KR101818930B1 - Linear Guid Enhanced Assemblability - Google Patents

Linear Guid Enhanced Assemblability Download PDF

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Publication number
KR101818930B1
KR101818930B1 KR1020150150551A KR20150150551A KR101818930B1 KR 101818930 B1 KR101818930 B1 KR 101818930B1 KR 1020150150551 A KR1020150150551 A KR 1020150150551A KR 20150150551 A KR20150150551 A KR 20150150551A KR 101818930 B1 KR101818930 B1 KR 101818930B1
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KR
South Korea
Prior art keywords
retainer
groove
axial direction
block
hole
Prior art date
Application number
KR1020150150551A
Other languages
Korean (ko)
Other versions
KR20170049793A (en
Inventor
권혁도
손기동
남동협
김동운
석동호
Original Assignee
(주)원에스티
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Priority to KR1020150150551A priority Critical patent/KR101818930B1/en
Publication of KR20170049793A publication Critical patent/KR20170049793A/en
Priority to KR1020170120125A priority patent/KR102270341B1/en
Application granted granted Critical
Publication of KR101818930B1 publication Critical patent/KR101818930B1/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
    • F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
    • 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
    • F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
    • F16C29/0611—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the return passages, i.e. the passages where the rolling elements do not carry 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/3806—Details of interaction of cage and race, e.g. retention, centring

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

Abstract

The linear guide with improved assemblability according to the present invention has a retainer having a laminated structure, and when assembled into a block, warping due to a block is prevented, and insertion of a rolling member is facilitated, thereby improving assembling performance of the linear guide.

Description

[0001] Linear Guid Enhanced Assemblability [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear guide having improved assemblability, and more particularly, to a linear guide having a retainer member provided in a guide block linearly moving along a guide rail.

Generally, the linear guide apparatus comprises a guide rail, a guide block, and a plurality of balls interposed between the guide rail and the guide block. On the left and right side surfaces of the guide rail, rolling grooves for rolling balls are formed. The guide block includes a main body having another transmission groove corresponding to the transmission groove, a pair of frames coupled to the main body, an end cap coupled to the front and rear of the frame, and an end seal .

Korean Patent Registration No. 10-0713151 (Apr. 24, 2007), which is filed in the prior art, discloses a linear guide device capable of securing the rigidity of a slider and reducing the number of parts. FIG. 1 is a perspective view showing a conventional linear guide device, and FIG. 2 is an exploded perspective view showing a conventional linear guide device.

1 and 2, the linear guide device includes a slider 1100 including a guide rail 1, a block composed of a main body 1200 and a return member 1360 and an end cap 1500, And a plurality of balls (3) interposed between the guide rail (1) and the slider (1100).

On both left and right side surfaces of the guide rail 1, a rolling groove 11 in which the ball 3 rolls is formed. The slider 1100 includes a block composed of a main body 1200 and a return member 1360 and an end cap 1500 disposed on the front and rear sides of the main body 1200 and coupled with the ball inner return groove 360 to form a ball return passage. And an engaging member for engaging the end cap 1500 with the main body 1200. An end seal 700 is coupled to the end cap 500. The main body 1200 includes a pair of legs 220 as a saddle shape and a table 230 connecting upper ends of the legs 220. The load ball transmission grooves 21 corresponding to the transmission grooves 11 are formed along the longitudinal direction of the main body at the right and left inner sides of the leg portions 220. In the leg portion 220, a no-load ball transmission groove 330 spaced apart from the load ball transmission groove 21 is formed to pass through the longitudinal direction of the main body.

The return member 1360 connecting the load ball transmission grooves 21 and the no-load ball transmission grooves 330 and forming the ball inner return grooves 360 is located on the left and right sides of the front and rear sides of the main body 1200, respectively. An edge portion 1362 having an angular shape is formed between the leg portion 220 and the return member 1360 and the edge portion 1362 is fitted in the end cap 1500. Grooves 1364 are formed on the front and rear sides of the leg portions 220 so that the cap protrusions 1524 of the end cap 1500 are fitted. On both side surfaces of the table 230, coupling grooves 1051 for coupling the hooks 1039 are formed. The front and rear surfaces of the table 230 are formed with outer protrusions 232 that fit into the caprises 1560 and inner protrusions 236 are formed inside the outer protrusions 232. A U-shaped oil groove 234 is formed between the outer projecting portion 232 and the inner projecting portion 236.

