Pipe welding butt joint device

Abstract

The application discloses a pipeline welding butt joint device, which comprises a first pipeline and a second pipeline, a cushion block is arranged below the first pipeline, the first pipeline is placed on the cushion block, a support moving vehicle is arranged below the second pipeline, the second pipeline is installed on the support moving vehicle, the first pipeline and the second pipeline are on the same straight line, magnetic U-shaped suction cups are installed on the first pipeline and the second pipeline, and auxiliary plates are installed on the top of the magnetic U-shaped suction cups. The second pipeline is moved by the support moving vehicle to realize butt joint with the first pipeline, and the butt joint process will not cause shaking, so that the stability of the first pipeline and the second pipeline during welding is improved. The welding positions of the first pipeline and the second pipeline can be cleaned by the cleaning mechanism, so that the welding failure caused by rust is prevented.

Description

Technical Field

[0001] This invention belongs to the field of pipeline welding technology, and specifically relates to a pipeline welding and butt welding device. Background Technology

[0002] A pipeline is a device made up of pipes, pipe fittings, valves, etc., used to transport gases, liquids, or fluids containing solid particles. After being pressurized by blowers, compressors, pumps, boilers, etc., the fluid flows from the high-pressure point to the low-pressure point in the pipeline. It can also be transported by the fluid's own pressure or gravity. Pipelines have a wide range of uses, especially metal pipelines, which are widely used in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations. In the construction of urban heating systems, uneven weld seams are often found in pipelines, leading to leaks during pipeline operation.

[0003] When welding pipes, the joints of the two pipes must be aligned before welding. This work is usually done manually. One pipe is placed on the ground, and the other pipe is connected with the help of a crane. Because manual pipe connection is prone to shaking, the pipes are unstable during welding, which can lead to alignment errors, resulting in problems such as incomplete welds and large weld joints. At the same time, the pipes may rust. If the weld joints are not cleaned, poor welding will occur, which is detrimental to the pipe welding process. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pipe welding and docking device. By supporting a mobile vehicle to move the second pipe to dock with the first pipe, there will be no shaking during the docking process, which improves the stability of welding the first and second pipes. The cleaning mechanism can clean the weld joint between the first and second pipes to prevent poor welding due to rust.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A pipe welding and butt welding device includes a first pipe and a second pipe. A pad is provided below the first pipe, and the first pipe is placed on the pad. A supporting moving trolley is provided below the second pipe, and the second pipe is mounted on the supporting moving trolley. The first pipe and the second pipe are on the same straight line. Magnetic U-shaped suction cups are installed on both the first pipe and the second pipe. An auxiliary plate is installed on the top of the magnetic U-shaped suction cups. A clamping mechanism is installed at one end of the auxiliary plate that is close to each other. A sliding mechanism is installed at the top between the two clamping mechanisms. A cleaning mechanism is installed on one side of the two clamping mechanisms that is close to each other. The top of the cleaning mechanism is connected to the sliding mechanism. A movable plate is provided above the two clamping mechanisms. A lifting wire rod is installed above the auxiliary plate above the first pipe. The top of the lifting wire rod passes through the movable plate and extends above the movable plate. A nut is installed on the movable plate, and the lifting wire rod is threadedly connected to the nut on the movable plate.

[0006] The clamping mechanism includes a frame, trapezoidal sliders, and a central trapezoidal block. There are two trapezoidal sliders, which are symmetrically installed in the frame. The trapezoidal sliders are slidably connected to the frame through protrusions on both sides of the bottom. The two trapezoidal sliders are slidably connected to the central trapezoidal block through a dovetail groove. An auxiliary connecting rod is hinged to the upper part of the center of the central trapezoidal block. A movable V-shaped block is fixedly installed below the trapezoidal slider. The V-shaped notch of the movable V-shaped block is parallel to the direction of the pipe axis. The auxiliary connecting rod above the first pipe passes through the frame and connects to the bottom of the movable plate.

[0007] The sliding mechanism includes a drive motor, a transmission shaft, and a guide rail. The drive motor is mounted above the clamping mechanism above the first pipe. The transmission shaft is connected to the output end of the drive motor. The end of the transmission shaft away from the drive motor is a threaded rod. An auxiliary connecting rod on the clamping assembly above the second pipe is connected to the guide rail mounted on the bottom of the movable plate. An auxiliary block is mounted on the clamping assembly above the second pipe. A keyed rotating cylinder is rotatably mounted on the auxiliary block via a bearing. A guide keyway corresponding to the keyed rotating cylinder is opened at the end of the transmission shaft near the auxiliary block. The inner hole of the keyed rotating cylinder is threaded. The screw on the transmission shaft is threaded to the inner hole of the keyed rotating cylinder.

