CN108468714A - Skid composite guide rails - Google Patents

Abstract

The invention provides a rolling-sliding composite guide rail, which relates to the technical field of mechanical devices. The rolling-sliding composite guide rail includes a sliding rail, a sliding block and a plurality of rolling bodies, and the sliding block is arranged on the sliding rail; two opposite sides of the sliding rail The first chute is respectively arranged on the two inner walls of the slider, and the second chute is respectively arranged on the two inner walls of the slider, and the second chute is opposite to the corresponding first chute; each second chute is respectively provided with a plurality of rolling elements , the rolling body is in rolling contact with the corresponding first chute; it also includes a soft belt of the guide rail fixed on the inner side of the slider, and the soft belt of the guide rail is in sliding contact with the slide rail. The rolling-sliding composite guide rail not only alleviates the problem of poor positioning accuracy of the sliding guide rail, which is prone to crawling at low speeds, but also alleviates the problems of poor rigidity and vibration resistance of the rolling guide rail.

Description

Rolling composite guide rail

technical field

The invention relates to the technical field of mechanical devices, in particular to a rolling-sliding composite guide rail.

Background technique

A guide rail is a device that can bear, guide a mobile device or equipment and reduce its friction, and plays a pivotal role in the mechanical field.

In the prior art, sliding guide rails and rolling guide rails are the most widely used guide rails, but both of them have obvious shortcomings, that is, the positioning accuracy of sliding guide rails is poor, and it is easy to produce crawling phenomenon when running at low speed; the stiffness and resistance of rolling guide rails Vibration is poor.

Therefore, it is urgent to design a new guide rail to improve the above technical problems.

Contents of the invention

The purpose of the present invention is to provide a rolling-sliding composite guide rail to alleviate the poor positioning accuracy of the sliding guide rail in the prior art, and it is easy to produce crawling phenomenon when running at low speed, and the technology of poor rigidity and vibration resistance of the rolling guide rail question.

The rolling-sliding composite guide rail provided by the present invention includes a slide rail, a slider and a plurality of rolling elements, the slider is arranged on the slide rail; first slide grooves are respectively arranged on two opposite sides of the slide rail, The two inner walls of the slider are respectively provided with a second chute, and the second chute is directly opposite to the corresponding first chute; each of the second chute is respectively provided with a plurality of the rolling body, the rolling body is in rolling contact with the corresponding first chute;

It also includes a soft belt of the guide rail fixed on the inside of the slider, and the soft belt of the guide rail is in sliding contact with the slide rail.

Further, the soft belt of the guide rail is fixed on the lower surface of the slider and is in sliding contact with the upper surface of the slide rail.

Further, the soft belt of the guide rail is pasted on the lower surface of the slider.

Further, the flexible guide rail is a soft polytetrafluoroethylene guide rail.

Further, the rolling elements are balls.

Further, a positioning plate is fixed on both inner walls of the slider, and the positioning plate is directly opposite to the corresponding second chute;

The positioning plate is provided with limiting holes for limiting the position of each of the rolling elements, and the rolling elements are arranged between the positioning plate and the second chute, and protrude from the corresponding limiting holes. hole.

Further, both ends of the positioning plate along the length direction are provided with positioning parts, and a plurality of flat-end fastening screws are fixed on the slider, and the flat-end fastening screws correspond to the positioning parts one by one. To limit the position of the corresponding positioning part; there is a gap between the positioning plate and the corresponding inner wall of the slider.

Further, at least one slider limiter is provided at both ends of the slide rail along the length direction.

Further, the cross-sectional shape of the first chute is an isosceles trapezoid.

Further, the cross-sectional shape of the second chute is an isosceles trapezoid.

Compared with the prior art, the rolling-sliding composite guide rail provided by the present invention has the following beneficial effects:

The rolling-sliding compound guide rail provided by the present invention comprises a slide rail, a slider and a plurality of rolling bodies, the slider is arranged on the slide rail; first slide grooves are respectively arranged on the two opposite sides of the slide rail, and the two inner walls of the slider The second chute is respectively provided, and the second chute is directly opposite to the corresponding first chute; each second chute is respectively provided with a plurality of rolling bodies, and the rolling bodies are in rolling contact with the corresponding first chute; The soft belt of the guide rail is fixed on the inside of the slider, and the soft belt of the guide rail is in sliding contact with the slide rail. The rolling-sliding composite guide rail provided by the present invention has both a sliding pair and a rolling pair. The rolling pair and the sliding pair work at the same time. The sliding pair can increase damping, improve vibration resistance, rigidity and bearing capacity, and the rolling pair can improve the positioning accuracy of the guide rail. Make the guide rail less prone to crawling when moving at low speed. Therefore, the rolling-sliding composite guide rail provided by the present invention combines the advantages of the sliding guide rail and the rolling guide rail, which not only alleviates the problem of poor positioning accuracy of the sliding guide rail and is prone to crawling at low speeds, but also alleviates the stiffness and vibration resistance of the rolling guide rail. problem of poor sex.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is a schematic diagram of the overall structure of the sliding composite guide rail provided by the embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a slider provided by an embodiment of the present invention;

Fig. 3 is an exploded view of the slider shown in Fig. 2, etc.;

Fig. 4 is a schematic diagram of the installation of the sliding rail and the slider limiter in the rolling-sliding composite guide rail provided by the embodiment of the present invention.

