A pipeline welding device for building construction

Abstract

The present invention relates to the field of welding, and specifically to a pipeline welding device for construction, including a protective component, which is sleeved on the outside of the pipeline and used to protect the device, including a fixed protective shell and a movable protective shell. The present invention facilitates the adjustment of the weld by the cooperation of the rotating component and the protective component, facilitates the position adjustment by the cooperation of the clamping component and the walking component, and can set the groove at multiple angles, is convenient to install and disassemble, has high efficiency and high safety, so as to solve the problems in the prior art that the construction site is relatively complex and the welding is difficult, and the existing automatic welding machine needs to grind the weld groove in advance and adjust the distance of the weld in advance. For large-diameter pipelines, the adjustment is cumbersome, and manual grinding is prone to inconsistent grinding of the groove, and the automatic grinding of the groove requires additional installation of components, which is inefficient. When continuous welding is required, the installation and disassembly are relatively cumbersome, and the groove angle is not easy to adjust.

Description

Technical Field

[0001] The invention relates to the field of welding, and in particular to a pipeline welding device for building construction. Background Art

[0002] Pipes are widely used, mainly in industrial installations such as water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, water conservancy projects, etc. They are an indispensable part of construction. During construction, it is often necessary to weld pipes. There are many welding methods, and arc welding is currently the most commonly used welding method in construction.

[0003] When welding a pipe, it is necessary to energize one end of one of the pipes and the welding rod, manually use a clamp to clamp the welding rod, make the welding rod face the weld of the pipe, rotate the welding rod around the weld for one circle, and weld the pipe. Because workers need to constantly adjust their posture during welding and the construction site is relatively complex, it is difficult for workers to maintain the correct angle for welding, and welding errors may result in failure to weld, affecting the welding effect. The existing automatic welding machine needs to grind the weld groove in advance and adjust the weld distance in advance. For large-diameter pipes, the adjustment is cumbersome, and manual grinding is prone to inconsistent grinding of the groove. The automatic grinding of the groove requires additional installation of components, which is inefficient. When continuous welding is required, installation and disassembly are cumbersome, and the groove angle is not easy to adjust.

[0004] Therefore, it is necessary to invent a kind of pipeline welding device for building construction to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a pipeline welding device for construction. Through the cooperation of a rotating component and a protective component, the weld can be adjusted easily. Through the cooperation of a clamping component and a walking component, the position can be adjusted easily. The groove can be set at multiple angles. The device is convenient to install and disassemble, has high efficiency and high safety. The device solves the problems in the prior art that the construction site is relatively complex and the welding is difficult. The existing automatic welding machine needs to grind the weld groove in advance and adjust the weld distance in advance. For large-diameter pipes, the adjustment is cumbersome, and manual grinding is prone to inconsistent grinding of the groove. The automatic grinding of the groove requires additional installation of components, which is inefficient. When continuous welding is required, the installation and disassembly are cumbersome, and the groove angle is not easy to adjust.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a pipeline welding device for construction, comprising

[0007] A protection assembly is sleeved on the outside of the pipeline and is used to protect the device, and includes a fixed protection shell and a movable protection shell, wherein the fixed protection shell and the movable protection shell are symmetrically arranged and slide relative to each other;

[0008] A rotating assembly, wherein the rotating assembly comprises two symmetrical arc-shaped rotating rings, the two arc-shaped rotating rings are respectively located on the inner sides of the fixed protective shell and the movable protective shell and are arranged to slide against each other, the rotating assembly is rotationally connected to both the fixed protective shell and the movable protective shell, wherein a grinding assembly, a welding assembly and a detection assembly are arranged inside the arc-shaped rotating ring close to one side of the fixed protective shell;

[0009] The grinding assembly includes a first electric push rod installed on the inner side of one end of the arc-shaped rotating ring, a grinding motor is installed on the output end of the first electric push rod, a grinding rotating rod is installed on the output end of the grinding motor, an articulated rod is hinged on the outer side of the grinding rotating rod, a grinding block is hinged on the end of the articulated rod, an articulated block is hinged on the end of the grinding block, a nut is rotatably connected to the outer end of the articulated block, the nut is threadedly connected to the grinding rotating rod, and a screw is threadedly connected to the outer side of the nut;

