A lining welding device for manufacturing lining butterfly valves

Abstract

This utility model discloses a lining welding device for manufacturing lining butterfly valves, specifically relating to the field of lining butterfly valve production technology. It includes a base, with a fixed frame and support frame fixedly mounted on the top of the base. The fixed frame is located on one side of the base, and two fixed blocks are located on one side of the fixed frame. A clamping arm mechanism is located on one side of each fixed block. The clamping arm mechanism includes a first electric telescopic rod fixedly mounted on one side of the fixed block, and a support block is fixedly mounted on the output end of the first electric telescopic rod. A slot is formed inside the support block, and a connecting block is inserted into the slot. This utility model can fit against and initially clamp the outer surface of the lining butterfly valve. The rubber layer prevents damage to the butterfly valve surface, and the arc-shaped rubber layer can be flexibly fixed or disassembled for easy maintenance and replacement. Furthermore, it improves the flexibility and precision of the lining welding device, effectively improving welding quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lining butterfly valve manufacturing technology, and more specifically, to a lining welding device for manufacturing lining butterfly valves. Background Technology

[0002] Lined butterfly valves, widely used in industrial piping systems, are extensively employed in numerous fields such as chemical, petroleum, food, and pharmaceutical industries due to their excellent corrosion resistance and wear resistance. During the manufacturing process of lined butterfly valves, the welding quality of the lining plays a crucial role in the overall performance and service life of the valve.

[0003] The existing mechanism cannot perform multiple welding operations on the butterfly valve during use, and the device is extremely inconvenient to transport due to its bulkiness.

[0004] A search revealed that Chinese Patent CN214721681U discloses a welding device for butterfly valve production. This structure, through the arrangement of a slider, connecting plate, limiting rod, and push-pull rod, enables multi-dimensional welding of butterfly valves, greatly improving the ease of use and meeting the requirements of different welding angles. Furthermore, the sliding connection between the first sliding rod in the first groove and the connecting plate, and the sliding connection between the second sliding rod in the second groove and the L-shaped connecting rod, effectively reduce jamming during the sliding of the connecting plate and the L-shaped connecting rod. Secondly, the matching of the limiting seat and the limiting rod provides better limiting during device use, ensuring the stability of the welding operation. The support plate provides reliable support for the push-pull rod, ensuring its stability during use, while also facilitating device handling and saving significant manpower. Additionally, the L-shaped connecting rod design makes the device adjustable to adapt to different handling conditions.

[0005] However, in actual use, the device moves the clamping plate by pushing the second handle, which in turn moves the push-pull rod and clamps the butterfly valve between the clamping plate and the connecting plate. Since the clamping plate is only clamped by the push-pull rod, it is difficult to ensure that the force applied by the clamping plate to the butterfly valve is evenly distributed. This may result in the butterfly valve being subjected to excessive or insufficient force in some areas during the welding process, which may affect the welding quality. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a lining welding device for manufacturing lining butterfly valves, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A lining welding device for manufacturing a lining butterfly valve includes a base, a fixing frame and a support frame fixedly mounted on the top of the base, the fixing frame being disposed on one side of the base, two fixing blocks being disposed on one side of the fixing frame, and a clamping arm mechanism being disposed on one side of the fixing blocks.

[0009] The clamping arm mechanism includes a first electric telescopic rod fixedly disposed on one side of the fixed block. A support block is fixedly disposed at the output end of the first electric telescopic rod. A slot is opened inside the support block. A connecting block is inserted into the slot. An arc-shaped rubber layer is fixedly disposed on one side of the connecting block.

[0010] A second electric telescopic rod is fixedly installed on both sides of the support block. A main spring is sleeved on the outside of the second electric telescopic rod, and a trapezoidal block is fixedly installed on one end of the main spring.

[0011] The surface of the trapezoidal block is provided with a fixing groove, a secondary spring is fixedly installed inside the fixing groove, and an auxiliary block is fixedly installed at one end of the secondary spring.

[0012] The output end of the second electric telescopic rod is connected to the surface of the trapezoidal block, and the surface of the support block is provided with multiple connecting grooves, and the trapezoidal block is inserted into the connecting grooves.

[0013] By adopting the above technical solution, the lining butterfly valve can be fitted to the outer surface and initially clamped. The rubber layer can prevent damage to the surface of the butterfly valve. Secondly, the arc-shaped rubber layer can be flexibly fixed or disassembled, which is convenient for maintenance and replacement. Furthermore, the coordinated work of multiple components ensures that the lining butterfly valve is firmly clamped, providing a stable foundation for subsequent welding and ensuring welding quality and efficiency.

