A mobile automatic polishing equipment for stainless steel prefabricated pipes

Abstract

The invention relates to the technical field of stainless steel pipeline polishing, and discloses a mobile stainless steel prefabricated pipeline automatic polishing equipment, comprising a workbench, a rotating mechanism is arranged on the top of the workbench, an inner wall grinding mechanism is arranged on the top of the workbench for grinding the inner wall of the pipeline, and an outer wall grinding mechanism is arranged on the top of the workbench for grinding the outer wall of the pipeline. By arranging a grinding component on a traction line, the traction line can pass through the inner wall of the pipeline to drive the grinding component to move on the inner wall of the pipeline for convenient grinding, so as to avoid the problem that the inner wall is inconvenient to grind due to the pipeline being too deep. Through the positioning and guiding of the guide wheel, the traction line and the pipeline axis are always in a state of overlap, so that when the traction line is pulled, the grinding component can be smoothly moved on the inner wall of the pipeline, so as to avoid the situation where the deviation affects the grinding.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel pipeline polishing, and in particular to a mobile automatic polishing device for stainless steel prefabricated pipelines. Background Art

[0002] Polishing can remove burrs, scales, welding marks, and some impurities and defects on the surface of stainless steel pipes, making the surface of stainless steel pipes smoother and flatter, and improving the performance of the product. Most of the existing stainless steel pipes are polished by using mechanical equipment such as polishers and belt machines, and the outer wall of the stainless steel pipe is polished by the rotation of the grinding wheel. For polishing the inner wall of the pipe, it is necessary to use components such as long-handled grinding wheel heads to reach into the interior of the pipe for operation. However, for long pipes, it is difficult for the long-handled grinding wheel head to reach into the interior of the pipe, and there is a too long distance between the support point and the force arm, which increases the pressure in the support area and causes increased wear of the support components.

[0003] Prior art, such as the Chinese patent "CN117564901A", provides a stainless steel pipe polishing device and a polishing method thereof, which relates to the field of polishing processing technology, including a workbench, a through slot is opened in the middle of the workbench, a limiting mechanism for limiting the stainless steel pipe is arranged inside the through slot, an internal polishing assembly for polishing the inner wall of the stainless steel pipe is arranged above the through slot, and traction assemblies for pulling the internal polishing assembly to move through the interior of the stainless steel pipe are arranged on both sides of the through slot; the internal polishing assembly includes a connecting rope, and a plurality of polishing units are fixedly connected to the middle of the connecting rope; the invention realizes polishing of the inner wall of the stainless steel pipe by pulling the internal polishing assembly through the interior of the stainless steel pipe by the traction assembly; compared with the polishing operation performed by extending the long-handled grinding wheel head and other components into the pipe.

[0004] However, the prior art has the following problems: in this solution, the inner wall of the pipe is polished by moving the polishing roller inside the pipe with a connecting rope, but since the polishing roller is fixedly installed on the outside of the mounting plate, its adaptability to pipes with different inner diameters is poor, so that during polishing, the gap between the polishing roller and the inner wall of the pipe is relatively small and relatively fixed. Secondly, when processing pipes with poor inner wall flatness, the installation of the polishing roller may get stuck in the pipe. Summary of the invention

[0005] The purpose of the present invention is to provide a mobile stainless steel prefabricated pipe automatic polishing equipment to solve the above problems and overcome the defects of the prior art, as described in detail below.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a mobile stainless steel prefabricated pipe automatic polishing device, comprising a workbench, the top of which is provided with a rotating mechanism for driving the pipe to rotate;

[0008] An inner wall grinding mechanism is provided on the top of the workbench for grinding the inner wall of the pipeline;

[0009] An outer wall grinding mechanism is provided on the top of the workbench for grinding the outer wall of the pipeline;

[0010] The inner wall grinding mechanism includes two groups of brackets, which are respectively fixedly connected to the two ends of the workbench, and the two ends of the top of the brackets are rotatably connected to guide wheels, and the guide wheels are all arranged horizontally, and traction lines are arranged on the outer walls of the four groups of guide wheels, and the traction lines are provided with grinding components.

