Automatic screw thread repairing equipment

Abstract

The utility model discloses automatic screw thread repairing equipment, which relates to the technical field of thread repairing equipment and comprises a worktable, and a first lifting seat and a second lifting seat are respectively mounted on the top surface of the worktable. The bottom face of the first lifting base and the bottom face of the second lifting base are fixedly installed on the top face of the workbench through a plurality of symmetrically-installed first electric telescopic rods, and a fixing plate is fixedly installed on the top face of the second lifting base. And along with retreating of the screw body, the lubricating liquid can be stored in the telescopic sleeve to be used next time, the working efficiency is improved, and the repairing time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of thread repair equipment technology, and in particular to an automatic screw thread repair equipment. Background Technology

[0002] During the laying of railway tracks, a large number of screws are needed to connect the various structures. Because railway tracks need to ensure extremely high safety, the screws are all special screws and cannot be replaced by ordinary screws. After long-term use, the screw structure of the railway tracks will also be damaged and the screws need to be repaired.

[0003] In Chinese utility model patents, such as CN216938828U, a rail screw repairer is disclosed. This device can repair the external threads of rail screws of different specifications. It is convenient, efficient and safe to operate.

[0004] The aforementioned technology repairs screw threads by threading a rotating repair sleeve onto the outer end of the screw and re-machines the external threads. However, when repairing screws with the repair sleeve, lubricant is usually applied inside the sleeve to significantly reduce friction between the sleeve and the screw. Without lubricant, the high-speed rotation of the repair sleeve during thread cutting will not only accelerate wear on both the sleeve and the screw but may also cause a rapid increase in screw surface temperature, affecting the screw's metallic properties and potentially compromising the accuracy of the repaired threads. Furthermore, the lubricant in the aforementioned technology requires manual application each time, which is inefficient and prolongs the repair time. Therefore, this application proposes an automatic screw thread repair device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic screw thread repair device.

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

[0007] An automatic screw thread repair device includes a workbench. A first lifting seat and a second lifting seat are respectively installed on the top surface of the workbench. The bottom surfaces of both the first and second lifting seats are fixedly installed on the top surface of the workbench via multiple symmetrically installed first electric telescopic rods. A fixed plate is fixedly installed on the top surface of the second lifting seat. A rotating cylinder is rotatably connected to the outer side of the fixed plate. The fixed plate drives the rotating cylinder to rotate via a rotating mechanism. A repair cylinder is installed inside the rotating cylinder via a clamping mechanism. A support plate is fixedly installed on the top surface of the workbench. A telescopic sleeve is fixedly installed on the outer side of the support plate via a second electric telescopic rod. An oil injection mechanism is provided inside the telescopic sleeve. An oil storage tank is fixedly installed on the top surface of the workbench and is connected to the oil injection mechanism. An oil drain seat is installed at one end of the telescopic sleeve and is connected to the oil injection mechanism. An assembly plate is slidably connected inside the oil drain seat. A second spring is installed between the bottom wall of the oil drain seat and the assembly plate. A connecting rod is fixedly installed on the top surface of the assembly plate. A sealing plug is sleeved on the outer side of the connecting rod. A pressure plate is fixedly installed at the top end of the connecting rod.

[0008] Preferably, the oil injection mechanism includes a piston, which is slidably and sealed within a telescopic sleeve. A push rod is fixedly installed on the outer side of the piston, and the other end of the push rod is fixedly connected to the outer side of the oil drain seat. A first spring is installed between the outer side of the piston and the side wall of the telescopic sleeve. The telescopic sleeve is connected to the oil storage tank through an oil inlet pipe and to the oil drain seat through an oil drain pipe. A one-way valve is installed in both the oil inlet pipe and the oil drain pipe.

[0009] Preferably, the rotating mechanism includes a gear ring, which is mounted on the outside of the rotating cylinder. A motor is fixedly mounted on the outside of the fixed plate, and a gear is mounted on the output shaft of the motor, which meshes with the gear ring.

[0010] Preferably, the clamping mechanism includes a fixing ring, which is fixedly installed on the outside of the rotating cylinder. The outside of the fixing ring is threaded with a plurality of screws, each of which passes through the rotating cylinder and is movably connected to a clamping pad.

