Stainless steel pipe inner wall polishing equipment

Abstract

The invention relates to the technical field of stainless steel pipe machining, in particular to stainless steel pipe inner wall polishing equipment which comprises a base table, a clamping assembly and a polishing assembly. The polishing assembly comprises a supporting plate arranged on the base table in a sliding mode, a first motor fixedly arranged on the supporting plate, a polishing wheel coaxially fixed to an output shaft of the first motor and a power piece driving the supporting plate to slide. The clamping assembly comprises a clamping wheel located above the base table and a third driving piece used for driving the clamping wheel to move up and down. A first supporting wheel and a second supporting wheel which are located below the clamping wheel are arranged on the base table, a support is arranged on the side face of the base table, a feeding sliding way inclining downwards in the direction close to the base table is fixedly arranged on the support, and a first baffle and a second baffle are arranged above the feeding sliding way side by side. A first power source and a second power source for respectively driving the first baffle and the second baffle to move up and down are fixedly arranged on the bracket; and automatic feeding of the stainless steel pipes is achieved, and the polishing equipment meets the large-batch production requirement.

Description

Technical Field

[0001] The present application relates to the technical field of stainless steel pipe processing, and in particular to a stainless steel pipe inner wall polishing device. Background Art

[0002] In the vast field of stainless steel product processing, stainless steel pipes have become an indispensable element in many industries such as construction, chemical industry, and food due to their excellent corrosion resistance and elegant appearance. However, to maintain the high finish and continuous corrosion resistance of the inner wall of the pipe, the polishing process plays a vital role. This is not only related to the final quality of the product, but also directly affects its performance and life in various application scenarios.

[0003] In the current market, a common stainless steel pipe inner wall polishing machine has an exquisite design, which integrates core components such as the base, polishing assembly and clamping assembly. The polishing assembly achieves fine polishing of the inner wall of the steel pipe through the synergy of the polishing wheel and the drive motor, as well as the precise control of the motor screw structure. At the same time, the clamping assembly uses a clever combination of clamping wheels, cylinders and support wheels to ensure stable clamping and precise positioning during the polishing process.

[0004] However, in actual operation, a significant technical bottleneck gradually emerged: at the beginning of the polishing operation, that is, the feeding of steel pipes, it is often necessary to manually carry the heavy steel pipes and accurately place them on the support wheels. This process is not only time-consuming and labor-intensive, but also greatly slows down the overall polishing efficiency and becomes a key factor restricting the large-scale processing capacity. Faced with the growing market demand and the continuous improvement of production standards, the existing manual feeding method obviously can no longer meet the requirements of efficient and automated production, and there is room for improvement. Summary of the invention

[0005] The purpose of this application is to provide a stainless steel pipe inner wall polishing device to solve the problem that the above-mentioned polishing machine has low efficiency when feeding and cannot meet the needs of large-scale processing.

[0006] The present application provides a stainless steel pipe inner wall polishing device adopts the following technical solution: The control wheel that is located at the rotation point of the steering wheel and the control wheel rotation state is vertically aligned with the rotation axis of the steering wheel, and the rotation of the steering wheel is vertically aligned with the rotation axis of the steering wheel.

[0007] By adopting the above technical solution, during the feeding process, the steel pipes on the feeding slide can slide one by one into the position between the first support wheel and the second support wheel through the combination of the first baffle and the second baffle, thereby realizing automatic feeding of the stainless steel pipes, thereby improving the overall polishing efficiency of the stainless steel pipes, and enabling the polishing equipment to meet the needs of mass production.

[0008] Optionally, a receiving plate is provided on the base, and a first driving member and a second driving member are fixed on the receiving plate for respectively driving the first supporting wheel and the second supporting wheel to move up and down.

[0009] By adopting the above technical solution, due to the combined arrangement of the first drive member and the second drive member, the installation height of the first support wheel and the second support wheel can be adjusted, so that the stainless steel pipe on the loading chute can slide more conveniently between the first support wheel and the second support wheel.

[0010] Optionally, a support arm is fixedly provided on the supporting plate in the vertical direction, and a support plate located above the first support wheel and the second support wheel is fixedly provided on the upper end of the support arm. The third driving member is a vertical cylinder fixedly provided on the support plate, and the lower end of the vertical cylinder passes through the support plate and is fixedly connected to the clamping wheel.

