KR100901162B1 - Profile linear guide system of preload adjusting type - Google Patents

Abstract

A profile linear guide system of preload adjusting type is provided to guarantee the quantity of wear between a guide rail and a bearing by compensating for the pre-load of a ball bearing. A sliding member(200) moves straightly in the base rail member(100). The preload adjustment part(600) is comprised in one side linear movement guide part(210) of sliding member. One side guide rail(251) is combined in one side rail bonding groove(211). One side guide rail is moved to the outer side by the adjustment of the preload adjustment part. And the pre-load of the bearing(300) is controlled by adjustment of each guide rail.

Description

Preload adjustable profile linear guide system {PROFILE LINEAR GUIDE SYSTEM OF PRELOAD ADJUSTING TYPE}

The present invention relates to a guide means of a linearly movable actuator used for high-precision linear position control in the fields of displays, semiconductors, robots, machine tools, and precision instruments. More specifically, the base rail member and the slide moving member are made of aluminum. The linearly moving joints between each other by extruding to a profile of the cold rolled and drawn are made to be slidable by binding the guide rails of the wear-resistant metal material which has been processed by cold rolling, and the linearly movable actuators are disposed on the upper part of the base rail member and the lower part of the slide moving member. By forming the installation space, the efficient use of the installation space of the linear movable actuator, the weight reduction of the equipment, the reduction of manufacturing cost, and the clearance between the guide rails caused by abrasion during the installation and use process can be compensated and used for a long time. Life is, of course, also guaranteed for the convenience of the preload adjustment of the ball bearing precision and linear movement of the linear movement at a controlled preload type linear guide system profile to maximize the reliability of the device by way activity.

In general, linear movement actuators are used for high precision linear position control in the fields of displays, semiconductors, robots, machine tools, and precision instruments. For example, as linear guide means for guiding linear position control of such linear movement actuators, A linear feed mechanism with an LM guide can be given.

When constructing a system using such a linear feed mechanism, there was a limitation in cost increase and system speed due to the increase in system size (volume) due to the weighting of the L.M guide itself weight and the support plate weight.

In addition, the construction of the system using such a linear transfer mechanism was manufactured according to the application field, and thus the use of the system was limited due to the limitation of application of the equipment due to the disadvantages of incompatibility, high manufacturing cost, and heavy weight.

Thus, in recent years, a linear guide means has been disclosed as a more efficient straight line transfer mechanism, which mainly includes a base rail member having a supporting function and a slide moving member which is coupled to the upper portion of the base rail member and performs linear slide movement by an actuator. It is largely composed.

The base rail member of such a linear guide means has a U-shaped cross-sectional structure, which is formed by mounting and mounting a slide moving member that performs linear slide movement by a linear movable actuator therein.

At this time, the base rail member and the slide moving member are formed on both sides of the guide portion for guiding the slide movement, and the guide portion is moved in infinite track so as to minimize the friction during the slide movement guide and smoothly perform the linear movement The LM block includes a bearing in which two steel balls are embedded.

In the linear guide means, the slide moving member slides along the rail member by an actuator (for example, a linear motor, a ball screw, an air cylinder, etc.) to perform linear movement, and guides the slide moving member and the base rail member. It provides a linear motion by a ball bearing consisting of a plurality of steel balls to be negatively provided.

However, this conventional linear guide means has the following problems.

First, the LM block installed on the rail member of the base function and the guide part of the slide moving member is manufactured by fitting the ball bearings installed on the rails into steel ball sizes for each preload class in the initial assembly state to prevent wear caused after use. There is a disadvantage in that it is not possible to guarantee the service life due to the clearance adjustment cannot be performed, and there is a disadvantage in that it is not reliable to guarantee the operation accuracy due to the inability to perform correction work due to wear of the steel ball in the process of use.

That is, in the conventional linear guide means, the means for correcting by adjusting the clearance between the guide rails caused by the wear of the rail surface of the LM block or the steel ball during the installation and use of the steel ball can not be determined. There was a short service life due to poor running accuracy due to the generation of vibration noise and deterioration of the accuracy of the straight feed.

Secondly, since the base rail member and the slide moving member are made of metal, they are provided as heavy materials, so there are disadvantages of limitation of application of the equipment and limitation of use range.

