JP2005207467A - Self-lubrication module of linear guide way - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid shortening the effective stroke of a linear guide way, enhance lubricating efficiency, and prolong the service lifetime of the linear guide way. <P>SOLUTION: A self-lubrication module of the linear guide way is to be installed at the side of a slide block of the linear guide way and composed chiefly of an oil storage case whose outside shape suits the side of the slide block and internal space serves as an oil storing space for storing the lubricating oil and an oil-impregnated material installed inside the oil storage case and lubricating directly the rolling elements upon absorbing the lubricating oil from the oil storing space, wherein it is possible to enhance the lubricating efficiency and prolong the effective stroke of the linear guide way. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a self-lubricating module for a linear guideway for lubricating the linear guideway.
The linear guide way is a linear guide mechanism for precision control, and is widely applied to robots, industrial machines, machine industries, automation equipment, measuring devices, electronic devices, and the like.

At present, linear guideways are beginning to be widely applied to precision machines and general industrial machines, so the lubrication function of linear guideways is also beginning to be emphasized.
There are two types of lubrication. First, as shown in FIG. 6, a linear guideway lubrication system is attached to end lids 53 at both ends of a slide block 54, and the lubricant is stored in an oil tank 52 of the lubrication system. Is applied directly to a rolling groove (not shown) in the linear guideway, and the rolling body 55 is passed through the rolling groove with lubricating oil, whereby the rolling body 55 is indirectly lubricated. The other is that, as shown in FIG. 7, an oil-impregnated material 63 is attached outside the turning device 62 at both ends of the slide block 61, and the oil-impregnated material 63 comes into contact with the surface of the rolling groove in the linear guide way 64. Since the lubricating oil contained in the oil-impregnated material 63 is applied to the surface of the rolling groove, similarly to the above-described method, this is a method of indirectly lubricating the rolling body.

However, the above two types of lubrication methods have the following drawbacks.
(1) In the above two types of lubrication systems, the lubrication system increases the length of the slide block, and the effective stroke of the linear guideway is shortened. Cannot return to the effective stroke length.

(2) The above-mentioned two types of lubrication systems lubricate the rolling groove of the linear guideway directly, and if the rolling element does not roll into the rolling groove coated with lubricating oil, it will not be lubricated and these will roll. Since the body is indirectly lubricated, the rolling oil cannot be effectively lubricated unless more lubricating oil is used, and the lubricating oil is wasted.

(3) The second type of lubrication method uses oil-impregnated material, and when the lubricant contained in the oil-impregnated material runs out, it is not possible to replenish the lubricant, and it is necessary to renew the oil-impregnated material. Otherwise, the oil-impregnated material cannot be renewed, so the production efficiency is reduced and the waste is not environmentally friendly.

  The invention of the present application made to solve the above drawbacks is provided on the side of the slide block of the linear guideway, and its main configuration is that the external shape fits the side of the slide block and the internal space is lubricated. An oil storage case that is an oil storage space for storing oil, and an oil-containing material that is installed in the oil storage case and absorbs the lubricating oil in the oil storage space and directly lubricates the rolling element. The gist of the self-lubricating module is a self-lubricating module for a linear guideway, characterized in that the lubrication efficiency is improved and the effective stroke of the linear guideway is extended.

  In the invention of the present application, the oil storage case includes a front lid and a rear lid, and a through hole is provided for the oil-containing material to communicate with the oil storage space and the rolling body. The gist of this is the self-lubricating module of the linear guideway.

  In the invention of the present application, the assembly method of the front lid and the rear lid uses an ultrasonic adhesion method, and in order to localize the self-lubricating module, there is a localization convex edge outside the through hole in the oil storage case. The gist of the present invention is the self-lubricating module for a linear guideway according to claim 2.

  The gist of the present invention is a self-lubricating module for a linear guideway according to claim 1 or 2, wherein a supplementary oil pipe is provided in the oil storage case to supplement the lubricating oil. Yes.