[0008] The cleaning mechanism includes a first worm, a barrel-shaped cam, a second worm, a first grinding wheel, and a second grinding wheel. A fixed frame is mounted on the side of the clamping mechanism above the first pipe near the auxiliary block via an auxiliary plate. A first worm gear is mounted on the auxiliary plate via a first rotating shaft. The first worm is located above the first worm gear and mounted on a transmission shaft, meshing with the first worm gear. A first transmission wheel is mounted on the end of the first rotating shaft away from the first worm gear. A support frame is mounted on the fixed frame. The barrel-shaped cam is rotatably mounted on the support frame. A guide groove is provided on the barrel-shaped cam. A second transmission wheel is coaxially mounted on one side of the barrel-shaped cam, located outside the support frame. The first and second transmission wheels are connected by a transmission belt. A first gear is mounted on the end of the keyed rotating cylinder away from the auxiliary block. A fixed frame is mounted on the side of the clamping mechanism above the second pipe near the drive motor via an auxiliary plate. A second gear is rotatably mounted on the fixed frame, located below and meshing with the first gear. A second worm coaxial with the second gear is also mounted on the fixed frame. The auxiliary plate also... A second worm gear is installed on the second rotating shaft, and the second worm gear meshes with a second worm. A first transmission wheel is installed at the end of the second rotating shaft away from the second worm gear. A support frame is installed on the fixed frame. A barrel-shaped cam is rotatably mounted on the support frame. A guide groove is opened on the barrel-shaped cam. A second transmission wheel is coaxially installed on one side of the barrel-shaped cam. The second transmission wheel is located outside the support frame. The first transmission wheel and the second transmission wheel are connected by a transmission belt. Guide rods are installed at the bottom of both support frames. A cross slider is slidably installed on the guide rod. A cross slider is installed above the cross slider. The device includes a guide post located within the guide groove of a barrel-shaped cam. A rack is installed below the cross slider. The first and second grinding wheels are semi-annular and are fixedly installed at the ends of the first and second pipes. The first grinding wheel is located above the second grinding wheel. Brushes are provided on the inner rings of the first and second grinding wheels. An auxiliary guide seat is installed on the side of the first grinding wheel near the clamping mechanism. An auxiliary rod is slidably installed on the side of the auxiliary guide seat. The end of the auxiliary rod is connected to the frame. An arc-shaped gear is installed on the first grinding wheel, and the arc-shaped gear and rack are meshed together.

[0009] Preferably, a lifting rope is installed on the second pipe, which facilitates the movement of the second pipe onto the support vehicle.

[0010] The beneficial effects of this invention are: 1) The second pipe is moved by a support vehicle to connect with the first pipe. There will be no shaking during the connection process, which improves the stability of welding the first and second pipes. The cleaning mechanism can clean the weld between the first and second pipes to prevent poor welding due to rust.

[0011] 2) A lifting rope is installed on the second pipe, which facilitates the movement of the second pipe onto the support vehicle. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the structure of a pipe welding and docking device according to the present invention.

[0013] Appendix Figure 2 It is attached Figure 1 Sectional view along the AA direction.

[0014] Appendix Figure 3 It is attached Figure 1 Sectional view along the BB direction.

[0015] Appendix Figure 4 This is a schematic diagram of the clamping mechanism in a pipe welding and butt welding device of the present invention.

[0016] Appendix Figure 5 This is an exploded view of the clamping mechanism in a pipe welding and butt welding device of the present invention.

[0017] Appendix Figure 6 This is a schematic diagram of the barrel-shaped cam and cross slider structure in a pipe welding and docking device of the present invention.

[0018] Appendix Figure 7 This is a schematic diagram of the structure of the first grinding wheel and the second grinding wheel in a pipe welding and butt welding device of the present invention.

[0019] Appendix Figure 8 It is attached Figure 7 Sectional view along the CC direction.

