Detachable rolling linear guide rail pair

Abstract

The invention relates to the technical field of precision mechanical transmission, in particular to a detachable rolling linear guide rail pair which comprises a bottom plate, two guide rail bodies are connected to the bottom of the bottom plate, a second limiting block is integrally formed at one end of each guide rail body, a first limiting block is arranged on the outer side of each guide rail body in a sleeving mode, and a plurality of fastening bolts are connected into each first limiting block in a threaded mode. The top of the fastening bolt is sleeved with a locking block, and the locking block and the inclined face extrude each other. Through accurate butt joint of the second limiting blocks and the clamping grooves, splicing and assembling of multiple sets of guide rails can be rapidly completed, complex tools are not needed, only the limiting blocks and the clamping grooves need to be separated during disassembly, operation is easy, the installation requirements of different lengths can be flexibly met, the size can be reduced after disassembly, transportation and storage are convenient, the carrying and storage cost is greatly reduced, and meanwhile the assembly efficiency is improved. And in cooperation with an extrusion fixing structure of a first limiting block, a fastening bolt and an inclined plane, and in combination with dual reinforcement of a positioning bolt and a bolt groove, the stability of guide rail installation is guaranteed on the basis of rapid connection.

Description

Technical Field

[0001] This invention relates to the field of precision mechanical transmission technology, and specifically to a detachable rolling linear guide pair. Background Technology

[0002] As a core component in the field of precision mechanical transmission, rolling linear guide pairs are widely used in various industrial equipment such as CNC machine tools, automated production lines, and robots. The rationality of their structure directly determines the positioning accuracy, motion stability, and service life of the equipment. They are key basic components to ensure the efficient operation of precision machinery. With the development of modern industry towards modularization and flexibility, equipment has placed higher demands on the adaptability, ease of installation, and maintenance efficiency of guide pairs. The structural design of traditional rolling linear guide pairs has gradually revealed many limitations, making it difficult to meet the needs of practical applications. However, in existing technologies, rolling linear guide pairs are mainly divided into two types of designs: integral and segmented. The early mainstream integral guide design adopts an integrated molding structure, which can ensure the straightness and structural strength of the guide itself, but has significant drawbacks: On the one hand, the length of the integral guide is fixed and cannot be flexibly adjusted according to the equipment installation requirements. For long-stroke transmission scenarios, it is necessary to customize ultra-long guides, which not only has high production and manufacturing costs, but also makes the ultra-long guides prone to deformation due to collisions and compression during transportation, resulting in high transportation difficulty and costs. On the other hand, the installation and debugging process of integral guides is complicated, requiring the use of precision calibration tools for positioning and fixing, resulting in a long installation cycle, which greatly reduces the efficiency of equipment assembly. Moreover, subsequent maintenance requires complete disassembly, which affects the continuity of production operations. Most segmented guide rails use a simple bolt connection method. During the assembly process, limit rods are usually used to clamp the guide rail body on both sides and then the limit clamps are used to tighten it. Then the bolts are screwed in one by one for positioning. In this process, it is difficult to balance the connection strength and positioning accuracy. Gaps or displacements are likely to occur at the splicing points, which will increase the overall straightness deviation of the guide rail and thus affect the sliding accuracy, failing to meet the requirements of precision transmission. Meanwhile, existing sliders mostly use snap rings for limiting and bolts for fixing. The disassembly and assembly process requires the use of special tools such as wrenches and calipers, which is cumbersome. This not only increases the workload of maintenance personnel, but also makes it easy to damage the contact surface of the slider or guide rail due to improper operation.

