A stainless steel pipe inner tube polishing equipment

Abstract

This invention relates to the field of stainless steel pipe technology and discloses a stainless steel pipe inner tube polishing device, including a worktable and two mounting blocks disposed above the worktable. Stainless steel pipes are placed on the two mounting blocks. Two symmetrical electric slide rails are also provided on the worktable. Mounting frames are slidably mounted on the two electric slide rails, and hydraulic cylinders are mounted at the front ends of the mounting frames. A limit plate is provided at the output end of the hydraulic cylinder, and a sliding rod is slidably mounted on the limit plate. A mounting plate is mounted on the end of the sliding rod away from the limit plate, and a positioning plate is also provided on the limit plate. In this invention, the mounting blocks on the worktable facilitate stable placement of the stainless steel pipes, and the positioning structure ensures reliable positioning without affecting pipe rotation. The electric slide rails drive the mounting frames and hydraulic cylinders to move precisely, allowing the polishing components to smoothly enter the pipe, adapting to the polishing needs of pipes of different lengths. The sliding rod and mounting plate cooperate to achieve buffer adjustment, improving the stability of the polishing process.

Description

Technical Field

[0001] This invention belongs to the field of stainless steel pipe technology, and more specifically, relates to a stainless steel pipe inner tube polishing device. Background Technology

[0002] Stainless steel pipes are widely used in key fields such as petrochemicals, food processing, and pharmaceutical transportation due to their excellent corrosion resistance, mechanical strength, and cleanliness. The quality of their inner wall surface directly affects fluid transportation efficiency, system service life, and media cleanliness. Inner wall polishing, as a core processing step, is necessary to remove defects such as rolling oxide scale, welding residue, and mechanical burrs, while reducing surface roughness to prevent scaling and microbial growth. However, due to the hollow structure of the pipe, the constraints of the inner diameter, and the complex inner wall morphology, inner pipe polishing has long faced technical bottlenecks.

[0003] The ability to process complex inner walls is weak. For stainless steel tubes with concave structures and irregular cavities, traditional polishing components are mostly rigid fixed structures that cannot adapt to changes in the tube wall contour. This results in polishing dead corners on concave sidewalls and a lack of flexible steering and adjustment mechanisms, making it difficult to achieve precise polishing of concave areas and creating technical pain points such as incomplete or uneven polishing.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A stainless steel pipe inner tube polishing device includes a worktable and two mounting blocks positioned above the worktable. Stainless steel pipes are placed on the two mounting blocks. Two symmetrical electric slide rails are also provided on the worktable. Mounting frames are slidably mounted on the two electric slide rails. A hydraulic cylinder is mounted at the front end of each mounting frame. A limit plate is provided at the output end of the hydraulic cylinder. A sliding rod is slidably mounted on the limit plate. A mounting plate is located at the end of the sliding rod away from the limit plate. A positioning plate is also provided on the limit plate. An electric push rod is mounted on the positioning plate. An arc-shaped mounting plate is located at the output end of the electric push rod. A servo motor is housed within the arc-shaped mounting plate. A polishing assembly is located at the output end of the servo motor. Two placement frames are located at the end of the mounting plate away from the polishing assembly. Placement bearings are symmetrically positioned between the two placement frames. Rotating rods are symmetrically positioned between the two placement bearings. Traveling wheels are located at opposite ends of the two rotating rods.

[0006] In a preferred embodiment of the present invention, the front end of the workbench is provided with an inspection door, the bottom of the workbench is provided with support legs around the perimeter, the workbench is also provided with an L-shaped fixing frame, the L-shaped fixing frame is provided with a cylinder, and the output end of the cylinder is provided with an upper positioning component.

[0007] In a preferred embodiment of the present invention, a protective shell is provided above the workbench. A circular slot is provided in the middle of the protective shell. A circular rotating ring is rotatably provided on the inner wall of the circular slot. Two side positioning components are provided in the inner cavity of the circular rotating ring. The two side positioning components are symmetrical to each other.

