WO2023199700A1 - Motion guide device - Google Patents

Motion guide device Download PDF

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Publication number
WO2023199700A1
WO2023199700A1 PCT/JP2023/010802 JP2023010802W WO2023199700A1 WO 2023199700 A1 WO2023199700 A1 WO 2023199700A1 JP 2023010802 W JP2023010802 W JP 2023010802W WO 2023199700 A1 WO2023199700 A1 WO 2023199700A1
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WO
WIPO (PCT)
Prior art keywords
hole
guide device
motion guide
rolling element
rolling
Prior art date
Application number
PCT/JP2023/010802
Other languages
French (fr)
Japanese (ja)
Inventor
徹 高橋
純三 新部
秀忠 鈴木
Original Assignee
Thk株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thk株式会社 filed Critical Thk株式会社
Publication of WO2023199700A1 publication Critical patent/WO2023199700A1/en

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Classifications

    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings

Definitions

  • the present invention relates to a motion guide device.
  • Motion guide devices which have rolling elements such as balls and rollers interposed in the guide part, are used as mechanical elements to guide the linear or curved motion of moving objects such as tables, and can provide nimble movements, making them ideal for robots, craftsmen, etc. It is used in a variety of fields, including machinery, semiconductor/LCD manufacturing equipment, and medical equipment.
  • a linear guide which is a type of motion guide device, includes a track rail as a track member in which a rolling element rolling surface is formed in the longitudinal direction, and a moving block as a moving member.
  • the moving block is assembled to the track rail so that it can move linearly.
  • a plurality of rolling elements are interposed between the track rail and the moving block so as to be capable of rolling motion in order to reduce frictional resistance.
  • the circuit-like endless circulation path of the motion guide device extends parallel to the loaded rolling element rolling path between the rolling element rolling surface of the track rail and the loaded rolling element rolling surface of the moving block, and the loaded rolling element rolling path. It is constituted by a rolling element return path and a pair of U-shaped direction change paths that connect the loaded rolling element rolling path and the rolling element return path (for example, see Patent Document 1 below).
  • Mineral casting is a composite material made by using ore with a size of about 0.1 mm to 16 mm as aggregate and bonding it with epoxy resin or the like.
  • the aggregate ore does not only have a large diameter, but by adding particulate ore, the packing density can be increased, so when an external force is applied to the composite material made by mineral casting, a structure that disperses the force is created. It has the following.
  • the composite material obtained by mineral casting is a mechanical material that is lightweight while having high rigidity.
  • the present invention has been made in view of the problems existing in the prior art described above, and its purpose is to make a composite material obtained by mineral casting applicable to motion guide devices such as linear guides.
  • the object of the present invention is to provide a motion guide device that is lightweight while maintaining mechanical strength and rigidity.
  • the motion guide device includes: a raceway member having a rolling element rolling surface formed in the longitudinal direction; a moving member having a loaded rolling element rolling surface opposite to the rolling element rolling surface of the raceway member; By including a plurality of rolling elements rolling on a loaded rolling element rolling path consisting of the rolling element rolling surface and the loaded rolling element rolling surface, the moving member can move relative to each other along the longitudinal direction of the track member.
  • a motion guide device that is assembled to the track member via the plurality of rolling elements so as to be able to freely reciprocate, the track member or the movable member moving in the longitudinal direction of the track member or in the reciprocating direction of the movable member.
  • It is formed to have at least an outer peripheral part made of a tubular metal material having a through hole penetrating in the direction of movement, and a filling part filled with mineral casting so as to fill the through hole of the outer peripheral part. It is characterized by this.
  • a motion guide device such as a linear guide
  • a motion guide device that is lightweight while maintaining mechanical strength and rigidity can be created.
  • FIG. 1 is an external perspective view illustrating one form of a linear guide that is a motion guide device to which the present invention can be applied.
  • FIG. 2 is a cross-sectional view for explaining the endless circulation path included in the linear guide shown in FIG.
  • FIG. 3 is an external perspective view showing the moving block main body according to the present embodiment.
  • FIG. 4 is a diagram illustrating the outer circumferential portion constituting the main body of the movable block of this embodiment, in which the partial view (a) shows a front view, the partial view (b) shows a right side view, and Figure (c) shows a cross section taken along line AA in figure (b).
  • FIG. 1 is an external perspective view illustrating one form of a linear guide that is a motion guide device to which the present invention can be applied.
  • FIG. 2 is a cross-sectional view for explaining the endless circulation path included in the linear guide shown in FIG.
  • FIG. 3 is an external perspective view showing the moving block main body according to the present embodiment.
  • FIG. 4 is
  • FIG. 5 is a partial sectional view for explaining the manufacturing method of the moving block main body according to the present embodiment, in which the partial view (a) shows a front view, and the partial view (b) shows a right side view.
  • Figure (c) shows a plan view.
  • FIG. 6 is a diagram showing a filler member for forming a bolt hole 14b as a fixing hole of the movable block main body according to the present embodiment, and a partial view (a) in the diagram shows a plan view, Part (b) shows a cross section taken along line BB in part (a).
  • FIG. 7 is a diagram illustrating an insert connecting part that connects to the insert member shown in FIG. 6 and connects a plurality of insert members.
  • FIG. 8 is a diagram showing a filler member for forming screw holes for attaching a pair of lid members 17, 17 to the moving block main body of the present embodiment, and part (a) in the figure is a front view.
  • Figure (b) shows a cross section taken along line DD in figure (a).
  • FIG. 9 is a diagram illustrating an embedder connecting part that connects to the embedder member shown in FIG. 8 and connects a plurality of embedder members.
  • (b) shows a cross section taken along the line E--E in part (a).
  • FIG. 10 is a diagram showing a fixing jig (installed on the front side of the outer peripheral part) used for manufacturing the moving block main body according to the present embodiment, and the partial view (a) in the diagram is on the left side. A plan view is shown, and the partial view (b) is a front view.
  • FIG. 11 is a diagram showing a fixing jig (installed on the back side of the outer peripheral part) used for manufacturing the moving block main body according to the present embodiment, and the partial view (a) in the figure is the Part (b) shows a left side view.
  • FIG. 12 is an external perspective view showing the track rail according to this embodiment.
  • FIG. 13 is a diagram for explaining the method of manufacturing a track rail according to this embodiment.
  • FIG. 14 is a longitudinal cross-sectional view for explaining the main part configuration of the track rail according to this embodiment.
  • FIG. 15 is a diagram showing an FEM (Finite Element Method) analysis model of a linear guide that employs the track rail according to the present embodiment.
  • FIG. 16 is a graph diagram showing the results of theoretical stiffness obtained by simulation based on the FEM analysis model shown in FIG. 15, and particularly shows the calculation results of vertical stiffness.
  • FIG. 17 is a graph diagram showing the results of theoretical stiffness obtained by simulation based on the FEM analysis model shown in FIG. 15, and particularly shows the calculation results of horizontal stiffness.
  • FIG. 18 is a graph diagram showing the results of theoretical stiffness obtained by a simulation performed based on the FEM analysis model shown in FIG. 15, and particularly shows the calculation results of rolling stiffness.
  • FIG. 19 is a graph diagram showing the results of theoretical stiffness obtained by a simulation performed based on the FEM analysis model shown in FIG. 15, and particularly shows the calculation results of pitching stiffness.
  • FIG. 20 is a graph diagram showing the results of theoretical stiffness obtained by a simulation performed based on the FEM analysis model shown in FIG. 15, and particularly shows the calculation results of yawing stiffness.
  • FIG. 1 is an external perspective view illustrating one form of a linear guide that is a motion guide device to which the present invention is applicable.
  • FIG. 2 is a sectional view for explaining the endless circulation path provided in the linear guide shown in FIG.
  • the linear guide 10 as a motion guide device to which the present invention is applicable includes a track rail 11 as a track member, and a moving member slidably assembled via balls 12 installed on the track rail 11 as a plurality of rolling elements.
  • a moving block 13 is provided.
  • the track rail 11 has bolt holes 11b formed at equal intervals for attaching the track rail 11 to the base by passing bolts as attachment means from the top surface to the bottom surface of the track rail 11. By using this, the track rail 11 can be fixedly installed on the base surface.
  • the track rail 11 is an elongated member whose cross section perpendicular to its longitudinal direction is formed into a generally rectangular shape. A running surface 11a is formed over the entire length of the track rail 11.
  • the track rail 11 may be formed to extend linearly, or may be formed to extend curvedly.
  • the number of rolling element rolling surfaces 11a illustrated in FIGS. 1 and 2 is 4 in total, 2 on the left and 2 on the left, the number may be changed arbitrarily depending on the purpose of the linear guide 10, etc. be able to.
  • the moving block 13 is composed of a moving block main body 14, a pair of lid members 17, 17, a pair of end seals 15, 15, etc.
  • the moving block body 14 constituting the moving block 13 is provided with loaded rolling element rolling surfaces 14a as raceway surfaces at positions corresponding to the rolling element rolling surfaces 11a.
  • a loaded rolling element rolling path 22 is formed by the rolling element rolling surface 11a of the track rail 11 and the loaded rolling element rolling surface 14a of the moving block main body 14, and a plurality of balls 12 are loaded on this loaded rolling element rolling path 22. It is sandwiched in a state where it can roll freely.
  • four rolling element return passages 23 extending parallel to each rolling element rolling surface 11a are formed inside the moving block main body part 14.
  • a pair of lid members 17, 17 are installed at both ends of the moving block main body 14 in the moving direction.
  • a direction change path 25 is provided in each of the pair of lid members 17, 17. This direction change path 25 is configured to connect the end of the rolling element return path 23 and the end of the loaded rolling element rolling path 22. Therefore, one infinite circulation path is constituted by a combination of one loaded rolling element rolling path 22, one rolling element return path 23, and a pair of direction changing paths 25, 25 that connect them (see FIG. 2).
  • the plurality of balls 12 are installed in an endless circulation path composed of a loaded rolling element rolling path 22, a rolling element return path 23, and a pair of direction change paths 25, 25, so that the balls 12 can be endlessly circulated. 13 is capable of reciprocating relative to the longitudinal direction of the track rail 11.
  • external members can be attached to the moving block 13 by screwing bolts as attachment means from the upper surface of the moving block main body 14 toward the lower surface at the four corners of the upper surface of the moving block main body 14.
  • a bolt hole 14b is formed (see FIG. 1). By using this bolt hole 14b, the external member can be fixed to the moving block 13 and can be reciprocated with respect to the base surface to which the track rail 11 is fixed.
  • each of the pair of lid members 17, 17 includes a pair of end seals 15 as seal members, so as to close the gap between the moving block 13 and the track rail 11 on the outside of the pair of direction change paths 25, 25. 15 have been installed.
  • This end seal 15 can be provided with a lip portion at the contact point with the track rail 11, and this lip portion or the end seal 15 itself slides against the track rail 11 without a gap, so that the linear guide 10 It is now possible to add a dustproof effect.
  • a return plate which is not shown in FIGS. 1 and 2, is sandwiched between the moving block main body 14 and the pair of lid members 17, 17.
  • the first function of this return plate is to close the installation surface of the cover member 17 in the moving block main body 14, and the gap between the moving block main body 14 and the cover member 17. By blocking the movable block main body 14 and the lid member 17, it serves to improve the sealing performance between the movable block main body 14 and the lid member 17.
  • the return plate (not shown) is formed with a road surface 25b on the inner circumference side of the direction change path 25, and cooperates with a road surface 25a on the outer circumference side formed on the lid member 17. , and is configured to form a direction change path 25.
  • FIG. 3 is an external perspective view showing the moving block main body according to the present embodiment.
  • FIG. 4 is a diagram illustrating the outer circumferential portion constituting the main body of the movable block of this embodiment, in which the partial view (a) shows a front view, the partial view (b) shows a right side view, and Figure (c) shows a cross section taken along line AA in figure (b).
  • FIG. 1 shows a front view
  • FIG. 4 shows a diagram illustrating the outer circumferential portion constituting the main body of the movable block of this embodiment, in which the partial view (a) shows a front view, the partial view (b) shows a right side view, and Figure (c) shows a cross section taken along line AA in figure (b).
  • FIG. 1 shows a front view
  • Figure (c) shows a cross section taken along line AA in figure (b).
  • FIG. 5 is a partial sectional view for explaining the manufacturing method of the moving block main body according to the present embodiment, in which the partial view (a) shows a front view, and the partial view (b) shows a right side view.
  • Figure (c) shows a plan view.
  • FIG. 6 is a diagram showing a filler member for forming a bolt hole 14b as a fixing hole of the movable block main body according to the present embodiment, and a partial view (a) in the diagram shows a plan view, Part (b) shows a cross section taken along line BB in part (a).
  • FIG. 7 is a diagram illustrating an insert connecting part that connects to the insert member shown in FIG. 6 and connects a plurality of insert members.
  • FIG. 8 is a diagram showing a filler member for forming screw holes for attaching a pair of lid members 17, 17 to the moving block main body of the present embodiment, and part (a) in the figure is a front view.
  • Figure (b) shows a cross section taken along line DD in figure (a).
  • FIG. 9 is a diagram illustrating an embedder connecting part that connects to the embedder member shown in FIG. 8 and connects a plurality of embedder members.
  • (b) shows a cross section taken along the line E--E in part (a).
  • 10 and 11 are diagrams showing a fixing jig used for manufacturing the moving block main body according to this embodiment.
  • the partial view (a) shows a left side view
  • the partial view (b) shows a front view.
  • FIG. 11 the partial view (a) shows a rear view
  • the partial view (b) shows a left side view.
  • the moving block main body 14 constituting the moving block 13, which is a moving member to which the present invention is applied, is made of a tubular metal having a through hole 32 penetrating in the direction of reciprocating motion. It is formed to have an outer peripheral part 31 made of a material, and a filling part 41 filled with mineral casting so as to fill the through hole 32 that the outer peripheral part 31 has.
  • four rolling element return passages 23 are formed inside the moving block main body 14. These four rolling element return passages 23 are formed by a metal pipe member 43 made of a tubular metal material that allows the plurality of balls 12 to circulate in an unloaded state. Note that the metal tube member 43 constitutes the tube member of the present invention.