[0003] Therefore, it is necessary to invent a detachable rolling linear guide pair to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a detachable rolling linear guide pair to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a detachable rolling linear guide pair, comprising a base plate, two sets of guide rail bodies connected to the bottom of the base plate, a second limiting block integrally formed at one end of each guide rail body, and a slot adapted to the second limiting block at the other end of each guide rail body, the two sets of guide rail bodies being connected to the slot via the second limiting block, inclined surfaces on both sides of the bottom of each guide rail body, a first limiting block sleeved on the outer side of each guide rail body, multiple sets of fastening bolts internally threaded onto the first limiting block, a locking block sleeved on the top of each fastening bolt, and the locking block pressing against the inclined surface; A slider is slidably connected to the outer side of the guide rail body. Multiple sets of sliding components are movably connected within the slider in a symmetrical structure. A groove is provided on the outer side of the guide rail body to cooperate with the sliding components. Extrusion blocks are movably connected to both sides of the slider in a symmetrical structure. A connecting rod is fixedly installed inside the extrusion block. Protrusions are provided on both sides of the connecting rod at the end away from the extrusion block. A gear is rotatably connected to the bottom of the protrusion. A movable rod is slidably connected within the slider in a symmetrical structure. The movable rod has an L-shaped structure. A locking block is fixedly connected to one end of the movable rod, and a rack is embedded in the other end of the movable rod. The rack meshes with the gear. A fixing plate is fixedly installed within the slider in a symmetrical structure. Multiple sets of second springs are provided between the fixing plate and the inner wall of the connecting rod. A first spring is provided between the fixing plate and the connecting rod. The locking block can move through the inside of the slider, and a limiting groove is provided on the outside of the guide rail body to cooperate with the locking block.

[0006] Preferably, the sliding assembly includes a ball and a retainer, and the slider has a return groove that cooperates with the ball and the retainer.

[0007] Preferably, the slider is connected to oil storage blocks at both ends, and an oil scraper is connected to the outside of the oil storage blocks. The slider is provided with an oil lubrication groove that works with the oil storage blocks. An oil injection pipe is connected to the outside of the oil storage blocks. One end of the oil lubrication groove is connected to the inside of the oil storage blocks, and the other end extends to the rolling area of ​​the sliding component.

[0008] Preferably, the guide rail body has multiple sets of positioning grooves, and multiple sets of positioning bolts are provided in the positioning grooves. The bottom of the base plate has multiple sets of bolt grooves that cooperate with the positioning bolts and the fastening bolts.

[0009] Preferably, the inner side of the slider is provided with a movable groove for use with the locking block, the depth of the movable groove is greater than the length of the locking block, and the inner wall of the movable groove is provided with a guide protrusion, and the outer side of the locking block is provided with a guide groove adapted to the guide protrusion.

[0010] Preferably, the outer side of the extrusion block is provided with anti-slip texture, and the outer surface of the extrusion block and the side of the slider are slightly concave inward.

[0011] Preferably, a guide sleeve is provided at the passage between the connecting rod and the slider, and the inner wall of the guide sleeve slides in contact with the outer side of the connecting rod.

[0012] Preferably, the locking block has an inclined surface on the side facing the inclined surface that is at the same angle as the inclined surface, and a wear-resistant pad is provided between the inclined surface and the inclined surface.

[0013] The technical effects and advantages provided by the present invention in the above technical solution are as follows: 1. This invention enables the rapid assembly of multiple guide rails through the precise docking of the second limiting block and the slot. No complex tools are required, and disassembly only requires separating the limiting block and the slot. The operation is simple, which can flexibly adapt to different length installation requirements and reduce the volume after disassembly, making it convenient for transportation and storage and greatly reducing handling and storage costs. At the same time, the extrusion and fixing structure of the first limiting block, fastening bolts and inclined surface, combined with the double reinforcement of positioning bolts and bolt slots, ensures the stability of guide rail installation on the basis of rapid connection. 2. The slider is installed by direct insertion, and disassembly does not require additional disassembly of the slider itself. It can be directly removed from the end of the guide rail body. If the slider needs to be maintained separately, the guide rail body does not need to be disassembled, only the slider needs to be removed, without affecting the overall installation status of the guide rail. In addition, the positioning and unlocking mechanism of the slider is independent of the guide rail fixing structure. When disassembling the slider, there is no need to loosen the fixing parts of the guide rail, which further improves the convenience of maintenance and replacement and reduces the complexity and time cost of operation. Attached Figure Description

[0014] Figure 1 This is a first-view schematic diagram of the overall structure of the present invention; Figure 2 This is a second-view schematic diagram of the overall structure of the present invention; Figure 3 This is a first-view schematic diagram of the split structure of the present invention; Figure 4 This is a second-view schematic diagram of the split structure of the present invention; Figure 5 This is a first-view schematic diagram of the slider cross-sectional structure of the present invention; Figure 6 This is a second-view schematic diagram of the slider cross-sectional structure of the present invention.

