JP4036855B2 - Roller type linear guideway - Google Patents

Description

The present invention relates to a roller-type linear guideway, and the linear guideway is generally applied to precision-controlled linear transmission and is used for robots, industrial machines, automated equipment, measuring devices, electronic equipment, etc. The present invention relates to a roller-type linear guideway that is applied to locations where heavy loads are applied and has the effect of improving the rigidity and accuracy of equipment.

The linear guide way includes a rail having a rolling surface for rolling the rolling body, a slider that fits on the rail and moves, and a plurality of rolling bodies that roll between the rail and the slider.
When the rolling body of the linear guide way is a roller, this is called a roller type linear guide way.

A rolling body circulation system of a roller type linear guideway generally includes a rolling body holder, a circulation path, a circulation diverter, and the like.
The configuration method can be divided into a method in which independent parts are combined and a method in which injection molding is integrally performed.

Japanese Laid-Open Patent Publication No. 2002-54633 proposes that the rolling body circulation system is configured by combining independent components.
The rolling body holders 11, 12, 13, the circulation path 14, and the circulation diverter (configured by combining 15 a and 15 b) are separate and independent parts, and these parts are integrated with the slider body 4. Since it is not formed into a shape but is assembled to the slider body 4, the number of points is too large and the combination is extremely troublesome.

Japanese Laid-Open Patent Publication No. 7-317762 proposes that the rolling body circulation system is integrally formed by injection molding.
That is, the slider body 13 is a part of the resin injection molding mold, and a rolling body support member (composed of a combination of parts 30, 31 and 32), the circulation path 10, and the circulation diverters 16 and 19. And injection molding directly.
When the slider body in this manner is of great dimensions, M o field also becomes necessary to use a large size, and therefore a higher demand for injection molding accuracy, higher difficulty level.
Therefore, in order to fit closely with injection M o field, the slider demand for dimensional tolerances of the body is higher, and since long walls thin support member, hard molding.

The main purpose of the present invention, by reducing the number of parts, and can reduce the time of the union operation, management costs can be reduced, and the lower down Rukoto the difficulty of injection molding techniques, reduce manufacturing costs and to provide a Ru can roller linear guideway.

In order to achieve the above object, the first invention of the present application is a roller type linear guideway comprising a rail, a slider body, a roller module, a circulation module, and an end plate. A long member having four rolling surfaces, the slider body has four circulation holes and four rolling surfaces, can be fitted to the rail and moved, and the roller module has a plurality of The circulation module is composed of two half-circulation pieces that are substantially U-shaped, and the half-circulation piece comprises a turning block, a support strip, and a circulating half-cut tube. preparative has been integrally molded, one-half circulation module formed by combining two of the half circular piece, the half circulation module, two It is constituted by a serial turning block and turning section having an inner deflection path and the outer turning path is constituted by two of the support strip, configured with a support portion having a circumfluence space, by two of the circumfluence half cut tube, circumfluence and a swirling flow section having a space is inserted from two end surfaces of the slider body and formed a predetermined angle to each other two of said half circulation module, located circumfluence hole of the slider body a circumfluence of each half circulation module In addition, the support portion of each half circulation module is positioned between both rolling surfaces of the rail and the slider body to constitute the circulation module, and a plurality of fixing protrusions provided on the outer surface of the circulation portion of the half circulation module are provided on the slider body. positioning is brought into contact with the said circulating module having a circulation rolling path of two rows the roller module roll, the circulation motor The inner turning path of the turning part in one half circulation module of the module is connected to the support part and the circulation part of the half circulation module and to the outer turning path of the turning part in the other half circulation module. Accordingly, the configuration circulation rolling path of a row, the roller module rolling the circulation rolling path, rolling and and turning so as to cross the X-shaped in the turning section,
The end plate is provided on two end faces of the slider body, and a turning curved surface provided on the end plate matches an outer turning path in the circulation module, so that the roller passes when passing through the outer turning path. The gist of the present invention is a roller type linear guideway characterized in that the module does not separate outward.

In the second aspect of the invention, the predetermined angle of the two halves circulating module forms together before Symbol circulation module are summarized as 90 degrees der Turkey.

With the third aspect of the invention, the the turning portion of the front Symbol half circulation module and the support portion and the swirling flow portion, a groove for guiding the spacing element of the roller module is provided along the path rolling circulation, the roller module and a plurality of rollers, and a spacing element for spacing the rollers, the spacing element is constituted by a gap portion and the chain-like guide chain, Oh provided with a groove before Symbol delivery chain Turkey The gist of the invention is the roller linear guideway according to the first invention.

