A stainless steel tube inner wall polishing equipment

Abstract

The utility model discloses a stainless steel pipe inner wall polishing equipment, including the chassis, the symmetrical mounting ring of left and right is fixed on the chassis, every group mounting ring is evenly inserted and is equipped with a plurality of small -size air cylinders, the L type moving frame of top strip -shaped hole is provided in the chassis, the strip -shaped hole of L type moving frame is slidably provided with first tooth plate, another end of first tooth plate is provided with auxiliary extension assembly, the utility model discloses setting auxiliary extension assembly, adopts the mode of snap -on and quick bilateral locking and fixes, can with first tooth plate quick butt joint and fixed of second tooth plate, and can be in the second tooth plate rearwards in proper order and fixed a plurality of same second tooth plate, to utilize second tooth plate extension first tooth plate's overall length, thereby can to the overall in -depth distance of polishing bar in the stainless steel pipe, to the self -adaptation extension of adapting different length's stainless steel pipe, the inner wall of long stainless steel pipe is polished conveniently.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe processing technology, and in particular to a stainless steel pipe inner wall polishing device. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material, widely used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components. Furthermore, it is lighter in weight while maintaining the same bending and torsional strength, making it widely used in manufacturing mechanical parts and engineering structures. When processing stainless steel pipes, internal polishing equipment is needed to polish the inner wall. Traditional stainless steel pipe internal polishing equipment requires inserting a grinding rod deep into the stainless steel pipe. However, the overall depth of this equipment is limited, and it cannot adapt to the length of the stainless steel pipe, making it impossible to polish the inner wall of longer stainless steel pipes. This significantly increases the limitations of the equipment and simultaneously reduces its polishing effect.

[0003] To address the aforementioned problems, this utility model provides improvements. Summary of the Invention

[0004] This utility model proposes a stainless steel pipe inner wall polishing device, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: A stainless steel pipe inner wall polishing device includes a base frame, on which mounting rings are symmetrically fixed. Multiple sets of small cylinders are evenly embedded in each set of mounting rings. The piston rods of the small cylinders are fixed to pressure plates that fix the stainless steel pipes. An L-shaped movable frame with a strip-shaped hole at the top is provided inside the base frame. A first toothed plate is slidably disposed within the strip-shaped hole of the L-shaped movable frame. A first motor is fixed to the front of the L-shaped movable frame. A gear meshing with the first toothed plate is fixed to the end of the output shaft of the first motor. A second motor is fixed to one end of the first toothed plate. A fixing frame is fixed to the end of the output shaft of the second motor. A sliding plate is slidably disposed within the fixing frame. A pressure plate for fixing the stainless steel pipe is fixed to the top of the sliding plate. The polishing rod for polishing the inner wall of the tube has an auxiliary extension component at the other end of the first toothed plate. The auxiliary extension component includes a second toothed plate that fits against the other end of the first toothed plate. The left side of both the first and second toothed plates has a strip-shaped insertion hole. The right side of the second toothed plate has an auxiliary insertion plate that is inserted into the strip-shaped insertion hole. The left side of the front and back sides of the first and second toothed plates has an auxiliary groove. A flip-back frame is rotatably installed in each set of auxiliary grooves. The auxiliary insertion plate has symmetrical arc-shaped slots for inserting the flip-back frame. A push frame is slidably installed in each set of flip-back frames. The side wall of the inner cavity of the auxiliary groove has a snap-fit ​​groove for inserting the push frame. A first spring is fixed between the push frame and the right side of the inner cavity of the flip-back frame.

[0006] The stainless steel pipe inner wall polishing equipment described above further includes: a push plate that is slidably disposed in each group of arc-shaped channels and is attached to the flipping back frame on the outside; a second spring is fixed between the push plate and the inner side of the arc-shaped channel cavity; and one end of the flipping back frame inserted into the arc-shaped channel has an arc-shaped structure.

[0007] The stainless steel pipe inner wall polishing equipment described above further includes: mutually fitted sliding strips fixed on both the first toothed plate and the second toothed plate; a reinforced top frame fixed at the top of the L-shaped movable frame; and symmetrically fixed diagonal tie rods on one side of the top of the reinforced top frame; one end of the diagonal tie rod is fixed to a fixed slide rail that is slidably arranged on one of the sliding strips via a side block.

