High-frequency straight welded pipe notch polishing device

Abstract

The utility model relates to the technical field of welded pipe machining, and discloses a high-frequency straight welded pipe notch polishing device which comprises a bottom plate, an air cylinder is fixedly installed on the upper surface of the bottom plate, the output end of the air cylinder is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a polishing disc, and the upper surface of the bottom plate is fixedly connected with a fixing rod. A connecting block is slidably connected to the outer portion of the fixing rod and fixedly connected to the lower surface of the driving motor, and a clamping assembly is arranged on one side of the upper surface of the bottom plate. The clamping assembly comprises a bottom frame, and the bottom frame is arranged on one side of the upper surface of the bottom plate. By means of the rotating ring driven by the clamping assembly and the outer gear ring, stable rotation of the welded pipe is achieved, the polishing disc can conveniently and evenly polish the outer ring of the welded pipe notch, the polishing quality is improved, the polishing disc can be accurately aligned with the bottom of the outer ring of the welded pipe notch, and effective polishing of the outer rings of the welded pipe notches of different sizes is achieved.

Description

Technical Field

[0001] This utility model relates to the field of welded pipe processing technology, and in particular to a high-frequency straight seam welded pipe cutting and grinding device. Background Technology

[0002] High-frequency straight seam welded pipe is a type of resistance welded pipe. Its main raw material is low-carbon steel hot-rolled plate or hot-rolled strip. When high-frequency current passes through the V-shaped load circuit of the open tube blank, due to the strong skin effect and proximity effect, the high-frequency current is highly concentrated on the heated edge of the tube blank. The welding area is rapidly heated to the welding state by the heat energy. Under the action of the forging force of the extrusion roller, the two edges of the cylinder melt and fuse together. After cooling, a weld is formed. During the welding process of high-frequency straight seam welded pipe, burrs and flash may be generated near the weld due to the high temperature and metal melting. These burrs and flash not only affect the appearance quality of the pipe, but may also cause damage to equipment or pipeline systems during use. Therefore, grinding the cut can remove these burrs and flash, improving the safety of the pipe in use.

[0003] Existing technology, patent number CN221735675U, discloses a grinding device for straight seam welded pipes, which facilitates grinding the weld seams on welded pipes, effectively increasing the practicality of the grinding machine and improving the efficiency and quality of welded pipe grinding. However, existing technologies typically require manual hand-held grinding of the cut edges of straight seam welded pipes. The heavy weight of the grinding machine and the annular shape of the welded pipe can cause hand tremors when grinding along the outer ring of the cut edge, resulting in uneven grinding and reduced grinding quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a high-frequency straight seam welded pipe cutting and grinding device.

[0005] This utility model is achieved through the following technical solution:

[0006] A high-frequency straight seam welded pipe cutting and grinding device includes a base plate. A cylinder is fixedly mounted on the upper surface of the base plate. A drive motor is fixedly connected to the output end of the cylinder. A grinding disc is fixedly connected to the output end of the drive motor. A fixing rod is fixedly connected to the upper surface of the base plate. A connecting block is slidably connected to the outside of the fixing rod. The connecting block is fixedly connected to the lower surface of the drive motor. A clamping assembly is provided on one side of the upper surface of the base plate. The clamping assembly includes a base frame, which is disposed on one side of the upper surface of the base plate. Two mounting rings are fixedly connected to the upper surface of the base frame, and a rotating ring is rotatably connected inside the two mounting rings.

[0007] As a further description of the above technical solution: a fixed shell is fixedly connected to the upper surface of the rotating ring, a bidirectional stud is rotatably connected inside the fixed shell, a knob is fixedly connected to one end of the bidirectional stud, two mounting blocks are threaded to the outside of the bidirectional stud, an arc-shaped rod is fixedly connected to one side of the mounting block, a moving block is fixedly connected to one end of the arc-shaped rod, and through openings are respectively opened on both sides of the rotating ring.

[0008] As a further description of the above technical solution: the movable block is slidably connected inside the through opening, a clamping plate is fixedly connected to one side of the movable block, a rubber pad is provided on one side of the clamping plate, an external gear ring is fixedly connected to the outside of the rotating ring, a variable speed motor is fixedly connected to the inner wall of the base frame, a first gear is fixedly connected to the output end of the variable speed motor, and the first gear and the external gear ring are meshed.

