WO2010137755A1 - 예압 조절형 리니어 가이드 시스템 - Google Patents
예압 조절형 리니어 가이드 시스템 Download PDFInfo
- Publication number
- WO2010137755A1 WO2010137755A1 PCT/KR2009/002841 KR2009002841W WO2010137755A1 WO 2010137755 A1 WO2010137755 A1 WO 2010137755A1 KR 2009002841 W KR2009002841 W KR 2009002841W WO 2010137755 A1 WO2010137755 A1 WO 2010137755A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slide
- base
- rails
- rail
- preload
- Prior art date
Links
- 230000036316 preload Effects 0.000 title claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 230000008878 coupling Effects 0.000 claims description 23
- 238000010168 coupling process Methods 0.000 claims description 23
- 238000005859 coupling reaction Methods 0.000 claims description 23
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000010622 cold drawing Methods 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000003811 curling process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/30—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members controlled in conjunction with the feed mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/262—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members with means to adjust the distance between the relatively slidable members
-
- 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
- F16C29/005—Guide rails or tracks for a linear bearing, i.e. adapted for movement of a carriage or bearing body there along
-
- 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
- F16C29/048—Ball or roller bearings with thin walled races, e.g. tracks of sheet metal
-
- 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
- F16C29/063—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body, e.g. a carriage or part thereof, provided between the legs of a U-shaped guide rail or track
-
- 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
- F16C29/12—Arrangements for adjusting play
- F16C29/126—Arrangements for adjusting play using tapered surfaces or wedges
-
- 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
- F16C33/32—Balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/37—Loose spacing bodies
- F16C33/3713—Loose spacing bodies with other rolling elements serving as spacing bodies, e.g. the spacing bodies are in rolling contact with the load carrying rolling elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
-
- 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
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
Definitions
- the present invention relates to a linear guide system used for high precision linear position control in the display, semiconductor, robot, machine tool, measurement, and precision equipment industries. More specifically, the base member and the slide member linearly move with each other. And linearly move actuators such as ball screws, pneumatic cylinders, and linear motors between the base member and the slide member, and linearly feed the slide member with respect to the base member by the actuator. It's about a guide system.
- linear movement actuators are used for high-precision linear position control in the display, semiconductor, robot, machine tool, and precision equipment industries, and as linear guide means for guiding linear position control of such linear movement actuators.
- linear guide means for guiding linear position control of such linear movement actuators.
- the linear feed mechanism to which the LM guide is applied can be mentioned.
- a linear guide means has been disclosed as a more efficient straight line transfer mechanism, and mainly includes a base member having a supporting function, a slide member slidably mounted to the base member, and an actuator for driving the slide member against the base member. It is largely composed of actors.
- the base member and the slide member are formed with guide parts for guiding slide movements on both sides, and the guide parts include a plurality of steel balls which are moved in an endless track so as to minimize friction when guiding the slide movement and to smoothly guide the linear motion.
- An LM block is installed that includes an embedded bearing.
- This conventional linear guide means has the following problems.
- the preload of the ball bearings installed in the guide portions of the base member and the slide member cannot be adjusted. That is, the steel ball of the ball bearing is assembled by assembling the steel ball of the size selected according to the preload grade at the time of initial assembly, there is a problem that can not adjust the preload that changes depending on the wear during use. As described above, since the preload of the ball bearing cannot be adjusted during use, there is a problem in that the accuracy of operation falling during use cannot be corrected. As a result, vibration noise is generated and a disadvantage of shortening the service life occurs.
- the base member and the slide member are made of a heavy metal material having large rigidity and excellent wear resistance in order to secure wear resistance, the range in which the linear guide means can be applied is limited.
- FIG. 1 is a perspective view of a preload adjustable linear guide system according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the preload adjustable linear guide system shown in FIG. 1.
- FIG. 3 is a side cross-sectional view of the preload adjustable linear guide system shown in FIG. 1.