[0010] The welding assembly includes a mounting block mounted on the inner side of the arc-shaped rotating ring, the mounting block is arranged opposite to the first electric push rod, a rotating motor is mounted on the top of the mounting block, a rotating seat rotatably connected to the mounting block is mounted on the output end of the rotating motor, a second electric push rod is mounted inside the rotating seat, a welding rotary head motor is mounted on the output end of the second electric push rod, a mounting assembly is mounted on the end of the welding rotary head motor, and a welding head is arranged on the end of the mounting assembly;

[0011] A clamping assembly, wherein two clamping assemblies are provided and are respectively installed on the inner sides of the fixed protective shell and the movable protective shell, and the clamping assemblies are used to clamp and align the pipeline;

[0012] The walking assembly is arranged on the side of the clamping assembly, and the clamping assembly is used in conjunction with the walking assembly to enable the device to walk on the pipeline.

[0013] As a preferred solution of the present invention, the bottoms of both ends of the fixed protective shell and the movable protective shell are fixedly connected with support blocks, the internal threads of the support blocks are connected with threaded rods, the internal sliding connection of the support blocks is connected with support blocks, the bottom of the support blocks is fixedly connected with a limiting rod, the limiting rod is rotatably connected with the threaded rod, and an electric push rod is arranged between the two support blocks on the same side of the displacement.

[0014] As a preferred solution of the present invention, the tops of the fixed protective shell and the movable protective shell are both provided with lifting ears, the sides of the lifting ears are provided with observation windows, the inner sides of the fixed protective shell and the movable protective shell are both fixedly connected with sliding rails, and the fixed protective shell and the movable protective shell are arranged in a downwardly opening ring shape, and the opening angle is set to 140°.

[0015] As a preferred solution of the present invention, a gear ring is fixedly connected to the outer side of the arc-shaped rotating ring, three driving motors are installed on the outer side of the fixed protective shell, and a driving rotating rod is provided at the output end of the driving motor. The driving rotating rod passes through the fixed protective shell and extends to the interior of the arc-shaped rotating ring, and two driving gears are fixedly connected to the outer side of the driving rotating rod, and the driving gears are respectively meshed with the gear rings on the outer sides of the two arc-shaped rotating rings, wherein the driving rotating rod is composed of two sliding rods that can slide against each other.

[0016] As a preferred solution of the present invention, a sliding ring is provided inside the arc-shaped swivel, and the sliding ring cooperates with the sliding rail. The arc-shaped swivel is configured as an open ring, and the opening angle is set to 140°, wherein the arc-shaped swivel cooperates with the fixed protective shell and the movable protective shell, and a cavity is provided inside the arc-shaped swivel, and the grinding assembly, welding assembly and detection assembly are all located inside the cavity, wherein the detection assembly is arranged in the inner middle part of the arc-shaped swivel.

[0017] As a preferred solution of the present invention, the clamping assembly includes a retaining ring, three retaining plates are fixedly connected to the inner side of the retaining ring, retaining grooves are provided inside the retaining plates, arc-shaped teeth are fixedly connected to the outer side of the retaining ring, adjustment motors are installed on the outer sides of the sliding rail and the movable protective shell, and the output end of the adjustment motor is fixedly connected to an adjustment gear, which is meshed with the arc-shaped teeth.

[0018] As a preferred solution of the present invention, the side of the clamp is fixedly connected to a limit strip, the outer side of the clamp is sleeved with a telescopic column, and the interiors of the fixed protective shell and the movable protective shell are provided with a movable groove adapted to the clamp and an empty groove adapted to the telescopic column.

[0019] As a preferred solution of the present invention, a clamping piece is fixedly connected to the bottom of the telescopic column, a square groove adapted to the clamping plate is opened inside the telescopic column, a clamping block passing through the clamping slot is fixedly connected inside the square groove, the clamping piece is arranged in an arc shape and an anti-slip layer is arranged on the inner side.

[0020] As a preferred solution of the present invention, the walking assembly includes a walking wheel, the side of the walking wheel is rotatably connected to a first tooth plate, the interior of the fixed protective shell and the movable protective shell is located on the inner side of the telescopic column and is rotatably connected to a matching gear, one side of the matching gear is meshed with the first tooth plate, and the other side of the matching gear is meshed with a second tooth plate, the second tooth plate is fixedly connected to the clamping plate, and the walking wheel and the first tooth plate are internally installed with a motor for driving the walking wheel.

