WO2006064734A1 - 転がり案内装置 - Google Patents
転がり案内装置 Download PDFInfo
- Publication number
- WO2006064734A1 WO2006064734A1 PCT/JP2005/022663 JP2005022663W WO2006064734A1 WO 2006064734 A1 WO2006064734 A1 WO 2006064734A1 JP 2005022663 W JP2005022663 W JP 2005022663W WO 2006064734 A1 WO2006064734 A1 WO 2006064734A1
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- WIPO (PCT)
- Prior art keywords
- groove
- ball
- rolling
- track rail
- load
- Prior art date
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Classifications
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
-
- 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
- F16C29/08—Arrangements for covering or protecting the ways
- F16C29/084—Arrangements for covering or protecting the ways fixed to the carriage or bearing body movable along the guide rail or track
- F16C29/086—Seals being essentially U-shaped, e.g. for a U-shaped carriage
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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
- F16C29/001—Bearings for parts moving only linearly adjustable for alignment or positioning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
-
- 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
- F16C29/08—Arrangements for covering or protecting the ways
- F16C29/084—Arrangements for covering or protecting the ways fixed to the carriage or bearing body movable along the guide rail or track
- F16C29/088—Seals extending in the longitudinal direction of the carriage or bearing body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
- F16C29/0638—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
- F16C29/0642—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls
Definitions
- the present invention is a rolling assembly in which a track rail and a moving block are assembled via a large number of balls, and an object to be mounted fixed to the moving block can freely reciprocate along the track rail.
- the present invention relates to a guide device, and more particularly, to a rolling guide device in which the moving block has an infinite circulation path of the ball and the moving block can continuously move along the track rail while circulating the ball infinitely. .
- a rolling guide device in which a moving block on which a movable body such as a table is continuously moved along a track rail is frequently used.
- the moving block is assembled to the track rail via a large number of balls, and the ball moves by applying a load between the moving block and the track rail.
- the movable body mounted on the block can be moved lightly with very little resistance along the track rail.
- the moving block is provided with an infinite circulation path of the ball, and by circulating the ball in the infinite circulation path, the moving block can move continuously along the track rail without interruption. It becomes possible.
- the track rail is formed with a ball rolling groove along the longitudinal direction, while the moving block is formed with a load rolling groove facing the ball rolling groove of the track rail.
- a load rolling path for the ball is formed by the ball rolling groove on the track rail side and the load rolling groove on the moving block side.
- the ball is in contact with the ball rolling groove on the track rail side and the load rolling groove on the moving block side, and is configured to roll while applying a load acting between them.
- a no-load rolling passage is formed in the moving block in parallel with the load rolling groove, and both ends of the no-load rolling passage are formed by a pair of direction change paths formed in an arc shape. Connected to the passage!
- the ball is released from the load at the end of the load rolling path and from the ball rolling groove of the track rail. Leave and enter the direction change road, and roll from this direction change path to the no-load rolling path.
- the ball that rolls in the no-load rolling path is returned to the ball rolling groove of the rail rail through the opposite direction change path, and rolls in the loaded rolling path again while applying a load.
- the moving block is equipped with an infinite circulation path for the ball that is continuous with the load rolling path, the direction change path, the no-load rolling path, and the direction change path.
- the moving block is composed of a block main body made of hardened steel and a pair of synthetic resin end caps fixed to both front and rear end faces of the block main body, and the load rolling groove is While the block body is formed by grinding, the unloaded rolling passage forms a through hole with an inner diameter larger than the diameter of the ball in the block body in parallel with the loaded rolling groove. It is a rolling path.
- the direction change path is formed in the end cap.
- Patent Document 1 Japanese Patent Laid-Open No. 10-009264
- Patent Document 2 Actual Fair 4 53459
- the present invention has been made in view of such problems, and an object of the present invention is to easily provide an infinite circulation path of a ball with respect to the moving block. Another object is to provide a rolling S guide device that can be manufactured easily and inexpensively by reducing the number of processing steps.
