KR20180064627A - Linear motion guide and fabrication method for the same - Google Patents

Linear motion guide and fabrication method for the same Download PDF

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Publication number
KR20180064627A
KR20180064627A KR1020160164626A KR20160164626A KR20180064627A KR 20180064627 A KR20180064627 A KR 20180064627A KR 1020160164626 A KR1020160164626 A KR 1020160164626A KR 20160164626 A KR20160164626 A KR 20160164626A KR 20180064627 A KR20180064627 A KR 20180064627A
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South Korea
Prior art keywords
track
top plate
guide
side tube
ball
Prior art date
Application number
KR1020160164626A
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Korean (ko)
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KR101954921B1 (en
Inventor
이택원
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(주)원에스티
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Priority to KR1020160164626A priority Critical patent/KR101954921B1/en
Priority to PCT/KR2017/012286 priority patent/WO2018105893A1/en
Publication of KR20180064627A publication Critical patent/KR20180064627A/en
Application granted granted Critical
Publication of KR101954921B1 publication Critical patent/KR101954921B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
    • F16C29/0604—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section
    • F16C29/0607—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section of parts or members for retaining the rolling elements, i.e. members to prevent the rolling elements from falling out of the bearing body or carriage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0614—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only
    • F16C29/0621—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load in essentially two directions, e.g. by multiple points of contact or two rows of rolling elements
    • F16C29/0623—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load in essentially two directions, e.g. by multiple points of contact or two rows of rolling elements with balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
    • F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
    • F16C29/0638—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

The present invention relates to a linear motion guide, and more particularly to a linear motion guide, which supplies sufficient oil to a ball using a porous material containing oil as a ball cage, and improves the assembling efficiency by integrally forming a side tube or a top plate on the in track On the other hand, it is a linear motion guide and assembly method that can improve the assembly quality and enable quiet operation.

Figure P1020160164626

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a linear motion guide,

The present invention relates to a linear motion guide, and more particularly to a linear motion guide, which supplies sufficient oil to a ball using a porous material containing oil as a ball cage, and improves the assembling efficiency by integrally forming a side tube or a top plate on the in track On the other hand, it is a linear motion guide and assembly method that can improve the assembly quality and enable quiet operation.

In general, the linear motion guide is for guiding an accurate linear movement, and satisfies the requirements of high accuracy, high speed, miniaturization, and the like for components that perform reciprocating motion in various apparatuses such as various robots, semiconductor manufacturing apparatuses, inspection apparatuses, .

Recently, in addition to performance enhancement such as high precision and high speed, ease of maintenance is emphasized, and a linear motion guide for guiding more smoothly from above the guide rail is demanded.

A sufficient amount of oil can not be supplied to the balls in contact with the guide rails in the prior art, and vibrations are generated due to contact between the balls and the guide rails, resulting in difficulty in quiet operation and durability.

In addition, when assembling a linear motion guide, a separate side tube or a top plate is assembled to a track, which takes a lot of time and effort to assemble it.

Further, when the assembly failure occurs, for example, steps are generated between the ball return portion and the side tube, and vibrations or noise are generated.

Korean Patent No. 10-0865000 Korean Patent No. 10-0613203 Korean Patent No. 10-1540682 Korean Patent No. 10-1637460 Korean Patent No. 10-1600521 Korean Patent Publication No. 10-2016-0068705 Korean Patent Publication No. 10-2016-0070041

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a ball cage that uses a porous material containing oil to supply sufficient oil to a ball and integrally form a side tube, a top plate, And also to provide a linear motion guide and an assembling method capable of quiet operation by improving the assembling quality.

It is to be understood, however, that the intention is not to limit the scope of the invention as defined in the appended claims, but that the invention may also be embodied in other specific forms without departing from the spirit or essential characteristics thereof. will be.

