A self-anchored pipe socket welding ring welding device based on construction site construction and an operating method thereof

Abstract

The application relates to the technical field of nodular column iron pipe processing, and discloses a self-anchored pipe socket welding ring welding device based on construction and an operation method thereof, which comprises a push plate, a self-anchored nodular cast iron pipe and a copper hoop, one end of the top of the push plate is fixedly connected with an electric telescopic table, the output end of the electric telescopic table is fixedly connected with a mounting frame, and the inner wall of the mounting frame is fixedly connected with a first motor. The welding gun arranged at the top of the assembling block reciprocatingly performs slow overlay welding between the two copper hoops under the slow rotation of the first motor, and the application further solves the problem that, in the use process of the traditional self-anchored pipe socket welding ring welding device, when special-sized pipelines are needed, the self-anchored nodular cast iron pipe often needs to be taken to a designated processing factory for processing, which is not only troublesome for the back-and-forth transportation, but also difficult to timely perform secondary processing on the pipe according to the construction demand, so that the pipeline throughness cannot be guaranteed.

Description

Technical Field

[0001] This invention relates to the field of ductile iron pipe processing technology, specifically to a welding device for self-anchoring pipe spigot welding rings used in construction sites and its operation method. Background Technology

[0002] Self-anchoring ductile iron pipes, with their excellent castability, corrosion resistance, and fatigue resistance, have become the main pipelines in water conservancy projects. Due to the long pipeline length in these projects, segmented water pressure tests must be conducted during the installation of self-anchoring ductile iron pipes (the test section length is generally no more than 1.5km). The reserved length between the two test sections makes it difficult to accurately control the installation dimensions when the two sections are finally closed. Existing self-anchoring ductile iron pipes often have fixed specifications. When special-sized pipelines are required, it is often necessary to go to a designated processing plant for processing. This is not only time-consuming and labor-intensive, but also makes it difficult to guarantee the continuity of the welded pipeline. Therefore, a welding device is needed to facilitate on-site welding of self-anchoring ductile iron pipes to restore their self-anchoring function.

[0003] The existing technology has the following problems:

[0004] 1. In the use of existing self-anchoring pipe spigot welding ring welding devices, since self-anchoring ductile iron pipes are often of fixed specifications, when special-sized pipelines are required, it is often necessary to go to a designated processing plant for processing. This not only makes round-trip transportation more troublesome, but also makes it difficult to process the pipes in a timely manner according to construction needs, thus causing problems with the pipeline continuity.

[0005] 2. During the use of existing self-anchoring pipe spigot welding rings, due to the high carbon content in the self-anchoring ductile iron pipe, hard and brittle cementite is easily formed in the heated area after welding, which causes cracking in the welded area of ​​the self-anchoring ductile iron pipe. Summary of the Invention

[0006] This invention provides a welding device and its operation method for a self-anchoring pipe spigot welding ring used in construction sites, in order to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] A welding device for self-anchoring pipe spigot welding rings used in construction sites includes a push plate, a self-anchoring ductile iron pipe, and a copper hoop. An electric telescopic platform is fixedly connected to one end of the top of the push plate. An installation frame is fixedly connected to the output end of the electric telescopic platform. A first motor is fixedly connected to the inner wall of the installation frame. A transmission rod is fixedly connected to the output end of the first motor. An electrically controlled telescopic platform is fixedly connected to the outer wall of the transmission rod away from the first motor. A support rod is fixedly connected to one side of the outer wall of the electrically controlled telescopic platform. One end of the support rod is fixedly connected to one side of the outer wall of the transmission rod. A welding assembly is provided at the output end of the electrically controlled telescopic platform.

[0009] A further improvement to the technical solution of this invention lies in that the welding assembly includes a fixed frame fixedly connected to the output end of the electrically controlled telescopic table. A plurality of first rollers are rotatably connected to one end of the top of the fixed frame. The surfaces of the first rollers are slidably connected to the outer wall of the self-anchoring ductile iron pipe. An extension fixing pipe is fixedly connected to one end of the outer wall of the fixed frame. A telescopic rod is slidably connected to the inner wall of the extension fixing pipe. A stabilizing box is fixedly connected to the end of the outer wall of the telescopic rod away from the extension fixing pipe. An electric lead screw is rotatably connected to the inner wall of the stabilizing box. A fixing block is threadedly connected to the outer wall of the electric lead screw. The outer wall of the block is slidably connected to the inner wall of the stabilizing box. A limit box is fixedly connected to the end of the outer wall of the fixed block away from the electric lead screw. A limit rod is installed on one end of the inner wall of the limit box. An assembly block is slidably connected to the outer wall of the limit rod. A second motor is fixedly connected to one end of the outer wall of the limit box. A lead screw is fixedly connected to the output end of the second motor. The end of the lead screw close to the second motor passes through the outer wall of the limit box and is rotatably connected. The end of the lead screw away from the second motor is rotatably connected to one side of the inner wall of the limit box. The outer wall of the lead screw is threadedly connected to the end of the inner cavity of the assembly block away from the limit rod.

