Manufacturing and forming device for corrosion-resistant oil and gas pipeline isolation valve and its usage method

Abstract

The present invention discloses a manufacturing and forming device for a corrosion-resistant oil and gas pipeline isolation valve, which relates to the technical field of valve manufacturing. The present invention includes a workbench, and a lifting plate is provided at the bottom of the workbench. A first rectangular groove corresponding to the lifting plate is opened at the top of the workbench. Two support blocks for supporting the valve body are fixedly connected to the top of the lifting plate. Grooves are provided on the support blocks, which can make the placement of the valve body more stable. Two sliding blocks are slidably connected to the top of the workbench. Two clamping blocks for clamping the valve body are provided between the two sliding blocks, which is convenient for fixing the valve body. The valve body is clamped by the two clamping blocks, and then driven to rotate by an electric push rod, so that multiple surfaces can be polished in one clamping, and the support block can be driven to move away from the valve during clamping so as not to affect the rotation of the valve body. This not only reduces the number of clamping times, but also improves work efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of valve manufacturing, and particularly relates to a manufacturing and forming device for a corrosion-resistant oil and gas pipeline isolation valve and a using method thereof. Background Art

[0002] Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media. Valves are also classified into cast iron valves, cast steel valves, stainless steel valves, chrome molybdenum steel valves, chrome molybdenum vanadium steel valves, duplex steel valves, plastic valves, non-standard customized valves, etc. according to their materials. The control of valves can adopt various transmission methods, such as manual, electric, hydraulic, pneumatic, turbine, electromagnetic, electro-hydraulic, electro-hydraulic, pneumatic-hydraulic, spur gear, bevel gear drive, etc.; it can act according to a predetermined requirement under the action of a pressure, temperature or other form of sensing signal, or perform simple opening or closing without relying on the sensing signal. The valve relies on a driving or automatic mechanism to make the opening and closing member perform lifting, sliding, swinging or rotating movements, thereby changing the size of its flow passage area to achieve its control function.

[0003] For example, for a corrosion-resistant oil and gas pipeline isolation valve, during the manufacturing and forming process of the valve body, a grinding device needs to be used to perform grinding operations on it to ensure the sealing performance of the connection with the pipeline and a good appearance.

[0004] After retrieval, the invention with the publication number of CN108789030A discloses a grinding device for manufacturing a fluid valve, including a base. One side of the middle part of the top of the base is fixedly connected to the bottom end of a telescopic device, and the top end of the telescopic device is fixedly connected to the bottom end of a connecting rod. The two ends of the connecting rod are respectively fixedly connected to a first lifting device and a second lifting device. This grinding device for manufacturing a fluid valve can make the support plate rise and fall, so that this grinding device for manufacturing a fluid valve can achieve the effect of grinding fluid valves with different thicknesses.

[0005] However, this device still has the following disadvantages during use: when the valve is being ground, multiple different end faces need to be ground. When this device is grinding, it can only grind one face with one clamping. The remaining unground faces need to be re-clamped and then ground, which not only wastes the clamping time but also reduces the working efficiency. Summary of the Invention

[0006] The purpose of the present invention is to provide a manufacturing and forming device for a corrosion-resistant oil and gas pipeline isolation valve and a using method thereof. The valve body is clamped by two clamping blocks, and then driven to rotate by an electric push rod, so that multiple faces can be ground with one clamping, and the support block can be driven to move away from the valve during clamping so as not to affect the rotation of the valve body, which not only reduces the number of clamping times but also improves the working efficiency, and solves the existing technical problems.

