Surface polishing device for seamless steel pipe

Abstract

The utility model discloses a surface polishing device for seamless steel tubes, which relates to the technical field of seamless steel tube processing and comprises a workbench, a first moving device is mounted at the top of the workbench, and vertical plates are symmetrically mounted at two ends of the top of the first moving device. A rotating frame is installed on the sides, opposite to each other, of the two vertical plates, a first rotating motor is installed on the sides, opposite to each other, of the two vertical plates, second bidirectional threaded rods are installed at the two ends of the interior of the rotating frame, and clamping plates are symmetrically installed between the two second bidirectional threaded rods on the same side; according to the scheme, the problems that in the using process of an existing seamless steel pipe surface polishing device, only steel pipes of a single size can be polished, when steel pipes of different sizes need to be polished, a mold needs to be manually replaced, time and labor are wasted, practicability is low, the clamping effect on the steel pipes is poor, and loosening and mold moving are prone to occurring are solved.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe processing technology, specifically to a surface polishing device for seamless steel pipes. Background Technology

[0002] Seamless steel pipes are steel pipes made from a single piece of metal without any seams on their surface. Depending on the production method, seamless pipes are classified as hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, and jacking pipes. After production, seamless steel pipes require surface polishing, and the machine used for polishing is called a polishing machine.

[0003] As indicated by announcement number CN221338078U, a seamless steel pipe surface polishing device is described. This device includes a base plate, with a frame symmetrically fixedly connected to the center of the base plate. Conveying components are provided at both ends of the base plate for conveying the pipe body. Both frames are fixedly connected to a cylinder, and a polishing component is provided inside the cylinder. A driving component is provided on the cylinder, and the driving component drives the polishing component to rotate and polish the pipe body. The polishing component includes a polishing cylinder rotatably connected to the cylinder, with a central hole formed inside the polishing cylinder, and multiple polishing blocks fixedly connected inside the central hole.

[0004] The aforementioned device can only polish steel pipes of a single size during use. When polishing steel pipes of different sizes, manual mold replacement is required, which is time-consuming, labor-intensive, and has low practicality. Furthermore, the clamping effect on the steel pipe is poor, and loosening and mold movement are likely to occur. Therefore, we propose a surface polishing device for seamless steel pipes to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a surface polishing device for seamless steel pipes, so as to solve the problem that the existing surface polishing devices for seamless steel pipes mentioned in the background art can only polish steel pipes of a single size during use. When polishing steel pipes of different sizes, it is necessary to manually change the mold, which is time-consuming and labor-intensive and has low practicality. In addition, the clamping effect on the steel pipe is poor and it is easy to loosen and move the mold.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a surface polishing device for seamless steel pipes, comprising a worktable, a first moving device mounted on the top of the worktable, upright plates symmetrically mounted at both ends of the top of the first moving device, a rotating frame mounted on one side of the opposite faces of the two upright plates, a first rotating motor mounted on one side of the opposite faces of the two upright plates, second bidirectional threaded rods mounted at both ends inside the rotating frame, clamping plates symmetrically mounted between the two second bidirectional threaded rods on the same side, a handle mounted on the top of the second bidirectional threaded rods passing through the upper plate of the rotating frame, a fixing rod mounted at the center position on one side of the opposite faces of the two rotating frames, a plurality of cylinders evenly mounted on the outer wall of the other end of the fixing rod, an abutment plate mounted on the other end of the cylinders, second moving devices provided at both ends of the first moving device, a support frame mounted on the top between the two second moving devices, hydraulic cylinders mounted on both sides of the top of the support frame, a fixing block mounted on the bottom of the hydraulic cylinder, a polishing roller mounted between the two fixing blocks, and a second rotating motor mounted on one side of the polishing roller through the fixing block.