- a rolling guide device is assembled to a track rail in which a ball rolling groove is formed along a longitudinal direction and the track rail via a large number of balls.
- the ball has an infinite circulation path and is composed of a moving block that moves along a powerful track rail.
- the moving block includes a block main body to which an attached body is fixed, and a ball circulation plate that is attached to the block main body at a position facing the ball rolling surface of the track rail to form the infinite circulation path. It has become a thing equipped with.
- the ball circulation plate is formed with at least a load straight groove facing the rolling groove of the track rail and a no-load straight groove parallel to the load straight groove and opened toward the track rail. Then, the ball rolls while applying a load to the rolling groove of the track rail in the load straight groove of the ball circulation plate, and is guided to the track rail in the unloaded straight groove. However, it rolls with no load.
- the rolling guide device of the present invention as described above, only the mounting surface of the transported body such as a work table and the mounting position of the ball circulation plate are formed with respect to the block body constituting the moving block.
- the block body constituting the moving block.
- the ball rolls in the straight load groove formed in the ball circulation plate, not the block body, so the block body is made of an inexpensive material such as mild steel that does not require heat treatment such as quenching. It becomes possible to do.
- the ball circulation plate attached to the block body has rolling rail rolling grooves.
- a straight load groove that is parallel to the load straight groove is formed, but since these grooves are all open toward the track rail, the Before the circulation plate is assembled, it can be easily formed by a machining method such as cutting, and it can be machined by a general-purpose machine tool without using a dedicated machine tool. As a result, the ball circulation plate can also be formed at low cost, and the entire moving block can be easily produced at low cost.
- a pair of direction changing grooves for moving the ball between the load linear groove and the no-load linear groove can also be formed in the ball circulation plate.
- FIG. 1 is an exploded perspective view showing a first embodiment of a rolling guide apparatus to which the present invention is applied.
- FIG. 2 is a front sectional view of the rolling guide device shown in FIG.
- FIG. 3 is a perspective view showing a ball circulation plate of the rolling guide device shown in FIG. 1.
- FIG. 4 is an enlarged view showing a track groove of a ball circulation plate in the rolling guide device shown in FIG.
- FIG. 5 is an enlarged cross-sectional view showing a state of movement of a ball on a direction change path of a track groove
- FIG. 6 is an enlarged cross-sectional view showing an example in which the flat surface of the track rail faces the unloaded straight groove of the track groove.
- FIG. 7 is a perspective view showing a seal unit in which a stopper member and a side seal are integrated.
- FIG. 8 is a front sectional view showing an example of a rolling guide device in which the shape of the ball circulation plate is changed.
- FIG. 9 is an exploded perspective view showing a second embodiment of the rolling guide apparatus to which the present invention is applicable.
- FIG. 10 is a perspective view showing a ball circulation plate of the rolling guide device shown in FIG.
- FIG. 11 An enlargement showing the configuration of an infinite circulation path of balls in the rolling guide device shown in FIG. FIG.
- FIG. 12 is a front view showing the inner side surface of the end cap in contact with the moving block.
- FIG. 13 is a front sectional view showing a third embodiment of the rolling guide apparatus to which the present invention is applicable.
- FIG. 14 is a front sectional view showing a fourth embodiment of the rolling guide apparatus to which the present invention is applicable. Explanation of symbols
- FIG. 1 and 2 show a first embodiment of a rolling guide device to which the present invention is applied.
- the rolling guide device 1 includes a rail 10 that is fixed to a mounted portion such as a bed or a column, and a moving block that is assembled to the rail 10 via a large number of balls 2.
- the moving block 20 is configured to freely reciprocate on the track rail 10.
- the track rail 10 has a substantially rectangular cross section perpendicular to the longitudinal direction, and the bottom surface 11 serves as a fixed surface to the attached portion.
