Fixing device for stainless steel pipe opening grinding

The fixing device driven by servo motors and stepper motors solves the problem of unstable fixing of stainless steel pipes of different diameters in existing devices, achieving a stable fixing effect and reducing the risk of loosening and sliding.

CN224254938UActive Publication Date: 2026-05-19FOSHANNANHAIYINZEBUXIUGANG PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHANNANHAIYINZEBUXIUGANG PROD CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing stainless steel pipe joint fixing devices are not effective when fixing stainless steel pipes with excessively large or small diameters, which may lead to loosening or slippage and failure to secure them effectively.

Method used

The system employs a servo motor-driven drive mechanism and a stepper motor-controlled adjustment component. The stainless steel tube is stabilized by a movable block and a fixed frame. The servo motor drives the threaded rod and movable block to move, and the lifting screw adjusts the fixed plate to accommodate stainless steel tubes of different diameters.

Benefits of technology

It achieves stable fixation of stainless steel pipes of different diameters, reduces the risk of loosening or slippage during the grinding process, and improves the stability of the fixing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a fixing device for stainless steel pipe mouth grinding, and relates to the field of stainless steel pipe machining equipment, the fixing device comprises a workbench and a mouth grinding assembly, the top of the workbench is fixedly connected with a fixing assembly, and the mouth grinding assembly is fixedly connected to the bottom of the workbench. Then a driving mechanism is started, the driving mechanism is driven to rotate, a plurality of movable blocks are driven by the driving mechanism to move towards the stainless steel pipe, the stainless steel pipe is fixed through a plurality of fixing frames, then an adjusting assembly is started, the adjusting assembly is driven to rotate, the adjusting assembly is driven to descend, and a fixing disc and the stainless steel pipe are driven to descend; according to the device, the problems that the telescopic range of an elastic rope is limited, and stainless steel pipes with too large or too small diameters can not be effectively fixed are solved, and the probability that the fixing effect is unstable and even the stainless steel pipes loosen or slide in the polishing process is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe processing equipment, and in particular to a fixing device for stainless steel pipe grinding joints. Background Technology

[0002] Stainless steel pipe is a type of steel pipe characterized by its rust resistance and corrosion resistance. It is widely used in various fields, including construction, chemical industry, petroleum, food processing, medical equipment, transportation, water treatment, and household products.

[0003] Currently, stainless steel pipes require grinding at the pipe ends during processing to remove burrs, oxide layers, and dirt. During grinding, a fixing device is used to secure the pipe. Existing stainless steel pipe grinding fixing devices work by first pulling open the second fixing block, inserting the pipe into the device, releasing the second fixing block, and then using an elastic rope to return it to its original position and fix the pipe. The distance between the first and second grinding blocks is then adjusted by rotating an adjusting rod to match the inner diameter of the pipe. The pipe end is then ground using both the first and second grinding blocks. However, existing stainless steel pipe grinding fixing devices, using the first and second fixing blocks and the elastic rope, have limitations. The elastic rope has a limited range of extension, which may not effectively secure pipes with excessively large or small diameters, leading to unstable fixing results and even loosening or slippage during grinding.

[0004] Therefore, it is necessary to provide a new type of fixing device for the ground joint of stainless steel tubes to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a fixing device for the ground joint of stainless steel pipe.

[0006] This utility model provides a fixing device for grinding stainless steel pipes, including a worktable and a grinding assembly. A fixing assembly is fixedly connected to the top of the worktable, and the grinding assembly is fixedly connected to the bottom of the worktable. The fixing assembly includes an adjustment mechanism, a fixed plate, several movable blocks, and several fixed blocks. The adjustment mechanism is fixedly connected to the top of the worktable, and the fixed plate is fixedly connected to the bottom of the adjustment mechanism. A driving mechanism is rotatably connected to the inner wall of the fixed plate. Several movable blocks are threadedly connected to the driving mechanism, and several fixed frames are fixedly connected to one end of each movable block. Several compression springs are fixedly connected to the inner walls of each fixed frame. One end of each fixed block is fixedly connected to the end of the compression spring away from the fixed frame, and a rubber pad is fixedly connected to the end of each movable block away from the fixed frame.

