Flange ball valve grinding machine

Abstract

The utility model relates to the technical field of ball valve machining, in particular to a flange ball valve grinding machine which comprises a machining grinding machine body, a clamping device is arranged on the end face of the top end of the machining grinding machine body, supporting plates are installed on the left side and the right side of the top end of the machining grinding machine body, and a top plate is arranged at the top ends of the supporting plates. A threaded rod is rotationally connected between the two sets of supporting plates under the top plate, the output end of an electric telescopic rod drives a fixing plate to stretch out and draw back, under hinged connection of a fixing rod and the fixing plate, angle adjustment of the fixing plate with the hinged point of the fixing plate and the fixing rod as the axis can be achieved, different curved surfaces of the valve body can be polished, and the polishing efficiency is improved. When the position of the grinding plate needs to be adjusted, the sliding block linearly moves on the threaded rod under the rotation action of the threaded rod, the sliding block drives the moving plate, and the moving plate drives the lifting air cylinder and the connected grinding plate to adjust the position so as to adapt to the grinding position of the valve body.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve processing, in particular to a flange ball valve grinding machine. Background Art

[0002] As we all know, flange ball valve is a valve whose opening and closing parts (ball) are driven by the valve stem and rotate around the axis of the valve stem. Ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. The flange ball valve standard GB / T21465-2008 "Valve Terminology" defines it as: a valve whose opening and closing parts (ball) are driven by the valve stem and rotate around the axis of the valve stem.

[0003] Ball valves are precision parts that control liquid flow and on-off switching, and require high precision. In order to avoid leakage, extremely high processing accuracy is often required. The ball in the ball valve has a simple structure but is difficult to process, especially when it comes to outer cylindrical surface processing. The grinding of the outer cylindrical surface must maintain the circumference of the outer cylindrical surface while also taking into account the surface roughness.

[0004] During the grinding process of the existing ball valve body, it is not convenient to grind the curved surface of the valve body, and it is not convenient to adjust the position and angle according to the curved surface of the ball valve. After the clamping device is fixed, when grinding the valve body in different directions, the valve body needs to be clamped multiple times, which is more cumbersome. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a flange ball valve grinding machine.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flange ball valve grinder, comprising a processing grinder, a clamping device is provided on the top end face of the processing grinder, support plates are installed on the left and right sides of the top of the processing grinder, a top plate is provided on the top of the support plate, a threaded rod is rotatably connected between two groups of the support plates directly below the top plate, one end of the threaded rod passes through the bottom wall of the support plate and is provided with a first motor, a slider is threadedly connected to the threaded rod, a movable plate is installed at the bottom end of the slider, a lifting cylinder is provided at the bottom end of the movable plate, a mounting plate is provided at the output end of the lifting cylinder, a fixed plate is installed at the bottom end of the mounting plate through an adjusting device, the adjusting device comprises a fixed rod and an electric telescopic rod, the top end of the fixed rod is fixedly connected to the mounting plate, the bottom end of the fixed rod is hingedly connected to the fixed plate, the top end and the output end of the electric telescopic rod are respectively hingedly connected to the mounting plate and the fixed plate, and a grinding plate is rotatably installed at the bottom end of the mounting plate.

[0009] In order to facilitate clamping and fixing the valve body, the utility model is improved in that the clamping device includes a bidirectional screw, rectangular grooves are provided on the left and right sides of the top of the processing grinder, the bidirectional screws are rotatably arranged in two groups of the rectangular grooves, one end of the bidirectional screw passes through the side wall of the rectangular groove and extends to the outer shell of the processing grinder and a second motor is provided, and moving blocks are respectively provided at the left and right ends of the bidirectional screw, a connecting plate is installed at the top of the moving block, and a fixed disk is provided at the top of the connecting plate, and the corresponding side of the two groups of fixed disks is rotatably connected with a rotating shaft, and the corresponding side of the rotating shaft is installed with a clamping block, and the corresponding side of the clamping block is provided with a clamping groove.

[0010] In order to facilitate the rotation of the rotating shaft, the utility model is improved in that the rotating shaft passes through the side wall of the fixed disk and is sleeved with a rotating disk.

[0011] In order to limit the rotating shaft, the utility model has the following improvements: a plurality of connecting holes are arranged in a ring on the turntable, a positioning block is provided on the side wall of the fixed plate close to the turntable, a positioning hole is opened on the positioning block, the hole diameters of the connecting hole and the positioning hole are consistent, a positioning screw is movably inserted into the inner wall of the positioning hole, and the positioning screw passes through the positioning hole and the connecting hole in sequence.