[0007] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] A manufacturing and molding device for a corrosion-resistant oil and gas pipeline isolation valve comprises: a workbench, a lifting plate is provided at the bottom of the workbench, a first rectangular groove corresponding to the lifting plate is provided at the top of the workbench, two support blocks for supporting a valve body are fixedly connected to the top of the lifting plate, and a groove is provided on the support block, so that the valve body can be placed more stably;

[0009] The top of the workbench is slidably connected to two sliding blocks, and two clamping blocks for clamping the valve body are arranged between the two sliding blocks to facilitate fixing the valve body;

[0010] The grinding mechanism is arranged on the top of the workbench and is used to grind the end face of the valve body to increase the grinding effect;

[0011] The transmission mechanism is arranged on the top of the workbench and is used to drive the two clamping blocks to move mutually to clamp the valve body and to support the valve body by lifting the lifting plate, so that two actions can be realized in one step, making the operation simple.

[0012] The top of the L-shaped bracket is threaded with a lifting screw, and the top of the lifting screw is fixedly connected to the electromagnetic clutch. The outer wall of the electromagnetic clutch is fixedly provided with an L-shaped connecting plate, and the L-shaped connecting plate is fixedly connected to the top of the electromagnetic clutch. The outer walls of the rotating shaft and the motor output shaft are both fixedly provided with synchronous wheels, and the outer walls of the two synchronous wheels are transmission-connected with the same synchronous belt. The lifting screw can be controlled by the electromagnetic clutch, and the lifting screw and the spline shaft can be driven to rotate simultaneously by one motor, thereby saving power source and reducing manufacturing cost.

[0013] Optionally, the transmission mechanism includes a fixed block fixedly connected to the top of the workbench. One side of the fixed block is rotatably connected through a bidirectional screw. Two connecting blocks are threadedly sleeved on the outer wall of the bidirectional screw. The connecting blocks are fixedly connected to the sliding blocks. By rotating the bidirectional screw, the sliding blocks can be driven to move and approach each other, facilitating driving the clamping blocks to clamp the valve body. One side of the sliding block is slidably connected through two sliding rods. The same connecting plate is fixedly connected to the same side of the two sliding rods. The clamping block is arranged at the other end of the connecting plate. A second spring is sleeved on one of the sliding rods. The two ends of the second spring are respectively fixedly connected to the side of the connecting plate and the side of the sliding block close to each other. A limiting block is fixedly connected to the other end of one of the sliding rods. The limiting block abuts against the side of the sliding block close to each other. The second spring of the sliding block drives the sliding rod to move, so that there is a buffer space between the clamping block and the valve body, preventing the clamping block from bumping against the valve body.

[0014] Optionally, a second rectangular groove corresponding to the sliding block is opened at the top of the workbench. A wedge block is arranged on the inner wall of the second rectangular groove. The wedge block is fixedly connected to the sliding block. The inclined surface of the wedge block contacts one side of the lifting plate. Four limiting columns are slidably connected through the top of the workbench. The bottoms of the four limiting columns are all fixedly connected to the lifting plate. A first spring is sleeved on the outer wall of the limiting column. The two ends of the first spring are respectively fixedly connected to the top of the limiting column and the top of the workbench. By squeezing the lifting plate with two wedge blocks, the lifting plate can slide on the inclined surface of the wedge block, thereby driving the lifting plate to descend. When the two wedge blocks move away from each other, the lifting plate moves upward under the action of the first spring to support the valve body.

[0015] Optionally, a rotating column is rotatably connected to the inner side of the connecting plate. The rotating column is fixedly connected to the clamping block. A gear is fixedly sleeved on the outer wall of one of the connecting plates. A rack meshing with the gear is slidably arranged on the inner side of the connecting plate. An electric push rod is fixedly connected to the top of the connecting plate. The output end of the electric push rod is fixedly connected to one end of the rack. By driving the rack to move through the electric push rod, the gear can be driven to rotate through the rack. The clamping block is driven to rotate through the rotating column, so that the valve body can be driven to rotate to change the grinding surface.

[0016] Optionally, a third spring is sleeved on the outer wall of the other rotating column. The two ends of the third spring are respectively fixedly connected to the side of the connecting plate and the side of the clamping block close to each other. The third spring can prevent the clamping block from rotating by itself, facilitating clamping the valve body.

[0017] Optionally, a clamping groove corresponding to the valve body is opened on the inner side of the clamping block. Through the setting of the clamping groove, the contact area between the clamping block and the valve body can be increased, making the clamping more stable.

