Automatic alignment welding device for fire protection pipes

Abstract

The present invention discloses an automatic alignment welding device for fire protection pipes, which specifically relates to the technical field of fire protection pipe welding, including a frame and a fire protection pipe body, wherein a welding mechanism is fixedly installed at the rear end of the frame, a clamping and rotating assembly and a processing assembly are symmetrically provided on the inner surface of the frame, and a slag knocking assembly is commonly provided on the front and rear of the inner surface of the frame. The automatic alignment welding device for fire protection pipes described in the present invention realizes automatic clamping and centroidal alignment of the fire protection pipe body by providing a clamping and rotating assembly, so that the interface of the two fire protection pipe bodies can be adjusted and changed in interface position by rotation, which can effectively eliminate poor welding caused by pipeline position deviation, ensure accurate position and appropriate angle when the pipelines are docked, ensure pipeline alignment during welding, ensure uniformity and sealing of welding, and improve the quality and stability of pipeline joints.

Description

Technical Field

[0001] The invention relates to the technical field of fire protection pipe welding, and in particular to an automatic alignment welding device for fire protection pipes. Background Art

[0002] Firefighting piping is a crucial component of firefighting systems. It's primarily used to transport firefighting water or other firefighting media to ensure rapid and effective firefighting in the event of a building fire. Firefighting piping is typically made from corrosion-resistant and high-strength materials such as galvanized steel pipe, seamless steel pipe, and stainless steel pipe.

[0003] Chinese patent publication number CN119216985B discloses an automatic alignment welding device for fire protection pipes, comprising a conveyor frame, on which two conveyor mechanisms are provided that are symmetrical in front and back, and a mounting frame is provided in the middle of the conveyor frame, a first electric push rod is provided at the bottom of the mounting frame, a first sliding mechanism is provided on the mounting frame, and three locking mechanisms are also provided on the mounting frame that are evenly distributed from front to back, and the first sliding mechanism is connected to the locking mechanism at the rear end of the mounting frame. The three sets of locking mechanisms provided in this solution can cooperate with the conveyor mechanism, and one set of locking mechanisms can be adjusted in distance according to welding requirements, so as to facilitate the fixed alignment of two-section and three-section fire protection pipes, and the alignment operation is simple and quick, thereby improving the efficiency of fire protection pipe alignment welding; however, the above patent document still has the following defects during implementation:

[0004] Although the above patent can realize the fixed alignment operation of the second and third sections of the fire protection pipes during implementation, it cannot realize the rotation of the fixed fire protection pipes, and it cannot realize the grinding and cutting of the fire protection pipes and the cleaning of the welding slag after welding. Summary of the Invention

[0005] The main purpose of the present invention is to provide an automatic alignment welding device for fire protection pipes, which can effectively solve the problems of being unable to rotate the fixed fire protection pipes, and being unable to grind the cuts of the fire protection pipes and clean the welding slag after welding.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automatic alignment welding device for fire protection pipes, comprising a frame and a fire protection pipe body, a welding mechanism fixedly installed at the rear end of the frame, a control box fixedly installed at the middle part of the front end of the frame, a clamping and rotating assembly and a processing assembly symmetrically arranged on the left and right inner surface of the frame, and a slag knocking assembly commonly arranged at the front and rear of the inner surface of the frame.

[0007] Preferably, the clamping and rotating assembly includes two slide plates fixedly connected to the inner surface of the frame, the inner surface of the frame is fixedly connected to a placement plate, the inner surfaces of the two slide plates are jointly provided with a placement and conveying mechanism, the outer surface of the placement and conveying mechanism is provided with a rotating mechanism, and the lower end of the placement and conveying mechanism is provided with a clamping mechanism.

