A magnetic lapping device for machining a ball valve trim

Abstract

This utility model discloses a magnetic grinding device for processing ball valve cores, including a support base and a support frame mounted on the support base. A vent hole is provided on the docking rod, an air bladder is provided on the outer side of the docking rod, and a cross block is provided at the bottom of the docking rod. A base is provided on the support base, and a pair of grinding frames are provided on the base. Multiple threaded rods are provided on the grinding frames, and magnetic pole blocks are provided on the threaded rods. A rotating seat is provided on the fixed base, and a docking chuck is provided on the rotating seat. The docking chuck has a cross groove. The air bladder of this magnetic grinding device for ball valve cores, with its flexible characteristics and anti-slip surface, fully conforms to the inner wall of the ball valve core, forming a uniform supporting force. This design effectively avoids the uneven force or positional displacement problems that may occur with traditional fixing methods, ensuring that the valve core remains stably centered during rotation and improving the grinding efficiency of the valve core.

Description

Technical Field

[0001] This utility model belongs to the technical field of ball valve production and processing equipment, specifically relating to a magnetic abrasive device for processing ball valve cores. Background Technology

[0002] A magnetic abrasive device for ball valve cores is a specialized equipment used for precision grinding and polishing of the ball valve core surface. Its core principle is to control the movement of magnetic abrasive through the action of a magnetic field, thereby achieving efficient processing of the valve core surface. In the manufacturing or repair process of ball valves, the valve core needs to have a high-precision and smooth surface to ensure sealing performance and service life. Traditional mechanical grinding methods may be limited by the ability to handle complex curved surfaces or micro-defects, while magnetic abrasive technology, driven by a magnetic field, can more flexibly adapt to the shape of the ball and uniformly remove tiny burrs, scratches or oxide layers from the material surface.

[0003] However, existing magnetic polishing devices for ball valve cores typically use rigid fixation of the ball valve core, which may lead to uneven force on the core and subsequent displacement. This prevents the ball valve core from rotating smoothly, thus affecting the accuracy of the magnetic polishing process and reducing the polishing efficiency of the ball valve core. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic grinding device for processing ball valve cores, in order to solve the problem mentioned in the background art that the existing magnetic grinding devices for ball valve cores usually rigidly fix the ball valve core, which may lead to uneven force on the valve core, resulting in displacement and preventing the ball valve core from rotating smoothly, thereby affecting the accuracy of the ball valve core during magnetic grinding and reducing the polishing efficiency of the ball valve core.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a magnetic abrasive device for processing ball valve cores, comprising a support base and a support frame disposed on the support base;

[0006] The support frame is equipped with a lifting screw inside, and a lifting motor is installed at the top of the support frame. The lifting motor is powered by an external power source. A mounting bracket is installed on the lifting screw, and a rotating motor is installed on the mounting bracket. The rotating motor is also powered by an external power source. A docking rod is installed below the mounting bracket, and the docking rod has an air hole. An air bladder is installed on the outside of the docking rod, and a cross block is installed at the bottom of the docking rod. A base is installed on the support seat, and a pair of grinding frames are installed on the base. Multiple threaded rods are installed on the grinding frames, and magnetic pole blocks are installed on the threaded rods. A retaining ring is installed at the top and bottom of the grinding frames. A fixed seat is installed at the center of the base, and a rotating seat is installed on the fixed seat. A docking chuck is installed on the rotating seat, and a cross groove is installed on the docking chuck.

[0007] Preferably, the support frame and the support base are fixedly installed, the lifting screw is rotatably connected to the support frame, the lifting screw is fixedly connected to the lifting motor, and the lifting motor can drive the lifting screw to rotate.

[0008] Preferably, the mounting bracket is threadedly connected to the lifting screw, the rotating motor is fixedly mounted to the mounting bracket, the docking rod is fixedly connected to the output shaft on the rotating motor, the air hole is integrally formed with the docking rod, and the air hole can inflate the airbag.