[0011] Preferably, the grinding assembly comprises a support frame, the support frame is fixedly connected to the traction line, three hinged plates are hinged at both ends of the inner wall of the support frame, and a first grinding wheel is rotatably connected between two hinged plates at corresponding positions.

[0012] Preferably, three arc grooves are formed on the surfaces of both ends of the support frame, and arc blocks are slidably arranged on the inner walls of the arc grooves. The outer walls of the arc blocks are hinged with elastic telescopic rods, and the ends of the elastic telescopic rods away from the arc blocks are hinged to the hinged plates.

[0013] Preferably, the surfaces at both ends of the support frame are fixedly connected with a slide cylinder, the outer wall of the slide cylinder is radially slid with a first end face ratchet, the outer wall of the slide cylinder is located between the first end face ratchet and the end face of the support frame and is movably sleeved with a return spring, the end face of the first end face ratchet is meshingly connected with a second end face ratchet, the outer wall of the second end face ratchet is fixedly connected with three groups of connecting buckles, and the three groups of connecting buckles are respectively hinged to the elastic telescopic rods at corresponding positions.

[0014] Preferably, both ends of the inner wall of the hinged plate are rotatably connected with synchronous wheels for driving the first grinding wheel to rotate, and the two synchronous wheels are connected by a synchronous belt transmission. A dual-axis motor is fixedly connected at the center of the support frame, and the rotating shafts at both ends of the dual-axis motor are fixedly connected with first gears. The outer wall of the first gear is meshingly connected with three second gears, and the second gears are respectively mounted on the rotating shafts of the synchronous wheels at corresponding positions.

[0015] Preferably, the rotating mechanism includes a first linear motor, which is fixedly connected to the top of the workbench, and a support plate is fixedly connected to one end of the first linear motor on the top of the workbench. A tail stock is slidably connected to the top of the first linear motor, and a rotating drum is rotatably connected to the tail stock and the inner wall of the support plate, and a three-jaw chuck is fixedly connected to the corresponding end of the two groups of rotating drums for clamping the pipe, and the three-jaw chuck is at the same horizontal height as the center line of the traction line.

[0016] Preferably, a third gear is fixedly sleeved on the outer wall of the rotating drum on the support plate, a fourth gear is meshingly connected to the outer wall of the third gear, and a spindle motor for driving the fourth gear to rotate is fixedly connected to the outer wall of the support plate through a mounting frame.

[0017] Preferably, the outer wall grinding mechanism includes a side table, which is fixedly connected to one side of the workbench, and the top of the side table is fixedly connected to a second linear motor, and the top of the second linear motor is slidably connected to a base, and a slide groove is provided on the top of the base, and the inner wall of the slide groove is slidably connected to a slide, and the top of the slide is rotatably connected to a second grinding wheel through a bracket near the side of the pipe to be polished, and the second grinding wheel is at the same height as the axis of the pipe to be polished, and the inner wall of the slide groove is rotatably connected to a threaded rod, and the threaded rod is threadedly connected to the inner wall of the slide, and one end of the threaded rod is fixedly connected to a handwheel.

[0018] Preferably, a servo motor is fixedly connected to the top of the slide, a pulley is fixedly connected to the output end shaft of the servo motor and one end corresponding to the second grinding wheel, and the two pulleys are connected by a transmission belt.

[0019] Preferably, the base is fixedly connected to the traction line through a linkage rod, and both ends of the traction line are connected through threaded cooperation of a threaded sleeve and a threaded joint.

[0020] The beneficial effects are:

[0021] 1. The present invention arranges a grinding assembly on the traction line, and the traction line can pass through the inner wall of the pipe, so as to drive the grinding assembly to move on the inner wall of the pipe to facilitate grinding, thereby avoiding the problem that the inner wall is inconvenient to grind due to the pipe being too deep. Through the positioning and guiding of the guide wheel, the traction line and the axis line of the pipe are always in a state of coincidence, so that when the traction line is pulled, the grinding assembly can be smoothly moved on the inner wall of the pipe, avoiding the situation where deviation affects the grinding, thereby avoiding the problem that the conventional long-handled grinding wheel head is difficult to extend into the interior of the pipe, and there is a problem that the distance of the force arm from the support point is too long, which increases the pressure in the support area and causes the aggravated wear of the support components.