- FIG. 4 is an enlarged view of a portion of FIG. 3.
- FIG. 5 is an enlarged view of another part of FIG. 3.
- FIG. 6 is an enlarged view of a portion of FIG. 5.
- FIG. 7 shows the structure of the ball bearing shown in FIG. 1.
- FIG. 8 is an exploded perspective view illustrating the preload control unit illustrated in FIG. 1.
- FIG. 9 is a plan sectional view of the preload adjustable linear guide system shown in FIG.
- FIG. 10 is a cross-sectional view of the preload control unit shown in FIG. 8.
- FIG. 11 and 12 are enlarged views of a part of FIG. 10.
- FIG. 13 is an enlarged view of a portion of FIG. 2.
- FIG. 14 is a view for explaining the structure of a conventional ball bearing.
- the present invention has been made to solve the problems as described above, by providing a preload adjustable linear guide system having a structure that can adjust the preload acting on the ball bearing, reducing the wear of the ball bearing and the noise and vibration It is an object of the present invention to provide a preload adjustable linear guide system which prevents occurrence and enables a high precision linear motion guide.
- the preload adjustable linear guide system of the present invention comprises: a base member having a base body and a pair of base rails disposed parallel to each other and installed on the base body; A slide body and a pair of slide rails disposed to face each other with the pair of base rails of the base member, the pair of slide rails being installed on the slide body, the slide rails being disposed between the base rails and the slide rails.
- a slide member slidably installed with respect to the base member by sliding with respect to the base rail; And an interval between the one of the pair of slide rails and the slide body so as to adjust the preload of the ball bearing disposed between the base rail and the slide rail, the interval and angle of the slide rail relative to the slide body. It is characterized in that it comprises a; preload control unit for adjusting the.
- the preload regulating linear guide system of the present invention has the effect of preventing unnecessary wear of the ball bearing by allowing the preload of the ball bearing to be adjusted during use.
- the present invention has the effect of providing a pre-loading adjustment linear guide system for guiding linear movement with high precision by preventing noise and vibration caused by inadequate preload of the ball bearing.
- the present invention has the effect of providing a preload adjustable linear guide system with a significantly extended service life.
- FIG. 1 is a diagram illustrating a preload regulating linear guide system according to an embodiment of the present invention
- FIG. 2 is an exploded view of the preload regulating linear guide system shown in FIG. 1.
- the preload adjustable linear guide system of the present embodiment includes a base member 100, a slide member 200, and a preload adjusting unit 600.
- the base member 100 includes a base body 101 and a pair of base rails 151 and 152 installed on the base body 101.
- the base body 101 is lightly formed into an aluminum profile by extruding an aluminum material.
- Rail coupling grooves 111 and 121 are formed at both sides of the base body 101 in the longitudinal direction, and the base rails 151 and 152 are fitted into the rail coupling grooves 111 and 121, respectively.
- the base rails 151 and 152 are made of a wear resistant material having a rigidity higher than that of aluminum, and are manufactured by cold rolling or drawing methods.
- the rail coupling grooves 111 and 121 of the base body 101 are filled with metal adhesives, and then coupled by inserting the base rails 151 and 152.
- the slide member 200 includes a slide body 201 and a pair of slide rails 251 and 252 installed on the slide body 201.
- the slide body 201 is lightly formed into an aluminum profile by extruding an aluminum material.
- Rail coupling grooves 211 and 221 are formed at both sides of the slide body 201 in the longitudinal direction, and the slide rail 152 is fitted into the rail coupling groove 121 to be coupled thereto.
- the slide rails 251 and 252 are made of a wear resistant material having a rigidity higher than that of aluminum, and are manufactured by cold rolling or drawing methods.
- the rail coupling grooves 211 and 221 of the slide body 201 are filled with a metal adhesive and then fitted with the slide rails 151 and 152.
- the slide member 200 configured as described above is disposed between the linear movement guide portions 110 and 120 of the base member 100.
