TWI521152B - The structure supply structure and the direct guide device of the direct guide device - Google Patents

Description

Lubricant supply structure and linear motion guiding device of linear motion guiding device

The present invention relates to a lubricant supply structure and a linear motion guiding device for a linear motion guiding device.

Linear motion guides, ball screw devices, and the like, are required to supply lubricant to the position where the parts are in sliding contact or the position of the rolling contact. Therefore, the configuration employed is such that the moving member that moves in a relatively reciprocating manner along the linearly extending guide member stores the lubricant and supplies the stored lubricant to the contact portion of the part.

The lubricant supply structure is known from the prior art as disclosed in Patent Document 1. This configuration is a lubricant supply configuration of a linear guide of a specific example of the linear motion guiding device. The linear guide device has a guide member, that is, a guide rail, and a slide member that is a movable member that reciprocates relative to the guide rail. The structure is configured to provide a lubricant receiving opening on the end surface of the sliding member in the moving direction, and on the other hand, a container filled with the lubricant is disposed on the end surface of the sliding member, and the container filled with the lubricant is connected to the sliding member. Lubricant receiving port.

[first technology offer] [Patent Literature]

Patent Document 1: JP2007-16874A

The lubricant supply structure described in Patent Document 1 is configured such that a container is disposed in an end surface of the slider in the moving direction, and the connecting member connects the container to the lubricant receiving port of the slider to supply the lubricant from the container to the slider.

However, Patent Document 1 describes only the structure and operation for the above-described structure and container replacement, and the means for controlling the amount of lubricant and the timing of supplying the lubricant when the lubricant in the container is supplied to the slider are not disclosed. . Therefore, there is a need for further improvement in the case of efficiently supplying lubricants.

The present invention has an object to solve the above problems, and it is possible to efficiently lubricate a linear motion guiding device.

In order to solve the problem, the lubricant supply structure of the linear motion guide device according to the aspect of the present invention includes: a guide member that extends linearly; and a moving member that reciprocates along the guide member in a relative row, and In the linear motion guiding device in which the moving member is provided with the lubricant receiving opening, the end surface of the moving member is mounted in the moving direction end surface The container and the lubricant receiving port are formed to communicate with each other while being filled with a lubricant and configured such that the pressing force from the outside reduces the volume to extrude the container of the lubricant. The member is provided with a pressing tool that presses the container by the movement of the moving member.

The lubricant supply structure of the linear motion guiding device may be configured to further include a pipe joint capable of supplying a lubricant to the container.

Further, the container may be configured to be made of a flexible material and configured such that a pressing force from the outside reduces the crushing volume of the container.

Further, the container may be configured to be made of a flexible material and configured such that the pressing force from the outside reduces the crushing volume of the container, and the distance from the container to the far side of the moving member The surface is provided with a pressure receiving portion that is more rigid than the container and formed into a plate shape, and the movement of the pressure receiving portion toward the moving member side reduces the container crushing volume.

Further, the linear motion guide device according to another aspect of the present invention is directed to: a guide member that extends in a straight line shape; and a moving member that reciprocates in a row along the guide member, and is provided with lubrication in the moving member The linear motion guiding device of the agent receiving port is provided with a lubricant supply structure having the above-described linear motion guiding device.

In the present invention, the container located at the end surface of the moving member is urged by the urging member, thereby moving the lubricant inside the container toward the container. The moving member is extruded and supplied, so that the supply amount of the lubricant and the timing of supply can be controlled, and based on this, the lubricant can be efficiently supplied.

10‧‧‧rails (guide members)

20‧‧‧Sliding parts (moving parts)

21‧‧‧Slider body

22‧‧‧End cover

22a‧‧‧Lubricant receiving port

30‧‧‧ Container

31‧‧‧Lubricant supply port

32‧‧‧ Pressure Department

40‧‧‧ Pushing tools

41‧‧‧ front

50‧‧‧ pipe joint

60‧‧‧Lubrication supply components

G‧‧‧Lubricant

Fig. 1 is a side view showing a first embodiment of the present invention.

Fig. 2 is an enlarged side view of the container of Fig. 1.

Figure 3 is a front elevational view of the container of Figure 2.

Fig. 4 is an enlarged perspective view of the pusher of Fig. 1.