In the fourth invention of the present application, a groove for guiding a spacing element of the roller module is provided in the turning portion, the support portion, and the circulating portion of the half circulation module along the circulation rolling path. module includes a plurality of rollers, and a spacing element for spacing the rollers, the spacing element is a single structure composed of a guide plug and the spacing portion, exchange the spacing element and the roller each other is summarized in that distribution, characterized in that the column is a roller type linear guideway according to the first invention.

According to the roller type linear guideway according to the present invention, the number of parts can be reduced, the time required for the combination work can be reduced, the management cost can be reduced, and the manufacturing cost can be reduced by reducing the difficulty of the injection molding technique. it is possible to reduce the.

  Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is an exploded perspective view of a roller type linear guideway according to the present invention, and FIG. 2 is a schematic side view showing a state in which an end plate of the roller type linear guideway according to the present invention is removed.

The roller type linear guideway according to the present invention includes a long rail 10 having four rolling surfaces 11 and 12, a slider body 20 having four circulation holes 21 and 22 and four rolling surfaces 23 and 24, and a half circulation module. 30, an end plate 40, a roller module 50 composed of a plurality of rollers, a dustproof piece 60, a scraper 70, and the like.
The slider body 20 is movable fitted to the rail 10.
Rolling surfaces 11 and 12 of the rolling surface 24 and 23 and the rail 10 of the slider body 20 each other facing, so as to place the roller module 50 of one row therebetween, circumfluence half circulation module 30 from the end face of the slider body 20 hole 21 , 22 .
The end plates 40 are separately installed on the two end faces of the slider body 20.
By mounting the dust-proof strip in the gap below the slider body 20, Ru can be prevented dirt from entering.
By separately installing the scraper 70 on the outside of the end plate 40, dust adhering to the rail 10 can be removed and entry into the slider body 20 can be prevented.

3 is an exploded perspective view of a half-circulation module according to the present invention, FIG. 4 is a schematic view showing a method of combining two half-circulation modules of the present invention, and FIG. 5 is a partially enlarged schematic view of FIG. It is.
As apparent from the drawing, half the circulating module 30 two halves circulating piece substantially exhibits U type 30a, Ru consists What if is set to 30b.
The half circulation pieces 30a and 30b are formed by integrally forming turning blocks 33a and 33b, support strips 31a and 31b, and circulating half-cut pipes 32a and 32b.
The half circular piece 30a, as turning block 33a is connected to the smaller support strip 31a and circumfluence half cutting tube 32a, Ru formed integrally with the one that exhibits a substantially U-shaped.
The half circulation piece 30b is integrally formed into a substantially U-shaped one so that the turning block 33b is connected to the larger support strip 31b and the circulation half cut tube 32b.
The turning block 33a, 33b has an inner deflection surface 333b and the inner turning 332a, groove 322 for guiding the roller module (not shown) Ru Oh provided along the path rolling circulation.
The groove 322 has a width larger than 1/3 of the diameter of the roller, is provided with an oil-filled groove 34b and oil discharge grooves 341b, 342b, and turning blocks 33a, 33b of the support strips 31a, 31b. Fixing plugs 311a and 311b are provided at one end not connected.
Localization stopper 321b, two halves circulating piece 30a by the 331b and locating hole (not shown), after binding the 30b, the support strip 31a, constitutes a support portion 31 by 31b, circumfluence half cutting tube 32a, by 32b circumfluence The part 32 is comprised, and the turning part 33 is comprised by the turning blocks 33a and 33b .
The outer surface of the whirling unit 32, fixing protrusion 35a that fits closely with the circumfluence holes 21 and 22 of the slider body 20 Ru Oh provided in a plurality. The fixing protrusion 35a exerts localization effect.
Inside the circumfluence portion 32 circumfluence space 323 is formed, the roller module (not shown) Ru can be swirling flow in the swirling flow space 323.
Turning section 33, that Yusuke inner turning path constructed from the inner deflection surface 333b (not shown), and an outer turning path 332 is composed of an outer deflection surface 332a.
The turning portion 33 has an oil inlet 34 composed of an oil-filled groove, an outer oil outlet 341 composed of an oil drain groove 341b, and an inner oil outlet (not shown) composed of an oil drain groove 342b. To do.
When the lubricating oil enters from the oil inlet 34, the outer oil outlet 341 causes the lubricating oil to flow through the inner and outer turning paths to lubricate the roller module.
On the other hand, two halves circulating module 30, forms a predetermined angle of 90 degrees from each other, a complete circulation module by inserting the two end faces of the slider main body 20 in FIG. 1.