[0022] 2. The present invention arranges three sets of connecting buckles on the outer wall of the second end face ratchet wheel to connect the elastic telescopic rods at corresponding positions, so that when the second end face ratchet wheel rotates, the elastic telescopic rods connected by the three sets of connecting buckles can pull the three sets of hinged plates to rotate together, and when the arc block is limited by the arc groove, the first grinding wheel in the hinged plate can be retracted or expanded, so as to facilitate the adjustment of the spacing of the first grinding wheels according to the inner diameters of different pipes, and because the first end face ratchet wheel radially sliding on the outer wall of the slide cylinder will press against the second end face ratchet wheel under the tension of the reset spring, and be stuck for limiting, so as to prevent the second end face ratchet wheel from rotating in the direction of the retraction of the first grinding wheel, so as to ensure the stability of the hinged plate during grinding, and avoid the situation where the pressure applied by the first grinding wheel to the inner wall of the pipe is insufficient, resulting in the problem of reduced grinding effect.

[0023] 3. The present invention adopts an elastic telescopic rod as a support method for the first grinding wheel of the hinged plate. When grinding a pipe with poor inner wall flatness, the elastic telescopic rod has the elasticity to move, so that the first grinding wheel has a certain displacement space during grinding, thereby avoiding getting stuck on the inner wall of the pipe.

[0024] Fourth, the present invention connects the base and the traction line by setting a linkage rod, so that when the second linear motor drives the base to move, it will drive the traction line to move together, so as to facilitate the second grinding wheel above the base and the first grinding wheel on the traction line to grind different areas of the pipe, and by setting the rotation direction of the second grinding wheel and the first grinding wheel to be opposite to the rotation direction of the pipe, the grinding efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the overall appearance of the present invention;

[0027] Figure 2 The present invention Figure 1 A magnified image of point A;

[0028] Figure 3 It is a structural schematic diagram of the inner wall grinding mechanism in the present invention;

[0029] Figure 4 It is a diagram showing the internal structure of the hinged plate in the present invention;

[0030] Figure 5 It is a structural schematic diagram of the traction rod in the present invention;

[0031] Figure 6 It is a structural display diagram of the driving component in the present invention;

[0032] Figure 7 It is a structural display diagram of the top of the base in the present invention.

[0033] The accompanying drawings are described as follows: 1. workbench; 2. support plate; 3. first linear motor; 4. tailstock; 5. rotating cylinder; 6. three-jaw chuck; 7. bracket; 8. guide wheel; 9. traction line; 10. linkage rod; 11. threaded sleeve; 12. threaded joint; 13. support frame; 14. hinged plate; 15. first grinding wheel; 16. arc groove; 17. arc block; 18. elastic telescopic rod; 19. slide cylinder; 20. first end face ratchet; 21. second end face ratchet; 22. reset Spring; 23. Dual-axis motor; 24. First gear; 25. Second gear; 26. Synchronous wheel; 27. Synchronous belt; 28. Third gear; 29. ​​Fourth gear; 30. Spindle motor; 31. Mounting frame; 32. Side table; 33. Second linear motor; 34. Base; 35. Slide; 36. Slide; 37. Threaded rod; 38. Handwheel; 39. Support rod; 40. Second grinding wheel; 41. Servo motor; 42. Pulley; 43. Transmission belt; 44. Connecting buckle. DETAILED DESCRIPTION

