Self-lubricating guide device for lead screw transmission

Abstract

The utility model relates to the technical field of guide devices, and discloses a self-lubricating guide device for lead screw transmission, which comprises a guide base, a rotating lead screw is rotatably connected in the guide base, a sliding block is slidably connected to the outer side of the rotating lead screw, two oil inlets are fixedly connected to the top of the sliding block, and the oil inlets are communicated with the rotating lead screw. A first storage groove is formed in the sliding block, a plurality of holes are formed in the first storage groove, a second storage groove is formed in the sliding block, a plurality of balls are rotationally connected into the second storage groove, and mounting assemblies used for mounting the guide base are fixedly connected to the periphery of the guide base. According to the utility model, the lubricating oil is automatically added when the device works, in high-precision processing equipment, the transmission precision of the lead screw directly influences the product quality, and stable lubrication can ensure that the lead screw rotates smoothly and the sliding block moves accurately, so that the processing precision is ensured, and the defective rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of guiding device technology, and in particular to a self-lubricating guiding device for screw drive. Background Technology

[0002] Screw drives, as a common mechanical transmission method, are widely used in machine tools, automated production lines, medical equipment, aerospace, 3D printing equipment and other fields due to their advantages such as high precision, high load capacity, high transmission efficiency, smooth motion and reversibility. They achieve precise motion control and efficient operation. In mechanical devices such as screw drives, self-lubricating guide devices ensure stable operation of the equipment by continuously lubricating and adapting to complex working conditions, thereby reducing wear, preventing failures and extending the service life of the equipment. They also improve production efficiency by reducing maintenance time and increasing operating speed. Furthermore, they are crucial for mechanical devices in ensuring motion accuracy and maintaining positioning accuracy to meet high precision requirements.

[0003] A self-lubricating guide device for screw drives generally consists of a guide body structure, a screw and nut pair, self-lubricating components, and auxiliary components. Utilizing the screw drive principle, the self-lubricating guide device achieves the conversion between rotary and linear motion based on a helical pair and ensures positioning with high precision. Simultaneously, through a self-lubricating mechanism, lubricating oil is stored and transported, motion-induced lubrication is achieved, and continuous lubrication is maintained, ensuring efficient and stable operation of the mechanical device. Furthermore, the sealing components prevent external impurities from damaging the lubrication and accelerating wear.

[0004] Existing self-lubricating guide devices for lead screw drives cannot automatically add lubricating oil during operation. During lead screw drive operation, the lubricating oil between the lead screw, nut, and guide components gradually depletes as operating time increases. If lubricating oil is not automatically added during operation, the lubrication level of the friction surfaces will continuously decrease, leading to increased friction and potentially causing jamming of moving parts. For example, in automated production lines, jamming in lead screw drives can disrupt product transport and affect the overall smoothness of the production line. Therefore, a self-lubricating guide device for lead screw drives is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a self-lubricating guide device for screw drives, which aims to improve the problem that existing technologies cannot automatically add lubricating oil when the device is running.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A self-lubricating guide device for screw drive includes a guide base, a rotating screw rotatably connected inside the guide base, a sliding block slidably connected to the outside of the rotating screw, two oil inlets fixedly connected to the top of the sliding block, a storage groove one inside the sliding block with multiple holes inside the storage groove one, a storage groove two inside the sliding block with multiple balls rotatably connected inside the storage groove two, and mounting components for mounting the guide base fixedly connected around the guide base.

[0008] As a further description of the above technical solution:

[0009] The mounting assembly includes a fixing plate, a connecting plate fixedly connected to the bottom of the fixing plate, two clamping plates slidably connected to the outer side of the connecting plate, a connecting block fixedly connected to the side of the clamping plates away from the connecting plate, and a spring fixedly connected inside the connecting block.

