Pipeline welding device and method

Abstract

The invention discloses a pipeline welding device and method, and relates to the technical field of pipeline welding, the pipeline welding device comprises a clamping assembly arranged on a base structure; the rotary welding assembly is arranged on the clamping assembly; wherein the rotary welding assembly comprises a rotating structure and a welding structure, the rotating structure comprises a driving part, a pair of mounting supports and a pair of rotating rings, the pair of mounting supports are arranged on the clamping assembly, the pair of rotating rings are arranged on the pair of mounting supports and rotationally connected with the mounting supports, and the pair of rotating rings are connected through a plurality of connecting rods; the driving part is arranged on one mounting support and matched with one rotating ring, the welding structure is arranged on the other rotating ring, and the problems that when an existing welding device is used, the equipment cost is high, the energy consumption is large, and the welding efficiency is high are solved. And in addition, the functions are difficult to play normally in narrow and limited diversified working environments, and the welding requirement cannot be met.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline welding, and in particular to a pipeline welding device and method. Background Art

[0002] In the field of pipeline welding, rotary pipe welding is currently the most common method. This method relies on powerful equipment to drive the pipe rotation, placing extremely high demands on the welding equipment. To meet this power requirement, the equipment must be equipped with high-performance drive motors, sturdy rotary support structures, and other components, significantly increasing the equipment's R&D, manufacturing, and maintenance costs.

[0003] Furthermore, the process of driving the pipe rotation requires continuous consumption of large amounts of electricity or other energy, but the energy utilization rate is relatively low. This energy consumption issue is particularly prominent during long-term, large-scale pipe welding operations. More critically, in confined working environments like small indoor pipe wells and underground pipeline laying sites, large rotary welding equipment is difficult to perform due to its bulk and inconvenient operation. Even if it can be barely entered, the equipment's rotation operation is restricted by the surrounding space and cannot operate normally, resulting in the welding work being unable to proceed smoothly. In some special scenarios, such as welding pipes inside high-rise buildings and welding complex pipes inside ships, the existing rotary welding equipment is almost unable to meet the welding needs due to the small space and complex structure, seriously restricting the application and development of pipeline welding technology in diverse scenarios. Summary of the Invention

[0004] Based on this, in response to the above problems, the present invention proposes a pipeline welding device and method, which solves the problems of current welding devices, such as high equipment cost, high energy consumption, difficulty in functioning normally in a narrow and restricted diverse working environment, and inability to meet welding needs.

[0005] The technical solution of the present invention is: A pipeline welding device, comprising: A clamping assembly is provided on the base structure and is used for clamping and moving two pipes to be welded; A rotary welding assembly, which is arranged on the clamping assembly and is used for welding two pipes; Among them, the rotary welding assembly includes a rotating structure and a welding structure. The rotating structure includes a driving member, a pair of mounting brackets and a pair of rotating rings. The pair of mounting brackets are respectively arranged on the clamping assembly, and the pair of rotating rings are respectively arranged on the pair of mounting brackets and are rotatably connected to the mounting brackets. The pair of rotating rings are connected by several connecting rods. The driving member is arranged on one of the mounting brackets and is cooperated with one of the rotating rings to drive the rotating ring to rotate. The welding structure is arranged on the other rotating ring and rotates with the rotating ring.

[0006] Preferably, the welding structure includes a welding head, an adjustable mounting member and a mounting ring, the mounting ring is sleeved on one end of one of the rotating rings and fixedly connected to the rotating ring, the adjustable mounting member is fixedly set on the mounting ring, the welding head is set on the adjustable mounting member, and one end is located between a pair of rotating rings, and the adjustable mounting member is used to adjust the height of the welding head.

[0007] Preferably, the adjustable mounting member includes a mounting frame, a sliding block, a threaded rod and a first drive motor, the mounting frame is arranged on the mounting ring and one end is fixedly connected to the mounting ring, the threaded rod is arranged in the mounting frame, the two ends of the threaded rod respectively pass through both sides of the mounting frame and are rotatably connected to the mounting frame, the sliding block is arranged in the mounting frame and is slidably connected to the mounting frame, the sliding block is sleeved on the threaded rod and is threadedly connected to the threaded rod, the first drive motor is fixedly arranged on the top of the mounting frame, the output shaft of the first drive motor is fixedly connected to the threaded rod for driving the threaded rod to rotate, sliding grooves are provided on both sides of the mounting frame, the two ends of the sliding block are respectively located in the sliding grooves and are slidably connected to the sliding grooves, and the welding head is fixedly set at one end of the sliding block.

