Self-lubricating guide rail structure of numerical control lathe
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGYANG GUOTEER MECHANICAL & ELECTRICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-19
AI Technical Summary
The existing CNC lathe guideways have poor self-lubrication, leading to frequent wear and failures, which increases maintenance costs and downtime.
A self-lubricating guide rail structure was designed. Through the cooperation of components such as slider, fixed block, sliding groove, sliding block, locking box and spring, the automatic supply of lubricating oil and continuous friction are realized, ensuring that the slider runs smoothly on the guide rail.
It effectively extends the duration of lubrication, reduces the need for manual maintenance, and lowers equipment maintenance costs and downtime.
Smart Images

Figure CN224373374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of CNC lathes, and in particular to a self-lubricating guide rail structure for CNC lathes. Background Technology
[0002] CNC lathes are among the most widely used CNC machine tools. They are mainly used for cutting and machining the inner and outer cylindrical surfaces, inner and outer conical surfaces with arbitrary cone angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads of shaft-type or disc-type parts. They can also perform grooving, drilling, reaming, boring, and other machining operations. CNC machine tools automatically process the workpieces according to a pre-programmed machining program. Because automatic machining is required, the most common and widely used component is the guide rail. However, most existing guide rails do not have good self-lubricating properties. Therefore, a self-lubricating guide rail structure for CNC lathes is particularly needed.
[0003] Most existing guide rails have poor self-lubrication during use, and cannot maintain the lubrication between the slider and the guide rail for a long time, leading to wear and failure. Manual lubrication is required during equipment operation, which increases maintenance costs and downtime. Utility Model Content
[0004] The purpose of this utility model is to provide a self-lubricating guide rail structure for CNC lathes, in order to solve the problem mentioned in the background art that most existing guide rails have poor self-lubrication effect during use, cannot maintain the lubrication state between the slider and the guide rail for a long time, resulting in wear and failure, and require manual lubrication during equipment operation, which increases maintenance costs and downtime.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-lubricating guide rail structure for a CNC lathe, comprising a guide rail, a slider slidably connected to the outer surface of the guide rail, a fixing block fixedly connected to one side surface of the guide rail, a sliding groove formed on one side surface of the fixing block, a sliding block slidably connected to the inner surface of the sliding groove, a first gasket fixedly connected to one side surface of the sliding block, a limiting groove formed on one side surface of the first gasket, a first spring fixedly connected to the inner surface of the limiting groove, a locking box fixedly connected to one end surface of the first spring, lubricating oil locked to the inner surface of the locking box, a limiting box fixedly connected to the outer surface of the locking box, a second spring fixedly connected to the inner surface of the limiting box, a limiting block fixedly connected to one end surface of the second spring, a limiting groove formed on the outer surface of the limiting groove, a sliding groove formed on one side surface of the first gasket, and a baffle locked to the inner surface of the sliding groove.
[0006] Preferably, the locking box and the first spring form a telescopic structure, and the locking box is symmetrically arranged about the central axis of the guide rail.
[0007] Preferably, the limiting block and the second spring constitute a telescopic structure, and the limiting block is symmetrically arranged about the central axis of the locking box.
[0008] Preferably, the limiting slots are symmetrically arranged around the central axis of the limiting groove, and the limiting slots are evenly distributed on the outer surface of the limiting groove.
[0009] Preferably, the limiting slot and the limiting block are engaged and connected.
[0010] Preferably, the locking box and the limiting groove are slidably connected.
[0011] Preferably, a first fixing member is fixedly connected to one side surface of the first gasket, a threaded rod is rotatably connected to the inner side surface of the first fixing member, a threaded member is threadedly connected to the outer side surface of the threaded rod, a second fixing member is engagedly connected to the outer side surface of the threaded rod, and a second gasket is fixedly connected to one side surface of the second fixing member.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This self-lubricating guide rail structure for CNC lathes firstly slides the slider onto the guide rail, then the first and second shims are respectively made to have their sliding blocks on one side surface inserted into the sliding grooves on the fixed block. Then, the threaded rod on the first fixed member is rotated to be inserted into the second fixed member. Next, the threaded member is tightened so that one side surface of the threaded member is in close contact with one side surface of the second fixed member. Then, the baffles on the first and second shims are removed. At this time, under the elastic force of the first spring, the locking box will be pushed, and the locking box will push out the lubricating oil, so that one end surface of the lubricating oil is in close contact with the guide rail. At this time, the inclined surface of the limiting block on the outside of the locking box is pressured, squeezing the second spring and causing it to retract into the limiting box. Then, it continues to move forward. When it touches the next limiting slot, the second spring pops the limiting block out and locks it in the limiting slot. During operation, the lubricating oil will continuously rub against the guide rail, thereby making the slider slide more smoothly on the guide rail. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;
[0014] Figure 2 This is a schematic diagram of the structure in which the fixing block and the sliding groove of this utility model cooperate with each other;
[0015] Figure 3 This is a schematic diagram of the mating structure of the threaded rod and threaded component of this utility model;
[0016] Figure 4 This is a schematic diagram of the interaction between the limiting groove and the lubricating oil in this utility model;
[0017] Figure 5 This is a schematic diagram of the structure in which the first spring and the engaging groove of this utility model cooperate with each other.