[0011] By adopting the above technical solution, due to the combined arrangement of the support arm and the vertical cylinder, the height adjustment of the clamping wheel is achieved, which facilitates the clamping wheel to tighten the steel pipe between the first support wheel and the second support wheel.

[0012] Optionally, the receiving plate is slidably disposed on the upper surface of the base, and the sliding directions of the receiving plate and the support plate are perpendicular. A driving electric cylinder is fixed on the base to drive the receiving plate to slide back and forth toward the bracket.

[0013] By adopting the above technical solution, the horizontal installation position of the receiving plate can be adjusted. When loading is required, the clamping assembly can be driven by the electric cylinder to slide in the direction close to the loading slideway, which is convenient for loading the stainless steel pipe.

[0014] Optionally, a guide rail is fixedly provided on the base, and a guide groove for the guide rail to be inserted and slide is provided on the bottom side of the receiving plate.

[0015] By adopting the above technical solution, during the sliding process of the supporting plate relative to the upper surface of the base, due to the combined arrangement of the guide rail and the guide groove, the guide rail on the base slides and is inserted into the guide groove on the supporting plate, thereby improving the stability of the supporting plate during sliding.

[0016] Optionally, a material discharge chute located below the material loading chute is fixedly provided on the bracket, and the material discharge chute is inclined downward in a direction away from the base.

[0017] By adopting the above technical solution, after the stainless steel pipe is polished, due to the installation setting of the unloading chute, the relative height of the first support wheel and the second support wheel can be adjusted by the first driving member and the second driving member, so that the polished stainless steel pipe can slide onto the unloading chute, thereby realizing automatic unloading of the stainless steel pipe and improving the overall processing efficiency of the stainless steel pipe.

[0018] Optionally, a chip removal assembly is provided on the base, and the chip removal assembly includes a chip removal wheel located above the base and a second motor fixed on the upper surface of the support plate, and the second motor is coaxially fixedly connected to the chip removal wheel; a limiting assembly is provided on the unloading slide for clamping a single steel pipe when unloading, and when the polishing wheel is inserted into the clamped steel pipe, the chip removal wheel is synchronously inserted into the steel pipe in a clamped state on the unloading slide.

[0019] By adopting the above technical solution, when the stainless steel pipe is clamped and the previous polished steel pipe is also clamped by the limit assembly on the unloading chute, the chip removal wheel can be inserted into the steel pipe in the clamped state on the unloading chute, and the polishing wheel can also be inserted into the steel pipe to be polished at the same time, so that the steel pipe can be polished and chip removed at the same time, reducing the time required for subsequent chip removal of the stainless steel pipe, and further improving the overall processing efficiency of the stainless steel pipe.

[0020] Optionally, the limiting assembly includes a first blocking plate and a second blocking plate located below the unloading chute and arranged side by side, and the bracket is fixed with a first driving source and a second driving source for driving the first blocking plate and the second blocking plate to move up and down; the unloading chute is provided with a first blocking hole and a second blocking hole for the first blocking plate and the second blocking plate to pass through, and the bottom side surface of the loading chute is provided with a limiting through hole for the second baffle to pass through; the lower side surface of the second baffle plate passing through the limiting through hole can be tightly pressed against the upper side surface of the steel pipe between the first blocking plate and the second blocking plate.

[0021] By adopting the above technical solution, when the steel pipe that has just been polished is on the unloading chute and is limited by the first baffle plate and the second baffle plate, the lower side surface of the second baffle plate passing through the limiting hole can be pressed against the upper side surface of the steel pipe between the first baffle plate and the second baffle plate; it not only realizes the automatic loading and unloading of the steel pipes one by one, but also simultaneously clamps and limits the steel pipes on the unloading chute, which is convenient for subsequent chip removal.

[0022] Optionally, an elastic abutment pad is fixedly provided on the side of the second baffle plate close to the unloading chute, and the elastic abutment pad is provided with anti-slip grooves.