[0015] Explanation of reference numerals in the attached figures: 1. Base plate; 2. Guide rail body; 3. Slider; 4. Positioning groove; 5. First limiting block; 6. Locking block; 7. Positioning bolt; 8. Oil storage block; 9. Oil scraper; 10. Sliding assembly; 11. Extrusion block; 12. Connecting rod; 13. Fixing plate; 14. First spring; 15. Second spring; 16. Protrusion; 17. Gear; 18. Movable rod; 19. Rack; 20. Locking block; 21. Movable groove; 22. Limiting groove; 23. Slide groove; 24. Inclined surface; 25. Fastening bolt; 26. Second limiting block; 27. Slot. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0017] This invention provides a detachable rolling linear guide pair as shown in Figures 1-2, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the system includes a base plate 1, with two sets of guide rail bodies 2 connected to the bottom of the base plate 1. One end of each guide rail body 2 is integrally formed with a second limiting block 26, and the other end of each guide rail body 2 is provided with a slot 27 that matches the second limiting block 26. The two sets of guide rail bodies 2 are connected to the slot 27 through the second limiting block 26. Inclined surfaces 24 are provided on both sides of the bottom of the guide rail body 2. A first limiting block 5 is fitted on the outer side of the guide rail body 2. Multiple sets of fastening bolts 25 are internally threaded onto the first limiting block 5. A locking block 6 is fitted on the top of each fastening bolt 25, and the locking block 6 is pressed against the inclined surface 24. A slider 3 is slidably connected to the outside of the guide rail body 2. Multiple sets of sliding components 10 are movably connected in a symmetrical structure inside the slider 3. A groove 23 is opened on the outside of the guide rail body 2 to cooperate with the sliding components 10. An extrusion block 11 is movably connected to both sides of the slider 3 in a symmetrical structure. A connecting rod 12 is fixedly installed inside the extrusion block 11. Protrusions 16 are provided on both sides of the end of the connecting rod 12 away from the extrusion block 11. A gear 17 is rotatably connected to the bottom of the protrusion 16. A movable rod 18 is slidably connected in a symmetrical structure inside the slider 3. The movable rod 18 has an L-shaped structure. A locking block 20 is fixedly connected to one end of the movable rod 18. A rack 19 is embedded and connected to the other end of the movable rod 18. The rack 19 meshes with the gear 17. A fixing plate 13 is fixedly installed in a symmetrical structure inside the slider 3. Multiple sets of second springs 15 are provided between the fixing plate 13 and the inner wall of the connecting rod 12. A first spring 14 is provided between the fixing plate 13 and the connecting rod 12. The locking block 20 can move through the inner side of the slider 3, and the outer side of the guide rail body 2 is provided with a limiting groove 22 that works in conjunction with the locking block 20. By precisely connecting the second limiting block 26 at one end of the guide rail body 2 with the slot 27 of another set of guide rail bodies 2, the splicing and assembly of multiple sets of guide rails is completed. Then, the spliced ​​guide rail body 2 is placed on the bottom of the base plate 1, the first limiting block 5 is put on and the fastening bolt 25 inside is tightened, so that the locking block 6 at the top of the fastening bolt 25 is pressed and fitted with the inclined surfaces 24 on both sides of the bottom of the guide rail body 2, so as to achieve a stable fixation of the guide rail body 2 with the base plate 1 and the first limiting block 5. When installing slider 3, it is directly sleeved on the outside of guide rail body 2. Through the cooperation of sliding component 10 inside slider 3 with sliding groove 23 of guide rail body 2, slider 3 can slide smoothly along guide rail body 2. When it is necessary to fix the position of slider 3, press the squeezing blocks 11 on both sides of slider 3 to drive connecting rod 12 to move inward and compress first spring 14 and second spring 15. Gear 17 at the bottom of protrusion 16 at the end of connecting rod 12 moves with connecting rod 12 and meshes with rack 19 on movable rod 18 to drive L-shaped movable rod 18 to drive locking block 20 through the inside of slider 3 and into limiting groove 22 of guide rail body 2 to complete slider 3 positioning. After releasing squeezing block 11, first spring 14 and second spring 15 reset and drive connecting rod 12, gear 17, rack 19 and movable rod 18 back to the initial position. Locking block 20 disengages from limiting groove 22 and slider 3 returns to sliding state. During disassembly, first loosen the fastening bolt 25 to separate the locking block 6 from the inclined surface 24, remove the first limiting block 5, and then separate the second limiting block 26 and the slot 27 of each group of guide rail bodies 2 to complete the disassembly of the guide rail. The slider 3 can be directly removed from the end of the guide rail body 2. The guide rail can be quickly assembled and disassembled by the cooperation of the second limiting block 26 and the slot 27, which can adapt to the installation requirements of different lengths. After disassembly, it is easy to transport and store. The combination design of the first limiting block 5, fastening bolt 25, locking block 6 and inclined surface 24 can quickly achieve stable fixation of the guide rail and improve installation efficiency. The sliding component 10 of the slider 3 cooperates with the slide groove 23 to ensure smooth and accurate sliding. The positioning mechanism composed of the pressing block 11, gear 17 rack 19 transmission and spring reset can realize the rapid positioning and unlocking of the slider 3. It is easy to operate, improves the stability and ease of use, and can adapt to the linear motion requirements of various industrial equipment.