[0008] Preferably, the driving member includes a second driving motor, an L-shaped mounting seat, a main gear and a sub-gear, the sub-gear is sleeved on one end of another rotating ring and fixedly connected to the rotating ring, the L-shaped mounting seat is fixedly set on the mounting bracket, the second driving motor is fixedly set on the L-shaped mounting seat, the output shaft of the second driving motor passes through one side of the L-shaped mounting seat and is rotatably connected to the L-shaped mounting seat, and the main gear is fixedly set at the end of the output shaft of the second driving motor and is meshed with the sub-gear.

[0009] Preferably, the mounting bracket includes a fixed ring and a pair of support legs, one end of the pair of support legs is fixedly connected to the bottom of the fixed ring, the rotating ring is arranged in the fixed ring and is rotatably connected to the fixed ring, and the L-shaped mounting seat is fixedly arranged on the top of the fixed ring.

[0010] Material toggling mechanism, its both ends are to be connected with the up-down knob.The said mechanism that the said sliding mechanism is in the rotation on the steering wheel, and the said sliding mechanism is in the rotation with the steering wheel. The steering wheel is in the rotation with the steering wheel. The steering wheel is in the rotation with the steering wheel.

[0011] Preferably, a pair of limit members are provided on the mounting base, and the pair of limit members are fixedly arranged on both sides of the mounting base, and the limit members include a limit slide rod and a pair of fixed mounting seats, and the pair of fixed mounting seats are respectively arranged on both sides of the mounting base and cooperate with the sliding track, and the two ends of the limit slide rod are respectively fixedly connected to the pair of fixed mounting seats, and the pair of sliding mounting seats are respectively slidably connected to the limit slide rods in the pair of limit members.

[0012] Preferably, a pair of sliding mounting blocks are provided on the sliding mounting seat, the pair of sliding mounting blocks are respectively located on both sides of the top of the sliding mounting seat, and are fixedly connected to the sliding mounting seat by bolts, and the pair of sliding mounting blocks are respectively slidably connected to the limiting sliding rods in a pair of limiting members.

[0013] The locking mechanism is configured to lock the locking cam of the locking cam and lock the locking cam, and the locking cam is configured to lock the locking cam of the locking cam and the locking cam, wherein the locking cam is secured to the locking cam of the locking cam with respect to the locking cam.

[0014] A pipeline welding method uses the pipeline welding device described above to perform pipeline welding.

[0015] Compared with the prior art, the present invention has the following beneficial effects: Compared with traditional pipe welding devices, the present invention changes the pipe welding process from pipe rotation to welding assembly rotation. When in use, the two pipes to be welded are first clamped by the clamping assembly, and then the two pipes to be welded are moved by the clamping assembly so that their welding points can contact. At the same time, the two pipes to be welded are passed through a pair of rotating rings so that the contact point of the two pipes to be welded is located between the two rotating rings and cooperates with the welding structure. Then, a driving member drives one rotating ring to rotate, which drives the other rotating ring to rotate, so that the welding structure performs a circular motion along the rotating ring, thereby completing the circumferential welding without rotating the pipe. This solves the problems of current welding devices in use, such as high equipment cost, high energy consumption, difficulty in functioning normally in narrow and restricted diverse working environments, and inability to meet welding needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of a pipeline welding device in use according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a pipeline welding device described in an embodiment of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the structure of a pipeline welding device described in an embodiment of the present invention. Figure 2 ; Figure 4 This is a partial structural diagram of a pipeline welding device according to an embodiment of the present invention; Figure 5 It is described in the embodiment of the present invention Figure 4 Schematic diagram of the local enlarged structure at A in the middle; Description of reference numerals: 10-clamping assembly, 11-sliding structure, 12-clamping structure, 100-mounting base, 101-bidirectional reverse screw, 102-third drive motor, 103-sliding mounting seat, 104-sliding rail, 105-rotating mounting seat, 106-threaded slider, 107-limiting member, 108-limiting slide rod, 109-fixed mounting seat, 110-sliding mounting block, 111-upper ring body, 112-lower ring body, 113-fixed bracket, 114-clamping member, 115-driving cylinder, 116-arc clamping block, 117-partition, 118-sliding block, 119-snap-lock block, 120-notch, 1 21-rubber pad, 122-fixed vertical plate, 123-L-shaped card seat, 124-card slot, 20-rotational welding assembly, 21-rotational structure, 22-welding structure, 200-driving member, 201-mounting bracket, 202-rotating ring, 203-connecting rod, 204-welding head, 205-adjustable mounting member, 206-mounting ring, 207-mounting frame, 208-sliding block, 209-threaded rod, 210-first drive motor, 211-sliding slot, 212-second drive motor, 213-L-shaped mounting seat, 214-main gear, 215-secondary gear, 216-fixed ring, 217-support leg. DETAILED DESCRIPTION

[0018] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0019] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly specified.