[0009] As a further description of the above technical solution: the upper surface of the base plate is provided with an adjustment component, the adjustment component includes a fixing frame, the fixing frame is fixedly connected to the upper surface of the base plate, the fixing frame is disposed on one side of the base frame, a sliding groove is opened on one side of the fixing frame, and a hydraulic cylinder is fixedly installed on one side of the fixing frame.

[0010] As a further description of the above technical solution: the output end of the hydraulic cylinder is fixedly connected to a slider, and the slider is slidably connected inside the slide groove.

[0011] As a further description of the above technical solution: a rack is fixedly connected to the upper surface of the slider, and the rack is meshed with the second gear. The second gear is rotatably connected to one side of the fixed frame, and a toothed groove is opened on one side of the base frame, and the toothed groove is meshed with the second gear.

[0012] As a further description of the above technical solution: two fixed columns are fixedly connected to the upper surface of the base plate, the two fixed columns are arranged on both sides of the base frame, and connecting plates are fixedly connected to both sides of the base frame, the connecting plates being slidably connected to the outside of the fixed columns.

[0013] The beneficial effects of this utility model are:

[0014] This invention, through the inclusion of a clamping component, enhances the grinding device's ability to stably grind the cut edges of straight seam welded pipes, eliminating the need for manual hand-held grinding. Furthermore, by clamping the welded pipe with the component, the rotation of the rotating ring driven by the outer gear ring facilitates the rotation of the pipe, allowing the grinding disc to smoothly grind along the outer ring of the welded pipe cut, thus improving grinding uniformity. Additionally, the use of rubber pads increases the tightness of the clamping mechanism, reducing slippage and further enhancing grinding quality.

[0015] At the same time, by adjusting the settings of the components, it is helpful to adjust the height of the clamped welded pipe. Because the bottom position of the outer ring of welded pipes of different sizes will be different after clamping, it is difficult to align with the grinding disc, making it difficult for the grinding disc to grind the outer ring of the cut. After adjusting the height of the welded pipe using the adjustment components, it is easy for the grinding disc to align with the bottom of the outer ring of the welded pipe cut, thereby grinding the outer ring of the cut of welded pipes of different sizes, which helps to improve the adaptability and adjustability of the grinding device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the rotating ring connection proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the arc-shaped rod structure proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the mounting ring structure proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the groove structure proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the slider structure proposed in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Base plate; 2. Cylinder; 3. Drive motor; 4. Grinding disc; 5. Fixing rod; 6. Connecting block; 7. Base frame; 8. Mounting ring; 9. Rotating ring; 10. Fixing shell; 11. Double-acting stud; 12. Knob; 13. Mounting block; 14. Arc rod; 15. Moving block; 16. Through opening; 17. External gear ring; 18. Variable speed motor; 19. First gear; 20. Fixing frame; 21. Slide groove; 22. Hydraulic cylinder; 23. Slider; 24. Rack; 25. Gear groove; 26. Second gear; 27. Connecting plate; 28. Fixing column; 29. ​​Clamping plate; 30. Rubber pad. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0026] Example 1: As shown in the attached document Figure 1-6 As shown, one embodiment of this utility model provides a high-frequency straight seam welded pipe cutting and grinding device, including a base plate 1, a cylinder 2 fixedly mounted on the upper surface of the base plate 1, a drive motor 3 fixedly connected to the output end of the cylinder 2, a grinding disc 4 fixedly connected to the output end of the drive motor 3, a fixing rod 5 fixedly connected to the upper surface of the base plate 1, a connecting block 6 slidably connected to the outside of the fixing rod 5, the connecting block 6 fixedly connected to the lower surface of the drive motor 3, a clamping assembly provided on one side of the upper surface of the base plate 1, and the connecting block 6 sliding outside the fixing rod 5 improves the stability of the grinding disc 4 when moving.

[0027] The clamping assembly includes a base frame 7, which is located on one side of the upper surface of the base plate 1. Two mounting rings 8 are fixedly connected to the upper surface of the base frame 7, and rotating rings 9 are rotatably connected inside the two mounting rings 8. The rotating rings 9 facilitate the rotation of the clamped welded pipe.