[0010] A further improvement of the technical solution of the present invention is that a first winch is rotatably connected to one end of the top of the assembly block, welding wire is wound on the surface of the first winch, the center of the inner wall of the first winch is slidably connected to the outer wall of the limiting rod, a welding gun is fixedly connected to the top of the assembly block away from the first winch, a guide frame is fixedly connected to the top of the assembly block between the first winch and the welding gun, the inner wall of the guide frame is slidably connected to one end of the welding wire, a micro motor is fixedly connected to one side of the outer wall of the guide frame, a conveying roller is fixedly connected to the output end of the micro motor, the outer wall of the conveying roller away from the micro motor is rotatably connected to the inner wall of the guide frame, a linkage gear is meshed on the outer wall of the conveying roller close to the inner wall of the guide frame, one side of the outer wall of the linkage gear is rotatably connected to the center of the inner wall of the guide frame, an auxiliary roller is meshed on one end of the linkage gear, both sides of the outer wall of the auxiliary roller are rotatably connected to the inner wall of the guide frame away from the conveying roller, and the conveying roller and the auxiliary roller are in contact with one end of the outer wall of the welding wire.

[0011] A further improvement of the technical solution of the present invention is that a telescopic support rod is fixedly connected to the end of the outer wall of the fixed frame away from the extension fixed tube, a reset plate is fixedly connected to the output end of the telescopic support rod, a reset tube is rotatably connected to the outer wall of the reset plate, a ring spring is fixedly connected to the inner wall of the reset tube, one end of the ring spring contacts the outer wall of the reset plate, a bonding block is fixedly connected to the outer wall of the reset tube, a second winch is rotatably connected to one end of the inner wall of the bonding block, asbestos cloth is wound around the outer wall of the second winch, and a roller is rotatably connected to the end of the inner wall of the bonding block away from the second winch, and the outer wall of the roller is slidably connected to the outer wall of the copper hoop.

[0012] A further improvement of the technical solution of the present invention is that a limiting plate is fixedly connected at the center of the top of the push plate, a limiting groove is formed on the outer wall of the limiting plate, a first sliding rod is slidably connected to the inner wall of the limiting groove, the end of the first sliding rod away from the limiting groove is slidably connected to the inner cavity of the top of the push plate away from the electric telescopic platform, a partition is fixedly connected at the center of the outer wall of the first sliding rod, a second sliding rod is fixedly connected to the inner cavity of the partition away from the first sliding rod, and both ends of the outer wall of the second sliding rod are slidably connected to the inner wall of the limiting groove.

[0013] A further improvement of the technical solution of the present invention is that two storage slots are provided at the top of the push plate away from the electric telescopic platform, and an extension plate is rotatably connected to the inner wall of the storage slot, and a locking block is fixedly connected to one end of the extension plate.

[0014] A further improvement of the technical solution of the present invention is that one side of the outer wall of the partition contacts the side of the outer wall of the fixing frame that is close to the extension fixing tube, and both ends of the outer wall of the partition away from the fixing frame are fixedly connected with card boxes, and the inner wall of the card box is engaged with the outer wall of the card block.

[0015] A further improvement of the technical solution of the present invention is that a slider is slidably connected to the outer wall of the extension fixing tube, one end of the inner cavity of the slider is slidably connected to the outer wall of the telescopic support rod, and inserts are slidably connected to both ends of the inner cavity of the slider near the extension fixing tube. A second roller is rotatably connected to the top of the slider, and the surface of the second roller is slidably connected to the outer wall of the self-anchoring ductile iron pipe.

[0016] A further improvement of the technical solution of the present invention is that several slots are provided on both sides of the outer wall of the extension fixing tube, and the inner wall of the slot is inserted into one end of the outer wall of the insert block.

[0017] An operating method for a welding device for self-anchoring pipe spigot weld rings used in construction sites, the method employing the aforementioned welding device for self-anchoring pipe spigot weld rings used in construction sites, as follows:

[0018] S1: By activating the electric telescopic platform set at one end of the push plate, the electric telescopic platform drives the mounting frame and the first motor set on its inner wall, and aligns the transmission rod set at the output end of the first motor with the inner center of the self-anchoring ductile iron pipe. Then, the self-anchoring ductile iron pipe is welded using the welding assembly.

[0019] S2: The welding assembly is assembled by setting a welding torch at one end of the top of the assembly block and setting a first winch at the end of the top of the assembly block away from the welding torch. The welding wire is then wound around the surface of the first winch, so that one end of the welding wire passes through the guide frame set at the top of the assembly block between the first winch and the welding torch. At this time, the first motor is started, and the transmission rod drives the electrically controlled telescopic table and the fixed frame to slowly rotate around the self-anchored ductile iron pipe as the center, so that the welding torch can weld around the gap between the two copper hoops.

[0020] S3: By setting a ring spring inside the reset tube, the ring spring continuously pushes the roller at one end of the bonding block to bond with the two copper hoops. Since the solder between the copper hoops still has residual heat, the residual heat generated by the solder heats the copper hoops on both sides, so that the asbestos cloth is tightly bonded to the surface of the copper hoop under the melting of the hot melt adhesive at both ends, and the solder is wrapped in the asbestos cloth.

[0021] S4: By pushing the partition placed on the surface of the push plate, the partition moves to the end of the limiting groove and flips, so that the angle between the partition and the push plate is 90 degrees. At this time, two storage slots are set at the top of the push plate away from the electric telescopic table, and the extension plate set on the inner wall of the storage slot is pulled up. The locking block set at one end of the extension plate is pulled, so that the outer wall of the locking block is embedded in the card box set at both ends of the outer wall of the partition, thereby fixing the partition and using the partition to support the fixed frame.