The end cap 1500 is disposed on the front and rear sides of the main body 1200 and has a ball outer return groove 1520 formed therein. A ball return passage is formed by the ball inner return groove 360 of the return member 1360 and the ball outer return groove 1520 of the end cap 1500. [ A groove 1038 is formed in the hook 1039 of the end cap 1500. A half-circular groove 1522 is formed at the top and bottom of the ball outer return rolling groove 1520 of the end cap 1500. An oil groove 1540 is formed in the capillary 1560 of the end cap 1500. An oil inlet 1542 is formed on the side surface of the end cap 1500 and a recess 59 is formed on the rear surface. The retainer 90 is assembled to the recess 59 of the end cap 1500. On both sides of the end cap 1500, an end seal assembly 1550 for coupling the end seal 700 is formed. The engaging protrusion 750 formed on the end seal 700 is fitted into the end seal assembling portion 1550.

There are various types of linear guide apparatuses other than the linear guide apparatuses disclosed in Korean Patent Registration No. 10-0713151 (Apr. 24, 2007), and the grooves forming the passage of the balls interposed between the blocks and the rails are arranged in one or two rows And the like. The retainer may be provided on both sides in the axial direction of the block, which is the return portion of the ball. The end seal that performs the sealing function is made of rubber material, and is separately separated into the side seal and the inner seal, and each acts as a hermetic seal.

However, in the conventional linear guide device, when the end seal assembling portion is integrally provided with the end seal assembling portion integrally serving as a retainer, structural distortion occurs due to distortion of the main body and insertion of the rolling member is not easy, There is a problem that the assemblability is poor.

Korean Registered Patent No. 10-0713151 (Apr. 24, 2007)

In order to solve such conventional problems, the present invention provides a linear guide having a multilayered structure to prevent the retainer from being deformed by a block, and to improve the ease of assembling the rolling member .

According to another aspect of the present invention, there is provided an image forming apparatus including a guide rail, a guide block movably provided along the guide rail, and a plurality of rolling elements interposed between the guide rail and the guide block, The guide block includes a block, a seal member, and a retainer provided on both sides in the axial direction of the block to form a circulation passage of the rolling member; The block is formed in an " inverted U " shape having downwardly extending portions on both sides, a downwardly extending portion is formed in the downwardly extending portion thereof with a uni-axial right hole penetrating therethrough in the axial direction, A load-receiving groove extending in the direction of the sheet;

The retainer includes a first retainer member having a first U-turn hole and a second U-turn hole formed in an axial direction and being axially penetrated, and a second retainer member covering the first U-turn hole and the second U- And a second retainer member formed with a U-shaped groove and laminated to the first retainer member; Wherein the second retainer member is provided with a protrusion protruding in a direction toward the first retainer member;

Wherein the first retainer member is formed with an extending groove side surface surrounding the first U turn hole and the second U turn hole while forming a protruding surface in a direction toward the second retainer member; Wherein the protruding portion is inserted into the side surface of the extending groove and the end of the protruding portion is in contact with the protruding surface so that the first retainer member and the second retainer member are laminated and joined together.

In this case, the protruding jaw surface has a protruding portion between the second U-turn hole and the first U-turn hole, which is more protruded than the axially outer surface of the first retainer member, The projection has a concave portion that is more concave than the axial inner surface of the second retainer member, thereby forming a groove surface;

And the connecting jaw face is provided so as to face the concave grooved surface of the protruding portion.

The linear guide with improved assemblability according to the present invention has a retainer having a laminated structure, and when assembled into a block, warping due to a block is prevented, and insertion of a rolling member is facilitated, thereby improving assembling performance of the linear guide.