Fig. 5 is an explanatory view showing a supply state when a lubricant is supplied to a moving member in the embodiment of Fig. 1.

Fig. 6 is a view showing a first modification of the first embodiment.

Fig. 7 is a view showing a second modification of the first embodiment.

Fig. 8 is a view showing a third modification of the first embodiment.

Fig. 9 is a view showing a fourth modification of the first embodiment.

Fig. 10 is an explanatory view showing a supply state when a lubricant is supplied to a moving member in a fourth modification of the first embodiment.

Fig. 11 is a view showing a fifth modification of the first embodiment.

Figure 12 is a side view showing a second embodiment of the present invention.

Figure 13 is a side elevational view of the container of Figure 12.

Figure 14 is a front elevational view of the container of Figure 13.

Fig. 15 is an enlarged perspective view of the pusher of Fig. 12.

Fig. 16(a) is a view showing a state in which the lubricant is started to be extruded in the embodiment of Fig. 12, and Fig. 16(b) is a view showing Fig. 12(b). A description of the supply state when the lubricant is supplied to the moving member in the embodiment.

Fig. 17 is a view showing a first modification of the second embodiment.

Fig. 18 is an explanatory view showing a second modification in which a pipe joint for supplying a lubricant to a moving member is attached to the front surface in the embodiment of Fig. 12.

Fig. 19 is a view showing a third modification of the pipe joint for supplying a lubricant to the moving member to the container in the embodiment of Fig. 12.

Fig. 20 is a side view showing a third embodiment of the present invention, wherein Fig. 20(a) is a view showing a state in which the lubricant is started to be extruded, and Fig. 20(b) is a view showing a state in which the lubricant is supplied to the moving member. Description of the supply status.

Fig. 21 is a view of the container of Fig. 20, Fig. 21(a) is a side view of the inside of the container, Fig. 21(b) is a side view of the outside of the container, and Fig. 21(c) is a plan view of the inside of the container.

[Embodiment of the Invention] [First Embodiment]

Hereinafter, the present embodiment will be described with reference to the drawings. This embodiment is an embodiment of the present invention applied to a linear guide device. Based on this, the guide rail 10 extending in a straight line corresponds to the guide member of the present invention, and the slider 20 attached to the guide rail 10 and moving back and forth along the guide rail 10 corresponds to the movable member of the present invention.

In the present embodiment, the guide rail 10 is fixed to the upper surface of the base 1 in a horizontal state. Further, the slider 20 is formed by a rolling body formed by a ball or a roller, and is attached to the slider body 21 of the guide rail 10 and the end cover 22 disposed on both sides in the moving direction of the slider body 21, and is configured to advance and retreat along the guide rail 10. . A side seal (not shown) for sealing between the end cap 22 and the guide rail 10 is provided on the side of the end cap 22 that is farther from the slider body 21. The above configuration is the same as that of the conventional linear guide, and therefore the detailed description of the linear guide will be omitted.

Further, in the linear guide device, in many cases, the guide rail 10 is horizontally formed in the longitudinal direction thereof and the horizontal direction thereof, and the slider 20 having the same moving direction as the longitudinal direction of the guide rail 10 is attached to the rear surface, that is, the upper surface thereof. Therefore, in this embodiment, the example will be described with reference to the longitudinal direction, the vertical direction, and the horizontal direction. Based on this, when the inclination of the guide rail 10 and the slider 20 in the longitudinal direction or the vertical direction or the left-right direction is changed, the direction and inclination of each portion are explained in accordance with the posture.

For the both end covers 22, only the end cover 22 on the left side in Fig. 1 is shown, but the end face 22a on the side farther from the slider body 21 is opened with the receiving opening 22a of the lubricant G. The lubricant receiving port 22a is connected to a lubricant pit (not shown) in the end cap 22. For the end faces on both sides in the moving direction of the slider 20, only the left side of the slider 20 is illustrated in the first drawing, but the end faces on both sides in the moving direction of the slider 20 are provided with the lubricant G filled therein. And the volume is reduced by the pressing force from the outside to extrude the container 30 of the lubricant G.

