Weld joint polishing device for threaded welded pipe
By adopting a sliding clamping structure and a sliding grinding structure in the weld grinding device, the existing devices have solved the problem of unstable clamping and insufficient grinding of threaded welded pipes of different diameters, and the effect of stable fixation and full grinding is achieved.
Patent Information
- Application Number
- CN202421205180.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-30
AI Technical Summary
When the existing weld grinding device grinds the threaded welded pipe, the clamping and fixing device is insufficient, resulting in the movement of the welded pipe and the grinding position offset, and the threaded welded pipes of different diameters cannot be stably fixed and fully polished.
A threaded welded pipe welded seam grinding device is designed, adopting a sliding clamping structure and a sliding grinding structure. The welded pipes of different diameters are fixed by rotary clamping, and the distance adjustment of the grinding rods is used to achieve full bonding and grinding of welded pipes of different diameters.
It effectively avoids the grinding position offset caused by unstable clamping, ensures stable fixation and sufficient grinding of threaded welded pipes of different diameters, and improves grinding efficiency and quality.
Smart Images
Figure CN222537172U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of weld grinding, in particular to a weld grinding device for a threaded welded pipe. Background Art
[0002] Threaded welded pipe is a welded steel pipe with a special surface structure. Its outer surface has spiral patterns, which not only increases the surface area of the pipe, but also helps to improve the friction and bonding force with other objects. It is often used in oil and natural gas transportation, building structures, machinery manufacturing and other industries; for example, it is used to transport oil and gas in oil extraction and as scaffolding in construction; threaded welded pipe can effectively withstand high pressure and fluid impact to ensure the safety and stability of the transportation process. At the end of the production of threaded welded pipe, the weld of the threaded welded pipe needs to be polished, so a weld grinding device is needed for polishing.
[0003] The weld grinding device is a tool or equipment specially used for grinding welds. It usually has the functions of trimming the weld shape and meeting the process requirements. Its structure includes an angle grinder, an adjustment device, a control system and a clamping structure. The control system controls the clamping structure to fix the threaded weld pipe, and adjusts the grinding angle through the adjustment device. Finally, the weld pipe is ground by the angle grinder.
[0004] The existing weld grinding device has deficiencies in its clamping and fixing device when grinding threaded welded pipes, and the welded pipe may move during the grinding process, which may cause the grinding position to shift during the grinding process, resulting in insufficient grinding; and the weld grinding device of Xi'an Ou has deficiencies in applicability. When facing the grinding operation of threaded welded pipes of different calibers, the threaded welded pipes of different calibers cannot be fixed stably. Therefore, a threaded welded pipe weld grinding device is proposed to address the above problems. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art and address the problems existing in the prior art equipment, the utility model provides a threaded welded pipe weld grinding device.
[0006] The technical solution adopted by the utility model to solve the technical problem is a threaded welded pipe weld grinding device, comprising an operating table, a grinding table is arranged on the top of the operating table, a hole is opened at one end of the grinding table, a grinding structure is arranged inside the hole, and the grinding structure comprises a No. 1 grinding rod, one end of the No. 1 grinding rod is connected to a No. 3 connecting ring, an L-shaped connecting rod is welded to the outside of the No. 3 connecting ring, the other end of the L-shaped connecting rod is connected to a driving shaft, a guide rail is welded to the top of the L-shaped connecting rod, a slider is connected to the top of the slider, a limit plate is welded to the top of the slider, one end of the limit plate is welded to the No. 1 connecting ring, and the No. 1 connecting ring is welded to one end of the limit plate. A driving shaft is inserted inside the No. 1 connecting ring, and the driving shaft is connected to the output ends of the No. 1 motor and the No. 2 motor. The outside of the driving shaft is connected to the No. 1 driving gear and the No. 2 driving gear, and the No. 1 driving gear and the No. 2 driving gear are respectively meshed and connected to the No. 1 transmission gear and the No. 2 transmission gear; a slide plate is welded to the position of the driving shaft near the No. 1 driving gear and the No. 2 driving gear, and the slide plate is inserted inside the No. 2 driving gear and the No. 1 driving gear; the No. 1 transmission gear and the No. 2 transmission gear ports are welded to connect the No. 2 grinding rod and the No. 1 grinding rod; the bottom end of the driving shaft is connected to a fixing plate, and the welded pipe is polished by this design.
[0007] Preferably, clamping platforms are welded on both sides of the top of the operating table, a circular through hole is opened in the center of the clamping platform, a clamping structure is arranged inside the through hole, the clamping structure includes a handle, a connecting rod is welded to the bottom end of the handle, both ends of the connecting rod are respectively connected to one side of the sliding column by a No. 2 fixed column and a No. 1 fixed column, an anti-slip platform is arranged between the handle and the sliding column, and an arc-shaped hole is arranged on the anti-slip platform near the hole; thus, welding pipes of different calibers are fixed by a rotating clamping design.