[0034] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0035] See also Figure 1 - Figure 7As shown, the present invention provides a mobile automatic polishing device for prefabricated stainless steel pipes, comprising a workbench 1, a rotating mechanism is arranged on the top of the workbench 1 for driving the pipe to rotate, an inner wall grinding mechanism is arranged on the top of the workbench 1 for grinding the inner wall of the pipe, and an outer wall grinding mechanism is arranged on the top of the workbench 1 for grinding the outer wall of the pipe, wherein the inner wall grinding mechanism comprises two groups of brackets 7, the two groups of brackets 7 are respectively fixedly connected to the two ends of the workbench 1, and the two ends of the top of the brackets 7 are rotatably connected to guide wheels 8, and the guide wheels 8 are all arranged horizontally, and traction lines 9 are arranged on the outer walls of the four groups of guide wheels 8, and a grinding assembly is arranged on the traction line 9. By arranging the grinding assembly on the traction line 9, the traction line 9 can pass through the inner wall of the pipe to drive the grinding assembly to move on the inner wall of the pipe to facilitate grinding, so as to avoid the inconvenience of grinding the inner wall due to the pipe being too deep. The problem is that by positioning and guiding the guide wheel 8, the traction line 9 and the axis line of the pipeline are always in a state of overlap, so that when the traction line 9 is pulled, the grinding assembly can move smoothly on the inner wall of the pipeline to avoid the situation where the deviation affects the grinding. The grinding assembly includes a support frame 13, and the support frame 13 is fixedly connected to the traction line 9. Three hinged plates 14 are hinged at both ends of the inner wall of the support frame 13, and a first grinding wheel 15 is rotatably connected between two hinged plates 14 at corresponding positions. By setting a rotatable first grinding wheel 15 at a position between the hinged plates 14 on the support frame 13, it is convenient to grind the inner wall of the pipeline, and by connecting the first grinding wheel 15 through the hinged plate 14, the distance between the first grinding wheels 15 can also be adjusted by rotating the hinged plate 14, so as to facilitate the grinding of pipelines with different inner diameters by retracting or unfolding the three groups of first grinding wheels 15.

[0036] In this embodiment, please refer to Figure 1 , Figure 3 , Figure 5The surfaces of both ends of the support frame 13 are provided with three arc grooves 16, and the inner wall of the arc groove 16 is provided with an arc block 17, and the outer wall of the arc block 17 is hinged with an elastic telescopic rod 18, and the end of the elastic telescopic rod 18 away from the arc block 17 is hinged to the hinge plate 14. By setting the elastic telescopic rod 18 to connect the arc block 17 and the hinge plate 14, when the arc block 17 slides in the arc groove 16, the elastic telescopic rod 18 will pull the hinge plate 14 to rotate, thereby adjusting the distance between the first grinding wheel 15 on the hinge plate 14, so as to facilitate the adjustment of the first grinding wheel according to the inner diameter of different pipes. 15 spacing can be adjusted, and an elastic telescopic rod 18 is used as a support method for the first grinding wheel 15 of the hinged plate 14. When grinding a pipe with poor inner wall flatness, the elastic telescopic rod 18 has a certain displacement space during grinding, thereby avoiding the situation of being stuck on the inner wall of the pipe. The surfaces of both ends of the support frame 13 are fixedly connected with a slide cylinder 19, and the outer wall of the slide cylinder 19 is radially slid with a first end face ratchet 20. The outer wall of the slide cylinder 19 is located between the first end face ratchet 20 and the end face of the support frame 13. A reset spring 22 is movably sleeved The end surface of the first end surface ratchet 20 is meshedly connected with the second end surface ratchet 21, and the outer wall of the second end surface ratchet 21 is fixedly connected with three groups of connecting buckles 44, and the three groups of connecting buckles 44 are respectively hinged with the elastic telescopic rods 18 at corresponding positions. By arranging three groups of connecting buckles 44 on the outer wall of the second end surface ratchet 21 to connect the elastic telescopic rods 18 at corresponding positions, when it is necessary to adjust the distance between the three groups of first grinding wheels 15 according to the inner diameter of the catheter, the first end surface ratchet 20 can be pushed by fingers to slide on the outer wall of the slide cylinder 19 to separate the first end surface ratchet 20 from the second end surface ratchet 21, and then The second end face ratchet 21 is rotated to make the elastic telescopic rod 18 connected to the three groups of connecting buckles 44 pull the first grinding wheels 15 in the three groups of hinged plates 14 to adjust synchronously. After the adjustment is completed, the first end face ratchet 20 is released by the finger. At this time, the first end face ratchet 20 that slides radially on the outer wall of the slide cylinder 19 will press against the second end face ratchet 21 under the tension of the return spring 22, and the second end face ratchet 21 is clamped to limit the position, so that the second end face ratchet 21 cannot rotate clockwise, thereby preventing the arc block 17 connected to the connecting buckle 44 from sliding clockwise in the arc groove 16 (refer to Figure 3 ), causing the elastic telescopic rod 18 to pull the first grinding wheel 15 in the hinged plate 14 to rotate in the direction of retraction, so as to ensure the stability of the hinged plate 14 during grinding, and avoid the situation where the pressure applied by the first grinding wheel 15 to the inner wall of the pipe is insufficient, resulting in a decrease in the grinding effect.