  • the movable block main body 14 has a fixing hole for fixedly connecting an external member or component.
  • bolt holes 14b formed at the four corners of the upper surface of the section 14, and screw holes 14c for attaching a pair of cover members 17, 17 that are attached to the front and back surfaces of the moving block main body section 14, respectively.
  • the bolt hole 14b which is the fixing hole of the present invention, is formed by a filler member 44 made of a metal material and forming the periphery of the bolt hole 14b.
  • a specific shape of the filler member 44 forming the bolt hole 14b is shown in FIG.
  • the end of the filler member 44 on the side where the bolt hole 14b is not opened has a convex shape.
  • a portion 44a is formed, and this convex portion 44a is a location to which the insert connecting portion 54 shown in FIG. 7 is connected.
  • the insert connecting portion 54 is a long plate member having a plate shape, and has two connecting holes 54a at both ends into which the convex portion 44a of the insert member 44 can be fitted. Therefore, by using the two connecting holes 54a, the implant connecting part 54 of this embodiment can install and connect a total of two implant members 44, one at each end. ing.
  • the convex portion 44a of the insert member 44 and the connecting hole 54a of the insert connecting portion 54 are fitted into each other, such that they are firmly connected by press-fitting, for example.
  • four filler members 44 forming the bolt holes 14b are installed in the movable block main body 14, so two filler members 44 each are connected by two filler connecting portions 54. 44 are connected.
  • the implant connecting portion 54 is embedded inside the filling portion 41 in a state in which the two implant members 44 are firmly connected, it can exert an anchor effect to firmly fix the implant members 44.
  • the convex portion 44a formed in the insert member 44 and the connecting hole 54a formed in the insert connecting portion 54 have a cylindrical shape. Or it was circular in shape.
  • the scope of application of the present invention is not limited to cylindrical or circular shapes.
  • the convex portion and the connecting hole of the present invention have a polygonal fitting shape, the embedding member 44 can be shaped to be unable to rotate relative to the embedding connection portion 54. . By adopting such a shape, it is possible to realize a more firmly installed state of the insert member 44 and the insert connecting portion 54.
  • the screw hole 14c which is the fixing hole of the present invention, is formed by a filler member 45 made of a metal material and forming the periphery of the screw hole 14c.
  • a specific shape of the filler member 45 that forms the screw hole 14c is shown in FIG.
  • the end of the filler member 45 on the side where the screw hole 14c is not opened has a convex shape.
  • a portion 45a is formed, and this convex portion 45a is a location to which a recess connecting portion 55 shown in FIG. 9 is connected.
  • the insert connecting portion 55 is a long plate member having a plate shape, and has two connecting holes 55a at both ends into which the convex portions 45a of the insert member 45 can be fitted. Therefore, by using the two connecting holes 55a, the embedder connecting portion 55 of the present embodiment can connect two embedder members 45, one at each end, in total. ing.
  • the convex portion 45a of the insert member 45 and the connecting hole 55a of the insert connecting portion 55 are fitted into each other, such that they are firmly connected by press-fitting, for example.
  • a total of four filler members 45 forming the screw holes 14c are installed, two on each of the front side and the back side of the moving block main body 14, so that two Two insert members 45 are connected by the insert connecting portion 55 .
  • the implant connecting portion 55 is embedded inside the filling portion 41 in a state in which the two implant members 45 are firmly connected, it can exert an anchor effect to firmly fix the implant members 45.
  • the convex portion 45a formed in the insert member 45 and the connecting hole 55a formed in the insert connecting portion 55 have a cylindrical shape. Or it was circular in shape.
  • the scope of application of the present invention is not limited to cylindrical or circular shapes.
  • the insert member 45 can be shaped to be unable to rotate relative to the insert connecting portion 55. . By adopting such a shape, it is possible to realize a more firmly installed state of the insert member 45 and the insert connecting portion 55.
  • the insert member 44 is temporarily fixed to this opening hole 31a. That is, the filler member 44 that forms the bolt hole 14b is temporarily fixed in a state in which it is in contact with the outer peripheral portion 31.
  • This temporary fixing may be carried out using fastening means such as bolts, as shown in FIGS. 5(a) and 5(b).
  • fastening means such as bolts, as shown in FIGS. 5(a) and 5(b).
  • the metal pipe member 43 that constitutes the rolling element return passage 23 and the filler member 45 that constitutes the screw hole 14c are arranged inside the through hole 32 that penetrates in the direction of the reciprocating motion of the outer peripheral portion 31.
  • fixing jigs 61 and 62 shown in FIGS. 10 and 11 are used. To explain how to use the fixing jigs 61 and 62, first, the two insert members 45 are connected to each other by the insert connecting portion 55. Fix it with fastening means such as bolts.
  • the metal tube member 43 is inserted into the mounting rod 63 using the rolling element return passage 23 of the metal tube member 43, and the tubular shape forming the rolling element return passage 23 is inserted.
  • a metal pipe member 43 made of a metal material is fixed to a fixing jig 61.
  • the mounting rod 63 has thread grooves cut at both shaft ends, and can be fixed to the fixing jigs 61 and 62 by using the thread grooves.
  • the mounting rod 63 has an outer circumferential diameter dimension of the shaft other than the thread grooves formed at both shaft ends that is slightly smaller than an inner circumferential diameter dimension of the rolling element return passage 23 formed in the metal tube member 43. Therefore, the metal pipe member 43 can be easily inserted into the mounting rod 63 without any gaps. In this embodiment, since there are four metal tube members 43, the four metal tube members 43 are fixed to the fixing jig 61 using the four attachment rods 63 at this stage.
  • the fixing jig 61 is fitted to the front side of the outer circumferential part 31, and the fixing jig 62 is fitted to the back side of the outer circumferential part 31.
  • the fixing jigs 61 and 62 are fitted to the outer peripheral part 31, for example, in the front side fixing jig 61 shown in FIG.
  • the mounting rod 63 with the metal pipe member 43 inserted into the fixing jig 62 on the back side is attached using fastening means such as bolts. Fix it.
  • the metal tube member 43 constituting the rolling element return passage 23 is fixed to the fixing jig 62 on the back side.
  • the state at this stage is shown in FIG. 5, in which four metal pipe members 43 forming the rolling element return passage 23 are inserted into the through hole 32 penetrating in the direction of the reciprocating motion of the outer peripheral portion 31.
  • the positioning of the four filler members 44 forming the bolt holes 14b and the four filler members 45 forming the screw holes 14c is completed.
  • the filling portion 41 is filled with mineral casting using the filling hole 61c located slightly above the center of the fixing jig 61 placed on the front side.
  • the filling portion 41 is filled with mineral casting so as to fill the gap between the outer surface of the metal pipe member 43 that constitutes the rolling element return passage 23 and the inner surface of the through hole 32, and also forms the bolt hole 14b.
  • the gap between the outer surface of the filler member 45 that forms the screw hole 14c and the inner surface of the through hole 32 is filled. It will be implemented to fill in the gaps.
  • each of the insert connecting portions 54 and 55 exhibits an anchor effect, and the respective insert members 44 and 45 are firmly positioned and fixed.
  • the filling portion 41 is filled with mineral casting, so aggregates such as ore used in mineral casting are For example, it is preferable to use one having a size of 0.3 mm or less. In this way, by reducing the size of the aggregate used for mineral casting to 0.3 mm or less, it is possible to improve the fluidity of the material. It is also possible to fill the filling portion 41 by mineral casting.
  • metal parts are positioned and arranged in advance inside the through hole 32 of the outer peripheral portion 31. This eliminates the need for post-processing such as drilling screw holes for mounting after filling, which is advantageous in terms of manufacturing costs.
  • the through hole 32 of the outer peripheral portion 31 is filled with the filling portion 41 made of mineral casting, which prevents sound echoes and improves damping performance. is also possible.
  • FIG. 12 is an external perspective view showing the track rail according to this embodiment.
  • FIG. 13 is a diagram for explaining the method of manufacturing a track rail according to this embodiment.
  • FIG. 14 is a longitudinal cross-sectional view for explaining the main part configuration of the track rail according to this embodiment.
  • the track rail 11 which is a track member to which the present invention is applied, has an outer peripheral part 71 made of a tubular metal material having a through hole 72 penetrating in the longitudinal direction, and an outer peripheral part 71 made of a tubular metal material.
  • a filling portion 81 is filled with mineral casting so as to fill the through hole 72 of the hole 71 .
  • bolt holes 11b which are fixing holes for attaching the track rail 11 to the base, are formed at equal intervals.
  • the bolt hole 11b which is the fixing hole of the present invention, is formed by a filler member 73 made of a metal material and surrounding the bolt hole 11b.
  • the cross-sectional shape of the filler member 73 forming the bolt hole 11b is shown in FIGS. 13 and 14.
  • the outer peripheral portion 71 of the track rail 11 is formed with an upper opening 71a into which the insert member 73 is inserted. Further, an engagement recess 71b for positionally fixing the insert member 73 inserted from above is formed at a position directly below the upper opening 71a.
  • the upper opening 71a and the engagement recess 71b are formed as circular openings.
  • an engagement protrusion 73a that engages with the engagement recess 71b is formed on the lower side of the insert member 73.
  • the outer peripheral part 71 and the insert member 73 are temporarily fixed in contact with each other at both the upper and lower positions, and then mineral casting is performed to insert the insert into the through hole 72 that the outer peripheral part 71 has.
  • mineral casting is performed to insert the insert into the through hole 72 that the outer peripheral part 71 has.
  • the engagement recess 71b formed in the outer peripheral portion 71 and the engagement protrusion 73a formed in the padding member 73 have a circular shape.
  • the scope of application of the present invention is not limited to circular shapes.
  • the filler member 73 can be moved in the vertical direction perpendicular to the longitudinal direction of the track rail 11 with respect to the outer circumference 71.
  • the shape can be such that rotational movement around the rotation center is impossible. By adopting such a shape, the outer peripheral portion 71 and the insert member 73 can be more firmly installed.
  • an engagement recess 71b is formed on the bottom surface of the outer peripheral portion 71, and the engagement recess 71b is engaged with the lower side of the embedding member 73.
  • the configuration in which the engaging convex portion 73a is formed is adopted, the installation relationship of the engaging concave portion and the engaging convex portion of the present invention may be reversed, and the engaging convex portion is formed on the bottom surface of the outer peripheral portion 71 and An engagement recess may be formed on the lower side of the member 73.
  • FIGS. 12 to 14 a configuration is shown in which a plurality of insert members 73 are individually arranged inside the through holes 72 of the outer circumferential portion 71.
  • a configuration is shown in which a plurality of insert members 73 are individually arranged inside the through holes 72 of the outer circumferential portion 71.
  • an anchor effect for firmly fixing the implant member 73 can be exerted.
  • the metal parts are positioned and placed in advance inside the through holes 72 of the outer peripheral part 71 before filling the filling part 81 with mineral casting. After filling, there is no need for post-processing such as drilling screw holes for mounting, which is advantageous in terms of manufacturing costs.
  • the through holes 72 of the outer peripheral portion 71 are filled with the filling portion 81 made of mineral casting, so that it is possible to prevent sound echoes and improve damping performance. It is.
  • FIG. 15 is a diagram showing an FEM (Finite Element Method) analysis model of a linear guide that employs the track rail according to the present embodiment.
  • 16 to 20 are graphs showing the theoretical stiffness results obtained by simulations based on the FEM analysis model shown in FIG. 15.
  • FIG. 16 shows the calculated results of vertical stiffness
  • FIG. 17 shows the horizontal stiffness
  • 18 shows the calculation results of the rolling stiffness
  • FIG. 19 shows the calculation results of the pitching stiffness
  • FIG. 20 shows the calculation results of the yawing stiffness.
  • the moving blocks were all made of common steel, and four types of track rails were set.
  • the three models indicated by symbols (a) to (c) are for comparative examples; model (a) is made of steel and is solid; model (b) is solid.
  • the model (c) is a thick-walled hollow product, and the model (c) is a thin-walled hollow product.
  • the model indicated by the symbol (d) assumes the track rail 11 of this embodiment, and is a thin-walled hollow product subjected to mineral casting.
  • the portions where the balls 12 roll under load such as the loaded rolling element rolling surface 14a and the rolling element rolling surface 11a, have high hardness. It is possible to perform a quenching process to obtain .
  • the filling parts 41 and 81 are filled after the outer peripheral parts 31 and 71 are induction hardened in the same process as usual. do it.
  • Such a configuration is preferable in that it can prevent melting of the lightweight material and generation of gaps due to quenching, which have been problems in the past in lightweight composite materials.
  • a configuration was adopted in which one implant connecting part 54, 55 is embedded inside the filling part 41 in a state where two implant members 44, 45 are connected. is also applicable to the metal tube member 43 which is the tube member of the present invention.
  • a pipe connecting portion that can be connected to two pipe members is prepared, and these are connected and integrated.
  • the filling part 41 is filled with mineral casting so as to fill the gap between the outer surface of the plurality of pipe members and the pipe connecting part connected together and the inner surface of the through hole 32.
  • the tube member and the tube connection portion can be firmly positioned and fixed.
  • Pipe members of the present invention are configured as a metal pipe member 43, but the material of the pipe member of the present invention may be, for example, FRP (Fiber Reinforced Plastics).
  • Pipe members can be made of any material that can be mineral cast, such as fiber-reinforced plastic.
  • outer peripheral parts 31 and 71 of the above-described embodiment were assumed to be thin-walled hollow products as in the model shown in FIG.
  • a steel pipe with a thickness that allows for this it is possible to achieve the same dynamic load capacity as conventional standard products while also reducing weight.
  • the motion guide device to which the present invention is applicable is the linear guide 10
  • the scope of application of the present invention is not limited to the linear guide 10, but is also applicable to other motion guide devices such as spline devices and ball screw devices.
  • a spline shaft that constitutes a spline device it is possible to provide a motion guide device that is lighter in weight while maintaining mechanical strength and rigidity compared to conventional standard products. Become.
  • the present invention is not limited to a linear guide having an endless circulation path like the linear guide 10 of the above-described embodiment, but also includes a track member in which a rolling element rolling surface is formed in the longitudinal direction, and a track member in which a rolling element rolling surface is formed in the longitudinal direction.
