WO2014156443A1 - 軌道部材取付け穴用閉塞部材及び運動案内装置 - Google Patents
軌道部材取付け穴用閉塞部材及び運動案内装置 Download PDFInfo
- Publication number
- WO2014156443A1 WO2014156443A1 PCT/JP2014/054639 JP2014054639W WO2014156443A1 WO 2014156443 A1 WO2014156443 A1 WO 2014156443A1 JP 2014054639 W JP2014054639 W JP 2014054639W WO 2014156443 A1 WO2014156443 A1 WO 2014156443A1
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- WIPO (PCT)
- Prior art keywords
- mounting hole
- sleeve
- plug
- track
- closing
- Prior art date
Links
- 230000000903 blocking effect Effects 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 description 44
- 230000002093 peripheral effect Effects 0.000 description 9
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- 239000011347 resin Substances 0.000 description 7
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- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005489 elastic deformation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 230000000994 depressogenic effect Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Images
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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/14—Cap nuts; Nut caps or bolt caps
-
- 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
- F16C29/08—Arrangements for covering or protecting the ways
- F16C29/082—Arrangements for covering or protecting the ways fixed to the way
-
- 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
- F16C29/004—Fixing of a carriage or rail, e.g. rigid mounting to a support structure or a movable part
-
- 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
- F16C29/0647—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 with load directions in X-arrangement
Definitions
- the present invention relates to a blocking member for a track member mounting hole that blocks a track member mounting hole of a track member of a motion guide device.
- the motion guide device is constructed by assembling a moving member to a raceway member extending in the longitudinal direction via rolling elements such as a large number of balls and rollers.
- the track member is attached to the base, and the moving member is attached to a movable body such as a table.
- the motion guide device is used to guide a linear motion (linear motion or curved motion) of a movable body such as a table. By utilizing the rolling motion of the rolling element, the motion of the movable body can be guided with high accuracy and lightness.
- a plurality of track member mounting holes are formed on the upper surface of the track member at intervals in the longitudinal direction.
- Patent Document 1 discloses a closing member for a track member mounting hole including a closing member main body and an outer peripheral covering member provided on an outer peripheral surface of the closing member main body.
- the track member mounting hole closing member is attached to the track member as follows. First, the blocking member is temporarily placed on the track member so as to close the track member mounting hole. Next, the temporarily placed blocking member is driven into the track member mounting hole so that the upper surface of the block member and the surface of the track member are flush with each other.
- the outer peripheral covering member of the blocking member is sandwiched between the outer peripheral surface of the blocking member main body and the inner peripheral surface of the track member mounting hole and elastically deforms. Thereby, the position of the closing member is kept constant.
- the conventional track member mounting hole blocking member has a problem that workability is poor because the blocking member temporarily placed on the top surface of the track member is driven. In some cases, if the user is not used to work, the closing member may be damaged by driving the closing member diagonally.
- the outer diameter portion of the closing member is fixed only by an interference fit (elastic deformation), there is a problem that it is necessary to manage the inner diameter dimension and the surface roughness of the race member mounting hole. If the tightening margin is insufficient, the closing member may be depressed, tilted, or fall off. On the other hand, when the tightening margin is excessive, it is necessary to remove the flash generated from the outer diameter portion of the closing member, or the closing member is deformed and the appearance is lost.
- an object of the present invention is to provide a closing member for a track member mounting hole of a motion guide device that is easy to drive and can prevent the closing member from being depressed by an external force.
- one aspect of the present invention is used in a motion guide device in which a moving member is movably assembled to a track member, and blocks the track member mounting hole for mounting the track member to a base.
- a closing member for a mounting hole which is a first member placed on the head of a tightening member disposed in the track member mounting hole, a hole in the head of the tightening member, or a bottom surface of a recess formed in the track member
- a second member that closes the track member mounting hole, and the other of the first member and the second member is inserted by inserting one of the first member and the second member into the other.
- a rail that expands in the radial direction and the other of the first member and the second member is fixed to the inner surface of the track member mounting hole, the inner surface of the head hole of the tightening member, or the inner surface of the recess of the track member Mounting A closing member hole.
- the closing member since the closing member is self-supporting on the head of the tightening member or the like, the driving operation is stabilized, and unexpected deformation and collapse of the closing member due to driving are suppressed.
- the other of the first member and the second member expanded in the radial direction is fixed to the inner surface of the track member mounting hole or the like, the closing member can be prevented from being depressed or falling off due to an external force.