[0018] Further, such as Figure 5 , Figure 6 As shown, the sliding assembly 10 includes a ball and a retainer. The slider 3 has a return groove that works with the ball and the retainer. The ball and the retainer allow the ball to slide flexibly in the return groove, and the slider 3 can move flexibly on the outside of the guide rail body 2.

[0019] Further, such as Figure 3 , Figure 4As shown, the slider 3 is connected to oil storage blocks 8 at both ends, and an oil scraper 9 is connected to the outside of the oil storage blocks 8. The slider 3 is provided with an oil lubrication groove that works with the oil storage blocks 8. An oil injection pipe is connected to the outside of the oil storage blocks 8. One end of the oil lubrication groove is connected to the inside of the oil storage blocks 8, and the other end extends to the rolling area of ​​the sliding component 10. Lubricating oil is injected into the oil storage blocks 8 through the oil injection pipe. The oil lubrication groove is used to evenly spread the lubricating oil onto the sliding component 10 inside the slider 3. The oil scraper 9 is used to scrape away any excess lubricating oil.

[0020] Further, such as Figure 1 , Figure 2 As shown, the guide rail body 2 has multiple sets of positioning grooves 4, and multiple sets of positioning bolts 7 are provided in the positioning grooves 4. The bottom of the base plate 1 has multiple sets of bolt grooves that are used to cooperate with the positioning bolts 7 and the fastening bolts 25. The positioning grooves 4 and the positioning bolts 7 are used to securely fix the guide rail body 2 on the base plate 1.

[0021] Further, such as Figure 5 , Figure 6 As shown, the inner side of the slider 3 is provided with a movable groove 21 that works with the locking block 20. The depth of the movable groove 21 is greater than the length of the locking block 20, and the inner wall of the movable groove 21 is provided with a guide protrusion. The outer side of the locking block 20 is provided with a guide groove that matches the guide protrusion. The movable groove 21 and the guide groove are provided so that the locking block 20 can extend and retract flexibly, so as to quickly lock and unlock the slider 3 from the guide rail body 2.