  • the moving member includes a moving member having a loaded rolling element rolling surface opposite to the rolling element rolling surface, and a loaded rolling element rolling path consisting of the rolling element rolling surface and the loaded rolling element rolling surface.
  • a linear guide (motion guide) is assembled to the raceway member via the plurality of rolling elements so as to be able to freely reciprocate relatively along the longitudinal direction of the raceway member, and the plurality of rolling elements circulate finitely. It can also be applied to

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Abstract

A track member 11 or a movement member 13 of this motion guide device 10 is formed to have at least: outer peripheral sections 31, 71 composed of a tubular metal material having through-holes 32, 72 that pass through the track member 11 in the longitudinal direction thereof and the movement member 13 in the reciprocation direction thereof; and filled sections 41, 81 filled through mineral casting so as to fill the through-holes 32, 72 of the outer peripheral sections 31, 71. Due to said configuration, it is possible to provide a motion guide device which achieves weight reduction while maintaining mechanical strength and stiffness.

Description

運動案内装置exercise guide device
　本発明は、運動案内装置に関するものである。 The present invention relates to a motion guide device.
　テーブル等の移動体の直線運動や曲線運動を案内するための機械要素として、案内部分にボール、ローラ等の転動体を介在させた運動案内装置は、軽快な動きが得られるので、ロボット、工作機械、半導体・液晶製造装置、医療機器等、様々な分野で利用されている。 Motion guide devices, which have rolling elements such as balls and rollers interposed in the guide part, are used as mechanical elements to guide the linear or curved motion of moving objects such as tables, and can provide nimble movements, making them ideal for robots, craftsmen, etc. It is used in a variety of fields, including machinery, semiconductor/LCD manufacturing equipment, and medical equipment.
　運動案内装置の一種であるリニアガイドは、長手方向に転動体転走面が形成される軌道部材としての軌道レールと、移動部材としての移動ブロックとを備える。移動ブロックは、軌道レールに直線運動可能に組み付けられる。軌道レールと移動ブロックとの間には、摩擦抵抗を低減するために複数の転動体が転がり運動可能に介在される。運動案内装置のサーキット状の無限循環路は、軌道レールの転動体転走面と移動ブロックの負荷転動体転走面との間の負荷転動体転走路と、負荷転動体転走路と平行に延びる転動体戻り通路と、負荷転動体転走路と転動体戻り通路とを接続するＵ字形状をした一対の方向転換路によって構成される（例えば、下記特許文献１参照）。 A linear guide, which is a type of motion guide device, includes a track rail as a track member in which a rolling element rolling surface is formed in the longitudinal direction, and a moving block as a moving member. The moving block is assembled to the track rail so that it can move linearly. A plurality of rolling elements are interposed between the track rail and the moving block so as to be capable of rolling motion in order to reduce frictional resistance. The circuit-like endless circulation path of the motion guide device extends parallel to the loaded rolling element rolling path between the rolling element rolling surface of the track rail and the loaded rolling element rolling surface of the moving block, and the loaded rolling element rolling path. It is constituted by a rolling element return path and a pair of U-shaped direction change paths that connect the loaded rolling element rolling path and the rolling element return path (for example, see Patent Document 1 below).
特開２００５－２０１３３３号公報Japanese Patent Application Publication No. 2005-201333
　ところで、上述したリニアガイド等の運動案内装置については、機械的な強度や剛性を維持しながらも、軽量化したいとの要請が存在している。機械装置を軽量化する技術については、従来から種々存在しているが、そのなかにミネラルキャスティングという技術が存在する。ミネラルキャスティングとは、０．１ｍｍ～１６ｍｍ程度の大きさの鉱石を骨材とし、エポキシ樹脂等で結合させた複合材料のことである。骨材の鉱石は大きい径を持つものだけではなく、粒子状の鉱石を加えることで充填密度を高めることができるので、ミネラルキャスティングによる複合材料に対して外力が掛かった場合に力を分散させる構造を有するものである。つまり、ミネラルキャスティングによって得られる複合材料は、高い剛性等を有しながらも軽量であるといった特徴を備えた機械材料である。 By the way, there is a demand for reducing the weight of motion guide devices such as the above-mentioned linear guides while maintaining mechanical strength and rigidity. There have been various techniques for reducing the weight of mechanical devices, one of which is a technique called mineral casting. Mineral casting is a composite material made by using ore with a size of about 0.1 mm to 16 mm as aggregate and bonding it with epoxy resin or the like. The aggregate ore does not only have a large diameter, but by adding particulate ore, the packing density can be increased, so when an external force is applied to the composite material made by mineral casting, a structure that disperses the force is created. It has the following. In other words, the composite material obtained by mineral casting is a mechanical material that is lightweight while having high rigidity.
　しかしながら、リニアガイド等の運動案内装置に対してミネラルキャスティングを適用した技術は、従来存在していなかった。 However, no technology has hitherto existed that applies mineral casting to motion guide devices such as linear guides.
　本発明は、上述した従来技術に存在する課題に鑑みて成されたものであり、その目的は、ミネラルキャスティングによって得られる複合材料をリニアガイド等の運動案内装置に対して適用可能とすることにより、機械的な強度や剛性を維持しながらも、軽量化を実現した運動案内装置を提供することにある。 The present invention has been made in view of the problems existing in the prior art described above, and its purpose is to make a composite material obtained by mineral casting applicable to motion guide devices such as linear guides. The object of the present invention is to provide a motion guide device that is lightweight while maintaining mechanical strength and rigidity.
　本発明に係る運動案内装置は、長手方向に転動体転走面が形成される軌道部材と、前記軌道部材の前記転動体転走面に対向する負荷転動体転走面を有する移動部材と、前記転動体転走面と前記負荷転動体転走面からなる負荷転動体転走路を転走する複数の転動体と、を備えることで、前記移動部材が前記軌道部材の長手方向に沿って相対的に往復運動自在なように前記複数の転動体を介して前記軌道部材に組み付けられる運動案内装置であって、前記軌道部材又は前記移動部材は、前記軌道部材の長手方向又は前記移動部材の往復運動の方向に貫通する貫通孔を有する管状の金属材料からなる外周部と、前記外周部が有する前記貫通孔を埋めるようにミネラルキャスティングによって充填された充填部と、を少なくとも有して形成されることを特徴とするものである。 The motion guide device according to the present invention includes: a raceway member having a rolling element rolling surface formed in the longitudinal direction; a moving member having a loaded rolling element rolling surface opposite to the rolling element rolling surface of the raceway member; By including a plurality of rolling elements rolling on a loaded rolling element rolling path consisting of the rolling element rolling surface and the loaded rolling element rolling surface, the moving member can move relative to each other along the longitudinal direction of the track member. A motion guide device that is assembled to the track member via the plurality of rolling elements so as to be able to freely reciprocate, the track member or the movable member moving in the longitudinal direction of the track member or in the reciprocating direction of the movable member. It is formed to have at least an outer peripheral part made of a tubular metal material having a through hole penetrating in the direction of movement, and a filling part filled with mineral casting so as to fill the through hole of the outer peripheral part. It is characterized by this.
　本発明によれば、ミネラルキャスティングによって得られる複合材料をリニアガイド等の運動案内装置に対して適用することにより、機械的な強度や剛性を維持しながらも、軽量化を実現した運動案内装置を提供することができる。 According to the present invention, by applying a composite material obtained by mineral casting to a motion guide device such as a linear guide, a motion guide device that is lightweight while maintaining mechanical strength and rigidity can be created. can be provided.
図１は、本発明を適用可能な運動案内装置であるリニアガイドの一形態を例示する外観斜視図である。FIG. 1 is an external perspective view illustrating one form of a linear guide that is a motion guide device to which the present invention can be applied. 図２は、図１で示したリニアガイドが備える無限循環路を説明するための断面図である。FIG. 2 is a cross-sectional view for explaining the endless circulation path included in the linear guide shown in FIG. 図３は、本実施形態に係る移動ブロック本体部を示す外観斜視図である。FIG. 3 is an external perspective view showing the moving block main body according to the present embodiment. 図４は、本実施形態の移動ブロック本体部を構成する外周部を示す図であり、図中の分図（ａ）が正面視を示し、分図（ｂ）が右側面視を示し、分図（ｃ）が分図（ｂ）中のＡ－Ａ線断面を示している。FIG. 4 is a diagram illustrating the outer circumferential portion constituting the main body of the movable block of this embodiment, in which the partial view (a) shows a front view, the partial view (b) shows a right side view, and Figure (c) shows a cross section taken along line AA in figure (b). 図５は、本実施形態に係る移動ブロック本体部の製造方法を説明するための部分断面図であり、図中の分図（ａ）が正面視を示し、分図（ｂ）が右側面視を示し、分図（ｃ）が平面視を示している。FIG. 5 is a partial sectional view for explaining the manufacturing method of the moving block main body according to the present embodiment, in which the partial view (a) shows a front view, and the partial view (b) shows a right side view. Figure (c) shows a plan view. 図６は、本実施形態に係る移動ブロック本体部が有する固定穴としてのボルト穴１４ｂを形成するための埋め子部材を示す図であり、図中の分図（ａ）が平面視を示し、分図（ｂ）が分図（ａ）中のＢ－Ｂ線断面を示している。FIG. 6 is a diagram showing a filler member for forming a bolt hole 14b as a fixing hole of the movable block main body according to the present embodiment, and a partial view (a) in the diagram shows a plan view, Part (b) shows a cross section taken along line BB in part (a). 図７は、図６で示した埋め子部材に接続して複数の埋め子部材を連結する埋め子連結部を示す図であり、図中の分図（ａ）が平面視を示し、分図（ｂ）が分図（ａ）中のＣ－Ｃ線断面を示している。FIG. 7 is a diagram illustrating an insert connecting part that connects to the insert member shown in FIG. 6 and connects a plurality of insert members. (b) shows a cross section taken along the line CC in part (a). 図８は、本実施形態の移動ブロック本体部に一対の蓋部材１７，１７を取り付けるためのネジ穴を形成するための埋め子部材を示す図であり、図中の分図（ａ）が正面視を示し、分図（ｂ）が分図（ａ）中のＤ－Ｄ線断面を示している。FIG. 8 is a diagram showing a filler member for forming screw holes for attaching a pair of lid members 17, 17 to the moving block main body of the present embodiment, and part (a) in the figure is a front view. Figure (b) shows a cross section taken along line DD in figure (a). 図９は、図８で示した埋め子部材に接続して複数の埋め子部材を連結する埋め子連結部を示す図であり、図中の分図（ａ）が正面視を示し、分図（ｂ）が分図（ａ）中のＥ－Ｅ線断面を示している。FIG. 9 is a diagram illustrating an embedder connecting part that connects to the embedder member shown in FIG. 8 and connects a plurality of embedder members. (b) shows a cross section taken along the line E--E in part (a). 図１０は、本実施形態に係る移動ブロック本体部の製造に使用される固定治具（外周部の正面側に設置されるもの）を示す図であり、図中の分図（ａ）は左側面視を示し、分図（ｂ）は正面視を示している。FIG. 10 is a diagram showing a fixing jig (installed on the front side of the outer peripheral part) used for manufacturing the moving block main body according to the present embodiment, and the partial view (a) in the diagram is on the left side. A plan view is shown, and the partial view (b) is a front view. 図１１は、本実施形態に係る移動ブロック本体部の製造に使用される固定治具（外周部の背面側に設置されるもの）を示す図であり、図中の分図（ａ）は背面視を示し、分図（ｂ）は左側面視を示している。FIG. 11 is a diagram showing a fixing jig (installed on the back side of the outer peripheral part) used for manufacturing the moving block main body according to the present embodiment, and the partial view (a) in the figure is the Part (b) shows a left side view. 図１２は、本実施形態に係る軌道レールを示す外観斜視図である。FIG. 12 is an external perspective view showing the track rail according to this embodiment. 図１３は、本実施形態に係る軌道レールの製造方法を説明するための図である。FIG. 13 is a diagram for explaining the method of manufacturing a track rail according to this embodiment. 図１４は、本実施形態に係る軌道レールの要部構成を説明するための縦断面図である。FIG. 14 is a longitudinal cross-sectional view for explaining the main part configuration of the track rail according to this embodiment. 図１５は、本実施形態に係る軌道レールを採用したリニアガイドのＦＥＭ（Finite Element Method：有限要素法）解析モデルを示す図である。FIG. 15 is a diagram showing an FEM (Finite Element Method) analysis model of a linear guide that employs the track rail according to the present embodiment. 図１６は、図１５で示したＦＥＭ解析モデルに基づき実施したシミュレーションによって得られた理論剛性の結果を示すグラフ図であり、特に、垂直剛性の計算結果を示している。FIG. 16 is a graph diagram showing the results of theoretical stiffness obtained by simulation based on the FEM analysis model shown in FIG. 15, and particularly shows the calculation results of vertical stiffness. 図１７は、図１５で示したＦＥＭ解析モデルに基づき実施したシミュレーションによって得られた理論剛性の結果を示すグラフ図であり、特に、水平剛性の計算結果を示している。FIG. 17 is a graph diagram showing the results of theoretical stiffness obtained by simulation based on the FEM analysis model shown in FIG. 15, and particularly shows the calculation results of horizontal stiffness. 図１８は、図１５で示したＦＥＭ解析モデルに基づき実施したシミュレーションによって得られた理論剛性の結果を示すグラフ図であり、特に、ローリング剛性の計算結果を示している。FIG. 18 is a graph diagram showing the results of theoretical stiffness obtained by a simulation performed based on the FEM analysis model shown in FIG. 15, and particularly shows the calculation results of rolling stiffness. 図１９は、図１５で示したＦＥＭ解析モデルに基づき実施したシミュレーションによって得られた理論剛性の結果を示すグラフ図であり、特に、ピッチング剛性の計算結果を示している。FIG. 19 is a graph diagram showing the results of theoretical stiffness obtained by a simulation performed based on the FEM analysis model shown in FIG. 15, and particularly shows the calculation results of pitching stiffness. 図２０は、図１５で示したＦＥＭ解析モデルに基づき実施したシミュレーションによって得られた理論剛性の結果を示すグラフ図であり、特に、ヨーイング剛性の計算結果を示している。FIG. 20 is a graph diagram showing the results of theoretical stiffness obtained by a simulation performed based on the FEM analysis model shown in FIG. 15, and particularly shows the calculation results of yawing stiffness.