[0012] In order to prevent the slider from rotating, the utility model is improved in that guide rods are provided on the left and right sides of the threaded rod, a sleeve is slidably provided on the guide rod, the sleeve is fixedly connected to the slider, and the guide rods are symmetrically arranged about the central axis of the threaded rod.

[0013] In order to facilitate the rotation of the positioning screw, the utility model is improved in that a knob is provided at the end of the positioning screw.

[0014] In order to prevent the clamping device from damaging the surface of the valve body during the clamping process, the utility model is improved in that rubber pads are arranged in the two groups of clamping grooves.

[0015] In order to ensure the stability and accuracy of the operation of the first motor and the second motor, the utility model is improved in that the first motor and the second motor are both servo motors.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a flange ball valve grinding machine, which has the following beneficial effects:

[0018] The flange ball valve grinder starts the electric telescopic rod through the provided adjustment device, and the output end of the electric telescopic rod drives the fixed plate to extend and retract. Under the hinged connection between the fixed rod and the fixed plate, the angle of the fixed plate can be adjusted with the hinge point of the fixed plate and the fixed rod as the axis, so that different curved surfaces of the valve body can be grinded.

[0019] The flange ball valve grinding machine is provided with a first motor, a threaded rod, a slider and a movable plate. When the position of the grinding plate needs to be adjusted, the first motor is started, the first motor drives the threaded rod, the slider moves linearly on the threaded rod under the rotation of the threaded rod, the slider drives the movable plate, the movable plate drives the lifting cylinder and the connected grinding plate to adjust the position to adapt to the grinding position of the valve body, so as to facilitate comprehensive grinding of the valve body.

[0020] The flange ball valve grinding machine, through the provided clamping device and turntable, the bidirectional screw drives the two groups of moving blocks to move closer to the middle, the moving blocks are provided with connecting pieces and their clamping blocks, so that the two sides of the valve body contact the clamping grooves, the valve body can be clamped and fixed, and then the turntable is rotated, the turntable drives the rotating shaft, and the rotating shaft drives the clamping device to clamp the fixed valve body, the rotation angle of the valve body can be adjusted, and it is convenient to grind different sides, and the positioning screw is passed through the corresponding connecting holes and positioning holes, the positioning screw is passed through the connecting holes and the positioning holes and is tightened with the positioning block to fix it, and the rotating shaft is limited to ensure the stability of the clamping device during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 For the utility model Figure 1 A schematic diagram of the structure at the local enlargement of A;

[0023] Figure 3 For this utility model Figure 1 A schematic diagram of the structure at the local enlargement B;

[0024] Figure 4 It is a schematic diagram of the half-section three-dimensional structure of the support plate and the top plate in the utility model.

[0025] In the figure: 1. processing grinder; 2. support plate; 3. top plate; 4. threaded rod; 5. first motor; 6. slider; 7. moving plate; 8. lifting cylinder; 9. mounting plate; 10. fixed plate; 11. fixed rod; 12. electric telescopic rod; 13. grinding plate; 14. bidirectional screw; 15. rectangular groove; 16. second motor; 17. moving block; 18. connecting plate; 19. fixed disk; 20. rotating shaft; 21. clamping block; 22. clamping groove; 23. rotating disk; 24. connecting hole; 25. positioning block; 26. positioning hole; 27. positioning screw; 28. guide rod; 29. ​​sleeve; 30. knob. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-4 A flange ball valve grinder, comprising a processing grinder 1, a clamping device is provided on the top end face of the processing grinder 1, support plates 2 are installed on the left and right sides of the top of the processing grinder 1, a top plate 3 is provided on the top of the support plate 2, a threaded rod 4 is rotatably connected between two groups of the support plates 2 directly below the top plate 3, one end of the threaded rod 4 passes through the bottom wall of the support plate 2 and is provided with a first motor 5, a slider 6 is threadedly connected to the threaded rod 4, a moving plate 7 is installed at the bottom end of the slider 6, a lifting cylinder 8 is provided at the bottom end of the moving plate 7, a mounting plate 9 is provided at the output end of the lifting cylinder 8, a fixed plate 10 is installed at the bottom end of the mounting plate 9 through an adjusting device, the adjusting device comprises a fixed rod 11 and an electric telescopic rod 12, the top end of the fixed rod 11 is fixedly connected to the mounting plate 9, the bottom end of the fixed rod 11 is hingedly connected to the fixed plate 10, the top end and the output end of the electric telescopic rod 12 are respectively connected to the mounting plate 9 and the The fixed plate 10 is hingedly connected, and a grinding plate 13 is rotatably installed at the bottom end of the mounting plate 9. In this embodiment, the valve body is fixed by a clamping device, and then the lifting cylinder 8 is started to drive the grinding plate 13 to descend, so that the grinding plate 13 can be brought into contact with the top surface of the valve body to grind the surface of the valve body. When it is necessary to adjust the angle of the grinding plate 13, the electric telescopic rod 12 is started, and the output end of the electric telescopic rod 12 drives the fixed plate 10 to extend and retract. Under the hinged connection between the fixed rod 11 and the fixed plate 10, the fixed plate 10 can be adjusted in angle with the hinge point of the fixed plate 10 and the fixed rod 11 as the axis, so that different curved surfaces of the valve body can be polished. When it is necessary to adjust the position of the grinding plate 13, the first motor 5 is started, and the first motor 5 drives the threaded rod 4. The slider 6 moves linearly on the threaded rod 4 under the rotation of the threaded rod 4, and the slider 6 drives the moving plate 7, and the moving plate 7 drives the lifting cylinder 8 and the connected grinding plate 13 to adjust the position to adapt to the grinding position of the valve body.

