A linear guide rail adjustable guide rail base

By combining the adjustable linear guide structure with limit blocks, springs, rubber blocks, and buffer blocks, the problems of cumbersome guide base adjustment and vibration impact are solved, achieving fast and precise adjustment and improved stability.

CN224679905UActive Publication Date: 2026-08-25JINAN HUAZE PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202521572527.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2026-08-25
Estimated Expiration
2035-07-25

AI Technical Summary

Technical Problem

The existing guide rail base adjustment process is cumbersome and it is difficult to guarantee repeatability and positioning accuracy. The multi-point bolt fastening structure leads to uneven stress, which affects the rapid changeover of equipment and the adaptation to multiple specifications.

Method used

The linear guide rail adopts an adjustable structure. Through the combination of limit blocks and springs, the guide rail base can be quickly adjusted and locked. Combined with the design of rubber blocks and buffer blocks, vibration energy is absorbed and attenuated, improving the stability and service life of the equipment.

Benefits of technology

It enables rapid and precise adjustment of the guide rail base, ensures compatibility with various slider width specifications, reduces the impact of vibration on the equipment, and extends the service life of the equipment.

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Abstract

The utility model relates to guide rail base technical field discloses a linear guide rail adjustable guide rail base, including the connecting seat, the connecting seat top is provided with guide rail base one and guide rail base two, guide rail base one and guide rail base two outer wall sliding connection have the sliding block, the lower surface fixed connection of guide rail base one has connecting block no.
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Description

Technical Field

[0001] This utility model relates to the field of guide rail base technology, and in particular to an adjustable linear guide rail base. Background Technology

[0002] In the field of modern precision machinery manufacturing, linear guides, as core transmission components, directly affect the positioning accuracy and motion stability of equipment due to their installation precision. As industrial equipment develops towards modularity and flexibility, traditional fixed guide rail bases are no longer sufficient to meet the production demands of rapid model changes and multi-specification adaptation. Especially in automated production line upgrades and machine tool modifications, it is often necessary to readjust the guide rail spacing to accommodate different slider specifications. This process often requires complete disassembly and reinstallation of the entire guide rail system, consuming significant time and making it difficult to guarantee installation accuracy.

[0003] The guide rail bases commonly found on the market today mainly adopt the following structure: an integral cast base with a positioning pin structure, which ensures the installation position through precision-machined pin holes, and a bolt-fastening adjustment mechanism that uses elongated holes and adjusting bolts to achieve limited position adjustment.

[0004] The existing guide rail base adjustment process is cumbersome and it is difficult to guarantee repeatability. Due to the use of a multi-point bolt fastening structure, all fixing bolts need to be completely loosened for each adjustment. Uneven stress is easily generated during the re-tightening process. Therefore, an adjustable linear guide rail base is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adjustable linear guide rail base, which aims to improve the existing guide rail base. The adjustment process is cumbersome and it is difficult to guarantee the repeatability of positioning accuracy. Due to the use of a multi-point bolt fastening structure, all fixing bolts need to be completely loosened for each adjustment, which can easily cause uneven stress during the re-tightening process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable linear guide rail base, including a connecting seat, a first guide rail base and a second guide rail base are provided above the connecting seat, sliders are slidably connected to the outer walls of the first guide rail base and the second guide rail base, a second connecting block is fixedly connected to the lower surface of the second guide rail base, a first connecting block is fixedly connected to the lower surface of the second guide rail base, a second connecting rod is fixedly connected to the inner wall of the first connecting block, the outer wall of the second connecting rod is slidably connected to the inner wall of the second connecting block, a first spring is sleeved on the outer wall of the second connecting rod, a first connecting plate is fixedly connected to the upper surface of the connecting seat, and an adjustment component is provided on the inner wall of the first connecting plate;

[0007] The adjustment assembly includes a second limiting block, a first connecting rod, and a second limiting block. The outer wall of the second limiting block is rotatably connected to the inner wall of the first connecting plate. The outer wall of the first connecting rod is fixedly connected to the inner wall of the second limiting block. The outer wall of the first limiting block is slidably connected to the first connecting rod and the inner wall of the first connecting plate.