1 is a perspective view showing a conventional linear guide device,
2 is an exploded perspective view showing a conventional linear guide device,
3 is a perspective view showing a linear guide with improved assemblability according to an embodiment of the present invention,
4 is a bottom perspective view showing a linear guide with improved assemblability according to an embodiment of the present invention,
5 is a bottom perspective view showing a state in which a cover is separated from a block according to an embodiment of the present invention,
6 is a perspective view showing a state in which a cover is separated from a block according to an embodiment of the present invention,
7 is a perspective view showing a state in which the support member and the cover seal are coupled to the retainer,
8 is a perspective view showing a state of engagement between a retainer member and a ball support member according to an embodiment of the present invention,
9 is a perspective view showing a block and a retainer member on one side according to an embodiment of the present invention,
10 and 11 are perspective views showing a second retainer member provided in the linear guide with improved assemblability of the present invention,
12 and 13 are perspective views showing a first retainer member provided in the linear guide with improved assemblability of the present invention.

Hereinafter, the technical structure of the linear guide with improved assemblability will be described in detail with reference to the accompanying drawings.

4 is a bottom perspective view showing a linear guide according to an embodiment of the present invention with improved assemblability, and FIG. 5 is a cross-sectional view of the linear guide according to an embodiment of the present invention. 6 is a perspective view showing a state in which a cover is detached from a block according to an embodiment of the present invention, and Fig. 7 is a perspective view showing a state where a cover is detached from a block according to an embodiment of the present invention, FIG. 8 is a perspective view illustrating a state in which a retainer member and a ball supporting member are engaged with each other according to an embodiment of the present invention. FIG. 10 and 11 are perspective views showing a second retainer member provided on the linear guide with improved assemblability according to the present invention. , 12 and 13 are a perspective view of the first retainer member is provided in the improved assembly of the present invention, the linear guide.

In the following description, the direction in which the block 110 moves along the guide rail is referred to as the axial direction. It is described that the direction from the center of the block 110 toward the both ends in the axial direction is directed to the center of the block at both ends.

3 to 13, the linear guide according to an embodiment of the present invention includes a guide rail (not shown), a guide block 100 movably provided along a guide rail, And a rolling member 101 interposed between the guide block 100 and the guide block 100.

The guide block 100 includes a block 110, a cover 120, a retainer 130, a cover seal 150, a support member 160, a first ball support member 170, (180), and a second ball supporting member (190).

A retainer 130 and a cover seal 150 are provided on both sides of the block 110 in the axial direction and covers both the retainer 130 and the cover seal 150 on both sides in the axial direction of the block 110. [ (Not shown).

 The second ball support member 190 is formed in a plate shape. The second ball supporting member 190 is provided on the block 110 to support the rolling member 101 driven by the upper load winding groove 1151.

The block 110 has a length in the axial direction and has a generally inverted " U "shape extending downward from both sides so that the inner side faces both lateral sides of the guide rail. The retainer 130 is provided on both sides in the axial direction of the block 110 and forms the return passage of the rolling member 101. The retainer 130 is provided on both sides of the block 110 in the width direction. That is, a pair of retainers 130 are symmetrically arranged in the width direction on the front side in the axial direction of the block 110, and a pair of the retainers 130 are disposed symmetrically in the width direction on the rear side, . As the retainer 130 is dividedly provided on both sides in the width direction of the block 110, it is possible to prevent the deformation phenomenon that the retainer 130 slips inward when the retainer 130 is formed. The cover seal 150 is provided on both sides of the block 110 in the axial direction, forming a substantially inverted "U "

The upper and lower unloading holes 113 and 1133, which are spaced apart from each other in the downward direction and extend downward from both sides of the block 110, . The block 110 is provided on the guide rail so as to be movable in the axial direction of the guide rail.

Two rows of load-winding grooves 115 are formed on the inner surface of the block 110 opposite to each other in the vertical direction. The load winding groove 115 extends in the axial direction and is concavely curved to abut the ball as the rolling member 101. In the following description, the upper load guide groove 115 is referred to as an upper load guide groove 1151, and the lower load guide groove 115 is referred to as a lower load guide groove 1153. In FIG. 9, reference numeral 111 denotes a fastening groove formed concavely at the upper portion of both ends in the longitudinal direction of the block 110. The coupling grooves 111 may be spaced apart from each other in the width direction and may be formed in plural numbers.