[0014] As a further description of the above technical solution: a first motor is fixedly installed on one side of the fixed frame, and a rotating shaft is fixedly provided at the output end of the first motor. One end of the rotating shaft passes through one of the fixed frames and is connected to one of the fixed blocks. An auxiliary rotating rod is rotatably provided between the other fixed frame and the fixed block.

[0015] By adopting the above technical solution: the first motor drives the rotating shaft to rotate, which in turn drives the fixed block to rotate, causing the clamped lining butterfly valve to rotate accordingly. This allows the welding gun head to perform all-round welding on the butterfly valve lining, improving the integrity and uniformity of the welding, ensuring welding quality, further optimizing the welding effect, and improving production efficiency and product quality.

[0016] As a further description of the above technical solution: an adjustment mechanism is provided on one side of the support frame, the adjustment mechanism includes a second motor fixedly installed on one side of the support frame, a threaded rod is fixedly provided at the output end of the second motor, a movable plate is slidably provided inside the support frame, and a threaded groove is opened on the surface of the fixed frame, the movable plate matches the threaded groove;

[0017] The surface of the movable plate is provided with an installation groove, and a third electric telescopic rod is fixedly installed inside the installation groove. A moving block is fixedly installed at the output end of the third electric telescopic rod.

[0018] By adopting the above technical solutions, the flexibility and precision of the lining welding device are significantly improved, allowing the welding torch to be precisely aligned with the part of the lining butterfly valve to be welded, ensuring that the welding operation is completed efficiently and accurately, and effectively improving welding quality and production efficiency.

[0019] As a further description of the above technical solution: a cylinder is fixedly installed at the bottom of the movable block, a welding gun head is fixedly installed at the bottom of the cylinder, a plurality of support legs are fixedly installed at the bottom of the base, and casters are fixedly installed at the bottom of the support legs.

[0020] By adopting the above technical solution, the cylinder can drive the welding gun head to move up and down, which can flexibly adjust the distance between the welding gun head and the lining butterfly valve, so that the welding operation is in the best working state, ensuring the welding quality, and facilitating transfer between different working scenarios. It can also quickly adjust the position of the device and improve work efficiency.

[0021] The technical effects and advantages of this utility model are as follows:

[0022] 1. By setting up a clamping arm mechanism, compared with the existing technology, the first electric telescopic rod drives the support block and the arc-shaped rubber layer to clamp and fix the butterfly valve. This not only achieves effective fixation by the arc-shaped rubber layer adhering to the outer surface of the butterfly valve, but also avoids damage to the surface of the butterfly valve by utilizing the rubber material, ensuring the stability and integrity of the butterfly valve during the welding process. Moreover, by pressing the auxiliary block and retracting the second electric telescopic rod, disassembly can be easily completed under the premise of ensuring safety. This provides great convenience for subsequent maintenance and replacement of the rubber layer, effectively reducing maintenance costs and time, improving the efficiency and flexibility of equipment use, and making the entire lining welding device more practical and economical.

[0023] 2. By setting up an adjustment mechanism, compared with the existing technology, in terms of welding position adjustment, the second motor drives the threaded rod to move the movable plate up and down, and the third electric telescopic rod drives the moving block to move back and forth. This can accurately position the welding gun head to the part to be welded. The cylinder setting can flexibly adjust the distance between the welding gun head and the butterfly valve to ensure that it is at the appropriate welding distance. During the welding process, the butterfly valve rotates continuously under the drive of the first motor. Together with the fixed welding gun head, it realizes all-round welding of the lining, which greatly improves the welding quality and efficiency, greatly simplifies the welding process, improves production efficiency, and provides a strong guarantee for the manufacturing of lining butterfly valves. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the clamping arm mechanism of this utility model.

[0026] Figure 3 This is a schematic diagram of the disassembled structure of the clamping arm mechanism of this utility model.

[0027] Figure 4 This is a cross-sectional structural diagram of the clamping arm mechanism of this utility model.

[0028] Figure 5 This is a schematic diagram of the adjustment mechanism of this utility model.