[0018] Optionally, one end of the bidirectional screw is fixedly connected with a handwheel. The addition of the handwheel facilitates the rotation of the bidirectional screw, making it more labor-saving during use.

[0019] A method for using a manufacturing and forming device for a corrosion-resistant oil and gas pipeline isolation valve includes the following steps:

[0020] S1. Place the isolation valve on two support blocks on the lifting plate, and then rotate the handwheel. The handwheel drives the bidirectional screw to rotate. The rotation of the bidirectional screw can drive two connecting blocks to approach each other, thereby driving two sliding blocks to approach each other until the two clamping blocks contact the valve body. Continuing to rotate, the two sliding blocks will compress the second spring, and the second spring drives the clamping block to clamp the valve body through the sliding rod. Continuing to rotate the bidirectional screw, driving the sliding block to move, the movement of the sliding block can drive the wedge block to move, thereby driving the lifting plate to descend through the two wedge blocks, driving the two support blocks away from the valve body;

[0021] S2. Start the motor and the electromagnetic clutch. The motor can drive the rotating shaft to rotate through the synchronous pulley and the synchronous belt. The rotating shaft can drive the lifting screw to rotate through the electromagnetic clutch. The rotation of the lifting screw can drive the top plate to descend. At the same time, the motor drives the spline shaft to rotate, and the spline shaft drives the grinding disc to rotate until the grinding disc contacts the valve body. Turn off the electromagnetic clutch so that the rotation of the rotating shaft will not drive the lifting screw to rotate, and grind the valve body through the grinding disc;

[0022] S3. After one side of the valve body is polished, reverse the motor and the electromagnetic clutch, which can drive the lifting screw to reverse. The reverse rotation of the lifting screw drives the grinding disc to rise to a safe height. Start the electric push rod. The electric push rod pushes the rack to move leftward. The movement of the rack can drive the gear to rotate, thereby driving the clamping block to rotate and driving the valve body to rotate 90°. Continue to start the motor and the electromagnetic clutch to drive the grinding disc to descend for grinding;

[0023] S4. After grinding is completed, start the motor to reverse to drive the grinding disc to rise, and then start the electric push rod. The electric push rod drives the rack to move rightward, and drives the rotating column to rotate 180° through the gear to grind the last side;

[0024] S5. After grinding is completed, start the motor and the electric push rod to reset. Reverse the bidirectional screw to drive the two connecting blocks to move away from each other, drive the two sliding blocks to move away from each other. At the same time, the wedge block disengages from the lifting plate, and the limit post drives the lifting plate to rise under the action of the first spring, thereby driving the support block to support the valve body until the two clamping blocks are away from the valve body, and the grinding is completed.

[0025] The embodiments of the present invention have the following beneficial effects:

[0026] The valve body is clamped by two clamping blocks, and then driven to rotate by an electric push rod, so that multiple surfaces can be polished in one clamping. Moreover, when clamping, the support block can be driven away from the valve to prevent it from affecting the rotation of the valve body. This not only reduces the number of clamping times but also improves work efficiency.

[0027] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 3D structural schematic diagram of an embodiment of the present invention;

[0030] Figure 2 Front view structural schematic diagram of an embodiment of the present invention;

[0031] Figure 3 Right view structural schematic diagram of an embodiment of the present invention;

[0032] Figure 4 Connection structural schematic diagram of the sliding block and the clamping block of an embodiment of the present invention;

[0033] Figure 5 Structural schematic diagram of the rotating column of an embodiment of the present invention;

[0034] Figure 6 Third spring connection structural schematic diagram of an embodiment of the present invention;

[0035] Figure 7 Connection structural schematic diagram of the motor and the rotating shaft of an embodiment of the present invention.