[0021] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0022] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above and obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above and obliquely above the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0023] The following describes a number of different embodiments or examples for implementing different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0024] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] Example: like Figures 1 to 5 As shown, this embodiment discloses a pipeline welding device, comprising: A clamping assembly 10 is provided on the base structure and is used to clamp and move two pipes to be welded; A rotary welding assembly 20 is provided on the clamping assembly 10 and is used for welding two pipes; Among them, the rotary welding assembly 20 includes a rotating structure 21 and a welding structure 22. The rotating structure 21 includes a driving member 200, a pair of mounting brackets 201 and a pair of rotating rings 202. The pair of mounting brackets 201 are respectively arranged on the clamping assembly 10, and the pair of rotating rings 202 are respectively arranged on the pair of mounting brackets 201 and are rotatably connected to the mounting brackets 201. The pair of rotating rings 202 are connected by a number of connecting rods 203. The driving member 200 is arranged on one of the mounting brackets 201 and is cooperated with one of the rotating rings 202 to drive the rotating ring 202 to rotate. The welding structure 22 is arranged on the other rotating ring 202 and rotates with the rotating ring 202.

[0026] Compared with traditional pipe welding devices, the present invention changes the pipe welding process from pipe rotation to welding assembly rotation. When in use, the two pipes to be welded are first clamped by the clamping assembly 10, and then the two pipes to be welded are moved by the clamping assembly 10 so that the welding points can contact each other. At the same time, the two pipes to be welded are passed through a pair of rotating rings 202 so that the contact point of the two pipes to be welded is located between the two rotating rings 202 and cooperates with the welding structure 22. Then, one rotating ring 202 is driven to rotate by the driving member 200, which drives the other rotating ring 202 to rotate, so that the welding structure 22 performs a circular motion along the rotating ring 202, thereby completing the circumferential welding without rotating the pipe. This solves the problems of the current welding device when in use, such as high equipment cost, high energy consumption, difficulty in functioning normally in a narrow and restricted diversified working environment, and inability to meet welding needs.

[0027] In order to facilitate the installation of the welding structure 22, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that the welding structure 22 includes a welding head 204, an adjustable mounting member 205 and a mounting ring 206. The mounting ring 206 is sleeved on one end of one of the rotating rings 202 and is fixedly connected to the rotating ring 202. The adjustable mounting member 205 is fixedly set on the mounting ring 206. The welding head 204 is set on the adjustable mounting member 205, and one end is located between a pair of rotating rings 202. The adjustable mounting member 205 is used to adjust the height of the welding head 204.

[0028] It should be noted that the welding head 204 can be a laser welding head 204 or a welding gun in the prior art. There is a space between the pair of rotating rings 202 , and one end of the welding head 204 is located in the space between the pair of rotating rings 202 .

[0029] When in use, the provision of the mounting ring 206 can facilitate the installation of the adjustable mounting member 205 and the welding head 204 .

[0030] In order to facilitate the adjustment of the height of the welding head 204 so as to better weld the pipe, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that the adjustable mounting member 205 includes a mounting frame 207, a sliding block 208, a threaded rod 209 and a first drive motor 210. The mounting frame 207 is set on the mounting ring 206, and one end is fixedly connected to the mounting ring 206. The threaded rod 209 is set in the mounting frame 207. The two ends of the threaded rod 209 respectively pass through the two sides of the mounting frame 207 and are rotatably connected to the mounting frame 207. The sliding block 208 is set on the mounting ring 206. The mounting frame 207 is inside the sliding block 208 and is slidingly connected to the mounting frame 207. The sliding block 208 is sleeved on the threaded rod 209 and is threadedly connected to the threaded rod 209. The first drive motor 210 is fixedly arranged on the top of the mounting frame 207. The output shaft of the first drive motor 210 is fixedly connected to the threaded rod 209 and is used to drive the threaded rod 209 to rotate. Sliding grooves 211 are provided on both sides of the mounting frame 207. The two ends of the sliding block 208 are respectively located in the sliding grooves 211 and are slidingly connected to the sliding grooves 211. The welding head 204 is fixedly arranged at one end of the sliding block 208, and the other end is located between a pair of rotating rings 202.