[0029] The attached diagram is labeled as follows: 1. Base; 2. Fixed frame; 3. Support frame; 4. Fixed block; 5. First electric telescopic rod; 6. Support block; 7. Connecting block; 8. Arc-shaped rubber layer; 9. Second electric telescopic rod; 10. Main spring; 11. Trapezoidal block; 12. Secondary spring; 13. Auxiliary block; 14. Connecting groove; 15. First motor; 16. Rotating shaft; 17. Auxiliary rotating rod; 18. Second motor; 19. Threaded rod; 20. Movable plate; 21. Third electric telescopic rod; 22. Moving block; 23. Cylinder; 24. Welding gun head; 25. Support leg; 26. Caster wheel. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] The embodiments disclosed in this application are as follows: Figure 1-5 The lining welding device for manufacturing a lining butterfly valve shown includes a base 1, a fixing frame 2 and a support frame 3 fixedly installed on the top of the base 1, the fixing frame 2 is installed on one side of the base 1, two fixing blocks 4 are installed on one side of the fixing frame 2, and a clamping arm mechanism is installed on one side of the fixing block 4.

[0032] The clamping arm mechanism includes a first electric telescopic rod 5 fixedly installed on one side of the fixed block 4. A support block 6 is fixedly installed at the output end of the first electric telescopic rod 5. A slot is opened inside the support block 6. A connecting block 7 is inserted into the slot. An arc-shaped rubber layer 8 is fixedly installed on one side of the connecting block 7.

[0033] A second electric telescopic rod 9 is fixedly installed on both sides of the support block 6. A main spring 10 is sleeved on the outside of the second electric telescopic rod 9. A trapezoidal block 11 is fixedly installed on one end of the main spring 10.

[0034] A fixing groove is provided on the surface of the trapezoidal block 11, and a secondary spring 12 is fixedly installed inside the fixing groove. An auxiliary block 13 is fixedly installed at one end of the secondary spring 12.

[0035] The output end of the second electric telescopic rod 9 is connected to the surface of the trapezoidal block 11. The surface of the support block 6 is provided with multiple connecting grooves 14, and the trapezoidal block 11 is inserted into the connecting grooves 14.

[0036] Place the lined butterfly valve to be welded in the area between the two fixed blocks 4, and then start the first electric telescopic rod 5. The output end of the first electric telescopic rod 5 extends, driving the support block 6 to move closer to the lined butterfly valve. Since one side of the support block 6 is connected to the arc-shaped rubber layer 8 through the connecting block 7, the arc-shaped rubber layer 8 can better fit the outer surface of the lined butterfly valve, and perform preliminary clamping and fixing. The rubber layer can also prevent damage to the surface of the butterfly valve.

[0037] When it is necessary to disassemble the arc-shaped rubber layer 8, ensure that the lining welding device is in a safe shutdown state, turn off the relevant power supply and power source to prevent accidents during disassembly. First, press the auxiliary block 13 towards the side close to the trapezoidal block 11. The auxiliary block 13 will then compress the secondary spring 12 to deform until the auxiliary block 13 is completely inserted into the fixed groove.

[0038] Next, the second electric telescopic rod 9 is activated to retract. The second electric telescopic rod 9 drives the trapezoidal block 11 to move, thereby moving the trapezoidal block 11 completely into the connecting groove 14 inside the support block 6 and into the slot. This causes the main spring 10 to deform and then pull the arc-shaped rubber layer 8 outward, thereby causing the connecting block 7 to exit from the slot.

[0039] Reference Figure 2-3 As shown, a first motor 15 is fixedly installed on one side of the fixed frame 2. A rotating shaft 16 is fixedly installed at the output end of the first motor 15. One end of the rotating shaft 16 passes through one of the fixed frames 2 and is connected to one of the fixed blocks 4. An auxiliary rotating rod 17 is rotatably installed between the other fixed frame 2 and the fixed block 4.

[0040] The first motor 15 on one side of the fixed frame 2 starts, and the output end of the first motor 15 drives the rotating shaft 16 to rotate. Since one end of the rotating shaft 16 is connected to one of the fixed blocks 4, it drives the fixed block 4 to rotate, thereby causing the clamped butterfly valve to rotate. The other fixed block 4 is rotatably connected to the fixed frame 2 through the auxiliary rotating rod 17, which plays the role of auxiliary support and rotation, ensuring the smoothness of the butterfly valve rotation.

[0041] Reference Figure 4-5 As shown, an adjustment mechanism is provided on one side of the support frame 3. The adjustment mechanism includes a second motor 18 fixedly installed on one side of the support frame 3. A threaded rod 19 is fixedly provided at the output end of the second motor 18. A movable plate 20 is slidably provided inside the support frame 3. A threaded groove is opened on the surface of the fixed frame 2. The movable plate 20 matches the threaded groove.