That is, there is no great force in the linear guide in the horizontal direction, but there is a heavy load in the straight guide in the vertical direction, so that an excessive load is generated on the linear actuator during the movement of the vertical lift, and thus cannot be used.

Third, since the LM block assembled in the guide portion of the base rail member and the slide moving member is assembled by bolt fastening in the assembly groove, there is a problem in that it is difficult to malfunction or install a precise control assembly due to loosening of the bolt during use.

That is, the flow error between the rail member and the moving member occurs during use, which prevents precise movement control of the moving member, and the friction of the ball bearing of the LM block causes irregular wear, resulting in poor durability. There was a problem.

Fourth, the ball bearing of the LM block, as shown in Figure 22, the steel ball of the same diameter at the time of rotational transfer has a direct frictional movement, as well as shortening the life due to the increase in wear progress as well as acting as a deterrent to rolling motion Noise generation was a big disadvantage,

As shown in FIG. 23, a ball bearing having a resin roller interposed between the steel ball and the steel ball has been disclosed, but such a structure reduces the noise and wear of the steel ball due to rotational movement even when the resin roller reduces the transfer. Since the resin roller acts as a frictional resistance element, there is a disadvantage in that it does not guarantee a smooth bearing movement.

Fifth, there is no universality due to the limitation of the application of the equipment due to the failure to implement the stopper, ball screw and other supporting functions because no separate supporting means is taken in the front-rear direction according to the coupling means of the actuator or the linear movement of the slide moving member. I couldn't.

The present invention was created to solve all the problems of the prior art,

It is an object of the present invention to form a linear movable actuator receiving space in the center portion by extrusion molding the base rail member and the slide moving member by aluminum to maximize the utilization of the installation space of the actuator, only their linear movement guide portion wear resistance The guide rail manufactured by cold rolling and drawing processing is made of metal, and the insert assembly is used to reduce the overall weight and make it easy to adjust the clearance of the guide rail on one side as necessary to compensate by adjusting the preload of the ball bearing. In order to maximize the service life.

That is, the present invention by processing the necessary parts by extruding the base rail member and the slide moving member to a lightweight aluminum material and by forming a combination of cold-rolled, drawn wear-resistant metal guide rail in the linear guide portion by insert coupling To provide an overall weight reduction.

In addition, the present invention by simply adjusting the clearance of the one side guide rail coupled to the linear movement guide portion of the base rail member and the slide moving member in the process of use to correct the preload of the ball bearing, the wear amount between the ball bearing and the guide rail in accordance with long-term use This is to ensure precise operation by always calibrating.

In addition, the present invention is to produce the aluminum profile by extrusion of the base rail member and the slide is made of aluminum profile, the eastern material, the cold-rolled, drawn processing of the guide rail is made of a metal with high wear resistance, insert insert assembly Only the friction sliding part of the ball bearing is manufactured by performing quality control through grinding, thereby simplifying the manufacturing process, significantly reducing the manufacturing cost, and enabling position accuracy and high precision running.

In addition, the present invention can be used by simply installing the type of actuator in the installation space formed in the center of the base rail member and the slide moving member made of aluminum profile to increase the range of use, to ensure convenience.

The linear guide system for adjusting the preload of the present invention,

By extruding the aluminum material, the slide moving member and the base rail member having the linear movement guide part are extruded into an aluminum profile, and are separately manufactured by cold rolling and drawing in a rail joining groove processed to face the inner and outer sides of the linear movement guide part. Each of these large metal guide rails is combined with the insert to form a rail groove,

By inserting a ball bearing consisting of a plurality of balls between the opposite guide rails of the opposite side assembled by the ball guide cover for coupling to the front and rear of the slide moving member by sliding to guide the linear movement by sliding to the endless wheel to prevent separation A linear movable actuator installation space is formed in the upper part of the base rail member and the lower part of the slide moving member,

The preload adjusting part is formed on one side of the linear movement guide part of the slide moving member, and the guide rail coupled to the one side rail coupling groove is moved outwardly by the adjustment of the preload adjusting part to adjust the clearance between the guide rails of the base rail member. It is characterized by being configured to adjust the preload.