[0008] In a preferred embodiment of the present invention, the outer ring of the circular rotating ring is provided with a gear assembly, the gear assembly consists of a gear ring and a drive gear, a drive motor is provided on one side wall of the drive gear, and a rotating shaft is provided at the output end of the drive motor. The rotating shaft movably passes through the protective housing, and the end of the rotating shaft away from the drive motor is provided on the drive gear.

[0009] In a preferred embodiment of the present invention, the mounting plate has two rectangular slots that are symmetrical to each other, and the mounting plate has two sliding grooves. Each of the two sliding grooves has a sliding slider that is slidably disposed thereon. The two sliding sliders are symmetrical to each other, and each sliding slider has a return spring. The other end of each return spring is disposed on the inner wall of the sliding groove.

[0010] In a preferred embodiment of the present invention, each of the two movable sliders is provided with a connecting rod at one end away from the movable slide groove, and a placement block is provided at one end of each of the two connecting rods away from the movable sliders. The two ends of the placement block are provided on the placement frame.

[0011] In a preferred embodiment of the present invention, a connecting rod is provided on the connecting rod, and a non-circular mounting bracket is provided at the other end of the connecting rod, and a driving plate is provided on the non-circular mounting bracket.

[0012] In a preferred embodiment of the present invention, the mounting plate is provided with two fixing blocks, and mounting bearings are provided on the opposite side walls of the two fixing blocks. Rotating rods are provided on the two mounting bearings, and the two rotating rods are symmetrical to each other. An arc-shaped mounting plate is provided at the opposite end of the two rotating rods.

[0013] In a preferred embodiment of the present invention, a cam is provided on the rotating rod, and a torsion spring is provided on the rotating rod. The two ends of the torsion spring are respectively provided on the side wall opposite to the cam and the mounting bearing. A drive plate is attached to the upper end of the cam.

[0014] In a preferred embodiment of the present invention, an arc-shaped groove is provided on the arc-shaped mounting plate, and an upper sliding block and a lower sliding block are slidably disposed in the inner cavity of the arc-shaped groove. An electric push rod is provided at the upper end of the upper sliding block, and the end of the lower sliding block away from the arc-shaped groove is disposed on the mounting plate.

[0015] Compared with the prior art, the present invention has the following advantages: This invention features a mounting block on the workbench that facilitates stable placement of stainless steel pipes, achieving reliable positioning without affecting pipe rotation. An electric slide rail drives the mounting frame and hydraulic cylinder for precise movement, allowing the polishing assembly to smoothly enter the pipe and adapt to polishing needs of pipes of different lengths. A sliding rod and mounting plate work together to provide buffering adjustment, improving the stability of the polishing process. The placement frame, bearings, and rotating rod-supported wheels can adaptively move along the pipe wall, easily handling concave structures within the pipe. A servo motor drives the polishing assembly for efficient polishing, while an electric push rod on the positioning plate adjusts the arc-shaped mounting plate, allowing the polishing assembly to flexibly steer and precisely handle concave sidewalls. The overall structure exhibits strong linkage, good polishing uniformity, and high adaptability, significantly improving work efficiency and processing quality.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 A three-dimensional structural diagram of a stainless steel pipe inner tube polishing equipment; Figure 2 This is a side view of a stainless steel pipe inner tube polishing device. Figure 3 This is a schematic cross-sectional view of a stainless steel tube in a stainless steel tube polishing equipment. Figure 4 A schematic diagram of the hydraulic cylinder connection structure of a stainless steel pipe inner tube polishing equipment. Figure 5 This is a schematic diagram of the mounting plate structure for a stainless steel pipe inner tube polishing equipment. Figure 6 This is a side view of the mounting plate structure of a stainless steel pipe inner tube polishing equipment. Figure 7 A stainless steel pipe inner tube polishing device Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 This is an exploded structural diagram of the mounting plate and the arc-shaped mounting plate of a stainless steel pipe inner tube polishing equipment.