[0010] As a further description of the above technical solution:

[0011] The other end of the spring is fixedly connected to a base plate, and a limiting block is rotatably connected to the inner side of the clamping plate;

[0012] As a further description of the above technical solution:

[0013] The clamping plate is rotatably connected to the inside of the base plate, and the outer side of the limiting block is fixedly connected to the inside of the base plate;

[0014] As a further description of the above technical solution:

[0015] The outer side of the rotating lead screw is slidably connected to the outer side of the hole, and the inner side of the storage tank is slidably connected to a fixed rod;

[0016] As a further description of the above technical solution:

[0017] Both ends of the fixed rod are fixedly connected to the inside of the guide base, and the outer side of the ball is rotatably connected to the outer side of the ball.

[0018] As a further description of the above technical solution:

[0019] The bottom of the sliding block is slidably connected to the inside of the guide base, and the outer side of the base plate is slidably connected to the outside of the guide base;

[0020] As a further description of the above technical solution:

[0021] A piston is slidably connected inside the oil inlet, and two sealing rings are fixedly connected to the outside of the piston.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by means of sliding blocks respectively cooperating with storage tank one and storage tank two, storage tank one cooperating with holes, and storage tank two cooperating with balls, the device can automatically add lubricating oil when it is working. In high-precision processing equipment, the accuracy of the lead screw drive directly affects the product quality. Stable lubrication can ensure smooth rotation of the lead screw and accurate displacement of the sliding block, thereby ensuring processing accuracy and reducing the defect rate.

[0024] 2. In this utility model, the device is quickly installed by using a fixed plate with a connecting plate, a connecting plate with a clamping plate, a clamping plate with a connecting block, a connecting block with a spring, and a spring with a base plate. Workers do not need to spend time finding and operating tools such as screwdrivers and wrenches, which reduces the difficulty of installation. Even non-professionals can complete the installation quickly with simple guidance, which greatly improves the installation efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the self-lubricating guide device for screw drive proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the sliding block of the self-lubricating guide device for screw drive proposed in this utility model.

[0027] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Guide base; 2. Rotating screw; 3. Fixed rod; 4. Sliding block; 5. Oil inlet; 6. Piston; 7. Sealing ring; 8. Storage tank one; 9. Hole; 10. Storage tank two; 11. Ball bearing; 12. Fixed plate; 13. Connecting plate; 14. Clamping plate; 15. Connecting block; 16. Limiting block; 17. Spring; 18. Base plate. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 2 , Figure 4 The present invention provides an embodiment of a self-lubricating guide device for lead screw transmission, comprising a guide base 1. The guide base 1 is the core support part of the entire device, providing a stable mounting foundation for each part in the device, ensuring the structural stability and reliability of the entire device, and enabling the lead screw to be accurately installed and operate normally.

[0033] The guide base 1 is rotatably connected to a lead screw 2. The lead screw 2 is a key component for converting rotary motion into linear motion. The lead screw 2 converts the rotational power from the drive source such as the motor into precise linear motion, driving the parts to perform displacement operations. A sliding block 4 is slidably connected to the outside of the lead screw 2. The sliding block 4 can perform precise linear motion along the axis of the lead screw under the drive of the lead screw 2.

[0034] The bottom of the sliding block 4 is slidably connected to the inside of the guide base 1. The internal structure of the guide base 1 provides a precise movement path for it, ensuring the accuracy of its movement direction. The top of the sliding block 4 is fixedly connected to three oil inlets 5, which provide channels for the injection of lubricating oil, making it convenient for operators to add lubricating oil into the device and ensuring the convenience of lubrication operation. The piston 6 is slidably connected inside the oil inlet 5. The piston 6 can slide flexibly within the oil inlet 5. By changing its position, the oil inlet 5 is opened and closed, thereby controlling the addition and storage of lubricating oil. Two sealing rings 7 are fixedly connected to the outside of the piston 6. The sealing rings 7 fit tightly between the piston 6 and the oil inlet 5 to prevent lubricating oil from leaking from the oil inlet 5, ensuring that the lubricating oil can be stored inside the device and prepared for the subsequent lubrication process.