[0008] The stainless steel pipe inner wall polishing equipment described above further includes: a vertical slide rail on the right side of the fixed frame; a slide frame that passes through the vertical slide rail and is slidably mounted on the right side of the fixed frame is fixed at the bottom of the right side of the slide plate; a positioning frame is inserted on the slide frame; a third spring is fixed between the slide frame and the positioning frame; and multiple sets of positioning holes for the positioning frame to be inserted are sequentially opened along the vertical direction on the right side of the fixed frame.

[0009] The stainless steel pipe inner wall polishing equipment described above further includes: an electric slide rail base fixed inside the base frame, and the electric slide rail base being fixed to the right side of the bottom of the L-shaped movable frame via a slide base.

[0010] The stainless steel pipe inner wall polishing equipment described above is further characterized by: an L-shaped anti-deviation frame fixed on the left side of the bottom of the L-shaped movable frame, which is located below the electric slide rail slide block, with one end of the L-shaped anti-deviation frame penetrating the base frame and extending to the right.

[0011] The stainless steel pipe inner wall polishing equipment described above is further characterized by each set of push frames having an L-shaped structure.

[0012] In summary, the beneficial effects of this utility model are as follows: 1. This utility model adopts an auxiliary extension component and a snap-fit ​​and quick double-sided locking and fixing method, which can quickly connect and fix the second toothed plate to the first toothed plate. Multiple sets of identical second toothed plates can be snapped and fixed sequentially behind the second toothed plate, so as to use the second toothed plate to quickly extend the overall length of the first toothed plate. This allows for adaptive extension of the overall depth of the grinding rod inside the stainless steel tube, so as to adapt to stainless steel tubes of different lengths. This facilitates the use of polishing equipment to grind and polish the inner wall of longer stainless steel tubes, greatly reducing the overall limitations of the equipment and simultaneously improving the polishing effect of the equipment.

[0013] 2. By setting a second spring, this utility model can provide a continuous pushing force to the push plate, so as to provide a counter-pushing force to the flipping back frame, thereby making the push frame and the locking groove more securely engaged and preventing them from falling off. It can also help the flipping back frame pop out from the auxiliary groove, making it convenient to quickly release the locking state of the auxiliary insert plate.

[0014] 3. By setting up a slider, a tie rod, and a fixed slide rail, this utility model can slide and limit the first toothed plate and the second toothed plate, which improves the stability of the first toothed plate and the second toothed plate when they move. The tie rod can ensure the stability of the fixed slide rail and prevent it from falling, so as to better ensure the stability of the first toothed plate and the second toothed plate when they move.

[0015] 4. This utility model, by setting up a slide, a positioning frame, a third spring and multiple sets of positioning holes, forms a quick-locking structure for the slide plate, which allows the slide plate to be quickly and self-locked after the vertical position is adjusted. This allows the position of the polishing rod to be adjusted to fit stainless steel tubes with different inner diameters, thus improving the polishing effect on stainless steel tubes.

[0016] 5. This utility model, by setting an electric slide rail slide seat, allows for overall adjustment of the position of the L-shaped moving frame, thereby facilitating the fixing of stainless steel tubes of different lengths and keeping the stainless steel tubes in a centered position, thus improving the positioning stability of the stainless steel tubes.

[0017] 6. This utility model improves the stability of the electric slide rail slide by setting an L-shaped anti-deviation frame to limit and support the sliding of the electric slide rail slide.

[0018] 7. This utility model limits the shape of the push frame to facilitate its movement and makes it easy to quickly separate the push frame from the snap-fit ​​groove. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A magnified schematic diagram of the partial three-dimensional structure of A in the middle; Figure 3 This is a partial three-dimensional cross-sectional view of the present invention; Figure 4 for Figure 3 A magnified schematic diagram of the partial three-dimensional structure of B in the diagram; Figure 5 This is a bottom view of a partial three-dimensional structure of the present invention; Figure 6 This is a partial three-dimensional exploded view of the present invention.