[0018] In the picture: 1. Workbench; 11. Inspection door; 111. Support leg; 12. Mounting block; 121. Protective housing; 122. Drive motor; 123. Gear assembly; 124. Circular rotating ring; 125. Side positioning assembly; 13. L-shaped fixing bracket; 131. Cylinder; 132. Upper positioning assembly; 14. Stainless steel pipe; 15. Electric slide rail; 151. Mounting bracket; 2. Hydraulic cylinder; 21. Mounting plate; 211. Rectangular slot; 22. Moving slide; 221. Moving slider; 222. Return spring; 23. Connecting rod; 231. Connecting rod; 232. Irregular mounting bracket; 24. Placement block; 241. Placement frame; 25. Placement bearing; 251. Rotating rod; 252. Traveling wheel; 26. Drive plate; 27. Limiting plate; 271. Sliding rod; 3. Positioning plate; 31. Electric push rod; 32. Arc-shaped mounting plate; 321. Arc-shaped slide groove; 322. Upper sliding block; 323. Lower sliding block; 4. Servo motor; 41. Polishing assembly; 5. Fixing block; 51. Bearing mounting; 512. Rotating rod; 52. Cam; 53. Torsion spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0020] Example 1:

[0021] like Figures 1 to 8As shown, a stainless steel pipe inner tube polishing device includes a worktable 1 and two mounting blocks 12 disposed above the worktable. Stainless steel pipes 14 are placed on the two mounting blocks 12. Two electric slide rails 15 are also provided on the worktable 1, symmetrically arranged. Mounting brackets 151 are slidably mounted on the two electric slide rails 15. A hydraulic cylinder 2 is mounted at the front end of the mounting bracket 151. A limit plate 27 is provided at the output end of the hydraulic cylinder 2. A sliding rod 271 is slidably mounted on the limit plate 27. A mounting plate 21 is provided at the end of the sliding rod 271 away from the limit plate 27. The limit plate 27 is also equipped with... A positioning plate 3 is provided, and an electric push rod 31 is provided on the positioning plate 3. An arc-shaped mounting plate 32 is provided at the output end of the electric push rod 31. A servo motor 4 is provided in the inner cavity of the arc-shaped mounting plate 32. A polishing component 41 is provided at the output end of the mounting plate 21 away from the polishing component 41. Two placement racks 241 are provided at the end of the mounting plate 21 away from the polishing component 41. A placement bearing 25 is provided between the two placement racks 241. The two placement bearings 25 are symmetrical to each other. A rotating rod 251 is provided between the two placement bearings 25. The two rotating rods 251 are symmetrical to each other. A traveling wheel 252 is provided at the opposite end of the two rotating rods 251. The mounting block 12 on the workbench 1 facilitates the stable placement of the stainless steel pipe 14, and the positioning structure ensures reliable positioning without affecting the rotation of the pipe. The electric slide rail 15 drives the mounting frame 151 and the hydraulic cylinder 2 to move precisely, allowing the polishing component 41 to smoothly enter the pipe, adapting to the polishing needs of pipes of different lengths. The sliding rod 271 works with the mounting plate 21 to achieve buffer adjustment, improving the stability of the polishing process. The placing frame 241, the placing bearing 25, and the traveling wheels 252 supported by the rotating rod 251 can move adaptively against the pipe wall, easily handling the concave structure inside the pipe. The servo motor 4 drives the polishing component 41 to polish efficiently. The electric push rod 31 on the positioning plate 3 adjusts the arc-shaped mounting plate 32, driving the polishing component 41 to turn flexibly and precisely handle the concave sidewall. The overall structure has strong linkage, good polishing uniformity, and high adaptability, greatly improving work efficiency and processing quality.

[0022] like Figures 1 to 3 As shown in the specific embodiment, a maintenance door 11 is provided at the front end of the workbench 1, and support legs 111 are provided around the bottom of the workbench 1. An L-shaped fixing frame 13 is also provided on the workbench 1, and a cylinder 131 is provided on the L-shaped fixing frame 13. An upper positioning component 132 is provided at the output end of the cylinder 131. In this configuration, the maintenance door 11 facilitates the maintenance and repair of the internal components of the workbench 1 by the staff, and the support legs 111 provide stable support for the workbench 1, ensuring the overall stability of the equipment during operation. The L-shaped fixing frame 13 provides a stable mounting base for the cylinder 131. The cylinder 131 drives the upper positioning component 132 to press the stainless steel tube 14 downward, forming a three-dimensional positioning structure with the side positioning component 125. This ensures that the stainless steel tube 14 is reliably positioned without affecting its subsequent rotation function, providing a stable workpiece posture for polishing operations.