[0020] In the diagram: 1. Magnetic U-shaped suction cup; 2. Movable V-shaped block; 3. Clamping mechanism; 301. Frame; 302. Trapezoidal slider; 303. Central trapezoidal block; 4. Lifting electric screw; 5. Movable plate; 6. Nut; 7. Drive motor; 8. Auxiliary connecting rod; 9. Transmission shaft; 10. First worm gear; 11. First transmission wheel; 12. Transmission belt; 13. Second transmission wheel; 14. Barrel cam; 15. Guide rail; 16. Second worm gear; 17. First gear; 18. Keyed rotary cylinder; 19. Second gear; 20. Cross slider; 21. Rack; 22. First grinding wheel; 23. Auxiliary rod; 231. Auxiliary guide seat; 24. Support moving carriage; 25. Second grinding wheel; 26. First pipe; 27. Pad; 28. Second pipe; 29. ​​Lifting rope; 30. Support frame; 31. Guide rod. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-8The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0023] A pipe welding and butt welding device includes a first pipe 26 and a second pipe 28. A pad 27 is provided below the first pipe 26, and the first pipe 26 is placed on the pad 27. A support moving cart 24 is provided below the second pipe 28, and the second pipe 28 is mounted on the support moving cart 24. The first pipe 26 and the second pipe 28 are on the same straight line. Magnetic U-shaped suction cups 1 are installed on both the first pipe 26 and the second pipe 28. An auxiliary plate is installed on the top of the magnetic U-shaped suction cups 1. Clamping mechanisms 3 are installed at the ends of the auxiliary plates that are close to each other. A sliding mechanism is installed at the top between the two clamping mechanisms 3. A cleaning mechanism is installed on the side of the two clamping mechanisms that are close to each other. The top of the cleaning mechanism is connected to the sliding mechanism. A movable plate 5 is provided above the two clamping mechanisms 3. A lifting wire rod 4 is installed above the auxiliary plate above the first pipe 26. The top of the lifting wire rod 4 passes through the movable plate 5 and extends above the movable plate 5. A nut 6 is installed on the movable plate 5. The lifting wire rod 4 is threadedly connected to the nut 6 on the movable plate 5.

[0024] The clamping mechanism 3 includes a frame 301, trapezoidal sliders 302, and a central trapezoidal block 303. There are two trapezoidal sliders 302, which are symmetrically installed in the frame 301. The trapezoidal sliders 302 are slidably connected to the frame 301 through protrusions on both sides of the bottom. The central trapezoidal block 303 is slidably connected between the two trapezoidal sliders 302 through a dovetail groove. An auxiliary connecting rod 8 is hinged above the middle of the central trapezoidal block 303. A movable V-shaped block 2 is fixedly installed below the trapezoidal sliders 302. The V-shaped notch of the movable V-shaped block 2 is parallel to the direction of the pipe axis. The auxiliary connecting rod 8 above the first pipe 26 passes through the frame 301 and is connected to the bottom of the movable plate 5.

[0025] The sliding mechanism includes a drive motor 7, a transmission shaft 9, and a guide rail 15. The drive motor 7 is installed above the clamping mechanism 3 above the first pipe 26. The transmission shaft 9 is connected to the output end of the drive motor 7. The end of the transmission shaft 9 away from the drive motor 7 is a threaded rod. The auxiliary connecting rod 8 on the clamping assembly above the second pipe 28 is connected to the guide rail 15 installed at the bottom of the movable plate 5. An auxiliary block is installed on the clamping mechanism 3 above the second pipe 28. A keyed rotating cylinder 18 is rotatably mounted on the auxiliary block through a bearing. The end of the transmission shaft 9 near the auxiliary block has a guide keyway that matches the keyed rotating cylinder 18. The inner hole of the keyed rotating cylinder 18 is threaded. The screw on the transmission shaft 9 is threadedly connected to the inner hole of the keyed rotating cylinder 18.

