A sealing structure for crossed roller guides

Abstract

This invention provides a sealing structure for crossed roller guides, relating to the field of crossed roller guide technology. The sealing structure includes a fixed component and a movable seat. The fixed component has a mounting groove opening to one side for mounting the crossed roller guide. The movable seat passes through the opening of the mounting groove, with one end connected to the moving rail of the crossed roller guide within the mounting groove. A first connecting slit, continuously bent, is formed between the upper side of the movable seat and the upper wall of the mounting groove, with both ends connecting the interior and exterior of the mounting groove. A second connecting slit, continuously bent, is formed between the lower side of the movable seat and the lower wall of the mounting groove, with both ends connecting the interior and exterior of the mounting groove. This sealing structure improves the reliability of the guide rail, prevents the lubricating medium from evaporating from the inside out, avoids waste of the lubricating medium, ensures the durability of the lubrication effect, and prevents the lubricating medium from evaporating and polluting the external environment.

Description

Technical Field

[0001] This invention relates to the field of crossed roller guide technology, and more specifically, to a sealing structure for crossed roller guides. Background Technology

[0002] Crossed roller guides are precision guiding devices commonly used in automated equipment and precision instruments.

[0003] Current crossed roller guides typically consist of a fixed rail, a moving rail, and a cage connecting the fixed and moving rails. During use, a lubricating medium, such as lubricating oil, is usually added to the cage for lubrication. However, with the development of precision equipment applications, many manufacturing and measurement processes are shifting to vacuum environments. After the moving rail slides relative to the fixed rail, the lubricating medium can easily leak from between the fixed and moving rails into the vacuum environment. This severely affects the required vacuum level and limits the widespread use of many precision equipment. Furthermore, the reduction of lubricating medium accelerates rail wear, leading to malfunctions and impacting the reliability of the guide. Summary of the Invention

[0004] The problem solved by this invention is: how to improve the reliability of cross roller guides and prevent lubricant leakage from polluting the external environment.

[0005] To address the aforementioned problems, the present invention provides a sealing structure for a cross roller guide, comprising a fixing component and a movable seat; the fixing component has a mounting groove opening to one side for mounting the cross roller guide; the movable seat passes through the opening of the mounting groove, one end of the movable seat is used to connect with the moving rail of the cross roller guide within the mounting groove, the upper side of the movable seat forms a first connecting seam with the upper wall of the mounting groove in a continuously bent manner, the two ends of the first connecting seam respectively connecting the interior and exterior of the mounting groove, and the lower side of the movable seat forms a second connecting seam with the lower wall of the mounting groove in a continuously bent manner, the two ends of the second connecting seam respectively connecting the interior and exterior of the mounting groove.

[0006] Optionally, the first connecting seam includes a plurality of first narrow slot segments connected sequentially from the inside to the outside along the mounting groove, and in a plane perpendicular to the extension direction of the cross roller guide, the extension directions of the projections of two adjacent first narrow slot segments are perpendicular to each other.

[0007] Optionally, at least one of the first narrow slit segments has a recessed wall to form a first cavity; and / or, in a plane perpendicular to the extension direction of the cross roller guide, the projections of two spaced-apart first narrow slit segments extend in opposite or the same directions.

[0008] Optionally, the second connecting seam includes a plurality of second narrow slit segments connected sequentially from the inside to the outside along the mounting groove, and in a plane perpendicular to the extension direction of the cross roller guide, the extension directions of the projections of two adjacent second narrow slit segments are perpendicular to each other.

[0009] Optionally, at least one of the second narrow slit segments has a recessed wall to form a second cavity; and / or, in a plane perpendicular to the extension direction of the cross roller guide, the projections of two second narrow slit segments spaced apart have opposite or the same extension directions.

[0010] Optionally, the fixing assembly includes a fixing seat, a first groove wall plate, a second groove wall plate, and two baffles; the fixing seat has a mounting side, and the lower end of the mounting side is connected to a base plate; the first groove wall plate is disposed at the upper end of the base plate; the second groove wall plate is disposed at the upper end of the fixing seat and extends above the first groove wall plate; the two baffles are respectively disposed at the front and rear ends of the fixing seat and are both connected to the base plate and the second groove wall plate; the mounting side, the first groove wall plate, the second groove wall plate, and the two baffles together form the mounting groove.

[0011] Optionally, the movable seat cooperates with the second groove wall plate to form the first connecting seam; the movable seat cooperates with the first groove wall plate to form the second connecting seam.

