Stainless steel pipe polishing device

Abstract

The invention relates to the technical field of steel pipe grinding, in particular to a stainless steel pipe polishing device which comprises a grinding table, an extrusion wheel, a feeding table and a driving wheel and further comprises a mounting shaft set and a plurality of sets of symmetrically-arranged rotating shafts, each set comprises two parallel rotating shafts, and the rotating shafts rotate on the two sides of the feeding table; the moving bin is arranged on the rotating shaft; the motor is connected with the driving wheel; the supporting plate is installed on the feeding table and used for bearing the steel pipe in the polishing process, and the supporting plate is in an arc shape; and the steel pipe driving unit is arranged on the feeding table, connected with the rotating shaft and the driving wheel and used for driving the driving wheel to be lifted when the driving wheel pushes the steel pipe to move, and when the stainless steel pipe polishing device is used, due to the design of the deviation limiting unit, the driving wheel can be used for conveying the steel pipe for polishing; and meanwhile, the tail end of the long steel pipe can be fixed in the polishing process, the phenomenon that the tail end of the steel pipe shakes in the polishing process is avoided, and the polishing precision of a welding point is reduced due to shaking.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe grinding, and specifically to a stainless steel pipe polishing device. Background Art

[0002] Steel pipe grinding refers to a process of finely processing the surface of a steel pipe. It aims to remove burrs, oxide layers, rust, welding slag, uneven parts, and other impurities on the surface of the steel pipe through physical or mechanical means to meet specific surface roughness, smoothness, or dimensional accuracy requirements. This process not only concerns the appearance quality of the steel pipe but also directly affects its subsequent processing performance, service life, and safety. During the steel pipe grinding process, various tools such as grinding wheels, abrasive belts, wire brushes, and grinding discs are usually used, combined with manual or automated equipment for operation. According to the different materials, specifications, uses, and surface conditions of the steel pipe, the grinding process will also vary, including multiple steps such as rough grinding, fine grinding, and polishing. Rough grinding is mainly used to quickly remove a large amount of material, fine grinding further refines the surface, and polishing is to obtain an extremely high surface smoothness.

[0003] However, the above-mentioned device has obvious problems during actual use. Due to the difference in the length of the steel pipe, when the length of the steel pipe exceeds the length of the pressing wheel, during the grinding process, the unfixed end of the steel pipe lacks effective restraint and support, and is extremely prone to shaking. This shaking will not only greatly reduce the grinding accuracy of the welding point, resulting in problems such as uneven surface roughness after grinding and incomplete removal of the weld reinforcement, affecting the overall appearance quality and subsequent use performance of the steel pipe. Therefore, we propose a stainless steel pipe polishing device. Summary of the Invention

[0004] One technical problem to be solved by this application is that when the length of the steel pipe exceeds the length of the pressing wheel, during the grinding process, the unfixed end of the steel pipe lacks effective restraint and support, and is extremely prone to shaking. This shaking will not only greatly reduce the grinding accuracy of the welding point, resulting in problems such as uneven surface roughness after grinding and incomplete removal of the weld reinforcement, affecting the overall appearance quality and subsequent use performance of the steel pipe.

[0005] To solve the above technical problem, an embodiment of this application provides a stainless steel pipe polishing device, including a grinding table, a pressing wheel, a loading table, and a driving wheel, and further includes:

[0006] An installation shaft group, including multiple groups of symmetrically arranged rotating shafts, each group containing two parallel rotating shafts, and the rotating shafts rotate on both sides of the loading table;

[0007] A moving bin, arranged on the rotating shaft; connected to the driving wheel;

[0008] A support plate, installed on the loading table, used to carry the steel pipe during grinding, and the support plate is arc-shaped;

[0009] A steel pipe driving unit is arranged on the loading table and is connected to the rotating shaft and the driving wheel, and is used to drive the driving wheel to lift when the driving wheel pushes the steel pipe to move;

[0010] An offset limiting unit is arranged on the loading table and is connected to the moving bin and the support plate, and is used to drive a group of driving wheels to deflect during the grinding of the steel pipe, and move in opposite directions while deflecting, so that the steel pipe clamped by the driving wheels drops onto the support plate due to an increase in the gap, and then controls the driving wheels to reset.