[0007] Preferably, the first moving device includes a fixed plate, a first bidirectional threaded rod, a first drive motor, and a nut seat. The fixed plates are installed on both sides of the top of the workbench. The first bidirectional threaded rod is located between the two fixed plates. The first drive motor is installed on one side of the first bidirectional threaded rod through the fixed plate. The nut seats are symmetrically installed on both sides of the outer wall of the first bidirectional threaded rod. The upright plate is installed on the top of the nut seat.

[0008] Preferably, the second moving device includes a groove, a threaded rod, a second drive motor, and a slider. The groove is provided at both ends of the top of the worktable. The threaded rod is installed inside the groove. The second drive motor is installed on one side of the threaded rod through the worktable. The slider is slidably connected to the outer wall of the threaded rod. The support frame is installed on the top of the slider at both ends.

[0009] Preferably, a limiting rod is installed between the two fixing plates, the limiting rod is located at one end of the first bidirectional threaded rod, and the nut seat is slidably connected to the limiting rod.

[0010] Preferably, a coupling is installed between the rotating frame and the first rotating motor.

[0011] Preferably, the bottom of the second bidirectional threaded rod is fitted with an internal threaded sleeve via the rotating frame.

[0012] Preferably, observation windows are installed inside both ends of the support frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses a first drive motor to rotate a first bidirectional threaded rod, causing two nut seats to move closer or further apart, thereby adjusting the distance between the two rotating frames. This facilitates the processing of steel pipes of different lengths. The combined action of the clamping plate and the abutment plate effectively prevents the steel pipe from loosening, improving the stability of the steel pipe polishing process. The second drive motor, by rotating the threaded rod, can adjust the horizontal position of the slider, thereby adjusting the horizontal position of the polishing roller, facilitating polishing of any position on the outer wall of the steel pipe. The height of the polishing roller can be adjusted by a hydraulic cylinder, facilitating polishing of steel pipe surfaces of different sizes. The first rotating motor, through a coupling, drives the rotating frame to rotate, thereby rotating the steel pipe through the fixing action of the clamping plate and the abutment plate. This allows the polishing roller to evenly polish any position on the surface of the steel pipe. This invention solves the problems of existing seamless steel pipe surface polishing devices, which can only polish steel pipes of a single size. When polishing steel pipes of different sizes, manual mold changing is required, which is time-consuming and labor-intensive, resulting in low practicality. Furthermore, the clamping effect on the steel pipe is poor, easily leading to loosening and mold movement. Attached Figure Description

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

[0016] Figure 2 This is a front cross-sectional view of the present invention.

[0017] Figure 3 This is a top cross-sectional view of the present invention.

