JP3128876U - Linear guideway circulation system - Google Patents

Abstract

A linear guideway circulation device that can maintain the rigidity of a slider and is low in cost is provided.
Two upper modules (31) and a lower module (32) are fixed facing each other to form circular pipe portions and holding portions (316, 326), and one side of the circulation device (30) is connected. An arc-shaped direction changing portion 315 is formed inside the connection end, and the circular tube portion and both holding portions 316 and 326 are connected. The other side of the circulation device 30 is not connected, and the circular pipe portion at the non-connected end is inserted into the circulation holes 41, 42, 43, 44 of the slider 40, and at the same time, both holding portions 316, 326 are the slider grooves 45 of the slider 40. It is closely attached to the inner wall surface. A turning member 34 having a bay is combined between the circular pipe portion at the non-connection end and the holding portions 316 and 326, side covers 60 and 70 are fixed on both sides of the slider 40, and the roller module 33 circulates. A rotating passage is formed.
[Selection] Figure 1

Description

  The present invention relates to a circulating device for a linear guideway, in particular, it is not necessary to reduce the thickness of both sides of the slider, can maintain the existing rigidity, and only needs to be combined with existing circulation holes and end covers when installing the circulating device, The present invention relates to a circulation device that does not require extra cost.

The circulation system 3, 3 'according to the prior art of Patent Document 1 is composed of two opposed J-shaped circulation pipes, and the two opposed J-shaped circulation pipes are independent and form a sealed circulation path through which a roller is provided. Although 8 circulates, this design has the following disadvantages:
1 It is necessary to reduce the wall thickness on both sides of the slider and insert the circulation system, and the rigidity of the slider is not excellent.
2 It is necessary to install the protection devices 4 and 5 to prevent the circulation system from being exposed to the outside and being damaged by an external force, which increases costs.
3 Since the circulation system is fixed by the screw fixing member 6, labor and cost at the time of assembly increase.

In view of the shortcomings of linear guideway sliders in the prior art described above, the inventor of the present invention finally devised the present invention through years of experience, unremitting research and improvement.
U.S. Pat. No. 4,672,763

  The main purpose of the present invention is to retain the rigidity of the slider without changing the existing structure of the slider by restricting and fixing the circulation device to the existing multiple circulation holes and two end covers of the linear guideway. Another object of the present invention is to provide a linear guideway circulation device that does not increase the cost of assembly.

  In order to solve the above-described problems, the circulation device of the present invention includes a circular pipe portion having the same length as the axial direction of the slider and two holding portions having a predetermined distance facing each other obliquely. There is a gap between the circular pipe portion and the holding portions. One end of the circular pipe part and both holding parts are connected, and the other end is not connected. An arc-shaped direction changing portion is provided inside the connection end, and the passage between the passage in the circular pipe portion and the two holding portions is connected. A turning member having a bay is combined between the circular pipe portion at the non-connection end and the two holding portions. The turning member bay connects a passage between the circular pipe portion at the non-connection end and both holding portions. A circuit in which a roller module including a plurality of spherical rollers or columnar rollers reciprocally rotates is constituted by a passage in the circular tube portion, a direction changing portion inside the connection end, a passage between both holding portions, and a turning member at the non-connection end. A circular pipe portion at the non-connection end of the circulation device is inserted into a circulation hole provided in advance on the slider, and at the same time, both holding portions are brought into close contact with the inner wall surface of the slider groove. End covers are fixed on both sides of the slider, and the turning members of the non-continuous ends of the circular pipe part and the holding parts are fitted and installed in advance on the corresponding end covers, and arc-shaped at positions corresponding to the turning members of the end cover. A recessed direction changing portion is formed, and a recessed storage tank is formed at a position corresponding to the connection end of the circulation device. An equal number of circulation devices are provided on both sides of the slider. The circulation device is fixed with two upper modules and a lower module facing each other in the vertical direction. The upper module includes a semicircular tube portion and a holding portion, with a gap between them, one end connected, and the other end not connected. The lower module includes a semicircular tube portion and a holding portion, and there is a gap between them. One end is connected and the other end is not connected. The semicircular tube portions of the upper module and the lower module are joined face to face to form a complete circular tube portion. The two holding portions of the upper module and the lower module face each other vertically and have a predetermined distance. The passage of the circular tube portion can be designed to be circular and the spherical roller can be rotated therein, or it can be designed to be rectangular and the columnar roller can be rotated therein.