[0011] In some embodiments, the steel pipe driving unit includes a lifting member arranged on the loading table, and the lifting member is used to drive the driving wheel to rise. A driving member is arranged on the lifting member, and the driving member is used to drive the lifting member to work.

[0012] In some embodiments, the lifting member includes a power bin opened on the loading table. The power bin is rotatably connected to the rotating shaft. A hydraulic bin is opened in the rotating shaft. A piston plate is slidably arranged in the hydraulic bin. A sliding rod slidably connected to the rotating shaft is arranged on the piston plate. A pressure spring is sleeved on one end of the sliding rod located in the hydraulic bin. Liquid guide pipes communicating with each other are arranged on a plurality of the hydraulic bins. A hydraulic pump is arranged in the power bin, and the hydraulic pump is communicated with the liquid guide pipes.

[0013] In some embodiments, the driving member includes a connecting block arranged on the sliding rod. The connecting block is connected to the moving bin. A sliding block is slidably arranged in the moving bin. A mounting seat rotatably connected to the driving wheel is arranged on the sliding block, and the mounting seat is slidably connected to the moving bin.

[0014] In some embodiments, the offset limiting unit includes a rotating member arranged on the rotating shaft, and the rotating member is used to control the deflection of the driving wheel. A moving member is arranged on the moving bin, and the moving member is used to drive two mutually parallel driving wheels to move in opposite directions. A power member is arranged on the loading table, and the power member is used to provide power for the operation of the moving member. A supporting member is arranged on the loading table, and the supporting member is used to carry the steel pipe during the grinding process.

[0015] In some embodiments, the rotating member includes a sector plate arranged on the rotating shaft, and the sector plate is located at one end of the rotating shaft in the power bin. Rotating teeth engaging with each other are arranged on a plurality of the sector plates. A transmission worm wheel is arranged on one end of the rotating shaft in the power bin. A transmission worm engaging with the transmission worm wheel is rotatably arranged in the power bin. A power motor is arranged in the power bin, and the power output end of the power motor is connected to the transmission worm.

[0016] In some embodiments, the moving member includes a partition plate disposed in the moving bin. A return spring is disposed on the partition plate. One end of the return spring is connected to a sliding block. A rotating shaft is rotatably disposed in the moving bin. The rotating shaft is located on the side of the partition plate away from the return spring. An extension rod is disposed on the rotating shaft. The extension rod is an L-shaped rod. A plurality of traction ropes are disposed on the sliding block. One end of each traction rope passes through the partition plate and is connected to the rotating shaft. The extension rod is located between two traction ropes.

[0017] In some embodiments, the power member includes a communication groove formed in the moving bin. One end of a swing rod is disposed at the end of the rotating shaft. One end of the swing rod passes through the communication groove. A plurality of positioning rods for cooperating with the swing rod are disposed on the loading table.

[0018] In some embodiments, the support member includes a support bin disposed on the loading table. The support bin is located between two rotating shafts. A plurality of lifting rods are slidably disposed on the support bin. The lifting rods penetrate through the support bin. One end of each lifting rod outside the support bin is connected to a support plate. A plurality of rotating lead screws are rotatably disposed in the support bin. One end of each of the plurality of rotating lead screws is respectively threadedly connected to a lifting rod. Synchronous worm wheels are disposed on the rotating lead screws. A synchronous worm meshing with the synchronous worm wheels is rotatably disposed in the support bin. A support motor is disposed in the support bin. The power output end of the support motor is connected to the synchronous worm.

[0019] In some embodiments, a plurality of rotating grooves are formed in the support plate. Rotating rods are rotatably disposed in the rotating grooves.

[0020] The present invention at least has the following beneficial effects:

[0021] The design of the offset limiting unit enables the driving wheel not only to be used to convey the steel pipe for grinding, but also to fix the tail end of the longer steel pipe during the grinding process, thereby avoiding the phenomenon of the tail end of the steel pipe shaking during grinding. This shaking will cause a significant decrease in the grinding accuracy of the welding point. When the driving wheel conveys the steel pipe to the designated grinding position, the rotating member controls the driving wheel to deflect. At the same time, the moving member acts in cooperation to drive the two driving wheels to move in opposite directions, so that the steel pipe can fall between the pressing wheels, and the tail end of the steel pipe is supported by the support plate. In this way, the steel pipe always maintains a stable state during the grinding process, avoiding the adverse effects caused by the shaking of the tail end. Moreover, after the steel pipe falls, the two driving wheels will move towards each other to clamp the tail end of the steel pipe again. This clamping effect further enhances the stability of the tail end of the steel pipe, ensuring that it will not undergo any displacement or shaking during the grinding process. Through this dual fixing and clamping mechanism, the offset limiting unit not only improves the grinding accuracy of the welding point, ensures the grinding quality of the steel pipe, but also greatly improves the efficiency and stability of the entire polishing operation. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 It is a schematic diagram of the structure with the grinding table and the extrusion wheel removed;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the loading table of the present invention;