Icons: 1 - slide rail; 2 - slider; 3 - rolling body; 4 - soft belt of guide rail; 5 - positioning plate; 6 - flat end set screw; 21-the second chute; 51-positioning part.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

As shown in FIG. 1 , the rolling-sliding composite guide rail provided in this embodiment includes a sliding rail 1 , a sliding block 2 and a plurality of rolling elements 3 , and the sliding block 2 is arranged on the sliding rail 1 . The two opposite sides of the slide rail 1 are respectively provided with first slide grooves 11 , and the two inner walls of the slider 2 are respectively provided with second slide grooves 21 , and the second slide grooves 21 are opposite to the corresponding first slide grooves 11 . A plurality of rolling elements 3 are arranged in each second sliding groove 21 , and the rolling elements 3 are in rolling contact with the corresponding first sliding grooves 11 . The rolling-sliding composite guide rail provided in this embodiment further includes a guide rail soft belt 4 fixed on the inner side of the slider 2 , and the guide rail soft belt 4 is in sliding contact with the slide rail 1 .

The rolling-sliding composite guide rail provided in this embodiment has both a sliding pair and a rolling pair, and the rolling pair and the sliding pair work at the same time. The sliding pair can increase damping, improve vibration resistance, stiffness and bearing capacity, and the rolling pair can improve the positioning accuracy of the guide rail. At the same time, the guide rail is not easy to crawl when moving at low speed. Therefore, the rolling-sliding composite guide rail provided by this embodiment has both the advantages of the sliding guide rail and the rolling guide rail, which not only alleviates the problem of poor positioning accuracy of the sliding guide rail and is prone to crawling at low speeds, but also alleviates the stiffness and resistance of the rolling guide rail. The problem of poor vibration.

The rolling contact between the rolling body 3 and the corresponding first chute 11 means that the rolling body 3 is in contact with the corresponding first chute 11 and can roll relative to the first chute 11; the soft belt 4 of the guide rail is in sliding contact with the slide rail 1, It is to guide the soft belt 4 of the rail to be in contact with the slide rail 1 and to be able to slide relative to the slide rail 1 .

The two opposite sides of the slide rail 1 are respectively provided with first slide grooves 11. Those skilled in the art should know that the two sides of the slide rail 1 mentioned here refer to the two sides adjacent to the top surface of the slide rail 1. It can be known that the length direction of the first chute 11 and the length direction of the second chute 21 are parallel to the length of the slide rail 1 .

Further, the first slide grooves 11 on two opposite sides of the slide rail 1 are arranged parallel and facing each other, and the second slide grooves 21 on the two inner walls of the slider 2 are arranged parallel and facing each other.

As shown in FIGS. 1-3 , the slider 2 may have a concave-shaped structure.

It should be noted that the inner side of the slider 2 mentioned in this embodiment refers to the side where the slider 2 is in contact with the slide rail 1 .

As shown in FIGS. 1-3 , in this embodiment, the soft belt 4 of the guide rail can be fixed on the lower surface of the slider 2 and be in sliding contact with the upper surface of the slide rail 1 .

The guide rail soft belt 4 is fixed on the lower surface of the slider 2, so that the assembly and maintenance of the rolling-sliding composite guide rail are simpler and more convenient.

In this embodiment, the soft belt 4 of the guide rail can be pasted on the lower surface of the slider 2 .

Further, guide rail glue is used to bond between the guide rail soft belt 4 and the slider 2 .

In this embodiment, the soft guide rail 4 can be a soft polytetrafluoroethylene guide rail.

The guide rail soft belt 4 is a polytetrafluoroethylene guide rail soft belt, which can reduce the friction coefficient of the sliding pair and improve the wear resistance and self-lubricating performance of the guide rail soft belt 4 .

In this embodiment, the rolling elements 3 may be balls.

Further, the balls can be bearing steel balls (also called bearing steel balls); the number of balls can be adjusted according to actual needs.

As shown in FIGS. 1-3 , in this embodiment, a positioning plate 5 can be fixed on both inner walls of the slider 2 , and the positioning plate 5 is directly opposite to the corresponding second chute 21 .

The positioning plate 5 is provided with limiting holes for limiting the position of each rolling element 3 , and the rolling elements 3 are arranged between the positioning plate 5 and the second slide groove 21 and protrude from the corresponding limiting holes.

Specifically, the limiting holes on the same positioning plate 5 can be arranged at equal intervals; the thickness of the positioning plate 5 can be set according to actual conditions.

In this embodiment, both ends of the positioning plate 5 along the length direction can be provided with positioning parts 51, and a plurality of flat-end set screws 6 are fixed on the slider 2, and the flat-end set screws 6 correspond to the positioning parts 51 one by one. It is used to limit the position of the corresponding positioning part 51 ; there is a gap between the positioning plate 5 and the corresponding inner wall of the slider 2 .

