Machine tool linear sliding rail with protective structure

Abstract

The utility model discloses a machine tool linear slide rail with a protective structure, which comprises a mounting frame, a guide rail is fixedly mounted on the mounting frame, a mounting seat is slidably sleeved on the guide rail, a screw rod is arranged on the mounting frame, four groups of symmetrically distributed fixing frames are arranged on the mounting seat, and positioning frames are arranged on the four groups of fixing frames. Two groups of symmetrically distributed rubber brushes are fixedly mounted on the positioning frame, two groups of symmetrically distributed mounting rods are arranged on the fixing frames, two groups of symmetrically distributed belts sleeve the two groups of fixing frames, a friction belt is fixedly mounted between the two groups of belts, and a scraper is arranged on the fixing frames. The two side faces of the guide rail are cleaned in advance through the rubber brushes arranged on the fixing frame, irreversible damage caused by impurity particles attached to the guide rail to the contact face of the guide block and the guide rail in the follow-up sliding process of the guide block and the guide rail is reduced, the service life of the linear sliding rail is shortened, and effective protection of the linear sliding rail is achieved.

Description

Technical Field

[0001] This utility model relates to the field of linear guide rail technology, specifically a machine tool linear guide rail with a protective structure. Background Technology

[0002] Linear guideways are guide systems used in machine tools to support and guide the precise linear motion of machine tool components such as the worktable and cutting tools. Linear guideways achieve low-friction, high-precision motion through the rolling of balls or rollers between the slider and the guide rail, ensuring that the machine tool maintains stable machining accuracy even under prolonged high-speed operation.

[0003] Existing technologies lack effective protective measures for linear guideways. During use, dust or impurities inevitably accumulate on the guideway surface. As the slider slides on the guideway, these impurities cause irremovable scratches on the contact surfaces of both the slider and the guideway, increasing the friction between them and severely affecting the service life of the linear guideway. Therefore, we propose a machine tool linear guideway with a protective structure. Utility Model Content

[0004] The purpose of this invention is to provide a machine tool linear guide rail with a protective structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a machine tool linear guide rail with a protective structure, including a mounting frame, a guide rail fixedly mounted on the mounting frame, a mounting seat slidably sleeved on the guide rail, a lead screw on the mounting frame, four sets of symmetrically distributed fixing frames on the mounting seat, each of the four sets of fixing frames having a positioning frame, the positioning frame being rotatably connected to the fixing frame via a rotating rod, two sets of symmetrically distributed rubber brushes fixedly mounted on the positioning frame, the two sets of rubber brushes being in contact with the side of the guide rail, two sets of symmetrically distributed mounting rods on the fixing frame, two sets of symmetrically distributed belts sleeved on the two sets of fixing frames, a friction belt fixedly mounted between the two sets of belts, the friction belt being in contact with the rubber brushes, a scraper on the fixing frame, the scraper being in contact with the surface of the friction belt, two sets of symmetrically distributed oil pipes fixedly mounted on both sides of the mounting seat, two sets of symmetrically distributed oil inlet grooves opened inside the mounting seat, the oil inlet grooves being correspondingly arranged with the oil pipes.

[0006] As a further preferred embodiment of this technical solution, a guide block is sleeved on the guide rail, both ends of the lead screw pass through the mounting bracket and are rotatably connected to the mounting bracket through bearings, and the lead screw passes through the mounting seat and is threadedly connected to the mounting seat.

[0007] As a further preferred embodiment of this technical solution, a gear is sleeved on the rotating rod, a cylinder is provided inside the fixed frame, a rack is provided inside the fixed frame, the rack is slidably connected to the fixed frame, the rack is connected to the output end of the cylinder piston rod, and the rack is meshed with the gear.

[0008] As a further preferred embodiment of this technical solution, both ends of the two sets of mounting rods pass through the fixing frame and are rotatably connected to the fixing frame through bearings. Each set of mounting rods is fitted with two sets of symmetrically distributed pulleys, and the belts are respectively connected to the two sets of pulleys for transmission.

[0009] As a further preferred embodiment of this technical solution, a slide rod is fixedly installed on the fixed frame, and two sets of symmetrically distributed springs are sleeved on the slide rod. The scraper is slidably connected to the fixed frame through a slider, and the slider is slidably sleeved with the slide rod. Both ends of the two sets of springs are respectively fixedly connected to the slider and the fixed frame. A cam is rotatably installed inside the fixed frame, and the cam is fitted to the surface of the slider.

[0010] As a further preferred embodiment of this technical solution, four sets of symmetrically distributed rubber sheets are fixedly installed inside the oil pipe near the oil inlet groove, an oil inlet is provided above the oil pipe, a fixing rod is fixedly installed at the end of the oil pipe away from the mounting base, and a piston is slidably installed inside the oil pipe.