In order to attain the above object, the present invention provides a motorcycle comprising: a block movably coupled to a guide rail; a pair of in-tracks each provided on both longitudinal sides of the block; Wherein the ball retainer comprises a plate-like retainer body having a ball mounting hole formed therein, the ball mounting hole being formed in the retainer main body so as to be spaced apart from the retainer main body in the longitudinal direction Wherein a spacer is provided between the ball mounting holes, the spacer is protruded in the vertical direction of the retainer main body, a facing surface is in contact with the ball with a ball mounting hole, which is a side surface in the vertical direction, Wherein a protrusion of the spacer is formed with a groove to contain oil, and the retainer body has a height And provides a linear motion guide which is eccentric by a certain distance from the direction center to the ball return direction.

The unloading winding hole and the load winding hole formed in the in track are symmetrical with respect to the height direction center line of the ball return portion provided therebetween and the height direction center line of the ball returning portion is inclined at a predetermined angle, Is formed away from the guide rail.

In this case, the side tubes, the top plate, and the side channels are integrally formed in the pair of in-tracks in mutually opposing directions, the side tubes are in the shape of a tube and arranged in the longitudinal direction of the block, The top plate is in the shape of a plate and is provided between the side tubes, the side channel is provided on the lower side of the top plate, and when the in track is coupled to both longitudinal sides of the block, The side tubes, the top plate, and the ends of the side channels provided in each in track are coupled to each other.

The side tubes may include a first side tube and a second side tube integrally provided on the in track and disposed to face each other and opposed to each other so that a specific load portion of the ball cage moves inside, A second side tube body having a hollow tube shape; an incision part formed in the longitudinal direction outside the second side tube body and having a specific width; and a shape having an increased width at one side of the incision part end And a flat portion formed on the other side of the end portion of the second side tube body, wherein the first side tube includes a first side tube body having a hollow tube shape and a second side tube body disposed outside the first side tube body A cut portion formed in the longitudinal direction and having a specific width; and a pair of extensions extending in the longitudinal direction on both sides of the cut end portion and inserted into the enlarged portion And a cover portion extending in the longitudinal direction on the other side of the end portion of the second side tube main body and covering the flat portion, wherein one end of the tip end portion is disposed in the same line as both side surfaces of the cut- A pair of straight portions are formed on the other side of the tip portion and extend in the longitudinal direction at an end of the first side tube main body and meet the end portion of the straight portion and are inclined at the same angle as the diameter- .

The top plate includes a first top plate and a second top plate integrally provided on the in track and arranged to face each other, the first top plate includes a first top plate body in the shape of a plate, Wherein the second top plate comprises a second top plate body in the shape of a plate, and a second top plate main body in the form of a plate, and the second top plate main body comprises an insert bar projecting from the first top plate body toward the second top plate and an insert hole formed on the side of the insert bar, Wherein the insertion bar of the second top plate is inserted into the insertion hole of the first top plate and the insertion bar of the second top plate is inserted into the insertion hole of the first top plate, The insertion hole of the first top plate is inserted into the insertion hole of the top plate.

The side channels may include a first side channel and a second side channel that are integrally provided on the in track and are disposed to face each other and extend in a specific cross section, and the first side channel and the second side channel An insertion hole is formed on one side of the opposite side of the insertion bar, the insertion bar protruding in the longitudinal direction and the other side inserted with the insertion bar.

In this case, a pair of out tracks are provided outside the pair of in-tracks, a guide is detachably installed between the pair of out tracks, and the guide is made of a porous resin material containing oil And an insertion hole formed on both sides of the body in the longitudinal direction of the guide body, and an insertion bar protruding in the guide direction from the outtrack is inserted into the insertion hole.

In this case, the guide further includes a protrusion protruding in the longitudinal direction from one side of the insertion hole, wherein an insertion groove is formed in the in track, and the protrusion is inserted into the insertion groove.