[0036] In the figure: 1, workbench; 2, sliding block; 3, connecting block; 4, fixed block; 5, bidirectional screw; 6, first rectangular groove; 7, limit post; 8, first spring; 9, L-shaped bracket; 10, top plate; 11, L-shaped connecting plate; 12, lifting screw; 13, rotating ring; 14, spline shaft; 15, second rectangular groove; 16, wedge block; 17, lifting plate; 18, sliding rod; 19, second spring; 20, connecting plate; 21, rotating column; 22, clamping block; 23, grinding disc; 24, motor; 25, handwheel; 26, electromagnetic clutch; 27, rotating shaft; 28, synchronous belt; 29, support block; 30, card slot; 31, gear; 32, electric push rod; 33, rack; 34, synchronous pulley; 35, third spring; 36, limit block. Detailed implementation mode

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention.

[0039] In order to keep the following description of the embodiments of the present invention clear and concise, the detailed description of known functions and known components is omitted in the present invention.

[0040] Embodiment 1

[0041] As Figures 1-3 shown, the corrosion-resistant oil and gas pipeline isolation valve manufacturing and forming device includes: a workbench 1, a lifting plate 17 is provided at the bottom of the workbench 1, a first rectangular groove 6 corresponding to the lifting plate 17 is opened at the top of the workbench 1, and two support blocks 29 for supporting the valve body are fixedly connected to the top of the lifting plate 17;

[0042] Two sliding blocks 2 are slidably connected to the top of the workbench 1, and two clamping blocks 22 for clamping the valve body are arranged between the two sliding blocks 2;

[0043] A grinding mechanism is arranged on the top of the workbench 1 for grinding the end face of the valve body;

[0044] A transmission mechanism is arranged on the top of the workbench 1 for driving the two clamping blocks 22 to move towards each other to clamp the valve body and for lifting the lifting plate 17 to support the valve body. In the above technical solution, the valve body is placed on two second springs 19, the two clamping blocks 22 are driven by the transmission mechanism to clamp the valve body, and at the same time, the support block 29 is driven downward, and then ground by the grinding mechanism, so that multiple surfaces can be ground in one clamping, reducing the clamping times and improving the work efficiency.

[0045] In one aspect of this embodiment, as Figure 1 、 Figure 2 、 Figure 3 and Figure 7As shown in the figure, the grinding mechanism includes an L-shaped bracket 9 fixedly connected to the top of the workbench 1. A rotating ring 13 is rotatably connected through the top of the L-shaped bracket 9. A spline shaft 14 is slidably connected through the top of the rotating ring 13. A grinding disc 23 is fixedly connected to the bottom of the spline shaft 14. Above the L-shaped bracket 9 is a top plate 10. A motor 24 is fixedly connected to the bottom of the top plate 10. The output shaft of the motor 24 is fixedly connected to the spline shaft 14. A lifting screw rod 12 is threadedly connected through the top of the L-shaped bracket 9. An electromagnetic clutch 26 is fixedly connected to the top of the lifting screw rod 12. An L-shaped connecting plate 11 is fixedly sleeved on the outer wall of the electromagnetic clutch 26. The L-shaped connecting plate 11 is fixedly connected to the top plate 10. A rotating shaft 27 is fixedly connected to the top of the electromagnetic clutch 26. Synchronous pulleys 34 are fixedly sleeved on the outer walls of the rotating shaft 27 and the output shaft of the motor 24. The outer walls of the two synchronous pulleys 34 are drivingly connected by the same synchronous belt 28. In the above technical solution, when the motor 24 and the electromagnetic clutch 26 are started, the motor 24 can drive the rotating shaft 27 to rotate through the synchronous pulley 34 and the synchronous belt 28. The rotating shaft 27 can drive the lifting screw rod 12 to rotate through the electromagnetic clutch 26. The rotation of the lifting screw rod 12 can drive the top plate 10 to descend. At the same time, the motor 24 drives the spline shaft 14 to rotate, and the spline shaft 14 drives the grinding disc 23 to rotate until the grinding disc 23 contacts the valve body. Then, the electromagnetic clutch 26 is closed, so that the rotation of the rotating shaft 27 will not drive the lifting screw rod 12 to rotate, and the valve body is ground by the grinding disc 23.

