CN221221142U - Anti-creeping type crossed roller guide rail pair - Google Patents

Abstract

The utility model relates to an anti-creeping type crossed roller guide rail pair. The anti-creep cross roller guide rail pair comprises: the two movable guide rails and the two fixed guide rails are respectively provided with grooves for placing rollers, one sides of the two movable guide rails, provided with the grooves, face towards opposite arrangement, the side walls of the two movable guide rails are respectively provided with first racks, the two movable guide rails are fixedly connected to the workbench, the two fixed guide rails are arranged between the two movable guide rails, the grooves of the two fixed guide rails and the grooves of the two movable guide rails are respectively matched, the side walls of the two fixed guide rails are respectively provided with second racks, the two fixed guide rails are fixedly connected to the fixed base, the two retainers are respectively arranged between the movable guide rails and the fixed guide rails, the rollers which are arranged in a cross manner are arranged along the length direction of the retainers, and gears are arranged in the middle of the retainers; the gear is meshed with the first rack and the second rack simultaneously, the running precision is high, the peristaltic action is achieved, and noise is reduced.

Description

Anti-creeping type crossed roller guide rail pair

Technical Field

The utility model relates to the technical field of precise guide rails, in particular to an anti-creeping cross roller guide rail pair.

Background

At present, the traditional crossed roller guide rail pair consists of two guide rails with V-shaped tracks, rollers and a retainer, wherein a plurality of rollers are uniformly distributed on the retainer and are arranged in the middle of the parallel V-shaped tracks, and cylindrical rollers which are arranged in a mutually crossed manner do reciprocating motion on the V-shaped roller surfaces which are subjected to precise grinding. However, when in use, the retainer is easy to generate displacement under the action of unidirectional inertia, accumulated displacement of the retainer occurs, adjustment and correction are needed to be frequently performed to ensure normal use performance, the retainer can only be generally used on horizontal moving parts of automatic equipment, the application range is limited, and vibration and noise are easy to generate in a high-speed state, so that the use requirement of high-precision linear motion in the automatic industry is difficult to meet.

Regarding the above technical solution, the present inventors have found that at least some of the following technical problems exist:

The retainer is easy to generate displacement under the action of unidirectional inertia, the retainer is accumulated and displaced, the retainer is required to be frequently adjusted and corrected to ensure normal use performance, the retainer can only be generally used on horizontal moving parts of automatic equipment, vibration and noise are easy to generate in a high-speed state, and the use requirement of high-precision linear motion in the automatic industry is difficult to meet.

Accordingly, there is a need to improve one or more problems in the related art as described above.

It is noted that this section is intended to provide a background or context for the technical solutions of the utility model set forth in the claims. The description herein is not admitted to be prior art by inclusion in this section.

Disclosure of utility model

It is an object of embodiments of the present disclosure to provide an anti-creep cross roller rail pair, which overcomes one or more of the problems due to the limitations and disadvantages of the related art, at least to some extent.

The disclosed embodiments provide an anti-creep cross roller guide rail pair, comprising:

The two moving guide rails are provided with grooves for placing rollers, one sides of the two moving guide rails, provided with the grooves, face towards opposite arrangement, the side walls of the two moving guide rails are provided with first racks, and the two moving guide rails are fixedly connected to the workbench together;

The two fixed guide rails are provided with grooves for placing rollers, the two fixed guide rails are arranged between the two movable guide rails, the grooves of the two fixed guide rails and the grooves of the two movable guide rails are respectively matched, the side walls of the two fixed guide rails are provided with second racks, and the two fixed guide rails are fixedly connected to the fixed base together;

The two retainers are respectively arranged between the movable guide rail and the fixed guide rail; the retainer is provided with rollers which are arranged in a crossed manner along the length direction of the retainer, and the middle part of the retainer is provided with a gear;

Wherein the gear is simultaneously meshed with the first rack and the second rack.

In an embodiment of the disclosure, the workbench is in an inverted U shape, and the movable guide rails are respectively disposed at two inner sides of the workbench.

In an embodiment of the disclosure, the fixing base is convex, and the fixing guide rails are respectively disposed at two sides of the convex portion of the fixing base.

In one embodiment of the present disclosure, the retainer is provided with a pin and a pin hole, which are connected by a pin-to-pin connection.