According to another aspect of the present invention, there is provided a method of assembling the linear motion guide, comprising the steps of: coupling a first in track to one longitudinal side surface of a block to form a side tube and a top plate integrally formed on the first in track, Wherein the guide is inserted into the insertion groove of the first in-track so that the guide is installed on the first in-track, the first in-track is coupled to the first in-track, 1 out-track is inserted into the first out-track, the first seal is attached to the first out-track, and the first end cap is coupled to the first out-track, and the first end cap A side tube and a top plate integrally formed on the second in track and a side channel are formed on the lower side of the block, Assembled first track and a side channel of the first in-track, and a guide provided on the pre-assembled first in-track is installed on the second in-track, The first and second end tracks being coupled to the first and second outcaps, respectively, and the first and second endcaps being coupled to the first and second outcaps, respectively.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It is to be understood that the technical terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Also, the technical terms used herein should be interpreted in a sense generally understood by a person skilled in the art to which the present invention belongs, unless otherwise defined in this specification, and it should be understood that an overly comprehensive It should not be construed as a meaning or an overly reduced meaning.

Furthermore, the singular forms " a " as used herein include plural referents unless the context clearly indicates otherwise. In the present application, the term "comprising" or "comprising" or the like should not be construed as necessarily including the various elements or steps described in the specification, Or may include additional components or steps, and should be construed as meaning and concept consistent with technical thought.

According to the present invention as described above, sufficient oil is supplied to the balls to improve quietness and durability, and a side tube or a top plate is integrally formed on the in track, thereby improving the assembly efficiency and improving the assembling quality. It is effective.

1 is an exploded perspective view of a portion of a linear motion guide according to an embodiment of the present invention.
2 is an exploded perspective view illustrating a linear motion guide according to an embodiment of the present invention.
3 is a front view showing an in track constituting a linear motion guide according to an embodiment of the present invention.
4 is a partially separated perspective view illustrating a ball retainer constituting a linear motion guide according to an embodiment of the present invention.
FIG. 5 is a partial cross-sectional perspective view illustrating an insertion hole in which a block and a side tube are separated from a block constituting a linear motion guide according to an embodiment of the present invention, and a part of the block is cut.
6 is a front view of a block constituting a linear motion guide according to an embodiment of the present invention.
FIGS. 7 and 8 are perspective views of an in track of a linear motion guide and side tracks, a top plate, and a side tube formed integrally with the in track according to an embodiment of the present invention.
9 and 10 are a partially cutaway perspective view and an exploded perspective view of an in track and an out track, respectively, to illustrate a guide of a linear motion guide according to an embodiment of the present invention.
11 is an exploded perspective view showing only the outtrack and the guide separated to show the guide of the linear motion guide according to the embodiment of the present invention.
12 and 13 are exploded perspective views illustrating a process of assembling a linear motion guide according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

In addition, the following embodiments are not intended to limit the scope of the present invention, but merely as exemplifications of the constituent elements set forth in the claims of the present invention, and are included in technical ideas throughout the specification of the present invention, Embodiments that include components replaceable as equivalents in the elements may be included within the scope of the present invention.

The linear motion guide 10 according to an embodiment of the present invention includes a block 800 that is movably coupled to a guide rail GR as shown in FIGS. 1 to 4, A pair of in-track tracks 700 provided on both sides of the track 700 and a pair of in-tracks 700 and a plurality of balls 700, which are inserted into and unloaded from the unloading winding hole NH and the load winding hole LH of the in- And a retainer (100). An outcart 600, a seal OT and an end cap ET are provided outside the in track 700, respectively. The out track 600, the seal OT and the end cap ET are also provided in the prior art, and a detailed description and illustration thereof will be omitted.

The ball retainer 100 is composed of a plate-like retainer main body 110 having a plurality of ball mounting holes 130 spaced apart in the longitudinal direction thereof. The ball mounting holes 130 are formed in the retainer main body 110 so as to be spaced apart from each other in the longitudinal direction.

Between the ball mounting holes 130, a spacer 120 is provided. The spacer 120 is provided integrally with the retainer main body 110. The spacer 120 is vertically protruded from the central portion of the retainer main body 110 in the width direction of the retainer main body 110 and has a surface facing the ball mounting hole 130, B). The surface of the spacer 120 facing the ball B is spherical and concave.

 The ball retainer (100) uses a porous material containing oil to supply sufficient oil to the ball (B). Conventionally, as described above, it is difficult to supply sufficient oil to the ball, so that vibration or the like is generated. The present invention solves this problem and provides a sufficient amount of oil to the ball (B) by using the porous spacer (120) containing oil.