[0008] Furthermore, a second connecting plate is fixedly connected to the outer wall of the second connecting rod, a connecting frame is fixedly connected to the lower surface of the guide rail base, and a first fixing block is fixedly connected to the lower surface of the connecting frame.

[0009] Furthermore, a connecting rod three is fixedly connected to the inner wall of the fixing block one, and a rotating block is rotatably connected to the outer wall of the connecting rod three.

[0010] Furthermore, the outer wall of the rotating block is rotatably connected to the inner wall of the fixed block one, and the outer wall of the rotating block is fixedly connected to the fixed block two.

[0011] Furthermore, a connecting plate three is slidably connected to the outer wall of the second fixing block, and a rubber block is fixedly connected to the upper surface of the connecting plate three.

[0012] Furthermore, a connecting block three is fixedly connected to the upper surface of the rubber block, and a spring two is sleeved between the connecting block three and the outer wall of the rubber block.

[0013] Furthermore, one end of the second spring is fixedly connected to the lower surface of the connecting frame, and a buffer block is fixedly connected to the lower surface of the third connecting plate.

[0014] Furthermore, a fixing plate is fixedly connected to the lower surface of the buffer block, and the outer wall of the fixing plate is slidably connected to the inner wall of the connecting seat.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, rotating the connecting rod one can release the compression through the irregular edge of the limiting block two. The spring one pushes the connecting block two to slide, causing the guide rail base one and the guide rail base two to separate precisely. After adjustment, the limiting block one is inserted into the limiting groove of the connecting rod one and the connecting plate one to achieve quick locking, thus achieving rapid adjustment and meeting the effect of various slider width specifications.

[0017] 2. In this utility model, when subjected to vibration, spring two first absorbs part of the energy through elastic deformation, and connecting block three simultaneously squeezes the rubber block, using the damping characteristics of rubber to further attenuate the impact force. At the same time, fixed block one drives connecting rod three to shake up and down, which is transmitted to fixed block two through rotating block, causing it to slide within connecting plate three. The dispersed vibration energy is then gathered and transmitted to buffer block for secondary buffering, avoiding base displacement or slider jamming caused by vibration, and extending the service life of the equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an adjustable linear guide rail base proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the slider part of an adjustable linear guide rail base proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the two-part structure of the connecting block of the adjustable linear guide rail base proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the connecting frame structure of an adjustable linear guide rail base proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the buffer block structure of an adjustable linear guide rail base proposed in this utility model.

[0023] Legend:

[0024] 1. Connecting seat; 2. Guide rail base one; 3. Guide rail base two; 4. Slider; 5. Connecting plate one; 6. Connecting plate two; 7. Limiting block one; 8. Connecting rod one; 9. Limiting block two; 10. Connecting rod two; 11. Spring one; 12. Connecting block one; 13. Connecting block two; 14. Connecting frame; 15. Connecting plate three; 16. Buffer block; 17. Spring two; 18. Connecting block three; 19. Rubber block; 20. Fixing block one; 21. Connecting rod three; 22. Rotating block; 23. Fixing block two; 24. Fixing plate. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1 - Figure 3This utility model provides an embodiment of an adjustable linear guide rail base, including a connecting seat 1. A first guide rail base 2 and a second guide rail base 3 are disposed above the connecting seat 1. The first guide rail base 2 and the second guide rail base 3 cooperate to form the running track foundation for a slider 4. During width adjustment, the slider 4 can be moved away from or closer to the second guide rail base 3. By changing the distance between the two, sliders 4 of different widths can be accommodated, providing stable support and guidance for the slider 4. The slider 4 is slidably connected to the outer walls of the first guide rail base 2 and the second guide rail base 3. A second connecting block 13 is fixedly connected to the lower surface of the first guide rail base 2, and a second connecting block is fixedly connected to the lower surface of the second guide rail base 3. Connecting block 12 has a connecting rod 10 fixedly connected to its inner wall, providing a guide rail for the sliding of connecting block 13, ensuring that connecting block 13 moves in a straight line when the width is adjusted, and driving the guide rail base 12 to move smoothly. The outer wall of connecting rod 10 is slidably connected to the inner wall of connecting block 13. A spring 11 is sleeved on the outer wall of connecting rod 10. When the limiting block 9 is released from compression, the spring pushes connecting block 13 to slide along connecting rod 10, providing power for the separation of guide rail base 12 and guide rail base 23. Connecting plate 5 is fixedly connected to the upper surface of connecting seat 1, and an adjustment component is provided on the inner wall of connecting plate 5.