  The linear guideway self-lubricating module according to claim 1, wherein the oil storage case is provided with an engagement piece-like spring for fixing to the slide block by an engagement method. There is a summary.

The present invention has the following effects.
(1) Since the self-lubricating module according to the present invention employs a direct lubrication system, it is possible to avoid waste of lubricating oil.

(2) Since the self-lubricating module according to the present invention adopts a design that does not affect the operating space of the slide block, it saves space and does not affect the effective stroke of the linear guideway, so instead of the conventional slide block, Can be used as is.

(3) The self-lubricating module according to the present invention can be conveniently supplemented in a short time when the lubricating oil in the module runs out.

(4) The self-lubricating module according to the present invention is fixed by the engagement method and does not use any screws, so that the assembly is extremely convenient.

  Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic perspective view of a linear guideway according to the present invention. In the linear guide way, the slide block 20 is installed on the slide rail 10 and moves, and in order to turn and circulate a rolling body (not shown) in the slide block 20, the linear guide way is provided at both ends of the slide block. Two turning devices 30 are attached. Then, the rolling body can circulate in the circulation, and the slide block 20 can move smoothly on the slide rail 10. In this embodiment, a self-lubricating module is installed on each side of the slide block 20, and the rolling bodies in the slide block 20 are directly lubricated.

  FIG. 2 is a schematic perspective view showing the fit between the self-lubricating module and the slide block according to the present invention. Since a plurality of lubrication recesses 22 are opened at locations avoided from the fixing screw holes 21 on the side of the slide block 20, the self-lubricating module 40 is fitted therein. One lubrication port is provided at each of the locations corresponding to the upper circulation path 23 and the lower circulation path 24 of the lubrication recess 22, and the lubrication port located in the upper circulation path 23 is the upper lubrication port 221. The lubricating port located in the flow passage 24 is the lower lubricating port 222. Then, the self-lubricating module 40 can directly lubricate the rolling bodies in the upper and lower circulation passages 23 and 24. Further, in the present invention, the self-lubricating module 40 is fixed to the slide block 20 by the engagement method, and therefore, the engagement hole 223 is formed in the lubricating recess 22 in order to engage with the self-lubricating module 40.

3 is an exploded perspective view of the self-lubricating module according to the present invention, and FIG. 4 is a perspective view of the self-lubricating module in FIG. 3 after being assembled. The self-lubricating module is composed of an oil storage case (not shown) and an oil-containing material 43, and the internal space of the oil storage case is a space for storing lubricating oil. The oil storage case includes a front lid 41 and a rear lid 42. The assembly method employs an ultrasonic adhesion method.
The oil-impregnated material 43 is installed in the oil storage case, absorbs the lubricating oil in the oil storage space, and directly lubricates the rolling element. An upper through hole (not shown) and a lower through hole 412 are formed in the front lid 41 of the oil storage case, and a stereotactic convex edge is provided outside each through hole (in the upper through hole, The upper localization convex edge 411a, and the lower through-hole 412 is the lower localization convex edge 412a). Then, the localization is convenient, and an oil seal 44 is installed in each through-hole to seal the oil storage case. Improve the effect. A supplementary oil pipe 421 is provided on the rear cover 42 of the oil storage case, and since it is not necessary to remove the self-lubricating module 40, lubricating oil can be supplemented. Therefore, it is convenient and environmentally friendly.
In order to fix the self-lubricating module 40 to the slide block 20 by fitting into the engagement holes 223 of the slide block 20, one engagement piece-like springs 422 are provided on both sides of the rear cover. The attachment / detachment of the self-lubricating module 40 becomes convenient.
The oil-impregnated material 43 in the oil storage case is provided with an upper lubricating convex edge 431 and a lower lubricating convex edge 432, and the upper and lower lubricating convex edges 431 and 432 pass through the oil seal 44 and the upper and lower through holes. Thus, the oil-impregnated material 43 connects the oil storage space and the rolling element, and directly lubricates the rolling element.

