High-precision rolling linear guide rail pair structure

Abstract

The utility model provides a kind of high-precision rolling linear guide rail pair structure, comprising: guide rail and slider assembly on guide rail, slider assembly can move along the axial direction of guide rail;Wherein slider assembly includes slider body, raceway block, steel ball, end cap and the like parts;Wherein raceway block is installed in slider body inside, end cap is installed in slider body both ends, steel ball is arranged on the circular arc raceway formed by raceway block, guide rail raceway and end cap, so that slider assembly and guide rail are contacted by steel ball.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically to a high-precision rolling linear guide pair structure. Background Technology

[0002] Rolling linear guide pairs are one of the core components of high-end CNC machine tools such as industrial machine tools. The precision, noise, and rigidity of rolling linear guide pairs are key technical concerns in the industry. However, existing rolling linear guide pairs have their own arc raceways on the slider body, resulting in large deformation during quenching, poor positional accuracy, and relatively high running accuracy and noise after assembly, as well as slightly inferior rigidity.

[0003] Therefore, a high-precision rolling linear guide pair structure needs to be designed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the above-mentioned defects in the existing technology by providing a high-precision rolling linear guide pair structure. The accuracy and rigidity of the guide pair are improved by rearranging the slider and guide rail raceway. The original inner arc rolling raceway of the slider is separated from the slider body into two parts, which solves the problem of slider quenching deformation and improves the positional accuracy of the parts.

[0005] This utility model provides a high-precision rolling linear guide pair structure, including: a guide rail and a slider assembly located on the guide rail, the slider assembly being movable along the axial direction of the guide rail; wherein the slider assembly includes a slider body, a raceway block, steel balls, and an end cap; wherein the raceway block is installed inside the slider body, the end cap is installed at both ends of the slider body, and the steel balls are arranged on the arc raceway formed by the raceway block, the guide rail raceway, and the end cap, so that the slider assembly and the guide rail are in contact through the steel balls.

[0006] Preferably, the slider body has a V-shaped cavity inside, and the slider body and the raceway block make contact with each other at a 90-degree V-shaped surface.

[0007] Preferably, the guide rail has four rows of circular arc raceways, which are symmetrically arranged in pairs on both sides of the guide rail. The four rows of circular arc raceways are arranged in an O-shape, and the guide rail has a structure that is narrower at the top and wider at the bottom.

[0008] This invention provides a high-precision rolling linear guide pair structure. The rigidity of the guide pair is improved by rearranging the guide raceway, and high precision and low noise are achieved by optimizing the internal structure of the slider assembly. Attached Figure Description

[0009] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of a high-precision rolling linear guide pair according to an embodiment of the present invention.

[0011] Figure 2 yes Figure 1 The image shown is a half-sectional view taken along line AA of the high-precision rolling linear guide pair according to an embodiment of the present invention.

[0012] Figure 3 yes Figure 2 The cross-sectional view of the structure shown is taken along line BB.

[0013] Figure 4 This is a cross-sectional view of the guide rail according to an embodiment of the present utility model.

[0014] In the diagram: 1. Guide rail, 2. Slider assembly, 3. Slider body, 4. Raceway block, 5. Steel ball, 6. End cap.

[0015] It should be noted that the accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Note that the drawings illustrating the structure may not be drawn to scale. Furthermore, in the drawings, identical or similar elements are labeled with the same or similar reference numerals. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0017] Figure 1 This is a schematic diagram of a high-precision rolling linear guide pair according to an embodiment of the present invention. Figure 1 As shown, the high-precision rolling linear guide pair according to an embodiment of the present invention includes: a guide rail 1 and a slider assembly 2 located on the guide rail 1, the slider assembly 2 being movable along the axial direction of the guide rail 1.

[0018] like Figure 2 and Figure 3 As shown, the slider assembly 2 includes a slider body 3, a raceway block 4, a steel ball 5, and an end cap 6. The raceway block 4 is installed inside the slider body 3, the end cap 6 is installed at both ends of the slider body 3, and the steel ball 5 is installed in the raceway block 4, the guide rail arc raceway, and the end cap, so that the slider assembly and the guide rail are in contact through the steel ball 8.

[0019] Preferably, the slider body has V-shaped cavities and ball return holes on both sides inside. Furthermore, preferably, in the above embodiment, the slider body and the raceway block make contact with each other using a 90-degree V-shaped surface.

[0020] Therefore, during the assembly of the slider assembly, for example, the slider body has a V-shaped cavity and a ball return hole inside, the raceway block is installed inside the slider body and makes V-shaped contact with the inner cavity of the slider body, the end cap is installed at both ends of the slider body, and the steel ball is installed in the raceway of the raceway block, the end cap and the rotation circuit of the slider body. After the slider assembly is assembled, it is installed on the guide rail as a whole, and the slider assembly and the guide rail are in contact through the steel ball.

[0021] In addition, such as Figure 4 As shown, preferably, the guide rail 1 has four rows of circular arc raceways, which are symmetrically arranged in pairs on both sides of the guide rail. Moreover, the four rows of circular arc raceways adopt an O-shaped arrangement, which can achieve equal bearing in the four main load directions. The guide rail has a structure that is narrow at the top and wide at the bottom.

[0022] The rolling linear guide pair of this utility model can effectively improve the rigidity of the guide pair by optimizing the layout of the guide rail raceway, improve the accuracy of the guide pair by optimizing the internal structure of the slider assembly, reduce the noise of the slider assembly during operation, and is easy to assemble.

[0023] This invention provides a high-precision rolling linear guide pair structure. The rigidity of the guide pair is improved by rearranging the guide raceway, and high precision and low noise are achieved by optimizing the internal structure of the slider assembly.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] It is understood that before using the technical solutions disclosed in the various embodiments of this utility model, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in this utility model in an appropriate manner in accordance with relevant laws and regulations, and user authorization should be obtained.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A high-precision rolling linear guide pair structure, characterized in that... include: The guide rail and the slider assembly located on the guide rail are included. The slider assembly can move along the axial direction of the guide rail. The slider assembly mainly includes a slider body, a raceway block, steel balls, and end caps. The transition cage is installed inside the slider body, the raceway block is installed inside the slider body, the end caps are installed at both ends of the slider body, and the steel balls are arranged on the arc raceway formed by the raceway block, the guide rail raceway, and the end caps, so that the slider assembly and the guide rail are in contact through the steel balls.

2. The high-precision rolling linear guide pair structure according to claim 1, characterized in that, The slider body has a V-shaped cavity inside, and the slider body and the raceway block make contact with each other at a 90-degree V-shaped surface.

3. The high-precision rolling linear guide pair structure according to any one of claims 1 to 2, characterized in that, The guide rail has four rows of circular arc raceways, which are symmetrically arranged in pairs on both sides of the guide rail. The four rows of circular arc raceways are arranged in an O-shape, and the guide rail has a structure that is narrower at the top and wider at the bottom.

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