[0026] The cleaning mechanism includes a first worm gear 10, a barrel cam 14, a second worm gear 16, a first grinding wheel 22, and a second grinding wheel 25. A clamping mechanism 3 above the first pipe 26 has a fixed frame mounted on an auxiliary plate near the auxiliary block. The auxiliary plate has a first worm wheel mounted on it via a first rotating shaft. The first worm gear 10 is located above the first worm wheel and mounted on a transmission shaft 9, meshing with the first worm wheel. A first transmission wheel 11 is mounted on the end of the first rotating shaft away from the first worm wheel. A support frame 30 is mounted on the fixed frame, and the barrel cam 14 is rotatably mounted on the support frame 30. A guide groove is provided on the barrel cam 14. A second transmission wheel 13 is coaxially mounted on one side of the barrel-shaped cam 14. The second transmission wheel 13 is located outside the support frame 30. The first transmission wheel 11 and the second transmission wheel 13 are connected by a transmission belt 12. A first gear 17 is mounted on the end of the keyed rotary drum 18 away from the auxiliary block. A fixed frame is mounted on the side of the clamping mechanism 3 above the second pipe 28 near the drive motor 7 via an auxiliary plate. A second gear 19 is rotatably mounted on the fixed frame. The second gear 19 is located below the first gear 17 and meshes with the first gear 17. A second worm gear 16 coaxial with the second gear 19 is also mounted on the fixed frame. The auxiliary plate is also mounted via a second rotating shaft. The second worm gear meshes with the second worm 16. A first transmission wheel 11 is mounted on the end of the second rotating shaft furthest from the second worm gear. A support frame 30 is mounted on the fixed frame. A barrel-shaped cam 14 is rotatably mounted on the support frame 30. A guide groove is provided on the barrel-shaped cam 14. A second transmission wheel 13 is coaxially mounted on one side of the barrel-shaped cam 14. The second transmission wheel 13 is located outside the support frame 30. The first transmission wheel 11 and the second transmission wheel 13 are connected by a transmission belt 12. Guide rods 31 are mounted at the bottom of both support frames 30. A cross slider 20 is slidably mounted on the guide rod 31. A guide post is mounted above the cross slider 20. The guide post is located in the guide groove of the barrel-shaped cam 14. A rack 21 is installed below the cross slider 20. The first grinding wheel 22 and the second grinding wheel 25 are semi-annular and are fixedly installed at the ends of the first pipe 26 and the second pipe 28. The first grinding wheel 22 is located above the second grinding wheel 25. Brushes are provided on the inner rings of the first grinding wheel 22 and the second grinding wheel 25. An auxiliary guide seat 231 is installed on the side of the first grinding wheel 22 near the clamping mechanism 3. An auxiliary rod 23 is slidably installed on the side of the auxiliary guide seat 231. The end of the auxiliary rod 23 is connected to the frame 301. An arc-shaped gear is installed on the first grinding wheel 22, and the arc-shaped gear is meshed with the rack 21. A suspension rope 29 is installed on the second pipe 28, which facilitates the movement of the second pipe 28 onto the support moving vehicle 24.

[0027] A pipe welding and butt welding device operates as follows: The first pipe 26 to be welded is placed on a pad 27. The second pipe 28 to be welded is hoisted to the work site using an auxiliary sling and placed on a support trolley 24, ensuring the first pipe 26 and the second pipe 28 are on the same horizontal line. The lifting screw 4 is activated, causing the movable plate 5 to move upwards under the action of the screw nut 6. Two sets of auxiliary connecting rods 8 drive two sets of central trapezoidal blocks, causing the trapezoidal slider 302 to move towards the center, and the movable V-block 2 to move towards the center, thus centering and clamping the first pipe 26 and the second pipe 28. At this time, the magnetic U-shaped suction cup 1 is opened to generate magnetism, firmly attracting the first pipe 26 and the second pipe 28. The first grinding wheel 22 and the second grinding wheel 25 are installed at the ends of the first pipe 26 and the second pipe 28 via the auxiliary guide seat 231, the auxiliary rod 23, and the set bolt. The drive motor 7 is activated to drive the transmission shaft 9 to rotate, via the first worm gear... The meshing of rod 10 with the first worm gear and the meshing of the second worm 16 with the second worm gear drive the first transmission wheel 11 to rotate. The second transmission wheel 13 rotates under the action of the transmission belt 12, which in turn drives the barrel cam 14 to rotate. The two sets of barrel cams 14 rotate, and under the action of the guide groove of the barrel cam 14, the cross slider 20 moves back and forth, which in turn causes the rack 21 to move back and forth. The whole assembly of the first grinding wheel 22 and the second grinding wheel 25 rotates back and forth with the assistance of the auxiliary guide seat 231 and the auxiliary rod 23, thereby cleaning the outer surfaces of the first pipe 26 and the second pipe 28. At the same time, the rotation of the transmission shaft 9 drives the auxiliary block on the frame 301 above the second pipe 28 to move along the transmission shaft 9, which in turn drives the second pipe 28 to move. After the first pipe 26 and the second pipe 28 are successfully connected under the action of the supporting moving vehicle 24, the first grinding wheel 22 and the second grinding wheel 25 are removed and welded together.