- the pair of base rails 151 and 152 of the base member 100 and the pair of slide rails 251 and 252 of the slide member 200 are disposed to face each other.
- a ball bearing 300 composed of a plurality of balls is disposed between the base rails 151 and 152 and the slide rails 251 and 252 so that the slide rails 251 and 252 are naturally provided with respect to the base rails 151 and 152. Let it slide.
- an actuator accommodating space in which an actuator is assembled is provided at a central portion in which the base body 101 of the base member 100 and the slide body 201 of the slide member 200 face each other.
- the actuator various devices such as a linear motor (L.M), a ball screw (B.S), an air cylinder (A.C) or a timing belt / pulley mechanism can be used.
- L.M linear motor
- B.S ball screw
- A.C air cylinder
- the present invention has the advantage of having high compatibility.
- two tracks 410 penetrating in the longitudinal direction are formed in the slide body 201.
- the seating grooves 153 and 253 formed in the base rails 151 and 152 and the slide rails 251 and 252 are connected to the track 410 to form an endless track as a path of the ball bearing 300 composed of a plurality of balls. .
- ball guide covers 400 are coupled to both ends of the slide body 201 in the longitudinal direction.
- the ball guide cover 400 is formed with a track 420 connecting the seating grooves 153 and 253 and the track 410 to prevent the ball bearing 300 from being separated and to connect the tracked track.
- the dust cover 500 is assembled to the outside of the ball guide cover 400.
- the center points of the tracks 410 of the slide member 200 and the center points of the seating grooves 153 and 253 of the base rails 151 and 152 and the slide rails 251 and 252 are different from each other.
- the track 420 of the ball guide cover 400 which guides through the interconnection, is inclined with respect to the bottom surface.
- the track 420 of the ball guide cover 400 is inclined so that the height of the seating grooves 153 and 253 is different from the height of the track 210 of the slide member 200, thereby widening the actuator accommodation space.
- the rotation radius of the track 420 of the ball guide cover 400 can be increased. That is, by increasing the radius of rotation of the track 420 of the ball guide cover 400, while enabling a smooth rolling motion of the ball bearing 300, there is an advantage that can be downsized the size of the entire system.
- the balls of the ball bearing 300, the steel ball 310 and the steel balls (310) to make a rolling motion in direct contact with the seating grooves (153, 253) of the base rails (151, 152) and the slide rails (251, 252) It is formed of a diameter smaller than the diameter of 310 and is composed of resin balls 320 made of a synthetic resin material and having lubricating properties. As shown in FIG. 7, the steel balls 310 and the resin balls 320 are alternately disposed. The resin balls 320 minimize the frictional resistance that may occur between the steel balls 310 while rotating in the direction opposite to the rotation direction of the steel balls 310, thereby preventing noise and vibration and providing smooth rolling motion. do.
- the steel balls 310 are in direct contact with the seating grooves 153 and 253 to be directly loaded, and the resin balls 320 are smaller in diameter than the steel balls 320, so that they are not loaded. It is to ease the friction between the steel balls (320).
- the preload adjusting unit 600 is installed between any one of the pair of slide rails 251 and 252 and the slide body 202, and the gap between the slide rail 251 and the slide body 202 relative to the slide body 202. Adjust the angle In this manner, the preload adjusting unit 600 adjusts the preload of the ball bearing 300 disposed between the base rails 151 and 152 and the slide rails 251 and 252.
- the preload adjusting unit 600 includes conical wedges 620 and 621 and adjusting screws 640 and 641.
- the step assembly hole 213 which penetrates the boundary surface in the longitudinal direction is formed.
- Guide supporting surfaces 212 are inclined on the inner surface of the step assembly hole 213 in the longitudinal direction both ends thereof are formed on both sides of the rail coupling groove 221, respectively.