In one embodiment of the disclosure, the cage is provided with rollers arranged in a crossed manner along the length direction of the cage.

In one embodiment of the present disclosure, the rollers are offset from each other by 90 ° between adjacent rollers in the installation direction.

In one embodiment of the present disclosure, the rollers are mounted in a direction that coincides with the direction of the spaced rollers.

In an embodiment of the disclosure, both ends of the fixed rail and the movable rail are provided with a limiting member.

In an embodiment of the disclosure, the limiting member is a blocking screw.

In an embodiment of the disclosure, the first rack and the second rack are both L-shaped, the first rack is fixedly mounted on the moving rail, and the second rack is fixedly mounted on the fixed rail.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

according to the embodiment of the disclosure, the first racks are arranged on the side walls of the two movable guide rails, the second racks are arranged on the side walls of the two fixed guide rails, the retainer is provided with the rollers which are arranged in a crossed mode along the length direction of the retainer, the middle of the retainer is provided with the gears, and the gears are simultaneously meshed with the first racks and the second racks. Prevent the retainer from moving to generate peristaltic motion, thereby reducing noise and improving operation precision.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

FIG. 1 illustrates a schematic diagram of an anti-creep cross roller rail pair in an exemplary embodiment of the present disclosure;

fig. 2 illustrates a schematic structural view of a moving rail in an exemplary embodiment of the present disclosure;

FIG. 3 illustrates a schematic structural view of a retainer in an exemplary embodiment of the present disclosure;

Fig. 4 illustrates a schematic structural view of a first rack in an exemplary embodiment of the present disclosure;

FIG. 5 illustrates a schematic diagram of a structure of a work table in an exemplary embodiment of the present disclosure;

Fig. 6 shows a schematic view of a fixing base structure in an exemplary embodiment of the present disclosure.

Reference numerals: 100. a work table; 200. a fixed base; 300. a moving guide rail; 301. a first rack; 302. a limiting piece; 400. a fixed guide rail; 401. a second rack; 500. a retainer; 501. a roller; 502. a gear.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of embodiments of the utility model and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

The present exemplary embodiment provides an anti-creep type cross roller guide rail pair which can be applied to occasions requiring high speed, high precision, high stability, such as robots, machining, automated assembly, and the like. One or more groups of anti-creep cross roller guide rail pairs provided by the embodiment can be selectively arranged in guide rail mechanisms of some mechanical equipment according to specific requirements so as to complete corresponding mechanical transmission.

In this example embodiment, an anti-creep cross roller rail pair is provided, and referring to fig. 1, the anti-creep cross roller rail pair may include: two moving rails 300, two fixed rails 400, and two holders 500.

Specifically, the two moving rails 300 are provided with grooves for placing the rollers 501, one sides of the two moving rails 300 provided with the grooves face to opposite directions, the side walls of the two moving rails 300 are provided with first racks 301, and the two moving rails 300 are fixedly connected to the workbench 100 together.

The two fixed guide rails 400 are respectively provided with a groove for placing the roller 501, the two fixed guide rails 400 are arranged between the two movable guide rails 300, the grooves of the two fixed guide rails 400 and the grooves of the two movable guide rails 300 are respectively matched, the side walls of the two fixed guide rails 400 are respectively provided with a second rack 401, and the two fixed guide rails 400 are fixedly connected to the fixed base 200 together.

The two retainers 500 are respectively disposed between the moving rail 300 and the fixed rail 400; the retainer 500 is provided with rollers 501 which are arranged in a crossed manner along the length direction of the retainer 500, and a gear 502 is arranged in the middle of the retainer 500.

In this exemplary embodiment, a gear 502 is disposed in the middle of the cage 500. The retainer 500 includes first skeleton and second skeleton, and the middle part of first skeleton and second skeleton sets up the gear installation position, the gear installation position sets up the shaft hole, the epaxial protruding installed part that has set up of gear 502, and when first skeleton and second skeleton were connected, gear 502 placed in the gear installation position, and epaxial protruding installed part of gear is connected with the shaft hole.

Wherein the gear 502 is simultaneously engaged with the first rack 301 and the second rack 401.