[0027] The adjustment assembly includes a second limiting block 9, a first connecting rod 8, and a first limiting block 7. The outer wall of the second limiting block 9 is rotatably connected to the inner wall of the first connecting plate 5. The outer wall of the first connecting rod 8 is fixedly connected to the inner wall of the second limiting block 9. The edge of the second limiting block 9 is irregularly shaped. When rotating, it can squeeze or release the constraint on the first connecting block 12 and the second connecting block 13, thereby controlling the extension and contraction state of the first spring 11. The outer wall of the first limiting block 7 is slidably connected to the inner wall of the first connecting rod 8 and the first connecting plate 5. The first limiting block 7 is inserted into the limiting groove of the first connecting rod 8 and the first connecting plate 5. The position of the first connecting rod 8 and the second limiting block 9 is fixed by mechanical limiting to prevent them from rotating due to vibration during equipment operation and to ensure the stability of the width dimension after adjustment. The outer wall of the second connecting rod 10 is fixedly connected to the second connecting plate 6. The lower surface of the guide rail base 2 is fixedly connected to the connecting frame 14. The lower surface of the connecting frame 14 is fixedly connected to the fixing block 20.

[0028] Reference Figure 1 - Figure 5A connecting rod 21 is fixedly connected to the inner wall of the fixed block 20. A rotating block 22 is rotatably connected to the outer wall of the connecting rod 21. The outer wall of the rotating block 22 is rotatably connected to the inner wall of the fixed block 20. A fixed block 23 is fixedly connected to the outer wall of the rotating block 22. The fixed block 23 concentrates the energy transmitted by the rotating block 22 and transmits it to the buffer block 16. The vibration energy is concentrated through sliding motion, which improves the efficiency of the buffer block 16. A connecting plate 15 is slidably connected to the outer wall of the fixed block 23. A rubber block 19 is fixedly connected to the upper surface of the connecting plate 15. The rubber block 19 has good elasticity and damping. The characteristic is that it deforms under the compression of the connecting block 3 18, and releases the impact force through elastic recovery. It works with the spring 2 17 to achieve secondary energy absorption after initial buffering. The connecting block 3 18 is fixedly connected to the upper surface of the rubber block 19. The spring 2 17 is sleeved on the outer wall of the connecting block 3 18 and the rubber block 19. One end of the spring 2 17 is fixedly connected to the lower surface of the connecting frame 14. The buffer block 16 is fixedly connected to the lower surface of the connecting plate 3 15. The buffer block 16 completes secondary buffering through its own deformation. The fixed plate 24 is fixedly connected to the lower surface of the buffer block 16. The outer wall of the fixed plate 24 is slidably connected to the inner wall of the connecting seat 1.