- the slide rail 251 is provided with an inclined guide surface 255 inclined in the same manner as the guide support surface 212 on a surface facing the guide support surface 212.
- Springs 610 and 611 are fitted to both ends of the step assembly hole 213, and conical wedges 620 and 621 are fitted to the outside of the spring 610, respectively.
- the conical wedges 620 and 621 are tapered in shape and disposed in the longitudinal direction between the guide support surface 212 and the inclined guide surface 255.
- Support inserts 630 and 631 are fitted to the outside of the conical wedges 620 and 621, respectively, and fixing pins 635 are assembled to the support inserts 630 and 631 to prevent rotation of the support inserts 630 and 631. do.
- the adjusting screws 640 and 641 are screwed to the threaded hole 450 processed in the ball guide cover 400 and penetrate the support inserts 630 and 631 to adjust the retraction of the conical wedge 620.
- the preload adjusting unit 600 advances the conical wedge 620 by the screw rotation of the adjusting screw 640, the wedge presses the inclined guide surface 255 of the slide rail 251. By advancing, the slide rail 251 is pushed outward.
- the gap between the base rails 151 and 152 and the slide rails 251 and 252 is narrowed to easily adjust the preload of the steel ball 310 of the ball bearing 300.
- the angles of the slide rails 251 and 252 with respect to the base rails 151 and 152 may also be adjusted.
- 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.
- the base rails 150 and 151 of the base member 100 and the slide rails 252 of the slide member 200 are filled with metal adhesives in the respective rail coupling grooves 111, 121, and 221 and assembled in a bonded state. It is firmly bound by a curling process at.
- the slide rail 251 of one side that is coupled to the one side rail coupling groove 211 of the slide member 200 by the preload control unit 600 is excluded, the adhesive bonding structure by the metal adhesive is excluded.
- the mounting grooves 153 and 253 formed in the base rails 151 and 152 and the slide rails 251 and 252, respectively, are machined support corresponding to the curved surface of the steel ball 310 of the ball bearing 300 on the inner side along the longitudinal direction.
- Surfaces 155 and 255 are configured to protrude the processed friction support parts 154 and 254 to minimize friction with the steel ball 310.
- both ends of the base member 100 in the longitudinal direction may include stopper means 700 for limiting the linear movement distance during linear movement of the slide member 200.
- the stopper means 700 is composed of a support plate 710 bolted to the front and rear ends of the base member 100, a speed absorber 720 and a stopper bolt 730 screwed to the support plate.
- the stopper means 700 is stopped by a damper assembled at the tip of the stopper bolt 730 while the slide member 200 is fully cushioned by the absorber 720.
- the linear movement distance of the slide member 200 is limited by the forward and backward movement of the stopper bolt 730.
- the support plate 710 may be used for mounting a ball screw by forming a ball screw (B.S) mounting shaft hole.
- B.S ball screw
- the coupling member 800 is configured in the center coupling hole 250 of the slide member 200 for easy coupling of the linear actuator.
- the coupling 800 includes a base 810 assembled in the central coupling hole 250, a ball nut 820 rotatably coupled to the base 810, a screw nut to the ball nut 820, and an actuator. It consists of a clamping bolt 830 for screwing.
- the ball nut 820 Since the ball nut 820 is rotatably coupled with respect to the base 810, even if the linear motion trajectory of the actuator and the linear motion trajectory of the slide member 200 are minutely intersected, the ball nut 820 is the base 810. It has the advantage of correcting the torsion of the actuator while rotating about).
- B / T is a bolt for fastening and assembling each component member
- 460 is screw assembly to the ball guide cover 400 represents a support cover to block the separation of the ball of the ball bearing 300.
- the base body 101 and the slide body 201 except for the base rails 151 and 152 and the slide rails 251 and 252 are made of aluminum, thereby reducing the overall weight. Can be maximized. Therefore, there is an advantage of improving the productivity of the user by speeding up the linear transfer by the linear guide system of the present embodiment.