[0009] Preferably, the docking chuck is welded to the rotating seat, the cross block at the bottom of the docking rod can be inserted into the cross groove, the ball valve core can be placed on the rotating seat, the fixed seat is welded to the base, and the rotating seat and the fixed seat are rotatably connected.

[0010] Preferably, the threaded rod is threadedly connected to the grinding outer frame, and the magnetic pole blocks on the threaded rod are alternately arranged with N poles and S poles. The magnetic pole blocks can attract magnetic abrasive, and the magnetic abrasive can grind the ball valve core.

[0011] Preferably, a sliding block is provided at the bottom of the grinding frame, the sliding block is welded to the grinding frame, and the sliding block can slide inside the moving groove.

[0012] Preferably, the base has movable grooves on both sides, and an adjusting screw is installed inside the movable groove. The adjusting screw is threadedly connected to the sliding block, and a knob is installed at one end of the adjusting screw. The adjusting screw is rotatably connected to the base.

[0013] Compared with the prior art, this utility model provides a magnetic abrasive device for processing ball valve cores, which has the following beneficial effects:

[0014] 1. Through the arrangement of magnetic pole blocks, grinding outer frame, sliding block, adjusting screw, knob, moving groove and threaded rod, the lifting motor drives the lifting screw to rotate, which drives the mounting frame to move up and down, so that the cross structure at the bottom of the docking rod is precisely inserted into the cross groove on the rotating seat. The rotating motor drives the rotating seat to rotate smoothly. At the same time, the external inflation device inflates the air bag through the air hole. The inflated air bag, with its flexible characteristics and anti-slip surface, fully fits the inner wall of the ball valve core, forming a uniform support force. This design effectively avoids the problem of uneven force or positional displacement that may be caused by traditional fixing methods, ensuring that the valve core always remains stable and centered during rotation, and improving the grinding efficiency of the valve core.

[0015] 2. Through the arrangement of magnetic pole blocks, grinding outer frame, sliding block, adjusting screw, knob, moving groove and threaded rod, the grinding outer frame works in conjunction with the adjusting screw through the bottom sliding mechanism to achieve opening and closing movement, providing convenient operating space for the placement of the ball valve core. The adjustable threaded rod drives the magnetic pole blocks to contact the valve core. This structural design cleverly adapts to the processing needs of valve cores of different sizes. The flexible adjustment of the magnetic pole blocks not only enhances the versatility of the equipment, but also ensures the positioning accuracy of the valve core during the processing through magnetic adsorption. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the grinding frame structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the docking rod structure of this utility model.

[0019] In the diagram: 1. Support base; 2. Support frame; 3. Lifting screw; 4. Lifting motor; 5. Mounting bracket; 6. Rotating motor; 7. Connecting rod; 8. Ball valve core; 9. Magnetic abrasive; 10. Grinding frame; 11. Knob; 12. Rotating seat; 13. Adjusting screw; 14. Sliding block; 15. Base; 16. Snap ring; 17. Magnetic pole block; 18. Threaded rod; 19. Moving groove; 20. Fixed seat; 21. Connecting chuck; 22. Cross groove; 23. Air hole; 24. Airbag; 25. Cross 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] This utility model provides, for example Figures 1-3 The magnetic abrasive device shown is used for processing ball valve cores, including a support base 1 and a support frame 2 disposed on the support base 1;

[0022] The support frame 2 is equipped with a lifting screw 3 inside, and a lifting motor 4 is installed on the top of the support frame 2. The lifting motor 4 is powered by an external power source. A mounting frame 5 is installed on the lifting screw 3. A rotating motor 6 is installed on the mounting frame 5. The rotating motor 6 is powered by an external power source. A docking rod 7 is installed below the mounting frame 5. A vent 23 is installed on the docking rod 7. An air bladder 24 is installed on the outside of the docking rod 7. A cross block 25 is installed at the bottom of the docking rod 7. A base 15 is installed on the support base 1. A pair of grinding frames 10 are installed on the base 15. Multiple threaded rods 18 are installed on the grinding frames 10. Magnetic pole blocks 17 are installed on the threaded rods 18. A retaining ring 16 is installed at the top and bottom of the grinding frames 10. A fixed seat 20 is installed at the center of the base 15. A rotating seat 12 is installed on the fixed seat 20. A docking chuck 21 is installed on the rotating seat 12. A cross groove 22 is installed on the docking chuck 21.