[0022] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0023] 1. The present invention provides a second motor at one end of the outer wall of the limiting box and a lead screw at the output end of the second motor. The end of the lead screw close to the second motor passes through the outer wall of the limiting box and is rotatably connected. When the second motor is started, it drives the lead screw to rotate and uses the lead screw to move the assembly block set on its outer wall inside the limiting box. The welding gun set at the top end of the assembly block slowly reciprocates between the two copper hoops under the slow rotation of the first motor.

[0024] 2. This invention uses a ring spring to continuously push a roller at one end of the bonding block to bond with two copper hoops. The residual heat generated by the solder heats the copper hoops on both sides, causing the asbestos cloth to adhere tightly to the surface of the copper hoops under the melting of the hot melt adhesive at both ends. The solder is wrapped inside the asbestos cloth, which continuously keeps the solder warm. After the solder cools down slowly, the operator can tear off the asbestos cloth by hand. This further solves the problem of cracking in the welding area of ​​self-anchoring ductile iron pipes caused by the high carbon content in the self-anchoring ductile iron pipe during use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a side view of the present invention;

[0027] Figure 3 This is a front view of the present invention.

[0028] Figure 4 This is a schematic diagram of the partition structure in this invention;

[0029] Figure 5 This is a schematic diagram of the bonding block in this invention;

[0030] Figure 6 This is a schematic cross-sectional view of the reset tube in this invention;

[0031] Figure 7 This is a schematic diagram of the limiting box in this invention;

[0032] Figure 8 This is a schematic diagram of the assembly block in this invention;

[0033] Figure 9 This is a cross-sectional schematic diagram of the guide frame in this invention;

[0034] Figure 10 This is a cross-sectional schematic diagram of the slider in this invention.

[0035] In the diagram: 1. Push plate; 2. Self-anchoring ductile iron pipe; 3. Copper hoop; 4. Electric telescopic platform; 5. Mounting frame; 6. First motor; 7. Transmission rod; 8. Electric telescopic platform; 9. Support rod; 10. Fixing frame; 11. First roller; 12. Extension fixing pipe; 13. Telescopic rod; 14. Stabilizing box; 15. Electric lead screw; 16. Fixing block; 17. Limiting box; 18. Limiting rod; 19. Assembly block; 20. Second motor; 21. Lead screw; 22. First winch; 23. Welding wire; 24. Welding torch; 25. Guide frame 26. Micro motor; 27. Conveyor roller shaft; 28. Linkage gear; 29. ​​Auxiliary roller shaft; 30. Telescopic support rod; 31. Reset plate; 32. Reset tube; 33. Ring spring; 34. Adhesive block; 35. Second winch; 36. Asbestos cloth; 37. Roller; 38. Limiting plate; 39. Limiting groove; 40. First slide rod; 41. Partition plate; 42. Second slide rod; 43. Storage groove; 44. Extension plate; 45. Card block; 46. Card box; 47. Slider; 48. Insert block; 49. Second roller; 50. Slot. Detailed Implementation