- FIG. 3A is a top perspective view
- FIG. 3B is a bottom perspective view of a rail mounting hole blocking member according to a first embodiment of the present invention.
- Sectional drawing of the closure member for rail attachment holes of the said embodiment FIG. 5A shows a state in which the closing member for the rail mounting hole according to the above embodiment is driven into the mounting hole of the rail (FIG. 5A shows a state where the closing member is self-supported on the head of the bolt, and FIG.
- FIG. 6A shows a state before the plug is inserted into the sleeve
- FIG. 6B shows a state during insertion
- 6 (c) shows the state after insertion)
- FIG. 8 shows a state where the closing member is self-supported on the head of the bolt when the rail mounting hole closing member of the second embodiment of the present invention is driven into the rail mounting hole.
- B shows the state in which the closing member is driven
- FIG. 9A is a process diagram when driving the rail mounting hole closing member according to the third embodiment of the present invention into the rail mounting hole (FIG. 9A shows a state in which the closing member is self-supporting on the head of the bolt.
- FIG. 10A shows a top perspective view and FIG. 10B is a bottom perspective view of a rail mounting hole blocking member according to a fourth embodiment of the present invention.
- FIG. 11 (a) shows a state where the closing member is self-supported on the head of the bolt when the rail mounting hole closing member according to the fourth embodiment of the present invention is driven into the rail mounting hole.
- (B) shows the state in which the closing member is driven)
- Sectional drawing FIG. 12 (a) shows the state which made the closure member self-supported on the head of a bolt, and FIG.12 (b) drive in the closure member of the closure member for rail attachment holes of 5th embodiment of this invention. Indicates the state)
- a rail attachment hole closing member (hereinafter simply referred to as a closing member) according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
- a closing member a rail attachment hole closing member (hereinafter simply referred to as a closing member) according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
- the motion guide device to which the closing member is attached will be described.
- the same components are denoted by the same reference numerals.
- FIG. 1 shows a perspective view of the motion guide device
- FIG. 2 shows a front view of the motion guide device with the end plate removed.
- the motion guide device is a rail 1 as a track member extending linearly in the longitudinal direction, and a moving member that is assembled to the rail 1 through a number of rolling elements 3 such as balls and rollers so as to be linearly movable in the longitudinal direction.
- a moving block 2 is a moving block 2.
- a plurality of rail mounting holes 5 serving as track member mounting holes are opened on the upper surface of the rail 1 (that is, the surface opposite to the base) at intervals in the longitudinal direction.
- a bolt 4 such as a hexagon socket head bolt is inserted into the rail mounting hole 5 as a fastening member for fixing the rail 1 to the base.
- the rail mounting hole 5 has a counterbore portion 5 a having a diameter larger than the head portion 4 a of the bolt 4 and a bolt insertion hole 5 b slightly larger than the screw portion 4 b of the bolt 4. They are formed concentrically (see also FIG. 5 (a)).
- the height of the counterbore 5a is set higher than the height of the head 4a of the bolt 4 so that the bolt 4 is completely buried in the rail mounting hole 5.
- the head 4 a of the bolt 4 is seated on the seating surface of the counterbore portion 5 a of the rail 1, and the rail 1 is fixed to the base 8.
- a movable body such as a table that moves linearly is attached to the upper surface of the moving block 2 using a bolt (not shown).
- 1 and 2 show a state in which the bolt 4 is passed through the rail mounting hole 5 of the rail 1 and the bolt 4 is fastened to the base 8. Thereafter, the rail mounting hole 5 is closed by the closing member.
- FIGS. 1 and 2 show a state before the rail mounting hole 5 is closed by the closing member.
- the rail 1 has a substantially quadrangular cross section, and a plurality of rolling element rolling portions 1a in which the rolling elements roll and are formed on the upper surface and side surfaces thereof.
- the rolling element rolling part 1 a extends along the longitudinal direction of the rail 1. In this embodiment, a total of four rolling element rolling portions 1 a are formed on both sides of the rail 1.
- the moving block 2 includes a moving block body 11 and end plates 12 provided on both end surfaces of the moving block body 11 in the moving direction.
- the moving block body 11 includes a central portion 11-1 facing the upper surface of the rail 1 and side wall portions 11-2 extending downward from the left and right sides in the width direction of the central portion 11-1 and facing the left and right side surfaces of the rail 1. And comprising.
