JP2007152488A - Dust-proof structure of slider and its dust-proof adapter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the total height of a slider, and to provide a means for facilitating cleaning work. <P>SOLUTION: A dust-proof adapter 11 having a sleeve part 15 where an adapter groove 16 for passing the side plate 9 of a cover plate 7 having a U-shaped section is formed is mounted on the top face 6a of a slider 6 supported on a rail 5 installed on a base 2 to linearly reciprocate, and the upper end face of an outer wall 21 of the dust-proof adapter 11 is formed parallel to the top face 6a of the slider 6 and located above the upper plate 8 of the cover plate 7 to be taken as a stage mounting surface 20 for mounting a moving stage 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is installed in a slide device that linearly reciprocates a moving stage on which a moving object such as a tool table or a welding robot is installed in a welding process of a machine tool or an automobile production line, and chips to the slide device The present invention relates to a dust-proof structure of a slide device and a dust-proof adapter thereof that prevent entry of foreign matter such as welding spatter.

The conventional dust-proof structure of the slide device has rails that support the slider so that it can move back and forth in a straight line on the base, and the rails are placed on the plates arranged at both ends of the slider movement direction (referred to as slider movement direction). A cover plate having a U-shaped cross-section formed by an upper plate extending over the entire length of the plate and side plates facing each other with the slider provided at both ends in the width direction orthogonal to the slider moving direction; A movable bracket integrally formed on the upper surface of the slider disposed below the upper plate of the cover plate is fixed, and a U-shape provided on each of the movable bracket at both ends in the width direction of the fastening portion. A space between the outer wall of the sleeve portion and the top plate connected between the outer walls of the sleeve portion and opposed to the fastening portion forms a U-shaped cross-section space surrounding the cover plate, and the object to be moved is Install the movable stage location on the upper surface of the top plate to prevent foreign material from entering the slide device (e.g., see Patent Document 1.).
Japanese Patent Laid-Open No. 7-158639 (2nd page paragraph 0006-3rd page paragraph 0010, FIG. 3)

  However, in the above-described conventional technology, a space having a U-shaped cross-section surrounding the cover plate is formed in the moving bracket, and the movable body is installed on the top surface of the top plate provided over the entire width of the moving bracket. Since the moving stage is attached, there is a problem that the total height of the slide device is increased by an amount corresponding to the thickness of the top plate, and the equipment in which the slide device is installed is increased in size.

  In addition, since the cover plate is inserted through the space of the U-shaped cross section provided in the integrally formed moving bracket, in order to remove foreign matter that has dropped from the cover plate into the groove of the U-shaped sleeve part After removing the moving stage and the cover plate, it is necessary to use a special cleaning tool or remove the moving bracket from the slider and take out the foreign matter from the opening of the groove end of the U-shaped sleeve. There is a problem that it becomes difficult.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide means for reducing the overall height of the slide device and facilitating the cleaning operation.

  In order to solve the above problems, the present invention is supported by a base, a moving stage on which a moving object to be moved, a rail installed on the base, and a linear reciprocating movement on the rail. A slider, an upper plate extending in the moving direction of the slider over the entire length of the rail, and disposed between the slider and the moving stage, and orthogonal to the moving direction of the slider on the upper plate In a dust-proof structure of a slide device, which is provided at both ends in the width direction and has a cover plate having a U-shaped cross-section formed by side plates facing each other with the slider interposed therebetween, and is fixed to the upper surface of the slider, and the cover A fastening portion disposed below the upper plate of the plate; sleeves provided at both ends of the fastening portion in the width direction; and disposed on the sides of the slider; and the cover plate, Side plate A dustproof adapter having an adapter groove to be inserted is provided, and the upper end surface of the outer wall between the adapter groove on both sides of the dustproof adapter and the outer side surface in the width direction of each sleeve is parallel to the upper surface of the slider. And a stage mounting surface on which the movable stage is mounted.