[0037] For further information, see Figure 3 , Figure 4 , Figure 5, the two ends of the inner wall of the hinged plate 14 are rotatably connected with synchronous wheels 26 for driving the first grinding wheel 15 to rotate, and the two synchronous wheels 26 are connected by a synchronous belt 27. The center of the support frame 13 is fixedly connected with a double-axis motor 23, and the rotating shafts at both ends of the double-axis motor 23 are fixedly connected with the first gear 24 respectively. The outer wall of the first gear 24 is meshed with three second gears 25, and the second gears 25 are respectively sleeved on the rotating shafts of the synchronous wheels 26 at the corresponding positions. By starting the double-axis motor 23, the first gear 24 is driven to rotate, and the synchronous wheel 26 is driven to rotate by meshing the second gear 25. The transmission relationship between the two synchronous wheels 26 and the synchronous belt 27 is used to facilitate the rotation of the first grinding wheel 15 connected to the synchronous wheel 26, so as to facilitate grinding. By setting the first gear 24 and the synchronous wheel 26 to cooperate with each other in transmission, the first grinding wheel 15 in the hinged plate 14 can still maintain the transmission state when the position changes.

[0038] For further information, see Figure 1 The rotating mechanism includes a first linear motor 3, which is fixedly connected to the top of the workbench 1. The top of the workbench 1 is fixedly connected to a support plate 2 at one end of the first linear motor 3, and the top of the first linear motor 3 is slidably connected to a tailstock 4. The tailstock 4 and the inner wall of the support plate 2 are rotatably connected to a rotating drum 5, and one end corresponding to the two groups of rotating drums 5 is fixedly connected to a three-jaw chuck 6 for clamping the pipeline. The traction line 9 passes through the inside of the rotating drum 5, and the traction line 9 is consistent with the horizontal height of the axis line of the rotating drum 5. The three-jaw chuck 6 can be set to clamp pipelines of different outer diameters within a certain range, and the pipeline is fixed by clamping both ends. The three-jaw chuck 6 on the tailstock 4 is driven to move by the first linear motor 3 to facilitate the adjustment of the distance between the two groups of three-jaw chucks 6, so as to facilitate the clamping of pipelines of different lengths, so as to ensure the stability during pipeline processing.

[0039] Also, see Figure 1 , Figure 6 A third gear 28 is fixedly sleeved on the outer wall of the rotating drum 5 on the support plate 2, and a fourth gear 29 is meshedly connected to the outer wall of the third gear 28. A spindle motor 30 for driving the fourth gear 29 to rotate is fixedly connected to the outer wall of the support plate 2 through a mounting frame 31. The fourth gear 29 is driven to rotate by starting the spindle motor 30, and the rotating drum 5 is driven to rotate by meshing the third gear 28, so that the pipe clamped in the three-jaw chuck 6 connected to the rotating drum 5 will also rotate together, so as to facilitate grinding, and the direction of rotation of the pipe and the first grinding wheel 15 is set to be opposite, which can improve the grinding efficiency.