[0022] Further, such as Figure 1 , Figure 2 , Figure 3 As shown, the outer side of the extrusion block 11 is provided with anti-slip texture, the outer surface of the extrusion block 11 and the side of the slider 3 are slightly concave inward, and a guide sleeve is provided at the through point of the connecting rod 12 and the slider 3, and the inner wall of the guide sleeve slides and fits against the outer side of the connecting rod 12.

[0023] Further, such as Figure 1 , Figure 2 As shown, the locking block 6 has an inclined surface on the side facing the inclined surface 24 with the same angle as the inclined surface 24, and a wear-resistant pad is provided between the inclined surface and the inclined surface 24.

[0024] Working principle of this invention: First, the guide rail body 2 precisely connects with the slot 27 of another set of guide rails through the second limiting block 26 integrally formed at the end, realizing the rapid splicing of multiple sets of guide rails and adapting to different length installation requirements. When disassembling, only the second limiting block 26 and the slot 27 need to be separated, which is convenient for transportation and storage. After the splicing is completed, the guide rail body 2 is placed at the bottom of the base plate 1, the first limiting block 5 is put on and the internal fastening bolts 25 are tightened, so that the locking block 6 at the top of the bolt is pressed and fitted with the inclined surface 24 on both sides of the bottom of the guide rail. At the same time, with the positioning groove 4 of the guide rail body 2, the positioning bolt 7 and the bolt groove of the base plate 1, a double fixing structure is formed to ensure that the guide rail and the base plate 1 are firmly connected, which greatly improves the installation efficiency. Secondly, the slider 3 cooperates with the sliding groove 23 on the outside of the guide rail through the internally symmetrically arranged sliding component 10 (ball and retainer), combined with the return groove inside the slider 3, to achieve high-precision smooth sliding along the guide rail. The ball of the sliding component 10 can roll flexibly in the return groove, reducing motion resistance. When it is necessary to fix the position of the slider 3, press the extrusion block 11 with anti-slip texture on both sides of the slider 3, drive the connecting rod 12 to move inward and compress the first spring 14 and the second spring 15. The gear 17 at the bottom of the protrusion 16 at the end of the connecting rod 12 meshes with the rack 19 on the movable rod 18 to drive the L-shaped movable rod 18 to drive the locking block 20 through the inside of the slider 3 and lock into the limiting groove 22 of the guide rail to complete the positioning. After releasing the extrusion block 11, the first and second springs 15 reset, drive each component back to the initial position, the locking block 20 disengages from the limiting groove 22, and the slider 3 returns to the sliding state. The positioning and unlocking operations are convenient and efficient. It is worth mentioning that the oil storage blocks 8 at both ends of the slider 3 inject lubricating oil through the oil injection pipe, and the lubricating oil is evenly delivered to the rolling area of ​​the sliding component 10 through the oil lubrication groove to ensure smooth sliding and extend service life. The oil scraper 9 on the outside of the slider 3 can scrape off excess leaked lubricating oil in time to avoid contaminating the equipment. The depth of the movable groove 21 in the movable area of ​​the locking block 20 is greater than the length of the locking block 20. The inner wall guide protrusion cooperates with the outer guide groove of the locking block 20 to allow the locking block 20 to extend and retract flexibly. The guide sleeve at the point where the connecting rod 12 passes through the slider 3 improves the stability of the movement of the connecting rod 12. The wear-resistant pad between the locking block 6 and the guide rail inclined surface 24 enhances the wear resistance of the structure. The positioning bolt 7 of the guide rail body 2 and the bolt groove of the base plate 1 are precisely matched to further strengthen the connection stability between the guide rail and the base plate 1 and prevent displacement during use. Finally, the guide rail assembly, through the cooperation of the second limiting block 26 and the slot 27 bracket, realizes the core functions of quick assembly and disassembly of the guide rail, smooth sliding of the slider 3 and precise positioning. It takes into account installation efficiency, use stability and operation convenience. After disassembly, it is easy to transport and store. The sliding component 10 and the lubrication system ensure motion accuracy and service life. The gear 17 rack 19 transmission and spring reset mechanism simplify the operation process. Overall, it is suitable for diverse application scenarios in industrial production.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A detachable rolling linear guide pair, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is connected to two sets of guide rail bodies (2). One end of the guide rail body (2) is integrally formed with a second limiting block (26). The other end of the guide rail body (2) is provided with a slot (27) that is adapted to the second limiting block (26). The two sets of guide rail bodies (2) are connected to the slot (27) through the second limiting block (26). The bottom sides of the guide rail body (2) are provided with inclined surfaces (24). The outer side of the guide rail body (2) is provided with a first limiting block (5). The first limiting block (5) is internally threaded with multiple sets of fastening bolts (25). The top of the fastening bolts (25) is provided with a locking block (6). The locking block (6) is pressed against the inclined surface (24). The guide rail body (2) is slidably connected to a slider (3) on its outer side. Multiple sets of sliding components (10) are movably connected in a symmetrical structure inside the slider (3). A groove (23) is provided on the outer side of the guide rail body (2) to cooperate with the sliding components (10). Extrusion blocks (11) are movably connected in a symmetrical structure on both sides of the slider (3). A connecting rod (12) is fixedly installed inside the extrusion block (11). Protrusions (16) are provided on both sides of the connecting rod (12) away from the extrusion block (11). A gear (17) is rotatably connected to the bottom of the protrusion (16). The slider ( 3) A movable rod (18) is slidably connected in a symmetrical structure. The movable rod (18) has an L-shaped structure. A locking block (20) is fixedly connected to one end of the movable rod (18). A rack (19) is embedded in the other end of the movable rod (18). The rack (19) meshes with the gear (17). A fixing plate (13) is fixedly installed in the slider (3) in a symmetrical structure. Multiple sets of second springs (15) are provided between the fixing plate (13) and the inner wall of the connecting rod (12). A first spring (14) is provided between the fixing plate (13) and the connecting rod (12). The locking block (20) can move through the inside of the slider (3), and the outer side of the guide rail body (2) is provided with a limiting groove (22) for use with the locking block (20).