- the moving block main body 11 is formed with a loaded rolling element rolling part 2a facing the rolling element rolling part 1a of the rail 1 and a no-load return path 7 parallel to the loaded rolling element rolling part 2a.
- the end plate 12 is formed with an outer peripheral side of a direction changing path 6 ′ connecting the loaded rolling element rolling portion 2 a and the no-load return path 7.
- a rolling element circulation path is formed by the loaded rolling element rolling part 2a of the moving block 2, the no-load return path 7, and the direction changing path 6 '.
- a plurality of rolling elements 3 are arranged and accommodated in the rolling element circulation path.
- the plurality of rolling elements 3 are held in series by the retainer 8 so as to be freely rotatable.
- the retainer 8 includes a spacer 9 that is interposed between the rolling elements, and a band 10 that connects the spacer.
- seal members 13 corresponding to the outer shape of the rail 1 are attached to both end surfaces of the moving block 2 in the moving direction.
- the seal member 13 prevents foreign matter such as dust, dust, and sawdust from entering the inside of the moving block 2 and adhering to the rolling element 3.
- the motion guide device when used in an environment with a lot of dust, foreign matter also accumulates in the rail mounting hole 5 of the rail 1.
- the foreign matter accumulated in the rail mounting hole 5 cannot be removed by the seal member 13 that scrapes the upper surface of the rail 1 and may enter the moving block 2.
- the foreign matter that has entered the inside of the moving block 2 adheres to the rolling element rolling part 1a and the load rolling element rolling part 2a, and may hinder smooth rolling motion of the rolling element 3.
- the rail mounting hole 5 of the rail 1 is covered with a closing member 21 (see FIG. 5B).
- FIG. 3A shows a top perspective view of the closing member 21, and FIG. 3B shows a bottom perspective view of the closing member 21.
- the closing member 21 includes a sleeve 22 as a first member placed on the head 4a of the bolt 4, a plug 24 as a second member formed integrally with the sleeve 22, Is provided.
- FIG. 4 shows a cross-sectional view along the center line of the closing member 21.
- the sleeve 22 is cylindrical.
- the plug 24 includes a disk-shaped head portion 24a and a cylindrical shaft portion 24b having a smaller diameter than the outer diameter of the head portion 24a.
- the head portion 24a of the plug 24 has a role of covering the rail mounting hole 5, and the shaft portion 24b of the plug 24 has a role of entering the sleeve 22 and expanding the sleeve 22 in the radial direction.
- the center line of the plug 24 and the center line of the sleeve 22 coincide with each other, and the distal end portion of the outer periphery of the shaft portion 24b of the plug 24 and the end portion of the inner periphery of the sleeve 22 are coupled.
- the connecting portion 23 between the plug 24 and the sleeve 22 is formed with a cut 23a having a circular arc shape over the entire circumference so as to be easily separated.
- the plug 24 and the sleeve 22 are resin molded products.
- PP polypropylene
- PE polyethylene
- the material of the plug 24 and the sleeve 22 is not limited to resin, and may be a metal such as stainless steel, aluminum, or brass, and the materials may be different from each other.
- the plug 24 and the sleeve 22 may be integrally formed by bonding.
- the dimensions of the plug 24 and the sleeve 22 are as follows.
- the outer diameter ⁇ 1 of the head 24a of the plug 24 is equal to or smaller than the inner diameter ⁇ 2 (see FIG. 5A) of the counterbore portion 5a of the rail mounting hole 5.
- the outer diameter ⁇ 3 of the sleeve 22 is also equal to or smaller than the inner diameter ⁇ 2 of the counterbore portion 5a of the rail mounting hole 5.
- a clearance fit with a gap between them is used.
- the outer diameter ⁇ 4 of the shaft portion 24b of the plug 24 is larger than the inner diameter ⁇ 5 of the sleeve 22.
- an interference fit with a tightening space between them is used.
- the length L1 from the head 24a of the plug 24 to the sleeve 22 is such that when the plug 24 is driven until the upper surface 24a1 of the head 24a of the plug 24 is flush with the surface 1b of the rail 1,
- the clearance ⁇ 1 (see FIG. 5B) between the sleeve 22 and the sleeve 22 is set to open, that is, the plug 24 can be driven into the sleeve 22.
- the length from the head 24a of the plug 24 to the sleeve 22 is such that the top surface 24a1 of the head 24a of the plug 24 and the surface of the rail 1 when the closing member 21 is self-supported on the head 24a of the bolt 4 It is set longer than the length L2 up to 1b (see FIG.