[0012] Optionally, the mounting side is recessed with a fixing groove extending along the extension direction of the cross roller guide, the fixing groove being adapted to the fixed rail shape of the cross roller guide, and the fixing groove being used for the fixed rail installation of the cross roller guide.

[0013] Optionally, the movable seat includes a body and two cover portions. The body passes through the opening, and the end of the body located in the mounting groove is connected to the moving rail. The two cover portions are located at the end of the body located outside the mounting groove and are respectively located on the front and rear sides of the body. The two cover portions are used to cover the part of the opening located between the baffle and the body.

[0014] Optionally, the length of the movable seat in the extension direction of the cross roller guide is greater than the length of the opening in the extension direction of the cross roller guide.

[0015] Compared with the prior art, the sealing structure for crossed roller guides provided by the present invention has, but is not limited to, the following technical effects:

[0016] In the sealing structure for crossed roller guides provided by the present invention, a mounting groove with an opening to one side is formed on the fixing component. The mounting groove is used for mounting the crossed roller guide so that the crossed roller guide is surrounded and can only communicate with the outside through the opening. This can reduce the leakage of lubricating medium from the crossed roller guide. At the same time, by passing a movable seat connected to the moving rail through the opening of the mounting groove, and the upper and lower sides of the movable seat forming a first connecting seam and a second connecting seam with the upper and lower groove walls of the mounting groove, respectively, and the first connecting seam and the second connecting seam are both continuously bent, the leakage of lubricating medium from the crossed roller guide can be further prevented. Specifically, when the moving rail slides relative to the fixed rail, the lubricating medium near the cage leaks outward through the first and second connecting seams. Because both seams are continuously bent, the leakage path is long and tortuous, which helps to prevent the loss of lubricating medium, ensuring smooth operation of the guide rail and improving its reliability. Furthermore, when the high-speed compressed airflow at the guide rail flows outward through the first or second connecting seam, the pressure inside the seam is lower than the pressure outside the fixed component, making it difficult for the lubricating medium to leak outward, further hindering its loss and improving the guide rail's reliability. Simultaneously, because the lubricating medium is less likely to leak outward, its evaporation into the external environment is also reduced, preventing environmental pollution from leaks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the sealing structure for a crossed roller guide according to an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the sealing structure for a crossed roller guide according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the cross roller guide rail according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the first and second connecting seams in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the fixing component according to an embodiment of the present invention;

[0022] Figure 6 This is an exploded structural diagram of the fixing component according to an embodiment of the present invention;

[0023] Figure 7 This is a cross-sectional view of the fixing component according to an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the movable base according to an embodiment of the present invention;

[0025] Figure 9 This is a longitudinal cross-sectional view of the sealing structure for a cross roller guide according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Fixed component, 11-Fixed seat, 111-Mounting side, 112-Base plate, 113-Fixed groove, 12-First groove wall panel, 13-Second groove wall panel, 14-Baffle, 2-Moving seat, 21-Body, 211-Connecting plate, 22-Cover part, 3-Mounting groove, 31-Opening, 4-Cross roller guide rail, 41-Fixed rail, 42-Cage, 43-Moving rail, 5-First connecting seam, 51-First narrow slit segment, 52-First cavity, 6-Second connecting seam, 61-Second narrow slit segment, 62-Second cavity. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] In the description of this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, in the description of this invention, the terms "embodiment" or "exemplary" refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation that is included in at least one embodiment or implementation of the invention. In this invention, illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0030] In the description of this invention, it should be understood that if the terms "upper", "lower", "front", "rear", "left", and "right" are used, they 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 invention 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 invention.

[0031] Furthermore, in the description of this invention, the X-axis in the accompanying drawings represents the horizontal direction and is designated as the front-to-back position, with the positive direction of the X-axis representing the front and the negative direction representing the rear; the Y-axis in the accompanying drawings represents the horizontal direction and is designated as the left-to-right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right; the Z-axis in the accompanying drawings represents the vertical direction, i.e., the up-down position, with the positive direction of the Z-axis representing the top and the negative direction representing the bottom. It should be noted that the aforementioned representations of the X, Y, and Z axes are merely for the convenience of describing this invention and for simplifying the description, and are not intended to 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 limiting the invention.