[0025] Figure 4 For the present invention Figure 1 It is a schematic diagram of the structure with the loading table removed;

[0026] Figure 5 It is a schematic diagram of the structure of the rotating part of the present invention;

[0027] Figure 6 For the present invention Figure 5 It is a schematic diagram of the explosion structure;

[0028] Figure 7 It is a schematic diagram of the cross-sectional structure of the moving bin of the present invention;

[0029] Figure 8 It is a schematic diagram of the explosion structure of the support part of the present invention;

[0030] Figure 9 It is a schematic diagram of the structure of the second embodiment of the present invention.

[0031] In the figure: 1, grinding table; 2, extrusion wheel; 3, loading table; 4, driving wheel; 5, mounting shaft group; 51, rotating shaft; 6, moving bin; 7, support plate; 8, steel pipe driving unit; 9, lifting member; 91, power bin; 92, hydraulic bin; 93, piston plate; 94, sliding rod; 95, pressure spring; 96, liquid guide pipe; 97, hydraulic pump; 10, driving member; 101, connecting block; 102, sliding block; 103, mounting seat; 11, offset limiting unit; 12, rotating part; 121, sector plate; 122, rotating tooth; 123, driving worm gear; 124, driving worm; 125, power motor; 13, moving part; 131, partition plate; 132, return spring; 133, rotating shaft; 134, extension rod; 135, towing rope; 14, power member; 141, communication groove; 142, swing rod; 143, positioning rod; 15, support part; 151, support bin; 152, lifting rod; 153, rotating lead screw; 154, synchronous worm gear; 155, synchronous worm; 156, support motor; 16, rotating groove; 17, rotating rod. Detailed Description of the Invention

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1: Please refer to Figures 1-8 , the present invention provides a technical solution: a stainless steel pipe polishing device, including a grinding table 1, a pressing wheel 2, a feeding table 3, and a driving wheel 4. The driving wheel 4 is a motor wheel. In addition to the prior art, it further includes: an installation shaft group 5, including multiple groups of symmetrically arranged rotating shafts 51, each group including two parallel rotating shafts 51, and the rotating shafts 51 rotate on both sides of the feeding table 3;

[0034] A moving bin 6, arranged on the rotating shaft 51; connected to the driving wheel 4;

[0035] A support plate 7, installed on the feeding table 3, used to carry the steel pipe during the grinding process, and the support plate 7 is arc-shaped;

[0036] A steel pipe driving unit 8, arranged on the feeding table 3, and connected to the rotating shaft 51 and the driving wheel 4, used to lift the driving wheel 4 when the driving wheel 4 pushes the steel pipe to move;

[0037] An offset limiting unit 11, arranged on the feeding table 3, and connected to the moving bin 6 and the support plate 7, used to drive a group of driving wheels 4 to deflect during the grinding of the steel pipe, and move in opposite directions while deflecting, so that the steel pipe clamped by the driving wheels 4 drops onto the support plate 7 due to an increased gap, and then controls the driving wheels 4 to reset.

[0038] The steel pipe driving unit 8 includes a lifting member 9 arranged on the feeding table 3, and the lifting member 9 is used to drive the driving wheel 4 to rise. A driving member 10 is arranged on the lifting member 9, and the driving member 10 is used to drive the lifting member 9 to work.