Container 30, so-called fuel tank, oil storage tank, grease The tank stores a specified amount of lubricant G (lubricating oil, grease, etc.). In addition, the lubricant G used in the linear guide has lubricating oil and grease. Lubricating oils include, for example, mineral oils, diesters, polyvalent esters, eucalyptus oils, fluoro oils, synthetic hydrocarbon oils, and the like. Further, the grease may be, for example, a grease based on mineral oil, diester, polyvalent ester, eucalyptus oil, fluoro oil, synthetic hydrocarbon oil or the like.

As shown in FIGS. 2 and 3, the container 30 has a gate shape in a state of traversing the guide rail 10, and the entire container 30 is made of a flexible material that can be compressed in the moving direction of the slider 20 and the length of the guide rail 10. forming. In other words, the container 30 is configured to be easily crushed in the above-described moving direction, and the decrease in volume at the time of crushing increases the internal pressure. Next, the container 30 is provided with a lubricant supply port 31 formed to protrude, and the lubricant supply port 31 is to be inserted into the lubricant G receiving port 22a formed on the end cap 22 of the slider 20. Based on this, the lubricant in the container 30 is extruded from the supply port 31 to the outside of the container 30 due to an increase in the internal pressure of the container.

Further, the back surface of the main body of the container 30, that is, the surface on the side farther from the slider 20, is provided with a pressure receiving portion 32 which is more rigid than the main body of the container 30 and formed into a plate shape, and the pressure receiving portion 32 is The movement of the slider 20 side reduces the volume of the main body of the container 30 toward the thickness direction (the horizontal direction in the first drawing and the second drawing).

Further, the material of the container 30 is not particularly limited, but a material having soft solvent resistance and oil resistance is preferable. The material is, for example, a resin material such as polyethylene, polyamide, polyurethane, chloroprene rubber, vinyl chloride elastomer, or polyurethane elastomer. When the heat resistance is considered, the resin composition containing the glass fiber coated with aluminum or ruthenium in the above resin material is preferred.

Further, the material of the pressure receiving portion 32 is not particularly limited, but metal or resin is preferred. Metal materials, for example, cold rolled steel for general structure, carbon steel for mechanical construction, alloy steel for mechanical construction, carbon tool steel, high speed tool steel, alloy tool steel, stainless steel, aluminum alloy, copper alloy, titanium alloy. Further, the resin material is, for example, polyacetal, polyether ether ketone, or phenol resin excellent in oil resistance. Further, as shown below, since the pressure receiving portion 32 collides with the front surface 41, it is preferable to have rigidity, and it is more preferable to use polyacetal among the resin materials in consideration of rigidity.

The container 30 is supported by the end cap 22 in a detachable state. The form of the support may be configured to be detachably attached or detached, or the container 30 may be engaged with the end cap 22 by an engaging mechanism such as a fastening tape (not shown). Further, since the container 30 is supported by the end cover 22, it does not contact the guide rail 10. However, if the frictional resistance between the container 30 and the guide rail 10 can be made small, it can be configured to be in contact with the guide rail 10.

On the base 1 to which the guide rail 10 is fixed, a pusher 40 that straddles the guide rail 10 is fixed to the end of the guide rail 10. The pusher 40 is configured such that when the slider 20 is moved to a predetermined position on the guide rail 10, the front face 41 is pressed against the container 30 by the moving force of the slider 20. The front surface 40 is formed in a door shape similarly to the container 30, and is configured to be capable of effectively pressing the pressure receiving portion 32 of the container 30.

The pusher 40 can be fixed to the guide rail 10 as long as it can push the container 30 as described above, or can be fixed to the base 1 to which the guide rail 10 is to be fixed. Further, the position of the urging tool 40, specifically as shown at the end of the rail 10 described above, is outside the range of reciprocating movement of the slider 20 during normal operation. In this way, the position of the pusher 40 will be set. It is only in the area where the slider 20 moves in the case where the lubricant is to be supplied from the inside of the container 30 to the slider 20, etc., requiring maintenance. In order to push the container 30 on the right side (not shown) in the first drawing, the pressing tool 40 has the same arrangement on the right end of the guide rail 10 (not shown) of Fig. 1 .

