A kind of anti-shake high-precision linear guide mechanism

Abstract

The utility model belongs to linear guide rail technical field, concretely is a kind of anti-shake high-precision linear guide rail mechanism, including guide rail body, the top surface sliding connection of guide rail body has slider, and the both ends of guide rail body are fixedly connected with top seat, the middle part of top seat is provided with adjusting mechanism, the both sides of slider are provided with side strip, a group of guide rings are equidistantly arranged in the inside of side strip, a group of movable blocks are movably connected in the inside of guide ring, the inside of movable block is centrally penetrated and is provided with locating bolt, the guiding assembly of the present application is convenient to assemble and disassemble, can play the role of limiting direction, reduce the shaking problem of slider, the moving resistance of guiding assembly is small simultaneously, ensure the moving accuracy and service life of slider, set adjusting assembly, the installation position of guiding assembly can be quickly adjusted, reduce the influence of guiding structure to slider load installation, ensure the use convenience of slider.

Description

Technical Field

[0001] This utility model relates to the field of linear guide technology, specifically a vibration-resistant high-precision linear guide mechanism. Background Technology

[0002] Linear guides are mechanical components used to achieve high-precision linear motion. They are widely used in automation equipment, CNC machine tools, industrial robots, and other fields. By replacing sliding friction with rolling friction, they reduce energy loss, improve motion efficiency, provide a stable linear motion path for moving parts, ensure high-precision positioning, can withstand loads in multiple directions, and are suitable for heavy-duty scenarios.

[0003] Patent document CN216742461U discloses a shake-resistant high-precision linear guide mechanism, including a slide rail body. The slide rail body is provided with a sliding seat that slides and engages with the slide rail body. The sliding seat is provided with a plurality of transversely embedded sliding plates symmetrically arranged along the center line of the sliding seat. The slide rail body is provided with an embedded sliding groove. The transversely embedded sliding plates slide and engage with the embedded sliding groove. The slide rail body is provided with a multi-directional shake-resistant fixing component.

[0004] The aforementioned linear guide has some problems in use. While it uses limiting supports on both the upper and lower sides to limit the slider and thus stabilize it, the limiting support at the top penetrates the slider, easily causing motion interference. Furthermore, the limiting support affects the load installation on the outside of the slider, and the increased contact area between the upper and lower limiting supports and the slider surface increases the sliding resistance, leading to issues with precision and lifespan. Therefore, to address these problems, a vibration-resistant high-precision linear guide mechanism is proposed. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the aforementioned linear guide rail uses limiting support members on both the upper and lower sides of the guide rail to limit the slider, thereby achieving anti-shaking and stabilizing effects. However, the limiting member at the top of the linear guide rail penetrates the slider, which can easily cause motion interference to the slider. At the same time, the limiting member affects the load installation on the outside of the slider. Furthermore, both the upper and lower limiting members are in contact with the slider surface, and the increased contact area increases the slider's movement resistance, leading to issues with the slider's precision and service life. This utility model proposes an anti-shaking high-precision linear guide rail mechanism.

[0006] The technical solution adopted by this utility model to solve its technical problem is: the anti-shake high-precision linear guide mechanism of this utility model includes a guide body, a slider is slidably connected to the top surface of the guide body, and a top seat is fixedly connected to both ends of the guide body. An adjustment mechanism is provided in the middle of the top seat, and side strips are provided on both sides of the slider. A set of guide rings are equidistantly arranged inside the side strip. A set of movable blocks are movably connected inside the guide rings. A positioning bolt is centrally installed inside the movable block.

[0007] Preferably, the adjusting mechanism includes a lead screw, both ends of which are fixedly connected to threaded rods, and a ball nut is sleeved on the outside of the lead screw, with a support plate fixedly connected to both sides of the ball nut.

[0008] Preferably, a guide groove is provided in the center of the outer side of the guide ring, the guide groove is in contact with the inner surface of the side strip, and the inner end of the positioning bolt passes through the movable block and is threadedly connected to the slider.

[0009] Preferably, the lead screw is located in the center of the top seat and is movably connected to the top seat, the support plate is located on the outside of the top seat, and the connection between the support plate and the ball nut is slidably connected to the top seat.

[0010] Preferably, the two threaded rods are located at both ends of the top seat, the outer side of the threaded rod is threaded with a nut, and the top end of the upper threaded rod is fixedly connected with a knob, and the inner sides of the two nuts are respectively in contact with the end faces of the two ends of the top seat.

[0011] Preferably, each end of the side strip is fixedly connected to a mounting base, and the two mounting bases are respectively fixedly connected to two support plates.