- fixing bolt mounting holes 12 are formed at predetermined intervals in the longitudinal direction. By fastening the fixing bolts passed through the mounting holes 12 to the mounting portion, the track rail 10 is covered. It can be firmly fixed to the mounting part.
- ball rolling grooves 13 are formed along the longitudinal direction.
- the ball rolling groove 13 is formed in a Gothic arch shape in cross section, and the ball 2 rolls in the ball rolling groove 13 while contacting at two points.
- a ball holding groove 14 is formed below the ball rolling groove 13.
- the ball holding groove 14 is formed at a depth substantially equal to or greater than the ball rolling groove 13 to prevent a load from acting on the ball 2 rolling in the ball holding groove 14. is doing.
- the ball rolling groove 13 and the ball holding groove 14 are separated by a flat portion 15. Note that the ball holding groove 14 has a width direction of the track rail 10. It is also used as an attached reference plane.
- the moving block 20 protrudes from the base portion 22 so as to face a base portion 22 having a mounting surface 21 of a movable body such as a table and both side surfaces of the track rail 10. And a pair of skirt portions 23, 23, and is formed in a substantially saddle-like cross section as a whole. Between the pair of skirt portions 23 and 23, there is a receiving groove in which the upper portion of the track rail 10 is loosely fitted. The base portion 22 and the skirt portion 23 of the moving block 20 have a slight gap with the track rail 10 in the receiving groove. Are facing each other.
- a tap hole 24 for fixing the movable body is formed in the base portion 22, and the movable body is fixed to the moving block 20 by fastening a fixing bolt passed through the movable body to the tap hole 24. You are able to do it.
- a side seal 25 is provided on the lower surface of each skirt portion 23 to seal the gap between the moving block 20 and the track rail 10 along the longitudinal direction of the track rail 10.
- a ball circulation plate 30 is fixed to each skirt portion 23 of the moving block 20 at a position facing the side surface of the track rail 10.
- the ball circulation plate 30 has a section that is perpendicular to the longitudinal direction and has a substantially triangular shape, and is fitted in a mounting groove 26 formed in the skirt portion 23 of the moving block 20.
- the ball circulation plate 30 is formed with a track groove 31 accommodating a large number of balls 2 at a position facing the side surface of the track rail 10.
- the track groove 31 includes a load straight groove 32 facing the ball rolling groove 13 of the track rail 10, a no-load straight groove 33 facing the ball holding groove 14 of the track rail 10, and a load straight groove 32 and no load.
- the load linear groove 33 is composed of a pair of direction changing grooves 34 and 34 that connect ends of the straight line groove 33.
- the force of the ball circulation plate 30 that presses the ball circulation plate 30 against the skirt portion 23 of the moving block 20 against the forceful ball circulation plate 30 due to the fact that its cross section is formed in a substantially triangular shape. Acts, the ball circulation plate 30 is positioned in the receiving groove 26 of the skirt portion 23 with respect to the height direction of the track rail 10 (up and down direction in the drawing). As a result, the moving block 20 is moved to the track rail 10 with respect to the height direction. Will be positioned.
- the ball rolling groove 13 of the track rail 10 and the load straight groove 32 of the track groove 31 facing the ball rolling groove 13 are formed in a Gothic arch shape, and the ball 2 Touches these grooves at two points.
- the contact direction of the ball 2 and the ball rolling groove 13 or the load linear groove 32 is inclined by 45 degrees up and down with respect to the normal direction of the side surface of the track rail 10 (left and right direction in FIG. 5).
- the block 20 can be loaded with any load acting in the direction other than the moving direction.
- the load rolling path of the ball 2 is formed by facing the ball rolling groove 13 of the track rail 10 and the load linear groove 32 of the ball circulation plate 30, and the ball 2 passes through the load rolling path.
- the moving block 20 holding the ball circulation plate 30 can freely reciprocate along the track rail 10.
