Polishing fixing tool capable of being positioned
By designing a positionable grinding fixture, using clamps and a worm gear system to fix the steel pipe, and rotating the grinding wheel with a rotating drum, the problems of low efficiency and difficulty in controlling the angle of manual grinding are solved, achieving efficient and uniform bevel grinding and improving welding quality.
Patent Information
- Application Number
- CN202520032815.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-07
AI Technical Summary
In existing technologies, manual grinding of steel pipe bevels is inefficient and the angle is difficult to control, resulting in uneven welding quality.
A positioning grinding fixture was designed, including a positioning cylinder, a rotating cylinder, a clamping plate, and a motor-driven worm gear system. The steel pipe is fixed by the clamping plate, and the rotating cylinder drives the grinding wheel to rotate. Combined with the angle adjustment mechanism, automated grinding is achieved.
This improved the efficiency and quality of steel pipe beveling, reduced the instability of manual operation, and ensured the consistency of welding quality.
Smart Images
Figure CN223656775U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of groove polishing, in particular to a polishing fixing tool with positioning function. BACKGROUND
[0002] The main reason for polishing out a groove when welding a steel pipe is to ensure welding penetration. By polishing out a groove on the steel pipe to be connected by a worker, the groove can enable the arc welding to penetrate into the root of the weld, ensuring root penetration, thereby avoiding welding defects and improving the overall quality of the welded joint.
[0003] When a worker needs to polish out a groove on a steel pipe, the worker needs to hold a grinder to polish the pipe opening. During polishing, the worker needs to rotate the steel pipe while polishing. It is difficult to control the angle of the groove to be polished for steel pipes of different thicknesses. If the polishing force is not properly controlled, the grinder may shake, damaging the steel pipe groove. Steel pipes with unevenly polished grooves or grooves with angles that do not meet the standard may also affect the quality of the welding. SUMMARY
[0004] The utility model aims to provide a polishing fixing tool with positioning function to solve the problem of low efficiency of manual polishing and difficulty in controlling the angle of the groove when polishing a steel pipe.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a polishing fixing tool with positioning function, comprising a positioning cylinder, a rotating drum is rotatably installed at one end inside the positioning cylinder, three clamping plates are arranged in a circular array inside the positioning cylinder, an installation block is fixedly connected to one side of the rotating drum, a sliding block is slidably connected inside the installation block, a fan-shaped limiting tooth plate is fixedly connected to one side of the sliding block, a fixed rod is rotatably installed on one side of the fan-shaped limiting tooth plate, an arc-shaped rack that matches the fan-shaped limiting tooth plate is arranged on one side of the fan-shaped limiting tooth plate. Three clamping plates can clamp steel pipes of different specifications during work, the steel pipe is clamped in the center of the positioning cylinder to facilitate polishing, the rotating drum is rotatably connected to the positioning cylinder to facilitate polishing around the pipe opening, and the steel pipe does not need to be manually rotated and fixed.
[0006] Preferably, a first threaded rod is rotatably installed inside the installation block, a first transmission block is threadedly connected to the outside of the first threaded rod, the first transmission block is in sliding contact with the installation block on the outside, the first transmission block is fixedly connected to the sliding block on one side, and a first operation wheel is fixedly connected to the top end of the first threaded rod.
[0007] Preferably, the fixed rod is internally rotatably connected with a second threaded rod, the fixed rod is internally slidably connected with a second transmission block, the second threaded rod penetrates through the second transmission block and is threadedly connected with the second transmission block, the second threaded rod is fixedly connected with a second operating wheel at the top end, one side of the second transmission block is fixedly connected with an arc-shaped rack, one side of the arc-shaped rack is fixedly connected with a pointer corresponding to the angle label, one side of the fixed rod is fixedly connected with a first motor, and the first motor is fixedly connected with a grinding wheel at the output end.
[0008] Preferably, the rotating drum is fixedly connected with three fixed blocks at one end of the outer side, three rotating wheels are rotatably connected with one side of the three fixed blocks, a center connecting block is arranged between the three rotating wheels, and the three rotating wheels are rotatably connected with the center connecting block.
[0009] Preferably, one side of each of the three clamping plates is fixedly connected with a limiting rod, and one end of each of the three limiting rods penetrates through the positioning cylinder and is slidably connected with the positioning cylinder.
