An ultra-thin linear guide rail slider

Abstract

The utility model relates to mechanical transmission technical field, concretely relates to a kind of ultrathin linear guide rail sliding block, including slider body, rolling body, end cap, sealing assembly etc., slider body overall height is controlled at 8~10mm, suitable for ≤10mm installation height limit scene;Oblique reinforcing rib makes bending stiffness promote, composite sealing sheet realizes IP54 protection level under 0.1mm thin type, microporous oil storage cotton provides ≥500km service life, reduces maintenance frequency.The utility model overcomes the existing linear guide rail sliding block height is larger (usually ≥15mm), difficult to adapt to the installation space limit of compact equipment (such as precision instrument, miniature automation equipment, medical equipment);Heavy structure leads to high material cost, and in high-frequency light load scene, redundant design causes waste;Sealing structure occupies vertical space, affects the problem of thin design.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission technology, specifically to an ultra-thin linear guide slider. Background Technology

[0002] Linear guide systems (consisting of guide rails and sliders) are core transmission components of precision machinery and are widely used in high-precision fields such as CNC machine tools, industrial robots, medical devices (such as slip rings for CT scanners), and semiconductor equipment. Their performance directly affects the positioning accuracy, rigidity, and lifespan of the equipment. Traditional linear guide sliders are relatively tall (usually ≥15mm), making it difficult to adapt to the installation space constraints of compact equipment (such as precision instruments, micro-automation equipment, and medical devices); the heavy structure leads to high material costs, and redundant design in high-frequency, light-load scenarios results in waste; the sealing structure occupies vertical space, affecting the thin-body design. To address the problems existing in the above-mentioned technologies, an ultrathin linear guide slider is proposed. Summary of the Invention

[0003] In view of the shortcomings of the prior art, this utility model provides an ultra-thin linear guide slider, which overcomes the shortcomings of the prior art and solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an ultra-thin linear guide slider, comprising a slider body, rolling elements, end caps and sealing components, wherein the total height H of the slider body is ≤8mm and a U-shaped ball circulation channel is provided inside; The depth D of the U-shaped ball recirculation channel and the diameter d of the rolling element satisfy the following ratio: 1:0.8 ≤ D / d ≤ 1:1.2; The sidewall of the slider body is provided with oblique reinforcing ribs.

[0005] As a preferred technical solution of this utility model, the sealing assembly includes a double-layer composite sealing sheet, which is formed by a flexible wear-resistant rubber layer and an outer metal liner fixedly connected; the total thickness h of the double-layer composite sealing sheet is ≤0.6mm, and it is embedded in the stepped mounting groove on the side of the slider body.

[0006] As a preferred technical solution of this utility model, a microporous oil-retaining cotton is pre-embedded on the inner side of the end cap, and the microporous oil-retaining cotton is connected to the U-shaped ball circulation channel through capillary action; the end cap and the slider body are connected by countersunk screws, and the thickness of the end cap H2≤2mm.

[0007] As a preferred technical solution of this utility model, the slider body is made of high-strength aluminum alloy or powder metallurgy steel, and its maximum thickness H3 at the top and bottom is ≤3mm. The oblique reinforcing ribs are distributed in an interlaced mesh along the length of the slider.

[0008] As a preferred technical solution of this utility model, the thickness of the inner flexible wear-resistant rubber layer is h1=0.3~0.5mm, the thickness of the outer metal liner is h2=0.1~0.2mm, and the two are fixed by vulcanization bonding.

[0009] As a preferred embodiment of this utility model, the porosity of the microporous oil-storing cotton is 60%~80%, and the distance between the surface of the oil-storing cotton and the U-shaped ball circulation channel is ≤0.3mm.

[0010] As a preferred embodiment of this utility model, the rolling element is a ceramic ball with a diameter d = 1.5~3mm.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The overall height is controlled at 8~10mm, making it suitable for extreme scenarios with an installation height of ≤10mm; the diagonal reinforcing ribs improve bending stiffness; the composite sealing sheet achieves IP54 protection level with a thickness of 0.1mm; and the microporous oil-absorbing cotton provides a service life of ≥500km, reducing maintenance frequency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ; Figure 2 This is a three-dimensional illustration of the present invention. Figure 2 ; Figure 3 This is a three-dimensional schematic diagram of the end cap of this utility model; Figure 4 This is a schematic diagram of the double-layer composite sealing sheet structure of this utility model.