[0046] In one aspect of this embodiment, as Figures 1-3 shown, the transmission mechanism includes a fixed block 4 fixedly connected to the top of the workbench 1. A bidirectional screw rod 5 is rotatably connected through one side of the fixed block 4. Two connecting blocks 3 are threadedly sleeved on the outer wall of the bidirectional screw rod 5. The connecting blocks 3 are fixedly connected to the sliding blocks 2. Two sliding rods 18 are slidably connected through one side of the sliding blocks 2. The same connecting plate 20 is fixedly connected to the same side of the two sliding rods 18. A clamping block 22 is arranged at the other end of the connecting plate 20. A second spring 19 is sleeved on one of the sliding rods 18. The two ends of the second spring 19 are fixedly connected to the mutually close sides of the connecting plate 20 and the sliding block 2 respectively. A limiting block 36 is fixedly connected to the other end of one of the sliding rods 18. The limiting block 36 abuts against the mutually close side of the sliding block 2. In the above technical solution, the rotation of the bidirectional screw rod 5 can drive the two connecting blocks 3 to approach each other, thereby driving the two sliding blocks 2 to approach each other until the two clamping blocks 22 contact the valve body. Continuing to rotate, the two sliding blocks 2 will compress the second spring 19, and the second spring 19 drives the clamping block 22 to clamp the valve body through the sliding rod 18, so that the valve body can be fixed between the two clamping blocks 22, which is convenient for fixed grinding. Two cylinders can also be fixedly connected to the top of the workbench 1, and the output ends of the cylinders are fixedly connected to the sliding blocks 2, which can also drive the two sliding blocks 2 to move relative to each other.

[0047] In one aspect of this embodiment, as Figure 4As shown, a clamping groove 30 corresponding to the valve body is provided on the inner side of the clamping block 22. In the above technical solution, by providing the clamping groove 30, the contact area between the clamping block 22 and the valve body can be increased, making the clamping more firm and facilitating driving the valve body to rotate.

[0048] Embodiment 2

[0049] Based on Embodiment 1 with improvements: As Figures 1-4 shown, a second rectangular groove 15 corresponding to the sliding block 2 is provided on the top of the workbench 1. A wedge block 16 is provided on the inner wall of the second rectangular groove 15. The wedge block 16 is fixedly connected to the sliding block 2. The inclined surface of the wedge block 16 contacts one side of the lifting plate 17. Four limiting columns 7 penetrate through and are slidably connected to the top of the workbench 1. The bottoms of the four limiting columns 7 are fixedly connected to the lifting plate 17. A first spring 8 is sleeved on the outer wall of the limiting column 7. The two ends of the first spring 8 are respectively fixedly connected to the top of the limiting column 7 and the top of the workbench 1. In the above technical solution, when the two sliding blocks 2 approach each other, they can drive the two wedge blocks 16 to approach each other, and thus can drive the lifting plate 17 to descend through the inclined surface of the wedge block 16, thereby driving the support block 29 to descend so as not to affect the rotation of the valve body. When the two wedge blocks 16 move away from each other, the limiting column 7 drives the lifting plate 17 to rise under the action of the first spring 8, thereby driving the support block 29 to support the valve body.

[0050] As Figure 5 shown, a rotating column 21 is rotatably connected to the inner side of the connecting plate 20. The rotating column 21 is fixedly connected to the clamping block 22. A gear 31 is fixedly sleeved on the outer wall of one of the connecting plates 20. A rack 33 meshing with the gear 31 is slidably provided on the inner side of the connecting plate 20. An electric push rod 32 is fixedly connected to the top of the connecting plate 20. The output end of the electric push rod 32 is fixedly connected to one end of the rack 33. In the above technical solution, when the electric push rod 32 is started, the electric push rod 32 pushes the rack 33 to move leftward. The movement of the rack 33 can drive the gear 31 to rotate, and thus can drive the clamping block 22 to rotate, driving the valve body to rotate, so that the grinding disc 23 can grind other end faces, facilitating grinding.

