A stainless steel pipe cutting and polishing mechanism and a welding device comprising the same

Abstract

The present application relates to the technical field of polishing equipment, in particular to a stainless steel pipe cut polishing mechanism and a welding device containing the same, which comprises a reinforcing table and a pipe placed on the reinforcing table, further comprises a multi-angle polishing assembly, which comprises two second sliding frames slidingly installed on the reinforcing table, two polishing boxes are installed on the two second sliding frames, two first polishing rollers are symmetrically installed in the two polishing boxes, and a second polishing roller is rotatably installed in the polishing box; a reinforcing cleaning assembly, which comprises a disc movably connected with the second sliding frame, and a plurality of shielding plates are slidingly installed on the disc. The multi-angle polishing assembly is adopted, the first polishing roller is transversely polished, the second polishing roller is longitudinally polished, and the vertical cooperation can polish the inner side, the outer side and the edge of the pipe cut at the same time, the polishing angle and position need not to be frequently adjusted by the operator, the polishing time is greatly shortened, the large-scale production demand is adapted, and the manual labor intensity is reduced.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, specifically to a stainless steel pipe cutting and grinding mechanism and a welding device containing the mechanism. Background Technology

[0002] Stainless steel pipes, with their advantages of corrosion resistance, high strength, and long service life, are widely used in various fields such as construction, chemical industry, municipal water supply and drainage, and machinery manufacturing. In the practical application of stainless steel pipes, cutting is an essential process. However, the cut edges will produce burrs and flash, and the surface will be rough and uneven. If not ground, this will seriously affect the subsequent welding quality, leading to defects such as slag inclusions and porosity in the weld. It may also injure operators and reduce the overall product qualification rate.

[0003] Currently, the industry commonly uses a unidirectional grinding method for polishing the cut edges of stainless steel pipes. This method requires separate grinding of the inner ring, outer ring, and edge of the cut edge. Operators must frequently adjust the grinding angle and position to complete the grinding of different parts sequentially. This is not only cumbersome but also results in inconsistent grinding between parts, leading to low grinding efficiency. Furthermore, unidirectional grinding relies heavily on the operator's skill level, which can easily lead to uneven grinding and dimensional deviations, further increasing subsequent rework costs. This makes it difficult to meet the dual demands of efficiency and quality required for large-scale stainless steel pipe production. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a stainless steel pipe cutting and grinding mechanism and a welding device containing the mechanism, which can effectively solve the problems of the prior art.....

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a stainless steel pipe cutting and grinding mechanism, including a reinforcing table and a pipe fitting placed on the reinforcing table, characterized in that it further includes: A multi-angle grinding assembly includes two second sliding frames slidably mounted on a reinforcing platform. Each of the two second sliding frames is equipped with a grinding box. Each of the two grinding boxes is symmetrically equipped with two first grinding rollers. The two first grinding rollers are located on the inner and outer sides of the pipe respectively. A second grinding roller is rotatably mounted in the grinding box, and the rotation directions of the first grinding roller and the second grinding roller are perpendicular to each other. The reinforced cleaning assembly includes a disc movably connected to a second sliding frame. Multiple baffles are slidably mounted on the disc, and each baffle has multiple air vents. When airflow exits from the air vents, the two first grinding rollers move closer to each other. Furthermore, two first sliding frames slide on the reinforcement platform, each first sliding frame is equipped with a positioning ring, each positioning ring has a positioning groove, and a positioning block is slidably installed on the positioning groove. The pipe is placed between the two positioning rings, and the positioning block slides along the positioning groove and presses against the outer wall of the pipe.

[0006] Furthermore, a rotating ring is rotatably installed in the positioning ring, and the positioning block is slidably connected to the rotating ring, with the sliding direction facing the center of the positioning ring. By rotating the rotating ring, multiple positioning blocks are driven to slide along the positioning groove, thereby changing the distance between the positioning block and the pipe.

[0007] Furthermore, a first rotating shaft is fixedly connected to the end of the first grinding roller, and a third rotating shaft is fixedly connected to both ends of the second grinding roller. An adjustable transmission component is provided in the grinding box, which drives the first rotating shaft and the third rotating shaft to rotate synchronously.