[0008] Preferably, the placement and conveying mechanism includes two threaded rods that pass through the right end of the frame and extend to the left part of the inner surface of the slide plate for rotational connection. The outer surfaces of the two threaded rods are threadedly connected to two circular ring frames that are slidably connected to the inner surface of the slide plate. The inner surfaces of the two circular ring frames are both rotatably connected to groove rings. The right parts of the outer surfaces of the two threaded rods are commonly fixedly connected to a pulley group. The right end of the threaded rod located in the front is fixedly connected to a servo motor that is fixedly connected to the right end of the frame.

[0009] Preferably, the rotating mechanism includes two fixed blocks 2 fixedly connected to the front of the outer surface of the two circular ring frames, the inner surfaces of the two fixed blocks 2 are commonly fixedly connected to a round rod, the right end of the round rod is fixedly connected to a dual-axis motor fixedly connected to the right fixed block 2, the outer surface of the round rod is fixedly connected to two gears, and the right ends of the two groove rings are fixedly connected to a gear ring meshing with the gears.

[0010] Preferably, the clamping mechanism includes a connecting plate fixedly connected to the lower ends of the two circular ring frames, the upper end of the connecting plate is fixedly connected to two fixed blocks 1, the inner surfaces of the two fixed blocks 1 are jointly rotatably connected to a threaded rod 2, the outer surface of the threaded rod 2 and the outer surface of the rotating rod fixedly connected to the right end output end of the dual-axis motor are jointly fixedly connected to a pulley group 2, the upper end of the connecting plate is fixedly connected to a placement box, the outer surface of the threaded rod 2 is threadedly connected to a push plate slidably connected to the inner surface of the placement box, and the left part of the inner surface of the placement box passes through and extends to the inner surfaces of the two circular ring frames and is jointly fixedly connected to a connecting pipe 1.

[0011] Preferably, the inner surfaces of the two groove rings are fixedly connected with three hollow blocks distributed in an annular manner at equal distances, the inner surfaces of the three hollow blocks on the same side are slidingly connected with a piston rod 1, and the ends of the three piston rods on the same side that are close to each other are fixedly connected with a clamping plate.

[0012] Preferably, the processing assembly includes rectangular plates that are fixedly connected to the inner surface of the frame symmetrically on both sides, and the inner surfaces of the two rectangular plates are symmetrically provided with groove mechanisms and cleaning mechanisms.

[0013] Preferably, the beveling mechanism includes a hollow rod fixedly connected to the inner surface of the rectangular plate, the inner surface of the hollow rod is slidably connected to piston rod 2, the lower part of the inner surface of the hollow rod passes through and extends to the inner surface of connecting tube 1 and is fixedly connected to connecting tube 2, the outer surface of connecting tube 1 and the outer surface of connecting tube 2 are jointly fixedly connected to a solenoid valve at the intersection, the upper end of piston rod 2 is fixedly connected to servo motor 2, and the output end of servo motor 2 is fixedly connected to a grinding disc through a rotating rod.

[0014] Preferably, the cleaning mechanism comprises an L-shaped plate fixedly connected to the second rear end of the piston rod, and a cleaning brush is fixedly connected to the upper end of the L-shaped plate.

[0015] Preferably, the slag knocking assembly includes a square plate and a retaining plate that are fixedly connected to the front and rear inner surface of the frame, the middle part of the front end of the frame passes through and extends to the rear end of the frame and is rotatably connected to a rotating shaft, the front end of the rotating shaft is fixedly connected to a servo motor three that is fixedly connected to the front end of the frame, the inner surfaces of the square plate and the retaining plate are slidably connected to a slag knocking rod, the outer surface of the slag knocking rod is sleeved with a spring, the two ends of the spring are respectively fixedly connected to the upper end of the square plate and the lower end of the retaining plate, and the middle part of the outer surface of the rotating shaft is fixedly connected to a cam.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, by providing a clamping and rotating component, the fire protection pipe body is automatically clamped and the center of the circle is aligned, so that the interface of the two fire protection pipe bodies can be adjusted and changed in the interface position by rotation, which can effectively eliminate the poor welding caused by the position deviation of the pipes, ensure the accurate position and appropriate angle when the pipes are connected, ensure the alignment of the pipes during the welding process, ensure the uniformity and sealing of the welding, and improve the quality and stability of the pipe joints.