[0028] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A pipe welding and butt welding device, comprising a first pipe and a second pipe, characterized in that, A pad is placed below the first pipe, and the first pipe rests on the pad. A supporting trolley is placed below the second pipe, and the second pipe is mounted on the supporting trolley. The first and second pipes are aligned in a straight line. Magnetic U-shaped suction cups are installed on both the first and second pipes. An auxiliary plate is installed on the top of each magnetic U-shaped suction cup. A clamping mechanism is installed at one end of the auxiliary plate that is close to each other. A sliding mechanism is installed at the top between the two clamping mechanisms. A cleaning mechanism is installed on one side of the two clamping mechanisms that is close to each other. The top of the cleaning mechanism is connected to the sliding mechanism. The device is equipped with a movable plate. A lifting electric wire rod is installed above the auxiliary plate above the first pipe. The top end of the lifting electric wire rod passes through the movable plate and extends above the movable plate. A nut is installed on the movable plate. The lifting electric wire rod is threadedly connected to the nut on the movable plate. The sliding mechanism includes a drive motor and a transmission shaft. The drive motor is installed above the clamping mechanism above the first pipe. An auxiliary block is installed on the clamping mechanism above the second pipe. A keyed rotating cylinder is rotatably installed on the auxiliary block through a bearing. The transmission shaft is connected to the output end of the drive motor. The end of the transmission shaft away from the drive motor is a threaded rod. The cleaning mechanism includes a first worm, a first barrel-shaped cam, a second barrel-shaped cam, a second worm, a first grinding wheel, and a second grinding wheel. A first fixed frame is mounted on the side of the clamping mechanism above the first pipe near the auxiliary block via a first auxiliary plate. A first worm wheel is mounted on the first auxiliary plate via a first rotating shaft. The first worm is located above the first worm wheel and mounted on a transmission shaft, meshing with the first worm wheel. A first transmission wheel is mounted on the end of the first rotating shaft away from the first worm wheel. A first support frame is mounted on the first fixed frame, and the first barrel-shaped cam is rotatably mounted on the first support frame. A guide groove is provided on the first barrel-shaped cam. A second transmission wheel is coaxially mounted on one side of the first barrel-shaped cam. The second transmission wheel is located outside the first support frame. The first transmission wheel and the second transmission wheel are connected by a first transmission belt. A first gear is mounted on the end of the keyed rotary drum away from the auxiliary block. A second fixed frame is mounted on the side of the clamping mechanism above the second pipe near the drive motor via a second auxiliary plate. A second gear is rotatably mounted on the second fixed frame. The second gear is located below the first gear and meshes with the first gear. A second worm gear coaxial with the second gear is also mounted on the second fixed frame. The auxiliary plate is also equipped with a second worm gear via a second rotating shaft. The second worm gear meshes with a second worm. A third transmission wheel is mounted on the end of the second rotating shaft away from the second worm gear. A second support frame is mounted on the second fixed frame. The second barrel-shaped cam is rotatably mounted on the second support frame. A second guide groove is provided on the second barrel-shaped cam. A fourth transmission wheel is coaxially mounted on one side of the second barrel-shaped cam. The fourth transmission wheel is located outside the second support frame. The third transmission wheel and the fourth transmission wheel are connected by a second transmission belt. Guide rods are mounted at the bottom of both support frames. Cross sliders are slidably mounted on the guide rods. A guide post is installed above the block, and the guide post is located in the guide groove of the first barrel-shaped cam and the second barrel-shaped cam. A rack is installed below the cross slider. The first grinding wheel and the second grinding wheel are semi-annular and are installed at the ends of the first pipe and the second pipe by set bolts. The first grinding wheel is located above the second grinding wheel. Brushes are provided on the inner rings of the first grinding wheel and the second grinding wheel. An auxiliary guide seat is installed on the side of the first grinding wheel near the clamping mechanism. An auxiliary rod is slidably installed on the side of the auxiliary guide seat. The end of the auxiliary rod is connected to the frame. An arc gear is installed on the first grinding wheel, and the arc gear meshes with the rack.

2. The pipe welding and butt welding device according to claim 1, characterized in that, The clamping mechanism includes a frame, trapezoidal sliders, and a central trapezoidal block. There are two trapezoidal sliders, which are symmetrically installed in the frame. The trapezoidal sliders are slidably connected to the frame through protrusions on both sides of the bottom. The two trapezoidal sliders are slidably connected to the central trapezoidal block through a dovetail groove. An auxiliary connecting rod is hinged to the upper part of the center of the central trapezoidal block. A movable V-shaped block is fixedly installed below the trapezoidal slider. The V-shaped notch of the movable V-shaped block is parallel to the direction of the pipe axis. The auxiliary connecting rod above the first pipe passes through the frame and connects to the bottom of the movable plate.

3. The pipe welding and butt welding device according to claim 1, characterized in that, The sliding mechanism also includes a guide rail. The auxiliary connecting rod on the clamping mechanism above the second pipe is connected to the guide rail installed at the bottom of the movable plate. The end of the drive shaft near the auxiliary block is provided with a guide keyway that matches the keyed rotating cylinder. The inner hole of the keyed rotating cylinder is threaded, and the screw on the drive shaft is threaded to the inner hole of the keyed rotating cylinder.

4. The pipe welding and butt welding device according to claim 1, characterized in that, The second pipe is equipped with a lifting rope, which facilitates the movement of the second pipe onto the support vehicle.

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