[0008] Furthermore, the adjustable transmission component includes a second rotating shaft rotatably mounted in the grinding box, two transmission boxes slidably mounted on the second rotating shaft, and two first rotating shafts rotatably passing through the two second rotating shafts in a one-to-one correspondence. A first gear is fixedly mounted at one end of each of the two first rotating shafts located in the second rotating shaft. A sliding sleeve is slidably mounted on the second rotating shaft, and a second gear is fixedly mounted on each sliding sleeve. The sliding sleeve is rotatably connected to the inner wall of the transmission box.

[0009] Furthermore, a transmission belt is provided between the second and third rotating shafts, and a motor for driving the third rotating shaft to rotate is provided on the outer wall of the grinding box.

[0010] Furthermore, a slider is fixedly installed on the grinding box, and a groove adapted to the slider is opened on the second sliding frame. A fourth piston tube is installed at both ends of the groove. A fourth piston rod is movably inserted at the close end of the two fourth piston tubes. The two fourth piston rods and the two sliders are fixedly connected in a one-to-one correspondence. An inflation component is connected to the outside of the fourth piston tube.

[0011] Furthermore, two first piston tubes are symmetrically fixedly installed in the grinding box. A first piston rod is movably inserted into one end of each of the two first piston tubes. The ends of the two first piston rods are fixedly connected to the two transmission boxes one by one. A first connecting pipe is connected between the two first piston tubes, and a second connecting pipe is connected between the first connecting pipe and the fourth piston tube.

[0012] Furthermore, the reinforcement and cleaning assembly also includes a second piston tube installed on the second sliding frame, and the second piston tube is located between the two grinding boxes. A second piston rod is movably inserted into the side of the second piston tube away from the second sliding frame. The disc is fixedly installed at the end of the second piston rod. Multiple third piston tubes are fixed on the second piston rod, and the third piston tubes are distributed in a ring. A third piston rod is movably inserted into each of the third piston tubes. Multiple baffles are fixedly connected to the ends of multiple third piston rods one by one.

[0013] Furthermore, a recycling box is provided on the reinforcement platform, a fan is fixed on the second sliding frame, an air inlet pipe is connected between the fan and the recycling box, an air outlet pipe is connected between the fan and the second piston tube, a third connecting pipe is connected between the second piston rod and the third piston tube, both the second piston rod and the third piston rod are hollow tubes, and the combined diameter of the second piston rod and the third piston rod is smaller than the diameter of the air outlet pipe.

[0014] Furthermore, a drive frame is fixedly installed on the reinforcement platform, a drive roller is rotatably installed on the drive frame, and the drive roller is in full contact with the pipe. A drive component for driving the drive roller to rotate is installed on the drive frame.

[0015] A welding apparatus employing the aforementioned stainless steel pipe cutting and grinding mechanism.

[0016] The technical solution provided by this invention has the following advantages compared with the known prior art: 1. Improve grinding efficiency and reduce manual operation: By adopting a multi-angle grinding component, the inner, outer and edge of the pipe fitting cut can be ground simultaneously through the vertical cooperation of the first grinding roller for horizontal grinding and the second grinding roller for vertical grinding. There is no need for operators to frequently adjust the grinding angle and position, which solves the problems of cumbersome process and low efficiency of the existing unidirectional grinding method, greatly shortens the grinding time, adapts to the needs of large-scale production, and reduces the intensity of manual labor.

[0017] 2. Ensure grinding precision and improve product quality: Through the cooperation of positioning ring, rotating ring and positioning block, pipes of different specifications can be accurately positioned to avoid displacement of pipes during grinding; the adjustable transmission component can flexibly adjust the speed of grinding roller to adapt to the grinding needs of stainless steel pipes of different thicknesses and materials, ensuring uniform grinding of cuts, no burrs and no dimensional deviations, effectively improving the subsequent welding quality, reducing weld defects and increasing product qualification rate.

[0018] 3. Achieve dust recovery and protect the working environment: The reinforced cleaning components work in conjunction with the fan and the recovery box. The baffle can block the grinding dust. The airflow from the vent blows the dust up and then the fan sucks it into the recovery box for filtration and collection, preventing dust from leaking out and polluting the working environment. At the same time, it prevents the dust from being inhaled by the operators, protecting their health and meeting environmental protection production requirements.

[0019] 4. Strong structural self-adaptability and wide range of applications: The position of the grinding box, transmission box and baffle can be flexibly adjusted through the cooperation of the piston tube and piston rod to adapt to the grinding of stainless steel pipes of different lengths and diameters; the positioning block can adjust the spacing through the rotating ring to further expand the range of applications, eliminating the need to equip special grinding equipment for pipes of different specifications and reducing production costs.

