Steel pipe surface polishing method

Abstract

The invention discloses a steel pipe surface polishing method which comprises the following steps: step 1, pressing a polishing piece at one position in a polishing assembly, keeping a spring compressed, and inserting a steel pipe to be polished into the middle of polishing equipment; and 2, a motor is started, the motor drives a polishing assembly to rotate, and the surface of the steel pipe is ground and polished through a grinding piece arranged on the polishing assembly. According to the steel pipe surface polishing method, the structure of polishing equipment is simplified, operation is easy, the first polishing piece and the second polishing piece which are rotationally and symmetrically arranged push the polishing pieces to be attached to the surface of the steel pipe needing to be polished under the elastic force action of the spring, and the surface of the steel pipe is polished through pressure. And meanwhile, other power auxiliary equipment does not need to act on the surfaces of the steel pipes in a driving mode, it can be guaranteed that the surfaces of the steel pipes are evenly ground, and the grinding precision of the surfaces of the steel pipes is consistent.

Description

Technical Field

[0001] This invention relates to polishing technology, and more particularly to a method for polishing the surface of steel pipes. Background Technology

[0002] Surface polishing of steel pipes is an important process in the production of seamless steel pipes, before the cold rolling process. Because the steel pipes have different diameters, the position of the polishing equipment needs to be changed, requiring corresponding auxiliary structures. This not only makes the equipment structure overly complex but also inconvenient to maintain.

[0003] CN219337326U discloses a stainless steel pipe polishing machine, which can polish the surface of steel pipes, but its structure is relatively complex and it cannot adaptively adjust the diameter of the steel pipe to be polished, which is not conducive to improving the efficiency of actual processing. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention proposes a method for polishing the surface of steel pipes.

[0005] A method for polishing the surface of a steel pipe, characterized by comprising the following steps: Step 1: Press down on one of the polishing parts in the polishing assembly, keeping the spring compressed, and insert the steel pipe to be polished into the middle of the polishing equipment; Step 2: Start the motor, which drives the polishing assembly to rotate, and polishes the surface of the steel pipe through the grinding parts set on the polishing assembly; The polishing equipment includes a motor, a polishing assembly, and a mounting base. The polishing assembly is located in the middle of the mounting base, the motor is mounted on the mounting base, and the motor has a drive gear. The lower end of the mounting base has symmetrically arranged support gears. The polishing assembly includes a mounting component, a rotating component, a first polishing component, and a second polishing component. The first and second polishing components are located between the mounting component and the rotating component. The mounting component and the rotating component are connected by bolts. The rotating component is meshed with the drive gear. A polishing area is formed between the first and second polishing components. When the first polishing part or the second polishing part is pressed, the area of ​​the polishing area is increased. The first polishing part and the second polishing part are provided with grinding parts, which are located within the polishing area.

[0006] In this invention, the mounting base consists of a base plate and a first mounting plate and a second mounting plate disposed on the base plate, with a mounting area formed between the first mounting plate and the second mounting plate.

[0007] In this invention, a first mounting hole is formed in the middle of the first mounting plate, and a second mounting hole is formed in the middle of the second mounting plate. The inner diameter of the first mounting hole is smaller than the inner diameter of the second mounting hole. The rotating member and the mounting member are disposed in the mounting area and the first mounting hole.

[0008] In this invention, the mounting component consists of a mounting block and symmetrically arranged arc-shaped plates. A first through hole is formed in the middle of the mounting block, and the inner diameter of the first through hole is matched with the area of ​​the polishing area.

[0009] In this invention, the arc-shaped plate is provided with symmetrically arranged mounting grooves, a blocking plate is formed between the mounting grooves, a positioning post is provided on the blocking plate, and a spring is provided on the positioning post.

[0010] In this invention, an installation area is formed between the two sides of the arc-shaped plate, the rotating component is composed of a gear disk and a fixed plate, the fixed plate is disposed in the installation area, a second through hole is formed in the middle of the gear disk, the second through hole is configured to match the area of ​​the polishing area, and the gear disk is meshed with a drive gear.

[0011] In this invention, the first polishing element and the second polishing element are arranged in a rotationally symmetrical manner.

[0012] In this invention, both the first polishing component and the second polishing component are composed of a first arc segment, a second arc segment, and symmetrically arranged mounting arms. The upper ends of the mounting arms are connected, the mounting arms are disposed in the mounting groove, and a clearance area is formed between the mounting arms. The blocking plate is disposed within the clearance area.

