JP2007247779A - Circulation system for linear slide rail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circulation space with an intersection type circuit and a separation type circuit joined into one unit for effectively and equally lubricating a linear slide rail for a rolling component. <P>SOLUTION: Between the slide rail and each of the sides of two end caps joined to a slide block and a scraper set on the slide rail, the circulation space is designed for joining the intersection type circuit and the separation type circuit into one unit, to form a circulation system wherein two independent circuits exist opposing each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a linear slide rail circulation system, and in particular, is formed by a slide rail, a slide block set on the slide rail, and an end cap that joins two scrapers to roll a large number of rolling elements. In particular, the present invention relates to a circulation structure in which a cross circulation circulation path and a separation circulation circulation path are designed as one unit with respect to a circulation space to be circulated dynamically.

The linear slide rail is a mechanism that performs rolling induction.
The structure includes a slide rail, a slide block set on the slide rail, an end cap connected to both ends of the slide block, a scraper affixed to the end cap, and a slide rail and an end cap. A large number of rolling elements. Mainly, the rolling blocks are circulated while recessing up to the end cap between the slide block and the slide rail by a large number of rolling elements, and the slide block as the mounting platform can be easily moved along the slide rail, with high accuracy Linear movement can be performed.

Currently, in a known linear slide rail, a circulation recess used for rolling circulation of a large number of rolling elements is a separation type (rolling ball) as shown in FIG. 1 (separation type) and FIG. 2 (crossing type). There are two types: crossing type (rolling column).
Regardless of the type of circulation recess of the separation type (rolling ball) or the crossing type (rolling column), the circulation flow paths are independently independent and have four independent circulation systems.
Therefore, there are the following drawbacks or inconveniences in the production and use of various linear slide rails.
(1) Installation of rolling elements is inconvenient.
All of the above linear slide rails have four independent circulation systems, so the ball filling operation must be performed four times during production.
(2) The rolling element lubrication is unbalanced.
In the above-mentioned linear slide rail, it is relatively difficult to lubricate four independent circulation systems at the same time, and due to gravity, more lubricating oil accumulates in the lower rolling elements than usual, and the upper and lower Oil quantity becomes imbalanced.
(3) The force received by the rolling elements is imbalanced.
When the linear slide rail described above receives a load in the positive direction, the force received by the upper and lower rolling elements becomes unbalanced.

The present invention has been made in view of the drawbacks of the conventional linear slide rail circulation system described above, and the main object of the present invention is to provide a slide rail, a slide block set on the slide rail, and By providing a circulation space that is designed with an integrated cross-circulation path and a separate circulation path between the two sides of the end cap where the two scrapers are joined, two independent linear slides with mutually opposing paths It is to provide a rail circulation system.
The next object of the present invention is to provide a circulation space in which the cross-type circulation path and the separation-type circulation path are integrally coupled in the end cap, and further, a simple oil passage design is incorporated into the end cap. An object of the present invention is to provide a linear slide rail circulation system capable of effectively and balancedly lubricating a linear slide rail of a rolling part.

  In order to achieve the above-described problems, a linear slide rail circulation system according to the present invention includes an end cap body, a cap plate, and an outer end cap, and upper and lower recess passages on both sides of the end cap body, respectively. And an oblique recess passage, and a U-shaped recess passage corresponding to an intersection with the oblique recess passage, and upper and lower (separate) corresponding to the upper and lower recess passage orientations according to the cap plate. A recess portion is provided, and the oblique recess portion is closed in correspondence with the oblique recess passage direction, and the scraper in the U-shaped recess passage corresponding to the end cap body of the outer end cap is sealed. A cross-type circulation recess path and a separate circulation recess path are formed on both sides of the end cap, respectively. When installing the end caps at both ends of each set to the slide rail slides blocks having the same structure, the circulation path of the end cap Teisu conflicting orientation and circulation paths of the other end cap. That is, when a large number of rolling conductors flow from the upper recess passage of the end cap to the other end cap, rotation from top to bottom occurs through the U-shaped recess passage of the other end cap, and the lower recess of the end cap occurs. Flows to the passage, and further flows to the oblique recess passage of the other end cap, and the rotational flow from the bottom to the top is generated by using the oblique recess passage of the other end cap, and a large number of rolling elements are re-applied to the end. The cap is circulated to the recess passage on the cap, and the rolling circulation is continuously repeated infinitely between the slide block and the slide rail.