[0036] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0037] like Figures 1 to 10As shown in the embodiment of the present invention, a welding device for self-anchoring pipe spigot welding rings for construction sites includes a push plate 1, a self-anchoring ductile iron pipe 2, and a copper hoop 3. An electric telescopic platform 4 is fixedly connected to one end of the top of the push plate 1. A mounting frame 5 is fixedly connected to the output end of the electric telescopic platform 4. A first motor 6 is fixedly connected to the inner wall of the mounting frame 5. A transmission rod 7 is fixedly connected to the output end of the first motor 6. An electrically controlled telescopic platform 8 is fixedly connected to the outer wall of the transmission rod 7 away from the first motor 6. A support rod 9 is fixedly connected to one side of the outer wall of the electrically controlled telescopic platform 8. One end of the support rod 9 is fixedly connected to one side of the outer wall of the transmission rod 7. A welding assembly is provided at the output end of the electrically controlled telescopic platform 8. The welding assembly includes a fixing frame 10 fixedly connected to the output end of the electrically controlled telescopic platform 8. A plurality of first rollers 11 are rotatably connected to one end of the top of the bracket 10. The surface of the first rollers 11 is slidably connected to the outer wall of the self-anchoring ductile iron pipe 2. An extension fixing pipe 12 is fixedly connected to one end of the outer wall of the fixing bracket 10. A telescopic rod 13 is slidably connected to the inner wall of the extension fixing pipe 12. A stabilizing box 14 is fixedly connected to the outer end of the telescopic rod 13 away from the extension fixing pipe 12. An electric lead screw 15 is rotatably connected to the inner wall of the electric lead screw 15. A fixing block 16 is threadedly connected to the outer wall of the electric lead screw 15. The outer wall of the fixing block 16 is slidably connected to the inner wall of the stabilizing box 14. A limit box 17 is fixedly connected to the outer end of the fixing block 16 away from the electric lead screw 15. A limit rod 18 is installed on one end of the inner wall of the limit box 17. An assembly block 19 is slidably connected to the outer wall of the limit rod 18. A second motor 20 is fixedly connected to one end of the outer wall of the limiting box 17. A lead screw 21 is fixedly connected to the output end of the second motor 20. The end of the lead screw 21 near the second motor 20 passes through the outer wall of the limiting box 17 and is rotatably connected. The end of the lead screw 21 away from the second motor 20 is rotatably connected to one side of the inner wall of the limiting box 17. The outer wall of the lead screw 21 is threadedly connected to the end of the inner cavity of the assembly block 19 away from the limiting rod 18. A first winch 22 is rotatably connected to one end of the top of the assembly block 19. Welding wire 23 is wound on the surface of the first winch 22. The center of the inner wall of the first winch 22 is slidably connected to the outer wall of the limiting rod 18. A welding gun 24 is fixedly connected to the top of the assembly block 19 away from the first winch 22. The top of the assembly block 19 is located between the first winch 22 and the welding gun 24. A guide frame 25 is fixedly connected between the four components. The inner wall of the guide frame 25 is slidably connected to one end of the welding wire 23. A micro motor 26 is fixedly connected to one side of the outer wall of the guide frame 25. A conveying roller shaft 27 is fixedly connected to the output end of the micro motor 26. The end of the outer wall of the conveying roller shaft 27 away from the micro motor 26 is rotatably connected to the inner wall of the guide frame 25. A linkage gear 28 is meshed on the side of the outer wall of the conveying roller shaft 27 near the inner wall of the guide frame 25. One side of the outer wall of the linkage gear 28 is rotatably connected to the center of the inner wall of the guide frame 25. An auxiliary roller shaft 29 is meshed on one end of the linkage gear 28. Both sides of the outer wall of the auxiliary roller shaft 29 are rotatably connected to the end of the inner wall of the guide frame 25 away from the conveying roller shaft 27. The conveying roller shaft 27 and the auxiliary roller shaft 29 are in contact with one end of the outer wall of the welding wire 23.A slider 47 is slidably connected to the outer wall of the extension fixing tube 12. One end of the inner cavity of the slider 47 is slidably connected to the outer wall of the telescopic support rod 30. Insert blocks 48 are slidably connected to both ends of the inner cavity of the slider 47 near the extension fixing tube 12. A second roller 49 is rotatably connected to the top of the slider 47. The outer surface of the second roller 49 is slidably connected to the outer wall of the self-anchoring ductile iron pipe 2. Several slots 50 are provided on both sides of the outer wall of the extension fixing tube 12. The inner wall of the slot 50 is inserted into one end of the outer wall of the insert block 48.

[0038] During operation, the self-anchoring ductile iron pipe 2 is lifted by a crane and placed on a temporary platform, with the end of the pipe 2 furthest from the self-anchoring spigot extending beyond the platform. Then, two copper hoops 3 (composed of two semi-circular copper metal hoops of corresponding pipe dimensions, fixed together by bolts on one side, a technique already in use) are installed on the surface of the self-anchoring ductile iron pipe 2 (the distance between the two hoops 3 is approximately 1-2 cm), ensuring a tight fit between the inner wall of the hoops 3 and the outer wall of the pipe 2. To achieve the desired fit, push the push plate 1 to move it to the end of the self-anchoring ductile iron pipe 2 where the copper hoop 3 is installed. Then, activate the electric telescopic platform 4 located at the top of the push plate 1. This causes the electric telescopic platform 4 to drive the mounting frame 5 and the first motor 6 located on its inner wall. Align the transmission rod 7 located at the output end of the first motor 6 with the inner center of the self-anchoring ductile iron pipe 2. Activate the electrically controlled telescopic platform 8 located at the end of the outer wall of the transmission rod 7 away from the first motor 6. This will cause the fixed frame 10 located at its output end to approach the outer wall of the self-anchoring ductile iron pipe 2. Since several first rollers 11 are provided at one end of the top of the fixed frame 10, the electrically controlled telescopic table 8 stops moving when the first rollers 11 contact the outer wall of the self-anchoring ductile iron pipe 2. By providing extension fixed pipes 12 and telescopic support rods 30 at both ends of the outer wall of the fixed frame 10, and by providing sliders 47 on the outer walls of the extension fixed pipes 12 and telescopic support rods 30, and by providing several second rollers 49 on the top of the sliders 47, the second rollers 49 also contact the surface of the self-anchoring ductile iron pipe 2 during the movement of the fixed frame 10 driven by the electrically controlled telescopic table 8. At this time, by pulling the inner cavity of the slider 47 close to the inserts 48 set at both ends of the extension fixing tube 12, the inserts 48 are disengaged from the slots 50 set on both sides of the outer wall of the extension fixing tube 12. Then, the slider 47, which is no longer restricted by the inserts 48, is pushed to move on the surface of the extension fixing tube 12 and the telescopic support rod 30. After moving to the appropriate position, the inserts 48 at both ends are reinserted into the slots 50 to fix the slider 47. This makes the first motor 6 more stable when driving the electrically controlled telescopic platform 8 and the fixing frame 10 to rotate around the self-anchored ductile iron pipe 2 through the transmission rod 7.

