Efficient grinding machine for inner wall and outer wall of stainless steel pipe

By designing a high-efficiency grinding machine for the inner and outer walls of stainless steel pipes, and utilizing a motor-driven lead screw and gear transmission system to achieve synchronous grinding of the inner and outer walls of steel pipes, the problem of low efficiency in manual hand-held grinding in existing technologies has been solved, thereby improving production efficiency and adaptability.

CN223776717UActive Publication Date: 2026-01-09ZHEJIANG HAOHONG STAINLESS STEEL CO LTD
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Patent Information

Application Number
CN202520283514.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-01-09
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

Existing stainless steel pipe grinding equipment requires manual hand-grinding of both the inner and outer sides, resulting in low production efficiency and the ability to grind only one side at a time.

Method used

A high-efficiency grinding machine for the inner and outer walls of stainless steel pipes was designed. It achieves synchronous grinding of the inner and outer walls of steel pipes through a motor-driven lead screw and gear transmission system, and can adapt to steel pipes of different sizes through an adjustable grinding disc and support structure.

Benefits of technology

This technology enables simultaneous grinding of the inner and outer walls of stainless steel pipes, improving production efficiency, adapting to steel pipes of different sizes, and reducing manpower waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The efficient grinding machine for the inner wall and the outer wall of the stainless steel pipe comprises a bottom plate, a bent side plate and a connecting plate are fixedly connected to the two sides of the upper portion of the bottom plate respectively, a first motor is fixedly connected to the outer side of the connecting plate, and the power end of the first motor penetrates through the connecting plate to be fixedly connected with a lead screw. The other end of the lead screw is rotationally connected with the bent side plate, the outer side of the lead screw is in threaded connection with a moving seat, a transverse plate is fixedly connected between the supporting frames on the two sides, the transverse plate is rotationally connected with a second bevel gear, connecting rings are fixedly connected to the two sides of the upper portions of the supporting frames, and rotating cylinders are rotationally connected to the interiors of the connecting rings; four sets of moving frames are fixedly connected to the two sides of the rotating cylinder, moving grooves are formed in the moving frames, moving plates are slidably connected to the interiors of the moving grooves in the same side, second motors are fixedly connected to the outer sides of the moving plates, and the power ends of the second motors penetrate through the rotating cylinder to be fixedly connected with grinding discs; and the inner sides and the outer sides of the steel pipes with different sizes can be polished simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe processing technology, specifically to a high-efficiency grinding machine for the inner and outer walls of stainless steel pipes. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material that is widely used in many fields due to its excellent corrosion resistance, high strength, and good hygiene.

[0003] When polishing existing stainless steel pipes, both the inner and outer sides need to be polished. Due to the different sizes of stainless steel pipes, manual polishing tools are usually required to polish the steel pipes, which is a serious waste of manpower. In addition, the existing polishing equipment can only polish one side at a time, resulting in low production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency grinding machine for the inner and outer walls of stainless steel pipes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency grinding machine for the inner and outer walls of stainless steel pipes, comprising a base plate, with a curved side plate and a connecting plate fixedly connected to the upper two sides of the base plate respectively. A first motor is fixedly connected to the outer side of the connecting plate, and a lead screw is fixedly connected to the power end of the first motor through the connecting plate. The other end of the lead screw is rotatably connected to the curved side plate. A movable seat is threadedly connected to the outer side of the lead screw. A sliding groove is provided inside the movable seat, and a rack is slidably connected inside the sliding groove. The two sides of the rack are fixedly connected to the curved side plate and the connecting plate respectively. A first connecting groove is provided inside the movable seat, and a rotating shaft is rotatably connected inside the first connecting groove. A follower gear is fixedly connected to the outer side of the rotating shaft, and the follower gear meshes with the rack. Two sets of support frames are fixedly connected to the upper part of the movable seat, one side... The support frame is internally rotatably connected to a first bevel gear. A first transmission belt is fitted around the tail of the first bevel gear and the outer side of the rotating shaft. A second bevel gear is meshed with the outer side of the first bevel gear. A horizontal plate is fixedly connected between the two sides of the support frame. The horizontal plate is rotatably connected to the second bevel gear. Connecting rings are fixedly connected to the upper two sides of the support frame. A rotating cylinder is rotatably connected inside the connecting rings. A toothed ring is fixedly connected to the outer side of one side of the rotating cylinder. A connecting gear is fixedly connected through the tail of the second bevel gear through the horizontal plate. The connecting gear meshes with the toothed ring. Four sets of movable frames are fixedly connected to both sides of the rotating cylinder. A movable groove is opened inside the movable frame. A movable plate is slidably connected inside the movable groove on the same side. A second motor is fixedly connected to the outer side of the movable plate. A grinding disc is fixedly connected through the power end of the second motor through the rotating cylinder.