There is a gap between the positioning plate 5 and the corresponding inner wall of the slider 2, which can reduce unnecessary friction and make the resistance of the slider 2 smaller.

Specifically, the positioning part 51 can be a card slot; two threaded through holes are arranged at intervals on the same side wall of the slider 2, and two flat end set screws 6 are respectively arranged in the corresponding threaded through holes, and pass through the slider The side walls of 2 are clamped in the corresponding slots to fix the positioning plate 5 . The positioning plate 5 can determine the relative position of each rolling body 3 .

In this embodiment, the balls are used as the rolling pair, the positioning plate 5 is used to determine the relative position between the balls, and the flat end set screw 6 is used to position the positioning plate 5 .

As shown in FIG. 4 , in this embodiment, at least one slider stopper 7 may be provided at both ends of the slide rail 1 along the length direction.

Both ends of the slide rail 1 along the length direction are respectively provided with at least one slider limiter 7 , which can prevent the slider 2 from breaking away from the slide rail 1 due to excessive travel.

At least one slider stopper 7 is provided at both ends of the slide rail 1 along the length direction, specifically, a slider stopper 7 may be provided at both ends of one of the first chute 11; At the first end of the slide rail 1, a slider limiter 7 is set in one of the first chute 11, and at the second end of the slide rail 1, a slider is set in the other first chute 11 Limiting member 7; it can also be that a slider limiting member 7 is respectively arranged in two first slide grooves 11 at the first end of slide rail 1, and at the second end of slide rail 1, two first slide grooves 11 is also respectively provided with a slider limiter 7. During the last case, the two slider stoppers 7 at the same end of the slide rail 1 are facing each other.

Further, the slider limiter 7 may be a set screw.

In this embodiment, the cross-sectional shape of the first chute 11 may be an isosceles trapezoid.

The cross-sectional shape of the first chute 11 is an isosceles trapezoid, which is more convenient for the processing of the slide rail 1 .

In this embodiment, the cross-sectional shape of the second chute 21 may be an isosceles trapezoid.

The cross-sectional shape of the second chute 21 is an isosceles trapezoid, which is more convenient for the processing of the slider 2 .

From the above, it can be seen that the rolling-sliding composite guide rail provided by this embodiment is not only convenient to process and easy to perform, but also standard parts are used for the connecting parts, which are easy to replace and low in cost.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. a kind of skid composite guide rails, which is characterized in that including sliding rail (1), sliding block (2) and multiple rolling elements (3), the sliding block (2) it is set on the sliding rail (1)；The sliding rail (1) is respectively arranged with the first sliding groove (11) on two opposite sides, described Second sliding slot (21), the second sliding slot (21) and the corresponding the first sliding groove are respectively arranged on two inner walls of sliding block (2) (11) face；Be respectively arranged with multiple rolling elements (3) in each second sliding slot (21), the rolling element (3) with it is corresponding The first sliding groove (11) be in rolling contact；

Further include the guide-soft-band (4) being fixedly arranged on the inside of the sliding block (2), the guide-soft-band (4) is slided with the sliding rail (1) Contact.

2. skid composite guide rails according to claim 1, which is characterized in that the guide-soft-band (4) is fixedly arranged on the cunning The lower surface of block (2), and contacted with the upper surface slide of the sliding rail (1).

3. skid composite guide rails according to claim 2, which is characterized in that the guide-soft-band (4) is pasted on the cunning The lower surface of block (2).

4. skid composite guide rails according to claim 1, which is characterized in that the guide-soft-band (4) is polytetrafluoroethylene (PTFE) Guide-soft-band.

5. skid composite guide rails according to claim 1, which is characterized in that the rolling element (3) is ball.

6. skid composite guide rails according to claim 1, which is characterized in that fixed on two inner walls of the sliding block (2) There are positioning plate (5), the positioning plate (5) and corresponding second sliding slot (21) face；

It is provided on the positioning plate (5) for the limit hole for each rolling element (3) limit, rolling element (3) setting Between the positioning plate (5) and the second sliding slot (21), and protrude the corresponding limit hole.

7. skid composite guide rails according to claim 6, which is characterized in that the positioning plate (5) along its length two End is both provided with positioning region (51), and multiple flush end holding screws (6), the flush end holding screw are installed on the sliding block (2) (6) it is corresponded with the positioning region (51), for being limited for the corresponding positioning region (51)；The positioning plate (5) and institute State between the respective inner walls of sliding block (2) that there are gaps.

8. according to claim 1-7 any one of them skid composite guide rails, which is characterized in that the sliding rail (1) is along length side To both ends be each provided at least one sliding block locating part (7).

9. according to claim 1-7 any one of them skid composite guide rails, which is characterized in that the first sliding groove (11) Cross sectional shape is isosceles trapezoid.

10. according to claim 1-7 any one of them skid composite guide rails, which is characterized in that the second sliding slot (21) Cross sectional shape is isosceles trapezoid.