A heating pipe installation and welding device

Abstract

The present invention discloses a heating pipe installation welding device, which relates to the technical field of heating pipe installation, and includes a supporting mechanism and a concentric adjustment mechanism. The supporting mechanism includes two main supporting rings arranged opposite to each other on the left and right sides. The concentric adjustment mechanism includes a clamping assembly for clamping the adjacent ends of the two heating pipes, a driving assembly for synchronously driving the two clamping assemblies to perform synchronous clamping, and a locking assembly for locking and unlocking the position of the clamping assemblies after clamping. The two main supporting rings are jointly provided with a stabilizing mechanism and a welding mechanism. The present invention synchronizes the heating pipes by cooperating with the driving assembly and the clamping assembly, thereby ensuring the concentricity of the two heating pipes and avoiding the misalignment of the ends of the two heating pipes during welding; and ensures the connection between the two supporting rings by cooperating with the stabilizing mechanism and the welding mechanism, thereby avoiding the stabilizing mechanism from blocking the welding area, saving welding time, and improving welding efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating pipeline installation, in particular to a heating pipeline installation and welding device. BACKGROUND

[0002] The heating pipeline is a system for conveying heat medium (such as hot water or steam), which is mainly used for providing heating and hot water in residential, commercial buildings and industrial facilities. In the installation site, the heating pipeline needs to be welded, and the welding precision directly affects the sealing, stability and service life of the system. Before welding operation, material preparation, surface cleaning and alignment adjustment need to be prepared, and then appropriate welding method is selected according to the thickness of the pipe wall to carry out welding operation.

[0003] At present, in the process of heating pipeline installation and welding, two pipelines need to be butt jointed by hoisting equipment in the installation site. Since the heating pipeline is heavy, if only the middle part or the position a distance away from the end part is fixed, it is difficult to ensure the concentricity of the two pipelines under the action of gravity. Therefore, in order to ensure that the welding port has no error side, the alignment device needs to be installed at the butt joint of the pipeline, and the concentricity of the welding ports of the two pipelines is achieved by adjusting the alignment device. After the spot welding operation is carried out at the position not blocked by the alignment device, the alignment device is removed, and the fillet welding and arc welding operations are carried out by the ring welding method. The welding operation cannot be completed at one time, and the spot welding position is easily damaged when the alignment device is removed. The removal of the alignment device also increases the operation time and further reduces the welding efficiency.

[0004] In addition, the alignment device has limited fixing range and fixing strength for the ports of the two heat exchange pipelines, and the concentricity of the ports of the two heat exchange pipelines is affected. Since the operation space is limited in the installation site, the ring welding equipment is often installed at the end of one of the heat exchange pipelines, which causes uneven stress of the two heat exchange pipelines, and further causes the stability of the concentricity of the two heat exchange pipelines to be improved, which affects the welding precision.

[0005] Therefore, in order to solve the above problems, the present application provides a heating pipeline installation and welding device which can accurately butt joint the welding ports of two heating pipelines in cooperation with hoisting equipment in the installation site, and can complete high-precision welding operation at one time and occupy less space. SUMMARY

[0006] The present application aims to solve the problems in the prior art and provides a heating pipeline installation and welding device.

[0007] In order to achieve the above object, the present application adopts the following technical scheme: A heating pipeline installation and welding device comprises a supporting mechanism and a concentric adjusting mechanism, the supporting mechanism comprises two main supporting rings oppositely arranged left and right, and annular grooves one and two are formed in the outer ring wall of the main supporting ring, a plurality of radial sliding grooves are formed in the inner ring wall and the outer ring wall of the main supporting ring and are distributed in the circumferential direction, and the outer wall of the side of the two main supporting rings away from each other is provided with an axial sliding groove corresponding to the radial sliding groove, and the distance between the annular grooves one on the two main supporting rings is greater than the distance between the annular grooves two.

[0008] The concentric adjusting mechanism comprises a clamping assembly arranged on the main supporting ring for clamping the end portions of the two heating pipelines close to each other, a driving assembly arranged on the main supporting ring for synchronously driving the two clamping assemblies to synchronously clamp, and a locking assembly arranged on the main supporting ring for locking and unlocking the position of the clamping assembly after clamping.