　以下、本発明を実施するための好適な実施形態について、図面を用いて説明する。なお、以下の実施形態は、各請求項に係る発明を限定するものではなく、また、実施形態の中で説明されている特徴の組み合わせの全てが発明の解決手段に必須であるとは限らない。 Hereinafter, preferred embodiments for implementing the present invention will be described using the drawings. Note that the following embodiments do not limit the inventions claimed in each claim, and not all combinations of features described in the embodiments are essential to the solution of the invention. .
　まず、図１および図２を用いて、本発明を適用可能な運動案内装置としてのリニアガイド１０の全体構成について説明する。ここで、図１は、本発明を適用可能な運動案内装置であるリニアガイドの一形態を例示する外観斜視図である。また、図２は、図１で示したリニアガイドが備える無限循環路を説明するための断面図である。 First, the overall configuration of a linear guide 10 as a motion guide device to which the present invention can be applied will be described using FIGS. 1 and 2. Here, FIG. 1 is an external perspective view illustrating one form of a linear guide that is a motion guide device to which the present invention is applicable. Moreover, FIG. 2 is a sectional view for explaining the endless circulation path provided in the linear guide shown in FIG.
　本発明を適用可能な運動案内装置としてのリニアガイド１０は、軌道部材としての軌道レール１１と、軌道レール１１に複数の転動体として設置されるボール１２を介してスライド可能に組み付けられた移動部材としての移動ブロック１３とを備えている。 The linear guide 10 as a motion guide device to which the present invention is applicable includes a track rail 11 as a track member, and a moving member slidably assembled via balls 12 installed on the track rail 11 as a plurality of rolling elements. A moving block 13 is provided.
　軌道レール１１には、取付手段としてのボルトを軌道レール１１の上面から下面に通すことで、軌道レール１１をベースに取り付けるためのボルト孔１１ｂが等間隔で形成されており、このボルト孔１１ｂを利用することで、軌道レール１１がベース面に固定設置できるようになっている。また、軌道レール１１は、その長手方向と直交する断面が概略矩形状に形成された長尺の部材であり、その表面には、ボール１２が転がる際の軌道になる軌道面としての転動体転走面１１ａが軌道レール１１の全長に亘って形成されている。 The track rail 11 has bolt holes 11b formed at equal intervals for attaching the track rail 11 to the base by passing bolts as attachment means from the top surface to the bottom surface of the track rail 11. By using this, the track rail 11 can be fixedly installed on the base surface. The track rail 11 is an elongated member whose cross section perpendicular to its longitudinal direction is formed into a generally rectangular shape. A running surface 11a is formed over the entire length of the track rail 11.
　軌道レール１１については、直線的に延びるように形成されることもあるし、曲線的に延びるように形成されることもある。また、図１および図２において例示する転動体転走面１１ａの本数は左右で２条ずつ合計４条設けられているが、その条数はリニアガイド１０の用途等に応じて任意に変更することができる。 The track rail 11 may be formed to extend linearly, or may be formed to extend curvedly. In addition, although the number of rolling element rolling surfaces 11a illustrated in FIGS. 1 and 2 is 4 in total, 2 on the left and 2 on the left, the number may be changed arbitrarily depending on the purpose of the linear guide 10, etc. be able to.
　一方、移動ブロック１３は、移動ブロック本体部１４と、一対の蓋部材１７，１７と、一対のエンドシール１５，１５等によって構成されている。 On the other hand, the moving block 13 is composed of a moving block main body 14, a pair of lid members 17, 17, a pair of end seals 15, 15, etc.
　移動ブロック１３を構成する移動ブロック本体部１４には、転動体転走面１１ａとそれぞれ対応する位置に軌道面としての負荷転動体転走面１４ａが設けられている。軌道レール１１の転動体転走面１１ａと移動ブロック本体部１４の負荷転動体転走面１４ａとによって負荷転動体転走路２２が形成され、この負荷転動体転走路２２に複数のボール１２が負荷を受けた状態で転走自在に挟まれている。また、移動ブロック本体部１４には、各転動体転走面１１ａと平行に延びる４条の転動体戻り通路２３がその内部に形成されている。 The moving block body 14 constituting the moving block 13 is provided with loaded rolling element rolling surfaces 14a as raceway surfaces at positions corresponding to the rolling element rolling surfaces 11a. A loaded rolling element rolling path 22 is formed by the rolling element rolling surface 11a of the track rail 11 and the loaded rolling element rolling surface 14a of the moving block main body 14, and a plurality of balls 12 are loaded on this loaded rolling element rolling path 22. It is sandwiched in a state where it can roll freely. Moreover, four rolling element return passages 23 extending parallel to each rolling element rolling surface 11a are formed inside the moving block main body part 14.
　さらに、移動ブロック本体部１４の移動方向の両端部には、一対の蓋部材１７，１７が設置されている。この一対の蓋部材１７，１７には、それぞれに方向転換路２５が設けられている。この方向転換路２５は、転動体戻り通路２３の端と負荷転動体転走路２２の端とを結ぶことができるように構成されている。したがって、１つの負荷転動体転走路２２および転動体戻り通路２３と、それらを結ぶ一対の方向転換路２５，２５との組み合わせによって、１つの無限循環路が構成されている（図２参照）。 Further, a pair of lid members 17, 17 are installed at both ends of the moving block main body 14 in the moving direction. A direction change path 25 is provided in each of the pair of lid members 17, 17. This direction change path 25 is configured to connect the end of the rolling element return path 23 and the end of the loaded rolling element rolling path 22. Therefore, one infinite circulation path is constituted by a combination of one loaded rolling element rolling path 22, one rolling element return path 23, and a pair of direction changing paths 25, 25 that connect them (see FIG. 2).
　そして、複数のボール１２が、負荷転動体転走路２２と転動体戻り通路２３と一対の方向転換路２５，２５とから構成される無限循環路に無限循環可能に設置されることにより、移動ブロック１３が軌道レール１１の長手方向に対して相対的に往復運動可能となっている。 The plurality of balls 12 are installed in an endless circulation path composed of a loaded rolling element rolling path 22, a rolling element return path 23, and a pair of direction change paths 25, 25, so that the balls 12 can be endlessly circulated. 13 is capable of reciprocating relative to the longitudinal direction of the track rail 11.
　また、移動ブロック本体部１４の上面の四隅には、取付手段としてのボルトを移動ブロック本体部１４の上面から下面側に向けて捻じ込むことで、移動ブロック１３に対して外部部材を取り付けることができるボルト穴１４ｂが形成されている（図１参照）。このボルト穴１４ｂを利用することで、移動ブロック１３に対して外部部材を固定して、軌道レール１１が固定されているベース面に対して外部部材を往復運動させることができる。 In addition, external members can be attached to the moving block 13 by screwing bolts as attachment means from the upper surface of the moving block main body 14 toward the lower surface at the four corners of the upper surface of the moving block main body 14. A bolt hole 14b is formed (see FIG. 1). By using this bolt hole 14b, the external member can be fixed to the moving block 13 and can be reciprocated with respect to the base surface to which the track rail 11 is fixed.
　また、一対の蓋部材１７，１７のそれぞれには、一対の方向転換路２５，２５の外側において移動ブロック１３と軌道レール１１との隙間を塞ぐように、シール部材としての一対のエンドシール１５，１５が設置されている。このエンドシール１５は、軌道レール１１との接触箇所にリップ部を備えることができ、このリップ部もしくはエンドシール１５自体が軌道レール１１に対して隙間なく摺接することで、リニアガイド１０に対して防塵効果を付与することができるようになっている。 Further, each of the pair of lid members 17, 17 includes a pair of end seals 15 as seal members, so as to close the gap between the moving block 13 and the track rail 11 on the outside of the pair of direction change paths 25, 25. 15 have been installed. This end seal 15 can be provided with a lip portion at the contact point with the track rail 11, and this lip portion or the end seal 15 itself slides against the track rail 11 without a gap, so that the linear guide 10 It is now possible to add a dustproof effect.
　また、移動ブロック本体部１４と一対の蓋部材１７，１７との間に対して、図１および図２では図示を省略したリターンプレートが挟み込まれている。この不図示のリターンプレートは、第１の機能として、移動ブロック本体部１４における蓋部材１７の設置面を塞ぐ機能を発揮しており、移動ブロック本体部１４と蓋部材１７の間に存在する隙間を塞ぐことで、移動ブロック本体部１４と蓋部材１７との密閉性を高める役割を果たしている。また、第２の機能として、不図示のリターンプレートには、方向転換路２５の内周側の路面２５ｂが形成されており、蓋部材１７に形成された外周側の路面２５ａと協働することで、方向転換路２５を形成するように構成されている。 Further, a return plate, which is not shown in FIGS. 1 and 2, is sandwiched between the moving block main body 14 and the pair of lid members 17, 17. The first function of this return plate (not shown) is to close the installation surface of the cover member 17 in the moving block main body 14, and the gap between the moving block main body 14 and the cover member 17. By blocking the movable block main body 14 and the lid member 17, it serves to improve the sealing performance between the movable block main body 14 and the lid member 17. Further, as a second function, the return plate (not shown) is formed with a road surface 25b on the inner circumference side of the direction change path 25, and cooperates with a road surface 25a on the outer circumference side formed on the lid member 17. , and is configured to form a direction change path 25.
　以上、本発明を適用可能な運動案内装置としてのリニアガイド１０の全体構成について説明した。次に、本発明をリニアガイド１０に適用するための具体的な構成についての説明を行う。 The overall configuration of the linear guide 10 as a motion guide device to which the present invention is applicable has been described above. Next, a specific configuration for applying the present invention to the linear guide 10 will be explained.
　まず、図３～図１１を用いて、本発明を適用した移動部材である移動ブロック１３を構成する移動ブロック本体部１４の具体的な構成を説明する。ここで、図３は、本実施形態に係る移動ブロック本体部を示す外観斜視図である。図４は、本実施形態の移動ブロック本体部を構成する外周部を示す図であり、図中の分図（ａ）が正面視を示し、分図（ｂ）が右側面視を示し、分図（ｃ）が分図（ｂ）中のＡ－Ａ線断面を示している。図５は、本実施形態に係る移動ブロック本体部の製造方法を説明するための部分断面図であり、図中の分図（ａ）が正面視を示し、分図（ｂ）が右側面視を示し、分図（ｃ）が平面視を示している。図６は、本実施形態に係る移動ブロック本体部が有する固定穴としてのボルト穴１４ｂを形成するための埋め子部材を示す図であり、図中の分図（ａ）が平面視を示し、分図（ｂ）が分図（ａ）中のＢ－Ｂ線断面を示している。図７は、図６で示した埋め子部材に接続して複数の埋め子部材を連結する埋め子連結部を示す図であり、図中の分図（ａ）が平面視を示し、分図（ｂ）が分図（ａ）中のＣ－Ｃ線断面を示している。図８は、本実施形態の移動ブロック本体部に一対の蓋部材１７，１７を取り付けるためのネジ穴を形成するための埋め子部材を示す図であり、図中の分図（ａ）が正面視を示し、分図（ｂ）が分図（ａ）中のＤ－Ｄ線断面を示している。図９は、図８で示した埋め子部材に接続して複数の埋め子部材を連結する埋め子連結部を示す図であり、図中の分図（ａ）が正面視を示し、分図（ｂ）が分図（ａ）中のＥ－Ｅ線断面を示している。図１０および図１１は、本実施形態に係る移動ブロック本体部の製造に使用される固定治具を示す図である。図１０において、分図（ａ）は左側面視を示し、分図（ｂ）は正面視を示している。また、図１１において、分図（ａ）は背面視を示し、分図（ｂ）は左側面視を示している。 First, using FIGS. 3 to 11, a specific configuration of the movable block main body 14 that constitutes the movable block 13, which is a movable member to which the present invention is applied, will be explained. Here, FIG. 3 is an external perspective view showing the moving block main body according to the present embodiment. FIG. 4 is a diagram illustrating the outer circumferential portion constituting the main body of the movable block of this embodiment, in which the partial view (a) shows a front view, the partial view (b) shows a right side view, and Figure (c) shows a cross section taken along line AA in figure (b). FIG. 5 is a partial sectional view for explaining the manufacturing method of the moving block main body according to the present embodiment, in which the partial view (a) shows a front view, and the partial view (b) shows a right side view. Figure (c) shows a plan view. FIG. 6 is a diagram showing a filler member for forming a bolt hole 14b as a fixing hole of the movable block main body according to the present embodiment, and a partial view (a) in the diagram shows a plan view, Part (b) shows a cross section taken along line BB in part (a). FIG. 7 is a diagram illustrating an insert connecting part that connects to the insert member shown in FIG. 6 and connects a plurality of insert members. (b) shows a cross section taken along the line CC in part (a). FIG. 8 is a diagram showing a filler member for forming screw holes for attaching a pair of lid members 17, 17 to the moving block main body of the present embodiment, and part (a) in the figure is a front view. Figure (b) shows a cross section taken along line DD in figure (a). FIG. 9 is a diagram illustrating an embedder connecting part that connects to the embedder member shown in FIG. 8 and connects a plurality of embedder members. (b) shows a cross section taken along the line E--E in part (a). 10 and 11 are diagrams showing a fixing jig used for manufacturing the moving block main body according to this embodiment. In FIG. 10, the partial view (a) shows a left side view, and the partial view (b) shows a front view. Further, in FIG. 11, the partial view (a) shows a rear view, and the partial view (b) shows a left side view.