[0040] In addition, see Figure 6 , Figure 7The outer wall grinding mechanism includes a side table 32, which is fixedly connected to one side of the workbench 1. The top of the side table 32 is fixedly connected to a second linear motor 33, and the top of the second linear motor 33 is slidably connected to a base 34. A slide groove 35 is provided on the top of the base 34, and the inner wall of the slide groove 35 is slidably connected to a slide 36. The top of the slide 36 is rotatably connected to a second grinding wheel 40 through a support rod 39 near the side of the pipe to be polished, and the second grinding wheel 40 is at the same height as the axis of the pipe to be polished. The inner wall of the slide groove 35 is rotatably connected to a threaded rod 37, and the threaded rod 37 is threadedly connected to the inner wall of the slide 36. One end of the threaded rod 37 is fixedly connected to a handwheel 38, and the threaded rod 37 is driven to rotate by pushing the handwheel 38. Since the slide groove 35 limits the rotation of the slide 36, the threaded rod 37 rotates and drives the slide 3 6 slides in the slide groove 35 to facilitate adjustment of the grinding thickness of the second grinding wheel 40 above the slide 36, and the slide 36 on the base 34 is driven by the second linear motor 33 to move, so that the second grinding wheel 40 can follow the slide 36 to grind the pipeline comprehensively. A servo motor 41 is fixedly connected to the top of the slide 36, and a pulley 42 is fixedly connected to the output end shaft of the servo motor 41 and the end corresponding to the second grinding wheel 40, and the two pulleys 42 are connected through a transmission belt 43. The servo motor 41 drives the pulley 42 to rotate, and the transmission relationship between the two pulleys 42 and the transmission belt 43 drives the second grinding wheel 40 connected to the pulley 42 to rotate together, so as to facilitate grinding, and the directions of rotation of the pipeline and the second grinding wheel 40 are set to be opposite, which can improve the grinding efficiency.

[0041] It is worth noting that see Figure 1 , Figure 2 , Figure 7 The base 34 is fixedly connected to the traction line 9 through a linkage rod 10. The linkage rod 10 is provided to connect the base 34 and the traction line 9, so that when the base 34 moves, the traction line 9 will be driven to move together. The two ends of the traction line 9 are connected by threaded matching of the threaded sleeve 11 and the threaded joint 12. The two ends of the traction line 9 are arranged in a threaded matching connection mode of the threaded sleeve 11 and the threaded joint 12, so as to facilitate passing one end of the traction line 9 through the inside of the pipe, and then connecting it by threaded matching of the threaded sleeve 11 and the threaded joint 12.