[0021] In the diagram: 1. Base frame, 2. Mounting ring, 3. Small cylinder, 4. L-shaped moving frame, 5. Electric slide rail, 6. L-shaped anti-deviation frame, 7. First motor, 8. Gear, 9. First toothed plate, 10. Diagonal tie rod, 11. Fixed slide rail, 12. Slide bar, 13. Second motor, 14. Fixed frame, 15. Slide plate, 16. Grinding rod, 17. Slide car, 18. Third spring, 19. Positioning frame, 20. Auxiliary insert plate, 21. Strip-shaped insert hole, 22. Auxiliary groove, 23. Flipping back frame, 24. First spring, 25. Push frame, 26. Snap-fit ​​groove, 27. Second toothed plate, 28. Arc-shaped locking track, 29. Second spring, 30. Push plate. Detailed Implementation

[0022] The following will refer to the appendix in the embodiments of this utility model. Figure 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0023] A stainless steel pipe inner wall polishing device includes a base frame 1. A controller is installed on the front of the base frame 1. Mounting rings 2 are symmetrically fixed on the base frame 1. Multiple small cylinders 3 are evenly embedded in each mounting ring 2. A pressure plate for fixing the stainless steel pipe is fixed to the piston rod of each small cylinder 3. An L-shaped movable frame 4 with a strip-shaped hole at the top is installed inside the base frame 1. A first toothed plate 9 is slidably installed inside the strip-shaped hole of the L-shaped movable frame 4. A first motor 7 is fixed on the front of the L-shaped movable frame 4. A gear 8 that meshes with the first toothed plate 9 is fixed to the end of the output shaft of the first motor 7. A second motor 13 is fixed to one end of the first toothed plate 9. A fixing frame 14 is fixed to the end of the output shaft of the second motor 13. A sliding plate 15 is slidably installed inside the fixing frame 14. A polishing rod 16 for polishing the inner wall of the stainless steel pipe is fixed to the top of the sliding plate 15. An auxiliary extension assembly is provided at the other end of the toothed plate 9. The auxiliary extension assembly includes a second toothed plate 27 that fits against the other end of the first toothed plate 9. A strip-shaped insertion hole 21 is provided on the left side of both the first toothed plate 9 and the second toothed plate 27. An auxiliary insertion plate 20 is fixed on the right side of the second toothed plate 27 and inserted into the strip-shaped insertion hole 21. An auxiliary groove 22 is provided on the left side of both the front and back sides of the first toothed plate 9 and the second toothed plate 27. A flip-back frame 23 is rotatably installed in each set of auxiliary grooves 22. Arc-shaped slots 28 for inserting the flip-back frame 23 are symmetrically provided on the auxiliary insertion plate 20. A push frame 25 is slidably provided in each set of flip-back frames 23. A snap-fit ​​groove 26 for inserting the push frame 25 is provided on the side wall of the inner cavity of the auxiliary groove 22. A first spring 24 is fixed between the push frame 25 and the right side of the inner cavity of the flip-back frame 23.

[0024] This utility model employs an auxiliary extension component, a flip-up back frame 23, a first spring 24, a push frame 25, a snap-fit ​​groove 26, and an arc-shaped locking channel 28, which forms a double-sided synchronous snap-fit ​​locking structure for the auxiliary insert plate 20. This allows the second toothed plate 27 to be quickly connected and fixed to the first toothed plate 9. Furthermore, multiple identical sets of second toothed plates 27 can be sequentially snapped and fixed behind the second toothed plate 27, so as to quickly extend the overall length of the first toothed plate 9 using the second toothed plate 27. This allows for adaptive extension of the overall depth of the polishing rod 16 inside the stainless steel tube, adapting to stainless steel tubes of different lengths. This facilitates the use of polishing equipment to polish the inner wall of longer stainless steel tubes, greatly reducing the overall limitations of the equipment and simultaneously improving the polishing effect.

