JP2007271066A - Sliding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding device easy to machine with no accuracy deterioration, compact, and extremely superior in practicability. <P>SOLUTION: The sliding device comprises a first shaft body 1a extending to a first direction, a second shaft body 1b extending to a second direction intersecting the first direction, and a sliding part connecting the back face of a first sliding body 5a slidably fitted to the first shaft body 1a to the back face of a second sliding body 5b slidably fitted to the second shaft body 1b. On the back face sides of the first sliding body 5a and the second sliding body 5b, mounting reference faces 8a, 8b are provided respectively, on which reference faces 7b, 7a of the second sliding body 5b and the first sliding body 5a abut. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sliding device.

  As a conventional sliding device, a first shaft 41 extending in the first direction as shown in FIG. 1, a second shaft 42 extending in a second direction orthogonal to the first shaft 41, and the first shaft 41 A first sliding body 43 (commercially available general uniaxial sliding body) that is fitted in the cross-sectional view and a second sliding body 44 that is fitted in the second shaft 42 and is substantially U-shaped in cross-section. There is a biaxial sliding device comprising a sliding portion 45 formed by laminating (same shape as the first sliding body) via a table 49. In FIG. 1, reference numeral 46 is a load path that constitutes a circulation path through which rolling elements (not shown) circulate, 47 is a no-load path that likewise constitutes a circulation path, and 48 is for supplying oil to the rolling elements. An oil supply unit.

  However, the conventional biaxial sliding device described above connects the first sliding body 43 and the second sliding body 44 via the table 49 as shown in FIG. Therefore, there is a limit to downsizing.

  Therefore, a shape that can be slid from one steel ingot to the first shaft and the second shaft (a shape in which the first sliding body and the second sliding body are assembled with their directions changed by 90 degrees) is cut out. A configuration that eliminates the need for the table is also conceivable. In this case, however, machining is troublesome, and the cost is very high as compared with a configuration in which the commercially available uniaxial sliding body is combined.

  Up to now, as described above, there is no configuration that can achieve both cost reduction and compactness in the conventional biaxial sliding device, and such a sliding device is required.

  The present invention has been made in view of the above-described requirements, and provides a sliding device that is simple and easy to process but does not deteriorate in accuracy, and that is compact and extremely excellent in practicality.

  The gist of the present invention will be described with reference to the accompanying drawings.

  The first shaft 1a extending in the first direction, the second shaft 1b extending in the second direction intersecting the first direction, and the first shaft between the first shaft 1a and the second shaft 1b. And a sliding portion 3 provided so as to slide relative to the body 1a and the second shaft body 1b. Between the first shaft body 1a and the second shaft body 1b and the sliding portion 3, respectively. A load device 4 is provided, and a plurality of rolling elements are provided in the load channel 4, and the rolling device is configured to roll and move along the load channel 4. The part 3 includes a first sliding body 5a slidably fitted to the first shaft body 1a and a second sliding body 5b slidably fitted to the second shaft body 1b. The back surfaces of the first slide body 5a and the second slide body 5b are provided on the back surfaces of the second slide body 5b and the first slide body 5a, respectively. It relates to a sliding device, characterized in that the mounting reference surface 8a · 8b which reference surface 7b · 7a abuts is provided.

  2. The sliding device according to claim 1, wherein the first sliding body 5a and the second sliding body 5b are fitted with bases 9a and 9b and the first sliding body 5a or the second sliding body 5b. The base shafts 9a and 9b on the side of the first shaft body 1a or the second shaft body 1b are suspended from the left and right end portions of the abdominal surface and attached to the side surfaces of the first shaft body 1a or the second shaft body 1b. The left and right sleeve portions 10a and 10b and the front and rear standing portions 12a and 12b, 13a and 13b, which are erected on the front and rear end portions of the base portions 9a and 9b. The mounting reference surfaces 8a and 8b are formed on 12a and 12b, respectively.

  3. The sliding device according to claim 2, wherein one side surface of the bases 9a and 9b of the first sliding body 5a and the second sliding body 5b is an attachment reference for the second sliding body 5b and the first sliding body 5a. The present invention relates to a sliding device characterized in that it is set to reference surfaces 7a and 7b that come into contact with the surfaces 8b and 8a.

  Further, in the sliding device according to any one of claims 2 and 3, the other upright portions 13a and 13b facing the upright portions 12a and 12b on which the mounting reference surfaces 8a and 8b are formed are provided. Is provided with pressing mechanisms 14a and 14b for pressing the reference surfaces 7a and 7b of the first sliding body 5a or the second sliding body 5b on the mounting reference surfaces 8a and 8b. It is related to.