[0010] Preferably, a rotating ring is rotatably connected with one end of the outer side of the positioning cylinder, three connecting rods are hingedly connected with one side of the rotating ring, and one end of each of the three connecting rods is hingedly connected with one of the three limiting rods.
[0011] Preferably, the positioning cylinder is fixedly connected with a fixed plate at the top, the fixed plate is fixedly connected with a second motor at one side, the second motor is fixedly connected with a worm at the output end, one side of the rotating ring is fixedly connected with a worm rack, the worm rack is meshingly connected with the worm, and one side of the positioning cylinder and the mounting block is fixedly connected with a handrail.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] 1、The worm drives the rotating ring to rotate through the worm rack, the rotating ring rotates to drive the connecting rods to pull the limiting rods, so that the three clamping plates are driven to move towards the center to clamp the steel pipe, different specifications of steel pipes can be clamped in the center of the positioning cylinder through the three clamping plates, the deviation of the steel pipe port during grinding by the grinding wheel is prevented, the rotating drum is rotatably connected with the positioning cylinder, and the grinding wheel is rotated around the steel pipe during grinding by the rotating drum, so that the worker is facilitated to grind the steel pipe and the safety of work is improved.
[0014] 2、The angle label is arranged on one side of the fan-shaped limiting toothed plate, the angle of the grinding wheel and the steel pipe is adjusted through the fixed rod, the second transmission block is driven to move through the second operating wheel during work, so that the teeth of the fan-shaped limiting toothed plate and the arc-shaped rack are meshed with each other, and the angle of the grinding wheel and the steel pipe fixedly connected with one side of the fixed rod is prevented from changing during grinding. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the rotating ring structure of this utility model;
[0017] Figure 3 This is a cross-sectional view of the mounting block structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the fan-shaped limiting toothed plate structure of this utility model.
[0019] Labels in the diagram: 1. Positioning cylinder; 2. Rotating cylinder; 3. Mounting block; 4. Slider; 5. First threaded rod; 6. First transmission block; 7. First operating wheel; 8. Fixing rod; 9. Sector-shaped limiting toothed plate; 10. Second threaded rod; 11. Second transmission block; 12. Arc-shaped rack; 13. Pointer; 14. Second operating wheel; 15. First motor; 16. Grinding wheel; 17. Rotating wheel; 18. Center connecting block; 19. Rotary ring; 20. Connecting rod; 21. Limiting rod; 22. Clamping plate; 23. Fixing plate; 24. Second motor; 25. Worm gear; 26. Worm gear rack; 27. Fixing block. Detailed Implementation
[0020] 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.
[0021] Example: Figure 1 - Figure 4 As shown, this utility model provides a technical solution for a positionable grinding fixture, including a positioning cylinder 1. A rotating cylinder 2 is rotatably installed at one end inside the positioning cylinder 1. Three clamping plates 22 are arranged in a circular array inside the positioning cylinder 1. An installation block 3 is fixedly connected to one side of the rotating cylinder 2. A slider 4 is slidably connected inside the installation block 3. A fan-shaped limiting toothed plate 9 is fixedly connected to one side of the slider 4. A fixing rod 8 is rotatably installed on one side of the fan-shaped limiting toothed plate 9. An arc-shaped toothed rack 12 adapted to the fan-shaped limiting toothed plate 9 is provided on one side of the fan-shaped limiting toothed plate 9. During operation, steel of different specifications can be clamped by the three clamping plates 22. The steel pipe is clamped in the center of the positioning cylinder 1 for easy grinding. The rotating cylinder 2 is rotatably connected to the positioning cylinder 1 for easy grinding around the pipe opening. There is no need for manual rotation and fixing of the steel pipe, reducing the workload of workers.
[0022] The first threaded rod 5 is rotatably arranged in the mounting block 3, the first threaded rod 5 is externally threadedly connected with the first transmission block 6, the first transmission block 6 is in sliding contact with the mounting block 3, one side of the first transmission block 6 is fixedly connected with the sliding block 4, and the first threaded rod 5 is fixedly connected with the first operating wheel 7 at the top end.