[0009] The two main supporting rings are commonly provided with a stabilizing mechanism and a welding mechanism, the stabilizing mechanism comprises a plurality of main fixed seats fixedly connected to the left side wall of the right main supporting ring in the circumferential direction, a connecting block rotatably connected to the main fixed seat through a torsion spring rod, and a stable connecting assembly on the right side wall of the left main supporting ring for connecting the two main supporting rings and maintaining the concentricity of the two heating pipelines, and the welding mechanism comprises a walking support stably movable on the annular groove two, a welding head arranged on the walking support for welding the ports of the two heating pipelines close to each other, and an avoiding assembly for avoiding the welding position in cooperation with the stable connecting assembly.

[0010] In the above-mentioned heating pipeline installation and welding device, the driving assembly comprises a rotating ring, the rotating ring is slidably connected to the annular groove one, the outer ring wall of the rotating ring is fixedly connected with an arc-shaped rack, and the main supporting ring is rotatably installed with a gear engaged with the arc-shaped rack through a plate, and the outer wall of the side of the two gears close to each other is coaxially fixedly connected with a clamping connecting column and a clamping connecting cylinder, respectively.

[0011] In the above-mentioned heating pipeline installation and welding device, the end of the clamping connecting column close to the clamping connecting cylinder is fixedly connected with a rectangular column, and the outer wall of the side of the clamping connecting cylinder close to the clamping connecting column is provided with a rectangular groove matched with the rectangular column of the clamping connecting column.

[0012] In the above-mentioned heating pipeline installation and welding device, the clamping assembly comprises a wedge block one, and a plurality of wedge blocks one are fixedly arranged in the annular groove one on the inner ring wall of the rotating ring in the circumferential direction, the outer wall of the side of the wedge block one close to the heating pipeline is inclined, the radial sliding groove is slidably connected with a clamping piece through a spring one, and the wedge block one and the clamping piece are correspondingly arranged.

[0013] In the above-mentioned heating pipe installation and welding device, the clamping member is composed of a wedge-shaped member slidably connected to the radial slide groove and an arc-shaped member fixed on the side of the wedge-shaped member close to the heating pipe, and the outer wall of the wedge-shaped member of the clamping member close to the wedge block is in a corresponding inclined shape, and the outer walls of the sides of the clamping members on the two main support rings that are away from each other are fixedly connected with locking racks, and the side of the locking rack away from the clamping member is composed of an inclined surface and a horizontal surface.

[0014] In the above-mentioned heating pipe installation and welding device, the locking assembly includes an electric push rod, and multiple electric push rods are installed along the circumferential direction on the outer walls of the two main support rings that are away from each other, and the output ends of the multiple electric push rods are fixedly connected to a locking ring. The locking ring consists of a circular ring part fixedly connected to the electric push rod and an arc-shaped protrusion fixed on the side wall of the circular ring part close to the main support ring and adapted to the axial slide groove.

[0015] In the above-mentioned heating pipe installation and welding device, the side wall of the arc-shaped protrusion of the locking ring is slidably connected to a slide seat arranged in the main support ring through spring 2, and the side of the slide seat close to the locking rack is fixedly connected to a locking member engaged with it, and the side of the locking member away from the slide seat is composed of an inclined surface and a horizontal surface.

[0016] In the above-mentioned heating pipe installation and welding device, the stabilizing mechanism includes a plurality of main fixing seats fixedly connected in the circumferential direction on the left side wall of the main support ring on the right side, a connecting block on the main fixing seat that is rotatably connected through a torsion spring rod, and a stabilizing connection assembly arranged on the right side wall of the main support ring on the left side for connecting the two main support rings and maintaining the concentricity of the two heating pipes.

[0017] In the above-mentioned heating pipe installation welding device, the stable connection assembly includes an auxiliary fixing seat, and the right side wall of the left main support ring is fixedly connected to an auxiliary fixing seat with a U-shaped structure corresponding to the main fixing seat and opening to the right, and a traction seat is connected to a transverse section of the auxiliary fixing seat through spring three, and two sliding limit plates that are slidably connected to the auxiliary fixing seat are fixedly connected to the outer wall of the traction seat close to the auxiliary fixing seat, and wedge block two is fixedly connected to the inner wall of the traction seat.

[0018] In the above-mentioned heating pipe installation welding device, a walking bracket is slidably connected to the two annular grooves, and a welding head that can move up and down and left and right is slidably connected to the walking bracket through an electric slider. The avoidance component includes a baffle bar fixedly connected to the walking bracket and arranged on the front side of the welding head, and an arc-shaped pushing bar fixedly connected to the walking bracket and arranged on the left side of the welding head. A groove for the arc-shaped pushing bar to pass through is provided on the traction seat.

