Pipeline groove grinding and welding device

Abstract

The invention relates to the technical field of pipeline grinding and welding, in particular to a pipeline groove grinding and welding device which comprises a supporting assembly, an adjusting ring frame, a buckling ring frame, a telescopic assembly, a machining assembly, a grinding assembly and a welding assembly. The adjusting ring frame is in transmission connection with one side of the supporting assembly through a gear and gear ring structure, one end of the adjusting ring frame is hinged to a buckling ring frame, a gear ring is arranged in the middle of the adjusting ring frame, a matching ring is arranged in the middle of the buckling ring frame, and the machining assembly is movably matched with the gear ring or the matching ring to move and provided with a grinding assembly and a welding assembly. Telescopic assemblies are arranged on the two sides of the gear ring and the matching ring correspondingly, and jacking pieces are arranged on the telescopic assemblies in the radial direction of the outer side of the pipeline. By means of the device, pipeline groove grinding and welding procedures can be continuously carried out, meanwhile, alignment work of large-diameter pipelines can be conveniently achieved, the construction procedures are simplified, and the construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of pipe grinding and welding technology, and specifically to a pipe beveling and welding device. Background Technology

[0002] Currently, pipeline welding construction generally adopts a step-by-step independent operation method: first, grinding equipment is used to grind the bevel, and after the residual debris left on the bevel is completely cleaned, welding is carried out using automatic welding equipment or manually. The grinding and welding processes are carried out independently, and the equipment is repeatedly installed and positioned, which increases the auxiliary operation time, resulting in low work efficiency, large equipment investment, and poor process connection in pipeline grinding and welding construction.

[0003] Some existing technologies provide devices that integrate beveling and welding equipment. A circular track is fitted onto the pipe, and a carriage moves along the track. The grinding and welding equipment is mounted on the carriage, thus completing automatic grinding and welding. However, for large-diameter pipes, such as municipal water supply and drainage pipes and heating pipes, auxiliary mechanical equipment such as pipe alignment tools are required during welding to ensure that the two pipe sections are aligned axially, have parallel end faces, and uniform gaps before welding. Existing pipe beveling and welding devices are not suitable for aligning large-diameter pipes, and the construction efficiency of pipe grinding and welding still needs to be improved, and the construction procedures need to be simplified. Summary of the Invention

[0004] The purpose of this invention is to provide a pipe beveling and welding apparatus to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pipe beveling and welding device is used for grinding and welding two pipes. It includes a support assembly, an adjusting ring frame, a locking ring frame, a telescopic assembly, a processing assembly, a grinding assembly, and a welding assembly. The support assembly is fixed to the trench ground outside the pipes and is positioned near the gap between the two pipes. The adjusting ring frame is connected to one side of the support assembly via a gear and ring structure. One end of the adjusting ring frame is hinged to a locking ring frame. The adjusting ring frame and the locking ring frame can clamp the two pipes when engaged. A gear ring is located in the middle of the adjusting ring frame, and a mating ring is located in the middle of the locking ring frame. A track is located in the middle of the inner side of the gear ring, and a mating rail is located in the middle of the mating ring. The track and the mating rail are interconnected. The processing assembly moves movably with the track or the mating rail. The grinding assembly and the welding assembly are mounted on the processing assembly. Telescopic assemblies are located on both sides of the gear ring and the mating ring, and a tightening member is provided on the telescopic assembly along the radial direction of the outer side of the pipe.

[0007] Furthermore, the support assembly includes a base, a support rod, and a drive gear. The base is fixed to the ground, and the support rod is connected to the base through three sets of mutually perpendicular lead screw mechanisms. A drive gear is rotatably mounted on the side of the support rod near the pipe, and a gear ring meshes with the drive gear.

[0008] Furthermore, the upper and lower parts of the support rod are symmetrically provided with diagonal bracing rods on the side near the pipe. The ends of the diagonal bracing rods are fixedly connected to a limiting shell. Multiple spaced limiting teeth are symmetrically provided on both sides of the outer edge of the toothed ring. The toothed ring passes through the limiting shell, and the limiting shell and the toothed ring are in sliding fit. Locking components are symmetrically provided on both sides of the limiting shell, and the locking components are engaged with or disengaged from the limiting teeth.

[0009] Furthermore, the adjusting ring frame is symmetrically provided with first hoop rings on both sides, and multiple support wheel sets are provided at intervals on the inner side of the first hoop rings. The support wheel sets include rollers and positioning telescopic rods. The positioning telescopic rods are installed radially, and the rollers are rotatably connected to the movable end of the positioning telescopic rods.