  As a result, the present invention can directly attach the moving stage to the stage mounting surface of the outer wall of the dustproof adapter, reduce the overall height of the slide device, and open the space between the stage mounting surfaces of the dustproof adapter. Therefore, if the moving stage and the cover plate are removed, the foreign matter accumulated in the adapter groove of the dustproof adapter can be easily removed, and the effect that the foreign matter can be easily cleaned is obtained.

  Embodiments of a dustproof structure for a slide device according to the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory view showing the front of the slide device of the first embodiment, and FIG. 2 is an explanatory view showing the upper surface of the dustproof adapter of the first embodiment.
In FIG. 1, reference numeral 1 denotes a slide device, which is installed on a base 2 and linearly moves a moving object such as a tool table or a welding robot that is installed on an upper surface 3 a of a moving stage 3. Device.

Reference numeral 4 denotes a linear guide device, which includes a long rail 5 installed on the upper surface 2a of the base 2 and a slider 6 supported on the rail 5 via a ball (not shown) so as to be able to reciprocate linearly.
Reference numeral 7 denotes a cover plate, which is a long cover member extending over the entire length of the rail 5 in the slider moving direction (referred to as the vertical direction in FIG. 2) shown in FIG. An upper plate 8 disposed parallel to the upper surface 6a of the slider 6 between the lower surface 3b of the moving stage 3, and a width direction shown in FIG. 2 orthogonal to the slider moving direction of the upper plate 8 on the upper surface 6a of the slider 6 ( 2, which is the left and right direction in FIG. 2) and has a U-shaped cross-sectional shape formed by side plates 9 facing each other with the slider 6 interposed therebetween, and both ends of the rail 5 in the slider moving direction. It is being fixed to the base 2 with the plate which is not illustrated arrange | positioned.

  Reference numeral 11 denotes a dustproof adapter, which has a W-shaped cross-sectional shape integrally formed by casting, forging, pultrusion using a die, or the like, and has a length equal to or greater than the length of the slider 6 in the slider moving direction. The upper end of the slider 6 is inserted into a fitting groove 13 formed along the slider moving direction on the slider 6 side surface of the fastening portion 12 positioned below the upper plate 8 of the cover plate 7 as shown in FIG. The parts are fitted and fixed to the upper surface 6a of the slider 6 with bolts or the like.

Reference numeral 15 denotes a sleeve portion of the dustproof adapter 11, which is provided at both ends of the fastening portion 12 in the width direction and is disposed on the side of the slider 6. A gap S is formed between the slider 6 side surface and the slider 6. Is provided.
Reference numeral 16 denotes an adapter groove, which is a U-shaped groove formed on the upper surface side of each sleeve portion 15 along the slider moving direction as shown in FIG. 9 is inserted, falls on the upper plate 8 during the operation of the slide device 1, and foreign matter such as chips and welding spatter dropped along the side plate 9 accumulates.

Further, the side surfaces 17 on both sides of each adapter groove 16 are formed as tapered surfaces inclined in the direction of narrowing the groove bottom of the adapter groove 16, and corners R are formed at the corners with the bottom surface.
Further, a discharge hole 18 penetrating from the groove bottom of the adapter groove 16 to the lower surface 15 b of the sleeve portion 15 for discharging foreign matter accumulated in the adapter groove 16 is formed in the groove bottom of each adapter groove 16.

Reference numeral 20 denotes a stage mounting surface. The upper end surface of each outer wall 21 between the adapter grooves 16 on both sides of the dust-proof adapter 11 and both side surfaces on the outer side in the width direction of the sleeve portion 15 is connected to the upper plate 8 of the cover plate 7. At a position above the upper surface 8a of the slider 6, it is formed by scraping in parallel with the upper surface 6a of the slider 6, and the moving stage 3 is directly attached.
Further, each stage mounting surface 20 is inserted into a mounting hole 22 provided on the lower surface 3b of the moving stage 3, and a pin hole 24 for fitting a mounting pin 23 to prevent the displacement of the moving stage 3 by press fitting. Is formed.