[0019] Compared with the prior art, the present application has the advantages that: 1. Through the cooperation of the driving assembly and the clamping assembly, the two heat supply pipes are synchronously clamped during hoisting, the concentricity of the two heat supply pipes is ensured, and the end of the two heat supply pipes is prevented from being misaligned during welding; the wedge of the clamping piece drives the arc-shaped piece of the clamping piece to clamp the heat supply pipe from multiple directions, and the clamping piece can be quickly adjusted, so that the device can clamp heat supply pipes of different diameters within a certain range, and the practicability of the device is increased.

[0020] 2. Through the cooperation of the clamping assembly and the locking assembly, the clamping state of the clamping piece and the two heat supply pipes is locked, the stability after clamping is ensured, the horizontal plane of the sliding seat and the horizontal plane of the locking piece cooperate to prevent the clamping piece from moving in the opposite direction of the pushing direction, and when unlocking is needed after welding, the locking piece releases the locking of the locking rack through the driving of the output end of the electric push rod, so that the clamping piece quickly releases the clamping of the heat supply pipe.

[0021] 3. Through the cooperation of the stabilizing mechanism and the welding mechanism, the connection between the two main support rings is ensured, the stabilizing mechanism is prevented from blocking the welding area, the welding time is saved, the welding efficiency is improved, the welding mechanism is located between the two heat supply pipes, the overall space occupied by the device is reduced, the stress of the two pipes is balanced, and the stable concentric state of the two pipes is maintained; through the cooperation of the arc-shaped pushing strip and the wedge, the welding head is removed from the welding range, the welding can be completed at one time, the aligning device is not needed to be used for alignment, and after the spot welding operation is performed at the position not blocked by the aligning device, the aligning device is removed for the ring welding operation. BRIEF DESCRIPTION OF DRAWINGS

[0022] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0023] Figure 1 It is a schematic view of the overall structure.

[0024] Figure 2 It is a schematic view of the change before and after the heat supply pipe installation and welding.

[0025] Figure 3 It is a schematic view of the structure of the driving assembly.

[0026] Figure 4 It is Figure 3 It is a schematic view of the structure of the driving assembly.

[0027] Figure 5 It is a schematic view of the change before and after the heat supply pipe installation and welding.

[0028] Figure 6 It is a schematic view of the structure of the driving assembly.

[0029] Figure 7 It is a structural schematic diagram of the locking rack and the locking member when the clamping member moves downward.

[0030] Figure 8 It is a structural diagram of the welding mechanism.

[0031] Figure 9 It is a schematic diagram of the change when the arc-shaped pushing bar changes from a state of being separated from the wedge block 2 to a state where the arc-shaped pushing bar pushes the wedge block 2.

[0032] Figure 10 It is a partial structural diagram of the stabilizing mechanism and the welding mechanism.

[0033] In the figure: 1. Support mechanism; 11. Main support ring; 12. Annular groove 1; 13. Radial slide groove; 14. Axial slide groove; 15. Annular groove 2; 2. Concentric adjustment mechanism; 21. Drive assembly; 211. Rotating ring; 212. Arc rack; 213. Gear; 214. Snap-fit ​​connection column; 215. Snap-fit ​​connection cylinder; 22. Clamping assembly; 221. Wedge block 1; 222. Clamping member; 223. Locking rack ; 23. Locking assembly; 231. Locking ring; 232. Sliding seat; 233. Locking piece; 234. Electric push rod; 3. Stabilizing mechanism; 31. Main fixed seat; 32. Connecting block; 33. Stable connecting assembly; 331. Auxiliary fixed seat; 332. Traction seat; 333. Sliding limit plate; 334. Wedge block 2; 4. Welding mechanism; 41. Traveling bracket; 42. Welding head; 43. Block bar; 44. Arc-shaped pushing bar. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Reference Figure 1 、 Figure 2 and Figure 6 A heating pipe installation and welding device includes a support mechanism 1 and a concentric adjustment mechanism 2. The support mechanism 1 includes two main support rings 11 arranged opposite to each other on the left and right. An annular groove 12 and an annular groove 2 15 are provided on the outer ring wall of the main support ring 11. A plurality of radial grooves 13 distributed circumferentially are provided between the inner ring wall and the outer ring wall of the main support ring 11. The outer walls of the two main support rings 11 on the side away from each other are both provided with axial grooves 14 corresponding to the radial grooves 13. The distance between the annular grooves 12 on the two main support rings 11 is greater than the distance between the annular grooves 2 15; a stabilizing mechanism 3 and a welding mechanism 4 are commonly provided on the two main support rings 11.

