JP2012135839A - Positioning component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a positioning device capable of reducing the height of the device with a simple structure.SOLUTION: The positioning component includes: a first slide member 21 supported by a rail 12 extending on the surface of a base 11 and having a side 21b perpendicular to the rail; a first linear guide 31 provided on the side 21b of the first slide member; a second slide member 22 supported by the rail 12 and having a slanted surface 22a extending upward on a slant from a side 22b opposing to the side 21b of the first slide member; a second linear guide 32 provided slantwise along the slanted surface 22a on the second slide member 22; a wedge-like up-and-down moving member 23 supported to be movable up and down by the first linear guide 31 and the second linear guide 32; a slide member driving part 41 mutually connecting the base 11 and the first slide member 21; and a slide member-distance adjustment part 42 connecting the first slide member 21 and the second slide member 22 to enable the mutual distance to be adjusted.

Description

  The present invention relates to a positioning component that positions a positioning target object by linearly moving and / or moving up and down.

  Patent Document 1 discloses a positioning component that positions a photosensitive material (positioning object) by moving it straight and / or up and down in order to irradiate a predetermined position of the photosensitive material with a laser beam by an optical drawing device. The positioning component in the same document is a component that moves a positioning object linearly (moves linearly in the horizontal direction) and positions it by moving the positioning object up and down (moves linearly in the vertical direction). It has a configuration in which (moving stages) are arranged in an overlapping manner.

JP 2000-343357 A (FIG. 2)

  An object of the present invention is to provide a positioning component that can be easily reduced in height and has a simple configuration.

  The inventor faces a first linear guide provided on a side surface perpendicular to the rail of the first slide member supported by the rail, and the side surface of the second slide member supported by the rail. The second linear guide provided on the slope extending diagonally upward from the side surface supports the wedge-shaped lifting component that supports the positioning object so that it can be moved up and down, thereby realizing a low-profile positioning component with a simple configuration. The present invention has been reached.

The present invention provides a base, a rail that extends linearly along the surface of the base, a first slide member that is slidably supported by the rail and has a side surface perpendicular to the rail, and the side surface of the first slide member. A first linear guide provided along the longitudinal direction; a second slide member supported by the rail so as to be slidable and having a slope extending obliquely upward from a side surface facing the side surface of the first slide member; And a wedge-shaped lifting member supported by the first linear guide and the second linear guide so as to be movable up and down, and the following (1) or ( The positioning part includes the slide member driving means described in 2).
(1) A slide member driving tool for connecting the base and the first slide member or the second slide member to each other, sliding the connected slide member along the rail, and the first slide member Slide member driving means including a slide member distance adjuster that connects the second slide members so as to allow adjustment of the distance between them.
(2) The first slide member driving tool that connects the base and the first slide member to each other, slides the first slide member along the rail, and the base and the second slide member. Slide member driving means including a second slide member driving tool for sliding the second slide members connected to each other along the rail.

Preferred embodiments of the positioning component of the present invention are as follows.
(I) The slide member drive means is the slide member drive means of (1) above, wherein the slide member drive tool is connected to the rotary shaft and a rotary drive device having a rotary shaft arranged in parallel with the rail. The slide member distance adjuster includes a rotary drive device having a rotary shaft arranged in parallel with the rail, and a feed screw connected to the rotary shaft.
(II) The slide member drive means is the slide member drive means of (2) above, and both the first slide member drive tool and the second slide member drive tool are arranged in parallel with the rail. And a feed screw connected to the rotary shaft.

  The positioning component of the present invention has a simple configuration in which a lifting member on which a positioning object is supported is supported by a linear guide provided in each of a first slide member and a second slide member installed on a rail. ing. The positioning component of the present invention does not need to be configured by stacking a component that moves the positioning object linearly and a component that moves the positioning object up and down, that is, the positioning object of the lower part Since the supporting member and the base of the upper part are unnecessary, it is easy to reduce the height.