[0020] 5. High degree of integration, improving production continuity: The welding device containing this grinding mechanism integrates the grinding and welding processes. Welding can be carried out directly after grinding without transferring the pipes, reducing the time spent on process connection, avoiding damage or displacement of pipes during the transfer process, further improving production efficiency and product consistency, and reducing production energy consumption and rework costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a structural schematic diagram of the adaptive grinding component. Figure 4 This is a schematic diagram of the structure of the first and second grinding rollers. Figure 5 This is a structural schematic diagram of the adjustable transmission component. Figure 6 for Figure 3 Partial top view; Figure 7 This is a structural schematic diagram of the airflow shielding component. Figure 8 for Figure 7 Enlarged view of the structure of part A in the middle.

[0023] The labels in the diagram represent: 1. Reinforcing platform; 2. First sliding frame; 3. Positioning ring; 4. Rotating ring; 5. Positioning block; 6. Positioning groove; 7. Pipe fitting; 8. Second sliding frame; 9. Grinding box; 10. First grinding roller; 11. Second grinding roller; 12. Transmission box; 13. First rotating shaft; 14. Second rotating shaft; 15. First gear; 16. Second gear; 17. Transmission belt; 18. Motor; 19. First piston tube; 20. First piston rod; 21. First connecting pipe; 22. Second piston tube; 23. Second piston rod; 24. Third piston tube; 25. Third piston rod; 26. Baffle plate; 27. Air outlet; 28. Recycling box; 29. ​​Fan; 30. Air outlet pipe; 31. Fourth piston tube; 32. Fourth piston rod; 33. Second connecting pipe; 34. Third connecting pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] The present invention will be further described below with reference to embodiments.

[0026] Example 1:

[0027] refer to Figure 1 A stainless steel pipe cutting and grinding mechanism includes a reinforcing platform 1 and a pipe fitting 7 placed on the reinforcing platform 1. Two first sliding frames 2 slide on the reinforcing platform 1, and each of the two first sliding frames 2 is equipped with a positioning ring 3. Each of the two positioning rings 3 has a positioning groove 6, and a positioning block 5 is slidably installed on the positioning groove 6. The pipe fitting 7 is placed between the two positioning rings 3. The positioning block 5 slides along the positioning groove 6 and presses against the outer wall of the pipe fitting 7. A rotating ring 4 is rotatably installed in the positioning ring 3. The positioning block 5 is slidably connected to the rotating ring 4, and the sliding direction is towards the center of the positioning ring 3. By rotating the rotating ring 4, multiple positioning blocks 5 are driven to slide along the positioning groove 6, changing the distance between the positioning block 5 and the pipe fitting 7. A drive frame is fixedly installed on the reinforcing platform 1. A drive roller is rotatably installed on the drive frame, and the drive roller is in full contact with the pipe fitting 7. A drive component for driving the drive roller to rotate is installed on the drive frame.

[0028] First, turn on the main power supply of the device and check the sealing of the fan 29, motor 18, air filling components and the first piston tube 19, second piston tube 22, third piston tube 24 and fourth piston tube 31 to ensure there is no air leakage or jamming. Check the surface flatness of the first grinding roller 10 and the second grinding roller 11, confirm the contact state between the drive roller and the tube 7, and ensure that the transmission belt 17 and gear set of each transmission component operate smoothly.

[0029] Then, according to the diameter of the stainless steel pipe to be polished, rotate the rotating ring 4 on the two positioning rings 3 to drive the positioning block 5 to slide along the positioning groove 6 towards the center of the positioning ring 3 until the clamping space formed by the multiple positioning blocks 5 matches the diameter of the pipe 7; place the pipe 7 stably between the two positioning rings 3, and fine-tune the rotating ring 4 again to make the positioning block 5 tightly press against the outer wall of the pipe 7, so as to achieve accurate positioning of the pipe 7 and prevent displacement during the polishing process.

[0030] refer to Figures 2-4 To improve the grinding effect and efficiency, a multi-angle grinding assembly is set up, including two second sliding frames 8 that are slidably installed on the reinforcing platform 1. Each of the two second sliding frames 8 is equipped with a grinding box 9. Each of the two grinding boxes 9 is symmetrically equipped with two first grinding rollers 10. The two first grinding rollers 10 are located on the inner and outer sides of the pipe 7, respectively. A second grinding roller 11 is rotatably installed in the grinding box 9, and the rotation directions of the first grinding roller 10 and the second grinding roller 11 are perpendicular to each other.