In order to more clearly describe the positional relationship between the self-lubricating module and the slide block according to the present invention, reference is made to FIG. 5 is a cross-sectional view taken along line AA in FIG.
When the self-lubricating module 40 is fixed on the slide block 20, the oil-impregnated material 43 absorbs the lubricating oil in the oil storage space composed of the front lid 41 and the rear lid 42, and Lubricating oil is guided to the upper and lower circulation passages 23 and 24 by the lubricating convex edges 431 and 432, and the rolling bodies in the lubricating oil are directly lubricated.
In order to further improve the sealing effect of the oil storage space, an oil seal 44 is installed between the upper and lower through holes and the upper and lower lubricating convex edges. Further, in order to prevent leakage of the lubricating oil in the oil storage space, the supplementary oil pipe 421 is provided with one screw 45, and when the lubricating oil is to be replenished, the screw 45 is loosened and removed from the supplementary oil pipe 421. Inject lubricant. The length of the supplementary oil pipe 421 may be designed so that the oil-containing material can be localized and the rolling body can be directly lubricated.
In addition, since the supplementary oil pipe 421 is provided with the oil hole 423, the lubricating oil enters the oil storage space from the oil hole 423, and at the same time, the lubricating oil is also absorbed by the oil-containing material 43. Time can be shortened.

1 is a schematic perspective view of a linear guideway according to the present invention. It is a perspective schematic diagram showing fitting of a self-lubricating module concerning the present invention and a slide block. It is a disassembled perspective view of the self-lubricating module which concerns on this invention. It is a perspective view of the state after assembling the self-lubricating module in FIG. It is sectional drawing of the AA in FIG. It is the schematic which shows the lubrication system of the conventional linear guideway. It is the schematic which shows the lubrication system of another conventional linear guideway.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Slide rail 20 Slide block 21 Fixing screw hole 22 Lubrication dent 221 Upper lubrication port 222 Lower lubrication port 223 Engagement hole 23 Upper circulation path 24 Lower circulation path 30 Circulation turning device 40 Self-lubricating module 41 Front lid 411a Upper orientation Convex edge 412 Lower through hole 412a Lower fixed convex edge 42 Rear lid 421 Supplementary oil pipe 422 Engagement spring 423 Oil hole 43 Oil containing material 431 Upper lubricating convex edge 432 Lower lubricating convex edge 44 Oil seal 45 Screw 51 Felt 52 Oil tank 53 End cover 54 Slide block 55 Rolling body 61 Slide block 62 Turning device 63 Oil-impregnated material 64 Linear guide way

Claims (5)

It is provided on the side of the slide block of the linear guideway, and its main configuration is
An oil storage case whose outer shape fits the side of the slide block and whose internal space is an oil storage space for storing lubricating oil;
A self-lubricating module of a linear guideway, which is installed in the oil storage case and includes an oil-containing material that absorbs the lubricating oil in the oil storage space and directly lubricates the rolling element,
The lubrication efficiency is improved and the effective stroke of the linear guideway extends for a long time.
Self-lubricating module for linear guideway.
The linear guideway according to claim 1, wherein the oil storage case includes a front lid and a rear lid, and a through hole is provided in order for the oil-containing material to communicate with the oil storage space and the rolling body. Self-lubricating module.
The method of assembling the front lid and the rear lid uses an ultrasonic adhesion method, and in order to localize the self-lubricating module, a positioning convex edge is provided outside the through hole in the oil storage case. The self-lubricating module for a linear guideway according to claim 2.
3. The linear guideway self-lubricating module according to claim 1, wherein a supplementary oil pipe is provided in the oil storage case to supplement the lubricating oil.
2. The self-lubricating module for a linear guideway according to claim 1, wherein an engagement piece-like spring is provided in the oil storage case for fixing to the slide block by an engagement method.

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