[0018] 2. In the present invention, by providing a rotating mechanism, a beveling mechanism and a cleaning mechanism, the fire protection pipe body can effectively remove the unevenness or oxide layer on the pipe surface when the grinding disc rotates and the fire protection pipe body rotates, ensuring a clean and smooth surface during welding and reducing welding defects. In addition, the cleaning brush cleans the debris generated during the grinding process in real time to avoid contaminating the pipe surface, thereby improving the welding quality and sealing. The grinding and cleaning process reduces the error of manual operation and improves the alignment accuracy and welding reliability.

[0019] 3. In the present invention, a slag knocking assembly is provided, so that after welding, the fire protection pipe body can be cleaned by the upper end of the slag knocking rod rotating in coordination with the fire protection pipe body to clean the welding slag at the welding site under the action of the up and down movement of the slag knocking rod. The welding slag and impurities generated during the welding process can be removed, ensuring the cleanliness of the welding surface, preventing the welding slag from rusting and affecting the subsequent welding quality or sealing performance, and improving the flatness and sealing of the welding surface, thereby enhancing the reliability of the pipeline connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0022] Figure 3 This is a schematic structural diagram of the chute plate and placement plate of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the clamping and rotating assembly, the processing assembly and the slag knocking assembly of the present invention;

[0024] Figure 5 It is a schematic cross-sectional structure diagram of the placement and conveying mechanism of the present invention;

[0025] Figure 6 It is a schematic structural diagram of the rotating mechanism of the present invention;

[0026] Figure 7 Schematic diagram of the cross-sectional structure of the clamping mechanism of the present invention;

[0027] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 9 Schematic diagram of the cross-sectional structure of the processing component of the present invention;

[0029] Figure 10 It is a schematic structural diagram of the slag knocking assembly of the present invention.

[0030] In the figure: 1, frame; 2, welding mechanism; 3, control box; 4, fire protection pipe body; 5, clamping and rotating assembly; 51, slide plate; 52, placement plate; 53, placement and conveying mechanism; 531, threaded rod 1; 532, ring frame; 533, groove ring; 534, pulley group 1; 535, servo motor 1; 54, clamping mechanism; 541, connecting plate; 542, fixing block 1; 543, pulley group 2; 544, threaded rod 2; 545, push plate; 546, connecting pipe 1; 547, hollow block; 548, piston rod 1; 549, clamping plate; 5410, placement box; 55 , rotating mechanism; 551, fixed block two; 552, round rod; 553, gear ring; 554, gear; 555, dual-axis motor; 6, processing assembly; 61, rectangular plate; 62, beveling mechanism; 621, hollow rod; 622, connecting pipe two; 623, solenoid valve; 624, piston rod two; 625, servo motor two; 626, grinding disc; 63, cleaning mechanism; 631, L-shaped plate; 632, cleaning brush; 7, slag knocking assembly; 71, square plate; 711, rotating shaft; 712, servo motor three; 713, retaining plate; 714, slag knocking rod; 715, cam; 716, spring. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] Example 1, as Figure 1 and Figure 2 As shown, an automatic alignment welding device for fire protection pipes includes a frame 1 and a fire protection pipe body 4. A welding mechanism 2 is fixedly installed at the rear end of the frame 1, a control box 3 is fixedly installed at the middle of the front end of the frame 1, a clamping and rotating assembly 5 and a processing assembly 6 are symmetrically arranged on the left and right sides of the inner surface of the frame 1, and a slag knocking assembly 7 is commonly provided at the front and rear of the inner surface of the frame 1.

