A ball valve machining machine tool

Abstract

The utility model relates to ball valve processing technical field especially relates to a ball valve processing machine tool, including operation panel, the top of operation panel is fixedly installed with motor no.

Description

Technical Field

[0001] This utility model relates to the field of ball valve processing technology, and in particular to a ball valve processing machine tool. Background Technology

[0002] Ball valves, as a widely used type of valve, are extensively used in industries such as petroleum, chemical, natural gas, and water treatment due to their compact structure, ease of operation, and good sealing performance. One of the core components of a ball valve is the valve core, or ball, and its machining quality directly affects the valve's sealing performance and service life.

[0003] Grinding the ball valve core is a crucial step in ball valve manufacturing. Traditional ball valve core grinding typically uses conventional grinding machines or lathes. According to patent publication number "CN210147164U", a ball valve core semi-processing machine tool is disclosed, including a frame and a support plate mounted on the frame. The support plate has a notch for mounting a matching disc. The disc has a boss in the center for fixing a pressed ball. A processing device for machining the pressed ball is mounted on the edge of the notch. The processing device includes a feed device mounted on the support plate and a machining tool detachably fixedly connected to the feed device. This invention, through its reasonable structure, accelerates processing speed and simplifies the operation process, resulting in low investment costs and a low scrap rate.

[0004] Currently, when processing the valve core of a ball valve, it is necessary not only to select a suitable grinding head according to the specifications of the valve core, but also to tighten and stabilize the position of the valve core during grinding on the sealing surface. However, in most cases, conventional machine tools use multi-point screws or bolts to fix the grinding head and valve core fixing mechanism, which requires the use of additional tools during the assembly and disassembly process, greatly increasing the complexity of the operation. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a ball valve processing machine tool.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a ball valve processing machine tool, including an operating table, a motor is fixedly installed on the top of the operating table via a bracket, a drive shaft is provided inside the motor, and a positioning plate is fixedly installed at the end of the shaft. A connecting plate covers the upper end of the positioning plate, a threaded rod is fixedly installed at the center of the connecting plate, a valve core is slidably sleeved on the surface of the threaded rod, a nut is threadedly installed at the upper end of the threaded rod, and the lower end of the nut is tightly abutted against the end face of the valve core.

[0007] Side plates are fixedly installed on both sides of the operating table, and a top plate is fixedly installed on the upper end of the two side plates distributed along both sides.

[0008] Preferably, an inner sleeve is fixed through both sides of the connecting plate, and a threaded post corresponding to the position of the inner sleeve is welded and fixed to the lower end of the positioning plate. A threaded cap is threadedly installed at the end of the threaded post, and one end of the threaded cap is tightly fitted to the end face of the inner sleeve.

[0009] Preferably, a bearing seat is fixedly installed on the inner side of the side plate distributed on one side, and a shaft is rotatably installed inside the bearing seat. A second motor is fixedly installed on the inner side of the side plate distributed on the other side by a bracket. The second motor has a second rotating shaft for driving inside, and the end of the second rotating shaft and the shaft are connected by a coupling for fixed transmission.

[0010] Preferably, the shaft has symmetrically distributed external threads on its surface, and a threaded sleeve is installed on the surface of the external threads.

[0011] Preferably, a limiting rod is fixedly installed on the outer ring wall of the threaded sleeve, and a limiting hole penetrating through the top plate is provided on the surface of the top plate. The surface of the limiting rod is slidably and tightly attached to the inner wall of the limiting hole.

[0012] Preferably, a connecting rod is fixedly installed at the lower end of the outer ring wall of the threaded sleeve. The connecting rod has an L-shaped structure, and a rod sleeve is slidably sleeved at the horizontal end of the connecting rod. A grinding block is fixedly installed at the outer end of the rod sleeve. The end of the grinding block away from the connecting rod has an arc surface structure, and the inner arc surface of the grinding block is fitted to the surface of the valve core.

[0013] Preferably, the end of the connecting rod is provided with a pin groove, and a retaining pin is slidably sleeved inside the pin groove. The end face of the retaining pin is a curved structure, and a spring is provided inside the pin groove. The two ends of the spring are fixedly installed to the surface of the retaining pin and the inside of the pin groove, respectively.

[0014] Preferably, the inner wall of the sleeve is provided with an arc-shaped groove, and the inside of the arc-shaped groove is provided with an inner arc surface, and the end curved surface of the locking pin is tightly fitted against the inner arc surface of the arc-shaped groove.

[0015] The design scheme proposed in this utility model has the following beneficial effects in application:

[0016] 1. This solution uses a motor to drive the positioning plate and the connecting plate to rotate synchronously, which drives the valve core fixed on the threaded rod to rotate stably, ensuring that the valve core maintains uniform rotation during the processing, thereby effectively improving the overall consistency of the sealing surface grinding. This design uses a nut to lock the valve core to avoid displacement or shaking during processing, making the grinding operation more precise and reliable.