[0036] Two main support rings 11 are respectively sleeved to the outer walls of the ports of the two heat supply pipes to be welded, the two heat supply pipes are lifted and moved by lifting equipment until the ports of the two heat supply pipes to be welded are close to each other, the stable mechanism 3 is connected between the two main support rings 11, the approaching end portions of the two heat supply pipes are stably clamped by the concentric adjusting mechanism 2, the end portions of the two heat supply pipes to be welded are prevented from being decentered, welding work is performed by the welding mechanism 4, and the stable mechanism 3 avoids the welding mechanism 4 during the welding process of the welding mechanism 4, so that the welding of the welding mechanism 4 is not limited by the stable mechanism 3.

[0037] With reference to Figure 1 , the concentric adjusting mechanism 2 comprises clamping assemblies 22 provided on the main support rings 11 for clamping the approaching end portions of the two heat supply pipes, drive assemblies 21 provided on the main support rings 11 for synchronously driving the two clamping assemblies 22 to synchronously clamp, and locking assemblies 23 provided on the main support rings 11 for locking and unlocking the positions of the clamping assemblies 22 after clamping.

[0038] With reference to Figure 1 and Figure 3 , the drive assembly 21 comprises a rotating ring 211, the rotating ring 211 is slidingly connected to the annular groove 12, the outer ring wall of the rotating ring 211 is fixedly connected with an arc-shaped rack 212, the main support ring 11 is rotatably installed with a gear 213 engaged with the arc-shaped rack 212 through a plate, and the outer walls of the two gears 213 on the side close to each other are coaxially fixedly connected with a clamping connecting column 214 and a clamping connecting cylinder 215 respectively; the end of the clamping connecting column 214 close to the clamping connecting cylinder 215 is fixedly connected with a rectangular column, and the outer wall of the clamping connecting cylinder 215 close to the clamping connecting column 214 is provided with a rectangular groove matched with the rectangular column of the clamping connecting column 214.

[0039] With reference to Figure 1 , Figure 3 , Figure 5 and Figure 6The clamping assembly 22 comprises a plurality of wedge blocks 221 fixed on the inner wall of the rotating ring 211 in the circumferential direction and arranged in the annular groove 12. The side wall of the wedge block 221 close to the heating pipeline is inclined. The clamping piece 222 is slidably connected to the radial sliding groove 13 by a spring (not shown in the figure), and the wedge block 221 and the clamping piece 222 are correspondingly arranged. The clamping piece 222 is composed of a wedge-shaped piece slidably connected to the radial sliding groove 13 and an arc-shaped piece fixed to the side wall of the wedge-shaped piece close to the heating pipeline. The side wall of the wedge-shaped piece of the clamping piece 222 close to the wedge block 221 is also inclined. The locking rack 223 is fixedly connected to the side wall of the clamping piece 222 away from each other on the two main support rings 11. The side wall of the locking rack 223 away from the clamping piece 222 is composed of an inclined surface and a horizontal surface.

[0040] With reference to Figure 1 , Figure 6 and Figure 7 , the locking assembly 23 comprises a plurality of electric push rods 234 installed on the side wall of the two main support rings 11 away from each other in the circumferential direction. The output ends of the plurality of electric push rods 234 are fixedly connected to the locking ring 231. The locking ring 231 is composed of a circular ring fixedly connected to the electric push rod 234 and an arc-shaped protrusion fixed to the side wall of the circular ring close to the main support ring 11 and matched with the axial sliding groove 14. The side wall of the arc-shaped protrusion of the locking ring 231 is slidably connected to the sliding seat 232 arranged in the main support ring 11 by a spring (not shown in the figure). The side of the sliding seat 232 close to the locking rack 223 is fixedly connected to the locking piece 233 matched therewith. The side of the locking piece 233 away from the sliding seat 232 is composed of an inclined surface and a horizontal surface.