  The circulation device includes a circular pipe part and two holding parts that face each other diagonally and have a predetermined distance, and there is a gap between the circular pipe part and the two holding parts. One end of the circular pipe part and both holding parts are connected, and the other end is not connected. An arc-shaped direction change part is provided in the connection end, the passage between the circular pipe part and both holding parts is connected, and the non-connection end can be combined with a turning member having a bayway. And a passage between the two holding portions. Depending on the design of the non-connected end of the circulation device and the combination between the circulation device and the slider, each circular pipe part of the plurality of circulation devices is inserted into the plurality of circular circulation holes already provided in the slider, and at the same time both holding parts The circulation device can be installed simply by attaching the to the inner wall surface of the slider groove and fixing the end covers on both sides of the slider. The circular pipe part, direction changing part, both holding parts, and the turning member constitute a path through which the roller module reciprocates, and the spherical roller or columnar roller on the roller module between the two holding parts of the circulation device contacts the slider and rail. The slider can be smoothly reciprocated on the rail. With the above-described design, it is not necessary to reduce the thickness on both sides of the slider, the existing rigidity can be maintained, and the installation of the circulation device is only combined with the existing circulation hole and the end cover, so there is no extra cost.

  Embodiments showing the objects, features, and effects of the present invention will be described in detail with reference to the drawings. However, the present embodiment is for explanation, and the embodiment is not limited to this. All improvements based on the technical features of the present invention are included in the present invention.

  As shown in FIGS. 1, 2, and 3, the circulation device 30 according to the first embodiment of the present invention includes members such as an upper module 31, a lower module 32, a roller module 33, and a turning member 34.

  The upper module 31 includes a downward-facing semicircular tube portion 311 and a holding portion 316. One end of the semicircular tube portion 311 and the holding portion 316 is connected, and the other end is not connected. A gap 310 is provided between them, and a semicircular pipe line 312 is formed in the semicircular pipe part 311, and the pipe line 312 extends to a connection part between the semicircular pipe part 311 and the holding part 316, and has an arc shape. The direction changing portion 315 is formed. A concave groove 313 extending along the pipe path 312 is provided on the inner upper surface of the semicircular pipe portion 311, and a recessed fitting groove 314 and a vertically extending through portion are connected to a connection portion between the semicircular pipe portion 311 and the holding portion 316. An oil passage 319 is provided. The holding portion 316 has a long and narrow shape equal to the length of the semicircular tube portion 311, and an arc surface 317 and a concave groove 318 extending at both ends are provided on the bottom surface.

  The lower module 32 includes an upward semicircular tube portion 321 and a holding portion 326. One end of the semicircular tube portion 321 and the holding portion 326 is connected, and the other end is not connected. A gap 320 is provided between them, a semicircular pipe 322 is formed in the semicircular pipe 321, and the pipe 322 extends to a connection portion between the semicircular pipe 321 and the holding part 326, and has an arc shape. The direction changing portion 325 is formed. A concave groove 323 extending along the pipe line 322 is provided on the bottom surface of the semicircular pipe portion 321, and a fitting groove (not shown) recessed on the bottom surface of the connection portion between the semicircular pipe portion 321 and the holding portion 326. ) And an oil passage 329 penetrating vertically. The holding portion 326 has a long and thin shape having a length equal to that of the semicircular tube portion 321, and an arc surface 327 and a step edge 328 extending at both ends are provided on the upper end surface thereof.

  The semicircular tube portions 311 and 321 and the holding portions 316 and 326 of the upper module 31 and the lower module 32 have the same length, and the concave grooves 313 and 323 of the two semicircular tube portions 311 and 321 face each other, When the circular pipe portions 311 and 321 are combined, a complete circular pipe portion is formed, and a circular passage A is formed therein. The two holding portions 316 and 326 face each other in an up and down direction, and a passage B is provided therebetween. The two direction change portions 315 and 325 constitute a complete circular passage C. The passages A, B, and C communicate with each other, and the concave groove 318 of the holding portion 316 faces the step edge 328 of the holding portion 326. Convex columns 324 and concave grooves (not shown) that closely fit each other are provided on the opposing surfaces of the upper module 31 and the lower module 32, so that the upper module 31 and the lower module 32 can be fixed. A roller module 33 can be installed in the passages A, B, and C.