[0033] During the implementation of this embodiment, the fire-fighting pipe body 4 is placed on the clamping and rotating component 5 through relevant lifting equipment, and then the fire-fighting pipe body 4 is pushed into the inner cavity of the clamping and rotating component 5. At this time, the control box 3 is operated to clamp the fire-fighting pipe body 4 and transport and dock the fire-fighting pipe body 4. During the transportation process, the fire-fighting pipe body 4 is driven to rotate, and the processing component 6 is cooperated to perform groove grinding and cleaning operations on the interface of the fire-fighting pipe body 4. When the two fire-fighting pipe bodies 4 are moved close to each other to the set position, the welding mechanism 2 first spot-welds the grooves of the two rotating fire-fighting pipe bodies 4, and then performs repair welding. After welding, the slag knocking component 7 is used to knock the welding slag at the welding point.

[0034] The welding mechanism 2 mentioned above is a mature welding technology and equipment in the prior art. In this solution, its function of welding the fire protection pipe body 4 is utilized, and its internal structure, connection method and principle are no longer elaborated.

[0035] The control box 3 mentioned above is a mature control technology means and equipment in the prior art. In this solution, its controllable functions are utilized, and its internal structure, connection method and principle are not further elaborated.

[0036] Specifically, in order to realize the automatic symmetry and rotation of the fire protection pipe body 4, refer to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 In this embodiment, the clamping and rotating assembly 5 includes two slide plates 51 fixedly connected to the inner surface of the frame 1, a placement plate 52 is fixedly connected to the inner surface of the frame 1, and a placement and conveying mechanism 53 is commonly provided on the inner surfaces of the two slide plates 51. A rotating mechanism 55 is provided on the outer surface of the placement and conveying mechanism 53, and a clamping mechanism 54 is provided at the lower end of the placement and conveying mechanism 53.

[0037] For further information, see Figure 4 and Figure 5 In this embodiment, the placement and conveying mechanism 53 includes two threaded rods 531 that penetrate the right end of the frame 1 and extend to the left part of the inner surface of the slide plate 51 and are rotatably connected. The outer surfaces of the two threaded rods 531 are threadedly connected to two circular ring frames 532 that are slidably connected to the inner surface of the slide plate 51. The inner surfaces of the two circular ring frames 532 are rotatably connected to groove rings 533. The right parts of the outer surfaces of the two threaded rods 531 are fixedly connected to a pulley group 534. The right end of the front threaded rod 531 is fixedly connected to a servo motor 535 that is fixedly connected to the right end of the frame 1.

[0038] During the implementation process, the fire-fighting pipe body 4 is placed on the placement plate 52, and the relevant equipment is used to push the fire-fighting pipe body 4 into the inner cavity of the two circular ring frames 532, and the position of the fire-fighting pipe body 4 is clamped and fixed by the clamping mechanism 54. When the two fire-fighting pipe bodies 4 need to be aligned, the output end of the servo motor 535 is started to drive the threaded rod 531 at the front to rotate through the coupling, and the threaded rod 531 at the rear is driven to rotate under the transmission action of the pulley group 534. Due to the threaded connection, the two circular ring frames 532 drive the clamped fire-fighting pipe bodies 4 in the inner cavity of the slide plate 51, and move closer to each other, ensuring that the docking positions of the two fire-fighting pipe bodies 4 are highly consistent, avoiding poor welding due to deviation, and allowing the fire-fighting pipe bodies 4 to move closer together smoothly and evenly, thereby improving the quality and accuracy of welding.

[0039] For further information, see Figure 4 and Figure 6 In this embodiment, the rotating mechanism 55 includes two fixed blocks 551 fixedly connected to the front of the outer surface of the two circular ring frames 532, the inner surfaces of the two fixed blocks 551 are commonly fixedly connected to a round rod 552, the right end of the round rod 552 is fixedly connected to a dual-axis motor 555 located on the right side and fixedly connected to the fixed block 551, the outer surface of the round rod 552 is fixedly connected to two gears 554, and the right ends of the two groove rings 533 are fixedly connected to a gear ring 553 meshing with the gear 554.