A recessed portion 121 is formed in the protruded portion of the spacer 120 to contain oil. The oil contained in the recess 121 may penetrate into the porous spacer 120 to extend the oil supply time. In the embodiment shown in FIG. 4, the spacer 120 is formed in a "+" shape so that the recess 121 is formed on the upper, lower, left, and right sides of the spacer 120.

The retainer main body 110 is eccentric by a certain distance L1 in the height direction center C2 of the spacer 120 in the direction of the ball return portion BR. That is, when the center C1 in the thickness direction of the retainer main body 110 is eccentrically close to the ball return portion BR, it is possible to reduce the possibility that the spacing distance from the guide rail GR increases and interference occurs. This is explained below again.

5 and 6, the block 800 includes a block body 810 having a "?" Shape. An insertion hole 820 into which the side tube 300 of the in track 700 is inserted is formed in a downwardly extending extension portion 811 of the block body 810. The insertion hole 820 is formed through the block body 810 in the longitudinal direction of the block body 810.

Inside the extended portion 811 extending downward from both sides of the block body 810, an insertion groove 830 penetrating in the longitudinal direction is formed.

The insertion holes 820 are formed in a plurality of vertically spaced apart angular extensions 811 of the block 800 and the insertion grooves 830 are also spaced apart in the vertical direction.

A guide 500, which will be described later, is provided inside the extending portion 811 between the upper and lower directions of the insertion groove 830.

The vertical spacing of the two insertion holes 820 formed in the one side extension 811 of the block body 810 is wider than the vertical spacing of the two insertion slots 830, The insertion groove 830 is formed between the two insertion holes 820.

The first side tube 310 and the second side tube 320 of the track 700 on both sides in the longitudinal direction when the in track 700 is coupled to the block 800 as shown in Figures 3 and 7, Is inserted into the insertion hole (820) of the block (800).

The first side tube 310 and the second site tube 320 inserted into the insertion hole 820 of the block 800 communicate with the non-load winding hole NH of the in track 700, 800 are in communication with the load winding hole LH of the in track 700. [

The ball retainer 100 passing through the load winding hole LH is exposed to the guide rail GR. The ball retainer 100 passing through the unloaded winding hole NH moves in the side tube 300.

The ball retainer 100 passes through the unloading winding hole NH and the load winding hole LH through the ball return portion BR of the in track 700. [ The ball return portion BR is in the shape of a roller which is curved and protruded outside the center portion as shown in the figure.

The unloaded winding hole NH and the load winding hole LH of the present invention are symmetrical to the center line CL in the height direction of the ball return portion BR provided therebetween. At this time, the height direction center line CL of the ball return portion BR is formed to be inclined at a certain angle. The load winding hole LH is formed to be away from the guide rail GR and the retainer main body 110 passing through the load winding hole LH is also moved away from the guide rail GR to reduce the fear of interference .

In the embodiment shown in FIG. 3, the unloaded winding hole NH and the load winding hole LH extend in the longitudinal direction on the left and right sides of the in track 700, respectively, and are arranged in pairs in the vertical direction.

And the ball return portion BR disposed on the upper side is disposed so as to be inclined such that the inside is downward. As a result, the load hole LH is inclined downward of the in track 700 and is moved away from the guide rail GR.

And the ball return portion BR disposed on the lower side is arranged to be inclined such that the inside is upward. As a result, the load winding hole LH is inclined upwardly of the in track 700 and moves away from the guide rail GR.

The retainer main body 110 of the ball retainer 100 passing through the unloaded winding hole NH and the load winding hole LH is disposed so as to be close to the ball return portion BR as described above. That is, when the retainer main body 110 is disposed close to the ball return portion BR, the retainer main body 110 is separated from the guide rail GR. Therefore, the possibility that the retainer main body 110 interferes with the guide rail GR is reduced.