[0010] Furthermore, the buckle frame is symmetrically provided with second hoop rings on both sides, and the second hoop rings are hinged to the corresponding first hoop rings. The hinged ends of the first hoop rings and the second hoop rings are provided with a closing assembly, including a closing drive rod. The fixed end of the closing drive rod is installed on the outside of the first hoop ring, and the movable end of the closing drive rod drives the end of the second hoop ring to open or close through a crank-connecting rod mechanism.

[0011] Furthermore, the telescopic assembly includes a telescopic drive rod and a telescopic locking component, and there are several telescopic drive rods and telescopic locking components. One end of the telescopic drive rod and the telescopic locking component is connected to a first hoop or a second hoop, and the other end is connected to a toothed ring or a mating ring. A tightening component is installed radially on the telescopic locking component, and the end of the tightening component abuts against or separates from the pipe.

[0012] Furthermore, the processing assembly includes a frame, a fine-tuning plate, and a mounting plate. The frame moves in conjunction with a track or mating rail. The fine-tuning plate is located inside the frame and is connected to the frame via a fine-tuning screw mechanism. The mounting plate is located on the side of the fine-tuning plate away from the frame. An adjusting electric push rod is installed between the mounting plate and the fine-tuning plate. Grinding and welding components are installed at both ends of the mounting plate. A camera is installed in the middle of the side of the mounting plate away from the frame.

[0013] Furthermore, the grinding assembly includes a servo motor, a grinding adjustment arm, a grinding telescopic arm, and a grinding blade. The servo motor is installed in the middle of one end of the mounting plate. The output shaft of the servo motor is connected to a grinding connecting arm. One end of the grinding adjustment arm is hinged to the end of the grinding connecting arm, and the other end is equipped with a grinding blade. One end of the grinding telescopic arm is hinged to the side of the grinding connecting arm, and the other end is hinged to the side of the grinding adjustment arm.

[0014] Furthermore, the welding assembly includes a welding electric actuator, a welding adjusting arm, a welding telescopic arm, and a welding torch. The welding electric actuator is installed in the middle of the other end of the mounting plate. A welding connecting arm is fixedly connected to the movable end of the welding electric actuator. One end of the welding adjusting arm is hinged to the end of the welding connecting arm, and the other end is equipped with a welding torch. One end of the welding telescopic arm is hinged to the side of the welding connecting arm, and the other end is hinged to the side of the welding adjusting arm.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides a pipe beveling and welding device, wherein the support component is provided with a drive gear, which can drive the adjusting ring frame to rotate around the pipe axis, automatically completing the positioning of the adjusting ring frame relative to the fixed pipe, and the buckle frame can engage with the adjusting ring frame, thereby centering and clamping the pipe. The processing component can move along the circumference of the entire device. While performing beveling and welding work on large-diameter pipes, it can more conveniently realize the alignment work of large-diameter pipes.

[0017] 2. The pipe beveling and welding device provided by the present invention enables continuous pipe beveling and welding work without repeated disassembly and reinstallation of the device after installation, which simplifies the construction process, reduces construction errors, and improves the construction efficiency of pipe beveling and welding.

[0018] 3. The present invention provides a pipe beveling and welding device, which enables the beveling process of two pipes to be performed continuously between two aligned pipes, and the beveling angle error of the two pipes is small, which helps to ensure the symmetry of the weld and improve the welding quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation stage of the pipe beveling and welding device described in this invention;

[0020] Figure 2 for Figure 1 Schematic diagram at point A in the middle;

[0021] Figure 3 for Figure 1 Schematic diagram at point B in the middle;

[0022] Figure 4 This is a schematic diagram of the support component structure described in this invention;

[0023] Figure 5 This is a schematic diagram of the connection structure between the central ring frame and the support assembly described in this invention;

[0024] Figure 6 This is a schematic diagram of the locking assembly structure described in this invention;

[0025] Figure 7 This is a schematic diagram of the inner structure of the toothed ring described in this invention;

[0026] Figure 8 This is a schematic diagram of the closed component structure described in this invention;

[0027] Figure 9 This is a schematic diagram of the connection structure between the vehicle frame and the central support as described in this invention;

[0028] Figure 10 This is a schematic diagram of the grinding stage structure of the pipe beveling and welding device according to the present invention.

[0029] Figure 11 for Figure 10 Diagram at point C;

[0030] Figure 12 This is a schematic diagram of the welding stage structure of the pipe beveling and welding device described in this invention.