[0017] 2. This solution uses a side plate and a top plate to form a support frame, and sets symmetrically distributed positive and negative external threads on the shaft. With the sliding guidance of the limiting rod in the limiting hole, the two threaded sleeves can move synchronously in opposite directions, thereby driving the grinding block to move horizontally closer to or away from the valve core. This structure ensures that the grinding block always maintains stable contact with the valve core surface and the pressure distribution is uniform.

[0018] 3. This solution incorporates a spring-loaded locking pin structure at the connection between the connecting rod and the sleeve. The curved surface at the end of the locking pin engages with the arc-shaped groove on the inner wall of the sleeve. The locking pin extends and retracts by compressing the spring, making the grinding block replacement convenient and the connection secure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the connection between the motor and the valve core of this utility model;

[0021] Figure 3 This is a front view of the partial disassembly of the connecting rod and the sleeve of this utility model;

[0022] Figure 4 This is a side view of the partial disassembly of the connecting rod and sleeve of this utility model.

[0023] In the diagram: 1. Control panel; 11. Motor 1; 12. Positioning plate; 13. Connecting plate; 14. Threaded rod; 15. Valve core; 16. Nut; 17. Side plate; 18. Top plate; 2. Internal sleeve; 21. Threaded column; 22. Threaded cap; 3. Shaft seat; 31. Shaft; 32. Motor 2; 33. External thread; 34. Threaded sleeve; 35. Limiting hole; 36. Limiting rod; 4. Connecting rod; 41. Rod sleeve; 42. Grinding block; 43. Pin groove; 44. Locking pin; 45. Spring; 46. Arc groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figures 1-4A ball valve processing machine tool includes an operating table 1. A motor 11 is fixedly mounted on the top of the operating table 1 via a bracket. The motor 11 has a drive shaft inside, and a positioning plate 12 is fixedly mounted on the end of the shaft. A connecting plate 13 covers the upper end of the positioning plate 12. A threaded rod 14 is fixedly mounted at the center of the connecting plate 13. A valve core 15 is slidably sleeved on the surface of the threaded rod 14. A nut 16 is threadedly mounted on the upper end of the threaded rod 14. The lower end of the nut 16 is tightly abutted against the end face of the valve core 15. When the motor 11 is powered on, the shaft rotates and drives the positioning plate 12 to rotate, which can realize the linkage of the connecting plate 13, thereby driving the valve core 15 locked on the threaded rod 14 by the nut 16 to rotate synchronously.

[0027] Side plates 17 are fixedly installed on both sides of the operating table 1. A top plate 18 is fixedly installed on the upper end of the two side plates 17 distributed along both sides. The side plates 17 and the top plate 18 can form a supporting frame structure.

[0028] The connecting plate 13 has an inner sleeve 2 fixed through both sides. The lower end of the positioning plate 12 is welded and fixed with a threaded post 21 corresponding to the position of the inner sleeve 2. The end of the threaded post 21 is threaded with a threaded cap 22. One end of the threaded cap 22 is tightly attached to the end face of the inner sleeve 2. When different sizes of threaded rods 14 are required, the threaded cap 22 is rotated to separate it from the threaded post 21, which can realize the disengagement operation of the inner sleeve 2 and the threaded post 21. Thus, the connecting plate 13 and the positioning plate 12 can be quickly disassembled.

[0029] Among them, a bearing seat 3 is fixedly installed on the inner side of the side plate 17 located on one side, and a shaft 31 is rotatably installed inside the bearing seat 3. A motor 32 is fixedly installed on the inner side of the side plate 17 located on the other side by a bracket. The motor 32 has a rotating shaft 2 for driving inside, and the end of the rotating shaft 2 is fixedly connected to the shaft 31 by a coupling. The motor 32 is externally connected to a forward and reverse switch. After the power is turned on, the rotating shaft 2 can rotate in both directions, which can realize the forward and reverse rotation of the shaft 31, thereby causing the external thread 33 to rotate.

[0030] The shaft 31 has symmetrically distributed external threads 33 on its surface. A threaded sleeve 34 is installed on the surface of the external threads 33. When the external threads 33 rotate, the threaded sleeve 34 can move stably.