[0032] Please refer to Figure 1 and Figure 2 This invention provides a sealing structure for a cross roller guide rail, comprising a fixing component 1 and a movable seat 2. The fixing component 1 has a mounting groove 3 opening to one side for mounting a cross roller guide rail 4. The movable seat 2 passes through the opening 31 of the mounting groove 3, and one end of the movable seat 2 is connected to the moving rail 43 of the cross roller guide rail 4 within the mounting groove 3. A first connecting seam 5, which is continuously bent, is formed between the upper side of the movable seat 2 and the upper wall of the mounting groove 3. The two ends of the first connecting seam 5 connect the interior and exterior of the mounting groove 3, respectively. A second connecting seam 6, which is continuously bent, is formed between the lower side of the movable seat 2 and the lower wall of the mounting groove 3, respectively connecting the interior and exterior of the mounting groove 3.

[0033] Specifically, please refer to the following: Figure 1 and Figure 7 The mounting groove 3 extends in the front-to-back direction, and the opening 31 is a rectangular opening extending in the front-to-back direction, with the opening 31 facing the right side of the fixing component 1; the two ends of the first connecting seam 5 are the left and right ends of the first connecting seam 5, and the two ends of the second connecting seam 6 are the left and right ends of the second connecting seam 6. It should be noted that this embodiment does not limit the specific structure of the cross roller guide rail 4. For example, refer to Figure 3 The cross roller guide 4 includes a fixed rail 41, a retainer 42, and a moving rail 43. The retainer 42 has multiple rollers arranged in an alternating pattern. The moving rail 43 is slidably mounted on the fixed rail 41 via the retainer 42. The cross roller guide 4 is placed within the mounting groove 3 and extends in the front-to-back direction. It can be understood that because the movable seat 2 passes entirely through the opening 31 of the mounting groove 3, and the movable seat 2 is connected to the moving rail 43 of the cross roller guide 4 within the mounting groove 3, when the moving rail 43 slides back and forth relative to the fixed rail 41, the moving rail 43 immediately drives the movable seat 2 to move back and forth along the opening 31.

[0034] It should also be noted that in the actual application of this sealing structure, the cross roller guide 4 can be installed into the mounting groove 3 first, and then the cross roller guide 4 and the sealing structure can be installed as a whole into the automated equipment or precision instrument. The parts in the automated equipment or precision instrument that need to move linearly are connected to the moving seat 2. The moving seat 2 moves back and forth along the opening 31 with the moving rail 43, which can drive the parts that need to move linearly to move linearly.

[0035] It should also be noted that when the cross roller guide 4 is in use, the sliding process of the moving rail 43 relative to the fixed rail 41 will cause the cage 42 to generate a high-speed extrusion airflow. The increased airflow speed will reduce the surrounding pressure, which will be lower than the pressure of the environment outside the sealing structure. That is, the pressure at the guide rail will be lower than the pressure outside the fixed component 1.

[0036] It should also be noted that when the moving rail 43 slides relative to the fixed rail 41 and drives the moving seat 2 to move back and forth along the opening 31, the lubricating medium at the guide rail usually overflows outward from the upper and lower sides of the guide rail. Therefore, when the lubricating medium overflows outward from the fixed component 1, it mainly leaks along the upper and lower sides of the moving seat 2, that is, it leaks outward through the first connecting seam 5 and the second connecting seam 6.

[0037] In this embodiment, the fixing component 1 has a mounting groove 3 with an opening 31 on one side, and the mounting groove 3 is used for mounting the cross roller guide 4 so that the cross roller guide 4 is surrounded and can only communicate with the outside through the opening 31. This can reduce the leakage of lubricating medium from the cross roller guide 4. At the same time, by passing the movable seat 2 connected to the moving rail 43 through the opening 31 of the mounting groove 3, and the upper and lower sides of the movable seat 2 forming a first connecting seam 5 and a second connecting seam 6 with the upper and lower groove walls of the mounting groove 3 respectively, and the first connecting seam 5 and the second connecting seam 6 are continuously bent, the leakage of lubricating medium from the cross roller guide 4 can be further prevented. Specifically, when the moving rail 43 slides relative to the fixed rail 41, the lubricating medium near the retainer 42 leaks outward through the first connecting seam 5 and the second connecting seam 6. Because both the first connecting seam 5 and the second connecting seam 6 are continuously bent, the leakage path of the lubricating medium is long and tortuous, which helps to prevent the loss of the lubricating medium, ensures the smooth operation of the guide rail, and thus improves the reliability of the guide rail. In addition, when the high-speed compressed airflow at the guide rail flows outward through the first connecting seam 5 or the second connecting seam 6, the pressure inside the connecting seam is lower than the pressure outside the fixed component 1. The lubricating medium inside the connecting seam is not easy to leak outward, further hindering the loss of the lubricating medium and improving the reliability of the guide rail. At the same time, because the lubricating medium is not easy to leak outward, the evaporation of the lubricating medium into the external environment is also reduced, which can prevent the lubricating medium leakage from polluting the external environment.