[0040] For further information, see Figure 4 、 Figure 7 and Figure 8 In this embodiment, the clamping mechanism 54 includes a connecting plate 541 fixedly connected to the lower ends of the two circular frames 532, the upper end of the connecting plate 541 is fixedly connected to two fixed blocks 542, the inner surfaces of the two fixed blocks 542 are jointly rotatably connected with a threaded rod 2 544, the outer surface of the threaded rod 2 544 and the outer surface of the rotating rod fixedly connected to the right end output end of the dual-axis motor 555 are jointly fixedly connected with a pulley set 2 543, the upper end of the connecting plate 541 is fixedly connected to a placement box 5410, the outer surface of the threaded rod 2 544 is threadedly connected to a push plate 545 slidably connected to the inner surface of the placement box 5410, and the left part of the inner surface of the placement box 5410 passes through and extends to the inner surfaces of the two circular frames 532 and is jointly fixedly connected with a connecting pipe 1 546.

[0041] For further information, see Figure 4 、 Figure 7 and Figure 8 In this embodiment, the inner surfaces of the two groove rings 533 are fixedly connected with three hollow blocks 547 distributed in an annular manner and at equal distances. The inner surfaces of the three hollow blocks 547 on the same side are slidably connected with piston rods 548, and the ends of the three piston rods 548 on the same side that are close to each other are fixedly connected with clamping plates 549.

[0042] As can be seen from the above, when the fire-fighting pipe body 4 needs to be automatically clamped, the right end output end of the dual-axis motor 555 is started to drive the rotating rod to rotate through the coupling, and under the transmission action of the pulley group 2 543, the threaded rod 2 544 is rotated. Since the push plate 545 and the threaded rod 2 544 are threadedly connected, the push plate 545 moves to the left in the inner cavity of the placement box 5410, and the hydraulic oil in the inner cavity of the placement box 5410 enters the space formed by the circular frame 532 and the groove ring 533 through the two connecting pipes 1 546, and then enters Insert it into the hollow block 547, push the three piston rods 548 to slide in the hollow block 547, and squeeze the clamping plates 549 on the three piston rods 548 close to each other on the outer surface of the fire pipe body 4 to achieve clamping and fixing of the fire pipe body 4, so that the centers of the two fire pipe bodies 4 can be in the same horizontal plane, completing automatic alignment. The automatic clamping and alignment method not only improves the welding accuracy, avoids the errors that may be caused by manual operation, but also greatly improves the operating efficiency and safety, ensuring stable welding quality and firm pipeline connection.

[0043] Secondly, when the fire-fighting pipe body 4 needs to be rotated, the left end output end of the dual-axis motor 555 is started to drive the gear 554 on the round rod 552 to rotate through the coupling. Under the action of the meshing connection, the gear ring 553 drives the groove ring 533 to rotate on the inner surface of the ring frame 532, thereby realizing the rotation of the fire-fighting pipe body 4, so that the interfaces of the two fire-fighting pipe bodies 4 can be adjusted and changed in interface position by rotation, which can effectively eliminate poor welding caused by pipeline position deviation, ensure that the position of the pipeline is accurate and the angle is appropriate when the pipeline is docked, ensure the alignment of the pipeline during the welding process, reduce human operation errors, avoid welding defects caused by improper manual operation, ensure the uniformity and sealing of welding, improve the quality and stability of pipeline joints, thereby improving welding accuracy and extending service life.

[0044] The pulley group 1 534 and the pulley group 2 543 mentioned above are both composed of two pulleys and a belt.

[0045] The dual-axis motor 555 mentioned above is a mature driving technology means and equipment in the existing technology. In this solution, the couplings on both sides thereof can rotate independently and can stop after rotating to a set number of circles. Its internal structure, connection method and principle will not be elaborated further.

[0046] The connecting pipe 1 546 and the connecting pipe 2 622 mentioned above are both hoses.

[0047] Embodiment 2: Based on embodiment 1, this embodiment adds a processing component 6 for performing groove grinding on the outer surface of the weld joint of the fire protection pipe body 4, thereby achieving the purpose of performing groove grinding on the outer surface of the weld joint of the fire protection pipe body 4.