[0039] The lifting member 9 includes a power chamber 91 opened on the loading table 3. The power chamber 91 is rotatably connected to the rotating shaft 51. A hydraulic chamber 92 is opened in the rotating shaft 51. A piston plate 93 is slidably arranged in the hydraulic chamber 92. A sliding rod 94 slidably connected to the rotating shaft 51 is arranged on the piston plate 93. One end of the sliding rod 94 located in the hydraulic chamber 92 is sleeved with a compression spring 95. A liquid guide pipe 96 communicating with each other is arranged on multiple hydraulic chambers 92. A hydraulic pump 97 is arranged in the power chamber 91. The hydraulic pump 97 is communicated with the liquid guide pipe 96. When transporting and grinding the steel pipe, the staff first places the steel pipe between the two driving wheels 4. At this time, the staff starts the driving wheels 4. When the driving wheels rotate, they will drive the steel pipe to move synchronously to send the steel pipe into the pressing wheels 2 on the grinding table 1. At the same time, when there are many welding positions on the steel pipe, the staff can start the hydraulic pump 97 to send the hydraulic oil into the hydraulic chamber 92 through the liquid guide pipe 96. At this time, the piston plate 93 in the hydraulic chamber 92 is pressed, so as to overcome the elastic force of the compression spring 95 and retract, so that the sliding rod 94 drives the driving wheel 4 to rise, thereby synchronously lifting the steel pipe. This design can effectively prevent the welding point on the steel pipe from getting stuck after contacting the pressing wheel 2, thus affecting the movement of the steel pipe, and further avoiding the staff from manually adjusting the position of the steel pipe. At the same time, it can effectively prevent the welding point on the steel pipe from getting stuck after directly contacting the pressing wheel 2. During the transportation and grinding process of the steel pipe, once a jamming phenomenon occurs, the entire grinding process will be forced to interrupt, which will reduce the work efficiency. And this design ensures the continuous and stable movement of the steel pipe by lifting the steel pipe, enabling the grinding work to proceed smoothly, greatly improving the production efficiency and the reliability of the equipment. Not only that, it also avoids the situation that the staff needs to manually adjust the position of the steel pipe due to the jamming of the steel pipe. Manual adjustment not only consumes manpower and time, but also may cause inaccurate adjustment of the steel pipe position due to human factors during the operation, affecting the grinding quality. This design realizes automatic adjustment, reduces manual intervention, reduces the labor intensity, and improves the grinding accuracy and consistency at the same time.

[0040] The driving member 10 includes a connecting block 101 arranged on the sliding rod 94. The connecting block 101 is connected to the moving chamber 6. A sliding block 102 is slidably arranged in the moving chamber 6. An installation seat 103 rotatably connected to the driving wheel 4 is arranged on the sliding block 102, and the installation seat 103 is slidably connected to the moving chamber 6.

[0041] The offset limiting unit 11 includes a rotating member 12 arranged on the rotating shaft 51. The rotating member 12 is used to control the deflection of the driving wheel 4. A moving member 13 is arranged on the moving bin 6. The moving member 13 is used to drive two parallel driving wheels 4 to move in opposite directions. A power member 14 is arranged on the loading table 3. The power member 14 is used to provide power for the operation of the moving member 13. A supporting member 15 is arranged on the loading table 3. The supporting member 15 is used to carry the steel pipe during the grinding process.

[0042] The rotating member 12 includes a sector plate 121 arranged on the rotating shaft 51, and the sector plate 121 is located at one end of the rotating shaft 51 inside the power bin 91. A plurality of rotating engaging teeth 122 are arranged on the sector plates 121 and engage with each other. A transmission worm gear 123 is arranged at one end of the rotating shaft 51 inside the power bin 91. A transmission worm 124 that engages with the transmission worm gear 123 is rotatably arranged in the power bin 91. A power motor 125 is arranged in the power bin 91. The power output end of the power motor 125 is connected to the transmission worm 124. After moving the welding point on the steel pipe to the designated position, the staff drives the power motor 125 to work to drive the transmission worm 124 to rotate. The rotation of the transmission worm 124 drives the transmission worm gear 123 engaged with it to rotate. The rotation of the transmission worm gear 123 drives a plurality of rotating shafts 51 to rotate synchronously. While the rotating shaft 51 rotates, it drives the sector plate 121 to rotate, and the rotating engaging teeth 122 on the sector plate 121 drive the sector plate 121 on the opposite side to rotate synchronously, thereby driving a plurality of rotating shafts 51 and the driving wheels 4 connected to the rotating shafts 51 to rotate, so as to change the angle between the driving wheel 4 and the steel pipe. This design makes the driving wheel 4 squeeze and fix the steel pipe by changing the angle between the driving wheel 4 and the steel pipe, thereby improving the stability during the grinding of the steel pipe. By changing the angle between the driving wheel 4 and the steel pipe, the driving wheel 4 can squeeze and fix the steel pipe more effectively. During the grinding process of the steel pipe, stable fixation is the key to ensuring the grinding quality. This design makes the driving wheel 4 and the steel pipe fit more tightly, greatly reducing the shaking and displacement of the steel pipe during grinding, and providing a solid foundation for the subsequent grinding work.