　図３および図４を参照すれば明らかな通り、本発明を適用した移動部材である移動ブロック１３を構成する移動ブロック本体部１４は、往復運動の方向に貫通する貫通孔３２を有する管状の金属材料からなる外周部３１と、外周部３１が有する貫通孔３２を埋めるようにミネラルキャスティングによって充填された充填部４１と、を有して形成されている。 As is clear from FIGS. 3 and 4, the moving block main body 14 constituting the moving block 13, which is a moving member to which the present invention is applied, is made of a tubular metal having a through hole 32 penetrating in the direction of reciprocating motion. It is formed to have an outer peripheral part 31 made of a material, and a filling part 41 filled with mineral casting so as to fill the through hole 32 that the outer peripheral part 31 has.
　図１および図２を用いて上述したように、移動ブロック本体部１４では、４条の転動体戻り通路２３が移動ブロック本体部１４の内部に形成されている。これら４条の転動体戻り通路２３は、複数のボール１２を無負荷の状態で循環させることが可能な管状の金属材料からなる金属管部材４３によって形成されている。なお、金属管部材４３は、本発明の管部材を構成している。 As described above with reference to FIGS. 1 and 2, four rolling element return passages 23 are formed inside the moving block main body 14. These four rolling element return passages 23 are formed by a metal pipe member 43 made of a tubular metal material that allows the plurality of balls 12 to circulate in an unloaded state. Note that the metal tube member 43 constitutes the tube member of the present invention.
　また、図１および図２を用いて上述したように、移動ブロック本体部１４では、外部部材又は構成部品を固定接続するための固定穴を有しており、この固定穴については、移動ブロック本体部１４の上面の四隅に形成されたボルト穴１４ｂと、移動ブロック本体部１４の正面と背面に対してそれぞれ取り付けられる一対の蓋部材１７，１７を取り付けるためのネジ穴１４ｃとが存在している。 Further, as described above with reference to FIGS. 1 and 2, the movable block main body 14 has a fixing hole for fixedly connecting an external member or component. There are bolt holes 14b formed at the four corners of the upper surface of the section 14, and screw holes 14c for attaching a pair of cover members 17, 17 that are attached to the front and back surfaces of the moving block main body section 14, respectively. .
　本発明の固定穴であるボルト穴１４ｂは、当該ボルト穴１４ｂの周囲を形成する金属材料からなる埋め子部材４４によって形成されている。ボルト穴１４ｂを形成する埋め子部材４４の具体的な形状が、図６に示されている。 The bolt hole 14b, which is the fixing hole of the present invention, is formed by a filler member 44 made of a metal material and forming the periphery of the bolt hole 14b. A specific shape of the filler member 44 forming the bolt hole 14b is shown in FIG.
　図６に示すように、埋め子部材４４においてボルト穴１４ｂが開口していない側の端部、つまり、ミネラルキャスティングによって充填される充填部４１に周囲を埋められる側の端部には、凸形状部４４ａが形成されており、この凸形状部４４ａは、図７で示される埋め子連結部５４が接続する箇所となっている。埋め子連結部５４は、プレート状をした長尺の板部材であり、両端部に埋め子部材４４の凸形状部４４ａを嵌め込むことができる２つの連結孔５４ａを有している。したがって、本実施形態の埋め子連結部５４は、２つの連結孔５４ａを利用することで、両端部にそれぞれ１つずつ、合計２つの埋め子部材４４を設置して連結することが可能となっている。なお、本実施形態において、埋め子部材４４の凸形状部４４ａと埋め子連結部５４の連結孔５４ａとの嵌め込み状態は、例えば、圧入のような状態で強固に結合した状態となっている。そして、本実施形態では、ボルト穴１４ｂを形成する埋め子部材４４は、移動ブロック本体部１４に対して４つ設置されるので、２本の埋め子連結部５４によって２個ずつの埋め子部材４４が連結される。また、埋め子連結部５４は、２つの埋め子部材４４を強固に連結した状態で充填部４１の内部に埋め込まれることになるので、埋め子部材４４を強固に固定するアンカー効果を発揮できる。 As shown in FIG. 6, the end of the filler member 44 on the side where the bolt hole 14b is not opened, that is, the end on the side where the periphery is filled with the filling part 41 filled with mineral casting, has a convex shape. A portion 44a is formed, and this convex portion 44a is a location to which the insert connecting portion 54 shown in FIG. 7 is connected. The insert connecting portion 54 is a long plate member having a plate shape, and has two connecting holes 54a at both ends into which the convex portion 44a of the insert member 44 can be fitted. Therefore, by using the two connecting holes 54a, the implant connecting part 54 of this embodiment can install and connect a total of two implant members 44, one at each end. ing. In the present embodiment, the convex portion 44a of the insert member 44 and the connecting hole 54a of the insert connecting portion 54 are fitted into each other, such that they are firmly connected by press-fitting, for example. In the present embodiment, four filler members 44 forming the bolt holes 14b are installed in the movable block main body 14, so two filler members 44 each are connected by two filler connecting portions 54. 44 are connected. Further, since the implant connecting portion 54 is embedded inside the filling portion 41 in a state in which the two implant members 44 are firmly connected, it can exert an anchor effect to firmly fix the implant members 44.
　さらに、図６および図７で示した本実施形態の移動ブロック本体部１４では、埋め子部材４４に形成された凸形状部４４ａと、埋め子連結部５４に形成された連結孔５４ａが円筒形状もしくは円形形状をしていた。しかしながら、本発明の適用範囲は円筒形状もしくは円形形状に限られるものではない。例えば、本発明の凸形状部と連結孔が、多角形からなる嵌め合い形状を有することで、埋め子部材４４は埋め子連結部５４に対して回転移動が不可能な形状とすることができる。かかる形状の採用によって、埋め子部材４４と埋め子連結部５４とのさらに強固な設置状態が実現できる。 Furthermore, in the movable block main body 14 of the present embodiment shown in FIGS. 6 and 7, the convex portion 44a formed in the insert member 44 and the connecting hole 54a formed in the insert connecting portion 54 have a cylindrical shape. Or it was circular in shape. However, the scope of application of the present invention is not limited to cylindrical or circular shapes. For example, since the convex portion and the connecting hole of the present invention have a polygonal fitting shape, the embedding member 44 can be shaped to be unable to rotate relative to the embedding connection portion 54. . By adopting such a shape, it is possible to realize a more firmly installed state of the insert member 44 and the insert connecting portion 54.
　本発明の固定穴であるネジ穴１４ｃは、当該ネジ穴１４ｃの周囲を形成する金属材料からなる埋め子部材４５によって形成されている。ネジ穴１４ｃを形成する埋め子部材４５の具体的な形状が、図８に示されている。 The screw hole 14c, which is the fixing hole of the present invention, is formed by a filler member 45 made of a metal material and forming the periphery of the screw hole 14c. A specific shape of the filler member 45 that forms the screw hole 14c is shown in FIG.
　図８に示すように、埋め子部材４５においてネジ穴１４ｃが開口していない側の端部、つまり、ミネラルキャスティングによって充填される充填部４１に周囲を埋められる側の端部には、凸形状部４５ａが形成されており、この凸形状部４５ａは、図９で示される埋め子連結部５５が接続する箇所となっている。埋め子連結部５５は、プレート状をした長尺の板部材であり、両端部に埋め子部材４５の凸形状部４５ａを嵌め込むことができる２つの連結孔５５ａを有している。したがって、本実施形態の埋め子連結部５５は、２つの連結孔５５ａを利用することで、両端部にそれぞれ１つずつ、合計２つの埋め子部材４５を設置して連結することが可能となっている。なお、本実施形態において、埋め子部材４５の凸形状部４５ａと埋め子連結部５５の連結孔５５ａとの嵌め込み状態は、例えば、圧入のような状態で強固に結合した状態となっている。そして、本実施形態では、ネジ穴１４ｃを形成する埋め子部材４５は、移動ブロック本体部１４の正面側と背面側のそれぞれに対して２つずつ、合計４つ設置されるので、２本の埋め子連結部５５によって２個ずつの埋め子部材４５が連結される。また、埋め子連結部５５は、２つの埋め子部材４５を強固に連結した状態で充填部４１の内部に埋め込まれることになるので、埋め子部材４５を強固に固定するアンカー効果を発揮できる。 As shown in FIG. 8, the end of the filler member 45 on the side where the screw hole 14c is not opened, that is, the end on the side where the periphery is filled with the filling part 41 filled with mineral casting, has a convex shape. A portion 45a is formed, and this convex portion 45a is a location to which a recess connecting portion 55 shown in FIG. 9 is connected. The insert connecting portion 55 is a long plate member having a plate shape, and has two connecting holes 55a at both ends into which the convex portions 45a of the insert member 45 can be fitted. Therefore, by using the two connecting holes 55a, the embedder connecting portion 55 of the present embodiment can connect two embedder members 45, one at each end, in total. ing. In the present embodiment, the convex portion 45a of the insert member 45 and the connecting hole 55a of the insert connecting portion 55 are fitted into each other, such that they are firmly connected by press-fitting, for example. In this embodiment, a total of four filler members 45 forming the screw holes 14c are installed, two on each of the front side and the back side of the moving block main body 14, so that two Two insert members 45 are connected by the insert connecting portion 55 . Further, since the implant connecting portion 55 is embedded inside the filling portion 41 in a state in which the two implant members 45 are firmly connected, it can exert an anchor effect to firmly fix the implant members 45.
　さらに、図８および図９で示した本実施形態の移動ブロック本体部１４では、埋め子部材４５に形成された凸形状部４５ａと、埋め子連結部５５に形成された連結孔５５ａが円筒形状もしくは円形形状をしていた。しかしながら、本発明の適用範囲は円筒形状もしくは円形形状に限られるものではない。例えば、本発明の凸形状部と連結孔が、多角形からなる嵌め合い形状を有することで、埋め子部材４５は埋め子連結部５５に対して回転移動が不可能な形状とすることができる。かかる形状の採用によって、埋め子部材４５と埋め子連結部５５とのさらに強固な設置状態が実現できる。 Furthermore, in the movable block main body 14 of the present embodiment shown in FIGS. 8 and 9, the convex portion 45a formed in the insert member 45 and the connecting hole 55a formed in the insert connecting portion 55 have a cylindrical shape. Or it was circular in shape. However, the scope of application of the present invention is not limited to cylindrical or circular shapes. For example, since the convex portion and the connecting hole of the present invention have a polygonal fitting shape, the insert member 45 can be shaped to be unable to rotate relative to the insert connecting portion 55. . By adopting such a shape, it is possible to realize a more firmly installed state of the insert member 45 and the insert connecting portion 55.
　次に、主に図５等を参照して、本実施形態に係る移動ブロック本体部１４の製造方法を説明する。 Next, a method for manufacturing the moving block main body portion 14 according to the present embodiment will be described, mainly with reference to FIG. 5 and the like.
　まず、移動ブロック本体部１４の上面の四隅に配置されるボルト穴１４ｂについては、図４に示すように、管状の金属材料からなる外周部３１の上面に対して開口孔３１ａを形成しておき、この開口孔３１ａに対して埋め子部材４４を仮固定する。つまり、ボルト穴１４ｂを形成する埋め子部材４４は、外周部３１と接触した状態で仮固定される。この仮固定は、図５中の分図（ａ）および分図（ｂ）に示すように、ボルトなどの締結手段を用いて実施すればよい。このように、埋め子部材４４を外周部３１が有する貫通孔３２の内部の所定位置に配置した状態で、当該埋め子部材４４の外面と貫通孔３２の内面との間の隙間を埋めるように充填部４１がミネラルキャスティングによって充填されることで、埋め子部材４４を正しい位置に位置決め固定することができる。 First, for the bolt holes 14b arranged at the four corners of the upper surface of the moving block main body 14, as shown in FIG. , the insert member 44 is temporarily fixed to this opening hole 31a. That is, the filler member 44 that forms the bolt hole 14b is temporarily fixed in a state in which it is in contact with the outer peripheral portion 31. This temporary fixing may be carried out using fastening means such as bolts, as shown in FIGS. 5(a) and 5(b). In this way, with the filler member 44 disposed at a predetermined position inside the through hole 32 of the outer peripheral portion 31, the gap between the outer surface of the filler member 44 and the inner surface of the through hole 32 is filled. By filling the filling portion 41 with mineral casting, the insert member 44 can be positioned and fixed at a correct position.
　一方、転動体戻り通路２３を構成する金属管部材４３と、ネジ穴１４ｃを構成する埋め子部材４５については、外周部３１の往復運動の方向に貫通する貫通孔３２の内部に配置される。つまり、金属管部材４３と埋め子部材４５は、外周部３１と非接触の状態で配置されるため、ミネラルキャスティングによって充填部４１が充填される際に位置決めを行う必要がある。そこで、本実施形態では、図１０および図１１で示す固定治具６１，６２を利用している。この固定治具６１，６２の使用方法を説明すると、まず、固定治具６１，６２のそれぞれに対して、埋め子連結部５５によって２つの埋め子部材４５が連結された状態の埋め子部材４５をボルト等の締結手段で固定する。また、２つの固定治具６１，６２のいずれか一方、例えば、外周部３１の正面側に設置される固定治具６１に対して、金属管部材４３を位置決めするために使用される軸状をした取付棒６３をボルト等の締結手段で固定した上で、金属管部材４３の転動体戻り通路２３を利用して取付棒６３に金属管部材４３を差し込み、転動体戻り通路２３を構成する管状の金属材料からなる金属管部材４３を固定治具６１に固定する。なお、取付棒６３は、両軸端部にネジ溝が切られており、このネジ溝を利用することで、固定治具６１，６２に対する固定が可能となっている。また、取付棒６３は、両軸端部に形成されたネジ溝以外の軸の外周径寸法が、金属管部材４３に形成された転動体戻り通路２３の内周径寸法よりも僅かに小さな寸法となっており、取付棒６３に対する金属管部材４３の差し込みが容易であり、かつ、隙間なく実現可能となっている。そして、本実施形態では、金属管部材４３は４本存在するので、この段階で固定治具６１には、４本の取付棒６３を利用して４本の金属管部材４３が固定される。 On the other hand, the metal pipe member 43 that constitutes the rolling element return passage 23 and the filler member 45 that constitutes the screw hole 14c are arranged inside the through hole 32 that penetrates in the direction of the reciprocating motion of the outer peripheral portion 31. In other words, since the metal tube member 43 and the insert member 45 are arranged without contacting the outer peripheral portion 31, it is necessary to position them when the filling portion 41 is filled with mineral casting. Therefore, in this embodiment, fixing jigs 61 and 62 shown in FIGS. 10 and 11 are used. To explain how to use the fixing jigs 61 and 62, first, the two insert members 45 are connected to each other by the insert connecting portion 55. Fix it with fastening means such as bolts. In addition, a shaft shape used for positioning the metal tube member 43 with respect to one of the two fixing jigs 61 and 62, for example, the fixing jig 61 installed on the front side of the outer circumferential part 31. After fixing the attached mounting rod 63 with fastening means such as bolts, the metal tube member 43 is inserted into the mounting rod 63 using the rolling element return passage 23 of the metal tube member 43, and the tubular shape forming the rolling element return passage 23 is inserted. A metal pipe member 43 made of a metal material is fixed to a fixing jig 61. Note that the mounting rod 63 has thread grooves cut at both shaft ends, and can be fixed to the fixing jigs 61 and 62 by using the thread grooves. In addition, the mounting rod 63 has an outer circumferential diameter dimension of the shaft other than the thread grooves formed at both shaft ends that is slightly smaller than an inner circumferential diameter dimension of the rolling element return passage 23 formed in the metal tube member 43. Therefore, the metal pipe member 43 can be easily inserted into the mounting rod 63 without any gaps. In this embodiment, since there are four metal tube members 43, the four metal tube members 43 are fixed to the fixing jig 61 using the four attachment rods 63 at this stage.
