WO2013125392A1 - ころ整列装置およびころ整列方法 - Google Patents
ころ整列装置およびころ整列方法 Download PDFInfo
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- WO2013125392A1 WO2013125392A1 PCT/JP2013/053262 JP2013053262W WO2013125392A1 WO 2013125392 A1 WO2013125392 A1 WO 2013125392A1 JP 2013053262 W JP2013053262 W JP 2013053262W WO 2013125392 A1 WO2013125392 A1 WO 2013125392A1
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- WIPO (PCT)
- Prior art keywords
- roller
- alignment
- rollers
- space
- alignment space
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/10—Aligning parts to be fitted together
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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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/06—Placing rolling bodies in cages or bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
- F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
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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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49643—Rotary bearing
- Y10T29/49679—Anti-friction bearing or component thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49643—Rotary bearing
- Y10T29/49679—Anti-friction bearing or component thereof
- Y10T29/49682—Assembling of race and rolling anti-friction members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53104—Roller or ball bearing
Definitions
- the present invention is used when assembling a roller bearing having a plurality of rollers, etc., and in order to incorporate the rollers inside an outer ring constituting the roller bearing, a roller alignment device and a roller alignment for aligning the rollers in an annular shape Regarding the method.
- ⁇ A radial roller bearing is incorporated in the rotation support part for supporting the rotating shaft while supporting a large radial load.
- a so-called full-roller type radial roller bearing is used in which the load capacity is increased without providing a cage.
- FIG. 11 shows an assembling apparatus having a conventional structure described in Japanese Patent Laid-Open No. 5-329721.
- the assembling apparatus 1 includes an alignment guide member 2, a guide bar 3, a push-in cylinder 4, a roller supply unit 5, a shutter member 6, and a pair of chuck members 7a and 7b.
- the alignment guide member 2 is provided with a through-hole 8 penetrating in the axial direction at the center and having a funnel-shaped receiving portion at the top.
- the guide bar 3 is arranged in the vertical direction (vertical direction in FIG. 11), and its base end is connected to the output shaft 10 of the electric motor 9, and its tip is loosely inserted into the through hole 8.
- a plurality of grooves 11 are formed at equal intervals in the circumferential direction on the outer peripheral surface of the tip portion of the guide bar 3.
- the push-in cylinder 4 is disposed around an intermediate portion of the guide bar 3 so as to be capable of relative displacement in the axial direction with respect to the guide bar 3.
- the roller supply means 5 sequentially supplies a plurality of rollers R toward an annular alignment space 12 formed between the inner peripheral surface of the through hole 8 and the outer peripheral surface of the guide bar 3.
- the shutter member 6 is provided to be horizontally movable along the lower end surface of the alignment guide member 2, and can open and close the lower end opening of the through hole 8.
- the pair of chuck members 7a and 7b have concave arc-shaped holding portions on their mutually opposing surfaces, and can move in the distance (horizontal movement).
- a plurality of rollers R are directed toward the alignment space 12 via the receiving part of the through-hole 8 by the roller supply unit 5 with the lower end opening of the through-hole 8 being closed by the shutter member 6.
- the rollers R that have contacted the outer peripheral surface of the guide bar 3 are rotated by the rotation of the guide bar 3 and are aligned in parallel with each other in an annular shape in the alignment space 12.
- the group of rollers G arranged in an annular shape is held by a pair of holding portions of the chuck members 7a and 7b, and the shutter member 6 is moved to expose the lower end opening of the through hole 8.
- the roller group G is pushed downward from the alignment space 12 by the distal end surface (lower end surface) of the push-in cylinder 4 by relative displacement of the push-in cylinder 4 downward, and is provided below the alignment guide member 2. It is incorporated inside the outer ring W.
- the assembly device 1 having the conventional structure allows the plurality of rollers R to be arranged in an annular shape in the alignment space 12 and the group of rollers G to be incorporated into the inner side of the outer ring W at a time, a full-roller type radial roller bearing The work efficiency of the assembly work can be improved.
- Japanese Patent Application Laid-Open No. 2008-68374 discloses an annular formed between a cylindrical inner peripheral surface of a housing and an outer peripheral surface of a central axis arranged in a horizontal direction in order to align a plurality of rollers in an annular shape.
- a roller bearing assembling apparatus that is configured so that rollers arranged in parallel in the alignment space are sequentially dropped in a direction parallel to the axial direction and rotated by the central shaft, and is simplified and miniaturized. It is disclosed.
- this assembling apparatus also has the same problem in that the roller may be caught between the outer peripheral surface of the central shaft and the inner peripheral surface of the housing, and the roller rolling surface may be damaged.
- the roller R is inclined or dropped from the inner side of the outer ring W until the inner ring is assembled inside the roller group G.
- a holder having an elastically reduced diameter is inserted inside the roller group G and held. It is disclosed that the roller R is pressed and held toward the outer ring raceway formed on the inner peripheral surface of the outer ring W by the elasticity of the tool.
- the roller R may be inclined or dropped immediately after the roller group G is assembled and before the holder is inserted.
- An object of the present invention is to provide a roller aligning apparatus and a roller aligning method that can effectively prevent a roller rolling surface from being damaged when aligning a plurality of rollers in an aligning space.