[0031] Figure 13 for Figure 12 Schematic diagram at point D.

[0032] In the diagram: 1. Support assembly; 11. Base; 111. Horizontal lead screw; 112. Horizontal slide seat; 113. Sliding lead screw; 114. Sliding seat; 115. Vertical lead screw; 12. Support rod; 121. Vertical slide table; 122. Gear box; 123. Diagonal brace; 124. Limiting shell; 13. Drive gear; 14. Locking assembly; 141. Gear plate; 142. Electromagnetic push rod; 143. Locking spring; 15. Fixing plate; 2. 21. Adjusting ring frame; 22. First hoop ring; 22. Support wheel assembly; 221. Roller; 222. Positioning telescopic rod; 23. Toothed ring; 231. Track; 232. Limiting sliding groove; 233. Limiting groove; 234. Limiting tooth; 3. Interlocking ring frame; 31. Second hoop ring; 311. Mounting boss; 312. First bracket; 313. Second bracket; 314. Closing drive rod; 315. First connecting rod; 316. Crank; 317. Second connecting rod; 32, mating ring; 321, mating rail; 322, mating sliding groove; 4, telescopic assembly; 41, telescopic drive rod; 42, telescopic locking component; 421, locking sleeve; 422, telescopic beam; 423, locking screw; 43, clamping component; 5, machining assembly; 50, frame; 51, drive wheel; 52, limit block; 53, adjusting electric actuator; 54, mounting plate; 541, camera; 55, fine-tuning plate; 551. 56. Fine-tuning boss; 57. Fine-tuning screw; 6. Fine-tuning slide; 6. Grinding assembly; 61. Servo; 62. Grinding connecting arm; 63. Grinding adjusting arm; 64. Grinding telescopic arm; 65. Grinding blade; 66. Suction cup; 661. Support rod; 662. Waste slag box; 663. Hoses; 7. Welding assembly; 71. Welding electric actuator; 72. Welding connecting arm; 73. Welding adjusting arm; 74. Welding telescopic arm; 75. Welding torch; 8. Pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the following description of the invention, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "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 the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. The term "connection" simply indicates a connection between devices and has no special meaning.

[0035] Furthermore, the technical fields and installation methods involved in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Specific implementation examples Figures 1-13 The device described above is a pipe beveling and welding apparatus for grinding and welding two pipes 8. It includes a support assembly 1, an adjusting ring frame 2, a locking ring frame 3, a telescopic assembly 4, a processing assembly 5, a grinding assembly 6, and a welding assembly 7. One pipe 8 is fixedly installed in a trench, while the other pipe 8 is installed in the trench but not fixed. The support assembly 1 is fixed to the trench floor outside the pipes 8 and is positioned near the gap between the two pipes 8. The adjusting ring frame 2 is connected to one side of the support assembly 1 via a gear and ring structure. One end of the adjusting ring frame 2 is hinged with a locking ring. The frame 3, adjusting ring frame 2, and interlocking ring frame 3 can clamp two pipes 8 when they are engaged. The adjusting ring frame 2 is provided with a toothed ring 23 in the middle, and the interlocking ring frame 3 is provided with a mating ring 32 in the middle. The toothed ring 23 is provided with a track 231 in the middle of its inner side, and the mating ring 32 is provided with a mating rail 321 in the middle. The track 231 and the mating rail 321 can be connected. The processing component 5 can move in conjunction with the track 231 or the mating rail 321. The processing component 5 is provided with a grinding component 6 and a welding component 7. The toothed ring 23 and the mating ring 32 are provided with telescopic components 4 on both sides. The telescopic components 4 are provided with a tightening member 43 along the radial direction of the outer side of the pipe 8.