That is, the linear slide rail circulation system according to the first invention of the present application is a linear slide rail circulation system, and includes a slide rail, a slide block and a slide set on the slide rail.・ By forming an upper loop space and a lower loop space between both sides of the two end caps assembled at both ends of the block, a large number of rolling elements are circulated and the upper recess passage is formed in one of the end caps. And a lower recess passage, and an oblique recess passage and a U-shaped recess passage are provided on the other side, thereby forming a circulation system in which a cross-type circulation recess passage and a separation-type circulation recess passage are integrally coupled. And
In the linear slide rail circulation system according to the second invention of the present application, in the first invention, the end cap is constituted by an end cap body and a cap plate, and an upper recess passage is formed on one of the end caps. A lower recess passage is provided, the other is provided with an oblique recess passage and a U-shaped recess passage, and one of the cap plates has an upper recess passage corresponding to the end cap body and an orientation of the lower recess passage. A recess portion and a lower recess portion are provided, and an oblique recess portion is provided in the direction of the oblique recess passage corresponding to the end cap body.
The linear slide rail circulation system according to a third aspect of the present invention is the linear slide rail circulation system according to the second aspect, wherein the end cap further includes an outer end cap to facilitate the insertion of a large number of rolling elements. A cap is used to seal the rear side of the piercing space of the U-shaped recess passage of the end cap body.

By designing the above-described end cap according to the present invention so that the cross-type circulation path and the separation-type circulation path are integrated, there are the following advantages in the production and use of the linear slide rail as compared with the prior art. ,
(1) In the present invention, since there are only two independent circulation systems, the operation of inserting the rolling elements is only twice, and the assembly efficiency in production can be effectively increased.
(2) In the present invention, since there are only two independent circulation systems, a large number of rolling elements in the same circulation system can be made uniform by simply circulating a large number of rolling elements up and down and adopting a simple oil passage design. Can be lubricated.
(3) The upper and lower multi-stage rolling elements of the present invention can exchange and circulate, the force received by the large number of rolling elements is uniform, and the number of circulating rolling elements can be increased. The reliability of the slide rail can be improved effectively.

This will be described with reference to FIGS.
1 is a circulation system of a linear slide rail according to the present invention, mainly comprising a slide rail 1, a slide block 2 set on the slide rail 1, and two end caps provided at both ends of the slide block 2 3, two scrapers 4 joined to the end cap 3, and a large number of rolling elements 5.

  Between the slide rail 1 and both sides of the slide block 2 and the end cap 3, there are upper and lower loop spaces (not shown in the figure, as shown in FIG. 5), and a large number of rolling elements 5 are infinite. Roll to circulate.

FIG. 6 is an exploded view of parts of the end cap of the present invention.
The main feature of the present invention is that the end cap 3 described above is constituted by an end cap body 31, a cap plate 32 and an outer end cap 33.

One end cap body 31 is provided with an upper recess passage 311 and a lower recess passage 312 separated from each other.
The other end cap body 31 is provided with an oblique recess passage 313 and a U-shaped recess passage 314 that intersects with the oblique recess passage, and extends from the U-shaped recess passage 314 toward the scraper 4. It shows a state of penetrating to the rear side so that a large number of rolling elements 5 can be easily inserted.

  Further, an upper recess passage 311, an oil passage 315 that can be connected to the oblique recess passage 313, and an oil hole 316 provided between the oil passages 315 are provided on the surface from the end cap body 31 toward the slide block 2. Thus, the lubricating oil is introduced into the upper recess passage 311 and the oblique recess passage 313 from the oil hole 316 through the oil passage 315.

  One of the cap plates 32 is provided with an upper recess portion 321 and a lower recess portion 322 (in a state separated from each other) corresponding to the orientation of the upper recess passage 311 and the lower recess passage 312 of the end cap body 31. In addition, an oblique recess 323 is provided corresponding to the orientation of the oblique recess passage 313 of the end cap body 31.