It is a top view which shows the structural example of the positioning component of this invention. It is a partially cutaway front view of the positioning component 10 of FIG. It is the figure which looked at the positioning component 10 of FIG. 1 from the right side of the figure. The figure which shows the positioning component 10 of FIG. 2 in the state which moved the raising / lowering member 23 to the right direction of a figure (linear motion). However, in order to facilitate understanding of the operations of the slide members 21 and 22 and the elevating member 23, the slide member driving tool 41 shown in FIG. The figure which shows the positioning component 10 of FIG. 4 in the state which moved the raising / lowering member 23 to the upper direction of the figure (rise). However, in order to facilitate understanding of the operations of the slide members 21, 22 and the elevating member 23, the slide member driving tool is not shown. It is a top view which shows another structural example of the positioning component of this invention. It is sectional drawing of the positioning component 60 cut | disconnected along the cutting line VII-VII line entered in FIG. It is the figure which looked at the positioning component 60 of FIG. 6 from the right side of the figure. It is the figure which looked at the positioning component 60 of FIG. 6 from the left side of the figure.

  The positioning component of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view showing a configuration example of a positioning component according to the present invention. FIG. 2 is a partially cutaway front view of the positioning component 10 of FIG. 3 is a view of the positioning component 10 of FIG. 1 viewed from the right side of the drawing.

  1 to 3 includes a base 11, a rail 12 that extends linearly along the surface of the base 11, a slidably supported by the rail 12, and a side surface 21 b that is perpendicular to the rail 12. One slide member 21, a first linear guide 31 provided along the longitudinal direction on the side surface 21 b of the first slide member 21, and slidably supported on the rail 12, and on the side surface 21 b of the first slide member 21. A second slide member 22 having an inclined surface 22a extending obliquely upward from the opposite side surface 22b, a second linear guide 32 provided on the second slide member 22 along the inclined surface 22a, and a first linear guide 31 and a second linear guide 32. The wedge-shaped lifting member 23 is supported by the second linear guide 32 so as to be movable up and down, and a slide member driving means described later.

  The first slide member 21 includes a slider 13 a that can slide along the rail 12 on the bottom surface. Similarly, the second slide member 22 includes a slider 13b that can slide along the rail 12 on the bottom surface thereof.

  The first linear guide 31 includes a rail 31a and a slider 31b that is slidably mounted on the rail 31a. The rail 31 a of the first linear guide 31 is fixed to the side surface 21 b of the first slide member 21, and the slider 31 b is fixed to the side surface 23 b of the elevating member 23. The rail 31 a of the first linear guide 31 can be fixed to the side surface 23 b of the elevating member 23, and the slider 31 b can be fixed to the side surface 21 b of the first slide member 21.

  The second linear guide 32 includes a rail 32a and a slider 32b that is slidably mounted on the rail 32a. The rail 32 a of the second linear guide 32 is fixed to the inclined surface 23 a of the elevating member 23, and the slider 32 b is fixed to the inclined surface 22 a of the second slide member 22. Note that the rail 32 a of the first linear guide 32 can be fixed to the inclined surface 22 a of the second slide member 22, and the slider 32 b can be fixed to the inclined surface 23 a of the elevating member 23.

  The elevating member 23 that supports the positioning object has a slope 23a on the bottom surface that faces the slope 22a of the second slide member 22. The elevating member 23 is supported by a first linear guide 31 and a second linear guide 32 so as to be movable up and down.

  The elevating member 23 moves (linearly moves) along the rail 12 by sliding the first slide member 21 and the second slide member 22 along the rail 12 in the same direction.

  On the other hand, one or both of the first slide member 21 and the second slide member 22 are slid along the rail 12 to bring the slide members 21 and 22 closer to each other (the interval between the slide members 21 and 22 is reduced). ), The elevating member 23 can be raised.

  For example, when the second slide member 22 is slid along the rail 12 and close to the first slide member 21, the slider 32b of the second linear guide 32 slides toward the lower end side of the rail 32a. Thereby, the raising / lowering member 23 is supported by the 2nd slide member 22 via the slider 32b slid to the lower end side of the rail 32a. For this reason, the elevating member 23 rises along the rail 31 a together with the slider 31 b of the first linear guide 31.

  On the contrary, one or both of the first slide member 21 and the second slide member 22 are slid along the rail 12, and the two slide members are moved away from each other (the interval between the slide members 21, 22 is increased). By doing so, the elevating member 23 can be lowered.