[0043] The moving member 13 includes a partition plate 131 arranged in the moving bin 6. A return spring 132 is arranged on the partition plate 131. One end of the return spring 132 is connected to the sliding block 102. A rotating shaft 133 is rotatably arranged in the moving bin 6. The rotating shaft 133 is located on the side of the partition plate 131 away from the return spring 132. An extension rod 134 is arranged on the rotating shaft 133. The extension rod 134 is an L-shaped rod. A plurality of traction ropes 135 are arranged on the sliding block 102. One end of the traction rope 135 passes through the partition plate 131 and is connected to the rotating shaft 133, and the extension rod 134 is located between the two traction ropes 135.

[0044] The power component 14 includes a communication groove 141 formed on the moving bin 6. One end of the swing rod 142 is arranged at the end of the rotating shaft 133. One end of the swing rod 142 passes through the communication groove 141. A plurality of positioning rods 143 cooperating with the swing rod 142 are arranged on the loading table 3.

[0045] While the rotating shaft 51 rotates, it will drive the moving bin 6 connected thereto to rotate synchronously around the rotation axis. While the moving bin 6 rotates, it drives the swing rod 142 to rotate synchronously. While the swing rod 142 rotates, it contacts the positioning rod 143 and rotates around the rotating shaft 133 under the push of the positioning rod 143. While the rotating shaft 133 rotates, it drives the extension rod 134 to rotate to one side. The rotation of the extension rod 134 drives the traction rope 135 to stretch, thereby driving the sliding block 102 and the track driving wheel 4 located on the sliding block 102 to move in the moving bin 6. At this time, the gap between the two driving wheels 4 is larger than the diameter of the steel pipe, so that the steel pipe falls onto the support plate 7. The height of the support plate 7 is adjustable, so the falling distance of the steel pipe can be adjusted. When the front end of the steel pipe falls onto the pressing wheel 2, the staff will cooperate with the pressing wheel 2 by moving the grinding wheel to press and fix the steel pipe. While the swing rod 142 is continuously moving, it disengages from the positioning rod 143. At this time, the sliding block 102 is reset under the push of the return spring 132, thereby driving the driving wheel 4 to press the steel pipe again to further improve the stability during the grinding of the steel pipe. After the swing rod 142 disengages from the positioning rod 143, the sliding block 102 drives the driving wheel 4 to press the steel pipe again under the action of the return spring 132. This pressing and fixing mechanism can ensure that the steel pipe always maintains a stable position and posture during the grinding process. Even if it is interfered by external forces or vibrates during the grinding process, the steel pipe is not easy to displace or shake, greatly improving the stability of grinding. At the same time, the gap between the driving wheels 4 can be adjusted according to the diameter of the steel pipe. When the steel pipe falls, the gap becomes larger to make the steel pipe fall smoothly; during the reset process, the driving wheels 4 can fit the steel pipe again. This flexibility enables the device to adapt to the grinding requirements of steel pipes with different diameters. No matter how thick or thin the steel pipe is, it can ensure a stable pressing and fixing effect, further improving the stability of grinding.

[0046] Moreover, the stable fixing state of the steel pipe can effectively reduce the grinding deviation caused by the vibration of the steel pipe. During the grinding process, any tiny vibration may affect the contact accuracy between the grinding tool and the surface of the steel pipe, resulting in uneven grinding or defects. This design improves the stability of the steel pipe, reduces the influence of vibration on the grinding accuracy, and makes the surface smoothness of the ground steel pipe higher and the dimensional accuracy more accurate.

