KR101635384B1

KR101635384B1 - Hybrid Linear Motion guide

Info

Publication number: KR101635384B1
Application number: KR1020150054736A
Authority: KR
Inventors: 원종범; 강정석; 배철기; 전지광
Original assignee: 주식회사 스맥
Priority date: 2015-04-17
Filing date: 2015-04-17
Publication date: 2016-07-01

Abstract

According to the present invention, a hybrid LM guide comprises: a rail guide (10); an LM block (20) moving along the rail guide (10); and an interval adjustment module (30) disposed between the LM block (20) and the rail guide (10) to adjust an interval between the rail guide (10) and the LM block (20) by supplying a fluid to a chamber (25) formed between the LM block (20) and the rail guide (10). The hybrid LM guide in accordance with the present invention is able to distribute or uniformly form the load of a bearing to support the rail guide by disposing the interval adjustment module between the rail guide and the LM block, and adjusting the interval between the rail guide and the LM block through a pressure of a fluid supplied by the interval adjustment module.

Description

Hybrid Linear Motion Guide

The present invention relates to an LM guide.

As is well known, the Linear Motion Guide is a means provided on the bottom surface of a conveying belt having a flat plate shape to linearly reciprocate the conveying belt.

The LM guide is moved in a straight line while minimizing the clearance.

The LM guide is largely composed of an EL block mounted on the bottom surface of the conveying table and a guide rail for moving the EL block.

Here, the EL block is connected in series to the center of the guide rail and is coupled to a lead screw rotated by the power of the motor, and moves along the guide rail according to the rotation operation of the lead screw, .

Korean Patent No. 10-0616207

An object of the present invention is to provide a hybrid LM guide capable of adjusting a gap between a rail guide and an EL block.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hybrid LM guide capable of dispersing or evenly forming a load of a bearing supporting a rail guide.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hybrid LM guide capable of extending the service life of a bearing supporting a rail guide and improving precision.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

The hybrid LM guide according to one aspect of the present invention includes a rail guide 10; An EL block 20 moved along the rail guide 10; A fluid is supplied to the chamber 25 formed between the EL block 20 and the rail guide 10 so that the rail guide 10 and the EL block 20, And an interval adjusting module 30 for adjusting the interval of the plurality of light emitting diodes 20.

The gap adjustment module 30 is configured to divide the chamber 25 into a first chamber 28 and a second chamber 29 and to supply the fluid supplied to the first chamber 28 or the second chamber 29 And a movable assembly movable relative to the elbow block 20 by a pressure of the movable block. The movable assembly may be supported by the rail guide.

The moving assembly includes a moving rod 35 for partitioning the chamber 25 into a first chamber 28 and a second chamber 29 and a moving rod 35 coupled to the moving rod 35, And a rod plate 32 supported by the rail guide 10.

The EL block 20 includes a first block flow path 26 connected to the first chamber 28 to supply or recover fluid. And a second block flow path 27 connected to the second chamber 29 to supply or recover the fluid.

The hybrid LM guide according to another aspect of the present invention includes a rail guide 10; An EL block 20 moved along the rail guide 10; A fluid is supplied to the chamber 25 formed between the EL block 20 and the rail guide 10 so that the rail guide 10 and the EL block 20, And an interval adjusting module 30 for adjusting the interval between the first chamber 28 and the second chamber 29. The interval adjusting module 30 divides the chamber 25 into a first chamber 28 and a second chamber 29 A moving rod 35; And a rod plate (32) coupled to the moving rod (35) and disposed under the EL block (20) and supported by the rail guide (10) A first block flow path 26 connected to the first chamber 28 to supply or recover fluid; And a second block flow path (27) connected to the second chamber (29) to supply or recover fluid.

The gap adjusting module is disposed between the rail guide and the EL block, and the distance between the rail guide and the EL block can be adjusted through the pressure of the fluid supplied through the gap adjusting module.

The present invention has the effect of dispersing or evenly forming the load of the bearing supporting the rail guide.

INDUSTRIAL APPLICABILITY The present invention has the effect of prolonging the life of the bearing supporting the rail guide and improving the precision.

1 is a perspective view of a hybrid LM guide according to a first embodiment of the present invention;
Fig. 2 is an exploded perspective view of Fig.
FIG. 3 is a cross-sectional view of an example 1
FIG. 4 is a cross-sectional view of an example 2
FIG. 5 is a sectional view of the hybrid ELM guide according to the first embodiment of the present invention,
6 is a cross-sectional view of the hybrid LM guide according to the first embodiment of the present invention,

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

1 is an exploded perspective view of the hybrid ELM according to the first embodiment of the present invention, Fig. 2 is an exploded perspective view of Fig. 1, Fig. 3 is an exemplary diagram 1 showing the operating state of Fig. 1, Fig. 2 is an exemplary view showing an operating state of the battery.