[0041] With reference to Figure 1 , Figure 3 and Figure 4 , the stabilizing mechanism 3 comprises a plurality of main fixed seats 31 fixedly connected to the right side wall of the right main support ring 11 in the circumferential direction, a connecting block 32 rotatably connected to the main fixed seat 31 by a torsion spring rod, and a stabilizing connecting assembly 33 arranged on the right side wall of the left main support ring 11 and used for connecting the two main support rings 11 and maintaining the concentricity of the two heating pipelines.

[0042] With reference to Figure 3 , Figure 4 and Figure 9The stable connecting assembly 33 comprises an auxiliary fixing seat 331. The right side wall of the left main supporting ring 11 is fixedly connected with the auxiliary fixing seat 331 which has a U-shaped structure and is open to the right and corresponds to the main fixing seat 31. One transverse section of the auxiliary fixing seat 331 is connected with a traction seat 332 through a spring three (not shown in the figure). The traction seat 332 is fixedly connected with two sliding limiting plates 333 which are in sliding connection with the auxiliary fixing seat 331 on the side outer wall close to the auxiliary fixing seat 331. The inner wall of the traction seat 332 is fixedly connected with a wedge block two 334.

[0043] When the hoisting equipment drives the two heat supply pipelines and the main supporting ring 11 to approach each other, the connecting block 32 approaches the stable connecting assembly 33, the connecting block 32 is clamped into the range surrounded by the combination of the corresponding auxiliary fixing seat 331 and the sliding limiting plate 333, and the connection between the connecting block 32 and the auxiliary fixing seat 331 and the sliding limiting plate 333 realizes the connection between the two main supporting rings 11, thereby facilitating the subsequent maintenance of the concentricity of the two heat supply pipeline end portions during welding.

[0044] Meanwhile, the rectangular groove end portion is chamfered, the rectangular column of the clamping connection column 214 and the rectangular groove of the clamping connection cylinder 215 are clamped and connected, the shaft end of the gear 213 provided with the clamping connection cylinder 215 is driven by an external motor, the rotation of the two gears 213 drives the rotation of the arc-shaped rack 212 and the rotating ring 211, the rotating ring 211 drives the wedge block one 221 to slide on the annular groove one 12, approaches the wedge-shaped part of the corresponding clamping part 222, and until the wedge-shaped part of the clamping part 222 is moved, the arc-shaped part of the clamping part 222 gradually approaches the outer wall of the heat supply pipeline, and the heat supply pipeline is clamped from multiple directions. Since the two rotating rings 211 synchronously move the same distance, the clamping part 222 on the two main supporting rings 11 pushes the heat supply pipeline to change the position of the center by the same distance, thereby avoiding the occurrence of misalignment of the two heat supply pipeline end portions during welding. Moreover, the clamping part 222 which can be quickly adjusted enables the device to clamp heat supply pipelines of different diameters within a certain range, thereby increasing the practicability of the device.

[0045] When the clamping part 222 moves, the locking rack 223 on the clamping part 222 moves, the inclined surface of the locking part 233 which is in mesh with the locking rack 223 is pushed, the spring two is compressed, the sliding seat 232 slides to approach the locking ring 231, the spring two is rebounded after compression, so that the sliding seat 232 is attached to the locking part 233, the horizontal surface of the sliding seat 232 cooperates with the horizontal surface of the locking part 233, thereby preventing the clamping part 222 from moving in the opposite direction of the pushing direction. The position of the clamping part 222 after movement is locked, and the stability after clamping is ensured.

[0046] When unlocking is required after welding is completed, the output end of the electric push rod 234 drives the locking member 233 to move away from the main support ring 11, and the locking member 233 releases the lock on the locking rack 223, so that the clamping member 222 releases the clamping of the heating pipe.

[0047] Reference Figure 1 、 Figure 8 to Figure 10 The welding mechanism 4 includes a stably movable traveling bracket 41 arranged on the annular groove 15, a welding head 42 arranged on the traveling bracket 41 for welding the ports of the two heating pipes that are close to each other, and an avoidance component for cooperating with the stable connection component 33 to avoid the welding position; the two annular grooves 15 are jointly slidably connected with the traveling bracket 41, and the welding head 42 that can move up and down and left and right is slidably connected to the traveling bracket 41 through an electric slider. The avoidance component includes a blocking bar 43 fixedly connected to the traveling bracket 41 and arranged on the front side of the welding head 42, and an arc-shaped pushing bar 44 fixedly connected to the traveling bracket 41 and arranged on the left side of the welding head 42. A groove for the arc-shaped pushing bar 44 to pass through is provided on the traction seat 332.