  For example, when the second slide member 22 is slid along the rail 12 and moved away from the first slide member 21, the slider 32b of the second linear guide 32 slides toward the upper end side of the rail 32a. Thereby, the raising / lowering member 23 is supported by the 2nd slide member 22 via the slider 32b slid to the upper end side of the rail 32a. For this reason, the elevating member 23 descends along the rail 31 a together with the slider 31 b of the first linear guide 31.

  The positioning component 10 is placed on the elevating member 23 by a simple configuration supported by linear guides 31 and 32 provided in the first slide member 21 and the second slide member 22 each having the elevating member installed on the rail 12. It is possible to position the positioned object by moving it straight and / or up and down. The positioning component 10 does not need to be configured by stacking a component that positions the positioning object by moving it linearly and a component that positions the positioning object by raising and lowering the positioning object, that is, supports the positioning object of the lower part. Since the member and the base of the upper part are unnecessary, the height can be reduced or the weight can be reduced.

  The positioning component 10 connects the base 11 and the first slide member 21 to each other. The connected slide member 21 (the slide member connected to the base 11 via the slide member driving tool 41). Slide member driving tool 41 that slides along the rail 12, and a distance adjustment tool between the slide members that connects the first slide member 21 and the second slide member 22 so as to allow mutual adjustment of the distance between them. 42 is provided.

  The first slide member 21 and the second slide member 22 slide along the rail 12 while being connected to each other via the inter-slide member distance adjuster 42. Therefore, even when the base 11 and the first slide member 21 are connected to each other by the slide member driving tool 41, the base 11 and the second slide member 22 are connected to each other. Even when the slide member is slid along the rail 12 via the inter-slide member distance adjuster 42, the remaining slide members also slide along the rail 12. Therefore, the base 11 and the second slide member 22 may be connected to each other by the slide member driving tool 41.

  The slide member drive tool 41 includes a rotation drive device 43 having a rotation shaft 43a arranged in parallel with the rail 12, and a feed screw 45 connected to the rotation shaft 43a. The feed screw 45 includes a screw shaft 45a and a nut 45b fitted around the screw shaft 45a. The screw shaft 45 a of the feed screw 45 is connected to the rotary shaft 43 a via a connection tool (coupling) 47.

  The rotation drive device 43 is installed (connected) on the base 11, and the nut 45 b of the feed screw 45 is housed and fixed (connected) in the through hole of the protruding portion 21 a of the first slide member 21. Yes. It is also possible to install (connect) the rotary drive device 43 to the first slide member 21 and fix (connect) the nut 45 b of the feed screw 45 to the base 11.

  When the rotary drive device 43 of the slide member drive tool 41 is operated and the rotary shaft 43a is rotated together with the screw shaft 45a, the nut 45b fitted to the screw shaft 45a is fixed to the nut 45b. 21 and slides along the rail 12 together. Thus, the first slide member 21 (or the second slide member 22 connected to the first slide member 21 via the inter-sliding member distance adjuster 42) is arranged at a predetermined position on the rail 12. can do.

  Since the 1st slide member 21 and the 2nd slide member 22 are mutually connected via the distance adjustment tool 42 between slide members, the raising / lowering member 23 currently supported by the 2nd slide member 22 and on it The placed positioning object (not shown) is also moved (linearly moved) in the length direction of the rail 12 and placed (positioned) at a predetermined position.

  For example, the slide member driving tool 41 of the positioning component 10 shown in FIG. 2 is used to slide the first slide member 21 in the right direction of the drawing and place it at a predetermined position on the rail 12 as shown in FIG. As described above, the elevating member 23 and the positioning object placed thereon are also moved (linearly moved) in the right direction of the figure and positioned.

  As shown in FIG. 2, the inter-sliding member distance adjuster 42 includes a rotation drive device 44 having a rotation shaft 44 a disposed in parallel with the rail 12, and a feed screw 46 connected to the rotation shaft 44 a. Yes. The feed screw 46 includes a screw shaft 46a and a nut 46b fitted around the screw shaft 46a. The screw shaft 46 a of the feed screw 46 is connected to the rotary shaft 44 a via the connection tool 47.