The side tubes 300, the top plate 200, and the side channels 400 are integrally formed with the pair of in-tracks 700 in the directions opposite to each other, as shown in FIGS. 1 to 8. In the case of the embodiment shown in FIGS. 7 and 8, the tracks 700 are disposed on both sides of the block 800, and the side tubes 300 and the top plate 200 and a side channel 400 are integrally formed.

The ball return portion BR is concaved on the outer side of the opposite side to which the side tube 300 extends, and is curved outwardly convexly. A through hole is formed in a portion where the side tube 300 described later is formed and communicated into the side tube 300. The through hole is located on both sides of the ball return portion BR.

In the case of the related art, since the side tube, the top plate, and the side channel are respectively assembled to the in-track, it takes a lot of time and effort to assemble, and when assembling an unskilled worker, Or the durability is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to solve the above problems by providing the side tube 300, the top plate 200 and the side channel 400 integrally formed with the in track 700 to improve the efficiency of assembly, High assembly quality can be ensured.

The side tube 300 is tubular as shown and extends in the longitudinal direction of the block 800 and is provided at both ends of the in track 700 in the width direction. The top plate 200 is in the shape of a plate and is provided between the side tubes 300. The side channels 400 are provided on the lower side of the top plate 200.

When a pair of in-tracks 700 are assembled on both side surfaces in the longitudinal direction of the block 800, the side tubes 300 and the top plate 200 provided in each in-track 700 and the side channels 400 are coupled to each other. That is, when a pair of in-tracks 700 are assembled on both sides of the block 800, the side tubes 300, the top plate 200, and the ends of the side channels 400, .

With this configuration, the assembly efficiency and the assembly quality can be improved as described above.

The side tube 300 includes a first side tube 310 and a second side tube 320 integrally provided on the in track 700 and disposed to face each other. A portion of the ball retainer 100 which does not contact the guide rail GR moves within the first side tube 310 and the second side tube 320.

The second side tube 320 includes a hollow tube-shaped second side tube body 321, a cut-out portion 322 formed in the longitudinal direction outside the second side tube body 321 and having a specific width, And a flat portion 324 formed on the other side of the end portion of the second side tube body 321. The flat portion 324 is formed on the other side of the end portion of the second side tube body 321, ).

The ball retainer 100 moves to the second side tube 320 and the widthwise ends 111 of the ball retainer main body 110 (see FIG. 4) are inserted into the cutout portion 322 of the second side tube 320, Is slidably inserted. The same is applied to the first side tube 310 described below, and a duplicate description will be omitted.

7, a cut-out portion 322 is formed on the outer side of the second side tube body 321 in the longitudinal direction and a necked portion 323 is formed on the end of the first side tube 310 in the direction of the first side tube 310, (322). A flat portion 324 is formed on the right side of the enlarged diameter portion 323. The second side tube body 321 has a tubular shape, and the outer side has a specific curvature. A portion of the outer side surface of the second side tube body 321 is cut to form a flat portion 324.

The first side tube 310 also has a hollow tube-shaped first side tube body 311 and a cutout 312 formed in the first side tube body 311 in the longitudinal direction and having a specific width. . A pair of tip portions 313 extending in the longitudinal direction and inserted into the enlarged diameter portion 323 are formed on both sides of the end portion of the cutout portion 312.

The tip portion 313 includes a pair of straight portions 313a and an inclined portion 313b. The straight portion 313a is disposed on the same line as both sides of the cutout portion 312 and extends in the longitudinal direction. The inclined portion 313b extends in the longitudinal direction at an end portion of the first side tube body 311 and meets an end portion of the straight portion 313b and extends in the radial direction of the enlarged diameter portion 323 As shown in Fig.

The pointed portion 313 has a pointed shape by the straight line portion 313a and the inclined portion 313b and the both cutout portions 312 and 322 are positioned on the same straight line. The tip portions 313 closely contact with each other and are assembled into one side tube 300 as a whole.

 At the end of the second side tube body 321, a cover part 314 extends in the longitudinal direction to cover the flat part 324. The outer side surface of the cover portion 314 has the same curvature as that of the first side tube body 311 and the side surface contacting with the flat portion 324 is formed flat. The cover part 314 is in close contact with the flat part 324 and the outer side surface is assembled with the side tube 300 having the same curvature as the first side tube body 311 with the same curvature.