[0011] Preferably, a clamping and moving device is fixedly installed on the top surface of the first lifting seat, and a screw body is installed on the outside of the clamping and moving device.

[0012] Preferably, the outer side of the oil drain seat has a through hole, and the sealing plug is fitted into the through hole.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model, through an oil injection mechanism, an oil drain seat, a first spring, and other devices, enables the screw body to be automatically injected into the repair cylinder. As the screw body slides axially, it compresses the first spring to extend and retract, opening the oil drain seat. Simultaneously, the axial sliding of the screw body activates the oil injection mechanism, pushing the lubricant in the telescopic sleeve into the oil drain seat. The lubricant then enters the repair cylinder through the opening of the oil drain seat, achieving automatic lubricant injection. Furthermore, as the screw body is removed, the lubricant can be stored in the telescopic sleeve for future use, increasing work efficiency and reducing repair time.

[0015] 2. By using devices such as the second electric telescopic rod, this utility model enables the controllable telescopic sleeve to enter the position between the rotating cylinders, thus facilitating the use of repair cylinders of different lengths. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the automatic screw thread repair device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the rotating mechanism of the automatic screw thread repair device proposed in this utility model;

[0018] Figure 3 This is a cross-sectional view of the rotating cylinder of the automatic screw thread repair device proposed in this utility model;

[0019] Figure 4 This is a cross-sectional view of the telescopic cylinder structure of the automatic screw thread repair device proposed in this utility model;

[0020] Figure 5 This is a cross-sectional view of the oil drain seat of the automatic screw thread repair device proposed in this utility model.

[0021] In the diagram: 1. Workbench; 2. First lifting seat; 3. Second lifting seat; 4. First electric telescopic rod; 5. Clamping and moving device; 6. Screw body; 7. Support plate; 8. Oil reservoir; 9. Fixing plate; 10. Rotating cylinder; 11. Gear ring; 12. Gear; 13. Motor; 14. Fixing ring; 15. Screw; 16. Clamping pad; 17. Second electric telescopic rod; 18. Telescopic sleeve; 19. Repair cylinder; 20. Oil inlet pipe; 21. Oil outlet pipe; 22. First spring; 23. Piston; 24. Push rod; 25. Oil outlet seat; 26. Connecting rod; 27. Pressure plate; 28. Sealing plug; 29. ​​Assembly plate; 30. Second spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] This utility model provides a technical solution: such as Figure 1-5 As shown, the automatic screw thread repair device includes a workbench 1. A first lifting seat 2 and a second lifting seat 3 are respectively installed on the top surface of the workbench 1. The bottom surfaces of both the first lifting seat 2 and the second lifting seat 3 are fixedly installed on the top surface of the workbench 1 via multiple symmetrically installed first electric telescopic rods 4, facilitating the alignment of the screw body 6 with the center point of the repair cylinder 19. A fixing plate 9 is fixedly installed on the top surface of the second lifting seat 3. A rotating cylinder 10 is rotatably connected to the outside of the fixing plate 9. The fixing plate 9 drives the rotating cylinder 10 to rotate via a rotating mechanism. The repair cylinder 19 is installed inside the rotating cylinder 10 via a clamping mechanism. A support is fixedly installed on the top surface of the workbench 1. Support plate 7, with a telescopic sleeve 18 fixedly installed on the outside of the support plate 7 via a second electric telescopic rod 17. The telescopic sleeve 18 is equipped with an oil injection mechanism. An oil storage tank 8 is fixedly installed on the top surface of the workbench 1, and the oil storage tank 8 is connected to the oil injection mechanism. An oil drain seat 25 is installed at one end of the telescopic sleeve 18, and the oil drain seat 25 is connected to the oil injection mechanism. An assembly plate 29 is slidably connected inside the oil drain seat 25. A second spring 30 is installed between the bottom wall of the oil drain seat 25 and the assembly plate 29. A connecting rod 26 is fixedly installed on the top surface of the assembly plate 29. A sealing plug 28 is sleeved on the outside of the connecting rod 26. A pressure plate 27 is fixedly installed on the top of the connecting rod 26.