[0021] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows:

[0022] 1. Before use, the groove can be adjusted in advance. By adjusting the inclination of the grinding disc, the grinding angle can be adjusted. The position of the nut can be fixed by screws to prevent it from falling off. When in use, the distance between the grinding disc and the pipe can be adjusted by starting the first electric push rod to facilitate grinding according to pipes of different diameters. Then, the grinding motor is started to drive the grinding rod to rotate. The grinding rod drives the grinding disc to rotate to grind the groove of the pipe. At the same time, the arc swivel rotates to drive the grinding assembly to move in a circle on the pipe, which is convenient for use. The grinding debris can fall directly through the opening of the fixed protective shell and the arc swivel.

[0023] 2. When welding, the user can adjust the angle of the welding head through the welding head motor. Since the welding angles required for welding pipes at different positions are different, the welding angle needs to be adjusted. The second electric push rod can push the second electric push rod to extend and retract, which is convenient for welding pipes of different diameters. It has a wide range of applications. The rotating motor drives the rotating seat to swing, which is convenient for welding. The swing angle can be adjusted as needed. The hidden welding makes the device safe and will not cause burns to the staff.

[0024] 3. When the position of the device as a whole needs to be adjusted, the second tooth plate extends out during clamping, and drives the first tooth plate to retract through the matching gear so that it does not contact the pipe. Similarly, when walking is required, the clamping piece retracts, driving the walking wheel to extend and contact the pipe to prevent the clamping piece from scratching the pipe and causing damage. The motor can be used to control the walking wheel to rotate and make it walk on the pipe. The support block and the threaded rod are equivalent to the counterweight block, and the arc-shaped swivel rotates to the lowest position at this time, so that the overall center of gravity of the device is downward, which can prevent the device from tilting. The detection component detects the position of the weld in real time. When walking to the appropriate position, the walking component stops, the clamping component starts, the pipe is clamped, and the device is fixed. This setting method is convenient for continuous welding of the pipe, that is, after welding a section, it can walk to the end of the pipe to weld the next section of the pipe without disassembly and installation again, which greatly improves the processing efficiency of the device.

[0025] 4. When it is necessary to adjust the distance of the pipeline, first adjust the base away from the ground, and start the electric push rod to make the two support blocks approach each other, thereby reducing the distance between the fixed protective shell and the mobile protective shell, and then driving the two internal arc-shaped swivels to extend and retract, wherein the two arc-shaped swivels slide along the direction of the pipeline, and the internal limit is set so that they cannot rotate with each other, wherein the driving rotating rod limit extension setting, therefore the distance between the fixed protective shell and the mobile protective shell does not affect the operation of the parts inside the device, wherein since the fixed protective shell and the arc-shaped swivel are both provided with a fixed clamping assembly inside, the fixed protective shell and the mobile protective shell can drive the distance between the pipelines to be adjusted; it should be noted that, since the pipeline has been grooved and polished when adjusting the weld, wherein the position of the protective assembly does not move, therefore the position of the alignment weld adjusted by the polishing assembly and the welding assembly does not move, and the movable pipeline is adjusted, therefore the welding position is not affected, and no secondary calibration is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic diagram of the overall combined structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the arc-shaped rotating ring of the present invention from a first viewing angle;

[0031] Figure 5 This is a schematic diagram of the structure of the arc-shaped rotating ring of the present invention from a second viewing angle;

[0032] Figure 6 It is a detailed structural diagram of the grinding assembly of the present invention;

[0033] Figure 7 It is a detailed structural schematic diagram of the welding assembly of the present invention;

[0034] Figure 8 This is a schematic diagram of the structure of the fixed protective shell of the present invention from a first perspective;

[0035] Fig. 9 This is a schematic diagram of the structure of the fixed protective shell of the present invention from a second viewing angle;

[0036] Fig.10 It is a schematic diagram of the connection structure between the fixed protective shell and the clamping assembly of the present invention;

[0037] Fig.11 It is a schematic diagram of the structure of the clamping assembly and the traveling assembly of the present invention;

[0038] Fig.12 It is a detailed structural diagram of the clamping assembly of the present invention;

[0039] Fig.13 It is a detailed structural diagram of the walking assembly of the present invention;

[0040] Fig.14 It is the pipeline welding flow chart of the present invention.