When the lubricant G is to be extruded from the container 30, the slider 20 is moved to the end of the guide rail 10 outside of its normal operating range. The timing of extruding the lubricant from the container 30 is such that the period during which the lubricant G of the lubricant pit in the end cap 22 is reduced is appropriate, or the period during which the lubricant G needs to be supplied to the lubricant path in the end cap 22 is Timely. Based on this, the lubricant may be supplied periodically or every other operation time, or at other timings.

For the extrusion of the lubricant G, the state of extrusion thereof is illustrated in Fig. 5. Here, when the slider 20 moves (arrow symbol A) to the end of the guide rail 10, the container 30 will abut the front face 41 of the pusher 40, and the pressure receiving portion 32 of the container 30 will approach the slider as indicated by the piston. The relative movement of the directions 20 causes the entire container 30 to begin to collapse. As a result, the internal pressure of the container 30, that is, the pressure of the lubricant (here, the grease) G becomes high, and the lubricant G is extruded from the supply port 31 of the container 30 (arrow symbol B) to the end cap 22. Inside the receiving port 22a. The lubricant G is supplied from the receiving port 22a to a lubricant pit and a lubricant path (not shown) in the end cover 22, and is used for lubrication in which the slider 20 is particularly used in a circulation path of the rolling elements of the slider 20.

The amount of the lubricant G in the container 30 or the amount of the lubricant G to be supplied at one extrusion can be suitably set. Thus, when a specified amount of the lubricant G is supplied into the end cap 22, it is returned to the normal operation, but the container is viewed. Depending on the amount of residual lubricant in 30, it is sometimes necessary to replace another container 30 that has been filled with the lubricant G as needed. Based on this, another container 30 prepared is often prepared in the vicinity of the linear guide. In this way, the lubricant G in the container 30 can be replenished in the slider 20, so that the lubrication state of the linear guide can be stably maintained.

Further, the first embodiment is an example of the present invention, and the present invention is not limited to the embodiment.

For example, in the first drawing, only the left side of the slider 20 is shown, and the right side of the slider 20 is not shown, but the right side thereof is also the same as the left side, and similarly, the lubricant receiving port 22a, the pressing device 40, and the container may be provided. 30. The pressure receiving portion 32 and the lubricant supply port 31.

Further, the first embodiment shown in Fig. 1 may be formed as the configuration of the first modification shown in Fig. 6. That is, in the first modification, the container 30 is formed in the same shape as the second embodiment described below, and is formed on the guide rail 10 as a whole. Further, in the first modification, although not shown in FIG. 6, the lubricant receiving port 22a, the pressing tool 40, the container 30, the pressure receiving portion 32, and the lubrication are the same as in the first embodiment. The agent supply port 31 may also be provided on both sides in the moving direction of the slider 20 (left and right sides of Fig. 6).

Further, the first embodiment shown in Fig. 1 may be formed as a configuration of the second modification shown in Fig. 7. That is, as shown in Fig. 7(a), the lubricant G in the container 30 is located below the supply port 31 in the vertical direction, but when the container 30 is crushed by the pusher 40 as shown in Fig. 7(b) , the lubricant G will follow the side of the inside of the container 30 (sliding The opposite sides of the body 21 are moved upward in the vertical direction to the supply port 31, so that the lubricant G is supplied to the supply port 31.

Further, the first embodiment shown in Fig. 1 may be formed as a configuration of the third modification shown in Fig. 8. That is, when the linear guide is configured such that the vertical surface such as the wall surface is disposed such that the longitudinal direction of the guide rail 10 is in the vertical direction, the lubricant-extracting member 35 that can absorb the lubricant G may be disposed in the container 30. The lubricant discharge member 35 is in close contact with the side of the side surface of the container 30 facing the slider body 21, and is disposed at least in the vicinity of the supply port 31 among the side surfaces, and is impregnated with the lubricant discharge member 35. There is a lubricant G.

When a large amount of the lubricant G is housed in the container 30 as shown in Fig. 8(a), the lubricant G pushed by the pressure receiving portion 32 (refer to the arrow symbol on the left side) moving in the direction of the slider 20 is not passed. The lubricant discharge member 35 directly reaches the supply port 31, and reaches the supply port 31 through the lubricant discharge member 35 as indicated by the arrow symbol on the right side. That is, the lubricant discharge member 35 is pressed by the pressure receiving portion 32, so that the lubricant G in the lubricant discharge member 35 is discharged, and reaches the supply port through the lubricant discharge member 35 as indicated by the arrow symbol on the right side. 31. Based on this, the lubricant G in the container 30 is supplied to the supply port 31 without any problem.