[0011] As a further preferred embodiment of this technical solution, a push rod is fixedly installed on the piston, the push rod is slidably connected to a fixed rod and an oil pipe, a screw is rotatably installed inside the fixed rod, and the end of the screw near the oil pipe passes through the push rod and is threadedly connected to the push rod.

[0012] This utility model provides a machine tool linear guide rail with a protective structure, which has the following beneficial effects:

[0013] (1) This utility model achieves pre-cleaning of both sides of the guide rail by setting the mounting base and the rubber brushes set on the four symmetrically distributed fixing frames on the mounting base, reducing the irreversible damage to the contact surface of the guide block and the guide rail caused by the impurity particles attached to the guide rail during the subsequent sliding process, reducing the service life of the linear guide rail, and achieving effective protection for the linear guide rail.

[0014] (2) This utility model injects lubricating oil into the contact surface between the mounting base and the guide rail through an oil pipe or the like installed on the mounting base, and evenly applies the lubricating oil to the surface of the guide rail during the sliding process of the mounting base, thereby further improving the smoothness of sliding between the guide block and the guide rail, and improving the protective performance of the linear guide rail on the basis of cleaning impurities on the surface of the guide rail. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the mounting base of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the fixing frame of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A;

[0019] Figure 5 For the present utility model Figure 3 Enlarged view of the structure at point -B;

[0020] Figure 6 This is a schematic diagram of the oil pipe structure of this utility model;

[0021] In the diagram: 1. Mounting bracket; 2. Guide rail; 3. Guide block; 4. Mounting seat; 5. Lead screw; 6. Fixing bracket; 7. Positioning bracket; 8. Rotating rod; 9. Gear; 10. Rack; 11. Cylinder; 12. Rubber brush; 13. Mounting rod; 14. Pulley; 15. Belt; 16. Friction belt; 17. Scraper; 18. Slider; 19. Slide rod; 20. Spring; 21. Cam; 22. Oil pipe; 23. Oil inlet groove; 24. Rubber sheet; 25. Piston; 26. Screw; 27. Push rod; 28. Oil inlet; 29. ​​Fixing rod. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figures 1-5As shown, in this embodiment, a machine tool linear guide with a protective structure includes a mounting frame 1, a guide rail 2 fixedly mounted on the mounting frame 1, a mounting seat 4 slidably sleeved on the guide rail 2, a lead screw 5 on the mounting frame 1, four sets of symmetrically distributed fixing frames 6 on the mounting seat 4, and a positioning frame 7 on each of the four sets of fixing frames 6. The positioning frame 7 is rotatably connected to the fixing frame 6 via a rotating rod 8. Two sets of symmetrically distributed rubber brushes 12 are fixedly mounted on the positioning frame 7, and the two sets of rubber brushes 12 are in contact with the side of the guide rail 2. Two sets of symmetrically distributed mounting rods 13 are provided on the fixing frame 6, and two sets of symmetrically distributed belts 15 are sleeved on the two sets of fixing frames 6. A friction belt 16 is fixedly installed between the two sets of belts 15, and the friction belt 16 is in contact with the rubber brushes 12. A scraper 1 is provided on the fixing frame 6. 7. The scraper 17 is in contact with the surface of the friction belt 16. Two sets of symmetrically distributed oil pipes 22 are fixedly installed on both sides of the mounting base 4. Two sets of symmetrically distributed oil inlet grooves 23 are opened inside the mounting base 4. The oil inlet grooves 23 are correspondingly arranged with the oil pipes 22. The motor on the mounting frame 1 drives the screw 5 to rotate, and under the limiting action of the guide rail 2, the mounting base 4 drives the fixed frame 6 to slide at a uniform speed on the guide rail 2. The guide rail 2 is fitted with a guide block 3. The two ends of the screw 5 pass through the mounting frame 1 and are rotatably connected to the mounting frame 1 through bearings. The screw 5 passes through the mounting base 4 and is threadedly connected to the mounting base 4. A gear 9 is fitted on the rotating rod 8. A cylinder 11 is installed inside the fixed frame 6. A rack 10 is installed inside the fixed frame 6. The rack 10 is slidably connected to the fixed frame 6. The rack 10 is connected to the piston of the cylinder 11. The output end of the 25 rod is connected, and the rack 10 meshes with the gear 9. During the sliding process of the mounting base 4 driving the fixing frame 6, the rubber brush 12 on the fixing frame 6 scrapes against the two sides of the guide rail 2, effectively cleaning the impurities adhering to the surface of the guide rail 2. Some of the impurities adhere to the rubber brush 12 in contact with the guide rail 2. The cylinder 11 is periodically started to drive the rack 10 to slide, which, in conjunction with the gear 9, causes the rotating rod 8 to drive the positioning frame 7 to rotate, realizing the conversion of the two sets of rubber brushes 12. The rubber brush 12 used in the previous set corresponds to the friction belt 16 after conversion. The two ends of the two sets of mounting rods 13 pass through the fixing frame 6 and are rotatably connected to the fixing frame 6 through bearings. Two sets of symmetrically distributed pulleys 14 are sleeved on each of the two sets of mounting rods 13, and the belts 15 are respectively connected to the two sets of belts. The wheel 14 is connected to the drive system. The motor on the fixed frame 6 drives the rotation of the mounting rod 13, which in turn drives the friction belt 16 through the belt 15 and pulley 14. During the transmission process, the friction belt 16 scrapes against the rubber brush 12, cleaning the impurities adhering to the surface of the rubber brush 12. The impurities adhering to the rubber brush 12 are removed when the friction belt 16 scrapes against the scraper 17 during the transmission process. A slide rod 19 is fixedly installed on the fixed frame 6. Two sets of symmetrically distributed springs 20 are sleeved on the slide rod 19. The scraper 17 is slidably connected to the fixed frame 6 through a slider 18. The slider 18 is slidably sleeved with the slide rod 19. Both ends of the two sets of springs 20 are fixedly connected to the slider 18 and the fixed frame 6, respectively. A cam 21 is rotatably installed inside the fixed frame 6.The cam 21 is fitted to the surface of the slider 18. A motor on the mounting bracket 6 drives the cam 21 to rotate. When the cam 21 rotates, it pushes the slider 18 and compresses the spring 20 on the slide rod 19, causing the scraper 17 to vibrate up and down on the slide rod 19. The auxiliary scraper 17 shakes off the impurities cleaned from the friction belt 16, completing the cleaning of the friction belt 16 and the rubber brush 12.