[0037] Furthermore, the support assembly 1 includes a base 11, a transverse sliding seat 112, a sliding seat 114, a support rod 12, and a drive gear 13. A fixing plate 15 is fixedly mounted on the lower part of the base 11, and the fixing plate 15 is fixed to the ground by anchor bolts. A transverse sliding screw 111 is horizontally mounted in the middle of the base 11, with both ends of the transverse sliding screw 111 rotatably connected to both sides of the base 11. One end of the transverse sliding screw 111 is connected to a transverse motor. The transverse sliding seat 112 is slidably mounted inside the base 11, and its lower middle part is threadedly connected to the transverse sliding screw 111. A sliding screw 113 is horizontally mounted in the middle of the transverse sliding seat 112, with both ends of the sliding screw 113 rotatably connected to the front and rear ends of the transverse sliding seat 112. The transverse sliding screw 111 and the sliding screw 113 are vertically mounted, with one end of the sliding screw 113 connected to a sliding motor. The sliding seat 114 is slidably mounted on the transverse sliding seat 112. Inside, the lower middle part of the sliding seat 114 is threadedly connected to the sliding screw 113. A vertical moving groove is opened inside the upper part of the sliding seat 114. Two vertical moving screws 115 are vertically arranged on both sides of the vertical moving groove. The two ends of the vertical moving screws 115 are rotatably connected to the upper and lower ends of the vertical moving groove, respectively. One end of the vertical moving screw 115 is connected to a vertical moving motor. A clearance groove is opened at the upper end of the sliding seat 114. The lower part of the support rod 12 passes through the clearance groove and extends into the vertical moving groove. The lower end of the support rod 12 is fixedly connected to a vertical moving slide 121. The vertical moving slide 121 is slidably connected to the sliding seat 114. The two sides of the vertical moving slide 121 are threadedly connected to the corresponding vertical moving screws 115, respectively. By controlling the horizontal moving motor, the sliding motor and the vertical moving motor, the support rod 12 can move along the horizontal, front-back and vertical directions of the base 11, thereby adjusting the relative position of the support rod 12 and the toothed ring 23 and the pipe 8 in various directions.

[0038] Furthermore, a gearbox 122 is provided on the side of the support rod 12 near the pipe 8, and a drive motor is installed on one side of the gearbox 122. The drive gear 13 is rotatably disposed in the gearbox 122 and is connected to the output shaft of the drive motor. The gear ring 23 is meshed with the drive gear 13. Symmetrical diagonal braces 123 are provided on the upper and lower parts of the support rod 12. The diagonal braces 123 are located on the side of the support rod 12 near the pipe 8, and the ends of the diagonal braces 123 are fixed. The toothed ring 23 is connected to the limiting shell 124. Multiple spaced limiting teeth 234 are symmetrically arranged on both sides of the outer edge of the toothed ring 23. Limiting grooves 233 are symmetrically opened on both sides of the toothed ring 23 near the limiting teeth 234. The toothed ring 23 and the limiting teeth 234 pass through the limiting shell 124. The two sides of the limiting shell 124 are respectively inserted into the limiting grooves 233 on both sides. The limiting shell 124 and the limiting grooves 233 slide in fit, so that the toothed ring 23 can be limited when the driving gear 13 drives the toothed ring 23 to rotate.

[0039] Furthermore, locking assemblies 14 are symmetrically arranged on both sides of the limiting shell 124. Each locking assembly 14 includes a toothed plate 141, an electromagnetic push rod 142, and a locking spring 143. The electromagnetic push rod 142 is mounted on the side wall of the limiting shell 124. The toothed plate 141 is fixedly connected to the end of the moving iron core of the electromagnetic push rod 142. The teeth of the toothed plate 141 engage with the limiting teeth 234. When the electromagnetic push rod 142 is energized, the moving iron core of the electromagnetic push rod 142... When the toothed plate 141 contracts, it separates from the limiting tooth 234, and the limiting tooth 234 unlocks from the limiting shell 124, allowing it to rotate under the drive of the drive gear 13. When the electromagnetic push rod 142 is de-energized, the moving iron core of the electromagnetic push rod 142 extends, and the toothed plate 141 moves toward the limiting tooth 234 until the toothed plate 141 engages with the limiting tooth 234, locking the limiting tooth 234 with the limiting shell 124, thereby locking and fixing the toothed ring 23 to the support rod 12.

[0040] Furthermore, the adjusting ring frame 2 is symmetrically provided with first hoop rings 21 on both sides. Multiple support wheel sets 22 are spaced apart on the inner side of the first hoop rings 21. Each support wheel set 22 includes a roller 221 and a positioning telescopic rod 222. The positioning telescopic rod 222 is installed radially. The roller 221 is rotatably connected to the movable end of the positioning telescopic rod 222. The roller 221 is filled with gas. The outer surface of the roller 221 is made of an elastic material, such as rubber, which allows the roller 221 to undergo a certain deformation. The length of the positioning telescopic rod 222 is adjusted according to the pipe diameter of the pipe 8. By controlling the sliding motor and the vertical movement motor, the telescopic component 4 can also be adjusted simultaneously to adjust the relative position of the roller 221 and the pipe 8 on the same side until the roller 221 abuts against the pipe 8 on the same side. At this time, the first hoop ring 21 is coaxial with the pipe 8 on the same side.