On the other hand, when the lubricant G in the container 30 is consumed or the like, as shown in Fig. 8(b), only a small amount of the lubricant G is contained in the container 30, even if the lubricant G is subjected to the movement toward the slider 20 The pressing portion 32 (see the arrow symbol on the left side) is pushed, and it is not easy for the lubricant G to directly reach the supply port 31 without passing through the lubricant discharge member 35. However, lubrication The agent-derived member 35 is pressed by the pressure receiving portion 32, so that the lubricant G in the lubricant-releasing member 35 is discharged, so that the lubricant G passes through the lubricant-extracting member 35 as indicated by the arrow symbol on the right side. Arrived at the supply port 31. Based on this, even if the lubricant G located away from the supply port 31 can be supplied to the supply port 31 without any problem.

Further, the first embodiment shown in Fig. 1 may be formed as a configuration of the fourth modification shown in Figs. 9 and 10. That is, the container 30 may have a syringe-like configuration. The lubricant G is housed in the container 30 as shown in Fig. 9, but when the movement of the slider 20 is pressed against the front surface 41 of the pressing member 40 as shown in Fig. 10, it is pressed. The portion 32 will move within the container 30 in a direction approaching the slider body 21. As a result, the volume of the portion surrounded by the container 30 and the pressure receiving portion 32 is reduced, and the lubricant G in the container 30 is pushed out by the pressure receiving portion 32 to the supply port 31.

Further, the first embodiment shown in Fig. 1 may be formed as the configuration of the fifth modification shown in Fig. 11. That is, the container 30 can also be a syringe. The syringe is composed of a cylinder for accommodating the lubricant G and a plunger that can be retracted and housed in the cylinder, and an opening for discharging the lubricant G is formed in the cylinder. Next, the opening is connected to the supply port 31, and the tail of the plunger is placed opposite to the front surface 41 of the pressing tool 40. When the tail of the plunger abuts against the front face 41 of the pusher 40, when the plunger is pushed into the cylinder, the volume of the portion surrounded by the cylinder and the plunger is reduced, so the lubricant G in the syringe is It is extruded and supplied from the opening to the supply port 31 (refer to (a) and (b) of Fig. 11).

[Second embodiment]

Hereinafter, the second embodiment will be described with reference to the drawings. However, the configuration and operation of the linear guide device of the second embodiment are substantially the same as those of the first embodiment, and therefore, only the different portions will be described, and the description of the same portions will be omitted. In addition, in FIGS. 12 to 19, the same or corresponding portions as those in FIGS. 1 to 11 are denoted by the same reference numerals as those in FIGS. 1 to 11.

In the end faces on both sides in the moving direction of the slider 20, although only the left side of the slider 20 is illustrated in Fig. 12, the left and right end faces are provided with a lubricant G internally filled therein and a pressing force from the outside. The volume is reduced by the container 30 that causes the lubricant G to be extruded. The container 30, as shown in Figs. 12 to 14 is formed in such a shape that its entirety is located on the guide rail 10.

A presser 40 that straddles the guide rail 10 is fixed to the end of the guide rail 10 on the base 1 to which the guide rail 10 is fixed. The pusher 40 pushes the front face 41 against the container 30 by the moving force when the slider 20 is moved to a designated position on the guide rail 10. As shown in Fig. 15, the front surface 41 is formed in the same substantially rectangular shape as the container 30, and is configured to be able to effectively press the pressure receiving portion 32 of the container 30.

The extrusion state of the lubricant G is described in the 16th (a)th and 16th (bth) drawings. As shown in Fig. 16(a), when the slider 20 is moved (arrow symbol A) to the end of the guide rail 10, the container 30 will abut against the front face 41 of the pusher 40, and the pressure receiving portion 32 of the container 30 will The direction of the slider 20 is relatively moved as indicated by the piston. As a result, like the 16th (b) As shown in the figure, the internal pressure of the container 30, that is, the pressure of the lubricant G (here, the grease) becomes high, and the lubricant G is extruded from the supply port 31 of the container 30 (arrow symbol B) to the end cap. The receiving port 22a of 22 is inside. The lubricant G is supplied from the receiving port 22a to a lubricant pit and a lubricant path (not shown) in the end cover 22, and is used for lubrication in which the slider 20 is particularly used in a circulation path of the rolling element of the slider 20.