[0047] The support member 15 includes a support bin 151 disposed on the loading table 3. The support bin 151 is located between two rotating shafts 51. A plurality of lifting rods 152 are slidably disposed on the support bin 151. The lifting rods 152 penetrate through the support bin 151. One end of the lifting rod 152 outside the support bin 151 is connected to the support plate 7. A plurality of rotating lead screws 153 are rotatably disposed in the support bin 151. One end of each of the plurality of rotating lead screws 153 is threadedly connected to the lifting rod 152. A synchronous worm gear 154 is disposed on the rotating lead screw 153. A synchronous worm 155 engaged with the synchronous worm gear 154 is rotatably disposed in the support bin 151. A support motor 156 is disposed in the support bin 151. The power output end of the support motor 156 is connected to the synchronous worm 155.

[0048] During the grinding process, the support plate 7 cooperates with multiple sets of driving wheels 4 to clamp and fix the steel pipe. When the steel pipe is finished grinding, the driving wheels 4 return to the initial state. During their rotation, the gap between the two driving wheels 4 will change from small to large and then from large to small. When the gap becomes larger, the support motor 156 under program control will drive the synchronous worm 155 to rotate, thereby driving the synchronous worm gear 154 to rotate, further driving the rotating lead screw 153 to rotate, and finally driving the lifting rod 152 and the support plate 7 connected to the lifting rod 152 to rise, lifting the steel pipe up again so that it can be pushed and displaced by the driving wheels 4 again.

[0049] Embodiment 2: Please refer to Figure 9 , the present invention provides a technical solution: A plurality of rotating grooves 16 are formed on the support plate 7. A rotating rod 17 is rotatably disposed in the rotating groove 16. The arrangement of the rotating rod 17 makes the resistance received by the steel pipe during rotation smaller, thereby reducing the wear of the support rod when the steel pipe rotates. The arrangement of the rotating rod 17 changes the contact mode between the steel pipe and the support plate 7 from traditional sliding friction to rolling friction during rotation. The resistance of rolling friction is much smaller than that of sliding friction, which greatly reduces the resistance required to be overcome during the rotation of the steel pipe. The steel pipe can rotate more easily and smoothly on the support plate 7, reducing the phenomenon of rotation jamming caused by excessive resistance, improving the fluency and efficiency of the entire steel pipe processing process. At the same time, due to the reduction of the rotation resistance, under the action of the same driving force, the steel pipe can obtain a higher rotation speed, which not only shortens the processing time of the steel pipe, but also can improve the effect of subsequent processes such as grinding to a certain extent, because a faster rotation speed can make the grinding tool act more evenly on the surface of the steel pipe.

[0050] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0051] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A stainless steel pipe polishing device, comprising a polishing table (1), an extrusion wheel (2), a feeding table (3) and a driving wheel (4), characterized in that: Also includes: An installation shaft group (5) includes a plurality of groups of symmetrically arranged rotating shafts (51), each group includes two parallel rotating shafts (51), and the rotating shafts (51) rotate on both sides of the loading platform (3); A movable bin (6) is arranged on the rotating shaft (51); connected to a driving wheel (4); A support plate (7) is installed on the loading platform (3) and is used to support the steel pipe during the grinding process, and the support plate (7) is arc-shaped; The steel pipe driving unit (8) is arranged on the loading platform (3) and is connected to the rotating shaft (51) and the driving wheel (4) so ​​as to drive the driving wheel (4) to lift when the driving wheel (4) pushes the steel pipe to move; The deflection limiting unit (11) is arranged on the loading platform (3) and connected to the movable bin (6) and the support plate (7). It is used to drive a set of driving wheels (4) to deflect when the steel pipe is being polished, and to move in opposite directions to each other while deflecting, so that the steel pipe clamped by the driving wheels (4) falls onto the support plate (7) due to the increase in the gap, and then the driving wheels (4) are controlled to reset.

2. The stainless steel pipe polishing device according to claim 1, characterized in that: The steel pipe driving unit (8) comprises a lifting member (9) arranged on the loading platform (3), and the lifting member (9) is used to drive the driving wheel (4) to rise. The lifting member (9) is provided with a driving member (10), and the driving member (10) is used to drive the lifting member (9) to work.