[0024] The second spring 30 facilitates the reset of the sealing plug 28, thereby maintaining the seal of the oil drain seat 25. At the same time, when the screw body 6 is threaded into the repair cylinder 19, the sealing plug 28 can be squeezed to slide inward, thereby releasing the lubricating oil in the oil drain seat 25 and dripping it into the repair cylinder 19. As the thread rotates, the lubricating oil is evenly distributed between the threads of the screw body 6 and the repair cylinder 19, realizing the automatic injection of lubricating oil.

[0025] Furthermore, the oil injection mechanism includes a piston 23, which is slidably connected within the telescopic sleeve 18. A push rod 24 is fixedly installed on the outside of the piston 23, and the other end of the push rod 24 is fixedly connected to the outside of the oil drain seat 25. A first spring 22 is installed between the outside of the piston 23 and the side wall of the telescopic sleeve 18. The telescopic sleeve 18 is connected to the oil storage tank 8 through the oil inlet pipe 20 and to the oil drain seat 25 through the oil drain pipe 21. A one-way valve is installed in both the oil inlet pipe 20 and the oil drain pipe 21. The one-way valve can fix the flow direction of the lubricating oil. When the piston 23 slides inward, the lubricating oil in the telescopic sleeve 18 can be discharged and discharged into the oil drain seat 25 through the oil drain pipe 21. At the same time, when the first spring 22 pulls the piston 23 to slide outward, the lubricating fluid in the oil storage tank 8 can be drawn into the telescopic sleeve 18 through the oil inlet pipe 20 for subsequent use.

[0026] Furthermore, the rotating mechanism includes a gear ring 11, which is mounted on the outside of the rotating cylinder 10. A motor 13 is fixedly mounted on the outside of the fixing plate 9. A gear 12 is mounted on the output shaft of the motor 13, and the gear 12 meshes with the gear ring 11.

[0027] Furthermore, the clamping mechanism includes a retaining ring 14, which is fixedly installed on the outside of the rotating cylinder 10. Multiple screws 15 are threadedly connected to the outside of the retaining ring 14. Each screw 15 passes through the rotating cylinder 10 and is movably connected to a clamping pad 16. The clamping pad 16 can reduce damage to the repair cylinder 19.

[0028] Furthermore, a clamping and moving device 5 is fixedly installed on the top surface of the first lifting seat 2, and a screw body 6 is installed on the outside of the clamping and moving device 5. It should be noted that the clamping and moving device 5 is the prior art of the prior art document, which can clamp screw bodies 6 of different diameters and push screw bodies 6 into the repair cylinder 19.

[0029] Furthermore, a through hole is provided on the outer side of the oil drain seat 25, and the sealing plug 28 is engaged in the through hole.

[0030] This utility model provides an automatic screw thread repair device. The specific working principle is as follows: First, the operator installs the screw body 6 on the clamping and moving device 5. Then, the corresponding repair cylinder 19 is inserted into the rotating cylinder 10. By manually turning the screws 15 in different positions, each clamping pad 16 can slide axially, thereby clamping and limiting the repair cylinder 19. Next, by adjusting the first lifting seat 2 in different positions, the screw body 6 is aligned with the repair cylinder 19. The clamping and moving device 5 moves the screw body 6 to the end of the repair cylinder 19. Then, by starting the motor 13, the gear 12 is driven to rotate, which in turn drives the gear ring 11 to rotate. Thus, the repair cylinder 19 can be threadedly engaged with the screw body 6. With the rotation of the repair cylinder 19 and in conjunction with the clamping and moving device 5, the screw body 6 can continuously rotate and slide into the repair cylinder 19.