Further, the second embodiment is an example of the present invention, and the present invention is not limited to the second embodiment.

For example, the second embodiment shown in Fig. 12 may be formed as the configuration of the first modification shown in Fig. 17. That is, in the first modification, the container 30 is formed in the same manner as the first embodiment described above, and is formed in a gate shape across the guide rail 10. Further, in the first modification, although not shown in FIG. 17, the lubricant receiving port 22a, the pressing device 40, the container 30, the pressure receiving portion 32, and the like may be similar to the second embodiment. The lubricant supply port 31 is provided on both sides in the moving direction of the slider 20 (left and right sides of Fig. 12).

Further, the linear guide device may be provided with a pipe joint 50 configured to supply the lubricant G into the container 30 when the amount of the lubricant G in the container 30 or the amount of the lubricant G supplied once for extrusion is insufficient. The pipe joint 50 as shown in the second modification of Fig. 18 can also be provided on the front face 41. Alternatively, as shown in the third modification of Fig. 19, the pipe joint 50 may be provided in the container 30. In this way, the lubricant in the container 30 can be replenished in the slider 20, so that the lubrication state of the linear guide can be stably maintained. The pipe joint 50 is, for example, a nipple or the like.

[Third embodiment]

Hereinafter, a third embodiment will be described with reference to the drawings. However, the configuration and operational effects of the linear guide device according to the third embodiment are substantially the same as those of the first embodiment. Therefore, only the different portions will be described, and the description of the same portions will be omitted. In addition, in FIGS. 20 and 21, the same or corresponding portions as those in FIGS. 1 to 11 are denoted by the same reference numerals as those in FIGS. 1 to 11.

In the linear guide device according to the third embodiment, as shown in Fig. 20(a), a lubricant supply member 60 is provided inside the container 30. The lubricant supply member 60 is provided at the end face of the sliding member 20 of the end cover 22. The lubricant supply member 60 is formed of a material that is flexible toward the direction in which the slider 20 moves or the rail 10 is long and compressible (retractable). In other words, the lubricant supply member 60 is configured to be easily crushed toward the above-described long direction. The internal pressure of the lubricant supply member 60 is increased by the volume reduction at the time of crushing.

Next, the lubricant supply member 60 is provided with a protruding lubricant G supply port 61 to be inserted into the lubricant G receiving port 22a formed on the end cover 22 of the slider 20. Based on this, the lubricant G in the container 30 is extruded from the supply port 61 to the outside of the container 30 by the increase in the internal pressure of the lubricant supply member 60.

Further, the back surface of the lubricant supply member 60, that is, the surface on the side farther from the slider 20, is provided with a pressure receiving portion 32 having a high rigidity and formed into a plate shape via the container 30. Then, by the movement of the pressure receiving portion 32 toward the slider 20 side, the volume of the lubricant supply member 60 is decreased toward the long direction. less.

As shown in Fig. 20(b), when the lubricant G is to be extruded from the lubricant supply member 60, the slider 20 is moved to the end of the guide rail 10 located outside the normal operating range. The timing of extruding the lubricant G from the lubricant supply member 60 is such that the period of the lubricant G of the lubricant pit in the end cap 22 is reduced, or the lubricant path of the lubricant G in the end cap 22 is required. The period is equal. Based on this, the lubricant may be supplied periodically or every other operation time, or at other timings.

Further, for the extrusion of the lubricant G, as shown in Fig. 20(b), when the slider 20 moves (arrow symbol A) to the end of the guide rail 10, the lubricant supply member 60 abuts against the container 30. The front face 41 of the urging tool 40, the pressure receiving portion 32 of the container 30 is relatively moved in the moving direction of the slider 20, and the lubricant supply member 60 starts to be flattened. As a result, the internal pressure of the lubricant supply member 60, that is, the pressure of the lubricant G (here, the grease) becomes high, and the lubricant G is extruded from the supply port 61 of the lubricant supply member 60 (arrow symbol B) ) to the receiving port 22a of the end cap 22. The lubricant G is supplied from the receiving port 22a to a lubricant pit and a lubricant path (not shown) in the end cover 22, and is used for lubrication in which the slider 20 is particularly used in a circulation path of the rolling elements of the slider 20.