[0013] In this invention, the first arc segment is connected to one mounting arm, the second arc segment is connected to another mounting arm, a mounting notch is formed between the first arc segment and the second arc segment, an active area is formed in the middle of the second arc segment, and the active area and the avoidance area are connected.

[0014] In this invention, the second arc-shaped segment is provided with a first fixing groove and a second fixing groove. The grinding component is disposed on the second arc-shaped segment. The grinding component is composed of a grinding plate and a fixing plate. The grinding plate is disposed in the first fixing groove, and the fixing plate is installed in the second fixing groove by bolts.

[0015] The steel pipe surface polishing method of this invention has the following advantages: By simplifying the structure of the polishing equipment, the method is easy to operate. A first and second polishing component, arranged in a rotationally symmetrical manner, are pushed against the surface of the steel pipe to be polished by the elastic force of a spring, thus achieving polishing through pressure. This method can adaptively polish steel pipes of different diameters without requiring additional power auxiliary equipment, ensuring uniform polishing and consistent surface polishing precision. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the polishing equipment of the present invention; Figure 2 for Figure 1 The main view; Figure 3 for Figure 1 The right view; Figure 4 for Figure 1 Exploded view; Figure 5 for Figure 4 A schematic diagram of the rotating component structure in the diagram; Figure 6 for Figure 4 A schematic diagram of the mounting components in the diagram; Figure 7 for Figure 4 A schematic diagram of the grinding component, the first polishing component, and the second polishing component in the diagram; Figure 8 for Figure 7 Front view of the first polished part and the spring; Figure 9 This is a schematic diagram of the installation state of the first polishing component, the second polishing component, and the mounting component in this invention.

[0017] In the diagram: Polishing component 1, First polishing part 2, Second polishing part 3, Polishing area 4, Steel pipe 5, Spring 6, Polishing equipment 7, Motor 8, Mounting base 9, Drive gear 10, Support gear 11, Mounting part 12, Rotating part 13, Bolt 14, Grinding part 15, Base plate 16, First mounting plate 17, Second mounting plate 18, Mounting area 19, First mounting hole 20, Second mounting hole 21, Mounting block 22, Arc plate 23, First through hole 24, Mounting groove 25, Blocking plate 26, Positioning post 27, Gear disk 28, Fixing plate 29, Second through hole 30, First arc segment 31, Second arc segment 32, Mounting arm 33, Avoidance area 34, Mounting notch 35, Moving area 36, ​​Moving clearance 37, First fixing groove 38, Second fixing groove 39, Mounting section 40, Grinding plate 41. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] like Figures 1 to 9 As shown, the steel pipe surface polishing method of the present invention includes the following steps: Step 1: Press one or both polishing parts in polishing assembly 1, namely the first polishing part 2 and / or the second polishing part 3, to increase the area of ​​polishing area 4, thereby facilitating the placement of the steel pipe 5 to be polished. Keeping spring 6 compressed, insert the steel pipe 5 to be polished into the middle of polishing equipment 7.

[0020] Step 2: Start motor 8. Motor 8 drives polishing component 1 to rotate. The surface of steel pipe 5 is polished by grinding parts 15 set on polishing component 1.

[0021] The polishing equipment 7 includes a motor 8, a polishing assembly 1, and a mounting base 9. The polishing assembly 1 is positioned in the center of the mounting base 9, and the motor 8 is mounted on the mounting base 9. The motor 8 is equipped with a drive gear 10, and the lower end of the mounting base 9 is equipped with symmetrically arranged support gears 11. The motor 8 can drive the entire polishing assembly 1 to rotate in the center of the mounting base 9, thereby causing the polishing assembly 1 to rotate around the surface of the steel pipe 5 and perform polishing treatment on the surface of the steel pipe 5.

[0022] The polishing assembly 1 includes a mounting component 12, a rotating component 13, a first polishing component 2, and a second polishing component 3. The first polishing component 2 and the second polishing component 3 are arranged in a rotationally symmetrical manner, allowing them to be fitted together. When they are close to each other, the area of ​​the polishing region 4 increases, while when they are far apart, the area of ​​the polishing region 4 decreases. The first polishing component 2 and the second polishing component 3 are positioned between the mounting component 12 and the rotating component 13, which are connected by bolts 14. The rotating component 13 is meshed with the drive gear 10, and the polishing region 4 is formed between the first polishing component 2 and the second polishing component 3.