[0042] The surface of the movable plate 20 is provided with an installation groove, and a third electric telescopic rod 21 is fixedly installed inside the installation groove. A moving block 22 is fixedly installed at the output end of the third electric telescopic rod 21.

[0043] The second motor 18 on one side of the support frame 3 is started, and the output end of the second motor 18 drives the threaded rod 19 to rotate. Since the movable plate 20 matches the threaded groove on the surface of the fixed frame 2, and the movable plate 20 is slidably set inside the support frame 3, the rotation of the threaded rod 19 will cause the movable plate 20 to move up and down along the support frame 3, thereby adjusting the horizontal position of the welding gun head 24;

[0044] Once the position of the movable plate 20 is adjusted, the third electric telescopic rod 21 installed in the mounting groove on the surface of the movable plate 20 is activated. The output end of the third electric telescopic rod 21 drives the moving block 22 to move in the back-and-forth direction, further adjusting the position of the welding gun head 24 so that it is aligned with the part to be welded.

[0045] Reference Figure 5 As shown, a cylinder 23 is fixedly installed at the bottom of the movable block 22, a welding gun head 24 is fixedly installed at the bottom of the cylinder 23, a plurality of support legs 25 are fixedly installed at the bottom of the base 1, and casters 26 are fixedly installed at the bottom of the support legs 25.

[0046] Since the base 1 has multiple support legs 25 fixedly installed at the bottom, and the support legs 25 have universal wheels 26 fixedly installed at the bottom, the device can be easily pushed to the required position. After the position of the welding gun head 24 is adjusted, the cylinder 23 is started. The piston rod of the cylinder 23 extends, causing the welding gun head 24 to descend to a suitable welding distance. The external welding equipment is turned on, and the welding gun head 24 begins to weld the lining of the butterfly valve. During the welding process, the butterfly valve continues to rotate under the drive of the first motor 15, and the welding gun head 24 performs all-round welding operations on the lining.

[0047] Working principle of this utility model:

[0048] This utility model is a lining welding device for manufacturing lining butterfly valves. When using this device, it is necessary to move the device. Since the bottom of the base 1 is fixedly provided with multiple support legs 25, and the bottom of the support legs 25 is fixedly provided with casters 26, the device can be easily pushed to the required position.

[0049] Then, the lined butterfly valve to be welded is placed in the area between the two fixed blocks 4. Then, the first electric telescopic rod 5 is activated. The output end of the first electric telescopic rod 5 extends, driving the support block 6 to move closer to the lined butterfly valve. Since one side of the support block 6 is connected to the arc-shaped rubber layer 8 through the connecting block 7, the arc-shaped rubber layer 8 can better fit the outer surface of the lined butterfly valve, and perform preliminary clamping and fixing. The rubber layer can also prevent damage to the surface of the butterfly valve.

[0050] Then the first motor 15 on one side of the fixed frame 2 starts. The output end of the first motor 15 drives the rotating shaft 16 to rotate. Since one end of the rotating shaft 16 is connected to one of the fixed blocks 4, it drives the fixed block 4 to rotate, thereby causing the clamped butterfly valve to rotate. The other fixed block 4 is rotatably connected to the fixed frame 2 through the auxiliary rotating rod 17, which plays the role of auxiliary support and rotation, ensuring the smoothness of the butterfly valve rotation.

[0051] Next, the second motor 18 on one side of the support frame 3 starts, and the output end of the second motor 18 drives the threaded rod 19 to rotate. Since the movable plate 20 matches the threaded groove on the surface of the fixed frame 2, and the movable plate 20 is slidably set inside the support frame 3, the rotation of the threaded rod 19 will cause the movable plate 20 to move up and down along the support frame 3, thereby adjusting the horizontal position of the welding gun head 24;

[0052] Once the position of the movable plate 20 is adjusted, the third electric telescopic rod 21 installed in the mounting groove on the surface of the movable plate 20 is activated. The output end of the third electric telescopic rod 21 drives the moving block 22 to move in the front and back direction, further adjusting the position of the welding gun head 24 so that it is aligned with the part to be welded.

[0053] After the welding gun head 24 is positioned, the cylinder 23 is started. The piston rod of the cylinder 23 extends, causing the welding gun head 24 to descend to a suitable welding distance. The external welding equipment is then turned on, and the welding gun head 24 begins to weld the lining of the butterfly valve. During the welding process, the butterfly valve continues to rotate under the drive of the first motor 15, and the welding gun head 24 performs all-round welding operations on the lining.