The preload control unit of the present invention includes a pair of tantalum springs that are sequentially opposed to the step assembly holes penetrated through the linear movement guide part of one side, and a guide rail of one side through the guide holes penetrated to one side by the step assembly hole. Inclined wedges in contact with the inclined guide surface of the inclined wedge to move the guide rails outward by the support and forcibly moving forward, support inserts for supporting each rear end of these wedges, fixed by blocking the reverse of the wedge of one side Comprising a fixed screw and the adjustment screw for forcibly forward adjustment of the wedge of the other side is configured, the adjustment screw to advance the wedge of the one side by the screw rotation in the ball guide cover to guide the guide rail through the guide hole It is characterized by adjusting the inclined guide surface of the guide rail by moving outward.

In particular, the front of the adjustment screw of the present invention is characterized in that to display the preload amount indicating scale to check the rotation control.

In the rail coupling groove of the base rail member of the present invention and the one rail coupling groove of the slide moving member, each guide rail is bonded to the inner edge by the metal adhesive filling and the corner portions of the respective guide rails are curled ( It is characterized by providing a solid bond by curling).

The seating groove formed in the guide rail of the base rail member and the slide moving member of the present invention protrudes a friction support for minimizing friction with the ball of the ball bearing so as to support the ball by processing it to a processing support surface corresponding to the curved surface of the ball. It is characterized by

The front and rear ends of the base rail member of the present invention are characterized in that a stopper means for controlling the linear movement amount of the slide moving member is constructed.

The upper portion of the slide moving member of the present invention is characterized in that the linear movement actuator suitable for the purpose of use by the coupling is easily assembled and used.

The preload adjustable profile linear guide system of the present invention manufactures the base rail member and the slide moving member into an aluminum profile by extrusion of aluminum material, and processes necessary parts to produce cold-rolled and drawn wear resistance of the linear guide member. By binding and manufacturing the metal guide rail, the guide rail of the slide moving member realizes precision and light weight, and the guide rail on one side of the slide moving member adjusts the preload of the ball bearing inserted between the guide rails by the adjustment of the preload adjusting part. It provides the effect of maximizing the service life by simply correcting the amount of wear caused by friction between the ball bearing and

Reduces manufacturing costs by simply and reliably assembling the guide rails on the linear guides of the base rail member and the slide moving member, and effectively installs the actuator suitable for use on the slide moving member to provide excellent convenience, device reliability and efficiency. It is to have an effect to provide.

The preload adjustable profile linear guide system of the preferred embodiment of the present invention is shown in FIGS.

The present invention is the base rail member 100 and the slide moving member 200 of the aluminum profile manufactured by extrusion molding of aluminum material,

Guide rails (151, 152) (251, 252) made of cold-rolled or drawn wear-resistant metal that are coupled to the rail coupling grooves (111, 121) (211, 221) of the linear movement guide parts (110, 120) (210, 220) protruding on both sides thereof; ,

A ball bearing 300 composed of a plurality of balls inserted between these guide rails,

The ball guide cover 400 and the dust cover 500 are largely configured to connect the ball bearings from the separation and the running of the crawler wheel.

The base rail member 100 and the slide moving member 200 are formed in a U-shape, and the slide moving member 200 is coupled in a reverse direction on the base rail member 100 so that each linear movement guide part on both sides ( Guide rails 151, 152, 251, 252 coupled to the rail coupling grooves 111, 121, 211, 221 formed on opposite surfaces of the 110, 120, 210, 220 and the ball bearing 300 are assembled in a linear reciprocating manner. The actuator is to form an actuator receiving space (A / SP) to be assembled.

In this case, the linear actuator is a linear motor (LM), ball screw (BS), air cylinder (AC) or timing belt / pulley mechanism, other linear transfer machine, etc. as shown in Figure 18 to 20 Can be installed and used without additional design work, ensuring compatibility.

Endless tracks of the ball bearing 300 composed of a plurality of balls in the mounting grooves 153 and 253 processed in parallel above and below the guide rails 151, 152, 251 and 252 of the base rail member 100 and the slide moving member 200. The slide moving member 200 penetrates the plurality of tracks 410 in the longitudinal direction for guiding the slide on the wheels, and the tracks 410 in the seating grooves 153 and 253 of the guide rails 151, 152, 251 and 252. Ball guide cover 400 processed by the track 420 to connect the movement of the ball bearing 300 through the) is coupled to the front, rear, and the dust cover 500 is assembled on the outside thereof.