[0023] When the first polishing part 2 or the second polishing part 3 is pressed, the area of ​​the polishing region 4 is increased. The first polishing part 2 and the second polishing part 3 are provided with a grinding part 15, which is located within the polishing region 4. The first polishing part 2 and the second polishing part 3 can be pressed by a cylinder. A cylinder (not shown in the figure) is set at the upper end of the first polishing part 2 and the lower end of the second polishing part 3, respectively, so as to push the first polishing part 2 and the second polishing part 3, keeping the first polishing part 2 and the second polishing part 3 separated from each other. Then, under the action of the spring 6, an adaptive pressure is maintained on the surface of the steel pipe 5. As the polishing assembly 1 rotates, it drives the grinding part 15 to perform polishing treatment on the surface of the steel pipe 5.

[0024] The mounting base 9 consists of a base plate 16 and a first mounting plate 17 and a second mounting plate 18 disposed on the base plate 16, forming a mounting area 19 between the first mounting plate 17 and the second mounting plate 18. A first mounting hole 20 is formed in the middle of the first mounting plate 17, and a second mounting hole 21 is formed in the middle of the second mounting plate 18. The inner diameter of the first mounting hole 20 is smaller than the inner diameter of the second mounting hole 21. The rotating member 13 and the mounting member 12 are disposed within the mounting area 19 and the first mounting hole 20.

[0025] Mounting component 12 consists of mounting block 22 and symmetrically arranged arc-shaped plates 23. A first through hole 24 is formed in the middle of mounting block 22, and the inner diameter of the first through hole 24 is set to match the area of ​​polishing area 4.

[0026] The arc-shaped plate 23 has symmetrically arranged mounting grooves 25, and a blocking plate 26 is formed between the mounting grooves 25. The blocking plate 26 has a positioning post 27, and the positioning post 27 has a spring 6. The diameter of the arc-shaped plate 23 is perfectly matched with the inner diameter of the first through hole 24, so that the arc-shaped plate 23 can rotate within the first through hole 24.

[0027] An installation area 19 is formed between the two sides of the arc-shaped plate 23 for mounting and limiting the rotating component 13. The rotating component 13 consists of a gear disk 28 and a fixed plate 29. The fixed plate 29 is disposed within the installation area 19. A second through hole 30 is formed in the middle of the gear disk 28, which is configured to match the area of ​​the polishing area 4. The gear disk 28 meshes with the drive gear 10. Furthermore, the gear disk 28 also meshes with the support gear 11, allowing the support gear 11 to support the gear disk and maintain the rotating component 13 rotating on the support gear 11.

[0028] The inner diameter of the second through hole 30 is larger than that of the rotating part 13, which facilitates the docking and installation between the rotating part 13 and the mounting part 12, and also facilitates the disassembly and replacement of the grinding part 15.

[0029] The first polishing element 2 and the second polishing element 3 are both composed of a first arc-shaped segment 31, a second arc-shaped segment 32, and symmetrically arranged mounting arms 33. The upper ends of the mounting arms 33 are connected to each other. The mounting arms 33 are disposed within the mounting groove 25, and a clearance area 34 is formed between the mounting arms 33. A blocking plate 26 is disposed within the clearance area 34. The mounting arms 33 slide up and down within the mounting groove 25, restricting the position of the first polishing element 2 and the second polishing element 3, thereby changing the area of ​​the polishing area 4.

[0030] The first arc segment 31 is connected to a mounting arm 33, and the second arc segment 32 is connected to another mounting arm 33. An installation notch 35 is formed between the first arc segment 31 and the second arc segment 32. An active area 36 is formed in the middle of the second arc segment 32. The active area 36 and the avoidance area 34 are connected.

[0031] like Figure 9 As shown, the second arc-shaped segment 32 on the first polishing part 2 is disposed within the movable area 36 on the second polishing part 3, and the second arc-shaped segment 32 on the second polishing part 3 is disposed within the movable area 36 on the first polishing part 2, so that the polishing area 4 is formed between the second arc-shaped segment 32 and the second arc-shaped segment 32. Simultaneously, a moving gap 37 is formed between the first arc-shaped segment 31 on the first polishing part 2 and the second arc-shaped segment 32 on the second polishing part 3, and a moving gap 37 is formed between the first arc-shaped segment 31 on the second polishing part 3 and the second arc-shaped segment 32 on the first polishing part 2. The moving positions of the first arc-shaped segment 31 and the second arc-shaped segment 32 are restricted by the arc-shaped plate 23.