The outer end cap 33 is for sealing the rear side of the end cap body 31 that protrudes from the U-shaped recess passage 314, and an oblique recess portion corresponding to the orientation of the U-shaped recess passage 314 of the end cap body 31. Is forming.
FIG. 7 is a combined cross-sectional view of the end cap according to the present invention.

  As an implementation method for assembling and operating the end cap body 31 constituting the end cap 3 and the cap plate 32 and the outer end cap 33 on the linear slide rail, first, the same two end cap bodies 31 are respectively used. Secure to both ends of slide block 2. Next, two identical end cap bodies 31 are respectively connected to the upper recess passage 311, the upper recess portion 312, and the upper recess portion 321 of the cap plate 32 corresponding to the oblique recess passage 313, the lower recess portion 322, and the oblique type. The recess 323 is closed and fixed.

  At this time, the U-shaped recess passages 314 of each end cap body 31 are located just below the rolling passage 21 above the slide block 2 and the slide rail 1 and the slide block 2 at both front ends. It corresponds to the position of the rolling space (as shown in FIGS. 6 and 8), and both ends after the cap plate 32 and the end cap body 31 are joined are in a crossed state and a separated state respectively. Forming a recess and interconnecting the intersecting recess position of one cap plate 32 and end cap body 31 with the separate recess position of the other cap plate 32 and end cap body 31;

  On the other hand, by separating the separated recess position of one cap plate 32 and the end cap body 31 with the intersecting recess position of the other cap plate 32 and the end cap body 31, a linear slide, On both sides of the rail, a loop space in which the intersecting shape and the separating shape are integrally coupled is formed.

  Finally, after putting a large number of rolling elements 5 into the penetration space formed by the U-shaped recess passage 314 of the end cap body 31, the outer end cap 33 is sealed and fixed, whereby the assembly of the end cap 3 is completed.

FIG. 8 is a schematic operation diagram in which the end cap according to the present invention is combined with a linear slide rail.
The upper recess passages 311, the lower recess passages 312, and the oblique recess passages 313 on both sides of the end cap body 31 described above are the upper and lower (separated state) recess portions 321 and 322 of the cap plate 32 and the oblique type. By closing the recess portion 323 and sealing the outer end cap 33 corresponding to the U-shaped recess passage 314 of the end cap body 31, a cross-type circulation recess passage and a separation-type circulation recess passage are respectively provided on both sides of the end cap 3. Prepare. Further, after two end caps 3 having the same structure are assembled to both ends of the slide block 2 set on the slide rail 1, the circulation recess path of one end cap 3 is the circulation recess of the other end cap 3. It is formed in a direction opposite to the path.

  That is, when a large number of rolling elements 5 flow from the upper recess passage 311 of the end cap 3 to the other end cap 3, the rolling elements 5 circulate from the top to the bottom via the U-shaped recess passage 314 of the other end cap 3. Flow occurs and flows to the lower recess passage 312 of one end cap 3. Furthermore, it flows into the oblique recess passage 313 of the other end cap 3, and the circulation flow from the bottom to the top is generated by the oblique recess passage 313 of the other end cap 3, and a large number of rolling elements 5 are again returned to the end cap 3. Is returned to the upper recess passage 311, and infinite rolling circulation is continuously repeated between the slide block 2 and the slide rail 1.

  Further, in the present invention, in order to give more manufacturing forms to each structure of the end cap 3, the end cap body 31, the cap plate 32 and the outer end cap 33 have different forms as shown below ( Example).

(1) As shown in FIG. 9, the oil path 315 of the end cap body 31 may be replaced with a cap plate 32. That is, the oil passage 324 is opened on the cap plate 32. By connecting this oil passage 324 to the upper recess portion 321 and the oblique recess portion 323, the lubricating oil introduced from the outside passes from the oil hole 316 of the end cap body 31 through the oil passage 324 of the cap plate 32. It flows to the upper recess part 321 and the oblique recess part 323, and can be introduced into a large number of rolling elements 5.

