Gate valve body flange connecting surface machining device

Abstract

The utility model relates to the technical field of flange machining devices, and discloses a gate valve body flange connecting surface machining device which comprises a valve body flange machining table, a valve body is arranged at the top of the valve body flange machining table, and two connecting flanges are symmetrically arranged at the upper end and the lower end of the valve body. A flange machining clamping assembly used for facilitating clamping is arranged on the valve body flange machining table, the flange machining clamping assembly is arranged on the valve body flange machining table, and connecting flanges of different sizes can be clamped and fixed through installation inserting grooves in the flange machining clamping assembly. And the fixed connecting flange can be driven by the driving motor, so that the connecting flange at the top of the valve body does not need to be disassembled and assembled back and forth, continuous punching can be conducted, the punching machining efficiency is greatly improved, operation is convenient and fast, more accurate and rapid drilling can be conducted on the connecting flange, and use by a user is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of flange processing devices, in particular to a device for processing the flange connection surface of a gate valve body. Background Art

[0002] A gate valve is a disc that opens and closes the flow. The disc's movement is perpendicular to the flow direction. A gate valve can only be fully opened or closed, and cannot be adjusted or throttled. A gate valve seals through contact between the valve seat and the disc. The sealing surface is typically welded with metal materials, such as 1Cr13, STL6, or stainless steel, to increase wear resistance. There are two types of discs: rigid and flexible. Depending on the type of disc, gate valves are classified as either rigid or flexible.

[0003] A search has revealed an authorized Chinese patent publication numbered CN 216029470 U, which discloses a fixture for machining valve body flange holes. This fixture, which belongs to the technical field of valve machining devices, is characterized by comprising a base, a limiting backplate, a clamping backplate, a gantry, and a clamping hydraulic cylinder. The upper end face of the base serves as the valve body support end face; the limiting backplates are symmetrically arranged on the front of the base's support end face; the clamping backplates are symmetrically arranged on the front of the base's support end face; and the clamping backplates are threadedly mounted with clamping screws. The clamping backplates are used to clamp and secure the valve body flange between the two clamping backplates. The gantry is mounted on the base; and the clamping hydraulic cylinder is mounted on the gantry and is used to press the valve body from above. This fixture is suitable for continuous machining of valve body flange holes. As the primary mechanism of a continuous machining center for valve body flange holes, it provides a foundation for improving valve body flange hole machining efficiency.

[0004] The processing device in the above patent still has certain shortcomings. When drilling holes in the valve body flange, the existing valve body flange connection surface processing device can only achieve basic fixation because the traditional clamp can only achieve basic fixation, and the mounting holes on the flange connection surface are evenly distributed. Therefore, each time a hole is drilled, workers are required to disassemble and assemble the valve body back and forth. Not only is the operation cumbersome, but the position after re-clamping is prone to deviation, resulting in a large drilling position error, which is inconvenient for users to use drilling processing. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a device for processing the flange connection surface of a gate valve body, which solves the problem that when drilling holes in the valve body flange, the conventional clamp can only achieve basic fixation, while the mounting holes on the flange connection surface are evenly distributed. Therefore, workers are required to disassemble and assemble the valve body back and forth each time drilling is performed, which is not only cumbersome to operate, but also the position after re-clamping is prone to deviation, resulting in large drilling position errors and inconvenience for users in drilling processing.

[0006] The utility model provides the following technical solution: a gate valve body flange connection surface processing device, comprising a valve body flange processing platform, a valve body body is provided on the top of the valve body flange processing platform, two connecting flanges are symmetrically provided at the upper and lower ends of the valve body body, and a flange processing clamping assembly for convenient clamping is provided on the valve body flange processing platform;

[0007] The flange processing clamping assembly includes a top limiting groove provided in the middle of the top end of the valve body flange processing platform, a rotating chassis is provided in the top limiting groove, an annular limiting groove is provided on the side of the rotating chassis, two side fixing blocks are symmetrically provided on both sides of the top end of the valve body flange processing platform, a movable slot is provided on the side of the side fixing block, a limiting plug block is slidably inserted in the movable slot, the side thread of the side fixing block is inserted with an interference screw, the end of the interference screw is rotatably connected to the side wall of the limiting plug block, the bottom end of the valve body flange processing platform is provided with a driving motor, the driving motor is fixedly connected to the valve body flange processing platform through a motor fixing bracket provided on the driving motor, the output shaft of the driving motor rotates through the valve body flange processing platform, extends into the top limiting groove and is fixedly connected to the middle of the bottom end of the rotating chassis, the top of the rotating chassis is provided with a bottom mounting seat, the top of the bottom mounting seat is provided with a mounting slot, and two inner wall grooves are symmetrically provided on both sides of the inner wall of the mounting slot, and fixed clamping plates are provided in the inner wall grooves.

[0008] Preferred technical solution 1: fixing screws are threadedly inserted into both sides of the bottom mounting seat, and the ends of the fixing screws are rotatably connected to the side walls of the fixed clamping plate.

[0009] Preferred technical solution 2: A side support plate is provided on the side of the top end of the rotating chassis, and the top end of the side support plate supports the side of the valve body.