[0041] Description of reference numerals:

[0042] 001, protection component; 002, rotation component; 003, grinding component; 004, welding component; 005, detection component; 006, clamping component; 007, walking component;

[0043] 101, fixed protective shell; 102, movable protective shell; 103, support block; 104, threaded rod; 105, limit rod; 106, base; 107, electric push rod; 108, lifting ear; 109, observation window; 110, sliding rail;

[0044] 201, arc-shaped rotating ring; 202, gear ring; 203, driving motor; 204, driving rotating rod; 205, driving gear; 206, sliding ring; 207, cavity;

[0045] 301, first electric push rod; 302, grinding motor; 303, grinding rotating rod; 304, hinged rod; 305, grinding block; 306, hinged block; 307, nut; 308, screw; 309, grinding sheet;

[0046] 401, mounting block; 402, rotating motor; 403, rotating seat; 404, second electric push rod; 405, welding rotary head motor; 406, mounting assembly; 407, welding head;

[0047] 601, snap ring; 602, clamping plate; 603, clamping slot; 604, arc-shaped teeth; 605, adjustment motor; 606, adjustment gear; 607, limit strip; 608, telescopic column; 609, square slot; 610, clamping piece; 611, clamping block; 612, movable slot; 613, empty slot;

[0048] 701, traveling wheel; 702, first tooth plate; 703, matching gear; 704, second tooth plate. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0050] The present invention provides Figure 1-14 A pipeline welding device for construction shown in FIG.

[0051] The protection component 001 is sleeved on the outside of the pipeline and is used to protect the device, and includes a fixed protection shell 101 and a movable protection shell 102. The fixed protection shell 101 and the movable protection shell 102 are symmetrically arranged and slide relative to each other;

[0052] The rotating assembly 002 includes two symmetrical arc-shaped rotating rings 201, which are respectively located on the inner sides of the fixed protective shell 101 and the movable protective shell 102 and are slidably arranged with each other. The rotating assembly 002 is rotatably connected with both the fixed protective shell 101 and the movable protective shell 102, wherein the interior of the arc-shaped rotating ring 201 close to the fixed protective shell 101 is provided with a grinding assembly 003, a welding assembly 004 and a detection assembly 005;

[0053] Clamping assembly 006, two clamping assemblies 006 are provided, which are respectively installed on the inner sides of the fixed protective shell 101 and the movable protective shell 102, and the clamping assembly 006 is used to clamp and center the pipeline;

[0054] The walking component 007 is arranged on the side of the clamping component 006. The clamping component 006 and the walking component 007 are used together to enable the device to walk on the pipeline.

[0055] When in use, the user lifts the device and puts it on the pipeline, wherein the fixed protective shell 101 is located near one end of the relatively fixed pipeline, and the movable protective shell 102 is located near one end of the pipeline that is easy to move. Since the device is set with an opening downward, it can be directly placed on the pipeline. At this time, the pipeline is Fig.14 As shown in S1 in the figure, the pipeline can be moved to a suitable position by the walking component 007, and the position of the device can be adjusted. At this time, the grinding component 003 and the welding component 004 are aligned with the weld position, and the device is fixed. The electrical appliances inside the device are connected to the PLC controller signal. Then, the user can judge the diameter of the pipeline according to the distance between the detection component 005 and the pipeline detected by the detection component 005, set the groove degree according to the thickness and diameter of the pipeline measured in advance, and then start the device to make the rotating component 002 rotate inside the protective component 001. At the same time, the grinding component 003 can grind the groove of the pipeline. At this time, the pipeline is as shown in FIG. Fig.14As shown in S2 in FIG. 1 , after grinding, the user can adjust the movable protective shell 102 to move closer to or farther from the fixed protective shell 101 through the electric push rod 107, thereby adjusting the weld between the two pipes. Fig.14 As shown in S3 in FIG. 1 , the welding assembly 004 is then started to weld the weld. The welded pipeline is as shown in FIG. Fig.14 As shown in S4, the clamping of the pipeline can be loosened, and the device can be directly lifted away for easy disassembly, which saves the welding procedure, is conducive to improving the automation level of the device, improving efficiency, reducing labor costs, and is conducive to improving economic benefits.