[0031] Start motor 18, which drives the third rotating shaft to rotate. The third rotating shaft drives the second rotating shaft 14 to rotate synchronously via transmission belt 17. The sliding sleeve on the second rotating shaft 14 rotates with the second rotating shaft 14, which drives the second gear 16 to rotate. The second gear 16 meshes with the first gear 15 on the first rotating shaft 13, thereby driving the first rotating shaft 13 to drive the first grinding roller 10 to rotate, so as to realize the synchronous rotation of the first grinding roller 10 in the lateral direction and the second grinding roller 11 in the longitudinal direction, and the two rotation directions are perpendicular to each other.

[0032] Start the drive unit on the drive frame to drive the drive roller to rotate. The drive roller drives the pipe 7 to rotate slowly and uniformly at a speed of about 10 r / min. At this time, the first grinding roller 10 in the two grinding boxes grinds the inner and outer sides of the cut of the pipe 7 laterally to remove burrs and flash from the inner and outer rings of the cut. At the same time, the second grinding roller 11 grinds the edge of the cut longitudinally to make the edge of the cut flat and smooth, realizing the synchronous grinding of the inner ring, outer ring and edge, without the need for the operator to adjust the grinding angle and position.

[0033] Example 2:

[0034] refer to Figure 3 and Figure 7The system also includes a reinforced cleaning assembly, comprising a disc movably connected to the second sliding frame 8. Multiple baffles 26 are slidably mounted on the disc, each baffle 26 having multiple air vents 27. When airflow exits from the air vents 27, the two first grinding rollers 10 approach each other. A first rotating shaft 13 is fixedly connected to the end of each first grinding roller 10, and a third rotating shaft is fixedly connected to both ends of each second grinding roller 11. An adjustable transmission component is provided in the grinding box 9, which drives the first rotating shaft 13 and the third rotating shaft to rotate synchronously. The adjustable transmission component includes a rotating grinding... The second rotating shaft 14 in the housing 9 has two transmission housings 12 slidably mounted on it, and two first rotating shafts 13 rotatably pass through the two second rotating shafts 14 in a one-to-one correspondence. A first gear 15 is fixedly mounted at one end of each of the two first rotating shafts 13 located in the second rotating shaft 14. A sliding sleeve is slidably mounted on the second rotating shaft 14, and a second gear 16 is fixedly mounted on each sliding sleeve. The sliding sleeve is rotatably connected to the inner wall of the transmission housing 12. A transmission belt 17 is provided between the second rotating shaft 14 and the third rotating shaft. A motor 18 for driving the third rotating shaft is provided on the outer wall of the grinding housing 9.

[0035] like Figure 7 As shown, the reinforced cleaning assembly also includes a second piston tube 22 mounted on the second sliding frame 8, and the second piston tube 22 is located between the two grinding boxes 9. A second piston rod 23 is movably inserted into the side of the second piston tube 22 away from the second sliding frame 8. A disc is fixedly mounted on the end of the second piston rod 23. Multiple third piston tubes 24 are fixed on the second piston rod 23, and the third piston tubes 24 are arranged in a ring. A third piston rod 25 is movably inserted into each third piston tube 24. Multiple baffles 26 and multiple third piston rods 25 are also present. The ends of the three piston rods 25 are fixedly connected one to one. A recycling box 28 is provided on the reinforcement platform 1. A fan 29 is fixed on the second sliding frame 8. An air inlet pipe is connected between the fan 29 and the recycling box 28. An air outlet pipe 30 is connected between the fan 29 and the second piston tube 22. A third connecting pipe 34 is connected between the second piston rod 23 and the third piston tube 24. The second piston rod 23 and the third piston rod 25 are both hollow tubes, and the diameter of the second piston rod 23 and the third piston rod 25 is smaller than the diameter of the air outlet pipe 30.

[0036] When the blower 29 is started, the airflow generated by the blower 29 enters the second piston tube 22 through the air outlet 30, pushing the second piston rod 23 to move the disc toward the pipe 7 until the baffle plate 26 surrounds the outside of the cut of the pipe 7; at the same time, the airflow enters the third piston tube 24 through the third connecting pipe 34, pushing the third piston rod 25 to move the baffle plate 26 toward the pipe 7, so that the baffle plate 26 fits against the outer wall of the pipe 7, forming a closed grinding space to ensure that dust does not leak out.