[0038] Alternatively, please refer to Figure 4The first connecting seam 5 includes a plurality of first narrow slit segments 51 connected sequentially from the inside to the outside along the mounting groove 3. In a plane perpendicular to the extension direction of the cross roller guide 4, the extension directions of the projections of two adjacent first narrow slit segments 51 are perpendicular to each other.

[0039] It should be noted that this embodiment does not restrict the specific extension direction of two adjacent first narrow slit segments 51, as long as the extension directions of the projections of the two first narrow slit segments 51 are perpendicular to each other. For example, the extension direction of the projection of one first narrow slit segment 51 is vertical, and the extension direction of the projection of the other first narrow slit segment 51 is horizontal. Specifically, the direction from the inside to the outside of the mounting groove 3 is from left to right, that is... Figure 1 The Y-axis shown is reversed.

[0040] In this embodiment, since the projections of two adjacent first narrow slit segments 51 are perpendicular to each other, they form a right-angle structure, which helps to increase the resistance to the flow of lubricating medium and further hinder the loss of lubricating medium.

[0041] Alternatively, please refer to Figure 4 At least one of the first narrow slit segments 51 has a wall recess to form a first cavity 52; and / or, in a plane perpendicular to the extending direction of the cross roller guide 4, the projections of two spaced-apart first narrow slit segments 51 extend in opposite or the same directions.

[0042] It should be noted that this embodiment does not limit the number of first cavities 52. For example, refer to Figure 4 Two first cavities 52 are provided, and the two first cavities 52 are located in different first narrow slit segments 51.

[0043] In this embodiment, by recessing the wall of the first narrow slit segment 51 to form a first cavity 52, when the airflow flows through the first narrow slit segment 51 with the first cavity 52, part of the airflow will enter the first cavity 52, while the other part will still flow along the original extension direction of the first narrow slit segment 51. As a result, the pressure will decrease significantly when the airflow flows through the first narrow slit segment 51 with the first cavity 52, thereby reducing the pressure of the entire first connecting seam 5.

[0044] Alternatively, please refer to Figure 4 The second connecting seam 6 includes a plurality of second narrow slit segments 61 connected sequentially from the inside to the outside along the mounting groove 3. In a plane perpendicular to the extension direction of the cross roller guide 4, the extension directions of the projections of two adjacent second narrow slit segments 61 are perpendicular to each other.

[0045] It should be noted that this embodiment does not restrict the specific extension direction of two adjacent second narrow slit segments 61, as long as the extension directions of the projections of the two second narrow slit segments 61 are perpendicular to each other. For example, the extension direction of the projection of one second narrow slit segment 61 is up and down, and the extension direction of the projection of the other second narrow slit segment 61 is left and right.

[0046] In this embodiment, since the projections of two adjacent second narrow slit segments 61 are perpendicular to each other, a right-angle structure is formed between the two adjacent second narrow slit segments 61, which helps to increase the resistance to the flow of lubricating medium and further hinder the loss of lubricating medium.

[0047] Alternatively, please refer to Figure 4 At least one of the second narrow slit segments 61 has a wall recess to form a second cavity 62; and / or, in a plane perpendicular to the extending direction of the cross roller guide 4, the projections of two spaced-apart second narrow slit segments 61 extend in opposite or the same directions.

[0048] It should be noted that this embodiment does not limit the number of second cavities 62. For example, refer to... Figure 4 Two second cavities 62 are provided, and the two second cavities 62 are located in the same second narrow slit segment 61.

[0049] In this embodiment, by recessing the wall of the second narrow slit segment 61 to form a second cavity 62, when the airflow flows through the second narrow slit segment 61 with the second cavity 62, part of the airflow will enter the second cavity 62, while the other part will still flow along the original extension direction of the second narrow slit segment 61. As a result, the pressure will decrease significantly when the airflow flows through the second narrow slit segment 61 with the second cavity 62, thereby reducing the pressure of the entire second connecting slit 6.