[0035] The sliding block 4 has a storage groove 8 inside, which serves as a storage place for lubricating oil. It can store a certain amount of lubricating oil to meet the lubrication needs during the operation of the device. The storage groove 8 has multiple holes 9 inside. When the lead screw 2 rotates, the outer side of the lead screw 2 is slidably connected to the outer side of the holes 9. The rotation of the lead screw 2 will cause the surface of the lead screw to contact the holes 9 at different positions. The design of the holes 9 allows the lead screw 2 to carry out lubricating oil during rotation, so as to achieve continuous lubrication of the lead screw 2. The sliding block 4 also has a storage groove 10 inside. The storage groove 10 provides a relatively independent movement space for the parts, so that the moving parts in the device can move in an orderly manner.

[0036] The storage tank 10 has a fixed rod 3 slidably connected inside. Both ends of the fixed rod 3 are fixedly connected to the inside of the guide base 1, which supports and guides the storage tank 10, ensuring that the storage tank 10 moves along a predetermined path during movement. Multiple balls 11 are rotatably connected inside the storage tank 10. The balls 11 can roll inside the storage tank 10. When the storage tank 10 moves, the rotation of the balls 11 reduces the friction between the storage tank 10 and the fixed rod 3, and also carries out the lubricating oil inside the storage tank 10, providing lubrication for the movement of the storage tank 10 and related parts. The outer side of the balls 11 is rotatably connected to the outer side of the fixed rod 3. Mounting components for mounting the guide base 1 are fixedly connected around the circumference of the guide base 1.

[0037] Reference Figures 1 to 3 The mounting assembly includes a fixing plate 12, which securely fixes the connecting plate 13 to both sides of the guide base 1, ensuring the positional stability of the connecting plate 13 and preventing displacement or loosening during installation and use. The connecting plate 13 is fixedly connected to the bottom of the fixing plate 12. The connecting plate 13 is an important part for connecting with external equipment or mounting structure. Two clamping plates 14 are slidably connected to its outer side. The installation operation of the device is realized by sliding between the clamping plates 14. The clamping plates 14 are rotatably connected to the inside of the base plate 18, allowing the clamping plates 14 to rotate the base plate 18 at a certain angle, which facilitates the installation and adjustment of the device. A connecting block 15 is fixedly connected to the side of the clamping plate 14 away from the connecting plate 13. The connecting block 15 serves to connect the clamping plate 14 and the spring 17, ensuring the integrity of the entire mounting structure.

[0038] A spring 17 is fixedly connected inside the connecting block 15. The spring 17 can provide a certain elastic force. Under normal circumstances, the elasticity of the spring 17 can ensure the stability of the position of the clamping plate 14. During installation, it can also provide elastic deformation capability for the movement of the clamping plate 14, making the installation operation more flexible. The other end of the spring 17 is fixedly connected to the base plate 18. The base plate 18 provides a stable foundation for the installation assembly and ensures the firmness of the entire installation structure. The outer side of the base plate 18 is slidably connected to the outer side of the guide base 1, so that the installation assembly and the guide base 1 form a whole. The inner side of the clamping plate 14 is rotatably connected to the limiting block 16. The limiting block 16 limits the rotation range of the clamping plate 14 to prevent the clamping plate 14 from rotating excessively and ensure the safety and stability of the device installation. The outer side of the limiting block 16 is fixedly connected to the inside of the base plate 18.

[0039] Working principle: When the operator needs to rotate the lead screw 2, the piston 6 can be removed from the oil inlet 5 beforehand. Lubricating oil is then poured into one storage tank 8 and two storage tanks 10 through the three oil inlets 5 respectively. After the lubricating oil is poured into storage tank 8 and storage tank 10, the lead screw 2 can be rotated. The sliding block 4 has a groove inside to fit the outer texture of the lead screw 2. Therefore, when the lead screw 2 rotates, it will drive the sliding block 4, causing it to slide on the outside of the fixed rod 3 and the lead screw 2. The outside of the fixed rod 3 slides inside the storage tank 10, while the inside of the storage tank 10... The part is rotatably connected to multiple balls 11. When the storage tank 2 10 slides on the outside of the balls 11, it will drive the multiple balls 11 to rotate. In this way, the rotation of the balls 11 can carry out the lubricating oil inside the storage tank 2 10. The outside of the rotating screw 2 rotates inside the storage tank 1 8. The storage tank 1 8 has multiple holes 9. When the rotating screw 2 is not rotating, it will block the holes 9. However, when the rotating screw 2 rotates inside the storage tank 1 8, other parts of the rotating screw 2 will contact the holes 9, thereby carrying out the lubricating oil inside the holes 9. This realizes that lubricating oil can be automatically added to the guide device when it is working.