[0054] After welding is completed, the piston rod of cylinder 23 retracts, lifting the welding gun head 24. Following the reverse order of the above operation, the second motor 18, the third electric telescopic rod 21, and other components are operated in sequence to reset the welding gun head 24 and the movable plate 20. Then, the first electric telescopic rod 5, the second electric telescopic rod 9, and other components are operated in sequence to loosen the clamp on the butterfly valve, remove the welded lining butterfly valve, and complete the entire welding process.

[0055] When it is necessary to disassemble the arc-shaped rubber layer 8, ensure that the lining welding device is in a safe shutdown state, turn off the relevant power supply and power source to prevent accidents during disassembly. First, press the auxiliary block 13 towards the side close to the trapezoidal block 11. The auxiliary block 13 will then compress the secondary spring 12 to deform until the auxiliary block 13 is completely inserted into the fixed groove.

[0056] Next, the second electric telescopic rod 9 is activated to retract. The second electric telescopic rod 9 drives the trapezoidal block 11 to move, thereby moving the trapezoidal block 11 completely into the connecting groove 14 inside the support block 6 and into the slot. This causes the main spring 10 to deform and then pull the arc-shaped rubber layer 8 outward, thereby causing the connecting block 7 to exit from the slot.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lining welding device for manufacturing a lining butterfly valve, comprising a base (1), characterized in that: The top of the base (1) is fixedly provided with a fixed frame (2) and a support frame (3). The fixed frame (2) is located on one side of the base (1). Two fixed blocks (4) are provided on one side of the fixed frame (2). A clamping arm mechanism is provided on one side of the fixed block (4). The clamping arm mechanism includes a first electric telescopic rod (5) fixedly disposed on one side of the fixed block (4). A support block (6) is fixedly disposed at the output end of the first electric telescopic rod (5). A slot is opened inside the support block (6). A connecting block (7) is inserted into the slot. An arc-shaped rubber layer (8) is fixedly disposed on one side of the connecting block (7). The support block (6) is fixedly provided with a second electric telescopic rod (9) on both sides. The second electric telescopic rod (9) is sleeved with a main spring (10). A trapezoidal block (11) is fixedly provided at one end of the main spring (10).

2. The lining welding apparatus for manufacturing a lining butterfly valve according to claim 1, characterized in that: The surface of the trapezoidal block (11) is provided with a fixing groove, and a secondary spring (12) is fixedly installed inside the fixing groove. An auxiliary block (13) is fixedly installed at one end of the secondary spring (12). The output end of the second electric telescopic rod (9) is connected to the surface of the trapezoidal block (11). The surface of the support block (6) is provided with multiple connecting grooves (14), and the trapezoidal block (11) is inserted into the connecting grooves (14).

3. The lining welding apparatus for manufacturing a lining butterfly valve according to claim 1, characterized in that: A first motor (15) is fixedly installed on one side of the fixed frame (2). A rotating shaft (16) is fixedly installed at the output end of the first motor (15). One end of the rotating shaft (16) passes through one of the fixed frames (2) and is connected to one of the fixed blocks (4). An auxiliary rotating rod (17) is rotatably installed between the other fixed frame (2) and the fixed block (4).

4. The lining welding apparatus for manufacturing a lining butterfly valve according to claim 1, characterized in that: An adjustment mechanism is provided on one side of the support frame (3). The adjustment mechanism includes a second motor (18) fixedly installed on one side of the support frame (3). A threaded rod (19) is fixedly provided at the output end of the second motor (18). A movable plate (20) is slidably provided inside the support frame (3). A threaded groove is provided on the surface of the fixed frame (2). The movable plate (20) matches the threaded groove.

5. The lining welding apparatus for manufacturing a lining butterfly valve according to claim 1, characterized in that: The surface of the movable plate (20) is provided with an installation groove, and a third electric telescopic rod (21) is fixedly installed inside the installation groove. A moving block (22) is fixedly installed at the output end of the third electric telescopic rod (21).

6. The lining welding apparatus for manufacturing a lining butterfly valve according to claim 1, characterized in that: A cylinder (23) is fixedly installed at the bottom of the movable block (22), and a welding gun head (24) is fixedly installed at the bottom of the cylinder (23).

7. The lining welding apparatus for manufacturing a lining butterfly valve according to claim 1, characterized in that: The base (1) has multiple support legs (25) fixedly installed at its bottom, and the support legs (25) have casters (26) fixedly installed at their bottoms.

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