[0018] In the diagram: 1. Guide rail; 2. Slider; 3. Fixing block; 4. Sliding groove; 5. Sliding block; 6. First washer; 7. First fixing component; 8. Threaded rod; 9. Threaded component; 10. Second fixing component; 11. Second washer; 12. Limiting groove; 13. First spring; 14. Engaging box; 15. Lubricating oil; 16. Limiting box; 17. Second spring; 18. Limiting block; 19. Limiting slot; 20. Sliding slot; 21. Baffle. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-5This utility model provides a technical solution: a self-lubricating guide rail structure for a CNC lathe, including a guide rail 1, a slider 2 slidably connected to the outer surface of the guide rail 1, a fixing block 3 fixedly connected to one side surface of the guide rail 1, a sliding groove 4 formed on one side surface of the fixing block 3, a slider 5 slidably connected to the inner surface of the sliding groove 4, a first washer 6 fixedly connected to one side surface of the sliding block 5, a first fixing member 7 fixedly connected to one side surface of the first washer 6, a threaded rod 8 rotatably connected to the inner surface of the first fixing member 7, a threaded member 9 threadedly connected to the outer surface of the threaded rod 8, a second fixing member 10 engagingly connected to the outer surface of the threaded rod 8, and a first fixing member 9 fixedly connected to one side surface of the second fixing member 10. Two gaskets 11, a limiting groove 12 is formed on one side surface of the first gasket 6, a first spring 13 is fixedly connected to the inner surface of the limiting groove 12, a locking box 14 is fixedly connected to one end surface of the first spring 13, a lubricating oil 15 is locked to the inner surface of the locking box 14, a limiting box 16 is fixedly connected to the outer surface of the locking box 14, a second spring 17 is fixedly connected to the inner surface of the limiting box 16, a limiting block 18 is fixedly connected to one end surface of the second spring 17, a limiting groove 19 is formed on the outer surface of the limiting groove 12, a sliding groove 20 is formed on one side surface of the first gasket 6, a baffle 21 is locked to the inner surface of the sliding groove 20, and the connection is made via guide rail 1, slider 2, and fixed... The components 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, and 21 are arranged as follows: In actual use, the slider 2 is first slidably locked onto the guide rail 1. Then, the first and second washers 6 and 11 are respectively positioned so that the sliding block 5 on one side of their surfaces is locked into the sliding groove 4 on the fixed block 3. Next, the threaded rod 8 on the first fixed part 7 is rotated to lock into the second fixed part 10. Finally, the threaded part 9 is tightened to secure the threaded part... One side surface of 9 is pressed against one side surface of the second fixing member 10. Then, the baffle 21 on the first gasket 6 and the second gasket 11 is removed. At this time, under the elastic force of the first spring 13, the locking box 14 will be pushed. The locking box 14 will push out the lubricating oil 15, so that one end surface of the lubricating oil 15 is pressed against the guide rail 1. At this time, the inclined surface of the limiting block 18 on the outside of the locking box 14 is pressured, squeezing the second spring 17 and causing it to retract into the limiting box 16. Then it continues to move forward. When it touches the next limiting slot 19, the second spring 17 pops the limiting block 18 out and locks it in the limiting slot 19. During operation, the lubricating oil 15 will continuously rub against the guide rail 1, so that the slider 2 slides more smoothly on the guide rail 1.
[0021] Furthermore, the locking box 14 and the first spring 13 form a telescopic structure. The locking box 14 is symmetrically arranged about the central axis of the guide rail 1. The locking box 14 makes the limiting more stable.
[0022] Furthermore, the limiting block 18 and the second spring 17 form a telescopic structure. The limiting block 18 is symmetrically arranged around the central axis of the locking box 14. The setting of the limiting block 18 makes the locking more stable.