  The turning member 34 has a semicircular shape, a concave arc-shaped bay 341 is formed between the upper end and the lower end, and an oil passage 344 penetrating vertically is provided on the other side of the bay 341. Fitting protrusions 342 and 343 are provided on different sides of the oil passage 344 on the upper and lower end surfaces of the turning member 34, respectively.

  The roller module 33 includes a holding chain 331 having flexibility. When a plurality of spherical rollers 334 are fitted in a receiving tank (not shown) of the holding chain 331 and each spherical roller 334 is rubbed, the receiving tank The entire roller module 33 can be rotated. Convex edges 332 and 333 are respectively provided at the upper and lower ends of the holding chain 331, and the both convex edges 332 and 333 are formed in the concave grooves 313 and 323 facing both the upper and lower sides of the semicircular pipe portions 311 and 321 and the holding portions 316 and 326. It is inserted into the concave groove 318 and the step edge 328 facing each other, and can move.

  As shown in FIG. 4, in the circulation device 30 of the present invention, the circular pipe part is inserted and installed in the circulation hole 41 of the slider 40, and at the same time, the two holding parts 316 and 326 are in close contact with the inner wall surface of the slider groove 45. . The circular pipe portion of another circulation device 30 is inserted into the other circulation hole 42 located below the circulation hole 41 from the other side of the slider 40. The circulation device 30 is inserted into both the circulation holes 43 and 44 on the other side of the slider 40 from different sides, and at the same time, both the holding portions 316 and 326 are brought into close contact with the inner wall surface of the slider groove 45.

  As shown in FIG. 5, the fitting protrusions 342 and 343 at the upper and lower ends of the plurality of turning members 34 corresponding to the non-connected ends of the circulation devices 30 are respectively fitted with the corresponding fitting grooves 72 on the end covers 60 and 70. 76 and the fitting groove 314 at the upper end or the lower end of the connection end of the circulation device 30 corresponding to the upper and lower sides. Recessed storage tanks 73 and 74 (the storage tank of the end cover 60 is not shown, and the position thereof is the storage tank 73 of the end cover 70) at positions corresponding to the connection ends of the circulation devices 30 of the end covers 60 and 70. , 74), and the connection end of each circulation device 30 is fitted therein, and the end of the circulation device 30 is fixed. At the positions corresponding to the turning members 34 of both end covers 60, 70, the direction changing portions 71, 75 recessed in an arc shape (the direction changing portions of the end cover 60 are not shown, and the positions thereof are The direction change parts 71 and 75 are provided), and a complete rotation passage is formed with the bay 341 of each turning member 34 to form a rotation passage of the roller module 33.

  As shown in FIG. 6, since both the end covers 60 and 70 are screwed and fixed to both sides of the slider 40, the circulation device 30 of the present invention fixes the circulation device 30 without adding other members. Due to the structural design of the respective circulation holes 41, 42, 43, 44 of the slider 40 in which the circular pipe part of the circulation device 30 is inserted and installed, the installation of the respective circulation holes 41, 42, 43, 44 affects the rigidity of the slider 40. Never give.

  As shown in FIG. 7, between the inner wall surface of the slider groove 45 of the slider 40 and the rail 50, a passage B composed of four sets of two holding portions 316 and 326 is provided, and each spherical shape in the passage B is provided. The roller 334 frictionally rotates with the arc-shaped groove 46 on the inner wall surface of the slider groove 45 and the corresponding arc-shaped groove 51 of the rail 50, so that the slider 40 can smoothly reciprocate on the rail 50.

  As shown in FIG. 8, when the height of both sides of the slider 40 is increased, and one or more circulation holes are provided to add a plurality of circulation devices 30, the slider 40 is slidably moved on the rail 50. Can increase the sex.