[0048] The walking bracket 41 can be driven by an electric slider, and the walking bracket 41 is divided into two parts, the left and right parts are detachably connected to avoid affecting the separation of the two main support rings 11. When the welding operation is performed by the welding mechanism 4, the walking bracket 41 drives the welding head 42 to slide on the annular groove 2 15, and moves smoothly along the circumferential direction of the main support ring 11, driving the welding head 42 to complete the annular welding task. The welding head 42 can move up and down and left and right on the walking bracket 41 to weld the port connections of the two heating pipes to be welded.

[0049] When the traveling bracket 41 moves, the traveling bracket 41 drives the blocking bar 43 and the arc-shaped pushing bar 44 to move close to the stabilizing mechanism 3 installed on the main support ring 11. One end of the arc-shaped pushing bar 44 first enters the interior of the traction seat 332, and the arc-shaped pushing bar 44 approaches the wedge block 2 334, and pushes the wedge block 2 334 to slide along the outer wall of one side of the arc-shaped pushing bar 44 close to the traveling bracket 41. The wedge block 2 334 is pushed to drive the traction seat 332 and the sliding limit plate 333 to move away from the auxiliary fixing seat 331, and the spring 3 is stretched.

[0050] When the sliding limiting plate 333 moves to not limit the active range of the connecting block 32, the blocking strip 43 pushes the connecting block 32 and the torsion spring rod connected with the connecting block 32 to rotate, so as to remove the obstacle of the welding head 42 in the welding range, and when the welding head 42 completes welding on the area limited by the stabilizing mechanism 3, the blocking strip 43 no longer blocks the connecting block 32, the torsion spring rod drives the connecting block 32 to reset, then the other end of the arc-shaped pushing strip 44 slides away from the outer wall of the wedge block two 334 and the inside of the traction seat 332, the spring three returns to drive the sliding limiting plate 333 to reset, and the connecting block 32 and the stabilizing connecting assembly 33 restore the connection state, so as to avoid that the stabilizing mechanism 3 blocks the welding area, and when welding, it is not necessary to use the aligning device to align first, and after spot welding is performed on the position not blocked by the aligning device, the aligning device is removed to perform root welding and arc welding, so that the welding can be completed at one time, welding time is saved, and welding efficiency is improved.

[0051] With reference to Figure 1 to Figure 10 The specific operation steps of the heat supply pipeline installation and welding device are as follows: the two main support rings 11 are respectively sleeved to the outer walls of the ports of the two heat supply pipelines to be welded, the two main support rings 11 are moved close to each other through hoisting equipment, the connecting block 32 is clamped into the range surrounded by the corresponding auxiliary fixing seat 331 and the sliding limiting plate 333, and the two main support rings 11 are connected and concentrically distributed.

[0052] The two gears 213 are driven to rotate, the arc-shaped part of the clamping part 222 gradually approaches the outer wall of the heat supply pipeline, and the heat supply pipeline is clamped from multiple directions, the clamping part 222 on the two main support rings 11 pushes the central position of the heat supply pipeline to change the same, and the two heat supply pipelines are concentrically distributed after being clamped; the locking rack 223 cooperates with the locking part 233 to lock the position of the clamping part 222 after movement, so as to ensure the stability after clamping.

[0053] The walking support 41 drives the welding head 42 to complete the ring welding task, drives the arc-shaped pushing strip 44 to cooperate with the wedge block two 334, and avoids that the stabilizing mechanism 3 blocks the welding area.