The hybrid ELM guide according to the present embodiment includes a rail guide 10, an EL block 20 moved along the rail guide 10, and an EL block 20 disposed between the EL block 20 and the rail guide 10, And an interval adjusting module 30 for adjusting the distance between the rail guide 10 and the EL block 20 through the pressure of the rail guide 10 and the EL block 20.

The rail guide 10 is a general structure used in a linear motion guide.

The rail guide 10 is formed with a guide portion 12 extending in the longitudinal direction to guide the moving direction of the EL block 20.

The guide portion 12 is formed with a flat upper surface and protruding in the left and right direction.

The EL block 20 may be supported only on the upper side 11 of the guide part 12 or on both the upper side 11 and the lower side 13 of the guide part 12.

The EL block 20 includes a block body 21, a guide groove 22 formed at a lower side of the block body 21 and into which the guide portion 12 is inserted, A cover groove 24 formed on the upper side of the block body 21 and communicating with the chamber 25 and a guide groove 22 formed on the upper side of the block body 21, And at least two block flow paths 26 and 27 connected to the chamber 25 to allow fluid to flow in and out.

The guide groove 22 is formed on the bottom surface of the block body 21.

The guide groove 22 is recessed upward from the bottom surface.

The guide portion 12 of the rail guide 10 is inserted into the guide groove 22.

The EL block 20 is moved along the guide portion 12 in a state where the EL block 20 is inserted into the guide groove 22.

The cover groove 24 is formed on the upper surface of the block body 21.

The cover groove 24 may communicate with the guide groove 22.

The chamber 25 is formed between the cover groove 24 and the guide groove 22.

The chamber 25 is filled with a fluid.

The chamber 25 is composed of a first chamber 28 and a second chamber 29.

The block flow paths 26 and 27 are composed of a first block flow path 26 and a second block flow path 27.

The first chamber 28 is connected to the first block flow path 26.

The second chamber 29 is connected to the second block flow path 27.

The fluid may flow in and out through the first block flow path 26 to control the pressure inside the first chamber 28.

The fluid can flow in and out through the second block flow path 27 to adjust the pressure inside the second chamber 29.

In order to form the block flow paths 26 and 27 inside the block body 21 made of metal, holes are processed in this embodiment.

For example, in order to form the first block flow path 26, a 1-1 hole machining process 26-1 is performed in the longitudinal direction of the block body 21, Perform 1-2 hole machining (26-2).

Here, the first-hole machining 26-1 and the first-hole machining 26-2 intersect with each other to allow fluid to flow.

In the present embodiment, the outer end of the first-hole machining 26-2 is closed through a separate part (in this embodiment, a shut-off screw 55 is used) (25).

A first nipple 23-1 is provided at an outer end of the first-hole machining 26-1.

The fluid flows in and out through the first nipple 23-1.

The second block flow path 27 has the same structure as the first block flow path 26.

Therefore, the second block flow path 27 is formed through the second-1 hole processing 27-1 and the second-2 hole processing 27-2.

The second nipple 23-2 is provided at the outer end of the second-1 hole machining 27-1.

In the present embodiment, the first block flow path 26 and the second block flow path 27 are independent of the position where the chamber 25 is connected.

However, they should be connected to each other on the basis of the moving rod 35 described later.

The gap adjusting module 30 includes a rod plate 32 which is inserted into the guide groove 22 to seal the lower side of the chamber 25 and move up and down along the guide groove 22, A cover 34 inserted in the groove 24 to seal the upper side of the chamber 25 and a cover 34 disposed in the chamber 25 and through the first block passage 26 or the second block passage 27 And a moving rod 35 which is moved by the supplied fluid to move the rod plate 32.

The cover 34 is inserted into the cover groove 24 and fixed to the block body 21.

The upper side of the chamber (25) is sealed by the cover (34).

The rod plate 32 is inserted into the guide groove 22 and can be moved up and down.

The rod plate 32 contacts the moving rod 35 and moves together with the moving rod 35.

To this end, the moving rod 35 and the rod plate 32 are fastened together.

The rod plate 32 and the moving rod 35 may be integrally formed according to the shape of the chamber 25. [

In the present embodiment, since the moving rod 35 and the rod plate 32 can be manufactured integrally, the integrated structure is defined as a moving assembly.

The moving assembly moves in the vertical direction by the pressure of the fluid filled in the chamber, so that the relative height of the block body 21 and the rail guide 10 can be adjusted.

In the present embodiment, the lower space of the moving rod 35 is the first chamber 28, and the upper space is the second chamber 29.

In this embodiment, the fluid is in a liquid state.

When the first chamber 28 is filled with fluid through the first block flow path 26, the moving rod 35 is moved upward by pressure.

When the internal pressure is increased by the fluid filled in the first chamber 28, the moving rod 35 is pushed upward.