  9 and 10 show a circulation device 10 according to a second embodiment of the present invention, which includes members such as an upper module 11, a lower module 12, a roller module 13, and a turning member 14 as in the first embodiment.

  The upper module 11 includes a downward-facing semicircular pipe part 111 and a holding part 112, and one ends of the semicircular pipe part 111 and the holding part 112 are connected, and the other end is not connected. A gap is provided between them, a rectangular pipe 113 is formed in the semicircular pipe part 111, the pipe 113 extends to the connection part between the semicircular pipe part 111 and the holding part 112, and the direction changing part is It is formed. A concave groove 114 extending along the pipe path 113 is provided on the inner upper surface of the semicircular pipe portion 111. The holding part 112 has a long and thin shape having a length equal to that of the semicircular pipe part 111, and a flat surface 115 and a step edge 116 extending at both ends are provided on the bottom surface.

  The lower module 12 includes an upward semicircular pipe part 121 and a holding part 122, and one end of the semicircular pipe part 121 and the holding part 122 is connected, and the other end is not connected. A gap is provided between them, and a rectangular pipe 123 is formed in the semicircular pipe part 121. The pipe 123 extends to a connection part between the semicircular pipe part 121 and the holding part 122, and the direction changing part is formed. It is formed. A concave groove 124 extending along the pipe path 123 is provided on the bottom surface of the semicircular pipe portion 121, and the holding portion 122 has a long and narrow shape having the same length as that of the semicircular pipe portion 121, and the upper end surface has both ends A flat surface 125 and a concave groove 126 are provided.

  The semicircular pipe portions 111 and 121 and the holding portions 112 and 122 of the upper module 11 and the lower module 12 are equal in length, and the concave grooves 114 and 124 of the two semicircular pipe portions 111 and 121 face each other, and the two semicircular pipe portions 111 and 121 face each other. When the circular pipe portions 111 and 121 are combined, a complete circular pipe portion is formed, and a rectangular passage D is formed therein. The two holding parts 112 and 122 face each other in an up-down direction, and a passage E is provided therebetween. The two turning portions of the upper module 11 and the lower module 12 constitute a complete rectangular passage F. The passages D, E, and F communicate with each other, and the concave groove 126 of the holding portion 122 faces the step edge 116 of the holding portion 112. Convex columns and concave grooves (not shown) that closely fit each other are provided on the opposing surfaces of the upper module 11 and the lower module 12 so that the upper module 11 and the lower module 12 can be fixed. A roller module 13 can be installed in the passages D, E, and F.

  The turning member 14 has a semicircular shape, and a concave arcuate bay 141 is formed between the upper end and the lower end.

  The roller module 13 includes a holding chain 131 having flexibility, and a plurality of columnar rollers 134 are fitted in a receiving tank (not shown) of the holding chain 131, and when each columnar roller 134 is rubbed, the receiving tank The entire roller module 13 can be rotated. Convex edges 132 and 133 are provided at both ends of the holding chain 131 in the axial direction, and both convex edges 132 and 133 are recessed grooves 114 and 124 facing the upper and lower sides of the semicircular pipe portions 111 and 121, and both holding portions 112, 122 is inserted into the opposite step edge 116 and the recessed groove 126 and can move.

  As shown in FIG. 11, the assembly method of the circulation device 10, the slider 40, and the two end covers 60, 70 according to this embodiment is the same as that of the circulation device 30 of the first embodiment. The difference is that when each circulation device 10 of this embodiment and the slider 40 are joined, they are joined obliquely, and the columnar roller 134 of each circulation device 10 contacts the rail 50 obliquely, and the two ends. The storage tank in which the connection ends of the circulation devices 10 of the covers 60 and 70 are inserted and installed is also oblique, and the direction changing portions that are recessed in an arc shape corresponding to the turning members 14 of the end covers 60 and 70 are also oblique. It is.

  As can be seen from the above description, the present invention has practicality and inventive step, and as a result of investigation by the inventor of the present invention, there is no technology that is the same or similar in domestic and foreign literature.