- the unloaded straight groove 33 of the ball circulation plate 30 and the ball holding groove 14 of the track rail 10 are also formed in a Gothic arch shape in cross section.
- the distance between the ball holding groove 14 on the track rail 10 side and the unloaded straight groove 33 on the moving block 20 side facing each other is set larger than the diameter of the ball 2 accommodated in the track groove 31.
- a slight gap is created between the ball 2 and the track rail 10, and between the ball 2 and the moving block 20. Therefore, the ball 2 rolls in the no-load straight groove 33 of the moving block 20 in an unloaded state so as to lean against the ball holding groove 14 of the track rail 10, and this causes the ball 2 to be non-negative. It is held in the straight load groove 33. That is, the ball circulation plate 30
- the no-load rolling path of the ball 2 is formed by the opposing of the no-load straight groove 33 and the ball holding groove 14 of the track rail 10.
- the ball 2 rolls in the direction change groove 34 in an unloaded state.
- the direction changing groove 34 is gradually formed from the connecting portion with the load straight groove 32. It is formed so as to be deepest at a portion facing the flat portion 15 of the track rail 10. Then, it gradually becomes shallower as it approaches the no-load straight groove 33 and is connected to the no-load straight groove 33.
- the direction change groove 34 has a substantially semicircular track
- the ball 2 accommodated in the direction change groove 34 reverses its rolling direction
- the ball holding groove of the track rail 10 is reversed.
- the ball 2 enters the no-load rolling passage so that the side force also crawls down the ball holding groove 14 of the track rail 10.
- the distance between the ball holding groove 14 of the track rail 10 and the unloaded straight groove 33 of the moving block 20 is set slightly larger than the diameter of the ball 2 as described above, the ball 2 is loaded with an unloaded rolling path. In this state, no load is applied, and the ball 2 is pushed by the subsequent ball 2 to advance in the no-load rolling path.
- the ball 2 that has traveled in the no-load rolling path has a no-load straight groove 33 and a direction changing groove 34.
- the direction change groove 34 moves the ball 2 in the ball holding groove 14 of the track rail 10 toward the flat portion 15, so that the forceful ball 2 scoops up the ball holding groove 14 and causes a force S Then, it is lifted up to the flat part 15 of the track rail 10 and completely accommodated in the direction change groove 34 of the moving block 20. Then, the ball 2 accommodated in the direction change groove 34 reverses its rolling direction again, and the load rolling formed by the opposite of the ball rolling groove 13 of the track rail 10 and the load linear groove 32 of the moving block 20 is achieved. Enter the runway.
- the ball 2 enters the load rolling path so that the lateral force also descends the ball rolling groove 13 of the track rail 10, and the load is applied at the connection portion between the direction changing groove 34 and the load straight groove 32.
- the depth of the straight groove gradually becomes shallower, it shifts from an unloaded condition to a loaded condition.
- the ball 2 circulates in the track groove 31 of the ball circulation plate 30, and accordingly, the moving block 20 can continuously move along the track rail 10 without interruption. ing.
- the ball circulation plate 30 is mounted on the inner surface of the skirt portion 23 of the moving block 20 that faces the formation surface of the ball rolling groove 13 in the track rail 10.
- the track groove 31 formed in the ball circulation plate 30 forms an infinite circulation path for the ball 2, so that the configuration of the moving block 20 is extremely simple. Since the track groove 31 is open toward the side surface of the track rail 10, it can be easily formed by cutting the ball circulation plate 30 and so on. It is possible to adjust the depth of the load linear groove 32, the no-load linear groove 33, and the direction changing groove 34 with high accuracy. Further, at the time of processing, the track groove 31 can be formed in one step on the side surface of the moving block 20 like a single stroke.
- the moving block 20 since the track groove 31 including the load straight groove 32 is formed in the ball circulation plate 30, if the ball circulation plate 30 is subjected to a quenching process, the moving block 20 itself is subjected to a quenching process.