[0010] Preferred technical solution three: the end of the limiting plug is in a curved arc shape, and the end of the limiting plug extends to the side of the annular limiting groove.

[0011] This solution enables the limiting insert to fit closely to the side wall of the annular limiting groove, thereby making the rotation of the rotating chassis more stable.

[0012] Preferred technical solution four: the opening diameter of the installation slot is larger than the diameter of the connecting flange, and the inner side wall of the fixed clamping plate is arc-shaped.

[0013] This solution enables the inner wall groove on the flange processing clamping assembly to be suitable for clamping connecting flanges of different diameters.

[0014] Preferred technical solution five: The top end surface of the side support plate is in an arc shape for easy support.

[0015] This solution can make the side support plate fit more closely to the side support of the valve body, so that the valve body is supported more stably.

[0016] Compared with the prior art, the present invention provides a device for processing the flange connection surface of a gate valve body, which has the following beneficial effects:

[0017] (1) The present invention provides a flange processing clamping assembly on the valve body flange processing table, wherein the mounting slots in the flange processing clamping assembly can clamp and fix connecting flanges of different sizes, and the connecting flange is fixed on the mounting slot by pushing the fixed clamping plate with a fixed screw, thereby facilitating the punching machine to drill holes in the connecting flange. The fixed connecting flange can also be driven by a driving motor to rotate the chassis to drive the valve body on the bottom mounting seat, thereby allowing the connecting flange on the top of the valve body to be continuously punched without being disassembled and assembled back and forth, thereby greatly improving the efficiency of the punching process, facilitating easy operation, and enabling more accurate and rapid drilling of the connecting flange, making it more convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 A magnified view of the structure of the installation slot;

[0020] Figure 3 For the utility model Figure 1 Schematic diagram of the internal structure of the middle and side fixing blocks;

[0021] Figure 4 It is a schematic side view of the structure of the present utility model.

[0022] In the figure: 1. Valve body flange processing table; 2. Valve body; 3. Connecting flange; 4. Flange processing clamping assembly;

[0023] 401. Top limit groove; 402. Rotating chassis; 403. Annular limit groove; 404. Side fixing block; 405. Movable slot; 406. Limiting plug; 407. Interference screw; 408. Driving motor; 409. Motor fixing bracket; 410. Bottom mounting seat; 411. Mounting slot; 412. Inner wall groove; 413. Fixed clamping plate; 414. Fixed screw; 415. Side support plate. DETAILED DESCRIPTION

[0024] See also Figure 1-4 ,

[0025] Embodiment 1: A device for processing the flange connection surface of a gate valve body includes a valve body flange processing platform 1, a valve body body 2 is provided on the top of the valve body flange processing platform 1, two connecting flanges 3 are symmetrically provided at the upper and lower ends of the valve body body 2, and a flange processing clamping assembly 4 for convenient clamping is provided on the valve body flange processing platform 1.

[0026] The flange processing clamping assembly 4 includes a top limit groove 401 provided in the middle of the top of the valve body flange processing platform 1, a rotating chassis 402 is provided in the top limit groove 401, and an annular limit groove 403 is provided on the side of the rotating chassis 402, and two side fixing blocks 404 are symmetrically provided on both sides of the top of the valve body flange processing platform 1, and a movable slot 405 is provided on the side of the side fixing block 404. A limit plug 406 is slidably inserted into the movable slot 405, and a side thread of the side fixing block 404 is inserted with an interference screw 407, and the end of the interference screw 407 is rotatably connected to the side wall of the limit plug 406. A drive motor 408 is provided at the bottom end of the valve body flange processing platform 1, and the drive motor 408 is fixedly connected to the valve body flange processing platform 1 through a motor fixing bracket 409 provided on it.

[0027] The output shaft of the driving motor 408 rotates and passes through the valve body flange processing table 1 to extend into the top limit groove 401 and is fixedly connected to the middle of the bottom end of the rotating chassis 402. A bottom mounting seat 410 is provided at the top of the rotating chassis 402. A mounting slot 411 is provided at the top of the bottom mounting seat 410. Two inner wall grooves 412 are symmetrically provided on both sides of the inner wall of the mounting slot 411. A fixed clamping plate 413 is provided in each of the inner wall grooves 412. Fixed screws 414 are threadedly inserted on both sides of the bottom mounting seat 410. The end of the fixed screw 414 is rotatably connected to the side wall of the fixed clamping plate 413. A side support plate 415 is provided on the side of the top of the rotating chassis 402. The top of the side support plate 415 supports the side of the valve body 2.

[0028] Embodiment 2: The difference between this embodiment and embodiment 1 is that the end of the limiting plug 406 is in a curved arc shape, and the end of the limiting plug 406 extends to the side of the annular limiting groove 403.

[0029] The limiting insert 406 can fit the side wall of the annular limiting groove 403 , thereby making the rotation of the rotating chassis 402 more stable.