At this time, the center point of the track 410 of the slide moving member 200 is penetrated diagonally with the center point of the seating grooves 153 and 253 of the guide rails 151 and 152 and 251 and 252, and the ball guide cover guiding them by interconnecting them. The track 420 of 400 is also penetrated diagonally to have a sufficient rotation radius according to the sliding motion on the endless wheel of the plurality of balls of the ball bearing 300 to provide a smooth rolling motion.

In addition, a plurality of balls of the ball bearing 300 are interposed between the large diameter steel ball 310 and the steel ball 310 to make a direct frictional movement between the seating grooves 153 and 253 of the guide rails 151, 152, 251 and 252. Small diameter resin ball 320 is installed alternately arranged to minimize the frictional resistance of the steel ball 300 to provide noise and smooth rolling motion.

That is, the ball bearing 300 of the present invention, as shown in Figure 18, the steel ball 310 is rolling contact rotation of the seating grooves 153, 253 of the guide rails (151, 152, 251, 252) At the time of transmission, the micro-diameter resin ball 320 maintains mutual movement directions when contacting the steel ball 310 to facilitate smooth rotational rotation, thereby providing prevention of wear, vibration, and noise of the steel ball 310.

On the other hand, one side of the linear movement guide portion 210 of the slide moving member 200 is configured with a preload adjusting unit 600 for adjusting the preload of the steel ball 310 of the ball bearing 300 in the use process.

As shown in FIGS. 14 to 17, the preload control unit 600 is inclined to face inwardly at both ends of the front and rear rail coupling grooves 211 of the one-side linear moving guide 210. The inclined guide surface of the guide rail 251 is processed and coupled to the guide rail 251 of the one side for processing the surface 212, and coupled to the guide rail 251, the same as the guide sheet surface 212, 255 a pair of ball springs (610, 611), through which the plurality of conical stepped holes 213 penetrating through each guide hole 214 in the longitudinal direction and coupled thereto, outwardly from the guide hole (214) A pair of conical wedges 620 and 621 protruding and in contact with the inclined guide surface 255 of the guide rail 251, a pair of support inserts 630 and 631 supporting each rear end of these conical wedges, and rotation of these support inserts. Each fixing pin 635 to prevent An adjustment screw 640 and a conical shape on the other side, which are screwed to the threaded hole 450 processed on the cover cover 400 and penetrate the respective conical wedges 620 and 621 to adjust the advancement of the conical wedge 620 on one side. It consists of a set screw 641 to block the reverse of the wedge 621.

As shown in FIGS. 16 and 17, the preload control unit 600 advances the conical wedge 620 by screw rotation of the adjusting screw 640, and the wedge is inclined guide surface of the guide rail 251. By pressing forward 255, the guide rail 251 is pushed outward.

As a result, the clearance between the guide rail 251 and the guide rail 151 of the base rail member 100 assembled on the opposite side thereof and the clearance between the guide rails 152 and 252 on the opposite side are narrowed so that the ball bearing 300 is reduced. The preload of the steel ball 310 can be easily adjusted.

In addition, the preload amount indicating scale 645 is displayed on the front surface of the adjustment screw 640 to adjust while checking the preload amount by the screw rotation of the adjustment screw 640.

On the other hand, the guide rails 150 and 151 of the base rail member 100 and the one side guide rail 252 of the slide moving member 200 are filled with metal adhesives in the respective rail coupling grooves 111, 121 and 221. It is firmly bound by a curling process in the state assembled in the joined state.

At this time, the guide rail 251 of one side which is coupled to the one side rail coupling groove 211 of the slide moving member 200 by the preload control unit 600 is excluded, the adhesive coupling structure by the metal adhesive is excluded. Of course.

In addition, each seating groove 153, 253 formed in each of the guide rails 151, 152, 251, 252 is processed paper surface corresponding to the curved surface of the steel ball 310 of the ball bearing 300 on the inner side along the longitudinal direction 155 and 255 are configured to protrude the processed friction support parts 154 and 254 to minimize friction with the steel ball 310.

That is, the processing support surface 155, 255 protrudes after coupling the guide rails 151, 152, 251, 252 to the rail coupling grooves 111, 121, 211, 221 of the base rail member 100 and the slide moving member 200. The molded friction support parts 154 and 254 are precisely processed by the final grinding process.