[0048] Specifically, in order to perform groove grinding on the outer surface of the welded joint of the fire protection pipe body 4, refer to Figure 4 and Figure 9 In this embodiment, the processing assembly 6 includes a rectangular plate 61 that is fixedly connected to the inner surface of the frame 1 symmetrically. The inner surfaces of the two rectangular plates 61 are symmetrically provided with a groove mechanism 62 and a cleaning mechanism 63.

[0049] For further information, see Figure 4 and Figure 9 In this embodiment, the beveling mechanism 62 includes a hollow rod 621 fixedly connected to the inner surface of the rectangular plate 61, and the inner surface of the hollow rod 621 is slidably connected to the piston rod 2 624. The lower part of the inner surface of the hollow rod 621 passes through and extends to the inner surface of the connecting pipe 1 546 and is fixedly connected to the connecting pipe 2 622. The intersection of the outer surface of the connecting pipe 1 546 and the outer surface of the connecting pipe 2 622 is fixedly connected to the electromagnetic valve 623. The upper end of the piston rod 2 624 is fixedly connected to the servo motor 2 625, and the output end of the servo motor 2 625 is fixedly connected to the grinding disc 626 through a rotating rod.

[0050] For further information, see Figure 4 and Figure 9 In this embodiment, the cleaning mechanism 63 includes an L-shaped plate 631 fixedly connected to the rear end of the piston rod 624, and a cleaning brush 632 is fixedly connected to the upper end of the L-shaped plate 631.

[0051] During the implementation process, when the fire-fighting pipe body 4 moves to the set position, the connecting pipe 1 546 is closed and the connecting pipe 2 622 is opened by controlling the solenoid valve 623, so that the push plate 545 continues to move to the left, and the hydraulic oil is injected into the inner cavity of the hollow rod 621 through the connecting pipe 2 622, pushing the piston rod 2 624 upward, so that the grinding disc 626 moves to the outer surface of the fire-fighting pipe body 4, and the output end of the servo motor 2 625 is started to drive the grinding disc 626 on the rotating rod to rotate through the coupling, so as to realize the grinding operation of the outer surface of the interface of the fire-fighting pipe body 4, and then cooperate with the rotating mechanism 55 to drive the fire-fighting pipe body 4 to rotate, so as to realize the grinding of the fire-fighting pipe body The outer surface of the fire pipe is ground 360 degrees to form a groove, and during the grinding process, the bristles on the cleaning brush 632 can be attached to the outer surface of the fire pipe body 4 to clean the debris generated by grinding, achieving grinding and cleaning at the same time, providing an ideal interface shape for alignment welding. The rotation of the grinding disk 626 and the rotation of the fire pipe body 4 are coordinated to effectively remove the unevenness or oxide layer on the pipe surface, ensuring a clean and smooth surface during welding and reducing welding defects. In addition, the cleaning brush 632 cleans the debris generated during the grinding process in real time to avoid contaminating the pipe surface, improving welding quality and sealing. The grinding and cleaning process reduces manual operation errors and improves alignment accuracy and welding reliability.

[0052] The grinding disc 626 mentioned above is a mature grinding part in the prior art. In this solution, its function of grinding the outer surface of the fire protection pipe body 4 is utilized, and its material and principle are not further elaborated.

[0053] The solenoid valve 623 mentioned above is a mature control technology means and equipment in the prior art. In this solution, its function of controlling the movement direction of the fluid is utilized, and its internal structure, connection method and principle are not further elaborated.

