Grinding machining device for inner wall and outer wall of pipeline
By designing a grinding device for the inner and outer walls of pipes, and utilizing a combination of magnetic coils and rotating grinding rods, the problem of simultaneously grinding the inner and outer walls of pipes in existing technologies has been solved, achieving efficient and environmentally friendly grinding effects for the inner and outer walls of pipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-17
AI Technical Summary
Existing technologies cannot efficiently process the outer wall of a pipe while simultaneously processing the inner wall, resulting in low processing efficiency. Furthermore, existing polishing methods are environmentally polluting or require secondary processing.
Design a device for grinding the inner and outer walls of pipes. Magnetic induction coils drive magnetic abrasive particles to move on the inner wall of the pipe, while a rotating grinding rod contacts the outer wall of the pipe to perform grinding. The device combines four-level electromagnetic induction coils, orthogonal electromagnetic induction coils, and an oscillating magnetic field to control the magnetic field strength and movement.
It achieves efficient and high-quality grinding of the inner and outer walls of pipes, improves processing efficiency, avoids secondary processing and environmental pollution, and has a simple structure that is easy to use.
Smart Images
Figure CN223997984U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to polishing equipment, specifically a device for grinding the inner and outer walls of pipes. Background Technology
[0002] For polishing the inner surfaces of slender pipes, the main polishing methods currently include electrochemical polishing, magnetic abrasive flow polishing, and magnetic field-assisted magnetic abrasive polishing. However, when polishing the inner surfaces of complex slender pipes, electrochemical polishing technology has low controllability over the electrochemical corrosion rate and generally uses acidic solutions, which can pollute the environment. Magnetic abrasive flow polishing technology also has low controllability over the movement of the polishing tool (magnetic abrasive flow), easily leading to over-polishing and under-polishing. Furthermore, secondary processing is required when machining the outer surface of the pipe. It is difficult to simultaneously machine the inner and outer walls of complex pipes and regular straight pipes.
[0003] Therefore, how to process the outer wall of the pipe simultaneously with the inner wall, and improve the processing efficiency of both the inner and outer walls of the pipe, is a technical problem that urgently needs to be solved. Summary of the Invention
[0004] The technical objective of this invention is to provide a grinding device for the inner and outer walls of pipes, in order to solve the problem of how to simultaneously process the inner wall of a pipe and the outer wall, thereby improving the processing efficiency of the inner and outer walls of pipes.
[0005] The technical task of this utility model is achieved in the following way: a device for grinding the inner and outer walls of a pipe, including a base and a cantilever beam. The cantilever beam is located above the middle part of the base and a coil placement assembly is provided at the middle part of the cantilever beam. The coil placement assembly is fixedly installed on the lower side of the cantilever beam and two grinding rods that pass through the coil placement assembly along the axial direction are provided inside the coil placement assembly. The contact point between the outer walls of the two grinding rods is used to place the pipe to be processed.
[0006] A rotary cylinder placement rack is provided on one side of the base. A pipe placement rack is provided on the side of the rotary cylinder placement rack near the cantilever beam. A rotary cylinder is installed inside the rotary cylinder placement rack. The movable end of the rotary cylinder is connected to one end of the pipe placement rack through a coupling. The other end of the rotary placement rack is used to place the pipe to be processed.
[0007] Preferably, the cantilever beam is provided with support beams at both ends, a support block is provided at the lower end of the support beam, a roller is provided on the lower side of the support block, and the end of the support block away from the support beam is slidably engaged with the base.
[0008] Preferably, the base is a U-shaped structure composed of a convex part and a square part. The convex part has a pipe placement rack mounting groove, and the pipe placement rack is installed in the pipe placement rack mounting groove. The two sides of the square part are provided with slide rails, which slide with the support block.
[0009] Preferably, the coil placement assembly includes a connecting block and a coil placement frame. One side of the connecting block is fixed to the top of the coil placement frame, and the other side of the connecting block is mounted on the cantilever beam. The coil placement frame is provided with a coil placement hole, and a magnetic coil is provided in the coil placement hole. The magnetic coil is used to drive the movement of magnetic abrasive particles placed in the pipe to be processed, so as to realize the grinding process of the inner wall of the pipe to be processed.