[0031] When in use, the threaded rod 209 is driven by the first driving motor 210 , thereby driving the sliding block 208 , thereby achieving adjustment of the height of the welding head 204 .

[0032] It should be noted that the welding head 204 and the sliding block 208 can be fixed by welding.

[0033] In order to facilitate the driving of the rotating ring 202 to rotate, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that the driving member 200 includes a second driving motor 212, an L-shaped mounting seat 213, a main gear 214 and a sub-gear 215. The sub-gear 215 is sleeved on one end of the other rotating ring 202 and fixedly connected to the rotating ring 202. The L-shaped mounting seat 213 is fixedly set on the mounting bracket 201. The second driving motor 212 is fixedly set on the L-shaped mounting seat 213. The output shaft of the second driving motor 212 passes through one side of the L-shaped mounting seat 213 and is rotatably connected to the L-shaped mounting seat 213. The main gear 214 is fixedly set at the end of the output shaft of the second driving motor 212 and is meshed with the sub-gear 215.

[0034] When in use, the second drive motor 212 can drive the main gear 214, thereby driving the sub-gear 215 meshing with the main gear 214, and then driving the rotating ring 202 fixedly connected to the sub-gear 215 to rotate, so that the two rotating rings 202 can rotate simultaneously.

[0035] In order to facilitate the installation of the rotating ring 202 and the rotation of the rotating ring 202, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that the mounting bracket 201 includes a fixed ring 216 and a pair of support legs 217, one end of the pair of support legs 217 is fixedly connected to the bottom of the fixed ring 216, the rotating ring 202 is arranged in the fixed ring 216 and is rotatably connected to the fixed ring 216, and the L-shaped mounting seat 213 is fixedly arranged on the top of the fixed ring 216.

[0036] When in use, by providing the fixing ring 216 and rotatably connecting the rotating ring 202 to the fixing ring 216 , the installation of the rotating ring 202 can be facilitated, and the rotation of the rotating ring 202 can also be facilitated.

[0037] In one embodiment, a rotating bearing is provided in the fixed ring 216 , the outer ring of the rotating bearing is fixedly connected to the inner wall of the fixed ring 216 , and the inner ring of the rotating bearing is fixedly connected to the outer wall of the rotating ring 202 .

[0038] By providing a rotating bearing, the rotating ring 202 and the fixed ring 216 are rotatably connected via the rotating bearing, which facilitates the rotation of the rotating ring 202. The rotating bearing is embedded and installed on the inner side wall of the fixed ring 216, which is not shown in the figure.

[0039] In order to facilitate the clamping of two pipes to be welded and to facilitate the movement of two pipes to be welded, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that the clamping assembly 10 includes a sliding structure 11 and a pair of clamping structures 12. The sliding structure 11 includes a mounting base 100, a bidirectional reverse screw 101, a third drive motor 102, a pair of sliding mounting seats 103 and a pair of sliding rails 104. The mounting base 100 is arranged on the basic structure, and the pair of sliding rails 104 are fixedly arranged on the mounting base 100 and are respectively located on both sides of the mounting base 100. The pair of sliding mounting seats 103 are arranged on the pair of sliding rails 104 and are respectively slidably connected to the pair of sliding rails 104. The pair of clamping structures 12 are respectively arranged on the pair of sliding rails. On the mounting seat 103, the bidirectional reverse thread screw 101 is arranged between a pair of sliding rails 104, and a pair of rotating mounting seats 105 are fixedly provided on the mounting base 100. The two ends of the bidirectional reverse thread screw 101 respectively pass through a pair of rotating mounting seats 105 and are rotatably connected to a pair of rotating mounting seats 105. A pair of sliding mounting seats 103 are provided with a threaded slider 106 at the bottom, one end of the threaded slider 106 is fixedly connected to the bottom of the sliding mounting seat 103, and the other end is threadedly connected to the bidirectional reverse thread screw 101. The third drive motor 102 is fixedly set on the mounting base 100, and the output shaft of the third drive motor 102 is fixedly connected to the end of one end of the bidirectional reverse thread screw 101, for driving the bidirectional reverse thread screw 101. The other end of the support leg 217 is fixedly set on the mounting base 100.

[0040] Among them, a partition part 117 is provided in the middle of the bidirectional reverse screw 101, and a positive thread is provided on the bidirectional reverse screw 101 from the partition part 117 to one end of the bidirectional reverse screw 101 and a reverse thread is provided from the partition part 117 to the other end of the bidirectional reverse screw 101. The threaded slider 106 on one sliding mounting seat 103 is threadedly connected to the end of the bidirectional reverse screw 101 with the positive thread, and the threaded slider 106 on the other sliding mounting seat 103 is threadedly connected to the end of the bidirectional reverse screw 101 with the reverse thread.