- the plug 24 cannot be driven any further, and the upper surface 24a1 of the head portion 24a of the plug 24 is lifted from the surface 1b of the rail 1.
- the upper surface 24a1 of the head 24a of the plug 24 can be arranged in the same plane as the surface 1b of the rail 1.
- FIG. 5 shows a process diagram when driving the closing member 21 of this embodiment into the mounting hole 5 of the rail.
- the counterbore part 5a and the bolt insertion hole 5b are formed concentrically.
- the head 4a of the bolt 4 is seated on the seating surface of the counterbore part 5a of the rail 1, and the rail 1 is fixed on the base.
- the closing member 21 of this embodiment is installed in the rail mounting hole 5 after the bolt 4 is installed in the rail mounting hole 5.
- the closing member 21 is inserted into the counterbore part 5 a of the rail mounting hole 5, and the closing member 21 is made to stand on the head 4 a of the bolt 4. Since the fit between the sleeve 22 of the closing member 21 and the counterbore part 5a of the rail mounting hole 5 is a clearance fit, the insertion of the closing member 21 into the counterbore part 5a is easy. Even if it is called a clearance fit, the clearance between the sleeve 22 of the closing member 21 and the counterbore part 5a is very small. For this reason, if the closing member 21 is inserted into the rail mounting hole 5, the closing member 21 is positioned at the center of the rail mounting hole 5.
- the closing member 21 is driven into the rail mounting hole 5.
- the closing member 21 is preferably driven by placing a metal fitting 25 having a flat top and bottom surface on the closing member 21 and hitting the metal fitting 25 with a plastic hammer 26. You can also type 21. By driving the closing member 21 through the contact fitting 25, it is easy to drive the closing member 21 so that the upper surface of the closing member 21 is flush with the surface 1b of the rail 1.
- the sleeve 22 of the closing member 21 is placed on the head 4 a of the bolt 4.
- the closing member 21 before use is a single product, as shown in FIG. 5B, when the closing member 21 is driven, the plug 24 and the sleeve 22 of the closing member 21 are separated by brittle fracture.
- the closing member 21 functions separately as a plug 24 and a sleeve 22 of two parts.
- the plug 24 is press-fitted into the sleeve 22 because the shaft 24b of the plug 24 and the sleeve 22 are fitted (minus clearance is indicated by ⁇ 2). It expands in the radial direction (elastic deformation or plastic deformation).
- the sleeve 22 is fixed to the inner surface of the counterbore part 5a of the rail mounting hole 5 in a protruding manner.
- FIG. 6 shows the deformation of the plug 24 and the sleeve 22 when the plug 24 is inserted into the sleeve 22.
- FIG. 6A when the plug 24 and the sleeve 22 are integrated, the outer diameter ⁇ 1 of the head portion 24a of the plug 24 is larger than the outer diameter ⁇ 3 of the sleeve 22.
- FIG. 6B when the closing member 21 is driven, a crack 23b is obliquely formed in the connecting portion 23 of the plug 24 and the sleeve 22, the plug 24 and the sleeve 22 are separated, and the shaft portion 24b of the plug 24 is It is inserted inside the sleeve 22.
- the sleeve 22 expands in the radial direction, and the outer diameter ⁇ 3 of the sleeve 22 becomes larger than the outer diameter ⁇ 1 of the head portion 24a of the plug 24.
- the sleeve 22 is fixed to the inner surface of the counterbore part 5a of the rail mounting hole 5 in a protruding manner.
- FIG. 6C when the top surface 24a1 of the head 24a of the plug 24 is driven until it is flush with the surface 1b of the rail 1, the head 24a of the plug 24 A gap ⁇ 1 is opened between the sleeve 22 and the sleeve 22. A clearance is opened so that there is a driving allowance between the plug 24 and the head 4a of the bolt 4.
- FIG. 7 shows the closing member 31 of the second embodiment of the present invention.
- the closure member 31 of this embodiment includes a sleeve 32 as a first member and a plug 34 as a second member formed integrally with the sleeve 32.
- the plug 34 includes a disk-shaped head portion 34a and a shaft portion 34b extending from the head portion 34a in the vertical direction.
- the sleeve 32 is formed in a cylindrical shape.