[0025] The specific usage process is as follows: The user selects the appropriate number of second toothed plates 27 according to the length of the stainless steel pipe to be polished. Then, the user inserts the auxiliary insert plate 20 at one end of the second toothed plate 27 into the strip-shaped insert hole 21. The user then moves the pusher 25, causing it to retract into the flip back frame 23 and compressing the first spring 24. Simultaneously, the user swings the flip back frame 23 inward, causing it to swing into the auxiliary groove 22 and insert its inner arc-shaped protruding end into the arc-shaped locking channel 28. This simultaneously pushes the push plate 30 inward and compresses the second spring 29 until the pusher 25 moves to the corresponding locking groove 26. At this point, the elastic rebound of the first spring 24 drives the pusher 25 to reset and insert into the locking groove 26. The flip-back frame 23 is fixed, thereby securing the auxiliary insert plate 20. Simultaneously, the counter-force provided by the second spring 29 ensures stable engagement between the push frame 25 and the locking slot 26, allowing for quick fixation of the second toothed plate 27 and the first toothed plate 9. After fixation, the user places the stainless steel tube inside the mounting ring 2 and activates the small cylinder 3 via the controller, causing the pressure plate to move inward and fix the stainless steel tube. The user then activates the first motor 7 and the second motor 13 via the controller. The second motor 13 drives the grinding rod 16 to rotate, and the first motor 7 drives the gear 8 to rotate. The meshing of the gear 8 with the first toothed plate 9 and the second toothed plate 27 drives the first toothed plate 9 and the second toothed plate 27 to move inward into the stainless steel tube. At this time, the rotating polishing rod 16 adheres to the inner wall of the stainless steel tube and polishes the inner wall of the stainless steel tube from all directions as it moves. This utility model adopts an auxiliary extension component, a flip-back frame 23, a first spring 24, a push frame 25, a snap-fit ​​groove 26, and an arc-shaped locking channel 28, which can form a double-sided synchronous snap-fit ​​locking structure for the auxiliary insert plate 20. This allows the second toothed plate 27 to be quickly connected and fixed to the first toothed plate 9. Furthermore, multiple identical sets of second toothed plates 27 can be sequentially snapped and fixed behind the second toothed plate 27, so as to quickly extend the overall length of the first toothed plate 9 using the second toothed plate 27. This allows for adaptive extension of the overall depth of the polishing rod 16 inside the stainless steel tube, adapting to stainless steel tubes of different lengths and facilitating its use. The polishing equipment grinds and polishes the inner wall of long stainless steel pipes, greatly reducing the overall limitations of the equipment and simultaneously improving the polishing effect. Utilizing the elastic rebound of the second spring 29, a continuous pushing force is applied to the push plate 30, which in turn applies a counter-pushing force to the flipping back frame 23, making the push frame 25 and the locking groove 26 more securely engaged, preventing them from easily separating. It also assists in the flipping back frame 23 popping out of the auxiliary groove 22, facilitating quick release of the locking state of the auxiliary insert plate 20. The sliding connection between the slide bar 12 and the fixed slide rail 11 can limit the sliding movement of the first toothed plate 9 and the second toothed plate 27, improving the stability of the first toothed plate 9 and the second toothed plate 27 during movement. The diagonal tie rod 10 ensures the stability of the fixed slide rail 11, preventing it from falling.The design of the slide 17, positioning bracket 19, third spring 18, and multiple sets of positioning holes forms a quick-locking structure for the slide plate 15, allowing it to quickly self-lock after vertical adjustment. This enables adjustment of the position of the polishing rod 16 to accommodate stainless steel tubes of different inner diameters, improving the polishing effect. The design of the electric slide rail 5 allows for overall adjustment of the position of the L-shaped moving frame 4, ensuring that stainless steel tubes of different lengths are centered on the base frame 1, thus improving the positioning stability of the stainless steel tubes. The design of the L-shaped anti-deviation bracket 6 limits and supports the sliding of the electric slide rail 5, improving its stability during movement. The shape of the push frame 25 is defined to facilitate its movement, making it easier to move the push frame. The second toothed plate 25 and the snap-fit ​​groove 26 separate quickly, so an auxiliary extension component is adopted. The design of the flip-back frame 23, the first spring 24, the push frame 25, the snap-fit ​​groove 26, and the arc-shaped locking channel 28 forms a double-sided synchronous snap-fit ​​locking structure for the auxiliary insert plate 20. This allows the second toothed plate 27 to quickly connect and fix to the first toothed plate 9. Multiple identical sets of second toothed plates 27 can be sequentially snapped and fixed behind the second toothed plate 27, allowing the second toothed plate 27 to quickly extend the overall length of the first toothed plate 9. This enables adaptive extension of the overall penetration distance of the grinding rod 16 inside the stainless steel tube, adapting to stainless steel tubes of different lengths. This facilitates the use of polishing equipment to grind and polish the inner wall of longer stainless steel tubes, greatly reducing the overall limitations of the equipment and simultaneously improving the polishing effect.