[0023] like Figures 1 to 3 As shown, a protective housing 121 is further provided above the workbench 1. A circular slot is formed in the center of the protective housing 121, and a circular rotating ring 124 is rotatably mounted on the inner wall of the circular slot. Two side positioning components 125 are symmetrically arranged within the inner cavity of the circular rotating ring 124. In this configuration, the protective housing 121 can prevent metal debris from splashing during the polishing process, protecting equipment components and the safety of operators. The circular rotating ring 124 provides a mounting carrier for the side positioning components 125 and is coaxially arranged with the stainless steel tube 14. When the circular rotating ring 124 rotates, it can drive the side positioning components 125 to rotate synchronously, thereby driving the stainless steel tube 14 to rotate, enabling the polishing assembly 41 to perform circumferential and uniform polishing of the inner wall of the stainless steel tube 14, improving polishing consistency.

[0024] like Figures 1 to 3 As shown, further, a gear assembly 123 is provided on the outer ring of the circular rotating ring 124. The gear assembly 123 consists of a gear ring and a drive gear. A drive motor 122 is provided on one side wall of the drive gear, and a rotating shaft is provided at the output end of the drive motor 122. The rotating shaft movably passes through the protective housing 121, and the end of the rotating shaft away from the drive motor 122 is provided on the drive gear. In this configuration, the drive motor 122 outputs torque through the rotating shaft, driving the drive gear of the gear assembly 123 to rotate. The drive gear meshes with the gear ring on the outer ring of the circular rotating ring 124, transmitting power smoothly to the circular rotating ring 124 and achieving uniform rotation of the circular rotating ring 124. The gear transmission structure has the characteristics of high transmission accuracy and strong stability, which can ensure that the stainless steel tube 14 rotates at a uniform speed and avoid the polishing effect due to speed fluctuations.

[0025] Example 2:

[0026] The difference between the above embodiments and this embodiment is that: Figures 1 to 6 and Figure 8 As shown, a stainless steel pipe inner tube polishing device has two rectangular slots 211 on the mounting plate 21, which are symmetrical to each other. The mounting plate 21 also has two movable slides 22, and each of the two movable slides 22 has a movable slider 221 slidably disposed in its inner cavity. The two movable sliders 221 are symmetrical to each other, and each of the two movable sliders 221 is provided with a return spring 222. The other end of each return spring 222 is disposed on the inner wall of the movable slide 22.

[0027] like Figures 1 to 6 and Figure 8As shown, in a specific embodiment, each of the two movable sliders 221 has a connecting rod 23 at one end away from the movable slide groove 22, and a placement block 24 is provided at one end of each connecting rod 23 away from the movable slider 221. The two ends of the placement block 24 are mounted on the placement frame 241. In this configuration, the movable slider 221 and the movable slide groove 22 form a sliding fit structure. With the elastic force of the return spring 222, the connecting rod 23 can drive the placement block 24 and the placement frame 241 to perform adaptive up-down adjustment. When the traveling wheel 252 contacts the concave part of the inner wall of the stainless steel tube 14, the traveling wheel 252 can be moved downward through this sliding structure, ensuring that the traveling wheel 252 always fits against the tube wall, providing stable support for the movement of the polishing assembly 41 and preventing the polishing assembly 41 from shifting due to the unevenness of the tube wall.

[0028] like Figures 1 to 6 and Figure 8 As shown, a connecting rod 231 is further provided on the connecting rod 23, and a shaped mounting bracket 232 is provided at the other end of the connecting rod 231. A drive plate 26 is provided on the shaped mounting bracket 232. In this configuration, the connecting rod 231 realizes the rigid connection between the connecting rod 23 and the shaped mounting bracket 232, converting the vertical displacement of the connecting rod 23 into the synchronous displacement of the drive plate 26. When the traveling wheel 252 moves downward due to the concave shape of the pipe wall, the connecting rod 23 drives the shaped mounting bracket 232 and the drive plate 26 to move downward through the connecting rod 231, so that the drive plate 26 can accurately press the subsequent cam 52, realize the transmission of mechanical force, and provide the power trigger condition for the angle adjustment of the polishing component 41, forming a linkage mechanism of adaptive displacement of the traveling wheel, triggering of the drive plate, and adjustment of the polishing angle.