[0023] The second threaded rod 10 is rotatably arranged in the fixed rod 8, the second transmission block 11 is slidably connected with the fixed rod 8, the second threaded rod 10 penetrates through the second transmission block 11 and is threadedly connected with the second transmission block 11, the second threaded rod 10 is fixedly connected with the second operating wheel 14 at the top end, one side of the second transmission block 11 is fixedly connected with the arc-shaped rack 12, the pointer 13 is provided with an angle label on one side, the arc-shaped rack 12 is fixedly connected with the pointer 13 corresponding to the angle label on one side, the fixed rod 8 is fixedly connected with the first motor 15 on one side, the first motor 15 is fixedly connected with the grinding wheel 16 at the output end, and the pointer 13 facilitates workers to adjust the bevel angle during work.
[0024] The three fixed blocks 27 are fixedly connected with the outer side of one end of the rotating drum 2, the three fixed blocks 27 are rotatably arranged with rotating wheels 17 on one side, the center connecting block 18 is arranged between the three rotating wheels 17, the three rotating wheels 17 are rotatably connected with the center connecting block 18, the center connecting block 18 is located on the center axis of the rotating drum 2, and the rotating wheels 17 are attached to the steel pipe opening during fixing, so that the opening position corresponds to the grinding wheel 16 during work.
[0025] The three clamping plates 22 are fixedly connected with limiting rods 21 on one side, and the three limiting rods 21 penetrate through the positioning cylinder 1 and are slidably connected with the positioning cylinder 1 at one end.
[0026] The rotating ring 19 is rotatably arranged on the outer side of one end of the positioning cylinder 1, the rotating ring 19 is hingedly connected with three connecting rods 20 on one side, and the three connecting rods 20 are respectively hingedly connected with the three limiting rods 21 away from the rotating ring 19.
[0027] The fixed plate 23 is fixedly connected with the positioning cylinder 1 at the top, the second motor 24 is fixedly connected with the fixed plate 23 on one side, the worm 25 is fixedly connected with the output end of the second motor 24, the worm gear rack 26 is fixedly connected with the rotating ring 19 on one side, the worm gear rack 26 is in meshing connection with the worm 25, and the positioning cylinder 1 and the mounting block 3 are fixedly connected with handrails on one side.
[0028] The utility model discloses a positioning cylinder 1 is sleeved in the outside of the steel pipe that needs to be polished, makes one end of the steel pipe and the rotation wheel 17 close, then starts the second motor 24, the second motor 24 drives the worm 25 to rotate, the worm 25 drives the rotating ring 19 to rotate through the worm rack 26, and the rotating ring 19 rotates and makes the connecting rod 20 pull the limiting rod 21, makes three limiting rods 21 move to the center direction of the positioning cylinder 1, thereby drive three clamps 22 to move to the center and clamp the steel pipe, and the different specifications steel pipe can be clamped in the center of the positioning cylinder 1 through three clamps 22, prevent the steel pipe port from deviating when polishing the grinding wheel 16.
[0029] When the angle of the steel pipe bevel polishing needs to be adjusted, the worker can rotate the fixed rod 8 to rotate around the rotating installation place of the fixed rod 8 and the sector limiting toothed plate 9 as the shaft, the pointer 13 on one side of the arc-shaped rack 12 is aligned with the angle that needs to be polished on the angle label, then the second operation wheel 14 is rotated, the second operation wheel 14 drives the second transmission block 11 to move through the second threaded rod 10, so that the second transmission block 11 drives the arc-shaped rack 12 to close one side of the sector limiting toothed plate 9, at this time, the teeth of the sector limiting toothed plate 9 and the arc-shaped rack 12 are engaged with each other, preventing the angle of the fixed polishing grinding wheel 16 on one side of the fixed rod 8 and the steel pipe from changing during work, then the first motor 15 is started, the first motor 15 drives the polishing grinding wheel 16 to rotate, then the worker can rotate the first operation wheel 7, the first operation wheel 7 drives the first threaded rod 5 to rotate, the first transmission block 6 is fixedly connected with the sliding block 4, the sliding block 4 is vertically lowered by the rotation of the first operation wheel 7, at this time, the polishing grinding wheel 16 gradually contacts the steel pipe, and the steel pipe is polished, when the polishing depth of the steel pipe is appropriate, the first operation wheel 7 is stopped, then the rotating drum 2 can be driven to rotate inside the positioning cylinder 1 through the handrail on one side of the mounting block 3, so as to make a circular motion around the steel pipe, and the steel pipe is polished, the angle of the polishing grinding wheel 16 and the steel pipe opening is adjusted and fixed through the fixed rod 8 and the sector limiting toothed plate 9, preventing the angle of the polishing grinding wheel 16 and the steel pipe from changing when polishing the steel pipe, improving the quality of the steel pipe bevel polishing, the rotating drum 2 is rotatably connected with the positioning cylinder 1, the polishing grinding wheel 16 can be rotated around the center of the steel pipe driven by the rotating drum 2, so as to uniformly polish the steel pipe, improving the polishing efficiency of the steel pipe.