[0010] More preferably, the coil placement rack includes a circular placement part and four arc-shaped protruding placement parts, the four arc-shaped protruding placement parts are symmetrically distributed on the outer edge of the circular placement part, and two of the arc-shaped protruding placement parts are located at both ends of the connecting block; the circular placement part is provided with evenly arranged coil placement holes, and each of the four arc-shaped protruding placement parts is provided with a coil placement hole.
[0011] Preferably, the pipe placement rack is circular, with a pipe placement hole in the middle of the circular pipe placement rack, and symmetrical slots arranged in the pipe placement hole.
[0012] Preferably, a support component is provided at one end of each of the two grinding rods, and the two support components are arranged symmetrically.
[0013] More preferably, the support assembly includes a support base, the bottom of which is mounted on a base platform, a connecting rod at the top of the support base, one end of which is mounted on the support base, and the other end of which is a support rod. A support beam is provided at the upper middle part of the support rod, and support frames are provided at both ends of the support beam. One end of the support frame is connected to the support beam, and the other end of the support frame is connected to the grinding rod rod.
[0014] The pipe inner and outer wall grinding device of this utility model has the following advantages:
[0015] (I) This utility model uses the mutual cooperation and movement of various components to fix the pipe to be processed by the pipe placement frame, and controls the magnetic field strength in the processing area by the magnetic induction coil to control the magnetic abrasive to process the inner surface of the pipe to be processed; wherein, the magnetic induction coil is composed of a gradient magnetic field (direct current) formed by 4 levels of electromagnetic induction coil, a rotating magnetic field (sinusoidal alternating current) formed by 4 levels of orthogonal electromagnetic induction coil, and an oscillating magnetic field (alternating current) formed by 2 levels of electromagnetic induction coil.
[0016] (II) This utility model polishes the inner wall of a non-magnetic, slender and complex pipe by moving magnetic abrasive particles on the inner surface of the pipe to be processed, thus meeting the requirements of high-precision and high-quality smooth pipe inner wall processing.
[0017] (III) This utility model achieves grinding by having the grinding rod rotate and the pipe to be processed rotate, thereby making contact between the outer wall of the pipe and the surface of the grinding rod for grinding, which greatly improves the processing efficiency of the pipe.
[0018] Therefore, this utility model has the characteristics of reasonable design, simple structure, easy processing, small size, convenient use, and multiple uses, and thus has great value for promotion and use. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings.
[0020] Appendix Figure 1 A three-dimensional structural diagram of a device for grinding the inner and outer walls of pipes;
[0021] Appendix Figure 2 This is a schematic diagram of the three-dimensional structure of the base.
[0022] Appendix Figure 3 Schematic diagram of the structure of the pipe inner and outer wall grinding equipment
[0023] Appendix Figure 4 For the attached Figure 3 Sectional view of line AA in the middle;
[0024] Appendix Figure 5 A three-dimensional structural diagram of a pipe placement rack;
[0025] Appendix Figure 6 A three-dimensional structural diagram of the coil placement assembly;
[0026] Appendix Figure 7 A schematic diagram of the three-dimensional structure after the coil placement component and the magnetic coil are assembled;
[0027] Appendix Figure 8 This is a schematic diagram of the cross-section of the pipe to be processed;
[0028] Appendix Figure 9 A schematic diagram of the three-dimensional structure supporting the components.
[0029] In the diagram: 1. Base, 2. Cantilever beam, 3. Coil placement assembly, 4. Grinding rod, 5. Pipe to be processed, 6. Rotary cylinder placement rack, 7. Pipe placement rack, 8. Rotary cylinder, 9. Coupling, 10. Support beam, 11. Support block, 12. Roller, 13. Protrusion, 14. Square part, 15. Pipe placement rack mounting slot, 16. Slide rail, 17. Connecting block, 18. Coil placement rack, 19. Coil placement hole, 20. Magnetic coil, 21. Magnetic abrasive, 22. Circular placement part, 23. Arc-shaped protruding placement part, 24. Pipe to be processed placement hole, 25. Slot, 26. Support assembly, 27. Support base, 28. Connecting rod, 29. Support rod, 30. Support beam, 31. Support frame. Detailed Implementation
[0030] The following is a detailed description of a pipe inner and outer wall grinding device according to the present invention, with reference to the accompanying drawings and specific embodiments.