[0056] As a further optimization of the present invention, the bottoms of both ends of the fixed protective shell 101 and the mobile protective shell 102 are fixedly connected with support blocks 103, the internal threads of the support blocks 103 are connected with threaded rods 104, the internal sliding connection of the support blocks 103 is connected with the support blocks 103, the bottom of the support blocks 103 is fixedly connected with a limiting rod 105, the limiting rod 105 is rotatably connected with the threaded rod 104, and an electric push rod 107 is arranged between the two support blocks 103 on the same side of the displacement. Since the construction site of the construction site is complex and the ground is uneven, in order to reduce the weight of the device itself on the pipeline, the user can rotate the threaded rod 104, wherein the threaded rod 104 can be rotated manually, so that the threaded rod 104 extends downward, pushing the foot 106 down, and the limiting rod 105 is convenient for limiting, wherein the bottom of the foot 106 is provided with an elastic member, which is convenient for application in different venues, wherein the elastic member is detachable, so that the device can be placed on the ground through the foot 106, and it is convenient to place when idle;

[0057] When the distance between the pipelines needs to be adjusted, first adjust the foot 106 away from the ground, and start the electric push rod 107 to make the two support blocks 103 approach each other, thereby reducing the distance between the fixed protective shell 101 and the movable protective shell 102, and then driving the two internal arc-shaped rotating rings 201 to extend and retract, wherein the two arc-shaped rotating rings 201 slide along the direction of the pipeline, and a limit position is set inside so that they cannot rotate with each other, wherein the driving rotating rod 204 is set with a limit position extension and retraction setting, so the distance between the fixed protective shell 101 and the movable protective shell 102 does not affect the operation of the parts inside the device, wherein since the fixed protective shell 101 and the arc-shaped rotating ring 201 are both provided with a fixed clamping clamping assembly 006, the fixed protective shell 101 and the movable protective shell 102 can drive the distance adjustment between the pipelines;

[0058] It should be noted that, when adjusting the weld, the pipeline has already been beveled and ground, and the position of the protective component 001 remains unchanged, so the position of the alignment weld adjusted by the grinding component 003 and the welding component 004 also remains unchanged. What is adjusted is the movable pipeline, so it will not affect the welding position and no secondary calibration is required.

[0059] Among them, the tops of the fixed protective shell 101 and the movable protective shell 102 are both provided with lifting ears 108, and the sides of the lifting ears 108 are provided with observation windows 109. The inner sides of the fixed protective shell 101 and the movable protective shell 102 are fixedly connected with sliding rails 110. The fixed protective shell 101 and the movable protective shell 102 are arranged in a downwardly opening ring shape, and the opening angle is set to 140°. The lifting ears 108 are convenient for users to lift, install and transport the device, and the observation window 109 is convenient for viewing the internal situation. The downward opening shape allows the device to be directly installed and disassembled.

[0060] Further, in the above structure, the outer side of the arc-shaped rotating ring 201 is fixedly connected with a gear ring 202, and three driving motors 203 are installed on the outer side of the fixed protective shell 101. The output end of the driving motor 203 is provided with a driving rotating rod 204, and the driving rotating rod 204 passes through the fixed protective shell 101 and extends to the inside of the arc-shaped rotating ring 201. Two driving gears 205 are fixedly connected to the outer side of the driving rotating rod 204, and the driving gears 205 are respectively meshed and connected with the gear rings 202 on the outer sides of the two arc-shaped rotating rings 201, wherein the driving rotating rod 204 is composed of two sliding rods that can slide against each other;

[0061] When the driving motor 203 is started, the driving motor 203 drives the driving rotating rod 204 to rotate, and the driving rotating rod 204 drives the driving gear 205 to rotate, and drives the arc-shaped rotating ring 201 to rotate through the gear ring 202.

[0062] The arc-shaped rotating ring 201 is provided with a sliding ring 206 inside, and the sliding ring 206 cooperates with the sliding rail 110. The arc-shaped rotating ring 201 is set to an open ring, and the opening angle is set to 140°. The arc-shaped rotating ring 201 cooperates with the fixed protective shell 101 and the movable protective shell 102. The arc-shaped rotating ring 201 is provided with a cavity 207 inside, and the grinding component 003, the welding component 004 and the detection component 005 are all located inside the cavity 207, wherein the detection component 005 is arranged in the inner middle part of the arc-shaped rotating ring 201, wherein the sliding ring 206 on the side of the arc-shaped rotating ring 201 is in the fixed protective shell 1 01 and the movable protective shell 102 slide outside the sliding rail 110 to facilitate the limiting of the arc swivel 201. Since the opening angles of the fixed protective shell 101 and the arc swivel 201 are both smaller than the lifting ear 108140°, the arc swivel 201 can rotate inside the fixed protective shell 101, thereby driving the grinding component 003, the welding component 004 and the detection component 005 to rotate around the pipeline. The detection component 005 is used to perform real-time detection of the weld and transmit the detected signal to the server. The server is connected to the client through the network, and the user can judge the internal welding condition according to the received signal.