- the sleeve 32 of this embodiment has a smaller diameter than the sleeve 22 of the closing member 21 of the first embodiment, and is inserted into the hole (hexagon wrench hole) of the head 4a of the bolt 4 (see FIG. 5A). Is done.
- FIG. 8 shows a process diagram when the closing member 31 of the second embodiment is driven into the mounting hole 5 of the rail.
- the sleeve 32 of the closing member 31 is inserted into the hole 4 a 1 of the head 4 a of the bolt 4, and the closing member 31 is self-supported in the hole 4 a 1 of the head 4 a of the bolt 4.
- the fit between the sleeve 32 of the closing member 31 and the hole 4a1 of the head 4a of the bolt 4 is set to a clearance fit.
- FIG. 9 shows a process diagram when driving the closing member 41 of the third embodiment of the present invention into the mounting hole 5 of the rail.
- the closing member 41 of this embodiment also has a sleeve 42 as a first member and a plug 44 as a second member formed integrally with the sleeve 42. And comprising.
- the plug 44 includes a disk-shaped head portion 44a and a shaft portion 44b extending from the head portion 44a in the vertical direction.
- the sleeve 42 includes a cylindrical main body portion 42a and a flange portion 42b projecting radially from the upper end portion of the main body portion 42a. The head portion 44a of the plug 44 is placed on the flange portion 42b.
- the plug 44 and the sleeve 42 are integrally formed by bonding.
- the sleeve 42 is inserted into the hole 4a1 (the hole for the hexagon wrench) of the head 4a of the bolt 4 in the same manner as the sleeve 32 of the second embodiment.
- the sleeve 42 of the closing member 41 is inserted into the hole 4 a 1 of the head 4 a of the bolt 4, and the closing member 41 is self-supported in the hole 4 a 1 of the head 4 a of the bolt 4.
- FIG. 9B when the closing member 41 is driven, the shaft portion 44 b of the plug 44 is inserted into the main body portion 42 a of the sleeve 42.
- the shaft portion 44b of the plug 44 enters the main body portion 42a of the sleeve 42
- the shaft portion 44b of the plug 44 and the main body portion 42a of the sleeve 42 fit together, so that the main body portion 42a of the sleeve 42 expands in the radial direction ( Elastic deformation or plastic deformation).
- the main body portion 42 a of the sleeve 42 is fixed in such a manner as to stretch into the hole 4 a 1 of the head 4 a of the bolt 4.
- the flange portion 42 b of the sleeve 42 is bent so that the shaft portion 44 b of the plug 44 can enter the main body portion 42 a of the sleeve 42.
- FIG. 10A shows a top perspective view of the closing member 51 of the fourth embodiment of the present invention
- FIG. 10B shows a bottom perspective view.
- the closing member 51 of this embodiment is formed by connecting a cover 52 made of a thin plate to the head of the plug 24. Since the structure of the plug 24 and the sleeve 22 is the same as that of the plug 24 and the sleeve 22 of the first embodiment, the same reference numerals are given and description thereof is omitted.
- the cover 52 is formed in a rectangular shape elongated in the length direction of the rail 1.
- the cover 52 is provided to cover the plurality of rail attachment holes 5 that are opened in the upper surface of the rail.
- the plug 24 and the sleeve 22 are fixed to both ends in the length direction of the cover.
- a pair of recesses 1d having a circular cross section are formed at both ends of the rail 1 in the longitudinal direction at positions away from the rail mounting holes 5.
- a pair of plugs 24 and a sleeve 22 are inserted into the pair of recesses 1d.
- a cover mounting groove 1 e having a depth equal to the thickness of the cover 52 is formed on the upper surface of the rail 1.
- the closing member 51 of this embodiment is mounted on the rail 1 as follows. As shown in FIG. 11A, the sleeve 22 of the closing member 51 is inserted into the recess 1d of the rail 1, and the sleeve 22 is placed on the bottom surface of the recess 1d. Next, as shown in FIG. 11B, when the closing member 51 is driven, the shaft portion 24 b of the plug 24 is inserted into the sleeve 22. When the shaft portion 24b of the plug 24 enters the sleeve 22, the sleeve 22 expands in the radial direction (elastic deformation or plastic deformation). As a result, the sleeve 22 is fixed in such a manner as to stretch on the inner surface of the recess 1d.
- the cover 52 is mounted in the cover mounting groove 1e on the upper surface of the rail 1.
- the closing member 51 can be self-supported on the bottom surface of the recess 1d of the rail 1, or like the closing members 21, 31, 41 of the first to third embodiments.