[0023] By adopting the above technical solution, when the lower side of the second baffle plate is pressed against the upper side of the steel pipe between the first baffle plate and the second baffle plate, the stability of the lower side edge of the second baffle plate when it abuts against the stainless steel pipe is improved due to the provision of the elastic abutment pad on the lower side of the second baffle plate.

[0024] Optionally, guide slopes are provided on the side edges of the first baffle plate and the second baffle plate, and guide slopes are provided on the opening edges of the limiting through holes.

[0025] By adopting the above technical solution, it is convenient to insert the first blocking plate and the second blocking plate into the corresponding first blocking hole and the second blocking hole, and it is also convenient to insert the second baffle into the limiting through hole, thereby improving the corresponding use performance.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. During the feeding process, the steel pipes on the feeding slide can slide into the position between the first support wheel and the second support wheel one by one through the combination of the first baffle and the second baffle, so as to realize the automatic feeding of the stainless steel pipe, thereby improving the overall polishing efficiency of the stainless steel pipe, so that the polishing equipment can meet the needs of mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a partial structural schematic diagram of the installation and coordination of the polishing assembly in the embodiment of the present application; Figure 3 It is a partial structural schematic diagram of the installation and matching of the clamping assembly in the embodiment of the present application; Figure 4 It is a partial structural schematic diagram of the installation and coordination of the feeding assembly in the embodiment of the present application; Figure 5 It is a partial cross-sectional structural schematic diagram of the installation and coordination of the feeding assembly in the embodiment of the present application; Figure 6 It is a partial structural schematic diagram of the installation and coordination of the blanking assembly in the embodiment of the present application; Figure 7 It is a partial cross-sectional structural schematic diagram of the installation and coordination of the blanking assembly in the embodiment of the present application; Figure 8 yes Figure 7 Enlarged schematic diagram of part A.

[0029] In the figure, 1, base; 11, guide rail; 2, clamping assembly; 21, clamping wheel; 22, third driving member; 221, vertical cylinder; 23, first supporting wheel; 24, second supporting wheel; 25, receiving plate; 251, supporting arm; 252, supporting plate; 253, guiding slide; 26, first driving member; 27, second driving member; 28, driving electric cylinder; 3, polishing assembly; 31, supporting plate; 32, first motor; 33, power member; 34, polishing wheel; 4, bracket; 5, feeding assembly; 51, feeding slide; 511, limiting through hole; 5111, guiding slope; 52, first baffle; 53, second baffle; 531, elastic abutment pad; 54, first power source; 55, second power source; 6, unloading assembly; 61, unloading slide; 611, first blocking hole; 612, second blocking hole; 62, collecting box; 7, chip removal assembly; 71, chip removal wheel; 72, second motor; 8, limiting assembly; 81, first blocking plate; 811, guiding slope; 82, second blocking plate; 83, first driving source; 84, second driving source. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0031] Reference Figure 1 and Figure 2 A stainless steel pipe inner wall polishing device includes a base 1, a clamping assembly 2 and a polishing assembly 3, wherein the polishing assembly 3 includes a support plate 31 slidably mounted on the base 1, a first motor 32 fixedly mounted on the support plate 31, a polishing wheel 34 coaxially fixed with an output shaft of the first motor 32, and a power member 33 driving the support plate 31 to slide, wherein the power member 33 is a conventional motor screw structure, which will not be described in detail herein; The clamping assembly 2 includes a clamping wheel 21 located above the base 1, and a third driving member 22 for driving the clamping wheel 21 to move up and down. The base 1 is provided with a first supporting wheel 23 and a second supporting wheel 24 located below the clamping wheel 21; When the polishing device is used, the stainless steel pipe is placed on the first support wheel 23 and the second support wheel 24 in advance, and then the clamping wheel 21 is driven downward by the third power member 33 to clamp the placed steel pipe, and finally the polishing assembly 3 is used for processing.