- the roller alignment device of the present invention constitutes a part of a roller bearing assembly device, and a plurality of rollers arranged in series in the axial direction are subjected to a predetermined force by a force acting in the axial direction of the rollers.
- the roller alignment apparatus of the present invention includes a jig body, roller supply means, and alignment fluid supply means.
- the jig body includes an alignment space having a predetermined space shape such as an annular shape or a linear shape.
- the alignment space is configured such that a plurality of rollers can be aligned in parallel in the length direction, and the width direction thereof coincides with the axial direction of the rollers in a state where the rollers are aligned. .
- the roller supply means arranges the rollers in series in the axial direction in a direction coinciding with the width direction of the alignment space, which is the same direction as the axial direction of the rollers in a state where the rollers are aligned in the alignment space. In this state, the rollers are sequentially supplied to the roller supply position in the alignment space.
- the alignment fluid supply means is configured so that the rollers are sequentially supplied to the roller supply position by the roller supply means from a direction perpendicular to the width direction of the alignment space (the roller supply direction). Fluid is ejected so that the rollers move in the length direction of the alignment space.
- the jig body is provided so as to be relatively displaceable in the width direction of the alignment space with respect to other members constituting the jig body, and its end surface constitutes one end surface in the width direction of the alignment space. It is preferable to provide a jig.
- the roller supply means includes a chute portion that can store the roller therein, and a roller supply fluid supply means that generates a flow of fluid toward the alignment space inside the chute portion. .
- roller alignment device of the present invention can be applied to both the case where the alignment space is annular and the case where the alignment space is linear.
- the roller that is first supplied into the alignment space and moves in the length direction of the alignment space is stopped on the front side of the roller supply position. It is preferable to provide a stopper.
- the roller alignment method of the present invention constitutes a part of a roller bearing assembling method, and a plurality of rollers arranged in series in the axial direction are subjected to a predetermined force by a force acting in the axial direction of the rollers.
- the roller alignment method of the present invention is a method of aligning a plurality of rollers in parallel with each other in the length direction of an alignment space having a predetermined space shape such as an annular shape or a linear shape, and in the width direction of the alignment space.
- the rollers are arranged in series in the axial direction, and in a state where the axial direction of the rollers and the width direction of the alignment space match, the rollers are sequentially supplied to the roller supply position of the alignment space, For each of the rollers supplied to the roller supply position, the fluid is ejected from a direction orthogonal to the width direction of the alignment space (supply direction of the roller), thereby causing the rollers to have a length of the alignment space. Move in the direction.
- the roller supplied to the roller supply position is moved in the length direction of the alignment space and separated from the roller supply position, so that the next roller among the rollers is the roller. It is preferable to be configured to be supplied to the supply position.
- At least a part of the force acting in the axial direction of the roller is constituted by a fluid flow toward the alignment space, and when the roller is supplied to the roller supply position, the fluid flow is reduced. It is preferable to temporarily stop the flow of the fluid when acting on the roller and moving the roller supplied to the roller supply position in the length direction of the alignment space.
- the “roller” includes a needle having a larger axial length (a larger aspect ratio) than a diameter.
- the roller alignment apparatus and the roller alignment method of the present invention it is possible to align a plurality of rollers in the alignment space while effectively preventing damage to the rolling surfaces of the rollers.
- the rollers are moved in the length direction of the alignment space, and the next roller is repeatedly supplied to the alignment space, so that the plurality of rollers are properly aligned in the alignment space. be able to.
- the alignment time can be easily shortened by increasing the speed of the fluid ejected toward the rollers or increasing the ejection amount.
- FIG. 1 is a plan view schematically showing an alignment apparatus constituting the assembly apparatus of the first example of the embodiment of the present invention with a part thereof omitted.
- FIG. 2 is a cross-sectional view taken along line AOBC in FIG.
- FIG. 3 is a cross-sectional perspective view schematically showing the alignment apparatus shown in FIG. 1 with a part thereof omitted.
- FIG. 4 is an enlarged view of the central portion of FIG.
- FIG. 5 is an enlarged view of a portion D in FIG.
- FIG. 6 is a cross-sectional view showing an insertion jig constituting the assembly apparatus of the first example of the embodiment of the present invention.
- FIG. 1 is a plan view schematically showing an alignment apparatus constituting the assembly apparatus of the first example of the embodiment of the present invention with a part thereof omitted.
- FIG. 2 is a cross-sectional view taken along line AOBC in FIG.
- FIG. 3 is a cross-sectional perspective view schematically showing the alignment apparatus shown in FIG
- FIG. 7 is a cross-sectional view showing the holding member of the insertion jig constituting the assembly apparatus of the first example of the embodiment of the present invention.
- FIG. 8A is a cross-sectional view of the assembly apparatus before the roller group is moved from the alignment apparatus shown in FIG. 1 to the insertion jig
- FIG. 8C is a cross-sectional view of the assembling apparatus showing a state after the roller group is moved to the tool
- FIG. 8C is a cross-sectional view of the assembling apparatus showing a state after the roller group and the holding member are assembled from the insertion jig to the outer ring.
- FIG. 9 is a vertical cross-sectional view showing the alignment device constituting the assembly device of the second example of the embodiment of the present invention in a state where a part thereof is omitted.
- 10 is a cross-sectional view taken along line EE in FIG.
- FIG. 11 is a partial sectional view showing an assembling apparatus for a full-roller type radial roller bearing having a conventional structure.