[0050] Alternatively, please refer to Figures 5 to 7 The fixing component 1 includes a fixing base 11, a first groove wall plate 12, a second groove wall plate 13, and two baffles 14. The fixing base 11 has a mounting side 111, and the lower end of the mounting side 111 is connected to a base plate 112. The first groove wall plate 12 is located at the upper end of the base plate 112. The second groove wall plate 13 is located at the upper end of the fixing base 11 and extends above the first groove wall plate 12. The two baffles 14 are respectively located at the front and rear ends of the fixing base 11 and are both connected to the base plate 112 and the second groove wall plate 13. The mounting side 111, the first groove wall plate 12, the second groove wall plate 13, and the two baffles 14 together form the mounting groove 3.

[0051] In this embodiment, the fixing component 1 is configured as a fixing seat 11, a first groove wall plate 12, a second groove wall plate 13, and two baffles 14. The fixing seat 11, the first groove wall plate 12, the second groove wall plate 13, and the two baffles 14 together form the mounting groove 3. Thus, the first groove wall plate 12, the second groove wall plate 13, and the two baffles 14 form a roughly square frame structure. The opening 31 of the mounting groove 3 is the frame structure facing away from the fixing seat 11. In this way, the two baffles 14 limit the forward and backward movement of the movable seat 2 to limit the movement range of the movable seat 2.

[0052] Alternatively, please refer to Figures 5 to 7 The movable seat 2 cooperates with the second groove wall plate 13 to form the first connecting seam 5; the movable seat 2 cooperates with the first groove wall plate 12 to form the second connecting seam 6.

[0053] Specifically, please refer to Figure 8 The movable seat 2 may include a front-to-back extending body 21. The end of the body 21 located within the mounting groove 3 is provided with a connecting plate 211. The connecting plate 211 is detachably connected to the moving rail 43, and the body 21 is connected to the moving rail 43 via the connecting plate 211. More specifically, the lower end of the second groove wall plate 13 forms a front-to-back extending T-shaped plate, and the upper end of the body 21 forms a T-shaped groove adapted to the shape of the T-shaped plate. The T-shaped plate and the T-shaped groove together form part of the first connecting seam 5, thus further hindering the flow of lubricating medium. More specifically, the first groove wall plate 12 forms a front-to-back extending I-shaped plate, and the lower part of the body 21 forms an I-shaped groove adapted to the shape of the I-shaped plate. The I-shaped plate and the I-shaped groove together form part of the second connecting seam 6, thus further hindering the flow of lubricating medium.

[0054] In this embodiment, by having the movable seat 2 cooperate with the second groove wall plate 13 to form a first connecting seam 5, and the movable seat 2 cooperate with the first groove wall plate 12 to form a second connecting seam 6, it is beneficial to improve the sealing performance between the movable seat 2 and the two groove wall plates.

[0055] Alternatively, please refer to Figures 5 to 7 The mounting side 111 is recessed with a fixing groove 113 extending along the extension direction of the cross roller guide 4. The fixing groove 113 is adapted to the shape of the fixed rail 41 of the cross roller guide 4. The fixing groove 113 is used for mounting the fixed rail 41 of the cross roller guide 4.

[0056] In this embodiment, a fixing groove 113 that matches the shape of the fixed rail 41 of the cross roller guide 4 is provided on the mounting side 111 to facilitate the installation and fixing of the fixed rail 41 and prevent it from loosening.

[0057] Alternatively, please refer to Figure 8 and Figure 9 The movable seat 2 includes a body 21 and two cover portions 22. The body 21 passes through the opening 31. The end of the body 21 located in the mounting groove 3 is connected to the moving rail 43. The two cover portions 22 are located at the ends of the body 21 located outside the mounting groove 3, and are respectively located on the front and rear sides of the body 21. The two cover portions 22 are used to cover the part of the opening 31 located between the baffle 14 and the body 21.

[0058] It should be noted that this embodiment does not limit the specific implementation of the cover portion 22. For example, the cover portion 22 includes a cover plate. Specifically, the length of the movable seat 2 in the extending direction of the cross roller guide 4 is greater than the length of the opening 31 in the extending direction of the cross roller guide 4. That is, the front-to-back length of the body 21 and the two cover portions 22 as a whole is greater than the front-to-back length of the opening 31, so as to better cover the opening 31.

[0059] Because the body 21 needs to move along the opening 31, it will not completely seal the opening 31. This will cause some lubricating medium to flow out from the area of ​​the opening 31 other than the body 21, resulting in lubricating medium loss. Therefore, in this embodiment, by providing two covering parts 22, the two covering parts 22 can cooperate to cover the part of the opening 31 located between the baffle 14 and the body 21 during the movement of the body 21 along the opening 31, thereby reducing the flow of lubricating medium from the area of ​​the opening 31 other than the body 21 and reducing lubricating medium leakage.