1 to 8, the top plate 200 includes a first top plate 210 and a second top plate 220 integrally formed on the in track 700 and disposed to face each other, .

The first top plate 210 includes a first top plate body 211 having a plate shape and an insertion bar 212 protruding from the first top plate body 211 toward the second top plate 220, And an insertion hole 213 formed on one side of the insertion bar 212.

The second top plate 220 includes a plate-shaped second top plate body 221, an insertion bar 222 protruding from the second top plate body 221 toward the first top plate 210, And an insertion hole 223 formed on one side of the insertion bar 222.

The insertion bar 222 of the second top plate 220 is inserted into the insertion hole 213 of the first top plate 210 and the insertion bar 222 of the first top plate 220 is inserted into the insertion hole 223 of the second top plate 220. The insertion bar 212 of the top plate 210 is inserted.

That is, when the in track 700 is assembled on both sides of the block 800, the first top plate 210 and the second top plate 220 integrally formed with the in track 700 are coupled to each other.

As shown in FIGS. 1 to 8, the side channel 400 includes a first side channel 410 and a second side channel 410, which are integrally provided in the in track 700 and extend in a specific cross section, And a side channel 420.

One side of the side surface of the first side channel 410 and the side surface of the second side channel 420 is formed with an insertion hole through which the insertion bar protrudes in the longitudinal direction and the other side inserts the insertion bar. In the embodiment shown in FIG. 8, two first side channels 410 and a second side channel 420 are integrally provided in a pair of in-tray 700. An insertion bar 430 is formed in one side channel of the pair of first side channels 410 and an insertion hole 440 is formed in the other side channel. And are formed opposite to the pair of second side channels 420 and coupled to each other.

As shown in FIGS. 1 to 11, a pair of out tracks 600 are provided outside the pair of in-tracks 700, respectively. A guide 500 is detachably mounted between the pair of outcarts 600.

The guide 500 includes a guide body 510 made of a porous material (e.g., PE) containing oil and an insertion hole 520 formed on both sides of the guide body 510 in the longitudinal direction. An insertion bar 610 is protruded from the outtrack 600 in the direction of the guide 500 so that the guide 500 is installed on the outtrack 600. The insertion bar 610 is inserted into the insertion hole 520 of the guide body 510 and the guide 500 is installed on the outtrack 600.

Of course, if the outtrack 600 is removed, the guide 500 is also separated from the outtrack 600.

The guide 500 may further include a protrusion 530 protruding in the longitudinal direction from one side of the insertion hole 520 for stable installation of the guide 500. In the in track 700, an insertion groove 710 is formed, and the projection 530 is inserted into the insertion groove 710.

Hereinafter, a method of assembling the linear motion guide of the present invention will be described with reference to the above-mentioned drawings and FIGS. 12 and 13. FIG.

The side track 300 and the top plate 200 integrally formed on the first in-track 700-1 by coupling the first in-track 700-1 to one longitudinal side of the block 800, (400) is disposed within the block (800). The guide tube 300 is inserted into the insertion hole 820 of the block 800 and the top plate 200 and the side channel 400 are inserted into the lower opening of the block 800.

The protrusion 530 of the guide 500 is inserted into the insertion groove 710 of the first in-track 700-1 so that the guide 500 is inserted into the first in-track 700-1 in the longitudinal direction Install it.

Thereafter, the first out track 600-1 is coupled to the first in-track 700-1, and the first out-track 600-1 is inserted into the insertion hole 520 of the guide 500, The guide 500 is installed on the first out-track 600-1 by inserting the guide 610. [

After the first seal OT-1 and the first end cap ET-1 are coupled to the first outboard 600, the first end cap ET -1) is arranged in the downward direction.