3. The stainless steel pipe polishing device according to claim 2, characterized in that: The lifting member (9) includes a power bin (91) opened on the loading platform (3), the power bin (91) is rotatably connected to the rotating shaft (51), a hydraulic bin (92) is opened in the rotating shaft (51), a piston plate (93) is slidably arranged in the hydraulic bin (92), a sliding rod (94) slidably connected to the rotating shaft (51) is arranged on the piston plate (93), the sliding rod (94) is located in the hydraulic bin (92) and one end of which is sleeved with a pressure spring (95), a plurality of the hydraulic bins (92) are provided with mutually connected liquid guide tubes (96), a hydraulic pump (97) is arranged in the power bin (91), and the hydraulic pump (97) is connected to the liquid guide tube (96).

4. The stainless steel pipe polishing device according to claim 3, characterized in that: The driving member (10) comprises a connecting block (101) arranged on the sliding rod (94), the connecting block (101) being connected to the mobile bin (6), a sliding block (102) being slidably arranged in the mobile bin (6), a mounting seat (103) being rotatably connected to the driving wheel (4) being arranged on the sliding block (102), and the mounting seat (103) being slidably connected to the mobile bin (6).

5. The stainless steel pipe polishing device according to claim 4, characterized in that: The offset limiting unit (11) comprises a rotating member (12) arranged on a rotating shaft (51), and the rotating member (12) is used to control the deflection of the driving wheel (4); the moving bin (6) is provided with a moving member (13), and the moving member (13) is used to drive two mutually parallel driving wheels (4) to move in opposite directions; the loading platform (3) is provided with a power member (14), and the power member (14) is used to provide power for the moving member (13); the loading platform (3) is provided with a supporting member (15), and the supporting member (15) is used to support the steel pipe during the grinding process.

6. The stainless steel pipe polishing device according to claim 5, characterized in that: The rotating member (12) comprises a sector plate (121) arranged on a rotating shaft (51), and the sector plate (121) is located at one end of the rotating shaft (51) located in a power bin (91), and a plurality of the sector plates (121) are provided with rotating latch teeth (122) that mesh with each other, and a transmission worm gear (123) is provided at one end of the rotating shaft (51) located in the power bin (91), and a transmission worm (124) that meshes with the transmission worm gear (123) is rotatably arranged in the power bin (91), and a power motor (125) is provided in the power bin (91), and a power output end of the power motor (125) is connected to the transmission worm gear (124).

7. The stainless steel pipe polishing device according to claim 6, characterized in that: The moving member (13) comprises an isolation plate (131) arranged in the moving bin (6), a return spring (132) being arranged on the isolation plate (131), one end of the return spring (132) being connected to the sliding block (102), a rotating shaft (133) being rotatably arranged in the moving bin (6), the rotating shaft (133) being located on a side of the isolation plate (131) away from the return spring (132), an extension rod (134) being arranged on the rotating shaft (133), the extension rod (134) being an L-shaped rod, a plurality of traction ropes (135) being arranged on the sliding block (102), one end of the traction rope (135) passing through the isolation plate (131) and being connected to the rotating shaft (133), and the extension rod (134) being located between two traction ropes (135).

8. The stainless steel pipe polishing device according to claim 7, characterized in that: The power member (14) comprises a connecting groove (141) provided on the movable bin (6); a swing rod (142) is provided at the end of the rotating shaft (133); one end of the swing rod (142) passes through the connecting groove (141); and a plurality of positioning rods (143) used in conjunction with the swing rod (142) are provided on the loading platform (3).

9. The stainless steel pipe polishing device according to claim 8, characterized in that: The support member (15) comprises a support bin (151) arranged on the loading platform (3), the support bin (151) being located between the two rotating shafts (51), a plurality of lifting rods (152) being slidably arranged on the support bin (151), the lifting rods (152) penetrating the support bin (151), one end of the lifting rods (152) being located outside the support bin (151) and connected to the support plate (7), and a plurality of rotating rods (152) being rotatably arranged inside the support bin (151) A screw rod (153), one end of each of the rotating screw rods (153) is threadedly connected to the lifting rod (152), a synchronous worm wheel (154) is arranged on the rotating screw rod (153), a synchronous worm (155) engaged with the synchronous worm wheel (154) is rotatably arranged in the support bin (151), a support motor (156) is arranged in the support bin (151), and a power output end of the support motor (156) is connected to the synchronous worm (155).

10. The stainless steel pipe polishing device according to claim 1, characterized in that: The support plate (7) is provided with a plurality of rotation grooves (16), and a rotation rod (17) is rotatably arranged in the rotation groove (16).

Images