[0008] Preferably, a limit plate is provided on the inner side of the anti-slip table, and the outer end of the limit plate is welded to the clamping table; two slide rails are opened in the center of the limit plate, and slide columns are inserted into the slide rails; grooves are provided inside the guide rails, and the diameter of the grooves is consistent with the diameter of the slider; through holes are opened in the center of the No. 2 driving gear and the No. 1 driving gear, and the diameter of the through holes is consistent with the diameter of the slide plate; table legs are welded to the four corners of the bottom end of the operating table; this design increases the stability and firmness of the device operation.
[0009] The utility model is beneficial in that:
[0010] The utility model adopts the design of adding sliding clamping structures at both ends of the device, and the method of pushing the handle to drive the anti-slip platform to converge and thereby clamp the threaded welded pipe to adapt to the welding operation of threaded welded pipes with different diameters, thereby avoiding the problem that the original device is unstable in clamping threaded welded pipes with different diameters; and adopts the design of adding a sliding structure inside the grinding structure, and the effect of the distance change between the two grinding rods when the grinding rod is lifted, so as to solve the problem that the grinding operation of threaded welded pipes with different diameters cannot be fully fitted and ground. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0012] Figure 1 It is a schematic diagram of the overall structure of the device;
[0013] Figure 2 This is a schematic diagram of the polishing structure;
[0014] Figure 3 is a schematic diagram of the clamping structure;
[0015] Figure 4 It is a schematic diagram of the back of the clamping structure;
[0016] In the figure: 1. operating table; 2. handle; 3. clamping table; 4. grinding rod No. 1; 5. grinding table; 6. anti-slip table; 7. table leg; 8. motor No. 1; 9. driving shaft; 10. connecting ring No. 1; 11. connecting ring No. 2; 12. driving gear No. 1; 13. transmission gear No. 1; 14. L-shaped connecting rod; 15. connecting ring No. 3; 16. grinding rod No. 2; 17. limiting plate; 18. fixing plate; 19. driving gear No. 2; 20. sliding plate; 21. motor No. 2; 22. transmission gear No. 2; 23. sliding block; 24. guide rail; 25. limiting plate; 26. fixing column No. 1; 27. connecting rod; 28. fixing column No. 2; 29. sliding column; 30. sliding rail. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-4As shown, a threaded welded pipe weld grinding device comprises an operating table 1, a grinding table 5 is arranged at the top of the operating table 1, a hole is opened at one end of the grinding table 5, a grinding structure is arranged inside the hole, the grinding structure comprises a No. 1 grinding rod 4, one end of the No. 1 grinding rod 4 is connected to a No. 3 connecting ring 15, an L-shaped connecting rod 14 is welded to the outside of the No. 3 connecting ring 15, the other end of the L-shaped connecting rod 14 is connected to a driving shaft 9, a guide rail 24 is welded to the top of the L-shaped connecting rod 14, and the guide rail 24 is welded to the top of the L-shaped connecting rod 14. The top end is connected to a slider 23, the top end of the slider 23 is welded with a limit plate 17, one end of the limit plate 17 is welded with a No. 1 connecting ring 10, a driving shaft 9 is inserted inside the No. 1 connecting ring 10, the driving shaft 9 is connected to the output ends of the No. 1 motor 8 and the No. 2 motor 21, the driving shaft 9 is externally connected to the No. 1 driving gear 12 and the No. 2 driving gear 19, the No. 1 driving gear 12 and the No. 2 driving gear 19 are respectively meshed and connected to the No. 1 transmission gear 13 and the No. 2 transmission gear 22; the driving shaft 9 is close to the No. 1 transmission gear 13 and the No. 2 transmission gear 22; A slide plate 20 is welded near the position of the No. 1 driving gear 12 and the No. 2 driving gear 19, and the slide plate 20 is inserted into the No. 2 driving gear 19 and the No. 1 driving gear 12; the No. 1 transmission gear 13 and the No. 2 transmission gear 22 are welded to the No. 2 grinding rod 16 and the No. 1 grinding rod 4; the bottom end of the driving shaft 9 is connected to the fixing plate 18; when the threaded welded pipe is being ground, the operator first lifts the No. 1 grinding rod 4 according to the diameter of the threaded welded pipe, and at this time the slider 23 moves along the track of the guide rail 24 The first gear 12 and the second gear 19 start to move, and the second driving gear 19 moves along the track of the slide. When the distance exchange is completed, the operator starts the first motor 8 and the second motor 21. At this time, driven by the motor, the driving shaft 9 starts to rotate, and the first driving gear 12 and the second driving gear 19 drive the first transmission gear 13 and the second transmission gear 22 to start rotating, thereby driving the first grinding rod 4 and the second grinding rod 16 to start rotating and perform grinding operations on the weld of the threaded welded pipe.