[0007] Preferably, the drive mechanism includes a servo motor, a plurality of driven bevel gears, and a plurality of threaded rods. The servo motor is fixedly connected to the inner wall of the fixed disk, and the output end of the servo motor is fixedly connected to a driving bevel gear. The plurality of driven bevel gears respectively mesh with the side walls of the driven bevel gears. One end of the plurality of threaded rods is rotatably connected to the inner wall of a groove opened on the top of the fixed disk, and the ends of the plurality of threaded rods away from the fixed disk are respectively fixedly connected to one end of the plurality of driven bevel gears.

[0008] Preferably, the adjustment assembly includes a fixed column, a fixed rod, a driving component, and a lifting screw. The fixed column is fixedly connected to the top of the worktable, the fixed rod is fixedly connected to the top of the fixed column, and a fixed plate is fixedly connected to the top of the fixed rod. The driving component is fixedly connected to the top of the fixed plate, and the lifting screw is fixedly connected to the output end of the driving component. A limit plate is rotatably connected to the end of the lifting screw away from the driving motor, and a movable plate is threaded onto the lifting screw. One end of the movable plate is rotatably connected to the fixed rod, and a cylinder is fixedly connected to the end of the movable plate away from the fixed rod. The output end of the cylinder is fixedly connected to the top of the fixed plate.

[0009] Preferably, the grinding assembly includes a first grinding block and a rotating disk. One end of the first grinding block is fixedly connected to a second grinding block via an adjusting rod, and both the first and second grinding blocks are fixedly connected to the top of the rotating disk. The rotating disk is rotatably connected to the inner wall of a through hole opened on the top of the worktable, and a drive motor is fixedly connected to the bottom of the rotating disk. The drive motor is fixedly connected to the bottom of the worktable.

[0010] Preferably, the driving component is a stepper motor, which is fixedly connected to the top of the fixed plate, and the output end of the stepper motor is fixedly connected to one end of the lifting screw.

[0011] Preferably, the bottom of the workbench is fixedly connected with several evenly arranged leg supports.

[0012] Compared with related technologies, the fixing device for the ground joint of stainless steel pipe provided by this utility model has the following advantages:

[0013] By using a fixed assembly, when grinding the end of a stainless steel pipe is required, the stainless steel pipe is first placed between several movable plates. Then, the drive mechanism is activated, causing it to rotate and move the movable plates toward the stainless steel pipe. The stainless steel pipe is then fixed by several fixed frames. Next, the adjustment assembly is activated, causing it to rotate and descend, which in turn causes the fixed plate and the stainless steel pipe to descend. This device solves the problem that the elastic rope has a limited range of extension and contraction, which may not be able to effectively fix stainless steel pipes with excessively large or small diameters. It also reduces the probability of unstable fixing effect or loosening or slippage during the grinding process of the stainless steel pipe. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a fixing device for the ground joint of a stainless steel pipe provided by this utility model;

[0015] Figure 2 for Figure 1 The diagram shows the cross-sectional structure.

[0016] Figure 3 for Figure 1 A bottom view of the fixed component shown.

[0017] Figure 4 for Figure 3 The diagram shows the structure of the fixing component.

[0018] Figure 5 for Figure 4 A partial structural diagram of the fixed component is shown.

[0019] The following are the labels in the diagram: 1. Base; 2. Fixed plate; 3. Movable block; 4. Fixed block; 5. Fixed frame; 6. Leg support; 7. Compression spring; 8. Rubber pad; 9. Servo motor; 10. Driven bevel gear; 11. Threaded rod; 12. Driven bevel gear; 13. Fixed column; 14. Fixed rod; 15. Lifting screw; 16. Fixed plate; 17. Limiting plate; 18. Movable plate; 19. Cylinder; 20. First grinding block; 21. Rotary disk; 22. Second grinding block; 23. Drive motor; 24. Stepper motor. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 ,in, Figure 1 A schematic diagram of the structure of a fixing device for the ground joint of a stainless steel pipe provided by this utility model; Figure 2 for Figure 1 The diagram shows the cross-sectional structure. Figure 3 for Figure 1 A bottom view of the fixed component shown. Figure 4 for Figure 3 The diagram shows the structure of the fixing component. Figure 5 for Figure 4 A partial structural diagram of the fixed component is shown.