  The sliding device according to any one of claims 2 to 4, wherein one of the first sliding body 5a and the second sliding body 5b is provided with a screw provided on the other base 9b. An insertion hole 20 through which the screw portion 18 of the screw body 17 to be screwed into the hole 15 can be inserted and the head portion 19 of the screw body 17 cannot be inserted is provided, and the screw portion 18 through which the insertion hole 20 is inserted and the other The first sliding body 5a and the second sliding body 5b are connected by screwing with the screw hole 15 of the base portion 9b.

  The sliding device according to any one of claims 1 to 5, wherein the first shaft body 1a and the second shaft body 1b extend in directions orthogonal to each other. It concerns the device.

  The sliding device according to any one of claims 1 to 6, wherein the first sliding body 5a and the second sliding body 5b have the same shape. Is.

  Since the present invention is configured as described above, for example, a commercially available uniaxial sliding body can be combined with high accuracy without using a table, the accuracy is not deteriorated while the processing is simple, and it is extremely compact. A sliding device with excellent practicality.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  Since the back surfaces are connected in a state where the reference surfaces 7a and 7b of the first sliding body 5a and the second sliding body 5b are in contact with the other mounting reference surfaces 8a and 8b, respectively, it is of course possible to obtain high accuracy. The height (combination height) is not increased as compared with the conventional configuration of connecting via a table, and the size can be reduced accordingly.

  Further, for example, since the first sliding body 5a and the second sliding body 5b having substantially the same shape for one axis can be manufactured by changing their directions and connecting the back surfaces to each other, the sliding body for two axes from one steel ingot. Compared to the case of cutting out, it becomes possible to manufacture very simply and at low cost.

  Specific embodiments of the present invention will be described with reference to FIGS.

  In the present embodiment, the first shaft body 1a extending in the first direction, the second shaft body 1b extending in the second direction intersecting the first direction, and between the first shaft body 1a and the second shaft body 1b. The first shaft body 1a and the second shaft body 1b and the sliding portion 3 are provided with a sliding portion 3 provided to slide relative to the first shaft body 1a and the second shaft body 1b. Each of the load paths 4 is provided with a plurality of rolling elements, and a plurality of rolling elements are disposed on the load path 4, and the rolling elements are configured to roll and move along the load path 4. The sliding portion 3 is slidably fitted to the first sliding body 5a and the second shaft 1b that are slidably fitted to the first shaft 1a. The back surfaces of the two slide bodies 5b are connected to each other, and the back surfaces of the first slide body 5a and the second slide body 5b are respectively connected to the second slide body 5b and the first slide body. Reference surface 7b · 7a provided on 5a is one in which the mounting reference surface 8a · 8b is provided which abuts.

  Each part will be specifically described.

  As the first shaft body 1a and the second shaft body 1b, metal rails having a substantially H-shaped cross-sectional view are employed. The first shaft body 1a and the second shaft body 1b are provided at predetermined intervals in the vertical direction in FIG. 2, and the extending directions are set to directions different by 90 degrees.

  Between the first shaft body 1a and the second shaft body 1b, the first shaft body 1a and the second shaft body 1b are slidably fitted to the first shaft body 1a. The sliding part 3 which consists of the metal 2nd sliding body 5b fitted so that it is possible is provided.

  Therefore, in the present embodiment, when the first shaft body 1a is fixed, the sliding portion 3 slides on the first shaft body 1a in the first direction, and the second shaft body 1b on the sliding portion 3 is fixed. Slides in the second direction with respect to the sliding portion 3.

  In the present embodiment, the same shape is adopted as the first sliding body 5 and the second sliding body 6. Therefore, processing and the like can be performed at a lower cost.

  As shown in FIGS. 3 and 4, the first sliding body 5a and the second sliding body 5b are covered with the base portions 9a and 9b having a substantially rectangular shape in cross section and the first sliding body 5a or the second sliding body 5b. The side surface of the first shaft body 1a or the second shaft body 1b is suspended from the left and right end portions of the base portions 9a and 9b on the side of the first shaft body 1a or the second shaft body 1b to be fitted. Left and right sleeves 10a and 10b, and front and rear standing parts 12a, 12b, 13a and 13b, which are erected on the front and rear ends of the bases 9a and 9b. The mounting reference surfaces 8a and 8b are formed on the installation portions 12a and 12b. The load path 4 is provided between the inner side surfaces of the sleeve portions 10a and 10b of the first sliding body 5a and the second sliding body 5b and the side surfaces of the first shaft body 1a or the second shaft body 1b. .