[0013] In the diagram: 1. Slider body; 101. U-shaped ball circulation channel; 2. Rolling element; 3. End cap; 301. Microporous oil storage cotton; 4. Double-layer composite sealing sheet; 401. Inner flexible wear-resistant rubber layer; 402. Outer metal liner; 5. Countersunk screw; 6. Diagonal reinforcing rib. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 An ultra-thin linear guide slider includes a slider body 1, a rolling element 2, an end cap 3, and a sealing assembly; The total height H of the slider body 1 is less than or equal to 8 mm, and a U-shaped ball circulation channel 101 is provided inside it; The depth D of the U-shaped ball circulation channel 101 and the diameter d of the rolling element 2 satisfy: 1:0.8 ≤ D / d ≤ 1:1.2; The side wall of the slider body 1 is provided with oblique reinforcing ribs 6.

[0016] Specifically, the sealing assembly includes a double-layer composite sealing sheet 4, which is formed by a flexible wear-resistant rubber layer 401 and an outer metal liner 402 fixedly connected; the total thickness h of the double-layer composite sealing sheet 4 is ≤0.6mm, and it is embedded in the stepped mounting groove on the side of the slider body 1.

[0017] Specifically, a microporous oil-retaining cotton 301 is pre-embedded on the inner side of the end cap 3. The microporous oil-retaining cotton 301 is connected to the U-shaped ball circulation channel 101 through capillary action. The end cap 3 is connected to the slider body 1 by countersunk screws 5. The thickness H2 of the end cap 3 is ≤2mm.

[0018] Specifically, the slider body 1 is made of high-strength aluminum alloy or powder metallurgy steel, with a maximum thickness H3≤3mm at the top and bottom, and the oblique reinforcing ribs 6 are distributed in an interlaced mesh along the length of the slider.

[0019] Specifically, the thickness of the inner flexible wear-resistant rubber layer 401 is h1=0.3~0.5mm, and the thickness of the outer metal liner 402 is h2=0.1~0.2mm. The two are fixed by vulcanization bonding.

[0020] Specifically, the porosity of the microporous oil storage cotton 301 is 60%~80%, and the distance between the surface of the oil storage cotton and the U-shaped ball circulation channel 101 is ≤0.3mm.

[0021] Specifically, the rolling element 2 is a ceramic ball with a diameter d = 1.5~3mm.

[0022] Working principle: 1. Dimensions: Length 40mm × Width 20mm × Height 6mm, material is 7075 aluminum alloy; 101 Curvature radius R=1.5mm, suitable for φ3mm ceramic balls; 4. Total thickness 0.5mm rubber layer + 0.3mm stainless steel layer, embedded in deep stepped groove; 3. The oil-absorbing cotton is impregnated with silicone-based grease, with an initial oil content ≥0.5g.

[0023] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultra-thin linear guide slider, comprising a slider body (1), rolling elements (2), end caps (3), and a sealing assembly, characterized in that: The total height H of the slider body (1) is ≤8mm, and a U-shaped ball circulation channel (101) is provided inside it. The depth D of the U-shaped ball circulation channel (101) and the diameter d of the rolling element (2) satisfy: 1:0.8 ≤ D / d≤ 1:1.2; The side wall of the slider body (1) is provided with oblique reinforcing ribs (6). The sealing assembly includes a double-layer composite sealing sheet (4), which is formed by a fixed connection of an inner flexible wear-resistant rubber layer (401) and an outer metal liner (402); the total thickness h of the double-layer composite sealing sheet (4) is ≤0.6mm, and it is embedded in the stepped mounting groove on the side of the slider body (1).

2. The ultra-thin linear guide slider according to claim 1, characterized in that: The inner side of the end cap (3) is pre-embedded with microporous oil storage cotton (301), which is connected to the U-shaped ball circulation channel (101) through capillary action; the end cap (3) is connected to the slider body (1) by countersunk screws (5), and the thickness H2 of the end cap (3) is ≤2mm.

3. The ultra-thin linear guide slider according to claim 1, characterized in that: The slider body (1) is made of high-strength aluminum alloy or powder metallurgy steel, and its maximum thickness H3 at the top and bottom is ≤3mm. The oblique reinforcing ribs (6) are distributed in an interlaced mesh along the length of the slider.

4. The ultra-thin linear guide slider according to claim 1, characterized in that: The thickness of the inner flexible wear-resistant rubber layer (401) is h1=0.3~0.5mm, and the thickness of the outer metal liner (402) is h2=0.1~0.2mm. The two are fixed by vulcanization bonding.

5. The ultra-thin linear guide slider according to claim 2, characterized in that: The porosity of the microporous oil storage cotton (301) is 60%~80%, and the distance between the surface of the oil storage cotton and the U-shaped ball circulation channel (101) is ≤0.3mm.

6. The ultra-thin linear guide slider according to claim 1, characterized in that: The rolling element (2) is a ceramic ball with a diameter d = 1.5~3mm.

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