[0031] A limiting rod 36 is fixedly installed on the outer ring wall of the threaded sleeve 34. A limiting hole 35 is opened on the surface of the top plate 18, penetrating its interior. The surface of the limiting rod 36 is slidably and tightly attached to the inner wall of the limiting hole 35. When it is necessary to move the two grinding blocks 42 closer or further apart, the threaded sleeve 34, after movement, can achieve stable horizontal movement of the two grinding blocks 42 by the effect of the two distributed external threads 33 being arranged in opposite directions, and the limiting rod 36 sliding inside the limiting hole 35. After the grinding blocks 42 move, they only contact the surface of the valve core 15 and form a squeezing effect.

[0032] Among them, a connecting rod 4 is fixedly installed at the lower end of the outer ring wall of the threaded sleeve 34. The connecting rod 4 has an L-shaped structure. A rod sleeve 41 is slidably sleeved at the horizontal end of the connecting rod 4. A grinding block 42 is fixedly installed at the outer end of the rod sleeve 41. The end of the grinding block 42 away from the connecting rod 4 has an arc surface structure. The inner arc surface of the grinding block 42 is fitted to the surface of the valve core 15. The concave arc surface structure of the grinding block 42 can contact the sealing surface of the valve core 15 that needs to be ground. When the valve core 15 rotates continuously, the grinding block 42 contacts the valve core 15 for grinding, which can achieve smooth processing of the sealing surface of the valve core 15.

[0033] The connecting rod 4 has a pin groove 43 at its end. A locking pin 44 is slidably sleeved inside the pin groove 43. The end face of the locking pin 44 is curved. A spring 45 is installed inside the pin groove 43. The two ends of the spring 45 are fixedly installed to the surface of the locking pin 44 and the inside of the pin groove 43, respectively. The spring 45 can ensure the stability of the extension and repositioning of the locking pin 44.

[0034] The inner wall of the sleeve 41 is provided with an arc-shaped groove 46, and the inside of the arc-shaped groove 46 is provided with an inner arc surface. The end curved surface of the locking pin 44 is in close contact with the inner arc surface of the arc-shaped groove 46. When it is necessary to replace or disassemble the grinding block 42 of different specifications, the grinding block 42 is pulled outward first, so that the end curved surface of the locking pin 44 is arc-shaped and pressed against the inner arc surface of the arc-shaped groove 46, and the compression spring 45 is compressed, so that the locking pin 44 enters the interior of the pin groove 43. After being gradually compressed, the locking pin 44 can enter the interior of the pin groove 43, which can realize the separation of the sleeve 41 and the connecting rod 4.

[0035] In practical implementation:

[0036] This solution provides power through a motor 11 located above the operating table 1. The rotating shaft inside the motor 11 drives the positioning plate 12, which is fixedly installed at its end, to rotate. The upper end of the positioning plate 12 is covered by a connecting plate 13. A threaded rod 14 is fixedly installed at the center of the connecting plate 13. The valve core 15 is slidably sleeved on the surface of the threaded rod 14 and locked by a nut 16 threaded on the upper end, which is pressed tightly against the end face of the valve core 15. When the motor 11 is powered on, the rotating shaft drives the positioning plate 12 to rotate, thereby realizing the linkage of the connecting plate 13. This drives the valve core 15, which is locked on the threaded rod 14 by the nut 16, to rotate synchronously. This series of transmission processes ensures that the valve core 15 can rotate stably during the processing, providing the basic motion conditions for the subsequent grinding process.

[0037] Within the support frame formed by the side plates 17 fixedly installed on both sides of the operating table 1 and the top plate 18 at its upper end, a shaft 31 is rotatably mounted on the bearing seat 3 inside one side plate 17. A motor 32 is fixedly mounted on the other side plate 17 via a bracket. The rotating shaft of the motor 32 is connected to the shaft 31 via a coupling. External threads 33 are symmetrically distributed on the surface of the shaft 31, and threaded sleeves 34 are threaded onto the surface of the external threads 33. After the motor 32 is powered on, the rotating shaft 32 drives the shaft 31 to rotate in both directions, causing the external threads 33 to rotate. The threaded sleeve 34 is fixedly mounted on the outer ring wall with a limiting rod 36. The inner wall of the limiting hole 35 on the surface of the top plate 18 slides tightly against the surface of the limiting rod 36, ensuring that the threaded sleeve 34 moves stably and horizontally when the shaft 31 rotates. Since the two external threads 33 on the shaft 31 are set in opposite directions, when the threaded sleeve 34 moves, it will drive the connecting rod 4 fixed at the lower end of its outer ring wall and the grinding block 42 at the end of the rod sleeve 41 to move closer or further away from each other at the same time, thereby adjusting the contact pressure between the grinding block 42 and the surface of the rotary valve core 15, and achieving precise grinding control.