  In this embodiment, a ball (not shown) is adopted as the rolling element, and the first sliding body 5a and the second sliding body 5b include a load path 4 through which the ball circulates and no-load paths 6a and 6b. An infinite circuit consisting of is formed. The load path 4 includes semi-arc-shaped first load grooves 25a and 25b formed on the inner side surfaces of the sleeve portions 10a and 10b, and half formed on the side surfaces of the first shaft body 1a and the second shaft body 1b. It is composed of arc-shaped second load grooves 26a and 26b. The no-load paths 6a and 6b are circular holes in a cross-sectional view formed in the first sliding body 5a and the second sliding body 5b.

  In addition, return caps 23a and 23b made of synthetic resin are provided at both front and rear ends of the first sliding body 5a and the second sliding body 5b. The return caps 23a and 23b are connected to the load path 4 and the like. A return path (not shown) that connects the load paths 6a and 6b is formed. In the figure, reference numerals 24a and 24b are oil supply portions for supplying oil to the infinite circulation path, 30a and 30b are fixing screws for fixing the return caps 23a and 23b, and 31a and 31b are fixing screws 30a and 30b. It is a screw hole to be screwed. In the present embodiment, the infinite circulation path is provided at two locations, upper and lower.

  Further, the upright portions 12a, 12b, 13a, 13b are formed with the upright portions 12a, 12b, 13a, 13b on the back surfaces of the first sliding body 5a and the second sliding body 5b at both ends in the front-rear direction. In this way, it is formed by cutting the central portions 28a and 28b. The central portions 28a and 28b are cut to form a flat surface, and the flat surfaces are set as contact surfaces 29a and 29b that are in contact with other sliding bodies.

  Also, reference surfaces 7a and 7b in which one side surface of the bases 9a and 9b of the first sliding body 5a and the second sliding body 5b abuts on the mounting reference surfaces 8b and 8a of the second sliding body 5b and the first sliding body 5a. Is set to

  Accordingly, in the first sliding body 5a and the second sliding body 5b, the contact surfaces 29a and 29b are in contact with each other, and the reference surfaces 7a and 7b are in contact with the mounting reference surfaces 8b and 8a of other sliding bodies. Will be connected in the state.

  Further, the reference surfaces 7a and 7b are pressed against the mounting reference surfaces 8b and 8a against the other standing portions 13a and 13b facing the one standing portions 12a and 12b on which the mounting reference surfaces 8a and 8b are formed. Pushing mechanisms 14a and 14b are provided.

  The pressing mechanisms 14a and 14b have screw holes 21a and 21b formed in the other upright portions 13a and 13b facing the mounting reference surfaces 8a and 8b formed on the inner surface of the upright portions 12a and 12b. 21b and pressing screws 22a and 22b screwed into the screw holes 21a and 21b.

  Accordingly, as shown in FIG. 5, a tool such as a wrench is fitted to the head of the pressing screws 22a and 22b that are screwed into the screw holes 21a and 21b, so that the pressing screws 22a and 22b are rotated. By projecting the tail portion from the screw holes 21a and 21b and pressing the opposite surface of the other sliding body to the reference surfaces 7b and 7a, the reference surfaces 7b and 7a are more reliably brought into contact with the mounting reference surfaces 8a and 8b. be able to.

  In this embodiment, the pressing mechanisms 14a and 14b are provided on both the first sliding body 5a and the second sliding body 5b. However, the pressing mechanism 14a or 14b may be provided only on one of the sliding bodies.

  Further, a screw portion 18 of a screw body 17 screwed into a screw hole 15 provided in the base portion 9a of the first slide body 5a can be inserted into the base portion 9b of the second slide body 5b, and a head portion 19 of the screw body 17 is inserted. Through which the first sliding body 5a and the second sliding member 5a and the second sliding member are inserted by screwing the screw portion 18 through which the insertion hole 20 is inserted and the screw hole 15 of the other base portion 9b. The moving body 5b is connected.

  Since the first sliding body 5a and the second sliding body 5b are connected sufficiently firmly by the screw body 17, the screw screws 17a and 22b are mounted after the screw body 17 is screwed into the screw hole 15. You may release the press by.