[0018] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0019] In the diagram: 1. Workbench; 2. Fixing plate; 3. First bidirectional threaded rod; 4. First drive motor; 5. Nut seat; 6. Limiting rod; 7. Vertical plate; 8. Rotating frame; 9. First rotating motor; 10. Coupling; 11. Second bidirectional threaded rod; 12. Clamping plate; 13. Turning handle; 14. Internal threaded sleeve; 15. Fixing rod; 16. Cylinder; 17. Abutment plate; 18. Groove; 19. Threaded rod; 20. Second drive motor; 21. Slider; 22. Support frame; 23. Hydraulic cylinder; 24. Fixing block; 25. Polishing roller; 26. Second rotating motor; 27. Observation window. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4This utility model provides an embodiment of a surface polishing device for seamless steel pipes, comprising a worktable 1, a first moving device mounted on the top of the worktable 1, the first moving device comprising a fixed plate 2, a first bidirectional threaded rod 3, a first drive motor 4, and a nut seat 5. Fixed plates 2 are mounted on both sides of the top of the worktable 1. The first bidirectional threaded rod 3 is located between the two fixed plates 2. The first drive motor 4 is mounted on one side of the first bidirectional threaded rod 3 via the fixed plate 2. Nut seats 5 are symmetrically mounted on both sides of the outer wall of the first bidirectional threaded rod 3. A vertical plate 7 is mounted on the top of the nut seat 5. Vertical plates 7 are symmetrically mounted at both ends of the top of the first moving device. A rotating frame 8 is mounted on one side of the two vertical plates 7 facing each other, and a first rotating frame 8 is mounted on one side of the two vertical plates 7 facing away from each other. A coupling 10 is installed between the motor 9, the rotating frame 8, and the first rotating motor 9. Second bidirectional threaded rods 11 are installed at both ends inside the rotating frame 8. Clamping plates 12 are symmetrically installed between the two second bidirectional threaded rods 11 on the same side. A handle 13 is installed at the top of the second bidirectional threaded rod 11, passing through the upper plate of the rotating frame 8. A fixing rod 15 is installed at the center of one side of the two rotating frames 8 facing each other. Several cylinders 16 are evenly installed on the outer wall of the other end of the fixing rod 15. An abutment plate 17 is installed at the other end of each cylinder 16. The first drive motor 4 rotates the first bidirectional threaded rod 3, causing the two nut seats 5 to move closer or further apart, thereby adjusting the distance between the two rotating frames 8. This facilitates the processing of steel pipes of different lengths and improves the practicality of the device. The first moving device has a second moving device at both ends. The second moving device includes a groove 18, a threaded rod 19, a second drive motor 20, and a slider 21. Grooves 18 are provided at both ends of the top of the worktable 1. The threaded rod 19 is installed inside the grooves 18. One side of the threaded rod 19 is connected to the first moving device via a cylinder 16. The clamping plates 12 and 17 are close together until they are in contact with the inner wall of the steel pipe, thus fixing the inside of the steel pipe. The combined action of the clamping plates 12 and 17 effectively prevents the steel pipe from loosening, improving the stability of the steel pipe polishing process. The first moving device has a second moving device at both ends. The second moving device includes a groove 18, a threaded rod 19, a second drive motor 20, and a slider 21. Grooves 18 are provided at both ends of the top of the worktable 1. The threaded rod 19 is installed inside the grooves 18. The workbench 1 is equipped with a second drive motor 20. A slider 21 is slidably connected to the outer wall of the threaded rod 19. Support frames 22 are installed on the top of the sliders 21 at both ends. A support frame 22 is also installed on the top between the two second moving devices. Hydraulic cylinders 23 are installed on both sides of the top of the support frame 22. Fixed blocks 24 are installed at the bottom of the hydraulic cylinders 23. A polishing roller 25 is installed between the two fixed blocks 24. A second rotating motor 26 is installed on one side of the polishing roller 25 through the fixed block 24. The second drive motor 20 can adjust the horizontal position of the slider 21 by driving the threaded rod 19 to rotate, thereby adjusting the horizontal position of the polishing roller 25, which facilitates polishing any position on the outer wall of the steel pipe. The height of the polishing roller 25 can be adjusted by the hydraulic cylinder 23.To facilitate polishing of steel pipes of different sizes, the first rotating motor 9 drives the rotating frame 8 to rotate via the coupling 10. This, in turn, rotates the steel pipe through the fixing action of the clamping plate 12 and the abutment plate 17. This allows the polishing roller 25 to evenly polish any position on the steel pipe surface, improving the polishing efficiency and enhancing the practicality of the device. The second rotating motor 26 drives the polishing roller 25 to rotate, further improving the polishing efficiency. The support frame 22 not only provides support for the polishing roller 25 but also prevents debris and sparks generated during polishing from flying outwards, avoiding impact on nearby workers and improving the safety of the device.

[0022] Please see Figure 3 A limiting rod 6 is installed between the two fixed plates 2. The limiting rod 6 is located at one end of the first bidirectional threaded rod 3. The nut seat 5 is slidably connected to the limiting rod 6. The limiting rod 6 can limit the nut seat 5 to prevent the nut seat 5 from rotating during movement, thereby improving the stability of the steel pipe clamping.