In addition, the front and rear ends of the base rail member 100 may be provided with a stopper means 700 for limiting the linear movement distance during the linear movement of the base moving member.

The stopper means 700 includes a support plate 710 bolted to the front and rear ends of the base rail member 100, and an absorber 720 and a stopper bolt screwed to a screw hole machined on the support plate. 730).

The stopper means 700 is stopped by a damper assembled at the tip of the stopper bolt 730 while the slide moving member 200 is moved and buffered by the speed absorber 720, before the stopper bolt 730, The linear movement distance of the slide moving member 200 is limited by the backward movement.

In addition, the support plate 710 may be used for mounting a ball screw by forming a ball screw (B.S) mounting shaft hole.

In addition, the central coupling hole 250 of the slide moving member 200 is configured with a coupling 800 for easy coupling of the linear actuator.

The coupling 800 includes a base 810 assembled to the center coupling hole 250, a ball nut 820 rotatably coupled to the base, and a clamping bolt for screwing the ball nut and screwing the actuator ( 830).

The coupling 800 is guaranteed an angular displacement according to the linear movement of the actuator to provide correction of the torsion according to the linear movement of the actuator.

As the reference numeral, B / T is a bolt for fastening and assembling each component member, 460 is screw assembly to the ball guide cover 400 to indicate a support cover to block the separation of the ball of the ball bearing 300 .

Next will be described the operation and action of the present invention configured as described above.

First, the preload adjustable profile linear guide system of the present invention can maximize the weight reduction of the total weight by manufacturing the base rail member 100 and the slide moving member 200, which is a main component, by aluminum profile by extrusion.

In this state, the predetermined portion is processed, and the "∩" shaped slide moving member 200 is coupled with the ball bearing 300 to the base rail member 100 of the "∪" shape. The linearly moving actuator is formed to form an actuator receiving space (A / SP) is coupled.

That is, the slide moving member 200 is installed in the upper center of the base rail member 100, but the seating grooves of the guide rails 151, 152, 251 and 252 of the base rail member 100 and the slide moving member 200. A plurality of steel balls 310 and resin balls 320 are alternately disposed between the tracks 410 of the slide moving member 200 and the track 4210 of the ball guide cover 400 between 153 and 253. Insert the ball bearing 30 formed by inserting.

And before and after the slide moving member 200, the dust cover 500 is coupled with the ball guide cover 400.

Of course, the base rail member 100 and the slide moving member 200 is made of aluminum by extruding the profile, and after cutting to the appropriate length, the rail coupling grooves 111, 121 and 221 are filled with a metal adhesive. After combining the guide rails 151, 152 and 252 processed by cold rolling and drawing with a metal of high wear resistance, the final grinding processing of the friction support parts 154 and 254 protruded into the seating grooves 153 and 253 of the ball bearing 300 is performed. By this, the processing paper surface 155, 255 is precisely processed.

Of course, the processing must be performed in a state where the guide rails 151, 152 and 252 are inserted and bound by a curling process, and the processing of the guide rail 251 on one side is naturally performed in a fixed state.

In addition, the rail coupling groove 211 of the linear movement guide part 210 of the one side of the slide moving member 200 processes the guide sheet 212 which is inclined in the opposite direction from both ends of the front and rear sides by a separate process. The one side of the guide rail 251 to be coupled is processed by combining the same inclined guide surface 255 as the guide support surface 212, and at the same time through the conical step assembly hole 213 in the longitudinal direction through the preload adjusting portion ( 600) is assembled and built.

The preload control unit 600 is a ball spring 610, 611, conical wedges (620, 621), support inserts (630, 631) for supporting each rear end of the conical wedge through the cone step assembly hole 213, and prevents the rotation of these support inserts After assembling each of the fixing pins 635 sequentially and then assembling the ball guide cover 400 with the bolt (B / T) and then to the screw hole 450 of each ball guide cover 400 Screw the adjustment screw 640 and the set screw 641.

In addition, the slide moving member 200 has an actuator accommodating space by a coupling 800, that is, a ball nut 820 rotatably coupled to the base 810, and a screw portion of the clamping bolt 830 screwed to the ball nut. The linear actuators such as linear motors (LM), ballscrews (BS), air cylinders (AC) and the like are used in combination with (A / SP).