[0029] Example 3:

[0030] The difference between the above embodiments and this embodiment is that: Figures 1 to 8 As shown, a stainless steel pipe inner tube polishing device has two fixing blocks 5 on the mounting plate 21. The two fixing blocks 5 have mounting bearings 51 on their opposite side walls. The two mounting bearings 51 have rotating rods 512 on them. The two rotating rods 512 are symmetrical to each other. The opposite ends of the two rotating rods 512 are provided with arc-shaped mounting plates 32.

[0031] like Figures 1 to 8As shown, in a specific embodiment, a cam 52 is provided on the rotating rod 512, and a torsion spring 53 is provided on the rotating rod 512. The two ends of the torsion spring 53 are respectively provided on the opposite sidewalls of the cam 52 and the mounting bearing 51. A drive plate 26 is attached to the upper end of the cam 52. In this configuration, the contact between the cam 52 and the drive plate 26 allows the downward displacement of the drive plate 26 to push the cam 52 to rotate around the rotating rod 512. The mounting bearing 51 provides flexible rotational support for the rotating rod 512. The torsion spring 53 has an elastic reset function. When the drive plate 26 resets, the torsion spring 53 can drive the cam 52 and the rotating rod 512 to return to their initial positions. The rotation of the rotating rod 512 directly drives the arc-shaped mounting plate 32 and the polishing assembly 41 to rotate, realizing the angle switching of the polishing assembly 41, so that the polishing assembly 41 can adapt to the side polishing requirements of the concave part of the inner wall of the stainless steel tube 14.

[0032] like Figures 1 to 6 and Figure 8 As shown, the arc-shaped mounting plate 32 is further provided with an arc-shaped sliding groove 321. An upper sliding block 322 and a lower sliding block 323 are slidably disposed inside the arc-shaped sliding groove 321. An electric push rod 31 is provided at the upper end of the upper sliding block 322, and the end of the lower sliding block 323 away from the arc-shaped sliding groove 321 is disposed on the mounting plate 21. In this configuration, the arc-shaped sliding groove 321, the upper sliding block 322, and the lower sliding block 323 form an arc-shaped sliding guide structure, which provides precise guidance for the rotation of the arc-shaped mounting plate 32, ensuring a smooth trajectory when the arc-shaped mounting plate 32 drives the polishing assembly 41 to rotate. The electric push rod 31 applies a pushing force through the upper sliding block 322, which can assist the arc-shaped mounting plate 32 in rotating or resetting. At the same time, in conjunction with the fixed support function of the lower sliding block 323, it improves the installation stability of the arc-shaped mounting plate 32, avoids the position displacement of the polishing assembly 41 due to vibration during the polishing process, and ensures the polishing accuracy of the concave side.