[0006] Preferably, a first threaded rod is internally threaded on one side of the movable plate, and the first threaded rod is rotatably connected to the inside of the movable frame. A sliding rod is internally slidably connected on the other side of the movable plate, and both ends of the sliding rod are fixedly connected to the movable frame.

[0007] Preferably, a rotating disk is rotatably connected inside the curved side plate, a third bevel gear is rotatably connected inside the rotating disk, a rotating cap is fixedly connected to the outside of the third bevel gear through the rotating disk, four sets of fourth bevel gears are meshed with the outside of the third bevel gear, a second threaded rod is fixedly connected to the tail of the fourth bevel gear, the tail of the second threaded rod is rotatably connected to the rotating disk, a moving block is threadedly connected to the outside of the second threaded rod, a second connecting groove is opened on the outside of the rotating disk, an installation rod is fixedly connected to one side of the moving block, and a grinding plate is threadedly connected to the installation rod through the second connecting groove.

[0008] Preferably, a third motor is fixedly connected to the upper part of the curved side plate, and a second transmission belt is sleeved on the power end of the third motor and the outer side of the rotating disk.

[0009] Preferably, a mounting bracket is fixedly connected to the upper part of the connecting plate, a third threaded rod is threadedly connected to the upper side of the mounting bracket, and a support ring is rotatably connected to the upper part of the third threaded rod.

[0010] Preferably, a number of rolling rods are rotatably connected to the upper side of the support ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model involves inserting a steel pipe between a grinding plate and a rotating cylinder. A first motor drives a lead screw, which moves a movable seat along a rack. The rack drives a follower gear to rotate. The rotating shaft drives a first bevel gear to rotate via a first transmission belt. The first bevel gear meshes with the second bevel gear, causing the connecting gear to rotate. The rotating cylinder rotates inside the connecting ring via a gear ring. A second motor drives a grinding disc to grind the outside of the steel pipe. A third motor rotates, which drives a rotating disc to rotate via a second transmission belt. The rotating disc rotates in the opposite direction to the rotating cylinder, causing the grinding plate to grind the inside of the steel pipe. This allows for simultaneous grinding of the inside and outside of steel pipes of different sizes.

[0013] 2. This utility model uses a rotating cap, where the third bevel gear drives the fourth bevel gear to rotate, and the second threaded rod drives the moving block to move. The mounting rod drives the grinding plate to tighten against the inner wall of the steel pipe. By rotating the first threaded rod, the moving plate moves along the sliding rod, thereby pressing the grinding disc against the steel pipe according to the outer diameter of the steel pipe. This allows for fixed grinding of steel pipes of different sizes. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the rotating cylinder structure from a second perspective of the present invention;

[0016] Figure 3 This is a cross-sectional view of the rotating disk structure from a third-view perspective of this utility model;

[0017] Figure 4 This is a schematic diagram of the fourth-view support ring structure of this utility model.