[0029] Working principle: When the width of the guide rail base needs to be adjusted, hold the connecting rod 8 and rotate it. This will cause the limiting block 9 to rotate synchronously within the connecting plate 5. Because the edge of the limiting block 9 is irregularly shaped, its rotation will release the pressure on the connecting blocks 12 and 13, causing the compressed spring 11 between them to rebound. This pushes the connecting block 13 to slide along the connecting rod 10, thereby causing the guide rail bases 2 and 3 to move away from each other. After adjusting to the target width, insert the limiting block 7 into the connecting rod 8 and lock it into the limiting groove of the connecting plate 5, completing the locking process and ensuring that the guide rail bases 2 and 3 are properly aligned. The guide rail base 2 3 is adapted to sliders 4 of different widths. When the equipment is subjected to external vibration, spring 2 17 first absorbs part of the vibration energy through its own deformation, achieving initial buffering. At the same time, connecting block 3 18 is pressed downward to squeeze rubber block 19, and the elastic deformation of rubber block 19 further releases the impact force. In addition, fixed block 1 20 drives connecting rod 3 21 to shake up and down, causing rotating block 22 to drive fixed block 2 23 to slide within connecting plate 3 15, so that the vibration energy is concentrated in the middle and then transmitted to buffer block 16 below connecting plate 3 15. The deformation of buffer block 16 completes secondary buffering, effectively weakening the impact of vibration.

[0030] Finally, it should be noted that the above description is only 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 adjustable linear guide rail base, comprising a connecting seat (1), characterized in that: The connecting seat (1) is provided with a guide rail base one (2) and a guide rail base two (3) above it. The outer walls of the guide rail base one (2) and the guide rail base two (3) are slidably connected with sliders (4). The lower surface of the guide rail base one (2) is fixedly connected with a connecting block two (13). The lower surface of the guide rail base two (3) is fixedly connected with a connecting block one (12). The inner wall of the connecting block one (12) is fixedly connected with a connecting rod two (10). The outer wall of the connecting rod two (10) is slidably connected to the inner wall of the connecting block two (13). The outer wall of the connecting rod two (10) is sleeved with a spring one (11). The upper surface of the connecting seat (1) is fixedly connected with a connecting plate one (5). The inner wall of the connecting plate one (5) is provided with an adjustment component. The adjustment assembly includes a second limiting block (9), a first connecting rod (8), and a first limiting block (7). The outer wall of the second limiting block (9) is rotatably connected to the inner wall of the first connecting plate (5). The outer wall of the first connecting rod (8) is fixedly connected to the inner wall of the second limiting block (9). The outer wall of the first limiting block (7) is slidably connected to the inner wall of the first connecting rod (8) and the inner wall of the first connecting plate (5).

2. The adjustable linear guide rail base according to claim 1, characterized in that: The outer wall of the connecting rod 2 (10) is fixedly connected to the connecting plate 2 (6), the lower surface of the guide rail base 1 (2) is fixedly connected to the connecting frame (14), and the lower surface of the connecting frame (14) is fixedly connected to the fixing block 1 (20).

3. The adjustable linear guide rail base according to claim 2, characterized in that: The inner wall of the fixed block 1 (20) is fixedly connected to the connecting rod 3 (21), and the outer wall of the connecting rod 3 (21) is rotatably connected to the rotating block (22).

4. The adjustable linear guide rail base according to claim 3, characterized in that: The outer wall of the rotating block (22) is rotatably connected to the inner wall of the fixed block one (20), and the outer wall of the rotating block (22) is fixedly connected to the fixed block two (23).

5. The adjustable linear guide rail base according to claim 4, characterized in that: The outer wall of the fixed block 2 (23) is slidably connected to the connecting plate 3 (15), and the upper surface of the connecting plate 3 (15) is fixedly connected to the rubber block (19).

6. The adjustable linear guide rail base according to claim 5, characterized in that: A connecting block three (18) is fixedly connected to the upper surface of the rubber block (19), and a spring two (17) is sleeved on the outer wall of the connecting block three (18) and the rubber block (19).

7. The adjustable linear guide rail base according to claim 6, characterized in that: One end of the second spring (17) is fixedly connected to the lower surface of the connecting frame (14), and a buffer block (16) is fixedly connected to the lower surface of the third connecting plate (15).

8. The adjustable linear guide rail base according to claim 7, characterized in that: A fixing plate (24) is fixedly connected to the lower surface of the buffer block (16), and the outer wall of the fixing plate (24) is slidably connected to the inner wall of the connecting seat (1).