Through the anti-creeping type cross roller guide rail pair, on one hand, the gear 502 is meshed with the first rack 301 and the second rack 401 at the same time, so that the running precision is improved, the anti-creeping effect is achieved, and the noise is reduced; on the other hand, the rollers 501 which are arranged in a crossed way are arranged in the length direction of the retainer 500, so that the load bearing of the guide rail is improved; on the other hand, the guide rail pair can be used in a vertical state, and is stable in operation and easy to adjust.

In this example embodiment, an anti-creep type cross roller guide rail pair is provided, which can be applied to, for example, an automation device, an electronic machine, a medical device, an optical device, a precision intelligent device, a measurement device, and a precision instrument. One or more groups of anti-creep crossed roller guide rail pairs provided by the mechanism can be selectively arranged in the guide rail mechanisms of some mechanical equipment according to specific requirements so as to complete corresponding mechanical transmission.

The respective portions of the above-described one kind of anti-creep type cross roller guide rail pair in the present exemplary embodiment will be described in more detail with reference to fig. 1 to 6.

In one embodiment, the workbench 100 has an inverted U shape, and the two moving rails 300 are respectively disposed at two inner sides of the workbench 100. It should be appreciated that the two moving rails 300 are used for being fixedly connected to the workbench 100 together, and the fixed connection can be implemented by fastening screws, so that the mounting and dismounting are convenient, and the adjustment is easy. The side of the two moving rails 300 provided with the grooves is disposed toward the opposite direction to correspond to the grooves of the fixed rail 400 on the fixed base 200.

In one embodiment, the fixing base 200 is convex, and the two fixing rails 400 are disposed at both sides of the convex shape of the fixing base 200. It should be understood that the two fixing rails 400 are used for being fixedly connected to the fixing base 200 together, and the fixing connection can be implemented by fastening screws, so that the fixing rails are convenient to install and disassemble and easy to adjust. The height of the convex portion of the fixing base 200 is lower than the width of the grooved side of the fixing rail 400.

In one embodiment, the cage 500 is provided with pins and pin holes that are snap-fit. It should be understood that the retainer 500 is assembled by adopting a butt-buckling connection, so that the assembly is convenient, the self-locking can be realized after the assembly, the disconnection is difficult, and the roller is difficult to fall off. Through test, the cage 500 framework is made of nylon 66, has good mechanical strength, impact resistance and vibration resistance, can reduce noise, reduces mutual abrasion of steel columns, has excellent wear resistance and self-lubricating property, is lighter in running, and can prolong the service life. The holder may be made of other materials well known in the art, without limitation.

In one embodiment, the cage is provided with rollers arranged in a cross arrangement along the length of the cage as rollers. It is to be understood that the rollers can be steel balls or elliptic cylinders, and the selected rollers have higher stability and improve the operation precision. The rollers can be selected according to the needs of those skilled in the art.

In one embodiment, the rollers are offset from each other by 90 ° between adjacent rollers in the mounting direction. It should be understood that the rollers 501 are configured as rollers, and adjacent rollers of the cage 500 may be staggered with respect to each other in the installation direction to form an angle, which may be selected according to the needs of those skilled in the art, and is not limited herein.

In one embodiment, the rollers are mounted in a direction that coincides with the direction of the spaced rollers. It is understood that the accuracy of the guide rail can be improved, and the guide rail has better stability and reliability.

In one embodiment, the two ends of the fixed rail 400 and the moving rail 300 are provided with a limiting member 302. It should be appreciated that the stop 302 may act to stop the travel of the cage 500. When the moving rail 300 moves to one end of the fixed rail 400, the holder 500 also moves to one end of the fixed rail 400, and at this time, the holder 500 is restrained by the restraining member 302 of the fixed rail 400, and at the same time, the holder 500 is restrained by the restraining member 302 of the moving rail 300.

In one embodiment, the stop 302 is a stop screw. It is to be understood that the blocking head screw is simple in design, convenient to install and detach and easy to adjust. The selection of settings is not limited herein, as desired by those skilled in the art.