[0022] In the specific implementation process, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, a number of evenly arranged leg supports 6 are fixedly connected to the bottom of the workbench 1, and a fixing component is fixedly connected to the top of the workbench 1. The grinding end assembly is fixedly connected to the bottom of the workbench 1. The fixing component includes an adjustment mechanism, a fixing plate 2, a number of movable blocks 3, and a number of fixing blocks 4. The adjustment mechanism is fixedly connected to the top of the workbench 1, the fixing plate 2 is fixedly connected to the bottom of the adjustment mechanism, and a drive mechanism is rotatably connected to the inner wall of the fixing plate 2. The movable blocks 3 are all threadedly connected to the drive mechanism, and a number of fixing frames 5 are fixedly connected to one end of each of the movable blocks 3. A number of compression springs 7 are fixedly connected to the inner wall of each of the fixing frames 5. One end of each of the fixing blocks 4 is fixedly connected to the end of the compression spring 7 away from the fixing frame 5. A rubber pad 8 is fixedly connected to the end of each of the movable blocks 3 away from the fixing frame 5. The movable blocks 3 can fix the inner wall of the stainless steel tube through the fixing frames 5 and fixing blocks 4 set on them. At the same time, the movable blocks 3 can also fix the inner wall of the stainless steel tube through the rubber pad 8 set on one end of them.

[0023] The drive mechanism includes a servo motor 9, a plurality of driven bevel gears 10 and a plurality of threaded rods 11. The servo motor 9 is fixedly connected to the inner wall of the fixed disk 2, and the output end of the servo motor 9 is fixedly connected to the driving bevel gear 12. The plurality of driven bevel gears 10 respectively mesh with the side wall of the driven bevel gear 10. One end of the plurality of threaded rods 11 is rotatably connected to the inner wall of the groove opened on the top of the fixed disk 2, and the ends of the plurality of threaded rods 11 away from the fixed disk 2 are respectively fixedly connected to one end of the plurality of driven bevel gears 10.

[0024] The adjustment assembly includes a fixed column 13, a fixed rod 14, a drive component, and a lifting screw 15. The fixed column 13 is fixedly connected to the top of the worktable 1. The fixed rod 14 is fixedly connected to the top of the fixed column 13, and a fixed plate 16 is fixedly connected to the top of the fixed rod 14. The drive component is fixedly connected to the top of the fixed plate 16. The lifting screw 15 is fixedly connected to the output end of the drive component. The drive component is a stepper motor 24. The stepper motor 24 is fixedly connected to the top of the fixed plate 16, and the output end of the stepper motor 24 is fixedly connected to one end of the lifting screw 15. The end of the lifting screw 15 away from the drive motor 23 is rotatably connected to a limit plate 17, and a movable plate 18 is threaded onto the lifting screw 15. One end of the movable plate 18 is rotatably connected to the fixed rod 14, and the movable plate 18... A cylinder 19 is fixedly connected to the end of the cylinder 19 away from the fixed rod 14. The output end of the cylinder 19 is fixedly connected to the top of the fixed plate 2. When it is necessary to grind the stainless steel pipe end, the stainless steel pipe is first placed between several movable blocks 3. Then, the servo motor 9 is started. The servo motor 9 drives several driven bevel gears 10 to rotate through the active bevel gear 12. The driven bevel gears 10 drive the threaded rod 11 to rotate. The threaded rod 11 drives several movable blocks 3 to move towards the stainless steel pipe. The stainless steel pipe is fixed by several fixed frames 5. Then, the stepper motor 24 is started. The stepper motor 24 drives the lifting screw 15 to rotate. The lifting screw 15 drives the movable plate 18 to descend, and drives the fixed plate 2 and the stainless steel pipe to descend.

[0025] refer to Figure 1 as well as Figure 2 As shown, the grinding assembly includes a first grinding block 20 and a rotating disk 21. One end of the first grinding block 20 is fixedly connected to a second grinding block 22 via an adjusting rod. Both the first grinding block 20 and the second grinding block 22 are fixedly connected to the top of the rotating disk 21. The rotating disk 21 is rotatably connected to the inner wall of a through hole opened on the top of the worktable 1. A drive motor 23 is fixedly connected to the bottom of the rotating disk 21. The drive motor 23 is fixedly connected to the bottom of the worktable 1. When the drive motor 23 is started, the rotating disk 21, the first grinding block 20, and the second grinding block 22 are rotated, thereby grinding the end of the stainless steel pipe.