[0042] How it works

[0043] When in use, the three-jaw chuck 6 fixes the pipeline by clamping both ends of the pipeline, and the three-jaw chuck 6 on the tailstock 4 is driven to move by the first linear motor 3, and the distance between the two groups of three-jaw chucks 6 can be adjusted to facilitate clamping of pipelines of different lengths. One end of the threaded connector 12 on the traction line 9 passes through the rotating drum 5 and the pipeline, and then the threaded connector 12 is threadedly matched with the threaded sleeve 11 to connect, so that the traction line 9 forms an annular sleeve on the outer wall of the guide wheel 8. When it is necessary to adjust the distance between the three groups of first grinding wheels 15 according to the inner diameter of the catheter, the first end face ratchet 20 can be pushed by fingers to slide on the outer wall of the slide cylinder 19 so that the first end face The ratchet 20 is separated from the second end face ratchet 21, and then the second end face ratchet 21 is rotated to make the elastic telescopic rod 18 connected by the three groups of connecting buckles 44 pull the first grinding wheels 15 in the three groups of hinged plates 14 to adjust synchronously. After the adjustment is completed, the first end face ratchet 20 is released by the finger. At this time, the first end face ratchet 20 that slides radially on the outer wall of the slide cylinder 19 will press against the second end face ratchet 21 under the tension of the return spring 22, and the second end face ratchet 21 is clamped to limit the position, so that the second end face ratchet 21 cannot rotate clockwise, thereby preventing the arc block 17 connected by the connecting buckle 44 from sliding clockwise in the arc groove 16 (refer to Figure 3), causing the elastic telescopic rod 18 to pull the first grinding wheel 15 in the hinged plate 14 to rotate in the direction of retraction, so as to ensure the stability of the hinged plate 14 during grinding, and avoid the situation that the pressure applied by the first grinding wheel 15 to the inner wall of the pipe is insufficient, resulting in the problem of reduced grinding effect, by starting the dual-axis motor 23 to facilitate the rotation of the first gear 24, and by engaging the second gear 25 to drive the synchronous wheel 26 to rotate, through the transmission relationship between the two synchronous wheels 26 and the synchronous belt 27, it is convenient to drive the first grinding wheel 15 connected to the synchronous wheel 26 to rotate, and then by starting the spindle motor 30 to drive the fourth gear 29 to rotate, and then by engaging the third gear 28 to drive the rotating drum 5 to rotate, so that the pipe clamped in the three-jaw chuck 6 connected to the rotating drum 5 will also rotate together, so as to facilitate grinding, and the direction of rotation of the pipe and the first grinding wheel 15 is set opposite, which can improve the grinding efficiency, and then start the servo motor 41 to drive the pulley 42 to rotate, and through the transmission relationship between the two pulleys 42 and the transmission belt 43, drive the second grinding wheel 40 connected to the pulley 42 to rotate together, so as to facilitate grinding. The grinding process is convenient, and the pipe and the second grinding wheel 40 are set to rotate in opposite directions, which can improve the grinding efficiency. The threaded rod 37 is driven to rotate by pushing the hand wheel 38. Since the slide groove 35 limits the rotation of the slide 36, the threaded rod 37 rotates to drive the slide 36 to slide in the slide groove 35, so as to facilitate the adjustment of the grinding thickness of the second grinding wheel 40 above the slide 36. The slide 36 on the base 34 is driven by the second linear motor 33 to move, so that the second grinding wheel 40 can follow the slide 36 to grind the pipe. Comprehensive grinding, because the base 34 is connected to the traction line 9 through the linkage rod 10, when the base 34 moves, it will drive the traction line 9 to move together, thereby driving the first grinding wheel 15 to move on the inner wall of the pipe, so as to facilitate comprehensive grinding, and the elastic telescopic rod 18 is used as the support method of the first grinding wheel 15 of the hinged plate 14. When grinding the pipe with poor inner wall flatness, since the elastic telescopic rod 18 has the elasticity of movement, the first grinding wheel 15 has a certain displacement space during grinding, thereby avoiding getting stuck on the inner wall of the pipe.

[0044] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A mobile stainless steel prefabricated pipe automatic polishing equipment, characterized in that: It comprises a workbench (1), wherein a rotating mechanism is arranged on the top of the workbench (1) for driving the pipeline to rotate; The top of the workbench (1) is provided with an inner wall grinding mechanism for grinding the inner wall of the pipe; An outer wall grinding mechanism is provided on the top of the workbench (1) for grinding the outer wall of the pipe; The inner wall grinding mechanism comprises two groups of brackets (7), the two groups of brackets (7) are respectively fixedly connected to the two ends of the workbench (1), and the two ends of the top of the brackets (7) are rotatably connected to guide wheels (8), and the guide wheels (8) are all arranged in a horizontal shape, and traction lines (9) are sleeved on the outer walls of the four groups of guide wheels (8), and a grinding assembly is arranged on the traction lines (9), and the grinding assembly comprises a support frame (13), the support frame (13) is fixedly connected to the traction lines (9), the two ends of the inner wall of the support frame (13) are hinged with three hinged plates (14), and a first grinding wheel (15) is rotatably connected between two hinged plates (14) at corresponding positions, and the surfaces of the two ends of the support frame (13) are provided with three arc grooves (16), and the inner wall of the arc groove (16) is slidably provided with an arc groove (16). The arc block (17) has an outer wall hinged with an elastic telescopic rod (18), and one end of the elastic telescopic rod (18) away from the arc block (17) is hinged with the hinge plate (14), and the surfaces of both ends of the support frame (13) are fixedly connected with slide cylinders (19), and the outer wall of the slide cylinder (19) is radially slid with a first end face ratchet (20), and the outer wall of the slide cylinder (19) is movably sleeved with a return spring (22) at a position between the first end face ratchet (20) and the end face of the support frame (13), and the end face of the first end face ratchet (20) is meshedly connected with a second end face ratchet (21), and the outer wall of the second end face ratchet (21) is fixedly connected with three groups of connecting buckles (44), and the three groups of connecting buckles (44) are respectively hinged with the elastic telescopic rods (18) at corresponding positions.