[0018] In the diagram: 1. Base plate; 2. Curved side plate; 3. Connecting plate; 4. Lead screw; 5. First motor; 6. Moving seat; 7. Rack; 8. Sliding groove; 9. First connecting groove; 10. Rotating shaft; 11. Follower gear; 12. First transmission belt; 13. First bevel gear; 14. Second bevel gear; 15. Support frame; 16. Horizontal plate; 17. Connecting gear; 18. Connecting ring; 19. Rotating cylinder; 20. Gear ring; 21. Moving frame; 22. Moving groove; 23. Moving plate; 24. Sliding rod; 25. First threaded rod; 26. Second motor; 27. Grinding disc; 28. Rotating disc; 29. ​​Third bevel gear; 30. Rotating cap; 31. Fourth bevel gear; 32. Second threaded rod; 33. Moving block; 34. Second connecting groove; 35. Mounting rod; 36. Grinding plate; 37. Third motor; 38. Second transmission belt; 39. Mounting bracket; 40. Third threaded rod; 41. Support ring; 42. Rolling rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4This utility model provides a technical solution: a high-efficiency grinding machine for the inner and outer walls of stainless steel pipes, comprising a base plate 1, with bent side plates 2 and connecting plates 3 fixedly welded to the upper two sides of the base plate 1 respectively. A first motor 5 is installed on the outer flange of the connecting plate 3. The power end of the first motor 5 passes through the connecting plate 3 and is connected to a lead screw 4 via a coupling. The other end of the lead screw 4 is rotatably connected to the bent side plate 2. A movable seat 6 is threaded onto the outer side of the lead screw 4. A sliding groove 8 is provided inside the movable seat 6. A rack 7 is slidably installed inside the sliding groove 8. The two sides of the rack 7 are fixedly welded to the bent side plate 2 and the connecting plate 3 respectively. The movable base 6 has a first connecting groove 9 inside, and a rotating shaft 10 is rotatably installed inside the first connecting groove 9. A follower gear 11 is fixedly welded to the outside of the rotating shaft 10. The follower gear 11 meshes with a rack 7. Two sets of support frames 15 are fixedly welded to the upper part of the movable base 6. A first bevel gear 13 is rotatably installed inside one support frame 15. A first transmission belt 12 is sleeved on the tail of the first bevel gear 13 and the outside of the rotating shaft 10. A second bevel gear 14 is meshed and connected to the outside of the first bevel gear 13. A cross plate 16 is fixedly welded between the two support frames 15. The cross plate 16 and the second bevel gear 14 mesh with each other. Gear 14 is rotatably connected. Connecting rings 18 are fixedly welded to both sides of the upper part of the support frame 15. A rotating cylinder 19 is rotatably installed inside the connecting ring 18. A toothed ring 20 is fixedly welded to the outside of one side of the rotating cylinder 19. A connecting gear 17 is fixedly welded to the tail of the second bevel gear 14 through the cross plate 16. The connecting gear 17 meshes with the toothed ring 20. The first motor 5 drives the lead screw 4, which drives the moving seat 6 to move along the rack 7. The rack 7 drives the follower gear 11 to rotate. The rotating shaft 10 drives the first bevel gear 13 to rotate through the first transmission belt 12, meshing with the second bevel gear 14 to make the connecting gear 14 rotate. 17 rotates, and the toothed ring 20 drives the rotating cylinder 19 to rotate inside the connecting ring 18. Four sets of movable frames 21 are fixedly welded on both sides of the rotating cylinder 19. The movable frame 21 has a movable groove 22 inside. A movable plate 23 is slidably installed inside the movable groove 22 on the same side. A second motor 26 is installed on the outer flange of the movable plate 23. The power end of the second motor 26 penetrates the rotating cylinder 19 and is fixedly welded to a grinding disc 27. The steel pipe is placed inside the rotating cylinder 19. The second motor 26 drives the grinding disc 27, the movable seat 6 moves and the rotating cylinder 19 rotates accordingly, and the outer side of the steel pipe is ground.