As shown in FIG. 2, the pin holes 24 of this embodiment are formed in two places on each stage mounting surface 20, for a total of four places.
Reference numeral 26 denotes a side cover, which is formed by bending a thin plate such as a steel plate having a length equal to the entire length of the rail 5 into an L shape, and the tip of one side extends to above the upper surface 5a of the rail 5, The other side is installed on the base 2 with a bolt 27 and is arranged between the slider 6 side surface of the sleeve portion 15 of each dust-proof adapter 11 and the gap S between the slider 6.

  As described above, the dustproof adapter 11 of the present embodiment eliminates the top plate as in Patent Document 1 and attaches the movable stage 3 directly to the stage mounting surface 20 of the outer wall 21 of the dustproof adapter 11. The overall height of the device 1 (which refers to the height from the upper surface 2a of the base 2 to the lower surface 3b of the moving stage 3) can be reduced, and the equipment in which the slide device 1 is installed can be downsized. Since the space between the stage mounting surfaces 20 of the dustproof adapter 11 is open, the dustproof adapter 11 and the slider 6 can be easily attached and detached from above using bolts.

  Further, since the space between the stage mounting surfaces 20 of the dustproof adapter 11 is open, if the movable stage 3 and the cover plate 7 are removed, even if the dustproof adapter 11 remains attached to the slider 6, a normal brush or the like can be used. The foreign matter accumulated in the adapter groove 16 can be easily removed using the cleaning tool, the foreign matter can be easily cleaned, and the maintenance time of the facility in which the slide device 1 is installed can be shortened.

  Furthermore, even if the top plate is abolished, the mounting pin 23 attached to the pin hole 24 provided on the stage mounting surface 20 of the dustproof adapter 11 is fitted into the mounting hole 22 of the moving stage 3 so that the moving stage 3 is attached to the dustproof adapter 11. Since it is attached, it is possible to prevent the dust-proof adapter 11 and the moving stage 3 from being displaced, and it is possible to increase the coupling force of the dust-proof adapter 11 as a structure, prevent the opening between the outer walls 21, and the adapter groove 16. It is possible to reduce stress concentration on the bottom of the groove.

Further, since the corner R is provided at the corner between the side surface 17 and the bottom surface of the adapter groove 16, the strength of the sleeve portion 15 can be increased, and the foreign matter falling into the adapter groove 16 can be removed from Thus, foreign matter can be easily discharged through the discharge hole 18.
Further, since the side cover 26 whose tip extends to the upper side of the upper surface 5a of the rail 5 is installed between the gap S between the slider 6 side surface of each sleeve portion 15 of the dust-proof adapter 11, the dust-proof adapter. 11 moves the rail 5 to the linear guide device 4 for foreign matter dropped from the cover plate 7 to the upper surface 2a of the substrate 2 at a portion where the dust-proof adapter 11 does not exist and foreign matter discharged from the discharge hole 18 to the upper surface 2a of the substrate 2. Can be prevented from entering.

  As described above, in this embodiment, an adapter groove for inserting the side plate of the cover plate having a U-shaped cross section is formed on the upper surface of the slider supported so as to be linearly reciprocable on the rail installed on the base. A dustproof adapter having a sleeve portion is attached, and the upper end surface of the outer wall of the dustproof adapter is formed parallel to the upper surface of the slider so as to be positioned above the upper plate of the cover plate, and this is used as a stage mounting surface for mounting the moving stage. This eliminates the top plate and allows the moving stage to be mounted directly on the stage mounting surface of the outer wall of the dustproof adapter, reducing the overall height of the slide device and opening the space between the stage mounting surfaces of the dustproof adapter. Therefore, foreign matter accumulated in the adapter groove of the dustproof adapter can be easily removed by removing the moving stage and cover plate. The 掃作 industry can be easily performed.