And before and after the base rail member 100, a stopper means 700 for limiting the linear movement distance of the slide moving member 200 is assembled.

The stopper means 700 includes a support plate 710 assembled with bolts (B / T) at the front and rear ends of the base rail member 100, and a fast absorber 720 which is screwed into a screw hole machined on the support plate. ) And the stopper bolt 730, and the slide moving member 200 is moved and buffered by the absorber 720 and stopped by the stopper bolt 730 to move forward and backward of the stopper bolt 730. According to the movement, the linear movement distance of the slide movement member 200 is limited.

As described above, in the present invention, the slide moving member 200 reciprocates linearly along the base rail member 100 by the control of the linear actuator.

At this time, the guide rails 151, 152, 251 and 252 of the base rail member 100 and the slide moving member 200 have a ball bearing 300 composed of a plurality of steel balls 310 and a resin ball 320. Through the track 410 of the track 200 and the track 420 of the ball guide cover 400 is inserted in the infinite track shape to provide a smooth slide motion according to the slide movement of the slide moving member (200).

In addition, the plurality of steel balls 310 of the ball bearing 300 is protruded along the longitudinal direction to the mounting grooves 153, 253 of the guide rails 151, 152, 251, 252 is processed paper surface (155, 255) By supporting the steel ball 310 of the ball bearing 300 to minimize the friction between the steel ball 310 of the ball bearing 300 can provide a smoother slide movement of the slide moving member 200.

On the other hand, in the present invention by adjusting the preload pressure of the ball bearing 300 by the preload adjusting unit 600 built in the linear movement guide portion 210 of the slide moving member 200, wear in the use process as in the prior art Without the work of replacing the steel ball 310 of the ball bearing 300, the ball bearing 300 is to be used to easily adjust the preload.

In detail, when the conical wedge 620 is advanced by the screw rotation of one side adjustment screw 640 of the preload adjusting unit 600, the wedge protrudes through the guide hole 214 to guide the rail 251. By pushing forward the inclined guide surface 255 of the guide rail 251 is pushed outward.

As a result, the clearance between the guide rail 251 and the guide rail 151 of the base rail member 100 assembled on the opposite side thereof and the clearance between the guide rails 152 and 252 on the opposite side are simultaneously narrowed to obtain a ball bearing 300. ) Can easily adjust the preload of the steel ball (310).

At this time, since the preload amount indicating scale 645 is displayed on the front of the adjustment screw 640, it is possible to check the preload adjustment by adjusting the rotation of the adjustment screw 640, thereby providing accurate adjustment work and convenience.

The preload adjustment of the ball bearing 300 adjusts the rolling force that the slide moving member 200 moves back and forth in the base rail member 100, so that precise control of the linear movement of the slide moving member 200 is, of course. In the process of use, it is possible to increase the control use and the service life according to the wear amount of the ball bearing 300.

In addition, the slide moving member 200 to move straight in the longitudinal direction of the base rail member 100 as described above to control the distance of the straight movement by the stopper means 700 provided on both ends of the base rail member 100. Can be.

1 is an assembled perspective view showing the present invention as a whole.

2 is a plan view of FIG.

3 is a side view of FIG. 1;

4 is an exploded perspective view of the present invention.

5 and 6 are enlarged views of some excerpts of FIG.

7 is a side cross-sectional view of the present invention.

8 is an enlarged view of an excerpt of the guide rail coupling portion of FIG. 7.

9 is an enlarged view of an excerpt of another guide rail coupling portion of FIG. 7.

FIG. 10 is an enlarged view of a part of the extract of FIG. 8; FIG.

FIG. 11 is an enlarged view of a part of the extract of FIG. 10; FIG.

12 is a cross-sectional view showing a coupling that is a fastening means of the actuator of the present invention.

Figure 13 is a cross sectional view of the present invention.

Figure 14 is an exploded cross-sectional view of the preload control unit of the present invention.

Figure 15 is an enlarged view of one side of the preload control of Figure 13;

Figure 16 is an enlarged view of the other side extraction of the preload control of Figure 13;

17 is an operating state diagram of FIG. 16.

18 is an excerpted operation of the ball bearing which is a component of the present invention.