  The rotation drive device 44 is installed (connected) on the first slide member 21, and the nut 46 b of the feed screw 46 is accommodated and fixed (connected) in the through hole of the second slide member 22. It is also possible to install (connect) the rotary drive device 44 to the second slide member 22 and fix (connect) the nut 46 b of the feed screw 46 to the first slide member 21.

  When the rotation drive device 44 of the slide member distance adjusting tool 42 is operated and the rotation shaft 44a is rotated together with the screw shaft 46a (forward rotation or reverse rotation), the nut 46b fitted to the screw shaft 46a is fixed to the nut 46b. It slides along the rail 12 together with the second slide member 22. Thereby, the space | interval of the 1st slide member 21 and the 2nd slide member 22 can be adjusted.

  By adjusting the distance between the first slide member 21 and the second slide member 22, the elevating member 23 and the positioning object (not shown) placed thereon move in the vertical direction (elevate). Then, it is arranged (positioned) at a predetermined height.

  For example, the slide member distance adjuster 42 of the positioning component 10 shown in FIG. 4 is used to slide the second slide member 22 in the left direction of the drawing so as to approach the first slide member 21 (both slide members 21, 22). As shown in FIG. 5, the elevating member 23 and the positioning object placed thereon are moved (raised) in the upper direction of the figure to be positioned.

  The slide member driving means included in the positioning component 10 is configured so that the distance between the first slide member 21 and the second slide member 22, that is, the height of the elevating member 23 is set by one rotary drive device (rotary drive device 44). In order to adjust, the raising / lowering member 23 can be raised / lowered with high precision.

  The second linear guide 32 of the positioning component 10 shown in FIGS. 1 to 3 is fixed to each of the slope 22 a of the second slide member 22 and the slope 23 a of the elevating member 23. For example, the second linear guide 32 can be fixed to each of the side surfaces (the front side surface or the back side surface in FIG. 2) close to the inclined surfaces of the second slide member 22 and the lifting member 23. In this case, the inclination angle of the second linear guide 32 does not need to coincide with the inclination angle of the inclined surface 22 a of the second slide member 22 or the inclined surface 23 a of the elevating member 23. The relationship between the distance between the slide members 21 and 22 and the vertical position of the elevating member 23 is determined by the inclination angle of the second linear guide 32.

  Further, the rotary drive device and the feed screw used as the slide member drive tool 41 or the slide member distance adjuster 42 function as a linear drive device. Therefore, instead of the rotation drive device 43 and the feed screw 45, or the rotation drive device 44 and the feed screw 46, known linear motion drive devices (eg, linear motors) can be used. As each of the rotation drive devices 43 and 44, a known rotation drive device (representative example, a stepping motor) can be used.

  FIG. 6 is a plan view showing another configuration example of the positioning component of the present invention. FIG. 7 is a cross-sectional view of the positioning component 60 cut along the cutting line VII-VII written in FIG. FIG. 8 is a view of the positioning component 60 of FIG. 6 as viewed from the right side of the drawing. FIG. 9 is a view of the positioning component 60 of FIG. 6 as viewed from the left side of the drawing.

  The configuration of the positioning component 60 shown in FIGS. 6 to 9 is the same as that of the positioning component 10 shown in FIGS. 1 to 3 except that the configuration of the slide member driving means is different.

  The positioning component 60 connects the base 11 and the first slide member 61 to each other, the first slide member driving tool 51 that slides the first slide member 61 along the rail 12, and the base 11. And a second slide member 62 are connected to each other, and a slide member drive means comprising a second slide member drive tool 52 for sliding the second slide member 62 along the rail 12 is provided.

  The first slide member driving tool 51 includes a rotation driving device 43 having a rotation shaft 43a arranged in parallel with the rail 12, and a feed screw 45 connected to the rotation shaft 43a. The nut 45 b of the feed screw 45 is housed and fixed in the through hole of the protruding portion 61 a of the first slide member 61. Similarly, the second slide member drive tool 52 includes a rotation drive device 44 having a rotation shaft 44a arranged in parallel with the rail 12, and a feed screw 46 connected to the rotation shaft 44a. The nut 46 b of the feed screw 46 is housed and fixed in the through hole of the protruding portion 62 a of the second slide member 62.