- the necessary moving block 20 can be formed using a relatively inexpensive material such as mild steel (for example, SS41). Further, by using such a material, it becomes possible to easily process the tap hole 24 of the mounting surface 21 of the movable body with respect to the moving block 20. Moving block 20 and ball circulation plate 30 These materials can be combined freely according to the rolling guide device to be assembled.
- the ball circulation plate 30 is a small part compared to the moving block 20, and only the track groove 31 is swung over the ball circulation plate 30, so that the entire ball circulation plate 30 is quenched. Is possible. This makes it possible to perform the quenching process easily and inexpensively as compared with the conventional rolling guide apparatus that performs carburizing and quenching only on the ball rolling portion of the moving block 20.
- the present invention is useful not only for producing a rolling guide device having a large ball diameter but also for producing an extremely small rolling guide device using a ball having a diameter of 1 mm or less.
- a ball holding groove 14 is formed on the track rail 10, and the ball holding groove 14 on the track rail 10 side and the unloaded straight groove 33 on the ball circulation plate 30 side are opposed to each other. Then, the unloaded straight groove 33 in the ball circulation plate 30 is formed shallower than the direction changing groove 34, and the ball 2 circulating in the track groove 31 is changed from the direction changing groove 34 to the unloaded straight groove 33 as shown in FIG. It was configured to float on the surface of the ball circulation plate 30 as it entered. However, as shown in FIG. 6, the no-load straight groove 33 constituting the track groove 31 is formed in a groove having a continuous depth from the deepest part of the direction changing groove 34, and the no-load straight groove 33 and the track rail are formed. The ten side surfaces may be opposed to form a no-load rolling passage. With this configuration, the formation of the ball holding groove 14 on the track rail 10 can be omitted, and the track rail 10 can be easily processed.
- a seal unit 50 in which a pair of side seals 25 fixed to the skirt portion 23 of the block 20 is integrated may be formed.
- This seal unit 50 is formed by bending a pressed metal sheet, and a rubber seal lip that is in contact with the track rail 10 as an end seal 41 and a side seal 25 is fixed to a predetermined position of the powerful metal sheet. Is .
- the side block 25 and the end seal 41 can be positioned and fixed to the moving block 20 at a time by fitting the moving block 20 to the seal unit 50 and fixing it with screws or the like. The man-hours required to assemble the block 20 can be further reduced.
- the cross section perpendicular to the longitudinal direction of the ball circulation plate 30 is formed in a substantially triangular shape, and the mounting groove 26 of the moving block 20 into which the powerful ball circulation plate is fitted. was also formed in a similar shape.
- the ball circulation plate 30 is accurately positioned in the height direction and the width direction of the track rail 10 when fitted in the mounting groove 26 of the moving block 20, as shown in FIG.
- the cross section perpendicular to the longitudinal direction may have a substantially trapezoidal shape.
- FIG. 9 is a cross-sectional view showing a second embodiment of the rolling guide apparatus of the present invention.
- the track rail 10 is the same as that of the first embodiment described above, and the configuration of the infinite circuit of the ball 2 in the force moving block 20 is different from that of the first embodiment. That is, in the moving block 20 of the second embodiment, a pair of synthetic resin end caps 60 are fixed to both front and rear end surfaces in the moving direction of the powerful moving block 20, and the infinite circulation path of the ball 2 is moved to the moving block 20. It is formed by a ball circulation plate 70 attached to the end cap 60 and the end cap 60. Since the configuration of the moving block 20 and the track rail 10 is the same as that of the first embodiment, the same reference numerals as those of the first embodiment are given in FIG. 9, and detailed description thereof is omitted here.
- the ball circulation plate 70 mounted on the skirt portion 23 of the moving block 20 is formed in a substantially triangular cross section as in the first embodiment.
- the load linear groove 71 and the no-load linear groove 72 are formed in parallel with the ball rolling groove 13 of the track rail 10.