[0032] like Figure 8 As shown, a first fixing groove 38 and a second fixing groove 39 are provided on the second arc-shaped segment 32. The grinding component 15 is disposed on the second arc-shaped segment 32 and consists of a grinding plate 41 and a fixing plate 29. The grinding plate 41 is disposed in the first fixing groove 38, and the fixing plate 29 is installed in the second fixing groove 39 by bolts 14. An installation segment 40 is formed on the second arc-shaped segment 32, and the grinding component 15 is disposed on the installation segment 40.

[0033] The inner diameter of the grinding plate 41 of the grinding component 15 is smaller than the inner diameter of the mounting section 40 on the second arc segment 32, so that the grinding plate 41 remains in contact with the surface of the steel pipe 5, while the second arc segment 32 does not contact the surface of the steel pipe 5.

[0034] When replacing, simply remove bolt 14 to replace the grinding part 15. Its structure is compact and ingeniously designed. Compared with the existing technology, its structure is relatively simple and does not have an overly complex structure, which facilitates manufacturing and processing of steel pipe 5.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for polishing the surface of a steel pipe, characterized in that, Includes the following steps: Step 1: Press down on one of the polishing parts in the polishing assembly, keeping the spring compressed, and insert the steel pipe to be polished into the middle of the polishing equipment; Step 2: Start the motor, which drives the polishing assembly to rotate, and polishes the surface of the steel pipe through the grinding parts set on the polishing assembly; The polishing equipment includes a motor, a polishing assembly, and a mounting base. The polishing assembly is located in the middle of the mounting base, the motor is mounted on the mounting base, and the motor has a drive gear. The lower end of the mounting base has symmetrically arranged support gears. The polishing assembly includes a mounting component, a rotating component, a first polishing component, and a second polishing component. The first and second polishing components are located between the mounting component and the rotating component. The mounting component and the rotating component are connected by bolts. The rotating component is meshed with the drive gear. A polishing area is formed between the first and second polishing components. When the first polishing part or the second polishing part is pressed, the area of ​​the polishing area is increased. The first polishing part and the second polishing part are provided with grinding parts, which are located within the polishing area.

2. The steel pipe surface polishing method according to claim 1, characterized in that, The mounting base consists of a base plate and a first mounting plate and a second mounting plate disposed on the base plate, with an installation area formed between the first mounting plate and the second mounting plate.

3. The steel pipe surface polishing method according to claim 2, characterized in that, A first mounting hole is formed in the middle of the first mounting plate, and a second mounting hole is formed in the middle of the second mounting plate. The inner diameter of the first mounting hole is smaller than the inner diameter of the second mounting hole. The rotating component and the mounting component are disposed in the mounting area and the first mounting hole.

4. The steel pipe surface polishing method according to claim 1, characterized in that, The mounting component consists of a mounting block and symmetrically arranged arc-shaped plates. A first through hole is formed in the middle of the mounting block, and the inner diameter of the first through hole is matched with the area of ​​the polishing area.

5. The steel pipe surface polishing method according to claim 4, characterized in that, The arc-shaped plate is provided with symmetrically arranged mounting slots, and a blocking plate is formed between the mounting slots. The blocking plate is provided with positioning posts, and the positioning posts are provided with springs.

6. The steel pipe surface polishing method according to claim 5, characterized in that, An installation area is formed between the two sides of the arc-shaped plate. The rotating component consists of a gear disk and a fixed plate. The fixed plate is set in the installation area. A second through hole is formed in the middle of the gear disk. The second through hole is matched with the area of ​​the polishing area. The gear disk is meshed with the drive gear.

7. The steel pipe surface polishing method according to claim 5, characterized in that, The first polishing element and the second polishing element are arranged in a rotationally symmetrical manner.

8. The steel pipe surface polishing method according to claim 7, characterized in that, Both the first polishing component and the second polishing component are composed of a first arc segment, a second arc segment, and symmetrically arranged mounting arms. The upper ends of the mounting arms are connected, and the mounting arms are disposed in the mounting groove. An avoidance area is formed between the mounting arms, and the blocking plate is disposed within the avoidance area.

9. The steel pipe surface polishing method according to claim 8, characterized in that, The first arc segment is connected to one mounting arm, and the second arc segment is connected to another mounting arm. An installation gap is formed between the first arc segment and the second arc segment. An active area is formed in the middle of the second arc segment, and the active area and the avoidance area are connected.

10. The steel pipe surface polishing method according to claim 9, characterized in that, The second arc segment is provided with a first fixing groove and a second fixing groove. The grinding component is set on the second arc segment. The grinding component is composed of a grinding plate and a fixing plate. The grinding plate is set in the first fixing groove, and the fixing plate is installed in the second fixing groove by bolts.

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