[0024] like Figure 2 and Figure 6 As shown, four sets of symmetrically distributed rubber sheets 24 are fixedly installed inside the oil pipe 22 near the oil inlet groove 23. An oil inlet 28 is provided above the oil pipe 22. A fixing rod 29 is fixedly installed at the end of the oil pipe 22 away from the mounting base 4. A piston 25 is slidably installed inside the oil pipe 22. A push rod 27 is fixedly installed on the piston 25. The push rod 27 is slidably connected to the fixing rod 29 and the oil pipe 22. A screw 26 is rotatably installed inside the fixing rod 29. The end of the screw 26 near the oil pipe 22 passes through the push rod 27 and is connected to the push rod 27. During the sliding process of the threaded connection and mounting base 4, the motors in the two sets of fixed rods 29 are started to drive the corresponding screws 26 to rotate at low speed. Under the limiting action of the fixed rods 29, the push rod 27 drives the piston 25 to move slowly forward in the oil pipe 22. The lubricating oil injected into the oil pipe 22 through the oil inlet 28 passes through the rubber sheet 24 and is evenly applied between the contact surfaces of the mounting base 4 and the guide rail 2 through the oil inlet groove 23. During the uniform sliding process of the mounting base 4, the surface of the guide rail 2 is evenly coated with lubricating oil.

[0025] This utility model provides a machine tool linear guide rail with a protective structure. The specific working principle is as follows: The motor on the mounting bracket 1 drives the lead screw 5 to rotate, and under the limiting action of the guide rail 2, the mounting seat 4 drives the fixed bracket 6 to slide uniformly on the guide rail 2. During the sliding process, the rubber brush 12 on the fixed bracket 6 scrapes against the two sides of the guide rail 2, effectively cleaning the impurities adhering to the surface of the guide rail 2. Some of the impurities adhere to the rubber brush 12 in contact with the guide rail 2. Periodically, the cylinder 11 drives the rack 10 to slide, which, in conjunction with the gear 9, causes the rotating rod 8 to drive the positioning bracket 7 to rotate, realizing the switching between two sets of rubber brushes 12. The previously used set of rubber brushes 12 corresponds to the friction belt 16 after switching. The motor on the fixed bracket 6 drives the mounting rod 13 to rotate, and in conjunction with the belt 15 and pulley 14, realizes the transmission of the friction belt 16. During the transmission process, the friction belt 16 scrapes against the rubber brush 12, completing the cleaning of the impurities adhering to the surface of the rubber brush 12. After the impurities adhering to the rubber brush 12 are attached to the friction belt 16, they are removed when the friction belt 16 scrapes against the scraper 17 during its transmission. The motor on the fixed frame 6 drives the cam 21 to rotate. When the cam 21 rotates, it pushes the slider 18 and squeezes the spring 20 on the slide rod 19, causing the scraper 17 to vibrate up and down on the slide rod 19. The auxiliary scraper 17 shakes off the impurities cleaned from the friction belt 16, completing the cleaning of the friction belt 16 and the rubber brush 12. During the sliding of the mounting base 4, the motors in the two sets of fixed rods 29 are started to drive the corresponding screws 26 to rotate at low speed. Under the limiting action of the fixed rods 29, the push rod 27 drives the piston 25 to move slowly forward in the oil pipe 22. The lubricating oil injected into the oil pipe 22 through the oil inlet 28 passes through the rubber sheet 24 and is evenly applied between the contact surfaces of the mounting base 4 and the guide rail 2 through the oil inlet groove 23. During the uniform sliding of the mounting base 4, the surface of the guide rail 2 is evenly coated with lubricating oil.