19 to 21 is a side view of the type of actuator coupled to the slide moving member of the present invention.

22 and 23 is an operation view showing the structure of a conventional ball bearing.

** Description of symbols for the main parts of the drawing **

100: base rail member 110, 120, 210, 220: linear movement guide portion

111,121,211,221: rail coupling groove

151,152,251,252: guide rails formed by cold rolling or drawing

153,253: mounting groove 154,254: friction support

155,255: processing paper surface 200: slide moving member

212: guide sheet 255: inclined guide surface

300: ball bearing 310: steel ball

320: resin ball 400: ball guide cover

410,420: Track 500: Dust cover

600: preload control unit 610,611: ball spring

620,621: conical wedge 630,631: support insert

635: fixing pin 640: adjusting screw

641: set screw 645: preload amount indication scale

Claims (5)

The base rail member 100 having the linear movement guide parts 110, 120, 210, and 220 and the slide movement member 200 are formed into an aluminum profile by extrusion of aluminum, and thus the inner and outer sides of the linear movement guide parts 110, 120, 210, and 220 are formed. The wear-resistant metal guide rails 151, 152 and 251 and 252 which are formed by cold rolling and pulverization are respectively inserted into the rail coupling grooves 111 and 121 and 211 and 221 which are machined to face each other. By inserting a ball bearing 300 consisting of a plurality of balls between the guide rails on both sides of the opposite assembly assembled by sliding the ball guide cover 400 coupled to the front and rear of the slide moving member 200 by sliding to endless tracks Combining the configuration to guide the linear movement to form a linear movable actuator installation space (A / SP) in the upper portion of the base rail member 100 and the lower portion of the slide moving member 200, One side of the linear movement guide portion 210 of the slide moving member 200 constitutes a preload adjusting unit 600, and only one guide rail 251 coupled to the one side rail coupling groove 211 by adjustment of the preload adjusting unit. Preload control characterized in that it is made to adjust the preload of the ball bearing 300 by adjusting the clearance between the guide rails 252 and the guide rails 151 and 152 of the base rail member 100 on the other side by allowing the movement to the outside. Profile linear guide system. The method of claim 1, A plurality of balls of the ball bearing 300 is interposed between the steel ball 310 of the large diameter and the steel ball 310 to perform a direct frictional movement between the seating grooves (153, 253) of the guide rails (151, 152, 251, 252) And a resin ball 320 having a small diameter alternately arranged to reduce the frictional resistance of the steel ball 310. The method of claim 1, The preload adjusting unit 600 processes and couples the guide support surface 212 which is inclined inwardly from both ends of the rail coupling groove 211 of the one-side linear moving guide part 210 inward. The guide rail 251 of one side is processed by combining the same inclined guide surface 255 and the guide surface 212, A pair of tandem springs 610 and 611 penetrating in a longitudinal direction to the plurality of conical stepped assembling holes 213 penetrating through the respective guide holes 214 toward the inclined guide surface 255 of the guide rail 251 A pair of conical wedges 620 and 621 protruding outward from the guide hole 214 to abut the inclined guide surface 255 of the guide rail 251, and a pair of support inserts for supporting each rear end of these conical wedges. (630,631), each of the fixing pins 635 to prevent the rotation of these support inserts, screwed to the threaded holes 450 processed in the ball guide cover 400 and through the respective conical wedges (620, 621) Pre-loading adjustable profile linear, characterized in that consisting of a control screw 640 for adjusting the forward of the conical wedge 620 of the one side and a fixing screw 641 for blocking the backward of the conical wedge 621 of the other side Guide system Tem. The method of claim 1, The guide rails 150 and 151 of the base rail member 100 and the guide rails 252 of the slide moving member 200 are filled with metal adhesives in the respective rail coupling grooves 111, 121 and 221 and are bonded to each other. Pre-loading adjustable profile linear guide system, characterized in that configured by curling (curling) in the assembled state. The method according to claim 1 or 3, Each seating groove 153, 253 formed in each of the guide rails 151, 152, 251, 252 is processed paper surface corresponding to the curved surface of the steel ball 310 of the ball bearing 300 on the inner side along the longitudinal direction ( 155, 255 is configured to protrude the processed friction support (154, 254) to minimize the frictional force pre-loading profile linear guide system.

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