At this time, since the rod plate 32 maintains a state of being in close contact with the guide portion 12, there is an effect of lowering the block body 21 by the height of the moving rod 35.

When the fluid is filled in the second chamber 29 through the second block flow path 27, the moving rod 35 is moved downward by the pressure.

When the internal pressure is increased by the fluid filled in the second chamber 29, the moving rod 35 is pushed downward.

At this time, since the rod plate 32 maintains a state of being in tight contact with the guide part 12, there is an effect of elevating the block body 21 by the height at which the moving rod 35 is lowered.

As described above, the gap adjusting module 30 according to the present embodiment can actively adjust the height of the ELBBLER 20 with respect to the rail guide 10.

Meanwhile, the EL block 20 is brought into contact with the bearings 41 and 42 with the upper side and the lower side of the guide part 12.

The bearing which is in contact with the upper surface of the guide part 12 is defined as an upper bearing 41 and the bearing which is in contact with the lower side is defined as a lower bearing 42. [

The gap adjusting module 30 according to the present embodiment adjusts the pressures of the first and second chambers 28 and 29 so that the upper bearing 41 or the lower bearing 42, Can be adjusted.

That is, when an excessive load is applied to the upper bearing 41, the pressure of the second chamber 29 is increased, and the load is distributed to the lower bearing 42 by raising the EL block 20 through the second bearing.

If an excessive load is applied to either the upper bearing 41 or the lower bearing 42, the bearing may be deformed in shape and cause a reduction in accuracy.

In addition, when operated continuously in a deformed state, the life span is shortened.

The hybrid LM guide according to the present embodiment has an effect of actively controlling a load applied to the upper bearing 41 or the lower bearing 42 through the pressure control of the first and second chambers 28 and 29. [

O-rings or gaskets may be provided to prevent leakage of the fluid.

The first chamber 28 and the load plate 32 are provided between the cover 34 and the second chamber 29, between the first chamber 28 and the second chamber 29, and between the first chamber 28 and the rod plate 32, 2, and 3 O-rings 51, 52, and 53, respectively.

The first O-ring 51 prevents fluid from leaking from the second chamber 29 to the cover 34 side.

The second O-ring 52 is disposed between the first chamber 28 and the second chamber 29 and suppresses fluid movement between the chambers 28 and 29.

The third O-ring 53 prevents fluid from leaking from the first chamber 28 toward the rod plate 32 side.

In the present embodiment, the chamber 25 is composed of the first and second chambers 28 and 29 and is configured to supply the fluid to the chambers 28 and 29. However, unlike the present embodiment, The fluid may be supplied only to the chamber.

That is, the fluid may be supplied to only one chamber to adjust the hydraulic pressure, and the moving rod 35 may be supported by an elastic member (not shown) to interact with the hydraulic pressure.

For example, when the fluid flows into and out of the second chamber 29 to regulate the hydraulic pressure, and the elastic member is disposed between the first chamber 28 or the rod plate 32 and the block body 31, .

In FIG. 5, the structure may be supported only by the EL block 20. In this case, each of the EL block 20 can be supplied with the fluid, and the load on the front side or the rear side of the structure can be individually dispersed through the EL block 20.

In FIG. 6, the conventional EL block 120 and the EL block 20 according to the present embodiment may be combined to support the structure.

As described above, the hybrid ELM guide according to the present embodiment can be used in various forms in combination.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and range of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

10: rail guide 11: upper side
12: Guide part 13: Lower side
20: EL block 21: block body
22: guide groove 23-1: first nipple
23-2: second nipple 24: cover groove
25: chamber 26: first block flow path
27: second block flow path 28: first chamber
29: Second chamber 30: Spacing module
32: rod plate 34: cover
35: Moving rod 41: Upper bearing
42: lower bearing 51: first o-ring
52: second o-ring 53: third o-ring

Claims

A rail guide (10); And
A block body (21) moved along the rail guide (10);
A guide groove 22 formed below the block body 21 and into which the rail guide 10 is inserted;
A cover groove 24 formed on the upper side of the block body 21;
A chamber 25 formed inside the block body 21 and connecting the guide groove 22 and the cover groove 24 and filled with fluid;
The chamber 25 is provided with a first chamber 28 disposed on the cover groove 24 side and a second chamber 29 disposed on the guide groove 22 side, A moving rod 35 which moves in the vertical direction according to the pressures of the first chamber 28 and the second chamber 29;
A cover (34) coupled to the cover groove (24) and sealing the cover groove (24) to form the second chamber (29);
A load plate (32) disposed in the guide groove (22), supported by the rail guide (10) and coupled with the moving rod (35) to move up and down together with the moving rod (35);
A first block flow path (26) formed in the block body (21), connected to the first chamber (28), for supplying or recovering fluid in the first chamber (28);
And a second block flow path (27) formed in the block body (21), connected to the second chamber (29), for supplying or recovering fluid in the second chamber (29).

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