[0030] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics thereof. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.
Claims
1. A positionable grinding fixture, comprising a positioning cylinder (1), characterized in that: The positioning cylinder (1) has a rotating cylinder (2) rotatably installed at one end. The positioning cylinder (1) has three clamping plates (22) arranged in a circular array inside. The rotating cylinder (2) has a fixed mounting block (3) fixedly connected to one side. The mounting block (3) has a sliding block (4) slidably connected inside. The sliding block (4) has a fixed fan-shaped limiting tooth plate (9) fixedly connected to one side. The fan-shaped limiting tooth plate (9) has a fixed rod (8) rotatably installed on one side. The fan-shaped limiting tooth plate (9) has an arc-shaped toothed rack (12) adapted to the fan-shaped limiting tooth plate (9) on one side.
2. The positionable grinding fixture according to claim 1, characterized in that: The mounting block (3) has a first threaded rod (5) rotatably mounted inside. The first threaded rod (5) is threadedly connected to a first transmission block (6) on the outside. The outside of the first transmission block (6) is in sliding contact with the mounting block (3). One side of the first transmission block (6) is fixedly connected to the slider (4). The top of the first threaded rod (5) is fixedly connected to a first operating wheel (7).
3. The positionable grinding fixture according to claim 2, characterized in that: The fixed rod (8) has a second threaded rod (10) rotatably installed inside it. The fixed rod (8) has a second transmission block (11) slidably connected inside it. The second threaded rod (10) passes through the second transmission block (11) and is threadedly connected to the second transmission block (11). The top of the second threaded rod (10) is fixedly connected to a second operating wheel (14). One side of the second transmission block (11) is fixedly connected to an arc-shaped rack (12). One side of the fan-shaped limiting tooth plate (9) is provided with an angle label. One side of the arc-shaped rack (12) is fixedly connected to a pointer (13) corresponding to the angle label. One side of the fixed rod (8) is fixedly connected to a first motor (15). The output end of the first motor (15) is fixedly connected to a grinding wheel (16).
4. The positionable grinding fixture according to claim 3, characterized in that: Three fixing blocks (27) are fixedly connected to the outer side of one end of the rotating drum (2). Rotating wheels (17) are rotatably installed on one side of each of the three fixing blocks (27). A central connecting block (18) is provided between the three rotating wheels (17). The three rotating wheels (17) are rotatably connected to the central connecting block (18). The central connecting block (18) is located on the central axis of the rotating drum (2).
5. The positionable grinding fixture according to claim 1, characterized in that: Each of the three clamping plates (22) is fixedly connected to a limiting rod (21) on one side, and one end of each of the three limiting rods (21) passes through the positioning cylinder (1) and is slidably connected to the positioning cylinder (1).
6. The positionable grinding fixture according to claim 5, characterized in that: A rotating ring (19) is rotatably installed on the outer side of one end of the positioning cylinder (1). Three connecting rods (20) are hinged to one side of the rotating ring (19). The ends of the three connecting rods (20) away from the rotating ring (19) are respectively hinged to three limiting rods (21).
7. The positionable grinding fixture according to claim 6, characterized in that: A fixing plate (23) is fixedly connected to the top of the positioning cylinder (1). A second motor (24) is fixedly connected to one side of the fixing plate (23). A worm gear (25) is fixedly connected to the output end of the second motor (24). A worm rack (26) is fixedly connected to one side of the rotating ring (19). The worm rack (26) meshes with the worm gear (25). Handrails are fixedly connected to one side of both the positioning cylinder (1) and the mounting block (3).