[0060] Alternatively, please refer to Figure 9 The cover 22 has gaps between itself and the first groove wall plate 12 and the second groove wall plate 13, respectively, to prevent the cover 22 from rubbing against the fixed component 1 during the movement of the movable seat 2, thereby causing the debris generated by friction to enter the guide rail.

[0061] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A sealing structure for crossed roller guides, characterized in that, The device includes a fixed component (1) and a movable seat (2); the fixed component (1) has a mounting groove (3) opening to one side, which is used for mounting a cross roller guide (4); the movable seat (2) passes through the opening (31) of the mounting groove (3), one end of the movable seat (2) is connected to the moving rail (43) of the cross roller guide (4) in the mounting groove (3), the upper side of the movable seat (2) forms a first connecting seam (5) with the upper wall of the mounting groove (3) in a continuously bent manner, the two ends of the first connecting seam (5) respectively connecting the inside and outside of the mounting groove (3), the lower side of the movable seat (2) forms a second connecting seam (6) with the lower wall of the mounting groove (3) in a continuously bent manner, the two ends of the second connecting seam (6) respectively connecting the inside and outside of the mounting groove (3). The fixing assembly (1) includes a fixing seat (11), a first groove wall plate (12), a second groove wall plate (13), and two baffles (14). The fixing seat (11) has a mounting side (111), the lower end of which is connected to a base plate (112). The first groove wall plate (12) is located at the upper end of the base plate (112). The second groove wall plate (13) is located at the upper end of the fixing seat (11) and extends above the first groove wall plate (12). The two baffles (14) are respectively located at the front and rear ends of the fixing seat (11) and are connected to the base plate (112) and the second groove wall plate (13). The mounting side (111), the first groove wall plate (12), the second groove wall plate (13), and the two baffles (14) together form the mounting groove (3).

2. The sealing structure for crossed roller guides according to claim 1, characterized in that, The first connecting seam (5) includes a plurality of first narrow slit segments (51) connected sequentially from the inside to the outside along the mounting groove (3). In a plane perpendicular to the extension direction of the cross roller guide (4), the extension directions of the projections of two adjacent first narrow slit segments (51) are perpendicular to each other.

3. The sealing structure for crossed roller guides according to claim 2, characterized in that, At least one of the first narrow slit segments (51) has a wall recess to form a first cavity (52); and / or, in a plane perpendicular to the extension direction of the cross roller guide (4), the projections of two first narrow slit segments (51) spaced apart have opposite or the same extension directions.

4. The sealing structure for crossed roller guides according to claim 1, characterized in that, The second connecting seam (6) includes a plurality of second narrow slit segments (61) connected sequentially from the inside to the outside along the mounting groove (3). In a plane perpendicular to the extension direction of the cross roller guide (4), the extension directions of the projections of two adjacent second narrow slit segments (61) are perpendicular to each other.

5. The sealing structure for crossed roller guides according to claim 4, characterized in that, At least one of the second narrow slit segments (61) has a wall recess to form a second cavity (62); and / or, in a plane perpendicular to the extension direction of the cross roller guide (4), the projections of two second narrow slit segments (61) spaced apart have opposite or the same extension directions.

6. The sealing structure for crossed roller guides according to any one of claims 1-5, characterized in that, The movable seat (2) cooperates with the second groove wall plate (13) to form the first connecting seam (5); the movable seat (2) cooperates with the first groove wall plate (12) to form the second connecting seam (6).

7. The sealing structure for crossed roller guides according to any one of claims 1-5, characterized in that, The mounting side (111) is recessed with a fixing groove (113) extending along the extension direction of the cross roller guide (4). The fixing groove (113) is adapted to the shape of the fixed rail (41) of the cross roller guide (4). The fixing groove (113) is used for mounting the fixed rail (41) of the cross roller guide (4).

8. The sealing structure for crossed roller guides according to any one of claims 1-5, characterized in that, The movable seat (2) includes a body (21) and two cover portions (22). The body (21) passes through the opening (31). The end of the body (21) located in the mounting groove (3) is connected to the moving rail (43). The two cover portions (22) are located at the ends of the body (21) located outside the mounting groove (3) and are respectively located on the front and rear sides of the body (21). The two cover portions (22) are used to cover the part of the opening (31) located between the baffle (14) and the body (21).

9. The sealing structure for crossed roller guides according to claim 8, characterized in that, The length of the movable seat (2) in the extension direction of the cross roller guide (4) is greater than the length of the opening (31) in the extension direction of the cross roller guide (4).

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