- the assembly device 13 includes an alignment device 14 and an insertion jig 15 and is used to incorporate a plurality of rollers R inside an outer ring W constituting a full-roller type radial roller bearing.
- the alignment device 14 of the present invention includes a jig body 16, roller supply means 17, and alignment fluid supply means 18.
- the jig body 16 includes a guide cylinder 19, a guide shaft 20, an extrusion jig 21, and a lid (not shown), and a plurality of rollers are arranged in parallel in a portion surrounded by these members.
- An alignment space 26 having a predetermined spatial shape that can be aligned with each other is formed.
- the guide tube 19 has a stepped cylindrical shape, and includes a thick part 22 on the inner diameter side half and a thin part 23 on the outer diameter side half.
- a through hole 24 penetrating in the axial direction is formed at the center of the thick portion 22.
- the thin portion 23 is in an annular shape and is provided so as to protrude radially outward from the outer peripheral surface of one end portion (lower end portion) in the axial direction of the thick portion 22.
- the guide shaft 20 has a cylindrical shape and is loosely inserted into the through hole 24 concentrically with the through hole 24. 1/2 of the difference [delta] between the outer diameter D 20 of the inner diameter d 24 and the guide shaft 20 of the through-hole 24 is slightly larger than the diameter D R of the roller R ( ⁇ / 2> D R ).
- a roller supply position S (FIG. 1, FIG. 1) is a position where a roller R is supplied from the roller supply means 17 on a part of the outer peripheral surface of the guide shaft 20. Cutouts 43 are formed in portions facing the diagonal lattice portions in FIGS. 4 and 5.
- the extrusion jig 21 has a flanged cylindrical shape, and is inserted into the through hole 24 from the lower side of the guide tube 19 with one axial end portion (upper end portion) inserted into the guide shaft 20. Further, an outward flange 25 is provided at the other axial end portion (lower end portion) of the pushing jig 21.
- the outer diameter D 21 of the portion deviated from the outward flange portion 25 in the axial direction is slightly smaller than the inner diameter d 24 of the through-hole 24 (D 21 ⁇ d 24) .
- the inner diameter d 21 of the extrusion jig 21 is slightly larger than the outer diameter D 20 of the guide shaft 20 (d 21> D 20) .
- the outer diameter D 25 of the outward flange 25 is sufficiently larger than the inner diameter d 24 of the through hole 24 (D 25 > d 24 ).
- the extrusion jig 21 is in the axial direction (the front and back direction in FIG. 1, the direction in FIG. 2 and FIG. 3) with respect to the guide cylinder 19, the guide shaft 20, and the lid, which are other members constituting the jig body 16. It is provided so as to be relatively displaceable in the vertical direction.
- the axial position of the pushing jig 21 is set such that the distance m from one axial end surface (upper surface) to the upper surface of the guide tube 19 is the same. , and it regulates the slightly larger position than the axial dimension L R of the roller R.
- the lid is detachably provided on the upper surface of the thick portion 22 constituting the guide tube 19 and is fixed to the upper surface of the thick portion 22 when the alignment device 14 is operated. Close the opening. Further, a part of the lid is provided with a through hole for inserting a lower end portion of the chute portion 27 constituting the roller supply means 17.
- the inner peripheral surface of the through hole 24 provided in the guide cylinder 19, the outer peripheral surface of the guide shaft 20, the one end surface in the axial direction of the pushing jig 21, and the lower surface of the lid are defined.
- An annular space is an alignment space 26.
- the alignment space 26 has an annular shape, and has a space shape in which a plurality of rollers R can be aligned in parallel with each other in the circumferential direction that is the length direction thereof. With the plurality of rollers R aligned in the alignment space 26, the width direction of the alignment space 26 coincides with the axial direction of the rollers R.
- the extrusion jig 21 is relatively displaced in the width direction of the alignment space 26 that is the same direction as the axial direction of the extrusion jig 21 with respect to the guide cylinder 19, the guide shaft 20, and the lid body.
- One end surface (upper surface) in the axial direction which is an end surface of the, is movable in the alignment space 26 in the width direction (the axial direction of the extrusion jig 21 at the R).
- the roller supply means 17 includes a chute portion 27 and a roller supply fluid supply means 28, and a direction that coincides with the width direction of the alignment space 26 (front and back direction in FIG. 1, up and down direction in FIGS. 2 and 3).
- the rollers R are held in a state of being arranged in series in the axial direction, and the rollers R are sequentially supplied into the alignment space 26.
- Chute portion 27 is a hollow cylindrical, is formed to extend in the vertical direction inside the roller supply unit 17, slightly larger than the diameter D R of the inner diameter roller R, the total length aligned space 26
- the total length (16 in the illustrated example) of rollers R is longer than or equal to the axial length when the rollers R are arranged in series in the axial direction.
- the lower end portion of the chute portion 27 is positioned above a part of the alignment space 26 in the circumferential direction in a state of being inserted into a through hole formed in the lid body.
- a portion (a part in the circumferential direction) in which the lower end portion of the chute portion 27 is located above the alignment space 26 is a position where the roller R is supplied from the chute portion 27 into the alignment space 26.
- the roller supply position S (the oblique lattice position in FIGS. 1, 4 and 5).