[0041] Furthermore, the buckle frame 3 is symmetrically provided with second hoop rings 31 on both sides. The second hoop rings 31 are hinged to the corresponding first hoop rings 21. The hinged ends of the first hoop rings 21 and the second hoop rings 31 are provided with a closing assembly, including a closing drive rod 314, a first connecting rod 315, a crank 316, and a second connecting rod 317. The side of the first hoop ring 21 away from the toothed ring 23 is provided with a mounting boss 311. A first bracket 312 and a second bracket 313 are fixedly provided on the mounting boss 311. The fixed end of the closing drive rod 314 is installed on the first bracket 312. One end of the crank 316 is hinged to the second bracket 313, and the other end is hinged to one end of the first connecting rod 315 and the second connecting rod 317 respectively. The other end of the first connecting rod 315 is connected to... The movable end of the closing drive rod 314 is hinged, and the other end of the second connecting rod 317 is hinged to the end of the second hoop 31. The closing drive rod 314, the first connecting rod 315, and the crank 316 constitute a crank-connecting rod mechanism. The crank 316, the second connecting rod 317, and the second hoop 31 constitute a crank-rocker mechanism. By extending or retracting the closing drive rod 314, the crank 316 can be driven to rotate, which in turn drives the second hoop 31 to rotate, thereby adjusting the included angle between the adjusting ring frame 2 and the interlocking ring frame 3. When the closing drive rod 314 is fully extended, the adjusting ring frame 2 and the interlocking ring frame 3 are fully engaged. The adjusting ring frame 2 and the interlocking ring frame 3 can be fixed at the non-hinged end using bolts. When the closing drive rod 314 is retracted, the adjusting ring frame 2 and the interlocking ring frame 3 are opened.

[0042] Furthermore, the telescopic assembly 4 includes telescopic drive rods 41 and telescopic locking components 42. There are several telescopic drive rods 41, each with a fixed end fixedly connected to a first hoop 21 or a second hoop 31, and a movable end fixedly connected to a toothed ring 23 or a mating ring 32. The extension or retraction of the telescopic drive rods 41 adjusts the distance between the first hoop 21 and the toothed ring 23, and between the second hoop 31 and the mating ring 32. There are several telescopic locking components 42, including locking sleeves 421 and telescopic beams 422. The telescopic beams 422 are fixed to the side of the toothed ring 23 or the mating ring 32, and the locking sleeves 421 are fixed to the first hoop 21. On the side of ring 21 or the second hoop ring 31, the locking sleeve 421 is sleeved on the outside of the telescopic beam 422. The telescopic beam 422 and the locking sleeve 421 are slidably connected. The end of the locking sleeve 421 is rotatably provided with a locking screw 423. Several locking holes are provided at intervals on the telescopic beam 422. The locking screw 423 is threadedly connected to the locking holes to lock the locking sleeve 421 and the telescopic beam 422. A tightening member 43 is installed radially on the locking sleeve 421 near the first hoop ring 21 or the second hoop ring 31. The tightening member 43 is a telescopic rod. The end of the tightening member 43 abuts or separates from the pipe 8 to fix the first hoop ring 21 to the pipe 8.

[0043] Furthermore, the toothed ring 23 has symmetrically provided limiting sliding grooves 232 on both sides, and the mating ring 32 has symmetrically provided mating sliding grooves 322 on both sides. When the adjusting ring frame 2 and the buckling ring frame 3 are fastened, the limiting sliding grooves 232 and the mating sliding grooves 322 are connected. The processing component 5 includes a frame 50, a fine-tuning plate 55 and a mounting plate 54. The outer side of the frame 50 is provided with a drive wheel 51, which extends into the track 231 or the mating track 321. Limiting blocks 52 are symmetrically fixed on both sides of the frame 50. The limiting blocks 52 are inserted into the corresponding limiting sliding grooves 232 or the mating sliding grooves 322 and slide with them. When the drive wheel 51 is started, the processing component 5 can move along the entire circumference of the device.