And the second track 700-2 is coupled to the top surface of the block 800. [ As a result, the side tube 300, the top plate 200, and the side channel 400 formed integrally with the second in-track 700-2 are inserted into the first in-track The side plate 300, the top plate 200, and the side plate 400, respectively. At this time, a guide 500 installed in the pre-assembled first in-track 700-1 is installed in the second in-track 700-2. For this purpose, The protrusion 530 of the guide 500 is inserted into the insertion groove 710 as described above.

When the first in-track 700-1 and the second in-track 700-2 are coupled to both sides of the block 800, the first in-track 700-1 and the second in- Side tubes 300 are integrally coupled to each other. The side tube 300 is formed with cutouts 312 and 322 and both end portions 111 of the ball retainer body 110 are slidably inserted into the cutouts 312 and 322.

The second out track 600-2 is then coupled to the second in track 700-2 so that the previously installed guide 500 is installed in the second out track 600-2, The fixing bar 610 of the out track 600-2 is inserted into the insertion hole 520 of the guide 500 as described above.

Then, finally, the second seal (OT-2) and the second end cap (ET-2) are coupled to the second out track (600) to complete the assembly.

As described above, according to the present invention, since the side tube 300 is integrally formed with the in track 700, the side tube 300 is disposed at the correct position in relation to the unloaded winding hole NH, Can be reduced.

Since the top plate 200 and the side channel 400 are integrally formed in the in track 700, when the in-track 700 is assembled to both sides of the block 800, The side tube 200 and the side tube 300 are coupled to each other to improve the assembling efficiency, and the assembly quality can be improved even if the operator is an unskilled worker.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand.

It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive, the scope of the invention being described in the foregoing specification is defined by the appended claims, Ranges and equivalents thereof are to be construed as being included within the scope of the present invention.

100: ball retainer 110: retainer main body
120: spacer 130: ball mounting ball
200: top plate 210: first top plate
211: first top plate body 212: insert bar
213: insertion hole 220: second top plate
221: second top plate body 222: insertion bar
223: insertion hole 300: side tube
310: first side tube 311: first side tube body
312: incision section 313:
314: cover part 320: second side tube
321; Second side tube body 322:
323: diameter portion 324: flat portion
400: side channel 410: first side channel
420: second side channel 500: guide
510: guide body 520: insertion hole
600: Out Track 700: In Track

Claims (9)