- the roller supply fluid supply means 28 generates a flow of fluid in the chute portion 27 toward the alignment space 26 (from the upper side to the lower side), so that the roller R accommodated in the chute portion 27 is provided.
- the fluid pressure directed toward the alignment space 26 is applied.
- the fluid supplied by the roller supply fluid supply means 28 is air. That is, the roller supply fluid supply means 28 includes an air ejection nozzle 29 and an actuator connected to the compressor, and the tip of the air ejection nozzle 29 is connected to the upper end opening of the chute portion 27.
- the alignment fluid supply means 18 is directed from the direction perpendicular to the supply direction of the rollers R (the width direction of the alignment space 26) with respect to the rollers R supplied into the alignment space 26 by the roller supply means 17 (FIGS. 1 to 3).
- the fluid is ejected from the right side to the left side.
- the fluid supplied by the alignment fluid supply means 18 is air. That is, the alignment fluid supply means 18 includes an air ejection nozzle 30 and an actuator 31 connected to the compressor, and the air ejection nozzle 30 communicates with both inner and outer peripheral surfaces of the thick portion 22 constituting the guide cylinder 19. It is inserted into the insertion hole 32 that is formed so that the tip end portion faces the roller supply position S in the alignment space 26.
- the proximal end portion of the air ejection nozzle 30 is connected to an actuator 31 installed on the upper surface of the thin portion 23 constituting the guide tube 19. Further, in this example, the arrangement direction of the air ejection nozzle 30 is inclined by a predetermined angle ⁇ (see FIG. 4) with respect to the radial direction (radial direction) of the thick portion 22. Thereby, the air ejected from the air ejection nozzle 30 is easy to flow in the length direction (circumferential direction, arrow X direction in FIGS. 1, 4, and 5) in the alignment space 26.
- the actuator constituting the roller supply fluid supply means 28 and the actuator 31 constituting the alignment fluid supply means 18 are connected to a controller, and the respective operating states are controlled by this controller. Yes. Specifically, the actuator constituting the roller supply fluid supply means 28 is controlled to repeat execution and stop (ON and OFF), thereby supplying and not supplying air into the chute portion 27. The operation of the fluid pressure on the roller R is made intermittent by repeating it alternately at regular intervals, such as every 20 ms, every 50 ms, or every 100 ms. On the other hand, the actuator 31 constituting the aligning fluid supply means 18 is controlled so as to be continuously operated so that air is continuously supplied into the aligning space 26.
- the roller R first supplied to the alignment space 26 moves in the circumferential direction of the alignment space 26 and returns to the roller supply position S
- the roller R is moved to the roller supply position.
- Two stopper members 33 are provided for stopping on the front side of S.
- the stopper members 33 are rod-shaped, and are arranged one by one in parallel to the air ejection nozzle 30 on both the upper and lower sides of the air ejection nozzle 30 in a direction perpendicular to the direction in which the air ejection nozzle 30 is disposed.
- the front end surface of the stopper member 33 is a simple flat surface, but it can also be a partially cylindrical concave surface that can contact the entire outer surface of the roller R.
- the stopper member 33 is inserted into a pair of insertion holes 34 formed so as to communicate the inner and outer peripheral surfaces of the thick portion 22 constituting the guide cylinder 19.
- the insertion jig 15 includes a guide member 35, a holding member 36, a guide rod 37, and an extrusion cylinder 38.
- the insertion jig 15 can simultaneously incorporate the roller group G and the holding member 36 inside the outer ring W in a state where the holding member 36 is inserted inside the roller group G aligned in an annular shape by the aligning device 14. To do.
- a guide hole 39 is formed in the guide member 35 so as to penetrate the central portion in the axial direction.
- the holding member 36 is for pressing the rollers R constituting the roller group G toward the outer ring raceway of the outer ring W to hold the roller group G, and is disposed in the guide hole 39.
- the holding member 36 is made of an elastic material such as rubber or synthetic resin, and includes a cylindrical portion 40 and a bottom portion 41 that closes one axial end of the cylindrical portion 40.
- the bottomed cylindrical shape Outer diameter D 40 in a free state of the cylindrical portion 40, rollers incorporate the group G to the inside of the outer ring W or the guide hole 39, of the inscribed circle of the roller group G in the case where pressing these inner circumferential surface Slightly larger than the diameter.
- the holding member 36 having such a configuration can be inserted inside the roller group G inserted into the guide hole 39 in the axial direction in an elastically reduced diameter state.
- the guide rod 37 has a cylindrical shape, and is arranged in series with the holding member 36 in the guide hole 39 in the axial direction, and a portion near the outer periphery of one end surface (lower end surface) in the axial direction constitutes the holding member 36. It is in contact with the other axial end surface (upper end surface) of the cylindrical portion 40.
- the push-out cylinder 38 is for extruding the roller group G inserted into the guide hole 39 in the axial direction from the guide hole 39, and is inserted into the guide hole 39 without rattling. And provided around the guide rod 37.
- the pushing cylinder 38 has a flanged cylindrical shape, and one axial end portion (lower end portion) thereof is inserted into the guide hole 39 from above the guide member 35. Further, an outward flange 42 is provided at the other axial end portion (upper end portion) of the extruded cylinder 38.
- the pushing cylinder 38 is substantially the same as the pushing jig 21 of the aligning device 14 in terms of shape and dimensions.