[0039] It should be further explained that by pulling the telescopic rod 13 and telescopic support rod 30 installed on the inner wall of the extension fixing tube 12, the stabilizing box 14 and the fitting block 34 installed at one end of the telescopic rod 13 and the telescopic support rod 30 respectively are moved to the appropriate position. At this time, the electric screw 15 installed on the inner wall of the stabilizing box 14 (here the electric screw 15 is composed of a motor and a screw 21, which is the prior art) is activated, so that the electric screw 15 drives the fixing block 16 installed on the outer wall to move upward, so that the fixing block 16 moves upward in the stabilizing box 14, and lifts the copper hoop 3 installed on the outer wall of the fixing block 16 near the end of the limiting box 17 installed away from the electric screw 15 and closes it to the outer wall of the self-anchoring ductile iron pipe 2. A limiting rod 18 is provided at one end of the inner wall of the assembly block 19, and an assembly block 19 is provided on the outer wall of the limiting rod 18. A welding torch 24 is provided at one end of the top of the assembly block 19, and a first winch 22 is provided at the end of the top of the assembly block 19 away from the welding torch 24. Then, welding wire 23 (here, welding wire 23 is nickel-based welding wire) is wound around the first winch 22, so that one end of the welding wire 23 passes through the guide frame 25 provided at the top of the assembly block 19 between the first winch 22 and the welding torch 24. At this time, the first motor 6 is started, and the electric control telescopic table 8, the fixed frame 10 and other structures are driven by the transmission rod 7 to slowly rotate around the self-anchored ductile iron pipe 2, so that the welding torch 24 welds around the gap between the two copper hoops 3.

[0040] It should be reiterated that a second motor 20 is installed at one end of the outer wall of the limiting box 17, and a lead screw 21 is set at the output end of the second motor 20. The end of the lead screw 21 close to the second motor 20 passes through the outer wall of the limiting box 17 and is rotatably connected. At this time, the second motor 20 is started, driving the lead screw 21 to rotate. The lead screw 21 drives the assembly block 19 set on its outer wall to move inside the limiting box 17. This allows the welding gun 24 set at one end of the top of the assembly block 19 to slowly reciprocate between the two copper hoops 3 under the slow rotation of the first motor 6. A support rod 9 is set on one side of the outer wall of the electric telescopic table 8, and one end of the support rod 9 is connected to the outer wall of the transmission rod 7. The support rod 9 is used to reinforce the rotating transmission rod 7 and the electric telescopic table 8. During this period, a micro motor 26 is set on one side of the outer wall of the guide frame 25. The micro motor 26 is started to drive the assembly block 19 set on one end of the inner wall of the guide frame 25. The conveying roller shaft 27 rotates. Since the outer wall of the conveying roller shaft 27, close to the inner wall of the guide frame 25, meshes with the linkage gear 28 set at the center of the inner wall of the guide frame 25, the linkage gear 28 drives the auxiliary roller shaft 29 set at the end of the inner wall of the guide frame 25 away from the conveying roller shaft 27 to rotate. Thus, the auxiliary roller shaft 29 and the conveying roller shaft 27 rotate simultaneously. The friction force pushes the welding wire 23 out of the guide frame 25 and closes it to the welding gun 24, so that the welding wire 23 melts and adheres to the surface of the self-anchoring ductile iron pipe 2 and between the two copper hoops 3. This further solves the problem that in the traditional self-anchoring pipe spigot welding device, since the specifications of the self-anchoring ductile iron pipe 2 are fixed, when special-sized pipelines are required, they need to be processed in a designated processing plant. This not only makes the round-trip transportation more troublesome, but also makes it difficult to process the pipes in time according to the construction requirements, resulting in the difficulty in ensuring the continuity of the pipeline.

[0041] A telescopic support rod 30 is fixedly connected to the end of the outer wall of the fixed frame 10 away from the extension fixed tube 12. A reset plate 31 is fixedly connected to the output end of the telescopic support rod 30. A reset tube 32 is rotatably connected to the outer wall of the reset plate 31. A ring spring 33 is fixedly connected to the inner wall of the reset tube 32. One end of the ring spring 33 contacts the outer wall of the reset plate 31. A bonding block 34 is fixedly connected to the outer wall of the reset tube 32. A second winch 35 is rotatably connected to one end of the inner wall of the bonding block 34. Asbestos cloth 36 is wrapped around the outer wall of the second winch 35. A roller 37 is rotatably connected to the end of the inner wall of the bonding block 34 away from the second winch 35. The outer wall of the roller 37 is slidably connected to the outer wall of the copper hoop 3.