[0041] During use, the bidirectional reverse thread screw 101 is driven by the third drive motor 102, thereby allowing the pair of sliding mounts 103 to move closer or further away simultaneously, thereby facilitating the simultaneous approach or movement of the pair of clamping structures 12 and the two pipes to be welded fixed thereto, thereby facilitating adjustment of the distance between the two pipes to be welded, thereby facilitating welding. The provision of a pair of sliding rails 104 facilitates the stable sliding of the sliding mounts 103.

[0042] It should be noted that the basic structure includes but is not limited to a mounting frame or a flat ground.

[0043] As a further preference, a pair of sliding blocks 118 are provided at the bottom of the sliding mounting seat 103 , one end of the pair of sliding blocks 118 is fixedly connected to the sliding mounting seat 103 , and the other end is slidably connected to the pair of sliding rails 104 respectively.

[0044] By providing a pair of sliding blocks 118 , the sliding between the sliding mounting seat 103 and the pair of sliding rails 104 can be made more stable, which can effectively reduce the shaking during the movement process, thereby effectively reducing the deviation of the pipeline during the movement process.

[0045] In order to further reduce the jitter during the movement, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that a pair of limiting members 107 are provided on the mounting base 100, and the pair of limiting members 107 are respectively fixed on both sides of the mounting base 100. The limiting members 107 include a limiting slide 108 and a pair of fixed mounting seats 109. The pair of fixed mounting seats 109 are respectively arranged on both sides of the mounting base 100 and are coordinated with the sliding rail 104. The two ends of the limiting slide 108 are respectively fixedly connected to the pair of fixed mounting seats 109, and the pair of sliding mounting seats 103 are respectively slidably connected to the limiting slides 108 in the pair of limiting members 107.

[0046] Among them, a pair of sliding mounting blocks 110 are provided on the sliding mounting seat 103, and the pair of sliding mounting blocks 110 are respectively located on both sides of the top of the sliding mounting seat 103, and are fixedly connected to the sliding mounting seat 103 by bolts. The pair of sliding mounting blocks 110 are respectively slidably connected to the limiting sliding rods 108 in a pair of limiting members 107.

[0047] During use, the arrangement of the sliding mounting block 110 and the limiting slide bar 108 can further enhance the stability of the sliding mounting seat 103 during movement, further reduce the shaking during movement, and thereby effectively reduce the deviation of the pipeline during movement.

[0048] In order to facilitate the installation of the limiting slide bar 108 and the sliding mounting block 110, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that a snap-fit block 119 is provided on one side of the sliding mounting block 110, and the snap-fit block 119 and the sliding mounting block 110 are fixedly connected by bolts. The snap-fit block 119 and the sliding mounting block 110 are provided with a slot 120 that is coordinated with the limiting slide bar 108. The slot 120 passes through the snap-fit block 119 and the sliding mounting block 110, and the limiting slide bar 108 passes through the slot 120 and is slidably connected to the slot 120.

[0049] By providing the buckling block 119 and the notch 120 , the installation and sliding of the limiting slide bar 108 can be facilitated.

[0050] In order to facilitate the fixing of the pipeline, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that the clamping structure 12 includes an upper ring body 111, a lower ring body 112 and a pair of fixed brackets 113, one end of the pair of fixed brackets 113 is fixedly connected to a pair of sliding mounting blocks 110 on the sliding mounting seat 103, and the lower ring body 112 is fixedly set at the other end of the pair of fixed brackets 113. The upper ring body 111 is set above the lower ring body 112 and is fixedly connected to the lower ring body 112 by bolts. Three clamping members 114 are provided on the upper ring body 111 and the lower ring body 112, two of which are provided on the upper ring body 111, and the other clamping member 114 is provided on the lower ring body 112. The three clamping members 114 The centers of the upper ring body 111 and the lower ring body 112 are distributed in a circular array, and the clamping piece 114 includes a driving cylinder 115 and an arc-shaped clamping block 116, wherein the driving cylinder 115 in the two clamping pieces 114 arranged on the upper ring body 111 is fixedly connected to the upper ring body 111, and the output shaft of the driving cylinder 115 in the two clamping pieces 114 arranged on the upper ring body 111 passes through the upper ring body 111 and is slidably connected to the upper ring body 111, the driving cylinder 115 arranged on the lower ring body 112 is fixedly connected to the lower ring body 112, the output shaft of the driving cylinder 115 arranged on the lower ring body 112 passes through the lower ring body 112 and is slidably connected to the lower ring body 112, and the arc-shaped clamping block 116 is arranged at the end of the output shaft of the driving cylinder 115.