- the closing members 21, 31, 41 can be made to stand on the head 4 a of the bolt 4.
- FIG. 12 shows a closing member 61 according to a fifth embodiment of the present invention.
- the sleeves 22, 32, 42 as the first members are placed on the head 4a of the bolt 4, etc., and the plugs 24, 34 and 44 block the rail mounting hole 5, but in the closing member 61 of the fifth embodiment, the plug 62 as the first member is placed on the head 4a of the bolt 4 as shown in FIG. Then, the sleeve 64 as the second member closes the rail mounting hole 5.
- the plug 62 is formed in a disk shape.
- the sleeve 64 includes a disk-shaped head portion 64a and a cylindrical peripheral wall portion 64b provided around the head portion 64a.
- the plug 62 After placing the closing member 61 on the head 4 a of the bolt 4, when the closing member 61 is driven, the plug 62 is inserted into the sleeve 64. Then, since the outer diameter of the plug 62 is larger than the inner diameter of the peripheral wall 64b of the sleeve 64, the peripheral wall 64b of the sleeve 64 expands in the radial direction as shown in FIG. 5 is fixed to the inner surface and the like.
- the closing members 21, 31, 41, 51, 61 are fixed to the counterbore part 5 a using the radial expansion of the sleeves 22, 32, 42, 64, and the closing members 21, 31, 41, 51, 61 are Since the structure does not depend on the fitting strength with the rail mounting hole 5, the inner diameter and the surface roughness of the counterbore part 5 a of the rail mounting hole 5 are used for mounting the blocking members 21, 31, 41, 51, 61. There is no need to perform special dimension management (for example, making the surface roughness of the counterbore part 5a smaller while making the inner diameter of the counterbore part 5a smaller). Since the accuracy management of the counterbore part 5a of the rail mounting hole 5 can be managed with general tolerances, the management cost can be reduced. Even if variations occur in the diameter and depth of the counterbore 5a, these variations can be absorbed.
- the plug and the sleeve are manufactured from the same resin material, but can also be manufactured by two-color molding using different resin materials. It is also possible to use a hard resin material for the plug and a soft resin material for the sleeve. Moreover, metal materials, such as brass, aluminum, and stainless steel, or metal materials having different strengths can be used for the plug and the sleeve.
- the plug and the sleeve are integrally formed, but the plug and the sleeve may be separated. In this case, in order to facilitate centering of the plug and the sleeve, it is desirable that the contact surface between the plug and the sleeve be formed in a taper.
- An O-ring may be wound around the head of the plug, and the clearance between the plug and the rail mounting hole may be eliminated by the O-ring.
- the sleeve is fixed to the inner surface of the counterbore portion of the rail mounting hole.
- a recess (second counterbore portion) having a larger diameter than the counterbore portion is formed in the rail mounting hole, and the sleeve is recessed (first The sleeve can be fixed to the inner surface of the recess (second counterbore part) by placing it on the bottom surface of the second counterbore part and driving in the plug.
- a clearance fit is used for the fit between the head of the plug and the counterbore of the rail mounting hole, but an interference fit can also be used.
- an interference fit can also be used. In this case, since it is fixed to the rail mounting hole at two places, the head portion of the plug and the sleeve, the position driven against the external force is more difficult to be displaced.