1 is an exploded view showing a circulation device according to a first embodiment of the present invention. It is a perspective view which shows the state which assembled the part of the circulation apparatus by 1st Example of this invention. It is a perspective view which shows the state after the assembly of the circulation apparatus by 1st Example of this invention. It is a three-dimensional exploded view showing a state before installing the first embodiment of the present invention on the slider. It is a three-dimensional exploded view showing a state before the first embodiment of the present invention and the end cover are assembled. It is a perspective view which shows the state which uses the 1st Example of this invention combining with a slider and a rail. FIG. 7 is a cross-sectional view taken along line AA in FIG. 6. FIG. 8 is a cross-sectional view illustrating another embodiment related to FIG. 7. It is a perspective view which shows the 2nd Example of this invention. It is sectional drawing which shows the 2nd Example of this invention. It is sectional drawing which shows the state which uses the 2nd Example of this invention combining a slider and a rail.

Explanation of symbols

10, 30 Circulator 11, 31 Upper module 111, 121, 311, 321 Semicircular pipe part 112, 122, 316, 326 Holding part 113, 123, 312, 322 Pipe line 114, 124, 126, 313, 318, 323 Concave groove 115, 125 Plane 116, 328 Step edge 12, 32 Lower module 13, 33 Roller module 131, 331 Holding chain 132, 133, 332, 333 Convex edge 134 Columnar roller 310, 320 Clearance 314, 72, 76 Fitting groove 315, 325, 71, 75 Direction changing portion 317, 327 Arc surface 319, 329, 344 Oil passage 324 Convex column 334 Spherical roller 34 Turning member 341 Gulf 342, 343 Fitting protrusion 40 Slider 45 Slider groove 46, 51 yen Arc-shaped groove 50 Rails 41, 42, 43, 44 Flow holes 60, 70 Ndokaba 73 and 74 storage tank A, B, C, D, E passage

Claims (5)

  A circular pipe part and two holding parts having a predetermined distance facing each other diagonally, there is a gap between the circular pipe part and both holding parts, and one end of the circular pipe part and both holding parts is connected The other end is not connected, a direction changing portion is provided inside the connection end, the passage in the circular tube portion and the passage in both holding portions are connected, and the non-connected end of the circular tube portion and both holding portions A turning member having a recessed bay is combined, and the passage between the non-connected end of the circular pipe part and both holding parts is connected by the bay of the turning member, and the passage in the circular pipe part The linear guideway circulation device is characterized in that a circuit in which the roller module reciprocally rotates is constituted by the direction changing portion inside the connecting end, the passage between both holding portions, and the bay of the turning member.   The circular pipe portion at the non-connection end is inserted into a circulation hole of a portal-type slider, and the slider includes slider grooves that penetrate both ends, and both sides of the slider are circulation holes that penetrate one or a plurality of both ends. When the circular pipe part of each circulation device is inserted into the circulation hole, the both holding parts are simultaneously brought into close contact with the inner wall surface of the slider groove of the slider, and end covers are fixed on both sides of the slider, Each turning member provided at the non-connected end of the pipe part and both holding parts is installed on a corresponding end cover, and a recessed direction changing part is formed at a position corresponding to each turning member of the end cover, The linear guideway circulation device according to claim 1, wherein a recessed storage tank is formed at a position corresponding to the connection end of the circulation device.   In the circulation device, the upper module and the lower module are fixed to face each other, the upper module includes a semicircular tube portion and a holding portion, and there is a gap between them, one end is connected, and the other end is not connected. The lower module includes a semicircular tube portion and a holding portion, and there is a gap between them, one end is connected, the other end is not connected, and the semicircular tube portions of the upper module and the lower module are joined to face each other. 2. The linear guideway circulation device according to claim 1, wherein a complete circular pipe portion is formed, and the two holding portions of the upper module and the lower module face each other in a diagonal direction and have a predetermined distance.   The roller module includes a holding chain having flexibility, and a plurality of spherical rollers are fitted and installed in a storage tank of the holding chain, and the spherical roller rotates in the storage tank. The linear guideway circulation device described.   2. The roller module includes a holding chain having flexibility, a plurality of columnar rollers are fitted and installed in a storage tank of the holding chain, and the columnar roller rotates in the storage tank. The linear guideway circulation device described.

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