- the alignment device 14 When operating the assembly device 13 of this example, first, the alignment device 14 is used to align the plurality of rollers R in an annular shape in parallel with each other. For this purpose, all (16) rollers R to be aligned in the alignment space 26 are inserted in the axial direction from the upper end opening of the chute 27 constituting the roller supply means 17 of the alignment device 14. When the roller R is inserted, the first (first) roller R inserted first is supplied from the chute portion 27 to the roller supply position S in the alignment space 26, and the remaining (2 to 16th) rollers R are supplied.
- the chute 27 is housed in the axially arranged state in series.
- the tip end (lower end) of the roller supply fluid supply means 28 is inserted into the chute portion 27, and the air supplied to the alignment space 26 side inside the chute portion 27 by the roller supply fluid supply means 28.
- the air is continuously ejected from the horizontal direction, which is a direction orthogonal to the supply direction (vertical direction) of the rollers R, by the alignment fluid supply means 18 through the air ejection nozzle 30.
- the top roller R has a downward pressing force in which the air pressure by the roller supply fluid supply means 28 is added to the weight of the remaining roller R placed above, and the horizontal air pressure.
- the vertical air pressure by the roller supply fluid supply means 28 and the horizontal air pressure by the alignment fluid supply means 18 are such that the roller R is moved in the horizontal direction while the downward pressing force is acting on the roller R. Although it cannot be moved, when the supply of air by the roller supply fluid supply means 28 is stopped and the downward pressing force is reduced, the reduced downward pressing force is overcome and the roller R Each is set so that can be moved in the horizontal direction.
- the air pressure of the roller supply fluid supply means 28 or the air pressure of the alignment fluid supply means 18 can be changed according to the number of rollers R remaining in the chute portion 27. In addition, it is preferable to obtain
- the leading roller R is moved from the roller supply position S to the length direction of the alignment space 26 by the horizontal air pressure ( 1, FIG. 4 and FIG. 5 (forward in the direction of the arrow X), and it is discharged from the roller supply position S in an instant, or the movement is periodically repeated little by little, and finally from the roller supply position S. Discharge.
- the downward pressing force does not act, so the leading roller R is caused by the air ejected from the air ejection nozzle 30.
- the alignment space 26 can be relatively easily moved in the length direction so as to be blown off in the circumferential direction until it comes into contact with the front end surface of the stopper member 33.
- the leading roller R When the leading roller R is removed from the roller supply position S, it is removed from the chute portion 27 by the downward pressing force in which the weight of the roller R and the air pressure of the air supplied by the roller supply fluid supply means 28 are added together.
- the second roller R is supplied immediately.
- the roller supply fluid supply means 28 applies the downward air pressure, so that the roller supply speed can be increased and the roller supply position S can be set regardless of the air pressure acting in the horizontal direction. It is possible to effectively prevent the posture of the roller R supplied from being greatly inclined.
- the second roller R also has a length of the alignment space 26 from the roller supply position S by the air ejected from the air ejection nozzle 30 when the roller supply fluid supply means 28 is stopped.
- the lid body and the roller supply means 17 are removed from the upper surface of the thick portion 22 constituting the guide tube 19, and the alignment device 14 is inserted and fixed. Move the tool 15 downward. Specifically, as shown in FIG. 8A, the through hole 24 provided in the guide cylinder 19 of the alignment device 14 and the guide hole 39 provided in the guide member 35 of the insertion jig 15 are concentric. Then, the aligning device 14 is moved below the insertion jig 15. Then, from this state, the pushing jig 21 of the aligning device 14 is relatively displaced upward.
- the roller group G aligned in an annular shape in the alignment space 26 is pushed upward from the alignment space 26 and taken out in the axial direction. Then, the roller group G is inserted into the guide hole 39 while the pushing cylinder 38 of the insertion jig 15 is pushed upward by the upper end surface of the roller group G. As a result, the holding member 36 is inserted into the roller group G in an elastically contracted state while the diameter of the roller group G is prevented from expanding by the inner peripheral surface of the guide hole 39. Note that the upward movement of the holding member 36 is blocked by the guide rod 37.
- FIG. 8 (B) when the movement of the roller group G from the through hole 24 to the guide hole 39 is completely completed, as shown in FIG.
- the outer ring W which is a track member, is arranged instead of the alignment device 14 by being moved from below the insertion jig 15. Thereafter, the pushing cylinder 38 is relatively displaced downward with respect to the guide member 35 and the guide rod 37 so that the roller group G and the holding member 36 inserted inside the roller group G are simultaneously lowered downward from the guide hole 39. Extrude and incorporate inside the outer ring W.
- the roller group G taken out from the through-hole 24 is not inserted into the outer ring W as it is, but is once moved into the guide hole 39 of the insertion jig 15 and held therein.
- the roller group G and the holding member 36 can be simultaneously incorporated inside the outer ring W.
- the holding member 36 can press and hold the rollers R constituting the roller group G toward the outer ring raceway formed on the inner peripheral surface of the outer ring W in a state of being incorporated inside the outer ring W. It is possible to effectively prevent the roller R from inclining or falling off from the state immediately after the roller R is incorporated inside the outer ring W.
- the rollers R when aligning the plurality of rollers R in an annular shape, the rollers R are not aligned by being rotated by a rotating shaft (guide bar) but are aligned with the rollers R by the alignment fluid supply means 18.