In addition, by forming a pin hole for fitting a mounting pin inserted into the mounting hole of the moving stage on each stage mounting surface of the dustproof adapter, it is possible to prevent deviation between the dustproof adapter and the moving stage. In addition, it is possible to reduce the concentration of stress on the bottom of the adapter groove by increasing the coupling force of the dustproof adapter as a structure.
Furthermore, the strength of the sleeve portion can be increased by forming the corner R at the corner between the bottom surface of each adapter groove and the side surfaces on both sides of the dustproof adapter.

Furthermore, by forming a discharge hole for discharging accumulated foreign matter on the bottom of each adapter groove of the dustproof adapter, foreign matter accumulated in the adapter groove can be discharged even during the operation of the slide device. It is possible to prevent foreign matter from getting caught in the lower end of the side plate of the cover plate due to the accumulation of foreign matter on the bottom of the groove.
Furthermore, by making the side surfaces on both sides of each adapter groove of the dustproof adapter tapered, it is possible to widen the opening on the opposite side of the groove bottom of the adapter groove, and to discharge foreign matter accumulated on the bottom of the adapter groove. Can be easily performed, and the cleaning operation can be performed more easily.

  Further, the dust cover adapter is provided with a side cover that extends between the slider side surface of each sleeve portion of the dustproof adapter and the gap S between the sliders and extends over the entire length of the rail. However, it is possible to prevent foreign matter that has fallen on the substrate from the cover plate from entering the linear guide device at a site where the rail is moved and the dustproof adapter is not present.

FIG. 3 is an explanatory view showing the front of the slide device of the second embodiment.
In addition, the same part as the said Example 1 attaches | subjects the same code | symbol, and abbreviate | omits the description.
The dustproof adapter 11 of the present embodiment is formed in the same manner as in the first embodiment, but the fitting groove 30 formed along the slider moving direction on the surface of the fastening portion 12 on the slider 6 side is the slider 6. It is formed wider than the width, and one side surface 31 functions as a reference surface when the dustproof adapter 11 is fixed to the slider 6. At this time, an interval indicated by A in FIG. 3 is formed between the other side surface 31 of the fitting groove 30 and the upper end surface of the slider 6 facing the side surface 31.

The distance A in this embodiment is formed to have a dimension of 5 mm or less.
Further, a stepped bolt hole 32 is formed in the upper surface 12 a of the fastening portion 12, and the fitting groove 30 is brought into contact with the reference surface by a bolt 33 in which the head is housed in the large diameter portion of the stepped bolt hole 32. Thus, the upper end portion of the slider 6 is fixed to the upper surface 6a.
Further, the height B from the upper surface 2a of the substrate 2 at the lower end of the side plate 9 of the cover plate 7 inserted through the adapter groove 16 formed in the sleeve portion 15 is the height from the upper surface 2a of the substrate 2 of the upper surface 5a of the rail 5. The height C of the bottom of the adapter groove 16 from the upper surface 2 a of the substrate 2 is lower than the height H of the rail 5.

Although not shown in FIG. 3, a side cover 26 similar to that of the first embodiment is installed between the slider 6 and the surface on the slider 6 side of each sleeve portion 15 of the dustproof adapter 11. Is done.
If comprised as mentioned above, since the surface of the upper end part of the slider 6 can be made to contact | abut to the one side surface 31 used as the reference surface of the fitting groove 30, the dust-proof adapter 11 can be fixed to the slider 6, Therefore The dustproof adapter 11 can be easily assembled to the slider 6 while maintaining the accuracy of the parallelism of the slider movement direction with the dustproof adapter 11.