[0051] As Figure 6 shown, a third spring 35 is sleeved on the outer wall of the other rotating column 21. The two ends of the third spring 35 are respectively fixedly connected to the connecting plate 20 and the side of the clamping block 22 close to each other. In the above technical solution, by setting the third spring 35, the clamping block 22 will not rotate by itself during use, so that it does not need to be rotated by hand during use, facilitating use.

[0052] Embodiment 3

[0053] As Figure 2 and Figure 3As shown, one end of the bidirectional screw 5 is fixedly connected to a handwheel 25. In the above technical solution, the handwheel 25 is provided to facilitate the rotation of the bidirectional screw 5, making it more labor-saving during use.

[0054] The usage method of a corrosion-resistant oil and gas pipeline isolation valve manufacturing and forming device includes the following steps:

[0055] S1. Place the isolation valve on the two support blocks 29 on the lifting plate 17, and then rotate the handwheel 25. The handwheel 25 drives the bidirectional screw 5 to rotate. The rotation of the bidirectional screw 5 can drive the two connecting blocks 3 to approach each other, thereby driving the two sliding blocks 2 to approach each other until the two clamping blocks 22 contact the valve body. Continuing to rotate, the two sliding blocks 2 will compress the second spring 19, and the second spring 19 drives the clamping block 22 to clamp the valve body through the sliding rod 18. Continuing to rotate the bidirectional screw 5, driving the sliding block 2 to move, the movement of the sliding block 2 can drive the wedge block 16 to move, thereby driving the lifting plate 17 to descend through the two wedge blocks 16, driving the two support blocks 29 to separate from the valve body;

[0056] S2. Start the motor 24 and the electromagnetic clutch 26. The motor 24 can drive the rotating shaft 27 to rotate through the synchronous pulley 34 and the synchronous belt 28. The rotating shaft 27 can drive the lifting screw 12 to rotate through the electromagnetic clutch 26. The rotation of the lifting screw 12 can drive the top plate 10 to descend. At the same time, the motor 24 drives the spline shaft 14 to rotate, and the spline shaft 14 drives the grinding disc 23 to rotate until the grinding disc 23 contacts the valve body. Close the electromagnetic clutch 26 so that the rotation of the rotating shaft 27 will not drive the lifting screw 12 to rotate, and grind the valve body through the grinding disc 23;

[0057] S3. After one side of the valve body is ground, reverse the motor 24 and the electromagnetic clutch 26, which can drive the lifting screw 12 to reverse. The reverse rotation of the lifting screw 12 drives the grinding disc 23 to rise to a safe height. Start the electric push rod 32. The electric push rod 32 pushes the rack 33 to move leftward. The movement of the rack 33 can drive the gear 31 to rotate, thereby driving the clamping block 22 to rotate and driving the valve body to rotate 90°. Continue to start the motor 24 and the electromagnetic clutch 26 to drive the grinding disc 23 to descend for grinding;

[0058] S4. After grinding is completed, start the reverse rotation of the motor 24 to drive the grinding disc 23 to rise, and then start the electric push rod 32. The electric push rod 32 drives the rack 33 to move rightward, driving the rotating column 21 to rotate 180° through the gear 31 to grind the last side;

[0059] S5. After the grinding is completed, start the starting motor 24 and the electric push rod 32 for resetting. Rotate the bidirectional screw rod 5 in the reverse direction, drive the two connecting blocks 3 to move away from each other, drive the two sliding blocks 2 to move away from each other. At the same time, the wedge block 16 disengages from the lifting plate 17, and the limit post 7 drives the lifting plate 17 to rise under the action of the first spring 8, so as to drive the support block 29 to support the valve body until the two clamping blocks 22 are far away from the valve body, and the grinding is completed.

[0060] It should be noted that in the description of this specification, the descriptions such as "first", "second", etc. are only used to distinguish each feature, and have no actual order or directional meaning, and this application is not limited thereto.