[0033] The implementation principle of the stainless steel pipe inner tube polishing equipment of the present invention is as follows: First, the worker places the stainless steel pipe 14 onto the mounting block 12. After the stainless steel pipe 14 is placed, the worker controls the side positioning component 122 and the cylinder 131 to operate. This allows the side positioning component 122 to position the side wall of the stainless steel pipe 14, while the cylinder 131 drives the upper positioning component 132 to position the upper part of the stainless steel pipe 14 (the specific operation of the side positioning component 122 and the cylinder 131 is existing technology, while the upper positioning component 13 positions the stainless steel pipe 14, and the stainless steel pipe 14 can still rotate at this time). Once the stainless steel tube 14 is positioned, the operator controls the electric slide rail 15 to move, which in turn drives the mounting frame 151 to move, thereby driving the hydraulic cylinder 2 to move horizontally, allowing the polishing component 41 at the output end of the hydraulic cylinder 2 to enter the inner cavity of the stainless steel tube 14. When the polishing component 41 enters the inner cavity of the stainless steel tube 14, the operator controls the servo motor 4 to run, so that the polishing component 41 can polish the inner wall of the stainless steel tube 14 (at the same time, the operator also needs to control the drive motor 122 to run. When the drive motor 122 runs, it can drive the gear assembly 123 to rotate, so the gear assembly 123 can drive the circular rotating ring 124 to rotate. When the circular rotating ring 124 can drive the side positioning component 125 to rotate, the side positioning component 125 can drive the stainless steel tube 14 to rotate). Because of the shape and other characteristics of the stainless steel tube 14, its interior may be concave. Therefore, the polishing component 41 polishes while moving along the inner wall of the stainless steel tube 14, allowing the traveling wheel 252 to move along the inner wall of the stainless steel tube 14. When the polishing component 41 and the traveling wheel 252 move to the concave part of the stainless steel tube 14, the traveling wheel 252 can move downward with the assistance of the moving slide groove 22 opened on the mounting plate 21, the inner cavity sliding slider 221, and the return spring 222, and with the assistance of the connecting rod 23, the placement block 24, and the placement frame 241. This allows the traveling wheel 252 to fit against the bottom of the concave inner cavity of the stainless steel tube 14, thus ensuring that the traveling wheel 252 can move within the concave inner cavity of the stainless steel tube 14. As the walking wheel 252 moves downward, it can also drive the connecting rod 231 to move downward through the connecting rod 23. When the connecting rod 231 moves downward, it can drive the irregular mounting bracket 232 to move downward. When the irregular mounting bracket 232 moves downward, it can drive the drive plate 26 on the other side wall to move downward. Therefore, the drive plate 26 can press the cam 52, so that the cam 52 can rotate with the assistance of the mounting bearing 51 and the rotating rod 512. Therefore, the rotating rod 512 can drive the arc mounting plate 32 to rotate. When the arc mounting plate 32 rotates, it can drive the servo motor 4 and the polishing component 41 to rotate. Therefore, the polishing component 41 can rotate 90 degrees (and when the polishing component 41 rotates 90 degrees, one end of the drive plate 26 is attached to the side wall of the cam 52, so as the drive plate 26 continues to move downward, it will not squeeze the cam 52 to rotate). When the polishing assembly 41 rotates 90 degrees, its polishing surface will face the opposite side walls of the concave groove provided inside the stainless steel tube 14. At this time, the hydraulic cylinder 2 can be operated to polish the opposite side walls of the concave groove provided inside the stainless steel tube 14. After polishing is completed, the operator controls cylinder 31 to move it, causing the upper sliding block 322 to move upward. This allows the arc-shaped mounting plate 32, polishing assembly 41, and mounting plate 21 to move upward until the traveling wheel 252 leaves the concave groove inside the stainless steel tube 14 and is at the same level as the inner cavity of the stainless steel tube 14. At this point, the electric slide rail 15 is controlled to continue running until the traveling wheel 252 and polishing assembly 41 leave the concave groove inside the stainless steel tube 14 and are above the stainless steel tube 14. Then, cylinder 31 is controlled to reset, allowing the drive plate 26 to reset. At this point, the rotating rod 512 can reset with the assistance of the torsion spring 53, allowing the cam 52 and arc-shaped mounting plate 32 to reset, thus continuing the normal polishing of the stainless steel tube 14.

[0034] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stainless steel pipe inner tube polishing device, characterized in that: It includes a workbench (1) and two mounting blocks (12) set above the workbench. Stainless steel pipes (14) are placed on the two mounting blocks (12). The workbench (1) is also provided with two electric slide rails (15). The two electric slide rails (15) are symmetrical to each other. Mounting brackets (151) are slidably arranged on the two electric slide rails (15). A hydraulic cylinder (2) is provided at the front end of the mounting brackets (151). The hydraulic cylinder (2) is provided with a limit plate (27) at its output end. A sliding rod (271) is slidably provided on the limit plate (27). A mounting plate (21) is provided at the end of the sliding rod (271) away from the limit plate (27). A positioning plate (3) is also provided on the limit plate (27). An electric push rod (31) is provided on the positioning plate (3). An arc-shaped mounting plate (32) is provided at the output end of the electric push rod (31). A servo motor (4) is provided in the inner cavity of the arc-shaped mounting plate (32). A polishing component (41) is provided at the output end of the servo motor (4). Two placement brackets (241) are provided at the end of the mounting plate (21) away from the polishing component (41). A placement bearing (25) is provided between the two placement brackets (241). The two placement bearings (25) are symmetrical to each other. A rotating rod (251) is provided between the two placement bearings (25). The two rotating rods (251) are symmetrical to each other. A traveling wheel (252) is provided at the opposite end of the two rotating rods (251).