[0021] A first threaded rod 25 is threadedly installed on one side of the movable plate 23. The first threaded rod 25 is rotatably installed inside the movable frame 21. A sliding rod 24 is slidably connected on the other side of the movable plate 23. The two ends of the sliding rod 24 are fixedly welded to the movable frame 21. By rotating the first threaded rod 25, the movable plate 23 moves along the sliding rod 24, thereby pressing the grinding disc 27 against the steel pipe according to the outer diameter of the steel pipe. A rotating disk 28 is rotatably installed inside the curved side plate 2. A third bevel gear 29 is rotatably installed inside the rotating disk 28. The third bevel gear 29 penetrates the outside of the rotating disk 28. A rotating cap 30 is fixedly welded to the rotating disk 28. Four sets of fourth bevel gears 31 are meshed with the outer side of the third bevel gear 29. A second threaded rod 32 is fixedly welded to the tail of the fourth bevel gear 31. The tail of the second threaded rod 32 is rotatably connected to the rotating disk 28. A moving block 33 is threadedly installed on the outer side of the second threaded rod 32. A second connecting groove 34 is opened on the outer side of the rotating disk 28. An installation rod 35 is fixedly welded to one side of the moving block 33. A grinding plate 36 is threadedly installed on the installation rod 35 through the second connecting groove 34, which facilitates the replacement of the grinding plate 36. The rotating cap is rotated to access the grinding plate 36. 30. The third bevel gear 29 drives the fourth bevel gear 31 to rotate, which in turn drives the moving block 33 to move via the second threaded rod 32. The mounting rod 35 drives the grinding plate 36 to tighten the inner wall of the steel pipe. A third motor 37 is installed on the upper flange of the curved side plate 2. The power end of the third motor 37 is fitted with a second transmission belt 38 on the outside of the rotating disk 28. When the third motor 37 rotates, it drives the rotating disk 28 to rotate via the second transmission belt 38. The rotation direction of the rotating disk 28 is opposite to that of the rotating cylinder 19, so that the grinding plate 36 grinds the inside of the steel pipe. The grinding plate 36 and the grinding disk... The inner and outer walls of the steel pipe are subjected to force and rotate in opposite directions, which can prevent the steel pipe from rotating along with it; the upper part of the connecting plate 3 is fixedly welded with a mounting bracket 39, and a third threaded rod 40 is installed on the inner thread of the upper side of the mounting bracket 39. A support ring 41 is rotatably connected to the upper part of the third threaded rod 40. By rotating the third threaded rod 40, the support ring 41 supports the grinding plate 36, preventing the grinding plate 36 from being too long and causing one end to droop due to gravity; several sets of rolling rods 42 are rotatably installed on the inner side of the upper side of the support ring 41 to facilitate the rotation of the grinding plate 36 above the support ring 41.