4, a second ball supporting member 190 is provided between the width direction of the upper load winding groove 1151 formed on the inner side surface of the block 110 so as to be spaced apart in the width direction, And a first ball supporting member 170 is installed at a lower end of the lower load winding groove 1153 spaced apart in the width direction to support the rolling member 101. [

The axial ends of the upper and lower unloading central holes 1131 and 1133 are inserted into the axial ends of the upper and lower unloading central holes 1131 and 1133 so that the coupling protrusions 1314 of the first retainer 131 can be inserted and engaged. A portion whose diameter is increased inward in the axial direction is formed.

The rolling member 101 moving along the upper load winding groove 1151 is guided outward and inward in the width direction by the retainer 130 to move to the upper unloading hole 1131 to form one circulation passage, The rolling member 101 moving along the lower load winding groove 1153 is guided to the outside in the width direction and inward by the retainer 130 and moves to the lower unloading center hole 1133 to form another circulation passage.

A protruding block inner surface 114 is provided in parallel with the axial direction and inward in the width direction between the upper and lower load grooves 1151 and 1153 and between the lower load groove 1153 and the lower load groove 1153.

The block inclined surface 112 is provided at the lower end of the block inner surface 114 provided at the lower end of the lower load groove 1153. [ The block inclined surface 112 is inclined downward toward the outside in the width direction. The block inclined surface 112 extends in the axial direction.

And a block downward surface 119 extending from the lower end of the block inclined surface 112 to the outside in the width direction. The block downward surface 119 extends in the axial direction and is downward.

And a block jaw surface 117 is provided extending downward from the widthwise outer end of the block downward surface 119. The block guide surface 117 extends in the axial direction and is directed in the width direction.

The retainer 130 is composed of a first retainer member 131 and a second retainer member 133 and is stacked on the block 110 in the axial direction. The first retainer member 131 and the second retainer member 133 are formed in a substantially quadrilateral shape in the form of a plate and extend in four shifting directions inward of the first and second retainer members 131 and 133 The shape of the sides is formed in a shape substantially similar to the cross-section of the inside of the block 110 in the width direction.

The first retainer member 131 is laminated on an axial end portion of the block 110, and is provided in a plate-like shape with its widthwise inner side opened.

As shown in Figs. 10 and 11, the second retainer member 133 is formed in a plate-like shape, and the shape of the side inward in the width direction is formed similar to the shape of the inner end face of the block 110. [

A second retainer projection 1331 protrudes outwardly in the axial direction on the axially outer side surface of the second retainer member 133. The second retainer protrusion 133 is inserted and engaged with the second seal groove (not shown) of the cover seal 150. The second retainer protrusions 133 are formed in a bent shape at least once.

The third seal portion insertion groove 1332 is formed in the width direction of the second retainer projection 1331. The third seal portion insertion groove 1332 is formed concavely in the axial direction. A part of the seal member 180 is inserted into the third seal portion insertion groove 1332. [ The third seal portion insertion groove 1332 extends vertically to the end portion and is provided in communication with the upper second retainer groove 1339 and the lower second retainer groove 1337. The third seal portion insertion groove 1332 is bent at least once.

An upper second retainer groove 1339 extends in the axial direction at an inner upper portion of the second retainer member 133 in the width direction. The upper second retainer groove 1339 is formed upwardly concave. A second seal portion (not shown) of the seal member 180 is inserted into the upper second retainer groove 1339. The upper second retainer groove 1339 is provided in communication with the third seal portion insertion groove 1332.

A lower second retainer groove 1337 extends in the axial lower direction of the inner lower portion of the second retainer member 133 in the width direction. The lower second retainer groove 1337 is formed upwardly concave. A second seal portion (not shown) of the seal member 180 is inserted into the upper second retainer groove 1339. The third seal portion insertion groove 1332 is formed to extend in the vertical direction and is provided in communication with the upper second retainer groove 1339 and the lower second retainer groove 1337.

11, a U-shaped groove 1335 for covering the first U-turn hole 1311 and the second U-turn hole 1313 of the first retainer member 131 and forming a circulation passage is formed in the second retainer member 133, Is formed. The second retainer member (133) is provided with a protrusion (133a) protruding toward the first retainer member (131) on the axially inner side surface. A protruding side surface 1336 is formed on the outer surface of the protruding portion 133a.

The U-grooves 1335 are vertically spaced apart from one another. The upper U-shaped groove 1335 is formed as an upper U-shaped groove 1335-1 and the lower U-shaped groove 1335 is referred to as a lower U-shaped groove 1335-3.