6 is a perspective view showing a complete circulation module constructed by combining the members in FIG. 4, FIG. 7 is a cross-sectional view taken along line AA in FIG. 6, and FIG. 8 is a cross-sectional view taken along line BB in FIG. FIG. 9 is a cross-sectional view taken along line CC in FIG.
Figure 8 is a sectional view of the interior of the circulating module, roller module 50 includes a plurality of rollers, Ru der those composed of a spacing element of the chain-like structure.
Circulating module has a circulating rolling path of two rows, the roller module 50 is Ru can roll the circulation rolling path.
Roller module 50 is Ru installed tare the circulation rolling path of a row of them.
The roller module 50 is not installed in the circulation rolling path of the other row.
Its circumfluence space 323 Ru consists half cutting tube 32a, 32b circumfluence. Rolling space 312 supporting strip 31a, Ru consists 31b. The groove 322 can guide a spacing element (not shown) of the roller module 50.
7 via the right of the inner turning path of the circulating module (not shown), although turning from the load state (or whirling state) circumfluence state (or load state), the roller module 50 is not installed circulated The rolling path turns from the other half circulation module via the outer turning path 322 on the right side of the circulation module .
Thus, the two rows of circular rolling paths intersect at the turning portion 33 like an X shape, and the roller module 50 intersects and turns like an X shape at the turning portion of the circulating rolling path.
FIG. 9 is a cross-sectional view of the turning portion on the left side of the circulation module, and the difference is that the circulation rolling path not installed by the roller module 50 passes through the inner turning path (not shown) on the left side of the circulation module, and the load From the state (or the circulating state) to the circulating state (or the loaded state), the circulating rolling path in which the roller module 50 is installed passes from the other half circulating module via the outer turning path 322 on the left side of the circulating module. Turn around.
Thus, the two rows of circular rolling paths intersect at the turning portion 33 like an X shape, and the roller module 50 intersects and turns like an X shape at the turning portion of the circulating rolling path.

FIG. 10 is a front view of the inside of the end plate in FIG.
The end plate 40 is attached to the two end faces of the slider body 20 in FIG. 1, and the turning curved surface 47 provided on the end plate 40 fits the outer turning path 332 in the half circulation module 30 in FIG. When passing through the turning path 332, the roller module 50 does not separate outward.
Further, fixing holes 43 and 44 for fixing the support strips 31a and 31b by fitting with the fixing plugs 311a and 311b are provided on the end plate 40, and the circulation part 32 of the half circulation module 30 is provided. A groove 46 for fitting is provided.
In order to exhibit the lubricating effect, the end plate 40, Oh Ru oiling hole 41 communicating with both sides of the oil path 42 is provided.
The end of the oil path 42 is Ru Ah provided oil grooves 45 to fit the oil inlet 34 at the turning portion 33 of the half circulation module 30.
Thus, after the inflows to the oil grooves 45 on either side lubricating oil through the oil path 42 is injected from the oil feed hole 41, it enters the oil inlet 34 of the half circular module 30, the roller module (Fig. Lubricate (not shown).

FIG. 11 is a schematic view of another embodiment of the roller module according to the present invention, and FIG. 12 is a schematic view of another embodiment of the spacing element in FIG.
Laura module 50, including a roller 51, and a spacing element (52 or 53).
The roller 51 is Ru is separated intervals by spacing elements (52 or 53).
The spacing element 52 is Ru chained configuration der composed of a distance portion 521 guides the chain 522.
Roller 51 is away septum to the spacing portion 521, has a chain-like configuration the delivery chain 522 connects the gap 521. Since the guide chain 522 is provided with a groove 523, turning is smooth.
Spacing elements 53 of another embodiment is a single structure composed of a distance portion 531 guides the plug 532, the roller 51 is released septum by arranging the interlaced with roller 51.