2. The detachable rolling linear guide pair according to claim 1, characterized in that: The sliding assembly (10) includes a ball and a retainer, and the slider (3) has a return groove that works in conjunction with the ball and the retainer.

3. The detachable rolling linear guide pair according to claim 1, characterized in that: The slider (3) is connected to oil storage blocks (8) at both ends. An oil scraper (9) is connected to the outside of the oil storage block (8). An oil lubrication groove is provided inside the slider (3) to cooperate with the oil storage block (8). An oil injection pipe is connected to the outside of the oil storage block (8). One end of the oil lubrication groove is connected to the inside of the oil storage block (8), and the other end extends to the rolling area of ​​the sliding component (10).

4. A detachable rolling linear guide pair according to claim 3, characterized in that: The guide rail body (2) has multiple sets of positioning grooves (4), and multiple sets of positioning bolts (7) are provided in the positioning grooves (4). The bottom of the base plate (1) has multiple sets of bolt grooves that cooperate with the positioning bolts (7) and the fastening bolts (25).

5. A detachable rolling linear guide pair according to claim 1, characterized in that: The slider (3) has an inner side with a movable groove (21) for use with the locking block (20). The depth of the movable groove (21) is greater than the length of the locking block (20), and the inner wall of the movable groove (21) is provided with a guide protrusion. The outer side of the locking block (20) is provided with a guide groove that matches the guide protrusion.

6. A detachable rolling linear guide pair according to claim 5, characterized in that: The outer side of the extrusion block (11) is provided with anti-slip texture, and the outer surface of the extrusion block (11) and the side of the slider (3) are slightly concave inward.

7. A detachable rolling linear guide pair according to claim 1, characterized in that: A guide sleeve is provided at the penetration point between the connecting rod (12) and the slider (3), and the inner wall of the guide sleeve slides and fits against the outer side of the connecting rod (12).

8. A detachable rolling linear guide pair according to claim 1, characterized in that: The locking block (6) has an inclined surface on one side facing the inclined surface (24) with the same angle as the inclined surface (24), and a wear-resistant pad is provided between the inclined surface and the inclined surface (24).

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