[0026] Each set of arc-shaped channels 28 has a push plate 30 that is attached to the outside of the flip-up back frame 23. A second spring 29 is fixed between the push plate 30 and the inner side of the inner cavity of the arc-shaped channel 28. The end of the flip-up back frame 23 inserted into the arc-shaped channel 28 has an arc-shaped structure.

[0027] Specifically, by utilizing the elastic rebound of the second spring 29, a pushing force is continuously applied to the push plate 30, which in turn applies a counter-pushing force to the flipping back frame 23, making the push frame 25 and the locking groove 26 more securely engaged, preventing them from easily separating, and also assisting the flipping back frame 23 to pop out from the auxiliary groove 22, making it convenient to quickly release the locking state of the auxiliary insert plate 20.

[0028] Both the first toothed plate 9 and the second toothed plate 27 are fixed with mutually fitting slide bars 12. The top of the L-shaped movable frame 4 is fixed with a reinforcing top frame, and the top of one side of the reinforcing top frame is symmetrically fixed with diagonal tie rods 10. One end of the diagonal tie rod 10 is fixed with a fixed slide rail 11 that is slidably set on one of the slide bars 12 through a side block.

[0029] Specifically, the sliding connection between the slide bar 12 and the fixed slide rail 11 can limit the sliding of the first toothed plate 9 and the second toothed plate 27, improving the stability of the first toothed plate 9 and the second toothed plate 27 when they move, and the diagonal tie rod 10 can ensure the stability of the fixed slide rail 11 and prevent it from falling.

[0030] A vertical slide is provided on the right side of the fixed frame 14. A slide 17 is fixed at the bottom right side of the slide plate 15, passing through the vertical slide and slidably disposed on the right side of the fixed frame 14. A positioning bracket 19 is inserted on the slide 17. A third spring 18 is fixed between the slide 17 and the positioning bracket 19. Multiple sets of positioning holes for the positioning bracket 19 to be inserted are sequentially provided on the right side of the fixed frame 14 in the vertical direction.

[0031] Specifically, the design of the slide 17, positioning bracket 19, third spring 18, and multiple sets of positioning holes can form a quick-locking structure for the slide plate 15, which allows the slide plate 15 to be quickly self-locked after the vertical position is adjusted. This allows the position of the polishing rod 16 to be adjusted to fit stainless steel tubes with different inner diameters, thus improving the polishing effect on the stainless steel tubes.

[0032] An electric slide rail 5 is fixed inside the base frame 1, and the electric slide rail 5 is fixed to the right side of the bottom of the L-shaped movable frame 4 via a slide block.

[0033] Specifically, the design of the electric slide rail 5 allows for overall adjustment of the position of the L-shaped moving frame 4, so that stainless steel tubes of different lengths can be centered on the base frame 1, thereby improving the positioning stability of the stainless steel tubes.

[0034] An L-shaped anti-deviation frame 6 is fixed on the left side of the bottom of the L-shaped movable frame 4, which is located below the electric slide rail 5. One end of the L-shaped anti-deviation frame 6 passes through the base frame 1 and extends to the right.

[0035] Specifically, the L-shaped anti-deviation bracket 6 is designed to limit the sliding of the electric slide rail 5 and provide support for it, thereby improving the stability of the electric slide rail 5 when it moves.

[0036] Each set of pushers 25 has an L-shaped structure.

[0037] Specifically, the shape of the pusher 25 is defined to allow the pusher 25 to be moved, facilitating the quick separation of the pusher 25 and the snap-fit ​​groove 26.

[0038] It should be noted that the functions to be achieved by each hardware component in this utility model are supported by a large number of mature technologies and belong to the prior art. The essence of this utility model is to optimize and combine existing hardware and its connection methods for specific application scenarios to meet the adaptation requirements of specific application scenarios and solve the problems raised in the background technology (without involving improvements to the internal software of the hardware).