  Further, the reference surfaces 7a and 7b, the mounting reference surfaces 8a and 8b, the upper surfaces 27a and 27b of the standing portions 12a and 12b, and 13a and 13b of the first sliding body 5a and the second sliding body 5b of the present embodiment, and The contact surfaces 29a and 29b on the rear surface are cut by a cutting tool such as an end mill held by the same chuck to form a flat surface. Therefore, surface projection can be performed very efficiently and accurately, and a more highly accurate configuration can be realized.

  Since the present embodiment is configured as described above, the back surfaces of the first slide body 5a and the second slide body 5b are positioned with the reference surfaces 7a and 7b in contact with the other mounting reference surfaces 8a and 8b. Since the connection is achieved, not only high accuracy can be obtained, but also the height (combination height) is not increased as compared with a conventional configuration in which the connection is made via a table.

  Furthermore, since the first sliding body 5a and the second sliding body 5b having the same shape for a single shaft can be manufactured by changing the orientations of the first sliding body 5a and the second sliding body 5b, the back surfaces are connected to each other. Compared with the case where the moving body is cut out, it can be manufactured very easily and at a low cost.

  Further, the reference surfaces 7a and 7b of the first sliding body 5a and the second sliding body 5b, the mounting reference surfaces 8a and 8b, the upper surfaces 27a and 27b of the standing portions 12a and 12b, 13a and 13b, and the rear surface Since the contact surfaces 29a and 29b can be chamfered by cutting with a cutting tool such as an end mill held by the same chuck, a more highly accurate configuration can be realized.

  Therefore, the present embodiment is a sliding device that is easy to process and does not deteriorate in accuracy, and that is compact and extremely excellent in practicality.

It is a schematic explanatory side view of a conventional example. It is a schematic explanatory side view of a present Example. It is an expansion outline explanatory perspective view of the sliding part of a present Example. It is a disassembled outline explanatory perspective view of the sliding part of a present Example. It is a schematic explanatory top view of the sliding part of a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a 1st shaft body 1b 2nd shaft body 3 Sliding part 4 Load path 5a 1st sliding body 5b 2nd sliding body 7a * 7b Reference surface 8a * 8b Reference mounting surface 9a * 9b Base
10a ・ 10b Sleeve
12a, 12b (one) standing part
13a, 13b (the other) standing part
14a ・ 14b Pushing mechanism
15 Screw hole
17 Screw body
18 Screw part
19 head
20 Insertion hole

Claims (7)

  A first shaft body extending in the first direction, a second shaft body extending in a second direction intersecting the first direction, and the first shaft body and the second shaft body between the first shaft body and the second shaft body A sliding portion provided so as to slide relative to the shaft body, and load paths are provided between the first shaft body and the second shaft body and the sliding portion, respectively. Is a sliding device in which a plurality of rolling elements are provided, and the rolling elements are configured to roll along the load path, wherein the sliding portion slides relative to the first shaft body. A first sliding body that can be fitted and a back surface of the second sliding body that can be fitted to the second shaft body are connected to each other. A sliding device characterized in that a mounting reference surface is provided on the back side of each of the two sliding members, with which the second sliding member and the reference surface provided on the first sliding member come into contact.   2. The sliding device according to claim 1, wherein the first sliding body and the second sliding body include a base, the first shaft body or the second sliding body on which the first sliding body or the second sliding body is fitted. Left and right sleeves attached to the side surfaces of the first shaft body or the second shaft body, and front and rear end portions on the back side of the base portion. The sliding device is characterized in that the mounting reference surface is formed on one of the standing portions.   3. The sliding device according to claim 2, wherein one side surface of the base portion of the first sliding body and the second sliding body is set as a reference surface that comes into contact with an attachment reference surface of the second sliding body and the first sliding body. A sliding device characterized by that.   4. The sliding device according to claim 2, wherein the first sliding portion is disposed on the mounting reference surface on the other standing portion facing the one standing portion on which the mounting reference surface is formed. A sliding device comprising a pressing mechanism that presses the reference surface of the moving body or the second sliding body.   5. The sliding device according to claim 2, wherein one of the first sliding body and the second sliding body has a screw threadedly engaged with a screw hole provided in the other base portion. An insertion hole through which the screw portion of the body can be inserted and the head portion of the screw body cannot be inserted is provided, and the screw portion through which the insertion hole is inserted and the screw hole of the other base portion are screwed together, thereby One sliding body and said 2nd sliding body are connected, The sliding apparatus characterized by the above-mentioned.   The sliding device according to any one of claims 1 to 5, wherein the first shaft body and the second shaft body extend in directions orthogonal to each other. The sliding device according to claim 1, wherein the first sliding body and the second sliding body have the same shape.

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