[0023] Furthermore, the limiting slots 19 are symmetrically arranged with respect to the central axis of the limiting groove 12. The limiting slots 19 are evenly distributed on the outer surface of the limiting groove 12. Through the setting of the limiting slots 19, the lubricating oil 15 can continuously adhere to the guide rail 1 while it is constantly wearing down.
[0024] Furthermore, the limiting slot 19 and the limiting block 18 engage and connect, and the setting of the limiting slot 19 makes engagement and limiting more convenient.
[0025] Furthermore, the locking box 14 and the limiting groove 12 are slidably connected, and the locking box 14 makes the sliding smoother.
[0026] Working principle: In use, firstly, slide the slider 2 onto the guide rail 1. Then, slide the first washer 6 and the second washer 11 so that the sliding blocks 5 on one side of each washer 6 and the second washer 11 are engaged into the sliding grooves 4 on the fixing block 3. Then, rotate the threaded rod 8 on the first fixing member 7 so that it is engaged into the second fixing member 10. Next, tighten the threaded member 9 so that one side of the threaded member 9 is in close contact with one side of the second fixing member 10. Then, remove the baffles 21 on the first washer 6 and the second washer 11. At this time, the elastic force of the first spring 13 will... The downward movement will push the locking box 14, which will push out the lubricating oil 15, so that one end of the lubricating oil 15 is in close contact with the guide rail 1. At this time, the inclined surface of the limiting block 18 on the outside of the locking box 14 is under pressure, which squeezes the second spring 17 and causes it to retract into the limiting box 16. Then it continues to move forward. When it touches the next limiting slot 19, the second spring 17 pops the limiting block 18 out and locks it in the limiting slot 19. During operation, the lubricating oil 15 will continuously rub against the guide rail 1, so that the slider 2 slides more smoothly on the guide rail 1.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A self-lubricating guide rail structure for a CNC lathe, comprising a guide rail (1), characterized in that: A slider (2) is slidably connected to the outer surface of the guide rail (1). A fixing block (3) is fixedly connected to one side surface of the guide rail (1). A sliding groove (4) is provided on one side surface of the fixing block (3). A sliding block (5) is slidably connected to the inner surface of the sliding groove (4). A first gasket (6) is fixedly connected to one side surface of the sliding block (5). A limiting groove (12) is provided on one side surface of the first gasket (6). A first spring (13) is fixedly connected to the inner surface of the limiting groove (12). A clip is fixedly connected to one end surface of the first spring (13). The locking box (14) has a lubricating oil (15) locked to its inner surface. The locking box (14) has a limiting box (16) fixedly connected to its outer surface. The limiting box (16) has a second spring (17) fixedly connected to its inner surface. One end of the second spring (17) has a limiting block (18) fixedly connected to its outer surface. The limiting groove (12) has a limiting slot (19) on its outer surface. The first gasket (6) has a sliding slot (20) on one side surface. The sliding slot (20) has a baffle (21) locked to its inner surface.
2. The self-lubricating guide rail structure for a CNC lathe according to claim 1, characterized in that: The locking box (14) and the first spring (13) constitute a telescopic structure, and the locking box (14) is symmetrically arranged about the central axis of the guide rail (1).
3. The self-lubricating guide rail structure for a CNC lathe according to claim 1, characterized in that: The limiting block (18) and the second spring (17) constitute a telescopic structure, and the limiting block (18) is symmetrically arranged about the central axis of the locking box (14).
4. The self-lubricating guide rail structure for a CNC lathe according to claim 1, characterized in that: The limiting slots (19) are symmetrically arranged around the central axis of the limiting groove (12), and the limiting slots (19) are evenly distributed on the outer surface of the limiting groove (12).
5. The self-lubricating guide rail structure for a CNC lathe according to claim 1, characterized in that: The limiting slot (19) and the limiting block (18) are engaged and connected.
6. The self-lubricating guide rail structure for a CNC lathe according to claim 1, characterized in that: The locking box (14) and the limiting groove (12) are slidably connected.
7. The self-lubricating guide rail structure for a CNC lathe according to claim 1, characterized in that: A first fixing member (7) is fixedly connected to one side surface of the first gasket (6), a threaded rod (8) is rotatably connected to the inner side surface of the first fixing member (7), a threaded member (9) is threadedly connected to the outer side surface of the threaded rod (8), a second fixing member (10) is engagedly connected to the outer side surface of the threaded rod (8), and a second gasket (11) is fixedly connected to one side surface of the second fixing member (10).