[0061] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0062] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. Manufacturing and molding device for corrosion-resistant oil and gas pipeline isolation valves, It is characterized in that include: A workbench (1), wherein a lifting plate (17) is provided at the bottom of the workbench (1), a first rectangular groove (6) corresponding to the lifting plate (17) is provided at the top of the workbench (1), and two support blocks (29) for supporting a valve body are fixedly connected to the top of the lifting plate (17); The top of the workbench (1) is slidably connected to two sliding blocks (2), and two clamping blocks (22) for clamping the valve body are arranged between the two sliding blocks (2); A grinding mechanism, arranged on the top of the workbench (1) and used for grinding the end surface of the valve body; A transmission mechanism, disposed on the top of the workbench (1), and used to drive the two clamping blocks (22) to move relative to each other to clamp the valve body, and to support the valve body by lifting and lowering the lifting plate (17); The grinding mechanism comprises an L-shaped bracket (9) fixedly connected to the top of the workbench (1), a rotating ring (13) passing through the top of the L-shaped bracket (9) and being rotatably connected, a spline shaft (14) passing through the top of the rotating ring (13) and being slidably connected, a grinding sheet (23) being fixedly connected to the bottom of the spline shaft (14), a top plate (10) being provided above the L-shaped bracket (9), a motor (24) being fixedly connected to the bottom of the top plate (10), an output shaft of the motor (24) being fixedly connected to the spline shaft (14), and the L-shaped bracket (9) having a plurality of slots and a plurality of slots. A lifting screw (12) is threadedly connected through the top, an electromagnetic clutch (26) is fixedly connected to the top of the lifting screw (12), an L-shaped connecting plate (11) is fixedly sleeved on the outer wall of the electromagnetic clutch (26), the L-shaped connecting plate (11) is fixedly connected to the top plate (10), a rotating shaft (27) is fixedly connected to the top of the electromagnetic clutch (26), the outer walls of the rotating shaft (27) and the output shaft of the motor (24) are both fixedly sleeved with synchronous wheels (34), and the outer walls of the two synchronous wheels (34) are transmission-connected with the same synchronous belt (28); The transmission mechanism comprises a fixed block (4) fixedly connected to the top of the workbench (1), a bidirectional screw (5) passing through one side of the fixed block (4) for rotational connection, two connecting blocks (3) being threadedly sleeved on the outer wall of the bidirectional screw (5), the connecting block (3) being fixedly connected to the sliding block (2), two sliding rods (18) passing through one side of the sliding block (2) for sliding connection, the same side of the two sliding rods (18) being fixedly connected to the same connecting plate (20), the clamping block (22) being arranged at the other end of the connecting plate (20), one of the sliding rods (18) being sleeved with a second spring (19), the two ends of the second spring (19) being respectively fixedly connected to the connecting plate (20) and the side of the sliding block (2) close to each other, the other end of one of the sliding rods (18) being fixedly connected to a limiting block (36), the limiting block (36) being in conflict with the side of the sliding block (2) close to each other; A rotating column (21) is rotatably connected to the inner side of the connecting plate (20), and the rotating column (21) is fixedly connected to the clamping block (22). A gear (31) is fixedly sleeved on the outer wall of one of the connecting plates (20). A rack (33) meshing with the gear (31) is slidably arranged on the inner side of the connecting plate (20). An electric push rod (32) is fixedly connected to the top of the connecting plate (20), and the output end of the electric push rod (32) is fixedly connected to one end of the rack (33).

2. The manufacturing and forming device for a corrosion-resistant oil and gas pipeline isolation valve according to claim 1, characterized in that, a second rectangular groove (15) corresponding to the sliding block (2) is formed in the top of the workbench (1). A wedge block (16) is arranged on the inner wall of the second rectangular groove (15). The wedge block (16) is fixedly connected to the sliding block (2). The inclined surface of the wedge block (16) contacts one side of the lifting plate (17). Four limiting columns (7) are slidably connected through the top of the workbench (1). The bottoms of the four limiting columns (7) are all fixedly connected to the lifting plate (17). A first spring (8) is sleeved on the outer wall of the limiting column (7), and both ends of the first spring (8) are fixedly connected to the top of the limiting column (7) and the top of the workbench (1) respectively.