[0044] A fine-tuning plate 55 is disposed on the side of the frame 50 away from the drive wheel 51. Fine-tuning bosses 551 are symmetrically fixed at both ends of the fine-tuning plate 55. Fine-tuning grooves 57 are symmetrically formed at both ends of the frame 50. The fine-tuning bosses 551 are inserted into the fine-tuning grooves 57 and slide in cooperation with them. A transverse channel is formed in the middle of the side of the frame 50 away from the drive wheel 51. A fine-tuning screw 56 is disposed in the transverse channel. The two ends of the fine-tuning screw 56 are rotatably connected to the two ends of the transverse channel, respectively. A fine-tuning motor is connected to one end of the fine-tuning screw 56. The middle of the side of the fine-tuning plate 55 near the frame 50 is threadedly connected to the fine-tuning screw 56. A mounting plate 54 is disposed on the side of the frame 50 away from the drive wheel 51. On the side of the adjustment plate 55 away from the frame 50, an adjustment electric push rod 53 is installed between the mounting plate 54 and the fine adjustment plate 55 to adjust the radial distance between the mounting plate 54 and the pipe 8. The grinding assembly 6 and the welding assembly 7 are respectively installed at both ends of the mounting plate 54. A camera 541 is installed in the middle of the side of the mounting plate 54 away from the frame 50 to detect whether the distance from the mounting plate 54 to the end face of the two pipes 8 is equal. When the distance is not equal, the fine adjustment motor is controlled to move the fine adjustment plate 55 along the transverse channel until the distance from the camera 541 to the end face of the two pipes 8 is equal, that is, the camera 541 is located in the middle of the gap between the two pipes 8.

[0045] Furthermore, the grinding assembly 6 includes a servo motor 61, a grinding adjusting arm 63, a grinding telescopic arm 64, a grinding blade 65, and a suction cup 66. The servo motor 61 is mounted at the center of one end of the mounting plate 54 and has a rotation output function from 0 to 180 degrees. The output shaft of the servo motor 61 is connected to a grinding connecting arm 62. One end of the grinding adjusting arm 63 is hinged to the end of the grinding connecting arm 62, and the other end is equipped with the grinding blade 65. One end of the grinding telescopic arm 64 is hinged to the side of the grinding connecting arm 62, and the other end is hinged to the side of the grinding adjusting arm 63. The grinding telescopic arm 64 is electrically driven, and by extending and retracting the grinding telescopic arm 64, it can... The included angle between the grinding adjustment arm 63 and the grinding connecting arm 62 is adjusted, which is the grinding angle of the grinding blade 65. A grinding electric actuator is provided between the grinding blade 65 and the end of the grinding adjustment arm 63, which can adjust the distance between the grinding blade 65 and the bevel of the pipe 8. An L-shaped support rod 661 is fixedly installed on the grinding adjustment arm 63 near the grinding blade 65. The outside of the suction cup 66 is fixedly connected to the end of the support rod 661, which is used to pick up the metal debris generated when the grinding blade 65 grinds the pipe 8. A suction pump (not shown in the figure) and a waste slag box 662 are installed on the mounting plate 54. The waste slag box 662 is connected to the suction cup 66 through a hose 663 and is used to store metal debris.

[0046] When the servo motor 61's rotation output is 90 degrees, the hinge axis of the grinding connecting arm 62 is perpendicular to the end face of the pipe 8, the grinding blade 65 is located between the two pipes 8, the grinding telescopic arm 64 retracts, and the grinding adjusting arm 63 retracts, thereby retracting the grinding assembly 6. When the servo motor 61's rotation output is switched to 0 degrees, the hinge axis of the grinding connecting arm 62 is parallel to the end face of the pipe 8, the grinding blade 65 points to one of the pipes 8, the extension of the grinding telescopic arm 64 is adjusted to adjust the grinding angle of the grinding blade 65, the extension of the adjusting electric push rod 53 and the grinding electric push rod are adjusted until the grinding blade 65 contacts the end face of the pipe 8, the drive wheel 51 of the processing assembly 5 is started, and the grinding blade 65 performs beveling grinding on the pipe 8 during the circumferential movement of the processing assembly 5. After the beveling grinding of the pipe 8 is completed, the servo motor 61's rotation output is switched to 180 degrees, the processing assembly 5 is started, and the other pipe 8 can be beveling at the same grinding angle.

[0047] Furthermore, the welding assembly 7 includes a welding electric actuator 71, a welding adjusting arm 73, a welding telescopic arm 74, and a welding torch 75. The welding electric actuator 71 is installed at the middle of the other end of the mounting plate 54. The movable end of the welding electric actuator 71 is fixedly connected to a welding connecting arm 72. One end of the welding adjusting arm 73 is hinged to the end of the welding connecting arm 72, and the other end is equipped with a welding torch 75. One end of the welding telescopic arm 74 is hinged to the side of the welding connecting arm 72, and the other end is hinged to the side of the welding adjusting arm 73. The welding telescopic arm 74 is driven by electricity. By extending and retracting the welding telescopic arm 74, the included angle between the welding adjusting arm 73 and the welding connecting arm 72 can be adjusted.