[0042] During operation, a telescopic support rod 30 is installed on the outer wall of the fixed frame 10 at the end away from the extension fixed tube 12, and a reset plate 31 is installed at the output end of the telescopic support rod 30. A reset tube 32 is installed on the outer wall of the reset plate 31, and an adhesive block 34 is installed on the outer wall of the reset tube 32. Asbestos cloth 36 (here, the asbestos cloth 36 is specially processed, and both ends of the asbestos cloth 36 are coated with hot melt adhesive) is wrapped around the surface of the second winch 35 at one end of the inner wall of the adhesive block 34, and the other end of the asbestos cloth 36 is fixed to the surface of the roller 37 at the end of the inner wall of the adhesive block 34 away from the second winch 35. After the self-anchoring ductile iron pipe 2 between the copper hoops 3 is welded, while the welding torch 24 is closed, the first motor 6 drives the fixed frame 10 to rotate again through the electrically controlled telescopic table 8. By installing a ring spring 33 in the reset tube 32, the ring spring 33 continuously pushes the adhesive block. The roller 37 at one end of block 34 is attached to the two copper hoops 3. Since the solder between the copper hoops 3 still has residual heat, the residual heat generated by the solder heats the copper hoops 3 on both sides. Asbestos cloth 36 in contact with the surface of the copper hoops 3 is tightly attached to the surface of the copper hoops 3 by melting the hot melt adhesive at both ends, and the solder is wrapped in the asbestos cloth 36 to keep the solder continuously warm. After the solder cools down slowly, the operator can tear off the asbestos cloth 36 attached to the surface of the copper hoops 3 by hand. Finally, the operator unscrews the bolts fixed to the surface of the copper hoops 3 and removes the copper hoops 3 from the surface of the self-anchoring ductile iron pipe 2. This further solves the problem that in the process of using traditional self-anchoring pipe spigot welding ring welding devices, due to the high carbon content in the self-anchoring ductile iron pipe 2, hard and brittle cementite (commonly known as white iron structure) is easily formed in the heated area after welding, which causes cracking in the welding area of ​​the self-anchoring ductile iron pipe 2.

[0043] A limiting plate 38 is fixedly connected to the center of the top of the push plate 1. A limiting groove 39 is formed on the outer wall of the limiting plate 38. A first sliding rod 40 is slidably connected to the inner wall of the limiting groove 39. The end of the first sliding rod 40 away from the limiting groove 39 is slidably connected to the inner cavity of the top of the push plate 1 away from the electric telescopic platform 4. A partition plate 41 is fixedly connected to the center of the outer wall of the first sliding rod 40. A second sliding rod 42 is fixedly connected to the inner cavity of the partition plate 41 away from the first sliding rod 40. Both ends of the outer wall of the second sliding rod 42 are... The push plate 1 is slidably connected to the inner wall of the limiting groove 39. Two storage slots 43 are opened at the top of the push plate 1 away from the electric telescopic platform 4. An extension plate 44 is rotatably connected to the inner wall of the storage slot 43. A locking block 45 is fixedly connected to one end of the extension plate 44. One side of the outer wall of the partition plate 41 contacts the side of the outer wall of the fixing frame 10 near the extension fixing tube 12. Card boxes 46 are fixedly connected to both ends of the outer wall of the partition plate 41 away from the fixing frame 10. The inner wall of the card box 46 is engaged with the outer wall of the locking block 45.

[0044] During operation, a limiting plate 38 is set at the center of the top of the push plate 1, and a limiting groove 39 is set on the outer wall of the limiting plate 38. The limiting groove 39 is used to limit the first sliding rod 40 and the second sliding rod 42 set at both ends of the inner cavity of the partition 41. After the self-anchored ductile iron pipe 2 is welded, the partition 41 placed on the surface of the push plate 1 is pushed, and the partition 41 is moved to the end of the limiting groove 39 and flipped so that the angle between the partition 41 and the push plate 1 is ninety degrees. At this time, two storage slots 43 are set at the top of the push plate 1 away from the electric telescopic table 4. The extension plate 44 set on the inner wall of the storage slot 43 is pulled up, and the locking block 45 set at one end of the extension plate 44 is pulled, so that the outer wall of the locking block 45 is embedded in the partition 4. 1. Card boxes 46 are installed at both ends of one side of the outer wall to support the partition 41. At this time, the pusher rod 13 and the telescopic support rod 30 are reset, and the slider 47 is pushed to fit against the fixed frame 10. Finally, the electric telescopic table 8 is activated to move the fixed frame 10 down and gradually approach the push plate 1. At this time, the push plate 1 is pulled away from the self-anchored ductile iron pipe 2, so that the fixed frame 10 loses its support for the outer wall of the self-anchored ductile iron pipe 2. At the same time, one side of the outer wall of the fixed frame 10 fits against the side of the partition 41 away from the card box 46. Thus, the cooperation between the partition 41 and the extension plate 44 is used to support the fixed frame 10 and other parts, so as to prevent the welding device from vibrating during the movement, which would cause the center of gravity of the welding device to become unstable and cause the welding device to tilt and overturn.

[0045] An operating method for a welding device for self-anchoring pipe spigot weld rings used in construction sites, the method employing the aforementioned welding device for self-anchoring pipe spigot weld rings used in construction sites, as follows:

[0046] S1: By activating the electric telescopic platform 4 set at one end of the top of the push plate 1, the electric telescopic platform 4 drives the mounting frame 5 and the first motor 6 set on its inner wall, and aligns the transmission rod 7 set at the output end of the first motor 6 with the inner center of the self-anchored ductile iron pipe 2. Then, the self-anchored ductile iron pipe 2 is welded using the welding assembly.

[0047] S2: The welding assembly is assembled by setting a welding torch 24 at one end of the top of the assembly block 19 and setting a first winch 22 at the end of the top of the assembly block 19 away from the welding torch 24. Then, the welding wire 23 is wound around the surface of the first winch 22, so that one end of the welding wire 23 passes through the guide frame 25 set at the top of the assembly block 19 between the first winch 22 and the welding torch 24. At this time, the first motor 6 is started, and the transmission rod 7 drives the electrically controlled telescopic table 8 and the fixed frame 10 to slowly rotate around the self-anchored ductile iron pipe 2 as the center, so that the welding torch 24 welds around the gap between the two copper hoops 3.