[0022] Working principle: In use, the steel pipe is inserted between the grinding plate 36 and the rotating cylinder 19. By rotating the rotating cap 30, the third bevel gear 29 drives the fourth bevel gear 31 to rotate, which in turn drives the moving block 33 to move via the second threaded rod 32. The mounting rod 35 drives the grinding plate 36 to tighten the inner wall of the steel pipe. By rotating the first threaded rod 25, the moving plate 23 moves along the sliding rod 24, thereby pressing the grinding disc 27 against the steel pipe according to the outer diameter of the steel pipe. The first motor 5 drives the lead screw 4, which in turn drives the moving seat 6 to move along the rack 7. The rack 7 drives the follower gear 11 to rotate, and the rotating shaft 10 drives the first bevel gear 13 to rotate via the first transmission belt 12. The first bevel gear 14 meshes with the connecting gear 17 to rotate, and the rotating cylinder 19 rotates inside the connecting ring 18 via the gear ring 20. The second motor 26 drives the grinding disc 27 to grind the outside of the steel pipe. The third motor 37 rotates and drives the rotating disk 28 to rotate via the second transmission belt 38. The rotating disk 28 rotates in the opposite direction to the rotating cylinder 19, so that the grinding plate 36 grinds the inside of the steel pipe.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency grinding machine for the inner and outer walls of stainless steel pipes, including a base plate (1), characterized in that: The upper sides of the base plate (1) are respectively fixedly connected to a curved side plate (2) and a connecting plate (3). A first motor (5) is fixedly connected to the outside of the connecting plate (3). The power end of the first motor (5) penetrates the connecting plate (3) and is fixedly connected to a lead screw (4). The other end of the lead screw (4) is rotatably connected to the curved side plate (2). A movable seat (6) is threadedly connected to the outside of the lead screw (4). A sliding groove (8) is provided inside the movable seat (6). A rack (7) is slidably connected inside the sliding groove (8). The rack (7) has two sides. The movable seat (6) is fixedly connected to the curved side plate (2) and the connecting plate (3) respectively. A first connecting groove (9) is provided inside the movable seat (6). A rotating shaft (10) is rotatably connected inside the first connecting groove (9). A follower gear (11) is fixedly connected to the outside of the rotating shaft (10). The follower gear (11) meshes with the rack (7). Two sets of support frames (15) are fixedly connected to the upper part of the movable seat (6). A first bevel gear (13) is rotatably connected inside one of the support frames (15). The tail of the first bevel gear (13) and A first transmission belt (12) is sleeved on the outside of the rotating shaft (10). A second bevel gear (14) is meshed with the outside of the first bevel gear (13). A cross plate (16) is fixedly connected between the two support frames (15). The cross plate (16) is rotatably connected to the second bevel gear (14). Connecting rings (18) are fixedly connected to the upper two sides of the support frame (15). A rotating cylinder (19) is rotatably connected inside the connecting ring (18). A toothed ring (20) is fixedly connected to the outside of one side of the rotating cylinder (19). The second bevel gear ( 14) A connecting gear (17) is fixedly connected to the end of the cross plate (16). The connecting gear (17) meshes with the gear ring (20). Four sets of moving frames (21) are fixedly connected to both sides of the rotating cylinder (19). The moving frame (21) has a moving groove (22) inside. A moving plate (23) is slidably connected inside the moving groove (22) on the same side. A second motor (26) is fixedly connected to the outside of the moving plate (23). The power end of the second motor (26) is fixedly connected to a grinding disc (27) through the rotating cylinder (19).

2. The high-efficiency grinding machine for the inner and outer walls of stainless steel pipes according to claim 1, characterized in that: The movable plate (23) has a first threaded rod (25) internally threaded on one side, and the first threaded rod (25) is rotatably connected to the inside of the movable frame (21). The movable plate (23) has a sliding rod (24) internally slidably connected on the other side, and the two ends of the sliding rod (24) are fixedly connected to the movable frame (21).

3. The high-efficiency grinding machine for the inner and outer walls of stainless steel pipes according to claim 1, characterized in that: The curved side plate (2) is rotatably connected to a rotating disk (28). The rotating disk (28) is rotatably connected to a third bevel gear (29). The third bevel gear (29) is fixedly connected to a rotating cap (30) through the rotating disk (28). The third bevel gear (29) is meshed with four sets of fourth bevel gears (31) on its outer side. The tail of the fourth bevel gear (31) is fixedly connected to a second threaded rod (32). The tail of the second threaded rod (32) is rotatably connected to the rotating disk (28). The outer side of the second threaded rod (32) is threadedly connected to a moving block (33). The rotating disk (28) has a second connecting groove (34) on its outer side. The moving block (33) is fixedly connected to one side of an installation rod (35). The installation rod (35) is threadedly connected to a grinding plate (36) through the second connecting groove (34).

4. The high-efficiency grinding machine for the inner and outer walls of stainless steel pipes according to claim 3, characterized in that: A third motor (37) is fixedly connected to the upper part of the curved side plate (2), and a second transmission belt (38) is sleeved on the power end of the third motor (37) and the outside of the rotating disk (28).

5. The high-efficiency grinding machine for the inner and outer walls of stainless steel pipes according to claim 1, characterized in that: The upper part of the connecting plate (3) is fixedly connected to the mounting bracket (39), and the upper side of the mounting bracket (39) is internally threaded with a third threaded rod (40), and the upper part of the third threaded rod (40) is rotatably connected to a support ring (41).

6. The high-efficiency grinding machine for the inner and outer walls of stainless steel pipes according to claim 5, characterized in that: The upper side of the support ring (41) is rotatably connected to several sets of rolling rods (42).