[0032] Reference Figure 2 and Figure 3 The base 1 is also provided with a receiving plate 25 which is slidably provided, and the receiving plate 25 is perpendicular to the sliding direction of the support plate 31, and a driving electric cylinder 28 is fixedly provided on the base 1 to drive the receiving plate 25 to slide back and forth; the receiving plate 25 is fixedly provided with a first driving member 26 and a second driving member 27 which respectively drive the first support wheel 23 and the second support wheel 24 to move up and down, wherein the first driving member 26 and the second driving member 27 are both vertically arranged cylinders, which will not be described in detail here; A support arm 251 is fixedly provided on the receiving plate 25 in the vertical direction, and a support plate 252 located above the first support wheel 23 and the second support wheel 24 is fixedly provided on the upper end of the support arm 251. The third driving member 22 is a vertical cylinder 221 fixedly provided on the support plate 252, and the lower end of the vertical cylinder 221 penetrates the support plate 252 and is fixedly connected to the clamping wheel 21; The guide rail 11 is fixedly arranged on the base 1 , wherein a guide groove 253 for the guide rail 11 to be inserted and slide is provided on the bottom side of the receiving plate 25 , so as to improve the stability of the guide rail 11 during the sliding process.

[0033] Reference Figure 4 and Figure 5A bracket 4 is provided on the side of the base 1, wherein a loading assembly 5 and a unloading assembly 6 are provided on the bracket 4, wherein the loading assembly 5 is fixedly mounted on a loading slide 51 on the support frame, and the loading slide 51 is arranged downwardly inclined in a direction close to the base 1, and the steel pipe on the loading slide 51 can slide between the first support wheel 23 and the second support wheel 24; a first baffle 52 and a second baffle 53 are arranged side by side above the loading slide 51, and the second baffle 53 is located on the side of the first baffle 52 away from the base 1, and a gap for limiting the position of a single steel pipe is preset between the first baffle 52 and the second baffle 53; The bracket 4 is fixed with a first power source 54 and a second power source 55 that respectively drive the first baffle plate 52 and the second baffle plate 53 to move up and down, wherein the first power source 54 and the second power source 55 are also located above the feeding slide 51, and the first power source 54 and the second power source 55 are conventional electric cylinders, which are not described in detail here; when the stainless steel pipe is fed, the first baffle plate 52 is moved downward in advance to abut against the upper surface of the feeding slide 51, and there is still a gap between the second baffle plate 53 and the upper surface of the feeding slide 51, and a number of stainless steel pipes are placed on the feeding slide 51. At this time, the stainless steel pipe on the lowermost side can slide downward to abut against the side of the first baffle plate 52 close to the second baffle plate 53, and then the second baffle plate 53 is moved down to abut against the upper surface of the feeding slide 51; Then control the receiving plate 25 to slide in the direction close to the feeding slide 51, then raise the height of the first support wheel 23 and the second support wheel 24, and then move the first baffle 52 upward to slide the lowermost stainless steel pipe to the upper side of the first support wheel 23 and the second support wheel 24; adjust the position of the clamped stainless steel pipe to be coaxially arranged with the polishing wheel 34; then, first move the first baffle 52 downward, and then move the second baffle 53 upward to re-feed the stainless steel pipe, and finally move the second baffle 53 downward again, and repeat this cycle to constitute an automatic feeding process of the stainless steel pipe.

[0034] Reference Figure 5 and Figure 6 The unloading assembly 6 includes an unloading chute 61 fixed on the bracket 4 and a collecting box 62 located below the lower end of the unloading chute 61, wherein the unloading chute 61 is located below the loading chute 51, and the unloading chute 61 is inclined downward in a direction away from the base 1; when the stainless steel pipe is polished, the relative height of the first support wheel 23 and the second support wheel 24 can be adjusted so that the clamped stainless steel pipe slides onto the unloading chute 61 to realize automatic unloading.

[0035] Reference Figure 6 and Figure 7A chip removal assembly 7 is provided on the base 1, wherein the chip removal assembly 7 includes a chip removal wheel 71 located above the base 1, a second motor 72 fixedly arranged on the upper surface of the support plate 31, and the output shaft of the second motor 72 is coaxially fixedly connected with the chip removal wheel 71; a limit assembly 8 for clamping a single steel pipe when unloading is provided on the unloading slide 61; the outer periphery of the chip removal wheel 71 is coated with cotton yarn, which can effectively remove chips from the inner wall of the steel pipe that has just been polished; When the stainless steel pipe is clamped and the last polished steel pipe is clamped by the limit assembly 8 on the unloading chute 61, the chip removal wheel 71 can be inserted into the steel pipe in the clamped state on the unloading chute 61, and the polishing wheel 34 can also be inserted into the steel pipe to be polished at the same time, so that the steel pipe can be polished and chip removed at the same time.