[0054] The above merely describes the preferred specific embodiments of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A heating pipe installation welding device, comprising a support mechanism and a concentric adjustment mechanism, characterized in that: The support mechanism includes two main support rings arranged opposite to each other on the left and right. The outer ring wall of the main support ring is provided with an annular groove 1 and an annular groove 2. A plurality of radial sliding grooves distributed circumferentially are provided between the inner ring wall and the outer ring wall of the main support ring. Axial sliding grooves corresponding to the radial sliding grooves are provided on the side away from each other of the two main support rings. The spacing between the annular grooves 1 is greater than the spacing between the annular grooves 2. The concentric adjustment mechanism is provided on the main support ring, and includes a clamping assembly for clamping the two heating pipes at their adjacent ends, a driving assembly for driving the clamping assembly for synchronous clamping, and a locking assembly for locking and unlocking the clamping assembly; The two main support rings are jointly provided with a stabilizing mechanism and a welding mechanism; The welding mechanism includes a traveling bracket arranged on the annular groove 2, a welding head arranged on the traveling bracket, and an avoidance component for cooperating with the stable connection component to avoid the welding position; The stabilizing mechanism includes a plurality of main fixing seats fixedly connected along the circumferential direction on the left side wall of the main support ring on the right side, a connecting block rotatably connected to the main fixing seats via a torsion spring rod, and a stabilizing connection assembly provided on the right side wall of the main support ring on the left side for connecting the two main support rings and maintaining the concentricity of the two heating pipes; The stable connection assembly includes an auxiliary fixing seat, and an auxiliary fixing seat with a U-shaped structure corresponding to the main fixing seat and opening to the right is fixedly connected to the right side wall of the left main support ring, and a traction seat is connected to a lateral section of the auxiliary fixing seat through a spring three, and two sliding limit plates slidably connected to the auxiliary fixing seat are fixedly connected to the outer wall of the traction seat on one side close to the auxiliary fixing seat, and a wedge block two is fixedly connected to the inner wall of the traction seat; The two annular grooves are slidably connected to a walking bracket, and a welding head that can move up and down and left and right is slidably connected to the walking bracket through an electric slider. The avoidance component includes a baffle bar fixedly connected to the walking bracket and arranged on the front side of the welding head, and an arc-shaped pushing bar fixedly connected to the walking bracket and arranged on the left side of the welding head. A groove for the arc-shaped pushing bar to pass through is provided on the traction seat.

2. A heating pipe installation welding device according to claim 1, characterized in that: The driving assembly includes a rotating ring, which is slidably connected to a rotating ring on an annular groove, and an arc-shaped rack is fixedly connected to the outer ring wall of the rotating ring. A gear meshing with the arc-shaped rack is rotatably installed on the main support ring through a plate, and the outer walls of the two gears on one side close to each other are coaxially fixedly connected with a snap-fit ​​connecting column and a snap-fit ​​connecting cylinder.

3. A heating pipe installation welding device according to claim 2, characterized in that: One end of the snap-fit ​​connection column close to the snap-fit ​​connection tube is fixedly connected with a rectangular column, and an outer wall of the snap-fit ​​connection tube close to the snap-fit ​​connection column is provided with a rectangular groove adapted to the rectangular column of the snap-fit ​​connection column.

4. A heating pipe installation welding device according to claim 2, characterized in that: The clamping assembly includes a wedge block 1, and a plurality of wedge blocks 1 arranged in an annular groove 1 are fixed on the inner ring wall of the rotating ring along the circumferential direction. The outer wall of the wedge block 1 close to the heating pipe is inclined. The radial slide groove is slidably connected with a clamping piece through a spring 1, and the wedge block 1 is correspondingly arranged to the clamping piece.

5. A heating pipe installation welding device according to claim 4, characterized in that: The clamping member is composed of a wedge-shaped member slidably connected to the radial slide groove and an arc-shaped member fixed on the side of the wedge-shaped member close to the heating pipe, and the outer wall of the wedge-shaped member of the clamping member close to the wedge block is adaptively inclined. The outer walls of the clamping members on the two main support rings on the sides away from each other are fixedly connected with locking racks, and the side of the locking rack away from the clamping member is composed of an inclined surface and a horizontal surface.

6. A heating pipe installation welding device according to claim 5, characterized in that: The locking assembly includes an electric push rod, and multiple electric push rods are installed along the circumferential direction on the outer walls of the two main support rings that are away from each other, and the output ends of the multiple electric push rods are fixedly connected to a locking ring. The locking ring consists of a circular ring member fixedly connected to the electric push rod and an arc-shaped protrusion fixed on the side wall of the circular ring member close to the main support ring and adapted to the axial slide groove.

7. A heating pipe installation welding device according to claim 6, characterized in that: The side wall of the arc-shaped protrusion of the locking ring is slidably connected to a slide seat arranged in the main support ring through spring 2, and the side of the slide seat close to the locking rack is fixedly connected to a locking piece engaged with it, and the side of the locking piece away from the slide seat is composed of an inclined surface and a horizontal surface.

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