward on the inner surface portion facing the side surface of the base, and a guide surface and a sliding surface on the upper edge of the side surface of the base. A drooping wall section is formed that extends downward and guides the lubricating oil flowing out from the side of the gap to the lubricating oil storage recess and divides the lubricating oil storage recess into two chambers that communicate with each other at the bottom. ,
Between the both end portions of the lubricating oil storage recess in the side skirt portion and the drooping wall portion penetrating the same portion is sealed by a contact seal,
In the side skirt part, a lubricating oil discharge passage for discharging the lubricating oil in the lubricating oil storage recess is formed,
A slip guide device in which the level of the lubricating oil in the lubricating oil storage recess is held at a position above the tip of the hanging wall by the discharge control means.
Lubricating oil outlet has an inlet that is opened above the tip of the drooping wall in the lubricating oil reservoir, and an outlet that is opened below the inlet on the surface of the side skirt. The slip guide device according to claim 1, wherein a discharge control means is configured by the overflow hole.
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