[0028] In actual use, it is further convenient to clamp and fix the valve body. In this embodiment, the clamping device includes a bidirectional screw 14, and rectangular grooves 15 are provided on the left and right sides of the top of the processing grinder 1. The bidirectional screws 14 are rotatably arranged in two groups of the rectangular grooves 15. One end of the bidirectional screw 14 passes through the side wall of the rectangular groove 15 and extends to the outer shell of the processing grinder 1. A second motor 16 is provided. The left and right ends of the bidirectional screw 14 are respectively provided with moving blocks 17, and a connecting plate 18 is installed on the top of the moving block 17. A fixed disk 19 is provided on the top of the connecting plate 18. The corresponding side of the two groups of the fixed disks 19 A rotating shaft 20 is rotatably connected, and a clamping block 21 is installed on the corresponding side of the rotating shaft 20. A clamping groove 22 is opened on the corresponding side of the clamping block 21. The second motor 16 is started, and the second motor 16 drives the bidirectional screw 14. The bidirectional screw 14 drives the two groups of moving blocks 17 to move toward the middle. The moving block 17 drives the connecting plate 18, the connecting plate 18 drives the fixed disk 19, and the fixed disk 19 drives the clamping block 21, so that both sides of the valve body contact the clamping groove 22, which can clamp and fix the valve body, and then the rotating shaft 20 is rotated, and the rotating shaft 20 drives the clamping device to clamp the fixed valve body. The rotation angle of the valve body can be adjusted to facilitate the grinding of different sides.

[0029] In actual use, it is further convenient to rotate the rotating shaft 20 . In this embodiment, the rotating shaft 20 passes through the side wall of the fixed plate 19 and is sleeved with a rotating disk 23 . The rotating disk 23 facilitates the rotation of the rotating shaft 20 .

[0030] In actual use, the rotating shaft 20 is further limited. In this embodiment, a plurality of connecting holes 24 are arranged in an annular manner on the rotating disk 23. A positioning block 25 is provided on the side wall of the fixed disk 19 close to the rotating disk 23. A positioning hole 26 is opened on the positioning block 25. The hole diameters of the connecting hole 24 and the positioning hole 26 are consistent. A positioning screw 27 is movably inserted into the inner wall of the positioning hole 26. The positioning screw 27 passes through the positioning hole 26 and the connecting hole 24 in sequence. After the disk 23 drives the rotating shaft 20 to adjust, the positioning screw 27 is passed through the corresponding connecting hole 24 and the positioning hole 26, so that the positioning screw 27 passes through the connecting hole 24 and the positioning hole 26 and is tightened with the positioning block 25 to fix it, thereby limiting the rotating shaft 20, that is, limiting the position of the turntable 23 to prevent the turntable 23 from rotating due to external interference. When the positioning screw 27 needs to be removed, it only needs to be rotated in the opposite direction to make the positioning screw 27 leave the positioning hole 26 and the connecting hole 24.

[0031] In actual use, in order to further prevent the slider 6 from rotating, in this embodiment, guide rods 28 are provided on the left and right sides of the threaded rod 4, and a sleeve 29 is slidably provided on the guide rod 28. The sleeve 29 is fixedly connected to the slider 6. The guide rod 28 is symmetrically arranged about the central axis of the threaded rod 4. During the movement of the slider 6, the sleeve 29 drives the sleeve 29 to slide on the guide rod 28, which guides the movement of the slider 6 and prevents the slider 6 from rotating.