- the track 420 of the ball guide cover 400 is inclined so that the actuator accommodation space can be secured.
- the overall size of the preload-regulated linear guide system can be reduced and reduced, resulting in reduced weight and lower production costs.
- the actuator can be installed by replacing various types of actuators in the actuator installation space between the slide member 200 and the base member 100, there is an advantage that can be used universally according to various purposes and the purpose of the user. As such, the compatibility between the actuators is secured, and the design cost is not limited by designing and manufacturing a general linear guide system for each equipment, but by reducing the manufacturing cost.
- the plurality of steel balls 310 of the ball bearing 300 is protruded along the longitudinal direction in the seating grooves 153, 253, the processing paper surface (155, 255) is a steel ball 310 of the ball bearing 300
- the slide movement of the slide member 200 can be provided more smoothly.
- the preload adjustable linear guide system can extend the service life by adjusting the preload of the ball bearing 300 by the preload control unit 600 even if the ball bearing 300 is worn during use. Therefore, there is no need to replace the steel ball 310 of the ball bearing 300 worn in the use process as in the prior art.
- the linear motion of the slide member 200 can be precisely controlled.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
Description
Claims (9)
- 【청구항 1】베이스 몸체와, 서로 나란하게 배치되어 상기 베이스 몸체에 설치되는 한쌍의 베이스 레일을 구비하는 베이스 부재;슬라이드 몸체와, 상기 베이스 부재의 한쌍의 베이스 레일과 각각 서로 마주하도록 배치되어 상기 슬라이드 몸체에 설치되는 한쌍의 슬라이드 레일을 구비하며, 상기 베이스 레일과 슬라이드 레일의 사이에 배치되는 볼베어링에 의해 상기 슬라이드 레일이 상기 베이스 레일에 대해 미끄러짐으로써 상기 베이스 부재에 대해 슬라이딩 가능하게 설치되는 슬라이드 부재; 및상기 베이스 레일과 슬라이드 레일 사이에 배치된 볼베어링에 대한 예압을 조절할 수 있도록, 상기 한쌍의 슬라이드 레일 중 어느 하나와 상기 슬라이드 몸체의 사이에 설치되어, 상기 슬라이드 몸체에 대한 상기 슬라이드 레일의 간격과 각도를 조절하는 예압 조절부;를 포함하는 것을 특징으로 하는 예압 조절형 리니어 가이드 시스템.
- 【청구항 2】제1항에 있어서,상기 예압 조절부는, 테이퍼 형상으로 되어 상기 슬라이드 몸체와 상기 슬라이드 레일의 사이에 길이 방향으로 배치되는 원추형 웨지와, 상기 원추형 웨지를 길이 방향으로 진퇴시키는 조절 나사를 구비하며, 상기 원추형 웨지의 진퇴에 따라 상기 슬라이드 몸체와 상기 슬라이드 레일 사이의 간격과 각도를 조절하는 것을 특징으로 하는 예압 조절형 리니어 가이드 시스템.
- 【청구항 3】제2항에 있어서,상기 예압 조절부는, 상기 슬라이드 몸체와 슬라이드 레일 사이의 길이 방향 양단에 각각 하나씩 2개가 서로 마주하도록 배치되는 것을 특징으로 하는 예압 조절형 리니어 가이드 시스템.
- 【청구항 4】제1항에 있어서,상기 베이스 몸체는, 알루미늄 소재로 형성되며 양측에 레일 결합홈이 형성되고,상기 베이스 레일은, 알루미늄 보다 강성이 큰 내마모성 재질로 형성되어 상기 레일 결합홈에 끼워져 결합되며,상기 슬라이드 몸체는, 알루미늄 소재로 형성되며 양측에 레일 결합홈이 형성되고,상기 슬라이드 레일은, 알루미늄 보다 강성이 큰 내마모성 재질로 형성되어 상기 레일 결합홈에 끼워져 결합되는 것을 특징으로 하는 예압 조절형 리니어 가이드 시스템.