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stainless steel pipe inner wall polishing device, comprising a base frame (1), characterized in that: The base frame (1) is symmetrically fixed with mounting rings (2). Each set of mounting rings (2) is uniformly embedded with multiple sets of small cylinders (3). The piston rod of the small cylinder (3) is fixed with a pressure plate for fixing the stainless steel tube. The base frame (1) is provided with an L-shaped moving frame (4) with a strip hole at the top. A first toothed plate (9) is slidably arranged in the strip hole of the L-shaped moving frame (4). A first motor (7) is fixed on the front of the L-shaped moving frame (4). A gear (8) that meshes with the first toothed plate (9) is fixed at the end of the output shaft of the first motor (7). A second motor (13) is fixed at one end of the first toothed plate (9). A fixing frame (14) is fixed at the end of the output shaft of the second motor (13). A sliding plate (15) is slidably arranged in the fixing frame (14). A polishing rod (16) for polishing the inner wall of the stainless steel tube is fixed at the top of the sliding plate (15). An auxiliary extension is provided at the other end of the first toothed plate (9). The extension assembly includes a second toothed plate (27) attached to the other end of the first toothed plate (9). A strip-shaped insertion hole (21) is provided on the left side of both the first toothed plate (9) and the second toothed plate (27). An auxiliary insertion plate (20) inserted into the strip-shaped insertion hole (21) is fixed on the right side of the second toothed plate (27). An auxiliary groove (22) is provided on the left side of both the front and back sides of the first toothed plate (9) and the second toothed plate (27). A flip-back frame (23) is rotatably installed in each set of auxiliary grooves (22). Arc-shaped slots (28) for inserting the flip-back frame (23) are symmetrically provided on the auxiliary insertion plate (20). A push frame (25) is slidably provided in each set of flip-back frames (23). A snap-fit ​​groove (26) for inserting the push frame (25) is provided on the side wall of the inner cavity of the auxiliary groove (22). A first spring (24) is fixed between the push frame (25) and the right side of the inner cavity of the flip-back frame (23).

2. The stainless steel pipe inner wall polishing equipment according to claim 1, characterized in that: Each set of the arc-shaped card slots (28) is slidably provided with a push plate (30) that is attached to the outside of the flip-up back frame (23). A second spring (29) is fixed between the push plate (30) and the inner side of the inner cavity of the arc-shaped card slot (28). The end of the flip-up back frame (23) inserted into the arc-shaped card slot (28) has an arc-shaped structure.

3. The stainless steel pipe inner wall polishing equipment according to claim 1, characterized in that: The first toothed plate (9) and the second toothed plate (27) are both fixed with mutually fitting slide bars (12). The top of the L-shaped moving frame (4) is fixed with a reinforced top frame, and the top of one side of the reinforced top frame is symmetrically fixed with diagonal tie rods (10). One end of the diagonal tie rod (10) is fixed with a fixed slide rail (11) that is slidably set on one of the slide bars (12) through a side block.

4. The stainless steel pipe inner wall polishing equipment according to claim 1, characterized in that: A vertical slide is provided on the right side of the fixed frame (14). A slide frame (17) is fixed at the bottom right side of the slide plate (15) and slides through the vertical slide and is slidably disposed on the right side of the fixed frame (14). A positioning frame (19) is inserted on the slide frame (17). A third spring (18) is fixed between the slide frame (17) and the positioning frame (19). Multiple sets of positioning holes for the positioning frame (19) to be inserted are sequentially opened on the right side of the fixed frame (14) in the up-down direction.

5. The stainless steel pipe inner wall polishing equipment according to claim 1, characterized in that: The base frame (1) is fixed with an electric slide rail (5), which is fixed to the right side of the bottom of the L-shaped mobile frame (4) by means of the slide rail (5).

6. The stainless steel pipe inner wall polishing equipment according to claim 5, characterized in that: The bottom left side of the L-shaped mobile frame (4) is fixed with an L-shaped anti-deviation frame (6) located below the electric slide rail (5). One end of the L-shaped anti-deviation frame (6) passes through the base frame (1) and extends to the right.

7. The stainless steel pipe inner wall polishing equipment according to claim 1, characterized in that: Each of the pushers (25) has an L-shaped structure.

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