[0037] Dust generated during the grinding process is blocked by the baffle plate 26 to prevent leakage; the air outlet 27 on the baffle plate 26 continuously blows out airflow provided by the fan 29, blowing up the dust attached to the cut surface and the inner wall of the pipe 7; the fan 29 sucks the blown dust into the recovery box 28 through the air inlet pipe, realizing the centralized collection of dust, ensuring a clean working environment, and preventing dust from being inhaled by the operator.

[0038] Example 3:

[0039] refer to Figure 6 A slider is fixedly installed on the grinding box 9, and a groove adapted to the slider is opened on the second sliding frame 8. A fourth piston tube 31 is installed at both ends of the groove. A fourth piston rod 32 is movably inserted into the near end of the two fourth piston tubes 31. The two fourth piston rods 32 and the two sliders are fixedly connected one-to-one. An air inflator is connected to the outside of the fourth piston tube 31. Two first piston tubes 19 are symmetrically fixedly installed in the grinding box 9. A first piston rod 20 is movably inserted into the near end of the two first piston tubes 19. The ends of the two first piston rods 20 are fixedly connected one-to-one to the two transmission boxes 12. A first connecting pipe 21 is connected between the two first piston tubes 19. A second connecting pipe 33 is connected between the first connecting pipe 21 and the fourth piston tube 31.

[0040] Inflation is introduced into the fourth piston tube 31 via an inflation device, which pushes the fourth piston rod 32 to drive the slider to slide along the groove of the second sliding frame 8, thereby adjusting the distance between the two grinding boxes 9 so that the two grinding boxes 9 are aligned with the two ends of the cut of the tube 7. At the same time, the airflow in the fourth piston tube 31 enters the first connecting pipe 21 through the second connecting pipe 33, and then splits to the two first piston tubes 19, pushing the first piston rod 20 to drive the transmission box 12 to slide, so that the two first grinding rollers 10 respectively fit the inner and outer sides of the cut of the tube 7, and the second grinding roller 11 fits the edge of the cut, thus completing the alignment of the grinding rollers.

[0041] If insufficient grinding is found in a certain part of the cut during the grinding process, the air volume of the fourth piston tube 31 can be adjusted by the air inflator, and the position of the grinding box 9 can be finely adjusted to make the grinding roller fit more tightly with the cut. At the same time, the grinding speed can be adjusted by the adjustable transmission component. The sliding transmission box 12 drives the sliding sleeve to move along the second rotating shaft 14, changing the meshing depth between the second gear 16 and the first gear 15, thereby adjusting the rotation speed of the first grinding roller 10 to adapt to the grinding needs of different parts and ensure uniform grinding without dimensional deviation.

[0042] It is worth noting that different specifications of pipe fittings are compatible: when grinding stainless steel pipes of different diameters of 30-100mm, simply rotate the rotating ring 4 to adjust the spacing of the positioning blocks 5, and at the same time adjust the air volume of each piston pipe through the air inflator to change the position of the grinding box 9 and the baffle plate 26, so as to achieve precise positioning and grinding without the need to replace special equipment.

[0043] A welding apparatus employing the aforementioned stainless steel pipe cutting and grinding mechanism.

[0044] The second sliding frame 8 can be slid out of the processing table 1, and the polished pipe 7 can be left directly in the positioning ring 3 without transfer, avoiding damage or displacement of the pipe during the transfer process and saving process connection time.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stainless steel pipe cutting and grinding mechanism, comprising a reinforcing table and pipe fittings placed on the reinforcing table, characterized in that, Also includes: A multi-angle grinding assembly includes two second sliding frames slidably mounted on a reinforcing platform. Each of the two second sliding frames is equipped with a grinding box. Each of the two grinding boxes is symmetrically equipped with two first grinding rollers. The two first grinding rollers are located on the inner and outer sides of the pipe respectively. A second grinding roller is rotatably mounted in the grinding box, and the rotation directions of the first grinding roller and the second grinding roller are perpendicular to each other. The reinforced cleaning assembly includes a disc movably connected to a second sliding frame. Multiple baffles are slidably mounted on the disc. Each baffle has multiple air vents. When airflow flows out of the air vents, the two first grinding rollers move closer to each other.