Further, since the interval A between the other side surface 31 of the fitting groove 30 and the surface of the upper end portion of the slider 6 facing the side surface 31 is narrowed to 5 mm or less, the fastening portion by an external force acting on the stage mounting surface 20 12 can be prevented by the backup effect of the slider 6, and stress concentration generated in the fastening portion 12 can be reduced without increasing the thickness of the fastening portion 12.
Furthermore, since the space between the stage mounting surfaces 20 of the dustproof adapter 11 is open, the dustproof adapter 11 and the slider 6 can be easily attached and detached from above using bolts, and the large diameter of the stepped bolt hole 32 is obtained. The head portion of the bolt 33 can be accommodated in the portion to reduce the thickness of the fastening portion 12, and the overall height of the slide device 1 can be further reduced by setting the mounting height of the cover plate 7 low. .

Furthermore, since the height B of the lower end of the side plate 9 of the cover plate 7 is formed to be lower than the height H of the upper surface 5a of the rail 5, the dustproof adapter 11 moves on the rail 5 and the dustproof adapter 11 does not exist. The upper surface 5a of the rail 5 of the part is covered with the cover plate 7, and foreign matter that enters the upper surface 5a of the rail 5 from the side can be prevented.
As described above, in this embodiment, in addition to the same effects as in the first embodiment, one side surface of the fitting groove provided on the slider side surface of the fastening portion of the dustproof adapter is used, and the dustproof adapter is provided on the slider. By using the reference surface for fixing, the upper end surface of the slider is brought into contact with one side surface of the fitting groove as a reference surface to maintain the accuracy of parallelism in the slider movement direction between the slider and the dustproof adapter. However, the dustproof adapter can be easily assembled to the slider.

Further, since the distance A between the other side surface of the fitting groove and the surface of the slider facing this side surface is set to 5 mm or less, the deformation of the fastening portion due to the external force acting on the stage mounting surface can be prevented. Can be prevented.
Furthermore, the lower end of the side plate of the cover plate is positioned below the upper surface of the rail, so that the dust-proof adapter moves the rail and prevents foreign matter from entering the upper surface of the rail at the site where the dust-proof adapter does not exist. be able to.

In each of the above embodiments, it has been described that each stage mounting surface of the dustproof adapter is provided with two pin holes, but it is sufficient that at least one pin hole is provided on each stage mounting surface. There may be.
Moreover, in each said Example, although demonstrated as having formed a discharge hole in one place of the groove bottom of each adapter groove | channel of a dustproof adapter, the number of discharge holes may be two or more, and each adapter groove | channel Different numbers of discharge holes may be formed.

Further, in each of the above-described embodiments, the side surfaces on both sides of each adapter groove of the dustproof adapter are described as tapered surfaces. However, it is sufficient that at least one of the side surfaces on both sides of each adapter groove is a tapered surface.
Further, in each of the above embodiments, the linear guide device using a ball as a rolling element has been described as an example, but the same applies to a linear guide device using a roller as a rolling element.

Explanatory drawing which shows the front of the slide apparatus of Example 1. Explanatory drawing which shows an upper surface in the dustproof adapter of Example 1 Explanatory drawing which shows the front of the slide apparatus of Example 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slide apparatus 2 Base 2a, 3a, 5a, 6a, 8a, 12a Upper surface 2b, 3b, 6b, 15b Lower surface 3 Movement stage 4 Linear guide apparatus 5 Rail 6 Slider 7 Cover plate 8 Upper plate 9 Side plate 11 Dust-proof adapter 12 Fastening Part 13, 30 Fitting groove 15 Sleeve part 16 Adapter groove 17, 31 Side face 18 Discharge hole 20 Stage mounting surface 21 Outer wall 22 Mounting hole 23 Mounting pin 24 Pin hole 26 Side cover 32 Stepped bolt hole 33 Bolt

Claims (16)