[0048] S3: By setting an annular spring 33 inside the reset tube 32, the annular spring 33 continuously pushes the roller 37 set at one end of the bonding block 34 to bond with the two copper hoops 3. Since the solder between the copper hoops 3 still has residual heat, the residual heat generated by the solder heats the copper hoops 3 on both sides, so that the asbestos cloth 36 is tightly bonded to the surface of the copper hoop 3 under the melting of the hot melt adhesive at both ends, and the solder is wrapped inside the asbestos cloth 36.

[0049] S4: By pushing the partition 41 placed on the surface of the push plate 1, the partition 41 moves to the end of the limiting groove 39 and flips, so that the angle between the partition 41 and the push plate 1 is ninety degrees. At this time, two storage slots 43 are set at the top of the push plate 1 away from the electric telescopic table 4, and the extension plate 44 set on the inner wall of the storage slot 43 is pulled up. The locking block 45 set at one end of the extension plate 44 is pulled, so that the outer wall of the locking block 45 is embedded in the card box 46 set at both ends on one side of the outer wall of the partition 41, and the partition 41 is fixed, thereby using the partition 41 to support the fixing frame 10.

[0050] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A welding device for a self-anchoring pipe spigot welding ring for construction site use, comprising a push plate (1), a self-anchoring ductile iron pipe (2), and a copper hoop (3), characterized in that: An electric telescopic platform (4) is fixedly connected to one end of the top of the push plate (1). An installation frame (5) is fixedly connected to the output end of the electric telescopic platform (4). A first motor (6) is fixedly connected to the inner wall of the installation frame (5). A transmission rod (7) is fixedly connected to the output end of the first motor (6). An electric telescopic platform (8) is fixedly connected to the outer wall of the transmission rod (7) away from the first motor (6). A support rod (9) is fixedly connected to one side of the outer wall of the electric telescopic platform (8). One end of the support rod (9) is fixedly connected to one side of the outer wall of the transmission rod (7). A welding assembly is provided at the output end of the electric telescopic platform (8). The welding assembly includes a fixed frame (10) fixedly connected to the output end of the electric telescopic table (8). A number of first rollers (11) are rotatably connected to one end of the top of the fixed frame (10). The surface of the first rollers (11) is slidably connected to the outer wall of the self-anchoring ductile iron pipe (2). An extension fixed pipe (12) is fixedly connected to one end of the outer wall of the fixed frame (10). A telescopic rod (13) is slidably connected to the inner wall of the extension fixed pipe (12). A stabilizing box (14) is fixedly connected to the end of the outer wall of the telescopic rod (13) away from the extension fixed pipe (12). An electric lead screw (15) is rotatably connected to the inner wall of the stabilizing box (14). A fixing block (16) is threadedly connected to the outer wall of the electric lead screw (15). The outer wall of the fixing block (16) is connected to the inner wall of the stabilizing box (14). The sliding connection is as follows: the end of the outer wall of the fixed block (16) away from the electric lead screw (15) is fixedly connected to the limit box (17), the inner wall of the limit box (17) is installed with the limit rod (18), the outer wall of the limit rod (18) is slidably connected to the assembly block (19), the outer wall of the limit box (17) is fixedly connected to the second motor (20), the output end of the second motor (20) is fixedly connected to the lead screw (21), the outer wall of the lead screw (21) near the second motor (20) passes through the outer wall of the limit box (17) and is rotatably connected, the outer wall of the lead screw (21) away from the second motor (20) is rotatably connected to one side of the inner wall of the limit box (17), and the outer wall of the lead screw (21) is threadedly connected to the inner cavity of the assembly block (19) away from the limit rod (18). One end of the top of the assembly block (19) is rotatably connected to a first winch (22). Welding wire (23) is wound around the surface of the first winch (22). The center of the inner wall of the first winch (22) is slidably connected to the outer wall of the limiting rod (18). The end of the top of the assembly block (19) away from the first winch (22) is fixedly connected to a welding torch (24). The top of the assembly block (19) between the first winch (22) and the welding torch (24) is fixedly connected to a guide frame (25). The inner wall of the guide frame (25) is slidably connected to one end of the welding wire (23). A micro motor (26) is fixedly connected to one side of the outer wall of the guide frame (25). The output end of the micro motor (26) is fixedly connected to the guide frame (25). A conveyor roller shaft (27) is connected. The end of the outer wall of the conveyor roller shaft (27) away from the micro motor (26) is rotatably connected to the inner wall of the guide frame (25). A linkage gear (28) is meshed on the side of the outer wall of the conveyor roller shaft (27) close to the inner wall of the guide frame (25). One side of the outer wall of the linkage gear (28) is rotatably connected to the center of the inner wall of the guide frame (25). One end of the linkage gear (28) is meshed with an auxiliary roller shaft (29). Both sides of the outer wall of the auxiliary roller shaft (29) are rotatably connected to the end of the inner wall of the guide frame (25) away from the conveyor roller shaft (27). The conveyor roller shaft (27) and the auxiliary roller shaft (29) are in contact with one end of the outer wall of the welding wire (23). A telescopic support rod (30) is fixedly connected to the end of the outer wall of the fixed frame (10) away from the extension fixed tube (12). A reset plate (31) is fixedly connected to the output end of the telescopic support rod (30). A reset tube (32) is rotatably connected to the outer wall of the reset plate (31). A ring spring (33) is fixedly connected to the inner wall of the reset tube (32). One end of the ring spring (33) contacts the outer wall of the reset plate (31). A bonding block (34) is fixedly connected to the outer wall of the reset tube (32). A second winch (35) is rotatably connected to one end of the inner wall of the bonding block (34). Asbestos cloth (36) is wrapped around the outer wall of the second winch (35). A roller (37) is rotatably connected to one end of the inner wall of the bonding block (34) away from the second winch (35). The outer wall of the roller (37) is slidably connected to the outer wall of the copper hoop (3). The outer wall of the extension fixing tube (12) is slidably connected to a slider (47). One end of the inner cavity of the slider (47) is slidably connected to the outer wall of the telescopic support rod (30). Both ends of the inner cavity of the slider (47) near the extension fixing tube (12) are slidably connected to inserts (48). The top of the slider (47) is rotatably connected to a second roller (49). The surface of the second roller (49) is slidably connected to the outer wall of the self-anchoring ductile iron pipe (2).