It is a disassembled perspective view of the roller type linear guideway which concerns on this invention. It is the side schematic diagram which shows the state which removed the end plate of the roller-type linear guideway which concerns on this invention. It is a disassembled perspective view of the half circulation module which concerns on this invention. It is the schematic which shows the combination method of the two half circulation modules of this invention. FIG. 5 is a partial enlarged schematic view of FIG. 4. It is a perspective view which shows the complete circulation module comprised combining the member in FIG. It is the sectional view on the AA line in FIG. It is the BB sectional view taken on the line in FIG. It is CC sectional view taken on the line in FIG. It is a front view inside the end plate in FIG. FIG. 6 is a schematic view of another embodiment of a roller module according to the present invention. It is the schematic of the other Example of the space | interval element in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Rail 11 Rolling surface 12 Rolling surface 20 Slider main body 21 Flow hole 22 Flow hole 23 Rolling surface 24 Rolling surface 30 Half circulation module 30a Half circulation piece 30b Half circulation piece 31 Support part 31a Support strip 31b Support strip 311a Fixed plug 311b Fixed plug 312 Rolling space 32 Rotating part 32a Rotating half-cut pipe 32b Rotating half-cut pipe 321b Steering plug 322 Groove 323 Rotating space 33 Turning part 33a Turning block 33b Turning block 331b Steering stopper 332 Outer turning path 332a Outer turning surface 333b Inner turning surface 34 Oil Inlet 34b Oil-filled groove 341 Outer oil outlet 341b Oil-out groove 342b Oil-out groove 35a Fixed protrusion 40 End plate 41 Oil hole 42 Oil path 43 Fixed hole 44 Fixed hole 45 Oil groove 46 Matching groove 47 Turning curved surface 50 Roller mode Joule 51 Roller 52 Spacing element 531 Spacing section 532 Guide plug 60 Dustproof piece 70 Scraper

Claims (4)

In a roller type linear guideway composed of a rail, slider body, roller module, circulation module, and end plate,
The rail is a long member having four rolling surfaces,
The slider body has four circulation holes and four rolling surfaces, can be fitted and moved on the rail,
The roller module is composed of a plurality of rollers,
The circulation module is composed of two half-circulation pieces that are substantially U-shaped,
The half circulation piece is formed by integrally forming a turning block, a supporting strip, and a circulating half-cut pipe.
One half circulation module formed by combining two of the half circular piece,
The half circulation module includes two turning blocks, and includes a turning portion having an inner turning path and an outer turning path , two support strips, a support portion having a circulation space, and two the circulation flows. Comprising a half-cut pipe and a circulation portion having a circulation space ;
Insert the two end faces of the slider main body by forming a predetermined angle to each other two of said half circulation module, the circumfluence of each half circulating module with is positioned circumfluence hole of the slider body, the support of each half circulation module The circulation module is constructed by positioning the part between the rolling surfaces of the rail and the slider body ,
A plurality of fixed projections provided on the outer surface of the circulation portion of the half circulation module are positioned in contact with the slider body,
The circulation module has two rows of circulation rolling paths on which the roller module rolls ,
The inner turning path of the turning part in one half circulation module of the circulation module is connected to the support part and the circulation part of the half circulation module, and is connected to the outer turning path of the turning part in the other half circulation module. By doing so, a circulation rolling path of one row is formed,
The roller module rolling the circulation rolling path, the rolling and turning and so as to cross the X-shaped in the turning section,
The end plate is provided on two end faces of the slider body, and a turning curved surface provided on the end plate matches an outer turning path in the circulation module, so that the roller passes when passing through the outer turning path.・ The module is not separated from the outside,
Roller type linear guideway. The predetermined angle at which the two halves circulating module forms together circulating module is characterized by a 90-degree der Turkey, roller linear guideway of claim 1. The turning portion, the support portion, and the circulation portion of the half circulation module are provided with grooves for guiding the spacing elements of the roller module along the circulation rolling path, and the roller module includes a plurality of rollers. , and a spacing element for spacing the rollers, the spacing element of said is composed of the spacing portion and the chain-like guide chain, characterized by a groove provided Oh Turkey before Symbol delivery chain, claim 2. A roller type linear guideway according to 1. The turning portion, the support portion, and the circulation portion of the half circulation module are provided with grooves for guiding the spacing elements of the roller module along the circulation rolling path, and the roller module includes a plurality of rollers. , and a spacing element for spacing the rollers, the spacing element of said is a single structure composed of a guide plug and the spacing portion, characterized in that array the spacing element and the roller exchange each other The roller-type linear guideway according to claim 1 .

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