- the rollers R are aligned by utilizing a flow of air (air pressure) ejected toward the air. For this reason, it is possible to align the rollers R in the alignment space 26 while effectively preventing damage to the rolling surfaces of the rollers R. Further, the alignment time can be shortened easily by increasing the speed of the air ejected by the alignment fluid supply means 18 or increasing the ejection amount.
- the roller R stored in the chute portion 27 is pressed toward the alignment space 26 using the roller supply fluid supply means 28. For this reason, it is possible to increase the supply speed of the roller R to the roller supply position S as compared with the case where the roller supply fluid supply means 28 is not provided, which is advantageous in shortening the alignment time. . Further, the posture of the roller R supplied to the roller supply position S can be prevented from being inclined regardless of the air pressure acting in the horizontal direction with respect to the roller R. Further, since the supply and non-supply of air into the chute portion 27 are controlled to be repeated alternately, the leading roller R can be adjusted without excessively increasing the air pressure by the alignment fluid supply means 18.
- the roller R can be moved from the roller supply position S regardless of the weight of the remaining roller R, regardless of the force pressed against the upper surface of the pushing jig 21 by the air pressure by the supply fluid supply means 28. This leads to miniaturization of these fluid supply means, which is advantageous in reducing the size and weight of the alignment device 14.
- the air supplied by the roller supply fluid supply means 28 and the alignment fluid supply means 18 is supplied from the inner peripheral surface of the guide tube 19 (through hole 24), the outer peripheral surface of the extrusion jig 21, and Further, it can be discharged to the outside through an annular minute gap formed between the outer peripheral surface of the guide shaft 20 and the inner peripheral surface of the pushing jig 21.
- the cross-sectional shape of the insertion hole 32 for inserting the air ejection nozzle 30 is an oblong shape in order to adjust the ejection direction of the air ejection nozzle 30, it is between the air ejection nozzle 30 and the insertion hole 32. It can also be discharged from the gap.
- a dedicated discharge hole for discharging the supplied air to the outside can be formed in a part of the guide tube 19.
- the shape of the holding member 36 is not limited to the illustrated structure. That is, as long as the roller R constituting the roller group G can be pressed toward the raceway surface of the outer ring (track member) while being inserted inside the annularly arranged roller group G, the roller group G can be held. It is sufficient, and any structure of a hollow shape and a solid shape can be adopted, and various shapes such as a circular shape and a star shape can be adopted as the radial cross-sectional shape.
- the roller supply fluid supply means 28 intermittently supplies air.
- the present invention is not limited to the control method in which the alignment fluid supply means 18 continuously supplies air.
- the roller supply fluid supply means 28 can be set to supply air continuously, or the alignment fluid supply means 18 can be set to supply air intermittently.
- the air supply can be switched intermittently. If controlled in this way, an air flow toward the alignment space 26 is always generated for the roller R inserted into the upper end opening of the chute 27 and falling, so that the supply speed of the roller R is increased. This is advantageous in reducing the alignment time.
- the fluid supplied by the alignment fluid supply means 18 and the roller supply fluid supply means 28 is not limited to air, and various fluids such as water and oil can also be used.
- the aligning device 14a is used when a plurality of rollers R are linearly aligned in parallel with each other and the rollers R are supplied to another device.
- the alignment device 14a includes a jig body 16a, roller supply means 17a, and alignment fluid supply means 18a.
- the jig main body 16a is composed of a roller supply case 44 alone, and a linear alignment space 26a is formed inside the roller supply case 44.
- the left-right direction in FIG. 9 and the front-back direction in FIG. 10 correspond to the width direction, and the up-down direction in FIG.
- a through hole 46 through which the roller R can be inserted is formed at one end portion in the length direction of the one side wall 45a (upper end portion in FIG. 9). Is formed.
- the roller supply case 44 is connected to another device (not shown) at the lower portion thereof, and the lower end portion of the alignment space 26a is opened to supply the roller R to the other device.
- the roller supply means 17a includes a chute portion 27a and a roller supply fluid supply means (not shown), and a direction that coincides with the width direction of the alignment space 26a (the left-right direction in FIG. 9 and the front-back direction in FIG. 10). ), A plurality of rollers R are held in a state of being arranged in series in the axial direction, and the rollers R are sequentially supplied to the alignment space 26a. For this reason, the chute
- the roller supply fluid supply means of the roller supply means 17a is configured in the same manner as in the first example of the embodiment, and the air flow toward the alignment space 26a is provided inside the chute portion 27a.
- the roller R accommodated in the chute portion 27a is pressed toward the alignment space 26a.
- the alignment fluid supply means 18a includes an air ejection nozzle 30a and an actuator.
- the roller R supplied to the alignment space 26a by the roller supply means 17a has a supply direction of the roller R (the width of the alignment space 26a).
- the air is ejected from a direction orthogonal to the direction (from the upper side to the lower side in FIGS. 9 and 10). For this reason, an insertion hole 32 a penetrating in the vertical direction is formed in the top plate 47 of the roller supply case 44.
- the tip part of the air ejection nozzle 30a inserted in the insertion hole 32a is the position where the roller R is supplied from the chute part 27a in the alignment space 26a, the roller supply position S (the upper end of the alignment space 26a) ).