　続いて、外周部３１の正面側に対して固定治具６１を嵌め込むとともに、外周部３１の背面側に対して固定治具６２を嵌め込む。なお、外周部３１に対する固定治具６１，６２の位置決めについて説明すると、例えば、図１０で示される正面側の固定治具６１では、図１０中の分図（ｂ）の右上コーナー部６１ａを外周部３１の外郭に突き当てた状態で、左下コーナー部にある位置決め用ネジ穴６１ｂを用いてネジ止めすることで、２面１点接触が実現し、外周部３１の正面側の所定位置に対する固定治具６１の位置決めが実現する。 Subsequently, the fixing jig 61 is fitted to the front side of the outer circumferential part 31, and the fixing jig 62 is fitted to the back side of the outer circumferential part 31. In addition, to explain the positioning of the fixing jigs 61 and 62 with respect to the outer peripheral part 31, for example, in the front side fixing jig 61 shown in FIG. By tightening the screw using the positioning screw hole 61b in the lower left corner while abutting against the outer shell of the outer peripheral part 31, one point contact on two surfaces is achieved, and the outer peripheral part 31 is fixed at a predetermined position on the front side. Positioning of the jig 61 is realized.
　また、外周部３１の背面側についても同様であり、図１１で示される背面側の固定治具６２では、図１１中の分図（ａ）の左上コーナー部６２ａを外周部３１の外郭に突き当てた状態で、右下コーナー部にある位置決め用ネジ穴６２ｂを用いてネジ止めすることで、２面１点接触が実現し、外周部３１の背面側の所定位置に対する固定治具６２の位置決めが実現する。 The same applies to the back side of the outer circumferential part 31, and in the fixing jig 62 on the back side shown in FIG. By tightening the screws using the positioning screw hole 62b in the lower right corner in this state, one-point contact on two surfaces is achieved, and the fixing jig 62 is positioned at a predetermined position on the back side of the outer circumferential part 31. will be realized.
　外周部３１に対する固定治具６１，６２の位置決めが完了した状態で、ボルト等の締結手段を用いて背面側の固定治具６２に対して金属管部材４３が差し込まれた状態の取付棒６３を固定する。この取付棒６３を利用した固定方法によって、転動体戻り通路２３を構成する金属管部材４３が背面側の固定治具６２に固定される。かかる段階での状態が、図５に示されており、外周部３１の往復運動の方向に貫通する貫通孔３２の内部に対して、転動体戻り通路２３を構成する４本の金属管部材４３と、ボルト穴１４ｂを形成する４つの埋め子部材４４と、ネジ穴１４ｃを形成する４つの埋め子部材４５の位置決めが完了する。 After the positioning of the fixing jigs 61 and 62 with respect to the outer peripheral part 31 is completed, the mounting rod 63 with the metal pipe member 43 inserted into the fixing jig 62 on the back side is attached using fastening means such as bolts. Fix it. By this fixing method using the attachment rod 63, the metal tube member 43 constituting the rolling element return passage 23 is fixed to the fixing jig 62 on the back side. The state at this stage is shown in FIG. 5, in which four metal pipe members 43 forming the rolling element return passage 23 are inserted into the through hole 32 penetrating in the direction of the reciprocating motion of the outer peripheral portion 31. Then, the positioning of the four filler members 44 forming the bolt holes 14b and the four filler members 45 forming the screw holes 14c is completed.
　図５で示す位置決めの状態が完了すると、正面側に配置された固定治具６１の中央やや上方に位置する充填孔６１ｃを使用して、ミネラルキャスティングによる充填部４１の充填が行われる。このミネラルキャスティングによる充填部４１の充填は、転動体戻り通路２３を構成する金属管部材４３の外面と貫通孔３２の内面との間の隙間を埋めるように実施されるとともに、ボルト穴１４ｂを形成する埋め子部材４４の外面と貫通孔３２の内面との間の隙間を埋めるように実施されるとともに、ネジ穴１４ｃを形成する埋め子部材４５の外面と貫通孔３２の内面との間の隙間を埋めるように実施される。 When the positioning state shown in FIG. 5 is completed, the filling portion 41 is filled with mineral casting using the filling hole 61c located slightly above the center of the fixing jig 61 placed on the front side. The filling portion 41 is filled with mineral casting so as to fill the gap between the outer surface of the metal pipe member 43 that constitutes the rolling element return passage 23 and the inner surface of the through hole 32, and also forms the bolt hole 14b. The gap between the outer surface of the filler member 45 that forms the screw hole 14c and the inner surface of the through hole 32 is filled. It will be implemented to fill in the gaps.
　この際、ボルト穴１４ｂを形成する埋め子部材４４と、ネジ穴１４ｃを形成する埋め子部材４５については、それぞれが埋め子連結部５４と埋め子連結部５５によって連結された状態となっているので、各埋め子連結部５４，５５がアンカー効果を発揮して、各埋め子部材４４，４５の強固な位置決め固定が実現する。 At this time, the filler member 44 forming the bolt hole 14b and the filler member 45 forming the screw hole 14c are connected by the filler connecting portion 54 and the filler connecting portion 55, respectively. Therefore, each of the insert connecting portions 54 and 55 exhibits an anchor effect, and the respective insert members 44 and 45 are firmly positioned and fixed.
　また、本実施形態の移動ブロック本体部１４については、ミネラルキャスティングによる充填部４１の充填が行われる隙間は狭い幅の箇所も存在しているので、ミネラルキャスティングに用いられる鉱石等の骨材については、例えば、０．３ｍｍ以下の大きさのものを採用することが好ましい。このように、ミネラルキャスティングに用いられる骨材の大きさを０．３ｍｍ以下とすることで、材料の流動性を向上させることが可能となり、例えば、φ０．８ｍｍ程度の穴（隙間）に対してもミネラルキャスティングによる充填部４１の充填を実施することが可能となる。 In addition, regarding the movable block main body 14 of this embodiment, there are some narrow gaps where the filling portion 41 is filled with mineral casting, so aggregates such as ore used in mineral casting are For example, it is preferable to use one having a size of 0.3 mm or less. In this way, by reducing the size of the aggregate used for mineral casting to 0.3 mm or less, it is possible to improve the fluidity of the material. It is also possible to fill the filling portion 41 by mineral casting.
　ミネラルキャスティングによる充填部４１の充填が完了すると、固定治具６１，６２に設置されたボルト等の締結手段を全て取り外し、また、外周部３１から固定治具６１，６２を取り外し、さらに、金属管部材４３の転動体戻り通路２３に差し込まれた状態の取付棒６３を引き抜くことで、図３で示されている本実施形態に係る移動ブロック本体部１４が完成する。 When filling of the filling part 41 with mineral casting is completed, all fastening means such as bolts installed on the fixing jigs 61 and 62 are removed, and the fixing jigs 61 and 62 are removed from the outer peripheral part 31, and the metal pipes are By pulling out the mounting rod 63 inserted into the rolling element return passage 23 of the member 43, the moving block main body 14 according to the present embodiment shown in FIG. 3 is completed.
　以上説明した本実施形態の移動ブロック本体部１４によれば、ミネラルキャスティングによる充填部４１の充填前に、外周部３１の貫通孔３２の内部に対して予め金属部品を位置決めして配置しておくので、充填後に取付用のねじ穴加工等の後加工が不要となり、製造コストの面でも好ましい。 According to the movable block main body 14 of the present embodiment described above, before filling the filling portion 41 with mineral casting, metal parts are positioned and arranged in advance inside the through hole 32 of the outer peripheral portion 31. This eliminates the need for post-processing such as drilling screw holes for mounting after filling, which is advantageous in terms of manufacturing costs.
　また、本実施形態の移動ブロック本体部１４によれば、外周部３１の貫通孔３２の内部にミネラルキャスティングによる充填部４１が詰まっているため、音の反響を防ぐとともに減衰性の向上を図ることも可能である。 Further, according to the moving block main body 14 of the present embodiment, the through hole 32 of the outer peripheral portion 31 is filled with the filling portion 41 made of mineral casting, which prevents sound echoes and improves damping performance. is also possible.
　以上、図３～図１１を用いて、本発明を適用した移動部材である移動ブロック１３を構成する移動ブロック本体部１４の具体的な構成と、その製造方法を説明した。次に、図１２～図１４を用いて、本発明を適用した軌道部材である軌道レール１１の具体的な構成と、その製造方法を説明する。ここで、図１２は、本実施形態に係る軌道レールを示す外観斜視図である。図１３は、本実施形態に係る軌道レールの製造方法を説明するための図である。図１４は、本実施形態に係る軌道レールの要部構成を説明するための縦断面図である。 The specific structure of the moving block main body 14 constituting the moving block 13, which is a moving member to which the present invention is applied, and the manufacturing method thereof have been described above with reference to FIGS. 3 to 11. Next, a specific configuration of the track rail 11, which is a track member to which the present invention is applied, and a manufacturing method thereof will be explained using FIGS. 12 to 14. Here, FIG. 12 is an external perspective view showing the track rail according to this embodiment. FIG. 13 is a diagram for explaining the method of manufacturing a track rail according to this embodiment. FIG. 14 is a longitudinal cross-sectional view for explaining the main part configuration of the track rail according to this embodiment.
　図１２および図１３を参照すれば明らかな通り、本発明を適用した軌道部材である軌道レール１１は、長手方向に貫通する貫通孔７２を有する管状の金属材料からなる外周部７１と、外周部７１が有する貫通孔７２を埋めるようにミネラルキャスティングによって充填された充填部８１と、を有して形成されている。 As is clear from FIGS. 12 and 13, the track rail 11, which is a track member to which the present invention is applied, has an outer peripheral part 71 made of a tubular metal material having a through hole 72 penetrating in the longitudinal direction, and an outer peripheral part 71 made of a tubular metal material. A filling portion 81 is filled with mineral casting so as to fill the through hole 72 of the hole 71 .
　図１および図２を用いて上述したように、本実施形態の軌道レール１１では、当該軌道レール１１をベースに取り付けるための固定穴であるボルト孔１１ｂが等間隔で形成されている。本発明の固定穴であるボルト孔１１ｂは、当該ボルト孔１１ｂの周囲を形成する金属材料からなる埋め子部材７３によって形成されている。ボルト孔１１ｂを形成する埋め子部材７３の断面形状が、図１３および図１４に示されている。 As described above using FIGS. 1 and 2, in the track rail 11 of this embodiment, bolt holes 11b, which are fixing holes for attaching the track rail 11 to the base, are formed at equal intervals. The bolt hole 11b, which is the fixing hole of the present invention, is formed by a filler member 73 made of a metal material and surrounding the bolt hole 11b. The cross-sectional shape of the filler member 73 forming the bolt hole 11b is shown in FIGS. 13 and 14.
　図１３に示すように、軌道レール１１の外周部７１には、上方側に埋め子部材７３を挿入するための上方開口部７１ａが形成されている。また、上方開口部７１ａの直下の位置には、上方側から挿入された埋め子部材７３を位置固定するための係合凹部７１ｂが形成されている。本実施形態では、上方開口部７１ａと係合凹部７１ｂは円形の開口孔として形成されている。一方、埋め子部材７３の下方側には、係合凹部７１ｂと係合する係合凸部７３ａが形成されている。そして、外周部７１に形成された係合凹部７１ｂと、埋め子部材７３に形成された係合凸部７３ａが係合することで、外周部７１が有する貫通孔７２に対して埋め子部材７３が位置決めされるように構成されている（図１３中の分図（ｂ）参照）。 As shown in FIG. 13, the outer peripheral portion 71 of the track rail 11 is formed with an upper opening 71a into which the insert member 73 is inserted. Further, an engagement recess 71b for positionally fixing the insert member 73 inserted from above is formed at a position directly below the upper opening 71a. In this embodiment, the upper opening 71a and the engagement recess 71b are formed as circular openings. On the other hand, an engagement protrusion 73a that engages with the engagement recess 71b is formed on the lower side of the insert member 73. Then, the engagement recess 71b formed in the outer peripheral part 71 and the engagement convex part 73a formed in the insert member 73 engage with each other, so that the insert member 73 engages with the through hole 72 that the outer peripheral part 71 has. (See part (b) in FIG. 13).
　そして、図１３中の分図（ｂ）で示す状態、すなわち、埋め子部材７３が、外周部７１が有する貫通孔７２の内部に位置決めされた状態から、当該埋め子部材７３の外面と貫通孔７２の内面との間の隙間を埋めるように充填部８１がミネラルキャスティングによって充填されることで、外周部７１に対する埋め子部材７３の位置決め固定が実施され、本実施形態の軌道レール１１が完成する。 Then, from the state shown in FIG. 13 (b), that is, the state in which the insert member 73 is positioned inside the through hole 72 of the outer peripheral portion 71, the outer surface of the insert member 73 and the through hole By filling the filling portion 81 with mineral casting so as to fill the gap with the inner surface of the filler member 72, the filler member 73 is positioned and fixed with respect to the outer peripheral portion 71, and the track rail 11 of this embodiment is completed. .