An end surface 1336a is formed at the axial end of the projecting side surface 1336 in the axial direction. The protruding side surface 1336 is formed in an arcuate shape on both sides in the width direction of the protruding portion 133a.

An end surface 1336a is formed at the axial end of the projecting side surface 1336 in the axial direction. A concave surface 1334a is curved concavely outwardly in the axial direction between the end surfaces 1336a neighboring in the width direction.

The inner side surface of the second retainer member 133 in the axial direction has a portion that is more concave than the inner side surface in the axial direction of the second retainer member 133, and a groove surface 1338 is formed.

The groove surface 1338 is formed so as to face up and down.

On the other hand, on the inner side surface in the axial direction of the second retainer member 133, a retainer engaging protrusion 1333 is protruded toward the first retainer member 131. The retainer engagement protrusions 1333 may be spaced apart from each other. The retainer engagement protrusion 1333 is inserted into the retainer engagement groove 1315 of the first retainer member 131 so that the second retainer member 133 is engaged with the first retainer member 131. [

12, the first U-turn hole 1311 and the second U-turn hole 1313 are formed through the first retainer member 131 in the axial direction. The first U turn holes 1311 are formed in a plurality of spaced apart from each other in the vertical direction. The first U turn hole 1311 located at the upper portion is referred to as an upper first U turn hole 1311-1 and the first U turn hole 1311 located at the lower portion is referred to as a lower first U turn hole 1311-3. The upper first U-turn hole 1311-1 is positioned to communicate with the upper unloading hole 1131 in the axial direction, and the lower first U-turn hole 1311-3 is located in the lower unloading hole 1133 in the axial direction. .

And an upper second U-turn hole 1313-1 is formed through the upper first U-turn hole 1311-1 so as to be spaced inward in the width direction. And a lower second U-turn hole 1313-3 is formed through the lower first U-turn hole 1311-3 and spaced inward in the width direction. And a lower second U-turn hole 1313-3 is formed downward from the upper second U-turn hole 1313-1. The second U-turn holes 1313 are spaced apart from each other in the vertical direction. The upper second U turn hole 1313-1 is positioned to communicate with the upper load groove 1151 in the axial direction and the lower second U turn hole 1313-3 is positioned in the lower load groove 1153 in the axial direction .

The upper second U-turn hole 1313-1 and the upper first U-turn hole 1311-1 are connected to each other by an upper connection groove portion 1316-1. The upper connection groove portion 1316-1 is recessed to be a passage through which the rolling member 101 moves.

The lower second U turn hole 1313-3 and the lower first U turn hole 1311-3 are connected to the lower connection groove 1316-3. The lower connection groove portion 1316-3 is recessed to be a passage through which the rolling member 101 moves.

The first retainer member 131 is formed with an extended groove side surface 1312a surrounding the first U-turn hole 1311 and the second U-turn hole 1313.

A U-shaped hole 1312c is formed axially outwardly between the outer circumferential surface of the first U-turn hole 1311 and the second U-turn hole 1313 and the extended hole side 1312a.

The first retainer member (131) is formed with a projecting surface (1314) curved in a direction toward the second retainer member (133).

A protruding surface 1314 is convexly curved outwardly in the axial direction and a part of the protruding surface 1314 protrudes more than one side of the first retainer member 131 between the end portions of the U-shaped hole surface 1312c neighboring in the width direction.

A protruding surface 1314 is formed on the axially outer surface of the first retainer member 131 to have a portion projecting further in the axial direction from the first retainer member 131.

The protruding guide surface 1314 has a protruding portion that is more protruded than the axially outer side of the first retainer member 131, so that a connection guiding surface 1314a is formed.

The connection surface 1314a is formed to be vertically oriented.

A retainer engaging groove 1315 for engaging the second retainer 133 is formed concavely on the outer side of the first retainer member 131 in the axial direction. The retainer engagement grooves 1315 may be provided in a plurality of spaced apart from each other.

An upper first retainer groove 1319 is formed to extend in the axial direction on the inner upper side in the opened width direction of the first retainer member 131. The upper first retainer groove 1319 is upwardly concave, and a part of the seal member 180 is inserted.