In one embodiment, the first rack 301 and the second rack 401 are both L-shaped, the first rack 301 is fixedly mounted on the moving rail 300, and the second rack 401 is fixedly mounted on the fixed rail 400. It should be understood that the materials of the first rack 301 and the second rack 401 may be metal materials such as steel, and the selected metal materials have long service life, good rigidity, and small noise caused by selecting plastic materials, and may be properly selected according to the needs of those skilled in the art, without limiting the selection of other materials by those skilled in the art of materials. The tooth surface of the first rack 301 and the tooth surface of the second rack 401 are the best effect of meshing on the same plane as the tooth surface of the gear 502. The first rack 301 is fixedly mounted on the moving rail 300, and the second rack 401 is fixedly mounted on the fixed rail 400, where the fixed mounting may be a fastening mounting, such as a screw, bolt, rivet, or the like, as is well known in the art. The gap between the first rack 301 and the second rack 401 and the gear 502 can be adjusted when the first rack 301 is fastened and installed, the disassembly is convenient, and other fixing methods well known in the art, such as adhesive bonding, welding, etc., can be used, so long as the first rack 301 can be fixedly installed on the moving rail 300, and the second rack 401 is fixedly installed on the fixed rail 400, which is not limited herein.

The working principle and the using flow of the utility model are as follows: in the use process of the device, when the workbench 100 drives the movable guide rails 300 through other mechanical power, as the two movable guide rails 300 are fixedly connected to the workbench 100 together, the first rack 301 fixedly connected with the movable guide rails 300 moves in meshing with the gear 502 of the retainer 500, and meanwhile, the gear 502 moves in meshing with the second rack 401 arranged on the fixed guide rail 400 connected with the fixed base 200, so that the retainer 500 is driven to move, the retainer 500 can relatively move with the movable guide rails 300 and the fixed guide rail 400, no peristaltic motion can occur, the operation precision is improved, and when the movable guide rails 300 do not move, the retainer 500 does not creep under the limit of the gear 502, and the noise is reduced.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the above description are directional or positional relationships as indicated based on the drawings, merely to facilitate description of embodiments of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting embodiments of the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In embodiments of the utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

Claims (10)

1. An anti-creep cross roller guide rail pair, comprising:

The two moving guide rails are provided with grooves for placing rollers, one sides of the two moving guide rails, which are provided with the grooves, are oppositely arranged, the side walls of the two moving guide rails are provided with first racks, and the two moving guide rails are fixedly connected to the workbench together;

The two fixed guide rails are provided with grooves for placing rollers, the two fixed guide rails are arranged between the two movable guide rails, the grooves of the two fixed guide rails and the grooves of the two movable guide rails are respectively matched, the side walls of the two fixed guide rails are provided with second racks, and the two fixed guide rails are fixedly connected to the fixed base together;

The two retainers are respectively arranged between the movable guide rail and the fixed guide rail; the retainer is provided with rollers which are arranged in a crossed manner along the length direction of the retainer, and the middle part of the retainer is provided with a gear;

Wherein the gear is simultaneously meshed with the first rack and the second rack.

2. The pair of anti-creep cross roller guide rails according to claim 1, wherein the work table is inverted U-shaped, and the moving guide rails are respectively provided at both inner sides of the work table.

3. The pair of anti-creep cross roller guide rails according to claim 1, wherein the fixing base is convex, and the fixing guide rails are disposed on both sides of the convex portion of the fixing base, respectively.

4. The anti-creep cross roller rail pair of claim 1, wherein the cage is provided with a pin and a pin hole, the pin and the pin hole being in a snap-fit connection.

5. The pair of anti-creep crossed roller guide rails according to claim 1, wherein the cage is provided with crossed rollers along the length of the cage.

6. The pair of anti-creep cross-roller rails of claim 5 wherein the rollers are offset from each other by 90 ° between adjacent rollers in the mounting direction.

7. The pair of anti-creep cross-roller rails of claim 5 wherein the rollers are mounted in a direction that is aligned with the direction of the spaced rollers.

8. The pair of anti-creep cross roller guide rails according to claim 1, wherein both ends of the fixed guide rail and the moving guide rail are provided with stoppers.

9. The anti-creep cross roller guide rail pair of claim 8, wherein the stop is a stop screw.

10. The anti-creep cross roller guide rail pair of claim 1, wherein the first rack and the second rack are both L-shaped, the first rack is fixedly mounted on the moving guide rail, and the second rack is fixedly mounted on the fixed guide rail.