[0012] The advantages of this utility model are: 1. This utility model uses a movable guide ring positioned outside the slider. A positioning bolt is then passed through the movable block and connected to the threaded groove on the outside of the slider to complete the installation of the guide assembly. During slider movement, the guide ring and side strips limit and prevent shaking of the slider. Simultaneously, as the guide ring moves, the guide groove contacts the inner surface of the side strip, generating friction. Combined with the movable block, the guide ring rotates, reducing movement resistance. This application, through a guide assembly that is easy to install and remove, can both limit and guide movement, reducing slider shaking. Furthermore, the guide assembly has low movement resistance, ensuring the slider's movement accuracy and service life. 2. This utility model uses an adjustment mechanism to install two top seats at both ends of the guide rail body. Rotating a knob drives a lead screw, which in turn moves a ball nut inside the top seat, adjusting the vertical position of the support plate and thus the installation position of the guide assembly. This avoids affecting the subsequent load installation of the slider. After the guide assembly's installation position is adjusted, the nuts on the outside of the two threaded rods are rotated to make them fit against the end faces of the top seats, fixing the lead screw in place inside the top seat and ensuring the stability of the guide assembly's installation. The adjustment mechanism allows for quick adjustment of the guide assembly's installation position, reducing the influence of the guide structure on the slider's load installation and ensuring the slider's ease of use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a structural exploded view of the slider and side strip of this utility model; Figure 3 This is a cross-sectional structural diagram of the guide ring of this utility model; Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model; Figure 5 For the present utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0015] In the diagram: 1. Guide rail body; 2. Slider; 3. Top seat; 4. Adjustment mechanism; 5. Side bar; 6. Guide ring; 7. Movable block; 8. Guide groove; 9. Positioning bolt; 10. Lead screw; 11. Threaded rod; 12. Ball nut; 13. Support plate; 14. Nut; 15. Knob; 16. Mounting base. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1 one Figure 5 As shown, a vibration-resistant high-precision linear guide mechanism includes a guide body 1, a slider 2 slidably connected to the top surface of the guide body 1, and a top seat 3 fixedly connected to both ends of the guide body 1. An adjustment mechanism 4 is provided in the middle of the top seat 3, and side strips 5 are provided on both sides of the slider 2. A set of guide rings 6 are equidistantly arranged inside the side strip 5. A set of movable blocks 7 are movably connected inside the guide rings 6. A positioning bolt 9 is centrally arranged inside the movable block 7. During operation, traditional linear guides use limiting support members on the upper and lower sides of the guide rail to limit the slider 2, thereby achieving anti-shaking and stabilizing effects. However, the limiting member at the top of the linear guide rail penetrates the slider 2, which can easily cause motion interference to the slider 2. At the same time, the limiting member affects the load installation on the outside of the slider 2. Furthermore, both the upper and lower limiting members are in contact with the surface of the slider 2, and the increased contact area increases the movement resistance of the slider 2, leading to issues with the precision and service life of the slider 2. First, two top seats 3 are installed at both ends of the guide rail body 1, and then side strips 5 are installed on both sides of the top seats 3. The guide rings 6 inside the side strips 5 play a limiting and guiding role for the slider 2.

[0018] Furthermore, the adjusting mechanism 4 includes a lead screw 10, both ends of which are fixedly connected to threaded rods 11, and a ball nut 12 is sleeved on the outside of the lead screw 10, with a support plate 13 fixedly connected to both sides of the ball nut 12. During operation, the connection position between the guide assembly and the slider 2 can be adjusted by adjusting the adjustment mechanism 4 to avoid affecting the installation of the external load on the slider 2.

[0019] Furthermore, a guide groove 8 is provided in the center of the outer side of the guide ring 6. The guide groove 8 fits with the inner surface of the side strip 5. The inner end of the positioning bolt 9 passes through the movable block 7 and is threadedly connected to the slider 2. During operation, the guide ring 6 inside the side strip 5 is moved to the outside of the slider 2, and a groove is made at the same horizontal position on the outside of the slider 2. Then, the positioning bolt 9 is passed through the movable block 7 and connected to the threaded groove on the outside of the slider 2, so that the slider 2 and the guide ring 6 are connected as a whole. During the movement of the slider 2, the guide ring 6 and the side strip 5 play a role in limiting and preventing shaking of the slider 2. At the same time, when the guide ring 6 moves, the guide groove 8 contacts the inner surface of the side strip 5. With the movable block 7, the guide ring 6 rotates, reducing the resistance of the limiting and guiding.

[0020] Furthermore, the lead screw 10 is located in the center inside the top seat 3, and the lead screw 10 is movably connected to the top seat 3. The support plate 13 is located on the outside of the top seat 3, and the connection between the support plate 13 and the ball nut 12 is slidably connected to the top seat 3. During operation, the rotation of the lead screw 10 causes the ball nut 12 to move inside the top seat 3, thereby adjusting the vertical position of the support plate 13.