As shown in Fig. 21(a), for example, the bellows-shaped lubricant supply member 60 is disposed inside the container 30 in a detachable state. As shown in Fig. 21(b), the container 30 is provided with a hole 62 configured to be able to confirm the residual amount of the lubricant G filled in the lubricant supply member 60 from the outside of the container 30. In addition, when the lubricant in the lubricant supply member 60 When the residual amount becomes small, it is necessary to open the cover 63 to fill the lubricant supply member 60 with the lubricant G. A cover 63 is provided on the upper side of the container 30. The cover 63 may be provided on the left and right side faces of the container 30 or the end faces in the moving direction, without depending on the embodiment. Further, as shown in Fig. 21(c), the lubricant supply member 60 is not limited to one, and a plurality of the lubricant supply members 60 may be arranged in the width direction (left-right direction) (two in the figure). ). Here, the lubricant supply member 60 is, for example, a pump, a dropper, or the like.

Further, the first to third embodiments have been described with respect to the case where the present invention is applied to a linear guide device, but the present invention is also applicable to other linear motion guide devices such as a ball screw device. When the present invention is applied to a ball screw device, it is a matter of course that the screw shaft corresponds to the guide member of the present invention, and the nut that is screwed to the screw shaft via the ball corresponds to the moving member of the present invention.

Further, the viscosity of the lubricant G (grease, lubricating oil) used in the present invention is as follows. The slider 20 will collide with the front face 41 of the pusher 40, but the direction of movement of the slider 20 will change before and after the collision, and thus will stand still during the collision. If the grease is soft or the lubricant is low viscosity, the grease or lubricant will generate inertial force when it is stationary. Based on this, the grease or the lubricating oil is unstable, and the supply of the grease or the lubricating oil to the supply port 31 may not be sufficiently performed. Further, when the grease is hard or the lubricating oil has a high viscosity, the pressure receiving portion 32 may be damaged by the impact of the grease or the lubricating oil. In order to avoid the above problem, the mixing consistency of the grease is preferably 180 or more and 295 or less, and the viscosity of the lubricating oil is preferably 1 mm ² or more and 200 mm ² or less.

1‧‧‧ machine base

10‧‧‧rails (guide members)

20‧‧‧Sliding parts (moving parts)

21‧‧‧Slider body

22‧‧‧End cover

22a‧‧‧Lubricant receiving port

30‧‧‧ Container

31‧‧‧Lubricant supply port

32‧‧‧ Pressure Department

40‧‧‧ Pushing tools

41‧‧‧ front

G‧‧‧Lubricant

Claims (5)

A lubricant supply structure for a linear motion guiding device includes: a guiding member extending linearly; and a moving member that reciprocates relative to the guiding member, and the lubricant member is provided with a lubricant receiving port In the moving guide device, the end surface of the moving member in the moving direction is provided with a container which is filled with a lubricant and the external pressing force reduces the volume to extrude the lubricant container. The container communicates with the lubricant receiving port, and the guide member includes a pusher that presses the container by the movement of the moving member. The lubricant supply structure of the linear motion guide device according to claim 1, further comprising a pipe joint capable of supplying a lubricant to the container. The lubricant supply structure of the linear motion guiding device according to the first or second aspect of the invention, wherein the container is made of a flexible material and the pressing force from the outside causes the container to be crushed to reduce the volume. . The lubricant supply structure of the linear motion guiding device according to the first or second aspect of the invention, wherein the container is made of a flexible material and the pressing force from the outside causes the container to be crushed to reduce the volume. And a surface of the container that is farther from the container than the container is formed to have a plate-shaped pressure receiving portion that is higher in rigidity than the container, and the movement of the pressure receiving portion toward the moving member side causes the container to be pressed. Flat reduces volume. A linear motion guiding device includes: a guiding member extending linearly; and a moving structure that moves relative to the guiding member And a lubricant supply structure of the linear motion guiding device according to any one of claims 1 to 4, wherein the moving member is provided with a lubricant receiving port. .