[0030] Embodiment 3: The difference between this embodiment and embodiment 1 lies in that the opening diameter of the mounting slot 411 is larger than the diameter of the connecting flange 3 , and the inner side wall of the fixing clamping plate 413 is in an arc shape.

[0031] The inner wall groove 412 on the flange processing clamping assembly 4 can be clamped and applied to connecting flanges 3 of different diameters.

[0032] Embodiment 4: The difference between this embodiment and embodiment 1 is that the top end surface of the side support plate 415 is in an arc shape for easy support.

[0033] The side support plate 415 fits more closely to the side support of the valve body 2 , so that the valve body 2 is supported more stably.

[0034] In this embodiment, since the existing valve body flange connection surface processing device can only achieve basic fixation when drilling holes in the valve body flange, and the mounting holes on the flange connection surface are evenly distributed, workers are required to disassemble and assemble the valve body back and forth each time drilling. Not only is the operation cumbersome, but the position after re-clamping is prone to deviation, resulting in a large drilling position error, which is inconvenient for users to use drilling processing.

[0035] In summary, in specific implementation, when the user needs to perform drilling processing on the connecting flange 3 on the valve body 2, the user first needs to install the drilling device on the side of the valve body flange processing table 1 so that the drill bit of the drilling machine can be located on the top of the connecting flange 3. Then, the user can insert the connecting flange 3 at the bottom of the valve body 2 into the installation slot 411 in the flange processing clamping assembly 4. The user can rotate the fixing screw 414 so that the fixing screw 414 pushes the fixing clamping plate 413 set in the inner wall groove 412 to clamp and fix the side of the connecting flange 3 inserted in the installation slot 411, and the side of the valve body 2 can be supported by the resistance of the side support plate 415.

[0036] After the punching machine has punched a hole at a position on the connecting flange 3, the user can start the drive motor 408 so that the drive motor 408 drives the rotating chassis 402 set in the top limit groove 401 through the drive shaft, and then the valve body 2 inserted in the installation slot 411 can be rotated, so that the connecting flange 3 on the top of the valve body 2 can be rotated, making it more convenient for the punching machine to punch holes in the connecting flange 3, and there is no need to remove the valve body 2 back and forth from the flange processing clamping assembly 4, which greatly reduces the workers' disassembly and assembly fatigue. The operation is convenient, and the connecting flange 3 can be drilled more accurately and quickly, which is more convenient for users to use.

Claims

1. A gate valve body flange connection surface processing device, comprising a valve body flange processing table (1), characterized in that: A valve body (2) is provided on the top of the valve body flange processing platform (1), two connecting flanges (3) are symmetrically provided at the upper and lower ends of the valve body (2), and a flange processing clamping assembly (4) for convenient clamping is provided on the valve body flange processing platform (1); The flange processing clamping assembly (4) includes a top limiting groove (401) provided in the middle of the top of the valve body flange processing platform (1), a rotating chassis (402) is provided in the top limiting groove (401), and an annular limiting groove (403) is provided on the side of the rotating chassis (402), and two side fixing blocks (404) are symmetrically provided on both sides of the top of the valve body flange processing platform (1), a movable slot (405) is provided on the side of the side fixing block (404), and a limiting plug (406) is slidably inserted in the movable slot (405), and a side thread of the side fixing block (404) is inserted with a contact screw (407), and the end of the contact screw (407) is rotatably connected to the side wall of the limiting plug (406). A driving motor (408) is provided at the bottom end of the valve body flange processing platform (1), and the driving motor (408) is fixedly connected to the valve body flange processing platform (1) through a motor fixing bracket (409) provided on the driving motor (408). The output shaft of the driving motor (408) rotates through the valve body flange processing platform (1) and extends into the top limiting groove (401) and is fixedly connected to the middle part of the bottom end of the rotating chassis (402). A bottom mounting seat (410) is provided at the top end of the rotating chassis (402), and a mounting slot (411) is provided at the top end of the bottom mounting seat (410). Two inner wall grooves (412) are symmetrically provided on both sides of the inner wall of the mounting slot (411), and a fixed clamping plate (413) is provided in each of the inner wall grooves (412).

2. A gate valve body flange connection surface processing device according to claim 1, characterized in that: Fixed screws (414) are threadedly inserted on both sides of the bottom mounting seat (410), and the ends of the fixed screws (414) are rotatably connected to the side walls of the fixed clamping plate (413).

3. A gate valve body flange connection surface processing device according to claim 2, characterized in that: A side support plate (415) is provided on the side of the top end of the rotating chassis (402), and the top end of the side support plate (415) supports the side of the valve body (2).

4. A gate valve body flange connection surface processing device according to claim 3, characterized in that: The end of the limiting plug (406) is in a curved arc shape, and the end of the limiting plug (406) extends to the side of the annular limiting groove (403).

5. The gate valve body flange connection surface processing device according to claim 4, characterized in that: The opening diameter of the installation slot (411) is larger than the diameter of the connecting flange (3), and the inner side wall of the fixed clamping plate (413) is in an arc shape.

6. A gate valve body flange connection surface processing device according to claim 5, characterized in that: The top end surface of the side support plate (415) is in an arc shape for easy support.

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