[0032] In actual use, in order to further facilitate the rotation of the positioning screw 27 , in this embodiment, a knob 30 is provided at the end of the positioning screw 27 , and the knob 30 facilitates the rotation of the positioning screw 27 .

[0033] In actual use, in order to further prevent the clamping device from damaging the surface of the valve body during the clamping process, in this embodiment, rubber pads are provided in the two groups of clamping grooves 22. The rubber pads protect the valve body during the clamping process and prevent the clamping device from damaging the surface of the valve body during the clamping process.

[0034] In actual use, the stability and accuracy of the operation of the first motor 5 and the second motor 16 are further guaranteed. In this embodiment, the first motor 5 and the second motor 16 are servo motors. The servo motors can perform position, speed and torque control with high precision. The servo motors use closed-loop control and have good stability. They can avoid problems such as stalling and vibration, thereby improving the stability and accuracy of the operation of the first motor 5 and the second motor 16.

[0035] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange ball valve grinding machine, comprising a processing grinding machine (1), characterized in that: The top end surface of the processing grinder (1) is provided with a clamping device, and support plates (2) are installed on the left and right sides of the top of the processing grinder (1), and a top plate (3) is provided at the top of the support plate (2). A threaded rod (4) is rotatably connected between two groups of the support plates (2) directly below the top plate (3), and one end of the threaded rod (4) passes through the bottom wall of the support plate (2) and is provided with a first motor (5). A slider (6) is threadedly connected to the threaded rod (4), and a moving plate (7) is installed at the bottom end of the slider (6), and a lifting cylinder (8) is provided at the bottom end of the moving plate (7). The output end of the lifting cylinder (8) is provided with a mounting plate (9), the bottom end of the mounting plate (9) is mounted with a fixing plate (10) through an adjusting device, the adjusting device comprises a fixing rod (11) and an electric telescopic rod (12), the top end of the fixing rod (11) is fixedly connected to the mounting plate (9), the bottom end of the fixing rod (11) is hingedly connected to the fixing plate (10), the top end and the output end of the electric telescopic rod (12) are hingedly connected to the mounting plate (9) and the fixing plate (10) respectively, and the bottom end of the mounting plate (9) is rotatably mounted with a grinding plate (13).

2. A flange ball valve grinding machine according to claim 1, characterized in that: The clamping device comprises a bidirectional screw (14), rectangular grooves (15) are provided on the left and right sides of the top of the processing grinder (1), the bidirectional screws (14) are rotatably arranged in two groups of the rectangular grooves (15), one end of the bidirectional screw (14) passes through the side wall of the rectangular groove (15) and extends to the outer shell of the processing grinder (1) and is provided with a second motor (16), the left and right ends of the bidirectional screw (14) are respectively provided with moving blocks (17), the top of the moving block (17) is installed with a connecting plate (18), the top of the connecting plate (18) is provided with a fixed disk (19), the corresponding side of the two groups of the fixed disks (19) is rotatably connected with a rotating shaft (20), the corresponding side of the rotating shaft (20) is installed with a clamping block (21), and the corresponding side of the clamping block (21) is provided with a clamping groove (22).

3. A flange ball valve grinding machine according to claim 2, characterized in that: The rotating shaft (20) passes through the side wall of the fixed disk (19) and is sleeved with a rotating disk (23).

4. A flange ball valve grinding machine according to claim 3, characterized in that: A plurality of connecting holes (24) are arranged in a ring shape on the rotating disk (23); a positioning block (25) is provided on a side wall of the fixed disk (19) close to the rotating disk (23); a positioning hole (26) is provided on the positioning block (25); the connecting hole (24) and the positioning hole (26) have the same hole diameter; a positioning screw (27) is movably inserted through the inner wall of the positioning hole (26); and the positioning screw (27) passes through the positioning hole (26) and the connecting hole (24) in sequence.

5. A flange ball valve grinding machine according to claim 4, characterized in that: Guide rods (28) are arranged on the left and right sides of the threaded rod (4), sleeves (29) are slidably arranged on the guide rods (28), the sleeves (29) are fixedly connected to the slider (6), and the guide rods (28) are symmetrically arranged on the left and right sides about the central axis of the threaded rod (4).

6. A flange ball valve grinding machine according to claim 5, characterized in that: A knob (30) is provided at the end of the positioning screw (27).

7. A flange ball valve grinding machine according to claim 6, characterized in that: Rubber pads are arranged in the two groups of clamping grooves (22).

8. The flange ball valve grinding machine according to claim 7, characterized in that: The first motor (5) and the second motor (16) are both servo motors.

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