[0031] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] Example:
[0034] As attached Figure 1 , 3 As shown in Figure 4, this embodiment provides a device for grinding the inner and outer walls of a pipe. Its structure includes a base 1 and a cantilever beam 2. The cantilever beam 2 is located above the middle of the base 1, and a coil placement assembly 3 is installed at the middle of the cantilever beam 2. The coil placement assembly 3 is fixedly installed on the lower side of the cantilever beam 2, and two grinding rods 4 that pass through the coil placement assembly 3 axially are installed inside the coil placement assembly 3. The contact point between the outer walls of the two grinding rods 4 is used to place the pipe 5 to be processed. A rotary cylinder placement frame 6 is installed on one side of the base 1. A pipe placement frame 7 is installed on the side of the rotary cylinder placement frame 6 near the cantilever beam 2. A rotary cylinder 8 is installed inside the rotary cylinder placement frame 6. The movable end of the rotary cylinder 8 is connected to one end of the pipe placement frame 7 through a coupling 9. The other end of the rotary placement frame 7 is used to place the pipe 5 to be processed.
[0035] In this embodiment, support beams 10 are installed at both ends of the cantilever beam 2, and support blocks 11 are installed at the lower end of the support beams 10. Rollers 12 are installed on the lower side of the support blocks 11, and the end of the support blocks 11 away from the support beams 10 slides in cooperation with the base 1.
[0036] As attached Figure 2 As shown, the base 1 in this embodiment is a U-shaped structure composed of a protrusion 13 and a square part 14. A pipe placement rack mounting groove 15 is provided at the protrusion 13, and the pipe placement rack 7 is installed in the pipe placement rack mounting groove 15. Slides 16 are installed on both sides of the square part 14, and the slides 16 slide in cooperation with the support block 11.
[0037] As attached Figure 5 and 6 As shown, the coil placement assembly 3 in this embodiment includes a connecting block 17 and a coil placement frame 18. One side of the connecting block 17 is fixed to the top of the coil placement frame 18, and the other side of the connecting block 17 is fixedly mounted on the cantilever beam 2 by bolts. The coil placement frame 18 has a coil placement hole 19, and a magnetic coil 20 is installed in the coil placement hole 19. The magnetic coil 20 is used to drive the magnetic abrasive grains 21 placed in the pipe to be processed 5 to move, thereby realizing the grinding of the inner wall of the pipe to be processed 5. Figure 8 As shown. The coil placement rack 18 includes a circular placement part 22 and four arc-shaped protruding placement parts 23. The four arc-shaped protruding placement parts 23 are symmetrically distributed on the outer edge of the circular placement part 22, and two of the arc-shaped protruding placement parts 23 are located at both ends of the connecting block 17. The circular placement part 22 has evenly arranged coil placement holes 19, and each of the four arc-shaped protruding placement parts 23 has a coil placement hole 19.
[0038] As attached Figure 7 As shown, the pipe placement rack 7 in this embodiment is circular. A pipe placement hole 24 to be processed is provided in the middle of the circular pipe placement rack 7. A slot 25 is symmetrically provided in the pipe placement hole 24 to be processed, and the pipe to be processed 5 is fixed by the slot 25.
[0039] As attached Figure 9 As shown, in this embodiment, a support assembly 26 is installed at one end of each of the two grinding rods 4, and the two support assemblies 26 are symmetrically arranged. Each support assembly 26 includes a support base 27, the bottom of which is installed on the base 1, and a connecting rod 28 is installed at the top of the support base 27. One end of the connecting rod 28 is installed on the support base 27, and the other end of the connecting rod 28 is installed with a support rod 29. A support beam 30 is installed at the upper middle part of the support rod 29, and support frames 31 are installed at both ends of the support beam 30. One end of the support frame 31 is connected to the support beam 30, and the other end of the support frame 31 is connected to the grinding rod 4, that is, the grinding rod 4 is located between the two support frames 31.
[0040] In this embodiment, the rotary cylinder 8 drives the pipe placement frame 7 to rotate, and the pipe placement frame 7 drives the pipe to be processed 5 to rotate. The pipe to be processed 5 is fixedly connected to the pipe placement frame 7 through the slot 25 to ensure that the pipe to be processed 5 will not slip during rotation. During the rotation of the pipe to be processed 5, it generates relative movement with the grinding rod 4 to achieve grinding at different positions on the outer surface of the pipe to be processed 5.