[0028] Example 2: As shown in the attached document Figure 3 As shown, a fixed shell 10 is fixedly connected to the upper surface of the rotating ring 9. A bidirectional stud 11 is rotatably connected inside the fixed shell 10. A knob 12 is fixedly connected to one end of the bidirectional stud 11. Two mounting blocks 13 are threadedly connected to the outside of the bidirectional stud 11. An arc-shaped rod 14 is fixedly connected to one side of the mounting block 13. A movable block 15 is fixedly connected to one end of the arc-shaped rod 14. Through holes 16 are opened on both sides of the rotating ring 9. The movable block 15 is slidably connected inside the through holes 16. A clamping plate 29 is fixedly connected to one side of the movable block 15. A rubber pad 30 is provided on one side of the clamping plate 29. The outside of the bidirectional stud 11 is set with threads in opposite directions. The arc-shaped rod 14 is used to connect the mounting block 13 and the movable block 15. The rubber pad 30, due to its elastic texture, facilitates anti-slip and fastening.

[0029] As attached Figure 2 As shown, an external gear ring 17 is fixedly connected to the outside of the rotating ring 9, and a variable speed motor 18 is fixedly connected to the inner wall of the base frame 7. A first gear 19 is fixedly connected to the output end of the variable speed motor 18. The first gear 19 and the external gear ring 17 are meshed, and the tooth groove 25 of the external gear ring 17 matches the tooth groove 25 of the first gear 19.

[0030] As attached Figure 5As shown, an adjustment assembly is provided on the upper surface of the base plate 1. The adjustment assembly includes a fixing frame 20, which is fixedly connected to the upper surface of the base plate 1. The fixing frame 20 is located on one side of the base frame 7, and a sliding groove 21 is provided on one side of the fixing frame 20. The fixing frame 20 is used to install the hydraulic cylinder 22 and the second gear 26.

[0031] As attached Figure 4 As shown, a hydraulic cylinder 22 is fixedly installed on one side of the fixed frame 20. A slider 23 is fixedly connected to the output end of the hydraulic cylinder 22. The slider 23 is slidably connected inside the slide groove 21. A rack 24 is fixedly connected to the upper surface of the slider 23. The rack 24 is meshed with the second gear 26. The second gear 26 is rotatably connected to one side of the fixed frame 20. A toothed groove 25 is opened on one side of the base frame 7. The toothed groove 25 is meshed with the second gear 26. When the slider 23 slides inside the slide groove 21, it improves the stability of the rack 24 when it moves.

[0032] As attached Figure 1 As shown, two fixing posts 28 are fixedly connected to the upper surface of the base plate 1. The two fixing posts 28 are set on both sides of the base frame 7. Connecting plates 27 are fixedly connected to both sides of the base frame 7. The connecting plates 27 are slidably connected to the outside of the fixing posts 28 to improve the stability of the base frame 7 when it moves.

[0033] Working principle: When grinding the cut end of the welded pipe, the cut welded pipe is first passed through the inside of the mounting ring 8 and the rotating ring 9, so that the cut end protrudes from the inside of the mounting ring 8 on one side. Then, the knob 12 is turned to drive the double-direction stud 11 to rotate. Under the action of the opposite direction of the threads on the outside of the double-direction stud 11, the double-direction stud 11 drives the two mounting blocks 13 to move relative to each other inside the fixed shell 10. With the connection of the arc rod 14 and the moving block 15, the two clamping plates 29 are driven to move closer to both sides of the welded pipe, so that the rubber pads 30 are tightly attached to both sides of the welded pipe, and the welded pipes of different sizes are clamped and fixed.

[0034] When the bottom of the outer ring of the welded pipe cut is below the grinding disc 4, the hydraulic cylinder 22 is activated, which drives the slider 23 to slide inside the slide groove 21, causing the rack 24 to move down. Under the action of meshing with the second gear 26, the second gear 26 is driven to rotate, so that the second gear 26 drives the base frame 7 to rise under the action of the tooth groove 25. And under the limiting action of the connecting plate 27 sliding outside the fixed column 28, it is easy for the base frame 7 to move up stably, thereby adjusting the height of the clamped welded pipe.