[0063] The grinding assembly 003 includes a first electric push rod 301 installed on the inner side of one end of the arc-shaped rotating ring 201, a grinding motor 302 is installed on the output end of the first electric push rod 301, a grinding rotating rod 303 is installed on the output end of the grinding motor 302, an articulated rod 304 is hinged on the outer side of the grinding rotating rod 303, a grinding block 305 is hinged on the end of the articulated rod 304, an articulated block 306 is hinged on the end of the grinding block 305, a nut 307 is rotatably connected to the outer end of the articulated block 306, the nut 307 is threadedly connected to the grinding rotating rod 303, wherein the outer side of the nut 307 is threadedly connected to a screw 308, the screw 308 penetrates the nut 307 and abuts against the grinding rotating rod 303, and a grinding sheet 309 is arranged on the outer side of the grinding block 305;

[0064] Before use, the user can adjust the groove in advance. The user rotates the nut 307 to make the nut 307 move on the grinding rod 303. A scale line is set on the outside of the grinding rod 303, which is convenient for judging the angle of the groove according to the scale line. The nut 307 is rotatably connected to the hinge block 306, so as to adjust the inclination of the grinding sheet 309, which is convenient for adjusting the grinding angle. In order to improve stability, after adjustment, the user can fix the position of the nut 307 by the screw 308 to prevent it from falling off. When in use, the user can adjust the distance between the grinding sheet 309 and the pipe by starting the first electric push rod 301, so as to facilitate grinding according to pipes of different diameters, and then start the grinding motor 302 to drive the grinding rod 303 to rotate. The grinding rod 303 drives the grinding sheet 309 to rotate to grind the groove of the pipe. At the same time, the arc swivel 201 rotates to drive the grinding component 003 to move in a circle on the pipe, which is convenient for use.

[0065] The welding assembly 004 includes a mounting block 401 mounted on the inner side of the arc-shaped rotating ring 201, the mounting block 401 is arranged opposite to the first electric push rod 301, a rotating motor 402 is mounted on the top of the mounting block 401, a rotating seat 403 rotatably connected to the mounting block 401 is mounted on the output end of the rotating motor 402, a second electric push rod 404 is mounted inside the rotating seat 403, a welding rotary head motor 405 is mounted on the output end of the second electric push rod 404, a mounting assembly 406 is mounted on the end of the welding rotary head motor 405, and a welding head 407 is arranged on the end of the mounting assembly 406;

[0066] When welding, the user can adjust the angle of the welding head 407 through the welding head motor 405. Since the welding angles required for welding pipes at different positions are different, the welding angle needs to be adjusted. The second electric push rod 404 can push the second electric push rod 404 to extend and retract, which is convenient for welding pipes of different diameters and has a wide range of applications. The rotating motor 402 drives the rotating seat 403 to swing, which is convenient for welding. The swing angle can be adjusted as needed.

[0067] In further optimization of the above embodiment, in order to improve efficiency and increase stability, the clamping assembly 006 includes a snap ring 601, three clamping plates 602 are fixedly connected to the inner side of the snap ring 601, and a clamping groove 603 is provided inside the clamping plate 602. The outer side of the snap ring 601 is fixedly connected to an arc-shaped tooth 604, and the outer sides of the sliding rail 110 and the movable protective shell 102 are both installed with an adjustment motor 605, and the output end of the adjustment motor 605 is fixedly connected to an adjustment gear 606, and the adjustment gear 606 is meshed with the arc-shaped tooth 604; wherein, the side of the snap ring 601 is fixed A limit strip 607 is connected, a telescopic column 608 is sleeved on the outer side of the card plate 602, and a movable groove 612 adapted to the clamp ring 601 and an empty groove 613 adapted to the telescopic column 608 are provided inside the fixed protective shell 101 and the movable protective shell 102; further, a clamping piece 610 is fixedly connected to the bottom of the telescopic column 608, a square groove 609 adapted to the card plate 602 is provided inside the telescopic column 608, a clamping block 611 penetrating the clamping groove 603 is fixedly connected inside the square groove 609, and the clamping piece 610 is arranged in an arc shape and an anti-slip layer is arranged on the inner side;

[0068] When clamping and fixing is required, the user can start the adjustment motor 605, and the adjustment motor 605 drives the adjustment gear 606 to rotate. The adjustment gear 606 drives the clamping ring 601 to rotate inside the movable groove 612 through the arc teeth 604, wherein the movable groove 612 drives the clamping slot 603 to move. Since the clamping slot 603 is set at an angle, it can push the clamping block 611 that passes through the inside to move. The clamping block 611 pushes the clamping piece 610 to extend outward through the telescopic column 608, thereby clamping the pipeline, wherein three clamping pieces 610 are provided, and the telescopic column 608 slides inside the empty groove 613 to facilitate limiting it.