A lower first retainer groove 1317 extends axially below the first retainer member 131. The lower first retainer groove 1319 is concave upwardly, and a first seal portion (not shown) of the seal member 180 is inserted.

As shown in Fig. 13, on the inner side surface in the axial direction of the first retainer member 131, the edges of the upper first U-turn hole 1311-1 and the lower first U- And a block engaging projection 1314 is protruded. The block coupling protrusion 1314 is inserted into the axial end of the unloading hole 113 formed in the block 110.

A second ball support member insertion groove 1312 is recessed inwardly in the width direction of the first retainer member 131. A first engaging projection (not shown) of the second ball supporting member 190 is inserted into the second ball supporting member insertion groove 1312.

A first ball supporting member insertion groove 1318 is recessed in a trapezoidal shape in a lower portion of the first retainer member 131 in the width direction. A supporting projection (not shown) of the first ball supporting member 170 is inserted into the first ball supporting member insertion groove 1318.

 The extension hole is formed in an arc shape outside the width direction of the first U turn hole 1311 and the second U turn hole 1313. The inner surface of the extended hole is formed with an extended hole side surface 1312a.

When the second retainer member 133 is laminated on the first retainer member 131, the protrusion 133a is inserted into the extended hole side 1312a so that the protrusion side surface 1336 of the protrusion 133a and the protrusion hole And an extended hole side surface 1312a of the protruding portion 1312b are in contact with each other.

When the first retainer member 131 and the second retainer member 133 are laminated to each other, the end surface 1336a is in contact with the U-shaped hole surface 1312c and the recessed surface 1334a is in contact with the protruding surface 1314 And the connecting jutting surface 1314a and the groove jutting surface 1338 are in contact with each other.

As described above, since the retainer 130 of the linear guide according to the present invention is provided in a laminating manner, the second retainer member can be assembled after insertion of the rolling member, so that the rolling member can be easily inserted, Is prevented from being deformed.

Although the linear guide with improved assemblability according to the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. will be. Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.

100: Linear guide
110: block 120: cover
131: first retainer member 133: second retainer member
150: cover seal 170: first ball supporting member
180: seal member 190: second ball supporting member

Claims (2)