　上述のように、外周部７１と埋め子部材７３を上下両方の位置で接触させた仮固定の状態とし、その上でミネラルキャスティングを実施し、外周部７１が有する貫通孔７２の内部に埋め子部材７３を固定した状態で充填部８１が充填されることで、外周部７１と埋め子部材７３とのより強固な設置状態が実現されることとなる。 As described above, the outer peripheral part 71 and the insert member 73 are temporarily fixed in contact with each other at both the upper and lower positions, and then mineral casting is performed to insert the insert into the through hole 72 that the outer peripheral part 71 has. By filling the filling portion 81 with the member 73 fixed, a stronger installation state between the outer peripheral portion 71 and the filler member 73 is realized.
　また、本実施形態の軌道レール１１では、外周部７１と埋め子部材７３を上下両方の位置で接触させた状態でミネラルキャスティングが実施されるので、ミネラルキャスティングによって充填される充填部８１への負荷が小さくなり、充填部８１での割れ等の発生を防ぐことができるとともに、従来品（中実で鋼製の軌道レール）と同等のトルクでのボルト孔１１ｂを利用したボルト締付が可能となる。 In addition, in the track rail 11 of this embodiment, mineral casting is performed with the outer peripheral part 71 and the filler member 73 in contact with each other at both the upper and lower positions, so that the load on the filling part 81 filled by mineral casting is reduced. This makes it possible to prevent the occurrence of cracks, etc. in the filled part 81, and it is also possible to tighten bolts using the bolt holes 11b with the same torque as conventional products (solid steel track rails). Become.
　なお、図１２～図１４で示した本実施形態の軌道レール１１では、外周部７１に形成された係合凹部７１ｂと、埋め子部材７３に形成された係合凸部７３ａが円形形状をしていた。しかしながら、本発明の適用範囲は円形形状に限られるものではない。例えば、本発明の係合凹部と係合凸部が、多角形からなる凹凸係合形状を有することで、埋め子部材７３は外周部７１に対して軌道レール１１の長手方向に直交する鉛直方向を回転中心とした回転移動が不可能な形状とすることができる。かかる形状の採用によって、外周部７１と埋め子部材７３とのさらに強固な設置状態が実現できる。 In addition, in the track rail 11 of this embodiment shown in FIGS. 12 to 14, the engagement recess 71b formed in the outer peripheral portion 71 and the engagement protrusion 73a formed in the padding member 73 have a circular shape. was. However, the scope of application of the present invention is not limited to circular shapes. For example, since the engagement recess and the engagement protrusion of the present invention have a polygonal uneven engagement shape, the filler member 73 can be moved in the vertical direction perpendicular to the longitudinal direction of the track rail 11 with respect to the outer circumference 71. The shape can be such that rotational movement around the rotation center is impossible. By adopting such a shape, the outer peripheral portion 71 and the insert member 73 can be more firmly installed.
　また、図１２～図１４で示した本実施形態の軌道レール１１では、外周部７１の底面に係合凹部７１ｂを形成し、埋め子部材７３の下方側に対して係合凹部７１ｂと係合する係合凸部７３ａを形成する構成を採用したが、本発明の係合凹部と係合凸部の設置関係は逆でもよく、外周部７１の底面に係合凸部を形成し、埋め子部材７３の下方側に係合凹部を形成してもよい。 In addition, in the track rail 11 of this embodiment shown in FIGS. 12 to 14, an engagement recess 71b is formed on the bottom surface of the outer peripheral portion 71, and the engagement recess 71b is engaged with the lower side of the embedding member 73. Although the configuration in which the engaging convex portion 73a is formed is adopted, the installation relationship of the engaging concave portion and the engaging convex portion of the present invention may be reversed, and the engaging convex portion is formed on the bottom surface of the outer peripheral portion 71 and An engagement recess may be formed on the lower side of the member 73.
　さらに、図１２～図１４で示した本実施形態の軌道レール１１では、複数の埋め子部材７３をそれぞれ単独で外周部７１が有する貫通孔７２の内部に配置する構成を示したが、例えば上述した移動ブロック本体部１４のように、複数の埋め子部材７３を連結する埋め子連結部５４，５５と同様の部材を設置することとしてもよい。埋め子連結部５４，５５と同様の部材を設置することで、埋め子部材７３を強固に固定するアンカー効果を発揮させることができる。 Further, in the track rail 11 of the present embodiment shown in FIGS. 12 to 14, a configuration is shown in which a plurality of insert members 73 are individually arranged inside the through holes 72 of the outer circumferential portion 71. Like the movable block main body section 14 shown in FIG. By installing members similar to the implant connecting parts 54 and 55, an anchor effect for firmly fixing the implant member 73 can be exerted.
　以上説明した本実施形態の軌道レール１１によれば、ミネラルキャスティングによる充填部８１の充填前に、外周部７１の貫通孔７２の内部に対して予め金属部品を位置決めして配置しておくので、充填後に取付用のねじ穴加工等の後加工が不要となり、製造コストの面でも好ましい。 According to the track rail 11 of the present embodiment described above, the metal parts are positioned and placed in advance inside the through holes 72 of the outer peripheral part 71 before filling the filling part 81 with mineral casting. After filling, there is no need for post-processing such as drilling screw holes for mounting, which is advantageous in terms of manufacturing costs.
　また、本実施形態の軌道レール１１によれば、外周部７１の貫通孔７２の内部にミネラルキャスティングによる充填部８１が詰まっているため、音の反響を防ぐとともに減衰性の向上を図ることも可能である。 Furthermore, according to the track rail 11 of this embodiment, the through holes 72 of the outer peripheral portion 71 are filled with the filling portion 81 made of mineral casting, so that it is possible to prevent sound echoes and improve damping performance. It is.
　以上、図１２～図１４を用いて、本発明を適用した軌道部材である軌道レール１１の具体的な構成と、その製造方法を説明した。次に、図１５～図２０を用いることで、上述した本実施形態の軌道レール１１について、発明者らが行った効果検証のためのシミュレーションと、その結果についての説明を行う。ここで、図１５は、本実施形態に係る軌道レールを採用したリニアガイドのＦＥＭ（Finite Element Method：有限要素法）解析モデルを示す図である。図１６～図２０は、図１５で示したＦＥＭ解析モデルに基づき実施したシミュレーションによって得られた理論剛性の結果を示すグラフ図であり、図１６は垂直剛性の計算結果を、図１７は水平剛性の計算結果を、図１８はローリング剛性の計算結果を、図１９はピッチング剛性の計算結果を、図２０はヨーイング剛性の計算結果を示している。 The specific configuration of the track rail 11, which is a track member to which the present invention is applied, and the manufacturing method thereof have been described above with reference to FIGS. 12 to 14. Next, by using FIGS. 15 to 20, a simulation performed by the inventors to verify the effect of the track rail 11 of the present embodiment described above and the results thereof will be explained. Here, FIG. 15 is a diagram showing an FEM (Finite Element Method) analysis model of a linear guide that employs the track rail according to the present embodiment. 16 to 20 are graphs showing the theoretical stiffness results obtained by simulations based on the FEM analysis model shown in FIG. 15. FIG. 16 shows the calculated results of vertical stiffness, and FIG. 17 shows the horizontal stiffness. 18 shows the calculation results of the rolling stiffness, FIG. 19 shows the calculation results of the pitching stiffness, and FIG. 20 shows the calculation results of the yawing stiffness.
　図１５に示すように、発明者らが行った効果検証のためのシミュレーションでは、移動ブロックの材質については全て共通の鋼とし、軌道レールについて４つの形態を設定した。図１５において、符号（ａ）～（ｃ）で示した３つのモデルは比較例についてのものであり、（ａ）のモデルは軌道レールの材質が鋼であって中実のもの、（ｂ）のモデルが厚肉中空品、（ｃ）のモデルが薄肉中空品とした。また、符号（ｄ）で示したモデルは本実施形態の軌道レール１１を想定したものであり、薄肉中空品にミネラルキャスティングを施したものとした。なお、ＦＥＭ解析の境界条件としては、（ｄ）のモデルの軌道レール１１において外周部７１が有する貫通孔７２の内壁と、ミネラルキャスティングによって充填された充填部８１とは全面で固着しているものと仮定し、変形の過程において剥がれ等を生じないものとした。また、軌道レール１１は底面を拘束しており、ボルト等の締結手段による締結状態は考慮しないこととした。以下の表１に、シミュレーションで使用した構成部品の物性値を示しておく。 As shown in FIG. 15, in the simulation conducted by the inventors to verify the effect, the moving blocks were all made of common steel, and four types of track rails were set. In Fig. 15, the three models indicated by symbols (a) to (c) are for comparative examples; model (a) is made of steel and is solid; model (b) is solid. The model (c) is a thick-walled hollow product, and the model (c) is a thin-walled hollow product. Moreover, the model indicated by the symbol (d) assumes the track rail 11 of this embodiment, and is a thin-walled hollow product subjected to mineral casting. In addition, as a boundary condition for the FEM analysis, in the track rail 11 of the model (d), the inner wall of the through hole 72 of the outer peripheral part 71 and the filling part 81 filled by mineral casting are completely fixed. It was assumed that no peeling would occur during the deformation process. In addition, the bottom surface of the track rail 11 is restrained, and the state of fastening by fastening means such as bolts is not considered. Table 1 below shows the physical property values of the components used in the simulation.
　図１５で示した４つのＦＥＭ解析モデルに基づき、５自由度（垂直・水平・ローリング・ピッチング・ヨーイング）の理論剛性を計算した。その結果を示す図１６～図２０を参照すると、（ｄ）のモデルである本実施形態の軌道レール１１が、従来から用いられている（ａ）の中実モデルに対して最も近い剛性を示すことを確認できた。また、本実施形態の軌道レール１１を示すモデル（ｄ）は、比較例とした他のモデル（ｂ），（ｃ）よりも高い剛性を示すことが確認できている。かかる結果は、総合的に評価して、（ａ）で示す標準品の中実モデルに対して７割以上の剛性を示しつつも、重量で６０％以上の軽量化を図ることができている。この結果から、本実施形態によれば、機械的な強度や剛性を維持しながらも、軽量化を実現した運動案内装置を提供可能であることが明らかとなった。 Based on the four FEM analysis models shown in Figure 15, the theoretical stiffness of five degrees of freedom (vertical, horizontal, rolling, pitching, and yawing) was calculated. Referring to FIGS. 16 to 20 showing the results, the track rail 11 of this embodiment, which is the model (d), exhibits the closest rigidity to the conventionally used solid model (a). I was able to confirm that. Furthermore, it has been confirmed that model (d) showing the track rail 11 of this embodiment exhibits higher rigidity than other models (b) and (c) as comparative examples. Comprehensive evaluation of these results shows that the rigidity is 70% or more compared to the standard solid model shown in (a), while the weight is 60% or more lighter. . From these results, it has become clear that according to the present embodiment, it is possible to provide a motion guide device that achieves weight reduction while maintaining mechanical strength and rigidity.
　以上、本発明の好適な実施形態について説明したが、本発明の技術的範囲は上記実施形態に記載の範囲には限定されない。上記実施形態には、多様な変更又は改良を加えることが可能である。 Although the preferred embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the scope described in the above embodiments. Various changes or improvements can be made to the above embodiments.
　例えば、上述した実施形態の外周部３１，７１については、ボール１２が負荷を受けた状態で転走する箇所、例えば、負荷転動体転走面１４ａや転動体転走面１１ａについては、高い硬度を得るための焼入れ加工を施すことが可能である。この場合、ミネラルキャスティングは常温硬化の材料であり、焼入れ後の製品でも内部に充填させることができるため、外周部３１，７１を通常と同工程で高周波焼入れした後に、充填部４１，８１を充填すればよい。かかる構成は、軽量複合材における従来からの課題であった焼入れによる軽量材の融解や隙間の発生を防ぐことができる点で好ましい。 For example, regarding the outer peripheral portions 31 and 71 of the above-described embodiment, the portions where the balls 12 roll under load, such as the loaded rolling element rolling surface 14a and the rolling element rolling surface 11a, have high hardness. It is possible to perform a quenching process to obtain . In this case, since mineral casting is a material that hardens at room temperature and can be filled inside the product even after quenching, the filling parts 41 and 81 are filled after the outer peripheral parts 31 and 71 are induction hardened in the same process as usual. do it. Such a configuration is preferable in that it can prevent melting of the lightweight material and generation of gaps due to quenching, which have been problems in the past in lightweight composite materials.
　また、上述した実施形態では、１本の埋め子連結部５４，５５が２つの埋め子部材４４，４５を連結した状態で充填部４１の内部に埋め込まれる構成が採用されていたが、かかる構成は、本発明の管部材である金属管部材４３に対しても適用可能である。例えば、２本の管部材と連結可能な管連結部を用意し、これらを連結して一体化する。その上で、一体に連結された複数の管部材および管連結部の外面と、貫通孔３２の内面との間の隙間を埋めるように充填部４１がミネラルキャスティングによって充填されることで、複数の管部材および管連結部が強固に位置決め固定できることとなる。 Further, in the embodiment described above, a configuration was adopted in which one implant connecting part 54, 55 is embedded inside the filling part 41 in a state where two implant members 44, 45 are connected. is also applicable to the metal tube member 43 which is the tube member of the present invention. For example, a pipe connecting portion that can be connected to two pipe members is prepared, and these are connected and integrated. Then, the filling part 41 is filled with mineral casting so as to fill the gap between the outer surface of the plurality of pipe members and the pipe connecting part connected together and the inner surface of the through hole 32. The tube member and the tube connection portion can be firmly positioned and fixed.