3. The manufacturing and forming device for a corrosion-resistant oil and gas pipeline isolation valve according to claim 2, characterized in that, a third spring (35) is sleeved on the outer wall of the other rotating column (21), and both ends of the third spring (35) are fixedly connected to the sides of the connecting plate (20) and the clamping block (22) close to each other.

4. The manufacturing and forming device for a corrosion-resistant oil and gas pipeline isolation valve according to claim 3, characterized in that, a clamping groove (30) corresponding to the valve body is formed in the inner side of the clamping block (22).

5. The manufacturing and forming device for a corrosion-resistant oil and gas pipeline isolation valve according to claim 4, characterized in that, a hand wheel (25) is fixedly connected to one end of the bidirectional screw rod (5).

6. The using method of the manufacturing and forming device for a corrosion-resistant oil and gas pipeline isolation valve according to claim 5, characterized in that, comprises the following steps: S1. Place the isolation valve on the two support blocks (29) on the lifting plate (17), and then rotate the hand wheel (25). The hand wheel (25) drives the bidirectional screw rod (5) to rotate. The rotation of the bidirectional screw rod (5) drives the two connecting blocks (3) to approach each other, thereby driving the two sliding blocks (2) to approach each other until the two clamping blocks (22) contact the valve body. Continue to rotate, and the two sliding blocks (2) will compress the second spring (19). The second spring (19) drives the clamping block (22) to clamp the valve body through the sliding rod (18). Continuing to rotate the bidirectional screw rod (5), driving the sliding block (2) to move. The movement of the sliding block (2) drives the wedge block (16) to move, thereby driving the lifting plate (17) to descend through the two wedge blocks (16), driving the two support blocks (29) to separate from the valve body; S2. Start the motor (24) and engage the electromagnetic clutch (26). The motor (24) drives the rotating shaft (27) to rotate through the synchronous pulley (34) and the synchronous belt (28). The rotating shaft (27) drives the lifting screw (12) to rotate through the electromagnetic clutch (26). The rotation of the lifting screw (12) drives the top plate (10) to descend. At the same time, the motor (24) drives the spline shaft (14) to rotate, and the spline shaft (14) drives the grinding disc (23) to rotate until the grinding disc (23) contacts the valve body, then disengage the electromagnetic clutch (26) so that the rotation of the rotating shaft (27) will not drive the lifting screw (12) to rotate, and grind the valve body with the grinding disc (23). S3. After one side of the valve body is ground, start the motor (24) to reverse and engage the electromagnetic clutch (26), driving the lifting screw (12) to reverse. The reverse rotation of the lifting screw (12) drives the grinding disc (23) to rise to a safe height. Then start the electric push rod (32). The electric push rod (32) pushes the rack (33) to move leftward. The movement of the rack (33) drives the gear (31) to rotate, thereby driving the clamping block (22) to rotate and driving the valve body to rotate 90°. Then continue to start the motor (24) and the electromagnetic clutch (26) to drive the grinding disc (23) to descend for grinding. S4. After grinding is completed, start the motor (24) to reverse to drive the grinding disc (23) to rise, and then start the electric push rod (32). The electric push rod (32) drives the rack (33) to move rightward, driving the rotating column (21) to rotate 180° through the gear (31) to grind the last side. S5. After grinding is completed, start the motor (24) and the electric push rod (32) for resetting. Rotate the bidirectional screw (5) in the reverse direction, driving the two connecting blocks (3) to move away from each other, driving the two sliding blocks (2) to move away from each other. At the same time, the wedge block (16) disengages from the lifting plate (17), and the limit post (7) drives the lifting plate (17) to rise under the action of the first spring (8), thereby driving the support block (29) to support the valve body until the two clamping blocks (22) move away from the valve body, and the grinding is completed.

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