[0054] Example 3: In order to knock the welding slag after welding, refer to Figure 4 and Figure 10 In this embodiment, the slag knocking assembly 7 includes a square plate 71 and a retaining plate 713 which are fixedly connected to the front and rear inner surfaces of the frame 1. A rotating shaft 711 is rotatably connected to the middle part of the front end of the frame 1 and extends to the rear end of the frame 1. The front end of the rotating shaft 711 is fixedly connected to a servo motor 3 712 which is fixedly connected to the front end of the frame 1. A slag knocking rod 714 is slidably connected to the inner surfaces of the square plate 71 and the retaining plate 713. A spring 716 is sleeved on the outer surface of the slag knocking rod 714. The two ends of the spring 716 are respectively fixedly connected to the upper end of the square plate 71 and the lower end of the retaining plate 713. A cam 715 is fixedly connected to the middle part of the outer surface of the rotating shaft 711.

[0055] During the implementation process, when the welding of the two fire-fighting pipe bodies 4 is completed, the rear end output end of the servo motor 3 712 is started to drive the cam 715 on the rotating shaft 711 to rotate through the coupling, so that the cam 715 can intermittently squeeze the semicircular ball at the lower end of the slag knocking rod 714, so that the slag knocking rod 714 can move up and down on the inner surface of the square plate 71 and the retaining plate 713, so that the spring 716 is in a deformed state, and the upper end of the slag knocking rod 714 can cooperate with the rotation of the fire-fighting pipe body 4 to clean the welding slag at the welding point, which can remove the welding slag and impurities generated during the welding process, ensure the cleanliness of the welding surface, and prevent the welding slag from rusting and affecting the subsequent welding quality or sealing performance, thereby improving the flatness and sealing of the welding surface, thereby enhancing the reliability of the pipeline connection.

[0056] The servo motor 1 535, servo motor 2 625 and servo motor 3 712 mentioned above are all mature driving technology means and equipment in the existing technology. In this solution, their couplings can be used to rotate forward and reverse, and can stop in time after the set number of revolutions. Their internal structure, connection method and principle will not be elaborated on.

[0057] Working process: When in use, the fire-fighting pipe body 4 is placed by placing the conveying mechanism 53, and then the fire-fighting pipe body 4 is clamped and fixed by the clamping mechanism 54, so that the two fire-fighting pipe bodies 4 can realize automatic alignment of the center of the circle, and then the rotating mechanism 55 drives the fire-fighting pipe body 4 to rotate, and cooperates with the groove mechanism 62 and the cleaning mechanism 63 to grind and clean the outer surface of the interface. The rotation of the fire-fighting pipe body 4 can continuously adjust the docking position. After the welding is completed, the slag knocking component 7 is used to cooperate with the rotation of the fire-fighting pipe body 4 to clean the welding slag.