(2) As shown in FIG. 10, in addition to the above-described integral molding design for the upper and lower recess portions 321 and 322 and the oblique recess portion 323 of the cap plate 32, It is also possible to design the upper and lower recess portions 321 and 322 and the oblique recess portion 323 separately separately and assembled to the cap plate 32 by combining separate and independent structures.

(3) As shown in FIG. 11, with respect to the upper recess passage 311 or the lower recess passage 312 of the end cap body 31, a penetration portion 317 is opened on the rear side of the scraper 4, and the outer end cap 33 is disposed. Further, a recess portion 332 can be provided corresponding to the orientation of the penetration portion 317, and the recess portion 332 and the oblique recess portion 331 can be integrally connected by the connecting portion 333.

(4) As shown in FIG. 12, with respect to the upper recess passage 311 or the lower recess passage 312 of the above-mentioned end cap body 31, a penetration portion 317 is opened on the rear side of the scraper 4, and the outer end cap 33 is disposed. Further, a recess portion 332 can be provided corresponding to the orientation of the penetration portion 317, and the recess portion 332 and the oblique recess portion 331 can be separately manufactured.

  The above detailed description is a specific description of the possible embodiments of the present invention, but the examples are not intended to limit the scope of the claims of the present invention and are made without departing from the technical spirit of the present invention. All such equivalent effects or modifications are intended to be included within the scope of the present invention.

It is the schematic (the 1) of the conventional linear slide rail. It is the schematic (the 2) of the conventional linear slide rail. It is the combination external view of the linear slide rail of this invention. It is a perspective exploded view of the linear slide rail of the present invention. It is a plane sectional view of the linear slide rail of the present invention. It is a component exploded view of the end cap of this invention. It is a combination sectional view of the end cap of the present invention. 3 is a schematic operation diagram of the end cap of the present invention combined with a linear slide rail. 2 is a schematic diagram of another embodiment of the present invention. Fig. 4 is a schematic diagram of another embodiment of the present invention. Fig. 4 is a schematic diagram of still another embodiment of the present invention. Fig. 4 is a schematic diagram of still another embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 .... Slide rail 2 ... Slide block 21 ... Rolling passage 3 ... End cap 31 ... End cap body 311 ··· Upper recess passage 312 ··· Lower recess passage 313 ··· Diagonal recess passage 314 ··· U-shaped recess passage 315 ··· Oil passage 316 ··· Oil hole 317 ··· ··· Penetration portion 32 ··· Cover plate 321 ··· Upper recess portion 322 ··· Lower recess portion 323 ··· Diagonal recess portion 324 ··· Oil passage 33 ··· · Outer end cap 331 ··· Diagonal recess portion 332 ··· Recess portion 333 ··· Connection portion 4 ··· Scraper 5 ··· Rolling element

Claims (3)

A linear slide rail circulation system,
By forming an upper loop space and a lower loop space between the slide rail and both sides of the slide block set on the slide rail and the two end caps assembled at both ends of the slide block, respectively. Rolling and circulating a large number of rolling elements,
An upper recess passage and a lower recess passage are provided on one of the end caps,
The other is provided with an oblique recess passage and a U-shaped recess passage, thereby forming a circulation system in which a cross-type circulation recess passage and a separation-type circulation recess passage are integrally coupled.
Linear slide rail circulation system. The end cap is composed of an end cap body and a cap plate, and an upper recess passage and a lower recess passage are provided in one of the end caps, and an oblique recess passage and a U-shaped recess passage are provided in the other end cap. One of the cap plates is provided with an upper recess portion and a lower recess portion in the orientation of the upper recess passage and the lower recess passage corresponding to the end cap body, and in the orientation of the oblique recess passage corresponding to the end cap body. 2. The linear slide rail circulation system according to claim 1, further comprising an oblique recess. The end cap further includes an outer end cap, and the rear end of the piercing space of the U-shaped recess passage of the end cap body is sealed by the outer end cap so that a large number of rolling elements can be easily inserted. The linear slide rail circulation system according to claim 2, wherein the linear slide rail circulation system is characterized.

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