[0026] 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 machine tool linear slide rail with a protection structure, comprising a mounting frame (1), characterized in that: The mounting frame (1) is fixedly provided with a guide rail (2), the guide rail (2) is slidably sleeved with a mounting seat (4), the mounting frame (1) is provided with a lead screw (5), the mounting seat (4) is provided with four groups of symmetrically distributed fixing frames (6), the four groups of fixing frames (6) are all provided with positioning frames (7), the positioning frames (7) are rotatably connected with the fixing frames (6) through rotating rods (8), the positioning frames (7) are fixedly provided with two groups of symmetrically distributed rubber brushes (12), the two groups of rubber brushes (12) are attached to the side of the guide rail (2), the fixing frames (6) are provided with two groups of symmetrically distributed mounting rods (13), the two groups of fixing frames (6) are sleeved with two groups of symmetrically distributed belts (15), the two groups of belts (15) are fixedly provided with a friction belt (16) between them, the friction belt (16) is attached to the rubber brush (12), the fixing frames (6) are provided with scrapers (17), the scrapers (17) are attached to the surface of the friction belt (16), the two sides of the mounting seat (4) are fixedly provided with two groups of symmetrically distributed oil pipes (22), the mounting seat (4) is provided with two groups of symmetrically distributed oil inlet grooves (23), and the oil inlet grooves (23) are correspondingly arranged with the oil pipes (22).

2. The linear slide of claim 1, wherein: The guide rail (2) is sleeved with a guide block (3), both ends of the lead screw (5) penetrate through the mounting frame (1) and are rotatably connected with the mounting frame (1) through bearings, and the lead screw (5) penetrates through the mounting seat (4) and is threadedly connected with the mounting seat (4).

3. The linear slide of claim 1, wherein: The rotating rod (8) is sleeved with a gear (9), the fixing frame (6) is provided with a pneumatic cylinder (11), the fixing frame (6) is provided with a rack (10), the rack (10) is slidably connected with the fixing frame (6), the rack (10) is connected with the output end of the piston (25) rod of the pneumatic cylinder (11), and the rack (10) is meshedly connected with the gear (9).

4. The linear slide of claim 1, wherein: Both ends of the two groups of mounting rods (13) penetrate through the fixing frame (6) and are rotatably connected with the fixing frame (6) through bearings, and the two groups of mounting rods (13) are all sleeved with two groups of symmetrically distributed belt pulleys (14), and the belts (15) are respectively in transmission connection with the two groups of belt pulleys (14).

5. The linear slide of claim 1, wherein: The fixing frame (6) is fixedly provided with a sliding rod (19), the sliding rod (19) is sleeved with two groups of symmetrically distributed springs (20), the scraper (17) is slidably connected with the fixing frame (6) through a sliding block (18), the sliding block (18) is slidably sleeved with the sliding rod (19), both ends of the two groups of springs (20) are respectively fixedly connected with the sliding block (18) and the fixing frame (6), and the fixing frame (6) is rotatably provided with a cam (21), and the cam (21) is attached to the surface of the sliding block (18).

6. The linear slide of claim 1, wherein: The oil pipe (22) is fixedly provided with four groups of symmetrically distributed rubber sheets (24) at one end close to the oil inlet groove (23), the oil pipe (22) is provided with an oil inlet (28) above, the oil pipe (22) is fixedly provided with a fixing rod (29) at one end away from the mounting seat (4), and the oil pipe (22) is slidably provided with a piston (25).

7. The machine tool linear slide with a protective structure according to claim 6, characterized in that: The piston (25) is fixedly provided with a pushing rod (27), the pushing rod (27) is slidably connected with a fixed rod (29) and an oil pipe (22), the fixed rod (29) is rotatably provided with a screw rod (26), one end of the screw rod (26) near the oil pipe (22) penetrates the pushing rod (27) and is threadedly connected with the pushing rod (27).

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