[0036] Reference Figure 7 The limiting assembly 8 includes a first blocking plate 81 and a second blocking plate 82 located below the unloading chute 61, wherein the bracket 4 is fixedly provided with a first driving source 83 and a second driving source 84 for driving the first blocking plate 81 and the second blocking plate 82 to move up and down, wherein the first driving source 83 and the second driving source 84 are cylinders located below the unloading chute 61 and arranged in the vertical direction, which will not be described in detail here; the unloading chute 61 is provided with a first blocking hole 611 and a second blocking hole 612 for the first blocking plate 81 and the second blocking plate 82 to pass through, and the bottom side surface of the loading chute 51 is provided with a limiting through hole 511 for the second baffle plate 53 to pass through; When the steel pipe that has just been polished is on the unloading chute 61 and is limited by the first baffle plate 81 and the second baffle plate 82, the lower side surface of the second baffle plate 53 passing through the limiting hole 511 can be pressed against the upper side surface of the steel pipe between the first baffle plate 81 and the second baffle plate 82, thereby limiting the steel pipe on the unloading chute 61 and facilitating subsequent chip removal.

[0037] Reference Figure 7 and Figure 8 An elastic abutment pad 531 made of rubber is fixedly arranged on the side of the second baffle plate 53 close to the unloading chute 61, and an anti-slip pattern is formed on the elastic abutment pad 531 to improve the stability of the lower side edge of the second baffle plate 53 when it abuts against the stainless steel pipe; A guide slope 811 is arranged on the side edges of the first blocking plate 81 and the second blocking plate 82, wherein a guide slope 5111 is arranged on the opening edge of the limiting through hole 511; this facilitates the first blocking plate 81 and the second blocking plate 82 to be inserted into the corresponding first blocking hole 611 and the second blocking hole 612, and also facilitates the second baffle plate 53 to be inserted into the limiting through hole 511.

[0038] The implementation principle of the embodiment of the present application is: When the polishing device is used, the steel pipe on the loading slide 51 slides onto the first supporting wheel 23 and the second supporting wheel 24, and then the clamping wheel 21 is driven downward by the third power member 33 to clamp the placed steel pipe, and the position of the clamped stainless steel pipe is adjusted so that it is coaxially arranged with the polishing wheel 34, and the polishing assembly 3 is used for processing; When the stainless steel pipe is polished, the position of the receiving plate 25 is adjusted, and the relative heights of the first supporting wheel 23 and the second supporting wheel 24 are adjusted at the same time, so that the clamped stainless steel pipe can slide onto the unloading slideway 61, and then the limit assembly 8 is used to clamp the polished steel pipe; When the next stainless steel pipe is clamped and the previous polished steel pipe is clamped by the limit assembly 8 on the unloading chute 61, the chip removal wheel 71 can be inserted into the steel pipe in the clamped state on the unloading chute 61, and the polishing wheel 34 can also be inserted into the steel pipe to be polished at the same time, so that the steel pipe can be polished and chip removed at the same time; after chip removal is completed, the steel pipe continues to slide downward along the unloading chute 61 to the collection box 62, and the cycle is repeated.

[0039] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stainless steel pipe inner wall polishing device, comprising a base (1), a clamping assembly (2) and a polishing assembly (3), wherein the polishing assembly (3) comprises a support plate (31) slidably mounted on the base (1), a first motor (32) fixedly mounted on the support plate (31), a polishing wheel (34) coaxially fixed to an output shaft of the first motor (32), and a power member (33) for driving the support plate (31) to slide; the clamping assembly (2) comprises a clamping wheel (21) located above the base (1), and a third driving member (22) for driving the clamping wheel (21) to move up and down; It is characterized in that The base (1) is provided with a first supporting wheel (23) and a second supporting wheel (24) located below the clamping wheel (21); a bracket (4) is provided on the side of the base (1); a loading slide (51) is fixedly provided on the bracket (4) and is inclined downward in a direction close to the base (1); and the steel pipe on the loading slide (51) can slide between the first supporting wheel (23) and the second supporting wheel (24); A first baffle (52) and a second baffle (53) are arranged side by side above the loading slideway (51), a gap for limiting the position of a single steel pipe is preset between the first baffle (52) and the second baffle (53), and a first power source (54) and a second power source (55) are fixed on the bracket (4) for respectively driving the first baffle (52) and the second baffle (53) to move up and down.