[0041] In this embodiment, the magnetic abrasive particles 21 on the inner wall of the pipe to be processed are driven by the coil placement assembly 3 to achieve grinding of the inner wall of the pipe to be processed. Furthermore, through the sliding engagement between the support block 11 and the slide rail 16 on the base 1, and in conjunction with the roller 12 installed at the bottom of the support block 11, the cantilever beam 2 is moved back and forth, thereby realizing the back and forth movement of the magnetic coil 20, and finally achieving grinding at different positions on the inner surface of the pipe to be processed.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A device for grinding the inner and outer walls of a pipe, characterized in that, The base and the cantilever beam are included, the cantilever beam is located above the middle of the base, and a coil placing assembly is arranged at the middle of the cantilever beam; the coil placing assembly is fixedly installed on the lower side of the cantilever beam, and two grinding rod rods penetrating through the coil placing assembly in the axial direction are arranged in the coil placing assembly; the outer walls of the two grinding rod rods are in contact and used for placing a pipeline to be processed. A rotating cylinder placing rack is arranged at one side of the base, a pipeline placing rack is arranged on the side of the rotating cylinder placing rack close to the cantilever beam, a rotating cylinder is arranged in the rotating cylinder placing rack, the movable end of the rotating cylinder is connected with one end of the pipeline placing rack, and the other end of the rotating cylinder placing rack is used for placing the pipeline to be processed.
2. The apparatus for grinding the inner and outer walls of a pipe according to claim 1, wherein Support beams are arranged at the two ends of the cantilever beam respectively, support blocks are arranged at the lower ends of the support beams, rollers are arranged on the lower sides of the support blocks, and the end of the support block away from the support beam is in sliding fit with the base.
3. The apparatus for grinding the inner and outer walls of a pipe according to claim 1, wherein The base is a convex-shaped structure composed of a convex part and a square part, a pipeline placing rack mounting groove is arranged in the convex part, and the pipeline placing rack is mounted in the pipeline placing rack mounting groove; slide ways are arranged on the two sides of the square part, and the slide ways are in sliding fit with the support blocks.
4. The apparatus for grinding the inner and outer walls of a pipe according to claim 1, wherein The coil placing assembly includes a connecting block and a coil placing rack, one side of the connecting block is fixed on the top of the coil placing rack, and the other side of the connecting block is mounted on the cantilever beam; a coil placing hole is arranged on the coil placing rack, and a magnetic induction coil is arranged in the coil placing hole; the magnetic induction coil is used for driving the movement of magnetic abrasive particles placed in the pipeline to be processed, so as to realize the grinding processing of the inner wall of the pipeline to be processed.
5. The apparatus for grinding the inner and outer walls of a pipe according to claim 4, wherein The coil placing rack includes a circular placing part and four arc linear convex placing parts, the four arc linear convex placing parts are symmetrically arranged at the outer edges of the circular placing part, and two arc linear convex placing parts are arranged at the two ends of the connecting block; the circular placing part is provided with uniformly arranged coil placing holes, and one coil placing hole is arranged on each of the four arc linear convex placing parts.
6. The apparatus for grinding the inner and outer walls of a pipe according to claim 1, wherein The pipeline placing rack is circular, a pipeline to be processed placing hole is arranged at the middle of the circular pipeline placing rack, and clamping grooves are symmetrically arranged in the pipeline to be processed placing hole.
7. The apparatus for grinding the inner and outer walls of a pipe according to claim 1, wherein A support assembly is arranged at one end of each of the two grinding rod rods, and the two support assemblies are symmetrically arranged.
8. The apparatus for grinding the inner and outer walls of a pipe according to claim 7, wherein The support assembly includes a support seat, the support seat is mounted on the base, a connecting rod is arranged on the top of the support seat, one end of the connecting rod is mounted on the support seat, a support rod is arranged at the other end of the connecting rod, a support cross beam penetrating through the support rod is arranged at the upper middle of the support rod, support frames are arranged at the two ends of the support cross beam, one end of each of the support frames is connected with the support cross beam, and the other end of each of the support frames is connected with the grinding rod rod.