- the present invention is a sliding type in which the rolling element is not interposed between the rail and the moving block. It can also be applied to other motion guide devices.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Claims (5)
- 軌道部材に移動部材が移動可能に組み付けられる運動案内装置に用いられ、前記軌道部材をベースに取り付けるための軌道部材取付け穴を塞ぐ軌道部材取付け穴用閉塞部材であって、
前記軌道部材取付け穴に配置される締付け部材の頭部、前記締付け部材の頭部の穴、又は前記軌道部材に形成される凹部の底面に載せられる第一部材と、
前記軌道部材取付け穴を塞ぐ第二部材と、を備え、
前記第一部材及び前記第二部材のいずれか一方を他方に挿入することによって、前記第一部材及び前記第二部材の他方が径方向に膨張し、前記第一部材及び前記第二部材の他方が前記軌道部材取付け穴の内面、前記締付け部材の頭部の穴の内面又は前記軌道部材の前記凹部の内面に固定される運動案内装置の軌道部材取付け穴用閉塞部材。 - 前記第一部材と前記第二部材とが一体に形成されており、
前記軌道部材取付け穴用閉塞部材を打ち込むことによって、前記第一部材と前記第二部材とが分離することを特徴とする請求項1に記載の運動案内装置の軌道部材取付け穴用閉塞部材。 - 前記第一部材は、スリーブであり、
前記第二部材は、前記軌道部材取付け穴を塞ぐ頭部と、前記スリーブに挿入され、前記頭部よりも小径の軸部と、を備えるプラグであり、
前記プラグの前記頭部の上面が前記軌道部材の表面と同一平面になるまで前記プラグを前記スリーブに挿入するとき、さらに打ち込み代があるように、前記頭部と前記スリーブとの間にすきまが開くことを特徴とする請求項1又は2に記載の運動案内装置の軌道部材取付け穴用閉塞部材。 - 軌道部材と、
前記軌道部材に移動可能に組み付けられる移動部材と、
請求項1又は2に記載の軌道部材取付け穴用閉塞部材と、を備える運動案内装置。 - 軌道部材と、
前記軌道部材に移動可能に組み付けられる移動部材と、
請求項3に記載の軌道部材取付け穴用閉塞部材と、を備える運動案内装置。
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DE112014001707.8T DE112014001707T5 (de) | 2013-03-27 | 2014-02-26 | Verschlusselement für ein Laufbahnelement-Montageloch und eine Bewegungsführungsvorrichtung |
CN201480017723.0A CN105051385A (zh) | 2013-03-27 | 2014-02-26 | 轨道构件安装孔用闭塞构件以及运动引导装置 |
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JP2013066718A JP5819877B2 (ja) | 2013-03-27 | 2013-03-27 | 軌道部材取付け穴用閉塞部材及び運動案内装置 |
JP2013-066718 | 2013-03-27 |
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CN (1) | CN105051385A (ja) |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US4708550A (en) * | 1980-11-18 | 1987-11-24 | The Titan Manufacturing Co. Pty. Ltd. | Resistance between nut and bolt |
US5788442A (en) * | 1996-04-22 | 1998-08-04 | Ina Walzlager Schaeffler Kg | Sealing arrangement for bores |
JP2002002551A (ja) * | 2000-06-21 | 2002-01-09 | Inoac Corp | 閉塞栓 |
JP2003145391A (ja) * | 2001-10-26 | 2003-05-20 | Ina-Schaeffler Kg | リニアガイドのカバーベルト装置 |
JP2010190317A (ja) * | 2009-02-18 | 2010-09-02 | Nsk Ltd | リニアガイド装置のキャップ |
JP2012172750A (ja) * | 2011-02-21 | 2012-09-10 | Thk Co Ltd | レール取付孔の閉塞構造及びこれを用いた運動案内装置 |
-
2013
- 2013-03-27 JP JP2013066718A patent/JP5819877B2/ja active Active
-
2014
- 2014-02-26 CN CN201480017723.0A patent/CN105051385A/zh active Pending
- 2014-02-26 WO PCT/JP2014/054639 patent/WO2014156443A1/ja active Application Filing
- 2014-02-26 DE DE112014001707.8T patent/DE112014001707T5/de active Pending
- 2014-03-25 TW TW103111039A patent/TWI614421B/zh active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4708550A (en) * | 1980-11-18 | 1987-11-24 | The Titan Manufacturing Co. Pty. Ltd. | Resistance between nut and bolt |
US5788442A (en) * | 1996-04-22 | 1998-08-04 | Ina Walzlager Schaeffler Kg | Sealing arrangement for bores |
JP2002002551A (ja) * | 2000-06-21 | 2002-01-09 | Inoac Corp | 閉塞栓 |
JP2003145391A (ja) * | 2001-10-26 | 2003-05-20 | Ina-Schaeffler Kg | リニアガイドのカバーベルト装置 |
JP2010190317A (ja) * | 2009-02-18 | 2010-09-02 | Nsk Ltd | リニアガイド装置のキャップ |
JP2012172750A (ja) * | 2011-02-21 | 2012-09-10 | Thk Co Ltd | レール取付孔の閉塞構造及びこれを用いた運動案内装置 |
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DE112014001707T5 (de) | 2015-12-17 |
JP2014190438A (ja) | 2014-10-06 |
TW201447127A (zh) | 2014-12-16 |
JP5819877B2 (ja) | 2015-11-24 |
CN105051385A (zh) | 2015-11-11 |
TWI614421B (zh) | 2018-02-11 |
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