- the direction changing groove 34 as in the example is not formed.
- the loaded straight groove 71 and the unloaded straight groove 72 are open to the end face of the ball circulation plate 70.
- the cross-sectional shapes of the load straight groove 71 and the no-load straight groove 72 are the same as those in the first embodiment, and the ball straight groove 71 of the ball circulation plate 70 and the ball rolling groove 13 of the track rail 10 face each other. 2 load rolling path is formed, while the unloaded straight groove 72 of the ball circulation plate 70 and the track When the ball holding groove 14 of the ball 10 is opposed, a no-load rolling passage of the ball 2 is formed.
- the end cap 60 fixed to the moving block 20 is formed with a direction changing groove 61 for connecting the loaded rolling path and the unloaded rolling path of the ball 2 in communication. That is, when the pair of end caps 60 is fixed to the moving block 20, as shown in FIG. 11, the load straight groove 71 and the no-load straight groove 72 of the ball circulation plate 70 are connected to each other by the direction changing groove 61 of the end cap 60.
- the infinite circuit of Ball 2 is now complete. In order to introduce the ball 2 that was rolling while applying a load in the ball rolling groove 13 of the rail rail 10 into the direction changing groove 61, the direction changing groove 61 is connected to the load linear groove 71 from the connection portion.
- the direction changing groove 61 is formed by directly forming the direction changing groove 34 formed in the ball circulation plate 30 of the first embodiment in the end cap 60.
- an end seal 62 that seals a gap with the track rail 10 is attached to the end cap 60.
- the ball 2 circulates in the infinite circulation path formed by the ball circulation plate 70 and the end cap 60, and accordingly, the moving block 20 It is possible to move continuously along the track rail 10 without interruption.
- the ball circulation plate 70 is formed with only the load straight groove 71 and the no-load straight groove 72 that are not the track grooves, so the first embodiment Compared to this, the processing of the ball circulation plate 70 is easier.
- the direction changing groove 61 whose depth changes continuously is formed in the end cap 60 made of synthetic resin, and therefore, by using a molding method such as injection molding, a complicated direction can be obtained.
- the shape of the conversion groove 61 can be produced inexpensively and in large quantities.
- the rolling guide device of the second embodiment is less expensive than the rolling guide device of the first embodiment, although positioning and fixing work of the end cap 60 with respect to the moving block 20 is required. It is possible to produce.
- FIG. 13 is a cross-sectional view showing a third embodiment of the rolling guide apparatus of the present invention.
- the ball circulation plate 30 is formed in a substantially triangular cross section, and the covering ball circulation plate 30 is fitted into the mounting groove 26 of the moving block 20.
- the ball circulation plate 80 of this embodiment is formed in a substantially flat plate shape, and is configured to be locked to the inner surface of the skirt portion 23 of the moving block 20 by an engagement protrusion 81 formed on the back side. Yes.
- a load linear groove 82, an unloaded linear groove 83, and a track groove having a direction changing groove force are formed, while a track groove is formed on the back surface thereof.
- the engaging projection 81 is formed along the longitudinal direction of the road rail 10.
- the engaging projection 81 is projected in a semi-cylindrical shape with respect to the back surface of the ball circulation plate 80, and the engaging groove 81 in which the head of the engaging projection 81 is in sliding contact with the skirt portion 23 of the moving block 20. 84 is formed.
- a gap is formed between the inner side surface of the skirt portion 23 and the back surface of the ball circulation plate 80, and the ball circulation plate according to the load acting on the ball 2 rolling in the load straight groove 82. 80 is configured to be inclined with respect to the skirt portion 23.
- a biaxial rolling guide device is provided in parallel on a mounting portion such as a bed or a column, and a common table is provided for the moving block 20 of these rolling guide devices.
- a common table is provided for the moving block 20 of these rolling guide devices.
- FIG. 14 is a cross-sectional view showing a fourth embodiment of the rolling guide apparatus of the present invention.