[0048] When welding is not in progress, the welding telescopic arm 74 retracts and the welding adjusting arm 73 retracts, thereby retracting the welding assembly 7. When welding begins, the welding telescopic arm 74 extends, and the extension of the adjusting electric push rod 53, the welding telescopic arm 74, and the welding electric push rod 71 is adjusted until the welding torch 75 approaches the bevel. The drive wheel 51 of the processing assembly 5 is activated, and the welding torch 75 welds the two pipes 8 as it travels around the processing assembly 5.

[0049] Furthermore, the grinding component 6 and the welding component 7 are located on both sides of the fine-tuning camera 541, and the grinding component 6, the welding component 7, and the fine-tuning camera 541 are arranged on the center line of the mounting plate 54 perpendicular to the fine-tuning screw 56.

[0050] In this embodiment, during installation, the support assembly 1 is fixed to the ground outside the gap between the two pipes 8. The camera 541 is activated to detect whether the toothed ring 23 is located in the middle of the gap between the two pipes 8. The transverse motor is activated to move the toothed ring 23 to the middle of the gap between the two pipes 8. The telescopic assembly 4 is unlocked, the telescopic drive rod 41 extends, and the first hoop ring 21 and the second hoop ring 31 move away from the toothed ring 23 and the mating ring 32. The telescopic assembly 4 is locked, and the sliding motor and the transverse motor are activated to move the support wheel group 22 on the same side as the fixed pipe 8 to abut against the pipe 8. The movable pipe 8 is moved until it abuts against the support wheel group 22 on the same side. Connect; unlock the locking assembly 14, start the drive motor, and adjust the ring frame 2 to rotate around the axis of the pipe 8 until its non-hinged end moves from the bottom of the pipe 8 to the side of the pipe 8 away from the support assembly 1, locking the locking assembly 14; start the telescopic drive rod 41, and adjust the ring frame 2 and the locking ring frame 3 to fully engage and tighten; start the clamping member 43 until it abuts against the pipe 8, and the two pipes 8 are aligned; by driving the adjusting ring frame 2 to rotate around the axis of the pipe 8 through the support assembly 1, the positioning of the adjusting ring frame 2 relative to the fixed pipe 8 can be automatically completed, thereby facilitating alignment and clamping of the other pipe 8, reducing the error caused by manual installation of the alignment device.

[0051] In this embodiment, after installation, a grinding process is performed. The camera 541 is activated to detect whether it is located in the middle of the gap between the two pipes 8. The fine-tuning motor is activated to move the fine-tuning plate 55 until the center of the fine-tuning camera 541 is located in the middle of the gap between the two pipes 8. The rotation output of the servo motor 61 is switched to 0 degrees, the position and grinding angle of the grinding blade 65 are adjusted, and the processing component 5 and the suction pump are activated. The grinding component 6 performs beveling and metal debris removal on the pipe 8 in the circumferential direction. After the beveling of the pipe 8 is completed, the rotation output of the servo motor 61 is switched to 180 degrees, and the grinding component 6 performs beveling and metal debris removal on the other pipe 8 at the same grinding angle. During the grinding of the two pipes 8, there is no need to remove the device. Since the two pipes 8 are already aligned, the error in the beveling angle of the two pipes 8 is small, which helps to ensure the symmetry of the weld and improve the welding quality.