  By operating the rotation drive device 43 of the first slide member driving tool 51, the first slide member 61 connected to the rotation drive device 43 via the feed screw 45 is slid along the rail 12, and the rail 12 can be arranged in a predetermined position. Then, by operating the rotation drive device 44 of the second slide member drive tool 52, the second slide member 62 connected to the rotation drive device 44 via the feed screw 46 is slid along the rail 12, and the rail 12 can be arranged in a predetermined position.

  Therefore, using the first slide member driving tool 51 and the second slide member driving tool 52, the first slide member 61 and the second slide member 62 are kept at a constant interval. By sliding along the rail 12 in the state, the elevating member 23 and the positioning object placed thereon can be moved (linearly moved) along the rail for positioning.

  On the other hand, the first slide member driving tool 51 and the second slide member driving tool 52 are used to slide each of the first slide member 61 and the second slide member 62 along the rail 12 and both slide members. By adjusting the distance between 61 and 62, the elevating member 23 and the positioning object placed thereon can be elevated and positioned.

  The slide member driving means provided in the positioning component 60 is provided with the rotary drive devices 43 and 44 on the base 11 and does not move. Therefore, various cables (typical examples) connected to the respective rotary drive devices. The arrangement of the power cable can be fixed.

  The positioning component of the present invention can be used, for example, as an XZ stage that positions an article to be machined by moving and / or moving up and down. In addition, a large XZ stage can be configured by supporting a large-sized stage plate using a plurality of positioning parts of the present invention. In addition, the positioning component (XZ stage) of the present invention and another positioning component (for example, Y stage, θ stage) can be arranged to overlap each other to constitute a multi-degree-of-freedom positioning component. In addition, the stage plate is supported by a plurality of positioning parts of the present invention, and various bearings (linear motion bearings, rotary bearings, or spherical bearings) are installed between the stage plate and the lifting member of each positioning part. Thus, a positioning component with multiple degrees of freedom can be configured.

DESCRIPTION OF SYMBOLS 10 Positioning part 11 Base 12 Rail 13a, 13b Slider 21 First slide member 21a Protruding part 21b Side surface 22 Second slide member 22a Slope 22b Side surface 23 Lifting member 23a Slope 23b Side surface 31 First linear guide 31a Rail 31b Slider 32 Second linear guide 32a Rail 32b Slider 41 Slide member drive tool 42 Slide member distance adjuster 43, 44 Rotation drive device 43a, 44a Rotating shaft 45, 46 Feed screw 45a, 46a Screw shaft 45b 46b Nut 47 Connector 51 First slide member drive tool 52 Second slide member drive tool 60 Positioning component 61 First slide member 61a Protruding portion 62 Second slide member 62a Protruding portion

Claims (3)

A base, a rail that extends linearly along the surface of the base, a first slide member that is slidably supported by the rail and has a side surface perpendicular to the rail, and a vertical direction along the side surface of the first slide member A first linear guide provided on the rail, slidably supported on the rail, and a second slide member having a slope extending obliquely upward from a side surface facing the side surface of the first slide member; The second linear guide provided to be inclined along the slope, the wedge-shaped lifting member supported by the first linear guide and the second linear guide so as to be movable up and down, and the following (1) or (2) Positioning parts including the sliding member driving means:
(1) A slide member driving tool for connecting the base and the first slide member or the second slide member to each other, sliding the connected slide member along the rail, and the first slide member A slide member driving means including a slide member distance adjuster connecting the second slide members so as to enable adjustment of the distance between them; or (2) connecting the base and the first slide member to each other. A first slide member driving tool that slides the slide member along the rail, and a base and a second slide member that are connected to each other, and the slide member is slid along the rail. Slide member driving means including two slide member driving tools.   The slide member drive means is the slide member drive means of (1) above, wherein the slide member drive tool has a rotary drive device having a rotary shaft arranged in parallel with the rail, and a feed connected to the rotary shaft. The positioning component according to claim 1, comprising a screw, and the slide member distance adjuster comprising a rotary drive device having a rotary shaft arranged in parallel with the rail, and a feed screw connected to the rotary shaft.   The slide member drive means is the slide member drive means of (2) above, and both the first slide member drive tool and the second slide member drive tool have a rotation shaft disposed in parallel with the rail. The positioning component according to claim 1, comprising a driving device and a feed screw connected to the rotating shaft.

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