The base,
A moving stage for setting a moving object to be moved;
A rail installed on the base;
A slider supported on the rail so as to be linearly reciprocable;
An upper plate that extends over the entire length of the rail in the moving direction of the slider and is disposed between the slider and the moving stage, and both ends of the upper plate in the width direction perpendicular to the moving direction of the slider In a dust-proof structure of a slide device provided with a cover plate having a U-shaped cross-sectional shape formed with a side plate opposed to the slider,
A fastening portion fixed to the upper surface of the slider and disposed below the upper plate of the cover plate;
Sleeve portions provided at both ends of the fastening portion in the width direction and disposed on the sides of the slider;
Provided with a dustproof adapter formed in the sleeve portion and having an adapter groove for inserting the side plate of the cover plate;
An upper end surface of the outer wall between the adapter grooves on both sides of the dustproof adapter and the outer side surface in the width direction of each sleeve portion is formed in parallel with the upper surface of the slider, and above the upper plate of the cover plate. A dust-proof structure for a slide device, characterized in that it is a stage mounting surface on which the movable stage is mounted. In claim 1,
A dust-proof structure for a slide device, wherein a pin hole for fitting a mounting pin inserted into the mounting hole of the movable stage is formed in at least one position of the stage mounting surface of each of the dust-proof adapters. In claim 1 or claim 2,
A dust-proof structure for a slide device, characterized in that corners R are formed at corners between the bottom surface of each adapter groove and the side surfaces on both sides of each of the dust-proof adapters. In any one of Claims 1 to 3,
A dust-proof structure for a slide device, wherein a discharge hole for discharging the accumulated foreign matter is formed in at least one of the bottoms of the adapter grooves of the dust-proof adapter. In any one of Claims 1 thru | or 4,
A dust-proof structure for a slide device, wherein at least one of the side surfaces on both sides of each adapter groove of the dust-proof adapter is a tapered surface. In any one of Claims 1 thru | or 5,
When a fitting groove for fitting the upper end of the slider is formed on the slider-side surface of the fastening portion of the dust-proof adapter, and one side of the fitting groove is fixed to the slider when the dust-proof adapter is fixed A dust-proof structure for a slide device, characterized in that the reference surface of the slide device is used. In claim 6,
A dustproof structure for a slide device, wherein a distance between the other side surface of the fitting groove and the surface of the slider facing the side surface is 5 mm or less. In any one of Claims 1 thru | or 7,
A dustproof structure for a slide device, wherein a lower end of a side plate of the cover plate is positioned below an upper surface of the rail. In any one of Claims 1 thru | or 8,
A side cover installed on the base that extends between the slider and the slider-side surface of each sleeve of the dust-proof adapter and extends over the entire length of the rail; Dust-proof structure of the slide device. In a dust-proof adapter installed in a linear guide device including a rail and a slider supported on the rail so as to be linearly reciprocally movable,
A fastening portion fixed to the upper surface of the slider;
Sleeve portions provided at both ends of the fastening portion in the width direction orthogonal to the moving direction of the slider, and disposed on the sides of the slider;
A U-shaped adapter groove formed in the sleeve;
A stage provided on the outer wall between the adapter grooves on both sides and the outer side surface in the width direction of each of the sleeves, and is positioned above the upper surface of the slider and formed in parallel with the upper surface of the slider A dustproof adapter comprising a mounting surface. In claim 10,
A dustproof adapter, wherein a pin hole for fitting a mounting pin is formed in at least one place of each stage mounting surface. In claim 10 or claim 11,
A dust-proof adapter, wherein corners R are formed at corners between the bottom surface of each adapter groove and the side surfaces on both sides. In any one of claims 10 to 12,
A dustproof adapter, wherein a discharge hole for discharging accumulated foreign matter is formed in at least one location of the bottom of each adapter groove. In any one of Claims 10 to 13,
A dustproof adapter, wherein at least one of the side surfaces on both sides of each adapter groove is a tapered surface. In any one of Claims 10 to 14,
A fitting groove for fitting the upper end of the slider is formed on the slider-side surface of the fastening portion of the dustproof adapter, and one side surface of the fitting groove is a reference surface for fixing to the slider. Dust-proof adapter characterized by In claim 15,
A dustproof adapter characterized in that a distance between the other side surface of the fitting groove and the surface of the slider facing the side surface is 5 mm or less.