[0035] Then, during the grinding process, the drive motor 3 is turned on to rotate the grinding disc 4. Then, the cylinder 2 is turned on to drive the drive motor 3, thereby moving the grinding disc 4 closer to the cut side of the welded pipe. Then, the variable speed motor 18 is turned on, and its output end drives the first gear 19 to rotate, which in turn drives the outer gear ring 17 to rotate. The outer gear ring 17 drives the rotating ring 9 to rotate, thereby driving the clamped welded pipe to rotate, which makes it easier to grind the welded pipe along the outer ring of the cut.

[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A high-frequency straight seam welded pipe cutting and grinding device, comprising a base plate (1), characterized in that: A cylinder (2) is fixedly installed on the upper surface of the base plate (1). A drive motor (3) is fixedly connected to the output end of the cylinder (2). A grinding disc (4) is fixedly connected to the output end of the drive motor (3). A fixing rod (5) is fixedly connected to the upper surface of the base plate (1). A connecting block (6) is slidably connected to the outside of the fixing rod (5). The connecting block (6) is fixedly connected to the lower surface of the drive motor (3). A clamping assembly is provided on one side of the upper surface of the base plate (1). The clamping assembly includes a base frame (7), which is disposed on one side of the upper surface of the base plate (1). Two mounting rings (8) are fixedly connected to the upper surface of the base frame (7), and rotating rings (9) are rotatably connected inside the two mounting rings (8).

2. The high-frequency straight seam welded pipe cutting and grinding device according to claim 1, characterized in that: A fixed shell (10) is fixedly connected to the upper surface of the rotating ring (9). A bidirectional stud (11) is rotatably connected inside the fixed shell (10). A knob (12) is fixedly connected to one end of the bidirectional stud (11). Two mounting blocks (13) are threadedly connected to the outside of the bidirectional stud (11). An arc-shaped rod (14) is fixedly connected to one side of the mounting block (13). A moving block (15) is fixedly connected to one end of the arc-shaped rod (14). Through holes (16) are respectively opened on both sides of the rotating ring (9).

3. The high-frequency straight seam welded pipe cutting and grinding device according to claim 2, characterized in that: The movable block (15) is slidably connected inside the through opening (16). A clamping plate (29) is fixedly connected to one side of the movable block (15). A rubber pad (30) is provided on one side of the clamping plate (29). An external gear ring (17) is fixedly connected to the outside of the rotating ring (9). A variable speed motor (18) is fixedly connected to the inner wall of the base frame (7). A first gear (19) is fixedly connected to the output end of the variable speed motor (18). The first gear (19) and the external gear ring (17) are meshed.

4. The high-frequency straight seam welded pipe cutting and grinding device according to claim 1, characterized in that: An adjustment assembly is provided on the upper surface of the base plate (1). The adjustment assembly includes a fixing frame (20), which is fixedly connected to the upper surface of the base plate (1). The fixing frame (20) is located on one side of the base frame (7). A sliding groove (21) is provided on one side of the fixing frame (20). A hydraulic cylinder (22) is fixedly installed on one side of the fixing frame (20).

5. The high-frequency straight seam welded pipe cutting and grinding device according to claim 4, characterized in that: The output end of the hydraulic cylinder (22) is fixedly connected to a slider (23), which is slidably connected inside the groove (21).

6. The high-frequency straight seam welded pipe cutting and grinding device according to claim 5, characterized in that: A rack (24) is fixedly connected to the upper surface of the slider (23), and the rack (24) is meshed with the second gear (26). The second gear (26) is rotatably connected to one side of the fixed frame (20), and a toothed groove (25) is opened on one side of the base frame (7), and the toothed groove (25) is meshed with the second gear (26).

7. The high-frequency straight seam welded pipe cutting and grinding device according to claim 1, characterized in that: Two fixed posts (28) are fixedly connected to the upper surface of the base plate (1). The two fixed posts (28) are set on both sides of the base frame (7). Connecting plates (27) are fixedly connected to both sides of the base frame (7). The connecting plates (27) are slidably connected to the outside of the fixed posts (28).

Images