- 【청구항 5】제4항에 있어서,상기 베이스 레일은, 상기 베이스 부재의 레일 결합홈에 금속접착제를 충전하고 그 레일 결합홈에 조립되는 것을 특징으로 하는 예압 조절형 리니어 가이드 시스템.
- 【청구항 6】제1항에 있어서,상기 볼베어링은, 상기 베이스 레일과 상기 슬라이드 레일에 대해 직접 접촉하여 구름 운동을 하는 스틸볼들과, 상기 스틸볼의 직경보다 작은 직경으로 형성되며 합성수지 소재로 형성되어 윤활 특성을 가지는 수지볼들로 구성된 것을 특징으로 하는 예압 조절형 리니어 가이드 시스템.
- 【청구항 7】제6항에 있어서,상기 스틸볼과 수지볼은 서로 번갈아 배치되는 것을 특징으로 하는 예압 조절형 리니어 가이드 시스템.
- 【청구항 8】제6항에 있어서,상기 베이스 레일과 슬라이드 레일에는 각각 상기 스틸볼들이 배치되는 안착홈이 형성되며, 그 안착홈에는 주위에 비해 돌출된 마찰 지지부가 형성되며 그 마찰 지지부에는 상기 스틸볼의 곡면에 대응하는 가공지지면이 형성되는 것을 특징으로 하는 예압 조절형 리니어 가이드 시스템.
- 【청구항 9】제1항에 있어서,상기 슬라이드 부재에 설치되어, 상기 베이스 부재에 대해 상기 슬라이드 부재를 구동하는 엑튜에이터와 상기 슬라이드 부재가 쉽게 결합되도록 하는 커플링;을 더 포함하며,상기 커플링은, 상기 슬라이드 부재에 결합되는 베이스와, 그 베이스에 회전 가능하게 결합되는 볼너트를 포함하는 것을 특징으로 하는 예압 조절형 리니어 가이드 시스템.
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JP2012512935A JP5712206B2 (ja) | 2009-05-28 | 2009-05-28 | 予圧調整用リニアガイドシステム |
CN200980160079.1A CN102449333B (zh) | 2009-05-28 | 2009-05-28 | 可调整预加载类型线性导引系统 |
KR1020107016178A KR101198858B1 (ko) | 2009-05-28 | 2009-05-28 | 예압 조절형 리니어 가이드 시스템 |
PCT/KR2009/002841 WO2010137755A1 (ko) | 2009-05-28 | 2009-05-28 | 예압 조절형 리니어 가이드 시스템 |
EP09845262.6A EP2436940A4 (en) | 2009-05-28 | 2009-05-28 | ADJUSTABLE PRELOAD TYPE LINEAR GUIDING SYSTEM |
US13/302,126 US8313239B2 (en) | 2009-05-28 | 2011-11-22 | Adjustable preload type linear guide system |
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US13/302,126 Continuation US8313239B2 (en) | 2009-05-28 | 2011-11-22 | Adjustable preload type linear guide system |
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WO2010137755A1 true WO2010137755A1 (ko) | 2010-12-02 |
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EP (1) | EP2436940A4 (ko) |
JP (1) | JP5712206B2 (ko) |
KR (1) | KR101198858B1 (ko) |
CN (1) | CN102449333B (ko) |
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JP2012528284A (ja) | 2012-11-12 |
US8313239B2 (en) | 2012-11-20 |
US20120128277A1 (en) | 2012-05-24 |
CN102449333A (zh) | 2012-05-09 |
EP2436940A4 (en) | 2013-05-01 |
CN102449333B (zh) | 2015-04-01 |
JP5712206B2 (ja) | 2015-05-07 |
KR20100133357A (ko) | 2010-12-21 |
EP2436940A1 (en) | 2012-04-04 |
KR101198858B1 (ko) | 2012-11-07 |
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