[0051] The arc-shaped clamping block 116 is fixedly connected to the end of the output shaft of the driving cylinder 115 by bolts. The arc-shaped clamping block 116 can be set to a variety of specifications, that is, different curvatures, so as to adapt to pipes to be welded with different diameters.

[0052] During use, one end of the pipe to be welded can be placed between the upper ring body 111 and the lower ring body 112, and then the arc-shaped clamping block 116 is driven by the driving cylinder 115 to clamp the pipe, thereby fixing the pipe. By setting a pair of clamping structures 12, the clamping of two pipes to be welded can be completed at the same time.

[0053] As a further preference, a rubber pad 121 is provided on the side of the arc-shaped clamping block 116 that contacts the pipe, and the rubber pad 121 is fixedly connected to the arc-shaped clamping block 116 .

[0054] The provision of the rubber pad 121 can facilitate better contact between the arc-shaped clamping block 116 and the outer side wall of the pipe, thereby facilitating better fixation of the pipe to be welded.

[0055] In order to facilitate the installation of the fixing frame, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that the fixing bracket 113 includes a fixing vertical plate 122 and an L-shaped bracket 123. The L-shaped bracket 123 is arranged on one side of the sliding mounting block 110 and is fixedly connected to the sliding mounting block 110 by bolts. A slot 124 is provided on the L-shaped bracket 123. One end of the fixing vertical plate 122 is inserted into the slot 124 and is fixedly connected to the L-shaped bracket 123 by bolts. The lower ring body 112 is fixedly arranged on the top of the fixing vertical plate 122 in a pair of fixing brackets 113 and is fixedly connected to the fixing vertical plate 122.

[0056] When in use, first fix the L-shaped holder 123 on the sliding mounting block 110 by bolts, then insert the fixed vertical plate 122 into the slot 124 and fix it by bolts, so that the fixed bracket 113 can be installed.

[0057] It should be noted that the lower ring body 112 and the fixed vertical plate 122 can be fixedly connected by bolts or welding.

[0058] A pipeline welding method, using the pipeline welding device described above to perform pipeline welding, specifically comprises the following steps: S1: Start the third drive motor 102, and drive the pair of sliding mounting seats 103 to move to both sides through the bidirectional reverse screw 101, so that the distance between the pair of clamping structures 12 reaches the maximum, so as to facilitate clamping the pipe to be welded, and then turn off the third drive motor 102; S2: Place the two pipes to be welded between the upper ring body 111 and the lower ring body 112 of a pair of clamping structures 12, adjust the position of the pipes to be welded, and then start the driving cylinder 115 in the clamping structure 12 to drive the arc-shaped clamping block 116 to move toward the pipes. The rubber pad 121 tightly clamps the pipes to ensure that the pipes are firmly fixed and will not shake or shift during the welding process; S3: Start the third drive motor 102 again, and drive the pair of sliding mountings 103 to slowly approach each other through the bidirectional reverse thread screw 101, so that the welding points of the two pipes to be welded are close to each other until they gradually touch each other. At the same time, observe the butt joint of the pipes to be welded. Fine-tune the rotation of the bidirectional reverse thread screw 101 through the third drive motor 102 to accurately adjust the distance and butt joint position between the two pipes to be welded, so that the welding points of the pipes are tightly fitted and the ideal welding state is achieved. Then, turn off the third drive motor 102; S4: Based on the diameter of the pipe to be welded and the welding requirements, the first drive motor 210 is started to drive the threaded rod 209 to rotate. The rotation of the threaded rod 209 drives the sliding block 208 to slide up and down in the sliding groove 211 of the mounting frame 207, thereby adjusting the height of the welding head 204 so that one end of the welding head 204 is located between the pair of rotating rings 202 and maintains a suitable distance and angle with the pipe welding point to facilitate the welding operation. Then, the first drive motor 210 is turned off. S5: The welding head 204 is started, and the second drive motor 212 is started at the same time. The second drive motor 212 drives the rotating ring 202 meshing with the sub-gear 215 to rotate through the main gear 214, and then drives the other rotating ring 202 to rotate, so that the welding structure 22 performs a circular motion along the rotating ring 202. During the rotation process, the welding head 204 performs a circumferential welding on the pipe welding part. According to the welding process requirements, the welding speed and welding current are controlled to ensure the welding quality. S6: After welding is completed, the second drive motor 212 is turned off, the rotation of the rotary welding assembly 20 is stopped, and the drive cylinder 115 in the clamping structure 12 is started to release the pipe by the arc clamping block 116, and the welded pipe is removed from the clamping assembly 10. Then, the welding head 204 is adjusted to return to the initial position by the first drive motor 210, and then the pair of sliding mounting bases 103 are restored to the initial position by the third drive motor 102 so as to perform the next welding operation; S7: Clean and inspect the equipment. If any parts are damaged, repair or replace them in time to prepare for subsequent use.