[0023] In this embodiment, the magnetic abrasive device for the ball valve core is a specialized device for precision grinding and polishing of the ball valve core surface. Its core principle is to control the movement of magnetic abrasive through magnetic field, thereby achieving efficient processing of the valve core surface. The specific usage method of the magnetic abrasive device for the ball valve core is as follows: First, the grinding frame 10 needs to be separated by adjusting screw 13. Then, the mounting bracket 5 is raised by lifting screw 3. At this time, the ball valve core 8 to be ground can be placed on the rotating seat 12. Then, the mounting bracket 5 is lowered so that the cross block 25 on the docking rod 7 aligns with the cross groove 22. By adjusting screw 13, the grinding frame 10 can be assembled so that the magnetic abrasive contacts the ball valve core surface. Finally, the rotating motor 6 is started to drive the rotating seat 12 and the ball valve core to rotate, thereby grinding and polishing the surface of the ball valve core.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, support frame 2 is fixedly installed with support base 1, lifting screw 3 is rotatably connected with support frame 2, lifting screw 3 is fixedly connected with lifting motor 4, lifting motor 4 can drive lifting screw 3 to rotate, mounting frame 5 is threadedly connected with lifting screw 3, rotating motor 6 is fixedly installed with mounting frame 5, docking rod 7 is fixedly connected with output shaft on rotating motor 6, air hole 23 is integrally formed with docking rod 7, air hole 23 can inflate airbag 24, docking chuck 21 is welded to rotating seat 12, cross block 25 at the bottom of docking rod 7 can be inserted into cross groove 22, ball valve core 8 can be placed on rotating seat 12, fixed seat 20 is welded to base 15, rotating seat 12 is rotatably connected to fixed seat 20, threaded rod 18 is threadedly connected to grinding outer frame 10, magnetic pole blocks 17 on threaded rod 18 are alternately set with N pole and S pole, magnetic pole blocks 17 can attract magnetic abrasive 9, magnetic abrasive 9 can grind ball valve core.

[0025] Preferably, by configuring the rotary motor 6, lifting motor 4, lifting screw 3, mounting bracket 5, air hole 23, air bladder 24, cross block 25, cross groove 22, docking chuck 21, rotating seat 12, and docking rod 7, after the ball valve core is placed on the rotating seat 12, the lifting motor 4 is started to drive the lifting screw 3 to rotate. At the same time, the mounting bracket 5 can move up and down on the lifting screw 3. The cross block 25 at the bottom of the docking rod 7 can be inserted into the cross groove 22 on the docking chuck 21. The rotary motor 6 can drive the rotating seat 12 to rotate. The air hole 23 is connected to an external inflation device to inflate the air bladder 24, causing the air bladder 24 to expand. The surface of the air bladder 24 can be provided with an anti-slip outer layer. When the air bladder 24 completely fills the inner wall of the ball valve core 8, it can fix and support the ball valve core 8. At the same time, the air bladder 24 is a flexible support with comprehensive support, which can avoid uneven force on the valve core or displacement, and ensure that the valve core can rotate smoothly.

[0026] like Figure 1 and Figure 2 As shown, a sliding block 14 is provided at the bottom of the grinding frame 10. The sliding block 14 is welded to the grinding frame 10. The sliding block 14 can slide inside the moving groove 19. Moving grooves 19 are provided on both sides of the base 15. An adjusting screw 13 is provided inside the moving groove 19. The adjusting screw 13 is threadedly connected to the sliding block 14. A knob 11 is provided at one end of the adjusting screw 13. The adjusting screw 13 is rotatably connected to the base 15.