- each skirt 23 of the moving block 20 is formed into a concave curved surface 91 having a constant curvature, and the pair of ball circulation plates 90 match these concave curved surfaces 91. It is formed in the shape to do. That is, the ball circulation plate 90 is formed in a substantially flat plate shape, and a track groove including a load straight groove 92, a no-load straight groove 93, and a direction changing groove is formed on the surface, while the moving block 20 is formed on the back surface. A convex curved surface 94 that matches the concave curved surface 91 of the skirt portion 23 is formed.
- the length of the concave curved surface 91 of the skirt 23 in the arc direction is longer than that of the convex curved surface 94 of the ball circulation plate 90.
- the ball circulation plate 90 can freely move along the concave curved surface 91 on the inner surface of the skirt 23. It is configured to be able to.
- the center of curvature O of the concave curved surface 91 of the skirt portion 23 is located at the center of the four rows of balls 2 that roll in the loaded straight groove 92 and the unloaded straight groove 93. For this reason, even if the moving block 20 is fixed to the movable body with the axis along the longitudinal direction of the track rail 10 as a center with respect to the track rail 10, the ball circulation plate 90 remains in the skirt portion 23. It is possible to absorb the moment load generated between the track rail 10 and the moving block 20 by moving along the concave curved surface 91. As a result, even when the mounting surface accuracy of the track rail 10 is poor, it is possible to prevent an excessive load from acting on the ball 2, and the movement of the moving block 20 relative to the track rail 10 can be smoothly performed. It is possible to hesitate.
- the rolling guide device can be manufactured more easily and at a lower cost than in the past.
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- General Engineering & Computer Science (AREA)
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006548805A JP4601626B2 (ja) | 2004-12-15 | 2005-12-09 | 転がり案内装置 |
Applications Claiming Priority (2)
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JP2004-363494 | 2004-12-15 | ||
JP2004363494 | 2004-12-15 |
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WO2006064734A1 true WO2006064734A1 (ja) | 2006-06-22 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/022663 WO2006064734A1 (ja) | 2004-12-15 | 2005-12-09 | 転がり案内装置 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP4601626B2 (ja) |
KR (1) | KR101149967B1 (ja) |
CN (1) | CN100538094C (ja) |
TW (1) | TW200626807A (ja) |
WO (1) | WO2006064734A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008038674A1 (fr) | 2006-09-29 | 2008-04-03 | Thk Co., Ltd. | Dispositif de guidage linéaire |
JP2009058004A (ja) * | 2007-08-30 | 2009-03-19 | Thk Co Ltd | 直線案内装置 |
WO2009041176A1 (ja) * | 2007-09-27 | 2009-04-02 | Thk Co., Ltd. | 直線案内装置 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8684605B2 (en) | 2008-03-07 | 2014-04-01 | Pacific Bearing Company | Guide rail |