[0052] In this embodiment, after grinding, the welding process is performed. The servo motor 61 is switched to 90 degrees, the suction pump is turned off, the grinding telescopic arm 64 is retracted, and the grinding component 6 is retracted. The telescopic component 4 is unlocked, the telescopic drive rod 41 is retracted, the lateral movement motor is started, and the movable pipe 8 is moved to align with the fixed pipe 8. The toothed ring 23 is moved laterally to the joint position of the two pipes 8. The camera 541 and the fine-tuning motor are started again, and the fine-tuning plate 55 is moved until the center of the fine-tuning camera 541 is located at the joint position of the two pipes 8. The position of the welding torch 75 is adjusted, the processing component 5 is started, and the welding torch 75 welds the two pipes 8 circumferentially. During the welding process, there is still no need to disassemble the device, avoiding repeated disassembly and assembly of mechanical equipment during the beveling and welding of the pipes 8. While achieving the alignment of the pipes 8, the construction process is simplified, construction errors are avoided, and the construction efficiency of the grinding and welding of the pipes 8 is improved.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe beveling and welding apparatus for grinding and welding two pipes, characterized in that, The system includes a support assembly, an adjusting ring frame, a snap ring frame, a telescopic assembly, a processing assembly, a grinding assembly, and a welding assembly. The support assembly is fixed to the trench ground outside the pipes and is positioned near the gap between the two pipes. The adjusting ring frame is connected to one side of the support assembly via a gear and ring structure. One end of the adjusting ring frame is hinged to a snap ring frame. The adjusting ring frame and the snap ring frame can clamp the two pipes when engaged. A gear ring is provided in the middle of the adjusting ring frame, and a mating ring is provided in the middle of the snap ring frame. A track is provided in the middle of the inner side of the gear ring, and a mating rail is provided in the middle of the mating ring. The track and the mating rail can communicate with each other. The processing assembly moves in conjunction with the track or the mating rail. The grinding assembly and the welding assembly are provided on the processing assembly. Telescopic assemblies are provided on both sides of the gear ring and the mating ring. A tightening member is provided on the telescopic assembly along the radial direction outside the pipes.

2. The pipe beveling and welding device according to claim 1, characterized in that, The support assembly includes a base, a support rod, and a drive gear. The base is fixed to the ground, and the support rod is connected to the base through three sets of mutually perpendicular lead screw mechanisms. A drive gear is rotatably mounted on the side of the support rod near the pipe, and a gear ring meshes with the drive gear.

3. The pipe beveling and welding device according to claim 2, characterized in that, The upper and lower parts of the support rod are symmetrically provided with diagonal braces on the side near the pipe. The ends of the diagonal braces are fixedly connected to the limiting shells. Multiple spaced limiting teeth are symmetrically provided on both sides of the outer edge of the toothed ring. The toothed ring passes through the limiting shell, and the limiting shell and the toothed ring slide together. Locking components are symmetrically provided on both sides of the limiting shell, and the locking components engage or disengage with the limiting teeth.

4. The pipe beveling and welding device according to claim 1, characterized in that, The adjusting ring frame has first hoop rings symmetrically arranged on both sides. Multiple support wheel sets are spaced apart on the inner side of the first hoop rings. Each support wheel set includes a roller and a positioning telescopic rod. The positioning telescopic rod is installed radially, and the roller is rotatably connected to the movable end of the positioning telescopic rod.

5. The pipe beveling and welding device according to claim 4, characterized in that, The buckle frame has symmetrical second hoops on both sides, and the second hoops are hinged to the corresponding first hoops. The hinged ends of the first hoops and the second hoops are provided with a closing assembly, including a closing drive rod. The fixed end of the closing drive rod is installed on the outside of the first hoop, and the movable end of the closing drive rod drives the end of the second hoop to open or close through a crank-connecting rod mechanism.

6. The pipe beveling and welding device according to claim 1, characterized in that, The processing assembly includes a frame, a fine-tuning plate, and a mounting plate. The frame moves in conjunction with a track or mating rail. The fine-tuning plate is located inside the frame and is connected to the frame via a fine-tuning screw mechanism. The mounting plate is located on the side of the fine-tuning plate away from the frame. An adjusting electric push rod is installed between the mounting plate and the fine-tuning plate. Grinding and welding components are installed at both ends of the mounting plate. A camera is installed in the middle of the side of the mounting plate away from the frame.

7. The pipe beveling and welding device according to claim 6, characterized in that, The grinding assembly includes a servo motor, a grinding adjustment arm, a grinding telescopic arm, and a grinding blade. The servo motor is installed in the middle of one end of the mounting plate. The output shaft of the servo motor is connected to a grinding connecting arm. One end of the grinding adjustment arm is hinged to the end of the grinding connecting arm, and the other end is equipped with a grinding blade. One end of the grinding telescopic arm is hinged to the side of the grinding connecting arm, and the other end is hinged to the side of the grinding adjustment arm.

8. The pipe beveling and welding device according to claim 6, characterized in that, The welding assembly includes a welding electric actuator, a welding adjusting arm, a welding telescopic arm, and a welding torch. The welding electric actuator is installed in the middle of the other end of the mounting plate. A welding connecting arm is fixedly connected to the movable end of the welding electric actuator. One end of the welding adjusting arm is hinged to the end of the welding connecting arm, and the welding torch is installed at the other end. One end of the welding telescopic arm is hinged to the side of the welding connecting arm, and the other end is hinged to the side of the welding adjusting arm.

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