2. According to claim 1, a mobile stainless steel prefabricated pipeline automatic polishing device is characterized by: The two ends of the inner wall of the hinged plate (14) are rotatably connected to synchronous wheels (26) for driving the first grinding wheel (15) to rotate, and the two synchronous wheels (26) are connected to each other by a synchronous belt (27). A dual-axis motor (23) is fixedly connected to the center of the support frame (13), and the rotating shafts at the two ends of the dual-axis motor (23) are fixedly connected to first gears (24), and the outer wall of the first gear (24) is meshingly connected to three second gears (25), and the second gears (25) are respectively sleeved on the rotating shafts of the synchronous wheels (26) at corresponding positions.

3. According to claim 1, a mobile stainless steel prefabricated pipeline automatic polishing device is characterized by: The rotating mechanism comprises a first linear motor (3), the first linear motor (3) is fixedly connected to the top of the workbench (1), the top of the workbench (1) is fixedly connected to a support plate (2) at one end of the first linear motor (3), the top of the first linear motor (3) is slidably connected to a tailstock (4), the tailstock (4) and the inner wall of the support plate (2) are rotatably connected to a rotating cylinder (5), and one end of the two sets of rotating cylinders (5) is fixedly connected to a three-jaw chuck (6) for clamping the pipe, the traction line (9) passes through the inside of the rotating cylinder (5), and the traction line (9) is at the same level as the axis of the rotating cylinder (5).

4. The mobile stainless steel prefabricated pipe automatic polishing equipment according to claim 3 is characterized by: A third gear (28) is fixedly sleeved on the outer wall of the rotating drum (5) on the support plate (2), a fourth gear (29) is meshingly connected to the outer wall of the third gear (28), and a spindle motor (30) for driving the fourth gear (29) to rotate is fixedly connected to the outer wall of the support plate (2) via a mounting frame (31).

5. The mobile stainless steel prefabricated pipe automatic polishing equipment according to claim 1 is characterized by: The outer wall grinding mechanism comprises a side table (32), wherein the side table (32) is fixedly connected to one side of the workbench (1), a second linear motor (33) is fixedly connected to the top of the side table (32), a base (34) is slidably connected to the top of the second linear motor (33), a slide groove (35) is provided on the top of the base (34), a slide table (36) is slidably connected to the inner wall of the slide groove (35), a second grinding wheel (40) is rotatably connected to the top of the slide table (36) near the side of the pipe to be polished through a support rod (39), and the second grinding wheel (40) is at the same level as the axis of the pipe to be polished, a threaded rod (37) is rotatably connected to the inner wall of the slide groove (35), and the threaded rod (37) is threadedly connected to the inner wall of the slide table (36), and one end of the threaded rod (37) is fixedly connected to a hand wheel (38).

6. The mobile stainless steel prefabricated pipe automatic polishing equipment according to claim 5 is characterized by: A servo motor (41) is fixedly connected to the top of the slide (36), a pulley (42) is fixedly connected to the output end rotation shaft of the servo motor (41) and one end corresponding to the second grinding wheel (40), and the two pulleys (42) are connected in transmission via a transmission belt (43).

7. The mobile stainless steel prefabricated pipe automatic polishing equipment according to claim 5 is characterized by: The base (34) is fixedly connected to the traction line (9) via a linkage rod (10), and both ends of the traction line (9) are connected via threaded engagement of a threaded sleeve (11) and a threaded joint (12).

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