2. The stainless steel pipe cutting and grinding mechanism according to claim 1, characterized in that, The reinforcement platform has two first sliding frames that slide on each of the two first sliding frames. Each of the two first sliding frames is equipped with a positioning ring. Each of the two positioning rings has a positioning groove. A positioning block is slidably installed on the positioning groove. The pipe is placed between the two positioning rings. The positioning block slides along the positioning groove and presses against the outer wall of the pipe.

3. The stainless steel pipe cutting and grinding mechanism according to claim 2, characterized in that, A rotating ring is rotatably installed in the positioning ring, and the positioning block is slidably connected to the rotating ring with the sliding direction facing the center of the positioning ring. By rotating the rotating ring, multiple positioning blocks are driven to slide along the positioning groove, thereby changing the distance between the positioning block and the pipe.

4. The stainless steel pipe cutting and grinding mechanism according to claim 1, characterized in that, The first grinding roller is fixedly connected to a first rotating shaft at its end, and the two ends of the second grinding roller are fixedly connected to a third rotating shaft. The grinding box is provided with an adjustable transmission component, which drives the first rotating shaft and the third rotating shaft to rotate synchronously.

5. A stainless steel pipe cutting and grinding mechanism according to claim 4, characterized in that, The adjustable transmission component includes a second rotating shaft rotatably mounted in the grinding box. Two transmission boxes are slidably mounted on the second rotating shaft, and the two first rotating shafts rotatably pass through the two second rotating shafts in a one-to-one correspondence. A first gear is fixedly mounted at one end of each of the two first rotating shafts located in the second rotating shaft. A sliding sleeve is slidably mounted on the second rotating shaft, and a second gear is fixedly mounted on each sliding sleeve. The sliding sleeve is rotatably connected to the inner wall of the transmission box.

6. The stainless steel pipe cutting and grinding mechanism according to claim 1, characterized in that, A transmission belt is provided between the second and third rotating shafts, and a motor for driving the third rotating shaft is provided on the outer wall of the grinding box.

7. A stainless steel pipe cutting and grinding mechanism according to claim 1, characterized in that, A slider is fixedly installed on the grinding box, and a groove adapted to the slider is opened on the second sliding frame. A fourth piston tube is installed at both ends of the groove. A fourth piston rod is movably inserted at the close end of the two fourth piston tubes. The two fourth piston rods and the two sliders are fixedly connected in a one-to-one correspondence. An inflation component is connected to the outside of the fourth piston tube.

8. A stainless steel pipe cutting and grinding mechanism according to claim 7, characterized in that, The grinding box contains two first piston tubes that are symmetrically fixedly installed. Each of the two first piston tubes has a first piston rod inserted into one of its adjacent ends. The ends of the two first piston rods are fixedly connected to the two transmission boxes one by one. A first connecting pipe connects the two first piston tubes, and a second connecting pipe connects the first connecting pipe and the fourth piston tube.

9. A stainless steel pipe cutting and grinding mechanism according to claim 1, characterized in that, The reinforced cleaning assembly also includes a second piston tube installed on the second sliding frame, and the second piston tube is located between two grinding boxes. A second piston rod is movably inserted into the side of the second piston tube away from the second sliding frame. The disc is fixedly installed at the end of the second piston rod. Multiple third piston tubes are fixed on the second piston rod, and the third piston tubes are distributed in a ring. A third piston rod is movably inserted into each of the third piston tubes. Multiple baffles are fixedly connected to the ends of multiple third piston rods one by one.

10. A stainless steel pipe cutting and grinding mechanism according to claim 9, characterized in that, A recycling bin is provided on the reinforcement platform, a fan is fixed on the second sliding frame, an air inlet pipe is connected between the fan and the recycling bin, an air outlet pipe is connected between the fan and the second piston tube, a third connecting pipe is connected between the second piston rod and the third piston tube, the second piston rod and the third piston rod are both hollow tubes, and the diameter of the second piston rod and the third piston rod is smaller than the diameter of the air outlet pipe.

11. A stainless steel pipe cutting and grinding mechanism according to claim 1, characterized in that, A drive frame is fixedly installed on the reinforcement platform, and a drive roller is rotatably installed on the drive frame, with the drive roller in full contact with the pipe. A drive component for driving the drive roller to rotate is installed on the drive frame.

12. A welding apparatus employing a stainless steel pipe cutting and grinding mechanism as described in any one of claims 1-11.

Images