[0040] When the guide base 1 needs to be installed, the base plate 18 can be installed at the location where the guide base 1 needs to be installed, and then the connecting plate 13 can be slid into the interior of the two clamping plates 14. The connecting plate 13 is fixed to both sides of the guide base 1 by the fixing plate 12, and the two clamping plates 14 are fixed with connecting blocks 15 on both sides. The connecting blocks 15 are fixed with springs 17 inside. Under normal circumstances, the two clamping plates 14 will remain in their original position under the restriction of the springs 17. When the connecting plate 13 is slid into the interior of the two clamping plates 14 with force, the two clamping plates 14 will be squeezed by the connecting plate 13, thereby squeezing the connecting blocks 15 to both sides. After the connecting plate 13 slides into the interior of the two clamping plates 14, the clamping plates 14 will be pushed back to their original position by the compressed springs 17, thereby realizing the quick installation of the guide device.

[0041] 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. A self-lubricating guide device for a lead screw drive, comprising a guide base (1), characterized in that: The inside of the guide base (1) is rotatably connected with a rotating screw rod (2), the outside of the rotating screw rod (2) is slidably connected with a sliding block (4), the top of the sliding block (4) is fixedly connected with three oil inlets (5), the inside of the sliding block (4) is provided with a storage groove one (8), the inside of the storage groove one (8) is provided with a plurality of holes (9), the inside of the sliding block (4) is provided with a storage groove two (10), the inside of the storage groove two (10) is rotatably connected with a plurality of balls (11), the periphery of the guide base (1) is fixedly connected with a mounting assembly for mounting the guide base (1).

2. The self-lubricating guide device for a lead screw drive according to claim 1, characterized by: The mounting assembly comprises a fixed plate (12), the bottom of the fixed plate (12) is fixedly connected with a connecting disc (13), the outside of the connecting disc (13) is slidably connected with two clamping plates (14), the side, away from the connecting disc (13), of the clamping plate (14) is fixedly connected with a connecting block (15), the inside of the connecting block (15) is fixedly connected with a spring (17).

3. The self-lubricating guide device for a lead screw drive according to claim 2, characterized by: The other end of the spring (17) is fixedly connected with a bottom plate (18), the inside of the clamping plate (14) is rotatably connected with a limiting block (16).

4. The self-lubricating guide device for a lead screw drive according to claim 3, characterized by: The clamping plate (14) is rotatably connected in the inside of the bottom plate (18), the outside of the limiting block (16) is fixedly connected in the inside of the bottom plate (18).

5. The self-lubricating guide device for a lead screw drive according to claim 1, characterized by: The outside of the rotating screw rod (2) is slidably connected in the outside of the hole (9), the inside of the storage groove two (10) is slidably connected with a fixed rod (3).

6. The self-lubricating guide device for a lead screw drive according to claim 5, characterized by: Both ends of the fixed rod (3) are fixedly connected in the inside of the guide base (1), the outside of the ball (11) is rotatably connected in the outside of the fixed rod (3).

7. The self-lubricating guide device for a lead screw drive according to claim 4, characterized by: The bottom of the sliding block (4) is slidably connected in the inside of the guide base (1), the outside of the bottom plate (18) is slidably connected in the outside of the guide base (1).

8. The self-lubricating guide for lead screw drives according to claim 1, characterized in that The inside of the oil inlet (5) is slidably connected with a piston (6), the outside of the piston (6) is fixedly connected with two sealing rings (7).

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