A guide rail, a guide block 100 movably provided along the guide rail, and a plurality of rolling elements 101 interposed between the guide rail and the guide block 100;
The guide block 100 includes a block 110, a retainer 130, a cover seal 150, a cover 120, a first ball support member 170, a second ball support member 190, And a seal member 180;
The block 110 has an inverted " U "shape in which both sides extend downward. The block 110 is vertically spaced apart from both sides of the downwardly extending portion. The block 110 includes an upper and a lower sub- A center hole 113 is formed in the axial direction so as to extend in the axial direction of the upper load winding groove 1151 and the lower load winding groove 1153 in the vertical direction on the facing inner side surface, The hole and the lower unloaded center hole are formed with an increased diameter portion axially inward from the axial end;
The cover seal 150 is formed in a reverse "U" shape and is provided on both sides of the block 110 in the axial direction;
The cover 120 is provided on both sides in the axial direction of the block 110 so as to cover the retainer 130 and the cover seal 150 provided on both sides in the axial direction of the block 110;
The retainer 130 includes a first retainer member 131 and a second retainer member 133 which are provided on both sides in the axial direction and the width direction of the block 110 and are stacked in the axial direction, Forming a passageway;
The first retainer member 131 is laminated on the axial end portion of the block 110 as a plate-like opening with its widthwise inner side opened, and the first U turn hole 1311 and the second U turn hole 1313 are axially penetrated The first U turn holes 1311 are spaced apart from each other in the vertical direction so that the upper first U turn holes 1311-1 and the lower first U turn holes 1311-3 are formed in the axial direction, The turn holes 1313 are spaced apart from each other in the vertical direction and are formed of the upper second U turn holes 1313-1 and the lower second U turn holes 1313-3 and extend in the width direction inward from the upper first U turn holes 1311-1. The upper second U turn hole 1313-1 is formed to penetrate in the axial direction and the lower second U turn hole 1313-3 is spaced inward in the width direction from the lower first U turn hole 1311-3, The upper second U turn hole 1313-1 and the upper first U turn hole 1311-1 are connected to the concave upper connecting groove portion 1316-1 and the lower second U turn hole 1313-3 is formed, And the lower first U-turn hole 1311-3, And is axially inwardly extended to an edge of the upper first U turn hole 1311-1 and the lower first U turn hole 1311-3 in the axial direction, And an upper first retainer groove 1319 is formed to extend in the axial direction at an inner upper portion of the opening in the width direction, A lower first retainer groove 1317 is formed to extend in the axial direction, a second ball supporting member insertion groove 1312 is recessed inwardly inward in the width direction, The supporting member insertion groove 1318 is concave and an extension groove side 1312a surrounding the first U turn hole 1311 and the second U turn hole 1313 is formed and the first U turn hole 1311 and the A U-shaped hole 1312c is formed between the outer circumferential surface of the 2 U turn hole 1313 and the extended hole side 1312a in the outward direction in the axial direction And a protruding surface protruding in the axial direction in a direction toward the second retainer member 133 is curved on the outer side surface in the axial direction, and the protruding surface is more protruded than the axially outer side of the first retainer member 131 Between the ends of the U-shaped hole 1312c adjacent in the width direction, a protruding surface is curved convexly outwardly in the axial direction, and a part of the protruding surface is partially protruded from the end of the first retainer member 131 More protruding than the side;
The second retainer member 133 is vertically spaced so that the upper U-turn groove 1335-1 and the lower U-turn groove 1335-3 are formed concavely, and on the axially outer side at least one time And a second retainer projection 1331 inserted in the cover seal second groove of the cover seal 150 in a folded form and recessed axially inward in the width direction of the second retainer projection 1331 at least once And an upper second retainer groove (1332) extending in the axial direction and connected to the third seal portion insertion groove (1332). The third seal portion insertion groove (1332) And a lower second retainer groove 1337 extending in the axial direction and connected to the third seal portion insertion groove 1332. The first retainer member 131 And protruding in an arcuate shape on both sides in the width direction A protruding portion 133a having a minor side surface 1336 is formed and an end surface 1336a is formed in the axial direction end portion of the protruding side surface 1336 in the axial direction and between the end surfaces 1336a neighboring in the width direction, The jaw face 1334a is curved concavely outwardly in the axial direction, and the axially inner side surface has a recessed portion that is more concave than the axially inner side surface of the second retainer member 133, thereby forming a groove surface 1338;
When the second retainer member 133 is laminated on the first retainer member 131, the protrusion 133a is inserted into the extended hole side 1312a so that the protrusion side 1336 of the protrusion 133a is inserted into the extension hole side And the end surface 1336a is in contact with the U-shaped hole surface 1312c and the recessed surface 1334a is in contact with the protruding surface, and the connection surface 1313a and the groove surface 1312a are in contact with each other, 1338 are in contact with each other;
The first ball supporting member 170 is installed at the lower end of the lower load winding groove 1153 to support the rolling member, and the supporting protrusion is inserted into the first ball supporting member insertion groove 1318;
The second ball support member 190 is formed in a plate shape and supports the rolling member 101 which is provided between the width direction of the upper load groove 1151 and driven by the upper load groove 1151, A first engaging projection provided on the ball supporting member 190 is inserted into the second ball supporting member inserting groove 1312 of the first retainer member 131;
The seal member 180 has a lower first retainer groove 1317, an upper first retainer groove 1319, a third seal portion insertion groove 1332, an upper second retainer groove 1339, a lower second retainer groove 1337 And the linear guide is inserted into the linear guide.
delete
KR1020150150551A 2015-10-28 2015-10-28 Linear Guid Enhanced Assemblability KR101818930B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004108537A (en) 2002-09-20 2004-04-08 Nsk Ltd Method of manufacturing linear guide device, and linear guide device
KR100713041B1 (en) * 2000-05-29 2007-05-02 티에치케이 가부시끼가이샤 Linear m0ti0n guide device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100713041B1 (en) * 2000-05-29 2007-05-02 티에치케이 가부시끼가이샤 Linear m0ti0n guide device
JP2004108537A (en) 2002-09-20 2004-04-08 Nsk Ltd Method of manufacturing linear guide device, and linear guide device

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