[0059] The method of the present invention can quickly complete the pipeline welding process.

[0060] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pipeline welding device, characterized in that: include: A clamping assembly (10), the clamping assembly (10) is arranged on the base structure and is used to clamp and move two pipes to be welded; A rotary welding assembly (20), the rotary welding assembly (20) being arranged on the clamping assembly (10) and being used for welding two pipes; The rotary welding assembly (20) comprises a rotary structure (21) and a welding structure (22); the rotary structure (21) comprises a driving member (200), a pair of mounting brackets (201) and a pair of rotating rings (202); the pair of mounting brackets (201) are respectively arranged on the clamping assembly (10); the pair of rotating rings (202) are respectively arranged on the pair of mounting brackets (201) and are rotatably connected to the mounting brackets (201); the pair of rotating rings (202) are connected via a plurality of connecting rods (203); the driving member (200) is arranged on one of the mounting brackets (201) and is arranged in cooperation with one of the rotating rings (202) to drive the rotating ring (202) to rotate; and the welding structure (22) is arranged on the other rotating ring (202) and rotates with the rotating ring (202).

2. A pipeline welding device according to claim 1, characterized in that: The welding structure (22) comprises a welding head (204), an adjustable mounting member (205) and a mounting ring (206), wherein the mounting ring (206) is sleeved on one end of one of the rotating rings (202) and is fixedly connected to the rotating ring (202), the adjustable mounting member (205) is fixedly arranged on the mounting ring (206), the welding head (204) is arranged on the adjustable mounting member (205), and one end is located between a pair of rotating rings (202), and the adjustable mounting member (205) is used to adjust the height of the welding head (204).

3. A pipeline welding device according to claim 2, characterized in that: The adjustable mounting member (205) includes a mounting frame (207), a sliding block (208), a threaded rod (209) and a first drive motor (210). The mounting frame (207) is arranged on the mounting ring (206) and one end is fixedly connected to the mounting ring (206). The threaded rod (209) is arranged in the mounting frame (207). The two ends of the threaded rod (209) respectively pass through both sides of the mounting frame (207) and are rotatably connected to the mounting frame (207). The sliding block (208) is arranged in the mounting frame (207) and is slidably connected to the mounting frame (207). The sliding block (208) is sleeved on the threaded rod (209) and is threadedly connected to the threaded rod (209). The first drive motor (210) is fixedly arranged on the top of the mounting frame (207). The output shaft of the first drive motor (210) is fixedly connected to the threaded rod (209) and is used to drive the threaded rod (209) to rotate. Sliding grooves (211) are provided on both sides of the mounting frame (207). The two ends of the sliding block (208) are respectively located in the sliding grooves (211) and are slidably connected to the sliding grooves (211). The welding head (204) is fixedly arranged at one end of the sliding block (208).

4. A pipeline welding device according to claim 3, characterized in that: The driving member (200) comprises a second driving motor (212), an L-shaped mounting seat (213), a main gear (214) and a sub-gear (215), wherein the sub-gear (215) is sleeved on one end of another rotating ring (202) and fixedly connected to the rotating ring (202), the L-shaped mounting seat (213) is fixedly arranged on the mounting bracket (201), the second driving motor (212) is fixedly arranged on the L-shaped mounting seat (213), the output shaft of the second driving motor (212) passes through one side of the L-shaped mounting seat (213) and is rotationally connected to the L-shaped mounting seat (213), and the main gear (214) is fixedly arranged at the end of the output shaft of the second driving motor (212) and is meshed with the sub-gear (215).

5. A pipeline welding device according to claim 4, characterized in that: The mounting bracket (201) includes a fixed ring (216) and a pair of supporting legs (217), one end of the pair of supporting legs (217) is fixedly connected to the bottom of the fixed ring (216), the rotating ring (202) is arranged in the fixed ring (216) and is rotatably connected to the fixed ring (216), and the L-shaped mounting seat (213) is fixedly arranged on the top of the fixed ring (216).