[0058] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire protection pipe automatic alignment welding device, comprising a frame (1) and a fire protection pipe body (4), characterized in that: A welding mechanism (2) is fixedly mounted on the rear end of the frame (1), a control box (3) is fixedly mounted on the middle of the front end of the frame (1), a clamping and rotating assembly (5) and a processing assembly (6) are symmetrically arranged on the inner surface of the frame (1), and a slag knocking assembly (7) is commonly arranged on the front and rear of the inner surface of the frame (1); The clamping and rotating assembly (5) includes two slide plates (51) fixedly connected to the inner surface of the frame (1); the inner surfaces of the two slide plates (51) are jointly provided with a placement and conveying mechanism (53); the outer surface of the placement and conveying mechanism (53) is provided with a rotating mechanism (55); and the lower end of the placement and conveying mechanism (53) is provided with a clamping mechanism (54); The placement and conveying mechanism (53) includes two threaded rods (531) that penetrate the right end of the frame (1) and extend to the left portion of the inner surface of the chute plate (51) and are rotatably connected. The outer surfaces of the two threaded rods (531) are threadedly connected to two circular ring frames (532) that are slidably connected to the inner surface of the chute plate (51). The inner surfaces of the two circular ring frames (532) are both rotatably connected to groove rings (533). The rotating mechanism (55) includes two second fixing blocks (551) fixedly connected to the front of the outer surfaces of the two circular ring frames (532); the inner surfaces of the two second fixing blocks (551) are fixedly connected to a round rod (552); the right end of the round rod (552) is fixedly connected to a dual-axis motor (555) located on the right fixed block (551); the outer surface of the round rod (552) is fixedly connected to two gears (554); the right ends of the two groove rings (533) are fixedly connected to a gear ring (553) meshing with the gear (554); The clamping mechanism (54) includes a connecting plate (541) fixedly connected to the lower ends of the two circular frames (532); the upper end of the connecting plate (541) is fixedly connected to a placement box (5410); the left portion of the inner surface of the placement box (5410) penetrates and extends to the inner surfaces of the two circular frames (532) and is fixedly connected to a connecting pipe (546); The processing assembly (6) comprises a rectangular plate (61) fixedly connected to the inner surface of the frame (1) in a symmetrical manner, and the inner surfaces of the two rectangular plates (61) are symmetrically provided with a groove mechanism (62) and a cleaning mechanism (63); The groove mechanism (62) includes a hollow rod (621) fixedly connected to the inner surface of the rectangular plate (61), the inner surface of the hollow rod (621) is slidably connected to the second piston rod (624), the lower portion of the inner surface of the hollow rod (621) penetrates and extends to the inner surface of the first connecting pipe (546) and is fixedly connected to the second connecting pipe (622), the outer surface of the first connecting pipe (546) and the outer surface of the second connecting pipe (622) are fixedly connected to a solenoid valve (623) at the intersection, the upper end of the second piston rod (624) is fixedly connected to the second servo motor (625), and the output end of the second servo motor (625) is fixedly connected to the grinding disc (626) via a rotating rod; The cleaning mechanism (63) comprises an L-shaped plate (631) fixedly connected to the rear end of the second piston rod (624), and a cleaning brush (632) is fixedly connected to the upper end of the L-shaped plate (631); The slag knocking assembly (7) comprises a square plate (71) and a retaining plate (713) fixedly connected to the front and rear inner surfaces of the frame (1); a rotating shaft (711) is rotatably connected to the middle of the front end of the frame (1) and extends to the rear end of the frame (1); a servo motor (712) fixedly connected to the front end of the frame (1) is fixedly connected to the front end of the rotating shaft (711); a slag knocking rod (714) is slidably connected to the inner surfaces of the square plate (71) and the retaining plate (713); a spring (716) is sleeved on the outer surface of the slag knocking rod (714); two ends of the spring (716) are fixedly connected to the upper end of the square plate (71) and the lower end of the retaining plate (713), respectively; and a cam (715) is fixedly connected to the middle of the outer surface of the rotating shaft (711).

2. The automatic alignment welding device for fire protection pipes according to claim 1, characterized in that: A placement plate (52) is fixedly connected to the inner surface of the frame (1).

3. The automatic alignment welding device for fire protection pipes according to claim 1, characterized in that: The right parts of the outer surfaces of the two threaded rods (531) are fixedly connected to a pulley assembly (534), and the right end of the threaded rod (531) located at the front is fixedly connected to a servo motor (535) fixedly connected to the right end of the frame (1).

4. The automatic alignment welding device for fire protection pipes according to claim 1, characterized in that: The upper end of the connecting plate (541) is fixedly connected to two fixed blocks (542), the inner surfaces of the two fixed blocks (542) are jointly rotatably connected to threaded rod (544), the outer surface of threaded rod (544) and the outer surface of the rotating rod fixedly connected to the right end output end of the dual-axis motor (555) are jointly fixedly connected to pulley group (543), and the outer surface of threaded rod (544) is threadedly connected to a push plate (545) that is slidably connected to the inner surface of the placement box (5410).

5. The automatic alignment welding device for fire protection pipes according to claim 1, characterized in that: The inner surfaces of the two groove rings (533) are both annularly and equidistantly distributed and fixedly connected with three hollow blocks (547); the inner surfaces of the three hollow blocks (547) on the same side are all slidably connected with piston rods (548); and the ends of the three piston rods (548) on the same side that are close to each other are all fixedly connected with clamping plates (549).

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