[0069] As a further optimization of the present invention, the walking component 007 includes a walking wheel 701, and the side of the walking wheel 701 is rotatably connected to the first tooth plate 702. The interior of the fixed protective shell 101 and the movable protective shell 102 is located inside the telescopic column 608 and is rotatably connected to the matching gear 703. One side of the matching gear 703 is meshed with the first tooth plate 702, and the other side of the matching gear 703 is meshed with the second tooth plate 704. The second tooth plate 704 is fixedly connected to the clamping piece 610. A motor driving the walking wheel 701 is installed inside the first tooth plate 702. When clamping, the second tooth plate 704 extends out and drives the first tooth plate 702 to retract through the matching gear 703 so that it does not contact the pipeline. Similarly, when walking is required, the clamping piece 610 retracts to drive the walking wheel 701. The wheel 701 extends out and contacts the pipe to prevent the clamping piece 610 from scratching the pipe and causing damage. The motor can be used to control the travel wheel 701 to rotate and make it travel on the pipe, wherein the support block 103 and the threaded rod 104 are equivalent to the counterweight block, and at this time the arc-shaped swivel ring 201 rotates to the lowest position, so that the overall center of gravity of the device is downward, which can prevent the device from tilting, wherein the detection component 005 detects the position of the weld in real time, and when it travels to the appropriate position, the travel component 007 stops, and the clamping component 006 starts to clamp the pipe and fix the device, and this arrangement method facilitates continuous welding of the pipe, that is, after welding a section, it can travel to the end of the pipe to weld the next section of the pipe, and there is no need to disassemble and install again, which greatly improves the processing efficiency of the device.