[0021] Furthermore, two threaded rods 11 are located at both ends of the top seat 3, and nuts 14 are threadedly connected to the outer side of the threaded rods 11. A knob 15 is fixedly connected to the top end of the upper threaded rod 11, and the inner sides of the two nuts 14 are respectively in contact with the end faces of the two ends of the top seat 3. During operation, after the installation position of the guide assembly is adjusted, rotate the nuts 14 on the outside of the two threaded rods 11 respectively, so that the two nuts 14 are in contact with the end faces of the top seat 3 respectively, thereby fixing the screw 10 in the position inside the top seat 3 and ensuring the stability of the guide assembly.

[0022] Furthermore, each end of the side strip 5 is fixedly connected to a mounting base 16, and the two mounting bases 16 are respectively fixedly connected to two support plates 13; During operation, the side strip 5 is placed on one side of the two top seats 3, so that the two mounting seats 16 are aligned with the two support plates 13 respectively, and connected by bolts to complete the installation of the side strip 5.

[0023] Working principle: First, install the two top seats 3 at both ends of the guide rail body 1. Then, rotate the knob 15, which drives the lead screw 10 to rotate. The rotation of the lead screw 10 causes the ball nut 12 to move inside the top seat 3, thereby adjusting the vertical position of the support plate 13 and thus adjusting the installation position of the guide assembly. This avoids affecting the subsequent load installation of the slider 2. After the installation position of the guide assembly is adjusted, rotate the nuts 14 on the outside of the two threaded rods 11 to make the two nuts 14 fit against the end faces of the top seats 3, thereby fixing the lead screw 10 in the position inside the top seat 3 and ensuring the installation stability of the guide assembly.

[0024] Move the side strip 5 to one side of the guide rail body 1, align the two mounting seats 16 with the two support plates 13 respectively, and connect them with bolts to complete the installation of the side strip 5. Move the guide ring 6 inside the side strip 5 so that it is located outside the slider 2, and make a groove at the same horizontal position on the outside of the slider 2. Then, pass the positioning bolt 9 through the movable block 7 and connect it with the threaded groove on the outside of the slider 2, so that the slider 2 and the guide ring 6 are connected as a whole. Then install another side strip 5, and at the same time connect the other side of the slider 2 with the corresponding guide ring 6 to complete the installation of the guide assembly.

[0025] During the movement of slider 2, guide ring 6 and side strip 5 play a role in limiting slider 2 and preventing vibration. At the same time, when guide ring 6 moves, guide groove 8 contacts the inner surface of side strip 5, generating friction. In conjunction with movable block 7, guide ring 6 rotates, reducing moving resistance and ensuring the moving accuracy and service life of slider 2.

[0026] 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, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vibration-resistant high-precision linear guide mechanism, comprising a guide body (1), wherein a slider (2) is slidably connected to the top surface of the guide body (1), and top seats (3) are fixedly connected to both ends of the guide body (1), characterized in that: An adjustment mechanism (4) is provided in the middle of the top seat (3), and side strips (5) are provided on both sides of the slider (2). A set of guide rings (6) are equidistantly arranged inside the side strip (5). A set of movable blocks (7) are movably connected inside the guide rings (6). A positioning bolt (9) is centrally arranged inside the movable block (7).

2. The anti-shake high-precision linear guide mechanism according to claim 1, characterized in that: The adjustment mechanism (4) includes a lead screw (10), both ends of which are fixedly connected to threaded rods (11), and a ball nut (12) is sleeved on the outside of the lead screw (10), and a support plate (13) is fixedly connected to both sides of the ball nut (12).

3. The anti-shake high-precision linear guide mechanism according to claim 1, characterized in that: The guide ring (6) has a guide groove (8) in the center on the outer side. The guide groove (8) fits the inner surface of the side strip (5). The inner end of the positioning bolt (9) passes through the movable block (7) and is threadedly connected to the slider (2).

4. The anti-shake high-precision linear guide mechanism according to claim 2, characterized in that: The lead screw (10) is located in the center inside the top seat (3), and the lead screw (10) is movably connected to the top seat (3). The support plate (13) is located on the outside of the top seat (3), and the connection between the support plate (13) and the ball nut (12) is slidably connected to the top seat (3).

5. The anti-shake high-precision linear guide mechanism according to claim 2, characterized in that: The two threaded rods (11) are located at both ends of the top seat (3). The outer side of the threaded rod (11) is threaded with a nut (14), and the top of the upper threaded rod (11) is fixedly connected with a knob (15). The inner sides of the two nuts (14) are respectively in contact with the end faces of the two ends of the top seat (3).

6. The anti-shake high-precision linear guide mechanism according to claim 2, characterized in that: Both ends of the side strip (5) are fixedly connected to mounting bases (16), and the two mounting bases (16) are fixedly connected to the two support plates (13) respectively.

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