- the roller R is inserted in the axial direction from one end opening of the chute portion 27a of the roller supply means 17a.
- the roller supply fluid supply means constantly generates an air flow toward the alignment space 26a inside the chute portion 27a, and the first roller R inserted first from the chute portion 27a to the alignment space 26a.
- the roller R is supplied to the roller supply position S and the air pressure in the horizontal direction is applied to the roller R, and the roller R is stopped at the roller supply position S.
- the alignment fluid supply means 18a ejects air from above, which is a direction orthogonal to the supply direction of the rollers R, through the air ejection nozzle 30a (continues ejection).
- the air pressure in the horizontal direction by the roller supply fluid supply means and the air pressure directed downward are applied to the leading roller R.
- the downward air pressure overcomes the horizontal air pressure acting on the roller R and moves the roller R from the roller supply position S.
- the pressing force directed in the horizontal direction does not act, so the leading roller R is ejected from the air ejection nozzle 30a. It is blown off by the action of air and gravity and is relatively easily moved in the length direction of the alignment space 26a.
- the second roller R When the top roller R is out of the roller supply position S, the second roller R is immediately supplied from the chute portion 27a. Particularly in the case of this example, since the air pressure directed in the horizontal direction is always applied by the roller supply fluid supply means, the roller R supplied to the roller supply position S irrespective of the action of the air pressure directed downward and the gravity. It is possible to effectively prevent the posture of the camera from being greatly inclined.
- the second roller R is also moved in the length direction of the alignment space 26a from the roller supply position S by the air ejected from the air ejection nozzle 30a. In this example, the roller supply to the roller supply position S and the movement of the roller R from the roller supply position S are sequentially repeated in this way. Accordingly, the rollers R can be sequentially supplied from the lower end opening of the alignment space 26a to another device while aligning the plurality of rollers R in the linear alignment space 26a in parallel with each other.
- the control method by the controller of the actuator of the roller supply fluid supply means and the actuator 30a of the alignment fluid supply means 18a is the same as that of the roller supply fluid supply means and
- the arrangement fluid supply means 18a is not limited to a configuration in which air is continuously supplied. That is, air can be supplied intermittently or continuously by the actuator constituting the roller supply fluid supply means and the actuator 30a constituting the alignment fluid supply means 18a.
- air can be supplied intermittently or continuously by the actuator constituting the roller supply fluid supply means and the actuator 30a constituting the alignment fluid supply means 18a.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automatic Assembly (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
図1~図8は、本発明の実施の形態の第1例を示している。組立装置13は、整列装置14と、挿入治具15とから構成され、総ころ型のラジアルころ軸受を構成する外輪Wの内側に、複数のころRを組み込むために使用される。
図9~図10は、本発明の実施の形態の第2例を示している。本例の場合、整列装置14aは、複数のころRを直線状に互いに並列に整列させて、別の装置にころRを供給する際に使用される。整列装置14aは、治具本体16aと、ころ供給手段17aと、整列用流体供給手段18aとを備える。
2 整列ガイド部材
3 ガイドバー
4 押し込み筒
5 ころ供給手段
6 シャッタ部材
7a、7b チャック部材
8 貫通孔
9 電動モータ
10 出力軸
11 溝
12 整列空間
13 組立装置
14、14a 整列装置
15 挿入治具
16、16a 治具本体
17、17a ころ供給手段
18、18a 整列用流体供給手段
19 ガイド筒
20 ガイド軸
21 押し出し治具
22 厚肉部
23 薄肉部
24 貫通孔
25 外向鍔部
26、26a 整列空間
27、27a シュート部
28 ころ供給用流体供給手段
29 エア噴出ノズル
30、30a エア噴出ノズル
31 アクチュエータ
32、32a 挿通孔
33 ストッパ部材
34 挿通孔
35 ガイド部材
36 保持部材
37 ガイドロッド