6. A pipeline welding device according to claim 5, characterized in that: The clamping assembly (10) includes a sliding structure (11) and a pair of clamping structures (12). The sliding structure (11) includes a mounting base (100), a bidirectional reverse screw (101), a third drive motor (102), a pair of sliding mounting seats (103) and a pair of sliding rails (104). The mounting base (100) is arranged on the basic structure. The pair of sliding rails (104) are fixedly arranged on the mounting base (100) and are respectively located on both sides of the mounting base (100). The pair of sliding mounting seats (103) are arranged on the pair of sliding rails (104) and are respectively slidably connected to the pair of sliding rails (104). The pair of clamping structures (12) are respectively arranged on the pair of sliding mounting seats (103). The bidirectional reverse screw (101) is arranged on the pair of sliding rails (104). ), a pair of rotating mounting seats (105) are fixedly provided on the mounting base (100), both ends of the bidirectional reverse thread screw (101) respectively pass through the pair of rotating mounting seats (105) and are rotatably connected to the pair of rotating mounting seats (105), a pair of sliding mounting seats (103) are provided with threaded sliders (106) at the bottom, one end of the threaded slider (106) is fixedly connected to the bottom of the sliding mounting seat (103), and the other end is threadedly connected to the bidirectional reverse thread screw (101), a third driving motor (102) is fixedly provided on the mounting base (100), an output shaft of the third driving motor (102) is fixedly connected to the end of one end of the bidirectional reverse thread screw (101), and is used to drive the bidirectional reverse thread screw (101), and the other end of the support leg (217) is fixedly provided on the mounting base (100).

7. A pipeline welding device according to claim 6, characterized in that: A pair of limiting members (107) is provided on the mounting base (100), and the pair of limiting members (107) are fixedly arranged on both sides of the mounting base (100), and the limiting members (107) include limiting slide bars (108) and a pair of fixed mounting seats (109), and the pair of fixed mounting seats (109) are respectively arranged on both sides of the mounting base (100) and are arranged in conjunction with the sliding track (104), and the two ends of the limiting slide bar (108) are respectively fixedly connected to the pair of fixed mounting seats (109), and the pair of sliding mounting seats (103) are respectively slidably connected to the limiting slide bars (108) in the pair of limiting members (107).

8. A pipeline welding device according to claim 7, characterized in that: A pair of sliding mounting blocks (110) are provided on the sliding mounting seat (103), the pair of sliding mounting blocks (110) are respectively located on both sides of the top of the sliding mounting seat (103), and are fixedly connected to the sliding mounting seat (103) by bolts, and the pair of sliding mounting blocks (110) are respectively slidably connected to the limiting slide bars (108) in the pair of limiting members (107).

9. The pipeline welding device according to claim 8, characterized in that: The clamping structure (12) comprises an upper ring body (111), a lower ring body (112) and a pair of fixed brackets (113), one end of the pair of fixed brackets (113) is fixedly connected to a pair of sliding mounting blocks (110) on the sliding mounting seat (103), the lower ring body (112) is fixedly arranged on the other end of the pair of fixed brackets (113), the upper ring body (111) is arranged above the lower ring body (112), and is fixedly connected to the lower ring body (112) by bolts, and three clamping members (114) are provided on the upper ring body (111) and the lower ring body (112), two of which are provided on the upper ring body (111), and the other clamping member (114) is provided on the lower ring body (112), and the three clamping members (114) are arranged in a circle with the center of the upper ring body (111) and the lower ring body (112) being arranged in a circle. The clamping members (114) are arranged in an array, and include a driving cylinder (115) and an arc-shaped clamping block (116), wherein the driving cylinders (115) in the two clamping members (114) arranged on the upper ring body (111) are fixedly connected to the upper ring body (111), and the output shafts of the driving cylinders (115) in the two clamping members (114) arranged on the upper ring body (111) pass through the upper ring body (111) and are slidably connected to the upper ring body (111), the driving cylinder (115) arranged on the lower ring body (112) is fixedly connected to the lower ring body (112), and the output shaft of the driving cylinder (115) arranged on the lower ring body (112) passes through the lower ring body (112) and is slidably connected to the lower ring body (112), and the arc-shaped clamping block (116) is arranged at the end of the output shaft of the driving cylinder (115).

10. A pipeline welding method, characterized in that: Pipeline welding is performed using a pipeline welding device according to any one of claims 1 to 9.

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