2. The stainless steel pipe inner tube polishing equipment according to claim 1, characterized in that, The workbench (1) is provided with an inspection door (11) at the front end. Support legs (111) are provided around the bottom of the workbench (1). An L-shaped fixing frame (13) is also provided on the workbench (1). A cylinder (131) is provided on the L-shaped fixing frame (13). An upper positioning component (132) is provided at the output end of the cylinder (131).

3. The stainless steel pipe inner tube polishing equipment according to claim 1, characterized in that, A protective shell (121) is also provided above the workbench (1). A circular slot is provided in the middle of the protective shell (121). A circular rotating ring (124) is rotatably provided on the inner wall of the circular slot of the protective shell (121). Two side positioning components (125) are provided in the inner cavity of the circular rotating ring (124). The two side positioning components (125) are symmetrical to each other.

4. The stainless steel pipe inner tube polishing equipment according to claim 3, characterized in that, The outer ring of the circular rotating ring (124) is provided with a gear assembly (123). The gear assembly (123) consists of a gear ring and a drive gear. A drive motor (122) is provided on one side wall of the drive gear. A rotating shaft is provided at the output end of the drive motor (122). The rotating shaft moves through the protective housing (121). The end of the rotating shaft away from the drive motor (122) is provided on the drive gear.

5. The stainless steel pipe inner tube polishing equipment according to claim 1, characterized in that, The mounting plate (21) has two rectangular slots (211) that are symmetrical to each other. The mounting plate (21) has two sliding grooves (22) that are slidably provided in the inner cavity of each sliding groove (22). The two sliding grooves (221) are symmetrical to each other. The two sliding grooves (221) are provided with a return spring (222) and the other end of the two return springs (222) is provided in the inner wall of the sliding groove (22).

6. The stainless steel pipe inner tube polishing equipment according to claim 5, characterized in that, Each of the two movable sliders (221) is provided with a connecting rod (23) at one end away from the movable slide (22), and a placement block (24) is provided at one end of the two connecting rods (23) away from the movable sliders (221). The two ends of the placement block (24) are provided on the placement rack (241).

7. A stainless steel pipe inner tube polishing device according to claim 6, characterized in that, The connecting rod (23) is provided with a connecting rod (231), and the other end of the connecting rod (231) is provided with a special-shaped mounting bracket (232), and the special-shaped mounting bracket (232) is provided with a drive plate (26).

8. The stainless steel pipe inner tube polishing equipment according to claim 1, characterized in that, The mounting plate (21) is provided with two fixing blocks (5), and the two fixing blocks (5) are provided with mounting bearings (51) on opposite side walls. The two mounting bearings (51) are provided with rotating rods (512), the two rotating rods (512) are symmetrical to each other, and the opposite ends of the two rotating rods (512) are provided with arc-shaped mounting plates (32).

9. A stainless steel pipe inner tube polishing device according to claim 8, characterized in that, A cam (52) is provided on the rotating rod (512), and a torsion spring (53) is provided on the rotating rod (512). The two ends of the torsion spring (53) are respectively provided on the side wall opposite to the cam (52) and the mounting bearing (51). A drive plate (26) is attached to the upper end of the cam (52).

10. A stainless steel pipe inner tube polishing device according to claim 1, characterized in that, The arc-shaped mounting plate (32) is provided with an arc-shaped sliding groove (321). An upper sliding block (322) and a lower sliding block (323) are slidably arranged in the inner cavity of the arc-shaped sliding groove (321). An electric push rod (31) is provided at the upper end of the upper sliding block (322), and the end of the lower sliding block (323) away from the arc-shaped sliding groove (321) is provided on the mounting plate (21).

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