38 押し出し筒
39 ガイド孔
40 円筒部
41 底部
42 外向鍔部
43 切り欠き
44 ころ供給用ケース
45 側壁部
46 通孔
47 天板
G ころ群
R ころ
S ころ供給位置
W ワーク
Claims (10)
- 所定の空間形状を有し、長さ方向に複数のころを互いに並列に整列させることが可能で、その幅方向が前記ころを整列させた状態での当該ころの軸方向と一致する、整列空間を備える治具本体と、
前記整列空間の幅方向に一致する方向に、前記ころを軸方向に直列に配置した状態で保持し、当該ころを当該整列空間のころ供給位置に順次供給するころ供給手段と、
前記ころ供給手段により前記ころ供給位置に順次供給される前記ころのそれぞれに対して、前記整列空間の幅方向と直交する方向から、当該ころが前記整列空間の長さ方向に移動するように、流体を噴出させる整列用流体供給手段とを備える、
整列装置。 - 前記治具本体は、当該治具本体を構成する他の部材に対して前記整列空間の幅方向に相対変位可能に設けられ、その端面が、前記整列空間の幅方向片端面を構成する、押し出し治具を備える、請求項1に記載のころ整列装置。
- 前記ころ供給手段は、その内部に前記ころを収納可能なシュート部と、当該シュート部の内部に前記整列空間側に向かう流体の流れを生じさせる、ころ供給用流体供給手段とを備える、請求項1に記載のころ整列装置。
- 前記整列空間が円環状である、請求項1に記載のころ整列装置。
- 前記ころのうち、前記整列空間内に最初に供給され、当該整列空間の長さ方向に移動するころを、前記ころ供給位置の手前側で停止させるためのストッパを備える、請求項4に記載したころ整列装置。
- 前記整列空間が直線状である、請求項1に記載のころ整列装置。
- 所定の空間形状を有する整列空間の長さ方向に複数のころを互いに並列に整列させる方法であって、前記整列空間の幅方向と一致する方向に、前記ころを軸方向に直列に配置して、当該ころの軸方向と前記整列空間の幅方向が一致する状態で、当該ころを前記整列空間のころ供給位置に順次供給し、当該ころ供給位置に供給された前記ころのそれぞれに対して、前記整列空間の幅方向と直交する方向から流体を噴出することにより、当該ころを当該整列空間の長さ方向に移動させる、ころ整列方法。
- 前記ころのうち、前記ころ供給位置に供給されたころを、前記整列空間の長さ方向に移動させて、当該ころ供給位置から離間させることにより、前記ころのうち、次のころが、当該ころ供給位置に供給される、請求項7に記載のころ整列方法。
- 前記ころを前記整列空間の前記ころ供給位置に供給するに際して、前記軸方向に直列に配置されたころに、当該ころの軸方向に作用する力を付与する、請求項7に記載のころ整列方法。
- 前記ころの軸方向の作用する力の少なくとも一部を、前記整列空間側に向かう流体の流れにより構成し、前記ころを前記ころ供給位置に供給する際に、当該流体の流れを前記ころに作用させ、前記ころ供給位置に供給されたころを前記整列空間の長さ方向に移動させる際に、当該流体の流れを一時的に停止させる、請求項9に記載のころ整列方法。
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US14/379,779 US9611895B2 (en) | 2012-02-23 | 2013-02-12 | Roller alignment device and roller alignment method |
JP2014500659A JP5725254B2 (ja) | 2012-02-23 | 2013-02-12 | ころ整列装置およびころ整列方法 |
EP13751336.2A EP2818276B1 (en) | 2012-02-23 | 2013-02-12 | Roller alignment device and roller alignment method |
CN201380002215.0A CN103717348B (zh) | 2012-02-23 | 2013-02-12 | 滚子码放装置以及滚子码放方法 |
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- 2013-02-12 JP JP2014500660A patent/JP5737472B2/ja not_active Expired - Fee Related
- 2013-02-12 EP EP13751199.4A patent/EP2818275B1/en not_active Not-in-force
- 2013-02-12 JP JP2014500659A patent/JP5725254B2/ja active Active
- 2013-02-12 EP EP13751336.2A patent/EP2818276B1/en not_active Not-in-force
- 2013-02-12 US US14/379,779 patent/US9611895B2/en not_active Expired - Fee Related
- 2013-02-12 WO PCT/JP2013/053262 patent/WO2013125392A1/ja active Application Filing
- 2013-02-12 WO PCT/JP2013/053263 patent/WO2013125393A1/ja active Application Filing
- 2013-02-12 US US14/379,769 patent/US9797455B2/en not_active Expired - Fee Related
- 2013-02-12 KR KR1020147023342A patent/KR101622500B1/ko active IP Right Grant
- 2013-02-12 CN CN201380002215.0A patent/CN103717348B/zh not_active Expired - Fee Related
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JP2017183674A (ja) * | 2016-03-31 | 2017-10-05 | 富士機械製造株式会社 | 部品供給装置 |
CN109352554A (zh) * | 2018-11-23 | 2019-02-19 | 黄义 | 一种轴承外圈加工用定位调节模具 |
CN116906457A (zh) * | 2023-09-11 | 2023-10-20 | 常州市武滚轴承有限公司 | 一种圆柱滚子轴承组合装配工装 |
CN116906457B (zh) * | 2023-09-11 | 2023-11-14 | 常州市武滚轴承有限公司 | 一种圆柱滚子轴承组合装配工装 |
Also Published As
Publication number | Publication date |
---|---|
EP2818276A1 (en) | 2014-12-31 |
US9797455B2 (en) | 2017-10-24 |
US9611895B2 (en) | 2017-04-04 |
EP2818275A4 (en) | 2015-12-02 |
CN103619532A (zh) | 2014-03-05 |
KR20140119138A (ko) | 2014-10-08 |
US20150013164A1 (en) | 2015-01-15 |
CN103717348B (zh) | 2017-03-29 |
WO2013125393A1 (ja) | 2013-08-29 |
JP5737472B2 (ja) | 2015-06-17 |
EP2818276B1 (en) | 2017-09-27 |
KR101568954B1 (ko) | 2015-11-12 |
JP5725254B2 (ja) | 2015-05-27 |
EP2818275A1 (en) | 2014-12-31 |
EP2818276A4 (en) | 2015-12-09 |
CN103717348A (zh) | 2014-04-09 |
US20150075004A1 (en) | 2015-03-19 |
JPWO2013125393A1 (ja) | 2015-07-30 |
KR20140119137A (ko) | 2014-10-08 |
CN103619532B (zh) | 2016-04-20 |
KR101622500B1 (ko) | 2016-05-18 |
EP2818275B1 (en) | 2018-04-04 |
JPWO2013125392A1 (ja) | 2015-07-30 |
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