[0023] Please see Figure 4 The bottom of the second bidirectional threaded rod 11 is fitted with an internal threaded sleeve 14 via a rotating frame 8. The second bidirectional threaded rod 11 and the internal threaded sleeve 14 are connected by threads, which enhances the connection strength between the second bidirectional threaded rod 11 and the rotating frame 8, prevents the second bidirectional threaded rod 11 from loosening, and improves the stability of clamping the steel pipe.

[0024] Please see Figure 1 The support frame 22 has observation windows 27 installed inside both ends. The observation windows 27 are made of transparent glass, which makes it easy for staff to observe the polished parts of the steel pipe.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A surface polishing apparatus for seamless steel pipes, comprising a worktable (1), characterized in that: A first moving device is installed on the top of the workbench (1). Vertical plates (7) are symmetrically installed at both ends of the top of the first moving device. A rotating frame (8) is installed on one side of the opposite face of the two vertical plates (7). A first rotating motor (9) is installed on one side of the opposite face of the two vertical plates (7). Second bidirectional threaded rods (11) are installed at both ends inside the rotating frame (8). Clamping plates (12) are symmetrically installed between the two second bidirectional threaded rods (11) on the same side. A handle (13) is installed at the top of the second bidirectional threaded rod (11) through the upper plate of the rotating frame (8). The center position of one side of the opposite face of the two rotating frames (8) is... A fixed rod (15) is installed, and a number of cylinders (16) are evenly installed on the outer wall of the other end of the fixed rod (15). A contact plate (17) is installed on the other end of the cylinder (16). A second moving device is provided at both ends of the first moving device. A support frame (22) is installed on the top between the two second moving devices. Hydraulic cylinders (23) are installed on both sides of the top of the support frame (22). A fixed block (24) is installed at the bottom of the hydraulic cylinder (23). A polishing roller (25) is installed between the two fixed blocks (24). A second rotating motor (26) is installed on one side of the polishing roller (25) through the fixed block (24).

2. The surface polishing device for seamless steel pipes according to claim 1, characterized in that: The first moving device includes a fixed plate (2), a first bidirectional threaded rod (3), a first drive motor (4), and a nut seat (5). The fixed plates (2) are installed on both sides of the top of the workbench (1). The first bidirectional threaded rod (3) is located between the two fixed plates (2). The first drive motor (4) is installed on one side of the first bidirectional threaded rod (3) through the fixed plate (2). The nut seats (5) are symmetrically installed on both sides of the outer wall of the first bidirectional threaded rod (3). The upright plate (7) is installed on the top of the nut seat (5).

3. The surface polishing device for seamless steel pipes according to claim 1, characterized in that: The second moving device includes a groove (18), a threaded rod (19), a second drive motor (20), and a slider (21). The groove (18) is provided at both ends of the top of the worktable (1). The threaded rod (19) is installed inside the groove (18). The second drive motor (20) is installed on one side of the threaded rod (19) through the worktable (1). The slider (21) is slidably connected to the outer wall of the threaded rod (19). The support frame (22) is installed on the top of the slider (21) at both ends.

4. The surface polishing device for seamless steel pipes according to claim 2, characterized in that: A limiting rod (6) is installed between the two fixing plates (2). The limiting rod (6) is located at one end of the first bidirectional threaded rod (3). The nut seat (5) is slidably connected to the limiting rod (6).

5. The surface polishing device for seamless steel pipes according to claim 1, characterized in that: A coupling (10) is installed between the rotating frame (8) and the first rotating motor (9).

6. The surface polishing apparatus for seamless steel pipes according to claim 1, characterized in that: The bottom of the second bidirectional threaded rod (11) is fitted with an internal threaded sleeve (14) via the rotating frame (8).

7. The surface polishing apparatus for seamless steel pipes according to claim 1, characterized in that: The support frame (22) has observation windows (27) installed inside both ends.

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