2. A stainless steel pipe inner wall polishing device according to claim 1, characterized in that: A receiving plate (25) is provided on the base (1), and a first driving member (26) and a second driving member (27) are fixedly provided on the receiving plate (25) for respectively driving the first supporting wheel (23) and the second supporting wheel (24) to move up and down.

3. A stainless steel pipe inner wall polishing device according to claim 2, characterized in that: A support arm (251) is fixedly provided on the receiving plate (25) in the vertical direction, and a support plate (252) located above the first support wheel (23) and the second support wheel (24) is fixedly provided at the upper end of the support arm (251). The third driving member (22) is a vertical cylinder (221) fixedly provided on the support plate (252), and the lower end of the vertical cylinder (221) penetrates the support plate (252) and is fixedly connected to the clamping wheel (21).

4. A stainless steel pipe inner wall polishing device according to claim 3, characterized in that: The receiving plate (25) is slidably arranged on the upper surface of the base (1), and the sliding direction of the receiving plate (25) is perpendicular to that of the support plate (31). A driving electric cylinder (28) is fixedly arranged on the base (1) to drive the receiving plate (25) to slide back and forth in a direction close to the bracket (4).

5. The stainless steel pipe inner wall polishing device according to claim 4, characterized in that: The base (1) is fixedly provided with a guide rail (11), and the bottom side of the receiving plate (25) is provided with a guide groove (253) for the guide rail (11) to be inserted and slide.

6. The stainless steel pipe inner wall polishing device according to claim 2, characterized in that: The support (4) is fixedly provided with a material discharge chute (61) located below the material discharge chute (51), and the material discharge chute (61) is inclined downward in a direction away from the base (1).

7. The stainless steel pipe inner wall polishing device according to claim 6, characterized in that: The base (1) is provided with a chip removal assembly (7), the chip removal assembly (7) comprising a chip removal wheel (71) located above the base (1), and a second motor (72) fixedly arranged on the upper surface of the support plate (31), the second motor (72) being coaxially fixedly connected to the chip removal wheel (71); The unloading chute (61) is provided with a limit assembly (8) for clamping a single steel pipe when unloading. When the polishing wheel (34) is inserted into the clamped steel pipe, the chip removal wheel (71) is synchronously inserted into the steel pipe in a clamped state on the unloading chute (61).

8. The stainless steel pipe inner wall polishing device according to claim 7, characterized in that: The limiting assembly (8) comprises a first blocking plate (81) and a second blocking plate (82) which are located below the unloading slideway (61) and are arranged side by side, and a first driving source (83) and a second driving source (84) which are used to drive the first blocking plate (81) and the second blocking plate (82) to move up and down are fixedly arranged on the bracket (4); The unloading chute (61) is provided with a first blocking hole (611) and a second blocking hole (612) for the first blocking plate (81) and the second blocking plate (82) to pass through, and the bottom side surface of the loading chute (51) is provided with a limiting through hole (511) for the second baffle plate (53) to pass through; the lower side surface of the second baffle plate (53) passing through the limiting through hole (511) can be tightly pressed against the upper side surface of the steel pipe between the first blocking plate (81) and the second blocking plate (82).

9. The stainless steel pipe inner wall polishing device according to claim 8, characterized in that: An elastic abutment pad (531) is fixedly provided on the side of the second baffle (53) close to the unloading chute (61), and the elastic abutment pad (531) is provided with anti-slip grooves.

10. The stainless steel pipe inner wall polishing device according to claim 8, characterized in that: A guiding inclined surface (811) is provided on the side edges of the first blocking plate (81) and the second blocking plate (82), and a guiding inclined surface (5111) is provided on the opening edge of the limiting through hole (511).

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