[0038] The grinding block 42 is slidably sleeved onto the end of the connecting rod 4 via a sleeve 41. The connecting rod 4 has an L-shaped structure with a pin groove 43 at its end. A retaining pin 44 is slidably sleeved inside the pin groove 43. The end face of the retaining pin 44 is curved. A spring 45 is installed inside the pin groove 43. The two ends of the spring 45 are fixedly installed to the surface of the retaining pin 44 and the inside of the pin groove 43, respectively, to ensure the stable extension and repositioning of the retaining pin 44. An arc-shaped groove 46 is provided on the inner wall of the sleeve 41, which has an inner arc surface. The curved end face of the retaining pin 44 is tightly fitted against the inner arc surface of the arc-shaped groove 46. When it is necessary to replace the grinding block 42, The operator pulls the grinding block 42 outward, causing the curved surface at the end of the locking pin 44 to be pressed against the inner arc surface of the arc groove 46, compressing the spring 45. The locking pin 44 retracts into the pin groove 43, thereby separating the sleeve 41 from the connecting rod 4. After replacement, the spring 45 pushes the locking pin 44 to reset and re-fit against the arc groove 46, ensuring a firm connection. At the same time, the end of the grinding block 42 away from the connecting rod 4 has an arc surface structure, and its inner arc surface is in contact with the surface of the valve core 15. When the valve core 15 continues to rotate, the grinding block 42 adaptively contacts and presses the sealing surface of the valve core 15, achieving efficient and smooth grinding.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ball valve processing machine tool, comprising an operating table (1), characterized in that: A motor (11) is fixedly installed above the operating table (1) by a bracket. The motor (11) has a drive shaft inside, and a positioning plate (12) is fixedly installed at the end of the shaft. The upper end of the positioning plate (12) is covered by a connecting plate (13). A threaded rod (14) is fixedly installed at the center of the connecting plate (13). A valve core (15) is slidably sleeved on the surface of the threaded rod (14). A nut (16) is threadedly installed at the upper end of the threaded rod (14). The lower end of the nut (16) is tightly abutted against the end face of the valve core (15). Both sides of the operating table (1) are fixedly installed with side plates (17), and a top plate (18) is fixedly installed on the upper end of the two side plates (17) distributed along both sides.

2. The ball valve processing machine tool according to claim 1, characterized in that: Both sides of the connecting plate (13) are fixed with an inner sleeve (2). The lower end of the positioning plate (12) is welded and fixed with a threaded post (21) corresponding to the position of the inner sleeve (2). The end of the threaded post (21) is threaded with a threaded cap (22). One end of the threaded cap (22) is tightly attached to the end face of the inner sleeve (2).

3. The ball valve processing machine tool according to claim 2, characterized in that: A bearing seat (3) is fixedly installed on the inner side of the side plate (17) located on one side. A shaft rod (31) is rotatably installed inside the bearing seat (3). A motor second (32) is fixedly installed on the inner side of the side plate (17) located on the other side by a bracket. A rotating shaft second for driving is provided inside the motor second (32), and the end of the rotating shaft second and the shaft rod (31) are fixedly connected by a coupling.

4. A ball valve processing machine tool according to claim 3, characterized in that: The shaft (31) has symmetrically distributed external threads (33) on its surface, and a threaded sleeve (34) is installed on the surface of the external threads (33).

5. A ball valve processing machine tool according to claim 4, characterized in that: A limiting rod (36) is fixedly installed on the outer ring wall of the threaded sleeve (34), and a limiting hole (35) penetrating through it is opened on the surface of the top plate (18). The surface of the limiting rod (36) is slidably attached to the inner wall of the limiting hole (35).

6. A ball valve processing machine tool according to claim 5, characterized in that: A connecting rod (4) is fixedly installed at the lower end of the outer ring wall of the threaded sleeve (34). The connecting rod (4) has an L-shaped structure. A rod sleeve (41) is slidably sleeved at the horizontal end of the connecting rod (4). A grinding block (42) is fixedly installed at the outer end of the rod sleeve (41). The end of the grinding block (42) away from the connecting rod (4) has an arc surface structure. The inner arc surface of the grinding block (42) is fitted to the surface of the valve core (15).

7. A ball valve processing machine tool according to claim 6, characterized in that: The end of the connecting rod (4) is provided with a pin groove (43), and a locking pin (44) is slidably sleeved inside the pin groove (43). The end face of the locking pin (44) is a curved surface structure. A spring (45) is provided inside the pin groove (43). The two ends of the spring (45) are fixedly installed to the surface of the locking pin (44) and the inside of the pin groove (43), respectively.

8. A ball valve processing machine tool according to claim 7, characterized in that: The inner wall of the sleeve (41) is provided with an arc groove (46), and the inside of the arc groove (46) is provided with an inner arc surface. The end curved surface of the locking pin (44) is in close contact with the inner arc surface of the arc groove (46).

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