[0031] The sliding of the screw body 6 can squeeze the pressure plate 27 and compress the second spring 30, thereby allowing the sealing plug 28 to slide into the oil drain seat 25 to open the oil drain seat 25. As the screw body 6 continues to slide, it can push the oil drain seat 25 to slide, and push the piston 23 into the telescopic sleeve 18 through the push rod 24. This allows the lubricant in the telescopic sleeve 18 to enter the oil drain seat 25 and drip into the repair cylinder 19 through the opening, thus lubricating the threads of the screw body 6 and the repair cylinder 19. After the external thread of the screw body 6 is machined, the reverse rotation of the gear 12 can cause the screw body 6 to gradually withdraw from the repair cylinder 19. Thus, the piston 23 can slowly return to its original position under the force of the first spring 22, and draw the lubricant from the oil storage tank 8 through the oil inlet pipe 20 into the telescopic sleeve 18 for the next use, thus completing the automatic injection of lubricant and increasing the repair efficiency. At the same time, the second electric telescopic rod 17 can control the position of the telescopic sleeve 18 between the rotating cylinders 10, making it convenient to use repair cylinders 19 of different lengths.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic screw thread repair device, comprising a workbench (1), characterized in that, The top surface of the workbench (1) is respectively equipped with a first lifting seat (2) and a second lifting seat (3). The bottom surfaces of the first lifting seat (2) and the second lifting seat (3) are fixedly installed on the top surface of the workbench (1) by multiple symmetrically installed first electric telescopic rods (4). The top surface of the second lifting seat (3) is fixedly installed with a fixing plate (9). A rotating cylinder (10) is rotatably connected to the outside of the fixing plate (9). The fixing plate (9) drives the rotating cylinder (10) to rotate through a rotating mechanism. A repair cylinder (19) is installed inside the rotating cylinder (10) through a clamping mechanism. The top surface of the workbench (1) is fixedly installed with a support plate (7). The outside of the support plate (7) is connected by a second electric telescopic rod (17). A telescopic sleeve (18) is fixedly installed. An oil injection mechanism is provided inside the telescopic sleeve (18). An oil storage tank (8) is fixedly installed on the top surface of the workbench (1), and the oil storage tank (8) is connected to the oil injection mechanism. An oil drain seat (25) is installed at one end of the telescopic sleeve (18), and the oil drain seat (25) is connected to the oil injection mechanism. An assembly plate (29) is slidably connected inside the oil drain seat (25). A second spring (30) is installed between the bottom wall of the oil drain seat (25) and the assembly plate (29). A connecting rod (26) is fixedly installed on the top surface of the assembly plate (29). A sealing plug (28) is sleeved on the outside of the connecting rod (26). A pressure plate (27) is fixedly installed on the top end of the connecting rod (26).

2. The automatic screw thread repair device according to claim 1, characterized in that, The oil injection mechanism includes a piston (23), which is slidably connected in the telescopic sleeve (18). A push rod (24) is fixedly installed on the outside of the piston (23), and the other end of the push rod (24) is fixedly connected to the outside of the oil drain seat (25). A first spring (22) is installed between the outside of the piston (23) and the side wall of the telescopic sleeve (18). The telescopic sleeve (18) is connected to the oil storage tank (8) through the oil inlet pipe (20). The telescopic sleeve (18) is connected to the oil drain seat (25) through the oil drain pipe (21). A one-way valve is installed in both the oil inlet pipe (20) and the oil drain pipe (21).

3. The automatic screw thread repair device according to claim 1, characterized in that, The rotating mechanism includes a gear ring (11), which is installed on the outside of the rotating cylinder (10). A motor (13) is fixedly installed on the outside of the fixed plate (9). A gear (12) is installed on the output shaft of the motor (13), and the gear (12) meshes with the gear ring (11).

4. The automatic screw thread repair device according to claim 1, characterized in that, The clamping mechanism includes a fixing ring (14), which is fixedly installed on the outside of the rotating cylinder (10). The outside of the fixing ring (14) is threaded with a plurality of screws (15), each of which passes through the rotating cylinder (10) and is movably connected to a clamping pad (16).

5. The automatic screw thread repair device according to claim 1, characterized in that, A clamping and moving device (5) is fixedly installed on the top surface of the first lifting seat (2), and a screw body (6) is installed on the outside of the clamping and moving device (5).

6. The automatic screw thread repair device according to claim 1, characterized in that, The oil drain seat (25) has a through hole on its outer side, and the sealing plug (28) is inserted into the through hole.

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