[0019] Clamping platforms 3 are welded on both sides of the top of the operating table 1. A circular through hole is opened in the center of the clamping platform 3. A clamping structure is arranged inside the through hole. The clamping structure includes a handle 2. A connecting rod 27 is welded to the bottom of the handle 2. The two ends of the connecting rod 27 are respectively connected to one side of a sliding column 29 by a No. 2 fixing column 28 and a No. 1 fixing column 26. An anti-slip platform 6 is arranged between the handle 2 and the sliding column 29. The anti-slip platform 6 is provided with an arc-shaped hole near the hole; a limit plate 25 is arranged on the inner side of the anti-slip platform 6. The outer end of the limit plate 25 is welded to the clamping platform 3, and two slide rails 30 are opened in the center of the limit plate 25, and a slide column 29 is inserted inside the slide rail 30; when the threaded welded pipe is clamped and fixed, the operator inserts the threaded welded pipe into the anti-slip platform 6, and then pushes the handle 2. At this time, the slide column 29 starts to move along the track of the slide rail 30 under the push of the handle 2, and when it moves to the lower end, the two anti-slip platforms 6 are linked by the connecting rod 27 to start to converge, and the threaded welded pipe is clamped.
[0020] Working principle: when using the device to perform welding operation on the threaded welded pipe, the operator first inserts the threaded welded pipe into the anti-skid platform 6, and then pushes the handle 2. At this time, the sliding column 29 starts to move along the track of the slide rail 30 under the push of the handle 2, and when it moves to the lower end, the two anti-skid platforms 6 are linked by the connecting rod 27 to start to converge and clamp the threaded welded pipe; then the operator lifts the No. 1 grinding rod 4 according to the diameter of the threaded welded pipe, and the slider 23 starts to move along the track of the guide rail 24, and the No. 2 driving gear 19 moves along the track of the slide plate. When the distance exchange is completed, the operator starts the No. 1 motor 8 and the No. 2 motor 21. At this time, driven by the motor, the driving shaft 9 starts to rotate, and the No. 1 driving gear 12 and the No. 2 driving gear 19 drive the No. 1 transmission gear 13 and the No. 2 transmission gear 22 to start rotating through the driving shaft 9, thereby driving the No. 1 grinding rod 4 and the No. 2 grinding rod 16 to start rotating and perform grinding operation on the weld of the threaded welded pipe.
[0021] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0022] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A threaded welded pipe weld grinding device, characterized in that: The invention comprises an operating table (1), wherein a grinding table (5) is provided at the top of the operating table (1), a hole is formed at one end of the grinding table (5), a grinding structure is provided inside the hole, the grinding structure comprises a No. 1 grinding rod (4), one end of the No. 1 grinding rod (4) is connected to a No. 3 connecting ring (15), an L-shaped connecting rod (14) is welded to the outside of the No. 3 connecting ring (15), the other end of the L-shaped connecting rod (14) is connected to a driving shaft (9), a guide rail (24) is welded to the top of the L-shaped connecting rod (14), the top of the guide rail (24) is connected to a sliding block (23), a limiting plate (17) is welded to the top of the sliding block (23), one end of the limiting plate (17) is welded to a No. 1 connecting ring (10), a driving shaft (9) is inserted inside the No. 1 connecting ring (10), and the driving shaft (9) is inserted inside the No. 1 connecting ring (10). The shaft (9) is connected to the output ends of the first motor (8) and the second motor (21); the driving shaft (9) is externally connected to the first driving gear (12) and the second driving gear (19); the first driving gear (12) and the second driving gear (19) are respectively meshed and connected to the first transmission gear (13) and the second transmission gear (22); a slide plate (20) is welded to the driving shaft (9) near the first driving gear (12) and the second driving gear (19); the slide plate (20) is inserted into the second driving gear (19) and the first driving gear (12); the ports of the first transmission gear (13) and the second transmission gear (22) are welded to the second grinding rod (16) and the first grinding rod (4); the bottom end of the driving shaft (9) is connected to the fixing plate (18).
2. A threaded welded pipe weld grinding device according to claim 1, characterized in that: Clamping platforms (3) are welded on both sides of the top of the operating table (1), and a circular through hole is opened in the center of the clamping platform (3). A clamping structure is arranged inside the through hole, and the clamping structure comprises a handle (2). A connecting rod (27) is welded to the bottom of the handle (2). The two ends of the connecting rod (27) are respectively connected to one side of the sliding column (29) by a No. 2 fixing column (28) and a No. 1 fixing column (26). An anti-slip platform (6) is arranged between the handle (2) and the sliding column (29), and an arc-shaped excavation hole is arranged on the anti-slip platform (6) near the excavation hole.
3. A threaded welded pipe weld grinding device according to claim 2, characterized in that: A limiting plate (25) is provided on the inner side of the anti-slip platform (6), the outer end of the limiting plate (25) is welded to the clamping platform (3), two slide rails (30) are opened at the center of the limiting plate (25), and a slide column (29) is inserted into the interior of the slide rail (30).
4. A threaded welded pipe weld grinding device according to claim 1, characterized in that: A groove is provided inside the guide rail (24), and the diameter of the groove is consistent with the diameter of the slider (23).
5. A threaded welded pipe weld grinding device according to claim 1, characterized in that: The center of the second driving gear (19) and the first driving gear (12) is provided with a perforation, and the diameter of the perforation is consistent with the diameter of the slide plate (20).
6. A threaded welded pipe weld grinding device according to claim 1, characterized in that: Table legs (7) are welded at the four corners of the bottom end of the operating table (1).