[0070] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pipeline welding device for construction, characterized in that: include A protection assembly (001) is sleeved on the outside of the pipeline and is used to protect the device, comprising a fixed protection shell (101) and a movable protection shell (102), wherein the fixed protection shell (101) and the movable protection shell (102) are symmetrically arranged and slide relative to each other; A rotating assembly (002), the rotating assembly (002) comprising two symmetrical arc-shaped rotating rings (201), the two arc-shaped rotating rings (201) being respectively located on the inner sides of the fixed protective shell (101) and the movable protective shell (102) and being arranged to slide relative to each other, the rotating assembly (002) being rotationally connected to both the fixed protective shell (101) and the movable protective shell (102), wherein a grinding assembly (003), a welding assembly (004) and a detection assembly (005) are arranged inside the arc-shaped rotating ring (201) on one side close to the fixed protective shell (101); The grinding assembly (003) comprises a first electric push rod (301) installed on the inner side of one end of an arc-shaped rotating ring (201); a grinding motor (302) is installed on the output end of the first electric push rod (301); a grinding rotating rod (303) is installed on the output end of the grinding motor (302); a hinge rod (304) is hinged on the outer side of the grinding rotating rod (303); a grinding block (305) is hinged on the end of the hinge rod (304); a hinge block (306) is hinged on the end of the grinding block (305); a nut (307) is rotatably connected to the outer end of the hinge block (306); the nut (307) is threadedly connected to the grinding rotating rod (303); and a screw (308) is threadedly connected to the outer side of the nut (307); The tops of the fixed protective shell (101) and the movable protective shell (102) are both provided with lifting ears (108), the sides of the lifting ears (108) are provided with observation windows (109), the inner sides of the fixed protective shell (101) and the movable protective shell (102) are both fixedly connected with sliding rails (110), and the fixed protective shell (101) and the movable protective shell (102) are arranged in a ring shape opening downward, and the opening angle is set to 140°; The welding assembly (004) comprises a mounting block (401) mounted on the inner side of the arc-shaped rotating ring (201), the mounting block (401) being arranged opposite to the first electric push rod (301), a rotating motor (402) being mounted on the top of the mounting block (401), a rotating seat (403) rotatably connected to the mounting block (401) being mounted on the output end of the rotating motor (402), a second electric push rod (404) being mounted inside the rotating seat (403), a welding rotary head motor (405) being mounted on the output end of the second electric push rod (404), a mounting assembly (406) being mounted on the end of the welding rotary head motor (405), and a welding head (407) being arranged on the end of the mounting assembly (406); A clamping assembly (006), wherein two clamping assemblies (006) are provided and are respectively installed on the inner side of a fixed protective shell (101) and a movable protective shell (102), wherein the clamping assembly (006) is used to clamp and align a pipeline, wherein the clamping assembly (006) comprises a clamping ring (601), wherein the inner side of the clamping ring (601) is fixedly connected with three clamping plates (602), wherein the inside of the clamping plates (602) is provided with a clamping groove (603), wherein the outer side of the clamping ring (601) is fixedly connected with an arc-shaped tooth (604), wherein the outer side of the sliding rail (110) and the movable protective shell (102) are both installed with an adjustment motor (605), wherein the output end of the adjustment motor (605) is fixedly connected with an adjustment gear (606), wherein the adjustment gear (606) is connected to the adjusting gear (606). The arc-shaped teeth (604) are meshed and connected, the side of the clamping ring (601) is fixedly connected to the limit strip (607), the outer side of the clamping plate (602) is sleeved with a telescopic column (608), the interiors of the fixed protective shell (101) and the movable protective shell (102) are both provided with a movable groove (612) adapted to the clamping ring (601) and an empty groove (613) adapted to the telescopic column (608), the bottom of the telescopic column (608) is fixedly connected with a clamping sheet (610), the interior of the telescopic column (608) is provided with a square groove (609) adapted to the clamping plate (602), the interior of the square groove (609) is fixedly connected with a clamping block (611) penetrating the clamping groove (603), and the clamping sheet (610) is arranged in an arc shape and an anti-slip layer is arranged on the inside; A walking assembly (007) is arranged on the side of the clamping assembly (006). The clamping assembly (006) and the walking assembly (007) are used together to enable the device to walk on the pipeline. The walking assembly (007) includes a walking wheel (701). The side of the walking wheel (701) is rotatably connected to a first tooth plate (702). The interior of the fixed protective shell (101) and the movable protective shell (102) are located inside the telescopic column (608) and are rotatably connected to a matching gear (703). One side of the matching gear (703) is meshedly connected to the first tooth plate (702), and the other side of the matching gear (703) is meshedly connected to a second tooth plate (704). The second tooth plate (704) is fixedly connected to the clamping plate (610). The walking wheel (701) and the first tooth plate (702) are internally installed with a motor for driving the walking wheel (701).

2. A pipe welding device for construction according to claim 1, characterized in that: The bottoms of both ends of the fixed protective shell (101) and the movable protective shell (102) are fixedly connected to support blocks (103); the internal threads of the support blocks (103) are connected to threaded rods (104); the interior of the support blocks (103) is slidably connected to the support blocks (103); the bottom of the support blocks (103) is fixedly connected to a limit rod (105); the limit rod (105) is rotatably connected to the threaded rod (104); and an electric push rod (107) is provided between the two support blocks (103) on the same side.

3. A pipe welding device for construction according to claim 2, characterized in that: The outer side of the arc-shaped rotating ring (201) is fixedly connected to a gear ring (202); the outer side of the fixed protective shell (101) is equipped with three driving motors (203); the output end of the driving motor (203) is provided with a driving rotating rod (204); the driving rotating rod (204) penetrates the fixed protective shell (101) and extends to the inside of the arc-shaped rotating ring (201); the outer side of each driving rotating rod (204) is fixedly connected to two driving gears (205); the driving gears (205) are respectively meshed with the gear rings (202) on the outer sides of the two arc-shaped rotating rings (201); wherein the driving rotating rod (204) is composed of two sliding rods that can slide against each other.

4. A pipe welding device for construction according to claim 3, characterized in that: A sliding ring (206) is arranged inside the arc-shaped rotating ring (201), and the sliding ring (206) cooperates with the sliding rail (110). The arc-shaped rotating ring (201) is arranged in an open ring shape, and the opening angle is set to 140°, wherein the arc-shaped rotating ring (201) cooperates with the fixed protective shell (101) and the movable protective shell (102), and a cavity (207) is arranged inside the arc-shaped rotating ring (201), and the grinding component (003), the welding component (004) and the detection component (005) are all located inside the cavity (207), wherein the detection component (005) is arranged in the inner middle part of the arc-shaped rotating ring (201).

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