[0026] The working principle of this utility model is as follows: When it is necessary to grind the end of a stainless steel pipe, the stainless steel pipe is first placed between several movable blocks 3. Then, the servo motor 9 is started. The servo motor 9 drives several driven bevel gears 10 to rotate through the active bevel gear 12. The driven bevel gears 10 drive the threaded rod 11 to rotate. The threaded rod 11 drives several movable blocks 3 to move towards the stainless steel pipe. The stainless steel pipe is fixed by several fixed frames 5. Then, the stepper motor 24 is started. The stepper motor 24 drives the lifting screw 15 to rotate. The lifting screw 15 drives the movable plate 18 to descend, and drives the fixed plate 2 and the stainless steel pipe to descend. Then, the drive motor 23 is started. The drive motor 23 drives the rotating plate 21, the first grinding block 20 and the second grinding block 22 to rotate, thereby grinding the end of the stainless steel pipe.

[0027] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fixing device for grinding joints of stainless steel pipes, comprising a worktable (1) and a grinding joint assembly, wherein a fixing assembly is fixedly connected to the top of the worktable (1), and the grinding joint assembly is fixedly connected to the bottom of the worktable (1), characterized in that, The fixing assembly includes an adjustment mechanism, a fixed plate (2), several movable blocks (3) and several fixed blocks (4). The adjustment mechanism is fixedly connected to the top of the workbench (1). The fixed plate (2) is fixedly connected to the bottom of the adjustment mechanism. The inner wall of the fixed plate (2) is rotatably connected to a driving mechanism. Several movable blocks (3) are threadedly connected to the driving mechanism. Several fixed frames (5) are fixedly connected to one end of several movable blocks (3). Several compression springs (7) are fixedly connected to the inner wall of several fixed frames (5). One end of several fixed blocks (4) is fixedly connected to the end of the compression spring (7) away from the fixed frame (5). Rubber pads (8) are fixedly connected to the end of several movable blocks (3) away from the fixed frame (5).

2. The fixing device for the ground joint of stainless steel pipe according to claim 1, characterized in that, The drive mechanism includes a servo motor (9), a plurality of driven bevel gears (10) and a plurality of threaded rods (11). The servo motor (9) is fixedly connected to the inner wall of the fixed disk (2), and the output end of the servo motor (9) is fixedly connected to the driving bevel gear (12). The plurality of driven bevel gears (10) respectively mesh with the side wall of the driven bevel gears (10). One end of the plurality of threaded rods (11) is rotatably connected to the inner wall of the groove opened on the top of the fixed disk (2), and the end of the plurality of threaded rods (11) away from the fixed disk (2) is fixedly connected to one end of the plurality of driven bevel gears (10).

3. The fixing device for the ground joint of stainless steel pipe according to claim 2, characterized in that, The adjustment mechanism includes a fixed column (13), a fixed rod (14), a driving component, and a lifting screw (15). The fixed column (13) is fixedly connected to the top of the workbench (1). The fixed rod (14) is fixedly connected to the top of the fixed column (13), and a fixed plate (16) is fixedly connected to the top of the fixed rod (14). The driving component is fixedly connected to the top of the fixed plate (16). The lifting screw (15) is fixedly connected to the output end of the driving component. A limit plate (17) is rotatably connected to the end of the lifting screw (15) away from the driving motor (23). A movable plate (18) is threadedly connected to the lifting screw (15). One end of the movable plate (18) is rotatably connected to the fixed rod (14), and a cylinder (19) is fixedly connected to the end of the movable plate (18) away from the fixed rod (14). The output end of the cylinder (19) is fixedly connected to the top of the fixed plate (2).

4. The fixing device for the ground joint of stainless steel pipe according to claim 3, characterized in that, The grinding assembly includes a first grinding block (20) and a rotating disk (21). One end of the first grinding block (20) is fixedly connected to a second grinding block (22) via an adjusting rod. Both the first grinding block (20) and the second grinding block (22) are fixedly connected to the top of the rotating disk (21). The rotating disk (21) is rotatably connected to the inner wall of a through hole opened on the top of the worktable (1). A drive motor (23) is fixedly connected to the bottom of the rotating disk (21). The drive motor (23) is fixedly connected to the bottom of the worktable (1).

5. The fixing device for the ground joint of stainless steel pipe according to claim 4, characterized in that, The driving component is a stepper motor (24), which is fixedly connected to the top of the fixed plate (16), and the output end of the stepper motor (24) is fixedly connected to one end of the lifting screw (15).

6. The fixing device for the ground joint of stainless steel pipe according to claim 5, characterized in that, The bottom of the workbench (1) is fixedly connected with several evenly arranged leg supports (6).