US8235595B2 (en) | 2008-03-07 | 2012-08-07 | Pacific Bearing Company | Guide rail and method for manufacturing same |
CN102022468B (zh) * | 2010-11-24 | 2012-08-08 | 张志明 | 滑动阻尼装置 |
JP6185752B2 (ja) * | 2012-05-11 | 2017-08-23 | Thk株式会社 | 運動案内装置 |
CN104100634A (zh) * | 2013-04-02 | 2014-10-15 | 全研科技有限公司 | 线性滑动改良结构 |
CN106133396B (zh) * | 2014-04-14 | 2018-09-14 | 日本精工株式会社 | 滚珠丝杠 |
CN106195003A (zh) * | 2016-08-08 | 2016-12-07 | 洛阳轴研科技股份有限公司 | 一种弧形导轨轴承单元及使用该轴承单元的摇摆装置 |
CN106241236A (zh) * | 2016-08-26 | 2016-12-21 | 怀宁县明慧竹业有限公司 | 一种蒸笼运载装置 |
CN111043153A (zh) * | 2019-12-25 | 2020-04-21 | 嘉善万润精密机械股份有限公司 | 组合滑块及其封边结构 |
CN113757256A (zh) * | 2020-06-04 | 2021-12-07 | 加昌国际有限公司 | 滚动承载装置及其加工方法 |
KR102574783B1 (ko) * | 2021-05-21 | 2023-09-07 | 주식회사 이엠플러스정보기술 | Lm 가이드 및 그의 제조방법 |
CN115451015B (zh) * | 2022-08-16 | 2023-12-19 | 鸿富锦精密工业(衡阳)有限公司 | 直线导轨 |
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JPS6185716U (ja) * | 1984-11-10 | 1986-06-05 | ||
JPS63158319A (ja) * | 1986-12-23 | 1988-07-01 | Hiroshi Teramachi | 直線摺動用ボ−ルベアリング |
JPH03118317U (ja) * | 1990-03-20 | 1991-12-06 | ||
JP2003120669A (ja) * | 2001-10-18 | 2003-04-23 | Tsubakimoto Chain Co | リニアガイド用スライド部材及びリニアガイド部材 |
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2005
- 2005-12-09 KR KR1020077013333A patent/KR101149967B1/ko active IP Right Grant
- 2005-12-09 JP JP2006548805A patent/JP4601626B2/ja active Active
- 2005-12-09 WO PCT/JP2005/022663 patent/WO2006064734A1/ja active Application Filing
- 2005-12-09 CN CNB2005800432080A patent/CN100538094C/zh active Active
- 2005-12-13 TW TW094144144A patent/TW200626807A/zh unknown
Patent Citations (5)
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JPS5846226A (ja) * | 1981-09-11 | 1983-03-17 | Hiihaisuto Seikou Kk | ボ−ルスライドウエイ |
JPS6185716U (ja) * | 1984-11-10 | 1986-06-05 | ||
JPS63158319A (ja) * | 1986-12-23 | 1988-07-01 | Hiroshi Teramachi | 直線摺動用ボ−ルベアリング |
JPH03118317U (ja) * | 1990-03-20 | 1991-12-06 | ||
JP2003120669A (ja) * | 2001-10-18 | 2003-04-23 | Tsubakimoto Chain Co | リニアガイド用スライド部材及びリニアガイド部材 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008038674A1 (fr) | 2006-09-29 | 2008-04-03 | Thk Co., Ltd. | Dispositif de guidage linéaire |
EP2068016A1 (en) * | 2006-09-29 | 2009-06-10 | THK Co., Ltd. | Linear guidance device |
EP2068016A4 (en) * | 2006-09-29 | 2009-09-16 | Thk Co Ltd | LINEAR GUIDE DEVICE |
US7600918B2 (en) | 2006-09-29 | 2009-10-13 | Thk Co., Ltd. | Linear guidance device |
JP2009058004A (ja) * | 2007-08-30 | 2009-03-19 | Thk Co Ltd | 直線案内装置 |
WO2009041176A1 (ja) * | 2007-09-27 | 2009-04-02 | Thk Co., Ltd. | 直線案内装置 |
JP5570217B2 (ja) * | 2007-09-27 | 2014-08-13 | Thk株式会社 | 直線案内装置 |
TWI452212B (zh) * | 2007-09-27 | 2014-09-11 | Thk Co Ltd | Linear guide device |
Also Published As
Publication number | Publication date |
---|---|
CN100538094C (zh) | 2009-09-09 |
TWI375758B (ja) | 2012-11-01 |
KR101149967B1 (ko) | 2012-06-01 |
TW200626807A (en) | 2006-08-01 |
KR20070090920A (ko) | 2007-09-06 |
JPWO2006064734A1 (ja) | 2008-06-12 |
JP4601626B2 (ja) | 2010-12-22 |
CN101080581A (zh) | 2007-11-28 |
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