[0027] Preferably, through the arrangement of the magnetic pole block 17, grinding outer frame 10, sliding block 14, adjusting screw 13, knob 11, moving groove 19 and threaded rod 18, the grinding outer frame 10 can be moved by the sliding block 14 at the bottom cooperating with the adjusting screw 13. The open grinding outer frame 10 facilitates the placement of the ball valve core 8. By rotating the threaded rod 18, the magnetic pole block 17 can be made to contact the ball valve core 8, which is suitable for ball valve cores 8 of different sizes and improves the practicality of the device.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic abrasive device for processing ball valve cores, comprising a support base (1) and a support frame (2) disposed on the support base (1); Its features are: The support frame (2) is equipped with a lifting screw (3) inside. A lifting motor (4) is installed on the top of the support frame (2). The lifting motor (4) is powered by an external power source. A mounting frame (5) is installed on the lifting screw (3). A rotating motor (6) is installed on the mounting frame (5). The rotating motor (6) is powered by an external power source. A docking rod (7) is installed below the mounting frame (5). An air hole (23) is provided on the docking rod (7). An airbag (24) is provided on the outside of the docking rod (7). A cross block (25) is provided at the bottom of the docking rod (7). The support base (1) is provided with a base (15), the base (15) is provided with a pair of grinding frames (10), the grinding frames (10) are provided with a plurality of threaded rods (18), the threaded rods (18) are provided with magnetic pole blocks (17), the grinding frames (10) are provided with retaining rings (16) at the top and bottom respectively, the base (15) is provided with a fixed seat (20) at the center, the fixed seat (20) is provided with a rotating seat (12), the rotating seat (12) is provided with a docking chuck (21), and the docking chuck (21) is provided with a cross groove (22).

2. The magnetic abrasive device for processing ball valve cores according to claim 1, characterized in that: The support frame (2) is fixedly installed with the support base (1), the lifting screw (3) is rotatably connected with the support frame (2), the lifting screw (3) is fixedly connected with the lifting motor (4), and the lifting motor (4) can drive the lifting screw (3) to rotate.

3. The magnetic abrasive device for processing ball valve cores according to claim 2, characterized in that: The mounting bracket (5) is threadedly connected to the lifting screw (3), the rotating motor (6) is fixedly installed on the mounting bracket (5), the docking rod (7) is fixedly connected to the output shaft on the rotating motor (6), the air hole (23) is integrally formed with the docking rod (7), and the air hole (23) can inflate the airbag (24).

4. The magnetic abrasive device for processing ball valve cores according to claim 3, characterized in that: The docking chuck (21) is welded to the rotating seat (12), the cross block (25) at the bottom of the docking rod (7) can be inserted into the cross groove (22), the ball valve core (8) can be placed on the rotating seat (12), the fixed seat (20) is welded to the base (15), and the rotating seat (12) is rotatably connected to the fixed seat (20).

5. A magnetic abrasive device for processing ball valve cores according to claim 4, characterized in that: The threaded rod (18) is threadedly connected to the grinding frame (10). The magnetic pole blocks (17) on the threaded rod (18) are alternately arranged with N poles and S poles. The magnetic pole blocks (17) can attract magnetic abrasive (9). The magnetic abrasive (9) can grind the ball valve core.

6. The magnetic abrasive device for processing ball valve cores according to claim 1, characterized in that: The grinding frame (10) has a sliding block (14) at its bottom. The sliding block (14) is welded to the grinding frame (10) and can slide inside the moving groove (19).

7. A magnetic abrasive device for processing ball valve cores according to claim 6, characterized in that: The base (15) has movable grooves (19) on both sides. An adjusting screw (13) is provided inside the movable groove (19). The adjusting screw (13) is threadedly connected to the sliding block (14). A knob (11) is provided at one end of the adjusting screw (13). The adjusting screw (13) is rotatably connected to the base (15).

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