2. The welding device for self-anchoring pipe spigot welding rings for construction sites according to claim 1, characterized in that: A limiting plate (38) is fixedly connected to the center of the top of the push plate (1). A limiting groove (39) is opened on the outer wall of the limiting plate (38). A first sliding rod (40) is slidably connected to the inner wall of the limiting groove (39). The end of the first sliding rod (40) away from the limiting groove (39) is slidably connected to the inner cavity of the top of the push plate (1) away from the electric telescopic platform (4). A partition plate (41) is fixedly connected to the center of the outer wall of the first sliding rod (40). A second sliding rod (42) is fixedly connected to the inner cavity of the partition plate (41) away from the first sliding rod (40). Both ends of the outer wall of the second sliding rod (42) are slidably connected to the inner wall of the limiting groove (39).

3. The welding device for self-anchoring pipe spigot welding rings for construction sites according to claim 2, characterized in that: Two storage slots (43) are opened at the top of the push plate (1) away from the electric telescopic platform (4). An extension plate (44) is rotatably connected to the inner wall of the storage slot (43), and a locking block (45) is fixedly connected to one end of the extension plate (44).

4. The welding device for self-anchoring pipe spigot welding rings for construction sites according to claim 3, characterized in that: One side of the outer wall of the partition (41) contacts the side of the outer wall of the fixing frame (10) near the extension fixing tube (12). Both ends of the outer wall of the partition (41) away from the fixing frame (10) are fixedly connected to card boxes (46). The inner wall of the card box (46) is engaged with the outer wall of the card block (45).

5. The welding device for self-anchoring pipe spigot welding rings for construction sites according to claim 4, characterized in that: Several slots (50) are provided on both sides of the outer wall of the extension fixing tube (12), and the inner wall of the slot (50) is inserted into one end of the outer wall of the plug (48).

6. An operating method for a self-anchoring pipe spigot welding ring welding device for construction sites, wherein the method employs the self-anchoring pipe spigot welding ring welding device for construction sites as described in claim 5, characterized in that... The method is as follows: S1: By starting the electric telescopic platform (4) set at the top end of the push plate (1), the electric telescopic platform (4) drives the mounting frame (5) and the first motor (6) set on its inner wall, and with the transmission rod (7) set at the output end of the first motor (6) as the center, it aligns with the inner center of the self-anchored ductile iron pipe (2), and then uses the welding assembly to weld the self-anchored ductile iron pipe (2); S2: The welding assembly is assembled by setting a welding torch (24) at one end of the top of the assembly block (19) and setting a first winch (22) at the end of the top of the assembly block (19) away from the welding torch (24). Then, the welding wire (23) is wound around the surface of the first winch (22) so that one end of the welding wire (23) passes through the guide frame (25) set between the first winch (22) and the welding torch (24) at the top of the assembly block (19). At this time, the first motor (6) is started, and the electric control telescopic table (8) and the fixed frame (10) are driven by the transmission rod (7) to slowly rotate around the self-anchored ductile iron pipe (2) as the center, so that the welding torch (24) welds around the gap between the two copper hoops (3). S3: By setting an annular spring (33) inside the reset tube (32), the annular spring (33) continuously pushes the roller (37) set at one end of the bonding block (34) to bond with the two copper hoops (3). Since the solder between the copper hoops (3) still has residual heat, the residual heat generated by the solder heats the copper hoops (3) on both sides, so that the asbestos cloth (36) is tightly bonded to the surface of the copper hoop (3) under the melting of the hot melt adhesive at both ends, and the solder is wrapped in the asbestos cloth (36). S4: By pushing the partition (41) placed on the surface of the push plate (1), the partition (41) moves to the end of the limiting groove (39) and flips over, so that the angle between the partition (41) and the push plate (1) is ninety degrees. At this time, by setting two storage slots (43) at the top of the push plate (1) away from the electric telescopic table (4), and pulling up the extension plate (44) set on the inner wall of the storage slot (43), pulling the card block (45) set at one end of the extension plate (44), so that the outer wall of the card block (45) is embedded in the card box (46) set at both ends on one side of the outer wall of the partition (41), the partition (41) is fixed, thereby using the partition (41) to support the fixed frame (10).

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