A pair of in-tracks each provided on both side surfaces in the longitudinal direction of the block, and a pair of in-track and out-of-track holes in the in-track, And a ball retainer,
Wherein the ball cage comprises a plate-like retainer main body having a ball mounting hole formed therein, the ball mounting holes being formed in the retainer main body so as to be spaced apart from each other in the longitudinal direction,
A spacer is provided between the ball mounting holes, and the spacer protrudes in the vertical direction of the retainer main body, and a face facing the ball with a ball mounting hole, which is a side face in the vertical direction,
Wherein a protruding portion of the spacer has a groove formed therein for containing oil,
Wherein the retainer main body is eccentric by a predetermined distance from the center of the spacer in the height direction toward the ball return portion. The method according to claim 1,
Wherein the unloading winding hole and the load winding hole formed in the in track are symmetrical with respect to the height direction centerline of the ball return portion provided therebetween,
Wherein the height direction centerline of the ball return portion is formed to be inclined at a predetermined angle so that the load hole is formed to be away from the guide rail. The method according to claim 1,
The side tubes, the top plate, and the side channels are integrally formed in the pair of in-tracks in mutually opposing directions,
Wherein the side tubes are tube-shaped and arranged in the longitudinal direction of the block, and are provided at both ends in the width direction of the in track,
Wherein the top plate is in the shape of a plate and is provided between the side tubes,
The side channel is provided on the lower side of the top plate,
Wherein a side track, a top plate, and a side channel of the in-track are coupled to each other when the track is coupled to both longitudinal sides of the block. The method of claim 3,
Wherein the side tubes are integrally formed with the in-track and are disposed so as to face each other, the first side tube and the second side tube being movable in a specific load portion of the ball cage,
The second side tube includes a second side tube body having a hollow tube shape, an incision part formed in the longitudinal direction outside the second side tube body and having a specific width, And a flat portion formed on the other side of the end portion of the second side tube body at a flat surface,
The first side tube includes a first side tube body having a hollow tube shape, an incision part formed in the longitudinal direction outside the first side tube body and having a specific width, And a cover portion extending in the longitudinal direction on the other side of the end portion of the second side tube body to cover the flat portion,
A pair of straight portions extending in the longitudinal direction are formed on one side of the tip end portion in the same line as the side surfaces of the cutout portion and extending in the longitudinal direction at an end portion of the first side tube body on the other side of the tip end portion, And a pair of inclined portions formed to be inclined at the same angle as the enlarged diameter portion so as to be in close contact with the enlarged diameter portion. The method of claim 3,
Wherein the top plate comprises a first top plate and a second top plate integrally provided on the in track and arranged to face each other,
Wherein the first top plate includes a first top plate body in the shape of a plate, an insertion bar protruding from the first top plate body toward the second top plate, and an insertion hole formed on the insertion bar side,
The second top plate includes a second top plate body in the shape of a plate, an insertion bar protruding in the first top plate direction from the second top plate body, and an insertion hole formed in the insertion bar side,
Wherein the insertion bar of the second top plate is inserted into the insertion hole of the first top plate and the insertion hole of the first top plate is inserted into the insertion hole of the second top plate. The method of claim 3,
Wherein the side channels are formed integrally with the in-track and are arranged to face each other and comprise a first side channel and a second side channel which are elongated in a specific cross-
And an insertion hole is formed in one side of the side surfaces of the first side channel and the second side channel in which the insertion bar protrudes in the longitudinal direction and the other side inserts the insertion bar. The method according to claim 1,
A pair of out tracks are provided outside the pair of in-tracks,
A guide is detachably installed between the pair of outcarts,
The guide includes a guide body made of a porous material containing oil and an insert hole formed in both longitudinal sides of the guide body,
And an insertion bar protruding in a guide direction from the out-track is inserted into the insertion hole. 8. The method of claim 7,
Wherein the guide further comprises a protrusion projecting longitudinally from one side of the insertion hole,
In the in track, an insertion groove is formed,
And the projecting portion is inserted into the insertion groove. A method for assembling the linear motion guide according to any one of claims 1 to 8,
A side tube, a top plate, and a side channel formed integrally with the first in track are disposed inside the block by coupling a first in track to one longitudinal side of the block,
The protrusion of the guide is inserted into the insertion groove of the first in-track to install the guide on the first in-track,
The first out-track is coupled to the first in-track, the fixed bar of the first out-track is inserted into the insertion hole of the guide, the guide is installed in the first out-track,
Coupling the first seal and the first end cap to the first out track,
The blocks are vertically erected so that the combined first end caps are disposed in a downward direction,
A side tube and a top plate integrally formed on the second in track and a side tube and a top plate of a first in track assembled on the lower side of the block, Channels, respectively,
A guide provided on the pre-assembled first in-track is installed on the second in-track,
The second out-track is coupled to the second in-track so that the previously installed guide is installed in the second out-track,
And joining the second seal and the second end cap to the second out-track.
KR1020160164626A 2016-12-05 2016-12-05 Linear motion guide and fabrication method for the same KR101954921B1 (en)

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KR1020160164626A KR101954921B1 (en) 2016-12-05 2016-12-05 Linear motion guide and fabrication method for the same
PCT/KR2017/012286 WO2018105893A1 (en) 2016-12-05 2017-11-02 Linear motion guide and assembly method

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US10900518B2 (en) * 2019-06-20 2021-01-26 Wei-Ting Lin Linear guide apparatus
US11603883B1 (en) * 2021-12-13 2023-03-14 Hiwin Technologies Corp. Roller-type linear guideway
TWI805204B (en) * 2022-01-26 2023-06-11 銀泰科技股份有限公司 Linear slide and slider assembly structure thereof
CN114623158A (en) * 2022-03-29 2022-06-14 浙江成飞自动化设备有限公司 Linear guide rail slider
CN114635918A (en) * 2022-03-29 2022-06-17 浙江成飞自动化设备有限公司 Linear guide rail sliding block with chain

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