　また、上述した実施形態では、本発明の管部材が金属製の金属管部材４３として構成された場合の例を示したが、本発明の管部材の材質については、例えば、ＦＲＰ（Fiber Reinforced Plastics：繊維強化プラスチック）素材など、ミネラルキャスティングが可能なものであれば、あらゆる材質の管部材を採用することができる。 In addition, in the embodiment described above, an example was shown in which the pipe member of the present invention is configured as a metal pipe member 43, but the material of the pipe member of the present invention may be, for example, FRP (Fiber Reinforced Plastics). Pipe members can be made of any material that can be mineral cast, such as fiber-reinforced plastic.
　また、上述した実施形態の外周部３１，７１については、図１５で示したモデルのように薄肉中空品であることを想定していたが、従来の標準品である中実品と同等の焼入れが可能な板厚の鋼管を採用することで、従来の標準品と同一の動負荷容量を有するとともに軽量化を実現したものとすることができる。 In addition, the outer peripheral parts 31 and 71 of the above-described embodiment were assumed to be thin-walled hollow products as in the model shown in FIG. By adopting a steel pipe with a thickness that allows for this, it is possible to achieve the same dynamic load capacity as conventional standard products while also reducing weight.
　また、上述した実施形態では、本発明を適用可能な運動案内装置がリニアガイド１０の場合を例示して説明を行った。しかし、本発明の適用範囲はリニアガイド１０に限られるものではなく、スプライン装置やボールねじ装置などといった他の運動案内装置に対しても適用可能である。例えば、スプライン装置を構成するスプライン軸などに本発明を適用することで、従来の標準品に対して機械的な強度や剛性を維持しながらも、軽量化を実現した運動案内装置を提供可能となる。 Furthermore, in the embodiments described above, the case where the motion guide device to which the present invention is applicable is the linear guide 10 has been described as an example. However, the scope of application of the present invention is not limited to the linear guide 10, but is also applicable to other motion guide devices such as spline devices and ball screw devices. For example, by applying the present invention to a spline shaft that constitutes a spline device, it is possible to provide a motion guide device that is lighter in weight while maintaining mechanical strength and rigidity compared to conventional standard products. Become.
　また、本発明は、上述した実施形態のリニアガイド１０のように無限循環路を有するものに限られるものではなく、長手方向に転動体転走面が形成される軌道部材と、前記軌道部材の前記転動体転走面に対向する負荷転動体転走面を有する移動部材と、前記転動体転走面と前記負荷転動体転走面からなる負荷転動体転走路を備えることで、前記移動部材が前記軌道部材の長手方向に沿って相対的に往復運動自在なように前記複数の転動体を介して前記軌道部材に組み付けられて、複数の転動体が有限循環する形式のリニアガイド（運動案内装置）にも適応可能である。 Further, the present invention is not limited to a linear guide having an endless circulation path like the linear guide 10 of the above-described embodiment, but also includes a track member in which a rolling element rolling surface is formed in the longitudinal direction, and a track member in which a rolling element rolling surface is formed in the longitudinal direction. The moving member includes a moving member having a loaded rolling element rolling surface opposite to the rolling element rolling surface, and a loaded rolling element rolling path consisting of the rolling element rolling surface and the loaded rolling element rolling surface. A linear guide (motion guide) is assembled to the raceway member via the plurality of rolling elements so as to be able to freely reciprocate relatively along the longitudinal direction of the raceway member, and the plurality of rolling elements circulate finitely. It can also be applied to
　その様な変更又は改良を加えた形態も本発明の技術的範囲に含まれ得ることが、請求の範囲の記載から明らかである。 It is clear from the claims that forms with such changes or improvements may also be included within the technical scope of the present invention.
　１０　リニアガイド（運動案内装置）、１１　軌道レール（軌道部材）、１１ａ　転動体転走面、１１ｂ　ボルト孔（固定穴）、１２　ボール（転動体）、１３　移動ブロック（移動部材）、１４　移動ブロック本体部（移動部材）、１４ａ　負荷転動体転走面、１４ｂ　ボルト穴（固定穴）、１４ｃ　ネジ穴（固定穴）、１５　エンドシール、１７　蓋部材、２２　負荷転動体転走路、２３　転動体戻り通路、２５　方向転換路、２５ａ　外周側の路面、２５ｂ　内周側の路面、３１　外周部、３１ａ　開口孔、３２　貫通孔、４１　充填部、４３　金属管部材（管部材）、４４　埋め子部材、４４ａ　凸形状部、４５　埋め子部材、４５ａ　凸形状部、５４　埋め子連結部、５４ａ　連結孔、５５　埋め子連結部、５５ａ　連結孔、６１　固定治具、６１ａ　右上コーナー部、６１ｂ　位置決め用ネジ穴、６１ｃ　充填孔、６２　固定治具、６２ａ　左上コーナー部、６２ｂ　位置決め用ネジ穴、６３　取付棒、７１　外周部、７１ａ　上方開口部、７１ｂ　係合凹部、７２　貫通孔、７３　埋め子部材、７３ａ　係合凸部、８１　充填部。 10 linear guide (motion guide device), 11 track rail (track member), 11a rolling element rolling surface, 11b bolt hole (fixed hole), 12 ball (rolling element), 13 moving block (moving member), 14 moving block Main body (moving member), 14a Load rolling element raceway, 14b Bolt hole (fixed hole), 14c Screw hole (fixed hole), 15 End seal, 17 Cover member, 22 Load rolling element raceway, 23 Rolling element return Passageway, 25 direction change path, 25a outer circumference road surface, 25b inner circumference side road surface, 31 outer circumference, 31a opening hole, 32 through hole, 41 filling part, 43 metal pipe member (pipe member), 44 filler member, 44a Convex part, 45 Embedding member, 45a Convex part, 54 Embedding connection part, 54a Connection hole, 55 Embedding connection part, 55a Connection hole, 61 Fixing jig, 61a Upper right corner, 61b Positioning screw hole , 61c Filling hole, 62 Fixing jig, 62a Upper left corner, 62b Positioning screw hole, 63 Mounting rod, 71 Outer periphery, 71a Upper opening, 71b Engagement recess, 72 Through hole, 73 Filler member, 73a Matching convex part, 81 Filling part.

Claims (7)

  1. 　長手方向に転動体転走面が形成される軌道部材と、
    　前記軌道部材の前記転動体転走面に対向する負荷転動体転走面を有する移動部材と、
    　前記転動体転走面と前記負荷転動体転走面からなる負荷転動体転走路を転走する複数の転動体と、
    　を備えることで、前記移動部材が前記軌道部材の長手方向に沿って相対的に往復運動自在なように前記複数の転動体を介して前記軌道部材に組み付けられる運動案内装置であって、
    　前記軌道部材又は前記移動部材は、
    　前記軌道部材の長手方向又は前記移動部材の往復運動の方向に貫通する貫通孔を有する管状の金属材料からなる外周部と、
    　前記外周部が有する前記貫通孔を埋めるようにミネラルキャスティングによって充填された充填部と、
    　を少なくとも有して形成されることを特徴とする運動案内装置。     a raceway member in which a rolling element rolling surface is formed in the longitudinal direction;
    a moving member having a loaded rolling element rolling surface opposite to the rolling element rolling surface of the raceway member;
    a plurality of rolling elements rolling on a loaded rolling element rolling path consisting of the rolling element rolling surface and the loaded rolling element rolling surface;
    A motion guide device in which the movable member is assembled to the track member via the plurality of rolling elements so that the movable member can relatively reciprocate along the longitudinal direction of the track member,
    The track member or the moving member is
    an outer peripheral portion made of a tubular metal material having a through hole penetrating in the longitudinal direction of the track member or in the direction of reciprocating motion of the moving member;
    a filling part filled with mineral casting so as to fill the through hole of the outer peripheral part;
    A motion guide device characterized in that it is formed by having at least the following.
  2. 　請求項１に記載の運動案内装置であって、
    　前記移動部材は、さらに前記転動体転走面が延びる方向と平行に延びる転動体戻り通路と、前記負荷転動体転走面と前記転動体戻り通路とを接続する方向転換路と、を有し、
    　前記転動体戻り通路は、前記複数の転動体を無負荷の状態で循環させる管部材によって形成されており、
    　前記管部材は、前記外周部が有する前記貫通孔の内部に配置された状態で、当該管部材の外面と前記貫通孔の内面との間の隙間を埋めるように前記充填部がミネラルキャスティングによって充填されることで位置決め固定されていることを特徴とする運動案内装置。     The motion guide device according to claim 1,
    The moving member further includes a rolling element return path extending parallel to the direction in which the rolling element rolling surface extends, and a direction changing path connecting the loaded rolling element rolling surface and the rolling element return path. ,
    The rolling element return passage is formed by a pipe member that circulates the plurality of rolling elements in an unloaded state,
    The pipe member is placed inside the through hole of the outer peripheral portion, and the filling portion is filled with mineral casting so as to fill the gap between the outer surface of the pipe member and the inner surface of the through hole. A motion guide device characterized in that the motion guide device is fixed in position by being moved.
  3. 　請求項２に記載の運動案内装置であって、
    　前記移動部材には、前記管部材が複数配置されており、また、
    　複数の前記管部材のそれぞれを互いに連結する管連結部を備えた状態で、前記外周部が有する前記貫通孔の内部に配置され、
    　複数の前記管部材および前記管連結部の外面と、前記貫通孔の内面との間の隙間を埋めるように前記充填部がミネラルキャスティングによって充填されることで、複数の前記管部材および前記管連結部が位置決め固定されることを特徴とする運動案内装置。     The motion guide device according to claim 2,
    A plurality of the tube members are arranged in the moving member, and
    disposed inside the through hole of the outer circumferential portion, including a tube connecting portion that connects each of the plurality of tube members to each other;
    The filling part is filled with mineral casting so as to fill the gap between the outer surface of the plurality of pipe members and the pipe connection part and the inner surface of the through hole, so that the plurality of pipe members and the pipe connection part are filled with mineral casting. A motion guide device characterized in that a portion is positioned and fixed.
  4. 　請求項１に記載の運動案内装置であって、
    　前記軌道部材又は前記移動部材は、外部部材又は構成部品を固定接続するための固定穴を有しており、
    　前記固定穴は、当該固定穴の周囲を形成する金属材料からなる埋め子部材によって形成され、
    　前記埋め子部材が、前記外周部が有する前記貫通孔の内部に配置された状態で、当該埋め子部材の外面と前記貫通孔の内面との間の隙間を埋めるように前記充填部がミネラルキャスティングによって充填されることで位置決め固定されていることを特徴とする運動案内装置。     The motion guide device according to claim 1,
    The track member or the moving member has a fixing hole for fixedly connecting an external member or component,
    The fixing hole is formed by a filler member made of a metal material that forms a periphery of the fixing hole,
    With the filler member disposed inside the through hole of the outer circumferential portion, the filling portion is configured to perform mineral casting so as to fill the gap between the outer surface of the filler member and the inner surface of the through hole. A motion guide device characterized in that it is positioned and fixed by being filled with.
  5. 　請求項４に記載の運動案内装置であって、
    　前記軌道部材又は前記移動部材には、前記埋め子部材が複数配置されており、また、
    　複数の前記埋め子部材のそれぞれを互いに連結する埋め子連結部を備えた状態で、前記外周部が有する前記貫通孔の内部に配置され、
    　複数の前記埋め子部材および前記埋め子連結部の外面と、前記貫通孔の内面との間の隙間を埋めるように前記充填部がミネラルキャスティングによって充填されることで、複数の前記埋め子部材および前記埋め子連結部が位置決め固定されることを特徴とする運動案内装置。     The motion guide device according to claim 4,
    A plurality of the pad members are arranged on the track member or the moving member, and
    disposed inside the through hole of the outer circumferential portion, including a pad connecting portion that connects each of the plurality of pad members to each other;
    The filling part is filled with mineral casting so as to fill the gap between the outer surface of the plurality of filler members and the filler connecting part and the inner surface of the through hole, so that the plurality of filler members and the filler part are filled with mineral casting. A motion guide device characterized in that the insert connecting portion is positioned and fixed.
  6. 　請求項４に記載の運動案内装置であって、
    　前記埋め子部材と前記外周部には、いずれか一方に係合凹部が形成されるとともに、いずれか他方に係合凸部が形成されており、
    　前記係合凹部と前記係合凸部が係合することで、前記外周部が有する前記貫通孔に対して前記埋め子部材が位置決めされ、
    　前記埋め子部材が、前記外周部が有する前記貫通孔の内部に位置決めされた状態で、当該埋め子部材の外面と前記貫通孔の内面との間の隙間を埋めるように前記充填部がミネラルキャスティングによって充填されることで位置決め固定されることを特徴とする運動案内装置。     The motion guide device according to claim 4,
    An engaging recess is formed on one of the insert member and the outer peripheral portion, and an engaging convex portion is formed on the other,
    The engagement between the engagement recess and the engagement protrusion positions the filler member with respect to the through hole of the outer circumference,
    In a state where the filler member is positioned inside the through hole of the outer circumferential portion, the filling portion is configured to perform mineral casting so as to fill the gap between the outer surface of the filler member and the inner surface of the through hole. A motion guide device characterized in that it is positioned and fixed by being filled with.
  7. 　請求項６に記載の運動案内装置であって、
    　前記係合凹部と前記係合凸部が、多角形からなる凹凸係合形状を有することを特徴とする運動案内装置。     The motion guide device according to claim 6,
    A motion guide device, wherein the engagement recess and the engagement protrusion have a polygonal concave and convex engagement shape.
PCT/JP2023/010802 2022-04-11 2023-03-20 Motion guide device WO2023199700A1 (en)

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JP2022-065253 2022-04-11
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263724A (en) * 1984-06-12 1985-12-27 Nippon Seiko Kk Linear guide device
JPH09250541A (en) * 1996-01-11 1997-09-22 Thk Kk Linear motion guiding device with feed screw and its inner block forming method
JP2013040674A (en) * 2011-08-19 2013-02-28 Nippon Thompson Co Ltd Miniature linear motion guide unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263724A (en) * 1984-06-12 1985-12-27 Nippon Seiko Kk Linear guide device
JPH09250541A (en) * 1996-01-11 1997-09-22 Thk Kk Linear motion guiding device with feed screw and its inner block forming method
JP2013040674A (en) * 2011-08-19 2013-02-28 Nippon Thompson Co Ltd Miniature linear motion guide unit

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